xref: /xsrc/external/mit/xorg-server.old/dist/xkb/xkmread.c

/************************************************************
 Copyright (c) 1994 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.

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

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

#include <stdio.h>

#include <X11/Xos.h>
#include <X11/Xfuncs.h>

#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/keysym.h>
#include <X11/extensions/XKMformat.h>
#include "misc.h"
#include "inputstr.h"
#include "xkbstr.h"
#include "xkbsrv.h"
#include "xkbgeom.h"

Atom
XkbInternAtom(char *str,Bool only_if_exists)
{
    if (str==NULL)
	return None;
    return MakeAtom(str,strlen(str),!only_if_exists);
}

char *
_XkbDupString(const char *str)
{
char *new;

   if (str==NULL)
	return NULL;
   new= calloc(strlen(str)+1,sizeof(char));
   if (new)
	strcpy(new,str);
   return new;
}

/***====================================================================***/

static void *
XkmInsureSize(void *oldPtr,int oldCount,int *newCountRtrn,int elemSize)
{
int	newCount= *newCountRtrn;

    if (oldPtr==NULL) {
	if (newCount==0)
	    return NULL;
	oldPtr= calloc(newCount,elemSize);
    }
    else if (oldCount<newCount) {
	oldPtr= realloc(oldPtr,newCount*elemSize);
	if (oldPtr!=NULL) {
	    char *tmp= (char *)oldPtr;
	    memset(&tmp[oldCount*elemSize], 0, (newCount-oldCount)*elemSize);
	}
    }
    else if (newCount<oldCount) {
	*newCountRtrn= oldCount;
    }
    return oldPtr;
}

#define	XkmInsureTypedSize(p,o,n,t) ((p)=((t *)XkmInsureSize((char *)(p),(o),(n),sizeof(t))))

static CARD8
XkmGetCARD8(FILE *file,int *pNRead)
{
int	tmp;
    tmp= getc(file);
    if (pNRead&&(tmp!=EOF))
	(*pNRead)+= 1;
    return tmp;
}

static CARD16
XkmGetCARD16(FILE *file,int *pNRead)
{
CARD16		val;

    if ((fread(&val,2,1,file)==1)&&(pNRead))
	(*pNRead)+= 2;
    return val;
}

static CARD32
XkmGetCARD32(FILE *file,int *pNRead)
{
CARD32	val;

    if ((fread(&val,4,1,file)==1)&&(pNRead))
	(*pNRead)+= 4;
    return val;
}

static int
XkmSkipPadding(FILE *file,unsigned pad)
{
register int	i,nRead=0;

    for (i=0;i<pad;i++) {
	if (getc(file)!=EOF)
	    nRead++;
    }
    return nRead;
}

static int
XkmGetCountedString(FILE *file,char *str,int max_len)
{
int	count,nRead=0;

    count= XkmGetCARD16(file,&nRead);
    if (count>0) {
	int tmp;
	if (count>max_len) {
	    tmp= fread(str,1,max_len,file);
	    while (tmp<count) {
		if ((getc(file))!=EOF)
		     tmp++;
		else break;
	    }
	}
	else {
	    tmp= fread(str,1,count,file);
	}
	nRead+= tmp;
    }
    if (count>=max_len)	str[max_len-1]= '\0';
    else		str[count]= '\0';
    count= XkbPaddedSize(nRead)-nRead;
    if (count>0)
	nRead+= XkmSkipPadding(file,count);
    return nRead;
}

/***====================================================================***/

static int
ReadXkmVirtualMods(FILE *file,XkbDescPtr xkb,XkbChangesPtr changes)
{
register unsigned int i,bit;
unsigned int	bound,named,tmp;
int		nRead=0;

    if (XkbAllocServerMap(xkb,XkbVirtualModsMask,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmVirtualMods",0);
	return -1;
    }
    bound= XkmGetCARD16(file,&nRead);
    named= XkmGetCARD16(file,&nRead);
    for (i=tmp=0,bit=1;i<XkbNumVirtualMods;i++,bit<<=1) {
	if (bound&bit) {
	    xkb->server->vmods[i]= XkmGetCARD8(file,&nRead);
	    if (changes)
		changes->map.vmods|= bit;
	    tmp++;
	}
    }
    if ((i= XkbPaddedSize(tmp)-tmp)>0)
	nRead+= XkmSkipPadding(file,i);
    if (XkbAllocNames(xkb,XkbVirtualModNamesMask,0,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmVirtualMods",0);
	return -1;
    }
    for (i=0,bit=1;i<XkbNumVirtualMods;i++,bit<<=1) {
	char name[100];
	if (named&bit) {
	    if (nRead+=XkmGetCountedString(file,name,100)) {
		xkb->names->vmods[i]= XkbInternAtom(name,FALSE);
		if (changes)
		    changes->names.changed_vmods|= bit;
	    }
	}
    }
    return nRead;
}

/***====================================================================***/

static int
ReadXkmKeycodes(FILE *file,XkbDescPtr xkb,XkbChangesPtr changes)
{
register int	i;
unsigned	minKC,maxKC,nAl;
int		nRead=0;
char 		name[100];
XkbKeyNamePtr	pN;

    name[0]= '\0';
    nRead+= XkmGetCountedString(file,name,100);
    minKC= XkmGetCARD8(file,&nRead);
    maxKC= XkmGetCARD8(file,&nRead);
    if (xkb->min_key_code==0) {
	xkb->min_key_code= minKC;
	xkb->max_key_code= maxKC;
    }
    else {
	if (minKC<xkb->min_key_code)
	    xkb->min_key_code= minKC;
	if (maxKC>xkb->max_key_code) {
	    _XkbLibError(_XkbErrBadValue,"ReadXkmKeycodes",maxKC);
	    return -1;
	}
    }
    nAl= XkmGetCARD8(file,&nRead);
    nRead+= XkmSkipPadding(file,1);

