1PCAP_LOOKUPDEV(3PCAP)                                    PCAP_LOOKUPDEV(3PCAP)
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NAME

6       pcap_lookupdev - find the default device on which to capture
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SYNOPSIS

9       #include <pcap/pcap.h>
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11       char errbuf[PCAP_ERRBUF_SIZE];
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13       char *pcap_lookupdev(char *errbuf);
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DESCRIPTION

16       pcap_lookupdev()  returns  a  pointer  to a string giving the name of a
17       network device suitable for use with pcap_create() and pcap_activate(),
18       or  with  pcap_open_live(),  and with pcap_lookupnet().  If there is an
19       error, NULL is returned and errbuf is filled  in  with  an  appropriate
20       error  message.   errbuf  is  assumed  to  be  able  to  hold  at least
21       PCAP_ERRBUF_SIZE chars.
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SEE ALSO

24       pcap(3PCAP),         pcap_create(3PCAP),          pcap_activate(3PCAP),
25       pcap_open_live(3PCAP), pcap_lookupnet(3PCAP)
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29                                 5 April 2008            PCAP_LOOKUPDEV(3PCAP)
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