PCAP_DATALINK_VAL_TO_NAME(3) PCAP_DATALINK_VAL_TO_NAME(3)
NAME
pcap_datalink_val_to_name, pcap_datalink_val_to_description,
pcap_datalink_val_to_description_or_dlt - get a name or description for a
link-layer header type value
SYNOPSIS
#include <pcap.h>
const char *pcap_datalink_val_to_name(int dlt);
pcap_datalink_val_to_description(3) dlt);
const char *pcap_datalink_val_to_description_or_dlt(int dlt);
DESCRIPTION
pcap_datalink_val_to_name() translates a link-layer header type value to
the corresponding link-layer header type name, which is the DLT_ name for
the link-layer header type value with the DLT_ removed. NULL is returned
if the type value does not correspond to a known DLT_ value.
pcap_datalink_val_to_description() translates a link-layer header type
value to a short description of that link-layer header type. NULL is
returned if the type value does not correspond to a known DLT_ value.
pcap_datalink_val_to_description_or_dlt() translates a link-layer header
type value to a short description of that link-layer header type just
like pcap_datalink_val_to_description(). If the type value does not
correspond to a known DLT_ value, the string "DLT n" is returned, where n
is the value of the dlt argument.
BACKWARD COMPATIBILITY
The pcap_datalink_val_to_description_or_dlt() function first became
available in libpcap release 1.9.1. In previous releases,
pcap_datalink_val_to_description() would have to be called and, if it
returned NULL, a default string would have to be constructed.
SEE ALSO
pcap(3)
4 May 2022 PCAP_DATALINK_VAL_TO_NAME(3)
libpcap 1.10.2 - Generated Mon Jan 2 16:00:51 CST 2023