797ed93386
One year after Ilja van Sprundel, discovered and reported a large number of issues in the way the X server code base handles requests from X clients, they have been fixed.
518 lines
15 KiB
C
518 lines
15 KiB
C
/************************************************************
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Hewlett-Packard not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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********************************************************/
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/********************************************************************
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*
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* Change feedback control attributes for an extension device.
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "inputstr.h" /* DeviceIntPtr */
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h> /* control constants */
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#include "exglobals.h"
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#include "chgfctl.h"
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#define DO_ALL (-1)
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/***********************************************************************
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*
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* This procedure changes the control attributes for an extension device,
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* for clients on machines with a different byte ordering than the server.
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*
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*/
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int
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SProcXChangeFeedbackControl(ClientPtr client)
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{
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REQUEST(xChangeFeedbackControlReq);
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swaps(&stuff->length);
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REQUEST_AT_LEAST_SIZE(xChangeFeedbackControlReq);
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swapl(&stuff->mask);
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return (ProcXChangeFeedbackControl(client));
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}
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/******************************************************************************
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*
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* This procedure changes KbdFeedbackClass data.
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*
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*/
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static int
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ChangeKbdFeedback(ClientPtr client, DeviceIntPtr dev, long unsigned int mask,
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KbdFeedbackPtr k, xKbdFeedbackCtl * f)
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{
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KeybdCtrl kctrl;
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int t;
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int key = DO_ALL;
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if (client->swapped) {
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swaps(&f->length);
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swaps(&f->pitch);
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swaps(&f->duration);
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swapl(&f->led_mask);
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swapl(&f->led_values);
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}
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kctrl = k->ctrl;
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if (mask & DvKeyClickPercent) {
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t = f->click;
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if (t == -1)
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t = defaultKeyboardControl.click;
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else if (t < 0 || t > 100) {
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client->errorValue = t;
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return BadValue;
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}
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kctrl.click = t;
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}
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if (mask & DvPercent) {
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t = f->percent;
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if (t == -1)
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t = defaultKeyboardControl.bell;
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else if (t < 0 || t > 100) {
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client->errorValue = t;
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return BadValue;
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}
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kctrl.bell = t;
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}
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if (mask & DvPitch) {
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t = f->pitch;
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if (t == -1)
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t = defaultKeyboardControl.bell_pitch;
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else if (t < 0) {
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client->errorValue = t;
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return BadValue;
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}
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kctrl.bell_pitch = t;
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}
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if (mask & DvDuration) {
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t = f->duration;
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if (t == -1)
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t = defaultKeyboardControl.bell_duration;
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else if (t < 0) {
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client->errorValue = t;
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return BadValue;
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}
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kctrl.bell_duration = t;
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}
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if (mask & DvLed) {
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kctrl.leds &= ~(f->led_mask);
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kctrl.leds |= (f->led_mask & f->led_values);
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}
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if (mask & DvKey) {
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key = (KeyCode) f->key;
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if (key < 8 || key > 255) {
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client->errorValue = key;
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return BadValue;
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}
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if (!(mask & DvAutoRepeatMode))
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return BadMatch;
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}
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if (mask & DvAutoRepeatMode) {
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int inx = (key >> 3);
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int kmask = (1 << (key & 7));
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t = (CARD8) f->auto_repeat_mode;
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if (t == AutoRepeatModeOff) {
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if (key == DO_ALL)
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kctrl.autoRepeat = FALSE;
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else
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kctrl.autoRepeats[inx] &= ~kmask;
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}
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else if (t == AutoRepeatModeOn) {
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if (key == DO_ALL)
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kctrl.autoRepeat = TRUE;
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else
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kctrl.autoRepeats[inx] |= kmask;
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}
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else if (t == AutoRepeatModeDefault) {
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if (key == DO_ALL)
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kctrl.autoRepeat = defaultKeyboardControl.autoRepeat;
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else
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kctrl.autoRepeats[inx] &= ~kmask;
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kctrl.autoRepeats[inx] =
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(kctrl.autoRepeats[inx] & ~kmask) |
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(defaultKeyboardControl.autoRepeats[inx] & kmask);
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}
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else {
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client->errorValue = t;
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return BadValue;
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}
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}
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k->ctrl = kctrl;
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(*k->CtrlProc) (dev, &k->ctrl);
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return Success;
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}
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/******************************************************************************
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*
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* This procedure changes PtrFeedbackClass data.
