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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/fuzz/fuzz.h | |
parent | Initial commit. (diff) | |
download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/fuzz/fuzz.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/fuzz/fuzz.h b/src/fuzz/fuzz.h new file mode 100644 index 0000000..77e0ad9 --- /dev/null +++ b/src/fuzz/fuzz.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stddef.h> +#include <stdint.h> + +#include "env-util.h" +#include "fileio.h" + +/* The entry point into the fuzzer */ +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size); + +static inline FILE* data_to_file(const uint8_t *data, size_t size) { + if (size == 0) + return fopen("/dev/null", "re"); + else + return fmemopen_unlocked((char*) data, size, "r"); +} + +/* Check if we are within the specified size range. + * The upper limit is ignored if FUZZ_USE_SIZE_LIMIT is unset. + */ +static inline bool outside_size_range(size_t size, size_t lower, size_t upper) { + if (size < lower) + return true; + if (size > upper) + return FUZZ_USE_SIZE_LIMIT; + return false; +} + +/* Force value to not be optimized away. */ +#define DO_NOT_OPTIMIZE(value) ({ asm volatile("" : : "g"(value) : "memory"); }) |