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require_relative '../spec_helper'
require_relative '../fixtures/classes'
describe "BasicSocket#getsockopt" do
before :each do
@sock = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
end
after :each do
@sock.closed?.should be_false
@sock.close
end
platform_is_not :aix do
# A known bug in AIX. getsockopt(2) does not properly set
# the fifth argument for SO_TYPE, SO_OOBINLINE, SO_BROADCAST, etc.
it "gets a socket option Socket::SO_TYPE" do
n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_TYPE).to_s
n.should == [Socket::SOCK_STREAM].pack("i")
end
it "gets a socket option Socket::SO_OOBINLINE" do
n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_OOBINLINE).to_s
n.should == [0].pack("i")
end
end
it "gets a socket option Socket::SO_LINGER" do
n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER).to_s
if (n.size == 8) # linger struct on some platforms, not just a value
n.should == [0, 0].pack("ii")
else
n.should == [0].pack("i")
end
end
it "gets a socket option Socket::SO_SNDBUF" do
n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_SNDBUF).to_s
n.unpack('i')[0].should > 0
end
it "raises a SystemCallError with an invalid socket option" do
lambda { @sock.getsockopt Socket::SOL_SOCKET, -1 }.should raise_error(Errno::ENOPROTOOPT)
end
it 'returns a Socket::Option using a constant' do
opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_TYPE)
opt.should be_an_instance_of(Socket::Option)
end
it 'returns a Socket::Option for a boolean option' do
opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR)
opt.bool.should == false
end
it 'returns a Socket::Option for a numeric option' do
opt = @sock.getsockopt(Socket::IPPROTO_IP, Socket::IP_TTL)
opt.int.should be_kind_of(Integer)
end
it 'returns a Socket::Option for a struct option' do
opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER)
opt.linger.should == [false, 0]
end
it 'raises Errno::ENOPROTOOPT when requesting an invalid option' do
lambda { @sock.getsockopt(Socket::SOL_SOCKET, -1) }.should raise_error(Errno::ENOPROTOOPT)
end
describe 'using Symbols as arguments' do
it 'returns a Socket::Option for arguments :SOCKET and :TYPE' do
opt = @sock.getsockopt(:SOCKET, :TYPE)
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_TYPE
end
it 'returns a Socket::Option for arguments :IP and :TTL' do
opt = @sock.getsockopt(:IP, :TTL)
opt.level.should == Socket::IPPROTO_IP
opt.optname.should == Socket::IP_TTL
end
it 'returns a Socket::Option for arguments :SOCKET and :REUSEADDR' do
opt = @sock.getsockopt(:SOCKET, :REUSEADDR)
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_REUSEADDR
end
it 'returns a Socket::Option for arguments :SOCKET and :LINGER' do
opt = @sock.getsockopt(:SOCKET, :LINGER)
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_LINGER
end
with_feature :udp_cork do
it 'returns a Socket::Option for arguments :UDP and :CORK' do
sock = Socket.new(:INET, :DGRAM)
begin
opt = sock.getsockopt(:UDP, :CORK)
opt.level.should == Socket::IPPROTO_UDP
opt.optname.should == Socket::UDP_CORK
ensure
sock.close
end
end
end
end
describe 'using Strings as arguments' do
it 'returns a Socket::Option for arguments "SOCKET" and "TYPE"' do
opt = @sock.getsockopt("SOCKET", "TYPE")
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_TYPE
end
it 'returns a Socket::Option for arguments "IP" and "TTL"' do
opt = @sock.getsockopt("IP", "TTL")
opt.level.should == Socket::IPPROTO_IP
opt.optname.should == Socket::IP_TTL
end
it 'returns a Socket::Option for arguments "SOCKET" and "REUSEADDR"' do
opt = @sock.getsockopt("SOCKET", "REUSEADDR")
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_REUSEADDR
end
it 'returns a Socket::Option for arguments "SOCKET" and "LINGER"' do
opt = @sock.getsockopt("SOCKET", "LINGER")
opt.level.should == Socket::SOL_SOCKET
opt.optname.should == Socket::SO_LINGER
end
with_feature :udp_cork do
it 'returns a Socket::Option for arguments "UDP" and "CORK"' do
sock = Socket.new("INET", "DGRAM")
begin
opt = sock.getsockopt("UDP", "CORK")
opt.level.should == Socket::IPPROTO_UDP
opt.optname.should == Socket::UDP_CORK
ensure
sock.close
end
end
end
end
describe 'using a String based option' do
it 'allows unpacking of a boolean option' do
opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR).to_s
opt.unpack('i').should == [0]
end
it 'allows unpacking of a numeric option' do
opt = @sock.getsockopt(Socket::IPPROTO_IP, Socket::IP_TTL).to_s
array = opt.unpack('i')
array[0].should be_kind_of(Integer)
array[0].should > 0
end
it 'allows unpacking of a struct option' do
opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER).to_s
if opt.bytesize == 8
opt.unpack('ii').should == [0, 0]
else
opt.unpack('i').should == [0]
end
end
end
end
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