github.com/mdaxf/iac@v0.0.0-20240519030858-58a061660378/vendor_skip/golang.org/x/sys/unix/sockcmsg_dragonfly.go (about)

     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  }