src/proto-p10.c

   1 /* proto-p10.c - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of srvx.
   5  *
   6  * srvx 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 srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "proto-common.c"
  22
  23 /* Full commands. */
  24 #define CMD_ACCOUNT             "ACCOUNT"
  25 #define CMD_ADMIN               "ADMIN"
  26 #define CMD_ASLL                "ASLL"
  27 #define CMD_AWAY                "AWAY"
  28 #define CMD_BURST               "BURST"
  29 #define CMD_CLEARMODE           "CLEARMODE"
  30 #define CMD_CLOSE               "CLOSE"
  31 #define CMD_CNOTICE             "CNOTICE"
  32 #define CMD_CONNECT             "CONNECT"
  33 #define CMD_CPRIVMSG            "CPRIVMSG"
  34 #define CMD_CREATE              "CREATE"
  35 #define CMD_DESTRUCT            "DESTRUCT"
  36 #define CMD_DESYNCH             "DESYNCH"
  37 #define CMD_DIE                 "DIE"
  38 #define CMD_DNS                 "DNS"
  39 #define CMD_EOB                 "END_OF_BURST"
  40 #define CMD_EOB_ACK             "EOB_ACK"
  41 #define CMD_ERROR               "ERROR"
  42 #define CMD_FAKEHOST            "FAKE"
  43 #define CMD_GET                 "GET"
  44 #define CMD_GLINE               "GLINE"
  45 #define CMD_HASH                "HASH"
  46 #define CMD_HELP                "HELP"
  47 #define CMD_INFO                "INFO"
  48 #define CMD_INVITE              "INVITE"
  49 #define CMD_ISON                "ISON"
  50 #define CMD_JOIN                "JOIN"
  51 #define CMD_JUPE                "JUPE"
  52 #define CMD_KICK                "KICK"
  53 #define CMD_KILL                "KILL"
  54 #define CMD_LINKS               "LINKS"
  55 #define CMD_LIST                "LIST"
  56 #define CMD_LUSERS              "LUSERS"
  57 #define CMD_MAP                 "MAP"
  58 #define CMD_MODE                "MODE"
  59 #define CMD_MOTD                "MOTD"
  60 #define CMD_NAMES               "NAMES"
  61 #define CMD_NICK                "NICK"
  62 #define CMD_NOTICE              "NOTICE"
  63 #define CMD_OPER                "OPER"
  64 #define CMD_OPMODE              "OPMODE"
  65 #define CMD_PART                "PART"
  66 #define CMD_PASS                "PASS"
  67 #define CMD_PING                "PING"
  68 #define CMD_PONG                "PONG"
  69 #define CMD_POST                "POST"
  70 #define CMD_PRIVMSG             "PRIVMSG"
  71 #define CMD_PRIVS               "PRIVS"
  72 #define CMD_PROTO               "PROTO"
  73 #define CMD_QUIT                "QUIT"
  74 #define CMD_REHASH              "REHASH"
  75 #define CMD_RESET               "RESET"
  76 #define CMD_RESTART             "RESTART"
  77 #define CMD_RPING               "RPING"
  78 #define CMD_RPONG               "RPONG"
  79 #define CMD_SERVER              "SERVER"
  80 #define CMD_SERVLIST            "SERVLIST"
  81 #define CMD_SERVSET             "SERVSET"
  82 #define CMD_SET                 "SET"
  83 #define CMD_SETTIME             "SETTIME"
  84 #define CMD_SILENCE             "SILENCE"
  85 #define CMD_SQUERY              "SQUERY"
  86 #define CMD_SQUIT               "SQUIT"
  87 #define CMD_STATS               "STATS"
  88 #define CMD_SVSNICK             "SVSNICK"
  89 #define CMD_TIME                "TIME"
  90 #define CMD_TOPIC               "TOPIC"
  91 #define CMD_TRACE               "TRACE"
  92 #define CMD_UPING               "UPING"
  93 #define CMD_USER                "USER"
  94 #define CMD_USERHOST            "USERHOST"
  95 #define CMD_USERIP              "USERIP"
  96 #define CMD_VERSION             "VERSION"
  97 #define CMD_WALLCHOPS           "WALLCHOPS"
  98 #define CMD_WALLOPS             "WALLOPS"
  99 #define CMD_WALLHOPS            "WALLHOPS"
 100 #define CMD_WALLUSERS           "WALLUSERS"
 101 #define CMD_WALLVOICES          "WALLVOICES"
 102 #define CMD_WALLHOPS            "WALLHOPS"
 103 #define CMD_WHO                 "WHO"
 104 #define CMD_WHOIS               "WHOIS"
 105 #define CMD_WHOWAS              "WHOWAS"
 106
 107 /* Tokenized commands. */
 108 #define TOK_ACCOUNT             "AC"
 109 #define TOK_ADMIN               "AD"
 110 #define TOK_ASLL                "LL"
 111 #define TOK_AWAY                "A"
 112 #define TOK_BURST               "B"
 113 #define TOK_CLEARMODE           "CM"
 114 #define TOK_CLOSE               "CLOSE"
 115 #define TOK_CNOTICE             "CN"
 116 #define TOK_CONNECT             "CO"
 117 #define TOK_CPRIVMSG            "CP"
 118 #define TOK_CREATE              "C"
 119 #define TOK_DESTRUCT            "DE"
 120 #define TOK_DESYNCH             "DS"
 121 #define TOK_DIE                 "DIE"
 122 #define TOK_DNS                 "DNS"
 123 #define TOK_EOB                 "EB"
 124 #define TOK_EOB_ACK             "EA"
 125 #define TOK_ERROR               "Y"
 126 #define TOK_FAKEHOST            "FA"
 127 #define TOK_GET                 "GET"
 128 #define TOK_GLINE               "GL"
 129 #define TOK_HASH                "HASH"
 130 #define TOK_HELP                "HELP"
 131 #define TOK_INFO                "F"
 132 #define TOK_INVITE              "I"
 133 #define TOK_ISON                "ISON"
 134 #define TOK_JOIN                "J"
 135 #define TOK_JUPE                "JU"
 136 #define TOK_KICK                "K"
 137 #define TOK_KILL                "D"
 138 #define TOK_LINKS               "LI"
 139 #define TOK_LIST                "LIST"
 140 #define TOK_LUSERS              "LU"
 141 #define TOK_MAP                 "MAP"
 142 #define TOK_MODE                "M"
 143 #define TOK_MOTD                "MO"
 144 #define TOK_NAMES               "E"
 145 #define TOK_NICK                "N"
 146 #define TOK_NOTICE              "O"
 147 #define TOK_OPER                "OPER"
 148 #define TOK_OPMODE              "OM"
 149 #define TOK_PART                "L"
 150 #define TOK_PASS                "PA"
 151 #define TOK_PING                "G"
 152 #define TOK_PONG                "Z"
 153 #define TOK_POST                "POST"
 154 #define TOK_PRIVMSG             "P"
 155 #define TOK_PRIVS               "PRIVS"
 156 #define TOK_PROTO               "PROTO"
 157 #define TOK_QUIT                "Q"
 158 #define TOK_REHASH              "REHASH"
 159 #define TOK_RESET               "RESET"
 160 #define TOK_RESTART             "RESTART"
 161 #define TOK_RPING               "RI"
 162 #define TOK_RPONG               "RO"
 163 #define TOK_SERVER              "S"
 164 #define TOK_SERVLIST            "SERVSET"
 165 #define TOK_SERVSET             "SERVSET"
 166 #define TOK_SET                 "SET"
 167 #define TOK_SETTIME             "SE"
 168 #define TOK_SILENCE             "U"
 169 #define TOK_SQUERY              "SQUERY"
 170 #define TOK_SQUIT               "SQ"
 171 #define TOK_STATS               "R"
 172 #define TOK_SVSNICK             "SN"
 173 #define TOK_TIME                "TI"
 174 #define TOK_TOPIC               "T"
 175 #define TOK_TRACE               "TR"
 176 #define TOK_UPING               "UP"
 177 #define TOK_USER                "USER"
 178 #define TOK_USERHOST            "USERHOST"
 179 #define TOK_USERIP              "USERIP"
 180 #define TOK_VERSION             "V"
 181 #define TOK_WALLCHOPS           "WC"
 182 #define TOK_WALLOPS             "WA"
 183 #define TOK_WALLHOPS            "WH"
 184 #define TOK_WALLUSERS           "WU"
 185 #define TOK_WALLVOICES          "WV"
 186 #define TOK_WALLHOPS            "WH"
 187 #define TOK_WHO                 "H"
 188 #define TOK_WHOIS               "W"
 189 #define TOK_WHOWAS              "X"
 190
 191 /* Protocol messages; aliased to full commands or tokens depending
 192    on compile-time configuration. ircu prefers tokens WITH THE
 193    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 194    tokenized, because clients' (ie. a linking server) commands are
 195    only checked against the full command list.
