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_SGLINE              "SGLINE"
  93 #define CMD_SHUN                "SHUN"
  94 #define CMD_SILENCE             "SILENCE"
  95 #define CMD_SMO                 "SMO"
  96 #define CMD_SNO                 "SNO"
  97 #define CMD_SSHUN               "SSHUN"
  98 #define CMD_SQUERY              "SQUERY"
  99 #define CMD_SQUIT               "SQUIT"
 100 #define CMD_STATS               "STATS"
 101 #define CMD_SVSJOIN             "SVSJOIN"
 102 #define CMD_SVSNICK             "SVSNICK"
 103 #define CMD_SVSPART             "SVSPART"
 104 #define CMD_SVSQUIT             "SVSQUIT"
 105 #define CMD_SWHOIS              "SWHOIS"
 106 #define CMD_TIME                "TIME"
 107 #define CMD_TOPIC               "TOPIC"
 108 #define CMD_TRACE               "TRACE"
 109 #define CMD_UPING               "UPING"
 110 #define CMD_USER                "USER"
 111 #define CMD_USERHOST            "USERHOST"
 112 #define CMD_USERIP              "USERIP"
 113 #define CMD_VERSION             "VERSION"
 114 #define CMD_WALLCHOPS           "WALLCHOPS"
 115 #define CMD_WALLOPS             "WALLOPS"
 116 #define CMD_WALLHOPS            "WALLHOPS"
 117 #define CMD_WALLUSERS           "WALLUSERS"
 118 #define CMD_WALLVOICES          "WALLVOICES"
 119 #define CMD_WALLHOPS            "WALLHOPS"
 120 #define CMD_WHO                 "WHO"
 121 #define CMD_WHOIS               "WHOIS"
 122 #define CMD_WHOWAS              "WHOWAS"
 123
 124 /* Tokenized commands. */
 125 #define TOK_ACCOUNT             "AC"
 126 #define TOK_ADMIN               "AD"
 127 #define TOK_ALIST               "AL"
 128 #define TOK_ASLL                "LL"
 129 #define TOK_AWAY                "A"
 130 #define TOK_BURST               "B"
 131 #define TOK_CLEARMODE           "CM"
 132 #define TOK_CLOSE               "CLOSE"
 133 #define TOK_CNOTICE             "CN"
 134 #define TOK_CONNECT             "CO"
 135 #define TOK_CPRIVMSG            "CP"
 136 #define TOK_CREATE              "C"
 137 #define TOK_DESTRUCT            "DE"
 138 #define TOK_DESYNCH             "DS"
 139 #define TOK_DIE                 "DIE"
 140 #define TOK_DNS                 "DNS"
 141 #define TOK_EOB                 "EB"
 142 #define TOK_EOB_ACK             "EA"
 143 #define TOK_ERROR               "Y"
 144 #define TOK_EXEMPT              "EX"
 145 #define TOK_FAKEHOST            "FA"
 146 #define TOK_GET                 "GET"
 147 #define TOK_GLINE               "GL"
 148 #define TOK_HASH                "HASH"
 149 #define TOK_HELP                "HELP"
 150 #define TOK_INFO                "F"
 151 #define TOK_INVITE              "I"
 152 #define TOK_ISON                "ISON"
 153 #define TOK_JOIN                "J"
 154 #define TOK_JUPE                "JU"
 155 #define TOK_KICK                "K"
 156 #define TOK_KILL                "D"
 157 #define TOK_LINKS               "LI"
 158 #define TOK_LIST                "LIST"
 159 #define TOK_LUSERS              "LU"
 160 #define TOK_MAP                 "MAP"
 161 #define TOK_MARK                "MK"
 162 #define TOK_MODE                "M"
 163 #define TOK_MOTD                "MO"
 164 #define TOK_NAMES               "E"
 165 #define TOK_NICK                "N"
 166 #define TOK_NOTICE              "O"
 167 #define TOK_OPER                "OPER"
 168 #define TOK_OPMODE              "OM"
 169 #define TOK_PART                "L"
 170 #define TOK_PASS                "PA"
 171 #define TOK_PING                "G"
 172 #define TOK_PONG                "Z"
 173 #define TOK_POST                "POST"
 174 #define TOK_PRIVMSG             "P"
 175 #define TOK_PRIVS               "PRIVS"
 176 #define TOK_PROTO               "PROTO"
 177 #define TOK_QUIT                "Q"
 178 #define TOK_REHASH              "REHASH"
 179 #define TOK_RESET               "RESET"
 180 #define TOK_RESTART             "RESTART"
 181 #define TOK_RPING               "RI"
 182 #define TOK_RPONG               "RO"
 183 #define TOK_SERVER              "S"
 184 #define TOK_SERVLIST            "SERVSET"
 185 #define TOK_SERVSET             "SERVSET"
 186 #define TOK_SET                 "SET"
 187 #define TOK_SETTIME             "SE"
 188 #define TOK_SGLINE              "SGL"
 189 #define TOK_SHUN                "SU"
 190 #define TOK_SILENCE             "U"
 191 #define TOK_SMO                 "SMO"
 192 #define TOK_SNO                 "SNO"
 193 #define TOK_SSHUN               "SSU"
 194 #define TOK_SQUERY              "SQUERY"
 195 #define TOK_SQUIT               "SQ"
 196 #define TOK_STATS               "R"
 197 #define TOK_SVSJOIN             "SJ"
 198 #define TOK_SVSNICK             "SN"
 199 #define TOK_SVSPART             "SP"
 200 #define TOK_SVSQUIT             "SX"
 201 #define TOK_SWHOIS              "SW"
 202 #define TOK_TIME                "TI"
 203 #define TOK_TOPIC               "T"
 204 #define TOK_TRACE               "TR"
 205 #define TOK_UPING               "UP"
 206 #define TOK_USER                "USER"
 207 #define TOK_USERHOST            "USERHOST"
 208 #define TOK_USERIP              "USERIP"
 209 #define TOK_VERSION             "V"
 210 #define TOK_WALLCHOPS           "WC"
 211 #define TOK_WALLOPS             "WA"
 212 #define TOK_WALLHOPS            "WH"
 213 #define TOK_WALLUSERS           "WU"
 214 #define TOK_WALLVOICES          "WV"
 215 #define TOK_WALLHOPS            "WH"
 216 #define TOK_WHO                 "H"
 217 #define TOK_WHOIS               "W"
 218 #define TOK_WHOWAS              "X"
 219
 220 /* Protocol messages; aliased to full commands or tokens depending
 221    on compile-time configuration. ircu prefers tokens WITH THE
 222    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 223    tokenized, because clients' (ie. a linking server) commands are
 224    only checked against the full command list.
 225 */
 226 #if defined(ENABLE_TOKENS)
 227 #define TYPE(NAME)              TOK_ ## NAME
 228 #else /* !ENABLE_TOKENS */
 229 #define TYPE(NAME)              CMD_ ## NAME
 230 #endif /* ENABLE_TOKENS */
 231
 232 #define P10_ACCOUNT             TYPE(ACCOUNT)
 233 #define P10_ADMIN               TYPE(ADMIN)
 234 #define P10_ASLL                TYPE(ASLL)
 235 #define P10_AWAY                TYPE(AWAY)
 236 #define P10_BURST               TYPE(BURST)
 237 #define P10_CLEARMODE           TYPE(CLEARMODE)
 238 #define P10_CLOSE               TYPE(CLOSE)
 239 #define P10_CNOTICE             TYPE(CNOTICE)
 240 #define P10_CONNECT             TYPE(CONNECT)
 241 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 242 #define P10_CREATE              TYPE(CREATE)
 243 #define P10_DESTRUCT            TYPE(DESTRUCT)
 244 #define P10_DESYNCH             TYPE(DESYNCH)
 245 #define P10_DIE                 TYPE(DIE)
 246 #define P10_DNS                 TYPE(DNS)
 247 #define P10_EOB                 TYPE(EOB)
 248 #define P10_EOB_ACK             TYPE(EOB_ACK)
 249 #define P10_ERROR               TYPE(ERROR)
 250 #define P10_FAKEHOST            TYPE(FAKEHOST)
 251 #define P10_GET                 TYPE(GET)
 252 #define P10_GLINE               TYPE(GLINE)
 253 #define P10_HASH                TYPE(HASH)
 254 #define P10_HELP                TYPE(HELP)
 255 #define P10_INFO                TYPE(INFO)
 256 #define P10_INVITE              TYPE(INVITE)
 257 #define P10_ISON                TYPE(ISON)
 258 #define P10_JOIN                TYPE(JOIN)
 259 #define P10_JUPE                TYPE(JUPE)
 260 #define P10_KICK                TYPE(KICK)
 261 #define P10_KILL                TYPE(KILL)
 262 #define P10_LINKS               TYPE(LINKS)
 263 #define P10_LIST                TYPE(LIST)
 264 #define P10_LUSERS              TYPE(LUSERS)
 265 #define P10_MAP                 TYPE(MAP)
 266 #define P10_MARK                TYPE(MARK)
 267 #define P10_MODE                TYPE(MODE)
 268 #define P10_MOTD                TYPE(MOTD)
 269 #define P10_NAMES               TYPE(NAMES)
 270 #define P10_NICK                TYPE(NICK)
 271 #define P10_NOTICE              TYPE(NOTICE)
 272 #define P10_OPER                TYPE(OPER)
 273 #define P10_OPMODE              TYPE(OPMODE)
 274 #define P10_PART                TYPE(PART)
 275 #define P10_PASS                CMD_PASS
 276 #define P10_PING                TYPE(PING)
 277 #define P10_PONG                TYPE(PONG)
 278 #define P10_POST                TYPE(POST)
 279 #define P10_PRIVMSG             TYPE(PRIVMSG)
 280 #define P10_PRIVS               TYPE(PRIVS)
 281 #define P10_PROTO               TYPE(PROTO)
 282 #define P10_QUIT                TYPE(QUIT)
 283 #define P10_REHASH              TYPE(REHASH)
 284 #define P10_RESET               TYPE(RESET)
 285 #define P10_RESTART             TYPE(RESTART)
 286 #define P10_RPING               TYPE(RPING)
 287 #define P10_RPONG               TYPE(RPONG)
 288 #define P10_SERVER              CMD_SERVER
 289 #define P10_SERVLIST            TYPE(SERVLIST)
 290 #define P10_SERVSET             TYPE(SERVSET)
 291 #define P10_SET                 TYPE(SET)
 292 #define P10_SETTIME             TYPE(SETTIME)
 293 #define P10_SGLINE              TYPE(SGLINE)
 294 #define P10_SHUN                TYPE(SHUN)
 295 #define P10_SILENCE             TYPE(SILENCE)
 296 #define P10_SMO                 TYPE(SMO)
 297 #define P10_SNO                 TYPE(SNO)
 298 #define P10_SSHUN               TYPE(SSHUN)
 299 #define P10_SQUERY              TYPE(SQUERY)
 300 #define P10_SQUIT               TYPE(SQUIT)
 301 #define P10_STATS               TYPE(STATS)
 302 #define P10_SVSJOIN             TYPE(SVSJOIN)
 303 #define P10_SVSNICK             TYPE(SVSNICK)
 304 #define P10_SVSPART             TYPE(SVSPART)
 305 #define P10_SVSQUIT             TYPE(SVSQUIT)
 306 #define P10_SWHOIS              TYPE(SWHOIS)
 307 #define P10_TIME                TYPE(TIME)
 308 #define P10_TOPIC               TYPE(TOPIC)
 309 #define P10_TRACE               TYPE(TRACE)
 310 #define P10_UPING               TYPE(UPING)
 311 #define P10_USER                TYPE(USER)
 312 #define P10_USERHOST            TYPE(USERHOST)
 313 #define P10_USERIP              TYPE(USERIP)
 314 #define P10_VERSION             TYPE(VERSION)
 315 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 316 #define P10_WALLOPS             TYPE(WALLOPS)
 317 #define P10_WALLHOPS            TYPE(WALLHOPS)
 318 #define P10_WALLUSERS           TYPE(WALLUSERS)
 319 #define P10_WALLVOICES          TYPE(WALLVOICES)
 320 #define P10_WHO                 TYPE(WHO)
 321 #define P10_WHOIS               TYPE(WHOIS)
 322 #define P10_WHOWAS              TYPE(WHOWAS)
 323 #define P10_EXEMPT              TYPE(EXEMPT)
 324
 325 /* Servers claiming to have a boot or link time before PREHISTORY
 326  * trigger errors to the log.  We hope no server has been running
 327  * constantly since September 1994.  :)
 328  */
 329 #define PREHISTORY 780000000
 330
 331 #define MODELEN                 40 + KEYLEN
 332
 333 static struct server *servers_num[64*64];
 334 static privmsg_func_t *privmsg_funcs;
 335 static unsigned int num_privmsg_funcs;
 336 static privmsg_func_t *notice_funcs;
 337 static unsigned int num_notice_funcs;
 338 static struct dict *unbursted_channels;
 339 static char *his_servername;
 340 static char *his_servercomment;
 341 static int extended_accounts;
 342
 343 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);
 344
 345 extern int off_channel;
 346 extern int DefConLevel;
 347 extern int DefConTimeOut;
 348 extern char *DefConChanModes;
 349
 350 static int parse_oplevel(char *str);
 351
 352 char privbuf[512] = "";
 353
 354 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 355  * server and Y's indentifying the client on that server. */
 356 struct server*
 357 GetServerN(const char *numeric)
 358 {
 359     switch (strlen(numeric)) {
 360     default:
 361         return servers_num[base64toint(numeric, 2)];
 362     case 4:
 363     case 3:
 364     case 1:
 365         return servers_num[base64toint(numeric, 1)];
 366     case 0:
 367         return NULL;
 368     }
 369 }
 370
 371 struct userNode*
 372 GetUserN(const char *numeric) /* using numeric */
 373 {
 374     struct userNode *un;
 375     struct server *s;
 376     int n, slen, ulen;
 377
 378     switch (strlen(numeric)) {
 379     default:
 380         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 381         return NULL;
 382     case 5: slen = 2; ulen = 3; break;
 383     case 4: slen = 1; ulen = 3; break;
 384     case 3: slen = 1; ulen = 2; break;
 385     case 2: case 1: case 0:
 386         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 387         return NULL;
 388     }
 389     if (!(s = servers_num[base64toint(numeric, slen)])) {
 390         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 391         return NULL;
 392     }
 393     n = base64toint(numeric+slen, ulen) & s->num_mask;
 394     if (!(un = s->users[n])) {
 395         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 396     }
 397     return un;
 398 }
 399
 400 extern struct userNode *opserv;
 401 static void
 402 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 403 {
 404     char *cmd;
 405     /* if its a version reply, do an alert check (only alerts with version=something) */
 406     if(bot == opserv) {
 407         if(text[0] == '\001') {
 408             text++;
 409             cmd = mysep(&text, " ");
 410             if(!irccasecmp(cmd, "VERSION")) {
 411                 char *version = mysep(&text, "\n");
 412                 if(!version)
 413                     version = "";
 414                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 415                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 416                 user->version_reply = strdup(version);
 417                 /* TODO: put this in the db */
 418                 if(match_ircglob(version, "WebTV;*"))
 419                     user->no_notice = true; /* webbies cant see notices */
 420             }
 421         }
 422     }
 423 }
 424
 425
 426 static void
 427 privmsg_user_helper(struct userNode *un, void *data)
 428 {
 429     struct privmsg_desc *pd = data;
 430     unsigned int num = un->num_local;
 431     if (!pd->is_notice) {
 432         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 433             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 434         }
 435     } else {
 436         if ((num < num_notice_funcs) && notice_funcs[num]) {
 437             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 438             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 439         }
 440     }
 441 }
 442
 443 /* equiv to user doing /connect server port target */
 444 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 445 {
 446     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 447 }
 448
 449 void
 450 irc_squit_route(struct server *srv, const char *message, ...)
