R6.6 is the Xorg base-line

1 files changed, 1077 insertions, 0 deletions

diff --git a/xkb/XKBMAlloc.c b/xkb/XKBMAlloc.c
new file mode 100644
index 000000000..ba2a70761
--- /dev/null
+++ b/xkb/XKBMAlloc.c
@@ -0,0 +1,1077 @@
+/* $Xorg: XKBMAlloc.c,v 1.4 2000/08/17 19:45:02 cpqbld Exp $ */
+/************************************************************
+Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
+
+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 Silicon Graphics not be 
+used in advertising or publicity pertaining to distribution 
+of the software without specific prior written permission.
+Silicon Graphics makes no representation about the suitability 
+of this software for any purpose. It is provided "as is"
+without any express or implied warranty.
+
+SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 
+AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
+GRAPHICS 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.
+
+********************************************************/
+
+#ifndef XKB_IN_SERVER
+
+#include <stdio.h>
+#define NEED_REPLIES
+#define NEED_EVENTS
+#include "Xlibint.h"
+#include <X11/extensions/XKBproto.h>
+#include <X11/keysym.h>
+#include "XKBlibint.h"
+
+#else 
+
+#include <stdio.h>
+#include "X.h"
+#define	NEED_EVENTS
+#define	NEED_REPLIES
+#include "Xproto.h"
+#include "misc.h"
+#include "inputstr.h"
+#include <X11/keysym.h>
+#define	XKBSRV_NEED_FILE_FUNCS
+#include "XKBsrv.h"
+
+#endif /* XKB_IN_SERVER */
+
+/***====================================================================***/
+
+Status
+#if NeedFunctionPrototypes
+XkbAllocClientMap(XkbDescPtr xkb,unsigned which,unsigned nTotalTypes)
+#else
+XkbAllocClientMap(xkb,which,nTotalTypes)
+    XkbDescPtr		xkb;
+    unsigned		which;
+    unsigned		nTotalTypes;
+#endif
+{
+register int	i;
+XkbClientMapPtr map;
+
+    if ((xkb==NULL)||((nTotalTypes>0)&&(nTotalTypes<XkbNumRequiredTypes)))
+	return BadValue;
+    if ((which&XkbKeySymsMask)&&
+	((!XkbIsLegalKeycode(xkb->min_key_code))||
+	 (!XkbIsLegalKeycode(xkb->max_key_code))||
+	 (xkb->max_key_code<xkb->min_key_code))) {
+#ifdef DEBUG
+fprintf(stderr,"bad keycode (%d,%d) in XkbAllocClientMap\n",
+				xkb->min_key_code,xkb->max_key_code);
+#endif
+	return BadValue;
+    }
+
+    if (xkb->map==NULL) {
+	map= _XkbTypedCalloc(1,XkbClientMapRec);
+	if (map==NULL)
+	    return BadAlloc;
+	xkb->map= map;
+    }
+    else map= xkb->map;
+
+    if ((which&XkbKeyTypesMask)&&(nTotalTypes>0)) {
+	if (map->types==NULL) {
+	    map->types= _XkbTypedCalloc(nTotalTypes,XkbKeyTypeRec);
+	    if (map->types==NULL)
+		return BadAlloc;
+	    map->num_types= 0;
+	    map->size_types= nTotalTypes;
+	}
+	else if (map->size_types<nTotalTypes) {
+	    XkbKeyTypeRec *prev_types = map->types;
+
+	    map->types= _XkbTypedRealloc(map->types,nTotalTypes,XkbKeyTypeRec);
+	    if (map->types==NULL) {
+		_XkbFree(prev_types);
+		map->num_types= map->size_types= 0;
+		return BadAlloc;
+	    }
+	    map->size_types= nTotalTypes;
+	    bzero(&map->types[map->num_types], 
+		  ((map->size_types-map->num_types)*sizeof(XkbKeyTypeRec)));
+	}
+    }
+    if (which&XkbKeySymsMask) {
+	int nKeys= XkbNumKeys(xkb);
+	if (map->syms==NULL) {
+	    map->size_syms= (nKeys*15)/10;
+	    map->syms= _XkbTypedCalloc(map->size_syms,KeySym);
+	    if (!map->syms) {
+		map->size_syms= 0;
+		return BadAlloc;
+	    }
+	    map->num_syms= 1;
+	    map->syms[0]= NoSymbol;
+	}
+	if (map->key_sym_map==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->key_sym_map= _XkbTypedCalloc(i,XkbSymMapRec);
+	    if (map->key_sym_map==NULL)
+		return BadAlloc;
+	}
+    }
+    if (which&XkbModifierMapMask) {
+	if ((!XkbIsLegalKeycode(xkb->min_key_code))||
