| David K. Bainbridge | e05cf0c | 2021-08-19 03:16:50 +0000 | [diff] [blame^] | 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 | } |