Imported nxagent-3.2.0-7.tar.gznxagent/3.2.0-7

Summary: Imported nxagent-3.2.0-7.tar.gz
Keywords:

Imported nxagent-3.2.0-7.tar.gz
into Git repository

11 files changed, 125 insertions, 1278 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c
index 06dabddaa..f51a8bce9 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c
@@ -69,6 +69,17 @@
 #undef  DEBUG
 #undef  TEST
 
+#else
+
+#include "picturestr.h"
+#include "glyphstr.h"
+
+#endif
+
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif !defined(UINT32_MAX)
+#define UINT32_MAX 0xffffffffU
 #endif
 
 /*
@@ -401,8 +412,12 @@ AllocateGlyph (xGlyphInfo *gi, int fdepth)
 {
     int		size;
     GlyphPtr	glyph;
-
-    size = gi->height * PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    size_t	     padded_width;
+    
+    padded_width = PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    if (gi->height && padded_width > (UINT32_MAX - sizeof(GlyphRec))/gi->height)
+	return 0;
+    size = gi->height * padded_width;
     glyph = (GlyphPtr) xalloc (size + sizeof (GlyphRec));
     if (!glyph)
 	return 0;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.NX.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.NX.original
index 06dabddaa..f51a8bce9 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.NX.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.NX.original
@@ -69,6 +69,17 @@
 #undef  DEBUG
 #undef  TEST
 
+#else
+
+#include "picturestr.h"
+#include "glyphstr.h"
+
+#endif
+
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif !defined(UINT32_MAX)
+#define UINT32_MAX 0xffffffffU
 #endif
 
 /*
@@ -401,8 +412,12 @@ AllocateGlyph (xGlyphInfo *gi, int fdepth)
 {
     int		size;
     GlyphPtr	glyph;
-
-    size = gi->height * PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    size_t	     padded_width;
+    
+    padded_width = PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    if (gi->height && padded_width > (UINT32_MAX - sizeof(GlyphRec))/gi->height)
+	return 0;
+    size = gi->height * padded_width;
     glyph = (GlyphPtr) xalloc (size + sizeof (GlyphRec));
     if (!glyph)
 	return 0;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.X.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.X.original
index 45c5dd975..9f4d1c87b 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.X.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyph.c.X.original
@@ -43,6 +43,12 @@
 #include "picturestr.h"
 #include "glyphstr.h"
 
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif !defined(UINT32_MAX)
+#define UINT32_MAX 0xffffffffU
+#endif
+
 /*
  * From Knuth -- a good choice for hash/rehash values is p, p-2 where
  * p and p-2 are both prime.  These tables are sized to have an extra 10%
@@ -334,8 +340,12 @@ AllocateGlyph (xGlyphInfo *gi, int fdepth)
 {
     int		size;
     GlyphPtr	glyph;
-
-    size = gi->height * PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    size_t	     padded_width;
+    
+    padded_width = PixmapBytePad (gi->width, glyphDepths[fdepth]);
+    if (gi->height && padded_width > (UINT32_MAX - sizeof(GlyphRec))/gi->height)
+	return 0;
+    size = gi->height * padded_width;
     glyph = (GlyphPtr) xalloc (size + sizeof (GlyphRec));
     if (!glyph)
 	return 0;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c
index 00c55cde7..de2df855f 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c
@@ -1893,6 +1893,8 @@ ProcRenderCreateCursor (ClientPtr client)
     pScreen = pSrc->pDrawable->pScreen;
     width = pSrc->pDrawable->width;
     height = pSrc->pDrawable->height;
+    if (height && width > UINT32_MAX/(height*sizeof(CARD32)))
+	return BadAlloc;
     if ( stuff->x > width 
       || stuff->y > height )
 	return (BadMatch);
@@ -2353,6 +2355,8 @@ static int ProcRenderCreateLinearGradient (ClientPtr client)
     LEGAL_NEW_RESOURCE(stuff->pid, client);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -2955,18 +2959,18 @@ SProcRenderCreateSolidFill(ClientPtr client)
     return (*ProcRenderVector[stuff->renderReqType]) (client);
 }
 
-static void swapStops(void *stuff, int n)
+static void swapStops(void *stuff, int num)
 {
-    int i;
+    int i, n;
     CARD32 *stops;
     CARD16 *colors;
     stops = (CARD32 *)(stuff);
-    for (i = 0; i < n; ++i) {
+    for (i = 0; i < num; ++i) {
         swapl(stops, n);
         ++stops;
     }
     colors = (CARD16 *)(stops);
-    for (i = 0; i < 4*n; ++i) {
+    for (i = 0; i < 4*num; ++i) {
         swaps(stops, n);
         ++stops;
     }
@@ -2989,6 +2993,8 @@ SProcRenderCreateLinearGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -3016,6 +3022,8 @@ SProcRenderCreateRadialGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateRadialGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -3040,6 +3048,8 @@ SProcRenderCreateConicalGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateConicalGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.NX.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.NX.original
index 00c55cde7..de2df855f 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.NX.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.NX.original
@@ -1893,6 +1893,8 @@ ProcRenderCreateCursor (ClientPtr client)
     pScreen = pSrc->pDrawable->pScreen;
     width = pSrc->pDrawable->width;
     height = pSrc->pDrawable->height;
+    if (height && width > UINT32_MAX/(height*sizeof(CARD32)))
+	return BadAlloc;
     if ( stuff->x > width 
       || stuff->y > height )
 	return (BadMatch);
@@ -2353,6 +2355,8 @@ static int ProcRenderCreateLinearGradient (ClientPtr client)
     LEGAL_NEW_RESOURCE(stuff->pid, client);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -2955,18 +2959,18 @@ SProcRenderCreateSolidFill(ClientPtr client)
     return (*ProcRenderVector[stuff->renderReqType]) (client);
 }
 