 196 */
 197 #if defined(ENABLE_TOKENS)
 198 #define TYPE(NAME)              TOK_ ## NAME
 199 #else /* !ENABLE_TOKENS */
 200 #define TYPE(NAME)              CMD_ ## NAME
 201 #endif /* ENABLE_TOKENS */
 202
 203 #define P10_ACCOUNT             TYPE(ACCOUNT)
 204 #define P10_ADMIN               TYPE(ADMIN)
 205 #define P10_ASLL                TYPE(ASLL)
 206 #define P10_AWAY                TYPE(AWAY)
 207 #define P10_BURST               TYPE(BURST)
 208 #define P10_CLEARMODE           TYPE(CLEARMODE)
 209 #define P10_CLOSE               TYPE(CLOSE)
 210 #define P10_CNOTICE             TYPE(CNOTICE)
 211 #define P10_CONNECT             TYPE(CONNECT)
 212 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 213 #define P10_CREATE              TYPE(CREATE)
 214 #define P10_DESTRUCT            TYPE(DESTRUCT)
 215 #define P10_DESYNCH             TYPE(DESYNCH)
 216 #define P10_DIE                 TYPE(DIE)
 217 #define P10_DNS                 TYPE(DNS)
 218 #define P10_EOB                 TYPE(EOB)
 219 #define P10_EOB_ACK             TYPE(EOB_ACK)
 220 #define P10_ERROR               TYPE(ERROR)
 221 #define P10_FAKEHOST            TYPE(FAKEHOST)
 222 #define P10_GET                 TYPE(GET)
 223 #define P10_GLINE               TYPE(GLINE)
 224 #define P10_HASH                TYPE(HASH)
 225 #define P10_HELP                TYPE(HELP)
 226 #define P10_INFO                TYPE(INFO)
 227 #define P10_INVITE              TYPE(INVITE)
 228 #define P10_ISON                TYPE(ISON)
 229 #define P10_JOIN                TYPE(JOIN)
 230 #define P10_JUPE                TYPE(JUPE)
 231 #define P10_KICK                TYPE(KICK)
 232 #define P10_KILL                TYPE(KILL)
 233 #define P10_LINKS               TYPE(LINKS)
 234 #define P10_LIST                TYPE(LIST)
 235 #define P10_LUSERS              TYPE(LUSERS)
 236 #define P10_MAP                 TYPE(MAP)
 237 #define P10_MODE                TYPE(MODE)
 238 #define P10_MOTD                TYPE(MOTD)
 239 #define P10_NAMES               TYPE(NAMES)
 240 #define P10_NICK                TYPE(NICK)
 241 #define P10_NOTICE              TYPE(NOTICE)
 242 #define P10_OPER                TYPE(OPER)
 243 #define P10_OPMODE              TYPE(OPMODE)
 244 #define P10_PART                TYPE(PART)
 245 #define P10_PASS                CMD_PASS
 246 #define P10_PING                TYPE(PING)
 247 #define P10_PONG                TYPE(PONG)
 248 #define P10_POST                TYPE(POST)
 249 #define P10_PRIVMSG             TYPE(PRIVMSG)
 250 #define P10_PRIVS               TYPE(PRIVS)
 251 #define P10_PROTO               TYPE(PROTO)
 252 #define P10_QUIT                TYPE(QUIT)
 253 #define P10_REHASH              TYPE(REHASH)
 254 #define P10_RESET               TYPE(RESET)
 255 #define P10_RESTART             TYPE(RESTART)
 256 #define P10_RPING               TYPE(RPING)
 257 #define P10_RPONG               TYPE(RPONG)
 258 #define P10_SERVER              CMD_SERVER
 259 #define P10_SERVLIST            TYPE(SERVLIST)
 260 #define P10_SERVSET             TYPE(SERVSET)
 261 #define P10_SET                 TYPE(SET)
 262 #define P10_SETTIME             TYPE(SETTIME)
 263 #define P10_SILENCE             TYPE(SILENCE)
 264 #define P10_SQUERY              TYPE(SQUERY)
 265 #define P10_SQUIT               TYPE(SQUIT)
 266 #define P10_STATS               TYPE(STATS)
 267 #define P10_SVSNICK             TYPE(SVSNICK)
 268 #define P10_TIME                TYPE(TIME)
 269 #define P10_TOPIC               TYPE(TOPIC)
 270 #define P10_TRACE               TYPE(TRACE)
 271 #define P10_UPING               TYPE(UPING)
 272 #define P10_USER                TYPE(USER)
 273 #define P10_USERHOST            TYPE(USERHOST)
 274 #define P10_USERIP              TYPE(USERIP)
 275 #define P10_VERSION             TYPE(VERSION)
 276 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 277 #define P10_WALLOPS             TYPE(WALLOPS)
 278 #define P10_WALLHOPS            TYPE(WALLHOPS)
 279 #define P10_WALLUSERS           TYPE(WALLUSERS)
 280 #define P10_WALLVOICES          TYPE(WALLVOICES)
 281 #define P10_WHO                 TYPE(WHO)
 282 #define P10_WHOIS               TYPE(WHOIS)
 283 #define P10_WHOWAS              TYPE(WHOWAS)
 284
 285 /* Servers claiming to have a boot or link time before PREHISTORY
 286  * trigger errors to the log.  We hope no server has been running
 287  * constantly since September 1994.  :)
 288  */
 289 #define PREHISTORY 780000000
 290
 291 static struct server *servers_num[64*64];
 292 static privmsg_func_t *privmsg_funcs;
 293 static unsigned int num_privmsg_funcs;
 294 static privmsg_func_t *notice_funcs;
 295 static unsigned int num_notice_funcs;
 296 static struct dict *unbursted_channels;
 297 static char *his_servername;
 298 static char *his_servercomment;
 299
 300 static struct userNode *AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip);
 301
 302 extern int off_channel;
 303
 304 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 305  * server and Y's indentifying the client on that server. */
 306 struct server*
 307 GetServerN(const char *numeric)
 308 {
 309     switch (strlen(numeric)) {
 310     default:
 311         return servers_num[base64toint(numeric, 2)];
 312     case 4:
 313     case 3:
 314     case 1:
 315         return servers_num[base64toint(numeric, 1)];
 316     case 0:
 317         return NULL;
 318     }
 319 }
 320
 321 struct userNode*
 322 GetUserN(const char *numeric) /* using numeric */
 323 {
 324     struct userNode *un;
 325     struct server *s;
 326     int n, slen, ulen;
 327
 328     switch (strlen(numeric)) {
 329     default:
 330         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 331         return NULL;
 332     case 5: slen = 2; ulen = 3; break;
 333     case 4: slen = 1; ulen = 3; break;
 334     case 3: slen = 1; ulen = 2; break;
 335     case 2: case 1: case 0:
 336         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 337         return NULL;
 338     }
 339     if (!(s = servers_num[base64toint(numeric, slen)])) {
 340         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 341         return NULL;
 342     }
 343     n = base64toint(numeric+slen, ulen) & s->num_mask;
 344     if (!(un = s->users[n])) {
 345         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 346     }
 347     return un;
 348 }
 349
 350 static void
 351 privmsg_user_helper(struct userNode *un, void *data)
 352 {
 353     struct privmsg_desc *pd = data;
 354     unsigned int num = un->num_local;
 355     if (!pd->is_notice) {
 356         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 357             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 358         }
 359     } else {
 360         if ((num < num_notice_funcs) && notice_funcs[num]) {
 361             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 362         }
 363     }
 364 }
 365
 366 void
 367 irc_server(struct server *srv)
 368 {
 369     char extranum[COMBO_NUMERIC_LEN+1];
 370
 371     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 372     if (srv == self) {
 373         /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
 374         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
 375                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 376     } else {
 377         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
 378                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 379     }
 380 }
 381
 382 void
 383 irc_user(struct userNode *user)
 384 {
 385     char b64ip[7];
 386     if (!user)
 387         return;
 388     inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
 389     if (user->modes) {
 390         int modelen;
 391         char modes[32];
 392
 393         modelen = 0;
 394         if (IsOper(user))
 395             modes[modelen++] = 'o';
 396         if (IsInvisible(user))
 397             modes[modelen++] = 'i';
 398         if (IsWallOp(user))
 399             modes[modelen++] = 'w';
 400         if (IsService(user))
 401             modes[modelen++] = 'k';
 402         if (IsServNotice(user))
 403             modes[modelen++] = 's';
 404         if (IsDeaf(user))
 405             modes[modelen++] = 'd';
 406         if (IsGlobal(user))
 407             modes[modelen++] = 'g';
 408         // sethost - reed/apples
 409         // if (IsHelperIrcu(user))
 410         if (IsSetHost(user))
 411             modes[modelen++] = 'h';
 412         if (IsFakeHost(user))
 413             modes[modelen++] = 'f';
 414         if (IsHiddenHost(user))
 415             modes[modelen++] = 'x';
 416         modes[modelen] = 0;
 417
 418         /* we don't need to put the + in modes because it's in the format string. */
 419         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 420                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 421     } else {
 422         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 423                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 424     }
 425 }
 426
 427 void
 428 irc_account(struct userNode *user, const char *stamp)
 429 {
 430     putsock("%s " P10_ACCOUNT " %s R %s", self->numeric, user->numeric, stamp);
 431 }
 432
 433 void
 434 irc_fakehost(struct userNode *user, const char *host)
 435 {
 436     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 437 }
 438
 439 void
 440 irc_regnick(UNUSED_ARG(struct userNode *user))
 441 {
 442     /* no operation here */
 443 }
 444
 445 void
 446 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 447 {
 448     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 449 }
 450
 451 void
 452 irc_fetchtopic(struct userNode *from, const char *to)
 453 {
 454     if (!from || !to)
 455         return;
 456     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 457 }
 458
 459 void
 460 irc_squit(struct server *srv, const char *message, const char *service_message)
 461 {
 462     if (!service_message)
 463         service_message = message;
 464
 465     /* Are we leaving the network? */
 466     if (srv == self && cManager.uplink->state == CONNECTED) {
 467         unsigned int i;
 468
 469         /* Quit all clients linked to me. */
 470         for (i = 0; i <= self->num_mask; i++) {
 471             if (!self->users[i])
 472                 continue;
 473             irc_quit(self->users[i], service_message);
 474         }
 475     }
 476
 477     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 478
 479     if (srv == self) {
 480         /* Force a reconnect to the currently selected server. */
 481         cManager.uplink->tries = 0;
 482         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 483         close_socket();
 484     }
 485 }
 486
 487 void
 488 irc_wallchops(struct userNode *from, const char *to, const char *message)
 489 {
 490     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 491 }
 492
 493 void
 494 irc_notice(struct userNode *from, const char *to, const char *message)
 495 {
 496     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 497 }
 498
 499 void
 500 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 501 {
 502     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 503 }
 504
 505 void
 506 irc_privmsg(struct userNode *from, const char *to, const char *message)
