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Fix overflows in intermediate calculations in sysctl_msec_to_ticks().

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At hz values of 1000 and above the overflows caused net.inet.tcp.keepidle
to be reported as negative.

MFC after:	3 days
This commit is contained in:
John Polstra 2002-07-20 23:48:59 +00:00
parent 69dac2ea47
commit 8ea8a6804b
1 changed files with 2 additions and 2 deletions
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4
sys/netinet/tcp_timer.c
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@ -74,13 +74,13 @@ sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS)
int error, s, tt;
tt = *(int *)oidp->oid_arg1;
s = tt * 1000 / hz;
s = (int)((int64_t)tt * 1000 / hz);
error = sysctl_handle_int(oidp, &s, 0, req);
if (error || !req->newptr)
return (error);
tt = s * hz / 1000;
tt = (int)((int64_t)s * hz / 1000);
if (tt < 1)
return (EINVAL);