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*
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*/
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static int
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ChangePtrFeedback(ClientPtr client, DeviceIntPtr dev, long unsigned int mask,
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PtrFeedbackPtr p, xPtrFeedbackCtl * f)
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{
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PtrCtrl pctrl; /* might get BadValue part way through */
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if (client->swapped) {
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swaps(&f->length);
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swaps(&f->num);
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swaps(&f->denom);
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swaps(&f->thresh);
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}
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pctrl = p->ctrl;
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if (mask & DvAccelNum) {
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int accelNum;
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accelNum = f->num;
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if (accelNum == -1)
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pctrl.num = defaultPointerControl.num;
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else if (accelNum < 0) {
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client->errorValue = accelNum;
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return BadValue;
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}
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else
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pctrl.num = accelNum;
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}
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if (mask & DvAccelDenom) {
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int accelDenom;
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accelDenom = f->denom;
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if (accelDenom == -1)
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pctrl.den = defaultPointerControl.den;
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else if (accelDenom <= 0) {
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client->errorValue = accelDenom;
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return BadValue;
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}
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else
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pctrl.den = accelDenom;
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}
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if (mask & DvThreshold) {
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int threshold;
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threshold = f->thresh;
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if (threshold == -1)
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pctrl.threshold = defaultPointerControl.threshold;
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else if (threshold < 0) {
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client->errorValue = threshold;
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return BadValue;
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}
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else
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pctrl.threshold = threshold;
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}
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p->ctrl = pctrl;
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(*p->CtrlProc) (dev, &p->ctrl);
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return Success;
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}
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/******************************************************************************
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*
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* This procedure changes IntegerFeedbackClass data.
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*
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*/
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static int
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ChangeIntegerFeedback(ClientPtr client, DeviceIntPtr dev,
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long unsigned int mask, IntegerFeedbackPtr i,
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xIntegerFeedbackCtl * f)
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{
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if (client->swapped) {
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swaps(&f->length);
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swapl(&f->int_to_display);
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}
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i->ctrl.integer_displayed = f->int_to_display;
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(*i->CtrlProc) (dev, &i->ctrl);
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return Success;
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}
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/******************************************************************************
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*
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* This procedure changes StringFeedbackClass data.
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*
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*/
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static int
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ChangeStringFeedback(ClientPtr client, DeviceIntPtr dev,
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long unsigned int mask, StringFeedbackPtr s,
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xStringFeedbackCtl * f)
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{
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int i, j;
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KeySym *syms, *sup_syms;
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syms = (KeySym *) (f + 1);
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if (client->swapped) {
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swaps(&f->length); /* swapped num_keysyms in calling proc */
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SwapLongs((CARD32 *) syms, f->num_keysyms);
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}
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if (f->num_keysyms > s->ctrl.max_symbols)
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return BadValue;
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sup_syms = s->ctrl.symbols_supported;
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for (i = 0; i < f->num_keysyms; i++) {
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for (j = 0; j < s->ctrl.num_symbols_supported; j++)
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if (*(syms + i) == *(sup_syms + j))
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break;
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if (j == s->ctrl.num_symbols_supported)
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return BadMatch;
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}
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s->ctrl.num_symbols_displayed = f->num_keysyms;
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for (i = 0; i < f->num_keysyms; i++)
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*(s->ctrl.symbols_displayed + i) = *(syms + i);
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(*s->CtrlProc) (dev, &s->ctrl);
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return Success;
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}
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/******************************************************************************
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*
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* This procedure changes BellFeedbackClass data.
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*
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*/
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static int
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ChangeBellFeedback(ClientPtr client, DeviceIntPtr dev,
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long unsigned int mask, BellFeedbackPtr b,
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xBellFeedbackCtl * f)
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{
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int t;
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BellCtrl bctrl; /* might get BadValue part way through */
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if (client->swapped) {
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swaps(&f->length);
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swaps(&f->pitch);
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swaps(&f->duration);
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}
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bctrl = b->ctrl;
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if (mask & DvPercent) {
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t = f->percent;
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if (t == -1)
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t = defaultKeyboardControl.bell;
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else if (t < 0 || t > 100) {
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client->errorValue = t;
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return BadValue;
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}
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bctrl.percent = t;
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}
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if (mask & DvPitch) {
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t = f->pitch;
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if (t == -1)
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t = defaultKeyboardControl.bell_pitch;
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else if (t < 0) {
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client->errorValue = t;
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return BadValue;
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}
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bctrl.pitch = t;
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}
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if (mask & DvDuration) {
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t = f->duration;
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if (t == -1)
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t = defaultKeyboardControl.bell_duration;
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else if (t < 0) {
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client->errorValue = t;
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return BadValue;
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}
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bctrl.duration = t;
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}
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b->ctrl = bctrl;
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(*b->CtrlProc) (dev, &b->ctrl);
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return Success;
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}
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/******************************************************************************
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*
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* This procedure changes LedFeedbackClass data.
