From 7394b1efbd0dbd071ca3d05fc13cdb5b6677e965 Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin.shar@gmail.com>
Date: Mon, 20 May 2024 08:50:05 +0200
Subject: [PATCH] pjsip_find_msg: Log warning if Content-Length field not found
 (#3960)

---
 pjsip/src/pjsip/sip_parser.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pjsip/src/pjsip/sip_parser.c b/pjsip/src/pjsip/sip_parser.c
index 24966b6586..54ba6dbba1 100644
--- a/pjsip/src/pjsip/sip_parser.c
+++ b/pjsip/src/pjsip/sip_parser.c
@@ -937,6 +937,8 @@ PJ_DEF(pj_status_t) pjsip_find_msg( const char *buf, pj_size_t size,
 
     /* Found Content-Length? */
     if (content_length == -1) {
+        /* As per RFC3261 7.4.2, 7.5, 20.14, Content-Length is mandatory over TCP. */
+        PJ_LOG(2, (THIS_FILE, "Field Content-Length not found!"));
         return status;
     }