HP-Socket/Windows/Src/MiscHelper.cpp
2021-01-15 15:38:07 +08:00

53 lines
1.5 KiB
C++

/*
* Copyright: JessMA Open Source (ldcsaa@gmail.com)
*
* Author : Bruce Liang
* Website : https://github.com/ldcsaa
* Project : https://github.com/ldcsaa/HP-Socket
* Blog : http://www.cnblogs.com/ldcsaa
* Wiki : http://www.oschina.net/p/hp-socket
* QQ Group : 44636872, 75375912
*
* 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 "stdafx.h"
#include "MiscHelper.h"
BOOL AddPackHeader(const WSABUF * pBuffers, int iCount, unique_ptr<WSABUF[]>& buffers, DWORD dwMaxPackSize, USHORT usPackHeaderFlag, DWORD& dwHeader)
{
ASSERT(pBuffers && iCount > 0);
DWORD iLength = 0;
for(int i = 0; i < iCount; i++)
{
const WSABUF& buf = pBuffers[i];
buffers[i + 1] = buf;
iLength += buf.len;
}
if(iLength == 0 || iLength > dwMaxPackSize)
{
::SetLastError(ERROR_BAD_LENGTH);
return FALSE;
}
dwHeader = ::HToLE32((usPackHeaderFlag << TCP_PACK_LENGTH_BITS) | iLength);
buffers[0].len = sizeof(dwHeader);
buffers[0].buf = (char*)&dwHeader;
return TRUE;
}