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/*
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* dynsockets.cpp - ip router
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*
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* Basilisk II (C) 1997-2001 Christian Bauer
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*
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* Windows platform specific code copyright (C) Lauri Pesonen
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "sysdeps.h"
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#include "dynsockets.h"
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#include "dump.h"
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#include "main.h"
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#if DEBUG
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#pragma optimize("",off)
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#endif
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#include "debug.h"
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/*
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Cannot link statically to winsock. We need ws2, but there are
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Win95 b2 users who can't (or won't) upgrade.
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*/
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static const char *wslib = "WS2_32.DLL";
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static HMODULE hWinsock32 = 0;
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static WSADATA WSAData;
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int (WSAAPI *_WSAStartup) (WORD, LPWSADATA) = 0;
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int (WSAAPI *_WSACleanup) (void) = 0;
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int (WSAAPI *_gethostname) (char *, int) = 0;
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char * (WSAAPI *_inet_ntoa) (struct in_addr) = 0;
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struct hostent * (WSAAPI *_gethostbyname) (const char *) = 0;
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int (WSAAPI *_send) (SOCKET, const char *, int, int) = 0;
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int (WSAAPI *_sendto) (SOCKET, const char *, int, int, const struct sockaddr *, int) = 0;
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int (WSAAPI *_recv) (SOCKET, char *, int, int) = 0;
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int (WSAAPI *_recvfrom) (SOCKET, char *, int, int, struct sockaddr *, int *) = 0;
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int (WSAAPI *_listen) (SOCKET, int) = 0;
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SOCKET (WSAAPI *_accept) (SOCKET, struct sockaddr *, int *) = 0;
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SOCKET (WSAAPI *_socket) (int, int, int) = 0;
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int (WSAAPI *_bind) (SOCKET, const struct sockaddr *, int) = 0;
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int (WSAAPI *_WSAAsyncSelect) (SOCKET, HWND, u_int, long) = 0;
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int (WSAAPI *_closesocket) (SOCKET) = 0;
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int (WSAAPI *_getsockname) (SOCKET, struct sockaddr *, int *) = 0;
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int (WSAAPI *_WSARecvFrom) (SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, struct sockaddr *, LPINT, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE) = 0;
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int (WSAAPI *_WSAGetLastError) (void) = 0;
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int (WSAAPI *_WSAConnect) (SOCKET, const struct sockaddr *, int, LPWSABUF, LPWSABUF, LPQOS, LPQOS) = 0;
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int (WSAAPI *_setsockopt) (SOCKET, int, int, const char *, int) = 0;
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int (WSAAPI *_WSAEventSelect) (SOCKET, WSAEVENT, long) = 0;
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WSAEVENT (WSAAPI *_WSACreateEvent) (void) = 0;
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BOOL (WSAAPI *_WSACloseEvent) (WSAEVENT) = 0;
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BOOL (WSAAPI *_WSAResetEvent) (WSAEVENT) = 0;
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int (WSAAPI *_WSAEnumNetworkEvents) (SOCKET, WSAEVENT, LPWSANETWORKEVENTS) = 0;
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int (WSAAPI *_shutdown) (SOCKET, int) = 0;
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int (WSAAPI *_WSASend) (SOCKET, LPWSABUF, DWORD, LPDWORD, DWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE) = 0;
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int (WSAAPI *_WSARecv) (SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE) = 0;
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unsigned long (WSAAPI *_inet_addr) (const char *) = 0;
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static bool load_sockets()
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{
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bool result = false;
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hWinsock32 = LoadLibrary( wslib );
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if(!hWinsock32) {
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ErrorAlert("Could not load Winsock libraries; router module is not available. Please install Windows sockets 2.");
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} else {
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_WSAStartup = (int (WSAAPI *)(WORD, LPWSADATA))GetProcAddress( hWinsock32, "WSAStartup" );
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_WSACleanup = (int (WSAAPI *)(void))GetProcAddress( hWinsock32, "WSACleanup" );
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_gethostname = (int (WSAAPI *)(char *, int))GetProcAddress( hWinsock32, "gethostname" );
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_inet_ntoa = (char * (WSAAPI *)(struct in_addr))GetProcAddress( hWinsock32, "inet_ntoa" );
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_gethostbyname = (struct hostent * (WSAAPI *)(const char *))GetProcAddress( hWinsock32, "gethostbyname" );
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_send = (int (WSAAPI *)(SOCKET, const char *, int, int))GetProcAddress( hWinsock32, "send" );
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_sendto = (int (WSAAPI *)(SOCKET, const char *, int, int, const struct sockaddr *, int))GetProcAddress( hWinsock32, "sendto" );
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_recv = (int (WSAAPI *)(SOCKET, char *, int, int))GetProcAddress( hWinsock32, "recv" );
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_recvfrom = (int (WSAAPI *)(SOCKET, char *, int, int, struct sockaddr *, int *))GetProcAddress( hWinsock32, "recvfrom" );
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_listen = (int (WSAAPI *)(SOCKET, int))GetProcAddress( hWinsock32, "listen" );
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_accept = (SOCKET (WSAAPI *)(SOCKET, struct sockaddr *, int *))GetProcAddress( hWinsock32, "accept" );
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_socket = (SOCKET (WSAAPI *)(int, int, int))GetProcAddress( hWinsock32, "socket" );
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_bind = (int (WSAAPI *)(SOCKET, const struct sockaddr *, int))GetProcAddress( hWinsock32, "bind" );
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_WSAAsyncSelect = (int (WSAAPI *)(SOCKET, HWND, u_int, long))GetProcAddress( hWinsock32, "WSAAsyncSelect" );
