X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2FXext%2Fappgroup.c;fp=Xserver%2Fprograms%2FXserver%2FXext%2Fappgroup.c;h=76e3c5cfef5e21b95dd4f1ee0d8a212244521106;hp=0000000000000000000000000000000000000000;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hpb=e3340a110a3b01756b8e67531395a33b40a17d37

diff --git a/Xserver/programs/Xserver/Xext/appgroup.c b/Xserver/programs/Xserver/Xext/appgroup.c
new file mode 100644
index 0000000..76e3c5c
--- /dev/null
+++ b/Xserver/programs/Xserver/Xext/appgroup.c
@@ -0,0 +1,805 @@
+/*
+Copyright (c) 1996  X Consortium
+
+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 sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+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 X CONSORTIUM 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 X Consortium 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 X Consortium.
+*/
+/* $XConsortium: appgroup.c /main/20 1996/12/08 16:14:27 kaleb $ */
+
+#define NEED_REPLIES
+#define NEED_EVENTS
+#include "X.h"
+#include "Xproto.h"
+#include "misc.h"
+#include "dixstruct.h"
+#include "extnsionst.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "colormapst.h"
+#include "servermd.h"
+#define _XAG_SERVER_
+#include "Xagstr.h"
+#define _SECURITY_SERVER
+#include "security.h"
+#include "Xfuncproto.h"
+
+#define XSERV_t
+#include <X11/Xtrans.h>
+#include "../os/osdep.h"
+
+#include <stdio.h>
+
+typedef struct _AppGroupRec {
+    struct _AppGroupRec* next;
+    XID			appgroupId;
+    ClientPtr*		clients;
+    int			nclients;
+    ClientPtr		leader;
+    Bool		single_screen;
+    Window		default_root;
+    VisualID		root_visual;
+    Colormap		default_colormap;    
+    Pixel		black_pixel;
+    Pixel		white_pixel;
+    xConnSetupPrefix	connSetupPrefix;
+    char*		ConnectionInfo;
+} AppGroupRec, *AppGroupPtr;
+
+static int		ProcXagDispatch (), SProcXagDispatch ();
+static void		XagResetProc ();
+
+static unsigned char	XagReqCode = 0;
+static int		XagErrorBase;
+static int		XagCallbackRefCount = 0;
+
+static RESTYPE		RT_APPGROUP;
+static AppGroupPtr	appGrpList = NULL;
+
+extern WindowPtr* WindowTable;
+extern xConnSetupPrefix connSetupPrefix;
+extern char* ConnectionInfo;
+
+static 
+int XagAppGroupFree (what, id)
+    pointer what;
+    XID id; /* unused */
+{
+    int i;
+    AppGroupPtr pAppGrp = (AppGroupPtr) what;
+
+    if (pAppGrp->leader)
+	for (i = 0; i < pAppGrp->nclients; i++) {
+	    pAppGrp->clients[i]->appgroup = NULL;
+	    CloseDownClient (pAppGrp->clients[i]);
+	}
+
+    if (pAppGrp == appGrpList)
+	appGrpList = appGrpList->next;
+    else {
+	AppGroupPtr tpAppGrp;
+	for (tpAppGrp = appGrpList; 
+	    tpAppGrp->next != NULL; 
+	    tpAppGrp = tpAppGrp->next) {
+	    if (tpAppGrp->next == pAppGrp) {
+		tpAppGrp->next = tpAppGrp->next->next;
+		break;
+	    }
+	}
+    }
+    (void) xfree (pAppGrp->clients);
+    (void) xfree (pAppGrp->ConnectionInfo);
+    (void) xfree (what);
+    return Success;
+}
+
+/* static */
+void XagClientStateChange (pcbl, nulldata, calldata)
+    CallbackListPtr* pcbl;
+    pointer nulldata;
+    pointer calldata;
+{
+    SecurityAuthorizationPtr pAuth;
+    NewClientInfoRec* pci = (NewClientInfoRec*) calldata;
+    ClientPtr pClient = pci->client;
+    AppGroupPtr pAppGrp;
+    XID authId;
+
+    if (!pClient->appgroup) {
+	switch (pClient->clientState) {
+
+	case ClientStateAuthenticating:
+	case ClientStateRunning: 
+	case ClientStateCheckingSecurity:
+	    return;
+
+	case ClientStateInitial: 
+	case ClientStateCheckedSecurity:
+	    /* 
+	     * If the client is connecting via a firewall proxy (which
+	     * uses XC-QUERY-SECURITY-1, then the authId is available
+	     * during ClientStateCheckedSecurity, otherwise it's
+	     * available during ClientStateInitial.
