diff --git a/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go b/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go
new file mode 100644
index 0000000..885842c
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/ztypes_darwin_amd64.go
@@ -0,0 +1,768 @@
+// cgo -godefs types_darwin.go | go run mkpost.go
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+//go:build amd64 && darwin
+// +build amd64,darwin
+
+package unix
+
+const (
+	SizeofPtr      = 0x8
+	SizeofShort    = 0x2
+	SizeofInt      = 0x4
+	SizeofLong     = 0x8
+	SizeofLongLong = 0x8
+)
+
+type (
+	_C_short     int16
+	_C_int       int32
+	_C_long      int64
+	_C_long_long int64
+)
+
+type Timespec struct {
+	Sec  int64
+	Nsec int64
+}
+
+type Timeval struct {
+	Sec  int64
+	Usec int32
+	_    [4]byte
+}
+
+type Timeval32 struct {
+	Sec  int32
+	Usec int32
+}
+
+type Rusage struct {
+	Utime    Timeval
+	Stime    Timeval
+	Maxrss   int64
+	Ixrss    int64
+	Idrss    int64
+	Isrss    int64
+	Minflt   int64
+	Majflt   int64
+	Nswap    int64
+	Inblock  int64
+	Oublock  int64
+	Msgsnd   int64
+	Msgrcv   int64
+	Nsignals int64
+	Nvcsw    int64
+	Nivcsw   int64
+}
+
+type Rlimit struct {
+	Cur uint64
+	Max uint64
+}
+
+type _Gid_t uint32
+
+type Stat_t struct {
+	Dev     int32
+	Mode    uint16
+	Nlink   uint16
+	Ino     uint64
+	Uid     uint32
+	Gid     uint32
+	Rdev    int32
+	Atim    Timespec
+	Mtim    Timespec
+	Ctim    Timespec
+	Btim    Timespec
+	Size    int64
+	Blocks  int64
+	Blksize int32
+	Flags   uint32
+	Gen     uint32
+	Lspare  int32
+	Qspare  [2]int64
+}
+
+type Statfs_t struct {
+	Bsize       uint32
+	Iosize      int32
+	Blocks      uint64
+	Bfree       uint64
+	Bavail      uint64
+	Files       uint64
+	Ffree       uint64
+	Fsid        Fsid
+	Owner       uint32
+	Type        uint32
+	Flags       uint32
+	Fssubtype   uint32
+	Fstypename  [16]byte
+	Mntonname   [1024]byte
+	Mntfromname [1024]byte
+	Flags_ext   uint32
+	Reserved    [7]uint32
+}
+
+type Flock_t struct {
+	Start  int64
+	Len    int64
+	Pid    int32
+	Type   int16
+	Whence int16
+}
+
+type Fstore_t struct {
+	Flags      uint32
+	Posmode    int32
+	Offset     int64
+	Length     int64
+	Bytesalloc int64
+}
+
+type Radvisory_t struct {
+	Offset int64
+	Count  int32
+	_      [4]byte
+}
+
+type Fbootstraptransfer_t struct {
+	Offset int64
+	Length uint64
+	Buffer *byte
+}
+
+type Log2phys_t struct {
+	Flags uint32
+	_     [16]byte
+}
+
+type Fsid struct {
+	Val [2]int32
+}
+
+type Dirent struct {
+	Ino     uint64
+	Seekoff uint64
+	Reclen  uint16
+	Namlen  uint16
+	Type    uint8
+	Name    [1024]int8
+	_       [3]byte
+}
+
+const (
+	PathMax = 0x400
+)
+
+type RawSockaddrInet4 struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type RawSockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+type RawSockaddrUnix struct {
+	Len    uint8
+	Family uint8
+	Path   [104]int8
+}
+
+type RawSockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [12]int8
+}
+
+type RawSockaddr struct {
