drop .original files from the current code base

1 files changed, 0 insertions, 1681 deletions

diff --git a/nx-X11/programs/Xserver/os/xdmcp.c.X.original b/nx-X11/programs/Xserver/os/xdmcp.c.X.original
deleted file mode 100644
index 19a62a56b..000000000
--- a/nx-X11/programs/Xserver/os/xdmcp.c.X.original
+++ /dev/null
@@ -1,1681 +0,0 @@
-/* $XdotOrg: xc/programs/Xserver/os/xdmcp.c,v 1.10 2005/07/03 08:53:52 daniels Exp $ */
-/* $Xorg: xdmcp.c,v 1.4 2001/01/31 13:37:19 pookie Exp $ */
-/*
- * Copyright 1989 Network Computing Devices, Inc., Mountain View, California.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of N.C.D. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission.  N.C.D. makes no representations about the
- * suitability of this software for any purpose.  It is provided "as is"
- * without express or implied warranty.
- *
- */
-/* $XFree86: xc/programs/Xserver/os/xdmcp.c,v 3.31 2003/12/30 21:24:32 herrb Exp $ */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#ifdef WIN32
-#include <X11/Xwinsock.h>
-#endif
-
-#include <X11/Xos.h>
-
-#if !defined(WIN32)
-#ifndef Lynx
-#include <sys/param.h>
-#include <sys/socket.h>
-#else
-#include <socket.h>
-#endif
-#include <netinet/in.h>
-#include <netdb.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <X11/X.h>
-#include <X11/Xmd.h>
-#include "misc.h"
-#include <X11/Xpoll.h>
-#include "osdep.h"
-#include "input.h"
-#include "dixstruct.h"
-#include "opaque.h"
-
-#if defined(DGUX)
-#include <net/net_ioctl.h>
-#include <sys/ioctl.h>
-#endif
-
-#ifdef STREAMSCONN
-#include <tiuser.h>
-#include <netconfig.h>
-#include <netdir.h>
-#endif
-
-#ifdef XDMCP
-#undef REQUEST
-
-#ifdef XDMCP_NO_IPV6
-#undef IPv6
-#endif
-
-#include <X11/Xdmcp.h>
-
-#define X_INCLUDE_NETDB_H
-#include <X11/Xos_r.h>
-
-extern char *defaultDisplayClass;
-
-static int		    xdmcpSocket, sessionSocket;
-static xdmcp_states	    state;
-#if defined(IPv6) && defined(AF_INET6)
-static int		    xdmcpSocket6;
-static struct sockaddr_storage req_sockaddr;
-#else
-static struct sockaddr_in   req_sockaddr;
-#endif
-static int		    req_socklen;
-static CARD32		    SessionID;
-static CARD32		    timeOutTime;
-static int		    timeOutRtx;
-static CARD32		    defaultKeepaliveDormancy = XDM_DEF_DORMANCY;
-static CARD32		    keepaliveDormancy = XDM_DEF_DORMANCY;
-static CARD16		    DisplayNumber;
-static xdmcp_states	    XDM_INIT_STATE = XDM_OFF;
-#ifdef HASXDMAUTH
-static char		    *xdmAuthCookie;
-#endif
-
-static XdmcpBuffer	    buffer;
-
-#if defined(IPv6) && defined(AF_INET6)
-
-static struct addrinfo *mgrAddr;
-static struct addrinfo *mgrAddrFirst;
-
-#define SOCKADDR_TYPE		struct sockaddr_storage
-#define SOCKADDR_FAMILY(s)	((struct sockaddr *)&(s))->sa_family
-
-#ifdef BSD44SOCKETS
-#define SOCKLEN_FIELD(s)	((struct sockaddr *)&(s))->sa_len
-#define SOCKLEN_TYPE 		unsigned char
-#else
-#define SOCKLEN_TYPE 		unsigned int
-#endif
-
-#else
-
-#define SOCKADDR_TYPE		struct sockaddr_in
-#define SOCKADDR_FAMILY(s)	(s).sin_family
-
-#ifdef BSD44SOCKETS
-#define SOCKLEN_FIELD(s)	(s).sin_len
-#define SOCKLEN_TYPE		unsigned char
-#else
-#define SOCKLEN_TYPE		size_t
-#endif
-
-#endif
-
-static SOCKADDR_TYPE		ManagerAddress;
-static SOCKADDR_TYPE		FromAddress;
-
-#ifdef SOCKLEN_FIELD
-#define ManagerAddressLen	SOCKLEN_FIELD(ManagerAddress)
-#define FromAddressLen		SOCKLEN_FIELD(FromAddress)
-#else
-static SOCKLEN_TYPE ManagerAddressLen, FromAddressLen;
-#endif
-
-#if defined(IPv6) && defined(AF_INET6)
-static struct multicastinfo {
-    struct multicastinfo	*next;
-    struct addrinfo		*ai;
-    int				 hops;
-} *mcastlist;
-#endif
-
-static void XdmcpAddHost(
-    struct sockaddr    *from,
-    int			fromlen,
-    ARRAY8Ptr		AuthenticationName,
-    ARRAY8Ptr		hostname,
-    ARRAY8Ptr		status);
-
-static void XdmcpSelectHost(
-    struct sockaddr	*host_sockaddr,
-    int			host_len,
-    ARRAY8Ptr		AuthenticationName);
-
-static void get_xdmcp_sock(void);
-
-static void send_query_msg(void);
-
-static void recv_willing_msg(
-    struct sockaddr * /*from*/,
-    int /*fromlen*/,
-    unsigned /*length*/);
-
-static void send_request_msg(void);
-
-static void recv_accept_msg(unsigned /*length*/);
-
-static void recv_decline_msg(unsigned /*length*/);
-
-static void send_manage_msg(void);
-
-static void recv_refuse_msg(unsigned /*length*/);
-
-static void recv_failed_msg(unsigned /*length*/);
-
-static void send_keepalive_msg(void);
-
-static void recv_alive_msg(unsigned /*length*/);
-
-static void XdmcpFatal(
-    char * /*type*/,
-    ARRAY8Ptr /*status*/);
- 
-static void XdmcpWarning(char * /*str*/);
-
-static void get_manager_by_name(
-    int /*argc*/,
-    char ** /*argv*/,
-    int /*i*/);
-
-static void get_fromaddr_by_name(int /*argc*/, char ** /*argv*/, int /*i*/);
-
-#if defined(IPv6) && defined(AF_INET6)
-static int get_mcast_options(int /*argc*/, char ** /*argv*/, int /*i*/);
-#endif
-
-static void receive_packet(int /*socketfd*/);
-
-static void send_packet(void);
-
-extern void XdmcpDeadSession(char * /*reason*/);
-
-static void timeout(void);
-
-static void restart(void);
-
-static void XdmcpBlockHandler(
-    pointer /*data*/,
-    struct timeval ** /*wt*/,
-    pointer /*LastSelectMask*/);
-
-static void XdmcpWakeupHandler(
-    pointer /*data*/,
-    int /*i*/,
-    pointer /*LastSelectMask*/);
-
-void XdmcpRegisterManufacturerDisplayID(
-    char    * /*name*/,
-    int	    /*length*/);
-
-
-static unsigned short	xdm_udp_port = XDM_UDP_PORT;
-static Bool	OneSession = FALSE;
-static const char 	*xdm_from = NULL;
-
-void
-XdmcpUseMsg (void)
-{
-    ErrorF("-query host-name       contact named host for XDMCP\n");
-    ErrorF("-broadcast             broadcast for XDMCP\n");
