186530481Sborman /*
2f060403bSbostic * Copyright (c) 1989, 1993
3f060403bSbostic * The Regents of the University of California. All rights reserved.
486530481Sborman *
5540a81dfSbostic * %sccs.include.redist.c%
686530481Sborman */
786530481Sborman
886530481Sborman #ifndef lint
9*de436421Sdab static char sccsid[] = "@(#)termstat.c 8.2 (Berkeley) 05/30/95";
1086530481Sborman #endif /* not lint */
1186530481Sborman
1286530481Sborman #include "telnetd.h"
1386530481Sborman
1486530481Sborman /*
1586530481Sborman * local variables
1686530481Sborman */
17f9a01b3eSdab int def_tspeed = -1, def_rspeed = -1;
18f9a01b3eSdab #ifdef TIOCSWINSZ
19f9a01b3eSdab int def_row = 0, def_col = 0;
20f9a01b3eSdab #endif
2186530481Sborman #ifdef LINEMODE
2286530481Sborman static int _terminit = 0;
23f9a01b3eSdab #endif /* LINEMODE */
2486530481Sborman
2517cc352bSborman #if defined(CRAY2) && defined(UNICOS5)
2686530481Sborman int newmap = 1; /* nonzero if \n maps to ^M^J */
2786530481Sborman #endif
2886530481Sborman
2986530481Sborman #ifdef LINEMODE
3086530481Sborman /*
3186530481Sborman * localstat
3286530481Sborman *
3386530481Sborman * This function handles all management of linemode.
3486530481Sborman *
3586530481Sborman * Linemode allows the client to do the local editing of data
3686530481Sborman * and send only complete lines to the server. Linemode state is
3786530481Sborman * based on the state of the pty driver. If the pty is set for
3886530481Sborman * external processing, then we can use linemode. Further, if we
3986530481Sborman * can use real linemode, then we can look at the edit control bits
4086530481Sborman * in the pty to determine what editing the client should do.
4186530481Sborman *
4286530481Sborman * Linemode support uses the following state flags to keep track of
4386530481Sborman * current and desired linemode state.
4486530481Sborman * alwayslinemode : true if -l was specified on the telnetd
4586530481Sborman * command line. It means to have linemode on as much as
4686530481Sborman * possible.
4786530481Sborman *
4886530481Sborman * lmodetype: signifies whether the client can
4986530481Sborman * handle real linemode, or if use of kludgeomatic linemode
5086530481Sborman * is preferred. It will be set to one of the following:
5186530481Sborman * REAL_LINEMODE : use linemode option
52a2574097Sdab * NO_KLUDGE : don't initiate kludge linemode.
5386530481Sborman * KLUDGE_LINEMODE : use kludge linemode
5486530481Sborman * NO_LINEMODE : client is ignorant of linemode
5586530481Sborman *
5686530481Sborman * linemode, uselinemode : linemode is true if linemode
5786530481Sborman * is currently on, uselinemode is the state that we wish
5886530481Sborman * to be in. If another function wishes to turn linemode
5986530481Sborman * on or off, it sets or clears uselinemode.
6086530481Sborman *
6186530481Sborman * editmode, useeditmode : like linemode/uselinemode, but
6286530481Sborman * these contain the edit mode states (edit and trapsig).
6386530481Sborman *
6486530481Sborman * The state variables correspond to some of the state information
6586530481Sborman * in the pty.
6686530481Sborman * linemode:
6786530481Sborman * In real linemode, this corresponds to whether the pty
6886530481Sborman * expects external processing of incoming data.
6986530481Sborman * In kludge linemode, this more closely corresponds to the
7086530481Sborman * whether normal processing is on or not. (ICANON in
7186530481Sborman * system V, or COOKED mode in BSD.)
7286530481Sborman * If the -l option was specified (alwayslinemode), then
7386530481Sborman * an attempt is made to force external processing on at
7486530481Sborman * all times.
