;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function.
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: the POSIX ctime function
;#
;# Waldemar Kebsch, Federal Republic of Germany, November 1988
;# kebsch.pad@nixpbe.UUCP
-;# Modified March 1990 to better handle timezones
-;# $Id: ctime.pl,v 1.3 90/03/22 10:49:10 hakanson Exp $
+;# Modified March 1990, Feb 1991 to properly handle timezones
+;# $RCSfile: ctime.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:47 $
;# Marion Hakanson (hakanson@cse.ogi.edu)
;# Oregon Graduate Institute of Science and Technology
;#
;# #include <ctime.pl> # see the -P and -I option in perl.man
;# $Date = &ctime(time);
-@DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
-@MoY = ('Jan','Feb','Mar','Apr','May','Jun',
- 'Jul','Aug','Sep','Oct','Nov','Dec');
+CONFIG: {
+ package ctime;
+
+ @DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
+ @MoY = ('Jan','Feb','Mar','Apr','May','Jun',
+ 'Jul','Aug','Sep','Oct','Nov','Dec');
+}
sub ctime {
+ package ctime;
+
local($time) = @_;
+ local($[) = 0;
local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);
- # Use GMT if can't find local TZ
- $TZ = defined($ENV{'TZ'}) ? $ENV{'TZ'} : 'GMT';
+ # Determine what time zone is in effect.
+ # Use GMT if TZ is defined as null, local time if TZ undefined.
+ # There's no portable way to find the system default timezone.
+
+ $TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : '';
($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
($TZ eq 'GMT') ? gmtime($time) : localtime($time);
+
# Hack to deal with 'PST8PDT' format of TZ
- if ( $TZ =~ /-?\d+/ ) {
- $TZ = $isdst ? $' : $`;
+ # Note that this can't deal with all the esoteric forms, but it
+ # does recognize the most common: [:]STDoff[DST[off][,rule]]
+
+ if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){
+ $TZ = $isdst ? $4 : $1;
}
- $TZ .= " " unless $TZ eq "";
- $year += ($year < 70) ? 2000 : 1900;
+ $TZ .= ' ' unless $TZ eq '';
+
+ $year += 1900;
sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n",
$DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year);
}