Author: brueffer
Date: Mon Jul 13 11:59:28 2015
New Revision: 285447
URL: https://svnweb.freebsd.org/changeset/base/285447
Log:
MFC: r284931
Set the initial system time to a sane (as in: not end of 21st century)
value when booting on a PC with CMOS clock set to a year before 2000.
This uses 1980 (instead of 1970 as in the initial patch) as pivot year as
suggested by imp in the PR followup.
PR: 195703
Submitted by: c...@soi.spb.ru
Reviewed by: imp
Modified:
stable/9/sys/x86/isa/atrtc.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/x86/isa/atrtc.c
==============================================================================
--- stable/9/sys/x86/isa/atrtc.c Mon Jul 13 11:58:08 2015
(r285446)
+++ stable/9/sys/x86/isa/atrtc.c Mon Jul 13 11:59:28 2015
(r285447)
@@ -354,7 +354,7 @@ atrtc_gettime(device_t dev, struct times
#ifdef USE_RTC_CENTURY
ct.year += readrtc(RTC_CENTURY) * 100;
#else
- ct.year += 2000;
+ ct.year += (ct.year < 80 ? 2000 : 1900);
#endif
/* Set dow = -1 because some clocks don't set it correctly. */
ct.dow = -1;
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