mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini rmmod implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <getopt.h>
|
|
#include <fcntl.h>
|
|
#include <sys/syscall.h>
|
|
#include "busybox.h"
|
|
|
|
extern int delete_module(const char * name);
|
|
|
|
|
|
extern int rmmod_main(int argc, char **argv)
|
|
{
|
|
int n, ret = EXIT_SUCCESS;
|
|
size_t nmod = 0; /* number of modules */
|
|
size_t pnmod = -1; /* previous number of modules */
|
|
void *buf; /* hold the module names which we ignore but must get */
|
|
size_t bufsize = 0;
|
|
unsigned int flags = O_NONBLOCK|O_EXCL;
|
|
|
|
/* Parse command line. */
|
|
while ((n = getopt(argc, argv, "a")) != EOF) {
|
|
switch (n) {
|
|
case 'w': // --wait
|
|
flags &= ~O_NONBLOCK;
|
|
break;
|
|
case 'f': // --force
|
|
flags |= O_TRUNC;
|
|
break;
|
|
case 'a':
|
|
/* Unload _all_ unused modules via NULL delete_module() call */
|
|
/* until the number of modules does not change */
|
|
buf = xmalloc(bufsize = 256);
|
|
while (nmod != pnmod) {
|
|
if (delete_module(NULL))
|
|
bb_perror_msg_and_die("rmmod");
|
|
pnmod = nmod;
|
|
/* 1 == QM_MODULES */
|
|
if (my_query_module(NULL, 1, &buf, &bufsize, &nmod)) {
|
|
bb_perror_msg_and_die("QM_MODULES");
|
|
}
|
|
}
|
|
#ifdef CONFIG_FEATURE_CLEAN_UP
|
|
free(buf);
|
|
#endif
|
|
return EXIT_SUCCESS;
|
|
default:
|
|
bb_show_usage();
|
|
}
|
|
}
|
|
|
|
if (optind == argc)
|
|
bb_show_usage();
|
|
|
|
for (n = optind; n < argc; n++) {
|
|
if (syscall(__NR_delete_module, argv[n], flags) < 0) {
|
|
bb_perror_msg("%s", argv[n]);
|
|
ret = EXIT_FAILURE;
|
|
}
|
|
}
|
|
|
|
return(ret);
|
|
}
|