/* Change owner and group of a file relative to open directory.  Hurd version.   Copyright (C) 2006 Free Software Foundation, Inc.   This file is part of the GNU C Library.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <errno.h>#include <fcntl.h>#include <stddef.h>#include <unistd.h>#include <sys/types.h>#include <hurd.h>#include <hurd/fd.h>/* Change the owner and group of FILE.  */intfchownat (fd, file, owner, group, flag)     int fd;     const char *file;     uid_t owner;     gid_t group;     int flag;{  error_t err;  file_t port = __file_name_lookup_at (fd, flag, file, 0, 0);  if (port == MACH_PORT_NULL)    return -1;  err = __file_chown (port, owner, group);  __mach_port_deallocate (__mach_task_self (), port);  if (err)    return __hurd_fail (err);  return 0;}