diff options
Diffstat (limited to 'vendor/golang.org/x/net/ipv4/control_bsd.go')
-rw-r--r-- | vendor/golang.org/x/net/ipv4/control_bsd.go | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv4/control_bsd.go b/vendor/golang.org/x/net/ipv4/control_bsd.go new file mode 100644 index 0000000..b7385df --- /dev/null +++ b/vendor/golang.org/x/net/ipv4/control_bsd.go @@ -0,0 +1,44 @@ +// 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. + +//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd +// +build aix darwin dragonfly freebsd netbsd openbsd + +package ipv4 + +import ( + "net" + "syscall" + "unsafe" + + "golang.org/x/net/internal/iana" + "golang.org/x/net/internal/socket" + + "golang.org/x/sys/unix" +) + +func marshalDst(b []byte, cm *ControlMessage) []byte { + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIP, unix.IP_RECVDSTADDR, net.IPv4len) + return m.Next(net.IPv4len) +} + +func parseDst(cm *ControlMessage, b []byte) { + if len(cm.Dst) < net.IPv4len { + cm.Dst = make(net.IP, net.IPv4len) + } + copy(cm.Dst, b[:net.IPv4len]) +} + +func marshalInterface(b []byte, cm *ControlMessage) []byte { + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIP, sockoptReceiveInterface, syscall.SizeofSockaddrDatalink) + return m.Next(syscall.SizeofSockaddrDatalink) +} + +func parseInterface(cm *ControlMessage, b []byte) { + var sadl syscall.SockaddrDatalink + copy((*[unsafe.Sizeof(sadl)]byte)(unsafe.Pointer(&sadl))[:], b) + cm.IfIndex = int(sadl.Index) +} |