1 /* $OpenBSD: cmd-queue.c,v 1.99 2020/07/27 08:03:10 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2013 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 <ctype.h> 22 #include <stdlib.h> 23 #include <string.h> 24 #include <time.h> 25 26 #include "tmux.h" 27 28 /* Command queue flags. */ 29 #define CMDQ_FIRED 0x1 30 #define CMDQ_WAITING 0x2 31 32 /* Command queue item type. */ 33 enum cmdq_type { 34 CMDQ_COMMAND, 35 CMDQ_CALLBACK, 36 }; 37 38 /* Command queue item. */ 39 struct cmdq_item { 40 char *name; 41 struct cmdq_list *queue; 42 struct cmdq_item *next; 43 44 struct client *client; 45 struct client *target_client; 46 47 enum cmdq_type type; 48 u_int group; 49 50 u_int number; 51 time_t time; 52 53 int flags; 54 55 struct cmdq_state *state; 56 struct cmd_find_state source; 57 struct cmd_find_state target; 58 59 struct cmd_list *cmdlist; 60 struct cmd *cmd; 61 62 cmdq_cb cb; 63 void *data; 64 65 TAILQ_ENTRY(cmdq_item) entry; 66 }; 67 TAILQ_HEAD(cmdq_item_list, cmdq_item); 68 69 /* 70 * Command queue state. This is the context for commands on the command queue. 71 * It holds information about how the commands were fired (the key and flags), 72 * any additional formats for the commands, and the current default target. 73 * Multiple commands can share the same state and a command may update the 74 * default target. 75 */ 76 struct cmdq_state { 77 int references; 78 int flags; 79 80 struct format_tree *formats; 81 82 struct key_event event; 83 struct cmd_find_state current; 84 }; 85 86 /* Command queue. */ 87 struct cmdq_list { 88 struct cmdq_item *item; 89 struct cmdq_item_list list; 90 }; 91 92 /* Get command queue name. */ 93 static const char * 94 cmdq_name(struct client *c) 95 { 96 static char s[256]; 97 98 if (c == NULL) 99 return ("<global>"); 100 if (c->name != NULL) 101 xsnprintf(s, sizeof s, "<%s>", c->name); 102 else 103 xsnprintf(s, sizeof s, "<%p>", c); 104 return (s); 105 } 106 107 /* Get command queue from client. */ 108 static struct cmdq_list * 109 cmdq_get(struct client *c) 110 { 111 static struct cmdq_list *global_queue; 112 113 if (c == NULL) { 114 if (global_queue == NULL) 115 global_queue = cmdq_new(); 116 return (global_queue); 117 } 118 return (c->queue); 119 } 120 121 /* Create a queue. */ 122 struct cmdq_list * 123 cmdq_new(void) 124 { 125 struct cmdq_list *queue; 126 127 queue = xcalloc (1, sizeof *queue); 128 TAILQ_INIT (&queue->list); 129 return (queue); 130 } 131 132 /* Free a queue. */ 133 void 134 cmdq_free(struct cmdq_list *queue) 135 { 136 if (!TAILQ_EMPTY(&queue->list)) 137 fatalx("queue not empty"); 138 free(queue); 139 } 140 141 /* Get item name. */ 142 const char * 143 cmdq_get_name(struct cmdq_item *item) 144 { 145 return (item->name); 146 } 147 148 /* Get item client. */ 149 struct client * 150 cmdq_get_client(struct cmdq_item *item) 151 { 152 return (item->client); 153 } 154 155 /* Get item target client. */ 156 struct client * 157 cmdq_get_target_client(struct cmdq_item *item) 158 { 159 return (item->target_client); 160 } 161 162 /* Get item state. */ 163 struct cmdq_state * 164 cmdq_get_state(struct cmdq_item *item) 165 { 166 return (item->state); 167 } 168 169 /* Get item target. */ 170 struct cmd_find_state * 171 cmdq_get_target(struct cmdq_item *item) 172 { 173 return (&item->target); 174 } 175 176 /* Get item source. */ 177 struct cmd_find_state * 178 cmdq_get_source(struct cmdq_item *item) 179 { 180 return (&item->source); 181 } 182 