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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 }