1 /* vi: set sw=4 ts=4: */
3 * Mini lsmod implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
11 //config: bool "lsmod (1.9 kb)"
13 //config: select PLATFORM_LINUX
15 //config: lsmod is used to display a list of loaded modules.
17 //config:config FEATURE_LSMOD_PRETTY_2_6_OUTPUT
18 //config: bool "Pretty output"
20 //config: depends on LSMOD && !MODPROBE_SMALL
22 //config: This option makes output format of lsmod adjusted to
23 //config: the format of module-init-tools for Linux kernel 2.6.
24 //config: Increases size somewhat.
26 //applet:IF_LSMOD(IF_NOT_MODPROBE_SMALL(APPLET_NOEXEC(lsmod, lsmod, BB_DIR_SBIN, BB_SUID_DROP, lsmod)))
28 //kbuild:ifneq ($(CONFIG_MODPROBE_SMALL),y)
29 //kbuild:lib-$(CONFIG_LSMOD) += lsmod.o modutils.o
32 //usage:#if !ENABLE_MODPROBE_SMALL
33 //usage:#define lsmod_trivial_usage
35 //usage:#define lsmod_full_usage "\n\n"
36 //usage: "List loaded kernel modules"
42 #if ENABLE_FEATURE_CHECK_TAINTED_MODULE
44 TAINT_PROPRIETORY_MODULE = (1 << 0),
45 TAINT_FORCED_MODULE = (1 << 1),
46 TAINT_UNSAFE_SMP = (1 << 2),
49 static void check_tainted(void)
52 char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL);
55 if (ENABLE_FEATURE_CLEAN_UP)
60 printf(" Tainted: %c%c%c\n",
61 tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G',
62 tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
63 tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
69 static void check_tainted(void) { putchar('\n'); }
72 int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
73 int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
75 #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
77 parser_t *parser = config_open("/proc/modules");
80 printf("%-24sSize Used by", "Module");
83 if (ENABLE_FEATURE_2_4_MODULES
84 && get_linux_version_code() < KERNEL_VERSION(2,6,0)
86 while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) {
87 if (token[3] != NULL && token[3][0] == '[') {
89 token[3][strlen(token[3])-1] = '\0';
91 token[3] = (char *) "";
92 # if ENABLE_UNICODE_SUPPORT
95 char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]);
96 unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width;
97 printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]);
101 printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
105 while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
106 // N.B. token[3] is either '-' (module is not used by others)
107 // or comma-separated list ended by comma
108 // so trimming the trailing char is just what we need!
110 token[3][strlen(token[3]) - 1] = '\0';
111 # if ENABLE_UNICODE_SUPPORT
114 char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]);
115 unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width;
116 printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]);
120 printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
124 if (ENABLE_FEATURE_CLEAN_UP)
125 config_close(parser);
128 xprint_and_close_file(xfopen_for_read("/proc/modules"));