SIP - Lots of regexp hacking of input streams and verbose debugging feedback.

SIP - Lots of regexp hacking of input streams and verbose debugging feedback.

The basic problem is that the SIP logic doesn't know where the
input is coming from.  It might be a RAW socket, and it might
be telnet.  If it is telnet, although the specs declare a
character set (from MS, unfortunately), they do not specify a telnet
implementation.  So you might get telnet handshaking or
renegotiations in the middle of an otherwise peaceful session and
these should not be taken as SIP commands.  Patches include a move
towards using $CRLF from Socket to avoid problems w/ foreign platform
mapping \n and \r to \015 or \012.

Signed-off-by: Joshua Ferraro <jmf@liblime.com>