src/proto-p10.c

   1 /* proto-p10.c - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * srvx is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "chanserv.h"
  22 #include "proto-common.c"
  23
  24 /* Full commands. */
  25 #define CMD_ACCOUNT             "ACCOUNT"
  26 #define CMD_ADMIN               "ADMIN"
  27 #define CMD_ASLL                "ASLL"
  28 #define CMD_AWAY                "AWAY"
  29 #define CMD_BURST               "BURST"
  30 #define CMD_CLEARMODE           "CLEARMODE"
  31 #define CMD_CLOSE               "CLOSE"
  32 #define CMD_CNOTICE             "CNOTICE"
  33 #define CMD_CONNECT             "CONNECT"
  34 #define CMD_CPRIVMSG            "CPRIVMSG"
  35 #define CMD_CREATE              "CREATE"
  36 #define CMD_DESTRUCT            "DESTRUCT"
  37 #define CMD_DESYNCH             "DESYNCH"
  38 #define CMD_DIE                 "DIE"
  39 #define CMD_DNS                 "DNS"
  40 #define CMD_EOB                 "END_OF_BURST"
  41 #define CMD_EOB_ACK             "EOB_ACK"
  42 #define CMD_ERROR               "ERROR"
  43 #define CMD_FAKEHOST            "FAKE"
  44 #define CMD_GET                 "GET"
  45 #define CMD_GLINE               "GLINE"
  46 #define CMD_HASH                "HASH"
  47 #define CMD_HELP                "HELP"
  48 #define CMD_INFO                "INFO"
  49 #define CMD_INVITE              "INVITE"
  50 #define CMD_ISON                "ISON"
  51 #define CMD_JOIN                "JOIN"
  52 #define CMD_JUPE                "JUPE"
  53 #define CMD_KICK                "KICK"
  54 #define CMD_KILL                "KILL"
  55 #define CMD_LINKS               "LINKS"
  56 #define CMD_LIST                "LIST"
  57 #define CMD_LUSERS              "LUSERS"
  58 #define CMD_MAP                 "MAP"
  59 #define CMD_MARK                "MARK"
  60 #define CMD_MODE                "MODE"
  61 #define CMD_MOTD                "MOTD"
  62 #define CMD_NAMES               "NAMES"
  63 #define CMD_NICK                "NICK"
  64 #define CMD_NOTICE              "NOTICE"
  65 #define CMD_OPER                "OPER"
  66 #define CMD_OPMODE              "OPMODE"
  67 #define CMD_PART                "PART"
  68 #define CMD_PASS                "PASS"
  69 #define CMD_PING                "PING"
  70 #define CMD_PONG                "PONG"
  71 #define CMD_POST                "POST"
  72 #define CMD_PRIVMSG             "PRIVMSG"
  73 #define CMD_PRIVS               "PRIVS"
  74 #define CMD_PROTO               "PROTO"
  75 #define CMD_QUIT                "QUIT"
  76 #define CMD_REHASH              "REHASH"
  77 #define CMD_RESET               "RESET"
  78 #define CMD_RESTART             "RESTART"
  79 #define CMD_RPING               "RPING"
  80 #define CMD_RPONG               "RPONG"
  81 #define CMD_SERVER              "SERVER"
  82 #define CMD_SERVLIST            "SERVLIST"
  83 #define CMD_SERVSET             "SERVSET"
  84 #define CMD_SET                 "SET"
  85 #define CMD_SETTIME             "SETTIME"
  86 #define CMD_SILENCE             "SILENCE"
  87 #define CMD_SQUERY              "SQUERY"
  88 #define CMD_SQUIT               "SQUIT"
  89 #define CMD_STATS               "STATS"
  90 #define CMD_SVSNICK             "SVSNICK"
  91 #define CMD_TIME                "TIME"
  92 #define CMD_TOPIC               "TOPIC"
  93 #define CMD_TRACE               "TRACE"
  94 #define CMD_UPING               "UPING"
  95 #define CMD_USER                "USER"
  96 #define CMD_USERHOST            "USERHOST"
  97 #define CMD_USERIP              "USERIP"
  98 #define CMD_VERSION             "VERSION"
  99 #define CMD_WALLCHOPS           "WALLCHOPS"
 100 #define CMD_WALLOPS             "WALLOPS"
 101 #define CMD_WALLHOPS            "WALLHOPS"
 102 #define CMD_WALLUSERS           "WALLUSERS"
 103 #define CMD_WALLVOICES          "WALLVOICES"
 104 #define CMD_WALLHOPS            "WALLHOPS"
 105 #define CMD_WHO                 "WHO"
 106 #define CMD_WHOIS               "WHOIS"
 107 #define CMD_WHOWAS              "WHOWAS"
 108
 109 /* Tokenized commands. */
 110 #define TOK_ACCOUNT             "AC"
 111 #define TOK_ADMIN               "AD"
 112 #define TOK_ASLL                "LL"
 113 #define TOK_AWAY                "A"
 114 #define TOK_BURST               "B"
 115 #define TOK_CLEARMODE           "CM"
 116 #define TOK_CLOSE               "CLOSE"
 117 #define TOK_CNOTICE             "CN"
 118 #define TOK_CONNECT             "CO"
 119 #define TOK_CPRIVMSG            "CP"
 120 #define TOK_CREATE              "C"
 121 #define TOK_DESTRUCT            "DE"
 122 #define TOK_DESYNCH             "DS"
 123 #define TOK_DIE                 "DIE"
 124 #define TOK_DNS                 "DNS"
 125 #define TOK_EOB                 "EB"
 126 #define TOK_EOB_ACK             "EA"
 127 #define TOK_ERROR               "Y"
 128 #define TOK_EXEMPT              "EX"
 129 #define TOK_FAKEHOST            "FA"
 130 #define TOK_GET                 "GET"
 131 #define TOK_GLINE               "GL"
 132 #define TOK_HASH                "HASH"
 133 #define TOK_HELP                "HELP"
 134 #define TOK_INFO                "F"
 135 #define TOK_INVITE              "I"
 136 #define TOK_ISON                "ISON"
 137 #define TOK_JOIN                "J"
 138 #define TOK_JUPE                "JU"
 139 #define TOK_KICK                "K"
 140 #define TOK_KILL                "D"
 141 #define TOK_LINKS               "LI"
 142 #define TOK_LIST                "LIST"
 143 #define TOK_LUSERS              "LU"
 144 #define TOK_MAP                 "MAP"
 145 #define TOK_MARK                "MK"
 146 #define TOK_MODE                "M"
 147 #define TOK_MOTD                "MO"
 148 #define TOK_NAMES               "E"
 149 #define TOK_NICK                "N"
 150 #define TOK_NOTICE              "O"
 151 #define TOK_OPER                "OPER"
 152 #define TOK_OPMODE              "OM"
 153 #define TOK_PART                "L"
 154 #define TOK_PASS                "PA"
 155 #define TOK_PING                "G"
 156 #define TOK_PONG                "Z"
 157 #define TOK_POST                "POST"
 158 #define TOK_PRIVMSG             "P"
 159 #define TOK_PRIVS               "PRIVS"
 160 #define TOK_PROTO               "PROTO"
 161 #define TOK_QUIT                "Q"
 162 #define TOK_REHASH              "REHASH"
 163 #define TOK_RESET               "RESET"
 164 #define TOK_RESTART             "RESTART"
 165 #define TOK_RPING               "RI"
 166 #define TOK_RPONG               "RO"
 167 #define TOK_SERVER              "S"
 168 #define TOK_SERVLIST            "SERVSET"
 169 #define TOK_SERVSET             "SERVSET"
 170 #define TOK_SET                 "SET"
 171 #define TOK_SETTIME             "SE"
 172 #define TOK_SILENCE             "U"
 173 #define TOK_SQUERY              "SQUERY"
 174 #define TOK_SQUIT               "SQ"
 175 #define TOK_STATS               "R"
 176 #define TOK_SVSNICK             "SN"
 177 #define TOK_TIME                "TI"
 178 #define TOK_TOPIC               "T"
 179 #define TOK_TRACE               "TR"
 180 #define TOK_UPING               "UP"
 181 #define TOK_USER                "USER"
 182 #define TOK_USERHOST            "USERHOST"
 183 #define TOK_USERIP              "USERIP"
 184 #define TOK_VERSION             "V"
 185 #define TOK_WALLCHOPS           "WC"
 186 #define TOK_WALLOPS             "WA"
 187 #define TOK_WALLHOPS            "WH"
 188 #define TOK_WALLUSERS           "WU"
 189 #define TOK_WALLVOICES          "WV"
 190 #define TOK_WALLHOPS            "WH"
 191 #define TOK_WHO                 "H"
 192 #define TOK_WHOIS               "W"
 193 #define TOK_WHOWAS              "X"
 194
 195 /* Protocol messages; aliased to full commands or tokens depending
 196    on compile-time configuration. ircu prefers tokens WITH THE
 197    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 198    tokenized, because clients' (ie. a linking server) commands are
 199    only checked against the full command list.
