449 lines
12 KiB
C
449 lines
12 KiB
C
/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2010-2014 QuakeSpasm developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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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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// net_wipx.c
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#include "q_stdinc.h"
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#include "net_sys.h"
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#include <wsipx.h>
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#include "q_defs.h"
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#include "net_defs.h"
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#include "net_wipx.h"
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extern cvar_t hostname;
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static sys_socket_t net_acceptsocket = INVALID_SOCKET; // socket for fielding new connections
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static sys_socket_t net_controlsocket;
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static struct sockaddr_ipx broadcastaddr;
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/* externs from net_wins.c: */
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extern bool winsock_initialized;
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extern WSADATA winsockdata;
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extern const char *__WSAE_StrError(int32_t);
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#define IPXSOCKETS 18
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static sys_socket_t ipxsocket[IPXSOCKETS];
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static int32_t sequence[IPXSOCKETS];
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//=============================================================================
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sys_socket_t WIPX_Init(void)
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{
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int32_t i, err;
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char *colon;
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char buff[MAXHOSTNAMELEN];
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struct qsockaddr addr;
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if(COM_CheckParm("-noipx"))
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return INVALID_SOCKET;
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if(winsock_initialized == 0)
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{
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err = WSAStartup(MAKEWORD(1, 1), &winsockdata);
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if(err != 0)
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{
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Con_SafePrintf("Winsock initialization failed (%s)\n",
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socketerror(err));
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return INVALID_SOCKET;
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}
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}
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winsock_initialized++;
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for(i = 0; i < IPXSOCKETS; i++)
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ipxsocket[i] = 0;
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// determine my name & address
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if(gethostname(buff, MAXHOSTNAMELEN) != 0)
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{
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err = SOCKETERRNO;
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Con_SafePrintf("WIPX_Init: gethostname failed (%s)\n",
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socketerror(err));
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}
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else
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{
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buff[MAXHOSTNAMELEN - 1] = 0;
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}
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if((net_controlsocket = WIPX_OpenSocket(0)) == INVALID_SOCKET)
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{
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Con_SafePrintf("WIPX_Init: Unable to open control socket, IPX disabled\n");
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if(--winsock_initialized == 0)
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WSACleanup();
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return INVALID_SOCKET;
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}
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broadcastaddr.sa_family = AF_IPX;
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memset(broadcastaddr.sa_netnum, 0, 4);
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memset(broadcastaddr.sa_nodenum, 0xff, 6);
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broadcastaddr.sa_socket = htons((uint16_t)net_hostport);
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WIPX_GetSocketAddr(net_controlsocket, &addr);
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strcpy(my_ipx_address, WIPX_AddrToString(&addr));
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colon = strrchr(my_ipx_address, ':');
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if(colon)
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*colon = 0;
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Con_SafePrintf("IPX Initialized\n");
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ipxAvailable = true;
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return net_controlsocket;
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}
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//=============================================================================
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void WIPX_Shutdown(void)
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{
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WIPX_Listen(false);
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WIPX_CloseSocket(net_controlsocket);
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if(--winsock_initialized == 0)
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WSACleanup();
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}
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//=============================================================================
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void WIPX_Listen(bool state)
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{
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// enable listening
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if(state)
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{
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if(net_acceptsocket != INVALID_SOCKET)
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return;
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if((net_acceptsocket = WIPX_OpenSocket(net_hostport)) == INVALID_SOCKET)
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Sys_Error("WIPX_Listen: Unable to open accept socket");
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return;
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}
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// disable listening
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if(net_acceptsocket == INVALID_SOCKET)
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return;
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WIPX_CloseSocket(net_acceptsocket);
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net_acceptsocket = INVALID_SOCKET;
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}
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//=============================================================================
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sys_socket_t WIPX_OpenSocket(int32_t port)
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{
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int32_t err;
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sys_socket_t handle, newsocket;
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struct sockaddr_ipx address;
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u_long _true = 1;
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for(handle = 0; handle < IPXSOCKETS; handle++)
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{
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if(ipxsocket[handle] == 0)
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break;
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}
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if(handle == IPXSOCKETS)
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{
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Con_SafePrintf("WIPX_OpenSocket: Out of free IPX handles.\n");
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return INVALID_SOCKET;
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}
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if((newsocket = socket(AF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == INVALID_SOCKET)
