hush/modutils/rmmod.c
Denys Vlasenko 0ef64bdb40 *: make GNU licensing statement forms more regular
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16 20:14:46 +02:00

54 lines
1.3 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini rmmod implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
* Copyright (C) 2008 Timo Teras <timo.teras@iki.fi>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
#include "modutils.h"
int rmmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int rmmod_main(int argc UNUSED_PARAM, char **argv)
{
int n;
unsigned flags = O_NONBLOCK | O_EXCL;
/* Parse command line. */
n = getopt32(argv, "wfas"); // -s ignored
argv += optind;
if (n & 1) // --wait
flags &= ~O_NONBLOCK;
if (n & 2) // --force
flags |= O_TRUNC;
if (n & 4) {
/* Unload _all_ unused modules via NULL delete_module() call */
if (bb_delete_module(NULL, flags) != 0 && errno != EFAULT)
bb_perror_msg_and_die("rmmod");
return EXIT_SUCCESS;
}
if (!*argv)
bb_show_usage();
n = ENABLE_FEATURE_2_4_MODULES && get_linux_version_code() < KERNEL_VERSION(2,6,0);
while (*argv) {
char modname[MODULE_NAME_LEN];
const char *bname;
bname = bb_basename(*argv++);
if (n)
safe_strncpy(modname, bname, MODULE_NAME_LEN);
else
filename2modname(bname, modname);
if (bb_delete_module(modname, flags))
bb_error_msg_and_die("can't unload '%s': %s",
modname, moderror(errno));
}
return EXIT_SUCCESS;
}