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dix: write out X_GetKeyboardControl reply directly 

No need for using a complex callback machinery, if we just move the
little pieces of byte-swapping directly into the request handler.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2025-04-03 16:26:23 +02:00
parent 3f4b59f5b5
commit 7bf52a5510
4 changed files with 28 additions and 30 deletions
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39
dix/devices.c
View File

@ -1984,27 +1984,36 @@ ProcGetKeyboardMapping(ClientPtr client)
if (!syms)
return BadAlloc;
const int count = syms->mapWidth * stuff->count;
const int size = count * sizeof(KeySym);
void *payload = calloc(count, sizeof(KeySym));
if (!payload)
return BadAlloc;
memcpy(payload,
&syms->map[syms->mapWidth * (stuff->firstKeyCode - syms->minKeyCode)],
size);
xGetKeyboardMappingReply rep = {
.type = X_Reply,
.keySymsPerKeyCode = syms->mapWidth,
.sequenceNumber = client->sequence,
/* length is a count of 4 byte quantities and KeySyms are 4 bytes */
.length = syms->mapWidth * stuff->count
.length = count
};
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
SwapLongs(payload, count);
}
WriteToClient(client, sizeof(rep), &rep);
client->pSwapReplyFunc = (ReplySwapPtr) CopySwap32Write;
WriteSwappedDataToClient(client,
syms->mapWidth * stuff->count * sizeof(KeySym),
&syms->map[syms->mapWidth * (stuff->firstKeyCode -
syms->minKeyCode)]);
WriteToClient(client, size, payload);
free(syms->map);
free(syms);
free(payload);
return Success;
}
@ -2266,18 +2275,16 @@ ProcChangeKeyboardControl(ClientPtr client)
int
ProcGetKeyboardControl(ClientPtr client)
{
int rc, i;
DeviceIntPtr kbd = PickKeyboard(client);
KeybdCtrl *ctrl = &kbd->kbdfeed->ctrl;
xGetKeyboardControlReply rep;
REQUEST_SIZE_MATCH(xReq);
rc = XaceHookDeviceAccess(client, kbd, DixGetAttrAccess);
int rc = XaceHookDeviceAccess(client, kbd, DixGetAttrAccess);
if (rc != Success)
return rc;
rep = (xGetKeyboardControlReply) {
xGetKeyboardControlReply rep = {
.type = X_Reply,
.globalAutoRepeat = ctrl->autoRepeat,
.sequenceNumber = client->sequence,
@ -2288,9 +2295,17 @@ ProcGetKeyboardControl(ClientPtr client)
.bellPitch = ctrl->bell_pitch,
.bellDuration = ctrl->bell_duration
};
for (i = 0; i < 32; i++)
for (int i = 0; i < 32; i++)
rep.map[i] = ctrl->autoRepeats[i];
WriteReplyToClient(client, sizeof(xGetKeyboardControlReply), &rep);
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.ledMask);
swaps(&rep.bellPitch);
swaps(&rep.bellDuration);
}
WriteToClient(client, sizeof(rep), &rep);
return Success;
}

12
dix/swaprep.c
View File

@ -535,18 +535,6 @@ SListExtensionsReply(ClientPtr pClient, int size, xListExtensionsReply * pRep)
WriteToClient(pClient, size, pRep);
}
void _X_COLD
SGetKeyboardControlReply(ClientPtr pClient, int size,
xGetKeyboardControlReply * pRep)
{
swaps(&pRep->sequenceNumber);
swapl(&pRep->length);
swapl(&pRep->ledMask);
swaps(&pRep->bellPitch);
swaps(&pRep->bellDuration);
WriteToClient(pClient, size, pRep);
}
void _X_COLD
SGetPointerControlReply(ClientPtr pClient, int size,
xGetPointerControlReply * pRep)

2
dix/tables.c
View File

@ -815,7 +815,7 @@ ReplySwapPtr ReplySwapVector[256] = {
ReplyNotSwappd, /* 100 */
ReplyNotSwappd,
ReplyNotSwappd,
(ReplySwapPtr) SGetKeyboardControlReply,
ReplyNotSwappd,
ReplyNotSwappd,
ReplyNotSwappd, /* 105 */
(ReplySwapPtr) SGetPointerControlReply,

5
include/swaprep.h
View File

@ -154,11 +154,6 @@ extern void SListExtensionsReply(ClientPtr /* pClient */ ,
int /* size */ ,
xListExtensionsReply * /* pRep */ );
extern void SGetKeyboardControlReply(ClientPtr /* pClient */ ,
int /* size */ ,
xGetKeyboardControlReply *
/* pRep */ );
extern void SGetPointerControlReply(ClientPtr /* pClient */ ,
int /* size */ ,
xGetPointerControlReply *