Return to udgramread.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / share / doc / ps1 / 07.ipctut

Annotation of 43BSDReno/share/doc/ps1/07.ipctut/udgramread.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: char copyright[] =
        !            20: "@(#) Copyright (c) 1986 The Regents of the University of California.\n\
        !            21:  All rights reserved.\n";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #ifndef lint
        !            25: static char sccsid[] = "@(#)udgramread.c       6.4 (Berkeley) 3/7/89";
        !            26: #endif /* not lint */
        !            27: 
        !            28: #include <sys/types.h>
        !            29: #include <sys/socket.h>
        !            30: #include <sys/un.h>
        !            31: 
        !            32: /*
        !            33:  * In the included file <sys/un.h> a sockaddr_un is defined as follows
        !            34:  * struct sockaddr_un {
        !            35:  *     short   sun_family;
        !            36:  *     char    sun_path[108];
        !            37:  * }; 
        !            38:  */
        !            39: 
        !            40: #include <stdio.h>
        !            41: 
        !            42: #define NAME "socket"
        !            43: 
        !            44: /*
        !            45:  * This program creates a UNIX domain datagram socket, binds a name to it,
        !            46:  * then reads from the socket. 
        !            47:  */
        !            48: main()
        !            49: {
        !            50:        int sock, length;
        !            51:        struct sockaddr_un name;
        !            52:        char buf[1024];
        !            53: 
        !            54:        /* Create socket from which to read. */
        !            55:        sock = socket(AF_UNIX, SOCK_DGRAM, 0);
        !            56:        if (sock < 0) {
        !            57:                perror("opening datagram socket");
        !            58:                exit(1);
        !            59:        }
        !            60:        /* Create name. */
        !            61:        name.sun_family = AF_UNIX;
        !            62:        strcpy(name.sun_path, NAME);
        !            63:        if (bind(sock, &name, sizeof(struct sockaddr_un))) {
        !            64:                perror("binding name to datagram socket");
        !            65:                exit(1);
        !            66:        }
        !            67:        printf("socket -->%s\en", NAME);
        !            68:        /* Read from the socket */
        !            69:        if (read(sock, buf, 1024) < 0)
        !            70:                perror("receiving datagram packet");
        !            71:        printf("-->%s\en", buf);
        !            72:        close(sock);
        !            73:        unlink(NAME);
        !            74: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.