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require File.expand_path('../../../../spec_helper', __FILE__)
require File.expand_path('../../fixtures/classes', __FILE__)
require 'socket'
describe "Socket.getnameinfo" do
before :each do
@reverse_lookup = BasicSocket.do_not_reverse_lookup
BasicSocket.do_not_reverse_lookup = true
end
after :each do
BasicSocket.do_not_reverse_lookup = @reverse_lookup
end
it "gets the name information and don't resolve it" do
sockaddr = Socket.sockaddr_in SocketSpecs.port, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr, Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "#{SocketSpecs.port}"]
end
def should_be_valid_dns_name(name)
# http://stackoverflow.com/questions/106179/regular-expression-to-match-hostname-or-ip-address
# ftp://ftp.rfc-editor.org/in-notes/rfc3696.txt
# http://domainkeys.sourceforge.net/underscore.html
valid_dns = /^(([a-zA-Z0-9_]|[a-zA-Z0-9_][a-zA-Z0-9\-_]*[a-zA-Z0-9_])\.)*([A-Za-z_]|[A-Za-z_][A-Za-z0-9\-_]*[A-Za-z0-9_])\.?$/
name.should =~ valid_dns
end
it "gets the name information and resolve the host" do
sockaddr = Socket.sockaddr_in SocketSpecs.port, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr, Socket::NI_NUMERICSERV)
should_be_valid_dns_name(name_info[0])
name_info[1].should == SocketSpecs.port.to_s
end
it "gets the name information and resolves the service" do
sockaddr = Socket.sockaddr_in 9, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr)
name_info.size.should == 2
should_be_valid_dns_name(name_info[0])
# see http://www.iana.org/assignments/port-numbers
name_info[1].should == 'discard'
end
it "gets a 3-element array and doesn't resolve hostname" do
name_info = Socket.getnameinfo(["AF_INET", SocketSpecs.port, '127.0.0.1'], Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "#{SocketSpecs.port}"]
end
it "gets a 3-element array and resolves the service" do
name_info = Socket.getnameinfo ["AF_INET", 9, '127.0.0.1']
name_info[1].should == 'discard'
end
it "gets a 4-element array and doesn't resolve hostname" do
name_info = Socket.getnameinfo(["AF_INET", SocketSpecs.port, 'foo', '127.0.0.1'], Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "#{SocketSpecs.port}"]
end
it "gets a 4-element array and resolves the service" do
name_info = Socket.getnameinfo ["AF_INET", 9, 'foo', '127.0.0.1']
name_info[1].should == 'discard'
end
end
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