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
44int
45main(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