 451 {
 452     va_list arg_list;
 453     char buffer[MAXLEN];
 454     va_start(arg_list, message);
 455     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 456     buffer[MAXLEN-1] = 0;
 457
 458     /* When would we squit ourselves exactly?? -Rubin */
 459     if(srv == self && cManager.uplink->state == CONNECTED ) {
 460         unsigned int i;
 461
 462         /* Quit all clients linked to me. */
 463         for(i = 0; i <= self->num_mask; i++) {
 464             if(!self->users[i])
 465                 continue;
 466             irc_quit(self->users[i], buffer);
 467         }
 468     }
 469
 470     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 471
 472     if(srv == self) {
 473         /* Force a reconnect to the currently selected server. */
 474         cManager.uplink->tries = 0;
 475         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 476         close_socket();
 477     }
 478 }
 479
 480 void
 481 irc_server(struct server *srv)
 482 {
 483     char extranum[COMBO_NUMERIC_LEN+1];
 484
 485     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 486     if (srv == self) {
 487         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s6 :%s",
 488                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 489     } else {
 490         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s6 :%s",
 491                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 492     }
 493 }
 494
 495 void
 496 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 497 {
 498     if (strlen(input) == 6) {
 499         unsigned int value;
 500         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 501         value = base64toint(input, 6);
 502         if (value)
 503             ip->in6[5] = htons(65535);
 504         ip->in6[6] = htons(value >> 16);
 505         ip->in6[7] = htons(value & 65535);
 506     } else {
 507         unsigned int pos = 0;
 508         do {
 509             if (*input == '_') {
 510                 unsigned int left;
 511                 for (left = (25 - strlen(input)) / 3; left; left--)
 512                     ip->in6[pos++] = 0;
 513                 input++;
 514             } else {
 515                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 516                 input += 3;
 517             }
 518         } while (pos < 8);
 519     }
 520 }
 521
 522 void
 523 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 524 {
 525     if (!irc_in_addr_is_valid(*ip)) {
 526         strcpy(output, "AAAAAA");
 527     } else if (irc_in_addr_is_ipv4(*ip)) {
 528         unsigned int in4;
 529         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 530         inttobase64(output, in4, 6);
 531         output[6] = '\0';
 532     } else if (irc_in_addr_is_ipv6(*ip)) {
 533         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 534         /* Can start by printing out the leading non-zero parts. */
 535         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 536             inttobase64(output, ntohs(ip->in6[ii]), 3);
 537             output += 3;
 538         }
 539         /* Find the longest run of zeros. */
 540         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 541             if (!ip->in6[ii])
 542                 curr_zeros++;
 543             else if (curr_zeros > max_zeros) {
 544                 max_start = ii - curr_zeros;
 545                 max_zeros = curr_zeros;
 546                 curr_zeros = 0;
 547             }
 548         }
 549         if (curr_zeros > max_zeros) {
 550             max_start = ii - curr_zeros;
 551             max_zeros = curr_zeros;
 552             curr_zeros = 0;
 553         }
 554         /* Print the rest of the address */
 555         for (ii = zero; ii < 8; ) {
 556             if ((ii == max_start) && max_zeros) {
 557                 *output++ = '_';
 558                 ii += max_zeros;
 559             } else {
 560                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 561                 output += 3;
 562             }
 563         }
 564         *output = '\0';
 565     } else {
 566         strcpy(output, "???");
 567     }
 568 }
 569
 570 void
 571 irc_user(struct userNode *user)
 572 {
 573     char b64ip[25];
 574     if (!user)
 575         return;
 576     irc_p10_ntop(b64ip, &user->ip);
 577     if (user->modes) {
 578         int modelen;
 579         char modes[32];
 580
 581         modelen = 0;
 582         if (IsOper(user))
 583             modes[modelen++] = 'o';
 584         if (IsInvisible(user))
 585             modes[modelen++] = 'i';
 586         if (IsWallOp(user))
 587             modes[modelen++] = 'w';
 588         if (IsService(user))
 589             modes[modelen++] = 'k';
 590         if (IsServNotice(user))
 591             modes[modelen++] = 's';
 592         if (IsDeaf(user))
 593             modes[modelen++] = 'd';
 594         if (IsGlobal(user))
 595             modes[modelen++] = 'g';
 596         // sethost - reed/apples
 597         // if (IsHelperIrcu(user))
 598         if (IsSetHost(user))
 599             modes[modelen++] = 'h';
 600         if (IsFakeHost(user))
 601             modes[modelen++] = 'f';
 602         if (IsHiddenHost(user))
 603             modes[modelen++] = 'x';
 604         if (IsBotM(user))
 605             modes[modelen++] = 'B';
 606         if (IsHideChans(user))
 607             modes[modelen++] = 'n';
 608         if (IsHideIdle(user))
 609             modes[modelen++] = 'I';
 610         if (IsXtraOp(user))
 611             modes[modelen++] = 'X';
 612
 613         modes[modelen] = 0;
 614
 615         /* we don't need to put the + in modes because it's in the format string. */
 616         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 617                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 618     } else {
 619         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 620                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 621     }
 622 }
 623
 624 void
 625 irc_rename(struct userNode *user, const char *new_handle)
 626 {
 627     if(extended_accounts)
 628         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 629 }
 630
 631 void
 632 irc_delete(struct userNode *user)
 633 {
 634     if(extended_accounts)
 635         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 636 }
 637
 638 void
 639 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 640 {
 641     if(extended_accounts)
 642         putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 643     else
 644         putsock("%s " P10_ACCOUNT " %s %s %lu", self->numeric, user->numeric, stamp, timestamp);
 645 }
 646
 647 void
 648 irc_fakehost(struct userNode *user, const char *host)
 649 {
 650     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 651 }
 652
 653 void
 654 irc_regnick(UNUSED_ARG(struct userNode *user))
 655 {
 656     /* no operation here */
 657 }
 658
 659 void
 660 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 661 {
 662     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 663 }
 664
 665 void
 666 irc_fetchtopic(struct userNode *from, const char *to)
 667 {
 668     if (!from || !to)
 669         return;
 670     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 671 }
 672
 673 void
 674 irc_squit(struct server *srv, const char *message, const char *service_message)
 675 {
 676     if (!service_message)
 677         service_message = message;
 678
 679     /* Are we leaving the network? */
 680     if (srv == self && cManager.uplink->state == CONNECTED) {
 681         unsigned int i;
 682
 683         /* Quit all clients linked to me. */
 684         for (i = 0; i <= self->num_mask; i++) {
 685             if (!self->users[i])
 686                 continue;
 687             irc_quit(self->users[i], service_message);
 688         }
 689     }
 690
 691     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 692
 693     if (srv == self) {
 694         /* Force a reconnect to the currently selected server. */
 695         cManager.uplink->tries = 0;
 696         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 697         close_socket();
 698     }
 699 }
 700
 701 void
 702 irc_wallchops(struct userNode *from, const char *to, const char *message)
 703 {
 704     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 705 }
 706
 707 void
 708 irc_wallops(const char *format, ...)
 709 {
 710     va_list arg_list;
 711     char buffer[MAXLEN];
 712     va_start(arg_list, format);
 713     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 714     buffer[MAXLEN-1] = 0;
 715     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 716 }
 717
 718
 719 void
 720 irc_notice(struct userNode *from, const char *to, const char *message)
 721 {
 722     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 723 }
 724
 725 void
 726 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 727 {
 728     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 729 }
 730
 731 void
 732 irc_privmsg(struct userNode *from, const char *to, const char *message)
 733 {
 734     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 735 }
 736
 737 void
 738 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 739 {
 740     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 741 }
 742
 743 void
 744 irc_version_user(struct userNode *from, struct userNode *to)
 745 {
 746     irc_privmsg_user(from, to, "\001VERSION\001");
 747 }
 748
 749 void
 750 irc_eob(void)
 751 {
 752     putsock("%s " P10_EOB, self->numeric);
 753 }
 754
 755 void
 756 irc_eob_ack(void)
 757 {
 758     putsock("%s " P10_EOB_ACK, self->numeric);
 759
 760     char *nick;
 761     const char *str;
 762     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 763     nick = strdup(str);
 764
 765     if (nick && (DefConLevel < 5)) {
 766         DefConProcess(GetUserH(nick));
 767
 768         if (DefConTimeOut > 0)
 769             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 770     }
 771 }
 772
 773 void
 774 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 775 {
 776     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 777 }
 778
 779 void
 780 irc_ping(const char *payload)
 781 {
 782     putsock("%s " P10_PING " :%s", self->numeric, payload);
 783 }
 784
 785 void
 786 irc_pong(const char *who, const char *data)
 787 {
 788     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 789 }
 790
 791 void
 792 irc_pong_asll(const char *who, const char *orig_ts)
 793 {
 794     char *delim;
 795     struct timeval orig;
 796     struct timeval now;
 797     int diff;
 798
 799     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 800     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 801     gettimeofday(&now, NULL);
 802     diff = (now.tv_sec - orig.tv_sec) * 1000 + (now.tv_usec - orig.tv_usec) / 1000;
 803     putsock("%s " P10_PONG " %s %s %d " FMT_TIME_T ".%06u", self->numeric, who, orig_ts, diff, now.tv_sec, (unsigned)now.tv_usec);
 804 }
 805
 806 void
 807 irc_pass(const char *passwd)
 808 {
 809     putsock(P10_PASS " :%s", passwd);
 810 }
 811
 812 void
 813 irc_introduce(const char *passwd)
 814 {
 815     void timed_send_ping(void *data);
 816
 817     self->self_burst = self->burst = 1;
 818     irc_pass(passwd);
 819     irc_server(self);
 820     burst_length = 0;
 821     timeq_add(now + ping_freq, timed_send_ping, 0);
 822 }
 823
 824 void
 825 irc_gline(struct server *srv, struct gline *gline, int silent)
 826 {
 827     putsock("%s " P10_GLINE " %s +%s %ld %ld :%s<%s> %s",
 828             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 829 }
 830
 831 void
 832 irc_shun(struct server *srv, struct shun *shun)
 833 {
 834     putsock("%s " P10_SHUN " %s +%s %ld :<%s> %s",
 835             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 836 }
 837
 838 void
 839 irc_settime(const char *srv_name_mask, time_t new_time)
 840 {
 841     ioset_set_time(new_time);
 842     if (!strcmp(srv_name_mask, "*"))
 843         srv_name_mask = "";
 844     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 845 }
 846
 847 void
 848 irc_ungline(const char *mask)
 849 {
 850     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 851 }
 852
 853 void
 854 irc_unshun(const char *mask)
 855 {
 856     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 857 }
 858
 859 static void
 860 irc_burst(struct chanNode *chan)
 861 {
 862     char burst_line[512];
 863     int pos, base_len, len;
 864     struct modeNode *mn;
 865     struct banNode *bn;
 866     struct exemptNode *en;
 867     long last_mode=-1;
 868     unsigned int n;
 869
 870     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 871                        self->numeric, chan->name, chan->timestamp);
 872     len = irc_make_chanmode(chan, burst_line+base_len);
 873     pos = base_len + len;
 874     if (len)
 875         burst_line[pos++] = ' ';
 876
 877     if(chan->members.used < 1)
 878         return; /* dont burst empty channels (created by discrims) */
 879     /* dump the users */
 880     for (n=0; n<chan->members.used; n++) {
 881         mn = chan->members.list[n];
 882         if (pos > 500) {
 883             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 884             putsock("%s", burst_line);
 885             pos = base_len;
 886             last_mode = -1;
 887         }
 888
 889         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 890         pos += strlen(mn->user->numeric);
 891         if (mn->modes && (mn->modes != last_mode)) {
 892             last_mode = mn->modes;