 200 */
 201 #if defined(ENABLE_TOKENS)
 202 #define TYPE(NAME)              TOK_ ## NAME
 203 #else /* !ENABLE_TOKENS */
 204 #define TYPE(NAME)              CMD_ ## NAME
 205 #endif /* ENABLE_TOKENS */
 206
 207 #define P10_ACCOUNT             TYPE(ACCOUNT)
 208 #define P10_ADMIN               TYPE(ADMIN)
 209 #define P10_ASLL                TYPE(ASLL)
 210 #define P10_AWAY                TYPE(AWAY)
 211 #define P10_BURST               TYPE(BURST)
 212 #define P10_CLEARMODE           TYPE(CLEARMODE)
 213 #define P10_CLOSE               TYPE(CLOSE)
 214 #define P10_CNOTICE             TYPE(CNOTICE)
 215 #define P10_CONNECT             TYPE(CONNECT)
 216 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 217 #define P10_CREATE              TYPE(CREATE)
 218 #define P10_DESTRUCT            TYPE(DESTRUCT)
 219 #define P10_DESYNCH             TYPE(DESYNCH)
 220 #define P10_DIE                 TYPE(DIE)
 221 #define P10_DNS                 TYPE(DNS)
 222 #define P10_EOB                 TYPE(EOB)
 223 #define P10_EOB_ACK             TYPE(EOB_ACK)
 224 #define P10_ERROR               TYPE(ERROR)
 225 #define P10_FAKEHOST            TYPE(FAKEHOST)
 226 #define P10_GET                 TYPE(GET)
 227 #define P10_GLINE               TYPE(GLINE)
 228 #define P10_HASH                TYPE(HASH)
 229 #define P10_HELP                TYPE(HELP)
 230 #define P10_INFO                TYPE(INFO)
 231 #define P10_INVITE              TYPE(INVITE)
 232 #define P10_ISON                TYPE(ISON)
 233 #define P10_JOIN                TYPE(JOIN)
 234 #define P10_JUPE                TYPE(JUPE)
 235 #define P10_KICK                TYPE(KICK)
 236 #define P10_KILL                TYPE(KILL)
 237 #define P10_LINKS               TYPE(LINKS)
 238 #define P10_LIST                TYPE(LIST)
 239 #define P10_LUSERS              TYPE(LUSERS)
 240 #define P10_MAP                 TYPE(MAP)
 241 #define P10_MARK                TYPE(MARK)
 242 #define P10_MODE                TYPE(MODE)
 243 #define P10_MOTD                TYPE(MOTD)
 244 #define P10_NAMES               TYPE(NAMES)
 245 #define P10_NICK                TYPE(NICK)
 246 #define P10_NOTICE              TYPE(NOTICE)
 247 #define P10_OPER                TYPE(OPER)
 248 #define P10_OPMODE              TYPE(OPMODE)
 249 #define P10_PART                TYPE(PART)
 250 #define P10_PASS                CMD_PASS
 251 #define P10_PING                TYPE(PING)
 252 #define P10_PONG                TYPE(PONG)
 253 #define P10_POST                TYPE(POST)
 254 #define P10_PRIVMSG             TYPE(PRIVMSG)
 255 #define P10_PRIVS               TYPE(PRIVS)
 256 #define P10_PROTO               TYPE(PROTO)
 257 #define P10_QUIT                TYPE(QUIT)
 258 #define P10_REHASH              TYPE(REHASH)
 259 #define P10_RESET               TYPE(RESET)
 260 #define P10_RESTART             TYPE(RESTART)
 261 #define P10_RPING               TYPE(RPING)
 262 #define P10_RPONG               TYPE(RPONG)
 263 #define P10_SERVER              CMD_SERVER
 264 #define P10_SERVLIST            TYPE(SERVLIST)
 265 #define P10_SERVSET             TYPE(SERVSET)
 266 #define P10_SET                 TYPE(SET)
 267 #define P10_SETTIME             TYPE(SETTIME)
 268 #define P10_SILENCE             TYPE(SILENCE)
 269 #define P10_SQUERY              TYPE(SQUERY)
 270 #define P10_SQUIT               TYPE(SQUIT)
 271 #define P10_STATS               TYPE(STATS)
 272 #define P10_SVSNICK             TYPE(SVSNICK)
 273 #define P10_TIME                TYPE(TIME)
 274 #define P10_TOPIC               TYPE(TOPIC)
 275 #define P10_TRACE               TYPE(TRACE)
 276 #define P10_UPING               TYPE(UPING)
 277 #define P10_USER                TYPE(USER)
 278 #define P10_USERHOST            TYPE(USERHOST)
 279 #define P10_USERIP              TYPE(USERIP)
 280 #define P10_VERSION             TYPE(VERSION)
 281 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 282 #define P10_WALLOPS             TYPE(WALLOPS)
 283 #define P10_WALLHOPS            TYPE(WALLHOPS)
 284 #define P10_WALLUSERS           TYPE(WALLUSERS)
 285 #define P10_WALLVOICES          TYPE(WALLVOICES)
 286 #define P10_WHO                 TYPE(WHO)
 287 #define P10_WHOIS               TYPE(WHOIS)
 288 #define P10_WHOWAS              TYPE(WHOWAS)
 289 #define P10_EXEMPT              TYPE(EXEMPT)
 290
 291 /* Servers claiming to have a boot or link time before PREHISTORY
 292  * trigger errors to the log.  We hope no server has been running
 293  * constantly since September 1994.  :)
 294  */
 295 #define PREHISTORY 780000000
 296
 297 static struct server *servers_num[64*64];
 298 static privmsg_func_t *privmsg_funcs;
 299 static unsigned int num_privmsg_funcs;
 300 static privmsg_func_t *notice_funcs;
 301 static unsigned int num_notice_funcs;
 302 static struct dict *unbursted_channels;
 303 static char *his_servername;
 304 static char *his_servercomment;
 305
 306 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);
 307
 308 extern int off_channel;
 309
 310 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 311  * server and Y's indentifying the client on that server. */
 312 struct server*
 313 GetServerN(const char *numeric)
 314 {
 315     switch (strlen(numeric)) {
 316     default:
 317         return servers_num[base64toint(numeric, 2)];
 318     case 4:
 319     case 3:
 320     case 1:
 321         return servers_num[base64toint(numeric, 1)];
 322     case 0:
 323         return NULL;
 324     }
 325 }
 326
 327 struct userNode*
 328 GetUserN(const char *numeric) /* using numeric */
 329 {
 330     struct userNode *un;
 331     struct server *s;
 332     int n, slen, ulen;
 333
 334     switch (strlen(numeric)) {
 335     default:
 336         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 337         return NULL;
 338     case 5: slen = 2; ulen = 3; break;
 339     case 4: slen = 1; ulen = 3; break;
 340     case 3: slen = 1; ulen = 2; break;
 341     case 2: case 1: case 0:
 342         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 343         return NULL;
 344     }
 345     if (!(s = servers_num[base64toint(numeric, slen)])) {
 346         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 347         return NULL;
 348     }
 349     n = base64toint(numeric+slen, ulen) & s->num_mask;
 350     if (!(un = s->users[n])) {
 351         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 352     }
 353     return un;
 354 }
 355
 356 static void
 357 privmsg_user_helper(struct userNode *un, void *data)
 358 {
 359     struct privmsg_desc *pd = data;
 360     unsigned int num = un->num_local;
 361     if (!pd->is_notice) {
 362         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 363             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 364         }
 365     } else {
 366         if ((num < num_notice_funcs) && notice_funcs[num]) {
 367             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 368         }
 369     }
 370 }
 371
 372 void
 373 irc_server(struct server *srv)
 374 {
 375     char extranum[COMBO_NUMERIC_LEN+1];
 376
 377     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 378     if (srv == self) {
 379         /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
 380         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
 381                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 382     } else {
 383         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
 384                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 385     }
 386 }
 387
 388 void
 389 irc_user(struct userNode *user)
 390 {
 391     char b64ip[7];
 392     if (!user)
 393         return;
 394     inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
 395     if (user->modes) {
 396         int modelen;
 397         char modes[32];
 398
 399         modelen = 0;
 400         if (IsOper(user))
 401             modes[modelen++] = 'o';
 402         if (IsInvisible(user))
 403             modes[modelen++] = 'i';
 404         if (IsWallOp(user))
 405             modes[modelen++] = 'w';
 406         if (IsService(user))
 407             modes[modelen++] = 'k';
 408         if (IsServNotice(user))
 409             modes[modelen++] = 's';
 410         if (IsDeaf(user))
 411             modes[modelen++] = 'd';
 412         if (IsGlobal(user))
 413             modes[modelen++] = 'g';
 414         // sethost - reed/apples
 415         // if (IsHelperIrcu(user))
 416         if (IsSetHost(user))
 417             modes[modelen++] = 'h';
 418         if (IsFakeHost(user))
 419             modes[modelen++] = 'f';
 420         if (IsHiddenHost(user))
 421             modes[modelen++] = 'x';
 422         modes[modelen] = 0;
 423
 424         /* we don't need to put the + in modes because it's in the format string. */
 425         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 426                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 427     } else {
 428         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 429                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 430     }
 431 }
 432
 433 void
 434 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 435 {
 436     putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 437 }
 438
 439 void
 440 irc_fakehost(struct userNode *user, const char *host)
 441 {
 442     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 443 }
 444
 445 void
 446 irc_regnick(UNUSED_ARG(struct userNode *user))
 447 {
 448     /* no operation here */
 449 }
 450
 451 void
 452 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 453 {
 454     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 455 }
 456
 457 void
 458 irc_fetchtopic(struct userNode *from, const char *to)
 459 {
 460     if (!from || !to)
 461         return;
 462     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 463 }
 464
 465 void
 466 irc_squit(struct server *srv, const char *message, const char *service_message)
 467 {
 468     if (!service_message)
 469         service_message = message;
 470
 471     /* Are we leaving the network? */
 472     if (srv == self && cManager.uplink->state == CONNECTED) {
 473         unsigned int i;
 474
 475         /* Quit all clients linked to me. */
 476         for (i = 0; i <= self->num_mask; i++) {
 477             if (!self->users[i])
 478                 continue;
 479             irc_quit(self->users[i], service_message);
 480         }
 481     }
 482
 483     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 484
 485     if (srv == self) {
 486         /* Force a reconnect to the currently selected server. */
 487         cManager.uplink->tries = 0;
 488         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 489         close_socket();
 490     }
 491 }
 492
 493 void
 494 irc_wallchops(struct userNode *from, const char *to, const char *message)
 495 {
 496     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 497 }
 498
 499 void
 500 irc_notice(struct userNode *from, const char *to, const char *message)
 501 {
 502     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 503 }
 504
 505 void
 506 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 507 {
 508     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 509 }
 510
 511 void
 512 irc_privmsg(struct userNode *from, const char *to, const char *message)
 513 {
 514     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 515 }
 516
 517 void
 518 irc_eob(void)
 519 {
 520     putsock("%s " P10_EOB, self->numeric);
 521 }
 522
 523 void
 524 irc_eob_ack(void)
 525 {
 526     putsock("%s " P10_EOB_ACK, self->numeric);
 527 }
 528
 529 void
 530 irc_ping(const char *payload)
 531 {
 532     putsock("%s " P10_PING " :%s", self->numeric, payload);
 533 }
 534
 535 void
 536 irc_pong(const char *who, const char *data)
 537 {
 538     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 539 }
 540
 541 void
 542 irc_pass(const char *passwd)
 543 {
 544     putsock(P10_PASS " :%s", passwd);
 545 }
 546
 547 void
 548 irc_introduce(const char *passwd)
 549 {
 550     void timed_send_ping(void *data);
 551
 552     self->self_burst = self->burst = 1;
 553     irc_pass(passwd);
 554     irc_server(self);
 555     burst_length = 0;
 556     timeq_add(now + ping_freq, timed_send_ping, 0);
 557 }
 558
 559 void
 560 irc_gline(struct server *srv, struct gline *gline)
 561 {
 562     putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
 563             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
 564 }
 565
 566 void
 567 irc_settime(const char *srv_name_mask, time_t new_time)
 568 {
 569     ioset_set_time(new_time);
 570     if (!strcmp(srv_name_mask, "*"))
 571         srv_name_mask = "";
 572     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 573 }
 574
 575 void
 576 irc_ungline(const char *mask)
 577 {