+	    (!XkbIsLegalKeycode(xkb->max_key_code))||
+	    (xkb->max_key_code<xkb->min_key_code))
+	    return BadMatch;
+	if (map->modmap==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->modmap= _XkbTypedCalloc(i,unsigned char);
+	    if (map->modmap==NULL)
+		return BadAlloc;
+	}
+    }
+    return Success;
+}
+
+Status
+#if NeedFunctionPrototypes
+XkbAllocServerMap(XkbDescPtr xkb,unsigned which,unsigned nNewActions)
+#else
+XkbAllocServerMap(xkb,which,nNewActions)
+    XkbDescPtr		xkb;
+    unsigned		which;
+    unsigned		nNewActions;
+#endif
+{
+register int	i;
+XkbServerMapPtr map;
+
+    if (xkb==NULL)
+	return BadMatch;
+    if (xkb->server==NULL) {
+	map= _XkbTypedCalloc(1,XkbServerMapRec);
+	if (map==NULL)
+	    return BadAlloc;
+	for (i=0;i<XkbNumVirtualMods;i++) {
+	    map->vmods[i]= XkbNoModifierMask;
+	}
+	xkb->server= map;
+    }
+    else map= xkb->server;
+    if (which&XkbExplicitComponentsMask) {
+	if ((!XkbIsLegalKeycode(xkb->min_key_code))||
+	    (!XkbIsLegalKeycode(xkb->max_key_code))||
+	    (xkb->max_key_code<xkb->min_key_code))
+	    return BadMatch;
+	if (map->explicit==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->explicit= _XkbTypedCalloc(i,unsigned char);
+	    if (map->explicit==NULL)
+		return BadAlloc;
+	}
+    }
+    if (which&XkbKeyActionsMask) {
+	if ((!XkbIsLegalKeycode(xkb->min_key_code))||
+	    (!XkbIsLegalKeycode(xkb->max_key_code))||
+	    (xkb->max_key_code<xkb->min_key_code))
+	    return BadMatch;
+        if (nNewActions<1)
+	    nNewActions= 1;
+	if (map->acts==NULL) {
+	    map->acts= _XkbTypedCalloc((nNewActions+1),XkbAction);
+	    if (map->acts==NULL)
+		return BadAlloc;
+	    map->num_acts= 1;
+	    map->size_acts= nNewActions+1;
+	}
+	else if ((map->size_acts-map->num_acts)<nNewActions) {
+	    unsigned need;
+	    XkbAction *prev_acts = map->acts;
+	    need= map->num_acts+nNewActions;
+	    map->acts= _XkbTypedRealloc(map->acts,need,XkbAction);
+	    if (map->acts==NULL) {
+		_XkbFree(prev_acts);
+	        map->num_acts= map->size_acts= 0;
+	        return BadAlloc;
+	    }
+	    map->size_acts= need;
+	    bzero(&map->acts[map->num_acts], 
+		    ((map->size_acts-map->num_acts)*sizeof(XkbAction)));
+	}
+	if (map->key_acts==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->key_acts= _XkbTypedCalloc(i,unsigned short);
+	    if (map->key_acts==NULL)
+		return BadAlloc;
+	}
+    }
+    if (which&XkbKeyBehaviorsMask) {
+	if ((!XkbIsLegalKeycode(xkb->min_key_code))||
+	    (!XkbIsLegalKeycode(xkb->max_key_code))||
+	    (xkb->max_key_code<xkb->min_key_code))
+	    return BadMatch;
+	if (map->behaviors==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->behaviors= _XkbTypedCalloc(i,XkbBehavior);
+	    if (map->behaviors==NULL)
+		return BadAlloc;
+	}
+    }
+    if (which&XkbVirtualModMapMask) {
+	if ((!XkbIsLegalKeycode(xkb->min_key_code))||
+	    (!XkbIsLegalKeycode(xkb->max_key_code))||
+	    (xkb->max_key_code<xkb->min_key_code))
+	    return BadMatch;
+	if (map->vmodmap==NULL) {
+	    i= xkb->max_key_code+1;
+	    map->vmodmap= _XkbTypedCalloc(i,unsigned short);
+	    if (map->vmodmap==NULL)
+		return BadAlloc;
+	}
+    }
+    return Success;
+}
+
+/***====================================================================***/
+
+Status
+#if NeedFunctionPrototypes
+XkbCopyKeyType(XkbKeyTypePtr from,XkbKeyTypePtr into)
+#else
+XkbCopyKeyType(from,into)
+    XkbKeyTypePtr	from;
+    XkbKeyTypePtr	into;
+#endif
+{
+    if ((!from)||(!into))
+	return BadMatch;
+    if (into->map) {
+	_XkbFree(into->map);
+	into->map= NULL;
+    }
+    if (into->preserve) {
+	_XkbFree(into->preserve);
+	into->preserve= NULL;
+    }
+    if (into->level_names) {
+	_XkbFree(into->level_names);
