1*e7be843bSPierre Pronchery /*
2*e7be843bSPierre Pronchery * Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
3*e7be843bSPierre Pronchery *
4*e7be843bSPierre Pronchery * Licensed under the Apache License 2.0 (the "License");
5*e7be843bSPierre Pronchery * you may not use this file except in compliance with the License.
6*e7be843bSPierre Pronchery * You may obtain a copy of the License at
7*e7be843bSPierre Pronchery * https://www.openssl.org/source/license.html
8*e7be843bSPierre Pronchery * or in the file LICENSE in the source distribution.
9*e7be843bSPierre Pronchery */
10*e7be843bSPierre Pronchery
11*e7be843bSPierre Pronchery #include "fuzzer.h"
12*e7be843bSPierre Pronchery #include <openssl/err.h>
13*e7be843bSPierre Pronchery #include <openssl/pkcs7.h>
14*e7be843bSPierre Pronchery #include <openssl/x509.h>
15*e7be843bSPierre Pronchery #include <stdio.h>
16*e7be843bSPierre Pronchery
FuzzerInitialize(int * argc,char *** argv)17*e7be843bSPierre Pronchery int FuzzerInitialize(int *argc, char ***argv)
18*e7be843bSPierre Pronchery {
19*e7be843bSPierre Pronchery return 1;
20*e7be843bSPierre Pronchery }
21*e7be843bSPierre Pronchery
FuzzerTestOneInput(const uint8_t * buf,size_t len)22*e7be843bSPierre Pronchery int FuzzerTestOneInput(const uint8_t *buf, size_t len)
23*e7be843bSPierre Pronchery {
24*e7be843bSPierre Pronchery BIO *b = BIO_new_mem_buf(buf, len);
25*e7be843bSPierre Pronchery PKCS7 *p7 = SMIME_read_PKCS7(b, NULL);
26*e7be843bSPierre Pronchery
27*e7be843bSPierre Pronchery if (p7 != NULL) {
28*e7be843bSPierre Pronchery STACK_OF(PKCS7_SIGNER_INFO) *p7si = PKCS7_get_signer_info(p7);
29*e7be843bSPierre Pronchery int i;
30*e7be843bSPierre Pronchery
31*e7be843bSPierre Pronchery for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(p7si); i++) {
32*e7be843bSPierre Pronchery STACK_OF(X509_ALGOR) *algs;
33*e7be843bSPierre Pronchery
34*e7be843bSPierre Pronchery PKCS7_cert_from_signer_info(p7,
35*e7be843bSPierre Pronchery sk_PKCS7_SIGNER_INFO_value(p7si, i));
36*e7be843bSPierre Pronchery algs = PKCS7_get_smimecap(sk_PKCS7_SIGNER_INFO_value(p7si, i));
37*e7be843bSPierre Pronchery sk_X509_ALGOR_pop_free(algs, X509_ALGOR_free);
38*e7be843bSPierre Pronchery }
39*e7be843bSPierre Pronchery PKCS7_free(p7);
40*e7be843bSPierre Pronchery }
41*e7be843bSPierre Pronchery
42*e7be843bSPierre Pronchery BIO_free(b);
43*e7be843bSPierre Pronchery ERR_clear_error();
44*e7be843bSPierre Pronchery return 0;
45*e7be843bSPierre Pronchery }
46*e7be843bSPierre Pronchery
FuzzerCleanup(void)47*e7be843bSPierre Pronchery void FuzzerCleanup(void)
48*e7be843bSPierre Pronchery {
49*e7be843bSPierre Pronchery }
50