network/telnet/telnet.c

139 #define	TS_SB		7		/* sub-option collection */
140 #define	TS_SE		8		/* looking for sub-option end */
206  * These routines are in charge of sending option negotiations
282 willoption(int option)
286 	if (do_dont_resp[option]) {
287 	    --do_dont_resp[option];
288 	    if (do_dont_resp[option] && my_state_is_do(option))
289 		--do_dont_resp[option];
292 	if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) {
294 	    switch (option) {
318 		set_my_want_state_dont(option);
319 		set_my_state_dont(option);
328 		set_my_want_state_do(option);
329 		send_do(option, 0);
332 		do_dont_resp[option]++;
333 		send_dont(option, 0);
336 	set_my_state_do(option);
338 	if (option == TELOPT_ENCRYPT)
344 wontoption(int option)
346 	if (do_dont_resp[option]) {
347 	    --do_dont_resp[option];
348 	    if (do_dont_resp[option] && my_state_is_dont(option))
349 		--do_dont_resp[option];
352 	if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) {
354 	    switch (option) {
369 		set_my_want_state_dont(option);
370 		set_my_state_dont(option);
376 	    set_my_want_state_dont(option);
377 	    if (my_state_is_do(option))
378 		send_dont(option, 0);
380 	} else if (option == TELOPT_TM) {
386 	    set_my_want_state_dont(option);
388 	set_my_state_dont(option);
392 dooption(int option)
396 	if (will_wont_resp[option]) {
397 	    --will_wont_resp[option];
398 	    if (will_wont_resp[option] && my_state_is_will(option))
399 		--will_wont_resp[option];
402 	if (will_wont_resp[option] == 0) {
403 	  if (my_want_state_is_wont(option)) {
405 	    switch (option) {
412 		send_will(option, 0);
421 	    case TELOPT_TTYPE:		/* terminal type option */
424 	    case TELOPT_ENCRYPT:	/* encryption variable option */
429 	    case TELOPT_NEW_ENVIRON:	/* New environment variable option */
434 	    case TELOPT_OLD_ENVIRON:	/* Old environment variable option */
438 		telopt_environ = option;
461 		send_will(option, 0);
472 		set_my_want_state_will(option);
473 		send_will(option, 0);
476 		will_wont_resp[option]++;
477 		send_wont(option, 0);
482 	     * other side has acknowledged the option.
484 	    switch (option) {
490 		set_my_state_will(option);
497 	set_my_state_will(option);
501 dontoption(int option)
504 	if (will_wont_resp[option]) {
505 	    --will_wont_resp[option];
506 	    if (will_wont_resp[option] && my_state_is_wont(option))
507 		--will_wont_resp[option];
510 	if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) {
511 	    switch (option) {
518 		 * The new environ option wasn't recognized, try
527 	    set_my_want_state_wont(option);
528 	    if (my_state_is_will(option))
529 		send_wont(option, 0);
532 	set_my_state_wont(option);
632 	 * Duplicate last name, for TTYPE option, and null
724  *	Look at the sub-option buffer, and try to be helpful to the other
878 		 * variable.  Or it is too long.  So, turn off the option.
1833 		     * IAC SE was left off, or another option got
1847 		    suboption();	/* handle sub-option */
1858 		suboption();	/* handle sub-option */
2272 	printf("Remote side does not support STATUS option\n");