183 /* Get state event. */ 184 struct key_event * 185 cmdq_get_event(struct cmdq_item *item) 186 { 187 return (&item->state->event); 188 } 189 190 /* Get state current target. */ 191 struct cmd_find_state * 192 cmdq_get_current(struct cmdq_item *item) 193 { 194 return (&item->state->current); 195 } 196 197 /* Get state flags. */ 198 int 199 cmdq_get_flags(struct cmdq_item *item) 200 { 201 return (item->state->flags); 202 } 203 204 /* Create a new state. */ 205 struct cmdq_state * 206 cmdq_new_state(struct cmd_find_state *current, struct key_event *event, 207 int flags) 208 { 209 struct cmdq_state *state; 210 211 state = xcalloc(1, sizeof *state); 212 state->references = 1; 213 state->flags = flags; 214 215 if (event != NULL) 216 memcpy(&state->event, event, sizeof state->event); 217 else 218 state->event.key = KEYC_NONE; 219 if (current != NULL && cmd_find_valid_state(current)) 220 cmd_find_copy_state(&state->current, current); 221 else 222 cmd_find_clear_state(&state->current, 0); 223 224 return (state); 225 } 226 227 /* Add a reference to a state. */ 228 struct cmdq_state * 229 cmdq_link_state(struct cmdq_state *state) 230 { 231 state->references++; 232 return (state); 233 } 234 235 /* Make a copy of a state. */ 236 struct cmdq_state * 237 cmdq_copy_state(struct cmdq_state *state) 238 { 239 return (cmdq_new_state(&state->current, &state->event, state->flags)); 240 } 241 242 /* Free a state. */ 243 void 244 cmdq_free_state(struct cmdq_state *state) 245 { 246 if (--state->references != 0) 247 return; 248 249 if (state->formats != NULL) 250 format_free(state->formats); 251 free(state); 252 } 253 254 /* Add a format to command queue. */ 255 void 256 cmdq_add_format(struct cmdq_state *state, const char *key, const char *fmt, ...) 257 { 258 va_list ap; 259 char *value; 260 261 va_start(ap, fmt); 262 xvasprintf(&value, fmt, ap); 263 va_end(ap); 264 265 if (state->formats == NULL) 266 state->formats = format_create(NULL, NULL, FORMAT_NONE, 0); 267 format_add(state->formats, key, "%s", value); 268 269 free(value); 270 } 271 272 /* Merge formats from item. */ 273 void 274 cmdq_merge_formats(struct cmdq_item *item, struct format_tree *ft) 275 { 276 const struct cmd_entry *entry; 277 278 if (item->cmd != NULL) { 279 entry = cmd_get_entry (item->cmd); 280 format_add(ft, "command", "%s", entry->name); 281 } 282 if (item->state->formats != NULL) 283 format_merge(ft, item->state->formats); 284 } 285 286 /* Append an item. */ 287 struct cmdq_item * 288 cmdq_append(struct client *c, struct cmdq_item *item) 289 { 290 struct cmdq_list *queue = cmdq_get(c); 291 struct cmdq_item *next; 292 293 do { 294 next = item->next; 295 item->next = NULL; 296 297 if (c != NULL) 298 c->references++; 299 item->client = c; 300 301 item->queue = queue; 302 TAILQ_INSERT_TAIL(&queue->list, item, entry); 303 log_debug("%s %s: %s", __func__, cmdq_name(c), item->name); 304 305 item = next; 306 } while (item != NULL); 307 return (TAILQ_LAST(&queue->list, cmdq_item_list)); 308 } 309 310 /* Insert an item. */ 311 struct cmdq_item * 312 cmdq_insert_after(struct cmdq_item *after, struct cmdq_item *item) 313 { 314 struct client *c = after->client; 315 struct cmdq_list *queue = after->queue; 316 struct cmdq_item *next; 317 318 do { 319 next = item->next; 320 item->next = after->next; 321 after->next = item; 322 323 if (c != NULL) 324 c->references++; 325 item->client = c; 326 327 item->queue = queue; 328 TAILQ_INSERT_AFTER(&queue->list, after, item, entry); 329 log_debug("%s %s: %s after %s", __func__, cmdq_name(c), 330 item->name, after->name); 331 332 after = item; 333 item = next; 334 } while (item != NULL); 335 return (after); 336 } 337 338 /* Insert a hook. */ 339 void 340 cmdq_insert_hook(struct session *s, struct cmdq_item *item, 341 struct cmd_find_state *current, const char *fmt, ...) 