 578     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 579 }
 580
 581 static void
 582 irc_burst(struct chanNode *chan)
 583 {
 584     char burst_line[512];
 585     int pos, base_len, len;
 586     struct modeNode *mn;
 587     struct banNode *bn;
 588     struct exemptNode *en;
 589     long last_mode=-1;
 590     unsigned int n;
 591
 592     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 593                        self->numeric, chan->name, chan->timestamp);
 594     len = irc_make_chanmode(chan, burst_line+base_len);
 595     pos = base_len + len;
 596     if (len)
 597         burst_line[pos++] = ' ';
 598
 599     /* dump the users */
 600     for (n=0; n<chan->members.used; n++) {
 601         mn = chan->members.list[n];
 602         if (pos > 500) {
 603             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 604             putsock("%s", burst_line);
 605             pos = base_len;
 606             last_mode = -1;
 607         }
 608         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 609         pos += strlen(mn->user->numeric);
 610         if (mn->modes && (mn->modes != last_mode)) {
 611             last_mode = mn->modes;
 612             burst_line[pos++] = ':';
 613             if (last_mode & MODE_CHANOP)
 614                 burst_line[pos++] = 'o';
 615             if (last_mode & MODE_HALFOP)
 616                 burst_line[pos++] = 'h';
 617             if (last_mode & MODE_VOICE)
 618                 burst_line[pos++] = 'v';
 619         }
 620         if ((n+1)<chan->members.used)
 621             burst_line[pos++] = ',';
 622     }
 623     if (chan->banlist.used) {
 624         /* dump the bans */
 625         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 626             burst_line[pos-1] = 0;
 627             putsock("%s", burst_line);
 628             pos = base_len;
 629         } else {
 630             burst_line[pos++] = ' ';
 631         }
 632
 633         burst_line[pos++] = ':';
 634         burst_line[pos++] = '%';
 635         base_len = pos;
 636         for (n=0; n<chan->banlist.used; n++) {
 637             bn = chan->banlist.list[n];
 638             len = strlen(bn->ban);
 639             if (pos+len+1 > 510) {
 640                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 641                 putsock("%s", burst_line);
 642                 pos = base_len;
 643             }
 644             memcpy(burst_line+pos, bn->ban, len);
 645             pos += len;
 646             burst_line[pos++] = ' ';
 647         }
 648     }
 649     if (chan->exemptlist.used) {
 650         /* dump the exempt */
 651         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 652             burst_line[pos-1] = 0;
 653             putsock("%s", burst_line);
 654             pos = base_len;
 655         } else {
 656             burst_line[pos++] = ' ';
 657         }
 658
 659         burst_line[pos++] = ' ';
 660         burst_line[pos++] = '~';
 661         burst_line[pos++] = ' ';
 662         base_len = pos;
 663         for (n=0; n<chan->exemptlist.used; n++) {
 664             en = chan->exemptlist.list[n];
 665             len = strlen(en->exempt);
 666             if (pos+len+1 > 510) {
 667                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 668                 putsock("%s", burst_line);
 669                 pos = base_len;
 670             }
 671             memcpy(burst_line+pos, en->exempt, len);
 672             pos += len;
 673             burst_line[pos++] = ' ';
 674         }
 675     }
 676     /* print the last line */
 677     burst_line[pos] = 0;
 678     putsock("%s", burst_line);
 679 }
 680
 681 void
 682 irc_quit(struct userNode *user, const char *message)
 683 {
 684     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 685 }
 686
 687 void
 688 irc_error(const char *to, const char *message)
 689 {
 690     if (to) {
 691         putsock("%s " P10_ERROR " :%s", to, message);
 692     } else {
 693         putsock(":%s " P10_ERROR " :%s", self->name, message);
 694     }
 695 }
 696
 697 void
 698 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 699 {
 700     if (from) {
 701         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 702                 from->numeric, target->numeric, self->name, from->nick, message);
 703     } else {
 704         putsock("%s " P10_KILL " %s :%s (%s)",
 705                 self->numeric, target->numeric, self->name, message);
 706     }
 707 }
 708
 709 void
 710 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 711 {
 712     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 713             (from ? from->numeric : self->numeric),
 714             target->name, modes, target->timestamp);
 715 }
 716
 717 void
 718 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 719 {
 720     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 721 }
 722
 723 void
 724 irc_join(struct userNode *who, struct chanNode *what)
 725 {
 726     if (what->members.used == 1) {
 727         putsock("%s " P10_CREATE " %s %lu",
 728                 who->numeric, what->name, what->timestamp);
 729     } else {
 730         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
 731     }
 732 }
 733
 734 void
 735 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
 736 {
 737     const char *numeric;
 738     struct modeNode *mn = GetUserMode(channel, who);
 739     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
 740     putsock("%s " P10_KICK " %s %s :%s",
 741             numeric, channel->name, target->numeric, msg);
 742 }
 743
 744 void
 745 irc_stats(struct userNode *from, struct server *target, char type)
 746 {
 747     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
 748 }
 749
 750 void
 751 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
 752 {
 753     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
 754 }
 755
 756 void
 757 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
 758 {
 759     if (reason) {
 760         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
 761     } else {
 762         putsock("%s " P10_PART " %s", who->numeric, what->name);
 763     }
 764 }
 765
 766 void
 767 irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
 768 {
 769     putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
 770 }
 771
 772 void
 773 irc_raw(const char *what)
 774 {
 775     putsock("%s", what);
 776 }
 777
 778 void
 779 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
 780 {
 781     va_list arg_list;
 782     char buffer[MAXLEN];
 783     va_start(arg_list, format);
 784     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 785     buffer[MAXLEN-1] = 0;
 786     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
 787 }
 788
 789 static void send_burst(void);
 790
 791 static void
 792 change_nicklen(int new_nicklen)
 793 {
 794     unsigned int nn;
 795     char new_nick[NICKLEN+1];
 796     struct userNode *user;
 797
 798     nicklen = new_nicklen;
 799     /* fix up any users we have here */
 800     for (nn=0; nn<=self->num_mask; nn++) {
 801         if (!(user = self->users[nn]))
 802             continue;
 803         safestrncpy(new_nick, user->nick, sizeof(new_nick));
 804         new_nick[nicklen] = 0;
 805         NickChange(user, new_nick, 1);
 806     }
 807 }
 808
 809 static CMD_FUNC(cmd_whois)
 810 {
 811     struct userNode *from;
 812     struct userNode *who;
 813
 814     if (argc < 3)
 815         return 0;
 816     if (!(from = GetUserH(origin))) {
 817         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
 818         return 0;
 819     }
 820     if(!(who = GetUserH(argv[2]))) {
 821         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
 822         return 1;
 823     }
 824     if (IsHiddenHost(who) && !IsOper(from)) {
 825         /* Just stay quiet. */
 826         return 1;
 827     }
 828     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
 829     if (his_servername && his_servercomment)
 830         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
 831     else
 832         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
 833     if (IsOper(who))
 834         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
 835     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
 836     return 1;
 837 }
 838
 839 static CMD_FUNC(cmd_server)
 840 {
 841     struct server *srv;
 842     const char *str;
 843
 844     if (argc < 8)
 845         return 0;
 846     if (self->uplink) {
 847         /* another server introduced us */
 848         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 849         if (!srv)
 850             return 0;
 851         srv->self_burst = argv[5][0] == 'J';
 852         srv->burst = 1;
 853     } else {
 854         /* this must be our uplink */
 855         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 856         if (!srv)
 857             return 0;
 858         srv->self_burst = argv[5][0] == 'J';
 859         srv->burst = 1;
 860         if ((argv[7][0] == '+') && !force_n2k) {
 861             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
 862         }
 863         send_burst();
 864     }
 865
 866     /* Fix up our timestamps if necessary. */
 867     if (srv->boot <= PREHISTORY) {
 868         /* Server from the mists of time.. */
 869         if (srv->hops == 1) {
 870             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
 871         }
 872     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
 873                && enabled_string(str)) {
 874         /* If we have a reliable clock, we just keep our current time. */
 875     } else {
 876         if (srv->boot <= self->boot) {
 877             /* The other server is older than us.  Accept their timestamp.
 878              * Alternately, we are same age, but we accept their time
 879              * since we are linking to them. */
 880             self->boot = srv->boot;
 881             ioset_set_time(srv->link);
 882         }
 883     }
 884     if (srv == self->uplink) {
 885         extern time_t burst_begin;
 886         burst_begin = now;
 887     }
 888     return 1;
 889 }
 890
 891 static CMD_FUNC(cmd_eob)
 892 {
 893     struct server *sender;
 894     dict_iterator_t it;
 895     unsigned int ii;
 896
 897     if (!(sender = GetServerH(origin)))
 898         return 0;
 899     if (sender == self->uplink) {
 900         cManager.uplink->state = CONNECTED;
 901         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
 902             irc_burst(iter_data(it));
 903         dict_delete(unbursted_channels);
 904         unbursted_channels = NULL;
 905         irc_eob();
 906         irc_eob_ack();
 907     }
 908     sender->self_burst = 0;
 909     recalc_bursts(sender);
 910     for (ii=0; ii<slf_used; ii++)
 911         slf_list[ii](sender);
 912     return 1;
 913 }
 914
 915 static CMD_FUNC(cmd_eob_ack)
 916 {
 917     extern time_t burst_begin;
 918
 919     if (GetServerH(origin) == self->uplink) {
 920         burst_length = now - burst_begin;
 921         self->self_burst = self->burst = 0;
 922     }
 923     cManager.uplink->state = CONNECTED;
 924     return 1;
 925 }
 926
 927 static CMD_FUNC(cmd_ping)
 928 {
 929     struct server *srv;
 930     struct userNode *un;
 931
 932     if(argc > 3)
 933         irc_pong(argv[2], argv[1]);
 934     else if ((srv = GetServerH(origin)))
 935         irc_pong(self->name, srv->numeric);
 936     else if ((un = GetUserH(origin)))
 937         irc_pong(self->name, un->numeric);
 938     else
 939         irc_pong(self->name, origin);
 940
 941     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 942     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
 943     timeq_add(now + ping_freq, timed_send_ping, 0);
 944     received_ping();
 945     return 1;
 946 }
 947
 948 static CMD_FUNC(cmd_error_nick)
 949 {
 950     /* Go back to original IRC length .. and try to reconnect :/ */
 951     change_nicklen(9);
 952     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
 953     return 1;
 954 }
 955
 956 struct create_desc {
 957     struct userNode *user;
 958     time_t when;
 959 };
 960
 961 static void
 962 join_helper(struct chanNode *chan, void *data)
 963 {
 964     struct create_desc *cd = data;
 965     AddChannelUser(cd->user, chan);
 966 }
 967
 968 static void
 969 create_helper(char *name, void *data)
 970 {
 971     struct create_desc *cd = data;
 972
 973     if (!strcmp(name, "0")) {
 974         while (cd->user->channels.used > 0)
 975             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
 976         return;
 977     }
 978
 979     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
 980 }
 981
 982 static CMD_FUNC(cmd_create)
 983 {
 984     struct create_desc cd;
 985     struct userNode *user;
 986
