mirror of https://go.googlesource.com/go
17 lines
547 B
Go
17 lines
547 B
Go
// 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 syscall
|
|
|
|
// 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)
|
|
}
|