net_psp2.c 26.5 KB
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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

#include "../qcommon/q_shared.h"
#include "../qcommon/qcommon.h"

#	include <sys/socket.h>
#	include <errno.h>
#	include <netdb.h>
#	include <netinet/in.h>
#	include <sys/types.h>
#	include <sys/time.h>
#	include <unistd.h>
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#	include <vitasdk.h>
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typedef int SOCKET;
#	define INVALID_SOCKET		-1
#	define SOCKET_ERROR			-1
#	define closesocket			close
#	define ioctlsocket			ioctl
typedef int	ioctlarg_t;
#	define socketError			errno

#include <psp2/net/net.h>
#include <sys/select.h>

#define INADDR_BROADCAST SCE_NET_INADDR_BROADCAST
#define INADDR_ANY SCE_NET_INADDR_ANY

struct sockaddr_storage {
    uint8_t ss_len;
    sa_family_t ss_family;
    char ss_padding[128];
};

struct addrinfo {
    int              ai_flags;
    int              ai_family;
    int              ai_socktype;
    int              ai_protocol;
    socklen_t        ai_addrlen;
    struct sockaddr *ai_addr;
    char            *ai_canonname;
    struct addrinfo *ai_next;
};

const char *gai_strerror(int errcode) {
    return "";
}

#define NI_NUMERICHOST 0

static qboolean usingSocks = qfalse;
static int networkingEnabled = 0;

static cvar_t	*net_enabled;

static cvar_t	*net_socksEnabled;
static cvar_t	*net_socksServer;
static cvar_t	*net_socksPort;
static cvar_t	*net_socksUsername;
static cvar_t	*net_socksPassword;

static cvar_t	*net_ip;
static cvar_t	*net_port;

static cvar_t	*net_dropsim;

static struct sockaddr	socksRelayAddr;

static SOCKET	ip_socket = INVALID_SOCKET;
static SOCKET	socks_socket = INVALID_SOCKET;

#ifndef IF_NAMESIZE
#define IF_NAMESIZE 16
#endif

// use an admin local address per default so that network admins can decide on how to handle quake3 traffic.
#define NET_MULTICAST_IP6 "ff04::696f:7175:616b:6533"

#define	MAX_IPS		32

typedef struct
{
	char ifname[IF_NAMESIZE];

	netadrtype_t type;
	sa_family_t family;
	struct sockaddr_storage addr;
	struct sockaddr_storage netmask;
} nip_localaddr_t;

static nip_localaddr_t localIP[MAX_IPS];
static int numIP;


//=============================================================================


/*
====================
NET_ErrorString
====================
*/
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char error[256];
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char *NET_ErrorString( void ) {
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	sprintf(error, "sceNet returned 0x%08X", socketError);
	return error;
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}

static void NetadrToSockadr( netadr_t *a, struct sockaddr *s ) {
	if( a->type == NA_BROADCAST ) {
		((struct sockaddr_in *)s)->sin_family = AF_INET;
		((struct sockaddr_in *)s)->sin_port = a->port;
		((struct sockaddr_in *)s)->sin_addr.s_addr = INADDR_BROADCAST;
	}
	else if( a->type == NA_IP ) {
		((struct sockaddr_in *)s)->sin_family = AF_INET;
		((struct sockaddr_in *)s)->sin_addr.s_addr = *(int *)&a->ip;
		((struct sockaddr_in *)s)->sin_port = a->port;
	}
}


static void SockadrToNetadr( struct sockaddr *s, netadr_t *a ) {
	if (s->sa_family == 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;
	}
}


static struct addrinfo *SearchAddrInfo(struct addrinfo *hints, sa_family_t family)
{
	while(hints)
	{
		if(hints->ai_family == family)
			return hints;

		hints = hints->ai_next;
	}

	return NULL;
}

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static inline in_addr_t inet_addr( const char *cp )
{
	int32_t b1, b2, b3, b4;
	int res = sscanf( cp, "%d.%d.%d.%d", &b1, &b2, &b3, &b4 );
	if( res != 4 ) return (in_addr_t)(-1); // is actually expected behavior
	return htonl( (b1 << 24) | (b2 << 16) | (b3 << 8) | b4 );
}

