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fteqw/engine/common/net_wins.c
Spoike a67a6355d2 Initial checkin 
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4 fc73d0e0-1445-4013-8a0c-d673dee63da5
2004-08-21 01:25:48 +00:00

1260 lines
27 KiB
C
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/*
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_wins.c
struct sockaddr;
#include "quakedef.h"
#ifdef _WIN32
#ifdef _MSC_VER
#define USEIPX
#endif
#include "winquake.h"
#ifdef USEIPX
#include "wsipx.h"
#endif
#ifdef IPPROTO_IPV6
#include "ws2tcpip.h"
#endif
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EMSGSIZE WSAEMSGSIZE
#define ECONNRESET WSAECONNRESET
#define ECONNABORTED WSAECONNABORTED
#define ECONNREFUSED WSAECONNREFUSED
#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <arpa/inet.h>
#include <errno.h>
#include <unistd.h>
#ifdef sun
#include <sys/filio.h>
#endif
#ifdef NeXT
#include <libc.h>
#endif
#define closesocket close
#define ioctlsocket ioctl
#endif
#ifdef _WIN32
#define qerrno WSAGetLastError() //windows errors are retrieved via WSAGetLastError
#else
#define qerrno errno //linux and single threaded oses are happy with errno as a global
#endif
netadr_t net_local_ipadr;
netadr_t net_local_ip6adr;
netadr_t net_from;
sizebuf_t net_message;
//#define MAX_UDP_PACKET (MAX_MSGLEN*2) // one more than msg + header
#define MAX_UDP_PACKET 8192 // one more than msg + header
qbyte net_message_buffer[MAX_UDP_PACKET];
#ifdef _WIN32
WSADATA winsockdata;
#endif
#ifdef IPPROTO_IPV6
#ifdef _WIN32
int (WINAPI *pgetaddrinfo) (
const char* nodename,
const char* servname,
const struct addrinfo* hints,
struct addrinfo** res
);
void (WSAAPI *pfreeaddrinfo) (struct addrinfo*);
#else
#define pgetaddrinfo getaddrinfo
#define pfreeaddrinfo freeaddrinfo
/*int (*pgetaddrinfo)
(
const char* nodename,
const char* servname,
const struct addrinfo* hints,
struct addrinfo** res
);
void (*pfreeaddrinfo) (struct addrinfo*);
*/
#endif
#endif
extern cvar_t sv_public;
#define MAX_LOOPBACK 4
typedef struct
{
qbyte data[MAX_UDP_PACKET];
int datalen;
} loopmsg_t;
typedef struct
{
loopmsg_t msgs[MAX_LOOPBACK];
int get, send;
} loopback_t;
loopback_t loopbacks[2];
//=============================================================================
void NetadrToSockadr (netadr_t *a, struct sockaddr_qstorage *s)
{
switch(a->type)
{
case NA_BROADCAST_IP:
memset (s, 0, sizeof(struct sockaddr_in));
((struct sockaddr_in*)s)->sin_family = AF_INET;
*(int *)&((struct sockaddr_in*)s)->sin_addr = INADDR_BROADCAST;
((struct sockaddr_in*)s)->sin_port = a->port;
break;
case NA_IP:
memset (s, 0, sizeof(struct sockaddr_in));
((struct sockaddr_in*)s)->sin_family = AF_INET;
*(int *)&((struct sockaddr_in*)s)->sin_addr = *(int *)&a->ip;
((struct sockaddr_in*)s)->sin_port = a->port;
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
memset (s, 0, sizeof(struct sockaddr_in));
((struct sockaddr_in6*)s)->sin6_family = AF_INET6;
memset((int *)&((struct sockaddr_in6*)s)->sin6_addr, 0, sizeof(*(int *)&((struct sockaddr_in6*)s)->sin6_addr));
((struct sockaddr_in6*)s)->sin6_addr.s6_addr[0] = 0xff;
