From 1aa89e25dd1c578b96dd67771e70174a7e62f8c7 Mon Sep 17 00:00:00 2001
From: Florian Zeitz <florob@babelmonkeys.de>
Date: Mon, 17 Sep 2012 16:26:24 +0200
Subject: [PATCH] Return 0 on reads where the SSL layer needs more data to
 proceed

---
 src/SSLSocket.m | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/SSLSocket.m b/src/SSLSocket.m
index 5354e5d..1a7d909 100644
--- a/src/SSLSocket.m
+++ b/src/SSLSocket.m
@@ -270,10 +270,14 @@ ssl_locking_callback(int mode, int n, const char *file, int line)
 		@throw e;
 	}
 
-	if ((ret = SSL_read(ssl, buffer, (int)length)) < 0)
+	if ((ret = SSL_read(ssl, buffer, (int)length)) < 0) {
+		if (SSL_get_error(ssl, ret) ==  SSL_ERROR_WANT_READ)
+			return 0;
+
 		@throw [OFReadFailedException exceptionWithClass: [self class]
 							  stream: self
 						 requestedLength: length];
+	}
 
 	if (ret == 0)
 		atEndOfStream = YES;