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Allow 'shutdown datespec' to work into the next century. Handle dates

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in the 22nd century and beyond even though it's irrelevant with a 32-bit
time_t which expires in the year 2038.
This commit is contained in:
Alexander Langer 1998-01-08 02:21:30 +00:00
parent eb794faa90
commit 2dc3422762
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=32328
1 changed files with 12 additions and 1 deletions
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13
sbin/shutdown/shutdown.c
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@ -30,7 +30,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: shutdown.c,v 1.7 1997/06/19 14:28:32 charnier Exp $
* $Id: shutdown.c,v 1.8 1997/08/23 14:10:34 joerg Exp $
*/
#ifndef lint
@ -350,6 +350,7 @@ getoffset(timearg)
register struct tm *lt;
register char *p;
time_t now;
int this_year;
if (!strcasecmp(timearg, "now")) { /* now */
offset = 0;
@ -381,7 +382,17 @@ getoffset(timearg)
switch(strlen(timearg)) {
case 10:
this_year = lt->tm_year;
lt->tm_year = ATOI2(timearg);
/*
* check if the specified year is in the next century.
* allow for one year of user error as many people will
* enter n - 1 at the start of year n.
*/
if (lt->tm_year < (this_year % 100) - 1)
lt->tm_year += 100;
/* adjust for centuries beyond 2000 */
lt->tm_year += (this_year - (this_year % 100));
/* FALLTHROUGH */
case 8:
lt->tm_mon = ATOI2(timearg);