Net::DNS::Codes man page on OpenServer
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Codes(3) User Contributed Perl Documentation Codes(3)
NAME
Net::DNS::Codes - collection of "C" library DNS codes
SYNOPSIS
use Net::DNS::Codes qw(
:header
:RRs
:constants
:all
(or any individual item)
);
--------- :header -------
$textval = RBitsTxt->{masked_bits};
$textval = RcodeTxt->{numeric};
$textval = OpcodeTxt->{numeric};
$code = (one of text below)
QR AA TC RD RA MBZ Z AD CD
BITS_QUERY BITS_IQUERY BITS_STATUS BITS_NS_NOTIFY_OP BITS_NS_UPDATE_OP
QUERY IQUERY STATUS NS_NOTIFY_OP NS_UPDATE_OP
NOERROR FORMERR SERVFAIL NXDOMAIN NOTIMP REFUSED YXDOMAIN YXRRSET
NXRRSET NOTAUTH NOTZONE BADSIG BADKEY BADTIME
------- :RRs -------
$textval = ClassTxt->{numeric};
$textval = TypeTxt->{numeric};
$code = (one of text below)
C_IN C_CHAOS C_HS C_NONE C_ANY
T_A T_NS T_MD T_MF T_CNAME T_SOA T_MB T_MG T_MR T_NULL T_WKS T_PTR
T_HINFO T_MINFO T_MX T_TXT T_RP T_AFSDB T_X25 T_ISDN T_RT T_NSAP
T_NSAP_PTR T_SIG T_KEY T_PX T_GPOS T_AAAA T_LOC T_NXT T_EID T_NIMLOC
T_SRV T_ATMA T_NAPTR T_KX T_CERT T_A6 T_DNAME T_SINK T_OPT T_TKEY
T_TSIG T_IXFR T_AXFR T_MAILB T_MAILA T_ANY
------- :constants -------
$code = (one of test below)
PACKETSZ NS_PACKETSZ MAXDNAME NS_MAXDNAME MAXCDNAME NS_MAXCDNAME MAXLA-
BEL NS_MAXLABEL HFIXEDSZ NS_HFIXEDSZ QFIXEDSZ NS_QFIXEDSZ RRFIXEDSZ
NS_RRFIXEDSZ INT32SZ NS_INT32SZ INT16SZ NS_INT16SZ NS_INT8SZ INADDRSZ
NS_INADDRSZ IN6ADDRSZ NS_IN6ADDRSZ INDIR_MASK NS_CMPRSFLGS NAME-
SERVER_PORT NS_DEFAULTPORT
$code = INT8SZ (not a DNS code, added for convenience)
DESCRIPTION
Net::DNS::Codes provides forward and reverse lookup for most common "C"
library DNS codes as well as all the codes for the DNS HEADER field.
* $bitmask = XX
Return the bitmask for the code:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
|QR| Opcode |AA|TC|RD|RA| Z|AD|CD| Rcode |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
QR => 1000_0000_0000_0000
BitsOpcode => Opcode binary value
left shifted 11 bits
AA => 100_0000_0000
TC => 10_0000_0000
RD => 1_0000_0000
RA => 1000_0000
MBZ or Z => 100_0000
AD => 10_0000
CD => 1_0000
Rcode => Rcode binary value
where BitsOpcode =
BITS_QUERY => 0,
BITS_IQUERY => 1000_0000_0000 # 1 << 11
BITS_STATUS => 1_0000_0000_0000 # 2 << 11
BITS_NS_NOTIFY_OP => 10_0000_0000_0000 # 4 << 11
BITS_NS_UPDATE_OP => 10_1000_0000_0000 # 5 << 11
* $textval = RBitsTxt->{masked_bits};
Returns the TEXT string for the bit fields above.
NOTE: that MBZ and Z have the same value.
The text string 'MBZ' is returned for 0x1 << 6
* $textval = RcodeTxt->{numeric};
Return the TEXT string for numeric code.
NOERROR => 0,
FORMERR => 1,
SERVFAIL => 2,
NXDOMAIN => 3,
NOTIMP => 4,
REFUSED => 5,
YXDOMAIN => 6,
YXRRSET => 7,
NXRRSET => 8,
NOTAUTH => 9,
NOTZONE => 10,
BADSIG => 16,
BADKEY => 17,
BADTIME => 18,
* $textval = OpcodeTxt->{numeric};
Return the TEXT string for numeric code.
QUERY => 0,
IQUERY => 1,
STATUS => 2,
NS_NOTIFY_OP => 4,
NS_UPDATE_OP => 5,
* $textval = ClassTxt->{numeric};
Return the TEXT string for numeric code.
C_IN => 1,
C_CHAOS => 3,
C_HS => 4,
C_NONE => 254,
C_ANY => 255,
* $textval = TypeTxt->{numeric};
Return the TEXT string for numeric code.
