Use safer sizeof variant in malloc

[thirdparty/openssl.git] / crypto / x509v3 / pcy_data.c

/* pcy_data.c */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2004.
 */
/* ====================================================================
 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/x509v3.h>

#include "pcy_int.h"

/* Policy Node routines */

void policy_data_free(X509_POLICY_DATA *data)
{
    if (!data)
        return;
    ASN1_OBJECT_free(data->valid_policy);
    /* Don't free qualifiers if shared */
    if (!(data->flags & POLICY_DATA_FLAG_SHARED_QUALIFIERS))
        sk_POLICYQUALINFO_pop_free(data->qualifier_set, POLICYQUALINFO_free);
    sk_ASN1_OBJECT_pop_free(data->expected_policy_set, ASN1_OBJECT_free);
    OPENSSL_free(data);
}

/*
 * Create a data based on an existing policy. If 'id' is NULL use the oid in
 * the policy, otherwise use 'id'. This behaviour covers the two types of
 * data in RFC3280: data with from a CertificatePolcies extension and
 * additional data with just the qualifiers of anyPolicy and ID from another
 * source.
 */

X509_POLICY_DATA *policy_data_new(POLICYINFO *policy,
                                  const ASN1_OBJECT *cid, int crit)
{
    X509_POLICY_DATA *ret;
    ASN1_OBJECT *id;
    if (!policy && !cid)
        return NULL;
    if (cid) {
        id = OBJ_dup(cid);
        if (!id)
            return NULL;
    } else
        id = NULL;
    ret = OPENSSL_malloc(sizeof(*ret));
    if (!ret)
        return NULL;
    ret->expected_policy_set = sk_ASN1_OBJECT_new_null();
    if (!ret->expected_policy_set) {
        OPENSSL_free(ret);
        ASN1_OBJECT_free(id);
        return NULL;
    }

    if (crit)
        ret->flags = POLICY_DATA_FLAG_CRITICAL;
    else
        ret->flags = 0;

    if (id)
        ret->valid_policy = id;
    else {
        ret->valid_policy = policy->policyid;
        policy->policyid = NULL;
    }

    if (policy) {
        ret->qualifier_set = policy->qualifiers;
        policy->qualifiers = NULL;
    } else
        ret->qualifier_set = NULL;

    return ret;
}