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 x3.
   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 "chanserv.h"
  22 #include "proto-common.c"
  23
  24 /* Full commands. */
  25 #define CMD_ACCOUNT             "ACCOUNT"
  26 #define CMD_ADMIN               "ADMIN"
  27 #define CMD_ASLL                "ASLL"
  28 #define CMD_AWAY                "AWAY"
  29 #define CMD_BURST               "BURST"
  30 #define CMD_CLEARMODE           "CLEARMODE"
  31 #define CMD_CLOSE               "CLOSE"
  32 #define CMD_CNOTICE             "CNOTICE"
  33 #define CMD_CONNECT             "CONNECT"
  34 #define CMD_CPRIVMSG            "CPRIVMSG"
  35 #define CMD_CREATE              "CREATE"
  36 #define CMD_DESTRUCT            "DESTRUCT"
  37 #define CMD_DESYNCH             "DESYNCH"
  38 #define CMD_DIE                 "DIE"
  39 #define CMD_DNS                 "DNS"
  40 #define CMD_EOB                 "END_OF_BURST"
  41 #define CMD_EOB_ACK             "EOB_ACK"
  42 #define CMD_ERROR               "ERROR"
  43 #define CMD_FAKEHOST            "FAKE"
  44 #define CMD_GET                 "GET"
  45 #define CMD_GLINE               "GLINE"
  46 #define CMD_HASH                "HASH"
  47 #define CMD_HELP                "HELP"
  48 #define CMD_INFO                "INFO"
  49 #define CMD_INVITE              "INVITE"
  50 #define CMD_ISON                "ISON"
  51 #define CMD_JOIN                "JOIN"
  52 #define CMD_JUPE                "JUPE"
  53 #define CMD_KICK                "KICK"
  54 #define CMD_KILL                "KILL"
  55 #define CMD_LINKS               "LINKS"
  56 #define CMD_LIST                "LIST"
  57 #define CMD_LUSERS              "LUSERS"
  58 #define CMD_MAP                 "MAP"
  59 #define CMD_MARK                "MARK"
  60 #define CMD_MODE                "MODE"
  61 #define CMD_MOTD                "MOTD"
  62 #define CMD_NAMES               "NAMES"
  63 #define CMD_NICK                "NICK"
  64 #define CMD_NOTICE              "NOTICE"
  65 #define CMD_OPER                "OPER"
  66 #define CMD_OPMODE              "OPMODE"
  67 #define CMD_PART                "PART"
  68 #define CMD_PASS                "PASS"
  69 #define CMD_PING                "PING"
  70 #define CMD_PONG                "PONG"
  71 #define CMD_POST                "POST"
  72 #define CMD_PRIVMSG             "PRIVMSG"
  73 #define CMD_PRIVS               "PRIVS"
  74 #define CMD_PROTO               "PROTO"
  75 #define CMD_QUIT                "QUIT"
  76 #define CMD_REHASH              "REHASH"
  77 #define CMD_RESET               "RESET"
  78 #define CMD_RESTART             "RESTART"
  79 #define CMD_RPING               "RPING"
  80 #define CMD_RPONG               "RPONG"
  81 #define CMD_SERVER              "SERVER"
  82 #define CMD_SERVLIST            "SERVLIST"
  83 #define CMD_SERVSET             "SERVSET"
  84 #define CMD_SET                 "SET"
  85 #define CMD_SETTIME             "SETTIME"
  86 #define CMD_SILENCE             "SILENCE"
  87 #define CMD_SQUERY              "SQUERY"
  88 #define CMD_SQUIT               "SQUIT"
  89 #define CMD_STATS               "STATS"
  90 #define CMD_SVSNICK             "SVSNICK"
  91 #define CMD_TIME                "TIME"
  92 #define CMD_TOPIC               "TOPIC"
  93 #define CMD_TRACE               "TRACE"
  94 #define CMD_UPING               "UPING"
  95 #define CMD_USER                "USER"
  96 #define CMD_USERHOST            "USERHOST"
  97 #define CMD_USERIP              "USERIP"
  98 #define CMD_VERSION             "VERSION"
  99 #define CMD_WALLCHOPS           "WALLCHOPS"
 100 #define CMD_WALLOPS             "WALLOPS"
 101 #define CMD_WALLHOPS            "WALLHOPS"
 102 #define CMD_WALLUSERS           "WALLUSERS"
 103 #define CMD_WALLVOICES          "WALLVOICES"
 104 #define CMD_WALLHOPS            "WALLHOPS"
 105 #define CMD_WHO                 "WHO"
 106 #define CMD_WHOIS               "WHOIS"
 107 #define CMD_WHOWAS              "WHOWAS"
 108
 109 /* Tokenized commands. */
 110 #define TOK_ACCOUNT             "AC"
 111 #define TOK_ADMIN               "AD"
 112 #define TOK_ASLL                "LL"
 113 #define TOK_AWAY                "A"
 114 #define TOK_BURST               "B"
 115 #define TOK_CLEARMODE           "CM"
 116 #define TOK_CLOSE               "CLOSE"
 117 #define TOK_CNOTICE             "CN"
 118 #define TOK_CONNECT             "CO"
 119 #define TOK_CPRIVMSG            "CP"
 120 #define TOK_CREATE              "C"
 121 #define TOK_DESTRUCT            "DE"
 122 #define TOK_DESYNCH             "DS"
 123 #define TOK_DIE                 "DIE"
 124 #define TOK_DNS                 "DNS"
 125 #define TOK_EOB                 "EB"
 126 #define TOK_EOB_ACK             "EA"
 127 #define TOK_ERROR               "Y"
 128 #define TOK_FAKEHOST            "FA"
 129 #define TOK_GET                 "GET"
 130 #define TOK_GLINE               "GL"
 131 #define TOK_HASH                "HASH"
 132 #define TOK_HELP                "HELP"
 133 #define TOK_INFO                "F"
 134 #define TOK_INVITE              "I"
 135 #define TOK_ISON                "ISON"
 136 #define TOK_JOIN                "J"
 137 #define TOK_JUPE                "JU"
 138 #define TOK_KICK                "K"
 139 #define TOK_KILL                "D"
 140 #define TOK_LINKS               "LI"
 141 #define TOK_LIST                "LIST"
 142 #define TOK_LUSERS              "LU"
 143 #define TOK_MAP                 "MAP"
 144 #define TOK_MARK                "MK"
 145 #define TOK_MODE                "M"
 146 #define TOK_MOTD                "MO"
 147 #define TOK_NAMES               "E"
 148 #define TOK_NICK                "N"
 149 #define TOK_NOTICE              "O"
 150 #define TOK_OPER                "OPER"
 151 #define TOK_OPMODE              "OM"
 152 #define TOK_PART                "L"
 153 #define TOK_PASS                "PA"
 154 #define TOK_PING                "G"
 155 #define TOK_PONG                "Z"
 156 #define TOK_POST                "POST"
 157 #define TOK_PRIVMSG             "P"
 158 #define TOK_PRIVS               "PRIVS"
 159 #define TOK_PROTO               "PROTO"
 160 #define TOK_QUIT                "Q"
 161 #define TOK_REHASH              "REHASH"
 162 #define TOK_RESET               "RESET"
 163 #define TOK_RESTART             "RESTART"
 164 #define TOK_RPING               "RI"
 165 #define TOK_RPONG               "RO"
 166 #define TOK_SERVER              "S"
 167 #define TOK_SERVLIST            "SERVSET"
 168 #define TOK_SERVSET             "SERVSET"
 169 #define TOK_SET                 "SET"
 170 #define TOK_SETTIME             "SE"
 171 #define TOK_SILENCE             "U"
 172 #define TOK_SQUERY              "SQUERY"
 173 #define TOK_SQUIT               "SQ"
 174 #define TOK_STATS               "R"
 175 #define TOK_SVSNICK             "SN"
 176 #define TOK_TIME                "TI"
 177 #define TOK_TOPIC               "T"
 178 #define TOK_TRACE               "TR"
 179 #define TOK_UPING               "UP"
 180 #define TOK_USER                "USER"
 181 #define TOK_USERHOST            "USERHOST"
 182 #define TOK_USERIP              "USERIP"
 183 #define TOK_VERSION             "V"
 184 #define TOK_WALLCHOPS           "WC"
 185 #define TOK_WALLOPS             "WA"
 186 #define TOK_WALLHOPS            "WH"
 187 #define TOK_WALLUSERS           "WU"
 188 #define TOK_WALLVOICES          "WV"
 189 #define TOK_WALLHOPS            "WH"
 190 #define TOK_WHO                 "H"
 191 #define TOK_WHOIS               "W"
 192 #define TOK_WHOWAS              "X"
 193
 194 /* Protocol messages; aliased to full commands or tokens depending
 195    on compile-time configuration. ircu prefers tokens WITH THE
 196    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 197    tokenized, because clients' (ie. a linking server) commands are
 198    only checked against the full command list.