((struct sockaddr_in6*)s)->sin6_addr.s6_addr[1] = 0x02;
((struct sockaddr_in6*)s)->sin6_addr.s6_addr[15] = 0x01;
((struct sockaddr_in6*)s)->sin6_port = a->port;
break;
case NA_IPV6:
memset (s, 0, sizeof(struct sockaddr_in));
((struct sockaddr_in6*)s)->sin6_family = AF_INET6;
memcpy(&((struct sockaddr_in6*)s)->sin6_addr, &in6addr_any, sizeof(in6addr_any));
((struct sockaddr_in6*)s)->sin6_port = a->port;
break;
#endif
#ifdef USEIPX
case NA_IPX:
((struct sockaddr_ipx *)s)->sa_family = AF_IPX;
memcpy(((struct sockaddr_ipx *)s)->sa_netnum, &a->ipx[0], 4);
memcpy(((struct sockaddr_ipx *)s)->sa_nodenum, &a->ipx[4], 6);
((struct sockaddr_ipx *)s)->sa_socket = a->port;
break;
case NA_BROADCAST_IPX:
memset (s, 0, sizeof(struct sockaddr_ipx));
((struct sockaddr_ipx*)s)->sa_family = AF_IPX;
memset(&((struct sockaddr_ipx*)s)->sa_netnum, 0, 4);
memset(&((struct sockaddr_ipx*)s)->sa_nodenum, 0xff, 6);
((struct sockaddr_ipx*)s)->sa_socket = a->port;
break;
#endif
default:
Sys_Error("Bad type - needs fixing");
}
}
void SockadrToNetadr (struct sockaddr_qstorage *s, netadr_t *a)
{
switch (s->sa_family)
{
case AF_INET:
a->type = NA_IP;
*(int *)&a->ip = ((struct sockaddr_in *)s)->sin_addr.s_addr;
a->port = ((struct sockaddr_in *)s)->sin_port;
break;
#ifdef IPPROTO_IPV6
case AF_INET6:
a->type = NA_IPV6;
memcpy((struct sockaddr_in6 *)&a->ip6, &((struct sockaddr_in6 *)s)->sin6_addr, sizeof(struct sockaddr_in6));
a->port = ((struct sockaddr_in6 *)s)->sin6_port;
break;
#endif
#ifdef USEIPX
case AF_IPX:
a->type = NA_IPX;
*(int *)a->ip = 0xffffffff;
memcpy(&a->ipx[0], ((struct sockaddr_ipx *)s)->sa_netnum, 4);
memcpy(&a->ipx[4], ((struct sockaddr_ipx *)s)->sa_nodenum, 6);
a->port = ((struct sockaddr_ipx *)s)->sa_socket;
break;
#endif
case AF_UNSPEC:
memset(a, 0, sizeof(*a));
a->type = NA_INVALID;
break;
default:
Sys_Error("SockadrToNetadr: bad socket family");
}
}
qboolean NET_CompareAdr (netadr_t a, netadr_t b)
{
if (a.type != b.type)
return false;
if (a.type == NA_LOOPBACK)
return true;
if (a.type == NA_IP || a.type == NA_BROADCAST_IP)
{
if (a.ip[0] == b.ip[0] && a.ip[1] == b.ip[1] && a.ip[2] == b.ip[2] && a.ip[3] == b.ip[3] && a.port == b.port)
return true;
return false;
}
#ifdef IPPROTO_IPV6
if (a.type == NA_IPV6 || a.type == NA_BROADCAST_IP6)
{
if ((memcmp(a.ip6, b.ip6, 16) == 0) && a.port == b.port)
return true;
return false;
}
#endif
if (a.type == NA_IPX || a.type == NA_BROADCAST_IPX)
{
if ((memcmp(a.ipx, b.ipx, 10) == 0) && a.port == b.port)
return true;
return false;
}
Sys_Error("NET_CompareAdr: Bad address type");
return false;
}
/*
===================
NET_CompareBaseAdr
Compares without the port
===================
*/
qboolean NET_CompareBaseAdr (netadr_t a, netadr_t b)
{
if (a.type != b.type)
return false;
if (a.type == NA_LOOPBACK)
return true;
if (a.type == NA_IP)
{
if (a.ip[0] == b.ip[0] && a.ip[1] == b.ip[1] && a.ip[2] == b.ip[2] && a.ip[3] == b.ip[3])
return true;
return false;
}
#ifdef IPPROTO_IPV6
if (a.type == NA_IPV6 || a.type == NA_BROADCAST_IP6)
{
if ((memcmp(a.ip6, b.ip6, 16) == 0))
return true;
return false;
}
#endif
if (a.type == NA_IPX)
{
if ((memcmp(a.ipx, b.ipx, 10) == 0))
return true;
return false;
}
