tty-keys.c revision 1.16
1/* $OpenBSD$ */ 2 3/* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#include <sys/types.h> 20#include <sys/time.h> 21 22#include <netinet/in.h> 23 24#include <ctype.h> 25#include <limits.h> 26#include <resolv.h> 27#include <stdlib.h> 28#include <string.h> 29#include <termios.h> 30#include <unistd.h> 31 32#include "tmux.h" 33 34/* 35 * Handle keys input from the outside terminal. tty_default_*_keys[] are a base 36 * table of supported keys which are looked up in terminfo(5) and translated 37 * into a ternary tree. 38 */ 39 40static void tty_keys_add1(struct tty_key **, const char *, key_code); 41static void tty_keys_add(struct tty *, const char *, key_code); 42static void tty_keys_free1(struct tty_key *); 43static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t, 44 size_t *); 45static struct tty_key *tty_keys_find(struct tty *, const char *, size_t, 46 size_t *); 47static int tty_keys_next1(struct tty *, const char *, size_t, key_code *, 48 size_t *, int); 49static void tty_keys_callback(int, short, void *); 50static int tty_keys_extended_key(struct tty *, const char *, size_t, 51 size_t *, key_code *); 52static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *, 53 struct mouse_event *); 54static int tty_keys_clipboard(struct tty *, const char *, size_t, 55 size_t *); 56static int tty_keys_device_attributes(struct tty *, const char *, size_t, 57 size_t *); 58static int tty_keys_extended_device_attributes(struct tty *, const char *, 59 size_t, size_t *); 60 61/* Default raw keys. */ 62struct tty_default_key_raw { 63 const char *string; 64 key_code key; 65}; 66static const struct tty_default_key_raw tty_default_raw_keys[] = { 67 /* Application escape. */ 68 { "\033O[", '\033' }, 69 70 /* 71 * Numeric keypad. Just use the vt100 escape sequences here and always 72 * put the terminal into keypad_xmit mode. Translation of numbers 73 * mode/applications mode is done in input-keys.c. 74 */ 75 { "\033Oo", KEYC_KP_SLASH|KEYC_KEYPAD }, 76 { "\033Oj", KEYC_KP_STAR|KEYC_KEYPAD }, 77 { "\033Om", KEYC_KP_MINUS|KEYC_KEYPAD }, 78 { "\033Ow", KEYC_KP_SEVEN|KEYC_KEYPAD }, 79 { "\033Ox", KEYC_KP_EIGHT|KEYC_KEYPAD }, 80 { "\033Oy", KEYC_KP_NINE|KEYC_KEYPAD }, 81 { "\033Ok", KEYC_KP_PLUS|KEYC_KEYPAD }, 82 { "\033Ot", KEYC_KP_FOUR|KEYC_KEYPAD }, 83 { "\033Ou", KEYC_KP_FIVE|KEYC_KEYPAD }, 84 { "\033Ov", KEYC_KP_SIX|KEYC_KEYPAD }, 85 { "\033Oq", KEYC_KP_ONE|KEYC_KEYPAD }, 86 { "\033Or", KEYC_KP_TWO|KEYC_KEYPAD }, 87 { "\033Os", KEYC_KP_THREE|KEYC_KEYPAD }, 88 { "\033OM", KEYC_KP_ENTER|KEYC_KEYPAD }, 89 { "\033Op", KEYC_KP_ZERO|KEYC_KEYPAD }, 90 { "\033On", KEYC_KP_PERIOD|KEYC_KEYPAD }, 91 92 /* Arrow keys. */ 93 { "\033OA", KEYC_UP|KEYC_CURSOR }, 94 { "\033OB", KEYC_DOWN|KEYC_CURSOR }, 95 { "\033OC", KEYC_RIGHT|KEYC_CURSOR }, 96 { "\033OD", KEYC_LEFT|KEYC_CURSOR }, 97 98 { "\033[A", KEYC_UP|KEYC_CURSOR }, 99 { "\033[B", KEYC_DOWN|KEYC_CURSOR }, 100 { "\033[C", KEYC_RIGHT|KEYC_CURSOR }, 101 { "\033[D", KEYC_LEFT|KEYC_CURSOR }, 102 103 /* 104 * Meta arrow keys. These do not get the IMPLIED_META flag so they 105 * don't match the xterm-style meta keys in the output tree - Escape+Up 106 * should stay as Escape+Up and not become M-Up. 107 */ 108 { "\033\033OA", KEYC_UP|KEYC_CURSOR|KEYC_META }, 109 { "\033\033OB", KEYC_DOWN|KEYC_CURSOR|KEYC_META }, 110 { "\033\033OC", KEYC_RIGHT|KEYC_CURSOR|KEYC_META }, 111 { "\033\033OD", KEYC_LEFT|KEYC_CURSOR|KEYC_META }, 112 113 { "\033\033[A", KEYC_UP|KEYC_CURSOR|KEYC_META }, 114 { "\033\033[B", KEYC_DOWN|KEYC_CURSOR|KEYC_META }, 115 { "\033\033[C", KEYC_RIGHT|KEYC_CURSOR|KEYC_META }, 116 { "\033\033[D", KEYC_LEFT|KEYC_CURSOR|KEYC_META }, 117 118 /* Other (xterm) "cursor" keys. */ 119 { "\033OH", KEYC_HOME }, 120 { "\033OF", KEYC_END }, 121 122 { "\033\033OH", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, 123 { "\033\033OF", KEYC_END|KEYC_META|KEYC_IMPLIED_META }, 124 125 { "\033[H", KEYC_HOME }, 126 { "\033[F", KEYC_END }, 127 128 { "\033\033[H", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, 129 { "\033\033[F", KEYC_END|KEYC_META|KEYC_IMPLIED_META }, 130 131 /* rxvt-style arrow + modifier keys. */ 132 { "\033Oa", KEYC_UP|KEYC_CTRL }, 133 { "\033Ob", KEYC_DOWN|KEYC_CTRL }, 134 { "\033Oc", KEYC_RIGHT|KEYC_CTRL }, 135 { "\033Od", KEYC_LEFT|KEYC_CTRL }, 136 137 { "\033[a", KEYC_UP|KEYC_SHIFT }, 138 { "\033[b", KEYC_DOWN|KEYC_SHIFT }, 139 { "\033[c", KEYC_RIGHT|KEYC_SHIFT }, 140 { "\033[d", KEYC_LEFT|KEYC_SHIFT }, 141 142 /* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */ 143 { "\033[11^", KEYC_F1|KEYC_CTRL }, 144 { "\033[12^", KEYC_F2|KEYC_CTRL }, 145 { "\033[13^", KEYC_F3|KEYC_CTRL }, 146 { "\033[14^", KEYC_F4|KEYC_CTRL }, 147 { "\033[15^", KEYC_F5|KEYC_CTRL }, 148 { "\033[17^", KEYC_F6|KEYC_CTRL }, 149 { "\033[18^", KEYC_F7|KEYC_CTRL }, 150 { "\033[19^", KEYC_F8|KEYC_CTRL }, 151 { "\033[20^", KEYC_F9|KEYC_CTRL }, 152 { "\033[21^", KEYC_F10|KEYC_CTRL }, 153 { "\033[23^", KEYC_F11|KEYC_CTRL }, 154 { "\033[24^", KEYC_F12|KEYC_CTRL }, 155 { "\033[2^", KEYC_IC|KEYC_CTRL }, 156 { "\033[3^", KEYC_DC|KEYC_CTRL }, 157 { "\033[7^", KEYC_HOME|KEYC_CTRL }, 158 { "\033[8^", KEYC_END|KEYC_CTRL }, 159 { "\033[6^", KEYC_NPAGE|KEYC_CTRL }, 160 { "\033[5^", KEYC_PPAGE|KEYC_CTRL }, 161 162 { "\033[11$", KEYC_F1|KEYC_SHIFT }, 163 { "\033[12$", KEYC_F2|KEYC_SHIFT }, 164 { "\033[13$", KEYC_F3|KEYC_SHIFT }, 165 { "\033[14$", KEYC_F4|KEYC_SHIFT }, 166 { "\033[15$", KEYC_F5|KEYC_SHIFT }, 167 { "\033[17$", KEYC_F6|KEYC_SHIFT }, 168 { "\033[18$", KEYC_F7|KEYC_SHIFT }, 169 { "\033[19$", KEYC_F8|KEYC_SHIFT }, 170 { "\033[20$", KEYC_F9|KEYC_SHIFT }, 171 { "\033[21$", KEYC_F10|KEYC_SHIFT }, 172 { "\033[23$", KEYC_F11|KEYC_SHIFT }, 173 { "\033[24$", KEYC_F12|KEYC_SHIFT }, 174 { "\033[2$", KEYC_IC|KEYC_SHIFT }, 175 { "\033[3$", KEYC_DC|KEYC_SHIFT }, 176 { "\033[7$", KEYC_HOME|KEYC_SHIFT }, 177 { "\033[8$", KEYC_END|KEYC_SHIFT }, 178 { "\033[6$", KEYC_NPAGE|KEYC_SHIFT }, 179 { "\033[5$", KEYC_PPAGE|KEYC_SHIFT }, 180 181 { "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT }, 182 { "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT }, 183 { "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT }, 184 { "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT }, 185 { "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT }, 186 { "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT }, 187 { "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT }, 188 { "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT }, 189 { "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT }, 190 { "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT }, 191 { "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT }, 192 { "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT }, 193 { "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT }, 194 { "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT }, 195 { "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT }, 196 { "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT }, 197 { "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT }, 198 { "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT }, 199 200 /* Focus tracking. */ 201 { "\033[I", KEYC_FOCUS_IN }, 202 { "\033[O", KEYC_FOCUS_OUT }, 203 204 /* Paste keys. */ 205 { "\033[200~", KEYC_PASTE_START }, 206 { "\033[201~", KEYC_PASTE_END }, 207}; 208 209/* Default xterm keys. */ 210struct tty_default_key_xterm { 211 const char *template; 212 key_code key; 213}; 214static const struct tty_default_key_xterm tty_default_xterm_keys[] = { 215 { "\033[1;_P", KEYC_F1 }, 216 { "\033O1;_P", KEYC_F1 }, 217 { "\033O_P", KEYC_F1 }, 218 { "\033[1;_Q", KEYC_F2 }, 219 { "\033O1;_Q", KEYC_F2 }, 220 { "\033O_Q", KEYC_F2 }, 221 { "\033[1;_R", KEYC_F3 }, 222 { "\033O1;_R", KEYC_F3 }, 223 { "\033O_R", KEYC_F3 }, 224 { "\033[1;_S", KEYC_F4 }, 225 { "\033O1;_S", KEYC_F4 }, 226 { "\033O_S", KEYC_F4 }, 227 { "\033[15;_~", KEYC_F5 }, 228 { "\033[17;_~", KEYC_F6 }, 229 { "\033[18;_~", KEYC_F7 }, 230 { "\033[19;_~", KEYC_F8 }, 231 { "\033[20;_~", KEYC_F9 }, 232 { "\033[21;_~", KEYC_F10 }, 233 { "\033[23;_~", KEYC_F11 }, 234 { "\033[24;_~", KEYC_F12 }, 235 { "\033[1;_A", KEYC_UP }, 236 { "\033[1;_B", KEYC_DOWN }, 237 { "\033[1;_C", KEYC_RIGHT }, 238 { "\033[1;_D", KEYC_LEFT }, 239 { "\033[1;_H", KEYC_HOME }, 240 { "\033[1;_F", KEYC_END }, 241 { "\033[5;_~", KEYC_PPAGE }, 242 { "\033[6;_~", KEYC_NPAGE }, 243 { "\033[2;_~", KEYC_IC }, 244 { "\033[3;_~", KEYC_DC }, 245}; 246static const key_code tty_default_xterm_modifiers[] = { 247 0, 248 0, 249 KEYC_SHIFT, 250 KEYC_META|KEYC_IMPLIED_META, 251 KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META, 252 KEYC_CTRL, 253 KEYC_SHIFT|KEYC_CTRL, 254 KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL, 255 KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL, 256 KEYC_META|KEYC_IMPLIED_META 257}; 258 259/* 260 * Default terminfo(5) keys. Any keys that have builtin modifiers (that is, 261 * where the key itself contains the modifiers) has the KEYC_XTERM flag set so 262 * a leading escape is not treated as meta (and probably removed). 263 */ 264struct tty_default_key_code { 265 enum tty_code_code code; 266 key_code key; 267}; 268static const struct tty_default_key_code tty_default_code_keys[] = { 269 /* Function keys. */ 270 { TTYC_KF1, KEYC_F1 }, 271 { TTYC_KF2, KEYC_F2 }, 272 { TTYC_KF3, KEYC_F3 }, 273 { TTYC_KF4, KEYC_F4 }, 274 { TTYC_KF5, KEYC_F5 }, 275 { TTYC_KF6, KEYC_F6 }, 276 { TTYC_KF7, KEYC_F7 }, 277 { TTYC_KF8, KEYC_F8 }, 278 { TTYC_KF9, KEYC_F9 }, 279 { TTYC_KF10, KEYC_F10 }, 280 { TTYC_KF11, KEYC_F11 }, 281 { TTYC_KF12, KEYC_F12 }, 282 283 { TTYC_KF13, KEYC_F1|KEYC_SHIFT }, 284 { TTYC_KF14, KEYC_F2|KEYC_SHIFT }, 285 { TTYC_KF15, KEYC_F3|KEYC_SHIFT }, 286 { TTYC_KF16, KEYC_F4|KEYC_SHIFT }, 287 { TTYC_KF17, KEYC_F5|KEYC_SHIFT }, 288 { TTYC_KF18, KEYC_F6|KEYC_SHIFT }, 289 { TTYC_KF19, KEYC_F7|KEYC_SHIFT }, 290 { TTYC_KF20, KEYC_F8|KEYC_SHIFT }, 291 { TTYC_KF21, KEYC_F9|KEYC_SHIFT }, 292 { TTYC_KF22, KEYC_F10|KEYC_SHIFT }, 293 { TTYC_KF23, KEYC_F11|KEYC_SHIFT }, 294 { TTYC_KF24, KEYC_F12|KEYC_SHIFT }, 295 296 { TTYC_KF25, KEYC_F1|KEYC_CTRL }, 297 { TTYC_KF26, KEYC_F2|KEYC_CTRL }, 298 { TTYC_KF27, KEYC_F3|KEYC_CTRL }, 299 { TTYC_KF28, KEYC_F4|KEYC_CTRL }, 300 { TTYC_KF29, KEYC_F5|KEYC_CTRL }, 301 { TTYC_KF30, KEYC_F6|KEYC_CTRL }, 302 { TTYC_KF31, KEYC_F7|KEYC_CTRL }, 303 { TTYC_KF32, KEYC_F8|KEYC_CTRL }, 304 { TTYC_KF33, KEYC_F9|KEYC_CTRL }, 305 { TTYC_KF34, KEYC_F10|KEYC_CTRL }, 306 { TTYC_KF35, KEYC_F11|KEYC_CTRL }, 307 { TTYC_KF36, KEYC_F12|KEYC_CTRL }, 308 309 { TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL }, 310 { TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL }, 311 { TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL }, 312 { TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL }, 313 { TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL }, 314 { TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL }, 315 { TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL }, 316 { TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL }, 317 { TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL }, 318 { TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL }, 319 { TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL }, 320 { TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL }, 321 322 { TTYC_KF49, KEYC_F1|KEYC_META|KEYC_IMPLIED_META }, 323 { TTYC_KF50, KEYC_F2|KEYC_META|KEYC_IMPLIED_META }, 324 { TTYC_KF51, KEYC_F3|KEYC_META|KEYC_IMPLIED_META }, 325 { TTYC_KF52, KEYC_F4|KEYC_META|KEYC_IMPLIED_META }, 326 { TTYC_KF53, KEYC_F5|KEYC_META|KEYC_IMPLIED_META }, 327 { TTYC_KF54, KEYC_F6|KEYC_META|KEYC_IMPLIED_META }, 328 { TTYC_KF55, KEYC_F7|KEYC_META|KEYC_IMPLIED_META }, 329 { TTYC_KF56, KEYC_F8|KEYC_META|KEYC_IMPLIED_META }, 330 { TTYC_KF57, KEYC_F9|KEYC_META|KEYC_IMPLIED_META }, 331 { TTYC_KF58, KEYC_F10|KEYC_META|KEYC_IMPLIED_META }, 332 { TTYC_KF59, KEYC_F11|KEYC_META|KEYC_IMPLIED_META }, 333 { TTYC_KF60, KEYC_F12|KEYC_META|KEYC_IMPLIED_META }, 334 335 { TTYC_KF61, KEYC_F1|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, 336 { TTYC_KF62, KEYC_F2|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, 337 { TTYC_KF63, KEYC_F3|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, 338 339 { TTYC_KICH1, KEYC_IC }, 340 { TTYC_KDCH1, KEYC_DC }, 341 { TTYC_KHOME, KEYC_HOME }, 342 { TTYC_KEND, KEYC_END }, 343 { TTYC_KNP, KEYC_NPAGE }, 344 { TTYC_KPP, KEYC_PPAGE }, 345 { TTYC_KCBT, KEYC_BTAB }, 346 347 /* Arrow keys from terminfo. */ 348 { TTYC_KCUU1, KEYC_UP|KEYC_CURSOR }, 349 { TTYC_KCUD1, KEYC_DOWN|KEYC_CURSOR }, 350 { TTYC_KCUB1, KEYC_LEFT|KEYC_CURSOR }, 351 { TTYC_KCUF1, KEYC_RIGHT|KEYC_CURSOR }, 352 353 /* Key and modifier capabilities. */ 354 { TTYC_KDC2, KEYC_DC|KEYC_SHIFT }, 355 { TTYC_KDC3, KEYC_DC|KEYC_META|KEYC_IMPLIED_META }, 356 { TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 357 { TTYC_KDC5, KEYC_DC|KEYC_CTRL }, 358 { TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL }, 359 { TTYC_KDC7, KEYC_DC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 360 { TTYC_KIND, KEYC_DOWN|KEYC_SHIFT }, 361 { TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT }, 362 { TTYC_KDN3, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META }, 363 { TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 364 { TTYC_KDN5, KEYC_DOWN|KEYC_CTRL }, 365 { TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL }, 366 { TTYC_KDN7, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 367 { TTYC_KEND2, KEYC_END|KEYC_SHIFT }, 368 { TTYC_KEND3, KEYC_END|KEYC_META|KEYC_IMPLIED_META }, 369 { TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 370 { TTYC_KEND5, KEYC_END|KEYC_CTRL }, 371 { TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL }, 372 { TTYC_KEND7, KEYC_END|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 373 { TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT }, 374 { TTYC_KHOM3, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, 375 { TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 376 { TTYC_KHOM5, KEYC_HOME|KEYC_CTRL }, 377 { TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL }, 378 { TTYC_KHOM7, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 379 { TTYC_KIC2, KEYC_IC|KEYC_SHIFT }, 380 { TTYC_KIC3, KEYC_IC|KEYC_META|KEYC_IMPLIED_META }, 381 { TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 382 { TTYC_KIC5, KEYC_IC|KEYC_CTRL }, 383 { TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL }, 384 { TTYC_KIC7, KEYC_IC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 385 { TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT }, 386 { TTYC_KLFT3, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META }, 387 { TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 388 { TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL }, 389 { TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL }, 390 { TTYC_KLFT7, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 391 { TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT }, 392 { TTYC_KNXT3, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META }, 393 { TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 394 { TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL }, 395 { TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL }, 396 { TTYC_KNXT7, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 397 { TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT }, 398 { TTYC_KPRV3, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META }, 399 { TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 400 { TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL }, 401 { TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL }, 402 { TTYC_KPRV7, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 403 { TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT }, 404 { TTYC_KRIT3, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META }, 405 { TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 406 { TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL }, 407 { TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL }, 408 { TTYC_KRIT7, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 409 { TTYC_KRI, KEYC_UP|KEYC_SHIFT }, 410 { TTYC_KUP2, KEYC_UP|KEYC_SHIFT }, 411 { TTYC_KUP3, KEYC_UP|KEYC_META|KEYC_IMPLIED_META }, 412 { TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, 413 { TTYC_KUP5, KEYC_UP|KEYC_CTRL }, 414 { TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL }, 415 { TTYC_KUP7, KEYC_UP|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, 416}; 417 418/* Add key to tree. */ 419static void 420tty_keys_add(struct tty *tty, const char *s, key_code key) 421{ 422 struct tty_key *tk; 423 size_t size; 424 const char *keystr; 425 426 keystr = key_string_lookup_key(key, 1); 427 if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) { 428 log_debug("new key %s: 0x%llx (%s)", s, key, keystr); 429 tty_keys_add1(&tty->key_tree, s, key); 430 } else { 431 log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr); 432 tk->key = key; 433 } 434} 435 436/* Add next node to the tree. */ 437static void 438tty_keys_add1(struct tty_key **tkp, const char *s, key_code key) 439{ 440 struct tty_key *tk; 441 442 /* Allocate a tree entry if there isn't one already. */ 443 tk = *tkp; 444 if (tk == NULL) { 445 tk = *tkp = xcalloc(1, sizeof *tk); 446 tk->ch = *s; 447 tk->key = KEYC_UNKNOWN; 448 } 449 450 /* Find the next entry. */ 451 if (*s == tk->ch) { 452 /* Move forward in string. */ 453 s++; 454 455 /* If this is the end of the string, no more is necessary. */ 456 if (*s == '\0') { 457 tk->key = key; 458 return; 459 } 460 461 /* Use the child tree for the next character. */ 462 tkp = &tk->next; 463 } else { 464 if (*s < tk->ch) 465 tkp = &tk->left; 466 else if (*s > tk->ch) 467 tkp = &tk->right; 468 } 469 470 /* And recurse to add it. */ 471 tty_keys_add1(tkp, s, key); 472} 473 474/* Initialise a key tree from the table. */ 475void 476tty_keys_build(struct tty *tty) 477{ 478 const struct tty_default_key_raw *tdkr; 479 const struct tty_default_key_xterm *tdkx; 480 const struct tty_default_key_code *tdkc; 481 u_int i, j; 482 const char *s; 483 struct options_entry *o; 484 struct options_array_item *a; 485 union options_value *ov; 486 char copy[16]; 487 key_code key; 488 489 if (tty->key_tree != NULL) 490 tty_keys_free(tty); 491 tty->key_tree = NULL; 492 493 for (i = 0; i < nitems(tty_default_xterm_keys); i++) { 494 tdkx = &tty_default_xterm_keys[i]; 495 for (j = 2; j < nitems(tty_default_xterm_modifiers); j++) { 496 strlcpy(copy, tdkx->template, sizeof copy); 497 copy[strcspn(copy, "_")] = '0' + j; 498 499 key = tdkx->key|tty_default_xterm_modifiers[j]; 500 tty_keys_add(tty, copy, key); 501 } 502 } 503 for (i = 0; i < nitems(tty_default_raw_keys); i++) { 504 tdkr = &tty_default_raw_keys[i]; 505 506 s = tdkr->string; 507 if (*s != '\0') 508 tty_keys_add(tty, s, tdkr->key); 509 } 510 for (i = 0; i < nitems(tty_default_code_keys); i++) { 511 tdkc = &tty_default_code_keys[i]; 512 513 s = tty_term_string(tty->term, tdkc->code); 514 if (*s != '\0') 515 tty_keys_add(tty, s, tdkc->key); 516 517 } 518 519 o = options_get(global_options, "user-keys"); 520 if (o != NULL) { 521 a = options_array_first(o); 522 while (a != NULL) { 523 i = options_array_item_index(a); 524 ov = options_array_item_value(a); 525 tty_keys_add(tty, ov->string, KEYC_USER + i); 526 a = options_array_next(a); 527 } 528 } 529} 530 531/* Free the entire key tree. */ 532void 533tty_keys_free(struct tty *tty) 534{ 535 tty_keys_free1(tty->key_tree); 536} 537 538/* Free a single key. */ 539static void 540tty_keys_free1(struct tty_key *tk) 541{ 542 if (tk->next != NULL) 543 tty_keys_free1(tk->next); 544 if (tk->left != NULL) 545 tty_keys_free1(tk->left); 546 if (tk->right != NULL) 547 tty_keys_free1(tk->right); 548 free(tk); 549} 550 551/* Lookup a key in the tree. */ 552static struct tty_key * 553tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size) 554{ 555 *size = 0; 556 return (tty_keys_find1(tty->key_tree, buf, len, size)); 557} 558 559/* Find the next node. */ 560static struct tty_key * 561tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size) 