1 files changed, 93 insertions, 0 deletions
diff --git a/fuzz/fuzz_compile.c b/fuzz/fuzz_compile.c
new file mode 100644
index 0000000..0ab1b03
--- /dev/null
+++ b/fuzz/fuzz_compile.c
@@ -0,0 +1,93 @@
+/* Copyright 2020 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+#include "quickjs.h"
+#include "quickjs-libc.h"
+#include "cutils.h"
+#include "fuzz/fuzz_common.h"
+
+#include <stdint.h>
+#include <stdio.h>
+
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    if (size == 0)
+        return 0;
+
+    JSRuntime *rt = JS_NewRuntime();
+    JSContext *ctx = JS_NewContext(rt);
+    test_one_input_init(rt, ctx);
+
+    uint8_t *null_terminated_data = malloc(size + 1);
+    memcpy(null_terminated_data, data, size);
+    null_terminated_data[size] = 0;
+
+    JSValue obj = JS_Eval(ctx, (const char *)null_terminated_data, size, "<none>", JS_EVAL_FLAG_COMPILE_ONLY | JS_EVAL_TYPE_MODULE);
+    free(null_terminated_data);
+    //TODO target with JS_ParseJSON
+    if (JS_IsException(obj)) {
+        js_std_free_handlers(rt);
+        JS_FreeValue(ctx, obj);
+        JS_FreeContext(ctx);
+        JS_FreeRuntime(rt);
+        return 0;
+    }
+    obj = js_std_await(ctx, obj);
+    size_t bytecode_size;
+    uint8_t* bytecode = JS_WriteObject(ctx, &bytecode_size, obj, JS_WRITE_OBJ_BYTECODE);
+    JS_FreeValue(ctx, obj);
+    if (!bytecode) {
+        js_std_free_handlers(rt);
+        JS_FreeContext(ctx);
+        JS_FreeRuntime(rt);
+        return 0;
+    }
+    obj = JS_ReadObject(ctx, bytecode, bytecode_size, JS_READ_OBJ_BYTECODE);
+    js_free(ctx, bytecode);
+    if (JS_IsException(obj)) {
+        js_std_free_handlers(rt);
+        JS_FreeContext(ctx);
+        JS_FreeRuntime(rt);
+        return 0;
+    }
+    reset_nbinterrupts();
+    /* this is based on
+     * js_std_eval_binary(ctx, bytecode, bytecode_size, 0);
+     * modified so as not to exit on JS exception
+     */
+    JSValue val;
+    if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) {
+        if (JS_ResolveModule(ctx, obj) < 0) {
+            JS_FreeValue(ctx, obj);
+            js_std_free_handlers(rt);
+            JS_FreeContext(ctx);
+            JS_FreeRuntime(rt);
+            return 0;
+        }
+        js_module_set_import_meta(ctx, obj, FALSE, TRUE);
+    }
+    val = JS_EvalFunction(ctx, obj);
+    if (JS_IsException(val)) {
+        js_std_dump_error(ctx);
+    } else {
+        js_std_loop(ctx);
+    }
+    JS_FreeValue(ctx, val);
+    js_std_free_handlers(rt);
+    JS_FreeContext(ctx);
+    JS_FreeRuntime(rt);
+
+    return 0;
+}