cloudflared-mirror/vendor/github.com/lucas-clemente/quic-go/send_conn.go

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package quic
import (
"net"
)
// A sendConn allows sending using a simple Write() on a non-connected packet conn.
type sendConn interface {
Write([]byte) error
Close() error
LocalAddr() net.Addr
RemoteAddr() net.Addr
}
type sconn struct {
rawConn
remoteAddr net.Addr
info *packetInfo
oob []byte
}
var _ sendConn = &sconn{}
func newSendConn(c rawConn, remote net.Addr, info *packetInfo) sendConn {
return &sconn{
rawConn: c,
remoteAddr: remote,
info: info,
oob: info.OOB(),
}
}
func (c *sconn) Write(p []byte) error {
_, err := c.WritePacket(p, c.remoteAddr, c.oob)
return err
}
func (c *sconn) RemoteAddr() net.Addr {
return c.remoteAddr
}
func (c *sconn) LocalAddr() net.Addr {
addr := c.rawConn.LocalAddr()
if c.info != nil {
if udpAddr, ok := addr.(*net.UDPAddr); ok {
addrCopy := *udpAddr
addrCopy.IP = c.info.addr
addr = &addrCopy
}
}
return addr
}
type spconn struct {
net.PacketConn
remoteAddr net.Addr
}
var _ sendConn = &spconn{}
func newSendPconn(c net.PacketConn, remote net.Addr) sendConn {
return &spconn{PacketConn: c, remoteAddr: remote}
}
func (c *spconn) Write(p []byte) error {
_, err := c.WriteTo(p, c.remoteAddr)
return err
}
func (c *spconn) RemoteAddr() net.Addr {
return c.remoteAddr
}