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authorMartin Mares <mj@ucw.cz>1999-04-12 17:27:56 +0200
committerMartin Mares <mj@ucw.cz>1999-04-12 17:27:56 +0200
commit61fb537c6273c50deb7d33f8af246993eab4bc4d (patch)
treeee108fce7337013453b6b9c5065ccd2e2b45acce /sysdep
parent5a99ade413b97a780758f5c8f927604ad6c8e57b (diff)
downloadbird-61fb537c6273c50deb7d33f8af246993eab4bc4d.tar
bird-61fb537c6273c50deb7d33f8af246993eab4bc4d.zip
Use `struct ip_mreqn' instead of `struct ip_mreq' for multicast
operations on 2.1/2.2 kernels. This allows passing of real interface indexes instead of referencing interfaces by their IP addresses which fails badly in presence of unnumbered interfaces. Unfortunately, this structure is not visible with glibc 2.0 as it provides its own networking headers :-( Both libc5 and glibc 2.1 should be OK.
Diffstat (limited to 'sysdep')
-rw-r--r--sysdep/autoconf.h.in3
-rw-r--r--sysdep/unix/io.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/sysdep/autoconf.h.in b/sysdep/autoconf.h.in
index ae4d6b6..6c76f1a 100644
--- a/sysdep/autoconf.h.in
+++ b/sysdep/autoconf.h.in
@@ -29,6 +29,9 @@
#undef TIME_T_IS_64BIT
#undef TIME_T_IS_SIGNED
+/* We have struct ip_mreqn in <netinet/in.h> */
+#undef HAVE_STRUCT_IP_MREQN
+
/* Protocols compiled in */
#undef CONFIG_STATIC
#undef CONFIG_RIP
diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index 69f8a5c..d98972c 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -407,8 +407,7 @@ sk_open(sock *s)
case SK_UDP_MC:
case SK_IP_MC:
{
-#ifdef HAVE_IP_MREQN
- /* FIXME: Define HAVE_IP_MREQN somewhere :) */
+#ifdef HAVE_STRUCT_IP_MREQN
struct ip_mreqn mreq;
#define mreq_add mreq
ASSERT(s->iface);