-static void swapStops(void *stuff, int n)
+static void swapStops(void *stuff, int num)
 {
-    int i;
+    int i, n;
     CARD32 *stops;
     CARD16 *colors;
     stops = (CARD32 *)(stuff);
-    for (i = 0; i < n; ++i) {
+    for (i = 0; i < num; ++i) {
         swapl(stops, n);
         ++stops;
     }
     colors = (CARD16 *)(stops);
-    for (i = 0; i < 4*n; ++i) {
+    for (i = 0; i < 4*num; ++i) {
         swaps(stops, n);
         ++stops;
     }
@@ -2989,6 +2993,8 @@ SProcRenderCreateLinearGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -3016,6 +3022,8 @@ SProcRenderCreateRadialGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateRadialGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -3040,6 +3048,8 @@ SProcRenderCreateConicalGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateConicalGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.X.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.X.original
index d2759ab10..d25d49756 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.X.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXrender.c.X.original
@@ -1505,6 +1505,8 @@ ProcRenderCreateCursor (ClientPtr client)
     pScreen = pSrc->pDrawable->pScreen;
     width = pSrc->pDrawable->width;
     height = pSrc->pDrawable->height;
+    if (height && width > UINT32_MAX/(height*sizeof(CARD32)))
+	return BadAlloc;
     if ( stuff->x > width 
       || stuff->y > height )
 	return (BadMatch);
@@ -1918,6 +1920,8 @@ static int ProcRenderCreateLinearGradient (ClientPtr client)
     LEGAL_NEW_RESOURCE(stuff->pid, client);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -2489,18 +2493,18 @@ SProcRenderCreateSolidFill(ClientPtr client)
     return (*ProcRenderVector[stuff->renderReqType]) (client);
 }
 
-static void swapStops(void *stuff, int n)
+static void swapStops(void *stuff, int num)
 {
-    int i;
+    int i, n;
     CARD32 *stops;
     CARD16 *colors;
     stops = (CARD32 *)(stuff);
-    for (i = 0; i < n; ++i) {
+    for (i = 0; i < num; ++i) {
         swapl(stops, n);
         ++stops;
     }
     colors = (CARD16 *)(stops);
-    for (i = 0; i < 4*n; ++i) {
+    for (i = 0; i < 4*num; ++i) {
         swaps(stops, n);
         ++stops;
     }
@@ -2523,6 +2527,8 @@ SProcRenderCreateLinearGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateLinearGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -2550,6 +2556,8 @@ SProcRenderCreateRadialGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateRadialGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
@@ -2574,6 +2582,8 @@ SProcRenderCreateConicalGradient (ClientPtr client)
     swapl(&stuff->nStops, n);
 
     len = (client->req_len << 2) - sizeof(xRenderCreateConicalGradientReq);
+    if (stuff->nStops > UINT32_MAX/(sizeof(xFixed) + sizeof(xRenderColor)))
+	return BadLength;
     if (len != stuff->nStops*(sizeof(xFixed) + sizeof(xRenderColor)))
         return BadLength;
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c.NX.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c.NX.original
index 7dd021a6e..91e03cb0e 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c.NX.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c.NX.original
@@ -194,10 +194,6 @@ static DeleteType *DeleteFuncs = (DeleteType *)NULL;
 
 Atom * ResourceNames = NULL;
 
-#ifdef NXAGENT_SERVER
-static int nxagentResChangedFlag = 0;
-#endif
-
 void RegisterResourceName (RESTYPE type, char *name)
 {
     ResourceNames[type & TypeMask] =  MakeAtom(name, strlen(name), TRUE);
@@ -205,6 +201,10 @@ void RegisterResourceName (RESTYPE type, char *name)
 
