/* $XFree86: xc/programs/Xserver/dix/swaprep.c,v 3.7 2001/12/14 19:59:33 dawes Exp $ */
/************************************************************

Copyright 1987, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.


Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

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 Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

********************************************************/

/* $Xorg: swaprep.c,v 1.4 2001/02/09 02:04:41 xorgcvs Exp $ */

#include "X.h"
#define NEED_REPLIES
#define NEED_EVENTS
#include "Xproto.h"
#include "misc.h"
#include "dixstruct.h"
#include "fontstruct.h"
#include "scrnintstr.h"
#include "swaprep.h"
#include "globals.h"

static void SwapFontInfo(
#if NeedFunctionPrototypes
    xQueryFontReply * /* pr */
#endif
);

#ifndef LBX
static void SwapCharInfo(
#if NeedFunctionPrototypes
    xCharInfo * /* pInfo */
#endif
    );

static void SwapFont(
#if NeedFunctionPrototypes
    xQueryFontReply * /* pr */,
    Bool /* hasGlyphs */
#endif
    );
#endif

/* Thanks to Jack Palevich for testing and subsequently rewriting all this */
void
Swap32Write(pClient, size, pbuf)
    ClientPtr	pClient;
    int		size;  /* in bytes */
    register CARD32 *pbuf;
{
    register int i;
    register char n;

    size >>= 2;
    for(i = 0; i < size; i++)
    /* brackets are mandatory here, because "swapl" macro expands
       to several statements */
    {   
	swapl(&pbuf[i], n);
    }
    (void)WriteToClient(pClient, size << 2, (char *) pbuf);
}

void
CopySwap32Write(pClient, size, pbuf)
    ClientPtr	pClient;
    int		size;   /* in bytes */
    CARD32	*pbuf;
{
    int bufsize = size;
    CARD32 *pbufT;
    register CARD32 *from, *to, *fromLast, *toLast;
    CARD32 tmpbuf[1];
    
    /* Allocate as big a buffer as we can... */
    while (!(pbufT = (CARD32 *) ALLOCATE_LOCAL(bufsize)))
    {
        bufsize >>= 1;
	if (bufsize == 4)
	{
	    pbufT = tmpbuf;
	    break;
	}
    }
    
    /* convert lengths from # of bytes to # of longs */
    size >>= 2;
    bufsize >>= 2;

    from = pbuf;
    fromLast = from + size;
    while (from < fromLast) {
	int nbytes;
        to = pbufT;
        toLast = to + min (bufsize, fromLast - from);
        nbytes = (toLast - to) << 2;
        while (to < toLast) {
            /* can't write "cpswapl(*from++, *to++)" because cpswapl is a macro
	       that evaulates its args more than once */
	    cpswapl(*from, *to);
            from++;
            to++;
	    }
	(void)WriteToClient (pClient, nbytes, (char *) pbufT);
	}

    if (pbufT != tmpbuf)
	DEALLOCATE_LOCAL ((char *) pbufT);
}

void
CopySwap16Write(pClient, size, pbuf)
    ClientPtr	pClient;
    int		size;   /* in bytes */
    short	*pbuf;
{
    int bufsize = size;
    short *pbufT;
    register short *from, *to, *fromLast, *toLast;
    short tmpbuf[2];
    
    /* Allocate as big a buffer as we can... */
    while (!(pbufT = (short *) ALLOCATE_LOCAL(bufsize)))
    {
        bufsize >>= 1;
	if (bufsize == 4)
	{
	    pbufT = tmpbuf;
	    break;
	}
    }
    
    /* convert lengths from # of bytes to # of shorts */
    size >>= 1;
    bufsize >>= 1;

    from = pbuf;
    fromLast = from + size;
    while (from < fromLast) {
	int nbytes;
        to = pbufT;
        toLast = to + min (bufsize, fromLast - from);
        nbytes = (toLast - to) << 1;
        while (to < toLast) {
            /* can't write "cpswaps(*from++, *to++)" because cpswaps is a macro
	       that evaulates its args more than once */
	    cpswaps(*from, *to);
            from++;
            to++;
	    }
	(void)WriteToClient (pClient, nbytes, (char *) pbufT);
	}

    if (pbufT != tmpbuf)
	DEALLOCATE_LOCAL ((char *) pbufT);
}


/* Extra-small reply */
void
SGenericReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGenericReply		*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

