| // +build !windows |
| |
| package archive |
| |
| import ( |
| "errors" |
| "syscall" |
| |
| "github.com/docker/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar" |
| ) |
| |
| func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (nlink uint32, inode uint64, err error) { |
| s, ok := stat.(*syscall.Stat_t) |
| |
| if !ok { |
| err = errors.New("cannot convert stat value to syscall.Stat_t") |
| return |
| } |
| |
| nlink = uint32(s.Nlink) |
| inode = uint64(s.Ino) |
| |
| // Currently go does not fil in the major/minors |
| if s.Mode&syscall.S_IFBLK == syscall.S_IFBLK || |
| s.Mode&syscall.S_IFCHR == syscall.S_IFCHR { |
| hdr.Devmajor = int64(major(uint64(s.Rdev))) |
| hdr.Devminor = int64(minor(uint64(s.Rdev))) |
| } |
| |
| return |
| } |
| |
| func major(device uint64) uint64 { |
| return (device >> 8) & 0xfff |
| } |
| |
| func minor(device uint64) uint64 { |
| return (device & 0xff) | ((device >> 12) & 0xfff00) |
| } |