This commit was manufactured by cvs2svn to create tag

'RELENG_4_1_1_RELEASE'.
MFC: correct yes/no status check for a question
2026-10-28 19:34:43 +01:00 · 2000-09-25 21:57:54 +00:00 · 2000-09-25 07:15:42 +00:00 · 2000-09-25 06:52:21 +00:00 · 2000-09-25 06:51:43 +00:00 · 2000-09-25 06:50:55 +00:00
8186 changed files with 800664 additions and 917785 deletions
@@ -7,6 +7,8 @@
 #                       upgrades.
 # installworld        - Install everything built by "buildworld".
 # world               - buildworld + installworld.
+# buildkernel         - Rebuild the kernel and the kernel-modules.
+# installkernel       - Install the kernel and the kernel-modules.
 # update              - Convenient way to update your source tree (cvs).
 # upgrade             - Upgrade a.out (2.2.x/3.0) system to the new ELF way
 # most                - Build user commands, no libraries or include files.
@@ -14,6 +14,10 @@
 #	-DNOINFO do not make or install info files
 #	-DNOLIBC_R do not build libc_r.
 #	-DNO_FORTRAN do not build g77 and related libraries.
+#	-DNO_KERNELCONFIG do not run config in ${MAKE} buildkernel
+#	-DNO_KERNELDEPEND do not run ${MAKE} depend in ${MAKE} buildkernel
+#	-DNO_PORTSUPDATE do not update ports in ${MAKE} update
+#	-DNO_DOCUPDATE do not update doc in ${MAKE} update
 #	LOCAL_DIRS="list of dirs" to add additional dirs to the SUBDIR list

 #
@@ -109,6 +113,9 @@ CLEANDIR=	cleandir

 SUP?=		cvsup
 SUPFLAGS?=	-g -L 2 -P -
+.if defined(SUPHOST)
+SUPFLAGS+=	-h ${SUPHOST}
+.endif

 MAKEOBJDIRPREFIX?=	/usr/obj
 TARGET_ARCH?=	${MACHINE_ARCH}
@@ -123,6 +130,10 @@ WORLDTMP=	${OBJTREE}${.CURDIR}/${BUILD_ARCH}
 STRICTTMPPATH=	${WORLDTMP}/usr/sbin:${WORLDTMP}/usr/bin:${WORLDTMP}/usr/games
 TMPPATH=	${STRICTTMPPATH}:${PATH}

+TMPDIR?=	/tmp
+TMPPID!=	echo $$$$
+INSTALLTMP=	${TMPDIR}/install.${TMPPID}
+
 #
 # Building a world goes through the following stages
 #
@@ -183,7 +194,8 @@ WMAKEENV=	${CROSSENV} \
 WMAKE=		${WMAKEENV} ${MAKE} -f Makefile.inc1

 # install stage
-IMAKEENV=	${CROSSENV}
+IMAKEENV=	${CROSSENV} \
+		PATH=${STRICTTMPPATH}:${INSTALLTMP}
 IMAKE=		${IMAKEENV} ${MAKE} -f Makefile.inc1

 USRDIRS=	usr/bin usr/lib/compat/aout usr/games usr/libdata/ldscripts \
@@ -203,18 +215,6 @@ INCDIRS=	arpa g++/std objc protocols readline rpc rpcsvc openssl \
 # success, regardless of how old your existing system is.
 #
 buildworld:
-.if !defined(NOSECURE) && !defined(NO_OPENSSL) && exists(${.CURDIR}/secure) && \
-	(!defined(USA_RESIDENT) || (${USA_RESIDENT} != NO && \
-	${USA_RESIDENT} != YES))
-	@echo
-	@echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
-	@echo ">>> You must define the value of USA_RESIDENT as 'YES' or"
-	@echo ">>> 'NO' as appropriate, in the environment or /etc/make.conf"
-	@echo ">>> before building can proceed."
-	@echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
-	@/usr/bin/false
-.endif
-
 	@echo
 	@echo "--------------------------------------------------------------"
 	@echo ">>> Rebuilding the temporary build tree"
@@ -297,7 +297,14 @@ everything:
 # Installs everything compiled by a 'buildworld'.
 #
 installworld:
+	mkdir -p ${INSTALLTMP}
+	for prog in [ awk cat chflags chown date echo egrep find grep \
+	    install ln make makewhatis miniperl mtree mv perl rm sed sh sysctl \
+	    test true uname wc zic; do \
+		cp `which $$prog` ${INSTALLTMP}; \
+	done
 	cd ${.CURDIR}; ${IMAKE} reinstall
+	rm -rf ${INSTALLTMP}

 #
 # reinstall
@@ -338,7 +345,7 @@ reinstall:
 # be set to cross-build, we have to make sure MACHINE is set
 # properly.

-KERNEL?=	GENERIC GENERIC98
+KERNEL?=	GENERIC

 # The only exotic MACHINE_ARCH/MACHINE combination valid at this
 # time is i386/pc98. In all other cases set MACHINE equal to
@@ -378,14 +385,21 @@ buildkernel:
 	@echo "--------------------------------------------------------------"
 .for _kernel in ${BUILDKERNELS}
 	@echo "===> ${_kernel}"
+	mkdir -p ${KRNLOBJDIR}
+.if !defined(NO_KERNELCONFIG)
 	cd ${KRNLCONFDIR}; \
 		PATH=${TMPPATH} \
 		    config ${CONFIGARGS} -d ${KRNLOBJDIR}/${_kernel} ${_kernel}
+.endif
 	cd ${KRNLOBJDIR}/${_kernel}; \
-		MAKESRCPATH=${KRNLSRCDIR}/dev/aic7xxx \
-		    ${MAKE} -f ${KRNLSRCDIR}/dev/aic7xxx/Makefile; \
-		${WMAKEENV} MACHINE=${MACHINE} ${MAKE} depend; \
-		${WMAKEENV} MACHINE=${MACHINE} ${MAKE} all
+		MAKESRCPATH=${KRNLSRCDIR}/dev/aic7xxx/aicasm \
+		    ${MAKE} -f ${KRNLSRCDIR}/dev/aic7xxx/aicasm/Makefile
+.if !defined(NO_KERNELDEPEND)
+	cd ${KRNLOBJDIR}/${_kernel}; \
+		${WMAKEENV} MACHINE=${MACHINE} ${MAKE} KERNEL=kernel depend
+.endif
+	cd ${KRNLOBJDIR}/${_kernel}; \
+		${WMAKEENV} MACHINE=${MACHINE} ${MAKE} KERNEL=kernel all
 .endfor

 #
@@ -395,7 +409,7 @@ buildkernel:
 #
 installkernel:
 	cd ${KRNLOBJDIR}/${INSTALLKERNEL}; \
-		${IMAKEENV} MACHINE=${MACHINE} ${MAKE} install
+		${CROSSENV} MACHINE=${MACHINE} ${MAKE} KERNEL=kernel install

 #
 # update
@@ -417,15 +431,18 @@ update:
 .if defined(SUPFILE2)
 	@${SUP} ${SUPFLAGS} ${SUPFILE2}
 .endif
-.if defined(PORTSSUPFILE)
+.if defined(PORTSSUPFILE) && !defined(NO_PORTSUPDATE)
 	@${SUP} ${SUPFLAGS} ${PORTSSUPFILE}
 .endif
+.if defined(DOCSUPFILE) && !defined(NO_DOCUPDATE)
+	@${SUP} ${SUPFLAGS} ${DOCSUPFILE}
+.endif
 .endif
 .if defined(CVS_UPDATE)
 	@echo "--------------------------------------------------------------"
 	@echo ">>> Updating ${.CURDIR} from cvs repository" ${CVSROOT}
 	@echo "--------------------------------------------------------------"
-	cd ${.CURDIR}; cvs -q update -P -d
+	cd ${.CURDIR}; cvs -q update -rRELENG_4 -P -d
 .endif

 #
@@ -485,7 +502,7 @@ _strfile=	games/fortune/strfile

 bootstrap-tools:
 .for _tool in ${_strfile} usr.bin/yacc usr.bin/colldef usr.sbin/config \
-    gnu/usr.bin/texinfo
+    gnu/usr.bin/gperf gnu/usr.bin/texinfo
 	cd ${.CURDIR}/${_tool}; \
 		${MAKE} obj; \
 		${MAKE} depend; \
@@ -622,6 +639,7 @@ includes:
 	cd ${.CURDIR}/lib/libcam;		${MAKE} beforeinstall
 	cd ${.CURDIR}/lib/libdisk;		${MAKE} beforeinstall
 	cd ${.CURDIR}/lib/libedit;		${MAKE} beforeinstall
+	cd ${.CURDIR}/lib/libfetch;		${MAKE} beforeinstall
 	cd ${.CURDIR}/lib/libftpio;		${MAKE} beforeinstall
 	cd ${.CURDIR}/lib/libkvm;		${MAKE} beforeinstall
 	cd ${.CURDIR}/lib/libmd;		${MAKE} beforeinstall
@@ -660,8 +678,8 @@ includes:
 # libg++: libm
 # libkrb: libcrypt
 # libopie: libmd
-# libpam: libcom_err libcrypt libcrypto libgcc_pic libkrb libradius libskey \
-#	  libtacplus libutil libz libssh
+# libpam: libcom_err libcrypt libcrypto libgcc_pic libkrb libopie libradius \
+#	  libskey libtacplus libutil libz libssh
 # libradius: libmd
 # libreadline: libncurses
 # libskey: libcrypt libmd
@@ -714,7 +732,8 @@ _libkeycap=	usr.sbin/pcvt/keycap
 libraries:
 .for _lib in ${_csu} lib/libmd lib/libcrypt ${_secure_lib} ${_kerberosIV_lib} \
    ${_kerberos5_lib} gnu/lib/libgcc lib/libcom_err ${_libm} lib/libncurses \
-    lib/libradius lib/libskey lib/libtacplus lib/libutil lib/libz lib gnu/lib \
+    lib/libopie lib/libradius lib/libskey lib/libtacplus lib/libutil \
+    lib/libz lib gnu/lib \
    ${_libperl} usr.bin/lex/lib ${_libkeycap}
 .if exists(${.CURDIR}/${_lib})
 	cd ${.CURDIR}/${_lib}; \
@@ -11,14 +11,19 @@ The Makefile in this directory supports a number of targets for
 building components (or all) of the FreeBSD source tree, the most
 commonly used one being ``world'', which rebuilds and installs
 everything in the FreeBSD system from the source tree except the
-kernel and the contents of /etc.  Please see the top of the Makefile
-in this directory for more information on the standard build targets
-and compile-time flags.
+kernel, the kernel-modules and the contents of /etc.  The
+``buildkernel'' and ``installkernel'' targets build and install
+the kernel and the modules (see below).  Please see the top of
+the Makefile in this directory for more information on the
+standard build targets and compile-time flags.

-Building a kernel with config(8) is a somewhat more involved process,
-documentation for which can be found at:
+Building a kernel is a somewhat more involved process, documentation
+for which can be found at:
   http://www.freebsd.org/handbook/kernelconfig.html
 And in the config(8) man page.
+Note: If you want to build and install the kernel with the
+``buildkernel'' and ``installkernel'' targets, you have to build
+world before.  More information is available in the handbook.

 The sample kernel configuration files reside in the sys/i386/conf
 sub-directory (assuming that you've installed the kernel sources), the
@@ -35,7 +40,7 @@ bin		System/User commands.

 contrib		Packages contributed by 3rd parties.

-crypto		Export controlled stuff (see crypto/README).
+crypto		Cryptography stuff (see crypto/README).

 etc		Template files for /etc

@@ -56,7 +61,7 @@ release		Release building Makefile & associated tools.

 sbin		System commands.

-secure		DES and DES-related utilities - NOT FOR EXPORT!
+secure		DES and DES-related utilities.

 share		Shared resources.

@@ -1,9 +1,194 @@
-Updating Information for FreeBSD current users
+Updating Information for FreeBSD STABLE users

 This file is maintained by [email protected].  Please send new entries
-directly to him.  See end of file for further details.  For commonly
-done items, please see the end of the file.  Search for 'COMMON
-ITEMS:'
+directly to him.  See end of file for further details.  A reverse
+chronology since 4.0 was released is included, followed by the common
+items quick how-tos, followed by entries for versions of -current
+prior to 4.0 Release.
+
+20000907:
+	Changes to libkvm requires a recompile of the usual suspects.
+	(find /usr/src -name Makefile | xargs egrep LIBKVM)
+	This means that your world must match your kernel around this
+	point.
+
+20000904:
+	A new issue with the sendmail upgrade has come to light.
+	/etc/aliases has moved to /etc/mail/aliases.  Mergemaster will 
+	incorrectly install the default aliases in /etc/mail rather than
+	move the old one from /etc.  So you'll need to manually move the
+	file, create a symbolic link, remove the old /etc/aliases.db and
+	run newaliases.  For safety sake, you should stop sendmail
+	while doing this and run the upgrade when locally sourced email
+	is not likely to be generated.
+
+20000827:
+	sendmail has been updated from 8.9.3 to 8.11.0.  Some of the more
+	visible changes that may immediately affect your configuration
+	include:
+	- New default file locations from src/contrib/sendmail/cf/README
+	- newaliases limited to root and trusted users
+	- MSA port (587) turned on by default
+	- New queue file naming system so can't go from 8.11 -> 8.9
+	- FEATURE(`rbl') renamed to FEATURE(`dnsbl')
+	- FEATURE(`nullclient') is more full featured
+	- FEATURE(`nouucp') requires an argument: `reject' or `nospecial'
+	- mail.local FreeBSD-only -b option changed to -B
+	- See src/contrib/sendmail/RELEASE_NOTES for more info
+
+20000803:
+	The "installkernel" target has changed slightly. Now even if
+	you override KERNEL e.g. 'make installkernel KERNEL=MYKERNEL'
+	it will install the MYKERNEL file (built with the buildkernel
+	target) as /kernel rather than /MYKERNEL. Those who have
+	updated their /boot/loader.conf files to point to /MYKERNEL
+	should remove that entry or perform manual rename of /kernel
+	to /MYKERNEL.
+
+20000724:
+	FreeBSD 4.1 Released on or about this date.
+
+20000711:
+	If you use CVSUP or CTM to get CVS trees, AND you used to get 
+	the old crypto files from internat.freebsd.org AND you check
+	out files from the CVS tree with the cvs command, please read
+		http://people.freebsd.org/~imp/internat.txt
+	for details on potential problems that you might have and how
+	to get around them.
+
+	If you are merely a mirror, or don't answer yes to each of the
+	clauses above, you needn't worry.
+
+20000707:
+	We started building modules here.  IF you don't wish to
+	follow the documented proceedure for building kernels, then
+	you'll have to install new mk files from src/share/mk, or
+	define NO_MODULES.
+
+20000706:
+	Binutils were updated.  In order to build a kernel after this
+	date, you must follow the updating procedure for building
+	kernels exactly as presented here.  You may be able to get away
+	with doing it the old way, but if it breaks, make sure that you've
+	tried the "To build a kernel" section with a fresh /usr/obj
+	first.
+
+20000622:
+	The license on the softupdates is now a standard 2 clause
+	BSD license.  You may need to remove your symbolic links
+	that used to be required when updating.
+
+20000501:
+	At approximately this date, an incompatible kernel change
+	was made which means that if you update kernels accross
+	this boundary, you also have to update modules, and vice
+	versa.
+
+20000315:
+	FreeBSD 4.0 RELEASE.  Historical entries follow the common
+	items.
+
+****************************** 4.0 RELEASE ******************************
+
+COMMON ITEMS:
+
+	To build a kernel
+	-----------------
+	cd /usr/src
+	# If you have not already done so, please buildworld here
+	# You will also need to update your config file to 4.x.  Usually
+	# people tend to start with GENERIC from 4.x and hack from there.
+	make buildkernel KERNEL=<YOUR_KERNEL_HERE>
+	make installkernel  KERNEL=<YOUR_KERNEL_HERE>
+	# Verify that the new kernel works, it will be installed as
+	# /kernel
+
+	To rebuild disk /dev entries
+	----------------------------
+	MAKEDEV should be copied from src/etc/MAKEDEV to /dev before
+	starting the following:
+
+		For N in the list of disks
+			MAKEDEV N			# eg ad0
+			for M in the list of slices
+				MAKEDEV NsMa		# eg ad0s1a
+
+
+	To rebuild everything
+	---------------------
+	make world
+
+	Except when it doesn't work :-)
+
+	To update from 3.x to 4.x stable
+	--------------------------------
+	***********************************************************
+	READ -STABLE ARCHIVES FOR THE LAST WEEK OR TWO BEFORE
+	STARTING THIS PROCESS.  UPDATING MAY LAG BEHIND A LITTLE
+	A GOTCHAS ARE OFTEN REPORTED IN [email protected]
+	BEFORE BEING INCLUDED HERE.  IF YOU ARE GOING TO DO REMOTE
+	MACHINES, MAKE SURE THAT THE EXACT VERSION YOU ARE UPDATING
+	THEM TO WORKS ON LOCAL MACHINES BEFORE PROCEEDING.
+	***********************************************************
+	<see notes below>				[3]
+	cd /usr/src
+	<see notes below>				[2]
+	make buildworld
+	<follow directions to build/install a kernel>
+	cd /usr/src/sbin/mknod
+	make install
+	<follow rebuild disk /dev entries above>	[1]
+	reboot
+	<in single user>
+	cd /usr/src
+	cd gnu/usr.bin/texinfo/install-info
+	make install
+	cd ../../../..
+	ldconfig -R /usr/obj/usr/src/lib/libc
+	make installworld				[5]
+	mergemaster					[4]
+	reboot
+	<multi-user>
+
+	[1] You may need to switch from wd to ad ala 19991210.  In
+	addition, you should disable any third party modules such as
+	vmware so that you don't crash your system on reboot.
+	[2] If you have any of the following in your /etc/make.conf,
+	please comment them out before following these instructions
+	and then do a make buildworld + make installworld after you
+	are back to <multi-user> above:
+		MAKE_KERBEROS4
+	[3] Update to 4.x-stable sources.  Make sure that you get all
+	the parts.  If you are using cvsup files that are older than a
+	couple of months, be sure they have all the components listed
+	in /usr/share/examples/cvsup.  Crypto and secure are now
+	required.
+	[4] This step is optional, but is generally a good idea.  If
+	you wish to use many of the new features in 4.x, you must do
+	this anyway.
+
+	To update from 4.0-RELEASE or later to the most current
+	4.x-STABLE
+	----------
+	make buildworld
+	make buildkernel KERNEL=YOUR_KERNEL_HERE
+	make installkernel KERNEL=YOUR_KERNEL_HERE
+	reboot	(in single user) [1]
+	make installworld
+	mergemaster
+	reboot
+
+	[1] You can often get away without doing this step as the
+	system will be properly updated.  During the running of the
+	installworld, however, system components may break and other
+	oddities may happen.  Don't do this on systems that aren't
+	otherwise quiet as unpredictable results may happen.  If in
+	doubt, reboot into single user.  For remote installs, keep
+	a separate kernel around and use a serial console if at all
+	possible.
+
+What follows are older entries for those people upgrading from earlier
+versions of -stable/-current.

 20000308:
 	The binary interface of perl to its modules changed.  You
@@ -617,56 +802,6 @@ http://www.freebsd.org/cgi/getmsg.cgi?fetch=827400+0+current/freebsd-current
 	to silence warnings from authentication programs (login, etc).
 	See src/etc/pam.conf for a sample.

-COMMON ITEMS:
-
-	To build a kernel
-	-----------------
-	Update config, genassym and go:
-		cd src/usr.bin/genassym
-		make depend all install clean
-		cd ../../usr.sbin/config
-		make depend all install clean
-		cd ../../sys/i386/conf
-		config YOUR_KERNEL_HERE
-		cd ../../compile/YOUR_KERNEL_HERE
-		make depend && make
-		make install
-
-	To rebuild disk /dev entries
-	----------------------------
-
-	MAKEDEV should be copied from src/etc/MAKEDEV to /dev before
-	starting the following:
-
-		For N in the list of disks
-			MAKEDEV N			# eg ad0
-			for M in the list of slices
-				MAKEDEV NsMa		# eg ad0s1a
-
-
-	To rebuild everything
-	---------------------
-	make world
-
-	Except when it doesn't work.
-
-	To update from 3.x to 4.0 stable
-	--------------------------------
-	cd /usr/src
-	make buildworld
-	cd sbin/mknod
-	make install
-	<follow directions to build/install a kernel>
-	<follow rebuild disk /dev entries above>	[*]
-	reboot
-	<in single user>
-	cd /usr/src
-	make -DNOINFO installworld
-	make installworld
-
-	[*] You may need to switch from wd to ad ala 19991210
-
-
 FORMAT:

 This file contains a list, in reverse chronologocal order, of major
@@ -5,7 +5,6 @@ SUBDIR= cat \
 	chio \
 	chmod \
 	cp \
-	csh \
 	date \
 	dd \
 	df \
@@ -31,6 +30,10 @@ SUBDIR= cat \
 	sync \
 	test

+.if !defined(NO_TCSH)
+SUBDIR+=csh
+.endif
+
 .if !defined(NO_SENDMAIL)
 SUBDIR+=rmail
 .endif
@@ -37,14 +37,13 @@
 .\"
 .Dd May 2, 1995
 .Dt CAT 1
-.Os BSD 3
+.Os
 .Sh NAME
 .Nm cat
 .Nd concatenate and print files
 .Sh SYNOPSIS
 .Nm cat
 .Op Fl benstuv
-.Op Fl
 .Op Ar
 .Sh DESCRIPTION
 The
@@ -52,8 +51,14 @@ The
 utility reads files sequentially, writing them to the standard output.
 The
 .Ar file
-operands are processed in command line order.
-A single dash represents the standard input.
+operands are processed in command-line order.
+If
+.Ar file
+is a single dash
+.Pq Sq \&-
+or absent,
+.Nm
+reads from the standard input.
 .Pp
 The options are as follows:
 .Bl -tag -width indent
@@ -94,30 +99,92 @@ characters (with the high bit set) are printed as
 .Sh DIAGNOSTICS
 The
 .Nm
-utility exits 0 on success, and >0 if an error occurs.
-.Sh BUGS
-Because of the shell language mechanism used to perform output
-redirection, the command
-.Dq Li cat file1 file2 > file1
-will cause the original data in file1 to be destroyed!
+utility exits 0 on success or >0 if an error occurred.
+.Sh EXAMPLES
+The command:
+.Bd -literal -offset indent
+.Ic cat file1
+.Ed
+.Pp
+will print the contents of
+.Ar file1
+to the standard output.
+.Pp
+The command:
+.Bd -literal -offset indent
+.Ic cat file1 file2 > file3
+.Ed
+.Pp
+will sequentially print the contents of
+.Ar file1
+and
+.Ar file2
+to the file
+.Ar file3 ,
+truncating
+.Ar file3
+if it already exists.
+See the manual page for your shell (i.e.,
+.Xr sh 1 )
+for more information on redirection.
+.Pp
+The command:
+.Bd -literal -offset indent
+.Ic cat file1 - file2 - file3
+.Ed
+.Pp
+will print the contents of
+.Ar file1 ,
+print data it receives from the standard input until it receives an
+.Dv EOF
+.Pq Sq ^D
+character, print the contents of
+.Ar file2 ,
+read and output contents of the standard input again, then finally output
+the contents of
+.Ar file3 .
+Note that if the standard input referred to a file, the second dash
+on the command-line would have no effect, since the entire contents of the file
+would have already been read and printed by
+.Nm
+when it encountered the first
+.Ql \&-
+operand.
 .Sh SEE ALSO
 .Xr head 1 ,
 .Xr more 1 ,
 .Xr pr 1 ,
+.Xr sh 1 ,
 .Xr tail 1 ,
-.Xr vis 1
+.Xr vis 1 ,
+.Xr setbuf 3
 .Rs
 .%A Rob Pike
 .%T "UNIX Style, or cat -v Considered Harmful"
 .%J "USENIX Summer Conference Proceedings"
 .%D 1983
 .Re
+.Sh STANDARDS
+The
+.Nm
+utility is compliant with the
+.St -p1003.2-92
+specification.
+.Pp
+The flags
+.Op Fl benstv
+are extensions to the specification.
 .Sh HISTORY
 A
 .Nm
-command appeared in Version 1 AT&T UNIX. 
+utility appeared in
+.At v1 .
 .An Dennis Ritchie
-designed and wrote the first man page. 
+designed and wrote the first man page.
 It appears to have been
 .Xr cat 1 .
-
+.Sh BUGS
+Because of the shell language mechanism used to perform output
+redirection, the command
+.Dq Li cat file1 file2 > file1
+will cause the original data in file1 to be destroyed!
@@ -96,7 +96,7 @@ main(argc, argv)
 			tflag = vflag = 1;	/* -t implies -v */
 			break;
 		case 'u':
-			setbuf(stdout, (char *)NULL);
+			setbuf(stdout, NULL);
 			break;
 		case 'v':
 			vflag = 1;
@@ -249,7 +249,7 @@ raw_cat(rfd)
 			err(1, "%s", filename);
 		bsize = MAX(sbuf.st_blksize, 1024);
 		if ((buf = malloc(bsize)) == NULL)
-			err(1, NULL);
+			err(1, "buffer");
 	}
 	while ((nr = read(rfd, buf, bsize)) > 0)
 		for (off = 0; nr; nr -= nw, off += nw)
@@ -1,11 +0,0 @@
-#	@(#)Makefile	8.1 (Berkeley) 6/6/93
-# $FreeBSD$
-
-NOSHARED?=yes
-
-PROG=	chflags
-CFLAGS+=-Wall
-.PATH:	${.CURDIR}/../../lib/libc/gen
-SRCS=	chflags.c setflags.c
-
-.include <bsd.prog.mk>
@@ -1,138 +0,0 @@
-.\" Copyright (c) 1989, 1990, 1993, 1994
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" the Institute of Electrical and Electronics Engineers, Inc.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)chflags.1	8.4 (Berkeley) 5/2/95
-.\" $FreeBSD$
-.\"
-.Dd May 2, 1995
-.Dt CHFLAGS 1
-.Os
-.Sh NAME
-.Nm chflags
-.Nd change file flags
-.Sh SYNOPSIS
-.Nm chflags
-.Oo
-.Fl R
-.Op Fl H | Fl L | Fl P
-.Oc
-.Ar flags
-.Ar
-.Sh DESCRIPTION
-The
-.Nm
-utility modifies the file flags of the listed files
-as specified by the
-.Ar flags
-operand.
-.Pp
-The options are as follows:
-.Bl -tag -width indent
-.It Fl H
-If the
-.Fl R
-option is specified, symbolic links on the command line are followed.
-(Symbolic links encountered in the tree traversal are not followed.)
-.It Fl L
-If the
-.Fl R
-option is specified, all symbolic links are followed.
-.It Fl P
-If the
-.Fl R
-option is specified, no symbolic links are followed.
-.It Fl R
-Change the file flags for the file hierarchies rooted
-in the files instead of just the files themselves.
-.El
-.Pp
-Flags are a comma separated list of keywords.
-The following keywords are currently defined:
-.Bd -literal -offset indent compact
-arch	set the archived flag (super-user only)
-opaque	set the opaque flag (owner or super-user only)
-nodump	set the nodump flag (owner or super-user only)
-sappnd	set the system append-only flag (super-user only)
-schg	set the system immutable flag (super-user only)
-sunlnk	set the system undeletable flag (super-user only)
-uappnd	set the user append-only flag (owner or super-user only)
-uchg	set the user immutable flag (owner or super-user only)
-uunlnk	set the user undeletable flag (owner or super-user only)
-archived, sappend, schange, simmutable, uappend, uchange, uimmutable,
-sunlink, uunlink
-	aliases for the above
-.Ed
-.Pp
-Putting the letters
-.Dq no
-before an option causes the flag to be turned off.
-For example:
-.Bd -literal -offset indent compact
-nouchg	the immutable bit should be cleared
-.Ed
-.Pp
-Symbolic links do not have flags, so unless the
-.Fl H
-or
-.Fl L
-option is set,
-.Nm
-on a symbolic link always succeeds and has no effect.
-The
-.Fl H ,
-.Fl L
-and
-.Fl P
-options are ignored unless the
-.Fl R
-option is specified.
-In addition, these options override each other and the
-command's actions are determined by the last one specified.
-.Pp
-You can use "ls -lo" to see the flags of existing files.
-.Sh DIAGNOSTICS
-The
-.Nm
-utility exits 0 on success, and >0 if an error occurs.
-.Sh SEE ALSO
-.Xr ls 1 ,
-.Xr chflags 2 ,
-.Xr stat 2 ,
-.Xr fts 3 ,
-.Xr symlink 7
-.Sh HISTORY
-The
-.Nm
-command first appeared in
-.Bx 4.4 .
@@ -1,185 +0,0 @@
-/*
- * Copyright (c) 1992, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static const char copyright[] =
-"@(#) Copyright (c) 1992, 1993, 1994\n\
-	The Regents of the University of California.  All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)chflags.c	8.5 (Berkeley) 4/1/94";
-#endif
-static const char rcsid[] =
-	"$FreeBSD$";
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <err.h>
-#include <errno.h>
-#include <fts.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-extern u_long setflags __P((char **, u_long *, u_long *));
-
-void	usage __P((void));
-
-int
-main(argc, argv)
-	int argc;
-	char *argv[];
-{
-	FTS *ftsp;
-	FTSENT *p;
-	u_long clear, set;
-	long val;
-	int Hflag, Lflag, Pflag, Rflag, ch, fts_options, oct, rval;
-	char *flags, *ep;
-
-	Hflag = Lflag = Pflag = Rflag = 0;
-	while ((ch = getopt(argc, argv, "HLPR")) != -1)
-		switch (ch) {
-		case 'H':
-			Hflag = 1;
-			Lflag = Pflag = 0;
-			break;
-		case 'L':
-			Lflag = 1;
-			Hflag = Pflag = 0;
-			break;
-		case 'P':
-			Pflag = 1;
-			Hflag = Lflag = 0;
-			break;
-		case 'R':
-			Rflag = 1;
-			break;
-		case '?':
-		default:
-			usage();
-		}
-	argv += optind;
-	argc -= optind;
-
-	if (argc < 2)
-		usage();
-
-	fts_options = FTS_PHYSICAL;
-	if (Rflag) {
-		if (Hflag)
-			fts_options |= FTS_COMFOLLOW;
-		if (Lflag) {
-			fts_options &= ~FTS_PHYSICAL;
-			fts_options |= FTS_LOGICAL;
-		}
-	}
-
-	flags = *argv;
-	if (*flags >= '0' && *flags <= '7') {
-		errno = 0;
-		val = strtol(flags, &ep, 8);
-		if (val < 0)
-			errno = ERANGE;
-		if (errno)
-                        err(1, "invalid flags: %s", flags);
-                if (*ep)
-                        errx(1, "invalid flags: %s", flags);
-		set = val;
-                oct = 1;
-	} else {
-		if (setflags(&flags, &set, &clear))
-                        errx(1, "invalid flag: %s", flags);
-		clear = ~clear;
-		oct = 0;
-	}
-
-	if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL)
-		err(1, NULL);
-
-	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
-		switch (p->fts_info) {
-		case FTS_D:
-			if (Rflag)		/* Change it at FTS_DP. */
-				continue;
-			fts_set(ftsp, p, FTS_SKIP);
-			break;
-		case FTS_DNR:			/* Warn, chflag, continue. */
-			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
-			rval = 1;
-			break;
-		case FTS_ERR:			/* Warn, continue. */
-		case FTS_NS:
-			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
-			rval = 1;
-			continue;
-		case FTS_SL:			/* Ignore. */
-		case FTS_SLNONE:
-			/*
-			 * The only symlinks that end up here are ones that
-			 * don't point to anything and ones that we found
-			 * doing a physical walk.
-			 */
-			continue;
-		default:
-			break;
-		}
-		if (oct) {
-			if (!chflags(p->fts_accpath, set))
-				continue;
-		} else {
-			p->fts_statp->st_flags |= set;
-			p->fts_statp->st_flags &= clear;
-			if (!chflags(p->fts_accpath, p->fts_statp->st_flags))
-				continue;
-		}
-		warn("%s", p->fts_path);
-		rval = 1;
-	}
-	if (errno)
-		err(1, "fts_read");
-	exit(rval);
-}
-
-void
-usage()
-{
-	(void)fprintf(stderr,
-	    "usage: chflags [-R [-H | -L | -P]] flags file ...\n");
-	exit(1);
-}
@@ -54,7 +54,6 @@ static const char rcsid[] =
 #include "pathnames.h"

 extern	char *__progname;	/* from crt0.o */
-extern int optreset;		/* from getopt.o */

 static	void usage __P((void));
 static	void cleanup __P((void));
@@ -72,6 +72,7 @@ main(argc, argv)
 	int Hflag, Lflag, Pflag, Rflag, ch, fflag, fts_options, hflag, rval;
 	int vflag;
 	char *ep, *mode;
+	int newmode;

 	set = NULL;
 	omode = 0;
@@ -191,9 +192,11 @@ done:	argv += optind;
 		default:
 			break;
 		}
-		if (chmod(p->fts_accpath, oct ? omode :
-		    getmode(set, p->fts_statp->st_mode)) && !fflag) {
-			warn(p->fts_path);
+		newmode = oct ? omode : getmode(set, p->fts_statp->st_mode);
+		if ((newmode & ALLPERMS) == (p->fts_statp->st_mode & ALLPERMS))
+			continue;
+		if (chmod(p->fts_accpath, newmode) && !fflag) {
+			warn("%s", p->fts_path);
 			rval = 1;
 		} else {
 		    	if (vflag)
@@ -6,36 +6,70 @@
 #
 # To profile, put -DPROF in DEFS and -pg in CFLAGS, and recompile.

+TCSHDIR= ${.CURDIR}/../../contrib/tcsh
+.PATH: ${TCSHDIR}
+
 PROG=	csh
-DFLAGS=-DBUILTIN -DFILEC -DNLS -DSHORT_STRINGS
-CFLAGS+=-I${.CURDIR} -I. ${DFLAGS}
-SRCS=	alloc.c char.c const.c csh.c dir.c dol.c err.c exec.c exp.c file.c \
-	func.c glob.c hist.c init.c lex.c misc.c parse.c printf.c proc.c \
-	sem.c set.c str.c time.c const.h errnum.h
-.PATH:	${.CURDIR}/../../usr.bin/printf
+SUBDIR= nls
+DFLAGS=	-D_PATH_TCSHELL='"${DESTDIR}/bin/${PROG}"'  
+CFLAGS+= -I${TCSHDIR} -I${.CURDIR} -I. ${DFLAGS}
+SRCS=	sh.c sh.dir.c sh.dol.c sh.err.c sh.exec.c sh.char.c \
+	sh.exp.c sh.file.c sh.func.c sh.glob.c sh.hist.c sh.init.c \
+	sh.lex.c sh.misc.c sh.parse.c sh.print.c sh.proc.c sh.sem.c \
+	sh.set.c sh.time.c sh.h sh.char.h sh.dir.h sh.proc.h
+SRCS+=	sh.decls.h glob.c glob.h mi.termios.c mi.wait.h mi.varargs.h
+SRCS+=	tw.decls.h tw.h tw.help.c tw.init.c tw.parse.c tw.spell.c \
+	tw.comp.c tw.color.c
+SRCS+=	ed.chared.c ed.decls.h ed.defns.c ed.h ed.init.c ed.inputl.c \
+	ed.refresh.c ed.screen.c ed.xmap.c ed.term.c ed.term.h
+SRCS+=	tc.alloc.c tc.bind.c tc.const.c tc.decls.h tc.disc.c \
+	tc.func.c tc.os.c tc.os.h tc.printf.c tc.prompt.c \
+	tc.sched.c tc.sig.c tc.sig.h tc.str.c sh.types.h tc.vers.c tc.wait.h \
+	tc.who.c tc.h
+SRCS+=	tc.defs.c
+GENHDRS= ed.defns.h sh.err.h tc.const.h
+SRCS+=	${GENHDRS}

 MAN1=	csh.1
+MLINKS= csh.1 tcsh.1
 # MLINKS for Shell built in commands for which there are no userland
 # utilities of the same name are handled with the associated manpage,
 # builtin.1 in share/man/man1/.

-CLEANFILES+=const.h errnum.h
+DPADD=	${LIBTERMCAP} ${LIBCRYPT}
+LDADD=	-ltermcap -lcrypt

-const.h: errnum.h
+LINKS=	${BINDIR}/csh ${BINDIR}/tcsh

-errnum.h: err.c
+CLEANFILES= ${GENHDRS} csh.1
+
+csh.1: tcsh.man
+	ln -sf ${.ALLSRC} ${.TARGET}
+
+ed.defns.h: ed.defns.c
 	@rm -f ${.TARGET}
 	@echo '/* Do not edit this file, make creates it. */' > ${.TARGET}
-	@echo '#ifndef _h_sh_error' >> ${.TARGET}
-	@echo '#define _h_sh_error' >> ${.TARGET}
+	@echo '#ifndef _h_ed_defns' >> ${.TARGET}
+	@echo '#define _h_ed_defns' >> ${.TARGET}
+	grep '[FV]_' ${TCSHDIR}/ed.defns.c | grep '^#define' >> ${.TARGET}
+	@echo '#endif /* _h_ed_defns */' >> ${.TARGET}
+
+sh.err.h: sh.err.c
+	@rm -f ${.TARGET}
+	@echo '/* Do not edit this file, make creates it. */' > ${.TARGET}
+	@echo '#ifndef _h_sh_err' >> ${.TARGET}
+	@echo '#define _h_sh_err' >> ${.TARGET}
 	egrep 'ERR_' ${.ALLSRC} | egrep '^#define' >> ${.TARGET}
-	@echo '#endif /* _h_sh_error */' >> ${.TARGET}
+	@echo '#endif /* _h_sh_err */' >> ${.TARGET}

-const.h: const.c
+tc.const.h: tc.const.c sh.char.h config.h config_f.h sh.types.h sh.err.h
 	@rm -f ${.TARGET}
 	@echo '/* Do not edit this file, make creates it. */' > ${.TARGET}
-	${CC} -E ${CFLAGS} ${.ALLSRC} | egrep 'Char STR' | \
+	@echo '#ifndef _h_tc_const' >> ${.TARGET}
+	@echo '#define _h_tc_const' >> ${.TARGET}
+	${CC} -E ${CFLAGS} ${.ALLSRC} -D_h_tc_const | egrep 'Char STR' | \
 	    sed -e 's/Char \([a-zA-Z0-9_]*\)\(.*\)/extern Char \1[];/' | \
 	    sort >> ${.TARGET}
+	@echo '#endif /* _h_tc_const */' >> ${.TARGET}

