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/*
File: acl_copy_int.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"
/* 23.4.6 */
acl_t
acl_copy_int(const void *buf_p)
{
const struct __acl *ext_acl = (struct __acl *)buf_p;
const struct __acl_entry *ent_p, *end_p;
size_t size;
int entries;
acl_obj *acl_obj_p;
acl_entry_obj *entry_obj_p;
if (!ext_acl || ext_acl->x_size < sizeof(struct __acl)) {
errno = EINVAL;
return NULL;
}
ent_p = ext_acl->x_entries;
size = ext_acl->x_size - sizeof(struct __acl);
if (size % sizeof(struct __acl_entry)) {
errno = EINVAL;
return NULL;
}
entries = size / sizeof(struct __acl_entry);
acl_obj_p = __acl_init_obj(entries);
if (acl_obj_p == NULL)
return NULL;
end_p = ext_acl->x_entries + entries;
for(; ent_p != end_p; ent_p++) {
entry_obj_p = __acl_create_entry_obj(acl_obj_p);
if (!entry_obj_p)
goto fail;
/* XXX Convert to machine endianness */
entry_obj_p->eentry = *ent_p;
}
if (__acl_reorder_obj_p(acl_obj_p))
goto fail;
return int2ext(acl_obj_p);
fail:
__acl_free_acl_obj(acl_obj_p);
return NULL;
}
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