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_dos_creat

Syntax

 
#include <dos.h>

unsigned int _dos_creat(const char *filename, unsigned short attr,
                        int *handle);

Description

This is a direct connection to the MS-DOS creat function call (%ah = 0x3C). This function creates the given file with the given attribute and puts file handle into handle if creating is successful. If the file already exists it truncates the file to zero length. Meaning of attr parameter is the following:

_A_NORMAL (0x00)

Normal file (no read/write restrictions)

_A_RDONLY (0x01)

Read only file

_A_HIDDEN (0x02)

Hidden file

_A_SYSTEM (0x04)

System file

_A_ARCH (0x20)

Archive file

See also _dos_open, _dos_creatnew, _dos_read, _dos_write, and _dos_close.

This function does not support long filenames, even on systems where the LFN API (see section LFN) is available. For LFN-aware functions with similar functionality see _creat, and _creatnew. Also see creat, and open, which are Posix-standard.

Return Value

Returns 0 if successful or DOS error code on error (and sets errno)

Portability

ANSI/ISO C No
POSIX No

Example

 
int handle;

if ( !_dos_creat("FOO.DAT", _A_ARCH, &handle) )
   puts("Creating was successful !");

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  Copyright 2004   by DJ Delorie     Updated Apr 2004