golang.org/x/net@v0.25.1-0.20240516223405-c87a5b62e243/internal/socket/cmsghdr_unix.go (about)

     1  // Copyright 2020 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  //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
     6  
     7  package socket
     8  
     9  import "golang.org/x/sys/unix"
    10  
    11  func controlHeaderLen() int {
    12  	return unix.CmsgLen(0)
    13  }
    14  
    15  func controlMessageLen(dataLen int) int {
    16  	return unix.CmsgLen(dataLen)
    17  }
    18  
    19  func controlMessageSpace(dataLen int) int {
    20  	return unix.CmsgSpace(dataLen)
    21  }