status-go/vendor/github.com/anacrolix/mmsg/socket/msghdr_bsd.go

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2022-03-10 09:44:48 +00:00
// Copyright 2017 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.
// +build darwin dragonfly freebsd netbsd openbsd
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
h.setIov(vs)
if len(oob) > 0 {
h.Control = (*byte)(unsafe.Pointer(&oob[0]))
h.Controllen = uint32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) name() []byte {
if h.Name != nil && h.Namelen > 0 {
return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen]
}
return nil
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}