1 /* $NetBSD: wwinit.c,v 1.19 2009/04/14 08:50:06 lukem Exp $ */
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
38 static char sccsid[] = "@(#)wwinit.c 8.2 (Berkeley) 4/28/95";
40 __RCSID("$NetBSD: wwinit.c,v 1.19 2009/04/14 08:50:06 lukem Exp $");
59 sigset_t nsigset, osigset;
62 wwhead.ww_forw = &wwhead;
63 wwhead.ww_back = &wwhead;
65 sigemptyset(&nsigset);
66 sigaddset(&nsigset, SIGCHLD);
67 sigaddset(&nsigset, SIGALRM);
68 sigaddset(&nsigset, SIGHUP);
69 sigaddset(&nsigset, SIGTERM);
70 sigprocmask(SIG_BLOCK, &nsigset, &osigset);
72 if (signal(SIGCHLD, wwchild) == SIG_ERR ||
73 signal(SIGHUP, wwquit) == SIG_ERR ||
74 signal(SIGTERM, wwquit) == SIG_ERR ||
75 signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
80 if (wwgettty(0, &wwoldtty) < 0)
84 wwwintty.ww_sgttyb.sg_flags &= ~XTABS;
85 wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb;
86 wwnewtty.ww_sgttyb.sg_erase = -1;
87 wwnewtty.ww_sgttyb.sg_kill = -1;
88 wwnewtty.ww_sgttyb.sg_flags |= CBREAK;
89 wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD);
90 wwnewtty.ww_tchars.t_intrc = -1;
91 wwnewtty.ww_tchars.t_quitc = -1;
92 wwnewtty.ww_tchars.t_startc = -1;
93 wwnewtty.ww_tchars.t_stopc = -1;
94 wwnewtty.ww_tchars.t_eofc = -1;
95 wwnewtty.ww_tchars.t_brkc = -1;
96 wwnewtty.ww_ltchars.t_suspc = -1;
97 wwnewtty.ww_ltchars.t_dsuspc = -1;
98 wwnewtty.ww_ltchars.t_rprntc = -1;
99 wwnewtty.ww_ltchars.t_flushc = -1;
100 wwnewtty.ww_ltchars.t_werasc = -1;
101 wwnewtty.ww_ltchars.t_lnextc = -1;
102 wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT;
103 wwnewtty.ww_ldisc = wwoldtty.ww_ldisc;
108 #ifndef _POSIX_VDISABLE
109 #define _POSIX_VDISABLE -1
111 wwwintty.ww_termios.c_oflag &= ~OXTABS;
112 wwwintty.ww_termios.c_cflag &= ~CLOCAL;
113 wwwintty.ww_termios.c_cflag |= HUPCL;
114 wwnewtty.ww_termios = wwoldtty.ww_termios;
115 wwnewtty.ww_termios.c_iflag &=
116 ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF | IMAXBEL);
117 wwnewtty.ww_termios.c_oflag = 0;
118 wwnewtty.ww_termios.c_cflag &= ~(CSIZE | PARENB);
119 wwnewtty.ww_termios.c_cflag |= CS8;
120 wwnewtty.ww_termios.c_lflag = 0;
121 for (i = 0; i < NCCS; i++)
122 wwnewtty.ww_termios.c_cc[i] = _POSIX_VDISABLE;
123 wwnewtty.ww_termios.c_cc[VMIN] = 1;
124 wwnewtty.ww_termios.c_cc[VTIME] = 0;
126 if (wwsettty(0, &wwnewtty) < 0)
129 if ((wwterm = getenv("TERM")) == 0) {
130 wwerrno = WWE_BADTERM;
133 if (tgetent(wwtermcap, wwterm) != 1) {
134 wwerrno = WWE_BADTERM;
138 wwospeed = wwoldtty.ww_sgttyb.sg_ospeed;
140 wwospeed = cfgetospeed(&wwoldtty.ww_termios);
217 wwavailmodes = tt.tt_availmodes;
220 if (wwavailmodes & WWM_REV)
221 wwcursormodes = WWM_REV | (wwavailmodes & WWM_BLK);
222 else if (wwavailmodes & WWM_UL)
223 wwcursormodes = WWM_UL;
225 if ((wwib = malloc((unsigned) 512)) == 0)
228 wwibq = wwibp = wwib;
