ref: 0d4b3504cc557b5ded1180e2fd00cd210c1024d7
dir: /u/net_wipx.c/
/*
Copyright (C) 1996-1997 Id Software, Inc.
This program 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; either version 2
of the License, or (at your option) any later version.
This program 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.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// net_wipx.c
#include "quakedef.h"
#include "winquake.h"
#include <wsipx.h>
#include "net_wipx.h"
extern cvar_t hostname;
#define MAXHOSTNAMELEN 256
static int net_acceptsocket = -1; // socket for fielding new connections
static int net_controlsocket;
static struct qsockaddr broadcastaddr;
extern qboolean winsock_initialized;
extern WSADATA winsockdata;
#define IPXSOCKETS 18
static int ipxsocket[IPXSOCKETS];
static int sequence[IPXSOCKETS];
//=============================================================================
int WIPX_Init (void)
{
int i;
char buff[MAXHOSTNAMELEN];
struct qsockaddr addr;
char *p;
int r;
WORD wVersionRequested;
if (COM_CheckParm ("-noipx"))
return -1;
// make sure LoadLibrary has happened successfully
if (!winsock_lib_initialized)
return -1;
if (winsock_initialized == 0)
{
wVersionRequested = MAKEWORD(1, 1);
r = pWSAStartup (MAKEWORD(1, 1), &winsockdata);
if (r)
{
Con_Printf ("Winsock initialization failed.\n");
return -1;
}
}
winsock_initialized++;
for (i = 0; i < IPXSOCKETS; i++)
ipxsocket[i] = 0;
// determine my name & address
if (pgethostname(buff, MAXHOSTNAMELEN) == 0)
{
// if the quake hostname isn't set, set it to the machine name
if (Q_strcmp(hostname.string, "UNNAMED") == 0)
{
// see if it's a text IP address (well, close enough)
for (p = buff; *p; p++)
if ((*p < '0' || *p > '9') && *p != '.')
break;
// if it is a real name, strip off the domain; we only want the host
if (*p)
{
for (i = 0; i < 15; i++)
if (buff[i] == '.')
break;
buff[i] = 0;
}
Cvar_Set ("hostname", buff);
}
}
if ((net_controlsocket = WIPX_OpenSocket (0)) == -1)
{
Con_Printf("WIPX_Init: Unable to open control socket\n");
if (--winsock_initialized == 0)
pWSACleanup ();
return -1;
}
((struct sockaddr_ipx *)&broadcastaddr)->sa_family = AF_IPX;
memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_netnum, 0, 4);
memset(((struct sockaddr_ipx *)&broadcastaddr)->sa_nodenum, 0xff, 6);
((struct sockaddr_ipx *)&broadcastaddr)->sa_socket = htons((unsigned short)net_hostport);
WIPX_GetSocketAddr (net_controlsocket, &addr);
Q_strcpy(my_ipx_address, WIPX_AddrToString (&addr));
p = Q_strrchr (my_ipx_address, ':');
if (p)
*p = 0;
Con_Printf("Winsock IPX Initialized\n");
ipxAvailable = true;
return net_controlsocket;
}
//=============================================================================
void WIPX_Shutdown (void)
{
WIPX_Listen (false);
WIPX_CloseSocket (net_controlsocket);
if (--winsock_initialized == 0)
pWSACleanup ();
}
//=============================================================================
void WIPX_Listen (qboolean state)
{
// enable listening
if (state)
{
if (net_acceptsocket != -1)
return;
if ((net_acceptsocket = WIPX_OpenSocket (net_hostport)) == -1)
Sys_Error ("WIPX_Listen: Unable to open accept socket\n");
return;
}
// disable listening
if (net_acceptsocket == -1)
return;
WIPX_CloseSocket (net_acceptsocket);
net_acceptsocket = -1;
}
//=============================================================================
int WIPX_OpenSocket (int port)
{
int handle;
int newsocket;
struct sockaddr_ipx address;
u_long _true = 1;
for (handle = 0; handle < IPXSOCKETS; handle++)
if (ipxsocket[handle] == 0)
break;
if (handle == IPXSOCKETS)
return -1;
if ((newsocket = psocket (AF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == INVALID_SOCKET)
return -1;
if (pioctlsocket (newsocket, FIONBIO, &_true) == -1)
goto ErrorReturn;
if (psetsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true)) < 0)
goto ErrorReturn;
address.sa_family = AF_IPX;
memset(address.sa_netnum, 0, 4);
memset(address.sa_nodenum, 0, 6);;
address.sa_socket = htons((unsigned short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == 0)
{
ipxsocket[handle] = newsocket;
sequence[handle] = 0;
return handle;
}
Sys_Error ("Winsock IPX bind failed\n");
ErrorReturn:
pclosesocket (newsocket);
return -1;
}
//=============================================================================
int WIPX_CloseSocket (int handle)
{
int socket = ipxsocket[handle];
int ret;
ret = pclosesocket (socket);
ipxsocket[handle] = 0;
return ret;
}
//=============================================================================
int WIPX_Connect (int handle, struct qsockaddr *addr)
{
return 0;
}
//=============================================================================
int WIPX_CheckNewConnections (void)
{
unsigned long available;
if (net_acceptsocket == -1)
return -1;
if (pioctlsocket (ipxsocket[net_acceptsocket], FIONREAD, &available) == -1)
Sys_Error ("WIPX: ioctlsocket (FIONREAD) failed\n");
if (available)
return net_acceptsocket;
return -1;
}
//=============================================================================
