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| author | Mitja Felicijan <mitja.felicijan@gmail.com> | 2024-10-25 00:47:47 +0200 |
|---|---|---|
| committer | Mitja Felicijan <mitja.felicijan@gmail.com> | 2024-10-25 00:47:47 +0200 |
| commit | c6cc0108ca7738023b45e0eeac0fa2390532dd93 (patch) | |
| tree | 36890e6cd3091bbab8efbe686cc56f467f645bfd /vendor/golang.org/x/sys/unix/dev_openbsd.go | |
| parent | 0130404a1dc663d4aa68d780c9bcb23a4243e68d (diff) | |
| download | jbmafp-c6cc0108ca7738023b45e0eeac0fa2390532dd93.tar.gz | |
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_openbsd.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/dev_openbsd.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/dev_openbsd.go b/vendor/golang.org/x/sys/unix/dev_openbsd.go new file mode 100644 index 0000000..f3430c4 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/dev_openbsd.go | |||
| @@ -0,0 +1,29 @@ | |||
| 1 | // Copyright 2017 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 | // Functions to access/create device major and minor numbers matching the | ||
| 6 | // encoding used in OpenBSD's sys/types.h header. | ||
| 7 | |||
| 8 | package unix | ||
| 9 | |||
| 10 | // Major returns the major component of an OpenBSD device number. | ||
| 11 | func Major(dev uint64) uint32 { | ||
| 12 | return uint32((dev & 0x0000ff00) >> 8) | ||
| 13 | } | ||
| 14 | |||
| 15 | // Minor returns the minor component of an OpenBSD device number. | ||
| 16 | func Minor(dev uint64) uint32 { | ||
| 17 | minor := uint32((dev & 0x000000ff) >> 0) | ||
| 18 | minor |= uint32((dev & 0xffff0000) >> 8) | ||
| 19 | return minor | ||
| 20 | } | ||
| 21 | |||
| 22 | // Mkdev returns an OpenBSD device number generated from the given major and minor | ||
| 23 | // components. | ||
| 24 | func Mkdev(major, minor uint32) uint64 { | ||
| 25 | dev := (uint64(major) << 8) & 0x0000ff00 | ||
| 26 | dev |= (uint64(minor) << 8) & 0xffff0000 | ||
| 27 | dev |= (uint64(minor) << 0) & 0x000000ff | ||
| 28 | return dev | ||
| 29 | } | ||