-#if defined(IPv6) && defined(AF_INET6)
-    ErrorF("-multicast [addr [hops]] IPv6 multicast for XDMCP\n");
-#endif
-    ErrorF("-indirect host-name    contact named host for indirect XDMCP\n");
-    ErrorF("-port port-num         UDP port number to send messages to\n");
-    ErrorF("-from local-address    specify the local address to connect from\n");
-    ErrorF("-once                  Terminate server after one session\n");
-    ErrorF("-class display-class   specify display class to send in manage\n");
-#ifdef HASXDMAUTH
-    ErrorF("-cookie xdm-auth-bits  specify the magic cookie for XDMCP\n");
-#endif
-    ErrorF("-displayID display-id  manufacturer display ID for request\n");
-}
-
-int 
-XdmcpOptions(int argc, char **argv, int i)
-{
-    if (strcmp(argv[i], "-query") == 0) {
-	get_manager_by_name(argc, argv, i++);
-	XDM_INIT_STATE = XDM_QUERY;
-	AccessUsingXdmcp ();
-	return (i + 1);
-    }
-    if (strcmp(argv[i], "-broadcast") == 0) {
-	XDM_INIT_STATE = XDM_BROADCAST;
-	AccessUsingXdmcp ();
-	return (i + 1);
-    }
-#if defined(IPv6) && defined(AF_INET6)
-    if (strcmp(argv[i], "-multicast") == 0) {
-	i = get_mcast_options(argc, argv, ++i);
-	XDM_INIT_STATE = XDM_MULTICAST;
-	AccessUsingXdmcp ();
-	return (i + 1);
-    }
-#endif
-    if (strcmp(argv[i], "-indirect") == 0) {
-	get_manager_by_name(argc, argv, i++);
-	XDM_INIT_STATE = XDM_INDIRECT;
-	AccessUsingXdmcp ();
-	return (i + 1);
-    }
-    if (strcmp(argv[i], "-port") == 0) {
-        if (++i == argc)  {
-	    FatalError("Xserver: missing port number in command line\n");
-	}
-	xdm_udp_port = (unsigned short) atoi(argv[i]);
-	return (i + 1);
-    }
-    if (strcmp(argv[i], "-from") == 0) {
-	get_fromaddr_by_name(argc, argv, ++i);
-	return (i + 1);
-    }
-    if (strcmp(argv[i], "-once") == 0) {
-	OneSession = TRUE;
-	return (i + 1);
-    }
-    if (strcmp(argv[i], "-class") == 0) {
-        if (++i == argc)  {
-	    FatalError("Xserver: missing class name in command line\n");
-	}
-	defaultDisplayClass = argv[i];
-	return (i + 1);
-    }
-#ifdef HASXDMAUTH
-    if (strcmp(argv[i], "-cookie") == 0) {
-        if (++i == argc)  {
-	    FatalError("Xserver: missing cookie data in command line\n");
-	}
-	xdmAuthCookie = argv[i];
-	return (i + 1);
-    }
-#endif
-    if (strcmp(argv[i], "-displayID") == 0) {
-        if (++i == argc)  {
-	    FatalError("Xserver: missing displayID in command line\n");
-	}
-	XdmcpRegisterManufacturerDisplayID (argv[i], strlen (argv[i]));
-	return (i + 1);
-    }
-    return (i);
-}
-
-/*
- * This section is a collection of routines for
- * registering server-specific data with the XDMCP
- * state machine.
- */
-
-
-/*
- * Save all broadcast addresses away so BroadcastQuery
- * packets get sent everywhere
- */
-
-#define MAX_BROADCAST	10
-
-/* This stays sockaddr_in since IPv6 doesn't support broadcast */
-static struct sockaddr_in   BroadcastAddresses[MAX_BROADCAST];
-static int		    NumBroadcastAddresses;
-
-void
-XdmcpRegisterBroadcastAddress (struct sockaddr_in *addr)
-{
-    struct sockaddr_in	*bcast;
-    if (NumBroadcastAddresses >= MAX_BROADCAST)
-	return;
-    bcast = &BroadcastAddresses[NumBroadcastAddresses++];
-    bzero (bcast, sizeof (struct sockaddr_in));
-#ifdef BSD44SOCKETS
-    bcast->sin_len = addr->sin_len;
-#endif
-    bcast->sin_family = addr->sin_family;
-    bcast->sin_port = htons (xdm_udp_port);
-    bcast->sin_addr = addr->sin_addr;
-}
-
-/*
- * Each authentication type is registered here; Validator
- * will be called to check all access attempts using
- * the specified authentication type
- */
-
-static ARRAYofARRAY8	AuthenticationNames, AuthenticationDatas;
-typedef struct _AuthenticationFuncs {
-    ValidatorFunc    Validator;
-    GeneratorFunc    Generator;
-    AddAuthorFunc    AddAuth;
-} AuthenticationFuncsRec, *AuthenticationFuncsPtr;
-
-static AuthenticationFuncsPtr	AuthenticationFuncsList;
-
-void
-XdmcpRegisterAuthentication (
-    char    *name,
-    int	    namelen,
-    char    *data,
-    int	    datalen,
-    ValidatorFunc Validator,
-    GeneratorFunc Generator,
-    AddAuthorFunc AddAuth)
-{
-    int	    i;
-    ARRAY8  AuthenticationName, AuthenticationData;
-    static AuthenticationFuncsPtr	newFuncs;
-
-    if (!XdmcpAllocARRAY8 (&AuthenticationName, namelen))
-	return;
-    if (!XdmcpAllocARRAY8 (&AuthenticationData, datalen))
-    {
-	XdmcpDisposeARRAY8 (&AuthenticationName);
-	return;
-    }
-    for (i = 0; i < namelen; i++)
-	AuthenticationName.data[i] = name[i];
-    for (i = 0; i < datalen; i++)
-	AuthenticationData.data[i] = data[i];
-    if (!(XdmcpReallocARRAYofARRAY8 (&AuthenticationNames,
-				     AuthenticationNames.length + 1) &&
-	  XdmcpReallocARRAYofARRAY8 (&AuthenticationDatas,
-				     AuthenticationDatas.length + 1) &&
-	  (newFuncs = (AuthenticationFuncsPtr) xalloc (
-			(AuthenticationNames.length + 1) * sizeof (AuthenticationFuncsRec)))))
-    {
-	XdmcpDisposeARRAY8 (&AuthenticationName);
-	XdmcpDisposeARRAY8 (&AuthenticationData);
-	return;
-    }
-    for (i = 0; i < AuthenticationNames.length - 1; i++)
-	newFuncs[i] = AuthenticationFuncsList[i];
-    newFuncs[AuthenticationNames.length-1].Validator = Validator;
-    newFuncs[AuthenticationNames.length-1].Generator = Generator;
-    newFuncs[AuthenticationNames.length-1].AddAuth = AddAuth;
-    xfree (AuthenticationFuncsList);
-    AuthenticationFuncsList = newFuncs;
-    AuthenticationNames.data[AuthenticationNames.length-1] = AuthenticationName;
-    AuthenticationDatas.data[AuthenticationDatas.length-1] = AuthenticationData;
-}
-
-/*
- * Select the authentication type to be used; this is
- * set by the manager of the host to be connected to.