/* Extra-large reply */
void
SGetWindowAttributesReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetWindowAttributesReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->visualID, n);
    swaps(&pRep->class, n);
    swapl(&pRep->backingBitPlanes, n);
    swapl(&pRep->backingPixel, n);
    swapl(&pRep->colormap, n);
    swapl(&pRep->allEventMasks, n);
    swapl(&pRep->yourEventMask, n);
    swaps(&pRep->doNotPropagateMask, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetGeometryReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xGetGeometryReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->root, n);
    swaps(&pRep->x, n);
    swaps(&pRep->y, n);
    swaps(&pRep->width, n);
    swaps(&pRep->height, n);
    swaps(&pRep->borderWidth, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SQueryTreeReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xQueryTreeReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->root, n);
    swapl(&pRep->parent, n);
    swaps(&pRep->nChildren, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SInternAtomReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xInternAtomReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->atom, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetAtomNameReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetAtomNameReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nameLength, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}


void
SGetPropertyReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetPropertyReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->propertyType, n);
    swapl(&pRep->bytesAfter, n);
    swapl(&pRep->nItems, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SListPropertiesReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xListPropertiesReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nProperties, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetSelectionOwnerReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetSelectionOwnerReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->owner, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}


void
SQueryPointerReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xQueryPointerReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->root, n);
    swapl(&pRep->child, n);
    swaps(&pRep->rootX, n);
    swaps(&pRep->rootY, n);
    swaps(&pRep->winX, n);
    swaps(&pRep->winY, n);
    swaps(&pRep->mask, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SwapTimecoord(pCoord)
    xTimecoord *pCoord;
{
    register char n;

    swapl(&pCoord->time, n);
    swaps(&pCoord->x, n);
    swaps(&pCoord->y, n);
}

void
SwapTimeCoordWrite(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xTimecoord			*pRep;
{
    int	i, n;
    xTimecoord			*pRepT;

    n = size / sizeof(xTimecoord);
    pRepT = pRep;
    for(i = 0; i < n; i++)
    {
	SwapTimecoord(pRepT);
	pRepT++;
    }
    (void)WriteToClient(pClient, size, (char *) pRep);

}
void
SGetMotionEventsReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetMotionEventsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->nEvents, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
STranslateCoordsReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xTranslateCoordsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->child, n);
    swaps(&pRep->dstX, n);
    swaps(&pRep->dstY, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetInputFocusReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xGetInputFocusReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->focus, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

/* extra long reply */
void
SQueryKeymapReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xQueryKeymapReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

#ifndef LBX
static
#endif
void
SwapCharInfo(pInfo)
    xCharInfo	*pInfo;
{
    register char n;

    swaps(&pInfo->leftSideBearing, n);
    swaps(&pInfo->rightSideBearing, n);
    swaps(&pInfo->characterWidth, n);
    swaps(&pInfo->ascent, n);
    swaps(&pInfo->descent, n);
    swaps(&pInfo->attributes, n);
}

static void
SwapFontInfo(pr)
    xQueryFontReply *pr;
{
    register char		n;

    swaps(&pr->minCharOrByte2, n);
    swaps(&pr->maxCharOrByte2, n);
    swaps(&pr->defaultChar, n);
    swaps(&pr->nFontProps, n);
    swaps(&pr->fontAscent, n);
    swaps(&pr->fontDescent, n);
    SwapCharInfo( &pr->minBounds);
    SwapCharInfo( &pr->maxBounds);
    swapl(&pr->nCharInfos, n);
}

