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)