Annotation of embedaddon/tmux/tty-term.c, revision 1.1.1.1
1.1 misho 1: /* $OpenBSD$ */
2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
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:
33: static void tty_term_override(struct tty_term *, const char *);
34: static char *tty_term_strip(const char *);
35:
36: struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
37:
38: enum tty_code_type {
39: TTYCODE_NONE = 0,
40: TTYCODE_STRING,
41: TTYCODE_NUMBER,
42: TTYCODE_FLAG,
43: };
44:
45: struct tty_code {
46: enum tty_code_type type;
47: union {
48: char *string;
49: int number;
50: int flag;
51: } value;
52: };
53:
54: struct tty_term_code_entry {
55: enum tty_code_type type;
56: const char *name;
57: };
58:
59: static 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_CS] = { TTYCODE_STRING, "Cs" },
72: [TTYC_CSR] = { TTYCODE_STRING, "csr" },
73: [TTYC_CUB] = { TTYCODE_STRING, "cub" },
74: [TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
75: [TTYC_CUD] = { TTYCODE_STRING, "cud" },
76: [TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
77: [TTYC_CUF] = { TTYCODE_STRING, "cuf" },
78: [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
79: [TTYC_CUP] = { TTYCODE_STRING, "cup" },
80: [TTYC_CUU] = { TTYCODE_STRING, "cuu" },
81: [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
82: [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
83: [TTYC_DCH] = { TTYCODE_STRING, "dch" },
84: [TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
85: [TTYC_DIM] = { TTYCODE_STRING, "dim" },
86: [TTYC_DL] = { TTYCODE_STRING, "dl" },
87: [TTYC_DL1] = { TTYCODE_STRING, "dl1" },
88: [TTYC_E3] = { TTYCODE_STRING, "E3" },
89: [TTYC_ECH] = { TTYCODE_STRING, "ech" },
90: [TTYC_ED] = { TTYCODE_STRING, "ed" },
91: [TTYC_EL] = { TTYCODE_STRING, "el" },
92: [TTYC_EL1] = { TTYCODE_STRING, "el1" },
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_ICH] = { TTYCODE_STRING, "ich" },
98: [TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
99: [TTYC_IL] = { TTYCODE_STRING, "il" },
100: [TTYC_IL1] = { TTYCODE_STRING, "il1" },
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" },
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_KEND] = { TTYCODE_STRING, "kend" },
122: [TTYC_KEND2] = { TTYCODE_STRING, "kEND" },
123: [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" },
124: [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" },
125: [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" },
126: [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" },
127: [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" },
128: [TTYC_KF1] = { TTYCODE_STRING, "kf1" },
129: [TTYC_KF10] = { TTYCODE_STRING, "kf10" },
130: [TTYC_KF11] = { TTYCODE_STRING, "kf11" },
131: [TTYC_KF12] = { TTYCODE_STRING, "kf12" },
132: [TTYC_KF13] = { TTYCODE_STRING, "kf13" },
133: [TTYC_KF14] = { TTYCODE_STRING, "kf14" },
134: [TTYC_KF15] = { TTYCODE_STRING, "kf15" },
135: [TTYC_KF16] = { TTYCODE_STRING, "kf16" },
136: [TTYC_KF17] = { TTYCODE_STRING, "kf17" },
137: [TTYC_KF18] = { TTYCODE_STRING, "kf18" },
138: [TTYC_KF19] = { TTYCODE_STRING, "kf19" },
139: [TTYC_KF2] = { TTYCODE_STRING, "kf2" },
140: [TTYC_KF20] = { TTYCODE_STRING, "kf20" },
141: [TTYC_KF21] = { TTYCODE_STRING, "kf21" },
142: [TTYC_KF22] = { TTYCODE_STRING, "kf22" },
143: [TTYC_KF23] = { TTYCODE_STRING, "kf23" },
144: [TTYC_KF24] = { TTYCODE_STRING, "kf24" },
145: [TTYC_KF25] = { TTYCODE_STRING, "kf25" },
146: [TTYC_KF26] = { TTYCODE_STRING, "kf26" },
147: [TTYC_KF27] = { TTYCODE_STRING, "kf27" },
148: [TTYC_KF28] = { TTYCODE_STRING, "kf28" },
149: [TTYC_KF29] = { TTYCODE_STRING, "kf29" },
150: [TTYC_KF3] = { TTYCODE_STRING, "kf3" },