#ifndef LBX
static
#endif
void
SwapFont( pr, hasGlyphs)
    xQueryFontReply *	pr;
    Bool hasGlyphs;
{
    unsigned	i;
    xCharInfo *	pxci;
    unsigned	nchars, nprops;
    char	*pby;
    register char n;

    swaps(&pr->sequenceNumber, n);
    swapl(&pr->length, n);
    nchars = pr->nCharInfos;
    nprops = pr->nFontProps;
    SwapFontInfo(pr);
    pby = (char *) &pr[1];
    /* Font properties are an atom and either an int32 or a CARD32, so
     * they are always 2 4 byte values */
    for(i = 0; i < nprops; i++)
    {
	swapl(pby, n);
	pby += 4;
	swapl(pby, n);
	pby += 4;
    }
    if (hasGlyphs)
    {
	pxci = (xCharInfo *)pby;
	for(i = 0; i< nchars; i++, pxci++)
	    SwapCharInfo(pxci);
    }
}

void
SQueryFontReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xQueryFontReply	*pRep;
{
    SwapFont(pRep, TRUE);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SQueryTextExtentsReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xQueryTextExtentsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->fontAscent, n);
    swaps(&pRep->fontDescent, n);
    swaps(&pRep->overallAscent, n);
    swaps(&pRep->overallDescent, n);
    swapl(&pRep->overallWidth, n);
    swapl(&pRep->overallLeft, n);
    swapl(&pRep->overallRight, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SListFontsReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xListFontsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nFonts, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SListFontsWithInfoReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xListFontsWithInfoReply	*pRep;
{
    SwapFont((xQueryFontReply *)pRep, FALSE);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetFontPathReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xGetFontPathReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nPaths, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetImageReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xGetImageReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->visual, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
    /* Fortunately, image doesn't need swapping */
}

void
SListInstalledColormapsReply(pClient, size, pRep)
    ClientPtr				pClient;
    int					size;
    xListInstalledColormapsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nColormaps, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SAllocColorReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xAllocColorReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->red, n);
    swaps(&pRep->green, n);
    swaps(&pRep->blue, n);
    swapl(&pRep->pixel, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SAllocNamedColorReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xAllocNamedColorReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->pixel, n);
    swaps(&pRep->exactRed, n);
    swaps(&pRep->exactGreen, n);
    swaps(&pRep->exactBlue, n);
    swaps(&pRep->screenRed, n);
    swaps(&pRep->screenGreen, n);
    swaps(&pRep->screenBlue, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SAllocColorCellsReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xAllocColorCellsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nPixels, n);
    swaps(&pRep->nMasks, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}


void
SAllocColorPlanesReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xAllocColorPlanesReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nPixels, n);
    swapl(&pRep->redMask, n);
    swapl(&pRep->greenMask, n);
    swapl(&pRep->blueMask, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SwapRGB(prgb)
    xrgb	*prgb;
{
    register char n;

    swaps(&prgb->red, n);
    swaps(&prgb->green, n);
    swaps(&prgb->blue, n);
}

void
SQColorsExtend(pClient, size, prgb)
    ClientPtr	pClient;
    int		size;
    xrgb	*prgb;
{
    int		i, n;
    xrgb	*prgbT;

    n = size / sizeof(xrgb);
    prgbT = prgb;
    for(i = 0; i < n; i++)
    {
	SwapRGB(prgbT);
	prgbT++;
    }
    (void)WriteToClient(pClient, size, (char *) prgb);
}

void
SQueryColorsReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xQueryColorsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nColors, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SLookupColorReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xLookupColorReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->exactRed, n);
    swaps(&pRep->exactGreen, n);
    swaps(&pRep->exactBlue, n);
    swaps(&pRep->screenRed, n);
    swaps(&pRep->screenGreen, n);
    swaps(&pRep->screenBlue, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SQueryBestSizeReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xQueryBestSizeReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->width, n);
    swaps(&pRep->height, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SListExtensionsReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xListExtensionsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetKeyboardMappingReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetKeyboardMappingReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetPointerMappingReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetPointerMappingReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetModifierMappingReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetModifierMappingReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetKeyboardControlReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetKeyboardControlReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swapl(&pRep->ledMask, n);
    swaps(&pRep->bellPitch, n);
    swaps(&pRep->bellDuration, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetPointerControlReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetPointerControlReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->accelNumerator, n);
    swaps(&pRep->accelDenominator, n);
    swaps(&pRep->threshold, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SGetScreenSaverReply(pClient, size, pRep)
    ClientPtr			pClient;
    int				size;
    xGetScreenSaverReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swaps(&pRep->timeout, n);
    swaps(&pRep->interval, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

