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fteqw/engine/common/net_wins.c
Spoike a77bd67602 ------------------------------------------------------------------------ 
r4196 | acceptthis | 2013-02-12 19:06:07 +0000 (Tue, 12 Feb 2013) | 9 lines

split in/out client frames, so that we can cope with separate packet/movement sequences for nq+prediction.
Make default ports a little more explicit.
interpolate input frames. should make things smoother when the input rate does not match video rate.
fix centering of crosshairs
make sure skins are flushed properly on vid_restart, so 24bit skins don't get messed up.
keep sounds ticking even when inaudible.
qc addressable block now has a max of 2gb.
.__variant works as a function argument.
NQ clients now receive player physics consistant with QuakeWorld.
------------------------------------------------------------------------


git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4194 fc73d0e0-1445-4013-8a0c-d673dee63da5
2013-03-12 22:53:23 +00:00

4996 lines
116 KiB
C
Raw Blame History

/*
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"
#include "netinc.h"
#ifdef _WIN32
#define USE_GETHOSTNAME_LOCALLISTING
#endif
netadr_t net_local_cl_ipadr; //still used to match local ui requests (quake/gamespy), and to generate ip reports for q3 servers (which is probably pointless).
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_OVERALLMSGLEN];
#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
void NET_GetLocalAddress (int socket, netadr_t *out);
int TCP_OpenListenSocket (int port);
#ifdef HAVE_IPV4
extern cvar_t sv_port_ipv4;
#endif
#ifdef IPPROTO_IPV6
int UDP6_OpenSocket (int port, qboolean bcast);
extern cvar_t sv_port_ipv6;
#endif
#ifdef USEIPX
void IPX_CloseSocket (int socket);
extern cvar_t sv_port_ipx;
#endif
#ifdef TCPCONNECT
extern cvar_t sv_port_tcp;
extern cvar_t sv_port_tcp6;
#endif
cvar_t net_hybriddualstack = CVAR("net_hybriddualstack", "1");
cvar_t net_fakeloss = CVARFD("net_fakeloss", "0", CVAR_CHEAT, "Simulates packetloss in both receiving and sending, on a scale from 0 to 1.");
extern cvar_t sv_public, sv_listen_qw, sv_listen_nq, sv_listen_dp, sv_listen_q3;
static qboolean allowconnects = false;
#define MAX_LOOPBACK 8
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];
//=============================================================================
int NetadrToSockadr (netadr_t *a, struct sockaddr_qstorage *s)
{
switch(a->type)
{
#ifdef HAVE_WEBSOCKCL
case NA_WEBSOCKET:
memset (s, 0, sizeof(struct sockaddr_websocket));
((struct sockaddr_websocket*)s)->sws_family = AF_WEBSOCK;
memcpy(((struct sockaddr_websocket*)s)->url, a->address.websocketurl, sizeof(((struct sockaddr_websocket*)s)->url));
return sizeof(struct sockaddr_websocket);
#endif
#ifdef HAVE_IPV4
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;
return sizeof(struct sockaddr_in);
case NA_TCP:
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->address.ip;
((struct sockaddr_in*)s)->sin_port = a->port;
return sizeof(struct sockaddr_in);
#endif
#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;
return sizeof(struct sockaddr_in6);
case NA_TCPV6:
case NA_IPV6:
memset (s, 0, sizeof(struct sockaddr_in6));
((struct sockaddr_in6*)s)->sin6_family = AF_INET6;
memcpy(&((struct sockaddr_in6*)s)->sin6_addr, a->address.ip6, sizeof(struct in6_addr));
((struct sockaddr_in6*)s)->sin6_port = a->port;
return sizeof(struct sockaddr_in6);
#endif
#ifdef USEIPX
case NA_IPX:
((struct sockaddr_ipx *)s)->sa_family = AF_IPX;
memcpy(((struct sockaddr_ipx *)s)->sa_netnum, &a->address.ipx[0], 4);
memcpy(((struct sockaddr_ipx *)s)->sa_nodenum, &a->address.ipx[4], 6);
((struct sockaddr_ipx *)s)->sa_socket = a->port;
return sizeof(struct sockaddr_ipx);
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;
return sizeof(struct sockaddr_ipx);
#endif
default:
Sys_Error("Bad type - needs fixing");
return 0;
}
}
void SockadrToNetadr (struct sockaddr_qstorage *s, netadr_t *a)
{
a->connum = 0;
switch (((struct sockaddr*)s)->sa_family)
{
#ifdef HAVE_WEBSOCKCL
case AF_WEBSOCK:
a->type = NA_WEBSOCKET;
memcpy(a->address.websocketurl, ((struct sockaddr_websocket*)s)->url, sizeof(a->address.websocketurl));
a->port = 0;
break;
#endif
#ifdef HAVE_IPV4
case AF_INET:
a->type = NA_IP;
*(int *)&a->address.ip = ((struct sockaddr_in *)s)->sin_addr.s_addr;
a->port = ((struct sockaddr_in *)s)->sin_port;
break;
#endif
#ifdef IPPROTO_IPV6
case AF_INET6:
a->type = NA_IPV6;
memcpy(&a->address.ip6, &((struct sockaddr_in6 *)s)->sin6_addr, sizeof(a->address.ip6));
a->port = ((struct sockaddr_in6 *)s)->sin6_port;
break;
#endif
#ifdef USEIPX
case AF_IPX:
a->type = NA_IPX;
*(int *)a->address.ip = 0xffffffff;
memcpy(&a->address.ipx[0], ((struct sockaddr_ipx *)s)->sa_netnum, 4);
memcpy(&a->address.ipx[4], ((struct sockaddr_ipx *)s)->sa_nodenum, 6);
a->port = ((struct sockaddr_ipx *)s)->sa_socket;
break;
#endif
default:
Con_Printf("SockadrToNetadr: bad socket family - %i", ((struct sockaddr*)s)->sa_family);
case AF_UNSPEC:
memset(a, 0, sizeof(*a));
a->type = NA_INVALID;
break;
}
}
qboolean NET_CompareAdr (netadr_t a, netadr_t b)
{
if (a.type != b.type)
return false;
if (a.type == NA_LOOPBACK)
return true;
#ifdef HAVE_WEBSOCKCL
if (a.type == NA_WEBSOCKET)
{
if (!strcmp(a.address.websocketurl, a.address.websocketurl) && a.port == b.port)
return true;
return false;
}
#endif
#ifdef HAVE_IPV4
if (a.type == NA_IP || a.type == NA_BROADCAST_IP || a.type == NA_TCP)
{
if ((memcmp(a.address.ip, b.address.ip, sizeof(a.address.ip)) == 0) && a.port == b.port)
return true;
return false;
}
#endif
#ifdef IPPROTO_IPV6
if (a.type == NA_IPV6 || a.type == NA_BROADCAST_IP6 || a.type == NA_TCPV6)
{
if ((memcmp(a.address.ip6, b.address.ip6, sizeof(a.address.ip6)) == 0) && a.port == b.port)
return true;
return false;
}
#endif
#ifdef USEIPX
if (a.type == NA_IPX || a.type == NA_BROADCAST_IPX)
{
if ((memcmp(a.address.ipx, b.address.ipx, sizeof(a.address.ipx)) == 0) && a.port == b.port)
return true;
return false;
}
#endif
#ifdef IRCCONNECT
if (a.type == NA_IRC)
{
if (!strcmp(a.address.irc.user, b.address.irc.user))
return true;
return false;
}
#endif
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;
#ifdef HAVE_IPV4
if (a.type == NA_IP || a.type == NA_TCP)
{
if ((memcmp(a.address.ip, b.address.ip, sizeof(a.address.ip)) == 0))
return true;
return false;
}
#endif
#ifdef IPPROTO_IPV6
if (a.type == NA_IPV6 || a.type == NA_BROADCAST_IP6)
{
if ((memcmp(a.address.ip6, b.address.ip6, 16) == 0))
return true;
return false;
}
#endif
#ifdef USEIPX
if (a.type == NA_IPX)
{
if ((memcmp(a.address.ipx, b.address.ipx, 10) == 0))
return true;
return false;
}
#endif
#ifdef IRCCONNECT
if (a.type == NA_IRC)
{
if (!strcmp(a.address.irc.user, b.address.irc.user))
return true;
return false;
}
#endif
Sys_Error("NET_CompareBaseAdr: Bad address type");
return false;
}
qboolean NET_AddressSmellsFunny(netadr_t a)
{
#ifdef IPPROTO_IPV6
int i;
#endif
//rejects certain blacklisted addresses
switch(a.type)
{
#ifdef HAVE_IPV4
case NA_BROADCAST_IP:
case NA_IP:
//reject localhost
if (a.address.ip[0] == 127)// && a.address.ip[1] == 0 && a.address.ip[2] == 0 && a.address.ip[3] == 1 )
return true;
//'this' network (not an issue, but lets reject it anyway)
if (a.address.ip[0] == 0 && a.address.ip[1] == 0 && a.address.ip[2] == 0 && a.address.ip[3] == 0 )
return true;
//reject any broadcasts
if (a.address.ip[0] == 255 && a.address.ip[1] == 255 && a.address.ip[2] == 255 && a.address.ip[3] == 0 )
return true;
//not much else I can reject
return false;
#endif
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
//reject [::XXXX] (this includes obsolete ipv4-compatible (not ipv4 mapped), and localhost)
for (i = 0; i < 12; i++)
if (a.address.ip6[i])
break;
if (i == 12)
return true;
return false;
#endif
#ifdef USEIPX
//no idea how this protocol's addresses work
case NA_BROADCAST_IPX:
case NA_IPX:
return false;
#endif
case NA_LOOPBACK:
return false;
default:
return true;
}
}
char *NET_AdrToString (char *s, int len, netadr_t a)
{
char *rs = s;
char *p;
int i;
#ifdef IPPROTO_IPV6
qboolean doneblank;
#endif
switch(a.type)
{
#ifdef HAVE_WEBSOCKCL
case NA_WEBSOCKET:
Q_strncpyz(s, a.address.websocketurl, len);
break;
#endif
#ifdef TCPCONNECT
case NA_TCP:
if (len < 7)
return "?";
snprintf (s, len, "tcp://");
s += 6;
len -= 6;
//fallthrough
#endif
#ifdef HAVE_IPV4
case NA_BROADCAST_IP:
case NA_IP:
if (a.port)
{
snprintf (s, len, "%i.%i.%i.%i:%i",
a.address.ip[0],
a.address.ip[1],
a.address.ip[2],
a.address.ip[3],
ntohs(a.port));
}
else
{
snprintf (s, len, "%i.%i.%i.%i",
a.address.ip[0],
a.address.ip[1],
a.address.ip[2],
a.address.ip[3]);
}
break;
#endif
#ifdef TCPCONNECT
case NA_TCPV6:
if (len < 7)
return "?";
snprintf (s, len, "tcp://");
s += 6;
len -= 6;
//fallthrough
#endif
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
if (!*(int*)&a.address.ip6[0] &&
!*(int*)&a.address.ip6[4] &&
!*(short*)&a.address.ip6[8] &&
*(short*)&a.address.ip6[10] == (short)0xffff)
{
if (a.port)
snprintf (s, len, "%i.%i.%i.%i:%i",
a.address.ip6[12],
a.address.ip6[13],
a.address.ip6[14],
a.address.ip6[15],
ntohs(a.port));
else
snprintf (s, len, "%i.%i.%i.%i",
a.address.ip6[12],
a.address.ip6[13],
a.address.ip6[14],
a.address.ip6[15]);
break;
}
*s = 0;
doneblank = false;
p = s;
snprintf (s, len-strlen(s), "[");
p += strlen(p);
for (i = 0; i < 16; i+=2)
{
if (doneblank!=true && a.address.ip6[i] == 0 && a.address.ip6[i+1] == 0)
{
if (!doneblank)
{
snprintf (p, len-strlen(s), "::");
p += strlen(p);
doneblank = 2;
}
}
else
{
if (doneblank==2)
doneblank = true;
else if (i != 0)
{
snprintf (p, len-strlen(s), ":");
p += strlen(p);
}
if (a.address.ip6[i+0])
{
snprintf (p, len-strlen(s), "%x%02x",
a.address.ip6[i+0],
a.address.ip6[i+1]);
}
else
{
snprintf (p, len-strlen(s), "%x",
a.address.ip6[i+1]);
}
p += strlen(p);
}
}
snprintf (p, len-strlen(s), "]:%i",
ntohs(a.port));
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
snprintf (s, len, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x:%i",
a.address.ipx[0],
a.address.ipx[1],
a.address.ipx[2],
a.address.ipx[3],
a.address.ipx[4],
a.address.ipx[5],
a.address.ipx[6],
a.address.ipx[7],
a.address.ipx[8],
a.address.ipx[9],
ntohs(a.port));
break;
#endif
case NA_LOOPBACK:
snprintf (s, len, "QLoopBack");
break;
#ifdef IRCCONNECT
case NA_IRC:
if (*a.address.irc.channel)
snprintf (s, len, "irc://%s@%s", a.address.irc.user, a.address.irc.channel);
else
snprintf (s, len, "irc://%s", a.address.irc.user);
break;
#endif
default:
snprintf (s, len, "invalid netadr_t type");
// Sys_Error("NET_AdrToString: Bad netadr_t type");
}
return rs;
}
char *NET_BaseAdrToString (char *s, int len, netadr_t a)
{
int i, doneblank;
char *p;
switch(a.type)
{
case NA_BROADCAST_IP:
case NA_IP:
snprintf (s, len, "%i.%i.%i.%i",
a.address.ip[0],
a.address.ip[1],
a.address.ip[2],
a.address.ip[3]);
break;
case NA_TCP:
snprintf (s, len, "tcp://%i.%i.%i.%i",
a.address.ip[0],
a.address.ip[1],
a.address.ip[2],
a.address.ip[3]);
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
if (!*(int*)&a.address.ip6[0] &&
!*(int*)&a.address.ip6[4] &&
!*(short*)&a.address.ip6[8] &&
*(short*)&a.address.ip6[10] == (short)0xffff)
{
snprintf (s, len, "%i.%i.%i.%i",
a.address.ip6[12],
a.address.ip6[13],
a.address.ip6[14],
a.address.ip6[15]);
break;
}
*s = 0;
doneblank = false;
p = s;
for (i = 0; i < 16; i+=2)
{
if (doneblank!=true && a.address.ip6[i] == 0 && a.address.ip6[i+1] == 0)
{
if (!doneblank)
{
snprintf (p, len-strlen(s), "::");
p += strlen(p);
doneblank = 2;
}
}
else
{
if (doneblank==2)
doneblank = true;
else if (i != 0)
{
snprintf (p, len-strlen(s), ":");
p += strlen(p);
}
if (a.address.ip6[i+0])
{
snprintf (p, len-strlen(s), "%x%02x",
a.address.ip6[i+0],
a.address.ip6[i+1]);
}
else
{
snprintf (p, len-strlen(s), "%x",
a.address.ip6[i+1]);
}
p += strlen(p);
}
}
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
snprintf (s, len, "%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x",
a.address.ipx[0],
a.address.ipx[1],
a.address.ipx[2],
a.address.ipx[3],
a.address.ipx[4],
a.address.ipx[5],
a.address.ipx[6],
a.address.ipx[7],
a.address.ipx[8],
a.address.ipx[9]);
break;
#endif
case NA_LOOPBACK:
snprintf (s, len, "LocalHost");
break;
#ifdef IRCCONNECT
case NA_IRC:
snprintf (s, len, "irc://%s", a.address.irc.user);
break;
#endif
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.
