plugins/perl/i-scream_osver.pl

#!/usr/bin/perl -w

#-----------------------------------------------------------------
# i-scream host plugin - os details and version
#     $Author: tdb $
#     $Id: i-scream_osver.pl,v 1.1 2001/11/19 21:42:11 tdb Exp $
#
# A short perl script to grab the os version etc
#-----------------------------------------------------------------


$| = 1;


# You'd be silly not to use this ;)
use strict;

# Get the OS type from the args, or try towork it out
my($ostype) = $ARGV[0];
$ostype = `uname -s` if not defined $ostype;
chomp($ostype);

# Decide which paths we should use.
my($unamebin);
if ($ostype eq "SunOS" || $ostype eq "FreeBSD") {
    # covers: Solaris 7/8
    # covers: FreeBSD 4.X
    $unamebin = "/usr/bin/uname";
}
elsif ($ostype eq "Linux") {
    # covers: Debian r2.2
    $unamebin = "/bin/uname";
}
else {
    print "i-scream_osver.pl Error: Unable to identify system type - \"$ostype\".\n";
    print "\"uname -s\" does not report one of the following known types;\n";
    print "      SunOS, Linux, FreeBSD\n";
    exit(1);
}

# Run the following components: -
&include_osver();

# End the program normally.
exit(0);


# sub to print pairs of data, separated by a single space character.
# If the second argument is undefined, then the pair is still printed,
# however, the value shall be displayed as the the 'default' value
# if the passed value was undefined.
sub print_pair($$$) {
    my($default, $name, $value) = @_;

    if (!defined $value) {
        $value = $default;
    }

    # Remove the trailing linefeed if we've not already done so.
    chomp($value);

    # print the pair of data with a space inbetween.
    print "$name $value\n";
}

# sub to get details of the machine's operating system.
sub include_osver() {

    # Find out details about the operating system
    # If these values remain undefined, then the print_pair
    # function shall show the value to be the string "unknown".
    my($os_name) = `$unamebin -s`;
    my($os_release) = `$unamebin -r`;
    my($os_platform) = `$unamebin -m`;
    my($os_sysname) = `$unamebin -n`;
    my($os_version) = `$unamebin -v`;

    &print_pair("unknown", "packet.os.name", $os_name);
    &print_pair("unknown", "packet.os.release", $os_release);
    &print_pair("unknown", "packet.os.platform", $os_platform);
    &print_pair("unknown", "packet.os.sysname", $os_sysname);
    &print_pair("unknown", "packet.os.version", $os_version);

}
Revision:	1.2
Committed:	Tue Dec 18 04:07:17 2001 UTC (24 years ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+6 -12 lines
Log Message:	Solaris process accounting made me notice the number of times `uname` was being called. It was way over the top, especially as it's unlikely to change during an invocation of ihost :) Before it was run by each plugin every time they were run - in total 50 times a minute :/ Now, it's run once by ihost at startup, and that's it. The value read at startup is passed as a command line argument to each plugin. The plugins can fallback on working out the ostype using `uname` if they don't get given one on the command line.
#	Content
1	#!/usr/bin/perl -w
2
3	#-----------------------------------------------------------------
4	# i-scream host plugin - os details and version
5	# $Author: tdb $
6	# $Id: i-scream_osver.pl,v 1.1 2001/11/19 21:42:11 tdb Exp $
7	#
8	# A short perl script to grab the os version etc
9	#-----------------------------------------------------------------
10
11
12	$\| = 1;
13
14
15	# You'd be silly not to use this ;)
16	use strict;
17
18	# Get the OS type from the args, or try towork it out
19	my($ostype) = $ARGV[0];
20	$ostype = `uname -s` if not defined $ostype;
21	chomp($ostype);
22
23	# Decide which paths we should use.
24	my($unamebin);
25	if ($ostype eq "SunOS" \|\| $ostype eq "FreeBSD") {
26	# covers: Solaris 7/8
27	# covers: FreeBSD 4.X
28	$unamebin = "/usr/bin/uname";
29	}
30	elsif ($ostype eq "Linux") {
31	# covers: Debian r2.2
32	$unamebin = "/bin/uname";
33	}
34	else {
35	print "i-scream_osver.pl Error: Unable to identify system type - \"$ostype\".\n";
36	print "\"uname -s\" does not report one of the following known types;\n";
37	print " SunOS, Linux, FreeBSD\n";
38	exit(1);
39	}
40
41	# Run the following components: -
42	&include_osver();
43
44	# End the program normally.
45	exit(0);
46
47
48
49
50	# sub to print pairs of data, separated by a single space character.
51	# If the second argument is undefined, then the pair is still printed,
52	# however, the value shall be displayed as the the 'default' value
53	# if the passed value was undefined.
54	sub print_pair($$$) {
55	my($default, $name, $value) = @_;
56
57	if (!defined $value) {
58	$value = $default;
59	}
60
61	# Remove the trailing linefeed if we've not already done so.
62	chomp($value);
63
64	# print the pair of data with a space inbetween.
65	print "$name $value\n";
66	}
67
68	# sub to get details of the machine's operating system.
69	sub include_osver() {
70
71	# Find out details about the operating system
72	# If these values remain undefined, then the print_pair
73	# function shall show the value to be the string "unknown".
74	my($os_name) = `$unamebin -s`;
75	my($os_release) = `$unamebin -r`;
76	my($os_platform) = `$unamebin -m`;
77	my($os_sysname) = `$unamebin -n`;
78	my($os_version) = `$unamebin -v`;
79
80	&print_pair("unknown", "packet.os.name", $os_name);
81	&print_pair("unknown", "packet.os.release", $os_release);
82	&print_pair("unknown", "packet.os.platform", $os_platform);
83	&print_pair("unknown", "packet.os.sysname", $os_sysname);
84	&print_pair("unknown", "packet.os.version", $os_version);
85
86	}