1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott (at) 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 char *tty_term_strip(const char *); 34 35 struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms); 36 37 enum tty_code_type { 38 TTYCODE_NONE = 0, 39 TTYCODE_STRING, 40 TTYCODE_NUMBER, 41 TTYCODE_FLAG, 42 }; 43 44 struct tty_code { 45 enum tty_code_type type; 46 union { 47 char *string; 48 int number; 49 int flag; 50 } value; 51 }; 52 53 struct tty_term_code_entry { 54 enum tty_code_type type; 55 const char *name; 56 }; 57 58 static 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_HLS] = { TTYCODE_STRING, "Hls" }, 107 [TTYC_HOME] = { TTYCODE_STRING, "home" }, 108 [TTYC_HPA] = { TTYCODE_STRING, "hpa" }, 109 [TTYC_ICH1] = { TTYCODE_STRING, "ich1" }, 110 [TTYC_ICH] = { TTYCODE_STRING, "ich" }, 111 [TTYC_IL1] = { TTYCODE_STRING, "il1" }, 112 [TTYC_IL] = { TTYCODE_STRING, "il" }, 113 [TTYC_INDN] = { TTYCODE_STRING, "indn" }, 114 [TTYC_INVIS] = { TTYCODE_STRING, "invis" }, 115 [TTYC_KCBT] = { TTYCODE_STRING, "kcbt" }, 116 [TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" }, 117 [TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" }, 118 [TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" }, 119 [TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" }, 120 [TTYC_KDC2] = { TTYCODE_STRING, "kDC" }, 121 [TTYC_KDC3] = { TTYCODE_STRING, "kDC3" }, 122 [TTYC_KDC4] = { TTYCODE_STRING, "kDC4" }, 123 [TTYC_KDC5] = { TTYCODE_STRING, "kDC5" }, 124 [TTYC_KDC6] = { TTYCODE_STRING, "kDC6" }, 125 [TTYC_KDC7] = { TTYCODE_STRING, "kDC7" }, 126 [TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" }, 127 [TTYC_KDN2] = { TTYCODE_STRING, "kDN" }, /* not kDN2 */ 128 [TTYC_KDN3] = { TTYCODE_STRING, "kDN3" }, 129 [TTYC_KDN4] = { TTYCODE_STRING, "kDN4" }, 130 [TTYC_KDN5] = { TTYCODE_STRING, "kDN5" }, 131 [TTYC_KDN6] = { TTYCODE_STRING, "kDN6" }, 132 [TTYC_KDN7] = { TTYCODE_STRING, "kDN7" }, 133 [TTYC_KEND2] = { TTYCODE_STRING, "kEND" }, 134 [TTYC_KEND3] = { TTYCODE_STRING, "kEND3" }, 135 [TTYC_KEND4] = { TTYCODE_STRING, "kEND4" }, 136 [TTYC_KEND5] = { TTYCODE_STRING, "kEND5" }, 137 [TTYC_KEND6] = { TTYCODE_STRING, "kEND6" }, 138 [TTYC_KEND7] = { TTYCODE_STRING, "kEND7" }, 139 [TTYC_KEND] = { TTYCODE_STRING, "kend" }, 140 [TTYC_KF10] = { TTYCODE_STRING, "kf10" }, 141 [TTYC_KF11] = { TTYCODE_STRING, "kf11" }, 142 [TTYC_KF12] = { TTYCODE_STRING, "kf12" }, 143 [TTYC_KF13] = { TTYCODE_STRING, "kf13" }, 144 [TTYC_KF14] = { TTYCODE_STRING, "kf14" }, 145 [TTYC_KF15] = { TTYCODE_STRING, "kf15" }, 146 [TTYC_KF16] = { TTYCODE_STRING, "kf16" }, 147 [TTYC_KF17] = { TTYCODE_STRING, "kf17" }, 148 [TTYC_KF18] = { TTYCODE_STRING, "kf18" }, 149 [TTYC_KF19] = { TTYCODE_STRING, "kf19" }, 150 [TTYC_KF1] = { TTYCODE_STRING, "kf1" }, 151 [TTYC_KF20] = { TTYCODE_STRING, "kf20" }, 152 [TTYC_KF21] = { TTYCODE_STRING, "kf21" }, 153 [TTYC_KF22] = { TTYCODE_STRING, "kf22" }, 154 [TTYC_KF23] = { TTYCODE_STRING, "kf23" }, 155 [TTYC_KF24] = { TTYCODE_STRING, "kf24" }, 156 [TTYC_KF25] = { TTYCODE_STRING, "kf25" }, 157 [TTYC_KF26] = { TTYCODE_STRING, "kf26" }, 158 [TTYC_KF27] = { TTYCODE_STRING, "kf27" }, 159 [TTYC_KF28] = { TTYCODE_STRING, "kf28" }, 160 [TTYC_KF29] = { TTYCODE_STRING, "kf29" }, 161 [TTYC_KF2] = { TTYCODE_STRING, "kf2" }, 162 [TTYC_KF30] = { TTYCODE_STRING, "kf30" }, 163 [TTYC_KF31] = { TTYCODE_STRING, "kf31" }, 164 [TTYC_KF32] = { TTYCODE_STRING, "kf32" }, 165 [TTYC_KF33] = { TTYCODE_STRING, "kf33" }, 166 [TTYC_KF34] = { TTYCODE_STRING, "kf34" }, 167 [TTYC_KF35] = { TTYCODE_STRING, "kf35" }, 168 [TTYC_KF36] = { TTYCODE_STRING, "kf36" }, 169 [TTYC_KF37] = { TTYCODE_STRING, "kf37" }, 170 [TTYC_KF38] = { TTYCODE_STRING, "kf38" }, 171 [TTYC_KF39] = { TTYCODE_STRING, "kf39" }, 172 [TTYC_KF3] = { TTYCODE_STRING, "kf3" }, 173 [TTYC_KF40] = { TTYCODE_STRING, "kf40" }, 174 [TTYC_KF41] = { TTYCODE_STRING, "kf41" }, 175 [TTYC_KF42] = { TTYCODE_STRING, "kf42" }, 176 [TTYC_KF43] = { TTYCODE_STRING, "kf43" }, 177 [TTYC_KF44] = { TTYCODE_STRING, "kf44" }, 178 [TTYC_KF45] = { TTYCODE_STRING, "kf45" }, 179 [TTYC_KF46] = { TTYCODE_STRING, "kf46" }, 180 [TTYC_KF47] = { TTYCODE_STRING, "kf47" }, 181 [TTYC_KF48] = { TTYCODE_STRING, "kf48" }, 182 [TTYC_KF49] = { TTYCODE_STRING, "kf49" }, 183 [TTYC_KF4] = { TTYCODE_STRING, "kf4" }, 184 [TTYC_KF50] = { TTYCODE_STRING, "kf50" }, 185 [TTYC_KF51] = { TTYCODE_STRING, "kf51" }, 186 [TTYC_KF52] = { TTYCODE_STRING, "kf52" }, 187 [TTYC_KF53] = { TTYCODE_STRING, "kf53" }, 188 [TTYC_KF54] = { TTYCODE_STRING, "kf54" }, 189 [TTYC_KF55] = { TTYCODE_STRING, "kf55" }, 190 [TTYC_KF56] = { TTYCODE_STRING, "kf56" }, 191 [TTYC_KF57] = { TTYCODE_STRING, "kf57" }, 192 [TTYC_KF58] = { TTYCODE_STRING, "kf58" }, 193 [TTYC_KF59] = { TTYCODE_STRING, "kf59" }, 194 [TTYC_KF5] = { TTYCODE_STRING, "kf5" }, 195 [TTYC_KF60] = { TTYCODE_STRING, "kf60" }, 196 [TTYC_KF61] = { TTYCODE_STRING, "kf61" }, 197 [TTYC_KF62] = { TTYCODE_STRING, "kf62" }, 198 [TTYC_KF63] = { TTYCODE_STRING, "kf63" }, 199 [TTYC_KF6] = { TTYCODE_STRING, "kf6" }, 200 [TTYC_KF7] = { TTYCODE_STRING, "kf7" }, 201 [TTYC_KF8] = { TTYCODE_STRING, "kf8" }, 202 [TTYC_KF9] = { TTYCODE_STRING, "kf9" }, 203 [TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" }, 204 [TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" }, 205 [TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" }, 206 [TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" }, 207 [TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" }, 208 [TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" }, 209 [TTYC_KHOME] = { TTYCODE_STRING, "khome" }, 210 [TTYC_KIC2] = { TTYCODE_STRING, "kIC" }, 211 [TTYC_KIC3] = { TTYCODE_STRING, "kIC3" }, 212 [TTYC_KIC4] = { TTYCODE_STRING, "kIC4" }, 213 [TTYC_KIC5] = { TTYCODE_STRING, "kIC5" }, 214 [TTYC_KIC6] = { TTYCODE_STRING, "kIC6" }, 215 [TTYC_KIC7] = { TTYCODE_STRING, "kIC7" }, 216 [TTYC_KICH1] = { TTYCODE_STRING, "kich1" }, 217 [TTYC_KIND] = { TTYCODE_STRING, "kind" }, 218 [TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" }, 219 [TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" }, 220 [TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" }, 221 [TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" }, 222 [TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" }, 223 [TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" }, 224 [TTYC_KMOUS] = { TTYCODE_STRING, "kmous" }, 225 [TTYC_KNP] = { TTYCODE_STRING, "knp" }, 226 [TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" }, 227 [TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" }, 228 [TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" }, 229 [TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" }, 230 [TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" }, 231 [TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" }, 232 [TTYC_KPP] = { TTYCODE_STRING, "kpp" }, 233 [TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" }, 234 [TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" }, 235 [TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" }, 236 [TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" }, 237 [TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" }, 238 [TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" }, 239 [TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" }, 240 [TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" }, 241 [TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" }, 242 [TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" }, 243 [TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" }, 244 [TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" }, 245 [TTYC_KRI] = { TTYCODE_STRING, "kri" }, 246 [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */ 247 [TTYC_KUP3] = { TTYCODE_STRING, "kUP3" }, 248 [TTYC_KUP4] = { TTYCODE_STRING, "kUP4" }, 249 [TTYC_KUP5] = { TTYCODE_STRING, "kUP5" }, 250 [TTYC_KUP6] = { TTYCODE_STRING, "kUP6" }, 251 [TTYC_KUP7] = { TTYCODE_STRING, "kUP7" }, 252 [TTYC_MS] = { TTYCODE_STRING, "Ms" }, 253 [TTYC_NOBR] = { TTYCODE_STRING, "Nobr" }, 254 [TTYC_OL] = { TTYCODE_STRING, "ol" }, 255 [TTYC_OP] = { TTYCODE_STRING, "op" }, 256 [TTYC_RECT] = { TTYCODE_STRING, "Rect" }, 257 [TTYC_REV] = { TTYCODE_STRING, "rev" }, 258 [TTYC_RGB] = { TTYCODE_FLAG, "RGB" }, 259 [TTYC_RIN] = { TTYCODE_STRING, "rin" }, 260 [TTYC_RI] = { TTYCODE_STRING, "ri" }, 261 [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" }, 262 [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" }, 263 [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" }, 264 [TTYC_SETAB] = { TTYCODE_STRING, "setab" }, 265 [TTYC_SETAF] = { TTYCODE_STRING, "setaf" }, 266 [TTYC_SETAL] = { TTYCODE_STRING, "setal" }, 267 [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" }, 268 [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" }, 269 [TTYC_SETULC] = { TTYCODE_STRING, "Setulc" }, 270 [TTYC_SETULC1] = { TTYCODE_STRING, "Setulc1" }, 271 [TTYC_SE] = { TTYCODE_STRING, "Se" }, 272 [TTYC_SXL] = { TTYCODE_FLAG, "Sxl" }, 273 [TTYC_SGR0] = { TTYCODE_STRING, "sgr0" }, 274 [TTYC_SITM] = { TTYCODE_STRING, "sitm" }, 275 [TTYC_SMACS] = { TTYCODE_STRING, "smacs" }, 276 [TTYC_SMCUP] = { TTYCODE_STRING, "smcup" }, 277 [TTYC_SMKX] = { TTYCODE_STRING, "smkx" }, 278 [TTYC_SMOL] = { TTYCODE_STRING, "Smol" }, 279 [TTYC_SMSO] = { TTYCODE_STRING, "smso" }, 280 [TTYC_SMULX] = { TTYCODE_STRING, "Smulx" }, 281 [TTYC_SMUL] = { TTYCODE_STRING, "smul" }, 282 [TTYC_SMXX] = { TTYCODE_STRING, "smxx" }, 283 [TTYC_SS] = { TTYCODE_STRING, "Ss" }, 284 [TTYC_SWD] = { TTYCODE_STRING, "Swd" }, 285 [TTYC_SYNC] = { TTYCODE_STRING, "Sync" }, 286 [TTYC_TC] = { TTYCODE_FLAG, "Tc" }, 287 [TTYC_TSL] = { TTYCODE_STRING, "tsl" }, 288 [TTYC_U8] = { TTYCODE_NUMBER, "U8" }, 289 [TTYC_VPA] = { TTYCODE_STRING, "vpa" }, 290 [TTYC_XT] = { TTYCODE_FLAG, "XT" } 291 }; 292 293 u_int 294 tty_term_ncodes(void) 295 { 296 return (nitems(tty_term_codes)); 297 } 298 299 static char * 300 tty_term_strip(const char *s) 301 { 302 const char *ptr; 303 static char buf[8192]; 304 size_t len; 305 306 /* Ignore