[sr-dev] git:master:e4f3849f: drouting: fix crush for empty username in ruri

[Henning Westerholt]

Module: kamailio
Branch: master
Commit: e4f3849f35ae556e317c365d56b14212e48d1dab
URL: https://github.com/kamailio/kamailio/commit/e4f3849f35ae556e317c365d56b14212e48d1dab

Author: Dmitri Savolainen <savolainen at erinaco.ru>
Committer: Henning Westerholt <henningw at users.noreply.github.com>
Date: 2018-08-23T19:59:30+02:00

drouting: fix crush for empty username in ruri

 - uri like sip:@host crushed kamailio

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Modified: src/modules/drouting/prefix_tree.c

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Diff:  https://github.com/kamailio/kamailio/commit/e4f3849f35ae556e317c365d56b14212e48d1dab.diff
Patch: https://github.com/kamailio/kamailio/commit/e4f3849f35ae556e317c365d56b14212e48d1dab.patch

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diff --git a/src/modules/drouting/prefix_tree.c b/src/modules/drouting/prefix_tree.c
index 099c402dec..9ce8d04bc6 100644
--- a/src/modules/drouting/prefix_tree.c
+++ b/src/modules/drouting/prefix_tree.c
@@ -98,7 +98,7 @@ rt_info_t *get_prefix(ptree_t *ptree, str *prefix, unsigned int rgid)
 
 	if(NULL == ptree)
 		goto err_exit;
-	if(NULL == prefix)
+	if(NULL == prefix || NULL == prefix->s)
 		goto err_exit;
 	tmp = prefix->s;
 	/* go the tree down to the last digit in the