The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2016 The IEEE and The Open Group, All Rights reserved.

### Networking Services

- Sockets Overview
- Sockets Interfaces
  - accept()
  - bind()
  - close()
  - connect()
  - fcntl()
  - freeaddrinfo()
  - getaddrinfo()
  - getnameinfo()
  - getpeername()
  - getsockname()
  - getsockopt()
  - listen()
  - poll()
  - pselect()
  - read()
  - recv()
  - recvfrom()
  - recvmsg()
  - select()
  - send()
  - sendmsg()
  - sendto()
  - setsockopt()
  - shutdown()
  - sockatmark()
  - socket()
  - socketpair()
  - write()
- Sockets Headers
  - fcntl.h
  - netinet/tcp.h
  - sys/socket.h
  - sys/stat.h
  - sys/uio.h
  - sys/un.h
- IP Address Resolution Interfaces
  - endhostent()
  - endnetent()
  - endprotoent()
  - endservent()
  - getnetbyaddr()
  - getprotobynumber()
  - getservbyport()
  - htonl()
  - inet_addr()
  - ntohl()
  - sethostent()
  - setnetent()
  - setprotoent()
  - setservent()
- IP Address Resolution Headers
  - arpa/inet.h
  - netdb.h
  - netinet/in.h
  - unistd.h