strings with no padding. */ 307 if (strchr(s, '$') == NULL) 308 return (xstrdup(s)); 309 310 len = 0; 311 for (ptr = s; *ptr != '\0'; ptr++) { 312 if (*ptr == '$' && *(ptr + 1) == '<') { 313 while (*ptr != '\0' && *ptr != '>') 314 ptr++; 315 if (*ptr == '>') 316 ptr++; 317 if (*ptr == '\0') 318 break; 319 } 320 321 buf[len++] = *ptr; 322 if (len == (sizeof buf) - 1) 323 break; 324 } 325 buf[len] = '\0'; 326 327 return (xstrdup(buf)); 328 } 329 330 static char * 331 tty_term_override_next(const char *s, size_t *offset) 332 { 333 static char value[8192]; 334 size_t n = 0, at = *offset; 335 336 if (s[at] == '\0') 337 return (NULL); 338 339 while (s[at] != '\0') { 340 if (s[at] == ':') { 341 if (s[at + 1] == ':') { 342 value[n++] = ':'; 343 at += 2; 344 } else 345 break; 346 } else { 347 value[n++] = s[at]; 348 at++; 349 } 350 if (n == (sizeof value) - 1) 351 return (NULL); 352 } 353 if (s[at] != '\0') 354 *offset = at + 1; 355 else 356 *offset = at; 357 value[n] = '\0'; 358 return (value); 359 } 360 361 void 362 tty_term_apply(struct tty_term *term, const char *capabilities, int quiet) 363 { 364 const struct tty_term_code_entry *ent; 365 struct tty_code *code; 366 size_t offset = 0; 367 char *cp, *value, *s; 368 const char *errstr, *name = term->name; 369 u_int i; 370 int n, remove; 371 372 while ((s = tty_term_override_next(capabilities, &offset)) != NULL) { 373 if (*s == '\0') 374 continue; 375 value = NULL; 376 377 remove = 0; 378 if ((cp = strchr(s, '=')) != NULL) { 379 *cp++ = '\0'; 380 value = xstrdup(cp); 381 if (strunvis(value, cp) == -1) { 382 free(value); 383 value = xstrdup(cp); 384 } 385 } else if (s[strlen(s) - 1] == '@') { 386 s[strlen(s) - 1] = '\0'; 387 remove = 1; 388 } else 389 value = xstrdup(""); 390 391 if (!quiet) { 392 if (remove) 393 log_debug("%s override: %s@", name, s); 394 else if (*value == '\0') 395 log_debug("%s override: %s", name, s); 396 else 397 log_debug("%s override: %s=%s", name, s, value); 398 } 399 400 for (i = 0; i < tty_term_ncodes(); i++) { 401 ent = &tty_term_codes[i]; 402 if (strcmp(s, ent->name) != 0) 403 continue; 404 code = &term->codes[i]; 405 406 if (remove) { 407 code->type = TTYCODE_NONE; 408 continue; 409 } 410 switch (ent->type) { 411 case TTYCODE_NONE: 412 break; 413 case TTYCODE_STRING: 414 if (code->type == TTYCODE_STRING) 415 free(code->value.string); 416 code->value.string = xstrdup(value); 417 code->type = ent->type; 418 break; 419 case TTYCODE_NUMBER: 420 n = strtonum(value, 0, INT_MAX, &errstr); 421 if (errstr != NULL) 422 break; 423 code->value.number = n; 424 code->type = ent->type; 425 break; 426 case TTYCODE_FLAG: 427 code->value.flag = 1; 428 code->type = ent->type; 429 break; 430 } 431 } 432 433 free(value); 434 } 435 } 436 437 void 438 tty_term_apply_overrides(struct tty_term *term) 439 { 440 struct options_entry *o; 441 struct options_array_item *a; 442 union options_value *ov; 443 const char *s, *acs; 444 size_t offset; 445 char *first; 446 447 /* Update capabilities from the option. */ 448 o = options_get_only(global_options, "terminal-overrides"); 449 a = options_array_first(o); 450 while (a != NULL) { 451 ov = options_array_item_value(a); 452 s = ov->string; 453 454 offset = 0; 455 first = tty_term_override_next(s, &offset); 456 if (first != NULL && fnmatch(first, term->name, 0) == 0) 457 tty_term_apply(term, s + offset, 0); 458 a = options_array_next(a); 459 } 460 461 /* Log the SIXEL flag. */ 462 log_debug("SIXEL flag is %d", !!