Merged revisions 59195 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r59195 | file | 2007-03-23 21:39:44 -0400 (Fri, 23 Mar 2007) | 10 lines

Merged revisions 59194 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.2

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r59194 | file | 2007-03-23 21:35:49 -0400 (Fri, 23 Mar 2007) | 2 lines

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

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@59196 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -15285,8 +15285,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 			   respond appropriately  */
 			ast_set_flag(req, SIP_PKT_IGNORE);
 			append_history(p, "Ignore", "Ignoring this retransmit\n");
-		}
-	
+		} 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);
@@ -15300,6 +15299,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 					extract_uri(p, req);
 				handle_response(p, respid, e + len, req, seqno);
 			}
+		}
 		return 0;
 	}