1 /* $NetBSD: curterm.c,v 1.10 2013/11/18 20:51:03 joerg Exp $ */
2
3 /*
4 * Copyright (c) 2009, 2011 The NetBSD Foundation, Inc.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Roy Marples.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __RCSID("$NetBSD: curterm.c,v 1.10 2013/11/18 20:51:03 joerg Exp $");
32
33 #include <assert.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <term_private.h>
37 #include <term.h>
38 #include <termios.h>
39 #include <stdio.h>
40
41 TERMINAL *cur_term;
42
43 /*
44 * There is no standard way of getting a list of aliases for the
45 * terminal. However, some applications such as telnet want to know this.
46 * ncurses dumps the terminfo header into an undefined variable ttytype
47 * and these applications then parse it to work out the aliases.
48 * We should do the same for now, until a standard mechanism for getting
49 * the information is available or the need for it goes away.
50 */
51 #define NAMESIZE 256
52 char ttytype[NAMESIZE];
53
54 static const speed_t bauds[] = {
55 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 2400, 4800, 9600,
56 19200, 38400, 57600, 115200, 230400, 460800, 921600
57 };
58
59 void
_ti_setospeed(TERMINAL * term)60 _ti_setospeed(TERMINAL *term)
61 {
62 struct termios termios;
63 speed_t os;
64 size_t i;
65
66 _DIAGASSERT(term != NULL);
67
68 term->_ospeed = 0;
69 if (tcgetattr(term->fildes, &termios) == 0) {
70 os = cfgetospeed(&termios);
71 for (i = 0; i < __arraycount(bauds); i++)
72 if (bauds[i] == os) {
73 term->_ospeed = i;
74 break;
75 }
76 }
77 }
78
79 TERMINAL *
set_curterm(TERMINAL * nterm)80 set_curterm(TERMINAL *nterm)
81 {
82 TERMINAL *oterm;
83 size_t l, n;
84 char *p;
85
86 oterm = cur_term;
87 cur_term = nterm;
88
89 ospeed = 0;
90 if (cur_term == NULL)
91 PC = '\0';
92 else {
93 if (pad_char == NULL)
94 PC = '\0';
95 else
96 PC = *pad_char;
97 _ti_setospeed(nterm);
98 ospeed = nterm->_ospeed;
99
100 p = ttytype;
101 l = sizeof(ttytype);
102 if ((n = strlcpy(p, nterm->name, l)) == strlen(p)) {
103 p += n;
104 l -= n;
105 *p++ = '|';
106 l--;
107 if (nterm->_alias &&
108 (n = strlcpy(p, nterm->_alias, l)) == strlen(p))
109 {
110 p += n;
111 l -= n;
112 *p++ = '|';
113 l--;
114 }
115 if (nterm->desc &&
116 (n = strlcpy(p, nterm->desc, l)) == strlen(p))
117 {
118 p += n;
119 l -= n;
120 *p++ = '|';
121 l--;
122 }
123 p--;
124 }
125 *p = '\0';
126 }
127
128 return oterm;
129 }
130
131 int
del_curterm(TERMINAL * oterm)132 del_curterm(TERMINAL *oterm)
133 {
134
135 if (oterm == NULL)
136 return ERR;
137 free(oterm->_area);
138 free(oterm->strs);
139 free(oterm->nums);
140 free(oterm->flags);
141 free(oterm->_userdefs);
142 free(oterm);
143 return OK;
144 }
145
146 char *
termname(void)147 termname(void)
148 {
149
150 _DIAGASSERT(cur_term != NULL);
151 return __UNCONST(cur_term->name);
152 }
153
154 static const char * nullname = "";
155
156 char *
longname(void)157 longname(void)
158 {
159
160 _DIAGASSERT(cur_term != NULL);
161 if (cur_term->desc == NULL)
162 return __UNCONST(nullname);
163 return __UNCONST(cur_term->desc);
164 }
165