swaprep.c

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

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.

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


#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <X11/X.h>
#define NEED_REPLIES
#define NEED_EVENTS
#include <X11/Xproto.h>
#include "misc.h"
#include "dixstruct.h"
#include <X11/fonts/fontstruct.h>
#include "scrnintstr.h"
#include "swaprep.h"
#include "globals.h"

static void SwapFontInfo(xQueryFontReply *pr);

static void SwapCharInfo(xCharInfo *pInfo);

static void SwapFont(xQueryFontReply *pr, Bool hasGlyphs);

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

/**
 *
 * \param size size in bytes
 */
_X_EXPORT void
CopySwap32Write(ClientPtr pClient, int size, CARD32 *pbuf)
{
    int bufsize = size;
    CARD32 *pbufT;
    CARD32 *from, *to, *fromLast, *toLast;
    CARD32 tmpbuf[1];
    
    /* Allocate as big a buffer as we can... */
    while (!(pbufT = (CARD32 *) xalloc(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)
	xfree ((char *) pbufT);
}

/**
 *
 * \param size size in bytes
 */
void
CopySwap16Write(ClientPtr pClient, int size, short *pbuf)
{
    int bufsize = size;
    short *pbufT;
    short *from, *to, *fromLast, *toLast;
    short tmpbuf[2];
    
    /* Allocate as big a buffer as we can... */
    while (!(pbufT = (short *) xalloc(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)
	xfree ((char *) pbufT);
}


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

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

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

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

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

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


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

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

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

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


void
SQueryPointerReply(ClientPtr pClient, int size, xQueryPointerReply *pRep)
{
    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);
}

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

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

void
SwapTimeCoordWrite(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(ClientPtr pClient, int size, xGetMotionEventsReply *pRep)
{
    char n;

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

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

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

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

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

static void
SwapCharInfo(xCharInfo *pInfo)
{
    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(xQueryFontReply *pr)
{
    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);
}

static void
SwapFont(xQueryFontReply *pr, Bool hasGlyphs)
{
    unsigned	i;
    xCharInfo *	pxci;
    unsigned	nchars, nprops;
    char	*pby;
    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(ClientPtr pClient, int size, xQueryFontReply *pRep)
{
    SwapFont(pRep, TRUE);
    (void)WriteToClient(pClient, size, (char *) pRep);
}

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

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

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

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

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

void
SGetImageReply(ClientPtr pClient, int size, xGetImageReply *pRep)
{
    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(ClientPtr pClient, int size,
                             xListInstalledColormapsReply *pRep)
{
    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;
{
    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(ClientPtr pClient, int size, xAllocNamedColorReply *pRep)
{
    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(ClientPtr pClient, int size, xAllocColorCellsReply *pRep)
{
    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(ClientPtr pClient, int size, xAllocColorPlanesReply *pRep)
{
    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);
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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



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

static void
SwapConnSetup(xConnSetup *pConnSetup, xConnSetup *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;
}

static void
SwapWinRoot(xWindowRoot *pRoot, xWindowRoot *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;
}

static void
SwapVisual(xVisualType *pVis, xVisualType *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);
}

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

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

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

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