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by Kimmo Suominen.
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pcap_set_timeout - set the read timeout for a not-yet-activated capture
int pcap_set_timeout(pcap_t *p, int to_ms);
pcap_set_timeout() sets the read timeout that will be used on a capture
handle when the handle is activated to to_ms, which is in units of mil-
The behavior, if the timeout isn't specified, is undefined. We recom-
mend always setting the timeout to a non-zero value unless immediate
mode is set, in which case the timeout has no effect.
pcap_set_timeout() returns 0 on success or PCAP_ERROR_ACTIVATED if
called on a capture handle that has been activated.
pcap(3), pcap_create(3), pcap_activate(3), pcap_set_immediate_mode(3)
1 December 2015 PCAP_SET_TIMEOUT(3)