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/* $OpenBSD: dirname.c,v 1.16 2016/10/28 07:22:59 schwarze Exp $ */ |
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/* |
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* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <err.h> |
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#include <libgen.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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static void __dead usage(void); |
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int |
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main(int argc, char *argv[]) |
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{ |
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int ch; |
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char *dir; |
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✗✓ |
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if (pledge("stdio flock rpath cpath wpath", NULL) == -1) |
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err(1, "pledge"); |
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✗✓ |
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while ((ch = getopt(argc, argv, "")) != -1) { |
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switch (ch) { |
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default: |
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usage(); |
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} |
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} |
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argc -= optind; |
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argv += optind; |
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✗✓ |
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if (argc != 1) |
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usage(); |
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✗✓ |
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if ((dir = dirname(argv[0])) == NULL) |
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err(1, "%s", argv[0]); |
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puts(dir); |
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return 0; |
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} |
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extern char *__progname; |
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static void __dead |
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usage(void) |
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{ |
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(void)fprintf(stderr, "usage: %s pathname\n", __progname); |
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exit(1); |
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} |