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/*
=============
Sys_StringToSockaddr
=============
*/
static qboolean Sys_StringToSockaddr(const char *s, struct sockaddr *sadr, int sadr_len, sa_family_t family)
{
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	struct hostent	*h;
	//char	*colon; // bk001204 - unused
	
	memset (sadr, 0, sizeof(*sadr));
	((struct sockaddr_in *)sadr)->sin_family = AF_INET;
	
	((struct sockaddr_in *)sadr)->sin_port = 0;
	
	if ( s[0] >= '0' && s[0] <= '9')
	{
		*(int *)&((struct sockaddr_in *)sadr)->sin_addr = inet_addr(s);
	}
	else
	{
		if (! (h = gethostbyname(s)) )
			return qfalse;
		*(int *)&((struct sockaddr_in *)sadr)->sin_addr = *(int *)h->h_addr_list[0];
	}
	
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	return qtrue;
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}

/*
=============
Sys_SockaddrToString
=============
*/
static void Sys_SockaddrToString(char *dest, int destlen, struct sockaddr *input)
{
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	int haddr = sceNetNtohl(((struct sockaddr_in *)input)->sin_addr.s_addr);
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	sprintf(dest, "%d.%d.%d.%d:%d", (haddr >> 24) & 0xff, (haddr >> 16) & 0xff, (haddr >> 8) & 0xff, haddr & 0xff, sceNetNtohs(((struct sockaddr_in *)input)->sin_port));
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}

/*
=============
Sys_StringToAdr
=============
*/
qboolean Sys_StringToAdr( const char *s, netadr_t *a, netadrtype_t family ) {
	struct sockaddr_storage sadr;
	sa_family_t fam;

	switch(family)
	{
		case NA_IP:
			fam = AF_INET;
			break;
		default:
			fam = AF_UNSPEC;
			break;
	}
	if( !Sys_StringToSockaddr(s, (struct sockaddr *) &sadr, sizeof(sadr), fam ) ) {
		return qfalse;
	}

	SockadrToNetadr( (struct sockaddr *) &sadr, a );
	return qtrue;
}

/*
===================
NET_CompareBaseAdrMask

Compare without port, and up to the bit number given in netmask.
===================
*/
qboolean NET_CompareBaseAdrMask(netadr_t a, netadr_t b, int netmask)
{
	byte cmpmask, *addra, *addrb;
	int curbyte;

	if (a.type != b.type)
		return qfalse;

	if (a.type == NA_LOOPBACK)
		return qtrue;

	if(a.type == NA_IP)
	{
		addra = (byte *) &a.ip;
		addrb = (byte *) &b.ip;

		if(netmask < 0 || netmask > 32)
			netmask = 32;
	}
	else
	{
		Com_Printf ("NET_CompareBaseAdr: bad address type\n");
		return qfalse;
	}

	curbyte = netmask >> 3;

	if(curbyte && memcmp(addra, addrb, curbyte))
		return qfalse;

	netmask &= 0x07;
	if(netmask)
	{
		cmpmask = (1 << netmask) - 1;
		cmpmask <<= 8 - netmask;

		if((addra[curbyte] & cmpmask) == (addrb[curbyte] & cmpmask))
			return qtrue;
	}
	else
		return qtrue;

	return qfalse;
}


/*
===================
NET_CompareBaseAdr

Compares without the port
===================
*/
qboolean NET_CompareBaseAdr (netadr_t a, netadr_t b)
{
	return NET_CompareBaseAdrMask(a, b, -1);
}

const char	*NET_AdrToString (netadr_t a)
{
	static	char	s[NET_ADDRSTRMAXLEN];

	if (a.type == NA_LOOPBACK)
		Com_sprintf (s, sizeof(s), "loopback");
	else if (a.type == NA_BOT)
		Com_sprintf (s, sizeof(s), "bot");
	else if (a.type == NA_IP)
	{
		struct sockaddr_storage sadr;

		memset(&sadr, 0, sizeof(sadr));
		NetadrToSockadr(&a, (struct sockaddr *) &sadr);
		Sys_SockaddrToString(s, sizeof(s), (struct sockaddr *) &sadr);
	}