- */
-
-ARRAY8		noAuthenticationName = {(CARD16) 0, (CARD8Ptr) 0};
-ARRAY8		noAuthenticationData = {(CARD16) 0, (CARD8Ptr) 0};
-ARRAY8Ptr	AuthenticationName = &noAuthenticationName;
-ARRAY8Ptr	AuthenticationData = &noAuthenticationData;
-AuthenticationFuncsPtr	AuthenticationFuncs;
-
-void
-XdmcpSetAuthentication (ARRAY8Ptr name)
-{
-    int	i;
-
-    for (i = 0; i < AuthenticationNames.length; i++)
-	if (XdmcpARRAY8Equal (&AuthenticationNames.data[i], name))
-	{
-	    AuthenticationName = &AuthenticationNames.data[i];
-	    AuthenticationData = &AuthenticationDatas.data[i];
-	    AuthenticationFuncs = &AuthenticationFuncsList[i];
-	    break;
-	}
-}
-
-/*
- * Register the host address for the display
- */
-
-static ARRAY16		ConnectionTypes;
-static ARRAYofARRAY8	ConnectionAddresses;
-static long		xdmcpGeneration;
-
-void
-XdmcpRegisterConnection (
-    int	    type,
-    char    *address,
-    int	    addrlen)
-{
-    int	    i;
-    CARD8   *newAddress;
-
-    if (xdmcpGeneration != serverGeneration)
-    {
-	XdmcpDisposeARRAY16 (&ConnectionTypes);
-	XdmcpDisposeARRAYofARRAY8 (&ConnectionAddresses);
-	xdmcpGeneration = serverGeneration;
-    }
-    if (xdm_from != NULL) {	/* Only register the requested address */
-	const void *regAddr = address;
-	const void *fromAddr = NULL;
-	int regAddrlen = addrlen;
-
-	if (addrlen == sizeof(struct in_addr)) {
-	    if (SOCKADDR_FAMILY(FromAddress) == AF_INET) {
-		fromAddr = &((struct sockaddr_in *)&FromAddress)->sin_addr;
-	    } 
-#if defined(IPv6) && defined(AF_INET6)
-	    else if ((SOCKADDR_FAMILY(FromAddress) == AF_INET6) &&
-	      IN6_IS_ADDR_V4MAPPED(
-		  &((struct sockaddr_in6 *)&FromAddress)->sin6_addr)) {
-		fromAddr = &((struct sockaddr_in6 *)&FromAddress)->sin6_addr.s6_addr[12];
-	    } 
-#endif
-	}
-#if defined(IPv6) && defined(AF_INET6)
-	else if (addrlen == sizeof(struct in6_addr)) {
-	    if (SOCKADDR_FAMILY(FromAddress) == AF_INET6) {
-		fromAddr = &((struct sockaddr_in6 *)&FromAddress)->sin6_addr;
-	    } else if ((SOCKADDR_FAMILY(FromAddress) == AF_INET) &&
-	      IN6_IS_ADDR_V4MAPPED((struct in6_addr *) address)) {
-		fromAddr = &((struct sockaddr_in *)&FromAddress)->sin_addr;
-		regAddr = &((struct sockaddr_in6 *)&address)->sin6_addr.s6_addr[12];
-		regAddrlen = sizeof(struct in_addr);
-	    }
-	}
-#endif
-	if (fromAddr && memcmp(regAddr, fromAddr, regAddrlen) != 0) {
-	    return;
-	}
-    }
-    newAddress = (CARD8 *) xalloc (addrlen * sizeof (CARD8));
-    if (!newAddress)
-	return;
-    if (!XdmcpReallocARRAY16 (&ConnectionTypes, ConnectionTypes.length + 1))
-    {
-	xfree (newAddress);
-	return;
-    }
-    if (!XdmcpReallocARRAYofARRAY8 (&ConnectionAddresses,
-				    ConnectionAddresses.length +  1))
-    {
-	xfree (newAddress);
-	return;
-    }
-    ConnectionTypes.data[ConnectionTypes.length - 1] = (CARD16) type;
-    for (i = 0; i < addrlen; i++)
-	newAddress[i] = address[i];
-    ConnectionAddresses.data[ConnectionAddresses.length-1].data = newAddress;
-    ConnectionAddresses.data[ConnectionAddresses.length-1].length = addrlen;
-}
-
-/*
- * Register an Authorization Name.  XDMCP advertises this list
- * to the manager.
- */
-
-static ARRAYofARRAY8	AuthorizationNames;
-
-void
-XdmcpRegisterAuthorizations (void)
-{
-    XdmcpDisposeARRAYofARRAY8 (&AuthorizationNames);
-    RegisterAuthorizations ();
-}
-
-void
-XdmcpRegisterAuthorization (char *name, int namelen)
-{
-    ARRAY8  authName;
-    int	    i;
-
-    authName.data = (CARD8 *) xalloc (namelen * sizeof (CARD8));
-    if (!authName.data)
-	return;
-    if (!XdmcpReallocARRAYofARRAY8 (&AuthorizationNames, AuthorizationNames.length +1))
-    {
-	xfree (authName.data);
-	return;
-    }
-    for (i = 0; i < namelen; i++)
-	authName.data[i] = (CARD8) name[i];
-    authName.length = namelen;
-    AuthorizationNames.data[AuthorizationNames.length-1] = authName;
-}
-
-/*
- * Register the DisplayClass string
- */
-
-ARRAY8	DisplayClass;
-
-void
-XdmcpRegisterDisplayClass (char *name, int length)
-{
-    int	    i;
-
-    XdmcpDisposeARRAY8 (&DisplayClass);
-    if (!XdmcpAllocARRAY8 (&DisplayClass, length))
-	return;
-    for (i = 0; i < length; i++)
-	DisplayClass.data[i] = (CARD8) name[i];
-}
-
-/*
- * Register the Manufacturer display ID
- */
-
-ARRAY8 ManufacturerDisplayID;
-
-void
-XdmcpRegisterManufacturerDisplayID (char *name, int length)
-{
-    int	    i;
-
-    XdmcpDisposeARRAY8 (&ManufacturerDisplayID);
-    if (!XdmcpAllocARRAY8 (&ManufacturerDisplayID, length))
-	return;
-    for (i = 0; i < length; i++)
-	ManufacturerDisplayID.data[i] = (CARD8) name[i];
-}
-
-/* 
- * initialize XDMCP; create the socket, compute the display
- * number, set up the state machine
- */
-
-void 
-XdmcpInit(void)
-{
-    state = XDM_INIT_STATE;
-#ifdef HASXDMAUTH
-    if (xdmAuthCookie)
-	XdmAuthenticationInit (xdmAuthCookie, strlen (xdmAuthCookie));
-#endif
-    if (state != XDM_OFF)
-    {
-	XdmcpRegisterAuthorizations();
-	XdmcpRegisterDisplayClass (defaultDisplayClass, strlen (defaultDisplayClass));
-	AccessUsingXdmcp();
-	RegisterBlockAndWakeupHandlers (XdmcpBlockHandler, XdmcpWakeupHandler,
-				        (pointer) 0);
-    	timeOutRtx = 0;
-    	DisplayNumber = (CARD16) atoi(display);
-    	get_xdmcp_sock();
-    	send_packet();
-    }
-}
-
-void
-XdmcpReset (void)
-{
-    state = XDM_INIT_STATE;
-    if (state != XDM_OFF)
-    {
-	RegisterBlockAndWakeupHandlers (XdmcpBlockHandler, XdmcpWakeupHandler,
-				        (pointer) 0);
-    	timeOutRtx = 0;
-    	send_packet();
-    }
-}
-
-/*
- * Called whenever a new connection is created; notices the