562{ 563 /* If no data, no match. */ 564 if (len == 0) 565 return (NULL); 566 567 /* If the node is NULL, this is the end of the tree. No match. */ 568 if (tk == NULL) 569 return (NULL); 570 571 /* Pick the next in the sequence. */ 572 if (tk->ch == *buf) { 573 /* Move forward in the string. */ 574 buf++; len--; 575 (*size)++; 576 577 /* At the end of the string, return the current node. */ 578 if (len == 0 || (tk->next == NULL && tk->key != KEYC_UNKNOWN)) 579 return (tk); 580 581 /* Move into the next tree for the following character. */ 582 tk = tk->next; 583 } else { 584 if (*buf < tk->ch) 585 tk = tk->left; 586 else if (*buf > tk->ch) 587 tk = tk->right; 588 } 589 590 /* Move to the next in the tree. */ 591 return (tty_keys_find1(tk, buf, len, size)); 592} 593 594/* Look up part of the next key. */ 595static int 596tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key, 597 size_t *size, int expired) 598{ 599 struct client *c = tty->client; 600 struct tty_key *tk, *tk1; 601 struct utf8_data ud; 602 enum utf8_state more; 603 utf8_char uc; 604 u_int i; 605 606 log_debug("%s: next key is %zu (%.*s) (expired=%d)", c->name, len, 607 (int)len, buf, expired); 608 609 /* Is this a known key? */ 610 tk = tty_keys_find(tty, buf, len, size); 611 if (tk != NULL && tk->key != KEYC_UNKNOWN) { 612 tk1 = tk; 613 do 614 log_debug("%s: keys in list: %#llx", c->name, tk1->key); 615 while ((tk1 = tk1->next) != NULL); 616 if (tk->next != NULL && !expired) 617 return (1); 618 *key = tk->key; 619 return (0); 620 } 621 622 /* Is this valid UTF-8? */ 623 more = utf8_open(&ud, (u_char)*buf); 624 if (more == UTF8_MORE) { 625 *size = ud.size; 626 if (len < ud.size) { 627 if (!expired) 628 return (1); 629 return (-1); 630 } 631 for (i = 1; i < ud.size; i++) 632 more = utf8_append(&ud, (u_char)buf[i]); 633 if (more != UTF8_DONE) 634 return (-1); 635 636 if (utf8_from_data(&ud, &uc) != UTF8_DONE) 637 return (-1); 638 *key = uc; 639 640 log_debug("%s: UTF-8 key %.*s %#llx", c->name, (int)ud.size, 641 ud.data, *key); 642 return (0); 643 } 644 645 return (-1); 646} 647 648/* Process at least one key in the buffer. Return 0 if no keys present. */ 649int 650tty_keys_next(struct tty *tty) 651{ 652 struct client *c = tty->client; 653 struct timeval tv; 654 const char *buf; 655 size_t len, size; 656 cc_t bspace; 657 int delay, expired = 0, n; 658 key_code key; 659 struct mouse_event m = { 0 }; 660 struct key_event *event; 661 662 /* Get key buffer. */ 663 buf = (const char *)EVBUFFER_DATA(tty->in); 664 len = EVBUFFER_LENGTH(tty->in); 665 if (len == 0) 666 return (0); 667 log_debug("%s: keys are %zu (%.*s)", c->name, len, (int)len, buf); 668 669 /* Is this a clipboard response? */ 670 switch (tty_keys_clipboard(tty, buf, len, &size)) { 671 case 0: /* yes */ 672 key = KEYC_UNKNOWN; 673 goto complete_key; 674 case -1: /* no, or not valid */ 675 break; 676 case 1: /* partial */ 677 goto partial_key; 678 } 679 680 /* Is this a device attributes response? */ 681 switch (tty_keys_device_attributes(tty, buf, len, &size)) { 682 case 0: /* yes */ 683 key = KEYC_UNKNOWN; 684 goto complete_key; 685 case -1: /* no, or not valid */ 686 break; 687 case 1: /* partial */ 688 goto partial_key; 689 } 690 691 /* Is this an extended device attributes response? */ 692 switch (tty_keys_extended_device_attributes(tty, buf, len, &size)) { 693 case 0: /* yes */ 694 key = KEYC_UNKNOWN; 695 goto complete_key; 696 case -1: /* no, or not valid */ 697 break; 698 case 1: /* partial */ 699 goto partial_key; 700 } 701 702 /* Is this a mouse key press? */ 703 switch (tty_keys_mouse(tty, buf, len, &size, &m)) { 704 case 0: /* yes */ 705 key = KEYC_MOUSE; 706 goto complete_key; 707 case -1: /* no, or not valid */ 708 break; 709 case -2: /* yes, but we don't care. */ 710 key = KEYC_MOUSE; 711 goto discard_key; 712 case 1: /* partial */ 713 goto partial_key; 714 } 715 716 /* Is this an extended key press? */ 717 switch (tty_keys_extended_key(tty, buf, len, &size, &key)) { 718 case 0: /* yes */ 719 goto complete_key; 720 case -1: /* no, or not valid */ 721 break; 722 case 1: /* partial */ 723 goto partial_key; 724 } 725 726first_key: 727 /* Try to lookup complete key. */ 728 n = tty_keys_next1(tty, buf, len, &key, &size, expired); 729 if (n == 0) /* found */ 730 goto complete_key; 731 if (n == 1) 732 goto partial_key; 733 734 /* 735 * If not a complete key, look for key with an escape prefix (meta 736 * modifier). 737 */ 738 if (*buf == '\033' && len > 1) { 739 /* Look for a key without the escape. */ 740 n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired); 741 if (n == 0) { /* found */ 742 if (key & KEYC_IMPLIED_META) { 743 /* 744 * We want the escape key as well as the xterm 745 * key, because the xterm sequence implicitly 746 * includes the escape (so if we see 747 * \033\033[1;3D we know it is an Escape 748 * followed by M-Left, not just M-Left). 