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gtkradiant/libs/l_net/l_net_wins.c

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/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
GtkRadiant 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.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//===========================================================================
//
// Name: l_net_wins.c
// Function: WinSock
// Programmer: MrElusive
// Last update: -
// Tab Size: 3
// Notes:
//===========================================================================
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "l_net.h"
#include "l_net_wins.h"
//#include <winsock.h>
//#include "mpdosock.h"
#define WinError WinPrint
#define qtrue 1
#define qfalse 0
typedef struct tag_error_struct
{
int errnum;
LPSTR errstr;
} ERROR_STRUCT;
#define NET_NAMELEN 64
char my_tcpip_address[NET_NAMELEN];
#define DEFAULTnet_hostport 26000
#define MAXHOSTNAMELEN 256
static int net_acceptsocket = -1; // socket for fielding new connections
static int net_controlsocket;
static int net_hostport; // udp port number for acceptsocket
static int net_broadcastsocket = 0;
//static qboolean ifbcastinit = qfalse;
static struct sockaddr_s broadcastaddr;
static unsigned long myAddr;
WSADATA winsockdata;
ERROR_STRUCT errlist[] = {
{WSAEINTR, "WSAEINTR - Interrupted"},
{WSAEBADF, "WSAEBADF - Bad file number"},
{WSAEFAULT, "WSAEFAULT - Bad address"},
{WSAEINVAL, "WSAEINVAL - Invalid argument"},
{WSAEMFILE, "WSAEMFILE - Too many open files"},
/*
* Windows Sockets definitions of regular Berkeley error constants
*/
{WSAEWOULDBLOCK, "WSAEWOULDBLOCK - Socket marked as non-blocking"},
{WSAEINPROGRESS, "WSAEINPROGRESS - Blocking call in progress"},
{WSAEALREADY, "WSAEALREADY - Command already completed"},
{WSAENOTSOCK, "WSAENOTSOCK - Descriptor is not a socket"},
{WSAEDESTADDRREQ, "WSAEDESTADDRREQ - Destination address required"},
{WSAEMSGSIZE, "WSAEMSGSIZE - Data size too large"},
{WSAEPROTOTYPE, "WSAEPROTOTYPE - Protocol is of wrong type for this socket"},
{WSAENOPROTOOPT, "WSAENOPROTOOPT - Protocol option not supported for this socket type"},
{WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT - Protocol is not supported"},
{WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT - Socket type not supported by this address family"},
{WSAEOPNOTSUPP, "WSAEOPNOTSUPP - Option not supported"},
{WSAEPFNOSUPPORT, "WSAEPFNOSUPPORT - "},
{WSAEAFNOSUPPORT, "WSAEAFNOSUPPORT - Address family not supported by this protocol"},
{WSAEADDRINUSE, "WSAEADDRINUSE - Address is in use"},
{WSAEADDRNOTAVAIL, "WSAEADDRNOTAVAIL - Address not available from local machine"},
{WSAENETDOWN, "WSAENETDOWN - Network subsystem is down"},
{WSAENETUNREACH, "WSAENETUNREACH - Network cannot be reached"},
{WSAENETRESET, "WSAENETRESET - Connection has been dropped"},
{WSAECONNABORTED, "WSAECONNABORTED - Connection aborted"},
{WSAECONNRESET, "WSAECONNRESET - Connection reset"},
{WSAENOBUFS, "WSAENOBUFS - No buffer space available"},
{WSAEISCONN, "WSAEISCONN - Socket is already connected"},
{WSAENOTCONN, "WSAENOTCONN - Socket is not connected"},
{WSAESHUTDOWN, "WSAESHUTDOWN - Socket has been shut down"},
{WSAETOOMANYREFS, "WSAETOOMANYREFS - Too many references"},
{WSAETIMEDOUT, "WSAETIMEDOUT - Command timed out"},
{WSAECONNREFUSED, "WSAECONNREFUSED - Connection refused"},
{WSAELOOP, "WSAELOOP - "},
{WSAENAMETOOLONG, "WSAENAMETOOLONG - "},
{WSAEHOSTDOWN, "WSAEHOSTDOWN - Host is down"},
{WSAEHOSTUNREACH, "WSAEHOSTUNREACH - "},
{WSAENOTEMPTY, "WSAENOTEMPTY - "},
{WSAEPROCLIM, "WSAEPROCLIM - "},
{WSAEUSERS, "WSAEUSERS - "},
{WSAEDQUOT, "WSAEDQUOT - "},
{WSAESTALE, "WSAESTALE - "},
{WSAEREMOTE, "WSAEREMOTE - "},
/*
* Extended Windows Sockets error constant definitions
*/
{WSASYSNOTREADY, "WSASYSNOTREADY - Network subsystem not ready"},
{WSAVERNOTSUPPORTED, "WSAVERNOTSUPPORTED - Version not supported"},
{WSANOTINITIALISED, "WSANOTINITIALISED - WSAStartup() has not been successfully called"},
/*
* Other error constants.
