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 "nickserv.h"
  22 #include "chanserv.h"
  23 #include "proto-common.c"
  24
  25 /* Full commands. */
  26 #define CMD_ACCOUNT             "ACCOUNT"
  27 #define CMD_ADMIN               "ADMIN"
  28 #define CMD_ASLL                "ASLL"
  29 #define CMD_AWAY                "AWAY"
  30 #define CMD_BURST               "BURST"
  31 #define CMD_CLEARMODE           "CLEARMODE"
  32 #define CMD_CLOSE               "CLOSE"
  33 #define CMD_CNOTICE             "CNOTICE"
  34 #define CMD_CONNECT             "CONNECT"
  35 #define CMD_CPRIVMSG            "CPRIVMSG"
  36 #define CMD_CREATE              "CREATE"
  37 #define CMD_DESTRUCT            "DESTRUCT"
  38 #define CMD_DESYNCH             "DESYNCH"
  39 #define CMD_DIE                 "DIE"
  40 #define CMD_DNS                 "DNS"
  41 #define CMD_EOB                 "END_OF_BURST"
  42 #define CMD_EOB_ACK             "EOB_ACK"
  43 #define CMD_ERROR               "ERROR"
  44 #define CMD_FAKEHOST            "FAKE"
  45 #define CMD_GET                 "GET"
  46 #define CMD_GLINE               "GLINE"
  47 #define CMD_HASH                "HASH"
  48 #define CMD_HELP                "HELP"
  49 #define CMD_INFO                "INFO"
  50 #define CMD_INVITE              "INVITE"
  51 #define CMD_ISON                "ISON"
  52 #define CMD_JOIN                "JOIN"
  53 #define CMD_JUPE                "JUPE"
  54 #define CMD_KICK                "KICK"
  55 #define CMD_KILL                "KILL"
  56 #define CMD_LINKS               "LINKS"
  57 #define CMD_LIST                "LIST"
  58 #define CMD_LUSERS              "LUSERS"
  59 #define CMD_MAP                 "MAP"
  60 #define CMD_MARK                "MARK"
  61 #define CMD_MODE                "MODE"
  62 #define CMD_MOTD                "MOTD"
  63 #define CMD_NAMES               "NAMES"
  64 #define CMD_NICK                "NICK"
  65 #define CMD_NOTICE              "NOTICE"
  66 #define CMD_OPER                "OPER"
  67 #define CMD_OPMODE              "OPMODE"
  68 #define CMD_PART                "PART"
  69 #define CMD_PASS                "PASS"
  70 #define CMD_PING                "PING"
  71 #define CMD_PONG                "PONG"
  72 #define CMD_POST                "POST"
  73 #define CMD_PRIVMSG             "PRIVMSG"
  74 #define CMD_PRIVS               "PRIVS"
  75 #define CMD_PROTO               "PROTO"
  76 #define CMD_QUIT                "QUIT"
  77 #define CMD_REHASH              "REHASH"
  78 #define CMD_RESET               "RESET"
  79 #define CMD_RESTART             "RESTART"
  80 #define CMD_RPING               "RPING"
  81 #define CMD_RPONG               "RPONG"
  82 #define CMD_SERVER              "SERVER"
  83 #define CMD_SERVLIST            "SERVLIST"
  84 #define CMD_SERVSET             "SERVSET"
  85 #define CMD_SET                 "SET"
  86 #define CMD_SETTIME             "SETTIME"
  87 #define CMD_SILENCE             "SILENCE"
  88 #define CMD_SQUERY              "SQUERY"
  89 #define CMD_SQUIT               "SQUIT"
  90 #define CMD_STATS               "STATS"
  91 #define CMD_SVSNICK             "SVSNICK"
  92 #define CMD_TIME                "TIME"
  93 #define CMD_TOPIC               "TOPIC"
  94 #define CMD_TRACE               "TRACE"
  95 #define CMD_UPING               "UPING"
  96 #define CMD_USER                "USER"
  97 #define CMD_USERHOST            "USERHOST"
  98 #define CMD_USERIP              "USERIP"
  99 #define CMD_VERSION             "VERSION"
 100 #define CMD_WALLCHOPS           "WALLCHOPS"
 101 #define CMD_WALLOPS             "WALLOPS"
 102 #define CMD_WALLHOPS            "WALLHOPS"
 103 #define CMD_WALLUSERS           "WALLUSERS"
 104 #define CMD_WALLVOICES          "WALLVOICES"
 105 #define CMD_WALLHOPS            "WALLHOPS"
 106 #define CMD_WHO                 "WHO"
 107 #define CMD_WHOIS               "WHOIS"
 108 #define CMD_WHOWAS              "WHOWAS"
 109
 110 /* Tokenized commands. */
 111 #define TOK_ACCOUNT             "AC"
 112 #define TOK_ADMIN               "AD"
 113 #define TOK_ASLL                "LL"
 114 #define TOK_AWAY                "A"
 115 #define TOK_BURST               "B"
 116 #define TOK_CLEARMODE           "CM"
 117 #define TOK_CLOSE               "CLOSE"
 118 #define TOK_CNOTICE             "CN"
 119 #define TOK_CONNECT             "CO"
 120 #define TOK_CPRIVMSG            "CP"
 121 #define TOK_CREATE              "C"
 122 #define TOK_DESTRUCT            "DE"
 123 #define TOK_DESYNCH             "DS"
 124 #define TOK_DIE                 "DIE"
 125 #define TOK_DNS                 "DNS"
 126 #define TOK_EOB                 "EB"
 127 #define TOK_EOB_ACK             "EA"
 128 #define TOK_ERROR               "Y"
 129 #define TOK_EXEMPT              "EX"
 130 #define TOK_FAKEHOST            "FA"
 131 #define TOK_GET                 "GET"
 132 #define TOK_GLINE               "GL"
 133 #define TOK_HASH                "HASH"
 134 #define TOK_HELP                "HELP"
 135 #define TOK_INFO                "F"
 136 #define TOK_INVITE              "I"
 137 #define TOK_ISON                "ISON"
 138 #define TOK_JOIN                "J"
 139 #define TOK_JUPE                "JU"
 140 #define TOK_KICK                "K"
 141 #define TOK_KILL                "D"
 142 #define TOK_LINKS               "LI"
 143 #define TOK_LIST                "LIST"
 144 #define TOK_LUSERS              "LU"
 145 #define TOK_MAP                 "MAP"
 146 #define TOK_MARK                "MK"
 147 #define TOK_MODE                "M"
 148 #define TOK_MOTD                "MO"
 149 #define TOK_NAMES               "E"
 150 #define TOK_NICK                "N"
 151 #define TOK_NOTICE              "O"
 152 #define TOK_OPER                "OPER"
 153 #define TOK_OPMODE              "OM"
 154 #define TOK_PART                "L"
 155 #define TOK_PASS                "PA"
 156 #define TOK_PING                "G"
 157 #define TOK_PONG                "Z"
 158 #define TOK_POST                "POST"
 159 #define TOK_PRIVMSG             "P"
 160 #define TOK_PRIVS               "PRIVS"
 161 #define TOK_PROTO               "PROTO"
 162 #define TOK_QUIT                "Q"
 163 #define TOK_REHASH              "REHASH"
 164 #define TOK_RESET               "RESET"
 165 #define TOK_RESTART             "RESTART"
 166 #define TOK_RPING               "RI"
 167 #define TOK_RPONG               "RO"
 168 #define TOK_SERVER              "S"
 169 #define TOK_SERVLIST            "SERVSET"
 170 #define TOK_SERVSET             "SERVSET"
 171 #define TOK_SET                 "SET"
 172 #define TOK_SETTIME             "SE"
 173 #define TOK_SILENCE             "U"
 174 #define TOK_SQUERY              "SQUERY"
 175 #define TOK_SQUIT               "SQ"
 176 #define TOK_STATS               "R"
 177 #define TOK_SVSNICK             "SN"
 178 #define TOK_TIME                "TI"
 179 #define TOK_TOPIC               "T"
 180 #define TOK_TRACE               "TR"
 181 #define TOK_UPING               "UP"
 182 #define TOK_USER                "USER"
 183 #define TOK_USERHOST            "USERHOST"
 184 #define TOK_USERIP              "USERIP"
 185 #define TOK_VERSION             "V"
 186 #define TOK_WALLCHOPS           "WC"
 187 #define TOK_WALLOPS             "WA"
 188 #define TOK_WALLHOPS            "WH"
 189 #define TOK_WALLUSERS           "WU"
 190 #define TOK_WALLVOICES          "WV"
 191 #define TOK_WALLHOPS            "WH"
 192 #define TOK_WHO                 "H"
 193 #define TOK_WHOIS               "W"
 194 #define TOK_WHOWAS              "X"
 195
 196 /* Protocol messages; aliased to full commands or tokens depending
 197    on compile-time configuration. ircu prefers tokens WITH THE
 198    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 199    tokenized, because clients' (ie. a linking server) commands are
 200    only checked against the full command list.
