como ejecutar pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1 y enviar la contraseña

int main(void)
{

    char send_data[1024],recv_data[1024];
    int sock, bytes_recieved;
    struct sockaddr_in server_addr;
    struct hostent *host;

        host = gethostbyname("192.168.1.48");

        if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
            perror("Socket");
            exit(1);
        }

        server_addr.sin_family = AF_INET;
        server_addr.sin_port = htons(9898);
        server_addr.sin_addr = *((struct in_addr *)host->h_addr);
        bzero(&(server_addr.sin_zero),8);

        if (connect(sock, (struct sockaddr *)&server_addr,
                    sizeof(struct sockaddr)) == -1)
        {
            perror("Connect");
            exit(1);
        }

        send_data= "pcp_recovery_node