	return s;
}

const char	*NET_AdrToStringwPort (netadr_t a)
{
	static	char	s[NET_ADDRSTRMAXLEN];

	if (a.type == NA_LOOPBACK)
		Com_sprintf (s, sizeof(s), "loopback");
	else if (a.type == NA_BOT)
		Com_sprintf (s, sizeof(s), "bot");
	else if(a.type == NA_IP)
		Com_sprintf(s, sizeof(s), "%s:%hu", NET_AdrToString(a), ntohs(a.port));

	return s;
}


qboolean	NET_CompareAdr (netadr_t a, netadr_t b)
{
	if(!NET_CompareBaseAdr(a, b))
		return qfalse;

	if (a.type == NA_IP)
	{
		if (a.port == b.port)
			return qtrue;
	}
	else
		return qtrue;

	return qfalse;
}


qboolean	NET_IsLocalAddress( netadr_t adr ) {
	return adr.type == NA_LOOPBACK;
}

//=============================================================================

/*
==================
NET_GetPacket

Receive one packet
==================
*/
qboolean NET_GetPacket(netadr_t *net_from, msg_t *net_message, fd_set *fdr)
{
	int 	ret;
	struct sockaddr_storage from;
	socklen_t	fromlen;
	int		err;

	if(ip_socket != INVALID_SOCKET && FD_ISSET(ip_socket, fdr))
	{
		fromlen = sizeof(from);
		ret = recvfrom( ip_socket, (void *)net_message->data, net_message->maxsize, 0, (struct sockaddr *) &from, &fromlen );

		if (ret == SOCKET_ERROR)
		{
			err = socketError;

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			if( err != SCE_NET_EAGAIN && err != SCE_NET_ECONNRESET )
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				Com_Printf( "NET_GetPacket: %s\n", NET_ErrorString() );
		}
		else
		{

			memset( ((struct sockaddr_in *)&from)->sin_zero, 0, 8 );

			if ( usingSocks && memcmp( &from, &socksRelayAddr, fromlen ) == 0 ) {
				if ( ret < 10 || net_message->data[0] != 0 || net_message->data[1] != 0 || net_message->data[2] != 0 || net_message->data[3] != 1 ) {
					return qfalse;
				}
				net_from->type = NA_IP;
				net_from->ip[0] = net_message->data[4];
				net_from->ip[1] = net_message->data[5];
				net_from->ip[2] = net_message->data[6];
				net_from->ip[3] = net_message->data[7];
				net_from->port = *(short *)&net_message->data[8];
				net_message->readcount = 10;
			}
			else {
				SockadrToNetadr( (struct sockaddr *) &from, net_from );
				net_message->readcount = 0;
			}

			if( ret >= net_message->maxsize ) {
				Com_Printf( "Oversize packet from %s\n", NET_AdrToString (*net_from) );
				return qfalse;
			}

			net_message->cursize = ret;
			return qtrue;
		}
	}

	return qfalse;
}

//=============================================================================

static char socksBuf[4096];

/*
==================
Sys_SendPacket
==================
*/
void Sys_SendPacket( int length, const void *data, netadr_t to ) {
	int				ret = SOCKET_ERROR;
	struct sockaddr_storage	addr;

	if( to.type != NA_BROADCAST && to.type != NA_IP && to.type != NA_IP6 && to.type != NA_MULTICAST6)
	{
		Com_Error( ERR_FATAL, "Sys_SendPacket: bad address type" );
		return;
	}

	if( (ip_socket == INVALID_SOCKET && to.type == NA_IP) ||
		(ip_socket == INVALID_SOCKET && to.type == NA_BROADCAST) )
		return;

	if(to.type == NA_MULTICAST6 && (net_enabled->integer & NET_DISABLEMCAST))
		return;

	memset(&addr, 0, sizeof(addr));
	NetadrToSockadr( &to, (struct sockaddr *) &addr );

