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/*
* Copyright © 2011 Intel Corporation
*
* 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.
*/
#include <dix-config.h>
#include "glxserver.h"
#include "indirect_dispatch.h"
#include "glxbyteorder.h"
#include "unpack.h"
static int
set_client_info(__GLXclientState * cl, xGLXSetClientInfoARBReq * req,
unsigned bytes_per_version)
{
ClientPtr client = cl->client;
char *gl_extensions;
char *glx_extensions;
int size;
REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
/* Verify that the size of the packet matches the size inferred from the
* sizes specified for the various fields.
*/
size = sz_xGLXSetClientInfoARBReq;
size = safe_add(size, safe_mul(req->numVersions, bytes_per_version));
size = safe_add(size, safe_pad(req->numGLExtensionBytes));
size = safe_add(size, safe_pad(req->numGLXExtensionBytes));
if (size < 0 || req->length != (size / 4))
return BadLength;
/* Verify that the actual length of the GL extension string matches what's
* encoded in protocol packet.
*/
gl_extensions = (char *) (req + 1) + (req->numVersions * bytes_per_version);
if (req->numGLExtensionBytes != 0
&& memchr(gl_extensions, 0,
__GLX_PAD(req->numGLExtensionBytes)) == NULL)
return BadLength;
/* Verify that the actual length of the GLX extension string matches
* what's encoded in protocol packet.
*/
glx_extensions = gl_extensions + __GLX_PAD(req->numGLExtensionBytes);
if (req->numGLXExtensionBytes != 0
&& memchr(glx_extensions, 0,
__GLX_PAD(req->numGLXExtensionBytes)) == NULL)
return BadLength;
free(cl->GLClientextensions);
cl->GLClientextensions = strdup(gl_extensions);
return 0;
}
int
__glXDisp_SetClientInfoARB(__GLXclientState * cl, GLbyte * pc)
{
return set_client_info(cl, (xGLXSetClientInfoARBReq *) pc, 8);
}
int
__glXDispSwap_SetClientInfoARB(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXSetClientInfoARBReq *req = (xGLXSetClientInfoARBReq *) pc;
REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
req->length = bswap_16(req->length);
req->numVersions = bswap_32(req->numVersions);
req->numGLExtensionBytes = bswap_32(req->numGLExtensionBytes);
req->numGLXExtensionBytes = bswap_32(req->numGLXExtensionBytes);
return __glXDisp_SetClientInfoARB(cl, pc);
}
int
__glXDisp_SetClientInfo2ARB(__GLXclientState * cl, GLbyte * pc)
{
return set_client_info(cl, (xGLXSetClientInfoARBReq *) pc, 12);
}
int
__glXDispSwap_SetClientInfo2ARB(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXSetClientInfoARBReq *req = (xGLXSetClientInfoARBReq *) pc;
REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
req->length = bswap_16(req->length);
req->numVersions = bswap_32(req->numVersions);
req->numGLExtensionBytes = bswap_32(req->numGLExtensionBytes);
req->numGLXExtensionBytes = bswap_32(req->numGLXExtensionBytes);
return __glXDisp_SetClientInfo2ARB(cl, pc);
}
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