upstream commit

don't include port number in tcpip-forward replies for
 requests that don't allocate a port; bz#2509 diagnosed by Ron Frederick ok
 markus

Upstream-ID: 77efad818addb61ec638b5a2362f1554e21a970a

1 files changed, 3 insertions, 2 deletions

diff --git a/serverloop.c b/serverloop.c
index 306ac36be..4d0c0edb1 100644
--- a/serverloop.c
+++ b/serverloop.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: serverloop.c,v 1.178 2015/02/20 22:17:21 djm Exp $ */
+/* $OpenBSD: serverloop.c,v 1.179 2015/11/28 06:41:03 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -1265,7 +1265,8 @@ server_input_global_request(int type, u_int32_t seq, void *ctxt)
                 free(fwd.listen_host);
                 if ((resp = sshbuf_new()) == NULL)
                         fatal("%s: sshbuf_new", __func__);
-                if ((r = sshbuf_put_u32(resp, allocated_listen_port)) != 0)
+                if (allocated_listen_port != 0 &&
+                    (r = sshbuf_put_u32(resp, allocated_listen_port)) != 0)
                         fatal("%s: sshbuf_put_u32: %s", __func__, ssh_err(r));
         } else if (strcmp(rtype, "cancel-tcpip-forward") == 0) {
                 struct Forward fwd;