 201 */
 202 #if defined(ENABLE_TOKENS)
 203 #define TYPE(NAME)              TOK_ ## NAME
 204 #else /* !ENABLE_TOKENS */
 205 #define TYPE(NAME)              CMD_ ## NAME
 206 #endif /* ENABLE_TOKENS */
 207
 208 #define P10_ACCOUNT             TYPE(ACCOUNT)
 209 #define P10_ADMIN               TYPE(ADMIN)
 210 #define P10_ASLL                TYPE(ASLL)
 211 #define P10_AWAY                TYPE(AWAY)
 212 #define P10_BURST               TYPE(BURST)
 213 #define P10_CLEARMODE           TYPE(CLEARMODE)
 214 #define P10_CLOSE               TYPE(CLOSE)
 215 #define P10_CNOTICE             TYPE(CNOTICE)
 216 #define P10_CONNECT             TYPE(CONNECT)
 217 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 218 #define P10_CREATE              TYPE(CREATE)
 219 #define P10_DESTRUCT            TYPE(DESTRUCT)
 220 #define P10_DESYNCH             TYPE(DESYNCH)
 221 #define P10_DIE                 TYPE(DIE)
 222 #define P10_DNS                 TYPE(DNS)
 223 #define P10_EOB                 TYPE(EOB)
 224 #define P10_EOB_ACK             TYPE(EOB_ACK)
 225 #define P10_ERROR               TYPE(ERROR)
 226 #define P10_FAKEHOST            TYPE(FAKEHOST)
 227 #define P10_GET                 TYPE(GET)
 228 #define P10_GLINE               TYPE(GLINE)
 229 #define P10_HASH                TYPE(HASH)
 230 #define P10_HELP                TYPE(HELP)
 231 #define P10_INFO                TYPE(INFO)
 232 #define P10_INVITE              TYPE(INVITE)
 233 #define P10_ISON                TYPE(ISON)
 234 #define P10_JOIN                TYPE(JOIN)
 235 #define P10_JUPE                TYPE(JUPE)
 236 #define P10_KICK                TYPE(KICK)
 237 #define P10_KILL                TYPE(KILL)
 238 #define P10_LINKS               TYPE(LINKS)
 239 #define P10_LIST                TYPE(LIST)
 240 #define P10_LUSERS              TYPE(LUSERS)
 241 #define P10_MAP                 TYPE(MAP)
 242 #define P10_MARK                TYPE(MARK)
 243 #define P10_MODE                TYPE(MODE)
 244 #define P10_MOTD                TYPE(MOTD)
 245 #define P10_NAMES               TYPE(NAMES)
 246 #define P10_NICK                TYPE(NICK)
 247 #define P10_NOTICE              TYPE(NOTICE)
 248 #define P10_OPER                TYPE(OPER)
 249 #define P10_OPMODE              TYPE(OPMODE)
 250 #define P10_PART                TYPE(PART)
 251 #define P10_PASS                CMD_PASS
 252 #define P10_PING                TYPE(PING)
 253 #define P10_PONG                TYPE(PONG)
 254 #define P10_POST                TYPE(POST)
 255 #define P10_PRIVMSG             TYPE(PRIVMSG)
 256 #define P10_PRIVS               TYPE(PRIVS)
 257 #define P10_PROTO               TYPE(PROTO)
 258 #define P10_QUIT                TYPE(QUIT)
 259 #define P10_REHASH              TYPE(REHASH)
 260 #define P10_RESET               TYPE(RESET)
 261 #define P10_RESTART             TYPE(RESTART)
 262 #define P10_RPING               TYPE(RPING)
 263 #define P10_RPONG               TYPE(RPONG)
 264 #define P10_SERVER              CMD_SERVER
 265 #define P10_SERVLIST            TYPE(SERVLIST)
 266 #define P10_SERVSET             TYPE(SERVSET)
 267 #define P10_SET                 TYPE(SET)
 268 #define P10_SETTIME             TYPE(SETTIME)
 269 #define P10_SILENCE             TYPE(SILENCE)
 270 #define P10_SQUERY              TYPE(SQUERY)
 271 #define P10_SQUIT               TYPE(SQUIT)
 272 #define P10_STATS               TYPE(STATS)
 273 #define P10_SVSNICK             TYPE(SVSNICK)
 274 #define P10_TIME                TYPE(TIME)
 275 #define P10_TOPIC               TYPE(TOPIC)
 276 #define P10_TRACE               TYPE(TRACE)
 277 #define P10_UPING               TYPE(UPING)
 278 #define P10_USER                TYPE(USER)
 279 #define P10_USERHOST            TYPE(USERHOST)
 280 #define P10_USERIP              TYPE(USERIP)
 281 #define P10_VERSION             TYPE(VERSION)
 282 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 283 #define P10_WALLOPS             TYPE(WALLOPS)
 284 #define P10_WALLHOPS            TYPE(WALLHOPS)
 285 #define P10_WALLUSERS           TYPE(WALLUSERS)
 286 #define P10_WALLVOICES          TYPE(WALLVOICES)
 287 #define P10_WHO                 TYPE(WHO)
 288 #define P10_WHOIS               TYPE(WHOIS)
 289 #define P10_WHOWAS              TYPE(WHOWAS)
 290 #define P10_EXEMPT              TYPE(EXEMPT)
 291
 292 /* Servers claiming to have a boot or link time before PREHISTORY
 293  * trigger errors to the log.  We hope no server has been running
 294  * constantly since September 1994.  :)
 295  */
 296 #define PREHISTORY 780000000
 297
 298 static struct server *servers_num[64*64];
 299 static privmsg_func_t *privmsg_funcs;
 300 static unsigned int num_privmsg_funcs;
 301 static privmsg_func_t *notice_funcs;
 302 static unsigned int num_notice_funcs;
 303 static struct dict *unbursted_channels;
 304 static char *his_servername;
 305 static char *his_servercomment;
 306
 307 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);
 308
 309 extern int off_channel;
 310
 311 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 312  * server and Y's indentifying the client on that server. */
 313 struct server*
 314 GetServerN(const char *numeric)
 315 {
 316     switch (strlen(numeric)) {
 317     default:
 318         return servers_num[base64toint(numeric, 2)];
 319     case 4:
 320     case 3:
 321     case 1:
 322         return servers_num[base64toint(numeric, 1)];
 323     case 0:
 324         return NULL;
 325     }
 326 }
 327
 328 struct userNode*
 329 GetUserN(const char *numeric) /* using numeric */
 330 {
 331     struct userNode *un;
 332     struct server *s;
 333     int n, slen, ulen;
 334
 335     switch (strlen(numeric)) {
 336     default:
 337         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 338         return NULL;
 339     case 5: slen = 2; ulen = 3; break;
 340     case 4: slen = 1; ulen = 3; break;
 341     case 3: slen = 1; ulen = 2; break;
 342     case 2: case 1: case 0:
 343         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 344         return NULL;
 345     }
 346     if (!(s = servers_num[base64toint(numeric, slen)])) {
 347         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 348         return NULL;
 349     }
 350     n = base64toint(numeric+slen, ulen) & s->num_mask;
 351     if (!(un = s->users[n])) {
 352         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 353     }
 354     return un;
 355 }
 356
 357 static void
 358 privmsg_user_helper(struct userNode *un, void *data)
 359 {
 360     struct privmsg_desc *pd = data;
 361     unsigned int num = un->num_local;
 362     if (!pd->is_notice) {
 363         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 364             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 365         }
 366     } else {
 367         if ((num < num_notice_funcs) && notice_funcs[num]) {
 368             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 369         }
 370     }
 371 }
 372
 373 void
 374 irc_server(struct server *srv)
 375 {
 376     char extranum[COMBO_NUMERIC_LEN+1];
 377
 378     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 379     if (srv == self) {
 380         /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
 381         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
 382                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 383     } else {
 384         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
 385                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 386     }
 387 }
 388
 389 void
 390 irc_user(struct userNode *user)
 391 {
 392     char b64ip[7];
 393     if (!user)
 394         return;
 395     inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
 396     if (user->modes) {
 397         int modelen;
 398         char modes[32];
 399
 400         modelen = 0;
 401         if (IsOper(user))
 402             modes[modelen++] = 'o';
 403         if (IsInvisible(user))
 404             modes[modelen++] = 'i';
 405         if (IsWallOp(user))
 406             modes[modelen++] = 'w';
 407         if (IsService(user))
 408             modes[modelen++] = 'k';
 409         if (IsServNotice(user))
 410             modes[modelen++] = 's';
 411         if (IsDeaf(user))
 412             modes[modelen++] = 'd';
 413         if (IsGlobal(user))
 414             modes[modelen++] = 'g';
 415         // sethost - reed/apples
 416         // if (IsHelperIrcu(user))
 417         if (IsSetHost(user))
 418             modes[modelen++] = 'h';
 419         if (IsFakeHost(user))
 420             modes[modelen++] = 'f';
 421         if (IsHiddenHost(user))
 422             modes[modelen++] = 'x';
 423         modes[modelen] = 0;
 424
 425         /* we don't need to put the + in modes because it's in the format string. */
 426         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 427                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 428     } else {
 429         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 430                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 431     }
 432 }
 433
 434 void
 435 irc_rename(struct userNode *user, const char *new_handle)
 436 {
 437     putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 438 }
 439
 440 void
 441 irc_delete(struct userNode *user)
 442 {
 443     putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 444 }
 445
 446 void
 447 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 448 {
 449     putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 450 }
 451
 452 void
 453 irc_fakehost(struct userNode *user, const char *host)
 454 {
 455     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 456 }
 457
 458 void
 459 irc_regnick(UNUSED_ARG(struct userNode *user))
 460 {
 461     /* no operation here */
 462 }
 463
 464 void
 465 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 466 {
 467     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 468 }
 469
 470 void
 471 irc_fetchtopic(struct userNode *from, const char *to)
 472 {
 473     if (!from || !to)
 474         return;
 475     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 476 }
 477
 478 void
 479 irc_squit(struct server *srv, const char *message, const char *service_message)
 480 {
 481     if (!service_message)
 482         service_message = message;
 483
 484     /* Are we leaving the network? */
 485     if (srv == self && cManager.uplink->state == CONNECTED) {
 486         unsigned int i;
 487
 488         /* Quit all clients linked to me. */
 489         for (i = 0; i <= self->num_mask; i++) {
 490             if (!self->users[i])
 491                 continue;
 492             irc_quit(self->users[i], service_message);
 493         }
 494     }
 495
 496     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 497
 498     if (srv == self) {
 499         /* Force a reconnect to the currently selected server. */
 500         cManager.uplink->tries = 0;
 501         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 502         close_socket();
 503     }
 504 }
 505
 506 void
 507 irc_wallchops(struct userNode *from, const char *to, const char *message)
 508 {
 509     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 510 }
 511
 512 void
 513 irc_notice(struct userNode *from, const char *to, const char *message)
 514 {
 515     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 516 }
 517
 518 void
 519 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 520 {
 521     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 522 }
 523
 524 void