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_closesocket = (int (WSAAPI *)(SOCKET))GetProcAddress( hWinsock32, "closesocket" );
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_getsockname = (int (WSAAPI *)(SOCKET, struct sockaddr *, int *))GetProcAddress( hWinsock32, "getsockname" );
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_WSARecvFrom = (int (WSAAPI *)(SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, struct sockaddr *, LPINT, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE))GetProcAddress( hWinsock32, "WSARecvFrom" );
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_WSAGetLastError = (int (WSAAPI *)(void))GetProcAddress( hWinsock32, "WSAGetLastError" );
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_WSAConnect = (int (WSAAPI *)(SOCKET, const struct sockaddr *, int, LPWSABUF, LPWSABUF, LPQOS, LPQOS))GetProcAddress( hWinsock32, "WSAConnect" );
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_setsockopt = (int (WSAAPI *)(SOCKET, int, int, const char *, int))GetProcAddress( hWinsock32, "setsockopt" );
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_WSAEventSelect = (int (WSAAPI *)(SOCKET, WSAEVENT, long))GetProcAddress( hWinsock32, "WSAEventSelect" );
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_WSACreateEvent = (WSAEVENT (WSAAPI *)(void))GetProcAddress( hWinsock32, "WSACreateEvent" );
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_WSACloseEvent = (BOOL (WSAAPI *)(WSAEVENT))GetProcAddress( hWinsock32, "WSACloseEvent" );
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_WSAResetEvent = (BOOL (WSAAPI *)(WSAEVENT))GetProcAddress( hWinsock32, "WSAResetEvent" );
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_WSAEnumNetworkEvents = (BOOL (WSAAPI *)(SOCKET, WSAEVENT, LPWSANETWORKEVENTS))GetProcAddress( hWinsock32, "WSAEnumNetworkEvents" );
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_shutdown = (int (WSAAPI *)(SOCKET, int))GetProcAddress( hWinsock32, "shutdown" );
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_WSASend = (int (WSAAPI *)(SOCKET, LPWSABUF, DWORD, LPDWORD, DWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE))GetProcAddress( hWinsock32, "WSASend" );
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_WSARecv = (int (WSAAPI *)(SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE))GetProcAddress( hWinsock32, "WSARecv" );
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_inet_addr = (unsigned long (WSAAPI *)(const char *))GetProcAddress( hWinsock32, "inet_addr" );
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if( _WSAStartup && _WSACleanup && _gethostname && _inet_ntoa && _gethostbyname &&
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_send && _sendto && _recv && _recvfrom && _listen && _accept && _socket && _bind &&
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_WSAAsyncSelect && _closesocket && _getsockname && _WSARecvFrom && _WSAGetLastError &&
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_WSAConnect && _setsockopt && _WSAEventSelect && _WSACreateEvent && _WSACloseEvent &&
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_WSAResetEvent && _WSAEnumNetworkEvents && _shutdown && _WSASend && _WSARecv && _inet_addr
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)
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{
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result = true;
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} else {
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ErrorAlert("Could not find required entry points; router module is not available. Please install Windows sockets 2.");
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}
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}
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return result;
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}
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bool dynsockets_init(void)
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{
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bool result = false;
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if(load_sockets()) {
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if( (_WSAStartup(MAKEWORD(2,0), &WSAData)) != 0 ||
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LOBYTE( WSAData.wVersion ) != 2 ||
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HIBYTE( WSAData.wVersion ) != 0 )
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{
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ErrorAlert("Could not start Windows sockets version 2.");
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} else {
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result = true;
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}
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}
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return result;
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}
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void dynsockets_final(void)
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{
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if(hWinsock32) {
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_WSACleanup();
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FreeLibrary( hWinsock32 );
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hWinsock32 = 0;
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}
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_WSAStartup = 0;
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_WSACleanup = 0;
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_gethostname = 0;
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_inet_ntoa = 0;
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_gethostbyname = 0;
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_send = 0;
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_sendto = 0;
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_recv = 0;
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_recvfrom = 0;
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_listen = 0;
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_accept = 0;
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_socket = 0;
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_bind = 0;
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_WSAAsyncSelect = 0;
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_closesocket = 0;
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_getsockname = 0;
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_WSARecvFrom = 0;
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_WSAGetLastError = 0;
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_WSAConnect = 0;
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_setsockopt = 0;
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_WSAEventSelect = 0;
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_WSACreateEvent = 0;
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_WSACloseEvent = 0;
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_WSAResetEvent = 0;
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_WSAEnumNetworkEvents = 0;
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_shutdown = 0;
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_WSASend = 0;
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_WSARecv = 0;
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_inet_addr = 0;
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}
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