void
SLHostsExtend(pClient, size, buf)
    ClientPtr		pClient;
    int			size;
    char		*buf;
{
    char *bufT = buf;
    char *endbuf = buf + size;
    while (bufT < endbuf) {
	xHostEntry *host = (xHostEntry *) bufT;
	int len = host->length;
        register char n;
	swaps (&host->length, n);
	bufT += sizeof (xHostEntry) + (((len + 3) >> 2) << 2);
	}
    (void)WriteToClient (pClient, size, buf);
}

void
SListHostsReply(pClient, size, pRep)
    ClientPtr		pClient;
    int			size;
    xListHostsReply	*pRep;
{
    register char n;

    swaps(&pRep->sequenceNumber, n);
    swapl(&pRep->length, n);
    swaps(&pRep->nHosts, n);
    (void)WriteToClient(pClient, size, (char *) pRep);
}



void
SErrorEvent(from, to)
    xError	*from, *to;
{
    to->type = X_Error;
    to->errorCode = from->errorCode;
    cpswaps(from->sequenceNumber, to->sequenceNumber);
    cpswapl(from->resourceID, to->resourceID);
    cpswaps(from->minorCode, to->minorCode);
    to->majorCode = from->majorCode;
}

void
SKeyButtonPtrEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.keyButtonPointer.time,
        to->u.keyButtonPointer.time);
    cpswapl(from->u.keyButtonPointer.root,
        to->u.keyButtonPointer.root);
    cpswapl(from->u.keyButtonPointer.event,
        to->u.keyButtonPointer.event);
    cpswapl(from->u.keyButtonPointer.child,
        to->u.keyButtonPointer.child);
    cpswaps(from->u.keyButtonPointer.rootX,
        to->u.keyButtonPointer.rootX);
    cpswaps(from->u.keyButtonPointer.rootY,
	to->u.keyButtonPointer.rootY);
    cpswaps(from->u.keyButtonPointer.eventX,
        to->u.keyButtonPointer.eventX);
    cpswaps(from->u.keyButtonPointer.eventY,
        to->u.keyButtonPointer.eventY);
    cpswaps(from->u.keyButtonPointer.state,
        to->u.keyButtonPointer.state);
    to->u.keyButtonPointer.sameScreen = 
	from->u.keyButtonPointer.sameScreen;
}

void
SEnterLeaveEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.enterLeave.time, to->u.enterLeave.time);
    cpswapl(from->u.enterLeave.root, to->u.enterLeave.root);
    cpswapl(from->u.enterLeave.event, to->u.enterLeave.event);
    cpswapl(from->u.enterLeave.child, to->u.enterLeave.child);
    cpswaps(from->u.enterLeave.rootX, to->u.enterLeave.rootX);
    cpswaps(from->u.enterLeave.rootY, to->u.enterLeave.rootY);
    cpswaps(from->u.enterLeave.eventX, to->u.enterLeave.eventX);
    cpswaps(from->u.enterLeave.eventY, to->u.enterLeave.eventY);
    cpswaps(from->u.enterLeave.state, to->u.enterLeave.state);
    to->u.enterLeave.mode = from->u.enterLeave.mode;
    to->u.enterLeave.flags = from->u.enterLeave.flags;
}

void
SFocusEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.focus.window, to->u.focus.window);
    to->u.focus.mode = from->u.focus.mode;
}

void
SExposeEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.expose.window, to->u.expose.window);
    cpswaps(from->u.expose.x, to->u.expose.x);
    cpswaps(from->u.expose.y, to->u.expose.y);
    cpswaps(from->u.expose.width, to->u.expose.width);
    cpswaps(from->u.expose.height, to->u.expose.height);
    cpswaps(from->u.expose.count, to->u.expose.count);
}

