1 /* $OpenBSD: input.c,v 1.210 2022/10/28 12:20:28 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 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 *); 147 148 /* Transition entry/exit handlers. */ 149 static void input_clear(struct input_ctx *); 150 static void input_ground(struct input_ctx *); 151 static void input_enter_dcs(struct input_ctx *); 152 static void input_enter_osc(struct input_ctx *); 153 static void input_exit_osc(struct input_ctx *); 154 static void input_enter_apc(struct input_ctx *); 155 static void input_exit_apc(struct input_ctx *); 156 static void input_enter_rename(struct input_ctx *); 157 static void input_exit_rename(struct input_ctx *); 158 159 /* Input state handlers. */ 160 static int input_print(struct input_ctx *); 161 static int input_intermediate(struct input_ctx *); 162 static int input_parameter(struct input_ctx *); 163 static int input_input(struct input_ctx *); 164 static int input_c0_dispatch(struct input_ctx *); 165 static int input_esc_dispatch(struct input_ctx *); 166 static int input_csi_dispatch(struct input_ctx *); 167 static void input_csi_dispatch_rm(struct input_ctx *); 168 static void input_csi_dispatch_rm_private(struct input_ctx *); 169 static void input_csi_dispatch_sm(struct input_ctx *); 170 static void input_csi_dispatch_sm_private(struct input_ctx *); 171 static void input_csi_dispatch_winops(struct input_ctx *); 172 static void input_csi_dispatch_sgr_256(struct input_ctx *, int, u_int *); 173 static void input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *); 174 static void input_csi_dispatch_sgr(struct input_ctx *); 175 static int input_dcs_dispatch(struct input_ctx *); 176 static int input_top_bit_set(struct input_ctx *); 177 static int input_end_bel(struct input_ctx *); 178 179 /* Command table comparison function. */ 180 static int input_table_compare(const void *, const void *); 181 182 /* Command table entry. */ 183 struct input_table_entry { 184 int ch; 185 const char *interm; 186 int type; 187 }; 188 189 /* Escape commands. */ 190 enum input_esc_type { 191 INPUT_ESC_DECALN, 192 INPUT_ESC_DECKPAM, 193 INPUT_ESC_DECKPNM, 194 INPUT_ESC_DECRC, 195 INPUT_ESC_DECSC, 196 INPUT_ESC_HTS, 197 INPUT_ESC_IND, 198 INPUT_ESC_NEL, 199 INPUT_ESC_RI, 200 INPUT_ESC_RIS, 201 INPUT_ESC_SCSG0_OFF, 202 INPUT_ESC_SCSG0_ON, 203 INPUT_ESC_SCSG1_OFF, 204 INPUT_ESC_SCSG1_ON, 205 INPUT_ESC_ST, 206 }; 207 208 /* Escape command table. */ 209 static const struct input_table_entry input_esc_table[] = { 210 { '0', "(", INPUT_ESC_SCSG0_ON }, 211 { '0', ")", INPUT_ESC_SCSG1_ON }, 212 { '7', "", INPUT_ESC_DECSC }, 213 { '8', "", INPUT_ESC_DECRC }, 214 { '8', "#", INPUT_ESC_DECALN }, 215 { '=', "", INPUT_ESC_DECKPAM }, 216 { '>', "", INPUT_ESC_DECKPNM }, 217 { 'B', "(", INPUT_ESC_SCSG0_OFF }, 218 { 'B', ")", INPUT_ESC_SCSG1_OFF }, 219 { 'D', "", INPUT_ESC_IND }, 220 { 'E', "", INPUT_ESC_NEL }, 221 { 'H', "", INPUT_ESC_HTS }, 222 { 'M', "", INPUT_ESC_RI }, 223 { '\\', "", INPUT_ESC_ST }, 224 { 'c', "", INPUT_ESC_RIS }, 225 }; 226 227 /* Control (CSI) commands. */ 228 enum input_csi_type { 229 INPUT_CSI_CBT, 230 INPUT_CSI_CNL, 231 INPUT_CSI_CPL, 232 INPUT_CSI_CUB, 233 INPUT_CSI_CUD, 234 INPUT_CSI_CUF, 235 INPUT_CSI_CUP, 236 INPUT_CSI_CUU, 237 INPUT_CSI_DA, 238 INPUT_CSI_DA_TWO, 239 INPUT_CSI_DCH, 240 INPUT_CSI_DECSCUSR, 241 INPUT_CSI_DECSTBM, 242 INPUT_CSI_DL, 243 INPUT_CSI_DSR, 244 INPUT_CSI_ECH, 245 INPUT_CSI_ED, 246 INPUT_CSI_EL, 247 INPUT_CSI_HPA, 248 INPUT_CSI_ICH, 249 INPUT_CSI_IL, 250 INPUT_CSI_MODOFF, 251 INPUT_CSI_MODSET, 252 INPUT_CSI_RCP, 253 INPUT_CSI_REP, 254 INPUT_CSI_RM, 255 INPUT_CSI_RM_PRIVATE, 256 INPUT_CSI_SCP, 257 INPUT_CSI_SD, 258 INPUT_CSI_SGR, 259 INPUT_CSI_SM, 260 INPUT_CSI_SM_PRIVATE, 261 INPUT_CSI_SU, 262 INPUT_CSI_TBC, 263 INPUT_CSI_VPA, 264 INPUT_CSI_WINOPS, 265 INPUT_CSI_XDA, 266 }; 267 268 /* Control (CSI) command table. */ 269 static const struct input_table_entry input_csi_table[] = { 270 { '@', "", INPUT_CSI_ICH }, 271 { 'A', "", INPUT_CSI_CUU }, 272 { 'B', "", INPUT_CSI_CUD }, 273 { 'C', "", INPUT_CSI_CUF }, 274 { 'D', "", INPUT_CSI_CUB }, 275 { 'E', "", INPUT_CSI_CNL }, 276 { 'F', "", INPUT_CSI_CPL }, 277 { 'G', "", INPUT_CSI_HPA }, 278 { 'H', "", INPUT_CSI_CUP }, 279 { 'J', "", INPUT_CSI_ED }, 280 { 'K', "", INPUT_CSI_EL }, 281 { 'L', "", INPUT_CSI_IL }, 282 { 'M', "", INPUT_CSI_DL }, 283 { 'P', "", INPUT_CSI_DCH }, 284 { 'S', "", INPUT_CSI_SU }, 285 { 'T', "", INPUT_CSI_SD }, 286 { 'X', "", INPUT_CSI_ECH }, 287 { 'Z', "", INPUT_CSI_CBT }, 288 { '`', "", INPUT_CSI_HPA }, 289 { 'b', "", INPUT_CSI_REP }, 290 { 'c', "", INPUT_CSI_DA }, 291 { 'c', ">", INPUT_CSI_DA_TWO }, 292 { 'd', "", INPUT_CSI_VPA }, 293 { 'f', "", INPUT_CSI_CUP }, 294 { 'g', "", INPUT_CSI_TBC }, 295 { 'h', "", INPUT_CSI_SM }, 296 { 'h', "?", INPUT_CSI_SM_PRIVATE }, 297 { 'l', "", INPUT_CSI_RM }, 298 { 'l', "?", INPUT_CSI_RM_PRIVATE }, 299 { 'm', "", INPUT_CSI_SGR }, 300 { 'm', ">", INPUT_CSI_MODSET }, 301 { 'n', "", INPUT_CSI_DSR }, 302 { 'n', ">", INPUT_CSI_MODOFF }, 303 { 'q', " ", INPUT_CSI_DECSCUSR }, 304 { 'q', ">", INPUT_CSI_XDA }, 305 { 'r', "", INPUT_CSI_DECSTBM }, 306 { 's', "", INPUT_CSI_SCP }, 307 { 't', "", INPUT_CSI_WINOPS }, 308 { 'u', "", INPUT_CSI_RCP }, 309 }; 310 311 /* Input transition. */ 312 struct input_transition { 313 int first; 314 int last; 315 316 int (*handler)(struct input_ctx *); 317 const struct input_state *state; 318 }; 319 320 /* Input state. */ 321 struct input_state { 322 const char *name; 323 void (*enter)(struct input_ctx *); 324 void (*exit)(struct input_ctx *); 325 const struct input_transition *transitions; 326 }; 327 328 /* State transitions available from all states. */ 329 #define INPUT_STATE_ANYWHERE \ 330 { 0x18, 0x18, input_c0_dispatch, &input_state_ground }, \ 331 { 0x1a, 0x1a, input_c0_dispatch, &input_state_ground }, \ 332 { 0x1b, 0x1b, NULL, &input_state_esc_enter } 333 334 /* Forward declarations of state tables. */ 335 static const struct input_transition input_state_ground_table[]; 336 static const struct input_transition input_state_esc_enter_table[]; 337 static const struct input_transition input_state_esc_intermediate_table[]; 338 static const struct input_transition input_state_csi_enter_table[]; 339 static const struct input_transition input_state_csi_parameter_table[]; 340 static const struct input_transition input_state_csi_intermediate_table[]; 341 static const struct input_transition input_state_csi_ignore_table[]; 342 static const struct input_transition input_state_dcs_enter_table[]; 343 static const struct input_transition input_state_dcs_parameter_table[]; 344 static const struct input_transition input_state_dcs_intermediate_table[]; 345 static const struct input_transition input_state_dcs_handler_table[]; 346 static const struct input_transition input_state_dcs_escape_table[]; 347 static const struct input_transition input_state_dcs_ignore_table[]; 348 static const struct input_transition input_state_osc_string_table[]; 349 static const struct input_transition input_state_apc_string_table[]; 350 static const struct input_transition input_state_rename_string_table[]; 351 static const struct input_transition input_state_consume_st_table[]; 352 353 /* ground state definition. */ 354 static const struct input_state input_state_ground = { 355 "ground", 356 input_ground, NULL, 357 input_state_ground_table 358 }; 359 360 /* esc_enter state definition. */ 361 static const struct input_state input_state_esc_enter = { 362 "esc_enter", 363 input_clear, NULL, 364 input_state_esc_enter_table 365 }; 366 367 /* esc_intermediate state definition. */ 368 static const struct input_state input_state_esc_intermediate = { 369 "esc_intermediate", 370 NULL, NULL, 371 input_state_esc_intermediate_table 372 }; 373 374 /* csi_enter state definition. */ 375 static const struct input_state input_state_csi_enter = { 376 "csi_enter", 377 input_clear, NULL, 378 input_state_csi_enter_table 379 }; 380 381 /* csi_parameter state definition. */ 382 static const struct input_state input_state_csi_parameter = { 383 "csi_parameter", 384 NULL, NULL, 385 input_state_csi_parameter_table 386 }; 387 388 /* csi_intermediate state definition. */ 389 static const struct input_state input_state_csi_intermediate = { 390 "csi_intermediate", 391 NULL, NULL, 392 input_state_csi_intermediate_table 393 }; 394 395 /* csi_ignore state definition. */ 396 static const struct input_state input_state_csi_ignore = { 397 "csi_ignore", 398 NULL, NULL, 399 input_state_csi_ignore_table 400 }; 401 402 /* dcs_enter state definition. */ 403 static const struct input_state input_state_dcs_enter = { 404 "dcs_enter", 405 input_enter_dcs, NULL, 406 input_state_dcs_enter_table 407 }; 408 409 /* dcs_parameter state definition. */ 410 static const struct input_state input_state_dcs_parameter = { 411 "dcs_parameter", 412 NULL, NULL, 413 input_state_dcs_parameter_table 414 }; 415 416 /* dcs_intermediate state definition. */ 417 static const struct input_state input_state_dcs_intermediate = { 418 "dcs_intermediate", 