The Quake sources as originally release under the GPL license on December 21, 1999

1 files changed, 763 insertions, 0 deletions

diff --git a/WinQuake/net_bw.c b/WinQuake/net_bw.c
new file mode 100644
index 0000000..2fb3e06
--- /dev/null
+++ b/WinQuake/net_bw.c
@@ -0,0 +1,763 @@
+/*
+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_bw.c
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <dpmi.h>
+
+#include "quakedef.h"
+#include "dosisms.h"
+
+
+// this section is general Unix stuff that we need
+
+#define	EIO		 		5	/* I/O error */
+#define EBADS			9
+#define EWOULDBLOCK		35	/* function would block */
+#define EMSGSIZE		40	/* message to big for buffers */
+#define	EPROTONOSUPPORT	43	/* Protocol not supported */
+#define	ESOCKTNOSUPPORT	44	/* Socket type not supported */
+#define	EPFNOSUPPORT	46	/* Protocol family not supported */
+#define EAFNOSUPPORT	47	/* Address family not supported */
+#define ECONNABORTED	53	/* User requested hangup */
+#define ENOBUFS 		55	/* No buffers available */
+#define EISCONN 		56	/* Socket has closed */
+#define ENOTCONN		57	/* Socket is not connected */
+#define ESHUTDOWN		58	/* Socket is closed */
+#define ETOOMANYREFS	59	/* Too many sockets open */
+#define ETIMEDOUT		60	/* Connection timed out */
+#define ECONNREFUSED	61	/* Connection refused */
+
+#define AF_INET 		2	/* internet */
+
+#define PF_INET			AF_INET
+
+#define SOCK_STREAM		1		/* stream */
+#define SOCK_DGRAM		2		/* datagram */
+
+#define IPPROTO_TCP		6
+#define IPPROTO_UDP		17
+
+#define INADDR_ANY		0
+
+#define SIOCDONE		0x7300
+#define FIONREAD		0x667f
+#define FIONBIO 		0x667e
+#define FIONWIN 		0x1000
+#define FIONTIN 		0x2000
+
+#define BRDINIT 		0
+#define BRDADDR 		10
+
+#define MAXHOSTNAMELEN	256
+
+#define SOL_SOCKET		0xffff		/* options for socket level */
+
+/*
+ * Option flags per-socket.
+ */
+#define SO_DEBUG		0x0001		/* turn on debugging info recording */
+#define SO_ACCEPTCONN	0x0002		/* socket has had listen() */
+#define SO_REUSEADDR	0x0004		/* allow local address reuse */
+#define SO_KEEPALIVE	0x0008		/* keep connections alive */
+#define SO_DONTROUTE	0x0010		/* just use interface addresses */
+#define SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
+#define SO_USELOOPBACK	0x0040		/* bypass hardware when possible */
+#define SO_LINGER		0x0080		/* linger on close if data present */
+#define SO_OOBINLINE	0x0100		/* leave received OOB data in line */
+#define SO_USEPRIV		0x4000		/* allocate from privileged port area */
+#define SO_CANTSIG		0x8000		/* prevent SIGPIPE on SS_CANTSENDMORE */
+
+/*
+ * Additional options, not kept in so_options.
