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author | brian <brian@FreeBSD.org> | 1999-08-06 01:34:03 +0000 |
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committer | brian <brian@FreeBSD.org> | 1999-08-06 01:34:03 +0000 |
commit | c30dbdad409cd53e92bf96fd3ea9a6f32a7cb0d1 (patch) | |
tree | a3b7e7ca71742bf1d7a8a6cb7194c497c6432247 | |
parent | e5383f7b660af042d37cfe129a2ef515dce8722e (diff) | |
download | FreeBSD-src-c30dbdad409cd53e92bf96fd3ea9a6f32a7cb0d1.zip FreeBSD-src-c30dbdad409cd53e92bf96fd3ea9a6f32a7cb0d1.tar.gz |
If the clock is put back, ensure that we don't end up dividing by
zero when calculating our throughput
-rw-r--r-- | usr.sbin/ppp/throughput.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/usr.sbin/ppp/throughput.c b/usr.sbin/ppp/throughput.c index dd1b24f..af3b09a 100644 --- a/usr.sbin/ppp/throughput.c +++ b/usr.sbin/ppp/throughput.c @@ -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; } |