 987     if ((argc < 3) || !(user = GetUserH(origin)))
 988         return 0;
 989     cd.user = user;
 990     cd.when = atoi(argv[2]);
 991     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
 992     return 1;
 993 }
 994
 995 static CMD_FUNC(cmd_join)
 996 {
 997     struct create_desc cd;
 998
 999     if (!(cd.user = GetUserH(origin)))
1000         return 0;
1001     if (argc < 2)
1002         return 0;
1003     else if (argc < 3)
1004         cd.when = now;
1005     else
1006         cd.when = atoi(argv[2]);
1007     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1008     return 1;
1009 }
1010
1011 static CMD_FUNC(cmd_pong)
1012 {
1013     if (argc < 3)
1014         return 0;
1015     if (!strcmp(argv[2], self->name)) {
1016         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1017         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1018         timeq_add(now + ping_freq, timed_send_ping, 0);
1019         received_ping();
1020     }
1021     return 1;
1022 }
1023
1024 static CMD_FUNC(cmd_nick)
1025 {
1026     struct userNode *user;
1027     if ((user = GetUserH(origin))) {
1028         /* nick change (since the source is a user numeric) */
1029         if (argc < 2)
1030             return 0;
1031         NickChange(user, argv[1], 1);
1032     } else {
1033         struct server *serv;
1034         char modes[MAXLEN];
1035         /* new nick */
1036         if (argc < 9)
1037             return 0;
1038         serv = GetServerH(origin);
1039         if (argc > 9)
1040             unsplit_string(argv+6, argc-9, modes);
1041         else
1042             strcpy(modes, "+");
1043         AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1044     }
1045     return 1;
1046 }
1047
1048 static CMD_FUNC(cmd_account)
1049 {
1050     struct userNode *user;
1051     struct server *server;
1052     struct handle_info *hi;
1053
1054     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1055         return 0; /* Origin must be server. */
1056
1057     /* This next line appears to tremple origin.. why? */
1058     user = GetUserN(argv[1]);
1059     if (!user)
1060         return 1; /* A QUIT probably passed the ACCOUNT. */
1061
1062     if(!strcmp(argv[2],"C"))
1063     {
1064         if((hi = loc_auth(argv[4], argv[5])))
1065         {
1066             /* Return a AC A */
1067             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1068
1069         }
1070         else
1071         {
1072             /* Return a AC D */
1073             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1074         }
1075         return 1;
1076     }
1077     else if(!strcmp(argv[2],"R"))
1078        call_account_func(user, argv[3]);
1079     else
1080         call_account_func(user, argv[2]); /* For backward compatability */
1081     return 1;
1082 }
1083
1084 static CMD_FUNC(cmd_fakehost)
1085 {
1086     struct userNode *user;
1087
1088     if ((argc < 3) || !origin || !GetServerH(origin))
1089         return 0;
1090     if (!(user = GetUserN(argv[1])))
1091         return 1;
1092     assign_fakehost(user, argv[2], 0);
1093     return 1;
1094 }
1095
1096 static CMD_FUNC(cmd_burst)
1097 {
1098     extern int rel_age;
1099     char modes[MAXLEN], *members = "";
1100     static char exemptlist[MAXLEN], banlist[MAXLEN];
1101     unsigned int next = 3, res = 1;
1102     int ctype = 0, echeck = 0, bcheck = 0;
1103     struct chanNode *cNode;
1104     struct userNode *un;
1105     struct modeNode *mNode;
1106     long mode;
1107     char *user, *end, sep;
1108     time_t in_timestamp;
1109     char* parm = NULL;
1110
1111     if (argc < 3)
1112         return 0;
1113     modes[0] = 0;
1114
1115     exemptlist[0] = 0;
1116     banlist[0] = 0;
1117
1118     while (next < argc) {
1119         switch (argv[next][0]) {
1120         case '+': {
1121             const char *pos;
1122             int n_modes;
1123             for (pos=argv[next], n_modes = 1; *pos; pos++)
1124                 if ((*pos == 'k') || (*pos == 'l'))
1125                     n_modes++;
1126             unsplit_string(argv+next, n_modes, modes);
1127             next += n_modes;
1128             break;
1129         }
1130         case '%': {
1131             for(parm = mysep(&argv[next], " "); /* parm = first param */
1132                   parm;   /* While param is not null */
1133                   parm = mysep(&argv[next], " ")  /* parm = next param */
1134                )
1135             {
1136               switch (parm[0]) {
1137                 case '%': {
1138                   ctype = 1;
1139                   break;
1140                 }
1141                 case '~': {
1142                   ctype = 2;
1143                   break;
1144                 }
1145                 default: {
1146                   break;
1147                 }
1148               }
1149               if (ctype == 1) {
1150                 if (bcheck == 0) {
1151                   /* strip % char off start of very first ban */
1152                   if (strlen(parm) > 1) {
1153                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1154                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1155                   }
1156                   bcheck = 1;
1157                 } else {
1158                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1159                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1160                 }
1161               } else if (ctype == 2) {
1162                 if (echeck == 0) {
1163                    echeck = 1;
1164                 } else {
1165                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1166                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1167                 }
1168               }
1169             }
1170             next++;
1171             break;
1172         }
1173         default: members = argv[next++]; break;
1174       }
1175     }
1176
1177     in_timestamp = atoi(argv[2]);
1178     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1179         cNode->timestamp = in_timestamp;
1180         dict_remove(unbursted_channels, cNode->name);
1181         irc_burst(cNode);
1182     }
1183     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1184
1185     /* Burst channel members in now. */
1186     for (user = members, sep = *members, mode = 0; sep; user = end) {
1187         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1188         sep = *end++; end[-1] = 0;
1189         if (sep == ':') {
1190             mode = 0;
1191             while ((sep = *end++)) {
1192                 if (sep == 'o')
1193                     mode |= MODE_CHANOP;
1194                 else if (sep == 'h')
1195                     mode |= MODE_HALFOP;
1196                 else if (sep == 'v')
1197                     mode |= MODE_VOICE;
1198                 else if (isdigit(sep)) {
1199                     mode |= MODE_CHANOP;
1200                     while (isdigit(*end)) end++;
1201                 } else
1202                     break;
1203             }
1204             if (rel_age < 0)
1205                 mode = 0;
1206         }
1207         if (!(un = GetUserN(user))) {
1208             res = 0;
1209             continue;
1210         }
1211         if ((mNode = AddChannelUser(un, cNode)))
1212             mNode->modes = mode;
1213     }
1214
1215     return res;
1216 }
1217
1218 static CMD_FUNC(cmd_mode)
1219 {
1220     struct chanNode *cn;
1221     struct userNode *un;
1222     char *sethost; // sethost - reed/apples
1223     int i; // sethost - reed/apples
1224
1225     if (argc < 3)
1226         return 0;
1227     if (!IsChannelName(argv[1])) {
1228         un = GetUserH(argv[1]);
1229         if (!un) {
1230             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1231             return 0;
1232         }
1233         // sethost - reed/apples
1234         if (argc == 3)
1235         mod_usermode(un, argv[2]);
1236         else {
1237           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1238           i = 0;
1239           while((sethost[i++] = *argv[2]++));
1240           i--;
1241          sethost[i++] = ' ';
1242           while((sethost[i++] = *argv[3]++));
1243           mod_usermode(un, sethost); // sethost - reed/apples
1244         }
1245
1246         return 1;
1247     }
1248
1249     if (!(cn = GetChannel(argv[1]))) {
1250         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1251         return 0;
1252     }
1253     if ((un = GetUserH(origin))) {
1254         struct modeNode *mn;
1255         /* Update idle time for person setting the mode */
1256         if ((mn = GetUserMode(cn, un)))
1257             mn->idle_since = now;
1258     } else {
1259         /* If it came from a server, reset timestamp to re-sync. */
1260         cn->timestamp = atoi(argv[argc-1]);
1261     }
1262
1263     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1264 }
1265
1266 static CMD_FUNC(cmd_opmode)
1267 {
1268     struct chanNode *cn;
1269     struct userNode *un;
1270
1271     if (argc < 3)
1272         return 0;
1273
1274     if (!(cn = GetChannel(argv[1]))) {
1275         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1276         return 0;
1277     }
1278     if (!(un = GetUserH(origin))) {
1279         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1280         return 0;
1281     }
1282     if (!IsOper(un)) {
1283         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1284         return 0;
1285     }
1286
1287     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1288 }
1289
1290 static int clear_chanmode(struct chanNode *channel, const char *modes);
1291
1292 static CMD_FUNC(cmd_clearmode)
1293 {
1294     struct chanNode *cn;
1295     struct userNode *un;
1296
1297     if (argc < 3)
1298         return 0;
1299
1300     if (!(cn = GetChannel(argv[1]))) {
1301         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1302         return 0;
1303     }
1304     if (!(un = GetUserH(origin))) {
1305         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1306         return 0;
1307     }
1308     if (!IsOper(un)) {
1309         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1310         return 0;
1311     }
1312
1313     return clear_chanmode(cn, argv[2]);
1314 }
1315
1316 static CMD_FUNC(cmd_topic)
1317 {
1318     struct chanNode *cn;
1319     time_t chan_ts, topic_ts;
1320
1321     if (argc < 3)
1322         return 0;
1323     if (!(cn = GetChannel(argv[1]))) {
1324         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1325         return 0;
1326     }
1327     if (argc >= 5) {
1328         /* Looks like an Asuka style topic burst. */
1329         chan_ts = atoi(argv[2]);
1330         topic_ts = atoi(argv[3]);
1331     } else {
1332         chan_ts = cn->timestamp;
1333         topic_ts = now;
1334     }
1335     SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1336     cn->topic_time = topic_ts;
1337     return 1;
1338 }
1339
1340 static CMD_FUNC(cmd_num_topic)
1341 {
1342     struct chanNode *cn;
1343
1344     if (!argv[0])
1345         return 0; /* huh? */
1346     if (argv[2]) {
1347         cn = GetChannel(argv[2]);
1348         if (!cn) {
1349             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1350             return 0;
1351         }
1352     } else
1353         return 0;
1354
1355     switch (atoi(argv[0])) {
1356     case 331:
1357         cn->topic_time = 0;
1358         break;  /* no topic */
1359     case 332:
1360         if (argc < 4)
1361             return 0;
1362         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1363         break;
1364     case 333:
1365         if (argc < 5)
1366             return 0;
1367         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1368         cn->topic_time = atoi(argv[4]);
1369         break;
1370     default:
1371         return 0; /* should never happen */
1372     }
1373     return 1;
1374 }
1375
1376 static CMD_FUNC(cmd_num_gline)
1377 {
1378     if (argc < 6)
1379         return 0;
1380     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1381     return 1;
1382 }
1383
1384 static CMD_FUNC(cmd_quit)
1385 {
1386     struct userNode *user;
1387     if (argc < 2)
1388         return 0;
1389     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1390      * call DelUser unless we have the user in our grasp. */
1391     if ((user = GetUserH(origin)))
1392         DelUser(user, NULL, false, argv[1]);
1393     return 1;
1394 }
1395
1396 static CMD_FUNC(cmd_kill)
1397 {
1398     struct userNode *user;
1399     if (argc < 2)
1400         return 0;
1401     user = GetUserN(argv[1]);
1402     if (!user) {
1403         /* If we get a KILL for a non-existent user, it could be a
1404          * Ghost response to a KILL we sent out earlier.  So we only
1405          * whine if the target is local.
