1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2008 Nicholas Marriott <[email protected]>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20
21#if defined(HAVE_CURSES_H)
22#include <curses.h>
23#elif defined(HAVE_NCURSES_H)
24#include <ncurses.h>
25#endif
26#include <fnmatch.h>
27#include <stdlib.h>
28#include <string.h>
29#include <term.h>
30
31#include "tmux.h"
32
33static void tty_term_override(struct tty_term *, const char *);
34static char *tty_term_strip(const char *);
35
36struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
37
38enum tty_code_type {
39 TTYCODE_NONE = 0,
40 TTYCODE_STRING,
41 TTYCODE_NUMBER,
42 TTYCODE_FLAG,
43};
44
45struct tty_code {
46 enum tty_code_type type;
47 union {
48 char *string;
49 int number;
50 int flag;
51 } value;
52};
53
54struct tty_term_code_entry {
55 enum tty_code_type type;
56 const char *name;
57};
58
59static const struct tty_term_code_entry tty_term_codes[] = {
60 [TTYC_ACSC] = { TTYCODE_STRING, "acsc" },
61 [TTYC_AX] = { TTYCODE_FLAG, "AX" },
62 [TTYC_BCE] = { TTYCODE_FLAG, "bce" },
63 [TTYC_BEL] = { TTYCODE_STRING, "bel" },
64 [TTYC_BLINK] = { TTYCODE_STRING, "blink" },
65 [TTYC_BOLD] = { TTYCODE_STRING, "bold" },
66 [TTYC_CIVIS] = { TTYCODE_STRING, "civis" },
67 [TTYC_CLEAR] = { TTYCODE_STRING, "clear" },
68 [TTYC_CNORM] = { TTYCODE_STRING, "cnorm" },
69 [TTYC_COLORS] = { TTYCODE_NUMBER, "colors" },
70 [TTYC_CR] = { TTYCODE_STRING, "Cr" },
71 [TTYC_CSR] = { TTYCODE_STRING, "csr" },
72 [TTYC_CS] = { TTYCODE_STRING, "Cs" },
73 [TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
74 [TTYC_CUB] = { TTYCODE_STRING, "cub" },
75 [TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
76 [TTYC_CUD] = { TTYCODE_STRING, "cud" },
77 [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
78 [TTYC_CUF] = { TTYCODE_STRING, "cuf" },
79 [TTYC_CUP] = { TTYCODE_STRING, "cup" },
80 [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
81 [TTYC_CUU] = { TTYCODE_STRING, "cuu" },
82 [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
83 [TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
84 [TTYC_DCH] = { TTYCODE_STRING, "dch" },
85 [TTYC_DIM] = { TTYCODE_STRING, "dim" },
86 [TTYC_DL1] = { TTYCODE_STRING, "dl1" },
87 [TTYC_DL] = { TTYCODE_STRING, "dl" },
88 [TTYC_E3] = { TTYCODE_STRING, "E3" },
89 [TTYC_ECH] = { TTYCODE_STRING, "ech" },
90 [TTYC_ED] = { TTYCODE_STRING, "ed" },
91 [TTYC_EL1] = { TTYCODE_STRING, "el1" },
92 [TTYC_EL] = { TTYCODE_STRING, "el" },
93 [TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
94 [TTYC_FSL] = { TTYCODE_STRING, "fsl" },
95 [TTYC_HOME] = { TTYCODE_STRING, "home" },
96 [TTYC_HPA] = { TTYCODE_STRING, "hpa" },
97 [TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
98 [TTYC_ICH] = { TTYCODE_STRING, "ich" },
99 [TTYC_IL1] = { TTYCODE_STRING, "il1" },
100 [TTYC_IL] = { TTYCODE_STRING, "il" },
101 [TTYC_INDN] = { TTYCODE_STRING, "indn" },
102 [TTYC_INVIS] = { TTYCODE_STRING, "invis" },
103 [TTYC_KCBT] = { TTYCODE_STRING, "kcbt" },
104 [TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" },
105 [TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" },
106 [TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" },
107 [TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" },
108 [TTYC_KDC2] = { TTYCODE_STRING, "kDC" },
109 [TTYC_KDC3] = { TTYCODE_STRING, "kDC3" },
110 [TTYC_KDC4] = { TTYCODE_STRING, "kDC4" },
111 [TTYC_KDC5] = { TTYCODE_STRING, "kDC5" },
112 [TTYC_KDC6] = { TTYCODE_STRING, "kDC6" },
113 [TTYC_KDC7] = { TTYCODE_STRING, "kDC7" },
114 [TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" },
115 [TTYC_KDN2] = { TTYCODE_STRING, "kDN" }, /* not kDN2 */
116 [TTYC_KDN3] = { TTYCODE_STRING, "kDN3" },
