| 0,0 → 1,61 |
|---|
| /**************************************************************************** |
| * |
| * Open Watcom Project |
| * |
| * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
| * |
| * ======================================================================== |
| * |
| * This file contains Original Code and/or Modifications of Original |
| * Code as defined in and that are subject to the Sybase Open Watcom |
| * Public License version 1.0 (the 'License'). You may not use this file |
| * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
| * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
| * provided with the Original Code and Modifications, and is also |
| * available at www.sybase.com/developer/opensource. |
| * |
| * The Original Code and all software distributed under the License are |
| * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
| * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
| * NON-INFRINGEMENT. Please see the License for the specific language |
| * governing rights and limitations under the License. |
| * |
| * ======================================================================== |
| * |
| * Description: Platform independent ftell() implementaiton. |
| * |
| ****************************************************************************/ |
| |
| |
| #include "variety.h" |
| #include <stdio.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include "fileacc.h" |
| |
| |
| _WCRTLINK long ftell( FILE *fp ) |
| { |
| long pos; |
| |
| _ValidFile( fp, -1 ); |
| if( fp->_flag & _APPEND && fp->_flag & _DIRTY ) { |
| fflush( fp ); /* if data written in append mode, OS must know */ |
| } |
| pos = tell( fileno( fp ) ); |
| if( pos == -1 ) { |
| return( -1L ); |
| } |
| _AccessFile( fp ); |
| if( fp->_cnt != 0 ) { /* if something in buffer */ |
| if( fp->_flag & _DIRTY ) { /* last operation was a put */ |
| pos += fp->_cnt; |
| } else { /* last operation was a get */ |
| pos -= fp->_cnt; |
| } |
| } |
| _ReleaseFile( fp ); |
| return( pos ); |
| } |