1;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function.
2#
3# This library is no longer being maintained, and is included for backward
4# compatibility with Perl 4 programs which may require it.
5#
6# In particular, this should not be used as an example of modern Perl
7# programming techniques.
8#
9# Suggested alternative: the POSIX ctime function
10;#
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
17;#
18;# usage:
19;#
20;#     #include <ctime.pl>          # see the -P and -I option in perl.man
21;#     $Date = &ctime(time);
22
23CONFIG: {
24    package ctime;
25
26    @DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
27    @MoY = ('Jan','Feb','Mar','Apr','May','Jun',
28	    'Jul','Aug','Sep','Oct','Nov','Dec');
29}
30
31sub ctime {
32    package ctime;
33
34    local($time) = @_;
35    local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
36
37    # Determine what time zone is in effect.
38    # Use GMT if TZ is defined as null, local time if TZ undefined.
39    # There's no portable way to find the system default timezone.
40
41    $TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : '';
42    ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
43        ($TZ eq 'GMT') ? gmtime($time) : localtime($time);
44
45    # Hack to deal with 'PST8PDT' format of TZ
46    # Note that this can't deal with all the esoteric forms, but it
47    # does recognize the most common: [:]STDoff[DST[off][,rule]]
48
49    if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){
50        $TZ = $isdst ? $4 : $1;
51    }
52    $TZ .= ' ' unless $TZ eq '';
53
54    $year += 1900;
55    sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n",
56      $DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year);
57}
581;
59