#define WANTED (XkbKeycodesNameMask|XkbKeyNamesMask|XkbKeyAliasesMask)
    if (XkbAllocNames(xkb,WANTED,0,nAl)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmKeycodes",0);
	return -1;
    }
    if (name[0]!='\0') {
	xkb->names->keycodes= XkbInternAtom(name,FALSE);
    }

    for (pN=&xkb->names->keys[minKC],i=minKC;i<=(int)maxKC;i++,pN++) {
	if (fread(pN,1,XkbKeyNameLength,file)!=XkbKeyNameLength) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmKeycodes",0);
	    return -1;
	}
	nRead+= XkbKeyNameLength;
    }
    if (nAl>0) {
	XkbKeyAliasPtr	pAl;
	for (pAl= xkb->names->key_aliases,i=0;i<nAl;i++,pAl++) {
	    int tmp;
	    tmp= fread(pAl,1,2*XkbKeyNameLength,file);
	    if (tmp!=2*XkbKeyNameLength) {
		_XkbLibError(_XkbErrBadLength,"ReadXkmKeycodes",0);
		return -1;
	    }
	    nRead+= 2*XkbKeyNameLength;
	}
	if (changes)
	    changes->names.changed|= XkbKeyAliasesMask;
    }
    if (changes)
	changes->names.changed|= XkbKeyNamesMask;
    return nRead;
}

/***====================================================================***/

static int
ReadXkmKeyTypes(FILE *file,XkbDescPtr xkb,XkbChangesPtr changes)
{
register unsigned	i,n;
unsigned		num_types;
int			nRead=0;
int			tmp;
XkbKeyTypePtr		type;
xkmKeyTypeDesc		wire;
XkbKTMapEntryPtr	entry;
xkmKTMapEntryDesc	wire_entry;
char 			buf[100];

    if ((tmp= XkmGetCountedString(file,buf,100))<1) {
	_XkbLibError(_XkbErrBadLength,"ReadXkmKeyTypes",0);
	return -1;
    }
    nRead+= tmp;
    if (buf[0]!='\0') {
	if (XkbAllocNames(xkb,XkbTypesNameMask,0,0)!=Success) {
	    _XkbLibError(_XkbErrBadAlloc,"ReadXkmKeyTypes",0);
	    return -1;
        }
	xkb->names->types= XkbInternAtom(buf,FALSE);
    }
    num_types= XkmGetCARD16(file,&nRead);
    nRead+= XkmSkipPadding(file,2);
    if (num_types<1)
	return nRead;
    if (XkbAllocClientMap(xkb,XkbKeyTypesMask,num_types)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmKeyTypes",0);
	return nRead;
    }
    xkb->map->num_types= num_types;
    if (num_types<XkbNumRequiredTypes) {
	_XkbLibError(_XkbErrMissingReqTypes,"ReadXkmKeyTypes",0);
	return -1;
    }
    type= xkb->map->types;
    for (i=0;i<num_types;i++,type++) {
	if ((int)fread(&wire,SIZEOF(xkmKeyTypeDesc),1,file)<1) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmKeyTypes",0);
	    return -1;
	}
	nRead+= SIZEOF(xkmKeyTypeDesc);
	if (((i==XkbOneLevelIndex)&&(wire.numLevels!=1))||
	    (((i==XkbTwoLevelIndex)||(i==XkbAlphabeticIndex)||
	     ((i)==XkbKeypadIndex))&&(wire.numLevels!=2))) {
	    _XkbLibError(_XkbErrBadTypeWidth,"ReadXkmKeyTypes",i);
	    return -1;
	}
	tmp= wire.nMapEntries;
	XkmInsureTypedSize(type->map,type->map_count,&tmp,XkbKTMapEntryRec);
	if ((wire.nMapEntries>0)&&(type->map==NULL)) {
	    _XkbLibError(_XkbErrBadValue,"ReadXkmKeyTypes",wire.nMapEntries);
	    return -1;
	}
	for (n=0,entry= type->map;n<wire.nMapEntries;n++,entry++) {
	    if (fread(&wire_entry,SIZEOF(xkmKTMapEntryDesc),1,file)<(int)1) {
		_XkbLibError(_XkbErrBadLength,"ReadXkmKeyTypes",0);
		return -1;
	    }
	    nRead+= SIZEOF(xkmKTMapEntryDesc);
	    entry->active= (wire_entry.virtualMods==0);
	    entry->level= wire_entry.level;
	    entry->mods.mask= wire_entry.realMods;
	    entry->mods.real_mods= wire_entry.realMods;
	    entry->mods.vmods= wire_entry.virtualMods;
	}
	nRead+= XkmGetCountedString(file,buf,100);
	if (((i==XkbOneLevelIndex)&&(strcmp(buf,"ONE_LEVEL")!=0))||
	    ((i==XkbTwoLevelIndex)&&(strcmp(buf,"TWO_LEVEL")!=0))||
	    ((i==XkbAlphabeticIndex)&&(strcmp(buf,"ALPHABETIC")!=0))||
	    ((i==XkbKeypadIndex)&&(strcmp(buf,"KEYPAD")!=0))) {
	   _XkbLibError(_XkbErrBadTypeName,"ReadXkmKeyTypes",0);
	   return -1;
	}
	if (buf[0]!='\0') {
	     type->name= XkbInternAtom(buf,FALSE);
	}
	else type->name= None;

