src: use checked allocations in WASI::New()

PR-URL: #30809
Refs: #30257
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>

Author: cjihrig

src/node_wasi.cc

@@ -133,7 +133,7 @@ void WASI::New(const FunctionCallbackInfo<Value>& args) {
  Local<Array> preopens = args[2].As<Array>();
 CHECK_EQ(preopens->Length() % 2, 0);
  options.preopenc = preopens->Length() / 2;
- options.preopens = UncheckedCalloc<uvwasi_preopen_t>(options.preopenc);
+ options.preopens = Calloc<uvwasi_preopen_t>(options.preopenc);
 int index = 0;
 for (uint32_t i = 0; i < preopens->Length(); i += 2) {
 auto mapped = preopens->Get(context, i).ToLocalChecked();
@@ -143,7 +143,9 @@ void WASI::New(const FunctionCallbackInfo<Value>& args) {
  node::Utf8Value mapped_path(env->isolate(), mapped);
  node::Utf8Value real_path(env->isolate(), real);
  options.preopens[index].mapped_path = strdup(*mapped_path);
+CHECK_NOT_NULL(options.preopens[index].mapped_path);
  options.preopens[index].real_path = strdup(*real_path);
+CHECK_NOT_NULL(options.preopens[index].real_path);
  index++;
  }