#!/usr/bin/perl -w
##
## Usage: find-process name host [community]
##
## List the PID(s) of processes of a given NAME running on a given
## HOST, using SNMP community COMMUNITY.
##
## Uses the "sun-snmp" MIB according to /var/snmp/mibs/sun.mib in
## Solstice Enterprise Agents.
##
use strict;

use SNMP_Session;
use BER;

my $proc_name = shift @ARGV || usage (1);
my $host = shift @ARGV || usage (1);
my $community = shift @ARGV || 'public';

my $psProcessID = [1,3,6,1,4,1,42,3,12,1,1,1];
my $psProcessProcessName = [1,3,6,1,4,1,42,3,12,1,1,10];

my $session = SNMP_Session->open ($host, $community, 161);
$session->map_table ([$psProcessProcessName],
		     sub
		     {
			 my ($index, $name);
			 $index = shift @_;
			 grep (defined $_ && ($_=pretty_print $_), @_);
			 ($name) = @_;
			 print STDOUT $index,"\n" if $name eq $proc_name;
		     })
    || warn "Problem walking process table";
$session->close ()
    || warn "Problem closing SNMP_Session";
1;

sub usage ($) {
    warn "usage: $0 host [community]\n";
    exit $_[0] if $_[0];
}