Unix ___domain socket: Difference between revisions

Revision as of 00:30, 3 February 2025

Revision as of 01:07, 3 February 2025

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|page=1151}}</ref>

# Within the same host by using the [[Constant (computer programming)|constant]] <code>AF_UNIX</code>{{efn|Alternatively, <code>PF_UNIX</code> or <code>AF_LOCAL</code> may be used.<ref name="man-unix-sockets">{{cite web

# Between two hosts via the [[IPv4]] protocol by using the constant <code>PF_INET</code>

# Between two hosts via the [[IPv6]] protocol by using the constant <code>PF_INET6</code>

# Within the same host or between two hosts via the [[Stream Control Transmission Protocol]] by using the constant <code>SOCK_SEQPACKET</code><ref name="man-unix-sockets">{{cite web

| url = http://man7.org/linux/man-pages/man7/unix.7.html

| date = 30 April 2018

| title = Linux Programmer's Manual (unix - sockets for local interprocess communication)

| access-date = 22 February 2019

| df = dmy-all}}</ref> The AF stands for "Address Family", and the PF stands for "Protocol Family".}}

# Between two hosts via the [[IPv4]] protocol by using the constant <code>PF_INETAF_INET</code>

# Between two hosts via the [[IPv6]] protocol by using the constant <code>PF_INET6AF_INET6</code>

# Within the same host or between two hosts via the [[Stream Control Transmission Protocol]] by using the constant <code>SOCK_SEQPACKET</code><ref name="man-unix-sockets"/>{{cite web

The ''Unix ___domain socket'' label is used when the <code>___domain</code> parameter's value is <code>PF_UNIXAF_UNIX</code>. The ''Internet ___domain socket'' label is used when the <code>___domain</code> parameter's value is either <code>PF_INETAF_INET</code> or <code>PF_INET6AF_INET6</code>.<ref>https://beej.us/guide/bgnet/html/#system-calls-or-bust</ref><ref name="lpi-p1197">{{cite book

|title=The Linux Programming Interface

|last=Kerrisk

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int return_value;

server_socket_fd = socket( PF_UNIXAF_UNIX, SOCK_STREAM, 0 );

if ( server_socket_fd == -1 ) assert( 0 );

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int return_value;

client_socket_fd = socket( PF_UNIXAF_UNIX, SOCK_STREAM, 0 );

if ( client_socket_fd == -1 ) assert( 0 );