// Copyright © 2010-2012 b0ris
//.
// This program 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 program 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 program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#include <QCryptographicHash>
#include "client.h"
#include "Utility.h"


QByteArray md5_sum(QString &filename)
{
	QFile file(filename);
	if (! file.exists())
	{
		Logger::Warn("Can't compute md5sum: file %s do not exist\n", filename.toStdString().c_str());
		return NULL;
	}
	
	file.open(QIODevice::ReadOnly);
	QCryptographicHash md5hash(QCryptographicHash::Md5);	
	while (! file.atEnd())
	{
		const size_t buf_sz = 4096;
		md5hash.addData(file.read(buf_sz));
	}
	file.close();
	
	QByteArray res = md5hash.result().toHex();
	Logger::Debug("MD5 sum for %s is: %s\n", filename.toStdString().c_str(), res.data());
	return res;
}

#ifdef WIN32

int wstrlen(_TCHAR * wstr)
{
    int l_idx = 0;
    while (((char*)wstr)[l_idx]!=0) l_idx+=2;
    return l_idx;
}

char* wstrdup(_TCHAR* wSrc)
{
    int l_idx=0;
    int l_len = wstrlen(wSrc);
    char * l_nstr = (char*)malloc(l_len);
    if (l_nstr) {
        do {
           l_nstr[l_idx] = (char)wSrc[l_idx];
           l_idx++;
        } while ((char)wSrc[l_idx]!=0);
    }
    l_nstr[l_idx] = 0;
    return l_nstr;
}

#endif