# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1471533381 -7200
# Node ID a4d5eec36a175b3c6d7ddc94a40c3e6d7a77af5e
# Parent  ce20546d7714a1fb2999ae34ea85b1ca9a4d0443
net.server_epoll: Prevent invalid FDs from being added to epoll

diff -r ce20546d7714 -r a4d5eec36a17 net/server_epoll.lua
--- a/net/server_epoll.lua	Thu Aug 18 17:15:52 2016 +0200
+++ b/net/server_epoll.lua	Thu Aug 18 17:16:21 2016 +0200
@@ -246,6 +246,10 @@
 		return true;
 	end
 	local fd = self:getfd();
+	if fd < 0 then
+		self._wantread, self._wantwrite = nil, nil;
+		return nil, "invalid fd";
+	end
 	local op = "mod";
 	if not flags then
 		op = "del";