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From: meulenbr@cstw01.UUCP (Frans Meulenbroeks)
Newsgroups: comp.os.minix
Subject: commands/date.c bug + fix
Message-ID: <321@cstw01.UUCP>
Date: 2 Jan 89 08:57:50 GMT
Reply-To: meulenbr@cst.UUCP ()
Organization: Centre for Software Technology, Philips Eindhoven
Lines: 61

Happy New Year with much minix!

As probably all people dedicated to minix have noticed there is a bug in
the date program from minix (at least in the ST version, but I think
that it appears in the PC version as well).

The problem is that date does not work properly on 12/31 on leap years.
(like 12/31/88). This is due to a bug in the cv_time module.
The (untested) shar at the end cures this problem.

I got also a bug report that cc would not work properly on this day.
I have not been able to verify this. The person who told me about this,
said that it happened on an ST. I'm unsure if this happens on a PC as
well.

Something unrelated:
Is someone aware of a PD SCCS/RCS clone/alternative?
Any pointers would be appreciated greatly.

Frans (.sig at end)

#	This is a shell archive.
#	Remove everything above and including the cut line.
#	Then run the rest of the file through sh.
-----cut here-----cut here-----cut here-----cut here-----
#!/bin/sh
# shar:	Shell Archiver
#	Run the following text with /bin/sh to create:
#	date.cdiff
# This archive created: Mon Jan  2 09:51:45 1989
sed 's/^X//' << \SHAR_EOF > date.cdiff
X*** date.c.orig	Mon Jan  2 09:46:53 1989
X--- date.c	Mon Jan  2 09:47:48 1989
X*************** long t
X*** 65,72 ****
X    while (t >= s_p_year) {
X  	if (((tm.year + 2) % 4) == 0)
X  		t -= s_p_day;
X! 	tm.year += 1;
X! 	t -= s_p_year;
X    }
X    if (((tm.year + 2) % 4) == 0)
X  	days_per_month[1]++;
X--- 65,74 ----
X    while (t >= s_p_year) {
X  	if (((tm.year + 2) % 4) == 0)
X  		t -= s_p_day;
X!   	if (t >= s_p_year) {
X! 		tm.year += 1;
X! 		t -= s_p_year;
X! 	}
X    }
X    if (((tm.year + 2) % 4) == 0)
X  	days_per_month[1]++;
SHAR_EOF
#	End of shell archive
exit 0
-- 
Frans Meulenbroeks        (meulenbr@cst.prl.philips.nl)
	Centre for Software Technology
	( or try: ...!mcvax!philmds!prle!cst!meulenbr)