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)