From 118331207b8404904184897d81c1ec77fe0fb5c4 Mon Sep 17 00:00:00 2001
From: fbernon <fbernon>
Date: Thu, 9 Aug 2007 18:34:03 +0000
Subject: [PATCH] udp.c: Fix for bug #20503 : IGMP Improvement. Enable to
 receive a multicast packet on a udp pcb binded on an netif's IP address, and
 not on "any".

---
 CHANGELOG      | 4 ++++
 src/core/udp.c | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index 96b8657f..af84fc97 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -256,6 +256,10 @@ HISTORY
 
   ++ Bug fixes:
 
+  2007-08-09 Frédéric Bernon, Bill Florac
+  * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
+    packet on a udp pcb binded on an netif's IP address, and not on "any".
+
   2007-08-09 Frédéric Bernon, Bill Florac
   * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
     This is mainly on using lookup/lookfor, and some coding styles...
diff --git a/src/core/udp.c b/src/core/udp.c
index e187a52a..8b33ec7c 100644
--- a/src/core/udp.c
+++ b/src/core/udp.c
@@ -154,6 +154,9 @@ udp_input(struct pbuf *p, struct netif *inp)
     if ((pcb->local_port == dest) &&
         (ip_addr_isany(&pcb->local_ip) ||
          ip_addr_cmp(&(pcb->local_ip), &(iphdr->dest)) || 
+#if LWIP_IGMP
+         ip_addr_ismulticast(&(iphdr->dest)) ||
+#endif /* LWIP_IGMP */
          ip_addr_isbroadcast(&(iphdr->dest), inp))) {
       local_match = 1;
       if ((uncon_pcb == NULL) &&