=============
*/
qboolean NET_StringToSockaddr (const char *s, int defaultport, struct sockaddr_qstorage *sadr, int *addrfamily, int *addrsize)
{
struct hostent *h;
char *colon;
char copy[128];
if (!(*s))
return false;
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;
#define DO(src,dest) \
copy[0] = s[src]; \
copy[1] = s[src + 1]; \
sscanf (copy, "%x", &val); \
((struct sockaddr_ipx *)sadr)->dest = val
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);
#undef DO
((struct sockaddr_ipx *)sadr)->sa_socket = htons((unsigned short)val);
if (addrfamily)
*addrfamily = AF_IPX;
if (addrsize)
*addrsize = sizeof(struct sockaddr_ipx);
}
else
#endif
#ifdef IPPROTO_IPV6
if (pgetaddrinfo)
{
struct addrinfo *addrinfo = NULL;
struct addrinfo *pos;
struct addrinfo udp6hint;
int error;
char *port;
char dupbase[256];
int len;
memset(&udp6hint, 0, sizeof(udp6hint));
udp6hint.ai_family = 0;//Any... we check for AF_INET6 or 4
udp6hint.ai_socktype = SOCK_DGRAM;
udp6hint.ai_protocol = IPPROTO_UDP;
if (*s == '[')
{
port = strstr(s, "]");
if (!port)
error = EAI_NONAME;
else
{
len = port - (s+1);
if (len >= sizeof(dupbase))
len = sizeof(dupbase)-1;
strncpy(dupbase, s+1, len);
dupbase[len] = '\0';
error = pgetaddrinfo(dupbase, (port[1] == ':')?port+2:NULL, &udp6hint, &addrinfo);
}
}
else
{
port = strrchr(s, ':');
if (port)
{
len = port - s;
if (len >= sizeof(dupbase))
len = sizeof(dupbase)-1;
strncpy(dupbase, s, len);
dupbase[len] = '\0';
error = pgetaddrinfo(dupbase, port+1, &udp6hint, &addrinfo);
}
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;
}
((struct sockaddr*)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...
//fallthrough
#ifdef HAVE_IPV4
case AF_INET:
memcpy(sadr, pos->ai_addr, pos->ai_addrlen);
if (pos->ai_family == AF_INET)
goto dblbreak; //don't try finding any more, this is quake, they probably prefer ip4...
break;
#else
memcpy(sadr, pos->ai_addr, pos->ai_addrlen);
goto dblbreak;
#endif
}
}
dblbreak:
pfreeaddrinfo (addrinfo);
if (!((struct sockaddr*)sadr)->sa_family) //none suitablefound
return false;
if (addrfamily)
*addrfamily = ((struct sockaddr*)sadr)->sa_family;
if (((struct sockaddr*)sadr)->sa_family == AF_INET)
{
if (!((struct sockaddr_in *)sadr)->sin_port)
((struct sockaddr_in *)sadr)->sin_port = htons(defaultport);
if (addrsize)
*addrsize = sizeof(struct sockaddr_in);
}
else
{
if (!((struct sockaddr_in6 *)sadr)->sin6_port)
((struct sockaddr_in6 *)sadr)->sin6_port = htons(defaultport);
if (addrsize)
*addrsize = sizeof(struct sockaddr_in6);
}
}
else
#endif
{
#ifdef HAVE_IPV4
((struct sockaddr_in *)sadr)->sin_family = AF_INET;
((struct sockaddr_in *)sadr)->sin_port = 0;
if (strlen(s) >= sizeof(copy)-1)
return false;
((struct sockaddr_in *)sadr)->sin_port = htons(defaultport);
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 false;
if (h->h_addrtype != AF_INET)
return false;
*(int *)&((struct sockaddr_in *)sadr)->sin_addr = *(int *)h->h_addr_list[0];
}
if (addrfamily)
*addrfamily = AF_INET;
if (addrsize)
*addrsize = sizeof(struct sockaddr_in);
#else
return false;
#endif
}
return true;
}
/*
accepts anything that NET_StringToSockaddr accepts plus certain url schemes
including: tcp, irc
*/
qboolean NET_StringToAdr (const char *s, int defaultport, netadr_t *a)
{
struct sockaddr_qstorage sadr;
Con_DPrintf("Resolving address: %s\n", s);
if (!strcmp (s, "internalserver"))
{
memset (a, 0, sizeof(*a));
a->type = NA_LOOPBACK;
return true;
}
#ifdef HAVE_WEBSOCKCL
if (!strncmp (s, "ws://", 5) || !strncmp (s, "wss://", 6))
{
memset (a, 0, sizeof(*a));
a->type = NA_WEBSOCKET;
Q_strncpyz(a->address.websocketurl, s, sizeof(a->address.websocketurl));
return true;
}
else
{
/*code for convienience - no other protocols work anyway*/
static qboolean warned;
if (!warned)
{
Con_Printf("Note: Native client builds can only connect to websocket servers.\n");
warned = true;
}
memset (a, 0, sizeof(*a));
a->type = NA_WEBSOCKET;
memcpy(a->address.websocketurl, "ws://", 5);
Q_strncpyz(a->address.websocketurl+5, s, sizeof(a->address.websocketurl)-5);
return true;
}
#endif
#ifdef TCPCONNECT
if (!strncmp (s, "tcp://", 6))
{
//make sure that the rest of the address is a valid ip address (4 or 6)
if (!NET_StringToSockaddr (s+6, 0, &sadr, NULL, NULL))
{
a->type = NA_INVALID;
return false;
}
SockadrToNetadr (&sadr, a);
if (a->type == NA_IP)
{
a->type = NA_TCP;
return true;
}
if (a->type == NA_IPV6)
{
a->type = NA_TCPV6;
return true;
}
return false;
}
#endif
#ifdef IRCCONNECT
if (!strncmp (s, "irc://", 6))
{
char *at;
memset (a, 0, sizeof(*a));
a->type = NA_IRC;
s+=6;
at = strchr(s, '@');
if (at)
{
if (at-s+1 >= sizeof(a->address.irc.user))
return false;
Q_strncpyz(a->address.irc.user, s, at-s+1);
Q_strncpyz(a->address.irc.channel, at+1, sizeof(a->address.irc.channel));
}
else
{
//just a user.
Q_strncpyz(a->address.irc.user, s, sizeof(a->address.irc.user));
}
return true;
}
#endif
if (!NET_StringToSockaddr (s, 0, &sadr, NULL, NULL))
{
a->type = NA_INVALID;
return false;
}
SockadrToNetadr (&sadr, a);
return true;
}
// NET_IntegerToMask: given a source address pointer, a mask address pointer, and
// desired number of bits, fills the mask pointer with given bits
// (bits < 0 will always fill all bits)
void NET_IntegerToMask (netadr_t *a, netadr_t *amask, int bits)
{
unsigned int i;
qbyte *n;
memset (amask, 0, sizeof(*amask));
amask->type = a->type;
if (bits < 0)
i = 8000; // fill all bits
else
i = bits;
switch (amask->type)
{
case NA_INVALID:
break;
case NA_IP:
case NA_BROADCAST_IP:
n = amask->address.ip;
if (i > 32)
i = 32;
for (; i >= 8; i -= 8)
{
*n = 0xFF;
n++;
}
// fill last bit
if (i)
{
i = 8 - i;
i = 255 - ((1 << i) - 1);
*n = i;
}
break;
case NA_IPV6:
case NA_BROADCAST_IP6:
#ifdef IPPROTO_IPV6
n = amask->address.ip6;
if (i > 128)
i = 128;
for (; i >= 8; i -= 8)
{
*n = 0xFF;
n++;
}
// fill last bit
if (i)
{
i = 8 - i;
i = 255 - ((1 << i) - 1);
*n = i;
}
#endif
break;
case NA_IPX:
case NA_BROADCAST_IPX:
#ifdef USEIPX
n = amask->address.ipx;
if (i > 80)
i = 80;
for (; i >= 8; i -= 8)
{
*n = 0xFF;
n++;
}
// fill last bit
if (i)
{
i = 8 - i;
i = 255 - ((1 << i) - 1);
*n = i;
}
#endif
break;
case NA_LOOPBACK:
break;
// warning: enumeration value <20>NA_*<2A> not handled in switch
case NA_WEBSOCKET:
case NA_TCP:
case NA_TCPV6:
case NA_IRC:
break;
}
}
// ParsePartialIPv4: check string to see if it is a partial IPv4 address and
// return bits to mask and set netadr_t or 0 if not an address
int ParsePartialIPv4(const char *s, netadr_t *a)
{
const char *colon = NULL;
char *address = a->address.ip;
int bits = 8;
if (!*s)
return 0;
memset (a, 0, sizeof(*a));
while (*s)
{
if (*s == ':')
{
if (colon) // only 1 colon
return 0;
colon = s + 1;
}
else if (*s == '.')
{
if (colon) // no colons before periods (probably invalid anyway)
return 0;
else if (bits >= 32) // only 32 bits in ipv4
return 0;
else if (*(s+1) == '.')
return 0;
else if (*(s+1) == '\0')
break; // don't add more bits to the mask for x.x., etc
bits += 8;
address++;
}
else if (*s >= '0' && *s <= '9')
*address = ((*address)*10) + (*s-'0');
else
return 0; // invalid character
s++;
}
a->type = NA_IP;
if (colon)
a->port = atoi(colon);
return bits;
}
// NET_StringToAdrMasked: extension to NET_StringToAdr to handle IP addresses
// with masks or integers representing the bit masks
qboolean NET_StringToAdrMasked (const char *s, netadr_t *a, netadr_t *amask)
{
char t[64];
char *spoint;
int i;
spoint = strchr(s, '/');
if (spoint)
{
// we have a slash in the address so split and resolve separately
char *c;
i = (int)(spoint - s) + 1;
if (i > sizeof(t))
i = sizeof(t);
Q_strncpyz(t, s, i);
if (!ParsePartialIPv4(t, a) && !NET_StringToAdr(t, 0, a))
return false;
spoint++;
c = spoint;
if (!*c)
return false;
while (*c) // check for non-numeric characters
{
if (*c < '0' || *c > '9')
{
c = NULL;
break;
}
c++;
}
if (c == NULL) // we have an address so resolve it and return
return ParsePartialIPv4(spoint, amask) || NET_StringToAdr(spoint, 0, amask);
// otherwise generate mask for given bits
i = atoi(spoint);
NET_IntegerToMask(a, amask, i);
}
else
{
// we don't have a slash, resolve and fill with a full mask
i = ParsePartialIPv4(s, a);
if (!i && !NET_StringToAdr(s, 0, a))
return false;
memset (amask, 0, sizeof(*amask));
amask->type = a->type;
if (i)
NET_IntegerToMask(a, amask, i);
else
NET_IntegerToMask(a, amask, -1);
}
return true;
}
// NET_CompareAdrMasked: given 3 addresses, 2 to compare with a complimentary mask,
// returns true or false if they match
qboolean NET_CompareAdrMasked(netadr_t a, netadr_t b, netadr_t mask)
{
int i;
//make sure the address being checked against matches the mask
if (b.type != mask.type)
return false;
// check port if both are non-zero
if (a.port && b.port && a.port != b.port)
return false;
// check to make sure all types match
if (a.type != b.type)
{
if (a.type == NA_IP && b.type == NA_IPV6 && mask.type == NA_IP)
{
for (i = 0; i < 10; i++)
if (b.address.ip6[i] != 0)
return false; //only matches if they're 0s, otherwise its not an ipv4 address there
for (; i < 12; i++)
if (b.address.ip6[i] != 0xff && b.address.ip6[i] != 0x00) //0x00 is depricated
return false; //only matches if they're 0s or ffs, otherwise its not an ipv4 address there
for (i = 0; i < 4; i++)
{
if ((a.address.ip[i] & mask.address.ip[i]) != (b.address.ip6[12+i] & mask.address.ip[i]))
return false; //mask doesn't match
}
return true; //its an ipv4 address in there, the mask matched the whole way through
}
if (a.type == NA_IPV6 && b.type == NA_IP && mask.type == NA_IP)
{
for (i = 0; i < 10; i++)
if (a.address.ip6[i] != 0)
return false; //only matches if they're 0s, otherwise its not an ipv4 address there
for (; i < 12; i++)
if (a.address.ip6[i] != 0xff && a.address.ip6[i] != 0x00) //0x00 is depricated
return false; //only matches if they're 0s or ffs, otherwise its not an ipv4 address there
for (i = 0; i < 4; i++)
{
if ((a.address.ip6[12+i] & mask.address.ip[i]) != (b.address.ip[i] & mask.address.ip[i]))
return false; //mask doesn't match
}
return true; //its an ipv4 address in there, the mask matched the whole way through
}
return false;
}
// match on protocol type and compare address
switch (a.type)
{
case NA_LOOPBACK:
return true;
case NA_BROADCAST_IP:
case NA_IP:
for (i = 0; i < 4; i++)
{
if ((a.address.ip[i] & mask.address.ip[i]) != (b.address.ip[i] & mask.address.ip[i]))
return false;
}
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
for (i = 0; i < 16; i++)
{
if ((a.address.ip6[i] & mask.address.ip6[i]) != (b.address.ip6[i] & mask.address.ip6[i]))
return false;
}
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
for (i = 0; i < 10; i++)
{
if ((a.address.ipx[i] & mask.address.ipx[i]) != (b.address.ipx[i] & mask.address.ipx[i]))
return false;
}
break;
#endif
#ifdef IRCCONNECT
case NA_IRC:
//masks are not supported, match explicitly
if (strcmp(a.address.irc.user, b.address.irc.user))
return false;
break;
#endif
default:
return false; // invalid protocol
}
return true; // all checks passed
}
// UniformMaskedBits: counts number of bits in an assumed uniform mask, returns
// -1 if not uniform
int UniformMaskedBits(netadr_t mask)
{
int bits;
int b;
unsigned int bs;
qboolean bitenc = false;
switch (mask.type)
{
case NA_BROADCAST_IP:
case NA_IP:
bits = 32;
for (b = 3; b >= 0; b--)
{
if (mask.address.ip[b] == 0xFF)
bitenc = true;
else if (mask.address.ip[b])
{
bs = (~mask.address.ip[b]) & 0xFF;
while (bs)
{
if (bs & 1)
{
bits -= 1;
if (bitenc)
return -1;
}
else
bitenc = true;
bs >>= 1;
}
}
else if (bitenc)
return -1;
else
bits -= 8;
}
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
bits = 128;
for (b = 15; b >= 0; b--)
{
if (mask.address.ip6[b] == 0xFF)
bitenc = true;
else if (mask.address.ip6[b])
{
bs = (~mask.address.ip6[b]) & 0xFF;
while (bs)
{
if (bs & 1)
{
bits -= 1;
if (bitenc)
return -1;
}
else
bitenc = true;
bs >>= 1;
}
}
else if (bitenc)
return -1;
else
bits -= 8;
}
break;
#endif
#ifdef USEIPX
case NA_BROADCAST_IPX:
case NA_IPX:
bits = 80;
for (b = 9; b >= 0; b--)
{
if (mask.address.ipx[b] == 0xFF)
bitenc = true;
else if (mask.address.ipx[b])
{
bs = (~mask.address.ipx[b]) & 0xFF;
while (bs)
{
if (bs & 1)
{
bits -= 1;
if (bitenc)
return -1;
}
else
bitenc = true;
bs >>= 1;
}
}
else if (bitenc)
return -1;
else
bits -= 8;
}
break;
#endif
default:
return -1; // invalid protocol
}
return bits; // all checks passed
}
char *NET_AdrToStringMasked (char *s, int len, netadr_t a, netadr_t amask)
{
int i;
char adr[MAX_ADR_SIZE], mask[MAX_ADR_SIZE];
i = UniformMaskedBits(amask);
if (i >= 0)
snprintf(s, len, "%s/%i", NET_AdrToString(adr, sizeof(adr), a), i);
else
snprintf(s, len, "%s/%s", NET_AdrToString(adr, sizeof(adr), a), NET_AdrToString(mask, sizeof(mask), amask));
return s;
}
// 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)) == INVALID_SOCKET)
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)
{
extern cvar_t showdrop;
if (showdrop.ival)
Con_Printf("loopback dropping %i packets\n", (loop->send - MAX_LOOPBACK) - loop->get);
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;
message->packing = SZ_RAWBYTES;
message->currentbit = 0;
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;
}
//=============================================================================
#define FTENET_ADDRTYPES 2
typedef struct ftenet_generic_connection_s {
const char *name;