+	into->level_names= NULL;
+    }
+    *into= *from;
+    if ((from->map)&&(into->map_count>0)) {
+	into->map= _XkbTypedCalloc(into->map_count,XkbKTMapEntryRec);
+	if (!into->map)
+	    return BadAlloc;
+	memcpy(into->map,from->map,into->map_count*sizeof(XkbKTMapEntryRec));
+    }
+    if ((from->preserve)&&(into->map_count>0)) {
+	into->preserve= _XkbTypedCalloc(into->map_count,XkbModsRec);
+	if (!into->preserve)
+	    return BadAlloc;
+	memcpy(into->preserve,from->preserve,
+				into->map_count*sizeof(XkbModsRec));
+    }
+    if ((from->level_names)&&(into->num_levels>0)) {
+	into->level_names= _XkbTypedCalloc(into->num_levels,Atom);
+	if (!into->level_names)
+	    return BadAlloc;
+	memcpy(into->level_names,from->level_names,
+				 into->num_levels*sizeof(Atom));
+    }
+    return Success;
+}
+
+Status
+#if NeedFunctionPrototypes
+XkbCopyKeyTypes(XkbKeyTypePtr from,XkbKeyTypePtr into,int num_types)
+#else
+XkbCopyKeyTypes(from,into,num_types)
+    XkbKeyTypePtr	from;
+    XkbKeyTypePtr	into;
+    int			num_types;
+#endif
+{
+register int i,rtrn;
+
+    if ((!from)||(!into)||(num_types<0))
+	return BadMatch;
+    for (i=0;i<num_types;i++) {
+	if ((rtrn= XkbCopyKeyType(from++,into++))!=Success)
+	    return rtrn;
+    }
+    return Success;
+}
+
+XkbKeyTypePtr
+#if NeedFunctionPrototypes
+XkbAddKeyType(	XkbDescPtr	xkb,
+		Atom 		name,
+		int 		map_count,
+		Bool 		want_preserve,
+		int		num_lvls)
+#else
+XkbAddKeyType(xkb,name,map_count,want_preserve,num_lvls)
+    XkbDescPtr	xkb;
+    Atom	name;
+    int		map_count;
+    Bool	want_preserve;
+    int		num_lvls;
+#endif
+{
+register int 	i;
+unsigned	tmp;
+XkbKeyTypePtr	type;
+XkbClientMapPtr	map;
+
+    if ((!xkb)||(num_lvls<1))
+	return NULL;
+    map= xkb->map;
+    if ((map)&&(map->types)) {
+	for (i=0;i<map->num_types;i++) {
+	    if (map->types[i].name==name) {
+		Status status;
+		status=XkbResizeKeyType(xkb,i,map_count,want_preserve,num_lvls);
+		return (status==Success?&map->types[i]:NULL);
+	    }
+	}
+    }
+    if ((!map)||(!map->types)||(!map->num_types<XkbNumRequiredTypes)) {
+	tmp= XkbNumRequiredTypes+1;
+	if (XkbAllocClientMap(xkb,XkbKeyTypesMask,tmp)!=Success)
+	    return NULL;
+	tmp= 0;
+	if (map->num_types<=XkbKeypadIndex)
+	    tmp|= XkbKeypadMask;
+	if (map->num_types<=XkbAlphabeticIndex)
+	    tmp|= XkbAlphabeticMask;
+	if (map->num_types<=XkbTwoLevelIndex)
+	    tmp|= XkbTwoLevelMask;
+	if (map->num_types<=XkbOneLevelIndex)
+	    tmp|= XkbOneLevelMask;
+	if (XkbInitCanonicalKeyTypes(xkb,tmp,XkbNoModifier)==Success) {
+	    for (i=0;i<map->num_types;i++) {
+		Status status;
+		if (map->types[i].name!=name)
+		    continue;
+		status=XkbResizeKeyType(xkb,i,map_count,want_preserve,num_lvls);
+		return (status==Success?&map->types[i]:NULL);
+	    }
+	}
+    }
+    if ((map->num_types<=map->size_types)&&
+	(XkbAllocClientMap(xkb,XkbKeyTypesMask,map->num_types+1)!=Success)) {
+	return NULL;
+    }
+    type= &map->types[map->num_types];
+    map->num_types++;
+    bzero((char *)type,sizeof(XkbKeyTypeRec));
+    type->num_levels=	num_lvls;
+    type->map_count=	map_count;
+    type->name=		name;
+    if (map_count>0) {
+	type->map=	_XkbTypedCalloc(map_count,XkbKTMapEntryRec);
+	if (!type->map) {
+	    map->num_types--;
+	    return NULL;
+	}
+	if (want_preserve) {
+	    type->preserve=	_XkbTypedCalloc(map_count,XkbModsRec);
+	    if (!type->preserve) {
+		_XkbFree(type->map);
+		map->num_types--;
+		return NULL;
+	    }
+	}
+    }
+    return type;
+}
+
+Status
+#if NeedFunctionPrototypes
+XkbResizeKeyType(	XkbDescPtr	xkb,
+			int		type_ndx,
+			int		map_count,
+			Bool		want_preserve,
+			int		new_num_lvls)
+#else
+XkbResizeKeyType(xkb,type_ndx,map_count,want_preserve,new_num_lvls)
