Ethereal-cvs: [Ethereal-cvs] cvs commit: ethereal packet-udp.c packet-tcp.c packet-sctp.c

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From: Guy Harris <guy@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 8 Jun 2002 16:54:53 -0500 (CDT)
guy         2002/06/08 16:54:53 CDT

  Modified files:
    .                    packet-udp.c packet-tcp.c packet-sctp.c 
  Log:
  When looking for dissectors for the source and destination port numbers
  in TCP, UDP, and SCTP, try the lower port number first, and then the
  higher port number; this means that, for packets where a dissector is
  registered for *both* port numbers:
  
  	1) we pick the same dissector for traffic going in both directions;
  
  	2) we prefer the port number that's more likely to be the right
  	   one (as that prefers well-known ports to reserved ports);
  
  although there is, of course, no guarantee that any such strategy will
  always pick the right port number.
  
  Ignore port numbers of 0, as some dissectors use a port number of 0 to
  disable the port, and as RFC 768 says that the source port in UDP
  datagrams is optional and is 0 if not used.
  
  Revision  Changes    Path
  1.103     +30 -4     ethereal/packet-udp.c
  1.144     +29 -4     ethereal/packet-tcp.c
  1.38      +44 -17    ethereal/packet-sctp.c