Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 869 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/lbx/lbxdix.c b/nx-X11/programs/Xserver/lbx/lbxdix.c
new file mode 100644
index 000000000..e2a1a7adc
--- /dev/null
+++ b/nx-X11/programs/Xserver/lbx/lbxdix.c
@@ -0,0 +1,869 @@
+/* $Xorg: lbxdix.c,v 1.4 2001/02/09 02:05:16 xorgcvs Exp $ */
+/*
+
+Copyright 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 1993 Network Computing Devices, Inc.
+ *
+ * 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, and that the name Network Computing Devices, Inc. not be
+ * used in advertising or publicity pertaining to distribution of this
+ * software without specific, written prior permission.
+ *
+ * THIS SOFTWARE IS PROVIDED `AS-IS'.  NETWORK COMPUTING DEVICES, INC.,
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT
+ * LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NONINFRINGEMENT.  IN NO EVENT SHALL NETWORK
+ * COMPUTING DEVICES, INC., BE LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING
+ * SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF USE, DATA,
+ * OR PROFITS, EVEN IF ADVISED OF THE POSSIBILITY THEREOF, AND REGARDLESS OF
+ * WHETHER IN AN ACTION IN CONTRACT, TORT OR NEGLIGENCE, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+/* $XFree86: xc/programs/Xserver/lbx/lbxdix.c,v 1.7 2001/08/23 14:46:57 alanh Exp $ */
+
+/* various bits of DIX-level mangling */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <sys/types.h>
+#include <stdio.h>
+#define NEED_REPLIES
+#define NEED_EVENTS
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "misc.h"
+#include "os.h"
+#include "dixstruct.h"
+#include "resource.h"
+#include "inputstr.h"
+#include "servermd.h"
+#include "dixfontstr.h"
+#include "gcstruct.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "propertyst.h"
+#define _XLBX_SERVER_
+#include <X11/extensions/lbxstr.h>
+#include "lbxserve.h"
+#include "lbxtags.h"
+#include "lbxdata.h"
+#include <X11/Xfuncproto.h>
+#ifdef XAPPGROUP
+#include <X11/extensions/Xagsrv.h>
+#endif
+#include "swaprep.h"
+
+int         lbx_font_private = -1;
+
+void
+LbxDixInit(void)
+{
+    TagInit();
+    lbx_font_private = AllocateFontPrivateIndex();
+}
+
+/* ARGSUSED */
+void
+LbxAllowMotion(ClientPtr       	client,
+	       int		num)
+{
+    LbxProxyPtr proxy = LbxProxy(client);
+    proxy->motion_allowed_events += num;
+}
+
+extern xConnSetupPrefix connSetupPrefix;
+extern char *ConnectionInfo;
+extern int  connBlockScreenStart;
+
+int
+LbxSendConnSetup(ClientPtr   client,
+		 char       *reason)
+{
+    int		dlength;
+    int         i, ndex, lim, wndex;
+    CARD32      dataBuf[16];
+    xLbxConnSetupPrefix csp;
+    NewClientInfoRec nci;
+    LbxProxyPtr proxy = LbxProxy(client);
+
+    if (reason) {
+	SendConnSetup(client, reason);
+	LbxForceOutput(proxy); /* expedient to avoid another state variable */
+	return (client->noClientException);
+    }
+
+    IncrementClientCount();
+
+    client->requestVector = client->swapped ? SwappedProcVector : ProcVector;
+    client->sequence = 0;
+    dataBuf[0] = client->clientAsMask;
+
+    csp.success = TRUE;
+    csp.majorVersion = connSetupPrefix.majorVersion;
+    csp.minorVersion = connSetupPrefix.minorVersion;
