- (djm) [channels.c misc.c misc.h sshd.c] add missing setsockopt() to

   set IPV6_V6ONLY for local forwarding with GatwayPorts=yes. Unify
   setting IPV6_V6ONLY behind a new function misc.c:sock_set_v6only()
   report and fix from jan.kratochvil AT redhat.com

1 files changed, 11 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index 143dbf0e2..4dc152310 100644
--- a/misc.c
+++ b/misc.c
@@ -849,3 +849,14 @@ ms_to_timeval(struct timeval *tv, int ms)
         tv->tv_usec = (ms % 1000) * 1000;
 }
 
+void
+sock_set_v6only(int s)
+{
+#ifdef IPV6_V6ONLY
+        int on = 1;
+
+        debug3("%s: set socket %d IPV6_V6ONLY", __func__, s);
+        if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) == -1)
+                error("setsockopt IPV6_V6ONLY: %s", strerror(errno));
+#endif
+}