freebsd-dev/usr.bin/dirname/dirname.c

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
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* Copyright (c) 1991, 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. Neither the name of the University nor the names of its contributors
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* 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[] =
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"@(#) Copyright (c) 1991, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static const char sccsid[] = "@(#)dirname.c 8.4 (Berkeley) 5/4/95";
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#endif /* not lint */
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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
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#include <capsicum_helpers.h>
#include <err.h>
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#include <libgen.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <unistd.h>
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void usage(void);
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int
main(int argc, char **argv)
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{
char *p;
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int ch;
if (caph_limit_stdio() < 0 || caph_enter() < 0)
err(1, "capsicum");
while ((ch = getopt(argc, argv, "")) != -1)
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switch(ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 1)
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usage();
while (argc--) {
if ((p = dirname(*argv)) == NULL)
err(1, "%s", *argv);
argv++;
(void)printf("%s\n", p);
}
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exit(0);
}
void
usage(void)
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{
(void)fprintf(stderr, "usage: dirname string [...]\n");
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exit(1);
}