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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <locale.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string.h> 33 #include <unistd.h> 34 #include <libintl.h> 35 36 int 37 main(int argc, char **argv) 38 { 39 char *p; 40 char *string; 41 42 /* 43 * For better performance, defer the setlocale()/textdomain() 44 * calls until they get really required. 45 */ 46 #if !defined(TEXT_DOMAIN) 47 #define TEXT_DOMAIN "SYS_TEST" 48 #endif 49 if (argc == 1) { 50 (void) puts("."); 51 return (0); 52 } 53 if (strcmp(argv[1], "--") == 0) { 54 argv++; 55 argc--; 56 if (argc == 1) { 57 (void) puts("."); 58 return (0); 59 } 60 } 61 if (argc > 2) { 62 (void) setlocale(LC_ALL, ""); 63 (void) textdomain(TEXT_DOMAIN); 64 (void) fprintf(stderr, gettext("Usage: dirname [ path ]\n")); 65 return (1); 66 } 67 68 string = argv[1]; 69 70 if (*string == '\0') { 71 (void) puts("."); 72 return (0); 73 } 74 75 /* remove trailing slashes */ 76 p = string + strlen(string) - 1; 77 while (p >= string && *p == '/') 78 *p-- = '\0'; 79 80 if (*string == '\0') { 81 /* string contained only slashes */ 82 (void) puts("/"); 83 return (0); 84 } 85 86 /* remove non-slashes */ 87 while (p >= string && *p != '/') 88 *p-- = '\0'; 89 90 if (*string == '\0') { 91 /* string did not begin with a slash */ 92 (void) puts("."); 93 return (0); 94 } 95 96 /* remove slashes delimiting dirname and basename */ 97 while (p >= string && *p == '/') 98 *p-- = '\0'; 99 100 if (*string == '\0') { 101 /* no dirname part found */ 102 (void) puts("/"); 103 return (0); 104 } 105 /* now string points to dirname part */ 106 (void) puts(string); 107 return (0); 108 } 109