input.c revision 1.223
1/* $OpenBSD: input.c,v 1.223 2023/12/27 20:13:35 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. */ 55struct 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. */ 63struct 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. */ 76struct 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. */ 129struct input_transition; 130static int input_split(struct input_ctx *); 131static int input_get(struct input_ctx *, u_int, int, int); 132static void printflike(2, 3) input_reply(struct input_ctx *, const char *, ...); 133static void input_set_state(struct input_ctx *, 134 const struct input_transition *); 135static void input_reset_cell(struct input_ctx *); 136 137static void input_osc_4(struct input_ctx *, const char *); 138static void input_osc_8(struct input_ctx *, const char *); 139static void input_osc_10(struct input_ctx *, const char *); 140static void input_osc_11(struct input_ctx *, const char *); 141static void input_osc_12(struct input_ctx *, const char *); 142static void input_osc_52(struct input_ctx *, const char *); 143static void input_osc_104(struct input_ctx *, const char *); 144static void input_osc_110(struct input_ctx *, const char *); 145static void input_osc_111(struct input_ctx *, const char *); 146static void input_osc_112(struct input_ctx *, const char *); 147static void input_osc_133(struct input_ctx *, const char *); 148 149/* Transition entry/exit handlers. */ 150static void input_clear(struct input_ctx *); 151static void input_ground(struct input_ctx *); 152static void input_enter_dcs(struct input_ctx *); 153static void input_enter_osc(struct input_ctx *); 154static void input_exit_osc(struct input_ctx *); 155static void input_enter_apc(struct input_ctx *); 156static void input_exit_apc(struct input_ctx *); 157static void input_enter_rename(struct input_ctx *); 158static void input_exit_rename(struct input_ctx *); 159 160/* Input state handlers. */ 161static int input_print(struct input_ctx *); 162static int input_intermediate(struct input_ctx *); 163static int input_parameter(struct input_ctx *); 164static int input_input(struct input_ctx *); 165static int input_c0_dispatch(struct input_ctx *); 166static int input_esc_dispatch(struct input_ctx *); 167static int input_csi_dispatch(struct input_ctx *); 168static void input_csi_dispatch_rm(struct input_ctx *); 169static void input_csi_dispatch_rm_private(struct input_ctx *); 170static void input_csi_dispatch_sm(struct input_ctx *); 171static void input_csi_dispatch_sm_private(struct input_ctx *); 172static void input_csi_dispatch_sm_graphics(struct input_ctx *); 173static void input_csi_dispatch_winops(struct input_ctx *); 174static void input_csi_dispatch_sgr_256(struct input_ctx *, int, u_int *); 175static void input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *); 176static void input_csi_dispatch_sgr(struct input_ctx *); 177static int input_dcs_dispatch(struct input_ctx *); 178static int input_top_bit_set(struct input_ctx *); 179static int input_end_bel(struct input_ctx *); 180 181/* Command table comparison function. */ 182static int input_table_compare(const void *, const void *); 183 184/* Command table entry. */ 185struct input_table_entry { 186 int ch; 187 const char *interm; 188 int type; 189}; 190 191/* Escape commands. */ 192enum input_esc_type { 193 INPUT_ESC_DECALN, 194 INPUT_ESC_DECKPAM, 195 INPUT_ESC_DECKPNM, 196 INPUT_ESC_DECRC, 197 INPUT_ESC_DECSC, 198 INPUT_ESC_HTS, 199 INPUT_ESC_IND, 200 INPUT_ESC_NEL, 201 INPUT_ESC_RI, 202 INPUT_ESC_RIS, 203 INPUT_ESC_SCSG0_OFF, 204 INPUT_ESC_SCSG0_ON, 205 INPUT_ESC_SCSG1_OFF, 206 INPUT_ESC_SCSG1_ON, 207 INPUT_ESC_ST 208}; 209 210/* Escape command table. */ 211static const struct input_table_entry input_esc_table[] = { 212 { '0', "(", INPUT_ESC_SCSG0_ON }, 213 { '0', ")", INPUT_ESC_SCSG1_ON }, 214 { '7', "", INPUT_ESC_DECSC }, 215 { '8', "", INPUT_ESC_DECRC }, 216 { '8', "#", INPUT_ESC_DECALN }, 217 { '=', "", INPUT_ESC_DECKPAM }, 218 { '>', "", INPUT_ESC_DECKPNM }, 219 { 'B', "(", INPUT_ESC_SCSG0_OFF }, 220 { 'B', ")", INPUT_ESC_SCSG1_OFF }, 221 { 'D', "", INPUT_ESC_IND }, 222 { 'E', "", INPUT_ESC_NEL }, 223 { 'H', "", INPUT_ESC_HTS }, 224 { 'M', "", INPUT_ESC_RI }, 225 { '\\', "", INPUT_ESC_ST }, 226 { 'c', "", INPUT_ESC_RIS }, 227}; 228 229/* Control (CSI) commands. */ 230enum input_csi_type { 231 INPUT_CSI_CBT, 232 INPUT_CSI_CNL, 233 INPUT_CSI_CPL, 234 INPUT_CSI_CUB, 235 INPUT_CSI_CUD, 236 INPUT_CSI_CUF, 237 INPUT_CSI_CUP, 238 INPUT_CSI_CUU, 239 INPUT_CSI_DA, 240 INPUT_CSI_DA_TWO, 241 INPUT_CSI_DCH, 242 INPUT_CSI_DECSCUSR, 243 INPUT_CSI_DECSTBM, 244 INPUT_CSI_DL, 245 INPUT_CSI_DSR, 246 INPUT_CSI_ECH, 247 INPUT_CSI_ED, 248 INPUT_CSI_EL, 249 INPUT_CSI_HPA, 250 INPUT_CSI_ICH, 251 INPUT_CSI_IL, 252 INPUT_CSI_MODOFF, 253 INPUT_CSI_MODSET, 254 INPUT_CSI_RCP, 255 INPUT_CSI_REP, 256 INPUT_CSI_RM, 257 INPUT_CSI_RM_PRIVATE, 258 INPUT_CSI_SCP, 259 INPUT_CSI_SD, 260 INPUT_CSI_SGR, 261 INPUT_CSI_SM, 262 INPUT_CSI_SM_PRIVATE, 263 INPUT_CSI_SM_GRAPHICS, 264 INPUT_CSI_SU, 265 INPUT_CSI_TBC, 266 INPUT_CSI_VPA, 267 INPUT_CSI_WINOPS, 268 INPUT_CSI_XDA 269}; 270 271/* Control (CSI) command table. */ 272static const struct input_table_entry input_csi_table[] = { 273 { '@', "", INPUT_CSI_ICH }, 274 { 'A', "", INPUT_CSI_CUU }, 275 { 'B', "", INPUT_CSI_CUD }, 276 { 'C', "", INPUT_CSI_CUF }, 277 { 'D', "", INPUT_CSI_CUB }, 278 { 'E', "", INPUT_CSI_CNL }, 279 { 'F', "", INPUT_CSI_CPL }, 280 { 'G', "", INPUT_CSI_HPA }, 281 { 'H', "", INPUT_CSI_CUP }, 282 { 'J', "", INPUT_CSI_ED }, 283 { 'K', "", INPUT_CSI_EL }, 284 { 'L', "", INPUT_CSI_IL }, 285 { 'M', "", INPUT_CSI_DL }, 286 { 'P', "", INPUT_CSI_DCH }, 287 { 'S', "", INPUT_CSI_SU }, 288 { 'S', "?", INPUT_CSI_SM_GRAPHICS }, 289 { 'T', "", INPUT_CSI_SD }, 290 { 'X', "", INPUT_CSI_ECH }, 291 { 'Z', "", INPUT_CSI_CBT }, 292 { '`', "", INPUT_CSI_HPA }, 293 { 'b', "", INPUT_CSI_REP }, 294 { 'c', "", INPUT_CSI_DA }, 295 { 'c', ">", INPUT_CSI_DA_TWO }, 296 { 'd', "", INPUT_CSI_VPA }, 297 { 'f', "", INPUT_CSI_CUP }, 298 { 'g', "", INPUT_CSI_TBC }, 299 { 'h', "", INPUT_CSI_SM }, 300 { 'h', "?", INPUT_CSI_SM_PRIVATE }, 301 { 'l', "", INPUT_CSI_RM }, 302 { 'l', "?", INPUT_CSI_RM_PRIVATE }, 303 { 'm', "", INPUT_CSI_SGR }, 304 { 'm', ">", INPUT_CSI_MODSET }, 305 { 'n', "", INPUT_CSI_DSR }, 306 { 'n', ">", INPUT_CSI_MODOFF }, 307 { 'q', " ", INPUT_CSI_DECSCUSR }, 308 { 'q', ">", INPUT_CSI_XDA }, 309 { 'r', "", INPUT_CSI_DECSTBM }, 310 { 's', "", INPUT_CSI_SCP }, 311 { 't', "", INPUT_CSI_WINOPS }, 312 { 'u', "", INPUT_CSI_RCP } 313}; 314 315/* Input transition. */ 316struct input_transition { 317 int first; 318 int last; 319 320 int (*handler)(struct input_ctx *); 321 const struct input_state *state; 322}; 323 324/* Input state. */ 325struct input_state { 326 const char *name; 327 void (*enter)(struct input_ctx *); 328 void (*exit)(struct input_ctx *); 329 const struct input_transition *transitions; 330}; 331 332/* State transitions available from all states. */ 333#define INPUT_STATE_ANYWHERE \ 334 { 0x18, 0x18, input_c0_dispatch, &input_state_ground }, \ 335 { 0x1a, 0x1a, input_c0_dispatch, &input_state_ground }, \ 336 { 0x1b, 0x1b, NULL, &input_state_esc_enter } 337 338/* Forward declarations of state tables. */ 339static const struct input_transition input_state_ground_table[]; 340static const struct input_transition input_state_esc_enter_table[]; 341static const struct input_transition input_state_esc_intermediate_table[]; 342static const struct input_transition input_state_csi_enter_table[]; 343static const struct input_transition input_state_csi_parameter_table[]; 344static const struct input_transition input_state_csi_intermediate_table[]; 345static const struct input_transition input_state_csi_ignore_table[]; 346static const struct input_transition input_state_dcs_enter_table[]; 347static const struct input_transition input_state_dcs_parameter_table[]; 348static const struct input_transition input_state_dcs_intermediate_table[]; 349static const struct input_transition input_state_dcs_handler_table[]; 350static const struct input_transition input_state_dcs_escape_table[]; 351static const struct input_transition input_state_dcs_ignore_table[]; 352static const struct input_transition input_state_osc_string_table[]; 353static const struct input_transition input_state_apc_string_table[]; 354static const struct input_transition input_state_rename_string_table[]; 355static const struct input_transition input_state_consume_st_table[]; 356 357/* ground state definition. */ 358static const struct input_state input_state_ground = { 359 "ground", 360 input_ground, NULL, 361 input_state_ground_table 362}; 363 364/* esc_enter state definition. */ 365static const struct input_state input_state_esc_enter = { 366 "esc_enter", 367 input_clear, NULL, 368 input_state_esc_enter_table 369}; 370 371/* esc_intermediate state definition. */ 372static const struct input_state input_state_esc_intermediate = { 373 "esc_intermediate", 374 NULL, NULL, 375 input_state_esc_intermediate_table 376}; 377 378/* csi_enter state definition. */ 379static const struct input_state input_state_csi_enter = { 380 "csi_enter", 381 input_clear, NULL, 382 input_state_csi_enter_table 