io/faccessat.c

   1 /* Test for access to file, relative to open directory.  Stub version.
   2    Copyright (C) 2006 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <fcntl.h>
  22 #include <stddef.h>
  23 #include <unistd.h>
  24 #include <sys/types.h>
  25
  26 int
  27 faccessat (fd, file, type, flag)
  28      int fd;
  29      const char *file;
  30      int type;
  31      int flag;
  32 {
  33   if (file == NULL || (flag & ~(AT_SYMLINK_NOFOLLOW | AT_EACCESS)) != 0
  34       || (type & ~(R_OK|W_OK|X_OK|F_OK)) != 0)
  35     {
  36       __set_errno (EINVAL);
  37       return -1;
  38     }
  39
  40   if (fd < 0 && fd != AT_FDCWD)
  41     {
  42       __set_errno (EBADF);
  43       return -1;
  44     }
  45
  46   __set_errno (ENOSYS);
  47   return -1;
  48 }
  49 stub_warning (faccessat)
  50
  51 #include <stub-tag.h>