 .include <bsd.prog.mk>
@@ -1,130 +0,0 @@
-/*-
- * Copyright (c) 1983, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)alloc.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <unistd.h>
-#include <stdlib.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-char   *memtop = NULL;		/* PWP: top of current memory */
-char   *membot = NULL;		/* PWP: bottom of allocatable memory */
-
-ptr_t
-Malloc(n)
-    size_t  n;
-{
-    ptr_t   ptr;
-
-    if (membot == NULL)
-	memtop = membot = sbrk(0);
-    if ((ptr = malloc(n)) == (ptr_t) 0) {
-	child++;
-	stderror(ERR_NOMEM);
-    }
-    return (ptr);
-}
-
-ptr_t
-Realloc(p, n)
-    ptr_t   p;
-    size_t  n;
-{
-    ptr_t   ptr;
-
-    if (membot == NULL)
-	memtop = membot = sbrk(0);
-    if ((ptr = realloc(p, n)) == (ptr_t) 0) {
-	child++;
-	stderror(ERR_NOMEM);
-    }
-    return (ptr);
-}
-
-ptr_t
-Calloc(s, n)
-    size_t  s, n;
-{
-    ptr_t   ptr;
-
-    if (membot == NULL)
-	memtop = membot = sbrk(0);
-    if ((ptr = calloc(s, n)) == (ptr_t) 0) {
-	child++;
-	stderror(ERR_NOMEM);
-    }
-
-    return (ptr);
-}
-
-void
-Free(p)
-    ptr_t   p;
-{
-    if (p)
-	free(p);
-}
-
-/*
- * mstats - print out statistics about malloc
- *
- * Prints two lines of numbers, one showing the length of the free list
- * for each size category, the second showing the number of mallocs -
- * frees for each size category.
- */
-void
-/*ARGSUSED*/
-showall(v, t)
-    Char **v;
-    struct command *t;
-{
-    memtop = (char *) sbrk(0);
-    (void) fprintf(cshout, "Allocated memory from 0x%lx to 0x%lx (%ld).\n",
-	    (unsigned long) membot, (unsigned long) memtop,
-                (unsigned long) (memtop - membot));
-}
@@ -1,316 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)char.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include "char.h"
-
-unsigned short _cmap[256] = {
-/*	nul		soh		stx		etx	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	eot		enq		ack		bel	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	bs		ht		nl		vt	*/
-	_CTR,		_CTR|_SP|_META,	_CTR|_NL|_META,	_CTR,
-
-/*	np		cr		so		si	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	dle		dc1		dc2		dc3	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	dc4		nak		syn		etb	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	can		em		sub		esc	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	fs		gs		rs		us	*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	sp		!		"		#	*/
-	_SP|_META,	0,		_QF,		_META,
-
-/*	$		%		&		'	*/
-	_DOL,		0,		_META|_CMD,	_QF,
-
-/*	(		)		*		+	*/
-	_META|_CMD,	_META,		_GLOB,		0,
-
-/*	,		-		.		/	*/
-	0,		0,		0,		0,
-
-/*	0		1		2		3	*/
-	_DIG|_XD,	_DIG|_XD,	_DIG|_XD,	_DIG|_XD,
-
-/*	4		5		6		7	*/
-	_DIG|_XD,	_DIG|_XD,	_DIG|_XD,	_DIG|_XD,
-
-/*	8		9		:		;	*/
-	_DIG|_XD,	_DIG|_XD,	0,		_META|_CMD,
-
-/*	<		=		>		?	*/
-	_META,		0,		_META,		_GLOB,
-
-/*	@		A		B		C	*/
-	0,		_LET|_UP|_XD,	_LET|_UP|_XD,	_LET|_UP|_XD,
-
-/*	D		E		F		G	*/
-	_LET|_UP|_XD,	_LET|_UP|_XD,	_LET|_UP|_XD,	_LET|_UP,
-
-/*	H		I		J		K	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	L		M		N		O	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	P		Q		R		S	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	T		U		V		W	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	X		Y		Z		[	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_GLOB,
-
-/*	\		]		^		_	*/
-	_ESC,		0,		0,		0,
-
-/*	`		a		b		c	*/
-  _QB|_GLOB|_META,	_LET|_LOW|_XD,	_LET|_LOW|_XD,	_LET|_LOW|_XD,
-
-/*	d		e		f		g	*/
-	_LET|_LOW|_XD,	_LET|_LOW|_XD,	_LET|_LOW|_XD,	_LET|_LOW,
-
-/*	h		i		j		k	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	l		m		n		o	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	p		q		r		s	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	t		u		v		w	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	x		y		z		{	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_GLOB,
-
-/*	|		}		~		del	*/
-	_META|_CMD,	0,		0,		_CTR,
-
-#if defined(SHORT_STRINGS) && !defined(KANJI)
-/****************************************************************/
-/* 128 - 255 The below is supposedly ISO 8859/1			*/
-/****************************************************************/
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	(undef)		(undef)		(undef)		(undef)		*/
-	_CTR,		_CTR,		_CTR,		_CTR,
-
-/*	nobreakspace	exclamdown	cent		sterling	*/
-	_SP,		0,		0,		0,
-
-/*	currency	yen		brokenbar	section		*/
-	0,		0,		0,		0,
-
-/*	diaeresis	copyright	ordfeminine	guillemotleft	*/
-	0,		0,		0,		0,
-
-/*	notsign		hyphen		registered	macron		*/
-	0,		0,		0,		0,
-
-/*	degree		plusminus	twosuperior	threesuperior	*/
-	0,		0,		0,		0,
-
-/*	acute		mu		paragraph	periodcentered	*/
-	0,		0,		0,		0,
-
-/*	cedilla		onesuperior	masculine	guillemotright	*/
-	0,		0,		0,		0,
-
-/*	onequarter	onehalf		threequarters	questiondown	*/
-	0,		0,		0,		0,
-
-/*	Agrave		Aacute		Acircumflex	Atilde		*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	Adiaeresis	Aring		AE		Ccedilla	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	Egrave		Eacute		Ecircumflex	Ediaeresis	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	Igrave		Iacute		Icircumflex	Idiaeresis	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	ETH		Ntilde		Ograve		Oacute		*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	Ocircumflex	Otilde		Odiaeresis	multiply	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	0,
-
-/*	Ooblique	Ugrave		Uacute		Ucircumflex	*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_UP,
-
-/*	Udiaeresis	Yacute		THORN		ssharp		*/
-	_LET|_UP,	_LET|_UP,	_LET|_UP,	_LET|_LOW,
-
-/*	agrave		aacute		acircumflex	atilde		*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	adiaeresis	aring		ae		ccedilla	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	egrave		eacute		ecircumflex	ediaeresis	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	igrave		iacute		icircumflex	idiaeresis	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	eth		ntilde		ograve		oacute		*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	ocircumflex	otilde		odiaeresis	division	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	0,
-
-/*	oslash		ugrave		uacute		ucircumflex	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-
-/*	udiaeresis	yacute		thorn		ydiaeresis	*/
-	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,	_LET|_LOW,
-#endif /* SHORT_STRINGS && !KANJI */
-};
-
-#ifndef NLS
-/* _cmap_lower, _cmap_upper for ISO 8859/1 */
-
-unsigned char _cmap_lower[256] = {
-	0000,	0001,	0002,	0003,	0004,	0005,	0006,	0007,
-	0010,	0011,	0012,	0013,	0014,	0015,	0016,	0017,
-	0020,	0021,	0022,	0023,	0024,	0025,	0026,	0027,
-	0030,	0031,	0032,	0033,	0034,	0035,	0036,	0037,
-	0040,	0041,	0042,	0043,	0044,	0045,	0046,	0047,
-	0050,	0051,	0052,	0053,	0054,	0055,	0056,	0057,
-	0060,	0061,	0062,	0063,	0064,	0065,	0066,	0067,
-	0070,	0071,	0072,	0073,	0074,	0075,	0076,	0077,
-	0100,	0141,	0142,	0143,	0144,	0145,	0146,	0147,
-	0150,	0151,	0152,	0153,	0154,	0155,	0156,	0157,
-	0160,	0161,	0162,	0163,	0164,	0165,	0166,	0167,
-	0170,	0171,	0172,	0133,	0134,	0135,	0136,	0137,
-	0140,	0141,	0142,	0143,	0144,	0145,	0146,	0147,
-	0150,	0151,	0152,	0153,	0154,	0155,	0156,	0157,
-	0160,	0161,	0162,	0163,	0164,	0165,	0166,	0167,
-	0170,	0171,	0172,	0173,	0174,	0175,	0176,	0177,
-	0200,	0201,	0202,	0203,	0204,	0205,	0206,	0207,
-	0210,	0211,	0212,	0213,	0214,	0215,	0216,	0217,
-	0220,	0221,	0222,	0223,	0224,	0225,	0226,	0227,
-	0230,	0231,	0232,	0233,	0234,	0235,	0236,	0237,
-	0240,	0241,	0242,	0243,	0244,	0245,	0246,	0247,
-	0250,	0251,	0252,	0253,	0254,	0255,	0256,	0257,
-	0260,	0261,	0262,	0263,	0264,	0265,	0266,	0267,
-	0270,	0271,	0272,	0273,	0274,	0275,	0276,	0277,
-	0340,	0341,	0342,	0343,	0344,	0345,	0346,	0347,
-	0350,	0351,	0352,	0353,	0354,	0355,	0356,	0357,
-	0360,	0361,	0362,	0363,	0364,	0365,	0366,	0327,
-	0370,	0371,	0372,	0373,	0374,	0375,	0376,	0337,
-	0340,	0341,	0342,	0343,	0344,	0345,	0346,	0347,
-	0350,	0351,	0352,	0353,	0354,	0355,	0356,	0357,
-	0360,	0361,	0362,	0363,	0364,	0365,	0366,	0367,
-	0370,	0371,	0372,	0373,	0374,	0375,	0376,	0377,
-};
-
-unsigned char _cmap_upper[256] = {
-	0000,	0001,	0002,	0003,	0004,	0005,	0006,	0007,
-	0010,	0011,	0012,	0013,	0014,	0015,	0016,	0017,
-	0020,	0021,	0022,	0023,	0024,	0025,	0026,	0027,
-	0030,	0031,	0032,	0033,	0034,	0035,	0036,	0037,
-	0040,	0041,	0042,	0043,	0044,	0045,	0046,	0047,
-	0050,	0051,	0052,	0053,	0054,	0055,	0056,	0057,
-	0060,	0061,	0062,	0063,	0064,	0065,	0066,	0067,
-	0070,	0071,	0072,	0073,	0074,	0075,	0076,	0077,
-	0100,	0101,	0102,	0103,	0104,	0105,	0106,	0107,
-	0110,	0111,	0112,	0113,	0114,	0115,	0116,	0117,
-	0120,	0121,	0122,	0123,	0124,	0125,	0126,	0127,
-	0130,	0131,	0132,	0133,	0134,	0135,	0136,	0137,
-	0140,	0101,	0102,	0103,	0104,	0105,	0106,	0107,
-	0110,	0111,	0112,	0113,	0114,	0115,	0116,	0117,
-	0120,	0121,	0122,	0123,	0124,	0125,	0126,	0127,
-	0130,	0131,	0132,	0173,	0174,	0175,	0176,	0177,
-	0200,	0201,	0202,	0203,	0204,	0205,	0206,	0207,
-	0210,	0211,	0212,	0213,	0214,	0215,	0216,	0217,
-	0220,	0221,	0222,	0223,	0224,	0225,	0226,	0227,
-	0230,	0231,	0232,	0233,	0234,	0235,	0236,	0237,
-	0240,	0241,	0242,	0243,	0244,	0245,	0246,	0247,
-	0250,	0251,	0252,	0253,	0254,	0255,	0256,	0257,
-	0260,	0261,	0262,	0263,	0264,	0265,	0266,	0267,
-	0270,	0271,	0272,	0273,	0274,	0275,	0276,	0277,
-	0300,	0301,	0302,	0303,	0304,	0305,	0306,	0307,
-	0310,	0311,	0312,	0313,	0314,	0315,	0316,	0317,
-	0320,	0321,	0322,	0323,	0324,	0325,	0326,	0327,
-	0330,	0331,	0332,	0333,	0334,	0335,	0336,	0337,
-	0300,	0301,	0302,	0303,	0304,	0305,	0306,	0307,
-	0310,	0311,	0312,	0313,	0314,	0315,	0316,	0317,
-	0320,	0321,	0322,	0323,	0324,	0325,	0326,	0367,
-	0330,	0331,	0332,	0333,	0334,	0335,	0336,	0377,
-};
-#endif /* NLS */
@@ -1,97 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)char.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-#include <ctype.h>
-
-extern unsigned short _cmap[];
-
-#ifndef NLS
-extern unsigned char _cmap_lower[], _cmap_upper[];
-
-#endif
-
-#define	_QF	0x0001		/* '" (Forward quotes) */
-#define	_QB	0x0002		/* ` (Backquote) */
-#define	_SP	0x0004		/* space and tab */
-#define	_NL	0x0008		/* \n */
-#define	_META	0x0010		/* lex meta characters, sp #'`";&<>()|\t\n */
-#define	_GLOB	0x0020		/* glob characters, *?{[` */
-#define	_ESC	0x0040		/* \ */
-#define	_DOL	0x0080		/* $ */
-#define	_DIG  	0x0100		/* 0-9 */
-#define	_LET  	0x0200		/* a-z, A-Z, _ */
-#define	_UP   	0x0400		/* A-Z */
-#define	_LOW  	0x0800		/* a-z */
-#define	_XD 	0x1000		/* 0-9, a-f, A-F */
-#define	_CMD	0x2000		/* lex end of command chars, ;&(|` */
-#define _CTR	0x4000		/* control */
-
-#define cmap(c, bits)	\
-	(((c) & QUOTE) ? 0 : (_cmap[(unsigned char)(c)] & (bits)))
-
-#define isglob(c)	cmap(c, _GLOB)
-#define isspc(c)	cmap(c, _SP)
-#define ismeta(c)	cmap(c, _META)
-#define iscmdmeta(c)	cmap(c, _CMD)
-#define letter(c)	(((c) & QUOTE) ? 0 : \
-			 (isalpha((unsigned char) (c)) || (c) == '_'))
-#define alnum(c)	(((c) & QUOTE) ? 0 : \
-		         (isalnum((unsigned char) (c)) || (c) == '_'))
-#ifdef NLS
-#define Isspace(c)	(((c) & QUOTE) ? 0 : isspace((unsigned char) (c)))
-#define Isdigit(c)	(((c) & QUOTE) ? 0 : isdigit((unsigned char) (c)))
-#define Isalpha(c)	(((c) & QUOTE) ? 0 : isalpha((unsigned char) (c)))
-#define Islower(c)	(((c) & QUOTE) ? 0 : islower((unsigned char) (c)))
-#define Isupper(c)	(((c) & QUOTE) ? 0 : isupper((unsigned char) (c)))
-#define Tolower(c) 	(((c) & QUOTE) ? 0 : tolower((unsigned char) (c)))
-#define Toupper(c) 	(((c) & QUOTE) ? 0 : toupper((unsigned char) (c)))
-#define Isxdigit(c)	(((c) & QUOTE) ? 0 : isxdigit((unsigned char) (c)))
-#define Isalnum(c)	(((c) & QUOTE) ? 0 : isalnum((unsigned char) (c)))
-#define Iscntrl(c) 	(((c) & QUOTE) ? 0 : iscntrl((unsigned char) (c)))
-#define Isprint(c) 	(((c) & QUOTE) ? 0 : isprint((unsigned char) (c)))
-#else
-#define Isspace(c)	cmap(c, _SP|_NL)
-#define Isdigit(c)	cmap(c, _DIG)
-#define Isalpha(c)	(cmap(c,_LET) && !(((c) & META) && AsciiOnly))
-#define Islower(c)	(cmap(c,_LOW) && !(((c) & META) && AsciiOnly))
-#define Isupper(c)	(cmap(c, _UP) && !(((c) & META) && AsciiOnly))
-#define Tolower(c)  (_cmap_lower[(unsigned char)(c)])
-#define Toupper(c)  (_cmap_upper[(unsigned char)(c)])
-#define Isxdigit(c)	cmap(c, _XD)
-#define Isalnum(c)	(cmap(c, _DIG|_LET) && !(((c) & META) && AsciiOnly))
-#define Iscntrl(c)  (cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
-#define Isprint(c)  (!cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
-#endif
@@ -0,0 +1,160 @@
+/* config.h.  Generated automatically by configure.  */
+/*
+ * config.h -- configure various defines for tcsh
+ *
+ * All source files should #include this FIRST.
+ *
+ * Edit this to match your system type.
+ */
+
+/* $FreeBSD$ */
+
+#ifndef _h_config
+#define _h_config
+/****************** System dependant compilation flags ****************/
+/*
+ * POSIX	This system supports IEEE Std 1003.1-1988 (POSIX).
+ */
+#define POSIX
+
+/*
+ * POSIXJOBS	This system supports the optional IEEE Std 1003.1-1988 (POSIX)
+ *		job control facilities.
+ */
+#define POSIXJOBS
+
+/*
+ * POSIXSIGS	Use the POSIX signal facilities to emulate BSD signals.
+ */
+/* #undef POSIXSIGS */
+
+/*
+ * VFORK	This machine has a vfork().  
+ *		It used to be that for job control to work, this define
+ *		was mandatory. This is not the case any more.
+ *		If you think you still need it, but you don't have vfork, 
+ *		define this anyway and then do #define vfork fork.  
+ *		I do this anyway on a Sun because of yellow pages brain damage,
+ *		[should not be needed under 4.1]
+ *		and on the iris4d cause	SGI's fork is sufficiently "virtual" 
+ *		that vfork isn't necessary.  (Besides, SGI's vfork is weird).
+ *		Note that some machines eg. rs6000 have a vfork, but not
+ *		with the berkeley semantics, so we cannot use it there either.
+ */
+#define VFORK
+
+/*
+ * BSDJOBS	You have BSD-style job control (both process groups and
+ *		a tty that deals correctly
+ */
+#define BSDJOBS
+
+/*
+ * BSDSIGS	You have 4.2-style signals, rather than USG style.
+ *		Note: POSIX systems should not define this unless they
+ *		have sigvec() and friends (ie: 4.3BSD-RENO, HP-UX).
+ */
+#define BSDSIGS
+
+/*
+ * BSDTIMES	You have BSD-style process time stuff (like rusage)
+ *		This may or may not be true.  For example, Apple Unix
+ *		(OREO) has BSDJOBS and BSDSIGS but not BSDTIMES.
+ */
+#define BSDTIMES
+
+/*
+ * BSDLIMIT	You have BSD-style resource limit stuff (getrlimit/setrlimit)
+ */
+#define BSDLIMIT
+
+/*
+ * BSDNICE	Your system uses setpriority() instead of nice, to
+ *		change a processes scheduling priority
+ */
+#define BSDNICE
+
+/*
+ * TERMIO	You have struct termio instead of struct sgttyb.
+ * 		This is usually the case for SYSV systems, where
+ *		BSD uses sgttyb. POSIX systems should define this
+ *		anyway, even though they use struct termios.
+ */
+#define TERMIO
+
+/*
+ * SYSVREL	Your machine is SYSV based (HPUX, A/UX)
+ *		NOTE: don't do this if you are on a Pyramid -- tcsh is
+ *		built in a BSD universe.
+ *		Set SYSVREL to 1, 2, 3, or 4, depending the version of System V
+ *		you are running. Or set it to 0 if you are not SYSV based
+ */
+#define SYSVREL	0
+
+/*
+ * YPBUGS	Work around Sun YP bugs that cause expansion of ~username
+ *		to send command output to /dev/null
+ */
+/* #undef YPBUGS */
+
+/*
+ * SIGVOID	Define this if your signal handlers return void.  On older
+ *		systems, signal returns int, but on newer ones, it returns void.
+ */
+#define SIGVOID 
+
+/*
+ * HAVEDUP2	Define this if your system supports dup2().
+ */
+#define HAVEDUP2
+
+/*
+ * UTHOST	Does the utmp file have a host field?
+ */
+#define UTHOST
+
+/*
+ * DIRENT	Your system has <dirent.h> instead of <sys/dir.h>
+ */
+#define DIRENT
+/****************** local defines *********************/
+/****************** configurable hacks ****************/
+
+#include <stdlib.h>
+
+/* have been moved to config_f.h */
+#include "config_f.h"
+
+#if defined(__FreeBSD__)
+#define NLS_BUGS
+/* we want to use the system malloc when we install as /bin/csh */
+#define SYSMALLOC
+#endif
+
+#if defined(__bsdi__)
+/*
+ * _PATH_TCSHELL      if you've change the installation location (vix)
+ */
+# ifdef _BSDI_VERSION >= 199701
+#  define _PATH_TCSHELL "/bin/tcsh"
+/* #  undef SYSMALLOC */
+#  define SYSMALLOC
+# else
+#  define _PATH_TCSHELL "/usr/contrib/bin/tcsh"
+# endif
+
+# undef NLS
+# undef NLS_CATALOGS
+
+#elif defined(__APPLE__)
+# define SYSMALLOC
+
+#else
+# define NLS_CATALOGS
+#endif
+
+#define KANJI
+#define DSPMBYTE
+
+#endif /* _h_config */
+/* config.h.in.  Generated automatically from configure.in by autoheader.  */
@@ -1,167 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)const.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-/*
- * tc.const.c: String constants for csh.
- */
-
-#include "csh.h"
-
-Char STR0[]             = { '0', '\0' };
-Char STR1[]             = { '1', '\0' };
-Char STRHOME[]		= { 'H', 'O', 'M', 'E', '\0' };
-Char STRLANG[]  	= { 'L', 'A', 'N', 'G', '\0' };
-Char STRLC_ALL[]        = { 'L', 'C', '_', 'A', 'L', 'L', '\0' };
-Char STRLC_CTYPE[]      = { 'L', 'C', '_', 'C', 'T', 'Y', 'P', 'E', '\0' };
-Char STRLC_COLLATE[]    = { 'L', 'C', '_', 'C', 'O', 'L', 'L', 'A', 'T', 'E', '\0' };
-Char STRLOGNAME[]	= { 'L', 'O', 'G', 'N', 'A', 'M', 'E', '\0' };
-Char STRLbrace[]	= { '{', '\0' };
-Char STRLparen[]	= { '(', '\0' };
-Char STRLparensp[]	= { '(', ' ', '\0' };
-Char STRNULL[]          = { '\0' };
-Char STRPATH[] 		= { 'P', 'A', 'T', 'H', '\0' };
-Char STRPWD[]		= { 'P', 'W', 'D', '\0' };
-Char STRQNULL[]		= { '\0' | QUOTE, '\0' };
-Char STRRbrace[]	= { '}', '\0' };
-Char STRspRparen[]	= { ' ', ')', '\0' };
-Char STRTERM[]		= { 'T', 'E', 'R', 'M', '\0' };
-Char STRUSER[]		= { 'U', 'S', 'E', 'R', '\0' };
-Char STRalias[]         = { 'a', 'l', 'i', 'a', 's', '\0' };
-Char STRand[]		= { '&', '\0' };
-Char STRand2[]		= { '&', '&', '\0' };
-Char STRaout[]          = { 'a', '.', 'o', 'u', 't', '\0' };
-Char STRargv[]          = { 'a', 'r', 'g', 'v', '\0' };
-Char STRbang[]		= { '!', '\0' };
-Char STRcaret[]		= { '^', '\0' };
-Char STRcdpath[]	= { 'c', 'd', 'p', 'a', 't', 'h', '\0' };
-Char STRcent2[] 	= { '%', '%', '\0' };
-Char STRcenthash[] 	= { '%', '#', '\0' };
-Char STRcentplus[] 	= { '%', '+', '\0' };
-Char STRcentminus[] 	= { '%', '-', '\0' };
-Char STRchase_symlinks[] = { 'c', 'h', 'a', 's', 'e', '_', 's', 'y', 'm', 'l',
-			    'i', 'n', 'k', 's', '\0' };
-Char STRchild[]		= { 'c', 'h', 'i', 'l', 'd', '\0' };
-Char STRcolon[]		= { ':', '\0' };
-Char STRcwd[]           = { 'c', 'w', 'd', '\0' };
-Char STRdefault[]	= { 'd', 'e', 'f', 'a', 'u', 'l', 't', '\0' };
-Char STRdot[]           = { '.', '\0' };
-Char STRdotdotsl[]	= { '.', '.', '/', '\0' };
-Char STRdotsl[]		= { '.', '/', '\0' };
-Char STRecho[]          = { 'e', 'c', 'h', 'o', '\0' };
-Char STRequal[]		= { '=', '\0' };
-Char STRfakecom[]	= { '{', ' ', '.', '.', '.', ' ', '}', '\0' };
-Char STRfakecom1[]	= { '`', ' ', '.', '.', '.', ' ', '`', '\0' };
-Char STRfignore[]	= { 'f', 'i', 'g', 'n', 'o', 'r', 'e', '\0' };
-#ifdef FILEC
-Char STRfilec[] = { 'f', 'i', 'l', 'e', 'c', '\0' };
-#endif /* FILEC */
-Char STRhistchars[]	= { 'h', 'i', 's', 't', 'c', 'h', 'a', 'r', 's', '\0' };
-Char STRtildothist[]    = { '~', '/', '.', 'h', 'i', 's', 't', 'o', 'r',
-		            'y', '\0' };
-Char STRhistfile[]	= { 'h', 'i', 's', 't', 'f', 'i', 'l', 'e', '\0' };
-Char STRhistory[] 	= { 'h', 'i', 's', 't', 'o', 'r', 'y', '\0' };
-Char STRhome[]          = { 'h', 'o', 'm', 'e', '\0' };
-Char STRignore_symlinks[] = { 'i', 'g', 'n', 'o', 'r', 'e', '_', 's', 'y', 'm',
-			    'l', 'i', 'n', 'k', 's', '\0' };
-Char STRignoreeof[]	= { 'i', 'g', 'n', 'o', 'r', 'e', 'e', 'o', 'f', '\0' };
-Char STRjobs[]          = { 'j', 'o', 'b', 's', '\0' };
-Char STRlistjobs[]	= { 'l', 'i', 's', 't', 'j', 'o', 'b', 's', '\0' };
-Char STRlogout[]        = { 'l', 'o', 'g', 'o', 'u', 't', '\0' };
-Char STRlong[]		= { 'l', 'o', 'n', 'g', '\0' };
-Char STRmail[]		= { 'm', 'a', 'i', 'l', '\0' };
-Char STRmh[]            = { '-', 'h', '\0' };
-Char STRminus[]		= { '-', '\0' };
-Char STRml[]		= { '-', 'l', '\0' };
-Char STRmn[]		= { '-', 'n', '\0' };
-Char STRmquestion[]     = { '?' | QUOTE, ' ', '\0' };
-Char STRnice[]		= { 'n', 'i', 'c', 'e', '\0' };
-Char STRnoambiguous[]	= { 'n', 'o', 'a', 'm', 'b', 'i', 'g', 'u', 'o', 'u',
-			    's', '\0' };
-Char STRnobeep[]	= { 'n', 'o', 'b', 'e', 'e', 'p', '\0' };
-Char STRnoclobber[]	= { 'n', 'o', 'c', 'l', 'o', 'b', 'b', 'e', 'r', '\0' };
-Char STRnoglob[]	= { 'n', 'o', 'g', 'l', 'o', 'b', '\0' };
-Char STRnohup[]		= { 'n', 'o', 'h', 'u', 'p', '\0' };
-Char STRnonomatch[]	= { 'n', 'o', 'n', 'o', 'm', 'a', 't', 'c', 'h', '\0' };
-Char STRnormal[]        = { 'n', 'o', 'r', 'm', 'a', 'l', '\0' };
-Char STRnotify[]	= { 'n', 'o', 't', 'i', 'f', 'y', '\0' };
-Char STRor[]		= { '|', '\0' };
-Char STRor2[]		= { '|', '|', '\0' };
-Char STRpath[]          = { 'p', 'a', 't', 'h', '\0' };
-Char STRprintexitvalue[] = { 'p', 'r', 'i', 'n', 't', 'e', 'x', 'i', 't', 'v',
-			    'a', 'l', 'u', 'e', '\0' };
-Char STRprompt[]        = { 'p', 'r', 'o', 'm', 'p', 't', '\0' };
-Char STRprompt2[]       = { 'p', 'r', 'o', 'm', 'p', 't', '2', '\0' };
-Char STRpushdsilent[]	= { 'p', 'u', 's', 'h', 'd', 's', 'i', 'l', 'e', 'n',
-			    't', '\0' };
-Char STRret[]		= { '\n', '\0' };
-Char STRsavehist[]      = { 's', 'a', 'v', 'e', 'h', 'i', 's', 't', '\0' };
-Char STRsemisp[]	= { ';', ' ', '\0' };
-Char STRshell[]         = { 's', 'h', 'e', 'l', 'l', '\0' };
-Char STRslash[]		= { '/', '\0' };
-Char STRsldotcshrc[]	= { '/', '.', 'c', 's', 'h', 'r', 'c', '\0' };
-Char STRsldotlogin[]	= { '/', '.', 'l', 'o', 'g', 'i', 'n', '\0' };
-Char STRsldthist[]      = { '/', '.', 'h', 'i', 's', 't', 'o', 'r', 'y', '\0' };
-Char STRsldtlogout[]    = { '/', '.', 'l', 'o', 'g', 'o', 'u', 't', '\0' };
-Char STRsource[]        = { 's', 'o', 'u', 'r', 'c', 'e', '\0' };
-Char STRsp3dots[]	= { ' ', '.', '.', '.', '\0' };
-Char STRspLarrow2sp[]	= { ' ', '<', '<', ' ', '\0' };
-Char STRspLarrowsp[]	= { ' ', '<', ' ', '\0' };
-Char STRspRarrow[]	= { ' ', '>', '\0' };
-Char STRspRarrow2[]	= { ' ', '>', '>', '\0' };
-Char STRRparen[]	= { ')', '\0' };
-Char STRspace[]		= { ' ', '\0' };
-Char STRspand2sp[]	= { ' ', '&', '&', ' ', '\0' };
-Char STRspor2sp[]	= { ' ', '|', '|', ' ', '\0' };
-Char STRsporsp[]	= { ' ', '|', ' ', '\0' };
-Char STRstar[]          = { '*', '\0' };
-Char STRstatus[]        = { 's', 't', 'a', 't', 'u', 's', '\0' };
-Char STRsymcent[]       = { '%', ' ', '\0' };
-Char STRsymhash[]       = { '#', ' ', '\0' };
-Char STRterm[]          = { 't', 'e', 'r', 'm', '\0' };
-Char STRthen[]		= { 't', 'h', 'e', 'n', '\0' };
-Char STRtilde[]		= { '~', '\0' };
-Char STRtime[]		= { 't', 'i', 'm', 'e', '\0' };
-Char STRtmpsh[]         = { '/', 't', 'm', 'p', '/', 's', 'h', '\0' };
-Char STRunalias[]       = { 'u', 'n', 'a', 'l', 'i', 'a', 's', '\0' };
-Char STRuser[]          = { 'u', 's', 'e', 'r', '\0' };
-Char STRverbose[]       = { 'v', 'e', 'r', 'b', 'o', 's', 'e', '\0' };
-Char STRwordchars[]	= { 'w', 'o', 'r', 'd', 'c', 'h', 'a', 'r', 's', '\0' };
@@ -1,551 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)csh.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-/*
- * Fundamental definitions which may vary from system to system.
- *
- *	BUFSIZ		The i/o buffering size; also limits word size
- *	MAILINTVL	How often to mailcheck; more often is more expensive
- */
-#ifndef BUFSIZ
-#define	BUFSIZ	1024		/* default buffer size */
-#endif				/* BUFSIZ */
-
-#define FORKSLEEP	10	/* delay loop on non-interactive fork failure */
-#define	MAILINTVL	600	/* 10 minutes */
-
-/*
- * The shell moves std in/out/diag and the old std input away from units
- * 0, 1, and 2 so that it is easy to set up these standards for invoked
- * commands.
- */
-#define	FSHTTY	15		/* /dev/tty when manip pgrps */
-#define	FSHIN	16		/* Preferred desc for shell input */
-#define	FSHOUT	17		/* ... shell output */
-#define	FSHERR	18		/* ... shell diagnostics */
-#define	FOLDSTD	19		/* ... old std input */
-
-#ifdef PROF
-#define	xexit(n)	done(n)
-#endif
-
-#ifdef SHORT_STRINGS
-typedef short Char;
-
-#define SAVE(a) (Strsave(str2short(a)))
-#else
-typedef char Char;
-
-#define SAVE(a) (strsave(a))
-#endif
-
-/*
- * Make sure a variable is not stored in a register by taking its address
- * This is used where variables might be clobbered by longjmp.
- */
-#define UNREGISTER(a)	(void) &a
-
-typedef void *ioctl_t;		/* Third arg of ioctl */
-
-typedef void *ptr_t;
-
-#include "const.h"
-#include "char.h"
-#include "errnum.h"
-
-#define xmalloc(i)	Malloc(i)
-#define xrealloc(p, i)	Realloc(p, i)
-#define xcalloc(n, s)	Calloc(n, s)
-#define xfree(p)	Free(p)
-
-#include <stdio.h>
-FILE *cshin, *cshout, *csherr;
-
-#define	isdir(d)	((d.st_mode & S_IFMT) == S_IFDIR)
-
-typedef int bool;
-
-#define	eq(a, b)	(Strcmp(a, b) == 0)
-
-/* globone() flags */
-#define G_ERROR		0	/* default action: error if multiple words */
-#define G_IGNORE	1	/* ignore the rest of the words */
-#define G_APPEND	2	/* make a sentence by cat'ing the words */
-
-/*
- * Global flags
- */
-bool    chkstop;		/* Warned of stopped jobs... allow exit */
-bool    didfds;			/* Have setup i/o fd's for child */
-bool    doneinp;		/* EOF indicator after reset from readc */
-bool    exiterr;		/* Exit if error or non-zero exit status */
-bool    child;			/* Child shell ... errors cause exit */
-bool    haderr;			/* Reset was because of an error */
-bool    intty;			/* Input is a tty */
-bool    intact;			/* We are interactive... therefore prompt */
-bool    justpr;			/* Just print because of :p hist mod */
-bool    loginsh;		/* We are a loginsh -> .login/.logout */
-bool    neednote;		/* Need to pnotify() */
-bool    noexec;			/* Don't execute, just syntax check */
-bool    pjobs;			/* want to print jobs if interrupted */
-bool    setintr;		/* Set interrupts on/off -> Wait intr... */
-bool    timflg;			/* Time the next waited for command */
-bool    havhash;		/* path hashing is available */
-
-#ifdef FILEC
-bool    filec;			/* doing filename expansion */
-#endif
-
-/*
- * Global i/o info
- */
-Char   *arginp;			/* Argument input for sh -c and internal `xx` */
-int     onelflg;		/* 2 -> need line for -t, 1 -> exit on read */
-Char   *ffile;			/* Name of shell file for $0 */
-
-char   *seterr;			/* Error message from scanner/parser */
-Char   *shtemp;			/* Temp name for << shell files in /tmp */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-
-struct timeval time0;		/* Time at which the shell started */
-struct rusage ru0;
-
-/*
- * Miscellany
- */
-Char   *doldol;			/* Character pid for $$ */
-int	backpid;		/* Pid of the last background process */
-int     uid, euid;		/* Invokers uid */
-int     gid, egid;		/* Invokers gid */
-time_t  chktim;			/* Time mail last checked */
-int     shpgrp;			/* Pgrp of shell */
-int     tpgrp;			/* Terminal process group */
-
-/* If tpgrp is -1, leave tty alone! */
-int     opgrp;			/* Initial pgrp and tty pgrp */
-
-
-/*
- * To be able to redirect i/o for builtins easily, the shell moves the i/o
- * descriptors it uses away from 0,1,2.
- * Ideally these should be in units which are closed across exec's
- * (this saves work) but for version 6, this is not usually possible.
- * The desired initial values for these descriptors are F{SHIN,...}.
- */
-int   SHIN;			/* Current shell input (script) */
-int   SHOUT;			/* Shell output */
-int   SHERR;			/* Diagnostic output... shell errs go here */
-int   OLDSTD;			/* Old standard input (def for cmds) */
-
-/*
- * Error control
- *
- * Errors in scanning and parsing set up an error message to be printed
- * at the end and complete.  Other errors always cause a reset.
- * Because of source commands and .cshrc we need nested error catches.
- */
-
-#include <setjmp.h>
-jmp_buf reslab;
-
-#define	setexit()	(setjmp(reslab))
-#define	reset()		longjmp(reslab, 1)
- /* Should use structure assignment here */
-#define	getexit(a)	memmove((char *)(a), (char *)reslab, sizeof reslab)
-#define	resexit(a)	memmove((char *)reslab, (char *)(a), sizeof reslab)
-
-Char   *gointr;			/* Label for an onintr transfer */
-
-#include <signal.h>
-sig_t parintr;			/* Parents interrupt catch */
-sig_t parterm;			/* Parents terminate catch */
-
-/*
- * Lexical definitions.
- *
- * All lexical space is allocated dynamically.
- * The eighth/sixteenth bit of characters is used to prevent recognition,
- * and eventually stripped.
- */
-#define	META		0200
-#define	ASCII		0177
-#ifdef SHORT_STRINGS
-#define	CHAR		0377
-#define	QUOTE 		0100000	/* 16nth char bit used for 'ing */
-#define	TRIM		0077777	/* Mask to strip quote bit */
-#else
-#define	CHAR		0177
-#define	QUOTE 		0200	/* Eighth char bit used for 'ing */
-#define	TRIM		0177	/* Mask to strip quote bit */
-#endif
-
-int     AsciiOnly;		/* If set only 7 bits is expected in characters */
-
-/*
- * Each level of input has a buffered input structure.
- * There are one or more blocks of buffered input for each level,
- * exactly one if the input is seekable and tell is available.
- * In other cases, the shell buffers enough blocks to keep all loops
- * in the buffer.
- */
-struct Bin {
-    off_t   Bfseekp;		/* Seek pointer */
-    off_t   Bfbobp;		/* Seekp of beginning of buffers */
-    off_t   Bfeobp;		/* Seekp of end of buffers */
-    int     Bfblocks;		/* Number of buffer blocks */
-    Char  **Bfbuf;		/* The array of buffer blocks */
-}       B;
-
-/*
- * This structure allows us to seek inside aliases
- */
-struct Ain {
-    int type;
-#define I_SEEK -1		/* Invalid seek */
-#define A_SEEK	0		/* Alias seek */
-#define F_SEEK	1		/* File seek */
-#define E_SEEK	2		/* Eval seek */
-    union {
-	off_t _f_seek;
-	Char* _c_seek;
-    } fc;
-#define f_seek fc._f_seek
-#define c_seek fc._c_seek
-    Char **a_seek;
-} ;
-extern int aret;		/* What was the last character returned */
-#define SEEKEQ(a, b) ((a)->type == (b)->type && \
-		      (a)->f_seek == (b)->f_seek && \
-		      (a)->a_seek == (b)->a_seek)
-
-#define	fseekp	B.Bfseekp
-#define	fbobp	B.Bfbobp
-#define	feobp	B.Bfeobp
-#define	fblocks	B.Bfblocks
-#define	fbuf	B.Bfbuf
-
-/*
- * The shell finds commands in loops by reseeking the input
- * For whiles, in particular, it reseeks to the beginning of the
- * line the while was on; hence the while placement restrictions.
- */
-struct Ain lineloc;
-
-bool    cantell;		/* Is current source tellable ? */
-
-/*
- * Input lines are parsed into doubly linked circular
- * lists of words of the following form.
- */
-struct wordent {
-    Char   *word;
-    struct wordent *prev;
-    struct wordent *next;
-};
-
-/*
- * During word building, both in the initial lexical phase and
- * when expanding $ variable substitutions, expansion by `!' and `$'
- * must be inhibited when reading ahead in routines which are themselves
- * processing `!' and `$' expansion or after characters such as `\' or in
- * quotations.  The following flags are passed to the getC routines
- * telling them which of these substitutions are appropriate for the
- * next character to be returned.
- */
-#define	DODOL	1
-#define	DOEXCL	2
-#define	DOALL	DODOL|DOEXCL
-
-/*
- * Labuf implements a general buffer for lookahead during lexical operations.
- * Text which is to be placed in the input stream can be stuck here.
- * We stick parsed ahead $ constructs during initial input,
- * process id's from `$$', and modified variable values (from qualifiers
- * during expansion in sh.dol.c) here.
- */
-Char   *lap;
-
-/*
- * Parser structure
- *
- * Each command is parsed to a tree of command structures and
- * flags are set bottom up during this process, to be propagated down
- * as needed during the semantics/execution pass (sh.sem.c).
- */
-struct command {
-    short   t_dtyp;		/* Type of node 		 */
-#define	NODE_COMMAND	1	/* t_dcom <t_dlef >t_drit	 */
-#define	NODE_PAREN	2	/* ( t_dspr ) <t_dlef >t_drit	 */
-#define	NODE_PIPE	3	/* t_dlef | t_drit		 */
-#define	NODE_LIST	4	/* t_dlef ; t_drit		 */
-#define	NODE_OR		5	/* t_dlef || t_drit		 */
-#define	NODE_AND	6	/* t_dlef && t_drit		 */
-    short   t_dflg;		/* Flags, e.g. F_AMPERSAND|... 	 */
-#define	F_SAVE	(F_NICE|F_TIME|F_NOHUP)	/* save these when re-doing 	 */
-
-#define	F_AMPERSAND	(1<<0)	/* executes in background	 */
-#define	F_APPEND	(1<<1)	/* output is redirected >>	 */
-#define	F_PIPEIN	(1<<2)	/* input is a pipe		 */
-#define	F_PIPEOUT	(1<<3)	/* output is a pipe		 */
-#define	F_NOFORK	(1<<4)	/* don't fork, last ()ized cmd	 */
-#define	F_NOINTERRUPT	(1<<5)	/* should be immune from intr's */
-/* spare */
-#define	F_STDERR	(1<<7)	/* redirect unit 2 with unit 1	 */
-#define	F_OVERWRITE	(1<<8)	/* output was !			 */
-#define	F_READ		(1<<9)	/* input redirection is <<	 */
-#define	F_REPEAT	(1<<10)	/* reexec aft if, repeat,...	 */
-#define	F_NICE		(1<<11)	/* t_nice is meaningful 	 */
-#define	F_NOHUP		(1<<12)	/* nohup this command 		 */
-#define	F_TIME		(1<<13)	/* time this command 		 */
-    union {
-	Char   *T_dlef;		/* Input redirect word 		 */
-	struct command *T_dcar;	/* Left part of list/pipe 	 */
-    }       L;
-    union {
-	Char   *T_drit;		/* Output redirect word 	 */
-	struct command *T_dcdr;	/* Right part of list/pipe 	 */
-    }       R;
-#define	t_dlef	L.T_dlef
-#define	t_dcar	L.T_dcar
-#define	t_drit	R.T_drit
-#define	t_dcdr	R.T_dcdr
-    Char  **t_dcom;		/* Command/argument vector 	 */
-    struct command *t_dspr;	/* Pointer to ()'d subtree 	 */
-    int   t_nice;
-};
-
-
-/*
- * These are declared here because they want to be
- * initialized in sh.init.c (to allow them to be made readonly)
- */
-
-extern struct biltins {
-    char   *bname;
-    void    (*bfunct) __P((Char **, struct command *));
-    short   minargs, maxargs;
-}       bfunc[];
-extern int nbfunc;
-
-extern struct srch {
-    char   *s_name;
-    short   s_value;
-}       srchn[];
-extern int nsrchn;
-
-/*
- * The keywords for the parser
- */
-#define	T_BREAK		0
-#define	T_BRKSW		1
-#define	T_CASE		2
-#define	T_DEFAULT 	3
-#define	T_ELSE		4
-#define	T_END		5
-#define	T_ENDIF		6
-#define	T_ENDSW		7
-#define	T_EXIT		8
-#define	T_FOREACH	9
-#define	T_GOTO		10
-#define	T_IF		11
-#define	T_LABEL		12
-#define	T_LET		13
-#define	T_SET		14
-#define	T_SWITCH	15
-#define	T_TEST		16
-#define	T_THEN		17
-#define	T_WHILE		18
-
-/*
- * Structure defining the existing while/foreach loops at this
- * source level.  Loops are implemented by seeking back in the
- * input.  For foreach (fe), the word list is attached here.
- */
-struct whyle {
-    struct Ain   w_start;	/* Point to restart loop */
-    struct Ain   w_end;		/* End of loop (0 if unknown) */
-    Char  **w_fe, **w_fe0;	/* Current/initial wordlist for fe */
-    Char   *w_fename;		/* Name for fe */
-    struct whyle *w_next;	/* Next (more outer) loop */
-}      *whyles;
-
-/*
- * Variable structure
- *
- * Aliases and variables are stored in AVL balanced binary trees.
- */
-struct varent {
-    Char  **vec;		/* Array of words which is the value */
-    Char   *v_name;		/* Name of variable/alias */
-    struct varent *v_link[3];	/* The links, see below */
-    int     v_bal;		/* Balance factor */
-}       shvhed, aliases;
-
-#define v_left		v_link[0]
-#define v_right		v_link[1]
-#define v_parent	v_link[2]
-
-#define adrof(v)	adrof1(v, &shvhed)
-#define value(v)	value1(v, &shvhed)
-
-/*
- * The following are for interfacing redo substitution in
- * aliases to the lexical routines.
- */
-struct wordent *alhistp;	/* Argument list (first) */
-struct wordent *alhistt;	/* Node after last in arg list */
-Char  **alvec, *alvecp;		/* The (remnants of) alias vector */
-
-/*
- * Filename/command name expansion variables
- */
-int   gflag;			/* After tglob -> is globbing needed? */
-
-#define MAXVARLEN 30		/* Maximum number of char in a variable name */
-
-/*
- * Variables for filename expansion
- */
-extern Char **gargv;		/* Pointer to the (stack) arglist */
-extern long gargc;		/* Number args in gargv */
-
-/*
- * Variables for command expansion.
- */
-extern Char **pargv;		/* Pointer to the argv list space */
-extern long pargc;		/* Count of arguments in pargv */
-Char   *pargs;			/* Pointer to start current word */
-long    pnleft;			/* Number of chars left in pargs */
-Char   *pargcp;			/* Current index into pargs */
-
-/*
- * History list
- *
- * Each history list entry contains an embedded wordlist
- * from the scanner, a number for the event, and a reference count
- * to aid in discarding old entries.
- *
- * Essentially "invisible" entries are put on the history list
- * when history substitution includes modifiers, and thrown away
- * at the next discarding since their event numbers are very negative.
- */
-struct Hist {
-    struct wordent Hlex;
-    int     Hnum;
-    int     Href;
-    struct Hist *Hnext;
-}       Histlist;
-
-struct wordent paraml;		/* Current lexical word list */
-int     eventno;		/* Next events number */
-int     lastev;			/* Last event reference (default) */
-
-Char    HIST;			/* history invocation character */
-Char    HISTSUB;		/* auto-substitute character */
-
-/*
- * strings.h:
- */
-#ifndef SHORT_STRINGS
-#define Strchr(a, b)		strchr(a, b)
-#define Strrchr(a, b)		strrchr(a, b)
-#define Strcat(a, b)		strcat(a, b)
-#define Strncat(a, b, c) 	strncat(a, b, c)
-#define Strcpy(a, b)		strcpy(a, b)
-#define Strncpy(a, b, c) 	strncpy(a, b, c)
-#define Strlen(a)		strlen(a)
-#define Strcmp(a, b)		strcmp(a, b)
-#define Strncmp(a, b, c)	strncmp(a, b, c)
-
-#define Strspl(a, b)		strspl(a, b)
-#define Strsave(a)		strsave(a)
-#define Strend(a)		strend(a)
-#define Strstr(a, b)		strstr(a, b)
-
-#define str2short(a) 		(a)
-#define blk2short(a) 		saveblk(a)
-#define short2blk(a) 		saveblk(a)
-#define short2str(a) 		strip(a)
-#else
-#define Strchr(a, b)		s_strchr(a, b)
-#define Strrchr(a, b) 		s_strrchr(a, b)
-#define Strcat(a, b)		s_strcat(a, b)
-#define Strncat(a, b, c) 	s_strncat(a, b, c)
-#define Strcpy(a, b)		s_strcpy(a, b)
-#define Strncpy(a, b, c)	s_strncpy(a, b, c)
-#define Strlen(a)		s_strlen(a)
-#define Strcmp(a, b)		s_strcmp(a, b)
-#define Strncmp(a, b, c)	s_strncmp(a, b, c)
-
-#define Strspl(a, b)		s_strspl(a, b)
-#define Strsave(a)		s_strsave(a)
-#define Strend(a)		s_strend(a)
-#define Strstr(a, b)		s_strstr(a, b)
-#endif
-
-/*
- * setname is a macro to save space (see sh.err.c)
- */
-char   *bname;
-
-#define	setname(a)	(bname = (a))
-
-Char   *Vsav;
-Char   *Vdp;
-Char   *Vexpath;
-char  **Vt;
-
-Char  **evalvec;
-Char   *evalp;
-
-/* word_chars is set by default to WORD_CHARS but can be overridden by
-   the wordchars variable--if unset, reverts to WORD_CHARS */
-
-Char   *word_chars;
-
-#define WORD_CHARS "*?_-.[]~="	/* default chars besides alnums in words */
-
-Char   *STR_SHELLPATH;
-
-#include <paths.h>
-#ifdef _PATH_BSHELL
-Char   *STR_BSHELL;
-#endif
-Char   *STR_WORD_CHARS;
-Char  **STR_environ;
@@ -1,933 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)dir.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "dir.h"
-#include "extern.h"
-
-/* Directory management. */
-
-static struct directory
-		*dfind __P((Char *));
-static Char	*dfollow __P((Char *));
-static void	 printdirs __P((void));
-static Char	*dgoto __P((Char *));
-static void	 dnewcwd __P((struct directory *));
-static void	 dset __P((Char *));
-
-struct directory dhead;		/* "head" of loop */
-int     printd;			/* force name to be printed */
-
-static int dirflag = 0;
-
-/*
- * dinit - initialize current working directory
- */
-void
-dinit(hp)
-    Char   *hp;
-{
-    char *tcp;
-    Char *cp;
-    struct directory *dp;
-    char    path[MAXPATHLEN];
-    static char *emsg = "csh: Trying to start from \"%s\"\n";
-
-    /* Don't believe the login shell home, because it may be a symlink */
-    tcp = getcwd(path, MAXPATHLEN);	/* see ngetwd.c for System V version */
-    if (tcp == NULL || *tcp == '\0') {
-	(void) fprintf(csherr, "csh: %s: %s\n", path, strerror(errno));
-	if (hp && *hp) {
-	    tcp = short2str(hp);
-	    if (chdir(tcp) == -1)
-		cp = NULL;
-	    else
-		cp = hp;
-	    (void) fprintf(csherr, emsg, vis_str(hp));
-	}
-	else
-	    cp = NULL;
-	if (cp == NULL) {
-	    (void) fprintf(csherr, emsg, "/");
-	    if (chdir("/") == -1)
-		/* I am not even try to print an error message! */
-		xexit(1);
-	    cp = SAVE("/");
-	}
-    }
-    else {
-	struct stat swd, shp;
-
-	/*
-	 * See if $HOME is the working directory we got and use that
-	 */
-	if (hp && *hp &&
-	    stat(tcp, &swd) != -1 && stat(short2str(hp), &shp) != -1 &&
-	    swd.st_dev == shp.st_dev && swd.st_ino == shp.st_ino)
-	    cp = hp;
-	else {
-	    char   *cwd;
-
-	    /*
-	     * use PWD if we have it (for subshells)
-	     */
-	    if ((cwd = getenv("PWD")) != NULL) {
-		if (stat(cwd, &shp) != -1 && swd.st_dev == shp.st_dev &&
-		    swd.st_ino == shp.st_ino)
-		    tcp = cwd;
-	    }
-	    cp = dcanon(SAVE(tcp), STRNULL);
-	}
-    }
-
-    dp = (struct directory *) xcalloc(sizeof(struct directory), 1);
-    dp->di_name = Strsave(cp);
-    dp->di_count = 0;
-    dhead.di_next = dhead.di_prev = dp;
-    dp->di_next = dp->di_prev = &dhead;
-    printd = 0;
-    dnewcwd(dp);
-}
-
-static void
-dset(dp)
-Char *dp;
-{
-    /*
-     * Don't call set() directly cause if the directory contains ` or
-     * other junk characters glob will fail.
-     */
-    Char **vec = (Char **) xmalloc((size_t) (2 * sizeof(Char **)));
-
-    vec[0] = Strsave(dp);
-    vec[1] = 0;
-    setq(STRcwd, vec, &shvhed);
-    Setenv(STRPWD, dp);
-}
-
-#define DIR_LONG 1
-#define DIR_VERT 2
-#define DIR_LINE 4
-
-static void
-skipargs(v, str)
-    Char ***v;
-    char   *str;
-{
-    Char  **n = *v, *s;
-
-    dirflag = 0;
-    for (n++; *n != NULL && (*n)[0] == '-'; n++)
-	for (s = &((*n)[1]); *s; s++)
-	    switch (*s) {
-	    case 'l':
-		dirflag |= DIR_LONG;
-		break;
-	    case 'v':
-		dirflag |= DIR_VERT;
-		break;
-	    case 'n':
-		dirflag |= DIR_LINE;
-		break;
-	    default:
-		stderror(ERR_DIRUS, vis_str(**v), str);
-		break;
-	    }
-    *v = n;
-}
-
-/*
- * dodirs - list all directories in directory loop
- */
-void
-/*ARGSUSED*/
-dodirs(v, t)
-    Char **v;
-    struct command *t;
-{
-    skipargs(&v, "");
-
-    if (*v != NULL)
-	stderror(ERR_DIRUS, "dirs", "");
-    printdirs();
-}
-
-static void
-printdirs()
-{
-    struct directory *dp;
-    Char   *s, *hp = value(STRhome);
-    int     idx, len, cur;
-
-    if (*hp == '\0')
-	hp = NULL;
-    dp = dcwd;
-    idx = 0;
-    cur = 0;
-    do {
-	if (dp == &dhead)
-	    continue;
-	if (dirflag & DIR_VERT) {
-	    (void) fprintf(cshout, "%d\t", idx++);
-	    cur = 0;
-	}
-	if (!(dirflag & DIR_LONG) && hp != NULL && !eq(hp, STRslash) &&
-	    (len = Strlen(hp), Strncmp(hp, dp->di_name, len) == 0) &&
-	    (dp->di_name[len] == '\0' || dp->di_name[len] == '/'))
-	    len = Strlen(s = (dp->di_name + len)) + 2;
-	else
-	    len = Strlen(s = dp->di_name) + 1;
-
-	cur += len;
-	if ((dirflag & DIR_LINE) && cur >= 80 - 1 && len < 80) {
-	    (void) fprintf(cshout, "\n");
-	    cur = len;
-	}
-	(void) fprintf(cshout, s != dp->di_name ? "~%s%c" : "%s%c",
-		vis_str(s), (dirflag & DIR_VERT) ? '\n' : ' ');
-    } while ((dp = dp->di_prev) != dcwd);
-    if (!(dirflag & DIR_VERT))
-	(void) fprintf(cshout, "\n");
-}
-
-void
-dtildepr(home, dir)
-    Char *home, *dir;
-{
-
-    if (!eq(home, STRslash) && prefix(home, dir))
-	(void) fprintf(cshout, "~%s", vis_str(dir + Strlen(home)));
-    else
-	(void) fprintf(cshout, "%s", vis_str(dir));
-}
-
-void
-dtilde()
-{
-    struct directory *d = dcwd;
-
-    do {
-	if (d == &dhead)
-	    continue;
-	d->di_name = dcanon(d->di_name, STRNULL);
-    } while ((d = d->di_prev) != dcwd);
-
-    dset(dcwd->di_name);
-}
-
-
-/* dnormalize():
- *	If the name starts with . or .. then we might need to normalize
- *	it depending on the symbolic link flags
- */
-Char   *
-dnormalize(cp)
-    Char   *cp;
-{
-
-#define UC (unsigned char)
-#define ISDOT(c) (UC(c)[0] == '.' && ((UC(c)[1] == '\0') || (UC(c)[1] == '/')))
-#define ISDOTDOT(c) (UC(c)[0] == '.' && ISDOT(&((c)[1])))
-
-    if ((unsigned char) cp[0] == '/')
-	return (Strsave(cp));
-
-    if (adrof(STRignore_symlinks)) {
-	int     dotdot = 0;
-	Char   *dp, *cwd;
-
-	cwd = (Char *) xmalloc((size_t) ((Strlen(dcwd->di_name) + 3) *
-					 sizeof(Char)));
-	(void) Strcpy(cwd, dcwd->di_name);
-
-	/*
-	 * Ignore . and count ..'s
-	 */
-	while (*cp) {
-	    if (ISDOT(cp)) {
-		if (*++cp)
-		    cp++;
-	    }
-	    else if (ISDOTDOT(cp)) {
-		dotdot++;
-		cp += 2;
-		if (*cp)
-		    cp++;
-	    }
-	    else
-		break;
-	}
-	while (dotdot > 0)
-	    if ((dp = Strrchr(cwd, '/'))) {
-		*dp = '\0';
-		dotdot--;
-	    }
-	    else
-		break;
-
-	if (*cp) {
-	    cwd[dotdot = Strlen(cwd)] = '/';
-	    cwd[dotdot + 1] = '\0';
-	    dp = Strspl(cwd, cp);
-	    xfree((ptr_t) cwd);
-	    return dp;
-	}
-	else {
-	    if (!*cwd) {
-		cwd[0] = '/';
-		cwd[1] = '\0';
-	    }
-	    return cwd;
-	}
-    }
-    return Strsave(cp);
-}
-
-/*
- * dochngd - implement chdir command.
- */
-void
-/*ARGSUSED*/
-dochngd(v, t)
-    Char **v;
-    struct command *t;
-{
-    Char *cp;
-    struct directory *dp;
-
-    skipargs(&v, " [<dir>]");
-    printd = 0;
-    if (*v == NULL) {
-	if ((cp = value(STRhome)) == NULL || *cp == 0)
-	    stderror(ERR_NAME | ERR_NOHOMEDIR);
-	if (chdir(short2str(cp)) < 0)
-	    stderror(ERR_NAME | ERR_CANTCHANGE);
-	cp = Strsave(cp);
-    }
-    else if (v[1] != NULL) {
-	stderror(ERR_NAME | ERR_TOOMANY);
-	/* NOTREACHED */
-	return;
-    }
-    else if ((dp = dfind(*v)) != 0) {
-	char   *tmp;
-
-	printd = 1;
-	if (chdir(tmp = short2str(dp->di_name)) < 0)
-	    stderror(ERR_SYSTEM, tmp, strerror(errno));
-	dcwd->di_prev->di_next = dcwd->di_next;
-	dcwd->di_next->di_prev = dcwd->di_prev;
-	dfree(dcwd);
-	dnewcwd(dp);
-	return;
-    }
-    else
-	cp = dfollow(*v);
-    dp = (struct directory *) xcalloc(sizeof(struct directory), 1);
-    dp->di_name = cp;
-    dp->di_count = 0;
-    dp->di_next = dcwd->di_next;
-    dp->di_prev = dcwd->di_prev;
-    dp->di_prev->di_next = dp;
-    dp->di_next->di_prev = dp;
-    dfree(dcwd);
-    dnewcwd(dp);
-}
-
-static Char *
-dgoto(cp)
-    Char   *cp;
-{
-    Char   *dp;
-
-    if (*cp != '/') {
-	Char *p, *q;
-	int     cwdlen;
-
-	for (p = dcwd->di_name; *p++;)
-	    continue;
-	if ((cwdlen = p - dcwd->di_name - 1) == 1)	/* root */
-	    cwdlen = 0;
-	for (p = cp; *p++;)
-	    continue;
-	dp = (Char *) xmalloc((size_t)((cwdlen + (p - cp) + 1) * sizeof(Char)));
-	for (p = dp, q = dcwd->di_name; (*p++ = *q++) != '\0';)
-	    continue;
-	if (cwdlen)
-	    p[-1] = '/';
-	else
-	    p--;		/* don't add a / after root */
-	for (q = cp; (*p++ = *q++) != '\0';)
-	    continue;
-	xfree((ptr_t) cp);
-	cp = dp;
-	dp += cwdlen;
-    }
-    else
-	dp = cp;
-
-    cp = dcanon(cp, dp);
-    return cp;
-}
-
-/*
- * dfollow - change to arg directory; fall back on cdpath if not valid
- */
-static Char *
-dfollow(cp)
-    Char *cp;
-{
-    Char *dp;
-    struct varent *c;
-    char    ebuf[MAXPATHLEN];
-    int serrno;
-
-    cp = globone(cp, G_ERROR);
-    /*
-     * if we are ignoring symlinks, try to fix relatives now.
-     */
-    dp = dnormalize(cp);
-    if (chdir(short2str(dp)) >= 0) {
-	xfree((ptr_t) cp);
-	return dgoto(dp);
-    }
-    else {
-	xfree((ptr_t) dp);
-	if (chdir(short2str(cp)) >= 0)
-	    return dgoto(cp);
-	serrno = errno;
-    }
-
-    if (cp[0] != '/' && !prefix(STRdotsl, cp) && !prefix(STRdotdotsl, cp)
-	&& (c = adrof(STRcdpath))) {
-	Char  **cdp;
-	Char *p;
-	Char    buf[MAXPATHLEN];
-
-	for (cdp = c->vec; *cdp; cdp++) {
-	    for (dp = buf, p = *cdp; (*dp++ = *p++) != '\0';)
-		continue;
-	    dp[-1] = '/';
-	    for (p = cp; (*dp++ = *p++) != '\0';)
-		continue;
-	    if (chdir(short2str(buf)) >= 0) {
-		printd = 1;
-		xfree((ptr_t) cp);
-		cp = Strsave(buf);
-		return dgoto(cp);
-	    }
-	}
-    }
-    dp = value(cp);
-    if ((dp[0] == '/' || dp[0] == '.') && chdir(short2str(dp)) >= 0) {
-	xfree((ptr_t) cp);
-	cp = Strsave(dp);
-	printd = 1;
-	return dgoto(cp);
-    }
-    (void) strcpy(ebuf, short2str(cp));
-    xfree((ptr_t) cp);
-    stderror(ERR_SYSTEM, ebuf, strerror(serrno));
-    return (NULL);
-}
-
-
-/*
- * dopushd - push new directory onto directory stack.
- *	with no arguments exchange top and second.
- *	with numeric argument (+n) bring it to top.
- */
-void
-/*ARGSUSED*/
-dopushd(v, t)
-    Char **v;
-    struct command *t;
-{
-    struct directory *dp;
-
-    skipargs(&v, " [<dir>|+<n>]");
-    printd = 1;
-    if (*v == NULL) {
-	char   *tmp;
-
-	if ((dp = dcwd->di_prev) == &dhead)
-	    dp = dhead.di_prev;
-	if (dp == dcwd)
-	    stderror(ERR_NAME | ERR_NODIR);
-	if (chdir(tmp = short2str(dp->di_name)) < 0)
-	    stderror(ERR_SYSTEM, tmp, strerror(errno));
-	dp->di_prev->di_next = dp->di_next;
-	dp->di_next->di_prev = dp->di_prev;
-	dp->di_next = dcwd->di_next;
-	dp->di_prev = dcwd;
-	dcwd->di_next->di_prev = dp;
-	dcwd->di_next = dp;
-    }
-    else if (v[1] != NULL) {
-	stderror(ERR_NAME | ERR_TOOMANY);
-	/* NOTREACHED */
-	return;
-    }
-    else if ((dp = dfind(*v)) != NULL) {
-	char   *tmp;
-
-	if (chdir(tmp = short2str(dp->di_name)) < 0)
-	    stderror(ERR_SYSTEM, tmp, strerror(errno));
-    }
-    else {
-	Char *ccp;
-
-	ccp = dfollow(*v);
-	dp = (struct directory *) xcalloc(sizeof(struct directory), 1);
-	dp->di_name = ccp;
-	dp->di_count = 0;
-	dp->di_prev = dcwd;
-	dp->di_next = dcwd->di_next;
-	dcwd->di_next = dp;
-	dp->di_next->di_prev = dp;
-    }
-    dnewcwd(dp);
-}
-
-/*
- * dfind - find a directory if specified by numeric (+n) argument
- */
-static struct directory *
-dfind(cp)
-    Char *cp;
-{
-    struct directory *dp;
-    int i;
-    Char *ep;
-
-    if (*cp++ != '+')
-	return (0);
-    for (ep = cp; Isdigit(*ep); ep++)
-	continue;
-    if (*ep)
-	return (0);
-    i = getn(cp);
-    if (i <= 0)
-	return (0);
-    for (dp = dcwd; i != 0; i--) {
-	if ((dp = dp->di_prev) == &dhead)
-	    dp = dp->di_prev;
-	if (dp == dcwd)
-	    stderror(ERR_NAME | ERR_DEEP);
-    }
-    return (dp);
-}
-
-/*
- * dopopd - pop a directory out of the directory stack
- *	with a numeric argument just discard it.
- */
-void
-/*ARGSUSED*/
-dopopd(v, t)
-    Char **v;
-    struct command *t;
-{
-    struct directory *dp, *p = NULL;
-
-    skipargs(&v, " [+<n>]");
-    printd = 1;
-    if (*v == NULL)
-	dp = dcwd;
-    else if (v[1] != NULL) {
-	stderror(ERR_NAME | ERR_TOOMANY);
-	/* NOTREACHED */
-	return;
-    }
-    else if ((dp = dfind(*v)) == 0)
-	stderror(ERR_NAME | ERR_BADDIR);
-    if (dp->di_prev == &dhead && dp->di_next == &dhead)
-	stderror(ERR_NAME | ERR_EMPTY);
-    if (dp == dcwd) {
-	char   *tmp;
-
-	if ((p = dp->di_prev) == &dhead)
-	    p = dhead.di_prev;
-	if (chdir(tmp = short2str(p->di_name)) < 0)
-	    stderror(ERR_SYSTEM, tmp, strerror(errno));
-    }
-    dp->di_prev->di_next = dp->di_next;
-    dp->di_next->di_prev = dp->di_prev;
-    if (dp == dcwd)
-	dnewcwd(p);
-    else {
-	printdirs();
-    }
-    dfree(dp);
-}
-
-/*
- * dfree - free the directory (or keep it if it still has ref count)
- */
-void
-dfree(dp)
-    struct directory *dp;
-{
-
-    if (dp->di_count != 0) {
-	dp->di_next = dp->di_prev = 0;
-    }
-    else {
-	xfree((char *) dp->di_name);
-	xfree((ptr_t) dp);
-    }
-}
-
-/*
- * dcanon - canonicalize the pathname, removing excess ./ and ../ etc.
- *	we are of course assuming that the file system is standardly
- *	constructed (always have ..'s, directories have links)
- */
-Char   *
-dcanon(cp, p)
-    Char *cp, *p;
-{
-    Char *sp;
-    Char *p1, *p2;	/* general purpose */
-    bool    slash;
-
-    Char    link[MAXPATHLEN];
-    char    tlink[MAXPATHLEN];
-    int     cc;
-    Char   *newcp;
-
-    /*
-     * christos: if the path given does not start with a slash prepend cwd. If
-     * cwd does not start with a path or the result would be too long abort().
-     */
-    if (*cp != '/') {
-	Char    tmpdir[MAXPATHLEN];
-
-	p1 = value(STRcwd);
-	if (p1 == NULL || *p1 != '/')
-	    abort();
-	if (Strlen(p1) + Strlen(cp) + 1 >= MAXPATHLEN)
-	    abort();
-	(void) Strcpy(tmpdir, p1);
-	(void) Strcat(tmpdir, STRslash);
-	(void) Strcat(tmpdir, cp);
-	xfree((ptr_t) cp);
-	cp = p = Strsave(tmpdir);
-    }
-
-    while (*p) {		/* for each component */
-	sp = p;			/* save slash address */
-	while (*++p == '/')	/* flush extra slashes */
-	    continue;
-	if (p != ++sp)
-	    for (p1 = sp, p2 = p; (*p1++ = *p2++) != '\0';)
-		continue;
-	p = sp;			/* save start of component */
-	slash = 0;
-	while (*++p)		/* find next slash or end of path */
-	    if (*p == '/') {
-		slash = 1;
-		*p = 0;
-		break;
-	    }
-
-	if (*sp == '\0')	/* if component is null */
-	    if (--sp == cp)	/* if path is one char (i.e. /) */
-		break;
-	    else
-		*sp = '\0';
-	else if (sp[0] == '.' && sp[1] == 0) {
-	    if (slash) {
-		for (p1 = sp, p2 = p + 1; (*p1++ = *p2++) != '\0';)
-		    continue;
-		p = --sp;
-	    }
-	    else if (--sp != cp)
-		*sp = '\0';
-	}
-	else if (sp[0] == '.' && sp[1] == '.' && sp[2] == 0) {
-	    /*
-	     * We have something like "yyy/xxx/..", where "yyy" can be null or
-	     * a path starting at /, and "xxx" is a single component. Before
-	     * compressing "xxx/..", we want to expand "yyy/xxx", if it is a
-	     * symbolic link.
-	     */
-	    *--sp = 0;		/* form the pathname for readlink */
-	    if (sp != cp && !adrof(STRignore_symlinks) &&
-		(cc = readlink(short2str(cp), tlink, sizeof(tlink) - 1)) >= 0) {
-		(void) Strcpy(link, str2short(tlink));
-		link[cc] = '\0';
-
-		if (slash)
-		    *p = '/';
-		/*
-		 * Point p to the '/' in "/..", and restore the '/'.
-		 */
-		*(p = sp) = '/';
-		/*
-		 * find length of p
-		 */
-		for (p1 = p; *p1++;)
-		    continue;
-		if (*link != '/') {
-		    /*
-		     * Relative path, expand it between the "yyy/" and the
-		     * "/..". First, back sp up to the character past "yyy/".
-		     */
-		    while (*--sp != '/')
-			continue;
-		    sp++;
-		    *sp = 0;
-		    /*
-		     * New length is "yyy/" + link + "/.." and rest
-		     */
-		    p1 = newcp = (Char *) xmalloc((size_t)
-						(((sp - cp) + cc + (p1 - p)) *
-						 sizeof(Char)));
-		    /*
-		     * Copy new path into newcp
-		     */
-		    for (p2 = cp; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = link; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = p; (*p1++ = *p2++) != '\0';)
-			continue;
-		    /*
-		     * Restart canonicalization at expanded "/xxx".
-		     */
-		    p = sp - cp - 1 + newcp;
-		}
-		else {
-		    /*
-		     * New length is link + "/.." and rest
-		     */
-		    p1 = newcp = (Char *) xmalloc((size_t)
-					    ((cc + (p1 - p)) * sizeof(Char)));
-		    /*
-		     * Copy new path into newcp
-		     */
-		    for (p2 = link; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = p; (*p1++ = *p2++) != '\0';)
-			continue;
-		    /*
-		     * Restart canonicalization at beginning
-		     */
-		    p = newcp;
-		}
-		xfree((ptr_t) cp);
-		cp = newcp;
-		continue;	/* canonicalize the link */
-	    }
-	    *sp = '/';
-	    if (sp != cp)
-		while (*--sp != '/')
-		    continue;
-	    if (slash) {
-		for (p1 = sp + 1, p2 = p + 1; (*p1++ = *p2++) != '\0';)
-		    continue;
-		p = sp;
-	    }
-	    else if (cp == sp)
-		*++sp = '\0';
-	    else
-		*sp = '\0';
-	}
-	else {			/* normal dir name (not . or .. or nothing) */
-
-	    if (sp != cp && adrof(STRchase_symlinks) &&
-		!adrof(STRignore_symlinks) &&
-		(cc = readlink(short2str(cp), tlink, sizeof(tlink) - 1)) >= 0) {
-		(void) Strcpy(link, str2short(tlink));
-		link[cc] = '\0';
-
-		/*
-		 * restore the '/'.
-		 */
-		if (slash)
-		    *p = '/';
-
-		/*
-		 * point sp to p (rather than backing up).
-		 */
-		sp = p;
-
-		/*
-		 * find length of p
-		 */
-		for (p1 = p; *p1++;)
-		    continue;
-		if (*link != '/') {
-		    /*
-		     * Relative path, expand it between the "yyy/" and the
-		     * remainder. First, back sp up to the character past
-		     * "yyy/".
-		     */
-		    while (*--sp != '/')
-			continue;
-		    sp++;
-		    *sp = 0;
-		    /*
-		     * New length is "yyy/" + link + "/.." and rest
-		     */
-		    p1 = newcp = (Char *) xmalloc((size_t)
-						  (((sp - cp) + cc + (p1 - p))
-						   * sizeof(Char)));
-		    /*
-		     * Copy new path into newcp
-		     */
-		    for (p2 = cp; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = link; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = p; (*p1++ = *p2++) != '\0';)
-			continue;
-		    /*
-		     * Restart canonicalization at expanded "/xxx".
-		     */
-		    p = sp - cp - 1 + newcp;
-		}
-		else {
-		    /*
-		     * New length is link + the rest
-		     */
-		    p1 = newcp = (Char *) xmalloc((size_t)
-					    ((cc + (p1 - p)) * sizeof(Char)));
-		    /*
-		     * Copy new path into newcp
-		     */
-		    for (p2 = link; (*p1++ = *p2++) != '\0';)
-			continue;
-		    for (p1--, p2 = p; (*p1++ = *p2++) != '\0';)
-			continue;
-		    /*
-		     * Restart canonicalization at beginning
-		     */
-		    p = newcp;
-		}
-		xfree((ptr_t) cp);
-		cp = newcp;
-		continue;	/* canonicalize the link */
-	    }
-	    if (slash)
-		*p = '/';
-	}
-    }
-
-    /*
-     * fix home...
-     */
-    p1 = value(STRhome);
-    cc = Strlen(p1);
-    /*
-     * See if we're not in a subdir of STRhome
-     */
-    if (p1 && *p1 == '/' &&
-	(Strncmp(p1, cp, cc) != 0 || (cp[cc] != '/' && cp[cc] != '\0'))) {
-	static ino_t home_ino = -1;
-	static dev_t home_dev = -1;
-	static Char *home_ptr = NULL;
-	struct stat statbuf;
-
-	/*
-	 * Get dev and ino of STRhome
-	 */
-	if (home_ptr != p1 &&
-	    stat(short2str(p1), &statbuf) != -1) {
-	    home_dev = statbuf.st_dev;
-	    home_ino = statbuf.st_ino;
-	    home_ptr = p1;
-	}
-	/*
-	 * Start comparing dev & ino backwards
-	 */
-	p2 = Strcpy(link, cp);
-	for (sp = NULL; *p2 && stat(short2str(p2), &statbuf) != -1;) {
-	    if (statbuf.st_dev == home_dev &&
-		statbuf.st_ino == home_ino) {
-		sp = (Char *) - 1;
-		break;
-	    }
-	    if ((sp = Strrchr(p2, '/')) != NULL)
-		*sp = '\0';
-	}
-	/*
-	 * See if we found it
-	 */
-	if (*p2 && sp == (Char *) -1) {
-	    /*
-	     * Use STRhome to make '~' work
-	     */
-	    newcp = Strspl(p1, cp + Strlen(p2));
-	    xfree((ptr_t) cp);
-	    cp = newcp;
-	}
-    }
-    return cp;
-}
-
-
-/*
- * dnewcwd - make a new directory in the loop the current one
- */
-static void
-dnewcwd(dp)
-    struct directory *dp;
-{
-    dcwd = dp;
-    dset(dcwd->di_name);
-    if (printd && !(adrof(STRpushdsilent)))
-	printdirs();
-}
@@ -1,46 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)dir.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-/*
- * Structure for entries in directory stack.
- */
-struct directory {
-    struct directory *di_next;	/* next in loop */
-    struct directory *di_prev;	/* prev in loop */
-    unsigned short *di_count;	/* refcount of processes */
-    Char   *di_name;		/* actual name */
-};
-struct directory *dcwd;		/* the one we are in now */
@@ -1,991 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)dol.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-/*
- * These routines perform variable substitution and quoting via ' and ".
- * To this point these constructs have been preserved in the divided
- * input words.  Here we expand variables and turn quoting via ' and " into
- * QUOTE bits on characters (which prevent further interpretation).
- * If the `:q' modifier was applied during history expansion, then
- * some QUOTEing may have occurred already, so we dont "trim()" here.
- */
-
-static int Dpeekc, Dpeekrd;	/* Peeks for DgetC and Dreadc */
-static Char *Dcp, **Dvp;	/* Input vector for Dreadc */
-
-#define	DEOF	-1
-
-#define	unDgetC(c)	Dpeekc = c
-
-#define QUOTES		(_QF|_QB|_ESC)	/* \ ' " ` */
-
-/*
- * The following variables give the information about the current
- * $ expansion, recording the current word position, the remaining
- * words within this expansion, the count of remaining words, and the
- * information about any : modifier which is being applied.
- */
-#define MAXWLEN (BUFSIZ - 4)
-#define MAXMOD MAXWLEN		/* This cannot overflow	*/
-static Char *dolp;		/* Remaining chars from this word */
-static Char **dolnxt;		/* Further words */
-static int dolcnt;		/* Count of further words */
-static Char dolmod[MAXMOD];	/* : modifier character */