- * first connection and saves it to terminate the session
- * when it is closed
- */
-
-void
-XdmcpOpenDisplay(int sock)
-{
-    if (state != XDM_AWAIT_MANAGE_RESPONSE)
-	return;
-    state = XDM_RUN_SESSION;
-    sessionSocket = sock;
-}
-
-void 
-XdmcpCloseDisplay(int sock)
-{
-    if ((state != XDM_RUN_SESSION && state != XDM_AWAIT_ALIVE_RESPONSE)
-	|| sessionSocket != sock)
-	    return;
-    state = XDM_INIT_STATE;
-    if (OneSession)
-	dispatchException |= DE_TERMINATE;
-    else
-	dispatchException |= DE_RESET;
-    isItTimeToYield = TRUE;
-}
-
-/*
- * called before going to sleep, this routine
- * may modify the timeout value about to be sent
- * to select; in this way XDMCP can do appropriate things
- * dynamically while starting up
- */
-
-/*ARGSUSED*/
-static void
-XdmcpBlockHandler(
-    pointer	    data,   /* unused */
-    struct timeval  **wt,
-    pointer	    pReadmask)
-{
-    fd_set *LastSelectMask = (fd_set*)pReadmask;
-    CARD32 millisToGo;
-
-    if (state == XDM_OFF)
-	return;
-    FD_SET(xdmcpSocket, LastSelectMask);
-#if defined(IPv6) && defined(AF_INET6)
-    if (xdmcpSocket6 >= 0)
-	FD_SET(xdmcpSocket6, LastSelectMask);
-#endif
-    if (timeOutTime == 0)
-	return;
-    millisToGo = timeOutTime - GetTimeInMillis();
-    if ((int) millisToGo < 0)
-	millisToGo = 0;
-    AdjustWaitForDelay (wt, millisToGo);
-}
-
-/*
- * called after select returns; this routine will
- * recognise when XDMCP packets await and
- * process them appropriately
- */
-
-/*ARGSUSED*/
-static void
-XdmcpWakeupHandler(
-    pointer data,   /* unused */
-    int	    i,
-    pointer pReadmask)
-{
-    fd_set* LastSelectMask = (fd_set*)pReadmask;
-    fd_set   devicesReadable;
-
-    if (state == XDM_OFF)
-	return;
-    if (i > 0)
-    {
-	if (FD_ISSET(xdmcpSocket, LastSelectMask))
-	{
-	    receive_packet(xdmcpSocket);
-	    FD_CLR(xdmcpSocket, LastSelectMask);
-	} 
-#if defined(IPv6) && defined(AF_INET6)
-	if (xdmcpSocket6 >= 0 && FD_ISSET(xdmcpSocket6, LastSelectMask))
-	{
-	    receive_packet(xdmcpSocket6);
-	    FD_CLR(xdmcpSocket6, LastSelectMask);
-	} 
-#endif
-	XFD_ANDSET(&devicesReadable, LastSelectMask, &EnabledDevices);
-	if (XFD_ANYSET(&devicesReadable))
-	{
-	    if (state == XDM_AWAIT_USER_INPUT)
-		restart();
-	    else if (state == XDM_RUN_SESSION)
-		keepaliveDormancy = defaultKeepaliveDormancy;
-	}
-	if (XFD_ANYSET(&AllClients) && state == XDM_RUN_SESSION)
-	    timeOutTime = GetTimeInMillis() +  keepaliveDormancy * 1000;
-    }
-    else if (timeOutTime && (int) (GetTimeInMillis() - timeOutTime) >= 0)
-    {
-    	if (state == XDM_RUN_SESSION)
-    	{
-	    state = XDM_KEEPALIVE;
-	    send_packet();
-    	}
-    	else
-	    timeout();
-    }
-}
-
-/*
- * This routine should be called from the routine that drives the
- * user's host menu when the user selects a host
- */
-
-static void
-XdmcpSelectHost(
-    struct sockaddr	*host_sockaddr,
-    int			host_len,
-    ARRAY8Ptr		AuthenticationName)
-{
-    state = XDM_START_CONNECTION;
-    memmove(&req_sockaddr, host_sockaddr, host_len);
-    req_socklen = host_len;
-    XdmcpSetAuthentication (AuthenticationName);
-    send_packet();
-}
-
-/*
- * !!! this routine should be replaced by a routine that adds
- * the host to the user's host menu. the current version just
- * selects the first host to respond with willing message.
- */
-
-/*ARGSUSED*/
-static void
-XdmcpAddHost(
-    struct sockaddr    *from,
-    int			fromlen,
-    ARRAY8Ptr		AuthenticationName,
-    ARRAY8Ptr		hostname,
-    ARRAY8Ptr		status)
-{
-    XdmcpSelectHost(from, fromlen, AuthenticationName);
-}
-
-/*
- * A message is queued on the socket; read it and
- * do the appropriate thing
- */
-
-ARRAY8	UnwillingMessage = { (CARD8) 14, (CARD8 *) "Host unwilling" };
-
-static void
-receive_packet(int socketfd)
-{
-#if defined(IPv6) && defined(AF_INET6)
-    struct sockaddr_storage from;
-#else
-    struct sockaddr_in from;
-#endif
-    int fromlen = sizeof(from);
-    XdmcpHeader	header;
-
-    /* read message off socket */
-    if (!XdmcpFill (socketfd, &buffer, (XdmcpNetaddr) &from, &fromlen))
-	return;
-
-    /* reset retransmission backoff */
-    timeOutRtx = 0;
-
-    if (!XdmcpReadHeader (&buffer, &header))
-	return;
-
-    if (header.version != XDM_PROTOCOL_VERSION)
-	return;
-
-    switch (header.opcode) {
-    case WILLING:
-	recv_willing_msg((struct sockaddr *) &from, fromlen, header.length);
-	break;
-    case UNWILLING:
-	XdmcpFatal("Manager unwilling", &UnwillingMessage);
-	break;
-    case ACCEPT:
-	recv_accept_msg(header.length);
-	break;
-    case DECLINE:
-	recv_decline_msg(header.length);
-	break;
-    case REFUSE:
-	recv_refuse_msg(header.length);
-	break;
-    case FAILED:
-	recv_failed_msg(header.length);
-	break;
-    case ALIVE:
-	recv_alive_msg(header.length);
-	break;
-    }
-}
-
-/*
- * send the appropriate message given the current state
- */
-
-static void
-send_packet(void)
-{
-    int rtx;
-    switch (state) {
-    case XDM_QUERY:
-    case XDM_BROADCAST:
-    case XDM_INDIRECT:
-#if defined(IPv6)  && defined(AF_INET6)
-    case XDM_MULTICAST:
-#endif
-	send_query_msg();
-	break;
-    case XDM_START_CONNECTION:
-	send_request_msg();
-	break;
-    case XDM_MANAGE:
-	send_manage_msg();
-	break;
-    case XDM_KEEPALIVE:
-	send_keepalive_msg();
-	break;
-    default:
-	break;
-    }
-    rtx = (XDM_MIN_RTX << timeOutRtx);
-    if (rtx > XDM_MAX_RTX)
-	rtx = XDM_MAX_RTX;
-    timeOutTime = GetTimeInMillis() + rtx * 1000;
-}
-
-/*
- * The session is declared dead for some reason; too many
- * timeouts, or Keepalive failure.
