fix redirect on non linux OS

Author: ginuerzh

redirect.go

@@ -1,4 +1,4 @@
-// +build !windows
+// +build linux
 
 package gost
 

redirect_other.go

@@ -0,0 +1,57 @@
+// +build !linux
+
+package gost
+
+import (
+	"errors"
+	"net"
+
+	"github.com/go-log/log"
+)
+
+type tcpRedirectHandler struct {
+	options *HandlerOptions
+}
+
+// TCPRedirectHandler creates a server Handler for TCP redirect server.
+func TCPRedirectHandler(opts ...HandlerOption) Handler {
+	h := &tcpRedirectHandler{
+		options: &HandlerOptions{
+			Chain: new(Chain),
+		},
+	}
+	for _, opt := range opts {
+		opt(h.options)
+	}
+	return h
+}
+
+func (h *tcpRedirectHandler) Init(options ...HandlerOption) {
+	log.Log("[red-tcp] TCP redirect is not available on the Windows platform")
+}
+
+func (h *tcpRedirectHandler) Handle(c net.Conn) {
+	log.Log("[red-tcp] TCP redirect is not available on the Windows platform")
+	c.Close()
+}
+
+type udpRedirectHandler struct {
+}
+
+// UDPRedirectHandler creates a server Handler for UDP transparent server.
+func UDPRedirectHandler(opts ...HandlerOption) Handler {
+	return &udpRedirectHandler{}
+}
+
+func (h *udpRedirectHandler) Init(options ...HandlerOption) {
+}
+
+func (h *udpRedirectHandler) Handle(conn net.Conn) {
+	log.Log("[red-udp] UDP redirect is not available on the Windows platform")
+	conn.Close()
+}
+
+// UDPRedirectListener creates a Listener for UDP transparent proxy server.
+func UDPRedirectListener(addr string, cfg *UDPListenConfig) (Listener, error) {
+	return nil, errors.New("UDP redirect is not available on the Windows platform")
+}