-static int dolnmod;		/* Number of modifiers */
-static int dolmcnt;		/* :gx -> 10000, else 1 */
-static int dolwcnt;		/* :wx -> 10000, else 1 */
-
-static void	 Dfix2 __P((Char **));
-static Char	*Dpack __P((Char *, Char *));
-static int	 Dword __P((void));
-static void	 dolerror __P((Char *));
-static int	 DgetC __P((int));
-static void	 Dgetdol __P((void));
-static void	 fixDolMod __P((void));
-static void	 setDolp __P((Char *));
-static void	 unDredc __P((int));
-static int	 Dredc __P((void));
-static void	 Dtestq __P((int));
-
-
-/*
- * Fix up the $ expansions and quotations in the
- * argument list to command t.
- */
-void
-Dfix(t)
-    struct command *t;
-{
-    Char **pp;
-    Char *p;
-
-    if (noexec)
-	return;
-    /* Note that t_dcom isn't trimmed thus !...:q's aren't lost */
-    for (pp = t->t_dcom; (p = *pp++) != NULL;)
-	for (; *p; p++) {
-	    if (cmap(*p, _DOL | QUOTES)) {	/* $, \, ', ", ` */
-		Dfix2(t->t_dcom);	/* found one */
-		blkfree(t->t_dcom);
-		t->t_dcom = gargv;
-		gargv = 0;
-		return;
-	    }
-	}
-}
-
-/*
- * $ substitute one word, for i/o redirection
- */
-Char   *
-Dfix1(cp)
-    Char *cp;
-{
-    Char   *Dv[2];
-
-    if (noexec)
-	return (0);
-    Dv[0] = cp;
-    Dv[1] = NULL;
-    Dfix2(Dv);
-    if (gargc != 1) {
-	setname(vis_str(cp));
-	stderror(ERR_NAME | ERR_AMBIG);
-    }
-    cp = Strsave(gargv[0]);
-    blkfree(gargv), gargv = 0;
-    return (cp);
-}
-
-/*
- * Subroutine to do actual fixing after state initialization.
- */
-static void
-Dfix2(v)
-    Char  **v;
-{
-    ginit();			/* Initialize glob's area pointers */
-    Dvp = v;
-    Dcp = STRNULL;		/* Setup input vector for Dreadc */
-    unDgetC(0);
-    unDredc(0);			/* Clear out any old peeks (at error) */
-    dolp = 0;
-    dolcnt = 0;			/* Clear out residual $ expands (...) */
-    while (Dword())
-	continue;
-}
-
-/*
- * Pack up more characters in this word
- */
-static Char *
-Dpack(wbuf, wp)
-    Char   *wbuf, *wp;
-{
-    int c;
-    int i = MAXWLEN - (wp - wbuf);
-
-    for (;;) {
-	c = DgetC(DODOL);
-	if (c == '\\') {
-	    c = DgetC(0);
-	    if (c == DEOF) {
-		unDredc(c);
-		*wp = 0;
-		Gcat(STRNULL, wbuf);
-		return (NULL);
-	    }
-	    if (c == '\n')
-		c = ' ';
-	    else
-		c |= QUOTE;
-	}
-	if (c == DEOF) {
-	    unDredc(c);
-	    *wp = 0;
-	    Gcat(STRNULL, wbuf);
-	    return (NULL);
-	}
-	if (cmap(c, _SP | _NL | _QF | _QB)) {	/* sp \t\n'"` */
-	    unDgetC(c);
-	    if (cmap(c, QUOTES))
-		return (wp);
-	    *wp++ = 0;
-	    Gcat(STRNULL, wbuf);
-	    return (NULL);
-	}
-	if (--i <= 0)
-	    stderror(ERR_WTOOLONG);
-	*wp++ = c;
-    }
-}
-
-/*
- * Get a word.  This routine is analogous to the routine
- * word() in sh.lex.c for the main lexical input.  One difference
- * here is that we don't get a newline to terminate our expansion.
- * Rather, DgetC will return a DEOF when we hit the end-of-input.
- */
-static int
-Dword()
-{
-    int c, c1;
-    Char    wbuf[BUFSIZ];
-    Char *wp = wbuf;
-    int i = MAXWLEN;
-    bool dolflg;
-    bool    sofar = 0, done = 0;
-
-    while (!done) {
-	done = 1;
-	c = DgetC(DODOL);
-	switch (c) {
-
-	case DEOF:
-	    if (sofar == 0)
-		return (0);
-	    /* finish this word and catch the code above the next time */
-	    unDredc(c);
-	    /* fall into ... */
-
-	case '\n':
-	    *wp = 0;
-	    Gcat(STRNULL, wbuf);
-	    return (1);
-
-	case ' ':
-	case '\t':
-	    done = 0;
-	    break;
-
-	case '`':
-	    /* We preserve ` quotations which are done yet later */
-	    *wp++ = c, --i;
-	case '\'':
-	case '"':
-	    /*
-	     * Note that DgetC never returns a QUOTES character from an
-	     * expansion, so only true input quotes will get us here or out.
-	     */
-	    c1 = c;
-	    dolflg = c1 == '"' ? DODOL : 0;
-	    for (;;) {
-		c = DgetC(dolflg);
-		if (c == c1)
-		    break;
-		if (c == '\n' || c == DEOF)
-		    stderror(ERR_UNMATCHED, c1);
-		if ((c & (QUOTE | TRIM)) == ('\n' | QUOTE))
-		    --wp, ++i;
-		if (--i <= 0)
-		    stderror(ERR_WTOOLONG);
-		switch (c1) {
-
-		case '"':
-		    /*
-		     * Leave any `s alone for later. Other chars are all
-		     * quoted, thus `...` can tell it was within "...".
-		     */
-		    *wp++ = c == '`' ? '`' : c | QUOTE;
-		    break;
-
-		case '\'':
-		    /* Prevent all further interpretation */
-		    *wp++ = c | QUOTE;
-		    break;
-
-		case '`':
-		    /* Leave all text alone for later */
-		    *wp++ = c;
-		    break;
-
-		default:
-		    break;
-		}
-	    }
-	    if (c1 == '`')
-		*wp++ = '`' /* i--; eliminated */;
-	    sofar = 1;
-	    if ((wp = Dpack(wbuf, wp)) == NULL)
-		return (1);
-	    else {
-		i = MAXWLEN - (wp - wbuf);
-		done = 0;
-	    }
-	    break;
-
-	case '\\':
-	    c = DgetC(0);	/* No $ subst! */
-	    if (c == '\n' || c == DEOF) {
-		done = 0;
-		break;
-	    }
-	    c |= QUOTE;
-	    break;
-
-	default:
-	    break;
-	}
-	if (done) {
-	    unDgetC(c);
-	    sofar = 1;
-	    if ((wp = Dpack(wbuf, wp)) == NULL)
-		return (1);
-	    else {
-		i = MAXWLEN - (wp - wbuf);
-		done = 0;
-	    }
-	}
-    }
-    /* Really NOTREACHED */
-    return (0);
-}
-
-
-/*
- * Get a character, performing $ substitution unless flag is 0.
- * Any QUOTES character which is returned from a $ expansion is
- * QUOTEd so that it will not be recognized above.
- */
-static int
-DgetC(flag)
-    int flag;
-{
-    int c;
-
-top:
-    if ((c = Dpeekc) != '\0') {
-	Dpeekc = 0;
-	return (c);
-    }
-    if (lap) {
-	c = *lap++ & (QUOTE | TRIM);
-	if (c == 0) {
-	    lap = 0;
-	    goto top;
-	}
-quotspec:
-	if (cmap(c, QUOTES))
-	    return (c | QUOTE);
-	return (c);
-    }
-    if (dolp) {
-	if ((c = *dolp++ & (QUOTE | TRIM)) != '\0')
-	    goto quotspec;
-	if (dolcnt > 0) {
-	    setDolp(*dolnxt++);
-	    --dolcnt;
-	    return (' ');
-	}
-	dolp = 0;
-    }
-    if (dolcnt > 0) {
-	setDolp(*dolnxt++);
-	--dolcnt;
-	goto top;
-    }
-    c = Dredc();
-    if (c == '$' && flag) {
-	Dgetdol();
-	goto top;
-    }
-    return (c);
-}
-
-static Char *nulvec[] = {0};
-static struct varent nulargv = {nulvec, STRargv, { NULL, NULL, NULL }, 0};
-
-static void
-dolerror(s)
-    Char   *s;
-{
-    setname(vis_str(s));
-    stderror(ERR_NAME | ERR_RANGE);
-}
-
-/*
- * Handle the multitudinous $ expansion forms.
- * Ugh.
- */
-static void
-Dgetdol()
-{
-    Char *np;
-    struct varent *vp = NULL;
-    Char    name[4 * MAXVARLEN + 1];
-    int     c, sc;
-    int     subscr = 0, lwb = 1, upb = 0;
-    bool    dimen = 0, bitset = 0;
-    char    tnp;
-    Char    wbuf[BUFSIZ];
-    static Char *dolbang = NULL;
-
-    dolnmod = dolmcnt = dolwcnt = 0;
-    c = sc = DgetC(0);
-    if (c == '{')
-	c = DgetC(0);		/* sc is { to take } later */
-    if ((c & TRIM) == '#')
-	dimen++, c = DgetC(0);	/* $# takes dimension */
-    else if (c == '?')
-	bitset++, c = DgetC(0);	/* $? tests existence */
-    switch (c) {
-
-    case '!':
-	if (dimen || bitset)
-	    stderror(ERR_SYNTAX);
-	if (backpid != 0) {
-	    if (dolbang)
-		xfree((ptr_t) dolbang);
-	    setDolp(dolbang = putn(backpid));
-	}
-	goto eatbrac;
-
-    case '$':
-	if (dimen || bitset)
-	    stderror(ERR_SYNTAX);
-	setDolp(doldol);
-	goto eatbrac;
-
-    case '<' | QUOTE:
-	if (bitset)
-	    stderror(ERR_NOTALLOWED, "$?<");
-	if (dimen)
-	    stderror(ERR_NOTALLOWED, "$?#");
-	for (np = wbuf; read(OLDSTD, &tnp, 1) == 1; np++) {
-	    *np = (unsigned char) tnp;
-	    if (np >= &wbuf[BUFSIZ - 1])
-		stderror(ERR_LTOOLONG);
-	    if (tnp == '\n')
-		break;
-	}
-	*np = 0;
-	/*
-	 * KLUDGE: dolmod is set here because it will cause setDolp to call
-	 * domod and thus to copy wbuf. Otherwise setDolp would use it
-	 * directly. If we saved it ourselves, no one would know when to free
-	 * it. The actual function of the 'q' causes filename expansion not to
-	 * be done on the interpolated value.
-	 */
-	dolmod[dolnmod++] = 'q';
-	dolmcnt = 10000;
-	setDolp(wbuf);
-	goto eatbrac;
-
-    case DEOF:
-    case '\n':
-	stderror(ERR_SYNTAX);
-	/* NOTREACHED */
-	break;
-
-    case '*':
-	(void) Strcpy(name, STRargv);
-	vp = adrof(STRargv);
-	subscr = -1;		/* Prevent eating [...] */
-	break;
-
-    default:
-	np = name;
-	if (Isdigit(c)) {
-	    if (dimen)
-		stderror(ERR_NOTALLOWED, "$#<num>");
-	    subscr = 0;
-	    do {
-		subscr = subscr * 10 + c - '0';
-		c = DgetC(0);
-	    } while (Isdigit(c));
-	    unDredc(c);
-	    if (subscr < 0) {
-		dolerror(vp->v_name);
-		return;
-	    }
-	    if (subscr == 0) {
-		if (bitset) {
-		    dolp = ffile ? STR1 : STR0;
-		    goto eatbrac;
-		}
-		if (ffile == 0)
-		    stderror(ERR_DOLZERO);
-		fixDolMod();
-		setDolp(ffile);
-		goto eatbrac;
-	    }
-	    if (bitset)
-		stderror(ERR_DOLQUEST);
-	    vp = adrof(STRargv);
-	    if (vp == 0) {
-		vp = &nulargv;
-		goto eatmod;
-	    }
-	    break;
-	}
-	if (!alnum(c))
-	    stderror(ERR_VARALNUM);
-	for (;;) {
-	    *np++ = c;
-	    c = DgetC(0);
-	    if (!alnum(c))
-		break;
-	    if (np >= &name[MAXVARLEN])
-		stderror(ERR_VARTOOLONG);
-	}
-	*np++ = 0;
-	unDredc(c);
-	vp = adrof(name);
-    }
-    if (bitset) {
-	dolp = (vp || getenv(short2str(name))) ? STR1 : STR0;
-	goto eatbrac;
-    }
-    if (vp == 0) {
-	np = str2short(getenv(short2str(name)));
-	if (np) {
-	    fixDolMod();
-	    setDolp(np);
-	    goto eatbrac;
-	}
-	udvar(name);
-	/* NOTREACHED */
-    }
-    c = DgetC(0);
-    upb = blklen(vp->vec);
-    if (dimen == 0 && subscr == 0 && c == '[') {
-	np = name;
-	for (;;) {
-	    c = DgetC(DODOL);	/* Allow $ expand within [ ] */
-	    if (c == ']')
-		break;
-	    if (c == '\n' || c == DEOF)
-		stderror(ERR_INCBR);
-	    if (np >= &name[sizeof(name) / sizeof(Char) - 2])
-		stderror(ERR_VARTOOLONG);
-	    *np++ = c;
-	}
-	*np = 0, np = name;
-	if (dolp || dolcnt)	/* $ exp must end before ] */
-	    stderror(ERR_EXPORD);
-	if (!*np)
-	    stderror(ERR_SYNTAX);
-	if (Isdigit(*np)) {
-	    int     i;
-
-	    for (i = 0; Isdigit(*np); i = i * 10 + *np++ - '0')
-		continue;
-	    if ((i < 0 || i > upb) && !any("-*", *np)) {
-		dolerror(vp->v_name);
-		return;
-	    }
-	    lwb = i;
-	    if (!*np)
-		upb = lwb, np = STRstar;
-	}
-	if (*np == '*')
-	    np++;
-	else if (*np != '-')
-	    stderror(ERR_MISSING, '-');
-	else {
-	    int i = upb;
-
-	    np++;
-	    if (Isdigit(*np)) {
-		i = 0;
-		while (Isdigit(*np))
-		    i = i * 10 + *np++ - '0';
-		if (i < 0 || i > upb) {
-		    dolerror(vp->v_name);
-		    return;
-		}
-	    }
-	    if (i < lwb)
-		upb = lwb - 1;
-	    else
-		upb = i;
-	}
-	if (lwb == 0) {
-	    if (upb != 0) {
-		dolerror(vp->v_name);
-		return;
-	    }
-	    upb = -1;
-	}
-	if (*np)
-	    stderror(ERR_SYNTAX);
-    }
-    else {
-	if (subscr > 0) {
-	    if (subscr > upb)
-		lwb = 1, upb = 0;
-	    else
-		lwb = upb = subscr;
-	}
-	unDredc(c);
-    }
-    if (dimen) {
-	Char   *cp = putn(upb - lwb + 1);
-
-	addla(cp);
-	xfree((ptr_t) cp);
-    }
-    else {
-eatmod:
-	fixDolMod();
-	dolnxt = &vp->vec[lwb - 1];
-	dolcnt = upb - lwb + 1;
-    }
-eatbrac:
-    if (sc == '{') {
-	c = Dredc();
-	if (c != '}')
-	    stderror(ERR_MISSING, '}');
-    }
-}
-
-static void
-fixDolMod()
-{
-    int c;
-
-    c = DgetC(0);
-    if (c == ':') {
-	do {
-	    c = DgetC(0), dolmcnt = 1, dolwcnt = 1;
-	    if (c == 'g' || c == 'a') {
-		if (c == 'g')
-		    dolmcnt = 10000;
-		else
-		    dolwcnt = 10000;
-		c = DgetC(0);
-	    }
-	    if ((c == 'g' && dolmcnt != 10000) ||
-		(c == 'a' && dolwcnt != 10000)) {
-		if (c == 'g')
-		    dolmcnt = 10000;
-		else
-		    dolwcnt = 10000;
-		c = DgetC(0);
-	    }
-
-	    if (c == 's') {	/* [eichin:19910926.0755EST] */
-		int delimcnt = 2;
-		int delim = DgetC(0);
-		dolmod[dolnmod++] = c;
-		dolmod[dolnmod++] = delim;
-
-		if (!delim || letter(delim)
-		    || Isdigit(delim) || any(" \t\n", delim)) {
-		    seterror(ERR_BADSUBST);
-		    break;
-		}
-		while ((c = DgetC(0)) != (-1)) {
-		    dolmod[dolnmod++] = c;
-		    if(c == delim) delimcnt--;
-		    if(!delimcnt) break;
-		}
-		if(delimcnt) {
-		    seterror(ERR_BADSUBST);
-		    break;
-		}
-		continue;
-	    }
-	    if (!any("htrqxes", c))
-		stderror(ERR_BADMOD, c);
-	    dolmod[dolnmod++] = c;
-	    if (c == 'q')
-		dolmcnt = 10000;
-	}
-	while ((c = DgetC(0)) == ':');
-	unDredc(c);
-    }
-    else
-	unDredc(c);
-}
-
-static void
-setDolp(cp)
-    Char *cp;
-{
-    Char *dp;
-    int i;
-
-    if (dolnmod == 0 || dolmcnt == 0) {
-	dolp = cp;
-	return;
-    }
-    dp = cp = Strsave(cp);
-    for (i = 0; i < dolnmod; i++) {
-	/* handle s// [eichin:19910926.0510EST] */
-	if(dolmod[i] == 's') {
-	    int delim;
-	    Char *lhsub, *rhsub, *np;
-	    size_t lhlen = 0, rhlen = 0;
-	    int didmod = 0;
-
-	    delim = dolmod[++i];
-	    if (!delim || letter(delim)
-		|| Isdigit(delim) || any(" \t\n", delim)) {
-		seterror(ERR_BADSUBST);
-		break;
-	    }
-	    lhsub = &dolmod[++i];
-	    while(dolmod[i] != delim && dolmod[++i]) {
-		lhlen++;
-	    }
-	    dolmod[i] = 0;
-	    rhsub = &dolmod[++i];
-	    while(dolmod[i] != delim && dolmod[++i]) {
-		rhlen++;
-	    }
-	    dolmod[i] = 0;
-
-	    do {
-		dp = Strstr(cp, lhsub);
-		if (dp) {
-		    np = (Char *) xmalloc((size_t)
-					  ((Strlen(cp) + 1 - lhlen + rhlen) *
-					  sizeof(Char)));
-		    (void) Strncpy(np, cp, dp - cp);
-		    (void) Strcpy(np + (dp - cp), rhsub);
-		    (void) Strcpy(np + (dp - cp) + rhlen, dp + lhlen);
-
-		    xfree((ptr_t) cp);
-		    dp = cp = np;
-		    didmod = 1;
-		} else {
-		    /* should this do a seterror? */
-		    break;
-		}
-	    }
-	    while (dolwcnt == 10000);
-	    /*
-	     * restore dolmod for additional words
-	     */
-	    dolmod[i] = rhsub[-1] = delim;
-	    if (didmod)
-		dolmcnt--;
-	    else
-		break;
-        } else {
-	    int didmod = 0;
-
-	    do {
-		if ((dp = domod(cp, dolmod[i]))) {
-		    didmod = 1;
-		    if (Strcmp(cp, dp) == 0) {
-			xfree((ptr_t) cp);
-			cp = dp;
-			break;
-		    }
-		    else {
-			xfree((ptr_t) cp);
-			cp = dp;
-		    }
-		}
-		else
-		    break;
-	    }
-	    while (dolwcnt == 10000);
-	    dp = cp;
-	    if (didmod)
-		dolmcnt--;
-	    else
-		break;
-	}
-    }
-
-    if (dp) {
-	addla(dp);
-	xfree((ptr_t) dp);
-    }
-    else
-	addla(cp);
-
-    dolp = STRNULL;
-    if (seterr)
-	stderror(ERR_OLD);
-}
-
-static void
-unDredc(c)
-    int     c;
-{
-
-    Dpeekrd = c;
-}
-
-static int
-Dredc()
-{
-    int c;
-
-    if ((c = Dpeekrd) != '\0') {
-	Dpeekrd = 0;
-	return (c);
-    }
-    if (Dcp && (c = *Dcp++))
-	return (c & (QUOTE | TRIM));
-    if (*Dvp == 0) {
-	Dcp = 0;
-	return (DEOF);
-    }
-    Dcp = *Dvp++;
-    return (' ');
-}
-
-static void
-Dtestq(c)
-    int c;
-{
-
-    if (cmap(c, QUOTES))
-	gflag = 1;
-}
-
-/*
- * Form a shell temporary file (in unit 0) from the words
- * of the shell input up to EOF or a line the same as "term".
- * Unit 0 should have been closed before this call.
- */
-void
-/*ARGSUSED*/
-heredoc(term)
-    Char *term;
-{
-    int c;
-    Char   *Dv[2];
-    Char    obuf[BUFSIZ], lbuf[BUFSIZ], mbuf[BUFSIZ];
-    int     ocnt, lcnt, mcnt;
-    Char *lbp, *obp, *mbp;
-    Char  **vp;
-    bool    quoted;
-    char   *tmp;
-
-    if (creat(tmp = short2str(shtemp), 0600) < 0)
-	stderror(ERR_SYSTEM, tmp, strerror(errno));
-    (void) close(0);
-    if (open(tmp, O_RDWR) < 0) {
-	int     oerrno = errno;
-
-	(void) unlink(tmp);
-	errno = oerrno;
-	stderror(ERR_SYSTEM, tmp, strerror(errno));
-    }
-    (void) unlink(tmp);		/* 0 0 inode! */
-    Dv[0] = term;
-    Dv[1] = NULL;
-    gflag = 0;
-    trim(Dv);
-    rscan(Dv, Dtestq);
-    quoted = gflag;
-    ocnt = BUFSIZ;
-    obp = obuf;
-    for (;;) {
-	/*
-	 * Read up a line
-	 */
-	lbp = lbuf;
-	lcnt = BUFSIZ - 4;
-	for (;;) {
-	    c = readc(1);	/* 1 -> Want EOF returns */
-	    if (c < 0 || c == '\n')
-		break;
-	    if ((c &= TRIM) != '\0') {
-		*lbp++ = c;
-		if (--lcnt < 0) {
-		    setname("<<");
-		    stderror(ERR_NAME | ERR_OVERFLOW);
-		}
-	    }
-	}
-	*lbp = 0;
-
-	/*
-	 * Check for EOF or compare to terminator -- before expansion
-	 */
-	if (c < 0 || eq(lbuf, term)) {
-	    (void) write(0, short2str(obuf), (size_t) (BUFSIZ - ocnt));
-	    (void) lseek(0, 0l, L_SET);
-	    return;
-	}
-
-	/*
-	 * If term was quoted or -n just pass it on
-	 */
-	if (quoted || noexec) {
-	    *lbp++ = '\n';
-	    *lbp = 0;
-	    for (lbp = lbuf; (c = *lbp++) != '\0';) {
-		*obp++ = c;
-		if (--ocnt == 0) {
-		    (void) write(0, short2str(obuf), BUFSIZ);
-		    obp = obuf;
-		    ocnt = BUFSIZ;
-		}
-	    }
-	    continue;
-	}
-
-	/*
-	 * Term wasn't quoted so variable and then command expand the input
-	 * line
-	 */
-	Dcp = lbuf;
-	Dvp = Dv + 1;
-	mbp = mbuf;
-	mcnt = BUFSIZ - 4;
-	for (;;) {
-	    c = DgetC(DODOL);
-	    if (c == DEOF)
-		break;
-	    if ((c &= TRIM) == 0)
-		continue;
-	    /* \ quotes \ $ ` here */
-	    if (c == '\\') {
-		c = DgetC(0);
-		if (!any("$\\`", c))
-		    unDgetC(c | QUOTE), c = '\\';
-		else
-		    c |= QUOTE;
-	    }
-	    *mbp++ = c;
-	    if (--mcnt == 0) {
-		setname("<<");
-		stderror(ERR_NAME | ERR_OVERFLOW);
-	    }
-	}
-	*mbp++ = 0;
-
-	/*
-	 * If any ` in line do command substitution
-	 */
-	mbp = mbuf;
-	if (any(short2str(mbp), '`')) {
-	    /*
-	     * 1 arg to dobackp causes substitution to be literal. Words are
-	     * broken only at newlines so that all blanks and tabs are
-	     * preserved.  Blank lines (null words) are not discarded.
-	     */
-	    vp = dobackp(mbuf, 1);
-	}
-	else
-	    /* Setup trivial vector similar to return of dobackp */
-	    Dv[0] = mbp, Dv[1] = NULL, vp = Dv;
-
-	/*
-	 * Resurrect the words from the command substitution each separated by
-	 * a newline.  Note that the last newline of a command substitution
-	 * will have been discarded, but we put a newline after the last word
-	 * because this represents the newline after the last input line!
-	 */
-	for (; *vp; vp++) {
-	    for (mbp = *vp; *mbp; mbp++) {
-		*obp++ = *mbp & TRIM;
-		if (--ocnt == 0) {
-		    (void) write(0, short2str(obuf), BUFSIZ);
-		    obp = obuf;
-		    ocnt = BUFSIZ;
-		}
-	    }
-	    *obp++ = '\n';
-	    if (--ocnt == 0) {
-		(void) write(0, short2str(obuf), BUFSIZ);
-		obp = obuf;
-		ocnt = BUFSIZ;
-	    }
-	}
-	if (pargv)
-	    blkfree(pargv), pargv = 0;
-    }
-}
@@ -1,411 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)err.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-char   *seterr = NULL;	/* Holds last error if there was one */
-
-#define ERR_FLAGS	0xf0000000
-#define ERR_NAME	0x10000000
-#define ERR_SILENT	0x20000000
-#define ERR_OLD		0x40000000
-
-static char *errorlist[] =
-{
-#define ERR_SYNTAX	0
-    "Syntax Error",
-#define ERR_NOTALLOWED	1
-    "%s is not allowed",
-#define ERR_WTOOLONG	2
-    "Word too long",
-#define ERR_LTOOLONG	3
-    "$< line too long",
-#define ERR_DOLZERO	4
-    "No file for $0",
-#define ERR_DOLQUEST	5
-    "$? not allowed here",
-#define ERR_INCBR	6
-    "Incomplete [] modifier",
-#define ERR_EXPORD	7
-    "$ expansion must end before ]",
-#define ERR_BADMOD	8
-    "Bad : modifier in $ (%c)",
-#define ERR_SUBSCRIPT	9
-    "Subscript error",
-#define ERR_BADNUM	10
-    "Badly formed number",
-#define ERR_NOMORE	11
-    "No more words",
-#define ERR_FILENAME	12
-    "Missing file name",
-#define ERR_GLOB	13
-    "Internal glob error",
-#define ERR_COMMAND	14
-    "Command not found",
-#define ERR_TOOFEW	15
-    "Too few arguments",
-#define ERR_TOOMANY	16
-    "Too many arguments",
-#define ERR_DANGER	17
-    "Too dangerous to alias that",
-#define ERR_EMPTYIF	18
-    "Empty if",
-#define ERR_IMPRTHEN	19
-    "Improper then",
-#define ERR_NOPAREN	20
-    "Words not parenthesized",
-#define ERR_NOTFOUND	21
-    "%s not found",
-#define ERR_MASK	22
-    "Improper mask",
-#define ERR_LIMIT	23
-    "No such limit",
-#define ERR_TOOLARGE	24
-    "Argument too large",
-#define ERR_SCALEF	25
-    "Improper or unknown scale factor",
-#define ERR_UNDVAR	26
-    "Undefined variable",
-#define ERR_DEEP	27
-    "Directory stack not that deep",
-#define ERR_BADSIG	28
-    "Bad signal number",
-#define ERR_UNKSIG	29
-    "Unknown signal; kill -l lists signals",
-#define ERR_VARBEGIN	30
-    "Variable name must begin with a letter",
-#define ERR_VARTOOLONG	31
-    "Variable name too long",
-#define ERR_VARALNUM	32
-    "Variable name must contain alphanumeric characters",
-#define ERR_JOBCONTROL	33
-    "No job control in this shell",
-#define ERR_EXPRESSION	34
-    "Expression Syntax",
-#define ERR_NOHOMEDIR	35
-    "No home directory",
-#define ERR_CANTCHANGE	36
-    "Can't change to home directory",
-#define ERR_NULLCOM	37
-    "Invalid null command",
-#define ERR_ASSIGN	38
-    "Assignment missing expression",
-#define ERR_UNKNOWNOP	39
-    "Unknown operator",
-#define ERR_AMBIG	40
-    "Ambiguous",
-#define ERR_EXISTS	41
-    "%s: File exists",
-#define ERR_INTR	42
-    "Interrupted",
-#define ERR_RANGE	43
-    "Subscript out of range",
-#define ERR_OVERFLOW	44
-    "Line overflow",
-#define ERR_VARMOD	45
-    "Unknown variable modifier",
-#define ERR_NOSUCHJOB	46
-    "No such job",
-#define ERR_TERMINAL	47
-    "Can't from terminal",
-#define ERR_NOTWHILE	48
-    "Not in while/foreach",
-#define ERR_NOPROC	49
-    "No more processes",
-#define ERR_NOMATCH	50
-    "No match",
-#define ERR_MISSING	51
-    "Missing %c",
-#define ERR_UNMATCHED	52
-    "Unmatched %c",
-#define ERR_NOMEM	53
-    "Out of memory",
-#define ERR_PIPE	54
-    "Can't make pipe",
-#define ERR_SYSTEM	55
-    "%s: %s",
-#define ERR_STRING	56
-    "%s",
-#define ERR_JOBS	57
-    "Usage: jobs [ -l ]",
-#define ERR_JOBARGS	58
-    "Arguments should be jobs or process id's",
-#define ERR_JOBCUR	59
-    "No current job",
-#define ERR_JOBPREV	60
-    "No previous job",
-#define ERR_JOBPAT	61
-    "No job matches pattern",
-#define ERR_NESTING	62
-    "Fork nesting > %d; maybe `...` loop",
-#define ERR_JOBCTRLSUB	63
-    "No job control in subshells",
-#define ERR_BADPLPS	64
-    "Badly placed ()'s",
-#define ERR_STOPPED	65
-    "%sThere are suspended jobs",
-#define ERR_NODIR	66
-    "No other directory",
-#define ERR_EMPTY	67
-    "Directory stack empty",
-#define ERR_BADDIR	68
-    "Bad directory",
-#define ERR_DIRUS	69
-    "Usage: %s [-lvn]%s",
-#define ERR_HFLAG	70
-    "No operand for -h flag",
-#define ERR_NOTLOGIN	71
-    "Not a login shell",
-#define ERR_DIV0	72
-    "Division by 0",
-#define ERR_MOD0	73
-    "Mod by 0",
-#define ERR_BADSCALE	74
-    "Bad scaling; did you mean \"%s\"?",
-#define ERR_SUSPLOG	75
-    "Can't suspend a login shell (yet)",
-#define ERR_UNKUSER	76
-    "Unknown user: %s",
-#define ERR_NOHOME	77
-    "No $home variable set",
-#define ERR_HISTUS	78
-    "Usage: history [-rh] [# number of events]",
-#define ERR_SPDOLLT	79
-    "$, ! or < not allowed with $# or $?",
-#define ERR_NEWLINE	80
-    "Newline in variable name",
-#define ERR_SPSTAR	81
-    "* not allowed with $# or $?",
-#define ERR_DIGIT	82
-    "$?<digit> or $#<digit> not allowed",
-#define ERR_VARILL	83
-    "Illegal variable name",
-#define ERR_NLINDEX	84
-    "Newline in variable index",
-#define ERR_EXPOVFL	85
-    "Expansion buffer overflow",
-#define ERR_VARSYN	86
-    "Variable syntax",
-#define ERR_BADBANG	87
-    "Bad ! form",
-#define ERR_NOSUBST	88
-    "No previous substitute",
-#define ERR_BADSUBST	89
-    "Bad substitute",
-#define ERR_LHS		90
-    "No previous left hand side",
-#define ERR_RHSLONG	91
-    "Right hand side too long",
-#define ERR_BADBANGMOD	92
-    "Bad ! modifier: %c",
-#define ERR_MODFAIL	93
-    "Modifier failed",
-#define ERR_SUBOVFL	94
-    "Substitution buffer overflow",
-#define ERR_BADBANGARG	95
-    "Bad ! arg selector",
-#define ERR_NOSEARCH	96
-    "No prev search",
-#define ERR_NOEVENT	97
-    "%s: Event not found",
-#define ERR_TOOMANYRP	98
-    "Too many )'s",
-#define ERR_TOOMANYLP	99
-    "Too many ('s",
-#define ERR_BADPLP	100
-    "Badly placed (",
-#define ERR_MISRED	101
-    "Missing name for redirect",
-#define ERR_OUTRED	102
-    "Ambiguous output redirect",
-#define ERR_REDPAR	103
-    "Can't << within ()'s",
-#define ERR_INRED	104
-    "Ambiguous input redirect",
-#define ERR_ALIASLOOP	105
-    "Alias loop",
-#define ERR_HISTLOOP	106
-    "!# History loop",
-#define ERR_ARCH        107
-    "%s: %s. Wrong Architecture",
-#define ERR_FILEINQ	108
-    "Malformed file inquiry",
-#define ERR_SELOVFL	109
-    "Selector overflow",
-#define ERR_INVALID	110
-    "Invalid Error"
-};
-
-/*
- * The parser and scanner set up errors for later by calling seterr,
- * which sets the variable err as a side effect; later to be tested,
- * e.g. in process.
- */
-void
-#if __STDC__
-seterror(int id, ...)
-#else
-seterror(id, va_alist)
-     int id;
-     va_dcl
-#endif
-{
-    if (seterr == 0) {
-	char    berr[BUFSIZ];
-	va_list va;
-
-#if __STDC__
-	va_start(va, id);
-#else
-	va_start(va);
-#endif
-	if (id < 0 || id > sizeof(errorlist) / sizeof(errorlist[0]))
-	    id = ERR_INVALID;
-	vsnprintf(berr, sizeof(berr), errorlist[id], va);
-	va_end(va);
-
-	seterr = strsave(berr);
-    }
-}
-
-/*
- * Print the error with the given id.
- *
- * Special ids:
- *	ERR_SILENT: Print nothing.
- *	ERR_OLD: Print the previously set error if one was there.
- *	         otherwise return.
- *	ERR_NAME: If this bit is set, print the name of the function
- *		  in bname
- *
- * This routine always resets or exits.  The flag haderr
- * is set so the routine who catches the unwind can propagate
- * it if they want.
- *
- * Note that any open files at the point of error will eventually
- * be closed in the routine process in sh.c which is the only
- * place error unwinds are ever caught.
- */
-void
-#if __STDC__
-stderror(int id, ...)
-#else
-stderror(id, va_alist)
-    int     id;
-    va_dcl
-#endif
-{
-    va_list va;
-    Char **v;
-    int     flags = id & ERR_FLAGS;
-
-    id &= ~ERR_FLAGS;
-
-    if ((flags & ERR_OLD) && seterr == NULL)
-	return;
-
-    if (id < 0 || id > sizeof(errorlist) / sizeof(errorlist[0]))
-	id = ERR_INVALID;
-
-    (void) fflush(cshout);
-    (void) fflush(csherr);
-    haderr = 1;			/* Now to diagnostic output */
-    timflg = 0;			/* This isn't otherwise reset */
-
-
-    if (!(flags & ERR_SILENT)) {
-	if (flags & ERR_NAME)
-	    (void) fprintf(csherr, "%s: ", bname);
-	if ((flags & ERR_OLD))
-	    /* Old error. */
-	    (void) fprintf(csherr, "%s.\n", seterr);
-	else {
-#if __STDC__
-	    va_start(va, id);
-#else
-	    va_start(va);
-#endif
-	    (void) vfprintf(csherr, errorlist[id], va);
-	    va_end(va);
-	    (void) fprintf(csherr, ".\n");
-	}
-    }
-
-    if (seterr) {
-	xfree((ptr_t) seterr);
-	seterr = NULL;
-    }
-
-    if ((v = pargv) != NULL)
-	pargv = 0, blkfree(v);
-    if ((v = gargv) != NULL)
-	gargv = 0, blkfree(v);
-
-    (void) fflush(cshout);
-    (void) fflush(csherr);
-    didfds = 0;			/* Forget about 0,1,2 */
-    /*
-     * Go away if -e or we are a child shell
-     */
-    if (exiterr || child)
-	xexit(1);
-
-    /*
-     * Reset the state of the input. This buffered seek to end of file will
-     * also clear the while/foreach stack.
-     */
-    btoeof();
-
-    set(STRstatus, Strsave(STR1));
-    if (tpgrp > 0)
-	(void) tcsetpgrp(FSHTTY, tpgrp);
-    reset();			/* Unwind */
-}
@@ -1,746 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)exec.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-/*
- * System level search and execute of a command.  We look in each directory
- * for the specified command name.  If the name contains a '/' then we
- * execute only the full path name.  If there is no search path then we
- * execute only full path names.
- */
-extern char **environ;
-
-/*
- * As we search for the command we note the first non-trivial error
- * message for presentation to the user.  This allows us often
- * to show that a file has the wrong mode/no access when the file
- * is not in the last component of the search path, so we must
- * go on after first detecting the error.
- */
-static char *exerr;		/* Execution error message */
-static Char *expath;		/* Path for exerr */
-
-/*
- * Xhash is an array of HSHSIZ bits (HSHSIZ / 8 chars), which are used
- * to hash execs.  If it is allocated (havhash true), then to tell
- * whether ``name'' is (possibly) present in the i'th component
- * of the variable path, you look at the bit in xhash indexed by
- * hash(hashname("name"), i).  This is setup automatically
- * after .login is executed, and recomputed whenever ``path'' is
- * changed.
- * The two part hash function is designed to let texec() call the
- * more expensive hashname() only once and the simple hash() several
- * times (once for each path component checked).
- * Byte size is assumed to be 8.
- */
-#define	HSHSIZ		8192	/* 1k bytes */
-#define HSHMASK		(HSHSIZ - 1)
-#define HSHMUL		243
-static char xhash[HSHSIZ / 8];
-
-#define hash(a, b)	(((a) * HSHMUL + (b)) & HSHMASK)
-#define bit(h, b)	((h)[(b) >> 3] & 1 << ((b) & 7))	/* bit test */
-#define bis(h, b)	((h)[(b) >> 3] |= 1 << ((b) & 7))	/* bit set */
-static int hits, misses;
-
-/* Dummy search path for just absolute search when no path */
-static Char *justabs[] = {STRNULL, 0};
-
-static void	pexerr __P((void));
-static void	texec __P((Char *, Char **));
-static int	hashname __P((Char *));
-static void 	tellmewhat __P((struct wordent *));
-static int	executable __P((Char *, Char *, bool));
-static int	iscommand __P((Char *));
-
-
-void
-/*ARGSUSED*/
-doexec(v, t)
-    Char **v;
-    struct command *t;
-{
-    Char *dp, **pv, **av, *sav;
-    struct varent *pathv;
-    bool slash;
-    int hashval = 0, hashval1, i;
-    Char   *blk[2];
-
-    /*
-     * Glob the command name. We will search $path even if this does something,
-     * as in sh but not in csh.  One special case: if there is no PATH, then we
-     * execute only commands which start with '/'.
-     */
-    blk[0] = t->t_dcom[0];
-    blk[1] = 0;
-    gflag = 0, tglob(blk);
-    if (gflag) {
-	pv = globall(blk);
-	if (pv == 0) {
-	    setname(vis_str(blk[0]));
-	    stderror(ERR_NAME | ERR_NOMATCH);
-	}
-	gargv = 0;
-    }
-    else
-	pv = saveblk(blk);
-
-    trim(pv);
-
-    exerr = 0;
-    expath = Strsave(pv[0]);
-    Vexpath = expath;
-
-    pathv = adrof(STRpath);
-    if (pathv == 0 && expath[0] != '/') {
-	blkfree(pv);
-	pexerr();
-    }
-    slash = any(short2str(expath), '/');
-
-    /*
-     * Glob the argument list, if necessary. Otherwise trim off the quote bits.
-     */
-    gflag = 0;
-    av = &t->t_dcom[1];
-    tglob(av);
-    if (gflag) {
-	av = globall(av);
-	if (av == 0) {
-	    blkfree(pv);
-	    setname(vis_str(expath));
-	    stderror(ERR_NAME | ERR_NOMATCH);
-	}
-	gargv = 0;
-    }
-    else
-	av = saveblk(av);
-
-    blkfree(t->t_dcom);
-    t->t_dcom = blkspl(pv, av);
-    xfree((ptr_t) pv);
-    xfree((ptr_t) av);
-    av = t->t_dcom;
-    trim(av);
-
-    if (*av == NULL || **av == '\0')
-	pexerr();
-
-    xechoit(av);		/* Echo command if -x */
-    /*
-     * Since all internal file descriptors are set to close on exec, we don't
-     * need to close them explicitly here.  Just reorient ourselves for error
-     * messages.
-     */
-    SHIN = 0;
-    SHOUT = 1;
-    SHERR = 2;
-    OLDSTD = 0;
-    /*
-     * We must do this AFTER any possible forking (like `foo` in glob) so that
-     * this shell can still do subprocesses.
-     */
-    (void) sigsetmask(0);
-    /*
-     * If no path, no words in path, or a / in the filename then restrict the
-     * command search.
-     */
-    if (pathv == 0 || pathv->vec[0] == 0 || slash)
-	pv = justabs;
-    else
-	pv = pathv->vec;
-    sav = Strspl(STRslash, *av);/* / command name for postpending */
-    Vsav = sav;
-    if (havhash)
-	hashval = hashname(*av);
-    i = 0;
-    hits++;
-    do {
-	/*
-	 * Try to save time by looking at the hash table for where this command
-	 * could be.  If we are doing delayed hashing, then we put the names in
-	 * one at a time, as the user enters them.  This is kinda like Korn
-	 * Shell's "tracked aliases".
-	 */
-	if (!slash && pv[0][0] == '/' && havhash) {
-	    hashval1 = hash(hashval, i);
-	    if (!bit(xhash, hashval1))
-		goto cont;
-	}
-	if (pv[0][0] == 0 || eq(pv[0], STRdot))	/* don't make ./xxx */
-	    texec(*av, av);
-	else {
-	    dp = Strspl(*pv, sav);
-	    Vdp = dp;
-	    texec(dp, av);
-	    Vdp = 0;
-	    xfree((ptr_t) dp);
-	}
-	misses++;
-cont:
-	pv++;
-	i++;
-    } while (*pv);
-    hits--;
-    Vsav = 0;
-    xfree((ptr_t) sav);
-    pexerr();
-}
-
-static void
-pexerr()
-{
-    /* Couldn't find the damn thing */
-    if (expath) {
-	setname(vis_str(expath));
-	Vexpath = 0;
-	xfree((ptr_t) expath);
-	expath = 0;
-    }
-    else
-	setname("");
-    if (exerr)
-	stderror(ERR_NAME | ERR_STRING, exerr);
-    stderror(ERR_NAME | ERR_COMMAND);
-}
-
-/*
- * Execute command f, arg list t.
- * Record error message if not found.
- * Also do shell scripts here.
- */
-static void
-texec(sf, st)
-    Char   *sf;
-    Char **st;
-{
-    char **t;
-    char *f;
-    struct varent *v;
-    Char **vp;
-    Char   *lastsh[2];
-    int     fd;
-    unsigned char c;
-    Char   *st0, **ost;
-
-    /* The order for the conversions is significant */
-    t = short2blk(st);
-    f = short2str(sf);
-    Vt = t;
-    errno = 0;			/* don't use a previous error */
-    (void) execve(f, t, environ);
-    Vt = 0;
-    blkfree((Char **) t);
-    switch (errno) {
-
-    case ENOEXEC:
-	/*
-	 * From: [email protected] (Casper H.S. Dik) If we could not execute
-	 * it, don't feed it to the shell if it looks like a binary!
-	 */
-	if ((fd = open(f, O_RDONLY)) != -1) {
-	    if (read(fd, (char *) &c, 1) == 1) {
-		if (!Isprint(c) && (c != '\n' && c != '\t')) {
-		    (void) close(fd);
-		    /*
-		     * We *know* what ENOEXEC means.
-		     */
-		    stderror(ERR_ARCH, f, strerror(errno));
-		}
-	    }
-#ifdef _PATH_BSHELL
-	    else
-		c = '#';
-#endif
-	    (void) close(fd);
-	}
-	/*
-	 * If there is an alias for shell, then put the words of the alias in
-	 * front of the argument list replacing the command name. Note no
-	 * interpretation of the words at this point.
-	 */
-	v = adrof1(STRshell, &aliases);
-	if (v == 0) {
-	    vp = lastsh;
-	    vp[0] = adrof(STRshell) ? value(STRshell) : STR_SHELLPATH;
-	    vp[1] = NULL;
-#ifdef _PATH_BSHELL
-	    if (fd != -1 && c != '#')
-		vp[0] = STR_BSHELL;
-#endif
-	}
-	else
-	    vp = v->vec;
-	st0 = st[0];
-	st[0] = sf;
-	ost = st;
-	st = blkspl(vp, st);	/* Splice up the new arglst */
-	ost[0] = st0;
-	sf = *st;
-	/* The order for the conversions is significant */
-	t = short2blk(st);
-	f = short2str(sf);
-	xfree((ptr_t) st);
-	Vt = t;
-	(void) execve(f, t, environ);
-	Vt = 0;
-	blkfree((Char **) t);
-	/* The sky is falling, the sky is falling! */
-
-    case ENOMEM:
-	stderror(ERR_SYSTEM, f, strerror(errno));
-
-    case ENOENT:
-	break;
-
-    default:
-	if (exerr == 0) {
-	    exerr = strerror(errno);
-	    if (expath)
-		xfree((ptr_t) expath);
-	    expath = Strsave(sf);
-	    Vexpath = expath;
-	}
-    }
-}
-
-/*ARGSUSED*/
-void
-execash(t, kp)
-    Char  **t;
-    struct command *kp;
-{
-    int     saveIN, saveOUT, saveDIAG, saveSTD;
-    int     oSHIN;
-    int     oSHOUT;
-    int     oSHERR;
-    int     oOLDSTD;
-    jmp_buf osetexit;
-    int	    my_reenter;
-    int     odidfds;
-    sig_t   osigint, osigquit, osigterm;
-
-    if (chkstop == 0 && setintr)
-	panystop(0);
-    /*
-     * Hmm, we don't really want to do that now because we might
-     * fail, but what is the choice
-     */
-    rechist();
-
-    osigint  = signal(SIGINT, parintr);
-    osigquit = signal(SIGQUIT, parintr);
-    osigterm = signal(SIGTERM, parterm);
-
-    odidfds = didfds;
-    oSHIN = SHIN;
-    oSHOUT = SHOUT;
-    oSHERR = SHERR;
-    oOLDSTD = OLDSTD;
-
-    saveIN = dcopy(SHIN, -1);
-    saveOUT = dcopy(SHOUT, -1);
-    saveDIAG = dcopy(SHERR, -1);
-    saveSTD = dcopy(OLDSTD, -1);
-
-    lshift(kp->t_dcom, 1);
-
-    getexit(osetexit);
-
-    if ((my_reenter = setexit()) == 0) {
-	SHIN = dcopy(0, -1);
-	SHOUT = dcopy(1, -1);
-	SHERR = dcopy(2, -1);
-	didfds = 0;
-	doexec(t, kp);
-    }
-
-    (void) signal(SIGINT, osigint);
-    (void) signal(SIGQUIT, osigquit);
-    (void) signal(SIGTERM, osigterm);
-
-    doneinp = 0;
-    didfds = odidfds;
-    (void) close(SHIN);
-    (void) close(SHOUT);
-    (void) close(SHERR);
-    (void) close(OLDSTD);
-    SHIN = dmove(saveIN, oSHIN);
-    SHOUT = dmove(saveOUT, oSHOUT);
-    SHERR = dmove(saveDIAG, oSHERR);
-    OLDSTD = dmove(saveSTD, oOLDSTD);
-
-    resexit(osetexit);
-    if (my_reenter)
-	stderror(ERR_SILENT);
-}
-
-void
-xechoit(t)
-    Char  **t;
-{
-    if (adrof(STRecho)) {
-	(void) fflush(csherr);
-	blkpr(csherr, t);
-	(void) fputc('\n', csherr);
-    }
-}
-
-void
-/*ARGSUSED*/
-dohash(v, t)
-    Char **v;
-    struct command *t;
-{
-    DIR    *dirp;
-    struct dirent *dp;
-    int cnt;
-    int     i = 0;
-    struct varent *pathv = adrof(STRpath);
-    Char  **pv;
-    int     hashval;
-
-    havhash = 1;
-    for (cnt = 0; cnt < sizeof xhash; cnt++)
-	xhash[cnt] = 0;
-    if (pathv == 0)
-	return;
-    for (pv = pathv->vec; *pv; pv++, i++) {
-	if (pv[0][0] != '/')
-	    continue;
-	dirp = opendir(short2str(*pv));
-	if (dirp == NULL)
-	    continue;
-	while ((dp = readdir(dirp)) != NULL) {
-	    if (dp->d_ino == 0)
-		continue;
-	    if (dp->d_name[0] == '.' &&
-		(dp->d_name[1] == '\0' ||
-		 (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
-		continue;
-	    hashval = hash(hashname(str2short(dp->d_name)), i);
-	    bis(xhash, hashval);
-	    /* tw_add_comm_name (dp->d_name); */
-	}
-	(void) closedir(dirp);
-    }
-}
-
-void
-/*ARGSUSED*/
-dounhash(v, t)
-    Char **v;
-    struct command *t;
-{
-    havhash = 0;
-}
-
-void
-/*ARGSUSED*/
-hashstat(v, t)
-    Char **v;
-    struct command *t;
-{
-    if (hits + misses)
-	(void) fprintf(cshout, "%d hits, %d misses, %d%%\n",
-		       hits, misses, 100 * hits / (hits + misses));
-}
-
-/*
- * Hash a command name.
- */
-static int
-hashname(cp)
-    Char *cp;
-{
-    long h = 0;
-
-    while (*cp)
-	h = hash(h, *cp++);
-    return ((int) h);
-}
-
-static int
-iscommand(name)
-    Char   *name;
-{
-    Char **pv;
-    Char *sav;
-    struct varent *v;
-    bool slash = any(short2str(name), '/');
-    int hashval = 0, hashval1, i;
-
-    v = adrof(STRpath);
-    if (v == 0 || v->vec[0] == 0 || slash)
-	pv = justabs;
-    else
-	pv = v->vec;
-    sav = Strspl(STRslash, name);	/* / command name for postpending */
-    if (havhash)
-	hashval = hashname(name);
-    i = 0;
-    do {
-	if (!slash && pv[0][0] == '/' && havhash) {
-	    hashval1 = hash(hashval, i);
-	    if (!bit(xhash, hashval1))
-		goto cont;
-	}
-	if (pv[0][0] == 0 || eq(pv[0], STRdot)) {	/* don't make ./xxx */
-	    if (executable(NULL, name, 0)) {
-		xfree((ptr_t) sav);
-		return i + 1;
-	    }
-	}
-	else {
-	    if (executable(*pv, sav, 0)) {
-		xfree((ptr_t) sav);
-		return i + 1;
-	    }
-	}
-cont:
-	pv++;
-	i++;
-    } while (*pv);
-    xfree((ptr_t) sav);
-    return 0;
-}
-
-/* Also by:
- *  Andreas Luik <[email protected]>
- *  I S A  GmbH - Informationssysteme fuer computerintegrierte Automatisierung
- *  Azenberstr. 35
- *  D-7000 Stuttgart 1
- *  West-Germany
- * is the executable() routine below and changes to iscommand().
- * Thanks again!!
- */
-
-/*
- * executable() examines the pathname obtained by concatenating dir and name
- * (dir may be NULL), and returns 1 either if it is executable by us, or
- * if dir_ok is set and the pathname refers to a directory.
- * This is a bit kludgy, but in the name of optimization...
- */
-static int
-executable(dir, name, dir_ok)
-    Char   *dir, *name;
-    bool    dir_ok;
-{
-    struct stat stbuf;
-    Char    path[MAXPATHLEN + 1], *dp, *sp;
-    char   *strname;
-
-    if (dir && *dir) {
-	for (dp = path, sp = dir; *sp; *dp++ = *sp++)
-	    if (dp == &path[MAXPATHLEN + 1]) {
-		*--dp = '\0';
-		break;
-	    }
-	for (sp = name; *sp; *dp++ = *sp++)
-	    if (dp == &path[MAXPATHLEN + 1]) {
-		*--dp = '\0';
-		break;
-	    }
-	*dp = '\0';
-	strname = short2str(path);
-    }
-    else
-	strname = short2str(name);
-    return (stat(strname, &stbuf) != -1 &&
-	    ((S_ISREG(stbuf.st_mode) &&
-    /* save time by not calling access() in the hopeless case */
-	      (stbuf.st_mode & (S_IXOTH | S_IXGRP | S_IXUSR)) &&
-	      access(strname, X_OK) == 0) ||
-	     (dir_ok && S_ISDIR(stbuf.st_mode))));
-}
-
-/* The dowhich() is by:
- *  Andreas Luik <[email protected]>
- *  I S A  GmbH - Informationssysteme fuer computerintegrierte Automatisierung
- *  Azenberstr. 35
- *  D-7000 Stuttgart 1
- *  West-Germany
- * Thanks!!
- */
-/*ARGSUSED*/
-void
-dowhich(v, c)
-    Char **v;
-    struct command *c;
-{
-    struct wordent lex[3];
-    struct varent *vp;
-
-    lex[0].next = &lex[1];
-    lex[1].next = &lex[2];
-    lex[2].next = &lex[0];
-
-    lex[0].prev = &lex[2];
-    lex[1].prev = &lex[0];
-    lex[2].prev = &lex[1];
-
-    lex[0].word = STRNULL;
-    lex[2].word = STRret;
-
-    while (*++v) {
-	if ((vp = adrof1(*v, &aliases)) != NULL) {
-	    (void) fprintf(cshout, "%s: \t aliased to ", vis_str(*v));
-	    blkpr(cshout, vp->vec);
-	    (void) fputc('\n', cshout);
-	}
-	else {
-	    lex[1].word = *v;
-	    tellmewhat(lex);
-	}
-    }
-}
-
-static void
-tellmewhat(lex)
-    struct wordent *lex;
-{
-    int i;
-    struct biltins *bptr;
-    struct wordent *sp = lex->next;
-    bool    aliased = 0;
-    Char   *s0, *s1, *s2, *cmd;
-    Char    qc;
-
-    if (adrof1(sp->word, &aliases)) {
-	alias(lex);
-	sp = lex->next;
-	aliased = 1;
-    }
-
-    s0 = sp->word;		/* to get the memory freeing right... */
-
-    /* handle quoted alias hack */
-    if ((*(sp->word) & (QUOTE | TRIM)) == QUOTE)
-	(sp->word)++;
-
-    /* do quoting, if it hasn't been done */
-    s1 = s2 = sp->word;
-    while (*s2)
-	switch (*s2) {
-	case '\'':
-	case '"':
-	    qc = *s2++;
-	    while (*s2 && *s2 != qc)
-		*s1++ = *s2++ | QUOTE;
-	    if (*s2)
-		s2++;
-	    break;
-	case '\\':
-	    if (*++s2)
-		*s1++ = *s2++ | QUOTE;
-	    break;
-	default:
-	    *s1++ = *s2++;
-	}
-    *s1 = '\0';
-
-    for (bptr = bfunc; bptr < &bfunc[nbfunc]; bptr++) {
-	if (eq(sp->word, str2short(bptr->bname))) {
-	    if (aliased)
-		prlex(cshout, lex);
-	    (void) fprintf(cshout, "%s: shell built-in command.\n",
-			   vis_str(sp->word));
-	    sp->word = s0;	/* we save and then restore this */
-	    return;
-	}
-    }
-
-    sp->word = cmd = globone(sp->word, G_IGNORE);
-
-    if ((i = iscommand(strip(sp->word))) != 0) {
-	Char **pv;
-	struct varent *v;
-	bool    slash = any(short2str(sp->word), '/');
-
-	v = adrof(STRpath);
-	if (v == 0 || v->vec[0] == 0 || slash)
-	    pv = justabs;
-	else
-	    pv = v->vec;
-
-	while (--i)
-	    pv++;
-	if (pv[0][0] == 0 || eq(pv[0], STRdot)) {
-	    if (!slash) {
-		sp->word = Strspl(STRdotsl, sp->word);
-		prlex(cshout, lex);
-		xfree((ptr_t) sp->word);
-	    } else
-		prlex(cshout, lex);
-	    sp->word = s0;	/* we save and then restore this */
-	    xfree((ptr_t) cmd);
-	    return;
-	}
-	s1 = Strspl(*pv, STRslash);
-	sp->word = Strspl(s1, sp->word);
-	xfree((ptr_t) s1);
-	prlex(cshout, lex);
-	xfree((ptr_t) sp->word);
-    }
-    else {
-	if (aliased)
-	    prlex(cshout, lex);
-	(void) fprintf(csherr, "%s: Command not found.\n", vis_str(sp->word));
-    }
-    xfree((ptr_t) cmd);
-    sp->word = s0;		/* we save and then restore this */
-}
@@ -1,712 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)exp.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-#define IGNORE	1	/* in ignore, it means to ignore value, just parse */
-#define NOGLOB	2	/* in ignore, it means not to globone */
-
-#define	ADDOP	1
-#define	MULOP	2
-#define	EQOP	4
-#define	RELOP	8
-#define	RESTOP	16
-#define	ANYOP	31
-
-#define	EQEQ	1
-#define	GTR	2
-#define	LSS	4
-#define	NOTEQ	6
-#define EQMATCH 7
-#define NOTEQMATCH 8
-
-static int	exp1	__P((Char ***, bool));
-static int	exp2	__P((Char ***, bool));
-static int	exp2a	__P((Char ***, bool));
-static int	exp2b	__P((Char ***, bool));
-static int	exp2c	__P((Char ***, bool));
-static Char *	exp3	__P((Char ***, bool));
-static Char *	exp3a	__P((Char ***, bool));
-static Char *	exp4	__P((Char ***, bool));
-static Char *	exp5	__P((Char ***, bool));
-static Char *	exp6	__P((Char ***, bool));
-static void	evalav	__P((Char **));
-static int	isa	__P((Char *, int));
-static int	egetn	__P((Char *));
-
-#ifdef EDEBUG
-static void	etracc	__P((char *, Char *, Char ***));
-static void	etraci	__P((char *, int, Char ***));
-#endif
-
-int
-expr(vp)
-    Char ***vp;
-{
-    return (exp0(vp, 0));
-}
-
-int
-exp0(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int p1 = exp1(vp, ignore);
-
-#ifdef EDEBUG
-    etraci("exp0 p1", p1, vp);
-#endif
-    if (**vp && eq(**vp, STRor2)) {
-	int p2;
-
-	(*vp)++;
-	p2 = exp0(vp, (ignore & IGNORE) || p1);
-#ifdef EDEBUG
-	etraci("exp0 p2", p2, vp);
-#endif
-	return (p1 || p2);
-    }
-    return (p1);
-}
-
-static int
-exp1(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int p1 = exp2(vp, ignore);
-
-#ifdef EDEBUG
-    etraci("exp1 p1", p1, vp);
-#endif
-    if (**vp && eq(**vp, STRand2)) {
-	int p2;
-
-	(*vp)++;
-	p2 = exp1(vp, (ignore & IGNORE) || !p1);
-#ifdef EDEBUG
-	etraci("exp1 p2", p2, vp);
-#endif
-	return (p1 && p2);
-    }
-    return (p1);
-}
-
-static int
-exp2(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int p1 = exp2a(vp, ignore);
-
-#ifdef EDEBUG
-    etraci("exp3 p1", p1, vp);
-#endif
-    if (**vp && eq(**vp, STRor)) {
-	int p2;
-
-	(*vp)++;
-	p2 = exp2(vp, ignore);
-#ifdef EDEBUG
-	etraci("exp3 p2", p2, vp);
-#endif
-	return (p1 | p2);
-    }
-    return (p1);
-}
-
-static int
-exp2a(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int p1 = exp2b(vp, ignore);
-
-#ifdef EDEBUG
-    etraci("exp2a p1", p1, vp);
-#endif
-    if (**vp && eq(**vp, STRcaret)) {
-	int p2;
-
-	(*vp)++;
-	p2 = exp2a(vp, ignore);
-#ifdef EDEBUG
-	etraci("exp2a p2", p2, vp);
-#endif
-	return (p1 ^ p2);
-    }
-    return (p1);
-}
-
-static int
-exp2b(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int p1 = exp2c(vp, ignore);
-
-#ifdef EDEBUG
-    etraci("exp2b p1", p1, vp);
-#endif
-    if (**vp && eq(**vp, STRand)) {
-	int p2;
-
-	(*vp)++;
-	p2 = exp2b(vp, ignore);
-#ifdef EDEBUG
-	etraci("exp2b p2", p2, vp);
-#endif
-	return (p1 & p2);
-    }
-    return (p1);
-}
-
-static int
-exp2c(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    Char *p1 = exp3(vp, ignore);
-    Char *p2;
-    int i;
-
-#ifdef EDEBUG
-    etracc("exp2c p1", p1, vp);
-#endif
-    if ((i = isa(**vp, EQOP)) != 0) {
-	(*vp)++;
-	if (i == EQMATCH || i == NOTEQMATCH)
-	    ignore |= NOGLOB;
-	p2 = exp3(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp2c p2", p2, vp);
-#endif
-	if (!(ignore & IGNORE))
-	    switch (i) {
-
-	    case EQEQ:
-		i = eq(p1, p2);
-		break;
-
-	    case NOTEQ:
-		i = !eq(p1, p2);
-		break;
-
-	    case EQMATCH:
-		i = Gmatch(p1, p2);
-		break;
-
-	    case NOTEQMATCH:
-		i = !Gmatch(p1, p2);
-		break;
-	    }
-	xfree((ptr_t) p1);
-	xfree((ptr_t) p2);
-	return (i);
-    }
-    i = egetn(p1);
-    xfree((ptr_t) p1);
-    return (i);
-}
-
-static Char *
-exp3(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    Char *p1, *p2;
-    int i;
-
-    p1 = exp3a(vp, ignore);
-#ifdef EDEBUG
-    etracc("exp3 p1", p1, vp);
-#endif
-    if ((i = isa(**vp, RELOP)) != 0) {
-	(*vp)++;
-	if (**vp && eq(**vp, STRequal))
-	    i |= 1, (*vp)++;
-	p2 = exp3(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp3 p2", p2, vp);
-#endif
-	if (!(ignore & IGNORE))
-	    switch (i) {
-
-	    case GTR:
-		i = egetn(p1) > egetn(p2);
-		break;
-
-	    case GTR | 1:
-		i = egetn(p1) >= egetn(p2);
-		break;
-
-	    case LSS:
-		i = egetn(p1) < egetn(p2);
-		break;
-
-	    case LSS | 1:
-		i = egetn(p1) <= egetn(p2);
-		break;
-	    }
-	xfree((ptr_t) p1);
-	xfree((ptr_t) p2);
-	return (putn(i));
-    }
-    return (p1);
-}
-
-static Char *
-exp3a(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    Char *p1, *p2, *op;
-    int i;
-
-    p1 = exp4(vp, ignore);
-#ifdef EDEBUG
-    etracc("exp3a p1", p1, vp);
-#endif
-    op = **vp;
-    if (op && any("<>", op[0]) && op[0] == op[1]) {
-	(*vp)++;
-	p2 = exp3a(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp3a p2", p2, vp);
-#endif
-	if (op[0] == '<')
-	    i = egetn(p1) << egetn(p2);
-	else
-	    i = egetn(p1) >> egetn(p2);
-	xfree((ptr_t) p1);
-	xfree((ptr_t) p2);
-	return (putn(i));
-    }
-    return (p1);
-}
-
-static Char *
-exp4(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    Char *p1, *p2;
-    int i = 0;
-
-    p1 = exp5(vp, ignore);
-#ifdef EDEBUG
-    etracc("exp4 p1", p1, vp);
-#endif
-    if (isa(**vp, ADDOP)) {
-	Char *op = *(*vp)++;
-
-	p2 = exp4(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp4 p2", p2, vp);
-#endif
-	if (!(ignore & IGNORE))
-	    switch (op[0]) {
-
-	    case '+':
-		i = egetn(p1) + egetn(p2);
-		break;
-
-	    case '-':
-		i = egetn(p1) - egetn(p2);
-		break;
-	    }
-	xfree((ptr_t) p1);
-	xfree((ptr_t) p2);
-	return (putn(i));
-    }
-    return (p1);
-}
-
-static Char *
-exp5(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    Char *p1, *p2;
-    int i = 0;
-
-    p1 = exp6(vp, ignore);
-#ifdef EDEBUG
-    etracc("exp5 p1", p1, vp);
-#endif
-    if (isa(**vp, MULOP)) {
-	Char *op = *(*vp)++;
-
-	p2 = exp5(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp5 p2", p2, vp);
-#endif
-	if (!(ignore & IGNORE))
-	    switch (op[0]) {
-
-	    case '*':
-		i = egetn(p1) * egetn(p2);
-		break;
-
-	    case '/':
-		i = egetn(p2);
-		if (i == 0)
-		    stderror(ERR_DIV0);
-		i = egetn(p1) / i;
-		break;
-
-	    case '%':
-		i = egetn(p2);
-		if (i == 0)
-		    stderror(ERR_MOD0);
-		i = egetn(p1) % i;
-		break;
-	    }
-	xfree((ptr_t) p1);
-	xfree((ptr_t) p2);
-	return (putn(i));
-    }
-    return (p1);
-}
-
-static Char *
-exp6(vp, ignore)
-    Char ***vp;
-    bool    ignore;
-{
-    int     ccode, i = 0;
-    Char *cp, *dp, *ep;
-
-    if (**vp == 0)
-	stderror(ERR_NAME | ERR_EXPRESSION);
-    if (eq(**vp, STRbang)) {
-	(*vp)++;
-	cp = exp6(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp6 ! cp", cp, vp);
-#endif
-	i = egetn(cp);
-	xfree((ptr_t) cp);
-	return (putn(!i));
-    }
-    if (eq(**vp, STRtilde)) {
-	(*vp)++;
-	cp = exp6(vp, ignore);
-#ifdef EDEBUG
-	etracc("exp6 ~ cp", cp, vp);
-#endif
-	i = egetn(cp);
-	xfree((ptr_t) cp);
-	return (putn(~i));
-    }
-    if (eq(**vp, STRLparen)) {
-	(*vp)++;
-	ccode = exp0(vp, ignore);
-#ifdef EDEBUG
-	etraci("exp6 () ccode", ccode, vp);
-#endif
-	if (*vp == 0 || **vp == 0 || ***vp != ')')
-	    stderror(ERR_NAME | ERR_EXPRESSION);
-	(*vp)++;
-	return (putn(ccode));
-    }
-    if (eq(**vp, STRLbrace)) {
-	Char **v;
-	struct command faket;
-	Char   *fakecom[2];
-
-	faket.t_dtyp = NODE_COMMAND;
-	faket.t_dflg = 0;
-	faket.t_dcar = faket.t_dcdr = faket.t_dspr = NULL;
-	faket.t_dcom = fakecom;
-	fakecom[0] = STRfakecom;
-	fakecom[1] = NULL;
-	(*vp)++;
-	v = *vp;
-	for (;;) {
-	    if (!**vp)
-		stderror(ERR_NAME | ERR_MISSING, '}');
-	    if (eq(*(*vp)++, STRRbrace))
-		break;
-	}
-	if (ignore & IGNORE)
-	    return (Strsave(STRNULL));
-	psavejob();
-	if (pfork(&faket, -1) == 0) {
-	    *--(*vp) = 0;
-	    evalav(v);
-	    exitstat();
-	}
-	pwait();
-	prestjob();
-#ifdef EDEBUG
-	etraci("exp6 {} status", egetn(value(STRstatus)), vp);
-#endif
-	return (putn(egetn(value(STRstatus)) == 0));
-    }
-    if (isa(**vp, ANYOP))
-	return (Strsave(STRNULL));
-    cp = *(*vp)++;
-    if (*cp == '-' && any("erwxfdzopls", cp[1])) {
-	struct stat stb;
-
-	if (cp[2] != '\0')
-	    stderror(ERR_NAME | ERR_FILEINQ);
-	/*
-	 * Detect missing file names by checking for operator in the file name
-	 * position.  However, if an operator name appears there, we must make
-	 * sure that there's no file by that name (e.g., "/") before announcing
-	 * an error.  Even this check isn't quite right, since it doesn't take
-	 * globbing into account.
-	 */
-	if (isa(**vp, ANYOP) && stat(short2str(**vp), &stb))
-	    stderror(ERR_NAME | ERR_FILENAME);
-
-	dp = *(*vp)++;
-	if (ignore & IGNORE)
-	    return (Strsave(STRNULL));
-	ep = globone(dp, G_ERROR);
-	switch (cp[1]) {
-
-	case 'r':
-	    i = !access(short2str(ep), R_OK);
-	    break;
-
-	case 'w':
-	    i = !access(short2str(ep), W_OK);
-	    break;
-
-	case 'x':
-	    i = !access(short2str(ep), X_OK);
-	    break;
-
-	default:
-	    if (
-#ifdef S_IFLNK
-		cp[1] == 'l' ? lstat(short2str(ep), &stb) :
-#endif
-		stat(short2str(ep), &stb)) {
-		xfree((ptr_t) ep);
-		return (Strsave(STR0));
-	    }
-	    switch (cp[1]) {
-
-	    case 'f':
-		i = S_ISREG(stb.st_mode);
-		break;
-
-	    case 'd':
-		i = S_ISDIR(stb.st_mode);
-		break;
-
-	    case 'p':
-#ifdef S_ISFIFO
-		i = S_ISFIFO(stb.st_mode);
-#else
-		i = 0;
-#endif
-		break;
-
-	    case 'l':
-#ifdef S_ISLNK
-		i = S_ISLNK(stb.st_mode);
-#else
-		i = 0;
-#endif
-		break;
-
-	    case 's':
-#ifdef S_ISSOCK
-		i = S_ISSOCK(stb.st_mode);
-#else
-		i = 0;
-#endif
-		break;
-
-	    case 'z':
-		i = stb.st_size == 0;
-		break;
-
-	    case 'e':
-		i = 1;
-		break;
-
-	    case 'o':
-		i = stb.st_uid == uid;
-		break;
-	    }
-	}
-#ifdef EDEBUG
-	etraci("exp6 -? i", i, vp);
-#endif
-	xfree((ptr_t) ep);
-	return (putn(i));
-    }
-#ifdef EDEBUG
-    etracc("exp6 default", cp, vp);
-#endif
-    return (ignore & NOGLOB ? Strsave(cp) : globone(cp, G_ERROR));
-}
-
-static void
-evalav(v)
-    Char **v;
-{
-    struct wordent paraml1;
-    struct wordent *hp = &paraml1;
-    struct command *t;
-    struct wordent *wdp = hp;
-
-    set(STRstatus, Strsave(STR0));
-    hp->prev = hp->next = hp;
-    hp->word = STRNULL;
-    while (*v) {
-	struct wordent *new =
-	(struct wordent *) xcalloc(1, sizeof *wdp);
-
-	new->prev = wdp;
-	new->next = hp;
-	wdp->next = new;
-	wdp = new;
-	wdp->word = Strsave(*v++);
-    }
-    hp->prev = wdp;
-    alias(&paraml1);
-    t = syntax(paraml1.next, &paraml1, 0);
-    if (seterr)
-	stderror(ERR_OLD);
-    execute(t, -1, NULL, NULL);
-    freelex(&paraml1), freesyn(t);
-}
-
-static int
-isa(cp, what)
-    Char *cp;
-    int what;
-{
-    if (cp == 0)
-	return ((what & RESTOP) != 0);
-    if (cp[1] == 0) {
-	if (what & ADDOP && (*cp == '+' || *cp == '-'))
-	    return (1);
-	if (what & MULOP && (*cp == '*' || *cp == '/' || *cp == '%'))
-	    return (1);
-	if (what & RESTOP && (*cp == '(' || *cp == ')' || *cp == '!' ||
-			      *cp == '~' || *cp == '^' || *cp == '"'))
-	    return (1);
-    }
-    else if (cp[2] == 0) {
-	if (what & RESTOP) {
-	    if (cp[0] == '|' && cp[1] == '&')
-		return (1);
-	    if (cp[0] == '<' && cp[1] == '<')
-		return (1);
-	    if (cp[0] == '>' && cp[1] == '>')
-		return (1);
-	}
-	if (what & EQOP) {
-	    if (cp[0] == '=') {
-		if (cp[1] == '=')
-		    return (EQEQ);
-		if (cp[1] == '~')
-		    return (EQMATCH);
-	    }
-	    else if (cp[0] == '!') {
-		if (cp[1] == '=')
-		    return (NOTEQ);
-		if (cp[1] == '~')
-		    return (NOTEQMATCH);
-	    }
-	}
-    }
-    if (what & RELOP) {
-	if (*cp == '<')
-	    return (LSS);
-	if (*cp == '>')
-	    return (GTR);
-    }
-    return (0);
-}
-
-static int
-egetn(cp)
-    Char *cp;
-{
-    if (*cp && *cp != '-' && !Isdigit(*cp))
-	stderror(ERR_NAME | ERR_EXPRESSION);
-    return (getn(cp));
-}
-
-/* Phew! */
-
-#ifdef EDEBUG
-static void
-etraci(str, i, vp)
-    char   *str;
-    int     i;
-    Char ***vp;
-{
-    (void) fprintf(csherr, "%s=%d\t", str, i);
-    blkpr(csherr, *vp);
-    (void) fprintf(csherr, "\n");
-}
-static void
-etracc(str, cp, vp)
-    char   *str;
-    Char   *cp;
-    Char ***vp;
-{
-    (void) fprintf(csherr, "%s=%s\t", str, vis_str(cp));
-    blkpr(csherr, *vp);
-    (void) fprintf(csherr, "\n");
-}
-#endif
@@ -1,339 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)extern.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-#include <sys/cdefs.h>
-
-/*
- * csh.c
- */
-int	gethdir __P((Char *));
-void	dosource __P((Char **, struct command *));
-void	exitstat __P((void));
-void	goodbye __P((void));
-void	importpath __P((Char *));
-void	initdesc __P((void));
-void	pintr __P((int));
-void	pintr1 __P((bool));
-void	printprompt __P((void));
-void	process __P((bool));
-void	rechist __P((void));
-void	untty __P((void));
-int	vis_fputc __P((int, FILE *));
-
-#ifdef PROF
-void done __P((int));
-#else
-void xexit __P((int));
-#endif
-
-/*
- * dir.c
- */
-void	 dinit __P((Char *));
-void	 dodirs __P((Char **, struct command *));
-Char	*dcanon __P((Char *, Char *));
-void	 dtildepr __P((Char *, Char *));
-void	 dtilde __P((void));
-void	 dochngd __P((Char **, struct command *));
-Char	*dnormalize __P((Char *));
-void	 dopushd __P((Char **, struct command *));
-void	 dopopd __P((Char **, struct command *));
-struct directory;
-void	 dfree __P((struct directory *));
-
-/*
- * dol.c
- */
-void	 Dfix __P((struct command *));
-Char	*Dfix1 __P((Char *));
-void	 heredoc __P((Char *));
-
-/*
- * err.c
- */
-void	seterror __P((int, ...));
-void	stderror __P((int, ...));
-
-/*
- * exec.c
- */
-void	doexec __P((Char **, struct command *));
-void	dohash __P((Char **, struct command *));
-void	dounhash __P((Char **, struct command *));
-void	dowhich __P((Char **, struct command *));
-void	execash __P((Char **, struct command *));
-void	hashstat __P((Char **, struct command *));
-void	xechoit __P((Char **));
-
-/*
- * exp.c
- */
-int	expr __P((Char ***));
-int	exp0 __P((Char ***, bool));
-
-/*
- * file.c
- */
-#ifdef FILEC
-int	tenex __P((Char *, int));
-#endif
-
-/*
- * func.c
- */
-void	Setenv __P((Char *, Char *));
-void	doalias __P((Char **, struct command *));
-void	dobreak __P((Char **, struct command *));
-void	docontin __P((Char **, struct command *));
-void	doecho __P((Char **, struct command *));
-void	doelse __P((Char **, struct command *));
-void	doend __P((Char **, struct command *));
-void	doeval __P((Char **, struct command *));
-void	doexit __P((Char **, struct command *));
-void	doforeach __P((Char **, struct command *));
-void	doglob __P((Char **, struct command *));
-void	dogoto __P((Char **, struct command *));
-void	doif __P((Char **, struct command *));
-void	dolimit __P((Char **, struct command *));
-void	dologin __P((Char **, struct command *));
-void	dologout __P((Char **, struct command *));
-void	donohup __P((Char **, struct command *));
-void	doonintr __P((Char **, struct command *));
-void	doprintf __P((Char **, struct command *));
-void	dorepeat __P((Char **, struct command *));
-void	dosetenv __P((Char **, struct command *));
-void	dosuspend __P((Char **, struct command *));
-void	doswbrk __P((Char **, struct command *));
-void	doswitch __P((Char **, struct command *));
-void	doumask __P((Char **, struct command *));
-void	dounlimit __P((Char **, struct command *));
-void	dounsetenv __P((Char **, struct command *));
-void	dowhile __P((Char **, struct command *));
-void	dozip __P((Char **, struct command *));
-void	func __P((struct command *, struct biltins *));
-struct	biltins *
-	isbfunc __P((struct command *));
-void	prvars __P((void));
-void	gotolab __P((Char *));
-int	srchx __P((Char *));
-void	unalias __P((Char **, struct command *));
-void	wfree __P((void));
-
-/*
- * glob.c
- */
-Char	**dobackp __P((Char *, bool));
-void	  Gcat __P((Char *, Char *));
-Char	 *globone __P((Char *, int));
-int	  Gmatch __P((Char *, Char *));
-void	  ginit __P((void));
-Char	**globall __P((Char **));
-void	  rscan __P((Char **, void (*)(int)));
-void	  tglob __P((Char **));
-void	  trim __P((Char **));
-#ifdef FILEC
-int	  sortscmp __P((const ptr_t, const ptr_t));
-#endif /* FILEC */
-
-/*
- * hist.c
- */
-void	dohist __P((Char **, struct command *));
-struct Hist *
-	enthist __P((int, struct wordent *, bool));
-void	savehist __P((struct wordent *));
-
-/*
- * lex.c
- */
-void	 addla __P((Char *));
-void	 bseek __P((struct Ain *));
-void	 btell __P((struct Ain *));
-void	 btoeof __P((void));
-void	 copylex __P((struct wordent *, struct wordent *));
-Char	*domod __P((Char *, int));
-void	 freelex __P((struct wordent *));
-int	 lex __P((struct wordent *));
-void	 prlex __P((FILE *, struct wordent *));
-int	 readc __P((bool));
-void	 settell __P((void));
-void	 unreadc __P((int));
-
-/*
- * misc.c
- */
-int	  any __P((char *, int));
-Char	**blkcat __P((Char **, Char **));
-Char	**blkcpy __P((Char **, Char **));
-Char	**blkend __P((Char **));
-void	  blkfree __P((Char **));
-int	  blklen __P((Char **));
-void	  blkpr __P((FILE *, Char **));
-Char	**blkspl __P((Char **, Char **));
