1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* $NetBSD: setupterm.c,v 1.4 2013/06/07 13:16:18 roy Exp $ */
/*
* Copyright (c) 2009, 2011 The NetBSD Foundation, Inc.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Roy Marples.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: setupterm.c,v 1.4 2013/06/07 13:16:18 roy Exp $");
#include <assert.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <term_private.h>
#include <term.h>
#define reterr(code, msg) \
do { \
if (errret == NULL) \
errx(EXIT_FAILURE, msg); \
else { \
*errret = code; \
return ERR; \
} \
} while (0 /* CONSTCOND */)
#define reterrarg(code, msg, arg) \
do { \
if (errret == NULL) \
errx(EXIT_FAILURE, msg, arg); \
else { \
*errret = code; \
return ERR; \
} \
} while (0 /* CONSTCOND */)
int
ti_setupterm(TERMINAL **nterm, const char *term, int fildes, int *errret)
{
int error;
_DIAGASSERT(nterm != NULL);
if (term == NULL)
term = getenv("TERM");
if (term == NULL || *term == '\0') {
*nterm = NULL;
reterr(0, "TERM environment variable not set");
}
if (fildes == STDOUT_FILENO && !isatty(fildes))
fildes = STDERR_FILENO;
*nterm = calloc(1, sizeof(**nterm));
if (*nterm == NULL)
reterr(-1, "not enough memory to create terminal structure");
error = _ti_getterm(*nterm, term, 0);
if (error != 1) {
del_curterm(*nterm);
*nterm = NULL;
switch (error) {
case -1:
reterr(error, "cannot access the terminfo database");
/* NOTREACHED */
case 0:
reterrarg(error,
"%s: terminal not listed in terminfo datase",
term);
/* NOTREACHED */
default:
reterr(-1, "unknown error");
/* NOTREACHED */
}
}
(*nterm)->fildes = fildes;
_ti_setospeed(*nterm);
if (t_generic_type(*nterm))
reterrarg(0, "%s: generic terminal", term);
if (t_hard_copy(*nterm))
reterrarg(1, "%s: hardcopy terminal", term);
/* POSIX requires 1 for success */
if (errret)
*errret = 1;
return OK;
}
int
setupterm(const char *term, int fildes, int *errret)
{
TERMINAL *nterm;
int ret;
if (errret != NULL)
*errret = ERR;
ret = ti_setupterm(&nterm, term, fildes, errret);
if (nterm != NULL)
set_curterm(nterm);
return ret;
}
|