+    csp.tag = 0;
+#ifdef XAPPGROUP
+    if (!client->appgroup) {
+#endif
+    csp.changeType = 1; /* LbxNormalDeltas */
+    csp.length = 2 +			/* tag + resource-id-base */
+		 screenInfo.numScreens; /* input-mask per screen */
+    wndex = 0; ndex = 1; lim = screenInfo.numScreens;
+#ifdef XAPPGROUP
+    } else {
+	csp.changeType = 2; /* LbxAppGroupDeltas */
+	csp.length = 7 + /* tag, res-id-base, root, visual, colormap, b&w-pix */
+		     1 + screenInfo.numScreens - screenInfo.numVideoScreens;
+	XagGetDeltaInfo (client, &dataBuf[1]);
+	for (i = 0; i < MAXSCREENS; i++) {
+	    if ((CARD32) WindowTable[i]->drawable.id == dataBuf[1]) {
+		dataBuf[6] =  WindowTable[i]->eventMask | wOtherEventMasks(WindowTable[i]);
+		break;
+	    }
+	}
+	wndex = screenInfo.numVideoScreens;
+	ndex = 7;
+	lim = screenInfo.numScreens - screenInfo.numVideoScreens;
+    }
+#endif
+    for (i = 0; i < lim; i++, ndex++, wndex++) {
+	dataBuf[ndex] = 
+	    WindowTable[wndex]->eventMask | wOtherEventMasks(WindowTable[wndex]);
+    }
+    dlength = (csp.length - 1) << 2;
+
+    if (LbxProxyClient(proxy)->swapped) {
+	swaps(&csp.length, i);
+    }
+
+    if (client->swapped) {
+	LbxWriteSConnSetupPrefix(client, &csp);
+	SwapLongs(dataBuf, (1 + screenInfo.numScreens));
+	WriteToClient(client, dlength, (pointer) dataBuf);
+    } else {
+	WriteToClient(client, sizeof(xLbxConnSetupPrefix), (char *) &csp);
+	WriteToClient(client, dlength, (pointer) dataBuf);
+    }
+
+    LbxForceOutput(proxy); /* expedient to avoid another state variable */
+    client->clientState = ClientStateRunning;
+    if (ClientStateCallback) {
+	if (LbxProxyClient(proxy)->swapped != client->swapped) {
+	    swaps(&csp.length, i);
+	}
+	nci.client = client;
+	nci.prefix = (xConnSetupPrefix*) &csp;
+	nci.setup = (xConnSetup *) ConnectionInfo;
+	CallCallbacks(&ClientStateCallback, (pointer) &nci);
+    }
+
+    return client->noClientException;
+}
+
+static XID modifier_map_tag;
+
+int
+LbxGetModifierMapping(ClientPtr   client)
+{
+    TagData     td;
+    pointer     tagdata;
+    xLbxGetModifierMappingReply rep;
+    register KeyClassPtr keyc = inputInfo.keyboard->key;
+    int         dlength = keyc->maxKeysPerModifier << 3;
+    Bool        tag_known = FALSE,
+                send_data;
+    int         n;
+
+    if (!modifier_map_tag) {
+	tagdata = (pointer) keyc->modifierKeyMap;
+	TagSaveTag(LbxTagTypeModmap, dlength, tagdata, &modifier_map_tag);
+    } else {
+	td = TagGetTag(modifier_map_tag);
+	tagdata = td->tdata;
+	tag_known = TagProxyMarked(modifier_map_tag, LbxProxyID(client));
+    }
+    if (modifier_map_tag)
+	TagMarkProxy(modifier_map_tag, LbxProxyID(client));
+
+    send_data = (!modifier_map_tag || !tag_known);
+
+    rep.type = X_Reply;
+    rep.keyspermod = keyc->maxKeysPerModifier;
+    rep.sequenceNumber = client->sequence;
+    rep.tag = modifier_map_tag;
+    rep.pad0 = rep.pad1 = rep.pad2 = rep.pad3 = rep.pad4 = 0;
+
+    if (send_data)
+	rep.length = dlength >> 2;
+    else
+	rep.length = 0;
+
+    if (client->swapped) {
+	swaps(&rep.sequenceNumber, n);
+	swapl(&rep.length, n);
+	swapl(&rep.tag, n);
+    }
+    WriteToClient(client, sizeof(xLbxGetModifierMappingReply), (char *)&rep);
