src/proto-p10.c

   1 /* proto-p10.c - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "nickserv.h"
  22 #include "chanserv.h"
  23 #include "hash.h"
  24 #include "helpfile.h"
  25 #include "hosthiding.h"
  26 #include "proto-common.c"
  27 #include "opserv.h"
  28
  29 /* Full commands. */
  30 #define CMD_ACCOUNT             "ACCOUNT"
  31 #define CMD_ADMIN               "ADMIN"
  32 #define CMD_ALIST               "ALIST"
  33 #define CMD_ASLL                "ASLL"
  34 #define CMD_AWAY                "AWAY"
  35 #define CMD_BURST               "BURST"
  36 #define CMD_CLEARMODE           "CLEARMODE"
  37 #define CMD_CLOSE               "CLOSE"
  38 #define CMD_CNOTICE             "CNOTICE"
  39 #define CMD_CONNECT             "CONNECT"
  40 #define CMD_CPRIVMSG            "CPRIVMSG"
  41 #define CMD_CREATE              "CREATE"
  42 #define CMD_DESTRUCT            "DESTRUCT"
  43 #define CMD_DESYNCH             "DESYNCH"
  44 #define CMD_DIE                 "DIE"
  45 #define CMD_DNS                 "DNS"
  46 #define CMD_EOB                 "END_OF_BURST"
  47 #define CMD_EOB_ACK             "EOB_ACK"
  48 #define CMD_ERROR               "ERROR"
  49 #define CMD_FAKEHOST            "FAKE"
  50 #define CMD_GET                 "GET"
  51 #define CMD_GLINE               "GLINE"
  52 #define CMD_HASH                "HASH"
  53 #define CMD_HELP                "HELP"
  54 #define CMD_INFO                "INFO"
  55 #define CMD_INVITE              "INVITE"
  56 #define CMD_ISON                "ISON"
  57 #define CMD_JOIN                "JOIN"
  58 #define CMD_JUPE                "JUPE"
  59 #define CMD_KICK                "KICK"
  60 #define CMD_KILL                "KILL"
  61 #define CMD_LINKS               "LINKS"
  62 #define CMD_LIST                "LIST"
  63 #define CMD_LUSERS              "LUSERS"
  64 #define CMD_MAP                 "MAP"
  65 #define CMD_MARK                "MARK"
  66 #define CMD_MODE                "MODE"
  67 #define CMD_MOTD                "MOTD"
  68 #define CMD_NAMES               "NAMES"
  69 #define CMD_NICK                "NICK"
  70 #define CMD_NOTICE              "NOTICE"
  71 #define CMD_OPER                "OPER"
  72 #define CMD_OPMODE              "OPMODE"
  73 #define CMD_PART                "PART"
  74 #define CMD_PASS                "PASS"
  75 #define CMD_PING                "PING"
  76 #define CMD_PONG                "PONG"
  77 #define CMD_POST                "POST"
  78 #define CMD_PRIVMSG             "PRIVMSG"
  79 #define CMD_PRIVS               "PRIVS"
  80 #define CMD_PROTO               "PROTO"
  81 #define CMD_QUIT                "QUIT"
  82 #define CMD_REHASH              "REHASH"
  83 #define CMD_RESET               "RESET"
  84 #define CMD_RESTART             "RESTART"
  85 #define CMD_RPING               "RPING"
  86 #define CMD_RPONG               "RPONG"
  87 #define CMD_SERVER              "SERVER"
  88 #define CMD_SERVLIST            "SERVLIST"
  89 #define CMD_SERVSET             "SERVSET"
  90 #define CMD_SET                 "SET"
  91 #define CMD_SETTIME             "SETTIME"
  92 #define CMD_SHUN                "SHUN"
  93 #define CMD_SILENCE             "SILENCE"
  94 #define CMD_SNO                 "SNO"
  95 #define CMD_SQUERY              "SQUERY"
  96 #define CMD_SQUIT               "SQUIT"
  97 #define CMD_STATS               "STATS"
  98 #define CMD_SVSJOIN             "SVSJOIN"
  99 #define CMD_SVSNICK             "SVSNICK"
 100 #define CMD_SVSPART             "SVSPART"
 101 #define CMD_SWHOIS              "SWHOIS"
 102 #define CMD_TIME                "TIME"
 103 #define CMD_TOPIC               "TOPIC"
 104 #define CMD_TRACE               "TRACE"
 105 #define CMD_UPING               "UPING"
 106 #define CMD_USER                "USER"
 107 #define CMD_USERHOST            "USERHOST"
 108 #define CMD_USERIP              "USERIP"
 109 #define CMD_VERSION             "VERSION"
 110 #define CMD_WALLCHOPS           "WALLCHOPS"
 111 #define CMD_WALLOPS             "WALLOPS"
 112 #define CMD_WALLHOPS            "WALLHOPS"
 113 #define CMD_WALLUSERS           "WALLUSERS"
 114 #define CMD_WALLVOICES          "WALLVOICES"
 115 #define CMD_WALLHOPS            "WALLHOPS"
 116 #define CMD_WHO                 "WHO"
 117 #define CMD_WHOIS               "WHOIS"
 118 #define CMD_WHOWAS              "WHOWAS"
 119
 120 /* Tokenized commands. */
 121 #define TOK_ACCOUNT             "AC"
 122 #define TOK_ADMIN               "AD"
 123 #define TOK_ALIST               "AL"
 124 #define TOK_ASLL                "LL"
 125 #define TOK_AWAY                "A"
 126 #define TOK_BURST               "B"
 127 #define TOK_CLEARMODE           "CM"
 128 #define TOK_CLOSE               "CLOSE"
 129 #define TOK_CNOTICE             "CN"
 130 #define TOK_CONNECT             "CO"
 131 #define TOK_CPRIVMSG            "CP"
 132 #define TOK_CREATE              "C"
 133 #define TOK_DESTRUCT            "DE"
 134 #define TOK_DESYNCH             "DS"
 135 #define TOK_DIE                 "DIE"
 136 #define TOK_DNS                 "DNS"
 137 #define TOK_EOB                 "EB"
 138 #define TOK_EOB_ACK             "EA"
 139 #define TOK_ERROR               "Y"
 140 #define TOK_EXEMPT              "EX"
 141 #define TOK_FAKEHOST            "FA"
 142 #define TOK_GET                 "GET"
 143 #define TOK_GLINE               "GL"
 144 #define TOK_HASH                "HASH"
 145 #define TOK_HELP                "HELP"
 146 #define TOK_INFO                "F"
 147 #define TOK_INVITE              "I"
 148 #define TOK_ISON                "ISON"
 149 #define TOK_JOIN                "J"
 150 #define TOK_JUPE                "JU"
 151 #define TOK_KICK                "K"
 152 #define TOK_KILL                "D"
 153 #define TOK_LINKS               "LI"
 154 #define TOK_LIST                "LIST"
 155 #define TOK_LUSERS              "LU"
 156 #define TOK_MAP                 "MAP"
 157 #define TOK_MARK                "MK"
 158 #define TOK_MODE                "M"
 159 #define TOK_MOTD                "MO"
 160 #define TOK_NAMES               "E"
 161 #define TOK_NICK                "N"
 162 #define TOK_NOTICE              "O"
 163 #define TOK_OPER                "OPER"
 164 #define TOK_OPMODE              "OM"
 165 #define TOK_PART                "L"
 166 #define TOK_PASS                "PA"
 167 #define TOK_PING                "G"
 168 #define TOK_PONG                "Z"
 169 #define TOK_POST                "POST"
 170 #define TOK_PRIVMSG             "P"
 171 #define TOK_PRIVS               "PRIVS"
 172 #define TOK_PROTO               "PROTO"
 173 #define TOK_QUIT                "Q"
 174 #define TOK_REHASH              "REHASH"
 175 #define TOK_RESET               "RESET"
 176 #define TOK_RESTART             "RESTART"
 177 #define TOK_RPING               "RI"
 178 #define TOK_RPONG               "RO"
 179 #define TOK_SERVER              "S"
 180 #define TOK_SERVLIST            "SERVSET"
 181 #define TOK_SERVSET             "SERVSET"
 182 #define TOK_SET                 "SET"
 183 #define TOK_SETTIME             "SE"
 184 #define TOK_SHUN                "SU"
 185 #define TOK_SILENCE             "U"
 186 #define TOK_SNO                 "SNO"
 187 #define TOK_SQUERY              "SQUERY"
 188 #define TOK_SQUIT               "SQ"
 189 #define TOK_STATS               "R"
 190 #define TOK_SVSJOIN             "SJ"
 191 #define TOK_SVSNICK             "SN"
 192 #define TOK_SVSPART             "SP"
 193 #define TOK_SWHOIS              "SW"
 194 #define TOK_TIME                "TI"
 195 #define TOK_TOPIC               "T"
 196 #define TOK_TRACE               "TR"
 197 #define TOK_UPING               "UP"
 198 #define TOK_USER                "USER"
 199 #define TOK_USERHOST            "USERHOST"
 200 #define TOK_USERIP              "USERIP"
 201 #define TOK_VERSION             "V"
 202 #define TOK_WALLCHOPS           "WC"
 203 #define TOK_WALLOPS             "WA"
 204 #define TOK_WALLHOPS            "WH"
 205 #define TOK_WALLUSERS           "WU"
 206 #define TOK_WALLVOICES          "WV"
 207 #define TOK_WALLHOPS            "WH"
 208 #define TOK_WHO                 "H"
 209 #define TOK_WHOIS               "W"
 210 #define TOK_WHOWAS              "X"
 211
 212 /* Protocol messages; aliased to full commands or tokens depending
 213    on compile-time configuration. ircu prefers tokens WITH THE
 214    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 215    tokenized, because clients' (ie. a linking server) commands are
 216    only checked against the full command list.
