1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2007 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 #include <netinet/in.h> 22 23 #include <ctype.h> 24 #include <resolv.h> 25 #include <stdlib.h> 26 #include <string.h> 27 #include <time.h> 28 29 #include "tmux.h" 30 31 /* 32 * Based on the description by Paul Williams at: 33 * 34 * https://vt100.net/emu/dec_ansi_parser 35 * 36 * With the following changes: 37 * 38 * - 7-bit only. 39 * 40 * - Support for UTF-8. 41 * 42 * - OSC (but not APC) may be terminated by \007 as well as ST. 43 * 44 * - A state for APC similar to OSC. Some terminals appear to use this to set 45 * the title. 46 * 47 * - A state for the screen \033k...\033\\ sequence to rename a window. This is 48 * pretty stupid but not supporting it is more trouble than it is worth. 49 * 50 * - Special handling for ESC inside a DCS to allow arbitrary byte sequences to 51 * be passed to the underlying terminals. 52 */ 53 54 /* Input parser cell. */ 55 struct input_cell { 56 struct grid_cell cell; 57 int set; 58 int g0set; /* 1 if ACS */ 59 int g1set; /* 1 if ACS */ 60 }; 61 62 /* Input parser argument. */ 63 struct input_param { 64 enum { 65 INPUT_MISSING, 66 INPUT_NUMBER, 67 INPUT_STRING 68 } type; 69 union { 70 int num; 71 char *str; 72 }; 73 }; 74 75 /* Input parser context. */ 76 struct input_ctx { 77 struct window_pane *wp; 78 struct bufferevent *event; 79 struct screen_write_ctx ctx; 80 struct colour_palette *palette; 81 82 struct input_cell cell; 83 84 struct input_cell old_cell; 85 u_int old_cx; 86 u_int old_cy; 87 int old_mode; 88 89 u_char interm_buf[4]; 90 size_t interm_len; 91 92 u_char param_buf[64]; 93 size_t param_len; 94 95 #define INPUT_BUF_START 32 96 #define INPUT_BUF_LIMIT 1048576 97 u_char *input_buf; 98 size_t input_len; 99 size_t input_space; 100 enum { 101 INPUT_END_ST, 102 INPUT_END_BEL 103 } input_end; 104 105 struct input_param param_list[24]; 106 u_int param_list_len; 107 108 struct utf8_data utf8data; 109 int utf8started; 110 111 int ch; 112 int last; 113 114 int flags; 115 #define INPUT_DISCARD 0x1 116 117 const struct input_state *state; 118 119 struct event timer; 120 121 /* 122 * All input received since we were last in the ground state. Sent to 123 * control clients on connection. 124 */ 125 struct evbuffer *since_ground; 126 }; 127 128 /* Helper functions. */ 129 struct input_transition; 130 static int input_split(struct input_ctx *); 131 static int input_get(struct input_ctx *, u_int, int, int); 132 static void printflike(2, 3) input_reply(struct input_ctx *, const char *, ...); 133 static void input_set_state(struct input_ctx *, 134 const struct input_transition *); 135 static void input_reset_cell(struct input_ctx *); 136 137 static void input_osc_4(struct input_ctx *, const char *); 138 static void input_osc_8(struct input_ctx *, const char *); 139 static void input_osc_10(struct input_ctx *, const char *); 140 static void input_osc_11(struct input_ctx *, const char *); 141 static void input_osc_12(struct input_ctx *, const char *); 142 static void input_osc_52(struct input_ctx *, const char *); 143 static void input_osc_104(struct input_ctx *, const char *); 144 static void input_osc_110(struct input_ctx *, const char *); 145 static void input_osc_111(struct input_ctx *, const char *); 146 static void input_osc_112(struct input_ctx *, const char *); 147 static void input_osc_133(struct input_ctx *, const char *); 148 149 /* Transition entry/exit handlers. */ 150 static void input_clear(struct input_ctx *); 151 static void input_ground(struct input_ctx *); 152 static void input_enter_dcs(struct input_ctx *); 153 static void input_enter_osc(struct input_ctx *); 154 static void input_exit_osc(struct input_ctx *); 155 static void input_enter_apc(struct input_ctx *); 156 static void input_exit_apc(struct input_ctx *); 157 static void input_enter_rename(struct input_ctx *); 158 static void input_exit_rename(struct input_ctx *); 159 160 /* Input state handlers. */ 161 static int input_print(struct input_ctx *); 162 static int input_intermediate(struct input_ctx *); 163 static int input_parameter(struct input_ctx *); 164 static int input_input(struct input_ctx *); 165 static int input_c0_dispatch(struct input_ctx *); 166 static int input_esc_dispatch(struct input_ctx *); 167 static int input_csi_dispatch(struct input_ctx *); 168 static void input_csi_dispatch_rm(struct input_ctx *); 169 static void input_csi_dispatch_rm_private(struct input_ctx *); 170 static void input_csi_dispatch_sm(struct input_ctx *); 171 static void input_csi_dispatch_sm_private(struct input_ctx *); 172 static void input_csi_dispatch_sm_graphics(struct input_ctx *); 173 static void input_csi_dispatch_winops(struct input_ctx *); 174 static void input_csi_dispatch_sgr_256(struct input_ctx *, int, u_int *); 175 static void input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *); 176 static void input_csi_dispatch_sgr(struct input_ctx *); 177 static int input_dcs_dispatch(struct input_ctx *); 178 static int input_top_bit_set(struct input_ctx *); 179 static int input_end_bel(struct input_ctx *); 180 181 /* Command table comparison function. */ 182 static int input_table_compare(const void *, const void *); 183 184 /* Command table entry. */ 185 struct input_table_entry { 186 int ch; 187 const char *interm; 188 int type; 189 }; 190 191 /* Escape commands. */ 192 enum input_esc_type { 193 INPUT_ESC_DECALN, 194 INPUT_ESC_DECKPAM, 195 INPUT_ESC_DECKPNM, 196 INPUT_ESC_DECRC, 197 INPUT_ESC_DECSC, 198 INPUT_ESC_HTS, 199 INPUT_ESC_IND, 200 INPUT_ESC_NEL, 201 INPUT_ESC_RI, 202 INPUT_ESC_RIS, 203 INPUT_ESC_SCSG0_OFF, 204 INPUT_ESC_SCSG0_ON, 205 INPUT_ESC_SCSG1_OFF, 206 INPUT_ESC_SCSG1_ON, 207 INPUT_ESC_ST 208 }; 209 210 /* Escape command table. */ 211 static const struct input_table_entry input_esc_table[] = { 212 { '0', "(", INPUT_ESC_SCSG0_ON }, 213 { '0', ")", INPUT_ESC_SCSG1_ON }, 214 { '7', "", INPUT_ESC_DECSC }, 215 { '8', "", INPUT_ESC_DECRC }, 216 { '8', "#", INPUT_ESC_DECALN }, 217 { '=', "", INPUT_ESC_DECKPAM }, 218 { '>', "", INPUT_ESC_DECKPNM }, 219 { 'B', "(", INPUT_ESC_SCSG0_OFF }, 220 { 'B', ")", INPUT_ESC_SCSG1_OFF }, 221 { 'D', "", INPUT_ESC_IND }, 222 { 'E', "", INPUT_ESC_NEL }, 223 { 'H', "", INPUT_ESC_HTS }, 224 { 'M', "", INPUT_ESC_RI }, 225 { '\\', "", INPUT_ESC_ST }, 226 { 'c', "", INPUT_ESC_RIS }, 227 }; 228 229 /* Control (CSI) commands. */ 230 enum input_csi_type { 231 INPUT_CSI_CBT, 232 INPUT_CSI_CNL, 233 INPUT_CSI_CPL, 234 INPUT_CSI_CUB, 235 INPUT_CSI_CUD, 236 INPUT_CSI_CUF, 237 INPUT_CSI_CUP, 238 INPUT_CSI_CUU, 239 INPUT_CSI_DA, 240 INPUT_CSI_DA_TWO, 241 INPUT_CSI_DCH, 242 INPUT_CSI_DECSCUSR, 243 INPUT_CSI_DECSTBM, 244 INPUT_CSI_DL, 245 INPUT_CSI_DSR, 246 INPUT_CSI_ECH, 247 INPUT_CSI_ED, 248 INPUT_CSI_EL, 249 INPUT_CSI_HPA, 250 INPUT_CSI_ICH, 251 INPUT_CSI_IL, 252 INPUT_CSI_MODOFF, 253 INPUT_CSI_MODSET, 254 INPUT_CSI_RCP, 255 INPUT_CSI_REP, 256 INPUT_CSI_RM, 257 INPUT_CSI_RM_PRIVATE, 258 INPUT_CSI_SCP, 259 INPUT_CSI_SD, 260 INPUT_CSI_SGR, 261 INPUT_CSI_SM, 262 INPUT_CSI_SM_PRIVATE, 263 INPUT_CSI_SM_GRAPHICS, 264 INPUT_CSI_SU, 265 INPUT_CSI_TBC, 266 INPUT_CSI_VPA, 267 INPUT_CSI_WINOPS, 268 INPUT_CSI_XDA 269 }; 270 271 /* Control (CSI) command table. */ 272 static const struct input_table_entry input_csi_table[] = { 273 { '@', "", INPUT_CSI_ICH }, 274 { 'A', "", INPUT_CSI_CUU }, 275 { 'B', "", INPUT_CSI_CUD }, 276 { 'C', "", INPUT_CSI_CUF }, 277 { 'D', "", INPUT_CSI_CUB }, 278 { 'E', "", INPUT_CSI_CNL }, 279 { 'F', "", INPUT_CSI_CPL }, 280 { 'G', "", INPUT_CSI_HPA }, 281 { 'H', "", INPUT_CSI_CUP }, 282 { 'J', "", INPUT_CSI_ED }, 283 { 'K', "", INPUT_CSI_EL }, 284 { 'L', "", INPUT_CSI_IL }, 285 { 'M', "", INPUT_CSI_DL }, 286 { 'P', "", INPUT_CSI_DCH }, 287 { 'S', "", INPUT_CSI_SU }, 288 { 'S', "?", INPUT_CSI_SM_GRAPHICS }, 289 { 'T', "", INPUT_CSI_SD }, 290 { 'X', "", INPUT_CSI_ECH }, 291 { 'Z', "", INPUT_CSI_CBT }, 292 { '`', "", INPUT_CSI_HPA }, 293 { 'b', "", INPUT_CSI_REP }, 294 { 'c', "", INPUT_CSI_DA }, 295 { 'c', ">", INPUT_CSI_DA_TWO }, 296 { 'd', "", INPUT_CSI_VPA }, 297 { 'f', "", INPUT_CSI_CUP }, 298 { 'g', "", INPUT_CSI_TBC }, 299 { 'h', "", INPUT_CSI_SM }, 300 { 'h', "?", INPUT_CSI_SM_PRIVATE }, 301 { 'l', "", INPUT_CSI_RM }, 302 { 'l', "?", INPUT_CSI_RM_PRIVATE }, 303 { 'm', "", INPUT_CSI_SGR }, 304 { 'm', ">", INPUT_CSI_MODSET }, 305 { 'n', "", INPUT_CSI_DSR }, 306 { 'n', ">", INPUT_CSI_MODOFF }, 307 { 'q', " ", INPUT_CSI_DECSCUSR }, 308 { 'q', ">", INPUT_CSI_XDA }, 309 { 'r', "", INPUT_CSI_DECSTBM }, 310 { 's', "", INPUT_CSI_SCP }, 311 { 't', "", INPUT_CSI_WINOPS }, 312 { 'u', "", INPUT_CSI_RCP } 313 }; 314 315 /* Input transition. */ 316 struct input_transition { 317 int first; 318 int last; 319 320 int (*handler)(struct input_ctx *); 321 const struct input_state *state; 322 }; 323 324 /* Input state. */ 325 struct input_state { 326 const char *name; 327 void (*enter)(struct input_ctx *); 328 void (*exit)(struct input_ctx *); 329 const struct input_transition *transitions; 330 }; 331 332 /* State transitions available from all states. */ 333 #define INPUT_STATE_ANYWHERE \ 334 { 0x18, 0x18, input_c0_dispatch, &input_state_ground }, \ 335 { 0x1a, 0x1a, input_c0_dispatch, &input_state_ground }, \ 336 { 0x1b, 0x1b, NULL, &input_state_esc_enter } 337 338 /* Forward declarations of state tables. */ 339 static const struct input_transition input_state_ground_table[]; 340 static const struct input_transition input_state_esc_enter_table[]; 341 static const struct input_transition input_state_esc_intermediate_table[]; 342 static const struct input_transition input_state_csi_enter_table[]; 343 static const struct input_transition input_state_csi_parameter_table[]; 344 static const struct input_transition