1 /* $OpenBSD: input.c,v 1.230 2024/10/14 20:26:45 nicm Exp $ */ 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 struct utf8_data last; 113 114 int flags; 115 #define INPUT_DISCARD 0x1 116 #define INPUT_LAST 0x2 117 118 const struct input_state *state; 119 120 struct event timer; 121 122 /* 123 * All input received since we were last in the ground state. Sent to 124 * control clients on connection. 125 */ 126 struct evbuffer *since_ground; 127 }; 128 129 /* Helper functions. */ 130 struct input_transition; 131 static int input_split(struct input_ctx *); 132 static int input_get(struct input_ctx *, u_int, int, int); 133 static void printflike(2, 3) input_reply(struct input_ctx *, const char *, ...); 134 static void input_set_state(struct input_ctx *, 135 const struct input_transition *); 136 static void input_reset_cell(struct input_ctx *); 137 138 static void input_osc_4(struct input_ctx *, const char *); 139 static void input_osc_8(struct input_ctx *, const char *); 140 static void input_osc_10(struct input_ctx *, const char *); 141 static void input_osc_11(struct input_ctx *, const char *); 142 static void input_osc_12(struct input_ctx *, const char *); 143 static void input_osc_52(struct input_ctx *, const char *); 144 static void input_osc_104(struct input_ctx *, const char *); 145 static void input_osc_110(struct input_ctx *, const char *); 146 static void input_osc_111(struct input_ctx *, const char *); 147 static void input_osc_112(struct input_ctx *, const char *); 148 static void input_osc_133(struct input_ctx *, const char *); 149 150 /* Transition entry/exit handlers. */ 151 static void input_clear(struct input_ctx *); 152 static void input_ground(struct input_ctx *); 153 static void input_enter_dcs(struct input_ctx *); 154 static void input_enter_osc(struct input_ctx *); 155 static void input_exit_osc(struct input_ctx *); 156 static void input_enter_apc(struct input_ctx *); 157 static void input_exit_apc(struct input_ctx *); 158 static void input_enter_rename(struct input_ctx *); 159 static void input_exit_rename(struct input_ctx *); 160 161 /* Input state handlers. */ 162 static int input_print(struct input_ctx *); 163 static int input_intermediate(struct input_ctx *); 164 static int input_parameter(struct input_ctx *); 165 static int input_input(struct input_ctx *); 166 static int input_c0_dispatch(struct input_ctx *); 167 static int input_esc_dispatch(struct input_ctx *); 168 static int input_csi_dispatch(struct input_ctx *); 169 static void input_csi_dispatch_rm(struct input_ctx *); 170 static void input_csi_dispatch_rm_private(struct input_ctx *); 171 static void input_csi_dispatch_sm(struct input_ctx *); 172 static void input_csi_dispatch_sm_private(struct input_ctx *); 173 static void input_csi_dispatch_sm_graphics(struct input_ctx *); 174 static void input_csi_dispatch_winops(struct input_ctx *); 175 static void input_csi_dispatch_sgr_256(struct input_ctx *, int, u_int *); 176 static void input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *); 177 static void input_csi_dispatch_sgr(struct input_ctx *); 178 static int input_dcs_dispatch(struct input_ctx *); 179 static int input_top_bit_set(struct input_ctx *); 180 static int input_end_bel(struct input_ctx *); 181 182 /* Command table comparison function. */ 183 static int input_table_compare(const void *, const void *); 184 185 /* Command table entry. */ 186 struct input_table_entry { 187 int ch; 188 const char *interm; 189 int type; 190 }; 191 192 /* Escape commands. */ 193 enum input_esc_type { 194 INPUT_ESC_DECALN, 195 INPUT_ESC_DECKPAM, 196 INPUT_ESC_DECKPNM, 197 INPUT_ESC_DECRC, 198 INPUT_ESC_DECSC, 199 INPUT_ESC_HTS, 200 INPUT_ESC_IND, 201 INPUT_ESC_NEL, 202 INPUT_ESC_RI, 203 INPUT_ESC_RIS, 204 INPUT_ESC_SCSG0_OFF, 205 INPUT_ESC_SCSG0_ON, 206 INPUT_ESC_SCSG1_OFF, 207 INPUT_ESC_SCSG1_ON, 208 INPUT_ESC_ST 209 }; 210 211 /* Escape command table. */ 212 static const struct input_table_entry input_esc_table[] = { 213 { '0', "(", INPUT_ESC_SCSG0_ON }, 214 { '0', ")", INPUT_ESC_SCSG1_ON }, 215 { '7', "", INPUT_ESC_DECSC }, 216 { '8', "", INPUT_ESC_DECRC }, 217 { '8', "#", INPUT_ESC_DECALN }, 218 { '=', "", INPUT_ESC_DECKPAM }, 219 { '>', "", INPUT_ESC_DECKPNM }, 220 { 'B', "(", INPUT_ESC_SCSG0_OFF }, 221 { 'B', ")", INPUT_ESC_SCSG1_OFF }, 222 { 'D', "", INPUT_ESC_IND }, 223 { 'E', "", INPUT_ESC_NEL }, 224 { 'H', "", INPUT_ESC_HTS }, 225 { 'M', "", INPUT_ESC_RI }, 226 { '\\', "", INPUT_ESC_ST }, 227 { 'c', "", INPUT_ESC_RIS }, 228 }; 229 230 /* Control (CSI) commands. */ 231 enum input_csi_type { 232 INPUT_CSI_CBT, 233 INPUT_CSI_CNL, 234 INPUT_CSI_CPL, 235 INPUT_CSI_CUB, 236 INPUT_CSI_CUD, 237 INPUT_CSI_CUF, 238 INPUT_CSI_CUP, 239 INPUT_CSI_CUU, 240 INPUT_CSI_DA, 241 INPUT_CSI_DA_TWO, 242 INPUT_CSI_DCH, 243 INPUT_CSI_DECSCUSR, 244 INPUT_CSI_DECSTBM, 245 INPUT_CSI_DL, 246 INPUT_CSI_DSR, 247 INPUT_CSI_ECH, 248 INPUT_CSI_ED, 249 INPUT_CSI_EL, 250 INPUT_CSI_HPA, 251 INPUT_CSI_ICH, 252 INPUT_CSI_IL, 253 INPUT_CSI_MODOFF, 254 INPUT_CSI_MODSET, 255 INPUT_CSI_RCP, 256 INPUT_CSI_REP, 257 INPUT_CSI_RM, 258 INPUT_CSI_RM_PRIVATE, 259 INPUT_CSI_SCP, 260 INPUT_CSI_SD, 261 INPUT_CSI_SGR, 262 INPUT_CSI_SM, 263 INPUT_CSI_SM_PRIVATE, 264 INPUT_CSI_SM_GRAPHICS, 265 INPUT_CSI_SU, 266 INPUT_CSI_TBC, 267 INPUT_CSI_VPA, 268 INPUT_CSI_WINOPS, 269 INPUT_CSI_XDA 270 }; 271 272 /* Control (CSI) command table. */ 273 static const struct input_table_entry input_csi_table[] = { 274 { '@', "", INPUT_CSI_ICH }, 275 { 'A', "", INPUT_CSI_CUU }, 276 { 'B', "", INPUT_CSI_CUD }, 277 { 'C', "", INPUT_CSI_CUF }, 278 { 'D', "", INPUT_CSI_CUB }, 279 { 'E', "", INPUT_CSI_CNL }, 280 { 'F', "", INPUT_CSI_CPL }, 281 { 'G', "", INPUT_CSI_HPA }, 282 { 'H', "", INPUT_CSI_CUP }, 283 { 'J', "", INPUT_CSI_ED }, 284 { 'K', "", INPUT_CSI_EL }, 285 { 'L', "", INPUT_CSI_IL }, 286 { 'M', "", INPUT_CSI_DL }, 287 { 'P', "", INPUT_CSI_DCH }, 288 { 'S', "", INPUT_CSI_SU }, 289 { 'S', "?", INPUT_CSI_SM_GRAPHICS }, 290 { 'T', "", INPUT_CSI_SD }, 291 { 'X', "", INPUT_CSI_ECH }, 292 { 'Z', "", INPUT_CSI_CBT }, 293 { '`', "", INPUT_CSI_HPA }, 294 { 'b', "", INPUT_CSI_REP }, 295 { 'c', "", INPUT_CSI_DA }, 296 { 'c', ">", INPUT_CSI_DA_TWO }, 297 { 'd', "", INPUT_CSI_VPA }, 298 { 'f', "", INPUT_CSI_CUP }, 299 { 'g', "", INPUT_CSI_TBC }, 300 { 'h', "", INPUT_CSI_SM }, 301 { 'h', "?", INPUT_CSI_SM_PRIVATE }, 302 { 'l', "", INPUT_CSI_RM }, 303 { 'l', "?", INPUT_CSI_RM_PRIVATE }, 304 { 'm', "", INPUT_CSI_SGR }, 305 { 'm', ">", INPUT_CSI_MODSET }, 306 { 'n', "", INPUT_CSI_DSR }, 307 { 'n', ">", INPUT_CSI_MODOFF }, 308 { 'q', " ", INPUT_CSI_DECSCUSR }, 309 { 'q', ">", INPUT_CSI_XDA }, 310 { 'r', "", INPUT_CSI_DECSTBM }, 311 { 's', "", INPUT_CSI_SCP }, 312 { 't', "", INPUT_CSI_WINOPS }, 313 { 'u', "", INPUT_CSI_RCP } 314 }; 315 316 /* Input transition. */ 317 struct input_transition { 318 int first; 319 int last; 320 321 int (*handler)(struct input_ctx *); 322 const struct input_state *state; 323 }; 324 325 /* Input state. */ 326 struct input_state { 327 const char *name; 328 void (*enter)(struct input_ctx *); 329 void (*exit)(struct input_ctx *); 330 const struct input_transition *transitions; 331 }; 332 333 /* State transitions available from all states. */ 334 #define INPUT_STATE_ANYWHERE \ 335 { 0x18, 0x18, input_c0_dispatch, &input_state_ground }, \ 336 { 0x1a, 0x1a, input_c0_dispatch, &input_state_ground }, \ 337 { 0x1b, 0x1b, NULL, &input_state_esc_enter } 338 339 /* Forward declarations of state tables. */ 340 static const struct input_transition input_state_ground_table[]; 341 static const struct input_transition input_state_esc_enter_table[]; 342 static const struct input_transition input_state_esc_intermediate_table[]; 343 static const struct input_transition input_state_csi_enter_table[]; 344 static const struct input_transition input_state_csi_parameter_table[]; 345 static const struct input_transition input_state_csi_intermediate_table[]; 346 static const struct input_transition input_state_csi_ignore_table[]; 347 static const struct input_transition input_state_dcs_enter_table[]; 348 static const struct input_transition input_state_dcs_parameter_table[]; 349 static const struct input_transition input_state_dcs_intermediate_table[]; 350 static const struct input_transition input_state_dcs_handler_table[]; 351 static const struct input_transition input_state_dcs_escape_table[]; 352 static const struct input_transition input_state_dcs_ignore_table[]; 353 static const struct input_transition input_state_osc_string_table[]; 354 static const struct input_transition input_state_apc_string_table[]; 355 static const struct input_transition input_state_rename_string_table[]; 356 static const struct input_transition input_state_consume_st_table[]; 357 358 /* ground state definition. */ 359 static const struct input_state input_state_ground = { 360 "ground", 361 input_ground, NULL, 