+    XkbDescPtr		xkb;
+    int			type_ndx;
+    int			map_count;
+    Bool		want_preserve;
+    int			new_num_lvls;
+#endif
+{
+XkbKeyTypePtr	type;
+KeyCode		matchingKeys[XkbMaxKeyCount],nMatchingKeys;
+
+    if ((type_ndx<0)||(type_ndx>=xkb->map->num_types)||(map_count<0)||
+    							(new_num_lvls<1))
+	return BadValue;
+    switch (type_ndx) {
+	case XkbOneLevelIndex:
+	    if (new_num_lvls!=1)
+		return BadMatch;
+	    break;
+	case XkbTwoLevelIndex:
+	case XkbAlphabeticIndex:
+	case XkbKeypadIndex:
+	    if (new_num_lvls!=2)
+		return BadMatch;
+	    break;
+    }
+    type= &xkb->map->types[type_ndx];
+    if (map_count==0) {
+	if (type->map!=NULL)
+	    _XkbFree(type->map);
+	type->map= NULL;
+	if (type->preserve!=NULL)
+	    _XkbFree(type->preserve);
+	type->preserve= NULL;
+	type->map_count= 0;
+    }
+    else {
+	XkbKTMapEntryRec *prev_map = type->map;
+
+	if ((map_count>type->map_count)||(type->map==NULL))
+	    type->map=_XkbTypedRealloc(type->map,map_count,XkbKTMapEntryRec);
+	if (!type->map) {
+	    if (prev_map) 
+		_XkbFree(prev_map);
+	    return BadAlloc;
+	}
+	if (want_preserve) {
+	    XkbModsRec *prev_preserve = type->preserve;
+
+	    if ((map_count>type->map_count)||(type->preserve==NULL)) {
+		type->preserve= _XkbTypedRealloc(type->preserve,map_count,
+	     						    XkbModsRec);
+	    }
+	    if (!type->preserve) {
+		if (prev_preserve) 
+		    _XkbFree(prev_preserve);
+		return BadAlloc;
+	    }
+	}
+	else if (type->preserve!=NULL) {
+	    _XkbFree(type->preserve);
+	    type->preserve= NULL;
+	}
+	type->map_count= map_count;
+    }
+
+    if ((new_num_lvls>type->num_levels)||(type->level_names==NULL)) {
+	Atom * prev_level_names = type->level_names;
+
+	type->level_names=_XkbTypedRealloc(type->level_names,new_num_lvls,Atom);
+	if (!type->level_names) {
+	    if (prev_level_names) 
+		_XkbFree(prev_level_names);
+	    return BadAlloc;
+	}
+    }
+    /*
+     * Here's the theory:
+     *    If the width of the type changed, we might have to resize the symbol
+     * maps for any keys that use the type for one or more groups.  This is
+     * expensive, so we'll try to cull out any keys that are obviously okay:
+     * In any case:
+     *    - keys that have a group width <= the old width are okay (because
+     *      they could not possibly have been associated with the old type)
+     * If the key type increased in size:
+     *    - keys that already have a group width >= to the new width are okay
+     *    + keys that have a group width >= the old width but < the new width
+     *      might have to be enlarged.
+     * If the key type decreased in size:
+     *    - keys that have a group width > the old width don't have to be
+     *      resized (because they must have some other wider type associated 
+     *      with some group).
+     *    + keys that have a group width == the old width might have to be
+     *      shrunk.
+     * The possibilities marked with '+' require us to examine the key types
+     * associated with each group for the key.
+     */
+    bzero(matchingKeys,XkbMaxKeyCount*sizeof(KeyCode));
+    nMatchingKeys= 0;
+    if (new_num_lvls>type->num_levels) {
+	int	 		nTotal;
+	KeySym	*		newSyms;
+	int			width,match,nResize;
+	register int		i,g,nSyms;
+
+	nResize= 0;
+	for (nTotal=1,i=xkb->min_key_code;i<=xkb->max_key_code;i++) {
+	    width= XkbKeyGroupsWidth(xkb,i);
+	    if (width<type->num_levels)
+		continue;
+	    for (match=0,g=XkbKeyNumGroups(xkb,i)-1;(g>=0)&&(!match);g--) {
+		if (XkbKeyKeyTypeIndex(xkb,i,g)==type_ndx) {
+		    matchingKeys[nMatchingKeys++]= i;
+		    match= 1;
+		}
+	    }
+	    if ((!match)||(width>=new_num_lvls))
