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merge bitcoin#17291: Add fuzzing harness for ISO-8601 related functions

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Kittywhiskers Van Gogh 2022-02-28 00:40:56 +05:30
parent fd4c6f8239
commit 166232b6f3
3 changed files with 40 additions and 1 deletions
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2
doc/fuzzing.md
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@ -102,7 +102,7 @@ libFuzzer is needed (all found in the `compiler-rt` runtime libraries package).
To build all fuzz targets with libFuzzer, run
```
./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address CC=clang CXX=clang++
./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=clang CXX=clang++
make
```

7
src/Makefile.test.include
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@ -35,6 +35,7 @@ FUZZ_TARGETS = \
test/fuzz/messageheader_deserialize \
test/fuzz/netaddr_deserialize \
test/fuzz/out_point_deserialize \
test/fuzz/parse_iso8601 \
test/fuzz/partial_merkle_tree_deserialize \
test/fuzz/partially_signed_transaction_deserialize \
test/fuzz/prefilled_transaction_deserialize \
@ -321,6 +322,12 @@ test_fuzz_netaddr_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_netaddr_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_netaddr_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_parse_iso8601_SOURCES = $(FUZZ_SUITE) test/fuzz/parse_iso8601.cpp
test_fuzz_parse_iso8601_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_parse_iso8601_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_parse_iso8601_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
test_fuzz_parse_iso8601_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_script_SOURCES = $(FUZZ_SUITE) test/fuzz/script.cpp
test_fuzz_script_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_script_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)

32
src/test/fuzz/parse_iso8601.cpp Normal file
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@ -0,0 +1,32 @@
// Copyright (c) 2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <util/time.h>
#include <cassert>
#include <cstdint>
#include <string>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const int64_t random_time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
const std::string random_string = fuzzed_data_provider.ConsumeRemainingBytesAsString();
const std::string iso8601_datetime = FormatISO8601DateTime(random_time);
const int64_t parsed_time_1 = ParseISO8601DateTime(iso8601_datetime);
if (random_time >= 0) {
assert(parsed_time_1 >= 0);
if (iso8601_datetime.length() == 20) {
assert(parsed_time_1 == random_time);
}
}
const int64_t parsed_time_2 = ParseISO8601DateTime(random_string);
assert(parsed_time_2 >= 0);
}