-void	  closem __P((void));
-Char	**copyblk __P((Char **));
-int	  dcopy __P((int, int));
-int	  dmove __P((int, int));
-void	  donefds __P((void));
-Char	  lastchr __P((Char *));
-void	  lshift __P((Char **, int));
-int	  number __P((Char *));
-int	  prefix __P((Char *, Char *));
-Char	**saveblk __P((Char **));
-void	  setzero __P((char *, int));
-Char	 *strip __P((Char *));
-char	 *strsave __P((char *));
-char	 *strspl __P((char *, char *));
-void	  udvar __P((Char *));
-
-#ifndef	SHORT_STRINGS
-# ifdef NOTUSED
-char	 *strstr __P((const char *, const char *));
-# endif /* NOTUSED */
-char	 *strend __P((char *));
-#endif
-
-/*
- * parse.c
- */
-void	alias __P((struct wordent *));
-void	freesyn __P((struct command *));
-struct command *
-	syntax __P((struct wordent *, struct wordent *, int));
-
-
-/*
- * proc.c
- */
-void	dobg __P((Char **, struct command *));
-void	dobg1 __P((Char **, struct command *));
-void	dofg __P((Char **, struct command *));
-void	dofg1 __P((Char **, struct command *));
-void	dojobs __P((Char **, struct command *));
-void	dokill __P((Char **, struct command *));
-void	donotify __P((Char **, struct command *));
-void	dostop __P((Char **, struct command *));
-void	dowait __P((Char **, struct command *));
-void	palloc __P((int, struct command *));
-void	panystop __P((bool));
-void	pchild __P((int));
-void	pendjob __P((void));
-struct process *
-	pfind __P((Char *));
-int	pfork __P((struct command *, int));
-void	pgetty __P((int, int));
-void	pjwait __P((struct process *));
-void	pnote __P((void));
-void	prestjob __P((void));
-void	psavejob __P((void));
-void	pstart __P((struct process *, int));
-void	pwait __P((void));
-
-/*
- * sem.c
- */
-void	execute __P((struct command *, int, int *, int *));
-void	mypipe __P((int *));
-
-/*
- * set.c
- */
-struct	varent
-	*adrof1 __P((Char *, struct varent *));
-void	 doset __P((Char **, struct command *));
-void	 dolet __P((Char **, struct command *));
-Char	*putn __P((int));
-int	 getn __P((Char *));
-Char	*value1 __P((Char *, struct varent *));
-void	 set __P((Char *, Char *));
-void	 set1 __P((Char *, Char **, struct varent *));
-void	 setq __P((Char *, Char **, struct varent *));
-void	 unset __P((Char **, struct command *));
-void	 unset1 __P((Char *[], struct varent *));
-void	 unsetv __P((Char *));
-void	 setNS __P((Char *));
-void	 shift __P((Char **, struct command *));
-void	 plist __P((struct varent *));
-
-/*
- * time.c
- */
-void	donice __P((Char **, struct command *));
-void	dotime __P((Char **, struct command *));
-void	prusage __P((struct rusage *, struct rusage *,
-	    struct timeval *, struct timeval *));
-void	ruadd __P((struct rusage *, struct rusage *));
-void	settimes __P((void));
-void	tvadd __P((struct timeval *, struct timeval *));
-void	tvsub __P((struct timeval *, struct timeval *, struct timeval *));
-void	pcsecs __P((long));
-void	psecs __P((long));
-
-/*
- * alloc.c
- */
-void	Free __P((ptr_t));
-ptr_t	Malloc __P((size_t));
-ptr_t	Realloc __P((ptr_t, size_t));
-ptr_t	Calloc __P((size_t, size_t));
-void	showall __P((Char **, struct command *));
-
-/*
- * str.c:
- */
-#ifdef SHORT_STRINGS
-Char	 *s_strchr __P((Char *, int));
-Char	 *s_strrchr __P((Char *, int));
-Char	 *s_strcat __P((Char *, Char *));
-#ifdef NOTUSED
-Char	 *s_strncat __P((Char *, Char *, size_t));
-#endif
-Char	 *s_strcpy __P((Char *, Char *));
-Char	 *s_strncpy __P((Char *, Char *, size_t));
-Char	 *s_strspl __P((Char *, Char *));
-size_t	  s_strlen __P((Char *));
-int	  s_strcmp __P((Char *, Char *));
-int	  s_strncmp __P((Char *, Char *, size_t));
-Char	 *s_strsave __P((Char *));
-Char	 *s_strend __P((Char *));
-Char	 *s_strstr __P((Char *, Char *));
-Char	 *str2short __P((char *));
-Char	**blk2short __P((char **));
-char	 *short2str __P((Char *));
-char	**short2blk __P((Char **));
-#endif
-char	 *short2qstr __P((Char *));
-char	 *vis_str    __P((Char *));
@@ -1,685 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)file.c	8.2 (Berkeley) 3/19/94";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#ifdef FILEC
-
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <termios.h>
-#include <dirent.h>
-#include <pwd.h>
-#include <stdlib.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-/*
- * Tenex style file name recognition, .. and more.
- * History:
- *	Author: Ken Greer, Sept. 1975, CMU.
- *	Finally got around to adding to the Cshell., Ken Greer, Dec. 1981.
- */
-
-#define ON	1
-#define OFF	0
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#define ESC	'\033'
-
-typedef enum {
-    LIST, RECOGNIZE
-}       COMMAND;
-
-static void	 setup_tty __P((int));
-static void	 back_to_col_1 __P((void));
-static void	 pushback __P((Char *));
-static void	 catn __P((Char *, Char *, int));
-static void	 copyn __P((Char *, Char *, int));
-static Char	 filetype __P((Char *, Char *));
-static void	 print_by_column __P((Char *, Char *[], int));
-static Char	*tilde __P((Char *, Char *));
-static void	 retype __P((void));
-static void	 beep __P((void));
-static void	 print_recognized_stuff __P((Char *));
-static void	 extract_dir_and_name __P((Char *, Char *, Char *));
-static Char	*getentry __P((DIR *, int));
-static void	 free_items __P((Char **));
-static int	 tsearch __P((Char *, COMMAND, int));
-static int	 recognize __P((Char *, Char *, int, int));
-static int	 is_prefix __P((Char *, Char *));
-static int	 is_suffix __P((Char *, Char *));
-static int	 ignored __P((Char *));
-
-/*
- * Put this here so the binary can be patched with adb to enable file
- * completion by default.  Filec controls completion, nobeep controls
- * ringing the terminal bell on incomplete expansions.
- */
-bool    filec = 0;
-
-static void
-setup_tty(on)
-    int     on;
-{
-    struct termios tchars;
-
-    (void) tcgetattr(SHIN, &tchars);
-
-    if (on) {
-	tchars.c_cc[VEOL] = ESC;
-	if (tchars.c_lflag & ICANON)
-	    on = TCSADRAIN;
-	else {
-	    on = TCSAFLUSH;
-	    tchars.c_lflag |= ICANON;
-	}
-    }
-    else {
-	tchars.c_cc[VEOL] = _POSIX_VDISABLE;
-	on = TCSADRAIN;
-    }
-
-    (void) tcsetattr(SHIN, on, &tchars);
-}
-
-/*
- * Move back to beginning of current line
- */
-static void
-back_to_col_1()
-{
-    struct termios tty, tty_normal;
-    int     omask;
-
-    omask = sigblock(sigmask(SIGINT));
-    (void) tcgetattr(SHOUT, &tty);
-    tty_normal = tty;
-    tty.c_iflag &= ~INLCR;
-    tty.c_oflag &= ~ONLCR;
-    (void) tcsetattr(SHOUT, TCSANOW, &tty);
-    (void) write(SHOUT, "\r", 1);
-    (void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
-    (void) sigsetmask(omask);
-}
-
-/*
- * Push string contents back into tty queue
- */
-static void
-pushback(string)
-    Char   *string;
-{
-    Char *p;
-    struct termios tty, tty_normal;
-    int     omask;
-    char    c;
-
-    omask = sigblock(sigmask(SIGINT));
-    (void) tcgetattr(SHOUT, &tty);
-    tty_normal = tty;
-    tty.c_lflag &= ~(ECHOKE | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL);
-    (void) tcsetattr(SHOUT, TCSANOW, &tty);
-
-    for (p = string; (c = *p) != '\0'; p++)
-	(void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c);
-    (void) tcsetattr(SHOUT, TCSANOW, &tty_normal);
-    (void) sigsetmask(omask);
-}
-
-/*
- * Concatenate src onto tail of des.
- * Des is a string whose maximum length is count.
- * Always null terminate.
- */
-static void
-catn(des, src, count)
-    Char *des, *src;
-    int count;
-{
-    while (--count >= 0 && *des)
-	des++;
-    while (--count >= 0)
-	if ((*des++ = *src++) == 0)
-	    return;
-    *des = '\0';
-}
-
-/*
- * Like strncpy but always leave room for trailing \0
- * and always null terminate.
- */
-static void
-copyn(des, src, count)
-    Char *des, *src;
-    int count;
-{
-    while (--count >= 0)
-	if ((*des++ = *src++) == 0)
-	    return;
-    *des = '\0';
-}
-
-static  Char
-filetype(dir, file)
-    Char   *dir, *file;
-{
-    Char    path[MAXPATHLEN];
-    struct stat statb;
-
-    catn(Strcpy(path, dir), file, sizeof(path) / sizeof(Char));
-    if (lstat(short2str(path), &statb) == 0) {
-	switch (statb.st_mode & S_IFMT) {
-	case S_IFDIR:
-	    return ('/');
-
-	case S_IFLNK:
-	    if (stat(short2str(path), &statb) == 0 &&	/* follow it out */
-		S_ISDIR(statb.st_mode))
-		return ('>');
-	    else
-		return ('@');
-
-	case S_IFSOCK:
-	    return ('=');
-
-	default:
-	    if (statb.st_mode & 0111)
-		return ('*');
-	}
-    }
-    return (' ');
-}
-
-static struct winsize win;
-
-/*
- * Print sorted down columns
- */
-static void
-print_by_column(dir, items, count)
-    Char   *dir, *items[];
-    int     count;
-{
-    int i, rows, r, c, maxwidth = 0, columns;
-
-    if (ioctl(SHOUT, TIOCGWINSZ, (ioctl_t) & win) < 0 || win.ws_col == 0)
-	win.ws_col = 80;
-    for (i = 0; i < count; i++)
-	maxwidth = maxwidth > (r = Strlen(items[i])) ? maxwidth : r;
-    maxwidth += 2;		/* for the file tag and space */
-    columns = win.ws_col / maxwidth;
-    if (columns == 0)
-	columns = 1;
-    rows = (count + (columns - 1)) / columns;
-    for (r = 0; r < rows; r++) {
-	for (c = 0; c < columns; c++) {
-	    i = c * rows + r;
-	    if (i < count) {
-		int w;
-
-		(void) fprintf(cshout, "%s", vis_str(items[i]));
-		(void) fputc(dir ? filetype(dir, items[i]) : ' ', cshout);
-		if (c < columns - 1) {	/* last column? */
-		    w = Strlen(items[i]) + 1;
-		    for (; w < maxwidth; w++)
-			(void) fputc(' ', cshout);
-		}
-	    }
-	}
-	(void) fputc('\r', cshout);
-	(void) fputc('\n', cshout);
-    }
-}
-
-/*
- * Expand file name with possible tilde usage
- *	~person/mumble
- * expands to
- *	home_directory_of_person/mumble
- */
-static Char *
-tilde(new, old)
-    Char   *new, *old;
-{
-    Char *o, *p;
-    struct passwd *pw;
-    static Char person[40];
-
-    if (old[0] != '~')
-	return (Strcpy(new, old));
-
-    for (p = person, o = &old[1]; *o && *o != '/'; *p++ = *o++)
-	continue;
-    *p = '\0';
-    if (person[0] == '\0')
-	(void) Strcpy(new, value(STRhome));
-    else {
-	pw = getpwnam(short2str(person));
-	if (pw == NULL)
-	    return (NULL);
-	(void) Strcpy(new, str2short(pw->pw_dir));
-    }
-    (void) Strcat(new, o);
-    return (new);
-}
-
-/*
- * Cause pending line to be printed
- */
-static void
-retype()
-{
-    struct termios tty;
-
-    (void) tcgetattr(SHOUT, &tty);
-    tty.c_lflag |= PENDIN;
-    (void) tcsetattr(SHOUT, TCSANOW, &tty);
-}
-
-static void
-beep()
-{
-    if (adrof(STRnobeep) == 0)
-	(void) write(SHOUT, "\007", 1);
-}
-
-/*
- * Erase that silly ^[ and
- * print the recognized part of the string
- */
-static void
-print_recognized_stuff(recognized_part)
-    Char   *recognized_part;
-{
-    /* An optimized erasing of that silly ^[ */
-    (void) fputc('\b', cshout);
-    (void) fputc('\b', cshout);
-    switch (Strlen(recognized_part)) {
-
-    case 0:			/* erase two Characters: ^[ */
-	(void) fputc(' ', cshout);
-	(void) fputc(' ', cshout);
-	(void) fputc('\b', cshout);
-	(void) fputc('\b', cshout);
-	break;
-
-    case 1:			/* overstrike the ^, erase the [ */
-	(void) fprintf(cshout, "%s", vis_str(recognized_part));
-	(void) fputc(' ', cshout);
-	(void) fputc('\b', cshout);
-	break;
-
-    default:			/* overstrike both Characters ^[ */
-	(void) fprintf(cshout, "%s", vis_str(recognized_part));
-	break;
-    }
-    (void) fflush(cshout);
-}
-
-/*
- * Parse full path in file into 2 parts: directory and file names
- * Should leave final slash (/) at end of dir.
- */
-static void
-extract_dir_and_name(path, dir, name)
-    Char   *path, *dir, *name;
-{
-    Char *p;
-
-    p = Strrchr(path, '/');
-    if (p == NULL) {
-	copyn(name, path, MAXNAMLEN);
-	dir[0] = '\0';
-    }
-    else {
-	copyn(name, ++p, MAXNAMLEN);
-	copyn(dir, path, p - path);
-    }
-}
-
-static Char *
-getentry(dir_fd, looking_for_lognames)
-    DIR    *dir_fd;
-    int     looking_for_lognames;
-{
-    struct passwd *pw;
-    struct dirent *dirp;
-
-    if (looking_for_lognames) {
-	if ((pw = getpwent()) == NULL)
-	    return (NULL);
-	return (str2short(pw->pw_name));
-    }
-    if ((dirp = readdir(dir_fd)) != NULL)
-	return (str2short(dirp->d_name));
-    return (NULL);
-}
-
-static void
-free_items(items)
-    Char **items;
-{
-    int i;
-
-    for (i = 0; items[i]; i++)
-	xfree((ptr_t) items[i]);
-    xfree((ptr_t) items);
-}
-
-#define FREE_ITEMS(items) { \
-	int omask;\
-\
-	omask = sigblock(sigmask(SIGINT));\
-	free_items(items);\
-	items = NULL;\
-	(void) sigsetmask(omask);\
-}
-
-/*
- * Perform a RECOGNIZE or LIST command on string "word".
- */
-static int
-tsearch(word, command, max_word_length)
-    Char   *word;
-    COMMAND command;
-    int     max_word_length;
-{
-    static Char **items = NULL;
-    DIR *dir_fd;
-    int numitems = 0, ignoring = TRUE, nignored = 0;
-    int name_length, looking_for_lognames;
-    Char    tilded_dir[MAXPATHLEN + 1], dir[MAXPATHLEN + 1];
-    Char    name[MAXNAMLEN + 1], extended_name[MAXNAMLEN + 1];
-    Char   *entry;
-
-#define MAXITEMS 1024
-
-    if (items != NULL)
-	FREE_ITEMS(items);
-
-    looking_for_lognames = (*word == '~') && (Strchr(word, '/') == NULL);
-    if (looking_for_lognames) {
-	setpwent();
-	copyn(name, &word[1], MAXNAMLEN);	/* name sans ~ */
-	dir_fd = NULL;
-    }
-    else {
-	extract_dir_and_name(word, dir, name);
-	if (tilde(tilded_dir, dir) == 0)
-	    return (0);
-	dir_fd = opendir(*tilded_dir ? short2str(tilded_dir) : ".");
-	if (dir_fd == NULL)
-	    return (0);
-    }
-
-again:				/* search for matches */
-    name_length = Strlen(name);
-    for (numitems = 0; (entry = getentry(dir_fd, looking_for_lognames)) != NULL;) {
-	if (!is_prefix(name, entry))
-	    continue;
-	/* Don't match . files on null prefix match */
-	if (name_length == 0 && entry[0] == '.' &&
-	    !looking_for_lognames)
-	    continue;
-	if (command == LIST) {
-	    if (numitems >= MAXITEMS) {
-		(void) fprintf(csherr, "\nYikes!! Too many %s!!\n",
-			       looking_for_lognames ?
-			       "names in password file" : "files");
-		break;
-	    }
-	    if (items == NULL)
-		items = (Char **) xcalloc(sizeof(items[0]), MAXITEMS);
-	    items[numitems] = (Char *) xmalloc((size_t) (Strlen(entry) + 1) *
-					       sizeof(Char));
-	    copyn(items[numitems], entry, MAXNAMLEN);
-	    numitems++;
-	}
-	else {			/* RECOGNIZE command */
-	    if (ignoring && ignored(entry))
-		nignored++;
-	    else if (recognize(extended_name,
-			       entry, name_length, ++numitems))
-		break;
-	}
-    }
-    if (ignoring && numitems == 0 && nignored > 0) {
-	ignoring = FALSE;
-	nignored = 0;
-	if (looking_for_lognames)
-	    setpwent();
-	else
-	    rewinddir(dir_fd);
-	goto again;
-    }
-
-    if (looking_for_lognames)
-	(void) endpwent();
-    else
-	(void) closedir(dir_fd);
-    if (numitems == 0)
-	return (0);
-    if (command == RECOGNIZE) {
-	if (looking_for_lognames)
-	    copyn(word, STRtilde, 1);
-	else
-	    /* put back dir part */
-	    copyn(word, dir, max_word_length);
-	/* add extended name */
-	catn(word, extended_name, max_word_length);
-	return (numitems);
-    }
-    else {			/* LIST */
-	qsort((ptr_t) items, numitems, sizeof(items[0]),
-		(int (*) __P((const void *, const void *))) sortscmp);
-	print_by_column(looking_for_lognames ? NULL : tilded_dir,
-			items, numitems);
-	if (items != NULL)
-	    FREE_ITEMS(items);
-    }
-    return (0);
-}
-
-/*
- * Object: extend what user typed up to an ambiguity.
- * Algorithm:
- * On first match, copy full entry (assume it'll be the only match)
- * On subsequent matches, shorten extended_name to the first
- * Character mismatch between extended_name and entry.
- * If we shorten it back to the prefix length, stop searching.
- */
-static int
-recognize(extended_name, entry, name_length, numitems)
-    Char   *extended_name, *entry;
-    int     name_length, numitems;
-{
-    if (numitems == 1)		/* 1st match */
-	copyn(extended_name, entry, MAXNAMLEN);
-    else {			/* 2nd & subsequent matches */
-	Char *x, *ent;
-	int len = 0;
-
-	x = extended_name;
-	for (ent = entry; *x && *x == *ent++; x++, len++)
-	    continue;
-	*x = '\0';		/* Shorten at 1st Char diff */
-	if (len == name_length)	/* Ambiguous to prefix? */
-	    return (-1);	/* So stop now and save time */
-    }
-    return (0);
-}
-
-/*
- * Return true if check matches initial Chars in template.
- * This differs from PWB imatch in that if check is null
- * it matches anything.
- */
-static int
-is_prefix(check, template)
-    Char *check, *template;
-{
-    do
-	if (*check == 0)
-	    return (TRUE);
-    while (*check++ == *template++);
-    return (FALSE);
-}
-
-/*
- *  Return true if the Chars in template appear at the
- *  end of check, I.e., are it's suffix.
- */
-static int
-is_suffix(check, template)
-    Char   *check, *template;
-{
-    Char *c, *t;
-
-    for (c = check; *c++;)
-	continue;
-    for (t = template; *t++;)
-	continue;
-    for (;;) {
-	if (t == template)
-	    return 1;
-	if (c == check || *--t != *--c)
-	    return 0;
-    }
-}
-
-int
-tenex(inputline, inputline_size)
-    Char   *inputline;
-    int     inputline_size;
-{
-    int numitems, num_read;
-    char    tinputline[BUFSIZ];
-
-
-    setup_tty(ON);
-
-    while ((num_read = read(SHIN, tinputline, BUFSIZ)) > 0) {
-	int     i;
-	static Char delims[] = {' ', '\'', '"', '\t', ';', '&', '<',
-	'>', '(', ')', '|', '^', '%', '\0'};
-	Char *str_end, *word_start, last_Char, should_retype;
-	int space_left;
-	COMMAND command;
-
-	for (i = 0; i < num_read; i++)
-	    inputline[i] = (unsigned char) tinputline[i];
-	last_Char = inputline[num_read - 1] & ASCII;
-
-	if (last_Char == '\n' || num_read == inputline_size)
-	    break;
-	command = (last_Char == ESC) ? RECOGNIZE : LIST;
-	if (command == LIST)
-	    (void) fputc('\n', cshout);
-	str_end = &inputline[num_read];
-	if (last_Char == ESC)
-	    --str_end;		/* wipeout trailing cmd Char */
-	*str_end = '\0';
-	/*
-	 * Find LAST occurence of a delimiter in the inputline. The word start
-	 * is one Character past it.
-	 */
-	for (word_start = str_end; word_start > inputline; --word_start)
-	    if (Strchr(delims, word_start[-1]))
-		break;
-	space_left = inputline_size - (word_start - inputline) - 1;
-	numitems = tsearch(word_start, command, space_left);
-
-	if (command == RECOGNIZE) {
-	    /* print from str_end on */
-	    print_recognized_stuff(str_end);
-	    if (numitems != 1)	/* Beep = No match/ambiguous */
-		beep();
-	}
-
-	/*
-	 * Tabs in the input line cause trouble after a pushback. tty driver
-	 * won't backspace over them because column positions are now
-	 * incorrect. This is solved by retyping over current line.
-	 */
-	should_retype = FALSE;
-	if (Strchr(inputline, '\t')) {	/* tab Char in input line? */
-	    back_to_col_1();
-	    should_retype = TRUE;
-	}
-	if (command == LIST)	/* Always retype after a LIST */
-	    should_retype = TRUE;
-	if (should_retype)
-	    printprompt();
-	pushback(inputline);
-	if (should_retype)
-	    retype();
-    }
-    setup_tty(OFF);
-    return (num_read);
-}
-
-static int
-ignored(entry)
-    Char *entry;
-{
-    struct varent *vp;
-    Char **cp;
-
-    if ((vp = adrof(STRfignore)) == NULL || (cp = vp->vec) == NULL)
-	return (FALSE);
-    for (; *cp != NULL; cp++)
-	if (is_suffix(entry, *cp))
-	    return (TRUE);
-    return (FALSE);
-}
-#endif				/* FILEC */
@@ -1,961 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)glob.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <glob.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-static int noglob;
-static int pargsiz, gargsiz;
-
-/*
- * Values for gflag
- */
-#define	G_NONE	0		/* No globbing needed			*/
-#define	G_GLOB	1		/* string contains *?[] characters	*/
-#define	G_CSH	2		/* string contains ~`{ characters	*/
-
-#define	GLOBSPACE	100	/* Alloc increment			*/
-
-#define LBRC '{'
-#define RBRC '}'
-#define LBRK '['
-#define RBRK ']'
-#define EOS '\0'
-
-Char  **gargv = NULL;
-long    gargc = 0;
-Char  **pargv = NULL;
-long    pargc = 0;
-
-/*
- * globbing is now done in two stages. In the first pass we expand
- * csh globbing idioms ~`{ and then we proceed doing the normal
- * globbing if needed ?*[
- *
- * Csh type globbing is handled in globexpand() and the rest is
- * handled in glob() which is part of the 4.4BSD libc.
- *
- */
-static Char	*globtilde __P((Char **, Char *));
-static Char	**libglob __P((Char **));
-static Char	**globexpand __P((Char **));
-static int	globbrace __P((Char *, Char *, Char ***));
-static void	expbrace __P((Char ***, Char ***, int));
-static int	pmatch __P((Char *, Char *));
-static void	pword __P((void));
-static void	psave __P((int));
-static void	backeval __P((Char *, bool));
-static int      collate_range_cmp __P((int, int));
-
-static int collate_range_cmp (c1, c2)
-	int c1, c2;
-{
-	static char s1[2], s2[2];
-	int ret;
-
-	c1 &= UCHAR_MAX;
-	c2 &= UCHAR_MAX;
-	if (c1 == c2)
-		return (0);
-	s1[0] = c1;
-	s2[0] = c2;
-	if ((ret = strcoll(s1, s2)) != 0)
-		return (ret);
-	return (c1 - c2);
-}
-
-static Char *
-globtilde(nv, s)
-    Char  **nv, *s;
-{
-    Char    gbuf[MAXPATHLEN], *gstart, *b, *u, *e;
-
-    gstart = gbuf;
-    *gstart++ = *s++;
-    u = s;
-    for (b = gstart, e = &gbuf[MAXPATHLEN - 1];
-	 *s && *s != '/' && *s != ':' && b < e;
-	 *b++ = *s++)
-	 continue;
-    *b = EOS;
-    if (gethdir(gstart)) {
-	blkfree(nv);
-	if (*gstart)
-	    stderror(ERR_UNKUSER, vis_str(gstart));
-	else
-	    stderror(ERR_NOHOME);
-    }
-    b = &gstart[Strlen(gstart)];
-    while (*s)
-	*b++ = *s++;
-    *b = EOS;
-    --u;
-    xfree((ptr_t) u);
-    return (Strsave(gstart));
-}
-
-static int
-globbrace(s, p, bl)
-    Char   *s, *p, ***bl;
-{
-    int     i, len;
-    Char   *pm, *pe, *lm, *pl;
-    Char  **nv, **vl;
-    Char    gbuf[MAXPATHLEN];
-    int     size = GLOBSPACE;
-
-    nv = vl = (Char **) xmalloc((size_t) sizeof(Char *) * size);
-    *vl = NULL;
-
-    len = 0;
-    /* copy part up to the brace */
-    for (lm = gbuf, p = s; *p != LBRC; *lm++ = *p++)
-	continue;
-
-    /* check for balanced braces */
-    for (i = 0, pe = ++p; *pe; pe++)
-	if (*pe == LBRK) {
-	    /* Ignore everything between [] */
-	    for (++pe; *pe != RBRK && *pe != EOS; pe++)
-		continue;
-	    if (*pe == EOS) {
-		blkfree(nv);
-		return (-RBRK);
-	    }
-	}
-	else if (*pe == LBRC)
-	    i++;
-	else if (*pe == RBRC) {
-	    if (i == 0)
-		break;
-	    i--;
-	}
-
-    if (i != 0 || *pe == '\0') {
-	blkfree(nv);
-	return (-RBRC);
-    }
-
-    for (i = 0, pl = pm = p; pm <= pe; pm++)
-	switch (*pm) {
-	case LBRK:
-	    for (++pm; *pm != RBRK && *pm != EOS; pm++)
-		continue;
-	    if (*pm == EOS) {
-		*vl = NULL;
-		blkfree(nv);
-		return (-RBRK);
-	    }
-	    break;
-	case LBRC:
-	    i++;
-	    break;
-	case RBRC:
-	    if (i) {
-		i--;
-		break;
-	    }
-	    /* FALLTHROUGH */
-	case ',':
-	    if (i && *pm == ',')
-		break;
-	    else {
-		Char    savec = *pm;
-
-		*pm = EOS;
-		(void) Strcpy(lm, pl);
-		(void) Strcat(gbuf, pe + 1);
-		*pm = savec;
-		*vl++ = Strsave(gbuf);
-		len++;
-		pl = pm + 1;
-		if (vl == &nv[size]) {
-		    size += GLOBSPACE;
-		    nv = (Char **) xrealloc((ptr_t) nv, (size_t)
-					    size * sizeof(Char *));
-		    vl = &nv[size - GLOBSPACE];
-		}
-	    }
-	    break;
-	default:
-	    break;
-	}
-    *vl = NULL;
-    *bl = nv;
-    return (len);
-}
-
-
-static void
-expbrace(nvp, elp, size)
-    Char ***nvp, ***elp;
-    int size;
-{
-    Char **vl, **el, **nv, *s;
-
-    vl = nv = *nvp;
-    if (elp != NULL)
-	el = *elp;
-    else
-	for (el = vl; *el; el++)
-	    continue;
-
-    for (s = *vl; s; s = *++vl) {
-	Char   *b;
-	Char  **vp, **bp;
-
-	/* leave {} untouched for find */
-	if (s[0] == '{' && (s[1] == '\0' || (s[1] == '}' && s[2] == '\0')))
-	    continue;
-	if ((b = Strchr(s, '{')) != NULL) {
-	    Char  **bl;
-	    int     len;
-
-	    if ((len = globbrace(s, b, &bl)) < 0) {
-		xfree((ptr_t) nv);
-		stderror(ERR_MISSING, -len);
-	    }
-	    xfree((ptr_t) s);
-	    if (len == 1) {
-		*vl-- = *bl;
-		xfree((ptr_t) bl);
-		continue;
-	    }
-	    len = blklen(bl);
-	    if (&el[len] >= &nv[size]) {
-		int     l, e;
-
-		l = &el[len] - &nv[size];
-		size += GLOBSPACE > l ? GLOBSPACE : l;
-		l = vl - nv;
-		e = el - nv;
-		nv = (Char **) xrealloc((ptr_t) nv, (size_t)
-					size * sizeof(Char *));
-		vl = nv + l;
-		el = nv + e;
-	    }
-	    vp = vl--;
-	    *vp = *bl;
-	    len--;
-	    for (bp = el; bp != vp; bp--)
-		bp[len] = *bp;
-	    el += len;
-	    vp++;
-	    for (bp = bl + 1; *bp; *vp++ = *bp++)
-		continue;
-	    xfree((ptr_t) bl);
-	}
-
-    }
-    if (elp != NULL)
-	*elp = el;
-    *nvp = nv;
-}
-
-static Char **
-globexpand(v)
-    Char  **v;
-{
-    Char   *s;
-    Char  **nv, **vl, **el;
-    int     size = GLOBSPACE;
-
-
-    nv = vl = (Char **) xmalloc((size_t) sizeof(Char *) * size);
-    *vl = NULL;
-
-    /*
-     * Step 1: expand backquotes.
-     */
-    while ((s = *v++) != NULL) {
-	if (Strchr(s, '`')) {
-	    int     i;
-
-	    (void) dobackp(s, 0);
-	    for (i = 0; i < pargc; i++) {
-		*vl++ = pargv[i];
-		if (vl == &nv[size]) {
-		    size += GLOBSPACE;
-		    nv = (Char **) xrealloc((ptr_t) nv,
-					    (size_t) size * sizeof(Char *));
-		    vl = &nv[size - GLOBSPACE];
-		}
-	    }
-	    xfree((ptr_t) pargv);
-	    pargv = NULL;
-	}
-	else {
-	    *vl++ = Strsave(s);
-	    if (vl == &nv[size]) {
-		size += GLOBSPACE;
-		nv = (Char **) xrealloc((ptr_t) nv, (size_t)
-					size * sizeof(Char *));
-		vl = &nv[size - GLOBSPACE];
-	    }
-	}
-    }
-    *vl = NULL;
-
-    if (noglob)
-	return (nv);
-
-    /*
-     * Step 2: expand braces
-     */
-    el = vl;
-    expbrace(&nv, &el, size);
-
-    /*
-     * Step 3: expand ~
-     */
-    vl = nv;
-    for (s = *vl; s; s = *++vl)
-	if (*s == '~')
-	    *vl = globtilde(nv, s);
-    vl = nv;
-    return (vl);
-}
-
-static Char *
-handleone(str, vl, action)
-    Char   *str, **vl;
-    int     action;
-{
-
-    Char   *cp, **vlp = vl;
-
-    switch (action) {
-    case G_ERROR:
-	setname(vis_str(str));
-	blkfree(vl);
-	stderror(ERR_NAME | ERR_AMBIG);
-	break;
-    case G_APPEND:
-	trim(vlp);
-	str = Strsave(*vlp++);
-	do {
-	    cp = Strspl(str, STRspace);
-	    xfree((ptr_t) str);
-	    str = Strspl(cp, *vlp);
-	    xfree((ptr_t) cp);
-	}
-	while (*++vlp);
-	blkfree(vl);
-	break;
-    case G_IGNORE:
-	str = Strsave(strip(*vlp));
-	blkfree(vl);
-	break;
-    default:
-	break;
-    }
-    return (str);
-}
-
-static Char **
-libglob(vl)
-    Char  **vl;
-{
-    int     gflgs = GLOB_QUOTE | GLOB_NOMAGIC;
-    glob_t  globv;
-    char   *ptr;
-    int     nonomatch = adrof(STRnonomatch) != 0, magic = 0, match = 0;
-
-    if (!vl || !vl[0])
-	return (vl);
-
-    globv.gl_offs = 0;
-    globv.gl_pathv = 0;
-    globv.gl_pathc = 0;
-
-    if (nonomatch)
-	gflgs |= GLOB_NOCHECK;
-
-    do {
-	ptr = short2qstr(*vl);
-	switch (glob(ptr, gflgs, 0, &globv)) {
-	case GLOB_ABEND:
-	    setname(vis_str(*vl));
-	    stderror(ERR_NAME | ERR_GLOB);
-	    /* NOTREACHED */
-	case GLOB_NOSPACE:
-	    stderror(ERR_NOMEM);
-	    /* NOTREACHED */
-	default:
-	    break;
-	}
-	if (globv.gl_flags & GLOB_MAGCHAR) {
-	    match |= (globv.gl_matchc != 0);
-	    magic = 1;
-	}
-	gflgs |= GLOB_APPEND;
-    }
-    while (*++vl);
-    vl = (globv.gl_pathc == 0 || (magic && !match && !nonomatch)) ?
-	NULL : blk2short(globv.gl_pathv);
-    globfree(&globv);
-    return (vl);
-}
-
-Char   *
-globone(str, action)
-    Char   *str;
-    int     action;
-{
-    Char   *v[2], **vl, **vo;
-    int    gflg;
-
-    noglob = adrof(STRnoglob) != 0;
-    gflag = 0;
-    v[0] = str;
-    v[1] = 0;
-    tglob(v);
-    gflg = gflag;
-    if (gflg == G_NONE)
-	return (strip(Strsave(str)));
-
-    if (gflg & G_CSH) {
-	/*
-	 * Expand back-quote, tilde and brace
-	 */
-	vo = globexpand(v);
-	if (noglob || (gflg & G_GLOB) == 0) {
-	    if (vo[0] == NULL) {
-		xfree((ptr_t) vo);
-		return (Strsave(STRNULL));
-	    }
-	    if (vo[1] != NULL)
-		return (handleone(str, vo, action));
-	    else {
-		str = strip(vo[0]);
-		xfree((ptr_t) vo);
-		return (str);
-	    }
-	}
-    }
-    else if (noglob || (gflg & G_GLOB) == 0)
-	return (strip(Strsave(str)));
-    else
-	vo = v;
-
-    vl = libglob(vo);
-    if ((gflg & G_CSH) && vl != vo)
-	blkfree(vo);
-    if (vl == NULL) {
-	setname(vis_str(str));
-	stderror(ERR_NAME | ERR_NOMATCH);
-    }
-    if (vl[0] == NULL) {
-	xfree((ptr_t) vl);
-	return (Strsave(STRNULL));
-    }
-    if (vl[1] != NULL)
-	return (handleone(str, vl, action));
-    else {
-	str = strip(*vl);
-	xfree((ptr_t) vl);
-	return (str);
-    }
-}
-
-Char  **
-globall(v)
-    Char  **v;
-{
-    Char  **vl, **vo;
-    int   gflg = gflag;
-
-    if (!v || !v[0]) {
-	gargv = saveblk(v);
-	gargc = blklen(gargv);
-	return (gargv);
-    }
-
-    noglob = adrof(STRnoglob) != 0;
-
-    if (gflg & G_CSH)
-	/*
-	 * Expand back-quote, tilde and brace
-	 */
-	vl = vo = globexpand(v);
-    else
-	vl = vo = saveblk(v);
-
-    if (!noglob && (gflg & G_GLOB)) {
-	vl = libglob(vo);
-	if ((gflg & G_CSH) && vl != vo)
-	    blkfree(vo);
-    }
-    else
-	trim(vl);
-
-    gargc = vl ? blklen(vl) : 0;
-    return (gargv = vl);
-}
-
-void
-ginit()
-{
-    gargsiz = GLOBSPACE;
-    gargv = (Char **) xmalloc((size_t) sizeof(Char *) * gargsiz);
-    gargv[0] = 0;
-    gargc = 0;
-}
-
-void
-rscan(t, f)
-    Char **t;
-    void    (*f) __P((int));
-{
-    Char *p;
-
-    while ((p = *t++) != NULL)
-	while (*p)
-	    (*f) (*p++);
-}
-
-void
-trim(t)
-    Char **t;
-{
-    Char *p;
-
-    while ((p = *t++) != NULL)
-	while (*p)
-	    *p++ &= TRIM;
-}
-
-void
-tglob(t)
-    Char **t;
-{
-    Char *p, c;
-
-    while ((p = *t++) != NULL) {
-	if (*p == '~' || *p == '=')
-	    gflag |= G_CSH;
-	else if (*p == '{' &&
-		 (p[1] == '\0' || (p[1] == '}' && p[2] == '\0')))
-	    continue;
-	while ((c = *p++) != '\0') {
-	    /*
-	     * eat everything inside the matching backquotes
-	     */
-	    if (c == '`') {
-		gflag |= G_CSH;
-		while (*p && *p != '`')
-		    if (*p++ == '\\') {
-			if (*p)		/* Quoted chars */
-			    p++;
-			else
-			    break;
-		    }
-		if (*p)			/* The matching ` */
-		    p++;
-		else
-		    break;
-	    }
-	    else if (c == '{')
-		gflag |= G_CSH;
-	    else if (isglob(c))
-		gflag |= G_GLOB;
-	}
-    }
-}
-
-/*
- * Command substitute cp.  If literal, then this is a substitution from a
- * << redirection, and so we should not crunch blanks and tabs, separating
- * words only at newlines.
- */
-Char  **
-dobackp(cp, literal)
-    Char   *cp;
-    bool    literal;
-{
-    Char *lp, *rp;
-    Char   *ep, word[MAXPATHLEN];
-
-    if (pargv) {
-#ifdef notdef
-	abort();
-#endif
-	blkfree(pargv);
-    }
-    pargsiz = GLOBSPACE;
-    pargv = (Char **) xmalloc((size_t) sizeof(Char *) * pargsiz);
-    pargv[0] = NULL;
-    pargcp = pargs = word;
-    pargc = 0;
-    pnleft = MAXPATHLEN - 4;
-    for (;;) {
-	for (lp = cp; *lp != '`'; lp++) {
-	    if (*lp == 0) {
-		if (pargcp != pargs)
-		    pword();
-		return (pargv);
-	    }
-	    psave(*lp);
-	}
-	lp++;
-	for (rp = lp; *rp && *rp != '`'; rp++)
-	    if (*rp == '\\') {
-		rp++;
-		if (!*rp)
-		    goto oops;
-	    }
-	if (!*rp)
-    oops:  stderror(ERR_UNMATCHED, '`');
-	ep = Strsave(lp);
-	ep[rp - lp] = 0;
-	backeval(ep, literal);
-	cp = rp + 1;
-    }
-}
-
-static void
-backeval(cp, literal)
-    Char   *cp;
-    bool    literal;
-{
-    int icnt, c;
-    Char *ip;
-    struct command faket;
-    bool    hadnl;
-    int     pvec[2], quoted;
-    Char   *fakecom[2], ibuf[BUFSIZ];
-    char    tibuf[BUFSIZ];
-
-    hadnl = 0;
-    icnt = 0;
-    quoted = (literal || (cp[0] & QUOTE)) ? QUOTE : 0;
-    faket.t_dtyp = NODE_COMMAND;
-    faket.t_dflg = 0;
-    faket.t_dlef = 0;
-    faket.t_drit = 0;
-    faket.t_dspr = 0;
-    faket.t_dcom = fakecom;
-    fakecom[0] = STRfakecom1;
-    fakecom[1] = 0;
-
-    /*
-     * We do the psave job to temporarily change the current job so that the
-     * following fork is considered a separate job.  This is so that when
-     * backquotes are used in a builtin function that calls glob the "current
-     * job" is not corrupted.  We only need one level of pushed jobs as long as
-     * we are sure to fork here.
-     */
-    psavejob();
-
-    /*
-     * It would be nicer if we could integrate this redirection more with the
-     * routines in sh.sem.c by doing a fake execute on a builtin function that
-     * was piped out.
-     */
-    mypipe(pvec);
-    if (pfork(&faket, -1) == 0) {
-	struct wordent paraml;
-	struct command *t;
-
-	(void) close(pvec[0]);
-	(void) dmove(pvec[1], 1);
-	(void) dmove(SHERR, 2);
-	initdesc();
-	/*
-	 * Bugfix for nested backquotes by Michael Greim <[email protected]>,
-	 * posted to comp.bugs.4bsd 12 Sep. 1989.
-	 */
-	if (pargv)		/* mg, 21.dec.88 */
-	    blkfree(pargv), pargv = 0, pargsiz = 0;
-	/* mg, 21.dec.88 */
-	arginp = cp;
-	while (*cp)
-	    *cp++ &= TRIM;
-
-        /*
-	 * In the child ``forget'' everything about current aliases or
-	 * eval vectors.
-	 */
-	alvec = NULL;
-	evalvec = NULL;
-	alvecp = NULL;
-	evalp = NULL;
-	(void) lex(&paraml);
-	if (seterr)
-	    stderror(ERR_OLD);
-	alias(&paraml);
-	t = syntax(paraml.next, &paraml, 0);
-	if (seterr)
-	    stderror(ERR_OLD);
-	if (t)
-	    t->t_dflg |= F_NOFORK;
-	(void) signal(SIGTSTP, SIG_IGN);
-	(void) signal(SIGTTIN, SIG_IGN);
-	(void) signal(SIGTTOU, SIG_IGN);
-	execute(t, -1, NULL, NULL);
-	exitstat();
-    }
-    xfree((ptr_t) cp);
-    (void) close(pvec[1]);
-    c = 0;
-    ip = NULL;
-    do {
-	int     cnt = 0;
-
-	for (;;) {
-	    if (icnt == 0) {
-		int     i;
-
-		ip = ibuf;
-		do
-		    icnt = read(pvec[0], tibuf, BUFSIZ);
-		while (icnt == -1 && errno == EINTR);
-		if (icnt <= 0) {
-		    c = -1;
-		    break;
-		}
-		for (i = 0; i < icnt; i++)
-		    ip[i] = (unsigned char) tibuf[i];
-	    }
-	    if (hadnl)
-		break;
-	    --icnt;
-	    c = (*ip++ & TRIM);
-	    if (c == 0)
-		break;
-	    if (c == '\n') {
-		/*
-		 * Continue around the loop one more time, so that we can eat
-		 * the last newline without terminating this word.
-		 */
-		hadnl = 1;
-		continue;
-	    }
-	    if (!quoted && (c == ' ' || c == '\t'))
-		break;
-	    cnt++;
-	    psave(c | quoted);
-	}
-	/*
-	 * Unless at end-of-file, we will form a new word here if there were
-	 * characters in the word, or in any case when we take text literally.
-	 * If we didn't make empty words here when literal was set then we
-	 * would lose blank lines.
-	 */
-	if (c != -1 && (cnt || literal))
-	    pword();
-	hadnl = 0;
-    } while (c >= 0);
-    (void) close(pvec[0]);
-    pwait();
-    prestjob();
-}
-
-static void
-psave(c)
-    int    c;
-{
-    if (--pnleft <= 0)
-	stderror(ERR_WTOOLONG);
-    *pargcp++ = c;
-}
-
-static void
-pword()
-{
-    psave(0);
-    if (pargc == pargsiz - 1) {
-	pargsiz += GLOBSPACE;
-	pargv = (Char **) xrealloc((ptr_t) pargv,
-				   (size_t) pargsiz * sizeof(Char *));
-    }
-    pargv[pargc++] = Strsave(pargs);
-    pargv[pargc] = NULL;
-    pargcp = pargs;
-    pnleft = MAXPATHLEN - 4;
-}
-
-int
-Gmatch(string, pattern)
-    Char *string, *pattern;
-{
-    Char **blk, **p;
-    int	   gpol = 1, gres = 0;
-
-    if (*pattern == '^') {
-	gpol = 0;
-	pattern++;
-    }
-
-    blk = (Char **) xmalloc(GLOBSPACE * sizeof(Char *));
-    blk[0] = Strsave(pattern);
-    blk[1] = NULL;
-
-    expbrace(&blk, NULL, GLOBSPACE);
-
-    for (p = blk; *p; p++)
-	gres |= pmatch(string, *p);
-
-    blkfree(blk);
-    return(gres == gpol);
-}
-
-static int
-pmatch(string, pattern)
-    Char *string, *pattern;
-{
-    Char stringc, patternc;
-    int     match, negate_range;
-    Char    rangec;
-
-    for (;; ++string) {
-	stringc = *string & TRIM;
-	patternc = *pattern++;
-	switch (patternc) {
-	case 0:
-	    return (stringc == 0);
-	case '?':
-	    if (stringc == 0)
-		return (0);
-	    break;
-	case '*':
-	    if (!*pattern)
-		return (1);
-	    while (*string)
-		if (Gmatch(string++, pattern))
-		    return (1);
-	    return (0);
-	case '[':
-	    match = 0;
-	    if ((negate_range = (*pattern == '^')) != 0)
-		pattern++;
-	    while ((rangec = *pattern++) != '\0') {
-		if (rangec == ']')
-		    break;
-		if (match)
-		    continue;
-		if (rangec == '-' && *(pattern-2) != '[' && *pattern  != ']') {
-		    match = (   collate_range_cmp(stringc, *pattern & TRIM) <= 0
-			     && collate_range_cmp(*(pattern-2) & TRIM, stringc) <= 0
-			    );
-		    pattern++;
-		}
-		else
-		    match = (stringc == (rangec & TRIM));
-	    }
-	    if (rangec == 0)
-		stderror(ERR_NAME | ERR_MISSING, ']');
-	    if (match == negate_range)
-		return (0);
-	    break;
-	default:
-	    if ((patternc & TRIM) != stringc)
-		return (0);
-	    break;
-
-	}
-    }
-}
-
-void
-Gcat(s1, s2)
-    Char   *s1, *s2;
-{
-    Char *p, *q;
-    int     n;
-
-    for (p = s1; *p++;)
-	continue;
-    for (q = s2; *q++;)
-	continue;
-    n = (p - s1) + (q - s2) - 1;
-    if (++gargc >= gargsiz) {
-	gargsiz += GLOBSPACE;
-	gargv = (Char **) xrealloc((ptr_t) gargv,
-				   (size_t) gargsiz * sizeof(Char *));
-    }
-    gargv[gargc] = 0;
-    p = gargv[gargc - 1] = (Char *) xmalloc((size_t) n * sizeof(Char));
-    for (q = s1; (*p++ = *q++) != '\0';)
-	continue;
-    for (p--, q = s2; (*p++ = *q++) != '\0';)
-	continue;
-}
-
-#ifdef FILEC
-int
-sortscmp(a, b)
-    const ptr_t a, b;
-{
-#if defined(NLS) && !defined(NOSTRCOLL)
-    char    buf[2048];
-#endif
-
-    if (!a)			/* check for NULL */
-	return (b ? 1 : 0);
-    if (!b)
-	return (-1);
-
-    if (!*(Char **)a)			/* check for NULL */
-	return (*(Char **)b ? 1 : 0);
-    if (!*(Char **)b)
-	return (-1);
-
-#if defined(NLS) && !defined(NOSTRCOLL)
-    (void) strcpy(buf, short2str(*(Char **)a));
-    return ((int) strcoll(buf, short2str(*(Char **)b)));
-#else
-    return ((int) Strcmp(*(Char **)a, *(Char **)b));
-#endif
-}
-#endif /* FILEC */
@@ -1,188 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)hist.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-static void	hfree __P((struct Hist *));
-static void	dohist1 __P((struct Hist *, int *, int, int));
-static void	phist __P((struct Hist *, int));
-
-void
-savehist(sp)
-    struct wordent *sp;
-{
-    struct Hist *hp, *np;
-    int histlen = 0;
-    Char   *cp;
-
-    /* throw away null lines */
-    if (sp->next->word[0] == '\n')
-	return;
-    cp = value(STRhistory);
-    if (*cp) {
-	Char *p = cp;
-
-	while (*p) {
-	    if (!Isdigit(*p)) {
-		histlen = 0;
-		break;
-	    }
-	    histlen = histlen * 10 + *p++ - '0';
-	}
-    }
-    for (hp = &Histlist; (np = hp->Hnext) != NULL;)
-	if (eventno - np->Href >= histlen || histlen == 0)
-	    hp->Hnext = np->Hnext, hfree(np);
-	else
-	    hp = np;
-    (void) enthist(++eventno, sp, 1);
-}
-
-struct Hist *
-enthist(event, lp, docopy)
-    int     event;
-    struct wordent *lp;
-    bool    docopy;
-{
-    struct Hist *np;
-
-    np = (struct Hist *) xmalloc((size_t) sizeof(*np));
-    np->Hnum = np->Href = event;
-    if (docopy) {
-	copylex(&np->Hlex, lp);
-    }
-    else {
-	np->Hlex.next = lp->next;
-	lp->next->prev = &np->Hlex;
-	np->Hlex.prev = lp->prev;
-	lp->prev->next = &np->Hlex;
-    }
-    np->Hnext = Histlist.Hnext;
-    Histlist.Hnext = np;
-    return (np);
-}
-
-static void
-hfree(hp)
-    struct Hist *hp;
-{
-
-    freelex(&hp->Hlex);
-    xfree((ptr_t) hp);
-}
-
-void
-/*ARGSUSED*/
-dohist(v, t)
-    Char **v;
-    struct command *t;
-{
-    int     n, rflg = 0, hflg = 0;
-
-    if (getn(value(STRhistory)) == 0)
-	return;
-    if (setintr)
-	(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
-    while (*++v && **v == '-') {
-	Char   *vp = *v;
-
-	while (*++vp)
-	    switch (*vp) {
-	    case 'h':
-		hflg++;
-		break;
-	    case 'r':
-		rflg++;
-		break;
-	    case '-':		/* ignore multiple '-'s */
-		break;
-	    default:
-		stderror(ERR_HISTUS);
-		break;
-	    }
-    }
-    if (*v)
-	n = getn(*v);
-    else {
-	n = getn(value(STRhistory));
-    }
-    dohist1(Histlist.Hnext, &n, rflg, hflg);
-}
-
-static void
-dohist1(hp, np, rflg, hflg)
-    struct Hist *hp;
-    int    *np, rflg, hflg;
-{
-    bool    print = (*np) > 0;
-
-    for (; hp != 0; hp = hp->Hnext) {
-	(*np)--;
-	hp->Href++;
-	if (rflg == 0) {
-	    dohist1(hp->Hnext, np, rflg, hflg);
-	    if (print)
-		phist(hp, hflg);
-	    return;
-	}
-	if (*np >= 0)
-	    phist(hp, hflg);
-    }
-}
-
-static void
-phist(hp, hflg)
-    struct Hist *hp;
-    int     hflg;
-{
-    if (hflg == 0)
-	(void) fprintf(cshout, "%6d\t", hp->Hnum);
-    prlex(cshout, &hp->Hlex);
-}
@@ -1,139 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)init.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-#define	INF	1000
-
-struct biltins bfunc[] =
-{
-    { "@", 		dolet, 		0, INF	},
-    { "alias", 		doalias, 	0, INF	},
-    { "alloc", 		showall, 	0, 1	},
-    { "bg", 		dobg, 		0, INF	},
-    { "break", 		dobreak, 	0, 0	},
-    { "breaksw", 	doswbrk, 	0, 0	},
-    { "case", 		dozip, 		0, 1	},
-    { "cd", 		dochngd, 	0, INF	},
-    { "chdir", 		dochngd, 	0, INF	},
-    { "continue", 	docontin, 	0, 0	},
-    { "default", 	dozip, 		0, 0	},
-    { "dirs", 		dodirs,		0, INF	},
-    { "echo", 		doecho,		0, INF	},
-    { "else", 		doelse,		0, INF	},
-    { "end", 		doend, 		0, 0	},
-    { "endif", 		dozip, 		0, 0	},
-    { "endsw", 		dozip, 		0, 0	},
-    { "eval", 		doeval, 	0, INF	},
-    { "exec", 		execash, 	1, INF	},
-    { "exit", 		doexit, 	0, INF	},
-    { "fg", 		dofg, 		0, INF	},
-    { "foreach", 	doforeach, 	3, INF	},
-    { "glob", 		doglob, 	0, INF	},
-    { "goto", 		dogoto, 	1, 1	},
-    { "hashstat", 	hashstat, 	0, 0	},
-    { "history", 	dohist, 	0, 2	},
-    { "if", 		doif, 		1, INF	},
-    { "jobs", 		dojobs, 	0, 1	},
-    { "kill", 		dokill, 	1, INF	},
-    { "limit", 		dolimit, 	0, 3	},
-    { "linedit", 	doecho, 	0, INF	},
-    { "login", 		dologin, 	0, 1	},
-    { "logout", 	dologout, 	0, 0	},
-    { "nice", 		donice, 	0, INF	},
-    { "nohup", 		donohup, 	0, INF	},
-    { "notify", 	donotify, 	0, INF	},
-    { "onintr", 	doonintr, 	0, 2	},
-    { "popd", 		dopopd, 	0, INF	},
-    { "printf",		doprintf,	1, INF	},
-    { "pushd", 		dopushd, 	0, INF	},
-    { "rehash", 	dohash, 	0, 0	},
-    { "repeat", 	dorepeat, 	2, INF	},
-    { "set", 		doset, 		0, INF	},
-    { "setenv", 	dosetenv, 	0, 2	},
-    { "shift", 		shift, 		0, 1	},
-    { "source", 	dosource, 	1, 2	},
-    { "stop", 		dostop, 	1, INF	},
-    { "suspend", 	dosuspend, 	0, 0	},
-    { "switch", 	doswitch, 	1, INF	},
-    { "time", 		dotime, 	0, INF	},
-    { "umask", 		doumask, 	0, 1	},
-    { "unalias", 	unalias, 	1, INF	},
-    { "unhash", 	dounhash, 	0, 0	},
-    { "unlimit", 	dounlimit, 	0, INF	},
-    { "unset", 		unset, 		1, INF	},
-    { "unsetenv", 	dounsetenv, 	1, INF	},
-    { "wait",		dowait, 	0, 0	},
-    { "which",		dowhich, 	1, INF	},
-    { "while", 		dowhile, 	1, INF	}
-};
-int     nbfunc = sizeof bfunc / sizeof *bfunc;
-
-struct srch srchn[] =
-{
-    { "@", 		T_LET		},
-    { "break", 		T_BREAK		},
-    { "breaksw", 	T_BRKSW		},
-    { "case", 		T_CASE		},
-    { "default", 	T_DEFAULT	},
-    { "else", 		T_ELSE		},
-    { "end", 		T_END		},
-    { "endif", 		T_ENDIF		},
-    { "endsw", 		T_ENDSW		},
-    { "exit", 		T_EXIT		},
-    { "foreach", 	T_FOREACH	},
-    { "goto", 		T_GOTO		},
-    { "if", 		T_IF		},
-    { "label", 		T_LABEL		},
-    { "set", 		T_SET		},
-    { "switch", 	T_SWITCH	},
-    { "while", 		T_WHILE		}
-};
-int     nsrchn = sizeof srchn / sizeof *srchn;
-
@@ -1,424 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-static int	renum __P((int, int));
-
-int
-any(s, c)
-    char *s;
-    int c;
-{
-    if (!s)
-	return (0);		/* Check for nil pointer */
-    while (*s)
-	if (*s++ == c)
-	    return (1);
-    return (0);
-}
-
-void
-setzero(cp, i)
-    char   *cp;
-    int     i;
-{
-    if (i != 0)
-	do
-	    *cp++ = 0;
-	while (--i);
-}
-
-char   *
-strsave(s)
-    char *s;
-{
-    char   *n;
-    char *p;
-
-    if (s == NULL)
-	s = "";
-    for (p = s; *p++;)
-	continue;
-    n = p = (char *) xmalloc((size_t) ((p - s) * sizeof(char)));
-    while ((*p++ = *s++) != '\0')
-	continue;
-    return (n);
-}
-
-Char  **
-blkend(up)
-    Char **up;
-{
-
-    while (*up)
-	up++;
-    return (up);
-}
-
-
-void
-blkpr(fp, av)
-    FILE *fp;
-    Char **av;
-{
-
-    for (; *av; av++) {
-	(void) fprintf(fp, "%s", vis_str(*av));
-	if (av[1])
-	    (void) fprintf(fp, " ");
-    }
-}
-
-int
-blklen(av)
-    Char **av;
-{
-    int i = 0;
-
-    while (*av++)
-	i++;
-    return (i);
-}
-
-Char  **
-blkcpy(oav, bv)
-    Char  **oav;
-    Char **bv;
-{
-    Char **av = oav;
-
-    while ((*av++ = *bv++) != NULL)
-	continue;
-    return (oav);
-}
-
-Char  **
-blkcat(up, vp)
-    Char  **up, **vp;
-{
-
-    (void) blkcpy(blkend(up), vp);
-    return (up);
-}
-
-void
-blkfree(av0)
-    Char  **av0;
-{
-    Char **av = av0;
-
-    if (!av0)
-	return;
-    for (; *av; av++)
-	xfree((ptr_t) * av);
-    xfree((ptr_t) av0);
-}
-
-Char  **
-saveblk(v)
-    Char **v;
-{
-    Char **newv =
-    (Char **) xcalloc((size_t) (blklen(v) + 1), sizeof(Char **));
-    Char  **onewv = newv;
-
-    while (*v)
-	*newv++ = Strsave(*v++);
-    return (onewv);
-}
-
-#ifdef NOTUSED
-char   *
-strstr(s, t)
-    char *s, *t;
-{
-    do {
-	char *ss = s;
-	char *tt = t;
-
-	do
-	    if (*tt == '\0')
-		return (s);
-	while (*ss++ == *tt++);
-    } while (*s++ != '\0');
-    return (NULL);
-}
-
-#endif /* NOTUSED */
-
-#ifndef SHORT_STRINGS
-char   *
-strspl(cp, dp)
-    char   *cp, *dp;
-{
-    char   *ep;
-    char *p, *q;
-
-    if (!cp)
-	cp = "";
-    if (!dp)
-	dp = "";
-    for (p = cp; *p++;)
-	continue;
-    for (q = dp; *q++;)
-	continue;
-    ep = (char *) xmalloc((size_t) (((p - cp) + (q - dp) - 1) * sizeof(char)));
-    for (p = ep, q = cp; *p++ = *q++;)
-	continue;
-    for (p--, q = dp; *p++ = *q++;)
-	continue;
-    return (ep);
-}
-
-#endif
-
-Char  **
-blkspl(up, vp)
-    Char **up, **vp;
-{
-    Char **wp =
-    (Char **) xcalloc((size_t) (blklen(up) + blklen(vp) + 1),
-		      sizeof(Char **));
-
-    (void) blkcpy(wp, up);
-    return (blkcat(wp, vp));
-}
-
-Char
-lastchr(cp)
-    Char *cp;
-{
-
-    if (!cp)
-	return (0);
-    if (!*cp)
-	return (0);
-    while (cp[1])
-	cp++;
-    return (*cp);
-}
-
-/*
- * This routine is called after an error to close up
- * any units which may have been left open accidentally.
- */
-void
-closem()
-{
-    int f, flimit;
-
-    for (f = 0, flimit = getdtablesize(); f < flimit; f++)
-	if (f != SHIN && f != SHOUT && f != SHERR && f != OLDSTD &&
-	    f != FSHTTY)
-	    (void) close(f);
-}
-
-void
-donefds()
-{
-    (void) close(0);
-    (void) close(1);
-    (void) close(2);
-
-    didfds = 0;
-}
-
-/*
- * Move descriptor i to j.
- * If j is -1 then we just want to get i to a safe place,
- * i.e. to a unit > 2.  This also happens in dcopy.
- */
-int
-dmove(i, j)
-    int i, j;
-{
-
-    if (i == j || i < 0)
-	return (i);
-    if (j >= 0) {
-	(void) dup2(i, j);
-	if (j != i)
-	    (void) close(i);
-	return (j);
-    }
-    j = dcopy(i, j);
-    if (j != i)
-	(void) close(i);
-    return (j);
-}
-
-int
-dcopy(i, j)
-    int i, j;
-{
-
-    if (i == j || i < 0 || (j < 0 && i > 2))
-	return (i);
-    if (j >= 0) {
-	(void) dup2(i, j);
-	return (j);
-    }
-    (void) close(j);
-    return (renum(i, j));
-}
-
-static int
-renum(i, j)
-    int i, j;
-{
-    int k = dup(i);
-
-    if (k < 0)
-	return (-1);
-    if (j == -1 && k > 2)
-	return (k);
-    if (k != j) {
-	j = renum(k, j);
-	(void) close(k);
-	return (j);
-    }
-    return (k);
-}
-
-/*
- * Left shift a command argument list, discarding
- * the first c arguments.  Used in "shift" commands
- * as well as by commands like "repeat".
- */
-void
-lshift(v, c)
-    Char **v;
-    int c;
-{
-    Char **u;
-
-    for (u = v; *u && --c >= 0; u++)
-	xfree((ptr_t) *u);
-    (void) blkcpy(v, u);
-}
-
-int
-number(cp)
-    Char   *cp;
-{
-    if (!cp)
-	return(0);
-    if (*cp == '-') {
-	cp++;
-	if (!Isdigit(*cp))
-	    return (0);
-	cp++;
-    }
-    while (*cp && Isdigit(*cp))
-	cp++;
-    return (*cp == 0);
-}
-
-Char  **
-copyblk(v)
-    Char **v;
-{
-    Char  **nv = (Char **) xcalloc((size_t) (blklen(v) + 1), sizeof(Char **));
-
-    return (blkcpy(nv, v));
-}
-
-#ifndef SHORT_STRINGS
-char   *
-strend(cp)
-    char *cp;
-{
-    if (!cp)
-	return (cp);
-    while (*cp)
-	cp++;
-    return (cp);
-}
-
-#endif /* SHORT_STRINGS */
-
-Char   *
-strip(cp)
-    Char   *cp;
-{
-    Char *dp = cp;
-
-    if (!cp)
-	return (cp);
-    while ((*dp++ &= TRIM) != '\0')
-	continue;
-    return (cp);
-}
-
-void
-udvar(name)
-    Char   *name;
-{
-
-    setname(vis_str(name));
-    stderror(ERR_NAME | ERR_UNDVAR);
-}
-
-int
-prefix(sub, str)
-    Char *sub, *str;
-{
-
-    for (;;) {
-	if (*sub == 0)
-	    return (1);
-	if (*str == 0)
-	    return (0);
-	if (*sub++ != *str++)
-	    return (0);
-    }
-}
@@ -0,0 +1,8 @@
+# $FreeBSD$
+
+SUBDIR= finnish french ja german italian spanish
+
+# We are not ready for greek yet
+#SUBDIR+= greek
+
+.include <bsd.subdir.mk>
@@ -0,0 +1,17 @@
+# $FreeBSD$
+
+GENCAT=         gencat -new
+BASESRC=        ${.CURDIR}/../../../../contrib/tcsh/nls
+
+.SUFFIXES: .msg .cat
+
+.msg.cat:
+	${GENCAT} ${.TARGET} ${.IMPSRC}
+
+CLEANFILES+= tcsh.cat tcsh.msg
+
+all: tcsh.cat
+
+tcsh.cat: tcsh.msg
+
+distribute:
@@ -0,0 +1,20 @@
+# $FreeBSD$
+
+NL=     finnish
+DL=     fi_FI.ISO_8859-1
+LL=     fi_FI.DIS_8859-15
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+.for i in ${LL}
+	ln -fs ../${DL}/tcsh.cat ${DESTDIR}${NLSDIR}/$i/tcsh.cat
+.endfor
+
+.include <bsd.prog.mk>
@@ -0,0 +1,22 @@
+# $FreeBSD$
+
+NL=     french
+DL=     fr_FR.ISO_8859-1
+LL=     fr_BE.ISO_8859-1 fr_CA.ISO_8859-1 fr_CH.ISO_8859-1 \
+	fr_BE.DIS_8859-15 fr_CA.DIS_8859-15 fr_CH.DIS_8859-15 \
+	fr_FR.DIS_8859-15
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+.for i in ${LL}
+	ln -fs ../${DL}/tcsh.cat ${DESTDIR}${NLSDIR}/$i/tcsh.cat
+.endfor
+
+.include <bsd.prog.mk>
@@ -0,0 +1,21 @@
+# $FreeBSD$
+
+NL=     german
+DL=     de_DE.ISO_8859-1
+LL=     de_AT.ISO_8859-1 de_CH.ISO_8859-1 de_AT.DIS_8859-15 \
+	de_CH.DIS_8859-15 de_DE.DIS_8859-15
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+.for i in ${LL}
+	ln -fs ../${DL}/tcsh.cat ${DESTDIR}${NLSDIR}/$i/tcsh.cat
+.endfor
+
+.include <bsd.prog.mk>
@@ -0,0 +1,16 @@
+# $FreeBSD$
+
+NL=     greek
+DL=     el_GR.ISO_8859-7
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+
+.include <bsd.prog.mk>
@@ -0,0 +1,20 @@
+# $FreeBSD$
+
+NL=     italian
+DL=     it_IT.ISO_8859-1
+LL=     it_CH.ISO_8859-1 it_IT.DIS_8859-15 it_CH.DIS_8859-15
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+.for i in ${LL}
+	ln -fs ../${DL}/tcsh.cat ${DESTDIR}${NLSDIR}/$i/tcsh.cat
+.endfor
+
+.include <bsd.prog.mk>
@@ -0,0 +1,16 @@
+# $FreeBSD$
+
+NL=     ja
+DL=     ja_JP.EUC
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+
+.include <bsd.prog.mk>
@@ -0,0 +1,20 @@
+# $FreeBSD$
+
+NL=     spanish
+DL=     es_ES.ISO_8859-1
+LL=     es_ES.DIS_8859-15
+
+.PATH: ${BASESRC}/${NL}
+
+tcsh.msg: set[0-9]*
+	cat ${BASESRC}/${NL}/set[0-9] \
+	    ${BASESRC}/${NL}/set[0-9][0-9] > ${.TARGET}
+
+install:
+	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
+		tcsh.cat ${DESTDIR}${NLSDIR}/${DL}/tcsh.cat
+.for i in ${LL}
+	ln -fs ../${DL}/tcsh.cat ${DESTDIR}${NLSDIR}/$i/tcsh.cat
+.endfor
+
+.include <bsd.prog.mk>
@@ -1,702 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)parse.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <string.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-static void	 asyntax __P((struct wordent *, struct wordent *));
-static void	 asyn0 __P((struct wordent *, struct wordent *));
-static void	 asyn3 __P((struct wordent *, struct wordent *));
-static struct wordent
-		*freenod __P((struct wordent *, struct wordent *));
-static struct command
-		*syn0 __P((struct wordent *, struct wordent *, int));
-static struct command
-		*syn1 __P((struct wordent *, struct wordent *, int));
-static struct command
-		*syn1a __P((struct wordent *, struct wordent *, int));
-static struct command
-		*syn1b __P((struct wordent *, struct wordent *, int));
-static struct command
-		*syn2 __P((struct wordent *, struct wordent *, int));
-static struct command
-		*syn3 __P((struct wordent *, struct wordent *, int));
-
-#define ALEFT	21		/* max of 20 alias expansions	 */
-#define HLEFT	11		/* max of 10 history expansions	 */
-/*
- * Perform aliasing on the word list lex
- * Do a (very rudimentary) parse to separate into commands.
- * If word 0 of a command has an alias, do it.
- * Repeat a maximum of 20 times.
- */
-static int aleft;
-extern int hleft;
-void
-alias(lex)
-    struct wordent *lex;
-{
-    jmp_buf osetexit;
-
-    aleft = ALEFT;
-    hleft = HLEFT;
-    getexit(osetexit);
-    (void) setexit();
-    if (haderr) {
-	resexit(osetexit);
-	reset();
-    }
-    if (--aleft == 0)
-	stderror(ERR_ALIASLOOP);
-    asyntax(lex->next, lex);
-    resexit(osetexit);
-}
-
-static void
-asyntax(p1, p2)
-    struct wordent *p1, *p2;
-{
-    while (p1 != p2)
-	if (any(";&\n", p1->word[0]))
-	    p1 = p1->next;
-	else {
-	    asyn0(p1, p2);
-	    return;
-	}
-}
-
-static void
-asyn0(p1, p2)
-    struct wordent *p1;
-    struct wordent *p2;
-{
-    struct wordent *p;
-    int l = 0;
-
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    if (l < 0)
-		stderror(ERR_TOOMANYRP);
-	    continue;
-
-	case '>':
-	    if (p->next != p2 && eq(p->next->word, STRand))
-		p = p->next;
-	    continue;
-
-	case '&':
-	case '|':
-	case ';':
-	case '\n':
-	    if (l != 0)
-		continue;
-	    asyn3(p1, p);
-	    asyntax(p->next, p2);
-	    return;
-	}
-    if (l == 0)
-	asyn3(p1, p2);
-}
-
-static void
-asyn3(p1, p2)
-    struct wordent *p1;
-    struct wordent *p2;
-{
-    struct varent *ap;
-    struct wordent alout;
-    bool redid;
-
-    if (p1 == p2)
-	return;
-    if (p1->word[0] == '(') {
-	for (p2 = p2->prev; p2->word[0] != ')'; p2 = p2->prev)
-	    if (p2 == p1)
-		return;
-	if (p2 == p1->next)
-	    return;
-	asyn0(p1->next, p2);
-	return;
-    }
-    ap = adrof1(p1->word, &aliases);
-    if (ap == 0)
-	return;
-    alhistp = p1->prev;
-    alhistt = p2;
-    alvec = ap->vec;
-    redid = lex(&alout);
-    alhistp = alhistt = 0;
-    alvec = 0;
-    if (seterr) {
-	freelex(&alout);
-	stderror(ERR_OLD);
-    }
-    if (p1->word[0] && eq(p1->word, alout.next->word)) {
-	Char   *cp = alout.next->word;
-
-	alout.next->word = Strspl(STRQNULL, cp);
-	xfree((ptr_t) cp);
-    }
-    p1 = freenod(p1, redid ? p2 : p1->next);
-    if (alout.next != &alout) {
-	p1->next->prev = alout.prev->prev;
-	alout.prev->prev->next = p1->next;
-	alout.next->prev = p1;
-	p1->next = alout.next;
-	xfree((ptr_t) alout.prev->word);
-	xfree((ptr_t) (alout.prev));
-    }
-    reset();			/* throw! */
-}
-
-static struct wordent *
-freenod(p1, p2)
-    struct wordent *p1, *p2;
-{
-    struct wordent *retp = p1->prev;
-
-    while (p1 != p2) {
-	xfree((ptr_t) p1->word);
-	p1 = p1->next;
-	xfree((ptr_t) (p1->prev));
-    }
-    retp->next = p2;
-    p2->prev = retp;
-    return (retp);
-}
-
-#define	PHERE	1
-#define	PIN	2
-#define	POUT	4
-#define	PERR	8
-
-/*
- * syntax
- *	empty
- *	syn0
- */
-struct command *
-syntax(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-
-    while (p1 != p2)
-	if (any(";&\n", p1->word[0]))
-	    p1 = p1->next;
-	else
-	    return (syn0(p1, p2, flags));
-    return (0);
-}
-
-/*
- * syn0
- *	syn1
- *	syn1 & syntax
- */
-static struct command *
-syn0(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p;
-    struct command *t, *t1;
-    int     l;
-
-    l = 0;
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    if (l < 0)
-		seterror(ERR_TOOMANYRP);
-	    continue;
-
-	case '|':
-	    if (p->word[1] == '|')
-		continue;
-	    /* fall into ... */
-
-	case '>':
-	    if (p->next != p2 && eq(p->next->word, STRand))
-		p = p->next;
-	    continue;
-
-	case '&':
-	    if (l != 0)
-		break;
-	    if (p->word[1] == '&')
-		continue;
-	    t1 = syn1(p1, p, flags);
-	    if (t1->t_dtyp == NODE_LIST ||
-		t1->t_dtyp == NODE_AND ||
-		t1->t_dtyp == NODE_OR) {
-		t = (struct command *) xcalloc(1, sizeof(*t));
-		t->t_dtyp = NODE_PAREN;
-		t->t_dflg = F_AMPERSAND | F_NOINTERRUPT;
-		t->t_dspr = t1;
-		t1 = t;
-	    }
-	    else
-		t1->t_dflg |= F_AMPERSAND | F_NOINTERRUPT;
-	    t = (struct command *) xcalloc(1, sizeof(*t));
-	    t->t_dtyp = NODE_LIST;
-	    t->t_dflg = 0;
-	    t->t_dcar = t1;
-	    t->t_dcdr = syntax(p, p2, flags);
-	    return (t);
-	}
-    if (l == 0)
-	return (syn1(p1, p2, flags));
-    seterror(ERR_TOOMANYLP);
-    return (0);
-}
-
-/*
- * syn1
- *	syn1a
- *	syn1a ; syntax
- */
-static struct command *
-syn1(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p;
-    struct command *t;
-    int     l;
-
-    l = 0;
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    continue;
-
-	case ';':
-	case '\n':
-	    if (l != 0)
-		break;
-	    t = (struct command *) xcalloc(1, sizeof(*t));
-	    t->t_dtyp = NODE_LIST;
-	    t->t_dcar = syn1a(p1, p, flags);
-	    t->t_dcdr = syntax(p->next, p2, flags);
-	    if (t->t_dcdr == 0)
-		t->t_dcdr = t->t_dcar, t->t_dcar = 0;
-	    return (t);
-	}
-    return (syn1a(p1, p2, flags));
-}
-
-/*
- * syn1a
- *	syn1b
- *	syn1b || syn1a
- */
-static struct command *
-syn1a(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p;
-    struct command *t;
-    int l = 0;
-
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    continue;
-
-	case '|':
-	    if (p->word[1] != '|')
-		continue;
-	    if (l == 0) {
-		t = (struct command *) xcalloc(1, sizeof(*t));
-		t->t_dtyp = NODE_OR;
-		t->t_dcar = syn1b(p1, p, flags);
-		t->t_dcdr = syn1a(p->next, p2, flags);
-		t->t_dflg = 0;
-		return (t);
-	    }
-	    continue;
-	}
-    return (syn1b(p1, p2, flags));
-}
-
-/*
- * syn1b
- *	syn2
- *	syn2 && syn1b
- */
-static struct command *
-syn1b(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p;
-    struct command *t;
-    int l = 0;
-
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    continue;
-
-	case '&':
-	    if (p->word[1] == '&' && l == 0) {
-		t = (struct command *) xcalloc(1, sizeof(*t));
-		t->t_dtyp = NODE_AND;
-		t->t_dcar = syn2(p1, p, flags);
-		t->t_dcdr = syn1b(p->next, p2, flags);
-		t->t_dflg = 0;
-		return (t);
-	    }
-	    continue;
-	}
-    return (syn2(p1, p2, flags));
-}
-
-/*
- * syn2
- *	syn3
- *	syn3 | syn2
- *	syn3 |& syn2
- */
-static struct command *
-syn2(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p, *pn;
-    struct command *t;
-    int l = 0;
-    int     f;
-
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    l++;
-	    continue;
-
-	case ')':
-	    l--;
-	    continue;
-
-	case '|':
-	    if (l != 0)
-		continue;
-	    t = (struct command *) xcalloc(1, sizeof(*t));
-	    f = flags | POUT;
-	    pn = p->next;
-	    if (pn != p2 && pn->word[0] == '&') {
-		f |= PERR;
-		t->t_dflg |= F_STDERR;
-	    }
-	    t->t_dtyp = NODE_PIPE;
-	    t->t_dcar = syn3(p1, p, f);
-	    if (pn != p2 && pn->word[0] == '&')
-		p = pn;
-	    t->t_dcdr = syn2(p->next, p2, flags | PIN);
-	    return (t);
-	}
-    return (syn3(p1, p2, flags));
-}
-
-static char RELPAR[] = {'<', '>', '(', ')', '\0'};
-
-/*
- * syn3
- *	( syn0 ) [ < in  ] [ > out ]
- *	word word* [ < in ] [ > out ]
- *	KEYWORD ( word* ) word* [ < in ] [ > out ]
- *
- *	KEYWORD = (@ exit foreach if set switch test while)
- */
-static struct command *
-syn3(p1, p2, flags)
-    struct wordent *p1, *p2;
-    int     flags;
-{
-    struct wordent *p;
-    struct wordent *lp, *rp;
-    struct command *t;
-    int l;
-    Char  **av;
-    int     n, c;
-    bool    specp = 0;
-
-    if (p1 != p2) {
-	p = p1;
-again:
-	switch (srchx(p->word)) {
-
-	case T_ELSE:
-	    p = p->next;
-	    if (p != p2)
-		goto again;
-	    break;
-
-	case T_EXIT:
-	case T_FOREACH:
-	case T_IF:
-	case T_LET:
-	case T_SET:
-	case T_SWITCH:
-	case T_WHILE:
-	    specp = 1;
-	    break;
-	}
-    }
-    n = 0;
-    l = 0;
-    for (p = p1; p != p2; p = p->next)
-	switch (p->word[0]) {
-
-	case '(':
-	    if (specp)
-		n++;
-	    l++;
-	    continue;
-
-	case ')':
-	    if (specp)
-		n++;
-	    l--;
-	    continue;
-
-	case '>':
-	case '<':
-	    if (l != 0) {
-		if (specp)
-		    n++;
-		continue;
-	    }
-	    if (p->next == p2)
-		continue;
-	    if (any(RELPAR, p->next->word[0]))
-		continue;
-	    n--;
-	    continue;
-
-	default:
-	    if (!specp && l != 0)
-		continue;
-	    n++;
-	    continue;
-	}