117 [TTYC_KDN4] = { TTYCODE_STRING, "kDN4" },
118 [TTYC_KDN5] = { TTYCODE_STRING, "kDN5" },
119 [TTYC_KDN6] = { TTYCODE_STRING, "kDN6" },
120 [TTYC_KDN7] = { TTYCODE_STRING, "kDN7" },
121 [TTYC_KEND2] = { TTYCODE_STRING, "kEND" },
122 [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" },
123 [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" },
124 [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" },
125 [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" },
126 [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" },
127 [TTYC_KEND] = { TTYCODE_STRING, "kend" },
128 [TTYC_KF10] = { TTYCODE_STRING, "kf10" },
129 [TTYC_KF11] = { TTYCODE_STRING, "kf11" },
130 [TTYC_KF12] = { TTYCODE_STRING, "kf12" },
131 [TTYC_KF13] = { TTYCODE_STRING, "kf13" },
132 [TTYC_KF14] = { TTYCODE_STRING, "kf14" },
133 [TTYC_KF15] = { TTYCODE_STRING, "kf15" },
134 [TTYC_KF16] = { TTYCODE_STRING, "kf16" },
135 [TTYC_KF17] = { TTYCODE_STRING, "kf17" },
136 [TTYC_KF18] = { TTYCODE_STRING, "kf18" },
137 [TTYC_KF19] = { TTYCODE_STRING, "kf19" },
138 [TTYC_KF1] = { TTYCODE_STRING, "kf1" },
139 [TTYC_KF20] = { TTYCODE_STRING, "kf20" },
140 [TTYC_KF21] = { TTYCODE_STRING, "kf21" },
141 [TTYC_KF22] = { TTYCODE_STRING, "kf22" },
142 [TTYC_KF23] = { TTYCODE_STRING, "kf23" },
143 [TTYC_KF24] = { TTYCODE_STRING, "kf24" },
144 [TTYC_KF25] = { TTYCODE_STRING, "kf25" },
145 [TTYC_KF26] = { TTYCODE_STRING, "kf26" },
146 [TTYC_KF27] = { TTYCODE_STRING, "kf27" },
147 [TTYC_KF28] = { TTYCODE_STRING, "kf28" },
148 [TTYC_KF29] = { TTYCODE_STRING, "kf29" },
149 [TTYC_KF2] = { TTYCODE_STRING, "kf2" },
150 [TTYC_KF30] = { TTYCODE_STRING, "kf30" },
151 [TTYC_KF31] = { TTYCODE_STRING, "kf31" },
152 [TTYC_KF32] = { TTYCODE_STRING, "kf32" },
153 [TTYC_KF33] = { TTYCODE_STRING, "kf33" },
154 [TTYC_KF34] = { TTYCODE_STRING, "kf34" },
155 [TTYC_KF35] = { TTYCODE_STRING, "kf35" },
156 [TTYC_KF36] = { TTYCODE_STRING, "kf36" },
157 [TTYC_KF37] = { TTYCODE_STRING, "kf37" },
158 [TTYC_KF38] = { TTYCODE_STRING, "kf38" },
159 [TTYC_KF39] = { TTYCODE_STRING, "kf39" },
160 [TTYC_KF3] = { TTYCODE_STRING, "kf3" },
161 [TTYC_KF40] = { TTYCODE_STRING, "kf40" },
162 [TTYC_KF41] = { TTYCODE_STRING, "kf41" },
163 [TTYC_KF42] = { TTYCODE_STRING, "kf42" },
164 [TTYC_KF43] = { TTYCODE_STRING, "kf43" },
165 [TTYC_KF44] = { TTYCODE_STRING, "kf44" },
166 [TTYC_KF45] = { TTYCODE_STRING, "kf45" },
167 [TTYC_KF46] = { TTYCODE_STRING, "kf46" },
168 [TTYC_KF47] = { TTYCODE_STRING, "kf47" },
169 [TTYC_KF48] = { TTYCODE_STRING, "kf48" },
170 [TTYC_KF49] = { TTYCODE_STRING, "kf49" },
171 [TTYC_KF4] = { TTYCODE_STRING, "kf4" },
172 [TTYC_KF50] = { TTYCODE_STRING, "kf50" },
173 [TTYC_KF51] = { TTYCODE_STRING, "kf51" },
174 [TTYC_KF52] = { TTYCODE_STRING, "kf52" },
175 [TTYC_KF53] = { TTYCODE_STRING, "kf53" },
176 [TTYC_KF54] = { TTYCODE_STRING, "kf54" },
177 [TTYC_KF55] = { TTYCODE_STRING, "kf55" },
178 [TTYC_KF56] = { TTYCODE_STRING, "kf56" },
179 [TTYC_KF57] = { TTYCODE_STRING, "kf57" },
180 [TTYC_KF58] = { TTYCODE_STRING, "kf58" },
181 [TTYC_KF59] = { TTYCODE_STRING, "kf59" },
182 [TTYC_KF5] = { TTYCODE_STRING, "kf5" },
183 [TTYC_KF60] = { TTYCODE_STRING, "kf60" },
184 [TTYC_KF61] = { TTYCODE_STRING, "kf61" },
185 [TTYC_KF62] = { TTYCODE_STRING, "kf62" },
186 [TTYC_KF63] = { TTYCODE_STRING, "kf63" },
187 [TTYC_KF6] = { TTYCODE_STRING, "kf6" },
188 [TTYC_KF7] = { TTYCODE_STRING, "kf7" },
189 [TTYC_KF8] = { TTYCODE_STRING, "kf8" },
190 [TTYC_KF9] = { TTYCODE_STRING, "kf9" },
191 [TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" },
192 [TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" },
193 [TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" },