	if( usingSocks && to.type == NA_IP ) {
		socksBuf[0] = 0;	// reserved
		socksBuf[1] = 0;
		socksBuf[2] = 0;	// fragment (not fragmented)
		socksBuf[3] = 1;	// address type: IPV4
		*(int *)&socksBuf[4] = ((struct sockaddr_in *)&addr)->sin_addr.s_addr;
		*(short *)&socksBuf[8] = ((struct sockaddr_in *)&addr)->sin_port;
		memcpy( &socksBuf[10], data, length );
		ret = sendto( ip_socket, socksBuf, length+10, 0, &socksRelayAddr, sizeof(socksRelayAddr) );
	}
	else {
		if(addr.ss_family == AF_INET)
			ret = sendto( ip_socket, data, length, 0, (struct sockaddr *) &addr, sizeof(struct sockaddr_in) );
	}
	if( ret == SOCKET_ERROR ) {
		int err = socketError;

		// wouldblock is silent
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		if( err == SCE_NET_EAGAIN ) {
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			return;
		}

		// some PPP links do not allow broadcasts and return an error
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		if( ( err == SCE_NET_EADDRNOTAVAIL ) && ( ( to.type == NA_BROADCAST ) ) ) {
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			return;
		}

		Com_Printf( "Sys_SendPacket: %s\n", NET_ErrorString() );
	}
}


//=============================================================================

/*
==================
Sys_IsLANAddress

LAN clients will have their rate var ignored
==================
*/
qboolean Sys_IsLANAddress( netadr_t adr ) {
	int		index, run, addrsize;
	qboolean differed;
	byte *compareadr, *comparemask, *compareip;

	if( adr.type == NA_LOOPBACK ) {
		return qtrue;
	}

	if( adr.type == NA_IP )
	{
		// RFC1918:
		// 10.0.0.0        -   10.255.255.255  (10/8 prefix)
		// 172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
		// 192.168.0.0     -   192.168.255.255 (192.168/16 prefix)
		if(adr.ip[0] == 10)
			return qtrue;
		if(adr.ip[0] == 172 && (adr.ip[1]&0xf0) == 16)
			return qtrue;
		if(adr.ip[0] == 192 && adr.ip[1] == 168)
			return qtrue;

		if(adr.ip[0] == 127)
			return qtrue;
	}

	// Now compare against the networks this computer is member of.
	for(index = 0; index < numIP; index++)
	{
		if(localIP[index].type == adr.type)
		{
			if(adr.type == NA_IP)
			{
				compareip = (byte *) &((struct sockaddr_in *) &localIP[index].addr)->sin_addr.s_addr;
				comparemask = (byte *) &((struct sockaddr_in *) &localIP[index].netmask)->sin_addr.s_addr;
				compareadr = adr.ip;

				addrsize = sizeof(adr.ip);
			}

			differed = qfalse;
			for(run = 0; run < addrsize; run++)
			{
				if((compareip[run] & comparemask[run]) != (compareadr[run] & comparemask[run]))
				{
					differed = qtrue;
					break;
				}
			}

			if(!differed)
				return qtrue;

		}
	}

	return qfalse;
}

/*
==================
Sys_ShowIP
==================
*/
void Sys_ShowIP(void) {
	int i;
	char addrbuf[NET_ADDRSTRMAXLEN];

	for(i = 0; i < numIP; i++)
	{
		Sys_SockaddrToString(addrbuf, sizeof(addrbuf), (struct sockaddr *) &localIP[i].addr);

		if(localIP[i].type == NA_IP)
			Com_Printf( "IP: %s\n", addrbuf);
	}
}


//=============================================================================


/*
====================
NET_IPSocket
====================
*/
SOCKET NET_IPSocket( char *net_interface, int port, int *err ) {

	SOCKET				newsocket;
	struct sockaddr_in	address;
	ioctlarg_t			_true = 1;
	int					i = 1;