 525 irc_privmsg(struct userNode *from, const char *to, const char *message)
 526 {
 527     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 528 }
 529
 530 void
 531 irc_eob(void)
 532 {
 533     putsock("%s " P10_EOB, self->numeric);
 534 }
 535
 536 void
 537 irc_eob_ack(void)
 538 {
 539     putsock("%s " P10_EOB_ACK, self->numeric);
 540 }
 541
 542 void
 543 irc_ping(const char *payload)
 544 {
 545     putsock("%s " P10_PING " :%s", self->numeric, payload);
 546 }
 547
 548 void
 549 irc_pong(const char *who, const char *data)
 550 {
 551     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 552 }
 553
 554 void
 555 irc_pass(const char *passwd)
 556 {
 557     putsock(P10_PASS " :%s", passwd);
 558 }
 559
 560 void
 561 irc_introduce(const char *passwd)
 562 {
 563     void timed_send_ping(void *data);
 564
 565     self->self_burst = self->burst = 1;
 566     irc_pass(passwd);
 567     irc_server(self);
 568     burst_length = 0;
 569     timeq_add(now + ping_freq, timed_send_ping, 0);
 570 }
 571
 572 void
 573 irc_gline(struct server *srv, struct gline *gline)
 574 {
 575     putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
 576             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
 577 }
 578
 579 void
 580 irc_settime(const char *srv_name_mask, time_t new_time)
 581 {
 582     ioset_set_time(new_time);
 583     if (!strcmp(srv_name_mask, "*"))
 584         srv_name_mask = "";
 585     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 586 }
 587
 588 void
 589 irc_ungline(const char *mask)
 590 {
 591     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 592 }
 593
 594 static void
 595 irc_burst(struct chanNode *chan)
 596 {
 597     char burst_line[512];
 598     int pos, base_len, len;
 599     struct modeNode *mn;
 600     struct banNode *bn;
 601     struct exemptNode *en;
 602     long last_mode=-1;
 603     unsigned int n;
 604
 605     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 606                        self->numeric, chan->name, chan->timestamp);
 607     len = irc_make_chanmode(chan, burst_line+base_len);
 608     pos = base_len + len;
 609     if (len)
 610         burst_line[pos++] = ' ';
 611
 612     /* dump the users */
 613     for (n=0; n<chan->members.used; n++) {
 614         mn = chan->members.list[n];
 615         if (pos > 500) {
 616             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 617             putsock("%s", burst_line);
 618             pos = base_len;
 619             last_mode = -1;
 620         }
 621         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 622         pos += strlen(mn->user->numeric);
 623         if (mn->modes && (mn->modes != last_mode)) {
 624             last_mode = mn->modes;
 625             burst_line[pos++] = ':';
 626             if (last_mode & MODE_CHANOP)
 627                 burst_line[pos++] = 'o';
 628             if (last_mode & MODE_HALFOP)
 629                 burst_line[pos++] = 'h';
 630             if (last_mode & MODE_VOICE)
 631                 burst_line[pos++] = 'v';
 632         }
 633         if ((n+1)<chan->members.used)
 634             burst_line[pos++] = ',';
 635     }
 636     if (chan->banlist.used) {
 637         /* dump the bans */
 638         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 639             burst_line[pos-1] = 0;
 640             putsock("%s", burst_line);
 641             pos = base_len;
 642         } else {
 643             burst_line[pos++] = ' ';
 644         }
 645
 646         burst_line[pos++] = ':';
 647         burst_line[pos++] = '%';
 648         base_len = pos;
 649         for (n=0; n<chan->banlist.used; n++) {
 650             bn = chan->banlist.list[n];
 651             len = strlen(bn->ban);
 652             if (pos+len+1 > 510) {
 653                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 654                 putsock("%s", burst_line);
 655                 pos = base_len;
 656             }
 657             memcpy(burst_line+pos, bn->ban, len);
 658             pos += len;
 659             burst_line[pos++] = ' ';
 660         }
 661     }
 662     if (chan->exemptlist.used) {
 663         /* dump the exempt */
 664         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 665             burst_line[pos-1] = 0;
 666             putsock("%s", burst_line);
 667             pos = base_len;
 668         } else {
 669             burst_line[pos++] = ' ';
 670         }
 671
 672         burst_line[pos++] = ' ';
 673         burst_line[pos++] = '~';
 674         burst_line[pos++] = ' ';
 675         base_len = pos;
 676         for (n=0; n<chan->exemptlist.used; n++) {
 677             en = chan->exemptlist.list[n];
 678             len = strlen(en->exempt);
 679             if (pos+len+1 > 510) {
 680                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 681                 putsock("%s", burst_line);
 682                 pos = base_len;
 683             }
 684             memcpy(burst_line+pos, en->exempt, len);
 685             pos += len;
 686             burst_line[pos++] = ' ';
 687         }
 688     }
 689     /* print the last line */
 690     burst_line[pos] = 0;
 691     putsock("%s", burst_line);
 692 }
 693
 694 void
 695 irc_quit(struct userNode *user, const char *message)
 696 {
 697     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 698 }
 699
 700 void
 701 irc_error(const char *to, const char *message)
 702 {
 703     if (to) {
 704         putsock("%s " P10_ERROR " :%s", to, message);
 705     } else {
 706         putsock(":%s " P10_ERROR " :%s", self->name, message);
 707     }
 708 }
 709
 710 void
 711 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 712 {
 713     if (from) {
 714         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 715                 from->numeric, target->numeric, self->name, from->nick, message);
 716     } else {
 717         putsock("%s " P10_KILL " %s :%s (%s)",
 718                 self->numeric, target->numeric, self->name, message);
 719     }
 720 }
 721
 722 void
 723 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 724 {
 725     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 726             (from ? from->numeric : self->numeric),
 727             target->name, modes, target->timestamp);
 728 }
 729
 730 /* Added to allow services to mode users
 731    2005 - 8 - 10 by Life4Christ
 732 */
 733 void
 734 irc_umode(struct userNode *target, const char *modes)
 735 {
 736     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
 737 }
 738
 739
 740 void
 741 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 742 {
 743     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 744 }
 745
 746 void
 747 irc_join(struct userNode *who, struct chanNode *what)
 748 {
 749     if (what->members.used == 1) {
 750         putsock("%s " P10_CREATE " %s %lu",
 751                 who->numeric, what->name, what->timestamp);
 752     } else {
 753         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
 754     }
 755 }
 756
 757 void
 758 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
 759 {
 760     const char *numeric;
 761     struct modeNode *mn = GetUserMode(channel, who);
 762     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
 763     putsock("%s " P10_KICK " %s %s :%s",
 764             numeric, channel->name, target->numeric, msg);
 765 }
 766
 767 void
 768 irc_stats(struct userNode *from, struct server *target, char type)
 769 {
 770     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
 771 }
 772
 773 void
 774 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
 775 {
 776     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
 777 }
 778
 779 void
 780 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
 781 {
 782     if (reason) {
 783         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
 784     } else {
 785         putsock("%s " P10_PART " %s", who->numeric, what->name);
 786     }
 787 }
 788
 789 void
 790 irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
 791 {
 792     putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
 793 }
 794
 795 void
 796 irc_raw(const char *what)
 797 {
 798     putsock("%s", what);
 799 }
 800
 801 void
 802 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
 803 {
 804     va_list arg_list;
 805     char buffer[MAXLEN];
 806     va_start(arg_list, format);
 807     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 808     buffer[MAXLEN-1] = 0;
 809     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
 810 }
 811
 812 static void send_burst(void);
 813
 814 static void
 815 change_nicklen(int new_nicklen)
 816 {
 817     unsigned int nn;
 818     char new_nick[NICKLEN+1];
 819     struct userNode *user;
 820
 821     nicklen = new_nicklen;
 822     /* fix up any users we have here */
 823     for (nn=0; nn<=self->num_mask; nn++) {
 824         if (!(user = self->users[nn]))
 825             continue;
 826         safestrncpy(new_nick, user->nick, sizeof(new_nick));
 827         new_nick[nicklen] = 0;
 828         NickChange(user, new_nick, 1);
 829     }
 830 }
 831
 832 static CMD_FUNC(cmd_whois)
 833 {
 834     struct userNode *from;
 835     struct userNode *who;
 836
 837     if (argc < 3)
 838         return 0;
 839     if (!(from = GetUserH(origin))) {
 840         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
 841         return 0;
 842     }
 843     if(!(who = GetUserH(argv[2]))) {
 844         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
 845         return 1;
 846     }
 847     if (IsHiddenHost(who) && !IsOper(from)) {
 848         /* Just stay quiet. */
 849         return 1;
 850     }
 851     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
 852     if (his_servername && his_servercomment)
 853         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
 854     else
 855         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
 856     if (IsOper(who))
 857         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
 858     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
 859     return 1;
 860 }
 861
 862 static CMD_FUNC(cmd_server)
 863 {
 864     struct server *srv;
 865     const char *str;
 866
 867     if (argc < 8)
 868         return 0;
 869     if (self->uplink) {
 870         /* another server introduced us */
 871         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 872         if (!srv)
 873             return 0;
 874         srv->self_burst = argv[5][0] == 'J';
 875         srv->burst = 1;
 876     } else {
 877         /* this must be our uplink */
 878         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 879         if (!srv)
 880             return 0;
 881         srv->self_burst = argv[5][0] == 'J';
 882         srv->burst = 1;
 883         if ((argv[7][0] == '+') && !force_n2k) {
 884             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
 885         }
 886         send_burst();
 887     }
 888
 889     /* Fix up our timestamps if necessary. */
 890     if (srv->boot <= PREHISTORY) {
 891         /* Server from the mists of time.. */
 892         if (srv->hops == 1) {
 893             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
 894         }
 895     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
 896                && enabled_string(str)) {
 897         /* If we have a reliable clock, we just keep our current time. */
 898     } else {
 899         if (srv->boot <= self->boot) {
 900             /* The other server is older than us.  Accept their timestamp.