 893             burst_line[pos++] = ':';
 894             if (last_mode & MODE_CHANOP)
 895                 burst_line[pos++] = 'o';
 896             if (last_mode & MODE_HALFOP)
 897                 burst_line[pos++] = 'h';
 898             if (last_mode & MODE_VOICE)
 899                 burst_line[pos++] = 'v';
 900         }
 901         if ((n+1)<chan->members.used)
 902             burst_line[pos++] = ',';
 903     }
 904     if (chan->banlist.used) {
 905         /* dump the bans */
 906         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 907             burst_line[pos-1] = 0;
 908             putsock("%s", burst_line);
 909             pos = base_len;
 910         } else {
 911             burst_line[pos++] = ' ';
 912         }
 913
 914         burst_line[pos++] = ':';
 915         burst_line[pos++] = '%';
 916         base_len = pos;
 917         for (n=0; n<chan->banlist.used; n++) {
 918             bn = chan->banlist.list[n];
 919             len = strlen(bn->ban);
 920             if (pos+len+1 > 510) {
 921                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 922                 putsock("%s", burst_line);
 923                 pos = base_len;
 924             }
 925             memcpy(burst_line+pos, bn->ban, len);
 926             pos += len;
 927             burst_line[pos++] = ' ';
 928         }
 929     }
 930     if (chan->exemptlist.used) {
 931         /* dump the exempt */
 932         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 933             burst_line[pos-1] = 0;
 934             putsock("%s", burst_line);
 935             pos = base_len;
 936         } else {
 937             burst_line[pos++] = ' ';
 938         }
 939
 940         burst_line[pos++] = ' ';
 941         burst_line[pos++] = '~';
 942         burst_line[pos++] = ' ';
 943         base_len = pos;
 944         for (n=0; n<chan->exemptlist.used; n++) {
 945             en = chan->exemptlist.list[n];
 946             len = strlen(en->exempt);
 947             if (pos+len+1 > 510) {
 948                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 949                 putsock("%s", burst_line);
 950                 pos = base_len;
 951             }
 952             memcpy(burst_line+pos, en->exempt, len);
 953             pos += len;
 954             burst_line[pos++] = ' ';
 955         }
 956     }
 957     /* print the last line */
 958     burst_line[pos] = 0;
 959     putsock("%s", burst_line);
 960 }
 961
 962 void
 963 irc_quit(struct userNode *user, const char *message)
 964 {
 965     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 966 }
 967
 968 void
 969 irc_error(const char *to, const char *message)
 970 {
 971     if (to) {
 972         putsock("%s " P10_ERROR " :%s", to, message);
 973     } else {
 974         putsock(":%s " P10_ERROR " :%s", self->name, message);
 975     }
 976 }
 977
 978 void
 979 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 980 {
 981     if (from) {
 982         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 983                 from->numeric, target->numeric, self->name, from->nick, message);
 984     } else {
 985         putsock("%s " P10_KILL " %s :%s (%s)",
 986                 self->numeric, target->numeric, self->name, message);
 987     }
 988 }
 989
 990 void
 991 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 992 {
 993     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 994     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 995             (from ? from->numeric : self->numeric),
 996             target->name, modes, target->timestamp);
 997 }
 998
 999 /* Added to allow services to mode users
1000    2005 - 8 - 10 by Life4Christ
1001 */
1002 void
1003 irc_umode(struct userNode *target, const char *modes)
1004 {
1005     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
1006 }
1007
1008
1009 void
1010 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
1011 {
1012     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
1013 }
1014
1015 void
1016 irc_silence(struct userNode *who, const char *mask, int add)
1017 {
1018     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
1019 }
1020
1021 void
1022 irc_join(struct userNode *who, struct chanNode *what)
1023 {
1024     if (what->members.used == 1) {
1025         putsock("%s " P10_CREATE " %s %lu",
1026                 who->numeric, what->name, what->timestamp);
1027     } else {
1028         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
1029     }
1030 }
1031
1032 void
1033 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1034 {
1035     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1036 }
1037
1038 void
1039 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1040 {
1041     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1042 }
1043
1044 void
1045 irc_svsquit(struct userNode *from, struct userNode *who, char *reason)
1046 {
1047     putsock("%s " P10_SVSQUIT " %s :%s", from->uplink->numeric, who->numeric, reason);
1048 }
1049
1050 void
1051 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1052 {
1053     const char *numeric;
1054     struct modeNode *mn = GetUserMode(channel, who);
1055     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1056     putsock("%s " P10_KICK " %s %s :%s",
1057             numeric, channel->name, target->numeric, msg);
1058 }
1059
1060 void
1061 irc_stats(struct userNode *from, struct server *target, char type)
1062 {
1063     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1064 }
1065
1066 void
1067 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1068 {
1069     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1070 }
1071
1072 void
1073 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1074 {
1075     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1076                                          message ? message : "");
1077
1078 }
1079
1080 void
1081 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1082 {
1083     if (reason) {
1084         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1085     } else {
1086         putsock("%s " P10_PART " %s", who->numeric, what->name);
1087     }
1088 }
1089
1090 void
1091 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1092 {
1093
1094    int type = 4;
1095    int host_in_topic = 0;
1096    const char *hstr, *tstr;
1097    char *host, *hostmask;
1098    char shost[MAXLEN];
1099    char sident[MAXLEN];
1100
1101    tstr = conf_get_data("server/type", RECDB_QSTRING);
1102    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1103    if(tstr)
1104      type = atoi(tstr);
1105    else
1106      type = 4;/* default to 040 style topics */
1107
1108    if (hstr) {
1109       if (IsFakeHost(who))
1110           safestrncpy(shost, who->fakehost, sizeof(shost));
1111       else if (IsSetHost(who)) {
1112           hostmask = strdup(who->sethost);
1113           if ((host = (strrchr(hostmask, '@'))))
1114               *host++ = '\0';
1115           else
1116               host = hostmask;
1117
1118           safestrncpy(sident, hostmask, sizeof(shost));
1119           safestrncpy(shost, host, sizeof(shost));
1120       } else
1121           safestrncpy(shost, who->hostname, sizeof(shost));
1122
1123       host_in_topic = atoi(hstr);
1124    }
1125
1126    if (type >= 5) {
1127      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1128              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1129              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1130    } else {
1131      who = service;
1132      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1133    }
1134 }
1135
1136 void
1137 irc_raw(const char *what)
1138 {
1139     putsock("%s", what);
1140 }
1141
1142 void
1143 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1144 {
1145     va_list arg_list;
1146     char buffer[MAXLEN];
1147     va_start(arg_list, format);
1148     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1149     buffer[MAXLEN-1] = 0;
1150     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1151 }
1152
1153 void
1154 irc_mark(struct userNode *user, char *mark)
1155 {
1156     char *host = user->hostname;
1157
1158     /* 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 */
1159     if(user->mark)
1160         return;
1161
1162     /* if the mark will put us over the  host length, clip some off the left hand side
1163      * to make room...
1164      */
1165     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1166         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1167     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1168     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1169
1170     /* Save it in the user */
1171     user->mark = strdup(mark);
1172
1173     /* If they are not otherwise marked, mark their host with fakehost */
1174     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1175     {
1176         struct modeNode *mn = NULL;
1177         char fakehost[HOSTLEN];
1178         unsigned int count = 0;
1179         unsigned int n = 0;
1180
1181         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1182         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1183
1184         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1185         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1186
1187         for (n=count=0; n<user->channels.used; n++) {
1188             mn = user->channels.list[n];
1189             if (strlen(mn->channel->name) >= 1) /* Sanity */
1190                 check_bans(user, mn->channel->name);
1191         }
1192     }
1193 }
1194
1195 static void send_burst(void);
1196
1197 static void
1198 change_nicklen(int new_nicklen)
1199 {
1200     unsigned int nn;
1201     char new_nick[NICKLEN+1];
1202     struct userNode *user;
1203
1204     nicklen = new_nicklen;
1205     /* fix up any users we have here */
1206     for (nn=0; nn<=self->num_mask; nn++) {
1207         if (!(user = self->users[nn]))
1208             continue;
1209         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1210         new_nick[nicklen] = 0;
1211         NickChange(user, new_nick, 1);
1212     }
1213 }
1214
1215 static CMD_FUNC(cmd_whois)
1216 {
1217     struct userNode *from;
1218     struct userNode *who;
1219
1220     if (argc < 3)
1221         return 0;
1222     if (!(from = GetUserH(origin))) {
1223         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1224         return 0;
1225     }
1226     if(!(who = GetUserH(argv[2]))) {
1227         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1228         return 1;
1229     }
1230     if (IsHiddenHost(who) && !IsOper(from)) {
1231         /* Just stay quiet. */
1232         return 1;
1233     }
1234     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1235     if (his_servername && his_servercomment)
1236         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1237     else
1238         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1239     if (IsOper(who))
1240         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
1241     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1242     return 1;
1243 }
1244
1245 static CMD_FUNC(cmd_server)
1246 {
1247     struct server *srv;
1248     const char *str;
1249
1250     if (argc < 8)
1251         return 0;
1252     if (self->uplink) {
1253         /* another server introduced us */
1254         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1255         if (!srv)
1256             return 0;
1257         srv->self_burst = argv[5][0] == 'J';
1258         srv->burst = 1;
1259     } else {
1260         /* this must be our uplink */
1261         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1262         if (!srv)
1263             return 0;
1264         srv->self_burst = argv[5][0] == 'J';
1265         srv->burst = 1;
1266         if ((argv[7][0] == '+') && !force_n2k) {
1267             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1268         }
1269         send_burst();
1270     }
1271
1272     /* Fix up our timestamps if necessary. */
1273     if (srv->boot <= PREHISTORY) {
1274         /* Server from the mists of time.. */
1275         if (srv->hops == 1) {
1276             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1277         }
1278     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1279                && enabled_string(str)) {
1280         /* If we have a reliable clock, we just keep our current time. */
1281     } else {
1282         if (srv->boot <= self->boot) {
1283             /* The other server is older than us.  Accept their timestamp.
1284              * Alternately, we are same age, but we accept their time
1285              * since we are linking to them. */
1286             self->boot = srv->boot;
1287             ioset_set_time(srv->link);
1288         }
1289     }
1290     if (srv == self->uplink) {
1291         extern time_t burst_begin;
1292         burst_begin = now;
1293     }
1294     return 1;
1295 }
1296
1297
1298 static CMD_FUNC(cmd_eob)
1299 {
1300     struct server *sender;
1301     dict_iterator_t it;
1302     unsigned int ii;
1303
1304     if (!(sender = GetServerH(origin)))
1305         return 0;
1306     if (sender == self->uplink) {
1307         cManager.uplink->state = CONNECTED;
1308         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1309             irc_burst(iter_data(it));
1310         dict_delete(unbursted_channels);
1311         unbursted_channels = NULL;
1312         irc_eob();
1313         irc_eob_ack();
1314
1315         /* now that we know who our uplink is,
1316          * we can center the routing map and activate auto-routing.