- */
-
-void
-XdmcpDeadSession (char *reason)
-{
-    ErrorF ("XDM: %s, declaring session dead\n", reason);
-    state = XDM_INIT_STATE;
-    isItTimeToYield = TRUE;
-    dispatchException |= DE_RESET;
-    timeOutTime = 0;
-    timeOutRtx = 0;
-    send_packet();
-}
-
-/*
- * Timeout waiting for an XDMCP response.
- */
-
-static void
-timeout(void)
-{
-    timeOutRtx++;
-    if (state == XDM_AWAIT_ALIVE_RESPONSE && timeOutRtx >= XDM_KA_RTX_LIMIT )
-    {
-	XdmcpDeadSession ("too many keepalive retransmissions");
-	return;
-    }
-    else if (timeOutRtx >= XDM_RTX_LIMIT)
-    {
-	/* Quit if "-once" specified, otherwise reset and try again. */
-        if (OneSession) {
-	    dispatchException |= DE_TERMINATE;
-	    ErrorF("XDM: too many retransmissions\n");
-	} else { 
-	    XdmcpDeadSession("too many retransmissions");
-	}
-	return;
-    }
-
-#if defined(IPv6) && defined(AF_INET6)
-    if (state == XDM_COLLECT_QUERY || state == XDM_COLLECT_INDIRECT_QUERY) {
-	/* Try next address */
-	for (mgrAddr = mgrAddr->ai_next; ; mgrAddr = mgrAddr->ai_next) {
-	    if (mgrAddr == NULL) {
-		mgrAddr = mgrAddrFirst;
-	    }
-	    if (mgrAddr->ai_family == AF_INET 
-	      || mgrAddr->ai_family == AF_INET6)
-		break;
-	}
-#ifndef SIN6_LEN
-	ManagerAddressLen = mgrAddr->ai_addrlen;
-#endif
-	memcpy(&ManagerAddress, mgrAddr->ai_addr, mgrAddr->ai_addrlen);
-    }
-#endif
-
-    switch (state) {
-    case XDM_COLLECT_QUERY:
-	state = XDM_QUERY;
-	break;
-    case XDM_COLLECT_BROADCAST_QUERY:
-	state = XDM_BROADCAST;
-	break;
-#if defined(IPv6) && defined(AF_INET6)
-    case XDM_COLLECT_MULTICAST_QUERY:
-	state = XDM_MULTICAST;
-	break;
-#endif
-    case XDM_COLLECT_INDIRECT_QUERY:
-	state = XDM_INDIRECT;
-	break;
-    case XDM_AWAIT_REQUEST_RESPONSE:
-	state = XDM_START_CONNECTION;
-	break;
-    case XDM_AWAIT_MANAGE_RESPONSE:
-	state = XDM_MANAGE;
-	break;
-    case XDM_AWAIT_ALIVE_RESPONSE:
-	state = XDM_KEEPALIVE;
-	break;
-    default:
-	break;
-    }
-    send_packet();
-}
-
-static void
-restart(void)
-{
-    state = XDM_INIT_STATE;
-    timeOutRtx = 0;
-    send_packet();
-}
-
-int
-XdmcpCheckAuthentication (
-    ARRAY8Ptr	Name,
-    ARRAY8Ptr	Data,
-    int	packet_type)
-{
-    return (XdmcpARRAY8Equal (Name, AuthenticationName) &&
-	    (AuthenticationName->length == 0 ||
-	     (*AuthenticationFuncs->Validator) (AuthenticationData, Data, packet_type)));
-}
-
-int
-XdmcpAddAuthorization (
-    ARRAY8Ptr	name,
-    ARRAY8Ptr	data)
-{
-    AddAuthorFunc AddAuth;
-
-    if (AuthenticationFuncs && AuthenticationFuncs->AddAuth)
-	AddAuth = AuthenticationFuncs->AddAuth;
-    else
-	AddAuth = AddAuthorization;
-    return (*AddAuth) ((unsigned short)name->length,
-		       (char *)name->data,
-		       (unsigned short)data->length,
-		       (char *)data->data);
-}
-
-/*
- * from here to the end of this file are routines private
- * to the state machine.
- */
-
-static void
-get_xdmcp_sock(void)
-{
-#ifdef STREAMSCONN
-    struct netconfig *nconf;
-
-    if ((xdmcpSocket = t_open("/dev/udp", O_RDWR, 0)) < 0) {
-	XdmcpWarning("t_open() of /dev/udp failed");
-	return;
-    }
-
-    if( t_bind(xdmcpSocket,NULL,NULL) < 0 ) {
-	XdmcpWarning("UDP socket creation failed");
-	t_error("t_bind(xdmcpSocket) failed" );
-	t_close(xdmcpSocket);
-	return;
-    }
-
-    /*
-     * This part of the code looks contrived. It will actually fit in nicely
-     * when the CLTS part of Xtrans is implemented.
-     */
- 
-    if( (nconf=getnetconfigent("udp")) == NULL ) {
-	XdmcpWarning("UDP socket creation failed: getnetconfigent()");
-	t_unbind(xdmcpSocket);
-	t_close(xdmcpSocket);
-	return;
-    }
- 
-    if( netdir_options(nconf, ND_SET_BROADCAST, xdmcpSocket, NULL) ) {
-	XdmcpWarning("UDP set broadcast option failed: netdir_options()");
-	freenetconfigent(nconf);
-	t_unbind(xdmcpSocket);
-	t_close(xdmcpSocket);
-	return;
-    }
- 
-    freenetconfigent(nconf);
-#else
-    int soopts = 1;
-
-#if defined(IPv6) && defined(AF_INET6)
-    if ((xdmcpSocket6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
-	XdmcpWarning("INET6 UDP socket creation failed");
-#endif
-    if ((xdmcpSocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
-	XdmcpWarning("UDP socket creation failed");
-#ifdef SO_BROADCAST
-    else if (setsockopt(xdmcpSocket, SOL_SOCKET, SO_BROADCAST, (char *)&soopts,
-	sizeof(soopts)) < 0)
-	    XdmcpWarning("UDP set broadcast socket-option failed");
-#endif /* SO_BROADCAST */
-    if (xdmcpSocket >= 0 && xdm_from != NULL) {
-	if (bind(xdmcpSocket, (struct sockaddr *)&FromAddress, 
-		 FromAddressLen) < 0) {
-	    FatalError("Xserver: failed to bind to -from address: %s\n", xdm_from);
-	}
-    }
-#endif /* STREAMSCONN */
-}
-
-static void
-send_query_msg(void)
-{
-    XdmcpHeader	header;
-    Bool	broadcast = FALSE;
-#if defined(IPv6) && defined(AF_INET6)
-    Bool	multicast = FALSE;
-#endif
-    int		i;
-    int 	socketfd = xdmcpSocket;
-
-    header.version = XDM_PROTOCOL_VERSION;
-    switch(state){
-    case XDM_QUERY:
-	header.opcode = (CARD16) QUERY; 
-	state = XDM_COLLECT_QUERY;
-	break;
-    case XDM_BROADCAST:
-	header.opcode = (CARD16) BROADCAST_QUERY;
-	state = XDM_COLLECT_BROADCAST_QUERY;
-	broadcast = TRUE;
-	break;
-#if defined(IPv6) && defined(AF_INET6)
-    case XDM_MULTICAST:
-	header.opcode = (CARD16) BROADCAST_QUERY;
-	state = XDM_COLLECT_MULTICAST_QUERY;
-	multicast = TRUE;
-	break;
-#endif
-    case XDM_INDIRECT:
-	header.opcode = (CARD16) INDIRECT_QUERY;
-	state = XDM_COLLECT_INDIRECT_QUERY;
-	break;
-    default:
-	break;
-    }
-    header.length = 1;
-    for (i = 0; i < AuthenticationNames.length; i++)
