Based on the boundary found move over the correct amount.

(closes issue #11750)
Reported by: tasker


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@98934 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -4864,10 +4864,13 @@ static int find_sdp(struct sip_request *req)
 		return 0;
 
 	/* if there is no boundary marker, it's invalid */
-	if (!(search = strcasestr(content_type, ";boundary=")) && (!(search = strcasestr(content_type, "; boundary="))))
+	if ((search = strcasestr(content_type, ";boundary=")))
+		search += 10;
+	else if ((search = strcasestr(content_type, "; boundary=")))
+		search += 11;
+	else
 		return 0;
 
-	search += 10;
 	if (ast_strlen_zero(search))
 		return 0;