383}; 384 385/* csi_parameter state definition. */ 386static const struct input_state input_state_csi_parameter = { 387 "csi_parameter", 388 NULL, NULL, 389 input_state_csi_parameter_table 390}; 391 392/* csi_intermediate state definition. */ 393static const struct input_state input_state_csi_intermediate = { 394 "csi_intermediate", 395 NULL, NULL, 396 input_state_csi_intermediate_table 397}; 398 399/* csi_ignore state definition. */ 400static const struct input_state input_state_csi_ignore = { 401 "csi_ignore", 402 NULL, NULL, 403 input_state_csi_ignore_table 404}; 405 406/* dcs_enter state definition. */ 407static const struct input_state input_state_dcs_enter = { 408 "dcs_enter", 409 input_enter_dcs, NULL, 410 input_state_dcs_enter_table 411}; 412 413/* dcs_parameter state definition. */ 414static const struct input_state input_state_dcs_parameter = { 415 "dcs_parameter", 416 NULL, NULL, 417 input_state_dcs_parameter_table 418}; 419 420/* dcs_intermediate state definition. */ 421static const struct input_state input_state_dcs_intermediate = { 422 "dcs_intermediate", 423 NULL, NULL, 424 input_state_dcs_intermediate_table 425}; 426 427/* dcs_handler state definition. */ 428static const struct input_state input_state_dcs_handler = { 429 "dcs_handler", 430 NULL, NULL, 431 input_state_dcs_handler_table 432}; 433 434/* dcs_escape state definition. */ 435static const struct input_state input_state_dcs_escape = { 436 "dcs_escape", 437 NULL, NULL, 438 input_state_dcs_escape_table 439}; 440 441/* dcs_ignore state definition. */ 442static const struct input_state input_state_dcs_ignore = { 443 "dcs_ignore", 444 NULL, NULL, 445 input_state_dcs_ignore_table 446}; 447 448/* osc_string state definition. */ 449static const struct input_state input_state_osc_string = { 450 "osc_string", 451 input_enter_osc, input_exit_osc, 452 input_state_osc_string_table 453}; 454 455/* apc_string state definition. */ 456static const struct input_state input_state_apc_string = { 457 "apc_string", 458 input_enter_apc, input_exit_apc, 459 input_state_apc_string_table 460}; 461 462/* rename_string state definition. */ 463static const struct input_state input_state_rename_string = { 464 "rename_string", 465 input_enter_rename, input_exit_rename, 466 input_state_rename_string_table 467}; 468 469/* consume_st state definition. */ 470static const struct input_state input_state_consume_st = { 471 "consume_st", 472 input_enter_rename, NULL, /* rename also waits for ST */ 473 input_state_consume_st_table 474}; 475 476/* ground state table. */ 477static const struct input_transition input_state_ground_table[] = { 478 INPUT_STATE_ANYWHERE, 479 480 { 0x00, 0x17, input_c0_dispatch, NULL }, 481 { 0x19, 0x19, input_c0_dispatch, NULL }, 482 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 483 { 0x20, 0x7e, input_print, NULL }, 484 { 0x7f, 0x7f, NULL, NULL }, 485 { 0x80, 0xff, input_top_bit_set, NULL }, 486 487 { -1, -1, NULL, NULL } 488}; 489 490/* esc_enter state table. */ 491static const struct input_transition input_state_esc_enter_table[] = { 492 INPUT_STATE_ANYWHERE, 493 494 { 0x00, 0x17, input_c0_dispatch, NULL }, 495 { 0x19, 0x19, input_c0_dispatch, NULL }, 496 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 497 { 0x20, 0x2f, input_intermediate, &input_state_esc_intermediate }, 498 { 0x30, 0x4f, input_esc_dispatch, &input_state_ground }, 499 { 0x50, 0x50, NULL, &input_state_dcs_enter }, 500 { 0x51, 0x57, input_esc_dispatch, &input_state_ground }, 501 { 0x58, 0x58, NULL, &input_state_consume_st }, 502 { 0x59, 0x59, input_esc_dispatch, &input_state_ground }, 503 { 0x5a, 0x5a, input_esc_dispatch, &input_state_ground }, 504 { 0x5b, 0x5b, NULL, &input_state_csi_enter }, 505 { 0x5c, 0x5c, input_esc_dispatch, &input_state_ground }, 506 { 0x5d, 0x5d, NULL, &input_state_osc_string }, 507 { 0x5e, 0x5e, NULL, &input_state_consume_st }, 508 { 0x5f, 0x5f, NULL, &input_state_apc_string }, 509 { 0x60, 0x6a, input_esc_dispatch, &input_state_ground }, 510 { 0x6b, 0x6b, NULL, &input_state_rename_string }, 511 { 0x6c, 0x7e, input_esc_dispatch, &input_state_ground }, 512 { 0x7f, 0xff, NULL, NULL }, 513 514 { -1, -1, NULL, NULL } 515}; 516 517/* esc_intermediate state table. */ 518static const struct input_transition input_state_esc_intermediate_table[] = { 519 INPUT_STATE_ANYWHERE, 520 521 { 0x00, 0x17, input_c0_dispatch, NULL }, 522 { 0x19, 0x19, input_c0_dispatch, NULL }, 523 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 524 { 0x20, 0x2f, input_intermediate, NULL }, 525 { 0x30, 0x7e, input_esc_dispatch, &input_state_ground }, 526 { 0x7f, 0xff, NULL, NULL }, 527 528 { -1, -1, NULL, NULL } 529}; 530 531/* csi_enter state table. */ 532static const struct input_transition input_state_csi_enter_table[] = { 533 INPUT_STATE_ANYWHERE, 534 535 { 0x00, 0x17, input_c0_dispatch, NULL }, 536 { 0x19, 0x19, input_c0_dispatch, NULL }, 537 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 538 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 539 { 0x30, 0x39, input_parameter, &input_state_csi_parameter }, 540 { 0x3a, 0x3a, input_parameter, &input_state_csi_parameter }, 541 { 0x3b, 0x3b, input_parameter, &input_state_csi_parameter }, 542 { 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter }, 543 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 544 { 0x7f, 0xff, NULL, NULL }, 545 546 { -1, -1, NULL, NULL } 547}; 548 549/* csi_parameter state table. */ 550static const struct input_transition input_state_csi_parameter_table[] = { 551 INPUT_STATE_ANYWHERE, 552 553 { 0x00, 0x17, input_c0_dispatch, NULL }, 554 { 0x19, 0x19, input_c0_dispatch, NULL }, 555 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 556 { 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, 557 { 0x30, 0x39, input_parameter, NULL }, 558 { 0x3a, 0x3a, input_parameter, NULL }, 559 { 0x3b, 0x3b, input_parameter, NULL }, 560 { 0x3c, 0x3f, NULL, &input_state_csi_ignore }, 561 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 562 { 0x7f, 0xff, NULL, NULL }, 563 564 { -1, -1, NULL, NULL } 565}; 566 567/* csi_intermediate state table. */ 568static const struct input_transition input_state_csi_intermediate_table[] = { 569 INPUT_STATE_ANYWHERE, 570 571 { 0x00, 0x17, input_c0_dispatch, NULL }, 572 { 0x19, 0x19, input_c0_dispatch, NULL }, 573 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 574 { 0x20, 0x2f, input_intermediate, NULL }, 575 { 0x30, 0x3f, NULL, &input_state_csi_ignore }, 576 { 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, 577 { 0x7f, 0xff, NULL, NULL }, 578 579 { -1, -1, NULL, NULL } 580}; 581 582/* csi_ignore state table. */ 583static const struct input_transition input_state_csi_ignore_table[] = { 584 INPUT_STATE_ANYWHERE, 585 586 { 0x00, 0x17, input_c0_dispatch, NULL }, 587 { 0x19, 0x19, input_c0_dispatch, NULL }, 588 { 0x1c, 0x1f, input_c0_dispatch, NULL }, 589 { 0x20, 0x3f, NULL, NULL }, 590 { 0x40, 0x7e, NULL, &input_state_ground }, 591 { 0x7f, 0xff, NULL, NULL }, 592 593 { -1, -1, NULL, NULL } 594}; 595 596/* dcs_enter state table. */ 597static const struct input_transition input_state_dcs_enter_table[] = { 598 INPUT_STATE_ANYWHERE, 599 600 { 0x00, 0x17, NULL, NULL }, 601 { 0x19, 0x19, NULL, NULL }, 602 { 0x1c, 0x1f, NULL, NULL }, 603 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 604 { 0x30, 0x39, input_parameter, &input_state_dcs_parameter }, 605 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 606 { 0x3b, 0x3b, input_parameter, &input_state_dcs_parameter }, 607 { 0x3c, 0x3f, input_intermediate, &input_state_dcs_parameter }, 608 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 609 { 0x7f, 0xff, NULL, NULL }, 610 611 { -1, -1, NULL, NULL } 612}; 613 614/* dcs_parameter state table. */ 615static const struct input_transition input_state_dcs_parameter_table[] = { 616 INPUT_STATE_ANYWHERE, 617 618 { 0x00, 0x17, NULL, NULL }, 619 { 0x19, 0x19, NULL, NULL }, 620 { 0x1c, 0x1f, NULL, NULL }, 621 { 0x20, 0x2f, input_intermediate, &input_state_dcs_intermediate }, 622 { 0x30, 0x39, input_parameter, NULL }, 623 { 0x3a, 0x3a, NULL, &input_state_dcs_ignore }, 624 { 0x3b, 0x3b, input_parameter, NULL }, 625 { 0x3c, 0x3f, NULL, &input_state_dcs_ignore }, 626 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 627 { 0x7f, 0xff, NULL, NULL }, 628 629 { -1, -1, NULL, NULL } 630}; 631 632/* dcs_intermediate state table. */ 633static const struct input_transition input_state_dcs_intermediate_table[] = { 634 INPUT_STATE_ANYWHERE, 635 636 { 0x00, 0x17, NULL, NULL }, 637 { 0x19, 0x19, NULL, NULL }, 638 { 0x1c, 0x1f, NULL, NULL }, 639 { 0x20, 0x2f, input_intermediate, NULL }, 640 { 0x30, 0x3f, NULL, &input_state_dcs_ignore }, 641 { 0x40, 0x7e, input_input, &input_state_dcs_handler }, 642 { 0x7f, 0xff, NULL, NULL }, 643 644 { -1, -1, NULL, NULL } 645}; 646 647/* dcs_handler state table. */ 648static const struct input_transition input_state_dcs_handler_table[] = { 649 /* No INPUT_STATE_ANYWHERE */ 650 651 { 0x00, 0x1a, input_input, NULL }, 652 { 0x1b, 0x1b, NULL, &input_state_dcs_escape }, 653 { 0x1c, 0xff, input_input, NULL }, 654 655 { -1, -1, NULL, NULL } 656}; 657 658/* dcs_escape state table. */ 659static const struct input_transition input_state_dcs_escape_table[] = { 