47d49c6b92
* Add a go.mod file * run go mod vendor again * Move to a well-supported ini file reader * Remove GO111MODULE=off * Use go 1.16 * Rename github.com/outbrain/golib -> github.com/openark/golib * Remove *.go-e files * Fix for `strconv.ParseInt: parsing "": invalid syntax` error * Add test for '[osc]' section Co-authored-by: Nate Wernimont <nate.wernimont@workiva.com>
30 lines
913 B
Go
30 lines
913 B
Go
// Copyright 2017 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Functions to access/create device major and minor numbers matching the
|
|
// encoding used in NetBSD's sys/types.h header.
|
|
|
|
package unix
|
|
|
|
// Major returns the major component of a NetBSD device number.
|
|
func Major(dev uint64) uint32 {
|
|
return uint32((dev & 0x000fff00) >> 8)
|
|
}
|
|
|
|
// Minor returns the minor component of a NetBSD device number.
|
|
func Minor(dev uint64) uint32 {
|
|
minor := uint32((dev & 0x000000ff) >> 0)
|
|
minor |= uint32((dev & 0xfff00000) >> 12)
|
|
return minor
|
|
}
|
|
|
|
// Mkdev returns a NetBSD device number generated from the given major and minor
|
|
// components.
|
|
func Mkdev(major, minor uint32) uint64 {
|
|
dev := (uint64(major) << 8) & 0x000fff00
|
|
dev |= (uint64(minor) << 12) & 0xfff00000
|
|
dev |= (uint64(minor) << 0) & 0x000000ff
|
|
return dev
|
|
}
|