 901              * Alternately, we are same age, but we accept their time
 902              * since we are linking to them. */
 903             self->boot = srv->boot;
 904             ioset_set_time(srv->link);
 905         }
 906     }
 907     if (srv == self->uplink) {
 908         extern time_t burst_begin;
 909         burst_begin = now;
 910     }
 911     return 1;
 912 }
 913
 914 static CMD_FUNC(cmd_eob)
 915 {
 916     struct server *sender;
 917     dict_iterator_t it;
 918     unsigned int ii;
 919
 920     if (!(sender = GetServerH(origin)))
 921         return 0;
 922     if (sender == self->uplink) {
 923         cManager.uplink->state = CONNECTED;
 924         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
 925             irc_burst(iter_data(it));
 926         dict_delete(unbursted_channels);
 927         unbursted_channels = NULL;
 928         irc_eob();
 929         irc_eob_ack();
 930     }
 931     sender->self_burst = 0;
 932     recalc_bursts(sender);
 933     for (ii=0; ii<slf_used; ii++)
 934         slf_list[ii](sender);
 935     return 1;
 936 }
 937
 938 static CMD_FUNC(cmd_eob_ack)
 939 {
 940     extern time_t burst_begin;
 941
 942     if (GetServerH(origin) == self->uplink) {
 943         burst_length = now - burst_begin;
 944         self->self_burst = self->burst = 0;
 945     }
 946     cManager.uplink->state = CONNECTED;
 947     return 1;
 948 }
 949
 950 static CMD_FUNC(cmd_ping)
 951 {
 952     struct server *srv;
 953     struct userNode *un;
 954
 955     if(argc > 3)
 956         irc_pong(argv[2], argv[1]);
 957     else if ((srv = GetServerH(origin)))
 958         irc_pong(self->name, srv->numeric);
 959     else if ((un = GetUserH(origin)))
 960         irc_pong(self->name, un->numeric);
 961     else
 962         irc_pong(self->name, origin);
 963
 964     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 965     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 966     timeq_add(now + ping_freq, timed_send_ping, 0);
 967     received_ping();
 968     return 1;
 969 }
 970
 971 static CMD_FUNC(cmd_error_nick)
 972 {
 973     /* Go back to original IRC length .. and try to reconnect :/ */
 974     change_nicklen(9);
 975     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
 976     return 1;
 977 }
 978
 979 struct create_desc {
 980     struct userNode *user;
 981     time_t when;
 982 };
 983
 984 static void
 985 join_helper(struct chanNode *chan, void *data)
 986 {
 987     struct create_desc *cd = data;
 988     AddChannelUser(cd->user, chan);
 989 }
 990
 991 static void
 992 create_helper(char *name, void *data)
 993 {
 994     struct create_desc *cd = data;
 995
 996     if (!strcmp(name, "0")) {
 997         while (cd->user->channels.used > 0)
 998             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
 999         return;
1000     }
1001
1002     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1003 }
1004
1005 static CMD_FUNC(cmd_create)
1006 {
1007     struct create_desc cd;
1008     struct userNode *user;
1009
1010     if ((argc < 3) || !(user = GetUserH(origin)))
1011         return 0;
1012     cd.user = user;
1013     cd.when = atoi(argv[2]);
1014     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1015     return 1;
1016 }
1017
1018 static CMD_FUNC(cmd_join)
1019 {
1020     struct create_desc cd;
1021
1022     if (!(cd.user = GetUserH(origin)))
1023         return 0;
1024     if (argc < 2)
1025         return 0;
1026     else if (argc < 3)
1027         cd.when = now;
1028     else
1029         cd.when = atoi(argv[2]);
1030     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1031     return 1;
1032 }
1033
1034 static CMD_FUNC(cmd_pong)
1035 {
1036     if (argc < 3)
1037         return 0;
1038     if (!strcmp(argv[2], self->name)) {
1039         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1040         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1041         timeq_add(now + ping_freq, timed_send_ping, 0);
1042         received_ping();
1043     }
1044     return 1;
1045 }
1046
1047 static CMD_FUNC(cmd_nick)
1048 {
1049     struct userNode *user;
1050     if ((user = GetUserH(origin))) {
1051         /* nick change (since the source is a user numeric) */
1052         if (argc < 2)
1053             return 0;
1054         NickChange(user, argv[1], 1);
1055     } else {
1056         struct server *serv;
1057         char modes[MAXLEN];
1058         /* new nick */
1059         if (argc < 9)
1060             return 0;
1061         serv = GetServerH(origin);
1062         if (argc > 9)
1063             unsplit_string(argv+6, argc-9, modes);
1064         else
1065             strcpy(modes, "+");
1066         AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1067     }
1068     return 1;
1069 }
1070
1071 static CMD_FUNC(cmd_account)
1072 {
1073     struct userNode *user;
1074     struct server *server;
1075     struct handle_info *hi;
1076
1077     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1078         return 0; /* Origin must be server. */
1079
1080     /* This next line appears to tremple origin.. why? */
1081     user = GetUserN(argv[1]);
1082     if (!user)
1083         return 1; /* A QUIT probably passed the ACCOUNT. */
1084
1085     if(!strcmp(argv[2],"C"))
1086     {
1087         if((hi = loc_auth(argv[4], argv[5])))
1088         {
1089             /* Return a AC A */
1090             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1091
1092         }
1093         else
1094         {
1095             /* Return a AC D */
1096             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1097         }
1098         return 1;
1099     }
1100     else if(!strcmp(argv[2],"R"))
1101        call_account_func(user, argv[3]);
1102     else
1103         call_account_func(user, argv[2]); /* For backward compatability */
1104     return 1;
1105 }
1106
1107 static CMD_FUNC(cmd_fakehost)
1108 {
1109     struct userNode *user;
1110
1111     if ((argc < 3) || !origin || !GetServerH(origin))
1112         return 0;
1113     if (!(user = GetUserN(argv[1])))
1114         return 1;
1115     assign_fakehost(user, argv[2], 0);
1116     return 1;
1117 }
1118
1119 static CMD_FUNC(cmd_burst)
1120 {
1121     extern int rel_age;
1122     char modes[MAXLEN], *members = "";
1123     static char exemptlist[MAXLEN], banlist[MAXLEN];
1124     unsigned int next = 3, res = 1;
1125     int ctype = 0, echeck = 0, bcheck = 0;
1126     struct chanNode *cNode;
1127     struct userNode *un;
1128     struct modeNode *mNode;
1129     long mode;
1130     char *user, *end, sep;
1131     time_t in_timestamp;
1132     char* parm = NULL;
1133
1134     if (argc < 3)
1135         return 0;
1136     modes[0] = 0;
1137
1138     exemptlist[0] = 0;
1139     banlist[0] = 0;
1140
1141     while (next < argc) {
1142         switch (argv[next][0]) {
1143         case '+': {
1144             const char *pos;
1145             int n_modes;
1146             for (pos=argv[next], n_modes = 1; *pos; pos++)
1147                 if ((*pos == 'k') || (*pos == 'l'))
1148                     n_modes++;
1149             unsplit_string(argv+next, n_modes, modes);
1150             next += n_modes;
1151             break;
1152         }
1153         case '%': {
1154             for(parm = mysep(&argv[next], " "); /* parm = first param */
1155                   parm;   /* While param is not null */
1156                   parm = mysep(&argv[next], " ")  /* parm = next param */
1157                )
1158             {
1159               switch (parm[0]) {
1160                 case '%': {
1161                   ctype = 1;
1162                   break;
1163                 }
1164                 case '~': {
1165                   ctype = 2;
1166                   break;
1167                 }
1168                 default: {
1169                   break;
1170                 }
1171               }
1172               if (ctype == 1) {
1173                 if (bcheck == 0) {
1174                   /* strip % char off start of very first ban */
1175                   if (strlen(parm) > 1) {
1176                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1177                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1178                   }
1179                   bcheck = 1;
1180                 } else {
1181                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1182                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1183                 }
1184               } else if (ctype == 2) {
1185                 if (echeck == 0) {
1186                    echeck = 1;
1187                 } else {
1188                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1189                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1190                 }
1191               }
1192             }
1193             next++;
1194             break;
1195         }
1196         default: members = argv[next++]; break;
1197       }
1198     }
1199
1200     in_timestamp = atoi(argv[2]);
1201     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1202         cNode->timestamp = in_timestamp;
1203         dict_remove(unbursted_channels, cNode->name);
1204         irc_burst(cNode);
1205     }
1206     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1207
1208     /* Burst channel members in now. */
1209     for (user = members, sep = *members, mode = 0; sep; user = end) {
1210         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1211         sep = *end++; end[-1] = 0;
1212         if (sep == ':') {
1213             mode = 0;
1214             while ((sep = *end++)) {
1215                 if (sep == 'o')
1216                     mode |= MODE_CHANOP;
1217                 else if (sep == 'h')
1218                     mode |= MODE_HALFOP;
1219                 else if (sep == 'v')
1220                     mode |= MODE_VOICE;
1221                 else if (isdigit(sep)) {
1222                     mode |= MODE_CHANOP;
1223                     while (isdigit(*end)) end++;
1224                 } else
1225                     break;
1226             }
1227             if (rel_age < 0)
1228                 mode = 0;
1229         }
1230         if (!(un = GetUserN(user))) {
1231             res = 0;
1232             continue;
1233         }
1234         if ((mNode = AddChannelUser(un, cNode)))
1235             mNode->modes = mode;
1236     }
1237
1238     return res;
1239 }
1240
1241 static CMD_FUNC(cmd_mode)
1242 {
1243     struct chanNode *cn;
1244     struct userNode *un;
1245     char *sethost; // sethost - reed/apples
1246     int i; // sethost - reed/apples
1247
1248     if (argc < 3)
1249         return 0;
1250     if (!IsChannelName(argv[1])) {
1251         un = GetUserH(argv[1]);
1252         if (!un) {
1253             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1254             return 0;
1255         }
1256         // sethost - reed/apples
1257         if (argc == 3)
1258         mod_usermode(un, argv[2]);
1259         else {
1260           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1261           i = 0;
1262           while((sethost[i++] = *argv[2]++));
1263           i--;
1264          sethost[i++] = ' ';
1265           while((sethost[i++] = *argv[3]++));
1266           mod_usermode(un, sethost); // sethost - reed/apples
1267         }
1268
1269         return 1;
1270     }
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         struct modeNode *mn;
1278         /* Update idle time for person setting the mode */
1279         if ((mn = GetUserMode(cn, un)))
1280             mn->idle_since = now;
1281     } else {
1282         /* If it came from a server, reset timestamp to re-sync. */
1283         cn->timestamp = atoi(argv[argc-1]);
1284     }
1285
1286     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1287 }
1288
1289 static CMD_FUNC(cmd_opmode)
1290 {
1291     struct chanNode *cn;
1292     struct userNode *un;
1293
1294     if (argc < 3)
1295         return 0;
1296
1297     if (!(cn = GetChannel(argv[1]))) {
1298         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1299         return 0;
1300     }
1301     if (!(un = GetUserH(origin))) {
1302         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1303         return 0;
1304     }
1305     if (!IsOper(un)) {
1306         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1307         return 0;
1308     }
1309
1310     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1311 }
1312
1313 static int clear_chanmode(struct chanNode *channel, const char *modes);
1314
1315 static CMD_FUNC(cmd_clearmode)
1316 {
1317     struct chanNode *cn;
1318     struct userNode *un;
1319
1320     if (argc < 3)
1321         return 0;
1322
1323     if (!(cn = GetChannel(argv[1]))) {
1324         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1325         return 0;
1326     }
1327     if (!(un = GetUserH(origin))) {
1328         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1329         return 0;
1330     }
1331     if (!IsOper(un)) {
1332         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1333         return 0;
1334     }
1335
1336     return clear_chanmode(cn, argv[2]);
1337 }
1338
1339 static CMD_FUNC(cmd_topic)
1340 {
1341     struct chanNode *cn;
1342     time_t chan_ts, topic_ts;
1343
1344     if (argc < 3)
1345         return 0;
1346     if (!(cn = GetChannel(argv[1]))) {
1347         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1348         return 0;
1349     }
1350     if (argc >= 5) {
1351         /* Looks like an Asuka style topic burst. */
1352         chan_ts = atoi(argv[2]);
1353         topic_ts = atoi(argv[3]);
1354     } else {
1355         chan_ts = cn->timestamp;
1356         topic_ts = now;
1357     }
1358     SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1359     cn->topic_time = topic_ts;
1360     return 1;
1361 }
1362
1363 static CMD_FUNC(cmd_num_topic)
1364 {
1365     struct chanNode *cn;
1366
1367     if (!argv[0])
1368         return 0; /* huh? */
1369     if (argv[2]) {
1370         cn = GetChannel(argv[2]);
1371         if (!cn) {
1372             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1373             return 0;
1374         }
1375     } else
1376         return 0;
1377
1378     switch (atoi(argv[0])) {
1379     case 331:
1380         cn->topic_time = 0;
1381         break;  /* no topic */
1382     case 332:
1383         if (argc < 4)
1384             return 0;
1385         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1386         break;
1387     case 333:
1388         if (argc < 5)
1389             return 0;
1390         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1391         cn->topic_time = atoi(argv[4]);
1392         break;
1393     default:
1394         return 0; /* should never happen */
1395     }
1396     return 1;
1397 }
1398
1399 static CMD_FUNC(cmd_num_gline)
1400 {
1401     if (argc < 6)
1402         return 0;
1403     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1404     return 1;
1405 }
1406
1407 static CMD_FUNC(cmd_quit)
1408 {
1409     struct userNode *user;
1410     if (argc < 2)
1411         return 0;
1412     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1413      * call DelUser unless we have the user in our grasp. */
1414     if ((user = GetUserH(origin)))
1415         DelUser(user, NULL, false, argv[1]);
1416     return 1;
1417 }
1418
1419 static CMD_FUNC(cmd_kill)
1420 {
1421     struct userNode *user;
1422     if (argc < 2)
1423         return 0;
1424     user = GetUserN(argv[1]);
1425     if (!user) {
1426         /* If we get a KILL for a non-existent user, it could be a
1427          * Ghost response to a KILL we sent out earlier.  So we only
1428          * whine if the target is local.
