Class Resolv::Hosts
In: lib/resolv.rb
Parent: Object

DNS::Hosts is a hostname resolver that uses the system hosts file.

Methods

each_address   each_name   getaddress   getaddresses   getname   getnames   new  

Constants

DefaultFileName = Win32::Resolv.get_hosts_path
DefaultFileName = '/etc/hosts'

Public Class methods

new(filename = DefaultFileName)

Creates a new DNS::Hosts, using filename for its data source.

[Source]

     # File lib/resolv.rb, line 178
178:     def initialize(filename = DefaultFileName)
179:       @filename = filename
180:       @mutex = Mutex.new
181:       @initialized = nil
182:     end

Public Instance methods

each_address(name, &proc)

Iterates over all IP addresses for name retrieved from the hosts file.

[Source]

     # File lib/resolv.rb, line 235
235:     def each_address(name, &proc)
236:       lazy_initialize
237:       if @name2addr.include?(name)
238:         @name2addr[name].each(&proc)
239:       end
240:     end
each_name(address, &proc)

Iterates over all hostnames for address retrieved from the hosts file.

[Source]

     # File lib/resolv.rb, line 262
262:     def each_name(address, &proc)
263:       lazy_initialize
264:       if @addr2name.include?(address)
265:         @addr2name[address].each(&proc)
266:       end
267:     end
getaddress(name)

Gets the IP address of name from the hosts file.

[Source]

     # File lib/resolv.rb, line 218
218:     def getaddress(name)
219:       each_address(name) {|address| return address}
220:       raise ResolvError.new("#{@filename} has no name: #{name}")
221:     end
getaddresses(name)

Gets all IP addresses for name from the hosts file.

[Source]

     # File lib/resolv.rb, line 226
226:     def getaddresses(name)
227:       ret = []
228:       each_address(name) {|address| ret << address}
229:       return ret
230:     end
getname(address)

Gets the hostname of address from the hosts file.

[Source]

     # File lib/resolv.rb, line 245
245:     def getname(address)
246:       each_name(address) {|name| return name}
247:       raise ResolvError.new("#{@filename} has no address: #{address}")
248:     end
getnames(address)

Gets all hostnames for address from the hosts file.

[Source]

     # File lib/resolv.rb, line 253
253:     def getnames(address)
254:       ret = []
255:       each_name(address) {|name| ret << name}
256:       return ret
257:     end

[Validate]