1317          */
1318         //activate_routing(NULL, NULL, NULL);
1319         routing_init();
1320     }
1321     sender->self_burst = 0;
1322     recalc_bursts(sender);
1323     for (ii=0; ii<slf_used; ii++)
1324         slf_list[ii](sender);
1325     /* let auto-routing figure out if we were
1326      * wating on this server to link a child to it */
1327     /* DONT call this if uplink is _US_ */
1328     if(sender->uplink != self)
1329         routing_handle_connect(sender->name, sender->uplink->name);
1330     return 1;
1331 }
1332
1333 static CMD_FUNC(cmd_eob_ack)
1334 {
1335     extern time_t burst_begin;
1336
1337     if (GetServerH(origin) == self->uplink) {
1338         burst_length = now - burst_begin;
1339         self->self_burst = self->burst = 0;
1340     }
1341     cManager.uplink->state = CONNECTED;
1342     return 1;
1343 }
1344
1345 static CMD_FUNC(cmd_rping)
1346 {
1347     struct server *dest;
1348
1349     if (!(dest = GetServerN(argv[1])))
1350         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1351
1352     if (dest == self)
1353         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1354
1355     return 1;
1356 }
1357
1358 static CMD_FUNC(cmd_ping)
1359 {
1360     struct server *srv;
1361     struct userNode *un;
1362
1363     if (argc > 3)
1364         irc_pong_asll(argv[2], argv[3]);
1365     else if ((srv = GetServerH(origin)))
1366         irc_pong(self->name, srv->numeric);
1367     else if ((un = GetUserH(origin)))
1368         irc_pong(self->name, un->numeric);
1369     else
1370         irc_pong(self->name, origin);
1371
1372     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1373     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1374     timeq_add(now + ping_freq, timed_send_ping, 0);
1375     received_ping();
1376     return 1;
1377 }
1378
1379 static CMD_FUNC(cmd_error_nick)
1380 {
1381     /* Go back to original IRC length .. and try to reconnect :/ */
1382     change_nicklen(9);
1383     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1384     return 1;
1385 }
1386
1387 struct create_desc {
1388     struct userNode *user;
1389     time_t when;
1390 };
1391
1392 static void
1393 join_helper(struct chanNode *chan, void *data)
1394 {
1395     struct create_desc *cd = data;
1396     AddChannelUser(cd->user, chan);
1397 }
1398
1399 static void
1400 create_helper(char *name, void *data)
1401 {
1402     struct create_desc *cd = data;
1403
1404     if (!strcmp(name, "0")) {
1405         while (cd->user->channels.used > 0)
1406             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1407         return;
1408     }
1409
1410     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1411 }
1412
1413 static CMD_FUNC(cmd_create)
1414 {
1415     struct create_desc cd;
1416     struct userNode *user;
1417
1418     if ((argc < 3) || !(user = GetUserH(origin)))
1419         return 0;
1420     cd.user = user;
1421     cd.when = atoi(argv[2]);
1422     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1423     return 1;
1424 }
1425
1426 static CMD_FUNC(cmd_join)
1427 {
1428     struct create_desc cd;
1429
1430     if (!(cd.user = GetUserH(origin)))
1431         return 0;
1432     if (argc < 2)
1433         return 0;
1434     else if (argc < 3)
1435         cd.when = now;
1436     else
1437         cd.when = atoi(argv[2]);
1438     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1439     return 1;
1440 }
1441
1442 static CMD_FUNC(cmd_svsjoin)
1443 {
1444     struct create_desc cd;
1445
1446     if (!(cd.user = GetUserH(argv[1])))
1447         return 0;
1448     if (argc < 3)
1449         return 0;
1450     else if (argc < 4)
1451         cd.when = now;
1452     else
1453         cd.when = atoi(argv[3]);
1454     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1455     return 1;
1456 }
1457
1458 static CMD_FUNC(cmd_pong)
1459 {
1460     if (argc < 3)
1461         return 0;
1462     if (!strcmp(argv[2], self->name)) {
1463         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1464         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1465         timeq_add(now + ping_freq, timed_send_ping, 0);
1466         received_ping();
1467     }
1468     return 1;
1469 }
1470
1471 static CMD_FUNC(cmd_nick)
1472 {
1473     struct userNode *user;
1474     if ((user = GetUserH(origin))) {
1475         /* nick change (since the source is a user numeric) */
1476         if (argc < 2)
1477             return 0;
1478         NickChange(user, argv[1], 1);
1479     } else {
1480         struct server *serv;
1481         struct userNode *nuser;
1482         char modes[MAXLEN];
1483         /* new nick */
1484         if (argc < 9)
1485             return 0;
1486         serv = GetServerH(origin);
1487         if (argc > 9)
1488             unsplit_string(argv+6, argc-9, modes);
1489         else
1490             strcpy(modes, "+");
1491         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1492     }
1493     return 1;
1494 }
1495
1496 static CMD_FUNC(cmd_account)
1497 {
1498     struct userNode *user;
1499     struct server *server;
1500     struct handle_info *hi;
1501
1502     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1503         return 0; /* Origin must be server. */
1504
1505     /* This next line appears to tremple origin.. why? */
1506     user = GetUserN(argv[1]);
1507     if (!user)
1508         return 1; /* A QUIT probably passed the ACCOUNT. */
1509
1510     if(!extended_accounts) /* any need for this function without? */
1511         return 1;
1512
1513     if(!strcmp(argv[2],"C"))
1514     {
1515         if((hi = loc_auth(argv[4], argv[5], NULL)))
1516         {
1517             /* Return a AC A */
1518             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1519
1520         }
1521         else
1522         {
1523             /* Return a AC D */
1524             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1525         }
1526         return 1;
1527     }
1528     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1529     {
1530         if((hi = loc_auth(argv[5], argv[6], argv[4] )))
1531         {
1532             /* Return a AC A */
1533             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1534
1535         }
1536         else
1537         {
1538             /* Return a AC D */
1539             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1540         }
1541         return 1;
1542     }
1543     else if(!strcmp(argv[2],"R"))
1544        call_account_func(user, argv[3]);
1545     else
1546         call_account_func(user, argv[2]); /* For backward compatability */
1547     return 1;
1548 }
1549
1550 static CMD_FUNC(cmd_fakehost)
1551 {
1552     struct userNode *user;
1553
1554     if ((argc < 3) || !origin || !GetServerH(origin))
1555         return 0;
1556     if (!(user = GetUserN(argv[1])))
1557         return 1;
1558     assign_fakehost(user, argv[2], 0);
1559     return 1;
1560 }
1561
1562 static struct {
1563   char        *name;
1564   unsigned int priv;
1565 } privtab[] = {
1566 #define P(priv)         { #priv, PRIV_ ## priv }
1567   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1568   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1569   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1570   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1571   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1572   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1573   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1574   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1575   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1576   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1577   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS),
1578 #undef P
1579   { 0, 0 }
1580 };
1581
1582 char *client_report_privs(struct userNode *client)
1583 {
1584   int i;
1585
1586   privbuf[0] = '\0';
1587   for (i = 0; privtab[i].name; i++) {
1588     if (HasPriv(client, privtab[i].priv)) {
1589       strcat(privbuf, privtab[i].name);
1590       strcat(privbuf, " ");
1591     }
1592   }
1593
1594   privbuf[strlen(privbuf)] = 0;
1595
1596   return privbuf;
1597 }
1598
1599 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1600  int i = 0;
1601  assert(0 != priv);
1602  assert(0 != who);
1603
1604   for (i = 0; privtab[i].name; i++) {
1605     if (0 == strcmp(privtab[i].name, priv)) {
1606       if (what == PRIV_ADD)
1607         GrantPriv(who, privtab[i].priv);
1608       else if (what == PRIV_DEL) {
1609         RevokePriv(who, privtab[i].priv);
1610       }
1611     }
1612   }
1613   return 0;
1614 }
1615
1616 int check_priv(char *priv)
1617 {
1618   int i;
1619
1620   for (i = 0; privtab[i].name; i++) {
1621     if (0 == strcmp(privtab[i].name, priv)) {
1622       return 1;
1623     }
1624   }
1625   return 0;
1626 }
1627
1628 void
1629 irc_privs(struct userNode *target, char *flag, int add)
1630 {
1631     client_modify_priv_by_name(target, flag, add);
1632     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1633 }
1634
1635 static CMD_FUNC(cmd_privs)
1636 {
1637   char *tstr = NULL;
1638   int type = 0;
1639
1640   tstr = conf_get_data("server/type", RECDB_QSTRING);
1641   if(tstr)
1642     type = atoi(tstr);
1643
1644   if (type < 6)
1645     return 1; /* silently ignore */
1646
1647   struct userNode *user = argc > 1 ? GetUserN(argv[1]) : NULL;
1648   char buf[512] = "";
1649   int what = PRIV_ADD;
1650   char *p = 0;
1651   char *tmp;
1652   unsigned int i;
1653
1654   if (argc < 3)
1655     return 0;
1656
1657   if (!user)
1658     return 0;
1659
1660   for (i=1; i<argc; i++) {
1661     strcat(buf, argv[i]);
1662     strcat(buf, " ");
1663   }
1664
1665   for (i = 2; i < argc; i++) {
1666     if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1667     if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1668     for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1669          tmp = x3_strtok(&p, NULL, ",")) {
1670       client_modify_priv_by_name(user, tmp, what);
1671     }
1672   }
1673   return 1;
1674 }
1675
1676 static CMD_FUNC(cmd_burst)
1677 {
1678     extern int rel_age;
1679     char modes[MAXLEN], *members = "";
1680     static char exemptlist[MAXLEN], banlist[MAXLEN];
1681     unsigned int next = 3, res = 1;
1682     int ctype = 0, echeck = 0, bcheck = 0;
1683     struct chanData *cData;
1684     struct chanNode *cNode;
1685     struct userNode *un;
1686     struct modeNode *mNode;
1687     long mode;
1688     int oplevel = -1;
1689     char *user, *end, sep;
1690     time_t in_timestamp;
1691     char* parm = NULL;
1692
1693     if (argc < 3)
1694         return 0;
1695     modes[0] = 0;
1696
1697     exemptlist[0] = 0;
1698     banlist[0] = 0;
1699
1700     while (next < argc) {
1701         switch (argv[next][0]) {
1702         case '+': {
1703             const char *pos;
1704             int n_modes;
1705             for (pos=argv[next], n_modes = 1; *pos; pos++)
1706                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1707                     || (*pos == 'U'))
1708                     n_modes++;
1709             unsplit_string(argv+next, n_modes, modes);
1710             next += n_modes;
1711             break;
1712         }
1713         case '%': {
1714             for(parm = mysep(&argv[next], " "); /* parm = first param */
1715                   parm;   /* While param is not null */
1716                   parm = mysep(&argv[next], " ")  /* parm = next param */
1717                )
1718             {
1719               switch (parm[0]) {
1720                 case '%': {
1721                   ctype = 1;
1722                   break;
1723                 }
1724                 case '~': {
1725                   ctype = 2;
1726                   break;
1727                 }
1728                 default: {
1729                   break;
1730                 }
1731               }
1732               if (ctype == 1) {
1733                 if (bcheck == 0) {
1734                   /* strip % char off start of very first ban */
1735                   if (strlen(parm) > 1) {
1736                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1737                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1738                   }
1739                   bcheck = 1;
1740                 } else {
1741                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1742                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1743                 }
1744               } else if (ctype == 2) {
1745                 if (echeck == 0) {
1746                    echeck = 1;
1747                 } else {
1748                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1749                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1750                 }
1751               }
1752             }
1753             next++;
1754             break;
1755         }
1756         default: members = argv[next++]; break;
1757       }
1758     }
1759
1760     in_timestamp = atoi(argv[2]);
1761     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1762         cNode->timestamp = in_timestamp;
1763         dict_remove(unbursted_channels, cNode->name);
1764         irc_burst(cNode);
1765     }
1766     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1767     cData = cNode->channel_info;
1768
1769     if (!cData) {
1770         if (cNode->modes & MODE_REGISTERED) {
1771             irc_join(opserv, cNode);
1772             irc_mode(opserv, cNode, "-z");
1773             irc_part(opserv, cNode, "");
1774         }
1775     }
1776
1777     /* Burst channel members in now. */
1778     for (user = members, sep = *members, mode = 0; sep; user = end) {
1779         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1780         sep = *end++; end[-1] = 0;
1781         if (sep == ':') {
1782             mode = 0;
1783             while ((sep = *end++)) {
1784                 if (sep == 'o') {
1785                     mode |= MODE_CHANOP;
1786                     oplevel = -1;
1787                 } else if (sep == 'h') {
1788                     mode |= MODE_HALFOP;
1789                     oplevel = -1;
1790                 } else if (sep == 'v') {
1791                     mode |= MODE_VOICE;
1792                     oplevel = -1;
1793                 } else if (isdigit(sep)) {
1794                     mode |= MODE_CHANOP;
1795                     if (oplevel >= 0)
1796                         oplevel += parse_oplevel(end);
1797                     else
1798                         oplevel = parse_oplevel(end);
1799                     while (isdigit(*end)) end++;
1800                 } else
1801                     break;
1802             }
1803             if (rel_age < 0)
1804                 mode = 0;
1805         }
1806         if (!(un = GetUserN(user))) {
1807             res = 0;
1808             continue;
1809         }
1810         if ((mNode = AddChannelUser(un, cNode))) {
1811             mNode->modes = mode;
1812             mNode->oplevel = oplevel;
1813         }
1814     }
1815
1816     return res;
1817 }
1818
1819 /* TODO:
1820  * This is a stub that doesn't actually do anything. It should be completed
1821  * so that bans on *!*@markname.* match users as it does in nefarious
1822  */
1823 static CMD_FUNC(cmd_mark)
1824 {
1825     struct userNode *target;
1826     /*
1827      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1828      */
1829
1830     if(argc < 4)
1831         return 0;
1832     if(!strcasecmp(argv[2], "DNSBL")) {
1833         /* DNSBL <modes> */
1834         return 1;
1835     }
1836     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1837         /* DNSBL_DATA name */
1838         target = GetUserH(argv[1]);
1839         if(!target) {
1840             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1841             return 0;
1842         }
1843         target->mark = strdup(argv[3]);
1844         return 1;
1845
1846     }
1847     else if(!strcasecmp(argv[2], "CVERSION")) {
1848         /* DNSBL_DATA name */
1849         target = GetUserH(argv[1]);
1850         if(!target) {
1851             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1852             return 0;
1853         }
1854
1855         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1856         if(!version)
1857             version = "";
1858
1859         target->version_reply = strdup(version);
1860
1861         if(match_ircglob(version, "WebTV;*"))
1862             target->no_notice = true; /* webbies cant see notices */
1863
1864         return 1;
1865     }
1866     /* unknown type of mark */
1867     return 1;
1868 }
1869
1870 static CMD_FUNC(cmd_mode)
1871 {
1872     struct chanNode *cn;
1873     struct userNode *un;
1874     char *sethost; // sethost - reed/apples
1875     int i; // sethost - reed/apples
1876
1877     if (argc < 3)
1878         return 0;
1879     if (!IsChannelName(argv[1])) {
1880         un = GetUserH(argv[1]);
1881         if (!un) {
1882             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1883             return 0;
1884         }
1885         // sethost - reed/apples
1886         if (argc == 3)
1887         mod_usermode(un, argv[2]);
1888         else {
1889           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1890           i = 0;
1891           while((sethost[i++] = *argv[2]++));
1892           i--;
1893          sethost[i++] = ' ';
1894           while((sethost[i++] = *argv[3]++));
1895           mod_usermode(un, sethost); // sethost - reed/apples
1896         }
1897
1898         return 1;
1899     }
1900
1901     if (!(cn = GetChannel(argv[1]))) {
1902         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1903         return 0;
1904     }
1905     if ((un = GetUserH(origin))) {
1906         struct modeNode *mn;
1907         /* Update idle time for person setting the mode */
1908         if ((mn = GetUserMode(cn, un)))
1909             mn->idle_since = now;
1910     } else {
1911         /* If it came from a server, reset timestamp to re-sync. */
1912         cn->timestamp = atoi(argv[argc-1]);
1913     }
1914
1915     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
1916         const char *str;
1917         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
1918         if (str) {
1919             char modes[MODELEN];
1920             struct userNode *opserv = GetUserH(str);
1921
1922             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
1923             irc_make_chanmode(cn, modes);
1924             irc_mode(opserv, cn, modes);
1925             irc_mode(opserv, cn, DefConChanModes);
1926         }
1927         return 1;
1928     }
1929
1930
1931     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1932 }
1933
1934 static CMD_FUNC(cmd_opmode)
1935 {
1936     struct chanNode *cn;
1937     struct userNode *un;
1938
1939     if (argc < 3)
1940         return 0;
1941
1942     if (!(cn = GetChannel(argv[1]))) {
1943         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1944         return 0;
1945     }
1946     if (!(un = GetUserH(origin))) {
1947         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1948         return 0;
1949     }
1950     if (!IsOper(un)) {
1951         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1952         return 0;
1953     }
1954
1955     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1956 }
1957
1958 static int clear_chanmode(struct chanNode *channel, const char *modes);
1959
1960 static CMD_FUNC(cmd_clearmode)
1961 {
1962     struct chanNode *cn;
1963     struct userNode *un;
1964
1965     if (argc < 3)
1966         return 0;
1967
1968     if (!(cn = GetChannel(argv[1]))) {
1969         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1970         return 0;
1971     }
1972     if (!(un = GetUserH(origin))) {
1973         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1974         return 0;
1975     }
1976     if (!IsOper(un)) {
1977         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1978         return 0;
1979     }
1980
1981     return clear_chanmode(cn, argv[2]);
1982 }
1983
1984 static CMD_FUNC(cmd_topic)
1985 {
1986     struct chanNode *cn;
1987     time_t chan_ts, topic_ts;
1988     struct userNode *user;
1989
1990     if (argc < 3)
1991         return 0;
1992     if (!(cn = GetChannel(argv[1]))) {
1993         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1994         return 0;
1995     }
1996
1997
1998     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
1999         user = GetUserH(origin);
2000         chan_ts = atoi(argv[2]);
2001         topic_ts = atoi(argv[3]);
2002     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2003         user = GetUserH(strtok(argv[2], "!"));
2004         chan_ts = atoi(argv[3]);
2005         topic_ts = atoi(argv[4]);
2006     } else {                      /* Regular IRCu (No Topic Bursting)*/
2007         user = GetUserH(origin);
2008         chan_ts = cn->timestamp;
2009         topic_ts = now;
2010     }
2011
2012     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2013     cn->topic_time = topic_ts;
2014     return 1;
2015 }
2016
2017 static CMD_FUNC(cmd_num_topic)
2018 {
2019     struct chanNode *cn;
2020
2021     if (!argv[0])
2022         return 0; /* huh? */
2023     if (argv[2]) {
2024         cn = GetChannel(argv[2]);
2025         if (!cn) {
2026             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2027             return 0;
2028         }
2029     } else
2030         return 0;
2031
2032     switch (atoi(argv[0])) {
2033     case 331:
2034         cn->topic_time = 0;
2035         break;  /* no topic */
2036     case 332:
2037         if (argc < 4)
2038             return 0;
2039         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2040         break;
2041     case 333:
2042         if (argc < 5)
2043             return 0;
2044         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2045         cn->topic_time = atoi(argv[4]);
2046         break;
2047     default:
2048         return 0; /* should never happen */
2049     }
2050     return 1;
2051 }
2052
2053 static CMD_FUNC(cmd_num_gline)
2054 {
2055     if (argc < 7) {
2056         if (argc < 6)
2057             return 0;
2058         else
2059             gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2060     } else {
2061         if (argv[5] == "+")
2062           gline_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0, 0);
2063     }
2064     return 1;
2065 }
2066
2067 static CMD_FUNC(cmd_num_shun)
2068 {
2069     if (argc < 7) {
2070         if (argc < 6)
2071             return 0;
2072         else
2073             shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2074     } else {
2075         if (argv[5] == "+")
2076             shun_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0);
2077     }
2078     return 1;
2079 }
2080
2081 static CMD_FUNC(cmd_quit)
2082 {
2083     struct userNode *user;
2084     if (argc < 2)
2085         return 0;
2086     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2087      * call DelUser unless we have the user in our grasp. */
2088     if ((user = GetUserH(origin)))
2089         DelUser(user, NULL, false, argv[1]);
2090     return 1;
2091 }
2092
2093 static CMD_FUNC(cmd_kill)
2094 {
2095     struct userNode *user;
2096     if (argc < 2)
2097         return 0;
2098     user = GetUserN(argv[1]);
2099     if (!user) {
2100         /* If we get a KILL for a non-existent user, it could be a
2101          * Ghost response to a KILL we sent out earlier.  So we only
2102          * whine if the target is local.
