sysdeps/mach/hurd/open.c

   1 /* Copyright (C) 1992,93,94,95,97,2000,2002,2006 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 <stdio.h>
  22 #include <hurd.h>
  23 #include <hurd/fd.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_open (const char *file, int oflag, ...)
  29 {
  30   mode_t mode;
  31   io_t port;
  32
  33   if (oflag & O_CREAT)
  34     {
  35       va_list arg;
  36       va_start (arg, oflag);
  37       mode = va_arg (arg, mode_t);
  38       va_end (arg);
  39     }
  40   else
  41     mode = 0;
  42
  43   port = __file_name_lookup (file, oflag, mode);
  44   if (port == MACH_PORT_NULL)
  45     return -1;
  46
  47   return _hurd_intern_fd (port, oflag, 1);
  48 }
  49
  50 libc_hidden_def (__libc_open)
  51 weak_alias (__libc_open, __open)
  52 libc_hidden_weak (__open)
  53 weak_alias (__libc_open, open)
  54
  55 int
  56 __open_2 (file, oflag)
  57      const char *file;
  58      int oflag;
  59 {
  60   if (oflag & O_CREAT)
  61     __fortify_fail ("invalid open call: O_CREAT without mode");
  62
  63   return __open (file, oflag);
  64 }
  65
  66 /* open64 is just the same as open for us.  */
  67 weak_alias (__libc_open, __libc_open64)
  68 weak_alias (__libc_open, __open64)
  69 libc_hidden_weak (_open64)
  70 weak_alias (__libc_open, open64)
  71 strong_alias (__open_2, __open64_2)