362 input_state_ground_table 363 }; 364 365 /* esc_enter state definition. */ 366 static const struct input_state input_state_esc_enter = { 367 "esc_enter", 368 input_clear, NULL, 369 input_state_esc_enter_table 370 }; 371 372 /* esc_intermediate state definition. */ 373 static const struct input_state input_state_esc_intermediate = { 374 "esc_intermediate", 375 NULL, NULL, 376 input_state_esc_intermediate_table 377 }; 378 379 /* csi_enter state definition. */ 380 static const struct input_state input_state_csi_enter = { 381 "csi_enter", 382 input_clear, NULL, 383 input_state_csi_enter_table 384 }; 385 386 /* csi_parameter state definition. */ 387 static const struct input_state input_state_csi_parameter = { 388 "csi_parameter", 389 NULL, NULL, 390 input_state_csi_parameter_table 391 }; 392 393 /* csi_intermediate state definition. */ 394 static const struct input_state input_state_csi_intermediate = { 395 "csi_intermediate", 396 NULL, NULL, 397 input_state_csi_intermediate_table 398 }; 399 400 /* csi_ignore state definition. */ 401 static const struct input_state input_state_csi_ignore = { 402 "csi_ignore", 403 NULL, NULL, 404 input_state_csi_ignore_table 405 }; 406 407 /* dcs_enter state definition. */ 408 static const struct input_state input_state_dcs_enter = { 409 "dcs_enter", 410 input_enter_dcs, NULL, 411 input_state_dcs_enter_table 412 }; 413 414 /* dcs_parameter state definition. */ 415 static const struct input_state input_state_dcs_parameter = { 416 "dcs_parameter", 417 NULL, NULL, 418 input_state_dcs_parameter_table 419 }; 420 421 /* dcs_intermediate state definition. */ 422 static const struct input_state input_state_dcs_intermediate = { 423 "dcs_intermediate", 424 NULL, NULL, 425 input_state_dcs_intermediate_table 426 }; 427 428 /* dcs_handler state definition. */ 429 static const struct input_state input_state_dcs_handler = { 430 "dcs_handler", 431 NULL, NULL, 432 input_state_dcs_handler_table 433 }; 434 435 /* dcs_escape state definition. */ 436 static const struct input_state input_state_dcs_escape = { 437 "dcs_escape", 438 NULL, NULL, 439 input_state_dcs_escape_table 440 }; 441 442 /* dcs_ignore state definition. */ 443 static const struct input_state input_state_dcs_ignore = { 444 "dcs_ignore", 445 NULL, NULL, 446 input_state_dcs_ignore_table 447 }; 448 449 /* osc_string state definition. */ 450 static const struct input_state input_state_osc_string = { 451 "osc_string", 452 input_enter_osc, input_exit_osc, 453 input_state_osc_string_table 454 }; 455 456 /* apc_string state definition. */ 457 static const struct input_state input_state_apc_string = { 458 "apc_string", 459 input_enter_apc, input_exit_apc, 460 input_state_apc_string_table 461 }; 462 463 /* rename_string state definition. */ 464 static const struct input_state input_state_rename_string = { 465 "rename_string", 466 input_enter_rename, input_exit_rename, 467 input_state_rename_string_table 468 }; 469 470 /* consume_st state definition. */ 471 static const struct input_state input_state_consume_st = { 472 "consume_st", 473 input_enter_rename, NULL, /* rename also waits for ST */ 474 input_state_consume_st_table 475 }; 476 477 /* ground state table. */ 478 static const struct input_transition input_state_ground_table[] = { 479 INPUT_STATE_ANYWHERE, 480 481 { 0x00, 0x17, input_c0_dispatch, NULL }, 482 { 0x19, 0x19, input_c0_dispatch, NULL }, 483 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 484 { 0x20, 0x7e, input_print, NULL }, 485 { 0x7f, 0x7f, NULL, NULL }, 486 { 0x80, 0xff, input_top_bit_set, NULL }, 487 488 { -1, -1, NULL, NULL } 489 }; 490 491 /* esc_enter state table. */ 492 static const struct input_transition input_state_esc_enter_table[] = { 493 INPUT_STATE_ANYWHERE, 494 495 { 0x00, 0x17, input_c0_dispatch, NULL }, 496 { 0x19, 0x19, input_c0_dispatch, NULL }, 497 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 498 { 0x20, 0x2f, input_intermediate, &input_state_esc_intermediate }, 499 { 0x30, 0x4f, input_esc_dispatch, &input_state_ground }, 500 { 0x50, 0x50, NULL, &input_state_dcs_enter }, 501 { 0x51, 0x57, input_esc_dispatch, &input_state_ground }, 502 { 0x58, 0x58, NULL, &input_state_consume_st }, 503 { 0x59, 0x59, input_esc_dispatch, &input_state_ground }, 504 { 0x5a, 0x5a, input_esc_dispatch, &input_state_ground }, 505 { 0x5b, 0x5b, NULL, &input_state_csi_enter }, 506 { 0x5c, 0x5c, input_esc_dispatch, &input_state_ground }, 507 { 0x5d, 0x5d, NULL, &input_state_osc_string }, 508 { 0x5e, 0x5e, NULL, &input_state_consume_st }, 509 { 0x5f, 0x5f, NULL, &input_state_apc_string }, 510 { 0x60, 0x6a, input_esc_dispatch, &input_state_ground }, 511 { 0x6b, 0x6b, NULL, &input_state_rename_string }, 512 { 0x6c, 0x7e, input_esc_dispatch, &input_state_ground }, 513 { 0x7f, 0xff, NULL, NULL }, 514 515 { -1, -1, NULL, NULL } 516 }; 517 518 /* esc_intermediate state table. */ 519 static const struct input_transition input_state_esc_intermediate_table[] = { 520 INPUT_STATE_ANYWHERE, 521 522 { 0x00, 0x17, input_c0_dispatch, NULL }, 523 { 0x19, 0x19, input_c0_dispatch, NULL }, 524 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 525 { 0x20, 0x2f, input_intermediate, NULL }, 526 { 0x30, 0x7e, input_esc_dispatch, &input_state_ground }, 527 { 0x7f, 0xff, NULL, NULL }, 528 529 { -1, -1, NULL, NULL } 530 }; 531 532 /* csi_enter state table. */ 533 static const struct input_transition input_state_csi_enter_table[] = { 534 INPUT_STATE_ANYWHERE, 535 536 { 0x00, 0x17, input_c0_dispatch, NULL }, 537 { 0x19, 0x19, input_c0_dispatch, NULL }, 538 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 539 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 540 { 0x30, 0x39, input_parameter, &input_state_csi_parameter }, 541 { 0x3a, 0x3a, input_parameter, &input_state_csi_parameter }, 542 { 0x3b, 0x3b, input_parameter, &input_state_csi_parameter }, 543 { 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter }, 544 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 545 { 0x7f, 0xff, NULL, NULL }, 546 547 { -1, -1, NULL, NULL } 548 }; 549 550 /* csi_parameter state table. */ 551 static const struct input_transition input_state_csi_parameter_table[] = { 552 INPUT_STATE_ANYWHERE, 553 554 { 0x00, 0x17, input_c0_dispatch, NULL }, 555 { 0x19, 0x19, input_c0_dispatch, NULL }, 556 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 557 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 558 { 0x30, 0x39, input_parameter, NULL }, 559 { 0x3a, 0x3a, input_parameter, NULL }, 560 { 0x3b, 0x3b, input_parameter, NULL }, 561 { 0x3c, 0x3f, NULL, &input_state_csi_ignore }, 562 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 563 { 0x7f, 0xff, NULL, NULL }, 564 565 { -1, -1, NULL, NULL } 566 }; 567 568 /* csi_intermediate state table. */ 569 static const struct input_transition input_state_csi_intermediate_table[] = { 570 INPUT_STATE_ANYWHERE, 571 572 { 0x00, 0x17, input_c0_dispatch, NULL }, 573 { 0x19, 0x19, input_c0_dispatch, NULL }, 574 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 575 { 0x20, 0x2f, input_intermediate, NULL }, 576 { 0x30, 0x3f, NULL, &input_state_csi_ignore }, 577 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 578 { 0x7f, 0xff, NULL, NULL }, 579 580 { -1, -1, NULL, NULL } 581 }; 582 583 /* csi_ignore state table. */ 584 static const struct input_transition input_state_csi_ignore_table[] = { 585 INPUT_STATE_ANYWHERE, 586 587 { 0x00, 0x17, input_c0_dispatch, NULL }, 588 { 0x19, 0x19, input_c0_dispatch, NULL }, 589 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 590 { 0x20, 0x3f, NULL, NULL }, 591 { 0x40, 0x7e, NULL, &input_state_ground }, 592 { 0x7f, 0xff, NULL, NULL }, 593 594 { -1, -1, NULL, NULL } 595 }; 596 597 /* dcs_enter state table. */ 598 static const struct input_transition input_state_dcs_enter_table[] = { 599 INPUT_STATE_ANYWHERE, 600 601 { 0x00, 0x17, NULL, NULL }, 602 { 0x19, 0x19, NULL, NULL }, 603 { 0x1c, 0x1f, NULL, NULL }, 604 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 605 { 0x30, 0x39, input_parameter, &input_state_dcs_parameter }, 606 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 607 { 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter }, 608 { 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter }, 609 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 610 { 0x7f, 0xff, NULL, NULL }, 611 612 { -1, -1, NULL, NULL } 613 }; 614 615 /* dcs_parameter state table. */ 616 static const struct input_transition input_state_dcs_parameter_table[] = { 617 INPUT_STATE_ANYWHERE, 618 619 { 0x00, 0x17, NULL, NULL }, 620 { 0x19, 0x19, NULL, NULL }, 621 { 0x1c, 0x1f, NULL, NULL }, 622 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 623 { 0x30, 0x39, input_parameter, NULL }, 624 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 625 { 0x3b, 0x3b, input_parameter, NULL }, 626 { 0x3c, 0x3f, NULL, &input_state_dcs_ignore }, 627 