Source code of Windows XP (NT5)
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  1. /***
  2. *fcntl.h - file control options used by open()
  3. *
  4. * Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
  5. *
  6. *Purpose:
  7. * This file defines constants for the file control options used
  8. * by the _open() function.
  9. * [System V]
  10. *
  11. * [Public]
  12. *
  13. ****/
  14. #if _MSC_VER > 1000
  15. #pragma once
  16. #endif
  17. #ifndef _INC_FCNTL
  18. #define _INC_FCNTL
  19. #if !defined(_WIN32)
  20. #error ERROR: Only Win32 target supported!
  21. #endif
  22. #define _O_RDONLY 0x0000 /* open for reading only */
  23. #define _O_WRONLY 0x0001 /* open for writing only */
  24. #define _O_RDWR 0x0002 /* open for reading and writing */
  25. #define _O_APPEND 0x0008 /* writes done at eof */
  26. #define _O_CREAT 0x0100 /* create and open file */
  27. #define _O_TRUNC 0x0200 /* open and truncate */
  28. #define _O_EXCL 0x0400 /* open only if file doesn't already exist */
  29. /* O_TEXT files have <cr><lf> sequences translated to <lf> on read()'s,
  30. ** and <lf> sequences translated to <cr><lf> on write()'s
  31. */
  32. #define _O_TEXT 0x4000 /* file mode is text (translated) */
  33. #define _O_BINARY 0x8000 /* file mode is binary (untranslated) */
  34. /* macro to translate the C 2.0 name used to force binary mode for files */
  35. #define _O_RAW _O_BINARY
  36. /* Open handle inherit bit */
  37. #define _O_NOINHERIT 0x0080 /* child process doesn't inherit file */
  38. /* Temporary file bit - file is deleted when last handle is closed */
  39. #define _O_TEMPORARY 0x0040 /* temporary file bit */
  40. /* temporary access hint */
  41. #define _O_SHORT_LIVED 0x1000 /* temporary storage file, try not to flush */
  42. /* sequential/random access hints */
  43. #define _O_SEQUENTIAL 0x0020 /* file access is primarily sequential */
  44. #define _O_RANDOM 0x0010 /* file access is primarily random */
  45. #if !__STDC__ || defined(_POSIX_)
  46. /* Non-ANSI names for compatibility */
  47. #define O_RDONLY _O_RDONLY
  48. #define O_WRONLY _O_WRONLY
  49. #define O_RDWR _O_RDWR
  50. #define O_APPEND _O_APPEND
  51. #define O_CREAT _O_CREAT
  52. #define O_TRUNC _O_TRUNC
  53. #define O_EXCL _O_EXCL
  54. #define O_TEXT _O_TEXT
  55. #define O_BINARY _O_BINARY
  56. #define O_RAW _O_BINARY
  57. #define O_TEMPORARY _O_TEMPORARY
  58. #define O_NOINHERIT _O_NOINHERIT
  59. #define O_SEQUENTIAL _O_SEQUENTIAL
  60. #define O_RANDOM _O_RANDOM
  61. #endif /* __STDC__ */
  62. #endif /* _INC_FCNTL */