1406          */
1407         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1408             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1409         return 0;
1410     }
1411
1412     if (IsLocal(user) && IsService(user)) {
1413         /* TODO: rate limit this so silly things don't happen. */
1414         ReintroduceUser(user);
1415         return 1;
1416     }
1417
1418     DelUser(user, NULL, false, argv[2]);
1419     return 1;
1420 }
1421
1422 static CMD_FUNC(cmd_part)
1423 {
1424     struct userNode *user;
1425
1426     if (argc < 2)
1427         return 0;
1428     user = GetUserH(origin);
1429     if (!user)
1430         return 0;
1431     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1432     return 1;
1433 }
1434
1435 static CMD_FUNC(cmd_kick)
1436 {
1437     if (argc < 3)
1438         return 0;
1439     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1440     return 1;
1441 }
1442
1443 static CMD_FUNC(cmd_squit)
1444 {
1445     struct server *server;
1446
1447     if (argc < 4)
1448         return 0;
1449     if (!(server = GetServerH(argv[1])))
1450         return 0;
1451
1452     if (server == self->uplink) {
1453         /* Force a reconnect to the currently selected server. */
1454         cManager.uplink->tries = 0;
1455         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1456         close_socket();
1457         return 1;
1458     }
1459
1460     DelServer(server, 0, argv[3]);
1461     return 1;
1462 }
1463
1464 static CMD_FUNC(cmd_privmsg)
1465 {
1466     struct privmsg_desc pd;
1467     if (argc != 3)
1468         return 0;
1469     pd.user = GetUserH(origin);
1470     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1471         return 1;
1472     pd.is_notice = 0;
1473     pd.text = argv[2];
1474     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1475     return 1;
1476 }
1477
1478 static CMD_FUNC(cmd_notice)
1479 {
1480     struct privmsg_desc pd;
1481     if (argc != 3)
1482         return 0;
1483     pd.user = GetUserH(origin);
1484     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1485         return 1;
1486     pd.is_notice = 1;
1487     pd.text = argv[2];
1488     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1489     return 1;
1490 }
1491
1492 static CMD_FUNC(cmd_away)
1493 {
1494     struct userNode *uNode;
1495
1496     uNode = GetUserH(origin);
1497     if (!uNode)
1498         return 1;
1499     if (argc < 2)
1500         uNode->modes &= ~FLAGS_AWAY;
1501     else
1502         uNode->modes |= FLAGS_AWAY;
1503     return 1;
1504 }
1505
1506 static CMD_FUNC(cmd_gline)
1507 {
1508     if (argc < 3)
1509         return 0;
1510     if (argv[2][0] == '+') {
1511         if (argc < 5)
1512             return 0;
1513         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1514         return 1;
1515     } else if (argv[2][0] == '-') {
1516         gline_remove(argv[2]+1, 0);
1517         return 1;
1518     } else
1519         return 0;
1520 }
1521
1522 static CMD_FUNC(cmd_svsnick)
1523 {
1524     struct userNode *target, *dest;
1525     if ((argc < 4)
1526         || !(target = GetUserN(argv[1]))
1527         || !IsLocal(target)
1528         || (dest = GetUserH(argv[2])))
1529         return 0;
1530     NickChange(target, argv[2], 0);
1531     return 1;
1532 }
1533
1534 static oper_func_t *of_list;
1535 static unsigned int of_size = 0, of_used = 0;
1536
1537 void
1538 free_user(struct userNode *user)
1539 {
1540     free(user->nick);
1541     free(user);
1542 }
1543
1544 static void
1545 parse_cleanup(void)
1546 {
1547     unsigned int nn;
1548     free(of_list);
1549     free(privmsg_funcs);
1550     free(notice_funcs);
1551     free(mcf_list);
1552     dict_delete(irc_func_dict);
1553     for (nn=0; nn<dead_users.used; nn++)
1554         free_user(dead_users.list[nn]);
1555     userList_clean(&dead_users);
1556 }
1557
1558 static void
1559 p10_conf_reload(void) {
1560     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1561 }
1562
1563 static void
1564 remove_unbursted_channel(struct chanNode *cNode) {
1565     if (unbursted_channels)
1566         dict_remove(unbursted_channels, cNode->name);
1567 }
1568
1569 void
1570 init_parse(void)
1571 {
1572     const char *str, *desc;
1573     int numnick, usermask, max_users;
1574     char numer[COMBO_NUMERIC_LEN+1];
1575
1576     /* read config items */
1577     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1578     ping_freq = str ? ParseInterval(str) : 120;
1579     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1580     ping_timeout = str ? ParseInterval(str) : 30;
1581     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1582     force_n2k = str ? enabled_string(str) : 1;
1583     str = conf_get_data("server/numeric", RECDB_QSTRING);
1584     if (!str) {
1585         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1586         exit(1);
1587     }
1588     numnick = atoi(str);
1589     str = conf_get_data("server/max_users", RECDB_QSTRING);
1590     max_users = str ? atoi(str) : 4096;
1591     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1592     usermask--;
1593     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1594         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1595     else
1596         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1597
1598     str = conf_get_data("server/his_servername", RECDB_QSTRING);
1599     his_servername = str ? strdup(str) : NULL;
1600     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1601     his_servercomment = str ? strdup(str) : NULL;
1602
1603     str = conf_get_data("server/hostname", RECDB_QSTRING);
1604     desc = conf_get_data("server/description", RECDB_QSTRING);
1605     if (!str || !desc) {
1606         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1607         exit(1);
1608     }
1609     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1610     conf_register_reload(p10_conf_reload);
1611
1612     irc_func_dict = dict_new();
1613     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1614     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1615     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1616     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1617     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1618     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1619     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1620     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1621     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1622     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1623     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1624     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1625     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1626     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1627     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1628     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1629     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1630     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1631     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1632     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1633     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1634     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1635     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1636     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1637     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1638     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1639     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1640     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1641     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1642     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1643     dict_insert(irc_func_dict, CMD_PART, cmd_part);
1644     dict_insert(irc_func_dict, TOK_PART, cmd_part);
1645     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1646     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1647     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1648     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1649     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1650     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1651     dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1652     dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1653     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1654     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1655     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1656     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1657     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1658     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1659     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1660     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1661     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1662     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1663     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1664     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1665     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1666     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1667     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1668     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1669     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1670     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1671     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1672     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1673     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1674     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1675     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1676     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1677
1678     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1679      * Apparently to obliterate channels from any servers that think they
1680      * exist?
1681      */
1682     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1683     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1684     /* Ignore invites */
1685     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1686     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1687     /* DESYNCH is just informational, so ignore it */
1688     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1689     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1690     /* Ignore channel operator notices. */
1691     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1692     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1693     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1694     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1695     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1696     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1697     /* Ignore opers being silly. */
1698     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1699     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1700     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1701     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1702     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
1703     /* Ignore dnsbl exemptions */
1704     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
1705     dict_insert(irc_func_dict, TOK_MARK, cmd_dummy);
1706     /* Ignore privs */
1707     dict_insert(irc_func_dict, TOK_PRIVS, cmd_dummy);
1708     /* We have reliable clock!  Always!  Wraaa! */
1709     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1710     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1711     /* handle topics */
1712     dict_insert(irc_func_dict, "331", cmd_num_topic);
1713     dict_insert(irc_func_dict, "332", cmd_num_topic);
1714     dict_insert(irc_func_dict, "333", cmd_num_topic);
1715     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1716     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1717     /* ban list resetting */
1718     /* "stats g" responses */
1719     dict_insert(irc_func_dict, "247", cmd_num_gline);
1720     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1721     /* other numeric responses we might get */
1722     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1723     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1724     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1725     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
1726     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1727     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1728     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1729     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1730     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1731
1732     num_privmsg_funcs = 16;
1733     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1734     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1735
1736     num_notice_funcs = 16;
1737     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1738     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1739
1740     userList_init(&dead_users);
1741     reg_del_channel_func(remove_unbursted_channel);
1742     reg_exit_func(parse_cleanup);
1743 }
1744
1745 int
1746 parse_line(char *line, int recursive)
1747 {
1748     char *argv[MAXNUMPARAMS], *origin;
1749     int argc, cmd, res=0;
1750     cmd_func_t *func;
1751
1752     argc = split_line(line, true, MAXNUMPARAMS, argv);
1753     cmd = self->uplink || !argv[0][1] || !argv[0][2];
1754     if (argc > cmd) {
1755         if (cmd) {
1756             if (argv[0][0] == ':') {
1757                 origin = argv[0]+1;
1758             } else if (!argv[0][1] || !argv[0][2]) {
1759                 struct server *sNode = GetServerN(argv[0]);
1760                 origin = sNode ? sNode->name : 0;
1761             } else {
1762                 struct userNode *uNode = GetUserN(argv[0]);
1763                 origin = uNode ? uNode->nick : 0;
1764             }
1765         } else
1766             origin = 0;
1767         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1768             res = func(origin, argc-cmd, argv+cmd);
1769     }
1770     if (!res) {
1771         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1772     } else if (!recursive) {
1773         unsigned int i;
1774         for (i=0; i<dead_users.used; i++)
1775             free_user(dead_users.list[i]);
1776         dead_users.used = 0;
1777     }
1778     return res;
1779 }
1780
1781 static void
1782 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1783 {
1784     char *j, old;
1785     do {
1786         j = target_list;
1787         while (*j != 0 && *j != ',')
1788             j++;
1789         old = *j;
1790         *j = 0;
1791         if (IsChannelName(target_list)
1792             || (target_list[0] == '0' && target_list[1] == '\0')) {
1793             struct chanNode *chan = GetChannel(target_list);
1794             if (chan) {
1795                 if (cf)
1796                     cf(chan, data);
1797             } else {
1798                 if (nc)
1799                     nc(target_list, data);
1800             }
1801         } else {
1802             struct userNode *user;
1803             struct privmsg_desc *pd = data;
1804
1805             pd->is_qualified = 0;
1806             if (*target_list == '@') {
1807                 user = NULL;
1808             } else if (strchr(target_list, '@')) {
1809                 struct server *server;
1810
1811                 pd->is_qualified = 1;
1812                 user = GetUserH(strtok(target_list, "@"));
1813                 server = GetServerH(strtok(NULL, "@"));
1814
1815                 if (user && (user->uplink != server)) {
1816                     /* Don't attempt to index into any arrays
1817                        using a user's numeric on another server. */
1818                     user = NULL;
1819                 }
1820             } else {
1821                 user = GetUserN(target_list);
1822             }
1823
1824             if (user) {
1825                 if (uf)
1826                     uf(user, data);
1827             } else {
1828                 if (nu)
1829                     nu(target_list, data);
1830             }
1831         }
1832         target_list = j+1;
1833     } while (old == ',');
1834 }
1835
1836 static int
1837 get_local_numeric(void)
1838 {
1839     static unsigned int next_numeric = 0;
1840     if (self->clients > self->num_mask)
1841         return -1;
1842     while (self->users[next_numeric])
1843         if (++next_numeric > self->num_mask)
1844             next_numeric = 0;
1845     return next_numeric;
1846 }
1847
1848 static void
1849 make_numeric(struct server *svr, int local_num, char *outbuf)
1850 {
1851     int slen, llen;
1852
1853     if (force_n2k || svr->numeric[1]) {
1854         slen = 2;
1855         llen = 3;
1856     } else {
1857         slen = 1;
1858         llen = (local_num < 64*64) ? 2 : 3;
1859     }
1860     strncpy(outbuf, svr->numeric, slen);
1861     inttobase64(outbuf+slen, local_num, llen);
1862     outbuf[slen+llen] = 0;
1863 }
1864
1865 struct server *
1866 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1867 {
1868     struct server* sNode;
1869     int slen, mlen;
1870
1871     if ((sNode = GetServerN(numeric))) {
1872         /* This means we're trying to re-add an existant server.
