mirror of
https://github.com/UberGames/GtkRadiant.git
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9998050654
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/ZeroRadiant@183 8a3a26a2-13c4-0310-b231-cf6edde360e5
770 lines
22 KiB
C
770 lines
22 KiB
C
/*
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//===========================================================================
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//
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// Name: l_net_wins.c
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// Function: WinSock
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// Programmer: MrElusive
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// Last update: TTimo: cross-platform version, l_net library
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// Tab Size: 2
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// Notes:
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//===========================================================================
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//#include <windows.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "l_net.h"
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#include "l_net_wins.h"
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <errno.h>
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#include <netdb.h>
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#define SOCKET_ERROR -1
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#define INVALID_SOCKET -1
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extern void WinPrint(char *str, ...);
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#define WinError WinPrint
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#define qtrue 1
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#define qfalse 0
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#define ioctlsocket ioctl
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#define closesocket close
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int WSAGetLastError()
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{
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return errno;
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}
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/*
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typedef struct tag_error_struct
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{
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int errnum;
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LPSTR errstr;
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} ERROR_STRUCT;
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*/
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typedef struct tag_error_struct
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{
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int errnum;
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const char *errstr;
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} ERROR_STRUCT;
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#define NET_NAMELEN 64
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static char my_tcpip_address[NET_NAMELEN];
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#define DEFAULTnet_hostport 26000
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#define MAXHOSTNAMELEN 256
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static int net_acceptsocket = -1; // socket for fielding new connections
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static int net_controlsocket;
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static int net_hostport; // udp port number for acceptsocket
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static int net_broadcastsocket = 0;
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//static qboolean ifbcastinit = qfalse;
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//static struct sockaddr_s broadcastaddr;
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static struct sockaddr_s broadcastaddr;
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static unsigned long myAddr;
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ERROR_STRUCT errlist[] = {
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{EACCES,"EACCES - The address is protected, user is not root"},
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{EAGAIN,"EAGAIN - Operation on non-blocking socket that cannot return immediatly"},
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{EBADF, "EBADF - sockfd is not a valid descriptor"},
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{EFAULT, "EFAULT - The parameter is not in a writable part of the user address space"},
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{EINVAL,"EINVAL - The socket is already bound to an address"},
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{ENOBUFS,"ENOBUFS - not enough memory"},
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{ENOMEM, "ENOMEM - not enough memory"},
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{ENOTCONN, "ENOTCONN - not connected"},
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{ENOTSOCK,"ENOTSOCK - Argument is file descriptor not a socket"},
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{EOPNOTSUPP,"ENOTSUPP - The referenced socket is not of type SOCK_STREAM"},
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{EPERM, "EPERM - Firewall rules forbid connection"},
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{-1, NULL}
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};
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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char *WINS_ErrorMessage(int error)
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{
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int search = 0;
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if (!error) return "No error occurred";
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for (search = 0; errlist[search].errstr; search++)
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{
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if (error == errlist[search].errnum)
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return (char *)errlist[search].errstr;
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} //end for
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return "Unknown error";
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} //end of the function WINS_ErrorMessage
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_Init(void)
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{
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int i;
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struct hostent *local;
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char buff[MAXHOSTNAMELEN];
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struct sockaddr_s addr;
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char *p;
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int r;
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/*
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linux doesn't have anything to initialize for the net
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"Windows .. built for the internet .. the internet .. built with unix"
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*/
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#if 0
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WORD wVersionRequested;
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wVersionRequested = MAKEWORD(2, 2);
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r = WSAStartup (wVersionRequested, &winsockdata);
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if (r)
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{
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WinPrint("Winsock initialization failed.\n");
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return -1;
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}
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#endif
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/*
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i = COM_CheckParm ("-udpport");
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if (i == 0)*/
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net_hostport = DEFAULTnet_hostport;
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/*
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else if (i < com_argc-1)
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net_hostport = Q_atoi (com_argv[i+1]);
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else
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Sys_Error ("WINS_Init: you must specify a number after -udpport");
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*/
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// determine my name & address
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gethostname(buff, MAXHOSTNAMELEN);
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local = gethostbyname(buff);
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myAddr = *(int *)local->h_addr_list[0];
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// if the quake hostname isn't set, set it to the machine name
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// if (Q_strcmp(hostname.string, "UNNAMED") == 0)
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{
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// see if it's a text IP address (well, close enough)
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for (p = buff; *p; p++)
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if ((*p < '0' || *p > '9') && *p != '.')