 #endif
 
+#ifdef NXAGENT_SERVER
+static int nxagentResChangedFlag = 0;
+#endif
+
 RESTYPE
 CreateNewResourceType(DeleteType deleteFunc)
 {
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c~ b/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c~
deleted file mode 100644
index 7dd021a6e..000000000
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXresource.c~
+++ /dev/null
@@ -1,1250 +0,0 @@
-/**************************************************************************/
-/*                                                                        */
-/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
-/*                                                                        */
-/* NXAGENT, NX protocol compression and NX extensions to this software    */
-/* are copyright of NoMachine. Redistribution and use of the present      */
-/* software is allowed according to terms specified in the file LICENSE   */
-/* which comes in the source distribution.                                */
-/*                                                                        */
-/* Check http://www.nomachine.com/licensing.html for applicability.       */
-/*                                                                        */
-/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
-/*                                                                        */
-/* All rights reserved.                                                   */
-/*                                                                        */
-/**************************************************************************/
-
-/************************************************************
-
-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.
-
-********************************************************/
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-/* $Xorg: resource.c,v 1.5 2001/02/09 02:04:40 xorgcvs Exp $ */
-/* $XdotOrg: xc/programs/Xserver/dix/resource.c,v 1.8 2005/07/03 08:53:38 daniels Exp $ */
-/* $TOG: resource.c /main/41 1998/02/09 14:20:31 kaleb $ */
-
-/*	Routines to manage various kinds of resources:
- *
- *	CreateNewResourceType, CreateNewResourceClass, InitClientResources,
- *	FakeClientID, AddResource, FreeResource, FreeClientResources,
- *	FreeAllResources, LookupIDByType, LookupIDByClass, GetXIDRange
- */
-
-/* 
- *      A resource ID is a 32 bit quantity, the upper 2 bits of which are
- *	off-limits for client-visible resources.  The next 8 bits are
- *      used as client ID, and the low 22 bits come from the client.
- *	A resource ID is "hashed" by extracting and xoring subfields
- *      (varying with the size of the hash table).
- *
- *      It is sometimes necessary for the server to create an ID that looks
- *      like it belongs to a client.  This ID, however,  must not be one
- *      the client actually can create, or we have the potential for conflict.
- *      The 31st bit of the ID is reserved for the server's use for this
- *      purpose.  By setting CLIENT_ID(id) to the client, the SERVER_BIT to
- *      1, and an otherwise arbitrary ID in the low 22 bits, we can create a
- *      resource "owned" by the client.
- */
-/* $XFree86: xc/programs/Xserver/dix/resource.c,v 3.13 2003/09/24 02:43:13 dawes Exp $ */
-
-#define NEED_EVENTS
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "misc.h"
-#include "os.h"
-#include "resource.h"
-#include "dixstruct.h" 
-#include "opaque.h"
-#include "windowstr.h"
-#include "dixfont.h"
-#include "colormap.h"
-#include "inputstr.h"
-#include "dixevents.h"
-#include "dixgrabs.h"
-#include "cursor.h"
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-#include <assert.h>
-
-#ifdef NXAGENT_SERVER
-
-#include "Agent.h"
-#include "Font.h"
-#include "Pixmaps.h"
-#include "GCs.h"
-
-#define PANIC
-#define WARNING
-#undef  TEST
-#undef  DEBUG
-
-#endif
-
-static void RebuildTable(
-    int /*client*/
-);
-
-#define SERVER_MINID 32
-
-#define INITBUCKETS 64
-#define INITHASHSIZE 6
-#define MAXHASHSIZE 11
-
-typedef struct _Resource {
-    struct _Resource	*next;
-    XID			id;
-    RESTYPE		type;
-    pointer		value;
-} ResourceRec, *ResourcePtr;
-#define NullResource ((ResourcePtr)NULL)
-
-typedef struct _ClientResource {
-    ResourcePtr *resources;
-    int		elements;
-    int		buckets;
-    int		hashsize;	/* log(2)(buckets) */
-    XID		fakeID;
-    XID		endFakeID;
-    XID		expectID;
-} ClientResourceRec;
-
-RESTYPE lastResourceType;
-static RESTYPE lastResourceClass;
-RESTYPE TypeMask;
-
-static DeleteType *DeleteFuncs = (DeleteType *)NULL;
-
-#ifdef XResExtension
-
-Atom * ResourceNames = NULL;
-
-#ifdef NXAGENT_SERVER
-static int nxagentResChangedFlag = 0;
-#endif
-
-void RegisterResourceName (RESTYPE type, char *name)
-{
-    ResourceNames[type & TypeMask] =  MakeAtom(name, strlen(name), TRUE);
-}
-
-#endif
-
-RESTYPE
-CreateNewResourceType(DeleteType deleteFunc)
-{
-    RESTYPE next = lastResourceType + 1;
-    DeleteType *funcs;
-
-    if (next & lastResourceClass)
-	return 0;
-    funcs = (DeleteType *)xrealloc(DeleteFuncs,
-				   (next + 1) * sizeof(DeleteType));
-    if (!funcs)
-	return 0;
-
-#ifdef XResExtension
-    {
-       Atom *newnames;
-       newnames = xrealloc(ResourceNames, (next + 1) * sizeof(Atom));
-       if(!newnames)
-           return 0;
-       ResourceNames = newnames;
-       ResourceNames[next] = 0;
-    }
-#endif
-
-    lastResourceType = next;
-    DeleteFuncs = funcs;
-    DeleteFuncs[next] = deleteFunc;
-    return next;
-}
-
-RESTYPE
-CreateNewResourceClass()
-{
-    RESTYPE next = lastResourceClass >> 1;
-
-    if (next & lastResourceType)
-	return 0;
-    lastResourceClass = next;
-    TypeMask = next - 1;
-    return next;
-}
-
-ClientResourceRec clientTable[MAXCLIENTS];
-
-/*****************
- * InitClientResources
- *    When a new client is created, call this to allocate space
- *    in resource table
- *****************/
-
-Bool
-InitClientResources(ClientPtr client)
-{
-    register int i, j;
- 
-    if (client == serverClient)
-    {
-	lastResourceType = RT_LASTPREDEF;
-	lastResourceClass = RC_LASTPREDEF;
-	TypeMask = RC_LASTPREDEF - 1;
-	if (DeleteFuncs)
-	    xfree(DeleteFuncs);
-	DeleteFuncs = (DeleteType *)xalloc((lastResourceType + 1) *
-					   sizeof(DeleteType));
-	if (!DeleteFuncs)
-	    return FALSE;
-	DeleteFuncs[RT_NONE & TypeMask] = (DeleteType)NoopDDA;
-	DeleteFuncs[RT_WINDOW & TypeMask] = DeleteWindow;
