Merge #17291: tests: Add fuzzing harness for ISO-8601 related functions
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docs: Add undefined to --with-sanitizers=fuzzer,address (practicalswift)d5dbb4898c
tests: Add fuzzing harness for ISO-8601 related functions (practicalswift) Pull request description: Add fuzzing harness for ISO-8601 related functions. **Testing this PR** Run: ``` $ CC=clang CXX=clang++ ./configure --enable-fuzz \ --with-sanitizers=address,fuzzer,undefined $ make $ src/test/fuzz/parse_iso8601 … ``` Top commit has no ACKs. Tree-SHA512: 8d4ad9e4eef546e97ea330cf518fdd7241c6f016d6c45c011369d5cdd832bbbc3564d1a990c953ffb33b0c05e58f5533e7b6fd77062f8484df36da1513567915
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commit
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3 changed files with 41 additions and 2 deletions
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@ -77,13 +77,13 @@ will print an error and suggestion if so.
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## libFuzzer
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A recent version of `clang`, the address sanitizer and libFuzzer is needed (all
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A recent version of `clang`, the address/undefined sanitizers (ASan/UBSan) and libFuzzer is needed (all
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found in the `compiler-rt` runtime libraries package).
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To build all fuzz targets with libFuzzer, run
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```
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./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address CC=clang CXX=clang++
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./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=clang CXX=clang++
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make
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```
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@ -22,6 +22,7 @@ FUZZ_TARGETS = \
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test/fuzz/inv_deserialize \
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test/fuzz/messageheader_deserialize \
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test/fuzz/netaddr_deserialize \
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test/fuzz/parse_iso8601 \
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test/fuzz/script \
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test/fuzz/script_flags \
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test/fuzz/service_deserialize \
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@ -269,6 +270,12 @@ test_fuzz_netaddr_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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test_fuzz_netaddr_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
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test_fuzz_netaddr_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
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test_fuzz_parse_iso8601_SOURCES = $(FUZZ_SUITE) test/fuzz/parse_iso8601.cpp
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test_fuzz_parse_iso8601_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
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test_fuzz_parse_iso8601_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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test_fuzz_parse_iso8601_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
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test_fuzz_parse_iso8601_LDADD = $(FUZZ_SUITE_LD_COMMON)
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test_fuzz_script_SOURCES = $(FUZZ_SUITE) test/fuzz/script.cpp
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test_fuzz_script_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
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test_fuzz_script_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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32
src/test/fuzz/parse_iso8601.cpp
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32
src/test/fuzz/parse_iso8601.cpp
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// Copyright (c) 2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <util/time.h>
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#include <cassert>
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#include <cstdint>
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#include <string>
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#include <vector>
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void test_one_input(const std::vector<uint8_t>& buffer)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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const int64_t random_time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
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const std::string random_string = fuzzed_data_provider.ConsumeRemainingBytesAsString();
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const std::string iso8601_datetime = FormatISO8601DateTime(random_time);
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const int64_t parsed_time_1 = ParseISO8601DateTime(iso8601_datetime);
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if (random_time >= 0) {
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assert(parsed_time_1 >= 0);
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if (iso8601_datetime.length() == 20) {
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assert(parsed_time_1 == random_time);
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}
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}
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const int64_t parsed_time_2 = ParseISO8601DateTime(random_string);
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assert(parsed_time_2 >= 0);
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}
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