 199 */
 200 #if defined(ENABLE_TOKENS)
 201 #define TYPE(NAME)              TOK_ ## NAME
 202 #else /* !ENABLE_TOKENS */
 203 #define TYPE(NAME)              CMD_ ## NAME
 204 #endif /* ENABLE_TOKENS */
 205
 206 #define P10_ACCOUNT             TYPE(ACCOUNT)
 207 #define P10_ADMIN               TYPE(ADMIN)
 208 #define P10_ASLL                TYPE(ASLL)
 209 #define P10_AWAY                TYPE(AWAY)
 210 #define P10_BURST               TYPE(BURST)
 211 #define P10_CLEARMODE           TYPE(CLEARMODE)
 212 #define P10_CLOSE               TYPE(CLOSE)
 213 #define P10_CNOTICE             TYPE(CNOTICE)
 214 #define P10_CONNECT             TYPE(CONNECT)
 215 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 216 #define P10_CREATE              TYPE(CREATE)
 217 #define P10_DESTRUCT            TYPE(DESTRUCT)
 218 #define P10_DESYNCH             TYPE(DESYNCH)
 219 #define P10_DIE                 TYPE(DIE)
 220 #define P10_DNS                 TYPE(DNS)
 221 #define P10_EOB                 TYPE(EOB)
 222 #define P10_EOB_ACK             TYPE(EOB_ACK)
 223 #define P10_ERROR               TYPE(ERROR)
 224 #define P10_FAKEHOST            TYPE(FAKEHOST)
 225 #define P10_GET                 TYPE(GET)
 226 #define P10_GLINE               TYPE(GLINE)
 227 #define P10_HASH                TYPE(HASH)
 228 #define P10_HELP                TYPE(HELP)
 229 #define P10_INFO                TYPE(INFO)
 230 #define P10_INVITE              TYPE(INVITE)
 231 #define P10_ISON                TYPE(ISON)
 232 #define P10_JOIN                TYPE(JOIN)
 233 #define P10_JUPE                TYPE(JUPE)
 234 #define P10_KICK                TYPE(KICK)
 235 #define P10_KILL                TYPE(KILL)
 236 #define P10_LINKS               TYPE(LINKS)
 237 #define P10_LIST                TYPE(LIST)
 238 #define P10_LUSERS              TYPE(LUSERS)
 239 #define P10_MAP                 TYPE(MAP)
 240 #define P10_MARK                TYPE(MARK)
 241 #define P10_MODE                TYPE(MODE)
 242 #define P10_MOTD                TYPE(MOTD)
 243 #define P10_NAMES               TYPE(NAMES)
 244 #define P10_NICK                TYPE(NICK)
 245 #define P10_NOTICE              TYPE(NOTICE)
 246 #define P10_OPER                TYPE(OPER)
 247 #define P10_OPMODE              TYPE(OPMODE)
 248 #define P10_PART                TYPE(PART)
 249 #define P10_PASS                CMD_PASS
 250 #define P10_PING                TYPE(PING)
 251 #define P10_PONG                TYPE(PONG)
 252 #define P10_POST                TYPE(POST)
 253 #define P10_PRIVMSG             TYPE(PRIVMSG)
 254 #define P10_PRIVS               TYPE(PRIVS)
 255 #define P10_PROTO               TYPE(PROTO)
 256 #define P10_QUIT                TYPE(QUIT)
 257 #define P10_REHASH              TYPE(REHASH)
 258 #define P10_RESET               TYPE(RESET)
 259 #define P10_RESTART             TYPE(RESTART)
 260 #define P10_RPING               TYPE(RPING)
 261 #define P10_RPONG               TYPE(RPONG)
 262 #define P10_SERVER              CMD_SERVER
 263 #define P10_SERVLIST            TYPE(SERVLIST)
 264 #define P10_SERVSET             TYPE(SERVSET)
 265 #define P10_SET                 TYPE(SET)
 266 #define P10_SETTIME             TYPE(SETTIME)
 267 #define P10_SILENCE             TYPE(SILENCE)
 268 #define P10_SQUERY              TYPE(SQUERY)
 269 #define P10_SQUIT               TYPE(SQUIT)
 270 #define P10_STATS               TYPE(STATS)
 271 #define P10_SVSNICK             TYPE(SVSNICK)
 272 #define P10_TIME                TYPE(TIME)
 273 #define P10_TOPIC               TYPE(TOPIC)
 274 #define P10_TRACE               TYPE(TRACE)
 275 #define P10_UPING               TYPE(UPING)
 276 #define P10_USER                TYPE(USER)
 277 #define P10_USERHOST            TYPE(USERHOST)
 278 #define P10_USERIP              TYPE(USERIP)
 279 #define P10_VERSION             TYPE(VERSION)
 280 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 281 #define P10_WALLOPS             TYPE(WALLOPS)
 282 #define P10_WALLHOPS            TYPE(WALLHOPS)
 283 #define P10_WALLUSERS           TYPE(WALLUSERS)
 284 #define P10_WALLVOICES          TYPE(WALLVOICES)
 285 #define P10_WHO                 TYPE(WHO)
 286 #define P10_WHOIS               TYPE(WHOIS)
 287 #define P10_WHOWAS              TYPE(WHOWAS)
 288
 289 /* Servers claiming to have a boot or link time before PREHISTORY
 290  * trigger errors to the log.  We hope no server has been running
 291  * constantly since September 1994.  :)
 292  */
 293 #define PREHISTORY 780000000
 294
 295 static struct server *servers_num[64*64];
 296 static privmsg_func_t *privmsg_funcs;
 297 static unsigned int num_privmsg_funcs;
 298 static privmsg_func_t *notice_funcs;
 299 static unsigned int num_notice_funcs;
 300 static struct dict *unbursted_channels;
 301 static char *his_servername;
 302 static char *his_servercomment;
 303
 304 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);
 305
 306 extern int off_channel;
 307
 308 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 309  * server and Y's indentifying the client on that server. */
 310 struct server*
 311 GetServerN(const char *numeric)
 312 {
 313     switch (strlen(numeric)) {
 314     default:
 315         return servers_num[base64toint(numeric, 2)];
 316     case 4:
 317     case 3:
 318     case 1:
 319         return servers_num[base64toint(numeric, 1)];
 320     case 0:
 321         return NULL;
 322     }
 323 }
 324
 325 struct userNode*
 326 GetUserN(const char *numeric) /* using numeric */
 327 {
 328     struct userNode *un;
 329     struct server *s;
 330     int n, slen, ulen;
 331
 332     switch (strlen(numeric)) {
 333     default:
 334         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 335         return NULL;
 336     case 5: slen = 2; ulen = 3; break;
 337     case 4: slen = 1; ulen = 3; break;
 338     case 3: slen = 1; ulen = 2; break;
 339     case 2: case 1: case 0:
 340         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 341         return NULL;
 342     }
 343     if (!(s = servers_num[base64toint(numeric, slen)])) {
 344         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 345         return NULL;
 346     }
 347     n = base64toint(numeric+slen, ulen) & s->num_mask;
 348     if (!(un = s->users[n])) {
 349         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 350     }
 351     return un;
 352 }
 353
 354 static void
 355 privmsg_user_helper(struct userNode *un, void *data)
 356 {
 357     struct privmsg_desc *pd = data;
 358     unsigned int num = un->num_local;
 359     if (!pd->is_notice) {
 360         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 361             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 362         }
 363     } else {
 364         if ((num < num_notice_funcs) && notice_funcs[num]) {
 365             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 366         }
 367     }
 368 }
 369
 370 void
 371 irc_server(struct server *srv)
 372 {
 373     char extranum[COMBO_NUMERIC_LEN+1];
 374
 375     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 376     if (srv == self) {
 377         /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
 378         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
 379                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 380     } else {
 381         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
 382                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 383     }
 384 }
 385
 386 void
 387 irc_user(struct userNode *user)
 388 {
 389     char b64ip[7];
 390     if (!user)
 391         return;
 392     inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
 393     if (user->modes) {
 394         int modelen;
 395         char modes[32];
 396
 397         modelen = 0;
 398         if (IsOper(user))
 399             modes[modelen++] = 'o';
 400         if (IsInvisible(user))
 401             modes[modelen++] = 'i';
 402         if (IsWallOp(user))
 403             modes[modelen++] = 'w';
 404         if (IsService(user))
 405             modes[modelen++] = 'k';
 406         if (IsServNotice(user))
 407             modes[modelen++] = 's';
 408         if (IsDeaf(user))
 409             modes[modelen++] = 'd';
 410         if (IsGlobal(user))
 411             modes[modelen++] = 'g';
 412         // sethost - reed/apples
 413         // if (IsHelperIrcu(user))
 414         if (IsSetHost(user))
 415             modes[modelen++] = 'h';
 416         if (IsFakeHost(user))
 417             modes[modelen++] = 'f';
 418         if (IsHiddenHost(user))
 419             modes[modelen++] = 'x';
 420         modes[modelen] = 0;
 421
 422         /* we don't need to put the + in modes because it's in the format string. */
 423         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 424                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 425     } else {
 426         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 427                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 428     }
 429 }
 430
 431 void
 432 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 433 {
 434     putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 435 }
 436
 437 void
 438 irc_fakehost(struct userNode *user, const char *host)
 439 {
 440     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 441 }
 442
 443 void
 444 irc_regnick(UNUSED_ARG(struct userNode *user))
 445 {
 446     /* no operation here */
 447 }
 448
 449 void
 450 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 451 {
 452     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 453 }
 454
 455 void
 456 irc_fetchtopic(struct userNode *from, const char *to)
 457 {
 458     if (!from || !to)
 459         return;
 460     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 461 }
 462
 463 void
 464 irc_squit(struct server *srv, const char *message, const char *service_message)
 465 {
 466     if (!service_message)
 467         service_message = message;
 468
 469     /* Are we leaving the network? */
 470     if (srv == self && cManager.uplink->state == CONNECTED) {
 471         unsigned int i;
 472
 473         /* Quit all clients linked to me. */
 474         for (i = 0; i <= self->num_mask; i++) {
 475             if (!self->users[i])
 476                 continue;
 477             irc_quit(self->users[i], service_message);
 478         }
 479     }
 480
 481     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 482
 483     if (srv == self) {
 484         /* Force a reconnect to the currently selected server. */
 485         cManager.uplink->tries = 0;
 486         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 487         close_socket();
 488     }
 489 }
 490
 491 void
 492 irc_wallchops(struct userNode *from, const char *to, const char *message)
 493 {
 494     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 495 }
 496
 497 void
 498 irc_notice(struct userNode *from, const char *to, const char *message)
 499 {
 500     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 501 }
 502
 503 void
 504 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 505 {
 506     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 507 }
 508
 509 void
 510 irc_privmsg(struct userNode *from, const char *to, const char *message)
 511 {
 512     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 513 }
 514
 515 void
 516 irc_eob(void)
 517 {
 518     putsock("%s " P10_EOB, self->numeric);
 519 }
 520
 521 void
 522 irc_eob_ack(void)
 523 {
 524     putsock("%s " P10_EOB_ACK, self->numeric);
 525 }
 526
 527 void
 528 irc_ping(const char *payload)
 529 {
 530     putsock("%s " P10_PING " :%s", self->numeric, payload);
 531 }
 532
 533 void
 534 irc_pong(const char *who, const char *data)
 535 {
 536     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 537 }
 538
 539 void
 540 irc_pass(const char *passwd)
 541 {
 542     putsock(P10_PASS " :%s", passwd);
 543 }
 544
 545 void
 546 irc_introduce(const char *passwd)
 547 {
 548     void timed_send_ping(void *data);
 549
 550     self->self_burst = self->burst = 1;
 551     irc_pass(passwd);
 552     irc_server(self);
 553     burst_length = 0;
 554     timeq_add(now + ping_freq, timed_send_ping, 0);
 555 }
 556
 557 void
 558 irc_gline(struct server *srv, struct gline *gline)
 559 {
 560     putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
 561             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
 562 }
 563
 564 void
 565 irc_settime(const char *srv_name_mask, time_t new_time)
 566 {
 567     ioset_set_time(new_time);
 568     if (!strcmp(srv_name_mask, "*"))
 569         srv_name_mask = "";
 570     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 571 }
 572
 573 void
 574 irc_ungline(const char *mask)
 575 {
 576     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 577 }
