+----------------------------------------------------------------------------+ | | | This man page documents libpcap version 1.11.0-PRE-GIT. | | | | Your system may have a different version installed, possibly with some | | local modifications. To achieve the best results, please make sure this | | version of this man page suits your needs. If necessary, try to look for | | a different version on this web site or in the man pages available in your | | installation. | | | +----------------------------------------------------------------------------+ PCAP_FILENO(3PCAP) PCAP_FILENO(3PCAP) NAME pcap_fileno - get the file descriptor for a live capture SYNOPSIS #include int pcap_fileno(pcap_t *p); DESCRIPTION If p refers to a network device that was opened for a live capture us- ing a combination of pcap_create(3PCAP) and pcap_activate(3PCAP), or using pcap_open_live(3PCAP), 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(3PCAP) or pcap_fopen_offline(3PCAP), a ``dead'' pcap_t opened using pcap_open_dead(3PCAP), or a pcap_t that was created with pcap_create() but that has not yet been activated with pcap_acti- vate(), it returns PCAP_ERROR. SEE ALSO pcap(3PCAP) 25 July 2018 PCAP_FILENO(3PCAP)