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102 lines
2.5 KiB
102 lines
2.5 KiB
/* |
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* kmod-lsmod - list modules from linux kernel using libkmod. |
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* |
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* Copyright (C) 2011-2013 ProFUSION embedded systems |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#include <errno.h> |
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#include <stddef.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <libkmod/libkmod.h> |
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#include "kmod.h" |
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static int do_lsmod(int argc, char *argv[]) |
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{ |
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struct kmod_ctx *ctx; |
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const char *null_config = NULL; |
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struct kmod_list *list, *itr; |
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int err; |
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if (argc != 1) { |
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fprintf(stderr, "Usage: %s\n", argv[0]); |
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return EXIT_FAILURE; |
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} |
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ctx = kmod_new(NULL, &null_config); |
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if (ctx == NULL) { |
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fputs("Error: kmod_new() failed!\n", stderr); |
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return EXIT_FAILURE; |
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} |
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err = kmod_module_new_from_loaded(ctx, &list); |
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if (err < 0) { |
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fprintf(stderr, "Error: could not get list of modules: %s\n", |
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strerror(-err)); |
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kmod_unref(ctx); |
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return EXIT_FAILURE; |
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} |
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puts("Module Size Used by"); |
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kmod_list_foreach(itr, list) { |
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struct kmod_module *mod = kmod_module_get_module(itr); |
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const char *name = kmod_module_get_name(mod); |
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int use_count = kmod_module_get_refcnt(mod); |
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long size = kmod_module_get_size(mod); |
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struct kmod_list *holders, *hitr; |
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int first = 1; |
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printf("%-19s %8ld %d", name, size, use_count); |
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holders = kmod_module_get_holders(mod); |
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kmod_list_foreach(hitr, holders) { |
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struct kmod_module *hm = kmod_module_get_module(hitr); |
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if (!first) { |
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putchar(','); |
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} else { |
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putchar(' '); |
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first = 0; |
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} |
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fputs(kmod_module_get_name(hm), stdout); |
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kmod_module_unref(hm); |
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} |
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putchar('\n'); |
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kmod_module_unref_list(holders); |
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kmod_module_unref(mod); |
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} |
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kmod_module_unref_list(list); |
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kmod_unref(ctx); |
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return EXIT_SUCCESS; |
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} |
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const struct kmod_cmd kmod_cmd_compat_lsmod = { |
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.name = "lsmod", |
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.cmd = do_lsmod, |
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.help = "compat lsmod command", |
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}; |
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const struct kmod_cmd kmod_cmd_list = { |
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.name = "list", |
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.cmd = do_lsmod, |
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.help = "list currently loaded modules", |
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};
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