1 /* $OpenBSD: cmd-set-option.c,v 1.63 2013/10/10 12:00:23 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 64 const struct cmd_entry cmd_set_option_entry = { 65 "set-option", "set", 66 "agoqst:uw", 1, 2, 67 "[-agosquw] [-t target-session|target-window] option [value]", 68 0, 69 NULL, 70 cmd_set_option_exec 71 }; 72 73 const struct cmd_entry cmd_set_window_option_entry = { 74 "set-window-option", "setw", 75 "agoqt:u", 1, 2, 76 "[-agoqu] " CMD_TARGET_WINDOW_USAGE " option [value]", 77 0, 78 NULL, 79 cmd_set_option_exec 80 }; 81 82 enum cmd_retval 83 cmd_set_option_exec(struct cmd *self, struct cmd_q *cmdq) 84 { 85 struct args *args = self->args; 86 const struct options_table_entry *table, *oe; 87 struct session *s; 88 struct winlink *wl; 89 struct client *c; 90 struct options *oo; 91 struct window *w; 92 const char *optstr, *valstr; 93 u_int i; 94 95 /* Get the option name and value. */ 96 optstr = args->argv[0]; 97 if (*optstr == '\0') { 98 cmdq_error(cmdq, "invalid option"); 99 return (CMD_RETURN_ERROR); 100 } 101 if (args->argc < 2) 102 valstr = NULL; 103 else 104 valstr = args->argv[1]; 105 106 /* Is this a user option? */ 107 if (*optstr == '@') 108 return (cmd_set_option_user(self, cmdq, optstr, valstr)); 109 110 /* Find the option entry, try each table. */ 111 table = oe = NULL; 112 if (options_table_find(optstr, &table, &oe) != 0) { 113 cmdq_error(cmdq, "ambiguous option: %s", optstr); 114 return (CMD_RETURN_ERROR); 115 } 116 if (oe == NULL) { 117 cmdq_error(cmdq, "unknown option: %s", optstr); 118 return (CMD_RETURN_ERROR); 119 } 120 121 /* Work out the tree from the table. */ 122 if (table == server_options_table) 123 oo = &global_options; 124 else if (table == window_options_table) { 125 if (args_has(self->args, 'g')) 126 oo = &global_w_options; 127 else { 128 wl = cmd_find_window(cmdq, args_get(args, 't'), NULL); 129 if (wl == NULL) { 130 cmdq_error(cmdq, 131 "couldn't set '%s'%s", optstr, 132 (!args_has(args, 't') && !args_has(args, 133 'g')) ? " need target window or -g" : ""); 134 return (CMD_RETURN_ERROR); 135 } 136 oo = &wl->window->options; 137 } 138 } else if (table == session_options_table) { 139 if (args_has(self->args, 'g')) 140 oo = &global_s_options; 141 else { 142 s = cmd_find_session(cmdq, args_get(args, 't'), 0); 143 if (s == NULL) { 144 cmdq_error(cmdq, 145 "couldn't set '%s'%s", optstr, 146 (!args_has(args, 't') && !args_has(args, 147 'g')) ? " need target session or -g" : ""); 148 return (CMD_RETURN_ERROR); 149 } 150 oo = &s->options; 151 } 152 } else { 153 cmdq_error(cmdq, "unknown table"); 154 return (CMD_RETURN_ERROR); 155 } 156 157 /* Unset or set the option. */ 158 if (args_has(args, 'u')) { 159 if (cmd_set_option_unset(self, cmdq, oe, oo, valstr) != 0) 160 return (CMD_RETURN_ERROR); 161 } else { 162 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) { 163 if (!args_has(args, 'q')) 164 cmdq_print(cmdq, "already set: %s", optstr); 165 return (CMD_RETURN_NORMAL); 166 } 167 if (cmd_set_option_set(self, cmdq, oe, oo, valstr) != 0) 168 return (CMD_RETURN_ERROR); 169 } 170 171 /* Start or stop timers when automatic-rename changed. */ 172 if (strcmp (oe->name, "automatic-rename") == 0) { 173 for (i = 0; i < ARRAY_LENGTH(&windows); i++) { 174 if ((w = ARRAY_ITEM(&windows, i)) == NULL) 175 continue; 176 if (options_get_number(&w->options, "automatic-rename")) 177 queue_window_name(w); 178 else if (event_initialized(&w->name_timer)) 179 evtimer_del(&w->name_timer); 180 } 181 } 182 183 /* Update sizes and redraw. May not need it but meh. */ 184 recalculate_sizes(); 185 for (i = 0; i < ARRAY_LENGTH(&clients); i++) { 186 c = ARRAY_ITEM(&clients, i); 187 if (c != NULL && c->session != NULL) 188 server_redraw_client(c); 189 } 190 191 return (CMD_RETURN_NORMAL); 