7586530481Sborman *
7686530481Sborman * The following heuristics are applied to determine linemode
7786530481Sborman * handling within the server.
7886530481Sborman * 1) Early on in starting up the server, an attempt is made
7986530481Sborman * to negotiate the linemode option. If this succeeds
8086530481Sborman * then lmodetype is set to REAL_LINEMODE and all linemode
8186530481Sborman * processing occurs in the context of the linemode option.
8286530481Sborman * 2) If the attempt to negotiate the linemode option failed,
83a2574097Sdab * and the "-k" (don't initiate kludge linemode) isn't set,
8486530481Sborman * then we try to use kludge linemode. We test for this
8586530481Sborman * capability by sending "do Timing Mark". If a positive
8686530481Sborman * response comes back, then we assume that the client
8786530481Sborman * understands kludge linemode (ech!) and the
8886530481Sborman * lmodetype flag is set to KLUDGE_LINEMODE.
8986530481Sborman * 3) Otherwise, linemode is not supported at all and
9086530481Sborman * lmodetype remains set to NO_LINEMODE (which happens
9186530481Sborman * to be 0 for convenience).
9286530481Sborman * 4) At any time a command arrives that implies a higher
9386530481Sborman * state of linemode support in the client, we move to that
9486530481Sborman * linemode support.
9586530481Sborman *
9686530481Sborman * A short explanation of kludge linemode is in order here.
9786530481Sborman * 1) The heuristic to determine support for kludge linemode
9886530481Sborman * is to send a do timing mark. We assume that a client
9986530481Sborman * that supports timing marks also supports kludge linemode.
10086530481Sborman * A risky proposition at best.
10186530481Sborman * 2) Further negotiation of linemode is done by changing the
10286530481Sborman * the server's state regarding SGA. If server will SGA,
10386530481Sborman * then linemode is off, if server won't SGA, then linemode
10486530481Sborman * is on.
10586530481Sborman */
106f9a01b3eSdab void
localstat()10786530481Sborman localstat()
10886530481Sborman {
10986530481Sborman void netflush();
110f9a01b3eSdab int need_will_echo = 0;
11186530481Sborman
112658176a6Sborman #if defined(CRAY2) && defined(UNICOS5)
11386530481Sborman /*
11486530481Sborman * Keep track of that ol' CR/NL mapping while we're in the
11586530481Sborman * neighborhood.
11686530481Sborman */
11786530481Sborman newmap = tty_isnewmap();
118f9a01b3eSdab #endif /* defined(CRAY2) && defined(UNICOS5) */
11986530481Sborman
12086530481Sborman /*
12186530481Sborman * Check for state of BINARY options.
12286530481Sborman */
12386530481Sborman if (tty_isbinaryin()) {
124658176a6Sborman if (his_want_state_is_wont(TELOPT_BINARY))
125a09b88c8Sborman send_do(TELOPT_BINARY, 1);
12686530481Sborman } else {
127658176a6Sborman if (his_want_state_is_will(TELOPT_BINARY))
128a09b88c8Sborman send_dont(TELOPT_BINARY, 1);
12986530481Sborman }
13086530481Sborman
13186530481Sborman if (tty_isbinaryout()) {
132658176a6Sborman if (my_want_state_is_wont(TELOPT_BINARY))
133a09b88c8Sborman send_will(TELOPT_BINARY, 1);
13486530481Sborman } else {
135658176a6Sborman if (my_want_state_is_will(TELOPT_BINARY))
136a09b88c8Sborman send_wont(TELOPT_BINARY, 1);
13786530481Sborman }
13886530481Sborman
13986530481Sborman /*
14086530481Sborman * Check for changes to flow control if client supports it.