151: [TTYC_KF30] = { TTYCODE_STRING, "kf30" },
152: [TTYC_KF31] = { TTYCODE_STRING, "kf31" },
153: [TTYC_KF32] = { TTYCODE_STRING, "kf32" },
154: [TTYC_KF33] = { TTYCODE_STRING, "kf33" },
155: [TTYC_KF34] = { TTYCODE_STRING, "kf34" },
156: [TTYC_KF35] = { TTYCODE_STRING, "kf35" },
157: [TTYC_KF36] = { TTYCODE_STRING, "kf36" },
158: [TTYC_KF37] = { TTYCODE_STRING, "kf37" },
159: [TTYC_KF38] = { TTYCODE_STRING, "kf38" },
160: [TTYC_KF39] = { TTYCODE_STRING, "kf39" },
161: [TTYC_KF4] = { TTYCODE_STRING, "kf4" },
162: [TTYC_KF40] = { TTYCODE_STRING, "kf40" },
163: [TTYC_KF41] = { TTYCODE_STRING, "kf41" },
164: [TTYC_KF42] = { TTYCODE_STRING, "kf42" },
165: [TTYC_KF43] = { TTYCODE_STRING, "kf43" },
166: [TTYC_KF44] = { TTYCODE_STRING, "kf44" },
167: [TTYC_KF45] = { TTYCODE_STRING, "kf45" },
168: [TTYC_KF46] = { TTYCODE_STRING, "kf46" },
169: [TTYC_KF47] = { TTYCODE_STRING, "kf47" },
170: [TTYC_KF48] = { TTYCODE_STRING, "kf48" },
171: [TTYC_KF49] = { TTYCODE_STRING, "kf49" },
172: [TTYC_KF5] = { TTYCODE_STRING, "kf5" },
173: [TTYC_KF50] = { TTYCODE_STRING, "kf50" },
174: [TTYC_KF51] = { TTYCODE_STRING, "kf51" },
175: [TTYC_KF52] = { TTYCODE_STRING, "kf52" },
176: [TTYC_KF53] = { TTYCODE_STRING, "kf53" },
177: [TTYC_KF54] = { TTYCODE_STRING, "kf54" },
178: [TTYC_KF55] = { TTYCODE_STRING, "kf55" },
179: [TTYC_KF56] = { TTYCODE_STRING, "kf56" },
180: [TTYC_KF57] = { TTYCODE_STRING, "kf57" },
181: [TTYC_KF58] = { TTYCODE_STRING, "kf58" },
182: [TTYC_KF59] = { TTYCODE_STRING, "kf59" },
183: [TTYC_KF6] = { TTYCODE_STRING, "kf6" },
184: [TTYC_KF60] = { TTYCODE_STRING, "kf60" },
185: [TTYC_KF61] = { TTYCODE_STRING, "kf61" },
186: [TTYC_KF62] = { TTYCODE_STRING, "kf62" },
187: [TTYC_KF63] = { TTYCODE_STRING, "kf63" },
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_KLFT2] = { TTYCODE_STRING, "kLFT" },
206: [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" },
207: [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" },
208: [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" },
209: [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" },
210: [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" },
211: [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" },
212: [TTYC_KNP] = { TTYCODE_STRING, "knp" },
213: [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" },
214: [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" },
215: [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" },
216: [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" },
217: [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" },
218: [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" },
219: [TTYC_KPP] = { TTYCODE_STRING, "kpp" },
220: [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" },
221: [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" },
222: [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" },
223: [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" },
224: [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" },
225: [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" },
226: [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" },
227: [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" },
228: [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" },
229: [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" },
230: [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" },
231: [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" },
232: [TTYC_KUP2] = { TTYCODE_STRING, "kUP" },
233: [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" },
234: [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" },
235: [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" },
