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authorNiall Sheridan <nsheridan@gmail.com>2017-10-18 13:15:14 +0100
committerNiall Sheridan <niall@intercom.io>2017-10-18 13:25:46 +0100
commit7b320119ba532fd409ec7dade7ad02011c309599 (patch)
treea39860f35b55e6cc499f8f5bfa969138c5dd6b73 /vendor/golang.org/x/sys/unix/dev_openbsd.go
parent7c99874c7a3e7a89716f3ee0cdf696532e35ae35 (diff)
Update dependencies
Diffstat (limited to 'vendor/golang.org/x/sys/unix/dev_openbsd.go')
-rw-r--r--vendor/golang.org/x/sys/unix/dev_openbsd.go29
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 @@
+// 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 OpenBSD's sys/types.h header.
+
+package unix
+
+// Major returns the major component of an OpenBSD device number.
+func Major(dev uint64) uint32 {
+ return uint32((dev & 0x0000ff00) >> 8)
+}
+
+// Minor returns the minor component of an OpenBSD device number.
+func Minor(dev uint64) uint32 {
+ minor := uint32((dev & 0x000000ff) >> 0)
+ minor |= uint32((dev & 0xffff0000) >> 8)
+ return minor
+}
+
+// Mkdev returns an OpenBSD device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+ dev := (uint64(major) << 8) & 0x0000ff00
+ dev |= (uint64(minor) << 8) & 0xffff0000
+ dev |= (uint64(minor) << 0) & 0x000000ff
+ return dev
+}