 507 {
 508     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 509 }
 510
 511 void
 512 irc_eob(void)
 513 {
 514     putsock("%s " P10_EOB, self->numeric);
 515 }
 516
 517 void
 518 irc_eob_ack(void)
 519 {
 520     putsock("%s " P10_EOB_ACK, self->numeric);
 521 }
 522
 523 void
 524 irc_ping(const char *payload)
 525 {
 526     putsock("%s " P10_PING " :%s", self->numeric, payload);
 527 }
 528
 529 void
 530 irc_pong(const char *who, const char *data)
 531 {
 532     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 533 }
 534
 535 void
 536 irc_pass(const char *passwd)
 537 {
 538     putsock(P10_PASS " :%s", passwd);
 539 }
 540
 541 void
 542 irc_introduce(const char *passwd)
 543 {
 544     void timed_send_ping(void *data);
 545
 546     self->self_burst = self->burst = 1;
 547     irc_pass(passwd);
 548     irc_server(self);
 549     burst_length = 0;
 550     timeq_add(now + ping_freq, timed_send_ping, 0);
 551 }
 552
 553 void
 554 irc_gline(struct server *srv, struct gline *gline)
 555 {
 556     putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
 557             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
 558 }
 559
 560 void
 561 irc_settime(const char *srv_name_mask, time_t new_time)
 562 {
 563     ioset_set_time(new_time);
 564     if (!strcmp(srv_name_mask, "*"))
 565         srv_name_mask = "";
 566     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 567 }
 568
 569 void
 570 irc_ungline(const char *mask)
 571 {
 572     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 573 }
 574
 575 static void
 576 irc_burst(struct chanNode *chan)
 577 {
 578     char burst_line[512];
 579     int pos, base_len, len;
 580     struct modeNode *mn;
 581     struct banNode *bn;
 582     struct exemptNode *en;
 583     long last_mode=-1;
 584     unsigned int n;
 585
 586     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 587                        self->numeric, chan->name, chan->timestamp);
 588     len = irc_make_chanmode(chan, burst_line+base_len);
 589     pos = base_len + len;
 590     if (len)
 591         burst_line[pos++] = ' ';
 592
 593     /* dump the users */
 594     for (n=0; n<chan->members.used; n++) {
 595         mn = chan->members.list[n];
 596         if (pos > 500) {
 597             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 598             putsock("%s", burst_line);
 599             pos = base_len;
 600             last_mode = -1;
 601         }
 602         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 603         pos += strlen(mn->user->numeric);
 604         if (mn->modes && (mn->modes != last_mode)) {
 605             last_mode = mn->modes;
 606             burst_line[pos++] = ':';
 607             if (last_mode & MODE_CHANOP)
 608                 burst_line[pos++] = 'o';
 609             if (last_mode & MODE_HALFOP)
 610                 burst_line[pos++] = 'h';
 611             if (last_mode & MODE_VOICE)
 612                 burst_line[pos++] = 'v';
 613         }
 614         if ((n+1)<chan->members.used)
 615             burst_line[pos++] = ',';
 616     }
 617     if (chan->banlist.used) {
 618         /* dump the bans */
 619         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 620             burst_line[pos-1] = 0;
 621             putsock("%s", burst_line);
 622             pos = base_len;
 623         } else {
 624             burst_line[pos++] = ' ';
 625         }
 626
 627         burst_line[pos++] = ':';
 628         burst_line[pos++] = '%';
 629         base_len = pos;
 630         for (n=0; n<chan->banlist.used; n++) {
 631             bn = chan->banlist.list[n];
 632             len = strlen(bn->ban);
 633             if (pos+len+1 > 510) {
 634                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 635                 putsock("%s", burst_line);
 636                 pos = base_len;
 637             }
 638             memcpy(burst_line+pos, bn->ban, len);
 639             pos += len;
 640             burst_line[pos++] = ' ';
 641         }
 642     }
 643     if (chan->exemptlist.used) {
 644         /* dump the exempt */
 645         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 646             burst_line[pos-1] = 0;
 647             putsock("%s", burst_line);
 648             pos = base_len;
 649         } else {
 650             burst_line[pos++] = ' ';
 651         }
 652
 653         burst_line[pos++] = ' ';
 654         burst_line[pos++] = '~';
 655         burst_line[pos++] = ' ';
 656         base_len = pos;
 657         for (n=0; n<chan->exemptlist.used; n++) {
 658             en = chan->exemptlist.list[n];
 659             len = strlen(en->exempt);
 660             if (pos+len+1 > 510) {
 661                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 662                 putsock("%s", burst_line);
 663                 pos = base_len;
 664             }
 665             memcpy(burst_line+pos, en->exempt, len);
 666             pos += len;
 667             burst_line[pos++] = ' ';
 668         }
 669     }
 670     /* print the last line */
 671     burst_line[pos] = 0;
 672     putsock("%s", burst_line);
 673 }
 674
 675 void
 676 irc_quit(struct userNode *user, const char *message)
 677 {
 678     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 679 }
 680
 681 void
 682 irc_error(const char *to, const char *message)
 683 {
 684     if (to) {
 685         putsock("%s " P10_ERROR " :%s", to, message);
 686     } else {
 687         putsock(":%s " P10_ERROR " :%s", self->name, message);
 688     }
 689 }
 690
 691 void
 692 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 693 {
 694     if (from) {
 695         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 696                 from->numeric, target->numeric, self->name, from->nick, message);
 697     } else {
 698         putsock("%s " P10_KILL " %s :%s (%s)",
 699                 self->numeric, target->numeric, self->name, message);
 700     }
 701 }
 702
 703 void
 704 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 705 {
 706     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 707             (from ? from->numeric : self->numeric),
 708             target->name, modes, target->timestamp);
 709 }
 710
 711 void
 712 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 713 {
 714     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 715 }
 716
 717 void
 718 irc_join(struct userNode *who, struct chanNode *what)
 719 {
 720     if (what->members.used == 1) {
 721         putsock("%s " P10_CREATE " %s %lu",
 722                 who->numeric, what->name, what->timestamp);
 723     } else {
 724         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
 725     }
 726 }
 727
 728 void
 729 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
 730 {
 731     const char *numeric;
 732     struct modeNode *mn = GetUserMode(channel, who);
 733     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
 734     putsock("%s " P10_KICK " %s %s :%s",
 735             numeric, channel->name, target->numeric, msg);
 736 }
 737
 738 void
 739 irc_stats(struct userNode *from, struct server *target, char type)
 740 {
 741     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
 742 }
 743
 744 void
 745 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
 746 {
 747     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
 748 }
 749
 750 void
 751 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
 752 {
 753     if (reason) {
 754         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
 755     } else {
 756         putsock("%s " P10_PART " %s", who->numeric, what->name);
 757     }
 758 }
 759
 760 void
 761 irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
 762 {
 763     putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
 764 }
 765
 766 void
 767 irc_raw(const char *what)
 768 {
 769     putsock("%s", what);
 770 }
 771
 772 void
 773 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
 774 {
 775     va_list arg_list;
 776     char buffer[MAXLEN];
 777     va_start(arg_list, format);
 778     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 779     buffer[MAXLEN-1] = 0;
 780     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
 781 }
 782
 783 static void send_burst(void);
 784
 785 static void
 786 change_nicklen(int new_nicklen)
 787 {
 788     unsigned int nn;
 789     char new_nick[NICKLEN+1];
 790     struct userNode *user;
 791
 792     nicklen = new_nicklen;
 793     /* fix up any users we have here */
 794     for (nn=0; nn<=self->num_mask; nn++) {
 795         if (!(user = self->users[nn]))
 796             continue;
 797         safestrncpy(new_nick, user->nick, sizeof(new_nick));
 798         new_nick[nicklen] = 0;
 799         NickChange(user, new_nick, 1);
 800     }
 801 }
 802
 803 static CMD_FUNC(cmd_whois)
 804 {
 805     struct userNode *from;
 806     struct userNode *who;
 807
 808     if (argc < 3)
 809         return 0;
 810     if (!(from = GetUserH(origin))) {
 811         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
 812         return 0;
 813     }
 814     if(!(who = GetUserH(argv[2]))) {
 815         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
 816         return 1;
 817     }
 818     if (IsHiddenHost(who) && !IsOper(from)) {
 819         /* Just stay quiet. */
 820         return 1;
 821     }
 822     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
 823     if (his_servername && his_servercomment)
 824         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
 825     else
 826         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
 827     if (IsOper(who))
 828         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
 829     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
 830     return 1;
 831 }
 832
 833 static CMD_FUNC(cmd_server)
 834 {
 835     struct server *srv;
 836     const char *str;
 837
 838     if (argc < 8)
 839         return 0;
 840     if (self->uplink) {
 841         /* another server introduced us */
 842         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 843         if (!srv)
 844             return 0;
 845         srv->self_burst = argv[5][0] == 'J';
 846         srv->burst = 1;
 847     } else {
 848         /* this must be our uplink */
 849         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 850         if (!srv)
 851             return 0;
 852         srv->self_burst = argv[5][0] == 'J';
 853         srv->burst = 1;
 854         if ((argv[7][0] == '+') && !force_n2k) {
 855             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
 856         }
 857         send_burst();
 858     }
 859
 860     /* Fix up our timestamps if necessary. */
 861     if (srv->boot <= PREHISTORY) {
 862         /* Server from the mists of time.. */
 863         if (srv->hops == 1) {
 864             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
 865         }
 866     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
 867                && enabled_string(str)) {
 868         /* If we have a reliable clock, we just keep our current time. */
 869     } else {
 870         if (srv->boot <= self->boot) {
 871             /* The other server is older than us.  Accept their timestamp.