 217 */
 218 #if defined(ENABLE_TOKENS)
 219 #define TYPE(NAME)              TOK_ ## NAME
 220 #else /* !ENABLE_TOKENS */
 221 #define TYPE(NAME)              CMD_ ## NAME
 222 #endif /* ENABLE_TOKENS */
 223
 224 #define P10_ACCOUNT             TYPE(ACCOUNT)
 225 #define P10_ADMIN               TYPE(ADMIN)
 226 #define P10_ASLL                TYPE(ASLL)
 227 #define P10_AWAY                TYPE(AWAY)
 228 #define P10_BURST               TYPE(BURST)
 229 #define P10_CLEARMODE           TYPE(CLEARMODE)
 230 #define P10_CLOSE               TYPE(CLOSE)
 231 #define P10_CNOTICE             TYPE(CNOTICE)
 232 #define P10_CONNECT             TYPE(CONNECT)
 233 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 234 #define P10_CREATE              TYPE(CREATE)
 235 #define P10_DESTRUCT            TYPE(DESTRUCT)
 236 #define P10_DESYNCH             TYPE(DESYNCH)
 237 #define P10_DIE                 TYPE(DIE)
 238 #define P10_DNS                 TYPE(DNS)
 239 #define P10_EOB                 TYPE(EOB)
 240 #define P10_EOB_ACK             TYPE(EOB_ACK)
 241 #define P10_ERROR               TYPE(ERROR)
 242 #define P10_FAKEHOST            TYPE(FAKEHOST)
 243 #define P10_GET                 TYPE(GET)
 244 #define P10_GLINE               TYPE(GLINE)
 245 #define P10_HASH                TYPE(HASH)
 246 #define P10_HELP                TYPE(HELP)
 247 #define P10_INFO                TYPE(INFO)
 248 #define P10_INVITE              TYPE(INVITE)
 249 #define P10_ISON                TYPE(ISON)
 250 #define P10_JOIN                TYPE(JOIN)
 251 #define P10_JUPE                TYPE(JUPE)
 252 #define P10_KICK                TYPE(KICK)
 253 #define P10_KILL                TYPE(KILL)
 254 #define P10_LINKS               TYPE(LINKS)
 255 #define P10_LIST                TYPE(LIST)
 256 #define P10_LUSERS              TYPE(LUSERS)
 257 #define P10_MAP                 TYPE(MAP)
 258 #define P10_MARK                TYPE(MARK)
 259 #define P10_MODE                TYPE(MODE)
 260 #define P10_MOTD                TYPE(MOTD)
 261 #define P10_NAMES               TYPE(NAMES)
 262 #define P10_NICK                TYPE(NICK)
 263 #define P10_NOTICE              TYPE(NOTICE)
 264 #define P10_OPER                TYPE(OPER)
 265 #define P10_OPMODE              TYPE(OPMODE)
 266 #define P10_PART                TYPE(PART)
 267 #define P10_PASS                CMD_PASS
 268 #define P10_PING                TYPE(PING)
 269 #define P10_PONG                TYPE(PONG)
 270 #define P10_POST                TYPE(POST)
 271 #define P10_PRIVMSG             TYPE(PRIVMSG)
 272 #define P10_PRIVS               TYPE(PRIVS)
 273 #define P10_PROTO               TYPE(PROTO)
 274 #define P10_QUIT                TYPE(QUIT)
 275 #define P10_REHASH              TYPE(REHASH)
 276 #define P10_RESET               TYPE(RESET)
 277 #define P10_RESTART             TYPE(RESTART)
 278 #define P10_RPING               TYPE(RPING)
 279 #define P10_RPONG               TYPE(RPONG)
 280 #define P10_SERVER              CMD_SERVER
 281 #define P10_SERVLIST            TYPE(SERVLIST)
 282 #define P10_SERVSET             TYPE(SERVSET)
 283 #define P10_SET                 TYPE(SET)
 284 #define P10_SETTIME             TYPE(SETTIME)
 285 #define P10_SHUN                TYPE(SHUN)
 286 #define P10_SILENCE             TYPE(SILENCE)
 287 #define P10_SNO                 TYPE(SNO)
 288 #define P10_SQUERY              TYPE(SQUERY)
 289 #define P10_SQUIT               TYPE(SQUIT)
 290 #define P10_STATS               TYPE(STATS)
 291 #define P10_SVSJOIN             TYPE(SVSJOIN)
 292 #define P10_SVSNICK             TYPE(SVSNICK)
 293 #define P10_SVSPART             TYPE(SVSPART)
 294 #define P10_SWHOIS              TYPE(SWHOIS)
 295 #define P10_TIME                TYPE(TIME)
 296 #define P10_TOPIC               TYPE(TOPIC)
 297 #define P10_TRACE               TYPE(TRACE)
 298 #define P10_UPING               TYPE(UPING)
 299 #define P10_USER                TYPE(USER)
 300 #define P10_USERHOST            TYPE(USERHOST)
 301 #define P10_USERIP              TYPE(USERIP)
 302 #define P10_VERSION             TYPE(VERSION)
 303 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 304 #define P10_WALLOPS             TYPE(WALLOPS)
 305 #define P10_WALLHOPS            TYPE(WALLHOPS)
 306 #define P10_WALLUSERS           TYPE(WALLUSERS)
 307 #define P10_WALLVOICES          TYPE(WALLVOICES)
 308 #define P10_WHO                 TYPE(WHO)
 309 #define P10_WHOIS               TYPE(WHOIS)
 310 #define P10_WHOWAS              TYPE(WHOWAS)
 311 #define P10_EXEMPT              TYPE(EXEMPT)
 312
 313 /* Servers claiming to have a boot or link time before PREHISTORY
 314  * trigger errors to the log.  We hope no server has been running
 315  * constantly since September 1994.  :)
 316  */
 317 #define PREHISTORY 780000000
 318
 319 #define MODELEN                 40 + KEYLEN
 320
 321 static struct server *servers_num[64*64];
 322 static privmsg_func_t *privmsg_funcs;
 323 static unsigned int num_privmsg_funcs;
 324 static privmsg_func_t *notice_funcs;
 325 static unsigned int num_notice_funcs;
 326 static struct dict *unbursted_channels;
 327 static char *his_servername;
 328 static char *his_servercomment;
 329 static int extended_accounts;
 330
 331 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);
 332
 333 extern int off_channel;
 334 extern int DefConLevel;
 335 extern int DefConTimeOut;
 336 extern char *DefConChanModes;
 337
 338 static int parse_oplevel(char *str);
 339
 340 char privbuf[512] = "";
 341
 342 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 343  * server and Y's indentifying the client on that server. */
 344 struct server*
 345 GetServerN(const char *numeric)
 346 {
 347     switch (strlen(numeric)) {
 348     default:
 349         return servers_num[base64toint(numeric, 2)];
 350     case 4:
 351     case 3:
 352     case 1:
 353         return servers_num[base64toint(numeric, 1)];
 354     case 0:
 355         return NULL;
 356     }
 357 }
 358
 359 struct userNode*
 360 GetUserN(const char *numeric) /* using numeric */
 361 {
 362     struct userNode *un;
 363     struct server *s;
 364     int n, slen, ulen;
 365
 366     switch (strlen(numeric)) {
 367     default:
 368         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 369         return NULL;
 370     case 5: slen = 2; ulen = 3; break;
 371     case 4: slen = 1; ulen = 3; break;
 372     case 3: slen = 1; ulen = 2; break;
 373     case 2: case 1: case 0:
 374         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 375         return NULL;
 376     }
 377     if (!(s = servers_num[base64toint(numeric, slen)])) {
 378         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 379         return NULL;
 380     }
 381     n = base64toint(numeric+slen, ulen) & s->num_mask;
 382     if (!(un = s->users[n])) {
 383         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 384     }
 385     return un;
 386 }
 387
 388 extern struct userNode *opserv;
 389 static void
 390 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 391 {
 392     char *cmd;
 393     /* if its a version reply, do an alert check (only alerts with version=something) */
 394     if(bot == opserv) {
 395         if(text[0] == '\001') {
 396             text++;
 397             cmd = mysep(&text, " ");
 398             if(!irccasecmp(cmd, "VERSION")) {
 399                 char *version = mysep(&text, "\n");
 400                 if(!version)
 401                     version = "";
 402                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 403                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 404                 user->version_reply = strdup(version);
 405                 /* TODO: put this in the db */
 406                 if(match_ircglob(version, "WebTV;*"))
 407                     user->no_notice = true; /* webbies cant see notices */
 408             }
 409         }
 410     }
 411 }
 412
 413
 414 static void
 415 privmsg_user_helper(struct userNode *un, void *data)
 416 {
 417     struct privmsg_desc *pd = data;
 418     unsigned int num = un->num_local;
 419     if (!pd->is_notice) {
 420         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 421             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 422         }
 423     } else {
 424         if ((num < num_notice_funcs) && notice_funcs[num]) {
 425             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 426             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 427         }
 428     }
 429 }
 430
 431 /* equiv to user doing /connect server port target */
 432 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 433 {
 434     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 435 }
 436
 437 void
 438 irc_squit_route(struct server *srv, const char *message, ...)