 578
 579 static void
 580 irc_burst(struct chanNode *chan)
 581 {
 582     char burst_line[512];
 583     int pos, base_len, len;
 584     struct modeNode *mn;
 585     struct banNode *bn;
 586     struct exemptNode *en;
 587     long last_mode=-1;
 588     unsigned int n;
 589
 590     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 591                        self->numeric, chan->name, chan->timestamp);
 592     len = irc_make_chanmode(chan, burst_line+base_len);
 593     pos = base_len + len;
 594     if (len)
 595         burst_line[pos++] = ' ';
 596
 597     /* dump the users */
 598     for (n=0; n<chan->members.used; n++) {
 599         mn = chan->members.list[n];
 600         if (pos > 500) {
 601             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 602             putsock("%s", burst_line);
 603             pos = base_len;
 604             last_mode = -1;
 605         }
 606         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 607         pos += strlen(mn->user->numeric);
 608         if (mn->modes && (mn->modes != last_mode)) {
 609             last_mode = mn->modes;
 610             burst_line[pos++] = ':';
 611             if (last_mode & MODE_CHANOP)
 612                 burst_line[pos++] = 'o';
 613             if (last_mode & MODE_HALFOP)
 614                 burst_line[pos++] = 'h';
 615             if (last_mode & MODE_VOICE)
 616                 burst_line[pos++] = 'v';
 617         }
 618         if ((n+1)<chan->members.used)
 619             burst_line[pos++] = ',';
 620     }
 621     if (chan->banlist.used) {
 622         /* dump the bans */
 623         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 624             burst_line[pos-1] = 0;
 625             putsock("%s", burst_line);
 626             pos = base_len;
 627         } else {
 628             burst_line[pos++] = ' ';
 629         }
 630
 631         burst_line[pos++] = ':';
 632         burst_line[pos++] = '%';
 633         base_len = pos;
 634         for (n=0; n<chan->banlist.used; n++) {
 635             bn = chan->banlist.list[n];
 636             len = strlen(bn->ban);
 637             if (pos+len+1 > 510) {
 638                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 639                 putsock("%s", burst_line);
 640                 pos = base_len;
 641             }
 642             memcpy(burst_line+pos, bn->ban, len);
 643             pos += len;
 644             burst_line[pos++] = ' ';
 645         }
 646     }
 647     if (chan->exemptlist.used) {
 648         /* dump the exempt */
 649         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 650             burst_line[pos-1] = 0;
 651             putsock("%s", burst_line);
 652             pos = base_len;
 653         } else {
 654             burst_line[pos++] = ' ';
 655         }
 656
 657         burst_line[pos++] = ' ';
 658         burst_line[pos++] = '~';
 659         burst_line[pos++] = ' ';
 660         base_len = pos;
 661         for (n=0; n<chan->exemptlist.used; n++) {
 662             en = chan->exemptlist.list[n];
 663             len = strlen(en->exempt);
 664             if (pos+len+1 > 510) {
 665                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 666                 putsock("%s", burst_line);
 667                 pos = base_len;
 668             }
 669             memcpy(burst_line+pos, en->exempt, len);
 670             pos += len;
 671             burst_line[pos++] = ' ';
 672         }
 673     }
 674     /* print the last line */
 675     burst_line[pos] = 0;
 676     putsock("%s", burst_line);
 677 }
 678
 679 void
 680 irc_quit(struct userNode *user, const char *message)
 681 {
 682     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 683 }
 684
 685 void
 686 irc_error(const char *to, const char *message)
 687 {
 688     if (to) {
 689         putsock("%s " P10_ERROR " :%s", to, message);
 690     } else {
 691         putsock(":%s " P10_ERROR " :%s", self->name, message);
 692     }
 693 }
 694
 695 void
 696 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 697 {
 698     if (from) {
 699         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 700                 from->numeric, target->numeric, self->name, from->nick, message);
 701     } else {
 702         putsock("%s " P10_KILL " %s :%s (%s)",
 703                 self->numeric, target->numeric, self->name, message);
 704     }
 705 }
 706
 707 void
 708 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 709 {
 710     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 711             (from ? from->numeric : self->numeric),
 712             target->name, modes, target->timestamp);
 713 }
 714
 715 void
 716 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 717 {
 718     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 719 }
 720
 721 void
 722 irc_join(struct userNode *who, struct chanNode *what)
 723 {
 724     if (what->members.used == 1) {
 725         putsock("%s " P10_CREATE " %s %lu",
 726                 who->numeric, what->name, what->timestamp);
 727     } else {
 728         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
 729     }
 730 }
 731
 732 void
 733 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
 734 {
 735     const char *numeric;
 736     struct modeNode *mn = GetUserMode(channel, who);
 737     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
 738     putsock("%s " P10_KICK " %s %s :%s",
 739             numeric, channel->name, target->numeric, msg);
 740 }
 741
 742 void
 743 irc_stats(struct userNode *from, struct server *target, char type)
 744 {
 745     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
 746 }
 747
 748 void
 749 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
 750 {
 751     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
 752 }
 753
 754 void
 755 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
 756 {
 757     if (reason) {
 758         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
 759     } else {
 760         putsock("%s " P10_PART " %s", who->numeric, what->name);
 761     }
 762 }
 763
 764 void
 765 irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
 766 {
 767     putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
 768 }
 769
 770 void
 771 irc_raw(const char *what)
 772 {
 773     putsock("%s", what);
 774 }
 775
 776 void
 777 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
 778 {
 779     va_list arg_list;
 780     char buffer[MAXLEN];
 781     va_start(arg_list, format);
 782     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 783     buffer[MAXLEN-1] = 0;
 784     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
 785 }
 786
 787 static void send_burst(void);
 788
 789 static void
 790 change_nicklen(int new_nicklen)
 791 {
 792     unsigned int nn;
 793     char new_nick[NICKLEN+1];
 794     struct userNode *user;
 795
 796     nicklen = new_nicklen;
 797     /* fix up any users we have here */
 798     for (nn=0; nn<=self->num_mask; nn++) {
 799         if (!(user = self->users[nn]))
 800             continue;
 801         safestrncpy(new_nick, user->nick, sizeof(new_nick));
 802         new_nick[nicklen] = 0;
 803         NickChange(user, new_nick, 1);
 804     }
 805 }
 806
 807 static CMD_FUNC(cmd_whois)
 808 {
 809     struct userNode *from;
 810     struct userNode *who;
 811
 812     if (argc < 3)
 813         return 0;
 814     if (!(from = GetUserH(origin))) {
 815         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
 816         return 0;
 817     }
 818     if(!(who = GetUserH(argv[2]))) {
 819         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
 820         return 1;
 821     }
 822     if (IsHiddenHost(who) && !IsOper(from)) {
 823         /* Just stay quiet. */
 824         return 1;
 825     }
 826     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
 827     if (his_servername && his_servercomment)
 828         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
 829     else
 830         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
 831     if (IsOper(who))
 832         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
 833     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
 834     return 1;
 835 }
 836
 837 static CMD_FUNC(cmd_server)
 838 {
 839     struct server *srv;
 840     const char *str;
 841
 842     if (argc < 8)
 843         return 0;
 844     if (self->uplink) {
 845         /* another server introduced us */
 846         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 847         if (!srv)
 848             return 0;
 849         srv->self_burst = argv[5][0] == 'J';
 850         srv->burst = 1;
 851     } else {
 852         /* this must be our uplink */
 853         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 854         if (!srv)
 855             return 0;
 856         srv->self_burst = argv[5][0] == 'J';
 857         srv->burst = 1;
 858         if ((argv[7][0] == '+') && !force_n2k) {
 859             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
 860         }
 861         send_burst();
 862     }
 863
 864     /* Fix up our timestamps if necessary. */
 865     if (srv->boot <= PREHISTORY) {
 866         /* Server from the mists of time.. */
 867         if (srv->hops == 1) {
 868             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
 869         }
 870     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
 871                && enabled_string(str)) {
 872         /* If we have a reliable clock, we just keep our current time. */
 873     } else {
 874         if (srv->boot <= self->boot) {
 875             /* The other server is older than us.  Accept their timestamp.
 876              * Alternately, we are same age, but we accept their time
 877              * since we are linking to them. */
 878             self->boot = srv->boot;
 879             ioset_set_time(srv->link);
 880         }
 881     }
 882     if (srv == self->uplink) {
 883         extern time_t burst_begin;
 884         burst_begin = now;
 885     }
 886     return 1;
 887 }
 888
 889 static CMD_FUNC(cmd_eob)
 890 {
 891     struct server *sender;
 892     dict_iterator_t it;
 893     unsigned int ii;
 894
 895     if (!(sender = GetServerH(origin)))
 896         return 0;
 897     if (sender == self->uplink) {
 898         cManager.uplink->state = CONNECTED;
 899         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
 900             irc_burst(iter_data(it));
 901         dict_delete(unbursted_channels);
 902         unbursted_channels = NULL;
 903         irc_eob();
 904         irc_eob_ack();
 905     }
 906     sender->self_burst = 0;
 907     recalc_bursts(sender);
 908     for (ii=0; ii<slf_used; ii++)
 909         slf_list[ii](sender);
 910     return 1;
 911 }
 912
 913 static CMD_FUNC(cmd_eob_ack)
 914 {
 915     extern time_t burst_begin;
 916
 917     if (GetServerH(origin) == self->uplink) {
 918         burst_length = now - burst_begin;
 919         self->self_burst = self->burst = 0;
 920     }
 921     cManager.uplink->state = CONNECTED;
 922     return 1;
 923 }
 924
 925 static CMD_FUNC(cmd_ping)
 926 {
 927     struct server *srv;
 928     struct userNode *un;
 929
 930     if(argc > 3)
 931         irc_pong(argv[2], argv[1]);
 932     else if ((srv = GetServerH(origin)))
 933         irc_pong(self->name, srv->numeric);
 934     else if ((un = GetUserH(origin)))
 935         irc_pong(self->name, un->numeric);
 936     else
 937         irc_pong(self->name, origin);
 938
 939     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 940     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 941     timeq_add(now + ping_freq, timed_send_ping, 0);
 942     received_ping();
 943     return 1;
 944 }
 945
 946 static CMD_FUNC(cmd_error_nick)
 947 {
 948     /* Go back to original IRC length .. and try to reconnect :/ */
 949     change_nicklen(9);
 950     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
 951     return 1;
 952 }
 953
 954 struct create_desc {
 955     struct userNode *user;
 956     time_t when;
 957 };
 958
 959 static void
 960 join_helper(struct chanNode *chan, void *data)
 961 {
 962     struct create_desc *cd = data;
 963     AddChannelUser(cd->user, chan);
 964 }
 965
 966 static void
 967 create_helper(char *name, void *data)
 968 {
 969     struct create_desc *cd = data;
 970
 971     if (!strcmp(name, "0")) {
 972         while (cd->user->channels.used > 0)
 973             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
 974         return;
 975     }
 976
 977     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
 978 }
 979
 980 static CMD_FUNC(cmd_create)
 981 {
 982     struct create_desc cd;
 983     struct userNode *user;
 984
 985     if ((argc < 3) || !(user = GetUserH(origin)))
