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/*
* Copyright 2023-2025 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.
*/
#include "fuzzer.h"
#include <openssl/err.h>
#include <openssl/pkcs7.h>
#include <openssl/x509.h>
#include <stdio.h>
int FuzzerInitialize(int *argc, char ***argv)
{
return 1;
}
int FuzzerTestOneInput(const uint8_t *buf, size_t len)
{
BIO *b = BIO_new_mem_buf(buf, (int)len);
PKCS7 *p7 = SMIME_read_PKCS7(b, NULL);
if (p7 != NULL) {
STACK_OF(PKCS7_SIGNER_INFO) *p7si = PKCS7_get_signer_info(p7);
int i;
for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(p7si); i++) {
STACK_OF(X509_ALGOR) *algs;
PKCS7_cert_from_signer_info(p7,
sk_PKCS7_SIGNER_INFO_value(p7si, i));
algs = PKCS7_get_smimecap(sk_PKCS7_SIGNER_INFO_value(p7si, i));
sk_X509_ALGOR_pop_free(algs, X509_ALGOR_free);
}
PKCS7_free(p7);
}
BIO_free(b);
ERR_clear_error();
return 0;
}
void FuzzerCleanup(void)
{
}
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