input_state_csi_intermediate_table[]; 345 static const struct input_transition input_state_csi_ignore_table[]; 346 static const struct input_transition input_state_dcs_enter_table[]; 347 static const struct input_transition input_state_dcs_parameter_table[]; 348 static const struct input_transition input_state_dcs_intermediate_table[]; 349 static const struct input_transition input_state_dcs_handler_table[]; 350 static const struct input_transition input_state_dcs_escape_table[]; 351 static const struct input_transition input_state_dcs_ignore_table[]; 352 static const struct input_transition input_state_osc_string_table[]; 353 static const struct input_transition input_state_apc_string_table[]; 354 static const struct input_transition input_state_rename_string_table[]; 355 static const struct input_transition input_state_consume_st_table[]; 356 357 /* ground state definition. */ 358 static const struct input_state input_state_ground = { 359 "ground", 360 input_ground, NULL, 361 input_state_ground_table 362 }; 363 364 /* esc_enter state definition. */ 365 static const struct input_state input_state_esc_enter = { 366 "esc_enter", 367 input_clear, NULL, 368 input_state_esc_enter_table 369 }; 370 371 /* esc_intermediate state definition. */ 372 static const struct input_state input_state_esc_intermediate = { 373 "esc_intermediate", 374 NULL, NULL, 375 input_state_esc_intermediate_table 376 }; 377 378 /* csi_enter state definition. */ 379 static const struct input_state input_state_csi_enter = { 380 "csi_enter", 381 input_clear, NULL, 382 input_state_csi_enter_table 383 }; 384 385 /* csi_parameter state definition. */ 386 static const struct input_state input_state_csi_parameter = { 387 "csi_parameter", 388 NULL, NULL, 389 input_state_csi_parameter_table 390 }; 391 392 /* csi_intermediate state definition. */ 393 static const struct input_state input_state_csi_intermediate = { 394 "csi_intermediate", 395 NULL, NULL, 396 input_state_csi_intermediate_table 397 }; 398 399 /* csi_ignore state definition. */ 400 static const struct input_state input_state_csi_ignore = { 401 "csi_ignore", 402 NULL, NULL, 403 input_state_csi_ignore_table 404 }; 405 406 /* dcs_enter state definition. */ 407 static const struct input_state input_state_dcs_enter = { 408 "dcs_enter", 409 input_enter_dcs, NULL, 410 input_state_dcs_enter_table 411 }; 412 413 /* dcs_parameter state definition. */ 414 static const struct input_state input_state_dcs_parameter = { 415 "dcs_parameter", 416 NULL, NULL, 417 input_state_dcs_parameter_table 418 }; 419 420 /* dcs_intermediate state definition. */ 421 static const struct input_state input_state_dcs_intermediate = { 422 "dcs_intermediate", 423 NULL, NULL, 424 input_state_dcs_intermediate_table 425 }; 426 427 /* dcs_handler state definition. */ 428 static const struct input_state input_state_dcs_handler = { 429 "dcs_handler", 430 NULL, NULL, 431 input_state_dcs_handler_table 432 }; 433 434 /* dcs_escape state definition. */ 435 static const struct input_state input_state_dcs_escape = { 436 "dcs_escape", 437 NULL, NULL, 438 input_state_dcs_escape_table 439 }; 440 441 /* dcs_ignore state definition. */ 442 static const struct input_state input_state_dcs_ignore = { 443 "dcs_ignore", 444 NULL, NULL, 445 input_state_dcs_ignore_table 446 }; 447 448 /* osc_string state definition. */ 449 static const struct input_state input_state_osc_string = { 450 "osc_string", 451 input_enter_osc, input_exit_osc, 452 input_state_osc_string_table 453 }; 454 455 /* apc_string state definition. */ 456 static const struct input_state input_state_apc_string = { 457 "apc_string", 458 input_enter_apc, input_exit_apc, 459 input_state_apc_string_table 460 }; 461 462 /* rename_string state definition. */ 463 static const struct input_state input_state_rename_string = { 464 "rename_string", 465 input_enter_rename, input_exit_rename, 466 input_state_rename_string_table 467 }; 468 469 /* consume_st state definition. */ 470 static const struct input_state input_state_consume_st = { 471 "consume_st", 472 input_enter_rename, NULL, /* rename also waits for ST */ 473 input_state_consume_st_table 474 }; 475 476 /* ground state table. */ 477 static const struct input_transition input_state_ground_table[] = { 478 INPUT_STATE_ANYWHERE, 479 480 { 0x00, 0x17, input_c0_dispatch, NULL }, 481 { 0x19, 0x19, input_c0_dispatch, NULL }, 482 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 483 { 0x20, 0x7e, input_print, NULL }, 484 { 0x7f, 0x7f, NULL, NULL }, 485 { 0x80, 0xff, input_top_bit_set, NULL }, 486 487 { -1, -1, NULL, NULL } 488 }; 489 490 /* esc_enter state table. */ 491 static const struct input_transition input_state_esc_enter_table[] = { 492 INPUT_STATE_ANYWHERE, 493 494 { 0x00, 0x17, input_c0_dispatch, NULL }, 495 { 0x19, 0x19, input_c0_dispatch, NULL }, 496 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 497 { 0x20, 0x2f, input_intermediate, &input_state_esc_intermediate }, 498 { 0x30, 0x4f, input_esc_dispatch, &input_state_ground }, 499 { 0x50, 0x50, NULL, &input_state_dcs_enter }, 500 { 0x51, 0x57, input_esc_dispatch, &input_state_ground }, 501 { 0x58, 0x58, NULL, &input_state_consume_st }, 502 { 0x59, 0x59, input_esc_dispatch, &input_state_ground }, 503 { 0x5a, 0x5a, input_esc_dispatch, &input_state_ground }, 504 { 0x5b, 0x5b, NULL, &input_state_csi_enter }, 505 { 0x5c, 0x5c, input_esc_dispatch, &input_state_ground }, 506 { 0x5d, 0x5d, NULL, &input_state_osc_string }, 507 { 0x5e, 0x5e, NULL, &input_state_consume_st }, 508 { 0x5f, 0x5f, NULL, &input_state_apc_string }, 509 { 0x60, 0x6a, input_esc_dispatch, &input_state_ground }, 510 { 0x6b, 0x6b, NULL, &input_state_rename_string }, 511 { 0x6c, 0x7e, input_esc_dispatch, &input_state_ground }, 512 { 0x7f, 0xff, NULL, NULL }, 513 514 { -1, -1, NULL, NULL } 515 }; 516 517 /* esc_intermediate state table. */ 518 static const struct input_transition input_state_esc_intermediate_table[] = { 519 INPUT_STATE_ANYWHERE, 520 521 { 0x00, 0x17, input_c0_dispatch, NULL }, 522 { 0x19, 0x19, input_c0_dispatch, NULL }, 523 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 524 { 0x20, 0x2f, input_intermediate, NULL }, 525 { 0x30, 0x7e, input_esc_dispatch, &input_state_ground }, 526 { 0x7f, 0xff, NULL, NULL }, 527 528 { -1, -1, NULL, NULL } 529 }; 530 531 /* csi_enter state table. */ 532 static const struct input_transition input_state_csi_enter_table[] = { 533 INPUT_STATE_ANYWHERE, 534 535 { 0x00, 0x17, input_c0_dispatch, NULL }, 536 { 0x19, 0x19, input_c0_dispatch, NULL }, 537 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 538 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 539 { 0x30, 0x39, input_parameter, &input_state_csi_parameter }, 540 { 0x3a, 0x3a, input_parameter, &input_state_csi_parameter }, 541 { 0x3b, 0x3b, input_parameter, &input_state_csi_parameter }, 542 { 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter }, 543 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 544 { 0x7f, 0xff, NULL, NULL }, 545 546 { -1, -1, NULL, NULL } 547 }; 548 549 /* csi_parameter state table. */ 550 static const struct input_transition input_state_csi_parameter_table[] = { 551 INPUT_STATE_ANYWHERE, 552 553 { 0x00, 0x17, input_c0_dispatch, NULL }, 554 { 0x19, 0x19, input_c0_dispatch, NULL }, 555 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 556 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 557 { 0x30, 0x39, input_parameter, NULL }, 558 { 0x3a, 0x3a, input_parameter, NULL }, 559 { 0x3b, 0x3b, input_parameter, NULL }, 560 { 0x3c, 0x3f, NULL, &input_state_csi_ignore }, 561 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 562 { 0x7f, 0xff, NULL, NULL }, 563 564 { -1, -1, NULL, NULL } 565 }; 566 567 /* csi_intermediate state table. */ 568 static const struct input_transition input_state_csi_intermediate_table[] = { 569 INPUT_STATE_ANYWHERE, 570 571 { 0x00, 0x17, input_c0_dispatch, NULL }, 572 { 0x19, 0x19, input_c0_dispatch, NULL }, 573 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 574 { 0x20, 0x2f, input_intermediate, NULL }, 575 { 0x30, 0x3f, NULL, &input_state_csi_ignore }, 576 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 577 { 0x7f, 0xff, NULL, NULL }, 578 579 { -1, -1, NULL, NULL } 580 }; 581 582 /* csi_ignore state table. */ 583 static const struct input_transition input_state_csi_ignore_table[] = { 584 INPUT_STATE_ANYWHERE, 585 586 { 0x00, 0x17, input_c0_dispatch, NULL }, 587 { 0x19, 0x19, input_c0_dispatch, NULL }, 588 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 589 { 0x20, 0x3f, NULL, NULL }, 590 { 0x40, 0x7e, NULL, &input_state_ground }, 591 { 0x7f, 0xff, NULL, NULL }, 592 593 { -1, -1, NULL, NULL } 594 }; 595 596 /* dcs_enter state table. */ 597 static const struct input_transition input_state_dcs_enter_table[] = { 598 INPUT_STATE_ANYWHERE, 599 600 { 0x00, 0x17, NULL, NULL }, 601 { 0x19, 0x19, NULL, NULL }, 602 { 0x1c, 0x1f, NULL, NULL }, 603 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 604 { 0x30, 0x39, input_parameter, &input_state_dcs_parameter }, 605 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 606 { 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter }, 607 { 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter }, 608 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 609 { 0x7f, 0xff, NULL, NULL }, 610 611 { -1, -1, NULL, NULL } 612 }; 613 614 /* dcs_parameter state table. */ 615 static const struct input_transition input_state_dcs_parameter_table[] = { 616 INPUT_STATE_ANYWHERE, 617 618 { 0x00, 0x17, NULL, NULL }, 619 { 0x19, 0x19, NULL, NULL }, 620 { 0x1c, 0x1f, NULL, NULL }, 621 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 622 { 0x30, 0x39, input_parameter, NULL }, 623 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 624 { 0x3b, 