mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-11 13:10:45 +00:00
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file core.cpp Functions used to initialize/shut down the core network
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*/
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#include "../../stdafx.h"
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#include "../../debug.h"
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#include "os_abstraction.h"
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#include "packet.h"
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#include "../../string_func.h"
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#include "../../safeguards.h"
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/**
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* Initializes the network core (as that is needed for some platforms
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* @return true if the core has been initialized, false otherwise
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*/
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bool NetworkCoreInitialize()
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{
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/* Let's load the network in windows */
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#ifdef _WIN32
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{
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WSADATA wsa;
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DEBUG(net, 3, "[core] loading windows socket library");
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if (WSAStartup(MAKEWORD(2, 0), &wsa) != 0) {
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DEBUG(net, 0, "[core] WSAStartup failed, network unavailable");
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return false;
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}
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}
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#endif /* _WIN32 */
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return true;
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}
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/**
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* Shuts down the network core (as that is needed for some platforms
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*/
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void NetworkCoreShutdown()
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{
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#if defined(_WIN32)
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WSACleanup();
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#endif
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}
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#if defined(_WIN32)
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/**
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* Return the string representation of the given error from the OS's network functions.
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* @param error The error number (from \c NetworkGetLastError()).
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* @return The error message, potentially an empty string but never \c nullptr.
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*/
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const char *NetworkGetErrorString(int error)
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{
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static char buffer[512];
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if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, error,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buffer, sizeof(buffer), NULL) == 0) {
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seprintf(buffer, lastof(buffer), "Unknown error %d", error);
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}
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return buffer;
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}
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#endif /* defined(_WIN32) */
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/**
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* Serializes the GRFIdentifier (GRF ID and MD5 checksum) to the packet
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* @param p the packet to write the data to
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* @param grf the GRFIdentifier to serialize
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*/
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void NetworkSocketHandler::SendGRFIdentifier(Packet *p, const GRFIdentifier *grf)
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{
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uint j;
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p->Send_uint32(grf->grfid);
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for (j = 0; j < sizeof(grf->md5sum); j++) {
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p->Send_uint8 (grf->md5sum[j]);
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}
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}
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/**
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* Deserializes the GRFIdentifier (GRF ID and MD5 checksum) from the packet
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* @param p the packet to read the data from
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* @param grf the GRFIdentifier to deserialize
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*/
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void NetworkSocketHandler::ReceiveGRFIdentifier(Packet *p, GRFIdentifier *grf)
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{
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uint j;
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grf->grfid = p->Recv_uint32();
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for (j = 0; j < sizeof(grf->md5sum); j++) {
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grf->md5sum[j] = p->Recv_uint8();
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}
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}
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