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GNU Info (libc.info)Local Socket ExampleExample of Local-Namespace Sockets ---------------------------------- Here is an example showing how to create and name a socket in the local namespace. #include <stddef.h> #include <stdio.h> #include <errno.h> #include <stdlib.h> #include <sys/socket.h> #include <sys/un.h> int make_named_socket (const char *filename) { struct sockaddr_un name; int sock; size_t size; /* Create the socket. */ sock = socket (PF_LOCAL, SOCK_DGRAM, 0); if (sock < 0) { perror ("socket"); exit (EXIT_FAILURE); } /* Bind a name to the socket. */ name.sun_family = AF_LOCAL; strncpy (name.sun_path, filename, sizeof (name.sun_path)); /* The size of the address is the offset of the start of the filename, plus its length, plus one for the terminating null byte. Alternatively you can just do: size = SUN_LEN (&name); */ size = (offsetof (struct sockaddr_un, sun_path) + strlen (name.sun_path) + 1); if (bind (sock, (struct sockaddr *) &name, size) < 0) { perror ("bind"); exit (EXIT_FAILURE); } return sock; } automatically generated by info2www version 1.2.2.9 |