1873          * To be safe, we should forget the previous incarnation.
1874          * (And all its linked servers.)
1875          *
1876          * It usually only happens in replays when the original
1877          * had a ping timeout and the replay didn't (because
1878          * replaying a ping timeout invariably gets things wrong).
1879          */
1880         DelServer(sNode, 0, NULL);
1881     }
1882
1883     switch (strlen(numeric)) {
1884     case 5: slen = 2; mlen = 3; break;
1885     case 4: slen = 1; mlen = 3; break;
1886     case 3: slen = 1; mlen = 2; break;
1887     default:
1888         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1889         return NULL;
1890     }
1891
1892     sNode = calloc(1, sizeof(*sNode));
1893     sNode->uplink = uplink;
1894     safestrncpy(sNode->name, name, sizeof(sNode->name));
1895     sNode->num_mask = base64toint(numeric+slen, mlen);
1896     sNode->hops = hops;
1897     sNode->boot = boot;
1898     sNode->link = link;
1899     strncpy(sNode->numeric, numeric, slen);
1900     safestrncpy(sNode->description, description, sizeof(sNode->description));
1901     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1902     serverList_init(&sNode->children);
1903     if (sNode->uplink) {
1904         /* uplink may be NULL if we're just building ourself */
1905         serverList_append(&sNode->uplink->children, sNode);
1906     }
1907     servers_num[base64toint(numeric, slen)] = sNode;
1908     dict_insert(servers, sNode->name, sNode);
1909     return sNode;
1910 }
1911
1912 void DelServer(struct server* serv, int announce, const char *message)
1913 {
1914     unsigned int i;
1915
1916     /* If we receive an ERROR command before the SERVER
1917      * command a NULL server can be passed */
1918     if (!serv)
1919         return;
1920
1921     /* Hrm, what's the right way to SQUIT some other server?
1922      * (This code is only to handle killing juped servers.) */
1923     if (announce && (serv->uplink == self) && (serv != self->uplink))
1924         irc_squit(serv, message, NULL);
1925
1926     /* must recursively remove servers linked to this one first */
1927     for (i=serv->children.used;i>0;)
1928         if (serv->children.list[--i] != self)
1929             DelServer(serv->children.list[i], false, NULL);
1930
1931     /* clean up server's user hash tables */
1932     for (i=0;i<=serv->num_mask;i++)
1933         if (serv->users[i])
1934             DelUser(serv->users[i], NULL, false, "server delinked");
1935
1936     /* delete server */
1937     if (serv->uplink)
1938         serverList_remove(&serv->uplink->children, serv);
1939     if (serv == self->uplink)
1940         self->uplink = NULL;
1941     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1942     dict_remove(servers, serv->name);
1943     serverList_clean(&serv->children);
1944     free(serv->users);
1945     free(serv);
1946 }
1947
1948 struct userNode *
1949 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
1950 {
1951     char numeric[COMBO_NUMERIC_LEN+1];
1952     int local_num = get_local_numeric();
1953     time_t timestamp = now;
1954     struct userNode *old_user = GetUserH(nick);
1955
1956     if (old_user) {
1957         if (IsLocal(old_user))
1958             return old_user;
1959         timestamp = old_user->timestamp - 1;
1960     }
1961     if (local_num == -1) {
1962         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1963         return 0;
1964     }
1965     if (!hostname)
1966         hostname = self->name;
1967     make_numeric(self, local_num, numeric);
1968     /* TODO: Make these modes part of the conf file */
1969     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
1970 }
1971
1972 struct userNode *
1973 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1974 {
1975     char numeric[COMBO_NUMERIC_LEN+1];
1976     int local_num = get_local_numeric();
1977     time_t timestamp = now;
1978     struct userNode *old_user = GetUserH(nick);
1979
1980     if (old_user) {
1981         if (IsLocal(old_user))
1982             return old_user;
1983         timestamp = old_user->timestamp - 1;
1984     }
1985     if (local_num == -1) {
1986         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
1987         return 0;
1988     }
1989     make_numeric(self, local_num, numeric);
1990     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
1991 }
1992
1993 int
1994 is_valid_nick(const char *nick) {
1995     unsigned int ii;
1996     /* IRC has some of The Most Fucked-Up ideas about character sets
1997      * in the world.. */
1998     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
1999         return 0;
2000     for (ii = 0; nick[ii]; ++ii)
2001         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2002             return 0;
2003     if (strlen(nick) > nicklen)
2004         return 0;
2005     return 1;
2006 }
2007
2008 static struct userNode*
2009 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)
2010 {
2011     struct userNode *oldUser, *uNode;
2012     unsigned int n, ignore_user;
2013
2014     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2015         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2016         return NULL;
2017     }
2018
2019     if (!uplink) {
2020         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2021         return NULL;
2022     }
2023
2024     if (uplink != GetServerN(numeric)) {
2025         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2026         return NULL;
2027     }
2028
2029     if (!is_valid_nick(nick)) {
2030         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2031         return NULL;
2032     }
2033
2034     ignore_user = 0;
2035     if ((oldUser = GetUserH(nick))) {
2036         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2037             /* The service should collide the new user off. */
2038             oldUser->timestamp = timestamp - 1;
2039             irc_user(oldUser);
2040         }
2041         if (oldUser->timestamp > timestamp) {
2042             /* "Old" user is really newer; remove them */
2043             DelUser(oldUser, 0, 1, "Overruled by older nick");
2044         } else {
2045             /* User being added is too new; do not add them to
2046              * clients, but do add them to the server's list, since it
2047              * will send a KILL and QUIT soon. */
2048             ignore_user = 1;
2049         }
2050     }
2051
2052     /* create new usernode and set all values */
2053     uNode = calloc(1, sizeof(*uNode));
2054     uNode->nick = strdup(nick);
2055     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2056     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2057     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2058     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2059     uNode->ip.s_addr = htonl(base64toint(realip, 6));
2060     uNode->timestamp = timestamp;
2061     modeList_init(&uNode->channels);
2062     uNode->uplink = uplink;
2063     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2064         uNode->uplink->max_clients = uNode->uplink->clients;
2065     }
2066     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2067     uNode->uplink->users[uNode->num_local] = uNode;
2068     mod_usermode(uNode, modes);
2069     if (ignore_user)
2070         return uNode;
2071
2072     dict_insert(clients, uNode->nick, uNode);
2073     if (dict_size(clients) > max_clients) {
2074         max_clients = dict_size(clients);
2075         max_clients_time = now;
2076     }
2077     if (IsLocal(uNode))
2078         irc_user(uNode);
2079     for (n=0; n<nuf_used; n++)
2080         if (nuf_list[n](uNode))
2081             break;
2082     return uNode;
2083 }
2084
2085 /* removes user from it's server's hash table and nick hash table */
2086 void
2087 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2088 {
2089     unsigned int n;
2090
2091     verify(user);
2092
2093     /* mark them as dead, in case anybody cares */
2094     user->dead = 1;
2095
2096     /* remove pending adduser commands */
2097     wipe_adduser_pending(NULL, user);
2098
2099     /* remove user from all channels */
2100     while (user->channels.used > 0)
2101         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2102
2103     /* Call these in reverse order so ChanServ can update presence
2104        information before NickServ nukes the handle_info. */
2105     for (n = duf_used; n > 0; )
2106         duf_list[--n](user, killer, why);
2107
2108     user->uplink->clients--;
2109     user->uplink->users[user->num_local] = NULL;
2110     if (IsOper(user))
2111         userList_remove(&curr_opers, user);
2112     /* remove from global dictionary, but not if after a collide */
2113     if (user == dict_find(clients, user->nick, NULL))
2114         dict_remove(clients, user->nick);
2115
2116     if (IsInvisible(user))
2117         invis_clients--;
2118
2119     if (announce) {
2120         if (IsLocal(user))
2121             irc_quit(user, why);
2122         else
2123             irc_kill(killer, user, why);
2124     }
2125
2126     modeList_clean(&user->channels);
2127     /* We don't free them, in case we try to privmsg them or something
2128      * (like when a stupid oper kills themself).  We just put them onto
2129      * a list of clients that get freed after processing each line.
2130      */
2131     if (dead_users.size)
2132         userList_append(&dead_users, user);
2133     else
2134         free_user(user);
2135 }
2136
2137 void mod_usermode(struct userNode *user, const char *mode_change) {
2138     static void call_oper_funcs(struct userNode *user);
2139     int add = 1;
2140     const char *word = mode_change;
2141
2142     if (!user || !mode_change)
2143         return;
2144     while (*word != ' ' && *word) word++;
2145     while (*word == ' ') word++;
2146     while (1) {
2147 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2148         switch (*mode_change++) {
2149         case 0: case ' ': return;
2150         case '+': add = 1; break;
2151         case '-': add = 0; break;
2152         case 'o':
2153             do_user_mode(FLAGS_OPER);
2154             if (add) {
2155                 if(!IsOper(user)) { /* Dont re-oper an oper */
2156                     userList_append(&curr_opers, user);
2157                     call_oper_funcs(user);
2158                 }
2159             } else {
2160                 userList_remove(&curr_opers, user);
2161             }
2162             break;
2163         case 'O': do_user_mode(FLAGS_LOCOP); break;
2164         case 'i': do_user_mode(FLAGS_INVISIBLE);
2165             if (add)
2166                 invis_clients++;
2167             else
2168                 invis_clients--;
2169             break;
2170         case 'w': do_user_mode(FLAGS_WALLOP); break;
2171         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2172         case 'd': do_user_mode(FLAGS_DEAF); break;
2173         case 'k': do_user_mode(FLAGS_SERVICE); break;
2174         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2175         // sethost - reed/apples
2176         // case 'h': do_user_mode(FLAGS_HELPER); break;
2177         // I check if there's an 'h' in the first part, and if there,
2178         // then everything after the space becomes their new host.