-    if (n < 0)
-	n = 0;
-    t = (struct command *) xcalloc(1, sizeof(*t));
-    av = (Char **) xcalloc((size_t) (n + 1), sizeof(Char **));
-    t->t_dcom = av;
-    n = 0;
-    if (p2->word[0] == ')')
-	t->t_dflg = F_NOFORK;
-    lp = 0;
-    rp = 0;
-    l = 0;
-    for (p = p1; p != p2; p = p->next) {
-	c = p->word[0];
-	switch (c) {
-
-	case '(':
-	    if (l == 0) {
-		if (lp != 0 && !specp)
-		    seterror(ERR_BADPLP);
-		lp = p->next;
-	    }
-	    l++;
-	    goto savep;
-
-	case ')':
-	    l--;
-	    if (l == 0)
-		rp = p;
-	    goto savep;
-
-	case '>':
-	    if (l != 0)
-		goto savep;
-	    if (p->word[1] == '>')
-		t->t_dflg |= F_APPEND;
-	    if (p->next != p2 && eq(p->next->word, STRand)) {
-		t->t_dflg |= F_STDERR, p = p->next;
-		if (flags & (POUT | PERR)) {
-		    seterror(ERR_OUTRED);
-		    continue;
-		}
-	    }
-	    if (p->next != p2 && eq(p->next->word, STRbang))
-		t->t_dflg |= F_OVERWRITE, p = p->next;
-	    if (p->next == p2) {
-		seterror(ERR_MISRED);
-		continue;
-	    }
-	    p = p->next;
-	    if (any(RELPAR, p->word[0])) {
-		seterror(ERR_MISRED);
-		continue;
-	    }
-	    if ((flags & POUT) && ((flags & PERR) == 0 || t->t_drit))
-		seterror(ERR_OUTRED);
-	    else
-		t->t_drit = Strsave(p->word);
-	    continue;
-
-	case '<':
-	    if (l != 0)
-		goto savep;
-	    if (p->word[1] == '<')
-		t->t_dflg |= F_READ;
-	    if (p->next == p2) {
-		seterror(ERR_MISRED);
-		continue;
-	    }
-	    p = p->next;
-	    if (any(RELPAR, p->word[0])) {
-		seterror(ERR_MISRED);
-		continue;
-	    }
-	    if ((flags & PHERE) && (t->t_dflg & F_READ))
-		seterror(ERR_REDPAR);
-	    else if ((flags & PIN) || t->t_dlef)
-		seterror(ERR_INRED);
-	    else
-		t->t_dlef = Strsave(p->word);
-	    continue;
-
-    savep:
-	    if (!specp)
-		continue;
-	default:
-	    if (l != 0 && !specp)
-		continue;
-	    if (seterr == 0)
-		av[n] = Strsave(p->word);
-	    n++;
-	    continue;
-	}
-    }
-    if (lp != 0 && !specp) {
-	if (n != 0)
-	    seterror(ERR_BADPLPS);
-	t->t_dtyp = NODE_PAREN;
-	t->t_dspr = syn0(lp, rp, PHERE);
-    }
-    else {
-	if (n == 0)
-	    seterror(ERR_NULLCOM);
-	t->t_dtyp = NODE_COMMAND;
-    }
-    return (t);
-}
-
-void
-freesyn(t)
-    struct command *t;
-{
-    Char **v;
-
-    if (t == 0)
-	return;
-    switch (t->t_dtyp) {
-
-    case NODE_COMMAND:
-	for (v = t->t_dcom; *v; v++)
-	    xfree((ptr_t) * v);
-	xfree((ptr_t) (t->t_dcom));
-	xfree((ptr_t) t->t_dlef);
-	xfree((ptr_t) t->t_drit);
-	break;
-    case NODE_PAREN:
-	freesyn(t->t_dspr);
-	xfree((ptr_t) t->t_dlef);
-	xfree((ptr_t) t->t_drit);
-	break;
-
-    case NODE_AND:
-    case NODE_OR:
-    case NODE_PIPE:
-    case NODE_LIST:
-	freesyn(t->t_dcar), freesyn(t->t_dcdr);
-	break;
-    }
-    xfree((ptr_t) t);
-}
@@ -1,42 +0,0 @@
-/*-
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)pathnames.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-#define	_PATH_BIN		"/bin"
-#define	_PATH_DOTCSHRC		"/etc/csh.cshrc"
-#define	_PATH_DOTLOGIN		"/etc/csh.login"
-#define	_PATH_DOTLOGOUT		"/etc/csh.logout"
-#define	_PATH_LOGIN		"/usr/bin/login"
-#define	_PATH_USRBIN		"/usr/bin"
@@ -1,102 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)proc.h	8.1 (Berkeley) 5/31/93
- * $FreeBSD$
- */
-
-/*
- * Structure for each process the shell knows about:
- *	allocated and filled by pcreate.
- *	flushed by pflush; freeing always happens at top level
- *	    so the interrupt level has less to worry about.
- *	processes are related to "friends" when in a pipeline;
- *	    p_friends links makes a circular list of such jobs
- */
-struct process {
-    struct process *p_next;	/* next in global "proclist" */
-    struct process *p_friends;	/* next in job list (or self) */
-    struct directory *p_cwd;	/* cwd of the job (only in head) */
-    short unsigned p_flags;	/* various job status flags */
-    char    p_reason;		/* reason for entering this state */
-    int     p_index;		/* shorthand job index */
-    int     p_pid;
-    int     p_jobid;		/* pid of job leader */
-    /* if a job is stopped/background p_jobid gives its pgrp */
-    struct timeval p_btime;	/* begin time */
-    struct timeval p_etime;	/* end time */
-    struct rusage p_rusage;
-    Char   *p_command;		/* first PMAXLEN chars of command */
-};
-
-/* flag values for p_flags */
-#define	PRUNNING	(1<<0)	/* running */
-#define	PSTOPPED	(1<<1)	/* stopped */
-#define	PNEXITED	(1<<2)	/* normally exited */
-#define	PAEXITED	(1<<3)	/* abnormally exited */
-#define	PSIGNALED	(1<<4)	/* terminated by a signal != SIGINT */
-
-#define	PALLSTATES	(PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED)
-#define	PNOTIFY		(1<<5)	/* notify async when done */
-#define	PTIME		(1<<6)	/* job times should be printed */
-#define	PAWAITED	(1<<7)	/* top level is waiting for it */
-#define	PFOREGND	(1<<8)	/* started in shells pgrp */
-#define	PDUMPED		(1<<9)	/* process dumped core */
-#define	PERR		(1<<10)	/* diagnostic output also piped out */
-#define	PPOU		(1<<11)	/* piped output */
-#define	PREPORTED	(1<<12)	/* status has been reported */
-#define	PINTERRUPTED	(1<<13)	/* job stopped via interrupt signal */
-#define	PPTIME		(1<<14)	/* time individual process */
-#define	PNEEDNOTE	(1<<15)	/* notify as soon as practical */
-
-#define	PMAXLEN		80
-
-/* defines for arguments to pprint */
-#define	NUMBER		01
-#define	NAME		02
-#define	REASON		04
-#define	AMPERSAND	010
-#define	FANCY		020
-#define	SHELLDIR	040	/* print shell's dir if not the same */
-#define	JOBDIR		0100	/* print job's dir if not the same */
-#define	AREASON		0200
-
-struct process proclist;	/* list head of all processes */
-bool    pnoprocesses;		/* pchild found nothing to wait for */
-
-struct process *pholdjob;	/* one level stack of current jobs */
-
-struct process *pcurrjob;	/* current job */
-struct process *pcurrent;	/* current job in table */
-struct process *pprevious;	/* previous job in table */
-
-int    pmaxindex;		/* current maximum job index */
@@ -1,650 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)sem.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "proc.h"
-#include "extern.h"
-
-static void	 vffree __P((int));
-static Char	*splicepipe __P((struct command *t, Char *));
-static void	 doio __P((struct command *t, int *, int *));
-static void	 chkclob __P((char *));
-
-void
-execute(t, wanttty, pipein, pipeout)
-    struct command *t;
-    int     wanttty, *pipein, *pipeout;
-{
-    bool    forked = 0;
-    struct biltins *bifunc;
-    int     pid = 0;
-    int     pv[2];
-
-    static int csigmask;
-
-    static int ocsigmask;
-    static int onosigchld = 0;
-    static int nosigchld = 0;
-
-    UNREGISTER(forked);
-    UNREGISTER(bifunc);
-    UNREGISTER(wanttty);
-
-    if (t == 0)
-	return;
-
-    if (t->t_dflg & F_AMPERSAND)
-	wanttty = 0;
-    switch (t->t_dtyp) {
-
-    case NODE_COMMAND:
-	if ((t->t_dcom[0][0] & (QUOTE | TRIM)) == QUOTE)
-	    (void) Strcpy(t->t_dcom[0], t->t_dcom[0] + 1);
-	if ((t->t_dflg & F_REPEAT) == 0)
-	    Dfix(t);		/* $ " ' \ */
-	if (t->t_dcom[0] == 0)
-	    return;
-	/* fall into... */
-
-    case NODE_PAREN:
-	if (t->t_dflg & F_PIPEOUT)
-	    mypipe(pipeout);
-	/*
-	 * Must do << early so parent will know where input pointer should be.
-	 * If noexec then this is all we do.
-	 */
-	if (t->t_dflg & F_READ) {
-	    (void) close(0);
-	    heredoc(t->t_dlef);
-	    if (noexec)
-		(void) close(0);
-	}
-
-	set(STRstatus, Strsave(STR0));
-
-	/*
-	 * This mess is the necessary kludge to handle the prefix builtins:
-	 * nice, nohup, time.  These commands can also be used by themselves,
-	 * and this is not handled here. This will also work when loops are
-	 * parsed.
-	 */
-	while (t->t_dtyp == NODE_COMMAND)
-	    if (eq(t->t_dcom[0], STRnice))
-		if (t->t_dcom[1])
-		    if (strchr("+-", t->t_dcom[1][0]))
-			if (t->t_dcom[2]) {
-			    setname("nice");
-			    t->t_nice =
-				getn(t->t_dcom[1]);
-			    lshift(t->t_dcom, 2);
-			    t->t_dflg |= F_NICE;
-			}
-			else
-			    break;
-		    else {
-			t->t_nice = 4;
-			lshift(t->t_dcom, 1);
-			t->t_dflg |= F_NICE;
-		    }
-		else
-		    break;
-	    else if (eq(t->t_dcom[0], STRnohup))
-		if (t->t_dcom[1]) {
-		    t->t_dflg |= F_NOHUP;
-		    lshift(t->t_dcom, 1);
-		}
-		else
-		    break;
-	    else if (eq(t->t_dcom[0], STRtime))
-		if (t->t_dcom[1]) {
-		    t->t_dflg |= F_TIME;
-		    lshift(t->t_dcom, 1);
-		}
-		else
-		    break;
-	    else
-		break;
-
-	/* is it a command */
-	if (t->t_dtyp == NODE_COMMAND) {
-	    /*
-	     * Check if we have a builtin function and remember which one.
-	     */
-	    bifunc = isbfunc(t);
- 	    if (noexec) {
-		/*
-		 * Continue for builtins that are part of the scripting language
-		 */
-		if (bifunc->bfunct != dobreak   && bifunc->bfunct != docontin &&
-		    bifunc->bfunct != doelse    && bifunc->bfunct != doend    &&
-		    bifunc->bfunct != doforeach && bifunc->bfunct != dogoto   &&
-		    bifunc->bfunct != doif      && bifunc->bfunct != dorepeat &&
-		    bifunc->bfunct != doswbrk   && bifunc->bfunct != doswitch &&
-		    bifunc->bfunct != dowhile   && bifunc->bfunct != dozip)
-		    break;
-	    }
-	}
-	else {			/* not a command */
-	    bifunc = NULL;
-	    if (noexec)
-		break;
-	}
-
-	/*
-	 * We fork only if we are timed, or are not the end of a parenthesized
-	 * list and not a simple builtin function. Simple meaning one that is
-	 * not pipedout, niced, nohupped, or &'d. It would be nice(?) to not
-	 * fork in some of these cases.
-	 */
-	/*
-	 * Prevent forking cd, pushd, popd, chdir cause this will cause the
-	 * shell not to change dir!
-	 */
-	if (bifunc && (bifunc->bfunct == dochngd ||
-		       bifunc->bfunct == dopushd ||
-		       bifunc->bfunct == dopopd))
-	    t->t_dflg &= ~(F_NICE);
-	if (((t->t_dflg & F_TIME) || ((t->t_dflg & F_NOFORK) == 0 &&
-	     (!bifunc || t->t_dflg &
-	      (F_PIPEOUT | F_AMPERSAND | F_NICE | F_NOHUP)))) ||
-	/*
-	 * We have to fork for eval too.
-	 */
-	    (bifunc && (t->t_dflg & (F_PIPEIN | F_PIPEOUT)) != 0 &&
-	     bifunc->bfunct == doeval)) {
-	    if (t->t_dtyp == NODE_PAREN ||
-		t->t_dflg & (F_REPEAT | F_AMPERSAND) || bifunc) {
-		forked++;
-		/*
-		 * We need to block SIGCHLD here, so that if the process does
-		 * not die before we can set the process group
-		 */
-		if (wanttty >= 0 && !nosigchld) {
-		    csigmask = sigblock(sigmask(SIGCHLD));
-		    nosigchld = 1;
-		}
-
-		pid = pfork(t, wanttty);
-		if (pid == 0 && nosigchld) {
-		    (void) sigsetmask(csigmask);
-		    nosigchld = 0;
-		}
-		else if (pid != 0 && (t->t_dflg & F_AMPERSAND))
-		    backpid = pid;
-
-	    }
-	    else {
-		int     ochild, osetintr, ohaderr, odidfds;
-		int     oSHIN, oSHOUT, oSHERR, oOLDSTD, otpgrp;
-		int	omask;
-
-		/*
-		 * Prepare for the vfork by saving everything that the child
-		 * corrupts before it exec's. Note that in some signal
-		 * implementations which keep the signal info in user space
-		 * (e.g. Sun's) it will also be necessary to save and restore
-		 * the current sigvec's for the signals the child touches
-		 * before it exec's.
-		 */
-		if (wanttty >= 0 && !nosigchld && !noexec) {
-		    csigmask = sigblock(sigmask(SIGCHLD));
-		    nosigchld = 1;
-		}
-		omask = sigblock(sigmask(SIGCHLD) | sigmask(SIGINT));
-		ochild = child;
-		osetintr = setintr;
-		ohaderr = haderr;
-		odidfds = didfds;
-		oSHIN = SHIN;
-		oSHOUT = SHOUT;
-		oSHERR = SHERR;
-		oOLDSTD = OLDSTD;
-		otpgrp = tpgrp;
-		ocsigmask = csigmask;
-		onosigchld = nosigchld;
-		Vsav = Vdp = 0;
-		Vexpath = 0;
-		Vt = 0;
-		pid = vfork();
-
-		if (pid < 0) {
-		    (void) sigsetmask(omask);
-		    stderror(ERR_NOPROC);
-		}
-		forked++;
-		if (pid) {	/* parent */
-		    child = ochild;
-		    setintr = osetintr;
-		    haderr = ohaderr;
-		    didfds = odidfds;
-		    SHIN = oSHIN;
-		    SHOUT = oSHOUT;
-		    SHERR = oSHERR;
-		    OLDSTD = oOLDSTD;
-		    tpgrp = otpgrp;
-		    csigmask = ocsigmask;
-		    nosigchld = onosigchld;
-
-		    xfree((ptr_t) Vsav);
-		    Vsav = 0;
-		    xfree((ptr_t) Vdp);
-		    Vdp = 0;
-		    xfree((ptr_t) Vexpath);
-		    Vexpath = 0;
-		    blkfree((Char **) Vt);
-		    Vt = 0;
-		    /* this is from pfork() */
-		    palloc(pid, t);
-		    (void) sigsetmask(omask);
-		}
-		else {		/* child */
-		    /* this is from pfork() */
-		    int     pgrp;
-		    bool    ignint = 0;
-
-		    if (nosigchld) {
-			(void) sigsetmask(csigmask);
-			nosigchld = 0;
-		    }
-
-		    if (setintr)
-			ignint =
-			    (tpgrp == -1 &&
-			     (t->t_dflg & F_NOINTERRUPT))
-			    || (gointr && eq(gointr, STRminus));
-		    pgrp = pcurrjob ? pcurrjob->p_jobid : getpid();
-		    child++;
-		    if (setintr) {
-			setintr = 0;
-			if (ignint) {
-			    (void) signal(SIGINT, SIG_IGN);
-			    (void) signal(SIGQUIT, SIG_IGN);
-			}
-			else {
-			    (void) signal(SIGINT, vffree);
-			    (void) signal(SIGQUIT, SIG_DFL);
-			}
-
-			if (wanttty >= 0) {
-			    (void) signal(SIGTSTP, SIG_DFL);
-			    (void) signal(SIGTTIN, SIG_DFL);
-			    (void) signal(SIGTTOU, SIG_DFL);
-			}
-
-			(void) signal(SIGTERM, parterm);
-		    }
-		    else if (tpgrp == -1 &&
-			     (t->t_dflg & F_NOINTERRUPT)) {
-			(void) signal(SIGINT, SIG_IGN);
-			(void) signal(SIGQUIT, SIG_IGN);
-		    }
-
-		    pgetty(wanttty, pgrp);
-		    if (t->t_dflg & F_NOHUP)
-			(void) signal(SIGHUP, SIG_IGN);
-		    if (t->t_dflg & F_NICE)
-			(void) setpriority(PRIO_PROCESS, 0, t->t_nice);
-		}
-
-	    }
-	}
-	if (pid != 0) {
-	    /*
-	     * It would be better if we could wait for the whole job when we
-	     * knew the last process had been started.  Pwait, in fact, does
-	     * wait for the whole job anyway, but this test doesn't really
-	     * express our intentions.
-	     */
-	    if (didfds == 0 && t->t_dflg & F_PIPEIN) {
-		(void) close(pipein[0]);
-		(void) close(pipein[1]);
-	    }
-	    if ((t->t_dflg & F_PIPEOUT) == 0) {
-		if (nosigchld) {
-		    (void) sigsetmask(csigmask);
-		    nosigchld = 0;
-		}
-		if ((t->t_dflg & F_AMPERSAND) == 0)
-		    pwait();
-	    }
-	    break;
-	}
-	doio(t, pipein, pipeout);
-	if (t->t_dflg & F_PIPEOUT) {
-	    (void) close(pipeout[0]);
-	    (void) close(pipeout[1]);
-	}
-	/*
-	 * Perform a builtin function. If we are not forked, arrange for
-	 * possible stopping
-	 */
-	if (bifunc) {
-	    func(t, bifunc);
-	    if (forked)
-		exitstat();
-	    break;
-	}
-	if (t->t_dtyp != NODE_PAREN) {
-	    doexec(NULL, t);
-	    /* NOTREACHED */
-	}
-	/*
-	 * For () commands must put new 0,1,2 in FSH* and recurse
-	 */
-	OLDSTD = dcopy(0, FOLDSTD);
-	SHOUT = dcopy(1, FSHOUT);
-	SHERR = dcopy(2, FSHERR);
-	(void) close(SHIN);
-	SHIN = -1;
-	didfds = 0;
-	wanttty = -1;
-	t->t_dspr->t_dflg |= t->t_dflg & F_NOINTERRUPT;
-	execute(t->t_dspr, wanttty, NULL, NULL);
-	exitstat();
-
-    case NODE_PIPE:
-	t->t_dcar->t_dflg |= F_PIPEOUT |
-	    (t->t_dflg & (F_PIPEIN | F_AMPERSAND | F_STDERR | F_NOINTERRUPT));
-	execute(t->t_dcar, wanttty, pipein, pv);
-	t->t_dcdr->t_dflg |= F_PIPEIN | (t->t_dflg &
-			(F_PIPEOUT | F_AMPERSAND | F_NOFORK | F_NOINTERRUPT));
-	if (wanttty > 0)
-	    wanttty = 0;	/* got tty already */
-	execute(t->t_dcdr, wanttty, pv, pipeout);
-	break;
-
-    case NODE_LIST:
-	if (t->t_dcar) {
-	    t->t_dcar->t_dflg |= t->t_dflg & F_NOINTERRUPT;
-	    execute(t->t_dcar, wanttty, NULL, NULL);
-	    /*
-	     * In strange case of A&B make a new job after A
-	     */
-	    if (t->t_dcar->t_dflg & F_AMPERSAND && t->t_dcdr &&
-		(t->t_dcdr->t_dflg & F_AMPERSAND) == 0)
-		pendjob();
-	}
-	if (t->t_dcdr) {
-	    t->t_dcdr->t_dflg |= t->t_dflg &
-		(F_NOFORK | F_NOINTERRUPT);
-	    execute(t->t_dcdr, wanttty, NULL, NULL);
-	}
-	break;
-
-    case NODE_OR:
-    case NODE_AND:
-	if (t->t_dcar) {
-	    t->t_dcar->t_dflg |= t->t_dflg & F_NOINTERRUPT;
-	    execute(t->t_dcar, wanttty, NULL, NULL);
-	    if ((getn(value(STRstatus)) == 0) !=
-		(t->t_dtyp == NODE_AND))
-		return;
-	}
-	if (t->t_dcdr) {
-	    t->t_dcdr->t_dflg |= t->t_dflg &
-		(F_NOFORK | F_NOINTERRUPT);
-	    execute(t->t_dcdr, wanttty, NULL, NULL);
-	}
-	break;
-    }
-    /*
-     * Fall through for all breaks from switch
-     *
-     * If there will be no more executions of this command, flush all file
-     * descriptors. Places that turn on the F_REPEAT bit are responsible for
-     * doing donefds after the last re-execution
-     */
-    if (didfds && !(t->t_dflg & F_REPEAT))
-	donefds();
-}
-
-static void
-vffree(i)
-int i;
-{
-    Char **v;
-
-    if ((v = gargv) != NULL) {
-	gargv = 0;
-	xfree((ptr_t) v);
-    }
-    if ((v = pargv) != NULL) {
-	pargv = 0;
-	xfree((ptr_t) v);
-    }
-    _exit(i);
-}
-
-/*
- * Expand and glob the words after an i/o redirection.
- * If more than one word is generated, then update the command vector.
- *
- * This is done differently in all the shells:
- * 1. in the Bourne shell and ksh globbing is not performed
- * 2. Bash/csh say ambiguous
- * 3. zsh does i/o to/from all the files
- * 4. itcsh concatenates the words.
- *
- * I don't know what is best to do. I think that Ambiguous is better
- * than restructuring the command vector, because the user can get
- * unexpected results. In any case, the command vector restructuring
- * code is present and the user can choose it by setting noambiguous
- */
-static Char *
-splicepipe(t, cp)
-    struct command *t;
-    Char *cp;	/* word after < or > */
-{
-    Char *blk[2];
-
-    if (adrof(STRnoambiguous)) {
-	Char **pv;
-
-	blk[0] = Dfix1(cp); /* expand $ */
-	blk[1] = NULL;
-
-	gflag = 0, tglob(blk);
-	if (gflag) {
-	    pv = globall(blk);
-	    if (pv == NULL) {
-		setname(vis_str(blk[0]));
-		xfree((ptr_t) blk[0]);
-		stderror(ERR_NAME | ERR_NOMATCH);
-	    }
-	    gargv = NULL;
-	    if (pv[1] != NULL) { /* we need to fix the command vector */
-		Char **av = blkspl(t->t_dcom, &pv[1]);
-		xfree((ptr_t) t->t_dcom);
-		t->t_dcom = av;
-	    }
-	    xfree((ptr_t) blk[0]);
-	    blk[0] = pv[0];
-	    xfree((ptr_t) pv);
-	}
-    }
-    else {
-	blk[0] = globone(blk[1] = Dfix1(cp), G_ERROR);
-	xfree((ptr_t) blk[1]);
-    }
-    return(blk[0]);
-}
-
-/*
- * Perform io redirection.
- * We may or maynot be forked here.
- */
-static void
-doio(t, pipein, pipeout)
-    struct command *t;
-    int    *pipein, *pipeout;
-{
-    int fd;
-    Char *cp;
-    int flags = t->t_dflg;
-
-    if (didfds || (flags & F_REPEAT))
-	return;
-    if ((flags & F_READ) == 0) {/* F_READ already done */
-	if (t->t_dlef) {
-	    char    tmp[MAXPATHLEN+1];
-
-	    /*
-	     * so < /dev/std{in,out,err} work
-	     */
-	    (void) dcopy(SHIN, 0);
-	    (void) dcopy(SHOUT, 1);
-	    (void) dcopy(SHERR, 2);
-	    cp = splicepipe(t, t->t_dlef);
-	    (void) strncpy(tmp, short2str(cp), MAXPATHLEN);
-	    tmp[MAXPATHLEN] = '\0';
-	    xfree((ptr_t) cp);
-	    if ((fd = open(tmp, O_RDONLY)) < 0)
-		stderror(ERR_SYSTEM, tmp, strerror(errno));
-	    (void) dmove(fd, 0);
-	}
-	else if (flags & F_PIPEIN) {
-	    (void) close(0);
-	    (void) dup(pipein[0]);
-	    (void) close(pipein[0]);
-	    (void) close(pipein[1]);
-	}
-	else if ((flags & F_NOINTERRUPT) && tpgrp == -1) {
-	    (void) close(0);
-	    (void) open(_PATH_DEVNULL, O_RDONLY);
-	}
-	else {
-	    (void) close(0);
-	    (void) dup(OLDSTD);
-	    (void) ioctl(0, FIONCLEX, NULL);
-	}
-    }
-    if (t->t_drit) {
-	char    tmp[MAXPATHLEN+1];
-
-	cp = splicepipe(t, t->t_drit);
-	(void) strncpy(tmp, short2str(cp), MAXPATHLEN);
-	tmp[MAXPATHLEN] = '\0';
-	xfree((ptr_t) cp);
-	/*
-	 * so > /dev/std{out,err} work
-	 */
-	(void) dcopy(SHOUT, 1);
-	(void) dcopy(SHERR, 2);
-	if ((flags & F_APPEND) &&
-#ifdef O_APPEND
-	    (fd = open(tmp, O_WRONLY | O_APPEND)) >= 0);
-#else
-	    (fd = open(tmp, O_WRONLY)) >= 0)
-	    (void) lseek(1, (off_t) 0, L_XTND);
-#endif
-	else {
-	    if (!(flags & F_OVERWRITE) && adrof(STRnoclobber)) {
-		if (flags & F_APPEND)
-		    stderror(ERR_SYSTEM, tmp, strerror(errno));
-		chkclob(tmp);
-	    }
-	    if ((fd = creat(tmp, 0666)) < 0)
-		stderror(ERR_SYSTEM, tmp, strerror(errno));
-	}
-	(void) dmove(fd, 1);
-    }
-    else if (flags & F_PIPEOUT) {
-	(void) close(1);
-	(void) dup(pipeout[1]);
-    }
-    else {
-	(void) close(1);
-	(void) dup(SHOUT);
-	(void) ioctl(1, FIONCLEX, NULL);
-    }
-
-    (void) close(2);
-    if (flags & F_STDERR) {
-	(void) dup(1);
-    }
-    else {
-	(void) dup(SHERR);
-	(void) ioctl(2, FIONCLEX, NULL);
-    }
-    didfds = 1;
-}
-
-void
-mypipe(pv)
-    int *pv;
-{
-
-    if (pipe(pv) < 0)
-	goto oops;
-    pv[0] = dmove(pv[0], -1);
-    pv[1] = dmove(pv[1], -1);
-    if (pv[0] >= 0 && pv[1] >= 0)
-	return;
-oops:
-    stderror(ERR_PIPE);
-}
-
-static void
-chkclob(cp)
-    char *cp;
-{
-    struct stat stb;
-
-    if (stat(cp, &stb) < 0)
-	return;
-    if (S_ISCHR(stb.st_mode))
-	return;
-    stderror(ERR_EXISTS, cp);
-}
@@ -1,847 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)set.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-#include <unistd.h>
-
-#include "csh.h"
-#include "extern.h"
-
-static Char	*getinx __P((Char *, int *));
-static void	 asx __P((Char *, int, Char *));
-static struct varent
-		*getvx __P((Char *, int));
-static Char	*xset __P((Char *, Char ***));
-static Char	*operate __P((int, Char *, Char *));
-static void	 putn1 __P((int));
-static struct varent
-		*madrof __P((Char *, struct varent *));
-static void	 unsetv1 __P((struct varent *));
-static void	 exportpath __P((Char **));
-static void	 balance __P((struct varent *, int, int));
-
-
-/*
- * C Shell
- */
-
-void
-/*ARGSUSED*/
-doset(v, t)
-    Char **v;
-    struct command *t;
-{
-    Char *p;
-    Char   *vp, op;
-    Char  **vecp;
-    bool    hadsub;
-    int     subscr;
-
-    v++;
-    p = *v++;
-    if (p == 0) {
-	prvars();
-	return;
-    }
-    do {
-	hadsub = 0;
-	vp = p;
-	if (letter(*p))
-	    for (; alnum(*p); p++)
-		continue;
-	if (vp == p || !letter(*vp))
-	    stderror(ERR_NAME | ERR_VARBEGIN);
-	if ((p - vp) > MAXVARLEN) {
-	    stderror(ERR_NAME | ERR_VARTOOLONG);
-	    return;
-	}
-	if (*p == '[') {
-	    hadsub++;
-	    p = getinx(p, &subscr);
-	}
-	if ((op = *p) != '\0') {
-	    *p++ = 0;
-	    if (*p == 0 && *v && **v == '(')
-		p = *v++;
-	}
-	else if (*v && eq(*v, STRequal)) {
-	    op = '=', v++;
-	    if (*v)
-		p = *v++;
-	}
-	if (op && op != '=')
-	    stderror(ERR_NAME | ERR_SYNTAX);
-	if (eq(p, STRLparen)) {
-	    Char **e = v;
-
-	    if (hadsub)
-		stderror(ERR_NAME | ERR_SYNTAX);
-	    for (;;) {
-		if (!*e)
-		    stderror(ERR_NAME | ERR_MISSING, ')');
-		if (**e == ')')
-		    break;
-		e++;
-	    }
-	    p = *e;
-	    *e = 0;
-	    vecp = saveblk(v);
-	    set1(vp, vecp, &shvhed);
-	    *e = p;
-	    v = e + 1;
-	}
-	else if (hadsub)
-	    asx(vp, subscr, Strsave(p));
-	else
-	    set(vp, Strsave(p));
-	if (eq(vp, STRpath)) {
-	    exportpath(adrof(STRpath)->vec);
-	    dohash(NULL, NULL);
-	}
-	else if (eq(vp, STRhistchars)) {
-	    Char *pn = value(STRhistchars);
-
-	    HIST = *pn++;
-	    HISTSUB = *pn;
-	}
-	else if (eq(vp, STRuser)) {
-	    Setenv(STRUSER, value(vp));
-	    Setenv(STRLOGNAME, value(vp));
-	}
-	else if (eq(vp, STRwordchars)) {
-	    word_chars = value(vp);
-	}
-	else if (eq(vp, STRterm))
-	    Setenv(STRTERM, value(vp));
-	else if (eq(vp, STRhome)) {
-	    Char *cp;
-
-	    cp = Strsave(value(vp));	/* get the old value back */
-
-	    /*
-	     * convert to canonical pathname (possibly resolving symlinks)
-	     */
-	    cp = dcanon(cp, cp);
-
-	    set(vp, Strsave(cp));	/* have to save the new val */
-
-	    /* and now mirror home with HOME */
-	    Setenv(STRHOME, cp);
-	    /* fix directory stack for new tilde home */
-	    dtilde();
-	    xfree((ptr_t) cp);
-	}
-#ifdef FILEC
-	else if (eq(vp, STRfilec))
-	    filec = 1;
-#endif
-    } while ((p = *v++) != NULL);
-}
-
-static Char *
-getinx(cp, ip)
-    Char *cp;
-    int *ip;
-{
-
-    *ip = 0;
-    *cp++ = 0;
-    while (*cp && Isdigit(*cp))
-	*ip = *ip * 10 + *cp++ - '0';
-    if (*cp++ != ']')
-	stderror(ERR_NAME | ERR_SUBSCRIPT);
-    return (cp);
-}
-
-static void
-asx(vp, subscr, p)
-    Char   *vp;
-    int     subscr;
-    Char   *p;
-{
-    struct varent *v = getvx(vp, subscr);
-
-    xfree((ptr_t) v->vec[subscr - 1]);
-    v->vec[subscr - 1] = globone(p, G_APPEND);
-}
-
-static struct varent *
-getvx(vp, subscr)
-    Char   *vp;
-    int     subscr;
-{
-    struct varent *v = adrof(vp);
-
-    if (v == 0)
-	udvar(vp);
-    if (subscr < 1 || subscr > blklen(v->vec))
-	stderror(ERR_NAME | ERR_RANGE);
-    return (v);
-}
-
-void
-/*ARGSUSED*/
-dolet(v, t)
-    Char **v;
-    struct command *t;
-{
-    Char *p;
-    Char   *vp, c, op;
-    bool    hadsub;
-    int     subscr;
-
-    v++;
-    p = *v++;
-    if (p == 0) {
-	prvars();
-	return;
-    }
-    do {
-	hadsub = 0;
-	vp = p;
-	if (letter(*p))
-	    for (; alnum(*p); p++)
-		continue;
-	if (vp == p || !letter(*vp))
-	    stderror(ERR_NAME | ERR_VARBEGIN);
-	if ((p - vp) > MAXVARLEN)
-	    stderror(ERR_NAME | ERR_VARTOOLONG);
-	if (*p == '[') {
-	    hadsub++;
-	    p = getinx(p, &subscr);
-	}
-	if (*p == 0 && *v)
-	    p = *v++;
-	if ((op = *p) != '\0')
-	    *p++ = 0;
-	else
-	    stderror(ERR_NAME | ERR_ASSIGN);
-
-	if (*p == '\0' && *v == NULL)
-	    stderror(ERR_NAME | ERR_ASSIGN);
-
-	vp = Strsave(vp);
-	if (op == '=') {
-	    c = '=';
-	    p = xset(p, &v);
-	}
-	else {
-	    c = *p++;
-	    if (any("+-", c)) {
-		if (c != op || *p)
-		    stderror(ERR_NAME | ERR_UNKNOWNOP);
-		p = Strsave(STR1);
-	    }
-	    else {
-		if (any("<>", op)) {
-		    if (c != op)
-			stderror(ERR_NAME | ERR_UNKNOWNOP);
-		    c = *p++;
-		    stderror(ERR_NAME | ERR_SYNTAX);
-		}
-		if (c != '=')
-		    stderror(ERR_NAME | ERR_UNKNOWNOP);
-		p = xset(p, &v);
-	    }
-	}
-	if (op == '=')
-	    if (hadsub)
-		asx(vp, subscr, p);
-	    else
-		set(vp, p);
-	else if (hadsub) {
-	    struct varent *gv = getvx(vp, subscr);
-
-	    asx(vp, subscr, operate(op, gv->vec[subscr - 1], p));
-	}
-	else
-	    set(vp, operate(op, value(vp), p));
-	if (eq(vp, STRpath)) {
-	    exportpath(adrof(STRpath)->vec);
-	    dohash(NULL, NULL);
-	}
-	xfree((ptr_t) vp);
-	if (c != '=')
-	    xfree((ptr_t) p);
-    } while ((p = *v++) != NULL);
-}
-
-static Char *
-xset(cp, vp)
-    Char   *cp, ***vp;
-{
-    Char *dp;
-
-    if (*cp) {
-	dp = Strsave(cp);
-	--(*vp);
-	xfree((ptr_t) ** vp);
-	**vp = dp;
-    }
-    return (putn(expr(vp)));
-}
-
-static Char *
-operate(op, vp, p)
-    int    op;
-    Char  *vp, *p;
-{
-    Char    opr[2];
-    Char   *vec[5];
-    Char **v = vec;
-    Char  **vecp = v;
-    int i;
-
-    if (op != '=') {
-	if (*vp)
-	    *v++ = vp;
-	opr[0] = op;
-	opr[1] = 0;
-	*v++ = opr;
-	if (op == '<' || op == '>')
-	    *v++ = opr;
-    }
-    *v++ = p;
-    *v++ = 0;
-    i = expr(&vecp);
-    if (*vecp)
-	stderror(ERR_NAME | ERR_EXPRESSION);
-    return (putn(i));
-}
-
-static Char *putp;
-
-Char   *
-putn(n)
-    int n;
-{
-    int     num;
-    static Char number[15];
-
-    putp = number;
-    if (n < 0) {
-	n = -n;
-	*putp++ = '-';
-    }
-    num = 2;			/* confuse lint */
-    if (sizeof(int) == num && ((unsigned int) n) == 0x8000) {
-	*putp++ = '3';
-	n = 2768;
-#ifdef pdp11
-    }
-#else
-    }
-    else {
-	num = 4;		/* confuse lint */
-	if (sizeof(int) == num && ((unsigned int) n) == 0x80000000) {
-	    *putp++ = '2';
-	    n = 147483648;
-	}
-    }
-#endif
-    putn1(n);
-    *putp = 0;
-    return (Strsave(number));
-}
-
-static void
-putn1(n)
-    int n;
-{
-    if (n > 9)
-	putn1(n / 10);
-    *putp++ = n % 10 + '0';
-}
-
-int
-getn(cp)
-    Char *cp;
-{
-    int n;
-    int     sign;
-
-    sign = 0;
-    if (cp[0] == '+' && cp[1])
-	cp++;
-    if (*cp == '-') {
-	sign++;
-	cp++;
-	if (!Isdigit(*cp))
-	    stderror(ERR_NAME | ERR_BADNUM);
-    }
-    n = 0;
-    while (Isdigit(*cp))
-	n = n * 10 + *cp++ - '0';
-    if (*cp)
-	stderror(ERR_NAME | ERR_BADNUM);
-    return (sign ? -n : n);
-}
-
-Char   *
-value1(var, head)
-    Char   *var;
-    struct varent *head;
-{
-    struct varent *vp;
-
-    vp = adrof1(var, head);
-    return (vp == 0 || vp->vec[0] == 0 ? STRNULL : vp->vec[0]);
-}
-
-static struct varent *
-madrof(pat, vp)
-    Char   *pat;
-    struct varent *vp;
-{
-    struct varent *vp1;
-
-    for (; vp; vp = vp->v_right) {
-	if (vp->v_left && (vp1 = madrof(pat, vp->v_left)))
-	    return vp1;
-	if (Gmatch(vp->v_name, pat))
-	    return vp;
-    }
-    return vp;
-}
-
-struct varent *
-adrof1(name, v)
-    Char *name;
-    struct varent *v;
-{
-    int cmp;
-
-    v = v->v_left;
-    while (v && ((cmp = *name - *v->v_name) ||
-		 (cmp = Strcmp(name, v->v_name))))
-	if (cmp < 0)
-	    v = v->v_left;
-	else
-	    v = v->v_right;
-    return v;
-}
-
-/*
- * The caller is responsible for putting value in a safe place
- */
-void
-set(var, val)
-    Char   *var, *val;
-{
-    Char **vec = (Char **) xmalloc((size_t) (2 * sizeof(Char **)));
-
-    vec[0] = val;
-    vec[1] = 0;
-    set1(var, vec, &shvhed);
-}
-
-void
-set1(var, vec, head)
-    Char   *var, **vec;
-    struct varent *head;
-{
-    Char **oldv = vec;
-
-    gflag = 0;
-    tglob(oldv);
-    if (gflag) {
-	vec = globall(oldv);
-	if (vec == 0) {
-	    blkfree(oldv);
-	    stderror(ERR_NAME | ERR_NOMATCH);
-	    return;
-	}
-	blkfree(oldv);
-	gargv = 0;
-    }
-    setq(var, vec, head);
-}
-
-
-void
-setq(name, vec, p)
-    Char   *name, **vec;
-    struct varent *p;
-{
-    struct varent *c;
-    int f;
-
-    f = 0;			/* tree hangs off the header's left link */
-    while ((c = p->v_link[f]) != NULL) {
-	if ((f = *name - *c->v_name) == 0 &&
-	    (f = Strcmp(name, c->v_name)) == 0) {
-	    blkfree(c->vec);
-	    goto found;
-	}
-	p = c;
-	f = f > 0;
-    }
-    p->v_link[f] = c = (struct varent *) xmalloc((size_t) sizeof(struct varent));
-    c->v_name = Strsave(name);
-    c->v_bal = 0;
-    c->v_left = c->v_right = 0;
-    c->v_parent = p;
-    balance(p, f, 0);
-found:
-    trim(c->vec = vec);
-}
-
-void
-/*ARGSUSED*/
-unset(v, t)
-    Char **v;
-    struct command *t;
-{
-    unset1(v, &shvhed);
-#ifdef FILEC
-    if (adrof(STRfilec) == 0)
-	filec = 0;
-#endif
-    if (adrof(STRhistchars) == 0) {
-	HIST = '!';
-	HISTSUB = '^';
-    }
-    if (adrof(STRwordchars) == 0)
-	word_chars = STR_WORD_CHARS;
-}
-
-void
-unset1(v, head)
-    Char *v[];
-    struct varent *head;
-{
-    struct varent *vp;
-    int cnt;
-
-    while (*++v) {
-	cnt = 0;
-	while ((vp = madrof(*v, head->v_left)) != NULL)
-	    unsetv1(vp), cnt++;
-	if (cnt == 0)
-	    setname(vis_str(*v));
-    }
-}
-
-void
-unsetv(var)
-    Char   *var;
-{
-    struct varent *vp;
-
-    if ((vp = adrof1(var, &shvhed)) == 0)
-	udvar(var);
-    unsetv1(vp);
-}
-
-static void
-unsetv1(p)
-    struct varent *p;
-{
-    struct varent *c, *pp;
-    int f;
-
-    /*
-     * Free associated memory first to avoid complications.
-     */
-    blkfree(p->vec);
-    xfree((ptr_t) p->v_name);
-    /*
-     * If p is missing one child, then we can move the other into where p is.
-     * Otherwise, we find the predecessor of p, which is guaranteed to have no
-     * right child, copy it into p, and move it's left child into it.
-     */
-    if (p->v_right == 0)
-	c = p->v_left;
-    else if (p->v_left == 0)
-	c = p->v_right;
-    else {
-	for (c = p->v_left; c->v_right; c = c->v_right)
-	    continue;
-	p->v_name = c->v_name;
-	p->vec = c->vec;
-	p = c;
-	c = p->v_left;
-    }
-    /*
-     * Move c into where p is.
-     */
-    pp = p->v_parent;
-    f = pp->v_right == p;
-    if ((pp->v_link[f] = c) != NULL)
-	c->v_parent = pp;
-    /*
-     * Free the deleted node, and rebalance.
-     */
-    xfree((ptr_t) p);
-    balance(pp, f, 1);
-}
-
-void
-setNS(cp)
-    Char   *cp;
-{
-    set(cp, Strsave(STRNULL));
-}
-
-void
-/*ARGSUSED*/
-shift(v, t)
-    Char **v;
-    struct command *t;
-{
-    struct varent *argv;
-    Char *name;
-
-    v++;
-    name = *v;
-    if (name == 0)
-	name = STRargv;
-    else
-	(void) strip(name);
-    argv = adrof(name);
-    if (argv == 0)
-	udvar(name);
-    if (argv->vec[0] == 0)
-	stderror(ERR_NAME | ERR_NOMORE);
-    lshift(argv->vec, 1);
-}
-
-static void
-exportpath(val)
-    Char  **val;
-{
-    Char    exppath[BUFSIZ];
-
-    exppath[0] = 0;
-    if (val)
-	while (*val) {
-	    if (Strlen(*val) + Strlen(exppath) + 2 > BUFSIZ) {
-		(void) fprintf(csherr,
-			       "Warning: ridiculously long PATH truncated\n");
-		break;
-	    }
-	    if (**val != '/' && (euid == 0 || uid == 0) &&
-		    (intact || (intty && isatty(SHOUT))))
-		    (void) fprintf(csherr,
-		    "Warning: exported path contains relative components.\n");
-	    (void) Strcat(exppath, *val++);
-	    if (*val == 0 || eq(*val, STRRparen))
-		break;
-	    (void) Strcat(exppath, STRcolon);
-	}
-    Setenv(STRPATH, exppath);
-}
-
-#ifndef lint
- /*
-  * Lint thinks these have null effect
-  */
- /* macros to do single rotations on node p */
-#define rright(p) (\
-	t = (p)->v_left,\
-	(t)->v_parent = (p)->v_parent,\
-	((p)->v_left = t->v_right) ? (t->v_right->v_parent = (p)) : 0,\
-	(t->v_right = (p))->v_parent = t,\
-	(p) = t)
-#define rleft(p) (\
-	t = (p)->v_right,\
-	(t)->v_parent = (p)->v_parent,\
-	((p)->v_right = t->v_left) ? (t->v_left->v_parent = (p)) : 0,\
-	(t->v_left = (p))->v_parent = t,\
-	(p) = t)
-#else
-struct varent *
-rleft(p)
-    struct varent *p;
-{
-    return (p);
-}
-struct varent *
-rright(p)
-    struct varent *p;
-{
-    return (p);
-}
-
-#endif				/* ! lint */
-
-
-/*
- * Rebalance a tree, starting at p and up.
- * F == 0 means we've come from p's left child.
- * D == 1 means we've just done a delete, otherwise an insert.
- */
-static void
-balance(p, f, d)
-    struct varent *p;
-    int f, d;
-{
-    struct varent *pp;
-
-#ifndef lint
-    struct varent *t;	/* used by the rotate macros */
-
-#endif
-    int ff;
-
-    /*
-     * Ok, from here on, p is the node we're operating on; pp is it's parent; f
-     * is the branch of p from which we have come; ff is the branch of pp which
-     * is p.
-     */
-    for (; (pp = p->v_parent) != NULL; p = pp, f = ff) {
-	ff = pp->v_right == p;
-	if (f ^ d) {		/* right heavy */
-	    switch (p->v_bal) {
-	    case -1:		/* was left heavy */
-		p->v_bal = 0;
-		break;
-	    case 0:		/* was balanced */
-		p->v_bal = 1;
-		break;
-	    case 1:		/* was already right heavy */
-		switch (p->v_right->v_bal) {
-		case 1:	/* single rotate */
-		    pp->v_link[ff] = rleft(p);
-		    p->v_left->v_bal = 0;
-		    p->v_bal = 0;
-		    break;
-		case 0:	/* single rotate */
-		    pp->v_link[ff] = rleft(p);
-		    p->v_left->v_bal = 1;
-		    p->v_bal = -1;
-		    break;
-		case -1:	/* double rotate */
-		    (void) rright(p->v_right);
-		    pp->v_link[ff] = rleft(p);
-		    p->v_left->v_bal =
-			p->v_bal < 1 ? 0 : -1;
-		    p->v_right->v_bal =
-			p->v_bal > -1 ? 0 : 1;
-		    p->v_bal = 0;
-		    break;
-		}
-		break;
-	    }
-	}
-	else {			/* left heavy */
-	    switch (p->v_bal) {
-	    case 1:		/* was right heavy */
-		p->v_bal = 0;
-		break;
-	    case 0:		/* was balanced */
-		p->v_bal = -1;
-		break;
-	    case -1:		/* was already left heavy */
-		switch (p->v_left->v_bal) {
-		case -1:	/* single rotate */
-		    pp->v_link[ff] = rright(p);
-		    p->v_right->v_bal = 0;
-		    p->v_bal = 0;
-		    break;
-		case 0:	/* single rotate */
-		    pp->v_link[ff] = rright(p);
-		    p->v_right->v_bal = -1;
-		    p->v_bal = 1;
-		    break;
-		case 1:	/* double rotate */
-		    (void) rleft(p->v_left);
-		    pp->v_link[ff] = rright(p);
-		    p->v_left->v_bal =
-			p->v_bal < 1 ? 0 : -1;
-		    p->v_right->v_bal =
-			p->v_bal > -1 ? 0 : 1;
-		    p->v_bal = 0;
-		    break;
-		}
-		break;
-	    }
-	}
-	/*
-	 * If from insert, then we terminate when p is balanced. If from
-	 * delete, then we terminate when p is unbalanced.
-	 */
-	if ((p->v_bal == 0) ^ d)
-	    break;
-    }
-}
-
-void
-plist(p)
-    struct varent *p;
-{
-    struct varent *c;
-    int len;
-
-    if (setintr)
-	(void) sigsetmask(sigblock(0) & ~sigmask(SIGINT));
-
-    for (;;) {
-	while (p->v_left)
-	    p = p->v_left;
-x:
-	if (p->v_parent == 0)	/* is it the header? */
-	    return;
-	len = blklen(p->vec);
-	(void) fprintf(cshout, "%s\t", short2str(p->v_name));
-	if (len != 1)
-	    (void) fputc('(', cshout);
-	blkpr(cshout, p->vec);
-	if (len != 1)
-	    (void) fputc(')', cshout);
-	(void) fputc('\n', cshout);
-	if (p->v_right) {
-	    p = p->v_right;
-	    continue;
-	}
-	do {
-	    c = p;
-	    p = p->v_parent;
-	} while (p->v_right == c);
-	goto x;
-    }
-}
@@ -1,472 +0,0 @@
-/*-
- * Copyright (c) 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)str.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#define MALLOC_INCR	128
-
-/*
- * tc.str.c: Short string package
- *	     This has been a lesson of how to write buggy code!
- */
-
-#include <sys/types.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-#include <vis.h>
-
-#include "csh.h"
-#include "extern.h"
-
-#ifdef SHORT_STRINGS
-
-Char  **
-blk2short(src)
-    char **src;
-{
-    size_t     n;
-    Char **sdst, **dst;
-
-    /*
-     * Count
-     */
-    for (n = 0; src[n] != NULL; n++)
-	continue;
-    sdst = dst = (Char **) xmalloc((size_t) ((n + 1) * sizeof(Char *)));
-
-    for (; *src != NULL; src++)
-	*dst++ = SAVE(*src);
-    *dst = NULL;
-    return (sdst);
-}
-
-char  **
-short2blk(src)
-    Char **src;
-{
-    size_t     n;
-    char **sdst, **dst;
-
-    /*
-     * Count
-     */
-    for (n = 0; src[n] != NULL; n++)
-	continue;
-    sdst = dst = (char **) xmalloc((size_t) ((n + 1) * sizeof(char *)));
-
-    for (; *src != NULL; src++)
-	*dst++ = strsave(short2str(*src));
-    *dst = NULL;
-    return (sdst);
-}
-
-Char   *
-str2short(src)
-    char *src;
-{
-    static Char *sdst;
-    static size_t dstsize = 0;
-    Char *dst, *edst;
-
-    if (src == NULL)
-	return (NULL);
-
-    if (sdst == (NULL)) {
-	dstsize = MALLOC_INCR;
-	sdst = (Char *) xmalloc((size_t) dstsize * sizeof(Char));
-    }
-
-    dst = sdst;
-    edst = &dst[dstsize];
-    while (*src) {
-	*dst++ = (Char) ((unsigned char) *src++);
-	if (dst == edst) {
-	    dstsize += MALLOC_INCR;
-	    sdst = (Char *) xrealloc((ptr_t) sdst,
-				     (size_t) dstsize * sizeof(Char));
-	    edst = &sdst[dstsize];
-	    dst = &edst[-MALLOC_INCR];
-	}
-    }
-    *dst = 0;
-    return (sdst);
-}
-
-char   *
-short2str(src)
-    Char *src;
-{
-    static char *sdst = NULL;
-    static size_t dstsize = 0;
-    char *dst, *edst;
-
-    if (src == NULL)
-	return (NULL);
-
-    if (sdst == NULL) {
-	dstsize = MALLOC_INCR;
-	sdst = (char *) xmalloc((size_t) dstsize * sizeof(char));
-    }
-    dst = sdst;
-    edst = &dst[dstsize];
-    while (*src) {
-	*dst++ = (char) *src++;
-	if (dst == edst) {
-	    dstsize += MALLOC_INCR;
-	    sdst = (char *) xrealloc((ptr_t) sdst,
-				     (size_t) dstsize * sizeof(char));
-	    edst = &sdst[dstsize];
-	    dst = &edst[-MALLOC_INCR];
-	}
-    }
-    *dst = 0;
-    return (sdst);
-}
-
-Char   *
-s_strcpy(dst, src)
-    Char *dst, *src;
-{
-    Char *sdst;
-
-    sdst = dst;
-    while ((*dst++ = *src++) != '\0')
-	continue;
-    return (sdst);
-}
-
-Char   *
-s_strncpy(dst, src, n)
-    Char *dst, *src;
-    size_t n;
-{
-    Char *sdst;
-
-    if (n == 0)
-	return(dst);
-
-    sdst = dst;
-    do
-	if ((*dst++ = *src++) == '\0') {
-	    while (--n != 0)
-		*dst++ = '\0';
-	    return(sdst);
-	}
-    while (--n != 0);
-    return (sdst);
-}
-
-Char   *
-s_strcat(dst, src)
-    Char *dst, *src;
-{
-    short *sdst;
-
-    sdst = dst;
-    while (*dst++)
-	continue;
-    --dst;
-    while ((*dst++ = *src++) != '\0')
-	continue;
-    return (sdst);
-}
-
-#ifdef NOTUSED
-Char   *
-s_strncat(dst, src, n)
-    Char *dst, *src;
-    size_t n;
-{
-    Char *sdst;
-
-    if (n == 0)
-	return (dst);
-
-    sdst = dst;
-
-    while (*dst++)
-	continue;
-    --dst;
-
-    do
-	if ((*dst++ = *src++) == '\0')
-	    return(sdst);
-    while (--n != 0)
-	continue;
-
-    *dst = '\0';
-    return (sdst);
-}
-
-#endif
-
-Char   *
-s_strchr(str, ch)
-    Char *str;
-    int ch;
-{
-    do
-	if (*str == ch)
-	    return (str);
-    while (*str++);
-    return (NULL);
-}
-
-Char   *
-s_strrchr(str, ch)
-    Char *str;
-    int ch;
-{
-    Char *rstr;
-
-    rstr = NULL;
-    do
-	if (*str == ch)
-	    rstr = str;
-    while (*str++);
-    return (rstr);
-}
-
-size_t
-s_strlen(str)
-    Char *str;
-{
-    size_t n;
-
-    for (n = 0; *str++; n++)
-	continue;
-    return (n);
-}
-
-int
-s_strcmp(str1, str2)
-    Char *str1, *str2;
-{
-    for (; *str1 && *str1 == *str2; str1++, str2++)
-	continue;
-    /*
-     * The following case analysis is necessary so that characters which look
-     * negative collate low against normal characters but high against the
-     * end-of-string NUL.
-     */
-    if (*str1 == '\0' && *str2 == '\0')
-	return (0);
-    else if (*str1 == '\0')
-	return (-1);
-    else if (*str2 == '\0')
-	return (1);
-    else
-	return (*str1 - *str2);
-}
-
-int
-s_strncmp(str1, str2, n)
-    Char *str1, *str2;
-    size_t n;
-{
-    if (n == 0)
-	return (0);
-    do {
-	if (*str1 != *str2) {
-	    /*
-	     * The following case analysis is necessary so that characters
-	     * which look negative collate low against normal characters
-	     * but high against the end-of-string NUL.
-	     */
-	    if (*str1 == '\0')
-		return (-1);
-	    else if (*str2 == '\0')
-		return (1);
-	    else
-		return (*str1 - *str2);
-	    break;
-	}
-        if (*str1 == '\0')
-	    return(0);
-	str1++, str2++;
-    } while (--n != 0);
-    return(0);
-}
-
-Char   *
-s_strsave(s)
-    Char *s;
-{
-    Char   *n;
-    Char *p;
-
-    if (s == 0)
-	s = STRNULL;
-    for (p = s; *p++;)
-	continue;
-    n = p = (Char *) xmalloc((size_t) ((p - s) * sizeof(Char)));
-    while ((*p++ = *s++) != '\0')
-	continue;
-    return (n);
-}
-
-Char   *
-s_strspl(cp, dp)
-    Char   *cp, *dp;
-{
-    Char   *ep;
-    Char *p, *q;
-
-    if (!cp)
-	cp = STRNULL;
-    if (!dp)
-	dp = STRNULL;
-    for (p = cp; *p++;)
-	continue;
-    for (q = dp; *q++;)
-	continue;
-    ep = (Char *) xmalloc((size_t)
-			  (((p - cp) + (q - dp) - 1) * sizeof(Char)));
-    for (p = ep, q = cp; (*p++ = *q++) != '\0';)
-	continue;
-    for (p--, q = dp; (*p++ = *q++) != '\0';)
-	continue;
-    return (ep);
-}
-
-Char   *
-s_strend(cp)
-    Char *cp;
-{
-    if (!cp)
-	return (cp);
-    while (*cp)
-	cp++;
-    return (cp);
-}
-
-Char   *
-s_strstr(s, t)
-    Char *s, *t;
-{
-    do {
-	Char *ss = s;
-	Char *tt = t;
-
-	do
-	    if (*tt == '\0')
-		return (s);
-	while (*ss++ == *tt++);
-    } while (*s++ != '\0');
-    return (NULL);
-}
-#endif				/* SHORT_STRINGS */
-
-char   *
-short2qstr(src)
-    Char *src;
-{
-    static char *sdst = NULL;
-    static size_t dstsize = 0;
-    char *dst, *edst;
-
-    if (src == NULL)
-	return (NULL);
-
-    if (sdst == NULL) {
-	dstsize = MALLOC_INCR;
-	sdst = (char *) xmalloc((size_t) dstsize * sizeof(char));
-    }
-    dst = sdst;
-    edst = &dst[dstsize];
-    while (*src) {
-	if (*src & QUOTE) {
-	    *dst++ = '\\';
-	    if (dst == edst) {
-		dstsize += MALLOC_INCR;
-		sdst = (char *) xrealloc((ptr_t) sdst,
-					 (size_t) dstsize * sizeof(char));
-		edst = &sdst[dstsize];
-		dst = &edst[-MALLOC_INCR];
-	    }
-	}
-	*dst++ = (char) *src++;
-	if (dst == edst) {
-	    dstsize += MALLOC_INCR;
-	    sdst = (char *) xrealloc((ptr_t) sdst,
-				     (size_t) dstsize * sizeof(char));
-	    edst = &sdst[dstsize];
-	    dst = &edst[-MALLOC_INCR];
-	}
-    }
-    *dst = 0;
-    return (sdst);
-}
-
-/*
- * XXX: Should we worry about QUOTE'd chars?
- */
-char *
-vis_str(cp)
-    Char *cp;
-{
-    static char *sdst = NULL;
-    static size_t dstsize = 0;
-    size_t n;
-    Char *dp;
-
-    if (cp == NULL)
-	return (NULL);
-
-    for (dp = cp; *dp++;)
-	continue;
-    n = ((dp - cp) << 2) + 1; /* 4 times + NULL */
-    if (dstsize < n) {
-	sdst = (char *) (dstsize ?
-			    xrealloc(sdst, (size_t) n * sizeof(char)) :
-			    xmalloc((size_t) n * sizeof(char)));
-	dstsize = n;
-    }
-    /*
-     * XXX: When we are in AsciiOnly we want all characters >= 0200 to
-     * be encoded, but currently there is no way in vis to do that.
-     */
-    (void) strvis(sdst, short2str(cp), VIS_NOSLASH);
-    return (sdst);
-}
-
@@ -1,321 +0,0 @@
-/*-
- * Copyright (c) 1980, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)time.c	8.1 (Berkeley) 5/31/93";
-#else
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif
-#endif /* not lint */
-
-#include <sys/types.h>
-#if __STDC__
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#include "csh.h"
-#include "extern.h"
-
-/*
- * C Shell - routines handling process timing and niceing
- */
-static void	pdeltat __P((struct timeval *, struct timeval *));
-
-void
-settimes()
-{
-    struct rusage ruch;
-
-    (void) gettimeofday(&time0, NULL);
-    (void) getrusage(RUSAGE_SELF, &ru0);
-    (void) getrusage(RUSAGE_CHILDREN, &ruch);
-    ruadd(&ru0, &ruch);
-}
-
-/*
- * dotime is only called if it is truly a builtin function and not a
- * prefix to another command
- */
-void
-/*ARGSUSED*/
-dotime(v, t)
-    Char **v;
-    struct command *t;
-{
-    struct timeval timedol;
-    struct rusage ru1, ruch;
-
-    (void) getrusage(RUSAGE_SELF, &ru1);
-    (void) getrusage(RUSAGE_CHILDREN, &ruch);
-    ruadd(&ru1, &ruch);
-    (void) gettimeofday(&timedol, NULL);
-    prusage(&ru0, &ru1, &timedol, &time0);
-}
-
-/*
- * donice is only called when it on the line by itself or with a +- value
- */
-void
-/*ARGSUSED*/
-donice(v, t)
-    Char **v;
-    struct command *t;
-{
-    Char *cp;
-    int     nval = 0;
-
-    v++, cp = *v++;
-    if (cp == 0)
-	nval = 4;
-    else if (*v == 0 && any("+-", cp[0]))
-	nval = getn(cp);
-    (void) setpriority(PRIO_PROCESS, 0, nval);
-}
-
-void
-ruadd(ru, ru2)
-    struct rusage *ru, *ru2;
-{
-    tvadd(&ru->ru_utime, &ru2->ru_utime);
-    tvadd(&ru->ru_stime, &ru2->ru_stime);
-    if (ru2->ru_maxrss > ru->ru_maxrss)
-	ru->ru_maxrss = ru2->ru_maxrss;
-
-    ru->ru_ixrss += ru2->ru_ixrss;
-    ru->ru_idrss += ru2->ru_idrss;
-    ru->ru_isrss += ru2->ru_isrss;
-    ru->ru_minflt += ru2->ru_minflt;
-    ru->ru_majflt += ru2->ru_majflt;
-    ru->ru_nswap += ru2->ru_nswap;
-    ru->ru_inblock += ru2->ru_inblock;
-    ru->ru_oublock += ru2->ru_oublock;
-    ru->ru_msgsnd += ru2->ru_msgsnd;
-    ru->ru_msgrcv += ru2->ru_msgrcv;
-    ru->ru_nsignals += ru2->ru_nsignals;
-    ru->ru_nvcsw += ru2->ru_nvcsw;
-    ru->ru_nivcsw += ru2->ru_nivcsw;
-}
-
-void
-prusage(r0, r1, e, b)
-    struct rusage *r0, *r1;
-    struct timeval *e, *b;
-{
-    time_t t =
-    (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 +
-    (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
-    (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 +
-    (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
-    char *cp;
-    long i;
-    struct varent *vp = adrof(STRtime);
-
-    int     ms =
-    (e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000;
-
-    cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww";
-
-    if (vp && vp->vec[0] && vp->vec[1])
-	cp = short2str(vp->vec[1]);
-
-    for (; *cp; cp++)
-	if (*cp != '%')
-	    (void) fputc(*cp, cshout);
-	else if (cp[1])
-	    switch (*++cp) {
-
-	    case 'U':		/* user CPU time used */
-		pdeltat(&r1->ru_utime, &r0->ru_utime);
-		break;
-
-	    case 'S':		/* system CPU time used */
-		pdeltat(&r1->ru_stime, &r0->ru_stime);
-		break;
-
-	    case 'E':		/* elapsed (wall-clock) time */
-		pcsecs((long) ms);
-		break;
-
-	    case 'P':		/* percent time spent running */
-		/* check if it did not run at all */
-		i = (ms == 0) ? 0 : (t * 1000 / ms);
-		/* nn.n% */
-		(void) fprintf(cshout, "%ld.%01ld%%", i / 10, i % 10);
-		break;
-
-	    case 'W':		/* number of swaps */
-		i = r1->ru_nswap - r0->ru_nswap;
-		(void) fprintf(cshout, "%ld", i);
-		break;
-
-	    case 'X':		/* (average) shared text size */
-		(void) fprintf(cshout, "%ld", t == 0 ? 0L :
-			       (r1->ru_ixrss - r0->ru_ixrss) / t);
-		break;
-
-	    case 'D':		/* (average) unshared data size */
-		(void) fprintf(cshout, "%ld", t == 0 ? 0L :
-			(r1->ru_idrss + r1->ru_isrss -
-			 (r0->ru_idrss + r0->ru_isrss)) / t);
-		break;
-
-	    case 'K':		/* (average) total data memory used  */
-		(void) fprintf(cshout, "%ld", t == 0 ? 0L :
-			((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) -
-			 (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t);
-		break;
-
-	    case 'M':		/* max. Resident Set Size */
-		(void) fprintf(cshout, "%ld", r1->ru_maxrss / 2L);
-		break;
-
-	    case 'F':		/* page faults */
-		(void) fprintf(cshout, "%ld", r1->ru_majflt - r0->ru_majflt);
-		break;
-
-	    case 'R':		/* page reclaims */
-		(void) fprintf(cshout, "%ld", r1->ru_minflt - r0->ru_minflt);
-		break;
-
-	    case 'I':		/* FS blocks in */
-		(void) fprintf(cshout, "%ld", r1->ru_inblock - r0->ru_inblock);
-		break;
-
-	    case 'O':		/* FS blocks out */
-		(void) fprintf(cshout, "%ld", r1->ru_oublock - r0->ru_oublock);
-		break;
-
-	    case 'r':		/* socket messages received */
-		(void) fprintf(cshout, "%ld", r1->ru_msgrcv - r0->ru_msgrcv);
-		break;
-
-	    case 's':		/* socket messages sent */
-		(void) fprintf(cshout, "%ld", r1->ru_msgsnd - r0->ru_msgsnd);
-		break;
-
-	    case 'k':		/* number of signals received */
-		(void) fprintf(cshout, "%ld", r1->ru_nsignals-r0->ru_nsignals);
-		break;
-
-	    case 'w':		/* num. voluntary context switches (waits) */
-		(void) fprintf(cshout, "%ld", r1->ru_nvcsw - r0->ru_nvcsw);
-		break;
-
-	    case 'c':		/* num. involuntary context switches */
-		(void) fprintf(cshout, "%ld", r1->ru_nivcsw - r0->ru_nivcsw);
-		break;
-	    }
-    (void) fputc('\n', cshout);
-}
-
-static void
-pdeltat(t1, t0)
-    struct timeval *t1, *t0;
-{
-    struct timeval td;
-
-    tvsub(&td, t1, t0);
-    (void) fprintf(cshout, "%ld.%01ld", td.tv_sec, td.tv_usec / 100000L);
-}
-
-void
-tvadd(tsum, t0)
-    struct timeval *tsum, *t0;
-{
-
-    tsum->tv_sec += t0->tv_sec;
-    tsum->tv_usec += t0->tv_usec;
-    if (tsum->tv_usec >= 1000000)
-	tsum->tv_sec++, tsum->tv_usec -= 1000000;
-}
-
-void
-tvsub(tdiff, t1, t0)
-    struct timeval *tdiff, *t1, *t0;
-{
-
-    tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
-    tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
-    if (tdiff->tv_usec < 0)
-	tdiff->tv_sec--, tdiff->tv_usec += 1000000;
-}
-
-#define  P2DIG(i) (void) fprintf(cshout, "%d%d", (i) / 10, (i) % 10)
-
-void
-psecs(l)
-    long    l;
-{
-    int i;
-
-    i = l / 3600;
-    if (i) {
-	(void) fprintf(cshout, "%d:", i);
-	i = l % 3600;
-	P2DIG(i / 60);
-	goto minsec;
-    }
-    i = l;
-    (void) fprintf(cshout, "%d", i / 60);
-minsec:
-    i %= 60;
-    (void) fputc(':', cshout);
-    P2DIG(i);
-}
-
-void
-pcsecs(l)			/* PWP: print mm:ss.dd, l is in sec*100 */
-    long    l;
-{
-    int i;
-
-    i = l / 360000;
-    if (i) {
-	(void) fprintf(cshout, "%d:", i);
-	i = (l % 360000) / 100;
-	P2DIG(i / 60);
-	goto minsec;
-    }
-    i = l / 100;
-    (void) fprintf(cshout, "%d", i / 60);
-minsec:
-    i %= 60;
-    (void) fputc(':', cshout);
-    P2DIG(i);
-    (void) fputc('.', cshout);
-    P2DIG((int) (l % 100));
-}
@@ -61,23 +61,26 @@
 .Oc
 .Op Cm + Ns Ar format
 .Sh DESCRIPTION
-.Nm Date
-displays the current date and time when invoked without arguments.
-Providing arguments will format the date and time in a user-defined
-way or set the date.
+When invoked without arguments, the
+.Nm
+utility displays the current date and time.
+Otherwise, depending on the options specified,
+.Nm
+will set the date and time or print it in a user-defined way.
+.Pp
 Only the superuser may set the date.
 .Pp
 The options are as follows:
 .Bl -tag -width Ds
-.It Fl d
-Set the kernel's value for daylight savings time.
+.It Fl d Ar dst
+Set the kernel's value for daylight saving time.
 If
 .Ar dst
 is non-zero, future calls
 to
 .Xr gettimeofday 2
-will return a non-zero
-.Ql tz_dsttime  .
+will return a non-zero for
+.Fa tz_dsttime  .
 .It Fl f
 Use
 .Ar fmt
@@ -89,61 +92,63 @@ the default
 .Oc "\&yy" Oc "\&mm" Oc "\&dd" Oc "\&HH" Ns
 .Oc
 .No "\&MM" Ns Op "\&.ss" Xc
-format.  Parsing is done using
+format.
+Parsing is done using
 .Xr strptime 3 .
 .It Fl j
-Do not try to set the date.  This allows you to use the
+Do not try to set the date.
+This allows you to use the
 .Fl f
 flag in addition to the
 .Cm +
 option to convert one date format to another.
 .It Fl n
-The utility
+By default, if the
 .Xr timed 8
-is used to synchronize the clocks on groups of machines.
-By default, if
-.Xr timed
-is running,
+daemon is running,
 .Nm
-will set the time on all of the machines in the local group.
+sets the time on all of the machines in the local group.
 The
 .Fl n
-option stops
-.Nm
-from setting the time for other than the current machine.
-.It Fl r
-Print out the date and time that is
+option suppresses this behavior and causes the time to be set only on the
+current machine.
+.It Fl r Ar seconds
+Print the date and time represented by
+.Ar seconds ,
+where
 .Ar seconds
-from the Epoch
-.Po
-00:00:00 UTC, January 1, 1970;
+is the number of seconds since the Epoch
+(00:00:00 UTC, January 1, 1970;
 see
-.Xr time 3
-.Pc .
-.It Fl t
-Set the kernel's value for minutes west of
+.Xr time 3 ) ,
+and can be specified in decimal, octal, or hex.
+.It Fl t Ar minutes_west
+Set the system's value for minutes west of
 .Tn GMT .
-.Ar Minutes_west
+.Ar minutes_west
 specifies the number of minutes returned in
-.Ql tz_minuteswest  
+.Fa tz_minuteswest  
 by future calls to
 .Xr gettimeofday 2 .
 .It Fl u
 Display or set the date in
-.Tn UCT
-.Pq universal
-time.
+.Tn UTC
+(Coordinated Universal) time.
 .It Fl v
-Adjust the second, minute, hour, month day, week day, month or year according to
+Adjust the second, minute, hour, month day, week day,
+month or year according to
 .Ar val .  
 If
 .Ar val
-is preceded with a plus or minus sign, the date is adjusted forwards
-or backwards according to the remaining string, otherwise the relevant
-part of the date is set.  The date can be adjusted as many times as
-required using these flags.  Flags are processed in the order given.
+is preceded with a plus or minus sign,
+the date is adjusted forwards or backwards according to the remaining string,
+otherwise the relevant part of the date is set.
+The date can be adjusted as many times as required using these flags.
+Flags are processed in the order given.
 .Pp
-Seconds are in the range 0-59, minutes are in the range 0-59, hours are
+When setting values
+.Pq rather than adjusting them ,
+seconds are in the range 0-59, minutes are in the range 0-59, hours are
 in the range 1-12, month days are in the range 1-31, week days are in the
 range 0-6
 .Pq Sun-Sat ,
@@ -165,26 +170,54 @@ or
 must be used to specify which part of the date is to be adjusted.
 .Pp
 The week day or month may be specified using a name rather than a
-number.  If a name is used with the plus
+number.
+If a name is used with the plus
 .Pq or minus
 sign, the date will be put forwards
 .Pq or backwards
 to the next
 .Pq previous
-date that matches the given week day or month.  This will not adjust the date
+date that matches the given week day or month.
+This will not adjust the date,
 if the given week day or month is the same as the current one.
 .Pp
+When a date is adjusted to a specific value or in units greater than hours,
+daylight savings time considerations are ignored.
+Adjustments in units of hours or less honor daylight saving time.
+So, assuming the current date is March 26, 0:30 and that the DST adjustment
+means that the clock goes forward at 01:00 to 02:00, using
+.Fl v No +1H
+will adjust the date to March 26, 2:30.
+Likewise, if the date is October 29, 0:30 and the DST adjustment means that
+the clock goes back at 02:00 to 01:00, using
+.Fl v No +3H
+will be necessary to reach October 29, 2:30.
+.Pp
+When the date is adjusted to a specific value that doesn't actually exist
+.Po
+for example March 26, 1:30 BST 2000 in the Europe/London timezone
+.Pc ,
+the date will be silently adjusted forwards in units of one hour until it
+reaches a valid time.
+When the date is adjusted to a specific value that occurs twice
+.Pq for example October 29, 1:30 2000 ,
+the resulting timezone will be set so that the date matches the earlier of
+the two times.
+.Pp
 Refer to the examples below for further details.
 .El
 .Pp
 An operand with a leading plus
-.Pq Dq \&+
-sign signals a user-defined format string which specifies the format in
-which to display the date and time.  The format string may contain any of
-the conversion specifications described in the 
+.Pq Sq +
+sign signals a user-defined format string
+which specifies the format in which to display the date and time.
+The format string may contain any of the conversion specifications
+described in the 
 .Xr strftime 3
 manual page, as well as any arbitrary text.
-A <newline> character is always output after the characters specified by
+A newline
+.Pq Ql \en
+character is always output after the characters specified by
 the format string.
 The format string for the default display is
 .Dq +%+ .
@@ -202,23 +235,22 @@ prepended to the abbreviated year.
 Year in abbreviated form
 .Pq e.g. 89 for 1989, 06 for 2006 .
 .It Ar mm
-Numeric month.
-A number from 1 to 12.
+Numeric month, a number from 1 to 12.
 .It Ar dd
 Day, a number from 1 to 31.
 .It Ar HH
 Hour, a number from 0 to 23.
 .It Ar MM
 Minutes, a number from 0 to 59.
-.It Ar .ss
+.It Ar ss
 Seconds, a number from 0 to 61
 .Pq 59 plus a maximum of two leap seconds .
 .El
 .Pp
 Everything but the minutes is optional.
 .Pp
-Time changes for Daylight Saving and Standard time and leap seconds
-and years are handled automatically.
+Time changes for Daylight Saving Time, standard time, leap seconds,
+and leap years are handled automatically.
 .Sh EXAMPLES
 The command:
 .Bd -literal -offset indent
@@ -231,14 +263,14 @@ DATE: 1987-11-21
 TIME: 13:36:16
 .Ed
 .Pp
-The command:
+In the Europe/London timezone, the command:
 .Bd -literal -offset indent
 date -v1m -v+1y
 .Ed
 .Pp
 will display:
 .Bd -literal -offset indent
-Sun Jan  4 03:15:24 GMT 1998
+Sun Jan  4 04:15:24 GMT 1998
 .Ed
 .Pp
 where it is currently Mon Aug  4 04:15:24 BST 1997.
@@ -282,9 +314,8 @@ sets the time to
 .Li "2:32 PM" ,
 without modifying the date.
 .Sh ENVIRONMENT
-The execution of
-.Nm
-is affected by the following environment variables:
+The following environment variables affect the execution of
+.Nm Ns :
 .Bl -tag -width Ds
 .It Ev TZ
 The timezone to use when displaying dates.
@@ -300,9 +331,9 @@ for more information.
 .Sh FILES
 .Bl -tag -width /var/log/messages -compact
 .It Pa /var/log/wtmp
-a record of date resets and time changes
+record of date resets and time changes
 .It Pa /var/log/messages
-a record of the user setting the time
+record of the user setting the time
 .El
 .Sh SEE ALSO
 .Xr gettimeofday 2 ,
@@ -322,7 +353,7 @@ utility exits 0 on success, 1 if unable to set the date, and 2
 if able to set the local date, but unable to set it globally.
 .Pp
 Occasionally, when
-.Xr timed
+.Xr timed 8
 synchronizes the time on many hosts, the setting of a new time value may
 require more than a few seconds.
 On these occasions,
@@ -335,12 +366,12 @@ occurs when the communication
 between
 .Nm
 and
-.Xr timed
+.Xr timed 8
 fails.
 .Sh STANDARDS
 The
 .Nm
-command is expected to be compatible with
+utility is expected to be compatible with
 .St -p1003.2 .
 .Sh HISTORY
 A
@@ -78,8 +78,6 @@ main(argc, argv)
 	int argc;
 	char **argv;
 {
-	extern int optind;
-	extern char *optarg;
 	struct timezone tz;
 	int ch, rflag;
 	int jflag, nflag;
@@ -116,17 +114,18 @@ main(argc, argv)
 			break;
 		case 'r':		/* user specified seconds */
 			rflag = 1;
-			tval = atol(optarg);
+			if (sscanf(optarg,"%li",&tval) != 1)
+				usage();
 			break;
-		case 't':		/* minutes west of GMT */
+		case 't':		/* minutes west of UTC */
 					/* error check; don't allow "PST" */
 			tz.tz_minuteswest = strtol(optarg, &endptr, 10);
 			if (endptr == optarg || *endptr != '\0')
 				usage();
 			set_timezone = 1;
 			break;
-		case 'u':		/* do everything in GMT */
-			(void)setenv("TZ", "GMT0", 1);
+		case 'u':		/* do everything in UTC */
+			(void)setenv("TZ", "UTC0", 1);
 			break;
 		case 'v':
 			v = vary_append(v, optarg);
@@ -53,6 +53,19 @@ static struct trans trans_wday[] = {
 };

