case syscall.O_RDWR | syscall.O_CREAT:
		lockType = syscall.F_WRLCK
	default:
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EINVAL,
		}
	}

	lock := syscall.Flock_t{
		Start:  0,
		Len:    0,
		Pid:    0,
		Type:   lockType,
		Whence: 0,
	}

	f, err := os.OpenFile(path, flag, perm)
	if err != nil {
		return nil, err
	}

// Processes

type Rusage C.struct_rusage

type Rlimit C.struct_rlimit

type _Gid_t C.gid_t

// Files

type Stat_t C.struct_stat64

type Statfs_t C.struct_statfs64

type Flock_t C.struct_flock

type Fstore_t C.struct_fstore

type Radvisory_t C.struct_radvisory

type Fbootstraptransfer_t C.struct_fbootstraptransfer

type Log2phys_t C.struct_log2phys

	S_ISGID  = C.S_ISGID
	S_ISVTX  = C.S_ISVTX
	S_IRUSR  = C.S_IRUSR
	S_IWUSR  = C.S_IWUSR
	S_IXUSR  = C.S_IXUSR
	S_IRWXG  = C.S_IRWXG
	S_IRWXO  = C.S_IRWXO
)

type Stat_t C.struct_stat

type Flock_t C.struct_flock

type Dirent C.struct_dirent

// Sockets

type RawSockaddrInet4 C.struct_sockaddr_in

type RawSockaddrInet6 C.struct_sockaddr_in6

type RawSockaddrUnix C.struct_sockaddr_un

	S_IRUSR  = C.S_IRUSR
	S_IWUSR  = C.S_IWUSR
	S_IXUSR  = C.S_IXUSR
	S_IRWXG  = C.S_IRWXG
	S_IRWXO  = C.S_IRWXO
)

type Stat_t C.struct_stat

type Statfs_t C.struct_statfs

type Flock_t C.struct_flock

type Dirent C.struct_dirent

type Fsid C.fsid_t

// File system limits

const (
	pathMax = C.PATH_MAX
)

// Sockets

type RawSockaddrInet4 C.struct_sockaddr_in

	Msgsnd   int64
	Msgrcv   int64
	Nsignals int64
	Nvcsw    int64
	Nivcsw   int64
}

type Rlimit struct {
	Cur uint64
	Max uint64
}

type _Pid_t int32

type _Gid_t uint32

type Flock_t struct {
	Type   int16
	Whence int16
	Sysid  uint32
	Pid    int32
	Vfs    int32
	Start  int64
	Len    int64
}

type Stat_t struct {
	Dev      uint64
	Ino      uint64
	Mode     uint32

	Rdev      uint64
	Size      int64
	Atim      Timespec
	Mtim      Timespec
	Ctim      Timespec
	Blksize   int32
	Pad_cgo_0 [4]byte
	Blocks    int64
	Fstype    [16]int8
}

type Flock_t struct {
	Type      int16
	Whence    int16
	Pad_cgo_0 [4]byte
	Start     int64
	Len       int64
	Sysid     int32
	Pid       int32
	Pad       [4]int64
}

type Dirent struct {

	POLLHUP    = 0x2000
	POLLIN     = 0x1
	POLLNVAL   = 0x8000
	POLLOUT    = 0x2
	POLLPRI    = 0x4
	POLLRDBAND = 0x20
	POLLRDNORM = 0x10
	POLLWRBAND = 0x40
	POLLWRNORM = 0x2
)

type Flock_t struct {
	Type   int16
	Whence int16
	Sysid  uint32
	Pid    int32
	Vfs    int32
	Start  int64
	Len    int64
}

type Fsid_t struct {
	Val [2]uint32
}
type Fsid64_t struct {

	S_IRUSR  = C.S_IRUSR
	S_IWUSR  = C.S_IWUSR
	S_IXUSR  = C.S_IXUSR
	S_IRWXG  = C.S_IRWXG
	S_IRWXO  = C.S_IRWXO
)

type Stat_t C.struct_stat

type Statfs_t C.struct_statfs

type Flock_t C.struct_flock

type Dirent C.struct_dirent

type Fsid C.struct_fsid

// File system limits

const (
	pathMax = C.PATH_MAX
)

// Sockets

// Processes

type Rusage C.struct_rusage

type Rlimit C.struct_rlimit

type _Gid_t C.gid_t

// Files

type Stat_t C.struct_stat

type Statfs_t C.struct_statfs

type Flock_t C.struct_flock

type Dirent C.struct_dirent

type Fsid C.fsid_t

// File system limits

const (
	pathMax = C.PATH_MAX
)

// Sockets

type RawSockaddrInet4 C.struct_sockaddr_in

	Birthtimespec Timespec
	Size          int64
	Blocks        int64
	Blksize       uint32
	Flags         uint32
	Gen           uint32
	Spare         [2]uint32
}

type Statfs_t [0]byte

type Flock_t struct {
	Start  int64
	Len    int64
	Pid    int32
	Type   int16
	Whence int16
}

type Dirent struct {
	Fileno    uint64
	Reclen    uint16
	Namlen    uint16
	Type      uint8