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)

                                           5 April 2008                     PCAP_LOOKUPDEV(3PCAP)