upstream: move client/server SSH-* banners to buffers under

ssh->kex and factor out the banner exchange. This eliminates some common code
from the client and server.

Also be more strict about handling \r characters - these should only
be accepted immediately before \n (pointed out by Jann Horn).

Inspired by a patch from Markus Schmidt.
(lots of) feedback and ok markus@

OpenBSD-Commit-ID: 1cc7885487a6754f63641d7d3279b0941890275b

1 files changed, 4 insertions, 1 deletions

diff --git a/misc.h b/misc.h
index 2dd61dc32..47177d838 100644
--- a/misc.h
+++ b/misc.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.h,v 1.77 2018/12/07 04:36:09 dtucker Exp $ */
+/* $OpenBSD: misc.h,v 1.78 2018/12/27 03:25:25 djm Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -17,6 +17,7 @@
 
 #include <sys/time.h>
 #include <sys/types.h>
+#include <sys/socket.h>
 
 /* Data structure for representing a forwarding request. */
 struct Forward {
@@ -51,6 +52,8 @@ void	 set_nodelay(int);
 int      set_reuseaddr(int);
 char    *get_rdomain(int);
 int      set_rdomain(int, const char *);
+int      waitrfd(int, int *);
+int      timeout_connect(int, const struct sockaddr *, socklen_t, int *);
 int      a2port(const char *);
 int      a2tun(const char *, int *);
 char    *put_host_port(const char *, u_short);