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
45static int load(const char *, ...);
46
47/*
48 * A program that loads a module and returns the errno(2) from modctl(8).
49 */
50int
51main(int argc, char *argv[])
52{
53	assert(argc == 3);
54
55	return load(argv[1], argv[2]);
56}
57
58static __printflike(1, 2) int
59load(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