+
+    if (send_data)
+	WriteToClient(client, dlength, (char *) tagdata);
+
+    return client->noClientException;
+}
+
+void
+LbxFlushModifierMapTag(void)
+{
+
+    if (modifier_map_tag)
+	TagDeleteTag(modifier_map_tag);
+}
+
+static XID keyboard_map_tag;
+
+int
+LbxGetKeyboardMapping(ClientPtr   client)
+{
+    TagData     td;
+    pointer     tagdata;
+    xLbxGetKeyboardMappingReply rep;
+
+    REQUEST(xLbxGetKeyboardMappingReq);
+    KeySymsPtr  curKeySyms = &inputInfo.keyboard->key->curKeySyms;
+    int         dlength;
+    Bool        tag_known = FALSE,
+                send_data;
+    int         n;
+
+    REQUEST_SIZE_MATCH(xLbxGetKeyboardMappingReq);
+
+    if ((stuff->firstKeyCode < curKeySyms->minKeyCode) ||
+	    (stuff->firstKeyCode > curKeySyms->maxKeyCode)) {
+	client->errorValue = stuff->firstKeyCode;
+	return BadValue;
+    }
+    if (stuff->firstKeyCode + stuff->count > curKeySyms->maxKeyCode + 1) {
+	client->errorValue = stuff->count;
+	return BadValue;
+    }
+    rep.type = X_Reply;
+    rep.sequenceNumber = client->sequence;
+    rep.keysperkeycode = curKeySyms->mapWidth;
+    /* length is a count of 4 byte quantities and KeySyms are 4 bytes */
+
+    if (!keyboard_map_tag) {
+	tagdata = (pointer) &curKeySyms->map[(stuff->firstKeyCode -
+			     curKeySyms->minKeyCode) * curKeySyms->mapWidth];
+	dlength = (curKeySyms->mapWidth * stuff->count);
+	TagSaveTag(LbxTagTypeKeymap, dlength, tagdata, &keyboard_map_tag);
+    } else {
+	td = TagGetTag(keyboard_map_tag);
+	tagdata = td->tdata;
+	tag_known = TagProxyMarked(keyboard_map_tag, LbxProxyID(client));
+    }
+    if (keyboard_map_tag)
+	TagMarkProxy(keyboard_map_tag, LbxProxyID(client));
+
+    send_data = (!keyboard_map_tag || !tag_known);
+    rep.type = X_Reply;
+    rep.keysperkeycode = curKeySyms->mapWidth;
+    rep.sequenceNumber = client->sequence;
+    rep.tag = keyboard_map_tag;
+    rep.pad0 = rep.pad1 = rep.pad2 = rep.pad3 = rep.pad4 = 0;
+
+    if (send_data)
+	rep.length = (curKeySyms->mapWidth * stuff->count);
+    else
+	rep.length = 0;
+
+    if (client->swapped) {
+	swaps(&rep.sequenceNumber, n);
+	swapl(&rep.length, n);
+	swapl(&rep.tag, n);
+    }
+    WriteToClient(client, sizeof(xLbxGetKeyboardMappingReply), (char *)&rep);
+
+    if (send_data) {
+	client->pSwapReplyFunc = (ReplySwapPtr)CopySwap32Write;
+	WriteSwappedDataToClient(client,
+			curKeySyms->mapWidth * stuff->count * sizeof(KeySym),
+	    &curKeySyms->map[(stuff->firstKeyCode - curKeySyms->minKeyCode) *
+			     curKeySyms->mapWidth]);
+    }
+    return client->noClientException;
+}
+
+void
+LbxFlushKeyboardMapTag(void)
+{
+    if (keyboard_map_tag)
+	TagDeleteTag(keyboard_map_tag);
+}
+
+/* counts number of bits needed to hold value */
+static int
+_bitsize(int val)
+{
+    int         bits = 1;  /* always need one for sign bit */
+
+    if (val == 0)
+	return (bits);
+
+    if (val < 0) {
+	val = -val;
+    }
+    while (val) {
+	bits++;
+	val >>= 1;
+    }
+
+    return bits;
+
+}
+
+/*
+ * squashes the font (if possible), returning the new length and
+ * a pointer to the new data (which has been allocated).  if it can't
+ * squish, it just returns a 0 and the data is sent in raw form.
