bufferevent_socket_connect{,_hostname}() missing event callback and use ret code

- When socket() failed in bufferevent_socket_connect() , the event
  callback should be called also in
  bufferevent_socket_connect_hostname().  eg. when use
  bufferevent_socket_connect_hostname() to resolve and connect an IP
  address but process have a smaller ulimit open files, socket() fails
  always but caller is not notified.

- Make bufferevent_socket_connect()'s behavior more consistent: function
  return error then no callback, function return ok then error passed by
  event callback.

Fixes: #597
Closes: #599
Closes: #600

0 files changed, 0 insertions, 0 deletions