 986         return 0;
 987     cd.user = user;
 988     cd.when = atoi(argv[2]);
 989     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
 990     return 1;
 991 }
 992
 993 static CMD_FUNC(cmd_join)
 994 {
 995     struct create_desc cd;
 996
 997     if (!(cd.user = GetUserH(origin)))
 998         return 0;
 999     if (argc < 2)
1000         return 0;
1001     else if (argc < 3)
1002         cd.when = now;
1003     else
1004         cd.when = atoi(argv[2]);
1005     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1006     return 1;
1007 }
1008
1009 static CMD_FUNC(cmd_pong)
1010 {
1011     if (argc < 3)
1012         return 0;
1013     if (!strcmp(argv[2], self->name)) {
1014         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1015         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1016         timeq_add(now + ping_freq, timed_send_ping, 0);
1017         received_ping();
1018     }
1019     return 1;
1020 }
1021
1022 static CMD_FUNC(cmd_nick)
1023 {
1024     struct userNode *user;
1025     if ((user = GetUserH(origin))) {
1026         /* nick change (since the source is a user numeric) */
1027         if (argc < 2)
1028             return 0;
1029         NickChange(user, argv[1], 1);
1030     } else {
1031         struct server *serv;
1032         char modes[MAXLEN];
1033         /* new nick */
1034         if (argc < 9)
1035             return 0;
1036         serv = GetServerH(origin);
1037         if (argc > 9)
1038             unsplit_string(argv+6, argc-9, modes);
1039         else
1040             strcpy(modes, "+");
1041         AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1042     }
1043     return 1;
1044 }
1045
1046 static CMD_FUNC(cmd_account)
1047 {
1048     struct userNode *user;
1049     struct server *server;
1050     struct handle_info *hi;
1051
1052     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1053         return 0; /* Origin must be server. */
1054
1055     /* This next line appears to tremple origin.. why? */
1056     user = GetUserN(argv[1]);
1057     if (!user)
1058         return 1; /* A QUIT probably passed the ACCOUNT. */
1059
1060     if(!strcmp(argv[2],"C"))
1061     {
1062         if((hi = loc_auth(argv[4], argv[5])))
1063         {
1064             /* Return a AC A */
1065             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1066
1067         }
1068         else
1069         {
1070             /* Return a AC D */
1071             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1072         }
1073         return 1;
1074     }
1075     else if(!strcmp(argv[2],"R"))
1076        call_account_func(user, argv[3]);
1077     else
1078         call_account_func(user, argv[2]); /* For backward compatability */
1079     return 1;
1080 }
1081
1082 static CMD_FUNC(cmd_fakehost)
1083 {
1084     struct userNode *user;
1085
1086     if ((argc < 3) || !origin || !GetServerH(origin))
1087         return 0;
1088     if (!(user = GetUserN(argv[1])))
1089         return 1;
1090     assign_fakehost(user, argv[2], 0);
1091     return 1;
1092 }
1093
1094 static CMD_FUNC(cmd_burst)
1095 {
1096     extern int rel_age;
1097     char modes[MAXLEN], *members = "";
1098     static char exemptlist[MAXLEN], banlist[MAXLEN];
1099     unsigned int next = 3, res = 1;
1100     int ctype = 0, echeck = 0, bcheck = 0;
1101     struct chanNode *cNode;
1102     struct userNode *un;
1103     struct modeNode *mNode;
1104     long mode;
1105     char *user, *end, sep;
1106     time_t in_timestamp;
1107     char* parm = NULL;
1108
1109     if (argc < 3)
1110         return 0;
1111     modes[0] = 0;
1112
1113     exemptlist[0] = 0;
1114     banlist[0] = 0;
1115
1116     while (next < argc) {
1117         switch (argv[next][0]) {
1118         case '+': {
1119             const char *pos;
1120             int n_modes;
1121             for (pos=argv[next], n_modes = 1; *pos; pos++)
1122                 if ((*pos == 'k') || (*pos == 'l'))
1123                     n_modes++;
1124             unsplit_string(argv+next, n_modes, modes);
1125             next += n_modes;
1126             break;
1127         }
1128         case '%': {
1129             for(parm = mysep(&argv[next], " "); /* parm = first param */
1130                   parm;   /* While param is not null */
1131                   parm = mysep(&argv[next], " ")  /* parm = next param */
1132                )
1133             {
1134               switch (parm[0]) {
1135                 case '%': {
1136                   ctype = 1;
1137                   break;
1138                 }
1139                 case '~': {
1140                   ctype = 2;
1141                   break;
1142                 }
1143                 default: {
1144                   break;
1145                 }
1146               }
1147               if (ctype == 1) {
1148                 if (bcheck == 0) {
1149                   /* strip % char off start of very first ban */
1150                   if (strlen(parm) > 1) {
1151                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1152                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1153                   }
1154                   bcheck = 1;
1155                 } else {
1156                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1157                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1158                 }
1159               } else if (ctype == 2) {
1160                 if (echeck == 0) {
1161                    echeck = 1;
1162                 } else {
1163                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1164                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1165                 }
1166               }
1167             }
1168             next++;
1169             break;
1170         }
1171         default: members = argv[next++]; break;
1172       }
1173     }
1174
1175     in_timestamp = atoi(argv[2]);
1176     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1177         cNode->timestamp = in_timestamp;
1178         dict_remove(unbursted_channels, cNode->name);
1179         irc_burst(cNode);
1180     }
1181     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1182
1183     /* Burst channel members in now. */
1184     for (user = members, sep = *members, mode = 0; sep; user = end) {
1185         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1186         sep = *end++; end[-1] = 0;
1187         if (sep == ':') {
1188             mode = 0;
1189             while ((sep = *end++)) {
1190                 if (sep == 'o')
1191                     mode |= MODE_CHANOP;
1192                 else if (sep == 'h')
1193                     mode |= MODE_HALFOP;
1194                 else if (sep == 'v')
1195                     mode |= MODE_VOICE;
1196                 else if (isdigit(sep)) {
1197                     mode |= MODE_CHANOP;
1198                     while (isdigit(*end)) end++;
1199                 } else
1200                     break;
1201             }
1202             if (rel_age < 0)
1203                 mode = 0;
1204         }
1205         if (!(un = GetUserN(user))) {
1206             res = 0;
1207             continue;
1208         }
1209         if ((mNode = AddChannelUser(un, cNode)))
1210             mNode->modes = mode;
1211     }
1212
1213     return res;
1214 }
1215
1216 static CMD_FUNC(cmd_mode)
1217 {
1218     struct chanNode *cn;
1219     struct userNode *un;
1220     char *sethost; // sethost - reed/apples
1221     int i; // sethost - reed/apples
1222
1223     if (argc < 3)
1224         return 0;
1225     if (!IsChannelName(argv[1])) {
1226         un = GetUserH(argv[1]);
1227         if (!un) {
1228             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1229             return 0;
1230         }
1231         // sethost - reed/apples
1232         if (argc == 3)
1233         mod_usermode(un, argv[2]);
1234         else {
1235           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1236           i = 0;
1237           while((sethost[i++] = *argv[2]++));
1238           i--;
1239          sethost[i++] = ' ';
1240           while((sethost[i++] = *argv[3]++));
1241           mod_usermode(un, sethost); // sethost - reed/apples
1242         }
1243
1244         return 1;
1245     }
1246
1247     if (!(cn = GetChannel(argv[1]))) {
1248         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1249         return 0;
1250     }
1251     if ((un = GetUserH(origin))) {
1252         struct modeNode *mn;
1253         /* Update idle time for person setting the mode */
1254         if ((mn = GetUserMode(cn, un)))
1255             mn->idle_since = now;
1256     } else {
1257         /* If it came from a server, reset timestamp to re-sync. */
1258         cn->timestamp = atoi(argv[argc-1]);
1259     }
1260
1261     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1262 }
1263
1264 static CMD_FUNC(cmd_opmode)
1265 {
1266     struct chanNode *cn;
1267     struct userNode *un;
1268
1269     if (argc < 3)
1270         return 0;
1271
1272     if (!(cn = GetChannel(argv[1]))) {
1273         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1274         return 0;
1275     }
1276     if (!(un = GetUserH(origin))) {
1277         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1278         return 0;
1279     }
1280     if (!IsOper(un)) {
1281         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1282         return 0;
1283     }
1284
1285     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1286 }
1287
1288 static int clear_chanmode(struct chanNode *channel, const char *modes);
1289
1290 static CMD_FUNC(cmd_clearmode)
1291 {
1292     struct chanNode *cn;
1293     struct userNode *un;
1294
1295     if (argc < 3)
1296         return 0;
1297
1298     if (!(cn = GetChannel(argv[1]))) {
1299         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1300         return 0;
1301     }
1302     if (!(un = GetUserH(origin))) {
1303         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1304         return 0;
1305     }
1306     if (!IsOper(un)) {
1307         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1308         return 0;
1309     }
1310
1311     return clear_chanmode(cn, argv[2]);
1312 }
1313
1314 static CMD_FUNC(cmd_topic)
1315 {
1316     struct chanNode *cn;
1317     time_t chan_ts, topic_ts;
1318
1319     if (argc < 3)
1320         return 0;
1321     if (!(cn = GetChannel(argv[1]))) {
1322         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1323         return 0;
1324     }
1325     if (argc >= 5) {
1326         /* Looks like an Asuka style topic burst. */
1327         chan_ts = atoi(argv[2]);
1328         topic_ts = atoi(argv[3]);
1329     } else {
1330         chan_ts = cn->timestamp;
1331         topic_ts = now;
1332     }
1333     SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1334     cn->topic_time = topic_ts;
1335     return 1;
1336 }
1337
1338 static CMD_FUNC(cmd_num_topic)
1339 {
1340     struct chanNode *cn;
1341
1342     if (!argv[0])
1343         return 0; /* huh? */
1344     if (argv[2]) {
1345         cn = GetChannel(argv[2]);
1346         if (!cn) {
1347             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1348             return 0;
1349         }
1350     } else
1351         return 0;
1352
1353     switch (atoi(argv[0])) {
1354     case 331:
1355         cn->topic_time = 0;
1356         break;  /* no topic */
1357     case 332:
1358         if (argc < 4)
1359             return 0;
1360         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1361         break;
1362     case 333:
1363         if (argc < 5)
1364             return 0;
1365         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1366         cn->topic_time = atoi(argv[4]);
1367         break;
1368     default:
1369         return 0; /* should never happen */
1370     }
1371     return 1;
1372 }
1373
1374 static CMD_FUNC(cmd_num_gline)
1375 {
1376     if (argc < 6)
1377         return 0;
1378     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1379     return 1;
1380 }
1381
1382 static CMD_FUNC(cmd_quit)
1383 {
1384     struct userNode *user;
1385     if (argc < 2)
1386         return 0;
1387     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1388      * call DelUser unless we have the user in our grasp. */
1389     if ((user = GetUserH(origin)))
1390         DelUser(user, NULL, false, argv[1]);
1391     return 1;
1392 }
1393
1394 static CMD_FUNC(cmd_kill)
1395 {
1396     struct userNode *user;
1397     if (argc < 2)
1398         return 0;
1399     user = GetUserN(argv[1]);
1400     if (!user) {
1401         /* If we get a KILL for a non-existent user, it could be a
1402          * Ghost response to a KILL we sent out earlier.  So we only
1403          * whine if the target is local.
