handle an externally provided "static" buffer as well a a dynamic
buffer. The "static" buffer is filled first, but if overflowed, the
dynamic buffer is used instead, being allocated somewhere i the heap.
This combines the benefits of putting the output in a preallocated
buffer (on the stack, for example) and in a buffer that grows
somewhere in the heap.
like Malloc, Realloc and especially Free conflict with already existing names
on some operating systems or other packages. That is reason enough to change
the names of the OpenSSL memory allocation macros to something that has a
better chance of being unique, like prepending them with OPENSSL_.
This change includes all the name changes needed throughout all C files.
default yet, I wanna play with it a bit more.
For those who don't know: asprintf() is an allocating sprintf. The
first argument to it is a double indirection to char instead of a
single.
