{-# LINE 1 "Foundation/System/Bindings/Posix.hsc" #-}
-----------------------------------------------------------------------------
{-# LINE 2 "Foundation/System/Bindings/Posix.hsc" #-}
-- |
-- Module      :  Foundation.System.Bindings.Posix
-- Copyright   :  (c) Vincent Hanquez 2014-2017
-- License     :  BSD-style
--
-- Maintainer  :  Vincent Hanquez
-- Stability   :  provisional
-- Portability :  non-portable (requires POSIX)
--
-- Functions defined by the POSIX standards
--
-----------------------------------------------------------------------------

module Foundation.System.Bindings.Posix
   where

import Foundation.Internal.Base
import Foreign.C.Types
import Data.Bits
import Foundation.System.Bindings.PosixDef


{-# LINE 24 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 25 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 26 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 27 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 28 "Foundation/System/Bindings/Posix.hsc" #-}

data CDir
data CDirent

sysPosix_E2BIG
    , sysPosix_EACCES
    , sysPosix_EADDRINUSE
    , sysPosix_EADDRNOTAVAIL
    , sysPosix_EAFNOSUPPORT
    , sysPosix_EAGAIN
    , sysPosix_EALREADY
    , sysPosix_EBADF
    , sysPosix_EBUSY
    , sysPosix_ECANCELED
    , sysPosix_ECHILD
    , sysPosix_ECONNABORTED
    , sysPosix_ECONNREFUSED
    , sysPosix_ECONNRESET
    , sysPosix_EDEADLK
    , sysPosix_EDESTADDRREQ
    , sysPosix_EDOM
    , sysPosix_EDQUOT
    , sysPosix_EEXIST
    , sysPosix_EFAULT
    , sysPosix_EFBIG
    , sysPosix_EHOSTUNREACH
    , sysPosix_EIDRM
    , sysPosix_EILSEQ
    , sysPosix_EINPROGRESS
    , sysPosix_EINTR
    , sysPosix_EINVAL
    , sysPosix_EIO
    , sysPosix_EISCONN
    , sysPosix_EISDIR
    , sysPosix_ELOOP
    , sysPosix_EMFILE
    , sysPosix_EMLINK
    , sysPosix_EMSGSIZE
    , sysPosix_ENAMETOOLONG
    , sysPosix_ENETDOWN
    , sysPosix_ENETRESET
    , sysPosix_ENETUNREACH
    , sysPosix_ENFILE
    , sysPosix_ENOBUFS
    , sysPosix_ENODEV
    , sysPosix_ENOENT
    , sysPosix_ENOEXEC
    , sysPosix_ENOLCK
    , sysPosix_ENOMEM
    , sysPosix_ENOMSG
    , sysPosix_ENOPROTOOPT
    , sysPosix_ENOSPC
    , sysPosix_ENOSYS
    , sysPosix_ENOTCONN
    , sysPosix_ENOTDIR
    , sysPosix_ENOTEMPTY
    , sysPosix_ENOTSOCK
    , sysPosix_ENOTSUP
    , sysPosix_ENOTTY
    , sysPosix_ENXIO
    , sysPosix_EOPNOTSUPP
    , sysPosix_EOVERFLOW
    , sysPosix_EPERM
    , sysPosix_EPIPE
    , sysPosix_EPROTONOSUPPORT
    , sysPosix_EPROTOTYPE
    , sysPosix_ERANGE
    , sysPosix_EROFS
    , sysPosix_ESPIPE
    , sysPosix_ESRCH
    , sysPosix_ESTALE
    , sysPosix_ETIMEDOUT
    , sysPosix_ETXTBSY
    , sysPosix_EWOULDBLOCK
    , sysPosix_EXDEV :: CErrno
sysPosix_E2BIG = (7)
{-# LINE 104 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EACCES = (13)
{-# LINE 105 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EADDRINUSE = (98)
{-# LINE 106 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EADDRNOTAVAIL = (99)
{-# LINE 107 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EAFNOSUPPORT = (97)
{-# LINE 108 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EAGAIN = (11)
{-# LINE 109 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EALREADY = (114)
{-# LINE 110 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EBADF = (9)
{-# LINE 111 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EBUSY = (16)
{-# LINE 112 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ECANCELED = (125)
{-# LINE 113 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ECHILD = (10)
{-# LINE 114 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ECONNABORTED = (103)
{-# LINE 115 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ECONNREFUSED = (111)
{-# LINE 116 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ECONNRESET = (104)
{-# LINE 117 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EDEADLK = (35)
{-# LINE 118 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EDESTADDRREQ = (89)
{-# LINE 119 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EDOM = (33)
{-# LINE 120 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EDQUOT = (122)
{-# LINE 121 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EEXIST = (17)
{-# LINE 122 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EFAULT = (14)
{-# LINE 123 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EFBIG = (27)
{-# LINE 124 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EHOSTUNREACH = (113)