+ */
+#define SO_SNDBUF		0x1001		/* send buffer size */
+#define SO_RCVBUF		0x1002		/* receive buffer size */
+#define SO_SNDLOWAT		0x1003		/* send low-water mark */
+#define SO_RCVLOWAT		0x1004		/* receive low-water mark */
+#define SO_SNDTIMEO		0x1005		/* send timeout */
+#define SO_RCVTIMEO		0x1006		/* receive timeout */
+#define SO_ERROR		0x1007		/* get error status and clear */
+#define SO_TYPE			0x1008		/* get socket type */
+
+
+struct in_addr
+{
+	union
+	{
+		struct { unsigned char s_b1,s_b2,s_b3,s_b4; } S_un_b;
+		struct { unsigned short s_w1,s_w2; } S_un_w;
+		unsigned long S_addr;
+	} S_un;
+};
+#define	s_addr	S_un.S_addr	/* can be used for most tcp & ip code */
+#define	s_host	S_un.S_un_b.s_b2	/* host on imp */
+#define	s_net	S_un.S_un_b.s_b1	/* network */
+#define	s_imp	S_un.S_un_w.s_w2	/* imp */
+#define	s_impno	S_un.S_un_b.s_b4	/* imp # */
+#define	s_lh	S_un.S_un_b.s_b3	/* logical host */
+
+struct sockaddr_in
+{
+    short			sin_family;
+    unsigned short	sin_port;
+	struct in_addr	sin_addr;
+    char			sin_zero[8];
+};
+
+struct	hostent {
+	char	*h_name;	/* official name of host */
+	char	**h_aliases;	/* alias list */
+	int	h_addrtype;	/* host address type */
+	int	h_length;	/* length of address */
+	char	**h_addr_list;	/* list of addresses from name server */
+#define	h_addr	h_addr_list[0]	/* address, for backward compatiblity */
+};
+
+char *inet_ntoa(struct in_addr in);
+
+
+// this section is B&W specific constants & structures
+
+#define BW_IOCTL_BIND			0
+#define BW_IOCTL_CLEAROPTIONS	5
+#define BW_IOCTL_SETOPTIONS		6
+#define BW_IOCTL_PEEK			7
+#define BW_IOCTL_SETWINMASK		8
+
+#define BW_OPTION_BLOCKING		0x01
+#define BW_OPTION_REUSEBUFFERS	0x80
+
+#define BW_ERR_USR_HANGUP		50
+#define BW_ERR_HANGUP			51
+#define BW_ERR_NET_ERR			52
+#define BW_ERR_IS_CLOSED		53
+#define BW_ERR_TIME_OUT			54
+#define BW_ERR_RESET			55
+#define BW_ERR_FULL				56
+#define BW_ERR_BLOCK			57
+#define BW_ERR_SHUTDOWN			58
+
+#pragma pack(1)
+
+typedef struct
+{
+	char			state;			// always 1
+	short			localPort;
+	struct in_addr	localAddr;
+	char			reason;			// always 0
+	char			options;
+	short			dataAvailable;
+} BW_UDPinfo_t;
+
+typedef struct
+{
+	char			reserved1 [6];
+	unsigned short	info2Offset;
+	char			reserved2 [18];
+	struct in_addr	remoteAddr;
+} BW_UDPreadInfo1_t;
+
+typedef struct
+{
+	short			remotePort;
+	char			reserved1 [2];
+	unsigned short	dataLenPlus8;
+	char			reserved2 [2];
+	char			data[1];			// actual size is <dataLenPlus8> - 8		
+} BW_UDPreadInfo2_t;
+
+typedef struct
+{
+	char			reserved1 [2];
+	short			remotePort;
+	unsigned short	dataLen;
+	struct in_addr	remoteAddr;
+	char			reserved2 [42];
+	char			data[1];			// actual size is <datalen>
+} BW_writeInfo_t;
+
+typedef struct
+{
+	short	ioport;
+	byte	dma;
+	byte	vector;
+	byte	irq;
+	short	bufferSize;
+	short	maxWindow;
+	short	timeZone;
+	byte	myType;
+	int		inetAddr;
+	short	value;
+	byte	subnetMask;
+	short	etherPointer;
+	short	logserverPointer;
+	short	nameserverPointer;
+	short	printserverPointer;
+	short	timeserverPointer;
+	short	gatewayPointer;
+	short	driverSegment;
+	byte	transferSize;
+	char	cardName [9];
+} BW_ethdevinfo_t;
+
+#pragma pack()
+
+#define LOWMEM_SIZE	4096
+
+static unsigned char *lowmem_buffer;
+static int lowmem_bufseg;
+static int lowmem_bufoff;
+static BW_ethdevinfo_t ethdevinfo;
+static int netmask;
+static struct in_addr bcastaddr;
+
+extern regs_t regs;
+
+static int net_acceptsocket = -1;		// socket for fielding new connections
+static int net_controlsocket = 0;
+
+#include "net_bw.h"
+
+//=============================================================================
