1 /* 2 * Copyright (c) 1987, 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 #ifdef HAVE_CONFIG_H 35 # include "config.h" 36 #endif 37 #if !defined(HAVE_GETOPT) || defined(WANT_GETOPT_LONG) || defined(BROKEN_GETOPT) 38 39 #if defined(LIBC_SCCS) && !defined(lint) 40 /* static char sccsid[] = "from: @(#)getopt.c 8.2 (Berkeley) 4/2/94"; */ 41 static char *rcsid = "$Id: getopt.c,v 1.3 1999/01/08 02:14:18 sjg Exp $"; 42 #endif /* LIBC_SCCS and not lint */ 43 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 48 49 #define BADCH (int)'?' 50 #define BADARG (int)':' 51 #define EMSG "" 52 53 int opterr = 1, /* if error message should be printed */ 54 optind = 1, /* index into parent argv vector */ 55 optopt = BADCH, /* character checked for validity */ 56 optreset; /* reset getopt */ 57 char *optarg; /* argument associated with option */ 58 59 /* 60 * getopt -- 61 * Parse argc/argv argument vector. 62 */ 63 int 64 getopt(nargc, nargv, ostr) 65 int nargc; 66 char * const *nargv; 67 const char *ostr; 68 { 69 extern char *__progname; 70 static char *place = EMSG; /* option letter processing */ 71 char *oli; /* option letter list index */ 72 73 #ifndef BSD4_4 74 if (!__progname) { 75 if (__progname = strrchr(nargv[0], '/')) 76 ++__progname; 77 else 78 __progname = nargv[0]; 79 } 80 #endif 81 82 if (optreset || !*place) { /* update scanning pointer */ 83 optreset = 0; 84 if (optind >= nargc || *(place = nargv[optind]) != '-') { 85 place = EMSG; 86 return (-1); 87 } 88 if (place[1] && *++place == '-' /* found "--" */ 89 && !place[1]) { /* and not "--foo" */ 90 ++optind; 91 place = EMSG; 92 return (-1); 93 } 94 } /* option letter okay? */ 95 if ((optopt = (int)*place++) == (int)':' || 96 !(oli = strchr(ostr, optopt))) { 97 /* 98 * if the user didn't specify '-' as an option, 99 * assume it means -1. 100 */ 101 if (optopt == (int)'-') 102 return (-1); 103 if (!*place) 104 ++optind; 105 if (opterr && *ostr != ':') 106 (void)fprintf(stderr, 107 "%s: illegal option -- %c\n", __progname, optopt); 108 return (BADCH); 109 } 110 if (*++oli != ':') { /* don't need argument */ 111 optarg = NULL; 112 if (!*place) 113 ++optind; 114 } 115 else { /* need an argument */ 116 if (*place) /* no white space */ 117 optarg = place; 118 else if (nargc <= ++optind) { /* no arg */ 119 place = EMSG; 120 if (*ostr == ':') 121 return (BADARG); 122 if (opterr) 123 (void)fprintf(stderr, 124 "%s: option requires an argument -- %c\n", 125 __progname, optopt); 126 return (BADCH); 127 } 128 else /* white space */ 129 optarg = nargv[optind]; 130 place = EMSG; 131 ++optind; 132 } 133 return (optopt); /* dump back option letter */ 134 } 135 #endif 136 #ifdef MAIN 137 #ifndef BSD4_4 138 char *__progname; 139 #endif 140 141 int 142 main(argc, argv) 143 int argc; 144 char *argv[]; 145 { 146 int c; 147 char *opts = argv[1]; 148 149 --argc; 150 ++argv; 151 152 while ((c = getopt(argc, argv, opts)) != EOF) { 153 switch (c) { 154 case '-': 155 if (optarg) 156 printf("--%s ", optarg); 157 break; 158 case '?': 159 exit(1); 160 break; 161 default: 162 if (optarg) 163 printf("-%c %s ", c, optarg); 164 else 165 printf("-%c ", c); 166 break; 167 } 168 } 169 170 if (optind < argc) { 171 printf("-- "); 172 for (; optind < argc; ++optind) { 173 printf("%s ", argv[optind]); 174 } 175 } 176 printf("\n"); 177 exit(0); 178 } 179 #endif 180