blob: a73d789f20c3e57efe5392c3fd1d17408ecd913a [file] [log] [blame]
Erik Andersene49d5ec2000-02-08 19:58:47 +00001/* vi: set sw=4 ts=4: */
Erik Andersen3d7e3411999-12-16 23:04:20 +00002/*
3 * Mini rmmod implementation for busybox
4 *
Erik Andersen61677fe2000-04-13 01:18:56 +00005 * Copyright (C) 1999,2000 by Lineo, inc.
Erik Andersen3d7e3411999-12-16 23:04:20 +00006 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include "internal.h"
25#include <stdio.h>
26#include <errno.h>
27#include <unistd.h>
Erik Andersen1d1d9502000-04-21 01:26:49 +000028#define __LIBRARY__
29#include <asm/unistd.h>
30/* #include <sys/syscall.h> */
Erik Andersen3d7e3411999-12-16 23:04:20 +000031
32
33
34/* And the system call of the day is... */
Erik Andersen6da0ae81999-12-17 01:08:27 +000035_syscall1(int, delete_module, const char *, name)
Erik Andersen3d7e3411999-12-16 23:04:20 +000036
37
38static const char rmmod_usage[] =
Erik Andersen7ab9c7e2000-05-12 19:41:47 +000039 "rmmod [OPTION]... [MODULE]...\n"
40#ifndef BB_FEATURE_TRIVIAL_HELP
41 "\nUnloads the specified kernel modules from the kernel.\n\n"
42 "Options:\n"
43 "\t-a\tTry to remove all unused kernel modules.\n"
44#endif
45 ;
Erik Andersen3d7e3411999-12-16 23:04:20 +000046
47
48
49extern int rmmod_main(int argc, char **argv)
50{
Erik Andersene49d5ec2000-02-08 19:58:47 +000051 if (argc <= 1) {
Erik Andersen3d7e3411999-12-16 23:04:20 +000052 usage(rmmod_usage);
Erik Andersen3d7e3411999-12-16 23:04:20 +000053 }
Erik Andersen3d7e3411999-12-16 23:04:20 +000054
Erik Andersene49d5ec2000-02-08 19:58:47 +000055 /* Parse any options */
56 while (--argc > 0 && **(++argv) == '-') {
57 while (*(++(*argv))) {
58 switch (**argv) {
59 case 'a':
60 /* Unload _all_ unused modules via NULL delete_module() call */
61 if (delete_module(NULL)) {
62 perror("rmmod");
63 exit(FALSE);
64 }
65 exit(TRUE);
66 default:
67 usage(rmmod_usage);
68 }
69 }
Erik Andersen3d7e3411999-12-16 23:04:20 +000070 }
Erik Andersene49d5ec2000-02-08 19:58:47 +000071
72 while (argc-- > 0) {
73 if (delete_module(*argv) < 0) {
74 perror(*argv);
75 }
76 argv++;
77 }
Eric Andersenb6106152000-06-19 17:25:40 +000078 return(TRUE);
Erik Andersen3d7e3411999-12-16 23:04:20 +000079}