无多路复用版本

shadow/client.go

@@ -59,6 +59,40 @@ func handlerClient(conn net.Conn, serverAddress string, fakeAddressSNI string) {
 	dial.NetConn().SetDeadline(time.Now())
 	dial.NetConn().SetDeadline(time.Time{})
 
-	go io.Copy(conn, dial.NetConn())
-	go io.Copy(dial.NetConn(), conn)
+	p := &PackAppData{Conn: dial.NetConn()}
+
+	go io.Copy(conn, p)
+	go io.Copy(p, conn)
+}
+
+func MyCopy(src io.ReadWriteCloser, dst io.ReadWriteCloser) {
+	buf := make([]byte, 32*1024)
+	for {
+		nr, er := src.Read(buf)
+		if nr > 0 {
+			nw, ew := dst.Write(buf[0:nr])
+			if nw < 0 || nr < nw {
+				nw = 0
+				if ew == nil {
+					fmt.Printf("err1:\n")
+				}
+			}
+			if ew != nil {
+				fmt.Printf("err2:%v\n", ew)
+				break
+			}
+			if nr != nw {
+				fmt.Printf("nr != nw \n")
+				break
+			}
+		}
+		if er != nil {
+			if er != io.EOF {
+				fmt.Printf("err3:%v\n", er)
+			} else {
+				fmt.Println("EOF")
+			}
+			break
+		}
+	}
 }