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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/String.h>
28#include <AK/HashMap.h>
29#include <assert.h>
30#include <stdio.h>
31#include <string.h>
32#include <termcap.h>
33
34//#define TERMCAP_DEBUG
35
36extern "C" {
37
38char PC;
39char* UP;
40char* BC;
41
42int tgetent(char* bp, const char* name)
43{
44 (void)bp;
45 (void)name;
46#ifdef TERMCAP_DEBUG
47 fprintf(stderr, "tgetent: bp=%p, name='%s'\n", bp, name);
48#endif
49 PC = '\0';
50 BC = const_cast<char*>("\033[D");
51 UP = const_cast<char*>("\033[A");
52 return 1;
53}
54
55static HashMap<String, const char*>* caps = nullptr;
56
57void ensure_caps()
58{
59 if (caps)
60 return;
61 caps = new HashMap<String, const char*>;
62 caps->set("DC", "\033[%p1%dP");
63 caps->set("IC", "\033[%p1%d@");
64 caps->set("ce", "\033[K");
65 caps->set("cl", "\033[H\033[J");
66 caps->set("cr", "\015");
67 caps->set("dc", "\033[P");
68 caps->set("ei", "");
69 caps->set("ic", "");
70 caps->set("im", "");
71 caps->set("kd", "\033[B");
72 caps->set("kl", "\033[D");
73 caps->set("kr", "\033[C");
74 caps->set("ku", "\033[A");
75 caps->set("ks", "");
76 caps->set("ke", "");
77 caps->set("le", "\033[D");
78 caps->set("mm", "");
79 caps->set("mo", "");
80 caps->set("pc", "");
81 caps->set("up", "\033[A");
82 caps->set("vb", "");
83 caps->set("am", "");
84 caps->set("@7", "");
85 caps->set("kH", "");
86 caps->set("kI", "\033[L");
87 caps->set("kh", "\033[H");
88 caps->set("vs", "");
89 caps->set("ve", "");
90 caps->set("E3", "");
91 caps->set("kD", "");
92 caps->set("nd", "\033[C");
93
94 caps->set("co", "80");
95 caps->set("li", "25");
96}
97
98char* tgetstr(const char* id, char** area)
99{
100 ensure_caps();
101#ifdef TERMCAP_DEBUG
102 fprintf(stderr, "tgetstr: id='%s'\n", id);
103#endif
104 auto it = caps->find(id);
105 if (it != caps->end()) {
106 char* ret = *area;
107 const char* val = (*it).value;
108 strcpy(*area, val);
109 *area += strlen(val) + 1;
110 return ret;
111 }
112 fprintf(stderr, "tgetstr: missing cap id='%s'\n", id);
113 return nullptr;
114}
115
116int tgetflag(const char* id)
117{
118 (void)id;
119#ifdef TERMCAP_DEBUG
120 fprintf(stderr, "tgetflag: '%s'\n", id);
121#endif
122 auto it = caps->find(id);
123 if (it != caps->end())
124 return 1;
125 return 0;
126}
127
128int tgetnum(const char* id)
129{
130#ifdef TERMCAP_DEBUG
131 fprintf(stderr, "tgetnum: '%s'\n", id);
132#endif
133 auto it = caps->find(id);
134 if (it != caps->end())
135 return atoi((*it).value);
136 ASSERT_NOT_REACHED();
137}
138
139char* tgoto(const char* cap, int col, int row)
140{
141 (void)cap;
142 (void)col;
143 (void)row;
144 ASSERT_NOT_REACHED();
145}
146
147int tputs(const char* str, int affcnt, int (*putc)(int))
148{
149 (void)affcnt;
150 size_t len = strlen(str);
151 for (size_t i = 0; i < len; ++i)
152 putc(str[i]);
153 return 0;
154}
155}