+	     *
+	     * Don't get it from pClient because can't guarantee the order
+	     * of the callbacks and the security extension might not have
+	     * plugged it in yet.
+	     */
+	    authId = AuthorizationIDOfClient(pClient);
+	    break;
+
+	case ClientStateGone:
+	case ClientStateRetained:
+	    /*
+	     * Don't get if from AuthorizationIDOfClient because can't
+	     * guarantee the order of the callbacks and the security
+	     * extension may have torn down the client's private data
+	     */
+	    authId = pClient->authId;
+	    break;
+	}
+
+	if (authId == None)
+	    return;
+
+	pAuth = (SecurityAuthorizationPtr)SecurityLookupIDByType(pClient,
+		authId, SecurityAuthorizationResType, SecurityReadAccess);
+
+	if (pAuth == NULL)
+	    return;
+
+	for (pAppGrp = appGrpList; pAppGrp != NULL; pAppGrp = pAppGrp->next)
+	    if (pAppGrp->appgroupId == pAuth->group) break;
+    } else {
+	pAppGrp = pClient->appgroup;
+    }
+
+    if (!pAppGrp)
+	return;
+
+    switch (pClient->clientState) {
+    case ClientStateAuthenticating:
+    case ClientStateRunning: 
+    case ClientStateCheckingSecurity:
+	break;
+
+    case ClientStateInitial: 
+    case ClientStateCheckedSecurity:
+	/* see the comment above about Initial vs. CheckedSecurity */
+	{
+	    /* if this client already in AppGroup, don't add it again */
+	    int i;
+	    for (i = 0; i < pAppGrp->nclients; i++)
+		if (pClient == pAppGrp->clients[i]) return;
+	}
+	pAppGrp->clients = (ClientPtr*) xrealloc (pAppGrp->clients, 
+				++pAppGrp->nclients * sizeof (ClientPtr));
+	pAppGrp->clients[pAppGrp->nclients - 1] = pClient;
+	pClient->appgroup = pAppGrp;
+	break;
+
+    case ClientStateGone:
+    case ClientStateRetained: /* client disconnected, dump it */
+	{
+	    int i;
+	    for (i = 0; i < pAppGrp->nclients; i++)
+		if (pAppGrp->clients[i] == pClient) {
+		    pAppGrp->clients[i] = NULL;
+		    break;
+		}
+	    for (i = 0; i < pAppGrp->nclients; i++)
+		if (pAppGrp->clients[i] == NULL && i + 1 < pAppGrp->nclients)
+		    pAppGrp->clients[i] = pAppGrp->clients[i + 1];
+	    pAppGrp->nclients--;
+	}
+	pClient->appgroup = NULL; /* redundant, pClient will be freed */
+	break;
+    }
+}
+
+void
+XagExtensionInit ()
+{
+    ExtensionEntry* extEntry;
+
+    if (extEntry = AddExtension (XAGNAME,
+				0,
+				XagNumberErrors,
+				ProcXagDispatch,
+				SProcXagDispatch,
+				XagResetProc,
+				StandardMinorOpcode)) {
+	XagReqCode = (unsigned char)extEntry->base;
+	XagErrorBase = extEntry->errorBase;
+	RT_APPGROUP = CreateNewResourceType (XagAppGroupFree);
+    }
+}
+
+/*ARGSUSED*/
+static 
+void XagResetProc (extEntry)
+    ExtensionEntry* extEntry;
+{
+    DeleteCallback (&ClientStateCallback, XagClientStateChange, NULL);
+    XagCallbackRefCount = 0;
+    while (appGrpList) XagAppGroupFree ((pointer) appGrpList, 0);
+}
+
+static 
+int ProcXagQueryVersion (client)
+    register ClientPtr client;
+{
+    REQUEST (xXagQueryVersionReq);
+    xXagQueryVersionReply rep;
+    register int n;