-	DeleteFuncs[RT_PIXMAP & TypeMask] = dixDestroyPixmap;
-	DeleteFuncs[RT_GC & TypeMask] = FreeGC;
-	DeleteFuncs[RT_FONT & TypeMask] = CloseFont;
-	DeleteFuncs[RT_CURSOR & TypeMask] = FreeCursor;
-	DeleteFuncs[RT_COLORMAP & TypeMask] = FreeColormap;
-	DeleteFuncs[RT_CMAPENTRY & TypeMask] = FreeClientPixels;
-	DeleteFuncs[RT_OTHERCLIENT & TypeMask] = OtherClientGone;
-	DeleteFuncs[RT_PASSIVEGRAB & TypeMask] = DeletePassiveGrab;
-
-#ifdef XResExtension
-        if(ResourceNames)
-            xfree(ResourceNames);
-        ResourceNames = xalloc((lastResourceType + 1) * sizeof(Atom));
-        if(!ResourceNames)
-           return FALSE;
-#endif
-    }
-    clientTable[i = client->index].resources =
-	(ResourcePtr *)xalloc(INITBUCKETS*sizeof(ResourcePtr));
-    if (!clientTable[i].resources)
-	return FALSE;
-    clientTable[i].buckets = INITBUCKETS;
-    clientTable[i].elements = 0;
-    clientTable[i].hashsize = INITHASHSIZE;
-    /* Many IDs allocated from the server client are visible to clients,
-     * so we don't use the SERVER_BIT for them, but we have to start
-     * past the magic value constants used in the protocol.  For normal
-     * clients, we can start from zero, with SERVER_BIT set.
-     */
-    clientTable[i].fakeID = client->clientAsMask |
-			    (client->index ? SERVER_BIT : SERVER_MINID);
-    clientTable[i].endFakeID = (clientTable[i].fakeID | RESOURCE_ID_MASK) + 1;
-    clientTable[i].expectID = client->clientAsMask;
-    for (j=0; j<INITBUCKETS; j++) 
-    {
-        clientTable[i].resources[j] = NullResource;
-    }
-    return TRUE;
-}
-
-
-static int
-Hash(int client, register XID id)
-{
-    id &= RESOURCE_ID_MASK;
-    switch (clientTable[client].hashsize)
-    {
-	case 6:
-	    return ((int)(0x03F & (id ^ (id>>6) ^ (id>>12))));
-	case 7:
-	    return ((int)(0x07F & (id ^ (id>>7) ^ (id>>13))));
-	case 8:
-	    return ((int)(0x0FF & (id ^ (id>>8) ^ (id>>16))));
-	case 9:
-	    return ((int)(0x1FF & (id ^ (id>>9))));
-	case 10:
-	    return ((int)(0x3FF & (id ^ (id>>10))));
-	case 11:
-	    return ((int)(0x7FF & (id ^ (id>>11))));
-    }
-    return -1;
-}
-
-static XID
-AvailableID(
-    register int client,
-    register XID id,
-    register XID maxid,
-    register XID goodid)
-{
-    register ResourcePtr res;
-
-    if ((goodid >= id) && (goodid <= maxid))
-	return goodid;
-    for (; id <= maxid; id++)
-    {
-	res = clientTable[client].resources[Hash(client, id)];
-	while (res && (res->id != id))
-	    res = res->next;
-	if (!res)
-	    return id;
-    }
-    return 0;
-}
-
-void
-GetXIDRange(int client, Bool server, XID *minp, XID *maxp)
-{
-    register XID id, maxid;
-    register ResourcePtr *resp;
-    register ResourcePtr res;
-    register int i;
-    XID goodid;
-
-    id = (Mask)client << CLIENTOFFSET;
-    if (server)
-	id |= client ? SERVER_BIT : SERVER_MINID;
-    maxid = id | RESOURCE_ID_MASK;
-    goodid = 0;
-    for (resp = clientTable[client].resources, i = clientTable[client].buckets;
-	 --i >= 0;)
-    {
-	for (res = *resp++; res; res = res->next)
-	{
-	    if ((res->id < id) || (res->id > maxid))
-		continue;
-	    if (((res->id - id) >= (maxid - res->id)) ?
-		(goodid = AvailableID(client, id, res->id - 1, goodid)) :
-		!(goodid = AvailableID(client, res->id + 1, maxid, goodid)))
-		maxid = res->id - 1;
-	    else
-		id = res->id + 1;
-	}
-    }
-    if (id > maxid)
-	id = maxid = 0;
-    *minp = id;
-    *maxp = maxid;
-}
-
-/**
- *  GetXIDList is called by the XC-MISC extension's MiscGetXIDList function.
- *  This function tries to find count unused XIDs for the given client.  It 
- *  puts the IDs in the array pids and returns the number found, which should
- *  almost always be the number requested.
- *
- *  The circumstances that lead to a call to this function are very rare.
- *  Xlib must run out of IDs while trying to generate a request that wants
- *  multiple ID's, like the Multi-buffering CreateImageBuffers request.
- *
- *  No rocket science in the implementation; just iterate over all
- *  possible IDs for the given client and pick the first count IDs
- *  that aren't in use.  A more efficient algorithm could probably be
- *  invented, but this will be used so rarely that this should suffice.
- */
-
-unsigned int
-GetXIDList(ClientPtr pClient, unsigned count, XID *pids)
-{
-    unsigned int found = 0;
-    XID id = pClient->clientAsMask;
-    XID maxid;
-
-    maxid = id | RESOURCE_ID_MASK;
-    while ( (found < count) && (id <= maxid) )
-    {
-	if (!LookupIDByClass(id, RC_ANY))
-	{
-	    pids[found++] = id;
-	}
-	id++;
-    }
-    return found;
-}
-
-/*
- * Return the next usable fake client ID.
- *
- * Normally this is just the next one in line, but if we've used the last
- * in the range, we need to find a new range of safe IDs to avoid
- * over-running another client.
- */
-
-XID
-FakeClientID(register int client)
-{
-    XID id, maxid;
-
-    id = clientTable[client].fakeID++;
-    if (id != clientTable[client].endFakeID)
-	return id;
-    GetXIDRange(client, TRUE, &id, &maxid);
-    if (!id) {
-	if (!client)
-	    FatalError("FakeClientID: server internal ids exhausted\n");
-	MarkClientException(clients[client]);
-	id = ((Mask)client << CLIENTOFFSET) | (SERVER_BIT * 3);
-	maxid = id | RESOURCE_ID_MASK;
-    }
-    clientTable[client].fakeID = id + 1;
-    clientTable[client].endFakeID = maxid + 1;
-    return id;
-}
-
-#ifdef NXAGENT_SERVER
-
-int nxagentFindClientResource(int client, RESTYPE type, pointer value)
-{
-  ResourcePtr pResource;
-  ResourcePtr *resources;
-
-  int i;
-
-  for (i = 0; i < clientTable[client].buckets; i++)
-  {
-    resources = clientTable[client].resources;
-
-    for (pResource = resources[i]; pResource; pResource = pResource -> next)
-    {
-      if (pResource -> type == type && pResource -> value == value)
-      {
-        #ifdef TEST
-        fprintf(stderr, "nxagentFindClientResource: Found resource [%p] type [%lu] "
-                    "for client [%d].\n", (void *) value,
-                        pResource -> type, client);
-        #endif
-
-        return 1;
-      }
-    }
-  }
-
-  return 0;
-}
-
-int nxagentSwitchResourceType(int client, RESTYPE type, pointer value)
-{
-  ResourcePtr pResource;
-  ResourcePtr *resources;
-
-  RESTYPE internalType = 0;
-
-  int i;
-
-  if (type == RT_PIXMAP)
-  {
-    internalType = RT_NX_PIXMAP;
-  }
-  else if (type == RT_GC)
-  {
-    internalType = RT_NX_GC;
