1 /* $OpenBSD: cmd-set-option.c,v 1.64 2014/01/28 23:07:09 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> 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 <stdlib.h> 22 #include <string.h> 23 24 #include "tmux.h" 25 26 /* 27 * Set an option. 28 */ 29 30 enum cmd_retval cmd_set_option_exec(struct cmd *, struct cmd_q *); 31 32 enum cmd_retval cmd_set_option_user(struct cmd *, struct cmd_q *, 33 const char *, const char *); 34 35 int cmd_set_option_unset(struct cmd *, struct cmd_q *, 36 const struct options_table_entry *, struct options *, 37 const char *); 38 int cmd_set_option_set(struct cmd *, struct cmd_q *, 39 const struct options_table_entry *, struct options *, 40 const char *); 41 42 struct options_entry *cmd_set_option_string(struct cmd *, struct cmd_q *, 43 const struct options_table_entry *, struct options *, 44 const char *); 45 struct options_entry *cmd_set_option_number(struct cmd *, struct cmd_q *, 46 const struct options_table_entry *, struct options *, 47 const char *); 48 struct options_entry *cmd_set_option_key(struct cmd *, struct cmd_q *, 49 const struct options_table_entry *, struct options *, 50 const char *); 51 struct options_entry *cmd_set_option_colour(struct cmd *, struct cmd_q *, 52 const struct options_table_entry *, struct options *, 53 const char *); 54 struct options_entry *cmd_set_option_attributes(struct cmd *, struct cmd_q *, 55 const struct options_table_entry *, struct options *, 56 const char *); 57 struct options_entry *cmd_set_option_flag(struct cmd *, struct cmd_q *, 58 const struct options_table_entry *, struct options *, 59 const char *); 60 struct options_entry *cmd_set_option_choice(struct cmd *, struct cmd_q *, 61 const struct options_table_entry *, struct options *, 62 const char *); 63 struct options_entry *cmd_set_option_style(struct cmd *, struct cmd_q *, 64 const struct options_table_entry *, struct options *, 65 const char *); 66 67 const struct cmd_entry cmd_set_option_entry = { 68 "set-option", "set", 69 "agoqst:uw", 1, 2, 70 "[-agosquw] [-t target-session|target-window] option [value]", 71 0, 72 NULL, 73 cmd_set_option_exec 74 }; 75 76 const struct cmd_entry cmd_set_window_option_entry = { 77 "set-window-option", "setw", 78 "agoqt:u", 1, 2, 79 "[-agoqu] " CMD_TARGET_WINDOW_USAGE " option [value]", 80 0, 81 NULL, 82 cmd_set_option_exec 83 }; 84 85 enum cmd_retval 86 cmd_set_option_exec(struct cmd *self, struct cmd_q *cmdq) 87 { 88 struct args *args = self->args; 89 const struct options_table_entry *table, *oe; 90 struct session *s; 91 struct winlink *wl; 92 struct client *c; 93 struct options *oo; 94 struct window *w; 95 const char *optstr, *valstr; 96 u_int i; 97 98 /* Get the option name and value. */ 99 optstr = args->argv[0]; 100 if (*optstr == '\0') { 101 cmdq_error(cmdq, "invalid option"); 102 return (CMD_RETURN_ERROR); 103 } 104 if (args->argc < 2) 105 valstr = NULL; 106 else 107 valstr = args->argv[1]; 108 109 /* Is this a user option? */ 110 if (*optstr == '@') 111 return (cmd_set_option_user(self, cmdq, optstr, valstr)); 112 113 /* Find the option entry, try each table. */ 114 table = oe = NULL; 115 if (options_table_find(optstr, &table, &oe) != 0) { 116 cmdq_error(cmdq, "ambiguous option: %s", optstr); 117 return (CMD_RETURN_ERROR); 118 } 119 if (oe == NULL) { 120 cmdq_error(cmdq, "unknown option: %s", optstr); 121 return (CMD_RETURN_ERROR); 122 } 123 124 /* Work out the tree from the table. */ 125 if (table == server_options_table) 126 oo = &global_options; 127 else if (table == window_options_table) { 128 if (args_has(self->args, 'g')) 129 oo = &global_w_options; 130 else { 131 wl = cmd_find_window(cmdq, args_get(args, 't'), NULL); 132 if (wl == NULL) { 133 cmdq_error(cmdq, 134 "couldn't set '%s'%s", optstr, 135 (!args_has(args, 't') && !args_has(args, 136 'g')) ? " need target window or -g" : ""); 137 return (CMD_RETURN_ERROR); 138 } 139 oo = &wl->window->options; 140 } 141 } else if (table == session_options_table) { 142 if (args_has(self->args, 'g')) 143 oo = &global_s_options; 144 else { 145 s = cmd_find_session(cmdq, args_get(args, 't'), 0); 146 if (s == NULL) { 147 cmdq_error(cmdq, 148 "couldn't set '%s'%s", optstr, 149 (!args_has(args, 't') && !args_has(args, 150 'g')) ? " need target session or -g" : ""); 151 return (CMD_RETURN_ERROR); 152 } 153 oo = &s->options; 154 } 155 } else { 156 cmdq_error(cmdq, "unknown table"); 157 return (CMD_RETURN_ERROR); 158 } 159 160 /* Unset or set the option. */ 161 if (args_has(args, 'u')) { 162 if (cmd_set_option_unset(self, cmdq, oe, oo, valstr) != 0) 163 return (CMD_RETURN_ERROR); 164 } else { 165 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) { 166 if (!args_has(args, 'q')) 167 cmdq_print(cmdq, "already set: %s", optstr); 168 return (CMD_RETURN_NORMAL); 169 } 170 if (cmd_set_option_set(self, cmdq, oe, oo, valstr) != 0) 171 return (CMD_RETURN_ERROR); 172 } 173 174 /* Start or stop timers when automatic-rename changed. */ 175 if (strcmp (oe->name, "automatic-rename") == 0) { 176 for (i = 0; i < ARRAY_LENGTH(&windows); i++) { 177 if ((w = ARRAY_ITEM(&windows, i)) == NULL) 178 continue; 179 if (options_get_number(&w->options, "automatic-rename")) 180 queue_window_name(w); 181 else if (event_initialized(&w->name_timer)) 182 evtimer_del(&w->name_timer); 183 } 184 } 185 186 /* Update sizes and redraw. May not need it but meh. */ 187 recalculate_sizes(); 188 for (i = 0; i < ARRAY_LENGTH(&clients); i++) { 189 c = ARRAY_ITEM(&clients, i); 190 if (c != NULL && c->session != NULL) 191 server_redraw_client(c); 192 } 193 194 return (CMD_RETURN_NORMAL); 195 } 196 197 /* Set user option. */ 198 enum cmd_retval 199 cmd_set_option_user(struct cmd *self, struct cmd_q *cmdq, const char* optstr, 200 const char *valstr) 201 { 202 struct args *args = self->args; 203 struct session *s; 204 struct winlink *wl; 205 struct options *oo; 206 207 if (args_has(args, 's')) 208 oo = &global_options; 209 else if (args_has(self->args, 'w') || 210 self->entry == &cmd_set_window_option_entry) { 211 if (args_has(self->args, 'g')) 212 oo = &global_w_options; 213 else { 214 wl = cmd_find_window(cmdq, args_get(args, 't'), NULL); 215 if (wl == NULL) 216 return (CMD_RETURN_ERROR); 217 oo = &wl->window->options; 218 } 219 } else { 220 if (args_has(self->args, 'g')) 221 oo = &global_s_options; 222 else { 223 s = cmd_find_session(cmdq, args_get(args, 't'), 0); 224 if (s == NULL) 225 return (CMD_RETURN_ERROR); 226 oo = &s->options; 227 } 228 } 229 230 if (args_has(args, 'u')) { 231 if (options_find1(oo, optstr) == NULL) { 232 cmdq_error(cmdq, "unknown option: %s", optstr); 233 return (CMD_RETURN_ERROR); 234 } 235 if (valstr != NULL) { 236 cmdq_error(cmdq, "value passed to unset option: %s", 237 optstr); 238 return (CMD_RETURN_ERROR); 239 } 240 options_remove(oo, optstr); 241 } else { 242 if (valstr == NULL) { 243 cmdq_error(cmdq, "empty value"); 244 return (CMD_RETURN_ERROR); 245 } 246 