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 //applet:IF_LSMOD(APPLET(lsmod, BB_DIR_SBIN, BB_SUID_DROP))
13 //usage:#if !ENABLE_MODPROBE_SMALL
14 //usage:#define lsmod_trivial_usage
16 //usage:#define lsmod_full_usage "\n\n"
17 //usage: "List the currently loaded kernel modules"
23 #if ENABLE_FEATURE_CHECK_TAINTED_MODULE
25 TAINT_PROPRIETORY_MODULE
= (1 << 0),
26 TAINT_FORCED_MODULE
= (1 << 1),
27 TAINT_UNSAFE_SMP
= (1 << 2),
30 static void check_tainted(void)
33 char *buf
= xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL
);
36 if (ENABLE_FEATURE_CLEAN_UP
)
41 printf(" Tainted: %c%c%c\n",
42 tainted
& TAINT_PROPRIETORY_MODULE
? 'P' : 'G',
43 tainted
& TAINT_FORCED_MODULE
? 'F' : ' ',
44 tainted
& TAINT_UNSAFE_SMP
? 'S' : ' ');
50 static void check_tainted(void) { putchar('\n'); }
53 int lsmod_main(int argc
, char **argv
) MAIN_EXTERNALLY_VISIBLE
;
54 int lsmod_main(int argc UNUSED_PARAM
, char **argv UNUSED_PARAM
)
56 #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
58 parser_t
*parser
= config_open("/proc/modules");
61 printf("%-24sSize Used by", "Module");
64 if (ENABLE_FEATURE_2_4_MODULES
65 && get_linux_version_code() < KERNEL_VERSION(2,6,0)
67 while (config_read(parser
, token
, 4, 3, "# \t", PARSE_NORMAL
)) {
68 if (token
[3] != NULL
&& token
[3][0] == '[') {
70 token
[3][strlen(token
[3])-1] = '\0';
72 token
[3] = (char *) "";
73 # if ENABLE_UNICODE_SUPPORT
76 char *uni_name
= unicode_conv_to_printable(&uni_stat
, token
[0]);
77 unsigned pad_len
= (uni_stat
.unicode_width
> 19) ? 0 : 19 - uni_stat
.unicode_width
;
78 printf("%s%*s %8s %2s %s\n", uni_name
, pad_len
, "", token
[1], token
[2], token
[3]);
82 printf("%-19s %8s %2s %s\n", token
[0], token
[1], token
[2], token
[3]);
86 while (config_read(parser
, token
, 4, 4, "# \t", PARSE_NORMAL
& ~PARSE_GREEDY
)) {
87 // N.B. token[3] is either '-' (module is not used by others)
88 // or comma-separated list ended by comma
89 // so trimming the trailing char is just what we need!
91 token
[3][strlen(token
[3]) - 1] = '\0';
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 if (ENABLE_FEATURE_CLEAN_UP
)
106 config_close(parser
);
109 xprint_and_close_file(xfopen_for_read("/proc/modules"));