-  }
-  else if (type == RT_FONT)
-  {
-    internalType = RT_NX_FONT;
-  }
-  else
-  {
-    return 0;
-  }
-
-  if (client == serverClient -> index)
-  {
-    #ifdef TEST
-    fprintf(stderr, "nxagentSwitchResourceType: Requesting client is [%d]. Skipping the resource switch.\n",
-                client);
-    #endif
-
-    return 0;
-  }
-
-  for (i = 0; i < clientTable[serverClient -> index].buckets; i++)
-  {
-    resources = clientTable[serverClient -> index].resources;
-
-    for (pResource = resources[i]; pResource; pResource = pResource -> next)
-    {
-      if (pResource -> type == internalType &&
-              pResource -> value == value)
-      {
-        #ifdef TEST
-        fprintf(stderr, "nxagentSwitchResourceType: Changing resource [%p] type from [%lu] to "
-                    "[%lu] for server client [%d].\n", (void *) value,
-                        (unsigned long) pResource -> type, (unsigned long) type, serverClient -> index);
-        #endif
-
-        FreeResource(pResource -> id, RT_NONE);
-
-        return 1;
-      }
-    }
-  }
-
-  return 0;
-}
-
-#endif
-
-Bool
-AddResource(XID id, RESTYPE type, pointer value)
-{
-    int client;
-    register ClientResourceRec *rrec;
-    register ResourcePtr res, *head;
-
-    client = CLIENT_ID(id);
-    rrec = &clientTable[client];
-    if (!rrec->buckets)
-    {
-	ErrorF("AddResource(%lx, %lx, %lx), client=%d \n",
-		(unsigned long)id, type, (unsigned long)value, client);
-        FatalError("client not in use\n");
-    }
-
-#ifdef NXAGENT_SERVER
-
-    nxagentSwitchResourceType(client, type, value);
-
-    #ifdef TEST
-    fprintf(stderr, "AddResource: Adding resource for client [%d] type [%lu] value [%p] id [%lu].\n",
-                client, (unsigned long) type, (void *) value, (unsigned long) id);
-    #endif
-
-#endif
-
-    if ((rrec->elements >= 4*rrec->buckets) &&
-	(rrec->hashsize < MAXHASHSIZE))
-	RebuildTable(client);
-    head = &rrec->resources[Hash(client, id)];
-    res = (ResourcePtr)xalloc(sizeof(ResourceRec));
-    if (!res)
-    {
-	(*DeleteFuncs[type & TypeMask])(value, id);
-	return FALSE;
-    }
-    res->next = *head;
-    res->id = id;
-    res->type = type;
-    res->value = value;
-    *head = res;
-    rrec->elements++;
-    #ifdef NXAGENT_SERVER
-    nxagentResChangedFlag = 1;
-    #endif
-    if (!(id & SERVER_BIT) && (id >= rrec->expectID))
-	rrec->expectID = id + 1;
-    return TRUE;
-}
-
-static void
-RebuildTable(int client)
-{
-    register int j;
-    register ResourcePtr res, next;
-    ResourcePtr **tails, *resources;
-    register ResourcePtr **tptr, *rptr;
-
-    /*
-     * For now, preserve insertion order, since some ddx layers depend
-     * on resources being free in the opposite order they are added.
-     */
-
-    j = 2 * clientTable[client].buckets;
-    tails = (ResourcePtr **)ALLOCATE_LOCAL(j * sizeof(ResourcePtr *));
-    if (!tails)
-	return;
-    resources = (ResourcePtr *)xalloc(j * sizeof(ResourcePtr));
-    if (!resources)
-    {
-	DEALLOCATE_LOCAL(tails);
-	return;
-    }
-    for (rptr = resources, tptr = tails; --j >= 0; rptr++, tptr++)
-    {
-	*rptr = NullResource;
-	*tptr = rptr;
-    }
-    clientTable[client].hashsize++;
-    for (j = clientTable[client].buckets,
-	 rptr = clientTable[client].resources;
-	 --j >= 0;
-	 rptr++)
-    {
-	for (res = *rptr; res; res = next)
-	{
-	    next = res->next;
-	    res->next = NullResource;
-	    tptr = &tails[Hash(client, res->id)];
-	    **tptr = res;
-	    *tptr = &res->next;
-	}
-    }
-    DEALLOCATE_LOCAL(tails);
-    clientTable[client].buckets *= 2;
-    xfree(clientTable[client].resources);
-    clientTable[client].resources = resources;
-}
-
-void
-FreeResource(XID id, RESTYPE skipDeleteFuncType)
-{
-    int		cid;
-    register    ResourcePtr res;
-    register	ResourcePtr *prev, *head;
-    register	int *eltptr;
-    int		elements;
-    Bool	gotOne = FALSE;
-
-#ifdef NXAGENT_SERVER
-
-    #ifdef TEST
-    fprintf(stderr, "FreeResource: Freeing resource id [%lu].\n", (unsigned long) id);
-    #endif
-
-#endif
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
-    {
-	head = &clientTable[cid].resources[Hash(cid, id)];
-	eltptr = &clientTable[cid].elements;
-
-	prev = head;
-	while ( (res = *prev) )
-	{
-	    if (res->id == id)
-	    {
-		RESTYPE rtype = res->type;
-		*prev = res->next;
-		elements = --*eltptr;
-                #ifdef NXAGENT_SERVER
-                nxagentResChangedFlag = 1;
-                #endif
-		if (rtype & RC_CACHED)
-		    FlushClientCaches(res->id);
-		if (rtype != skipDeleteFuncType)
-		    (*DeleteFuncs[rtype & TypeMask])(res->value, res->id);
-		xfree(res);
-		if (*eltptr != elements)
-		    prev = head; /* prev may no longer be valid */
-		gotOne = TRUE;
-	    }
-	    else
-		prev = &res->next;
-        }
-	if(clients[cid] && (id == clients[cid]->lastDrawableID))
-	{
-	    clients[cid]->lastDrawable = (DrawablePtr)WindowTable[0];
-	    clients[cid]->lastDrawableID = WindowTable[0]->drawable.id;
-	}
-    }
-    if (!gotOne)
-	ErrorF("Freeing resource id=%lX which isn't there.\n",
-		   (unsigned long)id);
-}
-
-
-void
-FreeResourceByType(XID id, RESTYPE type, Bool skipFree)
-{
-    int		cid;
-    register    ResourcePtr res;
-    register	ResourcePtr *prev, *head;
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
-    {
-	head = &clientTable[cid].resources[Hash(cid, id)];
-
-	prev = head;
-	while ( (res = *prev) )
-	{
-	    if (res->id == id && res->type == type)
-	    {
-		*prev = res->next;
-                #ifdef NXAGENT_SERVER
-                nxagentResChangedFlag = 1;
-                #endif
-		if (type & RC_CACHED)
-		    FlushClientCaches(res->id);
-		if (!skipFree)
-		    (*DeleteFuncs[type & TypeMask])(res->value, res->id);
-		xfree(res);
-		break;
-	    }
-	    else
-		prev = &res->next;
-        }
-	if(clients[cid] && (id == clients[cid]->lastDrawableID))
-	{
-	    clients[cid]->lastDrawable = (DrawablePtr)WindowTable[0];
-	    clients[cid]->lastDrawableID = WindowTable[0]->drawable.id;
-	}
-    }
-}
-
-/*
- * Change the value associated with a resource id.  Caller
- * is responsible for "doing the right thing" with the old
- * data
- */
-
-Bool
-ChangeResourceValue (XID id, RESTYPE rtype, pointer value)
-{
-    int    cid;
-    register    ResourcePtr res;
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
-    {
-	res = clientTable[cid].resources[Hash(cid, id)];
-
