sysdeps/mach/hurd/lchown.c

   1 /* Copyright (C) 1991-2014 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 <stddef.h>
  20 #include <unistd.h>
  21 #include <hurd.h>
  22 #include <fcntl.h>
  23
  24 /* Change the owner and group of FILE; if it's a link, do the link and
  25    not the target.  */
  26 int
  27 __lchown (file, owner, group)
  28      const char *file;
  29      uid_t owner;
  30      gid_t group;
  31 {
  32   error_t err;
  33   file_t port = __file_name_lookup (file, O_NOLINK, 0);
  34   if (port == MACH_PORT_NULL)
  35     return -1;
  36   err = __file_chown (port, owner, group);
  37   __mach_port_deallocate (__mach_task_self (), port);
  38   if (err)
  39     return __hurd_fail (err);
  40   return 0;
  41 }
  42
  43 weak_alias (__lchown, lchown)