 439 {
 440     va_list arg_list;
 441     char buffer[MAXLEN];
 442     va_start(arg_list, message);
 443     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 444     buffer[MAXLEN-1] = 0;
 445
 446     /* When would we squit ourselves exactly?? -Rubin */
 447     if(srv == self && cManager.uplink->state == CONNECTED ) {
 448         unsigned int i;
 449
 450         /* Quit all clients linked to me. */
 451         for(i = 0; i <= self->num_mask; i++) {
 452             if(!self->users[i])
 453                 continue;
 454             irc_quit(self->users[i], buffer);
 455         }
 456     }
 457
 458     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 459
 460     if(srv == self) {
 461         /* Force a reconnect to the currently selected server. */
 462         cManager.uplink->tries = 0;
 463         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 464         close_socket();
 465     }
 466 }
 467
 468 void
 469 irc_server(struct server *srv)
 470 {
 471     char extranum[COMBO_NUMERIC_LEN+1];
 472
 473     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 474     if (srv == self) {
 475         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s6 :%s",
 476                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 477     } else {
 478         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s6 :%s",
 479                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 480     }
 481 }
 482
 483 static void
 484 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 485 {
 486     if (strlen(input) == 6) {
 487         unsigned int value;
 488         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 489         value = base64toint(input, 6);
 490         if (value)
 491             ip->in6[5] = htons(65535);
 492         ip->in6[6] = htons(value >> 16);
 493         ip->in6[7] = htons(value & 65535);
 494     } else {
 495         unsigned int pos = 0;
 496         do {
 497             if (*input == '_') {
 498                 unsigned int left;
 499                 for (left = (25 - strlen(input)) / 3; left; left--)
 500                     ip->in6[pos++] = 0;
 501                 input++;
 502             } else {
 503                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 504                 input += 3;
 505             }
 506         } while (pos < 8);
 507     }
 508 }
 509
 510 static void
 511 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 512 {
 513     if (!irc_in_addr_is_valid(*ip)) {
 514         strcpy(output, "AAAAAA");
 515     } else if (irc_in_addr_is_ipv4(*ip)) {
 516         unsigned int in4;
 517         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 518         inttobase64(output, in4, 6);
 519         output[6] = '\0';
 520     } else if (irc_in_addr_is_ipv6(*ip)) {
 521         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 522         /* Can start by printing out the leading non-zero parts. */
 523         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 524             inttobase64(output, ntohs(ip->in6[ii]), 3);
 525             output += 3;
 526         }
 527         /* Find the longest run of zeros. */
 528         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 529             if (!ip->in6[ii])
 530                 curr_zeros++;
 531             else if (curr_zeros > max_zeros) {
 532                 max_start = ii - curr_zeros;
 533                 max_zeros = curr_zeros;
 534                 curr_zeros = 0;
 535             }
 536         }
 537         if (curr_zeros > max_zeros) {
 538             max_start = ii - curr_zeros;
 539             max_zeros = curr_zeros;
 540             curr_zeros = 0;
 541         }
 542         /* Print the rest of the address */
 543         for (ii = zero; ii < 8; ) {
 544             if ((ii == max_start) && max_zeros) {
 545                 *output++ = '_';
 546                 ii += max_zeros;
 547             } else {
 548                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 549                 output += 3;
 550             }
 551         }
 552         *output = '\0';
 553     } else {
 554         strcpy(output, "???");
 555     }
 556 }
 557
 558 void
 559 irc_user(struct userNode *user)
 560 {
 561     char b64ip[25];
 562     if (!user)
 563         return;
 564     irc_p10_ntop(b64ip, &user->ip);
 565     if (user->modes) {
 566         int modelen;
 567         char modes[32];
 568
 569         modelen = 0;
 570         if (IsOper(user))
 571             modes[modelen++] = 'o';
 572         if (IsInvisible(user))
 573             modes[modelen++] = 'i';
 574         if (IsWallOp(user))
 575             modes[modelen++] = 'w';
 576         if (IsService(user))
 577             modes[modelen++] = 'k';
 578         if (IsServNotice(user))
 579             modes[modelen++] = 's';
 580         if (IsDeaf(user))
 581             modes[modelen++] = 'd';
 582         if (IsGlobal(user))
 583             modes[modelen++] = 'g';
 584         // sethost - reed/apples
 585         // if (IsHelperIrcu(user))
 586         if (IsSetHost(user))
 587             modes[modelen++] = 'h';
 588         if (IsFakeHost(user))
 589             modes[modelen++] = 'f';
 590         if (IsHiddenHost(user))
 591             modes[modelen++] = 'x';
 592         modes[modelen] = 0;
 593
 594         /* we don't need to put the + in modes because it's in the format string. */
 595         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 596                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 597     } else {
 598         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 599                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 600     }
 601 }
 602
 603 void
 604 irc_rename(struct userNode *user, const char *new_handle)
 605 {
 606     if(extended_accounts)
 607         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 608 }
 609
 610 void
 611 irc_delete(struct userNode *user)
 612 {
 613     if(extended_accounts)
 614         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 615 }
 616
 617 void
 618 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 619 {
 620     if(extended_accounts)
 621         putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 622     else
 623         putsock("%s " P10_ACCOUNT " %s %s %lu", self->numeric, user->numeric, stamp, timestamp);
 624 }
 625
 626 void
 627 irc_fakehost(struct userNode *user, const char *host)
 628 {
 629     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 630 }
 631
 632 void
 633 irc_regnick(UNUSED_ARG(struct userNode *user))
 634 {
 635     /* no operation here */
 636 }
 637
 638 void
 639 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 640 {
 641     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 642 }
 643
 644 void
 645 irc_fetchtopic(struct userNode *from, const char *to)
 646 {
 647     if (!from || !to)
 648         return;
 649     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 650 }
 651
 652 void
 653 irc_squit(struct server *srv, const char *message, const char *service_message)
 654 {
 655     if (!service_message)
 656         service_message = message;
 657
 658     /* Are we leaving the network? */
 659     if (srv == self && cManager.uplink->state == CONNECTED) {
 660         unsigned int i;
 661
 662         /* Quit all clients linked to me. */
 663         for (i = 0; i <= self->num_mask; i++) {
 664             if (!self->users[i])
 665                 continue;
 666             irc_quit(self->users[i], service_message);
 667         }
 668     }
 669
 670     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 671
 672     if (srv == self) {
 673         /* Force a reconnect to the currently selected server. */
 674         cManager.uplink->tries = 0;
 675         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 676         close_socket();
 677     }
 678 }
 679
 680 void
 681 irc_wallchops(struct userNode *from, const char *to, const char *message)
 682 {
 683     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 684 }
 685
 686 void
 687 irc_wallops(const char *format, ...)