-	for (; res; res = res->next)
-	    if ((res->id == id) && (res->type == rtype))
-	    {
-		if (rtype & RC_CACHED)
-		    FlushClientCaches(res->id);
-		res->value = value;
-		return TRUE;
-	    }
-    }
-    return FALSE;
-}
-
-/* Note: if func adds or deletes resources, then func can get called
- * more than once for some resources.  If func adds new resources,
- * func might or might not get called for them.  func cannot both
- * add and delete an equal number of resources!
- */
-
-void
-FindClientResourcesByType(
-    ClientPtr client,
-    RESTYPE type,
-    FindResType func,
-    pointer cdata
-){
-    register ResourcePtr *resources;
-    register ResourcePtr this, next;
-    int i, elements;
-    register int *eltptr;
-
-    #ifdef NXAGENT_SERVER
-    register ResourcePtr **resptr;
-    #endif
-
-    if (!client)
-	client = serverClient;
-
-/*
- * If func triggers a resource table
- * rebuild then restart the loop.
- */
-
-#ifdef NXAGENT_SERVER
-RestartLoop:
-#endif
-
-    resources = clientTable[client->index].resources;
-
-    #ifdef NXAGENT_SERVER
-    resptr = &clientTable[client->index].resources;
-    #endif
-
-    eltptr = &clientTable[client->index].elements;
-    for (i = 0; i < clientTable[client->index].buckets; i++) 
-    {
-        for (this = resources[i]; this; this = next)
-	{
-	    next = this->next;
-	    if (!type || this->type == type) {
-		elements = *eltptr;
-
-                /*
-                 * FIXME:
-                 * It is not safe to let a function change the resource
-                 * table we are reading!
-                 */
-
-                #ifdef NXAGENT_SERVER
-                nxagentResChangedFlag = 0;
-                #endif
-		(*func)(this->value, this->id, cdata);
-
-                /*
-                 * Avoid that a call to RebuildTable() could invalidate the
-                 * pointer. This is safe enough, because in RebuildTable()
-                 * the new pointer is allocated just before the old one is
-                 * freed, so it can't point to the same address.
-                 */
-
-                #ifdef NXAGENT_SERVER
-                if (*resptr != resources)
-                   goto RestartLoop;
-                #endif
-
-                /*
-                 * It's not enough to check if the number of elements has
-                 * changed, beacause it could happen that the number of
-                 * resources that have been added matches the number of
-                 * the freed ones.
-                 * 'nxagentResChangedFlag' is set if a resource has been
-                 * added or freed.
-                 */
-
-                #ifdef NXAGENT_SERVER
-                if (*eltptr != elements || nxagentResChangedFlag)
-                #else
-		if (*eltptr != elements)
-                #endif
-		    next = resources[i]; /* start over */
-	    }
-	}
-    }
-}
-
-void
-FindAllClientResources(
-    ClientPtr client,
-    FindAllRes func,
-    pointer cdata
-){
-    register ResourcePtr *resources;
-    register ResourcePtr this, next;
-    int i, elements;
-    register int *eltptr;
-
-    #ifdef NXAGENT_SERVER
-    register ResourcePtr **resptr;
-    #endif
-
-    if (!client)
-        client = serverClient;
-
-/*
- * If func triggers a resource table
- * rebuild then restart the loop.
- */
-
-#ifdef NXAGENT_SERVER
-RestartLoop:
-#endif
-
-    resources = clientTable[client->index].resources;
-
-    #ifdef NXAGENT_SERVER
-    resptr = &clientTable[client->index].resources;
-    #endif
-
-    eltptr = &clientTable[client->index].elements;
-    for (i = 0; i < clientTable[client->index].buckets; i++)
-    {
-        for (this = resources[i]; this; this = next)
-        {
-            next = this->next;
-            elements = *eltptr;
-
-            /*
-             * FIXME:
-             * It is not safe to let a function change the resource
-             * table we are reading!
-             */
-
-            #ifdef NXAGENT_SERVER
-            nxagentResChangedFlag = 0;
-            #endif
-            (*func)(this->value, this->id, this->type, cdata);
-
-            /*
-             * Avoid that a call to RebuildTable() could invalidate the
-             * pointer. This is safe enough, because in RebuildTable()
-             * the new pointer is allocated just before the old one is
-             * freed, so it can't point to the same address.
-             */
-
-            #ifdef NXAGENT_SERVER
-            if (*resptr != resources)
-                goto RestartLoop;
-            #endif
-
-            /*
-             * It's not enough to check if the number of elements has
-             * changed, beacause it could happen that the number of
-             * resources that have been added matches the number of
-             * the freed ones.
-             * 'nxagentResChangedFlag' is set if a resource has been
-             * added or freed.
-             */
-
-            #ifdef NXAGENT_SERVER
-            if (*eltptr != elements || nxagentResChangedFlag)
-            #else
-            if (*eltptr != elements)
-            #endif
-                next = resources[i]; /* start over */
-        }
-    }
-}
-
-
-pointer
-LookupClientResourceComplex(
-    ClientPtr client,
-    RESTYPE type,
-    FindComplexResType func,
-    pointer cdata
-){
-    ResourcePtr *resources;
-    ResourcePtr this;
-    int i;
-
-    #ifdef NXAGENT_SERVER
-    ResourcePtr **resptr;
-    Bool res;
-    #endif
-
-    if (!client)
-	client = serverClient;
-
-/*
- * If func triggers a resource table
- * rebuild then restart the loop.
- */
-
-#ifdef NXAGENT_SERVER
-RestartLoop:
-#endif
-
-    resources = clientTable[client->index].resources;
-
-    #ifdef NXAGENT_SERVER
-    resptr = &clientTable[client->index].resources;
-    #endif
-
-    for (i = 0; i < clientTable[client->index].buckets; i++) {
-        for (this = resources[i]; this; this = this->next) {
-	    if (!type || this->type == type) {
-                #ifdef NXAGENT_SERVER
-                res = (*func)(this->value, this->id, cdata);
-
-                if (*resptr != resources)
-                    goto RestartLoop;
-
-                if (res)
-                    return this->value;
-                #else
-		if((*func)(this->value, this->id, cdata))
-		    return this->value;
-                #endif
-	    }
-	}
-    }
-    return NULL;
-}
-
-
-void
-FreeClientNeverRetainResources(ClientPtr client)
