...e AF_UNIX Local communication unix (7) AF_LOCAL Synonym for AF_UNIX AF_INET IPv4 Internet protocols ip (7) AF_AX25 Amateur radio AX.25 protocol . ax25 (4) AF_IPX IPX - Novell pr…...e handled at lower levels of the system. SEE ALSO ioctl (2), socket (2), getprotoent (3), protocols (5), ip (7), packet (7), socket (7), tcp (7), udp (7), unix (7)...e handled at lower levels of the system. SEE ALSO ioctl (2), socket (2), getprotoent (3), protocols (5), ip (7), packet (7), socket (7), tcp (7), udp (7), unix (7)...ts receipt of out-of-band data that would not be received in the normal data stream. Some protocols place expedited data at the head of the normal data queue, and thus this flag…...ts receipt of out-of-band data that would not be received in the normal data stream. Some protocols place expedited data at the head of the normal data queue, and thus this flag…...ts receipt of out-of-band data that would not be received in the normal data stream. Some protocols place expedited data at the head of the normal data queue, and thus this flag…...passed socket sockfd needs to have the O_NONBLOCK flag set (see socket (7)). For certain protocols which require an explicit confirmation, such as DECnet, accept () can be thoug…...passed socket sockfd needs to have the O_NONBLOCK flag set (see socket (7)). For certain protocols which require an explicit confirmation, such as DECnet, accept () can be thoug…...ap is useful, for example, in tracing or networking, to handle individual system calls or protocols in their own subprograms and use their identifiers as an individual map index…