2103          */
2104         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2105             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2106         return 0;
2107     }
2108
2109     if (IsLocal(user) && IsService(user)) {
2110         /* TODO: rate limit this so silly things don't happen. */
2111         ReintroduceUser(user);
2112         return 1;
2113     }
2114
2115     DelUser(user, NULL, false, argv[2]);
2116     return 1;
2117 }
2118
2119 static CMD_FUNC(cmd_part)
2120 {
2121     struct userNode *user;
2122
2123     if (argc < 2)
2124         return 0;
2125     user = GetUserH(origin);
2126     if (!user)
2127         return 0;
2128     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
2129     return 1;
2130 }
2131
2132 static CMD_FUNC(cmd_svspart)
2133 {
2134     struct userNode *user;
2135
2136     if (argc < 3)
2137         return 0;
2138     user = GetUserN(argv[1]);
2139     if (!user)
2140         return 0;
2141     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2142     return 1;
2143 }
2144
2145 static CMD_FUNC(cmd_silence)
2146 {
2147     struct userNode *user;
2148     char *mask;
2149     char *new_mask;
2150     unsigned int i;
2151
2152     if (argc < 2)
2153         return 0;
2154
2155     user = GetUserN(argv[1]);
2156
2157     /* Sanity, go nuts if this happens */
2158     if (!user)
2159         return 0;
2160
2161     /*  We can safely ignore this if a user adding a silence is not
2162      *  ignored. However this brings up a TODO. If a user logs in and
2163      *  they have silences on the IRCd then we need to set them here
2164      *  somehow
2165      */
2166     if (!user->handle_info)
2167         return 1;
2168
2169     mask = argv[2];
2170
2171     if (*mask == '-') {
2172         for (i=0; i<user->handle_info->ignores->used; i++) {
2173             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2174                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2175         }
2176     } else {
2177         for (i=0; i<user->handle_info->ignores->used; i++) {
2178             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2179                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2180         }
2181
2182         new_mask = strdup(mask+1);
2183         string_list_append(user->handle_info->ignores, new_mask);
2184     }
2185     return 1;
2186 }
2187
2188 static CMD_FUNC(cmd_kick)
2189 {
2190     if (argc < 3)
2191         return 0;
2192     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2193     return 1;
2194 }
2195
2196 static CMD_FUNC(cmd_squit)
2197 {
2198     struct server *server;
2199     char *uplink;
2200
2201     if (argc < 4)
2202         return 0;
2203     if (!(server = GetServerH(argv[1])))
2204         return 0;
2205
2206     if (server == self->uplink) {
2207         /* Force a reconnect to the currently selected server. */
2208         cManager.uplink->tries = 0;
2209         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2210         close_socket();
2211         return 1;
2212     }
2213
2214     uplink = strdup(server->uplink->name);
2215     DelServer(server, 0, argv[3]);
2216     /* if its a pingout and pingout connecting is enabled
2217                or its a read error and readerror connecting is enabled
2218                or were doing a "N" and i need to connect that server somewhere */
2219     routing_handle_squit(argv[1], uplink, argv[3]);
2220     free(uplink);
2221     return 1;
2222 }
2223
2224 static CMD_FUNC(cmd_privmsg)
2225 {
2226     struct privmsg_desc pd;
2227     if (argc != 3)
2228         return 0;
2229     pd.user = GetUserH(origin);
2230     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2231         return 1;
2232
2233     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2234         const char *str;
2235         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2236         if (str)
2237             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2238         return 1;
2239     }
2240
2241     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2242         return 1; /* Silently Ignore */
2243
2244     pd.is_notice = 0;
2245     pd.text = argv[2];
2246     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2247
2248     return 1;
2249 }
2250
2251 static CMD_FUNC(cmd_notice)
2252 {
2253     struct privmsg_desc pd;
2254     struct server *srv;
2255     int nuser = 0;
2256
2257     if (argc != 3)
2258         return 0;
2259
2260     pd.user = GetUserH(origin);
2261     if(!pd.user)
2262         nuser = 1;
2263     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2264     }
2265     else {
2266         pd.is_notice = 1;
2267         pd.text = argv[2];
2268         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2269     }
2270
2271     srv = GetServerH(origin);
2272     if(srv) {
2273         char *sargv[MAXNUMPARAMS];
2274         int sargc;
2275
2276         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2277
2278         if(!strcasecmp(sargv[0], "Connect:")) {
2279             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2280             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2281                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2282             }
2283         }
2284         else if(!strcasecmp(sargv[0], "Link")) {
2285             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2286              *
2287              * :Link with laptop.afternet.org cancelled: Connection refused
2288              */
2289             if(!strcasecmp(sargv[3], "cancelled:")) {
2290                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2291             }
2292         }
2293     }
2294     return 1;
2295 }
2296
2297 static CMD_FUNC(cmd_away)
2298 {
2299     struct userNode *uNode;
2300
2301     uNode = GetUserH(origin);
2302     if (!uNode)
2303         return 1;
2304     if (argc < 2)
2305         uNode->modes &= ~FLAGS_AWAY;
2306     else
2307         uNode->modes |= FLAGS_AWAY;
2308     return 1;
2309 }
2310
2311 static CMD_FUNC(cmd_gline)
2312 {
2313     if (argc < 3)
2314         return 0;
2315     if (argv[2][0] == '+') {
2316         if (argc < 5)
2317             return 0;
2318         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2319         return 1;
2320     } else if (argv[2][0] == '-') {
2321         gline_remove(argv[2]+1, 0);
2322         return 1;
2323     } else
2324         return 0;
2325 }
2326
2327 static CMD_FUNC(cmd_sgline)
2328 {
2329     struct server *sender;
2330
2331     if (argc < 4)
2332         return 0;
2333
2334     if (!(sender = GetServerH(origin)))
2335         return 0;
2336
2337     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1, 0);
2338     return 1;
2339 }
2340
2341 static CMD_FUNC(cmd_sshun)
2342 {
2343     struct server *sender;
2344
2345     if (argc < 4)
2346         return 0;
2347
2348     if (!(sender = GetServerH(origin)))
2349         return 0;
2350
2351     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1);
2352     return 1;
2353 }
2354
2355 static CMD_FUNC(cmd_shun)
2356 {
2357     if (argc < 3)
2358         return 0;
2359     if (argv[2][0] == '+') {
2360         if (argc < 5)
2361             return 0;
2362         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2363         return 1;
2364     } else if (argv[2][0] == '-') {
2365         shun_remove(argv[2]+1, 0);
2366         return 1;
2367     } else
2368         return 0;
2369 }
2370
2371 static CMD_FUNC(cmd_svsnick)
2372 {
2373     struct userNode *target, *dest;
2374     if ((argc < 4)
2375         || !(target = GetUserN(argv[1]))
2376         || !IsLocal(target)
2377         || (dest = GetUserH(argv[2])))
2378         return 0;
2379     NickChange(target, argv[2], 0);
2380     return 1;
2381 }
2382
2383 static oper_func_t *of_list;
2384 static unsigned int of_size = 0, of_used = 0;
2385
2386 void
2387 free_user(struct userNode *user)
2388 {
2389     free(user->nick);
2390     free(user);
2391 }
2392
2393 static void
2394 parse_cleanup(void)
2395 {
2396     unsigned int nn;
2397     free(of_list);
2398     free(privmsg_funcs);
2399     free(notice_funcs);
2400     free(mcf_list);
2401     dict_delete(irc_func_dict);
2402     for (nn=0; nn<dead_users.used; nn++)
2403         free_user(dead_users.list[nn]);
2404     userList_clean(&dead_users);
2405 }
2406
2407 static void
2408 p10_conf_reload(void) {
2409     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2410 }
2411
2412 static void
2413 remove_unbursted_channel(struct chanNode *cNode) {
2414     if (unbursted_channels)
2415         dict_remove(unbursted_channels, cNode->name);
2416 }
2417
2418 void
2419 init_parse(void)
2420 {
2421     const char *str, *desc;
2422     int numnick, usermask, max_users;
2423     char numer[COMBO_NUMERIC_LEN+1];
2424
2425     /* read config items */
2426     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2427     extended_accounts = str ? enabled_string(str) : 1;
2428     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2429     ping_freq = str ? ParseInterval(str) : 120;
2430     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2431     ping_timeout = str ? ParseInterval(str) : 30;
2432     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2433     force_n2k = str ? enabled_string(str) : 1;
2434     str = conf_get_data("server/numeric", RECDB_QSTRING);
2435     if (!str) {
2436         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2437         exit(1);
2438     }
2439     numnick = atoi(str);
2440     str = conf_get_data("server/max_users", RECDB_QSTRING);
2441     max_users = str ? atoi(str) : 4096;
2442     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2443     usermask--;
2444     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2445         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2446     else
2447         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2448
2449     str = conf_get_data("server/his_servername", RECDB_QSTRING);
2450     his_servername = str ? strdup(str) : NULL;
2451     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2452     his_servercomment = str ? strdup(str) : NULL;
2453
2454     str = conf_get_data("server/hostname", RECDB_QSTRING);
2455     desc = conf_get_data("server/description", RECDB_QSTRING);
2456     if (!str || !desc) {
2457         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2458         exit(1);
2459     }
2460     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2461     conf_register_reload(p10_conf_reload);
2462
2463     irc_func_dict = dict_new();
2464     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2465     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2466     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2467     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2468     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2469     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2470     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2471     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2472     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2473     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2474     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2475     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2476     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2477     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2478     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2479     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2480     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2481     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2482     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2483     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2484     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2485     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2486     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2487     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2488     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2489     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2490     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2491     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2492     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2493     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2494     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2495     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2496     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2497     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2498     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2499     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2500     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2501     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2502     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2503     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2504     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2505     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2506     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2507     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2508     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2509     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2510     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2511     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2512     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2513     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2514     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2515     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2516     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2517     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2518     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2519     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2520     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2521     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2522     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2523     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2524     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2525     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2526     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2527     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2528     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2529     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2530     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2531     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2532     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2533     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2534     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2535     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2536     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2537     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2538     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2539     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2540     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2541     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2542     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2543     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2544     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2545     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2546
2547     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2548     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2549     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2550     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2551
2552     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2553      * Apparently to obliterate channels from any servers that think they
2554      * exist?