	*err = 0;

	if( net_interface ) {
		Com_Printf( "Opening IP socket: %s:%i\n", net_interface, port );
	}
	else {
		Com_Printf( "Opening IP socket: 0.0.0.0:%i\n", port );
	}

	if( ( newsocket = socket( PF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) == INVALID_SOCKET ) {
		*err = socketError;
		Com_Printf( "WARNING: NET_IPSocket: socket: %s\n", NET_ErrorString() );
		return newsocket;
	}
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	// make it non-blocking
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	setsockopt(newsocket, SOL_SOCKET, SO_NONBLOCK, (char *)&_true, sizeof(_true));
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	// make it broadcast capable
	if( setsockopt( newsocket, SOL_SOCKET, SO_BROADCAST, (char *) &i, sizeof(i) ) == SOCKET_ERROR ) {
		Com_Printf( "WARNING: NET_IPSocket: setsockopt SO_BROADCAST: %s\n", NET_ErrorString() );
	}

	if( !net_interface || !net_interface[0]) {
		address.sin_family = AF_INET;
		address.sin_addr.s_addr = INADDR_ANY;
	}
	else
	{
		if(!Sys_StringToSockaddr( net_interface, (struct sockaddr *)&address, sizeof(address), AF_INET))
		{
			closesocket(newsocket);
			return INVALID_SOCKET;
		}
	}

	if( port == PORT_ANY ) {
		address.sin_port = 0;
	}
	else {
		address.sin_port = htons( (short)port );
	}

	if( bind( newsocket, (void *)&address, sizeof(address) ) == SOCKET_ERROR ) {
		Com_Printf( "WARNING: NET_IPSocket: bind: %s\n", NET_ErrorString() );
		*err = socketError;
		closesocket( newsocket );
		return INVALID_SOCKET;
	}

	return newsocket;
}

/*
====================
NET_OpenSocks
====================
*/
void NET_OpenSocks( int port ) {
	struct sockaddr_in	address;
	struct hostent		*h;
	int					len;
	qboolean			rfc1929;
	unsigned char		buf[64];

	usingSocks = qfalse;

	Com_Printf( "Opening connection to SOCKS server.\n" );

	if ( ( socks_socket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP ) ) == INVALID_SOCKET ) {
		Com_Printf( "WARNING: NET_OpenSocks: socket: %s\n", NET_ErrorString() );
		return;
	}

	h = gethostbyname( net_socksServer->string );
	if ( h == NULL ) {
		Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: %s\n", NET_ErrorString() );
		return;
	}
	if ( h->h_addrtype != AF_INET ) {
		Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: address type was not AF_INET\n" );
		return;
	}
	address.sin_family = AF_INET;
	address.sin_addr.s_addr = *(int *)h->h_addr_list[0];
	address.sin_port = htons( (short)net_socksPort->integer );

	if ( connect( socks_socket, (struct sockaddr *)&address, sizeof( address ) ) == SOCKET_ERROR ) {
		Com_Printf( "NET_OpenSocks: connect: %s\n", NET_ErrorString() );
		return;
	}

	// send socks authentication handshake
	if ( *net_socksUsername->string || *net_socksPassword->string ) {
		rfc1929 = qtrue;
	}
	else {
		rfc1929 = qfalse;
	}

	buf[0] = 5;		// SOCKS version
	// method count
	if ( rfc1929 ) {
		buf[1] = 2;
		len = 4;
	}
	else {
		buf[1] = 1;
		len = 3;
	}
	buf[2] = 0;		// method #1 - method id #00: no authentication
	if ( rfc1929 ) {
		buf[2] = 2;		// method #2 - method id #02: username/password
	}
	if ( send( socks_socket, (void *)buf, len, 0 ) == SOCKET_ERROR ) {
		Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
		return;
	}

	// get the response
	len = recv( socks_socket, (void *)buf, 64, 0 );
	if ( len == SOCKET_ERROR ) {
		Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
		return;
	}
	if ( len != 2 || buf[0] != 5 ) {
		Com_Printf( "NET_OpenSocks: bad response\n" );
		return;
	}
	switch( buf[1] ) {
		case 0:	// no authentication
			break;
		case 2: // username/password authentication
			break;
		default:
			Com_Printf( "NET_OpenSocks: request denied\n" );
			return;
	}

	// do username/password authentication if needed
	if ( buf[1] == 2 ) {
		int		ulen;
		int		plen;

		// build the request
		ulen = strlen( net_socksUsername->string );
		plen = strlen( net_socksPassword->string );

		buf[0] = 1;		// username/password authentication version
		buf[1] = ulen;
		if ( ulen ) {
			memcpy( &buf[2], net_socksUsername->string, ulen );
		}
		buf[2 + ulen] = plen;
		if ( plen ) {
			memcpy( &buf[3 + ulen], net_socksPassword->string, plen );
		}