-	header.length += 2 + AuthenticationNames.data[i].length;
-
-    XdmcpWriteHeader (&buffer, &header);
-    XdmcpWriteARRAYofARRAY8 (&buffer, &AuthenticationNames);
-    if (broadcast)
-    {
-	int i;
-
-	for (i = 0; i < NumBroadcastAddresses; i++)
-	    XdmcpFlush (xdmcpSocket, &buffer, (XdmcpNetaddr) &BroadcastAddresses[i],
-			sizeof (struct sockaddr_in));
-    }
-#if defined(IPv6) && defined(AF_INET6)
-    else if (multicast)
-    {
-	struct multicastinfo *mcl;
-	struct addrinfo *ai;
-
-	for (mcl = mcastlist; mcl != NULL; mcl = mcl->next) {
-	    for (ai = mcl->ai ; ai != NULL; ai = ai->ai_next) {
-		if (ai->ai_family == AF_INET) {
-		    unsigned char hopflag = (unsigned char) mcl->hops;
-		    socketfd = xdmcpSocket;
-		    setsockopt(socketfd, IPPROTO_IP, IP_MULTICAST_TTL,
-		      &hopflag, sizeof(hopflag));
-		} else if (ai->ai_family == AF_INET6) {
-		    int hopflag6 = mcl->hops;
-		    socketfd = xdmcpSocket6;
-		    setsockopt(socketfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
-		      &hopflag6, sizeof(hopflag6));
-		} else {
-		    continue;
-		}
-		XdmcpFlush (socketfd, &buffer, 
-		  	    (XdmcpNetaddr) ai->ai_addr, ai->ai_addrlen);
-		break;
-	    }
-	}
-    }
-#endif
-    else
-    {
-#if defined(IPv6) && defined(AF_INET6)
-	if (SOCKADDR_FAMILY(ManagerAddress) == AF_INET6)
-	    socketfd = xdmcpSocket6;
-#endif	
-	XdmcpFlush (socketfd, &buffer, (XdmcpNetaddr) &ManagerAddress,
-		    ManagerAddressLen);
-    }
-}
-
-static void
-recv_willing_msg(
-    struct sockaddr	*from,
-    int			fromlen,
-    unsigned		length)
-{
-    ARRAY8	authenticationName;
-    ARRAY8	hostname;
-    ARRAY8	status;
-
-    authenticationName.data = 0;
-    hostname.data = 0;
-    status.data = 0;
-    if (XdmcpReadARRAY8 (&buffer, &authenticationName) &&
-	XdmcpReadARRAY8 (&buffer, &hostname) &&
-	XdmcpReadARRAY8 (&buffer, &status))
-    {
-    	if (length == 6 + authenticationName.length +
-		      hostname.length + status.length)
-    	{
-	    switch (state)
-	    {
-	    case XDM_COLLECT_QUERY:
-	    	XdmcpSelectHost(from, fromlen, &authenticationName);
-	    	break;
-	    case XDM_COLLECT_BROADCAST_QUERY:
-#if defined(IPv6) && defined(AF_INET6)
-	    case XDM_COLLECT_MULTICAST_QUERY:
-#endif
-	    case XDM_COLLECT_INDIRECT_QUERY:
-	    	XdmcpAddHost(from, fromlen, &authenticationName, &hostname, &status);
-	    	break;
-	    default:
-		break;
-    	    }
-    	}
-    }
-    XdmcpDisposeARRAY8 (&authenticationName);
-    XdmcpDisposeARRAY8 (&hostname);
-    XdmcpDisposeARRAY8 (&status);
-}
-
-static void
-send_request_msg(void)
-{
-    XdmcpHeader	    header;
-    int		    length;
-    int		    i;
-    CARD16	    XdmcpConnectionType;
-    ARRAY8	    authenticationData;
-    int		    socketfd = xdmcpSocket;
-
-    switch (SOCKADDR_FAMILY(ManagerAddress))
-    {
-    case AF_INET:	XdmcpConnectionType=FamilyInternet; break;
-#if defined(IPv6) && defined(AF_INET6)
-    case AF_INET6:	XdmcpConnectionType=FamilyInternet6; break;
-#endif
-    default:		XdmcpConnectionType=0xffff; break;
-    }
-
-    header.version = XDM_PROTOCOL_VERSION;
-    header.opcode = (CARD16) REQUEST;
-
-    length = 2;					    /* display number */
-    length += 1 + 2 * ConnectionTypes.length;	    /* connection types */
-    length += 1;				    /* connection addresses */
-    for (i = 0; i < ConnectionAddresses.length; i++)
-	length += 2 + ConnectionAddresses.data[i].length;
-    authenticationData.length = 0;
-    authenticationData.data = 0;
-    if (AuthenticationFuncs)
-    {
-	(*AuthenticationFuncs->Generator) (AuthenticationData,
-					   &authenticationData,
- 					   REQUEST);
-    }
-    length += 2 + AuthenticationName->length;	    /* authentication name */
-    length += 2 + authenticationData.length;	    /* authentication data */
-    length += 1;				    /* authorization names */
-    for (i = 0; i < AuthorizationNames.length; i++)
-	length += 2 + AuthorizationNames.data[i].length;
-    length += 2 + ManufacturerDisplayID.length;	    /* display ID */
-    header.length = length;
-
-    if (!XdmcpWriteHeader (&buffer, &header))
-    {
-	XdmcpDisposeARRAY8 (&authenticationData);
-	return;
-    }
-    XdmcpWriteCARD16 (&buffer, DisplayNumber);
-    XdmcpWriteCARD8 (&buffer, ConnectionTypes.length);
-
-    /* The connection array is send reordered, so that connections of	*/
-    /* the same address type as the XDMCP manager connection are send	*/
-    /* first. This works around a bug in xdm. mario@klebsch.de 		*/
-    for (i = 0; i < (int)ConnectionTypes.length; i++)
-	if (ConnectionTypes.data[i]==XdmcpConnectionType)
-	    XdmcpWriteCARD16 (&buffer, ConnectionTypes.data[i]);
-    for (i = 0; i < (int)ConnectionTypes.length; i++)
-	if (ConnectionTypes.data[i]!=XdmcpConnectionType)
-	    XdmcpWriteCARD16 (&buffer, ConnectionTypes.data[i]);
-
-    XdmcpWriteCARD8 (&buffer, ConnectionAddresses.length);
-    for (i = 0; i < (int)ConnectionAddresses.length; i++)
-	if ( (i<ConnectionTypes.length) && 
-	     (ConnectionTypes.data[i]==XdmcpConnectionType) )
-	    XdmcpWriteARRAY8 (&buffer, &ConnectionAddresses.data[i]);
-    for (i = 0; i < (int)ConnectionAddresses.length; i++)
-	if ( (i>=ConnectionTypes.length) ||
-	     (ConnectionTypes.data[i]!=XdmcpConnectionType) )
-	    XdmcpWriteARRAY8 (&buffer, &ConnectionAddresses.data[i]);
-
-    XdmcpWriteARRAY8 (&buffer, AuthenticationName);
-    XdmcpWriteARRAY8 (&buffer, &authenticationData);
-    XdmcpDisposeARRAY8 (&authenticationData);
-    XdmcpWriteARRAYofARRAY8 (&buffer, &AuthorizationNames);
-    XdmcpWriteARRAY8 (&buffer, &ManufacturerDisplayID);
-#if defined(IPv6) && defined(AF_INET6)
