mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
421 lines
9.6 KiB
C
421 lines
9.6 KiB
C
/* Copyright (C) 1992, 1994, 1995, 1996, 1997 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 <hurd.h>
|
||
#include <hurd/msg_server.h>
|
||
#include <hurd/fd.h>
|
||
#include <unistd.h>
|
||
#include <limits.h>
|
||
#include <string.h>
|
||
#include <argz.h>
|
||
|
||
|
||
#define AUTHCHECK \
|
||
if (auth != mach_task_self () && ! __USEPORT (AUTH, port == auth)) \
|
||
return EPERM
|
||
|
||
|
||
/* Snarfing and frobbing the init ports. */
|
||
|
||
kern_return_t
|
||
_S_msg_get_init_port (mach_port_t msgport, mach_port_t auth, int which,
|
||
mach_port_t *result, mach_msg_type_name_t *result_type)
|
||
{
|
||
AUTHCHECK;
|
||
*result_type = MACH_MSG_TYPE_MOVE_SEND;
|
||
/* This function adds a new user reference for the *RESULT it gives back.
|
||
Our reply message uses a move-send right that consumes this reference. */
|
||
return _hurd_ports_get (which, result);
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_init_port (mach_port_t msgport, mach_port_t auth,
|
||
int which, mach_port_t port)
|
||
{
|
||
error_t err;
|
||
|
||
AUTHCHECK;
|
||
|
||
err = _hurd_ports_set (which, port);
|
||
if (err == 0)
|
||
__mach_port_deallocate (__mach_task_self (), port);
|
||
|
||
return 0;
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_get_init_ports (mach_port_t msgport, mach_port_t auth,
|
||
mach_port_t **ports,
|
||
mach_msg_type_name_t *ports_type,
|
||
mach_msg_type_number_t *nports)
|
||
{
|
||
mach_msg_type_number_t i;
|
||
error_t err;
|
||
|
||
AUTHCHECK;
|
||
|
||
if (err = __vm_allocate (__mach_task_self (), (vm_address_t *) ports,
|
||
_hurd_nports * sizeof (mach_port_t), 1))
|
||
return err;
|
||
*nports = _hurd_nports;
|
||
|
||
for (i = 0; i < _hurd_nports; ++i)
|
||
/* This function adds a new user ref for the *RESULT it gives back.
|
||
Our reply message uses move-send rights that consumes this ref. */
|
||
if (err = _hurd_ports_get (i, &(*ports)[i]))
|
||
{
|
||
/* Died part way through. Deallocate the ports already fetched. */
|
||
while (i-- > 0)
|
||
__mach_port_deallocate (__mach_task_self (), (*ports)[i]);
|
||
__vm_deallocate (__mach_task_self (),
|
||
(vm_address_t) *ports,
|
||
*nports * sizeof (mach_port_t));
|
||
return err;
|
||
}
|
||
|
||
*ports_type = MACH_MSG_TYPE_MOVE_SEND;
|
||
return 0;
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_init_ports (mach_port_t msgport, mach_port_t auth,
|
||
mach_port_t *ports, mach_msg_type_number_t nports)
|
||
{
|
||
mach_msg_type_number_t i;
|
||
error_t err;
|
||
|
||
AUTHCHECK;
|
||
|
||
for (i = 0; i < _hurd_nports; ++i)
|
||
{
|
||
if (err = _hurd_ports_set (i, ports[i]))
|
||
return err;
|
||
else
|
||
__mach_port_deallocate (__mach_task_self (), ports[i]);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Snarfing and frobbing the init ints. */
|
||
|
||
static kern_return_t
|
||
get_int (int which, int *value)
|
||
{
|
||
switch (which)
|
||
{
|
||
case INIT_UMASK:
|
||
*value = _hurd_umask;
|
||
return 0;
|
||
case INIT_SIGMASK:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
__spin_lock (&ss->lock);
|
||
*value = ss->blocked;
|
||
__spin_unlock (&ss->lock);
|
||
return 0;
|
||
}
|
||
case INIT_SIGPENDING:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
__spin_lock (&ss->lock);
|
||
*value = ss->pending;
|
||
__spin_unlock (&ss->lock);
|
||
return 0;
|
||
}
|
||
case INIT_SIGIGN:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
