problem with NetSNMP::OID

Hello all,

I'm currently modifying our application to use the embedded Perl
module with net-snmp v5.4.2.1 and stumbled upon a problem with
NetSNMP::OID. The problem is very easy to reproduce by adding just two
lines to the code snippet taken from the NetSNMP::TrapReceiver
documentation:

  #!/usr/bin/perl

  use NetSNMP::OID; # FIRST LINE ADDED

  sub my_receiver {
    print "********** PERL RECEIVED A NOTIFICATION:\n";

    # print the PDU info (a hash reference)
    print "PDU INFO:\n";
    foreach my $k(keys(%{$_[0]})) {
      printf "  %-30s %s\n", $k, $_[0]{$k};
    }

    # print the variable bindings:
    print "VARBINDS:\n";
    foreach my $x (@{$_[1]}) {
        printf "  %-30s type=%-2d value=%s\n", $x->[0], $x->[2],
$x->[1];
    }

    my $oid = new NetSNMP::OID('sysContact.0'); # SECOND LINE ADDED
  }

  NetSNMP::TrapReceiver::register("all", \&my_receiver) ||
    warn "failed to register our perl trap handler\n";

  print STDERR "Loaded the example perl snmptrapd handler\n";

Now if I configure snmptrapd to use this piece of code and generate a
trap using

  > snmpinform -v 3 -l $LEVEL -u $USER -a MD5 -A $PASS -x DES \
  -X $PASS $IPADDRESS '' QUANTE-CSS-MIB-V2::rmTrapDownloadCancel \
  QUANTE-CSS-MIB-V2::eventCurrentNumber.0 u `date +%s` \
  QUANTE-CSS-MIB-V2::actualIndex.1 i 1

for the first time, I get the following lines in the output

[UDP: [10.25.153.160]->[10.25.153.160]:35238]:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (269834978) 31 days,
5:32:29.78    SNMPv2-MIB::snmpTrapOID.0 = OID:
QUANTE-CSS-MIB-V2::rmTrapDownloadCancel
QUANTE-CSS-MIB-V2::eventCurrentNumber.0 = Gauge32: 1237823308
QUANTE-CSS-MIB-V2::actualIndex.1 = INTEGER: 1
******** PERL RECEIVED A NOTIFICATION:
<snip>
VARBINDS:
DISMAN-EVENT-MIB::sysUpTimeInstance type=67 value=Timeticks: (269834978)
31 days, 5:32:29.78
SNMPv2-MIB::snmpTrapOID.0      type=6  value=OID:
QUANTE-CSS-MIB-V2::rmTrapDownloadCancel
QUANTE-CSS-MIB-V2::eventCurrentNumber.0 type=66 value=Gauge32:
1237823308
QUANTE-CSS-MIB-V2::actualIndex.1 type=2  value=INTEGER: 1


This looks fine, but when I call the command above a second time,
output changes in the following way:

[UDP: [10.25.153.160]->[10.25.153.160]:35238]:
sysUpTimeInstance 31:5:32:33.36 snmpTrapOID.0 rmTrapDownloadCancel
eventCurrentNumber.0 1237823311      actualIndex.1 1
********** PERL RECEIVED A NOTIFICATION:
<snip>
VARBINDS:
  sysUpTimeInstance              type=67 value=31:5:32:33.36
  snmpTrapOID.0                  type=6  value=rmTrapDownloadCancel
  eventCurrentNumber.0           type=66 value=1237823311
  actualIndex.1                  type=2  value=1

How can I avoid to get a different output formatting?

Regards,
Jens


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