PCAP_SET_DATALINK(3PCAP) PCAP_SET_DATALINK(3PCAP)

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)