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NetBSD 6.1.5 - man page for pcap_list_datalinks (netbsd section 3)

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PCAP_LIST_DATALINKS(3)							   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 inter-
       face 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)
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