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PCAP_CREATE(3)             Library Functions Manual             PCAP_CREATE(3)

NAME
       pcap_create - create a live capture handle

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.  errbuf is a buffer large enough to hold at least
       PCAP_ERRBUF_SIZE chars.

       The returned handle must be activated with pcap_activate(3) 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.

SEE ALSO
       pcap(3)

                               30 November 2023                 PCAP_CREATE(3)