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1 | ;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function. |
2 | ;# |
3 | ;# Waldemar Kebsch, Federal Republic of Germany, November 1988 |
4 | ;# kebsch.pad@nixpbe.UUCP |
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5 | ;# Modified March 1990, Feb 1991 to properly handle timezones |
6 | ;# $Id: ctime.pl,v 1.8 91/02/04 18:28:12 hakanson Exp $ |
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7 | ;# Marion Hakanson (hakanson@cse.ogi.edu) |
8 | ;# Oregon Graduate Institute of Science and Technology |
9 | ;# |
10 | ;# usage: |
11 | ;# |
12 | ;# #include <ctime.pl> # see the -P and -I option in perl.man |
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13 | ;# $Date = &ctime(time); |
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14 | |
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15 | CONFIG: { |
16 | package ctime; |
17 | |
18 | @DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat'); |
19 | @MoY = ('Jan','Feb','Mar','Apr','May','Jun', |
20 | 'Jul','Aug','Sep','Oct','Nov','Dec'); |
21 | } |
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22 | |
23 | sub ctime { |
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24 | package ctime; |
25 | |
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26 | local($time) = @_; |
27 | local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst); |
28 | |
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29 | # Determine what time zone is in effect. |
30 | # Use GMT if TZ is defined as null, local time if TZ undefined. |
31 | # There's no portable way to find the system default timezone. |
32 | |
33 | $TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : ''; |
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34 | ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = |
35 | ($TZ eq 'GMT') ? gmtime($time) : localtime($time); |
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36 | |
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37 | # Hack to deal with 'PST8PDT' format of TZ |
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38 | # Note that this can't deal with all the esoteric forms, but it |
39 | # does recognize the most common: [:]STDoff[DST[off][,rule]] |
40 | |
41 | if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){ |
42 | $TZ = $isdst ? $4 : $1; |
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43 | } |
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44 | $TZ .= ' ' unless $TZ eq ''; |
45 | |
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46 | $year += ($year < 70) ? 2000 : 1900; |
47 | sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n", |
48 | $DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year); |
49 | } |
50 | 1; |