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PCAP_LIST_DATALINKS(3PCAP)			    PCAP_LIST_DATALINKS(3PCAP)

NAME
       pcap_list_datalinks,  pcap_free_datalinks  -  get  a list of link-layer
       header types supported by a capture device, and free that list

SYNOPSIS
       #include <pcap/pcap.h>

       int pcap_list_datalinks(pcap_t *p, int **dlt_buf);
       void pcap_free_datalinks(int *dlt_list);

DESCRIPTION
       pcap_list_datalinks() is used to get a list of the supported link-layer
       header  types  of  the  interface  associated with the pcap descriptor.
       pcap_list_datalinks() allocates an array to  hold  the  list  and  sets
       *dlt_buf to point to that array.

       The    caller	is    responsible   for	  freeing   the	  array	  with
       pcap_free_datalinks(), which frees the list of link-layer header	 types
       pointed to by dlt_list.

RETURN VALUE
       pcap_list_datalinks()  returns the number of link-layer header 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(3PCAP),   pcap_geterr(3PCAP),    pcap_datalink_val_to_name(3PCAP),
       pcap-linktype(7)

				22 August 2010	    PCAP_LIST_DATALINKS(3PCAP)

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