 688 {
 689     va_list arg_list;
 690     char buffer[MAXLEN];
 691     va_start(arg_list, format);
 692     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 693     buffer[MAXLEN-1] = 0;
 694     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 695 }
 696
 697
 698 void
 699 irc_notice(struct userNode *from, const char *to, const char *message)
 700 {
 701     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 702 }
 703
 704 void
 705 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 706 {
 707     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 708 }
 709
 710 void
 711 irc_privmsg(struct userNode *from, const char *to, const char *message)
 712 {
 713     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 714 }
 715
 716 void
 717 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 718 {
 719     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 720 }
 721
 722 void
 723 irc_version_user(struct userNode *from, struct userNode *to)
 724 {
 725     irc_privmsg_user(from, to, "\001VERSION\001");
 726 }
 727
 728 void
 729 irc_eob(void)
 730 {
 731     putsock("%s " P10_EOB, self->numeric);
 732 }
 733
 734 void
 735 irc_eob_ack(void)
 736 {
 737     putsock("%s " P10_EOB_ACK, self->numeric);
 738
 739     char *nick;
 740     const char *str;
 741     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 742     nick = strdup(str);
 743
 744     if (nick && (DefConLevel < 5)) {
 745         DefConProcess(GetUserH(nick));
 746
 747         if (DefConTimeOut > 0)
 748             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 749     }
 750 }
 751
 752 void
 753 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 754 {
 755     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 756 }
 757
 758 void
 759 irc_ping(const char *payload)
 760 {
 761     putsock("%s " P10_PING " :%s", self->numeric, payload);
 762 }
 763
 764 void
 765 irc_pong(const char *who, const char *data)
 766 {
 767     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 768 }
 769
 770 void
 771 irc_pong_asll(const char *who, const char *orig_ts)
 772 {
 773     char *delim;
 774     struct timeval orig;
 775     struct timeval now;
 776     int diff;
 777
 778     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 779     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 780     gettimeofday(&now, NULL);
 781     diff = (now.tv_sec - orig.tv_sec) * 1000 + (now.tv_usec - orig.tv_usec) / 1000;
 782     putsock("%s " P10_PONG " %s %s %d " FMT_TIME_T ".%06u", self->numeric, who, orig_ts, diff, now.tv_sec, (unsigned)now.tv_usec);
 783 }
 784
 785 void
 786 irc_pass(const char *passwd)
 787 {
 788     putsock(P10_PASS " :%s", passwd);
 789 }
 790
 791 void
 792 irc_introduce(const char *passwd)
 793 {
 794     void timed_send_ping(void *data);
 795
 796     self->self_burst = self->burst = 1;
 797     irc_pass(passwd);
 798     irc_server(self);
 799     burst_length = 0;
 800     timeq_add(now + ping_freq, timed_send_ping, 0);
 801 }
 802
 803 void
 804 irc_gline(struct server *srv, struct gline *gline, int silent)
 805 {
 806     putsock("%s " P10_GLINE " %s +%s %ld :%s<%s> %s",
 807             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 808 }
 809
 810 void
 811 irc_shun(struct server *srv, struct shun *shun)
 812 {
 813     putsock("%s " P10_SHUN " %s +%s %ld :<%s> %s",
 814             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 815 }
 816
 817 void
 818 irc_settime(const char *srv_name_mask, time_t new_time)
 819 {
 820     ioset_set_time(new_time);
 821     if (!strcmp(srv_name_mask, "*"))
 822         srv_name_mask = "";
 823     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 824 }
 825
 826 void
 827 irc_ungline(const char *mask)
 828 {
 829     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 830 }
 831
 832 void
 833 irc_unshun(const char *mask)
 834 {
 835     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 836 }
 837
 838 static void
 839 irc_burst(struct chanNode *chan)
 840 {
 841     char burst_line[512];
 842     int pos, base_len, len;
 843     struct modeNode *mn;
 844     struct banNode *bn;
 845     struct exemptNode *en;
 846     long last_mode=-1;
 847     unsigned int n;
 848
 849     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 850                        self->numeric, chan->name, chan->timestamp);
 851     len = irc_make_chanmode(chan, burst_line+base_len);
 852     pos = base_len + len;
 853     if (len)
 854         burst_line[pos++] = ' ';
 855
 856     if(chan->members.used < 1)
 857         return; /* dont burst empty channels (created by discrims) */
 858     /* dump the users */
 859     for (n=0; n<chan->members.used; n++) {
 860         mn = chan->members.list[n];
 861         if (pos > 500) {
 862             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 863             putsock("%s", burst_line);
 864             pos = base_len;
 865             last_mode = -1;
 866         }
 867
 868         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 869         pos += strlen(mn->user->numeric);
 870         if (mn->modes && (mn->modes != last_mode)) {
 871             last_mode = mn->modes;
 872             burst_line[pos++] = ':';
 873             if (last_mode & MODE_CHANOP)
 874                 burst_line[pos++] = 'o';
 875             if (last_mode & MODE_HALFOP)
 876                 burst_line[pos++] = 'h';
 877             if (last_mode & MODE_VOICE)
 878                 burst_line[pos++] = 'v';
 879         }
 880         if ((n+1)<chan->members.used)
 881             burst_line[pos++] = ',';
 882     }
 883     if (chan->banlist.used) {
 884         /* dump the bans */
 885         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 886             burst_line[pos-1] = 0;
 887             putsock("%s", burst_line);
 888             pos = base_len;
 889         } else {
 890             burst_line[pos++] = ' ';
 891         }
 892
 893         burst_line[pos++] = ':';
 894         burst_line[pos++] = '%';
 895         base_len = pos;
 896         for (n=0; n<chan->banlist.used; n++) {
 897             bn = chan->banlist.list[n];
 898             len = strlen(bn->ban);
 899             if (pos+len+1 > 510) {
 900                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 901                 putsock("%s", burst_line);
 902                 pos = base_len;
 903             }
 904             memcpy(burst_line+pos, bn->ban, len);
 905             pos += len;
 906             burst_line[pos++] = ' ';
 907         }
 908     }
 909     if (chan->exemptlist.used) {
 910         /* dump the exempt */
 911         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 912             burst_line[pos-1] = 0;
 913             putsock("%s", burst_line);
 914             pos = base_len;
 915         } else {
 916             burst_line[pos++] = ' ';
 917         }
 918
 919         burst_line[pos++] = ' ';
 920         burst_line[pos++] = '~';
 921         burst_line[pos++] = ' ';
 922         base_len = pos;
 923         for (n=0; n<chan->exemptlist.used; n++) {
 924             en = chan->exemptlist.list[n];
 925             len = strlen(en->exempt);
 926             if (pos+len+1 > 510) {
 927                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 928                 putsock("%s", burst_line);
 929                 pos = base_len;
 930             }
 931             memcpy(burst_line+pos, en->exempt, len);
 932             pos += len;
 933             burst_line[pos++] = ' ';
 934         }
 935     }
 936     /* print the last line */
 937     burst_line[pos] = 0;
 938     putsock("%s", burst_line);
 939 }
 940
 941 void
 942 irc_quit(struct userNode *user, const char *message)
 943 {
 944     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 945 }
 946
 947 void
 948 irc_error(const char *to, const char *message)
 949 {
 950     if (to) {
 951         putsock("%s " P10_ERROR " :%s", to, message);
 952     } else {
 953         putsock(":%s " P10_ERROR " :%s", self->name, message);
 954     }
 955 }
 956
 957 void
 958 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 959 {
 960     if (from) {
 961         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 962                 from->numeric, target->numeric, self->name, from->nick, message);
 963     } else {
 964         putsock("%s " P10_KILL " %s :%s (%s)",
 965                 self->numeric, target->numeric, self->name, message);
 966     }
 967 }
 968
 969 void
 970 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 971 {
 972     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 973     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 974             (from ? from->numeric : self->numeric),
 975             target->name, modes, target->timestamp);
 976 }
 977
 978 /* Added to allow services to mode users
 979    2005 - 8 - 10 by Life4Christ
 980 */
 981 void
 982 irc_umode(struct userNode *target, const char *modes)
 983 {
 984     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
 985 }
 986
 987
 988 void
 989 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 990 {
 991     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 992 }
 993
 994 void
 995 irc_silence(struct userNode *who, const char *mask, int add)
 996 {
 997     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
 998 }
 999
1000 void
1001 irc_join(struct userNode *who, struct chanNode *what)
1002 {
1003     if (what->members.used == 1) {
1004         putsock("%s " P10_CREATE " %s %lu",
1005                 who->numeric, what->name, what->timestamp);
1006     } else {
1007         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
1008     }
1009 }
1010
1011 void
1012 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1013 {
1014     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1015 }
1016
1017 void
1018 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1019 {
1020     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1021 }
1022
1023 void
1024 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1025 {
1026     const char *numeric;
1027     struct modeNode *mn = GetUserMode(channel, who);
1028     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1029     putsock("%s " P10_KICK " %s %s :%s",
1030             numeric, channel->name, target->numeric, msg);
1031 }
1032
1033 void
1034 irc_stats(struct userNode *from, struct server *target, char type)
1035 {
1036     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1037 }
1038
1039 void
1040 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1041 {
1042     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1043 }
1044
1045 void
1046 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1047 {
1048     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1049                                          message ? message : "");
1050
1051 }
1052
1053 void
1054 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1055 {
1056     if (reason) {
1057         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1058     } else {
1059         putsock("%s " P10_PART " %s", who->numeric, what->name);
1060     }
1061 }
1062
1063 void
1064 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1065 {
1066
1067    int type = 4;
1068    int host_in_topic = 0;
1069    const char *hstr, *tstr;
1070    char *host, *hostmask;
1071    char shost[MAXLEN];
1072    char sident[MAXLEN];
1073
1074    tstr = conf_get_data("server/type", RECDB_QSTRING);
1075    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1076    if(tstr)
1077      type = atoi(tstr);
1078    else
1079      type = 4;/* default to 040 style topics */
1080
1081    if (hstr) {
1082       if (IsFakeHost(who))
1083           safestrncpy(shost, who->fakehost, sizeof(shost));
1084       else if (IsSetHost(who)) {
1085           hostmask = strdup(who->sethost);
1086           if ((host = (strrchr(hostmask, '@'))))
1087               *host++ = '\0';
1088           else
1089               host = hostmask;
1090
1091           safestrncpy(sident, hostmask, sizeof(shost));
1092           safestrncpy(shost, host, sizeof(shost));
1093       } else
1094           safestrncpy(shost, who->hostname, sizeof(shost));
1095
1096       host_in_topic = atoi(hstr);
1097    }
1098
1099    if (type >= 5) {
1100      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1101              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1102              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1103    } else {
1104      who = service;
1105      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1106    }
1107 }
1108
1109 void
1110 irc_raw(const char *what)
1111 {
1112     putsock("%s", what);
1113 }
1114
1115 void
1116 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1117 {
1118     va_list arg_list;
1119     char buffer[MAXLEN];
1120     va_start(arg_list, format);
1121     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1122     buffer[MAXLEN-1] = 0;
1123     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1124 }
1125
1126 void
1127 irc_mark(struct userNode *user, char *mark)
1128 {
1129     char *host = user->hostname;
1130
1131     /* 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 */
1132     if(user->mark)
1133         return;
1134
1135     /* if the mark will put us over the  host length, clip some off the left hand side
1136      * to make room...