Sys_Error("NET_CompareBaseAdr: Bad address type");
return false;
}
char *NET_AdrToString (netadr_t a)
{
static char s[64];
switch(a.type)
{
case NA_BROADCAST_IP:
case NA_IP:
sprintf (s, "%i.%i.%i.%i:%i", a.ip[0], a.ip[1], a.ip[2], a.ip[3], ntohs(a.port));
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
sprintf (s, "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%i", a.ip6[0], a.ip6[1], a.ip6[2], a.ip6[3], a.ip6[4], a.ip6[5], a.ip6[6], a.ip6[7], a.ip6[8], a.ip6[9], a.ip6[10], a.ip6[11], a.ip6[12], a.ip6[13], a.ip6[14], a.ip6[15], ntohs(a.port));
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
sprintf (s, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x:%i", a.ipx[0], a.ipx[1], a.ipx[2], a.ipx[3], a.ipx[4], a.ipx[5], a.ipx[6], a.ipx[7], a.ipx[8], a.ipx[9], ntohs(a.port));
break;
#endif
case NA_LOOPBACK:
sprintf (s, "LocalHost");
break;
default:
sprintf (s, "invalid netadr_t type");
// Sys_Error("NET_AdrToString: Bad netadr_t type");
}
return s;
}
char *NET_BaseAdrToString (netadr_t a)
{
static char s[64];
switch(a.type)
{
case NA_BROADCAST_IP:
case NA_IP:
sprintf (s, "%i.%i.%i.%i", a.ip[0], a.ip[1], a.ip[2], a.ip[3]);
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
sprintf (s, "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x", a.ip6[0], a.ip6[1], a.ip6[2], a.ip6[3], a.ip6[4], a.ip6[5], a.ip6[6], a.ip6[7], a.ip6[8], a.ip6[9], a.ip6[10], a.ip6[11], a.ip6[12], a.ip6[13], a.ip6[14], a.ip6[15]);
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
sprintf (s, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x", a.ipx[0], a.ipx[1], a.ipx[2], a.ipx[3], a.ipx[4], a.ipx[5], a.ipx[6], a.ipx[7], a.ipx[8], a.ipx[9]);
break;
#endif
case NA_LOOPBACK:
sprintf (s, "LocalHost");
break;
default:
Sys_Error("NET_BaseAdrToString: Bad netadr_t type");
}
return s;
}
/*
=============
NET_StringToAdr
idnewt
idnewt:28000
192.246.40.70
192.246.40.70:28000
any form of ipv6, including port number.
=============
*/
#define DO(src,dest) \
copy[0] = s[src]; \
copy[1] = s[src + 1]; \
sscanf (copy, "%x", &val); \
((struct sockaddr_ipx *)sadr)->dest = val
qboolean NET_StringToSockaddr (char *s, struct sockaddr_qstorage *sadr)
{
struct hostent *h;
char *colon;
char copy[128];
memset (sadr, 0, sizeof(*sadr));
#ifdef USEIPX
if ((strlen(s) >= 23) && (s[8] == ':') && (s[21] == ':')) // check for an IPX address
{
unsigned int val;
((struct sockaddr_ipx *)sadr)->sa_family = AF_IPX;
copy[2] = 0;
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]);
sscanf (&s[22], "%u", &val);
((struct sockaddr_ipx *)sadr)->sa_socket = htons((unsigned short)val);
}
else
#endif
#ifdef IPPROTO_IPV6
if (pgetaddrinfo)
{
struct addrinfo *addrinfo, *pos;
struct addrinfo udp6hint;
int error;
char *port;
memset(&udp6hint, 0, sizeof(udp6hint));
udp6hint.ai_family = 0;//Any... AF_INET6;
udp6hint.ai_socktype = SOCK_DGRAM;
udp6hint.ai_protocol = IPPROTO_UDP;
port = s + strlen(s);
while(port >= s)
{
if (*port == ':')
break;
port--;
}
if (port == s)
port = NULL;
if (port)
{
*port = '\0';
error = pgetaddrinfo(s, port+1, &udp6hint, &addrinfo);
*port = ':';
}
else
error = EAI_NONAME;
if (error) //failed, try string with no port.
