gtsocial-umbx

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sockcmsg_dragonfly.go (544B)

      1 // Copyright 2019 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 unix
      6 
      7 // Round the length of a raw sockaddr up to align it properly.
      8 func cmsgAlignOf(salen int) int {
      9 	salign := SizeofPtr
     10 	if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
     11 		// 64-bit Dragonfly before the September 2019 ABI changes still requires
     12 		// 32-bit aligned access to network subsystem.
     13 		salign = 4
     14 	}
     15 	return (salen + salign - 1) & ^(salign - 1)
     16 }