1137      */
1138     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1139         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1140     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1141     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1142
1143     /* Save it in the user */
1144     user->mark = strdup(mark);
1145
1146     /* If they are not otherwise marked, mark their host with fakehost */
1147     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1148     {
1149         struct modeNode *mn = NULL;
1150         char fakehost[HOSTLEN];
1151         unsigned int count = 0;
1152         unsigned int n = 0;
1153
1154         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1155         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1156
1157         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1158         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1159
1160         for (n=count=0; n<user->channels.used; n++) {
1161             mn = user->channels.list[n];
1162             if (strlen(mn->channel->name) >= 1) /* Sanity */
1163                 check_bans(user, mn->channel->name);
1164         }
1165     }
1166 }
1167
1168 static void send_burst(void);
1169
1170 static void
1171 change_nicklen(int new_nicklen)
1172 {
1173     unsigned int nn;
1174     char new_nick[NICKLEN+1];
1175     struct userNode *user;
1176
1177     nicklen = new_nicklen;
1178     /* fix up any users we have here */
1179     for (nn=0; nn<=self->num_mask; nn++) {
1180         if (!(user = self->users[nn]))
1181             continue;
1182         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1183         new_nick[nicklen] = 0;
1184         NickChange(user, new_nick, 1);
1185     }
1186 }
1187
1188 static CMD_FUNC(cmd_whois)
1189 {
1190     struct userNode *from;
1191     struct userNode *who;
1192
1193     if (argc < 3)
1194         return 0;
1195     if (!(from = GetUserH(origin))) {
1196         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1197         return 0;
1198     }
1199     if(!(who = GetUserH(argv[2]))) {
1200         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1201         return 1;
1202     }
1203     if (IsHiddenHost(who) && !IsOper(from)) {
1204         /* Just stay quiet. */
1205         return 1;
1206     }
1207     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1208     if (his_servername && his_servercomment)
1209         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1210     else
1211         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1212     if (IsOper(who))
1213         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
1214     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1215     return 1;
1216 }
1217
1218 static CMD_FUNC(cmd_server)
1219 {
1220     struct server *srv;
1221     const char *str;
1222
1223     if (argc < 8)
1224         return 0;
1225     if (self->uplink) {
1226         /* another server introduced us */
1227         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1228         if (!srv)
1229             return 0;
1230         srv->self_burst = argv[5][0] == 'J';
1231         srv->burst = 1;
1232     } else {
1233         /* this must be our uplink */
1234         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1235         if (!srv)
1236             return 0;
1237         srv->self_burst = argv[5][0] == 'J';
1238         srv->burst = 1;
1239         if ((argv[7][0] == '+') && !force_n2k) {
1240             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1241         }
1242         send_burst();
1243     }
1244
1245     /* Fix up our timestamps if necessary. */
1246     if (srv->boot <= PREHISTORY) {
1247         /* Server from the mists of time.. */
1248         if (srv->hops == 1) {
1249             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1250         }
1251     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1252                && enabled_string(str)) {
1253         /* If we have a reliable clock, we just keep our current time. */
1254     } else {
1255         if (srv->boot <= self->boot) {
1256             /* The other server is older than us.  Accept their timestamp.
1257              * Alternately, we are same age, but we accept their time
1258              * since we are linking to them. */
1259             self->boot = srv->boot;
1260             ioset_set_time(srv->link);
1261         }
1262     }
1263     if (srv == self->uplink) {
1264         extern time_t burst_begin;
1265         burst_begin = now;
1266     }
1267     return 1;
1268 }
1269
1270
1271 static CMD_FUNC(cmd_eob)
1272 {
1273     struct server *sender;
1274     dict_iterator_t it;
1275     unsigned int ii;
1276
1277     if (!(sender = GetServerH(origin)))
1278         return 0;
1279     if (sender == self->uplink) {
1280         cManager.uplink->state = CONNECTED;
1281         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1282             irc_burst(iter_data(it));
1283         dict_delete(unbursted_channels);
1284         unbursted_channels = NULL;
1285         irc_eob();
1286         irc_eob_ack();
1287
1288         /* now that we know who our uplink is,
1289          * we can center the routing map and activate auto-routing.
1290          */
1291         //activate_routing(NULL, NULL, NULL);
1292         routing_init();
1293     }
1294     sender->self_burst = 0;
1295     recalc_bursts(sender);
1296     for (ii=0; ii<slf_used; ii++)
1297         slf_list[ii](sender);
1298     /* let auto-routing figure out if we were
1299      * wating on this server to link a child to it */
1300     /* DONT call this if uplink is _US_ */
1301     if(sender->uplink != self)
1302         routing_handle_connect(sender->name, sender->uplink->name);
1303     return 1;
1304 }
1305
1306 static CMD_FUNC(cmd_eob_ack)
1307 {
1308     extern time_t burst_begin;
1309
1310     if (GetServerH(origin) == self->uplink) {
1311         burst_length = now - burst_begin;
1312         self->self_burst = self->burst = 0;
1313     }
1314     cManager.uplink->state = CONNECTED;
1315     return 1;
1316 }
1317
1318 static CMD_FUNC(cmd_rping)
1319 {
1320     struct server *dest;
1321
1322     if (!(dest = GetServerN(argv[1])))
1323         return 0;
1324
1325     if (dest == self)
1326         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1327
1328     return 1;
1329 }
1330
1331 static CMD_FUNC(cmd_ping)
1332 {
1333     struct server *srv;
1334     struct userNode *un;
1335
1336     if (argc > 3)
1337         irc_pong_asll(argv[2], argv[3]);
1338     else if ((srv = GetServerH(origin)))
1339         irc_pong(self->name, srv->numeric);
1340     else if ((un = GetUserH(origin)))
1341         irc_pong(self->name, un->numeric);
1342     else
1343         irc_pong(self->name, origin);
1344
1345     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1346     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1347     timeq_add(now + ping_freq, timed_send_ping, 0);
1348     received_ping();
1349     return 1;
1350 }
1351
1352 static CMD_FUNC(cmd_error_nick)
1353 {
1354     /* Go back to original IRC length .. and try to reconnect :/ */
1355     change_nicklen(9);
1356     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1357     return 1;
1358 }
1359
1360 struct create_desc {
1361     struct userNode *user;
1362     time_t when;
1363 };
1364
1365 static void
1366 join_helper(struct chanNode *chan, void *data)
1367 {
1368     struct create_desc *cd = data;
1369     AddChannelUser(cd->user, chan);
1370 }
1371
1372 static void
1373 create_helper(char *name, void *data)
1374 {
1375     struct create_desc *cd = data;
1376
1377     if (!strcmp(name, "0")) {
1378         while (cd->user->channels.used > 0)
1379             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1380         return;
1381     }
1382
1383     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1384 }
1385
1386 static CMD_FUNC(cmd_create)
1387 {
1388     struct create_desc cd;
1389     struct userNode *user;
1390
1391     if ((argc < 3) || !(user = GetUserH(origin)))
1392         return 0;
1393     cd.user = user;
1394     cd.when = atoi(argv[2]);
1395     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1396     return 1;
1397 }
1398
1399 static CMD_FUNC(cmd_join)
1400 {
1401     struct create_desc cd;
1402
1403     if (!(cd.user = GetUserH(origin)))
1404         return 0;
1405     if (argc < 2)
1406         return 0;
1407     else if (argc < 3)
1408         cd.when = now;
1409     else
1410         cd.when = atoi(argv[2]);
1411     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1412     return 1;
1413 }
1414
1415 static CMD_FUNC(cmd_svsjoin)
1416 {
1417     struct create_desc cd;
1418
1419     if (!(cd.user = GetUserH(argv[1])))
1420         return 0;
1421     if (argc < 3)
1422         return 0;
1423     else if (argc < 4)
1424         cd.when = now;
1425     else
1426         cd.when = atoi(argv[3]);
1427     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1428     return 1;
1429 }
1430
1431 static CMD_FUNC(cmd_pong)
1432 {
1433     if (argc < 3)
1434         return 0;
1435     if (!strcmp(argv[2], self->name)) {
1436         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1437         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1438         timeq_add(now + ping_freq, timed_send_ping, 0);
1439         received_ping();
1440     }
1441     return 1;
1442 }
1443
1444 static CMD_FUNC(cmd_nick)
1445 {
1446     struct userNode *user;
1447     if ((user = GetUserH(origin))) {
1448         /* nick change (since the source is a user numeric) */
1449         if (argc < 2)
1450             return 0;
1451         NickChange(user, argv[1], 1);
1452     } else {
1453         struct server *serv;
1454         struct userNode *nuser;
1455         char modes[MAXLEN];
1456         /* new nick */
1457         if (argc < 9)
1458             return 0;
1459         serv = GetServerH(origin);
1460         if (argc > 9)
1461             unsplit_string(argv+6, argc-9, modes);
1462         else
1463             strcpy(modes, "+");
1464         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1465     }
1466     return 1;
1467 }
1468
1469 static CMD_FUNC(cmd_account)
1470 {
1471     struct userNode *user;
1472     struct server *server;
1473     struct handle_info *hi;
1474
1475     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1476         return 0; /* Origin must be server. */
1477
1478     /* This next line appears to tremple origin.. why? */
1479     user = GetUserN(argv[1]);
1480     if (!user)
1481         return 1; /* A QUIT probably passed the ACCOUNT. */
1482
1483     if(!extended_accounts) /* any need for this function without? */
1484         return 1;
1485
1486     if(!strcmp(argv[2],"C"))
1487     {
1488         if((hi = loc_auth(argv[4], argv[5], NULL)))
1489         {
1490             /* Return a AC A */
1491             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1492
1493         }
1494         else
1495         {
1496             /* Return a AC D */
1497             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1498         }
1499         return 1;
1500     }
1501     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1502     {
1503         if((hi = loc_auth(argv[5], argv[6], argv[4] )))
1504         {
1505             /* Return a AC A */
1506             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1507
1508         }
1509         else
1510         {
1511             /* Return a AC D */
1512             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1513         }
1514         return 1;
1515     }
1516     else if(!strcmp(argv[2],"R"))
1517        call_account_func(user, argv[3]);
1518     else
1519         call_account_func(user, argv[2]); /* For backward compatability */
1520     return 1;
1521 }
1522
1523 static CMD_FUNC(cmd_fakehost)
1524 {
1525     struct userNode *user;
1526
1527     if ((argc < 3) || !origin || !GetServerH(origin))
1528         return 0;
1529     if (!(user = GetUserN(argv[1])))
1530         return 1;
1531     assign_fakehost(user, argv[2], 0);
1532     return 1;
1533 }
1534
1535 static struct {
1536   char        *name;
1537   unsigned int priv;
1538 } privtab[] = {
1539 #define P(priv)         { #priv, PRIV_ ## priv }