	if (wire.preserve) {
	    xkmModsDesc	p_entry;
	    XkbModsPtr	pre;
	    XkmInsureTypedSize(type->preserve,type->map_count,&tmp,
						XkbModsRec);
	    if (type->preserve==NULL) {
		_XkbLibError(_XkbErrBadMatch,"ReadXkmKeycodes",0);
		return -1;
	    }
	    for (n=0,pre=type->preserve;n<wire.nMapEntries;n++,pre++) {
		if (fread(&p_entry,SIZEOF(xkmModsDesc),1,file)<1) {
		    _XkbLibError(_XkbErrBadLength,"ReadXkmKeycodes",0);
		    return -1;
		}
		nRead+= SIZEOF(xkmModsDesc);
		pre->mask= p_entry.realMods;
		pre->real_mods= p_entry.realMods;
		pre->vmods= p_entry.virtualMods;
	    }
	}
	if (wire.nLevelNames>0) {
	    int width= wire.numLevels;
	    if (wire.nLevelNames>(unsigned)width) {
		_XkbLibError(_XkbErrBadMatch,"ReadXkmKeycodes",0);
		return -1;
	    }
	    XkmInsureTypedSize(type->level_names,type->num_levels,&width,Atom);
	    if (type->level_names!=NULL) {
		for (n=0;n<wire.nLevelNames;n++) {
		    if ((tmp=XkmGetCountedString(file,buf,100))<1)
			return -1;
		    nRead+= tmp;
		    if (strlen(buf)==0)
			 type->level_names[n]= None;
		    else type->level_names[n]= XkbInternAtom(buf,0);
		}
	    }
	}
	type->mods.mask= wire.realMods;
	type->mods.real_mods= wire.realMods;
	type->mods.vmods= wire.virtualMods;
	type->num_levels= wire.numLevels;
	type->map_count= wire.nMapEntries;
    }
    if (changes) {
	changes->map.changed|= XkbKeyTypesMask;
	changes->map.first_type= 0;
	changes->map.num_types= xkb->map->num_types;
    }
    return nRead;
}

/***====================================================================***/

static int
ReadXkmCompatMap(FILE *file,XkbDescPtr xkb,XkbChangesPtr changes)
{
register int		i;
unsigned		num_si,groups;
char 			name[100];
XkbSymInterpretPtr	interp;
xkmSymInterpretDesc	wire;
unsigned		tmp;
int			nRead=0;
XkbCompatMapPtr		compat;
XkbAction               *act;

    if ((tmp= XkmGetCountedString(file,name,100))<1) {
	_XkbLibError(_XkbErrBadLength,"ReadXkmCompatMap",0);
	return -1;
    }
    nRead+= tmp;
    if (name[0]!='\0') {
	if (XkbAllocNames(xkb,XkbCompatNameMask,0,0)!=Success) {
	    _XkbLibError(_XkbErrBadAlloc,"ReadXkmCompatMap",0);
	    return -1;
	}
	xkb->names->compat= XkbInternAtom(name,FALSE);
    }
    num_si= XkmGetCARD16(file,&nRead);
    groups= XkmGetCARD8(file,&nRead);
    nRead+= XkmSkipPadding(file,1);
    if (XkbAllocCompatMap(xkb,XkbAllCompatMask,num_si)!=Success)
	return -1;
    compat= xkb->compat;
    compat->num_si= num_si;
    interp= compat->sym_interpret;
    for (i=0;i<num_si;i++,interp++) {
	tmp= fread(&wire,SIZEOF(xkmSymInterpretDesc),1,file);
	nRead+= tmp*SIZEOF(xkmSymInterpretDesc);
	interp->sym= wire.sym;
	interp->mods= wire.mods;
	interp->match= wire.match;
	interp->virtual_mod= wire.virtualMod;
	interp->flags= wire.flags;
	interp->act.type= wire.actionType;
        act = (XkbAction *) &interp->act;

        switch (interp->act.type) {
        case XkbSA_SetMods:
        case XkbSA_LatchMods:
        case XkbSA_LockMods:
            act->mods.flags = wire.actionData[0];
            act->mods.mask = wire.actionData[1];
            act->mods.real_mods = wire.actionData[2];
            act->mods.vmods1 = wire.actionData[3];
            act->mods.vmods2 = wire.actionData[4];
            break;
        case XkbSA_SetGroup:
        case XkbSA_LatchGroup:
        case XkbSA_LockGroup:
            act->group.flags = wire.actionData[0];
            act->group.group_XXX = wire.actionData[1];
            break;
        case XkbSA_MovePtr:
            act->ptr.flags = wire.actionData[0];
            act->ptr.high_XXX = wire.actionData[1];
            act->ptr.low_XXX = wire.actionData[2];
            act->ptr.high_YYY = wire.actionData[3];
            act->ptr.low_YYY = wire.actionData[4];
            break;
        case XkbSA_PtrBtn:
        case XkbSA_LockPtrBtn:
            act->btn.flags = wire.actionData[0];
            act->btn.count = wire.actionData[1];
            act->btn.button = wire.actionData[2];
            break;
        case XkbSA_DeviceBtn:
        case XkbSA_LockDeviceBtn:
            act->devbtn.flags = wire.actionData[0];
            act->devbtn.count = wire.actionData[1];
            act->devbtn.button = wire.actionData[2];
            act->devbtn.device = wire.actionData[3];
            break;
        case XkbSA_SetPtrDflt:
            act->dflt.flags = wire.actionData[0];
            act->dflt.affect = wire.actionData[1];
            act->dflt.valueXXX = wire.actionData[2];
            break;
        case XkbSA_ISOLock:
            act->iso.flags = wire.actionData[0];
            act->iso.mask = wire.actionData[1];
            act->iso.real_mods = wire.actionData[2];
            act->iso.group_XXX = wire.actionData[3];
            act->iso.affect = wire.actionData[4];
            act->iso.vmods1 = wire.actionData[5];
            act->iso.vmods2 = wire.actionData[6];
            break;
        case XkbSA_SwitchScreen:
            act->screen.flags = wire.actionData[0];
            act->screen.screenXXX = wire.actionData[1];
            break;
        case XkbSA_SetControls:
        case XkbSA_LockControls:
            act->ctrls.flags = wire.actionData[0];
            act->ctrls.ctrls3 = wire.actionData[1];
            act->ctrls.ctrls2 = wire.actionData[2];
            act->ctrls.ctrls1 = wire.actionData[3];
            act->ctrls.ctrls0 = wire.actionData[4];
            break;
        case XkbSA_RedirectKey:
            act->redirect.new_key = wire.actionData[0];
            act->redirect.mods_mask = wire.actionData[1];
            act->redirect.mods = wire.actionData[2];
            act->redirect.vmods_mask0 = wire.actionData[3];
            act->redirect.vmods_mask1 = wire.actionData[4];
            act->redirect.vmods0 = wire.actionData[4];
            act->redirect.vmods1 = wire.actionData[5];
            break;
        case XkbSA_DeviceValuator:
            act->devval.device = wire.actionData[0];
            act->devval.v1_what = wire.actionData[1];
            act->devval.v1_ndx = wire.actionData[2];
            act->devval.v1_value = wire.actionData[3];
            act->devval.v2_what = wire.actionData[4];
            act->devval.v2_ndx = wire.actionData[5];
            act->devval.v2_what = wire.actionData[6];
            break;