		// send it
		if ( send( socks_socket, (void *)buf, 3 + ulen + plen, 0 ) == SOCKET_ERROR ) {
			Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
			return;
		}

		// get the response
		len = recv( socks_socket, (void *)buf, 64, 0 );
		if ( len == SOCKET_ERROR ) {
			Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
			return;
		}
		if ( len != 2 || buf[0] != 1 ) {
			Com_Printf( "NET_OpenSocks: bad response\n" );
			return;
		}
		if ( buf[1] != 0 ) {
			Com_Printf( "NET_OpenSocks: authentication failed\n" );
			return;
		}
	}

	// send the UDP associate request
	buf[0] = 5;		// SOCKS version
	buf[1] = 3;		// command: UDP associate
	buf[2] = 0;		// reserved
	buf[3] = 1;		// address type: IPV4
	*(int *)&buf[4] = INADDR_ANY;
	*(short *)&buf[8] = htons( (short)port );		// port
	if ( send( socks_socket, (void *)buf, 10, 0 ) == SOCKET_ERROR ) {
		Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
		return;
	}

	// get the response
	len = recv( socks_socket, (void *)buf, 64, 0 );
	if( len == SOCKET_ERROR ) {
		Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
		return;
	}
	if( len < 2 || buf[0] != 5 ) {
		Com_Printf( "NET_OpenSocks: bad response\n" );
		return;
	}
	// check completion code
	if( buf[1] != 0 ) {
		Com_Printf( "NET_OpenSocks: request denied: %i\n", buf[1] );
		return;
	}
	if( buf[3] != 1 ) {
		Com_Printf( "NET_OpenSocks: relay address is not IPV4: %i\n", buf[3] );
		return;
	}
	((struct sockaddr_in *)&socksRelayAddr)->sin_family = AF_INET;
	((struct sockaddr_in *)&socksRelayAddr)->sin_addr.s_addr = *(int *)&buf[4];
	((struct sockaddr_in *)&socksRelayAddr)->sin_port = *(short *)&buf[8];
	memset( ((struct sockaddr_in *)&socksRelayAddr)->sin_zero, 0, 8 );

	usingSocks = qtrue;
}


/*
=====================
NET_AddLocalAddress
=====================
*/
static void NET_AddLocalAddress(char *ifname, struct sockaddr *addr, struct sockaddr *netmask)
{
	int addrlen;
	sa_family_t family;

	// only add addresses that have all required info.
	if(!addr || !netmask || !ifname)
		return;

	family = addr->sa_family;

	if(numIP < MAX_IPS)
	{
		if(family == AF_INET)
		{
			addrlen = sizeof(struct sockaddr_in);
			localIP[numIP].type = NA_IP;
		}
		else
			return;

		Q_strncpyz(localIP[numIP].ifname, ifname, sizeof(localIP[numIP].ifname));

		localIP[numIP].family = family;

		memcpy(&localIP[numIP].addr, addr, addrlen);
		memcpy(&localIP[numIP].netmask, netmask, addrlen);

		numIP++;
	}
}

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static unsigned long myAddr;
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static void NET_GetLocalAddress( void ) {
	char				hostname[256];
	struct addrinfo	hint;
	struct addrinfo	*res = NULL;

	numIP = 0;

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	SceNetCtlInfo info;
	sceNetCtlInetGetInfo(SCE_NETCTL_INFO_GET_IP_ADDRESS, &info);
	sceNetInetPton(SCE_NET_AF_INET, info.ip_address, &myAddr);
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	//->Com_Printf( "Hostname: %s\n", hostname );
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	memset(&hint, 0, sizeof(hint));

	hint.ai_family = AF_UNSPEC;
	hint.ai_socktype = SOCK_DGRAM;

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	//if(!getaddrinfo(hostname, NULL, &hint, &res))
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	{
		struct sockaddr_in mask4;
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		struct sockaddr_in addr;
		addr.sin_family = AF_INET;
		addr.sin_port = 5000;
		addr.sin_addr.s_addr = myAddr;
		