0x3b, input_parameter, NULL }, 625 { 0x3c, 0x3f, NULL, &input_state_dcs_ignore }, 626 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 627 { 0x7f, 0xff, NULL, NULL }, 628 629 { -1, -1, NULL, NULL } 630 }; 631 632 /* dcs_intermediate state table. */ 633 static const struct input_transition input_state_dcs_intermediate_table[] = { 634 INPUT_STATE_ANYWHERE, 635 636 { 0x00, 0x17, NULL, NULL }, 637 { 0x19, 0x19, NULL, NULL }, 638 { 0x1c, 0x1f, NULL, NULL }, 639 { 0x20, 0x2f, input_intermediate, NULL }, 640 { 0x30, 0x3f, NULL, &input_state_dcs_ignore }, 641 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 642 { 0x7f, 0xff, NULL, NULL }, 643 644 { -1, -1, NULL, NULL } 645 }; 646 647 /* dcs_handler state table. */ 648 static const struct input_transition input_state_dcs_handler_table[] = { 649 /* No INPUT_STATE_ANYWHERE */ 650 651 { 0x00, 0x1a, input_input, NULL }, 652 { 0x1b, 0x1b, NULL, &input_state_dcs_escape }, 653 { 0x1c, 0xff, input_input, NULL }, 654 655 { -1, -1, NULL, NULL } 656 }; 657 658 /* dcs_escape state table. */ 659 static const struct input_transition input_state_dcs_escape_table[] = { 660 /* No INPUT_STATE_ANYWHERE */ 661 662 { 0x00, 0x5b, input_input, &input_state_dcs_handler }, 663 { 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground }, 664 { 0x5d, 0xff, input_input, &input_state_dcs_handler }, 665 666 { -1, -1, NULL, NULL } 667 }; 668 669 /* dcs_ignore state table. */ 670 static const struct input_transition input_state_dcs_ignore_table[] = { 671 INPUT_STATE_ANYWHERE, 672 673 { 0x00, 0x17, NULL, NULL }, 674 { 0x19, 0x19, NULL, NULL }, 675 { 0x1c, 0x1f, NULL, NULL }, 676 { 0x20, 0xff, NULL, NULL }, 677 678 { -1, -1, NULL, NULL } 679 }; 680 681 /* osc_string state table. */ 682 static const struct input_transition input_state_osc_string_table[] = { 683 INPUT_STATE_ANYWHERE, 684 685 { 0x00, 0x06, NULL, NULL }, 686 { 0x07, 0x07, input_end_bel, &input_state_ground }, 687 { 0x08, 0x17, NULL, NULL }, 688 { 0x19, 0x19, NULL, NULL }, 689 { 0x1c, 0x1f, NULL, NULL }, 690 { 0x20, 0xff, input_input, NULL }, 691 692 { -1, -1, NULL, NULL } 693 }; 694 695 /* apc_string state table. */ 696 static const struct input_transition input_state_apc_string_table[] = { 697 INPUT_STATE_ANYWHERE, 698 699 { 0x00, 0x17, NULL, NULL }, 700 { 0x19, 0x19, NULL, NULL }, 701 { 0x1c, 0x1f, NULL, NULL }, 702 { 0x20, 0xff, input_input, NULL }, 703 704 { -1, -1, NULL, NULL } 705 }; 706 707 /* rename_string state table. */ 708 static const struct input_transition input_state_rename_string_table[] = { 709 INPUT_STATE_ANYWHERE, 710 711 { 0x00, 0x17, NULL, NULL }, 712 { 0x19, 0x19, NULL, NULL }, 713 { 0x1c, 0x1f, NULL, NULL }, 714 { 0x20, 0xff, input_input, NULL }, 715 716 { -1, -1, NULL, NULL } 717 }; 718 719 /* consume_st state table. */ 720 static const struct input_transition input_state_consume_st_table[] = { 721 INPUT_STATE_ANYWHERE, 722 723 { 0x00, 0x17, NULL, NULL }, 724 { 0x19, 0x19, NULL, NULL }, 725 { 0x1c, 0x1f, NULL, NULL }, 726 { 0x20, 0xff, NULL, NULL }, 727 728 { -1, -1, NULL, NULL } 729 }; 730 731 /* Input table compare. */ 732 static int 733 input_table_compare(const void *key, const void *value) 734 { 735 const struct input_ctx *ictx = key; 736 const struct input_table_entry *entry = value; 737 738 if (ictx->ch != entry->ch) 739 return (ictx->ch - entry->ch); 740 return (strcmp((const char *)ictx->interm_buf, entry->interm)); 741 } 742 743 /* 744 * Timer - if this expires then have been waiting for a terminator for too 745 * long, so reset to ground. 746 */ 747 static void 748 input_timer_callback(__unused int fd, __unused short events, void *arg) 749 { 750 struct input_ctx *ictx = arg; 751 752 log_debug("%s: %s expired" , __func__, ictx->state->name); 753 input_reset(ictx, 0); 754 } 755 756 /* Start the timer. */ 757 static void 758 input_start_timer(struct input_ctx *ictx) 759 { 760 struct timeval tv = { .tv_sec = 5, .tv_usec = 0 }; 761 762 event_del(&ictx->timer); 763 event_add(&ictx->timer, &tv); 764 } 765 766 /* Reset cell state to default. */ 767 static void 768 input_reset_cell(struct input_ctx *ictx) 769 { 770 memcpy(&ictx->cell.cell, &grid_default_cell, sizeof ictx->cell.cell); 771 ictx->cell.set = 0; 772 ictx->cell.g0set = ictx->cell.g1set = 0; 773 774 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 775 ictx->old_cx = 0; 776 ictx->old_cy = 0; 777 } 778 779 /* Save screen state. */ 780 static void 781 input_save_state(struct input_ctx *ictx) 782 { 783 struct screen_write_ctx *sctx = &ictx->ctx; 784 struct screen *s = sctx->s; 785 786 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 787 ictx->old_cx = s->cx; 788 ictx->old_cy = s->cy; 789 ictx->old_mode = s->mode; 790 } 791 792 /* Restore screen state. */ 793 static void 794 input_restore_state(struct input_ctx *ictx) 795 { 796 struct screen_write_ctx *sctx = &ictx->ctx; 797 798 memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell); 799 if (ictx->old_mode & MODE_ORIGIN) 800 screen_write_mode_set(sctx, MODE_ORIGIN); 801 else 802 screen_write_mode_clear(sctx, MODE_ORIGIN); 803 screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy, 0); 804 } 805 806 /* Initialise input parser. */ 807 struct input_ctx * 808 input_init(struct window_pane *wp, struct bufferevent *bev, 809 struct colour_palette *palette) 810 { 811 struct input_ctx *ictx; 812 813 ictx = xcalloc(1, sizeof *ictx); 814 ictx->wp = wp; 815 ictx->event = bev; 816 ictx->palette = palette; 817 818 ictx->input_space = INPUT_BUF_START; 819 ictx->input_buf = xmalloc(INPUT_BUF_START); 820 821 ictx->since_ground = evbuffer_new(); 822 if (ictx->since_ground == NULL) 823 fatalx("out of memory"); 824 825 evtimer_set(&ictx->timer, input_timer_callback, ictx); 826 827 input_reset(ictx, 0); 828 return (ictx); 829 } 830 831 /* Destroy input parser. */ 832 void 833 input_free(struct input_ctx *ictx) 834 { 835 u_int i; 836 837 for (i = 0; i < ictx->param_list_len; i++) { 838 if (ictx->param_list[i].type == INPUT_STRING) 839 free(ictx->param_list[i].str); 840 } 841 842 event_del(&ictx->timer); 843 844 free(ictx->input_buf); 845 evbuffer_free(ictx->since_ground); 846 847 free(ictx); 848 } 849 850 /* Reset input state and clear screen. */ 851 void 852 input_reset(struct input_ctx *ictx, int clear) 853 { 854 struct screen_write_ctx *sctx = &ictx->ctx; 855 struct window_pane *wp = ictx->wp; 856 857 input_reset_cell(ictx); 858 859 if (clear && wp != NULL) { 860 if (TAILQ_EMPTY(&wp->modes)) 861 screen_write_start_pane(sctx, wp, &wp->base); 862 else 863 screen_write_start(sctx, &wp->base); 864 screen_write_reset(sctx); 865 screen_write_stop(sctx); 866 } 867 868 input_clear(ictx); 869 870 ictx->last = -1; 871 872 ictx->state = &input_state_ground; 873 ictx->flags = 0; 874 } 875 876 /* Return pending data. */ 877 struct evbuffer * 878 input_pending(struct input_ctx *ictx) 879 { 880 return (ictx->since_ground); 881 } 882 883 /* Change input state. */ 884 static void 885 input_set_state(struct input_ctx *ictx, const struct input_transition *itr) 886 { 887 if (ictx->state->exit != NULL) 888 ictx->state->exit(ictx); 889 ictx->state = itr->state; 890 if (ictx->state->enter != NULL) 891 ictx->state->enter(ictx); 892 } 893 894 /* Parse data. */ 895 static void 896 input_parse(struct input_ctx *ictx, u_char *buf, size_t len) 897 { 898 struct screen_write_ctx *sctx = &ictx->ctx; 899 const struct input_state *state = NULL; 900 const struct input_transition *itr = NULL; 901 size_t off = 0; 902 903 /* Parse the input. */ 904 while (off < len) { 905 ictx->ch = buf[off++]; 906 907 /* Find the transition. */ 908 if (ictx->state != state || 909 itr == NULL || 910 ictx->ch < itr->first || 911 ictx->ch > itr->last) { 912 itr = ictx->state->transitions; 913 while (itr->first != -1 && itr->last != -1) { 914 if (ictx->ch >= itr->first && 915 ictx->ch <= itr->last) 916 break; 917 itr++; 918 } 919 if (itr->first == -1 || itr->last == -1) { 920 /* No transition? Eh? */ 921 fatalx("no transition from state"); 922 } 923 } 924 state = ictx->state; 925 926 /* 927 * Any state except print stops the current collection. This is 928 * an optimization to avoid checking if the attributes have 929 * changed for every character. It will stop unnecessarily for 930 * sequences that don't make a terminal change, but they should 931 * be the minority. 932 */ 933 if (itr->handler != input_print) 934 screen_write_collect_end(sctx); 935 936 /* 937 * Execute the handler, if any. Don't switch state if it 938 * returns non-zero. 939 */ 940 if (itr->handler != NULL && itr->handler(ictx) != 0) 941 continue; 942 943 /* And switch state, if necessary. */ 944 if (itr->state != NULL) 945 input_set_state(ictx, itr); 946 947 /* If not in ground state, save input. */ 948 if (ictx->state != &input_state_ground) 949 evbuffer_add(ictx->since_ground, &ictx->ch, 1); 950 } 951 } 952 953 /* Parse input from pane. */ 954 void 955 input_parse_pane(struct window_pane *wp) 956 { 957 void *new_data; 958 size_t new_size; 959 960 new_data = window_pane_get_new_data(wp, &wp->offset, &new_size); 961 input_parse_buffer(wp, new_data, new_size); 962 window_pane_update_used_data(wp, &wp->offset, new_size); 963 } 964 965 /* Parse given input. */ 966 void 967 input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len) 968 { 969 struct input_ctx *ictx = wp->ictx; 970 struct screen_write_ctx *sctx = &ictx->ctx; 971 972 if (len == 0) 973 return; 974 975 window_update_activity(wp->window); 976 wp->flags |= PANE_CHANGED; 977 978 /* Flag new input while in a mode. */ 979 if (!TAILQ_EMPTY(&wp->modes)) 980 wp->flags |= PANE_UNSEENCHANGES; 981 982 /* NULL wp if there is a mode set as don't want to update the tty. */ 983 if (TAILQ_EMPTY(&wp->modes)) 984 screen_write_start_pane(sctx, wp, &wp->base); 985 else 986 screen_write_start(sctx, &wp->base); 