uri-util: The uri_parse_host_name_dns() would segfault if the hostname_r parameter...

diff --git a/src/lib/uri-util.c b/src/lib/uri-util.c
index bfdc07fc1474879c8c3b5d546037e11748c79d3e..b3e33b9c20839d3f1d438d56ab477bac16828fa1 100644 (file)
--- a/src/lib/uri-util.c
+++ b/src/lib/uri-util.c
@@ -559,7 +559,8 @@ int uri_parse_host_name_dns(struct uri_parser *parser,
        if ((ret=uri_do_parse_host_name_dns(parser, host_name)) <= 0)
                return ret;
 
-       *host_name_r = str_c(host_name);
+       if (host_name_r != NULL)
+               *host_name_r = str_c(host_name);
        return 1;
 }