+
+    REQUEST_SIZE_MATCH (xXagQueryVersionReq);
+    rep.type = X_Reply;
+    rep.length = 0;
+    rep.sequence_number = client->sequence;
+    rep.server_major_version = XAG_MAJOR_VERSION;
+    rep.server_minor_version = XAG_MINOR_VERSION;
+    if (client->swapped) {
+    	swaps (&rep.sequence_number, n);
+    	swapl (&rep.length, n);
+    	swaps (&rep.server_major_version, n);
+    	swaps (&rep.server_minor_version, n);
+    }
+    WriteToClient (client, sizeof (xXagQueryVersionReply), (char *)&rep);
+    return client->noClientException;
+}
+
+static 
+void ProcessAttr (pAppGrp, client, attrib_mask, attribs)
+    AppGroupPtr pAppGrp;
+    ClientPtr client;
+    unsigned int attrib_mask;
+    CARD32* attribs;
+{
+    int i;
+
+    for (i = XagNsingleScreen; i <= XagNappGroupLeader; i++) {
+	switch (attrib_mask & (1 << i)) {
+	case XagSingleScreenMask:
+	    pAppGrp->single_screen = *attribs;
+	    break;
+	case XagDefaultRootMask:
+	    pAppGrp->default_root = *attribs;
+	    break;
+	case XagRootVisualMask:
+	    pAppGrp->root_visual = *attribs;
+	    break;
+	case XagDefaultColormapMask:
+	    pAppGrp->default_colormap = *attribs;
+	    break;
+	case XagBlackPixelMask:
+	    pAppGrp->black_pixel = *attribs;
+	    break;
+	case XagWhitePixelMask:
+	    pAppGrp->white_pixel = *attribs;
+	    break;
+	case XagAppGroupLeaderMask:
+	    pAppGrp->leader = client;
+	    break;
+	default: continue;
+	}
+	attribs++;
+    }
+}
+
+static 
+void CreateConnectionInfo (pAppGrp)
+    AppGroupPtr pAppGrp;
+{
+    extern int connBlockScreenStart;
+    xConnSetup *setup = (xConnSetup*) ConnectionInfo;
+    xWindowRoot* rootp;
+    xWindowRoot* roots[MAXSCREENS];
+    unsigned int rootlens[MAXSCREENS];
+    xDepth* depth;
+    int olen;
+    int snum, i;
+
+    rootp = (xWindowRoot*) (ConnectionInfo + connBlockScreenStart);
+    for (snum = 0; snum < screenInfo.numScreens; snum++) {
+
+	rootlens[snum] = sizeof (xWindowRoot);
+	roots[snum] = rootp;
+
+	depth = (xDepth*) (rootp + 1);
+	for (i = 0; i < rootp->nDepths; i++) {
+	    rootlens[snum] += sizeof (xDepth) + 
+			      depth->nVisuals * sizeof (xVisualType);
+	    depth = (xDepth *)(((char*)(depth + 1)) +
+		depth->nVisuals * sizeof (xVisualType));
+	}
+	rootp = (xWindowRoot*) depth;
+    }
+    snum = 0;
+    if (pAppGrp->default_root) {
+	for (; snum < screenInfo.numVideoScreens; snum++) {
+	    if (roots[snum]->windowId == pAppGrp->default_root)
+		break;
+        }
+    }
+    olen = connBlockScreenStart + rootlens[snum];
+    for (i = screenInfo.numVideoScreens; i < screenInfo.numScreens; i++)
+	olen += rootlens[i];
+    pAppGrp->ConnectionInfo = (char*) xalloc (olen);
+    if (!pAppGrp->ConnectionInfo)
+	return;
+    memmove (pAppGrp->ConnectionInfo, ConnectionInfo, connBlockScreenStart);
+    ((xConnSetup*) (pAppGrp->ConnectionInfo))->numRoots = 
+	1 + screenInfo.numScreens - screenInfo.numVideoScreens;
+    memmove (pAppGrp->ConnectionInfo + connBlockScreenStart,
+	     (void*) roots[snum], rootlens[snum]);
