From 79175b7915bef3f3d0572672b45fa89e3099204f Mon Sep 17 00:00:00 2001
From: bluhm <>
Date: Sat, 18 Jul 2015 22:15:09 +0000
Subject: Set SSL_MODE_ENABLE_PARTIAL_WRITE and
 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER in libtls.  This gives tls_write() a
 similar short write semantics as write(2).  So implementing daemons with
 libevent buffers will be easier and workarounds in syslogd and httpd can be
 removed. OK tedu@ beck@ reyk@

---
 src/lib/libtls/tls.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib/libtls/tls.c b/src/lib/libtls/tls.c
index f4bd108dac..246e025e7a 100644
--- a/src/lib/libtls/tls.c
+++ b/src/lib/libtls/tls.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls.c,v 1.11 2015/04/15 16:08:43 jsing Exp $ */
+/* $OpenBSD: tls.c,v 1.12 2015/07/18 22:15:09 bluhm Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -183,6 +183,9 @@ err:
 int
 tls_configure_ssl(struct tls *ctx)
 {
+	SSL_CTX_set_mode(ctx->ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
+	SSL_CTX_set_mode(ctx->ssl_ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
+
 	SSL_CTX_set_options(ctx->ssl_ctx, SSL_OP_NO_SSLv2);
 	SSL_CTX_set_options(ctx->ssl_ctx, SSL_OP_NO_SSLv3);
 
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