419 NULL, NULL, 420 input_state_dcs_intermediate_table 421 }; 422 423 /* dcs_handler state definition. */ 424 static const struct input_state input_state_dcs_handler = { 425 "dcs_handler", 426 NULL, NULL, 427 input_state_dcs_handler_table 428 }; 429 430 /* dcs_escape state definition. */ 431 static const struct input_state input_state_dcs_escape = { 432 "dcs_escape", 433 NULL, NULL, 434 input_state_dcs_escape_table 435 }; 436 437 /* dcs_ignore state definition. */ 438 static const struct input_state input_state_dcs_ignore = { 439 "dcs_ignore", 440 NULL, NULL, 441 input_state_dcs_ignore_table 442 }; 443 444 /* osc_string state definition. */ 445 static const struct input_state input_state_osc_string = { 446 "osc_string", 447 input_enter_osc, input_exit_osc, 448 input_state_osc_string_table 449 }; 450 451 /* apc_string state definition. */ 452 static const struct input_state input_state_apc_string = { 453 "apc_string", 454 input_enter_apc, input_exit_apc, 455 input_state_apc_string_table 456 }; 457 458 /* rename_string state definition. */ 459 static const struct input_state input_state_rename_string = { 460 "rename_string", 461 input_enter_rename, input_exit_rename, 462 input_state_rename_string_table 463 }; 464 465 /* consume_st state definition. */ 466 static const struct input_state input_state_consume_st = { 467 "consume_st", 468 input_enter_rename, NULL, /* rename also waits for ST */ 469 input_state_consume_st_table 470 }; 471 472 /* ground state table. */ 473 static const struct input_transition input_state_ground_table[] = { 474 INPUT_STATE_ANYWHERE, 475 476 { 0x00, 0x17, input_c0_dispatch, NULL }, 477 { 0x19, 0x19, input_c0_dispatch, NULL }, 478 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 479 { 0x20, 0x7e, input_print, NULL }, 480 { 0x7f, 0x7f, NULL, NULL }, 481 { 0x80, 0xff, input_top_bit_set, NULL }, 482 483 { -1, -1, NULL, NULL } 484 }; 485 486 /* esc_enter state table. */ 487 static const struct input_transition input_state_esc_enter_table[] = { 488 INPUT_STATE_ANYWHERE, 489 490 { 0x00, 0x17, input_c0_dispatch, NULL }, 491 { 0x19, 0x19, input_c0_dispatch, NULL }, 492 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 493 { 0x20, 0x2f, input_intermediate, &input_state_esc_intermediate }, 494 { 0x30, 0x4f, input_esc_dispatch, &input_state_ground }, 495 { 0x50, 0x50, NULL, &input_state_dcs_enter }, 496 { 0x51, 0x57, input_esc_dispatch, &input_state_ground }, 497 { 0x58, 0x58, NULL, &input_state_consume_st }, 498 { 0x59, 0x59, input_esc_dispatch, &input_state_ground }, 499 { 0x5a, 0x5a, input_esc_dispatch, &input_state_ground }, 500 { 0x5b, 0x5b, NULL, &input_state_csi_enter }, 501 { 0x5c, 0x5c, input_esc_dispatch, &input_state_ground }, 502 { 0x5d, 0x5d, NULL, &input_state_osc_string }, 503 { 0x5e, 0x5e, NULL, &input_state_consume_st }, 504 { 0x5f, 0x5f, NULL, &input_state_apc_string }, 505 { 0x60, 0x6a, input_esc_dispatch, &input_state_ground }, 506 { 0x6b, 0x6b, NULL, &input_state_rename_string }, 507 { 0x6c, 0x7e, input_esc_dispatch, &input_state_ground }, 508 { 0x7f, 0xff, NULL, NULL }, 509 510 { -1, -1, NULL, NULL } 511 }; 512 513 /* esc_intermediate state table. */ 514 static const struct input_transition input_state_esc_intermediate_table[] = { 515 INPUT_STATE_ANYWHERE, 516 517 { 0x00, 0x17, input_c0_dispatch, NULL }, 518 { 0x19, 0x19, input_c0_dispatch, NULL }, 519 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 520 { 0x20, 0x2f, input_intermediate, NULL }, 521 { 0x30, 0x7e, input_esc_dispatch, &input_state_ground }, 522 { 0x7f, 0xff, NULL, NULL }, 523 524 { -1, -1, NULL, NULL } 525 }; 526 527 /* csi_enter state table. */ 528 static const struct input_transition input_state_csi_enter_table[] = { 529 INPUT_STATE_ANYWHERE, 530 531 { 0x00, 0x17, input_c0_dispatch, NULL }, 532 { 0x19, 0x19, input_c0_dispatch, NULL }, 533 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 534 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 535 { 0x30, 0x39, input_parameter, &input_state_csi_parameter }, 536 { 0x3a, 0x3a, input_parameter, &input_state_csi_parameter }, 537 { 0x3b, 0x3b, input_parameter, &input_state_csi_parameter }, 538 { 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter }, 539 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 540 { 0x7f, 0xff, NULL, NULL }, 541 542 { -1, -1, NULL, NULL } 543 }; 544 545 /* csi_parameter state table. */ 546 static const struct input_transition input_state_csi_parameter_table[] = { 547 INPUT_STATE_ANYWHERE, 548 549 { 0x00, 0x17, input_c0_dispatch, NULL }, 550 { 0x19, 0x19, input_c0_dispatch, NULL }, 551 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 552 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 553 { 0x30, 0x39, input_parameter, NULL }, 554 { 0x3a, 0x3a, input_parameter, NULL }, 555 { 0x3b, 0x3b, input_parameter, NULL }, 556 { 0x3c, 0x3f, NULL, &input_state_csi_ignore }, 557 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 558 { 0x7f, 0xff, NULL, NULL }, 559 560 { -1, -1, NULL, NULL } 561 }; 562 563 /* csi_intermediate state table. */ 564 static const struct input_transition input_state_csi_intermediate_table[] = { 565 INPUT_STATE_ANYWHERE, 566 567 { 0x00, 0x17, input_c0_dispatch, NULL }, 568 { 0x19, 0x19, input_c0_dispatch, NULL }, 569 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 570 { 0x20, 0x2f, input_intermediate, NULL }, 571 { 0x30, 0x3f, NULL, &input_state_csi_ignore }, 572 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 573 { 0x7f, 0xff, NULL, NULL }, 574 575 { -1, -1, NULL, NULL } 576 }; 577 578 /* csi_ignore state table. */ 579 static const struct input_transition input_state_csi_ignore_table[] = { 580 INPUT_STATE_ANYWHERE, 581 582 { 0x00, 0x17, input_c0_dispatch, NULL }, 583 { 0x19, 0x19, input_c0_dispatch, NULL }, 584 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 585 { 0x20, 0x3f, NULL, NULL }, 586 { 0x40, 0x7e, NULL, &input_state_ground }, 587 { 0x7f, 0xff, NULL, NULL }, 588 589 { -1, -1, NULL, NULL } 590 }; 591 592 /* dcs_enter state table. */ 593 static const struct input_transition input_state_dcs_enter_table[] = { 594 INPUT_STATE_ANYWHERE, 595 596 { 0x00, 0x17, NULL, NULL }, 597 { 0x19, 0x19, NULL, NULL }, 598 { 0x1c, 0x1f, NULL, NULL }, 599 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 600 { 0x30, 0x39, input_parameter, &input_state_dcs_parameter }, 601 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 602 { 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter }, 603 { 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter }, 604 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 605 { 0x7f, 0xff, NULL, NULL }, 606 607 { -1, -1, NULL, NULL } 608 }; 609 610 /* dcs_parameter state table. */ 611 static const struct input_transition input_state_dcs_parameter_table[] = { 612 INPUT_STATE_ANYWHERE, 613 614 { 0x00, 0x17, NULL, NULL }, 615 { 0x19, 0x19, NULL, NULL }, 616 { 0x1c, 0x1f, NULL, NULL }, 617 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 618 { 0x30, 0x39, input_parameter, NULL }, 619 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 620 { 0x3b, 0x3b, input_parameter, NULL }, 621 { 0x3c, 0x3f, NULL, &input_state_dcs_ignore }, 622 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 623 { 0x7f, 0xff, NULL, NULL }, 624 625 { -1, -1, NULL, NULL } 626 }; 627 628 /* dcs_intermediate state table. */ 629 static const struct input_transition input_state_dcs_intermediate_table[] = { 630 INPUT_STATE_ANYWHERE, 631 632 { 0x00, 0x17, NULL, NULL }, 633 { 0x19, 0x19, NULL, NULL }, 634 { 0x1c, 0x1f, NULL, NULL }, 635 { 0x20, 0x2f, input_intermediate, NULL }, 636 { 0x30, 0x3f, NULL, &input_state_dcs_ignore }, 637 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 638 { 0x7f, 0xff, NULL, NULL }, 639 640 { -1, -1, NULL, NULL } 641 }; 642 643 /* dcs_handler state table. */ 644 static const struct input_transition input_state_dcs_handler_table[] = { 645 /* No INPUT_STATE_ANYWHERE */ 646 647 { 0x00, 0x1a, input_input, NULL }, 648 { 0x1b, 0x1b, NULL, &input_state_dcs_escape }, 649 { 0x1c, 0xff, input_input, NULL }, 650 651 { -1, -1, NULL, NULL } 652 }; 653 654 /* dcs_escape state table. */ 655 static const struct input_transition input_state_dcs_escape_table[] = { 656 /* No INPUT_STATE_ANYWHERE */ 657 658 { 0x00, 0x5b, input_input, &input_state_dcs_handler }, 659 { 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground }, 660 { 0x5d, 0xff, input_input, &input_state_dcs_handler }, 661 662 { -1, -1, NULL, NULL } 663 }; 664 665 /* dcs_ignore state table. */ 666 static const struct input_transition input_state_dcs_ignore_table[] = { 667 INPUT_STATE_ANYWHERE, 668 669 { 0x00, 0x17, NULL, NULL }, 670 { 0x19, 0x19, NULL, NULL }, 671 { 0x1c, 0x1f, NULL, NULL }, 672 { 0x20, 0xff, NULL, NULL }, 673 674 { -1, -1, NULL, NULL } 675 }; 676 677 /* osc_string state table. */ 678 static const struct input_transition input_state_osc_string_table[] = { 679 INPUT_STATE_ANYWHERE, 680 681 { 0x00, 0x06, NULL, NULL }, 682 { 0x07, 0x07, input_end_bel, &input_state_ground }, 683 { 0x08, 0x17, NULL, NULL }, 684 { 0x19, 0x19, NULL, NULL }, 685 { 0x1c, 0x1f, NULL, NULL }, 686 { 0x20, 0xff, input_input, NULL }, 687 688 { -1, -1, NULL, NULL } 689 }; 690 691 /* apc_string state table. */ 692 static const struct input_transition input_state_apc_string_table[] = { 693 INPUT_STATE_ANYWHERE, 694 695 { 0x00, 0x17, NULL, NULL }, 696 { 0x19, 0x19, NULL, NULL }, 697 { 0x1c, 0x1f, NULL, NULL }, 698 { 0x20, 0xff, input_input, NULL }, 699 700 { -1, -1, NULL, NULL } 701 }; 702 703 /* rename_string state table. */ 704 static const struct input_transition input_state_rename_string_table[] = { 705 INPUT_STATE_ANYWHERE, 706 707 { 0x00, 0x17, NULL, NULL }, 708 { 0x19, 0x19, NULL, NULL }, 709 { 0x1c, 0x1f, NULL, NULL }, 710 { 0x20, 0xff, input_input, NULL }, 711 712 { -1, -1, NULL, NULL } 713 }; 714 715 /* consume_st state table. */ 716 static const struct input_transition input_state_consume_st_table[] = { 717 INPUT_STATE_ANYWHERE, 718 719 { 0x00, 0x17, NULL, NULL }, 720 { 0x19, 0x19, NULL, NULL }, 721 { 0x1c, 0x1f, NULL, NULL }, 722 { 0x20, 0xff, NULL, NULL }, 723 724 { -1, -1, NULL, NULL } 725 }; 726 727 /* Input table compare. */ 728 static int 729 input_table_compare(const void *key, const void *value) 730 { 731 const struct input_ctx *ictx = key; 732 const struct input_table_entry *entry = value; 733 734 if (ictx->ch != entry->ch) 735 return (ictx->ch - entry->ch); 736 return (strcmp(ictx->interm_buf, entry->interm)); 737 } 738 739 /* 740 * Timer - if this expires then have been waiting for a terminator for too 741 * long, so reset to ground. 742 */ 743 static void 744 input_timer_callback(__unused int fd, __unused short events, void *arg) 745 { 746 struct input_ctx *ictx = arg; 747 748 log_debug("%s: %s expired" , __func__, ictx->state->name); 749 input_reset(ictx, 0); 750 } 751 752 /* Start the timer. */ 753 static void 754 input_start_timer(struct input_ctx *ictx) 755 { 756 struct timeval tv = { .tv_sec = 5, .tv_usec = 0 }; 757 758 event_del(&ictx->timer); 759 event_add(&ictx->timer, &tv); 760 } 761 762 /* Reset cell state to default. */ 763 static void 764 input_reset_cell(struct input_ctx *ictx) 765 { 766 memcpy(&ictx->cell.cell, &grid_default_cell, sizeof ictx->cell.cell); 767 ictx->cell.set = 0; 768 ictx->cell.g0set = ictx->cell.g1set = 0; 769 770 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 771 ictx->old_cx = 0; 772 ictx->old_cy = 0; 773 } 774 775 /* Save screen state. */ 776 static void 777 input_save_state(struct input_ctx *ictx) 778 { 779 struct screen_write_ctx *sctx = &ictx->ctx; 780 struct screen *s = sctx->s; 781 782 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 783 ictx->old_cx = s->cx; 784 ictx->old_cy = s->cy; 785 ictx->old_mode = s->mode; 786 } 787 788 /* Restore screen state. */ 789 static void 790 input_restore_state(struct input_ctx *ictx) 791 { 792 struct screen_write_ctx *sctx = &ictx->ctx; 793 794 memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell); 795 if (ictx->old_mode & MODE_ORIGIN) 796 screen_write_mode_set(sctx, MODE_ORIGIN); 797 else 798 screen_write_mode_clear(sctx, MODE_ORIGIN); 799 screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy, 0); 800 } 801 802 /* Initialise input parser. */ 803 struct input_ctx * 804 input_init(struct window_pane *wp, struct bufferevent *bev, 805 struct colour_palette *palette) 806 { 807 struct input_ctx *ictx; 808 809 ictx = xcalloc(1, sizeof *ictx); 810 ictx->wp = wp; 811 ictx->event = bev; 812 ictx->palette = palette; 813 814 ictx->input_space = INPUT_BUF_START; 815 ictx->input_buf = xmalloc(INPUT_BUF_START); 816 817 ictx->since_ground = evbuffer_new(); 818 if (ictx->since_ground == NULL) 819 fatalx("out of memory"); 820 821 evtimer_set(&ictx->timer, input_timer_callback, ictx); 822 823 input_reset(ictx, 0); 824 return (ictx); 825 } 826 827 /* Destroy input parser. */ 828 void 829 input_free(struct input_ctx *ictx) 830 { 831 u_int i; 832 833 for (i = 0; i < ictx->param_list_len; i++) { 834 if (ictx->param_list[i].type == INPUT_STRING) 835 free(ictx->param_list[i].str); 836 } 837 838 event_del(&ictx->timer); 839 840 free(ictx->input_buf); 841 evbuffer_free(ictx->since_ground); 842 843 free(ictx); 844 } 845 846 /* Reset input state and clear screen. */ 847 void 848 input_reset(struct input_ctx *ictx, int clear) 849 { 850 struct screen_write_ctx *sctx = &ictx->ctx; 851 struct window_pane *wp = ictx->wp; 852 853 input_reset_cell(ictx); 854 855 if (clear && wp != NULL) { 856 if (TAILQ_EMPTY(&wp->modes)) 857 screen_write_start_pane(sctx, wp, &wp->base); 858 else 859 screen_write_start(sctx, &wp->base); 860 screen_write_reset(sctx); 861 screen_write_stop(sctx); 862 } 863 864 input_clear(ictx); 865 866 ictx->last = -1; 867 868 ictx->state = &input_state_ground; 869 ictx->flags = 0; 870 } 871 872 /* Return pending data. */ 873 struct evbuffer * 874 input_pending(struct input_ctx *ictx) 875 { 876 return (ictx->since_ground); 877 } 878 879 /* Change input state. */ 880 static void 881 input_set_state(struct input_ctx *ictx, const struct input_transition *itr) 882 { 883 if (ictx->state->exit != NULL) 884 ictx->state->exit(ictx); 885 ictx->state = itr->state; 886 if (ictx->state->enter != NULL) 887 ictx->state->enter(ictx); 888 } 889 890 /* Parse data. */ 891 static void 892 input_parse(struct input_ctx *ictx, u_char *buf, size_t len) 893 { 894 struct screen_write_ctx *sctx = &ictx->ctx; 895 const struct input_state *state = NULL; 896 const struct input_transition *itr = NULL; 897 size_t off = 0; 898 899 /* Parse the input. */ 900 while (off < len) { 901 ictx->ch = buf[off++]; 902 903 /* Find the transition. */ 904 if (ictx->state != state || 905 itr == NULL || 906 ictx->ch < itr->first || 907 ictx->ch > itr->last) { 908 itr = ictx->state->transitions; 909 while (itr->first != -1 && itr->last != -1) { 910 if (ictx->ch >= itr->first && 911 ictx->ch <= itr->last) 912 break; 913 itr++; 914 } 915 if (itr->first == -1 || itr->last == -1) { 916 /* No transition? Eh? */ 917 fatalx("no transition from state"); 918 } 919 } 920 state = ictx->state; 921 922 /* 923 * Any state except print stops the current collection. This is 924 * an optimization to avoid checking if the attributes have 925 * changed for every character. It will stop unnecessarily for 926 * sequences that don't make a terminal change, but they should 927 * be the minority. 928 */ 929 if (itr->handler != input_print) 930 screen_write_collect_end(sctx); 931 932 /* 933 * Execute the handler, if any. Don't switch state if it 934 * returns non-zero. 935 */ 936 if (itr->handler != NULL && itr->handler(ictx) != 0) 937 continue; 938 939 /* And switch state, if necessary. */ 940 if (itr->state != NULL) 941 input_set_state(ictx, itr); 942 943 /* If not in ground state, save input. */ 944 if (ictx->state != &input_state_ground) 945 evbuffer_add(ictx->since_ground, &ictx->ch, 1); 946 } 947 } 948 949 /* Parse input from pane. */ 950 void 951 input_parse_pane(struct window_pane *wp) 952 { 953 void *new_data; 954 size_t new_size; 955 956 new_data = window_pane_get_new_data(wp, &wp->offset, &new_size); 957 input_parse_buffer(wp, new_data, new_size); 958 window_pane_update_used_data(wp, &wp->offset, new_size); 959 } 960 961 /* Parse given input. */ 962 void 963 input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len) 964 { 965 struct input_ctx *ictx = wp->ictx; 966 struct screen_write_ctx *sctx = &ictx->ctx; 967 968 if (len == 0) 969 return; 970 971 window_update_activity(wp->window); 972 wp->flags |= PANE_CHANGED; 973 974 /* NULL wp if there is a mode set as don't want to update the tty. */ 975 if (TAILQ_EMPTY(&wp->modes)) 976 screen_write_start_pane(sctx, wp, &wp->base); 977 else 978 screen_write_start(sctx, &wp->base); 979 980 log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id, 981 ictx->state->name, len, (int)len, buf); 982 983 input_parse(ictx, buf, len); 984 screen_write_stop(sctx); 985 } 986 987 /* Parse given input for screen. */ 988 void 989 input_parse_screen(struct input_ctx *ictx, struct screen *s, 990 screen_write_init_ctx_cb cb, void *arg, u_char *buf, size_t len) 991 { 992 struct screen_write_ctx *sctx = &ictx->ctx; 993 994 if (len == 0) 995 return; 996 997 screen_write_start_callback(sctx, s, cb, arg); 998 input_parse(ictx, buf, len); 999 screen_write_stop(sctx); 1000 } 1001 1002 /* Split the parameter list (if any). */ 1003 static int 1004 input_split(struct input_ctx *ictx) 1005 { 1006 const char *errstr; 1007 char *ptr, *out; 1008 struct input_param *ip; 1009 u_int i; 1010 1011 for (i = 0; i < ictx->param_list_len; i++) { 1012 if (ictx->param_list[i].type == INPUT_STRING) 1013 free(ictx->param_list[i].str); 1014 } 1015 ictx->param_list_len = 0; 1016 1017 if (ictx->param_len == 0) 1018 return (0); 1019 ip = &ictx->param_list[0]; 1020 1021 ptr = ictx->param_buf; 1022 while ((out = strsep(&ptr, ";")) != NULL) { 1023 if (*out == '\0') 1024 ip->type = INPUT_MISSING; 1025 else { 1026 if (strchr(out, ':') != NULL) { 1027 ip->type = INPUT_STRING; 1028 ip->str = xstrdup(out); 1029 } else { 1030 ip->type = INPUT_NUMBER; 1031 ip->num = strtonum(out, 0, INT_MAX, &errstr); 1032 if (errstr != NULL) 1033 return (-1); 1034 } 1035 } 1036 ip = &ictx->param_list[++ictx->param_list_len]; 1037 if (ictx->param_list_len == nitems(ictx->param_list)) 1038 return (-1); 1039 } 1040 1041 for (i = 0; i < ictx->param_list_len; i++) { 1042 ip = &ictx->param_list[i]; 1043 if (ip->type == INPUT_MISSING) 1044 log_debug("parameter %u: missing", i); 1045 else if (ip->type == INPUT_STRING) 1046 log_debug("parameter %u: string %s", i, ip->str); 1047 else if (ip->type == INPUT_NUMBER) 1048 log_debug("parameter %u: number %d", i, ip->num); 1049 } 1050 1051 return (0); 1052 } 1053 1054 /* Get an argument or return default value. */ 1055 static int 1056 input_get(struct input_ctx *ictx, u_int validx, int minval, int defval) 1057 { 1058 struct input_param *ip; 1059 int retval; 1060 1061 if (validx >= ictx->param_list_len) 1062 return (defval); 1063 ip = &ictx->param_list[validx]; 1064 if (ip->type == INPUT_MISSING) 1065 return (defval); 1066 if (ip->type == INPUT_STRING) 1067 return (-1); 1068 retval = ip->num; 1069 if (retval < minval) 1070 return (minval); 1071 return (retval); 1072 } 1073 1074 /* Reply to terminal query. */ 1075 static void 1076 input_reply(struct input_ctx *ictx, const char *fmt, ...) 