236: [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" },
237: [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" },
238: [TTYC_MS] = { TTYCODE_STRING, "Ms" },
239: [TTYC_OP] = { TTYCODE_STRING, "op" },
240: [TTYC_REV] = { TTYCODE_STRING, "rev" },
241: [TTYC_RI] = { TTYCODE_STRING, "ri" },
242: [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
243: [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
244: [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
245: [TTYC_SE] = { TTYCODE_STRING, "Se" },
246: [TTYC_SETAB] = { TTYCODE_STRING, "setab" },
247: [TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
248: [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
249: [TTYC_SITM] = { TTYCODE_STRING, "sitm" },
250: [TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
251: [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" },
252: [TTYC_SMKX] = { TTYCODE_STRING, "smkx" },
253: [TTYC_SMSO] = { TTYCODE_STRING, "smso" },
254: [TTYC_SMUL] = { TTYCODE_STRING, "smul" },
255: [TTYC_SMXX] = { TTYCODE_STRING, "smxx" },
256: [TTYC_SS] = { TTYCODE_STRING, "Ss" },
257: [TTYC_TC] = { TTYCODE_FLAG, "Tc" },
258: [TTYC_TSL] = { TTYCODE_STRING, "tsl" },
259: [TTYC_VPA] = { TTYCODE_STRING, "vpa" },
260: [TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
261: [TTYC_XT] = { TTYCODE_FLAG, "XT" },
262: };
263:
264: u_int
265: tty_term_ncodes(void)
266: {
267: return (nitems(tty_term_codes));
268: }
269:
270: static char *
271: tty_term_strip(const char *s)
272: {
273: const char *ptr;
274: static char buf[BUFSIZ];
275: size_t len;
276:
277: /* Ignore strings with no padding. */
278: if (strchr(s, '$') == NULL)
279: return (xstrdup(s));
280:
281: len = 0;
282: for (ptr = s; *ptr != '\0'; ptr++) {
283: if (*ptr == '$' && *(ptr + 1) == '<') {
284: while (*ptr != '\0' && *ptr != '>')
285: ptr++;
286: if (*ptr == '>')
287: ptr++;
288: }
289:
290: buf[len++] = *ptr;
291: if (len == (sizeof buf) - 1)
292: break;
293: }
294: buf[len] = '\0';
295:
296: return (xstrdup(buf));
297: }
298:
299: static void
300: tty_term_override(struct tty_term *term, const char *override)
301: {
302: const struct tty_term_code_entry *ent;
303: struct tty_code *code;
304: char *next, *s, *copy, *cp, *value;
305: const char *errstr;
306: u_int i;
307: int n, remove;
308:
309: copy = next = xstrdup(override);
310:
311: s = strsep(&next, ":");
312: if (s == NULL || next == NULL || fnmatch(s, term->name, 0) != 0) {
313: free(copy);
314: return;
315: }
316:
317: while ((s = strsep(&next, ":")) != NULL) {
318: if (*s == '\0')
319: continue;
320: value = NULL;
321:
322: remove = 0;
323: if ((cp = strchr(s, '=')) != NULL) {
324: *cp++ = '\0';
325: value = xstrdup(cp);
326: if (strunvis(value, cp) == -1) {
327: free(value);
328: value = xstrdup(cp);
329: }
330: } else if (s[strlen(s) - 1] == '@') {
331: s[strlen(s) - 1] = '\0';
332: remove = 1;
333: } else
334: value = xstrdup("");
335:
336: if (remove)
337: log_debug("%s override: %s@", term->name, s);
338: else
339: log_debug("%s override: %s=%s", term->name, s, value);
340:
341: for (i = 0; i < tty_term_ncodes(); i++) {
342: ent = &tty_term_codes[i];
343: if (strcmp(s, ent->name) != 0)
344: continue;
345: code = &term->codes[i];
346:
347: if (remove) {
348: code->type = TTYCODE_NONE;
349: continue;
350: }
351: switch (ent->type) {
352: case TTYCODE_NONE:
353: break;
354: case TTYCODE_STRING:
355: if (code->type == TTYCODE_STRING)
356: free(code->value.string);
357: code->value.string = xstrdup(value);
358: code->type = ent->type;
359: break;
360: case TTYCODE_NUMBER:
361: n = strtonum(value, 0, INT_MAX, &errstr);
362: if (errstr != NULL)
363: break;
364: code->value.number = n;
365: code->type = ent->type;
