$ connect_test 127.0.0.1 22
proto=[6]
AF_INET=[2]
SOCK_STREAM=[1]

Connect using sockaddr_in method...
paddr=[512, 22, 127.0.0.1]
Connection to 127.0.0.1:22 established

Connect using pack method...
paddr=[2, 22, 127.0.0.1]
connect: Address family not supported by protocol family