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1999-02-27 Roland McGrath <roland@baalperazim.frob.com>

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* sysdeps/mach/getsysstats.c (__get_nprocs_conf, __get_nprocs,
	__get_phys_pages): Cast &HBI to silence warning.

	* hurd/Makefile (routines): Add hurdchdir and hurdfchdir.
	* hurd/hurdchdir.c: New file.
	* hurd/hurdfchdir.c: New file.
	* sysdeps/mach/hurd/chroot.c: Call
	_hurd_change_directory_port_from_name to do the work.
	* sysdeps/mach/hurd/chdir.c: Likewise.
	* sysdeps/mach/hurd/fchdir.c: Call
	_hurd_change_directory_port_from_fd to do the work.
	* hurd/fchroot.c: Likewise.
	* hurd/hurd.h: Declare them.
This commit is contained in:
Roland McGrath 1999-02-27 20:06:34 +00:00
parent 4014b2cf34
commit e8f51d56d4
9 changed files with 141 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
ChangeLog
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@ -1,3 +1,19 @@
1999-02-27 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/getsysstats.c (__get_nprocs_conf, __get_nprocs,
__get_phys_pages): Cast &HBI to silence warning.
* hurd/Makefile (routines): Add hurdchdir and hurdfchdir.
* hurd/hurdchdir.c: New file.
* hurd/hurdfchdir.c: New file.
* sysdeps/mach/hurd/chroot.c: Call
_hurd_change_directory_port_from_name to do the work.
* sysdeps/mach/hurd/chdir.c: Likewise.
* sysdeps/mach/hurd/fchdir.c: Call
_hurd_change_directory_port_from_fd to do the work.
* hurd/fchroot.c: Likewise.
* hurd/hurd.h: Declare them.
1999-02-27 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-load.c (lose): Add more comments to explain the `why'.

3
hurd/Makefile
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@ -1,4 +1,4 @@
# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
# Copyright (C) 1991,92,93,94,95,96,97,98,99 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
@ -48,6 +48,7 @@ routines = hurdstartup hurdinit \
pid2task task2pid \
geteuids seteuids getumask fchroot \
hurdsock hurdauth \
hurdchdir hurdfchdir \
privports \
msgportdemux \
fopenport \

23
hurd/fchroot.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
/* Copyright (C) 1999 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
@ -25,23 +25,6 @@
int
fchroot (int fd)
{
error_t err;
file_t dir;
err = HURD_DPORT_USE (fd,
({
dir = __file_name_lookup_under (port, "", O_EXEC, 0);
dir == MACH_PORT_NULL ? errno : 0;
}));
if (! err)
{
file_t root;
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;
return _hurd_change_directory_port_from_fd (&_hurd_ports[INIT_PORT_CRDIR],
fd);
}

13
hurd/hurd.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
/* Copyright (C) 1993,94,95,96,97,98,99 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
@ -155,6 +155,17 @@ extern int setcttyid (mach_port_t);
extern int __setauth (auth_t), setauth (auth_t);
/* Modify a port cell by looking up a directory name.
This verifies that it is a directory and that we have search permission. */
extern int _hurd_change_directory_port_from_name (struct hurd_port *portcell,
const char *name);
/* Same thing, but using an open file descriptor.
Also verifies that it is a directory and that we have search permission. */
extern int _hurd_change_directory_port_from_fd (struct hurd_port *portcell,
int fd);
/* Get and set the effective UID set. */
extern int geteuids (int __n, uid_t *__uidset);
extern int seteuids (int __n, const uid_t *__uidset);

56
hurd/hurdchdir.c Normal file
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@ -0,0 +1,56 @@
/* Change a port cell to a directory by looking up a name.
Copyright (C) 1999 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 <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/port.h>
#include <hurd/fd.h>
#include <fcntl.h>
int
_hurd_change_directory_port_from_name (struct hurd_port *portcell,
const char *name)
{
size_t len;
const char *lookup;
file_t dir;
/* Append trailing "/." to directory name to force ENOTDIR if it's not a
directory and EACCES if we don't have search permission. */
len = strlen (name);
if (name[len - 2] == '/' && name[len - 1] == '.')
lookup = name;
else
{
char *n = alloca (len + 2);
memcpy (n, name, len);
n[len] = '/';
n[len + 1] = '.';
n[len + 2] = '\0';
lookup = n;
}
dir = __file_name_lookup (lookup, 0, 0);
if (dir == MACH_PORT_NULL)
return -1;
_hurd_port_set (portcell, dir);
return 0;
}

43
hurd/hurdfchdir.c Normal file
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@ -0,0 +1,43 @@
/* Change a port cell to a directory in an open file descriptor.
Copyright (C) 1999 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 <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/port.h>
#include <hurd/fd.h>
#include <fcntl.h>
int
_hurd_change_directory_port_from_fd (struct hurd_port *portcell, 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)
_hurd_port_set (portcell, dir);
return err ? __hurd_fail (err) : 0;
}

16
sysdeps/mach/hurd/chdir.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,94,95,97,99 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
@ -26,18 +26,8 @@ int
__chdir (file_name)
const char *file_name;
{
file_t file, dir;
file = __file_name_lookup (file_name, O_EXEC, 0);
if (file == MACH_PORT_NULL)
return -1;
dir = __file_name_lookup_under (file, "", O_EXEC, 0);
__mach_port_deallocate (__mach_task_self (), file);
if (dir == MACH_PORT_NULL)
return -1;
_hurd_port_set (&_hurd_ports[INIT_PORT_CWDIR], dir);
return 0;
return _hurd_change_directory_port_from_name (&_hurd_ports[INIT_PORT_CWDIR],
file_name);
}
weak_alias (__chdir, chdir)

23
sysdeps/mach/hurd/chroot.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,94,95,97,99 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
@ -30,23 +30,6 @@ int
chroot (file_name)
const char *file_name;
{
error_t err;
file_t file, dir, root;
file = __file_name_lookup (file_name, O_EXEC, 0);
if (file == MACH_PORT_NULL)
return -1;
dir = __file_name_lookup_under (file, "", O_EXEC, 0);
__mach_port_deallocate (__mach_task_self (), file);
if (dir == MACH_PORT_NULL)
return -1;
/* Prevent going through DIR's .. */
err = __file_reparent (dir, MACH_PORT_NULL, &root);
__mach_port_deallocate (__mach_task_self (), dir);
if (err)
return __hurd_fail (err);
_hurd_port_set (&_hurd_ports[INIT_PORT_CRDIR], root);
return 0;
return _hurd_change_directory_port_from_name (&_hurd_ports[INIT_PORT_CRDIR],
file_name);
}

18
sysdeps/mach/hurd/fchdir.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,93,94,95,96,97,99 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
@ -21,7 +21,6 @@
#include <hurd.h>
#include <hurd/port.h>
#include <hurd/fd.h>
#include <fcntl.h>
/* Change the current directory to FD. */
@ -29,18 +28,7 @@ int
__fchdir (fd)
int fd;
{
error_t err;
file_t dir;
err = HURD_DPORT_USE (fd,
({
dir = __file_name_lookup_under (port, "", O_EXEC, 0);
dir == MACH_PORT_NULL ? errno : 0;
}));
if (! err)
_hurd_port_set (&_hurd_ports[INIT_PORT_CWDIR], dir);
return err ? __hurd_fail (err) : 0;
return _hurd_change_directory_port_from_fd (&_hurd_ports[INIT_PORT_CWDIR],
fd);
}
weak_alias (__fchdir, fchdir)