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/*
* Copyright © 2009 Red Hat, Inc.
*
* 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, 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 (including the next
* paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors: Peter Hutterer
*
*/
/**
* @file xiqueryversion.c
* Protocol handling for the XIQueryVersion request/reply.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "inputstr.h"
#include <X11/Xmd.h>
#include <X11/X.h>
#include <X11/extensions/XI2proto.h>
#include "exglobals.h"
#include "exevents.h"
#include "xiqueryversion.h"
#include "misc.h"
extern XExtensionVersion XIVersion; /* defined in getvers.c */
/**
* Return the supported XI version.
*
* Saves the version the client claims to support as well, for future
* reference.
*/
int
ProcXIQueryVersion(ClientPtr client)
{
xXIQueryVersionReply rep;
XIClientPtr pXIClient;
int major, minor;
REQUEST(xXIQueryVersionReq);
REQUEST_SIZE_MATCH(xXIQueryVersionReq);
/* This request only exists after XI2 */
if (stuff->major_version < 2) {
client->errorValue = stuff->major_version;
return BadValue;
}
pXIClient = dixLookupPrivate(&client->devPrivates, XIClientPrivateKey);
if (pXIClient->major_version &&
(stuff->major_version != pXIClient->major_version ||
stuff->minor_version != pXIClient->minor_version))
{
client->errorValue = stuff->major_version;
return BadValue;
}
if (version_compare(XIVersion.major_version, XIVersion.minor_version,
stuff->major_version, stuff->minor_version) > 0) {
major = stuff->major_version;
minor = stuff->minor_version;
}
else {
major = XIVersion.major_version;
minor = XIVersion.minor_version;
}
pXIClient->major_version = major;
pXIClient->minor_version = minor;
memset(&rep, 0, sizeof(xXIQueryVersionReply));
rep.repType = X_Reply;
rep.RepType = X_XIQueryVersion;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.major_version = major;
rep.minor_version = minor;
WriteReplyToClient(client, sizeof(xXIQueryVersionReply), &rep);
return Success;
}
/* Swapping routines */
int
SProcXIQueryVersion(ClientPtr client)
{
REQUEST(xXIQueryVersionReq);
swaps(&stuff->length);
REQUEST_AT_LEAST_SIZE(xXIQueryVersionReq);
swaps(&stuff->major_version);
swaps(&stuff->minor_version);
return (ProcXIQueryVersion(client));
}
void
SRepXIQueryVersion(ClientPtr client, int size, xXIQueryVersionReply * rep)
{
swaps(&rep->sequenceNumber);
swapl(&rep->length);
swaps(&rep->major_version);
swaps(&rep->minor_version);
WriteToClient(client, size, (char *) rep);
}
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