14186530481Sborman */
142c6f32291Sdab flowstat();
14386530481Sborman
14486530481Sborman /*
14586530481Sborman * Check linemode on/off state
14686530481Sborman */
14786530481Sborman uselinemode = tty_linemode();
14886530481Sborman
14986530481Sborman /*
15086530481Sborman * If alwayslinemode is on, and pty is changing to turn it off, then
15186530481Sborman * force linemode back on.
15286530481Sborman */
15386530481Sborman if (alwayslinemode && linemode && !uselinemode) {
15486530481Sborman uselinemode = 1;
15586530481Sborman tty_setlinemode(uselinemode);
15686530481Sborman }
15786530481Sborman
158770074b9Sdab #ifdef ENCRYPTION
159a94793f7Sdab /*
160a94793f7Sdab * If the terminal is not echoing, but editing is enabled,
161a94793f7Sdab * something like password input is going to happen, so
162a94793f7Sdab * if we the other side is not currently sending encrypted
163a94793f7Sdab * data, ask the other side to start encrypting.
164a94793f7Sdab */
165a94793f7Sdab if (his_state_is_will(TELOPT_ENCRYPT)) {
166a94793f7Sdab static int enc_passwd = 0;
167a94793f7Sdab if (uselinemode && !tty_isecho() && tty_isediting()
168a94793f7Sdab && (enc_passwd == 0) && !decrypt_input) {
169a94793f7Sdab encrypt_send_request_start();
170a94793f7Sdab enc_passwd = 1;
171a94793f7Sdab } else if (enc_passwd) {
172a94793f7Sdab encrypt_send_request_end();
173a94793f7Sdab enc_passwd = 0;
174a94793f7Sdab }
175a94793f7Sdab }
176770074b9Sdab #endif /* ENCRYPTION */
177a94793f7Sdab
17886530481Sborman /*
17986530481Sborman * Do echo mode handling as soon as we know what the
18086530481Sborman * linemode is going to be.
18186530481Sborman * If the pty has echo turned off, then tell the client that
18286530481Sborman * the server will echo. If echo is on, then the server
18386530481Sborman * will echo if in character mode, but in linemode the
18486530481Sborman * client should do local echoing. The state machine will
18586530481Sborman * not send anything if it is unnecessary, so don't worry
18686530481Sborman * about that here.
187f9a01b3eSdab *
188f9a01b3eSdab * If we need to send the WILL ECHO (because echo is off),
189f9a01b3eSdab * then delay that until after we have changed the MODE.
190f9a01b3eSdab * This way, when the user is turning off both editing
191f9a01b3eSdab * and echo, the client will get editing turned off first.
192f9a01b3eSdab * This keeps the client from going into encryption mode
193f9a01b3eSdab * and then right back out if it is doing auto-encryption
194f9a01b3eSdab * when passwords are being typed.
19586530481Sborman */
1968e4bde26Sborman if (uselinemode) {
1978e4bde26Sborman if (tty_isecho())
198a09b88c8Sborman send_wont(TELOPT_ECHO, 1);
19986530481Sborman else
200f9a01b3eSdab need_will_echo = 1;
201a2574097Sdab #ifdef KLUDGELINEMODE
202a2574097Sdab if (lmodetype == KLUDGE_OK)
203a2574097Sdab lmodetype = KLUDGE_LINEMODE;
204a2574097Sdab #endif
2058e4bde26Sborman }
20686530481Sborman
20786530481Sborman /*
20886530481Sborman * If linemode is being turned off, send appropriate
20986530481Sborman * command and then we're all done.
21086530481Sborman */
21186530481Sborman if (!uselinemode && linemode) {
21286530481Sborman # ifdef KLUDGELINEMODE
213f9a01b3eSdab if (lmodetype == REAL_LINEMODE) {
21486530481Sborman # endif /* KLUDGELINEMODE */
215a09b88c8Sborman send_dont(TELOPT_LINEMODE, 1);
21686530481Sborman # ifdef KLUDGELINEMODE
217f9a01b3eSdab } else if (lmodetype == KLUDGE_LINEMODE)
218e2235ae6Sborman send_will(TELOPT_SGA, 1);
21986530481Sborman # endif /* KLUDGELINEMODE */
220f9a01b3eSdab send_will(TELOPT_ECHO, 1);
22186530481Sborman linemode = uselinemode;
22286530481Sborman goto done;
22386530481Sborman }
22486530481Sborman
22586530481Sborman # ifdef KLUDGELINEMODE
22686530481Sborman /*
22786530481Sborman * If using real linemode check edit modes for possible later use.
