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zeekay
cc986c328d
Squashes all pre-rewrite history into a single root commit. Previous tree: - 14506 commits including upstream Infisical fork history - Multiple merge chains carrying pre-purge content Force-rewrite per disk-space reclamation discipline. GHCR images (1.9.9, 1.9.11) remain immutable; their git lineage is no longer materialized.
30 lines
913 B
Go
30 lines
913 B
Go
// Copyright 2017 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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// Functions to access/create device major and minor numbers matching the
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// encoding used in NetBSD's sys/types.h header.
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package unix
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// Major returns the major component of a NetBSD device number.
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func Major(dev uint64) uint32 {
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return uint32((dev & 0x000fff00) >> 8)
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}
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// Minor returns the minor component of a NetBSD device number.
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func Minor(dev uint64) uint32 {
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minor := uint32((dev & 0x000000ff) >> 0)
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minor |= uint32((dev & 0xfff00000) >> 12)
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return minor
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}
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// Mkdev returns a NetBSD device number generated from the given major and minor
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// components.
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func Mkdev(major, minor uint32) uint64 {
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dev := (uint64(major) << 8) & 0x000fff00
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dev |= (uint64(minor) << 12) & 0xfff00000
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dev |= (uint64(minor) << 0) & 0x000000ff
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return dev
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}
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