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n-api: throw RangeError in napi_create_dataview() with invalid range #214

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n-api: throw RangeError in napi_create_dataview() with invalid range #214

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8 changes: 8 additions & 0 deletions src/node_api.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -3253,6 +3253,14 @@ napi_status napi_create_dataview(napi_env env,
RETURN_STATUS_IF_FALSE(env, value->IsArrayBuffer(), napi_invalid_arg);

v8::Local<v8::ArrayBuffer> buffer = value.As<v8::ArrayBuffer>();
if (byte_length + byte_offset > buffer->ByteLength()) {
napi_throw_range_error(
env,
"ERR_NAPI_INVALID_DATAVIEW_ARGS",
"byte_offset + byte_length should be less than or "
"equal to the size in bytes of the array passed in");
return napi_set_last_error(env, napi_generic_failure);
}
v8::Local<v8::DataView> DataView = v8::DataView::New(buffer, byte_offset,
byte_length);

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