Mercurial > hg
view contrib/fuzz/xdiff.cc @ 48308:698b70b9e8ea
rhg: make it possible to opt out of `rhg cat`
The reason an opt-out is needed is that there are still behavior
differences between `rhg cat` and `hg cat`:
- it does not interpret relative paths correctly
- it does not interpret patterns correctly, e.g. 're:foobar$' would be interpreted as a verbatim filename
- it does not implement the correct semantics of relpath matcher: if given a directory, `hg` concatenates all files in this directory, while `rhg` simply complains
Differential Revision: https://phab.mercurial-scm.org/D11723
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
---|---|
date | Wed, 27 Oct 2021 19:37:46 +0100 |
parents | d37658efbec2 |
children |
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/* * xdiff.cc - fuzzer harness for thirdparty/xdiff * * 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 "thirdparty/xdiff/xdiff.h" #include <inttypes.h> #include <stdlib.h> #include "FuzzedDataProvider.h" extern "C" { int LLVMFuzzerInitialize(int *argc, char ***argv) { return 0; } int hunk_consumer(long a1, long a2, long b1, long b2, void *priv) { // TODO: probably also test returning -1 from this when things break? return 0; } int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { // Don't allow fuzzer inputs larger than 100k, since we'll just bog // down and not accomplish much. if (Size > 100000) { return 0; } FuzzedDataProvider provider(Data, Size); std::string left = provider.ConsumeRandomLengthString(Size); std::string right = provider.ConsumeRemainingBytesAsString(); mmfile_t a, b; a.ptr = (char *)left.c_str(); a.size = left.size(); b.ptr = (char *)right.c_str(); b.size = right.size(); xpparam_t xpp = { XDF_INDENT_HEURISTIC, /* flags */ }; xdemitconf_t xecfg = { XDL_EMIT_BDIFFHUNK, /* flags */ hunk_consumer, /* hunk_consume_func */ }; xdemitcb_t ecb = { NULL, /* priv */ }; xdl_diff(&a, &b, &xpp, &xecfg, &ecb); return 0; // Non-zero return values are reserved for future use. } } // extern "C"