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PCAP_FILENO

Section: Misc. Reference Manual Pages (3PCAP)
Updated: 3 November 2009
Index Return to Main Contents
 

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() and pcap_activate(), or using pcap_open_live(), 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() or pcap_fopen_offline(), a ``dead'' pcap_t opened using pcap_open_dead(), or a pcap_t that was created with pcap_create() but that has not yet been activated with pcap_activate(), it returns -1.  

SEE ALSO

pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP), pcap_open_live(3PCAP), pcap_open_offline(3PCAP), pcap_fopen_offline(3PCAP), pcap_open_dead(3PCAP)


 

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NAME
SYNOPSIS
DESCRIPTION
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