366: break;
367: case TTYCODE_FLAG:
368: code->value.flag = 1;
369: code->type = ent->type;
370: break;
371: }
372: }
373:
374: free(value);
375: }
376: free(s);
377: }
378:
379: struct tty_term *
380: tty_term_find(char *name, int fd, char **cause)
381: {
382: struct tty_term *term;
383: const struct tty_term_code_entry *ent;
384: struct tty_code *code;
385: struct options_entry *o;
386: u_int size, i;
387: int n, error;
388: const char *s, *acs;
389:
390: LIST_FOREACH(term, &tty_terms, entry) {
391: if (strcmp(term->name, name) == 0) {
392: term->references++;
393: return (term);
394: }
395: }
396:
397: log_debug("new term: %s", name);
398: term = xmalloc(sizeof *term);
399: term->name = xstrdup(name);
400: term->references = 1;
401: term->flags = 0;
402: term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes);
403: LIST_INSERT_HEAD(&tty_terms, term, entry);
404:
405: /* Set up curses terminal. */
406: if (setupterm(name, fd, &error) != OK) {
407: switch (error) {
408: case 1:
409: xasprintf(cause, "can't use hardcopy terminal: %s",
410: name);
411: break;
412: case 0:
413: xasprintf(cause, "missing or unsuitable terminal: %s",
414: name);
415: break;
416: case -1:
417: xasprintf(cause, "can't find terminfo database");
418: break;
419: default:
420: xasprintf(cause, "unknown error");
421: break;
422: }
423: goto error;
424: }
425:
426: /* Fill in codes. */
427: for (i = 0; i < tty_term_ncodes(); i++) {
428: ent = &tty_term_codes[i];
429:
430: code = &term->codes[i];
431: code->type = TTYCODE_NONE;
432: switch (ent->type) {
433: case TTYCODE_NONE:
434: break;
435: case TTYCODE_STRING:
436: s = tigetstr((char *) ent->name);
437: if (s == NULL || s == (char *) -1)
438: break;
439: code->type = TTYCODE_STRING;
440: code->value.string = tty_term_strip(s);
441: break;
442: case TTYCODE_NUMBER:
443: n = tigetnum((char *) ent->name);
444: if (n == -1 || n == -2)
445: break;
446: code->type = TTYCODE_NUMBER;
447: code->value.number = n;
448: break;
449: case TTYCODE_FLAG:
450: n = tigetflag((char *) ent->name);
451: if (n == -1)
452: break;
453: code->type = TTYCODE_FLAG;
454: code->value.flag = n;
455: break;
456: }
457: }
458:
459: /* Apply terminal overrides. */
460: o = options_get_only(global_options, "terminal-overrides");
461: if (options_array_size(o, &size) != -1) {
462: for (i = 0; i < size; i++) {
463: s = options_array_get(o, i);
464: if (s != NULL)
465: tty_term_override(term, s);
466: }
467: }
468:
469: /* Delete curses data. */
470: #if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \
471: (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6)
472: del_curterm(cur_term);
473: #endif
474:
475: /* These are always required. */
476: if (!tty_term_has(term, TTYC_CLEAR)) {
477: xasprintf(cause, "terminal does not support clear");
478: goto error;
479: }
480: if (!tty_term_has(term, TTYC_CUP)) {
481: xasprintf(cause, "terminal does not support cup");
482: goto error;
483: }
484:
485: /* These can be emulated so one of the two is required. */
486: if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
487: xasprintf(cause, "terminal does not support cud1 or cud");
488: goto error;
489: }
490:
491: /* Figure out if we have 256. */
492: if (tty_term_number(term, TTYC_COLORS) == 256)
493: term->flags |= TERM_256COLOURS;
494:
495: /*
496: * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
497: * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
498: *
499: * This is irritating, most notably because it is impossible to write
500: * to the very bottom-right of the screen without scrolling.
501: *
502: * Flag the terminal here and apply some workarounds in other places to
503: * do the best possible.
