1 /* $NetBSD: h_getopt.c,v 1.1 2011/01/01 23:56:49 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <stdio.h> 33 #include <string.h> 34 #include <stdlib.h> 35 #include <unistd.h> 36 #include <err.h> 37 #ifdef __FreeBSD__ 38 #include <libutil.h> 39 #endif 40 41 #define WS "\t\n " 42 #define debug 0 43 44 int 45 main(int argc, char *argv[]) 46 { 47 size_t len, lineno = 0; 48 char *line, *ptr, *optstring = NULL, *result = NULL; 49 char buf[1024]; 50 char *args[100]; 51 char arg[100]; 52 int nargs = -1; 53 int c; 54 55 while ((line = fparseln(stdin, &len, &lineno, NULL, 0)) != NULL) { 56 if (strncmp(line, "load:", 5) == 0) { 57 if (optstring) 58 free(optstring); 59 optstring = strtok(&line[6], WS); 60 if (optstring == NULL) 61 errx(1, "missing optstring at line %ld", 62 (unsigned long)lineno); 63 optstring = strdup(optstring); 64 if (debug) 65 fprintf(stderr, "optstring = %s\n", optstring); 66 } else if (strncmp(line, "args:", 5) == 0) { 67 for (; nargs >= 0; nargs--) { 68 if (args[nargs] != NULL) 69 free(args[nargs]); 70 } 71 args[nargs = 0] = strtok(&line[6], WS); 72 if (args[nargs] == NULL) 73 errx(1, "missing args at line %ld", 74 (unsigned long)lineno); 75 76 args[nargs] = strdup(args[nargs]); 77 while ((args[++nargs] = strtok(NULL, WS)) != NULL) 78 args[nargs] = strdup(args[nargs]); 79 if (debug) { 80 int i = 0; 81 for (i = 0; i < nargs; i++) 82 fprintf(stderr, "argv[%d] = %s\n", i, 83 args[i]); 84 } 85 } else if (strncmp(line, "result:", 7) == 0) { 86 buf[0] = '\0'; 87 optind = optreset = 1; 88 if (result) 89 free(result); 90 result = strtok(&line[8], WS); 91 if (result == NULL) 92 errx(1, "missing result at line %ld", 93 (unsigned long)lineno); 94 result = strdup(result); 95 if (nargs == -1) 96 errx(1, "result: without args:"); 97 if (debug) 98 fprintf(stderr, "result = %s\n", result); 99 while ((c = getopt(nargs, args, optstring)) != -1) { 100 if (c == ':') 101 err(1, "`:' found as argument char"); 102 if ((ptr = strchr(optstring, c)) == NULL) { 103 snprintf(arg, sizeof(arg), "!%c,", c); 104 strcat(buf, arg); 105 continue; 106 } 107 if (ptr[1] != ':') 108 snprintf(arg, sizeof(arg), "%c,", c); 109 else 110 snprintf(arg, sizeof(arg), "%c=%s,", 111 c, optarg); 112 strcat(buf, arg); 113 } 114 len = strlen(buf); 115 if (len > 0) { 116 buf[len - 1] = '|'; 117 buf[len] = '\0'; 118 } else { 119 buf[0] = '|'; 120 buf[1] = '\0'; 121 } 122 snprintf(arg, sizeof(arg), "%d", nargs - optind); 123 strcat(buf, arg); 124 if (strcmp(buf, result) != 0) 125 errx(1, "`%s' != `%s'", buf, result); 126 } 127 free(line); 128 } 129 return 0; 130 } 131