/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <dlfcn.h>
static const char* g_local_string = "This string is local to root library";
extern "C" const char* g_private_extern_string;
extern "C" const char* g_public_extern_string;
bool g_dlopened = false;
extern "C" const char* ns_get_local_string() {
return g_local_string;
}
extern "C" const char* ns_get_private_extern_string() {
return g_private_extern_string;
}
extern "C" const char* ns_get_public_extern_string() {
return g_public_extern_string;
}
extern "C" const char* ns_get_dlopened_string() {
void* handle = dlopen("libnstest_dlopened.so", RTLD_NOW | RTLD_GLOBAL);
if (handle == nullptr) {
return nullptr;
}
const char** result = static_cast<const char**>(dlsym(handle, "g_private_dlopened_string"));
if (result == nullptr) {
return nullptr;
} else {
g_dlopened = true;
}
return *result;
}