1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <locale.h> 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <string.h> 31 #include <unistd.h> 32 #include <libintl.h> 33 34 int 35 main(int argc, char **argv) 36 { 37 char *p; 38 char *string; 39 40 /* 41 * For better performance, defer the setlocale()/textdomain() 42 * calls until they get really required. 43 */ 44 #if !defined(TEXT_DOMAIN) 45 #define TEXT_DOMAIN "SYS_TEST" 46 #endif 47 if (argc == 1) { 48 (void) puts("."); 49 return (0); 50 } 51 if (strcmp(argv[1], "--") == 0) { 52 argv++; 53 argc--; 54 if (argc == 1) { 55 (void) puts("."); 56 return (0); 57 } 58 } 59 if (argc > 2) { 60 (void) setlocale(LC_ALL, ""); 61 (void) textdomain(TEXT_DOMAIN); 62 (void) fprintf(stderr, gettext("Usage: dirname [ path ]\n")); 63 return (1); 64 } 65 66 string = argv[1]; 67 68 if (*string == '\0') { 69 (void) puts("."); 70 return (0); 71 } 72 73 /* remove trailing slashes */ 74 p = string + strlen(string) - 1; 75 while (p >= string && *p == '/') 76 *p-- = '\0'; 77 78 if (*string == '\0') { 79 /* string contained only slashes */ 80 (void) puts("/"); 81 return (0); 82 } 83 84 /* remove non-slashes */ 85 while (p >= string && *p != '/') 86 *p-- = '\0'; 87 88 if (*string == '\0') { 89 /* string did not begin with a slash */ 90 (void) puts("."); 91 return (0); 92 } 93 94 /* remove slashes delimiting dirname and basename */ 95 while (p >= string && *p == '/') 96 *p-- = '\0'; 97 98 if (*string == '\0') { 99 /* no dirname part found */ 100 (void) puts("/"); 101 return (0); 102 } 103 /* now string points to dirname part */ 104 (void) puts(string); 105 return (0); 106 } 107