(term->flags & TERM_SIXEL)); 463 464 /* Update the RGB flag if the terminal has RGB colours. */ 465 if (tty_term_has(term, TTYC_SETRGBF) && 466 tty_term_has(term, TTYC_SETRGBB)) 467 term->flags |= TERM_RGBCOLOURS; 468 else 469 term->flags &= ~TERM_RGBCOLOURS; 470 log_debug("RGBCOLOURS flag is %d", !!(term->flags & TERM_RGBCOLOURS)); 471 472 /* 473 * Set or clear the DECSLRM flag if the terminal has the margin 474 * capabilities. 475 */ 476 if (tty_term_has(term, TTYC_CMG) && tty_term_has(term, TTYC_CLMG)) 477 term->flags |= TERM_DECSLRM; 478 else 479 term->flags &= ~TERM_DECSLRM; 480 log_debug("DECSLRM flag is %d", !!(term->flags & TERM_DECSLRM)); 481 482 /* 483 * Set or clear the DECFRA flag if the terminal has the rectangle 484 * capability. 485 */ 486 if (tty_term_has(term, TTYC_RECT)) 487 term->flags |= TERM_DECFRA; 488 else 489 term->flags &= ~TERM_DECFRA; 490 log_debug("DECFRA flag is %d", !!(term->flags & TERM_DECFRA)); 491 492 /* 493 * Terminals without am (auto right margin) wrap at at $COLUMNS - 1 494 * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1). 495 * 496 * Terminals without xenl (eat newline glitch) ignore a newline beyond 497 * the right edge of the terminal, but tmux doesn't care about this - 498 * it always uses absolute only moves the cursor with a newline when 499 * also sending a linefeed. 500 * 501 * This is irritating, most notably because it is painful to write to 502 * the very bottom-right of the screen without scrolling. 503 * 504 * Flag the terminal here and apply some workarounds in other places to 505 * do the best possible. 506 */ 507 if (!tty_term_flag(term, TTYC_AM)) 508 term->flags |= TERM_NOAM; 509 else 510 term->flags &= ~TERM_NOAM; 511 log_debug("NOAM flag is %d", !!(term->flags & TERM_NOAM)); 512 513 /* Generate ACS table. If none is present, use nearest ASCII. */ 514 memset(term->acs, 0, sizeof term->acs); 515 if (tty_term_has(term, TTYC_ACSC)) 516 acs = tty_term_string(term, TTYC_ACSC); 517 else 518 acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~."; 519 for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2) 520 term->acs[(u_char) acs[0]][0] = acs[1]; 521 } 522 523 struct tty_term * 524 tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps, 525 int *feat, char **cause) 526 { 527 struct tty_term *term; 528 const struct tty_term_code_entry *ent; 529 struct tty_code *code; 530 struct options_entry *o; 531 struct options_array_item *a; 532 union options_value *ov; 533 u_int i, j; 534 const char *s, *value, *errstr; 535 size_t offset, namelen; 536 char *first; 537 int n; 538 struct environ_entry *envent; 539 540 log_debug("adding term %s", name); 541 542 term = xcalloc(1, sizeof *term); 543 term->tty = tty; 544 term->name = xstrdup(name); 545 term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes); 546 LIST_INSERT_HEAD(&tty_terms, term, entry); 547 548 /* Fill in codes. */ 549 for (i = 0; i < ncaps; i++) { 550 namelen = strcspn(caps[i], "="); 551 if (namelen == 0) 552 continue; 553 value = caps[i] + namelen + 1; 554 555 for (j = 0; j < tty_term_ncodes(); j++) { 556 ent = &tty_term_codes[j]; 557 if (strncmp(ent->name, caps[i], namelen) != 0) 558 continue; 559 if (ent->name[namelen] != '\0') 560 continue; 561 