error = pgetaddrinfo(s, NULL, &udp6hint, &addrinfo); //remember, this func will return any address family that could be using the udp protocol... (ip4 or ip6)
if (error)
{
return false;
}
sadr->sa_family = 0;
for (pos = addrinfo; pos; pos = pos->ai_next)
{
switch(pos->ai_family)
{
case AF_INET6:
if (((struct sockaddr_in *)sadr)->sin_family == AF_INET6)
break; //first one should be best...
case AF_INET:
memcpy(sadr, addrinfo->ai_addr, addrinfo->ai_addrlen);
if (pos->ai_family == AF_INET)
goto dblbreak; //don't try finding any more, this is quake, they probably prefer ip4...
break;
}
}
dblbreak:
pfreeaddrinfo (addrinfo);
if (!sadr->sa_family)
return false;
}
else
#endif
{
((struct sockaddr_in *)sadr)->sin_family = AF_INET;
((struct sockaddr_in *)sadr)->sin_port = 0;
strcpy (copy, s);
// strip off a trailing :port if present
for (colon = copy ; *colon ; colon++)
if (*colon == ':')
{
*colon = 0;
((struct sockaddr_in *)sadr)->sin_port = htons((short)atoi(colon+1));
}
if (copy[0] >= '0' && copy[0] <= '9') //this is the wrong way to test. a server name may start with a number.
{
*(int *)&((struct sockaddr_in *)sadr)->sin_addr = inet_addr(copy);
}
else
{
if (! (h = gethostbyname(copy)) )
return 0;
if (h->h_addrtype != AF_INET)
return 0;
*(int *)&((struct sockaddr_in *)sadr)->sin_addr = *(int *)h->h_addr_list[0];
}
}
return true;
}
#undef DO
qboolean NET_StringToAdr (char *s, netadr_t *a)
{
struct sockaddr_qstorage sadr;
if (!strcmp (s, "internalserver"))
{
memset (a, 0, sizeof(*a));
a->type = NA_LOOPBACK;
return true;
}
if (!NET_StringToSockaddr (s, &sadr))
return false;
SockadrToNetadr (&sadr, a);
return true;
}
// Returns true if we can't bind the address locally--in other words,
// the IP is NOT one of our interfaces.
qboolean NET_IsClientLegal(netadr_t *adr)
{
#if 0
struct sockaddr_in sadr;
int newsocket;
if (adr->ip[0] == 127)
return false; // no local connections period
NetadrToSockadr (adr, &sadr);
if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
Sys_Error ("NET_IsClientLegal: socket:", strerror(qerrno));
sadr.sin_port = 0;
if( bind (newsocket, (void *)&sadr, sizeof(sadr)) == -1)
{
// It is not a local address
close(newsocket);
return true;
}
close(newsocket);
return false;
#else
return true;
#endif
}
qboolean NET_IsLoopBackAddress (netadr_t adr)
{
// return (!strcmp(cls.servername, NET_AdrToString(net_local_adr)) || !strcmp(cls.servername, "local");
return adr.type == NA_LOOPBACK;
}
/////////////////////////////////////////////
//loopback stuff
qboolean NET_GetLoopPacket (netsrc_t sock, netadr_t *from, sizebuf_t *message)
{
int i;
loopback_t *loop;
loop = &loopbacks[sock];
if (loop->send - loop->get > MAX_LOOPBACK)
loop->get = loop->send - MAX_LOOPBACK;
if (loop->get >= loop->send)
return false;
i = loop->get & (MAX_LOOPBACK-1);
loop->get++;
if (message->maxsize < loop->msgs[i].datalen)
Sys_Error("NET_SendLoopPacket: Loopback buffer was too big");
memcpy (message->data, loop->msgs[i].data, loop->msgs[i].datalen);
message->cursize = loop->msgs[i].datalen;
memset (from, 0, sizeof(*from));
from->type = NA_LOOPBACK;
return true;
}
void NET_SendLoopPacket (netsrc_t sock, int length, void *data, netadr_t to)
{
int i;
loopback_t *loop;
loop = &loopbacks[sock^1];
i = loop->send & (MAX_LOOPBACK-1);
loop->send++;
if (length > sizeof(loop->msgs[i].data))
Sys_Error("NET_SendLoopPacket: Loopback buffer is too small");
memcpy (loop->msgs[i].data, data, length);
loop->msgs[i].datalen = length;
