1: /* Copyright (C) 1993, 1995-2001, 2002, 2003, 2004
    2:    Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4: 
    5:    The GNU C Library is free software; you can redistribute it and/or
    6:    modify it under the terms of the GNU Lesser General Public
    7:    License as published by the Free Software Foundation; either
    8:    version 2.1 of the License, or (at your option) any later version.
    9: 
   10:    The GNU C Library is distributed in the hope that it will be useful,
   11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13:    Lesser General Public License for more details.
   14: 
   15:    You should have received a copy of the GNU Lesser General Public
   16:    License along with the GNU C Library; if not, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.
   19: 
   20:    As a special exception, if you link the code in this file with
   21:    files compiled with a GNU compiler to produce an executable,
   22:    that does not cause the resulting executable to be covered by
   23:    the GNU Lesser General Public License.  This exception does not
   24:    however invalidate any other reasons why the executable file
   25:    might be covered by the GNU Lesser General Public License.
   26:    This exception applies to code released by its copyright holders
   27:    in files containing the exception.  */
   28: 
   29: #include "libioP.h"
   30: #include <errno.h>
   31: #include <stdlib.h>
   32: #include <shlib-compat.h>
   33: 
   34: int
   35: _IO_new_fgetpos (fp, posp)
   36:      _IO_FILE *fp;
   37:      _IO_fpos_t *posp;
   38: {
   39:   _IO_off64_t pos;
   40:   int result = 0;
   41:   CHECK_FILE (fp, EOF);
   42:   _IO_acquire_lock (fp);
   43:   pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0);
   44:   if (_IO_in_backup (fp) && pos != _IO_pos_BAD)
   45:     {
   46:       if (fp->_mode <= 0)
   47:         pos -= fp->_IO_save_end - fp->_IO_save_base;
   48:     }
   49:   if (pos == _IO_pos_BAD)
   50:     {
   51:       /* ANSI explicitly requires setting errno to a positive value on
   52:          failure.  */
   53: #ifdef EIO
   54:       if (errno == 0)
   55:         __set_errno (EIO);
   56: #endif
   57:       result = EOF;
   58:     }
   59:   else if ((_IO_off64_t) (__typeof (posp->__pos)) pos != pos)
   60:     {
   61: #ifdef EOVERFLOW
   62:       __set_errno (EOVERFLOW);
   63: #endif
   64:       result = EOF;
   65:     }
   66:   else
   67:     {
   68:       posp->__pos = pos;
   69:       if (fp->_mode > 0
   70:           && (*fp->_codecvt->__codecvt_do_encoding) (fp->_codecvt) < 0)
   71:         /* This is a stateful encoding, safe the state.  */
   72:         posp->__state = fp->_wide_data->_IO_state;
   73:     }
   74: 
   75:   _IO_release_lock (fp);
   76:   return result;
   77: }
   78: 
   79: strong_alias (_IO_new_fgetpos, __new_fgetpos)
   80: versioned_symbol (libc, _IO_new_fgetpos, _IO_fgetpos, GLIBC_2_2);
   81: versioned_symbol (libc, __new_fgetpos, fgetpos, GLIBC_2_2);