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Devin Teske
158c59210d
snprintf(3) returns the length that would have been written, so an ambiguous prefix can fill the match buffer with no sign that names were cut off. Append " (truncated)" when that happens. Drop the empty statement when scanning option arguments: only a separate argument consumes the next argv entry. Bump sysconf(8) to 2.2.1. Suggested by: fuz Reviewed by: fuz Differential Revision: https://reviews.freebsd.org/D60815
218 lines
6.3 KiB
C
218 lines
6.3 KiB
C
/*
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* Copyright (c) 2013-2026 Devin Teske <[email protected]>
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* Copyright (c) 2021-2026 Faraz Vahedi <[email protected]>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#ifndef _SYSCONF_PRIV_H_
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#define _SYSCONF_PRIV_H_
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#ifdef __FreeBSD__
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#include <sys/param.h>
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#include <sys/capsicum.h>
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#include <sys/jail.h>
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#include <sys/linker.h>
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#include <sys/sysctl.h>
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#include <capsicum_helpers.h>
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#include <jail.h>
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#endif
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#include <bsdconf.h>
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#include <dirent.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifndef __unused
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#define __unused /* not all compilers support attributes */
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#endif
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#define SYSCONF_VERSION "2.2.1 2026-10-17"
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/* getopt(3) optstring; shared by parse_options() and find_target() */
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#define OPTSTRING "AacdDEeFf:hij:k:lLnNqR:svVx"
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/* One assignment step recorded for `-V' trails */
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struct trail_step {
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size_t fileidx; /* index into conf_files */
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uint32_t line; /* 1-based line in that file */
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enum bsdconf_op op; /* operator of this statement */
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char *piece; /* unquoted fragment */
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char *effective; /* value after applying the op */
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};
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/*
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* One make(1) assignment statement for `name-=word' strikes: the last
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* statement whose piece contains the word is rewritten (or removed if
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* the piece becomes empty).
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*/
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struct make_assign {
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size_t fileidx;
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uint32_t line;
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enum bsdconf_op op;
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char *piece;
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};
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/* Requests to process (one per name argument) */
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struct request {
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const char *name; /* directive name */
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const char *newvalue; /* value to write (NULL for reads) */
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enum bsdconf_op op; /* assignment operator (writes) */
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char listop; /* `+' append / `-' strike words */
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char *value; /* value read from file(s) */
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int found; /* directive seen while parsing */
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int append_present; /* identical make `+=value' line */
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int remove; /* nonzero for `-x' removals */
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int srcidx; /* conf file that last set the value
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(authoritative); -1 if unset */
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uint32_t line; /* 1-based line of that definition */
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unsigned char *infile; /* per-file presence map */
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struct trail_step *trail; /* `-V' assignment steps */
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size_t ntrail;
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struct make_assign *assigns; /* make `-=': per-statement pieces */
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size_t nassigns;
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};
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/* Union of all directives, for `-a' against multi-file targets */
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struct dumpent {
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char *name; /* directive name */
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char *value; /* last value seen */
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int srcidx; /* conf file that last set the value */
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uint32_t line; /* 1-based line of that definition */
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struct trail_step *trail; /* `-V' assignment steps */
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size_t ntrail;
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};
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/* Request / dump state (defined in sysconf.c) */
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extern struct request *reqs;
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extern unsigned int nreqs;
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extern struct dumpent *dumps;
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extern size_t ndumps;
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extern size_t dumpsize;
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/* Resolved target state */
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extern char **conf_files;
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extern size_t nconf_files;
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extern size_t conf_scanidx;
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extern size_t write_idx;
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extern int defaults_idx;
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extern enum bsdconf_format format;
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/* Display / mode flags */
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extern const char *pgm;
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extern bool check;
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extern bool defaults_only;
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extern bool dump_all;
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extern bool existing_only;
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extern bool ignore_unknown;
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extern bool list_all;
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extern bool list_files;
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extern bool name_only;
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extern bool quiet;
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extern bool remove_mode;
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extern bool set_knobs;
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extern bool show_desc;
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extern bool show_equals;
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extern bool show_file;
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extern bool value_only;
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extern bool verbose;
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extern bool verbose_trail;
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extern bool with_defaults;
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/* Option arguments */
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extern const char *file;
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extern bool file_stdin;
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extern const char *jailname;
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extern const char *module;
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extern const char *rootdir;
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/* sysconf_print.c */
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int make_knob_name_p(const char *_name);
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int make_knob_p(const char *_name);
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void warn_with_equals_no(const char *_name, const char *_value,
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const char *_path, uint32_t _line);
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void print_pair(const char *_path, const char *_directive,
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const char *_value);
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const char *op_str(enum bsdconf_op _op);
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int trail_push(struct trail_step **_trailp, size_t *_ntrailp,
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size_t _fileidx, uint32_t _line, enum bsdconf_op _op,
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const char *_piece, const char *_effective);
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void trail_free(struct trail_step *_trail, size_t _ntrail);
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void print_trail(const char *_name,
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const struct trail_step *_trail, size_t _ntrail);
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void print_write_echo(const char *_path, uint32_t _line,
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const char *_name, enum bsdconf_op _op, const char *_oldv,
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const char *_newv, int _changed, int _added, int _removed);
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/* sysconf_resolve.c */
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char *defaults_path(void);
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void resolve_target(const char *_target);
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int do_list(void);
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/* sysconf_scan.c */
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char *make_apply(enum bsdconf_op _op, const char *_old,
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const char *_piece);
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int scan_pass(int _sandbox);
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/* sysconf_edit_assign.c */
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void split_request(char *_arg, struct request *_req, int _remove);
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int list_has(const char *_list, const char *_word, size_t _wlen);
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char *list_merge(const char *_current, const char *_words, int _op);
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int merge_list_requests(void);
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/* sysconf_edit_make.c */
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int make_strike_p(const struct request *_req);
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int make_assign_push(struct request *_req, enum bsdconf_op _op,
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const char *_piece, uint32_t _line);
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int do_make_strikes(int _check_only);
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/* sysconf_edit_write.c */
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int do_checks(void);
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int do_writes(void);
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/* sysconf_query_value.c */
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int do_reads(void);
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/* sysconf_query_desc.c */
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void load_descriptions(void);
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void print_desc(const char *_directive);
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int describe_defaults(void);
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/* sysconf_query_sysctl.c */
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#if defined(__FreeBSD__)
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int sysctl_descr(const char *_name, char *_buf, size_t _bufsize);
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int describe_sysctl(void);
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int sysctl_writable(const char *_name, const char *_value,
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int _quiet_unknown);
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#endif
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/* sysconf-targets.c */
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int find_operand(int _argc, char **_argv, int _from, int _past_dd);
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const char *resolve_keyword(const char *_token,
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const char *const *_keywords, const char *_what);
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const char *target_resolve(int *_argcp, char **_argv);
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/* sysconf.c */
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void usage(void);
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void help(void);
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/* sysconf_poudriere.c */
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int poudriere_longopt_p(const char *_arg);
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int poudriere_dispatch(int _argc, char **_argv, int _tgt);
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int poudriere_native(void);
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void poudriere_setup(void);
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void poudriere_usage(void);
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void poudriere_help(void);
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#endif /* !_SYSCONF_PRIV_H_ */
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