+	Len    uint8
+	Family uint8
+	Data   [14]int8
+}
+
+type RawSockaddrAny struct {
+	Addr RawSockaddr
+	Pad  [92]int8
+}
+
+type RawSockaddrCtl struct {
+	Sc_len      uint8
+	Sc_family   uint8
+	Ss_sysaddr  uint16
+	Sc_id       uint32
+	Sc_unit     uint32
+	Sc_reserved [5]uint32
+}
+
+type RawSockaddrVM struct {
+	Len       uint8
+	Family    uint8
+	Reserved1 uint16
+	Port      uint32
+	Cid       uint32
+}
+
+type XVSockPCB struct {
+	Xv_len           uint32
+	Xv_vsockpp       uint64
+	Xvp_local_cid    uint32
+	Xvp_local_port   uint32
+	Xvp_remote_cid   uint32
+	Xvp_remote_port  uint32
+	Xvp_rxcnt        uint32
+	Xvp_txcnt        uint32
+	Xvp_peer_rxhiwat uint32
+	Xvp_peer_rxcnt   uint32
+	Xvp_last_pid     int32
+	Xvp_gencnt       uint64
+	Xv_socket        XSocket
+	_                [4]byte
+}
+
+type XSocket struct {
+	Xso_len      uint32
+	Xso_so       uint32
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	So_pcb       uint32
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSocket64 struct {
+	Xso_len      uint32
+	_            [8]byte
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	_            [8]byte
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSockbuf struct {
+	Cc    uint32
+	Hiwat uint32
+	Mbcnt uint32
+	Mbmax uint32
+	Lowat int32
+	Flags int16
+	Timeo int16
+}
+
+type XVSockPgen struct {
+	Len   uint32
+	Count uint64
+	Gen   uint64
+	Sogen uint64
+}
+
+type _Socklen uint32
+
+type Xucred struct {
+	Version uint32
+	Uid     uint32
+	Ngroups int16
+	Groups  [16]uint32
+}
+
+type Linger struct {
+	Onoff  int32
+	Linger int32
+}
+
+type Iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type IPMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
+
+type IPMreqn struct {
+	Multiaddr [4]byte /* in_addr */
+	Address   [4]byte /* in_addr */
+	Ifindex   int32
+}
+
+type IPv6Mreq struct {
+	Multiaddr [16]byte /* in6_addr */
+	Interface uint32
+}
+
+type Msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Iov        *Iovec
+	Iovlen     int32
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type Cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type Inet4Pktinfo struct {
+	Ifindex  uint32
+	Spec_dst [4]byte /* in_addr */
+	Addr     [4]byte /* in_addr */
+}
+
+type Inet6Pktinfo struct {
+	Addr    [16]byte /* in6_addr */
+	Ifindex uint32
+}
+
+type IPv6MTUInfo struct {
+	Addr RawSockaddrInet6
+	Mtu  uint32
+}
+
+type ICMPv6Filter struct {
+	Filt [8]uint32
+}
+
+const (
+	SizeofSockaddrInet4    = 0x10
+	SizeofSockaddrInet6    = 0x1c
+	SizeofSockaddrAny      = 0x6c
+	SizeofSockaddrUnix     = 0x6a
+	SizeofSockaddrDatalink = 0x14
+	SizeofSockaddrCtl      = 0x20
+	SizeofSockaddrVM       = 0xc
+	SizeofXvsockpcb        = 0xa8
+	SizeofXSocket          = 0x64
+	SizeofXSockbuf         = 0x18
+	SizeofXVSockPgen       = 0x20
+	SizeofXucred           = 0x4c
+	SizeofLinger           = 0x8
+	SizeofIovec            = 0x10
+	SizeofIPMreq           = 0x8
+	SizeofIPMreqn          = 0xc
+	SizeofIPv6Mreq         = 0x14