void
SGraphicsExposureEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.graphicsExposure.drawable,
        to->u.graphicsExposure.drawable);
    cpswaps(from->u.graphicsExposure.x, 
	to->u.graphicsExposure.x);
    cpswaps(from->u.graphicsExposure.y, 
	to->u.graphicsExposure.y);
    cpswaps(from->u.graphicsExposure.width, 
	to->u.graphicsExposure.width);
    cpswaps(from->u.graphicsExposure.height, 
	to->u.graphicsExposure.height);
    cpswaps(from->u.graphicsExposure.minorEvent,
        to->u.graphicsExposure.minorEvent);
    cpswaps(from->u.graphicsExposure.count,
	to->u.graphicsExposure.count);
    to->u.graphicsExposure.majorEvent = 
    	from->u.graphicsExposure.majorEvent;
}

void
SNoExposureEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.noExposure.drawable, to->u.noExposure.drawable);
    cpswaps(from->u.noExposure.minorEvent, to->u.noExposure.minorEvent);
    to->u.noExposure.majorEvent = from->u.noExposure.majorEvent;
}

void
SVisibilityEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.visibility.window, to->u.visibility.window);
    to->u.visibility.state = from->u.visibility.state;
}

void
SCreateNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.createNotify.window, to->u.createNotify.window);
    cpswapl(from->u.createNotify.parent, to->u.createNotify.parent);
    cpswaps(from->u.createNotify.x, to->u.createNotify.x);
    cpswaps(from->u.createNotify.y, to->u.createNotify.y);
    cpswaps(from->u.createNotify.width, to->u.createNotify.width);
    cpswaps(from->u.createNotify.height, to->u.createNotify.height);
    cpswaps(from->u.createNotify.borderWidth,
        to->u.createNotify.borderWidth);
    to->u.createNotify.override = from->u.createNotify.override;
}

void
SDestroyNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.destroyNotify.event, to->u.destroyNotify.event);
    cpswapl(from->u.destroyNotify.window, to->u.destroyNotify.window);
}

void
SUnmapNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.unmapNotify.event, to->u.unmapNotify.event);
    cpswapl(from->u.unmapNotify.window, to->u.unmapNotify.window);
    to->u.unmapNotify.fromConfigure = from->u.unmapNotify.fromConfigure;
}

void
SMapNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.mapNotify.event, to->u.mapNotify.event);
    cpswapl(from->u.mapNotify.window, to->u.mapNotify.window);
    to->u.mapNotify.override = from->u.mapNotify.override;
}

void
SMapRequestEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.mapRequest.parent, to->u.mapRequest.parent);
    cpswapl(from->u.mapRequest.window, to->u.mapRequest.window);
}

void
SReparentEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.reparent.event, to->u.reparent.event);
    cpswapl(from->u.reparent.window, to->u.reparent.window);
    cpswapl(from->u.reparent.parent, to->u.reparent.parent);
    cpswaps(from->u.reparent.x, to->u.reparent.x);
    cpswaps(from->u.reparent.y, to->u.reparent.y);
    to->u.reparent.override = from->u.reparent.override;
}

void
SConfigureNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.configureNotify.event,
        to->u.configureNotify.event);
    cpswapl(from->u.configureNotify.window,
        to->u.configureNotify.window);
    cpswapl(from->u.configureNotify.aboveSibling,
        to->u.configureNotify.aboveSibling);
    cpswaps(from->u.configureNotify.x, to->u.configureNotify.x);
    cpswaps(from->u.configureNotify.y, to->u.configureNotify.y);
    cpswaps(from->u.configureNotify.width, to->u.configureNotify.width);
    cpswaps(from->u.configureNotify.height,
        to->u.configureNotify.height);
    cpswaps(from->u.configureNotify.borderWidth,
        to->u.configureNotify.borderWidth);
    to->u.configureNotify.override = from->u.configureNotify.override;
}

void
SConfigureRequestEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;  /* actually stack-mode */
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.configureRequest.parent,
        to->u.configureRequest.parent);
    cpswapl(from->u.configureRequest.window,
        to->u.configureRequest.window);
    cpswapl(from->u.configureRequest.sibling,
        to->u.configureRequest.sibling);
    cpswaps(from->u.configureRequest.x, to->u.configureRequest.x);
    cpswaps(from->u.configureRequest.y, to->u.configureRequest.y);
    cpswaps(from->u.configureRequest.width,
        to->u.configureRequest.width);
    cpswaps(from->u.configureRequest.height,
        to->u.configureRequest.height);
    cpswaps(from->u.configureRequest.borderWidth,
        to->u.configureRequest.borderWidth);
    cpswaps(from->u.configureRequest.valueMask,
        to->u.configureRequest.valueMask);
}


