mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 03:10:05 +00:00
db11c38c4d
2001-01-19 Mark Kettenis <kettenis@gnu.org> * sysdeps/mach/hurd/chroot.c (chroot): Revert 1999-02-27 changes, but change looking up the initial directory port in a similar way as done by _hurd_change_directory_port_from_name. * hurd/fchroot.c (fchroot): Likewise.
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* Copyright (C) 1999, 2001 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/fd.h>
|
|
#include <hurd/port.h>
|
|
|
|
/* Change the current root directory to FD. */
|
|
int
|
|
fchroot (int fd)
|
|
{
|
|
error_t err;
|
|
file_t dir;
|
|
|
|
err = HURD_DPORT_USE (fd,
|
|
({
|
|
dir = __file_name_lookup_under (port, ".", 0, 0);
|
|
dir == MACH_PORT_NULL ? errno : 0;
|
|
}));
|
|
|
|
if (! err)
|
|
{
|
|
file_t root;
|
|
|
|
/* Prevent going through DIR's .. */
|
|
err = __file_reparent (dir, MACH_PORT_NULL, &root);
|
|
__mach_port_deallocate (__mach_task_self (), dir);
|
|
if (! err)
|
|
_hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], root);
|
|
}
|
|
|
|
return err ? __hurd_fail (err) : 0;
|
|
}
|