libio/oldiofopen.c

   1 /* Copyright (C) 1993,1997,1999,2000,2002,2003,2004,2012
   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, see
  17    <http://www.gnu.org/licenses/>.
  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 <shlib-compat.h>
  29 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
  30
  31 #define _IO_USE_OLD_IO_FILE
  32 #include "libioP.h"
  33 #include <stdlib.h>
  34
  35
  36 _IO_FILE *
  37 attribute_compat_text_section
  38 _IO_old_fopen (filename, mode)
  39      const char *filename;
  40      const char *mode;
  41 {
  42   struct locked_FILE
  43   {
  44     struct _IO_FILE_complete_plus fp;
  45 #ifdef _IO_MTSAFE_IO
  46     _IO_lock_t lock;
  47 #endif
  48   } *new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
  49
  50   if (new_f == NULL)
  51     return NULL;
  52 #ifdef _IO_MTSAFE_IO
  53   new_f->fp.file._file._lock = &new_f->lock;
  54 #endif
  55   _IO_old_init (&new_f->fp.file._file, 0);
  56   _IO_JUMPS ((struct _IO_FILE_plus *) &new_f->fp) = &_IO_old_file_jumps;
  57   _IO_old_file_init ((struct _IO_FILE_plus *) &new_f->fp);
  58 #if  !_IO_UNIFIED_JUMPTABLES
  59   new_f->fp.vtable = NULL;
  60 #endif
  61   if (_IO_old_file_fopen ((_IO_FILE *) &new_f->fp, filename, mode) != NULL)
  62     return (_IO_FILE *) &new_f->fp;
  63   INTUSE(_IO_un_link) ((struct _IO_FILE_plus *) &new_f->fp);
  64   free (new_f);
  65   return NULL;
  66 }
  67
  68 strong_alias (_IO_old_fopen, __old_fopen)
  69 compat_symbol (libc, _IO_old_fopen, _IO_fopen, GLIBC_2_0);
  70 compat_symbol (libc, __old_fopen, fopen, GLIBC_2_0);
  71 #endif