xref: /dragonfly/usr.bin/window/ttinit.c (revision b40e316c)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  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, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * @(#)ttinit.c	8.1 (Berkeley) 6/6/93
37  * $FreeBSD: src/usr.bin/window/ttinit.c,v 1.2.12.1 2001/05/17 09:45:01 obrien Exp $
38  * $DragonFly: src/usr.bin/window/ttinit.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
39  */
40 
41 #include "ww.h"
42 #include "tt.h"
43 #include <stdlib.h>
44 
45 int tt_h19();
46 int tt_h29();
47 int tt_f100();
48 int tt_tvi925();
49 int tt_wyse75();
50 int tt_wyse60();
51 int tt_zapple();
52 int tt_zentec();
53 int tt_generic();
54 struct tt_tab tt_tab[] = {
55 	{ "h19",	3, tt_h19 },
56 	{ "h29",	3, tt_h29 },
57 	{ "f100",	4, tt_f100 },
58 	{ "tvi925",	6, tt_tvi925 },
59 	{ "wyse75",	6, tt_wyse75 },
60 	{ "wyse60",	6, tt_wyse60 },
61 	{ "w60",	3, tt_wyse60 },
62 	{ "zapple",	6, tt_zapple },
63 	{ "zentec",	6, tt_zentec },
64 	{ "generic",	0, tt_generic },
65 	0
66 };
67 
68 ttinit()
69 {
70 	int i;
71 	register struct tt_tab *tp;
72 	register char *p, *q;
73 	register char *t;
74 
75 	tt_strp = tt_strings;
76 
77 	/*
78 	 * Set output buffer size to about 1 second of output time.
79 	 */
80 	i = MIN(wwbaud/10, 512);
81 	if ((tt_ob = malloc((unsigned) i)) == 0) {
82 		wwerrno = WWE_NOMEM;
83 		return -1;
84 	}
85 	tt_obp = tt_ob;
86 	tt_obe = tt_ob + i;
87 
88 	/*
89 	 * Use the standard name of the terminal (i.e. the second
90 	 * name in termcap).
91 	 */
92 	for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
93 		;
94 	if (*p == '|')
95 		p++;
96 	for (q = p; *q && *q != '|' && *q != ':'; q++)
97 		;
98 	if (q != p && (t = malloc((unsigned) (q - p + 1))) != 0) {
99 		wwterm = t;
100 		while (p < q)
101 			*t++ = *p++;
102 		*t = 0;
103 	}
104 	for (tp = tt_tab; tp->tt_name != 0; tp++)
105 		if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
106 			break;
107 	if (tp->tt_name == 0) {
108 		wwerrno = WWE_BADTERM;
109 		return -1;
110 	}
111 	if ((*tp->tt_func)() < 0) {
112 		wwerrno = WWE_CANTDO;
113 		return -1;
114 	}
115 	if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
116 		return -1;
117 	tt.tt_scroll_top = 0;
118 	tt.tt_scroll_bot = tt.tt_nrow - 1;
119 	return 0;
120 }
121