2179         case 'h': do_user_mode(FLAGS_SETHOST);
2180             if (*word) {
2181                 char sethost[MAXLEN];
2182                 unsigned int ii;
2183                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2184                     sethost[ii++] = *word++;
2185                 sethost[ii] = 0;
2186                 while (*word == ' ')
2187                     word++;
2188                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2189             }
2190             break;
2191         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2192         case 'r':
2193             if (*word) {
2194                 char tag[MAXLEN];
2195                 unsigned int ii;
2196                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2197                     tag[ii++] = *word++;
2198                 tag[ii] = 0;
2199                 while (*word == ' ')
2200                     word++;
2201                 call_account_func(user, tag);
2202             }
2203             break;
2204         case 'f':
2205             if (*word) {
2206                 char host[MAXLEN];
2207                 unsigned int ii;
2208                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2209                     host[ii++] = *word++;
2210                 host[ii] = 0;
2211                 while (*word == ' ')
2212                     word++;
2213                 assign_fakehost(user, host, 0);
2214             }
2215             break;
2216         }
2217 #undef do_user_mode
2218     }
2219 }
2220
2221 struct mod_chanmode *
2222 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2223 {
2224     struct mod_chanmode *change;
2225     unsigned int ii, in_arg, ch_arg, add;
2226
2227     if (argc == 0)
2228         return NULL;
2229     if (!(change = mod_chanmode_alloc(argc - 1)))
2230         return NULL;
2231
2232     for (ii = ch_arg = 0, in_arg = add = 1;
2233          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2234          ++ii) {
2235         switch (modes[0][ii]) {
2236         case '+':
2237             add = 1;
2238             break;
2239         case '-':
2240             add = 0;
2241             break;
2242 #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)
2243         case 'C': do_chan_mode(MODE_NOCTCPS); break;
2244         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2245         case 'c': do_chan_mode(MODE_NOCOLORS); break;
2246         case 'i': do_chan_mode(MODE_INVITEONLY); break;
2247         case 'm': do_chan_mode(MODE_MODERATED); break;
2248         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2249         case 'p': do_chan_mode(MODE_PRIVATE); break;
2250         case 'r': do_chan_mode(MODE_REGONLY); break;
2251         case 's': do_chan_mode(MODE_SECRET); break;
2252         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2253         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2254         case 'M': do_chan_mode(MODE_MODUNREG); break;
2255         case 'N': do_chan_mode(MODE_NONOTICE); break;
2256         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2257         case 'T': do_chan_mode(MODE_NOAMSG); break;
2258         case 'O': do_chan_mode(MODE_OPERSONLY); break;
2259         case 'Z': do_chan_mode(MODE_SSLONLY); break;
2260         case 'L': do_chan_mode(MODE_HIDEMODE); break;
2261         case 'z':
2262           if (!(flags & MCP_REGISTERED)) {
2263            do_chan_mode(MODE_REGISTERED);
2264           } else {
2265            mod_chanmode_free(change);
2266            return NULL;
2267           }
2268           break;
2269 #undef do_chan_mode
2270         case 'l':
2271             if (add) {
2272                 if (in_arg >= argc)
2273                     goto error;
2274                 change->modes_set |= MODE_LIMIT;
2275                 change->new_limit = atoi(modes[in_arg++]);
2276             } else {
2277                 change->modes_set &= ~MODE_LIMIT;
2278                 change->modes_clear |= MODE_LIMIT;
2279             }
2280             break;
2281         case 'k':
2282             if (add) {
2283                 if (in_arg >= argc)
2284                     goto error;
2285                 change->modes_set |= MODE_KEY;
2286                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2287             } else {
2288                 change->modes_clear |= MODE_KEY;
2289                 if (!(flags & MCP_KEY_FREE)) {
2290                     if (in_arg >= argc)
2291                         goto error;
2292                     in_arg++;
2293                 }
2294             }
2295             break;
2296         case 'b':
2297             if (!(flags & MCP_ALLOW_OVB))
2298                 goto error;
2299             if (in_arg >= argc)
2300                 goto error;
2301             change->args[ch_arg].mode = MODE_BAN;
2302             if (!add)
2303                 change->args[ch_arg].mode |= MODE_REMOVE;
2304             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2305             break;
2306         case 'e':
2307             if (!(flags & MCP_ALLOW_OVB))
2308                 goto error;
2309             if (in_arg >= argc)
2310                 goto error;
2311             change->args[ch_arg].mode = MODE_EXEMPT;
2312             if (!add)
2313                 change->args[ch_arg].mode |= MODE_REMOVE;
2314             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2315             break;
2316         case 'o': case 'h': case 'v':
2317         {
2318             struct userNode *victim;
2319             if (!(flags & MCP_ALLOW_OVB))
2320                 goto error;
2321             if (in_arg >= argc)
2322                 goto error;
2323
2324             if (modes[0][ii] == 'o')
2325                 change->args[ch_arg].mode = MODE_CHANOP;
2326             else if (modes[0][ii] == 'h')
2327                 change->args[ch_arg].mode = MODE_HALFOP;
2328             else if (modes[0][ii] == 'v')
2329                 change->args[ch_arg].mode = MODE_VOICE;
2330
2331             if (!add)
2332                 change->args[ch_arg].mode |= MODE_REMOVE;
2333             if (flags & MCP_FROM_SERVER)
2334                 victim = GetUserN(modes[in_arg++]);
2335             else
2336                 victim = GetUserH(modes[in_arg++]);
2337             if (!victim)
2338                 continue;
2339             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2340                 ch_arg++;
2341             break;
2342         }
2343         default:
2344             if (!(flags & MCP_FROM_SERVER))
2345                 goto error;
2346             break;
2347         }
2348     }
2349     change->argc = ch_arg; /* in case any turned out to be ignored */
2350     if (change->modes_set & MODE_SECRET) {
2351         change->modes_set &= ~(MODE_PRIVATE);
2352         change->modes_clear |= MODE_PRIVATE;
2353     } else if (change->modes_set & MODE_PRIVATE) {
2354         change->modes_set &= ~(MODE_SECRET);
2355         change->modes_clear |= MODE_SECRET;
2356     }
2357     return change;
2358   error:
2359     mod_chanmode_free(change);
2360     return NULL;
2361 }
2362
2363 struct chanmode_buffer {
2364     char modes[MAXLEN];
2365     char args[MAXLEN];
2366     struct chanNode *channel;
2367     struct userNode *actor;
2368     unsigned int modes_used;
2369     unsigned int args_used;
2370     size_t chname_len;
2371     unsigned int is_add : 1;
2372     unsigned int is_chanop : 1;
2373 };
2374
2375 static void
2376 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2377 {
2378     size_t arg_len = strlen(arg);
2379     if (buf->modes_used > (MAXMODEPARAMS) ||
2380         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2381         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2382         buf->modes[buf->modes_used + buf->args_used] = '\0';
2383         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2384         buf->modes[0] = buf->is_add ? '+' : '-';
2385         buf->modes_used = 1;
2386         buf->args_used = 0;
2387     }
2388     buf->modes[buf->modes_used++] = ch;
2389     buf->args[buf->args_used++] = ' ';
2390     memcpy(buf->args + buf->args_used, arg, arg_len);
2391     buf->args_used += arg_len;
2392 }
2393
2394 void
2395 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2396 {
2397     struct chanmode_buffer chbuf;
2398     unsigned int arg;
2399     struct modeNode *mn;
2400     char int_buff[32], mode = '\0';
2401
2402     assert(change->argc <= change->alloc_argc);
2403     memset(&chbuf, 0, sizeof(chbuf));
2404     chbuf.channel = channel;
2405     chbuf.actor = who;
2406     chbuf.chname_len = strlen(channel->name);
2407
2408     mn = GetUserMode(channel, who);
2409     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2410         chbuf.is_chanop = 1;
2411
2412     /* First remove modes */
2413     chbuf.is_add = 0;
2414     if (change->modes_clear) {
2415         if (mode != '-')
2416             chbuf.modes[chbuf.modes_used++] = mode = '-';
2417 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2418         DO_MODE_CHAR(PRIVATE, 'p');
2419         DO_MODE_CHAR(SECRET, 's');
2420         DO_MODE_CHAR(MODERATED, 'm');
2421         DO_MODE_CHAR(TOPICLIMIT, 't');
2422         DO_MODE_CHAR(INVITEONLY, 'i');
2423         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2424         DO_MODE_CHAR(LIMIT, 'l');
2425         DO_MODE_CHAR(DELAYJOINS, 'D');
2426         DO_MODE_CHAR(REGONLY, 'r');
2427         DO_MODE_CHAR(NOCOLORS, 'c');
2428         DO_MODE_CHAR(NOCTCPS, 'C');
2429         DO_MODE_CHAR(STRIPCOLOR, 'S');
2430         DO_MODE_CHAR(MODUNREG, 'M');
2431         DO_MODE_CHAR(NONOTICE, 'N');
2432         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2433         DO_MODE_CHAR(NOAMSG, 'T');
2434         DO_MODE_CHAR(OPERSONLY, 'O');
2435         DO_MODE_CHAR(REGISTERED, 'z');
2436         DO_MODE_CHAR(SSLONLY, 'Z');
2437         DO_MODE_CHAR(HIDEMODE, 'L');
2438 #undef DO_MODE_CHAR
2439         if (change->modes_clear & channel->modes & MODE_KEY)
2440             mod_chanmode_append(&chbuf, 'k', channel->key);
2441     }
2442     for (arg = 0; arg < change->argc; ++arg) {
2443         if (!(change->args[arg].mode & MODE_REMOVE))
2444             continue;
2445         if (mode != '-')
2446             chbuf.modes[chbuf.modes_used++] = mode = '-';
2447         switch (change->args[arg].mode & ~MODE_REMOVE) {
2448         case MODE_BAN:
2449             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2450             break;
2451         case MODE_EXEMPT:
2452             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2453             break;
2454         default:
2455             if (change->args[arg].mode & MODE_CHANOP)
2456                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2457             if (change->args[arg].mode & MODE_HALFOP)
2458                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2459             if (change->args[arg].mode & MODE_VOICE)
2460                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2461             break;
2462         }
2463     }
2464
2465     /* Then set them */
2466     chbuf.is_add = 1;
2467     if (change->modes_set) {
2468         if (mode != '+')
2469             chbuf.modes[chbuf.modes_used++] = mode = '+';
2470 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2471         DO_MODE_CHAR(PRIVATE, 'p');
2472         DO_MODE_CHAR(SECRET, 's');
2473         DO_MODE_CHAR(MODERATED, 'm');
2474         DO_MODE_CHAR(TOPICLIMIT, 't');
2475         DO_MODE_CHAR(INVITEONLY, 'i');
2476         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2477         DO_MODE_CHAR(DELAYJOINS, 'D');
2478         DO_MODE_CHAR(REGONLY, 'r');
2479         DO_MODE_CHAR(NOCOLORS, 'c');
