From c6c5cb93ce6fdf8989fcc7b8e12e817fb46aea08 Mon Sep 17 00:00:00 2001
From: Leonid Evdokimov <leon@darkk.net.ru>
Date: Sun, 3 Apr 2016 18:06:16 +0300
Subject: [PATCH] Mark client socket non-blocking

Avoiding to do so caused splice() to block during write.

AFAIK, it does not affect bufferevent pump, but I may be wrong.
---
 redsocks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/redsocks.c b/redsocks.c
index 0c038eca..3a869dff 100644
--- a/redsocks.c
+++ b/redsocks.c
@@ -1106,6 +1106,12 @@ static void redsocks_accept_client(int fd, short what, void *_arg)
 		goto fail;
 	}
 
+	error = fcntl_nonblock(client_fd);
+	if (error) {
+		log_errno(LOG_ERR, "fcntl");
+		goto fail;
+	}
+
 	if (apply_tcp_keepalive(client_fd))
 		goto fail;