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 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/vendor/golang.org/x/net/ipv4/control_bsd.go b/vendor/golang.org/x/net/ipv4/control_bsd.go index 3f27f9945..77e7ad5be 100644 --- a/vendor/golang.org/x/net/ipv4/control_bsd.go +++ b/vendor/golang.org/x/net/ipv4/control_bsd.go @@ -12,26 +12,26 @@ import ( "unsafe" "golang.org/x/net/internal/iana" + "golang.org/x/net/internal/socket" ) func marshalDst(b []byte, cm *ControlMessage) []byte { - m := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIP - m.Type = sysIP_RECVDSTADDR - m.SetLen(syscall.CmsgLen(net.IPv4len)) - return b[syscall.CmsgSpace(net.IPv4len):] + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIP, sysIP_RECVDSTADDR, net.IPv4len) + return m.Next(net.IPv4len) } func parseDst(cm *ControlMessage, b []byte) { - cm.Dst = b[:net.IPv4len] + 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 := (*syscall.Cmsghdr)(unsafe.Pointer(&b[0])) - m.Level = iana.ProtocolIP - m.Type = sysIP_RECVIF - m.SetLen(syscall.CmsgLen(syscall.SizeofSockaddrDatalink)) - return b[syscall.CmsgSpace(syscall.SizeofSockaddrDatalink):] + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIP, sysIP_RECVIF, syscall.SizeofSockaddrDatalink) + return m.Next(syscall.SizeofSockaddrDatalink) } func parseInterface(cm *ControlMessage, b []byte) { |