+	SizeofMsghdr           = 0x30
+	SizeofCmsghdr          = 0xc
+	SizeofInet4Pktinfo     = 0xc
+	SizeofInet6Pktinfo     = 0x14
+	SizeofIPv6MTUInfo      = 0x20
+	SizeofICMPv6Filter     = 0x20
+)
+
+const (
+	PTRACE_TRACEME = 0x0
+	PTRACE_CONT    = 0x7
+	PTRACE_KILL    = 0x8
+)
+
+type Kevent_t struct {
+	Ident  uint64
+	Filter int16
+	Flags  uint16
+	Fflags uint32
+	Data   int64
+	Udata  *byte
+}
+
+type FdSet struct {
+	Bits [32]int32
+}
+
+const (
+	SizeofIfMsghdr    = 0x70
+	SizeofIfData      = 0x60
+	SizeofIfaMsghdr   = 0x14
+	SizeofIfmaMsghdr  = 0x10
+	SizeofIfmaMsghdr2 = 0x14
+	SizeofRtMsghdr    = 0x5c
+	SizeofRtMetrics   = 0x38
+)
+
+type IfMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	Data    IfData
+}
+
+type IfData struct {
+	Type       uint8
+	Typelen    uint8
+	Physical   uint8
+	Addrlen    uint8
+	Hdrlen     uint8
+	Recvquota  uint8
+	Xmitquota  uint8
+	Unused1    uint8
+	Mtu        uint32
+	Metric     uint32
+	Baudrate   uint32
+	Ipackets   uint32
+	Ierrors    uint32
+	Opackets   uint32
+	Oerrors    uint32
+	Collisions uint32
+	Ibytes     uint32
+	Obytes     uint32
+	Imcasts    uint32
+	Omcasts    uint32
+	Iqdrops    uint32
+	Noproto    uint32
+	Recvtiming uint32
+	Xmittiming uint32
+	Lastchange Timeval32
+	Unused2    uint32
+	Hwassist   uint32
+	Reserved1  uint32
+	Reserved2  uint32
+}
+
+type IfaMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	Metric  int32
+}
+
+type IfmaMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Addrs   int32
+	Flags   int32
+	Index   uint16
+	_       [2]byte
+}
+
+type IfmaMsghdr2 struct {
+	Msglen   uint16
+	Version  uint8
+	Type     uint8
+	Addrs    int32
+	Flags    int32
+	Index    uint16
+	Refcount int32
+}
+
+type RtMsghdr struct {
+	Msglen  uint16
+	Version uint8
+	Type    uint8
+	Index   uint16
+	Flags   int32
+	Addrs   int32
+	Pid     int32
+	Seq     int32
+	Errno   int32
+	Use     int32
+	Inits   uint32
+	Rmx     RtMetrics
+}
+
+type RtMetrics struct {
+	Locks    uint32
+	Mtu      uint32
+	Hopcount uint32
+	Expire   int32
+	Recvpipe uint32
+	Sendpipe uint32
+	Ssthresh uint32
+	Rtt      uint32
+	Rttvar   uint32
+	Pksent   uint32
+	State    uint32
+	Filler   [3]uint32
+}
+
+const (
+	SizeofBpfVersion = 0x4
+	SizeofBpfStat    = 0x8
+	SizeofBpfProgram = 0x10
+	SizeofBpfInsn    = 0x8
+	SizeofBpfHdr     = 0x14
+)
+
+type BpfVersion struct {
+	Major uint16
+	Minor uint16
+}
+
+type BpfStat struct {
+	Recv uint32
+	Drop uint32
+}
+
+type BpfProgram struct {
+	Len   uint32
+	Insns *BpfInsn
+}
+
+type BpfInsn struct {
+	Code uint16
+	Jt   uint8
+	Jf   uint8
+	K    uint32
+}
+
+type BpfHdr struct {
+	Tstamp  Timeval32
+	Caplen  uint32
+	Datalen uint32
+	Hdrlen  uint16
+	_       [2]byte
+}
+
+type Termios struct {
+	Iflag  uint64
+	Oflag  uint64
+	Cflag  uint64
+	Lflag  uint64
+	Cc     [20]uint8
+	Ispeed uint64
+	Ospeed uint64
+}
+
+type Winsize struct {
+	Row    uint16
+	Col    uint16
+	Xpixel uint16
+	Ypixel uint16
+}
+
+const (
+	AT_FDCWD            = -0x2
