/*
* Mini lsmod implementation for busybox
*
- * Copyright (C) 1999,2000,2001 by Lineo, inc.
- *
Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
+ *
Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
*
* Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
* Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <stddef.h>
#include <errno.h>
#include <unistd.h>
#include "busybox.h"
+#ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
+static inline void check_tainted(void) { printf("\n"); }
+#else
+#define TAINT_FILENAME "/proc/sys/kernel/tainted"
+#define TAINT_PROPRIETORY_MODULE (1<<0)
+#define TAINT_FORCED_MODULE (1<<1)
+#define TAINT_UNSAFE_SMP (1<<2)
-#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
+static void check_tainted(void)
+{
+ int tainted;
+ FILE *f;
+
+ tainted = 0;
+ if ((f = fopen(TAINT_FILENAME, "r"))) {
+ fscanf(f, "%d", &tainted);
+ fclose(f);
+ }
+ if (f && tainted) {
+ printf(" Tainted: %c%c%c\n",
+ tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
+ tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
+ tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
+ }
+ else {
+ printf(" Not tainted\n");
+ }
+}
+#endif
+
+#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
struct module_info
{
};
-int query_module(const char *name, int which, void *buf, size_t bufsize,
- size_t *ret);
+int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
/* Values for query_module's which. */
static const int QM_MODULES = 1;
static const int NEW_MOD_USED_ONCE = 16;
static const int NEW_MOD_INITIALIZING = 64;
+static int my_query_module(const char *name, int which, void **buf,
+ size_t *bufsize, size_t *ret)
+{
+ int my_ret;
+
+ my_ret = query_module(name, which, *buf, *bufsize, ret);
+
+ if (my_ret == -1 && errno == ENOSPC) {
+ *buf = xrealloc(*buf, *ret);
+ *bufsize = *ret;
+
+ my_ret = query_module(name, which, *buf, *bufsize, ret);
+ }
+
+ return my_ret;
+}
extern int lsmod_main(int argc, char **argv)
{
struct module_info info;
char *module_names, *mn, *deps, *dn;
- size_t bufsize, nmod, count, i, j;
+ size_t bufsize, depsize, nmod, count, i, j;
module_names = xmalloc(bufsize = 256);
- deps = xmalloc(bufsize);
- if (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) {
+ if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
+ &nmod)) {
perror_msg_and_die("QM_MODULES");
}
- printf("Module Size Used by\n");
+ deps = xmalloc(depsize = 256);
+ printf("Module Size Used by");
+ check_tainted();
+
for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
if (errno == ENOENT) {
/* else choke */
perror_msg_and_die("module %s: QM_INFO", mn);
}
- while (query_module(mn, QM_REFS, deps, bufsize, &count)) {
+ if (my_query_module(mn, QM_REFS, (void **)&deps, &depsize, &count)) {
if (errno == ENOENT) {
/* The module was removed out from underneath us. */
continue;
}
- if (errno != ENOSPC) {
- error_msg_and_die("module %s: QM_REFS", mn);
- }
- deps = xrealloc(deps, bufsize = count);
+ perror_msg_and_die("module %s: QM_REFS", mn);
}
- printf("%-20s%8lu%4ld ", mn, info.size, info.usecount);
- if (count) printf("[");
- for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
- printf("%s%s", dn, (j==count-1)? "":" ");
- }
- if (count) printf("] ");
-
+ printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
if (info.flags & NEW_MOD_DELETED)
- printf("(deleted)");
+ printf(" (deleted)");
else if (info.flags & NEW_MOD_INITIALIZING)
- printf("(initializing)");
+ printf(" (initializing)");
else if (!(info.flags & NEW_MOD_RUNNING))
- printf("(uninitialized)");
+ printf(" (uninitialized)");
else {
if (info.flags & NEW_MOD_AUTOCLEAN)
- printf("(autoclean) ");
+ printf(" (autoclean) ");
if (!(info.flags & NEW_MOD_USED_ONCE))
- printf("(unused)");
+ printf(" (unused)");
}
+ if (count) printf(" [");
+ for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
+ printf("%s%s", dn, (j==count-1)? "":" ");
+ }
+ if (count) printf("]");
+
printf("\n");
}
+#ifdef CONFIG_FEATURE_CLEAN_UP
+ free(module_names);
+#endif
return( 0);
}
-#else /*BB_FEATURE_OLD_MODULE_INTERFACE*/
+#else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
extern int lsmod_main(int argc, char **argv)
{
- int fd, i;
- char line[128];
+ printf("Module Size Used by");
+ check_tainted();
- puts("Module Size Used by");
- fflush(stdout);
-
- if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) {
- while ((i = read(fd, line, sizeof(line))) > 0) {
- write(fileno(stdout), line, i);
- }
- close(fd);
- return 0;
- }
- perror_msg_and_die("/proc/modules");
+ if(print_file_by_name("/proc/modules") == FALSE)
return 1;
+ return 0;
}
-#endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/
+#endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
projects / oweals / busybox.git / blobdiff