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break;
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// if it is a real name, strip off the domain; we only want the host
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if (*p)
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{
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for (i = 0; i < 15; i++)
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if (buff[i] == '.')
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break;
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buff[i] = 0;
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}
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// Cvar_Set ("hostname", buff);
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}
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//++timo WTF is that net_controlsocket? it's sole purpose is to retrieve the local IP?
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if ((net_controlsocket = WINS_OpenSocket (0)) == SOCKET_ERROR)
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WinError("WINS_Init: Unable to open control socket\n");
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((struct sockaddr_in *)&broadcastaddr)->sin_family = AF_INET;
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((struct sockaddr_in *)&broadcastaddr)->sin_addr.s_addr = INADDR_BROADCAST;
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((struct sockaddr_in *)&broadcastaddr)->sin_port = htons((u_short)net_hostport);
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WINS_GetSocketAddr (net_controlsocket, &addr);
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strcpy(my_tcpip_address, WINS_AddrToString (&addr));
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p = strrchr (my_tcpip_address, ':');
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if (p) *p = 0;
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WinPrint("Winsock Initialized\n");
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return net_controlsocket;
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} //end of the function WINS_Init
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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char *WINS_MyAddress(void)
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{
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return my_tcpip_address;
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} //end of the function WINS_MyAddress
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void WINS_Shutdown(void)
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{
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//WINS_Listen(0);
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WINS_CloseSocket(net_controlsocket);
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// WSACleanup();
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//
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WinPrint("Winsock Shutdown\n");
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} //end of the function WINS_Shutdown
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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/*
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void WINS_Listen(int state)
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{
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// enable listening
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if (state)
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{
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if (net_acceptsocket != -1)
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return;
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if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
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WinError ("WINS_Listen: Unable to open accept socket\n");
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return;
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}
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// disable listening
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if (net_acceptsocket == -1)
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return;
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WINS_CloseSocket (net_acceptsocket);
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net_acceptsocket = -1;
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} //end of the function WINS_Listen*/
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_OpenSocket(int port)
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{
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int newsocket;
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struct sockaddr_in address;
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u_long _true = 1;
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if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == SOCKET_ERROR)
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{
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WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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if (ioctlsocket (newsocket, FIONBIO, &_true) == SOCKET_ERROR)
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{
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WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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closesocket(newsocket);
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return -1;
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} //end if
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memset((char *) &address, 0, sizeof(address));
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address.sin_family = AF_INET;
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address.sin_addr.s_addr = INADDR_ANY;
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address.sin_port = htons((u_short)port);
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if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
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{
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WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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closesocket(newsocket);
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return -1;
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} //end if
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return newsocket;
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} //end of the function WINS_OpenSocket
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_OpenReliableSocket(int port)
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{
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int newsocket;
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struct sockaddr_in address;
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qboolean _true = 0xFFFFFFFF;
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//IPPROTO_TCP
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//
