xref: /illumos-gate/usr/src/lib/libcurses/screen/setkeymap.c (revision 8119dad84d6416f13557b0ba8e2aaf9064cbcfd3)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 /*LINTLIBRARY*/
41 
42 #include	<sys/types.h>
43 #include	<stdlib.h>
44 #include	<string.h>
45 #include	"curses_inc.h"
46 
47 static	short	keycodes[] = {
48 		    KEY_BACKSPACE,
49 		    KEY_CATAB,
50 		    KEY_CLEAR,
51 		    KEY_CTAB,
52 		    KEY_DC,
53 		    KEY_DL,
54 		    KEY_DOWN,
55 		    KEY_EIC,
56 		    KEY_EOL,
57 		    KEY_EOS,
58 		    KEY_F(0),
59 		    KEY_F(1),
60 		    KEY_F(10),
61 		    KEY_F(2),
62 		    KEY_F(3),
63 		    KEY_F(4),
64 		    KEY_F(5),
65 		    KEY_F(6),
66 		    KEY_F(7),
67 		    KEY_F(8),
68 		    KEY_F(9),
69 		    KEY_HOME,
70 		    KEY_IC,
71 		    KEY_IL,
72 		    KEY_LEFT,
73 		    KEY_LL,
74 		    KEY_NPAGE,
75 		    KEY_PPAGE,
76 		    KEY_RIGHT,
77 		    KEY_SF,
78 		    KEY_SR,
79 		    KEY_STAB,
80 		    KEY_UP,
81 		    KEY_A1,
82 		    KEY_A3,
83 		    KEY_B2,
84 		    KEY_C1,
85 		    KEY_C3,
86 		    KEY_BTAB,
87 		    KEY_BEG,
88 		    KEY_CANCEL,
89 		    KEY_CLOSE,
90 		    KEY_COMMAND,
91 		    KEY_COPY,
92 		    KEY_CREATE,
93 		    KEY_END,
94 		    KEY_ENTER,
95 		    KEY_EXIT,
96 		    KEY_FIND,
97 		    KEY_HELP,
98 		    KEY_MARK,
99 		    KEY_MESSAGE,
100 		    KEY_MOVE,
101 		    KEY_NEXT,
102 		    KEY_OPEN,
103 		    KEY_OPTIONS,
104 		    KEY_PREVIOUS,
105 		    KEY_PRINT,
106 		    KEY_REDO,
107 		    KEY_REFERENCE,
108 		    KEY_REFRESH,
109 		    KEY_REPLACE,
110 		    KEY_RESTART,
111 		    KEY_RESUME,
112 		    KEY_SAVE,
113 		    KEY_SUSPEND,
114 		    KEY_UNDO,
115 		    KEY_SBEG,
116 		    KEY_SCANCEL,
117 		    KEY_SCOMMAND,
118 		    KEY_SCOPY,
119 		    KEY_SCREATE,
120 		    KEY_SDC,
121 		    KEY_SDL,
122 		    KEY_SELECT,
123 		    KEY_SEND,
124 		    KEY_SEOL,
125 		    KEY_SEXIT,
126 		    KEY_SFIND,
127 		    KEY_SHELP,
128 		    KEY_SHOME,
129 		    KEY_SIC,
130 		    KEY_SLEFT,
131 		    KEY_SMESSAGE,
132 		    KEY_SMOVE,
133 		    KEY_SNEXT,
134 		    KEY_SOPTIONS,
135 		    KEY_SPREVIOUS,
136 		    KEY_SPRINT,
137 		    KEY_SREDO,
138 		    KEY_SREPLACE,
139 		    KEY_SRIGHT,
140 		    KEY_SRSUME,
141 		    KEY_SSAVE,
142 		    KEY_SSUSPEND,
143 		    KEY_SUNDO,
144 		    KEY_MOUSE
145 		};
146 
147 static	_KEY_MAP	*p;
148 static	bool		*funckey;
149 static	short		*codeptr;
150 
151 static	void
152 _laddone(char *txt)
153 {
154 	p->_sends = (txt);
155 	p->_keyval = *codeptr;
156 	funckey[(unsigned char)(txt)[0]] |= _KEY;
157 	p++;
158 }
159 
160 /* Map text into num, updating the map structure p. */
161 
162 static	void
163 _keyfunc(char **keyptr, char **lastkey)
164 {
165 	for (; keyptr <= lastkey; keyptr++, codeptr++)
166 		if (*keyptr) {
167 			p->_sends = (*keyptr);
168 			p->_keyval = *codeptr;
169 			funckey[(unsigned char)(*keyptr)[0]] |= _KEY;
170 			p++;
171 		}
172 }
173 
174 /* Map text into num, updating the map structure p. */
175 
176 static	void
177 _keyfunc2(char **keyptr, char **lastkey)
178 {
179 	short code_value = KEY_F(11);
180 