+
+static int BW_ioctl(int s, char *msg, int msglen)
+{
+	Q_memcpy(lowmem_buffer, msg, msglen);
+
+	regs.x.ax = 0x4403;
+	regs.x.bx = s;
+	regs.x.cx = msglen;
+	regs.x.dx = lowmem_bufoff;
+	regs.x.ds = lowmem_bufseg;
+	if (dos_int86(0x21))
+		return regs.x.ax;
+	return 0;
+}
+
+//=============================================================================
+
+static int BW_TranslateError(int error)
+{
+	switch(error)
+	{
+		case BW_ERR_USR_HANGUP:	return ECONNABORTED;
+		case BW_ERR_HANGUP:		return EISCONN;
+		case BW_ERR_NET_ERR:	return ENOTCONN;
+		case BW_ERR_IS_CLOSED:	return ENOTCONN;
+		case BW_ERR_TIME_OUT:	return ETIMEDOUT;
+		case BW_ERR_RESET:		return ECONNREFUSED;
+		case BW_ERR_FULL:		return ETOOMANYREFS;
+		case BW_ERR_BLOCK:		return EWOULDBLOCK;
+		case BW_ERR_SHUTDOWN:	return ESHUTDOWN;
+	}
+	return EIO;
+}
+
+//=============================================================================
+
+static int GetEthdevinfo(void)
+{
+	int fd;
+
+	Q_strcpy((char *)lowmem_buffer, "ETHDEV27");
+	regs.x.ax = 0x3d42;
+	regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	if (dos_int86(0x21))
+		return -1;
+	fd = regs.x.ax;
+
+	regs.x.ax = 0x4401;
+	regs.x.bx = fd;
+	regs.x.dx = 0x60;
+	dos_int86(0x21);
+
+	regs.h.ah = 0x3f;
+	regs.x.cx = sizeof(ethdevinfo);
+	regs.x.es = regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	regs.x.bx = fd;
+	if (dos_int86(0x21))
+		return -1;
+	Q_memcpy(&ethdevinfo, lowmem_buffer, regs.x.ax);
+
+	regs.h.ah = 0x3e;
+	regs.x.bx = fd;
+	dos_int86(0x21);
+
+	return 0;
+}
+
+//=============================================================================
+
+int BW_Init(void)
+{
+	struct qsockaddr addr;
+	char *colon;
+
+	if (COM_CheckParm ("-noudp"))
+		return -1;
+
+	lowmem_buffer = dos_getmemory(LOWMEM_SIZE);
+	if (!lowmem_buffer)
+		Sys_Error("not enough low memory\n");
+	lowmem_bufoff = ptr2real(lowmem_buffer) & 0xf;
+	lowmem_bufseg = ptr2real(lowmem_buffer) >> 4;
+
+	if (GetEthdevinfo())
+	{
+		Con_DPrintf("Beame & Whiteside TCP/IP not detected\n");
+		dos_freememory(lowmem_buffer);
+		return -1;
+	}
+	netmask = 0xffffffff >> (32 - ethdevinfo.subnetMask);
+	bcastaddr.s_addr = (ethdevinfo.inetAddr & netmask) | (~netmask);
+
+	if ((net_controlsocket = BW_OpenSocket (0)) == -1)
+	{
+		dos_freememory(lowmem_buffer);
+		Con_DPrintf ("BW_Init unable to open control socket; disabled\n");
+		return -1;
+	}
+
+	BW_GetSocketAddr (net_controlsocket, &addr);
+	Q_strcpy(my_tcpip_address,  BW_AddrToString (&addr));
+	colon = Q_strrchr (my_tcpip_address, ':');
+	if (colon)
+		*colon = 0;
+
+	Con_Printf("BW_Init: UDP initialized\n");
+	tcpipAvailable = true;
+
+	return net_controlsocket;
+}
+
+//=============================================================================
+
+void BW_Shutdown(void)
+{
+	BW_Listen (false);
+	BW_CloseSocket (net_controlsocket);
+	dos_freememory(lowmem_buffer);
+}
+
+//=============================================================================
+
+void BW_Listen (qboolean state)
+{
+	// enable listening
+	if (state)
+	{
+		if (net_acceptsocket != -1)
+			return;
+		if ((net_acceptsocket = BW_OpenSocket (net_hostport)) == -1)
+			Sys_Error ("BW_Listen: Unable to open accept socket\n");
+		return;
+	}
+
+	// disable listening
+	if (net_acceptsocket == -1)
+		return;
+	BW_CloseSocket (net_acceptsocket);
+	net_acceptsocket = -1;
+}
+
+
+//=============================================================================
+
+/*
+OpenSocket returns a handle to a network socket that has been opened,
+set to nonblocking, and bound to <port>.  Additional socket options
+should be set here if they are needed.  -1 is returned on failure.
