432 lines
11 KiB
C
432 lines
11 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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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 "quakedef.h"
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#include "winquake.h"
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#include <wsipx.h>
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#include "net_wipx.h"
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extern cvar_t hostname;
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#define MAXHOSTNAMELEN 256
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static int net_acceptsocket = -1; // socket for fielding new connections
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static int net_controlsocket;
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static struct qsockaddr broadcastaddr;
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extern qboolean winsock_initialized;
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extern WSADATA winsockdata;
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#define IPXSOCKETS 18
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static int ipxsocket[IPXSOCKETS];
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static int sequence[IPXSOCKETS];
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//=============================================================================
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int WIPX_Init (void)
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{
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int i;
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char buff[MAXHOSTNAMELEN];
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struct qsockaddr addr;
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char *p;
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int r;
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WORD wVersionRequested;
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if (COM_CheckParm ("-noipx"))
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return -1;
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// make sure LoadLibrary has happened successfully
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if (!winsock_lib_initialized)
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return -1;
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if (winsock_initialized == 0)
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{
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wVersionRequested = MAKEWORD(1, 1);
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r = pWSAStartup (MAKEWORD(1, 1), &winsockdata);
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if (r)
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{
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Con_Printf ("Winsock initialization failed.\n");
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return -1;
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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 (pgethostname(buff, MAXHOSTNAMELEN) == 0)
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{
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// if the quake hostname isn't set, set it to the machine name
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if (Q_strcmp(hostname.string, "UNNAMED") == 0)
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{
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// see if it's a text IP address (well, close enough)
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for (p = buff; *p; p++)
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if ((*p < '0' || *p > '9') && *p != '.')
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break;
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// if it is a real name, strip off the domain; we only want the host
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if (*p)
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{
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for (i = 0; i < 15; i++)
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if (buff[i] == '.')
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break;
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buff[i] = 0;
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}
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Cvar_Set ("hostname", buff);
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}
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}
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if ((net_controlsocket = WIPX_OpenSocket (0)) == -1)
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{
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Con_Printf("WIPX_Init: Unable to open control socket\n");
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if (--winsock_initialized == 0)
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pWSACleanup ();
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return -1;
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}
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((struct sockaddr_ipx *)&broadcastaddr)->sa_family = AF_IPX;
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memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_netnum, 0, 4);
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memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_nodenum, 0xff, 6);
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((struct sockaddr_ipx *)&broadcastaddr)->sa_socket = htons((unsigned short)net_hostport);
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WIPX_GetSocketAddr (net_controlsocket, &addr);
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Q_strcpy(my_ipx_address, WIPX_AddrToString (&addr));
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p = Q_strrchr (my_ipx_address, ':');
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if (p)
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*p = 0;
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Con_Printf("Winsock 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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pWSACleanup ();
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}
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//=============================================================================
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void WIPX_Listen (qboolean 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 != -1)
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return;
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if ((net_acceptsocket = WIPX_OpenSocket (net_hostport)) == -1)
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Sys_Error ("WIPX_Listen: Unable to open accept socket\n");
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return;
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}
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// disable listening
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if (net_acceptsocket == -1)
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return;
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WIPX_CloseSocket (net_acceptsocket);
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net_acceptsocket = -1;
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}
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//=============================================================================
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int WIPX_OpenSocket (int port)
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{
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int handle;
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int 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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if (ipxsocket[handle] == 0)
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break;
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if (handle == IPXSOCKETS)
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return -1;
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if ((newsocket = psocket (AF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == INVALID_SOCKET)
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return -1;
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if (pioctlsocket (newsocket, FIONBIO, &_true) == -1)
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goto ErrorReturn;
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if (psetsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true)) < 0)
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goto ErrorReturn;
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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((unsigned short)port);
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if( bind (newsocket, (void *)&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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Sys_Error ("Winsock IPX bind failed\n");
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ErrorReturn:
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pclosesocket (newsocket);
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return -1;
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}
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//=============================================================================
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int WIPX_CloseSocket (int handle)
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{
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int socket = ipxsocket[handle];
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int ret;
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ret = pclosesocket (socket);
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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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int WIPX_Connect (int handle, struct qsockaddr *addr)
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{
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return 0;
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}
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//=============================================================================
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int WIPX_CheckNewConnections (void)
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{
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unsigned long available;
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if (net_acceptsocket == -1)
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return -1;
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if (pioctlsocket (ipxsocket[net_acceptsocket], FIONREAD, &available) == -1)
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Sys_Error ("WIPX: ioctlsocket (FIONREAD) failed\n");
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if (available)
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return net_acceptsocket;
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return -1;
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}
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//=============================================================================
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static byte packetBuffer[NET_DATAGRAMSIZE + 4];
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int WIPX_Read (int handle, byte *buf, int len, struct qsockaddr *addr)
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{
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int addrlen = sizeof (struct qsockaddr);
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int socket = ipxsocket[handle];
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int ret;
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ret = precvfrom (socket, packetBuffer, len+4, 0, (struct sockaddr *)addr, &addrlen);
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if (ret == -1)
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{
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int errno = pWSAGetLastError();
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if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
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return 0;
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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, packetBuffer+4, ret);
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return ret;
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}
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//=============================================================================
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int WIPX_Broadcast (int handle, byte *buf, int len)
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{
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return WIPX_Write (handle, buf, len, &broadcastaddr);
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}
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//=============================================================================
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int WIPX_Write (int handle, byte *buf, int len, struct qsockaddr *addr)
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{
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int socket = ipxsocket[handle];
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int ret;
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// build packet with sequence number
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*(int *)(&packetBuffer[0]) = sequence[handle];
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sequence[handle]++;
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memcpy(&packetBuffer[4], buf, len);
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len += 4;
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ret = psendto (socket, packetBuffer, len, 0, (struct sockaddr *)addr, sizeof(struct qsockaddr));
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if (ret == -1)
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if (pWSAGetLastError() == WSAEWOULDBLOCK)
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return 0;
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return ret;
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}
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//=============================================================================
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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:%u",
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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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int WIPX_StringToAddr (char *string, struct qsockaddr *addr)
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{
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int val;
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char buf[3];
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buf[2] = 0;
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Q_memset(addr, 0, sizeof(struct qsockaddr));
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addr->sa_family = AF_IPX;
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#define DO(src,dest) \
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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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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], "%u", &val);
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((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)val);
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return 0;
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}
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//=============================================================================
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int WIPX_GetSocketAddr (int handle, struct qsockaddr *addr)
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{
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int socket = ipxsocket[handle];
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int addrlen = sizeof(struct qsockaddr);
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unsigned int a;
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Q_memset(addr, 0, sizeof(struct qsockaddr));
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if(pgetsockname(socket, (struct sockaddr *)addr, &addrlen) != 0)
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{
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int errno = pWSAGetLastError();
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}
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return 0;
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}
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//=============================================================================
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int WIPX_GetNameFromAddr (struct qsockaddr *addr, char *name)
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{
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Q_strcpy(name, WIPX_AddrToString(addr));
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return 0;
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}
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//=============================================================================
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int WIPX_GetAddrFromName(char *name, struct qsockaddr *addr)
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{
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int n;
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char buf[32];
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n = Q_strlen(name);
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if (n == 12)
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{
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sprintf(buf, "00000000:%s:%u", 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:%u", 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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int WIPX_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *addr2)
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{
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if (addr1->sa_family != addr2->sa_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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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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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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int 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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int WIPX_SetSocketPort (struct qsockaddr *addr, int port)
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{
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((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)port);
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return 0;
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}
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//=============================================================================
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