Don't scan libnice version if it wasn't retrieved (fixes #1858)

meetecho · Nov 8, 2019 · dd1cb8e · dd1cb8e
1 parent f426cef
commit dd1cb8e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/janus.c b/janus.c
@@ -4813,7 +4813,7 @@ gint main(int argc, char *argv[])
 
 	/* Make sure libnice is recent enough, otherwise print a warning */
 	int libnice_version = 0;
-	if(sscanf(libnice_version_string, "%*d.%*d.%d", &libnice_version) == 1) {
+	if(libnice_version_string != NULL && sscanf(libnice_version_string, "%*d.%*d.%d", &libnice_version) == 1) {
 		if(libnice_version < 15) {
 			JANUS_LOG(LOG_WARN, "libnice version outdated: %s installed, at least 0.1.15 recommended\n",
 				libnice_version_string);