sigset_t ign;
|
||
int sig;
|
||
__spin_lock (&ss->lock);
|
||
__sigemptyset (&ign);
|
||
for (sig = 1; sig < NSIG; ++sig)
|
||
if (ss->actions[sig].sa_handler == SIG_IGN)
|
||
__sigaddset (&ign, sig);
|
||
__spin_unlock (&ss->lock);
|
||
*value = ign;
|
||
return 0;
|
||
}
|
||
default:
|
||
return EINVAL;
|
||
}
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_get_init_int (mach_port_t msgport, mach_port_t auth,
|
||
int which, int *value)
|
||
{
|
||
AUTHCHECK;
|
||
|
||
return get_int (which, value);
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_get_init_ints (mach_port_t msgport, mach_port_t auth,
|
||
int **values, mach_msg_type_number_t *nvalues)
|
||
{
|
||
error_t err;
|
||
mach_msg_type_number_t i;
|
||
|
||
AUTHCHECK;
|
||
|
||
if (err = __vm_allocate (__mach_task_self (), (vm_address_t *) values,
|
||
INIT_INT_MAX * sizeof (int), 1))
|
||
return err;
|
||
*nvalues = INIT_INT_MAX;
|
||
|
||
for (i = 0; i < INIT_INT_MAX; ++i)
|
||
switch (err = get_int (i, &(*values)[i]))
|
||
{
|
||
case 0: /* Success. */
|
||
break;
|
||
case EINVAL: /* Unknown index. */
|
||
(*values)[i] = 0;
|
||
break;
|
||
default: /* Lossage. */
|
||
__vm_deallocate (__mach_task_self (),
|
||
(vm_address_t) *values, INIT_INT_MAX * sizeof (int));
|
||
return err;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static kern_return_t
|
||
set_int (int which, int value)
|
||
{
|
||
switch (which)
|
||
{
|
||
case INIT_UMASK:
|
||
_hurd_umask = value;
|
||
return 0;
|
||
|
||
/* These are pretty odd things to do. But you asked for it. */
|
||
case INIT_SIGMASK:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
__spin_lock (&ss->lock);
|
||
ss->blocked = value;
|
||
__spin_unlock (&ss->lock);
|
||
return 0;
|
||
}
|
||
case INIT_SIGPENDING:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
__spin_lock (&ss->lock);
|
||
ss->pending = value;
|
||
__spin_unlock (&ss->lock);
|
||
return 0;
|
||
}
|
||
case INIT_SIGIGN:
|
||
{
|
||
struct hurd_sigstate *ss = _hurd_thread_sigstate (_hurd_sigthread);
|
||
int sig;
|
||
const sigset_t ign = value;
|
||
__spin_lock (&ss->lock);
|
||
for (sig = 1; sig < NSIG; ++sig)
|
||
{
|
||
if (__sigismember (&ign, sig))
|
||
ss->actions[sig].sa_handler = SIG_IGN;
|
||
else if (ss->actions[sig].sa_handler == SIG_IGN)
|
||
ss->actions[sig].sa_handler = SIG_DFL;
|
||
}
|
||
__spin_unlock (&ss->lock);
|
||
return 0;
|
||
|
||
case INIT_TRACEMASK:
|
||
_hurdsig_traced = value;
|
||
return 0;
|
||
}
|
||
default:
|
||
return EINVAL;
|
||
}
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_init_int (mach_port_t msgport, mach_port_t auth,
|
||
int which, int value)
|
||
{
|
||
AUTHCHECK;
|
||
|
||
return set_int (which, value);
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_init_ints (mach_port_t msgport, mach_port_t auth,
|
||
int *values, mach_msg_type_number_t nvalues)
|
||
{
|
||
error_t err;
|
||
mach_msg_type_number_t i;
|
||
|
||
AUTHCHECK;
|
||
|
||
for (i = 0; i < INIT_INT_MAX; ++i)
|
||
switch (err = set_int (i, values[i]))
|
||
{
|
||
case 0: /* Success. */
|
||
break;
|
||
case EINVAL: /* Unknown index. */
|
||
break;
|
||
default: /* Lossage. */
|
||
return err;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
kern_return_t
|
||
_S_msg_get_fd (mach_port_t msgport, mach_port_t auth, int which,
|
||
mach_port_t *result, mach_msg_type_name_t *result_type)
|
||
{
|
||
AUTHCHECK;
|
||
|
||
/* This creates a new user reference for the send right.
