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43 lines
1.2 KiB
Perl
Executable File
43 lines
1.2 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# Quick hack to convert /etc/bootptab to format required by ISC DHCPD
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# This only outputs the fixed hosts portion of the config file
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# You still have to provide the global options and the subnet scoping
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#
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# Turn $useipaddr on if you prefer to use IP addresses in the config file
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# I run DNS so I prefer domain names
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$useipaddr = 0;
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# This will be appended to get the FQDN unless the hostname is already FQDN
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$domainname = "ken.com.au";
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$tftpdir = "/tftpdir/";
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open(B, "/etc/bootptab") or die "/etc/bootptab: $!\n";
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while(<B>) {
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if (/^[^a-z]/) {
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$prevline = $_;
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next;
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}
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chomp($_);
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($hostname, @tags) = split(/:/, $_, 5);
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($fqdn = $hostname) .= ".$domainname" unless($hostname =~ /\./);
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($macaddr) = grep(/^ha=/, @tags);
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$macaddr =~ s/ha=//;
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$macaddr =~ s/(..)(..)(..)(..)(..)(..)/$1:$2:$3:$4:$5:$6/g;
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($ipaddr) = grep(/^ip=/, @tags);
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$ipaddr =~ s/ip=//;
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($bootfile) = grep(/^bf=/, @tags);
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$bootfile =~ s/bf=//;
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$bootfile = $tftpdir . $bootfile;
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# I have a comment line above most entries and I like to carry this over
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print $prevline if ($prevline =~ /^#/);
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$address = $useipaddr ? $ipaddr : $fqdn;
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print <<EOF
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host $hostname {
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hardware ethernet $macaddr;
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fixed-address $address;
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filename "$bootfile";
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}
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EOF
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;
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$prevline = $_;
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}
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