562 code = &term->codes[j]; 563 code->type = TTYCODE_NONE; 564 switch (ent->type) { 565 case TTYCODE_NONE: 566 break; 567 case TTYCODE_STRING: 568 code->type = TTYCODE_STRING; 569 code->value.string = tty_term_strip(value); 570 break; 571 case TTYCODE_NUMBER: 572 n = strtonum(value, 0, INT_MAX, &errstr); 573 if (errstr != NULL) 574 log_debug("%s: %s", ent->name, errstr); 575 else { 576 code->type = TTYCODE_NUMBER; 577 code->value.number = n; 578 } 579 break; 580 case TTYCODE_FLAG: 581 code->type = TTYCODE_FLAG; 582 code->value.flag = (*value == '1'); 583 break; 584 } 585 } 586 } 587 588 /* Apply terminal features. */ 589 o = options_get_only(global_options, "terminal-features"); 590 a = options_array_first(o); 591 while (a != NULL) { 592 ov = options_array_item_value(a); 593 s = ov->string; 594 595 offset = 0; 596 first = tty_term_override_next(s, &offset); 597 if (first != NULL && fnmatch(first, term->name, 0) == 0) 598 tty_add_features(feat, s + offset, ":"); 599 a = options_array_next(a); 600 } 601 602 /* Delete curses data. */ 603 #if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ 604 (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) 605 del_curterm(cur_term); 606 #endif 607 /* Check for COLORTERM. */ 608 envent = environ_find(tty->client->environ, "COLORTERM"); 609 if (envent != NULL) { 610 log_debug("%s COLORTERM=%s", tty->client->name, envent->value); 611 if (strcasecmp(envent->value, "truecolor") == 0 || 612 strcasecmp(envent->value, "24bit") == 0) 613 tty_add_features(feat, "RGB", ","); 614 else if (strstr(envent->value, "256") != NULL) 615 tty_add_features(feat, "256", ","); 616 } 617 618 /* Apply overrides so any capabilities used for features are changed. */ 619 tty_term_apply_overrides(term); 620 621 /* These are always required. */ 622 if (!tty_term_has(term, TTYC_CLEAR)) { 623 xasprintf(cause, "terminal does not support clear"); 624 goto error; 625 } 626 if (!tty_term_has(term, TTYC_CUP)) { 627 xasprintf(cause, "terminal does not support cup"); 628 goto error; 629 } 630 631 /* 632 * If TERM has XT or clear starts with CSI then it is safe to assume 633 * the terminal is derived from the VT100. This controls whether device 634 * attributes requests are sent to get more information. 635 * 636 * This is a bit of a hack but there aren't that many alternatives. 637 * Worst case tmux will just fall back to using whatever terminfo(5) 638 * says without trying to correct anything that is missing. 639 * 640 * Also add few features that VT100-like terminals should either 641 * support or safely ignore. 642 */ 643 s = tty_term_string(term, TTYC_CLEAR); 644 if (tty_term_flag(term, TTYC_XT) || strncmp(s, "\033[", 2) == 0) { 645 term->flags |= TERM_VT100LIKE; 646 tty_add_features(feat, "bpaste,focus,title", ","); 647 } 648 649 /* Add RGB feature if terminal has RGB colours. */ 650 if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) && 651 (!tty_term_has(term, TTYC_SETRGBF) || 652 !tty_term_has(term, TTYC_SETRGBB))) 653 tty_add_features(feat, "RGB", ","); 654 655 /* Apply the features and overrides again. */ 656 if (tty_apply_features(term, *feat)) 657 tty_term_apply_overrides(term); 658 659 /* Log the capabilities. */ 660 for (i = 0; i < tty_term_ncodes(); i++) 661 log_debug("%s%s", name, tty_term_describe(term, i)); 662 663 return (term); 664 665 error: 666 