bb9eabf1ef
Docker-DCO-1.1-Signed-off-by: Bernerd Schaefer <bj.schaefer@gmail.com> (github: bernerdschaefer)
162 lines
3.2 KiB
Go
162 lines
3.2 KiB
Go
package system
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import (
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"os/exec"
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"syscall"
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"unsafe"
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)
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func Chroot(dir string) error {
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return syscall.Chroot(dir)
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}
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func Chdir(dir string) error {
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return syscall.Chdir(dir)
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}
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func Exec(cmd string, args []string, env []string) error {
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return syscall.Exec(cmd, args, env)
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}
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func Execv(cmd string, args []string, env []string) error {
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name, err := exec.LookPath(cmd)
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if err != nil {
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return err
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}
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return Exec(name, args, env)
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}
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func Fork() (int, error) {
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syscall.ForkLock.Lock()
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pid, _, err := syscall.Syscall(syscall.SYS_FORK, 0, 0, 0)
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syscall.ForkLock.Unlock()
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if err != 0 {
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return -1, err
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}
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return int(pid), nil
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}
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func Mount(source, target, fstype string, flags uintptr, data string) error {
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return syscall.Mount(source, target, fstype, flags, data)
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}
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func Unmount(target string, flags int) error {
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return syscall.Unmount(target, flags)
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}
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func Pivotroot(newroot, putold string) error {
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return syscall.PivotRoot(newroot, putold)
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}
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func Unshare(flags int) error {
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return syscall.Unshare(flags)
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}
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func Clone(flags uintptr) (int, error) {
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syscall.ForkLock.Lock()
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pid, _, err := syscall.RawSyscall(syscall.SYS_CLONE, flags, 0, 0)
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syscall.ForkLock.Unlock()
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if err != 0 {
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return -1, err
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}
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return int(pid), nil
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}
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func UsetCloseOnExec(fd uintptr) error {
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if _, _, err := syscall.Syscall(syscall.SYS_FCNTL, fd, syscall.F_SETFD, 0); err != 0 {
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return err
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}
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return nil
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}
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func Setgroups(gids []int) error {
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return syscall.Setgroups(gids)
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}
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func Setresgid(rgid, egid, sgid int) error {
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return syscall.Setresgid(rgid, egid, sgid)
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}
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func Setresuid(ruid, euid, suid int) error {
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return syscall.Setresuid(ruid, euid, suid)
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}
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func Setgid(gid int) error {
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return syscall.Setgid(gid)
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}
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func Setuid(uid int) error {
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return syscall.Setuid(uid)
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}
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func Sethostname(name string) error {
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return syscall.Sethostname([]byte(name))
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}
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func Setsid() (int, error) {
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return syscall.Setsid()
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}
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func Ioctl(fd uintptr, flag, data uintptr) error {
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if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, flag, data); err != 0 {
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return err
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}
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return nil
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}
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func Closefd(fd uintptr) error {
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return syscall.Close(int(fd))
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}
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func Dup2(fd1, fd2 uintptr) error {
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return syscall.Dup2(int(fd1), int(fd2))
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}
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func Mknod(path string, mode uint32, dev int) error {
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return syscall.Mknod(path, mode, dev)
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}
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func ParentDeathSignal(sig uintptr) error {
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if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_PDEATHSIG, sig, 0); err != 0 {
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return err
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}
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return nil
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}
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func GetParentDeathSignal() (int, error) {
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var sig int
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_, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0)
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if err != 0 {
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return -1, err
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}
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return sig, nil
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}
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func Setctty() error {
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if _, _, err := syscall.RawSyscall(syscall.SYS_IOCTL, 0, uintptr(syscall.TIOCSCTTY), 0); err != 0 {
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return err
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}
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return nil
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}
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func Mkfifo(name string, mode uint32) error {
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return syscall.Mkfifo(name, mode)
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}
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func Umask(mask int) int {
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return syscall.Umask(mask)
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}
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func SetCloneFlags(cmd *exec.Cmd, flag uintptr) {
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if cmd.SysProcAttr == nil {
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cmd.SysProcAttr = &syscall.SysProcAttr{}
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}
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cmd.SysProcAttr.Cloneflags = flag
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}
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func Gettid() int {
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return syscall.Gettid()
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}
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