*/
{WSAHOST_NOT_FOUND, "WSAHOST_NOT_FOUND - Host not found"},
{WSATRY_AGAIN, "WSATRY_AGAIN - Host not found or SERVERFAIL"},
{WSANO_RECOVERY, "WSANO_RECOVERY - Non-recoverable error"},
{WSANO_DATA, "WSANO_DATA - (or WSANO_ADDRESS) - No data record of requested type"},
{-1, NULL}
};
#ifdef _DEBUG
void WinPrint(char *str, ...);
#else
void WinPrint(char *str, ...);
#endif
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
char *WINS_ErrorMessage(int error)
{
int search = 0;
if (!error) return "No error occurred";
for (search = 0; errlist[search].errstr; search++)
{
if (error == errlist[search].errnum)
return errlist[search].errstr;
} //end for
return "Unknown error";
} //end of the function WINS_ErrorMessage
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Init(void)
{
int i;
struct hostent *local;
char buff[MAXHOSTNAMELEN];
struct sockaddr_s addr;
char *p;
int r;
WORD wVersionRequested;
wVersionRequested = MAKEWORD(1, 1);
r = WSAStartup (wVersionRequested, &winsockdata);
if (r)
{
WinPrint("Winsock initialization failed.\n");
return -1;
}
/*
i = COM_CheckParm ("-udpport");
if (i == 0)*/
net_hostport = DEFAULTnet_hostport;
/*
else if (i < com_argc-1)
net_hostport = Q_atoi (com_argv[i+1]);
else
Sys_Error ("WINS_Init: you must specify a number after -udpport");
*/
// determine my name & address
gethostname(buff, MAXHOSTNAMELEN);
local = gethostbyname(buff);
myAddr = *(int *)local->h_addr_list[0];
// if the quake hostname isn't set, set it to the machine name
// if (Q_strcmp(hostname.string, "UNNAMED") == 0)
{
// see if it's a text IP address (well, close enough)
for (p = buff; *p; p++)
if ((*p < '0' || *p > '9') && *p != '.')
break;
// if it is a real name, strip off the domain; we only want the host
if (*p)
{
for (i = 0; i < 15; i++)
if (buff[i] == '.')
break;
buff[i] = 0;
}
// Cvar_Set ("hostname", buff);
}
if ((net_controlsocket = WINS_OpenSocket (0)) == -1)
WinError("WINS_Init: Unable to open control socket\n");
((struct sockaddr_in *)&broadcastaddr)->sin_family = AF_INET;
((struct sockaddr_in *)&broadcastaddr)->sin_addr.s_addr = INADDR_BROADCAST;
((struct sockaddr_in *)&broadcastaddr)->sin_port = htons((u_short)net_hostport);
WINS_GetSocketAddr (net_controlsocket, &addr);
strcpy(my_tcpip_address, WINS_AddrToString (&addr));
p = strrchr (my_tcpip_address, ':');
if (p) *p = 0;
WinPrint("Winsock Initialized\n");
return net_controlsocket;
} //end of the function WINS_Init
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
char *WINS_MyAddress(void)
{
return my_tcpip_address;
} //end of the function WINS_MyAddress
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void WINS_Shutdown(void)
{
//WINS_Listen(0);
WINS_CloseSocket(net_controlsocket);
WSACleanup();
//
WinPrint("Winsock Shutdown\n");
} //end of the function WINS_Shutdown
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
/*
void WINS_Listen(int state)
{
// enable listening
if (state)
{
if (net_acceptsocket != -1)
return;
if ((net_acceptsocket = WINS_OpenSocket (net_hostport)) == -1)
WinError ("WINS_Listen: Unable to open accept socket\n");
return;
}
// disable listening
if (net_acceptsocket == -1)
return;
WINS_CloseSocket (net_acceptsocket);
net_acceptsocket = -1;
} //end of the function WINS_Listen*/
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_OpenSocket(int port)
{
int newsocket;
struct sockaddr_in address;
u_long _true = 1;
if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
{
WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
if (ioctlsocket (newsocket, FIONBIO, &_true) == -1)
{
WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
closesocket(newsocket);
return -1;
} //end if
memset((char *) &address, 0, sizeof(address));
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons((u_short)port);
if( bind (newsocket, (void *)&address, sizeof(address)) == -1)
{
WinPrint("WINS_OpenSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
closesocket(newsocket);
return -1;
} //end if
return newsocket;
} //end of the function WINS_OpenSocket
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_OpenReliableSocket(int port)
{
int newsocket;
struct sockaddr_in address;
BOOL _true = 0xFFFFFFFF;
//IPPROTO_TCP
//
if ((newsocket = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
memset((char *) &address, 0, sizeof(address));
address.sin_family = AF_INET;
address.sin_addr.s_addr = htonl(INADDR_ANY);
address.sin_port = htons((u_short)port);
if (bind(newsocket, (void *)&address, sizeof(address)) == -1)