987 988 log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id, 989 ictx->state->name, len, (int)len, buf); 990 991 input_parse(ictx, buf, len); 992 screen_write_stop(sctx); 993 } 994 995 /* Parse given input for screen. */ 996 void 997 input_parse_screen(struct input_ctx *ictx, struct screen *s, 998 screen_write_init_ctx_cb cb, void *arg, u_char *buf, size_t len) 999 { 1000 struct screen_write_ctx *sctx = &ictx->ctx; 1001 1002 if (len == 0) 1003 return; 1004 1005 screen_write_start_callback(sctx, s, cb, arg); 1006 input_parse(ictx, buf, len); 1007 screen_write_stop(sctx); 1008 } 1009 1010 /* Split the parameter list (if any). */ 1011 static int 1012 input_split(struct input_ctx *ictx) 1013 { 1014 const char *errstr; 1015 char *ptr, *out; 1016 struct input_param *ip; 1017 u_int i; 1018 1019 for (i = 0; i < ictx->param_list_len; i++) { 1020 if (ictx->param_list[i].type == INPUT_STRING) 1021 free(ictx->param_list[i].str); 1022 } 1023 ictx->param_list_len = 0; 1024 1025 if (ictx->param_len == 0) 1026 return (0); 1027 ip = &ictx->param_list[0]; 1028 1029 ptr = (char *)ictx->param_buf; 1030 while ((out = strsep(&ptr, ";")) != NULL) { 1031 if (*out == '\0') 1032 ip->type = INPUT_MISSING; 1033 else { 1034 if (strchr(out, ':') != NULL) { 1035 ip->type = INPUT_STRING; 1036 ip->str = xstrdup(out); 1037 } else { 1038 ip->type = INPUT_NUMBER; 1039 ip->num = strtonum(out, 0, INT_MAX, &errstr); 1040 if (errstr != NULL) 1041 return (-1); 1042 } 1043 } 1044 ip = &ictx->param_list[++ictx->param_list_len]; 1045 if (ictx->param_list_len == nitems(ictx->param_list)) 1046 return (-1); 1047 } 1048 1049 for (i = 0; i < ictx->param_list_len; i++) { 1050 ip = &ictx->param_list[i]; 1051 if (ip->type == INPUT_MISSING) 1052 log_debug("parameter %u: missing", i); 1053 else if (ip->type == INPUT_STRING) 1054 log_debug("parameter %u: string %s", i, ip->str); 1055 else if (ip->type == INPUT_NUMBER) 1056 log_debug("parameter %u: number %d", i, ip->num); 1057 } 1058 1059 return (0); 1060 } 1061 1062 /* Get an argument or return default value. */ 1063 static int 1064 input_get(struct input_ctx *ictx, u_int validx, int minval, int defval) 1065 { 1066 struct input_param *ip; 1067 int retval; 1068 1069 if (validx >= ictx->param_list_len) 1070 return (defval); 1071 ip = &ictx->param_list[validx]; 1072 if (ip->type == INPUT_MISSING) 1073 return (defval); 1074 if (ip->type == INPUT_STRING) 1075 return (-1); 1076 retval = ip->num; 1077 if (retval < minval) 1078 return (minval); 1079 return (retval); 1080 } 1081 1082 /* Reply to terminal query. */ 1083 static void 1084 input_reply(struct input_ctx *ictx, const char *fmt, ...) 1085 { 1086 struct bufferevent *bev = ictx->event; 1087 va_list ap; 1088 char *reply; 1089 1090 if (bev == NULL) 1091 return; 1092 1093 va_start(ap, fmt); 1094 xvasprintf(&reply, fmt, ap); 1095 va_end(ap); 1096 1097 log_debug("%s: %s", __func__, reply); 1098 bufferevent_write(bev, reply, strlen(reply)); 1099 free(reply); 1100 } 1101 1102 /* Clear saved state. */ 1103 static void 1104 input_clear(struct input_ctx *ictx) 1105 { 1106 event_del(&ictx->timer); 1107 1108 *ictx->interm_buf = '\0'; 1109 ictx->interm_len = 0; 1110 1111 *ictx->param_buf = '\0'; 1112 ictx->param_len = 0; 1113 1114 *ictx->input_buf = '\0'; 1115 ictx->input_len = 0; 1116 1117 ictx->input_end = INPUT_END_ST; 1118 1119 ictx->flags &= ~INPUT_DISCARD; 1120 } 1121 1122 /* Reset for ground state. */ 1123 static void 1124 input_ground(struct input_ctx *ictx) 1125 { 1126 event_del(&ictx->timer); 1127 evbuffer_drain(ictx->since_ground, EVBUFFER_LENGTH(ictx->since_ground)); 1128 1129 if (ictx->input_space > INPUT_BUF_START) { 1130 ictx->input_space = INPUT_BUF_START; 1131 ictx->input_buf = xrealloc(ictx->input_buf, INPUT_BUF_START); 1132 } 1133 } 1134 1135 /* Output this character to the screen. */ 1136 static int 1137 input_print(struct input_ctx *ictx) 1138 { 1139 struct screen_write_ctx *sctx = &ictx->ctx; 1140 int set; 1141 1142 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1143 1144 set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set; 1145 if (set == 1) 1146 ictx->cell.cell.attr |= GRID_ATTR_CHARSET; 1147 else 1148 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1149 1150 utf8_set(&ictx->cell.cell.data, ictx->ch); 1151 screen_write_collect_add(sctx, &ictx->cell.cell); 1152 ictx->last = ictx->ch; 1153 1154 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1155 1156 return (0); 1157 } 1158 1159 /* Collect intermediate string. */ 1160 static int 1161 input_intermediate(struct input_ctx *ictx) 1162 { 1163 if (ictx->interm_len == (sizeof ictx->interm_buf) - 1) 1164 ictx->flags |= INPUT_DISCARD; 1165 else { 1166 ictx->interm_buf[ictx->interm_len++] = ictx->ch; 1167 ictx->interm_buf[ictx->interm_len] = '\0'; 1168 } 1169 1170 return (0); 1171 } 1172 1173 /* Collect parameter string. */ 1174 static int 1175 input_parameter(struct input_ctx *ictx) 1176 { 1177 if (ictx->param_len == (sizeof ictx->param_buf) - 1) 1178 ictx->flags |= INPUT_DISCARD; 1179 else { 1180 ictx->param_buf[ictx->param_len++] = ictx->ch; 1181 ictx->param_buf[ictx->param_len] = '\0'; 1182 } 1183 1184 return (0); 1185 } 1186 1187 /* Collect input string. */ 1188 static int 1189 input_input(struct input_ctx *ictx) 1190 { 1191 size_t available; 1192 1193 available = ictx->input_space; 1194 while (ictx->input_len + 1 >= available) { 1195 available *= 2; 1196 if (available > INPUT_BUF_LIMIT) { 1197 ictx->flags |= INPUT_DISCARD; 1198 return (0); 1199 } 1200 ictx->input_buf = xrealloc(ictx->input_buf, available); 1201 ictx->input_space = available; 1202 } 1203 ictx->input_buf[ictx->input_len++] = ictx->ch; 1204 ictx->input_buf[ictx->input_len] = '\0'; 1205 1206 return (0); 1207 } 1208 1209 /* Execute C0 control sequence. */ 1210 static int 1211 input_c0_dispatch(struct input_ctx *ictx) 1212 { 1213 struct screen_write_ctx *sctx = &ictx->ctx; 1214 struct window_pane *wp = ictx->wp; 1215 struct screen *s = sctx->s; 1216 1217 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1218 1219 log_debug("%s: '%c'", __func__, ictx->ch); 1220 1221 switch (ictx->ch) { 1222 case '\000': /* NUL */ 1223 break; 1224 case '\007': /* BEL */ 1225 if (wp != NULL) 1226 alerts_queue(wp->window, WINDOW_BELL); 1227 break; 1228 case '\010': /* BS */ 1229 screen_write_backspace(sctx); 1230 break; 1231 case '\011': /* HT */ 1232 /* Don't tab beyond the end of the line. */ 1233 if (s->cx >= screen_size_x(s) - 1) 1234 break; 1235 1236 /* Find the next tab point, or use the last column if none. */ 1237 do { 1238 s->cx++; 1239 if (bit_test(s->tabs, s->cx)) 1240 break; 1241 } while (s->cx < screen_size_x(s) - 1); 1242 break; 1243 case '\012': /* LF */ 1244 case '\013': /* VT */ 1245 case '\014': /* FF */ 1246 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1247 if (s->mode & MODE_CRLF) 1248 screen_write_carriagereturn(sctx); 1249 break; 1250 case '\015': /* CR */ 1251 screen_write_carriagereturn(sctx); 1252 break; 1253 case '\016': /* SO */ 1254 ictx->cell.set = 1; 1255 break; 1256 case '\017': /* SI */ 1257 ictx->cell.set = 0; 1258 break; 1259 default: 1260 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1261 break; 1262 } 1263 1264 ictx->last = -1; 1265 return (0); 1266 } 1267 1268 /* Execute escape sequence. */ 1269 static int 1270 input_esc_dispatch(struct input_ctx *ictx) 1271 { 1272 struct screen_write_ctx *sctx = &ictx->ctx; 1273 struct screen *s = sctx->s; 1274 struct input_table_entry *entry; 1275 1276 if (ictx->flags & INPUT_DISCARD) 1277 return (0); 1278 log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf); 1279 1280 entry = bsearch(ictx, input_esc_table, nitems(input_esc_table), 1281 sizeof input_esc_table[0], input_table_compare); 1282 if (entry == NULL) { 1283 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1284 return (0); 1285 } 1286 1287 switch (entry->type) { 1288 case INPUT_ESC_RIS: 1289 colour_palette_clear(ictx->palette); 1290 input_reset_cell(ictx); 1291 screen_write_reset(sctx); 1292 screen_write_fullredraw(sctx); 1293 break; 1294 case INPUT_ESC_IND: 1295 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1296 break; 1297 case INPUT_ESC_NEL: 1298 screen_write_carriagereturn(sctx); 1299 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1300 break; 1301 case INPUT_ESC_HTS: 1302 if (s->cx < screen_size_x(s)) 1303 bit_set(s->tabs, s->cx); 1304 break; 1305 case INPUT_ESC_RI: 1306 screen_write_reverseindex(sctx, ictx->cell.cell.bg); 1307 break; 1308 case INPUT_ESC_DECKPAM: 1309 screen_write_mode_set(sctx, MODE_KKEYPAD); 1310 break; 1311 case INPUT_ESC_DECKPNM: 1312 screen_write_mode_clear(sctx, MODE_KKEYPAD); 1313 break; 1314 case INPUT_ESC_DECSC: 1315 input_save_state(ictx); 1316 break; 1317 case INPUT_ESC_DECRC: 1318 input_restore_state(ictx); 1319 break; 1320 case INPUT_ESC_DECALN: 1321 screen_write_alignmenttest(sctx); 1322 break; 1323 case INPUT_ESC_SCSG0_ON: 1324 ictx->cell.g0set = 1; 1325 break; 1326 case INPUT_ESC_SCSG0_OFF: 1327 ictx->cell.g0set = 0; 1328 break; 1329 case INPUT_ESC_SCSG1_ON: 1330 ictx->cell.g1set = 1; 1331 break; 1332 case INPUT_ESC_SCSG1_OFF: 1333 ictx->cell.g1set = 0; 1334 break; 1335 case INPUT_ESC_ST: 1336 /* ST terminates OSC but the state transition already did it. */ 1337 break; 1338 } 1339 1340 ictx->last = -1; 1341 return (0); 1342 } 1343 1344 /* Execute control sequence. */ 1345 static int 1346 input_csi_dispatch(struct input_ctx *ictx) 1347 { 1348 struct screen_write_ctx *sctx = &ictx->ctx; 1349 struct screen *s = sctx->s; 1350 struct input_table_entry *entry; 1351 int i, n, m; 1352 u_int cx, bg = ictx->cell.cell.bg; 1353 1354 if (ictx->flags & INPUT_DISCARD) 1355 return (0); 1356 1357 log_debug("%s: '%c' \"%s\" \"%s\"", __func__, ictx->ch, 1358 ictx->interm_buf, ictx->param_buf); 