tty_term_free(term); 667 return (NULL); 668 } 669 670 void 671 tty_term_free(struct tty_term *term) 672 { 673 u_int i; 674 675 log_debug("removing term %s", term->name); 676 677 for (i = 0; i < tty_term_ncodes(); i++) { 678 if (term->codes[i].type == TTYCODE_STRING) 679 free(term->codes[i].value.string); 680 } 681 free(term->codes); 682 683 LIST_REMOVE(term, entry); 684 free(term->name); 685 free(term); 686 } 687 688 int 689 tty_term_read_list(const char *name, int fd, char ***caps, u_int *ncaps, 690 char **cause) 691 { 692 const struct tty_term_code_entry *ent; 693 int error, n; 694 u_int i; 695 const char *s; 696 char tmp[11]; 697 698 if (setupterm(__UNCONST(name), fd, &error) != OK) { 699 switch (error) { 700 case 1: 701 xasprintf(cause, "can't use hardcopy terminal: %s", 702 name); 703 break; 704 case 0: 705 xasprintf(cause, "missing or unsuitable terminal: %s", 706 name); 707 break; 708 case -1: 709 xasprintf(cause, "can't find terminfo database"); 710 break; 711 default: 712 xasprintf(cause, "unknown error"); 713 break; 714 } 715 return (-1); 716 } 717 718 *ncaps = 0; 719 *caps = NULL; 720 721 for (i = 0; i < tty_term_ncodes(); i++) { 722 ent = &tty_term_codes[i]; 723 switch (ent->type) { 724 case TTYCODE_NONE: 725 continue; 726 case TTYCODE_STRING: 727 s = tigetstr((const char *)ent->name); 728 if (s == NULL || s == (char *)-1) 729 continue; 730 break; 731 case TTYCODE_NUMBER: 732 n = tigetnum((const char *)ent->name); 733 if (n == -1 || n == -2) 734 continue; 735 xsnprintf(tmp, sizeof tmp, "%d", n); 736 s = tmp; 737 break; 738 case TTYCODE_FLAG: 739 n = tigetflag((const char *)ent->name); 740 if (n == -1) 741 continue; 742 if (n) 743 s = "1"; 744 else 745 s = "0"; 746 break; 747 default: 748 fatalx("unknown capability type"); 749 } 750 *caps = xreallocarray(*caps, (*ncaps) + 1, sizeof **caps); 751 xasprintf(&(*caps)[*ncaps], "%s=%s", ent->name, s); 752 (*ncaps)++; 753 } 754 755 #if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ 756 (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) 757 del_curterm(cur_term); 758 #endif 759 return (0); 760 } 761 762 void 763 tty_term_free_list(char **caps, u_int ncaps) 764 { 765 u_int i; 766 767 for (i = 0; i < ncaps; i++) 768 free(caps[i]); 769 free(caps); 770 } 771 772 int 773 tty_term_has(struct tty_term *term, enum tty_code_code code) 774 { 775 return (term->codes[code].type != TTYCODE_NONE); 776 } 777 778 const char * 779 tty_term_string(struct tty_term *term, enum tty_code_code code) 780 { 781 if (!tty_term_has(term, code)) 782 return (""); 783 if (term->codes[code].type != TTYCODE_STRING) 784 fatalx("not a string: %d", code); 785 return (term->codes[code].value.string); 786 } 787 788 const char * 789 tty_term_string_i(struct tty_term *term, enum tty_code_code code, int a) 790 { 791 const char *x = tty_term_string(term, code), *s; 792 793 #if defined(HAVE_TIPARM_S) 794 s = tiparm_s(1, 0, x, a); 795 #elif defined(HAVE_TIPARM) 796 s = tiparm(x, a); 797 #else 798 s = tparm((char *)x, a, 0, 0, 0, 0, 0, 0, 0, 0); 799 #endif 800 if (s == NULL) { 801 log_debug("could not expand %s", tty_term_codes[code].name); 802 return (""); 803 } 804 return (s); 805 } 806 807 const char * 808 tty_term_string_ii(struct tty_term *term, enum tty_code_code code, int a, int b) 809 { 810 const char *x = tty_term_string(term, code), *s; 811 812 #if defined(HAVE_TIPARM_S) 