xref: /freebsd/usr.bin/dirname/dirname.c (revision cd1693d3f953314178bc9c1ad75283ed29dc26ba)
19b50d902SRodney W. Grimes /*-
29b50d902SRodney W. Grimes  * Copyright (c) 1991, 1993, 1994
39b50d902SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
49b50d902SRodney W. Grimes  *
59b50d902SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
69b50d902SRodney W. Grimes  * modification, are permitted provided that the following conditions
79b50d902SRodney W. Grimes  * are met:
89b50d902SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
99b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
109b50d902SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
119b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
129b50d902SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
139b50d902SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
149b50d902SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
159b50d902SRodney W. Grimes  *    without specific prior written permission.
169b50d902SRodney W. Grimes  *
179b50d902SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
189b50d902SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199b50d902SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
209b50d902SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
219b50d902SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
229b50d902SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
239b50d902SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
249b50d902SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
259b50d902SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
269b50d902SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
279b50d902SRodney W. Grimes  * SUCH DAMAGE.
289b50d902SRodney W. Grimes  */
299b50d902SRodney W. Grimes 
309b50d902SRodney W. Grimes #ifndef lint
31fa146c53SArchie Cobbs static const char copyright[] =
329b50d902SRodney W. Grimes "@(#) Copyright (c) 1991, 1993, 1994\n\
339b50d902SRodney W. Grimes 	The Regents of the University of California.  All rights reserved.\n";
349b50d902SRodney W. Grimes #endif /* not lint */
359b50d902SRodney W. Grimes 
369b50d902SRodney W. Grimes #ifndef lint
37fa146c53SArchie Cobbs static const char sccsid[] = "@(#)dirname.c	8.4 (Berkeley) 5/4/95";
389b50d902SRodney W. Grimes #endif /* not lint */
39e026a48cSDavid E. O'Brien #include <sys/cdefs.h>
40e026a48cSDavid E. O'Brien __FBSDID("$FreeBSD$");
419b50d902SRodney W. Grimes 
42*cd1693d3SConrad Meyer #include <capsicum_helpers.h>
430de750cfSDag-Erling Smørgrav #include <err.h>
449d40f64aSDag-Erling Smørgrav #include <libgen.h>
459b50d902SRodney W. Grimes #include <stdio.h>
46948a3f54SDima Dorfman #include <stdlib.h>
47df3f5d9dSPeter Wemm #include <unistd.h>
489b50d902SRodney W. Grimes 
49f1bb2cd2SWarner Losh void usage(void);
509b50d902SRodney W. Grimes 
519b50d902SRodney W. Grimes int
52c10b37bfSDavid Malone main(int argc, char **argv)
539b50d902SRodney W. Grimes {
540de750cfSDag-Erling Smørgrav 	char *p;
559b50d902SRodney W. Grimes 	int ch;
569b50d902SRodney W. Grimes 
57*cd1693d3SConrad Meyer 	if (caph_limit_stdio() < 0 || (cap_enter() < 0 && errno != ENOSYS))
58*cd1693d3SConrad Meyer 		err(1, "capsicum");
59*cd1693d3SConrad Meyer 
601c8af878SWarner Losh 	while ((ch = getopt(argc, argv, "")) != -1)
619b50d902SRodney W. Grimes 		switch(ch) {
629b50d902SRodney W. Grimes 		case '?':
639b50d902SRodney W. Grimes 		default:
649b50d902SRodney W. Grimes 			usage();
659b50d902SRodney W. Grimes 		}
669b50d902SRodney W. Grimes 	argc -= optind;
679b50d902SRodney W. Grimes 	argv += optind;
689b50d902SRodney W. Grimes 
6975d7ed1eSRobert Watson 	if (argc < 1)
709b50d902SRodney W. Grimes 		usage();
719b50d902SRodney W. Grimes 
7275d7ed1eSRobert Watson 	while (argc--) {
730de750cfSDag-Erling Smørgrav 		if ((p = dirname(*argv)) == NULL)
740de750cfSDag-Erling Smørgrav 			err(1, "%s", *argv);
7575d7ed1eSRobert Watson 		argv++;
760de750cfSDag-Erling Smørgrav 		(void)printf("%s\n", p);
7775d7ed1eSRobert Watson 	}
789b50d902SRodney W. Grimes 	exit(0);
799b50d902SRodney W. Grimes }
809b50d902SRodney W. Grimes 
819b50d902SRodney W. Grimes void
82c10b37bfSDavid Malone usage(void)
839b50d902SRodney W. Grimes {
849b50d902SRodney W. Grimes 
8575d7ed1eSRobert Watson 	(void)fprintf(stderr, "usage: dirname string [...]\n");
869b50d902SRodney W. Grimes 	exit(1);
879b50d902SRodney W. Grimes }
88