}
//=============================================================================
qboolean NET_GetPacket (netsrc_t netsrc)
{
int ret;
struct sockaddr_qstorage from;
int fromlen;
int i;
int socket;
if (NET_GetLoopPacket(netsrc, &net_from, &net_message))
return true;
for (i = 0; i < 3; i++)
{
if (netsrc == NS_SERVER)
{
#ifdef CLIENTONLY
Sys_Error("NET_GetPacket: Bad netsrc");
socket = 0;
#else
if (i == 0)
socket = svs.socketip;
else if (i == 1)
socket = svs.socketip6;
else
socket = svs.socketipx;
#endif
}
else
{
#ifdef SERVERONLY
Sys_Error("NET_GetPacket: Bad netsrc");
socket = 0;
#else
if (i == 0)
socket = cls.socketip;
else if (i == 1)
socket = cls.socketip6;
else
socket = cls.socketipx;
#endif
}
if (!socket)
continue;
fromlen = sizeof(from);
ret = recvfrom (socket, (char *)net_message_buffer, sizeof(net_message_buffer), 0, (struct sockaddr*)&from, &fromlen);
if (ret == -1)
{
if (qerrno == EWOULDBLOCK)
continue;
if (qerrno == EMSGSIZE)
{
SockadrToNetadr (&from, &net_from);
Con_TPrintf (TL_OVERSIZEPACKETFROM,
NET_AdrToString (net_from));
continue;
}
if (qerrno == ECONNABORTED || qerrno == ECONNRESET)
{
Con_TPrintf (TL_CONNECTIONLOSTORABORTED); //server died/connection lost.
#ifndef SERVERONLY
if (cls.state != ca_disconnected && netsrc == NS_CLIENT)
{
Cbuf_AddText("disconnect\nreconnect\n", RESTRICT_LOCAL); //retry connecting.
break;
}
#endif
continue;
}
Con_TPrintf (TL_NETGETPACKETERROR, strerror(qerrno));
continue;
}
SockadrToNetadr (&from, &net_from);
net_message.cursize = ret;
if (net_message.cursize == sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (net_from));
return false;
}
return ret;
}
return false;
}
//=============================================================================
void NET_SendPacket (netsrc_t netsrc, int length, void *data, netadr_t to)
{
int ret;
struct sockaddr_qstorage addr;
int socket;
if (to.type == NA_LOOPBACK)
{
// if ((rand()&15)==15) //simulate PL
// return;
NET_SendLoopPacket(netsrc, length, data, to);
return;
}
if (netsrc == NS_SERVER)
{
#ifdef CLIENTONLY
Sys_Error("NET_SendPacket: bad netsrc");
socket = 0;
#else
#ifdef USEIPX
if (to.type == NA_BROADCAST_IPX || to.type == NA_IPX)
socket = svs.socketipx;
else
#endif
#ifdef IPPROTO_IPV6
if (to.type == NA_IPV6)
socket = svs.socketip6;
else
#endif
socket = svs.socketip;
#endif
}
else
{
#ifdef SERVERONLY
Sys_Error("NET_SendPacket: bad netsrc");
socket = 0;
#else
#ifdef USEIPX
if (to.type == NA_BROADCAST_IPX || to.type == NA_IPX)
socket = cls.socketipx;
else
#endif
#ifdef IPPROTO_IPV6
if (to.type == NA_BROADCAST_IP6 || to.type == NA_IPV6)
socket = cls.socketip6;
else
#endif
socket = cls.socketip;
#endif
}
NetadrToSockadr (&to, &addr);
ret = sendto (socket, data, length, 0, (struct sockaddr*)&addr, sizeof(addr) );
if (ret == -1)
{
// wouldblock is silent
if (qerrno == EWOULDBLOCK)
return;
if (qerrno == ECONNREFUSED)
return;
#ifndef SERVERONLY
if (qerrno == EADDRNOTAVAIL)
Con_DPrintf("NET_SendPacket Warning: %i\n", qerrno);
else
#endif
Con_TPrintf (TL_NETSENDERROR, qerrno);
}
}
//=============================================================================
int UDP_OpenSocket (int port, qboolean bcast)
{
int newsocket;
struct sockaddr_in address;
unsigned long _true = true;
int i;
int maxport = port + 100;
if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
Sys_Error ("UDP_OpenSocket: socket: %s", strerror(qerrno));
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(qerrno));
if (bcast)
