#!USR/BIN/PERL
;# timelocal.pl
;#
;# Usage:
CONFIG: {
    package timelocal;
    local($[) = 0;
    @epoch = localtime(0);
    $tzmin = $epoch[2] * 60 + $epoch[1];	
    if ($tzmin > 0) {
	$tzmin = 24 * 60 - $tzmin;		
	$tzmin -= 24 * 60 if $epoch[5] == 70;	
    }
    $SEC = 1;
    $MIN = 60 * $SEC;
    $HR = 60 * $MIN;
    $DAYS = 24 * $HR;
    $YearFix = ((gmtime(946684800))[5] == 100) ? 100 : 0;
    1;
}
sub timegm {
    package timelocal;
    local($[) = 0;
    $ym = pack(C2, @_[5,4]);
    $cheat = $cheat{$ym} || &cheat;
    $cheat + $_[0] * $SEC + $_[1] * $MIN + $_[2] * $HR + ($_[3]-1) * $DAYS;
}
sub timelocal {
    package timelocal;
    local($[) = 0;
    $time = &main'timegm + $tzmin*$MIN;
    @test = localtime($time);
    $time -= $HR if $test[2] != $_[2];
    $time;
}
package timelocal;
sub cheat {
    $year = $_[5];
    $month = $_[4];
    die "Month out of range 0..11 in ctime.pl\n" if $month > 11;
    $guess = $^T;
    @g = gmtime($guess);
    $year += $YearFix if $year < $epoch[5];
    while ($diff = $year - $g[5]) {
	$guess += $diff * (363 * $DAYS);
	@g = gmtime($guess);
    }
    while ($diff = $month - $g[4]) {
	$guess += $diff * (27 * $DAYS);
	@g = gmtime($guess);
    }
    $g[3]--;
    $guess -= $g[0] * $SEC + $g[1] * $MIN + $g[2] * $HR + $g[3] * $DAYS;
    $cheat{$ym} = $guess;
}
1;