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97 lines
2.0 KiB
Perl
97 lines
2.0 KiB
Perl
# $Id$
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package main;
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use strict;
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use warnings;
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# define items and where/how they can be found
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my %handles = (
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# for each item define something like this:
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# ITEM => [
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# 'path containing the data we need',
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# 'regular expression matching the (bits) we need',
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# sub { to process the bits found by the regex },
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# ],
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# Clock frequency of CPU in Hz, e.g. 800000
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CPU0FREQ => [
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'/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq',
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'(\d+)',
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sub { shift },
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],
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# Clock frequency of CPU in Hz, e.g. 800000
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CPU1FREQ => [
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'/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq',
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'(\d+)',
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sub { shift },
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],
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# MAC address of wired ethernet connection
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LMAC => [
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'/sys/class/net/eth0/address',
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'(.*)',
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sub { shift },
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],
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# MAC address of wireless ethernet connection
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WMAC => [
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'/sys/class/net/wlan0/address',
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'(.*)',
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sub { shift },
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],
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# Serial number
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SERIAL => [
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'/proc/cpuinfo',
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'Serial\s+:\s+(\S+)\s*$',
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sub { shift },
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],
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# Revision id
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REV => [
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'/proc/cpuinfo',
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'Revision\s+:\s+(\S+)\s*$',
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sub { shift },
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],
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);
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sub CT {
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my $item = uc(shift); # not case sensitive
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my $value = undef; # result is undef unless success
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# if we know how to find the requested item
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if ( exists $handles{$item} ) {
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# open file
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if ( open my $fh, $handles{$item}[0] ) {
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my $regex = $handles{$item}[1];
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while ( <$fh> ) {
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# regex matches: process and set resulting value
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/$regex/ and $value = &{$handles{$item}[2]}($1) and last;
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}
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close $fh;
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}
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# complain: failed to open file
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else {
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warn "Could not read $item: $!\n";
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}
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}
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# complain: don't know requested item
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else {
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warn "Don't know how to find $item\n";
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}
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return $value;
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};
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sub CT_Initialize($) {
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my ($hash) = @_;
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}
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1; |