192 } 193 194 /* Set user option. */ 195 enum cmd_retval 196 cmd_set_option_user(struct cmd *self, struct cmd_q *cmdq, const char* optstr, 197 const char *valstr) 198 { 199 struct args *args = self->args; 200 struct session *s; 201 struct winlink *wl; 202 struct options *oo; 203 204 if (args_has(args, 's')) 205 oo = &global_options; 206 else if (args_has(self->args, 'w') || 207 self->entry == &cmd_set_window_option_entry) { 208 if (args_has(self->args, 'g')) 209 oo = &global_w_options; 210 else { 211 wl = cmd_find_window(cmdq, args_get(args, 't'), NULL); 212 if (wl == NULL) 213 return (CMD_RETURN_ERROR); 214 oo = &wl->window->options; 215 } 216 } else { 217 if (args_has(self->args, 'g')) 218 oo = &global_s_options; 219 else { 220 s = cmd_find_session(cmdq, args_get(args, 't'), 0); 221 if (s == NULL) 222 return (CMD_RETURN_ERROR); 223 oo = &s->options; 224 } 225 } 226 227 if (args_has(args, 'u')) { 228 if (options_find1(oo, optstr) == NULL) { 229 cmdq_error(cmdq, "unknown option: %s", optstr); 230 return (CMD_RETURN_ERROR); 231 } 232 if (valstr != NULL) { 233 cmdq_error(cmdq, "value passed to unset option: %s", 234 optstr); 235 return (CMD_RETURN_ERROR); 236 } 237 options_remove(oo, optstr); 238 } else { 239 if (valstr == NULL) { 240 cmdq_error(cmdq, "empty value"); 241 return (CMD_RETURN_ERROR); 242 } 243 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) { 244 if (!args_has(args, 'q')) 245 cmdq_print(cmdq, "already set: %s", optstr); 246 return (CMD_RETURN_NORMAL); 247 } 248 options_set_string(oo, optstr, "%s", valstr); 249 if (!args_has(args, 'q')) { 250 cmdq_info(cmdq, "set option: %s -> %s", optstr, 251 valstr); 252 } 253 } 254 return (CMD_RETURN_NORMAL); 255 } 256 257 258 /* Unset an option. */ 259 int 260 cmd_set_option_unset(struct cmd *self, struct cmd_q *cmdq, 261 const struct options_table_entry *oe, struct options *oo, const char *value) 262 { 263 struct args *args = self->args; 264 265 if (args_has(args, 'g')) { 266 cmdq_error(cmdq, "can't unset global option: %s", oe->name); 267 return (-1); 268 } 269 if (value != NULL) { 270 cmdq_error(cmdq, "value passed to unset option: %s", oe->name); 271 return (-1); 272 } 273 274 options_remove(oo, oe->name); 275 if (!args_has(args, 'q')) 276 cmdq_info(cmdq, "unset option: %s", oe->name); 277 return (0); 278 } 279 280 /* Set an option. */ 281 int 282 cmd_set_option_set(struct cmd *self, struct cmd_q *cmdq, 283 const struct options_table_entry *oe, struct options *oo, const char *value) 284 { 285 struct args *args = self->args; 286 struct options_entry *o; 287 const char *s; 288 289 if (oe->type != OPTIONS_TABLE_FLAG && value == NULL) { 290 cmdq_error(cmdq, "empty value"); 291 return (-1); 292 } 293 294 o = NULL; 295 switch (oe->type) { 296 case OPTIONS_TABLE_STRING: 297 o = cmd_set_option_string(self, cmdq, oe, oo, value); 298 break; 299 case OPTIONS_TABLE_NUMBER: 300 o = cmd_set_option_number(self, cmdq, oe, oo, value); 301 break; 302 case OPTIONS_TABLE_KEY: 303 o = cmd_set_option_key(self, cmdq, oe, oo, value); 304 break; 305 case OPTIONS_TABLE_COLOUR: 306 o = cmd_set_option_colour(self, cmdq, oe, oo, value); 307 break; 308 case OPTIONS_TABLE_ATTRIBUTES: 309 o = cmd_set_option_attributes(self, cmdq, oe, oo, value); 310 break; 311 case OPTIONS_TABLE_FLAG: 312 o = cmd_set_option_flag(self, cmdq, oe, oo, value); 313 break; 314 case OPTIONS_TABLE_CHOICE: 315 o = cmd_set_option_choice(self, cmdq, oe, oo, value); 316 break; 317 } 318 if (o == NULL) 319 return (-1); 320 321 s = options_table_print_entry(oe, o, 0); 322 if (!args_has(args, 'q')) 323 cmdq_info(cmdq, "set option: %s -> %s", oe->name, s); 324 return (0); 325 } 326 327 /* Set a string option. */ 328 struct options_entry * 329 cmd_set_option_string(struct cmd *self, unused