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  * x3 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 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "nickserv.h"
  22 #include "chanserv.h"
  23 #include "hash.h"
  24 #include "helpfile.h"
  25 #include "hosthiding.h"
  26 #include "proto-common.c"
  27 #include "opserv.h"
  28
  29 /* Full commands. */
  30 #define CMD_ACCOUNT             "ACCOUNT"
  31 #define CMD_ADMIN               "ADMIN"
  32 #define CMD_ALIST               "ALIST"
  33 #define CMD_ASLL                "ASLL"
  34 #define CMD_AWAY                "AWAY"
  35 #define CMD_BURST               "BURST"
  36 #define CMD_CLEARMODE           "CLEARMODE"
  37 #define CMD_CLOSE               "CLOSE"
  38 #define CMD_CNOTICE             "CNOTICE"
  39 #define CMD_CONNECT             "CONNECT"
  40 #define CMD_CPRIVMSG            "CPRIVMSG"
  41 #define CMD_CREATE              "CREATE"
  42 #define CMD_DESTRUCT            "DESTRUCT"
  43 #define CMD_DESYNCH             "DESYNCH"
  44 #define CMD_DIE                 "DIE"
  45 #define CMD_DNS                 "DNS"
  46 #define CMD_EOB                 "END_OF_BURST"
  47 #define CMD_EOB_ACK             "EOB_ACK"
  48 #define CMD_ERROR               "ERROR"
  49 #define CMD_FAKEHOST            "FAKE"
  50 #define CMD_GET                 "GET"
  51 #define CMD_GLINE               "GLINE"
  52 #define CMD_HASH                "HASH"
  53 #define CMD_HELP                "HELP"
  54 #define CMD_INFO                "INFO"
  55 #define CMD_INVITE              "INVITE"
  56 #define CMD_ISON                "ISON"
  57 #define CMD_JOIN                "JOIN"
  58 #define CMD_JUPE                "JUPE"
  59 #define CMD_KICK                "KICK"
  60 #define CMD_KILL                "KILL"
  61 #define CMD_LINKS               "LINKS"
  62 #define CMD_LIST                "LIST"
  63 #define CMD_LUSERS              "LUSERS"
  64 #define CMD_MAP                 "MAP"
  65 #define CMD_MARK                "MARK"
  66 #define CMD_MODE                "MODE"
  67 #define CMD_MOTD                "MOTD"
  68 #define CMD_NAMES               "NAMES"
  69 #define CMD_NICK                "NICK"
  70 #define CMD_NOTICE              "NOTICE"
  71 #define CMD_OPER                "OPER"
  72 #define CMD_OPMODE              "OPMODE"
  73 #define CMD_PART                "PART"
  74 #define CMD_PASS                "PASS"
  75 #define CMD_PING                "PING"
  76 #define CMD_PONG                "PONG"
  77 #define CMD_POST                "POST"
  78 #define CMD_PRIVMSG             "PRIVMSG"
  79 #define CMD_PRIVS               "PRIVS"
  80 #define CMD_PROTO               "PROTO"
  81 #define CMD_QUIT                "QUIT"
  82 #define CMD_REHASH              "REHASH"
  83 #define CMD_RESET               "RESET"
  84 #define CMD_RESTART             "RESTART"
  85 #define CMD_RPING               "RPING"
  86 #define CMD_RPONG               "RPONG"
  87 #define CMD_SERVER              "SERVER"
  88 #define CMD_SERVLIST            "SERVLIST"
  89 #define CMD_SERVSET             "SERVSET"
  90 #define CMD_SET                 "SET"
  91 #define CMD_SETTIME             "SETTIME"
  92 #define CMD_SHUN                "SHUN"
  93 #define CMD_SILENCE             "SILENCE"
  94 #define CMD_SQUERY              "SQUERY"
  95 #define CMD_SQUIT               "SQUIT"
  96 #define CMD_STATS               "STATS"
  97 #define CMD_SVSJOIN             "SVSJOIN"
  98 #define CMD_SVSNICK             "SVSNICK"
  99 #define CMD_SVSPART             "SVSPART"
 100 #define CMD_SWHOIS              "SWHOIS"
 101 #define CMD_TIME                "TIME"
 102 #define CMD_TOPIC               "TOPIC"
 103 #define CMD_TRACE               "TRACE"
 104 #define CMD_UPING               "UPING"
 105 #define CMD_USER                "USER"
 106 #define CMD_USERHOST            "USERHOST"
 107 #define CMD_USERIP              "USERIP"
 108 #define CMD_VERSION             "VERSION"
 109 #define CMD_WALLCHOPS           "WALLCHOPS"
 110 #define CMD_WALLOPS             "WALLOPS"
 111 #define CMD_WALLHOPS            "WALLHOPS"
 112 #define CMD_WALLUSERS           "WALLUSERS"
 113 #define CMD_WALLVOICES          "WALLVOICES"
 114 #define CMD_WALLHOPS            "WALLHOPS"
 115 #define CMD_WHO                 "WHO"
 116 #define CMD_WHOIS               "WHOIS"
 117 #define CMD_WHOWAS              "WHOWAS"
 118
 119 /* Tokenized commands. */
 120 #define TOK_ACCOUNT             "AC"
 121 #define TOK_ADMIN               "AD"
 122 #define TOK_ALIST               "AL"
 123 #define TOK_ASLL                "LL"
 124 #define TOK_AWAY                "A"
 125 #define TOK_BURST               "B"
 126 #define TOK_CLEARMODE           "CM"
 127 #define TOK_CLOSE               "CLOSE"
 128 #define TOK_CNOTICE             "CN"
 129 #define TOK_CONNECT             "CO"
 130 #define TOK_CPRIVMSG            "CP"
 131 #define TOK_CREATE              "C"
 132 #define TOK_DESTRUCT            "DE"
 133 #define TOK_DESYNCH             "DS"
 134 #define TOK_DIE                 "DIE"
 135 #define TOK_DNS                 "DNS"
 136 #define TOK_EOB                 "EB"
 137 #define TOK_EOB_ACK             "EA"
 138 #define TOK_ERROR               "Y"
 139 #define TOK_EXEMPT              "EX"
 140 #define TOK_FAKEHOST            "FA"
 141 #define TOK_GET                 "GET"
 142 #define TOK_GLINE               "GL"
 143 #define TOK_HASH                "HASH"
 144 #define TOK_HELP                "HELP"
 145 #define TOK_INFO                "F"
 146 #define TOK_INVITE              "I"
 147 #define TOK_ISON                "ISON"
 148 #define TOK_JOIN                "J"
 149 #define TOK_JUPE                "JU"
 150 #define TOK_KICK                "K"
 151 #define TOK_KILL                "D"
 152 #define TOK_LINKS               "LI"
 153 #define TOK_LIST                "LIST"
 154 #define TOK_LUSERS              "LU"
 155 #define TOK_MAP                 "MAP"
 156 #define TOK_MARK                "MK"
 157 #define TOK_MODE                "M"
 158 #define TOK_MOTD                "MO"
 159 #define TOK_NAMES               "E"
 160 #define TOK_NICK                "N"
 161 #define TOK_NOTICE              "O"
 162 #define TOK_OPER                "OPER"
 163 #define TOK_OPMODE              "OM"
 164 #define TOK_PART                "L"
 165 #define TOK_PASS                "PA"
 166 #define TOK_PING                "G"
 167 #define TOK_PONG                "Z"
 168 #define TOK_POST                "POST"
 169 #define TOK_PRIVMSG             "P"
 170 #define TOK_PRIVS               "PRIVS"
 171 #define TOK_PROTO               "PROTO"
 172 #define TOK_QUIT                "Q"
 173 #define TOK_REHASH              "REHASH"
 174 #define TOK_RESET               "RESET"
 175 #define TOK_RESTART             "RESTART"
 176 #define TOK_RPING               "RI"
 177 #define TOK_RPONG               "RO"
 178 #define TOK_SERVER              "S"
 179 #define TOK_SERVLIST            "SERVSET"
 180 #define TOK_SERVSET             "SERVSET"
 181 #define TOK_SET                 "SET"
 182 #define TOK_SETTIME             "SE"
 183 #define TOK_SHUN                "SU"
 184 #define TOK_SILENCE             "U"
 185 #define TOK_SQUERY              "SQUERY"
 186 #define TOK_SQUIT               "SQ"
 187 #define TOK_STATS               "R"
 188 #define TOK_SVSJOIN             "SJ"
 189 #define TOK_SVSNICK             "SN"
 190 #define TOK_SVSPART             "SP"
 191 #define TOK_SWHOIS              "SW"
 192 #define TOK_TIME                "TI"
 193 #define TOK_TOPIC               "T"
 194 #define TOK_TRACE               "TR"
 195 #define TOK_UPING               "UP"
 196 #define TOK_USER                "USER"
 197 #define TOK_USERHOST            "USERHOST"
 198 #define TOK_USERIP              "USERIP"
 199 #define TOK_VERSION             "V"
 200 #define TOK_WALLCHOPS           "WC"
 201 #define TOK_WALLOPS             "WA"
 202 #define TOK_WALLHOPS            "WH"
 203 #define TOK_WALLUSERS           "WU"
 204 #define TOK_WALLVOICES          "WV"
 205 #define TOK_WALLHOPS            "WH"
 206 #define TOK_WHO                 "H"
 207 #define TOK_WHOIS               "W"
 208 #define TOK_WHOWAS              "X"
 209
 210 /* Protocol messages; aliased to full commands or tokens depending
 211    on compile-time configuration. ircu prefers tokens WITH THE
 212    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 213    tokenized, because clients' (ie. a linking server) commands are
 214    only checked against the full command list.
 215 */
 216 #if defined(ENABLE_TOKENS)
 217 #define TYPE(NAME)              TOK_ ## NAME
 218 #else /* !ENABLE_TOKENS */
 219 #define TYPE(NAME)              CMD_ ## NAME
 220 #endif /* ENABLE_TOKENS */
 221
 222 #define P10_ACCOUNT             TYPE(ACCOUNT)
 223 #define P10_ADMIN               TYPE(ADMIN)
 224 #define P10_ASLL                TYPE(ASLL)
 225 #define P10_AWAY                TYPE(AWAY)
 226 #define P10_BURST               TYPE(BURST)
 227 #define P10_CLEARMODE           TYPE(CLEARMODE)
 228 #define P10_CLOSE               TYPE(CLOSE)
 229 #define P10_CNOTICE             TYPE(CNOTICE)
 230 #define P10_CONNECT             TYPE(CONNECT)
 231 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 232 #define P10_CREATE              TYPE(CREATE)
 233 #define P10_DESTRUCT            TYPE(DESTRUCT)
 234 #define P10_DESYNCH             TYPE(DESYNCH)
 235 #define P10_DIE                 TYPE(DIE)
 236 #define P10_DNS                 TYPE(DNS)
 237 #define P10_EOB                 TYPE(EOB)
 238 #define P10_EOB_ACK             TYPE(EOB_ACK)
 239 #define P10_ERROR               TYPE(ERROR)
 240 #define P10_FAKEHOST            TYPE(FAKEHOST)
 241 #define P10_GET                 TYPE(GET)
 242 #define P10_GLINE               TYPE(GLINE)
 243 #define P10_HASH                TYPE(HASH)
 244 #define P10_HELP                TYPE(HELP)
 245 #define P10_INFO                TYPE(INFO)
 246 #define P10_INVITE              TYPE(INVITE)
 247 #define P10_ISON                TYPE(ISON)
 248 #define P10_JOIN                TYPE(JOIN)
 249 #define P10_JUPE                TYPE(JUPE)
 250 #define P10_KICK                TYPE(KICK)
 251 #define P10_KILL                TYPE(KILL)
 252 #define P10_LINKS               TYPE(LINKS)
 253 #define P10_LIST                TYPE(LIST)
 254 #define P10_LUSERS              TYPE(LUSERS)
 255 #define P10_MAP                 TYPE(MAP)
 256 #define P10_MARK                TYPE(MARK)
 257 #define P10_MODE                TYPE(MODE)
 258 #define P10_MOTD                TYPE(MOTD)
 259 #define P10_NAMES               TYPE(NAMES)
 260 #define P10_NICK                TYPE(NICK)
 261 #define P10_NOTICE              TYPE(NOTICE)
 262 #define P10_OPER                TYPE(OPER)
 263 #define P10_OPMODE              TYPE(OPMODE)
 264 #define P10_PART                TYPE(PART)
 265 #define P10_PASS                CMD_PASS
 266 #define P10_PING                TYPE(PING)
 267 #define P10_PONG                TYPE(PONG)
 268 #define P10_POST                TYPE(POST)
 269 #define P10_PRIVMSG             TYPE(PRIVMSG)
 270 #define P10_PRIVS               TYPE(PRIVS)
 271 #define P10_PROTO               TYPE(PROTO)
 272 #define P10_QUIT                TYPE(QUIT)
 273 #define P10_REHASH              TYPE(REHASH)
 274 #define P10_RESET               TYPE(RESET)
 275 #define P10_RESTART             TYPE(RESTART)
 276 #define P10_RPING               TYPE(RPING)
 277 #define P10_RPONG               TYPE(RPONG)
 278 #define P10_SERVER              CMD_SERVER
 279 #define P10_SERVLIST            TYPE(SERVLIST)
 280 #define P10_SERVSET             TYPE(SERVSET)
 281 #define P10_SET                 TYPE(SET)
 282 #define P10_SETTIME             TYPE(SETTIME)
 283 #define P10_SHUN                TYPE(SHUN)
 284 #define P10_SILENCE             TYPE(SILENCE)
 285 #define P10_SQUERY              TYPE(SQUERY)
 286 #define P10_SQUIT               TYPE(SQUIT)
 287 #define P10_STATS               TYPE(STATS)
 288 #define P10_SVSJOIN             TYPE(SVSJOIN)
 289 #define P10_SVSNICK             TYPE(SVSNICK)
 290 #define P10_SVSPART             TYPE(SVSPART)
 291 #define P10_SWHOIS              TYPE(SWHOIS)
 292 #define P10_TIME                TYPE(TIME)
 293 #define P10_TOPIC               TYPE(TOPIC)
 294 #define P10_TRACE               TYPE(TRACE)
 295 #define P10_UPING               TYPE(UPING)
 296 #define P10_USER                TYPE(USER)
 297 #define P10_USERHOST            TYPE(USERHOST)
 298 #define P10_USERIP              TYPE(USERIP)
 299 #define P10_VERSION             TYPE(VERSION)
 300 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 301 #define P10_WALLOPS             TYPE(WALLOPS)
 302 #define P10_WALLHOPS            TYPE(WALLHOPS)
