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 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1991, 1993, 1994\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif 39 40 #if 0 41 #ifndef lint 42 static char sccsid[] = "@(#)basename.c 8.4 (Berkeley) 5/4/95"; 43 #endif /* not lint */ 44 #endif 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <err.h> 50 #include <libgen.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 56 void usage(void); 57 58 int 59 main(int argc, char **argv) 60 { 61 char *p, *q, *suffix; 62 size_t suffixlen; 63 int aflag, ch; 64 65 aflag = 0; 66 suffix = NULL; 67 suffixlen = 0; 68 69 while ((ch = getopt(argc, argv, "as:")) != -1) 70 switch(ch) { 71 case 'a': 72 aflag = 1; 73 break; 74 case 's': 75 suffix = optarg; 76 break; 77 case '?': 78 default: 79 usage(); 80 } 81 argc -= optind; 82 argv += optind; 83 84 if (argc < 1) 85 usage(); 86 87 if (!*argv[0]) { 88 printf("\n"); 89 exit(0); 90 } 91 if ((p = basename(argv[0])) == NULL) 92 err(1, "%s", argv[0]); 93 if ((suffix == NULL && !aflag) && argc == 2) { 94 suffix = argv[1]; 95 argc--; 96 } 97 if (suffix != NULL) 98 suffixlen = strlen(suffix); 99 while (argc--) { 100 if ((p = basename(*argv)) == NULL) 101 err(1, "%s", argv[0]); 102 if (suffixlen && (q = strchr(p, '\0') - suffixlen) > p && 103 strcmp(suffix, q) == 0) 104 *q = '\0'; 105 argv++; 106 (void)printf("%s\n", p); 107 } 108 exit(0); 109 } 110 111 void 112 usage(void) 113 { 114 115 (void)fprintf(stderr, 116 "usage: basename string [suffix]\n" 117 " basename [-a] [-s suffix] string [...]\n"); 118 exit(1); 119 } 120