зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.8 KiB
C++
88 строки
2.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Helper functions for MPI fuzzing targets. */
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#ifndef mpi_helper_h__
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#define mpi_helper_h__
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#include <iostream>
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#include <string>
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#include <tuple>
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#include <vector>
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#include "hasht.h"
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#include "mpi.h"
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#include <openssl/bn.h>
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void check_equal(BIGNUM *b, mp_int *m, size_t max_size);
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void parse_input(const uint8_t *data, size_t size, BIGNUM *A, BIGNUM *B,
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mp_int *a, mp_int *b);
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void parse_input(const uint8_t *data, size_t size, BIGNUM *A, mp_int *a);
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std::tuple<BIGNUM *, mp_int> get_modulus(const uint8_t *data, size_t size,
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BN_CTX *ctx);
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void print_bn(std::string label, BIGNUM *x);
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// Initialise MPI and BN variables
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// XXX: Also silence unused variable warnings for R.
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#define INIT_FOUR_NUMBERS \
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mp_int a, b, c, r; \
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mp_int *m1 = nullptr; \
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BN_CTX *ctx = BN_CTX_new(); \
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BN_CTX_start(ctx); \
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BIGNUM *A = BN_CTX_get(ctx); \
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BIGNUM *B = BN_CTX_get(ctx); \
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BIGNUM *C = BN_CTX_get(ctx); \
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BIGNUM *R = BN_CTX_get(ctx); \
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assert(mp_init(&a) == MP_OKAY); \
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assert(mp_init(&b) == MP_OKAY); \
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assert(mp_init(&c) == MP_OKAY); \
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assert(mp_init(&r) == MP_OKAY); \
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size_t max_size = 2 * size + 1; \
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parse_input(data, size, A, B, &a, &b); \
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do { \
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(void)(R); \
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} while (0);
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// Initialise MPI and BN variables
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// XXX: Also silence unused variable warnings for B.
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#define INIT_THREE_NUMBERS \
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mp_int a, b, c; \
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BN_CTX *ctx = BN_CTX_new(); \
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BN_CTX_start(ctx); \
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BIGNUM *A = BN_CTX_get(ctx); \
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BIGNUM *B = BN_CTX_get(ctx); \
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BIGNUM *C = BN_CTX_get(ctx); \
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assert(mp_init(&a) == MP_OKAY); \
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assert(mp_init(&b) == MP_OKAY); \
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assert(mp_init(&c) == MP_OKAY); \
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size_t max_size = 4 * size + 1; \
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parse_input(data, size, A, &a); \
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do { \
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(void)(B); \
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} while (0);
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#define CLEANUP_AND_RETURN \
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mp_clear(&a); \
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mp_clear(&b); \
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mp_clear(&c); \
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mp_clear(&r); \
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if (m1) { \
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mp_clear(m1); \
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} \
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BN_CTX_end(ctx); \
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BN_CTX_free(ctx); \
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return 0;
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#define CLEANUP_AND_RETURN_THREE \
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mp_clear(&a); \
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mp_clear(&b); \
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mp_clear(&c); \
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BN_CTX_end(ctx); \
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BN_CTX_free(ctx); \
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return 0;
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#endif // mpi_helper_h__
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