+ dbg('cron', "reading $fn\n");
+ open($fh, $fn) or confess("can't open $fn $!");
+ @crontab = (); # clear out the old stuff
+ while (<$fh>) {
+ $line++;
+
+ next if /^\s*#/o or /^\s*$/o;
+ my ($min, $hour, $mday, $month, $wday, $cmd) = /^\s*(\w+)\s+(\w+)\s+(\w+)\s+(\w+)\s+(\w+)\s+(.+)$/o;
+ next if !$min;
+ my $ref = bless {};
+ my $err;
+
+ $err |= parse($ref, 'min', $min, 0, 60);
+ $err |= parse($ref, 'hour', $hour, 0, 23);
+ $err |= parse($ref, 'mday', $mday, 1, 31);
+ $err |= parse($ref, 'month', $month, 1, 12, "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec");
+ $err |= parse($ref, 'wday', $wday, 0, 6, "sun", "mon", "tue", "wed", "thu", "fri", "sat");
+ if (!$err) {
+ $ref->{cmd} = $cmd;
+ push @crontab, $ref;
+ dbg('cron', "adding $_\n");
+ } else {
+ dbg('cron', "error on line $line '$_'\n");
+ }
+ }
+ close($fh);
+}
+
+sub parse
+{
+ my $ref = shift;
+ my $sort = shift;
+ my $val = shift;
+ my $low = shift;
+ my $high = shift;
+ my @req;
+
+ # handle '*' values
+ if ($val eq '*') {
+ $ref->{$sort} = 0;
+ return 0;
+ }
+
+ # handle comma delimited values
+ my @comma = split /,/o, $val;
+ for (@comma) {
+ my @minus = split /-/o;
+ if (@minus == 2) {
+ return 1 if $minus[0] < $low || $minus[0] > $high;
+ return 1 if $minus[1] < $low || $minus[1] > $high;
+ my $i;
+ for ($i = $minus[0]; $i <= $minus[1]; ++$i) {
+ push @req, 0 + $i;
+ }
+ } else {
+ return 1 if $_ < $low || $_ > $high;
+ push @req, 0 + $_;
+ }
+ }
+ return 0;