Lagom/Fuzzers: Add URL fuzzer

Author: https://github.com/Lubrsi
Commit: https://github.com/SerenityOS/serenity/commit/030dac8c4db
Pull-request: https://github.com/SerenityOS/serenity/pull/4258

Meta/Lagom/Fuzzers/CMakeLists.txt

@@ -30,6 +30,7 @@ add_simple_fuzzer(FuzzMarkdown)
 add_simple_fuzzer(FuzzRegexECMA262)
 add_simple_fuzzer(FuzzRegexPosixExtended)
 add_simple_fuzzer(FuzzShell)
+add_simple_fuzzer(FuzzURL)
 
 if (NOT ENABLE_OSS_FUZZ AND NOT ENABLE_FUZZER_SANITIZER)
 add_executable(FuzzilliJs FuzzilliJs.cpp)

Meta/Lagom/Fuzzers/FuzzURL.cpp

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/URL.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto string_view = StringView(data, size);
+    auto url = URL(string_view);
+    return 0;
+}