#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <pthread.h>
#include <stdio.h>

static void *thr(void *arg)
{
        int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
        const int y = 1;
        struct sockaddr_in new_conn;
        socklen_t new_conn_len = sizeof(new_conn);

        setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &y, sizeof(y));
        listen(fd, SOMAXCONN);
        accept(fd, (void *)&new_conn, &new_conn_len);
        printf("finished\n");
        return NULL;
}

int main(void)
{
        pthread_t id;
        pthread_create(&id, NULL, thr, NULL);
        sleep(1);
        pthread_cancel(id);
        pthread_join(id, NULL);
        return 0;
}