tty-term.c revision 1.15
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 char *tty_term_strip(const char *); 34 35struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms); 36 37enum tty_code_type { 38 TTYCODE_NONE = 0, 39 TTYCODE_STRING, 40 TTYCODE_NUMBER, 41 TTYCODE_FLAG, 42}; 43 44struct tty_code { 45 enum tty_code_type type; 46 union { 47 char *string; 48 int number; 49 int flag; 50 } value; 51}; 52 53struct tty_term_code_entry { 54 enum tty_code_type type; 55 const char *name; 56}; 57 58static const struct tty_term_code_entry tty_term_codes[] = { 59 [TTYC_ACSC] = { TTYCODE_STRING, "acsc" }, 60 [TTYC_AM] = { TTYCODE_FLAG, "am" }, 61 [TTYC_AX] = { TTYCODE_FLAG, "AX" }, 62 [TTYC_BCE] = { TTYCODE_FLAG, "bce" }, 63 [TTYC_BEL] = { TTYCODE_STRING, "bel" }, 64 [TTYC_BIDI] = { TTYCODE_STRING, "Bidi" }, 65 [TTYC_BLINK] = { TTYCODE_STRING, "blink" }, 66 [TTYC_BOLD] = { TTYCODE_STRING, "bold" }, 67 [TTYC_CIVIS] = { TTYCODE_STRING, "civis" }, 68 [TTYC_CLEAR] = { TTYCODE_STRING, "clear" }, 69 [TTYC_CLMG] = { TTYCODE_STRING, "Clmg" }, 70 [TTYC_CMG] = { TTYCODE_STRING, "Cmg" }, 71 [TTYC_CNORM] = { TTYCODE_STRING, "cnorm" }, 72 [TTYC_COLORS] = { TTYCODE_NUMBER, "colors" }, 73 [TTYC_CR] = { TTYCODE_STRING, "Cr" }, 74 [TTYC_CSR] = { TTYCODE_STRING, "csr" }, 75 [TTYC_CS] = { TTYCODE_STRING, "Cs" }, 76 [TTYC_CUB1] = { TTYCODE_STRING, "cub1" }, 77 [TTYC_CUB] = { TTYCODE_STRING, "cub" }, 78 [TTYC_CUD1] = { TTYCODE_STRING, "cud1" }, 79 [TTYC_CUD] = { TTYCODE_STRING, "cud" }, 80 [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" }, 81 [TTYC_CUF] = { TTYCODE_STRING, "cuf" }, 82 [TTYC_CUP] = { TTYCODE_STRING, "cup" }, 83 [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" }, 84 [TTYC_CUU] = { TTYCODE_STRING, "cuu" }, 85 [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" }, 86 [TTYC_DCH1] = { TTYCODE_STRING, "dch1" }, 87 [TTYC_DCH] = { TTYCODE_STRING, "dch" }, 88 [TTYC_DIM] = { TTYCODE_STRING, "dim" }, 89 [TTYC_DL1] = { TTYCODE_STRING, "dl1" }, 90 [TTYC_DL] = { TTYCODE_STRING, "dl" }, 91 [TTYC_DSEKS] = { TTYCODE_STRING, "Dseks" }, 92 [TTYC_DSFCS] = { TTYCODE_STRING, "Dsfcs" }, 93 [TTYC_DSBP] = { TTYCODE_STRING, "Dsbp" }, 94 [TTYC_DSMG] = { TTYCODE_STRING, "Dsmg" }, 95 [TTYC_E3] = { TTYCODE_STRING, "E3" }, 96 [TTYC_ECH] = { TTYCODE_STRING, "ech" }, 97 [TTYC_ED] = { TTYCODE_STRING, "ed" }, 98 [TTYC_EL1] = { TTYCODE_STRING, "el1" }, 99 [TTYC_EL] = { TTYCODE_STRING, "el" }, 100 [TTYC_ENACS] = { TTYCODE_STRING, "enacs" }, 101 [TTYC_ENBP] = { TTYCODE_STRING, "Enbp" }, 102 [TTYC_ENEKS] = { TTYCODE_STRING, "Eneks" }, 103 [TTYC_ENFCS] = { TTYCODE_STRING, "Enfcs" }, 104 [TTYC_ENMG] = { TTYCODE_STRING, "Enmg" }, 105 [TTYC_FSL] = { TTYCODE_STRING, "fsl" }, 106 [TTYC_HOME] = { TTYCODE_STRING, "home" }, 107 [TTYC_HPA] = { TTYCODE_STRING, "hpa" }, 108 [TTYC_ICH1] = { TTYCODE_STRING, "ich1" }, 109 [TTYC_ICH] = { TTYCODE_STRING, "ich" }, 110 [TTYC_IL1] = { TTYCODE_STRING, "il1" }, 111 [TTYC_IL] = { TTYCODE_STRING, "il" }, 112 [TTYC_INDN] = { TTYCODE_STRING, "indn" }, 113 [TTYC_INVIS] = { TTYCODE_STRING, "invis" }, 114 [TTYC_KCBT] = { TTYCODE_STRING, "kcbt" }, 115 [TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" }, 116 [TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" }, 117 [TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" }, 118 [TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" }, 119 [TTYC_KDC2] = { TTYCODE_STRING, "kDC" }, 120 [TTYC_KDC3] = { TTYCODE_STRING, "kDC3" }, 121 [TTYC_KDC4] = { TTYCODE_STRING, "kDC4" }, 122 [TTYC_KDC5] = { TTYCODE_STRING, "kDC5" }, 123 [TTYC_KDC6] = { TTYCODE_STRING, "kDC6" }, 124 [TTYC_KDC7] = { TTYCODE_STRING, "kDC7" }, 125 [TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" }, 126 [TTYC_KDN2] = { TTYCODE_STRING, "kDN" }, /* not kDN2 */ 127 [TTYC_KDN3] = { TTYCODE_STRING, "kDN3" }, 128 [TTYC_KDN4] = { TTYCODE_STRING, "kDN4" }, 129 [TTYC_KDN5] = { TTYCODE_STRING, "kDN5" }, 130 [TTYC_KDN6] = { TTYCODE_STRING, "kDN6" }, 131 [TTYC_KDN7] = { TTYCODE_STRING, "kDN7" }, 132 [TTYC_KEND2] = { TTYCODE_STRING, "kEND" }, 133 [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" }, 134 [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" }, 135 [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" }, 136 [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" }, 137 [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" }, 138 [TTYC_KEND] = { TTYCODE_STRING, "kend" }, 139 [TTYC_KF10] = { TTYCODE_STRING, "kf10" }, 140 [TTYC_KF11] = { TTYCODE_STRING, "kf11" }, 141 [TTYC_KF12] = { TTYCODE_STRING, "kf12" }, 142 [TTYC_KF13] = { TTYCODE_STRING, "kf13" }, 143 [TTYC_KF14] = { TTYCODE_STRING, "kf14" }, 144 [TTYC_KF15] = { TTYCODE_STRING, "kf15" }, 145 [TTYC_KF16] = { TTYCODE_STRING, "kf16" }, 146 [TTYC_KF17] = { TTYCODE_STRING, "kf17" }, 147 [TTYC_KF18] = { TTYCODE_STRING, "kf18" }, 148 [TTYC_KF19] = { TTYCODE_STRING, "kf19" }, 149 [TTYC_KF1] = { TTYCODE_STRING, "kf1" }, 150 [TTYC_KF20] = { TTYCODE_STRING, "kf20" }, 151 [TTYC_KF21] = { TTYCODE_STRING, "kf21" }, 152 [TTYC_KF22] = { TTYCODE_STRING, "kf22" }, 153 [TTYC_KF23] = { TTYCODE_STRING, "kf23" }, 154 [TTYC_KF24] = { TTYCODE_STRING, "kf24" }, 155 [TTYC_KF25] = { TTYCODE_STRING, "kf25" }, 156 [TTYC_KF26] = { TTYCODE_STRING, "kf26" }, 157 [TTYC_KF27] = { TTYCODE_STRING, "kf27" }, 158 [TTYC_KF28] = { TTYCODE_STRING, "kf28" }, 159 [TTYC_KF29] = { TTYCODE_STRING, "kf29" }, 160 [TTYC_KF2] = { TTYCODE_STRING, "kf2" }, 161 [TTYC_KF30] = { TTYCODE_STRING, "kf30" }, 162 [TTYC_KF31] = { TTYCODE_STRING, "kf31" }, 163 [TTYC_KF32] = { TTYCODE_STRING, "kf32" }, 164 [TTYC_KF33] = { TTYCODE_STRING, "kf33" }, 165 [TTYC_KF34] = { TTYCODE_STRING, "kf34" }, 166 [TTYC_KF35] = { TTYCODE_STRING, "kf35" }, 167 [TTYC_KF36] = { TTYCODE_STRING, "kf36" }, 168 [TTYC_KF37] = { TTYCODE_STRING, "kf37" }, 169 [TTYC_KF38] = { TTYCODE_STRING, "kf38" }, 170 [TTYC_KF39] = { TTYCODE_STRING, "kf39" }, 171 [TTYC_KF3] = { TTYCODE_STRING, "kf3" }, 172 [TTYC_KF40] = { TTYCODE_STRING, "kf40" }, 173 [TTYC_KF41] = { TTYCODE_STRING, "kf41" }, 174 [TTYC_KF42] = { TTYCODE_STRING, "kf42" }, 175 [TTYC_KF43] = { TTYCODE_STRING, "kf43" }, 176 [TTYC_KF44] = { TTYCODE_STRING, "kf44" }, 177 [TTYC_KF45] = { TTYCODE_STRING, "kf45" }, 178 [TTYC_KF46] = { TTYCODE_STRING, "kf46" }, 179 [TTYC_KF47] = { TTYCODE_STRING, "kf47" }, 180 [TTYC_KF48] = { TTYCODE_STRING, "kf48" }, 181 [TTYC_KF49] = { TTYCODE_STRING, "kf49" }, 182 [TTYC_KF4] = { TTYCODE_STRING, "kf4" }, 183 [TTYC_KF50] = { TTYCODE_STRING, "kf50" }, 184 [TTYC_KF51] = { TTYCODE_STRING, "kf51" }, 185 [TTYC_KF52] = { TTYCODE_STRING, "kf52" }, 186 [TTYC_KF53] = { TTYCODE_STRING, "kf53" }, 187 [TTYC_KF54] = { TTYCODE_STRING, "kf54" }, 188 [TTYC_KF55] = { TTYCODE_STRING, "kf55" }, 189 [TTYC_KF56] = { TTYCODE_STRING, "kf56" }, 190 [TTYC_KF57] = { TTYCODE_STRING, "kf57" }, 191 [TTYC_KF58] = { TTYCODE_STRING, "kf58" }, 192 [TTYC_KF59] = { TTYCODE_STRING, "kf59" }, 193 [TTYC_KF5] = { TTYCODE_STRING, "kf5" }, 194 [TTYC_KF60] = { TTYCODE_STRING, "kf60" }, 195 [TTYC_KF61] = { TTYCODE_STRING, "kf61" }, 196 [TTYC_KF62] = { TTYCODE_STRING, "kf62" }, 197 [TTYC_KF63] = { TTYCODE_STRING, "kf63" }, 198 [TTYC_KF6] = { TTYCODE_STRING, "kf6" }, 199 [TTYC_KF7] = { TTYCODE_STRING, "kf7" }, 200 [TTYC_KF8] = { TTYCODE_STRING, "kf8" }, 201 [TTYC_KF9] = { TTYCODE_STRING, "kf9" }, 202 [TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" }, 203 [TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" }, 204 [TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" }, 205 [TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" }, 206 [TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" }, 207 [TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" }, 208 [TTYC_KHOME] = { TTYCODE_STRING, "khome" }, 209 [TTYC_KIC2] = { TTYCODE_STRING, "kIC" }, 210 [TTYC_KIC3] = { TTYCODE_STRING, "kIC3" }, 211 [TTYC_KIC4] = { TTYCODE_STRING, "kIC4" }, 212 [TTYC_KIC5] = { TTYCODE_STRING, "kIC5" }, 213 [TTYC_KIC6] = { TTYCODE_STRING, "kIC6" }, 214 [TTYC_KIC7] = { TTYCODE_STRING, "kIC7" }, 215 [TTYC_KICH1] = { TTYCODE_STRING, "kich1" }, 216 [TTYC_KIND] = { TTYCODE_STRING, "kind" }, 217 [TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" }, 218 [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" }, 219 [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" }, 220 [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" }, 221 [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" }, 222 [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" }, 223 [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" }, 224 [TTYC_KNP] = { TTYCODE_STRING, "knp" }, 225 [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" }, 226 [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" }, 227 [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" }, 228 [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" }, 229 [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" }, 230 [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" }, 231 [TTYC_KPP] = { TTYCODE_STRING, "kpp" }, 232 [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" }, 233 [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" }, 234 [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" }, 235 [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" }, 236 [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" }, 237 [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" }, 238 [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" }, 239 [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" }, 240 [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" }, 241 [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" }, 242 [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" }, 243 [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" }, 244 [TTYC_KRI] = { TTYCODE_STRING, "kri" }, 245 [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */ 246 [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" }, 