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 <elf.h>
18 #include <ifaddrs.h>
19 #include <js_native_api_types.h>
20 #include <net/if.h>
21 #include <sys/auxv.h>
22 #include <sys/inotify.h>
23 #include <utmp.h>
24 #include <uv.h>
25
26 #define NO_ERR 0
27 #define SUCCESS 1
28 #define FAIL (-1)
29 #define PARAM_0 0
30 #define PARAM_UNNORMAL (-1)
31 #define ERRNO_0 0
32 #define ONEVAL 1
33
Getauxval(napi_env env,napi_callback_info info)34 static napi_value Getauxval(napi_env env, napi_callback_info info)
35 {
36 size_t argc = ONEVAL;
37 napi_value args[1] = {nullptr};
38 napi_get_cb_info(env, info, &argc, args, nullptr, nullptr);
39 int param;
40 napi_get_value_int32(env, args[0], ¶m);
41
42 unsigned long int val;
43 errno = ERRNO_0;
44 if (param == PARAM_0) {
45 val = getauxval(AT_BASE);
46 } else {
47 val = getauxval(PARAM_UNNORMAL);
48 }
49 int ret;
50 if (val == PARAM_0) {
51 ret = FAIL;
52 } else {
53 ret = SUCCESS;
54 }
55
56 napi_value result = nullptr;
57 napi_create_int32(env, ret, &result);
58 return result;
59 }
60
61 EXTERN_C_START
Init(napi_env env,napi_value exports)62 static napi_value Init(napi_env env, napi_value exports)
63 {
64 napi_property_descriptor desc[] = {
65 {"getauxval", nullptr, Getauxval, nullptr, nullptr, nullptr, napi_default, nullptr},
66 };
67 napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
68 return exports;
69 }
70 EXTERN_C_END
71
72 static napi_module demoModule = {
73 .nm_version = 1,
74 .nm_flags = 0,
75 .nm_filename = nullptr,
76 .nm_register_func = Init,
77 .nm_modname = "auxv1ndk",
78 .nm_priv = ((void *)0),
79 .reserved = {0},
80 };
81
RegisterModule(void)82 extern "C" __attribute__((constructor)) void RegisterModule(void) { napi_module_register(&demoModule); }
83