mirror of
https://github.com/containers/skopeo.git
synced 2025-09-24 11:26:59 +00:00
7922028d7c
Update to use the correct c/image/v4 import path, work originally from https://github.com/containers/skopeo/pull/733 by Valentin Rothberg <rothberg@redhat.com>. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// +build linux,cgo
|
|
|
|
package loopback
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
func ioctlLoopCtlGetFree(fd uintptr) (int, error) {
|
|
index, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, LoopCtlGetFree, 0)
|
|
if err != 0 {
|
|
return 0, err
|
|
}
|
|
return int(index), nil
|
|
}
|
|
|
|
func ioctlLoopSetFd(loopFd, sparseFd uintptr) error {
|
|
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, loopFd, LoopSetFd, sparseFd); err != 0 {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func ioctlLoopSetStatus64(loopFd uintptr, loopInfo *loopInfo64) error {
|
|
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, loopFd, LoopSetStatus64, uintptr(unsafe.Pointer(loopInfo))); err != 0 {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func ioctlLoopClrFd(loopFd uintptr) error {
|
|
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, loopFd, LoopClrFd, 0); err != 0 {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func ioctlLoopGetStatus64(loopFd uintptr) (*loopInfo64, error) {
|
|
loopInfo := &loopInfo64{}
|
|
|
|
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, loopFd, LoopGetStatus64, uintptr(unsafe.Pointer(loopInfo))); err != 0 {
|
|
return nil, err
|
|
}
|
|
return loopInfo, nil
|
|
}
|
|
|
|
func ioctlLoopSetCapacity(loopFd uintptr, value int) error {
|
|
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, loopFd, LoopSetCapacity, uintptr(value)); err != 0 {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|