247 [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" }, 248 [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" }, 249 [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" }, 250 [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" }, 251 [TTYC_MS] = { TTYCODE_STRING, "Ms" }, 252 [TTYC_OL] = { TTYCODE_STRING, "ol" }, 253 [TTYC_OP] = { TTYCODE_STRING, "op" }, 254 [TTYC_RECT] = { TTYCODE_STRING, "Rect" }, 255 [TTYC_REV] = { TTYCODE_STRING, "rev" }, 256 [TTYC_RGB] = { TTYCODE_FLAG, "RGB" }, 257 [TTYC_RIN] = { TTYCODE_STRING, "rin" }, 258 [TTYC_RI] = { TTYCODE_STRING, "ri" }, 259 [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" }, 260 [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" }, 261 [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" }, 262 [TTYC_SETAB] = { TTYCODE_STRING, "setab" }, 263 [TTYC_SETAF] = { TTYCODE_STRING, "setaf" }, 264 [TTYC_SETAL] = { TTYCODE_STRING, "setal" }, 265 [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" }, 266 [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" }, 267 [TTYC_SETULC] = { TTYCODE_STRING, "Setulc" }, 268 [TTYC_SE] = { TTYCODE_STRING, "Se" }, 269 [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" }, 270 [TTYC_SITM] = { TTYCODE_STRING, "sitm" }, 271 [TTYC_SMACS] = { TTYCODE_STRING, "smacs" }, 272 [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" }, 273 [TTYC_SMKX] = { TTYCODE_STRING, "smkx" }, 274 [TTYC_SMOL] = { TTYCODE_STRING, "Smol" }, 275 [TTYC_SMSO] = { TTYCODE_STRING, "smso" }, 276 [TTYC_SMULX] = { TTYCODE_STRING, "Smulx" }, 277 [TTYC_SMUL] = { TTYCODE_STRING, "smul" }, 278 [TTYC_SMXX] = { TTYCODE_STRING, "smxx" }, 279 [TTYC_SS] = { TTYCODE_STRING, "Ss" }, 280 [TTYC_SYNC] = { TTYCODE_STRING, "Sync" }, 281 [TTYC_TC] = { TTYCODE_FLAG, "Tc" }, 282 [TTYC_TSL] = { TTYCODE_STRING, "tsl" }, 283 [TTYC_U8] = { TTYCODE_NUMBER, "U8" }, 284 [TTYC_VPA] = { TTYCODE_STRING, "vpa" }, 285 [TTYC_XT] = { TTYCODE_FLAG, "XT" } 286}; 287 288u_int 289tty_term_ncodes(void) 290{ 291 return (nitems(tty_term_codes)); 292} 293 294static char * 295tty_term_strip(const char *s) 296{ 297 const char *ptr; 298 static char buf[8192]; 299 size_t len; 300 301 /* Ignore strings with no padding. */ 302 if (strchr(s, '$') == NULL) 303 return (xstrdup(s)); 304 305 len = 0; 306 for (ptr = s; *ptr != '\0'; ptr++) { 307 if (*ptr == '$' && *(ptr + 1) == '<') { 308 while (*ptr != '\0' && *ptr != '>') 309 ptr++; 310 if (*ptr == '>') 311 ptr++; 312 if (*ptr == '\0') 313 break; 314 } 315 316 buf[len++] = *ptr; 317 if (len == (sizeof buf) - 1) 318 break; 319 } 320 buf[len] = '\0'; 321 322 return (xstrdup(buf)); 323} 324 325static char * 326tty_term_override_next(const char *s, size_t *offset) 327{ 328 static char value[8192]; 329 size_t n = 0, at = *offset; 330 331 if (s[at] == '\0') 332 return (NULL); 333 334 while (s[at] != '\0') { 335 if (s[at] == ':') { 336 if (s[at + 1] == ':') { 337 value[n++] = ':'; 338 at += 2; 339 } else 340 break; 341 } else { 342 value[n++] = s[at]; 343 at++; 344 } 345 if (n == (sizeof value) - 1) 346 return (NULL); 347 } 348 if (s[at] != '\0') 349 *offset = at + 1; 350 else 351 *offset = at; 352 value[n] = '\0'; 353 return (value); 354} 355 356void 357tty_term_apply(struct tty_term *term, const char *capabilities, int quiet) 358{ 359 const struct