| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini lsmod implementation for busybox |
| * |
| * Copyright (C) 1999,2000 by Lineo, inc. |
| * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| * |
| * 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 "internal.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> |
| |
| |
| |
| 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. */ |
| #define QM_MODULES 1 |
| #define QM_DEPS 2 |
| #define QM_REFS 3 |
| #define QM_SYMBOLS 4 |
| #define QM_INFO 5 |
| |
| /* Bits of module.flags. */ |
| #define NEW_MOD_RUNNING 1 |
| #define NEW_MOD_DELETED 2 |
| #define NEW_MOD_AUTOCLEAN 4 |
| #define NEW_MOD_VISITED 8 |
| #define NEW_MOD_USED_ONCE 16 |
| #define 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)) { |
| fatalError("QM_MODULES: %s\n", strerror(errno)); |
| } |
| |
| 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 */ |
| fatalError("module %s: QM_INFO: %s\n", mn, strerror(errno)); |
| } |
| while (query_module(mn, QM_REFS, deps, bufsize, &count)) { |
| if (errno == ENOENT) { |
| /* The module was removed out from underneath us. */ |
| continue; |
| } |
| if (errno != ENOSPC) { |
| fatalError("module %s: QM_REFS: %s", mn, strerror(errno)); |
| } |
| 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("]"); |
| printf("\n"); |
| |
| 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)"); |
| } |
| } |
| |
| |
| return( 0); |
| } |