2555      */
2556     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2557     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2558     /* Ignore invites */
2559     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2560     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2561     /* DESYNCH is just informational, so ignore it */
2562     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2563     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2564     /* Ignore channel operator notices. */
2565     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2566     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2567     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2568     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2569     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2570     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2571     /* Ignore opers being silly. */
2572     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2573     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2574     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2575     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2576     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2577     /* Ignore dnsbl exemptions */
2578     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2579     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2580     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2581     /* ignore ALIST for now */
2582     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2583     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2584     /* Ignore remote luser */
2585     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2586     /* We have reliable clock!  Always!  Wraaa! */
2587     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2588     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2589
2590     /* ignore /trace and /motd commands targetted at us */
2591     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2592     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2593     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2594
2595     /* handle topics */
2596     dict_insert(irc_func_dict, "331", cmd_num_topic);
2597     dict_insert(irc_func_dict, "332", cmd_num_topic);
2598     dict_insert(irc_func_dict, "333", cmd_num_topic);
2599     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2600     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2601     /* ban list resetting */
2602     /* "stats g" responses */
2603     dict_insert(irc_func_dict, "247", cmd_num_gline);
2604     dict_insert(irc_func_dict, "542", cmd_num_shun);
2605     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2606     /* other numeric responses we might get */
2607     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2608     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2609     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2610     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2611     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2612     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2613     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2614     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2615     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2616
2617     num_privmsg_funcs = 16;
2618     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2619     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2620
2621     num_notice_funcs = 16;
2622     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2623     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2624
2625     userList_init(&dead_users);
2626     reg_del_channel_func(remove_unbursted_channel);
2627     reg_exit_func(parse_cleanup);
2628     // reg_notice_func(opserv, check_ctcp);
2629 }
2630
2631 int
2632 parse_line(char *line, int recursive)
2633 {
2634     char *argv[MAXNUMPARAMS], *origin;
2635     int argc, cmd, res=0;
2636     cmd_func_t *func;
2637
2638     argc = split_line(line, true, MAXNUMPARAMS, argv);
2639     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2640     if (argc > cmd) {
2641         if (cmd) {
2642             if (argv[0][0] == ':') {
2643                 origin = argv[0]+1;
2644             } else if (!argv[0][1] || !argv[0][2]) {
2645                 struct server *sNode = GetServerN(argv[0]);
2646                 origin = sNode ? sNode->name : 0;
2647             } else {
2648                 struct userNode *uNode = GetUserN(argv[0]);
2649                 origin = uNode ? uNode->nick : 0;
2650             }
2651         } else
2652             origin = 0;
2653         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2654             res = func(origin, argc-cmd, argv+cmd);
2655     }
2656     if (!res) {
2657         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2658     } else if (!recursive) {
2659         unsigned int i;
2660         for (i=0; i<dead_users.used; i++)
2661             free_user(dead_users.list[i]);
2662         dead_users.used = 0;
2663     }
2664     return res;
2665 }
2666
2667 static void
2668 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2669 {
2670     char *j, old;
2671
2672     do {
2673         j = target_list;
2674         while (*j != 0 && *j != ',')
2675             j++;
2676         old = *j;
2677         *j = 0;
2678
2679         if (IsChannelName(target_list)
2680             || (target_list[0] == '0' && target_list[1] == '\0')) {
2681             struct chanNode *chan = GetChannel(target_list);
2682
2683             if (chan) {
2684                 if (cf)
2685                     cf(chan, data);
2686             } else {
2687                 if (nc)
2688                     nc(target_list, data);
2689             }
2690         } else {
2691             struct userNode *user;
2692             struct privmsg_desc *pd = data;
2693
2694             pd->is_qualified = 0;
2695             if (*target_list == '@') {
2696                 user = NULL;
2697             } else if (strchr(target_list, '@')) {
2698                 struct server *server;
2699
2700                 pd->is_qualified = 1;
2701                 user = GetUserH(strtok(target_list, "@"));
2702                 server = GetServerH(strtok(NULL, "@"));
2703
2704                 if (user && (user->uplink != server)) {
2705                     /* Don't attempt to index into any arrays
2706                        using a user's numeric on another server. */
2707                     user = NULL;
2708                 }
2709             } else {
2710                 user = GetUserN(target_list);
2711             }
2712
2713             if (user) {
2714                 if (uf)
2715                     uf(user, data);
2716             } else {
2717                 if (nu)
2718                     nu(target_list, data);
2719             }
2720         }
2721         target_list = j+1;
2722     } while (old == ',');
2723 }
2724
2725 static int
2726 get_local_numeric(void)
2727 {
2728     static unsigned int next_numeric = 0;
2729     if (self->clients > self->num_mask)
2730         return -1;
2731     while (self->users[next_numeric])
2732         if (++next_numeric > self->num_mask)
2733             next_numeric = 0;
2734     return next_numeric;
2735 }
2736
2737 static void
2738 make_numeric(struct server *svr, int local_num, char *outbuf)
2739 {
2740     int slen, llen;
2741
2742     if (force_n2k || svr->numeric[1]) {
2743         slen = 2;
2744         llen = 3;
2745     } else {
2746         slen = 1;
2747         llen = (local_num < 64*64) ? 2 : 3;
2748     }
2749     strncpy(outbuf, svr->numeric, slen);
2750     inttobase64(outbuf+slen, local_num, llen);
2751     outbuf[slen+llen] = 0;
2752 }
2753
2754 struct server *
2755 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
2756 {
2757     struct server* sNode;
2758     int slen, mlen;
2759
2760     if ((sNode = GetServerN(numeric))) {
2761         /* This means we're trying to re-add an existant server.
2762          * To be safe, we should forget the previous incarnation.
2763          * (And all its linked servers.)
2764          *
2765          * It usually only happens in replays when the original
2766          * had a ping timeout and the replay didn't (because
2767          * replaying a ping timeout invariably gets things wrong).
2768          */
2769         DelServer(sNode, 0, NULL);
2770     }
2771
2772     switch (strlen(numeric)) {
2773     case 5: slen = 2; mlen = 3; break;
2774     case 4: slen = 1; mlen = 3; break;
2775     case 3: slen = 1; mlen = 2; break;
2776     default:
2777         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2778         return NULL;
2779     }
2780
2781     sNode = calloc(1, sizeof(*sNode));
2782     sNode->uplink = uplink;
2783     safestrncpy(sNode->name, name, sizeof(sNode->name));
2784     sNode->num_mask = base64toint(numeric+slen, mlen);
2785     sNode->hops = hops;
2786     sNode->boot = boot;
2787     sNode->link = link;
2788     strncpy(sNode->numeric, numeric, slen);
2789     safestrncpy(sNode->description, description, sizeof(sNode->description));
2790     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2791     serverList_init(&sNode->children);
2792     if (sNode->uplink) {
2793         /* uplink may be NULL if we're just building ourself */
2794         serverList_append(&sNode->uplink->children, sNode);
2795     }
2796     servers_num[base64toint(numeric, slen)] = sNode;
2797     dict_insert(servers, sNode->name, sNode);
2798     return sNode;
2799 }
2800
2801 void DelServer(struct server* serv, int announce, const char *message)
2802 {
2803     unsigned int i;
2804
2805     /* If we receive an ERROR command before the SERVER
2806      * command a NULL server can be passed */
2807     if (!serv)
2808         return;
2809
2810     /* Hrm, what's the right way to SQUIT some other server?
2811      * (This code is only to handle killing juped servers.) */
2812     if (announce && (serv->uplink == self) && (serv != self->uplink))
2813         irc_squit(serv, message, NULL);
2814
2815     /* must recursively remove servers linked to this one first */
2816     for (i=serv->children.used;i>0;)
2817         if (serv->children.list[--i] != self)
2818             DelServer(serv->children.list[i], false, NULL);
2819
2820     /* clean up server's user hash tables */
2821     for (i=0;i<=serv->num_mask;i++)
2822         if (serv->users[i])
2823             DelUser(serv->users[i], NULL, false, "server delinked");
2824
2825     /* delete server */
2826     if (serv->uplink)
2827         serverList_remove(&serv->uplink->children, serv);
2828     if (serv == self->uplink)
2829         self->uplink = NULL;
2830     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2831     dict_remove(servers, serv->name);
2832     serverList_clean(&serv->children);
2833     free(serv->users);
2834     free(serv);
2835 }
2836
2837 struct userNode *
2838 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
2839 {
2840     char numeric[COMBO_NUMERIC_LEN+1];
2841     int local_num = get_local_numeric();
2842     time_t timestamp = now;
2843     struct userNode *old_user = GetUserH(nick);
2844
2845     if (old_user) {
2846         if (IsLocal(old_user))
2847             return old_user;
2848         timestamp = old_user->timestamp - 1;
2849     }
2850     if (local_num == -1) {
2851         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2852         return 0;
2853     }
2854     if (!hostname)
2855         hostname = self->name;
2856     make_numeric(self, local_num, numeric);
2857     /* TODO: Make these modes part of the conf file */
2858     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
2859 }
2860
2861 struct userNode *
2862 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2863 {
2864     char numeric[COMBO_NUMERIC_LEN+1];
2865     int local_num = get_local_numeric();
2866     time_t timestamp = now;
2867     struct userNode *old_user = GetUserH(nick);
2868
2869     if (old_user) {
2870         if (IsLocal(old_user))
2871             return old_user;
2872         timestamp = old_user->timestamp - 1;
2873     }
2874     if (local_num == -1) {
2875         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2876         return 0;
2877     }
2878     make_numeric(self, local_num, numeric);
2879     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2880 }
2881
2882 int
2883 is_valid_nick(const char *nick) {
2884     unsigned int ii;
2885     /* IRC has some of The Most Fucked-Up ideas about character sets
2886      * in the world.. */
2887     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2888         return 0;
2889     for (ii = 0; nick[ii]; ++ii)
2890         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2891             return 0;
2892     if (strlen(nick) > nicklen)
2893         return 0;
2894     return 1;
2895 }
2896
2897 static struct userNode*
2898 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)
2899 {
2900     struct userNode *oldUser, *uNode;
2901     unsigned int n, ignore_user;
2902     char *tstr;
2903     int type;
2904
2905     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2906         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2907         return NULL;
2908     }
2909
2910     if (!uplink) {
2911         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2912         return NULL;
2913     }
2914
2915     if (uplink != GetServerN(numeric)) {
2916         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2917         return NULL;
2918     }
2919
2920     if (!is_valid_nick(nick)) {
2921         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2922         return NULL;
2923     }
2924
2925     ignore_user = 0;
2926     if ((oldUser = GetUserH(nick))) {
2927         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2928             /* The service should collide the new user off. */
2929             oldUser->timestamp = timestamp - 1;
2930             irc_user(oldUser);
2931         }
2932         if (oldUser->timestamp > timestamp) {
2933             /* "Old" user is really newer; remove them */
2934             DelUser(oldUser, 0, 1, "Overruled by older nick");
2935         } else {
2936             /* User being added is too new; do not add them to
2937              * clients, but do add them to the server's list, since it
2938              * will send a KILL and QUIT soon. */
2939             ignore_user = 1;
2940         }
2941     }
2942
2943     /* create new usernode and set all values */
2944     uNode = calloc(1, sizeof(*uNode));
2945     uNode->nick = strdup(nick);
2946     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2947     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2948     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2949     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2950     irc_p10_pton(&uNode->ip, realip);
2951
2952     tstr = conf_get_data("server/type", RECDB_QSTRING);
2953     type = atoi(tstr);
2954     if (type > 6) {
2955       if (irc_in_addr_is_ipv4(uNode->ip)) {
2956         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
2957         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2958       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
2959         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2960       }
2961     }
2962
2963     if (!uNode->crypthost && uNode->cryptip)
2964         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
2965
2966     uNode->timestamp = timestamp;
2967     modeList_init(&uNode->channels);
2968     uNode->uplink = uplink;
2969     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2970         uNode->uplink->max_clients = uNode->uplink->clients;
2971     }
2972     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2973     uNode->uplink->users[uNode->num_local] = uNode;
2974     mod_usermode(uNode, modes);
2975
2976     set_geoip_info(uNode);
2977
2978     if (ignore_user)
2979         return uNode;
2980
2981     dict_insert(clients, uNode->nick, uNode);
2982     if (dict_size(clients) > max_clients) {
2983         max_clients = dict_size(clients);
2984         max_clients_time = now;
2985     }
2986     if (IsLocal(uNode))
2987         irc_user(uNode);
2988     for (n=0; n<nuf_used; n++)
2989         if (nuf_list[n](uNode))
2990             break;
2991
2992     if ((uNode->loc == 1) && (uNode->handle_info))
2993         send_func_list(uNode);
2994
2995     return uNode;
2996 }
2997
2998 /* removes user from it's server's hash table and nick hash table */
2999 void
3000 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3001 {
3002     unsigned int n;
3003
3004     verify(user);
3005
3006     /* mark them as dead, in case anybody cares */
3007     user->dead = 1;
3008
3009     /* remove pending adduser commands */
3010     wipe_adduser_pending(NULL, user);
3011
3012     /* remove user from all channels */
3013     while (user->channels.used > 0)
3014         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
3015
3016     /* Call these in reverse order so ChanServ can update presence
3017        information before NickServ nukes the handle_info. */
3018     for (n = duf_used; n > 0; )
3019         duf_list[--n](user, killer, why);
3020
3021     user->uplink->clients--;
3022     user->uplink->users[user->num_local] = NULL;
3023     if (IsOper(user))
3024         userList_remove(&curr_opers, user);
3025     /* remove from global dictionary, but not if after a collide */
3026     if (user == dict_find(clients, user->nick, NULL))
3027         dict_remove(clients, user->nick);
3028
3029     if (IsInvisible(user))
3030         invis_clients--;
3031
3032     if (announce) {
3033         if (IsLocal(user))
3034             irc_quit(user, why);
3035         else
3036             irc_kill(killer, user, why);
3037     }
3038
3039     modeList_clean(&user->channels);
3040
3041     /* Clean up version data */
3042     if(user->version_reply) {
3043         free(user->version_reply);
3044         user->version_reply = NULL;
3045     }
3046
3047     /* clean up mark */
3048     if(user->mark) {
3049         free(user->mark);
3050         user->mark = NULL;
3051     }
3052
3053     /* clean up geoip data if any */
3054     if(user->country_code) free(user->country_code);
3055     if(user->city) free(user->city);
3056     if(user->region) free(user->region);
3057     if(user->postal_code) free(user->postal_code);
3058
3059     /* We don't free them, in case we try to privmsg them or something
3060      * (like when a stupid oper kills themself).  We just put them onto
3061      * a list of clients that get freed after processing each line.
