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/*
Authors:
Simo Sorce <ssorce@redhat.com>
Copyright (C) 2009 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "talloc.h"
#include "util/util.h"
/*
* sssd_mem_attach
* This function will take a non-talloc pointer and "attach" it to a talloc
* memory context. It will accept a destructor for the original pointer
* so that when the parent memory context is freed, the non-talloc
* pointer will also be freed properly.
*/
int password_destructor(void *memctx)
{
char *password = (char *)memctx;
int i;
/* zero out password */
for (i = 0; password[i]; i++) password[i] = '\0';
return 0;
}
static int mem_holder_destructor(void *ptr)
{
struct mem_holder *h;
h = talloc_get_type(ptr, struct mem_holder);
return h->fn(h->mem);
}
void *sss_mem_attach(TALLOC_CTX *mem_ctx,
void *ptr,
void_destructor_fn_t *fn)
{
struct mem_holder *h;
if (!ptr || !fn) return NULL;
h = talloc(mem_ctx, struct mem_holder);
if (!h) return NULL;
h->mem = ptr;
h->fn = fn;
talloc_set_destructor((TALLOC_CTX *)h, mem_holder_destructor);
return h;
}
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