| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <cutils/sockets.h> |
| |
| // https://msdn.microsoft.com/en-us/library/windows/desktop/ms741549(v=vs.85).aspx |
| // claims WSACleanup() should be called before program exit, but general |
| // consensus seems to be that it hasn't actually been necessary for a long time, |
| // likely since Windows 3.1. Additionally, trying to properly use WSACleanup() |
| // can be extremely tricky and cause deadlock when using threads or atexit(). |
| // |
| // Both adb (1) and Chrome (2) purposefully avoid WSACleanup() with no issues. |
| // (1) https://android.googlesource.com/platform/system/core.git/+/master/adb/sysdeps_win32.cpp |
| // (2) https://code.google.com/p/chromium/codesearch#chromium/src/net/base/winsock_init.cc |
| bool initialize_windows_sockets() { |
| // There's no harm in calling WSAStartup() multiple times but no benefit |
| // either, we may as well skip it after the first. |
| static bool init_success = false; |
| |
| if (!init_success) { |
| WSADATA wsaData; |
| init_success = (WSAStartup(MAKEWORD(2, 2), &wsaData) == 0); |
| } |
| |
| return init_success; |
| } |
| |
| int socket_close(cutils_socket_t sock) { |
| return closesocket(sock); |
| } |
| |
| int socket_set_receive_timeout(cutils_socket_t sock, int timeout_ms) { |
| return setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, |
| reinterpret_cast<char*>(&timeout_ms), sizeof(timeout_ms)); |
| } |
| |
| ssize_t socket_send_buffers(cutils_socket_t sock, |
| const cutils_socket_buffer_t* buffers, |
| size_t num_buffers) { |
| if (num_buffers > SOCKET_SEND_BUFFERS_MAX_BUFFERS) { |
| return -1; |
| } |
| |
| WSABUF wsa_buffers[SOCKET_SEND_BUFFERS_MAX_BUFFERS]; |
| for (size_t i = 0; i < num_buffers; ++i) { |
| // It's safe to cast away const here; WSABUF declares non-const |
| // void* because it's used for both send and receive, but since |
| // we're only sending, the data won't be modified. |
| wsa_buffers[i].buf = |
| reinterpret_cast<char*>(const_cast<void*>(buffers[i].data)); |
| wsa_buffers[i].len = buffers[i].length; |
| } |
| |
| DWORD bytes_sent = 0; |
| if (WSASend(sock, wsa_buffers, num_buffers, &bytes_sent, 0, nullptr, |
| nullptr) != SOCKET_ERROR) { |
| return bytes_sent; |
| } |
| |
| return -1; |
| } |
| |
| int android_get_control_socket(const char* name) { |
| return -1; |
| } |