apps/irssi/src/core/expandos.c

   1 /*
   2  expandos.c : irssi
   3
   4     Copyright (C) 2000 Timo Sirainen
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21 #include "module.h"
  22 #include "modules.h"
  23 #include "signals.h"
  24 #include "expandos.h"
  25 #include "settings.h"
  26 #include "commands.h"
  27 #include "misc.h"
  28 #include "irssi-version.h"
  29
  30 #include "servers.h"
  31 #include "channels.h"
  32 #include "queries.h"
  33 #include "window-item-def.h"
  34
  35 #ifdef HAVE_SYS_UTSNAME_H
  36 #  include <sys/utsname.h>
  37 #endif
  38
  39 #define MAX_EXPANDO_SIGNALS 10
  40
  41 typedef struct {
  42         EXPANDO_FUNC func;
  43
  44         int signals;
  45         int signal_ids[MAX_EXPANDO_SIGNALS];
  46         int signal_args[MAX_EXPANDO_SIGNALS];
  47 } EXPANDO_REC;
  48
  49 static int timer_tag;
  50
  51 static EXPANDO_REC *char_expandos[255];
  52 static GHashTable *expandos;
  53 static time_t client_start_time;
  54 static char *last_sent_msg, *last_sent_msg_body;
  55 static char *last_privmsg_from, *last_public_from;
  56 static char *sysname, *sysrelease, *sysarch;
  57
  58 static const char *timestamp_format;
  59 static int timestamp_seconds;
  60 static time_t last_timestamp;
  61
  62 #define CHAR_EXPANDO(chr) \
  63         (char_expandos[(int) (unsigned char) chr])
  64
  65 /* Create expando - overrides any existing ones. */
  66 void expando_create(const char *key, EXPANDO_FUNC func, ...)
  67 {
  68         EXPANDO_REC *rec;
  69         const char *signal;
  70         va_list va;
  71
  72         g_return_if_fail(key != NULL || *key == '\0');
  73         g_return_if_fail(func != NULL);
  74
  75         if (key[1] != '\0')
  76                 rec = g_hash_table_lookup(expandos, key);
  77         else {
  78                 /* single character expando */
  79                 rec = CHAR_EXPANDO(*key);
  80         }
  81
  82         if (rec != NULL)
  83                 rec->signals = 0;
  84         else {
  85                 rec = g_new0(EXPANDO_REC, 1);
  86                 if (key[1] != '\0')
  87                         g_hash_table_insert(expandos, g_strdup(key), rec);
  88                 else
  89                         char_expandos[(int) (unsigned char) *key] = rec;
  90         }
  91
  92         rec->func = func;
  93
  94         va_start(va, func);
  95         while ((signal = (const char *) va_arg(va, const char *)) != NULL)
  96                expando_add_signal(key, signal, (int) va_arg(va, int));
  97         va_end(va);
  98 }
  99
 100 static EXPANDO_REC *expando_find(const char *key)
 101 {
 102         if (key[1] != '\0')
 103                 return g_hash_table_lookup(expandos, key);
 104         else
 105                 return CHAR_EXPANDO(*key);
 106 }
 107
 108 /* Add new signal to expando */
 109 void expando_add_signal(const char *key, const char *signal, ExpandoArg arg)
 110 {
 111         EXPANDO_REC *rec;
 112
 113         g_return_if_fail(key != NULL);
 114         g_return_if_fail(signal != NULL);
 115
 116         rec = expando_find(key);
 117         g_return_if_fail(rec != NULL);
 118
 119         if (arg == EXPANDO_NEVER) {
 120                 /* expando changes never */
 121                 rec->signals = -1;
 122         } else if (rec->signals < MAX_EXPANDO_SIGNALS) {
 123                 g_return_if_fail(rec->signals != -1);
 124
 125                 rec->signal_ids[rec->signals] = signal_get_uniq_id(signal);
 126                 rec->signal_args[rec->signals] = arg;
 127                 rec->signals++;
 128         }
 129 }
 130
 131 /* Destroy expando */
 132 void expando_destroy(const char *key, EXPANDO_FUNC func)
 133 {
 134         gpointer origkey;
 135         EXPANDO_REC *rec;
 136
 137         g_return_if_fail(key != NULL || *key == '\0');
 138         g_return_if_fail(func != NULL);
 139
 140         if (key[1] == '\0') {
 141                 /* single character expando */
 142                 rec = CHAR_EXPANDO(*key);
 143                 if (rec != NULL && rec->func == func) {
 144                         char_expandos[(int) (unsigned char) *key] = NULL;
 145                         g_free(rec);
 146                 }
 147         } else if (g_hash_table_lookup_extended(expandos, key, &origkey,
 148                                                 (gpointer *) &rec)) {
 149                 if (rec->func == func) {
 150                         g_hash_table_remove(expandos, key);
 151                         g_free(origkey);
 152                         g_free(rec);
 153                 }
 154         }
 155 }
 156
 157 void expando_bind(const char *key, int funccount, SIGNAL_FUNC *funcs)
 158 {
 159         SIGNAL_FUNC func;
 160         EXPANDO_REC *rec;
 161         int n, arg;
 162
 163         g_return_if_fail(key != NULL);
 164         g_return_if_fail(funccount >= 1);
 165         g_return_if_fail(funcs != NULL);
 166         g_return_if_fail(funcs[0] != NULL);
 167
 168         rec = expando_find(key);
 169         g_return_if_fail(rec != NULL);
 170
 171         if (rec->signals == 0) {
 172                 /* it's unknown when this expando changes..
