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-rw-r--r--modutils/rmmod.c87
1 files changed, 17 insertions, 70 deletions
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index 5129b34..cdc690a 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -3,98 +3,45 @@
* 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 tarball for details.
*/
#include "libbb.h"
-
-#ifdef __UCLIBC__
-extern int delete_module(const char *module, unsigned int flags);
-#else
-# include <sys/syscall.h>
-# define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags)
-#endif
-
-#if ENABLE_FEATURE_2_6_MODULES
-static void filename2modname(char *modname, const char *afterslash)
-{
- unsigned int i;
- int kr_chk = 1;
-
- if (ENABLE_FEATURE_2_4_MODULES
- && get_linux_version_code() <= KERNEL_VERSION(2,6,0))
- kr_chk = 0;
-
- /* Convert to underscores, stop at first . */
- for (i = 0; afterslash[i] && afterslash[i] != '.'; i++) {
- if (kr_chk && (afterslash[i] == '-'))
- modname[i] = '_';
- else
- modname[i] = afterslash[i];
- }
- modname[i] = '\0';
-}
-#else
-void filename2modname(char *modname, const char *afterslash);
-#endif
-
-// There really should be a header file for this...
-
-int query_module(const char *name, int which, void *buf,
- size_t bufsize, size_t *ret);
+#include "modutils.h"
int rmmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int rmmod_main(int argc, char **argv)
+int rmmod_main(int argc UNUSED_PARAM, char **argv)
{
- int n, ret = EXIT_SUCCESS;
+ int n;
unsigned int flags = O_NONBLOCK|O_EXCL;
-#define misc_buf bb_common_bufsiz1
-
/* Parse command line. */
- n = getopt32(argv, "wfa");
+ 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 */
- /* until the number of modules does not change */
- size_t nmod = 0; /* number of modules */
- size_t pnmod = -1; /* previous number of modules */
-
- while (nmod != pnmod) {
- if (delete_module(NULL, flags) != 0) {
- if (errno == EFAULT)
- return ret;
- bb_perror_msg_and_die("rmmod");
- }
- pnmod = nmod;
- // the 1 here is QM_MODULES.
- if (ENABLE_FEATURE_QUERY_MODULE_INTERFACE && query_module(NULL,
- 1, misc_buf, sizeof(misc_buf),
- &nmod))
- {
- bb_perror_msg_and_die("QM_MODULES");
- }
- }
+ if (bb_delete_module(NULL, flags) != 0 && errno != EFAULT)
+ bb_perror_msg_and_die("rmmod");
return EXIT_SUCCESS;
}
- if (optind == argc)
+ if (!*argv)
bb_show_usage();
- for (n = optind; n < argc; n++) {
- if (ENABLE_FEATURE_2_6_MODULES) {
- filename2modname(misc_buf, bb_basename(argv[n]));
- }
-
- if (delete_module(ENABLE_FEATURE_2_6_MODULES ? misc_buf : argv[n], flags)) {
- bb_simple_perror_msg(argv[n]);
- ret = EXIT_FAILURE;
- }
+ while (*argv) {
+ char modname[MODULE_NAME_LEN];
+ filename2modname(bb_basename(*argv++), modname);
+ if (bb_delete_module(modname, flags))
+ bb_error_msg_and_die("cannot unload '%s': %s",
+ modname, moderror(errno));
}
- return ret;
+ return EXIT_SUCCESS;
}