[chore] remove vendor

1 files changed, 0 insertions, 117 deletions

diff --git a/vendor/golang.org/x/net/ipv4/packet.go b/vendor/golang.org/x/net/ipv4/packet.go
deleted file mode 100644
index 7d784e06d..000000000
--- a/vendor/golang.org/x/net/ipv4/packet.go
+++ /dev/null
@@ -1,117 +0,0 @@
-// 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 ReadFrom and WriteTo methods of RawConn
-// are not implemented.
-
-// A packetHandler represents the IPv4 datagram handler.
-type packetHandler struct {
-	*net.IPConn
-	*socket.Conn
-	rawOpt
-}
-
-func (c *packetHandler) ok() bool { return c != nil && c.IPConn != nil && c.Conn != nil }
-
-// ReadFrom reads an IPv4 datagram from the endpoint c, copying the
-// datagram into b. It returns the received datagram as the IPv4
-// header h, the payload p and the control message cm.
-func (c *packetHandler) ReadFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
-	if !c.ok() {
-		return nil, nil, nil, errInvalidConn
-	}
-	c.rawOpt.RLock()
-	m := socket.Message{
-		Buffers: [][]byte{b},
-		OOB:     NewControlMessage(c.rawOpt.cflags),
-	}
-	c.rawOpt.RUnlock()
-	if err := c.RecvMsg(&m, 0); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	var hs []byte
-	if hs, p, err = slicePacket(b[:m.N]); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	if h, err = ParseHeader(hs); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	if m.NN > 0 {
-		if compatFreeBSD32 {
-			adjustFreeBSD32(&m)
-		}
-		cm = new(ControlMessage)
-		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
-			return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-		}
-	}
-	if src, ok := m.Addr.(*net.IPAddr); ok && cm != nil {
-		cm.Src = src.IP
-	}
-	return
-}
-
-func slicePacket(b []byte) (h, p []byte, err error) {
-	if len(b) < HeaderLen {
-		return nil, nil, errHeaderTooShort
-	}
-	hdrlen := int(b[0]&0x0f) << 2
-	return b[:hdrlen], b[hdrlen:], nil
-}
-
-// WriteTo writes an IPv4 datagram through the endpoint c, copying the
-// datagram from the IPv4 header h and the payload p. The control
-// message cm allows the datagram path and the outgoing interface to be
-// specified.  Currently only Darwin and Linux support this. The cm
-// may be nil if control of the outgoing datagram is not required.
-//
-// The IPv4 header h must contain appropriate fields that include:
-//
-//	Version       = <must be specified>
-//	Len           = <must be specified>
-//	TOS           = <must be specified>
-//	TotalLen      = <must be specified>
-//	ID            = platform sets an appropriate value if ID is zero
-//	FragOff       = <must be specified>
-//	TTL           = <must be specified>
-//	Protocol      = <must be specified>
-//	Checksum      = platform sets an appropriate value if Checksum is zero
-//	Src           = platform sets an appropriate value if Src is nil
-//	Dst           = <must be specified>
-//	Options       = optional
-func (c *packetHandler) WriteTo(h *Header, p []byte, cm *ControlMessage) error {
-	if !c.ok() {
-		return errInvalidConn
-	}
-	m := socket.Message{
-		OOB: cm.Marshal(),
-	}
-	wh, err := h.Marshal()
-	if err != nil {
-		return err
-	}
-	m.Buffers = [][]byte{wh, p}
-	dst := new(net.IPAddr)
-	if cm != nil {
-		if ip := cm.Dst.To4(); ip != nil {
-			dst.IP = ip
-		}
-	}
-	if dst.IP == nil {
-		dst.IP = h.Dst
-	}
-	m.Addr = dst
-	if err := c.SendMsg(&m, 0); err != nil {
-		return &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Addr: opAddr(dst), Err: err}
-	}
-	return nil
-}