+		nTotal+= XkbKeyNumSyms(xkb,i);
+	    else {
+		nTotal+= XkbKeyNumGroups(xkb,i)*new_num_lvls;
+		nResize++;
+	    }
+	}
+	if (nResize>0) {
+	    int nextMatch;
+	    xkb->map->size_syms= (nTotal*12)/10;
+	    newSyms = _XkbTypedCalloc(xkb->map->size_syms,KeySym);
+	    if (newSyms==NULL)
+		return BadAlloc;
+	    nextMatch= 0;
+	    nSyms= 1;
+	    for (i=xkb->min_key_code;i<=xkb->max_key_code;i++) {
+		if (matchingKeys[nextMatch]==i) {
+		    KeySym *pOld;
+		    nextMatch++;
+		    width= XkbKeyGroupsWidth(xkb,i);
+		    pOld= XkbKeySymsPtr(xkb,i);
+		    for (g=XkbKeyNumGroups(xkb,i)-1;g>=0;g--) {
+			memcpy(&newSyms[nSyms+(new_num_lvls*g)],&pOld[width*g],
+							width*sizeof(KeySym));
+		    }
+		    xkb->map->key_sym_map[i].offset= nSyms;
+		    nSyms+= XkbKeyNumGroups(xkb,i)*new_num_lvls;
+		}
+		else {
+		    memcpy(&newSyms[nSyms],XkbKeySymsPtr(xkb,i),
+					XkbKeyNumSyms(xkb,i)*sizeof(KeySym));
+		    xkb->map->key_sym_map[i].offset= nSyms;
+		    nSyms+= XkbKeyNumSyms(xkb,i);
+		}
+	    }
+	    type->num_levels= new_num_lvls;
+	    _XkbFree(xkb->map->syms);
+	    xkb->map->syms= newSyms;
+	    xkb->map->num_syms= nSyms;
+	    return Success;
+	}
+    }
+    else if (new_num_lvls<type->num_levels) {
+	int 		width,match;
+	register int	g,i;
+	for (i=xkb->min_key_code;i<=xkb->max_key_code;i++) {
+	    width= XkbKeyGroupsWidth(xkb,i);
+	    if (width<type->num_levels)
+		continue;
+	    for (match=0,g=XkbKeyNumGroups(xkb,i)-1;(g>=0)&&(!match);g--) {
+		if (XkbKeyKeyTypeIndex(xkb,i,g)==type_ndx) {
+		    matchingKeys[nMatchingKeys++]= i;
+		    match= 1;
+		}
+	    }
+	}
+    }
+    if (nMatchingKeys>0) {
+	int 		key,firstClear;
+	register int	i,g;
+	if (new_num_lvls>type->num_levels)
+	     firstClear= type->num_levels;
+	else firstClear= new_num_lvls;
+	for (i=0;i<nMatchingKeys;i++) {
+	    KeySym *	pSyms;
+	    int		width,nClear;
+
+	    key= matchingKeys[i];
+	    width= XkbKeyGroupsWidth(xkb,key);
+	    nClear= width-firstClear;
+	    pSyms= XkbKeySymsPtr(xkb,key);
+	    for (g=XkbKeyNumGroups(xkb,key)-1;g>=0;g--) {
+		if (XkbKeyKeyTypeIndex(xkb,key,g)==type_ndx) {
+		    if (nClear>0)
+			bzero(&pSyms[g*width+firstClear],nClear*sizeof(KeySym));
+		}
+	    }
+	}
+    }
+    type->num_levels= new_num_lvls;
+    return Success;
+}
+
+KeySym *
+#if NeedFunctionPrototypes
+XkbResizeKeySyms(XkbDescPtr xkb,int key,int needed)
+#else
+XkbResizeKeySyms(xkb,key,needed)
+    XkbDescPtr	xkb;
+    int 	key;
+    int 	needed;
+#endif
+{
+register int i,nSyms,nKeySyms;
+unsigned nOldSyms;
+KeySym	*newSyms;
+
+    if (needed==0) {
+	xkb->map->key_sym_map[key].offset= 0;
+	return xkb->map->syms;
+    }
+    nOldSyms= XkbKeyNumSyms(xkb,key);
+    if (nOldSyms>=(unsigned)needed) {
+	return XkbKeySymsPtr(xkb,key);
+    }
+    if (xkb->map->size_syms-xkb->map->num_syms>=(unsigned)needed) {
+	if (nOldSyms>0) {
+	    memcpy(&xkb->map->syms[xkb->map->num_syms],XkbKeySymsPtr(xkb,key),
+						nOldSyms*sizeof(KeySym));
+	}
+	if ((needed-nOldSyms)>0) {
+	    bzero(&xkb->map->syms[xkb->map->num_syms+XkbKeyNumSyms(xkb,key)],
+					(needed-nOldSyms)*sizeof(KeySym));
+	}
+	xkb->map->key_sym_map[key].offset = xkb->map->num_syms;
+	xkb->map->num_syms+= needed;
+	return &xkb->map->syms[xkb->map->key_sym_map[key].offset];
+    }
+    xkb->map->size_syms+= (needed>32?needed:32);
+    newSyms = _XkbTypedCalloc(xkb->map->size_syms,KeySym);
+    if (newSyms==NULL)
+	return NULL;
+    newSyms[0]= NoSymbol;
+    nSyms = 1;
+    for (i=xkb->min_key_code;i<=(int)xkb->max_key_code;i++) {
+	int nCopy;
+
+	nCopy= nKeySyms= XkbKeyNumSyms(xkb,i);
+	if ((nKeySyms==0)&&(i!=key))
+	    continue;
+	if (i==key)
+	    nKeySyms= needed;
+	if (nCopy!=0)
+	   memcpy(&newSyms[nSyms],XkbKeySymsPtr(xkb,i),nCopy*sizeof(KeySym));