+    rootp = (xWindowRoot*) (pAppGrp->ConnectionInfo + connBlockScreenStart);
+    if (pAppGrp->default_colormap) {
+	rootp->defaultColormap = pAppGrp->default_colormap;
+	rootp->whitePixel = pAppGrp->white_pixel;
+	rootp->blackPixel = pAppGrp->black_pixel;
+    }
+    if (pAppGrp->root_visual)
+	rootp->rootVisualID = pAppGrp->root_visual;
+    rootp = (xWindowRoot*) (((char*)rootp) + rootlens[snum]);
+    for (i = screenInfo.numVideoScreens; i < screenInfo.numScreens; i++) {
+	memmove ((void*) rootp, (void*) roots[i], rootlens[i]);
+	rootp = (xWindowRoot*) (((char*) rootp) + rootlens[i]);
+    }
+    pAppGrp->connSetupPrefix = connSetupPrefix;
+    pAppGrp->connSetupPrefix.length = olen >> 2;
+}
+
+static 
+AppGroupPtr CreateAppGroup (client, appgroupId, attrib_mask, attribs)
+    ClientPtr client;
+    XID appgroupId;
+    unsigned int attrib_mask;
+    CARD32* attribs;
+{
+    AppGroupPtr pAppGrp;
+    int i;
+
+    pAppGrp = (AppGroupPtr) xalloc (sizeof(AppGroupRec));
+    if (pAppGrp) {
+	pAppGrp->next = appGrpList;
+	appGrpList = pAppGrp;
+	pAppGrp->appgroupId = appgroupId;
+	pAppGrp->clients = (ClientPtr*) xalloc (0);
+	pAppGrp->nclients = 0;
+	pAppGrp->leader = NULL;
+	pAppGrp->default_root = 0;
+	pAppGrp->root_visual = 0;
+	pAppGrp->default_colormap = 0;
+	pAppGrp->black_pixel = -1;
+	pAppGrp->white_pixel = -1;
+	pAppGrp->ConnectionInfo = NULL;
+	ProcessAttr (pAppGrp, client, attrib_mask, attribs);
+    }
+    return pAppGrp;
+}
+
+static 
+int AttrValidate (client, attrib_mask, pAppGrp)
+    ClientPtr client;
+    int attrib_mask;
+    AppGroupPtr pAppGrp;
+{
+    WindowPtr pWin;
+    int idepth, ivids, found;
+    ScreenPtr pScreen;
+    DepthPtr pDepth;
+    ColormapPtr pColormap;
+
+    pWin = LookupWindow (pAppGrp->default_root, client);
+    /* XXX check that pWin is not NULL */
+    pScreen = pWin->drawable.pScreen;
+    if (WindowTable[pScreen->myNum]->drawable.id != pAppGrp->default_root)
+	return BadWindow;
+    pDepth = pScreen->allowedDepths;
+    if (pAppGrp->root_visual) {
+	found = FALSE;
+	for (idepth = 0; idepth < pScreen->numDepths; idepth++, pDepth++) {
+	    for (ivids = 0; ivids < pDepth->numVids; ivids++) {
+		if (pAppGrp->root_visual == pDepth->vids[ivids]) {
+		    found = TRUE;
+		    break;
+		}
+	    }
+	}
+	if (!found)
+	    return BadMatch;
+    }
+    if (pAppGrp->default_colormap) {
+
+	pColormap = (ColormapPtr)LookupIDByType (pAppGrp->default_colormap, RT_COLORMAP);
+	/* XXX check that pColormap is not NULL */
+	if (pColormap->pScreen != pScreen)
+	    return BadColor;
+	if (pColormap->pVisual->vid != (pAppGrp->root_visual ? pAppGrp->root_visual : pScreen->rootVisual))
+	    return BadMatch;
+    }
+    return client->noClientException;
+}
+
+/* static */
+int ProcXagCreate (client)
+    register ClientPtr client;
+{
+    REQUEST (xXagCreateReq);
+    AppGroupPtr pAppGrp;
+    int ret;
+
+    REQUEST_AT_LEAST_SIZE (xXagCreateReq);
+
+    LEGAL_NEW_RESOURCE (stuff->app_group, client);
