main.c revision 1.3 
1/*	$NetBSD: main.c,v 1.3 2008/04/28 20:23:09 martin Exp $	*/
2
3/*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30#ifndef lint
31__RCSID("$NetBSD: main.c,v 1.3 2008/04/28 20:23:09 martin Exp $");
32#endif /* !lint */
33
34#include <sys/module.h>
35
36#include <assert.h>
37#include <stdbool.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
41#include <unistd.h>
42#include <err.h>
43
44#include <prop/proplib.h>
45
46int		main(int, char **);
47static void	parse_bool_param(prop_dictionary_t, const char *,
48		    const char *);
49static void	parse_int_param(prop_dictionary_t, const char *,
50		    const char *);
51static void	parse_param(prop_dictionary_t, const char *,
52		    void (*)(prop_dictionary_t, const char *, const char *));
53static void	parse_string_param(prop_dictionary_t, const char *,
54		    const char *);
55static void	usage(void) __dead;
56
57int
58main(int argc, char **argv)
59{
60	modctl_load_t cmdargs;
61	prop_dictionary_t props;
62	char *propsstr;
63	int ch;
64	int flags;
65
66	flags = 0;
67	props = prop_dictionary_create();
68
69	while ((ch = getopt(argc, argv, "b:fi:s:")) != -1) {
70		switch (ch) {
71		case 'b':
72			parse_param(props, optarg, parse_bool_param);
73			break;
74
75		case 'f':
76			flags |= MODCTL_LOAD_FORCE;
77			break;
78
79		case 'i':
80			parse_param(props, optarg, parse_int_param);
81			break;
82
83		case 's':
84			parse_param(props, optarg, parse_string_param);
85			break;
86
87		default:
88			usage();
89			/* NOTREACHED */
90		}
91	}
92
93	argc -= optind;
94	argv += optind;
95	if (argc != 1)
96		usage();
97
98	propsstr = prop_dictionary_externalize(props);
99	if (propsstr == NULL)
100		errx(EXIT_FAILURE, "Failed to process properties");
101
102	cmdargs.ml_filename = argv[0];
103	cmdargs.ml_flags = flags;
104	cmdargs.ml_props = propsstr;
105	cmdargs.ml_propslen = strlen(propsstr);
106
107	if (modctl(MODCTL_LOAD, &cmdargs)) {
108		err(EXIT_FAILURE, NULL);
109	}
110
111	free(propsstr);
112	prop_object_release(props);
113
114	exit(EXIT_SUCCESS);
115}
116
117static
118void
119parse_bool_param(prop_dictionary_t props, const char *name,
120    const char *value)
121{
122	bool boolvalue;
123
124	assert(name != NULL);
125	assert(value != NULL);
126
127	if (strcasecmp(value, "1") == 0 ||
128	    strcasecmp(value, "true") == 0 ||
129	    strcasecmp(value, "yes") == 0)
130		boolvalue = true;
131	else if (strcasecmp(value, "0") == 0 ||
132	    strcasecmp(value, "false") == 0 ||
133	    strcasecmp(value, "no") == 0)
134		boolvalue = false;
135	else
136		errx(EXIT_FAILURE, "Invalid boolean value `%s'", value);
137
138	prop_dictionary_set(props, name, prop_bool_create(boolvalue));
139}
140
141static
142void
143parse_int_param(prop_dictionary_t props, const char *name,
144    const char *value)
145{
146	int64_t intvalue;
147
148	assert(name != NULL);
149	assert(value != NULL);
150
151	if (dehumanize_number(value, &intvalue) != 0)
152		err(EXIT_FAILURE, "Invalid integer value `%s'", value);
153
154	prop_dictionary_set(props, name,
155	    prop_number_create_integer(intvalue));
156}
157
158static
159void
160parse_param(prop_dictionary_t props, const char *origstr,
161    void (*fmt_handler)(prop_dictionary_t, const char *, const char *))
162{
163	char *name, *value;
164
165	name = strdup(origstr);
166
167	value = strchr(name, '=');
168	if (value == NULL) {
169		free(name);
170		errx(EXIT_FAILURE, "Invalid parameter `%s'", origstr);
171	}
172	*value++ = '\0';
173
174	fmt_handler(props, name, value);
175
176	free(name);
177}
178
179static
180void
181parse_string_param(prop_dictionary_t props, const char *name,
182    const char *value)
183{
184
185	assert(name != NULL);
186	assert(value != NULL);
187
188	prop_dictionary_set(props, name, prop_string_create_cstring(value));
189}
190
191static void
192usage(void)
193{
194
195	(void)fprintf(stderr,
196	    "Usage: %s [-b var=boolean] [-f] [-i var=integer] "
197	    "[-s var=string]\n"
198	    "       <module_name>\n",
199	    getprogname());
200	exit(EXIT_FAILURE);
201}
202