From 4c5e5e3a1c438cb2e92535e3fabc458aa0d6deb3 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Wed, 14 Apr 1999 12:29:47 +0000
Subject: [PATCH] Multicasts once again: When using SO_BINDTODEVICE, don't
 specify IP address of the interface.

---
 sysdep/unix/io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index f5e3124c..7764d3df 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -422,16 +422,17 @@ sk_open(sock *s)
 	struct ip_mreq mreq_add;
 	ASSERT(s->iface);
 	set_inaddr(&mreq, s->iface->ip);
-	mreq_add.imr_interface = mreq;
 #ifdef SO_BINDTODEVICE
 	{
 	  struct ifreq ifr;
 	  strcpy(ifr.ifr_name, s->iface->name);
 	  if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr)) < 0)
 	    ERR("SO_BINDTODEVICE");
+	  mreq_add.imr_interface.s_addr = INADDR_ANY;
 	}
 #else
 #error Multicasts not supported on PtP devices		/* FIXME: Solve it somehow? */
+	mreq_add.imr_interface = mreq;
 #endif
 #endif
 	set_inaddr(&mreq_add.imr_multiaddr, s->daddr);