228658176a6Sborman * If we are in kludge linemode, do the SGA negotiation.
22986530481Sborman */
23086530481Sborman if (lmodetype == REAL_LINEMODE) {
23186530481Sborman # endif /* KLUDGELINEMODE */
23286530481Sborman useeditmode = 0;
23386530481Sborman if (tty_isediting())
23486530481Sborman useeditmode |= MODE_EDIT;
23586530481Sborman if (tty_istrapsig())
23686530481Sborman useeditmode |= MODE_TRAPSIG;
237658176a6Sborman if (tty_issofttab())
238658176a6Sborman useeditmode |= MODE_SOFT_TAB;
239658176a6Sborman if (tty_islitecho())
240658176a6Sborman useeditmode |= MODE_LIT_ECHO;
24186530481Sborman # ifdef KLUDGELINEMODE
242658176a6Sborman } else if (lmodetype == KLUDGE_LINEMODE) {
243658176a6Sborman if (tty_isediting() && uselinemode)
244658176a6Sborman send_wont(TELOPT_SGA, 1);
245658176a6Sborman else
246658176a6Sborman send_will(TELOPT_SGA, 1);
24786530481Sborman }
24886530481Sborman # endif /* KLUDGELINEMODE */
24986530481Sborman
25086530481Sborman /*
25186530481Sborman * Negotiate linemode on if pty state has changed to turn it on.
25286530481Sborman * Send appropriate command and send along edit mode, then all done.
25386530481Sborman */
25486530481Sborman if (uselinemode && !linemode) {
25586530481Sborman # ifdef KLUDGELINEMODE
25686530481Sborman if (lmodetype == KLUDGE_LINEMODE) {
257a09b88c8Sborman send_wont(TELOPT_SGA, 1);
25886530481Sborman } else if (lmodetype == REAL_LINEMODE) {
25986530481Sborman # endif /* KLUDGELINEMODE */
260a09b88c8Sborman send_do(TELOPT_LINEMODE, 1);
26186530481Sborman /* send along edit modes */
26286530481Sborman (void) sprintf(nfrontp, "%c%c%c%c%c%c%c", IAC, SB,
26386530481Sborman TELOPT_LINEMODE, LM_MODE, useeditmode,
26486530481Sborman IAC, SE);
26586530481Sborman nfrontp += 7;
26686530481Sborman editmode = useeditmode;
26786530481Sborman # ifdef KLUDGELINEMODE
26886530481Sborman }
26986530481Sborman # endif /* KLUDGELINEMODE */
27086530481Sborman linemode = uselinemode;
27186530481Sborman goto done;
27286530481Sborman }
27386530481Sborman
27486530481Sborman # ifdef KLUDGELINEMODE
27586530481Sborman /*
27686530481Sborman * None of what follows is of any value if not using
27786530481Sborman * real linemode.
27886530481Sborman */
27986530481Sborman if (lmodetype < REAL_LINEMODE)
28086530481Sborman goto done;
28186530481Sborman # endif /* KLUDGELINEMODE */
28286530481Sborman
2838e4bde26Sborman if (linemode && his_state_is_will(TELOPT_LINEMODE)) {
28486530481Sborman /*
28586530481Sborman * If edit mode changed, send edit mode.
28686530481Sborman */
28786530481Sborman if (useeditmode != editmode) {
28886530481Sborman /*
28986530481Sborman * Send along appropriate edit mode mask.