T_A => 1,
T_NS => 2,
T_MD => 3,
T_MF => 4,
T_CNAME => 5,
T_SOA => 6,
T_MB => 7,
T_MG => 8,
T_MR => 9,
T_NULL => 10,
T_WKS => 11,
T_PTR => 12,
T_HINFO => 13,
T_MINFO => 14,
T_MX => 15,
T_TXT => 16,
T_RP => 17,
T_AFSDB => 18,
T_X25 => 19,
T_ISDN => 20,
T_RT => 21,
T_NSAP => 22,
T_NSAP_PTR => 23,
T_SIG => 24,
T_KEY => 25,
T_PX => 26,
T_GPOS => 27,
T_AAAA => 28,
T_LOC => 29,
T_NXT => 30,
T_EID => 31,
T_NIMLOC => 32,
T_SRV => 33,
T_ATMA => 34,
T_NAPTR => 35,
T_KX => 36,
T_CERT => 37,
T_A6 => 38,
T_DNAME => 39,
T_SINK => 40,
T_OPT => 41,
T_DS => 43,
T_TKEY => 249,
T_TSIG => 250,
T_IXFR => 251,
T_AXFR => 252,
T_MAILB => 253,
T_MAILA => 254,
T_ANY => 255,
* (various constants)
PACKETSZ NS_PACKETSZ 512
MAXDNAME NS_MAXDNAME 1025
MAXCDNAME NS_MAXCDNAME 255
MAXLABEL NS_MAXLABEL 63
HFIXEDSZ NS_HFIXEDSZ 12
QFIXEDSZ NS_QFIXEDSZ 4
RRFIXEDSZ NS_RRFIXEDSZ 10
INT32SZ NS_INT32SZ 4
INT16SZ NS_INT16SZ 2
INT8SZ NS_INT8SZ 1
INADDRSZ NS_INADDRSZ 4
IN6ADDRSZ NS_IN6ADDRSZ 16
INDIR_MASK NS_CMPRSFLGS 0xc0
NAMESERVER_PORT NS_DEFAULTPORT 53
INSTALLATION
To install this module, type:
perl Makfile.PL
make
make test
make install
EXPORT_OK
------- for tag :header -------
RBitsTxt RcodeTxt OpcodeTxt
QR AA TC RD RA MBZ Z AD CD
BITS_QUERY BITS_IQUERY BITS_STATUS BITS_NS_NOTIFY_OP BITS_NS_UPDATE_OP
QUERY IQUERY STATUS NS_NOTIFY_OP NS_UPDATE_OP
NOERROR FORMERR SERVFAIL NXDOMAIN NOTIMP REFUSED YXDOMAIN YXRRSET
NXRRSET NOTAUTH NOTZONE BADSIG BADKEY BADTIME
------- for tag :RRs -------
$textval = ClassTxt->{numeric};
$textval = TypeTxt->{numeric};
$code = (one of text below)
C_IN C_CHAOS C_HS C_NONE C_ANY
T_A T_NS T_MD T_MF T_CNAME T_SOA T_MB T_MG T_MR T_NULL T_WKS T_PTR
T_HINFO T_MINFO T_MX T_TXT T_RP T_AFSDB T_X25 T_ISDN T_RT T_NSAP
T_NSAP_PTR T_SIG T_KEY T_PX T_GPOS T_AAAA T_LOC T_NXT T_EID T_NIMLOC
T_SRV T_ATMA T_NAPTR T_KX T_CERT T_A6 T_DNAME T_SINK T_OPT T_DS T_TKEY
T_TSIG T_IXFR T_AXFR T_MAILB T_MAILA T_ANY
------- for tag :constants -------
PACKETSZ NS_PACKETSZ MAXDNAME NS_MAXDNAME MAXCDNAME NS_MAXCDNAME MAXLA-
BEL NS_MAXLABEL HFIXEDSZ NS_HFIXEDSZ QFIXEDSZ NS_QFIXEDSZ RRFIXEDSZ
NS_RRFIXEDSZ INT32SZ NS_INT32SZ INT16SZ NS_INT16SZ NS_INT8SZ INADDRSZ
NS_INADDRSZ IN6ADDRSZ NS_IN6ADDRSZ INDIR_MASK NS_CMPRSFLGS NAME-
SERVER_PORT NS_DEFAULTPORT INT8SZ
EXPORT_TAGS
:header
:RRs
:constants
:all
AUTHOR
Michael Robinton, michael@bizsystems.com
COPYRIGHT
Copyright 2003, Michael Robinton & BizSystems This program is free
software; you can redistribute it and/or modify it under the terms of
the GNU General Public License as published by the Free Software Foun-
dation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MER-
CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
SEE ALSO
perl(1), /usr/include/resolv.h /usr/include/arpa/nameser.h
/usr/include/namser_compat.h
perl v5.8.8 2006-09-25 Codes(3)
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