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1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Edward Wang at The University of California, Berkeley.
7: *
8: * Redistribution and use in source and binary forms are permitted provided
9: * that: (1) source distributions retain this entire copyright notice and
10: * comment, and (2) distributions including binaries display the following
11: * acknowledgement: ``This product includes software developed by the
12: * University of California, Berkeley and its contributors'' in the
13: * documentation or other materials provided with the distribution and in
14: * all advertising materials mentioning features or use of this software.
15: * Neither the name of the University nor the names of its contributors may
16: * be used to endorse or promote products derived from this software without
17: * specific prior written permission.
18: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21: */
22:
23: #ifndef lint
24: static char sccsid[] = "@(#)wwinit.c 3.39 (Berkeley) 6/6/90";
25: #endif /* not lint */
26:
27: #include "ww.h"
28: #include "tt.h"
29: #include <sys/signal.h>
30: #include <fcntl.h>
31: #include "char.h"
32:
33: wwinit()
34: {
35: register i, j;
36: char *kp;
37: int s;
38:
39: wwdtablesize = getdtablesize();
40: wwhead.ww_forw = &wwhead;
41: wwhead.ww_back = &wwhead;
42:
43: s = sigblock(sigmask(SIGIO));
44: if (signal(SIGIO, wwrint) == BADSIG ||
45: signal(SIGCHLD, wwchild) == BADSIG ||
46: signal(SIGPIPE, SIG_IGN) == BADSIG) {
47: wwerrno = WWE_SYS;
48: return -1;
49: }
50:
51: if (wwgettty(0, &wwoldtty) < 0)
52: return -1;
53: wwwintty = wwoldtty;
54: #ifndef POSIX_TTY
55: wwwintty.ww_sgttyb.sg_flags &= ~XTABS;
56: wwnewtty.ww_sgttyb = wwoldtty.ww_sgttyb;
57: wwnewtty.ww_sgttyb.sg_erase = -1;
58: wwnewtty.ww_sgttyb.sg_kill = -1;
59: wwnewtty.ww_sgttyb.sg_flags |= CBREAK;
60: wwnewtty.ww_sgttyb.sg_flags &= ~(ECHO|CRMOD);
61: wwnewtty.ww_tchars.t_intrc = -1;
62: wwnewtty.ww_tchars.t_quitc = -1;
63: wwnewtty.ww_tchars.t_startc = -1;
64: wwnewtty.ww_tchars.t_stopc = -1;
65: wwnewtty.ww_tchars.t_eofc = -1;
66: wwnewtty.ww_tchars.t_brkc = -1;
67: wwnewtty.ww_ltchars.t_suspc = -1;
68: wwnewtty.ww_ltchars.t_dsuspc = -1;
69: wwnewtty.ww_ltchars.t_rprntc = -1;
70: wwnewtty.ww_ltchars.t_flushc = -1;
71: wwnewtty.ww_ltchars.t_werasc = -1;
72: wwnewtty.ww_ltchars.t_lnextc = -1;
73: wwnewtty.ww_lmode = wwoldtty.ww_lmode | LLITOUT;
74: wwnewtty.ww_ldisc = wwoldtty.ww_ldisc;
75: #else
76: wwwintty.ww_termios.c_oflag &= ~OXTABS;
77: wwnewtty.ww_termios = wwoldtty.ww_termios;
78: wwnewtty.ww_termios.c_iflag &=
79: ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF | IMAXBEL);
80: wwnewtty.ww_termios.c_iflag |= INPCK;
81: wwnewtty.ww_termios.c_oflag = 0;
82: wwnewtty.ww_termios.c_cflag &= ~(CSIZE | PARENB);
83: wwnewtty.ww_termios.c_cflag |= CS8;
84: wwnewtty.ww_termios.c_lflag = 0;
85: for (i = 0; i < NCC; i++)
86: wwnewtty.ww_termios.c_cc[i] = _POSIX_VDISABLE;
87: #endif
88: wwnewtty.ww_fflags = wwoldtty.ww_fflags | FASYNC;
89: if (wwsettty(0, &wwnewtty, &wwoldtty) < 0)
90: goto bad;
91:
92: if ((wwterm = getenv("TERM")) == 0) {
93: wwerrno = WWE_BADTERM;
94: goto bad;
95: }
96: if (tgetent(wwtermcap, wwterm) != 1) {
97: wwerrno = WWE_BADTERM;
98: goto bad;
99: }
100: #ifndef POSIX_TTY
101: wwbaud = wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed];
102: #else
103: #ifdef CBAUD
104: wwbaud = wwbaudmap[wwoldtty.ww_termios.c_cflag & CBAUD];
105: #else
106: wwbaud = wwoldtty.ww_termios.c_ospeed;
107: #endif
108: #endif
109:
110: if (xxinit() < 0)
111: goto bad;
112: wwnrow = tt.tt_nrow;
113: wwncol = tt.tt_ncol;
114: wwavailmodes = tt.tt_availmodes;