749 */ 750 key = '\033'; 751 size = 1; 752 goto complete_key; 753 } 754 key |= KEYC_META; 755 size++; 756 goto complete_key; 757 } 758 if (n == 1) /* partial */ 759 goto partial_key; 760 } 761 762 /* 763 * At this point, we know the key is not partial (with or without 764 * escape). So pass it through even if the timer has not expired. 765 */ 766 if (*buf == '\033' && len >= 2) { 767 key = (u_char)buf[1] | KEYC_META; 768 size = 2; 769 } else { 770 key = (u_char)buf[0]; 771 size = 1; 772 } 773 goto complete_key; 774 775partial_key: 776 log_debug("%s: partial key %.*s", c->name, (int)len, buf); 777 778 /* If timer is going, check for expiration. */ 779 if (tty->flags & TTY_TIMER) { 780 if (evtimer_initialized(&tty->key_timer) && 781 !evtimer_pending(&tty->key_timer, NULL)) { 782 expired = 1; 783 goto first_key; 784 } 785 return (0); 786 } 787 788 /* Get the time period. */ 789 delay = options_get_number(global_options, "escape-time"); 790 tv.tv_sec = delay / 1000; 791 tv.tv_usec = (delay % 1000) * 1000L; 792 793 /* Start the timer. */ 794 if (event_initialized(&tty->key_timer)) 795 evtimer_del(&tty->key_timer); 796 evtimer_set(&tty->key_timer, tty_keys_callback, tty); 797 evtimer_add(&tty->key_timer, &tv); 798 799 tty->flags |= TTY_TIMER; 800 return (0); 801 802complete_key: 803 log_debug("%s: complete key %.*s %#llx", c->name, (int)size, buf, key); 804 805 /* 806 * Check for backspace key using termios VERASE - the terminfo 807 * kbs entry is extremely unreliable, so cannot be safely 808 * used. termios should have a better idea. 809 */ 810 bspace = tty->tio.c_cc[VERASE]; 811 if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace) 812 key = (key & KEYC_MASK_MODIFIERS)|KEYC_BSPACE; 813 814 /* Remove data from buffer. */ 815 evbuffer_drain(tty->in, size); 816 817 /* Remove key timer. */ 818 if (event_initialized(&tty->key_timer)) 819 evtimer_del(&tty->key_timer); 820 tty->flags &= ~TTY_TIMER; 821 822 /* Check for focus events. */ 823 if (key == KEYC_FOCUS_OUT) 824 tty->client->flags &= ~CLIENT_FOCUSED; 825 else if (key == KEYC_FOCUS_IN) 826 tty->client->flags |= CLIENT_FOCUSED; 827 828 /* Fire the key. */ 829 if (key != KEYC_UNKNOWN) { 830 event = xmalloc(sizeof *event); 831 event->key = key; 832 memcpy(&event->m, &m, sizeof event->m); 833 if (!server_client_handle_key(c, event)) 834 free(event); 835 } 836 837 return (1); 838 839discard_key: 840 log_debug("%s: discard key %.*s %#llx", c->name, (int)size, buf, key); 841 842 /* Remove data from buffer. */ 843 evbuffer_drain(tty->in, size); 844 845 return (1); 846} 847 848/* Key timer callback. */ 849static void 850tty_keys_callback(__unused int fd, __unused short events, void *data) 851{ 852 struct tty *tty = data; 853 854 if (tty->flags & TTY_TIMER) { 855 while (tty_keys_next(tty)) 856 ; 857 } 858} 859 860/* 861 * Handle extended key input. This has two forms: \033[27;m;k~ and \033[k;mu, 862 * where k is key as a number and m is a modifier. Returns 0 for success, -1 863 * for failure, 1 for partial; 864 */ 865static int 866tty_keys_extended_key(struct tty *tty, const char *buf, size_t len, 867 size_t *size, key_code *key) 868{ 869 struct client *c = tty->client; 870 size_t end; 871 u_int number, modifiers; 872 char tmp[64]; 873 cc_t bspace; 874 key_code nkey; 875 key_code onlykey; 876 877 *size = 0; 878 879 /* First two bytes are always \033[. */ 880 if (buf[0] != '\033') 881 return (-1); 882 if (len == 1) 883 return (1); 884 if (buf[1] != '[') 885 return (-1); 886 if (len == 2) 887 return (1); 888 889 /* 890 * Look for a terminator. Stop at either '~' or anything that isn't a 891 * number or ';'. 892 */ 893 for (end = 2; end < len && end != sizeof tmp; end++) { 894 if (buf[end] == '~') 895 break; 896 if (!isdigit((u_char)buf[end]) && buf[end] != ';') 897 break; 898 } 899 if (end == len) 900 return (1); 901 if (end == sizeof tmp || (buf[end] != '~' && buf[end] != 'u')) 902 return (-1); 903 904 /* Copy to the buffer. */ 905 memcpy(tmp, buf + 2, end); 906 tmp[end] = '\0'; 907 908 /* Try to parse either form of key. */ 909 if (buf[end] == '~') { 910 if (sscanf(tmp, "27;%u;%u", &modifiers, &number) != 2) 911 return (-1); 912 } else { 913 if (sscanf(tmp ,"%u;%u", &number, &modifiers) != 2) 914 return (-1); 915 } 916 *size = end + 1; 917 918 /* Store the key. */ 919 bspace = tty->tio.c_cc[VERASE]; 920 if (bspace != _POSIX_VDISABLE && number == bspace) 921 nkey = KEYC_BSPACE; 922 else 923 nkey = number; 924 925 /* Update the modifiers. */ 926 switch (modifiers) { 927 case 2: 928 nkey |= KEYC_SHIFT; 929 break; 930 case 3: 931 nkey |= (KEYC_META|KEYC_IMPLIED_META); 932 break; 933 case 4: 934 nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META); 935 break; 936 case 5: 937 nkey |= KEYC_CTRL; 938 break; 939 case 6: 940 nkey |= (KEYC_SHIFT|KEYC_CTRL); 941 break; 942 case 7: 943 nkey |= (KEYC_META|KEYC_CTRL); 944 break; 945 case 8: 946 nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL); 947 break; 948 case 9: 949 nkey |= (KEYC_META|KEYC_IMPLIED_META); 950 break; 951 default: 952 *key = KEYC_NONE; 953 break; 954 } 955 956 /* 957 * Don't allow both KEYC_CTRL and as an implied modifier. Also convert 958 * C-X into C-x and so on. 959 */ 960 if (nkey & KEYC_CTRL) { 961 onlykey = (nkey & KEYC_MASK_KEY); 962 if (onlykey < 32 && 963 onlykey != 9 && 964 onlykey != 13 && 965 onlykey != 27) 966 /* nothing */; 967 else if (onlykey >= 97 && onlykey <= 122) 968 onlykey -= 96; 969 else if (onlykey >= 64 && onlykey <= 95) 970 onlykey -= 64; 971 else if (onlykey == 32) 972 onlykey = 0; 973 else if (onlykey == 63) 974 onlykey = 127; 975 else 976 onlykey |= KEYC_CTRL; 977 nkey = onlykey|((nkey & KEYC_MASK_MODIFIERS) & ~KEYC_CTRL); 978 } 979 980 if (log_get_level() != 0) { 981 log_debug("%s: extended key %.