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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2019-2022 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <algorithm>
#include <rdr/HexInStream.h>
#include <rdr/Exception.h>
#include <rfb/util.h>
using namespace rdr;
HexInStream::HexInStream(InStream& is)
: in_stream(is)
{
}
HexInStream::~HexInStream() {
}
bool HexInStream::fillBuffer() {
if (!in_stream.hasData(2))
return false;
size_t length = std::min(in_stream.avail()/2, availSpace());
const uint8_t* iptr = in_stream.getptr(length*2);
uint8_t* optr = (uint8_t*) end;
for (size_t i=0; i<length; i++) {
if (!rfb::hexToBin((const char*)&iptr[i*2], 2, &optr[i], 1))
throw Exception("HexInStream: Invalid input data");
}
in_stream.setptr(length*2);
end += length;
return true;
}
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