tty_term_code_entry *ent; 360 struct tty_code *code; 361 size_t offset = 0; 362 char *cp, *value, *s; 363 const char *errstr, *name = term->name; 364 u_int i; 365 int n, remove; 366 367 while ((s = tty_term_override_next(capabilities, &offset)) != NULL) { 368 if (*s == '\0') 369 continue; 370 value = NULL; 371 372 remove = 0; 373 if ((cp = strchr(s, '=')) != NULL) { 374 *cp++ = '\0'; 375 value = xstrdup(cp); 376 if (strunvis(value, cp) == -1) { 377 free(value); 378 value = xstrdup(cp); 379 } 380 } else if (s[strlen(s) - 1] == '@') { 381 s[strlen(s) - 1] = '\0'; 382 remove = 1; 383 } else 384 value = xstrdup(""); 385 386 if (!quiet) { 387 if (remove) 388 log_debug("%s override: %s@", name, s); 389 else if (*value == '\0') 390 log_debug("%s override: %s", name, s); 391 else 392 log_debug("%s override: %s=%s", name, s, value); 393 } 394 395 for (i = 0; i < tty_term_ncodes(); i++) { 396 ent = &tty_term_codes[i]; 397 if (strcmp(s, ent->name) != 0) 398 continue; 399 code = &term->codes[i]; 400 401 if (remove) { 402 code->type = TTYCODE_NONE; 403 continue; 404 } 405 switch (ent->type) { 406 case TTYCODE_NONE: 407 break; 408 case TTYCODE_STRING: 409 if (code->type == TTYCODE_STRING) 410 free(code->value.string); 411 code->value.string = xstrdup(value); 412 code->type = ent->type; 413 break; 414 case TTYCODE_NUMBER: 415 n = strtonum(value, 0, INT_MAX, &errstr); 416 if (errstr != NULL) 417 break; 418 code->value.number = n; 419 code->type = ent->type; 420 break; 421 case TTYCODE_FLAG: 422 code->value.flag = 1; 423 code->type = ent->type; 424 break; 425 } 426 } 427 428 free(value); 429 } 430} 431 432void 433tty_term_apply_overrides(struct tty_term *term) 434{ 435 struct options_entry *o; 436 struct options_array_item *a; 437 union options_value *ov; 438 const char *s, *acs; 439 size_t offset; 440 char *first; 441 442 /* Update capabilities from the option. */ 443 o = options_get_only(global_options, "terminal-overrides"); 444 a = options_array_first(o); 445 while (a != NULL) { 446 ov = options_array_item_value(a); 447 s = ov->string; 448 449 offset = 0; 450 first = tty_term_override_next(s, &offset); 451 if (first != NULL && fnmatch(first, term->name, 0) == 0) 452 tty_term_apply(term, s + offset, 0); 453 a = options_array_next(a); 454 } 455 456 /* Update the RGB flag if the terminal has RGB colours. */ 457 if (tty_term_has(term, TTYC_SETRGBF) && 458 tty_term_has(term, TTYC_SETRGBB)) 459 term->flags |= TERM_RGBCOLOURS; 460 else 461 term->flags &= ~TERM_RGBCOLOURS; 462 log_debug("RGBCOLOURS flag is %d", !!(term->flags & TERM_RGBCOLOURS)); 463 464 /* 465 * Set or clear the DECSLRM flag if the terminal has the margin 466 * capabilities. 467 */ 468 if (tty_term_has(term, TTYC_CMG) && tty_term_has(term, TTYC_CLMG)) 469 term->flags |= TERM_DECSLRM; 470 else 471 term->flags &= ~TERM_DECSLRM; 472 log_debug("DECSLRM flag is %d", !!(term->flags & TERM_DECSLRM)); 473 474 /* 475 * Set or clear the DECFRA flag if the terminal has the rectangle 476 * capability. 477 */ 478 if (tty_term_has(term, TTYC_RECT)) 479 term->flags |= TERM_DECFRA; 480 else 481 term->flags &= ~TERM_DECFRA; 482 log_debug("DECFRA flag is %d", !!(term->flags & TERM_DECFRA)); 483 484 /* 485 * Terminals without am (auto right margin) wrap at at $COLUMNS - 1 486 * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1). 