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 628 { 0x7f, 0xff, NULL, NULL }, 629 630 { -1, -1, NULL, NULL } 631 }; 632 633 /* dcs_intermediate state table. */ 634 static const struct input_transition input_state_dcs_intermediate_table[] = { 635 INPUT_STATE_ANYWHERE, 636 637 { 0x00, 0x17, NULL, NULL }, 638 { 0x19, 0x19, NULL, NULL }, 639 { 0x1c, 0x1f, NULL, NULL }, 640 { 0x20, 0x2f, input_intermediate, NULL }, 641 { 0x30, 0x3f, NULL, &input_state_dcs_ignore }, 642 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 643 { 0x7f, 0xff, NULL, NULL }, 644 645 { -1, -1, NULL, NULL } 646 }; 647 648 /* dcs_handler state table. */ 649 static const struct input_transition input_state_dcs_handler_table[] = { 650 /* No INPUT_STATE_ANYWHERE */ 651 652 { 0x00, 0x1a, input_input, NULL }, 653 { 0x1b, 0x1b, NULL, &input_state_dcs_escape }, 654 { 0x1c, 0xff, input_input, NULL }, 655 656 { -1, -1, NULL, NULL } 657 }; 658 659 /* dcs_escape state table. */ 660 static const struct input_transition input_state_dcs_escape_table[] = { 661 /* No INPUT_STATE_ANYWHERE */ 662 663 { 0x00, 0x5b, input_input, &input_state_dcs_handler }, 664 { 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground }, 665 { 0x5d, 0xff, input_input, &input_state_dcs_handler }, 666 667 { -1, -1, NULL, NULL } 668 }; 669 670 /* dcs_ignore state table. */ 671 static const struct input_transition input_state_dcs_ignore_table[] = { 672 INPUT_STATE_ANYWHERE, 673 674 { 0x00, 0x17, NULL, NULL }, 675 { 0x19, 0x19, NULL, NULL }, 676 { 0x1c, 0x1f, NULL, NULL }, 677 { 0x20, 0xff, NULL, NULL }, 678 679 { -1, -1, NULL, NULL } 680 }; 681 682 /* osc_string state table. */ 683 static const struct input_transition input_state_osc_string_table[] = { 684 INPUT_STATE_ANYWHERE, 685 686 { 0x00, 0x06, NULL, NULL }, 687 { 0x07, 0x07, input_end_bel, &input_state_ground }, 688 { 0x08, 0x17, NULL, NULL }, 689 { 0x19, 0x19, NULL, NULL }, 690 { 0x1c, 0x1f, NULL, NULL }, 691 { 0x20, 0xff, input_input, NULL }, 692 693 { -1, -1, NULL, NULL } 694 }; 695 696 /* apc_string state table. */ 697 static const struct input_transition input_state_apc_string_table[] = { 698 INPUT_STATE_ANYWHERE, 699 700 { 0x00, 0x17, NULL, NULL }, 701 { 0x19, 0x19, NULL, NULL }, 702 { 0x1c, 0x1f, NULL, NULL }, 703 { 0x20, 0xff, input_input, NULL }, 704 705 { -1, -1, NULL, NULL } 706 }; 707 708 /* rename_string state table. */ 709 static const struct input_transition input_state_rename_string_table[] = { 710 INPUT_STATE_ANYWHERE, 711 712 { 0x00, 0x17, NULL, NULL }, 713 { 0x19, 0x19, NULL, NULL }, 714 { 0x1c, 0x1f, NULL, NULL }, 715 { 0x20, 0xff, input_input, NULL }, 716 717 { -1, -1, NULL, NULL } 718 }; 719 720 /* consume_st state table. */ 721 static const struct input_transition input_state_consume_st_table[] = { 722 INPUT_STATE_ANYWHERE, 723 724 { 0x00, 0x17, NULL, NULL }, 725 { 0x19, 0x19, NULL, NULL }, 726 { 0x1c, 0x1f, NULL, NULL }, 727 { 0x20, 0xff, NULL, NULL }, 728 729 { -1, -1, NULL, NULL } 730 }; 731 732 /* Input table compare. */ 733 static int 734 input_table_compare(const void *key, const void *value) 735 { 736 const struct input_ctx *ictx = key; 737 const struct input_table_entry *entry = value; 738 739 if (ictx->ch != entry->ch) 740 return (ictx->ch - entry->ch); 741 return (strcmp(ictx->interm_buf, entry->interm)); 742 } 743 744 /* 745 * Timer - if this expires then have been waiting for a terminator for too 746 * long, so reset to ground. 747 */ 748 static void 749 input_timer_callback(__unused int fd, __unused short events, void *arg) 750 { 751 struct input_ctx *ictx = arg; 752 753 log_debug("%s: %s expired" , __func__, ictx->state->name); 754 input_reset(ictx, 0); 755 } 756 757 /* Start the timer. */ 758 static void 759 input_start_timer(struct input_ctx *ictx) 760 { 761 struct timeval tv = { .tv_sec = 5, .tv_usec = 0 }; 762 763 event_del(&ictx->timer); 764 event_add(&ictx->timer, &tv); 765 } 766 767 /* Reset cell state to default. */ 768 static void 769 input_reset_cell(struct input_ctx *ictx) 770 { 771 memcpy(&ictx->cell.cell, &grid_default_cell, sizeof ictx->cell.cell); 772 ictx->cell.set = 0; 773 ictx->cell.g0set = ictx->cell.g1set = 0; 774 775 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 776 ictx->old_cx = 0; 777 ictx->old_cy = 0; 778 } 779 780 /* Save screen state. */ 781 static void 782 input_save_state(struct input_ctx *ictx) 783 { 784 struct screen_write_ctx *sctx = &ictx->ctx; 785 struct screen *s = sctx->s; 786 787 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 788 ictx->old_cx = s->cx; 789 ictx->old_cy = s->cy; 790 ictx->old_mode = s->mode; 791 } 792 793 /* Restore screen state. */ 794 static void 795 input_restore_state(struct input_ctx *ictx) 796 { 797 struct screen_write_ctx *sctx = &ictx->ctx; 798 799 memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell); 800 if (ictx->old_mode & MODE_ORIGIN) 801 screen_write_mode_set(sctx, MODE_ORIGIN); 802 else 803 screen_write_mode_clear(sctx, MODE_ORIGIN); 804 screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy, 0); 805 } 806 807 /* Initialise input parser. */ 808 struct input_ctx * 809 input_init(struct window_pane *wp, struct bufferevent *bev, 810 struct colour_palette *palette) 811 { 812 struct input_ctx *ictx; 813 814 ictx = xcalloc(1, sizeof *ictx); 815 ictx->wp = wp; 816 ictx->event = bev; 817 ictx->palette = palette; 818 819 ictx->input_space = INPUT_BUF_START; 820 ictx->input_buf = xmalloc(INPUT_BUF_START); 821 822 ictx->since_ground = evbuffer_new(); 823 if (ictx->since_ground == NULL) 824 fatalx("out of memory"); 825 826 evtimer_set(&ictx->timer, input_timer_callback, ictx); 827 828 input_reset(ictx, 0); 829 return (ictx); 830 } 831 832 /* Destroy input parser. */ 833 void 834 input_free(struct input_ctx *ictx) 835 { 836 u_int i; 837 838 for (i = 0; i < ictx->param_list_len; i++) { 839 if (ictx->param_list[i].type == INPUT_STRING) 840 free(ictx->param_list[i].str); 841 } 842 843 event_del(&ictx->timer); 844 845 free(ictx->input_buf); 846 evbuffer_free(ictx->since_ground); 847 848 free(ictx); 849 } 850 851 /* Reset input state and clear screen. */ 852 void 853 input_reset(struct input_ctx *ictx, int clear) 854 { 855 struct screen_write_ctx *sctx = &ictx->ctx; 856 struct window_pane *wp = ictx->wp; 857 858 input_reset_cell(ictx); 859 860 if (clear && wp != NULL) { 861 if (TAILQ_EMPTY(&wp->modes)) 862 screen_write_start_pane(sctx, wp, &wp->base); 863 else 864 screen_write_start(sctx, &wp->base); 865 screen_write_reset(sctx); 866 screen_write_stop(sctx); 867 } 868 869 input_clear(ictx); 870 871 ictx->state = &input_state_ground; 872 ictx->flags = 0; 873 } 874 875 /* Return pending data. */ 876 struct evbuffer * 877 input_pending(struct input_ctx *ictx) 878 { 879 return (ictx->since_ground); 880 } 881 882 /* Change input state. */ 883 static void 884 input_set_state(struct input_ctx *ictx, const struct input_transition *itr) 885 { 886 if (ictx->state->exit != NULL) 887 ictx->state->exit(ictx); 888 ictx->state = itr->state; 889 if (ictx->state->enter != NULL) 890 ictx->state->enter(ictx); 891 } 892 893 /* Parse data. */ 894 static void 895 input_parse(struct input_ctx *ictx, u_char *buf, size_t len) 896 { 897 struct screen_write_ctx *sctx = &ictx->ctx; 898 const struct input_state *state = NULL; 899 const struct input_transition *itr = NULL; 900 size_t off = 0; 901 902 /* Parse the input. */ 903 while (off < len) { 904 ictx->ch = buf[off++]; 905 906 /* Find the transition. */ 907 if (ictx->state != state || 908 itr == NULL || 909 ictx->ch < itr->first || 910 ictx->ch > itr->last) { 911 itr = ictx->state->transitions; 912 while (itr->first != -1 && itr->last != -1) { 913 if (ictx->ch >= itr->first && 914 ictx->ch <= itr->last) 915 break; 916 itr++; 917 } 918 if (itr->first == -1 || itr->last == -1) { 919 /* No transition? Eh? */ 920 fatalx("no transition from state"); 921 } 922 } 923 state = ictx->state; 924 925 /* 926 * Any state except print stops the current collection. This is 927 * an optimization to avoid checking if the attributes have 928 * changed for every character. It will stop unnecessarily for 929 * sequences that don't make a terminal change, but they should 930 * be the minority. 