media_index: Make media indexing tolerable of bad symlinks.

Media indexing will now skip over files and directories that stat
will not return information about. This can occur under normal
conditions when a symbolic link points to a location that no longer
exists.
........

Merged revisions 403312 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@403313 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/media_index.c

@@ -551,9 +551,8 @@ static int media_index_update(struct ast_media_index *index,
 		ast_str_set(&statfile, 0, "%s/%s", ast_str_buffer(index_dir), dent->d_name);
 
 		if (stat(ast_str_buffer(statfile), &st) < 0) {
-			ast_log(LOG_ERROR, "Failed to stat %s: %s\n", ast_str_buffer(statfile), strerror(errno));
-			res = -1;
-			break;
+			ast_log(LOG_WARNING, "Failed to stat %s: %s\n", ast_str_buffer(statfile), strerror(errno));
+			continue;
 		}
 
 		if (S_ISDIR(st.st_mode)) {