mirror of
https://github.com/golang/sys.git
synced 2026-02-08 11:46:04 +03:00
1f337fdb7f
Add Major, Minor and Mkdev functions for converting device numbers to their major/minor components and vice versa. Use the respective functions provided by the Solaris libc instead of reimplementing them. Test the conversion function with some well-known static device numbers for devices which should be present on any Solaris system. Re-generated files on OpenIndiana Hipster 2017.04 (SunOS 5.11) which also added some previously missing error constants. Change-Id: Ief9ea973d91c24956571eb8fafc8a4525b0f5b90 Reviewed-on: https://go-review.googlesource.com/64390 Reviewed-by: Ian Lance Taylor <iant@golang.org>
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
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.
|
|
|
|
package unix_test
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func TestDevices(t *testing.T) {
|
|
testCases := []struct {
|
|
path string
|
|
major uint32
|
|
minor uint32
|
|
}{
|
|
// Well-known major/minor numbers on OpenSolaris according to
|
|
// /etc/name_to_major
|
|
{"/dev/zero", 134, 12},
|
|
{"/dev/null", 134, 2},
|
|
{"/dev/ptyp0", 172, 0},
|
|
{"/dev/ttyp0", 175, 0},
|
|
{"/dev/ttyp1", 175, 1},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
|
|
var stat unix.Stat_t
|
|
err := unix.Stat(tc.path, &stat)
|
|
if err != nil {
|
|
t.Errorf("failed to stat device: %v", err)
|
|
return
|
|
}
|
|
|
|
dev := uint64(stat.Rdev)
|
|
if unix.Major(dev) != tc.major {
|
|
t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
|
|
}
|
|
if unix.Minor(dev) != tc.minor {
|
|
t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
|
|
}
|
|
if unix.Mkdev(tc.major, tc.minor) != dev {
|
|
t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
|
|
}
|
|
})
|
|
}
|
|
}
|