*s is %llx (%s)", c->name, 982 (int)*size, buf, nkey, key_string_lookup_key(nkey, 1)); 983 } 984 *key = nkey; 985 return (0); 986} 987 988/* 989 * Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial 990 * (probably a mouse sequence but need more data). 991 */ 992static int 993tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size, 994 struct mouse_event *m) 995{ 996 struct client *c = tty->client; 997 u_int i, x, y, b, sgr_b; 998 u_char sgr_type, ch; 999 1000 /* 1001 * Standard mouse sequences are \033[M followed by three characters 1002 * indicating button, X and Y, all based at 32 with 1,1 top-left. 1003 * 1004 * UTF-8 mouse sequences are similar but the three are expressed as 1005 * UTF-8 characters. 1006 * 1007 * SGR extended mouse sequences are \033[< followed by three numbers in 1008 * decimal and separated by semicolons indicating button, X and Y. A 1009 * trailing 'M' is click or scroll and trailing 'm' release. All are 1010 * based at 0 with 1,1 top-left. 1011 */ 1012 1013 *size = 0; 1014 x = y = b = sgr_b = 0; 1015 sgr_type = ' '; 1016 1017 /* First two bytes are always \033[. */ 1018 if (buf[0] != '\033') 1019 return (-1); 1020 if (len == 1) 1021 return (1); 1022 if (buf[1] != '[') 1023 return (-1); 1024 if (len == 2) 1025 return (1); 1026 1027 /* 1028 * Third byte is M in old standard (and UTF-8 extension which we do not 1029 * support), < in SGR extension. 1030 */ 1031 if (buf[2] == 'M') { 1032 /* Read the three inputs. */ 1033 *size = 3; 1034 for (i = 0; i < 3; i++) { 1035 if (len <= *size) 1036 return (1); 1037 ch = (u_char)buf[(*size)++]; 1038 if (i == 0) 1039 b = ch; 1040 else if (i == 1) 1041 x = ch; 1042 else 1043 y = ch; 1044 } 1045 log_debug("%s: mouse input: %.*s", c->name, (int)*size, buf); 1046 1047 /* Check and return the mouse input. */ 1048 if (b < 32) 1049 return (-1); 1050 b -= 32; 1051 if (x >= 33) 1052 x -= 33; 1053 else 1054 x = 256 - x; 1055 if (y >= 33) 1056 y -= 33; 1057 else 1058 y = 256 - y; 1059 } else if (buf[2] == '<') { 1060 /* Read the three inputs. */ 1061 *size = 3; 1062 while (1) { 1063 if (len <= *size) 1064 return (1); 1065 ch = (u_char)buf[(*size)++]; 1066 if (ch == ';') 1067 break; 1068 if (ch < '0' || ch > '9') 1069 return (-1); 1070 sgr_b = 10 * sgr_b + (ch - '0'); 1071 } 1072 while (1) { 1073 if (len <= *size) 1074 return (1); 1075 ch = (u_char)buf[(*size)++]; 1076 if (ch == ';') 1077 break; 1078 if (ch < '0' || ch > '9') 1079 return (-1); 1080 x = 10 * x + (ch - '0'); 1081 } 1082 while (1) { 1083 if (len <= *size) 1084 return (1); 1085 ch = (u_char)buf[(*size)++]; 1086 if (ch == 'M' || ch == 'm') 1087 break; 1088 if (ch < '0' || ch > '9') 1089 return (-1); 1090 y = 10 * y + (ch - '0'); 1091 } 1092 log_debug("%s: mouse input (SGR): %.*s", c->name, (int)*size, 1093 buf); 1094 1095 /* Check and return the mouse input. */ 1096 if (x < 1 || y < 1) 1097 return (-1); 1098 x--; 1099 y--; 1100 b = sgr_b; 1101 1102 /* Type is M for press, m for release. */ 1103 sgr_type = ch; 1104 if (sgr_type == 'm') 1105 b |= 3; 1106 1107 /* 1108 * Some terminals (like PuTTY 0.63) mistakenly send 1109 * button-release events for scroll-wheel button-press event. 1110 * Discard it before it reaches any program running inside 1111 * tmux. 1112 */ 1113 if (sgr_type == 'm' && (sgr_b & 64)) 1114 return (-2); 1115 } else 1116 return (-1); 1117 1118 /* Fill mouse event. */ 1119 m->lx = tty->mouse_last_x; 1120 m->x = x; 1121 m->ly = tty->mouse_last_y; 1122 m->y = y; 1123 m->lb = tty->mouse_last_b; 1124 m->b = b; 1125 m->sgr_type = sgr_type; 1126 m->sgr_b = sgr_b; 1127 1128 /* Update last mouse state. */ 1129 tty->mouse_last_x = x; 1130 tty->mouse_last_y = y; 1131 tty->mouse_last_b = b; 1132 1133 return (0); 1134} 1135 1136/* 1137 * Handle OSC 52 clipboard input. Returns 0 for success, -1 for failure, 1 for 1138 * partial. 