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) { 247 if (!args_has(args, 'q')) 248 cmdq_print(cmdq, "already set: %s", optstr); 249 return (CMD_RETURN_NORMAL); 250 } 251 options_set_string(oo, optstr, "%s", valstr); 252 if (!args_has(args, 'q')) { 253 cmdq_info(cmdq, "set option: %s -> %s", optstr, 254 valstr); 255 } 256 } 257 return (CMD_RETURN_NORMAL); 258 } 259 260 261 /* Unset an option. */ 262 int 263 cmd_set_option_unset(struct cmd *self, struct cmd_q *cmdq, 264 const struct options_table_entry *oe, struct options *oo, const char *value) 265 { 266 struct args *args = self->args; 267 268 if (args_has(args, 'g')) { 269 cmdq_error(cmdq, "can't unset global option: %s", oe->name); 270 return (-1); 271 } 272 if (value != NULL) { 273 cmdq_error(cmdq, "value passed to unset option: %s", oe->name); 274 return (-1); 275 } 276 277 options_remove(oo, oe->name); 278 if (!args_has(args, 'q')) 279 cmdq_info(cmdq, "unset option: %s", oe->name); 280 return (0); 281 } 282 283 /* Set an option. */ 284 int 285 cmd_set_option_set(struct cmd *self, struct cmd_q *cmdq, 286 const struct options_table_entry *oe, struct options *oo, const char *value) 287 { 288 struct args *args = self->args; 289 struct options_entry *o; 290 const char *s; 291 292 if (oe->type != OPTIONS_TABLE_FLAG && value == NULL) { 293 cmdq_error(cmdq, "empty value"); 294 return (-1); 295 } 296 297 o = NULL; 298 switch (oe->type) { 299 case OPTIONS_TABLE_STRING: 300 o = cmd_set_option_string(self, cmdq, oe, oo, value); 301 break; 302 case OPTIONS_TABLE_NUMBER: 303 o = cmd_set_option_number(self, cmdq, oe, oo, value); 304 break; 305 case OPTIONS_TABLE_KEY: 306 o = cmd_set_option_key(self, cmdq, oe, oo, value); 307 break; 308 case OPTIONS_TABLE_COLOUR: 309 o = cmd_set_option_colour(self, cmdq, oe, oo, value); 310 style_update_new(oo, o->name, oe->style); 311 break; 312 case OPTIONS_TABLE_ATTRIBUTES: 313 o = cmd_set_option_attributes(self, cmdq, oe, oo, value); 314 style_update_new(oo, o->name, oe->style); 315 break; 316 case OPTIONS_TABLE_FLAG: 317 o = cmd_set_option_flag(self, cmdq, oe, oo, value); 318 break; 319 case OPTIONS_TABLE_CHOICE: 320 o = cmd_set_option_choice(self, cmdq, oe, oo, value); 321 break; 322 case OPTIONS_TABLE_STYLE: 323 o = cmd_set_option_style(self, cmdq, oe, oo, value); 324 break; 325 } 326 if (o == NULL) 327 return (-1); 328 329 s = options_table_print_entry(oe, o, 0); 330 if (!args_has(args, 'q')) 331 cmdq_info(cmdq, "set option: %s -> %s", oe->name, s); 332 return (0); 333 } 334 335 /* Set a string option. */ 336 struct options_entry * 337 cmd_set_option_string(struct cmd *self, unused struct cmd_q *cmdq, 338 const struct options_table_entry *oe, struct options *oo, const char *value) 339 { 340 struct args *args = self->args; 341 struct options_entry *o; 342 char *oldval, *newval; 343 344 if (args_has(args, 'a')) { 345 oldval = options_get_string(oo, oe->name); 346 xasprintf(&newval, "%s%s", oldval, value); 347 } else 348 newval = xstrdup(value); 349 350 o = options_set_string(oo, oe->name, "%s", newval); 351 352 free(newval); 353 return (o); 354 } 355 356 /* Set a number option. */ 357 struct options_entry * 358 cmd_set_option_number(unused struct cmd *self, struct cmd_q *cmdq, 359 const struct options_table_entry *oe, struct options *oo, const char *value) 360 { 361 long long ll; 362 const char *errstr; 363 364 ll = strtonum(value, oe->minimum, oe->maximum, &errstr); 365 if (errstr != NULL) { 366 cmdq_error(cmdq, "value