Class: Net::DNS::RR::Types
- Inherits:
-
Object
- Object
- Net::DNS::RR::Types
- Defined in:
- lib/net/dns/rr/types.rb
Overview
This is an auxiliary class to hadle RR type field in a DNS packet.
Constant Summary collapse
- Types =
:nodoc:
{ # :nodoc: 'SIGZERO' => 0, # RFC2931 consider this a pseudo type 'A' => 1, # RFC 1035, Section 3.4.1 'NS' => 2, # RFC 1035, Section 3.3.11 'MD' => 3, # RFC 1035, Section 3.3.4 (obsolete) 'MF' => 4, # RFC 1035, Section 3.3.5 (obsolete) 'CNAME' => 5, # RFC 1035, Section 3.3.1 'SOA' => 6, # RFC 1035, Section 3.3.13 'MB' => 7, # RFC 1035, Section 3.3.3 'MG' => 8, # RFC 1035, Section 3.3.6 'MR' => 9, # RFC 1035, Section 3.3.8 'NULL' => 10, # RFC 1035, Section 3.3.10 'WKS' => 11, # RFC 1035, Section 3.4.2 (deprecated) 'PTR' => 12, # RFC 1035, Section 3.3.12 'HINFO' => 13, # RFC 1035, Section 3.3.2 'MINFO' => 14, # RFC 1035, Section 3.3.7 'MX' => 15, # RFC 1035, Section 3.3.9 'TXT' => 16, # RFC 1035, Section 3.3.14 'RP' => 17, # RFC 1183, Section 2.2 'AFSDB' => 18, # RFC 1183, Section 1 'X25' => 19, # RFC 1183, Section 3.1 'ISDN' => 20, # RFC 1183, Section 3.2 'RT' => 21, # RFC 1183, Section 3.3 'NSAP' => 22, # RFC 1706, Section 5 'NSAP_PTR' => 23, # RFC 1348 (obsolete) # The following 2 RRs are impemented in Net::DNS::SEC, TODO 'SIG' => 24, # RFC 2535, Section 4.1 'KEY' => 25, # RFC 2535, Section 3.1 'PX' => 26, # RFC 2163, 'GPOS' => 27, # RFC 1712 (obsolete) 'AAAA' => 28, # RFC 1886, Section 2.1 'LOC' => 29, # RFC 1876 # The following RR is impemented in Net::DNS::SEC, TODO 'NXT' => 30, # RFC 2535, Section 5.2 'EID' => 31, # draft-ietf-nimrod-dns-xx.txt 'NIMLOC' => 32, # draft-ietf-nimrod-dns-xx.txt 'SRV' => 33, # RFC 2052 'ATMA' => 34, # ??? 'NAPTR' => 35, # RFC 2168 'KX' => 36, # RFC 2230 'CERT' => 37, # RFC 2538 'DNAME' => 39, # RFC 2672 'OPT' => 41, # RFC 2671 # The following 4 RRs are impemented in Net::DNS::SEC TODO 'DS' => 43, # draft-ietf-dnsext-delegation-signer 'SSHFP' => 44, # draft-ietf-secsh-dns (No RFC # yet at time of coding) 'RRSIG' => 46, # draft-ietf-dnsext-dnssec-2535typecode-change 'NSEC' => 47, # draft-ietf-dnsext-dnssec-2535typecode-change 'DNSKEY' => 48, # draft-ietf-dnsext-dnssec-2535typecode-change 'UINFO' => 100, # non-standard 'UID' => 101, # non-standard 'GID' => 102, # non-standard 'UNSPEC' => 103, # non-standard 'TKEY' => 249, # RFC 2930 'TSIG' => 250, # RFC 2931 'IXFR' => 251, # RFC 1995 'AXFR' => 252, # RFC 1035 'MAILB' => 253, # RFC 1035 (MB, MG, MR) 'MAILA' => 254, # RFC 1035 (obsolete - see MX) 'ANY' => 255, # RFC 1035 }
- @@default =
The default value when type is nil in Resource Records
Types["A"]
Class Method Summary collapse
-
.default=(str) ⇒ Object
Be able to control the default type to assign when type is
nil
. -
.regexp ⇒ Object
Gives in output the keys from the
Types
hash in a format suited for regexps. -
.to_str(type) ⇒ Object
Returns the type in string format, as “A” or “NS”, given the numeric value.
-
.valid?(type) ⇒ Boolean
Checks whether
type
is a valid RR type.
Instance Method Summary collapse
-
#initialize(type) ⇒ Types
constructor
Creates a new object representing an RR type.
-
#inspect ⇒ Object
Returns the type in number format (default for normal use).
-
#to_i ⇒ Object
Returns the type in numeric format, usable by the pack methods for data transfers.
-
#to_s ⇒ Object
Returns the type in string format, i.d.
-
#to_str ⇒ Object
Should be used only for testing purpouses.
Constructor Details
#initialize(type) ⇒ Types
Creates a new object representing an RR type. Performs some checks on the argument validity too. Il type
is nil
, the default value is ANY
or the one set with Types.default=
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# File 'lib/net/dns/rr/types.rb', line 123 def initialize(type) case type when String # type in the form "A" or "NS" new_from_string(type.upcase) when Fixnum # type in numeric form new_from_num(type) when nil # default type, control with Types.default= @str = Types.invert[@@default] @num = @@default else raise TypeArgumentError, "Wrong type class: #{type.class}" end end |
Class Method Details
.default=(str) ⇒ Object
Be able to control the default type to assign when type is nil
. Default to A
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# File 'lib/net/dns/rr/types.rb', line 79 def self.default=(str) if Types.has_key? str @@default = Types[str] else raise TypeArgumentError, "Unknown type #{str}" end end |
.regexp ⇒ Object
Gives in output the keys from the Types
hash in a format suited for regexps
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# File 'lib/net/dns/rr/types.rb', line 116 def self.regexp Types.keys.sort.join("|") end |
.to_str(type) ⇒ Object
Returns the type in string format, as “A” or “NS”, given the numeric value
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# File 'lib/net/dns/rr/types.rb', line 101 def self.to_str(type) case type when Fixnum if Types.invert.has_key? type return Types.invert[type] else raise TypeArgumentError, "Unknown type number #{type}" end else raise TypeArgumentError, "Wrong type class: #{type.class}" end end |
.valid?(type) ⇒ Boolean
Checks whether type
is a valid RR type.
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# File 'lib/net/dns/rr/types.rb', line 88 def self.valid?(type) case type when String return Types.has_key?(type) when Fixnum return Types.invert.has_key?(type) else raise TypeArgumentError, "Wrong type class: #{type.class}" end end |
Instance Method Details
#inspect ⇒ Object
Returns the type in number format (default for normal use)
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# File 'lib/net/dns/rr/types.rb', line 142 def inspect @num end |
#to_i ⇒ Object
Returns the type in numeric format, usable by the pack methods for data transfers
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# File 'lib/net/dns/rr/types.rb', line 154 def to_i @num.to_i end |
#to_s ⇒ Object
Returns the type in string format, i.d. “A” or “NS” or such a string.
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# File 'lib/net/dns/rr/types.rb', line 148 def to_s @str end |
#to_str ⇒ Object
Should be used only for testing purpouses
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# File 'lib/net/dns/rr/types.rb', line 159 def to_str @num.to_s end |