win32/include/fcntl.h

   1 /*
   2  * fcntl.h
   3  *
   4  * Access constants for _open. Note that the permissions constants are
   5  * in sys/stat.h (ick).
   6  *
   7  * This code is part of the Mingw32 package.
   8  *
   9  * Contributors:
  10  *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
  11  *
  12  *  THIS SOFTWARE IS NOT COPYRIGHTED
  13  *
  14  *  This source code is offered for use in the public domain. You may
  15  *  use, modify or distribute it freely.
  16  *
  17  *  This code is distributed in the hope that it will be useful but
  18  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  19  *  DISCLAIMED. This includes but is not limited to warranties of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  21  *
  22  * $Revision: 1.2 $
  23  * $Author: bellard $
  24  * $Date: 2005/04/17 13:14:29 $
  25  *
  26  */
  27
  28 #ifndef __STRICT_ANSI__
  29
  30 #ifndef _FCNTL_H_
  31 #define _FCNTL_H_
  32
  33 /* All the headers include this file. */
  34 #include <_mingw.h>
  35
  36 /*
  37  * It appears that fcntl.h should include io.h for compatibility...
  38  */
  39 #include <io.h>
  40
  41 /* Specifiy one of these flags to define the access mode. */
  42 #define _O_RDONLY       0
  43 #define _O_WRONLY       1
  44 #define _O_RDWR         2
  45
  46 /* Mask for access mode bits in the _open flags. */
  47 #define _O_ACCMODE      (_O_RDONLY|_O_WRONLY|_O_RDWR)
  48
  49 #define _O_APPEND       0x0008  /* Writes will add to the end of the file. */
  50
  51 #define _O_RANDOM       0x0010
  52 #define _O_SEQUENTIAL   0x0020
  53 #define _O_TEMPORARY    0x0040  /* Make the file dissappear after closing.
  54                                  * WARNING: Even if not created by _open! */
  55 #define _O_NOINHERIT    0x0080
  56
  57 #define _O_CREAT        0x0100  /* Create the file if it does not exist. */
  58 #define _O_TRUNC        0x0200  /* Truncate the file if it does exist. */
  59 #define _O_EXCL         0x0400  /* Open only if the file does not exist. */
  60
  61 /* NOTE: Text is the default even if the given _O_TEXT bit is not on. */
  62 #define _O_TEXT         0x4000  /* CR-LF in file becomes LF in memory. */
  63 #define _O_BINARY       0x8000  /* Input and output is not translated. */
  64 #define _O_RAW          _O_BINARY
  65
  66 #ifndef _NO_OLDNAMES
  67
  68 /* POSIX/Non-ANSI names for increased portability */
  69 #define O_RDONLY        _O_RDONLY
  70 #define O_WRONLY        _O_WRONLY
  71 #define O_RDWR          _O_RDWR
  72 #define O_ACCMODE       _O_ACCMODE
  73 #define O_APPEND        _O_APPEND
  74 #define O_CREAT         _O_CREAT
  75 #define O_TRUNC         _O_TRUNC
  76 #define O_EXCL          _O_EXCL
  77 #define O_TEXT          _O_TEXT
  78 #define O_BINARY        _O_BINARY
  79 #define O_TEMPORARY     _O_TEMPORARY
  80 #define O_NOINHERIT     _O_NOINHERIT
  81 #define O_SEQENTIAL     _O_SEQUENTIAL
  82 #define O_RANDOM        _O_RANDOM
  83
  84 #endif  /* Not _NO_OLDNAMES */
  85
  86
  87 #ifndef RC_INVOKED
  88
  89 /*
  90  * This variable determines the default file mode.
  91  * TODO: Which flags work?
  92  */
  93 #ifndef __DECLSPEC_SUPPORTED
  94
  95 #ifdef __MSVCRT__
  96 extern unsigned int* __imp__fmode;
  97 #define _fmode  (*__imp__fmode)
  98 #else
  99 /* CRTDLL */
 100 extern unsigned int* __imp__fmode_dll;
 101 #define _fmode  (*__imp__fmode_dll)
 102 #endif
 103
 104 #else /* __DECLSPEC_SUPPORTED */
 105
 106 #ifdef __MSVCRT__
 107 __MINGW_IMPORT unsigned int _fmode;
 108 #else /* ! __MSVCRT__ */
 109 __MINGW_IMPORT unsigned int _fmode_dll;
 110 #define _fmode  _fmode_dll
 111 #endif /* ! __MSVCRT__ */
 112
 113 #endif /* __DECLSPEC_SUPPORTED */
 114
 115
 116 #ifdef  __cplusplus
 117 extern "C" {
 118 #endif
 119
 120 int     _setmode (int, int);
 121
 122 #ifndef _NO_OLDNAMES
 123 int     setmode (int, int);
 124 #endif  /* Not _NO_OLDNAMES */
 125
 126 #ifdef  __cplusplus
 127 }
 128 #endif
 129
 130 #endif  /* Not RC_INVOKED */
 131
 132 #endif  /* Not _FCNTL_H_ */
 133
 134 #endif  /* Not __STRICT_ANSI__ */
 135