int (*GetLocalAddress)(struct ftenet_generic_connection_s *con, netadr_t *local, int adridx);
qboolean (*ChangeLocalAddress)(struct ftenet_generic_connection_s *con, const char *newaddress);
qboolean (*GetPacket)(struct ftenet_generic_connection_s *con);
qboolean (*SendPacket)(struct ftenet_generic_connection_s *con, int length, void *data, netadr_t to);
void (*Close)(struct ftenet_generic_connection_s *con);
#ifdef HAVE_PACKET
int (*SetReceiveFDSet) (struct ftenet_generic_connection_s *con, fd_set *fdset); /*set for connections which have multiple sockets (ie: listening tcp connections)*/
#endif
netadrtype_t addrtype[FTENET_ADDRTYPES];
qboolean islisten;
int thesocket;
} ftenet_generic_connection_t;
#define MAX_CONNECTIONS 8
typedef struct ftenet_connections_s {
qboolean islisten;
ftenet_generic_connection_t *conn[MAX_CONNECTIONS];
} ftenet_connections_t;
ftenet_connections_t *FTENET_CreateCollection(qboolean listen)
{
ftenet_connections_t *col;
col = Z_Malloc(sizeof(*col));
col->islisten = listen;
return col;
}
qboolean FTENET_AddToCollection(ftenet_connections_t *col, const char *name, const char *address, ftenet_generic_connection_t *(*establish)(qboolean isserver, const char *address), qboolean islisten)
{
int count = 0;
int i;
if (!col)
return false;
if (name)
{
for (i = 0; i < MAX_CONNECTIONS; i++)
{
if (col->conn[i])
if (col->conn[i]->name && !strcmp(col->conn[i]->name, name))
{
if (address && *address)
if (col->conn[i]->ChangeLocalAddress)
{
if (col->conn[i]->ChangeLocalAddress(col->conn[i], address))
return true;
}
col->conn[i]->Close(col->conn[i]);
col->conn[i] = NULL;
}
}
}
if (address && *address)
{
for (i = 0; i < MAX_CONNECTIONS; i++)
{
if (!col->conn[i])
{
address = COM_Parse(address);
col->conn[i] = establish(islisten, com_token);
if (!col->conn[i])
break;
col->conn[i]->name = name;
count++;
if (address && *address)
continue;
break;
}
}
}
return count > 0;
}
void FTENET_CloseCollection(ftenet_connections_t *col)
{
int i;
if (!col)
return;
for (i = 0; i < MAX_CONNECTIONS; i++)
{
if (col->conn[i])
{
col->conn[i]->Close(col->conn[i]);
}
}
Z_Free(col);
}
void FTENET_Generic_Close(ftenet_generic_connection_t *con)
{
#ifdef HAVE_PACKET
if (con->thesocket != INVALID_SOCKET)
closesocket(con->thesocket);
#endif
Z_Free(con);
}
#if !defined(CLIENTONLY) && !defined(SERVERONLY)
int FTENET_Loop_GetLocalAddress(ftenet_generic_connection_t *con, netadr_t *out, int adrnum)
{
if (adrnum==0)
{
out->type = NA_LOOPBACK;
out->port = con->islisten+1;
}
return 1;
}
qboolean FTENET_Loop_GetPacket(ftenet_generic_connection_t *con)
{
return NET_GetLoopPacket(con->islisten, &net_from, &net_message);
}
qboolean FTENET_Loop_SendPacket(ftenet_generic_connection_t *con, int length, void *data, netadr_t to)
{
if (to.type == NA_LOOPBACK)
{
NET_SendLoopPacket(con->islisten, length, data, to);
return true;
}
return false;
}
ftenet_generic_connection_t *FTENET_Loop_EstablishConnection(qboolean isserver, const char *address)
{
ftenet_generic_connection_t *newcon;
newcon = Z_Malloc(sizeof(*newcon));
if (newcon)
{
newcon->name = "Loopback";
newcon->GetLocalAddress = FTENET_Loop_GetLocalAddress;
newcon->GetPacket = FTENET_Loop_GetPacket;
newcon->SendPacket = FTENET_Loop_SendPacket;
newcon->Close = FTENET_Generic_Close;
newcon->islisten = isserver;
newcon->addrtype[0] = NA_LOOPBACK;
newcon->addrtype[1] = NA_INVALID;
newcon->thesocket = INVALID_SOCKET;
}
return newcon;
}
#endif
int FTENET_Generic_GetLocalAddress(ftenet_generic_connection_t *con, netadr_t *out, int count)
{
#ifndef HAVE_PACKET
return 0;
#else
struct sockaddr_qstorage from;
int fromsize = sizeof(from);
netadr_t adr;
char adrs[MAX_ADR_SIZE];
int b;
int idx = 0;
if (getsockname (con->thesocket, (struct sockaddr*)&from, &fromsize) != -1)
{
memset(&adr, 0, sizeof(adr));
SockadrToNetadr(&from, &adr);
#ifdef USE_GETHOSTNAME_LOCALLISTING
if (adr.type == NA_IPV6 &&
!*(int*)&adr.address.ip6[0] &&
!*(int*)&adr.address.ip6[4] &&
!*(short*)&adr.address.ip6[8] &&
*(short*)&adr.address.ip6[10]==(short)0xffff &&
!*(int*)&adr.address.ip6[12])
{
/*ipv4-mapped address ANY, pretend we read blank*/
b = sizeof(adr.address);
}
else
{
for (b = 0; b < sizeof(adr.address); b++)
if (((unsigned char*)&adr.address)[b] != 0)
break;
}
if (b == sizeof(adr.address))
{
gethostname(adrs, sizeof(adrs));
#ifdef IPPROTO_IPV6
if (pgetaddrinfo)
{
struct addrinfo hints, *result, *itr;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = 0; /* Allow IPv4 or IPv6 */
hints.ai_socktype = SOCK_DGRAM; /* Datagram socket */
hints.ai_flags = 0;
hints.ai_protocol = 0; /* Any protocol */
if (pgetaddrinfo(adrs, NULL, &hints, &result) != 0)
{
if (idx++ == count)
*out = adr;
}
else
{
for (itr = result; itr; itr = itr->ai_next)
{
if (itr->ai_addr->sa_family != ((struct sockaddr_in*)&from)->sin_family)
{
#ifdef IPV6_V6ONLY
if (((struct sockaddr_in*)&from)->sin_family == AF_INET6 && itr->ai_addr->sa_family == AF_INET)
{
int ipv6only = true;
int optlen = sizeof(ipv6only);
getsockopt(con->thesocket, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&ipv6only, &optlen);
if (ipv6only)
continue;
}
else
#endif
continue;
}
if (itr->ai_addr->sa_family == AF_INET
|| itr->ai_addr->sa_family == AF_INET6
#ifdef USEIPX
|| itr->ai_addr->sa_family == AF_IPX
#endif
)
if (idx++ == count)
{
SockadrToNetadr((struct sockaddr_qstorage*)itr->ai_addr, out);
out->port = ((struct sockaddr_in*)&from)->sin_port;
}
}
pfreeaddrinfo(result);
/*if none found, fill in the 0.0.0.0 or whatever*/
if (!idx)
{
idx++;
*out = adr;
}
}
}
else
#endif
{
struct hostent *h;
h = gethostbyname(adrs);
b = 0;
#ifdef HAVE_IPV4
if(h && h->h_addrtype == AF_INET)
{
for (b = 0; h->h_addr_list[b]; b++)
{
((struct sockaddr_in*)&from)->sin_family = AF_INET;
memcpy(&((struct sockaddr_in*)&from)->sin_addr, h->h_addr_list[b], sizeof(((struct sockaddr_in*)&from)->sin_addr));
SockadrToNetadr(&from, &adr);
if (idx++ == count)
*out = adr;
}
}
#endif
#ifdef IPPROTO_IPV6
if(h && h->h_addrtype == AF_INET6)
{
for (b = 0; h->h_addr_list[b]; b++)
{
((struct sockaddr_in*)&from)->sin_family = AF_INET6;
memcpy(&((struct sockaddr_in6*)&from)->sin6_addr, h->h_addr_list[b], sizeof(((struct sockaddr_in6*)&from)->sin6_addr));
SockadrToNetadr(&from, &adr);
if (idx++ == count)
*out = adr;
}
}
#endif
if (b == 0)
{
if (idx++ == count)
*out = adr;
}
}
}
else
#endif
{
if (adr.type == NA_IPV6 &&
!*(int*)&adr.address.ip6[0] &&
!*(int*)&adr.address.ip6[4] &&
!*(int*)&adr.address.ip6[8] &&
!*(int*)&adr.address.ip6[12])
{
if (idx++ == count)
{
*out = adr;
out->type = NA_IP;
}
}
if (idx++ == count)
*out = adr;
}
}
return idx;
#endif
}
qboolean FTENET_Generic_GetPacket(ftenet_generic_connection_t *con)
{
#ifndef HAVE_PACKET
return false;
#else
struct sockaddr_qstorage from;
int fromlen;
int ret;
int err;
char adr[MAX_ADR_SIZE];
if (con->thesocket == INVALID_SOCKET)
return false;
fromlen = sizeof(from);
ret = recvfrom (con->thesocket, (char *)net_message_buffer, sizeof(net_message_buffer), 0, (struct sockaddr*)&from, &fromlen);
if (ret == -1)
{
err = qerrno;
if (err == EWOULDBLOCK)
return false;
if (err == EMSGSIZE)
{
SockadrToNetadr (&from, &net_from);
Con_TPrintf (TL_OVERSIZEPACKETFROM,
NET_AdrToString (adr, sizeof(adr), net_from));
return false;
}
if (err == ECONNABORTED || err == ECONNRESET)
{
Con_TPrintf (TL_CONNECTIONLOSTORABORTED); //server died/connection lost.
#ifndef SERVERONLY
if (cls.state != ca_disconnected && !con->islisten)
{
if (cls.lastarbiatarypackettime+5 < Sys_DoubleTime()) //too many mvdsv
Cbuf_AddText("disconnect\nreconnect\n", RESTRICT_LOCAL); //retry connecting.
else
Con_Printf("Packet was not delivered - server might be badly configured\n");
return false;
}
#endif
return false;
}
Con_Printf ("NET_GetPacket: Error (%i): %s\n", err, strerror(err));
return false;
}
SockadrToNetadr (&from, &net_from);
net_message.packing = SZ_RAWBYTES;
net_message.currentbit = 0;
net_message.cursize = ret;
if (net_message.cursize == sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), net_from));
return false;
}
return true;
#endif
}
qboolean FTENET_Generic_SendPacket(ftenet_generic_connection_t *con, int length, void *data, netadr_t to)
{
#ifndef HAVE_PACKET
return false;
#else
struct sockaddr_qstorage addr;
int size;
int ret;
for (size = 0; size < FTENET_ADDRTYPES; size++)
if (to.type == con->addrtype[size])
break;
if (size == FTENET_ADDRTYPES)
return false;
#ifdef IPPROTO_IPV6
/*special code to handle sending to hybrid sockets*/
if (con->addrtype[1] == NA_IPV6 && to.type == NA_IP)
{
memset(&addr, 0, sizeof(struct sockaddr_in6));
((struct sockaddr_in6*)&addr)->sin6_family = AF_INET6;
*(short*)&((struct sockaddr_in6*)&addr)->sin6_addr.s6_addr[10] = 0xffff;
*(int*)&((struct sockaddr_in6*)&addr)->sin6_addr.s6_addr[12] = *(int*)&to.address.ip;
((struct sockaddr_in6*)&addr)->sin6_port = to.port;
size = sizeof(struct sockaddr_in6);
}
else
#endif
{
NetadrToSockadr (&to, &addr);
switch(to.type)
{
default:
Con_Printf("Bad address type\n");
break;
#ifdef USEIPX //who uses ipx nowadays anyway?
case NA_BROADCAST_IPX:
case NA_IPX:
size = sizeof(struct sockaddr_ipx);
break;
#endif
case NA_BROADCAST_IP:
case NA_IP:
size = sizeof(struct sockaddr_in);
break;
#ifdef IPPROTO_IPV6
case NA_BROADCAST_IP6:
case NA_IPV6:
size = sizeof(struct sockaddr_in6);
break;
#endif
}
}
ret = sendto (con->thesocket, data, length, 0, (struct sockaddr*)&addr, size );
if (ret == -1)
{
int ecode = qerrno;
// wouldblock is silent
if (ecode == EWOULDBLOCK)
return true;
if (ecode == ECONNREFUSED)
return true;
#ifndef SERVERONLY
if (ecode == EADDRNOTAVAIL)
Con_DPrintf("NET_SendPacket Warning: %i\n", ecode);
else
#endif
Con_TPrintf (TL_NETSENDERROR, ecode);
}
return true;
#endif
}
qboolean NET_PortToAdr (int adrfamily, const char *s, netadr_t *a)
{
char *e;
int port;
port = strtoul(s, &e, 10);
if (*e) //if *e then its not just a single number in there, so treat it as a proper address.
return NET_StringToAdr(s, 0, a);
else if (port)
{
memset(a, 0, sizeof(*a));
a->port = htons((unsigned short)port);
switch(adrfamily)
{
#ifdef HAVE_IPV4
case AF_INET:
a->type = NA_IP;
return true;
#endif
#ifdef IPPROTO_IPV6
case AF_INET6:
a->type = NA_IPV6;
return true;
#endif
#ifdef USEIPX
case AF_IPX:
a->type = NA_IPX;
return true;
#endif
default:
a->type = NA_INVALID;
return false;
}
return false;
}
a->type = NA_INVALID;
return false;
}
ftenet_generic_connection_t *FTENET_Generic_EstablishConnection(int adrfamily, int protocol, qboolean isserver, const char *address)
{
#ifndef HAVE_PACKET
return NULL;
#else
//this is written to support either ipv4 or ipv6, depending on the remote addr.
ftenet_generic_connection_t *newcon;
unsigned long _true = true;
SOCKET newsocket = INVALID_SOCKET;
int temp;
netadr_t adr;
struct sockaddr_qstorage qs;
int family;
int port;
int bindtries;
int bufsz;
qboolean hybrid = false;
if (!NET_PortToAdr(adrfamily, address, &adr))
{
Con_Printf("unable to resolve local address %s\n", address);
return NULL; //couldn't resolve the name
}
temp = NetadrToSockadr(&adr, &qs);
family = ((struct sockaddr*)&qs)->sa_family;
#if defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
if (isserver && family == AF_INET && net_hybriddualstack.ival && !((struct sockaddr_in*)&qs)->sin_addr.s_addr)
{
unsigned long _false = false;
if ((newsocket = socket (AF_INET6, SOCK_DGRAM, protocol)) != INVALID_SOCKET)
{
if (0 == setsockopt(newsocket, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&_false, sizeof(_false)))
{
int ip = ((struct sockaddr_in*)&qs)->sin_addr.s_addr;
int port = ((struct sockaddr_in*)&qs)->sin_port;
ip = ((struct sockaddr_in*)&qs)->sin_addr.s_addr;
memset(&qs, 0, sizeof(struct sockaddr_in6));
((struct sockaddr_in6*)&qs)->sin6_family = AF_INET6;
/*
if (((struct sockaddr_in*)&qs)->sin_addr.s_addr)
{
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[10] = 0xff;
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[11] = 0xff;
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[12] = ((qbyte*)&ip)[0];
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[13] = ((qbyte*)&ip)[1];
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[14] = ((qbyte*)&ip)[2];
((struct sockaddr_in6*)&qs)->sin6_addr.s6_addr[15] = ((qbyte*)&ip)[3];
}
*/
((struct sockaddr_in6*)&qs)->sin6_port = port;
temp = sizeof(struct sockaddr_in6);
hybrid = true;
}
else
{
/*v6only failed... if the option doesn't exist, chances are this is a hybrid system which doesn't support both simultaneously anyway*/
closesocket(newsocket);
newsocket = INVALID_SOCKET;
}
}
}
#endif
if (newsocket == INVALID_SOCKET)
if ((newsocket = socket (family, SOCK_DGRAM, protocol)) == INVALID_SOCKET)
{
return NULL;
}
#if defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
if (family == AF_INET6)
setsockopt(newsocket, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&_true, sizeof(_true));
#endif
bufsz = 1<<18;
setsockopt(newsocket, SOL_SOCKET, SO_RCVBUF, (void*)&bufsz, sizeof(bufsz));
//try and find an unused port.
port = ntohs(((struct sockaddr_in*)&qs)->sin_port);
for (bindtries = 100; bindtries > 0; bindtries--)
{
((struct sockaddr_in*)&qs)->sin_port = htons((unsigned short)(port+100-bindtries));
if ((bind(newsocket, (struct sockaddr *)&qs, temp) == INVALID_SOCKET))
{
continue;
}
break;
}
if (!bindtries)
{
SockadrToNetadr(&qs, &adr);
//mneh, reuse qs.
