PCAP_LOOKUPDEV
Section: Misc. Reference Manual Pages (3PCAP)
Updated: 5 April 2008
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NAME
pcap_lookupdev - find the default device on which to capture
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
char *pcap_lookupdev(char *errbuf);
DESCRIPTION
pcap_lookupdev()
returns a pointer to a string giving the name of a network device
suitable for use with
pcap_create()
and
pcap_activate(),
or with
pcap_open_live(),
and with
pcap_lookupnet().
If there is an error,
NULL
is returned and
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(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP),
pcap_open_live(3PCAP), pcap_lookupnet(3PCAP)