1 /* vi: set sw=4 ts=4: */
3 * Mini rmmod implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #include <sys/syscall.h>
32 extern int rmmod_main(int argc, char **argv)
34 int n, ret = EXIT_SUCCESS;
35 size_t nmod = 0; /* number of modules */
36 size_t pnmod = -1; /* previous number of modules */
37 unsigned int flags = O_NONBLOCK|O_EXCL;
38 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
39 void *buf; /* hold the module names which we ignore but must get */
43 /* Parse command line. */
44 while ((n = getopt(argc, argv, "a")) != EOF) {
53 /* Unload _all_ unused modules via NULL delete_module() call */
54 /* until the number of modules does not change */
55 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
56 buf = xmalloc(bufsize = 256);
58 while (nmod != pnmod) {
59 if (syscall(__NR_delete_module, NULL, flags) < 0) {
62 bb_perror_msg_and_die("rmmod");
65 #ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
67 if (my_query_module(NULL, 1, &buf, &bufsize, &nmod)) {
68 bb_perror_msg_and_die("QM_MODULES");
72 #if defined CONFIG_FEATURE_CLEAN_UP && CONFIG_FEATURE_QUERY_MODULE_INTERFACE
84 for (n = optind; n < argc; n++) {
85 if (syscall(__NR_delete_module, argv[n], flags) < 0) {
86 bb_perror_msg("%s", argv[n]);