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16 lines
544 B
16 lines
544 B
// 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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