[openssh-commits] [openssh] 04/05: upstream commit

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djm pushed a commit to branch master
in repository openssh.

commit d8f391caef62378463a0e6b36f940170dadfe605
Author: dtucker at openbsd.org <dtucker at openbsd.org>
Date:   Fri Apr 10 05:16:50 2015 +0000

    upstream commit
    
    Don't send hostkey advertisments
     (hostkeys-00 at openssh.com) to current versions of Tera Term as they can't
     handle them.  Newer versions should be OK.  Patch from Bryan Drewery and
     IWAMOTO Kouichi, ok djm@
---
 compat.c | 13 ++++++++++++-
 compat.h |  3 ++-
 sshd.c   |  6 +++++-
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/compat.c b/compat.c
index 2498168..0934de9 100644
--- a/compat.c
+++ b/compat.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: compat.c,v 1.88 2015/04/07 23:00:42 djm Exp $ */
+/* $OpenBSD: compat.c,v 1.89 2015/04/10 05:16:50 dtucker Exp $ */
 /*
  * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl.  All rights reserved.
  *
@@ -167,6 +167,17 @@ compat_datafellows(const char *version)
 					SSH_BUG_SCANNER },
 		{ "Probe-*",
 					SSH_BUG_PROBE },
+		{ "TeraTerm SSH*,"
+		  "TTSSH/1.5.*,"
+		  "TTSSH/2.1*,"
+		  "TTSSH/2.2*,"
+		  "TTSSH/2.3*,"
+		  "TTSSH/2.4*,"
+		  "TTSSH/2.5*,"
+		  "TTSSH/2.6*,"
+		  "TTSSH/2.70*,"
+		  "TTSSH/2.71*,"
+		  "TTSSH/2.72*",	SSH_BUG_HOSTKEYS },
 		{ NULL,			0 }
 	};
 
diff --git a/compat.h b/compat.h
index af2f007..83507f0 100644
--- a/compat.h
+++ b/compat.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: compat.h,v 1.46 2015/01/19 20:20:20 markus Exp $ */
+/* $OpenBSD: compat.h,v 1.47 2015/04/10 05:16:50 dtucker Exp $ */
 
 /*
  * Copyright (c) 1999, 2000, 2001 Markus Friedl.  All rights reserved.
@@ -60,6 +60,7 @@
 #define SSH_NEW_OPENSSH		0x04000000
 #define SSH_BUG_DYNAMIC_RPORT	0x08000000
 #define SSH_BUG_CURVE25519PAD	0x10000000
+#define SSH_BUG_HOSTKEYS	0x20000000
 
 void     enable_compat13(void);
 void     enable_compat20(void);
diff --git a/sshd.c b/sshd.c
index 6aa17fa..60b0cd4 100644
--- a/sshd.c
+++ b/sshd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshd.c,v 1.445 2015/03/31 22:55:24 djm Exp $ */
+/* $OpenBSD: sshd.c,v 1.446 2015/04/10 05:16:50 dtucker Exp $ */
 /*
  * Author: Tatu Ylonen <ylo at cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo at cs.hut.fi>, Espoo, Finland
@@ -928,6 +928,10 @@ notify_hostkeys(struct ssh *ssh)
 	int i, nkeys, r;
 	char *fp;
 
+	/* Some clients cannot cope with the hostkeys message, skip those. */
+	if (datafellows & SSH_BUG_HOSTKEYS)
+		return;
+
 	if ((buf = sshbuf_new()) == NULL)
 		fatal("%s: sshbuf_new", __func__);
 	for (i = nkeys = 0; i < options.num_host_key_files; i++) {

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