1359 1360 if (input_split(ictx) != 0) 1361 return (0); 1362 1363 entry = bsearch(ictx, input_csi_table, nitems(input_csi_table), 1364 sizeof input_csi_table[0], input_table_compare); 1365 if (entry == NULL) { 1366 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1367 return (0); 1368 } 1369 1370 switch (entry->type) { 1371 case INPUT_CSI_CBT: 1372 /* Find the previous tab point, n times. */ 1373 cx = s->cx; 1374 if (cx > screen_size_x(s) - 1) 1375 cx = screen_size_x(s) - 1; 1376 n = input_get(ictx, 0, 1, 1); 1377 if (n == -1) 1378 break; 1379 while (cx > 0 && n-- > 0) { 1380 do 1381 cx--; 1382 while (cx > 0 && !bit_test(s->tabs, cx)); 1383 } 1384 s->cx = cx; 1385 break; 1386 case INPUT_CSI_CUB: 1387 n = input_get(ictx, 0, 1, 1); 1388 if (n != -1) 1389 screen_write_cursorleft(sctx, n); 1390 break; 1391 case INPUT_CSI_CUD: 1392 n = input_get(ictx, 0, 1, 1); 1393 if (n != -1) 1394 screen_write_cursordown(sctx, n); 1395 break; 1396 case INPUT_CSI_CUF: 1397 n = input_get(ictx, 0, 1, 1); 1398 if (n != -1) 1399 screen_write_cursorright(sctx, n); 1400 break; 1401 case INPUT_CSI_CUP: 1402 n = input_get(ictx, 0, 1, 1); 1403 m = input_get(ictx, 1, 1, 1); 1404 if (n != -1 && m != -1) 1405 screen_write_cursormove(sctx, m - 1, n - 1, 1); 1406 break; 1407 case INPUT_CSI_MODSET: 1408 n = input_get(ictx, 0, 0, 0); 1409 m = input_get(ictx, 1, 0, 0); 1410 if (options_get_number(global_options, "extended-keys") == 2) 1411 break; 1412 if (n == 0 || (n == 4 && m == 0)) 1413 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1414 else if (n == 4 && (m == 1 || m == 2)) 1415 screen_write_mode_set(sctx, MODE_KEXTENDED); 1416 break; 1417 case INPUT_CSI_MODOFF: 1418 n = input_get(ictx, 0, 0, 0); 1419 if (n == 4) 1420 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1421 break; 1422 case INPUT_CSI_WINOPS: 1423 input_csi_dispatch_winops(ictx); 1424 break; 1425 case INPUT_CSI_CUU: 1426 n = input_get(ictx, 0, 1, 1); 1427 if (n != -1) 1428 screen_write_cursorup(sctx, n); 1429 break; 1430 case INPUT_CSI_CNL: 1431 n = input_get(ictx, 0, 1, 1); 1432 if (n != -1) { 1433 screen_write_carriagereturn(sctx); 1434 screen_write_cursordown(sctx, n); 1435 } 1436 break; 1437 case INPUT_CSI_CPL: 1438 n = input_get(ictx, 0, 1, 1); 1439 if (n != -1) { 1440 screen_write_carriagereturn(sctx); 1441 screen_write_cursorup(sctx, n); 1442 } 1443 break; 1444 case INPUT_CSI_DA: 1445 switch (input_get(ictx, 0, 0, 0)) { 1446 case -1: 1447 break; 1448 case 0: 1449 #ifdef ENABLE_SIXEL 1450 input_reply(ictx, "\033[?1;2;4c"); 1451 #else 1452 input_reply(ictx, "\033[?1;2c"); 1453 #endif 1454 break; 1455 default: 1456 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1457 break; 1458 } 1459 break; 1460 case INPUT_CSI_DA_TWO: 1461 switch (input_get(ictx, 0, 0, 0)) { 1462 case -1: 1463 break; 1464 case 0: 1465 input_reply(ictx, "\033[>84;0;0c"); 1466 break; 1467 default: 1468 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1469 break; 1470 } 1471 break; 1472 case INPUT_CSI_ECH: 1473 n = input_get(ictx, 0, 1, 1); 1474 if (n != -1) 1475 screen_write_clearcharacter(sctx, n, bg); 1476 break; 1477 case INPUT_CSI_DCH: 1478 n = input_get(ictx, 0, 1, 1); 1479 if (n != -1) 1480 screen_write_deletecharacter(sctx, n, bg); 1481 break; 1482 case INPUT_CSI_DECSTBM: 1483 n = input_get(ictx, 0, 1, 1); 1484 m = input_get(ictx, 1, 1, screen_size_y(s)); 1485 if (n != -1 && m != -1) 1486 screen_write_scrollregion(sctx, n - 1, m - 1); 1487 break; 1488 case INPUT_CSI_DL: 1489 n = input_get(ictx, 0, 1, 1); 1490 if (n != -1) 1491 screen_write_deleteline(sctx, n, bg); 1492 break; 1493 case INPUT_CSI_DSR: 1494 switch (input_get(ictx, 0, 0, 0)) { 1495 case -1: 1496 break; 1497 case 5: 1498 input_reply(ictx, "\033[0n"); 1499 break; 1500 case 6: 1501 input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1); 1502 break; 1503 default: 1504 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1505 break; 1506 } 1507 break; 1508 case INPUT_CSI_ED: 1509 switch (input_get(ictx, 0, 0, 0)) { 1510 case -1: 1511 break; 1512 case 0: 1513 screen_write_clearendofscreen(sctx, bg); 1514 break; 1515 case 1: 1516 screen_write_clearstartofscreen(sctx, bg); 1517 break; 1518 case 2: 1519 screen_write_clearscreen(sctx, bg); 1520 break; 1521 case 3: 1522 if (input_get(ictx, 1, 0, 0) == 0) { 1523 /* 1524 * Linux console extension to clear history 1525 * (for example before locking the screen). 1526 */ 1527 screen_write_clearhistory(sctx); 1528 } 1529 break; 1530 default: 1531 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1532 break; 1533 } 1534 break; 1535 case INPUT_CSI_EL: 1536 switch (input_get(ictx, 0, 0, 0)) { 1537 case -1: 1538 break; 1539 case 0: 1540 screen_write_clearendofline(sctx, bg); 1541 break; 1542 case 1: 1543 screen_write_clearstartofline(sctx, bg); 1544 break; 1545 case 2: 1546 screen_write_clearline(sctx, bg); 1547 break; 1548 default: 1549 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1550 break; 1551 } 1552 break; 1553 case INPUT_CSI_HPA: 1554 n = input_get(ictx, 0, 1, 1); 1555 if (n != -1) 1556 screen_write_cursormove(sctx, n - 1, -1, 1); 1557 break; 1558 case INPUT_CSI_ICH: 1559 n = input_get(ictx, 0, 1, 1); 1560 if (n != -1) 1561 screen_write_insertcharacter(sctx, n, bg); 1562 break; 1563 case INPUT_CSI_IL: 1564 n = input_get(ictx, 0, 1, 1); 1565 if (n != -1) 1566 screen_write_insertline(sctx, n, bg); 1567 break; 1568 case INPUT_CSI_REP: 1569 n = input_get(ictx, 0, 1, 1); 1570 if (n == -1) 1571 break; 1572 1573 m = screen_size_x(s) - s->cx; 1574 if (n > m) 1575 n = m; 1576 1577 if (ictx->last == -1) 1578 break; 1579 ictx->ch = ictx->last; 1580 1581 for (i = 0; i < n; i++) 1582 input_print(ictx); 1583 break; 1584 case INPUT_CSI_RCP: 1585 input_restore_state(ictx); 1586 break; 1587 case INPUT_CSI_RM: 1588 input_csi_dispatch_rm(ictx); 1589 break; 1590 case INPUT_CSI_RM_PRIVATE: 1591 input_csi_dispatch_rm_private(ictx); 1592 break; 1593 case INPUT_CSI_SCP: 1594 input_save_state(ictx); 1595 break; 1596 case INPUT_CSI_SGR: 1597 input_csi_dispatch_sgr(ictx); 1598 break; 1599 case INPUT_CSI_SM: 1600 input_csi_dispatch_sm(ictx); 1601 break; 1602 case INPUT_CSI_SM_PRIVATE: 1603 input_csi_dispatch_sm_private(ictx); 1604 break; 1605 case INPUT_CSI_SM_GRAPHICS: 1606 input_csi_dispatch_sm_graphics(ictx); 1607 break; 1608 case INPUT_CSI_SU: 1609 n = input_get(ictx, 0, 1, 1); 1610 if (n != -1) 1611 screen_write_scrollup(sctx, n, bg); 1612 break; 1613 case INPUT_CSI_SD: 1614 n = input_get(ictx, 0, 1, 1); 1615 if (n != -1) 1616 screen_write_scrolldown(sctx, n, bg); 1617 break; 1618 case INPUT_CSI_TBC: 1619 switch (input_get(ictx, 0, 0, 0)) { 1620 case -1: 1621 break; 1622 case 0: 1623 if (s->cx < screen_size_x(s)) 1624 bit_clear(s->tabs, s->cx); 1625 break; 1626 case 3: 1627 bit_nclear(s->tabs, 0, screen_size_x(s) - 1); 1628 break; 1629 default: 1630 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1631 break; 1632 } 1633 break; 1634 case INPUT_CSI_VPA: 1635 n = input_get(ictx, 0, 1, 1); 1636 if (n != -1) 1637 screen_write_cursormove(sctx, -1, n - 1, 1); 1638 break; 1639 case INPUT_CSI_DECSCUSR: 1640 n = input_get(ictx, 0, 0, 0); 1641 if (n != -1) 1642 screen_set_cursor_style(n, &s->cstyle, &s->mode); 1643 break; 1644 case INPUT_CSI_XDA: 1645 n = input_get(ictx, 0, 0, 0); 1646 if (n == 0) 1647 input_reply(ictx, "\033P>|tmux %s\033\\", getversion()); 1648 break; 1649 1650 } 1651 1652 ictx->last = -1; 1653 return (0); 1654 } 1655 1656 /* Handle CSI RM. */ 1657 static void 1658 input_csi_dispatch_rm(struct input_ctx *ictx) 1659 { 1660 struct screen_write_ctx *sctx = &ictx->ctx; 1661 u_int i; 1662 1663 for (i = 0; i < ictx->param_list_len; i++) { 1664 switch (input_get(ictx, i, 0, -1)) { 1665 case -1: 1666 break; 1667 case 4: /* IRM */ 1668 screen_write_mode_clear(sctx, MODE_INSERT); 1669 break; 1670 case 34: 1671 screen_write_mode_set(sctx, MODE_CURSOR_VERY_VISIBLE); 1672 break; 1673 default: 1674 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1675 break; 1676 } 1677 } 1678 } 1679 1680 /* Handle CSI private RM. */ 1681 static void 1682 input_csi_dispatch_rm_private(struct input_ctx *ictx) 1683 { 1684 struct screen_write_ctx *sctx = &ictx->ctx; 1685 struct grid_cell *gc = &ictx->cell.cell; 1686 u_int i; 1687 1688 for (i = 0; i < ictx->param_list_len; i++) { 1689 switch (input_get(ictx, i, 0, -1)) { 1690 case -1: 1691 break; 1692 case 1: /* DECCKM */ 1693 screen_write_mode_clear(sctx, MODE_KCURSOR); 1694 break; 1695 case 3: /* DECCOLM */ 1696 screen_write_cursormove(sctx, 0, 0, 1); 1697 screen_write_clearscreen(sctx, gc->bg); 1698 break; 1699 case 6: /* DECOM */ 1700 screen_write_mode_clear(sctx, MODE_ORIGIN); 1701 screen_write_cursormove(sctx, 0, 0, 1); 1702 break; 1703 case 7: /* DECAWM */ 1704 screen_write_mode_clear(sctx, MODE_WRAP); 1705 break; 1706 case 12: 1707 screen_write_mode_clear(sctx, MODE_CURSOR_BLINKING); 1708 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1709 break; 1710 case 25: /* TCEM */ 1711 screen_write_mode_clear(sctx, MODE_CURSOR); 1712 break; 1713 case 1000: 1714 case 1001: 1715 case 1002: 1716 case 1003: 1717 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1718 break; 1719 case 1004: 1720 screen_write_mode_clear(sctx, MODE_FOCUSON); 1721 break; 1722 case 1005: 1723 screen_write_mode_clear(sctx, MODE_MOUSE_UTF8); 1724 break; 1725 case 1006: 1726 screen_write_mode_clear(sctx, MODE_MOUSE_SGR); 1727 break; 1728 case 47: 1729 case 1047: 1730 screen_write_alternateoff(sctx, gc, 0); 1731 break; 1732 case 1049: 1733 screen_write_alternateoff(sctx, gc, 1); 1734 break; 1735 case 2004: 1736 screen_write_mode_clear(sctx, MODE_BRACKETPASTE); 1737 break; 1738 default: 1739 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1740 break; 1741 } 1742 } 1743 } 1744 1745 /* Handle CSI SM. */ 1746 static void 