342 { 343 struct cmdq_state *state = item->state; 344 struct cmd *cmd = item->cmd; 345 struct args *args = cmd_get_args(cmd); 346 struct args_entry *entryp; 347 struct args_value *valuep; 348 struct options *oo; 349 va_list ap; 350 char *name, tmp[32], flag, *arguments; 351 int i; 352 const char *value; 353 struct cmdq_item *new_item; 354 struct cmdq_state *new_state; 355 struct options_entry *o; 356 struct options_array_item *a; 357 struct cmd_list *cmdlist; 358 359 if (item->state->flags & CMDQ_STATE_NOHOOKS) 360 return; 361 if (s == NULL) 362 oo = global_s_options; 363 else 364 oo = s->options; 365 366 va_start(ap, fmt); 367 xvasprintf(&name, fmt, ap); 368 va_end(ap); 369 370 o = options_get(oo, name); 371 if (o == NULL) { 372 free(name); 373 return; 374 } 375 log_debug("running hook %s (parent %p)", name, item); 376 377 /* 378 * The hooks get a new state because they should not update the current 379 * target or formats for any subsequent commands. 380 */ 381 new_state = cmdq_new_state(current, &state->event, CMDQ_STATE_NOHOOKS); 382 cmdq_add_format(new_state, "hook", "%s", name); 383 384 arguments = args_print(args); 385 cmdq_add_format(new_state, "hook_arguments", "%s", arguments); 386 free(arguments); 387 388 for (i = 0; i < args->argc; i++) { 389 xsnprintf(tmp, sizeof tmp, "hook_argument_%d", i); 390 cmdq_add_format(new_state, tmp, "%s", args->argv[i]); 391 } 392 flag = args_first(args, &entryp); 393 while (flag != 0) { 394 value = args_get(args, flag); 395 if (value == NULL) { 396 xsnprintf(tmp, sizeof tmp, "hook_flag_%c", flag); 397 cmdq_add_format(new_state, tmp, "1"); 398 } else { 399 xsnprintf(tmp, sizeof tmp, "hook_flag_%c", flag); 400 cmdq_add_format(new_state, tmp, "%s", value); 401 } 402 403 i = 0; 404 value = args_first_value(args, flag, &valuep); 405 while (value != NULL) { 406 xsnprintf(tmp, sizeof tmp, "hook_flag_%c_%d", flag, i); 407 cmdq_add_format(new_state, tmp, "%s", value); 408 i++; 409 value = args_next_value(&valuep); 410 } 411 412 flag = args_next(&entryp); 413 } 414 415 a = options_array_first(o); 416 while (a != NULL) { 417 cmdlist = options_array_item_value(a)->cmdlist; 418 if (cmdlist != NULL) { 419 new_item = cmdq_get_command(cmdlist, new_state); 420 if (item != NULL) 421 item = cmdq_insert_after(item, new_item); 422 else 423 item = cmdq_append(NULL, new_item); 424 } 425 a = options_array_next(a); 426 } 427 428 cmdq_free_state(new_state); 429 free(name); 430 } 431 432 /* Continue processing command queue. */ 433 void 434 cmdq_continue(struct cmdq_item *item) 435 { 436 item->flags &= ~CMDQ_WAITING; 437 } 438 439 /* Remove an item. */ 440 static void 441 cmdq_remove(struct cmdq_item *item) 442 { 443 if (item->client != NULL) 444 server_client_unref(item->client); 445 if (item->cmdlist != NULL) 446 cmd_list_free(item->cmdlist); 447 cmdq_free_state(item->state); 448 449 TAILQ_REMOVE(&item->queue->list, item, entry); 450 451 free(item->name); 452 free(item); 453 } 454 455 /* Remove all subsequent items that match this item's group. */ 456 static void 457 cmdq_remove_group(struct cmdq_item *item) 458 { 459 