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#!/usr/bin/perl -w |
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|
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#----------------------------------------------------------------- |
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# i-scream host plugin - user information collection |
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# $Author: tdb1 $ |
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# $Id: statgrab.pl,v 1.46 2001/11/14 15:18:25 tdb1 Exp $ |
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# |
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# A short perl script to parse the output of the users command. |
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#----------------------------------------------------------------- |
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|
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|
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$| = 1; |
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|
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|
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# You'd be silly not to use this ;) |
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use strict; |
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|
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# Have to hope this will work really. |
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my($ostype) = `uname -s`; chomp($ostype); |
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|
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# Decide which paths we should use. |
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my($usersbin); |
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if ($ostype eq "SunOS") { |
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# covers: Solaris 7/8 |
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$usersbin = "/usr/ucb/users"; |
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} |
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elsif ($ostype eq "Linux" || $ostype eq "FreeBSD") { |
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# covers: Debian r2.2 |
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# covers: FreeBSD 4.X |
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$usersbin = "/usr/bin/users"; |
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} |
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else { |
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print "i-scream_users.pl Error: Unable to identify system type - \"$ostype\".\n"; |
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print "\"uname -s\" does not report one of the following known types;\n"; |
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print " SunOS, Linux, FreeBSD\n"; |
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exit(1); |
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} |
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|
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# Run the following components: - |
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&print_ident(); |
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&include_users(); |
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|
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# End the program normally. |
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exit(0); |
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|
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# prints out an identifier for this version of the script |
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# this could be used in checks further downstream |
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sub print_ident() { |
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print 'packet.plugins.ident.i-scream_users i-scream_users.pl $Revision: 1.46 $'; |
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print "\n"; |
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} |
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|
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# sub to print pairs of data, separated by a single space character. |
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# If the second argument is undefined, then the pair is still printed, |
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# however, the value shall be displayed as the the 'default' value |
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# if the passed value was undefined. |
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sub print_pair($$$) { |
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my($default, $name, $value) = @_; |
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|
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if (!defined $value) { |
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$value = $default; |
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} |
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|
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# Remove the trailing linefeed if we've not already done so. |
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chomp($value); |
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|
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# print the pair of data with a space inbetween. |
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print "$name $value\n"; |
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} |
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|
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|
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# sub to find out the list of all usernames logged |
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# in to the machine and how many there are. |
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sub include_users() { |
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|
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# Find out all users on this machine. |
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my($users) = `$usersbin`; |
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$users = "\n" unless defined $users; |
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chomp $users; |
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my($users_count) = 0; |
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$users_count++ while $users =~ /\w+/g; |
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my($users_list) = $users." "; |
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|
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&print_pair(0, "packet.users.count", $users_count); |
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&print_pair("unknown", "packet.users.list", $users_list); |
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} |
