beginning.
Pass "pinfo->fd", not "fd", to "p_get_proto_data()", so that it'll
continue to work even when tvbuffified.
Use "strchr()", not "index()" - "strchr()" is in the ANSI C standard,
and may be in some systems that don't have "index()", whereas those
systems that had "index()" but not "strchr()" got with the ANSI C
program a while ago.
Use "old_dissector_add()" and "old_dissector_delete()" to register and
unregister the SMTP dissector, as it's not yet been tvbuffified.
svn path=/trunk/; revision=2303
Richard Sharpe