Ignore:
Timestamp:
Feb 25, 2011, 9:26:54 PM (13 years ago)
Author:
Bruno Cornec
Message:
  • Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
File:
1 edited

Legend:

Unmodified
Added
Removed

  • branches/2.2.9/mindi-busybox/modutils/lsmod.c

    r1765 r2725  
    44 *
    55 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
     6 * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
    67 *
    7  * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
    8  * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
    9  * (which lack the query_module() interface).
    10  *
    11  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
     8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
    129 */
    1310
     11//applet:IF_LSMOD(APPLET(lsmod, _BB_DIR_SBIN, _BB_SUID_DROP))
     12
     13//usage:#if !ENABLE_MODPROBE_SMALL
     14//usage:#define lsmod_trivial_usage
     15//usage:       ""
     16//usage:#define lsmod_full_usage "\n\n"
     17//usage:       "List the currently loaded kernel modules"
     18//usage:#endif
     19
    1420#include "libbb.h"
     21#include "unicode.h"
    1522
    16 
    17 #if !ENABLE_FEATURE_CHECK_TAINTED_MODULE
    18 static void check_tainted(void) { puts(""); }
    19 #else
    20 #define TAINT_FILENAME                  "/proc/sys/kernel/tainted"
    21 #define TAINT_PROPRIETORY_MODULE        (1<<0)
    22 #define TAINT_FORCED_MODULE             (1<<1)
    23 #define TAINT_UNSAFE_SMP                (1<<2)
     23#if ENABLE_FEATURE_CHECK_TAINTED_MODULE
     24enum {
     25    TAINT_PROPRIETORY_MODULE = (1 << 0),
     26    TAINT_FORCED_MODULE      = (1 << 1),
     27    TAINT_UNSAFE_SMP         = (1 << 2),
     28};
    2429
    2530static void check_tainted(void)
    2631{
    27     int tainted;
    28     FILE *f;
     32    int tainted = 0;
     33    char *buf = xmalloc_open_read_close("/proc/sys/kernel/tainted", NULL);
     34    if (buf) {
     35        tainted = atoi(buf);
     36        if (ENABLE_FEATURE_CLEAN_UP)
     37            free(buf);
     38    }
    2939
    30     tainted = 0;
    31     if ((f = fopen(TAINT_FILENAME, "r"))) {
    32         fscanf(f, "%d", &tainted);
    33         fclose(f);
    34     }
    35     if (f && tainted) {
     40    if (tainted) {
    3641        printf("    Tainted: %c%c%c\n",
    3742                tainted & TAINT_PROPRIETORY_MODULE      ? 'P' : 'G',
    3843                tainted & TAINT_FORCED_MODULE           ? 'F' : ' ',
    3944                tainted & TAINT_UNSAFE_SMP              ? 'S' : ' ');
    40     }
    41     else {
    42         printf("    Not tainted\n");
     45    } else {
     46        puts("    Not tainted");
    4347    }
    4448}
     49#else
     50static void check_tainted(void) { putchar('\n'); }
    4551#endif
    4652
    47 #if ENABLE_FEATURE_QUERY_MODULE_INTERFACE
     53int lsmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
     54int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
     55{
     56#if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
     57    char *token[4];
     58    parser_t *parser = config_open("/proc/modules");
     59    init_unicode();
    4860
    49 struct module_info
    50 {
    51     unsigned long addr;
    52     unsigned long size;
    53     unsigned long flags;
    54     long usecount;
    55 };
    56 
    57 
    58 int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret);
    59 
    60 enum {
    61 /* Values for query_module's which.  */
    62     QM_MODULES = 1,
    63     QM_DEPS = 2,
    64     QM_REFS = 3,
    65     QM_SYMBOLS = 4,
    66     QM_INFO = 5,
    67 
    68 /* Bits of module.flags.  */
    69     NEW_MOD_RUNNING = 1,
    70     NEW_MOD_DELETED = 2,
    71     NEW_MOD_AUTOCLEAN = 4,
    72     NEW_MOD_VISITED = 8,
    73     NEW_MOD_USED_ONCE = 16,
    74     NEW_MOD_INITIALIZING = 64
    75 };
    76 
    77 int lsmod_main(int argc, char **argv);
    78 int lsmod_main(int argc, char **argv)
    79 {
    80     struct module_info info;
    81     char *module_names, *mn, *deps, *dn;
    82     size_t bufsize, depsize, nmod, count, i, j;
    83 
    84     module_names = deps = NULL;
    85     bufsize = depsize = 0;
    86     while (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) {
    87         if (errno != ENOSPC) bb_perror_msg_and_die("QM_MODULES");
    88         module_names = xmalloc(bufsize = nmod);
    89     }
    90 
    91     deps = xmalloc(depsize = 256);
    92     printf("Module\t\t\tSize  Used by");
     61    printf("%-24sSize  Used by", "Module");
    9362    check_tainted();
    9463
    95     for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
    96         if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
    97             if (errno == ENOENT) {
    98                 /* The module was removed out from underneath us. */
    99                 continue;
     64    if (ENABLE_FEATURE_2_4_MODULES
     65     && get_linux_version_code() < KERNEL_VERSION(2,6,0)
     66    ) {
     67        while (config_read(parser, token, 4, 3, "# \t", PARSE_NORMAL)) {
