NAME

       pcap_set_datalink - set the link-layer header type to be used by a capture device

SYNOPSIS

       #include <pcap/pcap.h>

       int pcap_set_datalink(pcap_t *p, int dlt);

DESCRIPTION

       pcap_set_datalink()  is used to set the current link-layer header type of the pcap descriptor to the type
       specified by dlt.

RETURN VALUE

       pcap_set_datalink() returns 0 on success, PCAP_ERROR_NOT_ACTIVATED if called on a capture handle that has
       been  created  but  not  activated,  or  PCAP_ERROR  on  other  errors.  If   PCAP_ERROR   is   returned,
       pcap_geterr(3PCAP)  or  pcap_perror(3PCAP)  may  be  called with p as an argument to fetch or display the
       error text.

SEE ALSO

       pcap(3PCAP), pcap_datalink_name_to_val(3PCAP)

                                                  5 March 2022                          PCAP_SET_DATALINK(3PCAP)