glibc/hurd/fchroot.c
1995-02-18 01:27:10 +00:00

44 lines
1.3 KiB
C

/* Copyright (C) 1991, 1992, 1993, 1994 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Change the current root directory to FD. */
int
DEFUN(fchroot, (fd), int fd)
{
error_t err;
file_t dir;
err = __USEPORT (CRDIR,
({ file_t crdir = port;
HURD_DPORT_USE (fd,
__hurd_file_name_lookup (crdir, port, "",
0, 0, &dir));
}));
if (err)
return __hurd_fail (err);
_hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], dir);
return 0;
}