194 [TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" },
195 [TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" },
196 [TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" },
197 [TTYC_KHOME] = { TTYCODE_STRING, "khome" },
198 [TTYC_KIC2] = { TTYCODE_STRING, "kIC" },
199 [TTYC_KIC3] = { TTYCODE_STRING, "kIC3" },
200 [TTYC_KIC4] = { TTYCODE_STRING, "kIC4" },
201 [TTYC_KIC5] = { TTYCODE_STRING, "kIC5" },
202 [TTYC_KIC6] = { TTYCODE_STRING, "kIC6" },
203 [TTYC_KIC7] = { TTYCODE_STRING, "kIC7" },
204 [TTYC_KICH1] = { TTYCODE_STRING, "kich1" },
205 [TTYC_KIND] = { TTYCODE_STRING, "kind" },
206 [TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" },
207 [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" },
208 [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" },
209 [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" },
210 [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" },
211 [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" },
212 [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" },
213 [TTYC_KNP] = { TTYCODE_STRING, "knp" },
214 [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" },
215 [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" },
216 [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" },
217 [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" },
218 [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" },
219 [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" },
220 [TTYC_KPP] = { TTYCODE_STRING, "kpp" },
221 [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" },
222 [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" },
223 [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" },
224 [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" },
225 [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" },
226 [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" },
227 [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" },
228 [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" },
229 [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" },
230 [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" },
231 [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" },
232 [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" },
233 [TTYC_KRI] = { TTYCODE_STRING, "kri" },
234 [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */
235 [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" },
236 [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" },
237 [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" },
238 [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" },
239 [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" },
240 [TTYC_MS] = { TTYCODE_STRING, "Ms" },
241 [TTYC_OP] = { TTYCODE_STRING, "op" },
242 [TTYC_REV] = { TTYCODE_STRING, "rev" },
243 [TTYC_RGB] = { TTYCODE_FLAG, "RGB" },
244 [TTYC_RI] = { TTYCODE_STRING, "ri" },
245 [TTYC_RIN] = { TTYCODE_STRING, "rin" },
246 [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
247 [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
248 [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
249 [TTYC_SETAB] = { TTYCODE_STRING, "setab" },
250 [TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
251 [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
252 [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" },
253 [TTYC_SETULC] = { TTYCODE_STRING, "Setulc" },
254 [TTYC_SE] = { TTYCODE_STRING, "Se" },
255 [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
256 [TTYC_SITM] = { TTYCODE_STRING, "sitm" },
257 [TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