-    if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
-	socketfd = xdmcpSocket6;
-#endif
-    if (XdmcpFlush (socketfd, &buffer, 
-			(XdmcpNetaddr) &req_sockaddr, req_socklen))
-	state = XDM_AWAIT_REQUEST_RESPONSE;
-}
-
-static void
-recv_accept_msg(unsigned length)
-{
-    CARD32  AcceptSessionID;
-    ARRAY8  AcceptAuthenticationName, AcceptAuthenticationData;
-    ARRAY8  AcceptAuthorizationName, AcceptAuthorizationData;
-
-    if (state != XDM_AWAIT_REQUEST_RESPONSE)
-	return;
-    AcceptAuthenticationName.data = 0;
-    AcceptAuthenticationData.data = 0;
-    AcceptAuthorizationName.data = 0;
-    AcceptAuthorizationData.data = 0;
-    if (XdmcpReadCARD32 (&buffer, &AcceptSessionID) &&
-	XdmcpReadARRAY8 (&buffer, &AcceptAuthenticationName) &&
-	XdmcpReadARRAY8 (&buffer, &AcceptAuthenticationData) &&
-	XdmcpReadARRAY8 (&buffer, &AcceptAuthorizationName) &&
-	XdmcpReadARRAY8 (&buffer, &AcceptAuthorizationData))
-    {
-    	if (length == 12 + AcceptAuthenticationName.length +
-		      	   AcceptAuthenticationData.length +
-		      	   AcceptAuthorizationName.length +
- 		      	   AcceptAuthorizationData.length)
-    	{
-	    if (!XdmcpCheckAuthentication (&AcceptAuthenticationName,
-				      &AcceptAuthenticationData, ACCEPT))
-	    {
-		XdmcpFatal ("Authentication Failure", &AcceptAuthenticationName);
-	    }
-	    /* permit access control manipulations from this host */
-	    AugmentSelf (&req_sockaddr, req_socklen);
-	    /* if the authorization specified in the packet fails
-	     * to be acceptable, enable the local addresses
-	     */
-	    if (!XdmcpAddAuthorization (&AcceptAuthorizationName,
-					&AcceptAuthorizationData))
-	    {
-		AddLocalHosts ();
-	    }
-	    SessionID = AcceptSessionID;
-    	    state = XDM_MANAGE;
-    	    send_packet();
-    	}
-    }
-    XdmcpDisposeARRAY8 (&AcceptAuthenticationName);
-    XdmcpDisposeARRAY8 (&AcceptAuthenticationData);
-    XdmcpDisposeARRAY8 (&AcceptAuthorizationName);
-    XdmcpDisposeARRAY8 (&AcceptAuthorizationData);
-}
-
-static void
-recv_decline_msg(unsigned length)
-{
-    ARRAY8  status, DeclineAuthenticationName, DeclineAuthenticationData;
-
-    status.data = 0;
-    DeclineAuthenticationName.data = 0;
-    DeclineAuthenticationData.data = 0;
-    if (XdmcpReadARRAY8 (&buffer, &status) &&
-	XdmcpReadARRAY8 (&buffer, &DeclineAuthenticationName) &&
-	XdmcpReadARRAY8 (&buffer, &DeclineAuthenticationData))
-    {
-    	if (length == 6 + status.length +
-		      	  DeclineAuthenticationName.length +
- 		      	  DeclineAuthenticationData.length &&
-	    XdmcpCheckAuthentication (&DeclineAuthenticationName,
-				      &DeclineAuthenticationData, DECLINE))
-    	{
-	    XdmcpFatal ("Session declined", &status);
-    	}
-    }
-    XdmcpDisposeARRAY8 (&status);
-    XdmcpDisposeARRAY8 (&DeclineAuthenticationName);
-    XdmcpDisposeARRAY8 (&DeclineAuthenticationData);
-}
-
-static void
-send_manage_msg(void)
-{
-    XdmcpHeader	header;
-    int socketfd = xdmcpSocket;
-
-    header.version = XDM_PROTOCOL_VERSION;
-    header.opcode = (CARD16) MANAGE;
-    header.length = 8 + DisplayClass.length;
-
-    if (!XdmcpWriteHeader (&buffer, &header))
-	return;
-    XdmcpWriteCARD32 (&buffer, SessionID);
-    XdmcpWriteCARD16 (&buffer, DisplayNumber);
-    XdmcpWriteARRAY8 (&buffer, &DisplayClass);
-    state = XDM_AWAIT_MANAGE_RESPONSE;
-#if defined(IPv6) && defined(AF_INET6)
-    if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
-	socketfd = xdmcpSocket6;
-#endif
-    XdmcpFlush (socketfd, &buffer, (XdmcpNetaddr) &req_sockaddr, req_socklen);
-}
-
-static void
-recv_refuse_msg(unsigned length)
-{
-    CARD32  RefusedSessionID;
-
-    if (state != XDM_AWAIT_MANAGE_RESPONSE)
-	return;
-    if (length != 4)
-	return;
-    if (XdmcpReadCARD32 (&buffer, &RefusedSessionID))
-    {
-	if (RefusedSessionID == SessionID)
-	{
-    	    state = XDM_START_CONNECTION;
-    	    send_packet();
-	}
-    }
-}
-
-static void
-recv_failed_msg(unsigned length)
-{
-    CARD32  FailedSessionID;
-    ARRAY8  status;
-
-    if (state != XDM_AWAIT_MANAGE_RESPONSE)
-	return;
-    status.data = 0;
-    if (XdmcpReadCARD32 (&buffer, &FailedSessionID) &&
-	XdmcpReadARRAY8 (&buffer, &status))
-    {
-    	if (length == 6 + status.length &&
-	    SessionID == FailedSessionID)
-	{
-	    XdmcpFatal ("Session failed", &status);
-	}
-    }
-    XdmcpDisposeARRAY8 (&status);
-}
-
-static void
-send_keepalive_msg(void)
-{
-    XdmcpHeader	header;
-    int socketfd = xdmcpSocket;
-
-    header.version = XDM_PROTOCOL_VERSION;
-    header.opcode = (CARD16) KEEPALIVE;
-    header.length = 6;
-
-    XdmcpWriteHeader (&buffer, &header);
-    XdmcpWriteCARD16 (&buffer, DisplayNumber);
-    XdmcpWriteCARD32 (&buffer, SessionID);
-
-    state = XDM_AWAIT_ALIVE_RESPONSE;
-#if defined(IPv6) && defined(AF_INET6)
-    if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
-	socketfd = xdmcpSocket6;
-#endif
-    XdmcpFlush (socketfd, &buffer, (XdmcpNetaddr) &req_sockaddr, req_socklen);
-}
-
-static void
-recv_alive_msg (unsigned length)
-{
-    CARD8   SessionRunning;
-    CARD32  AliveSessionID;
-
-    if (state != XDM_AWAIT_ALIVE_RESPONSE)
-	return;
-    if (length != 5)
-	return;
-    if (XdmcpReadCARD8 (&buffer, &SessionRunning) &&
-	XdmcpReadCARD32 (&buffer, &AliveSessionID))
-    {
-    	if (SessionRunning && AliveSessionID == SessionID)
-    	{
-	    /* backoff dormancy period */
-	    state = XDM_RUN_SESSION;
-	    if ((GetTimeInMillis() - lastDeviceEventTime.milliseconds) >
-		keepaliveDormancy * 1000)
-	    {
-		keepaliveDormancy <<= 1;