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if ((newsocket = socket(AF_INET, SOCK_STREAM, 0)) == -1)
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{
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WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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memset((char *) &address, 0, sizeof(address));
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address.sin_family = AF_INET;
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address.sin_addr.s_addr = htonl(INADDR_ANY);
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address.sin_port = htons((u_short)port);
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if (bind(newsocket, (void *)&address, sizeof(address)) == -1)
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{
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WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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closesocket(newsocket);
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return -1;
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} //end if
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//
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if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == -1)
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{
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WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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WinPrint("setsockopt error\n");
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} //end if
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return newsocket;
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} //end of the function WINS_OpenReliableSocket
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_Listen(int socket)
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{
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u_long _true = 1;
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if (ioctlsocket(socket, FIONBIO, &_true) == -1)
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{
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WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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if (listen(socket, SOMAXCONN) == SOCKET_ERROR)
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{
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WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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return 0;
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} //end of the function WINS_Listen
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_Accept(int socket, struct sockaddr_s *addr)
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{
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int addrlen = sizeof (struct sockaddr_s);
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int newsocket;
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qboolean _true = 1;
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newsocket = accept(socket, (struct sockaddr *)addr, &addrlen);
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if (newsocket == INVALID_SOCKET)
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{
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if (errno == EAGAIN) return -1;
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WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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//
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if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
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{
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WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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WinPrint("setsockopt error\n");
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} //end if
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return newsocket;
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} //end of the function WINS_Accept
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_CloseSocket(int socket)
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{
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/*
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if (socket == net_broadcastsocket)
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net_broadcastsocket = 0;
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*/
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// shutdown(socket, SD_SEND);
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if (closesocket(socket) == SOCKET_ERROR)
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{
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WinPrint("WINS_CloseSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return SOCKET_ERROR;
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} //end if
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return 0;
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} //end of the function WINS_CloseSocket
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//===========================================================================
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// this lets you type only as much of the net address as required, using
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// the local network components to fill in the rest
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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static int PartialIPAddress (char *in, struct sockaddr_s *hostaddr)
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{
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char buff[256];
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char *b;
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int addr;
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int num;
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int mask;
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buff[0] = '.';
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b = buff;
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strcpy(buff+1, in);
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if (buff[1] == '.') b++;
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addr = 0;
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mask=-1;
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while (*b == '.')
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{
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num = 0;
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if (*++b < '0' || *b > '9') return -1;
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while (!( *b < '0' || *b > '9'))
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num = num*10 + *(b++) - '0';
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mask<<=8;
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addr = (addr<<8) + num;
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}