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*
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*/
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static int
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ChangeLedFeedback(ClientPtr client, DeviceIntPtr dev, long unsigned int mask,
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LedFeedbackPtr l, xLedFeedbackCtl * f)
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{
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LedCtrl lctrl; /* might get BadValue part way through */
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if (client->swapped) {
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swaps(&f->length);
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swapl(&f->led_values);
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swapl(&f->led_mask);
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}
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f->led_mask &= l->ctrl.led_mask; /* set only supported leds */
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f->led_values &= l->ctrl.led_mask; /* set only supported leds */
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if (mask & DvLed) {
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lctrl.led_mask = f->led_mask;
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lctrl.led_values = f->led_values;
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(*l->CtrlProc) (dev, &lctrl);
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l->ctrl.led_values &= ~(f->led_mask); /* zero changed leds */
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l->ctrl.led_values |= (f->led_mask & f->led_values); /* OR in set leds */
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}
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return Success;
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}
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/***********************************************************************
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*
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* Change the control attributes.
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*
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*/
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int
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ProcXChangeFeedbackControl(ClientPtr client)
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{
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unsigned len;
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DeviceIntPtr dev;
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KbdFeedbackPtr k;
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PtrFeedbackPtr p;
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IntegerFeedbackPtr i;
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StringFeedbackPtr s;
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BellFeedbackPtr b;
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LedFeedbackPtr l;
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int rc;
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REQUEST(xChangeFeedbackControlReq);
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REQUEST_AT_LEAST_SIZE(xChangeFeedbackControlReq);
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len = stuff->length - bytes_to_int32(sizeof(xChangeFeedbackControlReq));
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rc = dixLookupDevice(&dev, stuff->deviceid, client, DixManageAccess);
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if (rc != Success)
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return rc;
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switch (stuff->feedbackid) {
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case KbdFeedbackClass:
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if (len != bytes_to_int32(sizeof(xKbdFeedbackCtl)))
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return BadLength;
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for (k = dev->kbdfeed; k; k = k->next)
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if (k->ctrl.id == ((xKbdFeedbackCtl *) &stuff[1])->id)
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return ChangeKbdFeedback(client, dev, stuff->mask, k,
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(xKbdFeedbackCtl *) &stuff[1]);
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break;
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case PtrFeedbackClass:
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if (len != bytes_to_int32(sizeof(xPtrFeedbackCtl)))
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return BadLength;
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for (p = dev->ptrfeed; p; p = p->next)
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if (p->ctrl.id == ((xPtrFeedbackCtl *) &stuff[1])->id)
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return ChangePtrFeedback(client, dev, stuff->mask, p,
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(xPtrFeedbackCtl *) &stuff[1]);
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break;
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case StringFeedbackClass:
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{
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xStringFeedbackCtl *f = ((xStringFeedbackCtl *) &stuff[1]);
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if (client->swapped) {
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if (len < bytes_to_int32(sizeof(xStringFeedbackCtl)))
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return BadLength;
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swaps(&f->num_keysyms);
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}
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if (len !=
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(bytes_to_int32(sizeof(xStringFeedbackCtl)) + f->num_keysyms))
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return BadLength;
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for (s = dev->stringfeed; s; s = s->next)
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if (s->ctrl.id == ((xStringFeedbackCtl *) &stuff[1])->id)
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return ChangeStringFeedback(client, dev, stuff->mask, s,
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(xStringFeedbackCtl *) &stuff[1]);
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break;
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}
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case IntegerFeedbackClass:
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if (len != bytes_to_int32(sizeof(xIntegerFeedbackCtl)))
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return BadLength;
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for (i = dev->intfeed; i; i = i->next)
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if (i->ctrl.id == ((xIntegerFeedbackCtl *) &stuff[1])->id)
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return ChangeIntegerFeedback(client, dev, stuff->mask, i,
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(xIntegerFeedbackCtl *) &
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stuff[1]);
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break;
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case LedFeedbackClass:
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if (len != bytes_to_int32(sizeof(xLedFeedbackCtl)))
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return BadLength;
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for (l = dev->leds; l; l = l->next)
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if (l->ctrl.id == ((xLedFeedbackCtl *) &stuff[1])->id)
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return ChangeLedFeedback(client, dev, stuff->mask, l,
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(xLedFeedbackCtl *) &stuff[1]);
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break;
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case BellFeedbackClass:
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if (len != bytes_to_int32(sizeof(xBellFeedbackCtl)))
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return BadLength;
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for (b = dev->bell; b; b = b->next)
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if (b->ctrl.id == ((xBellFeedbackCtl *) &stuff[1])->id)
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return ChangeBellFeedback(client, dev, stuff->mask, b,
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(xBellFeedbackCtl *) &stuff[1]);
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break;
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default:
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break;
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}
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return BadMatch;
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}
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