1 .\" Copyright (c) 1986 Regents of the University of California.
2 .\" All rights reserved.  The Berkeley software License Agreement
3 .\" specifies the terms and conditions for redistribution.
4 .\"
5 .\"	@(#)udgramread.c	6.1 (Berkeley) 05/04/86
6 .\"
7 #include <sys/types.h>
8 #include <sys/socket.h>
9 #include <sys/un.h>
10 
11 /*
12  * In the included file <sys/un.h> a sockaddr_un is defined as follows
13  * struct sockaddr_un {
14  *	short	sun_family;
15  *	char	sun_path[109];
16  * };
17  */
18 
19 #include <stdio.h>
20 
21 #define NAME "socket"
22 
23 /*
24  * This program creates a UNIX domain datagram socket, binds a name to it,
25  * then reads from the socket.
26  */
27 
28 main()
29 {
30 	int             sock, length;
31 	struct sockaddr_un name;
32 	char            buf[1024];
33 
34 	/* Create socket from which to read. */
35 	sock = socket(AF_UNIX, SOCK_DGRAM, 0);
36 	if (sock < 0) {
37 		perror("opening datagram socket");
38 		exit(-1);
39 	}
40 	/* Create name. */
41 	name.sun_family = AF_UNIX;
42 	strcpy(name.sun_path, NAME);
43 	if (bind(sock, &name, sizeof(struct sockaddr_un))) {
44 		close(sock);
45 		perror("binding name to datagram socket");
46 	}
47 	printf("socket -->%s\en", NAME);
48 	/* Read from the socket */
49 	if (read(sock, buf, 1024) < 0)
50 		perror("receiving datagram packet");
51 	printf("-->%s\en", buf);
52 	unlink(NAME);
53 	close(sock);
54 }
55