258 [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" },
259 [TTYC_SMKX] = { TTYCODE_STRING, "smkx" },
260 [TTYC_SMOL] = { TTYCODE_STRING, "Smol" },
261 [TTYC_SMSO] = { TTYCODE_STRING, "smso" },
262 [TTYC_SMULX] = { TTYCODE_STRING, "Smulx" },
263 [TTYC_SMUL] = { TTYCODE_STRING, "smul" },
264 [TTYC_SMXX] = { TTYCODE_STRING, "smxx" },
265 [TTYC_SS] = { TTYCODE_STRING, "Ss" },
266 [TTYC_TC] = { TTYCODE_FLAG, "Tc" },
267 [TTYC_TSL] = { TTYCODE_STRING, "tsl" },
268 [TTYC_U8] = { TTYCODE_NUMBER, "U8" },
269 [TTYC_VPA] = { TTYCODE_STRING, "vpa" },
270 [TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
271 [TTYC_XT] = { TTYCODE_FLAG, "XT" },
272};
273
274u_int
275tty_term_ncodes(void)
276{
277 return (nitems(tty_term_codes));
278}
279
280static char *
281tty_term_strip(const char *s)
282{
283 const char *ptr;
284 static char buf[8192];
285 size_t len;
286
287 /* Ignore strings with no padding. */
288 if (strchr(s, '$') == NULL)
289 return (xstrdup(s));
290
291 len = 0;
292 for (ptr = s; *ptr != '\0'; ptr++) {
293 if (*ptr == '$' && *(ptr + 1) == '<') {
294 while (*ptr != '\0' && *ptr != '>')
295 ptr++;
296 if (*ptr == '>')
297 ptr++;
298 }
299
300 buf[len++] = *ptr;
301 if (len == (sizeof buf) - 1)
302 break;
303 }
304 buf[len] = '\0';
305
306 return (xstrdup(buf));
307}
308
309static char *
310tty_term_override_next(const char *s, size_t *offset)
311{
312 static char value[8192];
313 size_t n = 0, at = *offset;
314
315 if (s[at] == '\0')
316 return (NULL);
317
318 while (s[at] != '\0') {
319 if (s[at] == ':') {
320 if (s[at + 1] == ':') {
321 value[n++] = ':';
322 at += 2;
323 } else
324 break;
325 } else {
326 value[n++] = s[at];
327 at++;
328 }
329 if (n == (sizeof value) - 1)
330 return (NULL);
331 }
332 if (s[at] != '\0')
333 *offset = at + 1;
334 else
335 *offset = at;
336 value[n] = '\0';
337 return (value);
338}
339
340static void
341tty_term_override(struct tty_term *term, const char *override)
342{
343 const struct tty_term_code_entry *ent;
344 struct tty_code *code;
345 size_t offset = 0;
346 char *cp, *value, *s;
347 const char *errstr;
348 u_int i;
349 int n, remove;
350
351 s = tty_term_override_next(override, &offset);
352 if (s == NULL || fnmatch(s, term->name, 0) != 0)
353 return;
354
355 while ((s = tty_term_override_next(override, &offset)) != NULL) {
356 if (*s == '\0')
357 continue;
358 value = NULL;
359
360 remove = 0;
361 if ((cp = strchr(s, '=')) != NULL) {
362 *cp++ = '\0';
363 value = xstrdup(cp);
364 if (strunvis(value, cp) == -1) {
365 free(value);
366 value = xstrdup(cp);
367 }
368 } else if (s[strlen(s) - 1] == '@') {
369 s[strlen(s) - 1] = '\0';
370 remove = 1;
371 } else
372 value = xstrdup("");
373
374 if (remove)
375 log_debug("%s override: %[email protected]", term->name, s);
376 else if (*value == '\0')
377 log_debug("%s override: %s", term->name, s);
378 else
379 log_debug("%s override: %s=%s", term->name, s, value);
380
381 for (i = 0; i < tty_term_ncodes(); i++) {
382 ent = &tty_term_codes[i];
383 if (strcmp(s, ent->name) != 0)
384 continue;
385 code = &term->codes[i];
386
387 if (remove) {
388 code->type = TTYCODE_NONE;
389 continue;
390 }
391 switch (ent->type) {
392 case TTYCODE_NONE:
393 break;
394 case TTYCODE_STRING:
395 if (code->type == TTYCODE_STRING)
396 free(code->value.string);
397 code->value.string = xstrdup(value);
398 code->type = ent->type;
399 break;
400 case TTYCODE_NUMBER:
401 n = strtonum(value, 0, INT_MAX, &errstr);
402 if (errstr != NULL)
403 break;
404 code->value.number = n;
405 code->type = ent->type;
406 break;
407 case TTYCODE_FLAG:
408 code->value.flag = 1;
409 code->type = ent->type;
410 break;
411 }
412 }
413
414 free(value);
415 }
416}
417
418struct tty_term *