813 s = tiparm_s(2, 0, x, a, b); 814 #elif defined(HAVE_TIPARM) 815 s = tiparm(x, a, b); 816 #else 817 s = tparm((char *)x, a, b, 0, 0, 0, 0, 0, 0, 0); 818 #endif 819 if (s == NULL) { 820 log_debug("could not expand %s", tty_term_codes[code].name); 821 return (""); 822 } 823 return (s); 824 } 825 826 const char * 827 tty_term_string_iii(struct tty_term *term, enum tty_code_code code, int a, 828 int b, int c) 829 { 830 const char *x = tty_term_string(term, code), *s; 831 832 #if defined(HAVE_TIPARM_S) 833 s = tiparm_s(3, 0, x, a, b, c); 834 #elif defined(HAVE_TIPARM) 835 s = tiparm(x, a, b, c); 836 #else 837 s = tparm((char *)x, a, b, c, 0, 0, 0, 0, 0, 0); 838 #endif 839 if (s == NULL) { 840 log_debug("could not expand %s", tty_term_codes[code].name); 841 return (""); 842 } 843 return (s); 844 } 845 846 const char * 847 tty_term_string_s(struct tty_term *term, enum tty_code_code code, const char *a) 848 { 849 const char *x = tty_term_string(term, code), *s; 850 851 #if defined(HAVE_TIPARM_S) 852 s = tiparm_s(1, 1, x, a); 853 #elif defined(HAVE_TIPARM) 854 s = tiparm(x, a); 855 #else 856 s = tparm((char *)x, (long)a, 0, 0, 0, 0, 0, 0, 0, 0); 857 #endif 858 if (s == NULL) { 859 log_debug("could not expand %s", tty_term_codes[code].name); 860 return (""); 861 } 862 return (s); 863 } 864 865 const char * 866 tty_term_string_ss(struct tty_term *term, enum tty_code_code code, 867 const char *a, const char *b) 868 { 869 const char *x = tty_term_string(term, code), *s; 870 871 #if defined(HAVE_TIPARM_S) 872 s = tiparm_s(2, 3, x, a, b); 873 #elif defined(HAVE_TIPARM) 874 s = tiparm(x, a, b); 875 #else 876 s = tparm((char *)x, (long)a, (long)b, 0, 0, 0, 0, 0, 0, 0); 877 #endif 878 if (s == NULL) { 879 log_debug("could not expand %s", tty_term_codes[code].name); 880 return (""); 881 } 882 return (s); 883 } 884 885 int 886 tty_term_number(struct tty_term *term, enum tty_code_code code) 887 { 888 if (!tty_term_has(term, code)) 889 return (0); 890 if (term->codes[code].type != TTYCODE_NUMBER) 891 fatalx("not a number: %d", code); 892 return (term->codes[code].value.number); 893 } 894 895 int 896 tty_term_flag(struct tty_term *term, enum tty_code_code code) 897 { 898 if (!tty_term_has(term, code)) 899 return (0); 900 if (term->codes[code].type != TTYCODE_FLAG) 901 fatalx("not a flag: %d", code); 902 return (term->codes[code].value.flag); 903 } 904 905 const char * 906 tty_term_describe(struct tty_term *term, enum tty_code_code code) 907 { 908 static char s[256]; 909 char out[128]; 910 911 switch (term->codes[code].type) { 912 case TTYCODE_NONE: 913 xsnprintf(s, sizeof s, "%4u: %s: [missing]", 914 code, tty_term_codes[code].name); 915 break; 916 case TTYCODE_STRING: 917 strnvis(out, sizeof out, term->codes[code].value.string, 918 VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL); 919 xsnprintf(s, sizeof s, "%4u: %s: (string) %s", 920 code, tty_term_codes[code].name, 921 out); 922 break; 923 case TTYCODE_NUMBER: 924 xsnprintf(s, sizeof s, "%4u: %s: (number) %d", 925 code, tty_term_codes[code].name, 926 term->codes[code].value.number); 927 break; 928 case TTYCODE_FLAG: 929 xsnprintf(s, sizeof s, "%4u: %s: (flag) %s", 930 code, tty_term_codes[code].name, 931 term->codes[code].value.flag ? "true" : "false"); 932 break; 933 } 934 return (s); 935 } 936
Indexes created Wed Jun 17 00:25:26 UTC 2026