{
WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
closesocket(newsocket);
return -1;
} //end if
//
if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
{
WinPrint("WINS_OpenReliableSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
WinPrint("setsockopt error\n");
} //end if
return newsocket;
} //end of the function WINS_OpenReliableSocket
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Listen(int socket)
{
u_long _true = 1;
if (ioctlsocket(socket, FIONBIO, &_true) == -1)
{
WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
if (listen(socket, SOMAXCONN) == SOCKET_ERROR)
{
WinPrint("WINS_Listen: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
return 0;
} //end of the function WINS_Listen
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Accept(int socket, struct sockaddr_s *addr)
{
int addrlen = sizeof (struct sockaddr_s);
int newsocket;
BOOL _true = 1;
newsocket = accept(socket, (struct sockaddr *)addr, &addrlen);
if (newsocket == INVALID_SOCKET)
{
if (WSAGetLastError() == WSAEWOULDBLOCK) return -1;
WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
//
if (setsockopt(newsocket, IPPROTO_TCP, TCP_NODELAY, (void *) &_true, sizeof(int)) == SOCKET_ERROR)
{
WinPrint("WINS_Accept: %s\n", WINS_ErrorMessage(WSAGetLastError()));
WinPrint("setsockopt error\n");
} //end if
return newsocket;
} //end of the function WINS_Accept
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_CloseSocket(int socket)
{
/*
if (socket == net_broadcastsocket)
net_broadcastsocket = 0;
*/
// shutdown(socket, SD_SEND);
if (closesocket(socket) == SOCKET_ERROR)
{
WinPrint("WINS_CloseSocket: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return SOCKET_ERROR;
} //end if
return 0;
} //end of the function WINS_CloseSocket
//===========================================================================
// this lets you type only as much of the net address as required, using
// the local network components to fill in the rest
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
static int PartialIPAddress (char *in, struct sockaddr_s *hostaddr)
{
char buff[256];
char *b;
int addr;
int num;
int mask;
buff[0] = '.';
b = buff;
strcpy(buff+1, in);
if (buff[1] == '.') b++;
addr = 0;
mask=-1;
while (*b == '.')
{
num = 0;
if (*++b < '0' || *b > '9') return -1;
while (!( *b < '0' || *b > '9'))
num = num*10 + *(b++) - '0';
mask<<=8;
addr = (addr<<8) + num;
}
hostaddr->sa_family = AF_INET;
((struct sockaddr_in *)hostaddr)->sin_port = htons((u_short)net_hostport);
((struct sockaddr_in *)hostaddr)->sin_addr.s_addr = (myAddr & htonl(mask)) | htonl(addr);
return 0;
} //end of the function PartialIPAddress
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Connect(int socket, struct sockaddr_s *addr)
{
int ret;
u_long _true2 = 0xFFFFFFFF;
ret = connect(socket, (struct sockaddr *)addr, sizeof(struct sockaddr_s));
if (ret == SOCKET_ERROR)
{
WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
if (ioctlsocket(socket, FIONBIO, &_true2) == -1)
{
WinPrint("WINS_Connect: %s\n", WINS_ErrorMessage(WSAGetLastError()));
return -1;
} //end if
return 0;
} //end of the function WINS_Connect
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_CheckNewConnections(void)
{
char buf[4];
if (net_acceptsocket == -1)
return -1;
if (recvfrom(net_acceptsocket, buf, 4, MSG_PEEK, NULL, NULL) > 0)
return net_acceptsocket;
return -1;
} //end of the function WINS_CheckNewConnections
//===========================================================================
// returns the number of bytes read
// 0 if no bytes available
// -1 on failure
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int WINS_Read(int socket, byte *buf, int len, struct sockaddr_s *addr)
{
int addrlen = sizeof (struct sockaddr_s);
int ret, errno;
if (addr)
{
ret = recvfrom(socket, buf, len, 0, (struct sockaddr *)addr, &addrlen);
if (ret == -1)
{
errno = WSAGetLastError();
if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
return 0;
} //end if
} //end if
else
{
ret = recv(socket, buf, len, 0);
if (ret == SOCKET_ERROR)
{
errno = WSAGetLastError();
if (errno == WSAEWOULDBLOCK || errno == WSAECONNREFUSED)
return 0;
} //end if
} //end else
if (ret == SOCKET_ERROR)
{
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() != WSAEWOULDBLOCK)
return qfalse;
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() != WSAEWOULDBLOCK)
return qfalse;
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
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