struct cmdq_item *this, *next; 460 461 if (item->group == 0) 462 return; 463 this = TAILQ_NEXT(item, entry); 464 while (this != NULL) { 465 next = TAILQ_NEXT(this, entry); 466 if (this->group == item->group) 467 cmdq_remove(this); 468 this = next; 469 } 470 } 471 472 /* Get a command for the command queue. */ 473 struct cmdq_item * 474 cmdq_get_command(struct cmd_list *cmdlist, struct cmdq_state *state) 475 { 476 struct cmdq_item *item, *first = NULL, *last = NULL; 477 struct cmd *cmd; 478 const struct cmd_entry *entry; 479 int created = 0; 480 481 if (state == NULL) { 482 state = cmdq_new_state(NULL, NULL, 0); 483 created = 1; 484 } 485 486 cmd = cmd_list_first(cmdlist); 487 while (cmd != NULL) { 488 entry = cmd_get_entry(cmd); 489 490 item = xcalloc(1, sizeof *item); 491 xasprintf(&item->name, "[%s/%p]", entry->name, item); 492 item->type = CMDQ_COMMAND; 493 494 item->group = cmd_get_group(cmd); 495 item->state = cmdq_link_state(state); 496 497 item->cmdlist = cmdlist; 498 item->cmd = cmd; 499 500 cmdlist->references++; 501 log_debug("%s: %s group %u", __func__, item->name, item->group); 502 503 if (first == NULL) 504 first = item; 505 if (last != NULL) 506 last->next = item; 507 last = item; 508 509 cmd = cmd_list_next(cmd); 510 } 511 512 if (created) 513 cmdq_free_state(state); 514 return (first); 515 } 516 517 /* Fill in flag for a command. */ 518 static enum cmd_retval 519 cmdq_find_flag(struct cmdq_item *item, struct cmd_find_state *fs, 520 const struct cmd_entry_flag *flag) 521 { 522 const char *value; 523 524 if (flag->flag == 0) { 525 cmd_find_from_client(fs, item->target_client, 0); 526 return (CMD_RETURN_NORMAL); 527 } 528 529 value = args_get(cmd_get_args(item->cmd), flag->flag); 530 if (cmd_find_target(fs, item, value, flag->type, flag->flags) != 0) { 531 cmd_find_clear_state(fs, 0); 532 return (CMD_RETURN_ERROR); 533 } 534 return (CMD_RETURN_NORMAL); 535 } 536 537 /* Add message with command. */ 538 static void 539 cmdq_add_message(struct cmdq_item *item) 540 { 541 struct client *c = item->client; 542 struct cmdq_state *state = item->state; 543 const char *name, *key; 544 char *tmp; 545 546 tmp = cmd_print(item->cmd); 547 if (c != NULL) { 548 name = c->name; 549 if (c->session != NULL && state->event.key != KEYC_NONE) { 550 key = key_string_lookup_key(state->event.key, 0); 551 server_add_message("%s key %s: %s", name, key, tmp); 552 } else 553 server_add_message("%s command: %s", name, tmp); 554 } else 555 server_add_message("command: %s", tmp); 556 free(tmp); 557 } 558 559 /* Fire command on command queue. */ 560 static enum cmd_retval 561 cmdq_fire_command(struct cmdq_item *item) 562 { 563 const char *name = cmdq_name(item->client); 564 struct cmdq_state *state = item->state; 565 struct cmd *cmd = item->cmd; 566 struct args *args = cmd_get_args(cmd); 567 const struct cmd_entry *entry = cmd_get_entry(cmd); 568 struct client *tc, *saved = item->client; 569 enum cmd_retval retval; 570 struct cmd_find_state *fsp, fs; 571 int flags, quiet = 0; 572 char *tmp; 573 574 if (cfg_finished) 575 cmdq_add_message(item); 576 if (log_get_level() > 1) { 577 tmp = cmd_print(cmd); 578 log_debug("%s %s: (%u) %s", __func__, name, item->group, tmp); 579 free(tmp); 580 } 581 582 flags = !!