{-# LINE 125 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EIDRM = (43)
{-# LINE 126 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EILSEQ = (84)
{-# LINE 127 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EINPROGRESS = (115)
{-# LINE 128 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EINTR = (4)
{-# LINE 129 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EINVAL = (22)
{-# LINE 130 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EIO = (5)
{-# LINE 131 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EISCONN = (106)
{-# LINE 132 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EISDIR = (21)
{-# LINE 133 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ELOOP = (40)
{-# LINE 134 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EMFILE = (24)
{-# LINE 135 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EMLINK = (31)
{-# LINE 136 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EMSGSIZE = (90)
{-# LINE 137 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENAMETOOLONG = (36)
{-# LINE 138 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENETDOWN = (100)
{-# LINE 139 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENETRESET = (102)
{-# LINE 140 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENETUNREACH = (101)
{-# LINE 141 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENFILE = (23)
{-# LINE 142 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOBUFS = (105)
{-# LINE 143 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENODEV = (19)
{-# LINE 144 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOENT = (2)
{-# LINE 145 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOEXEC = (8)
{-# LINE 146 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOLCK = (37)
{-# LINE 147 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOMEM = (12)
{-# LINE 148 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOMSG = (42)
{-# LINE 149 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOPROTOOPT = (92)
{-# LINE 150 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOSPC = (28)
{-# LINE 151 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOSYS = (38)
{-# LINE 152 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTCONN = (107)
{-# LINE 153 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTDIR = (20)
{-# LINE 154 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTEMPTY = (39)
{-# LINE 155 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTSOCK = (88)
{-# LINE 156 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTSUP = (95)
{-# LINE 157 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTTY = (25)
{-# LINE 158 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENXIO = (6)
{-# LINE 159 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EOPNOTSUPP = (95)
{-# LINE 160 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EOVERFLOW = (75)
{-# LINE 161 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EPERM = (1)
{-# LINE 162 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EPIPE = (32)
{-# LINE 163 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EPROTONOSUPPORT = (93)
{-# LINE 164 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EPROTOTYPE = (91)
{-# LINE 165 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ERANGE = (34)
{-# LINE 166 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EROFS = (30)
{-# LINE 167 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ESPIPE = (29)
{-# LINE 168 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ESRCH = (3)
{-# LINE 169 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ESTALE = (116)
{-# LINE 170 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ETIMEDOUT = (110)
{-# LINE 171 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ETXTBSY = (26)
{-# LINE 172 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EWOULDBLOCK = (11)
{-# LINE 173 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EXDEV = (18)
{-# LINE 174 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 176 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENODATA :: CErrno
sysPosix_ENODATA = (61)
{-# LINE 178 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 179 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 181 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOSR :: CErrno
sysPosix_ENOSR = (63)
