1 files changed, 26 insertions, 0 deletions
diff --git a/src/net/hook.go b/src/net/hook.go
new file mode 100644
index 0000000..ea71803
--- /dev/null
+++ b/src/net/hook.go
@@ -0,0 +1,26 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net
+
+import (
+	"context"
+	"time"
+)
+
+var (
+	// if non-nil, overrides dialTCP.
+	testHookDialTCP func(ctx context.Context, net string, laddr, raddr *TCPAddr) (*TCPConn, error)
+
+	testHookHostsPath = "/etc/hosts"
+	testHookLookupIP  = func(
+		ctx context.Context,
+		fn func(context.Context, string, string) ([]IPAddr, error),
+		network string,
+		host string,
+	) ([]IPAddr, error) {
+		return fn(ctx, network, host)
+	}
+	testHookSetKeepAlive = func(time.Duration) {}
+)