+	if (nKeySyms>nCopy)
+	    bzero(&newSyms[nSyms+nCopy],(nKeySyms-nCopy)*sizeof(KeySym));
+	xkb->map->key_sym_map[i].offset = nSyms;
+	nSyms+= nKeySyms;
+    }
+    _XkbFree(xkb->map->syms);
+    xkb->map->syms = newSyms;
+    xkb->map->num_syms = nSyms;
+    return &xkb->map->syms[xkb->map->key_sym_map[key].offset];
+}
+
+static unsigned
+#if NeedFunctionPrototypes
+_ExtendRange(	unsigned int 	old_flags,
+		unsigned int	flag,
+		KeyCode		newKC,
+		KeyCode *	old_min,
+		unsigned char *	old_num)
+#else
+_ExtendRange(old_flags,flag,newKC,old_min,old_num)
+    unsigned int	old_flags;
+    unsigned int	flag;
+    KeyCode		newKC;
+    KeyCode *		old_min;
+    unsigned char *	old_num;
+#endif
+{
+    if ((old_flags&flag)==0) {
+	old_flags|= flag;
+	*old_min= newKC;
+	*old_num= 1;
+    }
+    else {
+	int	last= (*old_min)+(*old_num)-1;
+	if (newKC<*old_min) {
+	    *old_min= newKC;
+	    *old_num= (last-newKC)+1;
+	}
+	else if (newKC>last) {
+	    *old_num= (newKC-(*old_min))+1;
+	}
+    }
+    return old_flags;
+}
+
+Status
+#if NeedFunctionPrototypes
+XkbChangeKeycodeRange(	XkbDescPtr	xkb,
+			int 		minKC,
+			int 		maxKC,
+			XkbChangesPtr	changes)
+#else
+XkbChangeKeycodeRange(xkb,minKC,maxKC,changes)
+    XkbDescPtr		xkb;
+    int 		minKC;
+    int 		maxKC;
+    XkbChangesPtr	changes;
+#endif
+{
+int	tmp;
+
+    if ((!xkb)||(minKC<XkbMinLegalKeyCode)||(maxKC>XkbMaxLegalKeyCode))
+	return BadValue;
+    if (minKC>maxKC)
+	return BadMatch;
+    if (minKC<xkb->min_key_code) {
+	if (changes)
+	    changes->map.min_key_code= minKC;
+	tmp= xkb->min_key_code-minKC;
+	if (xkb->map)  {
+	    if (xkb->map->key_sym_map) {
+		bzero((char *)&xkb->map->key_sym_map[minKC],
+					tmp*sizeof(XkbSymMapRec));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    				XkbKeySymsMask,minKC,
+	    					&changes->map.first_key_sym,
+	    					&changes->map.num_key_syms);
+		}
+	    }
+	    if (xkb->map->modmap) {
+		bzero((char *)&xkb->map->modmap[minKC],tmp);
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    				XkbModifierMapMask,minKC,
+	    					&changes->map.first_modmap_key,
+	    					&changes->map.num_modmap_keys);
+		}
+	    }
+	}
+	if (xkb->server) {
+	    if (xkb->server->behaviors) {
+		bzero((char *)&xkb->server->behaviors[minKC],
+						tmp*sizeof(XkbBehavior));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbKeyBehaviorsMask,minKC,
+    					&changes->map.first_key_behavior,
+    					&changes->map.num_key_behaviors);
+		}
+	    }
+	    if (xkb->server->key_acts) {
+		bzero((char *)&xkb->server->key_acts[minKC],
+						tmp*sizeof(unsigned short));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbKeyActionsMask,minKC,
+    					&changes->map.first_key_act,
+    					&changes->map.num_key_acts);
+		}
+	    }
+	    if (xkb->server->vmodmap) {
+		bzero((char *)&xkb->server->vmodmap[minKC],
+						tmp*sizeof(unsigned short));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbVirtualModMapMask,minKC,
+		    			&changes->map.first_modmap_key,
+    					&changes->map.num_vmodmap_keys);
+		}
+	    }
+	}
+	if ((xkb->names)&&(xkb->names->keys)) {
+	    bzero((char *)&xkb->names->keys[minKC],tmp*sizeof(XkbKeyNameRec));
+	    if (changes) {
+		changes->names.changed= _ExtendRange(changes->names.changed,
+					XkbKeyNamesMask,minKC,
+					&changes->names.first_key,
+    					&changes->names.num_keys);
+	    }
+	}
+	xkb->min_key_code= minKC;
+    }
+    if (maxKC>xkb->max_key_code) {
+	if (changes)
+	    changes->map.max_key_code= maxKC;
+	tmp= maxKC-xkb->max_key_code;
+	if (xkb->map)  {
+	    if (xkb->map->key_sym_map) {
+		XkbSymMapRec *prev_key_sym_map = xkb->map->key_sym_map;
+
