59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
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/* fcntl.h
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Define flag values accessible to open.
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Copyright (c) Borland International 1987,1988,1990
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All Rights Reserved.
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*/
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#if __STDC__
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#define _Cdecl
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#else
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#define _Cdecl cdecl
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#endif
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#ifndef __PAS__
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#define _CType _Cdecl
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#else
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#define _CType pascal
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#endif
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extern int _Cdecl _fmode;
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/* The first three can only be set by open */
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#define O_RDONLY 1
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#define O_WRONLY 2
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#define O_RDWR 4
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/* Flag values for open only */
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#define O_CREAT 0x0100 /* create and open file */
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#define O_TRUNC 0x0200 /* open with truncation */
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#define O_EXCL 0x0400 /* exclusive open */
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/* The "open flags" defined above are not needed after open, hence they
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are re-used for other purposes when the file is running. Sorry, its
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getting crowded !
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*/
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#define _O_RUNFLAGS 0x0700
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#define _O_EOF 0x0200 /* set when text file hits ^Z */
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/* a file in append mode may be written to only at its end.
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*/
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#define O_APPEND 0x0800 /* to end of file */
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/* MSDOS special bits */
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#define O_CHANGED 0x1000 /* user may read these bits, but */
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#define O_DEVICE 0x2000 /* only RTL\io functions may touch. */
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#define O_TEXT 0x4000 /* CR-LF translation */
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#define O_BINARY 0x8000 /* no translation */
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/* DOS 3.x options */
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#define O_NOINHERIT 0x80
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#define O_DENYALL 0x10
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#define O_DENYWRITE 0x20
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#define O_DENYREAD 0x30
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#define O_DENYNONE 0x40
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