| // Copyright 2012 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 ipv4 |
| |
| import ( |
| "net" |
| |
| "golang.org/x/net/internal/socket" |
| ) |
| |
| // BUG(mikio): On Windows, the ControlMessage for ReadFrom and WriteTo |
| // methods of PacketConn is not implemented. |
| |
| // A payloadHandler represents the IPv4 datagram payload handler. |
| type payloadHandler struct { |
| net.PacketConn |
| *socket.Conn |
| rawOpt |
| } |
| |
| func (c *payloadHandler) ok() bool { return c != nil && c.PacketConn != nil && c.Conn != nil } |