+    pAppGrp = CreateAppGroup (client, stuff->app_group, 
+		stuff->attrib_mask, (CARD32*) &stuff[1]);
+    if (!pAppGrp)
+	return BadAlloc;
+    ret = AttrValidate (client, stuff->attrib_mask, pAppGrp);
+    if (ret != Success) {
+	XagAppGroupFree ((pointer)pAppGrp, (XID)0);
+	return ret;
+    }
+    if (pAppGrp->single_screen) {
+	CreateConnectionInfo (pAppGrp);
+	if (!pAppGrp->ConnectionInfo)
+	    return BadAlloc;
+    }
+    if (!AddResource (stuff->app_group, RT_APPGROUP, (pointer)pAppGrp))
+	return BadAlloc;
+    if (XagCallbackRefCount++ == 0)
+	(void) AddCallback (&ClientStateCallback, XagClientStateChange, NULL);
+    return client->noClientException;
+}
+
+/* static */
+int ProcXagDestroy (client)
+    register ClientPtr client;
+{
+    AppGroupPtr pAppGrp;
+    REQUEST (xXagDestroyReq);
+
+    REQUEST_SIZE_MATCH (xXagDestroyReq);
+    pAppGrp = (AppGroupPtr)SecurityLookupIDByType (client, 
+		(XID)stuff->app_group, RT_APPGROUP, SecurityReadAccess);
+    if (!pAppGrp) return XagBadAppGroup;
+    FreeResource ((XID)stuff->app_group, RT_NONE);
+    if (--XagCallbackRefCount == 0)
+	(void) DeleteCallback (&ClientStateCallback, XagClientStateChange, NULL);
+    return client->noClientException;
+}
+
+static 
+int ProcXagGetAttr (client)
+    register ClientPtr client;
+{
+    AppGroupPtr pAppGrp;
+    REQUEST (xXagGetAttrReq);
+    xXagGetAttrReply rep;
+    int n;
+
+    REQUEST_SIZE_MATCH (xXagGetAttrReq);
+    pAppGrp = (AppGroupPtr)SecurityLookupIDByType (client, 
+		(XID)stuff->app_group, RT_APPGROUP, SecurityReadAccess);
+    if (!pAppGrp) return XagBadAppGroup;
+    rep.default_root = pAppGrp->default_root;
+    rep.root_visual = pAppGrp->root_visual;
+    rep.default_colormap = pAppGrp->default_colormap;
+    rep.single_screen = pAppGrp->single_screen;
+    rep.app_group_leader = (pAppGrp->leader) ? 1 : 0;
+    if (client->swapped) {
+    	swaps (&rep.sequence_number, n);
+    	swapl (&rep.length, n);
+    	swapl (&rep.default_root, n);
+    	swapl (&rep.root_visual, n);
+    	swapl (&rep.default_colormap, n);
+    }
+    WriteToClient (client, sizeof (xXagGetAttrReply), (char *)&rep);
+    return client->noClientException;
+}
+
+static 
+int ProcXagQuery (client)
+    register ClientPtr client;
+{
+    ClientPtr pClient;
+    AppGroupPtr pAppGrp;
+    REQUEST (xXagQueryReq);
+    int n;
+
+    REQUEST_SIZE_MATCH (xXagQueryReq);
+    pClient = LookupClient (stuff->resource, client);
+    for (pAppGrp = appGrpList; pAppGrp != NULL; pAppGrp = pAppGrp->next)
+	for (n = 0; n < pAppGrp->nclients; n++)
+	    if (pAppGrp->clients[n] == pClient) {
+		xXagQueryReply rep;
+
+		rep.type = X_Reply;
+		rep.length = 0;
+		rep.sequence_number = client->sequence;
+		rep.app_group = pAppGrp->appgroupId;
+		if (client->swapped) {
+		    swaps (&rep.sequence_number, n);
+		    swapl (&rep.length, n);
+		    swapl (&rep.app_group, n);
+		}
+		WriteToClient (client, sizeof (xXagQueryReply), (char *)&rep);
+		return client->noClientException;
+	    }
+