+ */
+int  _lbx_fi_junklen = sizeof(BYTE) * 2 + sizeof(CARD16) + sizeof(CARD32);
+
+static int
+squish_font_info(xQueryFontReply *qfr,
+		 int             rlen,
+		 xLbxFontInfo    **sqrep)
+{
+    int         len,
+                hlen;
+    xLbxFontInfo *new;
+    xCharInfo  *minb,
+               *maxb,
+		*ci,
+                bbox;
+    int         i;
+    char	*t;
+    xLbxCharInfo *chars;
+    int	num_chars;
+
+    num_chars = qfr->nCharInfos;
+
+    if (num_chars == 0)
+	return 0;
+
+    minb = &qfr->minBounds;
+    maxb = &qfr->maxBounds;
+    /*
+     * first do the quick check -- if the attribute fields aren't all the
+     * same, punt
+     */
+
+    if (minb->attributes != maxb->attributes)
+	return 0;
+
+#define	compute(field)	\
+    bbox.field = max(_bitsize(minb->field), _bitsize(maxb->field))
+
+    compute(characterWidth);
+    compute(leftSideBearing);
+    compute(rightSideBearing);
+    compute(ascent);
+    compute(descent);
+
+#undef compute
+
+    /* make sure it fits */
+    if (!((bbox.characterWidth <= LBX_WIDTH_BITS) &&
+	  (bbox.leftSideBearing <= LBX_LEFT_BITS) &&
+	  (bbox.rightSideBearing <= LBX_RIGHT_BITS) &&
+	  (bbox.ascent <= LBX_ASCENT_BITS) &&
+	  (bbox.descent <= LBX_DESCENT_BITS))) {
+	return 0;
+    }
+
+    hlen = sizeof(xLbxFontInfo) + qfr->nFontProps * sizeof(xFontProp);
+
+    len = hlen + (num_chars * sizeof(xLbxCharInfo));
+
+    new = (xLbxFontInfo *) xalloc(len);
+    if (!new)
+	return 0;
+
+    /* gross hack to avoid copying all the fields */
+    t = (char *) qfr;
+    t += _lbx_fi_junklen;
+
+    /* copy all but the char infos */
+    memcpy((char *) new, (char *) t, hlen);
+
+    t = (char *) new;
+    t += hlen;
+    chars = (xLbxCharInfo *) t;
+
+    t = (char *) qfr;
+    t += sizeof(xQueryFontReply) + qfr->nFontProps * sizeof(xFontProp);
+    ci = (xCharInfo *) t;
+
+    /* now copy & pack the charinfos */
+    for (i = 0; i < num_chars; i++, chars++, ci++) {
+	chars->metrics = 0;
+	chars->metrics |= (LBX_MASK_BITS(ci->characterWidth, LBX_WIDTH_BITS)
+			   << LBX_WIDTH_SHIFT);
+	chars->metrics |= (LBX_MASK_BITS(ci->leftSideBearing, LBX_LEFT_BITS)
+			   << LBX_LEFT_SHIFT);
+	chars->metrics |= (LBX_MASK_BITS(ci->rightSideBearing, LBX_RIGHT_BITS)
+			   << LBX_RIGHT_SHIFT);
+	chars->metrics |= (LBX_MASK_BITS(ci->ascent, LBX_ASCENT_BITS)
+			   << LBX_ASCENT_SHIFT);
+	chars->metrics |= (LBX_MASK_BITS(ci->descent, LBX_DESCENT_BITS)
+			   << LBX_DESCENT_SHIFT);
+    }
+
+    *sqrep = new;
+    return len;
+}
+
+int
+LbxQueryFont(ClientPtr   client)
+{
+    xQueryFontReply *reply;
+    xLbxQueryFontReply lbxrep;
+    FontPtr     pFont;
+    register GC *pGC;
+    Bool        send_data = FALSE;
+    Bool        free_data = FALSE;
+    int         rlength = 0;
+    FontTagInfoPtr ftip;
+    int         sqlen = 0;
+    xLbxFontInfo *sqrep,
+               *sreply = NULL;
+
+    REQUEST(xLbxQueryFontReq);
+
+    REQUEST_SIZE_MATCH(xLbxQueryFontReq);
+
+    client->errorValue = stuff->fid;	/* EITHER font or gc */
+    pFont = (FontPtr) SecurityLookupIDByType(client, stuff->fid, RT_FONT,
+					     SecurityReadAccess);
+    if (!pFont) {
+	/* can't use VERIFY_GC because it might return BadGC */
+	pGC = (GC *) SecurityLookupIDByType(client, stuff->fid, RT_GC,
+					    SecurityReadAccess);
+	if (!pGC || !pGC->font) {	/* catch a non-existent builtin font */
+	    client->errorValue = stuff->fid;
+	    return (BadFont);	/* procotol spec says only error is BadFont */
+	}
+	pFont = pGC->font;
+    }
+
+    /* get tag (if any) */
+    ftip = (FontTagInfoPtr) FontGetPrivate(pFont, lbx_font_private);
+
+    if (!ftip) {
+	xCharInfo  *pmax = FONTINKMAX(pFont);
+	xCharInfo  *pmin = FONTINKMIN(pFont);
+	int         nprotoxcistructs;
+
+	nprotoxcistructs = (
+			  pmax->rightSideBearing == pmin->rightSideBearing &&
+			    pmax->leftSideBearing == pmin->leftSideBearing &&
+			    pmax->descent == pmin->descent &&
+			    pmax->ascent == pmin->ascent &&
+			    pmax->characterWidth == pmin->characterWidth) ?