+*/
+
+int BW_OpenSocket(int port)
+{
+	int s;
+	int ret;
+	int deadman = 3 * 1024;
+	static int dynamic = 1024;
+	static char reuse_msg[2] = {BW_IOCTL_SETOPTIONS, BW_OPTION_REUSEBUFFERS};
+	static char bind_msg[3] = {BW_IOCTL_BIND, 0, 0};
+	static char nonblock_msg[2] = {BW_IOCTL_CLEAROPTIONS, BW_OPTION_BLOCKING};
+
+	// allocate a UDP socket
+	Q_strcpy((char *)lowmem_buffer, "UDP-IP10");
+	regs.x.ax = 0x3d42;
+	regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	if (dos_int86(0x21))
+	{
+		Con_Printf("BW_OpenSocket failed: %u\n", BW_TranslateError(regs.x.ax));
+		return -1;
+	}
+	s = regs.x.ax;
+
+	// set file descriptor to raw mode
+	regs.x.ax = 0x4401;
+	regs.x.bx = s;
+	regs.x.dx = 0x60;
+	dos_int86(0x21);
+
+	if (BW_ioctl(s, reuse_msg, 2))
+	{
+		Con_Printf("BW_OpenSocket ioctl(reuse) failed\n");
+		return -1;
+	}
+
+	if (BW_ioctl(s, nonblock_msg, 2))
+	{
+		Con_Printf("BW_OpenSocket ioctl(nonblocking) failed\n");
+		return -1;
+	}
+
+	// if a socket was specified, bind to it and return
+	if (port)
+	{
+		*(short *)&bind_msg[1] = port;
+		if (BW_ioctl(s, bind_msg, 3))
+		{
+			BW_CloseSocket(s);
+			return -1;
+		}
+		return s;
+	}
+
+	// B&W does NOT do dynamic allocation, so if port == 0 we must fake it
+	do
+	{
+		port = dynamic++;
+		if (dynamic == 4096)
+			dynamic = 1024;
+		deadman--;
+		*(short *)&bind_msg[1] = port;
+		ret = BW_ioctl(s, bind_msg, 3);
+	}
+	while (ret && deadman);
+	if (ret)
+		return -1;
+	return s;
+}
+
+//=============================================================================
+
+int BW_CloseSocket(int socket)
+{
+	regs.h.ah = 0x3e;
+	regs.x.bx = socket;
+	if(dos_int86(0x21))
+		{
+			Con_Printf("BW_CloseSocket %u failed: %u\n", socket, BW_TranslateError(regs.x.ax));
+			return -1;
+		}
+	return 0;
+}
+
+//=============================================================================
+
+int BW_Connect (int socket, struct qsockaddr *hostaddr)
+{
+	return 0;
+}
+
+//=============================================================================
+
+int BW_CheckNewConnections(void)
+{
+	if (net_acceptsocket == 0)
+		return -1;
+
+	// see if there's anything waiting
+	regs.x.ax = 0x4406;
+	regs.x.bx = net_acceptsocket;
+	dos_int86(0x21);
+	if (regs.x.ax == 0)
+		return -1;
+	return net_acceptsocket;
+}
+
+//=============================================================================
+
+int BW_Read(int s, byte *buf, int len, struct qsockaddr *from)
+{
+	BW_UDPreadInfo1_t *info1;
+	BW_UDPreadInfo2_t *info2;
+
+	// ask if there's anything waiting
+	regs.x.ax = 0x4406;
+	regs.x.bx = s;
+	dos_int86(0x21);
+	if (regs.x.ax == 0)
+		return 0;
+
+	// there was, so let's get it
+	regs.h.ah = 0x3f;
+	regs.x.cx = /* len + 53 */ LOWMEM_SIZE;
+	regs.x.es = regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	regs.x.bx = s;
+	if (dos_int86(0x21))