29086530481Sborman */
29186530481Sborman (void) sprintf(nfrontp, "%c%c%c%c%c%c%c", IAC, SB,
29286530481Sborman TELOPT_LINEMODE, LM_MODE, useeditmode,
29386530481Sborman IAC, SE);
29486530481Sborman nfrontp += 7;
29586530481Sborman editmode = useeditmode;
29686530481Sborman }
29786530481Sborman
29886530481Sborman
29986530481Sborman /*
30086530481Sborman * Check for changes to special characters in use.
30186530481Sborman */
30286530481Sborman start_slc(0);
30386530481Sborman check_slc();
304f9a01b3eSdab (void) end_slc(0);
30586530481Sborman }
30686530481Sborman
30786530481Sborman done:
308f9a01b3eSdab if (need_will_echo)
309f9a01b3eSdab send_will(TELOPT_ECHO, 1);
31086530481Sborman /*
31186530481Sborman * Some things should be deferred until after the pty state has
31286530481Sborman * been set by the local process. Do those things that have been
31386530481Sborman * deferred now. This only happens once.
31486530481Sborman */
31586530481Sborman if (_terminit == 0) {
31686530481Sborman _terminit = 1;
31786530481Sborman defer_terminit();
31886530481Sborman }
31986530481Sborman
32086530481Sborman netflush();
32186530481Sborman set_termbuf();
32286530481Sborman return;
32386530481Sborman
32486530481Sborman } /* end of localstat */
32586530481Sborman #endif /* LINEMODE */
32686530481Sborman
327c6f32291Sdab /*
328c6f32291Sdab * flowstat
329c6f32291Sdab *
330c6f32291Sdab * Check for changes to flow control
331c6f32291Sdab */
332c6f32291Sdab void
flowstat()333c6f32291Sdab flowstat()
334c6f32291Sdab {
335c6f32291Sdab if (his_state_is_will(TELOPT_LFLOW)) {
336c6f32291Sdab if (tty_flowmode() != flowmode) {
337c6f32291Sdab flowmode = tty_flowmode();
338c6f32291Sdab (void) sprintf(nfrontp, "%c%c%c%c%c%c",
339c6f32291Sdab IAC, SB, TELOPT_LFLOW,
340c6f32291Sdab flowmode ? LFLOW_ON : LFLOW_OFF,
341c6f32291Sdab IAC, SE);
342c6f32291Sdab nfrontp += 6;
343c6f32291Sdab }
344c6f32291Sdab if (tty_restartany() != restartany) {
345c6f32291Sdab restartany = tty_restartany();
346c6f32291Sdab (void) sprintf(nfrontp, "%c%c%c%c%c%c",
347c6f32291Sdab IAC, SB, TELOPT_LFLOW,
348c6f32291Sdab restartany ? LFLOW_RESTART_ANY
349c6f32291Sdab : LFLOW_RESTART_XON,
350c6f32291Sdab IAC, SE);
351c6f32291Sdab nfrontp += 6;
352c6f32291Sdab }
353c6f32291Sdab }
354c6f32291Sdab }
35586530481Sborman
35686530481Sborman /*
35786530481Sborman * clientstat
35886530481Sborman *
35986530481Sborman * Process linemode related requests from the client.
36086530481Sborman * Client can request a change to only one of linemode, editmode or slc's
36186530481Sborman * at a time, and if using kludge linemode, then only linemode may be
36286530481Sborman * affected.
36386530481Sborman */
364f9a01b3eSdab void
clientstat(code,parm1,parm2)36586530481Sborman clientstat(code, parm1, parm2)
36686530481Sborman register int code, parm1, parm2;
36786530481Sborman {
36886530481Sborman void netflush();
36986530481Sborman
37086530481Sborman /*
37186530481Sborman * Get a copy of terminal characteristics.
37286530481Sborman */
37386530481Sborman init_termbuf();
37486530481Sborman
37586530481Sborman /*
37686530481Sborman * Process request from client. code tells what it is.
