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PCAP_LOOKUPDEV(3)          Library Functions Manual          PCAP_LOOKUPDEV(3)



NAME
       pcap_lookupdev - find the default device on which to capture

SYNOPSIS
       #include <&lt;pcap/pcap.h>&gt;

       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(3), pcap_create(3), pcap_activate(3), pcap_open_live(3),
       pcap_lookupnet(3)



                                 5 April 2008                PCAP_LOOKUPDEV(3)