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Man Pages


Manual Reference Pages  -  PCAP_FILENO (3)

NAME

pcap_fileno - get the file descriptor for a live capture

CONTENTS

Synopsis
Description
See Also

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(3), pcap_create(3), pcap_activate(3), pcap_open_live(3), pcap_open_offline(3), pcap_fopen_offline(3), pcap_open_dead(3)
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--> PCAP_FILENO (3) 5 April 2008

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