message: feat(runtime-c-api) Check pointers aren't null in `wasmer_import_trap`.
diff: @@ -674,7 +674,23 @@ pub unsafe extern "C" fn wasmer_import_func_new(
  pub unsafe extern "C" fn wasmer_import_trap(
  ctx: *const wasmer_instance_context_t,
  error_message: *const c_char,
  -) -> c_uint {
  +) -> wasmer_result_t {
  + if ctx.is_null() {
  + update_last_error(CApiError {
  + msg: "ctx ptr is null in wasmer_import_trap".to_string(),
  + });
  +
  + return wasmer_result_t::WASMER_ERROR;
  + }
  +
  + if error_message.is_null() {
  + update_last_error(CApiError {
  + msg: "error_message is null in wasmer_import_trap".to_string(),
  + });
  +
  + return wasmer_result_t::WASMER_ERROR;
  + }
  +
  let ctx = &*(ctx as *const Ctx);
  let error_message = CStr::from_ptr(error_message).to_str().unwrap();
  @@ -683,7 +699,7 @@ pub unsafe extern "C" fn wasmer_import_trap(
  .do_early_trap(Box::new(error_message)); // never returns
  #[allow(unreachable_code)]
  - 0
  + wasmer_result_t::WASMER_OK
  }
  /// Sets the params buffer to the parameter types of the given wasmer_import_func_t
  