 173                    check it once in a second */
 174                 signal_add("expando timer", funcs[EXPANDO_ARG_NONE]);
 175         }
 176
 177         for (n = 0; n < rec->signals; n++) {
 178                 arg = rec->signal_args[n];
 179                 func = arg < funccount ? funcs[arg] : NULL;
 180                 if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
 181
 182                 signal_add_to_id(MODULE_NAME, 1, rec->signal_ids[n], func);
 183         }
 184 }
 185
 186 void expando_unbind(const char *key, int funccount, SIGNAL_FUNC *funcs)
 187 {
 188         SIGNAL_FUNC func;
 189         EXPANDO_REC *rec;
 190         int n, arg;
 191
 192         g_return_if_fail(key != NULL);
 193         g_return_if_fail(funccount >= 1);
 194         g_return_if_fail(funcs != NULL);
 195         g_return_if_fail(funcs[0] != NULL);
 196
 197         rec = expando_find(key);
 198         g_return_if_fail(rec != NULL);
 199
 200         if (rec->signals == 0) {
 201                 /* it's unknown when this expando changes..
 202                    check it once in a second */
 203                 signal_remove("expando timer", funcs[EXPANDO_ARG_NONE]);
 204         }
 205
 206         for (n = 0; n < rec->signals; n++) {
 207                 arg = rec->signal_args[n];
 208                 func = arg < funccount ? funcs[arg] : NULL;
 209                 if (func == NULL) func = funcs[EXPANDO_ARG_NONE];
 210
 211                 signal_remove_id(rec->signal_ids[n], func);
 212         }
 213 }
 214
 215 /* Returns [<signal id>, EXPANDO_ARG_xxx, <signal id>, ..., -1] */
 216 int *expando_get_signals(const char *key)
 217 {
 218         EXPANDO_REC *rec;
 219         int *signals;
 220         int n;
 221
 222         g_return_val_if_fail(key != NULL, NULL);
 223
 224         rec = expando_find(key);
 225         if (rec == NULL || rec->signals < 0)
 226                 return NULL;
 227
 228         if (rec->signals == 0) {
 229                 /* it's unknown when this expando changes..
