-/* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2017 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.
+ 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
- Library General Public License for more details.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#include <hurd.h>
#include <hurd/msg_server.h>
{
error_t err;
auth_t newauth;
+ uid_t *genuids, *gengids, *auxuids, *auxgids;
+ mach_msg_type_number_t ngenuids, ngengids, nauxuids, nauxgids;
+ uid_t *newgenuids, *newgengids, *newauxuids, *newauxgids;
+ mach_msg_type_number_t nnewgenuids, nnewgengids, nnewauxuids, nnewauxgids;
+
+ /* Create a list of ids and store it in NEWLISTP, length NEWLISTLEN.
+ Keep all the ids in EXIST (len NEXIST), adding in those from NEW
+ (len NNEW) which are not already there. */
+ error_t make_list (uid_t **newlistp, mach_msg_type_number_t *newlistlen,
+ uid_t *exist, mach_msg_type_number_t nexist,
+ uid_t *new, mach_msg_type_number_t nnew)
+ {
+ error_t urp;
+ int i, j, k;
+ vm_size_t offset;
+
+ urp = vm_allocate (mach_task_self (), (vm_address_t *) newlistp,
+ nexist + nnew * sizeof (uid_t), 1);
+ if (urp)
+ return urp;
+
+ j = 0;
+ for (i = 0; i < nexist; i++)
+ (*newlistp)[j++] = exist[i];
+
+ for (i = 0; i < nnew; i++)
+ {
+ for (k = 0; k < nexist; k++)
+ if (exist[k] == new[i])
+ break;
+ if (k < nexist)
+ continue;
+
+ (*newlistp)[j++] = new[i];
+ }
+
+ offset = (round_page (nexist + nnew * sizeof (uid_t))
+ - round_page (j * sizeof (uid_t)));
+ if (offset)
+ vm_deallocate (mach_task_self (),
+ (vm_address_t) (*newlistp
+ + (nexist + nnew * sizeof (uid_t))),
+ offset);
+ *newlistlen = j;
+ return 0;
+ }
+
+ /* Find out what ids ADDAUTH refers to */
- if (err = __USEPORT (AUTH,
- __auth_makeauth (port,
- &addauth, 1, MACH_MSG_TYPE_MOVE_SEND,
- NULL, 0,
- NULL, 0,
- NULL, 0,
- NULL, 0,
- &newauth)))
+ genuids = gengids = auxuids = auxgids = 0;
+ ngenuids = ngengids = nauxuids = nauxgids = 0;
+ err = __auth_getids (addauth,
+ &genuids, &ngenuids,
+ &auxuids, &nauxuids,
+ &gengids, &ngengids,
+ &auxgids, &nauxgids);
+ if (err)
return err;
+ /* OR in these ids to what we already have, creating a new list. */
+
+ HURD_CRITICAL_BEGIN;
+ __mutex_lock (&_hurd_id.lock);
+ _hurd_check_ids ();
+
+#define MAKE(genaux,uidgid) \
+ make_list (&new ## genaux ## uidgid ## s, \
+ &nnew ## genaux ## uidgid ## s, \
+ _hurd_id.genaux.uidgid ## s, \
+ _hurd_id.genaux.n ## uidgid ## s, \
+ genaux ## uidgid ## s, \
+ n ## genaux ## uidgid ## s)
+
+ err = MAKE (gen, uid);
+ if (!err)
+ MAKE (aux, uid);
+ if (!err)
+ MAKE (gen, gid);
+ if (!err)
+ MAKE (aux, gid);
+#undef MAKE
+
+ __mutex_unlock (&_hurd_id.lock);
+ HURD_CRITICAL_END;
+
+
+ /* Create the new auth port */
+
+ if (!err)
+ err = __USEPORT (AUTH,
+ __auth_makeauth (port,
+ &addauth, MACH_MSG_TYPE_MOVE_SEND, 1,
+ newgenuids, nnewgenuids,
+ newauxuids, nnewauxuids,
+ newgengids, nnewgengids,
+ newauxgids, nnewauxgids,
+ &newauth));
+
+#define freeup(array, len) \
+ if (array) \
+ vm_deallocate (mach_task_self (), (vm_address_t) array, \
+ len * sizeof (uid_t));
+
+ freeup (genuids, ngenuids);
+ freeup (auxuids, nauxuids);
+ freeup (gengids, ngengids);
+ freeup (auxgids, nauxgids);
+ freeup (newgenuids, nnewgenuids);
+ freeup (newauxuids, nnewauxuids);
+ freeup (newgengids, nnewgengids);
+ freeup (newauxgids, nnewauxgids);
+#undef freeup
+
+ if (err)
+ return err;
+
+ /* And install it. */
+
err = __setauth (newauth);
__mach_port_deallocate (__mach_task_self (), newauth);
if (err)
err = __USEPORT (AUTH, __auth_makeauth
(port,
- NULL, 0, MACH_MSG_TYPE_COPY_SEND,
+ NULL, MACH_MSG_TYPE_COPY_SEND, 0,
newu, nu,
_hurd_id.aux.uids, _hurd_id.aux.nuids,
newg, ng,
projects / thirdparty / glibc.git / blobdiff