From 952a5e6dd979d5bf213ee14eac0e36f40563a1f4 Mon Sep 17 00:00:00 2001
From: Mark Spencer <markster@digium.com>
Date: Tue, 14 Sep 2004 23:04:39 +0000
Subject: [PATCH] Consider both tags as possible matches (bug #2422)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3778 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_sip.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 57edf16489..d8b6dfc895 100755
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -2392,10 +2392,11 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
 	struct sip_pvt *p;
 	char *callid;
 	char tmp[256] = "";
+	char tmp2[256] = "";
 	char iabuf[INET_ADDRSTRLEN];
 	char *cmd;
 	char *tag = "", *c;
-	int themisfrom;
+	char *tag2 = ""
 	callid = get_header(req, "Call-ID");
 
 	if (pedanticsipchecking) {
@@ -2412,15 +2413,7 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
 		c = strchr(tmp, ' ');
 		if (c)
 			*c = '\0';
-		if (!strcasecmp(cmd, "SIP/2.0")) {
-			themisfrom = 0;
-		} else {
-			themisfrom = 1;
-		}
-		if (themisfrom)
-			strncpy(tmp, get_header(req, "From"), sizeof(tmp) - 1);
-		else
-			strncpy(tmp, get_header(req, "To"), sizeof(tmp) - 1);
+		strncpy(tmp, get_header(req, "From"), sizeof(tmp) - 1);
 		tag = strstr(tmp, "tag=");
 		if (tag) {
 			tag += 4;
@@ -2428,6 +2421,14 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
 			if (c)
 				*c = '\0';
 		}
+		strncpy(tmp2, get_header(req, "To"), sizeof(tmp2) - 1);
+		tag2 = strstr(tmp2, "tag=");
+		if (tag2) {
+			tag2 += 4;
+			c = strchr(tag2, ';');
+			if (c)
+				*c = '\0';
+		}
 			
 	}
 		
@@ -2439,7 +2440,7 @@ static struct sip_pvt *find_call(struct sip_request *req, struct sockaddr_in *si
 	p = iflist;
 	while(p) {
 		if (!strcmp(p->callid, callid) && 
-			(!pedanticsipchecking || !tag || ast_strlen_zero(p->theirtag) || !strcmp(p->theirtag, tag))) {
+			(!pedanticsipchecking || !tag || !tag2 || ast_strlen_zero(p->theirtag) || !strcmp(p->theirtag, tag) || !strcmp(p->theirtag, tag2))) {
 			/* Found the call */
 			ast_mutex_lock(&p->lock);
 			ast_mutex_unlock(&iflock);
-- 
2.47.2