-		if (keepaliveDormancy > XDM_MAX_DORMANCY)
-		    keepaliveDormancy = XDM_MAX_DORMANCY;
-	    }
-	    timeOutTime = GetTimeInMillis() + keepaliveDormancy * 1000;
-    	}
-	else
-    	{
-	    XdmcpDeadSession ("Alive response indicates session dead");
-    	}
-    }
-}
-
-static  void
-XdmcpFatal (
-    char	*type,
-    ARRAY8Ptr	status)
-{
-    FatalError ("XDMCP fatal error: %s %*.*s\n", type,
-	   status->length, status->length, status->data);
-}
-
-static  void
-XdmcpWarning(char *str)
-{
-    ErrorF("XDMCP warning: %s\n", str);
-}
-
-static void
-get_addr_by_name(
-    char *	argtype,
-    char *	namestr,
-    int		port,
-    int		socktype,
-    SOCKADDR_TYPE *addr,
-    SOCKLEN_TYPE *addrlen
-#if defined(IPv6) && defined(AF_INET6)
-      ,
-    struct addrinfo **aip,
-    struct addrinfo **aifirstp
-#endif
-    )
-{
-#if defined(IPv6) && defined(AF_INET6)
-    struct addrinfo *ai;
-    struct addrinfo hints;
-    char portstr[6];
-    char *pport = portstr;
-    int gaierr;
-
-    bzero(&hints, sizeof(hints));
-    hints.ai_socktype = socktype;
-
-    if (port == 0) {
-	pport = NULL;
-    } else if (port > 0 && port < 65535) {
-	sprintf(portstr, "%d", port);
-    } else {
-	FatalError("Xserver: port out of range: %d\n", port);
-    }
-
-    if (*aifirstp != NULL) {
-	freeaddrinfo(*aifirstp);	
-	*aifirstp = NULL;
-    }
-
-    if ((gaierr = getaddrinfo(namestr, pport, &hints, aifirstp)) == 0) {
-	for (ai = *aifirstp; ai != NULL; ai = ai->ai_next) {
-	    if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6)
-		break;
-	}
-	if ((ai == NULL) || (ai->ai_addrlen > sizeof(SOCKADDR_TYPE))) {
-	    FatalError ("Xserver: %s host %s not on supported network type\n", 
-	      argtype, namestr);
-	} else {
-	    *aip = ai;
-	    *addrlen = ai->ai_addrlen;
-	    memcpy(addr, ai->ai_addr, ai->ai_addrlen);
-	}
-    } else {
-	FatalError("Xserver: %s: %s %s\n", gai_strerror(gaierr), argtype, namestr);
-    }    
-#else
-    struct hostent *hep;
-#ifdef XTHREADS_NEEDS_BYNAMEPARAMS
-    _Xgethostbynameparams hparams;
-#endif
-#if defined(WIN32) && (defined(TCPCONN) || defined(DNETCONN))
-    _XSERVTransWSAStartup(); 
-#endif
-    if (!(hep = _XGethostbyname(namestr, hparams)))
-    {
-	FatalError("Xserver: %s unknown host: %s\n", argtype, namestr);
-    }
-    if (hep->h_length == sizeof (struct in_addr))
-    {
-	memmove(&addr->sin_addr, hep->h_addr, hep->h_length);
-	*addrlen = sizeof(struct sockaddr_in);
-	addr->sin_family = AF_INET;
-	addr->sin_port = htons (port);
-    }
-    else
-    {
-	FatalError("Xserver: %s host on strange network %s\n", argtype, namestr);
-    }
-#endif
-}
-
-static void
-get_manager_by_name(
-    int	    argc,
-    char    **argv,
-    int	    i)
-{
-
-    if ((i + 1) == argc)
-    {
-	FatalError("Xserver: missing %s host name in command line\n", argv[i]);
-    }
-
-    get_addr_by_name(argv[i], argv[i+1], xdm_udp_port, SOCK_DGRAM, 
-      &ManagerAddress, &ManagerAddressLen
-#if defined(IPv6) && defined(AF_INET6)
-      , &mgrAddr, &mgrAddrFirst
-#endif
-	);
-}
-
-
-static void
-get_fromaddr_by_name(
-    int	    argc,
-    char    **argv,
-    int	    i)
-{
-#if defined(IPv6) && defined(AF_INET6)
-    struct addrinfo *ai = NULL;
-    struct addrinfo *aifirst = NULL;
-#endif
-    if (i == argc)
-    {
-	FatalError("Xserver: missing -from host name in command line\n");
-    }
-    get_addr_by_name("-from", argv[i], 0, 0, &FromAddress, &FromAddressLen
-#if defined(IPv6) && defined(AF_INET6)
-      , &ai, &aifirst
-#endif
-	);
-    xdm_from = argv[i];
-}
-
-
-#if defined(IPv6) && defined(AF_INET6)
-static int
-get_mcast_options(argc, argv, i)
-    int	    argc, i;
-    char    **argv;
-{
-    char *address = XDM_DEFAULT_MCAST_ADDR6;
-    int hopcount = 1;
-    struct addrinfo hints;
-    char portstr[6];
-    int gaierr;
-    struct addrinfo *ai, *firstai;
-
-    if ((i < argc) && (argv[i][0] != '-') && (argv[i][0] != '+')) {
-	address = argv[i++];
-	if ((i < argc) && (argv[i][0] != '-') && (argv[i][0] != '+')) {
-	    hopcount = strtol(argv[i++], NULL, 10);
-	    if ((hopcount < 1) || (hopcount > 255)) {
-		FatalError("Xserver: multicast hop count out of range: %d\n",
-		  hopcount);
-	    }
-	}
-    }
-
-    if (xdm_udp_port > 0 && xdm_udp_port < 65535) {
-	sprintf(portstr, "%d", xdm_udp_port);
-    } else {
-	FatalError("Xserver: port out of range: %d\n", xdm_udp_port);
-    }
-    bzero(&hints, sizeof(hints));
-    hints.ai_socktype = SOCK_DGRAM;
-
-    if ((gaierr = getaddrinfo(address, portstr, &hints, &firstai)) == 0) {
-	for (ai = firstai; ai != NULL; ai = ai->ai_next) {
-	    if (((ai->ai_family == AF_INET) && 
-	      	IN_MULTICAST(((struct sockaddr_in *) ai->ai_addr)
-							  ->sin_addr.s_addr))
-		|| ((ai->ai_family == AF_INET6) && 
-		  IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *) ai->ai_addr)
-							    ->sin6_addr)))
-		break;
-	}
-	if (ai == NULL) {
-	    FatalError ("Xserver: address not supported multicast type %s\n", 
-	      address);
-	} else {
-	    struct multicastinfo	*mcastinfo, *mcl;
-	    
-	    mcastinfo = malloc(sizeof(struct multicastinfo));
-	    mcastinfo->next = NULL;
-	    mcastinfo->ai = firstai;
-	    mcastinfo->hops = hopcount;
-
-	    if (mcastlist == NULL) {
-		mcastlist = mcastinfo;
-	    } else {
-		for (mcl = mcastlist; mcl->next != NULL; mcl = mcl->next) {
-		    /* Do nothing  - just find end of list */
-		}
-		mcl->next = mcastinfo;
-	    }
-	}
-    } else {
-	FatalError("Xserver: %s: %s\n", gai_strerror(gaierr), address);
-    }    
-    return i;
-}
-#endif
-
-#else
-static int xdmcp_non_empty; /* avoid complaint by ranlib */
-#endif /* XDMCP */