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# File ipaddr.rb, line 51 def getaddress(s) if valid?(s) s elsif /\A[-A-Za-z\d.]+\Z/ =~ s getaddress_orig(s) else raise ArgumentError, "invalid address" end end
# File ipaddr.rb, line 46 def valid?(addr) valid_v4?(addr) || valid_v6?(addr) end
# File ipaddr.rb, line 26 def valid_v4?(addr) if /\A(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\Z/ =~ addr return $~.captures.all? {|i| i.to_i < 256} end return false end
# File ipaddr.rb, line 33 def valid_v6?(addr) # IPv6 (normal) return true if /\A[\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*\Z/ =~ addr return true if /\A[\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*::([\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*)?\Z/ =~ addr return true if /\A::([\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*)?\Z/ =~ addr # IPv6 (IPv4 compat) return true if /\A[\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*:/ =~ addr && valid_v4?($') return true if /\A[\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*::([\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*:)?/ =~ addr && valid_v4?($') return true if /\A::([\dA-Fa-f]{1,4}(:[\dA-Fa-f]{1,4})*:)?/ =~ addr && valid_v4?($') false end