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{
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err = SOCKETERRNO;
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Con_SafePrintf("WIPX_OpenSocket: %s\n", socketerror(err));
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return INVALID_SOCKET;
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}
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if(ioctlsocket(newsocket, FIONBIO, &_true) == SOCKET_ERROR)
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goto error;
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if(setsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true))
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== SOCKET_ERROR)
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goto error;
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address.sa_family = AF_IPX;
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memset(address.sa_netnum, 0, 4);
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memset(address.sa_nodenum, 0, 6);;
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address.sa_socket = htons((uint16_t)port);
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if(bind(newsocket, (struct sockaddr *)&address, sizeof(address)) == 0)
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{
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ipxsocket[handle] = newsocket;
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sequence[handle] = 0;
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return handle;
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}
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if(ipxAvailable)
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{
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err = SOCKETERRNO;
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Sys_Error("IPX bind failed (%s)", socketerror(err));
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return INVALID_SOCKET; /* not reached */
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}
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/* else: we are still in init phase, no need to error */
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error:
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err = SOCKETERRNO;
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Con_SafePrintf("WIPX_OpenSocket: %s\n", socketerror(err));
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closesocket(newsocket);
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return INVALID_SOCKET;
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}
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//=============================================================================
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int32_t WIPX_CloseSocket(sys_socket_t handle)
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{
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sys_socket_t socketid = ipxsocket[handle];
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int32_t ret;
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ret = closesocket(socketid);
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ipxsocket[handle] = 0;
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return ret;
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}
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//=============================================================================
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int32_t WIPX_Connect(sys_socket_t handle, struct qsockaddr *addr)
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{
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(void)handle, (void)addr;
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return 0;
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}
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//=============================================================================
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sys_socket_t WIPX_CheckNewConnections(void)
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{
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u_long available;
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if(net_acceptsocket == INVALID_SOCKET)
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return INVALID_SOCKET;
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if(ioctlsocket(ipxsocket[net_acceptsocket], FIONREAD, &available) == SOCKET_ERROR)
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{
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int32_t err = SOCKETERRNO;
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Sys_Error("WIPX: ioctlsocket (FIONREAD) failed (%s)", socketerror(err));
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}
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if(available)
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return net_acceptsocket;
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return INVALID_SOCKET;
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}
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//=============================================================================
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static byte netpacketBuffer[NET_DATAGRAMSIZE + 4];
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int32_t WIPX_Read(sys_socket_t handle, byte *buf, int32_t len, struct qsockaddr *addr)
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{
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socklen_t addrlen = sizeof(struct qsockaddr);
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sys_socket_t socketid = ipxsocket[handle];
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int32_t ret;
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ret = recvfrom(socketid, (char *)netpacketBuffer, len + 4, 0, (struct sockaddr *)addr, &addrlen);
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if(ret == SOCKET_ERROR)
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{
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int32_t err = SOCKETERRNO;
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if(err == NET_EWOULDBLOCK || err == NET_ECONNREFUSED)
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return 0;
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Con_SafePrintf("WIPX_Read, recvfrom: %s\n", socketerror(err));
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}
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if(ret < 4)
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return 0;
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// remove sequence number, it's only needed for DOS IPX
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ret -= 4;
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memcpy(buf, netpacketBuffer + 4, ret);
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return ret;
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}
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//=============================================================================
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int32_t WIPX_Broadcast(sys_socket_t handle, byte *buf, int32_t len)
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{
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return WIPX_Write(handle, buf, len, (struct qsockaddr *)&broadcastaddr);
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}
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//=============================================================================
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int32_t WIPX_Write(sys_socket_t handle, byte *buf, int32_t len, struct qsockaddr *addr)
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{
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sys_socket_t socketid = ipxsocket[handle];
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int32_t ret;
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// build packet with sequence number
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memcpy(&netpacketBuffer[0], &sequence[handle], 4);
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sequence[handle]++;
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memcpy(&netpacketBuffer[4], buf, len);
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len += 4;
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ret = sendto(socketid, (char *)netpacketBuffer, len, 0, (struct sockaddr *)addr, sizeof(struct qsockaddr));
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if(ret == SOCKET_ERROR)
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{
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int32_t err = SOCKETERRNO;
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if(err == NET_EWOULDBLOCK)
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return 0;
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Con_SafePrintf("WIPX_Write, sendto: %s\n", socketerror(err));
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}
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return ret;
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}
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//=============================================================================
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const char *WIPX_AddrToString(struct qsockaddr *addr)