-{
-    ResourcePtr *resources;
-    ResourcePtr this;
-    ResourcePtr *prev;
-    int j;
-
-    if (!client)
-	return;
-
-    resources = clientTable[client->index].resources;
-    for (j=0; j < clientTable[client->index].buckets; j++) 
-    {
-	prev = &resources[j];
-        while ( (this = *prev) )
-	{
-	    RESTYPE rtype = this->type;
-	    if (rtype & RC_NEVERRETAIN)
-	    {
-		*prev = this->next;
-		if (rtype & RC_CACHED)
-		    FlushClientCaches(this->id);
-		(*DeleteFuncs[rtype & TypeMask])(this->value, this->id);
-		xfree(this);	    
-	    }
-	    else
-		prev = &this->next;
-	}
-    }
-}
-
-void
-FreeClientResources(ClientPtr client)
-{
-    register ResourcePtr *resources;
-    register ResourcePtr this;
-    int j;
-
-    /* This routine shouldn't be called with a null client, but just in
-	case ... */
-
-    if (!client)
-	return;
-
-    HandleSaveSet(client);
-
-    resources = clientTable[client->index].resources;
-    for (j=0; j < clientTable[client->index].buckets; j++) 
-    {
-        /* It may seem silly to update the head of this resource list as
-	we delete the members, since the entire list will be deleted any way, 
-	but there are some resource deletion functions "FreeClientPixels" for 
-	one which do a LookupID on another resource id (a Colormap id in this
-	case), so the resource list must be kept valid up to the point that
-	it is deleted, so every time we delete a resource, we must update the
-	head, just like in FreeResource. I hope that this doesn't slow down
-	mass deletion appreciably. PRH */
-
-	ResourcePtr *head;
-
-	head = &resources[j];
-
-        for (this = *head; this; this = *head)
-	{
-	    RESTYPE rtype = this->type;
-	    *head = this->next;
-	    if (rtype & RC_CACHED)
-		FlushClientCaches(this->id);
-	    (*DeleteFuncs[rtype & TypeMask])(this->value, this->id);
-	    xfree(this);	    
-	}
-    }
-    xfree(clientTable[client->index].resources);
-    clientTable[client->index].resources = NULL;
-    clientTable[client->index].buckets = 0;
-}
-
-void
-FreeAllResources()
-{
-    int	i;
-
-    for (i = currentMaxClients; --i >= 0; ) 
-    {
-        if (clientTable[i].buckets) 
-	    FreeClientResources(clients[i]);
-    }
-}
-
-Bool
-LegalNewID(XID id, register ClientPtr client)
-{
-
-#ifdef PANORAMIX
-    XID 	minid, maxid;
-
-	if (!noPanoramiXExtension) { 
-	    minid = client->clientAsMask | (client->index ? 
-			                    SERVER_BIT : SERVER_MINID);
-	    maxid = (clientTable[client->index].fakeID | RESOURCE_ID_MASK) + 1;
-            if ((id >= minid) && (id <= maxid))
-	        return TRUE;
-	}
-#endif /* PANORAMIX */
-	return ((client->clientAsMask == (id & ~RESOURCE_ID_MASK)) &&
-	    ((clientTable[client->index].expectID <= id) ||
-	     !LookupIDByClass(id, RC_ANY)));
-}
-
-#ifdef XCSECURITY
-
-/* SecurityLookupIDByType and SecurityLookupIDByClass:
- * These are the heart of the resource ID security system.  They take
- * two additional arguments compared to the old LookupID functions:
- * the client doing the lookup, and the access mode (see resource.h).
- * The resource is returned if it exists and the client is allowed access,
- * else NULL is returned.
- */
-
-pointer
-SecurityLookupIDByType(ClientPtr client, XID id, RESTYPE rtype, Mask mode)
-{
-    int    cid;
-    register    ResourcePtr res;
-    pointer retval = NULL;
-
-    assert(client == NullClient ||
-     (client->index <= currentMaxClients && clients[client->index] == client));
-    assert( (rtype & TypeMask) <= lastResourceType);
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) &&
-	clientTable[cid].buckets)
-    {
-	res = clientTable[cid].resources[Hash(cid, id)];
-
-	for (; res; res = res->next)
-	    if ((res->id == id) && (res->type == rtype))
-	    {
-		retval = res->value;
-		break;
-	    }
-    }
-    if (retval && client && client->CheckAccess)
-	retval = (* client->CheckAccess)(client, id, rtype, mode, retval);
-    return retval;
-}
-
-
-pointer
-SecurityLookupIDByClass(ClientPtr client, XID id, RESTYPE classes, Mask mode)
-{
-    int    cid;
-    register ResourcePtr res = NULL;
-    pointer retval = NULL;
-
-    assert(client == NullClient ||
-     (client->index <= currentMaxClients && clients[client->index] == client));
-    assert (classes >= lastResourceClass);
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) &&
-	clientTable[cid].buckets)
-    {
-	res = clientTable[cid].resources[Hash(cid, id)];
-
-	for (; res; res = res->next)
-	    if ((res->id == id) && (res->type & classes))
-	    {
-		retval = res->value;
-		break;
-	    }
-    }
-    if (retval && client && client->CheckAccess)
-	retval = (* client->CheckAccess)(client, id, res->type, mode, retval);
-    return retval;
-}
-
-/* We can't replace the LookupIDByType and LookupIDByClass functions with
- * macros because of compatibility with loadable servers.
- */
-
-pointer
-LookupIDByType(XID id, RESTYPE rtype)
-{
-    return SecurityLookupIDByType(NullClient, id, rtype,
-				  SecurityUnknownAccess);
-}
-
-pointer
-LookupIDByClass(XID id, RESTYPE classes)
-{
-    return SecurityLookupIDByClass(NullClient, id, classes,
-				   SecurityUnknownAccess);
-}
-
-#else /* not XCSECURITY */
-
-/*
- *  LookupIDByType returns the object with the given id and type, else NULL.
- */ 
-pointer
-LookupIDByType(XID id, RESTYPE rtype)
-{
-    int    cid;
-    register    ResourcePtr res;
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) &&
-	clientTable[cid].buckets)
-    {
-	res = clientTable[cid].resources[Hash(cid, id)];
-
-	for (; res; res = res->next)
-	    if ((res->id == id) && (res->type == rtype))
-		return res->value;
-    }
-    return (pointer)NULL;
-}
-
-/*
- *  LookupIDByClass returns the object with the given id and any one of the
- *  given classes, else NULL.
- */ 
-pointer
-LookupIDByClass(XID id, RESTYPE classes)
-{
-    int    cid;
-    register    ResourcePtr res;
-
-    if (((cid = CLIENT_ID(id)) < MAXCLIENTS) &&
-	clientTable[cid].buckets)
-    {
-	res = clientTable[cid].resources[Hash(cid, id)];
-
-	for (; res; res = res->next)
-	    if ((res->id == id) && (res->type & classes))
-		return res->value;
-    }
-    return (pointer)NULL;
-}
-
-#endif /* XCSECURITY */
-
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c
index e3e4f4b83..a6d638ea7 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c
@@ -967,8 +967,17 @@ ProcShmPutImage(client)
         return BadValue;
     }
 
