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);
       const char *pcap_datalink_val_to_description(int 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(3PCAP)

                                            4 May 2022           PCAP_DATALINK_VAL_TO_NAME(3PCAP)