Provides sequenced, reliable, full-duplex, connection-based byte streams.
An out-of-band data transmission mechanism may be supported.
The TCP protocol is based on this socket type.
Supports datagrams (connectionless, unreliable messages of a fixed maximum length).
The UDP protocol is based on this socket type.
Provides a sequenced, reliable, two-way connection-based data transmission path for
datagrams of fixed maximum length; a consumer is required to read an
entire packet with each read call.
Provides raw network protocol access. This special type of socket
can be used to manually construct any type of protocol. A common use
for this socket type is to perform ICMP requests (like ping,
Provides a reliable datagram layer that does not guarantee ordering.
This is most likely not implemented on your operating system.