Add eofparsefuzz testing tool

Author: chfast

test/CMakeLists.txt

@@ -26,8 +26,9 @@ add_subdirectory(unittests)
 set(targets evmone-bench evmone-bench-internal evmone-eofparse evmone-state evmone-statetest evmone-t8n evmone-unittests testutils)
 
 if(EVMONE_FUZZING)
+    add_subdirectory(eofparsefuzz)
     add_subdirectory(fuzzer)
-    list(APPEND targets evmone-fuzzer)
+    list(APPEND targets evmone-eofparsefuzz evmone-fuzzer)
 endif()
 
 set_target_properties(

test/eofparsefuzz/CMakeLists.txt

@@ -0,0 +1,18 @@
+# evmone-fuzzer: LibFuzzer based testing tool for EVMC-compatible EVM implementations.
+# Copyright 2023 The evmone Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+get_target_property(type evmone TYPE)
+if(NOT type STREQUAL STATIC_LIBRARY)
+    message(FATAL_ERROR "The evmone must be built as static library")
+endif()
+
+if(fuzzing_coverage)
+    set(CMAKE_EXE_LINKER_FLAGS "-fsanitize=fuzzer")
+else()
+    string(REPLACE fuzzer-no-link fuzzer CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS})
+endif()
+
+add_executable(evmone-eofparsefuzz eofparsefuzz.cpp)
+target_link_libraries(evmone-eofparsefuzz PRIVATE evmone)
+target_include_directories(evmone-eofparsefuzz PRIVATE ${evmone_private_include_dir})

test/eofparsefuzz/eofparsefuzz.cpp

@@ -0,0 +1,13 @@
+// evmone-fuzzer: LibFuzzer based testing tool for EVMC-compatible EVM implementations.
+// Copyright 2019 The evmone Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+#include <evmone/eof.hpp>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size) noexcept
+{
+    const evmone::bytes_view eof{data, data_size};
+    if (evmone::validate_eof(EVMC_CANCUN, eof) == evmone::EOFValidationError::success)
+        (void)evmone::read_valid_eof1_header(eof.begin());
+    return 0;
+}