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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 The ScummVM project
*
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "yslib.h"
namespace Saga {
int ys_get_filesize(FILE * file_p, unsigned long *len_p, int *p_errno)
/*--------------------------------------------------------------------------*\
* Returns the 'size' of the specified file. The file must be opened in
* binary mode. Note that not all operating systems support determing the
* exact end of a binary file stream, so this function is limited in
* portability.
\*--------------------------------------------------------------------------*/
{
long f_pos;
long f_len;
f_pos = ftell(file_p);
if (f_pos == -1) {
*p_errno = errno;
return YS_E_FAILURE;
}
fseek(file_p, 0, SEEK_END);
f_len = ftell(file_p);
if (f_pos == -1) {
*p_errno = errno;
return YS_E_FAILURE;
}
fseek(file_p, f_pos, SEEK_SET);
*len_p = (unsigned long)f_len;
return YS_E_SUCCESS;;
}
} // End of namespace Saga
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