1429          */
1430         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1431             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1432         return 0;
1433     }
1434
1435     if (IsLocal(user) && IsService(user)) {
1436         /* TODO: rate limit this so silly things don't happen. */
1437         ReintroduceUser(user);
1438         return 1;
1439     }
1440
1441     DelUser(user, NULL, false, argv[2]);
1442     return 1;
1443 }
1444
1445 static CMD_FUNC(cmd_part)
1446 {
1447     struct userNode *user;
1448
1449     if (argc < 2)
1450         return 0;
1451     user = GetUserH(origin);
1452     if (!user)
1453         return 0;
1454     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1455     return 1;
1456 }
1457
1458 static CMD_FUNC(cmd_kick)
1459 {
1460     if (argc < 3)
1461         return 0;
1462     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1463     return 1;
1464 }
1465
1466 static CMD_FUNC(cmd_squit)
1467 {
1468     struct server *server;
1469
1470     if (argc < 4)
1471         return 0;
1472     if (!(server = GetServerH(argv[1])))
1473         return 0;
1474
1475     if (server == self->uplink) {
1476         /* Force a reconnect to the currently selected server. */
1477         cManager.uplink->tries = 0;
1478         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1479         close_socket();
1480         return 1;
1481     }
1482
1483     DelServer(server, 0, argv[3]);
1484     return 1;
1485 }
1486
1487 static CMD_FUNC(cmd_privmsg)
1488 {
1489     struct privmsg_desc pd;
1490     if (argc != 3)
1491         return 0;
1492     pd.user = GetUserH(origin);
1493     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1494         return 1;
1495     pd.is_notice = 0;
1496     pd.text = argv[2];
1497     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1498     return 1;
1499 }
1500
1501 static CMD_FUNC(cmd_notice)
1502 {
1503     struct privmsg_desc pd;
1504     if (argc != 3)
1505         return 0;
1506     pd.user = GetUserH(origin);
1507     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1508         return 1;
1509     pd.is_notice = 1;
1510     pd.text = argv[2];
1511     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1512     return 1;
1513 }
1514
1515 static CMD_FUNC(cmd_away)
1516 {
1517     struct userNode *uNode;
1518
1519     uNode = GetUserH(origin);
1520     if (!uNode)
1521         return 1;
1522     if (argc < 2)
1523         uNode->modes &= ~FLAGS_AWAY;
1524     else
1525         uNode->modes |= FLAGS_AWAY;
1526     return 1;
1527 }
1528
1529 static CMD_FUNC(cmd_gline)
1530 {
1531     if (argc < 3)
1532         return 0;
1533     if (argv[2][0] == '+') {
1534         if (argc < 5)
1535             return 0;
1536         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1537         return 1;
1538     } else if (argv[2][0] == '-') {
1539         gline_remove(argv[2]+1, 0);
1540         return 1;
1541     } else
1542         return 0;
1543 }
1544
1545 static CMD_FUNC(cmd_svsnick)
1546 {
1547     struct userNode *target, *dest;
1548     if ((argc < 4)
1549         || !(target = GetUserN(argv[1]))
1550         || !IsLocal(target)
1551         || (dest = GetUserH(argv[2])))
1552         return 0;
1553     NickChange(target, argv[2], 0);
1554     return 1;
1555 }
1556
1557 static oper_func_t *of_list;
1558 static unsigned int of_size = 0, of_used = 0;
1559
1560 void
1561 free_user(struct userNode *user)
1562 {
1563     free(user->nick);
1564     free(user);
1565 }
1566
1567 static void
1568 parse_cleanup(void)
1569 {
1570     unsigned int nn;
1571     free(of_list);
1572     free(privmsg_funcs);
1573     free(notice_funcs);
1574     free(mcf_list);
1575     dict_delete(irc_func_dict);
1576     for (nn=0; nn<dead_users.used; nn++)
1577         free_user(dead_users.list[nn]);
1578     userList_clean(&dead_users);
1579 }
1580
1581 static void
1582 p10_conf_reload(void) {
1583     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1584 }
1585
1586 static void
1587 remove_unbursted_channel(struct chanNode *cNode) {
1588     if (unbursted_channels)
1589         dict_remove(unbursted_channels, cNode->name);
1590 }
1591
1592 void
1593 init_parse(void)
1594 {
1595     const char *str, *desc;
1596     int numnick, usermask, max_users;
1597     char numer[COMBO_NUMERIC_LEN+1];
1598
1599     /* read config items */
1600     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1601     ping_freq = str ? ParseInterval(str) : 120;
1602     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1603     ping_timeout = str ? ParseInterval(str) : 30;
1604     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1605     force_n2k = str ? enabled_string(str) : 1;
1606     str = conf_get_data("server/numeric", RECDB_QSTRING);
1607     if (!str) {
1608         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1609         exit(1);
1610     }
1611     numnick = atoi(str);
1612     str = conf_get_data("server/max_users", RECDB_QSTRING);
1613     max_users = str ? atoi(str) : 4096;
1614     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1615     usermask--;
1616     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1617         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1618     else
1619         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1620
1621     str = conf_get_data("server/his_servername", RECDB_QSTRING);
1622     his_servername = str ? strdup(str) : NULL;
1623     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1624     his_servercomment = str ? strdup(str) : NULL;
1625
1626     str = conf_get_data("server/hostname", RECDB_QSTRING);
1627     desc = conf_get_data("server/description", RECDB_QSTRING);
1628     if (!str || !desc) {
1629         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1630         exit(1);
1631     }
1632     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1633     conf_register_reload(p10_conf_reload);
1634
1635     irc_func_dict = dict_new();
1636     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1637     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1638     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1639     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1640     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1641     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1642     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1643     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1644     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1645     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1646     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1647     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1648     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1649     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1650     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1651     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1652     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1653     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1654     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1655     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1656     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1657     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1658     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1659     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1660     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1661     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1662     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1663     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1664     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1665     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1666     dict_insert(irc_func_dict, CMD_PART, cmd_part);
1667     dict_insert(irc_func_dict, TOK_PART, cmd_part);
1668     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1669     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1670     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1671     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1672     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1673     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1674     dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1675     dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1676     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1677     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1678     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1679     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1680     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1681     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1682     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1683     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1684     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1685     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1686     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1687     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1688     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1689     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1690     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1691     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1692     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1693     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1694     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1695     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1696     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1697     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1698     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1699     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1700
1701     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1702      * Apparently to obliterate channels from any servers that think they
1703      * exist?
1704      */
1705     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1706     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1707     /* Ignore invites */
1708     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1709     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1710     /* DESYNCH is just informational, so ignore it */
1711     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1712     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1713     /* Ignore channel operator notices. */
1714     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1715     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1716     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1717     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1718     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1719     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1720     /* Ignore opers being silly. */
1721     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1722     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1723     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1724     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1725     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
1726     /* Ignore dnsbl exemptions */
1727     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
1728     dict_insert(irc_func_dict, TOK_MARK, cmd_dummy);
1729     /* Ignore privs */
1730     dict_insert(irc_func_dict, TOK_PRIVS, cmd_dummy);
1731     /* Ignore remote luser */
1732     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
1733     /* We have reliable clock!  Always!  Wraaa! */
1734     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1735     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1736     /* handle topics */
1737     dict_insert(irc_func_dict, "331", cmd_num_topic);
1738     dict_insert(irc_func_dict, "332", cmd_num_topic);
1739     dict_insert(irc_func_dict, "333", cmd_num_topic);
1740     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1741     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1742     /* ban list resetting */
1743     /* "stats g" responses */
1744     dict_insert(irc_func_dict, "247", cmd_num_gline);
1745     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1746     /* other numeric responses we might get */
1747     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1748     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1749     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1750     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
1751     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1752     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1753     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1754     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1755     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1756
1757     num_privmsg_funcs = 16;
1758     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1759     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1760
1761     num_notice_funcs = 16;
1762     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1763     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1764
1765     userList_init(&dead_users);
1766     reg_del_channel_func(remove_unbursted_channel);
1767     reg_exit_func(parse_cleanup);
1768 }
1769
1770 int
1771 parse_line(char *line, int recursive)
1772 {
1773     char *argv[MAXNUMPARAMS], *origin;
1774     int argc, cmd, res=0;
1775     cmd_func_t *func;
1776
1777     argc = split_line(line, true, MAXNUMPARAMS, argv);
1778     cmd = self->uplink || !argv[0][1] || !argv[0][2];
1779     if (argc > cmd) {
1780         if (cmd) {
1781             if (argv[0][0] == ':') {
1782                 origin = argv[0]+1;
1783             } else if (!argv[0][1] || !argv[0][2]) {
1784                 struct server *sNode = GetServerN(argv[0]);
1785                 origin = sNode ? sNode->name : 0;
1786             } else {
1787                 struct userNode *uNode = GetUserN(argv[0]);
1788                 origin = uNode ? uNode->nick : 0;
1789             }
1790         } else
1791             origin = 0;
1792         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1793             res = func(origin, argc-cmd, argv+cmd);
1794     }
1795     if (!res) {
1796         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1797     } else if (!recursive) {
1798         unsigned int i;
1799         for (i=0; i<dead_users.used; i++)
1800             free_user(dead_users.list[i]);
1801         dead_users.used = 0;
1802     }
1803     return res;
1804 }
1805
1806 static void
1807 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1808 {
1809     char *j, old;
1810     do {
1811         j = target_list;
1812         while (*j != 0 && *j != ',')
1813             j++;
1814         old = *j;
1815         *j = 0;
1816         if (IsChannelName(target_list)
1817             || (target_list[0] == '0' && target_list[1] == '\0')) {
1818             struct chanNode *chan = GetChannel(target_list);
1819             if (chan) {
1820                 if (cf)
1821                     cf(chan, data);
1822             } else {
1823                 if (nc)
1824                     nc(target_list, data);
1825             }
1826         } else {
1827             struct userNode *user;
1828             struct privmsg_desc *pd = data;
1829
1830             pd->is_qualified = 0;
1831             if (*target_list == '@') {
1832                 user = NULL;
1833             } else if (strchr(target_list, '@')) {
1834                 struct server *server;
1835
1836                 pd->is_qualified = 1;
1837                 user = GetUserH(strtok(target_list, "@"));
1838                 server = GetServerH(strtok(NULL, "@"));
1839
1840                 if (user && (user->uplink != server)) {
1841                     /* Don't attempt to index into any arrays
1842                        using a user's numeric on another server. */
1843                     user = NULL;
1844                 }
1845             } else {
1846                 user = GetUserN(target_list);
1847             }
1848
1849             if (user) {
1850                 if (uf)
1851                     uf(user, data);
1852             } else {
1853                 if (nu)
1854                     nu(target_list, data);
1855             }
1856         }
1857         target_list = j+1;
1858     } while (old == ',');
1859 }
1860
1861 static int
1862 get_local_numeric(void)
1863 {
1864     static unsigned int next_numeric = 0;
1865     if (self->clients > self->num_mask)
1866         return -1;
1867     while (self->users[next_numeric])
1868         if (++next_numeric > self->num_mask)
1869             next_numeric = 0;
1870     return next_numeric;
1871 }
1872
1873 static void
1874 make_numeric(struct server *svr, int local_num, char *outbuf)
1875 {
1876     int slen, llen;
1877
1878     if (force_n2k || svr->numeric[1]) {
1879         slen = 2;
1880         llen = 3;
1881     } else {
1882         slen = 1;
1883         llen = (local_num < 64*64) ? 2 : 3;
1884     }
1885     strncpy(outbuf, svr->numeric, slen);
1886     inttobase64(outbuf+slen, local_num, llen);
1887     outbuf[slen+llen] = 0;
1888 }
1889
1890 struct server *
1891 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1892 {
1893     struct server* sNode;
1894     int slen, mlen;
1895
1896     if ((sNode = GetServerN(numeric))) {
1897         /* This means we're trying to re-add an existant server.