419tty_term_find(char *name, int fd, char **cause)
420{
421 struct tty_term *term;
422 const struct tty_term_code_entry *ent;
423 struct tty_code *code;
424 struct options_entry *o;
425 struct options_array_item *a;
426 union options_value *ov;
427 u_int i;
428 int n, error;
429 const char *s, *acs;
430
431 LIST_FOREACH(term, &tty_terms, entry) {
432 if (strcmp(term->name, name) == 0) {
433 term->references++;
434 return (term);
435 }
436 }
437 log_debug("new term: %s", name);
438
439 term = xmalloc(sizeof *term);
440 term->name = xstrdup(name);
441 term->references = 1;
442 term->flags = 0;
443 term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes);
444 LIST_INSERT_HEAD(&tty_terms, term, entry);
445
446 /* Set up curses terminal. */
447 if (setupterm(name, fd, &error) != OK) {
448 switch (error) {
449 case 1:
450 xasprintf(cause, "can't use hardcopy terminal: %s",
451 name);
452 break;
453 case 0:
454 xasprintf(cause, "missing or unsuitable terminal: %s",
455 name);
456 break;
457 case -1:
458 xasprintf(cause, "can't find terminfo database");
459 break;
460 default:
461 xasprintf(cause, "unknown error");
462 break;
463 }
464 goto error;
465 }
466
467 /* Fill in codes. */
468 for (i = 0; i < tty_term_ncodes(); i++) {
469 ent = &tty_term_codes[i];
470
471 code = &term->codes[i];
472 code->type = TTYCODE_NONE;
473 switch (ent->type) {
474 case TTYCODE_NONE:
475 break;
476 case TTYCODE_STRING:
477 s = tigetstr((char *) ent->name);
478 if (s == NULL || s == (char *) -1)
479 break;
480 code->type = TTYCODE_STRING;
481 code->value.string = tty_term_strip(s);
482 break;
483 case TTYCODE_NUMBER:
484 n = tigetnum((char *) ent->name);
485 if (n == -1 || n == -2)
486 break;
487 code->type = TTYCODE_NUMBER;
488 code->value.number = n;
489 break;
490 case TTYCODE_FLAG:
491 n = tigetflag((char *) ent->name);
492 if (n == -1)
493 break;
494 code->type = TTYCODE_FLAG;
495 code->value.flag = n;
496 break;
497 }
498 }
499
500 /* Apply terminal overrides. */
501 o = options_get_only(global_options, "terminal-overrides");
502 a = options_array_first(o);
503 while (a != NULL) {
504 ov = options_array_item_value(a);
505 tty_term_override(term, ov->string);
506 a = options_array_next(a);
507 }
508
509 /* Delete curses data. */
510#if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \
511 (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6)
512 del_curterm(cur_term);
513#endif
514
515 /* These are always required. */
516 if (!tty_term_has(term, TTYC_CLEAR)) {
517 xasprintf(cause, "terminal does not support clear");
518 goto error;
519 }
520 if (!tty_term_has(term, TTYC_CUP)) {
521 xasprintf(cause, "terminal does not support cup");
522 goto error;
523 }
524
525 /* These can be emulated so one of the two is required. */
526 if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
527 xasprintf(cause, "terminal does not support cud1 or cud");
528 goto error;
529 }
530
531 /* Set flag if terminal has 256 colours. */
532 if (tty_term_number(term, TTYC_COLORS) >= 256)
533 term->flags |= TERM_256COLOURS;
534
535 /* Set flag if terminal has RGB colours. */
536 if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) ||
537 (tty_term_has(term, TTYC_SETRGBF) &&
538 tty_term_has(term, TTYC_SETRGBB)))
539 term->flags |= TERM_RGBCOLOURS;
540
541 /*
542 * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
543 * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
544 *
545 * This is irritating, most notably because it is impossible to write
546 * to the very bottom-right of the screen without scrolling.
547 *
548 * Flag the terminal here and apply some workarounds in other places to
549 * do the best possible.
