/*
* Mini lsmod implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
- * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
* Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
* (which lack the query_module() interface).
*
- * 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <stddef.h>
-#include <errno.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <ctype.h>
-#include <assert.h>
-#include <getopt.h>
-#include <sys/utsname.h>
-#include <sys/file.h>
-#include "busybox.h"
-
-
-#ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
-static inline void check_tainted(void) { printf("\n"); }
+#include "libbb.h"
+
+
+#if !ENABLE_FEATURE_CHECK_TAINTED_MODULE
+static void check_tainted(void) { bb_putchar('\n'); }
#else
#define TAINT_FILENAME "/proc/sys/kernel/tainted"
#define TAINT_PROPRIETORY_MODULE (1<<0)
FILE *f;
tainted = 0;
- if ((f = fopen(TAINT_FILENAME, "r"))) {
+ f = fopen(TAINT_FILENAME, "r");
+ if (f) {
fscanf(f, "%d", &tainted);
fclose(f);
}
- if (f && tainted) {
+ if (tainted) {
printf(" Tainted: %c%c%c\n",
tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
- }
- else {
+ } else {
printf(" Not tainted\n");
}
- printf("\n");
}
#endif
-#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
+#if ENABLE_FEATURE_QUERY_MODULE_INTERFACE
struct module_info
{
int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
+enum {
/* Values for query_module's which. */
-static const int QM_MODULES = 1;
-static const int QM_DEPS = 2;
-static const int QM_REFS = 3;
-static const int QM_SYMBOLS = 4;
-static const int QM_INFO = 5;
+ QM_MODULES = 1,
+ QM_DEPS = 2,
+ QM_REFS = 3,
+ QM_SYMBOLS = 4,
+ QM_INFO = 5,
/* Bits of module.flags. */
-static const int NEW_MOD_RUNNING = 1;
-static const int NEW_MOD_DELETED = 2;
-static const int NEW_MOD_AUTOCLEAN = 4;
-static const int NEW_MOD_VISITED = 8;
-static const int NEW_MOD_USED_ONCE = 16;
-static const int NEW_MOD_INITIALIZING = 64;
-
-extern int lsmod_main(int argc, char **argv)
+ NEW_MOD_RUNNING = 1,
+ NEW_MOD_DELETED = 2,
+ NEW_MOD_AUTOCLEAN = 4,
+ NEW_MOD_VISITED = 8,
+ NEW_MOD_USED_ONCE = 16,
+ NEW_MOD_INITIALIZING = 64
+};
+
+int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int lsmod_main(int argc, char **argv)
{
struct module_info info;
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, (void **)&module_names, &bufsize,
- &nmod)) {
- 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++) {
continue;
}
/* else choke */
- perror_msg_and_die("module %s: QM_INFO", mn);
+ bb_perror_msg_and_die("module %s: QM_INFO", mn);
}
- if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
+ while (query_module(mn, QM_REFS, deps, depsize, &count)) {
if (errno == ENOENT) {
/* The module was removed out from underneath us. */
continue;
- }
- 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)
}
if (count) printf("]");
- printf("\n");
+ bb_putchar('\n');
}
-#ifdef CONFIG_FEATURE_CLEAN_UP
+#if ENABLE_FEATURE_CLEAN_UP
free(module_names);
#endif
- return( 0);
+ return 0;
}
#else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
-extern int lsmod_main(int argc, char **argv)
+int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int lsmod_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
{
+ FILE *file = xfopen("/proc/modules", "r");
+
printf("Module Size Used by");
check_tainted();
-
- if(print_file_by_name("/proc/modules") == FALSE)
- return 1;
- return 0;
+#if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
+ {
+ char *line;
+ while ((line = xmalloc_fgets(file)) != NULL) {
+ char *tok;
+
+ tok = strtok(line, " \t");
+ printf("%-19s", tok);
+ tok = strtok(NULL, " \t\n");
+ printf(" %8s", tok);
+ tok = strtok(NULL, " \t\n");
+ /* Null if no module unloading support. */
+ if (tok) {
+ printf(" %s", tok);
+ tok = strtok(NULL, "\n");
+ if (!tok)
+ tok = (char*)"";
+ /* New-style has commas, or -. If so,
+ truncate (other fields might follow). */
+ else if (strchr(tok, ',')) {
+ tok = strtok(tok, "\t ");
+ /* Strip trailing comma. */
+ if (tok[strlen(tok)-1] == ',')
+ tok[strlen(tok)-1] = '\0';
+ } else if (tok[0] == '-'
+ && (tok[1] == '\0' || isspace(tok[1]))
+ ) {
+ tok = (char*)"";
+ }
+ printf(" %s", tok);
+ }
+ bb_putchar('\n');
+ free(line);
+ }
+ fclose(file);
+ }
+#else
+ xprint_and_close_file(file);
+#endif /* CONFIG_FEATURE_2_6_MODULES */
+ return EXIT_SUCCESS;
}
#endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
projects / oweals / busybox.git / blobdiff