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Merge pull request #1703 from ethereum/fuzzer

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Executable for use with AFL
This commit is contained in:
Alex Beregszaszi 2017-02-17 22:57:47 +00:00 committed by GitHub
commit 419ab9260e
3 changed files with 115 additions and 22 deletions
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22
test/CMakeLists.txt
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@ -7,23 +7,9 @@ aux_source_directory(libsolidity SRC_LIST)
aux_source_directory(contracts SRC_LIST)
aux_source_directory(liblll SRC_LIST)
get_filename_component(TESTS_DIR "${CMAKE_CURRENT_SOURCE_DIR}" ABSOLUTE)
list(REMOVE_ITEM SRC_LIST "./fuzzer.cpp")
# search for test names and create ctest tests
enable_testing()
foreach(file ${SRC_LIST})
file(STRINGS ${CMAKE_CURRENT_SOURCE_DIR}/${file} test_list_raw REGEX "BOOST_.*TEST_(SUITE|CASE)")
set(TestSuite "DEFAULT")
foreach(test_raw ${test_list_raw})
string(REGEX REPLACE ".*TEST_(SUITE|CASE)\\(([^ ,\\)]*).*" "\\1 \\2" test ${test_raw})
if(test MATCHES "^SUITE .*")
string(SUBSTRING ${test} 6 -1 TestSuite)
elseif(test MATCHES "^CASE .*")
string(SUBSTRING ${test} 5 -1 TestCase)
add_test(NAME ${TestSuite}/${TestCase} WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/test COMMAND test -t ${TestSuite}/${TestCase})
endif(test MATCHES "^SUITE .*")
endforeach(test_raw)
endforeach(file)
get_filename_component(TESTS_DIR "${CMAKE_CURRENT_SOURCE_DIR}" ABSOLUTE)
file(GLOB HEADERS "*.h" "*/*.h")
set(EXECUTABLE soltest)
@ -34,5 +20,5 @@ eth_use(${EXECUTABLE} REQUIRED Solidity::solidity Solidity::lll)
include_directories(BEFORE ..)
target_link_libraries(${EXECUTABLE} ${Boost_UNIT_TEST_FRAMEWORK_LIBRARIES})
enable_testing()
set(CTEST_OUTPUT_ON_FAILURE TRUE)
add_executable(solfuzzer fuzzer.cpp)
target_link_libraries(solfuzzer soljson)

23
test/cmdlineTests.sh
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@ -31,7 +31,7 @@ set -e
REPO_ROOT="$(dirname "$0")"/..
SOLC="$REPO_ROOT/build/solc/solc"
# Compile all files in std and examples.
# Compile all files in std and examples.
for f in "$REPO_ROOT"/std/*.sol
do
@ -46,6 +46,21 @@ do
test -z "$output" -a "$failed" -eq 0
done
# Test library checksum
echo 'contact C {}' | "$SOLC" --link --libraries a:0x90f20564390eAe531E810af625A22f51385Cd222
! echo 'contract C {}' | "$SOLC" --link --libraries a:0x80f20564390eAe531E810af625A22f51385Cd222 2>/dev/null
echo "Testing library checksum..."
echo '' | "$SOLC" --link --libraries a:0x90f20564390eAe531E810af625A22f51385Cd222
! echo '' | "$SOLC" --link --libraries a:0x80f20564390eAe531E810af625A22f51385Cd222 2>/dev/null
echo "Testing soljson via the fuzzer..."
TMPDIR=$(mktemp -d)
(
cd "$REPO_ROOT"
REPO_ROOT=$(pwd) # make it absolute
cd "$TMPDIR"
"$REPO_ROOT"/scripts/isolate_tests.py "$REPO_ROOT"/test/contracts/* "$REPO_ROOT"/test/libsolidity/*EndToEnd*
for f in *.sol
do
"$REPO_ROOT"/build/test/solfuzzer < "$f"
done
)
rm -rf "$TMPDIR"
echo "Done."

92
test/fuzzer.cpp Normal file
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@ -0,0 +1,92 @@
/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Executable for use with AFL <http://lcamtuf.coredump.cx/afl>.
* Reads a single source from stdin and signals a failure for internal errors.
*/
#include <json/json.h>
#include <string>
#include <iostream>
using namespace std;
extern "C"
{
extern char const* compileJSON(char const* _input, bool _optimize);
}
string contains(string const& _haystack, vector<string> const& _needles)
{
for (string const& needle: _needles)
if (_haystack.find(needle) != string::npos)
return needle;
return "";
}
int main()
{
string input;
while (!cin.eof())
{
string s;
getline(cin, s);
input += s + '\n';
}
bool optimize = true;
string outputString(compileJSON(input.c_str(), optimize));
Json::Value outputJson;
if (!Json::Reader().parse(outputString, outputJson))
{
cout << "Compiler produced invalid JSON output." << endl;
abort();
}
if (outputJson.isMember("errors"))
{
if (!outputJson["errors"].isArray())
{
cout << "Output JSON has \"errors\" but it is not an array." << endl;
abort();
}
for (Json::Value const& error: outputJson["errors"])
{
string invalid = contains(error.asString(), vector<string>{
"Compiler error",
"Internal compiler error",
"Exception during compilation",
"Unknown exception during compilation",
"Unknown exception while generating contract data output",
"Unknown exception while generating formal method output",
"Unknown exception while generating source name output",
"Unknown error while generating JSON"
});
if (!invalid.empty())
{
cout << "Invalid error: \"" << invalid << "\"" << endl;
abort();
}
}
}
else if (!outputJson.isMember("contracts"))
{
cout << "Output JSON has neither \"errors\" nor \"contracts\"." << endl;
abort();
}
return 0;
}