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forgot to add it with the IPv6 patch from Pontus

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Nelson Rush 2000-01-09 22:19:33 +00:00
parent 7560771b16
commit 48e4cc464e
1 changed files with 414 additions and 0 deletions
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qw_common/net_udp6.c Normal file
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/*
Copyright (C) 1996-1997 Id Software, Inc.
Portions Copyright (C) 1999,2000 Nelson Rush.
Portions Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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_udp.c
#include "quakedef.h"
#include <stdio.h>
#include <errno.h>
/* Sun's model_t in sys/model.h conflicts w/ Quake's model_t */
#define model_t quakeforgemodel_t
#include <unistd.h>
#include <sys/types.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#undef model_t
#ifdef _WIN32
# include "winquake.h"
# undef EWOULDBLOCK
# define EWOULDBLOCK WSAEWOULDBLOCK
#endif
#ifdef NeXT
#include <libc.h>
#endif
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 512
#endif
netadr_t net_local_adr;
netadr_t net_from;
sizebuf_t net_message;
int net_socket;
#define MAX_UDP_PACKET (MAX_MSGLEN*2)
byte net_message_buffer[MAX_UDP_PACKET];
#ifdef _WIN32
WSADATA winsockdata;
#endif
//=============================================================================
void NetadrToSockadr (netadr_t *a, struct sockaddr_in6 *s)
{
memset (s, 0, sizeof(*s));
s->sin6_family = AF_INET6;
s->sin6_addr.in6_u.u6_addr32[0] = a->ip[0];
s->sin6_addr.in6_u.u6_addr32[1] = a->ip[1];
s->sin6_addr.in6_u.u6_addr32[2] = a->ip[2];
s->sin6_addr.in6_u.u6_addr32[3] = a->ip[3];
s->sin6_port = a->port;
}
void SockadrToNetadr (struct sockaddr_in6 *s, netadr_t *a)
{
a->ip[0] = s->sin6_addr.in6_u.u6_addr32[0];
a->ip[1] = s->sin6_addr.in6_u.u6_addr32[1];
a->ip[2] = s->sin6_addr.in6_u.u6_addr32[2];
a->ip[3] = s->sin6_addr.in6_u.u6_addr32[3];
a->port = s->sin6_port;
}
qboolean NET_CompareBaseAdr (netadr_t a, netadr_t b)
{
if (a.ip[0] == b.ip[0] && a.ip[1] == b.ip[1] && a.ip[2] == b.ip[2] && a.ip[3] == b.ip[3])
return true;
return false;
}
qboolean NET_CompareAdr (netadr_t a, netadr_t b)
{
if (a.ip[0] == b.ip[0] && a.ip[1] == b.ip[1] && a.ip[2] == b.ip[2] && a.ip[3] == b.ip[3] && a.port == b.port)
return true;
return false;
}
char *NET_AdrToString (netadr_t a)
{
static char s[64];
unsigned short *addr16=(unsigned short *) &(a.ip);
snprintf(s, sizeof(s), "%x:%x:%x:%x:%x:%x:%x:%x.%x", ntohs(addr16[0]), ntohs(addr16[1]), ntohs(addr16[2]), ntohs(addr16[3]),ntohs(addr16[4]), ntohs(addr16[5]), ntohs(addr16[6]), ntohs(addr16[7]), ntohs(a.port));
return s;
}
char *NET_BaseAdrToString (netadr_t a)
{
static char s[64];
unsigned short *addr16=(unsigned short *) &(a.ip);
snprintf(s, sizeof(s), "%x:%x:%x:%x:%x:%x:%x:%x", ntohs(addr16[0]), ntohs(addr16[1]), ntohs(addr16[2]), ntohs(addr16[3]),ntohs(addr16[4]), ntohs(addr16[5]), ntohs(addr16[6]), ntohs(addr16[7]));
return s;
}
/*
=============
NET_StringToAdr
idnewt
idnewt:28000
192.246.40.70
192.246.40.70:28000
=============
*/
qboolean NET_StringToAdr (char *s, netadr_t *a)
{
struct addrinfo hints;
struct addrinfo *resultp;
char *space;
char *ports=NULL;
char copy[128];
int err;
bzero(&hints,sizeof(hints));
hints.ai_socktype=SOCK_DGRAM;
hints.ai_family=PF_INET6;
strcpy(copy,s);
for (space=copy; *space; space++) {
if (*space==' ')
{
*space=0;
ports=space+1;
}
}
if ((err=getaddrinfo(copy,ports,&hints,&resultp)))
{
// Error
Sys_Error ("NET_StringToAdr: string %s: %s",s, gai_strerror(err));
return 0;
}
SockadrToNetadr ((struct sockaddr_in6 *) resultp->ai_addr, a);
return true;
}
// Returns true if we can't bind the address locally--in other words,
// the IP is NOT one of our interfaces.