37786530481Sborman */
37886530481Sborman switch (code) {
37986530481Sborman #ifdef LINEMODE
38086530481Sborman case TELOPT_LINEMODE:
38186530481Sborman /*
38286530481Sborman * Don't do anything unless client is asking us to change
38386530481Sborman * modes.
38486530481Sborman */
38586530481Sborman uselinemode = (parm1 == WILL);
38686530481Sborman if (uselinemode != linemode) {
38786530481Sborman # ifdef KLUDGELINEMODE
38886530481Sborman /*
38986530481Sborman * If using kludge linemode, make sure that
39086530481Sborman * we can do what the client asks.
39186530481Sborman * We can not turn off linemode if alwayslinemode
392a09b88c8Sborman * and the ICANON bit is set.
39386530481Sborman */
39486530481Sborman if (lmodetype == KLUDGE_LINEMODE) {
395a09b88c8Sborman if (alwayslinemode && tty_isediting()) {
39686530481Sborman uselinemode = 1;
39786530481Sborman }
39886530481Sborman }
39986530481Sborman
40086530481Sborman /*
40186530481Sborman * Quit now if we can't do it.
40286530481Sborman */
40386530481Sborman if (uselinemode == linemode)
40486530481Sborman return;
40586530481Sborman
40686530481Sborman /*
40786530481Sborman * If using real linemode and linemode is being
40886530481Sborman * turned on, send along the edit mode mask.
40986530481Sborman */
41086530481Sborman if (lmodetype == REAL_LINEMODE && uselinemode)
41186530481Sborman # else /* KLUDGELINEMODE */
41286530481Sborman if (uselinemode)
41386530481Sborman # endif /* KLUDGELINEMODE */
41486530481Sborman {
41586530481Sborman useeditmode = 0;
41686530481Sborman if (tty_isediting())
41786530481Sborman useeditmode |= MODE_EDIT;
418f9a01b3eSdab if (tty_istrapsig)
41986530481Sborman useeditmode |= MODE_TRAPSIG;
420658176a6Sborman if (tty_issofttab())
421658176a6Sborman useeditmode |= MODE_SOFT_TAB;
422658176a6Sborman if (tty_islitecho())
423658176a6Sborman useeditmode |= MODE_LIT_ECHO;
42486530481Sborman (void) sprintf(nfrontp, "%c%c%c%c%c%c%c", IAC,
42586530481Sborman SB, TELOPT_LINEMODE, LM_MODE,
42686530481Sborman useeditmode, IAC, SE);
42786530481Sborman nfrontp += 7;
42886530481Sborman editmode = useeditmode;
42986530481Sborman }
43086530481Sborman
43186530481Sborman
43286530481Sborman tty_setlinemode(uselinemode);
43386530481Sborman
43486530481Sborman linemode = uselinemode;
43586530481Sborman
436a2574097Sdab if (!linemode)
437a2574097Sdab send_will(TELOPT_ECHO, 1);
43886530481Sborman }
43986530481Sborman break;
44086530481Sborman
44186530481Sborman case LM_MODE:
44286530481Sborman {
443658176a6Sborman register int ack, changed;
44486530481Sborman
44586530481Sborman /*
44686530481Sborman * Client has sent along a mode mask. If it agrees with
44786530481Sborman * what we are currently doing, ignore it; if not, it could
44886530481Sborman * be viewed as a request to change. Note that the server
44986530481Sborman * will change to the modes in an ack if it is different from
45086530481Sborman * what we currently have, but we will not ack the ack.
