weaselab/conflict-set
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Allow variable length keys in fuzz test

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This commit is contained in:
Andrew Noyes
2024-01-21 14:30:40 -08:00
parent 4459c3cb87
commit 605d8c8715
1 changed files with 22 additions and 8 deletions
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30
ConflictSet.cpp
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@@ -1251,15 +1251,22 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
int numWrites = gArbitrary.bounded(10);
int64_t v = ++writeVersion;
auto *writes = new (arena) ConflictSet::WriteRange[numWrites];
std::set<int, std::less<int>, ArenaAlloc<int>> keys{
std::set<std::string_view, std::less<std::string_view>, ArenaAlloc<std::string_view>> keys{
ArenaAlloc<int>(&arena)};
while (int(keys.size()) < numWrites) {
keys.insert(gArbitrary.hasEntropy() ? gArbitrary.bounded(100)
: rand.bounded(100));
if (!gArbitrary.hasEntropy()) {
// Tell the fuzzer it's not interesting
return -1;
}
int keyLen = gArbitrary.bounded(8);
auto* begin = new (arena) uint8_t[keyLen];
gArbitrary.randomHex(begin, keyLen);
keys.insert(std::string_view((const char*)begin, keyLen));
}
auto iter = keys.begin();
for (int i = 0; i < numWrites; ++i) {
writes[i].begin = toKey(arena, *iter++);
writes[i].begin.p = (const uint8_t*)iter->data();
writes[i].begin.len = iter->size();
writes[i].end.len = 0;
writes[i].writeVersion = v;
}
@@ -1274,15 +1281,22 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
int numReads = gArbitrary.bounded(10);
int64_t v = writeVersion - gArbitrary.bounded(10);
auto *reads = new (arena) ConflictSet::ReadRange[numReads];
std::set<int, std::less<int>, ArenaAlloc<int>> keys{
std::set<std::string_view, std::less<std::string_view>, ArenaAlloc<std::string_view>> keys{
ArenaAlloc<int>(&arena)};
while (int(keys.size()) < numReads) {
keys.insert(gArbitrary.hasEntropy() ? gArbitrary.bounded(100)
: rand.bounded(100));
if (!gArbitrary.hasEntropy()) {
// Tell the fuzzer it's not interesting
return -1;
}
int keyLen = gArbitrary.bounded(8);
auto* begin = new (arena) uint8_t[keyLen];
gArbitrary.randomHex(begin, keyLen);
keys.insert(std::string_view((const char*)begin, keyLen));
}
auto iter = keys.begin();
for (int i = 0; i < numReads; ++i) {
reads[i].begin = toKey(arena, *iter++);
reads[i].begin.p = (const uint8_t*)iter->data();
reads[i].begin.len = iter->size();
reads[i].end.len = 0;
reads[i].readVersion = v;
}