 static char digits[] = "0123456789";
+static int adjhour(struct tm *, char, int, int);
+
+static int
+domktime(struct tm *t, char type)
+{
+  time_t ret;
+
+  while ((ret = mktime(t)) == -1 && t->tm_year > 68 && t->tm_year < 138)
+    /* While mktime() fails, adjust by an hour */
+    adjhour(t, type == '-' ? type : '+', 1, 0);
+
+  return ret;
+}

 static int
 trans(const struct trans t[], const char *arg)
@@ -112,7 +125,7 @@ daysinmonth(const struct tm *t)


 static int
-adjyear(struct tm *t, char type, int val)
+adjyear(struct tm *t, char type, int val, int mk)
 {
  switch (type) {
    case '+':
@@ -129,11 +142,11 @@ adjyear(struct tm *t, char type, int val)
        t->tm_year -= 1900;             /* struct tm holds years since 1900 */
      break;
  }
-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 static int
-adjmon(struct tm *t, char type, int val, int istext)
+adjmon(struct tm *t, char type, int val, int istext, int mk)
 {
  if (val < 0)
    return 0;
@@ -146,12 +159,14 @@ adjmon(struct tm *t, char type, int val, int istext)
        else
          val -= t->tm_mon + 1;		/* later this year */
      }
-      if (!adjyear(t, '+', (t->tm_mon + val) / 12))
-        return 0;
-      val %= 12;
-      t->tm_mon += val;
-      if (t->tm_mon > 11)
-        t->tm_mon -= 12;
+      if (val) {
+        if (!adjyear(t, '+', (t->tm_mon + val) / 12, 0))
+          return 0;
+        val %= 12;
+        t->tm_mon += val;
+        if (t->tm_mon > 11)
+          t->tm_mon -= 12;
+      }
      break;

