libio/iofopen64.c

   1 /* Copyright (C) 1993, 1997, 1999, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.
  18
  19    As a special exception, if you link the code in this file with
  20    files compiled with a GNU compiler to produce an executable,
  21    that does not cause the resulting executable to be covered by
  22    the GNU Lesser General Public License.  This exception does not
  23    however invalidate any other reasons why the executable file
  24    might be covered by the GNU Lesser General Public License.
  25    This exception applies to code released by its copyright holders
  26    in files containing the exception.  */
  27
  28 #include "libioP.h"
  29 #ifdef __STDC__
  30 #include <stdlib.h>
  31 #endif
  32
  33 _IO_FILE *
  34 _IO_fopen64 (filename, mode)
  35      const char *filename;
  36      const char *mode;
  37 {
  38 #ifdef _G_OPEN64
  39   struct locked_FILE
  40   {
  41     struct _IO_FILE_plus fp;
  42 #ifdef _IO_MTSAFE_IO
  43     _IO_lock_t lock;
  44 #endif
  45     struct _IO_wide_data wd;
  46   } *new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
  47
  48   if (new_f == NULL)
  49     return NULL;
  50 #ifdef _IO_MTSAFE_IO
  51   new_f->fp.file._lock = &new_f->lock;
  52 #endif
  53   _IO_no_init (&new_f->fp.file, 0, 0, &new_f->wd, &_IO_wfile_jumps);
  54   _IO_JUMPS (&new_f->fp) = &_IO_file_jumps;
  55   _IO_file_init (&new_f->fp);
  56 #if  !_IO_UNIFIED_JUMPTABLES
  57   new_f->fp.vtable = NULL;
  58 #endif
  59   if (_IO_file_fopen ((_IO_FILE *) new_f, filename, mode, 0) != NULL)
  60     return (_IO_FILE *) &new_f->fp;
  61   _IO_un_link (&new_f->fp);
  62   free (new_f);
  63   return NULL;
  64 #else
  65   __set_errno (ENOSYS);
  66   return NULL;
  67 #endif
  68 }
  69
  70 #ifdef weak_alias
  71 weak_alias (_IO_fopen64, fopen64)
  72 #endif