#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#define CLIENT_SOCK_FILE "/tmp/cclient.sock"
#define SERVER_SOCK_FILE "/tmp/udsserver.sock"

int main(void) {
    struct sockaddr_un server_addr = {};
    server_addr.sun_family = AF_UNIX;
    strcpy(server_addr.sun_path, SERVER_SOCK_FILE); // XXX: should be limited to about 104 characters, system dependent

    struct sockaddr_un client_addr = {};
    client_addr.sun_family = AF_UNIX;
    strcpy(client_addr.sun_path, CLIENT_SOCK_FILE);

    // get socket
    int sockfd = socket(AF_UNIX, SOCK_DGRAM, 0);

    // bind client to client_filename
    if (bind(sockfd, (struct sockaddr *) &client_addr, sizeof(client_addr)) > 0) {
        if (connect(sockfd, (struct sockaddr *) &server_addr, sizeof(server_addr)) > 0) {
            unsigned char* messageBuffer = malloc(500);
            memset(messageBuffer, 0, 500);
            const char* message = "Hello from C";
            size_t messageLengthInBytes = strlen(message);
            messageBuffer[0] = messageLengthInBytes;
            strcpy((char *)messageBuffer+1, message);
            send(sockfd, messageBuffer, messageLengthInBytes+1, 0);
            free(messageBuffer);
        }
    }

    // connect client to server_filename


    unlink (CLIENT_SOCK_FILE);
    return 0;
}