931 */ 932 if (itr->handler != input_print) 933 screen_write_collect_end(sctx); 934 935 /* 936 * Execute the handler, if any. Don't switch state if it 937 * returns non-zero. 938 */ 939 if (itr->handler != NULL && itr->handler(ictx) != 0) 940 continue; 941 942 /* And switch state, if necessary. */ 943 if (itr->state != NULL) 944 input_set_state(ictx, itr); 945 946 /* If not in ground state, save input. */ 947 if (ictx->state != &input_state_ground) 948 evbuffer_add(ictx->since_ground, &ictx->ch, 1); 949 } 950 } 951 952 /* Parse input from pane. */ 953 void 954 input_parse_pane(struct window_pane *wp) 955 { 956 void *new_data; 957 size_t new_size; 958 959 new_data = window_pane_get_new_data(wp, &wp->offset, &new_size); 960 input_parse_buffer(wp, new_data, new_size); 961 window_pane_update_used_data(wp, &wp->offset, new_size); 962 } 963 964 /* Parse given input. */ 965 void 966 input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len) 967 { 968 struct input_ctx *ictx = wp->ictx; 969 struct screen_write_ctx *sctx = &ictx->ctx; 970 971 if (len == 0) 972 return; 973 974 window_update_activity(wp->window); 975 wp->flags |= PANE_CHANGED; 976 977 /* Flag new input while in a mode. */ 978 if (!TAILQ_EMPTY(&wp->modes)) 979 wp->flags |= PANE_UNSEENCHANGES; 980 981 /* NULL wp if there is a mode set as don't want to update the tty. */ 982 if (TAILQ_EMPTY(&wp->modes)) 983 screen_write_start_pane(sctx, wp, &wp->base); 984 else 985 screen_write_start(sctx, &wp->base); 986 987 log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id, 988 ictx->state->name, len, (int)len, buf); 989 990 input_parse(ictx, buf, len); 991 screen_write_stop(sctx); 992 } 993 994 /* Parse given input for screen. */ 995 void 996 input_parse_screen(struct input_ctx *ictx, struct screen *s, 997 screen_write_init_ctx_cb cb, void *arg, u_char *buf, size_t len) 998 { 999 struct screen_write_ctx *sctx = &ictx->ctx; 1000 1001 if (len == 0) 1002 return; 1003 1004 screen_write_start_callback(sctx, s, cb, arg); 1005 input_parse(ictx, buf, len); 1006 screen_write_stop(sctx); 1007 } 1008 1009 /* Split the parameter list (if any). */ 1010 static int 1011 input_split(struct input_ctx *ictx) 1012 { 1013 const char *errstr; 1014 char *ptr, *out; 1015 struct input_param *ip; 1016 u_int i; 1017 1018 for (i = 0; i < ictx->param_list_len; i++) { 1019 if (ictx->param_list[i].type == INPUT_STRING) 1020 free(ictx->param_list[i].str); 1021 } 1022 ictx->param_list_len = 0; 1023 1024 if (ictx->param_len == 0) 1025 return (0); 1026 ip = &ictx->param_list[0]; 1027 1028 ptr = ictx->param_buf; 1029 while ((out = strsep(&ptr, ";")) != NULL) { 1030 if (*out == '\0') 1031 ip->type = INPUT_MISSING; 1032 else { 1033 if (strchr(out, ':') != NULL) { 1034 ip->type = INPUT_STRING; 1035 ip->str = xstrdup(out); 1036 } else { 1037 ip->type = INPUT_NUMBER; 1038 ip->num = strtonum(out, 0, INT_MAX, &errstr); 1039 if (errstr != NULL) 1040 return (-1); 1041 } 1042 } 1043 ip = &ictx->param_list[++ictx->param_list_len]; 1044 if (ictx->param_list_len == nitems(ictx->param_list)) 1045 return (-1); 1046 } 1047 1048 for (i = 0; i < ictx->param_list_len; i++) { 1049 ip = &ictx->param_list[i]; 1050 if (ip->type == INPUT_MISSING) 1051 log_debug("parameter %u: missing", i); 1052 else if (ip->type == INPUT_STRING) 1053 log_debug("parameter %u: string %s", i, ip->str); 1054 else if (ip->type == INPUT_NUMBER) 1055 log_debug("parameter %u: number %d", i, ip->num); 1056 } 1057 1058 return (0); 1059 } 1060 1061 /* Get an argument or return default value. */ 1062 static int 1063 input_get(struct input_ctx *ictx, u_int validx, int minval, int defval) 1064 { 1065 struct input_param *ip; 1066 int retval; 1067 1068 if (validx >= ictx->param_list_len) 1069 return (defval); 1070 ip = &ictx->param_list[validx]; 1071 if (ip->type == INPUT_MISSING) 1072 return (defval); 1073 if (ip->type == INPUT_STRING) 1074 return (-1); 1075 retval = ip->num; 1076 if (retval < minval) 1077 return (minval); 1078 return (retval); 1079 } 1080 1081 /* Reply to terminal query. */ 1082 static void 1083 input_reply(struct input_ctx *ictx, const char *fmt, ...) 1084 { 1085 struct bufferevent *bev = ictx->event; 1086 va_list ap; 1087 char *reply; 1088 1089 if (bev == NULL) 1090 return; 1091 1092 va_start(ap, fmt); 1093 xvasprintf(&reply, fmt, ap); 1094 va_end(ap); 1095 1096 log_debug("%s: %s", __func__, reply); 1097 bufferevent_write(bev, reply, strlen(reply)); 1098 free(reply); 1099 } 1100 1101 /* Clear saved state. */ 1102 static void 1103 input_clear(struct input_ctx *ictx) 1104 { 1105 event_del(&ictx->timer); 1106 1107 *ictx->interm_buf = '\0'; 1108 ictx->interm_len = 0; 1109 1110 *ictx->param_buf = '\0'; 1111 ictx->param_len = 0; 1112 1113 *ictx->input_buf = '\0'; 1114 ictx->input_len = 0; 1115 1116 ictx->input_end = INPUT_END_ST; 1117 1118 ictx->flags &= ~INPUT_DISCARD; 1119 } 1120 1121 /* Reset for ground state. */ 1122 static void 1123 input_ground(struct input_ctx *ictx) 1124 { 1125 event_del(&ictx->timer); 1126 evbuffer_drain(ictx->since_ground, EVBUFFER_LENGTH(ictx->since_ground)); 1127 1128 if (ictx->input_space > INPUT_BUF_START) { 1129 ictx->input_space = INPUT_BUF_START; 1130 ictx->input_buf = xrealloc(ictx->input_buf, INPUT_BUF_START); 1131 } 1132 } 1133 1134 /* Output this character to the screen. */ 1135 static int 1136 input_print(struct input_ctx *ictx) 1137 { 1138 struct screen_write_ctx *sctx = &ictx->ctx; 1139 int set; 1140 1141 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1142 1143 set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set; 1144 if (set == 1) 1145 ictx->cell.cell.attr |= GRID_ATTR_CHARSET; 1146 else 1147 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1148 utf8_set(&ictx->cell.cell.data, ictx->ch); 1149 screen_write_collect_add(sctx, &ictx->cell.cell); 1150 1151 utf8_copy(&ictx->last, &ictx->cell.cell.data); 1152 ictx->flags |= INPUT_LAST; 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->flags &= ~INPUT_LAST; 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->flags &= ~INPUT_LAST; 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, ek, set; 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 if (n != 4) 1410 break; 1411 m = input_get(ictx, 1, 0, 0); 1412 1413 /* 1414 * Set the extended key reporting mode as per the client 1415 * request, unless "extended-keys" is set to "off". 1416 */ 1417 ek = options_get_number(global_options, "extended-keys"); 1418 if (ek == 0) 1419 break; 1420 screen_write_mode_clear(sctx, EXTENDED_KEY_MODES); 1421 if (m == 2) 1422 screen_write_mode_set(sctx, MODE_KEYS_EXTENDED_2); 1423 else if (m == 1 || ek == 2) 1424 screen_write_mode_set(sctx, MODE_KEYS_EXTENDED); 1425 break; 1426 case INPUT_CSI_MODOFF: 1427 n = input_get(ictx, 0, 0, 0); 1428 if (n != 4) 1429 break; 1430 1431 /* 1432 * Clear the extended key reporting mode as per the client 1433 * request, unless "extended-keys always" forces into mode 1. 1434 */ 1435 screen_write_mode_clear(sctx, 1436 MODE_KEYS_EXTENDED|MODE_KEYS_EXTENDED_2); 1437 if (options_get_number(global_options, "extended-keys") == 2) 1438 screen_write_mode_set(sctx, MODE_KEYS_EXTENDED); 1439 break; 1440 case INPUT_CSI_WINOPS: 1441 input_csi_dispatch_winops(ictx); 1442 break; 1443 case INPUT_CSI_CUU: 1444 n = input_get(ictx, 0, 1, 1); 1445 if (n != -1) 1446 screen_write_cursorup(sctx, n); 1447 break; 1448 case INPUT_CSI_CNL: 1449 n = input_get(ictx, 0, 1, 1); 1450 if (n != -1) { 1451 screen_write_carriagereturn(sctx); 1452 screen_write_cursordown(sctx, n); 1453 } 1454 break; 1455 case INPUT_CSI_CPL: 1456 n = input_get(ictx, 0, 1, 1); 1457 if (n != -1) { 1458 screen_write_carriagereturn(sctx); 1459 screen_write_cursorup(sctx, n); 1460 } 1461 break; 1462 case INPUT_CSI_DA: 1463 switch (input_get(ictx, 0, 0, 0)) { 1464 case -1: 1465 break; 1466 case 0: 1467 input_reply(ictx, "\033[?1;2c"); 1468 break; 1469 default: 1470 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1471 break; 1472 } 1473 break; 1474 case INPUT_CSI_DA_TWO: 1475 switch (input_get(ictx, 0, 0, 0)) { 1476 case -1: 1477 break; 1478 case 0: 1479 input_reply(ictx, "\033[>84;0;0c"); 1480 break; 1481 default: 1482 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1483 break; 1484 } 1485 break; 1486 case INPUT_CSI_ECH: 1487 n = input_get(ictx, 0, 1, 1); 1488 if (n != -1) 1489 screen_write_clearcharacter(sctx, n, bg); 1490 break; 1491 case INPUT_CSI_DCH: 1492 n = input_get(ictx, 0, 1, 1); 1493 if (n != -1) 1494 screen_write_deletecharacter(sctx, n, bg); 1495 break; 1496 case INPUT_CSI_DECSTBM: 1497 n = input_get(ictx, 0, 1, 1); 1498 m = input_get(ictx, 1, 1, screen_size_y(s)); 1499 if (n != -1 && m != -1) 1500 screen_write_scrollregion(sctx, n - 1, m - 1); 1501 break; 1502 case INPUT_CSI_DL: 1503 n = input_get(ictx, 0, 1, 1); 1504 if (n != -1) 1505 screen_write_deleteline(sctx, n, bg); 1506 break; 1507 case INPUT_CSI_DSR: 1508 switch (input_get(ictx, 0, 0, 0)) { 1509 case -1: 1510 break; 1511 case 5: 1512 input_reply(ictx, "\033[0n"); 1513 break; 1514 case 6: 1515 input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1); 1516 break; 1517 default: 1518 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1519 break; 1520 } 1521 break; 1522 case INPUT_CSI_ED: 1523 switch (input_get(ictx, 0, 0, 0)) { 1524 case -1: 1525 break; 1526 case 0: 1527 screen_write_clearendofscreen(sctx, bg); 1528 break; 1529 case 1: 1530 screen_write_clearstartofscreen(sctx, bg); 1531 break; 1532 case 2: 1533 screen_write_clearscreen(sctx, bg); 1534 break; 1535 case 3: 1536 if (input_get(ictx, 1, 0, 0) == 0) { 1537 /* 1538 * Linux console extension to clear history 1539 * (for example before locking the screen). 