1 ;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function.
3 # This library is no longer being maintained, and is included for backward
4 # compatibility with Perl 4 programs which may require it.
6 # In particular, this should not be used as an example of modern Perl
7 # programming techniques.
9 # Suggested alternative: the POSIX ctime function
11 ;# Waldemar Kebsch, Federal Republic of Germany, November 1988
12 ;# kebsch.pad@nixpbe.UUCP
13 ;# Modified March 1990, Feb 1991 to properly handle timezones
14 ;# $RCSfile: ctime.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:47 $
15 ;# Marion Hakanson (hakanson@cse.ogi.edu)
16 ;# Oregon Graduate Institute of Science and Technology
20 ;# #include <ctime.pl> # see the -P and -I option in perl.man
21 ;# $Date = &ctime(time);
26 @DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
27 @MoY = ('Jan','Feb','Mar','Apr','May','Jun',
28 'Jul','Aug','Sep','Oct','Nov','Dec');
36 local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
38 # Determine what time zone is in effect.
39 # Use GMT if TZ is defined as null, local time if TZ undefined.
40 # There's no portable way to find the system default timezone.
42 $TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : '';
43 ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
44 ($TZ eq 'GMT') ? gmtime($time) : localtime($time);
46 # Hack to deal with 'PST8PDT' format of TZ
47 # Note that this can't deal with all the esoteric forms, but it
48 # does recognize the most common: [:]STDoff[DST[off][,rule]]
50 if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){
51 $TZ = $isdst ? $4 : $1;
53 $TZ .= ' ' unless $TZ eq '';
56 sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n",
57 $DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year);