+	    0 : N2dChars(pFont);
+
+	rlength = sizeof(xQueryFontReply) +
+	    FONTINFONPROPS(FONTCHARSET(pFont)) * sizeof(xFontProp) +
+	    nprotoxcistructs * sizeof(xCharInfo);
+	reply = (xQueryFontReply *) xalloc(rlength);
+	if (!reply) {
+	    return (BadAlloc);
+	}
+	free_data = TRUE;
+	send_data = TRUE;
+	QueryFont(pFont, reply, nprotoxcistructs);
+
+	sqlen = squish_font_info(reply, rlength, &sqrep);
+	if (!sqlen) {		/* if it failed to squish, send it raw */
+	    char *t;
+
+	    lbxrep.compression = 0;
+
+	    sqlen = rlength - _lbx_fi_junklen;
+	    t = (char *) reply;
+	    sqrep = (xLbxFontInfo *) (t + _lbx_fi_junklen);
+	} else {
+	    lbxrep.compression = 1;
+	    xfree(reply);	/* no longer needed */
+	}
+    } else {			/* just get data from tag */
+	sqrep = ftip->fontinfo;
+	sqlen = ftip->size;
+	lbxrep.compression = ftip->compression;
+    }
+
+    if (!ftip) {
+	/* data allocation is done when font is first queried */
+	ftip = (FontTagInfoPtr) xalloc(sizeof(FontTagInfoRec));
+	if (ftip &&
+	    TagSaveTag(LbxTagTypeFont, sqlen, (pointer) ftip, &ftip->tid)) {
+	    FontSetPrivate(pFont, lbx_font_private, (pointer) ftip);
+	    ftip->pfont = pFont;
+	    ftip->size = sqlen;
+	    ftip->fontinfo = sqrep;
+	    ftip->compression = lbxrep.compression;
+	    free_data = FALSE;
+	} else {
+	    xfree(ftip);
+	}
+    }
+    if (ftip) {
+	if (!TagProxyMarked(ftip->tid, LbxProxyID(client)))
+	    send_data = TRUE;
+	TagMarkProxy(ftip->tid, LbxProxyID(client));
+	lbxrep.tag = ftip->tid;
+    } else {
+	lbxrep.tag = 0;
+	send_data = TRUE;
+    }
+
+    lbxrep.type = X_Reply;
+    lbxrep.sequenceNumber = client->sequence;
+    lbxrep.pad0 = lbxrep.pad1 = lbxrep.pad2 = lbxrep.pad3 = lbxrep.pad4 = 0;
+
+    if (send_data)
+	lbxrep.length = sqlen >> 2;
+    else
+	lbxrep.length = 0;
+
+    if (client->swapped) {
+	int         n;
+
+	swaps(&lbxrep.sequenceNumber, n);
+	swapl(&lbxrep.length, n);
+	swapl(&lbxrep.tag, n);
+	sreply = (xLbxFontInfo *) ALLOCATE_LOCAL(sqlen);
+	if (!sreply)
+	    return BadAlloc;
+	memcpy((char *) sreply, (char *) sqrep, sqlen);
+	LbxSwapFontInfo(sreply, lbxrep.compression);
+	sqrep = sreply;
+    }
+    WriteToClient(client, sizeof(xLbxQueryFontReply), (char *) &lbxrep);
+    if (send_data)
+	WriteToClient(client, sqlen, (char *)sqrep);
+    if (free_data)
+	xfree(sqrep);
+    if (sreply)
+	DEALLOCATE_LOCAL(sreply);
+    return (client->noClientException);
+}
+
+void
+LbxFreeFontTag(FontPtr     pfont)
+{
+    FontTagInfoPtr ftip;
+
+    ftip = (FontTagInfoPtr) FontGetPrivate(pfont, lbx_font_private);
+    if (ftip)
+	TagDeleteTag(ftip->tid);
+}
+
+int
+LbxInvalidateTag(ClientPtr   client,
+		 XID         tag)
+{
+    TagClearProxy(tag, LbxProxyID(client));
+    return client->noClientException;
+}
+
+void
+LbxSendInvalidateTag(ClientPtr   client,
+		     XID         tag,
+		     int         tagtype)
+{
+    xLbxInvalidateTagEvent ev;
+    int         n;
+
+    ev.type = LbxEventCode;