 230                    check it once in a second */
 231                 signals = g_new(int, 3);
 232                 signals[0] = signal_get_uniq_id("expando timer");
 233                 signals[1] = EXPANDO_ARG_NONE;
 234                 signals[2] = -1;
 235                 return signals;
 236         }
 237
 238         signals = g_new(int, rec->signals*2+1);
 239         for (n = 0; n < rec->signals; n++) {
 240                 signals[n*2] = rec->signal_ids[n];
 241                 signals[n*2+1] = rec->signal_args[n];
 242         }
 243         signals[rec->signals*2] = -1;
 244         return signals;
 245 }
 246
 247 EXPANDO_FUNC expando_find_char(char chr)
 248 {
 249         return CHAR_EXPANDO(chr) == NULL ? NULL :
 250                 CHAR_EXPANDO(chr)->func;
 251 }
 252
 253 EXPANDO_FUNC expando_find_long(const char *key)
 254 {
 255         EXPANDO_REC *rec = g_hash_table_lookup(expandos, key);
 256         return rec == NULL ? NULL : rec->func;
 257 }
 258
 259 /* last person who sent you a MSG */
 260 static char *expando_lastmsg(SERVER_REC *server, void *item, int *free_ret)
 261 {
 262         return last_privmsg_from;
 263 }
 264
 265 /* last person to whom you sent a MSG */
 266 static char *expando_lastmymsg(SERVER_REC *server, void *item, int *free_ret)
 267 {
 268         return last_sent_msg;
 269 }
 270
 271 /* last person to send a public message to a channel you are on */
 272 static char *expando_lastpublic(SERVER_REC *server, void *item, int *free_ret)
 273 {
 274         return last_public_from;
 275 }
 276
 277 /* text of your AWAY message, if any */
 278 static char *expando_awaymsg(SERVER_REC *server, void *item, int *free_ret)
 279 {
 280         return server == NULL ? "" : server->away_reason;
 281 }
 282
 283 /* body of last MSG you sent */
 284 static char *expando_lastmymsg_body(SERVER_REC *server, void *item, int *free_ret)
 285 {
 286         return last_sent_msg_body;
 287 }
 288
 289 /* current channel */
 290 static char *expando_channel(SERVER_REC *server, void *item, int *free_ret)
 291 {
 292         return !IS_CHANNEL(item) ? NULL : CHANNEL(item)->name;
 293 }
 294
 295 /* time client was started, $time() format */
 296 static char *expando_clientstarted(SERVER_REC *server, void *item, int *free_ret)
 297 {
 298         *free_ret = TRUE;
 299         return g_strdup_printf("%ld", (long) client_start_time);
 300 }
 301
 302 /* channel you were last INVITEd to */
 303 static char *expando_last_invite(SERVER_REC *server, void *item, int *free_ret)
 304 {
 305         return server == NULL ? "" : server->last_invite;
 306 }
 307
 308 /* client version text string */
 309 static char *expando_version(SERVER_REC *server, void *item, int *free_ret)
 310 {
 311         return IRSSI_VERSION;
 312 }
 313
 314 /* current value of CMDCHARS */
 315 static char *expando_cmdchars(SERVER_REC *server, void *item, int *free_ret)
 316 {
 317         return (char *) settings_get_str("cmdchars");
 318 }
 319
 320 /* modes of current channel, if any */
 321 static char *expando_chanmode(SERVER_REC *server, void *item, int *free_ret)
 322 {
 323         return !IS_CHANNEL(item) ? NULL : CHANNEL(item)->mode;
 324 }
 325
 326 /* current nickname */
 327 static char *expando_nick(SERVER_REC *server, void *item, int *free_ret)
 328 {
 329         return server == NULL ? "" : server->nick;
 330 }
 331
 332 /* value of STATUS_OPER if you are an irc operator */
 333 static char *expando_statusoper(SERVER_REC *server, void *item, int *free_ret)
 334 {
 335         return server == NULL || !server->server_operator ? "" :
 336                 (char *) settings_get_str("STATUS_OPER");
 337 }
 338
 339 /* if you are a channel operator in $C, expands to a '@' */
 340 static char *expando_chanop(SERVER_REC *server, void *item, int *free_ret)
 341 {
 342         return IS_CHANNEL(item) && CHANNEL(item)->chanop ? "@" : "";
 343 }
 344
 345 /* nickname of whomever you are QUERYing */
 346 static char *expando_query(SERVER_REC *server, void *item, int *free_ret)
 347 {
 348         return !IS_QUERY(item) ? "" : QUERY(item)->name;
 349 }
 350
 351 /* version of current server */
 352 static char *expando_serverversion(SERVER_REC *server, void *item, int *free_ret)
 353 {
 354         return server == NULL ? "" : server->version;
 355 }
 356
 357 /* target of current input (channel or QUERY nickname) */