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{
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static char buf[28];
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sprintf(buf, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x:%" PRIu32,
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((struct sockaddr_ipx *)addr)->sa_netnum[0] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_netnum[1] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_netnum[2] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_netnum[3] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[0] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[1] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[2] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[3] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[4] & 0xff,
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((struct sockaddr_ipx *)addr)->sa_nodenum[5] & 0xff,
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ntohs(((struct sockaddr_ipx *)addr)->sa_socket)
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);
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return buf;
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}
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//=============================================================================
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int32_t WIPX_StringToAddr(const char *string, struct qsockaddr *addr)
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{
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int32_t val;
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char buf[3];
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buf[2] = 0;
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memset(addr, 0, sizeof(struct qsockaddr));
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addr->qsa_family = AF_IPX;
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#define DO(src,dest) do { \
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buf[0] = string[src]; \
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buf[1] = string[src + 1]; \
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if (sscanf (buf, "%x", &val) != 1) \
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return -1; \
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((struct sockaddr_ipx *)addr)->dest = val; \
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} while (0)
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DO(0, sa_netnum[0]);
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DO(2, sa_netnum[1]);
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DO(4, sa_netnum[2]);
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DO(6, sa_netnum[3]);
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DO(9, sa_nodenum[0]);
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DO(11, sa_nodenum[1]);
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DO(13, sa_nodenum[2]);
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DO(15, sa_nodenum[3]);
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DO(17, sa_nodenum[4]);
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DO(19, sa_nodenum[5]);
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#undef DO
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sscanf(&string[22], "%" PRIu32, &val);
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((struct sockaddr_ipx *)addr)->sa_socket = htons((uint16_t)val);
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return 0;
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}
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//=============================================================================
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int32_t WIPX_GetSocketAddr(sys_socket_t handle, struct qsockaddr *addr)
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{
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sys_socket_t socketid = ipxsocket[handle];
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socklen_t addrlen = sizeof(struct qsockaddr);
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memset(addr, 0, sizeof(struct qsockaddr));
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if(getsockname(socketid, (struct sockaddr *)addr, &addrlen) != 0)
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{
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int32_t err = SOCKETERRNO;
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/* FIXME: what action should be taken?... */
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Con_SafePrintf("WIPX, getsockname: %s\n", socketerror(err));
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}
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return 0;
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}
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//=============================================================================
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int32_t WIPX_GetNameFromAddr(struct qsockaddr *addr, char *name)
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{
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strcpy(name, WIPX_AddrToString(addr));
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return 0;
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}
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//=============================================================================
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int32_t WIPX_GetAddrFromName(const char *name, struct qsockaddr *addr)
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{
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int32_t n;
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char buf[32];
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n = strlen(name);
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if(n == 12)
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{
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sprintf(buf, "00000000:%s:%" PRIu32, name, net_hostport);
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return WIPX_StringToAddr(buf, addr);
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}
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if(n == 21)
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{
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sprintf(buf, "%s:%" PRIu32, name, net_hostport);
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return WIPX_StringToAddr(buf, addr);
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}
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if(n > 21 && n <= 27)
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return WIPX_StringToAddr(name, addr);
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return -1;
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}
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//=============================================================================
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int32_t WIPX_AddrCompare(struct qsockaddr *addr1, struct qsockaddr *addr2)
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{
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if(addr1->qsa_family != addr2->qsa_family)
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return -1;
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if(*((struct sockaddr_ipx *)addr1)->sa_netnum && *((struct sockaddr_ipx *)addr2)->sa_netnum)
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{
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if(memcmp(((struct sockaddr_ipx *)addr1)->sa_netnum, ((struct sockaddr_ipx *)addr2)->sa_netnum, 4) != 0)
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return -1;
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}
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if(memcmp(((struct sockaddr_ipx *)addr1)->sa_nodenum, ((struct sockaddr_ipx *)addr2)->sa_nodenum, 6) != 0)
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return -1;
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if(((struct sockaddr_ipx *)addr1)->sa_socket != ((struct sockaddr_ipx *)addr2)->sa_socket)
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return 1;
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return 0;
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}
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//=============================================================================
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int32_t WIPX_GetSocketPort(struct qsockaddr *addr)
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{
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return ntohs(((struct sockaddr_ipx *)addr)->sa_socket);
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}
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int32_t WIPX_SetSocketPort(struct qsockaddr *addr, int32_t port)
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{
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((struct sockaddr_ipx *)addr)->sa_socket = htons((uint16_t)port);
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return 0;
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}
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//=============================================================================
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