487 * 488 * Terminals without xenl (eat newline glitch) ignore a newline beyond 489 * the right edge of the terminal, but tmux doesn't care about this - 490 * it always uses absolute only moves the cursor with a newline when 491 * also sending a linefeed. 492 * 493 * This is irritating, most notably because it is painful to write to 494 * the very bottom-right of the screen without scrolling. 495 * 496 * Flag the terminal here and apply some workarounds in other places to 497 * do the best possible. 498 */ 499 if (!tty_term_flag(term, TTYC_AM)) 500 term->flags |= TERM_NOAM; 501 else 502 term->flags &= ~TERM_NOAM; 503 log_debug("NOAM flag is %d", !!(term->flags & TERM_NOAM)); 504 505 /* Generate ACS table. If none is present, use nearest ASCII. */ 506 memset(term->acs, 0, sizeof term->acs); 507 if (tty_term_has(term, TTYC_ACSC)) 508 acs = tty_term_string(term, TTYC_ACSC); 509 else 510 acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~."; 511 for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2) 512 term->acs[(u_char) acs[0]][0] = acs[1]; 513} 514 515struct tty_term * 516tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps, 517 int *feat, char **cause) 518{ 519 struct tty_term *term; 520 const struct tty_term_code_entry *ent; 521 struct tty_code *code; 522 struct options_entry *o; 523 struct options_array_item *a; 524 union options_value *ov; 525 u_int i, j; 526 const char *s, *value; 527 size_t offset, namelen; 528 char *first; 529 530 log_debug("adding term %s", name); 531 532 term = xcalloc(1, sizeof *term); 533 term->tty = tty; 534 term->name = xstrdup(name); 535 term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes); 536 LIST_INSERT_HEAD(&tty_terms, term, entry); 537 538 /* Fill in codes. */ 539 for (i = 0; i < ncaps; i++) { 540 namelen = strcspn(caps[i], "="); 541 if (namelen == 0) 542 continue; 543 value = caps[i] + namelen + 1; 544 545 for (j = 0; j < tty_term_ncodes(); j++) { 546 ent = &tty_term_codes[j]; 547 if (strncmp(ent->name, caps[i], namelen) != 0) 548 continue; 549 if (ent->name[namelen] != '\0') 550 continue; 551 552 code = &term->codes[j]; 553 code->type = TTYCODE_NONE; 554 switch (ent->type) { 555 case TTYCODE_NONE: 556 break; 557 case TTYCODE_STRING: 558 code->type = TTYCODE_STRING; 559 code->value.string = tty_term_strip(value); 560 break; 561 case TTYCODE_NUMBER: 562 code->type = TTYCODE_NUMBER; 563 code->value.number = atoi(value); 564 break; 565 case TTYCODE_FLAG: 566 code->type = TTYCODE_FLAG; 567 code->value.flag = (*value == '1'); 568 break; 569 } 570 } 571 } 572 573 /* Apply terminal features. */ 574 o = options_get_only(global_options, "terminal-features"); 575 a = options_array_first(o); 576 while (a != NULL) { 577 ov = options_array_item_value(a); 578 s = ov->string; 579 580 offset = 0; 581 first = tty_term_override_next(s, &offset); 582 if (first != NULL && fnmatch(first, term->name, 0) == 0) 583 tty_add_features(feat, s + offset, ":"); 584 a = options_array_next(a); 585 } 586 587 /* Delete curses data. */ 588#if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ 589 (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) 590 del_curterm(cur_term); 591#endif 592 593 /* Apply overrides so any capabilities used for features are changed. */ 594 tty_term_apply_overrides(term); 