648db22b |
1 | /* |
2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
3 | * All rights reserved. |
4 | * |
5 | * This source code is licensed under both the BSD-style license (found in the |
6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
7 | * in the COPYING file in the root directory of this source tree). |
8 | * You may select, at your option, one of the above-listed licenses. |
9 | */ |
10 | |
11 | /** |
12 | * Helper functions for fuzzing. |
13 | */ |
14 | |
15 | #ifndef FUZZ_HELPERS_H |
16 | #define FUZZ_HELPERS_H |
17 | |
18 | #include "debug.h" |
19 | #include "fuzz.h" |
20 | #include "xxhash.h" |
21 | #include "zstd.h" |
22 | #include "fuzz_data_producer.h" |
23 | #include <stdint.h> |
24 | #include <stdio.h> |
25 | #include <stdlib.h> |
26 | |
27 | #ifdef __cplusplus |
28 | extern "C" { |
29 | #endif |
30 | |
31 | #define MIN(a, b) ((a) < (b) ? (a) : (b)) |
32 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) |
33 | |
34 | #define FUZZ_QUOTE_IMPL(str) #str |
35 | #define FUZZ_QUOTE(str) FUZZ_QUOTE_IMPL(str) |
36 | |
37 | /** |
38 | * Asserts for fuzzing that are always enabled. |
39 | */ |
40 | #define FUZZ_ASSERT_MSG(cond, msg) \ |
41 | ((cond) ? (void)0 \ |
42 | : (fprintf(stderr, "%s: %u: Assertion: `%s' failed. %s\n", __FILE__, \ |
43 | __LINE__, FUZZ_QUOTE(cond), (msg)), \ |
44 | abort())) |
45 | #define FUZZ_ASSERT(cond) FUZZ_ASSERT_MSG((cond), ""); |
46 | #define FUZZ_ZASSERT(code) \ |
47 | FUZZ_ASSERT_MSG(!ZSTD_isError(code), ZSTD_getErrorName(code)) |
48 | |
49 | #if defined(__GNUC__) |
50 | #define FUZZ_STATIC static __inline __attribute__((unused)) |
51 | #elif defined(__cplusplus) || \ |
52 | (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) |
53 | #define FUZZ_STATIC static inline |
54 | #elif defined(_MSC_VER) |
55 | #define FUZZ_STATIC static __inline |
56 | #else |
57 | #define FUZZ_STATIC static |
58 | #endif |
59 | |
60 | /** |
61 | * malloc except return NULL for zero sized data and FUZZ_ASSERT |
62 | * that malloc doesn't fail. |
63 | */ |
64 | void* FUZZ_malloc(size_t size); |
65 | |
66 | /** |
67 | * malloc except returns random pointer for zero sized data and FUZZ_ASSERT |
68 | * that malloc doesn't fail. |
69 | */ |
70 | void* FUZZ_malloc_rand(size_t size, FUZZ_dataProducer_t *producer); |
71 | |
72 | /** |
73 | * memcmp but accepts NULL. |
74 | */ |
75 | int FUZZ_memcmp(void const* lhs, void const* rhs, size_t size); |
76 | |
77 | #ifdef __cplusplus |
78 | } |
79 | #endif |
80 | |
81 | #endif |