 872              * Alternately, we are same age, but we accept their time
 873              * since we are linking to them. */
 874             self->boot = srv->boot;
 875             ioset_set_time(srv->link);
 876         }
 877     }
 878     if (srv == self->uplink) {
 879         extern time_t burst_begin;
 880         burst_begin = now;
 881     }
 882     return 1;
 883 }
 884
 885 static CMD_FUNC(cmd_eob)
 886 {
 887     struct server *sender;
 888     dict_iterator_t it;
 889     unsigned int ii;
 890
 891     if (!(sender = GetServerH(origin)))
 892         return 0;
 893     if (sender == self->uplink) {
 894         cManager.uplink->state = CONNECTED;
 895         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
 896             irc_burst(iter_data(it));
 897         dict_delete(unbursted_channels);
 898         unbursted_channels = NULL;
 899         irc_eob();
 900         irc_eob_ack();
 901     }
 902     sender->self_burst = 0;
 903     recalc_bursts(sender);
 904     for (ii=0; ii<slf_used; ii++)
 905         slf_list[ii](sender);
 906     return 1;
 907 }
 908
 909 static CMD_FUNC(cmd_eob_ack)
 910 {
 911     extern time_t burst_begin;
 912
 913     if (GetServerH(origin) == self->uplink) {
 914         burst_length = now - burst_begin;
 915         self->self_burst = self->burst = 0;
 916     }
 917     cManager.uplink->state = CONNECTED;
 918     return 1;
 919 }
 920
 921 static CMD_FUNC(cmd_ping)
 922 {
 923     struct server *srv;
 924     struct userNode *un;
 925
 926     if(argc > 3)
 927         irc_pong(argv[2], argv[1]);
 928     else if ((srv = GetServerH(origin)))
 929         irc_pong(self->name, srv->numeric);
 930     else if ((un = GetUserH(origin)))
 931         irc_pong(self->name, un->numeric);
 932     else
 933         irc_pong(self->name, origin);
 934
 935     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 936     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 937     timeq_add(now + ping_freq, timed_send_ping, 0);
 938     received_ping();
 939     return 1;
 940 }
 941
 942 static CMD_FUNC(cmd_error_nick)
 943 {
 944     /* Go back to original IRC length .. and try to reconnect :/ */
 945     change_nicklen(9);
 946     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
 947     return 1;
 948 }
 949
 950 struct create_desc {
 951     struct userNode *user;
 952     time_t when;
 953 };
 954
 955 static void
 956 join_helper(struct chanNode *chan, void *data)
 957 {
 958     struct create_desc *cd = data;
 959     AddChannelUser(cd->user, chan);
 960 }
 961
 962 static void
 963 create_helper(char *name, void *data)
 964 {
 965     struct create_desc *cd = data;
 966
 967     if (!strcmp(name, "0")) {
 968         while (cd->user->channels.used > 0)
 969             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
 970         return;
 971     }
 972
 973     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
 974 }
 975
 976 static CMD_FUNC(cmd_create)
 977 {
 978     struct create_desc cd;
 979     struct userNode *user;
 980
 981     if ((argc < 3) || !(user = GetUserH(origin)))
 982         return 0;
 983     cd.user = user;
 984     cd.when = atoi(argv[2]);
 985     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
 986     return 1;
 987 }
 988
 989 static CMD_FUNC(cmd_join)
 990 {
 991     struct create_desc cd;
 992
 993     if (!(cd.user = GetUserH(origin)))
 994         return 0;
 995     if (argc < 2)
 996         return 0;
 997     else if (argc < 3)
 998         cd.when = now;
 999     else
1000         cd.when = atoi(argv[2]);
1001     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1002     return 1;
1003 }
1004
1005 static CMD_FUNC(cmd_pong)
1006 {
1007     if (argc < 3)
1008         return 0;
1009     if (!strcmp(argv[2], self->name)) {
1010         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1011         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1012         timeq_add(now + ping_freq, timed_send_ping, 0);
1013         received_ping();
1014     }
1015     return 1;
1016 }
1017
1018 static CMD_FUNC(cmd_nick)
1019 {
1020     struct userNode *user;
1021     if ((user = GetUserH(origin))) {
1022         /* nick change (since the source is a user numeric) */
1023         if (argc < 2)
1024             return 0;
1025         NickChange(user, argv[1], 1);
1026     } else {
1027         struct server *serv;
1028         char modes[MAXLEN];
1029         /* new nick */
1030         if (argc < 9)
1031             return 0;
1032         serv = GetServerH(origin);
1033         if (argc > 9)
1034             unsplit_string(argv+6, argc-9, modes);
1035         else
1036             strcpy(modes, "+");
1037         AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1038     }
1039     return 1;
1040 }
1041
1042 static CMD_FUNC(cmd_account)
1043 {
1044     struct userNode *user;
1045     struct server *server;
1046
1047     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1048         return 0; /* Origin must be server. */
1049
1050     /* This next line appears to tremple origin.. why? */
1051     user = GetUserN(argv[1]);
1052     if (!user)
1053         return 1; /* A QUIT probably passed the ACCOUNT. */
1054
1055     if(!strcmp(argv[2],"C"))
1056     {
1057         if(loc_auth(user, argv[4], argv[5]))
1058         {
1059             /* Return a AC A */
1060             putsock("%s " P10_ACCOUNT " %s A %s", self->numeric, server->numeric , argv[3]);
1061
1062         }
1063         else
1064         {
1065             /* Return a AC D */
1066             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1067         }
1068         return 1;
1069     }
1070     else if(!strcmp(argv[2],"R"))
1071        call_account_func(user, argv[3]);
1072     else
1073         call_account_func(user, argv[2]); /* For backward compatability */
1074     return 1;
1075 }
1076
1077 static CMD_FUNC(cmd_fakehost)
1078 {
1079     struct userNode *user;
1080
1081     if ((argc < 3) || !origin || !GetServerH(origin))
1082         return 0;
1083     if (!(user = GetUserN(argv[1])))
1084         return 1;
1085     assign_fakehost(user, argv[2], 0);
1086     return 1;
1087 }
1088
1089 static CMD_FUNC(cmd_burst)
1090 {
1091     extern int rel_age;
1092     char modes[MAXLEN], *members = "";
1093     static char exemptlist[MAXLEN], banlist[MAXLEN];
1094     unsigned int next = 3, res = 1;
1095     int ctype = 0, echeck = 0, bcheck = 0;
1096     struct chanNode *cNode;
1097     struct userNode *un;
1098     struct modeNode *mNode;
1099     long mode;
1100     char *user, *end, sep;
1101     time_t in_timestamp;
1102     char* parm = NULL;
1103
1104     if (argc < 3)
1105         return 0;
1106     modes[0] = 0;
1107
1108     exemptlist[0] = 0;
1109     banlist[0] = 0;
1110
1111     while (next < argc) {
1112         switch (argv[next][0]) {
1113         case '+': {
1114             const char *pos;
1115             int n_modes;
1116             for (pos=argv[next], n_modes = 1; *pos; pos++)
1117                 if ((*pos == 'k') || (*pos == 'l'))
1118                     n_modes++;
1119             unsplit_string(argv+next, n_modes, modes);
1120             next += n_modes;
1121             break;
1122         }
1123         case '%': {
1124             for(parm = mysep(&argv[next], " "); /* parm = first param */
1125                   parm;   /* While param is not null */
1126                   parm = mysep(&argv[next], " ")  /* parm = next param */
1127                )
1128             {
1129               switch (parm[0]) {
1130                 case '%': {
1131                   ctype = 1;
1132                   break;
1133                 }
1134                 case '~': {
1135                   ctype = 2;
1136                   break;
1137                 }
1138                 default: {
1139                   break;
1140                 }
1141               }
1142               if (ctype == 1) {
1143                 if (bcheck == 0) {
1144                   /* strip % char off start of very first ban */
1145                   strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1146                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1147                   bcheck = 1;
1148                 } else {
1149                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1150                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1151                 }
1152               } else if (ctype == 2) {
1153                 if (echeck == 0) {
1154                    echeck = 1;
1155                 } else {
1156                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1157                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1158                 }
1159               }
1160             }
1161             next++;
1162             break;
1163         }
1164         default: members = argv[next++]; break;
1165       }
1166     }
1167
1168     in_timestamp = atoi(argv[2]);
1169     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1170         cNode->timestamp = in_timestamp;
1171         dict_remove(unbursted_channels, cNode->name);
1172         irc_burst(cNode);
1173     }
1174     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1175
1176     /* Burst channel members in now. */
1177     for (user = members, sep = *members, mode = 0; sep; user = end) {
1178         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1179         sep = *end++; end[-1] = 0;
1180         if (sep == ':') {
1181             mode = 0;
1182             while ((sep = *end++)) {
1183                 if (sep == 'o')
1184                     mode |= MODE_CHANOP;
1185                 else if (sep == 'h')
1186                     mode |= MODE_HALFOP;
1187                 else if (sep == 'v')
1188                     mode |= MODE_VOICE;
1189                 else if (isdigit(sep)) {
1190                     mode |= MODE_CHANOP;
1191                     while (isdigit(*end)) end++;
1192                 } else
1193                     break;
1194             }
1195             if (rel_age < 0)
1196                 mode = 0;
1197         }
1198         if (!(un = GetUserN(user))) {
1199             res = 0;
1200             continue;
1201         }
1202         if ((mNode = AddChannelUser(un, cNode)))
1203             mNode->modes = mode;
1204     }
1205
1206     return res;
1207 }
1208
1209 static CMD_FUNC(cmd_mode)
1210 {
1211     struct chanNode *cn;
1212     struct userNode *un;
1213     char *sethost; // sethost - reed/apples
1214     int i; // sethost - reed/apples
1215
1216     if (argc < 3)
1217         return 0;
1218     if (!IsChannelName(argv[1])) {
1219         un = GetUserH(argv[1]);
1220         if (!un) {
1221             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1222             return 0;
1223         }
1224         // sethost - reed/apples
1225         if (argc == 3)
1226         mod_usermode(un, argv[2]);
1227         else {
1228           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1229           i = 0;
1230           while((sethost[i++] = *argv[2]++));
1231           i--;
1232          sethost[i++] = ' ';
1233           while((sethost[i++] = *argv[3]++));
1234           mod_usermode(un, sethost); // sethost - reed/apples
1235         }
1236
1237         return 1;
1238     }
1239
1240     if (!(cn = GetChannel(argv[1]))) {
1241         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1242         return 0;
1243     }
1244     if ((un = GetUserH(origin))) {
1245         struct modeNode *mn;
1246         /* Update idle time for person setting the mode */
1247         if ((mn = GetUserMode(cn, un)))
1248             mn->idle_since = now;
1249     } else {
1250         /* If it came from a server, reset timestamp to re-sync. */
1251         cn->timestamp = atoi(argv[argc-1]);
1252     }
1253
1254     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1255 }
1256
1257 static CMD_FUNC(cmd_opmode)
1258 {
1259     struct chanNode *cn;
1260     struct userNode *un;
1261
1262     if (argc < 3)
1263         return 0;
1264
1265     if (!(cn = GetChannel(argv[1]))) {
1266         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1267         return 0;
1268     }
1269     if (!(un = GetUserH(origin))) {
1270         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1271         return 0;
1272     }
1273     if (!IsOper(un)) {
1274         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1275         return 0;
1276     }
1277
1278     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1279 }
1280
1281 static int clear_chanmode(struct chanNode *channel, const char *modes);
1282
1283 static CMD_FUNC(cmd_clearmode)
1284 {
1285     struct chanNode *cn;
1286     struct userNode *un;
1287
1288     if (argc < 3)
1289         return 0;
1290
1291     if (!(cn = GetChannel(argv[1]))) {
1292         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1293         return 0;
1294     }
1295     if (!(un = GetUserH(origin))) {
1296         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1297         return 0;
1298     }
1299     if (!IsOper(un)) {
1300         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1301         return 0;
1302     }
1303
1304     return clear_chanmode(cn, argv[2]);
1305 }
1306
1307 static CMD_FUNC(cmd_topic)
1308 {
1309     struct chanNode *cn;
1310     time_t chan_ts, topic_ts;
1311
1312     if (argc < 3)
1313         return 0;
1314     if (!(cn = GetChannel(argv[1]))) {
1315         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1316         return 0;
1317     }
1318     if (argc >= 5) {
1319         /* Looks like an Asuka style topic burst. */
1320         chan_ts = atoi(argv[2]);
1321         topic_ts = atoi(argv[3]);
1322     } else {
1323         chan_ts = cn->timestamp;
1324         topic_ts = now;
1325     }
1326     SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1327     cn->topic_time = topic_ts;
1328     return 1;
1329 }
1330
1331 static CMD_FUNC(cmd_num_topic)
1332 {
1333     struct chanNode *cn;
1334
1335     if (!argv[0])
1336         return 0; /* huh? */
1337     if (argv[2]) {
1338         cn = GetChannel(argv[2]);
1339         if (!cn) {
1340             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1341             return 0;
1342         }
1343     } else
1344         return 0;
1345
1346     switch (atoi(argv[0])) {
1347     case 331:
1348         cn->topic_time = 0;
1349         break;  /* no topic */
1350     case 332:
1351         if (argc < 4)
1352             return 0;
1353         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1354         break;
1355     case 333:
1356         if (argc < 5)
1357             return 0;
1358         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1359         cn->topic_time = atoi(argv[4]);
1360         break;
1361     default:
1362         return 0; /* should never happen */
1363     }
1364     return 1;
1365 }
1366
1367 static CMD_FUNC(cmd_num_gline)
1368 {
1369     if (argc < 6)
1370         return 0;
1371     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1372     return 1;
1373 }
1374
1375 static CMD_FUNC(cmd_quit)
1376 {
1377     struct userNode *user;
1378     if (argc < 2)
1379         return 0;
1380     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1381      * call DelUser unless we have the user in our grasp. */
1382     if ((user = GetUserH(origin)))
1383         DelUser(user, NULL, false, argv[1]);
1384     return 1;
1385 }
1386
1387 static CMD_FUNC(cmd_kill)
1388 {
1389     struct userNode *user;
1390     if (argc < 2)
1391         return 0;
1392     user = GetUserN(argv[1]);
1393     if (!user) {
1394         /* If we get a KILL for a non-existent user, it could be a
1395          * Ghost response to a KILL we sent out earlier.  So we only
1396          * whine if the target is local.
