main.c revision 1.5 
1/*	$NetBSD: main.c,v 1.5 2009/05/19 22:09:59 jnemeth 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 1.5 2009/05/19 22:09:59 jnemeth 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 *,
53			    const char *));
54static void	parse_string_param(prop_dictionary_t, const char *,
55				   const char *);
56static void	usage(void) __dead;
57
58int
59main(int argc, char **argv)
60{
61	modctl_load_t cmdargs;
62	prop_dictionary_t props;
63	bool output_props = false;
64	char *propsstr;
65	int ch;
66	int flags;
67
68	flags = 0;
69	props = prop_dictionary_create();
70
71	while ((ch = getopt(argc, argv, "b:fi:ps:")) != -1) {
72		switch (ch) {
73		case 'b':
74			parse_param(props, optarg, parse_bool_param);
75			break;
76
77		case 'f':
78			flags |= MODCTL_LOAD_FORCE;
79			break;
80
81		case 'i':
82			parse_param(props, optarg, parse_int_param);
83			break;
84
85		case 'p':
86			output_props = true;
87			break;
88
89		case 's':
90			parse_param(props, optarg, parse_string_param);
91			break;
92
93		default:
94			usage();
95			/* NOTREACHED */
96		}
97	}
98
99	argc -= optind;
100	argv += optind;
101
102	propsstr = prop_dictionary_externalize(props);
103	if (propsstr == NULL)
104		errx(EXIT_FAILURE, "Failed to process properties");
105
106	if (output_props)
107		puts(propsstr);
108	else {
109		if (argc != 1)
110			usage();
111		cmdargs.ml_filename = argv[0];
112		cmdargs.ml_flags = flags;
113		cmdargs.ml_props = propsstr;
114		cmdargs.ml_propslen = strlen(propsstr);
115
116		if (modctl(MODCTL_LOAD, &cmdargs)) {
117			err(EXIT_FAILURE, NULL);
118		}
119	}
120
121	free(propsstr);
122	prop_object_release(props);
123
124	exit(EXIT_SUCCESS);
125}
126
127static void
128parse_bool_param(prop_dictionary_t props, const char *name,
129		 const char *value)
130{
131	bool boolvalue;
132
133	assert(name != NULL);
134	assert(value != NULL);
135
136	if (strcasecmp(value, "1") == 0 ||
137	    strcasecmp(value, "true") == 0 ||
138	    strcasecmp(value, "yes") == 0)
139		boolvalue = true;
140	else if (strcasecmp(value, "0") == 0 ||
141	    strcasecmp(value, "false") == 0 ||
142	    strcasecmp(value, "no") == 0)
143		boolvalue = false;
144	else
145		errx(EXIT_FAILURE, "Invalid boolean value `%s'", value);
146
147	prop_dictionary_set(props, name, prop_bool_create(boolvalue));
148}
149
150static void
151parse_int_param(prop_dictionary_t props, const char *name,
152		const char *value)
153{
154	int64_t intvalue;
155
156	assert(name != NULL);
157	assert(value != NULL);
158
159	if (dehumanize_number(value, &intvalue) != 0)
160		err(EXIT_FAILURE, "Invalid integer value `%s'", value);
161
162	prop_dictionary_set(props, name,
163	    prop_number_create_integer(intvalue));
164}
165
166static void
167parse_param(prop_dictionary_t props, const char *origstr,
168	    void (*fmt_handler)(prop_dictionary_t, const char *, const char *))
169{
170	char *name, *value;
171
172	name = strdup(origstr);
173
174	value = strchr(name, '=');
175	if (value == NULL) {
176		free(name);
177		errx(EXIT_FAILURE, "Invalid parameter `%s'", origstr);
178	}
179	*value++ = '\0';
180
181	fmt_handler(props, name, value);
182
183	free(name);
184}
185
186static void
187parse_string_param(prop_dictionary_t props, const char *name,
188		   const char *value)
189{
190
191	assert(name != NULL);
192	assert(value != NULL);
193
194	prop_dictionary_set(props, name, prop_string_create_cstring(value));
195}
196
197static void
198usage(void)
199{
200
201	(void)fprintf(stderr,
202	    "Usage: %s [-b var=boolean] [-f] [-i var=integer] "
203	    "[-s var=string]\n"
204	    "       {-p|<module_name>}\n",
205	    getprogname());
206	exit(EXIT_FAILURE);
207}
208