595 596 /* These are always required. */ 597 if (!tty_term_has(term, TTYC_CLEAR)) { 598 xasprintf(cause, "terminal does not support clear"); 599 goto error; 600 } 601 if (!tty_term_has(term, TTYC_CUP)) { 602 xasprintf(cause, "terminal does not support cup"); 603 goto error; 604 } 605 606 /* 607 * If TERM has XT or clear starts with CSI then it is safe to assume 608 * the terminal is derived from the VT100. This controls whether device 609 * attributes requests are sent to get more information. 610 * 611 * This is a bit of a hack but there aren't that many alternatives. 612 * Worst case tmux will just fall back to using whatever terminfo(5) 613 * says without trying to correct anything that is missing. 614 * 615 * Also add few features that VT100-like terminals should either 616 * support or safely ignore. 617 */ 618 s = tty_term_string(term, TTYC_CLEAR); 619 if (tty_term_flag(term, TTYC_XT) || strncmp(s, "\033[", 2) == 0) { 620 term->flags |= TERM_VT100LIKE; 621 tty_add_features(feat, "bpaste,focus,title", ","); 622 } 623 624 /* Add RGB feature if terminal has RGB colours. */ 625 if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) && 626 (!tty_term_has(term, TTYC_SETRGBF) || 627 !tty_term_has(term, TTYC_SETRGBB))) 628 tty_add_features(feat, "RGB", ","); 629 630 /* Apply the features and overrides again. */ 631 if (tty_apply_features(term, *feat)) 632 tty_term_apply_overrides(term); 633 634 /* Log the capabilities. */ 635 for (i = 0; i < tty_term_ncodes(); i++) 636 log_debug("%s%s", name, tty_term_describe(term, i)); 637 638 return (term); 639 640error: 641 tty_term_free(term); 642 return (NULL); 643} 644 645void 646tty_term_free(struct tty_term *term) 647{ 648 u_int i; 649 650 log_debug("removing term %s", term->name); 651 652 for (i = 0; i < tty_term_ncodes(); i++) { 653 if (term->codes[i].type == TTYCODE_STRING) 654 free(term->codes[i].value.string); 655 } 656 free(term->codes); 657 658 LIST_REMOVE(term, entry); 659 free(term->name); 660 free(term); 661} 662 663int 664tty_term_read_list(const char *name, int fd, char ***caps, u_int *ncaps, 665 char **cause) 666{ 667 const struct tty_term_code_entry *ent; 668 int error, n; 669 u_int i; 670 const char *s; 671 char tmp[11]; 672 673 if (setupterm(name, fd, &error) != OK) { 674 switch (error) { 675 case 1: 676 xasprintf(cause, "can't use hardcopy terminal: %s", 677 name); 678 break; 679 case 0: 680 xasprintf(cause, "missing or unsuitable terminal: %s", 681 name); 682 break; 683 case -1: 684 xasprintf(cause, "can't find terminfo database"); 685 break; 686 default: 687 xasprintf(cause, "unknown error"); 688 break; 689 } 690 return (-1); 691 } 692 693 *ncaps = 0; 694 *caps = NULL; 695 696 for (i = 0; i < tty_term_ncodes(); i++) { 697 ent = &tty_term_codes[i]; 698 switch (ent->type) { 699 case TTYCODE_NONE: 700 continue; 701 case TTYCODE_STRING: 702 s = tigetstr((const char *)ent->name); 703 if (s == NULL || s == (char *)-1) 704 continue; 705 break; 706 case TTYCODE_NUMBER: 707 n = tigetnum((const char *)ent->name); 708 if (n == -1 || n == -2) 709 continue; 710 xsnprintf(tmp, sizeof tmp, "%d", n); 711 s = tmp; 712 break; 713 case TTYCODE_FLAG: 714 n = tigetflag((const char *) ent->name); 715 if (n == -1) 716 continue; 717 if (n) 718 s = "1"; 719 else 720 s = "0"; 721 break; 722 default: 