1 files changed, 102 insertions, 0 deletions
diff --git a/tools/lsmod.c b/tools/lsmod.c
new file mode 100644
index 0000000..d9a27f2
--- /dev/null
+++ b/tools/lsmod.c
@@ -0,0 +1,102 @@
+/*
+ * 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",
+};