Lagom/Fuzzers: Add fuzzers for Windows-1251 and Windows-1255 decoders

Author: https://github.com/IdanHo
Commit: https://github.com/SerenityOS/serenity/commit/5c385d06e8e
Pull-request: https://github.com/SerenityOS/serenity/pull/6787
Issue: https://github.com/SerenityOS/serenity/issues/2563

Meta/Lagom/Fuzzers/CMakeLists.txt

@@ -16,6 +16,7 @@ function(add_simple_fuzzer name)
 endfunction()
 
 add_simple_fuzzer(FuzzBMPLoader)
+add_simple_fuzzer(FuzzCyrillicDecoder)
 add_simple_fuzzer(FuzzDeflateCompression)
 add_simple_fuzzer(FuzzDeflateDecompression)
 add_simple_fuzzer(FuzzELF)
@@ -29,6 +30,7 @@ add_simple_fuzzer(FuzzPNGLoader)
 add_simple_fuzzer(FuzzPBMLoader)
 add_simple_fuzzer(FuzzPGMLoader)
 add_simple_fuzzer(FuzzPPMLoader)
+add_simple_fuzzer(FuzzHebrewDecoder)
 add_simple_fuzzer(FuzzHttpRequest)
 add_simple_fuzzer(FuzzJs)
 add_simple_fuzzer(FuzzLatin1Decoder)

Meta/Lagom/Fuzzers/FuzzCyrillicDecoder.cpp

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2021, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/String.h>
+#include <LibTextCodec/Decoder.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto* decoder = TextCodec::decoder_for("windows-1251");
+    VERIFY(decoder);
+    decoder->to_utf8({ data, size });
+    return 0;
+}

Meta/Lagom/Fuzzers/FuzzHebrewDecoder.cpp

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2021, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/String.h>
+#include <LibTextCodec/Decoder.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    auto* decoder = TextCodec::decoder_for("windows-1255");
+    VERIFY(decoder);
+    decoder->to_utf8({ data, size });
+    return 0;
+}