660 /* No INPUT_STATE_ANYWHERE */ 661 662 { 0x00, 0x5b, input_input, &input_state_dcs_handler }, 663 { 0x5c, 0x5c, input_dcs_dispatch, &input_state_ground }, 664 { 0x5d, 0xff, input_input, &input_state_dcs_handler }, 665 666 { -1, -1, NULL, NULL } 667}; 668 669/* dcs_ignore state table. */ 670static const struct input_transition input_state_dcs_ignore_table[] = { 671 INPUT_STATE_ANYWHERE, 672 673 { 0x00, 0x17, NULL, NULL }, 674 { 0x19, 0x19, NULL, NULL }, 675 { 0x1c, 0x1f, NULL, NULL }, 676 { 0x20, 0xff, NULL, NULL }, 677 678 { -1, -1, NULL, NULL } 679}; 680 681/* osc_string state table. */ 682static const struct input_transition input_state_osc_string_table[] = { 683 INPUT_STATE_ANYWHERE, 684 685 { 0x00, 0x06, NULL, NULL }, 686 { 0x07, 0x07, input_end_bel, &input_state_ground }, 687 { 0x08, 0x17, NULL, NULL }, 688 { 0x19, 0x19, NULL, NULL }, 689 { 0x1c, 0x1f, NULL, NULL }, 690 { 0x20, 0xff, input_input, NULL }, 691 692 { -1, -1, NULL, NULL } 693}; 694 695/* apc_string state table. */ 696static const struct input_transition input_state_apc_string_table[] = { 697 INPUT_STATE_ANYWHERE, 698 699 { 0x00, 0x17, NULL, NULL }, 700 { 0x19, 0x19, NULL, NULL }, 701 { 0x1c, 0x1f, NULL, NULL }, 702 { 0x20, 0xff, input_input, NULL }, 703 704 { -1, -1, NULL, NULL } 705}; 706 707/* rename_string state table. */ 708static const struct input_transition input_state_rename_string_table[] = { 709 INPUT_STATE_ANYWHERE, 710 711 { 0x00, 0x17, NULL, NULL }, 712 { 0x19, 0x19, NULL, NULL }, 713 { 0x1c, 0x1f, NULL, NULL }, 714 { 0x20, 0xff, input_input, NULL }, 715 716 { -1, -1, NULL, NULL } 717}; 718 719/* consume_st state table. */ 720static const struct input_transition input_state_consume_st_table[] = { 721 INPUT_STATE_ANYWHERE, 722 723 { 0x00, 0x17, NULL, NULL }, 724 { 0x19, 0x19, NULL, NULL }, 725 { 0x1c, 0x1f, NULL, NULL }, 726 { 0x20, 0xff, NULL, NULL }, 727 728 { -1, -1, NULL, NULL } 729}; 730 731/* Input table compare. */ 732static int 733input_table_compare(const void *key, const void *value) 734{ 735 const struct input_ctx *ictx = key; 736 const struct input_table_entry *entry = value; 737 738 if (ictx->ch != entry->ch) 739 return (ictx->ch - entry->ch); 740 return (strcmp(ictx->interm_buf, entry->interm)); 741} 742 743/* 744 * Timer - if this expires then have been waiting for a terminator for too 745 * long, so reset to ground. 746 */ 747static void 748input_timer_callback(__unused int fd, __unused short events, void *arg) 749{ 750 struct input_ctx *ictx = arg; 751 752 log_debug("%s: %s expired" , __func__, ictx->state->name); 753 input_reset(ictx, 0); 754} 755 756/* Start the timer. */ 757static void 758input_start_timer(struct input_ctx *ictx) 759{ 760 struct timeval tv = { .tv_sec = 5, .tv_usec = 0 }; 761 762 event_del(&ictx->timer); 763 event_add(&ictx->timer, &tv); 764} 765 766/* Reset cell state to default. */ 767static void 768input_reset_cell(struct input_ctx *ictx) 769{ 770 memcpy(&ictx->cell.cell, &grid_default_cell, sizeof ictx->cell.cell); 771 ictx->cell.set = 0; 772 ictx->cell.g0set = ictx->cell.g1set = 0; 773 774 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 775 ictx->old_cx = 0; 776 ictx->old_cy = 0; 777} 778 779/* Save screen state. */ 780static void 781input_save_state(struct input_ctx *ictx) 782{ 783 struct screen_write_ctx *sctx = &ictx->ctx; 784 struct screen *s = sctx->s; 785 786 memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell); 787 ictx->old_cx = s->cx; 788 ictx->old_cy = s->cy; 789 ictx->old_mode = s->mode; 790} 791 792/* Restore screen state. */ 793static void 794input_restore_state(struct input_ctx *ictx) 795{ 796 struct screen_write_ctx *sctx = &ictx->ctx; 797 798 memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell); 799 if (ictx->old_mode & MODE_ORIGIN) 800 screen_write_mode_set(sctx, MODE_ORIGIN); 801 else 802 screen_write_mode_clear(sctx, MODE_ORIGIN); 803 screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy, 0); 804} 805 806/* Initialise input parser. */ 807struct input_ctx * 808input_init(struct window_pane *wp, struct bufferevent *bev, 809 struct colour_palette *palette) 810{ 811 struct input_ctx *ictx; 812 813 ictx = xcalloc(1, sizeof *ictx); 814 ictx->wp = wp; 815 ictx->event = bev; 816 ictx->palette = palette; 817 818 ictx->input_space = INPUT_BUF_START; 819 ictx->input_buf = xmalloc(INPUT_BUF_START); 820 821 ictx->since_ground = evbuffer_new(); 822 if (ictx->since_ground == NULL) 823 fatalx("out of memory"); 824 825 evtimer_set(&ictx->timer, input_timer_callback, ictx); 826 827 input_reset(ictx, 0); 828 return (ictx); 829} 830 831/* Destroy input parser. */ 832void 833input_free(struct input_ctx *ictx) 834{ 835 u_int i; 836 837 for (i = 0; i < ictx->param_list_len; i++) { 838 if (ictx->param_list[i].type == INPUT_STRING) 839 free(ictx->param_list[i].str); 840 } 841 842 event_del(&ictx->timer); 843 844 free(ictx->input_buf); 845 evbuffer_free(ictx->since_ground); 846 847 free(ictx); 848} 849 850/* Reset input state and clear screen. */ 851void 852input_reset(struct input_ctx *ictx, int clear) 853{ 854 struct screen_write_ctx *sctx = &ictx->ctx; 855 struct window_pane *wp = ictx->wp; 856 857 input_reset_cell(ictx); 858 859 if (clear && wp != NULL) { 860 if (TAILQ_EMPTY(&wp->modes)) 861 screen_write_start_pane(sctx, wp, &wp->base); 862 else 863 screen_write_start(sctx, &wp->base); 864 screen_write_reset(sctx); 865 screen_write_stop(sctx); 866 } 867 868 input_clear(ictx); 869 870 ictx->last = -1; 871 872 ictx->state = &input_state_ground; 873 ictx->flags = 0; 874} 875 876/* Return pending data. */ 877struct evbuffer * 878input_pending(struct input_ctx *ictx) 879{ 880 return (ictx->since_ground); 881} 882 883/* Change input state. */ 884static void 885input_set_state(struct input_ctx *ictx, const struct input_transition *itr) 886{ 887 if (ictx->state->exit != NULL) 888 ictx->state->exit(ictx); 889 ictx->state = itr->state; 890 if (ictx->state->enter != NULL) 891 ictx->state->enter(ictx); 892} 893 894/* Parse data. */ 895static void 896input_parse(struct input_ctx *ictx, u_char *buf, size_t len) 897{ 898 struct screen_write_ctx *sctx = &ictx->ctx; 899 const struct input_state *state = NULL; 900 const struct input_transition *itr = NULL; 901 size_t off = 0; 902 903 /* Parse the input. */ 904 while (off < len) { 905 ictx->ch = buf[off++]; 906 907 /* Find the transition. */ 908 if (ictx->state != state || 909 itr == NULL || 910 ictx->ch < itr->first || 911 ictx->ch > itr->last) { 912 itr = ictx->state->transitions; 913 while (itr->first != -1 && itr->last != -1) { 914 if (ictx->ch >= itr->first && 915 ictx->ch <= itr->last) 916 break; 917 itr++; 918 } 919 if (itr->first == -1 || itr->last == -1) { 920 /* No transition? Eh? */ 921 fatalx("no transition from state"); 922 } 923 } 924 state = ictx->state; 925 926 /* 927 * Any state except print stops the current collection. This is 928 * an optimization to avoid checking if the attributes have 929 * changed for every character. It will stop unnecessarily for 930 * sequences that don't make a terminal change, but they should 931 * be the minority. 932 */ 933 if (itr->handler != input_print) 934 screen_write_collect_end(sctx); 935 936 /* 937 * Execute the handler, if any. Don't switch state if it 938 * returns non-zero. 939 */ 940 if (itr->handler != NULL && itr->handler(ictx) != 0) 941 continue; 942 943 /* And switch state, if necessary. */ 944 if (itr->state != NULL) 945 input_set_state(ictx, itr); 946 947 /* If not in ground state, save input. */ 948 if (ictx->state != &input_state_ground) 949 evbuffer_add(ictx->since_ground, &ictx->ch, 1); 950 } 951} 952 953/* Parse input from pane. */ 954void 955input_parse_pane(struct window_pane *wp) 956{ 957 void *new_data; 958 size_t new_size; 959 960 new_data = window_pane_get_new_data(wp, &wp->offset, &new_size); 961 input_parse_buffer(wp, new_data, new_size); 962 window_pane_update_used_data(wp, &wp->offset, new_size); 963} 964 965/* Parse given input. */ 966void 967input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len) 968{ 969 struct input_ctx *ictx = wp->ictx; 970 struct screen_write_ctx *sctx = &ictx->ctx; 971 972 if (len == 0) 973 return; 974 975 window_update_activity(wp->window); 976 wp->flags |= PANE_CHANGED; 977 978 /* Flag new input while in a mode. */ 979 if (!TAILQ_EMPTY(&wp->modes)) 980 wp->flags |= PANE_UNSEENCHANGES; 981 982 /* NULL wp if there is a mode set as don't want to update the tty. */ 983 if (TAILQ_EMPTY(&wp->modes)) 984 screen_write_start_pane(sctx, wp, &wp->base); 985 else 986 screen_write_start(sctx, &wp->base); 987 988 log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id, 989 ictx->state->name, len, (int)len, buf); 990 991 input_parse(ictx, buf, len); 992 screen_write_stop(sctx); 993} 994 995/* Parse given input for screen. */ 996void 997input_parse_screen(struct input_ctx *ictx, struct screen *s, 998 screen_write_init_ctx_cb cb, void *arg, u_char *buf, size_t len) 999{ 1000 struct screen_write_ctx *sctx = &ictx->ctx; 1001 1002 if (len == 0) 1003 return; 1004 1005 screen_write_start_callback(sctx, s, cb, arg); 1006 input_parse(ictx, buf, len); 1007 screen_write_stop(sctx); 1008} 1009 1010/* Split the parameter list (if any). */ 