xref: /openbsd/usr.bin/dirname/dirname.c (revision f2dfb0a4)
1 /*	$OpenBSD: dirname.c,v 1.3 1997/08/17 21:32:46 millert Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
5  * 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Todd C. Miller.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
22  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
23  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
24  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
30  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef lint
34 static char rcsid[] = "$OpenBSD: dirname.c,v 1.3 1997/08/17 21:32:46 millert Exp $";
35 #endif /* not lint */
36 
37 #include <libgen.h>
38 #include <locale.h>
39 #include <stdio.h>
40 
41 int
42 main(argc, argv)
43 	int argc;
44 	char **argv;
45 {
46 	char *dir;
47 	extern char *__progname;
48 
49 	setlocale(LC_ALL, "");
50 
51 	if (argc != 2) {
52 		(void)fprintf(stderr, "Usage: %s dirname\n", __progname);
53 		exit(1);
54 	}
55 
56 	if ((dir = dirname(argv[1])) == NULL)
57 		err(1, NULL);
58 	puts(dir);
59 	exit(0);
60 }
61