230 wwsmap = (unsigned char **)
231 wwalloc(0, 0, wwnrow, wwncol, sizeof (unsigned char));
234 for (i = 0; i < wwnrow; i++)
235 for (j = 0; j < wwncol; j++)
236 wwsmap[i][j] = WWX_NOBODY;
238 wwos = (union ww_char **)
239 wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
242 /* wwos is cleared in wwstart1() */
243 wwns = (union ww_char **)
244 wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
247 for (i = 0; i < wwnrow; i++)
248 for (j = 0; j < wwncol; j++)
249 wwns[i][j].c_w = ' ';
250 if (tt.tt_checkpoint) {
251 /* wwcs is also cleared in wwstart1() */
252 wwcs = (union ww_char **)
253 wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
258 wwtouched = malloc((unsigned) wwnrow);
259 if (wwtouched == 0) {
263 for (i = 0; i < wwnrow; i++)
266 wwupd = (struct ww_update *) malloc((unsigned) wwnrow * sizeof *wwupd);
272 wwindex[WWX_NOBODY] = &wwnobody;
273 wwnobody.ww_order = NWW;
276 if (wwavailmodes & WWM_REV)
277 wwaddcap1(WWT_REV, &kp);
278 if (wwavailmodes & WWM_BLK)
279 wwaddcap1(WWT_BLK, &kp);
280 if (wwavailmodes & WWM_UL)
281 wwaddcap1(WWT_UL, &kp);
282 if (wwavailmodes & WWM_GRP)
283 wwaddcap1(WWT_GRP, &kp);
284 if (wwavailmodes & WWM_DIM)
285 wwaddcap1(WWT_DIM, &kp);
286 if (wwavailmodes & WWM_USR)
287 wwaddcap1(WWT_USR, &kp);
288 if ((tt.tt_insline && tt.tt_delline) || tt.tt_setscroll)
289 wwaddcap1(WWT_ALDL, &kp);
291 wwaddcap1(WWT_IMEI, &kp);
293 wwaddcap1(WWT_IC, &kp);
295 wwaddcap1(WWT_DC, &kp);
302 if ((j = tgetnum("kn")) >= 0) {
305 (void) sprintf(kp, "kn#%d:", j);
308 for (i = 1; i <= j; i++) {
309 (void) sprintf(cap, "k%d", i);
316 * It's ok to do this here even if setenv() is destructive
317 * since tt_init() has already made its own copy of it and
318 * wwterm now points to the copy.
320 (void) setenv("TERM", WWT_TERM, 1);
322 if (wwterminfoinit() < 0)
326 if (tt.tt_checkpoint)
327 if (signal(SIGALRM, wwalarm) == SIG_ERR) {
333 sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0);
338 * Don't bother to free storage. We're supposed
339 * to exit when wwinit fails anyway.
341 (void) wwsettty(0, &wwoldtty);
343 sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0);
348 wwaddcap(const char *cap, char **kp)
355 if ((str = tgetstr(cap, &tp)) != 0) {
356 while ((*(*kp)++ = *cap++))
360 for (p = unctrl(*str++); (*(*kp)++ = *p++);)
370 wwaddcap1(const char *cap, char **kp)
372 while ((*(*kp)++ = *cap++))
382 (void) wwsettty(0, &wwnewtty);
383 for (i = 0; i < wwnrow; i++)
384 wwtouched[i] = WWU_TOUCHED;
393 for (i = 0; i < wwnrow; i++)
394 for (j = 0; j < wwncol; j++) {
395 wwos[i][j].c_w = ' ';
396 if (tt.tt_checkpoint)
397 wwcs[i][j].c_w = ' ';
400 if (tt.tt_checkpoint)
405 * Reset data structures and terminal from an unknown state.
406 * Restoring wwos has been taken care of elsewhere.
414 for (i = 0; i < wwnrow; i++)
415 wwtouched[i] = WWU_TOUCHED;