1 /* @(#)ttinit.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: ttinit.c,v 1.9 2003/08/13 15:21:07 itojun Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <stdlib.h>
37 #include <string.h>
38 #include "ww.h"
39 #include "tt.h"
40
41 struct tt tt;
42 char tt_strings[1024]; /* string buffer */
43 char *tt_strp; /* pointer for it */
44 char *tt_ob;
45 char *tt_obp;
46 char *tt_obe;
47
48 struct tt_tab tt_tab[] = {
49 { "h19", 3, tt_h19 },
50 { "h29", 3, tt_h29 },
51 { "f100", 4, tt_f100 },
52 { "tvi925", 6, tt_tvi925 },
53 { "wyse75", 6, tt_wyse75 },
54 { "wyse60", 6, tt_wyse60 },
55 { "w60", 3, tt_wyse60 },
56 { "zapple", 6, tt_zapple },
57 { "zentec", 6, tt_zentec },
58 { "generic", 0, tt_generic },
59 { 0, 0, 0 }
60 };
61
62 int
ttinit(void)63 ttinit(void)
64 {
65 int i;
66 struct tt_tab *tp;
67 char *p, *q;
68 char *t;
69
70 tt_strp = tt_strings;
71
72 /*
73 * Set output buffer size to about 1 second of output time.
74 */
75 i = MIN(wwbaud/10, 512);
76 if ((tt_ob = malloc((unsigned) i)) == NULL) {
77 wwerrno = WWE_NOMEM;
78 return -1;
79 }
80 tt_obp = tt_ob;
81 tt_obe = tt_ob + i;
82
83 /*
84 * Use the standard name of the terminal (i.e. the second
85 * name in termcap).
86 */
87 for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
88 ;
89 if (*p == '|')
90 p++;
91 for (q = p; *q && *q != '|' && *q != ':'; q++)
92 ;
93 if (q != p && (t = malloc((unsigned) (q - p + 1))) != NULL) {
94 wwterm = t;
95 while (p < q)
96 *t++ = *p++;
97 *t = 0;
98 }
99 for (tp = tt_tab; tp->tt_name != 0; tp++)
100 if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
101 break;
102 if (tp->tt_name == 0) {
103 wwerrno = WWE_BADTERM;
104 return -1;
105 }
106 if ((*tp->tt_func)() < 0) {
107 wwerrno = WWE_CANTDO;
108 return -1;
109 }
110 if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
111 return -1;
112 tt.tt_scroll_top = 0;
113 tt.tt_scroll_bot = tt.tt_nrow - 1;
114 return 0;
115 }
116