1/*	$NetBSD: ttinit.c,v 1.8 2003/08/13 15:13:46 itojun Exp $	*/
2
3/*
4 * Copyright (c) 1983, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
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.
21 *
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
32 * SUCH DAMAGE.
33 */
34
35#include <sys/cdefs.h>
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)ttinit.c	8.1 (Berkeley) 6/6/93";
39#else
40__RCSID("$NetBSD: ttinit.c,v 1.8 2003/08/13 15:13:46 itojun Exp $");
41#endif
42#endif /* not lint */
43
44#include <stdlib.h>
45#include <string.h>
46#include "ww.h"
47#include "tt.h"
48
49struct tt tt;
50char tt_strings[1024];		/* string buffer */
51char *tt_strp;			/* pointer for it */
52char *tt_ob;
53char *tt_obp;
54char *tt_obe;
55
56struct tt_tab tt_tab[] = {
57	{ "h19",	3, tt_h19 },
58	{ "h29",	3, tt_h29 },
59	{ "f100",	4, tt_f100 },
60	{ "tvi925",	6, tt_tvi925 },
61	{ "wyse75",	6, tt_wyse75 },
62	{ "wyse60",	6, tt_wyse60 },
63	{ "w60",	3, tt_wyse60 },
64	{ "zapple",	6, tt_zapple },
65	{ "zentec",	6, tt_zentec },
66	{ "generic",	0, tt_generic },
67	{ 0,		0, 0 }
68};
69
70int
71ttinit(void)
72{
73	int i;
74	struct tt_tab *tp;
75	char *p, *q;
76	char *t;
77
78	tt_strp = tt_strings;
79
80	/*
81	 * Set output buffer size to about 1 second of output time.
82	 */
83	i = MIN(wwbaud/10, 512);
84	if ((tt_ob = malloc((unsigned) i)) == 0) {
85		wwerrno = WWE_NOMEM;
86		return -1;
87	}
88	tt_obp = tt_ob;
89	tt_obe = tt_ob + i;
90
91	/*
92	 * Use the standard name of the terminal (i.e. the second
93	 * name in termcap).
94	 */
95	for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
96		;
97	if (*p == '|')
98		p++;
99	for (q = p; *q && *q != '|' && *q != ':'; q++)
100		;
101	if (q != p && (t = malloc((unsigned) (q - p + 1))) != 0) {
102		wwterm = t;
103		while (p < q)
104			*t++ = *p++;
105		*t = 0;
106	}
107	for (tp = tt_tab; tp->tt_name != 0; tp++)
108		if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
109			break;
110	if (tp->tt_name == 0) {
111		wwerrno = WWE_BADTERM;
112		return -1;
113	}
114	if ((*tp->tt_func)() < 0) {
115		wwerrno = WWE_CANTDO;
116		return -1;
117	}
118	if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
119		return -1;
120	tt.tt_scroll_top = 0;
121	tt.tt_scroll_bot = tt.tt_nrow - 1;
122	return 0;
123}
124