{
_true = true;
if (setsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true)) == -1)
{
Con_Printf("Cannot create broadcast socket\n");
return 0;
}
}
address.sin_family = AF_INET;
//ZOID -- check for interface binding option
if ((i = COM_CheckParm("-ip")) != 0 && i < com_argc) {
address.sin_addr.s_addr = inet_addr(com_argv[i+1]);
Con_TPrintf(TL_NETBINDINTERFACE,
inet_ntoa(address.sin_addr));
} else
address.sin_addr.s_addr = INADDR_ANY;
for(;;)
{
if (port == PORT_ANY)
address.sin_port = 0;
else
address.sin_port = htons((short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
{
if (!port)
Sys_Error ("UDP_OpenSocket: bind: %s", strerror(qerrno));
port++;
if (port > maxport)
Sys_Error ("UDP_OpenSocket: bind: %s", strerror(qerrno));
}
else
break;
}
return newsocket;
}
#ifdef IPPROTO_IPV6
int UDP6_OpenSocket (int port, qboolean bcast)
{
int newsocket;
struct sockaddr_in6 address;
unsigned long _true = true;
// int i;
int maxport = port + 100;
if ((newsocket = socket (PF_INET6, SOCK_DGRAM, 0)) == -1)
{
Con_Printf("IPV6 is not supported: %s\n", strerror(qerrno));
return 0;
}
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(qerrno));
if (bcast)
{
// address.sin6_addr
// _true = true;
// if (setsockopt(newsocket, SOL_SOCKET, IP_ADD_MEMBERSHIP, (char *)&_true, sizeof(_true)) == -1)
// {
Con_Printf("Cannot create broadcast socket\n");
closesocket(newsocket);
return 0;
// }
}
address.sin6_family = AF_INET6;
//ZOID -- check for interface binding option
// if ((i = COM_CheckParm("-ip6")) != 0 && i < com_argc) {
// address.sin6_addr = inet_addr(com_argv[i+1]);
/// Con_TPrintf(TL_NETBINDINTERFACE,
// inet_ntoa(address.sin6_addr));
// } else
memcpy(&address.sin6_addr, &in6addr_any, sizeof(in6addr_any));
for(;;)
{
if (port == PORT_ANY)
address.sin6_port = 0;
else
address.sin6_port = htons((short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
{
if (!port)
Sys_Error ("UDP6_OpenSocket: bind: %s", strerror(qerrno));
port++;
if (port > maxport)
Sys_Error ("UDP6_OpenSocket: bind: %s", strerror(qerrno));
}
else
break;
}
return newsocket;
}
#endif
void UDP_CloseSocket (int socket)
{
closesocket(socket);
}
int IPX_OpenSocket (int port, qboolean bcast)
{
#ifndef USEIPX
return 0;
#else
int newsocket;
struct sockaddr_ipx address;
u_long _true = 1;
if ((newsocket = socket (PF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == -1)
{
if (qerrno != EAFNOSUPPORT)
Con_Printf ("WARNING: IPX_Socket: socket: %s\n", qerrno);
return 0;
}
// make it non-blocking
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
{
Con_Printf ("WARNING: IPX_Socket: ioctl FIONBIO: %s\n", qerrno);
return 0;
}
if (bcast)
{
// make it broadcast capable
if (setsockopt(newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof(_true)) == -1)
{
Con_Printf ("WARNING: IPX_Socket: setsockopt SO_BROADCAST: %s\n", qerrno);
return 0;
}
}
address.sa_family = AF_IPX;
memset (address.sa_netnum, 0, 4);
memset (address.sa_nodenum, 0, 6);
if (port == PORT_ANY)
address.sa_socket = 0;
else
address.sa_socket = htons((short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
{
Con_Printf ("WARNING: IPX_Socket: bind: %i\n", qerrno);
closesocket (newsocket);
return 0;
}
return newsocket;
#endif
}
void IPX_CloseSocket (int socket)
{
#ifdef USEIPX
closesocket(socket);
#endif
}
// sleeps msec or until net socket is ready
//stdin can sometimes be a socket. As a result,
//we give the option to select it for nice console imput with timeouts.
