mingw/include/fcntl.h

   1 /*
   2  * fcntl.h
   3  * This file has no copyright assigned and is placed in the Public Domain.
   4  * This file is a part of the mingw-runtime package.
   5  * No warranty is given; refer to the file DISCLAIMER within the package.
   6  *
   7  * Access constants for _open. Note that the permissions constants are
   8  * in sys/stat.h (ick).
   9  *
  10  */
  11 #ifndef _FCNTL_H_
  12 #define _FCNTL_H_
  13
  14 /* All the headers include this file. */
  15 #include <_mingw.h>
  16
  17 /*
  18  * It appears that fcntl.h should include io.h for compatibility...
  19  */
  20 #include <io.h>
  21
  22 /* Specifiy one of these flags to define the access mode. */
  23 #define _O_RDONLY       0
  24 #define _O_WRONLY       1
  25 #define _O_RDWR         2
  26
  27 /* Mask for access mode bits in the _open flags. */
  28 #define _O_ACCMODE      (_O_RDONLY|_O_WRONLY|_O_RDWR)
  29
  30 #define _O_APPEND       0x0008  /* Writes will add to the end of the file. */
  31
  32 #define _O_RANDOM       0x0010
  33 #define _O_SEQUENTIAL   0x0020
  34 #define _O_TEMPORARY    0x0040  /* Make the file dissappear after closing.
  35                                  * WARNING: Even if not created by _open! */
  36 #define _O_NOINHERIT    0x0080
  37
  38 #define _O_CREAT        0x0100  /* Create the file if it does not exist. */
  39 #define _O_TRUNC        0x0200  /* Truncate the file if it does exist. */
  40 #define _O_EXCL         0x0400  /* Open only if the file does not exist. */
  41
  42 #define _O_SHORT_LIVED  0x1000
  43
  44 /* NOTE: Text is the default even if the given _O_TEXT bit is not on. */
  45 #define _O_TEXT         0x4000  /* CR-LF in file becomes LF in memory. */
  46 #define _O_BINARY       0x8000  /* Input and output is not translated. */
  47 #define _O_RAW          _O_BINARY
  48
  49 #ifndef _NO_OLDNAMES
  50
  51 /* POSIX/Non-ANSI names for increased portability */
  52 #define O_RDONLY        _O_RDONLY
  53 #define O_WRONLY        _O_WRONLY
  54 #define O_RDWR          _O_RDWR
  55 #define O_ACCMODE       _O_ACCMODE
  56 #define O_APPEND        _O_APPEND
  57 #define O_CREAT         _O_CREAT
  58 #define O_TRUNC         _O_TRUNC
  59 #define O_EXCL          _O_EXCL
  60 #define O_TEXT          _O_TEXT
  61 #define O_BINARY        _O_BINARY
  62 #define O_TEMPORARY     _O_TEMPORARY
  63 #define O_NOINHERIT     _O_NOINHERIT
  64 #define O_SEQUENTIAL    _O_SEQUENTIAL
  65 #define O_RANDOM        _O_RANDOM
  66
  67 #endif  /* Not _NO_OLDNAMES */
  68
  69 #endif  /* Not _FCNTL_H_ */