| /* |
| * Copyright (C) 2016 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 <arpa/inet.h> |
| #include <errno.h> |
| #include <netdb.h> |
| #include <netinet/in.h> |
| #include <string.h> |
| #include <sys/socket.h> |
| |
| #include <iostream> |
| #include <string> |
| |
| #include <android/multinetwork.h> |
| #include "common.h" |
| |
| |
| int main(int argc, const char* argv[]) { |
| int rval = -1; |
| |
| struct Arguments args; |
| if (!args.parseArguments(argc, argv)) { return rval; } |
| |
| const struct addrinfo hints = { |
| .ai_family = args.family, |
| .ai_socktype = SOCK_DGRAM, |
| }; |
| struct addrinfo *result = nullptr; |
| |
| std::cout << "# " << args.arg1 |
| << " (via nethandle " << args.nethandle << "):" |
| << std::endl; |
| |
| switch (args.api_mode) { |
| case ApiMode::EXPLICIT: |
| rval = android_getaddrinfofornetwork(args.nethandle, |
| args.arg1, nullptr, &hints, &result); |
| break; |
| case ApiMode::PROCESS: |
| if (args.nethandle != NETWORK_UNSPECIFIED) { |
| rval = android_setprocnetwork(args.nethandle); |
| if (rval != 0) { |
| std::cerr << "android_setprocnetwork returned " << rval |
| << std::endl; |
| return rval; |
| } |
| } |
| rval = getaddrinfo(args.arg1, nullptr, &hints, &result); |
| break; |
| default: |
| // Unreachable. |
| std::cerr << "Unknown api mode." << std::endl; |
| return -1; |
| } |
| |
| if (rval != 0) { |
| std::cerr << "DNS resolution failure; gaierror=" << rval |
| << " [" << gai_strerror(rval) << "]" |
| << std::endl; |
| return rval; |
| } |
| |
| for (struct addrinfo* rp = result; rp != nullptr; rp = rp->ai_next) { |
| std::cout << inetSockaddrToString(rp->ai_addr) << std::endl; |
| } |
| |
| freeaddrinfo(result); |
| return 0; |
| } |