netbsd man page for pcap_list_datalinks

PCAP_LIST_DATALINKS(3)					     Library Functions Manual					    PCAP_LIST_DATALINKS(3)

NAME
       pcap_list_datalinks - get a list of link-layer header types supported by a capture device

SYNOPSIS
       #include <pcap/pcap.h>

       int pcap_list_datalinks(pcap_t *p, int **dlt_buf);

DESCRIPTION
       pcap_list_datalinks()  is  used	to  get  a  list  of  the  supported data link types of the interface associated with the pcap descriptor.
       pcap_list_datalinks() allocates an array to hold the list and sets *dlt_buf.   The  caller  is  responsible  for  freeing  the  array  with
       pcap_free_datalinks(3).

RETURN VALUE
       pcap_list_datalinks() returns the number of data link types in the array on success and -1 on failure.  If -1 is returned, pcap_geterr() or
       pcap_perror() may be called with p as an argument to fetch or display the error text.

SEE ALSO
       pcap(3), pcap_geterr(3), pcap_free_datalinks(3), pcap-linktype(7)

								   5 April 2008 					    PCAP_LIST_DATALINKS(3)