NET_AdrToString((char*)&qs, sizeof(qs), adr);
Con_Printf("Unable to listen at %s\n", (char*)&qs);
closesocket(newsocket);
return NULL;
}
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(qerrno));
//
// determine my name & address if we don't already know it
//
if (!net_local_cl_ipadr.type == NA_INVALID)
NET_GetLocalAddress (newsocket, &net_local_cl_ipadr);
newcon = Z_Malloc(sizeof(*newcon));
if (newcon)
{
newcon->name = "Generic";
newcon->GetLocalAddress = FTENET_Generic_GetLocalAddress;
newcon->GetPacket = FTENET_Generic_GetPacket;
newcon->SendPacket = FTENET_Generic_SendPacket;
newcon->Close = FTENET_Generic_Close;
newcon->islisten = isserver;
if (hybrid)
{
newcon->addrtype[0] = NA_IP;
newcon->addrtype[1] = NA_IPV6;
}
else
{
newcon->addrtype[0] = adr.type;
newcon->addrtype[1] = NA_INVALID;
}
newcon->thesocket = newsocket;
return newcon;
}
else
{
closesocket(newsocket);
return NULL;
}
#endif
}
#ifdef IPPROTO_IPV6
ftenet_generic_connection_t *FTENET_UDP6_EstablishConnection(qboolean isserver, const char *address)
{
return FTENET_Generic_EstablishConnection(AF_INET6, IPPROTO_UDP, isserver, address);
}
#endif
#ifdef HAVE_IPV4
ftenet_generic_connection_t *FTENET_UDP4_EstablishConnection(qboolean isserver, const char *address)
{
return FTENET_Generic_EstablishConnection(AF_INET, IPPROTO_UDP, isserver, address);
}
#endif
#ifdef USEIPX
ftenet_generic_connection_t *FTENET_IPX_EstablishConnection(qboolean isserver, const char *address)
{
return FTENET_Generic_EstablishConnection(AF_IPX, NSPROTO_IPX, isserver, address);
}
#endif
#ifdef TCPCONNECT
typedef struct ftenet_tcpconnect_stream_s {
int socketnum;
int inlen;
int outlen;
enum
{
TCPC_UNKNOWN,
TCPC_QIZMO,
TCPC_WEBSOCKET
} clienttype;
char inbuffer[3000];
char outbuffer[3000];
float timeouttime;
netadr_t remoteaddr;
struct ftenet_tcpconnect_stream_s *next;
} ftenet_tcpconnect_stream_t;
typedef struct {
ftenet_generic_connection_t generic;
int active;
ftenet_tcpconnect_stream_t *tcpstreams;
} ftenet_tcpconnect_connection_t;
void tobase64(unsigned char *out, int outlen, unsigned char *in, int inlen)
{
static unsigned char tab[64] =
{
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
};
unsigned int usedbits = 0;
unsigned int val = 0;
outlen--;
while(inlen)
{
while(usedbits < 24 && inlen)
{
val <<= 8;
val |= (*in++);
inlen--;
usedbits += 8;
}
if (outlen < 4)
return;
val <<= 24 - usedbits;
*out++ = (usedbits > 0)?tab[(val>>18)&0x3f]:'=';
*out++ = (usedbits > 6)?tab[(val>>12)&0x3f]:'=';
*out++ = (usedbits > 12)?tab[(val>>6)&0x3f]:'=';
*out++ = (usedbits > 18)?tab[(val>>0)&0x3f]:'=';
val=0;
usedbits = 0;
}
*out = 0;
}
int SHA1(char *digest, int maxdigestsize, char *string);
qboolean FTENET_TCPConnect_GetPacket(ftenet_generic_connection_t *gcon)
{
ftenet_tcpconnect_connection_t *con = (ftenet_tcpconnect_connection_t*)gcon;
int ret;
int err;
char adr[MAX_ADR_SIZE];
struct sockaddr_qstorage from;
int fromlen;
float timeval = Sys_DoubleTime();
ftenet_tcpconnect_stream_t *st;
st = con->tcpstreams;
//remove any stale ones
while (con->tcpstreams && con->tcpstreams->socketnum == INVALID_SOCKET)
{
st = con->tcpstreams;
con->tcpstreams = con->tcpstreams->next;
BZ_Free(st);
}
for (st = con->tcpstreams; st; st = st->next)
{//client receiving only via tcp
while (st->next && st->next->socketnum == INVALID_SOCKET)
{
ftenet_tcpconnect_stream_t *temp;
temp = st->next;
st->next = st->next->next;
BZ_Free(temp);
con->active--;
}
//due to the above checks about invalid sockets, the socket is always open for st below.
if (st->timeouttime < timeval)
goto closesvstream;
ret = recv(st->socketnum, st->inbuffer+st->inlen, sizeof(st->inbuffer)-st->inlen, 0);
if (ret == 0)
goto closesvstream;
else if (ret == -1)
{
err = qerrno;
if (err == EWOULDBLOCK)
ret = 0;
else
{
if (err == ECONNABORTED || err == ECONNRESET)
{
Con_TPrintf (TL_CONNECTIONLOSTORABORTED); //server died/connection lost.
}
else
Con_Printf ("TCPConnect_GetPacket: Error (%i): %s\n", err, strerror(err));
closesvstream:
closesocket(st->socketnum);
st->socketnum = INVALID_SOCKET;
continue;
}
}
st->inlen += ret;
switch(st->clienttype)
{
case TCPC_UNKNOWN:
if (st->inlen < 6)
continue;
if (!strncmp(st->inbuffer, "qizmo\n", 6))
{
memmove(st->inbuffer, st->inbuffer+6, st->inlen - (6));
st->inlen -= 6;
st->clienttype = TCPC_QIZMO;
if (con->generic.islisten)
{
//send the qizmo handshake response.
send(st->socketnum, "qizmo\n", 6, 0);
}
}
else if (con->generic.islisten && !strncmp(st->inbuffer, "GET ", 4))
{
int i, j;
int attr = 0;
int alen = 0;
qboolean headerscomplete = false;
enum
{
WCATTR_METHOD,
WCATTR_URL,
WCATTR_HTTP,
WCATTR_HOST,
WCATTR_UPGRADE,
WCATTR_CONNECTION,
WCATTR_WSKEY,
WCATTR_WSVER,
//WCATTR_ORIGIN,
WCATTR_WSPROTO,
//WCATTR_WSEXT,
WCATTR_COUNT
};
char arg[WCATTR_COUNT][64];
for (i = 0; i < WCATTR_COUNT; i++)
arg[i][0] = 0;
for (i = 0; i < st->inlen; i++)
{
if (alen == 63)
goto handshakeerror;
if (st->inbuffer[i] == ' ' || st->inbuffer[i] == '\t')
{
arg[attr][alen++] = 0;
alen=0;
if (attr++ == WCATTR_HTTP)
break;
for (; i < st->inlen && (st->inbuffer[i] == ' ' || st->inbuffer[i] == '\t'); i++)
;
if (i == st->inlen)
break;
}
arg[attr][alen++] = st->inbuffer[i];
if (st->inbuffer[i] == '\n')
{
arg[attr][alen++] = 0;
alen=0;
break;
}
}
i++;
attr = 0;
j = i;
for (; i < st->inlen; i++)
{
if ((i+1 < st->inlen && st->inbuffer[i] == '\r' && st->inbuffer[i+1] == '\n') ||
(i < st->inlen && st->inbuffer[i] == '\n'))
{
i+=2;
headerscomplete = true;
break;
}
for (; i < st->inlen && (st->inbuffer[i] == ' ' || st->inbuffer[i] == '\t'); i++)
;
if (i == st->inlen)
break;
for (j = i; j < st->inlen; j++)
{
if (st->inbuffer[j] == ':' || st->inbuffer[j] == '\n')
{
/*set j to the end of the word, going back past whitespace*/
while (j > i && (st->inbuffer[j-1] == ' ' || st->inbuffer[i-1] == '\t'))
j--;
break;
}
}
if (!strnicmp(&st->inbuffer[i], "Host", j-i))
attr = WCATTR_HOST;
else if (!strnicmp(&st->inbuffer[i], "Upgrade", j-i))
attr = WCATTR_UPGRADE;
else if (!strnicmp(&st->inbuffer[i], "Connection", j-i))
attr = WCATTR_CONNECTION;
else if (!strnicmp(&st->inbuffer[i], "Sec-WebSocket-Key", j-i))
attr = WCATTR_WSKEY;
else if (!strnicmp(&st->inbuffer[i], "Sec-WebSocket-Version", j-i))
attr = WCATTR_WSVER;
// else if (!strnicmp(&st->inbuffer[i], "Origin", j-i))
// attr = WCATTR_ORIGIN;
else if (!strnicmp(&st->inbuffer[i], "Sec-WebSocket-Protocol", j-i))
attr = WCATTR_WSPROTO;
// else if (!strnicmp(&st->inbuffer[i], "Sec-WebSocket-Extensions", j-i))
// attr = WCATTR_WSEXT;
else
attr = 0;
i = j;
/*skip over the whitespace at the end*/
for (; i < st->inlen && (st->inbuffer[i] == ' ' || st->inbuffer[i] == '\t'); i++)
;
if (i < st->inlen && st->inbuffer[i] == ':')
{
i++;
for (; i < st->inlen && (st->inbuffer[i] == ' ' || st->inbuffer[i] == '\t'); i++)
;
j = i;
for (; i < st->inlen && st->inbuffer[i] != '\n'; i++)
;
if (i > j && st->inbuffer[i-1] == '\r')
i--;
if (attr)
Q_strncpyz(arg[attr], &st->inbuffer[j], (i-j > 63)?64:(i - j + 1));
if (i < st->inlen && st->inbuffer[i] == '\r')
i++;
}
else
{
/*just a word on the line on its own*/
goto handshakeerror;
}
}
if (headerscomplete)
{
char *resp;
//must be a Host, Upgrade=websocket, Connection=Upgrade, Sec-WebSocket-Key=base64(randbytes(16)), Sec-WebSocket-Version=13
//optionally will be Origin=url, Sec-WebSocket-Protocol=FTEWebSocket, Sec-WebSocket-Extensions
//other fields will be ignored.
//FIXME: reply with 426 Upgrade Required if wsversion is not supported
if (!stricmp(arg[WCATTR_UPGRADE], "websocket") && !stricmp(arg[WCATTR_CONNECTION], "Upgrade"))
{
if (atoi(arg[WCATTR_WSVER]) != 13)
{
memmove(st->inbuffer, st->inbuffer+i, st->inlen - (i));
st->inlen -= i;
resp = va( "HTTP/1.1 426 Upgrade Required\r\n"
"Sec-WebSocket-Version: 13\r\n"
"\r\n");
//send the websocket handshake rejection.
send(st->socketnum, resp, strlen(resp), 0);
goto closesvstream;
}
else
{
char acceptkey[20*2];
unsigned char sha1digest[20];
memmove(st->inbuffer, st->inbuffer+i, st->inlen - (i));
st->inlen -= i;
tobase64(acceptkey, sizeof(acceptkey), sha1digest, SHA1(sha1digest, sizeof(sha1digest), va("%s258EAFA5-E914-47DA-95CA-C5AB0DC85B11", arg[WCATTR_WSKEY])));
resp = va( "HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
// "Sec-WebSocket-Protocol: FTEWebSocket\r\n"
"\r\n", acceptkey);
//send the websocket handshake response.
send(st->socketnum, resp, strlen(resp), 0);
//and the connection is okay
st->clienttype = TCPC_WEBSOCKET;
}
}
else
{
memmove(st->inbuffer, st->inbuffer+i, st->inlen - (i));
st->inlen -= i;
resp = va( "HTTP/1.1 426 Upgrade Required\r\n"
"Sec-WebSocket-Version: 13\r\n"
"\r\n");
//send the websocket handshake rejection.
send(st->socketnum, resp, strlen(resp), 0);
goto closesvstream;
}
}
}
else
{
handshakeerror:
Con_Printf ("Unknown TCP handshake from %s\n", NET_AdrToString (adr, sizeof(adr), net_from));
goto closesvstream;
}
break;
case TCPC_QIZMO:
if (st->inlen < 2)
continue;
net_message.cursize = BigShort(*(short*)st->inbuffer);
if (net_message.cursize >= sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
}
if (net_message.cursize+2 > st->inlen)
{ //not enough buffered to read a packet out of it.
continue;
}
memcpy(net_message_buffer, st->inbuffer+2, net_message.cursize);
memmove(st->inbuffer, st->inbuffer+net_message.cursize+2, st->inlen - (net_message.cursize+2));
st->inlen -= net_message.cursize+2;
net_message.packing = SZ_RAWBYTES;
net_message.currentbit = 0;
net_from = st->remoteaddr;
return true;
case TCPC_WEBSOCKET:
while (st->inlen >= 2)
{
unsigned short ctrl = ((unsigned char*)st->inbuffer)[0]<<8 | ((unsigned char*)st->inbuffer)[1];
unsigned long paylen;
unsigned int payoffs = 2;
unsigned int mask = 0;
st->inbuffer[st->inlen]=0;
if ((ctrl & 0x7f) == 127)
{
//as a payload is not allowed to be encoded as too large a type, and quakeworld never used packets larger than 1450 bytes anyway, this code isn't needed (65k is the max even without this)
// if (sizeof(paylen) < 8)
{
Con_Printf ("%s: payload frame too large\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
}
/* else
{
if (payoffs + 8 > st->inlen)
break;
paylen =
((unsigned char*)st->inbuffer)[payoffs+0]<<56 |
((unsigned char*)st->inbuffer)[payoffs+1]<<48 |
((unsigned char*)st->inbuffer)[payoffs+2]<<40 |
((unsigned char*)st->inbuffer)[payoffs+3]<<32 |
((unsigned char*)st->inbuffer)[payoffs+4]<<24 |
((unsigned char*)st->inbuffer)[payoffs+5]<<16 |
((unsigned char*)st->inbuffer)[payoffs+6]<<8 |
((unsigned char*)st->inbuffer)[payoffs+7]<<0;
if (paylen < 0x10000)
{
Con_Printf ("%s: payload size encoded badly\n", NET_AdrToString (st->remoteaddr, sizeof(st->remoteaddr), net_from));
goto closesvstream;
}
payoffs += 8;
}
*/ }
else if ((ctrl & 0x7f) == 126)
{
if (payoffs + 2 > st->inlen)
break;
paylen =
((unsigned char*)st->inbuffer)[payoffs+0]<<8 |
((unsigned char*)st->inbuffer)[payoffs+1]<<0;
if (paylen < 126)
{
Con_Printf ("%s: payload size encoded badly\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
}
payoffs += 2;
}
else
{
paylen = ctrl & 0x7f;
}
if (ctrl & 0x80)
{
if (payoffs + 4 > st->inlen)
break;
/*this might read data that isn't set yet, but should be safe*/
((unsigned char*)&mask)[0] = ((unsigned char*)st->inbuffer)[payoffs+0];
((unsigned char*)&mask)[1] = ((unsigned char*)st->inbuffer)[payoffs+1];
((unsigned char*)&mask)[2] = ((unsigned char*)st->inbuffer)[payoffs+2];
((unsigned char*)&mask)[3] = ((unsigned char*)st->inbuffer)[payoffs+3];
payoffs += 4;
}
/*if there isn't space, try again next time around*/
if (payoffs + paylen > st->inlen)
break;
if (mask)
{
int i;
for (i = 0; i < paylen; i++)
{
((unsigned char*)st->inbuffer)[i + payoffs] ^= ((unsigned char*)&mask)[i&3];
}
}
net_message.cursize = 0;
switch((ctrl>>8) & 0xf)
{
case 0: /*continuation*/
Con_Printf ("websocket continuation frame from %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
case 1: /*text frame*/
// Con_Printf ("websocket text frame from %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
{
/*text frames are pure utf-8 chars, no dodgy encodings or anything, all pre-checked...
