sprintf overflows

[martin-ueding]

There is an idiom often used in the code:

char buff[200];
sprintf(buff, …);

This is dangerous as sprintf can write more bytes than there is space in the buffer buff. It would be better to use snprintf which does a bounds check. But then one would have to take a look at the return value because this function can fail. In that case one would have to emit an exception.

I can understand that std::ostringstream::operator<< is not as usable as a printf-style format string. Using Boost format would be a viable alternative: easy and safe to use.

[martin-ueding]

I have replaced the sprintf with boost::format. There are some occurrences that one still has to fix in other files.