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		/* On operating systems where it's more difficult to find out the configured interfaces, we'll just assume a
		 * netmask with all bits set. */

		memset(&mask4, 0, sizeof(mask4));
		mask4.sin_family = AF_INET;
		memset(&mask4.sin_addr.s_addr, 0xFF, sizeof(mask4.sin_addr.s_addr));

		// add all IPs from returned list.
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		NET_AddLocalAddress("", (struct sockaddr*)&addr, (struct sockaddr *) &mask4);
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		Sys_ShowIP();
	}

}

/*
====================
NET_OpenIP
====================
*/
void NET_OpenIP( void ) {
	int		i;
	int		err;
	int		port;
	int		port6;

	port = net_port->integer;

	NET_GetLocalAddress();

	// automatically scan for a valid port, so multiple
	// dedicated servers can be started without requiring
	// a different net_port for each one

	if(net_enabled->integer & NET_ENABLEV4)
	{
		for( i = 0 ; i < 10 ; i++ ) {
			ip_socket = NET_IPSocket( net_ip->string, port + i, &err );
			if (ip_socket != INVALID_SOCKET) {
				Cvar_SetValue( "net_port", port + i );

				if (net_socksEnabled->integer)
					NET_OpenSocks( port + i );

				break;
			}
			else
			{
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				if(err == SCE_NET_EAFNOSUPPORT)
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					break;
			}
		}

		if(ip_socket == INVALID_SOCKET)
			Com_Printf( "WARNING: Couldn't bind to a v4 ip address.\n");
	}
}


//===================================================================


/*
====================
NET_GetCvars
====================
*/
static qboolean NET_GetCvars( void ) {
	int modified;

#ifdef DEDICATED
	// I want server owners to explicitly turn on ipv6 support.
	net_enabled = Cvar_Get( "net_enabled", "1", CVAR_LATCH | CVAR_ARCHIVE );
#else
	/* End users have it enabled so they can connect to ipv6-only hosts, but ipv4 will be
	 * used if available due to ping */
	net_enabled = Cvar_Get( "net_enabled", "3", CVAR_LATCH | CVAR_ARCHIVE );
#endif
	modified = net_enabled->modified;
	net_enabled->modified = qfalse;

	net_ip = Cvar_Get( "net_ip", "0.0.0.0", CVAR_LATCH );
	modified += net_ip->modified;
	net_ip->modified = qfalse;

	net_port = Cvar_Get( "net_port", va( "%i", PORT_SERVER ), CVAR_LATCH );
	modified += net_port->modified;
	net_port->modified = qfalse;

	net_socksEnabled = Cvar_Get( "net_socksEnabled", "0", CVAR_LATCH | CVAR_ARCHIVE );
	modified += net_socksEnabled->modified;
	net_socksEnabled->modified = qfalse;

	net_socksServer = Cvar_Get( "net_socksServer", "", CVAR_LATCH | CVAR_ARCHIVE );
	modified += net_socksServer->modified;
	net_socksServer->modified = qfalse;

	net_socksPort = Cvar_Get( "net_socksPort", "1080", CVAR_LATCH | CVAR_ARCHIVE );
	modified += net_socksPort->modified;
	net_socksPort->modified = qfalse;

	net_socksUsername = Cvar_Get( "net_socksUsername", "", CVAR_LATCH | CVAR_ARCHIVE );
	modified += net_socksUsername->modified;
	net_socksUsername->modified = qfalse;

	net_socksPassword = Cvar_Get( "net_socksPassword", "", CVAR_LATCH | CVAR_ARCHIVE );
	modified += net_socksPassword->modified;
	net_socksPassword->modified = qfalse;

	net_dropsim = Cvar_Get("net_dropsim", "", CVAR_TEMP);

	return modified ? qtrue : qfalse;
}


/*
====================
NET_Config
====================
*/
void NET_Config( qboolean enableNetworking ) {
	qboolean	modified;
	qboolean	stop;
	qboolean	start;