1898          * To be safe, we should forget the previous incarnation.
1899          * (And all its linked servers.)
1900          *
1901          * It usually only happens in replays when the original
1902          * had a ping timeout and the replay didn't (because
1903          * replaying a ping timeout invariably gets things wrong).
1904          */
1905         DelServer(sNode, 0, NULL);
1906     }
1907
1908     switch (strlen(numeric)) {
1909     case 5: slen = 2; mlen = 3; break;
1910     case 4: slen = 1; mlen = 3; break;
1911     case 3: slen = 1; mlen = 2; break;
1912     default:
1913         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1914         return NULL;
1915     }
1916
1917     sNode = calloc(1, sizeof(*sNode));
1918     sNode->uplink = uplink;
1919     safestrncpy(sNode->name, name, sizeof(sNode->name));
1920     sNode->num_mask = base64toint(numeric+slen, mlen);
1921     sNode->hops = hops;
1922     sNode->boot = boot;
1923     sNode->link = link;
1924     strncpy(sNode->numeric, numeric, slen);
1925     safestrncpy(sNode->description, description, sizeof(sNode->description));
1926     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1927     serverList_init(&sNode->children);
1928     if (sNode->uplink) {
1929         /* uplink may be NULL if we're just building ourself */
1930         serverList_append(&sNode->uplink->children, sNode);
1931     }
1932     servers_num[base64toint(numeric, slen)] = sNode;
1933     dict_insert(servers, sNode->name, sNode);
1934     return sNode;
1935 }
1936
1937 void DelServer(struct server* serv, int announce, const char *message)
1938 {
1939     unsigned int i;
1940
1941     /* If we receive an ERROR command before the SERVER
1942      * command a NULL server can be passed */
1943     if (!serv)
1944         return;
1945
1946     /* Hrm, what's the right way to SQUIT some other server?
1947      * (This code is only to handle killing juped servers.) */
1948     if (announce && (serv->uplink == self) && (serv != self->uplink))
1949         irc_squit(serv, message, NULL);
1950
1951     /* must recursively remove servers linked to this one first */
1952     for (i=serv->children.used;i>0;)
1953         if (serv->children.list[--i] != self)
1954             DelServer(serv->children.list[i], false, NULL);
1955
1956     /* clean up server's user hash tables */
1957     for (i=0;i<=serv->num_mask;i++)
1958         if (serv->users[i])
1959             DelUser(serv->users[i], NULL, false, "server delinked");
1960
1961     /* delete server */
1962     if (serv->uplink)
1963         serverList_remove(&serv->uplink->children, serv);
1964     if (serv == self->uplink)
1965         self->uplink = NULL;
1966     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1967     dict_remove(servers, serv->name);
1968     serverList_clean(&serv->children);
1969     free(serv->users);
1970     free(serv);
1971 }
1972
1973 struct userNode *
1974 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
1975 {
1976     char numeric[COMBO_NUMERIC_LEN+1];
1977     int local_num = get_local_numeric();
1978     time_t timestamp = now;
1979     struct userNode *old_user = GetUserH(nick);
1980
1981     if (old_user) {
1982         if (IsLocal(old_user))
1983             return old_user;
1984         timestamp = old_user->timestamp - 1;
1985     }
1986     if (local_num == -1) {
1987         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1988         return 0;
1989     }
1990     if (!hostname)
1991         hostname = self->name;
1992     make_numeric(self, local_num, numeric);
1993     /* TODO: Make these modes part of the conf file */
1994     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
1995 }
1996
1997 struct userNode *
1998 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1999 {
2000     char numeric[COMBO_NUMERIC_LEN+1];
2001     int local_num = get_local_numeric();
2002     time_t timestamp = now;
2003     struct userNode *old_user = GetUserH(nick);
2004
2005     if (old_user) {
2006         if (IsLocal(old_user))
2007             return old_user;
2008         timestamp = old_user->timestamp - 1;
2009     }
2010     if (local_num == -1) {
2011         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2012         return 0;
2013     }
2014     make_numeric(self, local_num, numeric);
2015     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2016 }
2017
2018 int
2019 is_valid_nick(const char *nick) {
2020     unsigned int ii;
2021     /* IRC has some of The Most Fucked-Up ideas about character sets
2022      * in the world.. */
2023     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2024         return 0;
2025     for (ii = 0; nick[ii]; ++ii)
2026         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2027             return 0;
2028     if (strlen(nick) > nicklen)
2029         return 0;
2030     return 1;
2031 }
2032
2033 static struct userNode*
2034 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)
2035 {
2036     struct userNode *oldUser, *uNode;
2037     unsigned int n, ignore_user;
2038
2039     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2040         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2041         return NULL;
2042     }
2043
2044     if (!uplink) {
2045         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2046         return NULL;
2047     }
2048
2049     if (uplink != GetServerN(numeric)) {
2050         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2051         return NULL;
2052     }
2053
2054     if (!is_valid_nick(nick)) {
2055         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2056         return NULL;
2057     }
2058
2059     ignore_user = 0;
2060     if ((oldUser = GetUserH(nick))) {
2061         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2062             /* The service should collide the new user off. */
2063             oldUser->timestamp = timestamp - 1;
2064             irc_user(oldUser);
2065         }
2066         if (oldUser->timestamp > timestamp) {
2067             /* "Old" user is really newer; remove them */
2068             DelUser(oldUser, 0, 1, "Overruled by older nick");
2069         } else {
2070             /* User being added is too new; do not add them to
2071              * clients, but do add them to the server's list, since it
2072              * will send a KILL and QUIT soon. */
2073             ignore_user = 1;
2074         }
2075     }
2076
2077     /* create new usernode and set all values */
2078     uNode = calloc(1, sizeof(*uNode));
2079     uNode->nick = strdup(nick);
2080     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2081     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2082     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2083     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2084     uNode->ip.s_addr = htonl(base64toint(realip, 6));
2085     uNode->timestamp = timestamp;
2086     modeList_init(&uNode->channels);
2087     uNode->uplink = uplink;
2088     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2089         uNode->uplink->max_clients = uNode->uplink->clients;
2090     }
2091     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2092     uNode->uplink->users[uNode->num_local] = uNode;
2093     mod_usermode(uNode, modes);
2094     if (ignore_user)
2095         return uNode;
2096
2097     dict_insert(clients, uNode->nick, uNode);
2098     if (dict_size(clients) > max_clients) {
2099         max_clients = dict_size(clients);
2100         max_clients_time = now;
2101     }
2102     if (IsLocal(uNode))
2103         irc_user(uNode);
2104     for (n=0; n<nuf_used; n++)
2105         if (nuf_list[n](uNode))
2106             break;
2107
2108     if ((uNode->loc == 1) && (uNode->handle_info))
2109         send_func_list(uNode);
2110
2111     return uNode;
2112 }
2113
2114 /* removes user from it's server's hash table and nick hash table */
2115 void
2116 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2117 {
2118     unsigned int n;
2119
2120     verify(user);
2121
2122     /* mark them as dead, in case anybody cares */
2123     user->dead = 1;
2124
2125     /* remove pending adduser commands */
2126     wipe_adduser_pending(NULL, user);
2127
2128     /* remove user from all channels */
2129     while (user->channels.used > 0)
2130         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2131
2132     /* Call these in reverse order so ChanServ can update presence
2133        information before NickServ nukes the handle_info. */
2134     for (n = duf_used; n > 0; )
2135         duf_list[--n](user, killer, why);
2136
2137     user->uplink->clients--;
2138     user->uplink->users[user->num_local] = NULL;
2139     if (IsOper(user))
2140         userList_remove(&curr_opers, user);
2141     /* remove from global dictionary, but not if after a collide */
2142     if (user == dict_find(clients, user->nick, NULL))
2143         dict_remove(clients, user->nick);
2144
2145     if (IsInvisible(user))
2146         invis_clients--;
2147
2148     if (announce) {
2149         if (IsLocal(user))
2150             irc_quit(user, why);
2151         else
2152             irc_kill(killer, user, why);
2153     }
2154
2155     modeList_clean(&user->channels);
2156     /* We don't free them, in case we try to privmsg them or something
2157      * (like when a stupid oper kills themself).  We just put them onto
2158      * a list of clients that get freed after processing each line.
2159      */
2160     if (dead_users.size)
2161         userList_append(&dead_users, user);
2162     else
2163         free_user(user);
2164 }
2165
2166 static void call_oper_funcs(struct userNode *user);
2167
2168 void mod_usermode(struct userNode *user, const char *mode_change) {
2169     int add = 1;
2170     const char *word = mode_change;
2171
2172     if (!user || !mode_change)
2173         return;
2174     while (*word != ' ' && *word) word++;
2175     while (*word == ' ') word++;
2176     while (1) {
2177 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2178         switch (*mode_change++) {
2179         case 0: case ' ': return;
2180         case '+': add = 1; break;
2181         case '-': add = 0; break;
2182         case 'o':
2183             if (add) {
2184                 if(!IsOper(user)) { /* Dont re-oper an oper */
2185                     userList_append(&curr_opers, user);
2186                     call_oper_funcs(user);
2187                 }
2188             } else {
2189                 userList_remove(&curr_opers, user);
2190             }
2191             do_user_mode(FLAGS_OPER);
2192             break;
2193         case 'O': do_user_mode(FLAGS_LOCOP); break;
2194         case 'i': do_user_mode(FLAGS_INVISIBLE);
2195             if (add)
2196                 invis_clients++;
2197             else
2198                 invis_clients--;
2199             break;
2200         case 'w': do_user_mode(FLAGS_WALLOP); break;
2201         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2202         case 'd': do_user_mode(FLAGS_DEAF); break;
2203         case 'k': do_user_mode(FLAGS_SERVICE); break;
2204         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2205         // sethost - reed/apples
2206         // case 'h': do_user_mode(FLAGS_HELPER); break;
2207         // I check if there's an 'h' in the first part, and if there,
2208         // then everything after the space becomes their new host.
