| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini lsmod implementation for busybox |
| * |
| * Copyright (C) 1999,2000,2001 by Lineo, inc. |
| * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| * |
| * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and |
| * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels |
| * (which lack the query_module() interface). |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "busybox.h" |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <stddef.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <ctype.h> |
| #include <assert.h> |
| #include <getopt.h> |
| #include <sys/utsname.h> |
| #include <sys/file.h> |
| |
| |
| |
| #ifdef BB_FEATURE_NEW_MODULE_INTERFACE |
| |
| struct module_info |
| { |
| unsigned long addr; |
| unsigned long size; |
| unsigned long flags; |
| long usecount; |
| }; |
| |
| |
| int query_module(const char *name, int which, void *buf, size_t bufsize, |
| size_t *ret); |
| |
| /* Values for query_module's which. */ |
| static const int QM_MODULES = 1; |
| static const int QM_DEPS = 2; |
| static const int QM_REFS = 3; |
| static const int QM_SYMBOLS = 4; |
| static const int QM_INFO = 5; |
| |
| /* Bits of module.flags. */ |
| static const int NEW_MOD_RUNNING = 1; |
| static const int NEW_MOD_DELETED = 2; |
| static const int NEW_MOD_AUTOCLEAN = 4; |
| static const int NEW_MOD_VISITED = 8; |
| static const int NEW_MOD_USED_ONCE = 16; |
| static const int NEW_MOD_INITIALIZING = 64; |
| |
| |
| extern int lsmod_main(int argc, char **argv) |
| { |
| struct module_info info; |
| char *module_names, *mn, *deps, *dn; |
| size_t bufsize, nmod, count, i, j; |
| |
| module_names = xmalloc(bufsize = 256); |
| deps = xmalloc(bufsize); |
| if (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) { |
| perror_msg_and_die("QM_MODULES"); |
| } |
| |
| printf("Module Size Used by\n"); |
| for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) { |
| if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) { |
| if (errno == ENOENT) { |
| /* The module was removed out from underneath us. */ |
| continue; |
| } |
| /* else choke */ |
| perror_msg_and_die("module %s: QM_INFO", mn); |
| } |
| while (query_module(mn, QM_REFS, deps, bufsize, &count)) { |
| if (errno == ENOENT) { |
| /* The module was removed out from underneath us. */ |
| continue; |
| } |
| if (errno != ENOSPC) { |
| error_msg_and_die("module %s: QM_REFS", mn); |
| } |
| deps = xrealloc(deps, bufsize = count); |
| } |
| printf("%-20s%8lu%4ld ", mn, info.size, info.usecount); |
| if (count) printf("["); |
| for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) { |
| printf("%s%s", dn, (j==count-1)? "":" "); |
| } |
| if (count) printf("] "); |
| |
| if (info.flags & NEW_MOD_DELETED) |
| printf("(deleted)"); |
| else if (info.flags & NEW_MOD_INITIALIZING) |
| printf("(initializing)"); |
| else if (!(info.flags & NEW_MOD_RUNNING)) |
| printf("(uninitialized)"); |
| else { |
| if (info.flags & NEW_MOD_AUTOCLEAN) |
| printf("(autoclean) "); |
| if (!(info.flags & NEW_MOD_USED_ONCE)) |
| printf("(unused)"); |
| } |
| printf("\n"); |
| } |
| |
| |
| return( 0); |
| } |
| |
| #else /*BB_FEATURE_OLD_MODULE_INTERFACE*/ |
| |
| extern int lsmod_main(int argc, char **argv) |
| { |
| int fd, i; |
| char line[128]; |
| |
| puts("Module Size Used by"); |
| fflush(stdout); |
| |
| if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) { |
| while ((i = read(fd, line, sizeof(line))) > 0) { |
| write(fileno(stdout), line, i); |
| } |
| close(fd); |
| return 0; |
| } |
| perror_msg_and_die("/proc/modules"); |
| return 1; |
| } |
| |
| #endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/ |