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#!/usr/local/cpanel/3rdparty/bin/perl
# cpanel - scripts/dnsqueuecron Copyright 2022 cPanel, L.L.C.
# All rights reserved.
# copyright@cpanel.net http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited
exit unless ( -x '/usr/bin/crontab' );
my $crontab = `/usr/bin/crontab -l`;
my $old_cron_line = '*/15 * * * * /usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1';
exit if ( $crontab =~ /dnsqueue/i && $crontab !~ /\Q$old_cron_line\E/ );
my $time = int( rand(15) );
my $timespec = $time . ',' . ( $time + 15 ) . ',' . ( $time + 30 ) . ',' . ( $time + 45 );
my $new_cron_line = $timespec . ' * * * * /usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1';
my @CRONTAB = split( /\n/, $crontab );
# Case 8514 implies this is still necessary on some systems
@CRONTAB = grep( !/^#/, @CRONTAB );
open( CRONTAB, "|/usr/bin/crontab -" );
my $updated = 0;
foreach my $line (@CRONTAB) {
if ( $line =~ /\Q$old_cron_line\E/ ) {
$line =~ s/\Q$old_cron_line\E/$new_cron_line/;
$updated = 1;
}
print CRONTAB $line . "\n";
}
unless ($updated) {
print CRONTAB $new_cron_line . "\n";
}
close(CRONTAB);