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17 lines
544 B
Go
17 lines
544 B
Go
4 years ago
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package unix
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// Round the length of a raw sockaddr up to align it properly.
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func cmsgAlignOf(salen int) int {
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salign := SizeofPtr
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if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
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// 64-bit Dragonfly before the September 2019 ABI changes still requires
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// 32-bit aligned access to network subsystem.
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salign = 4
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}
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return (salen + salign - 1) & ^(salign - 1)
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}
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