tty-term.c revision 1.12
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 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: %s@", 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(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(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(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 /* Figure out if we have 256 colours (or more). */ 532 if (tty_term_number(term, TTYC_COLORS) >= 256 || 533 tty_term_has(term, TTYC_RGB)) 534 term->flags |= TERM_256COLOURS; 535 536 /* 537 * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1 538 * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1). 539 * 540 * This is irritating, most notably because it is impossible to write 541 * to the very bottom-right of the screen without scrolling. 542 * 543 * Flag the terminal here and apply some workarounds in other places to 544 * do the best possible. 545 */ 546 if (!tty_term_flag(term, TTYC_XENL)) 547 term->flags |= TERM_EARLYWRAP; 548 549 /* Generate ACS table. If none is present, use nearest ASCII. */ 550 memset(term->acs, 0, sizeof term->acs); 551 if (tty_term_has(term, TTYC_ACSC)) 552 acs = tty_term_string(term, TTYC_ACSC); 553 else 554 acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~."; 555 for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2) 556 term->acs[(u_char) acs[0]][0] = acs[1]; 557 558 /* On terminals with xterm titles (XT), fill in tsl and fsl. */ 559 if (tty_term_flag(term, TTYC_XT) && 560 !tty_term_has(term, TTYC_TSL) && 561 !tty_term_has(term, TTYC_FSL)) { 562 code = &term->codes[TTYC_TSL]; 563 code->value.string = xstrdup("\033]0;"); 564 code->type = TTYCODE_STRING; 565 code = &term->codes[TTYC_FSL]; 566 code->value.string = xstrdup("\007"); 567 code->type = TTYCODE_STRING; 568 } 569 570 /* 571 * On terminals with RGB colour (Tc or RGB), fill in setrgbf and 572 * setrgbb if they are missing. 573 */ 574 if ((tty_term_flag(term, TTYC_TC) || tty_term_flag(term, TTYC_RGB)) && 575 !tty_term_has(term, TTYC_SETRGBF) && 576 !tty_term_has(term, TTYC_SETRGBB)) { 577 code = &term->codes[TTYC_SETRGBF]; 578 code->value.string = xstrdup("\033[38;2;%p1%d;%p2%d;%p3%dm"); 579 code->type = TTYCODE_STRING; 580 code = &term->codes[TTYC_SETRGBB]; 581 code->value.string = xstrdup("\033[48;2;%p1%d;%p2%d;%p3%dm"); 582 code->type = TTYCODE_STRING; 583 } 584 585 /* Log it. */ 586 for (i = 0; i < tty_term_ncodes(); i++) 587 log_debug("%s%s", name, tty_term_describe(term, i)); 588 589 return (term); 590 591error: 592 tty_term_free(term); 593 return (NULL); 594} 595 596void 597tty_term_free(struct tty_term *term) 598{ 599 u_int i; 600 601 if (--term->references != 0) 602 return; 603 604 LIST_REMOVE(term, entry); 605 606 for (i = 0; i < tty_term_ncodes(); i++) { 607 if (term->codes[i].type == TTYCODE_STRING) 608 free(term->codes[i].value.string); 609 } 610 free(term->codes); 611 612 free(term->name); 613 free(term); 614} 615 616int 617tty_term_has(struct tty_term *term, enum tty_code_code code) 618{ 619 return (term->codes[code].type != TTYCODE_NONE); 620} 621 622const char * 623tty_term_string(struct tty_term *term, enum tty_code_code code) 624{ 625 if (!tty_term_has(term, code)) 626 return (""); 627 if (term->codes[code].type != TTYCODE_STRING) 628 fatalx("not a string: %d", code); 629 return (term->codes[code].value.string); 630} 631 632const char * 633tty_term_string1(struct tty_term *term, enum tty_code_code code, int a) 634{ 635 return (tparm(tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0)); 636} 637 638const char * 639tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b) 640{ 641 return (tparm(tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0)); 642} 643 644const char * 645tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, int c) 646{ 647 return (tparm(tty_term_string(term, code), a, b, c, 0, 0, 0, 0, 0, 0)); 648} 649 650const char * 651tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a) 652{ 653 return (tparm((const char *) tty_term_string(term, code), (long)a, 0, 0, 0, 0, 0, 0, 0, 0)); 654} 655 656const char * 657tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a, 658 const void *b) 659{ 660 return (tparm((const char *) tty_term_string(term, code), (long)a, (long)b, 0, 0, 0, 0, 0, 0, 0)); 661} 662 663int 664tty_term_number(struct tty_term *term, enum tty_code_code code) 665{ 666 if (!tty_term_has(term, code)) 667 return (0); 668 if (term->codes[code].type != TTYCODE_NUMBER) 669 fatalx("not a number: %d", code); 670 return (term->codes[code].value.number); 671} 672 673int 674tty_term_flag(struct tty_term *term, enum tty_code_code code) 675{ 676 if (!tty_term_has(term, code)) 677 return (0); 678 if (term->codes[code].type != TTYCODE_FLAG) 679 fatalx("not a flag: %d", code); 680 return (term->codes[code].value.flag); 681} 682 683const char * 684tty_term_describe(struct tty_term *term, enum tty_code_code code) 685{ 686 static char s[256]; 687 char out[128]; 688 689 switch (term->codes[code].type) { 690 case TTYCODE_NONE: 691 xsnprintf(s, sizeof s, "%4u: %s: [missing]", 692 code, tty_term_codes[code].name); 693 break; 694 case TTYCODE_STRING: 695 strnvis(out, sizeof out, term->codes[code].value.string, 696 VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL); 697 xsnprintf(s, sizeof s, "%4u: %s: (string) %s", 698 code, tty_term_codes[code].name, 699 out); 700 break; 701 case TTYCODE_NUMBER: 702 xsnprintf(s, sizeof s, "%4u: %s: (number) %d", 703 code, tty_term_codes[code].name, 704 term->codes[code].value.number); 705 break; 706 case TTYCODE_FLAG: 707 xsnprintf(s, sizeof s, "%4u: %s: (flag) %s", 708 code, tty_term_codes[code].name, 709 term->codes[code].value.flag ? "true" : "false"); 710 break; 711 } 712 return (s); 713} 714