 358 static char *expando_target(SERVER_REC *server, void *item, int *free_ret)
 359 {
 360         return item == NULL ? "" : ((WI_ITEM_REC *) item)->name;
 361 }
 362
 363 /* client release date (in YYYYMMDD format) */
 364 static char *expando_releasedate(SERVER_REC *server, void *item, int *free_ret)
 365 {
 366         *free_ret = TRUE;
 367         return g_strdup_printf("%d", IRSSI_VERSION_DATE);
 368 }
 369
 370 /* client release time (in HHMM format) */
 371 static char *expando_releasetime(SERVER_REC *server, void *item, int *free_ret)
 372 {
 373         *free_ret = TRUE;
 374         return g_strdup_printf("%04d", IRSSI_VERSION_TIME);
 375 }
 376
 377 /* current working directory */
 378 static char *expando_workdir(SERVER_REC *server, void *item, int *free_ret)
 379 {
 380         *free_ret = TRUE;
 381         return g_get_current_dir();
 382 }
 383
 384 /* value of REALNAME */
 385 static char *expando_realname(SERVER_REC *server, void *item, int *free_ret)
 386 {
 387         return server == NULL ? "" : server->connrec->realname;
 388 }
 389
 390 /* time of day (hh:mm) */
 391 static char *expando_time(SERVER_REC *server, void *item, int *free_ret)
 392 {
 393         time_t now;
 394         struct tm *tm;
 395         char str[256];
 396
 397         now = time(NULL);
 398         tm = localtime(&now);
 399
 400         if (strftime(str, sizeof(str), timestamp_format, tm) == 0)
 401                 return "";
 402
 403         *free_ret = TRUE;
 404         return g_strdup(str);
 405 }
 406
 407 /* a literal '$' */
 408 static char *expando_dollar(SERVER_REC *server, void *item, int *free_ret)
 409 {
 410         return "$";
 411 }
 412
 413 /* system name */
 414 static char *expando_sysname(SERVER_REC *server, void *item, int *free_ret)
 415 {
 416         return sysname;
 417 }
 418
 419 /* system release */
 420 static char *expando_sysrelease(SERVER_REC *server, void *item, int *free_ret)
 421 {
 422         return sysrelease;
 423 }
 424
 425 /* system architecture */
 426 static char *expando_sysarch(SERVER_REC *server, void *item, int *free_ret)
 427 {
 428         return sysarch;
 429 }
 430
 431 /* Topic of active channel (or address of queried nick) */
 432 static char *expando_topic(SERVER_REC *server, void *item, int *free_ret)
 433 {
 434         if (IS_CHANNEL(item))
 435                 return CHANNEL(item)->topic;
 436         if (IS_QUERY(item)) {
 437                 QUERY_REC *query = QUERY(item);
 438
 439                 if (query->server_tag == NULL)
 440                         return "";
 441
 442                 *free_ret = TRUE;
 443                 return query->address == NULL ?
 444                         g_strdup_printf("(%s)", query->server_tag) :
 445                         g_strdup_printf("%s (%s)", query->address,
 446                                         query->server_tag);
 447         }
 448         return "";
 449 }
 450
 451 /* Server tag */
 452 static char *expando_servertag(SERVER_REC *server, void *item, int *free_ret)
 453 {
 454         return server == NULL ? "" : server->tag;
 455 }
 456
 457 /* Server chatnet */
 458 static char *expando_chatnet(SERVER_REC *server, void *item, int *free_ret)
 459 {
 460         return server == NULL ? "" : server->connrec->chatnet;
 461 }
 462
 463 static void sig_message_public(SERVER_REC *server, const char *msg,
 464                                const char *nick, const char *address,
 465                                const char *target)
 466 {
 467         g_free_not_null(last_public_from);
 468         last_public_from = g_strdup(nick);
 469 }
 470
 471 static void sig_message_private(SERVER_REC *server, const char *msg,
 472                                 const char *nick, const char *address)
 473 {
 474         g_free_not_null(last_privmsg_from);
 475         last_privmsg_from = g_strdup(nick);
 476 }
 477
 478 static void sig_message_own_private(SERVER_REC *server, const char *msg,
 479                                     const char *target, const char *origtarget)
 480 {
 481         g_return_if_fail(server != NULL);
 482         g_return_if_fail(msg != NULL);
 483
 484         if (target != NULL) {
 485                 if (target != last_sent_msg) {
 486                         g_free_not_null(last_sent_msg);
 487                         last_sent_msg = g_strdup(target);
 488                 }
 489                 g_free_not_null(last_sent_msg_body);
