[sr-dev] git:4.1: pv: safety check for PAI header parsed structure

[Daniel-Constantin Mierla]

Module: sip-router
Branch: 4.1
Commit: 7bdaca008e1bddbe9ab4db9d70e835ba45f6a5ff
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=7bdaca008e1bddbe9ab4db9d70e835ba45f6a5ff

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date:   Thu May 29 17:06:13 2014 +0200

pv: safety check for PAI header parsed structure

- reported by Igor Potjevlesch

(cherry picked from commit e633ca6b7e748a77825d3208e86bf9bce18944a5)

---

 modules/pv/pv_core.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/modules/pv/pv_core.c b/modules/pv/pv_core.c
index 3f48830..59a3539 100644
--- a/modules/pv/pv_core.c
+++ b/modules/pv/pv_core.c
@@ -991,6 +991,11 @@ int pv_get_pai(struct sip_msg *msg, pv_param_t *param,
 	}
 
 	pai_body = get_pai(msg);
+	if(pai_body==NULL || pai_body->id==NULL)
+	{
+		LM_DBG("no P-Asserted-Identity header or empty body\n");
+		return pv_get_null(msg, param, res);
+	}
 	pai_uri = &pai_body->id[0];
 	cur_id = 0;
 	i = 0;