1077 { 1078 struct bufferevent *bev = ictx->event; 1079 va_list ap; 1080 char *reply; 1081 1082 if (bev == NULL) 1083 return; 1084 1085 va_start(ap, fmt); 1086 xvasprintf(&reply, fmt, ap); 1087 va_end(ap); 1088 1089 bufferevent_write(bev, reply, strlen(reply)); 1090 free(reply); 1091 } 1092 1093 /* Clear saved state. */ 1094 static void 1095 input_clear(struct input_ctx *ictx) 1096 { 1097 event_del(&ictx->timer); 1098 1099 *ictx->interm_buf = '\0'; 1100 ictx->interm_len = 0; 1101 1102 *ictx->param_buf = '\0'; 1103 ictx->param_len = 0; 1104 1105 *ictx->input_buf = '\0'; 1106 ictx->input_len = 0; 1107 1108 ictx->input_end = INPUT_END_ST; 1109 1110 ictx->flags &= ~INPUT_DISCARD; 1111 } 1112 1113 /* Reset for ground state. */ 1114 static void 1115 input_ground(struct input_ctx *ictx) 1116 { 1117 event_del(&ictx->timer); 1118 evbuffer_drain(ictx->since_ground, EVBUFFER_LENGTH(ictx->since_ground)); 1119 1120 if (ictx->input_space > INPUT_BUF_START) { 1121 ictx->input_space = INPUT_BUF_START; 1122 ictx->input_buf = xrealloc(ictx->input_buf, INPUT_BUF_START); 1123 } 1124 } 1125 1126 /* Output this character to the screen. */ 1127 static int 1128 input_print(struct input_ctx *ictx) 1129 { 1130 struct screen_write_ctx *sctx = &ictx->ctx; 1131 int set; 1132 1133 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1134 1135 set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set; 1136 if (set == 1) 1137 ictx->cell.cell.attr |= GRID_ATTR_CHARSET; 1138 else 1139 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1140 1141 utf8_set(&ictx->cell.cell.data, ictx->ch); 1142 screen_write_collect_add(sctx, &ictx->cell.cell); 1143 ictx->last = ictx->ch; 1144 1145 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1146 1147 return (0); 1148 } 1149 1150 /* Collect intermediate string. */ 1151 static int 1152 input_intermediate(struct input_ctx *ictx) 1153 { 1154 if (ictx->interm_len == (sizeof ictx->interm_buf) - 1) 1155 ictx->flags |= INPUT_DISCARD; 1156 else { 1157 ictx->interm_buf[ictx->interm_len++] = ictx->ch; 1158 ictx->interm_buf[ictx->interm_len] = '\0'; 1159 } 1160 1161 return (0); 1162 } 1163 1164 /* Collect parameter string. */ 1165 static int 1166 input_parameter(struct input_ctx *ictx) 1167 { 1168 if (ictx->param_len == (sizeof ictx->param_buf) - 1) 1169 ictx->flags |= INPUT_DISCARD; 1170 else { 1171 ictx->param_buf[ictx->param_len++] = ictx->ch; 1172 ictx->param_buf[ictx->param_len] = '\0'; 1173 } 1174 1175 return (0); 1176 } 1177 1178 /* Collect input string. */ 1179 static int 1180 input_input(struct input_ctx *ictx) 1181 { 1182 size_t available; 1183 1184 available = ictx->input_space; 1185 while (ictx->input_len + 1 >= available) { 1186 available *= 2; 1187 if (available > INPUT_BUF_LIMIT) { 1188 ictx->flags |= INPUT_DISCARD; 1189 return (0); 1190 } 1191 ictx->input_buf = xrealloc(ictx->input_buf, available); 1192 ictx->input_space = available; 1193 } 1194 ictx->input_buf[ictx->input_len++] = ictx->ch; 1195 ictx->input_buf[ictx->input_len] = '\0'; 1196 1197 return (0); 1198 } 1199 1200 /* Execute C0 control sequence. */ 1201 static int 1202 input_c0_dispatch(struct input_ctx *ictx) 1203 { 1204 struct screen_write_ctx *sctx = &ictx->ctx; 1205 struct window_pane *wp = ictx->wp; 1206 struct screen *s = sctx->s; 1207 1208 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1209 1210 log_debug("%s: '%c'", __func__, ictx->ch); 1211 1212 switch (ictx->ch) { 1213 case '\000': /* NUL */ 1214 break; 1215 case '\007': /* BEL */ 1216 if (wp != NULL) 1217 alerts_queue(wp->window, WINDOW_BELL); 1218 break; 1219 case '\010': /* BS */ 1220 screen_write_backspace(sctx); 1221 break; 1222 case '\011': /* HT */ 1223 /* Don't tab beyond the end of the line. */ 1224 if (s->cx >= screen_size_x(s) - 1) 1225 break; 1226 1227 /* Find the next tab point, or use the last column if none. */ 1228 do { 1229 s->cx++; 1230 if (bit_test(s->tabs, s->cx)) 1231 break; 1232 } while (s->cx < screen_size_x(s) - 1); 1233 break; 1234 case '\012': /* LF */ 1235 case '\013': /* VT */ 1236 case '\014': /* FF */ 1237 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1238 if (s->mode & MODE_CRLF) 1239 screen_write_carriagereturn(sctx); 1240 break; 1241 case '\015': /* CR */ 1242 screen_write_carriagereturn(sctx); 1243 break; 1244 case '\016': /* SO */ 1245 ictx->cell.set = 1; 1246 break; 1247 case '\017': /* SI */ 1248 ictx->cell.set = 0; 1249 break; 1250 default: 1251 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1252 break; 1253 } 1254 1255 ictx->last = -1; 1256 return (0); 1257 } 1258 1259 /* Execute escape sequence. */ 1260 static int 1261 input_esc_dispatch(struct input_ctx *ictx) 1262 { 1263 struct screen_write_ctx *sctx = &ictx->ctx; 1264 struct screen *s = sctx->s; 1265 struct input_table_entry *entry; 1266 1267 if (ictx->flags & INPUT_DISCARD) 1268 return (0); 1269 log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf); 1270 1271 entry = bsearch(ictx, input_esc_table, nitems(input_esc_table), 1272 sizeof input_esc_table[0], input_table_compare); 1273 if (entry == NULL) { 1274 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1275 return (0); 1276 } 1277 1278 switch (entry->type) { 1279 case INPUT_ESC_RIS: 1280 colour_palette_clear(ictx->palette); 1281 input_reset_cell(ictx); 1282 screen_write_reset(sctx); 1283 screen_write_fullredraw(sctx); 1284 break; 1285 case INPUT_ESC_IND: 1286 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1287 break; 1288 case INPUT_ESC_NEL: 1289 screen_write_carriagereturn(sctx); 1290 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1291 break; 1292 case INPUT_ESC_HTS: 1293 if (s->cx < screen_size_x(s)) 1294 bit_set(s->tabs, s->cx); 1295 break; 1296 case INPUT_ESC_RI: 1297 screen_write_reverseindex(sctx, ictx->cell.cell.bg); 1298 break; 1299 case INPUT_ESC_DECKPAM: 1300 screen_write_mode_set(sctx, MODE_KKEYPAD); 1301 break; 1302 case INPUT_ESC_DECKPNM: 1303 screen_write_mode_clear(sctx, MODE_KKEYPAD); 1304 break; 1305 case INPUT_ESC_DECSC: 1306 input_save_state(ictx); 1307 break; 1308 case INPUT_ESC_DECRC: 1309 input_restore_state(ictx); 1310 break; 1311 case INPUT_ESC_DECALN: 1312 screen_write_alignmenttest(sctx); 1313 break; 1314 case INPUT_ESC_SCSG0_ON: 1315 ictx->cell.g0set = 1; 1316 break; 1317 case INPUT_ESC_SCSG0_OFF: 1318 ictx->cell.g0set = 0; 1319 break; 1320 case INPUT_ESC_SCSG1_ON: 1321 ictx->cell.g1set = 1; 1322 break; 1323 case INPUT_ESC_SCSG1_OFF: 1324 ictx->cell.g1set = 0; 1325 break; 1326 case INPUT_ESC_ST: 1327 /* ST terminates OSC but the state transition already did it. */ 1328 break; 1329 } 1330 1331 ictx->last = -1; 1332 return (0); 1333 } 1334 1335 /* Execute control sequence. */ 1336 static int 1337 input_csi_dispatch(struct input_ctx *ictx) 1338 { 1339 struct screen_write_ctx *sctx = &ictx->ctx; 1340 struct screen *s = sctx->s; 1341 struct input_table_entry *entry; 1342 int i, n, m; 1343 u_int cx, bg = ictx->cell.cell.bg; 1344 1345 if (ictx->flags & INPUT_DISCARD) 1346 return (0); 1347 1348 log_debug("%s: '%c' \"%s\" \"%s\"", 1349 __func__, ictx->ch, ictx->interm_buf, ictx->param_buf); 1350 1351 if (input_split(ictx) != 0) 1352 return (0); 1353 1354 entry = bsearch(ictx, input_csi_table, nitems(input_csi_table), 1355 sizeof input_csi_table[0], input_table_compare); 1356 if (entry == NULL) { 1357 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1358 return (0); 1359 } 1360 1361 switch (entry->type) { 1362 case INPUT_CSI_CBT: 1363 /* Find the previous tab point, n times. */ 1364 cx = s->cx; 1365 if (cx > screen_size_x(s) - 1) 1366 cx = screen_size_x(s) - 1; 1367 n = input_get(ictx, 0, 1, 1); 1368 if (n == -1) 1369 break; 1370 while (cx > 0 && n-- > 0) { 1371 do 1372 cx--; 1373 while (cx > 0 && !bit_test(s->tabs, cx)); 1374 } 1375 s->cx = cx; 1376 break; 1377 