FreeRDP/channels/encomsp/encomsp_common.c
2014-07-14 18:01:29 -04:00

67 lines
1.7 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Multiparty Virtual Channel
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <winpr/crt.h>
#include <winpr/print.h>
#include "encomsp_common.h"
int encomsp_read_header(wStream* s, ENCOMSP_ORDER_HEADER* header)
{
if (Stream_GetRemainingLength(s) < ENCOMSP_ORDER_HEADER_SIZE)
return -1;
Stream_Read_UINT16(s, header->Type); /* Type (2 bytes) */
Stream_Read_UINT16(s, header->Length); /* Length (2 bytes) */
return 1;
}
int encomsp_write_header(wStream* s, ENCOMSP_ORDER_HEADER* header)
{
Stream_Write_UINT16(s, header->Type); /* Type (2 bytes) */
Stream_Write_UINT16(s, header->Length); /* Length (2 bytes) */
return 1;
}
int encomsp_read_unicode_string(wStream* s, ENCOMSP_UNICODE_STRING* str)
{
ZeroMemory(str, sizeof(ENCOMSP_UNICODE_STRING));
if (Stream_GetRemainingLength(s) < 2)
return -1;
Stream_Read_UINT16(s, str->cchString); /* cchString (2 bytes) */
if (str->cchString > 1024)
return -1;
if (Stream_GetRemainingLength(s) < (str->cchString * 2))
return -1;
Stream_Read(s, &(str->wString), (str->cchString * 2)); /* String (variable) */
return 1;
}