Mercurial > hg
view contrib/fuzz/bdiff.cc @ 37299:e9aadee698cf
wireproto: add frame flag to denote payloads as CBOR
We may eventually want a separate frame type for this. But for
now this is the easiest to implement.
Differential Revision: https://phab.mercurial-scm.org/D2986
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 28 Mar 2018 13:30:24 -0700 |
parents | 2b9e2415f5b5 |
children | fa0ddd5e8fff |
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/* * bdiff.cc - fuzzer harness for bdiff.c * * Copyright 2018, Google Inc. * * This software may be used and distributed according to the terms of * the GNU General Public License, incorporated herein by reference. */ #include <stdlib.h> extern "C" { #include "bdiff.h" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { if (!Size) { return 0; } // figure out a random point in [0, Size] to split our input. size_t split = Data[0] / 255.0 * Size; // left input to diff is data[1:split] const uint8_t *left = Data + 1; // which has len split-1 size_t left_size = split - 1; // right starts at the next byte after left ends const uint8_t *right = left + left_size; size_t right_size = Size - split; struct bdiff_line *a, *b; int an = bdiff_splitlines((const char *)left, split - 1, &a); int bn = bdiff_splitlines((const char *)right, right_size, &b); struct bdiff_hunk l; bdiff_diff(a, an, b, bn, &l); free(a); free(b); bdiff_freehunks(l.next); return 0; // Non-zero return values are reserved for future use. } #ifdef HG_FUZZER_INCLUDE_MAIN int main(int argc, char **argv) { const char data[] = "asdf"; return LLVMFuzzerTestOneInput((const uint8_t *)data, 4); } #endif } // extern "C"