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