Decode Snmp Trap

Hi,

I'd like to receive Snmp traps in a C++ application.
In order to do that, I've open a socket listening on the port udp 162.
My application receive the traps, but I don't know how to decode them.

For example, if I send :
snmptrap -v 1 -c evitech 127.0.0.1 UCD-TRAP-TEST-MIB::demotraps "" 6
17 "" SNMPv2-MIB::sysLocation.0 s "Just here"

I receive (in hexa) :
30 45 2 1 0 4 7 65 76 69 74 65 63 68 a4 37 6 a 2b 6 1 4 1 8f 65 d 87
5e 40 4 c0 a8 a 46 2 1 6 2 1 11 43 4 0 b8 5e 63 30 17 30 15 6 8 2b 6 1
2 1 1 6 0 4 9 4a 75 73 74 20 68 65 72 65

If I translate that in char, I can read the community name (evitech)
and the string "just here".


Did someone know if there is any method in the net-snmp library which
decode the trap, and give all the informations logged by snmptrapd
(particulary OID and values of the variables).
I sought in the source code of snmptrapd but did'nt found anything.

Thanks for your help.

Violette

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