#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>

#define SOCK "THIS IS A TEST SOCKET"
#define SAS2SA(x) ((struct sockaddr *)(x))

int main() {
    struct sockaddr_un sa; char buf[1024]; socklen_t slen;
    int s1 = socket(AF_UNIX, SOCK_DGRAM, 0);
    int s2 = socket(AF_UNIX, SOCK_DGRAM, 0);

    unlink(SOCK);
    sa.sun_family = AF_UNIX; strcpy(sa.sun_path, SOCK);
    if (bind(s1, SAS2SA(&sa), sizeof(sa))) perror("bind");
    if (8 != sendto( s2, "derpderp", 8, 0, SAS2SA(&sa), sizeof(sa)))
        perror("sendto");

    slen = sizeof(sa);
    if (!recvfrom( s1, buf, 1024, 0, SAS2SA(&sa), &slen))
        perror("recvfrom");
    printf("recvfrom addr length: %d\n", slen);

    slen = sizeof(sa);
    if (getsockname(s2, SAS2SA(&sa), &slen)) perror("getsockname");
    printf("getsockname addr length: %d\n", slen);

    unlink(SOCK);
    return 0;
}