45186530481Sborman */
45286530481Sborman useeditmode &= MODE_MASK;
45386530481Sborman ack = (useeditmode & MODE_ACK);
45486530481Sborman useeditmode &= ~MODE_ACK;
45586530481Sborman
456658176a6Sborman if (changed = (useeditmode ^ editmode)) {
457f9a01b3eSdab /*
458f9a01b3eSdab * This check is for a timing problem. If the
459f9a01b3eSdab * state of the tty has changed (due to the user
460f9a01b3eSdab * application) we need to process that info
461f9a01b3eSdab * before we write in the state contained in the
462f9a01b3eSdab * ack!!! This gets out the new MODE request,
463f9a01b3eSdab * and when the ack to that command comes back
464f9a01b3eSdab * we'll set it and be in the right mode.
465f9a01b3eSdab */
466f9a01b3eSdab if (ack)
467f9a01b3eSdab localstat();
468658176a6Sborman if (changed & MODE_EDIT)
469658176a6Sborman tty_setedit(useeditmode & MODE_EDIT);
47086530481Sborman
471658176a6Sborman if (changed & MODE_TRAPSIG)
472658176a6Sborman tty_setsig(useeditmode & MODE_TRAPSIG);
473658176a6Sborman
474658176a6Sborman if (changed & MODE_SOFT_TAB)
475658176a6Sborman tty_setsofttab(useeditmode & MODE_SOFT_TAB);
476658176a6Sborman
477658176a6Sborman if (changed & MODE_LIT_ECHO)
478658176a6Sborman tty_setlitecho(useeditmode & MODE_LIT_ECHO);
47986530481Sborman
48086530481Sborman set_termbuf();
48186530481Sborman
48286530481Sborman if (!ack) {
48386530481Sborman (void) sprintf(nfrontp, "%c%c%c%c%c%c%c", IAC,
48486530481Sborman SB, TELOPT_LINEMODE, LM_MODE,
48586530481Sborman useeditmode|MODE_ACK,
48686530481Sborman IAC, SE);
48786530481Sborman nfrontp += 7;
48886530481Sborman }
48986530481Sborman
49086530481Sborman editmode = useeditmode;
49186530481Sborman }
49286530481Sborman
49386530481Sborman break;
49486530481Sborman
49586530481Sborman } /* end of case LM_MODE */
49686530481Sborman #endif /* LINEMODE */
49786530481Sborman
49886530481Sborman case TELOPT_NAWS:
49986530481Sborman #ifdef TIOCSWINSZ
50086530481Sborman {
50186530481Sborman struct winsize ws;
50286530481Sborman
503f9a01b3eSdab def_col = parm1;
504f9a01b3eSdab def_row = parm2;
50586530481Sborman #ifdef LINEMODE
50686530481Sborman /*
50786530481Sborman * Defer changing window size until after terminal is
50886530481Sborman * initialized.
50986530481Sborman */
510f9a01b3eSdab if (terminit() == 0)
51186530481Sborman return;
51286530481Sborman #endif /* LINEMODE */
51386530481Sborman
51486530481Sborman /*
51586530481Sborman * Change window size as requested by client.
51686530481Sborman */
51786530481Sborman
51886530481Sborman ws.ws_col = parm1;
51986530481Sborman ws.ws_row = parm2;
52086530481Sborman (void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
52186530481Sborman }
52286530481Sborman #endif /* TIOCSWINSZ */
52386530481Sborman
52486530481Sborman break;
52586530481Sborman
52686530481Sborman case TELOPT_TSPEED:
52786530481Sborman {
528f9a01b3eSdab def_tspeed = parm1;
529f9a01b3eSdab def_rspeed = parm2;
53086530481Sborman #ifdef LINEMODE
53186530481Sborman /*
53286530481Sborman * Defer changing the terminal speed.
53386530481Sborman */
534f9a01b3eSdab if (terminit() == 0)
53586530481Sborman return;
53686530481Sborman #endif /* LINEMODE */
53786530481Sborman /*
53886530481Sborman * Change terminal speed as requested by client.
539f9a01b3eSdab * We set the receive speed first, so that if we can't
540f9a01b3eSdab * store seperate receive and transmit speeds, the transmit
541f9a01b3eSdab * speed will take precedence.
