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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* RDPEDISP Virtual Channel Extension
*
* Copyright 2019 Kobi Mizrachi <kmizrachi18@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/config.h>
#include <winpr/crt.h>
#include <winpr/stream.h>
#include <freerdp/channels/log.h>
#define TAG CHANNELS_TAG("disp.common")
#include "disp_common.h"
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT disp_read_header(wStream* s, DISPLAY_CONTROL_HEADER* header)
{
if (!Stream_CheckAndLogRequiredLength(TAG, s, 8))
return ERROR_INVALID_DATA;
Stream_Read_UINT32(s, header->type);
Stream_Read_UINT32(s, header->length);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT disp_write_header(wStream* s, const DISPLAY_CONTROL_HEADER* header)
{
Stream_Write_UINT32(s, header->type);
Stream_Write_UINT32(s, header->length);
return CHANNEL_RC_OK;
}
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