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Man Pages


Manual Reference Pages  -  PCAP_CREATE (3)

NAME

pcap_create - create a live capture handle

CONTENTS

Synopsis
Description
Return Value
See Also

SYNOPSIS


#include <pcap/pcap.h>


char errbuf[PCAP_ERRBUF_SIZE];

pcap_t *pcap_create(const char *source, char *errbuf);

DESCRIPTION

pcap_create() is used to create a packet capture handle to look at packets on the network. source is a string that specifies the network device to open; on Linux systems with 2.2 or later kernels, a source argument of "any" or NULL can be used to capture packets from all interfaces.

The returned handle must be activated with pcap_activate() before packets can be captured with it; options for the capture, such as promiscuous mode, can be set on the handle before activating it.

RETURN VALUE

pcap_create() returns a pcap_t * on success and NULL on failure. If NULL is returned, errbuf is filled in with an appropriate error message. errbuf is assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.

SEE ALSO

pcap(3), pcap_activate(3)
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--> PCAP_CREATE (3) 5 April 2008

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