+    return BadMatch;
+}
+
+static 
+int ProcXagCreateAssoc (client)
+    register ClientPtr client;
+{
+    REQUEST (xXagCreateAssocReq);
+
+    REQUEST_SIZE_MATCH (xXagCreateAssocReq);
+#ifdef WIN32
+    if (stuff->window_type != XagWindowTypeWin32)
+#else
+    if (stuff->window_type != XagWindowTypeX11)
+#endif
+	return BadMatch;
+#ifdef WIN32 /* and Mac, etc */
+    if (!LocalClient (client))
+	return BadAccess;
+#endif
+
+/* Macintosh, OS/2, and MS-Windows servers have some work to do here */
+
+    return client->noClientException;
+}
+
+static 
+int ProcXagDestroyAssoc (client)
+    register ClientPtr client;
+{
+    REQUEST (xXagDestroyAssocReq);
+
+    REQUEST_SIZE_MATCH (xXagDestroyAssocReq);
+/* Macintosh, OS/2, and MS-Windows servers have some work to do here */
+    return client->noClientException;
+}
+
+static 
+int ProcXagDispatch (client)
+    register ClientPtr	client;
+{
+    REQUEST (xReq);
+    switch (stuff->data)
+    {
+    case X_XagQueryVersion:
+	return ProcXagQueryVersion (client);
+    case X_XagCreate:
+	return ProcXagCreate (client);
+    case X_XagDestroy:
+	return ProcXagDestroy (client);
+    case X_XagGetAttr:
+	return ProcXagGetAttr (client);
+    case X_XagQuery:
+	return ProcXagQuery (client);
+    case X_XagCreateAssoc:
+	return ProcXagCreateAssoc (client);
+    case X_XagDestroyAssoc:
+	return ProcXagDestroyAssoc (client);
+    default:
+	return BadRequest;
+    }
+}
+
+static 
+int SProcXagQueryVersion (client)
+    register ClientPtr	client;
+{
+    register int n;
+    REQUEST(xXagQueryVersionReq);
+    swaps(&stuff->length, n);
+    return ProcXagQueryVersion(client);
+}
+
+static 
+int SProcXagCreate (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagCreateReq);
+    swaps (&stuff->length, n);
+    REQUEST_AT_LEAST_SIZE (xXagCreateReq);
+    swapl (&stuff->app_group, n);
+    swapl (&stuff->attrib_mask, n);
+    SwapRestL (stuff);
+    return ProcXagCreate (client);
+}
+
+static 
+int SProcXagDestroy (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagDestroyReq);
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXagDestroyReq);
+    swapl (&stuff->app_group, n);
+    return ProcXagDestroy (client);
+}
+
+static 
+int SProcXagGetAttr (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagGetAttrReq);
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXagGetAttrReq);
+    swapl (&stuff->app_group, n);
+    return ProcXagGetAttr (client);
+}
+
+static 
+int SProcXagQuery (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagQueryReq);
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXagQueryReq);
+    swapl (&stuff->resource, n);
+    return ProcXagQuery (client);
+}
+
+static 
+int SProcXagCreateAssoc (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagCreateAssocReq);
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXagCreateAssocReq);
+    swapl (&stuff->window, n);
+    swapl (&stuff->window_type, n);
+    swaps (&stuff->system_window_len, n);
+    return ProcXagCreateAssoc (client);
