Add DebianBanner server configuration option

Setting this to "no" causes sshd to omit the Debian revision from its
initial protocol handshake, for those scared by package-versioning.patch.

Bug-Debian: http://bugs.debian.org/562048
Forwarded: not-needed
Last-Update: 2017-10-04

Patch-Name: debian-banner.patch

1 files changed, 2 insertions, 1 deletions

diff --git a/sshd.c b/sshd.c
index eccf81bbe..a5a1193df 100644
--- a/sshd.c
+++ b/sshd.c
@@ -378,7 +378,8 @@ sshd_exchange_identification(struct ssh *ssh, int sock_in, int sock_out)
         char remote_version[256];       /* Must be at least as big as buf. */
 
         xasprintf(&server_version_string, "SSH-%d.%d-%.100s%s%s\r\n",
-            PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE,
+            PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2,
+            options.debian_banner ? SSH_RELEASE : SSH_RELEASE_MINIMUM,
             *options.version_addendum == '\0' ? "" : " ",
             options.version_addendum);