        case XkbSA_XFree86Private:
            /* copy the kind of action */
            memcpy(act->any.data, wire.actionData, XkbAnyActionDataSize);
            break ;

        case XkbSA_Terminate:
            /* no args, kinda (note: untrue for xfree86). */
            break;
        case XkbSA_ActionMessage:
            /* unsupported. */
            break;
        }
    }
    if ((num_si>0)&&(changes)) {
	changes->compat.first_si= 0;
	changes->compat.num_si= num_si;
    }
    if (groups) {
	register unsigned bit;
	for (i=0,bit=1;i<XkbNumKbdGroups;i++,bit<<=1) {
	    xkmModsDesc	md;
	    if (groups&bit) {
		tmp= fread(&md,SIZEOF(xkmModsDesc),1,file);
		nRead+= tmp*SIZEOF(xkmModsDesc);
		xkb->compat->groups[i].real_mods= md.realMods;
		xkb->compat->groups[i].vmods= md.virtualMods;
		if (md.virtualMods != 0) {
		    unsigned mask;
		    if (XkbVirtualModsToReal(xkb,md.virtualMods,&mask))
			xkb->compat->groups[i].mask= md.realMods|mask;
		}
		else xkb->compat->groups[i].mask= md.realMods;
	    }
	}
	if (changes)
	    changes->compat.changed_groups|= groups;
    }
    return nRead;
}

static int
ReadXkmIndicators(FILE *file,XkbDescPtr xkb,XkbChangesPtr changes)
{
register unsigned	nLEDs;
xkmIndicatorMapDesc	wire;
char			buf[100];
unsigned		tmp;
int			nRead=0;

    if ((xkb->indicators==NULL)&&(XkbAllocIndicatorMaps(xkb)!=Success)) {
	_XkbLibError(_XkbErrBadAlloc,"indicator rec",0);
	return -1;
    }
    if (XkbAllocNames(xkb,XkbIndicatorNamesMask,0,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"indicator names",0);
	return -1;
    }
    nLEDs= XkmGetCARD8(file,&nRead);
    nRead+= XkmSkipPadding(file,3);
    xkb->indicators->phys_indicators= XkmGetCARD32(file,&nRead);
    while (nLEDs-->0) {
	Atom 			name;
	XkbIndicatorMapPtr	map;

	if ((tmp=XkmGetCountedString(file,buf,100))<1) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmIndicators",0);
	    return -1;
	}
	nRead+= tmp;
	if (buf[0]!='\0')
	     name= XkbInternAtom(buf,FALSE);
	else name= None;
	if ((tmp=fread(&wire,SIZEOF(xkmIndicatorMapDesc),1,file))<1) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmIndicators",0);
	    return -1;
	}
	nRead+= tmp*SIZEOF(xkmIndicatorMapDesc);
	if (xkb->names) {
	    xkb->names->indicators[wire.indicator-1]= name;
	    if (changes)
		changes->names.changed_indicators|= (1<<(wire.indicator-1));
	}
	map= &xkb->indicators->maps[wire.indicator-1];
	map->flags= wire.flags;
	map->which_groups= wire.which_groups;
	map->groups= wire.groups;
	map->which_mods= wire.which_mods;
	map->mods.mask= wire.real_mods;
	map->mods.real_mods= wire.real_mods;
	map->mods.vmods= wire.vmods;
	map->ctrls= wire.ctrls;
    }
    return nRead;
}

static XkbKeyTypePtr
FindTypeForKey(XkbDescPtr xkb,Atom name,unsigned width,KeySym *syms)
{
    if ((!xkb)||(!xkb->map))
	return NULL;
    if (name!=None) {
	register unsigned i;
	for (i=0;i<xkb->map->num_types;i++) {
	    if (xkb->map->types[i].name==name) {
		if (xkb->map->types[i].num_levels!=width)
		    DebugF("Group width mismatch between key and type\n");
		return &xkb->map->types[i];
	    }
	}
    }
    if ((width<2)||((syms!=NULL)&&(syms[1]==NoSymbol)))
	return &xkb->map->types[XkbOneLevelIndex];
    if (syms!=NULL) {
	if (XkbKSIsLower(syms[0])&&XkbKSIsUpper(syms[1]))
	    return &xkb->map->types[XkbAlphabeticIndex];
	else if (XkbKSIsKeypad(syms[0])||XkbKSIsKeypad(syms[1]))
	    return &xkb->map->types[XkbKeypadIndex];
    }
    return &xkb->map->types[XkbTwoLevelIndex];
}

static int
ReadXkmSymbols(FILE *file,XkbDescPtr xkb)
{
register int		i,g,s,totalVModMaps;
xkmKeySymMapDesc 	wireMap;
char 			buf[100];
unsigned		minKC,maxKC,groupNames,tmp;
int			nRead=0;

    if ((tmp=XkmGetCountedString(file,buf,100))<1)
	return -1;
    nRead+= tmp;
    minKC= XkmGetCARD8(file,&nRead);
    maxKC= XkmGetCARD8(file,&nRead);
    groupNames= XkmGetCARD8(file,&nRead);
    totalVModMaps= XkmGetCARD8(file,&nRead);
    if (XkbAllocNames(xkb,
	      XkbSymbolsNameMask|XkbPhysSymbolsNameMask|XkbGroupNamesMask,
	      0,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"physical names",0);
	return -1;
    }
    if ((buf[0]!='\0')&&(xkb->names)) {
	Atom name;
	name= XkbInternAtom(buf,0);
	xkb->names->symbols= name;
	xkb->names->phys_symbols= name;
    }
    for (i=0,g=1;i<XkbNumKbdGroups;i++,g<<=1) {
	if (groupNames&g) {
	    if ((tmp=XkmGetCountedString(file,buf,100))<1)
		return -1;
	    nRead+= tmp;

