static int CountBinaryBytes( CUtlBuffer &buf, int *pEndGet )
{
// This counts the number of bytes in the uuencoded text
int nStartGet = buf.TellGet();
buf.EatWhiteSpace();
*pEndGet = buf.TellGet();
int nByteCount = 0;
while ( buf.IsValid() )
{
char c1 = buf.GetChar();
char c2 = buf.GetChar();
bool bIsNum1 = ( c1 >= '0' ) && ( c1 <= '9' );
bool bIsNum2 = ( c2 >= '0' ) && ( c2 <= '9' );
bool bIsAlpha1 = (( c1 >= 'A' ) && ( c1 <= 'F' )) || (( c1 >= 'a' ) && ( c1 <= 'f' ));
bool bIsAlpha2 = (( c2 >= 'A' ) && ( c2 <= 'F' )) || (( c2 >= 'a' ) && ( c2 <= 'f' ));
if ( !(bIsNum1 || bIsAlpha1) || !(bIsNum2 || bIsAlpha2) )
break;
buf.EatWhiteSpace();
*pEndGet = buf.TellGet();
++nByteCount;
}
buf.SeekGet( CUtlBuffer::SEEK_HEAD, nStartGet );
return nByteCount;
}
bool Unserialize( CUtlBuffer &buf, CUtlBinaryBlock &dest )
{
if ( !buf.IsText() )
{
int nLen = buf.GetInt( );
dest.SetLength( nLen );
if ( dest.Length() != 0 )
{
buf.Get( dest.Get(), dest.Length() );
}
if ( nLen != dest.Length() )
{
buf.SeekGet( CUtlBuffer::SEEK_CURRENT, nLen - dest.Length() );
return false;
}
return buf.IsValid();
}
int nEndGet;
int nByteCount = CountBinaryBytes( buf, &nEndGet );
if ( nByteCount < 0 )
return false;
buf.EatWhiteSpace();
int nDest = 0;
dest.SetLength( nByteCount );
while( buf.TellGet() < nEndGet )
{
char c1 = buf.GetChar();
char c2 = buf.GetChar();
unsigned char b1 = HexCharToInt( c1 );
unsigned char b2 = HexCharToInt( c2 );
if ( b1 == 0xFF || b2 == 0xFF )
return false;
dest[ nDest++ ] = b2 | ( b1 << 4 );
buf.EatWhiteSpace();
}
return true;
}
