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// +build linux darwin freebsd solaris
package graphdriver
import (
"fmt"
"os"
"syscall"
)
// chrootOrChdir() is either a chdir() to the specified path, or a chroot() to the
// specified path followed by chdir() to the new root directory
func chrootOrChdir(path string) error {
if err := syscall.Chroot(path); err != nil {
return fmt.Errorf("error chrooting to %q: %v", path, err)
}
if err := syscall.Chdir(string(os.PathSeparator)); err != nil {
return fmt.Errorf("error changing to %q: %v", path, err)
}
return nil
}
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