     68            if (token[3] != NULL && token[3][0] == '[') {
     69                token[3]++;
     70                token[3][strlen(token[3])-1] = '\0';
     71            } else
     72                token[3] = (char *) "";
     73# if ENABLE_UNICODE_SUPPORT
     74            {
     75                uni_stat_t uni_stat;
     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]);
     79                free(uni_name);
    10080            }
    101             /* else choke */
    102             bb_perror_msg_and_die("module %s: QM_INFO", mn);
     81# else
     82            printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
     83# endif
    10384        }
    104         while (query_module(mn, QM_REFS, deps, depsize, &count)) {
    105             if (errno == ENOENT) {
    106                 /* The module was removed out from underneath us. */
    107                 continue;
    108             } else if (errno != ENOSPC)
    109                 bb_perror_msg_and_die("module %s: QM_REFS", mn);
    110             deps = xrealloc(deps, count);
     85    } else {
     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!
     90            token[3][strlen(token[3])-1] = '\0';
     91# if ENABLE_UNICODE_SUPPORT
     92            {
     93                uni_stat_t uni_stat;
     94                char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]);
     95                unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width;
     96                printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]);
     97                free(uni_name);
     98            }
     99# else
     100            printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]);
     101# endif
    111102        }
    112         printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
    113         if (info.flags & NEW_MOD_DELETED)
    114             printf(" (deleted)");
    115         else if (info.flags & NEW_MOD_INITIALIZING)
    116             printf(" (initializing)");
    117         else if (!(info.flags & NEW_MOD_RUNNING))
    118             printf(" (uninitialized)");
    119         else {
    120             if (info.flags & NEW_MOD_AUTOCLEAN)
    121                 printf(" (autoclean) ");
    122             if (!(info.flags & NEW_MOD_USED_ONCE))
    123                 printf(" (unused)");
    124         }
    125         if (count) printf(" [");
    126         for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
    127             printf("%s%s", dn, (j==count-1)? "":" ");
    128         }
    129         if (count) printf("]");
    130 
    131         puts("");
    132103    }
    133 
    134 #if ENABLE_FEATURE_CLEAN_UP
    135     free(module_names);
     104    if (ENABLE_FEATURE_CLEAN_UP)
     105        config_close(parser);
     106#else
     107    check_tainted();
     108    xprint_and_close_file(xfopen_for_read("/proc/modules"));
    136109#endif
    137 
    138     return 0;
    139 }
    140 
    141 #else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
    142 
    143 int lsmod_main(int argc, char **argv);
    144 int lsmod_main(int argc, char **argv)
    145 {
    146     FILE *file = xfopen("/proc/modules", "r");
    147 
    148     printf("Module                  Size  Used by");
    149     check_tainted();
    150 #if defined(CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT)
    151     {
    152         char *line;
    153         while ((line = xmalloc_fgets(file)) != NULL) {
    154             char *tok;
    155 
    156             tok = strtok(line, " \t");
    157             printf("%-19s", tok);
    158             tok = strtok(NULL, " \t\n");
    159             printf(" %8s", tok);
    160             tok = strtok(NULL, " \t\n");
    161             /* Null if no module unloading support. */
    162             if (tok) {
    163                 printf("  %s", tok);
    164                 tok = strtok(NULL, "\n");
    165                 if (!tok)
    166                     tok = (char*)"";
    167                 /* New-style has commas, or -.  If so,
    168                 truncate (other fields might follow). */
    169                 else if (strchr(tok, ',')) {
    170                     tok = strtok(tok, "\t ");
    171                     /* Strip trailing comma. */
    172                     if (tok[strlen(tok)-1] == ',')
    173                         tok[strlen(tok)-1] = '\0';
    174                 } else if (tok[0] == '-'
    175                  && (tok[1] == '\0' || isspace(tok[1]))
    176                 ) {
    177                     tok = (char*)"";
    178                 }
    179                 printf(" %s", tok);
    180             }
    181             puts("");
    182             free(line);
    183         }
    184         fclose(file);
    185     }
    186 #else
    187     xprint_and_close_file(file);
    188 #endif  /*  CONFIG_FEATURE_2_6_MODULES  */
    189110    return EXIT_SUCCESS;
    190111}
    191 
    192 #endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
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