How to recognize the server socket is currently available?

I have 2 simple codes on Linux, cli.c and svr.c

Code:

---

// -------------------cli.c-----------------------------
int main()
{
        int sock = socket(PF_INET, SOCK_STREAM, 0), csock;
        SOCKADDR_IN sin, csin;
        int csinsize = sizeof(csin), read;
        char buf[4096];

        Logi(sock);

        sin.sin_family = PF_INET;
        sin.sin_port = htons(3000);
        sin.sin_addr.s_addr = inet_addr("192.168.10.10");

        while (TRUE)
        {
                // csock = accept(sock, (PSOCKADDR) &csin, &csinsize);
                Logi(connect(sock, (PSOCKADDR) &sin, sizeof(sin)));
                while ((read = recv(sock, buf, 4096, 0)) > 0)
                {
                        Log("read:");
                        Logi(read);
                }
                Log("Connect closed.");
        }

        return 0;
}

//-----------------svr.c--------------------------
int main()
{
        int sock = socket(PF_INET, SOCK_STREAM, 0), csock;
        SOCKADDR_IN sin, csin;
        int csinsize = sizeof(csin), read;
        char buf[4096];

#ifdef DAEMON
        gLogfp = fopen("arpl", "w");
        daemon(0, 0);
#endif

        Logi(sock);

        sin.sin_family = PF_INET;
        sin.sin_port = htons(3000);
        sin.sin_addr.s_addr = htonl(INADDR_ANY);
        bzero(&sin.sin_zero, 8);
        Logi(bind(sock, (PSOCKADDR) &sin, sizeof(sin)));

        Logi(listen(sock, 10));

        while (TRUE)
        {
                Logi(csock = accept(sock, (PSOCKADDR) &csin, &csinsize));
                while ((read = recv(csock, buf, 4096, 0) > 0))
                {
                        Log("read");
                        Logi(read);
                }
                Log("Connect closed.");
        }

        return 0;
}

---

Both client and server is run in daemon, and the socket is really established between each other. However, when I reboot the server(192.168.10.10), client could not feel this, it is still pending at the function recv, the socket is still established seen from netstat. :( Can anyone give me a hint? Thanks.