 490                 last_sent_msg_body = g_strdup(msg);
 491         }
 492 }
 493
 494 static int sig_timer(void)
 495 {
 496         time_t now;
 497         struct tm *tm;
 498         int last_min;
 499
 500         signal_emit("expando timer", 0);
 501
 502         /* check if $Z has changed */
 503         now = time(NULL);
 504         if (last_timestamp != now) {
 505                 if (!timestamp_seconds && last_timestamp != 0) {
 506                         /* assume it changes every minute */
 507                         tm = localtime(&last_timestamp);
 508                         last_min = tm->tm_min;
 509
 510                         tm = localtime(&now);
 511                         if (tm->tm_min == last_min)
 512                                 return 1;
 513                 }
 514
 515                 signal_emit("time changed", 0);
 516                 last_timestamp = now;
 517         }
 518
 519         return 1;
 520 }
 521
 522 static void read_settings(void)
 523 {
 524         timestamp_format = settings_get_str("timestamp_format");
 525         timestamp_seconds =
 526                 strstr(timestamp_format, "%r") != NULL ||
 527                 strstr(timestamp_format, "%s") != NULL ||
 528                 strstr(timestamp_format, "%S") != NULL ||
 529                 strstr(timestamp_format, "%X") != NULL ||
 530                 strstr(timestamp_format, "%T") != NULL;
 531
 532 }
 533
 534 void expandos_init(void)
 535 {
 536 #ifdef HAVE_SYS_UTSNAME_H
 537         struct utsname un;
 538 #endif
 539         settings_add_str("misc", "STATUS_OPER", "*");
 540         settings_add_str("misc", "timestamp_format", "%H:%M");
 541
 542         client_start_time = time(NULL);
 543         last_sent_msg = NULL; last_sent_msg_body = NULL;
 544         last_privmsg_from = NULL; last_public_from = NULL;
 545         last_timestamp = 0;
 546
 547         sysname = sysrelease = sysarch = NULL;
 548 #ifdef HAVE_SYS_UTSNAME_H
 549         if (uname(&un) >= 0) {
 550                 sysname = g_strdup(un.sysname);
 551                 sysrelease = g_strdup(un.release);
 552                 sysarch = g_strdup(un.machine);
 553         }
 554 #endif
 555
 556         memset(char_expandos, 0, sizeof(char_expandos));
 557         expandos = g_hash_table_new((GHashFunc) g_str_hash,
 558                                     (GCompareFunc) g_str_equal);
 559
 560         expando_create(",", expando_lastmsg,
 561                        "message private", EXPANDO_ARG_SERVER, NULL);
 562         expando_create(".", expando_lastmymsg,
 563                        "command msg", EXPANDO_ARG_NONE, NULL);
 564         expando_create(";", expando_lastpublic,
 565                        "message public", EXPANDO_ARG_SERVER, NULL);
 566         expando_create("A", expando_awaymsg,
 567                        "away mode changed", EXPANDO_ARG_NONE, NULL);
 568         expando_create("B", expando_lastmymsg_body,
 569                        "command msg", EXPANDO_ARG_NONE, NULL);
 570         expando_create("C", expando_channel,
 571                        "window changed", EXPANDO_ARG_NONE,
 572                        "window item changed", EXPANDO_ARG_WINDOW, NULL);
 573         expando_create("F", expando_clientstarted,
 574                        "", EXPANDO_NEVER, NULL);
 575         expando_create("I", expando_last_invite, NULL);
 576         expando_create("J", expando_version,
 577                        "", EXPANDO_NEVER, NULL);
 578         expando_create("K", expando_cmdchars,
 579                        "setup changed", EXPANDO_ARG_NONE, NULL);
 580         expando_create("M", expando_chanmode,
 581                        "window changed", EXPANDO_ARG_NONE,
 582                        "window item changed", EXPANDO_ARG_WINDOW,
 583                        "channel mode changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
 584         expando_create("N", expando_nick,
 585                        "window changed", EXPANDO_ARG_NONE,
 586                        "window server changed", EXPANDO_ARG_WINDOW,
 587                        "server nick changed", EXPANDO_ARG_SERVER, NULL);
 588         expando_create("O", expando_statusoper,
 589                        "setup changed", EXPANDO_ARG_NONE,
 590                        "window changed", EXPANDO_ARG_NONE,
 591                        "window server changed", EXPANDO_ARG_WINDOW,
