Contents of /tags/mkinitrd-6_1_5/busybox/modutils/lsmod.c
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Wed Aug 5 17:52:52 2009 UTC (15 years, 1 month ago) by niro
File MIME type: text/plain
File size: 2242 byte(s)
Wed Aug 5 17:52:52 2009 UTC (15 years, 1 month ago) by niro
File MIME type: text/plain
File size: 2242 byte(s)
tagged 'mkinitrd-6_1_5'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini lsmod implementation for busybox |
4 | * |
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
6 | * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com> |
7 | * |
8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
9 | */ |
10 | |
11 | #include "libbb.h" |
12 | |
13 | #if ENABLE_FEATURE_CHECK_TAINTED_MODULE |
14 | enum { |
15 | TAINT_PROPRIETORY_MODULE = (1 << 0), |
16 | TAINT_FORCED_MODULE = (1 << 1), |
17 | TAINT_UNSAFE_SMP = (1 << 2), |
18 | }; |
19 | |
20 | static void check_tainted(void) |
21 | { |
22 | int tainted = 0; |
23 | char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL); |
24 | if (buf) { |
25 | tainted = atoi(buf); |
26 | if (ENABLE_FEATURE_CLEAN_UP) |
27 | free(buf); |
28 | } |
29 | |
30 | if (tainted) { |
31 | printf(" Tainted: %c%c%c\n", |
32 | tainted & TAINT_PROPRIETORY_MODULE ? 'P' : 'G', |
33 | tainted & TAINT_FORCED_MODULE ? 'F' : ' ', |
34 | tainted & TAINT_UNSAFE_SMP ? 'S' : ' '); |
35 | } else { |
36 | puts(" Not tainted"); |
37 | } |
38 | } |
39 | #else |
40 | static void check_tainted(void) { putchar('\n'); } |
41 | #endif |
42 | |
43 | int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
44 | int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
45 | { |
46 | #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT |
47 | char *token[4]; |
48 | parser_t *parser = config_open("/proc/modules"); |
49 | printf("%-24sSize Used by", "Module"); |
50 | check_tainted(); |
51 | |
52 | if (ENABLE_FEATURE_2_4_MODULES |
53 | && get_linux_version_code() < KERNEL_VERSION(2,6,0) |
54 | ) { |
55 | while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) { |
56 | if (token[3] != NULL && token[3][0] == '[') { |
57 | token[3]++; |
58 | token[3][strlen(token[3])-1] = '\0'; |
59 | } else |
60 | token[3] = (char *) ""; |
61 | printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); |
62 | } |
63 | } else { |
64 | while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) { |
65 | // N.B. token[3] is either '-' (module is not used by others) |
66 | // or comma-separated list ended by comma |
67 | // so trimming the trailing char is just what we need! |
68 | token[3][strlen(token[3])-1] = '\0'; |
69 | printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); |
70 | } |
71 | } |
72 | if (ENABLE_FEATURE_CLEAN_UP) |
73 | config_close(parser); |
74 | #else |
75 | check_tainted(); |
76 | xprint_and_close_file(xfopen_for_read("/proc/modules")); |
77 | #endif |
78 | return EXIT_SUCCESS; |
79 | } |