From 4d2694d74eb56ea83ad83be56c824b3ac845a507 Mon Sep 17 00:00:00 2001
From: Lee Salzman <lsalzman@gmail.com>
Date: Wed, 31 Dec 2014 00:24:29 +0200
Subject: [PATCH] fix ENET_SOCKOPT_NONBLOCK when value is 0

---
 unix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unix.c b/unix.c
index 5e7c731..431d19c 100644
--- a/unix.c
+++ b/unix.c
@@ -246,7 +246,7 @@ enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
     {
         case ENET_SOCKOPT_NONBLOCK:
 #ifdef HAS_FCNTL
-            result = fcntl (socket, F_SETFL, O_NONBLOCK | fcntl (socket, F_GETFL));
+            result = fcntl (socket, F_SETFL, (value ? O_NONBLOCK : 0) | (fcntl (socket, F_GETFL) & ~O_NONBLOCK));
 #else
             result = ioctl (socket, FIONBIO, & value);
 #endif