504: */
505: if (!tty_term_flag(term, TTYC_XENL))
506: term->flags |= TERM_EARLYWRAP;
507:
508: /* Generate ACS table. If none is present, use nearest ASCII. */
509: memset(term->acs, 0, sizeof term->acs);
510: if (tty_term_has(term, TTYC_ACSC))
511: acs = tty_term_string(term, TTYC_ACSC);
512: else
513: acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
514: for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
515: term->acs[(u_char) acs[0]][0] = acs[1];
516:
517: /* On terminals with xterm titles (XT), fill in tsl and fsl. */
518: if (tty_term_flag(term, TTYC_XT) &&
519: !tty_term_has(term, TTYC_TSL) &&
520: !tty_term_has(term, TTYC_FSL)) {
521: code = &term->codes[TTYC_TSL];
522: code->value.string = xstrdup("\033]0;");
523: code->type = TTYCODE_STRING;
524: code = &term->codes[TTYC_FSL];
525: code->value.string = xstrdup("\007");
526: code->type = TTYCODE_STRING;
527: }
528:
529: return (term);
530:
531: error:
532: tty_term_free(term);
533: return (NULL);
534: }
535:
536: void
537: tty_term_free(struct tty_term *term)
538: {
539: u_int i;
540:
541: if (--term->references != 0)
542: return;
543:
544: LIST_REMOVE(term, entry);
545:
546: for (i = 0; i < tty_term_ncodes(); i++) {
547: if (term->codes[i].type == TTYCODE_STRING)
548: free(term->codes[i].value.string);
549: }
550: free(term->codes);
551:
552: free(term->name);
553: free(term);
554: }
555:
556: int
557: tty_term_has(struct tty_term *term, enum tty_code_code code)
558: {
559: return (term->codes[code].type != TTYCODE_NONE);
560: }
561:
562: const char *
563: tty_term_string(struct tty_term *term, enum tty_code_code code)
564: {
565: if (!tty_term_has(term, code))
566: return ("");
567: if (term->codes[code].type != TTYCODE_STRING)
568: fatalx("not a string: %d", code);
569: return (term->codes[code].value.string);
570: }
571:
572: const char *
573: tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
574: {
575: return (tparm((char *) tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0));
576: }
577:
578: const char *
579: tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
580: {
581: return (tparm((char *) tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0));
582: }
583:
584: const char *
585: tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
586: {
587: return (tparm((char *) tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0));
588: }
589:
590: const char *
591: tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a,
592: const void *b)
593: {
594: return (tparm((char *) tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0));
595: }
596:
597: int
598: tty_term_number(struct tty_term *term, enum tty_code_code code)
599: {
600: if (!tty_term_has(term, code))
601: return (0);
602: if (term->codes[code].type != TTYCODE_NUMBER)
603: fatalx("not a number: %d", code);
604: return (term->codes[code].value.number);
605: }
606:
607: int
608: tty_term_flag(struct tty_term *term, enum tty_code_code code)
609: {
610: if (!tty_term_has(term, code))
611: return (0);
612: if (term->codes[code].type != TTYCODE_FLAG)
613: fatalx("not a flag: %d", code);
614: return (term->codes[code].value.flag);
615: }
616:
617: const char *
618: tty_term_describe(struct tty_term *term, enum tty_code_code code)
619: {
620: static char s[256];
621: char out[128];
622:
623: switch (term->codes[code].type) {
624: case TTYCODE_NONE:
625: xsnprintf(s, sizeof s, "%4u: %s: [missing]",
626: code, tty_term_codes[code].name);
627: break;
628: case TTYCODE_STRING:
629: strnvis(out, term->codes[code].value.string, sizeof out,
630: VIS_OCTAL|VIS_TAB|VIS_NL);
631: xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
632: code, tty_term_codes[code].name,
633: out);
634: break;
635: case TTYCODE_NUMBER:
636: xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
637: code, tty_term_codes[code].name,
638: term->codes[code].value.number);
639: break;
640: case TTYCODE_FLAG:
641: xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
642: code, tty_term_codes[code].name,
643: term->codes[code].value.flag ? "true" : "false");
644: break;
645: }
646: return (s);
647: }
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