1540 */ 1541 screen_write_clearhistory(sctx); 1542 } 1543 break; 1544 default: 1545 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1546 break; 1547 } 1548 break; 1549 case INPUT_CSI_EL: 1550 switch (input_get(ictx, 0, 0, 0)) { 1551 case -1: 1552 break; 1553 case 0: 1554 screen_write_clearendofline(sctx, bg); 1555 break; 1556 case 1: 1557 screen_write_clearstartofline(sctx, bg); 1558 break; 1559 case 2: 1560 screen_write_clearline(sctx, bg); 1561 break; 1562 default: 1563 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1564 break; 1565 } 1566 break; 1567 case INPUT_CSI_HPA: 1568 n = input_get(ictx, 0, 1, 1); 1569 if (n != -1) 1570 screen_write_cursormove(sctx, n - 1, -1, 1); 1571 break; 1572 case INPUT_CSI_ICH: 1573 n = input_get(ictx, 0, 1, 1); 1574 if (n != -1) 1575 screen_write_insertcharacter(sctx, n, bg); 1576 break; 1577 case INPUT_CSI_IL: 1578 n = input_get(ictx, 0, 1, 1); 1579 if (n != -1) 1580 screen_write_insertline(sctx, n, bg); 1581 break; 1582 case INPUT_CSI_REP: 1583 n = input_get(ictx, 0, 1, 1); 1584 if (n == -1) 1585 break; 1586 1587 m = screen_size_x(s) - s->cx; 1588 if (n > m) 1589 n = m; 1590 1591 if (~ictx->flags & INPUT_LAST) 1592 break; 1593 1594 set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set; 1595 if (set == 1) 1596 ictx->cell.cell.attr |= GRID_ATTR_CHARSET; 1597 else 1598 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1599 utf8_copy(&ictx->cell.cell.data, &ictx->last); 1600 for (i = 0; i < n; i++) 1601 screen_write_collect_add(sctx, &ictx->cell.cell); 1602 break; 1603 case INPUT_CSI_RCP: 1604 input_restore_state(ictx); 1605 break; 1606 case INPUT_CSI_RM: 1607 input_csi_dispatch_rm(ictx); 1608 break; 1609 case INPUT_CSI_RM_PRIVATE: 1610 input_csi_dispatch_rm_private(ictx); 1611 break; 1612 case INPUT_CSI_SCP: 1613 input_save_state(ictx); 1614 break; 1615 case INPUT_CSI_SGR: 1616 input_csi_dispatch_sgr(ictx); 1617 break; 1618 case INPUT_CSI_SM: 1619 input_csi_dispatch_sm(ictx); 1620 break; 1621 case INPUT_CSI_SM_PRIVATE: 1622 input_csi_dispatch_sm_private(ictx); 1623 break; 1624 case INPUT_CSI_SM_GRAPHICS: 1625 input_csi_dispatch_sm_graphics(ictx); 1626 break; 1627 case INPUT_CSI_SU: 1628 n = input_get(ictx, 0, 1, 1); 1629 if (n != -1) 1630 screen_write_scrollup(sctx, n, bg); 1631 break; 1632 case INPUT_CSI_SD: 1633 n = input_get(ictx, 0, 1, 1); 1634 if (n != -1) 1635 screen_write_scrolldown(sctx, n, bg); 1636 break; 1637 case INPUT_CSI_TBC: 1638 switch (input_get(ictx, 0, 0, 0)) { 1639 case -1: 1640 break; 1641 case 0: 1642 if (s->cx < screen_size_x(s)) 1643 bit_clear(s->tabs, s->cx); 1644 break; 1645 case 3: 1646 bit_nclear(s->tabs, 0, screen_size_x(s) - 1); 1647 break; 1648 default: 1649 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1650 break; 1651 } 1652 break; 1653 case INPUT_CSI_VPA: 1654 n = input_get(ictx, 0, 1, 1); 1655 if (n != -1) 1656 screen_write_cursormove(sctx, -1, n - 1, 1); 1657 break; 1658 case INPUT_CSI_DECSCUSR: 1659 n = input_get(ictx, 0, 0, 0); 1660 if (n != -1) 1661 screen_set_cursor_style(n, &s->cstyle, &s->mode); 1662 break; 1663 case INPUT_CSI_XDA: 1664 n = input_get(ictx, 0, 0, 0); 1665 if (n == 0) 1666 input_reply(ictx, "\033P>|tmux %s\033\\", getversion()); 1667 break; 1668 1669 } 1670 1671 ictx->flags &= ~INPUT_LAST; 1672 return (0); 1673 } 1674 1675 /* Handle CSI RM. */ 1676 static void 1677 input_csi_dispatch_rm(struct input_ctx *ictx) 1678 { 1679 struct screen_write_ctx *sctx = &ictx->ctx; 1680 u_int i; 1681 1682 for (i = 0; i < ictx->param_list_len; i++) { 1683 switch (input_get(ictx, i, 0, -1)) { 1684 case -1: 1685 break; 1686 case 4: /* IRM */ 1687 screen_write_mode_clear(sctx, MODE_INSERT); 1688 break; 1689 case 34: 1690 screen_write_mode_set(sctx, MODE_CURSOR_VERY_VISIBLE); 1691 break; 1692 default: 1693 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1694 break; 1695 } 1696 } 1697 } 1698 1699 /* Handle CSI private RM. */ 1700 static void 1701 input_csi_dispatch_rm_private(struct input_ctx *ictx) 1702 { 1703 struct screen_write_ctx *sctx = &ictx->ctx; 1704 struct grid_cell *gc = &ictx->cell.cell; 1705 u_int i; 1706 1707 for (i = 0; i < ictx->param_list_len; i++) { 1708 switch (input_get(ictx, i, 0, -1)) { 1709 case -1: 1710 break; 1711 case 1: /* DECCKM */ 1712 screen_write_mode_clear(sctx, MODE_KCURSOR); 1713 break; 1714 case 3: /* DECCOLM */ 1715 screen_write_cursormove(sctx, 0, 0, 1); 1716 screen_write_clearscreen(sctx, gc->bg); 1717 break; 1718 case 6: /* DECOM */ 1719 screen_write_mode_clear(sctx, MODE_ORIGIN); 1720 screen_write_cursormove(sctx, 0, 0, 1); 1721 break; 1722 case 7: /* DECAWM */ 1723 screen_write_mode_clear(sctx, MODE_WRAP); 1724 break; 1725 case 12: 1726 screen_write_mode_clear(sctx, MODE_CURSOR_BLINKING); 1727 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1728 break; 1729 case 25: /* TCEM */ 1730 screen_write_mode_clear(sctx, MODE_CURSOR); 1731 break; 1732 case 1000: 1733 case 1001: 1734 case 1002: 1735 case 1003: 1736 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1737 break; 1738 case 1004: 1739 screen_write_mode_clear(sctx, MODE_FOCUSON); 1740 break; 1741 case 1005: 1742 screen_write_mode_clear(sctx, MODE_MOUSE_UTF8); 1743 break; 1744 case 1006: 1745 screen_write_mode_clear(sctx, MODE_MOUSE_SGR); 1746 break; 1747 case 47: 1748 case 1047: 1749 screen_write_alternateoff(sctx, gc, 0); 1750 break; 1751 case 1049: 1752 screen_write_alternateoff(sctx, gc, 1); 1753 break; 1754 case 2004: 1755 screen_write_mode_clear(sctx, MODE_BRACKETPASTE); 1756 break; 1757 default: 1758 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1759 break; 1760 } 1761 } 1762 } 1763 1764 /* Handle CSI SM. */ 1765 static void 1766 input_csi_dispatch_sm(struct input_ctx *ictx) 1767 { 1768 struct screen_write_ctx *sctx = &ictx->ctx; 1769 u_int i; 1770 1771 for (i = 0; i < ictx->param_list_len; i++) { 1772 switch (input_get(ictx, i, 0, -1)) { 1773 case -1: 1774 break; 1775 case 4: /* IRM */ 1776 screen_write_mode_set(sctx, MODE_INSERT); 1777 break; 1778 case 34: 1779 screen_write_mode_clear(sctx, MODE_CURSOR_VERY_VISIBLE); 1780 break; 1781 default: 1782 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1783 break; 1784 } 1785 } 1786 } 1787 1788 /* Handle CSI private SM. */ 1789 static void 1790 input_csi_dispatch_sm_private(struct input_ctx *ictx) 1791 { 1792 struct screen_write_ctx *sctx = &ictx->ctx; 1793 struct grid_cell *gc = &ictx->cell.cell; 1794 u_int i; 1795 1796 for (i = 0; i < ictx->param_list_len; i++) { 1797 switch (input_get(ictx, i, 0, -1)) { 1798 case -1: 1799 break; 1800 case 1: /* DECCKM */ 1801 screen_write_mode_set(sctx, MODE_KCURSOR); 1802 break; 1803 case 3: /* DECCOLM */ 1804 screen_write_cursormove(sctx, 0, 0, 1); 1805 screen_write_clearscreen(sctx, ictx->cell.cell.bg); 1806 break; 1807 case 6: /* DECOM */ 1808 screen_write_mode_set(sctx, MODE_ORIGIN); 1809 screen_write_cursormove(sctx, 0, 0, 1); 1810 break; 1811 case 7: /* DECAWM */ 1812 screen_write_mode_set(sctx, MODE_WRAP); 1813 break; 1814 case 12: 1815 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING); 1816 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1817 break; 1818 case 25: /* TCEM */ 1819 screen_write_mode_set(sctx, MODE_CURSOR); 1820 break; 1821 case 1000: 1822 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1823 screen_write_mode_set(sctx, MODE_MOUSE_STANDARD); 1824 break; 1825 case 1002: 1826 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1827 screen_write_mode_set(sctx, MODE_MOUSE_BUTTON); 1828 break; 1829 case 1003: 1830 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1831 screen_write_mode_set(sctx, MODE_MOUSE_ALL); 1832 break; 1833 case 1004: 1834 screen_write_mode_set(sctx, MODE_FOCUSON); 1835 break; 1836 case 1005: 1837 screen_write_mode_set(sctx, MODE_MOUSE_UTF8); 1838 break; 1839 case 1006: 1840 screen_write_mode_set(sctx, MODE_MOUSE_SGR); 1841 break; 1842 case 47: 1843 case 1047: 1844 screen_write_alternateon(sctx, gc, 0); 1845 break; 1846 case 1049: 1847 screen_write_alternateon(sctx, gc, 1); 1848 break; 1849 case 2004: 1850 screen_write_mode_set(sctx, MODE_BRACKETPASTE); 1851 break; 1852 default: 1853 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1854 break; 1855 } 1856 } 1857 } 1858 1859 /* Handle CSI graphics SM. */ 1860 static void 1861 input_csi_dispatch_sm_graphics(__unused struct input_ctx *ictx) 1862 { 1863 } 1864 1865 /* Handle CSI window operations. */ 1866 static void 1867 input_csi_dispatch_winops(struct input_ctx *ictx) 1868 { 1869 struct screen_write_ctx *sctx = &ictx->ctx; 1870 struct screen *s = sctx->s; 1871 struct window_pane *wp = ictx->wp; 1872 struct window *w = NULL; 1873 u_int x = screen_size_x(s), y = screen_size_y(s); 1874 int n, m; 1875 1876 if (wp != NULL) 1877 w = wp->window; 1878 1879 m = 0; 1880 while ((n = input_get(ictx, m, 0, -1)) != -1) { 1881 switch (n) { 1882 