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-rw-r--r--lib/ChangeLog4
-rw-r--r--lib/sockopt.c14
2 files changed, 13 insertions, 5 deletions
diff --git a/lib/ChangeLog b/lib/ChangeLog
index f5145321..18ac2214 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-07 Yar Tikhiy <yar@comp.chem.msu.su>
+
+ * sockopt.c: Add support for BSD style ifindex in ip_mreq.
+
2005-05-06 Paul Jakma <paul@dishone.st>
* (general) extern and static'ification of functions in code and
diff --git a/lib/sockopt.c b/lib/sockopt.c
index 81db88d9..655ecdc0 100644
--- a/lib/sockopt.c
+++ b/lib/sockopt.c
@@ -171,8 +171,7 @@ setsockopt_multicast_ipv4(int sock,
unsigned int ifindex)
{
- /* Linux 2.2.0 and up */
-#if defined(GNU_LINUX) && LINUX_VERSION_CODE > 131584
+#ifdef HAVE_STRUCT_IP_MREQN_IMR_IFINDEX
/* This is better because it uses ifindex directly */
struct ip_mreqn mreqn;
@@ -212,11 +211,16 @@ setsockopt_multicast_ipv4(int sock,
struct in_addr m;
struct ip_mreq mreq;
+#ifdef HAVE_BSD_STRUCT_IP_MREQ_HACK
+ if (ifindex)
+ m.s_addr = htonl(ifindex);
+ else
+#endif
+ m = if_addr;
+
switch (optname)
{
case IP_MULTICAST_IF:
- m = if_addr;
-
return setsockopt (sock, IPPROTO_IP, optname, (void *)&m, sizeof(m));
break;
@@ -224,7 +228,7 @@ setsockopt_multicast_ipv4(int sock,
case IP_DROP_MEMBERSHIP:
memset (&mreq, 0, sizeof(mreq));
mreq.imr_multiaddr.s_addr = mcast_addr;
- mreq.imr_interface = if_addr;
+ mreq.imr_interface = m;
return setsockopt (sock,
IPPROTO_IP,