181 	for (; *keyptr && keyptr <= lastkey; keyptr++, code_value++) {
182 		p->_sends = *keyptr;
183 		p->_keyval = (short) code_value;
184 		funckey[(unsigned char)*keyptr[0]] |= _KEY;
185 		p++;
186 	}
187 }
188 
189 int
190 setkeymap(void)
191 {
192 	_KEY_MAP	keymap[((sizeof (keycodes) / sizeof (short)) +
193 			    ((KEY_F(63) - KEY_F(11)) + 1))], **key_ptrs;
194 	short		numkeys;
195 	int		numbytes, key_size = cur_term->_ksz;
196 
197 	if (cur_term->internal_keys != NULL)
198 		return (ERR);
199 	p = keymap;
200 	codeptr = keycodes;
201 	funckey = cur_term->funckeystarter;
202 
203 	/* If backspace key sends \b, don't map it. */
204 	if (key_backspace && strcmp(key_backspace, "\b"))
205 		_laddone(key_backspace);
206 	codeptr++;
207 
208 	_keyfunc(&key_catab, &key_dl);
209 
210 	/* If down arrow key sends \n, don't map it. */
211 	if (key_down && strcmp(key_down, "\n"))
212 		_laddone(key_down);
213 	codeptr++;
214 
215 	_keyfunc(&key_eic, &key_il);
216 
217 	/* If left arrow key sends \b, don't map it. */
218 	if (key_left && strcmp(key_left, "\b"))
219 		_laddone(key_left);
220 	codeptr++;
221 
222 	_keyfunc(&key_ll, &key_up);
223 	_keyfunc(&key_a1, &key_c3);
224 	_keyfunc(&key_btab, &key_btab);
225 	_keyfunc(&key_beg, &key_sundo);
226 	_keyfunc2(&key_f11, &key_f63);
227 	_keyfunc(&key_mouse, &key_mouse);
228 
229 	/*
230 	 * malloc returns the address of a list of pointers to
231 	 * (_KEY_MAP *) structures
232 	 */
233 
234 	if ((key_ptrs = (_KEY_MAP **)
235 	    /* LINTED */
236 	    malloc((key_size + (numkeys = (short)(p - keymap))) *
237 	    sizeof (_KEY_MAP *))) == NULL) {
238 		goto out;
239 	}
240 
241 	/*
242 	 * Number of bytes needed is the number of structures times their size
243 	 * malloc room for our array of _KEY_MAP structures
244 	 */
245 
246 	if ((p = (_KEY_MAP *) malloc((unsigned)
247 	    /* LINTED */
248 	    (numbytes = (int)(sizeof (_KEY_MAP) * numkeys)))) == NULL) {
249 		/* Can't do it, free list of pointers, indicate */
250 		/* error upon return. */
251 		free((char *) key_ptrs);
252 out:
253 		term_errno = TERM_BAD_MALLOC;
254 #ifdef	DEBUG
255 		strcpy(term_parm_err, "setkeymap");
256 		termerr();
257 #endif	/* DEBUG */
258 		return (ERR);
259 	}
260 
261 	if (key_size != 0) {
262 		(void) memcpy((char *) &(key_ptrs[numkeys]),
263 		    (char *) cur_term->_keys, (key_size *
264 		    sizeof (_KEY_MAP *)));
265 		free(cur_term->_keys);
266 	}
267 	(void) memcpy((char *) (cur_term->internal_keys = p),
268 	    (char *) keymap, numbytes);
269 	cur_term->_keys = key_ptrs;
270 	cur_term->_ksz += numkeys;
271 	/*
272 	 * Reset _lastkey_ordered to -1 since we put the keys read in
273 	 * from terminfo at the beginning of the keys table.
274 	 */
275 	cur_term->_lastkey_ordered = -1;
276 	cur_term->_lastmacro_ordered += numkeys;
277 	cur_term->_first_macro += numkeys;
278 
279 	/* Initialize our pointers to the structures */
280 	while (numkeys--)
281 		*key_ptrs++ = p++;
282 #ifdef	DEBUG
283 	if (outf)
284 		fprintf(outf, "return key structure %x, ending at %x\n",
285 		    keymap, p);
286 #endif	/* DEBUG */
287 	return (OK);
288 }
289