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      1 /*	$NetBSD: dirname.c,v 1.12 2011/09/16 15:39:25 joerg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 __COPYRIGHT("@(#) Copyright (c) 1991, 1993, 1994\
     35  The Regents of the University of California.  All rights reserved.");
     36 #endif /* not lint */
     37 
     38 #ifndef lint
     39 #if 0
     40 static char sccsid[] = "@(#)dirname.c	8.4 (Berkeley) 5/4/95";
     41 #endif
     42 __RCSID("$NetBSD: dirname.c,v 1.12 2011/09/16 15:39:25 joerg Exp $");
     43 #endif /* not lint */
     44 
     45 #include <err.h>
     46 #include <libgen.h>
     47 #include <locale.h>
     48 #include <stdio.h>
     49 #include <stdlib.h>
     50 #include <unistd.h>
     51 
     52 __dead static void usage(void);
     53 
     54 int
     55 main(int argc, char **argv)
     56 {
     57 	char *p;
     58 	int ch;
     59 
     60 	setlocale(LC_ALL, "");
     61 
     62 	while ((ch = getopt(argc, argv, "")) != -1)
     63 		switch (ch) {
     64 		case '?':
     65 		default:
     66 			usage();
     67 		}
     68 	argc -= optind;
     69 	argv += optind;
     70 
     71 	if (argc != 1)
     72 		usage();
     73 
     74 	if ((p = dirname(*argv)) == NULL)
     75 		err(1, "%s", *argv);
     76 	(void)printf("%s\n", p);
     77 	exit(0);
     78 }
     79 
     80 static void
     81 usage(void)
     82 {
     83 
     84 	(void)fprintf(stderr, "usage: dirname path\n");
     85 	exit(1);
     86 }
     87