2209         case 'h': do_user_mode(FLAGS_SETHOST);
2210             if (*word) {
2211                 char sethost[MAXLEN];
2212                 unsigned int ii;
2213                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2214                     sethost[ii++] = *word++;
2215                 sethost[ii] = 0;
2216                 while (*word == ' ')
2217                     word++;
2218                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2219             }
2220             break;
2221         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2222         case 'r':
2223             if (*word) {
2224                 char tag[MAXLEN];
2225                 unsigned int ii;
2226                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2227                     tag[ii++] = *word++;
2228                 tag[ii] = 0;
2229                 while (*word == ' ')
2230                     word++;
2231                 call_account_func(user, tag);
2232             }
2233             break;
2234         case 'f':
2235             if (*word) {
2236                 char host[MAXLEN];
2237                 unsigned int ii;
2238                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2239                     host[ii++] = *word++;
2240                 host[ii] = 0;
2241                 while (*word == ' ')
2242                     word++;
2243                 assign_fakehost(user, host, 0);
2244             }
2245             break;
2246         }
2247 #undef do_user_mode
2248     }
2249 }
2250
2251 struct mod_chanmode *
2252 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2253 {
2254     struct mod_chanmode *change;
2255     unsigned int ii, in_arg, ch_arg, add;
2256
2257     if (argc == 0)
2258         return NULL;
2259     if (!(change = mod_chanmode_alloc(argc - 1)))
2260         return NULL;
2261
2262     for (ii = ch_arg = 0, in_arg = add = 1;
2263          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2264          ++ii) {
2265         switch (modes[0][ii]) {
2266         case '+':
2267             add = 1;
2268             break;
2269         case '-':
2270             add = 0;
2271             break;
2272 #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)
2273         case 'C': do_chan_mode(MODE_NOCTCPS); break;
2274         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2275         case 'c': do_chan_mode(MODE_NOCOLORS); break;
2276         case 'i': do_chan_mode(MODE_INVITEONLY); break;
2277         case 'm': do_chan_mode(MODE_MODERATED); break;
2278         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2279         case 'p': do_chan_mode(MODE_PRIVATE); break;
2280         case 'r': do_chan_mode(MODE_REGONLY); break;
2281         case 's': do_chan_mode(MODE_SECRET); break;
2282         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2283         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2284         case 'M': do_chan_mode(MODE_MODUNREG); break;
2285         case 'N': do_chan_mode(MODE_NONOTICE); break;
2286         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2287         case 'T': do_chan_mode(MODE_NOAMSG); break;
2288         case 'O': do_chan_mode(MODE_OPERSONLY); break;
2289         case 'Z': do_chan_mode(MODE_SSLONLY); break;
2290         case 'L': do_chan_mode(MODE_HIDEMODE); break;
2291         case 'z':
2292           if (!(flags & MCP_REGISTERED)) {
2293            do_chan_mode(MODE_REGISTERED);
2294           } else {
2295            mod_chanmode_free(change);
2296            return NULL;
2297           }
2298           break;
2299 #undef do_chan_mode
2300         case 'l':
2301             if (add) {
2302                 if (in_arg >= argc)
2303                     goto error;
2304                 change->modes_set |= MODE_LIMIT;
2305                 change->new_limit = atoi(modes[in_arg++]);
2306             } else {
2307                 change->modes_set &= ~MODE_LIMIT;
2308                 change->modes_clear |= MODE_LIMIT;
2309             }
2310             break;
2311         case 'k':
2312             if (add) {
2313                 if (in_arg >= argc)
2314                     goto error;
2315                 change->modes_set |= MODE_KEY;
2316                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2317             } else {
2318                 change->modes_clear |= MODE_KEY;
2319                 if (!(flags & MCP_KEY_FREE)) {
2320                     if (in_arg >= argc)
2321                         goto error;
2322                     in_arg++;
2323                 }
2324             }
2325             break;
2326         case 'b':
2327             if (!(flags & MCP_ALLOW_OVB))
2328                 goto error;
2329             if (in_arg >= argc)
2330                 goto error;
2331             change->args[ch_arg].mode = MODE_BAN;
2332             if (!add)
2333                 change->args[ch_arg].mode |= MODE_REMOVE;
2334             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2335             break;
2336         case 'e':
2337             if (!(flags & MCP_ALLOW_OVB))
2338                 goto error;
2339             if (in_arg >= argc)
2340                 goto error;
2341             change->args[ch_arg].mode = MODE_EXEMPT;
2342             if (!add)
2343                 change->args[ch_arg].mode |= MODE_REMOVE;
2344             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2345             break;
2346         case 'o': case 'h': case 'v':
2347         {
2348             struct userNode *victim;
2349             if (!(flags & MCP_ALLOW_OVB))
2350                 goto error;
2351             if (in_arg >= argc)
2352                 goto error;
2353
2354             if (modes[0][ii] == 'o')
2355                 change->args[ch_arg].mode = MODE_CHANOP;
2356             else if (modes[0][ii] == 'h')
2357                 change->args[ch_arg].mode = MODE_HALFOP;
2358             else if (modes[0][ii] == 'v')
2359                 change->args[ch_arg].mode = MODE_VOICE;
2360
2361             if (!add)
2362                 change->args[ch_arg].mode |= MODE_REMOVE;
2363             if (flags & MCP_FROM_SERVER)
2364                 victim = GetUserN(modes[in_arg++]);
2365             else
2366                 victim = GetUserH(modes[in_arg++]);
2367             if (!victim)
2368                 continue;
2369             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2370                 ch_arg++;
2371             break;
2372         }
2373         default:
2374             if (!(flags & MCP_FROM_SERVER))
2375                 goto error;
2376             break;
2377         }
2378     }
2379     change->argc = ch_arg; /* in case any turned out to be ignored */
2380     if (change->modes_set & MODE_SECRET) {
2381         change->modes_set &= ~(MODE_PRIVATE);
2382         change->modes_clear |= MODE_PRIVATE;
2383     } else if (change->modes_set & MODE_PRIVATE) {
2384         change->modes_set &= ~(MODE_SECRET);
2385         change->modes_clear |= MODE_SECRET;
2386     }
2387     return change;
2388   error:
2389     mod_chanmode_free(change);
2390     return NULL;
2391 }
2392
2393 struct chanmode_buffer {
2394     char modes[MAXLEN];
2395     char args[MAXLEN];
2396     struct chanNode *channel;
2397     struct userNode *actor;
2398     unsigned int modes_used;
2399     unsigned int args_used;
2400     size_t chname_len;
2401     unsigned int is_add : 1;
2402     unsigned int is_chanop : 1;
2403 };
2404
2405 static void
2406 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2407 {
2408     size_t arg_len = strlen(arg);
2409     if (buf->modes_used > (MAXMODEPARAMS) ||
2410         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2411         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2412         buf->modes[buf->modes_used + buf->args_used] = '\0';
2413         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2414         buf->modes[0] = buf->is_add ? '+' : '-';
2415         buf->modes_used = 1;
2416         buf->args_used = 0;
2417     }
2418     buf->modes[buf->modes_used++] = ch;
2419     buf->args[buf->args_used++] = ' ';
2420     memcpy(buf->args + buf->args_used, arg, arg_len);
2421     buf->args_used += arg_len;
2422 }
2423
2424 void
2425 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2426 {
2427     struct chanmode_buffer chbuf;
2428     unsigned int arg;
2429     struct modeNode *mn;
2430     char int_buff[32], mode = '\0';
2431
2432     assert(change->argc <= change->alloc_argc);
2433     memset(&chbuf, 0, sizeof(chbuf));
2434     chbuf.channel = channel;
2435     chbuf.actor = who;
2436     chbuf.chname_len = strlen(channel->name);
2437
2438     mn = GetUserMode(channel, who);
2439     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2440         chbuf.is_chanop = 1;
2441
2442     /* First remove modes */
2443     chbuf.is_add = 0;
2444     if (change->modes_clear) {
2445         if (mode != '-')
2446             chbuf.modes[chbuf.modes_used++] = mode = '-';
2447 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2448         DO_MODE_CHAR(PRIVATE, 'p');
2449         DO_MODE_CHAR(SECRET, 's');
2450         DO_MODE_CHAR(MODERATED, 'm');
2451         DO_MODE_CHAR(TOPICLIMIT, 't');
2452         DO_MODE_CHAR(INVITEONLY, 'i');
2453         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2454         DO_MODE_CHAR(LIMIT, 'l');
2455         DO_MODE_CHAR(DELAYJOINS, 'D');
2456         DO_MODE_CHAR(REGONLY, 'r');
2457         DO_MODE_CHAR(NOCOLORS, 'c');
2458         DO_MODE_CHAR(NOCTCPS, 'C');
2459         DO_MODE_CHAR(STRIPCOLOR, 'S');
2460         DO_MODE_CHAR(MODUNREG, 'M');
2461         DO_MODE_CHAR(NONOTICE, 'N');
2462         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2463         DO_MODE_CHAR(NOAMSG, 'T');
2464         DO_MODE_CHAR(OPERSONLY, 'O');
2465         DO_MODE_CHAR(REGISTERED, 'z');
2466         DO_MODE_CHAR(SSLONLY, 'Z');
2467         DO_MODE_CHAR(HIDEMODE, 'L');
2468 #undef DO_MODE_CHAR
2469         if (change->modes_clear & channel->modes & MODE_KEY)
2470             mod_chanmode_append(&chbuf, 'k', channel->key);
2471     }
2472     for (arg = 0; arg < change->argc; ++arg) {
2473         if (!(change->args[arg].mode & MODE_REMOVE))
2474             continue;
2475         if (mode != '-')
2476             chbuf.modes[chbuf.modes_used++] = mode = '-';
2477         switch (change->args[arg].mode & ~MODE_REMOVE) {
2478         case MODE_BAN:
2479             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2480             break;
2481         case MODE_EXEMPT:
2482             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2483             break;
2484         default:
2485             if (change->args[arg].mode & MODE_CHANOP)
2486                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2487             if (change->args[arg].mode & MODE_HALFOP)
2488                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2489             if (change->args[arg].mode & MODE_VOICE)
2490                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2491             break;
2492         }
2493     }
2494
2495     /* Then set them */
2496     chbuf.is_add = 1;
2497     if (change->modes_set) {
2498         if (mode != '+')
2499             chbuf.modes[chbuf.modes_used++] = mode = '+';
2500 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2501         DO_MODE_CHAR(PRIVATE, 'p');
2502         DO_MODE_CHAR(SECRET, 's');
2503         DO_MODE_CHAR(MODERATED, 'm');
2504         DO_MODE_CHAR(TOPICLIMIT, 't');
2505         DO_MODE_CHAR(INVITEONLY, 'i');
2506         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2507         DO_MODE_CHAR(DELAYJOINS, 'D');
2508         DO_MODE_CHAR(REGONLY, 'r');
2509         DO_MODE_CHAR(NOCOLORS, 'c');