1397          */
1398         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1399             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1400         return 0;
1401     }
1402
1403     if (IsLocal(user) && IsService(user)) {
1404         /* TODO: rate limit this so silly things don't happen. */
1405         ReintroduceUser(user);
1406         return 1;
1407     }
1408
1409     DelUser(user, NULL, false, argv[2]);
1410     return 1;
1411 }
1412
1413 static CMD_FUNC(cmd_part)
1414 {
1415     struct userNode *user;
1416
1417     if (argc < 2)
1418         return 0;
1419     user = GetUserH(origin);
1420     if (!user)
1421         return 0;
1422     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1423     return 1;
1424 }
1425
1426 static CMD_FUNC(cmd_kick)
1427 {
1428     if (argc < 3)
1429         return 0;
1430     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1431     return 1;
1432 }
1433
1434 static CMD_FUNC(cmd_squit)
1435 {
1436     struct server *server;
1437
1438     if (argc < 4)
1439         return 0;
1440     if (!(server = GetServerH(argv[1])))
1441         return 0;
1442
1443     if (server == self->uplink) {
1444         /* Force a reconnect to the currently selected server. */
1445         cManager.uplink->tries = 0;
1446         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1447         close_socket();
1448         return 1;
1449     }
1450
1451     DelServer(server, 0, argv[3]);
1452     return 1;
1453 }
1454
1455 static CMD_FUNC(cmd_privmsg)
1456 {
1457     struct privmsg_desc pd;
1458     if (argc != 3)
1459         return 0;
1460     pd.user = GetUserH(origin);
1461     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1462         return 1;
1463     pd.is_notice = 0;
1464     pd.text = argv[2];
1465     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1466     return 1;
1467 }
1468
1469 static CMD_FUNC(cmd_notice)
1470 {
1471     struct privmsg_desc pd;
1472     if (argc != 3)
1473         return 0;
1474     pd.user = GetUserH(origin);
1475     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1476         return 1;
1477     pd.is_notice = 1;
1478     pd.text = argv[2];
1479     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1480     return 1;
1481 }
1482
1483 static CMD_FUNC(cmd_away)
1484 {
1485     struct userNode *uNode;
1486
1487     uNode = GetUserH(origin);
1488     if (!uNode)
1489         return 1;
1490     if (argc < 2)
1491         uNode->modes &= ~FLAGS_AWAY;
1492     else
1493         uNode->modes |= FLAGS_AWAY;
1494     return 1;
1495 }
1496
1497 static CMD_FUNC(cmd_gline)
1498 {
1499     if (argc < 3)
1500         return 0;
1501     if (argv[2][0] == '+') {
1502         if (argc < 5)
1503             return 0;
1504         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1505         return 1;
1506     } else if (argv[2][0] == '-') {
1507         gline_remove(argv[2]+1, 0);
1508         return 1;
1509     } else
1510         return 0;
1511 }
1512
1513 static CMD_FUNC(cmd_svsnick)
1514 {
1515     struct userNode *target, *dest;
1516     if ((argc < 4)
1517         || !(target = GetUserN(argv[1]))
1518         || !IsLocal(target)
1519         || (dest = GetUserH(argv[2])))
1520         return 0;
1521     NickChange(target, argv[2], 0);
1522     return 1;
1523 }
1524
1525 static oper_func_t *of_list;
1526 static unsigned int of_size = 0, of_used = 0;
1527
1528 void
1529 free_user(struct userNode *user)
1530 {
1531     free(user->nick);
1532     free(user);
1533 }
1534
1535 static void
1536 parse_cleanup(void)
1537 {
1538     unsigned int nn;
1539     free(of_list);
1540     free(privmsg_funcs);
1541     free(notice_funcs);
1542     free(mcf_list);
1543     dict_delete(irc_func_dict);
1544     for (nn=0; nn<dead_users.used; nn++)
1545         free_user(dead_users.list[nn]);
1546     userList_clean(&dead_users);
1547 }
1548
1549 static void
1550 p10_conf_reload(void) {
1551     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1552 }
1553
1554 static void
1555 remove_unbursted_channel(struct chanNode *cNode) {
1556     if (unbursted_channels)
1557         dict_remove(unbursted_channels, cNode->name);
1558 }
1559
1560 void
1561 init_parse(void)
1562 {
1563     const char *str, *desc;
1564     int numnick, usermask, max_users;
1565     char numer[COMBO_NUMERIC_LEN+1];
1566
1567     /* read config items */
1568     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1569     ping_freq = str ? ParseInterval(str) : 120;
1570     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1571     ping_timeout = str ? ParseInterval(str) : 30;
1572     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1573     force_n2k = str ? enabled_string(str) : 1;
1574     str = conf_get_data("server/numeric", RECDB_QSTRING);
1575     if (!str) {
1576         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1577         exit(1);
1578     }
1579     numnick = atoi(str);
1580     str = conf_get_data("server/max_users", RECDB_QSTRING);
1581     max_users = str ? atoi(str) : 4096;
1582     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1583     usermask--;
1584     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1585         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1586     else
1587         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1588
1589     str = conf_get_data("server/his_servername", RECDB_QSTRING);
1590     his_servername = str ? strdup(str) : NULL;
1591     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1592     his_servercomment = str ? strdup(str) : NULL;
1593
1594     str = conf_get_data("server/hostname", RECDB_QSTRING);
1595     desc = conf_get_data("server/description", RECDB_QSTRING);
1596     if (!str || !desc) {
1597         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1598         exit(1);
1599     }
1600     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1601     conf_register_reload(p10_conf_reload);
1602
1603     irc_func_dict = dict_new();
1604     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1605     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1606     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1607     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1608     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1609     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1610     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1611     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1612     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1613     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1614     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1615     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1616     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1617     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1618     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1619     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1620     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1621     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1622     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1623     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1624     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1625     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1626     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1627     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1628     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1629     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1630     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1631     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1632     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1633     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1634     dict_insert(irc_func_dict, CMD_PART, cmd_part);
1635     dict_insert(irc_func_dict, TOK_PART, cmd_part);
1636     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1637     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1638     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1639     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1640     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1641     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1642     dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1643     dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1644     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1645     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1646     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1647     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1648     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1649     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1650     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1651     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1652     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1653     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1654     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1655     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1656     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1657     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1658     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1659     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1660     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1661     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1662     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1663     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1664     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1665     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1666     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1667     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1668
1669     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1670      * Apparently to obliterate channels from any servers that think they
1671      * exist?
1672      */
1673     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1674     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1675     /* Ignore invites */
1676     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1677     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1678     /* DESYNCH is just informational, so ignore it */
1679     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1680     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1681     /* Ignore channel operator notices. */
1682     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1683     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1684     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1685     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1686     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1687     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1688     /* Ignore opers being silly. */
1689     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1690     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1691     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1692     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1693     /* We have reliable clock!  Always!  Wraaa! */
1694     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1695     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1696     /* handle topics */
1697     dict_insert(irc_func_dict, "331", cmd_num_topic);
1698     dict_insert(irc_func_dict, "332", cmd_num_topic);
1699     dict_insert(irc_func_dict, "333", cmd_num_topic);
1700     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1701     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1702     /* ban list resetting */
1703     /* "stats g" responses */
1704     dict_insert(irc_func_dict, "247", cmd_num_gline);
1705     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1706     /* other numeric responses we might get */
1707     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1708     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1709     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1710     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1711     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1712     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1713     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1714     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1715
1716     num_privmsg_funcs = 16;
1717     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1718     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1719
1720     num_notice_funcs = 16;
1721     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1722     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1723
1724     userList_init(&dead_users);
1725     reg_del_channel_func(remove_unbursted_channel);
1726     reg_exit_func(parse_cleanup);
1727 }
1728
1729 int
1730 parse_line(char *line, int recursive)
1731 {
1732     char *argv[MAXNUMPARAMS], *origin;
1733     int argc, cmd, res=0;
1734     cmd_func_t *func;
1735
1736     argc = split_line(line, true, MAXNUMPARAMS, argv);
1737     cmd = self->uplink || !argv[0][1] || !argv[0][2];
1738     if (argc > cmd) {
1739         if (cmd) {
1740             if (argv[0][0] == ':') {
1741                 origin = argv[0]+1;
1742             } else if (!argv[0][1] || !argv[0][2]) {
1743                 struct server *sNode = GetServerN(argv[0]);
1744                 origin = sNode ? sNode->name : 0;
1745             } else {
1746                 struct userNode *uNode = GetUserN(argv[0]);
1747                 origin = uNode ? uNode->nick : 0;
1748             }
1749         } else
1750             origin = 0;
1751         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1752             res = func(origin, argc-cmd, argv+cmd);
1753     }
1754     if (!res) {
1755         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1756     } else if (!recursive) {
1757         unsigned int i;
1758         for (i=0; i<dead_users.used; i++)
1759             free_user(dead_users.list[i]);
1760         dead_users.used = 0;
1761     }
1762     return res;
1763 }
1764
1765 static void
1766 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1767 {
1768     char *j, old;
1769     do {
1770         j = target_list;
1771         while (*j != 0 && *j != ',')
1772             j++;
1773         old = *j;
1774         *j = 0;
1775         if (IsChannelName(target_list)
1776             || (target_list[0] == '0' && target_list[1] == '\0')) {
1777             struct chanNode *chan = GetChannel(target_list);
1778             if (chan) {
1779                 if (cf)
1780                     cf(chan, data);
1781             } else {
1782                 if (nc)
1783                     nc(target_list, data);
1784             }
1785         } else {
1786             struct userNode *user;
1787             struct privmsg_desc *pd = data;
1788
1789             pd->is_qualified = 0;
1790             if (*target_list == '@') {
1791                 user = NULL;
1792             } else if (strchr(target_list, '@')) {
1793                 struct server *server;
1794
1795                 pd->is_qualified = 1;
1796                 user = GetUserH(strtok(target_list, "@"));
1797                 server = GetServerH(strtok(NULL, "@"));
1798
1799                 if (user && (user->uplink != server)) {
1800                     /* Don't attempt to index into any arrays
1801                        using a user's numeric on another server. */
1802                     user = NULL;
1803                 }
1804             } else {
1805                 user = GetUserN(target_list);
1806             }
1807
1808             if (user) {
1809                 if (uf)
1810                     uf(user, data);
1811             } else {
1812                 if (nu)
1813                     nu(target_list, data);
1814             }
1815         }
1816         target_list = j+1;
1817     } while (old == ',');
1818 }
1819
1820 static int
1821 get_local_numeric(void)
1822 {
1823     static unsigned int next_numeric = 0;
1824     if (self->clients > self->num_mask)
1825         return -1;
1826     while (self->users[next_numeric])
1827         if (++next_numeric > self->num_mask)
1828             next_numeric = 0;
1829     return next_numeric;
1830 }
1831
1832 static void
1833 make_numeric(struct server *svr, int local_num, char *outbuf)
1834 {
1835     int slen, llen;
1836
1837     if (force_n2k || svr->numeric[1]) {
1838         slen = 2;
1839         llen = 3;
1840     } else {
1841         slen = 1;
1842         llen = (local_num < 64*64) ? 2 : 3;
1843     }
1844     strncpy(outbuf, svr->numeric, slen);
1845     inttobase64(outbuf+slen, local_num, llen);
1846     outbuf[slen+llen] = 0;
1847 }
1848
1849 struct server *
1850 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1851 {
1852     struct server* sNode;
1853     int slen, mlen;
1854
1855     if ((sNode = GetServerN(numeric))) {
1856         /* This means we're trying to re-add an existant server.
