src/network/core/core.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /**
   9  * @file core.cpp Functions used to initialize/shut down the core network
  10  */
  11
  12 #include "../../stdafx.h"
  13 #include "../../debug.h"
  14 #include "os_abstraction.h"
  15 #include "packet.h"
  16
  17 #include "../../safeguards.h"
  18
  19
  20 /**
  21  * Initializes the network core (as that is needed for some platforms
  22  * @return true if the core has been initialized, false otherwise
  23  */
  24 bool NetworkCoreInitialize()
  25 {
  26 /* Let's load the network in windows */
  27 #ifdef _WIN32
  28         {
  29                 WSADATA wsa;
  30                 DEBUG(net, 3, "[core] loading windows socket library");
  31                 if (WSAStartup(MAKEWORD(2, 0), &wsa) != 0) {
  32                         DEBUG(net, 0, "[core] WSAStartup failed, network unavailable");
  33                         return false;
  34                 }
  35         }
  36 #endif /* _WIN32 */
  37
  38         return true;
  39 }
  40
  41 /**
  42  * Shuts down the network core (as that is needed for some platforms
  43  */
  44 void NetworkCoreShutdown()
  45 {
  46 #if defined(_WIN32)
  47         WSACleanup();
  48 #endif
  49 }
  50
  51
  52 /**
  53  * Serializes the GRFIdentifier (GRF ID and MD5 checksum) to the packet
  54  * @param p   the packet to write the data to
  55  * @param grf the GRFIdentifier to serialize
  56  */
  57 void NetworkSocketHandler::SendGRFIdentifier(Packet *p, const GRFIdentifier *grf)
  58 {
  59         uint j;
  60         p->Send_uint32(grf->grfid);
  61         for (j = 0; j < sizeof(grf->md5sum); j++) {
  62                 p->Send_uint8 (grf->md5sum[j]);
  63         }
  64 }
  65
  66 /**
  67  * Deserializes the GRFIdentifier (GRF ID and MD5 checksum) from the packet
  68  * @param p   the packet to read the data from
  69  * @param grf the GRFIdentifier to deserialize
  70  */
  71 void NetworkSocketHandler::ReceiveGRFIdentifier(Packet *p, GRFIdentifier *grf)
  72 {
  73         uint j;
  74         grf->grfid = p->Recv_uint32();
  75         for (j = 0; j < sizeof(grf->md5sum); j++) {
  76                 grf->md5sum[j] = p->Recv_uint8();
  77         }
  78 }