1404          */
1405         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1406             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1407         return 0;
1408     }
1409
1410     if (IsLocal(user) && IsService(user)) {
1411         /* TODO: rate limit this so silly things don't happen. */
1412         ReintroduceUser(user);
1413         return 1;
1414     }
1415
1416     DelUser(user, NULL, false, argv[2]);
1417     return 1;
1418 }
1419
1420 static CMD_FUNC(cmd_part)
1421 {
1422     struct userNode *user;
1423
1424     if (argc < 2)
1425         return 0;
1426     user = GetUserH(origin);
1427     if (!user)
1428         return 0;
1429     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1430     return 1;
1431 }
1432
1433 static CMD_FUNC(cmd_kick)
1434 {
1435     if (argc < 3)
1436         return 0;
1437     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1438     return 1;
1439 }
1440
1441 static CMD_FUNC(cmd_squit)
1442 {
1443     struct server *server;
1444
1445     if (argc < 4)
1446         return 0;
1447     if (!(server = GetServerH(argv[1])))
1448         return 0;
1449
1450     if (server == self->uplink) {
1451         /* Force a reconnect to the currently selected server. */
1452         cManager.uplink->tries = 0;
1453         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1454         close_socket();
1455         return 1;
1456     }
1457
1458     DelServer(server, 0, argv[3]);
1459     return 1;
1460 }
1461
1462 static CMD_FUNC(cmd_privmsg)
1463 {
1464     struct privmsg_desc pd;
1465     if (argc != 3)
1466         return 0;
1467     pd.user = GetUserH(origin);
1468     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1469         return 1;
1470     pd.is_notice = 0;
1471     pd.text = argv[2];
1472     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1473     return 1;
1474 }
1475
1476 static CMD_FUNC(cmd_notice)
1477 {
1478     struct privmsg_desc pd;
1479     if (argc != 3)
1480         return 0;
1481     pd.user = GetUserH(origin);
1482     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1483         return 1;
1484     pd.is_notice = 1;
1485     pd.text = argv[2];
1486     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1487     return 1;
1488 }
1489
1490 static CMD_FUNC(cmd_away)
1491 {
1492     struct userNode *uNode;
1493
1494     uNode = GetUserH(origin);
1495     if (!uNode)
1496         return 1;
1497     if (argc < 2)
1498         uNode->modes &= ~FLAGS_AWAY;
1499     else
1500         uNode->modes |= FLAGS_AWAY;
1501     return 1;
1502 }
1503
1504 static CMD_FUNC(cmd_gline)
1505 {
1506     if (argc < 3)
1507         return 0;
1508     if (argv[2][0] == '+') {
1509         if (argc < 5)
1510             return 0;
1511         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1512         return 1;
1513     } else if (argv[2][0] == '-') {
1514         gline_remove(argv[2]+1, 0);
1515         return 1;
1516     } else
1517         return 0;
1518 }
1519
1520 static CMD_FUNC(cmd_svsnick)
1521 {
1522     struct userNode *target, *dest;
1523     if ((argc < 4)
1524         || !(target = GetUserN(argv[1]))
1525         || !IsLocal(target)
1526         || (dest = GetUserH(argv[2])))
1527         return 0;
1528     NickChange(target, argv[2], 0);
1529     return 1;
1530 }
1531
1532 static oper_func_t *of_list;
1533 static unsigned int of_size = 0, of_used = 0;
1534
1535 void
1536 free_user(struct userNode *user)
1537 {
1538     free(user->nick);
1539     free(user);
1540 }
1541
1542 static void
1543 parse_cleanup(void)
1544 {
1545     unsigned int nn;
1546     free(of_list);
1547     free(privmsg_funcs);
1548     free(notice_funcs);
1549     free(mcf_list);
1550     dict_delete(irc_func_dict);
1551     for (nn=0; nn<dead_users.used; nn++)
1552         free_user(dead_users.list[nn]);
1553     userList_clean(&dead_users);
1554 }
1555
1556 static void
1557 p10_conf_reload(void) {
1558     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1559 }
1560
1561 static void
1562 remove_unbursted_channel(struct chanNode *cNode) {
1563     if (unbursted_channels)
1564         dict_remove(unbursted_channels, cNode->name);
1565 }
1566
1567 void
1568 init_parse(void)
1569 {
1570     const char *str, *desc;
1571     int numnick, usermask, max_users;
1572     char numer[COMBO_NUMERIC_LEN+1];
1573
1574     /* read config items */
1575     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1576     ping_freq = str ? ParseInterval(str) : 120;
1577     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1578     ping_timeout = str ? ParseInterval(str) : 30;
1579     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1580     force_n2k = str ? enabled_string(str) : 1;
1581     str = conf_get_data("server/numeric", RECDB_QSTRING);
1582     if (!str) {
1583         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1584         exit(1);
1585     }
1586     numnick = atoi(str);
1587     str = conf_get_data("server/max_users", RECDB_QSTRING);
1588     max_users = str ? atoi(str) : 4096;
1589     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1590     usermask--;
1591     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1592         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1593     else
1594         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1595
1596     str = conf_get_data("server/his_servername", RECDB_QSTRING);
1597     his_servername = str ? strdup(str) : NULL;
1598     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1599     his_servercomment = str ? strdup(str) : NULL;
1600
1601     str = conf_get_data("server/hostname", RECDB_QSTRING);
1602     desc = conf_get_data("server/description", RECDB_QSTRING);
1603     if (!str || !desc) {
1604         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1605         exit(1);
1606     }
1607     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1608     conf_register_reload(p10_conf_reload);
1609
1610     irc_func_dict = dict_new();
1611     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1612     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1613     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1614     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1615     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1616     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1617     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1618     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1619     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1620     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1621     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1622     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1623     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1624     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1625     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1626     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1627     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1628     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1629     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1630     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1631     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1632     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1633     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1634     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1635     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1636     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1637     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1638     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1639     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1640     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1641     dict_insert(irc_func_dict, CMD_PART, cmd_part);
1642     dict_insert(irc_func_dict, TOK_PART, cmd_part);
1643     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1644     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1645     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1646     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1647     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1648     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1649     dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1650     dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1651     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1652     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1653     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1654     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1655     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1656     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1657     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1658     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1659     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1660     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1661     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1662     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1663     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1664     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1665     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1666     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1667     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1668     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1669     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1670     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1671     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1672     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1673     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1674     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1675
1676     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1677      * Apparently to obliterate channels from any servers that think they
1678      * exist?
1679      */
1680     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1681     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1682     /* Ignore invites */
1683     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1684     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1685     /* DESYNCH is just informational, so ignore it */
1686     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1687     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1688     /* Ignore channel operator notices. */
1689     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1690     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1691     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1692     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1693     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1694     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1695     /* Ignore opers being silly. */
1696     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1697     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1698     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1699     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1700     /* We have reliable clock!  Always!  Wraaa! */
1701     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1702     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1703     /* handle topics */
1704     dict_insert(irc_func_dict, "331", cmd_num_topic);
1705     dict_insert(irc_func_dict, "332", cmd_num_topic);
1706     dict_insert(irc_func_dict, "333", cmd_num_topic);
1707     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1708     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1709     /* ban list resetting */
1710     /* "stats g" responses */
1711     dict_insert(irc_func_dict, "247", cmd_num_gline);
1712     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1713     /* other numeric responses we might get */
1714     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1715     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1716     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1717     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
1718     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1719     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1720     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1721     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1722     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1723
1724     num_privmsg_funcs = 16;
1725     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1726     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1727
1728     num_notice_funcs = 16;
1729     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1730     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1731
1732     userList_init(&dead_users);
1733     reg_del_channel_func(remove_unbursted_channel);
1734     reg_exit_func(parse_cleanup);
1735 }
1736
1737 int
1738 parse_line(char *line, int recursive)
1739 {
1740     char *argv[MAXNUMPARAMS], *origin;
1741     int argc, cmd, res=0;
1742     cmd_func_t *func;
1743
1744     argc = split_line(line, true, MAXNUMPARAMS, argv);
1745     cmd = self->uplink || !argv[0][1] || !argv[0][2];
1746     if (argc > cmd) {
1747         if (cmd) {
1748             if (argv[0][0] == ':') {
1749                 origin = argv[0]+1;
1750             } else if (!argv[0][1] || !argv[0][2]) {
1751                 struct server *sNode = GetServerN(argv[0]);
1752                 origin = sNode ? sNode->name : 0;
1753             } else {
1754                 struct userNode *uNode = GetUserN(argv[0]);
1755                 origin = uNode ? uNode->nick : 0;
1756             }
1757         } else
1758             origin = 0;
1759         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1760             res = func(origin, argc-cmd, argv+cmd);
1761     }
1762     if (!res) {
1763         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1764     } else if (!recursive) {
1765         unsigned int i;
1766         for (i=0; i<dead_users.used; i++)
1767             free_user(dead_users.list[i]);
1768         dead_users.used = 0;
1769     }
1770     return res;
1771 }
1772
1773 static void
1774 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1775 {
1776     char *j, old;
1777     do {
1778         j = target_list;
1779         while (*j != 0 && *j != ',')
1780             j++;
1781         old = *j;
1782         *j = 0;
1783         if (IsChannelName(target_list)
1784             || (target_list[0] == '0' && target_list[1] == '\0')) {
1785             struct chanNode *chan = GetChannel(target_list);
1786             if (chan) {
1787                 if (cf)
1788                     cf(chan, data);
1789             } else {
1790                 if (nc)
1791                     nc(target_list, data);
1792             }
1793         } else {
1794             struct userNode *user;
1795             struct privmsg_desc *pd = data;
1796
1797             pd->is_qualified = 0;
1798             if (*target_list == '@') {
1799                 user = NULL;
1800             } else if (strchr(target_list, '@')) {
1801                 struct server *server;
1802
1803                 pd->is_qualified = 1;
1804                 user = GetUserH(strtok(target_list, "@"));
1805                 server = GetServerH(strtok(NULL, "@"));
1806
1807                 if (user && (user->uplink != server)) {
1808                     /* Don't attempt to index into any arrays
1809                        using a user's numeric on another server. */
1810                     user = NULL;
1811                 }
1812             } else {
1813                 user = GetUserN(target_list);
1814             }
1815
1816             if (user) {
1817                 if (uf)
1818                     uf(user, data);
1819             } else {
1820                 if (nu)
1821                     nu(target_list, data);
1822             }
1823         }
1824         target_list = j+1;
1825     } while (old == ',');
1826 }
1827
1828 static int
1829 get_local_numeric(void)
1830 {
1831     static unsigned int next_numeric = 0;
1832     if (self->clients > self->num_mask)
1833         return -1;
1834     while (self->users[next_numeric])
1835         if (++next_numeric > self->num_mask)
1836             next_numeric = 0;
1837     return next_numeric;
1838 }
1839
1840 static void
1841 make_numeric(struct server *svr, int local_num, char *outbuf)
1842 {
1843     int slen, llen;
1844
1845     if (force_n2k || svr->numeric[1]) {
1846         slen = 2;
1847         llen = 3;
1848     } else {
1849         slen = 1;
1850         llen = (local_num < 64*64) ? 2 : 3;
1851     }
1852     strncpy(outbuf, svr->numeric, slen);
1853     inttobase64(outbuf+slen, local_num, llen);
1854     outbuf[slen+llen] = 0;
1855 }
1856
1857 struct server *
1858 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1859 {
1860     struct server* sNode;
1861     int slen, mlen;
1862
1863     if ((sNode = GetServerN(numeric))) {
1864         /* This means we're trying to re-add an existant server.