1857          * To be safe, we should forget the previous incarnation.
1858          * (And all its linked servers.)
1859          *
1860          * It usually only happens in replays when the original
1861          * had a ping timeout and the replay didn't (because
1862          * replaying a ping timeout invariably gets things wrong).
1863          */
1864         DelServer(sNode, 0, NULL);
1865     }
1866
1867     switch (strlen(numeric)) {
1868     case 5: slen = 2; mlen = 3; break;
1869     case 4: slen = 1; mlen = 3; break;
1870     case 3: slen = 1; mlen = 2; break;
1871     default:
1872         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1873         return NULL;
1874     }
1875
1876     sNode = calloc(1, sizeof(*sNode));
1877     sNode->uplink = uplink;
1878     safestrncpy(sNode->name, name, sizeof(sNode->name));
1879     sNode->num_mask = base64toint(numeric+slen, mlen);
1880     sNode->hops = hops;
1881     sNode->boot = boot;
1882     sNode->link = link;
1883     strncpy(sNode->numeric, numeric, slen);
1884     safestrncpy(sNode->description, description, sizeof(sNode->description));
1885     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1886     serverList_init(&sNode->children);
1887     if (sNode->uplink) {
1888         /* uplink may be NULL if we're just building ourself */
1889         serverList_append(&sNode->uplink->children, sNode);
1890     }
1891     servers_num[base64toint(numeric, slen)] = sNode;
1892     dict_insert(servers, sNode->name, sNode);
1893     return sNode;
1894 }
1895
1896 void DelServer(struct server* serv, int announce, const char *message)
1897 {
1898     unsigned int i;
1899
1900     /* If we receive an ERROR command before the SERVER
1901      * command a NULL server can be passed */
1902     if (!serv)
1903         return;
1904
1905     /* Hrm, what's the right way to SQUIT some other server?
1906      * (This code is only to handle killing juped servers.) */
1907     if (announce && (serv->uplink == self) && (serv != self->uplink))
1908         irc_squit(serv, message, NULL);
1909
1910     /* must recursively remove servers linked to this one first */
1911     for (i=serv->children.used;i>0;)
1912         if (serv->children.list[--i] != self)
1913             DelServer(serv->children.list[i], false, NULL);
1914
1915     /* clean up server's user hash tables */
1916     for (i=0;i<=serv->num_mask;i++)
1917         if (serv->users[i])
1918             DelUser(serv->users[i], NULL, false, "server delinked");
1919
1920     /* delete server */
1921     if (serv->uplink)
1922         serverList_remove(&serv->uplink->children, serv);
1923     if (serv == self->uplink)
1924         self->uplink = NULL;
1925     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1926     dict_remove(servers, serv->name);
1927     serverList_clean(&serv->children);
1928     free(serv->users);
1929     free(serv);
1930 }
1931
1932 struct userNode *
1933 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
1934 {
1935     char numeric[COMBO_NUMERIC_LEN+1];
1936     int local_num = get_local_numeric();
1937     time_t timestamp = now;
1938     struct userNode *old_user = GetUserH(nick);
1939
1940     if (old_user) {
1941         if (IsLocal(old_user))
1942             return old_user;
1943         timestamp = old_user->timestamp - 1;
1944     }
1945     if (local_num == -1) {
1946         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1947         return 0;
1948     }
1949     if (!hostname)
1950         hostname = self->name;
1951     make_numeric(self, local_num, numeric);
1952     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
1953 }
1954
1955 struct userNode *
1956 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1957 {
1958     char numeric[COMBO_NUMERIC_LEN+1];
1959     int local_num = get_local_numeric();
1960     time_t timestamp = now;
1961     struct userNode *old_user = GetUserH(nick);
1962
1963     if (old_user) {
1964         if (IsLocal(old_user))
1965             return old_user;
1966         timestamp = old_user->timestamp - 1;
1967     }
1968     if (local_num == -1) {
1969         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
1970         return 0;
1971     }
1972     make_numeric(self, local_num, numeric);
1973     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
1974 }
1975
1976 int
1977 is_valid_nick(const char *nick) {
1978     /* IRC has some of The Most Fucked-Up ideas about character sets
1979      * in the world.. */
1980     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
1981         return 0;
1982     for (++nick; *nick; ++nick)
1983         if (!isalnum(*nick) && !strchr("{|}~[\\]^-_`", *nick))
1984             return 0;
1985     if (strlen(nick) > nicklen)
1986         return 0;
1987     return 1;
1988 }
1989
1990 static struct userNode*
1991 AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip)
1992 {
1993     struct userNode *oldUser, *uNode;
1994     unsigned int n, ignore_user;
1995
1996     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
1997         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
1998         return NULL;
1999     }
2000
2001     if (!uplink) {
2002         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2003         return NULL;
2004     }
2005
2006     if (uplink != GetServerN(numeric)) {
2007         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2008         return NULL;
2009     }
2010
2011     if (!is_valid_nick(nick)) {
2012         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2013         return NULL;
2014     }
2015
2016     ignore_user = 0;
2017     if ((oldUser = GetUserH(nick))) {
2018         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2019             /* The service should collide the new user off. */
2020             oldUser->timestamp = timestamp - 1;
2021             irc_user(oldUser);
2022         }
2023         if (oldUser->timestamp > timestamp) {
2024             /* "Old" user is really newer; remove them */
2025             DelUser(oldUser, 0, 1, "Overruled by older nick");
2026         } else {
2027             /* User being added is too new; do not add them to
2028              * clients, but do add them to the server's list, since it
2029              * will send a KILL and QUIT soon. */
2030             ignore_user = 1;
2031         }
2032     }
2033
2034     /* create new usernode and set all values */
2035     uNode = calloc(1, sizeof(*uNode));
2036     uNode->nick = strdup(nick);
2037     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2038     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2039     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2040     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2041     uNode->ip.s_addr = htonl(base64toint(realip, 6));
2042     uNode->timestamp = timestamp;
2043     modeList_init(&uNode->channels);
2044     uNode->uplink = uplink;
2045     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2046         uNode->uplink->max_clients = uNode->uplink->clients;
2047     }
2048     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2049     uNode->uplink->users[uNode->num_local] = uNode;
2050     mod_usermode(uNode, modes);
2051     if (ignore_user)
2052         return uNode;
2053
2054     dict_insert(clients, uNode->nick, uNode);
2055     if (dict_size(clients) > max_clients) {
2056         max_clients = dict_size(clients);
2057         max_clients_time = now;
2058     }
2059     if (IsLocal(uNode))
2060         irc_user(uNode);
2061     for (n=0; n<nuf_used; n++)
2062         if (nuf_list[n](uNode))
2063             break;
2064     return uNode;
2065 }
2066
2067 /* removes user from it's server's hash table and nick hash table */
2068 void
2069 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2070 {
2071     unsigned int n;
2072
2073     /* mark them as dead, in case anybody cares */
2074     user->dead = 1;
2075
2076     /* remove user from all channels */
2077     while (user->channels.used > 0)
2078         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2079
2080     /* Call these in reverse order so ChanServ can update presence
2081        information before NickServ nukes the handle_info. */
2082     for (n = duf_used; n > 0; )
2083         duf_list[--n](user, killer, why);
2084
2085     user->uplink->clients--;
2086     user->uplink->users[user->num_local] = NULL;
2087     if (IsOper(user))
2088         userList_remove(&curr_opers, user);
2089     /* remove from global dictionary, but not if after a collide */
2090     if (user == dict_find(clients, user->nick, NULL))
2091         dict_remove(clients, user->nick);
2092
2093     if (IsInvisible(user))
2094         invis_clients--;
2095
2096     if (announce) {
2097         if (IsLocal(user))
2098             irc_quit(user, why);
2099         else
2100             irc_kill(killer, user, why);
2101     }
2102
2103     modeList_clean(&user->channels);
2104     /* We don't free them, in case we try to privmsg them or something
2105      * (like when a stupid oper kills themself).  We just put them onto
2106      * a list of clients that get freed after processing each line.
2107      */
2108     if (dead_users.size)
2109         userList_append(&dead_users, user);
2110     else
2111         free_user(user);
2112 }
2113
2114 void mod_usermode(struct userNode *user, const char *mode_change) {
2115     static void call_oper_funcs(struct userNode *user);
2116     int add = 1;
2117     const char *word = mode_change;
2118
2119     if (!user || !mode_change)
2120         return;
2121     while (*word != ' ' && *word) word++;
2122     while (*word == ' ') word++;
2123     while (1) {
2124 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2125         switch (*mode_change++) {
2126         case 0: case ' ': return;
2127         case '+': add = 1; break;
2128         case '-': add = 0; break;
2129         case 'o':
2130             do_user_mode(FLAGS_OPER);
2131             if (add) {
2132                 userList_append(&curr_opers, user);
2133                 call_oper_funcs(user);
2134             } else {
2135                 userList_remove(&curr_opers, user);
2136             }
2137             break;
2138         case 'O': do_user_mode(FLAGS_LOCOP); break;
2139         case 'i': do_user_mode(FLAGS_INVISIBLE);
2140             if (add)
2141                 invis_clients++;
2142             else
2143                 invis_clients--;
2144             break;
2145         case 'w': do_user_mode(FLAGS_WALLOP); break;
2146         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2147         case 'd': do_user_mode(FLAGS_DEAF); break;
2148         case 'k': do_user_mode(FLAGS_SERVICE); break;
2149         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2150         // sethost - reed/apples
2151         // case 'h': do_user_mode(FLAGS_HELPER); break;
2152         // I check if there's an 'h' in the first part, and if there,
2153         // then everything after the space becomes their new host.