void
SGravityEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.gravity.event, to->u.gravity.event);
    cpswapl(from->u.gravity.window, to->u.gravity.window);
    cpswaps(from->u.gravity.x, to->u.gravity.x);
    cpswaps(from->u.gravity.y, to->u.gravity.y);
}

void
SResizeRequestEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.resizeRequest.window, to->u.resizeRequest.window);
    cpswaps(from->u.resizeRequest.width, to->u.resizeRequest.width);
    cpswaps(from->u.resizeRequest.height, to->u.resizeRequest.height);
}

void
SCirculateEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.circulate.event, to->u.circulate.event);
    cpswapl(from->u.circulate.window, to->u.circulate.window);
    cpswapl(from->u.circulate.parent, to->u.circulate.parent);
    to->u.circulate.place = from->u.circulate.place;
}

void
SPropertyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.property.window, to->u.property.window);
    cpswapl(from->u.property.atom, to->u.property.atom);
    cpswapl(from->u.property.time, to->u.property.time);
    to->u.property.state = from->u.property.state;
}

void
SSelectionClearEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.selectionClear.time, to->u.selectionClear.time);
    cpswapl(from->u.selectionClear.window, to->u.selectionClear.window);
    cpswapl(from->u.selectionClear.atom, to->u.selectionClear.atom);
}

void
SSelectionRequestEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.selectionRequest.time, to->u.selectionRequest.time);
    cpswapl(from->u.selectionRequest.owner,
        to->u.selectionRequest.owner);
    cpswapl(from->u.selectionRequest.requestor,
	to->u.selectionRequest.requestor);
    cpswapl(from->u.selectionRequest.selection,
	to->u.selectionRequest.selection);
    cpswapl(from->u.selectionRequest.target,
        to->u.selectionRequest.target);
    cpswapl(from->u.selectionRequest.property,
	to->u.selectionRequest.property);
}

void
SSelectionNotifyEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.selectionNotify.time, to->u.selectionNotify.time);
    cpswapl(from->u.selectionNotify.requestor,
	to->u.selectionNotify.requestor);
    cpswapl(from->u.selectionNotify.selection,
	to->u.selectionNotify.selection);
    cpswapl(from->u.selectionNotify.target,
	to->u.selectionNotify.target);
    cpswapl(from->u.selectionNotify.property,
        to->u.selectionNotify.property);
}

void
SColormapEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.colormap.window, to->u.colormap.window);
    cpswapl(from->u.colormap.colormap, to->u.colormap.colormap);
    to->u.colormap.new = from->u.colormap.new;
    to->u.colormap.state = from->u.colormap.state;
}

void
SMappingEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    to->u.mappingNotify.request = from->u.mappingNotify.request;
    to->u.mappingNotify.firstKeyCode =
	from->u.mappingNotify.firstKeyCode;
    to->u.mappingNotify.count = from->u.mappingNotify.count;
}

