pcap_fileno(3) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
PCAP_FILENO(3)                                                  PCAP_FILENO(3)




NAME
pcap_fileno - get the file descriptor for a live capture
SYNOPSIS
#include <pcap/pcap.h> int pcap_fileno(pcap_t *p);
DESCRIPTION
If p refers to a network device that was opened for a live capture using a combination of pcap_create(3) and pcap_activate(3), or using pcap_open_live(3), pcap_fileno() returns the file descriptor from which captured packets are read. If p refers to a ``savefile'' that was opened using functions such as pcap_open_offline(3) or pcap_fopen_offline(3), a ``dead'' pcap_t opened using pcap_open_dead(3), or a pcap_t that was created with pcap_cre- ate() but that has not yet been activated with pcap_activate(), it returns PCAP_ERROR.
SEE ALSO
pcap(3) 25 July 2018 PCAP_FILENO(3)
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