54286530481Sborman */
54386530481Sborman tty_rspeed(parm2);
544f9a01b3eSdab tty_tspeed(parm1);
54586530481Sborman set_termbuf();
54686530481Sborman
54786530481Sborman break;
54886530481Sborman
54986530481Sborman } /* end of case TELOPT_TSPEED */
55086530481Sborman
55186530481Sborman default:
55286530481Sborman /* What? */
55386530481Sborman break;
55486530481Sborman } /* end of switch */
55586530481Sborman
55617cc352bSborman #if defined(CRAY2) && defined(UNICOS5)
55786530481Sborman /*
55886530481Sborman * Just in case of the likely event that we changed the pty state.
55986530481Sborman */
56086530481Sborman rcv_ioctl();
56117cc352bSborman #endif /* defined(CRAY2) && defined(UNICOS5) */
56286530481Sborman
56386530481Sborman netflush();
56486530481Sborman
56586530481Sborman } /* end of clientstat */
56686530481Sborman
56717cc352bSborman #if defined(CRAY2) && defined(UNICOS5)
568f9a01b3eSdab void
termstat()56986530481Sborman termstat()
57086530481Sborman {
57186530481Sborman needtermstat = 1;
57286530481Sborman }
57386530481Sborman
574f9a01b3eSdab void
_termstat()57586530481Sborman _termstat()
57686530481Sborman {
57786530481Sborman needtermstat = 0;
57886530481Sborman init_termbuf();
57986530481Sborman localstat();
58086530481Sborman rcv_ioctl();
58186530481Sborman }
58217cc352bSborman #endif /* defined(CRAY2) && defined(UNICOS5) */
58386530481Sborman
58486530481Sborman #ifdef LINEMODE
58586530481Sborman /*
58686530481Sborman * defer_terminit
58786530481Sborman *
58886530481Sborman * Some things should not be done until after the login process has started
58986530481Sborman * and all the pty modes are set to what they are supposed to be. This
59086530481Sborman * function is called when the pty state has been processed for the first time.
59186530481Sborman * It calls other functions that do things that were deferred in each module.
59286530481Sborman */
593f9a01b3eSdab void
defer_terminit()59486530481Sborman defer_terminit()
59586530481Sborman {
59686530481Sborman
59786530481Sborman /*
59886530481Sborman * local stuff that got deferred.
59986530481Sborman */
60086530481Sborman if (def_tspeed != -1) {
60186530481Sborman clientstat(TELOPT_TSPEED, def_tspeed, def_rspeed);
60286530481Sborman def_tspeed = def_rspeed = 0;
60386530481Sborman }
60486530481Sborman
60586530481Sborman #ifdef TIOCSWINSZ
60686530481Sborman if (def_col || def_row) {
60786530481Sborman struct winsize ws;
60886530481Sborman
609*de436421Sdab memset((char *)&ws, 0, sizeof(ws));
61086530481Sborman ws.ws_col = def_col;
61186530481Sborman ws.ws_row = def_row;
61286530481Sborman (void) ioctl(pty, TIOCSWINSZ, (char *)&ws);
61386530481Sborman }
61486530481Sborman #endif
61586530481Sborman
61686530481Sborman /*
61786530481Sborman * The only other module that currently defers anything.
61886530481Sborman */
61986530481Sborman deferslc();
62086530481Sborman
62186530481Sborman } /* end of defer_terminit */
62286530481Sborman
62386530481Sborman /*
62486530481Sborman * terminit
62586530481Sborman *
62686530481Sborman * Returns true if the pty state has been processed yet.
62786530481Sborman */
628f9a01b3eSdab int
terminit()629f9a01b3eSdab terminit()
63086530481Sborman {
631a2574097Sdab return(_terminit);
63286530481Sborman
63386530481Sborman } /* end of terminit */
63486530481Sborman #endif /* LINEMODE */
635