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hostaddr->sa_family = AF_INET;
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((struct sockaddr_in *)hostaddr)->sin_port = htons((u_short)net_hostport);
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((struct sockaddr_in *)hostaddr)->sin_addr.s_addr = (myAddr & htonl(mask)) | htonl(addr);
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return 0;
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} //end of the function PartialIPAddress
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_Connect(int socket, struct sockaddr_s *addr)
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{
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int ret;
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u_long _true2 = 0xFFFFFFFF;
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ret = connect(socket, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
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if (ret == SOCKET_ERROR)
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{
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WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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if (ioctlsocket(socket, FIONBIO, &_true2) == -1)
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{
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WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
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return -1;
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} //end if
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return 0;
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} //end of the function WINS_Connect
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_CheckNewConnections(void)
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{
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char buf[4];
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if (net_acceptsocket == -1)
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return -1;
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if (recvfrom(net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL) > 0)
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return net_acceptsocket;
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return -1;
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} //end of the function WINS_CheckNewConnections
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//===========================================================================
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// returns the number of bytes read
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// 0 if no bytes available
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// -1 on failure
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int WINS_Read(int socket, byte *buf, int len, struct sockaddr_s *addr)
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{
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int addrlen = sizeof (struct sockaddr_s);
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int ret;
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if (addr)
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{
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ret = recvfrom(socket, buf, len, 0, (struct sockaddr *)addr, &addrlen);
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if (ret == -1)
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{
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// errno = WSAGetLastError();
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if (errno == EAGAIN || errno == ENOTCONN)
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return 0;
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} //end if
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} //end if
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else
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{
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ret = recv(socket, buf, len, 0);
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// if there's no data on the socket ret == -1 and errno == EAGAIN
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// MSDN states that if ret == 0 the socket has been closed
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// man recv doesn't say anything
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if (ret == 0)
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return -1;
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if (ret == SOCKET_ERROR)
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{
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// errno = WSAGetLastError();
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if (errno == EAGAIN || errno == ENOTCONN)
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return 0;
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} //end if
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} //end else
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if (ret == SOCKET_ERROR)
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|
{
|
|
WinPrint("WINS_Read: %s\n", WINS_ErrorMessage(WSAGetLastError()));
|
|
} //end if
|
|
return ret;
|
|
} //end of the function WINS_Read
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_MakeSocketBroadcastCapable (int socket)
|
|
{
|
|
int i = 1;
|
|
|
|
// make this socket broadcast capable
|
|
if (setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i)) < 0)
|
|
return -1;
|
|
net_broadcastsocket = socket;
|
|
|
|
return 0;
|
|
} //end of the function WINS_MakeSocketBroadcastCapable
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_Broadcast (int socket, byte *buf, int len)
|
|
{
|
|
int ret;
|
|
|
|
if (socket != net_broadcastsocket)
|
|
{
|
|
if (net_broadcastsocket != 0)
|
|
WinError("Attempted to use multiple broadcasts sockets\n");
|
|
ret = WINS_MakeSocketBroadcastCapable (socket);
|
|
if (ret == -1)
|
|
{
|
|
WinPrint("Unable to make socket broadcast capable\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return WINS_Write (socket, buf, len, &broadcastaddr);
|
|
} //end of the function WINS_Broadcast
|
|
//===========================================================================
|
|
// returns qtrue on success or qfalse on failure
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_Write(int socket, byte *buf, int len, struct sockaddr_s *addr)
|
|
{
|
|
int ret, written;
|
|
|
|
if (addr)
|
|
{
|
|
written = 0;
|
|
while(written < len)
|
|
{
|
|
ret = sendto (socket, &buf[written], len-written, 0, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
|
|
if (ret == SOCKET_ERROR)
|
|
{
|
|
if (WSAGetLastError() != EAGAIN)
|
|
return qfalse;
|
|
//++timo FIXME: what is this used for?
|
|
// Sleep(1000);
|
|
} //end if
|
|
else
|
|
{
|
|
written += ret;
|
|
}
|
|
}
|
|
} //end if
|
|
else
|
|
{
|
|
written = 0;
|
|
while(written < len)
|
|
{
|
|
ret = send(socket, buf, len, 0);
|
|
if (ret == SOCKET_ERROR)
|
|
{
|
|
if (WSAGetLastError() != EAGAIN)
|
|
return qfalse;
|
|
//++timo FIXME: what is this used for?