1747 input_csi_dispatch_sm(struct input_ctx *ictx) 1748 { 1749 struct screen_write_ctx *sctx = &ictx->ctx; 1750 u_int i; 1751 1752 for (i = 0; i < ictx->param_list_len; i++) { 1753 switch (input_get(ictx, i, 0, -1)) { 1754 case -1: 1755 break; 1756 case 4: /* IRM */ 1757 screen_write_mode_set(sctx, MODE_INSERT); 1758 break; 1759 case 34: 1760 screen_write_mode_clear(sctx, MODE_CURSOR_VERY_VISIBLE); 1761 break; 1762 default: 1763 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1764 break; 1765 } 1766 } 1767 } 1768 1769 /* Handle CSI private SM. */ 1770 static void 1771 input_csi_dispatch_sm_private(struct input_ctx *ictx) 1772 { 1773 struct screen_write_ctx *sctx = &ictx->ctx; 1774 struct grid_cell *gc = &ictx->cell.cell; 1775 u_int i; 1776 1777 for (i = 0; i < ictx->param_list_len; i++) { 1778 switch (input_get(ictx, i, 0, -1)) { 1779 case -1: 1780 break; 1781 case 1: /* DECCKM */ 1782 screen_write_mode_set(sctx, MODE_KCURSOR); 1783 break; 1784 case 3: /* DECCOLM */ 1785 screen_write_cursormove(sctx, 0, 0, 1); 1786 screen_write_clearscreen(sctx, ictx->cell.cell.bg); 1787 break; 1788 case 6: /* DECOM */ 1789 screen_write_mode_set(sctx, MODE_ORIGIN); 1790 screen_write_cursormove(sctx, 0, 0, 1); 1791 break; 1792 case 7: /* DECAWM */ 1793 screen_write_mode_set(sctx, MODE_WRAP); 1794 break; 1795 case 12: 1796 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING); 1797 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1798 break; 1799 case 25: /* TCEM */ 1800 screen_write_mode_set(sctx, MODE_CURSOR); 1801 break; 1802 case 1000: 1803 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1804 screen_write_mode_set(sctx, MODE_MOUSE_STANDARD); 1805 break; 1806 case 1002: 1807 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1808 screen_write_mode_set(sctx, MODE_MOUSE_BUTTON); 1809 break; 1810 case 1003: 1811 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1812 screen_write_mode_set(sctx, MODE_MOUSE_ALL); 1813 break; 1814 case 1004: 1815 screen_write_mode_set(sctx, MODE_FOCUSON); 1816 break; 1817 case 1005: 1818 screen_write_mode_set(sctx, MODE_MOUSE_UTF8); 1819 break; 1820 case 1006: 1821 screen_write_mode_set(sctx, MODE_MOUSE_SGR); 1822 break; 1823 case 47: 1824 case 1047: 1825 screen_write_alternateon(sctx, gc, 0); 1826 break; 1827 case 1049: 1828 screen_write_alternateon(sctx, gc, 1); 1829 break; 1830 case 2004: 1831 screen_write_mode_set(sctx, MODE_BRACKETPASTE); 1832 break; 1833 default: 1834 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1835 break; 1836 } 1837 } 1838 } 1839 1840 /* Handle CSI graphics SM. */ 1841 static void 1842 input_csi_dispatch_sm_graphics(struct input_ctx *ictx) 1843 { 1844 #ifdef ENABLE_SIXEL 1845 int n, m, o; 1846 1847 if (ictx->param_list_len > 3) 1848 return; 1849 n = input_get(ictx, 0, 0, 0); 1850 m = input_get(ictx, 1, 0, 0); 1851 o = input_get(ictx, 2, 0, 0); 1852 1853 if (n == 1 && (m == 1 || m == 2 || m == 4)) 1854 input_reply(ictx, "\033[?%d;0;%uS", n, SIXEL_COLOUR_REGISTERS); 1855 else 1856 input_reply(ictx, "\033[?%d;3;%dS", n, o); 1857 #endif 1858 } 1859 1860 /* Handle CSI window operations. */ 1861 static void 1862 input_csi_dispatch_winops(struct input_ctx *ictx) 1863 { 1864 struct screen_write_ctx *sctx = &ictx->ctx; 1865 struct screen *s = sctx->s; 1866 struct window_pane *wp = ictx->wp; 1867 struct window *w = NULL; 1868 u_int x = screen_size_x(s), y = screen_size_y(s); 1869 int n, m; 1870 1871 if (wp != NULL) 1872 w = wp->window; 1873 1874 m = 0; 1875 while ((n = input_get(ictx, m, 0, -1)) != -1) { 1876 switch (n) { 1877 case 1: 1878 case 2: 1879 case 5: 1880 case 6: 1881 case 7: 1882 case 11: 1883 case 13: 1884 case 20: 1885 case 21: 1886 case 24: 1887 break; 1888 case 3: 1889 case 4: 1890 case 8: 1891 m++; 1892 if (input_get(ictx, m, 0, -1) == -1) 1893 return; 1894 /* FALLTHROUGH */ 1895 case 9: 1896 case 10: 1897 m++; 1898 if (input_get(ictx, m, 0, -1) == -1) 1899 return; 1900 break; 1901 case 14: 1902 if (w == NULL) 1903 break; 1904 input_reply(ictx, "\033[4;%u;%ut", y * w->ypixel, 1905 x * w->xpixel); 1906 break; 1907 case 15: 1908 if (w == NULL) 1909 break; 1910 input_reply(ictx, "\033[5;%u;%ut", y * w->ypixel, 1911 x * w->xpixel); 1912 break; 1913 case 16: 1914 if (w == NULL) 1915 break; 1916 input_reply(ictx, "\033[6;%u;%ut", w->ypixel, 1917 w->xpixel); 1918 break; 1919 case 18: 1920 input_reply(ictx, "\033[8;%u;%ut", y, x); 1921 break; 1922 case 19: 1923 input_reply(ictx, "\033[9;%u;%ut", y, x); 1924 break; 1925 case 22: 1926 m++; 1927 switch (input_get(ictx, m, 0, -1)) { 1928 case -1: 1929 return; 1930 case 0: 1931 case 2: 1932 screen_push_title(sctx->s); 1933 break; 1934 } 1935 break; 1936 case 23: 1937 m++; 1938 switch (input_get(ictx, m, 0, -1)) { 1939 case -1: 1940 return; 1941 case 0: 1942 case 2: 1943 screen_pop_title(sctx->s); 1944 if (wp == NULL) 1945 break; 1946 notify_pane("pane-title-changed", wp); 1947 server_redraw_window_borders(w); 1948 server_status_window(w); 1949 break; 1950 } 1951 break; 1952 default: 1953 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1954 break; 1955 } 1956 m++; 1957 } 1958 } 1959 1960 /* Helper for 256 colour SGR. */ 1961 static int 1962 input_csi_dispatch_sgr_256_do(struct input_ctx *ictx, int fgbg, int c) 1963 { 1964 struct grid_cell *gc = &ictx->cell.cell; 1965 1966 if (c == -1 || c > 255) { 1967 if (fgbg == 38) 1968 gc->fg = 8; 1969 else if (fgbg == 48) 1970 gc->bg = 8; 1971 } else { 1972 if (fgbg == 38) 1973 gc->fg = c | COLOUR_FLAG_256; 1974 else if (fgbg == 48) 1975 gc->bg = c | COLOUR_FLAG_256; 1976 else if (fgbg == 58) 1977 gc->us = c | COLOUR_FLAG_256; 1978 } 1979 return (1); 1980 } 1981 1982 /* Handle CSI SGR for 256 colours. */ 1983 static void 1984 input_csi_dispatch_sgr_256(struct input_ctx *ictx, int fgbg, u_int *i) 1985 { 1986 int c; 1987 1988 c = input_get(ictx, (*i) + 1, 0, -1); 1989 if (input_csi_dispatch_sgr_256_do(ictx, fgbg, c)) 1990 (*i)++; 1991 } 1992 1993 /* Helper for RGB colour SGR. */ 1994 static int 1995 input_csi_dispatch_sgr_rgb_do(struct input_ctx *ictx, int fgbg, int r, int g, 1996 int b) 1997 { 1998 struct grid_cell *gc = &ictx->cell.cell; 1999 2000 if (r == -1 || r > 255) 2001 return (0); 2002 if (g == -1 || g > 255) 2003 return (0); 2004 if (b == -1 || b > 255) 2005 return (0); 2006 2007 if (fgbg == 38) 2008 gc->fg = colour_join_rgb(r, g, b); 2009 else if (fgbg == 48) 2010 gc->bg = colour_join_rgb(r, g, b); 2011 else if (fgbg == 58) 2012 gc->us = colour_join_rgb(r, g, b); 2013 return (1); 2014 } 2015 2016 /* Handle CSI SGR for RGB colours. */ 2017 static void 2018 input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i) 2019 { 2020 int r, g, b; 2021 2022 r = input_get(ictx, (*i) + 1, 0, -1); 2023 g = input_get(ictx, (*i) + 2, 0, -1); 2024 b = input_get(ictx, (*i) + 3, 0, -1); 2025 if (input_csi_dispatch_sgr_rgb_do(ictx, fgbg, r, g, b)) 2026 (*i) += 3; 2027 } 2028 2029 /* Handle CSI SGR with a ISO parameter. */ 2030 static void 2031 input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i) 2032 { 2033 struct grid_cell *gc = &ictx->cell.cell; 2034 char *s = ictx->param_list[i].str, *copy, *ptr, *out; 2035 int p[8]; 2036 u_int n; 2037 const char *errstr; 2038 2039 for (n = 0; n < nitems(p); n++) 2040 p[n] = -1; 2041 n = 0; 2042 2043 ptr = copy = xstrdup(s); 2044 while ((out = strsep(&ptr, ":")) != NULL) { 2045 if (*out != '\0') { 2046 p[n++] = strtonum(out, 0, INT_MAX, &errstr); 2047 if (errstr != NULL || n == nitems(p)) { 2048 free(copy); 2049 return; 2050 } 2051 } else { 2052 n++; 2053 if (n == nitems(p)) { 2054 free(copy); 2055 return; 2056 } 2057 } 2058 log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]); 2059 } 2060 free(copy); 2061 2062 if (n == 0) 2063 return; 2064 if (p[0] == 4) { 2065 if (n != 2) 2066 return; 2067 switch (p[1]) { 2068 case 0: 2069 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2070 break; 2071 case 1: 2072 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2073 gc->attr |= GRID_ATTR_UNDERSCORE; 2074 break; 2075 case 2: 2076 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2077 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2078 break; 2079 case 3: 2080 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2081 gc->attr |= GRID_ATTR_UNDERSCORE_3; 2082 break; 2083 case 4: 2084 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2085 gc->attr |= GRID_ATTR_UNDERSCORE_4; 2086 break; 2087 case 5: 2088 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2089 gc->attr |= GRID_ATTR_UNDERSCORE_5; 2090 break; 2091 } 2092 return; 2093 } 2094 if (n < 2 || (p[0] != 38 && p[0] != 48 && p[0] != 58)) 2095 return; 2096 switch (p[1]) { 2097 case 2: 2098 if (n < 3) 2099 break; 2100 if (n == 5) 2101 i = 2; 2102 else 2103 i = 3; 2104 if (n < i + 3) 2105 break; 2106 input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i], p[i + 1], 2107 p[i + 2]); 2108 break; 2109 case 5: 2110 if (n < 3) 2111 break; 2112 input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]); 2113 break; 2114 } 2115 } 2116 2117 /* Handle CSI SGR. */ 2118 static void 2119 input_csi_dispatch_sgr(struct input_ctx *ictx) 2120 { 2121 struct grid_cell *gc = &ictx->cell.cell; 2122 u_int i, link; 2123 int n; 2124 2125 if (ictx->param_list_len == 0) { 2126 memcpy(gc, &grid_default_cell, sizeof *gc); 2127 return; 2128 } 2129 2130 for (i = 0; i < ictx->param_list_len; i++) { 2131 if (ictx->param_list[i].type == INPUT_STRING) { 2132 input_csi_dispatch_sgr_colon(ictx, i); 2133 continue; 2134 } 2135 n = input_get(ictx, i, 0, 0); 2136 if (n == -1) 2137 continue; 2138 2139 if (n == 38 || n == 48 || n == 58) { 2140 i++; 2141 switch (input_get(ictx, i, 0, -1)) { 2142 case 2: 2143 input_csi_dispatch_sgr_rgb(ictx, n, &i); 2144 break; 2145 case 5: 2146 input_csi_dispatch_sgr_256(ictx, n, &i); 2147 break; 2148 } 2149 