|
||
Our reply message will move that reference to the caller. */
|
||
*result = __getdport (which);
|
||
if (*result == MACH_PORT_NULL)
|
||
return errno;
|
||
*result_type = MACH_MSG_TYPE_MOVE_SEND;
|
||
|
||
return 0;
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_fd (mach_port_t msgport, mach_port_t auth,
|
||
int which, mach_port_t port)
|
||
{
|
||
AUTHCHECK;
|
||
|
||
/* We consume the reference if successful. */
|
||
return HURD_FD_USE (which, (_hurd_port2fd (descriptor, port, 0), 0));
|
||
}
|
||
|
||
/* Snarfing and frobbing environment variables. */
|
||
|
||
kern_return_t
|
||
_S_msg_get_env_variable (mach_port_t msgport,
|
||
char *variable,
|
||
char **data, mach_msg_type_number_t *datalen)
|
||
{
|
||
error_t err;
|
||
mach_msg_type_number_t valuelen;
|
||
const char *value = getenv (variable);
|
||
|
||
if (value == NULL)
|
||
return ENOENT;
|
||
|
||
valuelen = strlen (value);
|
||
if (valuelen > *datalen)
|
||
{
|
||
if (err = __vm_allocate (__mach_task_self (),
|
||
(vm_address_t *) data, valuelen, 1))
|
||
return err;
|
||
}
|
||
|
||
memcpy (*data, value, valuelen);
|
||
*datalen = valuelen;
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
kern_return_t
|
||
_S_msg_set_env_variable (mach_port_t msgport, mach_port_t auth,
|
||
char *variable,
|
||
char *value,
|
||
int replace)
|
||
{
|
||
AUTHCHECK;
|
||
|
||
if (setenv (variable, value, replace)) /* XXX name space */
|
||
return errno;
|
||
return 0;
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_get_environment (mach_port_t msgport,
|
||
char **data, mach_msg_type_number_t *datalen)
|
||
{
|
||
/* Pack the environment into an array with nulls separating elements. */
|
||
if (__environ != NULL)
|
||
{
|
||
char *ap, **p;
|
||
size_t envlen = 0;
|
||
|
||
for (p = __environ; *p != NULL; ++p)
|
||
envlen += strlen (*p) + 1;
|
||
|
||
if (envlen > *datalen)
|
||
{
|
||
if (__vm_allocate (__mach_task_self (),
|
||
(vm_address_t *) data, envlen, 1))
|
||
return ENOMEM;
|
||
}
|
||
|
||
ap = *data;
|
||
for (p = __environ; *p != NULL; ++p)
|
||
ap = __memccpy (ap, *p, '\0', ULONG_MAX);
|
||
|
||
*datalen = envlen;
|
||
}
|
||
else
|
||
*datalen = 0;
|
||
|
||
return 0;
|
||
}
|
||
|
||
kern_return_t
|
||
_S_msg_set_environment (mach_port_t msgport, mach_port_t auth,
|
||
char *data, mach_msg_type_number_t datalen)
|
||
{
|
||
int _hurd_split_args (char *, mach_msg_type_number_t, char **);
|
||
int envc;
|
||
char **envp;
|
||
|
||
AUTHCHECK;
|
||
|
||
envc = __argz_count (data, datalen);
|
||
envp = malloc ((envc + 1) * sizeof (char *));
|
||
if (envp == NULL)
|
||
return errno;
|
||
__argz_extract (data, datalen, envp);
|
||
__environ = envp; /* XXX cooperate with loadenv et al */
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* XXX */
|
||
|
||
kern_return_t
|
||
_S_msg_get_dtable (mach_port_t process,
|
||
mach_port_t refport,
|
||
portarray_t *dtable,
|
||
mach_msg_type_name_t *dtablePoly,
|
||
mach_msg_type_number_t *dtableCnt)
|
||
{ return EOPNOTSUPP; }
|
||
|
||
kern_return_t
|
||
_S_msg_set_dtable (mach_port_t process,
|
||
mach_port_t refport,
|
||
portarray_t dtable,
|
||
mach_msg_type_number_t dtableCnt)
|
||
{ return EOPNOTSUPP; }
|