    case '-':
@@ -161,15 +176,17 @@ adjmon(struct tm *t, char type, int val, int istext)
        else
          val = t->tm_mon - val + 1;	/* early this year */
      }
-      if (!adjyear(t, '-', val / 12))
-        return 0;
-      val %= 12;
-      if (val > t->tm_mon) {
-        if (!adjyear(t, '-', 1))
+      if (val) {
+        if (!adjyear(t, '-', val / 12, 0))
          return 0;
-        val -= 12;
+        val %= 12;
+        if (val > t->tm_mon) {
+          if (!adjyear(t, '-', 1, 0))
+            return 0;
+          val -= 12;
+        }
+        t->tm_mon -= val;
      }
-      t->tm_mon -= val;
      break;

    default:
@@ -178,13 +195,14 @@ adjmon(struct tm *t, char type, int val, int istext)
      t->tm_mon = --val;
  }

-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 static int
-adjday(struct tm *t, char type, int val)
+adjday(struct tm *t, char type, int val, int mk)
 {
  int mdays;
+
  switch (type) {
    case '+':
      while (val) {
@@ -192,7 +210,7 @@ adjday(struct tm *t, char type, int val)
        if (val > mdays - t->tm_mday) {
          val -= mdays - t->tm_mday + 1;
          t->tm_mday = 1;
-          if (!adjmon(t, '+', 1, 0))
+          if (!adjmon(t, '+', 1, 0, 0))
            return 0;
        } else {
          t->tm_mday += val;
@@ -205,7 +223,7 @@ adjday(struct tm *t, char type, int val)
        if (val >= t->tm_mday) {
          val -= t->tm_mday;
          t->tm_mday = 1;
-          if (!adjmon(t, '-', 1, 0))
+          if (!adjmon(t, '-', 1, 0, 0))
            return 0;
          t->tm_mday = daysinmonth(t);
        } else {
@@ -221,11 +239,11 @@ adjday(struct tm *t, char type, int val)
      break;
  }

-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 static int
-adjwday(struct tm *t, char type, int val, int istext)
+adjwday(struct tm *t, char type, int val, int istext, int mk)
 {
  if (val < 0)
    return 0;
@@ -238,54 +256,62 @@ adjwday(struct tm *t, char type, int val, int istext)
        else
          val -= t->tm_wday;           /* later this week */
      else
-        val *= 7;                      /* "-W +5" == "5 weeks in the future" */
-      return adjday(t, '+', val);
+        val *= 7;                      /* "-v+5w" == "5 weeks in the future" */
+      return !val || adjday(t, '+', val, mk);
    case '-':
-      if (istext)
+      if (istext) {
        if (val > t->tm_wday)
          val = 7 - val + t->tm_wday;  /* later last week */
        else
          val = t->tm_wday - val;      /* early this week */
-      else
-        val *= 7;                      /* "-W -5" == "5 weeks ago" */
-      return adjday(t, '-', val);
+      } else
+        val *= 7;                      /* "-v-5w" == "5 weeks ago" */
+      return !val || adjday(t, '-', val, mk);
    default:
      if (val < t->tm_wday)
-        return adjday(t, '-', t->tm_wday - val);
+        return adjday(t, '-', t->tm_wday - val, mk);
      else if (val > 6)
        return 0;
      else if (val > t->tm_wday)
-        return adjday(t, '+', val - t->tm_wday);
+        return adjday(t, '+', val - t->tm_wday, mk);
  }
  return 1;
 }

 static int
-adjhour(struct tm *t, char type, int val)
+adjhour(struct tm *t, char type, int val, int mk)
 {
  if (val < 0)
    return 0;

  switch (type) {
    case '+':
-      if (!adjday(t, '+', (t->tm_hour + val) / 24))
-        return 0;
-      val %= 24;
-      t->tm_hour += val;
-      if (t->tm_hour > 23)
-        t->tm_hour -= 24;
+      if (val) {
+        int days;
+
+        days = (t->tm_hour + val) / 24;
+        val %= 24;
+        t->tm_hour += val;
+        t->tm_hour %= 24;
+        if (!adjday(t, '+', days, 0))
+          return 0;
+      }
      break;

    case '-':
-      if (!adjday(t, '-', val / 24))
-        return 0;
-      val %= 24;
-      if (val > t->tm_hour) {
-        if (!adjday(t, '-', 1))
+      if (val) {
+        int days;
+
+        days = val / 24;
+        val %= 24;
+        if (val > t->tm_hour) {
+          days++;
+          val -= 24;
+        }
+        t->tm_hour -= val;
+        if (!adjday(t, '-', days, 0))
          return 0;
-        val -= 24;
      }
-      t->tm_hour -= val;
      break;

    default:
@@ -294,35 +320,39 @@ adjhour(struct tm *t, char type, int val)
      t->tm_hour = val;
  }

-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 static int
-adjmin(struct tm *t, char type, int val)
+adjmin(struct tm *t, char type, int val, int mk)
 {
  if (val < 0)
    return 0;

  switch (type) {
    case '+':
-      if (!adjhour(t, '+', (t->tm_min + val) / 60))
-        return 0;
-      val %= 60;
-      t->tm_min += val;
-      if (t->tm_min > 59)
-        t->tm_min -= 60;
+      if (val) {
+        if (!adjhour(t, '+', (t->tm_min + val) / 60, 0))
+          return 0;
+        val %= 60;
+        t->tm_min += val;
+        if (t->tm_min > 59)
+          t->tm_min -= 60;
+      }
      break;

    case '-':
-      if (!adjhour(t, '-', val / 60))
-        return 0;
-      val %= 60;
-      if (val > t->tm_min) {
-        if (!adjhour(t, '-', 1))
+      if (val) {
+        if (!adjhour(t, '-', val / 60, 0))
          return 0;
-        val -= 60;
+        val %= 60;
+        if (val > t->tm_min) {
+          if (!adjhour(t, '-', 1, 0))
+            return 0;
+          val -= 60;
+        }
+        t->tm_min -= val;
      }
-      t->tm_min -= val;
      break;

    default:
@@ -331,35 +361,39 @@ adjmin(struct tm *t, char type, int val)
      t->tm_min = val;
  }

-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 static int
-adjsec(struct tm *t, char type, int val)
+adjsec(struct tm *t, char type, int val, int mk)
 {
  if (val < 0)
    return 0;

  switch (type) {
    case '+':
-      if (!adjmin(t, '+', (t->tm_sec + val) / 60))
-        return 0;
-      val %= 60;
-      t->tm_sec += val;
-      if (t->tm_sec > 59)
-        t->tm_sec -= 60;
+      if (val) {
+        if (!adjmin(t, '+', (t->tm_sec + val) / 60, 0))
+          return 0;
+        val %= 60;
+        t->tm_sec += val;
+        if (t->tm_sec > 59)
+          t->tm_sec -= 60;
+      }
      break;

    case '-':
-      if (!adjmin(t, '-', val / 60))
-        return 0;
-      val %= 60;
-      if (val > t->tm_sec) {
-        if (!adjmin(t, '-', 1))
+      if (val) {
+        if (!adjmin(t, '-', val / 60, 0))
          return 0;
-        val -= 60;
+        val %= 60;
+        if (val > t->tm_sec) {
+          if (!adjmin(t, '-', 1, 0))
+            return 0;
+          val -= 60;
+        }
+        t->tm_sec -= val;
      }
-      t->tm_sec -= val;
      break;

    default:
@@ -368,7 +402,7 @@ adjsec(struct tm *t, char type, int val)
      t->tm_sec = val;
  }

-  return mktime(t) != -1;
+  return !mk || domktime(t, type) != -1;
 }

 const struct vary *
@@ -391,15 +425,18 @@ vary_apply(const struct vary *v, struct tm *t)
    if (len < 2)
      return v;

+    if (type == '\0')
+      t->tm_isdst = -1;
+
    if (strspn(arg, digits) != len-1) {
      val = trans(trans_wday, arg);
      if (val != -1) {
-          if (!adjwday(t, type, val, 1))
+          if (!adjwday(t, type, val, 1, 1))
            return v;
      } else {
        val = trans(trans_mon, arg);
        if (val != -1) {
-          if (!adjmon(t, type, val, 1))
+          if (!adjmon(t, type, val, 1, 1))
            return v;
        } else
          return v;
@@ -410,31 +447,35 @@ vary_apply(const struct vary *v, struct tm *t)
      
      switch (which) {
        case 'S':
-          if (!adjsec(t, type, val))
+          if (!adjsec(t, type, val, 1))
            return v;
          break;
        case 'M':
-          if (!adjmin(t, type, val))
+          if (!adjmin(t, type, val, 1))
            return v;
          break;
        case 'H':
-          if (!adjhour(t, type, val))
+          if (!adjhour(t, type, val, 1))
            return v;
          break;
        case 'd':
-          if (!adjday(t, type, val))
+          t->tm_isdst = -1;
+          if (!adjday(t, type, val, 1))
            return v;
          break;
        case 'w':
-          if (!adjwday(t, type, val, 0))
+          t->tm_isdst = -1;
+          if (!adjwday(t, type, val, 0, 1))
            return v;
          break;
        case 'm':
-          if (!adjmon(t, type, val, 0))
+          t->tm_isdst = -1;
+          if (!adjmon(t, type, val, 0, 1))
            return v;
          break;
        case 'y':
-          if (!adjyear(t, type, val))
+          t->tm_isdst = -1;
+          if (!adjyear(t, type, val, 1))
            return v;
          break;
        default:
@@ -132,11 +132,12 @@ jcl(argv)
 		 * just wanted to set both the input and output block sizes
 		 * and didn't want the bs semantics, so we don't warn.
 		 */
-		if (ddflags & (C_BLOCK|C_LCASE|C_SWAB|C_UCASE|C_UNBLOCK))
+		if (ddflags & (C_BLOCK | C_LCASE | C_SWAB | C_UCASE |
+		    C_UNBLOCK))
 			ddflags &= ~C_BS;

 		/* Bs supersedes ibs and obs. */
-		if (ddflags & C_BS && ddflags & (C_IBS|C_OBS))
+		if (ddflags & C_BS && ddflags & (C_IBS | C_OBS))
 			warnx("bs supersedes ibs and obs");
 	}

@@ -52,6 +52,7 @@ static const char rcsid[] =
 #include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/conf.h>
+#include <sys/disklabel.h>
 #include <sys/filio.h>

 #include <ctype.h>
@@ -69,6 +70,7 @@ static const char rcsid[] =

 static void dd_close __P((void));
 static void dd_in __P((void));
+int main __P((int, char *[]));
 static void getfdtype __P((IO *));
 static void setup __P((void));

@@ -167,11 +169,13 @@ setup()
 		pos_out();

 	/*
-	 * Truncate the output file; ignore errors because it fails on some
-	 * kinds of output files, tapes, for example.
+	 * Truncate the output file.  If it fails on a type of output file
+	 * that it should _not_ fail on, error out.
 	 */
-	if ((ddflags & (C_OF | C_SEEK | C_NOTRUNC)) == (C_OF | C_SEEK))
-		(void)ftruncate(out.fd, out.offset * out.dbsz);
+	if ((ddflags & (C_OF | C_SEEK | C_NOTRUNC)) == (C_OF | C_SEEK) &&
+	    out.flags & ISTRUNC)
+		if (ftruncate(out.fd, out.offset * out.dbsz) == -1)
+			err(1, "truncating %s", out.name);

 	/*
 	 * If converting case at the same time as another conversion, build a
@@ -190,10 +194,10 @@ setup()
 		} else {
 			if (ddflags & C_LCASE) {
 				for (cnt = 0; cnt <= 0377; ++cnt)
-					casetab[cnt] = tolower(cnt);
+					casetab[cnt] = tolower((int)cnt);
 			} else {
 				for (cnt = 0; cnt <= 0377; ++cnt)
-					casetab[cnt] = toupper(cnt);
+					casetab[cnt] = toupper((int)cnt);
 			}
 		}
 		ctab = casetab;
@@ -212,14 +216,22 @@ getfdtype(io)

 	if (fstat(io->fd, &sb) == -1)
 		err(1, "%s", io->name);
+	if (S_ISREG(sb.st_mode))
+		io->flags |= ISTRUNC;
 	if (S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) { 
 		if (ioctl(io->fd, FIODTYPE, &type) == -1) {
 			err(1, "%s", io->name);
 		} else {
 			if (type & D_TAPE)
 				io->flags |= ISTAPE;
-			else if (type & (D_DISK | D_MEM))
+			else if (type & (D_DISK | D_MEM)) {
+				if (type & D_DISK) {
+					const int one = 1;
+
+					(void)ioctl(io->fd, DIOCWLABEL, &one);
+				}
 				io->flags |= ISSEEK;
+			}
 			if (S_ISCHR(sb.st_mode) && (type & D_TAPE) == 0)
 				io->flags |= ISCHR;
 		}
@@ -244,7 +256,7 @@ dd_in()
 		case 0:
 			break;
 		default:
-			if (st.in_full + st.in_part >= cpy_cnt)
+			if (st.in_full + st.in_part >= (u_quad_t)cpy_cnt)
 				return;
 			break;
 		}
@@ -296,7 +308,7 @@ dd_in()
 			++st.in_full;

 		/* Handle full input blocks. */
-		} else if (n == in.dbsz) {
+		} else if ((size_t)n == in.dbsz) {
 			in.dbcnt += in.dbrcnt = n;
 			++st.in_full;

@@ -327,7 +339,7 @@ dd_in()
 				++st.swab;
 				--n;
 			}
-			swab(in.dbp, in.dbp, n);
+			swab(in.dbp, in.dbp, (size_t)n);
 		}

 		in.dbp += in.dbrcnt;
@@ -427,7 +439,7 @@ dd_out(force)
 			}
 			outp += nw;
 			st.bytes += nw;
-			if (nw == n) {
+			if ((size_t)nw == n) {
 				if (n != out.dbsz)
 					++st.out_part;
 				else
@@ -435,7 +447,7 @@ dd_out(force)
 				break;
 			}
 			++st.out_part;
-			if (nw == cnt)
+			if ((size_t)nw == cnt)
 				break;
 			if (out.flags & ISTAPE)
 				errx(1, "%s: short write on tape device",
@@ -48,13 +48,14 @@ typedef struct {
 	size_t		dbsz;		/* buffer size */

 #define	ISCHR		0x01		/* character device (warn on short) */
-#define	ISPIPE		0x02		/* pipe-like (not truncatable) */
+#define	ISPIPE		0x02		/* pipe-like (see position.c) */
 #define	ISTAPE		0x04		/* tape */
 #define	ISSEEK		0x08		/* valid to seek on */
 #define	NOREAD		0x10		/* not readable */
+#define	ISTRUNC		0x20		/* valid to ftruncate() */
 	u_int		flags;

-	char 		*name;		/* name */
+	const char 	*name;		/* name */
 	int		fd;		/* file descriptor */
 	off_t		offset;		/* # of blocks to skip */

@@ -53,10 +53,11 @@ void summaryx __P((int));
 void terminate __P((int));
 void unblock __P((void));
 void unblock_close __P((void));
+void bitswab __P((void *, size_t));

 extern IO in, out;
 extern STAT st;
-extern void (*cfunc)();
+extern void (*cfunc) __P((void));
 extern quad_t cpy_cnt;
 extern size_t cbsz;
 extern u_int ddflags;
@@ -130,7 +130,7 @@ pos_out()
 	 * going to fail, but don't protect the user -- they shouldn't
 	 * have specified the seek operand.
 	 */
-	if (!(out.flags & ISTAPE)) {
+	if (out.flags & (ISSEEK | ISPIPE)) {
 		errno = 0;
 		if (lseek(out.fd, out.offset * out.dbsz, SEEK_CUR) == -1 &&
 		    errno != 0)
@@ -166,9 +166,13 @@ pos_out()
 		if (ioctl(out.fd, MTIOCTOP, &t_op) == -1)
 			err(1, "%s", out.name);

-		while (cnt++ < out.offset)
-			if ((n = write(out.fd, out.db, out.dbsz)) != out.dbsz)
+		while (cnt++ < out.offset) {
+			n = write(out.fd, out.db, out.dbsz);
+			if (n == -1)
 				err(1, "%s", out.name);
+			if ((size_t)n != out.dbsz)
+				errx(1, "%s: write failure", out.name);
+		}
 		break;
 	}
 }
@@ -1,5 +1,5 @@
-# $FreeBSD$
 #	@(#)Makefile	8.3 (Berkeley) 5/8/95
+# $FreeBSD$

 PROG=	df
 SRCS=	df.c vfslist.c
@@ -8,8 +8,9 @@ BINMODE=2555

 MOUNT=	${.CURDIR}/../../sbin/mount
 CFLAGS+= -I${MOUNT}
-LDADD+= ${LIBM}
-DPADD+= ${LIBM}
 .PATH:	${MOUNT}

+DPADD=	${LIBM}
+LDADD=	-lm
+
 .include <bsd.prog.mk>
@@ -40,7 +40,10 @@
 .Nd display free disk space
 .Sh SYNOPSIS
 .Nm df
-.Op Fl b | h | H | k | m | P
+.Oo
+.Fl b | h | H | k |
+.Fl m | P
+.Oc
 .Op Fl ain
 .Op Fl t Ar type
 .Op Ar file | Ar filesystem ...
@@ -68,6 +71,11 @@ Use 512-byte blocks rather than the default.  Note that
 this overrides the
 .Ev BLOCKSIZE
 specification from the environment.
+.It Fl g
+Use 1073741824-byte (1-Gbyte) blocks rather than the default.  Note that
+this overrides the
+.Ev BLOCKSIZE
+specification from the environment.
 .It Fl H
 "Human-readable" output.  Use unit suffixes: Byte, Kilobyte, Megabyte,
 Gigabyte, Terabyte and Petabyte in order to reduce the number of
@@ -122,7 +122,7 @@ main(argc, argv)
 	char *mntpt, *mntpath, **vfslist;

 	vfslist = NULL;
-	while ((ch = getopt(argc, argv, "abHhikmnPt:")) != -1)
+	while ((ch = getopt(argc, argv, "abgHhikmnPt:")) != -1)
 		switch (ch) {
 		case 'a':
 			aflag = 1;
@@ -133,6 +133,10 @@ main(argc, argv)
 			putenv("BLOCKSIZE=512");
 			hflag = 0;
 			break;
+		case 'g':
+			putenv("BLOCKSIZE=1g");
+			hflag = 0;
+			break;
 		case 'H':
 			hflag = UNITS_SI;
 			valp = vals_si;
@@ -6,13 +6,11 @@ extensions and possible deviations from POSIX 1003.2.

