thodg/libgit2/fuzzers/patch_parse_fuzzer.c
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Hash : 92e011a7
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Date : 2019-10-15T16:22:35
fuzzers: add a new fuzzer for patch parsing I was looking at this code anyway because the sr.ht people nerdsniped me, and it gave me that "I should fuzz this" feeling. So have a fuzzer!
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fuzzers/patch_parse_fuzzer.c
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/* * libgit2 patch parser fuzzer target. * * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. */ #include "git2.h" #include "patch.h" #include "patch_parse.h" #define UNUSED(x) (void)(x) int LLVMFuzzerInitialize(int *argc, char ***argv) { UNUSED(argc); UNUSED(argv); if (git_libgit2_init() < 0) abort(); return 0; } int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { if (size) { git_patch *patch = NULL; git_patch_options opts = GIT_PATCH_OPTIONS_INIT; opts.prefix_len = (uint32_t)data[0]; git_patch_from_buffer(&patch, (const char *)data + 1, size - 1, &opts); git_patch_free(patch); } return 0; }