 303 #define P10_WALLUSERS           TYPE(WALLUSERS)
 304 #define P10_WALLVOICES          TYPE(WALLVOICES)
 305 #define P10_WHO                 TYPE(WHO)
 306 #define P10_WHOIS               TYPE(WHOIS)
 307 #define P10_WHOWAS              TYPE(WHOWAS)
 308 #define P10_EXEMPT              TYPE(EXEMPT)
 309
 310 /* Servers claiming to have a boot or link time before PREHISTORY
 311  * trigger errors to the log.  We hope no server has been running
 312  * constantly since September 1994.  :)
 313  */
 314 #define PREHISTORY 780000000
 315
 316 #define MODELEN                 40 + KEYLEN
 317
 318 static struct server *servers_num[64*64];
 319 static privmsg_func_t *privmsg_funcs;
 320 static unsigned int num_privmsg_funcs;
 321 static privmsg_func_t *notice_funcs;
 322 static unsigned int num_notice_funcs;
 323 static struct dict *unbursted_channels;
 324 static char *his_servername;
 325 static char *his_servercomment;
 326 static int extended_accounts;
 327
 328 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);
 329
 330 extern int off_channel;
 331 extern int DefConLevel;
 332 extern int DefConTimeOut;
 333 extern char *DefConChanModes;
 334
 335 static int parse_oplevel(char *str);
 336
 337 char privbuf[512] = "";
 338
 339 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 340  * server and Y's indentifying the client on that server. */
 341 struct server*
 342 GetServerN(const char *numeric)
 343 {
 344     switch (strlen(numeric)) {
 345     default:
 346         return servers_num[base64toint(numeric, 2)];
 347     case 4:
 348     case 3:
 349     case 1:
 350         return servers_num[base64toint(numeric, 1)];
 351     case 0:
 352         return NULL;
 353     }
 354 }
 355
 356 struct userNode*
 357 GetUserN(const char *numeric) /* using numeric */
 358 {
 359     struct userNode *un;
 360     struct server *s;
 361     int n, slen, ulen;
 362
 363     switch (strlen(numeric)) {
 364     default:
 365         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 366         return NULL;
 367     case 5: slen = 2; ulen = 3; break;
 368     case 4: slen = 1; ulen = 3; break;
 369     case 3: slen = 1; ulen = 2; break;
 370     case 2: case 1: case 0:
 371         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 372         return NULL;
 373     }
 374     if (!(s = servers_num[base64toint(numeric, slen)])) {
 375         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 376         return NULL;
 377     }
 378     n = base64toint(numeric+slen, ulen) & s->num_mask;
 379     if (!(un = s->users[n])) {
 380         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 381     }
 382     return un;
 383 }
 384
 385 extern struct userNode *opserv;
 386 static void
 387 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 388 {
 389     char *cmd;
 390     /* if its a version reply, do an alert check (only alerts with version=something) */
 391     if(bot == opserv) {
 392         if(text[0] == '\001') {
 393             text++;
 394             cmd = mysep(&text, " ");
 395             if(!irccasecmp(cmd, "VERSION")) {
 396                 char *version = mysep(&text, "\n");
 397                 if(!version)
 398                     version = "";
 399                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 400                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 401                 user->version_reply = strdup(version);
 402                 /* TODO: put this in the db */
 403                 if(match_ircglob(version, "WebTV;*"))
 404                     user->no_notice = true; /* webbies cant see notices */
 405             }
 406         }
 407     }
 408 }
 409
 410
 411 static void
 412 privmsg_user_helper(struct userNode *un, void *data)
 413 {
 414     struct privmsg_desc *pd = data;
 415     unsigned int num = un->num_local;
 416     if (!pd->is_notice) {
 417         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 418             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 419         }
 420     } else {
 421         if ((num < num_notice_funcs) && notice_funcs[num]) {
 422             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 423             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 424         }
 425     }
 426 }
 427
 428 /* equiv to user doing /connect server port target */
 429 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 430 {
 431     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 432 }
 433
 434 void
 435 irc_squit_route(struct server *srv, const char *message, ...)
 436 {
 437     va_list arg_list;
 438     char buffer[MAXLEN];
 439     va_start(arg_list, message);
 440     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 441     buffer[MAXLEN-1] = 0;
 442
 443     /* When would we squit ourselves exactly?? -Rubin */
 444     if(srv == self && cManager.uplink->state == CONNECTED ) {
 445         unsigned int i;
 446
 447         /* Quit all clients linked to me. */
 448         for(i = 0; i <= self->num_mask; i++) {
 449             if(!self->users[i])
 450                 continue;
 451             irc_quit(self->users[i], buffer);
 452         }
 453     }
 454
 455     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 456
 457     if(srv == self) {
 458         /* Force a reconnect to the currently selected server. */
 459         cManager.uplink->tries = 0;
 460         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 461         close_socket();
 462     }
 463 }
 464
 465 void
 466 irc_server(struct server *srv)
 467 {
 468     char extranum[COMBO_NUMERIC_LEN+1];
 469
 470     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 471     if (srv == self) {
 472         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s6 :%s",
 473                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 474     } else {
 475         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s6 :%s",
 476                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 477     }
 478 }
 479
 480 static void
 481 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 482 {
 483     if (strlen(input) == 6) {
 484         unsigned int value;
 485         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 486         value = base64toint(input, 6);
 487         if (value)
 488             ip->in6[5] = htons(65535);
 489         ip->in6[6] = htons(value >> 16);
 490         ip->in6[7] = htons(value & 65535);
 491     } else {
 492         unsigned int pos = 0;
 493         do {
 494             if (*input == '_') {
 495                 unsigned int left;
 496                 for (left = (25 - strlen(input)) / 3; left; left--)
 497                     ip->in6[pos++] = 0;
 498                 input++;
 499             } else {
 500                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 501                 input += 3;
 502             }
 503         } while (pos < 8);
 504     }
 505 }
 506
 507 static void
 508 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 509 {
 510     if (!irc_in_addr_is_valid(*ip)) {
 511         strcpy(output, "AAAAAA");
 512     } else if (irc_in_addr_is_ipv4(*ip)) {
 513         unsigned int in4;
 514         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 515         inttobase64(output, in4, 6);
 516         output[6] = '\0';
 517     } else if (irc_in_addr_is_ipv6(*ip)) {
 518         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 519         /* Can start by printing out the leading non-zero parts. */
 520         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 521             inttobase64(output, ntohs(ip->in6[ii]), 3);
 522             output += 3;
 523         }
 524         /* Find the longest run of zeros. */
 525         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 526             if (!ip->in6[ii])
 527                 curr_zeros++;
 528             else if (curr_zeros > max_zeros) {
 529                 max_start = ii - curr_zeros;
 530                 max_zeros = curr_zeros;
 531                 curr_zeros = 0;
 532             }
 533         }
 534         if (curr_zeros > max_zeros) {
 535             max_start = ii - curr_zeros;
 536             max_zeros = curr_zeros;
 537             curr_zeros = 0;
 538         }
 539         /* Print the rest of the address */
 540         for (ii = zero; ii < 8; ) {
 541             if ((ii == max_start) && max_zeros) {
 542                 *output++ = '_';
 543                 ii += max_zeros;
 544             } else {
 545                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 546                 output += 3;
 547             }
 548         }
 549         *output = '\0';
 550     } else {
 551         strcpy(output, "???");
 552     }
 553 }
 554
 555 void
 556 irc_user(struct userNode *user)
 557 {
 558     char b64ip[25];
 559     if (!user)
 560         return;
 561     irc_p10_ntop(b64ip, &user->ip);
 562     if (user->modes) {
 563         int modelen;
 564         char modes[32];
 565
 566         modelen = 0;
 567         if (IsOper(user))
 568             modes[modelen++] = 'o';
 569         if (IsInvisible(user))
 570             modes[modelen++] = 'i';
 571         if (IsWallOp(user))
 572             modes[modelen++] = 'w';
 573         if (IsService(user))
 574             modes[modelen++] = 'k';
 575         if (IsServNotice(user))
 576             modes[modelen++] = 's';
 577         if (IsDeaf(user))
 578             modes[modelen++] = 'd';
 579         if (IsGlobal(user))
 580             modes[modelen++] = 'g';
 581         // sethost - reed/apples
 582         // if (IsHelperIrcu(user))
 583         if (IsSetHost(user))
 584             modes[modelen++] = 'h';
 585         if (IsFakeHost(user))
 586             modes[modelen++] = 'f';
 587         if (IsHiddenHost(user))
 588             modes[modelen++] = 'x';
 589         modes[modelen] = 0;
 590
 591         /* we don't need to put the + in modes because it's in the format string. */
 592         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 593                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 594     } else {
 595         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 596                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 597     }
 598 }
 599
 600 void
 601 irc_rename(struct userNode *user, const char *new_handle)
 602 {
 603     if(extended_accounts)
 604         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 605 }
 606
 607 void
 608 irc_delete(struct userNode *user)
 609 {
 610     if(extended_accounts)
 611         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 612 }
 613
 614 void
 615 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 616 {
 617     if(extended_accounts)
 618         putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 619     else
 620         putsock("%s " P10_ACCOUNT " %s %s %lu", self->numeric, user->numeric, stamp, timestamp);
 621 }
 622
 623 void
 624 irc_fakehost(struct userNode *user, const char *host)
 625 {
 626     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 627 }
 628
 629 void
 630 irc_regnick(UNUSED_ARG(struct userNode *user))
 631 {
 632     /* no operation here */
 633 }
 634
 635 void
 636 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 637 {
 638     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 639 }
 640
 641 void
 642 irc_fetchtopic(struct userNode *from, const char *to)
 643 {
 644     if (!from || !to)
 645         return;
 646     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 647 }
 648
 649 void
 650 irc_squit(struct server *srv, const char *message, const char *service_message)
 651 {
 652     if (!service_message)
 653         service_message = message;
 654
 655     /* Are we leaving the network? */
 656     if (srv == self && cManager.uplink->state == CONNECTED) {
 657         unsigned int i;
 658
 659         /* Quit all clients linked to me. */
 660         for (i = 0; i <= self->num_mask; i++) {
 661             if (!self->users[i])
 662                 continue;
 663             irc_quit(self->users[i], service_message);
 664         }
 665     }
 666
 667     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 668
 669     if (srv == self) {
 670         /* Force a reconnect to the currently selected server. */
 671         cManager.uplink->tries = 0;
 672         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 673         close_socket();
 674     }
 675 }
 676
 677 void
 678 irc_wallchops(struct userNode *from, const char *to, const char *message)
 679 {
 680     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 681 }
 682
 683 void
 684 irc_wallops(const char *format, ...)