+	{
+		Con_Printf("BW UDP read error: %u\n", BW_TranslateError(regs.x.ax));
+		return -1;
+	}
+
+	info1 = (BW_UDPreadInfo1_t *)lowmem_buffer;
+	info2 = (BW_UDPreadInfo2_t *)(lowmem_buffer + info1->info2Offset);
+
+	if (from)
+	{
+		from->sa_family = AF_INET;
+		((struct sockaddr_in *)from)->sin_addr = info1->remoteAddr;
+		((struct sockaddr_in *)from)->sin_port = htons(info2->remotePort);
+	}
+
+	len = info2->dataLenPlus8 - 8;
+	if (len > NET_DATAGRAMSIZE)
+	{
+		Con_Printf("BW UDP read packet too large: %u\n", len);
+		return -1;
+	}
+	Q_memcpy(buf, info2->data, len);
+
+	return len;
+}
+
+//=============================================================================
+
+int BW_Broadcast(int s, byte *msg, int len)
+{
+	BW_writeInfo_t *writeInfo;
+
+	// ask if we're clear to send
+	regs.x.ax = 0x4407;
+	regs.x.bx = s;
+	dos_int86(0x21);
+	if (regs.x.ax == 0)
+		return 0;
+
+	// yes, let's do it
+	writeInfo = (BW_writeInfo_t *)lowmem_buffer;
+	writeInfo->remoteAddr = bcastaddr;
+	writeInfo->remotePort = net_hostport;
+	writeInfo->dataLen = len;
+	if (len > NET_DATAGRAMSIZE)
+		Sys_Error("BW UDP write packet too large: %u\n", len);
+	Q_memcpy(writeInfo->data, msg, len);
+	writeInfo->data[len] = 0;
+	regs.h.ah = 0x40;
+	regs.x.bx = s;
+	regs.x.cx = len + sizeof(BW_writeInfo_t);
+	regs.x.es = regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	if (dos_int86(0x21))
+	{
+		Con_Printf("BW_Broadcast failed: %u\n", BW_TranslateError(regs.x.ax));
+		return -1;
+	}
+
+	return len;
+}
+
+//=============================================================================
+
+int BW_Write(int s, byte *msg, int len, struct qsockaddr *to)
+{
+	BW_writeInfo_t *writeInfo;
+
+	// ask if we're clear to send
+	regs.x.ax = 0x4407;
+	regs.x.bx = s;
+	dos_int86(0x21);
+	if (regs.x.ax == 0)
+		return 0;
+
+	// yes, let's do it
+	writeInfo = (BW_writeInfo_t *)lowmem_buffer;
+	writeInfo->remoteAddr = ((struct sockaddr_in *)to)->sin_addr;
+	writeInfo->remotePort = ntohs(((struct sockaddr_in *)to)->sin_port);
+	writeInfo->dataLen = len;
+	if (len > NET_DATAGRAMSIZE)
+		Sys_Error("BW UDP write packet too large: %u\n", len);
+	Q_memcpy(writeInfo->data, msg, len);
+	writeInfo->data[len] = 0;
+	regs.h.ah = 0x40;
+	regs.x.bx = s;
+	regs.x.cx = len + sizeof(BW_writeInfo_t);
+	regs.x.es = regs.x.ds = lowmem_bufseg;
+	regs.x.dx = lowmem_bufoff;
+	if (dos_int86(0x21))
+	{
+		Con_Printf("BW_Write failed: %u\n", BW_TranslateError(regs.x.ax));
+		return -1;
+	}
+
+	return len;
+}
+
+//=============================================================================
+
+
+char *BW_AddrToString (struct qsockaddr *addr)
+{
+	static char buffer[22];
+
+	sprintf(buffer, "%d.%d.%d.%d:%d",
+		((struct sockaddr_in *)addr)->sin_addr.s_net,
+		((struct sockaddr_in *)addr)->sin_addr.s_host,
+		((struct sockaddr_in *)addr)->sin_addr.s_lh,