2480         DO_MODE_CHAR(NOCTCPS, 'C');
2481         DO_MODE_CHAR(STRIPCOLOR, 'S');
2482         DO_MODE_CHAR(MODUNREG, 'M');
2483         DO_MODE_CHAR(NONOTICE, 'N');
2484         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2485         DO_MODE_CHAR(NOAMSG, 'T');
2486         DO_MODE_CHAR(OPERSONLY, 'O');
2487         DO_MODE_CHAR(REGISTERED, 'z');
2488         DO_MODE_CHAR(SSLONLY, 'Z');
2489         DO_MODE_CHAR(HIDEMODE, 'L');
2490 #undef DO_MODE_CHAR
2491         if(change->modes_set & MODE_KEY)
2492             mod_chanmode_append(&chbuf, 'k', change->new_key);
2493         if(change->modes_set & MODE_LIMIT) {
2494             sprintf(int_buff, "%d", change->new_limit);
2495             mod_chanmode_append(&chbuf, 'l', int_buff);
2496         }
2497     }
2498     for (arg = 0; arg < change->argc; ++arg) {
2499         if (change->args[arg].mode & MODE_REMOVE)
2500             continue;
2501         if (mode != '+')
2502             chbuf.modes[chbuf.modes_used++] = mode = '+';
2503         switch (change->args[arg].mode) {
2504         case MODE_BAN:
2505             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2506             break;
2507         case MODE_EXEMPT:
2508             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2509             break;
2510         default:
2511             if (change->args[arg].mode & MODE_CHANOP)
2512                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2513             if (change->args[arg].mode & MODE_HALFOP)
2514                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2515             if (change->args[arg].mode & MODE_VOICE)
2516                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2517             break;
2518         }
2519     }
2520
2521     /* Flush the buffer and apply changes locally */
2522     if (chbuf.modes_used > 0) {
2523         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2524         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2525         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2526     }
2527     mod_chanmode_apply(who, channel, change);
2528 }
2529
2530 char *
2531 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2532 {
2533     unsigned int used = 0;
2534     assert(change->argc <= change->alloc_argc);
2535     if (change->modes_clear) {
2536         outbuff[used++] = '-';
2537 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2538         DO_MODE_CHAR(PRIVATE, 'p');
2539         DO_MODE_CHAR(SECRET, 's');
2540         DO_MODE_CHAR(MODERATED, 'm');
2541         DO_MODE_CHAR(TOPICLIMIT, 't');
2542         DO_MODE_CHAR(INVITEONLY, 'i');
2543         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2544         DO_MODE_CHAR(LIMIT, 'l');
2545         DO_MODE_CHAR(KEY, 'k');
2546         DO_MODE_CHAR(DELAYJOINS, 'D');
2547         DO_MODE_CHAR(REGONLY, 'r');
2548         DO_MODE_CHAR(NOCOLORS, 'c');
2549         DO_MODE_CHAR(NOCTCPS, 'C');
2550         DO_MODE_CHAR(STRIPCOLOR, 'S');
2551         DO_MODE_CHAR(MODUNREG, 'M');
2552         DO_MODE_CHAR(NONOTICE, 'N');
2553         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2554         DO_MODE_CHAR(NOAMSG, 'T');
2555         DO_MODE_CHAR(OPERSONLY, 'O');
2556         DO_MODE_CHAR(REGISTERED, 'z');
2557         DO_MODE_CHAR(SSLONLY, 'Z');
2558         DO_MODE_CHAR(HIDEMODE, 'L');
2559 #undef DO_MODE_CHAR
2560     }
2561     if (change->modes_set) {
2562         outbuff[used++] = '+';
2563 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2564         DO_MODE_CHAR(PRIVATE, 'p');
2565         DO_MODE_CHAR(SECRET, 's');
2566         DO_MODE_CHAR(MODERATED, 'm');
2567         DO_MODE_CHAR(TOPICLIMIT, 't');
2568         DO_MODE_CHAR(INVITEONLY, 'i');
2569         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2570         DO_MODE_CHAR(DELAYJOINS, 'D');
2571         DO_MODE_CHAR(REGONLY, 'r');
2572         DO_MODE_CHAR(NOCOLORS, 'c');
2573         DO_MODE_CHAR(NOCTCPS, 'C');
2574         DO_MODE_CHAR(STRIPCOLOR, 'S');
2575         DO_MODE_CHAR(MODUNREG, 'M');
2576         DO_MODE_CHAR(NONOTICE, 'N');
2577         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2578         DO_MODE_CHAR(NOAMSG, 'T');
2579         DO_MODE_CHAR(OPERSONLY, 'O');
2580         DO_MODE_CHAR(REGISTERED, 'z');
2581         DO_MODE_CHAR(SSLONLY, 'Z');
2582         DO_MODE_CHAR(HIDEMODE, 'L');
2583 #undef DO_MODE_CHAR
2584         switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2585         case MODE_KEY|MODE_LIMIT:
2586             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2587             break;
2588         case MODE_KEY:
2589             used += sprintf(outbuff+used, "k %s", change->new_key);
2590             break;
2591         case MODE_LIMIT:
2592             used += sprintf(outbuff+used, "l %d", change->new_limit);
2593             break;
2594         }
2595     }
2596     outbuff[used] = 0;
2597     return outbuff;
2598 }
2599
2600 static int
2601 clear_chanmode(struct chanNode *channel, const char *modes)
2602 {
2603     unsigned int remove;
2604
2605     for (remove = 0; *modes; modes++) {
2606         switch (*modes) {
2607         case 'o': remove |= MODE_CHANOP; break;
2608         case 'h': remove |= MODE_HALFOP; break;
2609         case 'v': remove |= MODE_VOICE; break;
2610         case 'p': remove |= MODE_PRIVATE; break;
2611         case 's': remove |= MODE_SECRET; break;
2612         case 'm': remove |= MODE_MODERATED; break;
2613         case 't': remove |= MODE_TOPICLIMIT; break;
2614         case 'i': remove |= MODE_INVITEONLY; break;
2615         case 'n': remove |= MODE_NOPRIVMSGS; break;
2616         case 'k':
2617             remove |= MODE_KEY;
2618             channel->key[0] = '\0';
2619             break;
2620         case 'l':
2621             remove |= MODE_LIMIT;
2622             channel->limit = 0;
2623             break;
2624         case 'b': remove |= MODE_BAN; break;
2625         case 'e': remove |= MODE_EXEMPT; break;
2626         case 'D': remove |= MODE_DELAYJOINS; break;
2627         case 'r': remove |= MODE_REGONLY; break;
2628         case 'c': remove |= MODE_NOCOLORS; break;
2629         case 'C': remove |= MODE_NOCTCPS; break;
2630         case 'S': remove |= MODE_STRIPCOLOR; break;
2631         case 'M': remove |= MODE_MODUNREG; break;
2632         case 'N': remove |= MODE_NONOTICE; break;
2633         case 'Q': remove |= MODE_NOQUITMSGS; break;
2634         case 'T': remove |= MODE_NOAMSG; break;
2635         case 'O': remove |= MODE_OPERSONLY; break;
2636         case 'z': remove |= MODE_REGISTERED; break;
2637         case 'Z': remove |= MODE_SSLONLY; break;
2638         case 'L': remove |= MODE_HIDEMODE; break;
2639         }
2640     }
2641
2642     if (!remove)
2643         return 1;
2644
2645     /* Remove simple modes. */
2646     channel->modes &= ~remove;
2647
2648     /* If removing bans, kill 'em all. */
2649     if ((remove & MODE_BAN) && channel->banlist.used) {
2650         unsigned int i;
2651         for (i=0; i<channel->banlist.used; i++)
2652             free(channel->banlist.list[i]);
2653         channel->banlist.used = 0;
2654     }
2655
2656     /* If removing exempts, kill 'em all. */
2657     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2658         unsigned int i;
2659         for (i=0; i<channel->exemptlist.used; i++)
2660             free(channel->exemptlist.list[i]);
2661         channel->exemptlist.used = 0;
2662     }
2663
2664     /* Remove member modes. */
2665     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2666         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2667         unsigned int i;
2668
2669         for (i = 0; i < channel->members.used; i++)
2670             channel->members.list[i]->modes &= mask;
2671     }
2672
2673     return 1;
2674 }
2675
2676 void
2677 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2678 {
2679     unsigned int numeric = user->num_local;
2680     if (numeric >= num_privmsg_funcs) {
2681         int newnum = numeric + 8;
2682         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2683         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2684         num_privmsg_funcs = newnum;
2685     }
2686     if (privmsg_funcs[numeric])
2687         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2688     privmsg_funcs[numeric] = handler;
2689 }
2690
2691 void
2692 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2693 {
2694     unsigned int x;
2695
2696     if (!user || handler)
2697       return; /* this really only works with users */
2698
2699     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2700
2701     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2702        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2703
2704     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2705     num_privmsg_funcs--;
2706 }
2707
2708
2709 void
2710 reg_notice_func(struct userNode *user, privmsg_func_t handler)
2711 {
2712     unsigned int numeric = user->num_local;
2713     if (numeric >= num_notice_funcs) {
2714         int newnum = numeric + 8;
2715         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2716         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2717         num_notice_funcs = newnum;
2718     }
2719     if (notice_funcs[numeric])
2720         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2721     notice_funcs[numeric] = handler;
2722 }
2723
2724 void
2725 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2726 {
2727     unsigned int x;
2728
2729     if (!user || handler)
2730           return; /* this really only works with users */
2731
2732     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2733
2734     for (x = user->num_local+1; x < num_notice_funcs; x++)
2735        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2736
2737     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2738     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2739     num_notice_funcs--;
2740 }
2741
2742 void
2743 reg_oper_func(oper_func_t handler)
2744 {
2745     if (of_used == of_size) {
2746         if (of_size) {
2747             of_size <<= 1;
2748             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2749         } else {
2750             of_size = 8;
2751             of_list = malloc(of_size*sizeof(oper_func_t));
2752         }
2753     }
2754     of_list[of_used++] = handler;
2755 }
2756
2757 static void
2758 call_oper_funcs(struct userNode *user)
2759 {
2760     unsigned int n;
2761     if (IsLocal(user))
2762         return;
2763     for (n=0; n<of_used; n++)
2764         of_list[n](user);
2765 }
2766
2767 static void
2768 send_burst(void)
2769 {
2770     unsigned int i, hop, max_hop=1;
2771     dict_iterator_t it;
2772
2773     /* burst (juped) servers, closest first (except self, which is sent already) */
2774     for (i=0; i<ArrayLength(servers_num); i++)
2775         if (servers_num[i] && servers_num[i]->hops > max_hop)
2776             max_hop = servers_num[i]->hops;
2777     for (hop=1; hop<=max_hop; hop++) {
2778         for (i=0;i<ArrayLength(servers_num);i++) {
2779             if (servers_num[i]
2780                 && (servers_num[i]->hops == hop)
2781                 && (servers_num[i] != self->uplink))
2782                 irc_server(servers_num[i]);
2783         }
2784     }
2785
2786     /* burst local nicks */
2787     for (i=0; i<=self->num_mask; i++)
2788         if (self->users[i])
2789             irc_user(self->users[i]);
2790
2791     /* build dict of unbursted channel names (just copy existing channels) */
2792     unbursted_channels = dict_new();
2793     for (it = dict_first(channels); it; it = iter_next(it))
2794         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2795 }