2154         case 'h': do_user_mode(FLAGS_SETHOST);
2155             if (*word) {
2156                 char sethost[MAXLEN];
2157                 unsigned int ii;
2158                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2159                     sethost[ii++] = *word++;
2160                 sethost[ii] = 0;
2161                 while (*word == ' ')
2162                     word++;
2163                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2164             }
2165             break;
2166         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2167         case 'r':
2168             if (*word) {
2169                 char tag[MAXLEN];
2170                 unsigned int ii;
2171                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2172                     tag[ii++] = *word++;
2173                 tag[ii] = 0;
2174                 while (*word == ' ')
2175                     word++;
2176                 call_account_func(user, tag);
2177             }
2178             break;
2179         case 'f':
2180             if (*word) {
2181                 char host[MAXLEN];
2182                 unsigned int ii;
2183                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2184                     host[ii++] = *word++;
2185                 host[ii] = 0;
2186                 while (*word == ' ')
2187                     word++;
2188                 assign_fakehost(user, host, 0);
2189             }
2190             break;
2191         }
2192 #undef do_user_mode
2193     }
2194 }
2195
2196 struct mod_chanmode *
2197 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2198 {
2199     struct mod_chanmode *change;
2200     unsigned int ii, in_arg, ch_arg, add;
2201
2202     if (argc == 0)
2203         return NULL;
2204     if (!(change = mod_chanmode_alloc(argc - 1)))
2205         return NULL;
2206
2207     for (ii = ch_arg = 0, in_arg = add = 1;
2208          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2209          ++ii) {
2210         switch (modes[0][ii]) {
2211         case '+':
2212             add = 1;
2213             break;
2214         case '-':
2215             add = 0;
2216             break;
2217 #define do_chan_mode(FLAG) do { if (add) change->modes_set |= (FLAG), change->modes_clear &= ~(FLAG); else change->modes_clear |= (FLAG), change->modes_set &= ~(FLAG); } while(0)
2218         case 'C': do_chan_mode(MODE_NOCTCPS); break;
2219         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2220         case 'c': do_chan_mode(MODE_NOCOLORS); break;
2221         case 'i': do_chan_mode(MODE_INVITEONLY); break;
2222         case 'm': do_chan_mode(MODE_MODERATED); break;
2223         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2224         case 'p': do_chan_mode(MODE_PRIVATE); break;
2225         case 'r': do_chan_mode(MODE_REGONLY); break;
2226         case 's': do_chan_mode(MODE_SECRET); break;
2227         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2228         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2229         case 'M': do_chan_mode(MODE_MODUNREG); break;
2230         case 'N': do_chan_mode(MODE_NONOTICE); break;
2231         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2232         case 'T': do_chan_mode(MODE_NOAMSG); break;
2233         case 'O': do_chan_mode(MODE_OPERSONLY); break;
2234 //   uncomment this when ssl is enabled on the network.
2235 //        case 'z': do_chan_mode(MODE_SSLONLY); break;
2236 #undef do_chan_mode
2237         case 'l':
2238             if (add) {
2239                 if (in_arg >= argc)
2240                     goto error;
2241                 change->modes_set |= MODE_LIMIT;
2242                 change->new_limit = atoi(modes[in_arg++]);
2243             } else {
2244                 change->modes_set &= ~MODE_LIMIT;
2245                 change->modes_clear |= MODE_LIMIT;
2246             }
2247             break;
2248         case 'k':
2249             if (add) {
2250                 if (in_arg >= argc)
2251                     goto error;
2252                 change->modes_set |= MODE_KEY;
2253                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2254             } else {
2255                 change->modes_clear |= MODE_KEY;
2256                 if (!(flags & MCP_KEY_FREE)) {
2257                     if (in_arg >= argc)
2258                         goto error;
2259                     in_arg++;
2260                 }
2261             }
2262             break;
2263         case 'b':
2264             if (!(flags & MCP_ALLOW_OVB))
2265                 goto error;
2266             if (in_arg >= argc)
2267                 goto error;
2268             change->args[ch_arg].mode = MODE_BAN;
2269             if (!add)
2270                 change->args[ch_arg].mode |= MODE_REMOVE;
2271             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2272             break;
2273         case 'e':
2274             if (!(flags & MCP_ALLOW_OVB))
2275                 goto error;
2276             if (in_arg >= argc)
2277                 goto error;
2278             change->args[ch_arg].mode = MODE_EXEMPT;
2279             if (!add)
2280                 change->args[ch_arg].mode |= MODE_REMOVE;
2281             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2282             break;
2283         case 'o': case 'h': case 'v':
2284         {
2285             struct userNode *victim;
2286             if (!(flags & MCP_ALLOW_OVB))
2287                 goto error;
2288             if (in_arg >= argc)
2289                 goto error;
2290
2291             if (modes[0][ii] == 'o')
2292                 change->args[ch_arg].mode = MODE_CHANOP;
2293             else if (modes[0][ii] == 'h')
2294                 change->args[ch_arg].mode = MODE_HALFOP;
2295             else if (modes[0][ii] == 'v')
2296                 change->args[ch_arg].mode = MODE_VOICE;
2297
2298             if (!add)
2299                 change->args[ch_arg].mode |= MODE_REMOVE;
2300             if (flags & MCP_FROM_SERVER)
2301                 victim = GetUserN(modes[in_arg++]);
2302             else
2303                 victim = GetUserH(modes[in_arg++]);
2304             if (!victim)
2305                 continue;
2306             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2307                 ch_arg++;
2308             break;
2309         }
2310         default:
2311             if (!(flags & MCP_FROM_SERVER))
2312                 goto error;
2313             break;
2314         }
2315     }
2316     change->argc = ch_arg; /* in case any turned out to be ignored */
2317     if (change->modes_set & MODE_SECRET) {
2318         change->modes_set &= ~(MODE_PRIVATE);
2319         change->modes_clear |= MODE_PRIVATE;
2320     } else if (change->modes_set & MODE_PRIVATE) {
2321         change->modes_set &= ~(MODE_SECRET);
2322         change->modes_clear |= MODE_SECRET;
2323     }
2324     return change;
2325   error:
2326     mod_chanmode_free(change);
2327     return NULL;
2328 }
2329
2330 struct chanmode_buffer {
2331     char modes[MAXLEN];
2332     char args[MAXLEN];
2333     struct chanNode *channel;
2334     struct userNode *actor;
2335     unsigned int modes_used;
2336     unsigned int args_used;
2337     size_t chname_len;
2338     unsigned int is_add : 1;
2339     unsigned int is_chanop : 1;
2340 };
2341
2342 static void
2343 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2344 {
2345     size_t arg_len = strlen(arg);
2346     if (buf->modes_used > (MAXMODEPARAMS) ||
2347         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2348         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2349         buf->modes[buf->modes_used + buf->args_used] = '\0';
2350         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2351         buf->modes[0] = buf->is_add ? '+' : '-';
2352         buf->modes_used = 1;
2353         buf->args_used = 0;
2354     }
2355     buf->modes[buf->modes_used++] = ch;
2356     buf->args[buf->args_used++] = ' ';
2357     memcpy(buf->args + buf->args_used, arg, arg_len);
2358     buf->args_used += arg_len;
2359 }
2360
2361 void
2362 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2363 {
2364     struct chanmode_buffer chbuf;
2365     unsigned int arg;
2366     struct modeNode *mn;
2367     char int_buff[32], mode = '\0';
2368
2369     assert(change->argc <= change->alloc_argc);
2370     memset(&chbuf, 0, sizeof(chbuf));
2371     chbuf.channel = channel;
2372     chbuf.actor = who;
2373     chbuf.chname_len = strlen(channel->name);
2374
2375     mn = GetUserMode(channel, who);
2376     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2377         chbuf.is_chanop = 1;
2378
2379     /* First remove modes */
2380     chbuf.is_add = 0;
2381     if (change->modes_clear) {
2382         if (mode != '-')
2383             chbuf.modes[chbuf.modes_used++] = mode = '-';
2384 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2385         DO_MODE_CHAR(PRIVATE, 'p');
2386         DO_MODE_CHAR(SECRET, 's');
2387         DO_MODE_CHAR(MODERATED, 'm');
2388         DO_MODE_CHAR(TOPICLIMIT, 't');
2389         DO_MODE_CHAR(INVITEONLY, 'i');
2390         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2391         DO_MODE_CHAR(LIMIT, 'l');
2392         DO_MODE_CHAR(DELAYJOINS, 'D');
2393         DO_MODE_CHAR(REGONLY, 'r');
2394         DO_MODE_CHAR(NOCOLORS, 'c');
2395         DO_MODE_CHAR(NOCTCPS, 'C');
2396         DO_MODE_CHAR(STRIPCOLOR, 'S');
2397         DO_MODE_CHAR(MODUNREG, 'M');
2398         DO_MODE_CHAR(NONOTICE, 'N');
2399         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2400         DO_MODE_CHAR(NOAMSG, 'T');
2401         DO_MODE_CHAR(OPERSONLY, 'O');
2402         // uncomment this for ssl support
2403         //DO_MODE_CHAR(SSLONLY, 'z');
2404 #undef DO_MODE_CHAR
2405         if (change->modes_clear & channel->modes & MODE_KEY)
2406             mod_chanmode_append(&chbuf, 'k', channel->key);
2407     }
2408     for (arg = 0; arg < change->argc; ++arg) {
2409         if (!(change->args[arg].mode & MODE_REMOVE))
2410             continue;
2411         if (mode != '-')
2412             chbuf.modes[chbuf.modes_used++] = mode = '-';
2413         switch (change->args[arg].mode & ~MODE_REMOVE) {
2414         case MODE_BAN:
2415             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2416             break;
2417         case MODE_EXEMPT:
2418             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2419             break;
2420         default:
2421             if (change->args[arg].mode & MODE_CHANOP)
2422                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2423             if (change->args[arg].mode & MODE_HALFOP)
2424                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2425             if (change->args[arg].mode & MODE_VOICE)
2426                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2427             break;
2428         }
2429     }
2430
2431     /* Then set them */
2432     chbuf.is_add = 1;
2433     if (change->modes_set) {
2434         if (mode != '+')
2435             chbuf.modes[chbuf.modes_used++] = mode = '+';
2436 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2437         DO_MODE_CHAR(PRIVATE, 'p');
2438         DO_MODE_CHAR(SECRET, 's');
2439         DO_MODE_CHAR(MODERATED, 'm');
2440         DO_MODE_CHAR(TOPICLIMIT, 't');
2441         DO_MODE_CHAR(INVITEONLY, 'i');
2442         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2443         DO_MODE_CHAR(DELAYJOINS, 'D');
