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_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 MAXLABEL 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 NAMESERVER_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_KEY => 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 installEXPORT_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_TSIG T_IXFR T_AXFR T_MAILB T_MAILA T_ANY
------- for tag :constants -------PACKETSZ NS_PACKETSZ MAXDNAME NS_MAXDNAME MAXCDNAME NS_MAXCDNAME MAXLABEL 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 NAMESERVER_PORT NS_DEFAULTPORT INT8SZ
EXPORT_TAGS
:header
:RRs
:constants
:allAUTHOR
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 Foundation; 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 MERCHANTABILITY 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