| Listen on unused port TCP/IP |  |  |
| TCP echo server | | |
| TCP client | | |
| TCP connect with a timeout | | |
| Set a read timeout on a TCP stream | | |
| Disable Nagle’s algorithm | | |
| Half-close a TCP connection | | |
| Non-blocking TCP accept | | |
| Send and receive a UDP datagram | | |
| Join a UDP multicast group | | |
| Resolve a hostname to socket addresses | | |
| Classify an IP address | | |
| Bind for both IPv4 and IPv6 | | |