+		xkb->map->key_sym_map= _XkbTypedRealloc(xkb->map->key_sym_map,
+						(maxKC+1),XkbSymMapRec);
+		if (!xkb->map->key_sym_map) {
+		    _XkbFree(prev_key_sym_map);
+		    return BadAlloc;
+		}
+		bzero((char *)&xkb->map->key_sym_map[xkb->max_key_code],
+					tmp*sizeof(XkbSymMapRec));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    				XkbKeySymsMask,maxKC,
+	    					&changes->map.first_key_sym,
+	    					&changes->map.num_key_syms);
+		}
+	    }
+	    if (xkb->map->modmap) {
+		unsigned char *prev_modmap = xkb->map->modmap;
+
+		xkb->map->modmap= _XkbTypedRealloc(xkb->map->modmap,
+						(maxKC+1),unsigned char);
+		if (!xkb->map->modmap) {
+		    _XkbFree(prev_modmap);
+		    return BadAlloc;
+		}
+		bzero((char *)&xkb->map->modmap[xkb->max_key_code],tmp);
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    				XkbModifierMapMask,maxKC,
+	    					&changes->map.first_modmap_key,
+	    					&changes->map.num_modmap_keys);
+		}
+	    }
+	}
+	if (xkb->server) {
+	    if (xkb->server->behaviors) {
+		XkbBehavior *prev_behaviors = xkb->server->behaviors;
+
+		xkb->server->behaviors=_XkbTypedRealloc(xkb->server->behaviors,
+						(maxKC+1),XkbBehavior);
+		if (!xkb->server->behaviors) {
+		    _XkbFree(prev_behaviors);
+		    return BadAlloc;
+		}
+		bzero((char *)&xkb->server->behaviors[xkb->max_key_code],
+						tmp*sizeof(XkbBehavior));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbKeyBehaviorsMask,maxKC,
+    					&changes->map.first_key_behavior,
+    					&changes->map.num_key_behaviors);
+		}
+	    }
+	    if (xkb->server->key_acts) {
+		unsigned short *prev_key_acts = xkb->server->key_acts;
+
+		xkb->server->key_acts= _XkbTypedRealloc(xkb->server->key_acts,
+						(maxKC+1),unsigned short);
+		if (!xkb->server->key_acts) {
+		    _XkbFree(prev_key_acts);
+		    return BadAlloc;
+		}
+		bzero((char *)&xkb->server->key_acts[xkb->max_key_code],
+						tmp*sizeof(unsigned short));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbKeyActionsMask,maxKC,
+    					&changes->map.first_key_act,
+    					&changes->map.num_key_acts);
+		}
+	    }
+	    if (xkb->server->vmodmap) {
+		unsigned short *prev_vmodmap = xkb->server->vmodmap;
+
+		xkb->server->vmodmap= _XkbTypedRealloc(xkb->server->vmodmap,
+						(maxKC+1),unsigned short);
+		if (!xkb->server->vmodmap) {
+		    _XkbFree(prev_vmodmap);
+		    return BadAlloc;
+		}
+		bzero((char *)&xkb->server->vmodmap[xkb->max_key_code],
+						tmp*sizeof(unsigned short));
+		if (changes) {
+		    changes->map.changed= _ExtendRange(changes->map.changed,
+		    			XkbVirtualModMapMask,maxKC,
+		    			&changes->map.first_modmap_key,
+    					&changes->map.num_vmodmap_keys);
+		}
+	    }
+	}
+	if ((xkb->names)&&(xkb->names->keys)) {
+	    XkbKeyNameRec *prev_keys = xkb->names->keys;
+
+	    xkb->names->keys= _XkbTypedRealloc(xkb->names->keys,
+	    					(maxKC+1),XkbKeyNameRec);
+	    if (!xkb->names->keys) {
+		_XkbFree(prev_keys);
+		return BadAlloc;
+	    }
+	    bzero((char *)&xkb->names->keys[xkb->max_key_code],
+	    					tmp*sizeof(XkbKeyNameRec));
+	    if (changes) {
+		changes->names.changed= _ExtendRange(changes->names.changed,
+					XkbKeyNamesMask,maxKC,
+					&changes->names.first_key,
+    					&changes->names.num_keys);
+	    }
+	}
+	xkb->max_key_code= maxKC;
+    }
+    return Success;
+}
+
+XkbAction *
+#if NeedFunctionPrototypes
+XkbResizeKeyActions(XkbDescPtr xkb,int key,int needed)
+#else
+XkbResizeKeyActions(xkb,key,needed)
+    XkbDescPtr	xkb;
+    int 	key;
+    int 	needed;
+#endif
+{
+register int i,nActs;
+XkbAction *newActs;
+
+    if (needed==0) {
+	xkb->server->key_acts[key]= 0;
+	return NULL;
+    }
+    if (XkbKeyHasActions(xkb,key)&&(XkbKeyNumSyms(xkb,key)>=(unsigned)needed))
