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/***************************************************************************
password.cpp - description
-------------------
begin : Mon Nov 27 2000
copyright : (C) 2000 by Martin Bickel
email : bickel@asc-hq.org
***************************************************************************/
/*! \file password.cpp
\brief A class for holding, encoding and comparing passwords
*/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "password.h"
#include "misc.h"
void Password :: setUnencoded ( const string& s )
{
password = encodedpassword2string ( encodepassword ( s.c_str() ) );
}
void Password :: setEncoded ( const string& s )
{
if ( !s.empty () ) {
if ( s[0] == 'A' )
password = s;
else
password = encodedpassword2string ( atoi ( s.c_str() ));
} else
password = s;
}
void Password :: setInt ( int pwd )
{
password = encodedpassword2string ( pwd );
}
bool Password :: operator== ( const Password& p ) const
{
return p.password == password;
}
bool Password :: operator!= ( const Password& p ) const
{
return p.password != password;
}
int Password :: encodepassword ( const char* pw ) const
{
if ( !pw )
return 0;
int len = strlen ( pw );
if ( len )
return crc32buf( pw, len+1 );
else
return 0;
}
string Password :: encodedpassword2string ( int pwd ) const
{
string s;
if ( !pwd )
return s;
s = "A";
if ( pwd > 0 )
s+= "A";
else
s+= "B";
s += strrr ( abs (pwd) );
return s;
}
bool Password :: empty () const
{
return password.empty();
}
string Password :: toString ( ) const
{
return password;
}
void Password::read ( tnstream& stream )
{
int i = stream.readInt();
password = encodedpassword2string ( i );
}
void Password::write ( tnstream& stream ) const
{
int i;
if ( password[0] == 'A' ) {
if ( password[1] == 'A' )
i = atoi ( password.substr ( 2 ).c_str() );
else
i = -atoi ( password.substr ( 2 ).c_str() );
stream.writeInt ( i );
} else
stream.writeInt ( 0 );
}
void Password::reset()
{
password = "";
}
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