1139 */ 1140static int 1141tty_keys_clipboard(__unused struct tty *tty, const char *buf, size_t len, 1142 size_t *size) 1143{ 1144 size_t end, terminator, needed; 1145 char *copy, *out; 1146 int outlen; 1147 1148 *size = 0; 1149 1150 /* First five bytes are always \033]52;. */ 1151 if (buf[0] != '\033') 1152 return (-1); 1153 if (len == 1) 1154 return (1); 1155 if (buf[1] != ']') 1156 return (-1); 1157 if (len == 2) 1158 return (1); 1159 if (buf[2] != '5') 1160 return (-1); 1161 if (len == 3) 1162 return (1); 1163 if (buf[3] != '2') 1164 return (-1); 1165 if (len == 4) 1166 return (1); 1167 if (buf[4] != ';') 1168 return (-1); 1169 if (len == 5) 1170 return (1); 1171 1172 /* Find the terminator if any. */ 1173 terminator = 0; /* XXX: appease gcc (this value is never used) */ 1174 for (end = 5; end < len; end++) { 1175 if (buf[end] == '\007') { 1176 terminator = 1; 1177 break; 1178 } 1179 if (end > 5 && buf[end - 1] == '\033' && buf[end] == '\\') { 1180 terminator = 2; 1181 break; 1182 } 1183 } 1184 if (end == len) 1185 return (1); 1186 *size = end + terminator; 1187 1188 /* Skip the initial part. */ 1189 buf += 5; 1190 end -= 5; 1191 1192 /* Get the second argument. */ 1193 while (end != 0 && *buf != ';') { 1194 buf++; 1195 end--; 1196 } 1197 if (end == 0 || end == 1) 1198 return (0); 1199 buf++; 1200 end--; 1201 1202 /* It has to be a string so copy it. */ 1203 copy = xmalloc(end + 1); 1204 memcpy(copy, buf, end); 1205 copy[end] = '\0'; 1206 1207 /* Convert from base64. */ 1208 needed = (end / 4) * 3; 1209 out = xmalloc(needed); 1210 if ((outlen = b64_pton(copy, (u_char *)out, len)) == -1) { 1211 free(out); 1212 free(copy); 1213 return (0); 1214 } 1215 free(copy); 1216 1217 /* Create a new paste buffer. */ 1218 log_debug("%s: %.*s", __func__, outlen, out); 1219 paste_add(NULL, out, outlen); 1220 1221 return (0); 1222} 1223 1224/* 1225 * Handle secondary device attributes input. Returns 0 for success, -1 for 1226 * failure, 1 for partial. 1227 */ 1228static int 1229tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len, 1230 size_t *size) 1231{ 1232 struct client *c = tty->client; 1233 u_int i, n = 0; 1234 char tmp[64], *endptr, p[32] = { 0 }, *cp, *next; 1235 1236 *size = 0; 1237 if (tty->flags & TTY_HAVEDA) 1238 return (-1); 1239 1240 /* 1241 * First three bytes are always \033[>. Some older Terminal.app 1242 * versions respond as for DA (\033[?) so accept and ignore that. 1243 */ 1244 if (buf[0] != '\033') 1245 return (-1); 1246 if (len == 1) 1247 return (1); 1248 if (buf[1] != '[') 1249 return (-1); 1250 if (len == 2) 1251 return (1); 1252 if (buf[2] != '>' && buf[2] != '?') 1253 return (-1); 1254 if (len == 3) 1255 return (1); 1256 1257 /* Copy the rest up to a 'c'. */ 1258 for (i = 0; i < (sizeof tmp) - 1; i++) { 1259 if (3 + i == len) 1260 return (1); 1261 if (buf[3 + i] == 'c') 1262 break; 1263 tmp[i] = buf[3 + i]; 1264 } 1265 if (i == (sizeof tmp) - 1) 1266 return (-1); 1267 tmp[i] = '\0'; 1268 *size = 4 + i; 1269 1270 /* Ignore DA response. */ 1271 if (buf[2] == '?') 1272 return (0); 1273 1274 /* Convert all arguments to numbers. */ 1275 cp = tmp; 1276 while ((next = strsep(&cp, ";")) != NULL) { 1277 p[n] = strtoul(next, &endptr, 10); 1278 if (*endptr != '\0') 1279 p[n] = 0; 1280 n++; 1281 } 1282 1283 /* Add terminal features. */ 1284 switch (p[0]) { 1285 case 41: /* VT420 */ 1286 tty_add_features(&c->term_features, "margins,rectfill", ","); 1287 break; 1288 case 'M': /* mintty */ 1289 tty_default_features(&c->term_features, "mintty", 0); 1290 break; 1291 case 'T': /* tmux */ 1292 tty_default_features(&c->term_features, "tmux", 0); 1293 break; 1294 case 'U': /* rxvt-unicode */ 1295 tty_default_features(&c->term_features, "rxvt-unicode", 0); 1296 break; 1297 } 1298 log_debug("%s: received secondary DA %.*s", c->name, (int)*size, buf); 1299 1300 tty_update_features(tty); 1301 tty->flags |= TTY_HAVEDA; 1302 1303 return (0); 1304} 1305 1306/* 1307 * Handle extended device attributes input. Returns 0 for success, -1 for 1308 * failure, 1 for partial. 1309 */ 1310static int 1311tty_keys_extended_device_attributes(struct tty *tty, const char *buf, 1312 size_t len, size_t *size) 1313{ 1314 struct client *c = tty->client; 1315 u_int i; 1316 char tmp[128]; 1317 1318 *size = 0; 1319 if (tty->flags & TTY_HAVEXDA) 1320 return (-1); 1321 1322 /* First four bytes are always \033P>|. */ 1323 if (buf[0] != '\033') 1324 return (-1); 1325 if (len == 1) 1326 return (1); 1327 if (buf[1] != 'P') 1328 return (-1); 1329 if (len == 2) 1330 return (1); 1331 if (buf[2] != '>') 1332 return (-1); 1333 if (len == 3) 1334 return (1); 1335 if (buf[3] != '|') 1336 return (-1); 1337 if (len == 4) 1338 return (1); 1339 1340 /* Copy the rest up to a '\033\\'. */ 1341 for (i = 0; i < (sizeof tmp) - 1; i++) { 1342 if (4 + i == len) 1343 return (1); 1344 if (buf[4 + i - 1] == '\033' && buf[4 + i] == '\\') 1345 break; 1346 tmp[i] = buf[4 + i]; 1347 } 1348 if (i == (sizeof tmp) - 1) 1349 return (-1); 1350 tmp[i - 1] = '\0'; 1351 *size = 5 + i; 1352 1353 /* Add terminal features. */ 1354 if (strncmp(tmp, "iTerm2 ", 7) == 0) 1355 tty_default_features(&c->term_features, "iTerm2", 0); 1356 else if (strncmp(tmp, "tmux ", 5) == 0) 1357 tty_default_features(&c->term_features, "tmux", 0); 1358 else if (strncmp(tmp, "XTerm(", 6) == 0) 1359 tty_default_features(&c->term_features, "XTerm", 0); 1360 else if (strncmp(tmp, "mintty ", 7) == 0) 1361 tty_default_features(&c->term_features, "mintty", 0); 1362 log_debug("%s: received extended DA %.*s", c->name, (int)*size, buf); 1363 1364 free(c->term_type); 1365 c->term_type = xstrdup(tmp); 1366 1367 tty_update_features(tty); 1368 tty->flags |= TTY_HAVEXDA; 1369 1370 return (0); 1371} 1372