	    if (!xkb->names)
		    continue;

	    if (buf[0]!='\0') {
		Atom name;
		name= XkbInternAtom(buf,0);
		xkb->names->groups[i]= name;
	    }
	    else xkb->names->groups[i]= None;
	}
    }
    if (XkbAllocServerMap(xkb,XkbAllServerInfoMask,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"server map",0);
	return -1;
    }
    if (XkbAllocClientMap(xkb,XkbAllClientInfoMask,0)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"client map",0);
	return -1;
    }
    if (XkbAllocControls(xkb,XkbAllControlsMask)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"controls",0);
	return -1;
    }
    if ((xkb->map==NULL)||(xkb->server==NULL))
	return -1;
    if (xkb->min_key_code<8)	xkb->min_key_code= minKC;
    if (xkb->max_key_code<8)	xkb->max_key_code= maxKC;
    if ((minKC>=8)&&(minKC<xkb->min_key_code))
	xkb->min_key_code= minKC;
    if ((maxKC>=8)&&(maxKC>xkb->max_key_code)) {
	_XkbLibError(_XkbErrBadValue,"keys in symbol map",maxKC);
	return -1;
    }
    for (i=minKC;i<=(int)maxKC;i++)  {
	Atom 		typeName[XkbNumKbdGroups];
	XkbKeyTypePtr	type[XkbNumKbdGroups];
	if ((tmp=fread(&wireMap,SIZEOF(xkmKeySymMapDesc),1,file))<1) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmSymbols",0);
	    return -1;
	}
	nRead+= tmp*SIZEOF(xkmKeySymMapDesc);
	memset((char *)typeName, 0, XkbNumKbdGroups*sizeof(Atom));
	memset((char *)type, 0, XkbNumKbdGroups*sizeof(XkbKeyTypePtr));
	if (wireMap.flags&XkmKeyHasTypes) {
	    register int g;
	    for (g=0;g<XkbNumKbdGroups;g++) {
		if ((wireMap.flags&(1<<g))&&
			((tmp=XkmGetCountedString(file,buf,100))>0)) {
		    typeName[g]= XkbInternAtom(buf,1);
		    nRead+= tmp;
		}
		type[g]=FindTypeForKey(xkb,typeName[g],wireMap.width,NULL);
		if (type[g]==NULL) {
		    _XkbLibError(_XkbErrMissingTypes,"ReadXkmSymbols",0);
		    return -1;
		}
		if (typeName[g]==type[g]->name)
		    xkb->server->explicit[i]|= (1<<g);
	    }
	}
	if (wireMap.flags&XkmRepeatingKey) {
	    xkb->ctrls->per_key_repeat[i/8]|= (1<<(i%8));
	    xkb->server->explicit[i]|= XkbExplicitAutoRepeatMask;
	}
	else if (wireMap.flags&XkmNonRepeatingKey) {
	    xkb->ctrls->per_key_repeat[i/8]&= ~(1<<(i%8));
	    xkb->server->explicit[i]|= XkbExplicitAutoRepeatMask;
	}
	xkb->map->modmap[i]= wireMap.modifier_map;
	if (XkbNumGroups(wireMap.num_groups)>0) {
	    KeySym	*sym;
	    int		 nSyms;

	    if (XkbNumGroups(wireMap.num_groups)>xkb->ctrls->num_groups)
		xkb->ctrls->num_groups= wireMap.num_groups;
	    nSyms= XkbNumGroups(wireMap.num_groups)*wireMap.width;
	    sym= XkbResizeKeySyms(xkb,i,nSyms);
	    if (!sym)
		return -1;
	    for (s=0;s<nSyms;s++) {
		*sym++= XkmGetCARD32(file,&nRead);
	    }
	    if (wireMap.flags&XkmKeyHasActions) {
		XkbAction *	act;
		act= XkbResizeKeyActions(xkb,i,nSyms);
		for (s=0;s<nSyms;s++,act++) {
		    tmp=fread(act,SIZEOF(xkmActionDesc),1,file);
		    nRead+= tmp*SIZEOF(xkmActionDesc);
		}
		xkb->server->explicit[i]|= XkbExplicitInterpretMask;
	    }
	}
	for (g=0;g<XkbNumGroups(wireMap.num_groups);g++) {
	    if (((xkb->server->explicit[i]&(1<<g))==0)||(type[g]==NULL)) {
		KeySym *tmpSyms;
		tmpSyms= XkbKeySymsPtr(xkb,i)+(wireMap.width*g);
		type[g]= FindTypeForKey(xkb,None,wireMap.width,tmpSyms);
	    }
	    xkb->map->key_sym_map[i].kt_index[g]= type[g]-(&xkb->map->types[0]);
	}
	xkb->map->key_sym_map[i].group_info= wireMap.num_groups;
	xkb->map->key_sym_map[i].width= wireMap.width;
	if (wireMap.flags&XkmKeyHasBehavior) {
	    xkmBehaviorDesc	b;
	    tmp= fread(&b,SIZEOF(xkmBehaviorDesc),1,file);
	    nRead+= tmp*SIZEOF(xkmBehaviorDesc);
	    xkb->server->behaviors[i].type= b.type;
	    xkb->server->behaviors[i].data= b.data;
	    xkb->server->explicit[i]|= XkbExplicitBehaviorMask;
	}
    }
    if (totalVModMaps>0) {
	xkmVModMapDesc	v;
	for (i=0;i<totalVModMaps;i++) {
	    tmp= fread(&v,SIZEOF(xkmVModMapDesc),1,file);
	    nRead+= tmp*SIZEOF(xkmVModMapDesc);
	    if (tmp>0)
		xkb->server->vmodmap[v.key]= v.vmods;
	}
    }
    return nRead;
}

