To Professor Daniel Bernstein: thanks for stralloc / array

Hi,

I would like to say thank you for the stralloc string library, now
being replaced by the array library.

I think this library is a key to security and great performance of
your software. I adapted this concept in some of my C projects and I
think it was good move. I would suggest anyone to replace rubbish old
string.h string functions with this library. I'd like to highlight
main features, maybe someone will benefit from that.

- programs using stralloc are immune to buffer overflows or reading
beyond the end of string, see qmail or other DJB software,
- great performance -- it doesn't have to traverse the whole string
when appending to it, because it maintains current length,
- it's binary safe, it can't be fooled by strings containing '\0's or
other garbage in the middle,
- the API is very simple yet powerful.

Take a look at the docs here
http://cr.yp.to/lib/stralloc.html

Mr Bernstein please also consider adding stralloc_contains() and
stralloc_endswith() to your implementation. These are useful functions
which are trivial to implement.

Regards.