sysdeps/mach/hurd/fchmodat.c

   1 /* Change the protections of file relative to open directory.  Hurd version.
   2    Copyright (C) 2006-2014 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 <stddef.h>
  22 #include <unistd.h>
  23 #include <sys/types.h>
  24 #include <hurd.h>
  25 #include <hurd/fd.h>
  26
  27 int
  28 fchmodat (fd, file, mode, flag)
  29      int fd;
  30      const char *file;
  31      mode_t mode;
  32      int flag;
  33 {
  34   error_t err;
  35   file_t port = __file_name_lookup_at (fd, flag, file, 0, 0);
  36   if (port == MACH_PORT_NULL)
  37     return -1;
  38   err = __file_chmod (port, mode);
  39   __mach_port_deallocate (__mach_task_self (), port);
  40   if (err)
  41     return __hurd_fail (err);
  42   return 0;
  43 }