1540   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1541   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1542   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1543   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1544   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1545   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1546   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1547   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1548   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),
1549 #undef P
1550   { 0, 0 }
1551 };
1552
1553 char *client_report_privs(struct userNode *client)
1554 {
1555   int i;
1556
1557   privbuf[0] = '\0';
1558   for (i = 0; privtab[i].name; i++) {
1559     if (HasPriv(client, privtab[i].priv)) {
1560       strcat(privbuf, privtab[i].name);
1561       strcat(privbuf, " ");
1562     }
1563   }
1564
1565   privbuf[strlen(privbuf)] = 0;
1566
1567   return privbuf;
1568 }
1569
1570 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1571  int i = 0;
1572  assert(0 != priv);
1573  assert(0 != who);
1574
1575   for (i = 0; privtab[i].name; i++) {
1576     if (0 == strcmp(privtab[i].name, priv)) {
1577       if (what == PRIV_ADD)
1578         GrantPriv(who, privtab[i].priv);
1579       else if (what == PRIV_DEL) {
1580         RevokePriv(who, privtab[i].priv);
1581       }
1582     }
1583   }
1584   return 0;
1585 }
1586
1587 int check_priv(char *priv)
1588 {
1589   int i;
1590
1591   for (i = 0; privtab[i].name; i++) {
1592     if (0 == strcmp(privtab[i].name, priv)) {
1593       return 1;
1594     }
1595   }
1596   return 0;
1597 }
1598
1599 void
1600 irc_privs(struct userNode *target, char *flag, int add)
1601 {
1602     client_modify_priv_by_name(target, flag, add);
1603     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1604 }
1605
1606 static CMD_FUNC(cmd_privs)
1607 {
1608   char *tstr = NULL;
1609   int type = 0;
1610
1611   tstr = conf_get_data("server/type", RECDB_QSTRING);
1612   if(tstr)
1613     type = atoi(tstr);
1614
1615   if (type < 6)
1616     return 1; /* silently ignore */
1617
1618   struct userNode *user = argc > 1 ? GetUserN(argv[1]) : NULL;
1619   char buf[512] = "";
1620   int what = PRIV_ADD;
1621   char *p = 0;
1622   char *tmp;
1623   unsigned int i;
1624
1625   if (argc < 3)
1626     return 0;
1627
1628   if (!user)
1629     return 0;
1630
1631   for (i=1; i<argc; i++) {
1632     strcat(buf, argv[i]);
1633     strcat(buf, " ");
1634   }
1635
1636   for (i = 2; i < argc; i++) {
1637     if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1638     if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1639     for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1640          tmp = x3_strtok(&p, NULL, ",")) {
1641       client_modify_priv_by_name(user, tmp, what);
1642     }
1643   }
1644   return 1;
1645 }
1646
1647 static CMD_FUNC(cmd_burst)
1648 {
1649     extern int rel_age;
1650     char modes[MAXLEN], *members = "";
1651     static char exemptlist[MAXLEN], banlist[MAXLEN];
1652     unsigned int next = 3, res = 1;
1653     int ctype = 0, echeck = 0, bcheck = 0;
1654     struct chanData *cData;
1655     struct chanNode *cNode;
1656     struct userNode *un;
1657     struct modeNode *mNode;
1658     long mode;
1659     int oplevel = -1;
1660     char *user, *end, sep;
1661     time_t in_timestamp;
1662     char* parm = NULL;
1663
1664     if (argc < 3)
1665         return 0;
1666     modes[0] = 0;
1667
1668     exemptlist[0] = 0;
1669     banlist[0] = 0;
1670
1671     while (next < argc) {
1672         switch (argv[next][0]) {
1673         case '+': {
1674             const char *pos;
1675             int n_modes;
1676             for (pos=argv[next], n_modes = 1; *pos; pos++)
1677                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1678                     || (*pos == 'U'))
1679                     n_modes++;
1680             unsplit_string(argv+next, n_modes, modes);
1681             next += n_modes;
1682             break;
1683         }
1684         case '%': {
1685             for(parm = mysep(&argv[next], " "); /* parm = first param */
1686                   parm;   /* While param is not null */
1687                   parm = mysep(&argv[next], " ")  /* parm = next param */
1688                )
1689             {
1690               switch (parm[0]) {
1691                 case '%': {
1692                   ctype = 1;
1693                   break;
1694                 }
1695                 case '~': {
1696                   ctype = 2;
1697                   break;
1698                 }
1699                 default: {
1700                   break;
1701                 }
1702               }
1703               if (ctype == 1) {
1704                 if (bcheck == 0) {
1705                   /* strip % char off start of very first ban */
1706                   if (strlen(parm) > 1) {
1707                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1708                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1709                   }
1710                   bcheck = 1;
1711                 } else {
1712                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1713                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1714                 }
1715               } else if (ctype == 2) {
1716                 if (echeck == 0) {
1717                    echeck = 1;
1718                 } else {
1719                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1720                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1721                 }
1722               }
1723             }
1724             next++;
1725             break;
1726         }
1727         default: members = argv[next++]; break;
1728       }
1729     }
1730
1731     in_timestamp = atoi(argv[2]);
1732     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1733         cNode->timestamp = in_timestamp;
1734         dict_remove(unbursted_channels, cNode->name);
1735         irc_burst(cNode);
1736     }
1737     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1738     cData = cNode->channel_info;
1739
1740     if (!cData) {
1741         if (cNode->modes & MODE_REGISTERED) {
1742             irc_join(opserv, cNode);
1743             irc_mode(opserv, cNode, "-z");
1744             irc_part(opserv, cNode, "");
1745         }
1746     }
1747
1748     /* Burst channel members in now. */
1749     for (user = members, sep = *members, mode = 0; sep; user = end) {
1750         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1751         sep = *end++; end[-1] = 0;
1752         if (sep == ':') {
1753             mode = 0;
1754             while ((sep = *end++)) {
1755                 if (sep == 'o') {
1756                     mode |= MODE_CHANOP;
1757                     oplevel = -1;
1758                 } else if (sep == 'h') {
1759                     mode |= MODE_HALFOP;
1760                     oplevel = -1;
1761                 } else if (sep == 'v') {
1762                     mode |= MODE_VOICE;
1763                     oplevel = -1;
1764                 } else if (isdigit(sep)) {
1765                     mode |= MODE_CHANOP;
1766                     if (oplevel >= 0)
1767                         oplevel += parse_oplevel(end);
1768                     else
1769                         oplevel = parse_oplevel(end);
1770                     while (isdigit(*end)) end++;
1771                 } else
1772                     break;
1773             }
1774             if (rel_age < 0)
1775                 mode = 0;
1776         }
1777         if (!(un = GetUserN(user))) {
1778             res = 0;
1779             continue;
1780         }
1781         if ((mNode = AddChannelUser(un, cNode))) {
1782             mNode->modes = mode;
1783             mNode->oplevel = oplevel;
1784         }
1785     }
1786
1787     return res;
1788 }
1789
1790 /* TODO:
1791  * This is a stub that doesn't actually do anything. It should be completed
1792  * so that bans on *!*@markname.* match users as it does in nefarious
1793  */
1794 static CMD_FUNC(cmd_mark)
1795 {
1796     struct userNode *target;
1797     /*
1798      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1799      */
1800
1801     if(argc < 4)
1802         return 0;
1803     if(!strcasecmp(argv[2], "DNSBL")) {
1804         /* DNSBL <modes> */
1805         return 1;
1806     }
1807     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1808         /* DNSBL_DATA name */
1809         target = GetUserH(argv[1]);
1810         if(!target) {
1811             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1812             return 0;
1813         }
1814         target->mark = strdup(argv[3]);
1815         return 1;
1816
1817     }
1818     else if(!strcasecmp(argv[2], "CVERSION")) {
1819         /* DNSBL_DATA name */
1820         target = GetUserH(argv[1]);
1821         if(!target) {
1822             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1823             return 0;
1824         }
1825
1826         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1827         if(!version)
1828             version = "";
1829
1830         target->version_reply = strdup(version);
1831
1832         if(match_ircglob(version, "WebTV;*"))
1833             target->no_notice = true; /* webbies cant see notices */
1834
1835         return 1;
1836     }
1837     /* unknown type of mark */
1838     return 1;
1839 }
1840
1841 static CMD_FUNC(cmd_mode)
1842 {
1843     struct chanNode *cn;
1844     struct userNode *un;
1845     char *sethost; // sethost - reed/apples
1846     int i; // sethost - reed/apples
1847
1848     if (argc < 3)
1849         return 0;
1850     if (!IsChannelName(argv[1])) {
1851         un = GetUserH(argv[1]);
1852         if (!un) {
1853             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1854             return 0;
1855         }
1856         // sethost - reed/apples
1857         if (argc == 3)
1858         mod_usermode(un, argv[2]);
1859         else {
1860           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1861           i = 0;
1862           while((sethost[i++] = *argv[2]++));
1863           i--;
1864          sethost[i++] = ' ';
1865           while((sethost[i++] = *argv[3]++));
1866           mod_usermode(un, sethost); // sethost - reed/apples
1867         }
1868
1869         return 1;
1870     }
1871
1872     if (!(cn = GetChannel(argv[1]))) {
1873         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1874         return 0;
1875     }
1876     if ((un = GetUserH(origin))) {
1877         struct modeNode *mn;
1878         /* Update idle time for person setting the mode */
1879         if ((mn = GetUserMode(cn, un)))
1880             mn->idle_since = now;
1881     } else {
1882         /* If it came from a server, reset timestamp to re-sync. */
1883         cn->timestamp = atoi(argv[argc-1]);
1884     }
1885
1886     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
1887         const char *str;
1888         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
1889         if (str) {
1890             char modes[MODELEN];
1891             struct userNode *opserv = GetUserH(str);
1892
1893             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
1894             irc_make_chanmode(cn, modes);
1895             irc_mode(opserv, cn, modes);
1896             irc_mode(opserv, cn, DefConChanModes);
1897         }
1898         return 1;
1899     }
1900
1901
1902     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1903 }
1904
1905 static CMD_FUNC(cmd_opmode)
1906 {
1907     struct chanNode *cn;
1908     struct userNode *un;
1909
1910     if (argc < 3)
1911         return 0;
1912
1913     if (!(cn = GetChannel(argv[1]))) {
1914         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1915         return 0;
1916     }
1917     if (!(un = GetUserH(origin))) {
1918         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1919         return 0;
1920     }
1921     if (!IsOper(un)) {
1922         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1923         return 0;
1924     }
1925
1926     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1927 }
1928
1929 static int clear_chanmode(struct chanNode *channel, const char *modes);
1930
1931 static CMD_FUNC(cmd_clearmode)
1932 {
