From 617d11278016831bc8f2256a226fca5b5e94dc9c Mon Sep 17 00:00:00 2001
From: Ali Mohammad Pur <ali.mpfard@gmail.com>
Date: Sun, 12 Feb 2023 17:54:30 +0330
Subject: [PATCH] Meta: Add a `Shell --posix` parser fuzzer

---
 Meta/Lagom/Fuzzers/CMakeLists.txt     |  1 +
 Meta/Lagom/Fuzzers/FuzzShellPosix.cpp | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 Meta/Lagom/Fuzzers/FuzzShellPosix.cpp

diff --git a/Meta/Lagom/Fuzzers/CMakeLists.txt b/Meta/Lagom/Fuzzers/CMakeLists.txt
index 0b6eb0f883..c3c7fc5205 100644
--- a/Meta/Lagom/Fuzzers/CMakeLists.txt
+++ b/Meta/Lagom/Fuzzers/CMakeLists.txt
@@ -62,6 +62,7 @@ add_simple_fuzzer(FuzzSHA256 LibCrypto)
 add_simple_fuzzer(FuzzSHA384 LibCrypto)
 add_simple_fuzzer(FuzzSHA512 LibCrypto)
 add_simple_fuzzer(FuzzShell LibShell)
+add_simple_fuzzer(FuzzShellPosix LibShell)
 add_simple_fuzzer(FuzzSQLParser LibSQL)
 add_simple_fuzzer(FuzzTar LibArchive)
 add_simple_fuzzer(FuzzTTF LibGfx)
diff --git a/Meta/Lagom/Fuzzers/FuzzShellPosix.cpp b/Meta/Lagom/Fuzzers/FuzzShellPosix.cpp
new file mode 100644
index 0000000000..e1254720a2
--- /dev/null
+++ b/Meta/Lagom/Fuzzers/FuzzShellPosix.cpp
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2020-2023, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/StringView.h>
+#include <Shell/PosixParser.h>
+#include <Shell/Shell.h>
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C" int LLVMFuzzerTestOneInput(uint8_t const* data, size_t size)
+{
+    auto source = StringView(static_cast<unsigned char const*>(data), size);
+    Shell::Posix::Parser parser(source);
+    (void)parser.parse();
+    return 0;
+}