1 files changed, 0 insertions, 158 deletions
diff --git a/alsa-utils/alsactl/init_sysfs.c b/alsa-utils/alsactl/init_sysfs.c
deleted file mode 100644
index 0cbada2..0000000
--- a/alsa-utils/alsactl/init_sysfs.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (C) 2005-2006 Kay Sievers <kay.sievers@vrfy.org>
- *	              2008 Jaroslav Kysela <perex@perex.cz>
- *
- *	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 version 2 of the License.
- * 
- *	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.,
- *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- *
- */
-
-
-static char sysfs_path[PATH_SIZE];
-
-/* attribute value cache */
-static LIST_HEAD(attr_list);
-struct sysfs_attr {
-	struct list_head node;
-	char path[PATH_SIZE];
-	char *value;			/* points to value_local if value is cached */
-	char value_local[NAME_SIZE];
-};
-
-static int sysfs_init(void)
-{
-	const char *env;
-	char sysfs_test[PATH_SIZE];
-
-	env = getenv("SYSFS_PATH");
-	if (env) {
-		strlcpy(sysfs_path, env, sizeof(sysfs_path));
-		remove_trailing_chars(sysfs_path, '/');
-	} else
-		strlcpy(sysfs_path, "/sys", sizeof(sysfs_path));
-	dbg("sysfs_path='%s'", sysfs_path);
-
-	strlcpy(sysfs_test, sysfs_path, sizeof(sysfs_test));
-	strlcat(sysfs_test, "/kernel/uevent_helper", sizeof(sysfs_test));
-	if (access(sysfs_test, F_OK)) {
-		error("sysfs path '%s' is invalid\n", sysfs_path);
-		return -errno;
-	}
-
-	INIT_LIST_HEAD(&attr_list);
-	return 0;
-}
-
-static void sysfs_cleanup(void)
-{
-	struct sysfs_attr *attr_loop;
-	struct sysfs_attr *attr_temp;
-
-	list_for_each_entry_safe(attr_loop, attr_temp, &attr_list, node) {
-		list_del(&attr_loop->node);
-		free(attr_loop);
-	}
-}
-
-static char *sysfs_attr_get_value(const char *devpath, const char *attr_name)
-{
-	char path_full[PATH_SIZE];
-	const char *path;
-	char value[NAME_SIZE];
-	struct sysfs_attr *attr_loop;
-	struct sysfs_attr *attr;
-	struct stat statbuf;
-	int fd;
-	ssize_t size;
-	size_t sysfs_len;
-
-	dbg("open '%s'/'%s'", devpath, attr_name);
-	sysfs_len = strlcpy(path_full, sysfs_path, sizeof(path_full));
-	path = &path_full[sysfs_len];
-	strlcat(path_full, devpath, sizeof(path_full));
-	strlcat(path_full, "/", sizeof(path_full));
-	strlcat(path_full, attr_name, sizeof(path_full));
-
-	/* look for attribute in cache */
-	list_for_each_entry(attr_loop, &attr_list, node) {
-		if (strcmp(attr_loop->path, path) == 0) {
-			dbg("found in cache '%s'", attr_loop->path);
-			return attr_loop->value;
-		}
-	}
-
-	/* store attribute in cache (also negatives are kept in cache) */
-	dbg("new uncached attribute '%s'", path_full);
-	attr = malloc(sizeof(struct sysfs_attr));
-	if (attr == NULL)
-		return NULL;
-	memset(attr, 0x00, sizeof(struct sysfs_attr));
-	strlcpy(attr->path, path, sizeof(attr->path));
-	dbg("add to cache '%s'", path_full);
-	list_add(&attr->node, &attr_list);
-
-	if (lstat(path_full, &statbuf) != 0) {
-		dbg("stat '%s' failed: %s", path_full, strerror(errno));
-		goto out;
-	}
-
-	if (S_ISLNK(statbuf.st_mode)) {
-		/* links return the last element of the target path */
-		char link_target[PATH_SIZE];
-		int len;
-		const char *pos;
-
-		len = readlink(path_full, link_target, sizeof(link_target));
-		if (len > 0) {
-			link_target[len] = '\0';
-			pos = strrchr(link_target, '/');
-			if (pos != NULL) {
-				dbg("cache '%s' with link value '%s'", path_full, pos+1);
-				strlcpy(attr->value_local, &pos[1], sizeof(attr->value_local));
-				attr->value = attr->value_local;
-			}
-		}
-		goto out;
-	}
-
-	/* skip directories */
-	if (S_ISDIR(statbuf.st_mode))
-		goto out;
-
-	/* skip non-readable files */
-	if ((statbuf.st_mode & S_IRUSR) == 0)
-		goto out;
-
-	/* read attribute value */
-	fd = open(path_full, O_RDONLY);
-	if (fd < 0) {
-		dbg("attribute '%s' does not exist", path_full);
-		goto out;
-	}
-	size = read(fd, value, sizeof(value));
-	close(fd);
-	if (size < 0)
-		goto out;
-	if (size == sizeof(value))
-		goto out;
-
-	/* got a valid value, store and return it */
-	value[size] = '\0';
-	remove_trailing_chars(value, '\n');
-	dbg("cache '%s' with attribute value '%s'", path_full, value);
-	strlcpy(attr->value_local, value, sizeof(attr->value_local));
-	attr->value = attr->value_local;
-
-out:
-	return attr->value;
-}