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d69d8f904c
We want to be in the same global state each time we come in FuzzerTestOneInput(). There are various reasons why we might not be that include: - Initialization that happens on first use. This is mostly the RUN_ONCE() things, or loading of error strings. - Results that get cached. For instance a stack that is sorted, RSA blinding that has been set up, ... So I try to trigger as much as possible in FuzzerInitialize(), and for things I didn't find out how to trigger this it needs to happen in FuzzerTestOneInput(). Reviewed-by: Rich Salz <rsalz@openssl.org> GH: #2023
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL licenses, (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* https://www.openssl.org/source/license.html
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* or in the file LICENSE in the source distribution.
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*/
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#include <openssl/x509.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include "fuzzer.h"
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int FuzzerInitialize(int *argc, char ***argv)
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{
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OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
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ERR_get_state();
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CRYPTO_free_ex_index(0, -1);
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return 1;
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}
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int FuzzerTestOneInput(const uint8_t *buf, size_t len)
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{
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const unsigned char *p = buf;
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unsigned char *der = NULL;
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X509 *x509 = d2i_X509(NULL, &p, len);
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if (x509 != NULL) {
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BIO *bio = BIO_new(BIO_s_null());
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/* This will load and print the public key as well as extensions */
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X509_print(bio, x509);
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BIO_free(bio);
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i2d_X509(x509, &der);
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OPENSSL_free(der);
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X509_free(x509);
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}
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ERR_clear_error();
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return 0;
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}
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void FuzzerCleanup(void)
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{
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}
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