From 4903eb4b7461081c9a55cff3a4075fa3311e5e23 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Fri, 21 Jun 2002 16:20:44 +1000
Subject: [PATCH]  - (djm) Warn and disable compression on platforms which
 can't handle both    useprivilegeseparation=yes and compression=yes

---
 ChangeLog  |  4 +++-
 servconf.c | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index e19e8d6db..84212ea10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,8 @@
      Don't initialise compression buffers when compression=no in sshd_config;
      ok Niels@
   - ID sync for auth-passwd.c
+ - (djm) Warn and disable compression on platforms which can't handle both
+   useprivilegeseparation=yes and compression=yes
 
 20020620
  - (bal) Fixed AIX environment handling, use setpcred() instead of existing
@@ -994,4 +996,4 @@
  - (stevesk) entropy.c: typo in debug message
  - (djm) ssh-keygen -i needs seeded RNG; report from markus@
 
-$Id: ChangeLog,v 1.2236 2002/06/21 06:05:12 djm Exp $
+$Id: ChangeLog,v 1.2237 2002/06/21 06:20:44 djm Exp $
diff --git a/servconf.c b/servconf.c
index b7f941ab5..fb6332c31 100644
--- a/servconf.c
+++ b/servconf.c
@@ -256,6 +256,16 @@ fill_default_server_options(ServerOptions *options)
 	/* Turn privilege separation on by default */
 	if (use_privsep == -1)
 		use_privsep = 1;
+
+#if !defined(HAVE_MMAP) || !defined(MAP_ANON)
+	if (use_privsep && options->compression == 1) {
+		error("This platform does not support both privilege "
+		    "separation and compression");
+		error("Compression disabled");
+		options->compression = 0;
+	}
+#endif
+
 }
 
 /* Keyword tokens. */