|
|
// Sleep(1000);
|
|
} //end if
|
|
else
|
|
{
|
|
written += ret;
|
|
}
|
|
}
|
|
} //end else
|
|
if (ret == SOCKET_ERROR)
|
|
{
|
|
WinPrint("WINS_Write: %s\n", WINS_ErrorMessage(WSAGetLastError()));
|
|
} //end if
|
|
return (ret == len);
|
|
} //end of the function WINS_Write
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
char *WINS_AddrToString (struct sockaddr_s *addr)
|
|
{
|
|
static char buffer[22];
|
|
int haddr;
|
|
|
|
haddr = ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr);
|
|
sprintf(buffer, "%d.%d.%d.%d:%d", (haddr >> 24) & 0xff, (haddr >> 16) & 0xff, (haddr >> 8) & 0xff, haddr & 0xff, ntohs(((struct sockaddr_in *)addr)->sin_port));
|
|
return buffer;
|
|
} //end of the function WINS_AddrToString
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_StringToAddr(char *string, struct sockaddr_s *addr)
|
|
{
|
|
int ha1, ha2, ha3, ha4, hp;
|
|
int ipaddr;
|
|
|
|
sscanf(string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp);
|
|
ipaddr = (ha1 << 24) | (ha2 << 16) | (ha3 << 8) | ha4;
|
|
|
|
addr->sa_family = AF_INET;
|
|
((struct sockaddr_in *)addr)->sin_addr.s_addr = htonl(ipaddr);
|
|
((struct sockaddr_in *)addr)->sin_port = htons((u_short)hp);
|
|
return 0;
|
|
} //end of the function WINS_StringToAddr
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_GetSocketAddr(int socket, struct sockaddr_s *addr)
|
|
{
|
|
int addrlen = sizeof(struct sockaddr_s);
|
|
unsigned int a;
|
|
|
|
memset(addr, 0, sizeof(struct sockaddr_s));
|
|
getsockname(socket, (struct sockaddr *)addr, &addrlen);
|
|
a = ((struct sockaddr_in *)addr)->sin_addr.s_addr;
|
|
if (a == 0 || a == inet_addr("127.0.0.1"))
|
|
((struct sockaddr_in *)addr)->sin_addr.s_addr = myAddr;
|
|
|
|
return 0;
|
|
} //end of the function WINS_GetSocketAddr
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_GetNameFromAddr (struct sockaddr_s *addr, char *name)
|
|
{
|
|
struct hostent *hostentry;
|
|
|
|
hostentry = gethostbyaddr ((char *)&((struct sockaddr_in *)addr)->sin_addr, sizeof(struct in_addr), AF_INET);
|
|
if (hostentry)
|
|
{
|
|
strncpy (name, (char *)hostentry->h_name, NET_NAMELEN - 1);
|
|
return 0;
|
|
}
|
|
|
|
strcpy (name, WINS_AddrToString (addr));
|
|
return 0;
|
|
} //end of the function WINS_GetNameFromAddr
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_GetAddrFromName(char *name, struct sockaddr_s *addr)
|
|
{
|
|
struct hostent *hostentry;
|
|
|
|
if (name[0] >= '0' && name[0] <= '9')
|
|
return PartialIPAddress (name, addr);
|
|
|
|
hostentry = gethostbyname (name);
|
|
if (!hostentry)
|
|
return -1;
|
|
|
|
addr->sa_family = AF_INET;
|
|
((struct sockaddr_in *)addr)->sin_port = htons((u_short)net_hostport);
|
|
((struct sockaddr_in *)addr)->sin_addr.s_addr = *(int *)hostentry->h_addr_list[0];
|
|
|
|
return 0;
|
|
} //end of the function WINS_GetAddrFromName
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_AddrCompare (struct sockaddr_s *addr1, struct sockaddr_s *addr2)
|
|
{
|
|
if (addr1->sa_family != addr2->sa_family)
|
|
return -1;
|
|
|
|
if (((struct sockaddr_in *)addr1)->sin_addr.s_addr != ((struct sockaddr_in *)addr2)->sin_addr.s_addr)
|
|
return -1;
|
|
|
|
if (((struct sockaddr_in *)addr1)->sin_port != ((struct sockaddr_in *)addr2)->sin_port)
|
|
return 1;
|
|
|
|
return 0;
|
|
} //end of the function WINS_AddrCompare
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_GetSocketPort (struct sockaddr_s *addr)
|
|
{
|
|
return ntohs(((struct sockaddr_in *)addr)->sin_port);
|
|
} //end of the function WINS_GetSocketPort
|
|
//===========================================================================
|
|
//
|
|
// Parameter: -
|
|
// Returns: -
|
|
// Changes Globals: -
|
|
//===========================================================================
|
|
int WINS_SetSocketPort (struct sockaddr_s *addr, int port)
|
|
{
|
|
((struct sockaddr_in *)addr)->sin_port = htons((u_short)port);
|
|
return 0;
|
|
} //end of the function WINS_SetSocketPort
|