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/*
File: acl_init.c
Copyright (C) 1999, 2000
Andreas Gruenbacher, <andreas.gruenbacher@gmail.com>
This 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.
This 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 this library; if not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "libacl.h"
acl_obj *
__acl_init_obj(int count)
{
acl_obj *acl_obj_p = new_obj_p(acl);
if (!acl_obj_p)
return NULL;
acl_obj_p->aused = 0;
acl_obj_p->aprev = acl_obj_p->anext = (acl_entry_obj *)acl_obj_p;
acl_obj_p->acurr = (acl_entry_obj *)acl_obj_p;
/* aprealloc points to an array of pre-allocated ACL entries.
Entries between [aprealloc, aprealloc_end) are still available.
Pre-allocated entries are consumed from the last entry to the
first and aprealloc_end decremented. After all pre-allocated
entries are consumed, further entries are malloc'ed.
aprealloc == aprealloc_end is true when no more pre-allocated
entries are available. */
if (count > 0)
acl_obj_p->aprealloc = (acl_entry_obj *)
malloc(count * sizeof(acl_entry_obj));
else
acl_obj_p->aprealloc = NULL;
if (acl_obj_p->aprealloc != NULL)
acl_obj_p->aprealloc_end = acl_obj_p->aprealloc + count;
else
acl_obj_p->aprealloc_end = NULL;
return acl_obj_p;
}
/* 23.4.20 */
acl_t
acl_init(int count)
{
acl_obj *obj;
if (count < 0) {
errno = EINVAL;
return NULL;
}
obj = __acl_init_obj(count);
return int2ext(obj);
}
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