	// get any latched changes to cvars
	modified = NET_GetCvars();

	if( !net_enabled->integer ) {
		enableNetworking = 0;
	}

	// if enable state is the same and no cvars were modified, we have nothing to do
	if( enableNetworking == networkingEnabled && !modified ) {
		return;
	}

	if( enableNetworking == networkingEnabled ) {
		if( enableNetworking ) {
			stop = qtrue;
			start = qtrue;
		}
		else {
			stop = qfalse;
			start = qfalse;
		}
	}
	else {
		if( enableNetworking ) {
			stop = qfalse;
			start = qtrue;
		}
		else {
			stop = qtrue;
			start = qfalse;
		}
		networkingEnabled = enableNetworking;
	}

	if( stop ) {
		if ( ip_socket != INVALID_SOCKET ) {
			closesocket( ip_socket );
			ip_socket = INVALID_SOCKET;
		}

		if ( socks_socket != INVALID_SOCKET ) {
			closesocket( socks_socket );
			socks_socket = INVALID_SOCKET;
		}

	}

	if( start )
	{
		if (net_enabled->integer)
		{
			NET_OpenIP();
		}
	}
}


/*
====================
NET_Init
====================
*/
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static void *net_memory = NULL;
#define NET_INIT_SIZE 1*1024*1024
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void NET_Init( void ) {
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	sceSysmoduleLoadModule(SCE_SYSMODULE_NET);
	SceNetInitParam initparam;
	int ret = sceNetShowNetstat();
	if (ret == SCE_NET_ERROR_ENOTINIT) {
		net_memory = malloc(NET_INIT_SIZE);

		initparam.memory = net_memory;
		initparam.size = NET_INIT_SIZE;
		initparam.flags = 0;

		ret = sceNetInit(&initparam);
		
	} 
	ret = sceNetCtlInit();
	if (ret < 0){
		sceNetTerm();
		free(net_memory);
	}
	
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	NET_Config( qtrue );

	Cmd_AddCommand ("net_restart", NET_Restart_f);
}


/*
====================
NET_Shutdown
====================
*/
void NET_Shutdown( void ) {
	if ( !networkingEnabled ) {
		return;
	}

	NET_Config( qfalse );
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	sceNetCtlTerm();
	sceNetTerm();
	free(net_memory);
	sceSysmoduleUnloadModule(SCE_SYSMODULE_NET);
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}

/*
====================
NET_Event

Called from NET_Sleep which uses select() to determine which sockets have seen action.
====================
*/

void NET_Event(fd_set *fdr)
{
	byte bufData[MAX_MSGLEN + 1];
	netadr_t from = {0};
	msg_t netmsg;

	while(1)
	{
		MSG_Init(&netmsg, bufData, sizeof(bufData));

		if(NET_GetPacket(&from, &netmsg, fdr))
		{
			if(net_dropsim->value > 0.0f && net_dropsim->value <= 100.0f)
			{
				// com_dropsim->value percent of incoming packets get dropped.
				if(rand() < (int) (((double) RAND_MAX) / 100.0 * (double) net_dropsim->value))
					continue;          // drop this packet
			}

			if(com_sv_running->integer)
				Com_RunAndTimeServerPacket(&from, &netmsg);
			else
				CL_PacketEvent(from, &netmsg);
		}
		else
			break;
	}
}

/*
====================
NET_Sleep

Sleeps msec or until something happens on the network
====================
*/
void NET_Sleep(int msec)
{
	struct timeval timeout;
	fd_set fdr;
	int retval;
	SOCKET highestfd = INVALID_SOCKET;

	if(msec < 0)
		msec = 0;

	FD_ZERO(&fdr);

	if(ip_socket != INVALID_SOCKET)
	{
		FD_SET(ip_socket, &fdr);

		highestfd = ip_socket;
	}

	timeout.tv_sec = msec/1000;
	timeout.tv_usec = (msec%1000)*1000;

	retval = select(highestfd + 1, &fdr, NULL, NULL, &timeout);

	if(retval == SOCKET_ERROR)
		Com_Printf("Warning: select() syscall failed: %s\n", NET_ErrorString());
	else if(retval > 0)
		NET_Event(&fdr);
}

/*
====================
NET_Restart_f
====================
*/
void NET_Restart_f(void)
{
	NET_Config(qtrue);
}

void NET_JoinMulticast6(void) {}
void NET_LeaveMulticast6() {}