/*

 * Copyright 2026 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the Apache License 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 * https://www.openssl.org/source/license.html

 * or in the file LICENSE in the source distribution.

 */

/*

 * Test PKCS12 parsing with fuzzed input.

 */

#include <openssl/bio.h>

#include <openssl/err.h>

#include <openssl/pkcs12.h>

#include <openssl/x509.h>

#include "fuzzer.h"

int FuzzerInitialize(int *argc, char ***argv)

{

    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);

    ERR_clear_error();

    CRYPTO_free_ex_index(0, -1);

    return 1;

}

int FuzzerTestOneInput(const uint8_t *buf, size_t len)

{

    PKCS12 *p12;

    BIO *in;

    EVP_PKEY *pkey = NULL;

    X509 *cert = NULL;

    STACK_OF(X509) *ca = NULL;

    if (len == 0 || len > INT_MAX)

        return 0;

    in = BIO_new(BIO_s_mem());

    if (in == NULL) {

        ERR_clear_error();

        return 0;

    }

    if ((size_t)BIO_write(in, buf, (int)len) != len) {

        BIO_free(in);

        ERR_clear_error();

        return 0;

    }

    p12 = d2i_PKCS12_bio(in, NULL);

    if (p12 != NULL) {

        PKCS12_verify_mac(p12, NULL, 0);

        PKCS12_verify_mac(p12, "", 0);

        PKCS12_parse(p12, NULL, &pkey, &cert, &ca);

        EVP_PKEY_free(pkey);

        X509_free(cert);

        OSSL_STACK_OF_X509_free(ca);

        pkey = NULL;

        cert = NULL;

        ca = NULL;

        PKCS12_parse(p12, "", &pkey, &cert, &ca);

        EVP_PKEY_free(pkey);

        X509_free(cert);

        OSSL_STACK_OF_X509_free(ca);

        PKCS12_free(p12);

    }

    BIO_free(in);

    ERR_clear_error();

    return 0;

}

void FuzzerCleanup(void)

{

}