1 files changed, 90 insertions, 0 deletions
diff --git a/test/src/fuzz.cpp b/test/src/fuzz.cpp
new file mode 100644
index 0000000000..b498bc5b48
--- /dev/null
+++ b/test/src/fuzz.cpp
@@ -0,0 +1,90 @@
+#include <mbgl/platform/log.hpp>
+#include <mbgl/style/parser.hpp>
+#include <mbgl/util/mapbox.hpp>
+#include <mbgl/tile/vector_tile_data.hpp>
+
+#include <mbgl/style/rapidjson_conversion.hpp>
+
+#include <mbgl/style/conversion.hpp>
+#include <mbgl/style/conversion/filter.hpp>
+
+#include <protozero/exception.hpp>
+
+#include <iostream>
+#include <istream>
+#include <iterator>
+#include <ostream>
+#include <string>
+#include <unordered_map>
+
+typedef void (*Callback)(std::string);
+static const std::unordered_map<std::string, Callback> fuzzers{
+    { "source-url",
+      [](std::string input) { mbgl::util::mapbox::normalizeSourceURL(input, "key"); } },
+    { "style-url", [](std::string input) { mbgl::util::mapbox::normalizeStyleURL(input, "key"); } },
+    { "sprite-url",
+      [](std::string input) { mbgl::util::mapbox::normalizeSpriteURL(input, "key"); } },
+    { "glyphs-url",
+      [](std::string input) { mbgl::util::mapbox::normalizeGlyphsURL(input, "key"); } },
+    { "tile-url", [](std::string input) { mbgl::util::mapbox::normalizeTileURL(input, "key"); } },
+    { "canonicalize-tile-url",
+      [](std::string input) {
+          mbgl::util::mapbox::canonicalizeTileURL(input, mbgl::SourceType::Raster, 42);
+      } },
+    { "parse-style",
+      [](std::string input) {
+          mbgl::style::Parser parser;
+          parser.parse(input);
+      } },
+    { "parse-filter",
+      [](std::string input) {
+          using namespace mbgl;
+          using namespace mbgl::style;
+          rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> document;
+          document.Parse<0>(input.c_str());
+          if (!document.HasParseError()) {
+              conversion::convert<Filter>(document);
+          }
+      } },
+    { "parse-tile",
+      [](std::string input) {
+          mbgl::VectorTileData tile(std::make_shared<const std::string>(std::move(input)));
+          try {
+              tile.getLayer("foo");
+          } catch (protozero::exception& ex) {
+          }
+      } },
+};
+
+void printValidFuzzers() {
+    std::cerr << "Valid fuzzers are:" << std::endl;
+    for (auto& fuzzer : fuzzers) {
+        std::cerr << "  - " << fuzzer.first << std::endl;
+    }
+}
+
+int main(int argc, char* argv[]) {
+    if (argc < 2) {
+        std::cerr << "Usage: fuzz <fuzzers>" << std::endl;
+        printValidFuzzers();
+        return 1;
+    }
+
+    auto it = fuzzers.find(argv[1]);
+    if (it == fuzzers.end()) {
+        std::cerr << "Fuzzer '" << argv[1] << "' does not exist." << std::endl;
+        printValidFuzzers();
+        return 1;
+    }
+
+    // Disables logging
+    mbgl::Log::setObserver(std::make_unique<mbgl::Log::NullObserver>());
+
+    while (__AFL_LOOP(1000)) {
+        // Pass stdin to the function.
+        std::cin >> std::noskipws;
+        it->second({ std::istream_iterator<char>(std::cin), std::istream_iterator<char>() });
+    }
+
+    return 0;
+}