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/basename/basename.c,v 1.15 2004/07/15 06:15:10 tjr Exp $ 34 * $DragonFly: src/usr.bin/basename/basename.c,v 1.11 2007/08/28 15:36:44 pavalos Exp $ 35 * 36 * @(#) Copyright (c) 1991, 1993, 1994 The Regents of the University of California. All rights reserved. 37 * @(#)basename.c 8.4 (Berkeley) 5/4/95 38 */ 39 40 #include <err.h> 41 #include <libgen.h> 42 #include <limits.h> 43 #include <locale.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 #include <wchar.h> 49 50 void stripsuffix(char *, const char *, size_t); 51 void usage(void); 52 53 int 54 main(int argc, char **argv) 55 { 56 char *p, *suffix; 57 size_t suffixlen; 58 int aflag, ch; 59 60 setlocale(LC_ALL, ""); 61 62 aflag = 0; 63 suffix = NULL; 64 suffixlen = 0; 65 66 while ((ch = getopt(argc, argv, "as:")) != -1) { 67 switch(ch) { 68 case 'a': 69 aflag = 1; 70 break; 71 case 's': 72 suffix = optarg; 73 break; 74 case '?': 75 default: 76 usage(); 77 } 78 } 79 argc -= optind; 80 argv += optind; 81 82 if (argc < 1) 83 usage(); 84 85 if (!*argv[0]) { 86 printf("\n"); 87 exit(0); 88 } 89 if ((p = basename(argv[0])) == NULL) 90 err(1, "%s", argv[0]); 91 if ((suffix == NULL && !aflag) && argc == 2) { 92 suffix = argv[1]; 93 argc--; 94 } 95 if (suffix != NULL) 96 suffixlen = strlen(suffix); 97 while (argc--) { 98 if ((p = basename(*argv)) == NULL) 99 err(1, "%s", argv[0]); 100 stripsuffix(p, suffix, suffixlen); 101 argv++; 102 printf("%s\n", p); 103 } 104 exit(0); 105 } 106 107 void 108 stripsuffix(char *p, const char *suffix, size_t suffixlen) 109 { 110 char *q; 111 #ifndef NO_WCHAR 112 char *r; 113 mbstate_t mbs; 114 size_t n; 115 #endif 116 117 if (suffixlen && (q = strchr(p, '\0') - suffixlen) > p && 118 strcmp(suffix, q) == 0) { 119 #ifndef NO_WCHAR 120 /* Ensure that the match occurred on a character boundary. */ 121 memset(&mbs, 0, sizeof(mbs)); 122 for (r = p; r < q; r += n) { 123 n = mbrlen(r, MB_LEN_MAX, &mbs); 124 if (n == (size_t)-1 || n == (size_t)-2) { 125 memset(&mbs, 0, sizeof(mbs)); 126 n = 1; 127 } 128 } 129 /* Chop off the suffix. */ 130 if (q == r) 131 #endif 132 *q = '\0'; 133 } 134 } 135 136 void 137 usage(void) 138 { 139 140 fprintf(stderr, 141 "usage: basename string [suffix]\n" 142 " basename [-a] [-s suffix] string [...]\n"); 143 exit(1); 144 } 145