pcap_set_datalink (3)

Leading comments

 Copyright (c) 1994, 1996, 1997
	The Regents of the University of California.  All rights reserved.

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(The comments found at the beginning of the groff file "man3/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 and -1 on failure. If -1 is returned, pcap_geterr() or pcap_perror() may be called with p as an argument to fetch or display the error text.

SEE ALSO

pcap(3PCAP), pcap_geterr(3PCAP), pcap_datalink_name_to_val(3PCAP)