1933     struct chanNode *cn;
1934     struct userNode *un;
1935
1936     if (argc < 3)
1937         return 0;
1938
1939     if (!(cn = GetChannel(argv[1]))) {
1940         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1941         return 0;
1942     }
1943     if (!(un = GetUserH(origin))) {
1944         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1945         return 0;
1946     }
1947     if (!IsOper(un)) {
1948         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1949         return 0;
1950     }
1951
1952     return clear_chanmode(cn, argv[2]);
1953 }
1954
1955 static CMD_FUNC(cmd_topic)
1956 {
1957     struct chanNode *cn;
1958     time_t chan_ts, topic_ts;
1959     struct userNode *user;
1960
1961     if (argc < 3)
1962         return 0;
1963     if (!(cn = GetChannel(argv[1]))) {
1964         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1965         return 0;
1966     }
1967
1968
1969     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
1970         user = GetUserH(origin);
1971         chan_ts = atoi(argv[2]);
1972         topic_ts = atoi(argv[3]);
1973     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
1974         user = GetUserH(strtok(argv[2], "!"));
1975         chan_ts = atoi(argv[3]);
1976         topic_ts = atoi(argv[4]);
1977     } else {                      /* Regular IRCu (No Topic Bursting)*/
1978         user = GetUserH(origin);
1979         chan_ts = cn->timestamp;
1980         topic_ts = now;
1981     }
1982
1983     SetChannelTopic(cn, user, user, argv[argc-1], 0);
1984     cn->topic_time = topic_ts;
1985     return 1;
1986 }
1987
1988 static CMD_FUNC(cmd_num_topic)
1989 {
1990     struct chanNode *cn;
1991
1992     if (!argv[0])
1993         return 0; /* huh? */
1994     if (argv[2]) {
1995         cn = GetChannel(argv[2]);
1996         if (!cn) {
1997             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1998             return 0;
1999         }
2000     } else
2001         return 0;
2002
2003     switch (atoi(argv[0])) {
2004     case 331:
2005         cn->topic_time = 0;
2006         break;  /* no topic */
2007     case 332:
2008         if (argc < 4)
2009             return 0;
2010         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2011         break;
2012     case 333:
2013         if (argc < 5)
2014             return 0;
2015         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2016         cn->topic_time = atoi(argv[4]);
2017         break;
2018     default:
2019         return 0; /* should never happen */
2020     }
2021     return 1;
2022 }
2023
2024 static CMD_FUNC(cmd_num_gline)
2025 {
2026     if (argc < 6)
2027         return 0;
2028     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2029     return 1;
2030 }
2031
2032 static CMD_FUNC(cmd_num_shun)
2033 {
2034     if (argc < 6)
2035         return 0;
2036     shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2037     return 1;
2038 }
2039
2040 static CMD_FUNC(cmd_quit)
2041 {
2042     struct userNode *user;
2043     if (argc < 2)
2044         return 0;
2045     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2046      * call DelUser unless we have the user in our grasp. */
2047     if ((user = GetUserH(origin)))
2048         DelUser(user, NULL, false, argv[1]);
2049     return 1;
2050 }
2051
2052 static CMD_FUNC(cmd_kill)
2053 {
2054     struct userNode *user;
2055     if (argc < 2)
2056         return 0;
2057     user = GetUserN(argv[1]);
2058     if (!user) {
2059         /* If we get a KILL for a non-existent user, it could be a
2060          * Ghost response to a KILL we sent out earlier.  So we only
2061          * whine if the target is local.
2062          */
2063         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2064             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2065         return 0;
2066     }
2067
2068     if (IsLocal(user) && IsService(user)) {
2069         /* TODO: rate limit this so silly things don't happen. */
2070         ReintroduceUser(user);
2071         return 1;
2072     }
2073
2074     DelUser(user, NULL, false, argv[2]);
2075     return 1;
2076 }
2077
2078 static CMD_FUNC(cmd_part)
2079 {
2080     struct userNode *user;
2081
2082     if (argc < 2)
2083         return 0;
2084     user = GetUserH(origin);
2085     if (!user)
2086         return 0;
2087     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
2088     return 1;
2089 }
2090
2091 static CMD_FUNC(cmd_svspart)
2092 {
2093     struct userNode *user;
2094
2095     if (argc < 3)
2096         return 0;
2097     user = GetUserN(argv[1]);
2098     if (!user)
2099         return 0;
2100     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2101     return 1;
2102 }
2103
2104 static CMD_FUNC(cmd_silence)
2105 {
2106     struct userNode *user;
2107     char *mask;
2108     char *new_mask;
2109     unsigned int i;
2110
2111     if (argc < 2)
2112         return 0;
2113
2114     user = GetUserN(argv[1]);
2115
2116     /* Sanity, go nuts if this happens */
2117     if (!user)
2118         return 0;
2119
2120     /*  We can safely ignore this if a user adding a silence is not
2121      *  ignored. However this brings up a TODO. If a user logs in and
2122      *  they have silences on the IRCd then we need to set them here
2123      *  somehow
2124      */
2125     if (!user->handle_info)
2126         return 1;
2127
2128     mask = argv[2];
2129
2130     if (*mask == '-') {
2131         for (i=0; i<user->handle_info->ignores->used; i++) {
2132             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2133                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2134         }
2135     } else {
2136         for (i=0; i<user->handle_info->ignores->used; i++) {
2137             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2138                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2139         }
2140
2141         new_mask = strdup(mask+1);
2142         string_list_append(user->handle_info->ignores, new_mask);
2143     }
2144     return 1;
2145 }
2146
2147 static CMD_FUNC(cmd_kick)
2148 {
2149     if (argc < 3)
2150         return 0;
2151     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2152     return 1;
2153 }
2154
2155 static CMD_FUNC(cmd_squit)
2156 {
2157     struct server *server;
2158     char *uplink;
2159
2160     if (argc < 4)
2161         return 0;
2162     if (!(server = GetServerH(argv[1])))
2163         return 0;
2164
2165     if (server == self->uplink) {
2166         /* Force a reconnect to the currently selected server. */
2167         cManager.uplink->tries = 0;
2168         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2169         close_socket();
2170         return 1;
2171     }
2172
2173     uplink = strdup(server->uplink->name);
2174     DelServer(server, 0, argv[3]);
2175     /* if its a pingout and pingout connecting is enabled
2176                or its a read error and readerror connecting is enabled
2177                or were doing a "N" and i need to connect that server somewhere */
2178     routing_handle_squit(argv[1], uplink, argv[3]);
2179     free(uplink);
2180     return 1;
2181 }
2182
2183 static CMD_FUNC(cmd_privmsg)
2184 {
2185     struct privmsg_desc pd;
2186     if (argc != 3)
2187         return 0;
2188     pd.user = GetUserH(origin);
2189     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2190         return 1;
2191
2192     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2193         const char *str;
2194         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2195         if (str)
2196             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2197         return 1;
2198     }
2199
2200     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2201         return 1; /* Silently Ignore */
2202
2203     pd.is_notice = 0;
2204     pd.text = argv[2];
2205     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2206
2207     return 1;
2208 }
2209
2210 static CMD_FUNC(cmd_notice)
2211 {
2212     struct privmsg_desc pd;
2213     struct server *srv;
2214     int nuser = 0;
2215
2216     if (argc != 3)
2217         return 0;
2218
2219     pd.user = GetUserH(origin);
2220     if(!pd.user)
2221         nuser = 1;
2222     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2223     }
2224     else {
2225         pd.is_notice = 1;
2226         pd.text = argv[2];
2227         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2228     }
2229
2230     srv = GetServerH(origin);
2231     if(srv) {
2232         char *sargv[MAXNUMPARAMS];
2233         int sargc;
2234
2235         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2236
2237         if(!strcasecmp(sargv[0], "Connect:")) {
2238             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2239             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2240                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2241             }
2242         }
2243         else if(!strcasecmp(sargv[0], "Link")) {
2244             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2245              *
2246              * :Link with laptop.afternet.org cancelled: Connection refused
2247              */
2248             if(!strcasecmp(sargv[3], "cancelled:")) {
2249                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2250             }
2251         }
2252     }
2253     return 1;
2254 }
2255
2256 static CMD_FUNC(cmd_away)
2257 {
2258     struct userNode *uNode;
2259
2260     uNode = GetUserH(origin);
2261     if (!uNode)
2262         return 1;
2263     if (argc < 2)
2264         uNode->modes &= ~FLAGS_AWAY;
2265     else
2266         uNode->modes |= FLAGS_AWAY;
2267     return 1;
2268 }
2269
2270 static CMD_FUNC(cmd_gline)
2271 {
2272     if (argc < 3)
2273         return 0;
2274     if (argv[2][0] == '+') {
2275         if (argc < 5)
2276             return 0;
2277         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2278         return 1;
2279     } else if (argv[2][0] == '-') {
2280         gline_remove(argv[2]+1, 0);
2281         return 1;
2282     } else
2283         return 0;
2284 }
2285
2286 static CMD_FUNC(cmd_shun)
2287 {
2288     if (argc < 3)
2289         return 0;
2290     if (argv[2][0] == '+') {
2291         if (argc < 5)
2292             return 0;
2293         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2294         return 1;
2295     } else if (argv[2][0] == '-') {
2296         shun_remove(argv[2]+1, 0);
2297         return 1;
2298     } else
2299         return 0;
2300 }
2301
2302 static CMD_FUNC(cmd_svsnick)
2303 {
2304     struct userNode *target, *dest;
2305     if ((argc < 4)
2306         || !(target = GetUserN(argv[1]))
2307         || !IsLocal(target)
2308         || (dest = GetUserH(argv[2])))
2309         return 0;
2310     NickChange(target, argv[2], 0);
2311     return 1;
2312 }
2313
2314 static oper_func_t *of_list;
2315 static unsigned int of_size = 0, of_used = 0;
2316
2317 void
2318 free_user(struct userNode *user)
2319 {
2320     free(user->nick);
2321     free(user);
2322 }
2323
2324 static void
2325 parse_cleanup(void)
2326 {
2327     unsigned int nn;
2328     free(of_list);
2329     free(privmsg_funcs);
2330     free(notice_funcs);
2331     free(mcf_list);
2332     dict_delete(irc_func_dict);
2333     for (nn=0; nn<dead_users.used; nn++)
2334         free_user(dead_users.list[nn]);
2335     userList_clean(&dead_users);
2336 }
2337
2338 static void
2339 p10_conf_reload(void) {
2340     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2341 }
2342
2343 static void
2344 remove_unbursted_channel(struct chanNode *cNode) {
2345     if (unbursted_channels)
2346         dict_remove(unbursted_channels, cNode->name);
2347 }
2348
2349 void
2350 init_parse(void)
2351 {
2352     const char *str, *desc;
2353     int numnick, usermask, max_users;
2354     char numer[COMBO_NUMERIC_LEN+1];
2355
2356     /* read config items */
2357     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2358     extended_accounts = str ? enabled_string(str) : 1;
2359     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2360     ping_freq = str ? ParseInterval(str) : 120;
2361     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2362     ping_timeout = str ? ParseInterval(str) : 30;