 685 {
 686     va_list arg_list;
 687     char buffer[MAXLEN];
 688     va_start(arg_list, format);
 689     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 690     buffer[MAXLEN-1] = 0;
 691     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 692 }
 693
 694
 695 void
 696 irc_notice(struct userNode *from, const char *to, const char *message)
 697 {
 698     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 699 }
 700
 701 void
 702 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 703 {
 704     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 705 }
 706
 707 void
 708 irc_privmsg(struct userNode *from, const char *to, const char *message)
 709 {
 710     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 711 }
 712
 713 void
 714 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 715 {
 716     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 717 }
 718
 719 void
 720 irc_version_user(struct userNode *from, struct userNode *to)
 721 {
 722     irc_privmsg_user(from, to, "\001VERSION\001");
 723 }
 724
 725 void
 726 irc_eob(void)
 727 {
 728     putsock("%s " P10_EOB, self->numeric);
 729 }
 730
 731 void
 732 irc_eob_ack(void)
 733 {
 734     putsock("%s " P10_EOB_ACK, self->numeric);
 735
 736     char *nick;
 737     const char *str;
 738     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 739     nick = strdup(str);
 740
 741     if (nick && (DefConLevel < 5)) {
 742         DefConProcess(GetUserH(nick));
 743
 744         if (DefConTimeOut > 0)
 745             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 746     }
 747 }
 748
 749 void
 750 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 751 {
 752     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 753 }
 754
 755 void
 756 irc_ping(const char *payload)
 757 {
 758     putsock("%s " P10_PING " :%s", self->numeric, payload);
 759 }
 760
 761 void
 762 irc_pong(const char *who, const char *data)
 763 {
 764     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 765 }
 766
 767 void
 768 irc_pong_asll(const char *who, const char *orig_ts)
 769 {
 770     char *delim;
 771     struct timeval orig;
 772     struct timeval now;
 773     int diff;
 774
 775     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 776     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 777     gettimeofday(&now, NULL);
 778     diff = (now.tv_sec - orig.tv_sec) * 1000 + (now.tv_usec - orig.tv_usec) / 1000;
 779     putsock("%s " P10_PONG " %s %s %d " FMT_TIME_T ".%06u", self->numeric, who, orig_ts, diff, now.tv_sec, (unsigned)now.tv_usec);
 780 }
 781
 782 void
 783 irc_pass(const char *passwd)
 784 {
 785     putsock(P10_PASS " :%s", passwd);
 786 }
 787
 788 void
 789 irc_introduce(const char *passwd)
 790 {
 791     void timed_send_ping(void *data);
 792
 793     self->self_burst = self->burst = 1;
 794     irc_pass(passwd);
 795     irc_server(self);
 796     burst_length = 0;
 797     timeq_add(now + ping_freq, timed_send_ping, 0);
 798 }
 799
 800 void
 801 irc_gline(struct server *srv, struct gline *gline, int silent)
 802 {
 803     putsock("%s " P10_GLINE " %s +%s %ld :%s<%s> %s",
 804             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 805 }
 806
 807 void
 808 irc_shun(struct server *srv, struct shun *shun)
 809 {
 810     putsock("%s " P10_SHUN " %s +%s %ld :<%s> %s",
 811             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 812 }
 813
 814 void
 815 irc_settime(const char *srv_name_mask, time_t new_time)
 816 {
 817     ioset_set_time(new_time);
 818     if (!strcmp(srv_name_mask, "*"))
 819         srv_name_mask = "";
 820     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 821 }
 822
 823 void
 824 irc_ungline(const char *mask)
 825 {
 826     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 827 }
 828
 829 void
 830 irc_unshun(const char *mask)
 831 {
 832     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 833 }
 834
 835 static void
 836 irc_burst(struct chanNode *chan)
 837 {
 838     char burst_line[512];
 839     int pos, base_len, len;
 840     struct modeNode *mn;
 841     struct banNode *bn;
 842     struct exemptNode *en;
 843     long last_mode=-1;
 844     unsigned int n;
 845
 846     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 847                        self->numeric, chan->name, chan->timestamp);
 848     len = irc_make_chanmode(chan, burst_line+base_len);
 849     pos = base_len + len;
 850     if (len)
 851         burst_line[pos++] = ' ';
 852
 853     if(chan->members.used < 1)
 854         return; /* dont burst empty channels (created by discrims) */
 855     /* dump the users */
 856     for (n=0; n<chan->members.used; n++) {
 857         mn = chan->members.list[n];
 858         if (pos > 500) {
 859             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 860             putsock("%s", burst_line);
 861             pos = base_len;
 862             last_mode = -1;
 863         }
 864
 865         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 866         pos += strlen(mn->user->numeric);
 867         if (mn->modes && (mn->modes != last_mode)) {
 868             last_mode = mn->modes;
 869             burst_line[pos++] = ':';
 870             if (last_mode & MODE_CHANOP)
 871                 burst_line[pos++] = 'o';
 872             if (last_mode & MODE_HALFOP)
 873                 burst_line[pos++] = 'h';
 874             if (last_mode & MODE_VOICE)
 875                 burst_line[pos++] = 'v';
 876         }
 877         if ((n+1)<chan->members.used)
 878             burst_line[pos++] = ',';
 879     }
 880     if (chan->banlist.used) {
 881         /* dump the bans */
 882         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 883             burst_line[pos-1] = 0;
 884             putsock("%s", burst_line);
 885             pos = base_len;
 886         } else {
 887             burst_line[pos++] = ' ';
 888         }
 889
 890         burst_line[pos++] = ':';
 891         burst_line[pos++] = '%';
 892         base_len = pos;
 893         for (n=0; n<chan->banlist.used; n++) {
 894             bn = chan->banlist.list[n];
 895             len = strlen(bn->ban);
 896             if (pos+len+1 > 510) {
 897                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 898                 putsock("%s", burst_line);
 899                 pos = base_len;
 900             }
 901             memcpy(burst_line+pos, bn->ban, len);
 902             pos += len;
 903             burst_line[pos++] = ' ';
 904         }
 905     }
 906     if (chan->exemptlist.used) {
 907         /* dump the exempt */
 908         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 909             burst_line[pos-1] = 0;
 910             putsock("%s", burst_line);
 911             pos = base_len;
 912         } else {
 913             burst_line[pos++] = ' ';
 914         }
 915
 916         burst_line[pos++] = ' ';
 917         burst_line[pos++] = '~';
 918         burst_line[pos++] = ' ';
 919         base_len = pos;
 920         for (n=0; n<chan->exemptlist.used; n++) {
 921             en = chan->exemptlist.list[n];
 922             len = strlen(en->exempt);
 923             if (pos+len+1 > 510) {
 924                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 925                 putsock("%s", burst_line);
 926                 pos = base_len;
 927             }
 928             memcpy(burst_line+pos, en->exempt, len);
 929             pos += len;
 930             burst_line[pos++] = ' ';
 931         }
 932     }
 933     /* print the last line */
 934     burst_line[pos] = 0;
 935     putsock("%s", burst_line);
 936 }
 937
 938 void
 939 irc_quit(struct userNode *user, const char *message)
 940 {
 941     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 942 }
 943
 944 void
 945 irc_error(const char *to, const char *message)
 946 {
 947     if (to) {
 948         putsock("%s " P10_ERROR " :%s", to, message);
 949     } else {
 950         putsock(":%s " P10_ERROR " :%s", self->name, message);
 951     }
 952 }
 953
 954 void
 955 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 956 {
 957     if (from) {
 958         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 959                 from->numeric, target->numeric, self->name, from->nick, message);
 960     } else {
 961         putsock("%s " P10_KILL " %s :%s (%s)",
 962                 self->numeric, target->numeric, self->name, message);
 963     }
 964 }
 965
 966 void
 967 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 968 {
 969     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 970     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 971             (from ? from->numeric : self->numeric),
 972             target->name, modes, target->timestamp);
 973 }
 974
 975 /* Added to allow services to mode users
 976    2005 - 8 - 10 by Life4Christ
 977 */
 978 void
 979 irc_umode(struct userNode *target, const char *modes)
 980 {
 981     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
 982 }
 983
 984
 985 void
 986 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 987 {
 988     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 989 }
 990
 991 void
 992 irc_silence(struct userNode *who, const char *mask, int add)
 993 {
 994     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
 995 }
 996
 997 void
 998 irc_join(struct userNode *who, struct chanNode *what)
 999 {
1000     if (what->members.used == 1) {
1001         putsock("%s " P10_CREATE " %s %lu",
1002                 who->numeric, what->name, what->timestamp);
1003     } else {
1004         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
1005     }
1006 }
1007
1008 void
1009 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1010 {
1011     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1012 }
1013
1014 void
1015 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1016 {
1017     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1018 }
1019
1020 void
1021 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1022 {
1023     const char *numeric;
1024     struct modeNode *mn = GetUserMode(channel, who);
1025     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1026     putsock("%s " P10_KICK " %s %s :%s",
1027             numeric, channel->name, target->numeric, msg);
1028 }
1029
1030 void
1031 irc_stats(struct userNode *from, struct server *target, char type)
1032 {
1033     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1034 }
1035
1036 void
1037 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1038 {
1039     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1040 }
1041
1042 void
1043 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1044 {
1045     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1046                                          message ? message : "");
1047
1048 }
1049
1050 void
1051 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1052 {
1053     if (reason) {
1054         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1055     } else {
1056         putsock("%s " P10_PART " %s", who->numeric, what->name);
1057     }
1058 }
1059
1060 void
1061 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1062 {
1063
1064    int type = 4;
1065    int host_in_topic = 0;
1066    const char *hstr, *tstr;
1067    char *host, *hostmask;
1068    char shost[MAXLEN];
1069    char sident[MAXLEN];
1070
1071    tstr = conf_get_data("server/type", RECDB_QSTRING);
1072    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1073    if(tstr)
1074      type = atoi(tstr);
1075    else
1076      type = 4;/* default to 040 style topics */
1077
1078    if (hstr) {
1079       if (IsFakeHost(who))
1080           safestrncpy(shost, who->fakehost, sizeof(shost));
1081       else if (IsSetHost(who)) {
1082           hostmask = strdup(who->sethost);
1083           if ((host = (strrchr(hostmask, '@'))))
1084               *host++ = '\0';
1085           else
1086               host = hostmask;
1087
1088           safestrncpy(sident, hostmask, sizeof(shost));
1089           safestrncpy(shost, host, sizeof(shost));
1090       } else
1091           safestrncpy(shost, who->hostname, sizeof(shost));
1092
1093       host_in_topic = atoi(hstr);
1094    }
1095
1096    if (type >= 5) {
1097      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1098              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1099              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1100    } else {
1101      who = service;
1102      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1103    }
1104 }
1105
1106 void
1107 irc_raw(const char *what)
1108 {
1109     putsock("%s", what);
1110 }
1111
1112 void
1113 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1114 {
1115     va_list arg_list;
1116     char buffer[MAXLEN];
1117     va_start(arg_list, format);
1118     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1119     buffer[MAXLEN-1] = 0;
1120     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1121 }
1122
1123 void
1124 irc_mark(struct userNode *user, char *mark)
1125 {
1126     char *host = user->hostname;
1127
1128     /* TODO: Allow mark overwrite. If they are marked, and their fakehost is oldmark.hostname, update it to newmark.hostname so mark can be called multiple times. Probably requires ircd modification also */
1129     if(user->mark)
1130         return;
1131
1132     /* if the mark will put us over the  host length, clip some off the left hand side
1133      * to make room...
1134      */
1135     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1136         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1137     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1138     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1139
1140     /* Save it in the user */
1141     user->mark = strdup(mark);
1142
1143     /* If they are not otherwise marked, mark their host with fakehost */
1144     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1145     {
1146         struct modeNode *mn = NULL;
1147         char fakehost[HOSTLEN];
1148         unsigned int count = 0;
1149         unsigned int n = 0;
1150
1151         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1152         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1153
1154         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1155         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1156
1157         for (n=count=0; n<user->channels.used; n++) {
1158             mn = user->channels.list[n];
1159             if (strlen(mn->channel->name) >= 1) /* Sanity */
1160                 check_bans(user, mn->channel->name);
1161         }
1162     }
1163 }
1164
1165 static void send_burst(void);
1166
1167 static void
1168 change_nicklen(int new_nicklen)
1169 {
1170     unsigned int nn;
1171     char new_nick[NICKLEN+1];
1172     struct userNode *user;
1173
1174     nicklen = new_nicklen;
1175     /* fix up any users we have here */
1176     for (nn=0; nn<=self->num_mask; nn++) {
1177         if (!(user = self->users[nn]))
1178             continue;
1179         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1180         new_nick[nicklen] = 0;
1181         NickChange(user, new_nick, 1);
1182     }
1183 }
1184
1185 static CMD_FUNC(cmd_whois)
1186 {
1187     struct userNode *from;
1188     struct userNode *who;
1189
1190     if (argc < 3)
1191         return 0;
1192     if (!(from = GetUserH(origin))) {
1193         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1194         return 0;
1195     }
1196     if(!(who = GetUserH(argv[2]))) {
1197         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1198         return 1;
1199     }
1200     if (IsHiddenHost(who) && !IsOper(from)) {
1201         /* Just stay quiet. */
1202         return 1;
1203     }
1204     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1205     if (his_servername && his_servercomment)
1206         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1207     else
1208         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1209     if (IsOper(who))
1210         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
1211     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1212     return 1;
1213 }
1214
1215 static CMD_FUNC(cmd_server)
1216 {
1217     struct server *srv;
1218     const char *str;
1219
1220     if (argc < 8)
1221         return 0;
1222     if (self->uplink) {
1223         /* another server introduced us */
1224         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1225         if (!srv)
1226             return 0;
1227         srv->self_burst = argv[5][0] == 'J';
1228         srv->burst = 1;
1229     } else {
1230         /* this must be our uplink */
1231         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1232         if (!srv)
1233             return 0;
1234         srv->self_burst = argv[5][0] == 'J';
1235         srv->burst = 1;
1236         if ((argv[7][0] == '+') && !force_n2k) {
1237             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1238         }
1239         send_burst();
1240     }
1241
1242     /* Fix up our timestamps if necessary. */
1243     if (srv->boot <= PREHISTORY) {
1244         /* Server from the mists of time.. */
1245         if (srv->hops == 1) {
1246             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1247         }
1248     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1249                && enabled_string(str)) {
1250         /* If we have a reliable clock, we just keep our current time. */
1251     } else {
1252         if (srv->boot <= self->boot) {
1253             /* The other server is older than us.  Accept their timestamp.
1254              * Alternately, we are same age, but we accept their time
1255              * since we are linking to them. */
1256             self->boot = srv->boot;
1257             ioset_set_time(srv->link);
1258         }
1259     }
1260     if (srv == self->uplink) {
1261         extern time_t burst_begin;
1262         burst_begin = now;
1263     }
1264     return 1;
1265 }
1266
1267
1268 static CMD_FUNC(cmd_eob)
1269 {
1270     struct server *sender;
1271     dict_iterator_t it;
1272     unsigned int ii;
1273
1274     if (!(sender = GetServerH(origin)))
1275         return 0;
1276     if (sender == self->uplink) {
1277         cManager.uplink->state = CONNECTED;
1278         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1279             irc_burst(iter_data(it));
1280         dict_delete(unbursted_channels);
1281         unbursted_channels = NULL;
1282         irc_eob();
1283         irc_eob_ack();
1284
1285         /* now that we know who our uplink is,
1286          * we can center the routing map and activate auto-routing.
