From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 30 Jul 2009 20:40:50 +0000 (+0000)
Subject: Set the SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER flag, and explain why.
X-Git-Tag: release-2.0.3-alpha~144
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d5a3f1f11685af21bd38ffceddcb949b7997cd46;p=libevent

Set the SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER flag, and explain why.

svn:r1394
---

diff --git a/bufferevent_openssl.c b/bufferevent_openssl.c
index 5347b03e..dd0b4edc 100644
--- a/bufferevent_openssl.c
+++ b/bufferevent_openssl.c
@@ -819,6 +819,7 @@ be_openssl_handshakecb(struct bufferevent *bev_base, void *ctx)
 	struct bufferevent_openssl *bev_ssl = ctx;
 	do_handshake(bev_ssl);
 }
+
 static void
 be_openssl_handshakeeventcb(evutil_socket_t fd, short what, void *ptr)
 {
@@ -1028,6 +1029,10 @@ bufferevent_openssl_new_impl(struct event_base *base,
 		&bufferevent_ops_openssl, tmp_options) < 0)
 		goto err;
 
+	/* Don't explode if we decide to realloc a chunk we're writing from in
+	 * the output buffer. */
+	SSL_set_mode(ssl, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
+
 	bev_ssl->underlying = underlying;
 	bev_ssl->ssl = ssl;