From: Joshua Colp <jcolp@digium.com>
Date: Sat, 24 Mar 2007 01:35:49 +0000 (+0000)
Subject: Only try to handle a response if it has a response code. (ASA-2007-011)
X-Git-Tag: 1.2.18~56
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9593ae4269ab58ee57ebcaa9373eb8851f15186e;p=thirdparty%2Fasterisk.git

Only try to handle a response if it has a response code. (ASA-2007-011)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@59194 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 8946bab589..c79e7ab65d 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -11295,16 +11295,16 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 			/* ignore means "don't do anything with it" but still have to 
 			   respond appropriately  */
 			ignore=1;
-		}
-	
-		e = ast_skip_blanks(e);
-		if (sscanf(e, "%d %n", &respid, &len) != 1) {
-			ast_log(LOG_WARNING, "Invalid response: '%s'\n", e);
-		} else {
-			/* More SIP ridiculousness, we have to ignore bogus contacts in 100 etc responses */
-			if ((respid == 200) || ((respid >= 300) && (respid <= 399)))
-				extract_uri(p, req);
-			handle_response(p, respid, e + len, req, ignore, seqno);
+		} else if (e) {
+			e = ast_skip_blanks(e);
+			if (sscanf(e, "%d %n", &respid, &len) != 1) {
+				ast_log(LOG_WARNING, "Invalid response: '%s'\n", e);
+			} else {
+				/* More SIP ridiculousness, we have to ignore bogus contacts in 100 etc responses */
+				if ((respid == 200) || ((respid >= 300) && (respid <= 399)))
+					extract_uri(p, req);
+				handle_response(p, respid, e + len, req, ignore, seqno);
+			}
 		}
 		return 0;
 	}