static int
ReadXkmGeomDoodad(
    FILE *		file,
    XkbGeometryPtr	geom,
    XkbSectionPtr	section)
{
XkbDoodadPtr	doodad;
xkmDoodadDesc	doodadWire;
char		buf[100];
unsigned	tmp;
int		nRead=0;

    nRead+= XkmGetCountedString(file,buf,100);
    tmp= fread(&doodadWire,SIZEOF(xkmDoodadDesc),1,file);
    nRead+= SIZEOF(xkmDoodadDesc)*tmp;
    doodad= XkbAddGeomDoodad(geom,section,XkbInternAtom(buf,FALSE));
    if (!doodad)
	return nRead;
    doodad->any.type= doodadWire.any.type;
    doodad->any.priority= doodadWire.any.priority;
    doodad->any.top= doodadWire.any.top;
    doodad->any.left= doodadWire.any.left;
    switch (doodadWire.any.type) {
	case XkbOutlineDoodad:
	case XkbSolidDoodad:
	    doodad->shape.angle= doodadWire.shape.angle;
	    doodad->shape.color_ndx= doodadWire.shape.color_ndx;
	    doodad->shape.shape_ndx= doodadWire.shape.shape_ndx;
	    break;
	case XkbTextDoodad:
	    doodad->text.angle= doodadWire.text.angle;
	    doodad->text.width= doodadWire.text.width;
	    doodad->text.height= doodadWire.text.height;
	    doodad->text.color_ndx= doodadWire.text.color_ndx;
	    nRead+= XkmGetCountedString(file,buf,100);
	    doodad->text.text= _XkbDupString(buf);
	    nRead+= XkmGetCountedString(file,buf,100);
	    doodad->text.font= _XkbDupString(buf);
	    break;
	case XkbIndicatorDoodad:
	    doodad->indicator.shape_ndx= doodadWire.indicator.shape_ndx;
	    doodad->indicator.on_color_ndx= doodadWire.indicator.on_color_ndx;
	    doodad->indicator.off_color_ndx= doodadWire.indicator.off_color_ndx;
	    break;
	case XkbLogoDoodad:
	    doodad->logo.angle= doodadWire.logo.angle;
	    doodad->logo.color_ndx= doodadWire.logo.color_ndx;
	    doodad->logo.shape_ndx= doodadWire.logo.shape_ndx;
	    nRead+= XkmGetCountedString(file,buf,100);
	    doodad->logo.logo_name= _XkbDupString(buf);
	    break;
	default:
	    /* report error? */
	    return nRead;
    }
    return nRead;
}

static int
ReadXkmGeomOverlay(	FILE *		file,
			XkbGeometryPtr	geom,
			XkbSectionPtr	section)
{
char 			buf[100];
unsigned		tmp;
int			nRead=0;
XkbOverlayPtr		ol;
XkbOverlayRowPtr	row;
xkmOverlayDesc 		olWire;
xkmOverlayRowDesc	rowWire;
register int		r;

    nRead+= XkmGetCountedString(file,buf,100);
    tmp= fread(&olWire,SIZEOF(xkmOverlayDesc),1,file);
    nRead+= tmp*SIZEOF(xkmOverlayDesc);
    ol= XkbAddGeomOverlay(section,XkbInternAtom(buf,FALSE),
    							olWire.num_rows);
    if (!ol)
	return nRead;
    for (r=0;r<olWire.num_rows;r++)  {
    	int			k;
	xkmOverlayKeyDesc	keyWire;
	tmp= fread(&rowWire,SIZEOF(xkmOverlayRowDesc),1,file);
	nRead+= tmp*SIZEOF(xkmOverlayRowDesc);
	row= XkbAddGeomOverlayRow(ol,rowWire.row_under,rowWire.num_keys);
	if (!row) {
	    _XkbLibError(_XkbErrBadAlloc,"ReadXkmGeomOverlay",0);
	   return nRead;
	}
	for (k=0;k<rowWire.num_keys;k++) {
	    tmp= fread(&keyWire,SIZEOF(xkmOverlayKeyDesc),1,file);
	    nRead+= tmp*SIZEOF(xkmOverlayKeyDesc);
	    memcpy(row->keys[k].over.name,keyWire.over,XkbKeyNameLength);
	    memcpy(row->keys[k].under.name,keyWire.under,XkbKeyNameLength);
	}
	row->num_keys= rowWire.num_keys;
    }
    return nRead;
}

static int
ReadXkmGeomSection(	FILE *		file,
			XkbGeometryPtr	geom)
{
register int	i;
XkbSectionPtr	section;
xkmSectionDesc	sectionWire;
unsigned	tmp;
int		nRead= 0;
char		buf[100];
Atom		nameAtom;

    nRead+= XkmGetCountedString(file,buf,100);
    nameAtom= XkbInternAtom(buf,FALSE);
    tmp= fread(&sectionWire,SIZEOF(xkmSectionDesc),1,file);
    nRead+= SIZEOF(xkmSectionDesc)*tmp;
    section= XkbAddGeomSection(geom,nameAtom,sectionWire.num_rows,
			 			sectionWire.num_doodads,
			 			sectionWire.num_overlays);
    if (!section) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmGeomSection",0);
	return nRead;
    }
    section->top= sectionWire.top;
    section->left= sectionWire.left;
    section->width= sectionWire.width;
    section->height= sectionWire.height;
    section->angle= sectionWire.angle;
    section->priority= sectionWire.priority;
    if (sectionWire.num_rows>0) {
	register int	k;
	XkbRowPtr	row;
	xkmRowDesc	rowWire;
	XkbKeyPtr	key;
	xkmKeyDesc	keyWire;

