/*
* Mini lsmod implementation for busybox
*
- * Copyright (C) 1999 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
- *
- * 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
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
+#include "libbb.h"
+#include "unicode.h"
-#include "internal.h"
-#include <stdio.h>
+#if ENABLE_FEATURE_CHECK_TAINTED_MODULE
+enum {
+ TAINT_PROPRIETORY_MODULE = (1 << 0),
+ TAINT_FORCED_MODULE = (1 << 1),
+ TAINT_UNSAFE_SMP = (1 << 2),
+};
-
-extern int lsmod_main(int argc, char **argv)
+static void check_tainted(void)
{
-#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
- char *cmd[] = { "cat", "/dev/modules", "\0" };
+ int tainted = 0;
+ char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL);
+ if (buf) {
+ tainted = atoi(buf);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(buf);
+ }
+
+ 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 {
+ puts(" Not tainted");
+ }
+}
#else
-#if ! defined BB_FEATURE_USE_PROCFS
-#error Sorry, I depend on the /proc filesystem right now.
-#endif
- char *cmd[] = { "cat", "/proc/modules", "\0" };
+static void check_tainted(void) { putchar('\n'); }
#endif
- exit(cat_main(3, cmd));
+int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
+{
+#if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
+ char *token[4];
+ parser_t *parser = config_open("/proc/modules");
+# if ENABLE_FEATURE_ASSUME_UNICODE
+ size_t name_len;
+# endif
+ check_unicode_in_env();
+
+ printf("%-24sSize Used by", "Module");
+ check_tainted();
+
+ if (ENABLE_FEATURE_2_4_MODULES
+ && get_linux_version_code() < KERNEL_VERSION(2,6,0)
+ ) {
+ while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) {
+ if (token[3] != NULL && token[3][0] == '[') {
+ token[3]++;
+ token[3][strlen(token[3])-1] = '\0';
+ } else
+ token[3] = (char *) "";
+# if ENABLE_FEATURE_ASSUME_UNICODE
+ name_len = bb_mbstrlen(token[0]);
+ name_len = (name_len > 19) ? 0 : 19 - name_len;
+ printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]);
+# else
+ printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
+# endif
+ }
+ } else {
+ while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
+ // N.B. token[3] is either '-' (module is not used by others)
+ // or comma-separated list ended by comma
+ // so trimming the trailing char is just what we need!
+ token[3][strlen(token[3])-1] = '\0';
+# if ENABLE_FEATURE_ASSUME_UNICODE
+ name_len = bb_mbstrlen(token[0]);
+ name_len = (name_len > 19) ? 0 : 19 - name_len;
+ printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]);
+# else
+ printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
+# endif
+ }
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ config_close(parser);
+#else
+ check_tainted();
+ xprint_and_close_file(xfopen_for_read("/proc/modules"));
+#endif
+ return EXIT_SUCCESS;
}