sysdeps/mach/hurd/open.c

   1 /* Copyright (C) 1992-2024 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    <https://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 #include <sysdep-cancel.h>
  25
  26 /* Open FILE with access OFLAG.  If O_CREAT or O_TMPFILE is in OFLAG,
  27    a third argument is the file protection.  */
  28 int
  29 __libc_open (const char *file, int oflag, ...)
  30 {
  31   mode_t mode;
  32   io_t port;
  33   int cancel_oldtype;
  34
  35   if (__OPEN_NEEDS_MODE (oflag))
  36     {
  37       va_list arg;
  38       va_start (arg, oflag);
  39       mode = va_arg (arg, mode_t);
  40       va_end (arg);
  41     }
  42   else
  43     mode = 0;
  44
  45   cancel_oldtype = LIBC_CANCEL_ASYNC();
  46   port = __file_name_lookup (file, oflag, mode);
  47   LIBC_CANCEL_RESET (cancel_oldtype);
  48
  49   if (port == MACH_PORT_NULL)
  50     return -1;
  51
  52   return _hurd_intern_fd (port, oflag, 1);
  53 }
  54
  55 libc_hidden_def (__libc_open)
  56 weak_alias (__libc_open, __open)
  57 libc_hidden_weak (__open)
  58 weak_alias (__libc_open, open)
  59
  60
  61 /* open64 is just the same as open for us.  */
  62 weak_alias (__libc_open, __libc_open64)
  63 weak_alias (__libc_open, __open64)
  64 libc_hidden_weak (__open64)
  65 weak_alias (__libc_open, open64)