550 */
551 if (!tty_term_flag(term, TTYC_XENL))
552 term->flags |= TERM_NOXENL;
553
554 /* Generate ACS table. If none is present, use nearest ASCII. */
555 memset(term->acs, 0, sizeof term->acs);
556 if (tty_term_has(term, TTYC_ACSC))
557 acs = tty_term_string(term, TTYC_ACSC);
558 else
559 acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
560 for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
561 term->acs[(u_char) acs[0]][0] = acs[1];
562
563 /* On terminals with xterm titles (XT), fill in tsl and fsl. */
564 if (tty_term_flag(term, TTYC_XT) &&
565 !tty_term_has(term, TTYC_TSL) &&
566 !tty_term_has(term, TTYC_FSL)) {
567 code = &term->codes[TTYC_TSL];
568 code->value.string = xstrdup("\033]0;");
569 code->type = TTYCODE_STRING;
570 code = &term->codes[TTYC_FSL];
571 code->value.string = xstrdup("\007");
572 code->type = TTYCODE_STRING;
573 }
574
575 /* Log the capabilities. */
576 for (i = 0; i < tty_term_ncodes(); i++)
577 log_debug("%s%s", name, tty_term_describe(term, i));
578
579 return (term);
580
581error:
582 tty_term_free(term);
583 return (NULL);
584}
585
586void
587tty_term_free(struct tty_term *term)
588{
589 u_int i;
590
591 if (--term->references != 0)
592 return;
593
594 LIST_REMOVE(term, entry);
595
596 for (i = 0; i < tty_term_ncodes(); i++) {
597 if (term->codes[i].type == TTYCODE_STRING)
598 free(term->codes[i].value.string);
599 }
600 free(term->codes);
601
602 free(term->name);
603 free(term);
604}
605
606int
607tty_term_has(struct tty_term *term, enum tty_code_code code)
608{
609 return (term->codes[code].type != TTYCODE_NONE);
610}
611
612const char *
613tty_term_string(struct tty_term *term, enum tty_code_code code)
614{
615 if (!tty_term_has(term, code))
616 return ("");
617 if (term->codes[code].type != TTYCODE_STRING)
618 fatalx("not a string: %d", code);
619 return (term->codes[code].value.string);
620}
621
622const char *
623tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
624{
625 return (tparm((char *) tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0));
626}
627
628const char *
629tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
630{
631 return (tparm((char *) tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0));
632}
633
634const char *
635tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b,
636 int c)
637{
638 return (tparm((char *) tty_term_string(term, code), a, b, c, 0, 0, 0, 0, 0, 0));
639}
640
641const char *
642tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
643{
644 return (tparm((char *) tty_term_string(term, code), (long)a, 0, 0, 0, 0, 0, 0, 0, 0));
645}
646
647const char *
648tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a,
649 const void *b)
650{
651 return (tparm((char *) tty_term_string(term, code), (long)a, (long)b, 0, 0, 0, 0, 0, 0, 0));
652}
653
654int
655tty_term_number(struct tty_term *term, enum tty_code_code code)
656{
657 if (!tty_term_has(term, code))
658 return (0);
659 if (term->codes[code].type != TTYCODE_NUMBER)
660 fatalx("not a number: %d", code);
661 return (term->codes[code].value.number);
662}
663
664int
665tty_term_flag(struct tty_term *term, enum tty_code_code code)
666{
667 if (!tty_term_has(term, code))
668 return (0);
669 if (term->codes[code].type != TTYCODE_FLAG)
670 fatalx("not a flag: %d", code);
671 return (term->codes[code].value.flag);
672}
673
674const char *
675tty_term_describe(struct tty_term *term, enum tty_code_code code)
676{
677 static char s[256];
678 char out[128];
679
680 switch (term->codes[code].type) {
681 case TTYCODE_NONE:
682 xsnprintf(s, sizeof s, "%4u: %s: [missing]",
683 code, tty_term_codes[code].name);
684 break;
685 case TTYCODE_STRING:
686 strnvis(out, term->codes[code].value.string, sizeof out,
687 VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
688 xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
689 code, tty_term_codes[code].name,
690 out);
691 break;
692 case TTYCODE_NUMBER:
693 xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
694 code, tty_term_codes[code].name,
695 term->codes[code].value.number);
696 break;
697 case TTYCODE_FLAG:
698 xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
699 code, tty_term_codes[code].name,
700 term->codes[code].value.flag ? "true" : "false");
701 break;
702 }
703 return (s);
704}
705