sockets/us_abstract_bind.c

This is sockets/us_abstract_bind.c (Listing 57-8, page 1176), an example from the book, The Linux Programming Interface.

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main()

#include <sys/un.h>
#include <sys/socket.h>
#include "tlpi_hdr.h"

int
main(int argc, char *argv[])
{
    int sockfd;
    struct sockaddr_un addr;
    char *str;

    memset(&addr, 0, sizeof(struct sockaddr_un));  /* Clear address structure */
    addr.sun_family = AF_UNIX;                     /* UNIX domain address */

    /* addr.sun_path[0] has already been set to 0 by memset() */

    str = "xyz";        /* Abstract name is "\0xyz" */
    strncpy(&addr.sun_path[1], str, strlen(str));

    sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
    if (sockfd == -1)
        errExit("socket");

    if (bind(sockfd, (struct sockaddr *) &addr,
            sizeof(sa_family_t) + strlen(str) + 1) == -1)
        errExit("bind");

    sleep(60);

    exit(EXIT_SUCCESS);
}

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