case 1: 1883 case 2: 1884 case 5: 1885 case 6: 1886 case 7: 1887 case 11: 1888 case 13: 1889 case 20: 1890 case 21: 1891 case 24: 1892 break; 1893 case 3: 1894 case 4: 1895 case 8: 1896 m++; 1897 if (input_get(ictx, m, 0, -1) == -1) 1898 return; 1899 /* FALLTHROUGH */ 1900 case 9: 1901 case 10: 1902 m++; 1903 if (input_get(ictx, m, 0, -1) == -1) 1904 return; 1905 break; 1906 case 14: 1907 if (w == NULL) 1908 break; 1909 input_reply(ictx, "\033[4;%u;%ut", y * w->ypixel, 1910 x * w->xpixel); 1911 break; 1912 case 15: 1913 if (w == NULL) 1914 break; 1915 input_reply(ictx, "\033[5;%u;%ut", y * w->ypixel, 1916 x * w->xpixel); 1917 break; 1918 case 16: 1919 if (w == NULL) 1920 break; 1921 input_reply(ictx, "\033[6;%u;%ut", w->ypixel, 1922 w->xpixel); 1923 break; 1924 case 18: 1925 input_reply(ictx, "\033[8;%u;%ut", y, x); 1926 break; 1927 case 19: 1928 input_reply(ictx, "\033[9;%u;%ut", y, x); 1929 break; 1930 case 22: 1931 m++; 1932 switch (input_get(ictx, m, 0, -1)) { 1933 case -1: 1934 return; 1935 case 0: 1936 case 2: 1937 screen_push_title(sctx->s); 1938 break; 1939 } 1940 break; 1941 case 23: 1942 m++; 1943 switch (input_get(ictx, m, 0, -1)) { 1944 case -1: 1945 return; 1946 case 0: 1947 case 2: 1948 screen_pop_title(sctx->s); 1949 if (wp == NULL) 1950 break; 1951 notify_pane("pane-title-changed", wp); 1952 server_redraw_window_borders(w); 1953 server_status_window(w); 1954 break; 1955 } 1956 break; 1957 default: 1958 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1959 break; 1960 } 1961 m++; 1962 } 1963 } 1964 1965 /* Helper for 256 colour SGR. */ 1966 static int 1967 input_csi_dispatch_sgr_256_do(struct input_ctx *ictx, int fgbg, int c) 1968 { 1969 struct grid_cell *gc = &ictx->cell.cell; 1970 1971 if (c == -1 || c > 255) { 1972 if (fgbg == 38) 1973 gc->fg = 8; 1974 else if (fgbg == 48) 1975 gc->bg = 8; 1976 } else { 1977 if (fgbg == 38) 1978 gc->fg = c | COLOUR_FLAG_256; 1979 else if (fgbg == 48) 1980 gc->bg = c | COLOUR_FLAG_256; 1981 else if (fgbg == 58) 1982 gc->us = c | COLOUR_FLAG_256; 1983 } 1984 return (1); 1985 } 1986 1987 /* Handle CSI SGR for 256 colours. */ 1988 static void 1989 input_csi_dispatch_sgr_256(struct input_ctx *ictx, int fgbg, u_int *i) 1990 { 1991 int c; 1992 1993 c = input_get(ictx, (*i) + 1, 0, -1); 1994 if (input_csi_dispatch_sgr_256_do(ictx, fgbg, c)) 1995 (*i)++; 1996 } 1997 1998 /* Helper for RGB colour SGR. */ 1999 static int 2000 input_csi_dispatch_sgr_rgb_do(struct input_ctx *ictx, int fgbg, int r, int g, 2001 int b) 2002 { 2003 struct grid_cell *gc = &ictx->cell.cell; 2004 2005 if (r == -1 || r > 255) 2006 return (0); 2007 if (g == -1 || g > 255) 2008 return (0); 2009 if (b == -1 || b > 255) 2010 return (0); 2011 2012 if (fgbg == 38) 2013 gc->fg = colour_join_rgb(r, g, b); 2014 else if (fgbg == 48) 2015 gc->bg = colour_join_rgb(r, g, b); 2016 else if (fgbg == 58) 2017 gc->us = colour_join_rgb(r, g, b); 2018 return (1); 2019 } 2020 2021 /* Handle CSI SGR for RGB colours. */ 2022 static void 2023 input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i) 2024 { 2025 int r, g, b; 2026 2027 r = input_get(ictx, (*i) + 1, 0, -1); 2028 g = input_get(ictx, (*i) + 2, 0, -1); 2029 b = input_get(ictx, (*i) + 3, 0, -1); 2030 if (input_csi_dispatch_sgr_rgb_do(ictx, fgbg, r, g, b)) 2031 (*i) += 3; 2032 } 2033 2034 /* Handle CSI SGR with a ISO parameter. */ 2035 static void 2036 input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i) 2037 { 2038 struct grid_cell *gc = &ictx->cell.cell; 2039 char *s = ictx->param_list[i].str, *copy, *ptr, *out; 2040 int p[8]; 2041 u_int n; 2042 const char *errstr; 2043 2044 for (n = 0; n < nitems(p); n++) 2045 p[n] = -1; 2046 n = 0; 2047 2048 ptr = copy = xstrdup(s); 2049 while ((out = strsep(&ptr, ":")) != NULL) { 2050 if (*out != '\0') { 2051 p[n++] = strtonum(out, 0, INT_MAX, &errstr); 2052 if (errstr != NULL || n == nitems(p)) { 2053 free(copy); 2054 return; 2055 } 2056 } else { 2057 n++; 2058 if (n == nitems(p)) { 2059 free(copy); 2060 return; 2061 } 2062 } 2063 log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]); 2064 } 2065 free(copy); 2066 2067 if (n == 0) 2068 return; 2069 if (p[0] == 4) { 2070 if (n != 2) 2071 return; 2072 switch (p[1]) { 2073 case 0: 2074 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2075 break; 2076 case 1: 2077 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2078 gc->attr |= GRID_ATTR_UNDERSCORE; 2079 break; 2080 case 2: 2081 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2082 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2083 break; 2084 case 3: 2085 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2086 gc->attr |= GRID_ATTR_UNDERSCORE_3; 2087 break; 2088 case 4: 2089 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2090 gc->attr |= GRID_ATTR_UNDERSCORE_4; 2091 break; 2092 case 5: 2093 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2094 gc->attr |= GRID_ATTR_UNDERSCORE_5; 2095 break; 2096 } 2097 return; 2098 } 2099 if (n < 2 || (p[0] != 38 && p[0] != 48 && p[0] != 58)) 2100 return; 2101 switch (p[1]) { 2102 case 2: 2103 if (n < 3) 2104 break; 2105 if (n == 5) 2106 i = 2; 2107 else 2108 i = 3; 2109 if (n < i + 3) 2110 break; 2111 input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i], p[i + 1], 2112 p[i + 2]); 2113 break; 2114 case 5: 2115 if (n < 3) 2116 break; 2117 input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]); 2118 break; 2119 } 2120 } 2121 2122 /* Handle CSI SGR. */ 2123 static void 2124 input_csi_dispatch_sgr(struct input_ctx *ictx) 2125 { 2126 struct grid_cell *gc = &ictx->cell.cell; 2127 u_int i, link; 2128 int n; 2129 2130 if (ictx->param_list_len == 0) { 2131 memcpy(gc, &grid_default_cell, sizeof *gc); 2132 return; 2133 } 2134 2135 for (i = 0; i < ictx->param_list_len; i++) { 2136 if (ictx->param_list[i].type == INPUT_STRING) { 2137 input_csi_dispatch_sgr_colon(ictx, i); 2138 continue; 2139 } 2140 n = input_get(ictx, i, 0, 0); 2141 if (n == -1) 2142 continue; 2143 2144 if (n == 38 || n == 48 || n == 58) { 2145 i++; 2146 switch (input_get(ictx, i, 0, -1)) { 2147 case 2: 2148 input_csi_dispatch_sgr_rgb(ictx, n, &i); 2149 break; 2150 case 5: 2151 input_csi_dispatch_sgr_256(ictx, n, &i); 2152 break; 2153 } 2154 continue; 2155 } 2156 2157 switch (n) { 2158 case 0: 2159 link = gc->link; 2160 memcpy(gc, &grid_default_cell, sizeof *gc); 2161 gc->link = link; 2162 break; 2163 case 1: 2164 gc->attr |= GRID_ATTR_BRIGHT; 2165 break; 2166 case 2: 2167 gc->attr |= GRID_ATTR_DIM; 2168 break; 2169 case 3: 2170 gc->attr |= GRID_ATTR_ITALICS; 2171 break; 2172 case 4: 2173 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2174 gc->attr |= GRID_ATTR_UNDERSCORE; 2175 break; 2176 case 5: 2177 case 6: 2178 gc->attr |= GRID_ATTR_BLINK; 2179 break; 2180 case 7: 2181 gc->attr |= GRID_ATTR_REVERSE; 2182 break; 2183 case 8: 2184 gc->attr |= GRID_ATTR_HIDDEN; 2185 break; 2186 case 9: 2187 gc->attr |= GRID_ATTR_STRIKETHROUGH; 2188 break; 2189 case 21: 2190 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2191 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2192 break; 2193 case 22: 2194 gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM); 2195 break; 2196 case 23: 2197 gc->attr &= ~GRID_ATTR_ITALICS; 2198 break; 2199 case 24: 2200 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2201 break; 2202 case 25: 2203 gc->attr &= ~GRID_ATTR_BLINK; 2204 break; 2205 case 27: 2206 gc->attr &= ~GRID_ATTR_REVERSE; 2207 break; 2208 case 28: 2209 gc->attr &= ~GRID_ATTR_HIDDEN; 2210 break; 2211 case 29: 2212 gc->attr &= ~GRID_ATTR_STRIKETHROUGH; 2213 break; 2214 case 30: 2215 case 31: 2216 case 32: 2217 case 33: 2218 case 34: 2219 case 35: 2220 case 36: 2221 case 37: 2222 gc->fg = n - 30; 2223 break; 2224 case 39: 2225 gc->fg = 8; 2226 break; 2227 case 40: 2228 case 41: 2229 case 42: 2230 case 43: 2231 case 44: 2232 case 45: 2233 case 46: 2234 case 47: 2235 gc->bg = n - 40; 2236 break; 2237 case 49: 2238 gc->bg = 8; 2239 break; 2240 case 53: 2241 gc->attr |= GRID_ATTR_OVERLINE; 2242 break; 2243 case 55: 2244 gc->attr &= ~GRID_ATTR_OVERLINE; 2245 break; 2246 case 59: 2247 gc->us = 8; 2248 break; 2249 case 90: 2250 case 91: 2251 case 92: 2252 case 93: 2253 case 94: 2254 case 95: 2255 case 96: 2256 case 97: 2257 gc->fg = n; 2258 break; 2259 case 100: 2260 case 101: 2261 case 102: 2262 case 103: 2263 case 104: 2264 case 105: 2265 case 106: 2266 case 107: 2267 gc->bg = n - 10; 2268 break; 2269 } 2270 } 2271 } 2272 2273 /* End of input with BEL. */ 2274 static int 2275 input_end_bel(struct input_ctx *ictx) 2276 { 2277 log_debug("%s", __func__); 2278 2279 ictx->input_end = INPUT_END_BEL; 2280 2281 return (0); 2282 } 2283 2284 /* DCS string started. */ 2285 static void 2286 input_enter_dcs(struct input_ctx *ictx) 2287 { 2288 log_debug("%s", __func__); 2289 2290 input_clear(ictx); 2291 input_start_timer(ictx); 2292 ictx->flags &= ~INPUT_LAST; 2293 } 