| /* |
| * kmod-lsmod - list modules from linux kernel using libkmod. |
| * |
| * Copyright (C) 2011-2013 ProFUSION embedded systems |
| * |
| * 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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <errno.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <libkmod/libkmod.h> |
| |
| #include "kmod.h" |
| |
| static int do_lsmod(int argc, char *argv[]) |
| { |
| struct kmod_ctx *ctx; |
| const char *null_config = NULL; |
| struct kmod_list *list, *itr; |
| int err; |
| |
| if (argc != 1) { |
| fprintf(stderr, "Usage: %s\n", argv[0]); |
| return EXIT_FAILURE; |
| } |
| |
| ctx = kmod_new(NULL, &null_config); |
| if (ctx == NULL) { |
| fputs("Error: kmod_new() failed!\n", stderr); |
| return EXIT_FAILURE; |
| } |
| |
| err = kmod_module_new_from_loaded(ctx, &list); |
| if (err < 0) { |
| fprintf(stderr, "Error: could not get list of modules: %s\n", |
| strerror(-err)); |
| kmod_unref(ctx); |
| return EXIT_FAILURE; |
| } |
| |
| puts("Module Size Used by"); |
| |
| kmod_list_foreach(itr, list) { |
| struct kmod_module *mod = kmod_module_get_module(itr); |
| const char *name = kmod_module_get_name(mod); |
| int use_count = kmod_module_get_refcnt(mod); |
| long size = kmod_module_get_size(mod); |
| struct kmod_list *holders, *hitr; |
| int first = 1; |
| |
| printf("%-19s %8ld %d", name, size, use_count); |
| holders = kmod_module_get_holders(mod); |
| kmod_list_foreach(hitr, holders) { |
| struct kmod_module *hm = kmod_module_get_module(hitr); |
| |
| if (!first) { |
| putchar(','); |
| } else { |
| putchar(' '); |
| first = 0; |
| } |
| |
| fputs(kmod_module_get_name(hm), stdout); |
| kmod_module_unref(hm); |
| } |
| putchar('\n'); |
| kmod_module_unref_list(holders); |
| kmod_module_unref(mod); |
| } |
| kmod_module_unref_list(list); |
| kmod_unref(ctx); |
| |
| return EXIT_SUCCESS; |
| } |
| |
| const struct kmod_cmd kmod_cmd_compat_lsmod = { |
| .name = "lsmod", |
| .cmd = do_lsmod, |
| .help = "compat lsmod command", |
| }; |
| |
| const struct kmod_cmd kmod_cmd_list = { |
| .name = "list", |
| .cmd = do_lsmod, |
| .help = "list currently loaded modules", |
| }; |