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-rw-r--r--src/Makefile.test.include7
-rw-r--r--src/test/fuzz/load_external_block_file.cpp31
2 files changed, 38 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 211b4b5897..da119f9e9b 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -57,6 +57,7 @@ FUZZ_TARGETS = \
test/fuzz/key_io \
test/fuzz/key_origin_info_deserialize \
test/fuzz/kitchen_sink \
+ test/fuzz/load_external_block_file \
test/fuzz/locale \
test/fuzz/merkle_block_deserialize \
test/fuzz/merkleblock \
@@ -634,6 +635,12 @@ test_fuzz_kitchen_sink_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_kitchen_sink_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_kitchen_sink_SOURCES = test/fuzz/kitchen_sink.cpp
+test_fuzz_load_external_block_file_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_load_external_block_file_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_load_external_block_file_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_load_external_block_file_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_load_external_block_file_SOURCES = test/fuzz/load_external_block_file.cpp
+
test_fuzz_locale_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_locale_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_locale_LDADD = $(FUZZ_SUITE_LD_COMMON)
diff --git a/src/test/fuzz/load_external_block_file.cpp b/src/test/fuzz/load_external_block_file.cpp
new file mode 100644
index 0000000000..d9de9d9866
--- /dev/null
+++ b/src/test/fuzz/load_external_block_file.cpp
@@ -0,0 +1,31 @@
+// Copyright (c) 2020 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 <chainparams.h>
+#include <flatfile.h>
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+#include <test/util/setup_common.h>
+#include <validation.h>
+
+#include <cstdint>
+#include <vector>
+
+void initialize()
+{
+ InitializeFuzzingContext();
+}
+
+void test_one_input(const std::vector<uint8_t>& buffer)
+{
+ FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
+ FuzzedFileProvider fuzzed_file_provider = ConsumeFile(fuzzed_data_provider);
+ FILE* fuzzed_block_file = fuzzed_file_provider.open();
+ if (fuzzed_block_file == nullptr) {
+ return;
+ }
+ FlatFilePos flat_file_pos;
+ LoadExternalBlockFile(Params(), fuzzed_block_file, fuzzed_data_provider.ConsumeBool() ? &flat_file_pos : nullptr);
+}