continue; 2150 } 2151 2152 switch (n) { 2153 case 0: 2154 link = gc->link; 2155 memcpy(gc, &grid_default_cell, sizeof *gc); 2156 gc->link = link; 2157 break; 2158 case 1: 2159 gc->attr |= GRID_ATTR_BRIGHT; 2160 break; 2161 case 2: 2162 gc->attr |= GRID_ATTR_DIM; 2163 break; 2164 case 3: 2165 gc->attr |= GRID_ATTR_ITALICS; 2166 break; 2167 case 4: 2168 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2169 gc->attr |= GRID_ATTR_UNDERSCORE; 2170 break; 2171 case 5: 2172 case 6: 2173 gc->attr |= GRID_ATTR_BLINK; 2174 break; 2175 case 7: 2176 gc->attr |= GRID_ATTR_REVERSE; 2177 break; 2178 case 8: 2179 gc->attr |= GRID_ATTR_HIDDEN; 2180 break; 2181 case 9: 2182 gc->attr |= GRID_ATTR_STRIKETHROUGH; 2183 break; 2184 case 21: 2185 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2186 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2187 break; 2188 case 22: 2189 gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM); 2190 break; 2191 case 23: 2192 gc->attr &= ~GRID_ATTR_ITALICS; 2193 break; 2194 case 24: 2195 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2196 break; 2197 case 25: 2198 gc->attr &= ~GRID_ATTR_BLINK; 2199 break; 2200 case 27: 2201 gc->attr &= ~GRID_ATTR_REVERSE; 2202 break; 2203 case 28: 2204 gc->attr &= ~GRID_ATTR_HIDDEN; 2205 break; 2206 case 29: 2207 gc->attr &= ~GRID_ATTR_STRIKETHROUGH; 2208 break; 2209 case 30: 2210 case 31: 2211 case 32: 2212 case 33: 2213 case 34: 2214 case 35: 2215 case 36: 2216 case 37: 2217 gc->fg = n - 30; 2218 break; 2219 case 39: 2220 gc->fg = 8; 2221 break; 2222 case 40: 2223 case 41: 2224 case 42: 2225 case 43: 2226 case 44: 2227 case 45: 2228 case 46: 2229 case 47: 2230 gc->bg = n - 40; 2231 break; 2232 case 49: 2233 gc->bg = 8; 2234 break; 2235 case 53: 2236 gc->attr |= GRID_ATTR_OVERLINE; 2237 break; 2238 case 55: 2239 gc->attr &= ~GRID_ATTR_OVERLINE; 2240 break; 2241 case 59: 2242 gc->us = 8; 2243 break; 2244 case 90: 2245 case 91: 2246 case 92: 2247 case 93: 2248 case 94: 2249 case 95: 2250 case 96: 2251 case 97: 2252 gc->fg = n; 2253 break; 2254 case 100: 2255 case 101: 2256 case 102: 2257 case 103: 2258 case 104: 2259 case 105: 2260 case 106: 2261 case 107: 2262 gc->bg = n - 10; 2263 break; 2264 } 2265 } 2266 } 2267 2268 /* End of input with BEL. */ 2269 static int 2270 input_end_bel(struct input_ctx *ictx) 2271 { 2272 log_debug("%s", __func__); 2273 2274 ictx->input_end = INPUT_END_BEL; 2275 2276 return (0); 2277 } 2278 2279 /* DCS string started. */ 2280 static void 2281 input_enter_dcs(struct input_ctx *ictx) 2282 { 2283 log_debug("%s", __func__); 2284 2285 input_clear(ictx); 2286 input_start_timer(ictx); 2287 ictx->last = -1; 2288 } 2289 2290 /* DCS terminator (ST) received. */ 2291 static int 2292 input_dcs_dispatch(struct input_ctx *ictx) 2293 { 2294 struct window_pane *wp = ictx->wp; 2295 struct screen_write_ctx *sctx = &ictx->ctx; 2296 char *buf = (char *)ictx->input_buf; 2297 size_t len = ictx->input_len; 2298 const char prefix[] = "tmux;"; 2299 const u_int prefixlen = (sizeof prefix) - 1; 2300 long long allow_passthrough = 0; 2301 #ifdef ENABLE_SIXEL 2302 struct window *w; 2303 struct sixel_image *si; 2304 #endif 2305 2306 if (wp == NULL) 2307 return (0); 2308 2309 if (ictx->flags & INPUT_DISCARD) { 2310 log_debug("%s: %zu bytes (discard)", __func__, len); 2311 return (0); 2312 } 2313 2314 #ifdef ENABLE_SIXEL 2315 w = wp->window; 2316 if (buf[0] == 'q') { 2317 si = sixel_parse(buf, len, w->xpixel, w->ypixel); 2318 if (si != NULL) 2319 screen_write_sixelimage(sctx, si, ictx->cell.cell.bg); 2320 } 2321 #endif 2322 2323 allow_passthrough = options_get_number(wp->options, "allow-passthrough"); 2324 if (!allow_passthrough) 2325 return (0); 2326 log_debug("%s: \"%s\"", __func__, buf); 2327 2328 if (len >= prefixlen && strncmp(buf, prefix, prefixlen) == 0) { 2329 screen_write_rawstring(sctx, (u_char *)buf + prefixlen, len - prefixlen, 2330 allow_passthrough == 2); 2331 } 2332 2333 return (0); 2334 } 2335 2336 /* OSC string started. */ 2337 static void 2338 input_enter_osc(struct input_ctx *ictx) 2339 { 2340 log_debug("%s", __func__); 2341 2342 input_clear(ictx); 2343 input_start_timer(ictx); 2344 ictx->last = -1; 2345 } 2346 2347 /* OSC terminator (ST) received. */ 2348 static void 2349 input_exit_osc(struct input_ctx *ictx) 2350 { 2351 struct screen_write_ctx *sctx = &ictx->ctx; 2352 struct window_pane *wp = ictx->wp; 2353 char *p = (char *)ictx->input_buf; 2354 u_int option; 2355 2356 if (ictx->flags & INPUT_DISCARD) 2357 return; 2358 if (ictx->input_len < 1 || *p < '0' || *p > '9') 2359 return; 2360 2361 log_debug("%s: \"%s\" (end %s)", __func__, p, 2362 ictx->input_end == INPUT_END_ST ? "ST" : "BEL"); 2363 2364 option = 0; 2365 while (*p >= '0' && *p <= '9') 2366 option = option * 10 + *p++ - '0'; 2367 if (*p != ';' && *p != '\0') 2368 return; 2369 if (*p == ';') 2370 p++; 2371 2372 switch (option) { 2373 case 0: 2374 case 2: 2375 if (screen_set_title(sctx->s, p) && wp != NULL) { 2376 notify_pane("pane-title-changed", wp); 2377 server_redraw_window_borders(wp->window); 2378 server_status_window(wp->window); 2379 } 2380 break; 2381 case 4: 2382 input_osc_4(ictx, p); 2383 break; 2384 case 7: 2385 if (utf8_isvalid(p)) { 2386 screen_set_path(sctx->s, p); 2387 if (wp != NULL) { 2388 server_redraw_window_borders(wp->window); 2389 server_status_window(wp->window); 2390 } 2391 } 2392 break; 2393 case 8: 2394 input_osc_8(ictx, p); 2395 break; 2396 case 10: 2397 input_osc_10(ictx, p); 2398 break; 2399 case 11: 2400 input_osc_11(ictx, p); 2401 break; 2402 case 12: 2403 input_osc_12(ictx, p); 2404 break; 2405 case 52: 2406 input_osc_52(ictx, p); 2407 break; 2408 case 104: 2409 input_osc_104(ictx, p); 2410 break; 2411 case 110: 2412 input_osc_110(ictx, p); 2413 break; 2414 case 111: 2415 input_osc_111(ictx, p); 2416 break; 2417 case 112: 2418 input_osc_112(ictx, p); 2419 break; 2420 case 133: 2421 input_osc_133(ictx, p); 2422 break; 2423 default: 2424 log_debug("%s: unknown '%u'", __func__, option); 2425 break; 2426 } 2427 } 2428 2429 /* APC string started. */ 2430 static void 2431 input_enter_apc(struct input_ctx *ictx) 2432 { 2433 log_debug("%s", __func__); 2434 2435 input_clear(ictx); 2436 input_start_timer(ictx); 2437 ictx->last = -1; 2438 } 2439 2440 /* APC terminator (ST) received. */ 2441 static void 2442 input_exit_apc(struct input_ctx *ictx) 2443 { 2444 struct screen_write_ctx *sctx = &ictx->ctx; 2445 struct window_pane *wp = ictx->wp; 2446 char *p = (char *)ictx->input_buf; 2447 2448 if (ictx->flags & INPUT_DISCARD) 2449 return; 2450 log_debug("%s: \"%s\"", __func__, p); 2451 2452 if (screen_set_title(sctx->s, p) && wp != NULL) { 2453 notify_pane("pane-title-changed", wp); 2454 server_redraw_window_borders(wp->window); 2455 server_status_window(wp->window); 2456 } 2457 } 2458 2459 /* Rename string started. */ 2460 static void 2461 input_enter_rename(struct input_ctx *ictx) 2462 { 2463 log_debug("%s", __func__); 2464 2465 input_clear(ictx); 2466 input_start_timer(ictx); 2467 ictx->last = -1; 2468 } 2469 2470 /* Rename terminator (ST) received. */ 2471 static void 2472 input_exit_rename(struct input_ctx *ictx) 2473 { 2474 struct window_pane *wp = ictx->wp; 2475 struct window *w; 2476 struct options_entry *o; 2477 char *p = (char *)ictx->input_buf; 2478 2479 if (wp == NULL) 2480 return; 2481 if (ictx->flags & INPUT_DISCARD) 2482 return; 2483 if (!options_get_number(ictx->wp->options, "allow-rename")) 2484 return; 2485 log_debug("%s: \"%s\"", __func__, p); 2486 2487 if (!utf8_isvalid(p)) 2488 return; 2489 w = wp->window; 2490 2491 if (ictx->input_len == 0) { 2492 o = options_get_only(w->options, "automatic-rename"); 2493 if (o != NULL) 2494 options_remove_or_default(o, -1, NULL); 2495 if (!options_get_number(w->options, "automatic-rename")) 2496 window_set_name(w, ""); 2497 } else { 2498 options_set_number(w->options, "automatic-rename", 0); 2499 window_set_name(w, ictx->input_buf); 2500 } 2501 server_redraw_window_borders(w); 2502 server_status_window(w); 2503 } 2504 2505 /* Open UTF-8 character. */ 2506 static int 2507 input_top_bit_set(struct input_ctx *ictx) 2508 { 2509 struct screen_write_ctx *sctx = &ictx->ctx; 2510 struct utf8_data *ud = &ictx->utf8data; 2511 2512 ictx->last = -1; 2513 2514 if (!ictx->utf8started) { 2515 if (utf8_open(ud, ictx->ch) != UTF8_MORE) 2516 return (0); 2517 ictx->utf8started = 1; 2518 return (0); 2519 } 2520 2521 switch (utf8_append(ud, ictx->ch)) { 2522 case UTF8_MORE: 2523 return (0); 2524 case UTF8_ERROR: 2525 ictx->utf8started = 0; 2526 return (0); 2527 case UTF8_DONE: 2528 break; 2529 } 2530 ictx->utf8started = 0; 2531 2532 log_debug("%s %hhu '%*s' (width %hhu)", __func__, ud->size, 2533 (int)ud->size, ud->data, ud->width); 2534 2535 utf8_copy(&ictx->cell.cell.data, ud); 2536 screen_write_collect_add(sctx, &ictx->cell.cell); 2537 2538 return (0); 2539 } 2540 2541 /* Reply to a colour request. */ 2542 static void 2543 input_osc_colour_reply(struct input_ctx *ictx, u_int n, int c) 2544 { 2545 u_char r, g, b; 2546 const char *end; 2547 2548 if (c != -1) 2549 c = colour_force_rgb(c); 2550 if (c == -1) 2551 return; 2552 colour_split_rgb(c, &r, &g, &b); 2553 2554 if (ictx->input_end == INPUT_END_BEL) 2555 end = "\007"; 2556 else 2557 end = "\033\\"; 2558 input_reply(ictx, "\033]%u;rgb:%02hhx%02hhx/%02hhx%02hhx/%02hhx%02hhx%s", 2559 n, r, r, g, g, b, b, end); 2560 } 2561 2562 /* Handle the OSC 4 sequence for setting (multiple) palette entries. */ 2563 static void 2564 input_osc_4(struct input_ctx *ictx, const char *p) 2565 { 2566 char *copy, *s, *next = NULL; 2567 long idx; 2568 int c, bad = 0, redraw = 0; 2569 2570 copy = s = xstrdup(p); 2571 while (s != NULL && *s != '\0') { 2572 idx = strtol(s, &next, 10); 2573 if (*next++ != ';') { 2574 bad = 1; 2575 break; 2576 } 2577 if (idx < 0 || idx >= 256) { 2578 bad = 1; 2579 break; 2580 } 2581 2582 s = strsep(&next, ";"); 2583 if (strcmp(s, "?") == 0) { 2584 c = colour_palette_get(ictx->palette, idx); 2585 if (c != -1) 2586 input_osc_colour_reply(ictx, 4, c); 2587 continue; 2588 } 2589 if ((c = colour_parseX11(s)) == -1) { 2590 s = next; 2591 continue; 2592 } 2593 if (colour_palette_set(ictx->palette, idx, c)) 2594 redraw = 1; 2595 s = next; 2596 } 2597 if (bad) 2598 log_debug("bad OSC 4: %s", p); 2599 if (redraw) 2600 screen_write_fullredraw(&ictx->ctx); 2601 free(copy); 2602 } 2603 2604 /* Handle the OSC 8 sequence for embedding hyperlinks. */ 2605 static void 2606 input_osc_8(struct input_ctx *ictx, const char *p) 2607 { 2608 struct hyperlinks *hl = ictx->ctx.s->hyperlinks; 2609 struct grid_cell *gc = &ictx->cell.cell; 2610 const char *start, *end, *uri; 2611 char *id = NULL; 2612 2613 for (start = p; (end = strpbrk(start, ":;")) != NULL; start = end + 1) { 2614 if (end - start >= 4 && strncmp(start, "id=", 3) == 0) { 2615 if (id != NULL) 2616 goto bad; 2617 id = xstrndup(start + 3, end - start - 3); 2618 } 2619 2620 /* The first ; is the end of parameters and start of the URI. */ 2621 if (*end == ';') 2622 break; 2623 } 2624 if (end == NULL || *end != ';') 2625 goto bad; 2626 uri = end + 1; 2627 if (*uri == '\0') { 2628 gc->link = 0; 2629 free(id); 2630 return; 2631 } 2632 gc->link = hyperlinks_put(hl, uri, id); 2633 if (id == NULL) 2634 log_debug("hyperlink (anonymous) %s = %u", uri, gc->link); 2635 else 2636 log_debug("hyperlink (id=%s) %s = %u", id, uri, gc->link); 2637 free(id); 2638 return; 2639 2640 bad: 2641 log_debug("bad OSC 8 %s", p); 2642 free(id); 2643 } 2644 2645 /* 2646 * Get a client with a foreground for the pane. There isn't much to choose 2647 * between them so just use the first. 2648 */ 2649 static int 2650 input_get_fg_client(struct window_pane *wp) 2651 { 2652 struct window *w = wp->window; 2653 struct client *loop; 2654 2655 TAILQ_FOREACH(loop, &clients, entry) { 2656 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2657 continue; 2658 if (loop->session == NULL || !session_has(loop->session, w)) 2659 continue; 2660 if (loop->tty.fg == -1) 2661 continue; 2662 return (loop->tty.fg); 2663 } 2664 return (-1); 2665 } 2666 2667 /* Get a client with a background for the pane. */ 2668 static int 2669 input_get_bg_client(struct window_pane *wp) 2670 { 2671 struct window *w = wp->window; 2672 struct client *loop; 2673 2674 TAILQ_FOREACH(loop, &clients, entry) { 2675 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2676 continue; 2677 if (loop->session == NULL || !session_has(loop->session, w)) 2678 continue; 2679 if (loop->tty.bg == -1) 2680 continue; 2681 return (loop->tty.bg); 2682 } 2683 return (-1); 2684 } 2685 2686 /* Handle the OSC 10 sequence for setting and querying foreground colour. */ 2687 static void 2688 input_osc_10(struct input_ctx *ictx, const char *p) 2689 { 2690 struct window_pane *wp = ictx->wp; 2691 struct grid_cell defaults; 2692 int c; 2693 2694 if (strcmp(p, "?") == 0) { 2695 if (wp == NULL) 2696 return; 2697 tty_default_colours(&defaults, wp); 2698 if (COLOUR_DEFAULT(defaults.fg)) 2699 c = input_get_fg_client(wp); 2700 else 2701 c = defaults.fg; 2702 input_osc_colour_reply(ictx, 10, c); 2703 return; 2704 } 2705 2706 if ((c = colour_parseX11(p)) == -1) { 2707 log_debug("bad OSC 10: %s", p); 2708 return; 2709 } 2710 if (ictx->palette != NULL) { 2711 ictx->palette->fg = c; 2712 if (wp != NULL) 2713 wp->flags |= PANE_STYLECHANGED; 2714 screen_write_fullredraw(&ictx->ctx); 2715 } 2716 } 2717 2718 /* Handle the OSC 110 sequence for resetting foreground colour. */ 2719 static void 2720 input_osc_110(struct input_ctx *ictx, const char *p) 2721 { 2722 struct window_pane *wp = ictx->wp; 2723 2724 if (*p != '\0') 2725 return; 2726 if (ictx->palette != NULL) { 2727 ictx->palette->fg = 8; 2728 if (wp != NULL) 2729 wp->flags |= PANE_STYLECHANGED; 2730 screen_write_fullredraw(&ictx->ctx); 2731 } 2732 } 2733 2734 /* Handle the OSC 11 sequence for setting and querying background colour. */ 2735 static void 2736 input_osc_11(struct input_ctx *ictx, const char *p) 2737 { 2738 struct window_pane *wp = ictx->wp; 2739 struct grid_cell defaults; 2740 int c; 2741 2742 if (strcmp(p, "?") == 0) { 2743 if (wp == NULL) 2744 return; 2745 tty_default_colours(&defaults, wp); 2746 if (COLOUR_DEFAULT(defaults.bg)) 2747 c = input_get_bg_client(wp); 2748 else 2749 c = defaults.bg; 2750 input_osc_colour_reply(ictx, 11, c); 2751 return; 2752 } 2753 2754 if ((c = colour_parseX11(p)) == -1) { 2755 log_debug("bad OSC 11: %s", p); 2756 return; 2757 } 2758 if (ictx->palette != NULL) { 2759 ictx->palette->bg = c; 2760 if (wp != NULL) 2761 wp->flags |= PANE_STYLECHANGED; 2762 screen_write_fullredraw(&ictx->ctx); 2763 } 2764 } 2765 2766 /* Handle the OSC 111 sequence for resetting background colour. */ 2767 static void 2768 input_osc_111(struct input_ctx *ictx, const char *p) 2769 { 2770 struct window_pane *wp = ictx->wp; 2771 2772 if (*p != '\0') 2773 return; 2774 if (ictx->palette != NULL) { 2775 ictx->palette->bg = 8; 2776 if (wp != NULL) 2777 wp->flags |= PANE_STYLECHANGED; 2778 screen_write_fullredraw(&ictx->ctx); 2779 } 2780 } 2781 2782 /* Handle the OSC 12 sequence for setting and querying cursor colour. */ 2783 static void 2784 input_osc_12(struct input_ctx *ictx, const char *p) 2785 { 2786 struct window_pane *wp = ictx->wp; 2787 int c; 2788 2789 if (strcmp(p, "?") == 0) { 2790 if (wp != NULL) { 2791 c = ictx->ctx.s->ccolour; 2792 if (c == -1) 2793 c = ictx->ctx.s->default_ccolour; 2794 input_osc_colour_reply(ictx, 12, c); 2795 } 2796 return; 2797 } 2798 2799 if ((c = colour_parseX11(p)) == -1) { 2800 log_debug("bad OSC 12: %s", p); 2801 return; 2802 } 2803 screen_set_cursor_colour(ictx->ctx.s, c); 2804 } 2805 2806 /* Handle the OSC 112 sequence for resetting cursor colour. */ 2807 static void 2808 input_osc_112(struct input_ctx *ictx, const char *p) 2809 { 2810 if (*p == '\0') /* no arguments allowed */ 2811 screen_set_cursor_colour(ictx->ctx.s, -1); 2812 } 2813 2814 /* Handle the OSC 133 sequence. */ 2815 static void 2816 input_osc_133(struct input_ctx *ictx, const char *p) 2817 { 2818 struct grid *gd = ictx->ctx.s->grid; 2819 u_int line = ictx->ctx.s->cy + gd->hsize; 2820 struct grid_line *gl; 2821 2822 if (line > gd->hsize + gd->sy - 1) 2823 return; 2824 gl = grid_get_line(gd, line); 2825 2826 switch (*p) { 2827 case 'A': 2828 gl->flags |= GRID_LINE_START_PROMPT; 2829 break; 2830 case 'C': 2831 gl->flags |= GRID_LINE_START_OUTPUT; 2832 break; 2833 } 2834 } 2835 2836 /* Handle the OSC 52 sequence for setting the clipboard. */ 2837 static void 2838 input_osc_52(struct input_ctx *ictx, const char *p) 2839 { 2840 struct window_pane *wp = ictx->wp; 2841 char *end; 2842 const char *buf = NULL; 2843 size_t len = 0; 2844 u_char *out; 2845 int outlen, state; 2846 struct screen_write_ctx ctx; 2847 struct paste_buffer *pb; 2848 const char* allow = "cpqs01234567"; 2849 char flags[sizeof "cpqs01234567"] = ""; 2850 u_int i, j = 0; 2851 2852 if (wp == NULL) 2853 return; 2854 state = options_get_number(global_options, "set-clipboard"); 2855 if (state != 2) 2856 return; 2857 2858 if ((end = strchr(p, ';')) == NULL) 2859 return; 2860 end++; 2861 if (*end == '\0') 2862 return; 2863 log_debug("%s: %s", __func__, end); 2864 2865 for (i = 0; p + i != end; i++) { 2866 if (strchr(allow, p[i]) != NULL && strchr(flags, p[i]) == NULL) 2867 flags[j++] = p[i]; 2868 } 2869 log_debug("%s: %.*s %s", __func__, (int)(end - p - 1), p, flags); 2870 2871 if (strcmp(end, "?") == 0) { 2872 if ((pb = paste_get_top(NULL)) != NULL) 2873 buf = paste_buffer_data(pb, &len); 2874 if (ictx->input_end == INPUT_END_BEL) 2875 input_reply_clipboard(ictx->event, buf, len, "\007"); 2876 else 2877 input_reply_clipboard(ictx->event, buf, len, "\033\\"); 2878 return; 2879 } 2880 2881 len = (strlen(end) / 4) * 3; 2882 if (len == 0) 2883 return; 2884 2885 out = xmalloc(len); 2886 if ((outlen = b64_pton(end, out, len)) == -1) { 2887 free(out); 2888 return; 2889 } 2890 2891 screen_write_start_pane(&ctx, wp, NULL); 2892 screen_write_setselection(&ctx, flags, out, outlen); 2893 screen_write_stop(&ctx); 2894 notify_pane("pane-set-clipboard", wp); 2895 2896 paste_add(NULL, (char *)out, outlen); 2897 } 2898 2899 /* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */ 2900 static void 2901 input_osc_104(struct input_ctx *ictx, const char *p) 2902 { 2903 char *copy, *s; 2904 long idx; 2905 int bad = 0, redraw = 0; 2906 2907 if (*p == '\0') { 2908 colour_palette_clear(ictx->palette); 2909 screen_write_fullredraw(&ictx->ctx); 2910 return; 2911 } 2912 2913 copy = s = xstrdup(p); 2914 while (*s != '\0') { 2915 idx = strtol(s, &s, 10); 2916 if (*s != '\0' && *s != ';') { 2917 bad = 1; 2918 break; 2919 } 2920 if (idx < 0 || idx >= 256) { 2921 bad = 1; 2922 break; 2923 } 2924 if (colour_palette_set(ictx->palette, idx, -1)) 2925 redraw = 1; 2926 if (*s == ';') 2927 s++; 2928 } 2929 if (bad) 2930 log_debug("bad OSC 104: %s", p); 2931 if (redraw) 2932 screen_write_fullredraw(&ictx->ctx); 2933 free(copy); 2934 } 2935 2936 void 2937 input_reply_clipboard(struct bufferevent *bev, const char *buf, size_t len, 2938 const char *end) 2939 { 2940 char *out = NULL; 2941 int outlen = 0; 2942 2943 if (buf != NULL && len != 0) { 2944 if (len >= ((size_t)INT_MAX * 3 / 4) - 1) 2945 return; 2946 outlen = 4 * ((len + 2) / 3) + 1; 2947 out = xmalloc(outlen); 2948 if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) { 2949 free(out); 2950 return; 2951 } 2952 } 2953 2954 bufferevent_write(bev, "\033]52;;", 6); 2955 if (outlen != 0) 2956 bufferevent_write(bev, out, outlen); 2957 bufferevent_write(bev, end, strlen(end)); 2958 free(out); 2959 } 2960