From aeffe74a27fbe83f9f3da2672e2b62efe1255bf0 Mon Sep 17 00:00:00 2001
From: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
Date: Wed, 18 Jan 2017 10:48:50 +0100
Subject: [PATCH] Avoid calling close when polling a UDP peer without socket

(cherry picked from commit e4b9b37ccf8495be674bc15cf0bf9d76fe94e6be)
---
 drivers/unix/packet_peer_udp_posix.cpp       | 4 ++++
 platform/windows/packet_peer_udp_winsock.cpp | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/unix/packet_peer_udp_posix.cpp b/drivers/unix/packet_peer_udp_posix.cpp
index 04be55d6c6a..faabe902f9c 100644
--- a/drivers/unix/packet_peer_udp_posix.cpp
+++ b/drivers/unix/packet_peer_udp_posix.cpp
@@ -154,6 +154,10 @@ Error PacketPeerUDPPosix::wait() {
 
 Error PacketPeerUDPPosix::_poll(bool p_wait) {
 
+	if (sockfd == -1) {
+		return FAILED;
+	}
+
 	struct sockaddr_storage from = { 0 };
 	socklen_t len = sizeof(struct sockaddr_storage);
 	int ret;
diff --git a/platform/windows/packet_peer_udp_winsock.cpp b/platform/windows/packet_peer_udp_winsock.cpp
index d8707709f52..1dc23fcab95 100644
--- a/platform/windows/packet_peer_udp_winsock.cpp
+++ b/platform/windows/packet_peer_udp_winsock.cpp
@@ -149,6 +149,10 @@ Error PacketPeerUDPWinsock::wait() {
 }
 Error PacketPeerUDPWinsock::_poll(bool p_wait) {
 
+	if (sockfd == -1) {
+		return FAILED;
+	}
+
 	_set_blocking(p_wait);
 
 	struct sockaddr_storage from = { 0 };