115: wwwrap = tt.tt_wrap;
116:
117: if (wwavailmodes & WWM_REV)
118: wwcursormodes = WWM_REV | wwavailmodes & WWM_BLK;
119: else if (wwavailmodes & WWM_UL)
120: wwcursormodes = WWM_UL;
121:
122: if ((wwib = malloc((unsigned) 512)) == 0)
123: goto bad;
124: wwibe = wwib + 512;
125: wwibq = wwibp = wwib;
126:
127: if ((wwsmap = wwalloc(0, 0, wwnrow, wwncol, sizeof (char))) == 0)
128: goto bad;
129: for (i = 0; i < wwnrow; i++)
130: for (j = 0; j < wwncol; j++)
131: wwsmap[i][j] = WWX_NOBODY;
132:
133: wwos = (union ww_char **)
134: wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
135: if (wwos == 0)
136: goto bad;
137: for (i = 0; i < wwnrow; i++)
138: for (j = 0; j < wwncol; j++)
139: wwos[i][j].c_w = ' ';
140: wwns = (union ww_char **)
141: wwalloc(0, 0, wwnrow, wwncol, sizeof (union ww_char));
142: if (wwns == 0)
143: goto bad;
144: for (i = 0; i < wwnrow; i++)
145: for (j = 0; j < wwncol; j++)
146: wwns[i][j].c_w = ' ';
147:
148: wwtouched = malloc((unsigned) wwnrow);
149: if (wwtouched == 0) {
150: wwerrno = WWE_NOMEM;
151: goto bad;
152: }
153: for (i = 0; i < wwnrow; i++)
154: wwtouched[i] = 0;
155:
156: wwupd = (struct ww_update *) malloc((unsigned) wwnrow * sizeof *wwupd);
157: if (wwupd == 0) {
158: wwerrno = WWE_NOMEM;
159: goto bad;
160: }
161:
162: wwindex[WWX_NOBODY] = &wwnobody;
163: wwnobody.ww_order = NWW;
164:
165: kp = wwwintermcap;
166: if (wwavailmodes & WWM_REV)
167: wwaddcap1(WWT_REV, &kp);
168: if (wwavailmodes & WWM_BLK)
169: wwaddcap1(WWT_BLK, &kp);
170: if (wwavailmodes & WWM_UL)
171: wwaddcap1(WWT_UL, &kp);
172: if (wwavailmodes & WWM_GRP)
173: wwaddcap1(WWT_GRP, &kp);
174: if (wwavailmodes & WWM_DIM)
175: wwaddcap1(WWT_DIM, &kp);
176: if (wwavailmodes & WWM_USR)
177: wwaddcap1(WWT_USR, &kp);
178: if (tt.tt_insline && tt.tt_delline || tt.tt_setscroll)
179: wwaddcap1(WWT_ALDL, &kp);
180: if (tt.tt_inschar)
181: wwaddcap1(WWT_IMEI, &kp);
182: if (tt.tt_insspace)
183: wwaddcap1(WWT_IC, &kp);
184: if (tt.tt_delchar)
185: wwaddcap1(WWT_DC, &kp);
186: wwaddcap("kb", &kp);
187: wwaddcap("ku", &kp);
188: wwaddcap("kd", &kp);
189: wwaddcap("kl", &kp);
190: wwaddcap("kr", &kp);
191: wwaddcap("kh", &kp);
192: if ((j = tgetnum("kn")) >= 0) {
193: char cap[32];
194:
195: (void) sprintf(kp, "kn#%d:", j);
196: for (; *kp; kp++)
197: ;
198: for (i = 1; i <= j; i++) {
199: (void) sprintf(cap, "k%d", i);
200: wwaddcap(cap, &kp);
201: cap[0] = 'l';
202: wwaddcap(cap, &kp);
203: }
204: }
205: /*
206: * It's ok to do this here even if setenv() is destructive
207: * since tt_init() has already made its own copy of it and
208: * wwterm now points to the copy.
209: */
210: (void) setenv("TERM", WWT_TERM, 1);
211:
212: (void) sigsetmask(s);
213: /* catch typeahead before ASYNC was set */
214: (void) kill(getpid(), SIGIO);
215: xxstart();
216: return 0;
217: bad:
218: /*
219: * Don't bother to free storage. We're supposed
220: * to exit when wwinit fails anyway.
221: */
222: (void) wwsettty(0, &wwoldtty, &wwnewtty);
223: (void) signal(SIGIO, SIG_DFL);
224: (void) sigsetmask(s);
225: return -1;
226: }
227:
228: wwaddcap(cap, kp)
229: register char *cap;
230: register char **kp;
231: {
232: char tbuf[512];
233: char *tp = tbuf;
234: register char *str, *p;
235:
236: if ((str = tgetstr(cap, &tp)) != 0) {
237: while (*(*kp)++ = *cap++)
238: ;
239: (*kp)[-1] = '=';
240: while (*str) {
241: for (p = unctrl(*str++); *(*kp)++ = *p++;)
242: ;
243: (*kp)--;
244: }
245: *(*kp)++ = ':';
246: **kp = 0;
247: }
248: }
249:
250: wwaddcap1(cap, kp)
251: register char *cap;
252: register char **kp;
253: {
254: while (*(*kp)++ = *cap++)
255: ;
256: (*kp)--;
257: }
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