1011static int 1012input_split(struct input_ctx *ictx) 1013{ 1014 const char *errstr; 1015 char *ptr, *out; 1016 struct input_param *ip; 1017 u_int i; 1018 1019 for (i = 0; i < ictx->param_list_len; i++) { 1020 if (ictx->param_list[i].type == INPUT_STRING) 1021 free(ictx->param_list[i].str); 1022 } 1023 ictx->param_list_len = 0; 1024 1025 if (ictx->param_len == 0) 1026 return (0); 1027 ip = &ictx->param_list[0]; 1028 1029 ptr = ictx->param_buf; 1030 while ((out = strsep(&ptr, ";")) != NULL) { 1031 if (*out == '\0') 1032 ip->type = INPUT_MISSING; 1033 else { 1034 if (strchr(out, ':') != NULL) { 1035 ip->type = INPUT_STRING; 1036 ip->str = xstrdup(out); 1037 } else { 1038 ip->type = INPUT_NUMBER; 1039 ip->num = strtonum(out, 0, INT_MAX, &errstr); 1040 if (errstr != NULL) 1041 return (-1); 1042 } 1043 } 1044 ip = &ictx->param_list[++ictx->param_list_len]; 1045 if (ictx->param_list_len == nitems(ictx->param_list)) 1046 return (-1); 1047 } 1048 1049 for (i = 0; i < ictx->param_list_len; i++) { 1050 ip = &ictx->param_list[i]; 1051 if (ip->type == INPUT_MISSING) 1052 log_debug("parameter %u: missing", i); 1053 else if (ip->type == INPUT_STRING) 1054 log_debug("parameter %u: string %s", i, ip->str); 1055 else if (ip->type == INPUT_NUMBER) 1056 log_debug("parameter %u: number %d", i, ip->num); 1057 } 1058 1059 return (0); 1060} 1061 1062/* Get an argument or return default value. */ 1063static int 1064input_get(struct input_ctx *ictx, u_int validx, int minval, int defval) 1065{ 1066 struct input_param *ip; 1067 int retval; 1068 1069 if (validx >= ictx->param_list_len) 1070 return (defval); 1071 ip = &ictx->param_list[validx]; 1072 if (ip->type == INPUT_MISSING) 1073 return (defval); 1074 if (ip->type == INPUT_STRING) 1075 return (-1); 1076 retval = ip->num; 1077 if (retval < minval) 1078 return (minval); 1079 return (retval); 1080} 1081 1082/* Reply to terminal query. */ 1083static void 1084input_reply(struct input_ctx *ictx, const char *fmt, ...) 1085{ 1086 struct bufferevent *bev = ictx->event; 1087 va_list ap; 1088 char *reply; 1089 1090 if (bev == NULL) 1091 return; 1092 1093 va_start(ap, fmt); 1094 xvasprintf(&reply, fmt, ap); 1095 va_end(ap); 1096 1097 log_debug("%s: %s", __func__, reply); 1098 bufferevent_write(bev, reply, strlen(reply)); 1099 free(reply); 1100} 1101 1102/* Clear saved state. */ 1103static void 1104input_clear(struct input_ctx *ictx) 1105{ 1106 event_del(&ictx->timer); 1107 1108 *ictx->interm_buf = '\0'; 1109 ictx->interm_len = 0; 1110 1111 *ictx->param_buf = '\0'; 1112 ictx->param_len = 0; 1113 1114 *ictx->input_buf = '\0'; 1115 ictx->input_len = 0; 1116 1117 ictx->input_end = INPUT_END_ST; 1118 1119 ictx->flags &= ~INPUT_DISCARD; 1120} 1121 1122/* Reset for ground state. */ 1123static void 1124input_ground(struct input_ctx *ictx) 1125{ 1126 event_del(&ictx->timer); 1127 evbuffer_drain(ictx->since_ground, EVBUFFER_LENGTH(ictx->since_ground)); 1128 1129 if (ictx->input_space > INPUT_BUF_START) { 1130 ictx->input_space = INPUT_BUF_START; 1131 ictx->input_buf = xrealloc(ictx->input_buf, INPUT_BUF_START); 1132 } 1133} 1134 1135/* Output this character to the screen. */ 1136static int 1137input_print(struct input_ctx *ictx) 1138{ 1139 struct screen_write_ctx *sctx = &ictx->ctx; 1140 int set; 1141 1142 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1143 1144 set = ictx->cell.set == 0 ? ictx->cell.g0set : ictx->cell.g1set; 1145 if (set == 1) 1146 ictx->cell.cell.attr |= GRID_ATTR_CHARSET; 1147 else 1148 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1149 1150 utf8_set(&ictx->cell.cell.data, ictx->ch); 1151 screen_write_collect_add(sctx, &ictx->cell.cell); 1152 ictx->last = ictx->ch; 1153 1154 ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET; 1155 1156 return (0); 1157} 1158 1159/* Collect intermediate string. */ 1160static int 1161input_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. */ 1174static int 1175input_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. */ 1188static int 1189input_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. */ 1210static int 1211input_c0_dispatch(struct input_ctx *ictx) 1212{ 1213 struct screen_write_ctx *sctx = &ictx->ctx; 1214 struct window_pane *wp = ictx->wp; 1215 struct screen *s = sctx->s; 1216 1217 ictx->utf8started = 0; /* can't be valid UTF-8 */ 1218 1219 log_debug("%s: '%c'", __func__, ictx->ch); 1220 1221 switch (ictx->ch) { 1222 case '\000': /* NUL */ 1223 break; 1224 case '\007': /* BEL */ 1225 if (wp != NULL) 1226 alerts_queue(wp->window, WINDOW_BELL); 1227 break; 1228 case '\010': /* BS */ 1229 screen_write_backspace(sctx); 1230 break; 1231 case '\011': /* HT */ 1232 /* Don't tab beyond the end of the line. */ 1233 if (s->cx >= screen_size_x(s) - 1) 1234 break; 1235 1236 /* Find the next tab point, or use the last column if none. */ 1237 do { 1238 s->cx++; 1239 if (bit_test(s->tabs, s->cx)) 1240 break; 1241 } while (s->cx < screen_size_x(s) - 1); 1242 break; 1243 case '\012': /* LF */ 1244 case '\013': /* VT */ 1245 case '\014': /* FF */ 1246 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1247 if (s->mode & MODE_CRLF) 1248 screen_write_carriagereturn(sctx); 1249 break; 1250 case '\015': /* CR */ 1251 screen_write_carriagereturn(sctx); 1252 break; 1253 case '\016': /* SO */ 1254 ictx->cell.set = 1; 1255 break; 1256 case '\017': /* SI */ 1257 ictx->cell.set = 0; 1258 break; 1259 default: 1260 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1261 break; 1262 } 1263 1264 ictx->last = -1; 1265 return (0); 1266} 1267 1268/* Execute escape sequence. */ 1269static int 1270input_esc_dispatch(struct input_ctx *ictx) 1271{ 1272 struct screen_write_ctx *sctx = &ictx->ctx; 1273 struct screen *s = sctx->s; 1274 struct input_table_entry *entry; 1275 1276 if (ictx->flags & INPUT_DISCARD) 1277 return (0); 1278 log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf); 1279 1280 entry = bsearch(ictx, input_esc_table, nitems(input_esc_table), 1281 sizeof input_esc_table[0], input_table_compare); 1282 if (entry == NULL) { 1283 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1284 return (0); 1285 } 1286 1287 switch (entry->type) { 1288 case INPUT_ESC_RIS: 1289 colour_palette_clear(ictx->palette); 1290 input_reset_cell(ictx); 1291 screen_write_reset(sctx); 1292 screen_write_fullredraw(sctx); 1293 break; 1294 case INPUT_ESC_IND: 1295 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1296 break; 1297 case INPUT_ESC_NEL: 1298 screen_write_carriagereturn(sctx); 1299 screen_write_linefeed(sctx, 0, ictx->cell.cell.bg); 1300 break; 1301 case INPUT_ESC_HTS: 1302 if (s->cx < screen_size_x(s)) 1303 bit_set(s->tabs, s->cx); 1304 break; 1305 case INPUT_ESC_RI: 1306 screen_write_reverseindex(sctx, ictx->cell.cell.bg); 1307 break; 1308 case INPUT_ESC_DECKPAM: 1309 screen_write_mode_set(sctx, MODE_KKEYPAD); 1310 break; 1311 case INPUT_ESC_DECKPNM: 1312 screen_write_mode_clear(sctx, MODE_KKEYPAD); 1313 break; 1314 case INPUT_ESC_DECSC: 1315 input_save_state(ictx); 1316 break; 1317 case INPUT_ESC_DECRC: 1318 input_restore_state(ictx); 1319 break; 1320 case INPUT_ESC_DECALN: 1321 screen_write_alignmenttest(sctx); 1322 break; 1323 case INPUT_ESC_SCSG0_ON: 1324 ictx->cell.g0set = 1; 1325 break; 1326 case INPUT_ESC_SCSG0_OFF: 1327 ictx->cell.g0set = 0; 1328 break; 1329 case INPUT_ESC_SCSG1_ON: 1330 ictx->cell.g1set = 1; 1331 break; 1332 case INPUT_ESC_SCSG1_OFF: 1333 ictx->cell.g1set = 0; 1334 break; 1335 case INPUT_ESC_ST: 1336 /* ST terminates OSC but the state transition already did it. */ 1337 break; 1338 } 1339 1340 ictx->last = -1; 1341 return (0); 1342} 1343 1344/* Execute control sequence. */ 1345static int 1346input_csi_dispatch(struct input_ctx *ictx) 1347{ 1348 struct screen_write_ctx *sctx = &ictx->ctx; 1349 struct screen *s = sctx->s; 1350 struct input_table_entry *entry; 1351 int i, n, m; 1352 u_int cx, bg = ictx->cell.cell.bg; 1353 1354 if (ictx->flags & INPUT_DISCARD) 1355 return (0); 1356 1357 log_debug("%s: '%c' \"%s\" \"%s\"", __func__, ictx->ch, 1358 ictx->interm_buf, ictx->param_buf); 1359 1360 if (input_split(ictx) != 0) 1361 return (0); 1362 1363 entry = bsearch(ictx, input_csi_table, nitems(input_csi_table), 1364 sizeof input_csi_table[0], input_table_compare); 1365 if (entry == NULL) { 1366 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1367 return (0); 1368 } 1369 1370 switch (entry->type) { 1371 case INPUT_CSI_CBT: 1372 /* Find the previous tab point, n times. */ 1373 cx = s->cx; 1374 if (cx > screen_size_x(s) - 1) 1375 cx = screen_size_x(s) - 1; 1376 n = input_get(ictx, 0, 1, 1); 1377 if (n == -1) 1378 break; 1379 while (cx > 0 && n-- > 0) { 1380 do 1381 cx--; 1382 while (cx > 0 && !bit_test(s->tabs, cx)); 1383 } 1384 s->cx = cx; 1385 break; 1386 case INPUT_CSI_CUB: 1387 n = input_get(ictx, 0, 1, 1); 1388 if (n != -1) 1389 screen_write_cursorleft(sctx, n); 1390 break; 1391 case INPUT_CSI_CUD: 1392 n = input_get(ictx, 0, 1, 1); 1393 if (n != -1) 1394 screen_write_cursordown(sctx, n); 1395 break; 1396 case INPUT_CSI_CUF: 1397 n = input_get(ictx, 0, 1, 1); 1398 if (n != -1) 1399 screen_write_cursorright(sctx, n); 1400 break; 1401 case INPUT_CSI_CUP: 1402 n = input_get(ictx, 0, 1, 1); 1403 m = input_get(ictx, 1, 1, 1); 1404 