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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  dis-
     play the error text.

SEE ALSO
     pcap(3PCAP), pcap_datalink_name_to_val(3PCAP)

				  5 March 2022		PCAP_SET_DATALINK(3PCAP)

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<https://man.freebsd.org/cgi/man.cgi?query=pcap_set_datalink&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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