1865          * To be safe, we should forget the previous incarnation.
1866          * (And all its linked servers.)
1867          *
1868          * It usually only happens in replays when the original
1869          * had a ping timeout and the replay didn't (because
1870          * replaying a ping timeout invariably gets things wrong).
1871          */
1872         DelServer(sNode, 0, NULL);
1873     }
1874
1875     switch (strlen(numeric)) {
1876     case 5: slen = 2; mlen = 3; break;
1877     case 4: slen = 1; mlen = 3; break;
1878     case 3: slen = 1; mlen = 2; break;
1879     default:
1880         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1881         return NULL;
1882     }
1883
1884     sNode = calloc(1, sizeof(*sNode));
1885     sNode->uplink = uplink;
1886     safestrncpy(sNode->name, name, sizeof(sNode->name));
1887     sNode->num_mask = base64toint(numeric+slen, mlen);
1888     sNode->hops = hops;
1889     sNode->boot = boot;
1890     sNode->link = link;
1891     strncpy(sNode->numeric, numeric, slen);
1892     safestrncpy(sNode->description, description, sizeof(sNode->description));
1893     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1894     serverList_init(&sNode->children);
1895     if (sNode->uplink) {
1896         /* uplink may be NULL if we're just building ourself */
1897         serverList_append(&sNode->uplink->children, sNode);
1898     }
1899     servers_num[base64toint(numeric, slen)] = sNode;
1900     dict_insert(servers, sNode->name, sNode);
1901     return sNode;
1902 }
1903
1904 void DelServer(struct server* serv, int announce, const char *message)
1905 {
1906     unsigned int i;
1907
1908     /* If we receive an ERROR command before the SERVER
1909      * command a NULL server can be passed */
1910     if (!serv)
1911         return;
1912
1913     /* Hrm, what's the right way to SQUIT some other server?
1914      * (This code is only to handle killing juped servers.) */
1915     if (announce && (serv->uplink == self) && (serv != self->uplink))
1916         irc_squit(serv, message, NULL);
1917
1918     /* must recursively remove servers linked to this one first */
1919     for (i=serv->children.used;i>0;)
1920         if (serv->children.list[--i] != self)
1921             DelServer(serv->children.list[i], false, NULL);
1922
1923     /* clean up server's user hash tables */
1924     for (i=0;i<=serv->num_mask;i++)
1925         if (serv->users[i])
1926             DelUser(serv->users[i], NULL, false, "server delinked");
1927
1928     /* delete server */
1929     if (serv->uplink)
1930         serverList_remove(&serv->uplink->children, serv);
1931     if (serv == self->uplink)
1932         self->uplink = NULL;
1933     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1934     dict_remove(servers, serv->name);
1935     serverList_clean(&serv->children);
1936     free(serv->users);
1937     free(serv);
1938 }
1939
1940 struct userNode *
1941 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
1942 {
1943     char numeric[COMBO_NUMERIC_LEN+1];
1944     int local_num = get_local_numeric();
1945     time_t timestamp = now;
1946     struct userNode *old_user = GetUserH(nick);
1947
1948     if (old_user) {
1949         if (IsLocal(old_user))
1950             return old_user;
1951         timestamp = old_user->timestamp - 1;
1952     }
1953     if (local_num == -1) {
1954         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1955         return 0;
1956     }
1957     if (!hostname)
1958         hostname = self->name;
1959     make_numeric(self, local_num, numeric);
1960     /* TODO: Make these modes part of the conf file */
1961     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
1962 }
1963
1964 struct userNode *
1965 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1966 {
1967     char numeric[COMBO_NUMERIC_LEN+1];
1968     int local_num = get_local_numeric();
1969     time_t timestamp = now;
1970     struct userNode *old_user = GetUserH(nick);
1971
1972     if (old_user) {
1973         if (IsLocal(old_user))
1974             return old_user;
1975         timestamp = old_user->timestamp - 1;
1976     }
1977     if (local_num == -1) {
1978         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
1979         return 0;
1980     }
1981     make_numeric(self, local_num, numeric);
1982     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
1983 }
1984
1985 int
1986 is_valid_nick(const char *nick) {
1987     unsigned int ii;
1988     /* IRC has some of The Most Fucked-Up ideas about character sets
1989      * in the world.. */
1990     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
1991         return 0;
1992     for (ii = 0; nick[ii]; ++ii)
1993         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
1994             return 0;
1995     if (strlen(nick) > nicklen)
1996         return 0;
1997     return 1;
1998 }
1999
2000 static struct userNode*
2001 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)
2002 {
2003     struct userNode *oldUser, *uNode;
2004     unsigned int n, ignore_user;
2005
2006     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2007         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2008         return NULL;
2009     }
2010
2011     if (!uplink) {
2012         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2013         return NULL;
2014     }
2015
2016     if (uplink != GetServerN(numeric)) {
2017         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2018         return NULL;
2019     }
2020
2021     if (!is_valid_nick(nick)) {
2022         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2023         return NULL;
2024     }
2025
2026     ignore_user = 0;
2027     if ((oldUser = GetUserH(nick))) {
2028         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2029             /* The service should collide the new user off. */
2030             oldUser->timestamp = timestamp - 1;
2031             irc_user(oldUser);
2032         }
2033         if (oldUser->timestamp > timestamp) {
2034             /* "Old" user is really newer; remove them */
2035             DelUser(oldUser, 0, 1, "Overruled by older nick");
2036         } else {
2037             /* User being added is too new; do not add them to
2038              * clients, but do add them to the server's list, since it
2039              * will send a KILL and QUIT soon. */
2040             ignore_user = 1;
2041         }
2042     }
2043
2044     /* create new usernode and set all values */
2045     uNode = calloc(1, sizeof(*uNode));
2046     uNode->nick = strdup(nick);
2047     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2048     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2049     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2050     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2051     uNode->ip.s_addr = htonl(base64toint(realip, 6));
2052     uNode->timestamp = timestamp;
2053     modeList_init(&uNode->channels);
2054     uNode->uplink = uplink;
2055     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2056         uNode->uplink->max_clients = uNode->uplink->clients;
2057     }
2058     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2059     uNode->uplink->users[uNode->num_local] = uNode;
2060     mod_usermode(uNode, modes);
2061     if (ignore_user)
2062         return uNode;
2063
2064     dict_insert(clients, uNode->nick, uNode);
2065     if (dict_size(clients) > max_clients) {
2066         max_clients = dict_size(clients);
2067         max_clients_time = now;
2068     }
2069     if (IsLocal(uNode))
2070         irc_user(uNode);
2071     for (n=0; n<nuf_used; n++)
2072         if (nuf_list[n](uNode))
2073             break;
2074     return uNode;
2075 }
2076
2077 /* removes user from it's server's hash table and nick hash table */
2078 void
2079 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2080 {
2081     unsigned int n;
2082
2083     verify(user);
2084
2085     /* mark them as dead, in case anybody cares */
2086     user->dead = 1;
2087
2088     /* remove pending adduser commands */
2089     wipe_adduser_pending(NULL, user);
2090
2091     /* remove user from all channels */
2092     while (user->channels.used > 0)
2093         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2094
2095     /* Call these in reverse order so ChanServ can update presence
2096        information before NickServ nukes the handle_info. */
2097     for (n = duf_used; n > 0; )
2098         duf_list[--n](user, killer, why);
2099
2100     user->uplink->clients--;
2101     user->uplink->users[user->num_local] = NULL;
2102     if (IsOper(user))
2103         userList_remove(&curr_opers, user);
2104     /* remove from global dictionary, but not if after a collide */
2105     if (user == dict_find(clients, user->nick, NULL))
2106         dict_remove(clients, user->nick);
2107
2108     if (IsInvisible(user))
2109         invis_clients--;
2110
2111     if (announce) {
2112         if (IsLocal(user))
2113             irc_quit(user, why);
2114         else
2115             irc_kill(killer, user, why);
2116     }
2117
2118     modeList_clean(&user->channels);
2119     /* We don't free them, in case we try to privmsg them or something
2120      * (like when a stupid oper kills themself).  We just put them onto
2121      * a list of clients that get freed after processing each line.
2122      */
2123     if (dead_users.size)
2124         userList_append(&dead_users, user);
2125     else
2126         free_user(user);
2127 }
2128
2129 void mod_usermode(struct userNode *user, const char *mode_change) {
2130     static void call_oper_funcs(struct userNode *user);
2131     int add = 1;
2132     const char *word = mode_change;
2133
2134     if (!user || !mode_change)
2135         return;
2136     while (*word != ' ' && *word) word++;
2137     while (*word == ' ') word++;
2138     while (1) {
2139 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2140         switch (*mode_change++) {
2141         case 0: case ' ': return;
2142         case '+': add = 1; break;
2143         case '-': add = 0; break;
2144         case 'o':
2145             do_user_mode(FLAGS_OPER);
2146             if (add) {
2147                 userList_append(&curr_opers, user);
2148                 call_oper_funcs(user);
2149             } else {
2150                 userList_remove(&curr_opers, user);
2151             }
2152             break;
2153         case 'O': do_user_mode(FLAGS_LOCOP); break;
2154         case 'i': do_user_mode(FLAGS_INVISIBLE);
2155             if (add)
2156                 invis_clients++;
2157             else
2158                 invis_clients--;
2159             break;
2160         case 'w': do_user_mode(FLAGS_WALLOP); break;
2161         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2162         case 'd': do_user_mode(FLAGS_DEAF); break;
2163         case 'k': do_user_mode(FLAGS_SERVICE); break;
2164         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2165         // sethost - reed/apples
2166         // case 'h': do_user_mode(FLAGS_HELPER); break;
2167         // I check if there's an 'h' in the first part, and if there,
2168         // then everything after the space becomes their new host.
