GC !__DragonFly__ section.
[dragonfly.git] / sbin / kldunload / kldunload.c
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1/*-
2 * Copyright (c) 1997 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
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25 *
26 * $FreeBSD: src/sbin/kldunload/kldunload.c,v 1.10 1999/09/08 05:46:47 bde Exp $
8af0d623 27 * $DragonFly: src/sbin/kldunload/kldunload.c,v 1.3 2004/02/04 17:40:00 joerg Exp $
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28 */
29
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30#include <err.h>
31#include <stdio.h>
32#include <stdlib.h>
33#include <unistd.h>
34#include <sys/param.h>
35#include <sys/linker.h>
36
37static void
38usage(void)
39{
40 fprintf(stderr, "usage: kldunload [-v] -i id\n");
41 fprintf(stderr, " kldunload [-v] [-n] name\n");
42 exit(1);
43}
44
45int
46main(int argc, char** argv)
47{
48 int c;
49 int verbose = 0;
50 int fileid = 0;
51 char* filename = 0;
52
53 while ((c = getopt(argc, argv, "i:n:v")) != -1)
54 switch (c) {
55 case 'i':
56 fileid = atoi(optarg);
57 if (!fileid)
58 errx(1, "Invalid ID %s", optarg);
59 break;
60 case 'n':
61 filename = optarg;
62 break;
63 case 'v':
64 verbose = 1;
65 break;
66 default:
67 usage();
68 }
69 argc -= optind;
70 argv += optind;
71
72 if (!fileid && !filename && (argc == 1)) {
73 filename = *argv;
74 argc--;
75 }
76
8af0d623 77 if (argc != 0 || (fileid && filename))
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78 usage();
79
80 if (fileid == 0 && filename == 0)
81 usage();
82
83 if (filename) {
84 if ((fileid = kldfind(filename)) < 0)
85 err(1, "can't find file %s", filename);
86 }
87
88 if (verbose) {
89 struct kld_file_stat stat;
90 stat.version = sizeof stat;
91 if (kldstat(fileid, &stat) < 0)
92 err(1, "can't stat file");
93 printf("Unloading %s, id=%d\n", stat.name, fileid);
94 }
95
96 if (kldunload(fileid) < 0)
97 err(1, "can't unload file");
98
99 return 0;
100}