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Fix a coredump with negative (due to overflow) offset values.

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This commit is contained in:
Ruslan Ermilov 1999-06-18 14:26:07 +00:00
parent 08da4867ae
commit 966ea00a57
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=48004
1 changed files with 4 additions and 3 deletions
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7
sbin/shutdown/shutdown.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)shutdown.c 8.4 (Berkeley) 4/28/95";
#endif
static const char rcsid[] =
"$Id: shutdown.c,v 1.15 1998/12/11 11:04:19 bde Exp $";
"$Id: shutdown.c,v 1.16 1998/12/11 11:21:47 bde Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -232,7 +232,7 @@ loop()
if (tp->timeleft < offset)
(void)sleep((u_int)(offset - tp->timeleft));
else {
while (offset < tp->timeleft)
while (tp->timeleft && offset < tp->timeleft)
++tp;
/*
* Warn now, if going to sleep more than a fifth of
@ -392,7 +392,8 @@ getoffset(timearg)
if (*timearg == '+') { /* +minutes */
if (!isdigit(*++timearg))
badtime();
offset = atoi(timearg) * 60;
if ((offset = atoi(timearg) * 60) < 0)
badtime();
shuttime = now + offset;
return;
}