+	return XkbKeyActionsPtr(xkb,key);
+    if (xkb->server->size_acts-xkb->server->num_acts>=(unsigned)needed) {
+	xkb->server->key_acts[key]= xkb->server->num_acts;
+	xkb->server->num_acts+= needed;
+	return &xkb->server->acts[xkb->server->key_acts[key]];
+    }
+    xkb->server->size_acts= xkb->server->num_acts+needed+8;
+    newActs = _XkbTypedCalloc(xkb->server->size_acts,XkbAction);
+    if (newActs==NULL)
+	return NULL;
+    newActs[0].type = XkbSA_NoAction;
+    nActs = 1;
+    for (i=xkb->min_key_code;i<=(int)xkb->max_key_code;i++) {
+	int nKeyActs,nCopy;
+
+	if ((xkb->server->key_acts[i]==0)&&(i!=key))
+	    continue;
+
+	nCopy= nKeyActs= XkbKeyNumActions(xkb,i);
+	if (i==key) {
+	    nKeyActs= needed;
+	    if (needed<nCopy)
+		nCopy= needed;
+	}
+
+	if (nCopy>0)
+	    memcpy(&newActs[nActs],XkbKeyActionsPtr(xkb,i),
+						nCopy*sizeof(XkbAction));
+	if (nCopy<nKeyActs)
+	    bzero(&newActs[nActs+nCopy],(nKeyActs-nCopy)*sizeof(XkbAction));
+	xkb->server->key_acts[i]= nActs;
+	nActs+= nKeyActs;
+    }
+    _XkbFree(xkb->server->acts);
+    xkb->server->acts = newActs;
+    xkb->server->num_acts= nActs;
+    return &xkb->server->acts[xkb->server->key_acts[key]];
+}
+
+void
+#if NeedFunctionPrototypes
+XkbFreeClientMap(XkbDescPtr xkb,unsigned what,Bool freeMap)
+#else
+XkbFreeClientMap(xkb,what,freeMap)
+    XkbDescPtr	xkb;
+    unsigned	what;
+    Bool	freeMap;
+#endif
+{
+XkbClientMapPtr	map;
+
+    if ((xkb==NULL)||(xkb->map==NULL))
+	return;
+    if (freeMap)
+	what= XkbAllClientInfoMask;
+    map= xkb->map;
+    if (what&XkbKeyTypesMask) {
+	if (map->types!=NULL) {
+	    if (map->num_types>0) {
+		register int 	i;
+		XkbKeyTypePtr	type;
+		for (i=0,type=map->types;i<map->num_types;i++,type++) {
+		    if (type->map!=NULL) {
+			_XkbFree(type->map);
+			type->map= NULL;
+		    }
+		    if (type->preserve!=NULL) {
+			_XkbFree(type->preserve);
+			type->preserve= NULL;
+		    }
+		    type->map_count= 0;
+		    if (type->level_names!=NULL) {
+			_XkbFree(type->level_names);
+			type->level_names= NULL;
+		    }
+		}
+	    }
+	    _XkbFree(map->types);
+	    map->num_types= map->size_types= 0;
+	    map->types= NULL;
+	}
+    }
+    if (what&XkbKeySymsMask) {
+	if (map->key_sym_map!=NULL) {
+	    _XkbFree(map->key_sym_map);
+	    map->key_sym_map= NULL;
+	}
+	if (map->syms!=NULL) {
+	    _XkbFree(map->syms);
+	    map->size_syms= map->num_syms= 0;
+	    map->syms= NULL;
+	}
+    }
+    if ((what&XkbModifierMapMask)&&(map->modmap!=NULL)) {
+	_XkbFree(map->modmap);
+	map->modmap= NULL;
+    }
+    if (freeMap) {
+	_XkbFree(xkb->map);
+	xkb->map= NULL;
+    }
+    return;
+}
+
+void
+#if NeedFunctionPrototypes
+XkbFreeServerMap(XkbDescPtr xkb,unsigned what,Bool freeMap)
+#else
+XkbFreeServerMap(xkb,what,freeMap)
+    XkbDescPtr	xkb;
+    unsigned	what;
+    Bool	freeMap;
+#endif
+{
+XkbServerMapPtr	map;
+
+    if ((xkb==NULL)||(xkb->server==NULL))
+	return;
+    if (freeMap)
+	what= XkbAllServerInfoMask;
+    map= xkb->server;
+    if ((what&XkbExplicitComponentsMask)&&(map->explicit!=NULL)) {
+	_XkbFree(map->explicit);
+	map->explicit= NULL;
+    }
+    if (what&XkbKeyActionsMask) {
+	if (map->key_acts!=NULL) {
+	    _XkbFree(map->key_acts);
+	    map->key_acts= NULL;
+	}
+	if (map->acts!=NULL) {
+	    _XkbFree(map->acts);
+	    map->num_acts= map->size_acts= 0;
+	    map->acts= NULL;
+	}
+    }
+    if ((what&XkbKeyBehaviorsMask)&&(map->behaviors!=NULL)) {
+	_XkbFree(map->behaviors);
+	map->behaviors= NULL;
+    }
+    if ((what&XkbVirtualModMapMask)&&(map->vmodmap!=NULL)) {
+	_XkbFree(map->vmodmap);
+	map->vmodmap= NULL;
+    }
+
+    if (freeMap) {
+	_XkbFree(xkb->server);
+	xkb->server= NULL;
+    }
+    return;
+}