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udp help?

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Old 08-13-2004
udp help?
hi all, newbie here, i'm working on mac os x and i'm trying to stream some info using udp from the terminal to another app that listens for osc messages on the same machine. but the man page on udp is pretty cryptic. my question is whether anyone has a recommendation for a good tutorial covering this kind of thing, or some other reference. i understand all the theory and details of networking, just not the actual programming of it. many of the pages i've seen are for people who have no idea what a socket is etc., but it's hard to find some of these odd little practical details for a newbie programmer.

thanks for any help,
barb
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LEARN ABOUT SUSE

straps

straps(8)							 Tnm Tcl Extension							 straps(8)

__________________________________________________________________________________________________________________________________________________

NAME

       straps - A simple SNMP trap multiplexer.

SYNOPSIS

       straps [ port ]
_________________________________________________________________

DESCRIPTION

       The  straps trap daemon listens on the snmp-trap port (usually port 162/udp) for incoming SNMP trap or inform messages and forwards them to
       all connected clients (like scotty). The optional port argument allows to use the straps daemon to forward messages received on a non stan-
       dard SNMP trap port. However, port numbers below 1024 will be rejected.

       Clients connect to the straps daemon by opening the AF_UNIX domain stream socket /tmp/.straps-port. Thus, the default AF_UNIX domain stream
       socket is named /tmp/.straps-162.

       Received messages are forwarded using the following format:

	      4 byte	IP address of the sender (network-byte-order).

	      2 byte	Port number of the sender (network byte order).

	      4 byte	Length of the trap message (host-byte-order).

	      n bytes	The trap message itself.

       The straps daemon must be installed setuid root because normal operating systems require root permissions to open the  standard	SNMP  trap
       port 162/udp. The straps daemon rejects all port numbers below 1024 in order to protect the system security.

SEE ALSO

       scotty(1), tkined(1), Tnm(n)

AUTHORS

       Erik Schoenfelder <schoenfr@gaertner.de>
       Juergen Schoenwaelder <schoenw@cs.utwente.nl>

Tnm																	 straps(8)