if (c->closes != 0) return;
static void ssh2_set_window(struct ssh_channel *c, unsigned newwin){    if (newwin > c->v.v2.locwindow) {	ssh2_pkt_init(SSH2_MSG_CHANNEL_WINDOW_ADJUST);	ssh2_pkt_adduint32(c->remoteid);	ssh2_pkt_adduint32(newwin - c->v.v2.locwindow);	ssh2_pkt_send();	c->v.v2.locwindow = newwin;    }}