#include <nameser_compat.h>

`PACKETSZ`

PACKETSZ NS_PACKETSZ

Description

maximum packet size

`MAXDNAME`

MAXDNAME NS_MAXDNAME

Description

maximum domain name

`MAXCDNAME`

MAXCDNAME NS_MAXCDNAME

Description

maximum compressed domain name

`MAXLABEL`

MAXLABEL NS_MAXLABEL

Description

maximum length of domain label

`HFIXEDSZ`

HFIXEDSZ NS_HFIXEDSZ

Description

bytes of fixed data in header

`QFIXEDSZ`

QFIXEDSZ NS_QFIXEDSZ

Description

bytes of fixed data in query

`RRFIXEDSZ`

RRFIXEDSZ NS_RRFIXEDSZ

Description

bytes of fixed data in r record

`INT32SZ`

INT32SZ NS_INT32SZ

Description

bytes of data in a u_int32_t

`INT16SZ`

INT16SZ NS_INT16SZ

Description

bytes of data in a u_int16_t

`INADDRSZ`

INADDRSZ NS_INADDRSZ

Description

IPv4 T_A

`IN6ADDRSZ`

IN6ADDRSZ NS_IN6ADDRSZ

Description

IPv6 T_AAAA

`INDIR_MASK`

INDIR_MASK NS_CMPRSFLGS

Description

Flag bits indicating name compression.

`NAMESERVER_PORT`

NAMESERVER_PORT NS_DEFAULTPORT

Description

For both TCP and UDP.

`QUERY`

QUERY ns_o_query

Description

Standard query.

`IQUERY`

IQUERY ns_o_iquery

Description

Inverse query (deprecated or unsupported).

`STATUS`

STATUS ns_o_status

Description

Name server status query (unsupported).

`NS_NOTIFY_OP`

NS_NOTIFY_OP ns_o_notify

Description

Zone change notification.

`NOERROR`

NOERROR ns_r_noerror

Description

No error occurred.

`FORMERR`

FORMERR ns_r_formerr

Description

Format error.

`SERVFAIL`

SERVFAIL ns_r_servfail

Description

Server failure

`NXDOMAIN`

NXDOMAIN ns_r_nxdomain

Description

Name error.

`NOTIMP`

NOTIMP ns_r_notimpl

Description

Unimplemented

`REFUSED`

REFUSED ns_r_refused

Description

Operation refused.