+}
+
+static 
+int SProcXagDestroyAssoc (client)
+    ClientPtr client;
+{
+    register int n;
+    REQUEST (xXagDestroyAssocReq);
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXagDestroyAssocReq);
+    swapl (&stuff->window, n);
+    return ProcXagDestroyAssoc (client);
+}
+
+static 
+int SProcXagDispatch (client)
+    register ClientPtr	client;
+{
+    REQUEST(xReq);
+    switch (stuff->data)
+    {
+    case X_XagQueryVersion:
+	return SProcXagQueryVersion (client);
+    case X_XagCreate:
+	return SProcXagCreate (client);
+    case X_XagDestroy:
+	return SProcXagDestroy (client);
+    case X_XagGetAttr:
+	return SProcXagGetAttr (client);
+    case X_XagQuery:
+	return SProcXagQuery (client);
+    case X_XagCreateAssoc:
+	return SProcXagCreateAssoc (client);
+    case X_XagDestroyAssoc:
+	return SProcXagDestroyAssoc (client);
+    default:
+	return BadRequest;
+    }
+}
+
+Colormap XagDefaultColormap (client)
+    ClientPtr client;
+{
+    return (client->appgroup ? client->appgroup->default_colormap : None);
+}
+
+VisualID XagRootVisual (client)
+    ClientPtr client;
+{
+    return (client->appgroup ? client->appgroup->root_visual : 0);
+}
+
+ClientPtr XagLeader (client)
+    ClientPtr client;
+{
+    return (client->appgroup ? client->appgroup->leader : NULL);
+}
+
+/*
+ * Return whether the Map request event should be sent to the appgroup leader.
+ * We don't want to send it to the leader when the window is on a different
+ * screen, e.g. a print screen.
+ */
+Bool XagIsControlledRoot (client, pParent)
+    ClientPtr client;
+    WindowPtr pParent;
+{
+    if (client->appgroup) {
+	if (client->appgroup->single_screen && 
+	    pParent->drawable.id == client->appgroup->default_root)
+	    return TRUE;
+	else if (!pParent->parent)
+	    return TRUE;
+	else
+	    return FALSE;
+    }
+    return FALSE; 
+}
+
+void XagConnectionInfo (client, conn_prefix, conn_info, num_screen)
+    ClientPtr client;
+    xConnSetupPrefix** conn_prefix;
+    char** conn_info;
+    int* num_screen;
+{
+    if (client->appgroup && client->appgroup->ConnectionInfo) {
+	*conn_prefix = &client->appgroup->connSetupPrefix;
+	*conn_info = client->appgroup->ConnectionInfo;
+	*num_screen = ((xConnSetup*)(client->appgroup->ConnectionInfo))->numRoots;
+    } 
+}
+
+XID XagId (client)
+    ClientPtr client;
+{
+    return (client->appgroup ? client->appgroup->appgroupId : 0);
+}
+
+void XagGetDeltaInfo (client, buf)
+    ClientPtr client;
+    CARD32* buf;
+{
+    *buf++ = (CARD32) client->appgroup->default_root;
+    *buf++ = (CARD32) client->appgroup->root_visual;
+    *buf++ = (CARD32) client->appgroup->default_colormap;
+    *buf++ = (CARD32) client->appgroup->black_pixel;
+    *buf = (CARD32) client->appgroup->white_pixel;
+}
+
+void XagCallClientStateChange (client)
+    ClientPtr client;
+{
+    if (appGrpList) {
+	NewClientInfoRec clientinfo;
+
+	clientinfo.client = client;
+	XagClientStateChange (NULL, NULL, (pointer)&clientinfo);
+    }
+}