+	AT_REMOVEDIR        = 0x80
+	AT_SYMLINK_FOLLOW   = 0x40
+	AT_SYMLINK_NOFOLLOW = 0x20
+)
+
+type PollFd struct {
+	Fd      int32
+	Events  int16
+	Revents int16
+}
+
+const (
+	POLLERR    = 0x8
+	POLLHUP    = 0x10
+	POLLIN     = 0x1
+	POLLNVAL   = 0x20
+	POLLOUT    = 0x4
+	POLLPRI    = 0x2
+	POLLRDBAND = 0x80
+	POLLRDNORM = 0x40
+	POLLWRBAND = 0x100
+	POLLWRNORM = 0x4
+)
+
+type Utsname struct {
+	Sysname  [256]byte
+	Nodename [256]byte
+	Release  [256]byte
+	Version  [256]byte
+	Machine  [256]byte
+}
+
+const SizeofClockinfo = 0x14
+
+type Clockinfo struct {
+	Hz      int32
+	Tick    int32
+	Tickadj int32
+	Stathz  int32
+	Profhz  int32
+}
+
+type CtlInfo struct {
+	Id   uint32
+	Name [96]byte
+}
+
+const SizeofKinfoProc = 0x288
+
+type Eproc struct {
+	Paddr   uintptr
+	Sess    uintptr
+	Pcred   Pcred
+	Ucred   Ucred
+	Vm      Vmspace
+	Ppid    int32
+	Pgid    int32
+	Jobc    int16
+	Tdev    int32
+	Tpgid   int32
+	Tsess   uintptr
+	Wmesg   [8]byte
+	Xsize   int32
+	Xrssize int16
+	Xccount int16
+	Xswrss  int16
+	Flag    int32
+	Login   [12]byte
+	Spare   [4]int32
+	_       [4]byte
+}
+
+type ExternProc struct {
+	P_starttime Timeval
+	P_vmspace   *Vmspace
+	P_sigacts   uintptr
+	P_flag      int32
+	P_stat      int8
+	P_pid       int32
+	P_oppid     int32
+	P_dupfd     int32
+	User_stack  *int8
+	Exit_thread *byte
+	P_debugger  int32
+	Sigwait     int32
+	P_estcpu    uint32
+	P_cpticks   int32
+	P_pctcpu    uint32
+	P_wchan     *byte
+	P_wmesg     *int8
+	P_swtime    uint32
+	P_slptime   uint32
+	P_realtimer Itimerval
+	P_rtime     Timeval
+	P_uticks    uint64
+	P_sticks    uint64
+	P_iticks    uint64
+	P_traceflag int32
+	P_tracep    uintptr
+	P_siglist   int32
+	P_textvp    uintptr
+	P_holdcnt   int32
+	P_sigmask   uint32
+	P_sigignore uint32
+	P_sigcatch  uint32
+	P_priority  uint8
+	P_usrpri    uint8
+	P_nice      int8
+	P_comm      [17]byte
+	P_pgrp      uintptr
+	P_addr      uintptr
+	P_xstat     uint16
+	P_acflag    uint16
+	P_ru        *Rusage
+}
+
+type Itimerval struct {
+	Interval Timeval
+	Value    Timeval
+}
+
+type KinfoProc struct {
+	Proc  ExternProc
+	Eproc Eproc
+}
+
+type Vmspace struct {
+	Dummy  int32
+	Dummy2 *int8
+	Dummy3 [5]int32
+	Dummy4 [3]*int8
+}
+
+type Pcred struct {
+	Pc_lock  [72]int8
+	Pc_ucred uintptr
+	P_ruid   uint32
+	P_svuid  uint32
+	P_rgid   uint32
+	P_svgid  uint32
+	P_refcnt int32
+	_        [4]byte
+}
+
+type Ucred struct {
+	Ref     int32
+	Uid     uint32
+	Ngroups int16
+	Groups  [16]uint32
+}
+
+type SysvIpcPerm struct {
+	Uid  uint32
+	Gid  uint32
+	Cuid uint32
+	Cgid uint32
+	Mode uint16
+	_    uint16
+	_    int32
+}
+type SysvShmDesc struct {
+	Perm   SysvIpcPerm
+	Segsz  uint64
+	Lpid   int32
+	Cpid   int32
+	Nattch uint16
+	_      [34]byte
+}
+
+const (
+	IPC_CREAT   = 0x200
+	IPC_EXCL    = 0x400
+	IPC_NOWAIT  = 0x800
+	IPC_PRIVATE = 0x0
+)
+
+const (
+	IPC_RMID = 0x0
+	IPC_SET  = 0x1
+	IPC_STAT = 0x2
+)
+
+const (
+	SHM_RDONLY = 0x1000
+	SHM_RND    = 0x2000
+)