- use '?' instead of if statements for assignment;

- use '?' instead of if statements for assignment;
- fix indentation in a few places
- use a variable to store the 'other' channel, thus removing
  the need for some duplicated code;
- use '=' instead of memcpy to copy struct sockaddr_in

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@20197 65c4cc65-6c06-0410-ace0-fbb531ad65f3