Richard Huddleston wrote:
Freshly installed FreeBSD 5.4. New user of FreeBSD.
pcap_open_live() fails with a
BIOCSRTIMEOUT: Invalid argument
pcap_open_live( device, BUFSIZ, 1, -1, errbuf )
itimerfix() in the 5.4 kernel does
int
itimerfix(struct timeval *tv)
{
if (tv->tv_sec < 0 || tv->tv_sec > 100000000 ||
tv->tv_usec < 0 || tv->tv_usec >= 1000000)
return (EINVAL);
if (tv->tv_sec == 0 && tv->tv_usec != 0 && tv->tv_usec < tick)
tv->tv_usec = tick;
return (0);
}
so it rejects negative values.
Furthermore, BPF doesn't support negative values for the timeout - the
timeout is, internally to the kernel's BPF implementation, stored as an
*unsigned* variable with a count of clock ticks.
What are you trying to accomplish here?
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