2444         DO_MODE_CHAR(REGONLY, 'r');
2445         DO_MODE_CHAR(NOCOLORS, 'c');
2446         DO_MODE_CHAR(NOCTCPS, 'C');
2447         DO_MODE_CHAR(STRIPCOLOR, 'S');
2448         DO_MODE_CHAR(MODUNREG, 'M');
2449         DO_MODE_CHAR(NONOTICE, 'N');
2450         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2451         DO_MODE_CHAR(NOAMSG, 'T');
2452         DO_MODE_CHAR(OPERSONLY, 'O');
2453         // uncomment this for ssl support
2454         //DO_MODE_CHAR(SSLONLY, 'z');
2455 #undef DO_MODE_CHAR
2456         if(change->modes_set & MODE_KEY)
2457             mod_chanmode_append(&chbuf, 'k', change->new_key);
2458         if(change->modes_set & MODE_LIMIT) {
2459             sprintf(int_buff, "%d", change->new_limit);
2460             mod_chanmode_append(&chbuf, 'l', int_buff);
2461         }
2462     }
2463     for (arg = 0; arg < change->argc; ++arg) {
2464         if (change->args[arg].mode & MODE_REMOVE)
2465             continue;
2466         if (mode != '+')
2467             chbuf.modes[chbuf.modes_used++] = mode = '+';
2468         switch (change->args[arg].mode) {
2469         case MODE_BAN:
2470             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2471             break;
2472         case MODE_EXEMPT:
2473             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2474             break;
2475         default:
2476             if (change->args[arg].mode & MODE_CHANOP)
2477                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2478             if (change->args[arg].mode & MODE_HALFOP)
2479                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2480             if (change->args[arg].mode & MODE_VOICE)
2481                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2482             break;
2483         }
2484     }
2485
2486     /* Flush the buffer and apply changes locally */
2487     if (chbuf.modes_used > 0) {
2488         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2489         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2490         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2491     }
2492     mod_chanmode_apply(who, channel, change);
2493 }
2494
2495 char *
2496 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2497 {
2498     unsigned int used = 0;
2499     assert(change->argc <= change->alloc_argc);
2500     if (change->modes_clear) {
2501         outbuff[used++] = '-';
2502 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2503         DO_MODE_CHAR(PRIVATE, 'p');
2504         DO_MODE_CHAR(SECRET, 's');
2505         DO_MODE_CHAR(MODERATED, 'm');
2506         DO_MODE_CHAR(TOPICLIMIT, 't');
2507         DO_MODE_CHAR(INVITEONLY, 'i');
2508         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2509         DO_MODE_CHAR(LIMIT, 'l');
2510         DO_MODE_CHAR(KEY, 'k');
2511         DO_MODE_CHAR(DELAYJOINS, 'D');
2512         DO_MODE_CHAR(REGONLY, 'r');
2513         DO_MODE_CHAR(NOCOLORS, 'c');
2514         DO_MODE_CHAR(NOCTCPS, 'C');
2515         DO_MODE_CHAR(STRIPCOLOR, 'S');
2516         DO_MODE_CHAR(MODUNREG, 'M');
2517         DO_MODE_CHAR(NONOTICE, 'N');
2518         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2519         DO_MODE_CHAR(NOAMSG, 'T');
2520         DO_MODE_CHAR(OPERSONLY, 'O');
2521         // uncomment this for ssl support
2522         //DO_MODE_CHAR(SSLONLY, 'z');
2523 #undef DO_MODE_CHAR
2524     }
2525     if (change->modes_set) {
2526         outbuff[used++] = '+';
2527 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2528         DO_MODE_CHAR(PRIVATE, 'p');
2529         DO_MODE_CHAR(SECRET, 's');
2530         DO_MODE_CHAR(MODERATED, 'm');
2531         DO_MODE_CHAR(TOPICLIMIT, 't');
2532         DO_MODE_CHAR(INVITEONLY, 'i');
2533         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2534         DO_MODE_CHAR(DELAYJOINS, 'D');
2535         DO_MODE_CHAR(REGONLY, 'r');
2536         DO_MODE_CHAR(NOCOLORS, 'c');
2537         DO_MODE_CHAR(NOCTCPS, 'C');
2538         DO_MODE_CHAR(STRIPCOLOR, 'S');
2539         DO_MODE_CHAR(MODUNREG, 'M');
2540         DO_MODE_CHAR(NONOTICE, 'N');
2541         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2542         DO_MODE_CHAR(NOAMSG, 'T');
2543         DO_MODE_CHAR(OPERSONLY, 'O');
2544         // uncomment this for ssl support
2545         //DO_MODE_CHAR(SSLONLY, 'z');
2546 #undef DO_MODE_CHAR
2547         switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2548         case MODE_KEY|MODE_LIMIT:
2549             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2550             break;
2551         case MODE_KEY:
2552             used += sprintf(outbuff+used, "k %s", change->new_key);
2553             break;
2554         case MODE_LIMIT:
2555             used += sprintf(outbuff+used, "l %d", change->new_limit);
2556             break;
2557         }
2558     }
2559     outbuff[used] = 0;
2560     return outbuff;
2561 }
2562
2563 static int
2564 clear_chanmode(struct chanNode *channel, const char *modes)
2565 {
2566     unsigned int remove;
2567
2568     for (remove = 0; *modes; modes++) {
2569         switch (*modes) {
2570         case 'o': remove |= MODE_CHANOP; break;
2571         case 'h': remove |= MODE_HALFOP; break;
2572         case 'v': remove |= MODE_VOICE; break;
2573         case 'p': remove |= MODE_PRIVATE; break;
2574         case 's': remove |= MODE_SECRET; break;
2575         case 'm': remove |= MODE_MODERATED; break;
2576         case 't': remove |= MODE_TOPICLIMIT; break;
2577         case 'i': remove |= MODE_INVITEONLY; break;
2578         case 'n': remove |= MODE_NOPRIVMSGS; break;
2579         case 'k':
2580             remove |= MODE_KEY;
2581             channel->key[0] = '\0';
2582             break;
2583         case 'l':
2584             remove |= MODE_LIMIT;
2585             channel->limit = 0;
2586             break;
2587         case 'b': remove |= MODE_BAN; break;
2588         case 'e': remove |= MODE_EXEMPT; break;
2589         case 'D': remove |= MODE_DELAYJOINS; break;
2590         case 'r': remove |= MODE_REGONLY; break;
2591         case 'c': remove |= MODE_NOCOLORS;
2592         case 'C': remove |= MODE_NOCTCPS; break;
2593         case 'S': remove |= MODE_STRIPCOLOR; break;
2594         case 'M': remove |= MODE_MODUNREG; break;
2595         case 'N': remove |= MODE_NONOTICE; break;
2596         case 'Q': remove |= MODE_NOQUITMSGS; break;
2597         case 'T': remove |= MODE_NOAMSG; break;
2598         case 'O': remove |= MODE_OPERSONLY; break;
2599         }
2600     }
2601
2602     if (!remove)
2603         return 1;
2604
2605     /* Remove simple modes. */
2606     channel->modes &= ~remove;
2607
2608     /* If removing bans, kill 'em all. */
2609     if ((remove & MODE_BAN) && channel->banlist.used) {
2610         unsigned int i;
2611         for (i=0; i<channel->banlist.used; i++)
2612             free(channel->banlist.list[i]);
2613         channel->banlist.used = 0;
2614     }
2615
2616     /* If removing exempts, kill 'em all. */
2617     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2618         unsigned int i;
2619         for (i=0; i<channel->exemptlist.used; i++)
2620             free(channel->exemptlist.list[i]);
2621         channel->exemptlist.used = 0;
2622     }
2623
2624     /* Remove member modes. */
2625     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2626         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2627         unsigned int i;
2628
2629         for (i = 0; i < channel->members.used; i++)
2630             channel->members.list[i]->modes &= mask;
2631     }
2632
2633     return 1;
2634 }
2635
2636 void
2637 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2638 {
2639     unsigned int numeric = user->num_local;
2640     if (numeric >= num_privmsg_funcs) {
2641         int newnum = numeric + 8;
2642         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2643         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2644         num_privmsg_funcs = newnum;
2645     }
2646     if (privmsg_funcs[numeric])
2647         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2648     privmsg_funcs[numeric] = handler;
2649 }
2650
2651 void
2652 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2653 {
2654     unsigned int x;
2655
2656     if (!user || handler)
2657       return; /* this really only works with users */
2658
2659     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2660
2661     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2662        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2663
2664     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2665     num_privmsg_funcs--;
2666 }
2667
2668
2669 void
2670 reg_notice_func(struct userNode *user, privmsg_func_t handler)
2671 {
2672     unsigned int numeric = user->num_local;
2673     if (numeric >= num_notice_funcs) {
2674         int newnum = numeric + 8;
2675         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2676         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2677         num_notice_funcs = newnum;
2678     }
2679     if (notice_funcs[numeric])
2680         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2681     notice_funcs[numeric] = handler;
2682 }
2683
2684 void
2685 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2686 {
2687     unsigned int x;
2688
2689     if (!user || handler)
2690           return; /* this really only works with users */
2691
2692     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2693
2694     for (x = user->num_local+1; x < num_notice_funcs; x++)
2695        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2696
2697     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2698     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2699     num_notice_funcs--;
2700 }
2701
2702 void
2703 reg_oper_func(oper_func_t handler)
2704 {
2705     if (of_used == of_size) {
2706         if (of_size) {
2707             of_size <<= 1;
2708             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2709         } else {
2710             of_size = 8;
2711             of_list = malloc(of_size*sizeof(oper_func_t));
2712         }
2713     }
2714     of_list[of_used++] = handler;
2715 }
2716
2717 static void
2718 call_oper_funcs(struct userNode *user)
2719 {
2720     unsigned int n;
2721     if (IsLocal(user))
2722         return;
2723     for (n=0; n<of_used; n++)
2724         of_list[n](user);
2725 }
2726
2727 static void
2728 send_burst(void)
2729 {
2730     unsigned int i, hop, max_hop=1;
2731     dict_iterator_t it;
2732
2733     /* burst (juped) servers, closest first (except self, which is sent already) */
2734     for (i=0; i<ArrayLength(servers_num); i++)
2735         if (servers_num[i] && servers_num[i]->hops > max_hop)
2736             max_hop = servers_num[i]->hops;
2737     for (hop=1; hop<=max_hop; hop++) {
2738         for (i=0;i<ArrayLength(servers_num);i++) {
2739             if (servers_num[i]
2740                 && (servers_num[i]->hops == hop)
2741                 && (servers_num[i] != self->uplink))
2742                 irc_server(servers_num[i]);
2743         }
2744     }
2745
2746     /* burst local nicks */
2747     for (i=0; i<=self->num_mask; i++)
2748         if (self->users[i])
2749             irc_user(self->users[i]);
2750
2751     /* build dict of unbursted channel names (just copy existing channels) */
2752     unbursted_channels = dict_new();
2753     for (it = dict_first(channels); it; it = iter_next(it))
2754         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2755 }