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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/usr.bin/basename/basename.c,v 1.15 2004/07/15 06:15:10 tjr Exp $ 30 * $DragonFly: src/usr.bin/basename/basename.c,v 1.11 2007/08/28 15:36:44 pavalos Exp $ 31 * 32 * @(#) Copyright (c) 1991, 1993, 1994 The Regents of the University of California. All rights reserved. 33 * @(#)basename.c 8.4 (Berkeley) 5/4/95 34 */ 35 36 #include <err.h> 37 #include <libgen.h> 38 #include <limits.h> 39 #include <locale.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 #include <wchar.h> 45 46 void stripsuffix(char *, const char *, size_t); 47 void usage(void); 48 49 int 50 main(int argc, char **argv) 51 { 52 char *p, *suffix; 53 size_t suffixlen; 54 int aflag, ch; 55 56 setlocale(LC_ALL, ""); 57 58 aflag = 0; 59 suffix = NULL; 60 suffixlen = 0; 61 62 while ((ch = getopt(argc, argv, "as:")) != -1) { 63 switch(ch) { 64 case 'a': 65 aflag = 1; 66 break; 67 case 's': 68 suffix = optarg; 69 break; 70 case '?': 71 default: 72 usage(); 73 } 74 } 75 argc -= optind; 76 argv += optind; 77 78 if (argc < 1) 79 usage(); 80 81 if (!*argv[0]) { 82 printf("\n"); 83 exit(0); 84 } 85 if ((p = basename(argv[0])) == NULL) 86 err(1, "%s", argv[0]); 87 if ((suffix == NULL && !aflag) && argc == 2) { 88 suffix = argv[1]; 89 argc--; 90 } 91 if (suffix != NULL) 92 suffixlen = strlen(suffix); 93 while (argc--) { 94 if ((p = basename(*argv)) == NULL) 95 err(1, "%s", argv[0]); 96 stripsuffix(p, suffix, suffixlen); 97 argv++; 98 printf("%s\n", p); 99 } 100 exit(0); 101 } 102 103 void 104 stripsuffix(char *p, const char *suffix, size_t suffixlen) 105 { 106 char *q; 107 #ifndef NO_WCHAR 108 char *r; 109 mbstate_t mbs; 110 size_t n; 111 #endif 112 113 if (suffixlen && (q = strchr(p, '\0') - suffixlen) > p && 114 strcmp(suffix, q) == 0) { 115 #ifndef NO_WCHAR 116 /* Ensure that the match occurred on a character boundary. */ 117 memset(&mbs, 0, sizeof(mbs)); 118 for (r = p; r < q; r += n) { 119 n = mbrlen(r, MB_LEN_MAX, &mbs); 120 if (n == (size_t)-1 || n == (size_t)-2) { 121 memset(&mbs, 0, sizeof(mbs)); 122 n = 1; 123 } 124 } 125 /* Chop off the suffix. */ 126 if (q == r) 127 #endif 128 *q = '\0'; 129 } 130 } 131 132 void 133 usage(void) 134 { 135 136 fprintf(stderr, 137 "usage: basename string [suffix]\n" 138 " basename [-a] [-s suffix] string [...]\n"); 139 exit(1); 140 } 141