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#include "libbb.h" 11#include "unicode.h" 12 13#if ENABLE_FEATURE_CHECK_TAINTED_MODULE 14enum { 15 TAINT_PROPRIETORY_MODULE = (1 << 0), 16 TAINT_FORCED_MODULE = (1 << 1), 17 TAINT_UNSAFE_SMP = (1 << 2), 18}; 19 20static 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 40static void check_tainted(void) { putchar('\n'); } 41#endif 42 43int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 44int 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 init_unicode(); 50 51 printf("%-24sSize Used by", "Module"); 52 check_tainted(); 53 54 if (ENABLE_FEATURE_2_4_MODULES 55 && get_linux_version_code() < KERNEL_VERSION(2,6,0) 56 ) { 57 while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) { 58 if (token[3] != NULL && token[3][0] == '[') { 59 token[3]++; 60 token[3][strlen(token[3])-1] = '\0'; 61 } else 62 token[3] = (char *) ""; 63# if ENABLE_UNICODE_SUPPORT 64 { 65 uni_stat_t uni_stat; 66 char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); 67 unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; 68 printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); 69 free(uni_name); 70 } 71# else 72 printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); 73# endif 74 } 75 } else { 76 while (config_read(parser, token, 4, 4, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) { 77 // N.B. token[3] is either '-' (module is not used by others) 78 // or comma-separated list ended by comma 79 // so trimming the trailing char is just what we need! 80 token[3][strlen(token[3])-1] = '\0'; 81# if ENABLE_UNICODE_SUPPORT 82 { 83 uni_stat_t uni_stat; 84 char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); 85 unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; 86 printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); 87 free(uni_name); 88 } 89# else 90 printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); 91# endif 92 } 93 } 94 if (ENABLE_FEATURE_CLEAN_UP) 95 config_close(parser); 96#else 97 check_tainted(); 98 xprint_and_close_file(xfopen_for_read("/proc/modules")); 99#endif 100 return EXIT_SUCCESS; 101} 102