+    ev.lbxType = LbxInvalidateTagEvent;
+    ev.sequenceNumber = client->sequence;
+    ev.tag = tag;
+    ev.tagType = tagtype;
+    ev.pad1 = ev.pad2 = ev.pad3 = ev.pad4 = ev.pad5 = 0;
+
+    if (client->swapped) {
+	swaps(&ev.sequenceNumber, n);
+	swapl(&ev.tag, n);
+	swapl(&ev.tagType, n);
+    }
+    DBG(DBG_CLIENT, (stderr, "Invalidating tag  %d\n", tag));
+    WriteToClient(client, sizeof(xLbxInvalidateTagEvent), (char *) &ev);
+    LbxForceOutput(LbxProxy(client));
+}
+
+static void
+LbxSendSendTagData(int         pid,
+		   XID         tag,
+		   int         tagtype)
+{
+    xLbxSendTagDataEvent ev;
+    int         n;
+    LbxProxyPtr proxy;
+    ClientPtr   client;
+    LbxClientPtr lbxcp;
+
+    proxy = LbxPidToProxy(pid);
+    lbxcp = (proxy != NULL) ? proxy->lbxClients[0] : NULL;
+    if (lbxcp && (client = lbxcp->client)) {
+	ev.type = LbxEventCode;
+	ev.lbxType = LbxSendTagDataEvent;
+	ev.sequenceNumber = client->sequence;
+	ev.tag = tag;
+	ev.tagType = tagtype;
+	ev.pad1 = ev.pad2 = ev.pad3 = ev.pad4 = ev.pad5 = 0;
+
+	if (client->swapped) {
+	    swaps(&ev.sequenceNumber, n);
+	    swapl(&ev.tag, n);
+	    swapl(&ev.tagType, n);
+	}
+	DBG(DBG_CLIENT, (stderr, "Requesting tag %d\n", tag));
+	WriteToClient(client, sizeof(xLbxSendTagDataEvent), (char *) &ev);
+	LbxForceOutput(proxy);
+    }
+}
+
+/*
+ * keep track of clients stalled waiting for tags to come back from
+ * a proxy.  since multiple clinets can be waiting for the same tag,
+ * we have to keep a list of all of them.
+ */
+
+typedef struct _sendtagq {
+    XID         tag;
+    int         num_stalled;
+    ClientPtr  *stalled_clients;
+    struct _sendtagq *next;
+}           SendTagQRec, *SendTagQPtr;
+
+static SendTagQPtr queried_tags = NULL;
+
+#define	LbxSendTagFailed	-1
+#define	LbxSendTagSendIt	0
+#define	LbxSendTagAlreadySent	1
+
+static Bool
+LbxQueueSendTag(ClientPtr   client,
+		XID         tag)
+{
+    SendTagQPtr stqp, *prev, new;
+    ClientPtr  *newlist;
+
+
+    /* see if we're asking for one already in the pipeline */
+    for (prev = &queried_tags; (stqp = *prev); prev = &stqp->next) {
+	if (stqp->tag == tag) {
+	    /* add new client to list */
+	    newlist = (ClientPtr *) xrealloc(stqp->stalled_clients,
+			      (sizeof(ClientPtr) * (stqp->num_stalled + 1)));
+	    if (!newlist)
+		return LbxSendTagFailed;
+	    newlist[stqp->num_stalled++] = client;
+	    stqp->stalled_clients = newlist;
+	    DBG(DBG_CLIENT, (stderr, "Additional client requesting tag %d\n", tag));
+	    return LbxSendTagAlreadySent;
+	}
+    }
+
+    /* make new one */
+    new = (SendTagQPtr) xalloc(sizeof(SendTagQRec));
+    newlist = (ClientPtr *) xalloc(sizeof(ClientPtr));
+    if (!new || !newlist) {
+	xfree(new);
+	xfree(newlist);
+	return LbxSendTagFailed;
+    }
+    *newlist = client;
+    new->stalled_clients = newlist;
+    new->num_stalled = 1;
+    new->tag = tag;
+    new->next = NULL;
+
+    /* stick on end of list */