	for (i=0;i<sectionWire.num_rows;i++) {
	    tmp= fread(&rowWire,SIZEOF(xkmRowDesc),1,file);
	    nRead+= SIZEOF(xkmRowDesc)*tmp;
	    row= XkbAddGeomRow(section,rowWire.num_keys);
	    if (!row) {
		_XkbLibError(_XkbErrBadAlloc,"ReadXkmKeycodes",0);
		return nRead;
	    }
	    row->top= rowWire.top;
	    row->left= rowWire.left;
	    row->vertical= rowWire.vertical;
	    for (k=0;k<rowWire.num_keys;k++) {
		tmp= fread(&keyWire,SIZEOF(xkmKeyDesc),1,file);
		nRead+= SIZEOF(xkmKeyDesc)*tmp;
		key= XkbAddGeomKey(row);
		if (!key) {
		    _XkbLibError(_XkbErrBadAlloc,"ReadXkmGeomSection",0);
		    return nRead;
		}
		memcpy(key->name.name,keyWire.name,XkbKeyNameLength);
		key->gap= keyWire.gap;
		key->shape_ndx= keyWire.shape_ndx;
		key->color_ndx= keyWire.color_ndx;
	    }
	}
    }
    if (sectionWire.num_doodads>0) {
	for (i=0;i<sectionWire.num_doodads;i++) {
	    tmp= ReadXkmGeomDoodad(file,geom,section);
	    nRead+= tmp;
	    if (tmp<1)
		return nRead;
	}
    }
    if (sectionWire.num_overlays>0) {
	for (i=0;i<sectionWire.num_overlays;i++) {
	    tmp= ReadXkmGeomOverlay(file,geom,section);
	    nRead+= tmp;
	    if (tmp<1)
		return nRead;
	}
    }
    return nRead;
}

static int
ReadXkmGeometry(FILE *file,XkbDescPtr xkb)
{
register int		i;
char 			buf[100];
unsigned		tmp;
int			nRead= 0;
xkmGeometryDesc		wireGeom;
XkbGeometryPtr		geom;
XkbGeometrySizesRec	sizes;

    nRead+= XkmGetCountedString(file,buf,100);
    tmp= fread(&wireGeom,SIZEOF(xkmGeometryDesc),1,file);
    nRead+= tmp*SIZEOF(xkmGeometryDesc);
    sizes.which= XkbGeomAllMask;
    sizes.num_properties= wireGeom.num_properties;
    sizes.num_colors= wireGeom.num_colors;
    sizes.num_shapes= wireGeom.num_shapes;
    sizes.num_sections= wireGeom.num_sections;
    sizes.num_doodads= wireGeom.num_doodads;
    sizes.num_key_aliases= wireGeom.num_key_aliases;
    if (XkbAllocGeometry(xkb,&sizes)!=Success) {
	_XkbLibError(_XkbErrBadAlloc,"ReadXkmGeometry",0);
	return nRead;
    }
    geom= xkb->geom;
    geom->name= XkbInternAtom(buf,FALSE);
    geom->width_mm= wireGeom.width_mm;
    geom->height_mm= wireGeom.height_mm;
    nRead+= XkmGetCountedString(file,buf,100);
    geom->label_font= _XkbDupString(buf);
    if (wireGeom.num_properties>0) {
	char val[1024];
	for (i=0;i<wireGeom.num_properties;i++) {
	    nRead+= XkmGetCountedString(file,buf,100);
	    nRead+= XkmGetCountedString(file,val,1024);
	    if (XkbAddGeomProperty(geom,buf,val)==NULL) {
		_XkbLibError(_XkbErrBadAlloc,"ReadXkmGeometry",0);
		return nRead;
	    }
	}
    }
    if (wireGeom.num_colors>0) {
	for (i=0;i<wireGeom.num_colors;i++) {
	    nRead+= XkmGetCountedString(file,buf,100);
	    if (XkbAddGeomColor(geom,buf,i)==NULL) {
		_XkbLibError(_XkbErrBadAlloc,"ReadXkmGeometry",0);
		return nRead;
	    }
	}
    }
    geom->base_color= &geom->colors[wireGeom.base_color_ndx];
    geom->label_color= &geom->colors[wireGeom.label_color_ndx];
    if (wireGeom.num_shapes>0) {
	XkbShapePtr	shape;
	xkmShapeDesc	shapeWire;
	Atom		nameAtom;
	for (i=0;i<wireGeom.num_shapes;i++) {
	    register int 	n;
	    XkbOutlinePtr	ol;
	    xkmOutlineDesc	olWire;
	    nRead+= XkmGetCountedString(file,buf,100);
	    nameAtom= XkbInternAtom(buf,FALSE);
	    tmp= fread(&shapeWire,SIZEOF(xkmShapeDesc),1,file);
	    nRead+= tmp*SIZEOF(xkmShapeDesc);
	    shape= XkbAddGeomShape(geom,nameAtom,shapeWire.num_outlines);
	    if (!shape) {
		_XkbLibError(_XkbErrBadAlloc,"ReadXkmGeometry",0);
		return nRead;
	    }
	    for (n=0;n<shapeWire.num_outlines;n++) {
		register int	p;
		xkmPointDesc	ptWire;
		tmp= fread(&olWire,SIZEOF(xkmOutlineDesc),1,file);
		nRead+= tmp*SIZEOF(xkmOutlineDesc);
		ol= XkbAddGeomOutline(shape,olWire.num_points);
		if (!ol) {
		    _XkbLibError(_XkbErrBadAlloc,"ReadXkmGeometry",0);
		    return nRead;
		}
		ol->num_points= olWire.num_points;
		ol->corner_radius= olWire.corner_radius;
		for (p=0;p<olWire.num_points;p++) {
		    tmp= fread(&ptWire,SIZEOF(xkmPointDesc),1,file);
		    nRead+= tmp*SIZEOF(xkmPointDesc);
		    ol->points[p].x= ptWire.x;
		    ol->points[p].y= ptWire.y;
		    if (ptWire.x<shape->bounds.x1) shape->bounds.x1= ptWire.x;
		    if (ptWire.x>shape->bounds.x2) shape->bounds.x2= ptWire.x;
		    if (ptWire.y<shape->bounds.y1) shape->bounds.y1= ptWire.y;
		    if (ptWire.y>shape->bounds.y2) shape->bounds.y2= ptWire.y;
		}
	    }
	    if (shapeWire.primary_ndx!=XkbNoShape)
		shape->primary= &shape->outlines[shapeWire.primary_ndx];
	    if (shapeWire.approx_ndx!=XkbNoShape)
		shape->approx= &shape->outlines[shapeWire.approx_ndx];
	}
    }
    if (wireGeom.num_sections>0) {
	for (i=0;i<wireGeom.num_sections;i++) {
	    tmp= ReadXkmGeomSection(file,geom);
	    nRead+= tmp;
	    if (tmp==0)
		return nRead;
	}
    }
    if (wireGeom.num_doodads>0) {
	for (i=0;i<wireGeom.num_doodads;i++) {
	    tmp= ReadXkmGeomDoodad(file,geom,NULL);
	    nRead+= tmp;
	    if (tmp==0)
		return nRead;
	}
    }
    if ((wireGeom.num_key_aliases>0)&&(geom->key_aliases)) {
	int sz= XkbKeyNameLength*2;
	int num= wireGeom.num_key_aliases;
	if (fread(geom->key_aliases,sz,num,file)!=num) {
	    _XkbLibError(_XkbErrBadLength,"ReadXkmGeometry",0);
	    return -1;
	}
	nRead+= (num*sz);
	geom->num_key_aliases= num;
    }
    return nRead;
}

