text: // Copyright 2019 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 unix
  
  // Round the length of a raw sockaddr up to align it properly.
  func cmsgAlignOf(salen int) int {
  	salign := SizeofPtr
  	if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
  		// 64-bit Dragonfly before the September 2019 ABI changes still requires
  		// 32-bit aligned access to network subsystem.
  		salign = 4
  	}
  	return (salen + salign - 1) & ^(salign - 1)
  }
  