2510         DO_MODE_CHAR(NOCTCPS, 'C');
2511         DO_MODE_CHAR(STRIPCOLOR, 'S');
2512         DO_MODE_CHAR(MODUNREG, 'M');
2513         DO_MODE_CHAR(NONOTICE, 'N');
2514         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2515         DO_MODE_CHAR(NOAMSG, 'T');
2516         DO_MODE_CHAR(OPERSONLY, 'O');
2517         DO_MODE_CHAR(REGISTERED, 'z');
2518         DO_MODE_CHAR(SSLONLY, 'Z');
2519         DO_MODE_CHAR(HIDEMODE, 'L');
2520 #undef DO_MODE_CHAR
2521         if(change->modes_set & MODE_KEY)
2522             mod_chanmode_append(&chbuf, 'k', change->new_key);
2523         if(change->modes_set & MODE_LIMIT) {
2524             sprintf(int_buff, "%d", change->new_limit);
2525             mod_chanmode_append(&chbuf, 'l', int_buff);
2526         }
2527     }
2528     for (arg = 0; arg < change->argc; ++arg) {
2529         if (change->args[arg].mode & MODE_REMOVE)
2530             continue;
2531         if (mode != '+')
2532             chbuf.modes[chbuf.modes_used++] = mode = '+';
2533         switch (change->args[arg].mode) {
2534         case MODE_BAN:
2535             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2536             break;
2537         case MODE_EXEMPT:
2538             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2539             break;
2540         default:
2541             if (change->args[arg].mode & MODE_CHANOP)
2542                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2543             if (change->args[arg].mode & MODE_HALFOP)
2544                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2545             if (change->args[arg].mode & MODE_VOICE)
2546                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2547             break;
2548         }
2549     }
2550
2551     /* Flush the buffer and apply changes locally */
2552     if (chbuf.modes_used > 0) {
2553         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2554         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2555         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2556     }
2557     mod_chanmode_apply(who, channel, change);
2558 }
2559
2560 char *
2561 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2562 {
2563     unsigned int used = 0;
2564     assert(change->argc <= change->alloc_argc);
2565     if (change->modes_clear) {
2566         outbuff[used++] = '-';
2567 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2568         DO_MODE_CHAR(PRIVATE, 'p');
2569         DO_MODE_CHAR(SECRET, 's');
2570         DO_MODE_CHAR(MODERATED, 'm');
2571         DO_MODE_CHAR(TOPICLIMIT, 't');
2572         DO_MODE_CHAR(INVITEONLY, 'i');
2573         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2574         DO_MODE_CHAR(LIMIT, 'l');
2575         DO_MODE_CHAR(KEY, 'k');
2576         DO_MODE_CHAR(DELAYJOINS, 'D');
2577         DO_MODE_CHAR(REGONLY, 'r');
2578         DO_MODE_CHAR(NOCOLORS, 'c');
2579         DO_MODE_CHAR(NOCTCPS, 'C');
2580         DO_MODE_CHAR(STRIPCOLOR, 'S');
2581         DO_MODE_CHAR(MODUNREG, 'M');
2582         DO_MODE_CHAR(NONOTICE, 'N');
2583         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2584         DO_MODE_CHAR(NOAMSG, 'T');
2585         DO_MODE_CHAR(OPERSONLY, 'O');
2586         DO_MODE_CHAR(REGISTERED, 'z');
2587         DO_MODE_CHAR(SSLONLY, 'Z');
2588         DO_MODE_CHAR(HIDEMODE, 'L');
2589 #undef DO_MODE_CHAR
2590     }
2591     if (change->modes_set) {
2592         outbuff[used++] = '+';
2593 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2594         DO_MODE_CHAR(PRIVATE, 'p');
2595         DO_MODE_CHAR(SECRET, 's');
2596         DO_MODE_CHAR(MODERATED, 'm');
2597         DO_MODE_CHAR(TOPICLIMIT, 't');
2598         DO_MODE_CHAR(INVITEONLY, 'i');
2599         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2600         DO_MODE_CHAR(DELAYJOINS, 'D');
2601         DO_MODE_CHAR(REGONLY, 'r');
2602         DO_MODE_CHAR(NOCOLORS, 'c');
2603         DO_MODE_CHAR(NOCTCPS, 'C');
2604         DO_MODE_CHAR(STRIPCOLOR, 'S');
2605         DO_MODE_CHAR(MODUNREG, 'M');
2606         DO_MODE_CHAR(NONOTICE, 'N');
2607         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2608         DO_MODE_CHAR(NOAMSG, 'T');
2609         DO_MODE_CHAR(OPERSONLY, 'O');
2610         DO_MODE_CHAR(REGISTERED, 'z');
2611         DO_MODE_CHAR(SSLONLY, 'Z');
2612         DO_MODE_CHAR(HIDEMODE, 'L');
2613 #undef DO_MODE_CHAR
2614         switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2615         case MODE_KEY|MODE_LIMIT:
2616             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2617             break;
2618         case MODE_KEY:
2619             used += sprintf(outbuff+used, "k %s", change->new_key);
2620             break;
2621         case MODE_LIMIT:
2622             used += sprintf(outbuff+used, "l %d", change->new_limit);
2623             break;
2624         }
2625     }
2626     outbuff[used] = 0;
2627     return outbuff;
2628 }
2629
2630 static int
2631 clear_chanmode(struct chanNode *channel, const char *modes)
2632 {
2633     unsigned int remove;
2634
2635     for (remove = 0; *modes; modes++) {
2636         switch (*modes) {
2637         case 'o': remove |= MODE_CHANOP; break;
2638         case 'h': remove |= MODE_HALFOP; break;
2639         case 'v': remove |= MODE_VOICE; break;
2640         case 'p': remove |= MODE_PRIVATE; break;
2641         case 's': remove |= MODE_SECRET; break;
2642         case 'm': remove |= MODE_MODERATED; break;
2643         case 't': remove |= MODE_TOPICLIMIT; break;
2644         case 'i': remove |= MODE_INVITEONLY; break;
2645         case 'n': remove |= MODE_NOPRIVMSGS; break;
2646         case 'k':
2647             remove |= MODE_KEY;
2648             channel->key[0] = '\0';
2649             break;
2650         case 'l':
2651             remove |= MODE_LIMIT;
2652             channel->limit = 0;
2653             break;
2654         case 'b': remove |= MODE_BAN; break;
2655         case 'e': remove |= MODE_EXEMPT; break;
2656         case 'D': remove |= MODE_DELAYJOINS; break;
2657         case 'r': remove |= MODE_REGONLY; break;
2658         case 'c': remove |= MODE_NOCOLORS; break;
2659         case 'C': remove |= MODE_NOCTCPS; break;
2660         case 'S': remove |= MODE_STRIPCOLOR; break;
2661         case 'M': remove |= MODE_MODUNREG; break;
2662         case 'N': remove |= MODE_NONOTICE; break;
2663         case 'Q': remove |= MODE_NOQUITMSGS; break;
2664         case 'T': remove |= MODE_NOAMSG; break;
2665         case 'O': remove |= MODE_OPERSONLY; break;
2666         case 'z': remove |= MODE_REGISTERED; break;
2667         case 'Z': remove |= MODE_SSLONLY; break;
2668         case 'L': remove |= MODE_HIDEMODE; break;
2669         }
2670     }
2671
2672     if (!remove)
2673         return 1;
2674
2675     /* Remove simple modes. */
2676     channel->modes &= ~remove;
2677
2678     /* If removing bans, kill 'em all. */
2679     if ((remove & MODE_BAN) && channel->banlist.used) {
2680         unsigned int i;
2681         for (i=0; i<channel->banlist.used; i++)
2682             free(channel->banlist.list[i]);
2683         channel->banlist.used = 0;
2684     }
2685
2686     /* If removing exempts, kill 'em all. */
2687     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2688         unsigned int i;
2689         for (i=0; i<channel->exemptlist.used; i++)
2690             free(channel->exemptlist.list[i]);
2691         channel->exemptlist.used = 0;
2692     }
2693
2694     /* Remove member modes. */
2695     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2696         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2697         unsigned int i;
2698
2699         for (i = 0; i < channel->members.used; i++)
2700             channel->members.list[i]->modes &= mask;
2701     }
2702
2703     return 1;
2704 }
2705
2706 void
2707 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2708 {
2709     unsigned int numeric = user->num_local;
2710     if (numeric >= num_privmsg_funcs) {
2711         int newnum = numeric + 8;
2712         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2713         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2714         num_privmsg_funcs = newnum;
2715     }
2716     if (privmsg_funcs[numeric])
2717         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2718     privmsg_funcs[numeric] = handler;
2719 }
2720
2721 void
2722 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2723 {
2724     unsigned int x;
2725
2726     if (!user || handler)
2727       return; /* this really only works with users */
2728
2729     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2730
2731     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2732        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2733
2734     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2735     num_privmsg_funcs--;
2736 }
2737
2738
2739 void
2740 reg_notice_func(struct userNode *user, privmsg_func_t handler)
2741 {
2742     unsigned int numeric = user->num_local;
2743     if (numeric >= num_notice_funcs) {
2744         int newnum = numeric + 8;
2745         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2746         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2747         num_notice_funcs = newnum;
2748     }
2749     if (notice_funcs[numeric])
2750         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2751     notice_funcs[numeric] = handler;
2752 }
2753
2754 void
2755 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2756 {
2757     unsigned int x;
2758
2759     if (!user || handler)
2760           return; /* this really only works with users */
2761
2762     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2763
2764     for (x = user->num_local+1; x < num_notice_funcs; x++)
2765        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2766
2767     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2768     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2769     num_notice_funcs--;
2770 }
2771
2772 void
2773 reg_oper_func(oper_func_t handler)
2774 {
2775     if (of_used == of_size) {
2776         if (of_size) {
2777             of_size <<= 1;
2778             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2779         } else {
2780             of_size = 8;
2781             of_list = malloc(of_size*sizeof(oper_func_t));
2782         }
2783     }
2784     of_list[of_used++] = handler;
2785 }
2786
2787 static void
2788 call_oper_funcs(struct userNode *user)
2789 {
2790     unsigned int n;
2791     if (IsLocal(user))
2792         return;
2793     for (n=0; n<of_used; n++)
2794         of_list[n](user);
2795 }
2796
2797 static void
2798 send_burst(void)
2799 {
2800     unsigned int i, hop, max_hop=1;
2801     dict_iterator_t it;
2802
2803     /* burst (juped) servers, closest first (except self, which is sent already) */
2804     for (i=0; i<ArrayLength(servers_num); i++)
2805         if (servers_num[i] && servers_num[i]->hops > max_hop)
2806             max_hop = servers_num[i]->hops;
2807     for (hop=1; hop<=max_hop; hop++) {
2808         for (i=0;i<ArrayLength(servers_num);i++) {
2809             if (servers_num[i]
2810                 && (servers_num[i]->hops == hop)
2811                 && (servers_num[i] != self->uplink))
2812                 irc_server(servers_num[i]);
2813         }
2814     }
2815
2816     /* burst local nicks */
2817     for (i=0; i<=self->num_mask; i++)
2818         if (self->users[i])
2819             irc_user(self->users[i]);
2820
2821     /* build dict of unbursted channel names (just copy existing channels) */
2822     unbursted_channels = dict_new();
2823     for (it = dict_first(channels); it; it = iter_next(it))
2824         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2825 }