void
SClientMessageEvent(from, to)
    xEvent	*from, *to;
{
    to->u.u.type = from->u.u.type;
    to->u.u.detail = from->u.u.detail;  /* actually format */
    cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
    cpswapl(from->u.clientMessage.window, to->u.clientMessage.window);
    cpswapl(from->u.clientMessage.u.l.type, 
	    to->u.clientMessage.u.l.type);
    switch (from->u.u.detail) {
       case 8:
          memmove(to->u.clientMessage.u.b.bytes, 
		  from->u.clientMessage.u.b.bytes,20);
	  break;
       case 16:
	  cpswaps(from->u.clientMessage.u.s.shorts0,
	     to->u.clientMessage.u.s.shorts0);
	  cpswaps(from->u.clientMessage.u.s.shorts1,
	     to->u.clientMessage.u.s.shorts1);
	  cpswaps(from->u.clientMessage.u.s.shorts2,
	     to->u.clientMessage.u.s.shorts2);
	  cpswaps(from->u.clientMessage.u.s.shorts3,
	     to->u.clientMessage.u.s.shorts3);
	  cpswaps(from->u.clientMessage.u.s.shorts4,
	     to->u.clientMessage.u.s.shorts4);
	  cpswaps(from->u.clientMessage.u.s.shorts5,
	     to->u.clientMessage.u.s.shorts5);
	  cpswaps(from->u.clientMessage.u.s.shorts6,
	     to->u.clientMessage.u.s.shorts6);
	  cpswaps(from->u.clientMessage.u.s.shorts7,
	     to->u.clientMessage.u.s.shorts7);
	  cpswaps(from->u.clientMessage.u.s.shorts8,
	     to->u.clientMessage.u.s.shorts8);
	  cpswaps(from->u.clientMessage.u.s.shorts9,
	     to->u.clientMessage.u.s.shorts9);
	  break;
       case 32:
	  cpswapl(from->u.clientMessage.u.l.longs0,
	     to->u.clientMessage.u.l.longs0);
	  cpswapl(from->u.clientMessage.u.l.longs1,
	     to->u.clientMessage.u.l.longs1);
	  cpswapl(from->u.clientMessage.u.l.longs2,
	     to->u.clientMessage.u.l.longs2);
	  cpswapl(from->u.clientMessage.u.l.longs3,
	     to->u.clientMessage.u.l.longs3);
	  cpswapl(from->u.clientMessage.u.l.longs4,
	     to->u.clientMessage.u.l.longs4);
	  break;
       }
}

void
SKeymapNotifyEvent(from, to)
    xEvent	*from, *to;
{
    /* Keymap notify events are special; they have no
       sequence number field, and contain entirely 8-bit data */
    *to = *from;
}

void
SwapConnSetupInfo(
    char 	*pInfo,
    char 	*pInfoT
)
{
    int		i, j, k;
    xConnSetup	*pConnSetup = (xConnSetup *)pInfo;
    xDepth	*depth;
    xWindowRoot *root;

    SwapConnSetup(pConnSetup, (xConnSetup *)pInfoT);
    pInfo += sizeof(xConnSetup);
    pInfoT += sizeof(xConnSetup);

    /* Copy the vendor string */
    i = (pConnSetup->nbytesVendor + 3) & ~3;
    memcpy(pInfoT, pInfo, i);
    pInfo += i;
    pInfoT += i;

    /* The Pixmap formats don't need to be swapped, just copied. */
    i = sizeof(xPixmapFormat) * pConnSetup->numFormats;
    memcpy(pInfoT, pInfo, i);
    pInfo += i;
    pInfoT += i;

    for(i = 0; i < pConnSetup->numRoots; i++)
    {
	root = (xWindowRoot*)pInfo;
	SwapWinRoot(root, (xWindowRoot *)pInfoT);
	pInfo += sizeof(xWindowRoot);
	pInfoT += sizeof(xWindowRoot);

	for(j = 0; j < root->nDepths; j++)
	{
	    depth = (xDepth*)pInfo;
            ((xDepth *)pInfoT)->depth = depth->depth;
	    cpswaps(depth->nVisuals, ((xDepth *)pInfoT)->nVisuals);
	    pInfo += sizeof(xDepth);
	    pInfoT += sizeof(xDepth);
	    for(k = 0; k < depth->nVisuals; k++)
	    {
		SwapVisual((xVisualType *)pInfo, (xVisualType *)pInfoT);
		pInfo += sizeof(xVisualType);
		pInfoT += sizeof(xVisualType);
	    }
	}
    }
}


void
WriteSConnectionInfo(pClient, size, pInfo)
    ClientPtr		pClient;
    unsigned long	size;
    char 		*pInfo;
{
    char	*pInfoTBase;

    pInfoTBase = (char *) ALLOCATE_LOCAL(size);
    if (!pInfoTBase)
    {
	pClient->noClientException = -1;
	return;
    }
    SwapConnSetupInfo(pInfo, pInfoTBase);
    (void)WriteToClient(pClient, (int)size, (char *) pInfoTBase);
    DEALLOCATE_LOCAL(pInfoTBase);
}