except we're trying to send binary data.
so we need to unmask things (char 0 is encoded as 0x100 - truncate it)
*/
unsigned char *in = st->inbuffer+payoffs, *out = net_message_buffer;
int len = paylen;
while(len && out < net_message_buffer + sizeof(net_message_buffer))
{
if ((*in & 0xe0)==0xc0 && len > 1)
{
*out = ((in[0] & 0x1f)<<6) | ((in[1] & 0x3f)<<0);
in+=2;
len -= 2;
}
else if (*in & 0x80)
{
*out = '?';
in++;
len -= 1;
}
else
{
*out = in[0];
in++;
len -= 1;
}
out++;
}
net_message.cursize = out - net_message_buffer;
}
break;
case 2: /*binary frame*/
Con_Printf ("websocket binary frame from %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
net_message.cursize = paylen;
if (net_message.cursize >= sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), net_from));
goto closesvstream;
}
memcpy(net_message_buffer, st->inbuffer+payoffs, paylen);
break;
case 8: /*connection close*/
Con_Printf ("websocket closure %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
case 9: /*ping*/
Con_Printf ("websocket ping from %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
case 10: /*pong*/
Con_Printf ("websocket pong from %s\n", NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
default:
Con_Printf ("Unsupported websocket opcode (%i) from %s\n", (ctrl>>8) & 0xf, NET_AdrToString (adr, sizeof(adr), st->remoteaddr));
goto closesvstream;
}
// memcpy(net_message_buffer, st->inbuffer+2, net_message.cursize);
memmove(st->inbuffer, st->inbuffer+payoffs + paylen, st->inlen - (payoffs + paylen));
st->inlen -= payoffs + paylen;
if (net_message.cursize)
{
net_message.packing = SZ_RAWBYTES;
net_message.currentbit = 0;
net_from = st->remoteaddr;
return true;
}
}
break;
}
}
if (con->generic.thesocket != INVALID_SOCKET && con->active < 256)
{
int newsock;
fromlen = sizeof(from);
newsock = accept(con->generic.thesocket, (struct sockaddr*)&from, &fromlen);
if (newsock != INVALID_SOCKET)
{
int _true = true;
ioctlsocket(newsock, FIONBIO, (u_long *)&_true);
setsockopt(newsock, IPPROTO_TCP, TCP_NODELAY, (char *)&_true, sizeof(_true));
con->active++;
st = Z_Malloc(sizeof(*con->tcpstreams));
st->clienttype = TCPC_UNKNOWN;
st->next = con->tcpstreams;
con->tcpstreams = st;
st->socketnum = newsock;
st->inlen = 0;
/*grab the net address*/
SockadrToNetadr(&from, &st->remoteaddr);
/*sockadr doesn't contain transport info, so fix that up here*/
if (st->remoteaddr.type == NA_IP)
st->remoteaddr.type = NA_TCP;
else if (st->remoteaddr.type == NA_IPV6)
st->remoteaddr.type = NA_TCPV6;
st->timeouttime = timeval + 30;
}
}
return false;
}
qboolean FTENET_TCPConnect_SendPacket(ftenet_generic_connection_t *gcon, int length, void *data, netadr_t to)
{
ftenet_tcpconnect_connection_t *con = (ftenet_tcpconnect_connection_t*)gcon;
ftenet_tcpconnect_stream_t *st;
for (st = con->tcpstreams; st; st = st->next)
{
if (st->socketnum == INVALID_SOCKET)
continue;
if (NET_CompareAdr(to, st->remoteaddr))
{
if (!st->outlen)
{
switch(st->clienttype)
{
case TCPC_QIZMO:
{
unsigned short slen = BigShort((unsigned short)length);
if (st->outlen + sizeof(slen) + length > sizeof(st->outbuffer))
{
Con_DPrintf("FTENET_TCPConnect_SendPacket: outgoing overflow\n");
}
else
{
memcpy(st->outbuffer + st->outlen, &slen, sizeof(slen));
memcpy(st->outbuffer + st->outlen + sizeof(slen), data, length);
st->outlen += sizeof(slen) + length;
}
}
break;
case TCPC_WEBSOCKET:
{
/*as a server, we don't need the mask stuff*/
unsigned short ctrl = 0x8100;
unsigned int paylen = 0;
unsigned int payoffs = 2;
int i;
for (i = 0; i < length; i++)
{
paylen += (((char*)data)[i] == 0 || ((unsigned char*)data)[i] >= 0x80)?2:1;
}
if (paylen >= 126)
{
ctrl |= 126;
payoffs += 2;
}
else
ctrl |= paylen;
st->outbuffer[0] = ctrl>>8;
st->outbuffer[1] = ctrl&0xff;
if (paylen >= 126)
{
st->outbuffer[2] = paylen>>8;
st->outbuffer[3] = paylen&0xff;
}
/*utf8ify the data*/
for (i = 0; i < length; i++)
{
if (!((unsigned char*)data)[i])
{ /*0 is encoded as 0x100 to avoid safety checks*/
st->outbuffer[payoffs++] = 0xc0 | (0x100>>6);
st->outbuffer[payoffs++] = 0x80 | (0x100&0x3f);
}
else if (((unsigned char*)data)[i] >= 0x80)
{ /*larger bytes require markup*/
st->outbuffer[payoffs++] = 0xc0 | (((unsigned char*)data)[i]>>6);
st->outbuffer[payoffs++] = 0x80 | (((unsigned char*)data)[i]&0x3f);
}
else
{ /*lower 7 bits are as-is*/
st->outbuffer[payoffs++] = ((char*)data)[i];
}
}
st->outlen = payoffs;
}
break;
default:
break;
}
}
if (st->outlen)
{ /*try and flush the old data*/
int done;
done = send(st->socketnum, st->outbuffer, st->outlen, 0);
if (done > 0)
{
memmove(st->outbuffer, st->outbuffer + done, st->outlen - done);
st->outlen -= done;
}
}
st->timeouttime = Sys_DoubleTime() + 20;
return true;
}
}
return false;
}
void FTENET_TCPConnect_Close(ftenet_generic_connection_t *gcon)
{
ftenet_tcpconnect_connection_t *con = (ftenet_tcpconnect_connection_t*)gcon;
ftenet_tcpconnect_stream_t *st;
st = con->tcpstreams;
while (con->tcpstreams)
{
st = con->tcpstreams;
con->tcpstreams = st->next;
if (st->socketnum != INVALID_SOCKET)
closesocket(st->socketnum);
BZ_Free(st);
}
FTENET_Generic_Close(gcon);
}
int FTENET_TCPConnect_SetReceiveFDSet(ftenet_generic_connection_t *gcon, fd_set *fdset)
{
int maxfd = 0;
ftenet_tcpconnect_connection_t *con = (ftenet_tcpconnect_connection_t*)gcon;
ftenet_tcpconnect_stream_t *st;
for (st = con->tcpstreams; st; st = st->next)
{
if (st->socketnum == INVALID_SOCKET)
continue;
FD_SET(st->socketnum, fdset); // network socket
if (maxfd < st->socketnum)
maxfd = st->socketnum;
}
if (con->generic.thesocket != INVALID_SOCKET)
{
FD_SET(con->generic.thesocket, fdset); // network socket
if (maxfd < con->generic.thesocket)
maxfd = con->generic.thesocket;
}
return maxfd;
}
ftenet_generic_connection_t *FTENET_TCPConnect_EstablishConnection(int affamily, qboolean isserver, const char *address)
{
//this is written to support either ipv4 or ipv6, depending on the remote addr.
ftenet_tcpconnect_connection_t *newcon;
unsigned long _true = true;
int newsocket;
int temp;
netadr_t adr;
struct sockaddr_qstorage qs;
int family;
if (!strncmp(address, "tcp://", 6))
address += 6;
if (isserver)
{
if (!NET_PortToAdr(affamily, address, &adr))
return NULL; //couldn't resolve the name
if (adr.type == NA_IP)
adr.type = NA_TCP;
temp = NetadrToSockadr(&adr, &qs);
family = ((struct sockaddr_in*)&qs)->sin_family;
if ((newsocket = socket (family, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)
{
Con_Printf("operating system doesn't support that\n");
return NULL;
}
if ((bind(newsocket, (struct sockaddr *)&qs, temp) == INVALID_SOCKET) ||
(listen(newsocket, 2) == INVALID_SOCKET))
{
SockadrToNetadr(&qs, &adr);
//mneh, reuse qs.
NET_AdrToString((char*)&qs, sizeof(qs), adr);
Con_Printf("Unable to listen at %s\n", (char*)&qs);
closesocket(newsocket);
return NULL;
}
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(qerrno));
}
else
{
if (!NET_PortToAdr(affamily, address, &adr))
return NULL; //couldn't resolve the name
if (adr.type == NA_IP)
adr.type = NA_TCP;
newsocket = TCP_OpenStream(adr);
if (newsocket == INVALID_SOCKET)
return NULL;
}
//this isn't fatal
setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (char *)&_true, sizeof(_true));
newcon = Z_Malloc(sizeof(*newcon));
if (newcon)
{
newcon->generic.name = "TCPConnect";
if (isserver)
newcon->generic.GetLocalAddress = FTENET_Generic_GetLocalAddress;
newcon->generic.GetPacket = FTENET_TCPConnect_GetPacket;
newcon->generic.SendPacket = FTENET_TCPConnect_SendPacket;
newcon->generic.Close = FTENET_TCPConnect_Close;
newcon->generic.SetReceiveFDSet = FTENET_TCPConnect_SetReceiveFDSet;
newcon->generic.islisten = isserver;
newcon->generic.addrtype[0] = adr.type;
newcon->generic.addrtype[1] = NA_INVALID;
newcon->active = 0;
if (!isserver)
{
newcon->generic.thesocket = INVALID_SOCKET;
newcon->active++;
newcon->tcpstreams = Z_Malloc(sizeof(*newcon->tcpstreams));
newcon->tcpstreams->clienttype = TCPC_UNKNOWN;
newcon->tcpstreams->next = NULL;
newcon->tcpstreams->socketnum = newsocket;
newcon->tcpstreams->inlen = 0;
newcon->tcpstreams->remoteaddr = adr;
//send the qizmo greeting.
send(newsocket, "qizmo\n", 6, 0);
newcon->tcpstreams->timeouttime = Sys_DoubleTime() + 30;
}
else
{
newcon->tcpstreams = NULL;
newcon->generic.thesocket = newsocket;
}
return &newcon->generic;
}
else
{
closesocket(newsocket);
return NULL;
}
}
#ifdef IPPROTO_IPV6
ftenet_generic_connection_t *FTENET_TCP6Connect_EstablishConnection(qboolean isserver, const char *address)
{
return FTENET_TCPConnect_EstablishConnection(AF_INET6, isserver, address);
}
#endif
ftenet_generic_connection_t *FTENET_TCP4Connect_EstablishConnection(qboolean isserver, const char *address)
{
return FTENET_TCPConnect_EstablishConnection(AF_INET, isserver, address);
}
#endif
#ifdef IRCCONNECT
typedef struct ftenet_ircconnect_stream_s {
char theiruser[16];
int inlen;
char inbuffer[1500];
float timeouttime;
netadr_t remoteaddr;
struct ftenet_ircconnect_stream_s *next;
} ftenet_ircconnect_stream_t;
typedef struct {
ftenet_generic_connection_t generic;
netadr_t ircserver;
char incoming[512+1];
int income;
char ourusername[16];
char usechannel[16];
char outbuf[8192];
unsigned int outbufcount;
ftenet_ircconnect_stream_t *streams;
} ftenet_ircconnect_connection_t;
qboolean FTENET_IRCConnect_GetPacket(ftenet_generic_connection_t *gcon)
{
unsigned char *s, *start, *end, *endl;
int read;
unsigned char *from;
int fromlen;
int code;
char adr[128];
ftenet_ircconnect_connection_t *con = (ftenet_ircconnect_connection_t*)gcon;
if (con->generic.thesocket == INVALID_SOCKET)
{
if (con->income == 0)
{
cvar_t *ircuser = Cvar_Get("ircuser", "none", 0, "IRC Connect");
cvar_t *irchost = Cvar_Get("irchost", "none", 0, "IRC Connect");
cvar_t *ircnick = Cvar_Get("ircnick", "ftesv", 0, "IRC Connect");
//cvar_t *ircchannel = Cvar_Get("ircchannel", "#ftetest", 0, "IRC Connect"); //warning: unused variable <20>ircchannel<65>
cvar_t *ircsomething = Cvar_Get("ircsomething", "moo", 0, "IRC Connect");
cvar_t *ircclientaddr = Cvar_Get("ircclientaddr", "127.0.0.1", 0, "IRC Connect");
con->generic.thesocket = TCP_OpenStream(con->ircserver);
Q_strncpyz(con->ourusername, ircnick->string, sizeof(con->ourusername));
send(con->generic.thesocket, "USER ", 5, 0);
send(con->generic.thesocket, ircuser->string, strlen(ircuser->string), 0);
send(con->generic.thesocket, " ", 1, 0);
send(con->generic.thesocket, irchost->string, strlen(irchost->string), 0);
send(con->generic.thesocket, " ", 1, 0);
send(con->generic.thesocket, ircclientaddr->string, strlen(ircclientaddr->string), 0);
send(con->generic.thesocket, " :", 2, 0);
send(con->generic.thesocket, ircsomething->string, strlen(ircsomething->string), 0);
send(con->generic.thesocket, "\r\n", 2, 0);
send(con->generic.thesocket, "NICK ", 5, 0);
send(con->generic.thesocket, con->ourusername, strlen(con->ourusername), 0);
send(con->generic.thesocket, "\r\n", 2, 0);
}
}
else
{
read = recv(con->generic.thesocket, con->incoming+con->income, sizeof(con->incoming)-1 - con->income, 0);
if (read < 0)
{
read = qerrno;
switch(read)
{
case ECONNABORTED:
case ECONNRESET:
closesocket(con->generic.thesocket);
con->generic.thesocket = INVALID_SOCKET;
break;
default:
break;
}
read = 0;//return false;
}
else if (read == 0) //they disconnected.
{
closesocket(con->generic.thesocket);
con->generic.thesocket = INVALID_SOCKET;
}
con->income += read;
con->incoming[con->income] = 0;
}
start = con->incoming;
end = start+con->income;
while (start < end)
{
endl = NULL;
for (s = start; s < end; s++)
{
if (*s == '\n')
{
endl = s;
break;
}
}
if (endl == NULL)
//not got a complete command.
break;
s = start;
while(*s == ' ')
s++;
if (*s == ':')
{
s++;
from = s;
while(s<endl && *s != ' ' && *s != '\n')
{
s++;
}
fromlen = s - from;
}
else
{
from = NULL;
fromlen = 0;
}
while(*s == ' ')
s++;
if (!strncmp(s, "PRIVMSG ", 8))
{
unsigned char *dest;
s+=8;
while(*s == ' ')
s++;
//cap the length
if (fromlen > sizeof(net_from.address.irc.user)-1)
fromlen = sizeof(net_from.address.irc.user)-1;
for (code = 0; code < fromlen; code++)
if (from[code] == '!')