if (n != -1 && m != -1) 1405 screen_write_cursormove(sctx, m - 1, n - 1, 1); 1406 break; 1407 case INPUT_CSI_MODSET: 1408 n = input_get(ictx, 0, 0, 0); 1409 m = input_get(ictx, 1, 0, 0); 1410 if (options_get_number(global_options, "extended-keys") == 2) 1411 break; 1412 if (n == 0 || (n == 4 && m == 0)) 1413 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1414 else if (n == 4 && (m == 1 || m == 2)) 1415 screen_write_mode_set(sctx, MODE_KEXTENDED); 1416 break; 1417 case INPUT_CSI_MODOFF: 1418 n = input_get(ictx, 0, 0, 0); 1419 if (n == 4) 1420 screen_write_mode_clear(sctx, MODE_KEXTENDED); 1421 break; 1422 case INPUT_CSI_WINOPS: 1423 input_csi_dispatch_winops(ictx); 1424 break; 1425 case INPUT_CSI_CUU: 1426 n = input_get(ictx, 0, 1, 1); 1427 if (n != -1) 1428 screen_write_cursorup(sctx, n); 1429 break; 1430 case INPUT_CSI_CNL: 1431 n = input_get(ictx, 0, 1, 1); 1432 if (n != -1) { 1433 screen_write_carriagereturn(sctx); 1434 screen_write_cursordown(sctx, n); 1435 } 1436 break; 1437 case INPUT_CSI_CPL: 1438 n = input_get(ictx, 0, 1, 1); 1439 if (n != -1) { 1440 screen_write_carriagereturn(sctx); 1441 screen_write_cursorup(sctx, n); 1442 } 1443 break; 1444 case INPUT_CSI_DA: 1445 switch (input_get(ictx, 0, 0, 0)) { 1446 case -1: 1447 break; 1448 case 0: 1449 input_reply(ictx, "\033[?1;2c"); 1450 break; 1451 default: 1452 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1453 break; 1454 } 1455 break; 1456 case INPUT_CSI_DA_TWO: 1457 switch (input_get(ictx, 0, 0, 0)) { 1458 case -1: 1459 break; 1460 case 0: 1461 input_reply(ictx, "\033[>84;0;0c"); 1462 break; 1463 default: 1464 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1465 break; 1466 } 1467 break; 1468 case INPUT_CSI_ECH: 1469 n = input_get(ictx, 0, 1, 1); 1470 if (n != -1) 1471 screen_write_clearcharacter(sctx, n, bg); 1472 break; 1473 case INPUT_CSI_DCH: 1474 n = input_get(ictx, 0, 1, 1); 1475 if (n != -1) 1476 screen_write_deletecharacter(sctx, n, bg); 1477 break; 1478 case INPUT_CSI_DECSTBM: 1479 n = input_get(ictx, 0, 1, 1); 1480 m = input_get(ictx, 1, 1, screen_size_y(s)); 1481 if (n != -1 && m != -1) 1482 screen_write_scrollregion(sctx, n - 1, m - 1); 1483 break; 1484 case INPUT_CSI_DL: 1485 n = input_get(ictx, 0, 1, 1); 1486 if (n != -1) 1487 screen_write_deleteline(sctx, n, bg); 1488 break; 1489 case INPUT_CSI_DSR: 1490 switch (input_get(ictx, 0, 0, 0)) { 1491 case -1: 1492 break; 1493 case 5: 1494 input_reply(ictx, "\033[0n"); 1495 break; 1496 case 6: 1497 input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1); 1498 break; 1499 default: 1500 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1501 break; 1502 } 1503 break; 1504 case INPUT_CSI_ED: 1505 switch (input_get(ictx, 0, 0, 0)) { 1506 case -1: 1507 break; 1508 case 0: 1509 screen_write_clearendofscreen(sctx, bg); 1510 break; 1511 case 1: 1512 screen_write_clearstartofscreen(sctx, bg); 1513 break; 1514 case 2: 1515 screen_write_clearscreen(sctx, bg); 1516 break; 1517 case 3: 1518 if (input_get(ictx, 1, 0, 0) == 0) { 1519 /* 1520 * Linux console extension to clear history 1521 * (for example before locking the screen). 1522 */ 1523 screen_write_clearhistory(sctx); 1524 } 1525 break; 1526 default: 1527 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1528 break; 1529 } 1530 break; 1531 case INPUT_CSI_EL: 1532 switch (input_get(ictx, 0, 0, 0)) { 1533 case -1: 1534 break; 1535 case 0: 1536 screen_write_clearendofline(sctx, bg); 1537 break; 1538 case 1: 1539 screen_write_clearstartofline(sctx, bg); 1540 break; 1541 case 2: 1542 screen_write_clearline(sctx, bg); 1543 break; 1544 default: 1545 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1546 break; 1547 } 1548 break; 1549 case INPUT_CSI_HPA: 1550 n = input_get(ictx, 0, 1, 1); 1551 if (n != -1) 1552 screen_write_cursormove(sctx, n - 1, -1, 1); 1553 break; 1554 case INPUT_CSI_ICH: 1555 n = input_get(ictx, 0, 1, 1); 1556 if (n != -1) 1557 screen_write_insertcharacter(sctx, n, bg); 1558 break; 1559 case INPUT_CSI_IL: 1560 n = input_get(ictx, 0, 1, 1); 1561 if (n != -1) 1562 screen_write_insertline(sctx, n, bg); 1563 break; 1564 case INPUT_CSI_REP: 1565 n = input_get(ictx, 0, 1, 1); 1566 if (n == -1) 1567 break; 1568 1569 m = screen_size_x(s) - s->cx; 1570 if (n > m) 1571 n = m; 1572 1573 if (ictx->last == -1) 1574 break; 1575 ictx->ch = ictx->last; 1576 1577 for (i = 0; i < n; i++) 1578 input_print(ictx); 1579 break; 1580 case INPUT_CSI_RCP: 1581 input_restore_state(ictx); 1582 break; 1583 case INPUT_CSI_RM: 1584 input_csi_dispatch_rm(ictx); 1585 break; 1586 case INPUT_CSI_RM_PRIVATE: 1587 input_csi_dispatch_rm_private(ictx); 1588 break; 1589 case INPUT_CSI_SCP: 1590 input_save_state(ictx); 1591 break; 1592 case INPUT_CSI_SGR: 1593 input_csi_dispatch_sgr(ictx); 1594 break; 1595 case INPUT_CSI_SM: 1596 input_csi_dispatch_sm(ictx); 1597 break; 1598 case INPUT_CSI_SM_PRIVATE: 1599 input_csi_dispatch_sm_private(ictx); 1600 break; 1601 case INPUT_CSI_SM_GRAPHICS: 1602 input_csi_dispatch_sm_graphics(ictx); 1603 break; 1604 case INPUT_CSI_SU: 1605 n = input_get(ictx, 0, 1, 1); 1606 if (n != -1) 1607 screen_write_scrollup(sctx, n, bg); 1608 break; 1609 case INPUT_CSI_SD: 1610 n = input_get(ictx, 0, 1, 1); 1611 if (n != -1) 1612 screen_write_scrolldown(sctx, n, bg); 1613 break; 1614 case INPUT_CSI_TBC: 1615 switch (input_get(ictx, 0, 0, 0)) { 1616 case -1: 1617 break; 1618 case 0: 1619 if (s->cx < screen_size_x(s)) 1620 bit_clear(s->tabs, s->cx); 1621 break; 1622 case 3: 1623 bit_nclear(s->tabs, 0, screen_size_x(s) - 1); 1624 break; 1625 default: 1626 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1627 break; 1628 } 1629 break; 1630 case INPUT_CSI_VPA: 1631 n = input_get(ictx, 0, 1, 1); 1632 if (n != -1) 1633 screen_write_cursormove(sctx, -1, n - 1, 1); 1634 break; 1635 case INPUT_CSI_DECSCUSR: 1636 n = input_get(ictx, 0, 0, 0); 1637 if (n != -1) 1638 screen_set_cursor_style(n, &s->cstyle, &s->mode); 1639 break; 1640 case INPUT_CSI_XDA: 1641 n = input_get(ictx, 0, 0, 0); 1642 if (n == 0) 1643 input_reply(ictx, "\033P>|tmux %s\033\\", getversion()); 1644 break; 1645 1646 } 1647 1648 ictx->last = -1; 1649 return (0); 1650} 1651 1652/* Handle CSI RM. */ 1653static void 1654input_csi_dispatch_rm(struct input_ctx *ictx) 1655{ 1656 struct screen_write_ctx *sctx = &ictx->ctx; 1657 u_int i; 1658 1659 for (i = 0; i < ictx->param_list_len; i++) { 1660 switch (input_get(ictx, i, 0, -1)) { 1661 case -1: 1662 break; 1663 case 4: /* IRM */ 1664 screen_write_mode_clear(sctx, MODE_INSERT); 1665 break; 1666 case 34: 1667 screen_write_mode_set(sctx, MODE_CURSOR_VERY_VISIBLE); 1668 break; 1669 default: 1670 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1671 break; 1672 } 1673 } 1674} 1675 1676/* Handle CSI private RM. */ 1677static void 1678input_csi_dispatch_rm_private(struct input_ctx *ictx) 1679{ 1680 struct screen_write_ctx *sctx = &ictx->ctx; 1681 struct grid_cell *gc = &ictx->cell.cell; 1682 u_int i; 1683 1684 for (i = 0; i < ictx->param_list_len; i++) { 1685 switch (input_get(ictx, i, 0, -1)) { 1686 case -1: 1687 break; 1688 case 1: /* DECCKM */ 1689 screen_write_mode_clear(sctx, MODE_KCURSOR); 1690 break; 1691 case 3: /* DECCOLM */ 1692 screen_write_cursormove(sctx, 0, 0, 1); 1693 screen_write_clearscreen(sctx, gc->bg); 1694 break; 1695 case 6: /* DECOM */ 1696 screen_write_mode_clear(sctx, MODE_ORIGIN); 1697 screen_write_cursormove(sctx, 0, 0, 1); 1698 break; 1699 case 7: /* DECAWM */ 1700 screen_write_mode_clear(sctx, MODE_WRAP); 1701 break; 1702 case 12: 1703 screen_write_mode_clear(sctx, MODE_CURSOR_BLINKING); 1704 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1705 break; 1706 case 25: /* TCEM */ 1707 screen_write_mode_clear(sctx, MODE_CURSOR); 1708 break; 1709 case 1000: 1710 case 1001: 1711 case 1002: 1712 case 1003: 1713 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1714 break; 1715 case 1004: 1716 screen_write_mode_clear(sctx, MODE_FOCUSON); 1717 break; 1718 case 1005: 1719 screen_write_mode_clear(sctx, MODE_MOUSE_UTF8); 1720 break; 1721 case 1006: 1722 screen_write_mode_clear(sctx, MODE_MOUSE_SGR); 1723 break; 1724 case 47: 1725 case 1047: 1726 screen_write_alternateoff(sctx, gc, 0); 1727 break; 1728 case 1049: 1729 screen_write_alternateoff(sctx, gc, 1); 1730 break; 1731 case 2004: 1732 screen_write_mode_clear(sctx, MODE_BRACKETPASTE); 1733 break; 1734 default: 1735 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1736 break; 1737 } 1738 } 1739} 1740 1741/* Handle CSI SM. */ 1742static void 1743input_csi_dispatch_sm(struct input_ctx *ictx) 1744{ 1745 struct screen_write_ctx *sctx = &ictx->ctx; 1746 u_int i; 1747 1748 for (i = 0; i < ictx->param_list_len; i++) { 1749 switch (input_get(ictx, i, 0, -1)) { 1750 case -1: 1751 break; 1752 case 4: /* IRM */ 1753 screen_write_mode_set(sctx, MODE_INSERT); 1754 break; 1755 case 34: 1756 screen_write_mode_clear(sctx, MODE_CURSOR_VERY_VISIBLE); 1757 break; 1758 default: 1759 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1760 break; 1761 } 1762 } 1763} 1764 1765/* Handle CSI private SM. */ 1766static void 1767input_csi_dispatch_sm_private(struct input_ctx *ictx) 1768{ 1769 struct screen_write_ctx *sctx = &ictx->ctx; 1770 struct grid_cell *gc = &ictx->cell.cell; 1771 