io/open64.c

   1 /* Copyright (C) 1991-2013 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <fcntl.h>
  20 #include <stdarg.h>
  21 #include <stddef.h>
  22 #include <stdio.h>
  23
  24 /* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
  25    a third argument is the file protection.  */
  26 int
  27 __libc_open64 (file, oflag)
  28      const char *file;
  29      int oflag;
  30 {
  31   int mode;
  32
  33   if (file == NULL)
  34     {
  35       __set_errno (EINVAL);
  36       return -1;
  37     }
  38
  39   if (oflag & O_CREAT)
  40     {
  41       va_list arg;
  42       va_start (arg, oflag);
  43       mode = va_arg (arg, int);
  44       va_end (arg);
  45     }
  46
  47   __set_errno (ENOSYS);
  48   return -1;
  49 }
  50 strong_alias (__libc_open64, __open64)
  51 libc_hidden_def (__open64)
  52 weak_alias (__libc_open64, open64)
  53
  54 stub_warning (open64)
  55
  56
  57 int
  58 __open64_2 (file, oflag)
  59      const char *file;
  60      int oflag;
  61 {
  62   if (oflag & O_CREAT)
  63     __fortify_fail ("invalid open64 call: O_CREAT without mode");
  64
  65   return __open64 (file, oflag);
  66 }
  67 stub_warning (__open64_2)