case INPUT_CSI_CUB: 1378 n = input_get(ictx, 0, 1, 1); 1379 if (n != -1) 1380 screen_write_cursorleft(sctx, n); 1381 break; 1382 case INPUT_CSI_CUD: 1383 n = input_get(ictx, 0, 1, 1); 1384 if (n != -1) 1385 screen_write_cursordown(sctx, n); 1386 break; 1387 case INPUT_CSI_CUF: 1388 n = input_get(ictx, 0, 1, 1); 1389 if (n != -1) 1390 screen_write_cursorright(sctx, n); 1391 break; 1392 case INPUT_CSI_CUP: 1393 n = input_get(ictx, 0, 1, 1); 1394 m = input_get(ictx, 1, 1, 1); 1395 if (n != -1 && m != -1) 1396 screen_write_cursormove(sctx, m - 1, n - 1, 1); 1397 break; 1398 case INPUT_CSI_MODSET: 1399 n = input_get(ictx, 0, 0, 0); 1400 m = input_get(ictx, 1, 0, 0); 1401 if (options_get_number(global_options, "extended-keys") == 2) 1402 break; 1403 if (n == 0 || (n == 4 && m == 0)) 1404 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1405 else if (n == 4 && (m == 1 || m == 2)) 1406 screen_write_mode_set(sctx, MODE_KEXTENDED); 1407 break; 1408 case INPUT_CSI_MODOFF: 1409 n = input_get(ictx, 0, 0, 0); 1410 if (n == 4) 1411 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1412 break; 1413 case INPUT_CSI_WINOPS: 1414 input_csi_dispatch_winops(ictx); 1415 break; 1416 case INPUT_CSI_CUU: 1417 n = input_get(ictx, 0, 1, 1); 1418 if (n != -1) 1419 screen_write_cursorup(sctx, n); 1420 break; 1421 case INPUT_CSI_CNL: 1422 n = input_get(ictx, 0, 1, 1); 1423 if (n != -1) { 1424 screen_write_carriagereturn(sctx); 1425 screen_write_cursordown(sctx, n); 1426 } 1427 break; 1428 case INPUT_CSI_CPL: 1429 n = input_get(ictx, 0, 1, 1); 1430 if (n != -1) { 1431 screen_write_carriagereturn(sctx); 1432 screen_write_cursorup(sctx, n); 1433 } 1434 break; 1435 case INPUT_CSI_DA: 1436 switch (input_get(ictx, 0, 0, 0)) { 1437 case -1: 1438 break; 1439 case 0: 1440 input_reply(ictx, "\033[?1;2c"); 1441 break; 1442 default: 1443 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1444 break; 1445 } 1446 break; 1447 case INPUT_CSI_DA_TWO: 1448 switch (input_get(ictx, 0, 0, 0)) { 1449 case -1: 1450 break; 1451 case 0: 1452 input_reply(ictx, "\033[>84;0;0c"); 1453 break; 1454 default: 1455 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1456 break; 1457 } 1458 break; 1459 case INPUT_CSI_ECH: 1460 n = input_get(ictx, 0, 1, 1); 1461 if (n != -1) 1462 screen_write_clearcharacter(sctx, n, bg); 1463 break; 1464 case INPUT_CSI_DCH: 1465 n = input_get(ictx, 0, 1, 1); 1466 if (n != -1) 1467 screen_write_deletecharacter(sctx, n, bg); 1468 break; 1469 case INPUT_CSI_DECSTBM: 1470 n = input_get(ictx, 0, 1, 1); 1471 m = input_get(ictx, 1, 1, screen_size_y(s)); 1472 if (n != -1 && m != -1) 1473 screen_write_scrollregion(sctx, n - 1, m - 1); 1474 break; 1475 case INPUT_CSI_DL: 1476 n = input_get(ictx, 0, 1, 1); 1477 if (n != -1) 1478 screen_write_deleteline(sctx, n, bg); 1479 break; 1480 case INPUT_CSI_DSR: 1481 switch (input_get(ictx, 0, 0, 0)) { 1482 case -1: 1483 break; 1484 case 5: 1485 input_reply(ictx, "\033[0n"); 1486 break; 1487 case 6: 1488 input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1); 1489 break; 1490 default: 1491 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1492 break; 1493 } 1494 break; 1495 case INPUT_CSI_ED: 1496 switch (input_get(ictx, 0, 0, 0)) { 1497 case -1: 1498 break; 1499 case 0: 1500 screen_write_clearendofscreen(sctx, bg); 1501 break; 1502 case 1: 1503 screen_write_clearstartofscreen(sctx, bg); 1504 break; 1505 case 2: 1506 screen_write_clearscreen(sctx, bg); 1507 break; 1508 case 3: 1509 if (input_get(ictx, 1, 0, 0) == 0) { 1510 /* 1511 * Linux console extension to clear history 1512 * (for example before locking the screen). 1513 */ 1514 screen_write_clearhistory(sctx); 1515 } 1516 break; 1517 default: 1518 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1519 break; 1520 } 1521 break; 1522 case INPUT_CSI_EL: 1523 switch (input_get(ictx, 0, 0, 0)) { 1524 case -1: 1525 break; 1526 case 0: 1527 screen_write_clearendofline(sctx, bg); 1528 break; 1529 case 1: 1530 screen_write_clearstartofline(sctx, bg); 1531 break; 1532 case 2: 1533 screen_write_clearline(sctx, bg); 1534 break; 1535 default: 1536 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1537 break; 1538 } 1539 break; 1540 case INPUT_CSI_HPA: 1541 n = input_get(ictx, 0, 1, 1); 1542 if (n != -1) 1543 screen_write_cursormove(sctx, n - 1, -1, 1); 1544 break; 1545 case INPUT_CSI_ICH: 1546 n = input_get(ictx, 0, 1, 1); 1547 if (n != -1) 1548 screen_write_insertcharacter(sctx, n, bg); 1549 break; 1550 case INPUT_CSI_IL: 1551 n = input_get(ictx, 0, 1, 1); 1552 if (n != -1) 1553 screen_write_insertline(sctx, n, bg); 1554 break; 1555 case INPUT_CSI_REP: 1556 n = input_get(ictx, 0, 1, 1); 1557 if (n == -1) 1558 break; 1559 1560 m = screen_size_x(s) - s->cx; 1561 if (n > m) 1562 n = m; 1563 1564 if (ictx->last == -1) 1565 break; 1566 ictx->ch = ictx->last; 1567 1568 for (i = 0; i < n; i++) 1569 input_print(ictx); 1570 break; 1571 case INPUT_CSI_RCP: 1572 input_restore_state(ictx); 1573 break; 1574 case INPUT_CSI_RM: 1575 input_csi_dispatch_rm(ictx); 1576 break; 1577 case INPUT_CSI_RM_PRIVATE: 1578 input_csi_dispatch_rm_private(ictx); 1579 break; 1580 case INPUT_CSI_SCP: 1581 input_save_state(ictx); 1582 break; 1583 case INPUT_CSI_SGR: 1584 input_csi_dispatch_sgr(ictx); 1585 break; 1586 case INPUT_CSI_SM: 1587 input_csi_dispatch_sm(ictx); 1588 break; 1589 case INPUT_CSI_SM_PRIVATE: 1590 input_csi_dispatch_sm_private(ictx); 1591 break; 1592 case INPUT_CSI_SU: 1593 n = input_get(ictx, 0, 1, 1); 1594 if (n != -1) 1595 screen_write_scrollup(sctx, n, bg); 1596 break; 1597 case INPUT_CSI_SD: 1598 n = input_get(ictx, 0, 1, 1); 1599 if (n != -1) 1600 screen_write_scrolldown(sctx, n, bg); 1601 break; 1602 case INPUT_CSI_TBC: 1603 switch (input_get(ictx, 0, 0, 0)) { 1604 case -1: 1605 break; 1606 case 0: 1607 if (s->cx < screen_size_x(s)) 1608 bit_clear(s->tabs, s->cx); 1609 break; 1610 case 3: 1611 bit_nclear(s->tabs, 0, screen_size_x(s) - 1); 1612 break; 1613 default: 1614 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1615 break; 1616 } 1617 break; 1618 case INPUT_CSI_VPA: 1619 n = input_get(ictx, 0, 1, 1); 1620 if (n != -1) 1621 screen_write_cursormove(sctx, -1, n - 1, 1); 1622 break; 1623 case INPUT_CSI_DECSCUSR: 1624 n = input_get(ictx, 0, 0, 0); 1625 if (n != -1) 1626 screen_set_cursor_style(n, &s->cstyle, &s->mode); 1627 break; 1628 case INPUT_CSI_XDA: 1629 n = input_get(ictx, 0, 0, 0); 1630 if (n == 0) 1631 input_reply(ictx, "\033P>|tmux %s\033\\", getversion()); 1632 break; 1633 1634 } 1635 1636 ictx->last = -1; 1637 return (0); 1638 } 1639 1640 /* Handle CSI RM. */ 1641 static void 1642 input_csi_dispatch_rm(struct input_ctx *ictx) 1643 { 1644 struct screen_write_ctx *sctx = &ictx->ctx; 1645 u_int i; 1646 1647 for (i = 0; i < ictx->param_list_len; i++) { 1648 switch (input_get(ictx, i, 0, -1)) { 1649 case -1: 1650 break; 1651 case 4: /* IRM */ 1652 screen_write_mode_clear(sctx, MODE_INSERT); 1653 break; 1654 case 34: 1655 screen_write_mode_set(sctx, MODE_CURSOR_VERY_VISIBLE); 1656 break; 1657 default: 1658 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1659 break; 1660 } 1661 } 1662 } 1663 1664 /* Handle CSI private RM. */ 1665 static void 1666 input_csi_dispatch_rm_private(struct input_ctx *ictx) 1667 { 1668 struct screen_write_ctx *sctx = &ictx->ctx; 1669 struct grid_cell *gc = &ictx->cell.cell; 1670 u_int i; 1671 1672 for (i = 0; i < ictx->param_list_len; i++) { 1673 switch (input_get(ictx, i, 0, -1)) { 1674 case -1: 1675 break; 1676 case 1: /* DECCKM */ 1677 screen_write_mode_clear(sctx, MODE_KCURSOR); 1678 break; 1679 case 3: /* DECCOLM */ 1680 screen_write_cursormove(sctx, 0, 0, 1); 1681 screen_write_clearscreen(sctx, gc->bg); 1682 break; 1683 case 6: /* DECOM */ 1684 screen_write_mode_clear(sctx, MODE_ORIGIN); 1685 screen_write_cursormove(sctx, 0, 0, 1); 1686 break; 1687 case 7: /* DECAWM */ 1688 screen_write_mode_clear(sctx, MODE_WRAP); 1689 break; 1690 case 12: 1691 screen_write_mode_clear(sctx, MODE_CURSOR_BLINKING); 1692 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1693 break; 1694 case 25: /* TCEM */ 1695 screen_write_mode_clear(sctx, MODE_CURSOR); 1696 break; 1697 case 1000: 1698 case 1001: 1699 case 1002: 1700 case 1003: 1701 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1702 break; 1703 case 1004: 1704 screen_write_mode_clear(sctx, MODE_FOCUSON); 1705 break; 1706 case 1005: 1707 screen_write_mode_clear(sctx, MODE_MOUSE_UTF8); 1708 break; 1709 case 1006: 1710 screen_write_mode_clear(sctx, MODE_MOUSE_SGR); 1711 break; 1712 case 47: 1713 case 1047: 1714 screen_write_alternateoff(sctx, gc, 0); 1715 break; 1716 case 1049: 1717 screen_write_alternateoff(sctx, gc, 1); 1718 break; 1719 case 2004: 1720 screen_write_mode_clear(sctx, MODE_BRACKETPASTE); 1721 break; 1722 default: 1723 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1724 break; 1725 } 1726 } 1727 } 1728 1729 /* Handle CSI SM. */ 1730 static void 1731 input_csi_dispatch_sm(struct input_ctx *ictx) 1732 { 1733 struct screen_write_ctx *sctx = &ictx->ctx; 1734 u_int i; 1735 1736 for (i = 0; i < ictx->param_list_len; i++) { 1737 switch (input_get(ictx, i, 0, -1)) { 1738 case -1: 1739 break; 1740 case 4: /* IRM */ 1741 screen_write_mode_set(sctx, MODE_INSERT); 1742 break; 1743 case 34: 1744 screen_write_mode_clear(sctx, MODE_CURSOR_VERY_VISIBLE); 1745 break; 1746 default: 1747 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1748 break; 1749 } 1750 } 1751 } 1752 1753 /* Handle CSI private SM. */ 1754 static void 1755 input_csi_dispatch_sm_private(struct input_ctx *ictx) 1756 { 1757 struct screen_write_ctx *sctx = &ictx->ctx; 1758 struct window_pane *wp = ictx->wp; 1759 struct grid_cell *gc = &ictx->cell.cell; 1760 u_int i; 1761 1762 for (i = 0; i < ictx->param_list_len; i++) { 1763 switch (input_get(ictx, i, 0, -1)) { 1764 case -1: 1765 break; 1766 case 1: /* DECCKM */ 1767 screen_write_mode_set(sctx, MODE_KCURSOR); 1768 break; 1769 case 3: /* DECCOLM */ 1770 screen_write_cursormove(sctx, 0, 0, 1); 1771 screen_write_clearscreen(sctx, ictx->cell.cell.bg); 1772 break; 1773 case 6: /* DECOM */ 1774 screen_write_mode_set(sctx, MODE_ORIGIN); 1775 screen_write_cursormove(sctx, 0, 0, 1); 1776 break; 1777 case 7: /* DECAWM */ 1778 screen_write_mode_set(sctx, MODE_WRAP); 1779 break; 1780 case 12: 1781 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING); 1782 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1783 break; 1784 case 25: /* TCEM */ 1785 screen_write_mode_set(sctx, MODE_CURSOR); 1786 break; 1787 case 1000: 1788 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1789 screen_write_mode_set(sctx, MODE_MOUSE_STANDARD); 1790 break; 1791 case 1002: 1792 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1793 screen_write_mode_set(sctx, MODE_MOUSE_BUTTON); 1794 break; 1795 case 1003: 1796 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1797 screen_write_mode_set(sctx, MODE_MOUSE_ALL); 1798 break; 1799 case 1004: 1800 screen_write_mode_set(sctx, MODE_FOCUSON); 1801 break; 1802 case 1005: 1803 screen_write_mode_set(sctx, MODE_MOUSE_UTF8); 1804 break; 1805 case 1006: 1806 screen_write_mode_set(sctx, MODE_MOUSE_SGR); 1807 break; 1808 case 47: 1809 case 1047: 1810 screen_write_alternateon(sctx, gc, 0); 1811 break; 1812 case 1049: 1813 screen_write_alternateon(sctx, gc, 1); 1814 break; 1815 case 2004: 1816 screen_write_mode_set(sctx, MODE_BRACKETPASTE); 1817 break; 1818 default: 1819 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1820 break; 1821 } 1822 } 1823 } 1824 1825 /* Handle CSI window operations. */ 1826 static void 1827 input_csi_dispatch_winops(struct input_ctx *ictx) 1828 { 1829 struct screen_write_ctx *sctx = &ictx->ctx; 1830 struct screen *s = sctx->s; 1831 struct window_pane *wp = ictx->wp; 1832 u_int x = screen_size_x(s), y = screen_size_y(s); 1833 int n, m; 1834 1835 m = 0; 1836 while ((n = input_get(ictx, m, 0, -1)) != -1) { 1837 switch (n) { 1838 case 1: 1839 case 2: 1840 case 5: 1841 case 6: 1842 case 7: 1843 case 11: 1844 case 13: 1845 case 14: 1846 case 19: 1847 case 20: 1848 case 21: 1849 case 24: 1850 break; 1851 case 3: 1852 case 4: 1853 case 8: 1854 m++; 1855 if (input_get(ictx, m, 0, -1) == -1) 1856 return; 1857 /* FALLTHROUGH */ 1858 case 9: 1859 case 10: 1860 m++; 1861 if (input_get(ictx, m, 0, -1) == -1) 1862 return; 1863 break; 1864 case 22: 1865 m++; 1866 switch (input_get(ictx, m, 0, -1)) { 1867 case -1: 1868 return; 1869 case 0: 1870 case 2: 1871 screen_push_title(sctx->s); 1872 break; 1873 } 1874 break; 1875 case 23: 1876 m++; 1877 switch (input_get(ictx, m, 0, -1)) { 1878 case -1: 1879 return; 1880 case 0: 1881 case 2: 1882 screen_pop_title(sctx->s); 1883 if (wp == NULL) 1884 break; 1885 notify_pane("pane-title-changed", wp); 1886 server_redraw_window_borders(wp->window); 1887 server_status_window(wp->window); 1888 break; 1889 } 1890 break; 1891 case 18: 1892 input_reply(ictx, "\033[8;%u;%ut", y, x); 1893 break; 1894 default: 1895 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1896 break; 1897 } 1898 m++; 1899 } 1900 } 1901 1902 /* Helper for 256 colour SGR. */ 1903 static int 1904 input_csi_dispatch_sgr_256_do(struct input_ctx *ictx, int fgbg, int c) 1905 { 1906 struct grid_cell *gc = &ictx->cell.cell; 1907 1908 if (c == -1 || c > 255) { 1909 if (fgbg == 38) 1910 gc->fg = 8; 1911 else if (fgbg == 48) 1912 gc->bg = 8; 1913 } else { 1914 if (fgbg == 38) 1915 gc->fg = c | COLOUR_FLAG_256; 1916 else if (fgbg == 48) 1917 gc->bg = c | COLOUR_FLAG_256; 1918 else if (fgbg == 58) 1919 gc->us = c | COLOUR_FLAG_256; 1920 } 1921 return (1); 1922 } 1923 1924 /* Handle CSI SGR for 256 colours. */ 1925 static void 1926 input_csi_dispatch_sgr_256(struct input_ctx *ictx, int fgbg, u_int *i) 1927 { 1928 int c; 1929 1930 c = input_get(ictx, (*i) + 1, 0, -1); 1931 if (input_csi_dispatch_sgr_256_do(ictx, fgbg, c)) 1932 (*i)++; 1933 } 1934 1935 /* Helper for RGB colour SGR. */ 1936 static int 1937 input_csi_dispatch_sgr_rgb_do(struct input_ctx *ictx, int fgbg, int r, int g, 1938 int b) 1939 { 1940 struct grid_cell *gc = &ictx->cell.cell; 1941 1942 if (r == -1 || r > 255) 1943 return (0); 1944 if (g == -1 || g > 255) 1945 return (0); 1946 if (b == -1 || b > 255) 1947 return (0); 1948 1949 if (fgbg == 38) 1950 gc->fg = colour_join_rgb(r, g, b); 1951 else if (fgbg == 48) 1952 gc->bg = colour_join_rgb(r, g, b); 1953 else if (fgbg == 58) 1954 gc->us = colour_join_rgb(r, g, b); 1955 return (1); 1956 } 1957 1958 /* Handle CSI SGR for RGB colours. */ 1959 static void 1960 input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i) 1961 { 1962 int r, g, b; 1963 1964 r = input_get(ictx, (*i) + 1, 0, -1); 1965 g = input_get(ictx, (*i) + 2, 0, -1); 1966 b = input_get(ictx, (*i) + 3, 0, -1); 1967 if (input_csi_dispatch_sgr_rgb_do(ictx, fgbg, r, g, b)) 1968 (*i) += 3; 1969 } 1970 1971 /* Handle CSI SGR with a ISO parameter. */ 1972 static void 1973 input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i) 1974 { 1975 struct grid_cell *gc = &ictx->cell.cell; 1976 char *s = ictx->param_list[i].str, *copy, *ptr, *out; 1977 int p[8]; 1978 u_int n; 1979 const char *errstr; 1980 1981 for (n = 0; n < nitems(p); n++) 1982 p[n] = -1; 1983 n = 0; 1984 1985 ptr = copy = xstrdup(s); 1986 while ((out = strsep(&ptr, ":")) != NULL) { 1987 if (*out != '\0') { 1988 p[n++] = strtonum(out, 0, INT_MAX, &errstr); 1989 if (errstr != NULL || n == nitems(p)) { 1990 free(copy); 1991 return; 1992 } 1993 } else { 1994 n++; 1995 if (n == nitems(p)) { 1996 free(copy); 1997 return; 1998 } 1999 } 2000 log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]); 2001 } 2002 free(copy); 2003 2004 if (n == 0) 2005 return; 2006 if (p[0] == 4) { 2007 if (n != 2) 2008 return; 2009 switch (p[1]) { 2010 case 0: 2011 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2012 break; 2013 case 1: 2014 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2015 gc->attr |= GRID_ATTR_UNDERSCORE; 2016 break; 2017 case 2: 2018 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2019 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2020 break; 2021 case 3: 2022 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2023 gc->attr |= GRID_ATTR_UNDERSCORE_3; 2024 break; 2025 case 4: 2026 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2027 gc->attr |= GRID_ATTR_UNDERSCORE_4; 2028 break; 2029 case 5: 2030 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2031 gc->attr |= GRID_ATTR_UNDERSCORE_5; 2032 break; 2033 } 2034 return; 2035 } 2036 if (n < 2 || (p[0] != 38 && p[0] != 48 && p[0] != 58)) 2037 return; 2038 switch (p[1]) { 2039 case 2: 2040 if (n < 3) 2041 break; 2042 if (n == 5) 2043 i = 2; 2044 else 2045 i = 3; 2046 if (n < i + 3) 2047 break; 2048 input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i], p[i + 1], 2049 p[i + 2]); 2050 break; 2051 case 5: 2052 if (n < 3) 2053 break; 2054 input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]); 2055 break; 2056 } 2057 } 2058 2059 /* Handle CSI SGR. */ 2060 static void 2061 input_csi_dispatch_sgr(struct input_ctx *ictx) 2062 { 2063 struct grid_cell *gc = &ictx->cell.cell; 2064 u_int i; 2065 int n; 2066 2067 if (ictx->param_list_len == 0) { 2068 memcpy(gc, &grid_default_cell, sizeof *gc); 2069 return; 2070 } 2071 2072 for (i = 0; i < ictx->param_list_len; i++) { 2073 if (ictx->param_list[i].type == INPUT_STRING) { 2074 input_csi_dispatch_sgr_colon(ictx, i); 2075 continue; 2076 } 2077 n = input_get(ictx, i, 0, 0); 2078 if (n == -1) 2079 continue; 2080 2081 if (n == 38 || n == 48 || n == 58) { 2082 i++; 2083 switch (input_get(ictx, i, 0, -1)) { 2084 case 2: 2085 input_csi_dispatch_sgr_rgb(ictx, n, &i); 2086 break; 2087 case 5: 2088 input_csi_dispatch_sgr_256(ictx, n, &i); 2089 break; 2090 } 2091 continue; 2092 } 2093 2094 switch (n) { 2095 case 0: 2096 memcpy(gc, &grid_default_cell, sizeof *gc); 2097 break; 2098 case 1: 2099 gc->attr |= GRID_ATTR_BRIGHT; 2100 break; 2101 case 2: 2102 gc->attr |= GRID_ATTR_DIM; 2103 break; 2104 case 3: 2105 gc->attr |= GRID_ATTR_ITALICS; 2106 break; 2107 case 4: 2108 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2109 gc->attr |= GRID_ATTR_UNDERSCORE; 2110 