From: Stephan Bosch <stephan@rename-it.nl>
Date: Mon, 16 May 2016 16:19:24 +0000 (+0200)
Subject: uri-util: The uri_parse_host_name_dns() would segfault if the hostname_r parameter... 
X-Git-Tag: 2.3.0.rc1~3741
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f95afa9df14bee49d82baa3679fc94ef3a101d92;p=thirdparty%2Fdovecot%2Fcore.git

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

diff --git a/src/lib/uri-util.c b/src/lib/uri-util.c
index bfdc07fc14..b3e33b9c20 100644
--- 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;
 }