(state->flags & CMDQ_STATE_CONTROL); 583 cmdq_guard(item, "begin", flags); 584 585 if (item->client == NULL) 586 item->client = cmd_find_client(item, NULL, 1); 587 588 if (entry->flags & CMD_CLIENT_CANFAIL) 589 quiet = 1; 590 if (entry->flags & CMD_CLIENT_CFLAG) { 591 tc = cmd_find_client(item, args_get(args, 'c'), quiet); 592 if (tc == NULL && !quiet) { 593 retval = CMD_RETURN_ERROR; 594 goto out; 595 } 596 } else if (entry->flags & CMD_CLIENT_TFLAG) { 597 tc = cmd_find_client(item, args_get(args, 't'), quiet); 598 if (tc == NULL && !quiet) { 599 retval = CMD_RETURN_ERROR; 600 goto out; 601 } 602 } else 603 tc = cmd_find_client(item, NULL, 1); 604 item->target_client = tc; 605 606 retval = cmdq_find_flag(item, &item->source, &entry->source); 607 if (retval == CMD_RETURN_ERROR) 608 goto out; 609 retval = cmdq_find_flag(item, &item->target, &entry->target); 610 if (retval == CMD_RETURN_ERROR) 611 goto out; 612 613 retval = entry->exec(cmd, item); 614 if (retval == CMD_RETURN_ERROR) 615 goto out; 616 617 if (entry->flags & CMD_AFTERHOOK) { 618 if (cmd_find_valid_state(&item->target)) 619 fsp = &item->target; 620 else if (cmd_find_valid_state(&item->state->current)) 621 fsp = &item->state->current; 622 else if (cmd_find_from_client(&fs, item->client, 0) == 0) 623 fsp = &fs; 624 else 625 goto out; 626 cmdq_insert_hook(fsp->s, item, fsp, "after-%s", entry->name); 627 } 628 629 out: 630 item->client = saved; 631 if (retval == CMD_RETURN_ERROR) 632 cmdq_guard(item, "error", flags); 633 else 634 cmdq_guard(item, "end", flags); 635 return (retval); 636 } 637 638 /* Get a callback for the command queue. */ 639 struct cmdq_item * 640 cmdq_get_callback1(const char *name, cmdq_cb cb, void *data) 641 { 642 struct cmdq_item *item; 643 644 item = xcalloc(1, sizeof *item); 645 xasprintf(&item->name, "[%s/%p]", name, item); 646 item->type = CMDQ_CALLBACK; 647 648 item->group = 0; 649 item->state = cmdq_new_state(NULL, NULL, 0); 650 651 item->cb = cb; 652 item->data = data; 653 654 return (item); 655 } 656 657 /* Generic error callback. */ 658 static enum cmd_retval 659 cmdq_error_callback(struct cmdq_item *item, void *data) 660 { 661 char *error = data; 662 663 cmdq_error(item, "%s", error); 664 free(error); 665 666 return (CMD_RETURN_NORMAL); 667 } 668 669 /* Get an error callback for the command queue. */ 670 struct cmdq_item * 671 cmdq_get_error(const char *error) 672 { 673 return (cmdq_get_callback(cmdq_error_callback, xstrdup(error))); 674 } 675 676 /* Fire callback on callback queue. */ 677 static enum cmd_retval 678 cmdq_fire_callback(struct cmdq_item *item) 679 { 680 return (item->cb(item, item->data)); 681 } 682 683 /* Process next item on command queue. */ 684 u_int 685 cmdq_next(struct client *c) 686 { 687 struct cmdq_list *queue = cmdq_get(c); 688 const char *name = cmdq_name(c); 689 struct cmdq_item *item; 690 enum cmd_retval retval; 691 u_int items = 0; 692 static u_int number; 693 694 if (TAILQ_EMPTY(&queue->list)) { 695 log_debug("%s %s: empty", __func__, name); 696 return (0); 697 } 698 if (TAILQ_FIRST(&queue->list)->flags & CMDQ_WAITING) { 699 log_debug("%s %s: waiting", __func__, name); 700 return (0); 701 } 702 703 log_debug("%s %s: enter", __func__, name); 704 for (;;) { 705 item = queue->item = TAILQ_FIRST(&queue->list); 706 if (item == NULL) 707 break; 708 log_debug("%s %s: %s (%d), flags %x", __func__, name, 709 item->name, item->type, item->flags); 710 711 /* 712 * Any item with the waiting flag set waits until an external 713 * event clears the flag (for example, a job - look at 714 * run-shell). 