qboolean NET_IsClientLegal(netadr_t *adr)
{
#if 0
struct sockaddr_in sadr;
int newsocket;
if (adr->ip[0] == 127)
return false; // no local connections period
NetadrToSockadr (adr, &sadr);
if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
Sys_Error ("NET_IsClientLegal: socket: %s", strerror(errno));
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_GetPacket (void)
{
int ret;
struct sockaddr_in6 from;
unsigned int fromlen;
fromlen = sizeof(from);
ret = recvfrom(net_socket, (void*)net_message_buffer, sizeof(net_message_buffer), 0, (struct sockaddr *)&from, &fromlen);
SockadrToNetadr (&from, &net_from);
if (ret == -1) {
#ifdef _WIN32
int err = WSAGetLastError();
if (err == WSAEMSGSIZE) {
Con_Printf ("Warning: Oversize packet from %s\n",
NET_AdrToString (net_from));
return false;
}
#else /* _WIN32 */
int err = errno;
if (err == ECONNREFUSED)
return false;
#endif /* _WIN32 */
if (err == EWOULDBLOCK)
return false;
Sys_Printf ("NET_GetPacket: %s\n", strerror(err));
return false;
}
net_message.cursize = ret;
if (ret == sizeof(net_message_buffer)) {
Con_Printf ("Oversize packet from %s\n",
NET_AdrToString (net_from));
return false;
}
return ret;
}
//=============================================================================
void NET_SendPacket (int length, void *data, netadr_t to)
{
int ret;
struct sockaddr_in6 addr;
NetadrToSockadr (&to, &addr);
ret = sendto (net_socket, data, length, 0, (struct sockaddr *)&addr, sizeof(addr) );
if (ret == -1) {
#ifdef _WIN32
int err = WSAGetLastError();
#ifndef SERVERONLY
if (err == WSAEADDRNOTAVAIL)
Con_DPrintf("NET_SendPacket Warning: %i\n", err);
#endif
#else /* _WIN32 */
int err = errno;
if (err == ECONNREFUSED)
return;
#endif /* _WIN32 */
if (err == EWOULDBLOCK)
return;
Sys_Printf ("NET_SendPacket: %s\n", strerror(err));
}
}
//=============================================================================
int UDP_OpenSocket (int port)
{
int err;
int newsocket;
struct sockaddr_in6 address;
struct addrinfo hints;
struct addrinfo *resultp;
#ifdef _WIN32
#define ioctl ioctlsocket
unsigned long _true = true;
#else
int _true = 1;
#endif
int i;
if ((newsocket = socket (PF_INET6, SOCK_DGRAM, IPPROTO_UDP)) == -1)
Sys_Error ("UDP_OpenSocket: socket: %s", strerror(errno));
if (ioctl (newsocket, FIONBIO, &_true) == -1)
Sys_Error ("UDP_OpenSocket: ioctl FIONBIO: %s", strerror(errno));
address.sin6_family = AF_INET6;
//ZOID -- check for interface binding option
if ((i = COM_CheckParm("-ip")) != 0 && i < com_argc) {
bzero(&hints,sizeof(hints));
hints.ai_socktype=SOCK_DGRAM;
hints.ai_family=PF_INET6;
if ((err=getaddrinfo(com_argv[i+1],NULL,&hints,&resultp)))
{
Sys_Error ("UDP_OpenSocket: addr %s: %s",com_argv[i+1], gai_strerror(err));
}
memcpy((void *) &address,(void *) resultp->ai_addr,sizeof(address));
// address.sin_addr.s_addr = inet_addr(com_argv[i+1]);
// Con_Printf("Binding to IP Interface Address of %s\n",
// inet_ntop(address.sin6_addr));
} else
address.sin6_addr = in6addr_any;
if (port == PORT_ANY)
address.sin6_port = 0;
else
address.sin6_port = htons((unsigned short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
Sys_Error ("UDP_OpenSocket: bind: %s", strerror(errno));
return newsocket;
}
void NET_GetLocalAddress (void)
{
char buff[MAXHOSTNAMELEN];
struct sockaddr_in6 address;
unsigned int namelen;
if (gethostname(buff, MAXHOSTNAMELEN) == -1)
Sys_Error ("Net_GetLocalAddress: gethostname: %s", strerror(errno));
buff[MAXHOSTNAMELEN-1] = 0;
NET_StringToAdr (buff, &net_local_adr);
namelen = sizeof(address);
if (getsockname (net_socket, (struct sockaddr *)&address, &namelen) == -1)
Sys_Error ("NET_GetLocalAddress: getsockname: %s", strerror(errno));
net_local_adr.port = address.sin6_port;
Con_Printf("IP address %s\n", NET_AdrToString (net_local_adr) );
}
/*
====================
NET_Init
====================
*/
void NET_Init (int port)
{
#ifdef _WIN32
WORD wVersionRequested;
int r;
wVersionRequested = MAKEWORD(1, 1);
r = WSAStartup(MAKEWORD(1, 1), &winsockdata);
if (r)
Sys_Error ("Winsock initialization failed.");
#endif /* _WIN32 */
//
// open the single socket to be used for all communications
//
net_socket = UDP_OpenSocket (port);
//
// init the message buffer
//
net_message.maxsize = sizeof(net_message_buffer);
net_message.data = net_message_buffer;
//
// determine my name & address
//
NET_GetLocalAddress ();
Con_Printf("UDP Initialized\n");
}
/*
====================
NET_Shutdown
====================
*/
void NET_Shutdown (void)
{
#ifdef _WIN32
closesocket(net_socket);
WSACleanup();
#else
close(net_socket);
#endif
}