112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/*
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* Copyright (C) 2009 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou@yahoo.fr>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tnet.c
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* @brief Network utilities.
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*
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* @author Mamadou Diop <diopmamadou(at)yahoo.fr>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tnet.h"
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#include "tnet_utils.h"
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#include "tsk_debug.h"
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static int __tnet_started = 0;
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/**
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* @fn int tnet_startup()
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*
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* @brief This is probably the most important function. You MUST call this function to initialize the network stack before calling any tnet_* function.
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* You MUST call @ref tsip_cleanup to cleanup the network stack.
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* @author Mamadou
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* @date 12/11/2009
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*
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* @sa @ref tnet_cleanup.
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* @return Zero if succeed and error code otherwise.
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**/
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int tnet_startup()
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{
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int err = 0;
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if(__tnet_started) goto bail;
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#if TNET_UNDER_WINDOWS
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{
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WORD wVersionRequested;
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WSADATA wsaData;
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wVersionRequested = MAKEWORD(2, 2);
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err = WSAStartup(wVersionRequested, &wsaData);
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if (err != 0)
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{
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TSK_DEBUG_FATAL("WSAStartup failed with error: %d\n", err);
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return 1;
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}
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if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2)
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{
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TSK_DEBUG_FATAL("Could not find a usable version of Winsock.dll\n");
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tnet_cleanup();
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return 1;
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}
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else
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{
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__tnet_started = 1;
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TSK_DEBUG_INFO("The Winsock 2.2 dll was found okay\n");
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}
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}
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#else
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__tnet_started = 1;
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#endif /* TSIP_UNDER_WINDOWS */
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bail:
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return err;
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}
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/**
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* @fn int tnet_cleanup()
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*
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* @brief Cleanup the network stack.
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*
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* @author Mamadou
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* @date 12/11/2009
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*
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* @sa @ref tnet_cleanup.
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* @return Zero if succeed and error code otherwise.
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**/
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int tnet_cleanup()
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{
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if(!__tnet_started) goto bail;
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#if TNET_UNDER_WINDOWS
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__tnet_started = 0;
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return WSACleanup();
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#else
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__tnet_started = 0;
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#endif
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bail:
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return 0;
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} |