2169         case 'h': do_user_mode(FLAGS_SETHOST);
2170             if (*word) {
2171                 char sethost[MAXLEN];
2172                 unsigned int ii;
2173                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2174                     sethost[ii++] = *word++;
2175                 sethost[ii] = 0;
2176                 while (*word == ' ')
2177                     word++;
2178                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2179             }
2180             break;
2181         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2182         case 'r':
2183             if (*word) {
2184                 char tag[MAXLEN];
2185                 unsigned int ii;
2186                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2187                     tag[ii++] = *word++;
2188                 tag[ii] = 0;
2189                 while (*word == ' ')
2190                     word++;
2191                 call_account_func(user, tag);
2192             }
2193             break;
2194         case 'f':
2195             if (*word) {
2196                 char host[MAXLEN];
2197                 unsigned int ii;
2198                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2199                     host[ii++] = *word++;
2200                 host[ii] = 0;
2201                 while (*word == ' ')
2202                     word++;
2203                 assign_fakehost(user, host, 0);
2204             }
2205             break;
2206         }
2207 #undef do_user_mode
2208     }
2209 }
2210
2211 struct mod_chanmode *
2212 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2213 {
2214     struct mod_chanmode *change;
2215     unsigned int ii, in_arg, ch_arg, add;
2216
2217     if (argc == 0)
2218         return NULL;
2219     if (!(change = mod_chanmode_alloc(argc - 1)))
2220         return NULL;
2221
2222     for (ii = ch_arg = 0, in_arg = add = 1;
2223          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2224          ++ii) {
2225         switch (modes[0][ii]) {
2226         case '+':
2227             add = 1;
2228             break;
2229         case '-':
2230             add = 0;
2231             break;
2232 #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)
2233         case 'C': do_chan_mode(MODE_NOCTCPS); break;
2234         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2235         case 'c': do_chan_mode(MODE_NOCOLORS); break;
2236         case 'i': do_chan_mode(MODE_INVITEONLY); break;
2237         case 'm': do_chan_mode(MODE_MODERATED); break;
2238         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2239         case 'p': do_chan_mode(MODE_PRIVATE); break;
2240         case 'r': do_chan_mode(MODE_REGONLY); break;
2241         case 's': do_chan_mode(MODE_SECRET); break;
2242         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2243         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2244         case 'M': do_chan_mode(MODE_MODUNREG); break;
2245         case 'N': do_chan_mode(MODE_NONOTICE); break;
2246         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2247         case 'T': do_chan_mode(MODE_NOAMSG); break;
2248         case 'O': do_chan_mode(MODE_OPERSONLY); break;
2249         case 'Z': do_chan_mode(MODE_SSLONLY); break;
2250         case 'z':
2251           if (!(flags & MCP_REGISTERED)) {
2252            do_chan_mode(MODE_REGISTERED);
2253           } else {
2254            mod_chanmode_free(change);
2255            return NULL;
2256           }
2257           break;
2258 //   uncomment this when ssl is enabled on the network.
2259 //        case 'Z': do_chan_mode(MODE_SSLONLY); break;
2260 #undef do_chan_mode
2261         case 'l':
2262             if (add) {
2263                 if (in_arg >= argc)
2264                     goto error;
2265                 change->modes_set |= MODE_LIMIT;
2266                 change->new_limit = atoi(modes[in_arg++]);
2267             } else {
2268                 change->modes_set &= ~MODE_LIMIT;
2269                 change->modes_clear |= MODE_LIMIT;
2270             }
2271             break;
2272         case 'k':
2273             if (add) {
2274                 if (in_arg >= argc)
2275                     goto error;
2276                 change->modes_set |= MODE_KEY;
2277                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2278             } else {
2279                 change->modes_clear |= MODE_KEY;
2280                 if (!(flags & MCP_KEY_FREE)) {
2281                     if (in_arg >= argc)
2282                         goto error;
2283                     in_arg++;
2284                 }
2285             }
2286             break;
2287         case 'b':
2288             if (!(flags & MCP_ALLOW_OVB))
2289                 goto error;
2290             if (in_arg >= argc)
2291                 goto error;
2292             change->args[ch_arg].mode = MODE_BAN;
2293             if (!add)
2294                 change->args[ch_arg].mode |= MODE_REMOVE;
2295             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2296             break;
2297         case 'e':
2298             if (!(flags & MCP_ALLOW_OVB))
2299                 goto error;
2300             if (in_arg >= argc)
2301                 goto error;
2302             change->args[ch_arg].mode = MODE_EXEMPT;
2303             if (!add)
2304                 change->args[ch_arg].mode |= MODE_REMOVE;
2305             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2306             break;
2307         case 'o': case 'h': case 'v':
2308         {
2309             struct userNode *victim;
2310             if (!(flags & MCP_ALLOW_OVB))
2311                 goto error;
2312             if (in_arg >= argc)
2313                 goto error;
2314
2315             if (modes[0][ii] == 'o')
2316                 change->args[ch_arg].mode = MODE_CHANOP;
2317             else if (modes[0][ii] == 'h')
2318                 change->args[ch_arg].mode = MODE_HALFOP;
2319             else if (modes[0][ii] == 'v')
2320                 change->args[ch_arg].mode = MODE_VOICE;
2321
2322             if (!add)
2323                 change->args[ch_arg].mode |= MODE_REMOVE;
2324             if (flags & MCP_FROM_SERVER)
2325                 victim = GetUserN(modes[in_arg++]);
2326             else
2327                 victim = GetUserH(modes[in_arg++]);
2328             if (!victim)
2329                 continue;
2330             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2331                 ch_arg++;
2332             break;
2333         }
2334         default:
2335             if (!(flags & MCP_FROM_SERVER))
2336                 goto error;
2337             break;
2338         }
2339     }
2340     change->argc = ch_arg; /* in case any turned out to be ignored */
2341     if (change->modes_set & MODE_SECRET) {
2342         change->modes_set &= ~(MODE_PRIVATE);
2343         change->modes_clear |= MODE_PRIVATE;
2344     } else if (change->modes_set & MODE_PRIVATE) {
2345         change->modes_set &= ~(MODE_SECRET);
2346         change->modes_clear |= MODE_SECRET;
2347     }
2348     return change;
2349   error:
2350     mod_chanmode_free(change);
2351     return NULL;
2352 }
2353
2354 struct chanmode_buffer {
2355     char modes[MAXLEN];
2356     char args[MAXLEN];
2357     struct chanNode *channel;
2358     struct userNode *actor;
2359     unsigned int modes_used;
2360     unsigned int args_used;
2361     size_t chname_len;
2362     unsigned int is_add : 1;
2363     unsigned int is_chanop : 1;
2364 };
2365
2366 static void
2367 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2368 {
2369     size_t arg_len = strlen(arg);
2370     if (buf->modes_used > (MAXMODEPARAMS) ||
2371         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2372         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2373         buf->modes[buf->modes_used + buf->args_used] = '\0';
2374         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2375         buf->modes[0] = buf->is_add ? '+' : '-';
2376         buf->modes_used = 1;
2377         buf->args_used = 0;
2378     }
2379     buf->modes[buf->modes_used++] = ch;
2380     buf->args[buf->args_used++] = ' ';
2381     memcpy(buf->args + buf->args_used, arg, arg_len);
2382     buf->args_used += arg_len;
2383 }
2384
2385 void
2386 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2387 {
2388     struct chanmode_buffer chbuf;
2389     unsigned int arg;
2390     struct modeNode *mn;
2391     char int_buff[32], mode = '\0';
2392
2393     assert(change->argc <= change->alloc_argc);
2394     memset(&chbuf, 0, sizeof(chbuf));
2395     chbuf.channel = channel;
2396     chbuf.actor = who;
2397     chbuf.chname_len = strlen(channel->name);
2398
2399     mn = GetUserMode(channel, who);
2400     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2401         chbuf.is_chanop = 1;
2402
2403     /* First remove modes */
2404     chbuf.is_add = 0;
2405     if (change->modes_clear) {
2406         if (mode != '-')
2407             chbuf.modes[chbuf.modes_used++] = mode = '-';
2408 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2409         DO_MODE_CHAR(PRIVATE, 'p');
2410         DO_MODE_CHAR(SECRET, 's');
2411         DO_MODE_CHAR(MODERATED, 'm');
2412         DO_MODE_CHAR(TOPICLIMIT, 't');
2413         DO_MODE_CHAR(INVITEONLY, 'i');
2414         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2415         DO_MODE_CHAR(LIMIT, 'l');
2416         DO_MODE_CHAR(DELAYJOINS, 'D');
2417         DO_MODE_CHAR(REGONLY, 'r');
2418         DO_MODE_CHAR(NOCOLORS, 'c');
2419         DO_MODE_CHAR(NOCTCPS, 'C');
2420         DO_MODE_CHAR(STRIPCOLOR, 'S');
2421         DO_MODE_CHAR(MODUNREG, 'M');
2422         DO_MODE_CHAR(NONOTICE, 'N');
2423         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2424         DO_MODE_CHAR(NOAMSG, 'T');
2425         DO_MODE_CHAR(OPERSONLY, 'O');
2426         DO_MODE_CHAR(REGISTERED, 'z');
2427         DO_MODE_CHAR(SSLONLY, 'Z');
2428 #undef DO_MODE_CHAR
2429         if (change->modes_clear & channel->modes & MODE_KEY)
2430             mod_chanmode_append(&chbuf, 'k', channel->key);
2431     }
2432     for (arg = 0; arg < change->argc; ++arg) {
2433         if (!(change->args[arg].mode & MODE_REMOVE))
2434             continue;
2435         if (mode != '-')
2436             chbuf.modes[chbuf.modes_used++] = mode = '-';
2437         switch (change->args[arg].mode & ~MODE_REMOVE) {
2438         case MODE_BAN:
2439             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2440             break;
2441         case MODE_EXEMPT:
2442             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2443             break;
2444         default:
2445             if (change->args[arg].mode & MODE_CHANOP)
2446                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2447             if (change->args[arg].mode & MODE_HALFOP)
2448                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2449             if (change->args[arg].mode & MODE_VOICE)
2450                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2451             break;
2452         }
2453     }
2454
2455     /* Then set them */
2456     chbuf.is_add = 1;
2457     if (change->modes_set) {
2458         if (mode != '+')
2459             chbuf.modes[chbuf.modes_used++] = mode = '+';
2460 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2461         DO_MODE_CHAR(PRIVATE, 'p');
2462         DO_MODE_CHAR(SECRET, 's');
2463         DO_MODE_CHAR(MODERATED, 'm');
2464         DO_MODE_CHAR(TOPICLIMIT, 't');
2465         DO_MODE_CHAR(INVITEONLY, 'i');
2466         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2467         DO_MODE_CHAR(DELAYJOINS, 'D');
