PCAP_CREATE(3PCAP)                                        PCAP_CREATE(3PCAP)

NAME         top

       pcap_create - create a live capture handle

SYNOPSIS         top

       #include <pcap/pcap.h>

       char errbuf[PCAP_ERRBUF_SIZE];

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

DESCRIPTION         top

       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         top

       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         top

       pcap(3PCAP), pcap_activate(3PCAP)

COLOPHON         top

       This page is part of the libpcap (packet capture library) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, see ⟨⟩.  This page was obtained
       from the project's upstream Git repository 
       ⟨⟩ on 2017-03-13.  If
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                               3 January 2014             PCAP_CREATE(3PCAP)