{
fromlen = code;
break;
}
net_from.type = NA_IRC;
memcpy(net_from.address.irc.user, from, fromlen);
net_from.address.irc.user[fromlen] = 0;
dest = s;
//discard the destination name
while(s<endl && *s != ' ' && *s != '\n')
{
s++;
}
if (s-dest >= sizeof(net_from.address.irc.channel))
{ //no space, just pretend it was direct.
net_from.address.irc.channel[0] = 0;
}
else
{
memcpy(net_from.address.irc.channel, dest, s-dest);
net_from.address.irc.channel[s-dest] = 0;
if (!strcmp(net_from.address.irc.channel, con->ourusername))
{ //this was aimed at us. clear the channel.
net_from.address.irc.channel[0] = 0;
}
}
while(*s == ' ')
s++;
if (*s == ':')
{
s++;
if (*s == '!')
{
s++;
/*interpret as a connectionless packet*/
net_message.cursize = 4 + endl - s;
if (net_message.cursize >= sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), net_from));
break;
}
*(unsigned int*)net_message_buffer = ~0;
memcpy(net_message_buffer+4, s, net_message.cursize);
net_message.packing = SZ_RAWBYTES;
net_message.currentbit = 0;
//clean up the incoming data
memmove(con->incoming, start, end - (endl+1));
con->income = end - (endl+1);
con->incoming[con->income] = 0;
return true;
}
if (*s == '$')
{
unsigned char *nstart = s;
while (*s != '\r' && *s != '\n' && *s != '#' && *s != ' ' && *s != ':')
s++;
if (*s == '#')
{
if (strncmp(nstart, con->ourusername, strlen(con->ourusername)) || strlen(con->ourusername) != s - nstart)
while(*s == '#')
s++;
}
}
if (*s == '#')
{
ftenet_ircconnect_stream_t *st;
int psize;
for (st = con->streams; st; st = st->next)
{
if (!strncmp(st->remoteaddr.address.irc.user, from, fromlen) && st->remoteaddr.address.irc.user[fromlen] == 0)
break;
}
if (!st)
{
st = Z_Malloc(sizeof(*st));
st->remoteaddr = net_from;
st->next = con->streams;
con->streams = st;
}
//skip over the hash
s++;
psize = 0;
if (*s >= 'a' && *s <= 'f')
psize += *s - 'a' + 10;
else if (*s >= '0' && *s <= '9')
psize += *s - '0';
s++;
psize*=16;
if (*s >= 'a' && *s <= 'f')
psize += *s - 'a' + 10;
else if (*s >= '0' && *s <= '9')
psize += *s - '0';
s++;
psize*=16;
if (*s >= 'a' && *s <= 'f')
psize += *s - 'a' + 10;
else if (*s >= '0' && *s <= '9')
psize += *s - '0';
s++;
while (s < endl && st->inlen < sizeof(st->inbuffer))
{
switch (*s)
{
//handle markup
case '\\':
s++;
if (s < endl)
{
switch(*s)
{
case '\\':
st->inbuffer[st->inlen++] = *s;
break;
case 'n':
st->inbuffer[st->inlen++] = '\n';
break;
case 'r':
st->inbuffer[st->inlen++] = '\r';
break;
case '0':
st->inbuffer[st->inlen++] = 0;
break;
default:
st->inbuffer[st->inlen++] = '?';
break;
}
}
break;
//ignore these
case '\n':
case '\r':
case '\0': //this one doesn't have to be ignored.
break;
//handle normal char
default:
st->inbuffer[st->inlen++] = *s;
break;
}
s++;
}
if (st->inlen > psize || psize >= sizeof(net_message_buffer) )
{
st->inlen = 0;
Con_Printf ("Corrupt packet from %s\n", NET_AdrToString (adr, sizeof(adr), net_from));
}
else if (st->inlen == psize)
{
/*interpret as a connectionless packet*/
net_message.cursize = st->inlen;
if (net_message.cursize >= sizeof(net_message_buffer) )
{
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), net_from));
break;
}
memcpy(net_message_buffer, st->inbuffer, net_message.cursize);
net_message.packing = SZ_RAWBYTES;
net_message.currentbit = 0;
st->inlen = 0;
//clean up the incoming data
memmove(con->incoming, start, end - (endl+1));
con->income = end - (endl+1);
con->incoming[con->income] = 0;
return true;
}
}
}
}
else if (!strncmp(s, "PING ", 5))
{
send(con->generic.thesocket, "PONG ", 5, 0);
send(con->generic.thesocket, s+5, endl - s - 5, 0);
send(con->generic.thesocket, "\r\n", 2, 0);
}
else
{
code = strtoul(s, (char **)&s, 10);
switch (code)
{
case 001:
{
cvar_t *ircchannel = Cvar_Get("ircchannel", "", 0, "IRC Connect");
if (*ircchannel->string)
{
send(con->generic.thesocket, "JOIN ", 5, 0);
send(con->generic.thesocket, ircchannel->string, strlen(ircchannel->string), 0);
send(con->generic.thesocket, "\r\n", 2, 0);
}
}
break;
case 433:
//nick already in use
send(con->generic.thesocket, "NICK ", 5, 0);
{
cvar_t *ircnick2 = Cvar_Get("ircnick2", "YIBBLE", 0, "IRC Connect");
Q_strncpyz(con->ourusername, ircnick2->string, sizeof(con->ourusername));
send(con->generic.thesocket, con->ourusername, strlen(con->ourusername), 0);
}
send(con->generic.thesocket, "\r\n", 2, 0);
break;
case 0:
//non-numerical event.
break;
}
}
while(*s == ' ')
s++;
start = s = endl+1;
}
memmove(con->incoming, start, end - start);
con->income = end - start;
con->incoming[con->income] = 0;
if (con->generic.thesocket == INVALID_SOCKET)
con->income = 0;
return false;
}
qboolean FTENET_IRCConnect_SendPacket(ftenet_generic_connection_t *gcon, int length, void *data, netadr_t to)
{
ftenet_ircconnect_connection_t *con = (ftenet_ircconnect_connection_t*)gcon;
unsigned char *buffer;
unsigned char *lenofs;
int packed;
int fulllen = length;
int newoutcount;
for (packed = 0; packed < FTENET_ADDRTYPES; packed++)
if (to.type == con->generic.addrtype[packed])
break;
if (packed == FTENET_ADDRTYPES)
return false;
packed = 0;
if (con->generic.thesocket == INVALID_SOCKET)
return true;
/*
if (*(unsigned int *)data == ~0 && !strchr(data, '\n') && !strchr(data, '\r') && strlen(data) == length)
{
if (send(con->generic.thesocket, va("PRIVMSG %s :!", to.address.irc.user), 15, 0) != 15)
Con_Printf("bad send\n");
else if (send(con->generic.thesocket, (char*)data+4, length - 4, 0) != length-4)
Con_Printf("bad send\n");
else if (send(con->generic.thesocket, "\r\n", 2, 0) != 2)
Con_Printf("bad send\n");
return true;
}
*/
newoutcount = con->outbufcount;
if (!con->outbufcount)
while(length)
{
buffer = con->outbuf + newoutcount;
if (*to.address.irc.channel)
{
int unamelen;
int chanlen;
unamelen = strlen(to.address.irc.user);
chanlen = strlen(to.address.irc.channel);
packed = 8+chanlen+3+unamelen+1 + 3;
if (packed+1 + newoutcount > sizeof(con->outbuf))
break;
memcpy(buffer, "PRIVMSG ", 8);
memcpy(buffer+8, to.address.irc.channel, chanlen);
memcpy(buffer+8+chanlen, " :$", 3);
memcpy(buffer+8+chanlen+3, to.address.irc.user, unamelen);
memcpy(buffer+8+chanlen+3+unamelen, "#", 1);
lenofs = buffer+8+chanlen+3+unamelen+1;
sprintf(lenofs, "%03x", fulllen);
}
else
{
int unamelen;
unamelen = strlen(to.address.irc.user);
packed = 8 + unamelen + 3 + 3;
if (packed+1 + newoutcount > sizeof(con->outbuf))
break;
memcpy(buffer, "PRIVMSG ", 8);
memcpy(buffer+8, to.address.irc.user, unamelen);
memcpy(buffer+8+unamelen, " :#", 3);
lenofs = buffer+8+unamelen+3;
sprintf(lenofs, "%03x", fulllen);
}
while(length && packed < 400 && packed+newoutcount < sizeof(con->outbuf)-2) //make sure there's always space
{
switch(*(unsigned char*)data)
{
case '\\':
buffer[packed++] = '\\';
buffer[packed++] = '\\';
break;
case '\n':
buffer[packed++] = '\\';
buffer[packed++] = 'n';
break;
case '\r':
buffer[packed++] = '\\';
buffer[packed++] = 'r';
break;
case '\0':
buffer[packed++] = '\\';
buffer[packed++] = '0';
break;
default:
buffer[packed++] = *(unsigned char*)data;
break;
}
length--;
data = (char*)data + 1;
}
buffer[packed++] = '\r';
buffer[packed++] = '\n';
newoutcount += packed;
packed = 0;
}
if (!length)
{
//only if we flushed all
con->outbufcount = newoutcount;
}
//try and flush it
length = send(con->generic.thesocket, con->outbuf, con->outbufcount, 0);
if (length > 0)
{
memmove(con->outbuf, con->outbuf+length, con->outbufcount-length);
con->outbufcount -= length;
}
return true;
}
void FTENET_IRCConnect_Close(ftenet_generic_connection_t *gcon)
{
ftenet_ircconnect_connection_t *con = (ftenet_ircconnect_connection_t *)gcon;
ftenet_ircconnect_stream_t *st;
while(con->streams)
{
st = con->streams;
con->streams = st->next;
Z_Free(st);
}
FTENET_Generic_Close(gcon);
}
struct ftenet_generic_connection_s *FTENET_IRCConnect_EstablishConnection(qboolean isserver, const char *address)
{
//this is written to support either ipv4 or ipv6, depending on the remote addr.
ftenet_ircconnect_connection_t *newcon;
netadr_t adr;
if (!NET_StringToAdr(address, 6667, &adr))
return NULL; //couldn't resolve the name
newcon = Z_Malloc(sizeof(*newcon));
if (newcon)
{
newcon->generic.name = "IRCConnect";
newcon->generic.GetPacket = FTENET_IRCConnect_GetPacket;
newcon->generic.SendPacket = FTENET_IRCConnect_SendPacket;
newcon->generic.Close = FTENET_IRCConnect_Close;
newcon->generic.islisten = isserver;
newcon->generic.addrtype[0] = NA_IRC;
newcon->generic.addrtype[1] = NA_INVALID;
newcon->generic.thesocket = INVALID_SOCKET;
newcon->ircserver = adr;
return &newcon->generic;
}
else
{
return NULL;
}
}
#endif
#ifdef HAVE_WEBSOCKCL
#include <ppapi/c/pp_errors.h>
#include <ppapi/c/pp_resource.h>
#include <ppapi/c/ppb_core.h>
#include <ppapi/c/ppb_websocket.h>
#include <ppapi/c/ppb_var.h>
#include <ppapi/c/ppb_instance.h>
extern PPB_Core *ppb_core;
extern PPB_WebSocket *ppb_websocket_interface;
extern PPB_Var *ppb_var_interface;
extern PP_Instance pp_instance;
typedef struct
{
ftenet_generic_connection_t generic;
PP_Resource sock;
netadr_t remoteadr;
qboolean havepacket;
struct PP_Var incomingpacket;
qboolean failed;
} ftenet_websocket_connection_t;
static void websocketgot(void *user_data, int32_t result)
{
ftenet_websocket_connection_t *wsc = user_data;
if (result == PP_OK)
{
wsc->havepacket = true;
}
else
{
Sys_Printf("%s: %i\n", __func__, result);
wsc->failed = true;
}
}
static void websocketconnected(void *user_data, int32_t result)
{
ftenet_websocket_connection_t *wsc = user_data;
if (result == PP_OK)
{
int res;
//we got a successful connection, enable reception.
