68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
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/***
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*fgetpos.c - Contains the fgetpos runtime
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*
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* Copyright (c) 1987-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Get file position (in an internal format).
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*
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*Revision History:
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* 01-16-87 JCR Module created.
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* 12-11-87 JCR Added "_LOAD_DS" to declaration
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* 02-15-90 GJF Fixed copyright and indents
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* 03-16-90 GJF Replaced _LOAD_DS with _CALLTYPE1 and added #include
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* <cruntime.h>.
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* 10-02-90 GJF New-style function declarator.
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* 04-06-93 SKS Replace _CRTAPI* with __cdecl
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* 12-23-94 GJF Use 64-bit file position (_ftelli64) for non-_MAC_.
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* 01-05-94 GJF Temporarily commented out above change due to MFC/IDE
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* bugs.
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* 01-24-95 GJF Restored 64-bit fpos_t support.
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* 06-28-96 SKS Enable 64-bit fpos_t support for the MAC
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* 05-17-99 PML Remove all Macintosh support.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <stdio.h>
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#include <internal.h>
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/***
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*int fgetpos(stream,pos) - Get file position (internal format)
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*
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*Purpose:
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* Fgetpos gets the current file position for the file identified by
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* [stream]. The file position is returned in the object pointed to
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* by [pos] and is in internal format; that is, the user is not supposed
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* to interpret the value but simply use it in the fsetpos call. Our
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* implementation simply uses fseek/ftell.
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*
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*Entry:
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* FILE *stream = pointer to a file stream value
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* fpos_t *pos = pointer to a file position value
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*
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*Exit:
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* Successful fgetpos call returns 0.
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* Unsuccessful fgetpos call returns non-zero (!0) value and sets
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* ERRNO (this is done by ftell and passed back by fgetpos).
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*
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*Exceptions:
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* None.
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*
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*******************************************************************************/
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int __cdecl fgetpos (
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FILE *stream,
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fpos_t *pos
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)
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{
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#ifdef _POSIX_
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if ( (*pos = ftell(stream)) != -1L )
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#else
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if ( (*pos = _ftelli64(stream)) != -1i64 )
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#endif
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return(0);
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else
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return(-1);
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}
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