u_int i; 1772 1773 for (i = 0; i < ictx->param_list_len; i++) { 1774 switch (input_get(ictx, i, 0, -1)) { 1775 case -1: 1776 break; 1777 case 1: /* DECCKM */ 1778 screen_write_mode_set(sctx, MODE_KCURSOR); 1779 break; 1780 case 3: /* DECCOLM */ 1781 screen_write_cursormove(sctx, 0, 0, 1); 1782 screen_write_clearscreen(sctx, ictx->cell.cell.bg); 1783 break; 1784 case 6: /* DECOM */ 1785 screen_write_mode_set(sctx, MODE_ORIGIN); 1786 screen_write_cursormove(sctx, 0, 0, 1); 1787 break; 1788 case 7: /* DECAWM */ 1789 screen_write_mode_set(sctx, MODE_WRAP); 1790 break; 1791 case 12: 1792 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING); 1793 screen_write_mode_set(sctx, MODE_CURSOR_BLINKING_SET); 1794 break; 1795 case 25: /* TCEM */ 1796 screen_write_mode_set(sctx, MODE_CURSOR); 1797 break; 1798 case 1000: 1799 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1800 screen_write_mode_set(sctx, MODE_MOUSE_STANDARD); 1801 break; 1802 case 1002: 1803 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1804 screen_write_mode_set(sctx, MODE_MOUSE_BUTTON); 1805 break; 1806 case 1003: 1807 screen_write_mode_clear(sctx, ALL_MOUSE_MODES); 1808 screen_write_mode_set(sctx, MODE_MOUSE_ALL); 1809 break; 1810 case 1004: 1811 screen_write_mode_set(sctx, MODE_FOCUSON); 1812 break; 1813 case 1005: 1814 screen_write_mode_set(sctx, MODE_MOUSE_UTF8); 1815 break; 1816 case 1006: 1817 screen_write_mode_set(sctx, MODE_MOUSE_SGR); 1818 break; 1819 case 47: 1820 case 1047: 1821 screen_write_alternateon(sctx, gc, 0); 1822 break; 1823 case 1049: 1824 screen_write_alternateon(sctx, gc, 1); 1825 break; 1826 case 2004: 1827 screen_write_mode_set(sctx, MODE_BRACKETPASTE); 1828 break; 1829 default: 1830 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1831 break; 1832 } 1833 } 1834} 1835 1836/* Handle CSI graphics SM. */ 1837static void 1838input_csi_dispatch_sm_graphics(__unused struct input_ctx *ictx) 1839{ 1840} 1841 1842/* Handle CSI window operations. */ 1843static void 1844input_csi_dispatch_winops(struct input_ctx *ictx) 1845{ 1846 struct screen_write_ctx *sctx = &ictx->ctx; 1847 struct screen *s = sctx->s; 1848 struct window_pane *wp = ictx->wp; 1849 struct window *w = NULL; 1850 u_int x = screen_size_x(s), y = screen_size_y(s); 1851 int n, m; 1852 1853 if (wp != NULL) 1854 w = wp->window; 1855 1856 m = 0; 1857 while ((n = input_get(ictx, m, 0, -1)) != -1) { 1858 switch (n) { 1859 case 1: 1860 case 2: 1861 case 5: 1862 case 6: 1863 case 7: 1864 case 11: 1865 case 13: 1866 case 20: 1867 case 21: 1868 case 24: 1869 break; 1870 case 3: 1871 case 4: 1872 case 8: 1873 m++; 1874 if (input_get(ictx, m, 0, -1) == -1) 1875 return; 1876 /* FALLTHROUGH */ 1877 case 9: 1878 case 10: 1879 m++; 1880 if (input_get(ictx, m, 0, -1) == -1) 1881 return; 1882 break; 1883 case 14: 1884 if (w == NULL) 1885 break; 1886 input_reply(ictx, "\033[4;%u;%ut", y * w->ypixel, 1887 x * w->xpixel); 1888 break; 1889 case 15: 1890 if (w == NULL) 1891 break; 1892 input_reply(ictx, "\033[5;%u;%ut", y * w->ypixel, 1893 x * w->xpixel); 1894 break; 1895 case 16: 1896 if (w == NULL) 1897 break; 1898 input_reply(ictx, "\033[6;%u;%ut", w->ypixel, 1899 w->xpixel); 1900 break; 1901 case 18: 1902 input_reply(ictx, "\033[8;%u;%ut", y, x); 1903 break; 1904 case 19: 1905 input_reply(ictx, "\033[9;%u;%ut", y, x); 1906 break; 1907 case 22: 1908 m++; 1909 switch (input_get(ictx, m, 0, -1)) { 1910 case -1: 1911 return; 1912 case 0: 1913 case 2: 1914 screen_push_title(sctx->s); 1915 break; 1916 } 1917 break; 1918 case 23: 1919 m++; 1920 switch (input_get(ictx, m, 0, -1)) { 1921 case -1: 1922 return; 1923 case 0: 1924 case 2: 1925 screen_pop_title(sctx->s); 1926 if (wp == NULL) 1927 break; 1928 notify_pane("pane-title-changed", wp); 1929 server_redraw_window_borders(w); 1930 server_status_window(w); 1931 break; 1932 } 1933 break; 1934 default: 1935 log_debug("%s: unknown '%c'", __func__, ictx->ch); 1936 break; 1937 } 1938 m++; 1939 } 1940} 1941 1942/* Helper for 256 colour SGR. */ 1943static int 1944input_csi_dispatch_sgr_256_do(struct input_ctx *ictx, int fgbg, int c) 1945{ 1946 struct grid_cell *gc = &ictx->cell.cell; 1947 1948 if (c == -1 || c > 255) { 1949 if (fgbg == 38) 1950 gc->fg = 8; 1951 else if (fgbg == 48) 1952 gc->bg = 8; 1953 } else { 1954 if (fgbg == 38) 1955 gc->fg = c | COLOUR_FLAG_256; 1956 else if (fgbg == 48) 1957 gc->bg = c | COLOUR_FLAG_256; 1958 else if (fgbg == 58) 1959 gc->us = c | COLOUR_FLAG_256; 1960 } 1961 return (1); 1962} 1963 1964/* Handle CSI SGR for 256 colours. */ 1965static void 1966input_csi_dispatch_sgr_256(struct input_ctx *ictx, int fgbg, u_int *i) 1967{ 1968 int c; 1969 1970 c = input_get(ictx, (*i) + 1, 0, -1); 1971 if (input_csi_dispatch_sgr_256_do(ictx, fgbg, c)) 1972 (*i)++; 1973} 1974 1975/* Helper for RGB colour SGR. */ 1976static int 1977input_csi_dispatch_sgr_rgb_do(struct input_ctx *ictx, int fgbg, int r, int g, 1978 int b) 1979{ 1980 struct grid_cell *gc = &ictx->cell.cell; 1981 1982 if (r == -1 || r > 255) 1983 return (0); 1984 if (g == -1 || g > 255) 1985 return (0); 1986 if (b == -1 || b > 255) 1987 return (0); 1988 1989 if (fgbg == 38) 1990 gc->fg = colour_join_rgb(r, g, b); 1991 else if (fgbg == 48) 1992 gc->bg = colour_join_rgb(r, g, b); 1993 else if (fgbg == 58) 1994 gc->us = colour_join_rgb(r, g, b); 1995 return (1); 1996} 1997 1998/* Handle CSI SGR for RGB colours. */ 1999static void 2000input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i) 2001{ 2002 int r, g, b; 2003 2004 r = input_get(ictx, (*i) + 1, 0, -1); 2005 g = input_get(ictx, (*i) + 2, 0, -1); 2006 b = input_get(ictx, (*i) + 3, 0, -1); 2007 if (input_csi_dispatch_sgr_rgb_do(ictx, fgbg, r, g, b)) 2008 (*i) += 3; 2009} 2010 2011/* Handle CSI SGR with a ISO parameter. */ 2012static void 2013input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i) 2014{ 2015 struct grid_cell *gc = &ictx->cell.cell; 2016 char *s = ictx->param_list[i].str, *copy, *ptr, *out; 2017 int p[8]; 2018 u_int n; 2019 const char *errstr; 2020 2021 for (n = 0; n < nitems(p); n++) 2022 p[n] = -1; 2023 n = 0; 2024 2025 ptr = copy = xstrdup(s); 2026 while ((out = strsep(&ptr, ":")) != NULL) { 2027 if (*out != '\0') { 2028 p[n++] = strtonum(out, 0, INT_MAX, &errstr); 2029 if (errstr != NULL || n == nitems(p)) { 2030 free(copy); 2031 return; 2032 } 2033 } else { 2034 n++; 2035 if (n == nitems(p)) { 2036 free(copy); 2037 return; 2038 } 2039 } 2040 log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]); 2041 } 2042 free(copy); 2043 2044 if (n == 0) 2045 return; 2046 if (p[0] == 4) { 2047 if (n != 2) 2048 return; 2049 switch (p[1]) { 2050 case 0: 2051 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2052 break; 2053 case 1: 2054 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2055 gc->attr |= GRID_ATTR_UNDERSCORE; 2056 break; 2057 case 2: 2058 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2059 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2060 break; 2061 case 3: 2062 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2063 gc->attr |= GRID_ATTR_UNDERSCORE_3; 2064 break; 2065 case 4: 2066 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2067 gc->attr |= GRID_ATTR_UNDERSCORE_4; 2068 break; 2069 case 5: 2070 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2071 gc->attr |= GRID_ATTR_UNDERSCORE_5; 2072 break; 2073 } 2074 return; 2075 } 2076 if (n < 2 || (p[0] != 38 && p[0] != 48 && p[0] != 58)) 2077 return; 2078 switch (p[1]) { 2079 case 2: 2080 if (n < 3) 2081 break; 2082 if (n == 5) 2083 i = 2; 2084 else 2085 i = 3; 2086 if (n < i + 3) 2087 break; 2088 input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i], p[i + 1], 2089 p[i + 2]); 2090 break; 2091 case 5: 2092 if (n < 3) 2093 break; 2094 input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]); 2095 break; 2096 } 2097} 2098 2099/* Handle CSI SGR. */ 2100static void 2101input_csi_dispatch_sgr(struct input_ctx *ictx) 2102{ 2103 struct grid_cell *gc = &ictx->cell.cell; 2104 u_int i, link; 2105 int n; 2106 2107 if (ictx->param_list_len == 0) { 2108 memcpy(gc, &grid_default_cell, sizeof *gc); 2109 return; 2110 } 2111 2112 for (i = 0; i < ictx->param_list_len; i++) { 2113 if (ictx->param_list[i].type == INPUT_STRING) { 2114 input_csi_dispatch_sgr_colon(ictx, i); 2115 continue; 2116 } 2117 n = input_get(ictx, i, 0, 0); 2118 if (n == -1) 2119 continue; 2120 2121 if (n == 38 || n == 48 || n == 58) { 2122 i++; 2123 switch (input_get(ictx, i, 0, -1)) { 2124 case 2: 2125 input_csi_dispatch_sgr_rgb(ictx, n, &i); 2126 break; 2127 case 5: 2128 input_csi_dispatch_sgr_256(ictx, n, &i); 2129 break; 2130 } 2131 continue; 2132 } 2133 2134 switch (n) { 2135 case 0: 2136 link = gc->link; 2137 memcpy(gc, &grid_default_cell, sizeof *gc); 2138 gc->link = link; 2139 break; 2140 case 1: 2141 gc->attr |= GRID_ATTR_BRIGHT; 2142 break; 2143 case 2: 2144 gc->attr |= GRID_ATTR_DIM; 2145 break; 2146 case 3: 2147 gc->attr |= GRID_ATTR_ITALICS; 2148 break; 2149 case 4: 2150 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2151 gc->attr |= GRID_ATTR_UNDERSCORE; 2152 break; 2153 case 5: 2154 case 6: 2155 gc->attr |= GRID_ATTR_BLINK; 2156 break; 2157 case 7: 2158 gc->attr |= GRID_ATTR_REVERSE; 2159 break; 2160 case 8: 2161 gc->attr |= GRID_ATTR_HIDDEN; 2162 break; 2163 case 9: 2164 gc->attr |= GRID_ATTR_STRIKETHROUGH; 2165 break; 2166 case 21: 2167 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2168 gc->attr |= GRID_ATTR_UNDERSCORE_2; 2169 break; 2170 case 22: 2171 gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM); 2172 break; 2173 case 23: 2174 gc->attr &= ~GRID_ATTR_ITALICS; 2175 break; 2176 case 24: 2177 gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE; 2178 break; 2179 case 25: 2180 gc->attr &= ~GRID_ATTR_BLINK; 2181 break; 2182 case 27: 2183 gc->attr &= ~GRID_ATTR_REVERSE; 2184 break; 2185 case 28: 2186 gc->attr &= ~GRID_ATTR_HIDDEN; 2187 break; 2188 case 29: 2189 gc->attr &= ~GRID_ATTR_STRIKETHROUGH; 2190 break; 2191 case 30: 2192 case 31: 2193 case 32: 2194 case 33: 2195 case 34: 2196 case 35: 2197 case 36: 2198 case 37: 2199 gc->fg = n - 30; 2200 break; 2201 case 39: 2202 gc->fg = 8; 2203 break; 2204 case 40: 2205 case 41: 2206 case 42: 2207 case 43: 2208 case 44: 2209 case 45: 2210 case 46: 2211 case 47: 2212 gc->bg = n - 40; 2213 break; 2214 case 49: 2215 gc->bg = 8; 2216 break; 2217 case 53: 2218 gc->attr |= GRID_ATTR_OVERLINE; 2219 break; 2220 case 55: 2221 gc->attr &= ~GRID_ATTR_OVERLINE; 2222 break; 2223 case 59: 2224 gc->us = 8; 2225 break; 2226 case 90: 2227 case 91: 2228 case 92: 2229 case 93: 2230 case 94: 2231 case 95: 2232 case 96: 2233 case 97: 2234 gc->fg = n; 2235 break; 2236 case 100: 2237 case 101: 2238 case 102: 2239 case 103: 2240 case 104: 2241 case 105: 2242 case 106: 2243 case 107: 2244 gc->bg = n - 10; 2245 break; 2246 } 2247 } 2248} 2249 2250/* End of input with BEL. */ 2251static int 2252input_end_bel(struct input_ctx *ictx) 2253{ 2254 log_debug("%s", __func__); 2255 2256 ictx->input_end = INPUT_END_BEL; 2257 2258 return (0); 2259} 2260 2261/* DCS string started. */ 2262static void 2263input_enter_dcs(struct input_ctx *ictx) 2264{ 2265 log_debug("%s", __func__); 2266 2267 input_clear(ictx); 2268 input_start_timer(ictx); 2269 ictx->last = -1; 2270} 2271 2272/* DCS terminator (ST) received. */ 2273static int 2274input_dcs_dispatch(struct input_ctx *ictx) 2275{ 2276 struct window_pane *wp = ictx->wp; 2277 struct screen_write_ctx *sctx = &ictx->ctx; 2278 u_char *buf = ictx->input_buf; 2279 size_t len = ictx->input_len; 2280 const char prefix[] = "tmux;"; 2281 const u_int prefixlen = (sizeof prefix) - 1; 2282 long long allow_passthrough = 0; 2283 2284 if (wp == NULL) 2285 return (0); 2286 if (ictx->flags & INPUT_DISCARD) { 2287 log_debug("%s: %zu bytes (discard)", __func__, len); 2288 return (0); 2289 } 2290 log_debug("%s: %zu bytes", __func__, len); 2291 2292 allow_passthrough = options_get_number(wp->options, "allow-passthrough"); 2293 if (!allow_passthrough) 2294 return (0); 2295 log_debug("%s: \"%s\"", __func__, buf); 2296 2297 if (len >= prefixlen && strncmp(buf, prefix, prefixlen) == 0) { 2298 screen_write_rawstring(sctx, buf + prefixlen, len - prefixlen, 2299 allow_passthrough == 2); 2300 } 2301 2302 return (0); 2303} 2304 2305/* OSC string started. */ 2306static void 2307input_enter_osc(struct input_ctx *ictx) 2308{ 2309 log_debug("%s", __func__); 2310 2311 input_clear(ictx); 2312 input_start_timer(ictx); 2313 ictx->last = -1; 2314} 2315 2316/* OSC terminator (ST) received. */ 2317static void 2318input_exit_osc(struct input_ctx *ictx) 2319{ 2320 struct screen_write_ctx *sctx = &ictx->ctx; 2321 struct window_pane *wp = ictx->wp; 2322 u_char *p = ictx->input_buf; 2323 u_int option; 2324 2325 if (ictx->flags & INPUT_DISCARD) 2326 return; 2327 if (ictx->input_len < 1 || *p < '0' || *p > '9') 2328 return; 2329 2330 log_debug("%s: \"%s\" (end %s)", __func__, p, 2331 ictx->input_end == INPUT_END_ST ? "ST" : "BEL"); 2332 2333 option = 0; 2334 while (*p >= '0' && *p <= '9') 2335 option = option * 10 + *p++ - '0'; 2336 if (*p != ';' && *p != '\0') 2337 return; 2338 if (*p == ';') 2339 p++; 2340 2341 switch (option) { 2342 case 0: 2343 case 2: 2344 if (screen_set_title(sctx->s, p) && wp != NULL) { 2345 notify_pane("pane-title-changed", wp); 2346 server_redraw_window_borders(wp->window); 2347 server_status_window(wp->window); 2348 } 2349 break; 2350 case 4: 2351 input_osc_4(ictx, p); 2352 break; 2353 case 7: 2354 if (utf8_isvalid(p)) { 2355 screen_set_path(sctx->s, p); 2356 if (wp != NULL) { 2357 server_redraw_window_borders(wp->window); 2358 server_status_window(wp->window); 2359 } 2360 } 2361 break; 2362 case 8: 2363 input_osc_8(ictx, p); 2364 break; 2365 case 10: 2366 input_osc_10(ictx, p); 2367 break; 2368 case 11: 2369 input_osc_11(ictx, p); 2370 break; 2371 case 12: 2372 input_osc_12(ictx, p); 2373 break; 2374 case 52: 2375 input_osc_52(ictx, p); 2376 break; 2377 case 104: 2378 input_osc_104(ictx, p); 2379 break; 2380 case 110: 2381 input_osc_110(ictx, p); 2382 break; 2383 case 111: 2384 input_osc_111(ictx, p); 2385 break; 2386 case 112: 2387 input_osc_112(ictx, p); 2388 break; 2389 case 133: 2390 input_osc_133(ictx, p); 2391 break; 2392 default: 2393 log_debug("%s: unknown '%u'", __func__, option); 2394 break; 2395 } 2396} 2397 2398/* APC string started. */ 2399static void 2400input_enter_apc(struct input_ctx *ictx) 2401{ 2402 log_debug("%s", __func__); 2403 2404 input_clear(ictx); 2405 input_start_timer(ictx); 2406 ictx->last = -1; 2407} 2408 2409/* APC terminator (ST) received. */ 2410static void 2411input_exit_apc(struct input_ctx *ictx) 2412{ 2413 struct screen_write_ctx *sctx = &ictx->ctx; 2414 struct window_pane *wp = ictx->wp; 2415 2416 if (ictx->flags & INPUT_DISCARD) 2417 return; 2418 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2419 2420 if (screen_set_title(sctx->s, ictx->input_buf) && wp != NULL) { 2421 notify_pane("pane-title-changed", wp); 2422 server_redraw_window_borders(wp->window); 2423 server_status_window(wp->window); 2424 } 2425} 2426 2427/* Rename string started. */ 2428static void 2429input_enter_rename(struct input_ctx *ictx) 2430{ 2431 log_debug("%s", __func__); 2432 2433 input_clear(ictx); 2434 input_start_timer(ictx); 2435 ictx->last = -1; 2436} 2437 2438/* Rename terminator (ST) received. */ 2439static void 2440input_exit_rename(struct input_ctx *ictx) 2441{ 2442 struct window_pane *wp = ictx->wp; 2443 struct window *w; 2444 struct options_entry *o; 2445 2446 if (wp == NULL) 2447 return; 2448 if (ictx->flags & INPUT_DISCARD) 2449 return; 2450 if (!options_get_number(ictx->wp->options, "allow-rename")) 2451 return; 2452 log_debug("%s: \"%s\"", __func__, ictx->input_buf); 2453 2454 if (!utf8_isvalid(ictx->input_buf)) 2455 return; 2456 w = wp->window; 2457 2458 if (ictx->input_len == 0) { 2459 o = options_get_only(w->options, "automatic-rename"); 2460 if (o != NULL) 2461 options_remove_or_default(o, -1, NULL); 2462 if (!options_get_number(w->options, "automatic-rename")) 2463 window_set_name(w, ""); 2464 } else { 2465 options_set_number(w->options, "automatic-rename", 0); 2466 window_set_name(w, ictx->input_buf); 2467 } 2468 server_redraw_window_borders(w); 2469 server_status_window(w); 2470} 2471 2472/* Open UTF-8 character. */ 2473static int 2474input_top_bit_set(struct input_ctx *ictx) 2475{ 2476 struct screen_write_ctx *sctx = &ictx->ctx; 2477 struct utf8_data *ud = &ictx->utf8data; 2478 2479 ictx->last = -1; 2480 2481 if (!ictx->utf8started) { 2482 if (utf8_open(ud, ictx->ch) != UTF8_MORE) 2483 return (0); 2484 ictx->utf8started = 1; 2485 return (0); 2486 } 2487 2488 switch (utf8_append(ud, ictx->ch)) { 2489 case UTF8_MORE: 2490 return (0); 2491 case UTF8_ERROR: 2492 ictx->utf8started = 0; 2493 return (0); 2494 case UTF8_DONE: 2495 break; 2496 } 2497 ictx->utf8started = 0; 2498 2499 log_debug("%s %hhu '%*s' (width %hhu)", __func__, ud->size, 2500 (int)ud->size, ud->data, ud->width); 2501 2502 utf8_copy(&ictx->cell.cell.data, ud); 2503 screen_write_collect_add(sctx, &ictx->cell.cell); 2504 2505 return (0); 2506} 2507 2508/* Reply to a colour request. */ 2509static void 2510input_osc_colour_reply(struct input_ctx *ictx, u_int n, int c) 2511{ 2512 u_char r, g, b; 2513 const char *end; 2514 2515 if (c != -1) 2516 c = colour_force_rgb(c); 2517 if (c == -1) 2518 return; 2519 colour_split_rgb(c, &r, &g, &b); 2520 2521 if (ictx->input_end == INPUT_END_BEL) 2522 end = "\007"; 2523 else 2524 end = "\033\\"; 2525 input_reply(ictx, "\033]%u;rgb:%02hhx%02hhx/%02hhx%02hhx/%02hhx%02hhx%s", 2526 n, r, r, g, g, b, b, end); 2527} 2528 2529/* Handle the OSC 4 sequence for setting (multiple) palette entries. */ 2530static void 2531input_osc_4(struct input_ctx *ictx, const char *p) 2532{ 2533 char *copy, *s, *next = NULL; 2534 long idx; 2535 int c, bad = 0, redraw = 0; 2536 2537 copy = s = xstrdup(p); 2538 while (s != NULL && *s != '\0') { 2539 idx = strtol(s, &next, 10); 2540 if (*next++ != ';') { 2541 bad = 1; 2542 break; 2543 } 2544 if (idx < 0 || idx >= 256) { 2545 bad = 1; 2546 break; 2547 } 2548 2549 s = strsep(&next, ";"); 2550 if (strcmp(s, "?") == 0) { 2551 c = colour_palette_get(ictx->palette, idx); 2552 if (c != -1) 2553 input_osc_colour_reply(ictx, 4, c); 2554 continue; 2555 } 2556 if ((c = colour_parseX11(s)) == -1) { 2557 s = next; 2558 continue; 2559 } 2560 if (colour_palette_set(ictx->palette, idx, c)) 2561 redraw = 1; 2562 s = next; 2563 } 2564 if (bad) 2565 log_debug("bad OSC 4: %s", p); 2566 if (redraw) 2567 screen_write_fullredraw(&ictx->ctx); 2568 free(copy); 2569} 2570 2571/* Handle the OSC 8 sequence for embedding hyperlinks. */ 2572static void 2573input_osc_8(struct input_ctx *ictx, const char *p) 2574{ 2575 struct hyperlinks *hl = ictx->ctx.s->hyperlinks; 2576 struct grid_cell *gc = &ictx->cell.cell; 2577 const char *start, *end, *uri; 2578 char *id = NULL; 2579 2580 for (start = p; (end = strpbrk(start, ":;")) != NULL; start = end + 1) { 2581 if (end - start >= 4 && strncmp(start, "id=", 3) == 0) { 2582 if (id != NULL) 2583 goto bad; 2584 id = xstrndup(start + 3, end - start - 3); 2585 } 2586 2587 /* The first ; is the end of parameters and start of the URI. */ 2588 if (*end == ';') 2589 break; 2590 } 2591 if (end == NULL || *end != ';') 2592 goto bad; 2593 uri = end + 1; 2594 if (*uri == '\0') { 2595 gc->link = 0; 2596 free(id); 2597 return; 2598 } 2599 gc->link = hyperlinks_put(hl, uri, id); 2600 if (id == NULL) 2601 log_debug("hyperlink (anonymous) %s = %u", uri, gc->link); 2602 else 2603 log_debug("hyperlink (id=%s) %s = %u", id, uri, gc->link); 2604 free(id); 2605 return; 2606 2607bad: 2608 log_debug("bad OSC 8 %s", p); 2609 free(id); 2610} 2611 2612/* 2613 * Get a client with a foreground for the pane. There isn't much to choose 2614 * between them so just use the first. 