1287          */
1288         //activate_routing(NULL, NULL, NULL);
1289         routing_init();
1290     }
1291     sender->self_burst = 0;
1292     recalc_bursts(sender);
1293     for (ii=0; ii<slf_used; ii++)
1294         slf_list[ii](sender);
1295     /* let auto-routing figure out if we were
1296      * wating on this server to link a child to it */
1297     /* DONT call this if uplink is _US_ */
1298     if(sender->uplink != self)
1299         routing_handle_connect(sender->name, sender->uplink->name);
1300     return 1;
1301 }
1302
1303 static CMD_FUNC(cmd_eob_ack)
1304 {
1305     extern time_t burst_begin;
1306
1307     if (GetServerH(origin) == self->uplink) {
1308         burst_length = now - burst_begin;
1309         self->self_burst = self->burst = 0;
1310     }
1311     cManager.uplink->state = CONNECTED;
1312     return 1;
1313 }
1314
1315 static CMD_FUNC(cmd_rping)
1316 {
1317     struct server *dest;
1318
1319     if (!(dest = GetServerN(argv[1])))
1320         return 0;
1321
1322     if (dest == self)
1323         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1324
1325     return 1;
1326 }
1327
1328 static CMD_FUNC(cmd_ping)
1329 {
1330     struct server *srv;
1331     struct userNode *un;
1332
1333     if (argc > 3)
1334         irc_pong_asll(argv[2], argv[3]);
1335     else if ((srv = GetServerH(origin)))
1336         irc_pong(self->name, srv->numeric);
1337     else if ((un = GetUserH(origin)))
1338         irc_pong(self->name, un->numeric);
1339     else
1340         irc_pong(self->name, origin);
1341
1342     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1343     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1344     timeq_add(now + ping_freq, timed_send_ping, 0);
1345     received_ping();
1346     return 1;
1347 }
1348
1349 static CMD_FUNC(cmd_error_nick)
1350 {
1351     /* Go back to original IRC length .. and try to reconnect :/ */
1352     change_nicklen(9);
1353     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1354     return 1;
1355 }
1356
1357 struct create_desc {
1358     struct userNode *user;
1359     time_t when;
1360 };
1361
1362 static void
1363 join_helper(struct chanNode *chan, void *data)
1364 {
1365     struct create_desc *cd = data;
1366     AddChannelUser(cd->user, chan);
1367 }
1368
1369 static void
1370 create_helper(char *name, void *data)
1371 {
1372     struct create_desc *cd = data;
1373
1374     if (!strcmp(name, "0")) {
1375         while (cd->user->channels.used > 0)
1376             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1377         return;
1378     }
1379
1380     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1381 }
1382
1383 static CMD_FUNC(cmd_create)
1384 {
1385     struct create_desc cd;
1386     struct userNode *user;
1387
1388     if ((argc < 3) || !(user = GetUserH(origin)))
1389         return 0;
1390     cd.user = user;
1391     cd.when = atoi(argv[2]);
1392     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1393     return 1;
1394 }
1395
1396 static CMD_FUNC(cmd_join)
1397 {
1398     struct create_desc cd;
1399
1400     if (!(cd.user = GetUserH(origin)))
1401         return 0;
1402     if (argc < 2)
1403         return 0;
1404     else if (argc < 3)
1405         cd.when = now;
1406     else
1407         cd.when = atoi(argv[2]);
1408     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1409     return 1;
1410 }
1411
1412 static CMD_FUNC(cmd_svsjoin)
1413 {
1414     struct create_desc cd;
1415
1416     if (!(cd.user = GetUserH(argv[1])))
1417         return 0;
1418     if (argc < 3)
1419         return 0;
1420     else if (argc < 4)
1421         cd.when = now;
1422     else
1423         cd.when = atoi(argv[3]);
1424     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1425     return 1;
1426 }
1427
1428 static CMD_FUNC(cmd_pong)
1429 {
1430     if (argc < 3)
1431         return 0;
1432     if (!strcmp(argv[2], self->name)) {
1433         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1434         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1435         timeq_add(now + ping_freq, timed_send_ping, 0);
1436         received_ping();
1437     }
1438     return 1;
1439 }
1440
1441 static CMD_FUNC(cmd_nick)
1442 {
1443     struct userNode *user;
1444     if ((user = GetUserH(origin))) {
1445         /* nick change (since the source is a user numeric) */
1446         if (argc < 2)
1447             return 0;
1448         NickChange(user, argv[1], 1);
1449     } else {
1450         struct server *serv;
1451         struct userNode *nuser;
1452         char modes[MAXLEN];
1453         /* new nick */
1454         if (argc < 9)
1455             return 0;
1456         serv = GetServerH(origin);
1457         if (argc > 9)
1458             unsplit_string(argv+6, argc-9, modes);
1459         else
1460             strcpy(modes, "+");
1461         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1462     }
1463     return 1;
1464 }
1465
1466 static CMD_FUNC(cmd_account)
1467 {
1468     struct userNode *user;
1469     struct server *server;
1470     struct handle_info *hi;
1471
1472     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1473         return 0; /* Origin must be server. */
1474
1475     /* This next line appears to tremple origin.. why? */
1476     user = GetUserN(argv[1]);
1477     if (!user)
1478         return 1; /* A QUIT probably passed the ACCOUNT. */
1479
1480     if(!extended_accounts) /* any need for this function without? */
1481         return 1;
1482
1483     if(!strcmp(argv[2],"C"))
1484     {
1485         if((hi = loc_auth(argv[4], argv[5])))
1486         {
1487             /* Return a AC A */
1488             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1489
1490         }
1491         else
1492         {
1493             /* Return a AC D */
1494             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1495         }
1496         return 1;
1497     }
1498     else if(!strcmp(argv[2],"R"))
1499        call_account_func(user, argv[3]);
1500     else
1501         call_account_func(user, argv[2]); /* For backward compatability */
1502     return 1;
1503 }
1504
1505 static CMD_FUNC(cmd_fakehost)
1506 {
1507     struct userNode *user;
1508
1509     if ((argc < 3) || !origin || !GetServerH(origin))
1510         return 0;
1511     if (!(user = GetUserN(argv[1])))
1512         return 1;
1513     assign_fakehost(user, argv[2], 0);
1514     return 1;
1515 }
1516
1517 static struct {
1518   char        *name;
1519   unsigned int priv;
1520 } privtab[] = {
1521 #define P(priv)         { #priv, PRIV_ ## priv }
1522   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1523   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1524   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1525   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1526   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1527   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1528   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1529   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1530   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),
1531 #undef P
1532   { 0, 0 }
1533 };
1534
1535 char *client_report_privs(struct userNode *client)
1536 {
1537   int i;
1538
1539   privbuf[0] = '\0';
1540   for (i = 0; privtab[i].name; i++) {
1541     if (HasPriv(client, privtab[i].priv)) {
1542       strcat(privbuf, privtab[i].name);
1543       strcat(privbuf, " ");
1544     }
1545   }
1546
1547   privbuf[strlen(privbuf)] = 0;
1548
1549   return privbuf;
1550 }
1551
1552 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1553  int i = 0;
1554  assert(0 != priv);
1555  assert(0 != who);
1556
1557   for (i = 0; privtab[i].name; i++) {
1558     if (0 == strcmp(privtab[i].name, priv)) {
1559       if (what == PRIV_ADD)
1560         GrantPriv(who, privtab[i].priv);
1561       else if (what == PRIV_DEL) {
1562         RevokePriv(who, privtab[i].priv);
1563       }
1564     }
1565   }
1566   return 0;
1567 }
1568
1569 int check_priv(char *priv)
1570 {
1571   int i;
1572
1573   for (i = 0; privtab[i].name; i++) {
1574     if (0 == strcmp(privtab[i].name, priv)) {
1575       return 1;
1576     }
1577   }
1578   return 0;
1579 }
1580
1581 void
1582 irc_privs(struct userNode *target, char *flag, int add)
1583 {
1584     client_modify_priv_by_name(target, flag, add);
1585     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1586 }
1587
1588 static CMD_FUNC(cmd_privs)
1589 {
1590   char *tstr = NULL;
1591   int type = 0;
1592
1593   tstr = conf_get_data("server/type", RECDB_QSTRING);
1594   if(tstr)
1595     type = atoi(tstr);
1596
1597   if (type < 6)
1598     return 1; /* silently ignore */
1599
1600   struct userNode *user = argc > 1 ? GetUserN(argv[1]) : NULL;
1601   char buf[512] = "";
1602   int what = PRIV_ADD;
1603   char *p = 0;
1604   char *tmp;
1605   unsigned int i;
1606
1607   if (argc < 3)
1608     return 0;
1609
1610   if (!user)
1611     return 0;
1612
1613   for (i=1; i<argc; i++) {
1614     strcat(buf, argv[i]);
1615     strcat(buf, " ");
1616   }
1617
1618   for (i = 2; i < argc; i++) {
1619     if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1620     if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1621     for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1622          tmp = x3_strtok(&p, NULL, ",")) {
1623       client_modify_priv_by_name(user, tmp, what);
1624     }
1625   }
1626   return 1;
1627 }
1628
1629 static CMD_FUNC(cmd_burst)
1630 {
1631     extern int rel_age;
1632     char modes[MAXLEN], *members = "";
1633     static char exemptlist[MAXLEN], banlist[MAXLEN];
1634     unsigned int next = 3, res = 1;
1635     int ctype = 0, echeck = 0, bcheck = 0;
1636     struct chanNode *cNode;
1637     struct userNode *un;
1638     struct modeNode *mNode;
1639     long mode;
1640     int oplevel = -1;
1641     char *user, *end, sep;
1642     time_t in_timestamp;
1643     char* parm = NULL;
1644
1645     if (argc < 3)
1646         return 0;
1647     modes[0] = 0;
1648
1649     exemptlist[0] = 0;
1650     banlist[0] = 0;
1651
1652     while (next < argc) {
1653         switch (argv[next][0]) {
1654         case '+': {
1655             const char *pos;
1656             int n_modes;
1657             for (pos=argv[next], n_modes = 1; *pos; pos++)
1658                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1659                     || (*pos == 'U'))
1660                     n_modes++;
1661             unsplit_string(argv+next, n_modes, modes);
1662             next += n_modes;
1663             break;
1664         }
1665         case '%': {
1666             for(parm = mysep(&argv[next], " "); /* parm = first param */
1667                   parm;   /* While param is not null */
1668                   parm = mysep(&argv[next], " ")  /* parm = next param */
1669                )
1670             {
1671               switch (parm[0]) {
1672                 case '%': {
1673                   ctype = 1;
1674                   break;
1675                 }
1676                 case '~': {
1677                   ctype = 2;
1678                   break;
1679                 }
1680                 default: {
1681                   break;
1682                 }
1683               }
1684               if (ctype == 1) {
1685                 if (bcheck == 0) {
1686                   /* strip % char off start of very first ban */
1687                   if (strlen(parm) > 1) {
1688                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1689                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1690                   }
1691                   bcheck = 1;
1692                 } else {
1693                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1694                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1695                 }
1696               } else if (ctype == 2) {
1697                 if (echeck == 0) {
1698                    echeck = 1;
1699                 } else {
1700                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1701                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1702                 }
1703               }
1704             }
1705             next++;
1706             break;
1707         }
1708         default: members = argv[next++]; break;
1709       }
1710     }
1711
1712     in_timestamp = atoi(argv[2]);
1713     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1714         cNode->timestamp = in_timestamp;
1715         dict_remove(unbursted_channels, cNode->name);
1716         irc_burst(cNode);
1717     }
1718     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1719
1720     /* Burst channel members in now. */
1721     for (user = members, sep = *members, mode = 0; sep; user = end) {
1722         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1723         sep = *end++; end[-1] = 0;
1724         if (sep == ':') {
1725             mode = 0;
1726             while ((sep = *end++)) {
1727                 if (sep == 'o') {
1728                     mode |= MODE_CHANOP;
1729                     oplevel = -1;
1730                 } else if (sep == 'h') {
1731                     mode |= MODE_HALFOP;
1732                     oplevel = -1;
1733                 } else if (sep == 'v') {
1734                     mode |= MODE_VOICE;
1735                     oplevel = -1;
1736                 } else if (isdigit(sep)) {
1737                     mode |= MODE_CHANOP;
1738                     if (oplevel >= 0)
1739                         oplevel += parse_oplevel(end);
1740                     else
1741                         oplevel = parse_oplevel(end);
1742                     while (isdigit(*end)) end++;
1743                 } else
1744                     break;
1745             }
1746             if (rel_age < 0)
1747                 mode = 0;
1748         }
1749         if (!(un = GetUserN(user))) {
1750             res = 0;
1751             continue;
1752         }
1753         if ((mNode = AddChannelUser(un, cNode))) {
1754             mNode->modes = mode;
1755             mNode->oplevel = oplevel;
1756         }
1757     }
1758
1759     return res;
1760 }
1761
1762 /* TODO:
1763  * This is a stub that doesn't actually do anything. It should be completed
1764  * so that bans on *!*@markname.* match users as it does in nefarious
1765  */
1766 static CMD_FUNC(cmd_mark)
1767 {
1768     struct userNode *target;
1769     /*
1770      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1771      */
1772
1773     if(argc < 4)
1774         return 0;
1775     if(!strcasecmp(argv[2], "DNSBL")) {
1776         /* DNSBL <modes> */
1777         return 1;
1778     }
1779     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1780         /* DNSBL_DATA name */
1781         target = GetUserH(argv[1]);
1782         if(!target) {
1783             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mark is changing.", argv[1]);
1784             return 0;
1785         }
1786         target->mark = strdup(argv[3]);
1787         return 1;
1788
1789     }
1790     /* unknown type of mark */
1791     return 1;
1792 }
1793
1794 static CMD_FUNC(cmd_mode)
1795 {
1796     struct chanNode *cn;
1797     struct userNode *un;
1798     char *sethost; // sethost - reed/apples
1799     int i; // sethost - reed/apples
1800
1801     if (argc < 3)
1802         return 0;
1803     if (!IsChannelName(argv[1])) {
1804         un = GetUserH(argv[1]);
1805         if (!un) {
1806             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1807             return 0;
1808         }
1809         // sethost - reed/apples
1810         if (argc == 3)
1811         mod_usermode(un, argv[2]);
1812         else {
1813           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1814           i = 0;
1815           while((sethost[i++] = *argv[2]++));
1816           i--;
1817          sethost[i++] = ' ';
1818           while((sethost[i++] = *argv[3]++));
1819           mod_usermode(un, sethost); // sethost - reed/apples
1820         }
1821
1822         return 1;
1823     }
1824
1825     if (!(cn = GetChannel(argv[1]))) {
1826         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1827         return 0;
1828     }
1829     if ((un = GetUserH(origin))) {
1830         struct modeNode *mn;
1831         /* Update idle time for person setting the mode */
1832         if ((mn = GetUserMode(cn, un)))
1833             mn->idle_since = now;
1834     } else {
1835         /* If it came from a server, reset timestamp to re-sync. */
1836         cn->timestamp = atoi(argv[argc-1]);
1837     }
1838
1839     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
1840         const char *str;
1841         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
1842         if (str) {
1843             char modes[MODELEN];
1844             struct userNode *opserv = GetUserH(str);
1845
1846             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
1847             irc_make_chanmode(cn, modes);
1848             irc_mode(opserv, cn, modes);
1849             irc_mode(opserv, cn, DefConChanModes);
1850         }
1851         return 1;
1852     }
1853
1854
1855     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1856 }
1857
1858 static CMD_FUNC(cmd_opmode)
1859 {
1860     struct chanNode *cn;
1861     struct userNode *un;
1862
1863     if (argc < 3)
1864         return 0;
1865
1866     if (!(cn = GetChannel(argv[1]))) {
1867         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1868         return 0;
1869     }
1870     if (!(un = GetUserH(origin))) {
1871         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1872         return 0;
1873     }
1874     if (!IsOper(un)) {
1875         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1876         return 0;
1877     }
1878
1879     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1880 }
1881
1882 static int clear_chanmode(struct chanNode *channel, const char *modes);
1883
1884 static CMD_FUNC(cmd_clearmode)
1885 {
1886     struct chanNode *cn;
1887     struct userNode *un;
1888
1889     if (argc < 3)
1890         return 0;
1891
1892     if (!(cn = GetChannel(argv[1]))) {
1893         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1894         return 0;
1895     }
1896     if (!(un = GetUserH(origin))) {
