github.com/binkynet/BinkyNet@v1.12.1-0.20240421190447-da4e34c20be0/proto_vendor/golang.org/x/net/internal/socket/msghdr_linux.go (about) 1 // Copyright 2017 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package socket 6 7 import "unsafe" 8 9 func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) { 10 for i := range vs { 11 vs[i].set(bs[i]) 12 } 13 h.setIov(vs) 14 if len(oob) > 0 { 15 h.setControl(oob) 16 } 17 if sa != nil { 18 h.Name = (*byte)(unsafe.Pointer(&sa[0])) 19 h.Namelen = uint32(len(sa)) 20 } 21 } 22 23 func (h *msghdr) name() []byte { 24 if h.Name != nil && h.Namelen > 0 { 25 return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen] 26 } 27 return nil 28 } 29 30 func (h *msghdr) controllen() int { 31 return int(h.Controllen) 32 } 33 34 func (h *msghdr) flags() int { 35 return int(h.Flags) 36 }