+		((struct sockaddr_in *)addr)->sin_addr.s_impno,
+		ntohs(((struct sockaddr_in *)addr)->sin_port)
+		);
+	return buffer;
+}
+
+//=============================================================================
+
+int BW_StringToAddr (char *string, struct qsockaddr *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((short)hp);
+	return 0;
+}
+
+//=============================================================================
+
+int BW_GetSocketAddr (int socket, struct qsockaddr *addr)
+{
+	regs.x.ax = 0x4402;
+	regs.x.bx = socket;
+	regs.x.cx = sizeof(BW_UDPinfo_t);
+	regs.x.dx = lowmem_bufoff;
+	regs.x.ds = lowmem_bufseg;
+	dos_int86(0x21);
+
+	addr->sa_family = AF_INET;
+	((struct sockaddr_in *)addr)->sin_addr.s_addr = ((BW_UDPinfo_t *)lowmem_buffer)->localAddr.s_addr;
+	((struct sockaddr_in *)addr)->sin_port = htons(((BW_UDPinfo_t *)lowmem_buffer)->localPort);
+
+	return 0;
+}
+
+//=============================================================================
+
+int BW_GetNameFromAddr (struct qsockaddr *addr, char *name)
+{
+	Q_strcpy(name, BW_AddrToString(addr));
+	return 0;
+}
+
+///=============================================================================
+
+int BW_GetAddrFromName (char *name, struct qsockaddr *hostaddr)
+{
+	char buff[MAXHOSTNAMELEN];
+	char *b;
+	int addr;
+	int num;
+	int mask;
+	int run;
+	int port;
+
+	if (name[0] < '0' || name[0] > '9')
+		return -1;
+
+	buff[0] = '.';
+	b = buff;
+	Q_strcpy(buff+1, name);
+	if (buff[1] == '.')
+		b++;
+
+	addr = 0;
+	mask = -1;
+	while (*b == '.')
+	{
+		b++;
+		num = 0;
+		run = 0;
+		while (!( *b < '0' || *b > '9'))
+		{
+		  num = num*10 + *b++ - '0';
+		  if (++run > 3)
+		  	return -1;
+		}
+		if ((*b < '0' || *b > '9') && *b != '.' && *b != ':' && *b != 0)
+			return -1;
+		if (num < 0 || num > 255)
+			return -1;
+		mask<<=8;
+		addr = (addr<<8) + num;
+	}
+	addr = htonl(addr);
+	mask = htonl(mask);
+
+	if (*b++ == ':')
+		port = Q_atoi(b);
+	else
+		port = net_hostport;
+
+	hostaddr->sa_family = AF_INET;
+	((struct sockaddr_in *)hostaddr)->sin_port = htons((short)port);	
+	((struct sockaddr_in *)hostaddr)->sin_addr.s_addr =
+	((ethdevinfo.inetAddr & mask) | addr);
+
+	return 0;
+}
+
+//=============================================================================
+
+int BW_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *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;
+}
+
+//=============================================================================
+
+int BW_GetSocketPort (struct qsockaddr *addr)
+{
+	return ntohs(((struct sockaddr_in *)addr)->sin_port);
+}
+
+
+int BW_SetSocketPort (struct qsockaddr *addr, int port)
+{
+	((struct sockaddr_in *)addr)->sin_port = htons(port);
+	return 0;
+}
+
+//=============================================================================