is %s: %s", errstr, value); 367 return (NULL); 368 } 369 370 return (options_set_number(oo, oe->name, ll)); 371 } 372 373 /* Set a key option. */ 374 struct options_entry * 375 cmd_set_option_key(unused struct cmd *self, struct cmd_q *cmdq, 376 const struct options_table_entry *oe, struct options *oo, const char *value) 377 { 378 int key; 379 380 if ((key = key_string_lookup_string(value)) == KEYC_NONE) { 381 cmdq_error(cmdq, "bad key: %s", value); 382 return (NULL); 383 } 384 385 return (options_set_number(oo, oe->name, key)); 386 } 387 388 /* Set a colour option. */ 389 struct options_entry * 390 cmd_set_option_colour(unused struct cmd *self, struct cmd_q *cmdq, 391 const struct options_table_entry *oe, struct options *oo, const char *value) 392 { 393 int colour; 394 395 if ((colour = colour_fromstring(value)) == -1) { 396 cmdq_error(cmdq, "bad colour: %s", value); 397 return (NULL); 398 } 399 400 return (options_set_number(oo, oe->name, colour)); 401 } 402 403 /* Set an attributes option. */ 404 struct options_entry * 405 cmd_set_option_attributes(unused struct cmd *self, struct cmd_q *cmdq, 406 const struct options_table_entry *oe, struct options *oo, const char *value) 407 { 408 int attr; 409 410 if ((attr = attributes_fromstring(value)) == -1) { 411 cmdq_error(cmdq, "bad attributes: %s", value); 412 return (NULL); 413 } 414 415 return (options_set_number(oo, oe->name, attr)); 416 } 417 418 /* Set a flag option. */ 419 struct options_entry * 420 cmd_set_option_flag(unused struct cmd *self, struct cmd_q *cmdq, 421 const struct options_table_entry *oe, struct options *oo, const char *value) 422 { 423 int flag; 424 425 if (value == NULL || *value == '\0') 426 flag = !options_get_number(oo, oe->name); 427 else { 428 if ((value[0] == '1' && value[1] == '\0') || 429 strcasecmp(value, "on") == 0 || 430 strcasecmp(value, "yes") == 0) 431 flag = 1; 432 else if ((value[0] == '0' && value[1] == '\0') || 433 strcasecmp(value, "off") == 0 || 434 strcasecmp(value, "no") == 0) 435 flag = 0; 436 else { 437 cmdq_error(cmdq, "bad value: %s", value); 438 return (NULL); 439 } 440 } 441 442 return (options_set_number(oo, oe->name, flag)); 443 } 444 445 /* Set a choice option. */ 446 struct options_entry * 447 cmd_set_option_choice(unused struct cmd *self, struct cmd_q *cmdq, 448 const struct options_table_entry *oe, struct options *oo, 449 const char *value) 450 { 451 const char **choicep; 452 int n, choice = -1; 453 454 n = 0; 455 for (choicep = oe->choices; *choicep != NULL; choicep++) { 456 n++; 457 if (strncmp(*choicep, value, strlen(value)) != 0) 458 continue; 459 460 if (choice != -1) { 461 cmdq_error(cmdq, "ambiguous value: %s", value); 462 return (NULL); 463 } 464 choice = n - 1; 465 } 466 if (choice == -1) { 467 cmdq_error(cmdq, "unknown value: %s", value); 468 return (NULL); 469 } 470 471 return (options_set_number(oo, oe->name, choice)); 472 } 473 474 /* Set a style option. */ 475 struct options_entry * 476 cmd_set_option_style(struct cmd *self, struct cmd_q *cmdq, 477 const struct options_table_entry *oe, struct options *oo, 478 const char *value) 479 { 480 struct args *args = self->args; 481 struct options_entry *o; 482 int append; 483 484 append = args_has(args, 'a'); 485 if ((o = options_set_style(oo, oe->name, value, append)) == NULL) { 486 cmdq_error(cmdq, "bad style: %s", value); 487 return (NULL); 488 } 489 490 style_update_old(oo, oe->name, &o->style); 491 return (o); 492 } 493