/*
* Mini lsmod implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <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
+ * (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
*
*/
-#include "internal.h"
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <stddef.h>
#include <errno.h>
#include <unistd.h>
#include <assert.h>
#include <getopt.h>
#include <sys/utsname.h>
+#include <sys/file.h>
+#include "busybox.h"
+
+#ifdef BB_FEATURE_NEW_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. */
-#define QM_MODULES 1
-#define QM_DEPS 2
-#define QM_REFS 3
-#define QM_SYMBOLS 4
-#define QM_INFO 5
+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;
/* Bits of module.flags. */
-#define NEW_MOD_RUNNING 1
-#define NEW_MOD_DELETED 2
-#define NEW_MOD_AUTOCLEAN 4
-#define NEW_MOD_VISITED 8
-#define NEW_MOD_USED_ONCE 16
-#define NEW_MOD_INITIALIZING 64
+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;
+
+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)) {
- fatalError("QM_MODULES: %s\n", strerror(errno));
+ if (my_query_module(NULL, QM_MODULES, (void **)&module_names, &bufsize,
+ &nmod)) {
+ perror_msg_and_die("QM_MODULES");
}
+ deps = xmalloc(depsize = 256);
printf("Module Size Used by\n");
for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
continue;
}
/* else choke */
- fatalError("module %s: QM_INFO: %s\n", mn, strerror(errno));
+ 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) {
- fatalError("module %s: QM_REFS: %s", mn, strerror(errno));
- }
- 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("] ");
-
if (info.flags & NEW_MOD_DELETED)
printf("(deleted)");
else if (info.flags & NEW_MOD_INITIALIZING)
printf("(uninitialized)");
else {
if (info.flags & NEW_MOD_AUTOCLEAN)
- printf("(autoclean)");
+ printf("(autoclean) ");
if (!(info.flags & NEW_MOD_USED_ONCE))
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");
}
return( 0);
}
+
+#else /*BB_FEATURE_OLD_MODULE_INTERFACE*/
+
+extern int lsmod_main(int argc, char **argv)
+{
+ int fd, i;
+ char line[128];
+
+ 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");
+ return 1;
+}
+
+#endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/
projects / oweals / busybox.git / blobdiff