static byte packetBuffer[NET_DATAGRAMSIZE + 4];
int WIPX_Read (int handle, byte *buf, int len, struct qsockaddr *addr)
{
int addrlen = sizeof (struct qsockaddr);
int socket = ipxsocket[handle];
int ret;
ret = precvfrom (socket, packetBuffer, len+4, 0, (struct sockaddr *)addr, &addrlen);
if (ret == -1)
{
int errno = pWSAGetLastError();
if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
return 0;
}
if (ret < 4)
return 0;
// remove sequence number, it's only needed for DOS IPX
ret -= 4;
memcpy(buf, packetBuffer+4, ret);
return ret;
}
//=============================================================================
int WIPX_Broadcast (int handle, byte *buf, int len)
{
return WIPX_Write (handle, buf, len, &broadcastaddr);
}
//=============================================================================
int WIPX_Write (int handle, byte *buf, int len, struct qsockaddr *addr)
{
int socket = ipxsocket[handle];
int ret;
// build packet with sequence number
*(int *)(&packetBuffer[0]) = sequence[handle];
sequence[handle]++;
memcpy(&packetBuffer[4], buf, len);
len += 4;
ret = psendto (socket, packetBuffer, len, 0, (struct sockaddr *)addr, sizeof(struct qsockaddr));
if (ret == -1)
if (pWSAGetLastError() == WSAEWOULDBLOCK)
return 0;
return ret;
}
//=============================================================================
char *WIPX_AddrToString (struct qsockaddr *addr)
{
static char buf[28];
sprintf(buf, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x:%u",
((struct sockaddr_ipx *)addr)->sa_netnum[0] & 0xff,
((struct sockaddr_ipx *)addr)->sa_netnum[1] & 0xff,
((struct sockaddr_ipx *)addr)->sa_netnum[2] & 0xff,
((struct sockaddr_ipx *)addr)->sa_netnum[3] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[0] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[1] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[2] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[3] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[4] & 0xff,
((struct sockaddr_ipx *)addr)->sa_nodenum[5] & 0xff,
ntohs(((struct sockaddr_ipx *)addr)->sa_socket)
);
return buf;
}
//=============================================================================
int WIPX_StringToAddr (char *string, struct qsockaddr *addr)
{
int val;
char buf[3];
buf[2] = 0;
Q_memset(addr, 0, sizeof(struct qsockaddr));
addr->sa_family = AF_IPX;
#define DO(src,dest) \
buf[0] = string[src]; \
buf[1] = string[src + 1]; \
if (sscanf (buf, "%x", &val) != 1) \
return -1; \
((struct sockaddr_ipx *)addr)->dest = val
DO(0, sa_netnum[0]);
DO(2, sa_netnum[1]);
DO(4, sa_netnum[2]);
DO(6, sa_netnum[3]);
DO(9, sa_nodenum[0]);
DO(11, sa_nodenum[1]);
DO(13, sa_nodenum[2]);
DO(15, sa_nodenum[3]);
DO(17, sa_nodenum[4]);
DO(19, sa_nodenum[5]);
#undef DO
sscanf (&string[22], "%u", &val);
((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)val);
return 0;
}
//=============================================================================
int WIPX_GetSocketAddr (int handle, struct qsockaddr *addr)
{
int socket = ipxsocket[handle];
int addrlen = sizeof(struct qsockaddr);
unsigned int a;
Q_memset(addr, 0, sizeof(struct qsockaddr));
if(pgetsockname(socket, (struct sockaddr *)addr, &addrlen) != 0)
{
int errno = pWSAGetLastError();
}
return 0;
}
//=============================================================================
int WIPX_GetNameFromAddr (struct qsockaddr *addr, char *name)
{
Q_strcpy(name, WIPX_AddrToString(addr));
return 0;
}
//=============================================================================
int WIPX_GetAddrFromName(char *name, struct qsockaddr *addr)
{
int n;
char buf[32];
n = Q_strlen(name);
if (n == 12)
{
sprintf(buf, "00000000:%s:%u", name, net_hostport);
return WIPX_StringToAddr (buf, addr);
}
if (n == 21)
{
sprintf(buf, "%s:%u", name, net_hostport);
return WIPX_StringToAddr (buf, addr);
}
if (n > 21 && n <= 27)
return WIPX_StringToAddr (name, addr);
return -1;
}
//=============================================================================
int WIPX_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *addr2)
{
if (addr1->sa_family != addr2->sa_family)
return -1;
if (*((struct sockaddr_ipx *)addr1)->sa_netnum && *((struct sockaddr_ipx *)addr2)->sa_netnum)
if (memcmp(((struct sockaddr_ipx *)addr1)->sa_netnum, ((struct sockaddr_ipx *)addr2)->sa_netnum, 4) != 0)
return -1;
if (memcmp(((struct sockaddr_ipx *)addr1)->sa_nodenum, ((struct sockaddr_ipx *)addr2)->sa_nodenum, 6) != 0)
return -1;
if (((struct sockaddr_ipx *)addr1)->sa_socket != ((struct sockaddr_ipx *)addr2)->sa_socket)
return 1;
return 0;
}
//=============================================================================
int WIPX_GetSocketPort (struct qsockaddr *addr)
{
return ntohs(((struct sockaddr_ipx *)addr)->sa_socket);
}
int WIPX_SetSocketPort (struct qsockaddr *addr, int port)
{
((struct sockaddr_ipx *)addr)->sa_socket = htons((unsigned short)port);
return 0;
}
//=============================================================================