2615 */ 2616static int 2617input_get_fg_client(struct window_pane *wp) 2618{ 2619 struct window *w = wp->window; 2620 struct client *loop; 2621 2622 TAILQ_FOREACH(loop, &clients, entry) { 2623 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2624 continue; 2625 if (loop->session == NULL || !session_has(loop->session, w)) 2626 continue; 2627 if (loop->tty.fg == -1) 2628 continue; 2629 return (loop->tty.fg); 2630 } 2631 return (-1); 2632} 2633 2634/* Get a client with a background for the pane. */ 2635static int 2636input_get_bg_client(struct window_pane *wp) 2637{ 2638 struct window *w = wp->window; 2639 struct client *loop; 2640 2641 TAILQ_FOREACH(loop, &clients, entry) { 2642 if (loop->flags & CLIENT_UNATTACHEDFLAGS) 2643 continue; 2644 if (loop->session == NULL || !session_has(loop->session, w)) 2645 continue; 2646 if (loop->tty.bg == -1) 2647 continue; 2648 return (loop->tty.bg); 2649 } 2650 return (-1); 2651} 2652 2653/* Handle the OSC 10 sequence for setting and querying foreground colour. */ 2654static void 2655input_osc_10(struct input_ctx *ictx, const char *p) 2656{ 2657 struct window_pane *wp = ictx->wp; 2658 struct grid_cell defaults; 2659 int c; 2660 2661 if (strcmp(p, "?") == 0) { 2662 if (wp == NULL) 2663 return; 2664 tty_default_colours(&defaults, wp); 2665 if (COLOUR_DEFAULT(defaults.fg)) 2666 c = input_get_fg_client(wp); 2667 else 2668 c = defaults.fg; 2669 input_osc_colour_reply(ictx, 10, c); 2670 return; 2671 } 2672 2673 if ((c = colour_parseX11(p)) == -1) { 2674 log_debug("bad OSC 10: %s", p); 2675 return; 2676 } 2677 if (ictx->palette != NULL) { 2678 ictx->palette->fg = c; 2679 if (wp != NULL) 2680 wp->flags |= PANE_STYLECHANGED; 2681 screen_write_fullredraw(&ictx->ctx); 2682 } 2683} 2684 2685/* Handle the OSC 110 sequence for resetting foreground colour. */ 2686static void 2687input_osc_110(struct input_ctx *ictx, const char *p) 2688{ 2689 struct window_pane *wp = ictx->wp; 2690 2691 if (*p != '\0') 2692 return; 2693 if (ictx->palette != NULL) { 2694 ictx->palette->fg = 8; 2695 if (wp != NULL) 2696 wp->flags |= PANE_STYLECHANGED; 2697 screen_write_fullredraw(&ictx->ctx); 2698 } 2699} 2700 2701/* Handle the OSC 11 sequence for setting and querying background colour. */ 2702static void 2703input_osc_11(struct input_ctx *ictx, const char *p) 2704{ 2705 struct window_pane *wp = ictx->wp; 2706 struct grid_cell defaults; 2707 int c; 2708 2709 if (strcmp(p, "?") == 0) { 2710 if (wp == NULL) 2711 return; 2712 tty_default_colours(&defaults, wp); 2713 if (COLOUR_DEFAULT(defaults.bg)) 2714 c = input_get_bg_client(wp); 2715 else 2716 c = defaults.bg; 2717 input_osc_colour_reply(ictx, 11, c); 2718 return; 2719 } 2720 2721 if ((c = colour_parseX11(p)) == -1) { 2722 log_debug("bad OSC 11: %s", p); 2723 return; 2724 } 2725 if (ictx->palette != NULL) { 2726 ictx->palette->bg = c; 2727 if (wp != NULL) 2728 wp->flags |= PANE_STYLECHANGED; 2729 screen_write_fullredraw(&ictx->ctx); 2730 } 2731} 2732 2733/* Handle the OSC 111 sequence for resetting background colour. */ 2734static void 2735input_osc_111(struct input_ctx *ictx, const char *p) 2736{ 2737 struct window_pane *wp = ictx->wp; 2738 2739 if (*p != '\0') 2740 return; 2741 if (ictx->palette != NULL) { 2742 ictx->palette->bg = 8; 2743 if (wp != NULL) 2744 wp->flags |= PANE_STYLECHANGED; 2745 screen_write_fullredraw(&ictx->ctx); 2746 } 2747} 2748 2749/* Handle the OSC 12 sequence for setting and querying cursor colour. */ 2750static void 2751input_osc_12(struct input_ctx *ictx, const char *p) 2752{ 2753 struct window_pane *wp = ictx->wp; 2754 int c; 2755 2756 if (strcmp(p, "?") == 0) { 2757 if (wp != NULL) { 2758 c = ictx->ctx.s->ccolour; 2759 if (c == -1) 2760 c = ictx->ctx.s->default_ccolour; 2761 input_osc_colour_reply(ictx, 12, c); 2762 } 2763 return; 2764 } 2765 2766 if ((c = colour_parseX11(p)) == -1) { 2767 log_debug("bad OSC 12: %s", p); 2768 return; 2769 } 2770 screen_set_cursor_colour(ictx->ctx.s, c); 2771} 2772 2773/* Handle the OSC 112 sequence for resetting cursor colour. */ 2774static void 2775input_osc_112(struct input_ctx *ictx, const char *p) 2776{ 2777 if (*p == '\0') /* no arguments allowed */ 2778 screen_set_cursor_colour(ictx->ctx.s, -1); 2779} 2780 2781/* Handle the OSC 133 sequence. */ 2782static void 2783input_osc_133(struct input_ctx *ictx, const char *p) 2784{ 2785 struct grid *gd = ictx->ctx.s->grid; 2786 u_int line = ictx->ctx.s->cy + gd->hsize; 2787 struct grid_line *gl; 2788 2789 if (line > gd->hsize + gd->sy - 1) 2790 return; 2791 gl = grid_get_line(gd, line); 2792 2793 switch (*p) { 2794 case 'A': 2795 gl->flags |= GRID_LINE_START_PROMPT; 2796 break; 2797 case 'C': 2798 gl->flags |= GRID_LINE_START_OUTPUT; 2799 break; 2800 } 2801} 2802 2803/* Handle the OSC 52 sequence for setting the clipboard. */ 2804static void 2805input_osc_52(struct input_ctx *ictx, const char *p) 2806{ 2807 struct window_pane *wp = ictx->wp; 2808 char *end; 2809 const char *buf = NULL; 2810 size_t len = 0; 2811 u_char *out; 2812 int outlen, state; 2813 struct screen_write_ctx ctx; 2814 struct paste_buffer *pb; 2815 const char* allow = "cpqs01234567"; 2816 char flags[sizeof "cpqs01234567"] = ""; 2817 u_int i, j = 0; 2818 2819 if (wp == NULL) 2820 return; 2821 state = options_get_number(global_options, "set-clipboard"); 2822 if (state != 2) 2823 return; 2824 2825 if ((end = strchr(p, ';')) == NULL) 2826 return; 2827 end++; 2828 if (*end == '\0') 2829 return; 2830 log_debug("%s: %s", __func__, end); 2831 2832 for (i = 0; p + i != end; i++) { 2833 if (strchr(allow, p[i]) != NULL && strchr(flags, p[i]) == NULL) 2834 flags[j++] = p[i]; 2835 } 2836 log_debug("%s: %.*s %s", __func__, (int)(end - p - 1), p, flags); 2837 2838 if (strcmp(end, "?") == 0) { 2839 if ((pb = paste_get_top(NULL)) != NULL) 2840 buf = paste_buffer_data(pb, &len); 2841 if (ictx->input_end == INPUT_END_BEL) 2842 input_reply_clipboard(ictx->event, buf, len, "\007"); 2843 else 2844 input_reply_clipboard(ictx->event, buf, len, "\033\\"); 2845 return; 2846 } 2847 2848 len = (strlen(end) / 4) * 3; 2849 if (len == 0) 2850 return; 2851 2852 out = xmalloc(len); 2853 if ((outlen = b64_pton(end, out, len)) == -1) { 2854 free(out); 2855 return; 2856 } 2857 2858 screen_write_start_pane(&ctx, wp, NULL); 2859 screen_write_setselection(&ctx, flags, out, outlen); 2860 screen_write_stop(&ctx); 2861 notify_pane("pane-set-clipboard", wp); 2862 2863 paste_add(NULL, out, outlen); 2864} 2865 2866/* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */ 2867static void 2868input_osc_104(struct input_ctx *ictx, const char *p) 2869{ 2870 char *copy, *s; 2871 long idx; 2872 int bad = 0, redraw = 0; 2873 2874 if (*p == '\0') { 2875 colour_palette_clear(ictx->palette); 2876 screen_write_fullredraw(&ictx->ctx); 2877 return; 2878 } 2879 2880 copy = s = xstrdup(p); 2881 while (*s != '\0') { 2882 idx = strtol(s, &s, 10); 2883 if (*s != '\0' && *s != ';') { 2884 bad = 1; 2885 break; 2886 } 2887 if (idx < 0 || idx >= 256) { 2888 bad = 1; 2889 break; 2890 } 2891 if (colour_palette_set(ictx->palette, idx, -1)) 2892 redraw = 1; 2893 if (*s == ';') 2894 s++; 2895 } 2896 if (bad) 2897 log_debug("bad OSC 104: %s", p); 2898 if (redraw) 2899 screen_write_fullredraw(&ictx->ctx); 2900 free(copy); 2901} 2902 2903void 2904input_reply_clipboard(struct bufferevent *bev, const char *buf, size_t len, 2905 const char *end) 2906{ 2907 char *out = NULL; 2908 int outlen = 0; 2909 2910 if (buf != NULL && len != 0) { 2911 if (len >= ((size_t)INT_MAX * 3 / 4) - 1) 2912 return; 2913 outlen = 4 * ((len + 2) / 3) + 1; 2914 out = xmalloc(outlen); 2915 if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) { 2916 free(out); 2917 return; 2918 } 2919 } 2920 2921 bufferevent_write(bev, "\033]52;;", 6); 2922 if (outlen != 0) 2923 bufferevent_write(bev, out, outlen); 2924 bufferevent_write(bev, end, strlen(end)); 2925 free(out); 2926} 2927