3062      */
3063     if (dead_users.size)
3064         userList_append(&dead_users, user);
3065     else
3066         free_user(user);
3067 }
3068
3069 static void call_oper_funcs(struct userNode *user);
3070
3071 void mod_usermode(struct userNode *user, const char *mode_change) {
3072     int add = 1;
3073     const char *word = mode_change;
3074
3075     if (!user || !mode_change)
3076         return;
3077
3078     call_user_mode_funcs(user, mode_change);
3079
3080     while (*word != ' ' && *word) word++;
3081     while (*word == ' ') word++;
3082     while (1) {
3083 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3084         switch (*mode_change++) {
3085         case 0: case ' ': return;
3086         case '+': add = 1; break;
3087         case '-': add = 0; break;
3088         case 'o':
3089             if (add) {
3090                 if(!IsOper(user)) { /* Dont re-oper an oper */
3091                     userList_append(&curr_opers, user);
3092                     call_oper_funcs(user);
3093                 }
3094             } else {
3095                 userList_remove(&curr_opers, user);
3096             }
3097             do_user_mode(FLAGS_OPER);
3098             break;
3099         case 'O': do_user_mode(FLAGS_LOCOP); break;
3100         case 'i': do_user_mode(FLAGS_INVISIBLE);
3101             if (add)
3102                 invis_clients++;
3103             else
3104                 invis_clients--;
3105             break;
3106         case 'w': do_user_mode(FLAGS_WALLOP); break;
3107         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
3108         case 'd': do_user_mode(FLAGS_DEAF); break;
3109         case 'k': do_user_mode(FLAGS_SERVICE); break;
3110         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3111         case 'B': do_user_mode(FLAGS_BOT); break;
3112         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3113         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3114         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3115         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3116             if (*word) {
3117                 char cloakhost[MAXLEN];
3118                 unsigned int ii;
3119                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3120                     cloakhost[ii++] = *word++;
3121                 cloakhost[ii] = 0;
3122                 while (*word == ' ')
3123                     word++;
3124                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3125             }
3126             break;
3127         case 'c': do_user_mode(FLAGS_CLOAKIP);
3128             if (*word) {
3129                 char cloakip[MAXLEN];
3130                 unsigned int ii;
3131                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3132                     cloakip[ii++] = *word++;
3133                 cloakip[ii] = 0;
3134                 while (*word == ' ')
3135                     word++;
3136                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3137             }
3138             break;
3139         // sethost - reed/apples
3140         // case 'h': do_user_mode(FLAGS_HELPER); break;
3141         // I check if there's an 'h' in the first part, and if there,
3142         // then everything after the space becomes their new host.
3143         case 'h': do_user_mode(FLAGS_SETHOST);
3144             if (*word) {
3145                 char sethost[MAXLEN];
3146                 unsigned int ii;
3147                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3148                     sethost[ii++] = *word++;
3149                 sethost[ii] = 0;
3150                 while (*word == ' ')
3151                     word++;
3152                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3153             }
3154             break;
3155         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3156         case 'r':
3157             if (*word) {
3158                 char tag[MAXLEN];
3159                 unsigned int ii;
3160                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3161                     tag[ii++] = *word++;
3162                 tag[ii] = 0;
3163                 while (*word == ' ')
3164                     word++;
3165                 call_account_func(user, tag);
3166             }
3167             break;
3168         case 'f':
3169             if (*word) {
3170                 char host[MAXLEN];
3171                 unsigned int ii;
3172                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3173                     host[ii++] = *word++;
3174                 host[ii] = 0;
3175                 while (*word == ' ')
3176                     word++;
3177                 assign_fakehost(user, host, 0);
3178             }
3179             break;
3180         }
3181 #undef do_user_mode
3182     }
3183 }
3184
3185 struct mod_chanmode *
3186 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3187 {
3188     struct mod_chanmode *change;
3189     unsigned int ii, in_arg, ch_arg, add;
3190
3191     if (argc == 0)
3192         return NULL;
3193     if (!(change = mod_chanmode_alloc(argc - 1)))
3194         return NULL;
3195
3196     for (ii = ch_arg = 0, in_arg = add = 1;
3197          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3198          ++ii) {
3199         switch (modes[0][ii]) {
3200         case '+':
3201             add = 1;
3202             break;
3203         case '-':
3204             add = 0;
3205             break;
3206 #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)
3207         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3208         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3209         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3210         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3211         case 'm': do_chan_mode(MODE_MODERATED); break;
3212         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3213         case 'p': do_chan_mode(MODE_PRIVATE); break;
3214         case 'r': do_chan_mode(MODE_REGONLY); break;
3215         case 's': do_chan_mode(MODE_SECRET); break;
3216         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3217         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3218         case 'M': do_chan_mode(MODE_MODUNREG); break;
3219         case 'N': do_chan_mode(MODE_NONOTICE); break;
3220         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3221         case 'T': do_chan_mode(MODE_NOAMSG); break;
3222         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3223         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3224         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3225         case 'z':
3226           if (!(flags & MCP_REGISTERED)) {
3227            do_chan_mode(MODE_REGISTERED);
3228           } else {
3229            mod_chanmode_free(change);
3230            return NULL;
3231           }
3232           break;
3233 #undef do_chan_mode
3234         case 'l':
3235             if (add) {
3236                 if (in_arg >= argc)
3237                     goto error;
3238                 change->modes_set |= MODE_LIMIT;
3239                 change->new_limit = atoi(modes[in_arg++]);
3240             } else {
3241                 change->modes_set &= ~MODE_LIMIT;
3242                 change->modes_clear |= MODE_LIMIT;
3243             }
3244             break;
3245         case 'k':
3246             if (add) {
3247                 if (in_arg >= argc)
3248                     goto error;
3249                 change->modes_set |= MODE_KEY;
3250                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
3251             } else {
3252                 change->modes_clear |= MODE_KEY;
3253                 if (!(flags & MCP_KEY_FREE)) {
3254                     if (in_arg >= argc)
3255                         goto error;
3256                     in_arg++;
3257                 }
3258             }
3259             break;
3260         case 'U':
3261             if (add)
3262             {
3263               if (in_arg >= argc)
3264                   goto error;
3265               change->modes_set |= MODE_UPASS;
3266               safestrncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass));
3267             } else {
3268                 change->modes_clear |= MODE_UPASS;
3269                 if (!(flags & MCP_UPASS_FREE)) {
3270                     if (in_arg >= argc)
3271                         goto error;
3272                     in_arg++;
3273                 }
3274             }
3275             break;
3276         case 'A':
3277             if (add) {
3278                 if (in_arg >= argc)
3279                     goto error;
3280                 change->modes_set |= MODE_APASS;
3281                 safestrncpy(change->new_apass, modes[in_arg++], sizeof(change->new_apass));
3282             } else {
3283                 change->modes_clear |= MODE_APASS;
3284                 if (!(flags & MCP_APASS_FREE)) {
3285                     if (in_arg >= argc)
3286                       goto error;
3287                     in_arg++;
3288                 }
3289             }
3290             break;
3291         case 'b':
3292             if (!(flags & MCP_ALLOW_OVB))
3293                 goto error;
3294             if (in_arg >= argc)
3295                 goto error;
3296             change->args[ch_arg].mode = MODE_BAN;
3297             if (!add)
3298                 change->args[ch_arg].mode |= MODE_REMOVE;
3299             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3300             break;
3301         case 'e':
3302             if (!(flags & MCP_ALLOW_OVB))
3303                 goto error;
3304             if (in_arg >= argc)
3305                 goto error;
3306             change->args[ch_arg].mode = MODE_EXEMPT;
3307             if (!add)
3308                 change->args[ch_arg].mode |= MODE_REMOVE;
3309             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3310             break;
3311         case 'o': case 'h': case 'v':
3312         {
3313             struct userNode *victim;
3314             char *oplevel_str;
3315             int oplevel;
3316
3317             if (in_arg >= argc)
3318                 goto error;
3319             oplevel_str = strchr(modes[in_arg], ':');
3320             if (oplevel_str)
3321             {
3322                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3323                 *oplevel_str++ = '\0';
3324                 oplevel = parse_oplevel(oplevel_str);
3325                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3326                     oplevel = base_oplevel + 1;
3327             }
3328             else if (channel->modes & MODE_UPASS)
3329                 oplevel = base_oplevel + 1;
3330             else
3331                 oplevel = -1;
3332
3333             /* Check that oplevel is within bounds. */
3334             if (oplevel > MAXOPLEVEL)
3335                 oplevel = MAXOPLEVEL;
3336
3337             if (!(flags & MCP_ALLOW_OVB))
3338                 goto error;
3339             if (in_arg >= argc)
3340                 goto error;
3341
3342             if (modes[0][ii] == 'o')
3343                 change->args[ch_arg].mode = MODE_CHANOP;
3344             else if (modes[0][ii] == 'h')
3345                 change->args[ch_arg].mode = MODE_HALFOP;
3346             else if (modes[0][ii] == 'v')
3347                 change->args[ch_arg].mode = MODE_VOICE;
3348
3349             if (!add)
3350                 change->args[ch_arg].mode |= MODE_REMOVE;
3351             if (flags & MCP_FROM_SERVER)
3352                 victim = GetUserN(modes[in_arg++]);
3353             else
3354                 victim = GetUserH(modes[in_arg++]);
3355             if (!victim)
3356                 continue;
3357             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3358             {
3359                 /* Apply the oplevel change */
3360                 change->args[ch_arg].u.member->oplevel = oplevel;
3361                 ch_arg++;
3362             }
3363             break;
3364         }
3365         default:
3366             if (!(flags & MCP_FROM_SERVER))
3367                 goto error;
3368             break;
3369         }
3370     }
3371     change->argc = ch_arg; /* in case any turned out to be ignored */
3372     if (change->modes_set & MODE_SECRET) {
3373         change->modes_set &= ~(MODE_PRIVATE);
3374         change->modes_clear |= MODE_PRIVATE;
3375     } else if (change->modes_set & MODE_PRIVATE) {
3376         change->modes_set &= ~(MODE_SECRET);
3377         change->modes_clear |= MODE_SECRET;
3378     }
3379     return change;
3380   error:
3381     mod_chanmode_free(change);
3382     return NULL;
3383 }
3384
3385 struct chanmode_buffer {
3386     char modes[MAXLEN];
3387     char args[MAXLEN];
3388     struct chanNode *channel;
3389     struct userNode *actor;
3390     unsigned int modes_used;
3391     unsigned int args_used;
3392     size_t chname_len;
3393     unsigned int is_add : 1;
3394     unsigned int is_chanop : 1;
3395 };
3396
3397 static void
3398 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3399 {
3400     size_t arg_len = strlen(arg);
3401     if (buf->modes_used > (MAXMODEPARAMS) ||
3402         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3403         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3404         buf->modes[buf->modes_used + buf->args_used] = '\0';
3405         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3406         buf->modes[0] = buf->is_add ? '+' : '-';
3407         buf->modes_used = 1;
3408         buf->args_used = 0;
3409     }
3410     buf->modes[buf->modes_used++] = ch;
3411     buf->args[buf->args_used++] = ' ';
3412     memcpy(buf->args + buf->args_used, arg, arg_len);
3413     buf->args_used += arg_len;
3414 }
3415
3416 void
3417 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3418 {
3419     struct chanmode_buffer chbuf;
3420     unsigned int arg;
3421     struct modeNode *mn;
3422     char int_buff[32], mode = '\0';
3423
3424     assert(change->argc <= change->alloc_argc);
3425     memset(&chbuf, 0, sizeof(chbuf));
3426     chbuf.channel = channel;
3427     chbuf.actor = who;
3428     chbuf.chname_len = strlen(channel->name);
3429
3430     mn = GetUserMode(channel, who);
3431     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3432         chbuf.is_chanop = 1;
3433
3434     /* First remove modes */
3435     chbuf.is_add = 0;
3436     if (change->modes_clear) {
3437         if (mode != '-')
3438             chbuf.modes[chbuf.modes_used++] = mode = '-';
3439 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3440         DO_MODE_CHAR(PRIVATE, 'p');
3441         DO_MODE_CHAR(SECRET, 's');
3442         DO_MODE_CHAR(MODERATED, 'm');
3443         DO_MODE_CHAR(TOPICLIMIT, 't');
3444         DO_MODE_CHAR(INVITEONLY, 'i');
3445         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3446         DO_MODE_CHAR(LIMIT, 'l');
3447         DO_MODE_CHAR(DELAYJOINS, 'D');
3448         DO_MODE_CHAR(REGONLY, 'r');
3449         DO_MODE_CHAR(NOCOLORS, 'c');
3450         DO_MODE_CHAR(NOCTCPS, 'C');
3451         DO_MODE_CHAR(STRIPCOLOR, 'S');
3452         DO_MODE_CHAR(MODUNREG, 'M');
3453         DO_MODE_CHAR(NONOTICE, 'N');
3454         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3455         DO_MODE_CHAR(NOAMSG, 'T');
3456         DO_MODE_CHAR(OPERSONLY, 'O');
3457         DO_MODE_CHAR(REGISTERED, 'z');
3458         DO_MODE_CHAR(SSLONLY, 'Z');
3459         DO_MODE_CHAR(HIDEMODE, 'L');
3460 #undef DO_MODE_CHAR
3461         if (change->modes_clear & channel->modes & MODE_KEY)
3462             mod_chanmode_append(&chbuf, 'k', channel->key);
3463         if (change->modes_clear & channel->modes & MODE_UPASS)
3464             mod_chanmode_append(&chbuf, 'U', channel->upass);
3465         if (change->modes_clear * channel->modes & MODE_APASS)
3466             mod_chanmode_append(&chbuf, 'A', channel->apass);
3467     }