break; 2111 case 5: 2112 case 6: 2113 gc->attr |= GRID_ATTR_BLINK; 2114 break; 2115 case 7: 2116 gc->attr |= GRID_ATTR_REVERSE; 2117 break; 2118 case 8: 2119 gc->attr |= GRID_ATTR_HIDDEN; 2120 break; 2121 case 9: 2122 gc->attr |= GRID_ATTR_STRIKETHROUGH; 2123 break; 2124 case 21: 2125 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2126 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2127 break; 2128 case 22: 2129 gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM); 2130 break; 2131 case 23: 2132 gc->attr &= ~GRID_ATTR_ITALICS; 2133 break; 2134 case 24: 2135 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2136 break; 2137 case 25: 2138 gc->attr &= ~GRID_ATTR_BLINK; 2139 break; 2140 case 27: 2141 gc->attr &= ~GRID_ATTR_REVERSE; 2142 break; 2143 case 28: 2144 gc->attr &= ~GRID_ATTR_HIDDEN; 2145 break; 2146 case 29: 2147 gc->attr &= ~GRID_ATTR_STRIKETHROUGH; 2148 break; 2149 case 30: 2150 case 31: 2151 case 32: 2152 case 33: 2153 case 34: 2154 case 35: 2155 case 36: 2156 case 37: 2157 gc->fg = n - 30; 2158 break; 2159 case 39: 2160 gc->fg = 8; 2161 break; 2162 case 40: 2163 case 41: 2164 case 42: 2165 case 43: 2166 case 44: 2167 case 45: 2168 case 46: 2169 case 47: 2170 gc->bg = n - 40; 2171 break; 2172 case 49: 2173 gc->bg = 8; 2174 break; 2175 case 53: 2176 gc->attr |= GRID_ATTR_OVERLINE; 2177 break; 2178 case 55: 2179 gc->attr &= ~GRID_ATTR_OVERLINE; 2180 break; 2181 case 59: 2182 gc->us = 0; 2183 break; 2184 case 90: 2185 case 91: 2186 case 92: 2187 case 93: 2188 case 94: 2189 case 95: 2190 case 96: 2191 case 97: 2192 gc->fg = n; 2193 break; 2194 case 100: 2195 case 101: 2196 case 102: 2197 case 103: 2198 case 104: 2199 case 105: 2200 case 106: 2201 case 107: 2202 gc->bg = n - 10; 2203 break; 2204 } 2205 } 2206 } 2207 2208 /* End of input with BEL. */ 2209 static int 2210 input_end_bel(struct input_ctx *ictx) 2211 { 2212 log_debug("%s", __func__); 2213 2214 ictx->input_end = INPUT_END_BEL; 2215 2216 return (0); 2217 } 2218 2219 /* DCS string started. */ 2220 static void 2221 input_enter_dcs(struct input_ctx *ictx) 2222 { 2223 log_debug("%s", __func__); 2224 2225 input_clear(ictx); 2226 input_start_timer(ictx); 2227 ictx->last = -1; 2228 } 2229 2230 /* DCS terminator (ST) received. */ 2231 static int 2232 input_dcs_dispatch(struct input_ctx *ictx) 2233 { 2234 struct window_pane *wp = ictx->wp; 2235 struct screen_write_ctx *sctx = &ictx->ctx; 2236 u_char *buf = ictx->input_buf; 2237 size_t len = ictx->input_len; 2238 const char prefix[] = "tmux;"; 2239 const u_int prefixlen = (sizeof prefix) - 1; 2240 long long allow_passthrough = 0; 2241 2242 if (wp == NULL) 2243 return (0); 2244 if (ictx->flags & INPUT_DISCARD) 2245 return (0); 2246 allow_passthrough = options_get_number(wp->options, 2247 "allow-passthrough"); 2248 if (!allow_passthrough) 2249 return (0); 2250 log_debug("%s: \"%s\"", __func__, buf); 2251 2252 if (len >= prefixlen && strncmp(buf, prefix, prefixlen) == 0) { 2253 screen_write_rawstring(sctx, buf + prefixlen, len - prefixlen, 2254 allow_passthrough == 2); 2255 } 2256 2257 return (0); 2258 } 2259 2260 /* OSC string started. */ 2261 static void 2262 input_enter_osc(struct input_ctx *ictx) 2263 { 2264 log_debug("%s", __func__); 2265 2266 input_clear(ictx); 2267 input_start_timer(ictx); 2268 ictx->last = -1; 2269 } 2270 2271 /* OSC terminator (ST) received. */ 2272 static void 2273 input_exit_osc(struct input_ctx *ictx) 2274 { 2275 struct screen_write_ctx *sctx = &ictx->ctx; 2276 struct window_pane *wp = ictx->wp; 2277 u_char *p = ictx->input_buf; 2278 u_int option; 2279 2280 if (ictx->flags & INPUT_DISCARD) 2281 return; 2282 if (ictx->input_len < 1 || *p < '0' || *p > '9') 2283 return; 2284 2285 log_debug("%s: \"%s\" (end %s)", __func__, p, 2286 ictx->input_end == INPUT_END_ST ? "ST" : "BEL"); 2287 2288 option = 0; 2289 while (*p >= '0' && *p <= '9') 2290 option = option * 10 + *p++ - '0'; 2291 if (*p != ';' && *p != '\0') 2292 return; 2293 if (*p == ';') 2294 p++; 2295 2296 switch (option) { 2297 case 0: 2298 case 2: 2299 if (screen_set_title(sctx->s, p) && wp != NULL) { 2300 notify_pane("pane-title-changed", wp); 2301 server_redraw_window_borders(wp->window); 2302 server_status_window(wp->window); 2303 } 2304 break; 2305 case 4: 2306 input_osc_4(ictx, p); 2307 break; 2308 case 7: 2309 if (utf8_isvalid(p)) { 2310 screen_set_path(sctx->s, p); 2311 if (wp != NULL) { 2312 server_redraw_window_borders(wp->window); 2313 server_status_window(wp->window); 2314 } 2315 } 2316 break; 2317 case 8: 2318 input_osc_8(ictx, p); 2319 break; 2320 case 10: 2321 input_osc_10(ictx, p); 2322 break; 2323 case 11: 2324 input_osc_11(ictx, p); 2325 break; 2326 case 12: 2327 input_osc_12(ictx, p); 2328 break; 2329 case 52: 2330 input_osc_52(ictx, p); 2331 break; 2332 case 104: 2333 input_osc_104(ictx, p); 2334 break; 2335 case 110: 2336 input_osc_110(ictx, p); 2337 break; 2338 case 111: 2339 input_osc_111(ictx, p); 2340 break; 2341 case 112: 2342 input_osc_112(ictx, p); 2343 break; 2344 default: 2345 log_debug("%s: unknown '%u'", __func__, option); 2346 break; 2347 } 2348 } 2349 2350 /* APC string started. */ 2351 static void 2352 input_enter_apc(struct input_ctx *ictx) 2353 { 2354 log_debug("%s", __func__); 2355 2356 input_clear(ictx); 2357 input_start_timer(ictx); 2358 ictx->last = -1; 2359 } 2360 2361 /* APC terminator (ST) received. */ 2362 static void 2363 input_exit_apc(struct input_ctx *ictx) 2364 { 2365 struct screen_write_ctx *sctx = &ictx->ctx; 2366 struct window_pane *wp = ictx->wp; 2367 2368 if (ictx->flags & INPUT_DISCARD) 2369 return; 2370 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2371 2372 if (screen_set_title(sctx->s, ictx->input_buf) && wp != NULL) { 2373 notify_pane("pane-title-changed", wp); 2374 server_redraw_window_borders(wp->window); 2375 server_status_window(wp->window); 2376 } 2377 } 2378 2379 /* Rename string started. */ 2380 static void 2381 input_enter_rename(struct input_ctx *ictx) 2382 { 2383 log_debug("%s", __func__); 2384 2385 input_clear(ictx); 2386 input_start_timer(ictx); 2387 ictx->last = -1; 2388 } 2389 2390 /* Rename terminator (ST) received. */ 2391 static void 2392 input_exit_rename(struct input_ctx *ictx) 2393 { 2394 struct window_pane *wp = ictx->wp; 2395 struct window *w; 2396 struct options_entry *o; 2397 2398 if (wp == NULL) 2399 return; 2400 if (ictx->flags & INPUT_DISCARD) 2401 return; 2402 if (!options_get_number(ictx->wp->options, "allow-rename")) 2403 return; 2404 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2405 2406 if (!utf8_isvalid(ictx->input_buf)) 2407 return; 2408 w = wp->window; 2409 2410 if (ictx->input_len == 0) { 2411 o = options_get_only(w->options, "automatic-rename"); 2412 if (o != NULL) 2413 options_remove_or_default(o, -1, NULL); 2414 if (!options_get_number(w->options, "automatic-rename")) 2415 window_set_name(w, ""); 2416 } else { 2417 options_set_number(w->options, "automatic-rename", 0); 2418 window_set_name(w, ictx->input_buf); 2419 } 2420 server_redraw_window_borders(w); 2421 server_status_window(w); 2422 } 2423 2424 /* Open UTF-8 character. */ 2425 static int 2426 input_top_bit_set(struct input_ctx *ictx) 2427 { 2428 struct screen_write_ctx *sctx = &ictx->ctx; 2429 struct utf8_data *ud = &ictx->utf8data; 2430 2431 ictx->last = -1; 2432 2433 if (!ictx->utf8started) { 2434 if (utf8_open(ud, ictx->ch) != UTF8_MORE) 2435 return (0); 2436 ictx->utf8started = 1; 2437 return (0); 2438 } 2439 2440 switch (utf8_append(ud, ictx->ch)) { 2441 case UTF8_MORE: 2442 return (0); 2443 case UTF8_ERROR: 2444 ictx->utf8started = 0; 2445 return (0); 2446 case UTF8_DONE: 2447 break; 2448 } 2449 ictx->utf8started = 0; 2450 2451 log_debug("%s %hhu '%*s' (width %hhu)", __func__, ud->size, 2452 (int)ud->size, ud->data, ud->width); 2453 2454 utf8_copy(&ictx->cell.cell.data, ud); 2455 screen_write_collect_add(sctx, &ictx->cell.cell); 2456 2457 return (0); 2458 } 2459 2460 /* Parse colour from OSC. */ 2461 static int 2462 input_osc_parse_colour(const char *p) 2463 { 2464 double c, m, y, k = 0; 2465 u_int r, g, b; 2466 size_t len = strlen(p); 2467 int colour = -1; 2468 char *copy; 2469 2470 if ((len == 12 && sscanf(p, "rgb:%02x/%02x/%02x", &r, &g, &b) == 3) || 2471 (len == 7 && sscanf(p, "#%02x%02x%02x", &r, &g, &b) == 3) || 2472 sscanf(p, "%d,%d,%d", &r, &g, &b) == 3) 2473 colour = colour_join_rgb(r, g, b); 2474 else if ((len == 18 && 2475 sscanf(p, "rgb:%04x/%04x/%04x", &r, &g, &b) == 3) || 2476 (len == 13 && sscanf(p, "#%04x%04x%04x", &r, &g, &b) == 3)) 2477 colour = colour_join_rgb(r >> 8, g >> 8, b >> 8); 2478 else if ((sscanf(p, "cmyk:%lf/%lf/%lf/%lf", &c, &m, &y, &k) == 4 || 2479 sscanf(p, "cmy:%lf/%lf/%lf", &c, &m, &y) == 3) && 2480 c >= 0 && c <= 1 && m >= 0 && m <= 1 && 2481 y >= 0 && y <= 1 && k >= 0 && k <= 1) { 2482 colour = colour_join_rgb( 2483 (1 - c) * (1 - k) * 255, 2484 (1 - m) * (1 - k) * 255, 2485 (1 - y) * (1 - k) * 255); 2486 } else { 2487 while (len != 0 && *p == ' ') { 2488 p++; 2489 len--; 2490 } 2491 while (len != 0 && p[len - 1] == ' ') 2492 len--; 2493 copy = xstrndup(p, len); 2494 colour = colour_byname(copy); 2495 free(copy); 2496 } 2497 log_debug("%s: %s = %s", __func__, p, colour_tostring(colour)); 2498 return (colour); 2499 } 2500 2501 /* Reply to a colour request. */ 2502 static void 2503 input_osc_colour_reply(struct input_ctx *ictx, u_int n, int c) 2504 { 2505 u_char r, g, b; 2506 const char *end; 2507 2508 if (c != -1) 2509 c = colour_force_rgb(c); 2510 if (c == -1) 2511 return; 2512 colour_split_rgb(c, &r, &g, &b); 2513 2514 if (ictx->input_end == INPUT_END_BEL) 2515 end = "\007"; 2516 else 2517 end = "\033\\"; 2518 input_reply(ictx, "\033]%u;rgb:%02hhx%02hhx/%02hhx%02hhx/%02hhx%02hhx%s", 2519 n, r, r, g, g, b, b, end); 2520 } 2521 2522 /* Handle the OSC 4 sequence for setting (multiple) palette entries. */ 2523 static void 2524 input_osc_4(struct input_ctx *ictx, const char *p) 2525 { 2526 char *copy, *s, *next = NULL; 2527 long idx; 2528 int c, bad = 0, redraw = 0; 2529 2530 copy = s = xstrdup(p); 2531 while (s != NULL && *s != '\0') { 2532 idx = strtol(s, &next, 10); 2533 if (*next++ != ';') { 2534 bad = 1; 2535 break; 2536 } 2537 if (idx < 0 || idx >= 256) { 2538 bad = 1; 2539 break; 2540 } 2541 2542 s = strsep(&next, ";"); 2543 if (strcmp(s, "?") == 0) { 2544 c = colour_palette_get(ictx->palette, idx); 2545 if (c != -1) 2546 input_osc_colour_reply(ictx, 4, c); 2547 continue; 2548 } 2549 if ((c = input_osc_parse_colour(s)) == -1) { 2550 s = next; 2551 continue; 2552 } 2553 if (colour_palette_set(ictx->palette, idx, c)) 2554 redraw = 1; 2555 s = next; 2556 } 2557 if (bad) 2558 log_debug("bad OSC 4: %s", p); 2559 if (redraw) 2560 screen_write_fullredraw(&ictx->ctx); 2561 free(copy); 2562 } 2563 2564 /* Handle the OSC 8 sequence for embedding hyperlinks. */ 2565 static void 2566 input_osc_8(struct input_ctx *ictx, const char *p) 2567 { 2568 struct hyperlinks *hl = ictx->ctx.s->hyperlinks; 2569 struct grid_cell *gc = &ictx->cell.cell; 2570 const char *start, *end, *uri; 2571 char *id = NULL; 2572 2573 for (start = p; (end = strpbrk(start, ":;")) != NULL; start = end + 1) { 2574 if (end - start >= 4 && strncmp(start, "id=", 3) == 0) { 2575 if (id != NULL) 2576 goto bad; 2577 id = xstrndup(start + 3, end - start - 3); 2578 } 2579 2580 /* The first ; is the end of parameters and start of the URI. */ 2581 if (*end == ';') 2582 break; 2583 } 2584 if (end == NULL || *end != ';') 2585 goto bad; 2586 uri = end + 1; 2587 if (*uri == '\0') { 2588 gc->link = 0; 2589 free(id); 2590 return; 2591 } 2592 gc->link = hyperlinks_put(hl, uri, id); 2593 if (id == NULL) 2594 log_debug("hyperlink (anonymous) %s = %u", uri, gc->link); 2595 else 2596 log_debug("hyperlink (id=%s) %s = %u", id, uri, gc->link); 2597 free(id); 2598 return; 2599 2600 bad: 2601 log_debug("bad OSC 8 %s", p); 2602 free(id); 2603 } 2604 2605 /* Handle the OSC 10 sequence for setting and querying foreground colour. */ 2606 static void 2607 input_osc_10(struct input_ctx *ictx, const char *p) 2608 { 2609 struct window_pane *wp = ictx->wp; 2610 struct grid_cell defaults; 2611 int c; 2612 2613 if (strcmp(p, "?") == 0) { 2614 if (wp != NULL) { 2615 tty_default_colours(&defaults, wp); 2616 input_osc_colour_reply(ictx, 10, defaults.fg); 2617 } 2618 return; 2619 } 2620 2621 if ((c = input_osc_parse_colour(p)) == -1) { 2622 log_debug("bad OSC 10: %s", p); 2623 return; 2624 } 2625 if (ictx->palette != NULL) { 2626 ictx->palette->fg = c; 2627 if (wp != NULL) 2628 wp->flags |= PANE_STYLECHANGED; 2629 screen_write_fullredraw(&ictx->ctx); 2630 } 2631 } 2632 2633 /* Handle the OSC 110 sequence for resetting foreground colour. */ 2634 static void 2635 input_osc_110(struct input_ctx *ictx, const char *p) 2636 { 2637 struct window_pane *wp = ictx->wp; 2638 2639 if (*p != '\0') 2640 return; 2641 if (ictx->palette != NULL) { 2642 ictx->palette->fg = 8; 2643 if (wp != NULL) 2644 wp->flags |= PANE_STYLECHANGED; 2645 screen_write_fullredraw(&ictx->ctx); 2646 } 2647 } 2648 2649 /* Handle the OSC 11 sequence for setting and querying background colour. */ 2650 static void 2651 input_osc_11(struct input_ctx *ictx, const char *p) 2652 { 2653 struct window_pane *wp = ictx->wp; 2654 struct grid_cell defaults; 2655 int c; 2656 2657 if (strcmp(p, "?") == 0) { 2658 if (wp != NULL) { 2659 tty_default_colours(&defaults, wp); 2660 input_osc_colour_reply(ictx, 11, defaults.bg); 2661 } 2662 return; 2663 } 2664 2665 if ((c = input_osc_parse_colour(p)) == -1) { 2666 log_debug("bad OSC 11: %s", p); 2667 return; 2668 } 2669 if (ictx->palette != NULL) { 2670 ictx->palette->bg = c; 2671 if (wp != NULL) 2672 wp->flags |= PANE_STYLECHANGED; 2673 screen_write_fullredraw(&ictx->ctx); 2674 } 2675 } 2676 2677 /* Handle the OSC 111 sequence for resetting background colour. */ 2678 static void 2679 input_osc_111(struct input_ctx *ictx, const char *p) 2680 { 2681 struct window_pane *wp = ictx->wp; 2682 2683 if (*p != '\0') 2684 return; 2685 if (ictx->palette != NULL) { 2686 ictx->palette->bg = 8; 2687 if (wp != NULL) 2688 wp->flags |= PANE_STYLECHANGED; 2689 screen_write_fullredraw(&ictx->ctx); 2690 } 2691 } 2692 2693 /* Handle the OSC 12 sequence for setting and querying cursor colour. */ 2694 static void 2695 input_osc_12(struct input_ctx *ictx, const char *p) 2696 { 2697 struct window_pane *wp = ictx->wp; 2698 int c; 2699 2700 if (strcmp(p, "?") == 0) { 2701 if (wp != NULL) { 2702 c = ictx->ctx.s->ccolour; 2703 if (c == -1) 2704 c = ictx->ctx.s->default_ccolour; 2705 input_osc_colour_reply(ictx, 12, c); 2706 } 2707 return; 2708 } 2709 2710 if ((c = input_osc_parse_colour(p)) == -1) { 2711 log_debug("bad OSC 12: %s", p); 2712 return; 2713 } 2714 screen_set_cursor_colour(ictx->ctx.s, c); 2715 } 2716 2717 /* Handle the OSC 112 sequence for resetting cursor colour. */ 2718 static void 2719 input_osc_112(struct input_ctx *ictx, const char *p) 2720 { 2721 if (*p == '\0') /* no arguments allowed */ 2722 screen_set_cursor_colour(ictx->ctx.s, -1); 2723 } 2724 2725 2726 /* Handle the OSC 52 sequence for setting the clipboard. */ 2727 static void 2728 input_osc_52(struct input_ctx *ictx, const char *p) 2729 { 2730 struct window_pane *wp = ictx->wp; 2731 char *end; 2732 const char *buf = NULL; 2733 size_t len = 0; 2734 u_char *out; 2735 int outlen, state; 2736 struct screen_write_ctx ctx; 2737 struct paste_buffer *pb; 2738 const char* allow = "cpqs01234567"; 2739 char flags[sizeof "cpqs01234567"] = ""; 2740 u_int i, j = 0; 2741 2742 if (wp == NULL) 2743 return; 2744 state = options_get_number(global_options, "set-clipboard"); 2745 if (state != 2) 2746 return; 2747 2748 if ((end = strchr(p, ';')) == NULL) 2749 return; 2750 end++; 2751 if (*end == '\0') 2752 return; 2753 log_debug("%s: %s", __func__, end); 2754 2755 for (i = 0; p + i != end; i++) { 2756 if (strchr(allow, p[i]) != NULL && strchr(flags, p[i]) == NULL) 2757 flags[j++] = p[i]; 2758 } 2759 log_debug("%s: %.*s %s", __func__, (int)(end - p - 1), p, flags); 2760 2761 if (strcmp(end, "?") == 0) { 2762 if ((pb = paste_get_top(NULL)) != NULL) 2763 buf = paste_buffer_data(pb, &len); 2764 if (ictx->input_end == INPUT_END_BEL) 2765 input_reply_clipboard(ictx->event, buf, len, "\007"); 2766 else 2767 input_reply_clipboard(ictx->event, buf, len, "\033\\"); 2768 return; 2769 } 2770 2771 len = (strlen(end) / 4) * 3; 2772 if (len == 0) 2773 return; 2774 2775 out = xmalloc(len); 2776 if ((outlen = b64_pton(end, out, len)) == -1) { 2777 free(out); 2778 return; 2779 } 2780 2781 screen_write_start_pane(&ctx, wp, NULL); 2782 screen_write_setselection(&ctx, flags, out, outlen); 2783 screen_write_stop(&ctx); 2784 notify_pane("pane-set-clipboard", wp); 2785 2786 paste_add(NULL, out, outlen); 2787 } 2788 2789 /* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */ 2790 static void 2791 input_osc_104(struct input_ctx *ictx, const char *p) 2792 { 2793 char *copy, *s; 2794 long idx; 2795 int bad = 0, redraw = 0; 2796 2797 if (*p == '\0') { 2798 colour_palette_clear(ictx->palette); 2799 screen_write_fullredraw(&ictx->ctx); 2800 return; 2801 } 2802 2803 copy = s = xstrdup(p); 2804 while (*s != '\0') { 2805 idx = strtol(s, &s, 10); 2806 if (*s != '\0' && *s != ';') { 2807 bad = 1; 2808 break; 2809 } 2810 if (idx < 0 || idx >= 256) { 2811 bad = 1; 2812 break; 2813 } 2814 if (colour_palette_set(ictx->palette, idx, -1)) 2815 redraw = 1; 2816 if (*s == ';') 2817 s++; 2818 } 2819 if (bad) 2820 log_debug("bad OSC 104: %s", p); 2821 if (redraw) 2822 screen_write_fullredraw(&ictx->ctx); 2823 free(copy); 2824 } 2825 2826 void 2827 input_reply_clipboard(struct bufferevent *bev, const char *buf, size_t len, 2828 const char *end) 2829 { 2830 char *out = NULL; 2831 size_t outlen = 0; 2832 2833 if (buf != NULL && len != 0) { 2834 outlen = 4 * ((len + 2) / 3) + 1; 2835 out = xmalloc(outlen); 2836 if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) { 2837 free(out); 2838 return; 2839 } 2840 } 2841 2842 bufferevent_write(bev, "\033]52;;", 6); 2843 if (outlen != 0) 2844 bufferevent_write(bev, out, outlen); 2845 bufferevent_write(bev, end, strlen(end)); 2846 free(out); 2847 } 2848