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 <ifaddrs.h>
18 #include <js_native_api_types.h>
19 #include <net/if.h>
20 #include <sys/inotify.h>
21 #include <utmp.h>
22 #include <uv.h>
23
24 #define NO_ERR 0
25 #define SUCCESS 1
26 #define FAIL (-1)
Getifaddrs(napi_env env, napi_callback_info info)27 static napi_value Getifaddrs(napi_env env, napi_callback_info info)
28 {
29 struct ifaddrs *ifc;
30 int ret = getifaddrs(&ifc);
31 napi_value result = nullptr;
32 napi_create_int32(env, ret, &result);
33 freeifaddrs(ifc);
34 return result;
35 }
Freeifaddrs(napi_env env, napi_callback_info info)36 static napi_value Freeifaddrs(napi_env env, napi_callback_info info)
37 {
38 errno = NO_ERR;
39 struct ifaddrs *ifc;
40 int gitInfo = getifaddrs(&ifc);
41 if (gitInfo == NO_ERR) {
42 freeifaddrs(ifc);
43 }
44 int ret = FAIL;
45 if (errno == NO_ERR) {
46 ret = SUCCESS;
47 }
48 napi_value result = nullptr;
49 napi_create_int32(env, ret, &result);
50 return result;
51 }
52
53 EXTERN_C_START
Init(napi_env env, napi_value exports)54 static napi_value Init(napi_env env, napi_value exports)
55 {
56 napi_property_descriptor desc[] = {
57 {"getIfAddrs", nullptr, Getifaddrs, nullptr, nullptr, nullptr, napi_default, nullptr},
58 {"freeIfAddrs", nullptr, Freeifaddrs, nullptr, nullptr, nullptr, napi_default, nullptr}};
59 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
60 return exports;
61 }
62 EXTERN_C_END
63
64 static napi_module demoModule = {
65 .nm_version = 1,
66 .nm_flags = 0,
67 .nm_filename = nullptr,
68 .nm_register_func = Init,
69 .nm_modname = "libifaddrs",
70 .nm_priv = ((void *)0),
71 .reserved = {0},
72 };
73
RegisterModule(void)74 extern "C" __attribute__((constructor)) void RegisterModule(void) { napi_module_register(&demoModule); }
75