Exit from session loop upon error (ie: they disconnected) and don't do any...

Exit from session loop upon error (ie: they disconnected) and don't do any buffer manipulation in do_message. get_input will handle it.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@50629 65c4cc65-6c06-0410-ace0-fbb531ad65f3