137 	register struct _fb *fbp = &des_cfb;  in cfb64_init()  local
139 	(void) memset((void *)fbp, 0, sizeof (*fbp));  in cfb64_init()
140 	fbp->state[0] = des_cfb.state[1] = ENCR_STATE_FAILED;  in cfb64_init()
141 	fbp->fb_feed[0] = IAC;  in cfb64_init()
142 	fbp->fb_feed[1] = SB;  in cfb64_init()
143 	fbp->fb_feed[2] = TELOPT_ENCRYPT;  in cfb64_init()
144 	fbp->fb_feed[3] = ENCRYPT_IS;  in cfb64_init()
146 	fbp->fb_feed[4] = TELOPT_ENCTYPE_DES_CFB64;  in cfb64_init()
147 	fbp->streams[TELNET_DIR_DECRYPT].str_flagshift =  in cfb64_init()
149 	fbp->streams[TELNET_DIR_ENCRYPT].str_flagshift =  in cfb64_init()
165 	struct _fb *fbp = &des_cfb;  in cfb64_start()  local
177 		state = fbp->state[dir];  in cfb64_start()
183 		state = fbp->state[dir];  in cfb64_start()
189 		if (!fbp->validkey) {  in cfb64_start()
190 			fbp->need_start = B_TRUE;  in cfb64_start()
204 			d.data = (char *)fbp->temp_feed;  in cfb64_start()
205 			d.length = sizeof (fbp->temp_feed);  in cfb64_start()
212 		p = fbp->fb_feed + 3;  in cfb64_start()
217 			if ((*p++ = fbp->temp_feed[x]) == IAC)  in cfb64_start()
222 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in cfb64_start()
223 		(void) net_write(fbp->fb_feed, p - fbp->fb_feed);  in cfb64_start()
228 	return (fbp->state[dir] = state);  in cfb64_start()
241 	struct _fb *fbp = &des_cfb;  in cfb64_is()  local
242 	register int state = fbp->state[TELNET_DIR_DECRYPT];  in cfb64_is()
267 			&fbp->streams[TELNET_DIR_DECRYPT]);  in cfb64_is()
269 		p = fbp->fb_feed + 3;  in cfb64_is()
275 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in cfb64_is()
276 		(void) net_write(fbp->fb_feed, p - fbp->fb_feed);  in cfb64_is()
278 		state = fbp->state[TELNET_DIR_DECRYPT] = ENCR_STATE_IN_PROGRESS;  in cfb64_is()
295 		p = fbp->fb_feed + 3;  in cfb64_is()
301 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in cfb64_is()
302 		(void) net_write(fbp->fb_feed, p - fbp->fb_feed);  in cfb64_is()
306 	return (fbp->state[TELNET_DIR_DECRYPT] = state);  in cfb64_is()
318 	struct _fb *fbp = &des_cfb;  in cfb64_reply()  local
319 	register int state = fbp->state[TELNET_DIR_ENCRYPT];  in cfb64_reply()
326 		cfb64_stream_iv(fbp->temp_feed,  in cfb64_reply()
327 			&fbp->streams[TELNET_DIR_ENCRYPT]);  in cfb64_reply()
336 		(void) memset(fbp->temp_feed, 0, sizeof (Block));  in cfb64_reply()
337 		cfb64_stream_iv(fbp->temp_feed,  in cfb64_reply()
338 			&fbp->streams[TELNET_DIR_ENCRYPT]);  in cfb64_reply()
354 	return (fbp->state[TELNET_DIR_ENCRYPT] = state);  in cfb64_reply()
360 	struct _fb *fbp = &des_cfb;  in cfb64_session()  local
370 	fbp->validkey = B_TRUE;  in cfb64_session()
372 	cfb64_stream_key(key->data, &fbp->streams[TELNET_DIR_ENCRYPT]);  in cfb64_session()
373 	cfb64_stream_key(key->data, &fbp->streams[TELNET_DIR_DECRYPT]);  in cfb64_session()
380 	if (fbp->need_start) {  in cfb64_session()
381 		fbp->need_start = B_FALSE;  in cfb64_session()
395 	struct _fb *fbp = &des_cfb;  local
396 	register int state = fbp->state[dir];
408 	return (fbp->state[dir] = state);