2294 2295 /* DCS terminator (ST) received. */ 2296 static int 2297 input_dcs_dispatch(struct input_ctx *ictx) 2298 { 2299 struct window_pane *wp = ictx->wp; 2300 struct screen_write_ctx *sctx = &ictx->ctx; 2301 u_char *buf = ictx->input_buf; 2302 size_t len = ictx->input_len; 2303 const char prefix[] = "tmux;"; 2304 const u_int prefixlen = (sizeof prefix) - 1; 2305 long long allow_passthrough = 0; 2306 2307 if (wp == NULL) 2308 return (0); 2309 if (ictx->flags & INPUT_DISCARD) { 2310 log_debug("%s: %zu bytes (discard)", __func__, len); 2311 return (0); 2312 } 2313 log_debug("%s: %zu bytes", __func__, len); 2314 2315 allow_passthrough = options_get_number(wp->options, "allow-passthrough"); 2316 if (!allow_passthrough) 2317 return (0); 2318 log_debug("%s: \"%s\"", __func__, buf); 2319 2320 if (len >= prefixlen && strncmp(buf, prefix, prefixlen) == 0) { 2321 screen_write_rawstring(sctx, buf + prefixlen, len - prefixlen, 2322 allow_passthrough == 2); 2323 } 2324 2325 return (0); 2326 } 2327 2328 /* OSC string started. */ 2329 static void 2330 input_enter_osc(struct input_ctx *ictx) 2331 { 2332 log_debug("%s", __func__); 2333 2334 input_clear(ictx); 2335 input_start_timer(ictx); 2336 ictx->flags &= ~INPUT_LAST; 2337 } 2338 2339 /* OSC terminator (ST) received. */ 2340 static void 2341 input_exit_osc(struct input_ctx *ictx) 2342 { 2343 struct screen_write_ctx *sctx = &ictx->ctx; 2344 struct window_pane *wp = ictx->wp; 2345 u_char *p = ictx->input_buf; 2346 u_int option; 2347 2348 if (ictx->flags & INPUT_DISCARD) 2349 return; 2350 if (ictx->input_len < 1 || *p < '0' || *p > '9') 2351 return; 2352 2353 log_debug("%s: \"%s\" (end %s)", __func__, p, 2354 ictx->input_end == INPUT_END_ST ? "ST" : "BEL"); 2355 2356 option = 0; 2357 while (*p >= '0' && *p <= '9') 2358 option = option * 10 + *p++ - '0'; 2359 if (*p != ';' && *p != '\0') 2360 return; 2361 if (*p == ';') 2362 p++; 2363 2364 switch (option) { 2365 case 0: 2366 case 2: 2367 if (wp != NULL && 2368 options_get_number(wp->options, "allow-set-title") && 2369 screen_set_title(sctx->s, p)) { 2370 notify_pane("pane-title-changed", wp); 2371 server_redraw_window_borders(wp->window); 2372 server_status_window(wp->window); 2373 } 2374 break; 2375 case 4: 2376 input_osc_4(ictx, p); 2377 break; 2378 case 7: 2379 if (utf8_isvalid(p)) { 2380 screen_set_path(sctx->s, p); 2381 if (wp != NULL) { 2382 server_redraw_window_borders(wp->window); 2383 server_status_window(wp->window); 2384 } 2385 } 2386 break; 2387 case 8: 2388 input_osc_8(ictx, p); 2389 break; 2390 case 10: 2391 input_osc_10(ictx, p); 2392 break; 2393 case 11: 2394 input_osc_11(ictx, p); 2395 break; 2396 case 12: 2397 input_osc_12(ictx, p); 2398 break; 2399 case 52: 2400 input_osc_52(ictx, p); 2401 break; 2402 case 104: 2403 input_osc_104(ictx, p); 2404 break; 2405 case 110: 2406 input_osc_110(ictx, p); 2407 break; 2408 case 111: 2409 input_osc_111(ictx, p); 2410 break; 2411 case 112: 2412 input_osc_112(ictx, p); 2413 break; 2414 case 133: 2415 input_osc_133(ictx, p); 2416 break; 2417 default: 2418 log_debug("%s: unknown '%u'", __func__, option); 2419 break; 2420 } 2421 } 2422 2423 /* APC string started. */ 2424 static void 2425 input_enter_apc(struct input_ctx *ictx) 2426 { 2427 log_debug("%s", __func__); 2428 2429 input_clear(ictx); 2430 input_start_timer(ictx); 2431 ictx->flags &= ~INPUT_LAST; 2432 } 2433 2434 /* APC terminator (ST) received. */ 2435 static void 2436 input_exit_apc(struct input_ctx *ictx) 2437 { 2438 struct screen_write_ctx *sctx = &ictx->ctx; 2439 struct window_pane *wp = ictx->wp; 2440 2441 if (ictx->flags & INPUT_DISCARD) 2442 return; 2443 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2444 2445 if (screen_set_title(sctx->s, ictx->input_buf) && wp != NULL) { 2446 notify_pane("pane-title-changed", wp); 2447 server_redraw_window_borders(wp->window); 2448 server_status_window(wp->window); 2449 } 2450 } 2451 2452 /* Rename string started. */ 2453 static void 2454 input_enter_rename(struct input_ctx *ictx) 2455 { 2456 log_debug("%s", __func__); 2457 2458 input_clear(ictx); 2459 input_start_timer(ictx); 2460 ictx->flags &= ~INPUT_LAST; 2461 } 2462 2463 /* Rename terminator (ST) received. */ 2464 static void 2465 input_exit_rename(struct input_ctx *ictx) 2466 { 2467 struct window_pane *wp = ictx->wp; 2468 struct window *w; 2469 struct options_entry *o; 2470 2471 if (wp == NULL) 2472 return; 2473 if (ictx->flags & INPUT_DISCARD) 2474 return; 2475 if (!options_get_number(ictx->wp->options, "allow-rename")) 2476 return; 2477 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2478 2479 if (!utf8_isvalid(ictx->input_buf)) 2480 return; 2481 w = wp->window; 2482 2483 if (ictx->input_len == 0) { 2484 o = options_get_only(w->options, "automatic-rename"); 2485 if (o != NULL) 2486 options_remove_or_default(o, -1, NULL); 2487 if (!options_get_number(w->options, "automatic-rename")) 2488 window_set_name(w, ""); 2489 } else { 2490 options_set_number(w->options, "automatic-rename", 0); 2491 window_set_name(w, ictx->input_buf); 2492 } 2493 server_redraw_window_borders(w); 2494 server_status_window(w); 2495 } 2496 2497 /* Open UTF-8 character. */ 2498 static int 2499 input_top_bit_set(struct input_ctx *ictx) 2500 { 2501 struct screen_write_ctx *sctx = &ictx->ctx; 2502 struct utf8_data *ud = &ictx->utf8data; 2503 2504 ictx->flags &= ~INPUT_LAST; 2505 2506 if (!ictx->utf8started) { 2507 if (utf8_open(ud, ictx->ch) != UTF8_MORE) 2508 return (0); 2509 ictx->utf8started = 1; 2510 return (0); 2511 } 2512 2513 switch (utf8_append(ud, ictx->ch)) { 2514 case UTF8_MORE: 2515 return (0); 2516 case UTF8_ERROR: 2517 ictx->utf8started = 0; 2518 return (0); 2519 case UTF8_DONE: 2520 break; 2521 } 2522 ictx->utf8started = 0; 2523 2524 log_debug("%s %hhu '%*s' (width %hhu)", __func__, ud->size, 2525 (int)ud->size, ud->data, ud->width); 2526 2527 utf8_copy(&ictx->cell.cell.data, ud); 2528 screen_write_collect_add(sctx, &ictx->cell.cell); 2529 2530 utf8_copy(&ictx->last, &ictx->cell.cell.data); 2531 ictx->flags |= INPUT_LAST; 2532 2533 return (0); 2534 } 2535 2536 /* Reply to a colour request. */ 2537 static void 2538 input_osc_colour_reply(struct input_ctx *ictx, u_int n, int c) 2539 { 2540 u_char r, g, b; 2541 const char *end; 2542 2543 if (c != -1) 2544 c = colour_force_rgb(c); 2545 if (c == -1) 2546 return; 2547 colour_split_rgb(c, &r, &g, &b); 2548 2549 if (ictx->input_end == INPUT_END_BEL) 2550 end = "\007"; 2551 else 2552 end = "\033\\"; 2553 input_reply(ictx, "\033]%u;rgb:%02hhx%02hhx/%02hhx%02hhx/%02hhx%02hhx%s", 2554 n, r, r, g, g, b, b, end); 2555 } 2556 2557 /* Handle the OSC 4 sequence for setting (multiple) palette entries. */ 2558 static void 2559 input_osc_4(struct input_ctx *ictx, const char *p) 2560 { 2561 char *copy, *s, *next = NULL; 2562 long idx; 2563 int c, bad = 0, redraw = 0; 2564 2565 copy = s = xstrdup(p); 2566 while (s != NULL && *s != '\0') { 2567 idx = strtol(s, &next, 10); 2568 if (*next++ != ';') { 2569 bad = 1; 2570 break; 2571 } 2572 if (idx < 0 || idx >= 256) { 2573 bad = 1; 2574 break; 2575 } 2576 2577 s = strsep(&next, ";"); 2578 if (strcmp(s, "?") == 0) { 2579 c = colour_palette_get(ictx->palette, idx); 2580 if (c != -1) 2581 input_osc_colour_reply(ictx, 4, c); 2582 continue; 2583 } 2584 if ((c = colour_parseX11(s)) == -1) { 2585 s = next; 2586 continue; 2587 } 2588 if (colour_palette_set(ictx->palette, idx, c)) 2589 redraw = 1; 2590 s = next; 2591 } 2592 if (bad) 2593 log_debug("bad OSC 4: %s", p); 2594 if (redraw) 2595 screen_write_fullredraw(&ictx->ctx); 2596 free(copy); 2597 } 2598 2599 /* Handle the OSC 8 sequence for embedding hyperlinks. */ 2600 static void 2601 input_osc_8(struct input_ctx *ictx, const char *p) 2602 { 2603 struct hyperlinks *hl = ictx->ctx.s->hyperlinks; 2604 struct grid_cell *gc = &ictx->cell.cell; 2605 const char *start, *end, *uri; 2606 char *id = NULL; 2607 2608 for (start = p; (end = strpbrk(start, ":;")) != NULL; start = end + 1) { 2609 if (end - start >= 4 && strncmp(start, "id=", 3) == 0) { 2610 if (id != NULL) 2611 goto bad; 2612 id = xstrndup(start + 3, end - start - 3); 2613 } 2614 2615 /* The first ; is the end of parameters and start of the URI. */ 2616 if (*end == ';') 2617 break; 2618 } 2619 if (end == NULL || *end != ';') 2620 goto bad; 2621 uri = end + 1; 2622 if (*uri == '\0') { 2623 gc->link = 0; 2624 free(id); 2625 return; 2626 } 2627 gc->link = hyperlinks_put(hl, uri, id); 2628 if (id == NULL) 2629 log_debug("hyperlink (anonymous) %s = %u", uri, gc->link); 2630 else 2631 log_debug("hyperlink (id=%s) %s = %u", id, uri, gc->link); 2632 free(id); 2633 return; 2634 2635 bad: 2636 log_debug("bad OSC 8 %s", p); 2637 free(id); 2638 } 2639 2640 /* 2641 * Get a client with a foreground for the pane. There isn't much to choose 2642 * between them so just use the first. 