io/open64.c

   1 /* Copyright (C) 1991, 1995, 1996, 1997, 1999, 2000, 2002, 2007
   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 #include <errno.h>
  20 #include <fcntl.h>
  21 #include <stdarg.h>
  22 #include <stddef.h>
  23 #include <stdio.h>
  24
  25 /* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
  26    a third argument is the file protection.  */
  27 int
  28 __libc_open64 (file, oflag)
  29      const char *file;
  30      int oflag;
  31 {
  32   int mode;
  33
  34   if (file == NULL)
  35     {
  36       __set_errno (EINVAL);
  37       return -1;
  38     }
  39
  40   if (oflag & O_CREAT)
  41     {
  42       va_list arg;
  43       va_start (arg, oflag);
  44       mode = va_arg (arg, int);
  45       va_end (arg);
  46     }
  47
  48   __set_errno (ENOSYS);
  49   return -1;
  50 }
  51 strong_alias (__libc_open64, __open64)
  52 libc_hidden_def (__open64)
  53 weak_alias (__libc_open64, open64)
  54
  55 stub_warning (open64)
  56
  57
  58 int
  59 __open64_2 (file, oflag)
  60      const char *file;
  61      int oflag;
  62 {
  63   if (oflag & O_CREAT)
  64     __fortify_fail ("invalid open64 call: O_CREAT without mode");
  65
  66   return __open64 (file, oflag);
  67 }
  68 stub_warning (__open64_2)