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https://github.com/systemd/systemd-stable.git
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33084f1e2a
Optimize the scripts reflecting the now more powerful rule logic,
cause we can combine all known fields now in any order:
The ide-devfs.sh is only executed if the kernel name matches with 'hd*':
BUS="ide", KERNEL="hd*", PROGRAM="/etc/udev/ide-devfs.sh %k %b %n", NAME="%k", SYMLINK="%1c %2c"
The name_cdrom.pl is only executed for ide and scsi devices, but not for a partition.
It exits with nonzero to skip the rule if the CD is not found:
KERNEL="[hs]d[a-z]", PROGRAM="name_cdrom.pl %M %m", NAME="%1c", SYMLINK="cdrom"
47 lines
1.2 KiB
Perl
47 lines
1.2 KiB
Perl
#!/usr/bin/perl
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# a horribly funny script that shows how flexible udev can really be
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# This is to be executed by udev with the following rules:
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# KERNEL="[hs]d[a-z]", PROGRAM="name_cdrom.pl %M %m", NAME="%1c", SYMLINK="cdrom"
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use strict;
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use warnings;
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use CDDB_get qw( get_cddb );
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my $dev_node = "/tmp/cd_foo";
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# following variables just need to be declared if different from defaults
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my %config;
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$config{CDDB_HOST}="freedb.freedb.org"; # set cddb host
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$config{CDDB_PORT}=8880; # set cddb port
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$config{CDDB_MODE}="cddb"; # set cddb mode: cddb or http
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$config{CD_DEVICE}="$dev_node"; # set cd device
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# No user interaction, this is a automated script!
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$config{input}=0;
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my $major = $ARGV[0];
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my $minor = $ARGV[1];
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# create our temp device node to read the cd info from
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unlink($dev_node);
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if (system("mknod $dev_node b $major $minor")) {
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die "bad mknod failed";
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}
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# get it on
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my %cd=get_cddb(\%config);
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# remove the dev node we just created
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unlink($dev_node);
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# print out our cd name if we have found it or skip rule by nonzero exit
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if (defined $cd{title}) {
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$cd{artist} =~ s/ /_/g;
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$cd{title} =~ s/ /_/g;
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print "$cd{artist}-$cd{title}\n";
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} else {
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exit -1;
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}
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