3468     for (arg = 0; arg < change->argc; ++arg) {
3469         if (!(change->args[arg].mode & MODE_REMOVE))
3470             continue;
3471         if (mode != '-')
3472             chbuf.modes[chbuf.modes_used++] = mode = '-';
3473         switch (change->args[arg].mode & ~MODE_REMOVE) {
3474         case MODE_BAN:
3475             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3476             break;
3477         case MODE_EXEMPT:
3478             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3479             break;
3480         default:
3481             if (change->args[arg].mode & MODE_CHANOP)
3482                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3483             if (change->args[arg].mode & MODE_HALFOP)
3484                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3485             if (change->args[arg].mode & MODE_VOICE)
3486                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3487             break;
3488         }
3489     }
3490
3491     /* Then set them */
3492     chbuf.is_add = 1;
3493     if (change->modes_set) {
3494         if (mode != '+')
3495             chbuf.modes[chbuf.modes_used++] = mode = '+';
3496 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3497         DO_MODE_CHAR(PRIVATE, 'p');
3498         DO_MODE_CHAR(SECRET, 's');
3499         DO_MODE_CHAR(MODERATED, 'm');
3500         DO_MODE_CHAR(TOPICLIMIT, 't');
3501         DO_MODE_CHAR(INVITEONLY, 'i');
3502         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3503         DO_MODE_CHAR(DELAYJOINS, 'D');
3504         DO_MODE_CHAR(REGONLY, 'r');
3505         DO_MODE_CHAR(NOCOLORS, 'c');
3506         DO_MODE_CHAR(NOCTCPS, 'C');
3507         DO_MODE_CHAR(STRIPCOLOR, 'S');
3508         DO_MODE_CHAR(MODUNREG, 'M');
3509         DO_MODE_CHAR(NONOTICE, 'N');
3510         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3511         DO_MODE_CHAR(NOAMSG, 'T');
3512         DO_MODE_CHAR(OPERSONLY, 'O');
3513         DO_MODE_CHAR(REGISTERED, 'z');
3514         DO_MODE_CHAR(SSLONLY, 'Z');
3515         DO_MODE_CHAR(HIDEMODE, 'L');
3516 #undef DO_MODE_CHAR
3517         if(change->modes_set & MODE_KEY)
3518             mod_chanmode_append(&chbuf, 'k', change->new_key);
3519         if (change->modes_set & MODE_UPASS)
3520             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3521         if (change->modes_set & MODE_APASS)
3522             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3523         if(change->modes_set & MODE_LIMIT) {
3524             sprintf(int_buff, "%d", change->new_limit);
3525             mod_chanmode_append(&chbuf, 'l', int_buff);
3526         }
3527     }
3528     for (arg = 0; arg < change->argc; ++arg) {
3529         if (change->args[arg].mode & MODE_REMOVE)
3530             continue;
3531         if (mode != '+')
3532             chbuf.modes[chbuf.modes_used++] = mode = '+';
3533         switch (change->args[arg].mode) {
3534         case MODE_BAN:
3535             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3536             break;
3537         case MODE_EXEMPT:
3538             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3539             break;
3540         default:
3541             if (change->args[arg].mode & MODE_CHANOP)
3542                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3543             if (change->args[arg].mode & MODE_HALFOP)
3544                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3545             if (change->args[arg].mode & MODE_VOICE)
3546                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3547             break;
3548         }
3549     }
3550
3551     /* Flush the buffer and apply changes locally */
3552     if (chbuf.modes_used > 0) {
3553         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3554         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3555         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3556     }
3557     mod_chanmode_apply(who, channel, change);
3558 }
3559
3560 char *
3561 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3562 {
3563     unsigned int used = 0;
3564     assert(change->argc <= change->alloc_argc);
3565     if (change->modes_clear) {
3566         outbuff[used++] = '-';
3567 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3568         DO_MODE_CHAR(PRIVATE, 'p');
3569         DO_MODE_CHAR(SECRET, 's');
3570         DO_MODE_CHAR(MODERATED, 'm');
3571         DO_MODE_CHAR(TOPICLIMIT, 't');
3572         DO_MODE_CHAR(INVITEONLY, 'i');
3573         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3574         DO_MODE_CHAR(LIMIT, 'l');
3575         DO_MODE_CHAR(KEY, 'k');
3576         DO_MODE_CHAR(UPASS, 'U');
3577         DO_MODE_CHAR(APASS, 'A');
3578         DO_MODE_CHAR(DELAYJOINS, 'D');
3579         DO_MODE_CHAR(REGONLY, 'r');
3580         DO_MODE_CHAR(NOCOLORS, 'c');
3581         DO_MODE_CHAR(NOCTCPS, 'C');
3582         DO_MODE_CHAR(STRIPCOLOR, 'S');
3583         DO_MODE_CHAR(MODUNREG, 'M');
3584         DO_MODE_CHAR(NONOTICE, 'N');
3585         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3586         DO_MODE_CHAR(NOAMSG, 'T');
3587         DO_MODE_CHAR(OPERSONLY, 'O');
3588         DO_MODE_CHAR(REGISTERED, 'z');
3589         DO_MODE_CHAR(SSLONLY, 'Z');
3590         DO_MODE_CHAR(HIDEMODE, 'L');
3591 #undef DO_MODE_CHAR
3592     }
3593     if (change->modes_set) {
3594         outbuff[used++] = '+';
3595 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3596         DO_MODE_CHAR(PRIVATE, 'p');
3597         DO_MODE_CHAR(SECRET, 's');
3598         DO_MODE_CHAR(MODERATED, 'm');
3599         DO_MODE_CHAR(TOPICLIMIT, 't');
3600         DO_MODE_CHAR(INVITEONLY, 'i');
3601         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3602         DO_MODE_CHAR(DELAYJOINS, 'D');
3603         DO_MODE_CHAR(REGONLY, 'r');
3604         DO_MODE_CHAR(NOCOLORS, 'c');
3605         DO_MODE_CHAR(NOCTCPS, 'C');
3606         DO_MODE_CHAR(STRIPCOLOR, 'S');
3607         DO_MODE_CHAR(MODUNREG, 'M');
3608         DO_MODE_CHAR(NONOTICE, 'N');
3609         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3610         DO_MODE_CHAR(NOAMSG, 'T');
3611         DO_MODE_CHAR(OPERSONLY, 'O');
3612         DO_MODE_CHAR(REGISTERED, 'z');
3613         DO_MODE_CHAR(SSLONLY, 'Z');
3614         DO_MODE_CHAR(HIDEMODE, 'L');
3615 #undef DO_MODE_CHAR
3616         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3617         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3618         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3619             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3620             break;
3621
3622         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3623             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3624             break;
3625         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3626             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3627             break;
3628         case MODE_KEY|MODE_APASS|MODE_UPASS:
3629             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3630             break;
3631
3632         case MODE_KEY|MODE_APASS:
3633             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3634             break;
3635         case MODE_KEY|MODE_UPASS:
3636             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3637             break;
3638         case MODE_KEY|MODE_LIMIT:
3639             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3640             break;
3641
3642         case MODE_LIMIT|MODE_UPASS:
3643             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3644             break;
3645         case MODE_LIMIT|MODE_APASS:
3646             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3647             break;
3648         case MODE_APASS|MODE_UPASS:
3649             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3650
3651         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3652             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3653             break;
3654
3655         case MODE_APASS:
3656             used += sprintf(outbuff+used, "A %s", change->new_apass);
3657             break;
3658         case MODE_UPASS:
3659             used += sprintf(outbuff+used, "U %s", change->new_upass);
3660             break;
3661         case MODE_KEY:
3662             used += sprintf(outbuff+used, "k %s", change->new_key);
3663             break;
3664         case MODE_LIMIT:
3665             used += sprintf(outbuff+used, "l %d", change->new_limit);
3666             break;
3667         }
3668     }
3669     outbuff[used] = 0;
3670     return outbuff;
3671 }
3672
3673 static int
3674 clear_chanmode(struct chanNode *channel, const char *modes)
3675 {
3676     unsigned int remove;
3677
3678     for (remove = 0; *modes; modes++) {
3679         switch (*modes) {
3680         case 'o': remove |= MODE_CHANOP; break;
3681         case 'h': remove |= MODE_HALFOP; break;
3682         case 'v': remove |= MODE_VOICE; break;
3683         case 'p': remove |= MODE_PRIVATE; break;
3684         case 's': remove |= MODE_SECRET; break;
3685         case 'm': remove |= MODE_MODERATED; break;
3686         case 't': remove |= MODE_TOPICLIMIT; break;
3687         case 'i': remove |= MODE_INVITEONLY; break;
3688         case 'n': remove |= MODE_NOPRIVMSGS; break;
3689         case 'k':
3690             remove |= MODE_KEY;
3691             channel->key[0] = '\0';
3692             break;
3693         case 'A':
3694             remove |= MODE_APASS;
3695             channel->apass[0] = '\0';
3696             break;
3697         case 'U':
3698             remove |= MODE_UPASS;
3699             channel->upass[0] = '\0';
3700             break;
3701         case 'l':
3702             remove |= MODE_LIMIT;
3703             channel->limit = 0;
3704             break;
3705         case 'b': remove |= MODE_BAN; break;
3706         case 'e': remove |= MODE_EXEMPT; break;
3707         case 'D': remove |= MODE_DELAYJOINS; break;
3708         case 'r': remove |= MODE_REGONLY; break;
3709         case 'c': remove |= MODE_NOCOLORS; break;
3710         case 'C': remove |= MODE_NOCTCPS; break;
3711         case 'S': remove |= MODE_STRIPCOLOR; break;
3712         case 'M': remove |= MODE_MODUNREG; break;
3713         case 'N': remove |= MODE_NONOTICE; break;
3714         case 'Q': remove |= MODE_NOQUITMSGS; break;
3715         case 'T': remove |= MODE_NOAMSG; break;
3716         case 'O': remove |= MODE_OPERSONLY; break;
3717         case 'z': remove |= MODE_REGISTERED; break;
3718         case 'Z': remove |= MODE_SSLONLY; break;
3719         case 'L': remove |= MODE_HIDEMODE; break;
3720         }
3721     }
3722
3723     if (!remove)
3724         return 1;
3725
3726     /* Remove simple modes. */
3727     channel->modes &= ~remove;
3728
3729     /* If removing bans, kill 'em all. */
3730     if ((remove & MODE_BAN) && channel->banlist.used) {
3731         unsigned int i;
3732         for (i=0; i<channel->banlist.used; i++)
3733             free(channel->banlist.list[i]);
3734         channel->banlist.used = 0;
3735     }
3736
3737     /* If removing exempts, kill 'em all. */
3738     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
3739         unsigned int i;
3740         for (i=0; i<channel->exemptlist.used; i++)
3741             free(channel->exemptlist.list[i]);
3742         channel->exemptlist.used = 0;
3743     }
3744
3745     /* Remove member modes. */
3746     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3747         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3748         unsigned int i;
3749
3750         for (i = 0; i < channel->members.used; i++)
3751             channel->members.list[i]->modes &= mask;
3752     }
3753
3754     return 1;
3755 }
3756
3757 void
3758 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3759 {
3760     unsigned int numeric = user->num_local;
3761     if (numeric >= num_privmsg_funcs) {
3762         int newnum = numeric + 8;
3763         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3764         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
3765         num_privmsg_funcs = newnum;
3766     }
3767     if (privmsg_funcs[numeric])
3768         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3769     privmsg_funcs[numeric] = handler;
3770 }
3771
3772 void
3773 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3774 {
3775     unsigned int x;
3776
3777     if (!user || handler)
3778       return; /* this really only works with users */
3779
3780     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3781
3782     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
3783        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
3784
3785     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
3786     num_privmsg_funcs--;
3787 }
3788
3789
3790 void
3791 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3792 {
3793     unsigned int numeric = user->num_local;
3794     if (numeric >= num_notice_funcs) {
3795         int newnum = numeric + 8;
3796         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3797         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
3798         num_notice_funcs = newnum;
3799     }
3800     if (notice_funcs[numeric])
3801         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3802     notice_funcs[numeric] = handler;
3803 }
3804
3805 void
3806 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
3807 {
3808     unsigned int x;
3809
3810     if (!user || handler)
3811           return; /* this really only works with users */
3812
3813     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3814
3815     for (x = user->num_local+1; x < num_notice_funcs; x++)
3816        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
3817
3818     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3819     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
3820     num_notice_funcs--;
3821 }
3822
3823 void
3824 reg_oper_func(oper_func_t handler)
3825 {
3826     if (of_used == of_size) {
3827         if (of_size) {
3828             of_size <<= 1;
3829             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
3830         } else {
3831             of_size = 8;
3832             of_list = malloc(of_size*sizeof(oper_func_t));
3833         }
3834     }
3835     of_list[of_used++] = handler;
3836 }
3837
3838 static void
3839 call_oper_funcs(struct userNode *user)
3840 {
3841     unsigned int n;
3842     if (IsLocal(user))
3843         return;
3844     for (n=0; n<of_used; n++)
3845         of_list[n](user);
3846 }
3847
3848 static void
3849 send_burst(void)
3850 {
3851     unsigned int i, hop, max_hop=1;
3852     dict_iterator_t it;
3853
3854     /* burst (juped) servers, closest first (except self, which is sent already) */
3855     for (i=0; i<ArrayLength(servers_num); i++)
3856         if (servers_num[i] && servers_num[i]->hops > max_hop)
3857             max_hop = servers_num[i]->hops;
3858     for (hop=1; hop<=max_hop; hop++) {
3859         for (i=0;i<ArrayLength(servers_num);i++) {
3860             if (servers_num[i]
3861                 && (servers_num[i]->hops == hop)
3862                 && (servers_num[i] != self->uplink))
3863                 irc_server(servers_num[i]);
3864         }
3865     }
3866
3867     /* burst local nicks */
3868     for (i=0; i<=self->num_mask; i++)
3869         if (self->users[i])
3870             irc_user(self->users[i]);
3871
3872     /* build dict of unbursted channel names (just copy existing channels) */
3873     unbursted_channels = dict_new();
3874     for (it = dict_first(channels); it; it = iter_next(it))
3875         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3876 }
3877
3878 /*
3879  * Oplevel parsing
3880  */
3881 static int
3882 parse_oplevel(char *str)
3883 {
3884     int oplevel = 0;
3885     while (isdigit(*str))
3886         oplevel = oplevel * 10 + *str++ - '0';
3887     return oplevel;
3888 }
3889