void
SwapConnSetup(pConnSetup, pConnSetupT)
    xConnSetup 	*pConnSetup, *pConnSetupT;
{
    cpswapl(pConnSetup->release, pConnSetupT->release);
    cpswapl(pConnSetup->ridBase, pConnSetupT->ridBase);
    cpswapl(pConnSetup->ridMask, pConnSetupT->ridMask);
    cpswapl(pConnSetup->motionBufferSize, pConnSetupT->motionBufferSize);
    cpswaps(pConnSetup->nbytesVendor, pConnSetupT->nbytesVendor);
    cpswaps(pConnSetup->maxRequestSize, pConnSetupT->maxRequestSize);
    pConnSetupT->minKeyCode = pConnSetup->minKeyCode;
    pConnSetupT->maxKeyCode = pConnSetup->maxKeyCode;
    pConnSetupT->numRoots = pConnSetup->numRoots;
    pConnSetupT->numFormats = pConnSetup->numFormats;
    pConnSetupT->imageByteOrder = pConnSetup->imageByteOrder;
    pConnSetupT->bitmapBitOrder = pConnSetup->bitmapBitOrder;
    pConnSetupT->bitmapScanlineUnit = pConnSetup->bitmapScanlineUnit;
    pConnSetupT->bitmapScanlinePad = pConnSetup->bitmapScanlinePad;
}

void
SwapWinRoot(pRoot, pRootT)
    xWindowRoot	*pRoot, *pRootT;
{
    cpswapl(pRoot->windowId, pRootT->windowId);
    cpswapl(pRoot->defaultColormap, pRootT->defaultColormap);
    cpswapl(pRoot->whitePixel, pRootT->whitePixel);
    cpswapl(pRoot->blackPixel, pRootT->blackPixel);
    cpswapl(pRoot->currentInputMask, pRootT->currentInputMask);
    cpswaps(pRoot->pixWidth, pRootT->pixWidth);
    cpswaps(pRoot->pixHeight, pRootT->pixHeight);
    cpswaps(pRoot->mmWidth, pRootT->mmWidth);
    cpswaps(pRoot->mmHeight, pRootT->mmHeight);
    cpswaps(pRoot->minInstalledMaps, pRootT->minInstalledMaps);
    cpswaps(pRoot->maxInstalledMaps, pRootT->maxInstalledMaps);
    cpswapl(pRoot->rootVisualID, pRootT->rootVisualID);
    pRootT->backingStore = pRoot->backingStore;
    pRootT->saveUnders = pRoot->saveUnders;
    pRootT->rootDepth = pRoot->rootDepth;
    pRootT->nDepths = pRoot->nDepths;
}

void
SwapVisual(pVis, pVisT)
    xVisualType 	*pVis, *pVisT;
{
    cpswapl(pVis->visualID, pVisT->visualID);
    pVisT->class = pVis->class;
    pVisT->bitsPerRGB = pVis->bitsPerRGB;
    cpswaps(pVis->colormapEntries, pVisT->colormapEntries);
    cpswapl(pVis->redMask, pVisT->redMask);
    cpswapl(pVis->greenMask, pVisT->greenMask);
    cpswapl(pVis->blueMask, pVisT->blueMask);
}

void
SwapConnSetupPrefix(pcspFrom, pcspTo)
    xConnSetupPrefix	*pcspFrom;
    xConnSetupPrefix	*pcspTo;
{
    pcspTo->success = pcspFrom->success;
    pcspTo->lengthReason = pcspFrom->lengthReason;
    cpswaps(pcspFrom->majorVersion, pcspTo->majorVersion);
    cpswaps(pcspFrom->minorVersion, pcspTo->minorVersion);
    cpswaps(pcspFrom->length, pcspTo->length);
}

void
WriteSConnSetupPrefix(pClient, pcsp)
    ClientPtr		pClient;
    xConnSetupPrefix	*pcsp;
{
    xConnSetupPrefix	cspT;

    SwapConnSetupPrefix(pcsp, &cspT);
    (void)WriteToClient(pClient, sizeof(cspT), (char *) &cspT);
}