1 /* $NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
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 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $");
33
34 #include <sys/module.h>
35
36 #include <assert.h>
37 #include <errno.h>
38 #include <stdarg.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42
43 #include <prop/proplib.h>
44
45 static int load(const char *, ...);
46
47 /*
48 * A program that loads a module and returns the errno(2) from modctl(8).
49 */
50 int
main(int argc,char * argv[])51 main(int argc, char *argv[])
52 {
53 assert(argc == 3);
54
55 return load(argv[1], argv[2]);
56 }
57
58 static __printflike(1, 2) int
load(const char * fmt,...)59 load(const char *fmt, ...)
60 {
61 char filename[MAXPATHLEN], *propsstr, *shortname, *dot;
62 prop_dictionary_t props;
63 modctl_load_t ml;
64 int serrno, rv;
65 va_list ap;
66
67 props = prop_dictionary_create();
68 propsstr = prop_dictionary_externalize(props);
69 assert(propsstr != NULL);
70 prop_object_release(props);
71
72 va_start(ap, fmt);
73 (void)vsnprintf(filename, sizeof(filename), fmt, ap);
74 va_end(ap);
75
76 ml.ml_filename = filename;
77 ml.ml_flags = 0;
78 ml.ml_props = propsstr;
79 ml.ml_propslen = strlen(propsstr);
80
81 printf("Loading module %s\n", filename);
82 errno = serrno = 0;
83
84 rv = modctl(MODCTL_LOAD, &ml);
85
86 if (rv != 0)
87 serrno = errno;
88
89 shortname = strrchr(filename, '/');
90 if (shortname != NULL)
91 shortname++;
92 else
93 shortname = filename;
94 dot = strrchr(shortname, '.');
95 if (dot)
96 *dot = 0;
97 (void)modctl(MODCTL_UNLOAD, shortname);
98
99 free(propsstr);
100
101 return serrno;
102 }
103