* src/ifaddrs.c (getifaddrs): Fill in flags, netmask and broadcast addresses, for both IPv4 and IPv6 and enabled. * src/ipv6_routing_thread.c (ipv6_start_routing_thread): Only start the thread once. * src/getaddrinfo.c (getaddrinfo): Correctly return TCP when it is! * tests/addr_test.c (net_test): Added a test which uses protocol TCP * src/tftp_client.c (tftp_get): If we timeout on the first block, try other addresses for the server if we have any. * src/network_support.c (init_all_network_interfaces): After router solicitation has given us an address, wait a couple of seconds for duplicate address detection to do its work. While DAD is active, we cannot use the new address. * src/tftp_client.c (tftp_client_put): Fixed compiler warning. * src/getaddrinfo.c (getnameinfo): Fixed some endian issues with port numbers and a typo. Added an interface to the DNS client for reverse lookups. * tests/addr_test.c (net_test): Added tests for getnameinfo. Fixed some memory leaks. * src/getaddrinfo.c (getaddrinfo): Virtually a re-write to interface to the DNS client. * include/net/netdb.h: const correctness.