1897         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1898         return 0;
1899     }
1900     if (!IsOper(un)) {
1901         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1902         return 0;
1903     }
1904
1905     return clear_chanmode(cn, argv[2]);
1906 }
1907
1908 static CMD_FUNC(cmd_topic)
1909 {
1910     struct chanNode *cn;
1911     time_t chan_ts, topic_ts;
1912     struct userNode *user;
1913
1914     if (argc < 3)
1915         return 0;
1916     if (!(cn = GetChannel(argv[1]))) {
1917         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1918         return 0;
1919     }
1920
1921
1922     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
1923         user = GetUserH(origin);
1924         chan_ts = atoi(argv[2]);
1925         topic_ts = atoi(argv[3]);
1926     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
1927         user = GetUserH(strtok(argv[2], "!"));
1928         chan_ts = atoi(argv[3]);
1929         topic_ts = atoi(argv[4]);
1930     } else {                      /* Regular IRCu (No Topic Bursting)*/
1931         user = GetUserH(origin);
1932         chan_ts = cn->timestamp;
1933         topic_ts = now;
1934     }
1935
1936     SetChannelTopic(cn, user, user, argv[argc-1], 0);
1937     cn->topic_time = topic_ts;
1938     return 1;
1939 }
1940
1941 static CMD_FUNC(cmd_num_topic)
1942 {
1943     struct chanNode *cn;
1944
1945     if (!argv[0])
1946         return 0; /* huh? */
1947     if (argv[2]) {
1948         cn = GetChannel(argv[2]);
1949         if (!cn) {
1950             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1951             return 0;
1952         }
1953     } else
1954         return 0;
1955
1956     switch (atoi(argv[0])) {
1957     case 331:
1958         cn->topic_time = 0;
1959         break;  /* no topic */
1960     case 332:
1961         if (argc < 4)
1962             return 0;
1963         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1964         break;
1965     case 333:
1966         if (argc < 5)
1967             return 0;
1968         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1969         cn->topic_time = atoi(argv[4]);
1970         break;
1971     default:
1972         return 0; /* should never happen */
1973     }
1974     return 1;
1975 }
1976
1977 static CMD_FUNC(cmd_num_gline)
1978 {
1979     if (argc < 6)
1980         return 0;
1981     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
1982     return 1;
1983 }
1984
1985 static CMD_FUNC(cmd_num_shun)
1986 {
1987     if (argc < 6)
1988         return 0;
1989     shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1990     return 1;
1991 }
1992
1993 static CMD_FUNC(cmd_quit)
1994 {
1995     struct userNode *user;
1996     if (argc < 2)
1997         return 0;
1998     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1999      * call DelUser unless we have the user in our grasp. */
2000     if ((user = GetUserH(origin)))
2001         DelUser(user, NULL, false, argv[1]);
2002     return 1;
2003 }
2004
2005 static CMD_FUNC(cmd_kill)
2006 {
2007     struct userNode *user;
2008     if (argc < 2)
2009         return 0;
2010     user = GetUserN(argv[1]);
2011     if (!user) {
2012         /* If we get a KILL for a non-existent user, it could be a
2013          * Ghost response to a KILL we sent out earlier.  So we only
2014          * whine if the target is local.
2015          */
2016         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2017             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2018         return 0;
2019     }
2020
2021     if (IsLocal(user) && IsService(user)) {
2022         /* TODO: rate limit this so silly things don't happen. */
2023         ReintroduceUser(user);
2024         return 1;
2025     }
2026
2027     DelUser(user, NULL, false, argv[2]);
2028     return 1;
2029 }
2030
2031 static CMD_FUNC(cmd_part)
2032 {
2033     struct userNode *user;
2034
2035     if (argc < 2)
2036         return 0;
2037     user = GetUserH(origin);
2038     if (!user)
2039         return 0;
2040     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
2041     return 1;
2042 }
2043
2044 static CMD_FUNC(cmd_svspart)
2045 {
2046     struct userNode *user;
2047
2048     if (argc < 3)
2049         return 0;
2050     user = GetUserN(argv[1]);
2051     if (!user)
2052         return 0;
2053     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2054     return 1;
2055 }
2056
2057 static CMD_FUNC(cmd_silence)
2058 {
2059     struct userNode *user;
2060     char *mask;
2061     char *new_mask;
2062     unsigned int i;
2063
2064     if (argc < 2)
2065         return 0;
2066
2067     user = GetUserN(argv[1]);
2068
2069     /* Sanity, go nuts if this happens */
2070     if (!user)
2071         return 0;
2072
2073     /*  We can safely ignore this if a user adding a silence is not
2074      *  ignored. However this brings up a TODO. If a user logs in and
2075      *  they have silences on the IRCd then we need to set them here
2076      *  somehow
2077      */
2078     if (!user->handle_info)
2079         return 1;
2080
2081     mask = argv[2];
2082
2083     if (*mask == '-') {
2084         for (i=0; i<user->handle_info->ignores->used; i++) {
2085             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2086                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2087         }
2088     } else {
2089         for (i=0; i<user->handle_info->ignores->used; i++) {
2090             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2091                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2092         }
2093
2094         new_mask = strdup(mask+1);
2095         string_list_append(user->handle_info->ignores, new_mask);
2096     }
2097     return 1;
2098 }
2099
2100 static CMD_FUNC(cmd_kick)
2101 {
2102     if (argc < 3)
2103         return 0;
2104     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2105     return 1;
2106 }
2107
2108 static CMD_FUNC(cmd_squit)
2109 {
2110     struct server *server;
2111     char *uplink;
2112
2113     if (argc < 4)
2114         return 0;
2115     if (!(server = GetServerH(argv[1])))
2116         return 0;
2117
2118     if (server == self->uplink) {
2119         /* Force a reconnect to the currently selected server. */
2120         cManager.uplink->tries = 0;
2121         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2122         close_socket();
2123         return 1;
2124     }
2125
2126     uplink = strdup(server->uplink->name);
2127     DelServer(server, 0, argv[3]);
2128     /* if its a pingout and pingout connecting is enabled
2129                or its a read error and readerror connecting is enabled
2130                or were doing a "N" and i need to connect that server somewhere */
2131     routing_handle_squit(argv[1], uplink, argv[3]);
2132     free(uplink);
2133     return 1;
2134 }
2135
2136 static CMD_FUNC(cmd_privmsg)
2137 {
2138     struct privmsg_desc pd;
2139     if (argc != 3)
2140         return 0;
2141     pd.user = GetUserH(origin);
2142     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2143         return 1;
2144
2145     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2146         const char *str;
2147         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2148         if (str)
2149             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2150         return 1;
2151     }
2152
2153     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2154         return 1; /* Silently Ignore */
2155
2156     pd.is_notice = 0;
2157     pd.text = argv[2];
2158     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2159
2160     return 1;
2161 }
2162
2163 static CMD_FUNC(cmd_notice)
2164 {
2165     struct privmsg_desc pd;
2166     struct server *srv;
2167     int nuser = 0;
2168
2169     if (argc != 3)
2170         return 0;
2171
2172     pd.user = GetUserH(origin);
2173     if(!pd.user)
2174         nuser = 1;
2175     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2176     }
2177     else {
2178         pd.is_notice = 1;
2179         pd.text = argv[2];
2180         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2181     }
2182
2183     srv = GetServerH(origin);
2184     if(srv) {
2185         char *sargv[MAXNUMPARAMS];
2186         int sargc;
2187
2188         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2189
2190         if(!strcasecmp(sargv[0], "Connect:")) {
2191             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2192             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2193                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2194             }
2195         }
2196         else if(!strcasecmp(sargv[0], "Link")) {
2197             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2198              *
2199              * :Link with laptop.afternet.org cancelled: Connection refused
2200              */
2201             if(!strcasecmp(sargv[3], "cancelled:")) {
2202                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2203             }
2204         }
2205     }
2206     return 1;
2207 }
2208
2209 static CMD_FUNC(cmd_away)
2210 {
2211     struct userNode *uNode;
2212
2213     uNode = GetUserH(origin);
2214     if (!uNode)
2215         return 1;
2216     if (argc < 2)
2217         uNode->modes &= ~FLAGS_AWAY;
2218     else
2219         uNode->modes |= FLAGS_AWAY;
2220     return 1;
2221 }
2222
2223 static CMD_FUNC(cmd_gline)
2224 {
2225     if (argc < 3)
2226         return 0;
2227     if (argv[2][0] == '+') {
2228         if (argc < 5)
2229             return 0;
2230         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2231         return 1;
2232     } else if (argv[2][0] == '-') {
2233         gline_remove(argv[2]+1, 0);
2234         return 1;
2235     } else
2236         return 0;
2237 }
2238
2239 static CMD_FUNC(cmd_shun)
2240 {
2241     if (argc < 3)
2242         return 0;
2243     if (argv[2][0] == '+') {
2244         if (argc < 5)
2245             return 0;
2246         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2247         return 1;
2248     } else if (argv[2][0] == '-') {
2249         shun_remove(argv[2]+1, 0);
2250         return 1;
2251     } else
2252         return 0;
2253 }
2254
2255 static CMD_FUNC(cmd_svsnick)
2256 {
2257     struct userNode *target, *dest;
2258     if ((argc < 4)
2259         || !(target = GetUserN(argv[1]))
2260         || !IsLocal(target)
2261         || (dest = GetUserH(argv[2])))
2262         return 0;
2263     NickChange(target, argv[2], 0);
2264     return 1;
2265 }
2266
2267 static oper_func_t *of_list;
2268 static unsigned int of_size = 0, of_used = 0;
2269
2270 void
2271 free_user(struct userNode *user)
2272 {
2273     free(user->nick);
2274     free(user);
2275 }
2276
2277 static void
2278 parse_cleanup(void)
2279 {
2280     unsigned int nn;
2281     free(of_list);
2282     free(privmsg_funcs);
2283     free(notice_funcs);
2284     free(mcf_list);
2285     dict_delete(irc_func_dict);
2286     for (nn=0; nn<dead_users.used; nn++)
2287         free_user(dead_users.list[nn]);
2288     userList_clean(&dead_users);
2289 }
2290
2291 static void
2292 p10_conf_reload(void) {
2293     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2294 }
2295
2296 static void
2297 remove_unbursted_channel(struct chanNode *cNode) {
2298     if (unbursted_channels)
2299         dict_remove(unbursted_channels, cNode->name);
2300 }
2301
2302 void
2303 init_parse(void)
2304 {
2305     const char *str, *desc;
2306     int numnick, usermask, max_users;
2307     char numer[COMBO_NUMERIC_LEN+1];
2308
2309     /* read config items */
2310     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2311     extended_accounts = str ? enabled_string(str) : 1;
2312     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2313     ping_freq = str ? ParseInterval(str) : 120;
2314     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2315     ping_timeout = str ? ParseInterval(str) : 30;
2316     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2317     force_n2k = str ? enabled_string(str) : 1;
2318     str = conf_get_data("server/numeric", RECDB_QSTRING);
2319     if (!str) {
2320         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2321         exit(1);
2322     }
2323     numnick = atoi(str);
2324     str = conf_get_data("server/max_users", RECDB_QSTRING);
2325     max_users = str ? atoi(str) : 4096;
2326     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2327     usermask--;
2328     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2329         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2330     else
2331         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2332
2333     str = conf_get_data("server/his_servername", RECDB_QSTRING);
2334     his_servername = str ? strdup(str) : NULL;
2335     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2336     his_servercomment = str ? strdup(str) : NULL;
2337
2338     str = conf_get_data("server/hostname", RECDB_QSTRING);
2339     desc = conf_get_data("server/description", RECDB_QSTRING);
2340     if (!str || !desc) {
2341         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2342         exit(1);
2343     }
2344     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2345     conf_register_reload(p10_conf_reload);
2346
2347     irc_func_dict = dict_new();
2348     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2349     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2350     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2351     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2352     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2353     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2354     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2355     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2356     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2357     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2358     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2359     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2360     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2361     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2362     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2363     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2364     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2365     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2366     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2367     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2368     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2369     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2370     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2371     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2372     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2373     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2374     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2375     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2376     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2377     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2378     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2379     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2380     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2381     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2382     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2383     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2384     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2385     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2386     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2387     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2388     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2389     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2390     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2391     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2392     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2393     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2394     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2395     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2396     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2397     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2398     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2399     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2400     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2401     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2402     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2403     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2404     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2405     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2406     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2407     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2408     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2409     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2410     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2411     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2412     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2413     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2414     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2415     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2416     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2417     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2418     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2419     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2420     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2421     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2422
2423     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2424     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2425     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2426     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2427
2428     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2429      * Apparently to obliterate channels from any servers that think they
2430      * exist?