struct PP_CompletionCallback ccb = {websocketgot, wsc, PP_COMPLETIONCALLBACK_FLAG_OPTIONAL};
res = ppb_websocket_interface->ReceiveMessage(wsc->sock, &wsc->incomingpacket, ccb);
if (res != PP_OK_COMPLETIONPENDING)
websocketgot(wsc, res);
}
else
{
Sys_Printf("%s: %i\n", __func__, result);
//some sort of error connecting, make it timeout now
wsc->failed = true;
}
}
static void websocketclosed(void *user_data, int32_t result)
{
ftenet_websocket_connection_t *wsc = user_data;
if (wsc->havepacket)
{
wsc->havepacket = false;
ppb_var_interface->Release(wsc->incomingpacket);
}
ppb_core->ReleaseResource(wsc->sock);
// Z_Free(wsc);
}
static void FTENET_WebSocket_Close(ftenet_generic_connection_t *gcon)
{
int res;
/*meant to free the memory too, in this case we get the callback to do it*/
ftenet_websocket_connection_t *wsc = (void*)gcon;
struct PP_CompletionCallback ccb = {websocketclosed, wsc, PP_COMPLETIONCALLBACK_FLAG_NONE};
ppb_websocket_interface->Close(wsc->sock, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(), ccb);
}
static qboolean FTENET_WebSocket_GetPacket(ftenet_generic_connection_t *gcon)
{
ftenet_websocket_connection_t *wsc = (void*)gcon;
int res;
int len = 0;
if (wsc->havepacket)
{
unsigned char *utf8 = (unsigned char *)ppb_var_interface->VarToUtf8(wsc->incomingpacket, &len);
unsigned char *out = (unsigned char *)net_message_buffer;
wsc->havepacket = false;
memcpy(&net_from, &wsc->remoteadr, sizeof(net_from));
while(len && out < net_message_buffer + sizeof(net_message_buffer))
{
if ((*utf8 & 0xe0)==0xc0 && len > 1)
{
*out = ((utf8[0] & 0x1f)<<6) | ((utf8[1] & 0x3f)<<0);
utf8+=2;
len -= 2;
}
else if (*utf8 & 0x80)
{
*out = '?';
utf8++;
len -= 1;
}
else
{
*out = utf8[0];
utf8++;
len -= 1;
}
out++;
}
net_message.cursize = out - net_message_buffer;
ppb_var_interface->Release(wsc->incomingpacket);
if (!wsc->failed)
{
//get the next one
struct PP_CompletionCallback ccb = {websocketgot, wsc, PP_COMPLETIONCALLBACK_FLAG_OPTIONAL};
res = ppb_websocket_interface->ReceiveMessage(wsc->sock, &wsc->incomingpacket, ccb);
if (res != PP_OK_COMPLETIONPENDING)
websocketgot(wsc, res);
}
if (len)
{
char adr[64];
Con_TPrintf (TL_OVERSIZEPACKETFROM, NET_AdrToString (adr, sizeof(adr), net_from));
return false;
}
return true;
}
return false;
}
static qboolean FTENET_WebSocket_SendPacket(ftenet_generic_connection_t *gcon, int length, void *data, netadr_t to)
{
ftenet_websocket_connection_t *wsc = (void*)gcon;
int res;
int outchars = 0;
unsigned char outdata[length*2+1];
unsigned char *out=outdata, *in=data;
if (wsc->failed)
return false;
while(length-->0)
{
/*FIXME: do we need this code?*/
if (!*in)
{
*out++ = 0xc0 | (0x100 >> 6);
*out++ = 0x80 | (0x100 & 0x3f);
}
else if (*in >= 0x80)
{
*out++ = 0xc0 | (*in >> 6);
*out++ = 0x80 | (*in & 0x3f);
}
else
*out++ = *in;
in++;
outchars++;
}
*out = 0;
struct PP_Var str = ppb_var_interface->VarFromUtf8(outdata, out - outdata);
res = ppb_websocket_interface->SendMessage(wsc->sock, str);
// Sys_Printf("FTENET_WebSocket_SendPacket: result %i\n", res);
ppb_var_interface->Release(str);
return true;
}
/*nacl websockets implementation...*/
static ftenet_generic_connection_t *FTENET_WebSocket_EstablishConnection(qboolean isserver, const char *address)
{
ftenet_websocket_connection_t *newcon;
netadr_t adr;
PP_Resource newsocket;
if (isserver || !ppb_websocket_interface)
{
return NULL;
}
if (!NET_StringToAdr(address, &adr))
return NULL; //couldn't resolve the name
newcon = Z_Malloc(sizeof(*newcon));
if (newcon)
{
struct PP_CompletionCallback ccb = {websocketconnected, newcon, PP_COMPLETIONCALLBACK_FLAG_NONE};
newsocket = ppb_websocket_interface->Create(pp_instance);
struct PP_Var str = ppb_var_interface->VarFromUtf8(adr.address.websocketurl, strlen(adr.address.websocketurl));
ppb_websocket_interface->Connect(newsocket, str, NULL, 0, ccb);
ppb_var_interface->Release(str);
newcon->generic.name = "WebSocket";
newcon->generic.GetPacket = FTENET_WebSocket_GetPacket;
newcon->generic.SendPacket = FTENET_WebSocket_SendPacket;
newcon->generic.Close = FTENET_WebSocket_Close;
newcon->generic.islisten = isserver;
newcon->generic.addrtype[0] = NA_WEBSOCKET;
newcon->generic.addrtype[1] = NA_INVALID;
newcon->generic.thesocket = INVALID_SOCKET;
newcon->sock = newsocket;
newcon->remoteadr = adr;
return &newcon->generic;
}
return NULL;
}
#endif
/*firstsock is a cookie*/
int NET_GetPacket (netsrc_t netsrc, int firstsock)
{
ftenet_connections_t *collection;
if (netsrc == NS_SERVER)
{
#ifdef CLIENTONLY
Sys_Error("NET_GetPacket: Bad netsrc");
collection = NULL;
#else
collection = svs.sockets;
#endif
}
else
{
#ifdef SERVERONLY
Sys_Error("NET_GetPacket: Bad netsrc");
collection = NULL;
#else
collection = cls.sockets;
#endif
}
if (!collection)
return -1;
while (firstsock < MAX_CONNECTIONS)
{
if (!collection->conn[firstsock])
break;
if (collection->conn[firstsock]->GetPacket(collection->conn[firstsock]))
{
if (net_fakeloss.value)
{
if (frandom () < net_fakeloss.value)
continue;
}
net_from.connum = firstsock+1;
return firstsock;
}
firstsock += 1;
}
return -1;
}
int NET_LocalAddressForRemote(ftenet_connections_t *collection, netadr_t *remote, netadr_t *local, int idx)
{
if (!remote->connum)
return 0;
if (!collection->conn[remote->connum-1])
return 0;
if (!collection->conn[remote->connum-1]->GetLocalAddress)
return 0;
return collection->conn[remote->connum-1]->GetLocalAddress(collection->conn[remote->connum-1], local, idx);
}
void NET_SendPacket (netsrc_t netsrc, int length, void *data, netadr_t to)
{
char buffer[64];
ftenet_connections_t *collection;
int i;
if (netsrc == NS_SERVER)
{
#ifdef CLIENTONLY
Sys_Error("NET_GetPacket: Bad netsrc");
return;
#else
collection = svs.sockets;
#endif
}
else
{
#ifdef SERVERONLY
Sys_Error("NET_GetPacket: Bad netsrc");
return;
#else
collection = cls.sockets;
#endif
}
if (!collection)
return;
if (net_fakeloss.value)
{
if (frandom () < net_fakeloss.value)
return;
}
if (to.connum)
{
if (collection->conn[to.connum-1])
if (collection->conn[to.connum-1]->SendPacket(collection->conn[to.connum-1], length, data, to))
return;
}
for (i = 0; i < MAX_CONNECTIONS; i++)
{
if (!collection->conn[i])
continue;
if (collection->conn[i]->SendPacket(collection->conn[i], length, data, to))
return;
}
Con_Printf("No route to %s - try reconnecting\n", NET_AdrToString(buffer, sizeof(buffer), to));
}
qboolean NET_EnsureRoute(ftenet_connections_t *collection, char *routename, char *host, qboolean islisten)
{
netadr_t adr;
NET_StringToAdr(host, 0, &adr);
switch(adr.type)
{
#ifdef HAVE_WEBSOCKCL
case NA_WEBSOCKET:
if (!FTENET_AddToCollection(collection, routename, host, FTENET_WebSocket_EstablishConnection, islisten))
return false;
break;
#endif
#ifdef TCPCONNECT
case NA_TCP:
if (!FTENET_AddToCollection(collection, routename, host, FTENET_TCP4Connect_EstablishConnection, islisten))
return false;
break;
#ifdef IPPROTO_IPV6
case NA_TCPV6:
if (!FTENET_AddToCollection(collection, routename, host, FTENET_TCP6Connect_EstablishConnection, islisten))
return false;
break;
#endif
#endif
#ifdef IRCCONNECT
case NA_IRC:
if (!FTENET_AddToCollection(collection, routename, host, FTENET_IRCConnect_EstablishConnection, islisten))
return false;
break;
#endif
default:
//not recognised, or not needed
break;
}
return true;
}
void NET_PrintAddresses(ftenet_connections_t *collection)
{
int i;
int adrno, adrcount=1;
netadr_t adr;
char adrbuf[MAX_ADR_SIZE];
if (!collection)
return;
for (i = 0; i < MAX_CONNECTIONS; i++)
{
if (!collection->conn[i])
continue;
if (collection->conn[i]->GetLocalAddress)
{
for (adrno = 0, adrcount=1; (adrcount = collection->conn[i]->GetLocalAddress(collection->conn[i], &adr, adrno)) && adrno < adrcount; adrno++)
{
Con_Printf("net address: %s\n", NET_AdrToString(adrbuf, sizeof(adrbuf), adr));
}
}
else
Con_Printf("%s\n", collection->conn[i]->name);
}
}
//=============================================================================
int TCP_OpenStream (netadr_t remoteaddr)
{
#ifndef HAVE_TCP
return INVALID_SOCKET;
#else
unsigned long _true = true;
int newsocket;
int temp;
struct sockaddr_qstorage qs;
// struct sockaddr_qstorage loc;
temp = NetadrToSockadr(&remoteaddr, &qs);
if ((newsocket = socket (((struct sockaddr_in*)&qs)->sin_family, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)
return INVALID_SOCKET;
// memset(&loc, 0, sizeof(loc));
// ((struct sockaddr*)&loc)->sa_family = ((struct sockaddr*)&loc)->sa_family;
// bind(newsocket, (struct sockaddr *)&loc, ((struct sockaddr_in*)&qs)->sin_family == AF_INET?sizeof(struct sockaddr_in):sizeof(struct sockaddr_in6));
if (connect(newsocket, (struct sockaddr *)&qs, temp) == INVALID_SOCKET)
{
int err = qerrno;
if (err == EADDRNOTAVAIL)
{
char buf[128];
NET_AdrToString(buf, sizeof(buf), remoteaddr);
if (remoteaddr.port == 0 && (remoteaddr.type == NA_IP || remoteaddr.type == NA_IPV6))
Con_Printf ("TCP_OpenStream: no port specified\n");
else
Con_Printf ("TCP_OpenStream: invalid address trying to connect to %s\n", buf);
}
else
Con_Printf ("TCP_OpenStream: connect: error %i\n", err);
closesocket(newsocket);
return INVALID_SOCKET;
}
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(qerrno));
return newsocket;
#endif
}
int TCP_OpenListenSocket (int port)
{
#ifndef HAVE_TCP
return INVALID_SOCKET;
#else
int newsocket;
struct sockaddr_in address;
unsigned long _true = true;
int i;
int maxport = port + 100;
if ((newsocket = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)
return INVALID_SOCKET;
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("TCP_OpenListenSocket: ioctl FIONBIO: %s", strerror(qerrno));
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)
{
Con_Printf("Cannot bind tcp socket\n");
closesocket(newsocket);
return INVALID_SOCKET;
}
port++;
if (port > maxport)
{
Con_Printf("Cannot bind tcp socket\n");
closesocket(newsocket);
return INVALID_SOCKET;
}
}
else
break;
}
if (listen(newsocket, 1) == INVALID_SOCKET)
{
Con_Printf("Cannot listen on tcp socket\n");
closesocket(newsocket);
return INVALID_SOCKET;
}
return newsocket;
#endif
}
#if defined(SV_MASTER) || defined(CL_MASTER)
int UDP_OpenSocket (int port, qboolean bcast)
{
SOCKET newsocket;
struct sockaddr_in address;
unsigned long _true = true;
int i;
int maxport = port + 100;
if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET)
return INVALID_SOCKET;
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 INVALID_SOCKET;
}
}
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 err;
SOCKET newsocket;
struct sockaddr_in6 address;
unsigned long _true = true;
// int i;
int maxport = port + 100;
memset(&address, 0, sizeof(address));
if ((newsocket = socket (PF_INET6, SOCK_DGRAM, 0)) == INVALID_SOCKET)
{
Con_Printf("IPV6 is not supported: %s\n", strerror(qerrno));
return INVALID_SOCKET;
}
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 INVALID_SOCKET;
// }
}
#ifdef IPV6_V6ONLY
setsockopt(newsocket, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&_true, sizeof(_true));
#endif
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
memset(&address.sin6_addr, 0, sizeof(struct in6_addr));
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)
{
err = qerrno;
Con_Printf ("UDP6_OpenSocket: bind: (%i) %s", err, strerror(err));
closesocket(newsocket);
return INVALID_SOCKET;
}
port++;
if (port > maxport)
{
err = qerrno;
Con_Printf ("UDP6_OpenSocket: bind: (%i) %s", err, strerror(err));
closesocket(newsocket);
return INVALID_SOCKET;
}
}
else
break;
}
return newsocket;
}
#endif
void UDP_CloseSocket (int socket)
{
closesocket(socket);
}
int IPX_OpenSocket (int port, qboolean bcast)
{
#ifndef USEIPX
return 0;
#else
SOCKET newsocket;
struct sockaddr_ipx address;
u_long _true = 1;
if ((newsocket = socket (PF_IPX, SOCK_DGRAM, NSPROTO_IPX)) == INVALID_SOCKET)
{
if (qerrno != EAFNOSUPPORT)
Con_Printf ("WARNING: IPX_Socket: socket: %i\n", qerrno);
return INVALID_SOCKET;
}
// make it non-blocking
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
{
Con_Printf ("WARNING: IPX_Socket: ioctl FIONBIO: %i\n", qerrno);
return INVALID_SOCKET;
}
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: %i\n", qerrno);
return INVALID_SOCKET;
}
}
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 INVALID_SOCKET;
}
return newsocket;
#endif
}
void IPX_CloseSocket (int socket)
{
#ifdef USEIPX
closesocket(socket);
#endif
}
#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.
#ifndef CLIENTONLY
qboolean NET_Sleep(int msec, qboolean stdinissocket)
{
#ifdef HAVE_PACKET
struct timeval timeout;
fd_set fdset;
int maxfd;
int con, sock;
FD_ZERO(&fdset);
if (stdinissocket)
FD_SET(0, &fdset); //stdin tends to be socket 0
maxfd = 0;
if (svs.sockets)
for (con = 0; con < MAX_CONNECTIONS; con++)
{
if (!svs.sockets->conn[con])
continue;
if (svs.sockets->conn[con]->SetReceiveFDSet)
{
sock = svs.sockets->conn[con]->SetReceiveFDSet(svs.sockets->conn[con], &fdset);
if (sock > maxfd)
maxfd = sock;
}
else
{
sock = svs.sockets->conn[con]->thesocket;
if (sock != INVALID_SOCKET)
{
FD_SET(sock, &fdset); // network socket
if (sock > maxfd)
maxfd = sock;
}
}
}
timeout.tv_sec = msec/1000;
timeout.tv_usec = (msec%1000)*1000;
select(maxfd+1, &fdset, NULL, NULL, &timeout);
if (stdinissocket)
return FD_ISSET(0, &fdset);
#endif
return true;
}
#endif
void NET_GetLocalAddress (int socket, netadr_t *out)
{
#ifndef HAVE_PACKET
out->type = NA_INVALID;
#else
char buff[512];
char adrbuf[MAX_ADR_SIZE];
struct sockaddr_qstorage address;
int namelen;
netadr_t adr = {0};
qboolean notvalid = false;
strcpy(buff, "localhost");
gethostname(buff, 512);
buff[512-1] = 0;
if (!NET_StringToAdr (buff, 0, &adr)) //urm
NET_StringToAdr ("127.0.0.1", 0, &adr);
namelen = sizeof(address);
if (getsockname (socket, (struct sockaddr *)&address, &namelen) == -1)
{
notvalid = true;
NET_StringToSockaddr("0.0.0.0", 0, (struct sockaddr_qstorage *)&address, NULL, NULL);
// Sys_Error ("NET_Init: getsockname:", strerror(qerrno));
}
SockadrToNetadr(&address, out);
if (out->type == NA_IP)
{
if (!*(int*)out->address.ip) //socket was set to auto
*(int *)out->address.ip = *(int *)adr.address.ip; //change it to what the machine says it is, rather than the socket.
