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/*
* libopenraw - orfcontainer.cpp
*
* Copyright (C) 2006, 2010 Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "trace.h"
#include "orfcontainer.h"
using namespace Debug;
namespace OpenRaw {
namespace Internals {
OrfContainer::OrfContainer(IO::Stream *_file, off_t offset)
: IFDFileContainer(_file, offset)
, subtype_(0)
{
}
OrfContainer::~OrfContainer()
{
}
IFDFileContainer::EndianType
OrfContainer::isMagicHeader(const char *p, int len)
{
if (len < 4){
// we need at least 4 bytes to check
return ENDIAN_NULL;
}
if ((p[0] == 'I') && (p[1] == 'I')) {
if((p[2] == 'R') && ((p[3] == 'O') || (p[3] == 'S'))) {
Trace(DEBUG1) << "Identified EL ORF file. Subtype = " << p[3] << "\n";
subtype_ = p[3];
return ENDIAN_LITTLE;
}
}
else if((p[0] == 'M') && (p[1] == 'M')) {
if((p[3] == 'R') && ((p[2] == 'O') || (p[2] == 'S'))) {
Trace(DEBUG1) << "Identified BE ORF file. Subtype = " << p[2] << "\n";
subtype_ = p[2];
return ENDIAN_BIG;
}
}
Trace(ERROR) << "Unidentified ORF file\n";
return ENDIAN_NULL;
}
}
}
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