read list of devices from index, make index private to database

[elogind.git] / udev_db.c

diff --git a/udev_db.c b/udev_db.c
index 40082abf03461a00580783c0055f7acf0f73df92..8c9e474ad402b6e380909477aa553a4cf1587782 100644 (file)
--- a/udev_db.c
+++ b/udev_db.c
@@ -77,6 +77,46 @@ static int name_index(const char *devpath, const char *name, int add)
        return 0;
 }
 
+int udev_db_get_devices_by_name(const char *name, struct list_head *name_list)
+{
+       char dirname[PATH_MAX];
+       size_t start;
+       DIR *dir;
+       int rc = 0;
+
+       strlcpy(dirname, udev_root, sizeof(dirname));
+       start = strlcat(dirname, "/"DB_NAME_INDEX_DIR"/", sizeof(dirname));
+       strlcat(dirname, name, sizeof(dirname));
+       path_encode(&dirname[start], sizeof(dirname) - start);
+
+       dir = opendir(dirname);
+       if (dir == NULL) {
+               info("no index directory '%s': %s", dirname, strerror(errno));
+               rc = -1;
+               goto out;
+       }
+
+       info("found index directory '%s'", dirname);
+       while (1) {
+               struct dirent *ent;
+               char device[PATH_SIZE];
+
+               ent = readdir(dir);
+               if (ent == NULL || ent->d_name[0] == '\0')
+                       break;
+               if (ent->d_name[0] == '.')
+                       continue;
+
+               strlcpy(device, ent->d_name, sizeof(device));
+               path_decode(device);
+               name_list_add(name_list, device, 0);
+               rc++;
+       }
+       closedir(dir);
+out:
+       return rc;
+}
+
 int udev_db_add_device(struct udevice *udev)
 {
        char filename[PATH_SIZE];
@@ -288,7 +328,7 @@ int udev_db_lookup_name(const char *name, char *devpath, size_t len)
 
                strlcpy(device, ent->d_name, sizeof(device));
                path_decode(device);
-               udev = udev_device_init();
+               udev = udev_device_init(NULL);
                if (udev == NULL)
                        break;
                if (udev_db_get_device(udev, device) == 0) {