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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
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