 OMISSIONS
 ---------
-1) Locale(3) is not supported yet.
-
-2) For backwards compatibility, the POSIX rule that says a range of
+1) For backwards compatibility, the POSIX rule that says a range of
   addresses cannot be used where only a single address is expected has
   been relaxed.

-3) To support the BSD `s' command (see extension [1] below),
+2) To support the BSD `s' command (see extension [1] below),
   substitution patterns cannot be delimited by numbers or the characters
   `r', `g' and `p'.  In contrast, POSIX specifies any character expect
   space or newline can used as a delimiter.
@@ -835,7 +835,8 @@ attempts to write the  buffer if the terminal hangs up
 USD:12-13

 .Rs
-.%A B. W. Kernighan and P. J. Plauger
+.%A B. W. Kernighan
+.%A P. J. Plauger
 .%B Software Tools in Pascal
 .%O Addison-Wesley
 .%D 1981
@@ -175,7 +175,9 @@ top:
 			if (read_file(*argv, 0) < 0 && !isatty(0))
 				quit(2);
 			else if (**argv != '!')
-				strcpy(old_filename, *argv);
+				if (strlcpy(old_filename, *argv, sizeof(old_filename))
+				    >= sizeof(old_filename))
+					quit(2);
 		} else if (argc) {
 			fputs("?\n", stderr);
 			if (**argv == '\0')
@@ -1345,8 +1347,8 @@ strip_escapes(s)
 	int i = 0;

 	REALLOC(file, filesz, MAXPATHLEN + 1, NULL);
-	/* assert: no trailing escape */
-	while ((file[i++] = (*s == '\\') ? *++s : *s))
+	while (i < filesz - 1	/* Worry about a possible trailing escape */
+	       && (file[i++] = (*s == '\\') ? *++s : *s))
 		s++;
 	return file;
 }
@@ -7,12 +7,16 @@
 * $FreeBSD$
 */

+#include <sys/types.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <locale.h>
 #include <ctype.h>
 #include <err.h>
+#include <errno.h>
+#include <regex.h>
+#include <limits.h>
  
 enum valtype {
 	integer, numeric_string, string
@@ -22,7 +26,7 @@ struct val {
 	enum valtype type;
 	union {
 		char *s;
-		int   i;
+		quad_t i;
 	} u;
 } ;

@@ -87,7 +91,7 @@ expr:	TOKEN

 struct val *
 make_integer (i)
-int i;
+quad_t i;
 {
 	struct val *vp;

@@ -139,11 +143,11 @@ struct val *vp;
 }


-int
+quad_t
 to_integer (vp)
 struct val *vp;
 {
-	int i;
+	quad_t i;

 	if (vp->type == integer)
 		return 1;
@@ -152,7 +156,11 @@ struct val *vp;
 		return 0;

 	/* vp->type == numeric_string, make it numeric */
-	i  = atoi(vp->u.s);
+	errno = 0;
+	i  = strtoq(vp->u.s, (char**)NULL, 10);
+	if (errno != 0) {
+		errx (2, "overflow");
+	}
 	free (vp->u.s);
 	vp->u.i = i;
 	vp->type = integer;
@@ -173,7 +181,7 @@ struct val *vp;
 		errx (2, "malloc() failed");
 	}

-	sprintf (tmp, "%d", vp->u.i);
+	sprintf (tmp, "%qd", vp->u.i);
 	vp->type = string;
 	vp->u.s  = tmp;
 }
@@ -239,7 +247,7 @@ char **argv;
 	yyparse ();

 	if (result->type == integer)
-		printf ("%d\n", result->u.i);
+		printf ("%qd\n", result->u.i);
 	else
 		printf ("%s\n", result->u.s);

@@ -274,7 +282,7 @@ struct val *a, *b;
 	if (is_zero_or_null (a) || is_zero_or_null (b)) {
 		free_value (a);
 		free_value (b);
-		return (make_integer (0));
+		return (make_integer ((quad_t)0));
 	} else {
 		free_value (b);
 		return (a);
@@ -290,11 +298,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);	
-		r = make_integer (strcoll (a->u.s, b->u.s) == 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) == 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r = make_integer (a->u.i == b->u.i);
+		r = make_integer ((quad_t)(a->u.i == b->u.i));
 	}

 	free_value (a);
@@ -311,11 +319,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);
-		r = make_integer (strcoll (a->u.s, b->u.s) > 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) > 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r= make_integer (a->u.i > b->u.i);
+		r = make_integer ((quad_t)(a->u.i > b->u.i));
 	}

 	free_value (a);
@@ -332,11 +340,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);
-		r = make_integer (strcoll (a->u.s, b->u.s) < 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) < 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r = make_integer (a->u.i < b->u.i);
+		r = make_integer ((quad_t)(a->u.i < b->u.i));
 	}

 	free_value (a);
@@ -353,11 +361,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);
-		r = make_integer (strcoll (a->u.s, b->u.s) >= 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) >= 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r = make_integer (a->u.i >= b->u.i);
+		r = make_integer ((quad_t)(a->u.i >= b->u.i));
 	}

 	free_value (a);
@@ -374,11 +382,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);
-		r = make_integer (strcoll (a->u.s, b->u.s) <= 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) <= 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r = make_integer (a->u.i <= b->u.i);
+		r = make_integer ((quad_t)(a->u.i <= b->u.i));
 	}

 	free_value (a);
@@ -395,11 +403,11 @@ struct val *a, *b;
 	if (isstring (a) || isstring (b)) {
 		to_string (a);
 		to_string (b);
-		r = make_integer (strcoll (a->u.s, b->u.s) != 0);
+		r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) != 0));
 	} else {
 		(void)to_integer(a);
 		(void)to_integer(b);
-		r = make_integer (a->u.i != b->u.i);
+		r = make_integer ((quad_t)(a->u.i != b->u.i));
 	}

 	free_value (a);
@@ -407,6 +415,20 @@ struct val *a, *b;
 	return r;
 }

+int
+chk_plus (a, b, r)
+quad_t a, b, r;
+{
+	/* sum of two positive numbers must be positive */
+	if (a > 0 && b > 0 && r <= 0)
+		return 1;
+	/* sum of two negative numbers must be negative */
+	if (a < 0 && b < 0 && r >= 0)
+		return 1;
+	/* all other cases are OK */
+	return 0;
+}
+
 struct val *
 op_plus (a, b)
 struct val *a, *b;
@@ -417,12 +439,30 @@ struct val *a, *b;
 		errx (2, "non-numeric argument");
 	}

-	r = make_integer (a->u.i + b->u.i);
+	r = make_integer (/*(quad_t)*/(a->u.i + b->u.i));
+	if (chk_plus (a->u.i, b->u.i, r->u.i)) {
+		errx (2, "overflow");
+	}
 	free_value (a);
 	free_value (b);
 	return r;
 }
-	
+
+int
+chk_minus (a, b, r)
+quad_t a, b, r;
+{
+	/* special case subtraction of QUAD_MIN */
+	if (b == QUAD_MIN) {
+		if (a >= 0)
+			return 1;
+		else
+			return 0;
+	}
+	/* this is allowed for b != QUAD_MIN */
+	return chk_plus (a, -b, r);
+}
+
 struct val *
 op_minus (a, b)
 struct val *a, *b;
@@ -433,12 +473,28 @@ struct val *a, *b;
 		errx (2, "non-numeric argument");
 	}

-	r = make_integer (a->u.i - b->u.i);
+	r = make_integer (/*(quad_t)*/(a->u.i - b->u.i));
+	if (chk_minus (a->u.i, b->u.i, r->u.i)) {
+		errx (2, "overflow");
+	}
 	free_value (a);
 	free_value (b);
 	return r;
 }
-	
+
+int
+chk_times (a, b, r)
+quad_t a, b, r;
+{
+	/* special case: first operand is 0, no overflow possible */
+	if (a == 0)
+		return 0;
+	/* cerify that result of division matches second operand */
+	if (r / a != b)
+		return 1;
+	return 0;
+}
+
 struct val *
 op_times (a, b)
 struct val *a, *b;
@@ -449,12 +505,27 @@ struct val *a, *b;
 		errx (2, "non-numeric argument");
 	}

-	r = make_integer (a->u.i * b->u.i);
+	r = make_integer (/*(quad_t)*/(a->u.i * b->u.i));
+	if (chk_times (a->u.i, b->u.i, r->u.i)) {
+		errx (2, "overflow");
+	}
 	free_value (a);
 	free_value (b);
 	return (r);
 }
-	
+
+int
+chk_div (a, b, r)
+quad_t a, b, r;
+{
+	/* div by zero has been taken care of before */
+	/* only QUAD_MIN / -1 causes overflow */
+	if (a == QUAD_MIN && b == -1)
+		return 1;
+	/* everything else is OK */
+	return 0;
+}
+
 struct val *
 op_div (a, b)
 struct val *a, *b;
@@ -469,7 +540,10 @@ struct val *a, *b;
 		errx (2, "division by zero");
 	}

-	r = make_integer (a->u.i / b->u.i);
+	r = make_integer (/*(quad_t)*/(a->u.i / b->u.i));
+	if (chk_div (a->u.i, b->u.i, r->u.i)) {
+		errx (2, "overflow");
+	}
 	free_value (a);
 	free_value (b);
 	return r;
@@ -489,15 +563,13 @@ struct val *a, *b;
 		errx (2, "division by zero");
 	}

-	r = make_integer (a->u.i % b->u.i);
+	r = make_integer (/*(quad_t)*/(a->u.i % b->u.i));
+	/* chk_rem necessary ??? */
 	free_value (a);
 	free_value (b);
 	return r;
 }
 	
-#include <sys/types.h>
-#include <regex.h>
-
 struct val *
 op_colon (a, b)
 struct val *a, *b;
@@ -526,11 +598,11 @@ struct val *a, *b;
 			v = make_str (a->u.s + rm[1].rm_so);

 		} else {
-			v = make_integer (rm[0].rm_eo - rm[0].rm_so);
+			v = make_integer ((quad_t)(rm[0].rm_eo - rm[0].rm_so));
 		}
 	} else {
 		if (rp.re_nsub == 0) {
-			v = make_integer (0);
+			v = make_integer ((quad_t)0);
 		} else {
 			v = make_str ("");
 		}
@@ -44,11 +44,11 @@
 .Nd make links
 .Sh SYNOPSIS
 .Nm ln
-.Op Fl fsv
+.Op Fl fisv
 .Ar source_file
 .Op target_file
 .Nm ln
-.Op Fl fsv
+.Op Fl fisv
 .Ar source_file ...
 .Op target_dir
 .Nm link
@@ -72,7 +72,28 @@ to a file is one of the differences between a hard and symbolic link.
 The options are as follows:
 .Bl -tag -width flag
 .It Fl f
-Unlink any already existing file, permitting the link to occur.
+If the target file already exists,
+then unlink it so that the link may occur.
+(The
+.Fl f
+option overrides any previous
+.Fl i
+options.)
+.It Fl i
+Cause
+.Nm
+to write a prompt to standard error if the target file exists.
+If the response from the standard input begins with the character
+.Sq Li y 
+or
+.Sq Li Y ,
+then unlink the target file so that the link may occur.
+Otherwise, do not attempt the link.
+(The
+.Fl i
+option overrides any previous
+.Fl f
+options.)
 .It Fl s
 Create a symbolic link.
 .It Fl v
@@ -143,8 +164,10 @@ operation using the two passed arguments.
 .Xr symlink 7
 .Sh COMPATIBILITY
 The 
+.Fl i
+and
 .Fl v
-option is non-standard and its use in scripts is not recommended.
+options are non-standard and their use in scripts is not recommended.
 .Sh HISTORY
 An
 .Nm
@@ -56,6 +56,7 @@ static const char rcsid[] =
 #include <unistd.h>

 int	fflag;				/* Unlink existing files. */
+int	iflag;				/* Interactive mode. */
 int	sflag;				/* Symbolic, not hard, link. */
 int	vflag;				/* Verbose output. */
 					/* System link call. */
@@ -70,7 +71,6 @@ main(argc, argv)
 	int argc;
 	char *argv[];
 {
-	extern int optind;
 	struct stat sb;
 	int ch, exitval;
 	char *p, *sourcedir;
@@ -92,10 +92,15 @@ main(argc, argv)
 			usage();
 	}

-	while ((ch = getopt(argc, argv, "fsv")) != -1)
+	while ((ch = getopt(argc, argv, "fisv")) != -1)
 		switch (ch) {
 		case 'f':
 			fflag = 1;
+			iflag = 0;
+			break;
+		case 'i':
+			iflag = 1;
+			fflag = 0;
 			break;
 		case 's':
 			sflag = 1;
@@ -139,7 +144,7 @@ linkit(target, source, isdir)
 	int isdir;
 {
 	struct stat sb;
-	int exists;
+	int ch, exists, first;
 	char *p, path[MAXPATHLEN];

 	if (!sflag) {
@@ -169,10 +174,34 @@ linkit(target, source, isdir)
 		exists = !lstat(source, &sb);

 	/*
-	 * If the file exists, and -f was specified, unlink it.
-	 * Attempt the link.
+	 * If the file exists, then unlink it forcibly if -f was specified
+	 * and interactively if -i was specified.
 	 */
-	if ((fflag && exists && unlink(source)) || (*linkf)(target, source)) {
+	if (fflag && exists) {
+		if (unlink(source)) {
+			warn("%s", source);
+			return (1);
+		}
+	} else if (iflag && exists) {
+		fflush(stdout);
+		fprintf(stderr, "replace %s? ", source);
+
+		first = ch = getchar();
+		while(ch != '\n' && ch != EOF)
+			ch = getchar();
+		if (first != 'y' && first != 'Y') {
+			fprintf(stderr, "not replaced\n");
+			return (1);
+		}
+
+		if (unlink(source)) {
+			warn("%s", source);
+			return (1);
+		}
+	}
+
+	/* Attempt the link. */
+	if ((*linkf)(target, source)) {
 		warn("%s", source);
 		return (1);
 	}
@@ -185,8 +214,8 @@ void
 usage()
 {
 	(void)fprintf(stderr, "%s\n%s\n%s\n",
-	    "usage: ln [-fsv] file1 file2",
-	    "       ln [-fsv] file ... directory",
+	    "usage: ln [-fisv] file1 file2",
+	    "       ln [-fisv] file ... directory",
 	    "       link file1 file2");
 	exit(1);
 }
@@ -407,7 +407,8 @@ the
 .Nm ls
 command acts a little differently.  If you do not specify the
 .Fl F ,
-.Fl d or
+.Fl d
+or
 .Fl l
 options,
 .Nm ls
@@ -3,7 +3,12 @@


 PROG=	ls
-SRCS=	cmp.c setflags.c ls.c print.c util.c
-.PATH:	${.CURDIR}/../../lib/libc/gen
+SRCS=	cmp.c ls.c print.c util.c
+
+.if !defined(RELEASE_BUILD_FIXIT)
+CFLAGS+= -DCOLORLS
+LDADD+= -ltermcap
+DPADD+= ${LIBTERMCAP}
+.endif

 .include <bsd.prog.mk>
@@ -43,11 +43,18 @@ int	 revnamecmp __P((const FTSENT *, const FTSENT *));
 int	 statcmp __P((const FTSENT *, const FTSENT *));
 int	 revstatcmp __P((const FTSENT *, const FTSENT *));

-char	*flags_to_string __P((u_long, char *));
-void	 prcopy __P((char *, char *, int));
 void	 printcol __P((DISPLAY *));
 void	 printlong __P((DISPLAY *));
 void	 printscol __P((DISPLAY *));
 void	 usage __P((void));
-int	 len_octal __P((char *, int));
-int	 prn_octal __P((char *));
+int	 len_octal __P((const char *, int));
+int	 prn_octal __P((const char *));
+int	 prn_printable __P((const char *));
+#ifdef COLORLS
+void	 parsecolors __P((char *cs));
+void     colorquit __P((int));
+
+extern  char    *ansi_fgcol;
+extern  char    *ansi_bgcol;
+extern  char    *ansi_coloff;
+#endif
@@ -43,7 +43,7 @@
 .Nd list directory contents
 .Sh SYNOPSIS
 .Nm ls
-.Op Fl ABCFHLPRTWabcdfgiklnoqrstu1
+.Op Fl ABCFGHLPRTWabcdfgiklnoqrstu1
 .Op Ar file ...
 .Sh DESCRIPTION
 For each operand that names a
@@ -90,6 +90,10 @@ an equals sign (=) after each socket,
 a percent sign (%) after each whiteout,
 and a vertical bar (|) after each that is a
 .Tn FIFO .
+.It Fl G
+Enable colorized output.  This option is equivalent to defining
+.Ev CLICOLOR
+in the environment.  (See below).
 .It Fl H
 Symbolic links on the command line are followed.  This option is assumed if
 none of the
@@ -369,7 +373,43 @@ is set, the block counts
 (see
 .Fl s )
 will be displayed in units of that size block.
-.It COLUMNS
+.It Ev CLICOLOR
+Use
+.Tn ANSI
+color sequences to distinguish file types.
+See
+.Ev LSCOLORS
+below.
+In addition to the file types mentioned in the
+.Fl F
+option some extra attributes (setuid bit set, etc.) are also displayed.
+The colorization is dependent on a terminal type with the proper
+.Xr termcap 5
+capabilities.
+The default
+.Dq cons25
+console has the proper capabilities,
+however if you want to display the colors in an
+.Xr xterm 1
+for example,
+you need to set your
+.Ev TERM
+variable to
+.Dq xterm-color .
+Other terminal types may require similar adjustments.  Colorization
+is silently disabled if the output isn't directed to a terminal
+unless the
+.Ev CLICOLOR_FORCE
+variable is defined.
+.It Ev CLICOLOR_FORCE
+Color sequences are normally disabled if the output isn't directed to
+a terminal.  This can be overridden by setting this flag.
+The
+.Ev TERM
+variable still needs to reference a color capable terminal however
+otherwise it is not possible to determine which color sequences to
+use.
+.It Ev COLUMNS
 If this variable contains a string representing a
 decimal integer, it is used as the
 column position width for displaying
@@ -381,11 +421,84 @@ many pathname text columns to display
 based on the width provided.
 (See
 .Fl C . )
-.It Ev TZ
-The timezone to use when displaying dates.
+.It Ev LANG
+The locale to use when determining the order of day and month in the long
+.Fl l
+format output.
 See
 .Xr environ 7
 for more information.
+.It Ev LSCOLORS
+The value of this variable describes what color to use for which
+attribute when colors are enabled with
+.Ev CLICOLOR.
+This string is a concatenation of pairs of the format
+.Sy fb ,
+where
+.Sy f
+is the foreground color and
+.Sy b
+is the background color.
+.Pp
+The color designators are as follows:
+.Pp
+.Bl -tag -width 4n -offset indent -compact
+.It Sy 0
+black
+.It Sy 1
+red
+.It Sy 2
+green
+.It Sy 3
+brown
+.It Sy 4
+blue
+.It Sy 5
+magenta
+.It Sy 6
+cyan
+.It Sy 7
+light grey
+.It Sy x
+default foreground or background
+.El
+.Pp
+Note that the above are standard
+.Tn ANSI
+colors.
+The actual display may differ
+depending on the color capabilities of your terminal.
+.Pp
+The order of the attributes are as follows:
+.Pp
+.Bl -enum -offset indent -compact
+.It
+directory
+.It
+symbolic link
+.It
+socket
+.It
+pipe
+.It
+executable
+.It
+block special
+.It
+character special
+.It
+executable with setuid bit set
+.It
+executable with setgid bit set
+.It
+directory writable to others, with sticky bit
+.It
+directory writable to others, without sticky bit
+.El
+.Pp
+The default is "4x5x2x3x1x464301060203", i.e. blue foreground and
+default background for regular directories, black foreground and red
+background for setuid executables, etc.
 .It Ev LS_COLWIDTHS
 If this variable is set, it is considered to be a
 colon-delimited list of minimum column widths.  Unreasonable
@@ -394,6 +507,15 @@ a dynamically sized column).  Not all
 columns have changeable widths.  The fields are,
 in order: inode, block count, number of links, user name,
 group name, flags, file size, file name.
+.It Ev TERM
+The
+.Ev CLICOLOR
+functionality depends on a terminal type with color capabilities.
+.It Ev TZ
+The timezone to use when displaying dates.
+See
+.Xr environ 7
+for more information.
 .El
 .Sh COMPATIBILITY
 The group field is now automatically included in the long listing for
@@ -403,6 +525,8 @@ specification.
 .Sh SEE ALSO
 .Xr chflags 1 ,
 .Xr chmod 1 ,
+.Xr xterm 1 ,
+.Xr termcap 5 ,
 .Xr symlink 7 ,
 .Xr sticky 8
 .Sh HISTORY
@@ -63,6 +63,10 @@ static const char rcsid[] =
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#ifdef COLORLS
+#include <termcap.h>
+#include <signal.h>
+#endif

 #include "ls.h"
 #include "extern.h"
@@ -74,8 +78,6 @@ static const char rcsid[] =
 */
 #define	STRBUF_SIZEOF(t)	(1 + CHAR_BIT * sizeof(t) / 3 + 1)

-char *getflags __P((u_long, char *));
-
 static void	 display __P((FTSENT *, FTSENT *));
 static u_quad_t	 makenines __P((u_long));
 static int	 mastercmp __P((const FTSENT **, const FTSENT **));
@@ -111,6 +113,13 @@ int f_statustime;		/* use time of last mode change */
 int f_timesort;			/* sort by time vice name */
 int f_type;			/* add type character for non-regular files */
 int f_whiteout;			/* show whiteout entries */
+#ifdef COLORLS
+int f_color;			/* add type in color for non-regular files */
+
+char *ansi_bgcol;		/* ANSI sequence to set background colour */
+char *ansi_fgcol;		/* ANSI sequence to set foreground colour */
+char *ansi_coloff;		/* ANSI sequence to reset colours */
+#endif

 int rval;

@@ -124,6 +133,12 @@ main(argc, argv)
 	int ch, fts_options, notused;
 	char *p;

+#ifdef COLORLS
+	char termcapbuf[1024];		/* termcap definition buffer */
+	char tcapbuf[512];		/* capability buffer */
+	char *bp = tcapbuf;
+#endif
+
 	(void) setlocale(LC_ALL, "");

 	/* Terminal defaults to -Cq, non-terminal defaults to -1. */
@@ -148,7 +163,7 @@ main(argc, argv)
 		f_listdot = 1;

 	fts_options = FTS_PHYSICAL;
-	while ((ch = getopt(argc, argv, "1ABCFHLPRTWabcdfgiklnoqrstu")) != -1) {
+	while ((ch = getopt(argc, argv, "1ABCFGHLPRTWabcdfgiklnoqrstu")) != -1) {
 		switch (ch) {
 		/*
 		 * The -1, -C and -l options all override each other so shell
@@ -186,6 +201,9 @@ main(argc, argv)
 		case 'H':
 		        fts_options |= FTS_COMFOLLOW;
 			break;
+		case 'G':
+			setenv("CLICOLOR", "", 1);
+			break;
 		case 'L':
 			fts_options &= ~FTS_PHYSICAL;
 			fts_options |= FTS_LOGICAL;
@@ -259,11 +277,51 @@ main(argc, argv)
 	argc -= optind;
 	argv += optind;

+	/* Enabling of colours is conditional on the environment. */
+	if (getenv("CLICOLOR") &&
+	    (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
+#ifdef COLORLS
+		if (tgetent(termcapbuf, getenv("TERM")) == 1) {
+			ansi_fgcol = tgetstr("AF", &bp);
+			ansi_bgcol = tgetstr("AB", &bp);
+
+			/* To switch colours off use 'op' if
+			 * available, otherwise use 'oc', or
+			 * don't do colours at all. */
+			ansi_coloff = tgetstr("op", &bp);
+			if (!ansi_coloff)
+				ansi_coloff = tgetstr("oc", &bp);
+			if (ansi_fgcol && ansi_bgcol && ansi_coloff)
+				f_color = 1;
+		}
+#else
+		(void)fprintf(stderr, "Color support not compiled in.\n");
+#endif /*COLORLS*/
+
+#ifdef COLORLS
+	if (f_color) {
+		/*
+		 * We can't put tabs and color sequences together:
+		 * column number will be incremented incorrectly
+		 * for "stty oxtabs" mode.
+		 */
+		f_notabs = 1;
+		(void) signal(SIGINT, colorquit);
+		(void) signal(SIGQUIT, colorquit);
+		parsecolors(getenv("LSCOLORS"));
+	}
+#endif
+
 	/*
 	 * If not -F, -i, -l, -s or -t options, don't require stat
-	 * information.
+	 * information, unless in color mode in which case we do
+	 * need this to determine which colors to display.
 	 */
-	if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type)
+	if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type
+#ifdef COLORLS
+	    && !f_color
+#endif
+	   )
 		fts_options |= FTS_NOSTAT;

 	/*
@@ -471,7 +529,11 @@ display(p, list)
 		 case 4: maxgroup = 0;
 		 case 5: maxflags = 0;
 		 case 6: maxsize  = 0;
-		 case 7: maxlen   = 0, f_notabs = 0;
+		 case 7: maxlen   = 0;
+#ifdef COLORLS
+		 if (!f_color)
+#endif
+			 f_notabs = 0;
 		}
 		maxinode = makenines(maxinode);
 		maxblock = makenines(maxblock);
@@ -508,8 +570,6 @@ display(p, list)
 				continue;
 			}
 		}
-		if (f_nonprint)
-			prcopy(cur->fts_name, cur->fts_name, cur->fts_namelen);
 		if (cur->fts_namelen > maxlen)
 			maxlen = cur->fts_namelen;
 		if (f_octal || f_octal_escape) {
@@ -545,7 +605,13 @@ display(p, list)
 				if ((glen = strlen(group)) > maxgroup)
 					maxgroup = glen;
 				if (f_flags) {
-					flags = getflags(sp->st_flags, "-");
+					flags = fflagstostr(sp->st_flags);
+					if (flags != NULL && *flags == '\0') {
+						free(flags);
+						flags = strdup("-");
+					}
+					if (flags == NULL)
+						err(1, NULL);
 					if ((flen = strlen(flags)) > maxflags)
 						maxflags = flen;
 				} else
@@ -567,6 +633,7 @@ display(p, list)
 				if (f_flags) {
 					np->flags = &np->data[ulen + glen + 2];
 				  	(void)strcpy(np->flags, flags);
+					free(flags);
 				}
 				cur->fts_pointer = np;
 			}
@@ -48,11 +48,15 @@ extern int f_inode;		/* print inode */
 extern int f_longform;		/* long listing format */
 extern int f_octal;		/* print unprintables in octal */
 extern int f_octal_escape;	/* like f_octal but use C escapes if possible */
+extern int f_nonprint;		/* show unprintables as ? */
 extern int f_sectime;		/* print the real time for all files */
 extern int f_size;		/* list size in short listing */
 extern int f_statustime;	/* use time of last mode change */
 extern int f_notabs;		/* don't use tab-separated multi-col output */
 extern int f_type;		/* add type character for non-regular files */
+#ifdef COLORLS
+extern int f_color;		/* add type in color for non-regular files */
+#endif

 typedef struct {
 	FTSENT *list;
@@ -56,6 +56,11 @@ static const char rcsid[] =
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
+#ifdef COLORLS
+#include <ctype.h>
+#include <termcap.h>
+#include <signal.h>
+#endif

 #include "ls.h"
 #include "extern.h"
@@ -64,9 +69,35 @@ static int	printaname __P((FTSENT *, u_long, u_long));
 static void	printlink __P((FTSENT *));
 static void	printtime __P((time_t));
 static int	printtype __P((u_int));
+#ifdef COLORLS
+static void     endcolor __P((int));
+static int      colortype __P((mode_t));
+#endif

 #define	IS_NOPRINT(p)	((p)->fts_number == NO_PRINT)

+#ifdef COLORLS
+/* Most of these are taken from <sys/stat.h> */
+typedef enum Colors {
+    C_DIR,     /* directory */
+    C_LNK,     /* symbolic link */
+    C_SOCK,    /* socket */
+    C_FIFO,    /* pipe */
+    C_EXEC,    /* executable */
+    C_BLK,     /* block special */
+    C_CHR,     /* character special */
+    C_SUID,    /* setuid executable */
+    C_SGID,    /* setgid executable */
+    C_WSDIR,   /* directory writeble to others, with sticky bit */
+    C_WDIR,    /* directory writeble to others, without sticky bit */
+    C_NUMCOLORS        /* just a place-holder */
+} Colors ;
+
+char *defcolors = "4x5x2x3x1x464301060203";
+
+static int colors[C_NUMCOLORS][2];
+#endif
+
 void
 printscol(dp)
 	DISPLAY *dp;
@@ -81,6 +112,21 @@ printscol(dp)
 	}
 }

+/*
+ * print name in current style
+ */
+static int
+printname(name)
+	const char *name;
+{
+	if (f_octal || f_octal_escape)
+		return prn_octal(name);
+	else if (f_nonprint)
+		return prn_printable(name);
+	else
+		return printf("%s", name);
+}
+
 void
 printlong(dp)
 	DISPLAY *dp;
@@ -89,6 +135,9 @@ printlong(dp)
 	FTSENT *p;
 	NAMES *np;
 	char buf[20];
+#ifdef COLORLS
+	int color_printed = 0;
+#endif

 	if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
 		(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
@@ -128,8 +177,15 @@ printlong(dp)
 			printtime(sp->st_ctime);
 		else
 			printtime(sp->st_mtime);
-		if (f_octal || f_octal_escape) (void)prn_octal(p->fts_name);
-		else (void)printf("%s", p->fts_name);
+#ifdef COLORLS
+		if (f_color)
+			color_printed = colortype(sp->st_mode);
+#endif
+		(void)printname(p->fts_name);
+#ifdef COLORLS
+		if (f_color && color_printed)
+			endcolor(0);
+#endif
 		if (f_type)
 			(void)printtype(sp->st_mode);
 		if (S_ISLNK(sp->st_mode))
@@ -221,6 +277,9 @@ printaname(p, inodefield, sizefield)
 {
 	struct stat *sp;
 	int chcnt;
+#ifdef COLORLS
+	int color_printed = 0;
+#endif

 	sp = p->fts_statp;
 	chcnt = 0;
@@ -229,8 +288,15 @@ printaname(p, inodefield, sizefield)
 	if (f_size)
 		chcnt += printf("%*qd ",
 		    (int)sizefield, howmany(sp->st_blocks, blocksize));
-	chcnt += (f_octal || f_octal_escape) ? prn_octal(p->fts_name)
-	                                     : printf("%s", p->fts_name);
+#ifdef COLORLS
+	if (f_color)
+		color_printed = colortype(sp->st_mode);
+#endif
+	chcnt += printname(p->fts_name);
+#ifdef COLORLS
+	if (f_color && color_printed)
+		endcolor(0);
+#endif
 	if (f_type)
 		chcnt += printtype(sp->st_mode);
 	return (chcnt);
@@ -240,30 +306,28 @@ static void
 printtime(ftime)
 	time_t ftime;
 {
-	int i;
 	char longstring[80];
 	static time_t now;
+	const char *format;

 	if (now == 0)
 		now = time(NULL);

-	strftime(longstring, sizeof(longstring), "%c", localtime(&ftime));
-	for (i = 4; i < 11; ++i)
-		(void)putchar(longstring[i]);
-
 #define	SIXMONTHS	((365 / 2) * 86400)
+	/* "%Ef" is a FreeBSD strftime definition for "%e %b" or "%b %e".
+	 * Actually format is locale sensitive.
+	 */
 	if (f_sectime)
-		for (i = 11; i < 24; i++)
-			(void)putchar(longstring[i]);
+		/* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
+		format = "%Ef %T %Y ";
 	else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
-		for (i = 11; i < 16; ++i)
-			(void)putchar(longstring[i]);
-	else {
-		(void)putchar(' ');
-		for (i = 20; i < 24; ++i)
-			(void)putchar(longstring[i]);
-	}
-	(void)putchar(' ');
+		/* mmm dd hh:mm || dd mmm hh:mm */
+		format = "%Ef %R ";
+	else
+		/* mmm dd  yyyy || dd mmm  yyyy */
+		format = "%Ef  %Y ";
+	strftime(longstring, sizeof(longstring), format, localtime(&ftime));
+	fputs(longstring, stdout);
 }

 static int
@@ -294,6 +358,138 @@ printtype(mode)
 	return (0);
 }

+#ifdef COLORLS
+static int
+putch(c)
+	int c;
+{
+	(void) putchar(c);
+	return 0;
+}
+
+static int
+writech(c)
+	int c;
+{
+	char tmp = c;
+
+	(void) write(STDOUT_FILENO, &tmp, 1);
+	return 0;
+}
+
+static void
+printcolor(c)
+       Colors c;
+{
+	char *ansiseq;
+
+	if (colors[c][0] != -1) {
+		ansiseq = tgoto(ansi_fgcol, 0, colors[c][0]);
+		if (ansiseq)
+			tputs(ansiseq, 1, putch);
+	}
+
+	if (colors[c][1] != -1) {
+		ansiseq = tgoto(ansi_bgcol, 0, colors[c][1]);
+		if (ansiseq)
+			tputs(ansiseq, 1, putch);
+	}
+}
+
+static void
+endcolor(sig)
+	int sig;
+{
+	tputs(ansi_coloff, 1, sig ? writech : putch);
+}
+
+static int
+colortype(mode)
+       mode_t mode;
+{
+	switch(mode & S_IFMT) {
+	      case S_IFDIR:
+		if (mode & S_IWOTH)
+		    if (mode & S_ISTXT)
+			printcolor(C_WSDIR);
+		    else
+			printcolor(C_WDIR);
+		else
+		    printcolor(C_DIR);
+		return(1);
+	      case S_IFLNK:
+		printcolor(C_LNK);
+		return(1);
+	      case S_IFSOCK:
+		printcolor(C_SOCK);
+		return(1);
+	      case S_IFIFO:
+		printcolor(C_FIFO);
+		return(1);
+	      case S_IFBLK:
+		printcolor(C_BLK);
+		return(1);
+	      case S_IFCHR:
+		printcolor(C_CHR);
+		return(1);
+	}
+	if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
+		if (mode & S_ISUID)
+		    printcolor(C_SUID);
+		else if (mode & S_ISGID)
+		    printcolor(C_SGID);
+		else
+		    printcolor(C_EXEC);
+		return(1);
+	}
+	return(0);
+}
+
+void
+parsecolors(cs)
+char *cs;
+{
+	int i, j, len;
+	char c[2];
+
+	if (cs == NULL)    cs = ""; /* LSCOLORS not set */
+	len = strlen(cs);
+	for (i = 0 ; i < C_NUMCOLORS ; i++) {
+		if (len <= 2*i) {
+			c[0] = defcolors[2*i];
+			c[1] = defcolors[2*i+1];
+		}
+		else {
+			c[0] = cs[2*i];
+			c[1] = cs[2*i+1];
+		}
+		for (j = 0 ; j < 2 ; j++) {
+			if ((c[j] < '0' || c[j] > '7') &&
+			    tolower((unsigned char)c[j]) != 'x') {
+				fprintf(stderr,
+					"error: invalid character '%c' in LSCOLORS env var\n",
+					c[j]);
+				c[j] = defcolors[2*i+j];
+			}
+			if (tolower((unsigned char)c[j]) == 'x')
+			    colors[i][j] = -1;
+			else
+			    colors[i][j] = c[j]-'0';
+		}
+	}
+}
+
+void
+colorquit(sig)
+	int sig;
+{
+	endcolor(sig);
+
+	(void) signal(sig, SIG_DFL);
+	(void) kill(getpid(), sig);
+}
+#endif /*COLORLS*/
+ 
 static void
 printlink(p)
 	FTSENT *p;
@@ -311,9 +507,6 @@ printlink(p)
 		return;
 	}
 	path[lnklen] = '\0';
-	if (f_octal || f_octal_escape) {
-	        (void)printf(" -> ");
-	        (void)prn_octal(path);
-	}
-	else (void)printf(" -> %s", path);
+	(void)printf(" -> ");
+	printname(path);
 }
@@ -56,17 +56,19 @@ static const char rcsid[] =
 #include "ls.h"
 #include "extern.h"

-void
-prcopy(src, dest, len)
-	char *src, *dest;
-	int len;
+int
+prn_printable(s)
+	const char *s;
 {
-	unsigned char ch;
+	unsigned char c;
+	int n;

-	while (len--) {
-		ch = *src++;
-		*dest++ = isprint(ch) ? ch : '?';
-	}
+	for (n = 0; (c = *s) != '\0'; ++s, ++n)
+		if (isprint(c))
+			putchar(c);
+		else
+			putchar('?');
+	return n;
 }

 /*
@@ -84,7 +86,7 @@ prcopy(src, dest, len)

 int
 len_octal(s, len)
-        char *s;
+        const char *s;
 	int len;
 {
 	int r = 0;
@@ -96,7 +98,7 @@ len_octal(s, len)

 int
 prn_octal(s)
-        char *s;
+        const char *s;
 {
        unsigned char ch;
 	int len = 0;
@@ -158,7 +160,12 @@ prn_octal(s)
 void
 usage()
 {
-	(void)fprintf(stderr, "usage: ls [-ACFHLPRTWacdfgiklnoqrstu1]"
+	(void)fprintf(stderr,
+#ifdef COLORLS
+	"usage: ls [-ABCFGHLPRTWabcdfgiklnoqrstu1]"
+#else
+	"usage: ls [-ABCFHLPRTWabcdfgiklnoqrstu1]"
+#endif
 		      " [file ...]\n");
 	exit(1);
 }
@@ -221,7 +221,7 @@ do_move(from, to)
 	 * it's a regular file, do the copy internally; otherwise, use
 	 * cp and rm.
 	 */
-	if (stat(from, &sb)) {
+	if (lstat(from, &sb)) {
 		warn("%s", from);
 		return (1);
 	}
@@ -290,6 +290,17 @@ err:		if (unlink(to))
 	}
 	if (fchmod(to_fd, sbp->st_mode))
 		warn("%s: set mode (was: 0%03o)", to, oldmode);
+	/*
+	 * XXX
+	 * NFS doesn't support chflags; ignore errors unless there's reason
+	 * to believe we're losing bits.  (Note, this still won't be right
+	 * if the server supports flags and we were trying to *remove* flags
+	 * on a file that we copied, i.e., that we didn't create.)
+	 */
+	errno = 0;
+	if (fchflags(to_fd, sbp->st_flags))
+		if (errno != EOPNOTSUPP || sbp->st_flags != 0)
+			warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);

 	tval[0].tv_sec = sbp->st_atime;
 	tval[1].tv_sec = sbp->st_mtime;
@@ -64,8 +64,8 @@ static const char rcsid[] =
 #define MODELEN 20
 #define DATELEN 64
 #define SIXMONTHS	 ((365 / 2) * 86400)
-#define CURFRMT		"%b %e %H:%M"
-#define OLDFRMT		"%b %e  %Y"
+#define CURFRMT         "%Ef %H:%M"
+#define OLDFRMT         "%Ef  %Y"
 #ifndef UT_NAMESIZE
 #define UT_NAMESIZE	8
 #endif
@@ -188,8 +188,6 @@ pax_options(argc, argv)
 	unsigned int bflg = 0;
 	register char *pt;
        FSUB tmp;
-	extern char *optarg;
-	extern int optind;

 	/*
 	 * process option flags
@@ -185,7 +185,7 @@ state(k, ve)
 		break;

 	case SSLEEP:
-		if (flag & P_SINTR)	/* interuptable (long) */
+		if (flag & P_SINTR)	/* interruptable (long) */
 			*cp = p->p_slptime >= MAXSLP ? 'I' : 'S';
 		else
 			*cp = 'D';
@@ -355,7 +355,7 @@ main(argc, argv)
 	 */
 	printheader();
 	if (nentries == 0)
-		exit(0);
+		exit(1);
 	/*
 	 * sort proc list
 	 */
@@ -2,10 +2,9 @@
 # $FreeBSD$

 PROG=	rm
-SRCS=	rm.c setflags.c
+SRCS=	rm.c

 LINKS=	${BINDIR}/rm ${BINDIR}/unlink
 MLINKS=	rm.1 unlink.1
-.PATH:	${.CURDIR}/../../lib/libc/gen

 .include <bsd.prog.mk>
@@ -46,7 +46,6 @@ static const char rcsid[] =
 #endif
 #endif /* not lint */

-#include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/param.h>
 #include <sys/mount.h>
@@ -61,8 +60,6 @@ static const char rcsid[] =
 #include <sysexits.h>
 #include <unistd.h>

-char	*getflags __P((u_long, char *));
-
 int dflag, eval, fflag, iflag, Pflag, vflag, Wflag, stdin_ok;
 uid_t uid;

@@ -424,7 +421,7 @@ check(path, name, sp)
 	struct stat *sp;
 {
 	int ch, first;
-	char modep[15], flagsp[128];
+	char modep[15], *flagsp;

 	/* Check -i first. */
 	if (iflag)
@@ -442,15 +439,15 @@ check(path, name, sp)
 		    (!(sp->st_flags & (UF_APPEND|UF_IMMUTABLE)) || !uid)))
 			return (1);
 		strmode(sp->st_mode, modep);
-		strcpy(flagsp, getflags(sp->st_flags, NULL));
-		if (*flagsp)
-			strcat(flagsp, " ");
-		(void)fprintf(stderr, "override %s%s%s/%s %sfor %s? ",
+		if ((flagsp = fflagstostr(sp->st_flags)) == NULL)
+			err(1, NULL);
+		(void)fprintf(stderr, "override %s%s%s/%s %s%sfor %s? ",
 		    modep + 1, modep[9] == ' ' ? "" : " ",
 		    user_from_uid(sp->st_uid, 0),
 		    group_from_gid(sp->st_gid, 0),
-		    *flagsp ? flagsp : "",
+		    *flagsp ? flagsp : "", *flagsp ? " " : "", 
 		    path);
+		free(flagsp);
 	}
 	(void)fflush(stderr);

@@ -1,10 +1,29 @@
 #	@(#)Makefile	8.1 (Berkeley) 5/31/93
 # $FreeBSD$

-.PATH:	${.CURDIR}/../../contrib/sendmail/rmail
+SENDMAIL_DIR=${.CURDIR}/../../contrib/sendmail
+.PATH:	${SENDMAIL_DIR}/rmail

 PROG=	rmail
+SRCS=	rmail.c
 MAN8=	rmail.8
+CFLAGS+=-I${SENDMAIL_DIR}/include
+
+.if exists(${.OBJDIR}/../../lib/libsmutil)
+LIBSMUTILDIR:=	${.OBJDIR}/../../lib/libsmutil
+.else
+LIBSMUTILDIR!=	cd ${.CURDIR}/../../lib/libsmutil; make -V .OBJDIR
+.endif
+LIBSMUTIL:=	${LIBSMUTILDIR}/libsmutil.a
+
+DPADD+=	${LIBSMUTIL}
+LDADD+=	${LIBSMUTIL}
+
+# User customizations to the sendmail build environment
+CFLAGS+=${SENDMAIL_CFLAGS}
+LDFLAGS+=${SENDMAIL_LDFLAGS}
+LDADD+=${SENDMAIL_LDADD}
+DPADD+=${SENDMAIL_DPADD}

 # If you want to have your rmail queuing the mail only, uncomment the
 # following:
@@ -96,6 +96,10 @@ rm_path(path)
 {
 	char *p;

+	p = path + strlen(path);
+	while (--p > path && *p == '/')
+		;
+	*++p = '\0';
 	while ((p = strrchr(path, '/')) != NULL) {
 		/* Delete trailing slashes. */
 		while (--p > path && *p == '/')
@@ -109,6 +109,7 @@ setalias(name, val)
 	ap->val[len+1] = '\0';
 	}
 #endif
+	ap->flag = 0;
 	ap->next = *app;
 	*app = ap;
 	INTON;
@@ -45,7 +45,6 @@ static const char rcsid[] =
  "$FreeBSD$";
 #endif /* not lint */

-#include <unistd.h>
 #include "y.tab.h"
 #include "error.h"

@@ -79,8 +79,10 @@ main(argc, argv)
 		while ((c = *p++) != '\0') {
 			if (c == '\\' && eflag) {
 				switch (*p++) {
+				case 'a':  c = '\a';  break;
 				case 'b':  c = '\b';  break;
 				case 'c':  return 0;		/* exit */
+				case 'e':  c = '\e';  break;
 				case 'f':  c = '\f';  break;
 				case 'n':  c = '\n';  break;
 				case 'r':  c = '\r';  break;
@@ -82,7 +82,6 @@ extern volatile sig_atomic_t exception;

 extern volatile sig_atomic_t suppressint;
 extern volatile sig_atomic_t intpending;
-extern char *commandname;	/* name of command--printed on error */

 #define INTOFF suppressint++
 #define INTON { if (--suppressint == 0 && intpending) onint(); }
@@ -850,6 +850,7 @@ evalcommand(cmd, flags, backcmd)
 		exitstatus = (*builtinfunc[cmdentry.u.index])(argc, argv);
 		flushall();
 cmddone:
+		cmdenviron = NULL;
 		out1 = &output;
 		out2 = &errout;
 		freestdout();
@@ -891,14 +891,21 @@ typecmd(argc, argv)

 		switch (entry.cmdtype) {
 		case CMDNORMAL: {
-			int j = entry.u.index;
-			char *path = pathval(), *name;
-			do { 
-				name = padvance(&path, argv[i]);
-				stunalloc(name);
-			} while (--j >= 0);
-			out1fmt(" is%s %s\n",
-			    cmdp ? " a tracked alias for" : "", name);
+			if (strchr(argv[i], '/') == NULL) {
+				char *path = pathval(), *name;
+				int j = entry.u.index;
+				do {
+					name = padvance(&path, argv[i]);
+					stunalloc(name);
+				} while (--j >= 0);
+				out1fmt(" is%s %s\n",
+				    cmdp ? " a tracked alias for" : "", name);
+			} else {
+				if (access(argv[i], X_OK) == 0)
+					out1fmt(" is %s\n", argv[i]);
+				else
+					out1fmt(": %s\n", strerror(errno));
+			}
 			break;
 		}
 		case CMDFUNCTION:
@@ -910,7 +917,7 @@ typecmd(argc, argv)
 			break;

 		default:
-			out1str(" not found\n");
+			out1str(": not found\n");
 			error |= 127;
 			break;
 		}
@@ -667,7 +667,7 @@ again: /* jump here after setting a variable with ${var=text} */
 		set = varisset(var, varflags & VSNUL);
 		val = NULL;
 	} else {
-		val = lookupvar(var);
+		val = bltinlookup(var, 1);
 		if (val == NULL || ((varflags & VSNUL) && val[0] == '\0')) {
 			val = NULL;
 			set = 0;
@@ -168,8 +168,6 @@ histcmd(argc, argv)
 	int argc;
 	char **argv;
 {
-	extern char *optarg;
-	extern int optind, optopt, optreset;
 	int ch;
 	char *editor = NULL;
 	const HistEvent *he;
@@ -210,7 +208,7 @@ histcmd(argc, argv)
 	      (ch = getopt(argc, argv, ":e:lnrs")) != -1)
 		switch ((char)ch) {
 		case 'e':
-			editor = optarg;
+			editor = shoptarg;
 			break;
 		case 'l':
 			lflg = 1;
@@ -971,7 +971,6 @@ stoppedjobs()

 STATIC char *cmdnextc;
 STATIC int cmdnleft;
-STATIC void cmdtxt(), cmdputs();
 #define MAXCMDTEXT	200

 char *
@@ -54,7 +54,7 @@ static const char rcsid[] =
 #include <unistd.h>
 #include <fcntl.h>
 #include <locale.h>
-
+#include <errno.h>

 #include "shell.h"
 #include "main.h"
@@ -81,7 +81,6 @@ static const char rcsid[] =

 int rootpid;
 int rootshell;
-extern int errno;
 #if PROFILE
 short profile_buf[16384];
 extern int etext();
@@ -254,12 +253,13 @@ cmdloop(top)
 			evaltree(n, 0);
 		}
 		popstackmark(&smark);
+		setstackmark(&smark);
 		if (evalskip == SKIPFILE) {
 			evalskip = 0;
 			break;
 		}
 	}
-	popstackmark(&smark);		/* unnecessary */
+	popstackmark(&smark);
 }


@@ -118,6 +118,7 @@ struct stack_block {

 struct stack_block stackbase;
 struct stack_block *stackp = &stackbase;
+struct stackmark *markp;
 char *stacknxt = stackbase.space;
 int stacknleft = MINSIZE;
 int sstrnleft;
@@ -176,6 +177,8 @@ setstackmark(mark)
 	mark->stackp = stackp;
 	mark->stacknxt = stacknxt;
 	mark->stacknleft = stacknleft;
+	mark->marknext = markp;
+	markp = mark;
 }


@@ -186,6 +189,7 @@ popstackmark(mark)
 	struct stack_block *sp;

 	INTOFF;
+	markp = mark->marknext;
 	while (stackp != mark->stackp) {
 		sp = stackp;
 		stackp = sp->prev;
@@ -215,6 +219,7 @@ growstackblock()
 	char *oldspace;
 	int oldlen;
 	struct stack_block *sp;
+	struct stack_block *oldstackp;

 	newlen = ALIGN(stacknleft * 2 + 100);
 	oldspace = stacknxt;
@@ -222,6 +227,7 @@ growstackblock()

 	if (stacknxt == stackp->space && stackp != &stackbase) {
 		INTOFF;
+		oldstackp = stackp;
 		sp = stackp;
 		stackp = sp->prev;
 		sp = ckrealloc((pointer)sp, sizeof(struct stack_block) - 
@@ -230,6 +236,19 @@ growstackblock()
 		stackp = sp;
 		stacknxt = sp->space;
 		stacknleft = newlen;
+		{
+		  /* Stack marks pointing to the start of the old block
+		   * must be relocated to point to the new block 
+		   */
+		  struct stackmark *xmark;
+		  xmark = markp;
+		  while (xmark != NULL && xmark->stackp == oldstackp) {
+		    xmark->stackp = stackp;
+		    xmark->stacknxt = stacknxt;
+		    xmark->stacknleft = stacknleft;
+		    xmark = xmark->marknext;
+		  }
+		}
 		INTON;
 	} else {
 		p = stalloc(newlen);
@@ -41,6 +41,7 @@ struct stackmark {
 	struct stack_block *stackp;
 	char *stacknxt;
 	int stacknleft;
+        struct stackmark *marknext;
 };


@@ -67,9 +67,6 @@ static const char rcsid[] =

 #undef eflag

-extern char **argptr;		/* argument list for builtin command */
-
-
 /*
 * The read builtin.  The -r option causes backslashes to be treated like
 * ordinary characters.
@@ -105,7 +102,7 @@ readcmd(argc, argv)
 	while ((i = nextopt("erp:t:")) != '\0') {
 		switch(i) {
 		case 'p':
-			prompt = optarg;
+			prompt = shoptarg;
 			break;
 		case 'e':
 			break;
@@ -113,8 +110,8 @@ readcmd(argc, argv)
 			rflag = 1;
 			break;
 		case 't':
-			tv.tv_sec = strtol(optarg, &tvptr, 0);
-			if (tvptr == optarg)
+			tv.tv_sec = strtol(shoptarg, &tvptr, 0);
+			if (tvptr == shoptarg)
 				error("timeout value");
 			switch(*tvptr) {
 			case 0: