These confused GCC LTO, which thought they might be used
uninitialized. I'm pretty sure that as long as 'res' indicates
success, they will always be set to something, but let's unconfuse
the compiler in any case.
The trunnel functions are written under the assumption that their
allocators can fail, so GCC LTO thinks they might return NULL. In
point of fact, they're using tor_malloc() and friends, which can't
fail, but GCC won't necessarily figure that out.
Fixes part of #27772.
Coverity rightly complains that early in the function we're checking
whether username is NULL, and later we're passing it unconditionally
to strlen().
Fixes CID 1437967. Bug not in any released Tor.
This commit won't build yet -- it just puts everything in a slightly
more logical place.
The reasoning here is that "src/core" will hold the stuff that every (or
nearly every) tor instance will need in order to do onion routing.
Other features (including some necessary ones) will live in
"src/feature". The "src/app" directory will hold the stuff needed
to have Tor be an application you can actually run.
This commit DOES NOT refactor the former contents of src/or into a
logical set of acyclic libraries, or change any code at all. That
will have to come in the future.
We will continue to move things around and split them in the future,
but I hope this lays a reasonable groundwork for doing so.