2431      */
2432     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2433     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2434     /* Ignore invites */
2435     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2436     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2437     /* DESYNCH is just informational, so ignore it */
2438     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2439     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2440     /* Ignore channel operator notices. */
2441     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2442     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2443     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2444     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2445     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2446     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2447     /* Ignore opers being silly. */
2448     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2449     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2450     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2451     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2452     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2453     /* Ignore dnsbl exemptions */
2454     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2455     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2456     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2457     /* ignore ALIST for now */
2458     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2459     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2460     /* Ignore remote luser */
2461     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2462     /* We have reliable clock!  Always!  Wraaa! */
2463     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2464     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2465
2466     /* ignore /trace and /motd commands targetted at us */
2467     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2468     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2469
2470     /* handle topics */
2471     dict_insert(irc_func_dict, "331", cmd_num_topic);
2472     dict_insert(irc_func_dict, "332", cmd_num_topic);
2473     dict_insert(irc_func_dict, "333", cmd_num_topic);
2474     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2475     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2476     /* ban list resetting */
2477     /* "stats g" responses */
2478     dict_insert(irc_func_dict, "247", cmd_num_gline);
2479     dict_insert(irc_func_dict, "542", cmd_num_shun);
2480     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2481     /* other numeric responses we might get */
2482     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2483     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2484     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2485     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2486     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2487     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2488     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2489     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2490     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2491
2492     num_privmsg_funcs = 16;
2493     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2494     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2495
2496     num_notice_funcs = 16;
2497     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2498     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2499
2500     userList_init(&dead_users);
2501     reg_del_channel_func(remove_unbursted_channel);
2502     reg_exit_func(parse_cleanup);
2503     // reg_notice_func(opserv, check_ctcp);
2504 }
2505
2506 int
2507 parse_line(char *line, int recursive)
2508 {
2509     char *argv[MAXNUMPARAMS], *origin;
2510     int argc, cmd, res=0;
2511     cmd_func_t *func;
2512
2513     argc = split_line(line, true, MAXNUMPARAMS, argv);
2514     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2515     if (argc > cmd) {
2516         if (cmd) {
2517             if (argv[0][0] == ':') {
2518                 origin = argv[0]+1;
2519             } else if (!argv[0][1] || !argv[0][2]) {
2520                 struct server *sNode = GetServerN(argv[0]);
2521                 origin = sNode ? sNode->name : 0;
2522             } else {
2523                 struct userNode *uNode = GetUserN(argv[0]);
2524                 origin = uNode ? uNode->nick : 0;
2525             }
2526         } else
2527             origin = 0;
2528         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2529             res = func(origin, argc-cmd, argv+cmd);
2530     }
2531     if (!res) {
2532         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2533     } else if (!recursive) {
2534         unsigned int i;
2535         for (i=0; i<dead_users.used; i++)
2536             free_user(dead_users.list[i]);
2537         dead_users.used = 0;
2538     }
2539     return res;
2540 }
2541
2542 static void
2543 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2544 {
2545     char *j, old;
2546
2547     do {
2548         j = target_list;
2549         while (*j != 0 && *j != ',')
2550             j++;
2551         old = *j;
2552         *j = 0;
2553
2554         if (IsChannelName(target_list)
2555             || (target_list[0] == '0' && target_list[1] == '\0')) {
2556             struct chanNode *chan = GetChannel(target_list);
2557
2558             if (chan) {
2559                 if (cf)
2560                     cf(chan, data);
2561             } else {
2562                 if (nc)
2563                     nc(target_list, data);
2564             }
2565         } else {
2566             struct userNode *user;
2567             struct privmsg_desc *pd = data;
2568
2569             pd->is_qualified = 0;
2570             if (*target_list == '@') {
2571                 user = NULL;
2572             } else if (strchr(target_list, '@')) {
2573                 struct server *server;
2574
2575                 pd->is_qualified = 1;
2576                 user = GetUserH(strtok(target_list, "@"));
2577                 server = GetServerH(strtok(NULL, "@"));
2578
2579                 if (user && (user->uplink != server)) {
2580                     /* Don't attempt to index into any arrays
2581                        using a user's numeric on another server. */
2582                     user = NULL;
2583                 }
2584             } else {
2585                 user = GetUserN(target_list);
2586             }
2587
2588             if (user) {
2589                 if (uf)
2590                     uf(user, data);
2591             } else {
2592                 if (nu)
2593                     nu(target_list, data);
2594             }
2595         }
2596         target_list = j+1;
2597     } while (old == ',');
2598 }
2599
2600 static int
2601 get_local_numeric(void)
2602 {
2603     static unsigned int next_numeric = 0;
2604     if (self->clients > self->num_mask)
2605         return -1;
2606     while (self->users[next_numeric])
2607         if (++next_numeric > self->num_mask)
2608             next_numeric = 0;
2609     return next_numeric;
2610 }
2611
2612 static void
2613 make_numeric(struct server *svr, int local_num, char *outbuf)
2614 {
2615     int slen, llen;
2616
2617     if (force_n2k || svr->numeric[1]) {
2618         slen = 2;
2619         llen = 3;
2620     } else {
2621         slen = 1;
2622         llen = (local_num < 64*64) ? 2 : 3;
2623     }
2624     strncpy(outbuf, svr->numeric, slen);
2625     inttobase64(outbuf+slen, local_num, llen);
2626     outbuf[slen+llen] = 0;
2627 }
2628
2629 struct server *
2630 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
2631 {
2632     struct server* sNode;
2633     int slen, mlen;
2634
2635     if ((sNode = GetServerN(numeric))) {
2636         /* This means we're trying to re-add an existant server.
2637          * To be safe, we should forget the previous incarnation.
2638          * (And all its linked servers.)
2639          *
2640          * It usually only happens in replays when the original
2641          * had a ping timeout and the replay didn't (because
2642          * replaying a ping timeout invariably gets things wrong).
2643          */
2644         DelServer(sNode, 0, NULL);
2645     }
2646
2647     switch (strlen(numeric)) {
2648     case 5: slen = 2; mlen = 3; break;
2649     case 4: slen = 1; mlen = 3; break;
2650     case 3: slen = 1; mlen = 2; break;
2651     default:
2652         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2653         return NULL;
2654     }
2655
2656     sNode = calloc(1, sizeof(*sNode));
2657     sNode->uplink = uplink;
2658     safestrncpy(sNode->name, name, sizeof(sNode->name));
2659     sNode->num_mask = base64toint(numeric+slen, mlen);
2660     sNode->hops = hops;
2661     sNode->boot = boot;
2662     sNode->link = link;
2663     strncpy(sNode->numeric, numeric, slen);
2664     safestrncpy(sNode->description, description, sizeof(sNode->description));
2665     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2666     serverList_init(&sNode->children);
2667     if (sNode->uplink) {
2668         /* uplink may be NULL if we're just building ourself */
2669         serverList_append(&sNode->uplink->children, sNode);
2670     }
2671     servers_num[base64toint(numeric, slen)] = sNode;
2672     dict_insert(servers, sNode->name, sNode);
2673     return sNode;
2674 }
2675
2676 void DelServer(struct server* serv, int announce, const char *message)
2677 {
2678     unsigned int i;
2679
2680     /* If we receive an ERROR command before the SERVER
2681      * command a NULL server can be passed */
2682     if (!serv)
2683         return;
2684
2685     /* Hrm, what's the right way to SQUIT some other server?
2686      * (This code is only to handle killing juped servers.) */
2687     if (announce && (serv->uplink == self) && (serv != self->uplink))
2688         irc_squit(serv, message, NULL);
2689
2690     /* must recursively remove servers linked to this one first */
2691     for (i=serv->children.used;i>0;)
2692         if (serv->children.list[--i] != self)
2693             DelServer(serv->children.list[i], false, NULL);
2694
2695     /* clean up server's user hash tables */
2696     for (i=0;i<=serv->num_mask;i++)
2697         if (serv->users[i])
2698             DelUser(serv->users[i], NULL, false, "server delinked");
2699
2700     /* delete server */
2701     if (serv->uplink)
2702         serverList_remove(&serv->uplink->children, serv);
2703     if (serv == self->uplink)
2704         self->uplink = NULL;
2705     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2706     dict_remove(servers, serv->name);
2707     serverList_clean(&serv->children);
2708     free(serv->users);
2709     free(serv);
2710 }
2711
2712 struct userNode *
2713 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
2714 {
2715     char numeric[COMBO_NUMERIC_LEN+1];
2716     int local_num = get_local_numeric();
2717     time_t timestamp = now;
2718     struct userNode *old_user = GetUserH(nick);
2719
2720     if (old_user) {
2721         if (IsLocal(old_user))
2722             return old_user;
2723         timestamp = old_user->timestamp - 1;
2724     }
2725     if (local_num == -1) {
2726         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2727         return 0;
2728     }
2729     if (!hostname)
2730         hostname = self->name;
2731     make_numeric(self, local_num, numeric);
2732     /* TODO: Make these modes part of the conf file */
2733     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
2734 }
2735
2736 struct userNode *
2737 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2738 {
2739     char numeric[COMBO_NUMERIC_LEN+1];
2740     int local_num = get_local_numeric();
2741     time_t timestamp = now;
2742     struct userNode *old_user = GetUserH(nick);
2743
2744     if (old_user) {
2745         if (IsLocal(old_user))
2746             return old_user;
2747         timestamp = old_user->timestamp - 1;
2748     }
2749     if (local_num == -1) {
2750         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2751         return 0;
2752     }
2753     make_numeric(self, local_num, numeric);
2754     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2755 }
2756
2757 int
2758 is_valid_nick(const char *nick) {
2759     unsigned int ii;
2760     /* IRC has some of The Most Fucked-Up ideas about character sets
2761      * in the world.. */
2762     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2763         return 0;
2764     for (ii = 0; nick[ii]; ++ii)
2765         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2766             return 0;
2767     if (strlen(nick) > nicklen)
2768         return 0;
2769     return 1;
2770 }
2771
2772 static struct userNode*
2773 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)
2774 {
2775     struct userNode *oldUser, *uNode;
2776     unsigned int n, ignore_user;
2777
2778     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2779         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2780         return NULL;
2781     }
2782
2783     if (!uplink) {
2784         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2785         return NULL;
2786     }
2787
2788     if (uplink != GetServerN(numeric)) {
2789         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2790         return NULL;
2791     }
2792
2793     if (!is_valid_nick(nick)) {
2794         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2795         return NULL;
2796     }
2797
2798     ignore_user = 0;
2799     if ((oldUser = GetUserH(nick))) {
2800         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2801             /* The service should collide the new user off. */
2802             oldUser->timestamp = timestamp - 1;
2803             irc_user(oldUser);
2804         }
2805         if (oldUser->timestamp > timestamp) {
2806             /* "Old" user is really newer; remove them */
2807             DelUser(oldUser, 0, 1, "Overruled by older nick");
2808         } else {
2809             /* User being added is too new; do not add them to
2810              * clients, but do add them to the server's list, since it
2811              * will send a KILL and QUIT soon. */
2812             ignore_user = 1;
2813         }
2814     }
2815
2816     /* create new usernode and set all values */
2817     uNode = calloc(1, sizeof(*uNode));
2818     uNode->nick = strdup(nick);
2819     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2820     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2821     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2822     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2823     irc_p10_pton(&uNode->ip, realip);
2824
2825     if (irc_in_addr_is_ipv4(uNode->ip)) {
2826       make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
2827       make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2828     } else if (irc_in_addr_is_ipv6(uNode->ip)) {
2829       make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2830     }
2831
2832     if (!uNode->crypthost && uNode->cryptip)
2833         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
2834
2835     uNode->timestamp = timestamp;
2836     modeList_init(&uNode->channels);
2837     uNode->uplink = uplink;
2838     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2839         uNode->uplink->max_clients = uNode->uplink->clients;
2840     }
2841     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2842     uNode->uplink->users[uNode->num_local] = uNode;
2843     mod_usermode(uNode, modes);
2844
2845     set_geoip_info(uNode);
2846
2847     if (ignore_user)
2848         return uNode;
2849
2850     dict_insert(clients, uNode->nick, uNode);
2851     if (dict_size(clients) > max_clients) {
2852         max_clients = dict_size(clients);
2853         max_clients_time = now;
2854     }
2855     if (IsLocal(uNode))
2856         irc_user(uNode);
2857     for (n=0; n<nuf_used; n++)
2858         if (nuf_list[n](uNode))
2859             break;
2860
2861     if ((uNode->loc == 1) && (uNode->handle_info))
2862         send_func_list(uNode);
2863
2864     return uNode;
2865 }
2866
2867 /* removes user from it's server's hash table and nick hash table */
2868 void
2869 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2870 {
2871     unsigned int n;
2872
2873     verify(user);
2874
2875     /* mark them as dead, in case anybody cares */
2876     user->dead = 1;
2877
2878     /* remove pending adduser commands */
2879     wipe_adduser_pending(NULL, user);
2880
2881     /* remove user from all channels */
2882     while (user->channels.used > 0)
2883         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2884
2885     /* Call these in reverse order so ChanServ can update presence
2886        information before NickServ nukes the handle_info. */
2887     for (n = duf_used; n > 0; )
2888         duf_list[--n](user, killer, why);
2889
2890     user->uplink->clients--;
2891     user->uplink->users[user->num_local] = NULL;
2892     if (IsOper(user))
2893         userList_remove(&curr_opers, user);
2894     /* remove from global dictionary, but not if after a collide */
2895     if (user == dict_find(clients, user->nick, NULL))
2896         dict_remove(clients, user->nick);
2897
2898     if (IsInvisible(user))
2899         invis_clients--;
2900
2901     if (announce) {
2902         if (IsLocal(user))
2903             irc_quit(user, why);
2904         else
2905             irc_kill(killer, user, why);
2906     }
2907
2908     modeList_clean(&user->channels);
2909
2910     /* Clean up version data */
2911     if(user->version_reply) {
2912         free(user->version_reply);
2913         user->version_reply = NULL;
2914     }
2915
2916     /* clean up mark */
2917     if(user->mark) {
2918         free(user->mark);
2919         user->mark = NULL;
2920     }
2921
2922     /* clean up geoip data if any */
2923     if(user->country_code) free(user->country_code);
2924     if(user->city) free(user->city);
2925     if(user->region) free(user->region);
2926     if(user->postal_code) free(user->postal_code);
2927
2928     /* We don't free them, in case we try to privmsg them or something
2929      * (like when a stupid oper kills themself).  We just put them onto
2930      * a list of clients that get freed after processing each line.
2931      */
2932     if (dead_users.size)
2933         userList_append(&dead_users, user);
2934     else
2935         free_user(user);
2936 }
2937
2938 static void call_oper_funcs(struct userNode *user);
2939
2940 void mod_usermode(struct userNode *user, const char *mode_change) {
2941     int add = 1;
2942     const char *word = mode_change;
2943
2944     if (!user || !mode_change)
2945         return;
2946
2947     call_user_mode_funcs(user, mode_change);
2948
2949     while (*word != ' ' && *word) word++;
2950     while (*word == ' ') word++;
2951     while (1) {
2952 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2953         switch (*mode_change++) {
2954         case 0: case ' ': return;
2955         case '+': add = 1; break;
2956         case '-': add = 0; break;
2957         case 'o':
2958             if (add) {
2959                 if(!IsOper(user)) { /* Dont re-oper an oper */
2960                     userList_append(&curr_opers, user);
2961                     call_oper_funcs(user);
2962                 }
2963             } else {
2964                 userList_remove(&curr_opers, user);
2965             }
2966             do_user_mode(FLAGS_OPER);
2967             break;
2968         case 'O': do_user_mode(FLAGS_LOCOP); break;
2969         case 'i': do_user_mode(FLAGS_INVISIBLE);
2970             if (add)
2971                 invis_clients++;
2972             else
2973                 invis_clients--;
2974             break;
2975         case 'w': do_user_mode(FLAGS_WALLOP); break;
2976         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2977         case 'd': do_user_mode(FLAGS_DEAF); break;
2978         case 'k': do_user_mode(FLAGS_SERVICE); break;
2979         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2980         // sethost - reed/apples
2981         // case 'h': do_user_mode(FLAGS_HELPER); break;
2982         // I check if there's an 'h' in the first part, and if there,
2983         // then everything after the space becomes their new host.
2984         case 'h': do_user_mode(FLAGS_SETHOST);
2985             if (*word) {
2986                 char sethost[MAXLEN];
2987                 unsigned int ii;
2988                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2989                     sethost[ii++] = *word++;
2990                 sethost[ii] = 0;
2991                 while (*word == ' ')
2992                     word++;
2993                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2994             }
2995             break;
2996         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2997         case 'r':
2998             if (*word) {
2999                 char tag[MAXLEN];
3000                 unsigned int ii;
3001                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3002                     tag[ii++] = *word++;
3003                 tag[ii] = 0;
3004                 while (*word == ' ')
3005                     word++;
3006                 call_account_func(user, tag);
3007             }
3008             break;
3009         case 'f':
3010             if (*word) {
3011                 char host[MAXLEN];
3012                 unsigned int ii;
3013                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3014                     host[ii++] = *word++;
3015                 host[ii] = 0;
3016                 while (*word == ' ')
3017                     word++;
3018                 assign_fakehost(user, host, 0);
3019             }
3020             break;
3021         }
3022 #undef do_user_mode
3023     }
3024 }
3025
3026 struct mod_chanmode *
3027 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3028 {
3029     struct mod_chanmode *change;
3030     unsigned int ii, in_arg, ch_arg, add;
3031
3032     if (argc == 0)
3033         return NULL;
3034     if (!(change = mod_chanmode_alloc(argc - 1)))
3035         return NULL;
3036
3037     for (ii = ch_arg = 0, in_arg = add = 1;
3038          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3039          ++ii) {
3040         switch (modes[0][ii]) {
3041         case '+':
3042             add = 1;
3043             break;
3044         case '-':
3045             add = 0;
3046             break;
3047 #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)
3048         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3049         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3050         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3051         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3052         case 'm': do_chan_mode(MODE_MODERATED); break;
3053         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3054         case 'p': do_chan_mode(MODE_PRIVATE); break;
3055         case 'r': do_chan_mode(MODE_REGONLY); break;
3056         case 's': do_chan_mode(MODE_SECRET); break;
3057         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3058         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3059         case 'M': do_chan_mode(MODE_MODUNREG); break;
3060         case 'N': do_chan_mode(MODE_NONOTICE); break;
3061         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3062         case 'T': do_chan_mode(MODE_NOAMSG); break;
3063         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3064         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3065         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3066         case 'z':
3067           if (!(flags & MCP_REGISTERED)) {
3068            do_chan_mode(MODE_REGISTERED);
3069           } else {
3070            mod_chanmode_free(change);
3071            return NULL;
3072           }
3073           break;
3074 #undef do_chan_mode
3075         case 'l':
3076             if (add) {
3077                 if (in_arg >= argc)
3078                     goto error;
3079                 change->modes_set |= MODE_LIMIT;
3080                 change->new_limit = atoi(modes[in_arg++]);
3081             } else {
3082                 change->modes_set &= ~MODE_LIMIT;
3083                 change->modes_clear |= MODE_LIMIT;
3084             }
3085             break;
3086         case 'k':
3087             if (add) {
3088                 if (in_arg >= argc)
3089                     goto error;
3090                 change->modes_set |= MODE_KEY;
3091                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
3092             } else {
3093                 change->modes_clear |= MODE_KEY;
3094                 if (!(flags & MCP_KEY_FREE)) {
3095                     if (in_arg >= argc)
3096                         goto error;
3097                     in_arg++;
3098                 }
3099             }
3100             break;
3101         case 'U':
3102             if (add)
3103             {
3104               if (in_arg >= argc)
3105                   goto error;
3106               change->modes_set |= MODE_UPASS;
3107               safestrncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass));
3108             } else {
3109                 change->modes_clear |= MODE_UPASS;
3110                 if (!(flags & MCP_UPASS_FREE)) {
3111                     if (in_arg >= argc)
3112                         goto error;
3113                     in_arg++;
3114                 }
3115             }
3116             break;
3117         case 'A':
3118             if (add) {
3119                 if (in_arg >= argc)
3120                     goto error;
3121                 change->modes_set |= MODE_APASS;
3122                 safestrncpy(change->new_apass, modes[in_arg++], sizeof(change->new_apass));
3123             } else {
3124                 change->modes_clear |= MODE_APASS;
3125                 if (!(flags & MCP_APASS_FREE)) {
3126                     if (in_arg >= argc)
3127                       goto error;
3128                     in_arg++;
3129                 }
3130             }
3131             break;
3132         case 'b':
3133             if (!(flags & MCP_ALLOW_OVB))
3134                 goto error;
3135             if (in_arg >= argc)
3136                 goto error;
3137             change->args[ch_arg].mode = MODE_BAN;
3138             if (!add)
3139                 change->args[ch_arg].mode |= MODE_REMOVE;
3140             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3141             break;
3142         case 'e':
3143             if (!(flags & MCP_ALLOW_OVB))
3144                 goto error;
3145             if (in_arg >= argc)
3146                 goto error;
3147             change->args[ch_arg].mode = MODE_EXEMPT;
3148             if (!add)
3149                 change->args[ch_arg].mode |= MODE_REMOVE;
3150             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3151             break;
3152         case 'o': case 'h': case 'v':
3153         {
3154             struct userNode *victim;
3155             char *oplevel_str;
3156             int oplevel;
3157
3158             if (in_arg >= argc)
3159                 goto error;
3160             oplevel_str = strchr(modes[in_arg], ':');
3161             if (oplevel_str)
3162             {
3163                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3164                 *oplevel_str++ = '\0';
3165                 oplevel = parse_oplevel(oplevel_str);
3166                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3167                     oplevel = base_oplevel + 1;
3168             }
3169             else if (channel->modes & MODE_UPASS)
3170                 oplevel = base_oplevel + 1;
3171             else
3172                 oplevel = -1;
3173
3174             /* Check that oplevel is within bounds. */
3175             if (oplevel > MAXOPLEVEL)
3176                 oplevel = MAXOPLEVEL;
3177
3178             if (!(flags & MCP_ALLOW_OVB))
3179                 goto error;
3180             if (in_arg >= argc)
3181                 goto error;
3182
3183             if (modes[0][ii] == 'o')
3184                 change->args[ch_arg].mode = MODE_CHANOP;
3185             else if (modes[0][ii] == 'h')
3186                 change->args[ch_arg].mode = MODE_HALFOP;
3187             else if (modes[0][ii] == 'v')
3188                 change->args[ch_arg].mode = MODE_VOICE;
3189
3190             if (!add)
3191                 change->args[ch_arg].mode |= MODE_REMOVE;
3192             if (flags & MCP_FROM_SERVER)
3193                 victim = GetUserN(modes[in_arg++]);
3194             else
3195                 victim = GetUserH(modes[in_arg++]);
3196             if (!victim)
3197                 continue;
3198             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3199             {
3200                 /* Apply the oplevel change */
3201                 change->args[ch_arg].u.member->oplevel = oplevel;
3202                 ch_arg++;
3203             }
3204             break;
3205         }
3206         default:
3207             if (!(flags & MCP_FROM_SERVER))
3208                 goto error;
3209             break;
3210         }
3211     }
3212     change->argc = ch_arg; /* in case any turned out to be ignored */
3213     if (change->modes_set & MODE_SECRET) {
3214         change->modes_set &= ~(MODE_PRIVATE);
3215         change->modes_clear |= MODE_PRIVATE;
3216     } else if (change->modes_set & MODE_PRIVATE) {
3217         change->modes_set &= ~(MODE_SECRET);
3218         change->modes_clear |= MODE_SECRET;
3219     }
3220     return change;
3221   error:
3222     mod_chanmode_free(change);
3223     return NULL;
3224 }
3225
3226 struct chanmode_buffer {
3227     char modes[MAXLEN];
3228     char args[MAXLEN];
3229     struct chanNode *channel;
3230     struct userNode *actor;
3231     unsigned int modes_used;
3232     unsigned int args_used;
3233     size_t chname_len;
3234     unsigned int is_add : 1;
3235     unsigned int is_chanop : 1;
3236 };
3237
3238 static void
3239 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3240 {
3241     size_t arg_len = strlen(arg);
3242     if (buf->modes_used > (MAXMODEPARAMS) ||
3243         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3244         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3245         buf->modes[buf->modes_used + buf->args_used] = '\0';
3246         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3247         buf->modes[0] = buf->is_add ? '+' : '-';
3248         buf->modes_used = 1;
3249         buf->args_used = 0;
3250     }
3251     buf->modes[buf->modes_used++] = ch;
3252     buf->args[buf->args_used++] = ' ';
3253     memcpy(buf->args + buf->args_used, arg, arg_len);
3254     buf->args_used += arg_len;
3255 }
3256
3257 void
3258 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3259 {
3260     struct chanmode_buffer chbuf;
3261     unsigned int arg;
3262     struct modeNode *mn;
3263     char int_buff[32], mode = '\0';
3264
3265     assert(change->argc <= change->alloc_argc);
3266     memset(&chbuf, 0, sizeof(chbuf));
3267     chbuf.channel = channel;
3268     chbuf.actor = who;
3269     chbuf.chname_len = strlen(channel->name);
3270
3271     mn = GetUserMode(channel, who);
3272     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3273         chbuf.is_chanop = 1;
3274
3275     /* First remove modes */
3276     chbuf.is_add = 0;
3277     if (change->modes_clear) {
3278         if (mode != '-')
3279             chbuf.modes[chbuf.modes_used++] = mode = '-';
3280 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3281         DO_MODE_CHAR(PRIVATE, 'p');
3282         DO_MODE_CHAR(SECRET, 's');
3283         DO_MODE_CHAR(MODERATED, 'm');
3284         DO_MODE_CHAR(TOPICLIMIT, 't');
3285         DO_MODE_CHAR(INVITEONLY, 'i');
3286         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3287         DO_MODE_CHAR(LIMIT, 'l');
3288         DO_MODE_CHAR(DELAYJOINS, 'D');
3289         DO_MODE_CHAR(REGONLY, 'r');
3290         DO_MODE_CHAR(NOCOLORS, 'c');
3291         DO_MODE_CHAR(NOCTCPS, 'C');
3292         DO_MODE_CHAR(STRIPCOLOR, 'S');
3293         DO_MODE_CHAR(MODUNREG, 'M');
3294         DO_MODE_CHAR(NONOTICE, 'N');
3295         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3296         DO_MODE_CHAR(NOAMSG, 'T');
3297         DO_MODE_CHAR(OPERSONLY, 'O');
3298         DO_MODE_CHAR(REGISTERED, 'z');
3299         DO_MODE_CHAR(SSLONLY, 'Z');
3300         DO_MODE_CHAR(HIDEMODE, 'L');
3301 #undef DO_MODE_CHAR
3302         if (change->modes_clear & channel->modes & MODE_KEY)
3303             mod_chanmode_append(&chbuf, 'k', channel->key);
3304         if (change->modes_clear & channel->modes & MODE_UPASS)
3305             mod_chanmode_append(&chbuf, 'U', channel->upass);
3306         if (change->modes_clear * channel->modes & MODE_APASS)
3307             mod_chanmode_append(&chbuf, 'A', channel->apass);
3308     }
3309     for (arg = 0; arg < change->argc; ++arg) {
3310         if (!(change->args[arg].mode & MODE_REMOVE))
3311             continue;
3312         if (mode != '-')
3313             chbuf.modes[chbuf.modes_used++] = mode = '-';
3314         switch (change->args[arg].mode & ~MODE_REMOVE) {
3315         case MODE_BAN:
3316             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3317             break;
3318         case MODE_EXEMPT:
3319             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3320             break;
3321         default:
3322             if (change->args[arg].mode & MODE_CHANOP)