qboolean NET_Sleep(int msec, qboolean stdinissocket)
{
struct timeval timeout;
fd_set fdset;
int i;
FD_ZERO(&fdset);
if (stdinissocket)
FD_SET(0, &fdset);
i = 0;
if (svs.socketip)
{
FD_SET(svs.socketip, &fdset); // network socket
i = svs.socketip;
}
if (svs.socketip6)
{
FD_SET(svs.socketip6, &fdset); // network socket
if (svs.socketip6 > i)
i = svs.socketip6;
i = svs.socketip6;
}
#ifdef USEIPX
if (svs.socketipx)
{
FD_SET(svs.socketipx, &fdset); // network socket
if (svs.socketipx > i)
i = svs.socketipx;
}
#endif
timeout.tv_sec = msec/1000;
timeout.tv_usec = (msec%1000)*1000;
select(i+1, &fdset, NULL, NULL, &timeout);
if (stdinissocket)
return FD_ISSET(0, &fdset);
return true;
}
void NET_GetLocalIP6Address (int socket)
{
// char buff[512];
struct sockaddr_qstorage address;
int namelen;
// netadr_t adr;
// gethostname(buff, 512);
// buff[512-1] = 0;
// NET_StringToAdr (buff, &adr);
namelen = sizeof(address);
if (getsockname (socket, (struct sockaddr *)&address, &namelen) == -1)
Sys_Error ("NET_Init: getsockname:", strerror(qerrno));
SockadrToNetadr(&address, &net_local_ip6adr);
/* if (!*(int*)net_local_ip6adr.ip) //socket was set to auto
*(int *)net_local_ip6adr.ip = *(int *)adr.ip; //change it to what the machine says it is, rather than the socket.
*/
Con_TPrintf(TL_IPADDRESSIS, NET_AdrToString (net_local_ip6adr) );
}
void NET_GetLocalIPAddress (int socket)
{
char buff[512];
struct sockaddr_qstorage address;
int namelen;
netadr_t adr;
gethostname(buff, 512);
buff[512-1] = 0;
NET_StringToAdr (buff, &adr);
namelen = sizeof(address);
if (getsockname (socket, (struct sockaddr *)&address, &namelen) == -1)
Sys_Error ("NET_Init: getsockname:", strerror(qerrno));
SockadrToNetadr(&address, &net_local_ipadr);
if (!*(int*)net_local_ipadr.ip) //socket was set to auto
*(int *)net_local_ipadr.ip = *(int *)adr.ip; //change it to what the machine says it is, rather than the socket.
Con_TPrintf(TL_IPADDRESSIS, NET_AdrToString (net_local_ipadr) );
}
void NET_GetLocalIPXAddress (int socket)
{
//we don't really care... this is for lans
/* char buff[512];
struct sockaddr address;
int namelen;
netadr_t adr;
gethostname(buff, 512);
buff[512-1] = 0;
NET_StringToAdr (buff, &adr);
namelen = sizeof(address);
if (getsockname (socket, (struct sockaddr *)&address, &namelen) == -1)
Sys_Error ("NET_Init: getsockname:", strerror(qerrno));
SockadrToNetadr(&address, &net_local_adr);
if (!*(int*)net_local_ipadr.ip)
*(int *)net_local_ipadr.ip = *(int *)adr.ip;
if (net_local_adr.type == NA_IP)
Con_TPrintf(TL_IPADDRESSIS, NET_AdrToString (net_local_adr) );
else
Con_Printf("IPX Address: %s\n", NET_AdrToString (net_local_adr) );
*/
}
/*
====================
NET_Init
====================
*/
void NET_Init (void)
{
#ifdef _WIN32
WORD wVersionRequested;
int r;
#ifdef IPPROTO_IPV6
HMODULE ws2_32dll;
ws2_32dll = LoadLibrary("ws2_32.dll");
if (ws2_32dll)
{
pfreeaddrinfo = (void *)GetProcAddress(ws2_32dll, "freeaddrinfo");
pgetaddrinfo = (void *)GetProcAddress(ws2_32dll, "getaddrinfo");
if (!pgetaddrinfo || !pfreeaddrinfo)
{
pgetaddrinfo = NULL;
pfreeaddrinfo = NULL;
FreeLibrary(ws2_32dll);
}
}
else
pgetaddrinfo = NULL;
#endif
wVersionRequested = MAKEWORD(1, 1);
r = WSAStartup (MAKEWORD(1, 1), &winsockdata);
if (r)
Sys_Error ("Winsock initialization failed.");
#endif
Con_TPrintf(TL_UDPINITED);
#ifdef NQPROT
NQ_NET_Init();
#endif
}
#ifndef SERVERONLY
void NET_InitClient(void)
{
int port;
int p;
port = PORT_CLIENT;
p = COM_CheckParm ("-port");
if (p && p < com_argc)
{
port = atoi(com_argv[p+1]);
}
//
// open the single socket to be used for all communications
//
cls.socketip = UDP_OpenSocket (port, false);
#ifdef IPPROTO_IPV6
cls.socketip6 = UDP6_OpenSocket (port, false);
#endif
#ifdef USEIPX
cls.socketipx = IPX_OpenSocket (port, false);
#endif
//
// init the message buffer
//
net_message.maxsize = sizeof(net_message_buffer);
net_message.data = net_message_buffer;
//
// determine my name & address
//
NET_GetLocalIPAddress (cls.socketip);
Con_TPrintf(TL_CLIENTPORTINITED);
}
#endif
#ifndef CLIENTONLY
void NET_CloseServer(void)
{
if (svs.socketip)
{
UDP_CloseSocket(svs.socketip);
svs.socketip = 0;
}
if (svs.socketip6)
{
UDP_CloseSocket(svs.socketip);
svs.socketip = 0;
}
#ifdef USEIPX
if (svs.socketipx)
{
IPX_CloseSocket(svs.socketipx);
svs.socketipx = 0;
}
#endif
net_local_ipadr.type = NA_LOOPBACK;
}
void NET_InitServer(void)
{
int port;
int p;
port = PORT_SERVER;
if (sv_public.value)
{
p = COM_CheckParm ("-svport");
if (p && p < com_argc)
{
port = atoi(com_argv[p+1]);
}
p = COM_CheckParm ("-port");
if (p && p < com_argc)
{
port = atoi(com_argv[p+1]);
}
//
// open the single socket to be used for all communications
//
if (!svs.socketip)
{
svs.socketip = UDP_OpenSocket (port, false);
NET_GetLocalIPAddress (svs.socketip);
}
#ifdef IPPROTO_IPV6
if (!svs.socketip6)
{
svs.socketip6 = UDP6_OpenSocket (port, false);
if (svs.socketip6)
NET_GetLocalIP6Address (svs.socketip6);
}
#endif
#ifdef USEIPX
if (!svs.socketipx)
{
svs.socketipx = IPX_OpenSocket (port, false);
NET_GetLocalIPXAddress (svs.socketipx);
}
#endif
}
else
NET_CloseServer();
//
// init the message buffer
//
net_message.maxsize = sizeof(net_message_buffer);
net_message.data = net_message_buffer;
}
#endif
/*
====================
NET_Shutdown
====================
*/
void NET_Shutdown (void)
{
#ifndef CLIENTONLY
NET_CloseServer();
#endif
#ifndef SERVERONLY
UDP_CloseSocket (cls.socketip);
UDP_CloseSocket (cls.socketip6);
#ifdef USEIPX
IPX_CloseSocket (cls.socketipx);
#endif
#endif
#ifdef NQPROT
NQ_NET_Shutdown();
#endif
#ifdef _WIN32
#ifdef SERVERTONLY
if (!serverthreadID) //running as subsystem of client. Don't close all of it's sockets too.
#endif
WSACleanup ();
#endif
}
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