+    *prev = new;
+    return LbxSendTagSendIt;
+}
+
+static SendTagQPtr
+LbxFindQTag(XID tag)
+{
+    SendTagQPtr stqp;
+
+    for (stqp = queried_tags; stqp; stqp = stqp->next) {
+	if (stqp->tag == tag)
+	    return stqp;
+    }
+    return NULL;
+}
+
+static void
+LbxFreeQTag(SendTagQPtr stqp)
+{
+    xfree(stqp->stalled_clients);
+    xfree(stqp);
+}
+
+static void
+LbxRemoveQTag(XID	tag)
+{
+    SendTagQPtr stqp, *prev;
+
+    for (prev = &queried_tags; (stqp = *prev); prev = &stqp->next) {
+	if (stqp->tag == tag) {
+	    *prev = stqp->next;
+	    LbxFreeQTag(stqp);
+	    return;
+	}
+    }
+}
+
+Bool
+LbxFlushQTag(XID tag)
+{
+    SendTagQPtr stqp;
+    ClientPtr *cp;
+
+    stqp = LbxFindQTag(tag);
+    if (!stqp)
+	return FALSE;
+    for (cp = stqp->stalled_clients; --stqp->num_stalled >= 0; cp++)
+	AttendClient(*cp);
+    LbxRemoveQTag(tag);
+    return TRUE;
+}
+
+void
+ProcessQTagZombies(void)
+{
+    SendTagQPtr stqp;
+    ClientPtr *out, *in;
+    int i;
+
+    for (stqp = queried_tags; stqp; stqp = stqp->next) {
+	out = stqp->stalled_clients;
+	for (in = out, i = stqp->num_stalled; --i >= 0; in++) {
+	    if ((*in)->clientGone)
+		--stqp->num_stalled;
+	    else
+		*out++ = *in;
+	}
+    }
+}
+
+/*
+ * server sends this
+ */
+
+void
+LbxQueryTagData(ClientPtr   client,
+		int         owner_pid,
+		XID         tag,
+		int         tagtype)
+{
+    /* save the info and the client being stalled */
+    if (LbxQueueSendTag(client, tag) == LbxSendTagSendIt)
+	LbxSendSendTagData(owner_pid, tag, tagtype);
+}
+
+/*
+ * server recieves this
+ */
+int
+LbxTagData(ClientPtr     client,
+	   XID           tag,
+	   unsigned long len,
+	   pointer       data)
+{
+    TagData     td;
+    PropertyPtr pProp;
+
+    td = TagGetTag(tag);
+    if (!td || td->data_type != LbxTagTypeProperty)
+	return Success;
+    if (!td->global) {
+	/* somebody changed contents while we were querying */
+	TagDeleteTag(tag);
+	return Success;
+    }
+    LbxFlushQTag(tag);
+    pProp = (PropertyPtr) td->tdata;
+    if (pProp->tag_id != tag || pProp->owner_pid != LbxProxyID(client))
+	return Success;
+    pProp->owner_pid = 0;
+    if (len != td->size)
+	pProp->size = len / (pProp->format >> 3);
+    pProp->data = xrealloc(pProp->data, len);
+    if (!pProp->data) {
+	pProp->size = 0;
+	return Success;
+    }
+    if (client->swapped) {
+	switch (pProp->format) {
+	case 32:
+	    SwapLongs((CARD32 *) data, len >> 2);
+	    break;
+	case 16:
+	    SwapShorts((short *) data, len >> 1);
+	    break;
+	default:
+	    break;
+	}
+    }
+    memmove((char *) pProp->data, (char *) data, len);
+    return Success;
+}
+
+/* when server resets, need to reset global tags */
+void
+LbxResetTags(void)
+{
+    SendTagQPtr stqp;
+
+    modifier_map_tag = 0;
+    keyboard_map_tag = 0;
+
+    /* clean out any pending tag requests */
+    while ((stqp = queried_tags)) {
+	queried_tags = stqp->next;
+	LbxFreeQTag(stqp);
+    }
+}