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No real need for my_query_module() and this eliminates some type-punned

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pointer warning on certain gcc versions (and saves 38 bytes).
This commit is contained in:
Rob Landley 2006-08-28 19:40:08 +00:00
parent 82ac9ecfe5
commit abfe107f78
5 changed files with 37 additions and 79 deletions
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19
modutils/lsmod.c
View file

@ -15,7 +15,7 @@
#ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
static inline void check_tainted(void) { printf("\n"); }
static void check_tainted(void) { printf("\n"); }
#else
#define TAINT_FILENAME "/proc/sys/kernel/tainted"
#define TAINT_PROPRIETORY_MODULE (1<<0)
@ -80,13 +80,15 @@ int lsmod_main(int argc, char **argv)
char *module_names, *mn, *deps, *dn;
size_t bufsize, depsize, nmod, count, i, j;
module_names = xmalloc(bufsize = 256);
if (my_query_module(NULL, QM_MODULES, &module_names, &bufsize, &nmod)) {
bb_perror_msg_and_die("QM_MODULES");
module_names = deps = NULL;
bufsize = depsize = 0;
while(query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) {
if (errno != ENOSPC) bb_perror_msg_and_die("QM_MODULES");
module_names = xmalloc(bufsize = nmod);
}
deps = xmalloc(depsize = 256);
printf("Module Size Used by");
printf("Module\t\t\tSize Used by");
check_tainted();
for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
@ -98,12 +100,13 @@ int lsmod_main(int argc, char **argv)
/* else choke */
bb_perror_msg_and_die("module %s: QM_INFO", mn);
}
if (my_query_module(mn, QM_REFS, &deps, &depsize, &count)) {
while (query_module(mn, QM_REFS, deps, depsize, &count)) {
if (errno == ENOENT) {
/* The module was removed out from underneath us. */
continue;
}
bb_perror_msg_and_die("module %s: QM_REFS", mn);
} else if (errno != ENOSPC)
bb_perror_msg_and_die("module %s: QM_REFS", mn);
deps = xrealloc(deps, count);
}
printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
if (info.flags & NEW_MOD_DELETED)

63
modutils/rmmod.c
View file

@ -8,28 +8,17 @@
*/
#include "busybox.h"
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <fcntl.h>
#include <string.h>
#include <sys/utsname.h>
#include <sys/syscall.h>
#ifdef CONFIG_FEATURE_2_6_MODULES
static inline void filename2modname(char *modname, const char *afterslash)
{
unsigned int i;
#if ENABLE_FEATURE_2_4_MODULES
int kr_chk = 1;
if (get_linux_version_code() <= KERNEL_VERSION(2,6,0))
kr_chk = 0;
#else
#define kr_chk 1
#endif
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++) {
@ -40,17 +29,19 @@ static inline void filename2modname(char *modname, const char *afterslash)
}
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);
int rmmod_main(int argc, char **argv)
{
int n, ret = EXIT_SUCCESS;
unsigned int flags = O_NONBLOCK|O_EXCL;
#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
/* bb_common_bufsiz1 hold the module names which we ignore
but must get */
size_t bufsize = sizeof(bb_common_bufsiz1);
#endif
/* Parse command line. */
n = bb_getopt_ulflags(argc, argv, "wfa");
@ -71,12 +62,13 @@ int rmmod_main(int argc, char **argv)
bb_perror_msg_and_die("rmmod");
}
pnmod = nmod;
#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
/* 1 == QM_MODULES */
if (my_query_module(NULL, 1, &bb_common_bufsiz1, &bufsize, &nmod)) {
// the 1 here is QM_MODULES.
if (ENABLE_FEATURE_QUERY_MODULE_INTERFACE && query_module(NULL,
1, bb_common_bufsiz1, sizeof(bb_common_bufsiz1),
&nmod))
{
bb_perror_msg_and_die("QM_MODULES");
}
#endif
}
return EXIT_SUCCESS;
}
@ -85,21 +77,16 @@ int rmmod_main(int argc, char **argv)
bb_show_usage();
for (n = optind; n < argc; n++) {
#ifdef CONFIG_FEATURE_2_6_MODULES
const char *afterslash;
char *module_name;
if (ENABLE_FEATURE_2_6_MODULES) {
const char *afterslash;
afterslash = strrchr(argv[n], '/');
if (!afterslash)
afterslash = argv[n];
else
afterslash++;
module_name = alloca(strlen(afterslash) + 1);
filename2modname(module_name, afterslash);
#else
#define module_name argv[n]
#endif
if (syscall(__NR_delete_module, module_name, flags) != 0) {
afterslash = strrchr(argv[n], '/');
if (!afterslash) afterslash = argv[n];
else afterslash++;
filename2modname(bb_common_bufsiz1, afterslash);
}
if (syscall(__NR_delete_module, ENABLE_FEATURE_2_6_MODULES ? bb_common_bufsiz1 : argv[n], flags)) {
bb_perror_msg("%s", argv[n]);
ret = EXIT_FAILURE;
}