715 */ 716 if (item->flags & CMDQ_WAITING) 717 goto waiting; 718 719 /* 720 * Items are only fired once, once the fired flag is set, a 721 * waiting flag can only be cleared by an external event. 722 */ 723 if (~item->flags & CMDQ_FIRED) { 724 item->time = time(NULL); 725 item->number = ++number; 726 727 switch (item->type) { 728 case CMDQ_COMMAND: 729 retval = cmdq_fire_command(item); 730 731 /* 732 * If a command returns an error, remove any 733 * subsequent commands in the same group. 734 */ 735 if (retval == CMD_RETURN_ERROR) 736 cmdq_remove_group(item); 737 break; 738 case CMDQ_CALLBACK: 739 retval = cmdq_fire_callback(item); 740 break; 741 default: 742 retval = CMD_RETURN_ERROR; 743 break; 744 } 745 item->flags |= CMDQ_FIRED; 746 747 if (retval == CMD_RETURN_WAIT) { 748 item->flags |= CMDQ_WAITING; 749 goto waiting; 750 } 751 items++; 752 } 753 cmdq_remove(item); 754 } 755 queue->item = NULL; 756 757 log_debug("%s %s: exit (empty)", __func__, name); 758 return (items); 759 760 waiting: 761 log_debug("%s %s: exit (wait)", __func__, name); 762 return (items); 763 } 764 765 /* Get running item if any. */ 766 struct cmdq_item * 767 cmdq_running(struct client *c) 768 { 769 struct cmdq_list *queue = cmdq_get(c); 770 771 return (queue->item); 772 } 773 774 /* Print a guard line. */ 775 void 776 cmdq_guard(struct cmdq_item *item, const char *guard, int flags) 777 { 778 struct client *c = item->client; 779 long t = item->time; 780 u_int number = item->number; 781 782 if (c != NULL && (c->flags & CLIENT_CONTROL)) 783 control_write(c, "%%%s %ld %u %d", guard, t, number, flags); 784 } 785 786 /* Show message from command. */ 787 void 788 cmdq_print(struct cmdq_item *item, const char *fmt, ...) 789 { 790 struct client *c = item->client; 791 struct window_pane *wp; 792 struct window_mode_entry *wme; 793 va_list ap; 794 char *tmp, *msg; 795 796 va_start(ap, fmt); 797 xvasprintf(&msg, fmt, ap); 798 va_end(ap); 799 800 log_debug("%s: %s", __func__, msg); 801 802 if (c == NULL) 803 /* nothing */; 804 else if (c->session == NULL || (c->flags & CLIENT_CONTROL)) { 805 if (~c->flags & CLIENT_UTF8) { 806 tmp = msg; 807 msg = utf8_sanitize(tmp); 808 free(tmp); 809 } 810 if (c->flags & CLIENT_CONTROL) 811 control_write(c, "%s", msg); 812 else 813 file_print(c, "%s\n", msg); 814 } else { 815 wp = server_client_get_pane(c); 816 wme = TAILQ_FIRST(&wp->modes); 817 if (wme == NULL || wme->mode != &window_view_mode) { 818 window_pane_set_mode(wp, NULL, &window_view_mode, NULL, 819 NULL); 820 } 821 window_copy_add(wp, "%s", msg); 822 } 823 824 free(msg); 825 } 826 827 /* Show error from command. */ 828 void 829 cmdq_error(struct cmdq_item *item, const char *fmt, ...) 830 { 831 struct client *c = item->client; 832 struct cmd *cmd = item->cmd; 833 va_list ap; 834 char *msg, *tmp; 835 const char *file; 836 u_int line; 837 838 va_start(ap, fmt); 839 xvasprintf(&msg, fmt, ap); 840 va_end(ap); 841 842 log_debug("%s: %s", __func__, msg); 843 844 if (c == NULL) { 845 cmd_get_source(cmd, &file, &line); 846 cfg_add_cause("%s:%u: %s", file, line, msg); 847 } else if (c->session == NULL || (c->flags & CLIENT_CONTROL)) { 848 server_add_message("%s message: %s", c->name, msg); 849 if (~c->flags & CLIENT_UTF8) { 850 tmp = msg; 851 msg = utf8_sanitize(tmp); 852 free(tmp); 853 } 854 if (c->flags & CLIENT_CONTROL) 855 control_write(c, "%s", msg); 856 else 857 file_error(c, "%s\n", msg); 858 c->retval = 1; 859 } else { 860 *msg = toupper((u_char) *msg); 861 status_message_set(c, -1, 1, "%s", msg); 862 } 863 864 free(msg); 865 } 866