1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/usr.bin/dirname/dirname.c,v 1.5.6.2 2001/08/02 01:49:44 obrien Exp $ 34 * $DragonFly: src/usr.bin/dirname/dirname.c,v 1.5 2004/08/25 01:40:23 dillon Exp $ 35 * 36 * @(#) Copyright (c) 1991, 1993, 1994 The Regents of the University of California. All rights reserved. 37 * @(#)dirname.c 8.4 (Berkeley) 5/4/95 38 */ 39 40 #include <err.h> 41 #include <libgen.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <unistd.h> 45 46 static void usage(void); 47 48 int 49 main(int argc, char **argv) 50 { 51 char *p; 52 int ch; 53 54 /* 55 * No options supported 56 */ 57 while ((ch = getopt(argc, argv, "")) != -1) { 58 switch(ch) { 59 default: 60 usage(); 61 } 62 } 63 argc -= optind; 64 argv += optind; 65 66 if (argc != 1) 67 usage(); 68 69 if ((p = dirname(argv[0])) == NULL) 70 err(1, "%s", argv[0]); 71 printf("%s\n", p); 72 exit(0); 73 } 74 75 static void 76 usage(void) 77 { 78 fprintf(stderr, "usage: dirname path\n"); 79 exit(1); 80 } 81