2643 */ 2644 static int 2645 input_get_fg_client(struct window_pane *wp) 2646 { 2647 struct window *w = wp->window; 2648 struct client *loop; 2649 2650 TAILQ_FOREACH(loop, &clients, entry) { 2651 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2652 continue; 2653 if (loop->session == NULL || !session_has(loop->session, w)) 2654 continue; 2655 if (loop->tty.fg == -1) 2656 continue; 2657 return (loop->tty.fg); 2658 } 2659 return (-1); 2660 } 2661 2662 /* Get a client with a background for the pane. */ 2663 static int 2664 input_get_bg_client(struct window_pane *wp) 2665 { 2666 struct window *w = wp->window; 2667 struct client *loop; 2668 2669 TAILQ_FOREACH(loop, &clients, entry) { 2670 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2671 continue; 2672 if (loop->session == NULL || !session_has(loop->session, w)) 2673 continue; 2674 if (loop->tty.bg == -1) 2675 continue; 2676 return (loop->tty.bg); 2677 } 2678 return (-1); 2679 } 2680 2681 /* 2682 * If any control mode client exists that has provided a bg color, return it. 2683 * Otherwise, return -1. 2684 */ 2685 static int 2686 input_get_bg_control_client(struct window_pane *wp) 2687 { 2688 struct client *c; 2689 2690 if (wp->control_bg == -1) 2691 return (-1); 2692 2693 TAILQ_FOREACH(c, &clients, entry) { 2694 if (c->flags & CLIENT_CONTROL) 2695 return (wp->control_bg); 2696 } 2697 return (-1); 2698 } 2699 2700 /* 2701 * If any control mode client exists that has provided a fg color, return it. 2702 * Otherwise, return -1. 2703 */ 2704 static int 2705 input_get_fg_control_client(struct window_pane *wp) 2706 { 2707 struct client *c; 2708 2709 if (wp->control_fg == -1) 2710 return (-1); 2711 2712 TAILQ_FOREACH(c, &clients, entry) { 2713 if (c->flags & CLIENT_CONTROL) 2714 return (wp->control_fg); 2715 } 2716 return (-1); 2717 } 2718 2719 /* Handle the OSC 10 sequence for setting and querying foreground colour. */ 2720 static void 2721 input_osc_10(struct input_ctx *ictx, const char *p) 2722 { 2723 struct window_pane *wp = ictx->wp; 2724 struct grid_cell defaults; 2725 int c; 2726 2727 if (strcmp(p, "?") == 0) { 2728 if (wp == NULL) 2729 return; 2730 c = input_get_fg_control_client(wp); 2731 if (c == -1) { 2732 tty_default_colours(&defaults, wp); 2733 if (COLOUR_DEFAULT(defaults.fg)) 2734 c = input_get_fg_client(wp); 2735 else 2736 c = defaults.fg; 2737 } 2738 input_osc_colour_reply(ictx, 10, c); 2739 return; 2740 } 2741 2742 if ((c = colour_parseX11(p)) == -1) { 2743 log_debug("bad OSC 10: %s", p); 2744 return; 2745 } 2746 if (ictx->palette != NULL) { 2747 ictx->palette->fg = c; 2748 if (wp != NULL) 2749 wp->flags |= PANE_STYLECHANGED; 2750 screen_write_fullredraw(&ictx->ctx); 2751 } 2752 } 2753 2754 /* Handle the OSC 110 sequence for resetting foreground colour. */ 2755 static void 2756 input_osc_110(struct input_ctx *ictx, const char *p) 2757 { 2758 struct window_pane *wp = ictx->wp; 2759 2760 if (*p != '\0') 2761 return; 2762 if (ictx->palette != NULL) { 2763 ictx->palette->fg = 8; 2764 if (wp != NULL) 2765 wp->flags |= PANE_STYLECHANGED; 2766 screen_write_fullredraw(&ictx->ctx); 2767 } 2768 } 2769 2770 /* Handle the OSC 11 sequence for setting and querying background colour. */ 2771 static void 2772 input_osc_11(struct input_ctx *ictx, const char *p) 2773 { 2774 struct window_pane *wp = ictx->wp; 2775 struct grid_cell defaults; 2776 int c; 2777 2778 if (strcmp(p, "?") == 0) { 2779 if (wp == NULL) 2780 return; 2781 c = input_get_bg_control_client(wp); 2782 if (c == -1) { 2783 tty_default_colours(&defaults, wp); 2784 if (COLOUR_DEFAULT(defaults.bg)) 2785 c = input_get_bg_client(wp); 2786 else 2787 c = defaults.bg; 2788 } 2789 input_osc_colour_reply(ictx, 11, c); 2790 return; 2791 } 2792 2793 if ((c = colour_parseX11(p)) == -1) { 2794 log_debug("bad OSC 11: %s", p); 2795 return; 2796 } 2797 if (ictx->palette != NULL) { 2798 ictx->palette->bg = c; 2799 if (wp != NULL) 2800 wp->flags |= PANE_STYLECHANGED; 2801 screen_write_fullredraw(&ictx->ctx); 2802 } 2803 } 2804 2805 /* Handle the OSC 111 sequence for resetting background colour. */ 2806 static void 2807 input_osc_111(struct input_ctx *ictx, const char *p) 2808 { 2809 struct window_pane *wp = ictx->wp; 2810 2811 if (*p != '\0') 2812 return; 2813 if (ictx->palette != NULL) { 2814 ictx->palette->bg = 8; 2815 if (wp != NULL) 2816 wp->flags |= PANE_STYLECHANGED; 2817 screen_write_fullredraw(&ictx->ctx); 2818 } 2819 } 2820 2821 /* Handle the OSC 12 sequence for setting and querying cursor colour. */ 2822 static void 2823 input_osc_12(struct input_ctx *ictx, const char *p) 2824 { 2825 struct window_pane *wp = ictx->wp; 2826 int c; 2827 2828 if (strcmp(p, "?") == 0) { 2829 if (wp != NULL) { 2830 c = ictx->ctx.s->ccolour; 2831 if (c == -1) 2832 c = ictx->ctx.s->default_ccolour; 2833 input_osc_colour_reply(ictx, 12, c); 2834 } 2835 return; 2836 } 2837 2838 if ((c = colour_parseX11(p)) == -1) { 2839 log_debug("bad OSC 12: %s", p); 2840 return; 2841 } 2842 screen_set_cursor_colour(ictx->ctx.s, c); 2843 } 2844 2845 /* Handle the OSC 112 sequence for resetting cursor colour. */ 2846 static void 2847 input_osc_112(struct input_ctx *ictx, const char *p) 2848 { 2849 if (*p == '\0') /* no arguments allowed */ 2850 screen_set_cursor_colour(ictx->ctx.s, -1); 2851 } 2852 2853 /* Handle the OSC 133 sequence. */ 2854 static void 2855 input_osc_133(struct input_ctx *ictx, const char *p) 2856 { 2857 struct grid *gd = ictx->ctx.s->grid; 2858 u_int line = ictx->ctx.s->cy + gd->hsize; 2859 struct grid_line *gl; 2860 2861 if (line > gd->hsize + gd->sy - 1) 2862 return; 2863 gl = grid_get_line(gd, line); 2864 2865 switch (*p) { 2866 case 'A': 2867 gl->flags |= GRID_LINE_START_PROMPT; 2868 break; 2869 case 'C': 2870 gl->flags |= GRID_LINE_START_OUTPUT; 2871 break; 2872 } 2873 } 2874 2875 /* Handle the OSC 52 sequence for setting the clipboard. */ 2876 static void 2877 input_osc_52(struct input_ctx *ictx, const char *p) 2878 { 2879 struct window_pane *wp = ictx->wp; 2880 char *end; 2881 const char *buf = NULL; 2882 size_t len = 0; 2883 u_char *out; 2884 int outlen, state; 2885 struct screen_write_ctx ctx; 2886 struct paste_buffer *pb; 2887 const char* allow = "cpqs01234567"; 2888 char flags[sizeof "cpqs01234567"] = ""; 2889 u_int i, j = 0; 2890 2891 if (wp == NULL) 2892 return; 2893 state = options_get_number(global_options, "set-clipboard"); 2894 if (state != 2) 2895 return; 2896 2897 if ((end = strchr(p, ';')) == NULL) 2898 return; 2899 end++; 2900 if (*end == '\0') 2901 return; 2902 log_debug("%s: %s", __func__, end); 2903 2904 for (i = 0; p + i != end; i++) { 2905 if (strchr(allow, p[i]) != NULL && strchr(flags, p[i]) == NULL) 2906 flags[j++] = p[i]; 2907 } 2908 log_debug("%s: %.*s %s", __func__, (int)(end - p - 1), p, flags); 2909 2910 if (strcmp(end, "?") == 0) { 2911 if ((pb = paste_get_top(NULL)) != NULL) 2912 buf = paste_buffer_data(pb, &len); 2913 if (ictx->input_end == INPUT_END_BEL) 2914 input_reply_clipboard(ictx->event, buf, len, "\007"); 2915 else 2916 input_reply_clipboard(ictx->event, buf, len, "\033\\"); 2917 return; 2918 } 2919 2920 len = (strlen(end) / 4) * 3; 2921 if (len == 0) 2922 return; 2923 2924 out = xmalloc(len); 2925 if ((outlen = b64_pton(end, out, len)) == -1) { 2926 free(out); 2927 return; 2928 } 2929 2930 screen_write_start_pane(&ctx, wp, NULL); 2931 screen_write_setselection(&ctx, flags, out, outlen); 2932 screen_write_stop(&ctx); 2933 notify_pane("pane-set-clipboard", wp); 2934 2935 paste_add(NULL, out, outlen); 2936 } 2937 2938 /* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */ 2939 static void 2940 input_osc_104(struct input_ctx *ictx, const char *p) 2941 { 2942 char *copy, *s; 2943 long idx; 2944 int bad = 0, redraw = 0; 2945 2946 if (*p == '\0') { 2947 colour_palette_clear(ictx->palette); 2948 screen_write_fullredraw(&ictx->ctx); 2949 return; 2950 } 2951 2952 copy = s = xstrdup(p); 2953 while (*s != '\0') { 2954 idx = strtol(s, &s, 10); 2955 if (*s != '\0' && *s != ';') { 2956 bad = 1; 2957 break; 2958 } 2959 if (idx < 0 || idx >= 256) { 2960 bad = 1; 2961 break; 2962 } 2963 if (colour_palette_set(ictx->palette, idx, -1)) 2964 redraw = 1; 2965 if (*s == ';') 2966 s++; 2967 } 2968 if (bad) 2969 log_debug("bad OSC 104: %s", p); 2970 if (redraw) 2971 screen_write_fullredraw(&ictx->ctx); 2972 free(copy); 2973 } 2974 2975 void 2976 input_reply_clipboard(struct bufferevent *bev, const char *buf, size_t len, 2977 const char *end) 2978 { 2979 char *out = NULL; 2980 int outlen = 0; 2981 2982 if (buf != NULL && len != 0) { 2983 if (len >= ((size_t)INT_MAX * 3 / 4) - 1) 2984 return; 2985 outlen = 4 * ((len + 2) / 3) + 1; 2986 out = xmalloc(outlen); 2987 if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) { 2988 free(out); 2989 return; 2990 } 2991 } 2992 2993 bufferevent_write(bev, "\033]52;;", 6); 2994 if (outlen != 0) 2995 bufferevent_write(bev, out, outlen); 2996 bufferevent_write(bev, end, strlen(end)); 2997 free(out); 2998 } 2999