{-# LINE 183 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 184 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 186 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOSTR :: CErrno
sysPosix_ENOSTR = (60)
{-# LINE 188 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 189 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 191 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ETIME :: CErrno
sysPosix_ETIME = (62)
{-# LINE 193 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 194 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 196 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EBADMSG :: CErrno
sysPosix_EBADMSG = (74)
{-# LINE 198 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 199 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 201 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EMULTIHOP :: CErrno
sysPosix_EMULTIHOP = (72)
{-# LINE 203 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 204 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 206 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOLINK :: CErrno
sysPosix_ENOLINK = (67)
{-# LINE 208 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 209 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 211 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_ENOTRECOVERABLE :: CErrno
sysPosix_ENOTRECOVERABLE = (131)
{-# LINE 213 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 214 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 216 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EOWNERDEAD :: CErrno
sysPosix_EOWNERDEAD = (130)
{-# LINE 218 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 219 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 221 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_EPROTO :: CErrno
sysPosix_EPROTO = (71)
{-# LINE 223 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 224 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_O_RDONLY
    , sysPosix_O_WRONLY
    , sysPosix_O_RDWR
    , sysPosix_O_NONBLOCK
    , sysPosix_O_APPEND
    , sysPosix_O_CREAT
    , sysPosix_O_TRUNC
    , sysPosix_O_EXCL :: COpenFlags
sysPosix_O_RDONLY   = (0)
{-# LINE 234 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_WRONLY   = (1)
{-# LINE 235 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_RDWR     = ((0) .|. (1))
{-# LINE 236 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_NONBLOCK = (2048)
{-# LINE 237 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_APPEND   = (1024)
{-# LINE 238 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_CREAT    = (64)
{-# LINE 239 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_TRUNC    = (512)
{-# LINE 240 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_EXCL     = (128)
{-# LINE 241 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 243 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_NOFOLLOW :: COpenFlags
sysPosix_O_NOFOLLOW = (131072)
{-# LINE 245 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 246 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 248 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_O_CLOEXEC :: COpenFlags
sysPosix_O_CLOEXEC  = (524288)
{-# LINE 250 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 251 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_PROT_NONE
    , sysPosix_PROT_READ
    , sysPosix_PROT_WRITE
    , sysPosix_PROT_EXEC :: CMemProtFlags
sysPosix_PROT_NONE  = (0)
{-# LINE 257 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_PROT_READ  = (1)
{-# LINE 258 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_PROT_WRITE = (2)
{-# LINE 259 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_PROT_EXEC  = (4)
{-# LINE 260 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_MAP_SHARED
    , sysPosix_MAP_PRIVATE
    , sysPosix_MAP_FIXED
    , sysPosix_MAP_ANONYMOUS :: CMemMappingFlags
sysPosix_MAP_SHARED    = (1)
{-# LINE 266 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MAP_PRIVATE   = (2)
{-# LINE 267 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MAP_FIXED     = (16)
{-# LINE 268 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 271 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MAP_ANONYMOUS = (32)
{-# LINE 272 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 273 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_MADV_NORMAL
    , sysPosix_MADV_RANDOM
    , sysPosix_MADV_SEQUENTIAL
    , sysPosix_MADV_WILLNEED
    , sysPosix_MADV_DONTNEED :: CMemAdvice