-    VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
-		   client);
+    /* 
+     * There's a potential integer overflow in this check:
+     * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
+     *                client);
+     * the version below ought to avoid it
+     */
+    if (stuff->totalHeight != 0 && 
+	length > (shmdesc->size - stuff->offset)/stuff->totalHeight) {
+	client->errorValue = stuff->totalWidth;
+	return BadValue;
+    }
     if (stuff->srcX > stuff->totalWidth)
     {
 	client->errorValue = stuff->srcX;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.NX.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.NX.original
index e3e4f4b83..a6d638ea7 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.NX.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.NX.original
@@ -967,8 +967,17 @@ ProcShmPutImage(client)
         return BadValue;
     }
 
-    VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
-		   client);
+    /* 
+     * There's a potential integer overflow in this check:
+     * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
+     *                client);
+     * the version below ought to avoid it
+     */
+    if (stuff->totalHeight != 0 && 
+	length > (shmdesc->size - stuff->offset)/stuff->totalHeight) {
+	client->errorValue = stuff->totalWidth;
+	return BadValue;
+    }
     if (stuff->srcX > stuff->totalWidth)
     {
 	client->errorValue = stuff->srcX;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.X.original b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.X.original
index e2cf8cd24..f25bb9b5d 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.X.original
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXshm.c.X.original
@@ -863,8 +863,17 @@ ProcShmPutImage(client)
         return BadValue;
     }
 
-    VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
-		   client);
+    /* 
+     * There's a potential integer overflow in this check:
+     * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
+     *                client);
+     * the version below ought to avoid it
+     */
+    if (stuff->totalHeight != 0 && 
+	length > (shmdesc->size - stuff->offset)/stuff->totalHeight) {
+	client->errorValue = stuff->totalWidth;
+	return BadValue;
+    }
     if (stuff->srcX > stuff->totalWidth)
     {
 	client->errorValue = stuff->srcX;