 592                        "user mode changed", EXPANDO_ARG_WINDOW, NULL);
 593         expando_create("P", expando_chanop,
 594                        "window changed", EXPANDO_ARG_NONE,
 595                        "window item changed", EXPANDO_ARG_WINDOW,
 596                        "nick mode changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
 597         expando_create("Q", expando_query,
 598                        "window changed", EXPANDO_ARG_NONE,
 599                        "window item changed", EXPANDO_ARG_WINDOW, NULL);
 600         expando_create("R", expando_serverversion,
 601                        "window changed", EXPANDO_ARG_NONE,
 602                        "window server changed", EXPANDO_ARG_WINDOW, NULL);
 603         expando_create("T", expando_target,
 604                        "window changed", EXPANDO_ARG_NONE,
 605                        "window item changed", EXPANDO_ARG_WINDOW, NULL);
 606         expando_create("V", expando_releasedate,
 607                        "", EXPANDO_NEVER, NULL);
 608         expando_create("versiontime", expando_releasetime,
 609                        "", EXPANDO_NEVER, NULL);
 610         expando_create("W", expando_workdir, NULL);
 611         expando_create("Y", expando_realname,
 612                        "window changed", EXPANDO_ARG_NONE,
 613                        "window server changed", EXPANDO_ARG_WINDOW, NULL);
 614         expando_create("Z", expando_time,
 615                        "time changed", EXPANDO_ARG_NONE, NULL);
 616         expando_create("$", expando_dollar,
 617                        "", EXPANDO_NEVER, NULL);
 618
 619         expando_create("sysname", expando_sysname,
 620                        "", EXPANDO_NEVER, NULL);
 621         expando_create("sysrelease", expando_sysrelease,
 622                        "", EXPANDO_NEVER, NULL);
 623         expando_create("sysarch", expando_sysarch,
 624                        "", EXPANDO_NEVER, NULL);
 625         expando_create("topic", expando_topic,
 626                        "window changed", EXPANDO_ARG_NONE,
 627                        "window item changed", EXPANDO_ARG_WINDOW,
 628                        "channel topic changed", EXPANDO_ARG_WINDOW_ITEM,
 629                        "query address changed", EXPANDO_ARG_WINDOW_ITEM, NULL);
 630         expando_create("tag", expando_servertag,
 631                        "window changed", EXPANDO_ARG_NONE,
 632                        "window server changed", EXPANDO_ARG_WINDOW, NULL);
 633         expando_create("chatnet", expando_chatnet,
 634                        "window changed", EXPANDO_ARG_NONE,
 635                        "window server changed", EXPANDO_ARG_WINDOW, NULL);
 636
 637         read_settings();
 638
 639         timer_tag = g_timeout_add(500, (GSourceFunc) sig_timer, NULL);
 640         signal_add("message public", (SIGNAL_FUNC) sig_message_public);
 641         signal_add("message private", (SIGNAL_FUNC) sig_message_private);
 642         signal_add("message own_private", (SIGNAL_FUNC) sig_message_own_private);
 643         signal_add_first("setup changed", (SIGNAL_FUNC) read_settings);
 644 }
 645
 646 void expandos_deinit(void)
 647 {
 648         int n;
 649
 650         for (n = 0; n < sizeof(char_expandos)/sizeof(char_expandos[0]); n++)
 651                 g_free_not_null(char_expandos[n]);
 652
 653         expando_destroy("sysname", expando_sysname);
 654         expando_destroy("sysrelease", expando_sysrelease);
 655         expando_destroy("sysarch", expando_sysarch);
 656         expando_destroy("topic", expando_topic);
 657         expando_destroy("tag", expando_servertag);
 658         expando_destroy("chatnet", expando_chatnet);
 659
 660         g_hash_table_destroy(expandos);
 661
 662         g_free_not_null(last_sent_msg); g_free_not_null(last_sent_msg_body);
 663         g_free_not_null(last_privmsg_from); g_free_not_null(last_public_from);
 664         g_free_not_null(sysname); g_free_not_null(sysrelease);
 665         g_free_not_null(sysarch);
 666
 667         g_source_remove(timer_tag);
 668         signal_remove("message public", (SIGNAL_FUNC) sig_message_public);
 669         signal_remove("message private", (SIGNAL_FUNC) sig_message_private);
 670         signal_remove("message own_private", (SIGNAL_FUNC) sig_message_own_private);
 671         signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 672 }