70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.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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static int
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fail(const char *message)
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{
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fprintf(stderr, "%s\n", message);
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return (1);
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}
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int
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main(int argc, char **argv)
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{
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char target[256];
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ssize_t length;
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int descriptor;
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if (argc < 3)
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return (fail("usage: B14-chunk-probe OP PATH [TARGET]"));
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if (strcmp(argv[1], "readlink-pass") == 0) {
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if (argc != 4)
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return (fail("readlink-pass requires an expected target"));
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length = readlink(argv[2], target, sizeof(target));
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if (length < 0)
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return (fail("readlink-pass unexpectedly failed"));
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if ((size_t)length != strlen(argv[3]) ||
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memcmp(target, argv[3], (size_t)length) != 0)
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return (fail("readlink-pass returned the wrong target"));
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return (0);
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}
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if (strcmp(argv[1], "readlink-integrity") == 0) {
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errno = 0;
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if (readlink(argv[2], target, sizeof(target)) >= 0 ||
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errno != EINTEGRITY)
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return (fail("readlink did not return EINTEGRITY"));
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return (0);
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}
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if (strcmp(argv[1], "open-unsupported") == 0) {
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errno = 0;
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descriptor = open(argv[2], O_RDONLY | O_NONBLOCK);
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if (descriptor >= 0) {
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close(descriptor);
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return (fail("special vnode unexpectedly opened"));
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}
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if (errno != EOPNOTSUPP)
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return (fail("special vnode did not return EOPNOTSUPP"));
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return (0);
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}
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if (strcmp(argv[1], "stat-integrity") == 0 ||
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strcmp(argv[1], "stat-unsupported") == 0) {
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struct stat status;
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int expected;
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expected = strcmp(argv[1], "stat-integrity") == 0 ?
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EINTEGRITY : EOPNOTSUPP;
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errno = 0;
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if (lstat(argv[2], &status) == 0 || errno != expected)
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return (fail("stat did not return the expected errno"));
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return (0);
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}
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return (fail("unknown B14 probe operation"));
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}
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