{-# LINE 280 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MADV_NORMAL     = (0)
{-# LINE 281 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MADV_RANDOM     = (1)
{-# LINE 282 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MADV_SEQUENTIAL = (2)
{-# LINE 283 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MADV_WILLNEED   = (3)
{-# LINE 284 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MADV_DONTNEED   = (4)
{-# LINE 285 "Foundation/System/Bindings/Posix.hsc" #-}

{-# LINE 292 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_MS_ASYNC
    , sysPosix_MS_SYNC
    , sysPosix_MS_INVALIDATE :: CMemSyncFlags
sysPosix_MS_ASYNC      = (1)
{-# LINE 297 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MS_SYNC       = (4)
{-# LINE 298 "Foundation/System/Bindings/Posix.hsc" #-}
sysPosix_MS_INVALIDATE = (2)
{-# LINE 299 "Foundation/System/Bindings/Posix.hsc" #-}

foreign import ccall unsafe "mmap"
    sysPosixMmap :: Ptr a -> CSize -> CMemProtFlags -> CMemMappingFlags -> CFd -> COff -> IO (Ptr a)

foreign import ccall unsafe "munmap"
    sysPosixMunmap :: Ptr a -> CSize -> IO CInt


{-# LINE 307 "Foundation/System/Bindings/Posix.hsc" #-}
foreign import ccall unsafe "posix_madvise"
    sysPosixMadvise :: Ptr a -> CSize -> CMemAdvice -> IO CInt

{-# LINE 313 "Foundation/System/Bindings/Posix.hsc" #-}

foreign import ccall unsafe "msync"
    sysPosixMsync :: Ptr a -> CSize -> CMemSyncFlags -> IO CInt

foreign import ccall unsafe "mprotect"
    sysPosixMprotect :: Ptr a -> CSize -> CMemProtFlags -> IO CInt


{-# LINE 321 "Foundation/System/Bindings/Posix.hsc" #-}
foreign import ccall unsafe "mlock"
    sysPosixMlock :: Ptr a -> CSize -> IO CInt

{-# LINE 327 "Foundation/System/Bindings/Posix.hsc" #-}


{-# LINE 329 "Foundation/System/Bindings/Posix.hsc" #-}
foreign import ccall unsafe "munlock"
    sysPosixMunlock :: Ptr a -> CSize -> IO CInt

{-# LINE 335 "Foundation/System/Bindings/Posix.hsc" #-}

sysPosix_SC_PAGESIZE :: CSysconfName
sysPosix_SC_PAGESIZE = (30)
{-# LINE 338 "Foundation/System/Bindings/Posix.hsc" #-}

foreign import ccall unsafe "sysconf"
    sysPosixSysconf :: CSysconfName -> CLong
--------------------------------------------------------------------------------
-- files
--------------------------------------------------------------------------------
foreign import ccall unsafe "open"
    sysPosixOpen :: Ptr CChar -> COpenFlags -> CMode -> IO CFd
foreign import ccall unsafe "openat"
    sysPosixOpenAt :: CFd -> Ptr CChar -> COpenFlags -> CMode -> IO CFd
foreign import ccall unsafe "close"
    sysPosixClose :: CFd -> IO CInt

foreign import ccall unsafe "fcntl"
    sysPosixFnctlNoArg :: CFd -> CInt -> IO CInt
foreign import ccall unsafe "fcntl"
    sysPosixFnctlPtr :: CFd -> CInt -> Ptr a -> IO CInt

foreign import ccall unsafe "ftruncate"
    sysPosixFtruncate :: CFd -> COff -> IO CInt

--------------------------------------------------------------------------------
-- directories
--------------------------------------------------------------------------------

foreign import ccall unsafe "opendir"
    sysPosixOpendir :: Ptr CChar -> IO (Ptr CDir)
foreign import ccall unsafe "fdopendir"
    sysPosixFdopendir :: CFd -> IO (Ptr CDir)
foreign import ccall unsafe "readdir"
    sysPosixReaddir :: Ptr CDir -> IO (Ptr CDirent)
foreign import ccall unsafe "readdir_r"
    sysPosixReaddirR :: Ptr CDir -> Ptr CDirent -> Ptr (Ptr CDirent) -> IO CInt
foreign import ccall unsafe "telldir"
    sysPosixTelldir :: Ptr CDir -> IO CLong
foreign import ccall unsafe "seekdir"
    sysPosixSeekdir :: Ptr CDir -> CLong -> IO ()
foreign import ccall unsafe "rewinddir"
    sysPosixRewinddir :: Ptr CDir -> IO ()
foreign import ccall unsafe "closedir"
    sysPosixClosedir :: Ptr CDir -> IO CInt
foreign import ccall unsafe "dirfd"
    sysPosixDirfd :: Ptr CDir -> IO CFd