2468         DO_MODE_CHAR(REGONLY, 'r');
2469         DO_MODE_CHAR(NOCOLORS, 'c');
2470         DO_MODE_CHAR(NOCTCPS, 'C');
2471         DO_MODE_CHAR(STRIPCOLOR, 'S');
2472         DO_MODE_CHAR(MODUNREG, 'M');
2473         DO_MODE_CHAR(NONOTICE, 'N');
2474         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2475         DO_MODE_CHAR(NOAMSG, 'T');
2476         DO_MODE_CHAR(OPERSONLY, 'O');
2477         DO_MODE_CHAR(REGISTERED, 'z');
2478         DO_MODE_CHAR(SSLONLY, 'Z');
2479 #undef DO_MODE_CHAR
2480         if(change->modes_set & MODE_KEY)
2481             mod_chanmode_append(&chbuf, 'k', change->new_key);
2482         if(change->modes_set & MODE_LIMIT) {
2483             sprintf(int_buff, "%d", change->new_limit);
2484             mod_chanmode_append(&chbuf, 'l', int_buff);
2485         }
2486     }
2487     for (arg = 0; arg < change->argc; ++arg) {
2488         if (change->args[arg].mode & MODE_REMOVE)
2489             continue;
2490         if (mode != '+')
2491             chbuf.modes[chbuf.modes_used++] = mode = '+';
2492         switch (change->args[arg].mode) {
2493         case MODE_BAN:
2494             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2495             break;
2496         case MODE_EXEMPT:
2497             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2498             break;
2499         default:
2500             if (change->args[arg].mode & MODE_CHANOP)
2501                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2502             if (change->args[arg].mode & MODE_HALFOP)
2503                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2504             if (change->args[arg].mode & MODE_VOICE)
2505                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2506             break;
2507         }
2508     }
2509
2510     /* Flush the buffer and apply changes locally */
2511     if (chbuf.modes_used > 0) {
2512         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2513         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2514         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2515     }
2516     mod_chanmode_apply(who, channel, change);
2517 }
2518
2519 char *
2520 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2521 {
2522     unsigned int used = 0;
2523     assert(change->argc <= change->alloc_argc);
2524     if (change->modes_clear) {
2525         outbuff[used++] = '-';
2526 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2527         DO_MODE_CHAR(PRIVATE, 'p');
2528         DO_MODE_CHAR(SECRET, 's');
2529         DO_MODE_CHAR(MODERATED, 'm');
2530         DO_MODE_CHAR(TOPICLIMIT, 't');
2531         DO_MODE_CHAR(INVITEONLY, 'i');
2532         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2533         DO_MODE_CHAR(LIMIT, 'l');
2534         DO_MODE_CHAR(KEY, 'k');
2535         DO_MODE_CHAR(DELAYJOINS, 'D');
2536         DO_MODE_CHAR(REGONLY, 'r');
2537         DO_MODE_CHAR(NOCOLORS, 'c');
2538         DO_MODE_CHAR(NOCTCPS, 'C');
2539         DO_MODE_CHAR(STRIPCOLOR, 'S');
2540         DO_MODE_CHAR(MODUNREG, 'M');
2541         DO_MODE_CHAR(NONOTICE, 'N');
2542         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2543         DO_MODE_CHAR(NOAMSG, 'T');
2544         DO_MODE_CHAR(OPERSONLY, 'O');
2545         DO_MODE_CHAR(REGISTERED, 'z');
2546         DO_MODE_CHAR(SSLONLY, 'Z');
2547 #undef DO_MODE_CHAR
2548     }
2549     if (change->modes_set) {
2550         outbuff[used++] = '+';
2551 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2552         DO_MODE_CHAR(PRIVATE, 'p');
2553         DO_MODE_CHAR(SECRET, 's');
2554         DO_MODE_CHAR(MODERATED, 'm');
2555         DO_MODE_CHAR(TOPICLIMIT, 't');
2556         DO_MODE_CHAR(INVITEONLY, 'i');
2557         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2558         DO_MODE_CHAR(DELAYJOINS, 'D');
2559         DO_MODE_CHAR(REGONLY, 'r');
2560         DO_MODE_CHAR(NOCOLORS, 'c');
2561         DO_MODE_CHAR(NOCTCPS, 'C');
2562         DO_MODE_CHAR(STRIPCOLOR, 'S');
2563         DO_MODE_CHAR(MODUNREG, 'M');
2564         DO_MODE_CHAR(NONOTICE, 'N');
2565         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2566         DO_MODE_CHAR(NOAMSG, 'T');
2567         DO_MODE_CHAR(OPERSONLY, 'O');
2568         DO_MODE_CHAR(REGISTERED, 'z');
2569         DO_MODE_CHAR(SSLONLY, 'Z');
2570 #undef DO_MODE_CHAR
2571         switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2572         case MODE_KEY|MODE_LIMIT:
2573             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2574             break;
2575         case MODE_KEY:
2576             used += sprintf(outbuff+used, "k %s", change->new_key);
2577             break;
2578         case MODE_LIMIT:
2579             used += sprintf(outbuff+used, "l %d", change->new_limit);
2580             break;
2581         }
2582     }
2583     outbuff[used] = 0;
2584     return outbuff;
2585 }
2586
2587 static int
2588 clear_chanmode(struct chanNode *channel, const char *modes)
2589 {
2590     unsigned int remove;
2591
2592     for (remove = 0; *modes; modes++) {
2593         switch (*modes) {
2594         case 'o': remove |= MODE_CHANOP; break;
2595         case 'h': remove |= MODE_HALFOP; break;
2596         case 'v': remove |= MODE_VOICE; break;
2597         case 'p': remove |= MODE_PRIVATE; break;
2598         case 's': remove |= MODE_SECRET; break;
2599         case 'm': remove |= MODE_MODERATED; break;
2600         case 't': remove |= MODE_TOPICLIMIT; break;
2601         case 'i': remove |= MODE_INVITEONLY; break;
2602         case 'n': remove |= MODE_NOPRIVMSGS; break;
2603         case 'k':
2604             remove |= MODE_KEY;
2605             channel->key[0] = '\0';
2606             break;
2607         case 'l':
2608             remove |= MODE_LIMIT;
2609             channel->limit = 0;
2610             break;
2611         case 'b': remove |= MODE_BAN; break;
2612         case 'e': remove |= MODE_EXEMPT; break;
2613         case 'D': remove |= MODE_DELAYJOINS; break;
2614         case 'r': remove |= MODE_REGONLY; break;
2615         case 'c': remove |= MODE_NOCOLORS;
2616         case 'C': remove |= MODE_NOCTCPS; break;
2617         case 'S': remove |= MODE_STRIPCOLOR; break;
2618         case 'M': remove |= MODE_MODUNREG; break;
2619         case 'N': remove |= MODE_NONOTICE; break;
2620         case 'Q': remove |= MODE_NOQUITMSGS; break;
2621         case 'T': remove |= MODE_NOAMSG; break;
2622         case 'O': remove |= MODE_OPERSONLY; break;
2623         case 'z': remove |= MODE_REGISTERED; break;
2624         case 'Z': remove |= MODE_SSLONLY; break;
2625         }
2626     }
2627
2628     if (!remove)
2629         return 1;
2630
2631     /* Remove simple modes. */
2632     channel->modes &= ~remove;
2633
2634     /* If removing bans, kill 'em all. */
2635     if ((remove & MODE_BAN) && channel->banlist.used) {
2636         unsigned int i;
2637         for (i=0; i<channel->banlist.used; i++)
2638             free(channel->banlist.list[i]);
2639         channel->banlist.used = 0;
2640     }
2641
2642     /* If removing exempts, kill 'em all. */
2643     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2644         unsigned int i;
2645         for (i=0; i<channel->exemptlist.used; i++)
2646             free(channel->exemptlist.list[i]);
2647         channel->exemptlist.used = 0;
2648     }
2649
2650     /* Remove member modes. */
2651     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2652         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2653         unsigned int i;
2654
2655         for (i = 0; i < channel->members.used; i++)
2656             channel->members.list[i]->modes &= mask;
2657     }
2658
2659     return 1;
2660 }
2661
2662 void
2663 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2664 {
2665     unsigned int numeric = user->num_local;
2666     if (numeric >= num_privmsg_funcs) {
2667         int newnum = numeric + 8;
2668         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2669         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2670         num_privmsg_funcs = newnum;
2671     }
2672     if (privmsg_funcs[numeric])
2673         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2674     privmsg_funcs[numeric] = handler;
2675 }
2676
2677 void
2678 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2679 {
2680     unsigned int x;
2681
2682     if (!user || handler)
2683       return; /* this really only works with users */
2684
2685     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2686
2687     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2688        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2689
2690     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2691     num_privmsg_funcs--;
2692 }
2693
2694
2695 void
2696 reg_notice_func(struct userNode *user, privmsg_func_t handler)
2697 {
2698     unsigned int numeric = user->num_local;
2699     if (numeric >= num_notice_funcs) {
2700         int newnum = numeric + 8;
2701         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2702         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2703         num_notice_funcs = newnum;
2704     }
2705     if (notice_funcs[numeric])
2706         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2707     notice_funcs[numeric] = handler;
2708 }
2709
2710 void
2711 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2712 {
2713     unsigned int x;
2714
2715     if (!user || handler)
2716           return; /* this really only works with users */
2717
2718     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2719
2720     for (x = user->num_local+1; x < num_notice_funcs; x++)
2721        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2722
2723     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2724     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2725     num_notice_funcs--;
2726 }
2727
2728 void
2729 reg_oper_func(oper_func_t handler)
2730 {
2731     if (of_used == of_size) {
2732         if (of_size) {
2733             of_size <<= 1;
2734             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2735         } else {
2736             of_size = 8;
2737             of_list = malloc(of_size*sizeof(oper_func_t));
2738         }
2739     }
2740     of_list[of_used++] = handler;
2741 }
2742
2743 static void
2744 call_oper_funcs(struct userNode *user)
2745 {
2746     unsigned int n;
2747     if (IsLocal(user))
2748         return;
2749     for (n=0; n<of_used; n++)
2750         of_list[n](user);
2751 }
2752
2753 static void
2754 send_burst(void)
2755 {
2756     unsigned int i, hop, max_hop=1;
2757     dict_iterator_t it;
2758
2759     /* burst (juped) servers, closest first (except self, which is sent already) */
2760     for (i=0; i<ArrayLength(servers_num); i++)
2761         if (servers_num[i] && servers_num[i]->hops > max_hop)
2762             max_hop = servers_num[i]->hops;
2763     for (hop=1; hop<=max_hop; hop++) {
2764         for (i=0;i<ArrayLength(servers_num);i++) {
2765             if (servers_num[i]
2766                 && (servers_num[i]->hops == hop)
2767                 && (servers_num[i] != self->uplink))
2768                 irc_server(servers_num[i]);
2769         }
2770     }
2771
2772     /* burst local nicks */
2773     for (i=0; i<=self->num_mask; i++)
2774         if (self->users[i])
2775             irc_user(self->users[i]);
2776
2777     /* build dict of unbursted channel names (just copy existing channels) */
2778     unbursted_channels = dict_new();
2779     for (it = dict_first(channels); it; it = iter_next(it))
2780         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2781 }