36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
// Linsk - A utility to access Linux-native file systems on non-Linux operating systems.
|
|
// Copyright (c) 2023 The Linsk Authors.
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
//go:build linux
|
|
|
|
package osspecifics
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"github.com/pkg/errors"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func getDeviceLogicalBlockSizeInner(fd uintptr) (int64, error) {
|
|
var bs int64
|
|
_, _, serr := unix.Syscall(unix.SYS_IOCTL, fd, unix.BLKSSZGET, uintptr(unsafe.Pointer(&bs))) // #nosec G103 It's safe.
|
|
if serr != 0 {
|
|
return 0, errors.Wrap(serr, "syscall get logical block size")
|
|
}
|
|
|
|
return bs, nil
|
|
}
|