| // Copyright 2020 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 socket | |
| import "syscall" | |
| func (h *cmsghdr) set(l, lvl, typ int) { | |
| h.Len = int32(l) | |
| h.Level = int32(lvl) | |
| h.Type = int32(typ) | |
| } | |
| func controlHeaderLen() int { | |
| return syscall.CmsgLen(0) | |
| } | |
| func controlMessageLen(dataLen int) int { | |
| return syscall.CmsgLen(dataLen) | |
| } | |
| func controlMessageSpace(dataLen int) int { | |
| return syscall.CmsgSpace(dataLen) | |
| } |