Manual Pages  — PCAP_SET_DATALINK

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

SYNOPSIS DESCRIPTION RETURN VALUE SEE ALSO

#include <pcap/pcap.h>

int pcap_set_datalink(pcap_t *p, int dlt);

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

pcap_set_datalink() returns 0 on success and PCAP_ERROR on failure. If PCAP_ERROR is returned, pcap_geterr(3) or pcap_perror(3) may be called with p as an argument to fetch or display the error text.