[SR-Dev] git:master: port from branch 1.5, r5802

[Henning Westerholt]

Module: sip-router
Branch: master
Commit: 643189177d93b5036beda2481457e079a451c512
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=643189177d93b5036beda2481457e079a451c512

Author: Henning Westerholt <henning.westerholt at 1und1.de>
Committer: Henning Westerholt <henning.westerholt at 1und1.de>
Date:   Thu Apr 23 13:45:56 2009 +0200

port from branch 1.5, r5802

fix crash when no content-length is present, related to bug #2753152

---

 modules_k/nathelper/nhelpr_funcs.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/modules_k/nathelper/nhelpr_funcs.c b/modules_k/nathelper/nhelpr_funcs.c
index 1df4c53..788153c 100644
--- a/modules_k/nathelper/nhelpr_funcs.c
+++ b/modules_k/nathelper/nhelpr_funcs.c
@@ -169,6 +169,11 @@ int extract_body(struct sip_msg *msg, str *body )
 	 * parcing as get_body() parsed all headers and Conten-Length
 	 * body header is automaticaly parsed when found.
 	 */
+	if (msg->content_length==0) {
+		LM_ERR("failed to get the content length in message\n");
+		goto error;
+	}
+
 	body->len = get_content_length(msg);
 	if (body->len==0) {
 		LM_ERR("message body has length zero\n");