static int tcpip_put(COMSTACK h, char *buf, int size);
static int tcpip_get(COMSTACK h, char **buf, int *bufsize);
static int tcpip_put_connect(COMSTACK h, char *buf, int size);
static int tcpip_put(COMSTACK h, char *buf, int size);
static int tcpip_get(COMSTACK h, char **buf, int *bufsize);
static int tcpip_put_connect(COMSTACK h, char *buf, int size);