struct cmd_q *cmdq, 330 const struct options_table_entry *oe, struct options *oo, const char *value) 331 { 332 struct args *args = self->args; 333 struct options_entry *o; 334 char *oldval, *newval; 335 336 if (args_has(args, 'a')) { 337 oldval = options_get_string(oo, oe->name); 338 xasprintf(&newval, "%s%s", oldval, value); 339 } else 340 newval = xstrdup(value); 341 342 o = options_set_string(oo, oe->name, "%s", newval); 343 344 free(newval); 345 return (o); 346 } 347 348 /* Set a number option. */ 349 struct options_entry * 350 cmd_set_option_number(unused struct cmd *self, struct cmd_q *cmdq, 351 const struct options_table_entry *oe, struct options *oo, const char *value) 352 { 353 long long ll; 354 const char *errstr; 355 356 ll = strtonum(value, oe->minimum, oe->maximum, &errstr); 357 if (errstr != NULL) { 358 cmdq_error(cmdq, "value is %s: %s", errstr, value); 359 return (NULL); 360 } 361 362 return (options_set_number(oo, oe->name, ll)); 363 } 364 365 /* Set a key option. */ 366 struct options_entry * 367 cmd_set_option_key(unused struct cmd *self, struct cmd_q *cmdq, 368 const struct options_table_entry *oe, struct options *oo, const char *value) 369 { 370 int key; 371 372 if ((key = key_string_lookup_string(value)) == KEYC_NONE) { 373 cmdq_error(cmdq, "bad key: %s", value); 374 return (NULL); 375 } 376 377 return (options_set_number(oo, oe->name, key)); 378 } 379 380 /* Set a colour option. */ 381 struct options_entry * 382 cmd_set_option_colour(unused struct cmd *self, struct cmd_q *cmdq, 383 const struct options_table_entry *oe, struct options *oo, const char *value) 384 { 385 int colour; 386 387 if ((colour = colour_fromstring(value)) == -1) { 388 cmdq_error(cmdq, "bad colour: %s", value); 389 return (NULL); 390 } 391 392 return (options_set_number(oo, oe->name, colour)); 393 } 394 395 /* Set an attributes option. */ 396 struct options_entry * 397 cmd_set_option_attributes(unused struct cmd *self, struct cmd_q *cmdq, 398 const struct options_table_entry *oe, struct options *oo, const char *value) 399 { 400 int attr; 401 402 if ((attr = attributes_fromstring(value)) == -1) { 403 cmdq_error(cmdq, "bad attributes: %s", value); 404 return (NULL); 405 } 406 407 return (options_set_number(oo, oe->name, attr)); 408 } 409 410 /* Set a flag option. */ 411 struct options_entry * 412 cmd_set_option_flag(unused struct cmd *self, struct cmd_q *cmdq, 413 const struct options_table_entry *oe, struct options *oo, const char *value) 414 { 415 int flag; 416 417 if (value == NULL || *value == '\0') 418 flag = !options_get_number(oo, oe->name); 419 else { 420 if ((value[0] == '1' && value[1] == '\0') || 421 strcasecmp(value, "on") == 0 || 422 strcasecmp(value, "yes") == 0) 423 flag = 1; 424 else if ((value[0] == '0' && value[1] == '\0') || 425 strcasecmp(value, "off") == 0 || 426 strcasecmp(value, "no") == 0) 427 flag = 0; 428 else { 429 cmdq_error(cmdq, "bad value: %s", value); 430 return (NULL); 431 } 432 } 433 434 return (options_set_number(oo, oe->name, flag)); 435 } 436 437 /* Set a choice option. */ 438 struct options_entry * 439 cmd_set_option_choice(unused struct cmd *self, struct cmd_q *cmdq, 440 const struct options_table_entry *oe, struct options *oo, 441 const char *value) 442 { 443 const char **choicep; 444 int n, choice = -1; 445 446 n = 0; 447 for (choicep = oe->choices; *choicep != NULL; choicep++) { 448 n++; 449 if (strncmp(*choicep, value, strlen(value)) != 0) 450 continue; 451 452 if (choice != -1) { 453 cmdq_error(cmdq, "ambiguous value: %s", value); 454 return (NULL); 455 } 456 choice = n - 1; 457 } 458 if (choice == -1) { 459 cmdq_error(cmdq, "unknown value: %s", value); 460 return (NULL); 461 } 462 463 return (options_set_number(oo, oe->name, choice)); 464 } 465