}
if (notvalid)
Con_Printf("Couldn't detect local ip\n");
else
Con_TPrintf(TL_IPADDRESSIS, NET_AdrToString (adrbuf, sizeof(adrbuf), *out) );
#endif
}
#ifndef CLIENTONLY
void SVNET_AddPort_f(void)
{
netadr_t adr;
char *s = Cmd_Argv(1);
//just in case
if (!svs.sockets)
{
svs.sockets = FTENET_CreateCollection(true);
#ifndef SERVERONLY
FTENET_AddToCollection(svs.sockets, "SVLoopback", "27500", FTENET_Loop_EstablishConnection, true);
#endif
}
#ifdef HAVE_IPV4
NET_PortToAdr(AF_INET, s, &adr);
#else
adr.type = NA_INVALID;
#endif
switch(adr.type)
{
#ifdef HAVE_IPV4
case NA_IP:
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_UDP4_EstablishConnection, true);
break;
#endif
#ifdef IPPROTO_IPV6
case NA_IPV6:
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_UDP6_EstablishConnection, true);
break;
#endif
case NA_IPX:
#ifdef USEIPX
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_IPX_EstablishConnection, true);
#endif
break;
#ifdef IRCCONNECT
case NA_IRC:
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_IRCConnect_EstablishConnection, true);
break;
#endif
#ifdef IRCCONNECT
case NA_TCP:
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_TCP4Connect_EstablishConnection, true);
break;
#ifdef IPPROTO_IPV6
case NA_TCPV6:
FTENET_AddToCollection(svs.sockets, NULL, s, FTENET_TCP6Connect_EstablishConnection, true);
break;
#endif
#endif
// warning: enumeration value <20>NA_*<2A> not handled in switch
case NA_WEBSOCKET:
case NA_INVALID:
case NA_LOOPBACK:
case NA_BROADCAST_IP:
case NA_BROADCAST_IP6:
case NA_BROADCAST_IPX:
break;
}
}
#endif
/*
====================
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
Cvar_Register(&net_hybriddualstack, "networking");
Cvar_Register(&net_fakeloss, "networking");
#ifndef CLIENTONLY
Cmd_AddCommand("sv_addport", SVNET_AddPort_f);
#endif
}
#ifndef SERVERONLY
void NET_InitClient(void)
{
const char *port;
int p;
port = STRINGIFY(PORT_QWCLIENT);
p = COM_CheckParm ("-port");
if (p && p < com_argc)
{
port = com_argv[p+1];
}
p = COM_CheckParm ("-clport");
if (p && p < com_argc)
{
port = com_argv[p+1];
}
cls.sockets = FTENET_CreateCollection(false);
#ifndef CLIENTONLY
FTENET_AddToCollection(cls.sockets, "CLLoopback", port, FTENET_Loop_EstablishConnection, false);
#endif
#ifdef HAVE_IPV4
FTENET_AddToCollection(cls.sockets, "CLUDP4", port, FTENET_UDP4_EstablishConnection, true);
#endif
#ifdef IPPROTO_IPV6
FTENET_AddToCollection(cls.sockets, "CLUDP6", port, FTENET_UDP6_EstablishConnection, true);
#endif
#ifdef USEIPX
FTENET_AddToCollection(cls.sockets, "CLIPX", port, FTENET_IPX_EstablishConnection, true);
#endif
//
// init the message buffer
//
net_message.maxsize = sizeof(net_message_buffer);
net_message.data = net_message_buffer;
Con_TPrintf(TL_CLIENTPORTINITED);
}
#endif
#ifndef CLIENTONLY
#ifndef CLIENTONLY
#ifdef HAVE_IPV4
void SV_Tcpport_Callback(struct cvar_s *var, char *oldvalue)
{
FTENET_AddToCollection(svs.sockets, "SVTCP4", var->string, FTENET_TCP4Connect_EstablishConnection, true);
}
#endif
#ifdef IPPROTO_IPV6
void SV_Tcpport6_Callback(struct cvar_s *var, char *oldvalue)
{
FTENET_AddToCollection(svs.sockets, "SVTCP6", var->string, FTENET_TCP6Connect_EstablishConnection, true);
}
#endif
#ifdef HAVE_IPV4
void SV_Port_Callback(struct cvar_s *var, char *oldvalue)
{
FTENET_AddToCollection(svs.sockets, "SVUDP4", var->string, FTENET_UDP4_EstablishConnection, true);
}
#endif
#ifdef IPPROTO_IPV6
void SV_PortIPv6_Callback(struct cvar_s *var, char *oldvalue)
{
FTENET_AddToCollection(svs.sockets, "SVUDP6", var->string, FTENET_UDP6_EstablishConnection, true);
}
#endif
#ifdef USEIPX
void SV_PortIPX_Callback(struct cvar_s *var, char *oldvalue)
{
FTENET_AddToCollection(svs.sockets, "SVIPX", var->string, FTENET_IPX_EstablishConnection, true);
}
#endif
#endif
void NET_CloseServer(void)
{
allowconnects = false;
FTENET_CloseCollection(svs.sockets);
svs.sockets = NULL;
}
void NET_InitServer(void)
{
char *port;
port = STRINGIFY(PORT_QWSERVER);
if (sv_listen_nq.value || sv_listen_dp.value || sv_listen_qw.value || sv_listen_q3.value)
{
if (!svs.sockets)
{
svs.sockets = FTENET_CreateCollection(true);
#ifndef SERVERONLY
FTENET_AddToCollection(svs.sockets, "SVLoopback", port, FTENET_Loop_EstablishConnection, true);
#endif
}
allowconnects = true;
#ifdef HAVE_IPV4
Cvar_ForceCallback(&sv_port_ipv4);
#endif
#ifdef IPPROTO_IPV6
Cvar_ForceCallback(&sv_port_ipv6);
#endif
#ifdef USEIPX
Cvar_ForceCallback(&sv_port_ipx);
#endif
#ifdef TCPCONNECT
Cvar_ForceCallback(&sv_port_tcp);
#ifdef IPPROTO_IPV6
Cvar_ForceCallback(&sv_port_tcp6);
#endif
#endif
}
else
{
NET_CloseServer();
#ifndef SERVERONLY
svs.sockets = FTENET_CreateCollection(true);
FTENET_AddToCollection(svs.sockets, "SVLoopback", port, FTENET_Loop_EstablishConnection, true);
#endif
}
//
// 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
FTENET_CloseCollection(cls.sockets);
cls.sockets = NULL;
#endif
#ifdef _WIN32
#ifdef SERVERTONLY
if (!serverthreadID) //running as subsystem of client. Don't close all of it's sockets too.
#endif
WSACleanup ();
#endif
}
#ifdef HAVE_TCP
typedef struct {
vfsfile_t funcs;
int sock;
char readbuffer[65536];
int readbuffered;
} tcpfile_t;
void VFSTCP_Error(tcpfile_t *f)
{
if (f->sock != INVALID_SOCKET)
{
closesocket(f->sock);
f->sock = INVALID_SOCKET;
}
}
int VFSTCP_ReadBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
{
tcpfile_t *tf = (tcpfile_t*)file;
int len;
int trying;
if (tf->sock != INVALID_SOCKET)
{
trying = sizeof(tf->readbuffer) - tf->readbuffered;
if (trying > 1500)
trying = 1500;
len = recv(tf->sock, tf->readbuffer + tf->readbuffered, trying, 0);
if (len == -1)
{
if (errno != EWOULDBLOCK)
printf("socket error\n");
//fixme: figure out wouldblock or error
}
else if (len == 0 && trying != 0)
{
VFSTCP_Error(tf);
}
else
{
tf->readbuffered += len;
}
}
//return a partially filled buffer.
if (bytestoread > tf->readbuffered)
bytestoread = tf->readbuffered;
if (bytestoread < 0)
VFSTCP_Error(tf);
if (bytestoread > 0)
{
memcpy(buffer, tf->readbuffer, bytestoread);
tf->readbuffered -= bytestoread;
memmove(tf->readbuffer, tf->readbuffer+bytestoread, tf->readbuffered);
return bytestoread;
}
else
{
if (tf->sock == INVALID_SOCKET)
return -1; //signal an error
return 0; //signal nothing available
}
}
int VFSTCP_WriteBytes (struct vfsfile_s *file, const void *buffer, int bytestoread)
{
tcpfile_t *tf = (tcpfile_t*)file;
int len;
if (tf->sock == INVALID_SOCKET)
return 0;
len = send(tf->sock, buffer, bytestoread, 0);
if (len == -1 || len == 0)
{
VFSTCP_Error(tf);
return 0;
}
return len;
}
qboolean VFSTCP_Seek (struct vfsfile_s *file, unsigned long pos)
{
VFSTCP_Error((tcpfile_t*)file);
return false;
}
unsigned long VFSTCP_Tell (struct vfsfile_s *file)
{
VFSTCP_Error((tcpfile_t*)file);
return 0;
}
unsigned long VFSTCP_GetLen (struct vfsfile_s *file)
{
return 0;
}
void VFSTCP_Close (struct vfsfile_s *file)
{
VFSTCP_Error((tcpfile_t*)file);
Z_Free(file);
}
vfsfile_t *FS_OpenTCP(const char *name)
{
tcpfile_t *newf;
int sock;
netadr_t adr = {0};
if (NET_StringToAdr(name, 0, &adr))
{
sock = TCP_OpenStream(adr);
if (sock == INVALID_SOCKET)
return NULL;
newf = Z_Malloc(sizeof(*newf));
newf->sock = sock;
newf->funcs.Close = VFSTCP_Close;
newf->funcs.Flush = NULL;
newf->funcs.GetLen = VFSTCP_GetLen;
newf->funcs.ReadBytes = VFSTCP_ReadBytes;
newf->funcs.Seek = VFSTCP_Seek;
newf->funcs.Tell = VFSTCP_Tell;
newf->funcs.WriteBytes = VFSTCP_WriteBytes;
newf->funcs.seekingisabadplan = true;
return &newf->funcs;
}
else
return NULL;
}
#elif 0 //defined(HAVE_WEBSOCKCL)
This code is disabled.
I cannot provide a reliable mechanism over chrome/nacls websockets at this time.
Some module within the ppapi/nacl/chrome stack refuses to forward the data when stressed.
All I can determine is that the connection has a gap.
Hopefully this should be fixed by pepper_19.
As far as Im aware, this and the relevent code in QTV should be functionally complete.
typedef struct
{
vfsfile_t funcs;
PP_Resource sock;
unsigned char readbuffer[65536];
int readbuffered;
qboolean havepacket;
struct PP_Var incomingpacket;
qboolean failed;
} tcpfile_t;
static void tcp_websocketgot(void *user_data, int32_t result)
{
tcpfile_t *wsc = user_data;
if (result == PP_OK)
{
if (wsc->incomingpacket.type == PP_VARTYPE_UNDEFINED)
{
Con_Printf("ERROR: %s: var was not set by PPAPI. Data has been lost.\n", __func__);
wsc->failed = true;
}
wsc->havepacket = true;
}
else
{
Sys_Printf("%s: %i\n", __func__, result);
wsc->failed = true;
}
}
static void tcp_websocketconnected(void *user_data, int32_t result)
{
tcpfile_t *wsc = user_data;
if (result == PP_OK)
{
int res;
//we got a successful connection, enable reception.
struct PP_CompletionCallback ccb = {tcp_websocketgot, wsc, PP_COMPLETIONCALLBACK_FLAG_NONE};
res = ppb_websocket_interface->ReceiveMessage(wsc->sock, &wsc->incomingpacket, ccb);
if (res != PP_OK_COMPLETIONPENDING)
tcp_websocketgot(wsc, res);
}
else
{
Sys_Printf("%s: %i\n", __func__, result);
//some sort of error connecting, make it timeout now
wsc->failed = true;
}
}
static void tcp_websocketclosed(void *user_data, int32_t result)
{
tcpfile_t *wsc = user_data;
wsc->failed = true;
if (wsc->havepacket)
{
wsc->havepacket = false;
ppb_var_interface->Release(wsc->incomingpacket);
}
ppb_core->ReleaseResource(wsc->sock);
wsc->sock = 0;
// Z_Free(wsc);
}
void VFSTCP_Close (struct vfsfile_s *file)
{
/*meant to free the memory too, in this case we get the callback to do it*/
tcpfile_t *wsc = (void*)file;
struct PP_CompletionCallback ccb = {tcp_websocketclosed, wsc, PP_COMPLETIONCALLBACK_FLAG_NONE};
ppb_websocket_interface->Close(wsc->sock, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(), ccb);
}
int VFSTCP_ReadBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
{
tcpfile_t *wsc = (void*)file;
int res;
if (wsc->havepacket && wsc->readbuffered < bytestoread + 1024)
{
if (wsc->incomingpacket.type == PP_VARTYPE_UNDEFINED)
Con_Printf("PPAPI bug: var is still undefined after being received\n");
else
{
int len = 0;
unsigned char *utf8 = (unsigned char *)ppb_var_interface->VarToUtf8(wsc->incomingpacket, &len);
unsigned char *out = (unsigned char *)wsc->readbuffer + wsc->readbuffered;
wsc->havepacket = false;
Con_Printf("Len: %i\n", len);
while(len && out < wsc->readbuffer + sizeof(wsc->readbuffer))
{
if ((*utf8 & 0xe0)==0xc0 && len > 1)
{
*out = ((utf8[0] & 0x1f)<<6) | ((utf8[1] & 0x3f)<<0);
utf8+=2;
len -= 2;
}
else if (*utf8 & 0x80)
{
*out = '?';
utf8++;
len -= 1;
}
else
{
*out = utf8[0];
utf8++;
len -= 1;
}
out++;
}
if (len)
{
Con_Printf("oh noes! buffer not big enough!\n");
wsc->failed = true;
}
Con_Printf("Old: %i\n", wsc->readbuffered);
wsc->readbuffered = out - wsc->readbuffer;
Con_Printf("New: %i\n", wsc->readbuffered);
ppb_var_interface->Release(wsc->incomingpacket);
wsc->incomingpacket = PP_MakeUndefined();
}
if (!wsc->failed)
{
//get the next one
struct PP_CompletionCallback ccb = {tcp_websocketgot, wsc, PP_COMPLETIONCALLBACK_FLAG_NONE};
res = ppb_websocket_interface->ReceiveMessage(wsc->sock, &wsc->incomingpacket, ccb);
if (res != PP_OK_COMPLETIONPENDING)
tcp_websocketgot(wsc, res);
}
}
if (wsc->readbuffered)
{
// Con_Printf("Reading %i bytes of %i\n", bytestoread, wsc->readbuffered);
if (bytestoread > wsc->readbuffered)
bytestoread = wsc->readbuffered;
memcpy(buffer, wsc->readbuffer, bytestoread);
memmove(wsc->readbuffer, wsc->readbuffer+bytestoread, wsc->readbuffered-bytestoread);
wsc->readbuffered -= bytestoread;
}
else if (wsc->failed)
bytestoread = -1; /*signal eof*/
else
bytestoread = 0;
return bytestoread;
}
int VFSTCP_WriteBytes (struct vfsfile_s *file, const void *buffer, int bytestowrite)
{
tcpfile_t *wsc = (void*)file;
int res;
int outchars = 0;
unsigned char outdata[bytestowrite*2+1];
unsigned char *out=outdata;
const unsigned char *in=buffer;
if (wsc->failed)
return 0;
for(res = 0; res < bytestowrite; res++)
{
/*FIXME: do we need this code?*/
if (!*in)
{
*out++ = 0xc0 | (0x100 >> 6);
*out++ = 0x80 | (0x100 & 0x3f);
}
else if (*in >= 0x80)
{
*out++ = 0xc0 | (*in >> 6);
*out++ = 0x80 | (*in & 0x3f);
}
else
*out++ = *in;
in++;
outchars++;
}
*out = 0;
struct PP_Var str = ppb_var_interface->VarFromUtf8(outdata, out - outdata);
res = ppb_websocket_interface->SendMessage(wsc->sock, str);
// Sys_Printf("FTENET_WebSocket_SendPacket: result %i\n", res);
ppb_var_interface->Release(str);
if (res == PP_OK)
return bytestowrite;
return 0;
}
qboolean VFSTCP_Seek (struct vfsfile_s *file, unsigned long pos)
{
//no seeking allowed
tcpfile_t *wsc = (void*)file;
Con_Printf("tcp seek?\n");
wsc->failed = true;
return false;
}
unsigned long VFSTCP_Tell (struct vfsfile_s *file)
{
//no telling allowed
tcpfile_t *wsc = (void*)file;
Con_Printf("tcp tell?\n");
wsc->failed = true;
return 0;
}
unsigned long VFSTCP_GetLen (struct vfsfile_s *file)
{
return 0;
}
/*nacl websockets implementation...*/
vfsfile_t *FS_OpenTCP(const char *name)
{
tcpfile_t *newf;
netadr_t adr;
if (!ppb_websocket_interface)
{
return NULL;
}
if (!NET_StringToAdr(name, &adr))
return NULL; //couldn't resolve the name
newf = Z_Malloc(sizeof(*newf));
if (newf)
{
struct PP_CompletionCallback ccb = {tcp_websocketconnected, newf, PP_COMPLETIONCALLBACK_FLAG_NONE};
newf->sock = ppb_websocket_interface->Create(pp_instance);
struct PP_Var str = ppb_var_interface->VarFromUtf8(adr.address.websocketurl, strlen(adr.address.websocketurl));
ppb_websocket_interface->Connect(newf->sock, str, NULL, 0, ccb);
ppb_var_interface->Release(str);
newf->funcs.Close = VFSTCP_Close;
newf->funcs.Flush = NULL;
newf->funcs.GetLen = VFSTCP_GetLen;
newf->funcs.ReadBytes = VFSTCP_ReadBytes;
newf->funcs.Seek = VFSTCP_Seek;
newf->funcs.Tell = VFSTCP_Tell;
newf->funcs.WriteBytes = VFSTCP_WriteBytes;
newf->funcs.seekingisabadplan = true;
return &newf->funcs;
}
return NULL;
}
#else
vfsfile_t *FS_OpenTCP(const char *name)
{
return NULL;
}
#endif
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