723 continue; 724 } 725 *caps = xreallocarray(*caps, (*ncaps) + 1, sizeof **caps); 726 xasprintf(&(*caps)[*ncaps], "%s=%s", ent->name, s); 727 (*ncaps)++; 728 } 729 730#if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ 731 (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) 732 del_curterm(cur_term); 733#endif 734 return (0); 735} 736 737void 738tty_term_free_list(char **caps, u_int ncaps) 739{ 740 u_int i; 741 742 for (i = 0; i < ncaps; i++) 743 free(caps[i]); 744 free(caps); 745} 746 747int 748tty_term_has(struct tty_term *term, enum tty_code_code code) 749{ 750 return (term->codes[code].type != TTYCODE_NONE); 751} 752 753const char * 754tty_term_string(struct tty_term *term, enum tty_code_code code) 755{ 756 if (!tty_term_has(term, code)) 757 return (""); 758 if (term->codes[code].type != TTYCODE_STRING) 759 fatalx("not a string: %d", code); 760 return (term->codes[code].value.string); 761} 762 763const char * 764tty_term_string1(struct tty_term *term, enum tty_code_code code, int a) 765{ 766 return (tparm(tty_term_string(term, code), a, 0, 0, 0, 0, 0, 0, 0, 0)); 767} 768 769const char * 770tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b) 771{ 772 return (tparm(tty_term_string(term, code), a, b, 0, 0, 0, 0, 0, 0, 0)); 773} 774 775const char * 776tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, 777 int c) 778{ 779 return (tparm(tty_term_string(term, code), a, b, c, 0, 0, 0, 0, 0, 0)); 780} 781 782const char * 783tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a) 784{ 785 return (tparm((const char *) tty_term_string(term, code), (long)a, 0, 0, 0, 0, 0, 0, 0, 0)); 786} 787 788const char * 789tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a, 790 const void *b) 791{ 792 return (tparm((const char *) tty_term_string(term, code), (long)a, (long)b, 0, 0, 0, 0, 0, 0, 0)); 793} 794 795int 796tty_term_number(struct tty_term *term, enum tty_code_code code) 797{ 798 if (!tty_term_has(term, code)) 799 return (0); 800 if (term->codes[code].type != TTYCODE_NUMBER) 801 fatalx("not a number: %d", code); 802 return (term->codes[code].value.number); 803} 804 805int 806tty_term_flag(struct tty_term *term, enum tty_code_code code) 807{ 808 if (!tty_term_has(term, code)) 809 return (0); 810 if (term->codes[code].type != TTYCODE_FLAG) 811 fatalx("not a flag: %d", code); 812 return (term->codes[code].value.flag); 813} 814 815const char * 816tty_term_describe(struct tty_term *term, enum tty_code_code code) 817{ 818 static char s[256]; 819 char out[128]; 820 821 switch (term->codes[code].type) { 822 case TTYCODE_NONE: 823 xsnprintf(s, sizeof s, "%4u: %s: [missing]", 824 code, tty_term_codes[code].name); 825 break; 826 case TTYCODE_STRING: 827 strnvis(out, sizeof out, term->codes[code].value.string, 828 VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL); 829 xsnprintf(s, sizeof s, "%4u: %s: (string) %s", 830 code, tty_term_codes[code].name, 831 out); 832 break; 833 case TTYCODE_NUMBER: 834 xsnprintf(s, sizeof s, "%4u: %s: (number) %d", 835 code, tty_term_codes[code].name, 836 term->codes[code].value.number); 837 break; 838 case TTYCODE_FLAG: 839 xsnprintf(s, sizeof s, "%4u: %s: (flag) %s", 840 code, tty_term_codes[code].name, 841 term->codes[code].value.flag ? "true" : "false"); 842 break; 843 } 844 return (s); 845} 846