Commit Briefs
change log_request to take the code and meta unpacked
don't know what i was smoking when I wrote log_request() like that...
change on fatalx -> log_warnx
we already check the validity of the format string, but still avoid a gratious fatal() at runtime.
simplify request handling
get rid of check_path(), it's overly complicated. Instead, inline open_file() in client_read() and rework open_dir() to just use openat() instead of the complicate dance it was doing. Simplify open_dir() too in the process: if the directory entry for the index is not a regular file, pretend it doesn't exist.
fix client_close_ev when tls_close() returns TLS_WANT_POLLIN/OUT
in those cases we need to reschedule the function and return, instead of going on with the cleanup.
properly handle handshake failures
If a TLS handshake fails there's nothing we can do, so don't attempt to reply an error (the connected client is not speaking Gemini as it's not using TLS at all) and instead just close the connection. Fixes issue #13
don't match host if connecting from the wrong socket
limit how one given virtual host can be reached based on its `listen on' lists