Bool
XkmProbe(FILE *file)
{
unsigned hdr,tmp;
int	 nRead=0;

    hdr= (('x'<<24)|('k'<<16)|('m'<<8)|XkmFileVersion);
    tmp= XkmGetCARD32(file,&nRead);
    if (tmp!=hdr) {
	if ((tmp&(~0xff))==(hdr&(~0xff))) {
	    _XkbLibError(_XkbErrBadFileVersion,"XkmProbe",tmp&0xff);
	}
	return 0;
    }
    return 1;
}

static Bool
XkmReadTOC(FILE *file,xkmFileInfo* file_info,int max_toc,xkmSectionInfo *toc)
{
unsigned hdr,tmp;
int	nRead=0;
unsigned i,size_toc;

    hdr= (('x'<<24)|('k'<<16)|('m'<<8)|XkmFileVersion);
    tmp= XkmGetCARD32(file,&nRead);
    if (tmp!=hdr) {
	if ((tmp&(~0xff))==(hdr&(~0xff))) {
	    _XkbLibError(_XkbErrBadFileVersion,"XkmReadTOC",tmp&0xff);
	}
	else {
	    _XkbLibError(_XkbErrBadFileType,"XkmReadTOC",tmp);
	}
	return 0;
    }
    fread(file_info,SIZEOF(xkmFileInfo),1,file);
    size_toc= file_info->num_toc;
    if (size_toc>max_toc) {
	DebugF("Warning! Too many TOC entries; last %d ignored\n",
							size_toc-max_toc);
	size_toc= max_toc;
    }
    for (i=0;i<size_toc;i++) {
	fread(&toc[i],SIZEOF(xkmSectionInfo),1,file);
    }
    return 1;
}

/***====================================================================***/

#define	MAX_TOC	16
unsigned
XkmReadFile(FILE *file,unsigned need,unsigned want,XkbDescPtr *xkb)
{
register unsigned	i;
xkmSectionInfo		toc[MAX_TOC],tmpTOC;
xkmFileInfo		fileInfo;
unsigned		tmp,nRead=0;
unsigned		which= need|want;

    if (!XkmReadTOC(file,&fileInfo,MAX_TOC,toc))
	return which;
    if ((fileInfo.present&need)!=need) {
       _XkbLibError(_XkbErrIllegalContents,"XkmReadFile",
       						need&(~fileInfo.present));
       return which;
    }
    if (*xkb==NULL)
	*xkb= XkbAllocKeyboard();
    for (i=0;i<fileInfo.num_toc;i++) {
	fseek(file,toc[i].offset,SEEK_SET);
	tmp= fread(&tmpTOC,SIZEOF(xkmSectionInfo),1,file);
	nRead= tmp*SIZEOF(xkmSectionInfo);
	if ((tmpTOC.type!=toc[i].type)||(tmpTOC.format!=toc[i].format)||
	    (tmpTOC.size!=toc[i].size)||(tmpTOC.offset!=toc[i].offset)) {
	    return which;
	}
	if ((which&(1<<tmpTOC.type))==0) {
	    continue;
	}
	switch (tmpTOC.type) {
	    case XkmVirtualModsIndex:
		tmp= ReadXkmVirtualMods(file,*xkb,NULL);
		break;
	    case XkmTypesIndex:
		tmp= ReadXkmKeyTypes(file,*xkb,NULL);
		break;
	    case XkmCompatMapIndex:
		tmp= ReadXkmCompatMap(file,*xkb,NULL);
		break;
	    case XkmKeyNamesIndex:
		tmp= ReadXkmKeycodes(file,*xkb,NULL);
		break;
	    case XkmIndicatorsIndex:
		tmp= ReadXkmIndicators(file,*xkb,NULL);
		break;
	    case XkmSymbolsIndex:
		tmp= ReadXkmSymbols(file,*xkb);
		break;
	    case XkmGeometryIndex:
		tmp= ReadXkmGeometry(file,*xkb);
		break;
	    default:
		_XkbLibError(_XkbErrBadImplementation,
				XkbConfigText(tmpTOC.type,XkbMessage),0);
		tmp= 0;
		break;
	}
	if (tmp>0) {
	    nRead+= tmp;
	    which&= ~(1<<toc[i].type);
	    (*xkb)->defined|= (1<<toc[i].type);
	}
	if (nRead!=tmpTOC.size) {
	    _XkbLibError(_XkbErrBadLength,XkbConfigText(tmpTOC.type,XkbMessage),
	    						nRead-tmpTOC.size);
	}
    }
    return which;
}