3323                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3324             if (change->args[arg].mode & MODE_HALFOP)
3325                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3326             if (change->args[arg].mode & MODE_VOICE)
3327                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3328             break;
3329         }
3330     }
3331
3332     /* Then set them */
3333     chbuf.is_add = 1;
3334     if (change->modes_set) {
3335         if (mode != '+')
3336             chbuf.modes[chbuf.modes_used++] = mode = '+';
3337 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3338         DO_MODE_CHAR(PRIVATE, 'p');
3339         DO_MODE_CHAR(SECRET, 's');
3340         DO_MODE_CHAR(MODERATED, 'm');
3341         DO_MODE_CHAR(TOPICLIMIT, 't');
3342         DO_MODE_CHAR(INVITEONLY, 'i');
3343         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3344         DO_MODE_CHAR(DELAYJOINS, 'D');
3345         DO_MODE_CHAR(REGONLY, 'r');
3346         DO_MODE_CHAR(NOCOLORS, 'c');
3347         DO_MODE_CHAR(NOCTCPS, 'C');
3348         DO_MODE_CHAR(STRIPCOLOR, 'S');
3349         DO_MODE_CHAR(MODUNREG, 'M');
3350         DO_MODE_CHAR(NONOTICE, 'N');
3351         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3352         DO_MODE_CHAR(NOAMSG, 'T');
3353         DO_MODE_CHAR(OPERSONLY, 'O');
3354         DO_MODE_CHAR(REGISTERED, 'z');
3355         DO_MODE_CHAR(SSLONLY, 'Z');
3356         DO_MODE_CHAR(HIDEMODE, 'L');
3357 #undef DO_MODE_CHAR
3358         if(change->modes_set & MODE_KEY)
3359             mod_chanmode_append(&chbuf, 'k', change->new_key);
3360         if (change->modes_set & MODE_UPASS)
3361             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3362         if (change->modes_set & MODE_APASS)
3363             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3364         if(change->modes_set & MODE_LIMIT) {
3365             sprintf(int_buff, "%d", change->new_limit);
3366             mod_chanmode_append(&chbuf, 'l', int_buff);
3367         }
3368     }
3369     for (arg = 0; arg < change->argc; ++arg) {
3370         if (change->args[arg].mode & MODE_REMOVE)
3371             continue;
3372         if (mode != '+')
3373             chbuf.modes[chbuf.modes_used++] = mode = '+';
3374         switch (change->args[arg].mode) {
3375         case MODE_BAN:
3376             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3377             break;
3378         case MODE_EXEMPT:
3379             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3380             break;
3381         default:
3382             if (change->args[arg].mode & MODE_CHANOP)
3383                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3384             if (change->args[arg].mode & MODE_HALFOP)
3385                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3386             if (change->args[arg].mode & MODE_VOICE)
3387                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3388             break;
3389         }
3390     }
3391
3392     /* Flush the buffer and apply changes locally */
3393     if (chbuf.modes_used > 0) {
3394         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3395         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3396         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3397     }
3398     mod_chanmode_apply(who, channel, change);
3399 }
3400
3401 char *
3402 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3403 {
3404     unsigned int used = 0;
3405     assert(change->argc <= change->alloc_argc);
3406     if (change->modes_clear) {
3407         outbuff[used++] = '-';
3408 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3409         DO_MODE_CHAR(PRIVATE, 'p');
3410         DO_MODE_CHAR(SECRET, 's');
3411         DO_MODE_CHAR(MODERATED, 'm');
3412         DO_MODE_CHAR(TOPICLIMIT, 't');
3413         DO_MODE_CHAR(INVITEONLY, 'i');
3414         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3415         DO_MODE_CHAR(LIMIT, 'l');
3416         DO_MODE_CHAR(KEY, 'k');
3417         DO_MODE_CHAR(UPASS, 'U');
3418         DO_MODE_CHAR(APASS, 'A');
3419         DO_MODE_CHAR(DELAYJOINS, 'D');
3420         DO_MODE_CHAR(REGONLY, 'r');
3421         DO_MODE_CHAR(NOCOLORS, 'c');
3422         DO_MODE_CHAR(NOCTCPS, 'C');
3423         DO_MODE_CHAR(STRIPCOLOR, 'S');
3424         DO_MODE_CHAR(MODUNREG, 'M');
3425         DO_MODE_CHAR(NONOTICE, 'N');
3426         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3427         DO_MODE_CHAR(NOAMSG, 'T');
3428         DO_MODE_CHAR(OPERSONLY, 'O');
3429         DO_MODE_CHAR(REGISTERED, 'z');
3430         DO_MODE_CHAR(SSLONLY, 'Z');
3431         DO_MODE_CHAR(HIDEMODE, 'L');
3432 #undef DO_MODE_CHAR
3433     }
3434     if (change->modes_set) {
3435         outbuff[used++] = '+';
3436 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3437         DO_MODE_CHAR(PRIVATE, 'p');
3438         DO_MODE_CHAR(SECRET, 's');
3439         DO_MODE_CHAR(MODERATED, 'm');
3440         DO_MODE_CHAR(TOPICLIMIT, 't');
3441         DO_MODE_CHAR(INVITEONLY, 'i');
3442         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3443         DO_MODE_CHAR(DELAYJOINS, 'D');
3444         DO_MODE_CHAR(REGONLY, 'r');
3445         DO_MODE_CHAR(NOCOLORS, 'c');
3446         DO_MODE_CHAR(NOCTCPS, 'C');
3447         DO_MODE_CHAR(STRIPCOLOR, 'S');
3448         DO_MODE_CHAR(MODUNREG, 'M');
3449         DO_MODE_CHAR(NONOTICE, 'N');
3450         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3451         DO_MODE_CHAR(NOAMSG, 'T');
3452         DO_MODE_CHAR(OPERSONLY, 'O');
3453         DO_MODE_CHAR(REGISTERED, 'z');
3454         DO_MODE_CHAR(SSLONLY, 'Z');
3455         DO_MODE_CHAR(HIDEMODE, 'L');
3456 #undef DO_MODE_CHAR
3457         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3458         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3459         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3460             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3461             break;
3462
3463         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3464             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3465             break;
3466         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3467             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3468             break;
3469         case MODE_KEY|MODE_APASS|MODE_UPASS:
3470             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3471             break;
3472
3473         case MODE_KEY|MODE_APASS:
3474             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3475             break;
3476         case MODE_KEY|MODE_UPASS:
3477             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3478             break;
3479         case MODE_KEY|MODE_LIMIT:
3480             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3481             break;
3482
3483         case MODE_LIMIT|MODE_UPASS:
3484             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3485             break;
3486         case MODE_LIMIT|MODE_APASS:
3487             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3488             break;
3489         case MODE_APASS|MODE_UPASS:
3490             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3491
3492         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3493             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3494             break;
3495
3496         case MODE_APASS:
3497             used += sprintf(outbuff+used, "A %s", change->new_apass);
3498             break;
3499         case MODE_UPASS:
3500             used += sprintf(outbuff+used, "U %s", change->new_upass);
3501             break;
3502         case MODE_KEY:
3503             used += sprintf(outbuff+used, "k %s", change->new_key);
3504             break;
3505         case MODE_LIMIT:
3506             used += sprintf(outbuff+used, "l %d", change->new_limit);
3507             break;
3508         }
3509     }
3510     outbuff[used] = 0;
3511     return outbuff;
3512 }
3513
3514 static int
3515 clear_chanmode(struct chanNode *channel, const char *modes)
3516 {
3517     unsigned int remove;
3518
3519     for (remove = 0; *modes; modes++) {
3520         switch (*modes) {
3521         case 'o': remove |= MODE_CHANOP; break;
3522         case 'h': remove |= MODE_HALFOP; break;
3523         case 'v': remove |= MODE_VOICE; break;
3524         case 'p': remove |= MODE_PRIVATE; break;
3525         case 's': remove |= MODE_SECRET; break;
3526         case 'm': remove |= MODE_MODERATED; break;
3527         case 't': remove |= MODE_TOPICLIMIT; break;
3528         case 'i': remove |= MODE_INVITEONLY; break;
3529         case 'n': remove |= MODE_NOPRIVMSGS; break;
3530         case 'k':
3531             remove |= MODE_KEY;
3532             channel->key[0] = '\0';
3533             break;
3534         case 'A':
3535             remove |= MODE_APASS;
3536             channel->apass[0] = '\0';
3537             break;
3538         case 'U':
3539             remove |= MODE_UPASS;
3540             channel->upass[0] = '\0';
3541             break;
3542         case 'l':
3543             remove |= MODE_LIMIT;
3544             channel->limit = 0;
3545             break;
3546         case 'b': remove |= MODE_BAN; break;
3547         case 'e': remove |= MODE_EXEMPT; break;
3548         case 'D': remove |= MODE_DELAYJOINS; break;
3549         case 'r': remove |= MODE_REGONLY; break;
3550         case 'c': remove |= MODE_NOCOLORS; break;
3551         case 'C': remove |= MODE_NOCTCPS; break;
3552         case 'S': remove |= MODE_STRIPCOLOR; break;
3553         case 'M': remove |= MODE_MODUNREG; break;
3554         case 'N': remove |= MODE_NONOTICE; break;
3555         case 'Q': remove |= MODE_NOQUITMSGS; break;
3556         case 'T': remove |= MODE_NOAMSG; break;
3557         case 'O': remove |= MODE_OPERSONLY; break;
3558         case 'z': remove |= MODE_REGISTERED; break;
3559         case 'Z': remove |= MODE_SSLONLY; break;
3560         case 'L': remove |= MODE_HIDEMODE; break;
3561         }
3562     }
3563
3564     if (!remove)
3565         return 1;
3566
3567     /* Remove simple modes. */
3568     channel->modes &= ~remove;
3569
3570     /* If removing bans, kill 'em all. */
3571     if ((remove & MODE_BAN) && channel->banlist.used) {
3572         unsigned int i;
3573         for (i=0; i<channel->banlist.used; i++)
3574             free(channel->banlist.list[i]);
3575         channel->banlist.used = 0;
3576     }
3577
3578     /* If removing exempts, kill 'em all. */
3579     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
3580         unsigned int i;
3581         for (i=0; i<channel->exemptlist.used; i++)
3582             free(channel->exemptlist.list[i]);
3583         channel->exemptlist.used = 0;
3584     }
3585
3586     /* Remove member modes. */
3587     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3588         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3589         unsigned int i;
3590
3591         for (i = 0; i < channel->members.used; i++)
3592             channel->members.list[i]->modes &= mask;
3593     }
3594
3595     return 1;
3596 }
3597
3598 void
3599 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3600 {
3601     unsigned int numeric = user->num_local;
3602     if (numeric >= num_privmsg_funcs) {
3603         int newnum = numeric + 8;
3604         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3605         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
3606         num_privmsg_funcs = newnum;
3607     }
3608     if (privmsg_funcs[numeric])
3609         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3610     privmsg_funcs[numeric] = handler;
3611 }
3612
3613 void
3614 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3615 {
3616     unsigned int x;
3617
3618     if (!user || handler)
3619       return; /* this really only works with users */
3620
3621     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3622
3623     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
3624        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
3625
3626     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
3627     num_privmsg_funcs--;
3628 }
3629
3630
3631 void
3632 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3633 {
3634     unsigned int numeric = user->num_local;
3635     if (numeric >= num_notice_funcs) {
3636         int newnum = numeric + 8;
3637         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3638         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
3639         num_notice_funcs = newnum;
3640     }
3641     if (notice_funcs[numeric])
3642         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3643     notice_funcs[numeric] = handler;
3644 }
3645
3646 void
3647 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
3648 {
3649     unsigned int x;
3650
3651     if (!user || handler)
3652           return; /* this really only works with users */
3653
3654     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3655
3656     for (x = user->num_local+1; x < num_notice_funcs; x++)
3657        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
3658
3659     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3660     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
3661     num_notice_funcs--;
3662 }
3663
3664 void
3665 reg_oper_func(oper_func_t handler)
3666 {
3667     if (of_used == of_size) {
3668         if (of_size) {
3669             of_size <<= 1;
3670             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
3671         } else {
3672             of_size = 8;
3673             of_list = malloc(of_size*sizeof(oper_func_t));
3674         }
3675     }
3676     of_list[of_used++] = handler;
3677 }
3678
3679 static void
3680 call_oper_funcs(struct userNode *user)
3681 {
3682     unsigned int n;
3683     if (IsLocal(user))
3684         return;
3685     for (n=0; n<of_used; n++)
3686         of_list[n](user);
3687 }
3688
3689 static void
3690 send_burst(void)
3691 {
3692     unsigned int i, hop, max_hop=1;
3693     dict_iterator_t it;
3694
3695     /* burst (juped) servers, closest first (except self, which is sent already) */
3696     for (i=0; i<ArrayLength(servers_num); i++)
3697         if (servers_num[i] && servers_num[i]->hops > max_hop)
3698             max_hop = servers_num[i]->hops;
3699     for (hop=1; hop<=max_hop; hop++) {
3700         for (i=0;i<ArrayLength(servers_num);i++) {
3701             if (servers_num[i]
3702                 && (servers_num[i]->hops == hop)
3703                 && (servers_num[i] != self->uplink))
3704                 irc_server(servers_num[i]);
3705         }
3706     }
3707
3708     /* burst local nicks */
3709     for (i=0; i<=self->num_mask; i++)
3710         if (self->users[i])
3711             irc_user(self->users[i]);
3712
3713     /* build dict of unbursted channel names (just copy existing channels) */
3714     unbursted_channels = dict_new();
3715     for (it = dict_first(channels); it; it = iter_next(it))
3716         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3717 }
3718
3719 /*
3720  * Oplevel parsing
3721  */
3722 static int
3723 parse_oplevel(char *str)
3724 {
3725     int oplevel = 0;
3726     while (isdigit(*str))
3727         oplevel = oplevel * 10 + *str++ - '0';
3728     return oplevel;
3729 }
3730