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If the clock is put back, ensure that we don't end up dividing by

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zero when calculating our throughput
This commit is contained in:
Brian Somers 1999-08-06 01:34:03 +00:00
parent d72e8db88f
commit dbb69e525e
1 changed files with 10 additions and 1 deletions
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11
usr.sbin/ppp/throughput.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: throughput.c,v 1.9 1999/05/08 11:07:47 brian Exp $
* $Id: throughput.c,v 1.10 1999/08/05 10:32:15 brian Exp $
*/
#include <sys/types.h>
@ -75,6 +75,15 @@ throughput_uptime(struct pppThroughput *t)
time_t downat;
downat = t->downtime ? t->downtime : time(NULL);
if (t->uptime && downat < t->uptime) {
/* Euch ! The clock's gone back ! */
int i;
for (i = 0; i < t->SamplePeriod; i++)
t->SampleOctets[i] = 0;
t->nSample = 0;
t->uptime = downat;
}
return t->uptime ? downat - t->uptime : 0;
}