1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "napi/native_api.h"
17 #include <cerrno>
18 #include <ifaddrs.h>
19 #include <js_native_api_types.h>
20
21 #define NO_ERR 0
22
Freeifaddrs(napi_env env, napi_callback_info info)23 static napi_value Freeifaddrs(napi_env env, napi_callback_info info)
24 {
25 struct ifaddrs *ifc = nullptr;
26 errno = NO_ERR;
27 int ret = getifaddrs(&ifc);
28 if (!ret) {
29 freeifaddrs(ifc);
30 }
31 napi_value result = nullptr;
32 napi_create_int32(env, ret, &result);
33 return result;
34 }
35
36 EXTERN_C_START
Init(napi_env env, napi_value exports)37 static napi_value Init(napi_env env, napi_value exports)
38 {
39 napi_property_descriptor desc[] = {
40 {"freeIfAddrs", nullptr, Freeifaddrs, nullptr, nullptr, nullptr, napi_default, nullptr}};
41 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
42 return exports;
43 }
44 EXTERN_C_END
45
46 static napi_module demoModule = {
47 .nm_version = 1,
48 .nm_flags = 0,
49 .nm_filename = nullptr,
50 .nm_register_func = Init,
51 .nm_modname = "libifaddrs1",
52 .nm_priv = ((void *)0),
53 .reserved = {0},
54 };
55
RegisterModule(void)56 extern "C" __attribute__((constructor)) void RegisterModule(void) { napi_module_register(&demoModule); }
57