2363     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2364     force_n2k = str ? enabled_string(str) : 1;
2365     str = conf_get_data("server/numeric", RECDB_QSTRING);
2366     if (!str) {
2367         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2368         exit(1);
2369     }
2370     numnick = atoi(str);
2371     str = conf_get_data("server/max_users", RECDB_QSTRING);
2372     max_users = str ? atoi(str) : 4096;
2373     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2374     usermask--;
2375     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2376         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2377     else
2378         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2379
2380     str = conf_get_data("server/his_servername", RECDB_QSTRING);
2381     his_servername = str ? strdup(str) : NULL;
2382     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2383     his_servercomment = str ? strdup(str) : NULL;
2384
2385     str = conf_get_data("server/hostname", RECDB_QSTRING);
2386     desc = conf_get_data("server/description", RECDB_QSTRING);
2387     if (!str || !desc) {
2388         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2389         exit(1);
2390     }
2391     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2392     conf_register_reload(p10_conf_reload);
2393
2394     irc_func_dict = dict_new();
2395     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2396     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2397     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2398     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2399     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2400     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2401     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2402     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2403     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2404     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2405     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2406     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2407     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2408     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2409     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2410     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2411     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2412     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2413     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2414     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2415     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2416     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2417     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2418     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2419     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2420     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2421     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2422     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2423     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2424     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2425     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2426     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2427     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2428     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2429     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2430     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2431     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2432     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2433     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2434     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2435     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2436     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2437     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2438     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2439     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2440     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2441     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2442     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2443     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2444     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2445     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2446     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2447     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2448     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2449     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2450     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2451     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2452     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2453     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2454     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2455     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2456     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2457     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2458     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2459     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2460     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2461     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2462     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2463     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2464     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2465     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2466     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2467     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2468     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2469     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2470     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2471
2472     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2473     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2474     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2475     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2476
2477     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2478      * Apparently to obliterate channels from any servers that think they
2479      * exist?
2480      */
2481     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2482     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2483     /* Ignore invites */
2484     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2485     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2486     /* DESYNCH is just informational, so ignore it */
2487     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2488     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2489     /* Ignore channel operator notices. */
2490     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2491     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2492     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2493     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2494     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2495     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2496     /* Ignore opers being silly. */
2497     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2498     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2499     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2500     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2501     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2502     /* Ignore dnsbl exemptions */
2503     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2504     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2505     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2506     /* ignore ALIST for now */
2507     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2508     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2509     /* Ignore remote luser */
2510     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2511     /* We have reliable clock!  Always!  Wraaa! */
2512     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2513     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2514
2515     /* ignore /trace and /motd commands targetted at us */
2516     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2517     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2518
2519     /* handle topics */
2520     dict_insert(irc_func_dict, "331", cmd_num_topic);
2521     dict_insert(irc_func_dict, "332", cmd_num_topic);
2522     dict_insert(irc_func_dict, "333", cmd_num_topic);
2523     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2524     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2525     /* ban list resetting */
2526     /* "stats g" responses */
2527     dict_insert(irc_func_dict, "247", cmd_num_gline);
2528     dict_insert(irc_func_dict, "542", cmd_num_shun);
2529     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2530     /* other numeric responses we might get */
2531     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2532     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2533     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2534     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2535     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2536     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2537     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2538     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2539     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2540
2541     num_privmsg_funcs = 16;
2542     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2543     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2544
2545     num_notice_funcs = 16;
2546     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2547     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2548
2549     userList_init(&dead_users);
2550     reg_del_channel_func(remove_unbursted_channel);
2551     reg_exit_func(parse_cleanup);
2552     // reg_notice_func(opserv, check_ctcp);
2553 }
2554
2555 int
2556 parse_line(char *line, int recursive)
2557 {
2558     char *argv[MAXNUMPARAMS], *origin;
2559     int argc, cmd, res=0;
2560     cmd_func_t *func;
2561
2562     argc = split_line(line, true, MAXNUMPARAMS, argv);
2563     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2564     if (argc > cmd) {
2565         if (cmd) {
2566             if (argv[0][0] == ':') {
2567                 origin = argv[0]+1;
2568             } else if (!argv[0][1] || !argv[0][2]) {
2569                 struct server *sNode = GetServerN(argv[0]);
2570                 origin = sNode ? sNode->name : 0;
2571             } else {
2572                 struct userNode *uNode = GetUserN(argv[0]);
2573                 origin = uNode ? uNode->nick : 0;
2574             }
2575         } else
2576             origin = 0;
2577         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2578             res = func(origin, argc-cmd, argv+cmd);
2579     }
2580     if (!res) {
2581         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2582     } else if (!recursive) {
2583         unsigned int i;
2584         for (i=0; i<dead_users.used; i++)
2585             free_user(dead_users.list[i]);
2586         dead_users.used = 0;
2587     }
2588     return res;
2589 }
2590
2591 static void
2592 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2593 {
2594     char *j, old;
2595
2596     do {
2597         j = target_list;
2598         while (*j != 0 && *j != ',')
2599             j++;
2600         old = *j;
2601         *j = 0;
2602
2603         if (IsChannelName(target_list)
2604             || (target_list[0] == '0' && target_list[1] == '\0')) {
2605             struct chanNode *chan = GetChannel(target_list);
2606
2607             if (chan) {
2608                 if (cf)
2609                     cf(chan, data);
2610             } else {
2611                 if (nc)
2612                     nc(target_list, data);
2613             }
2614         } else {
2615             struct userNode *user;
2616             struct privmsg_desc *pd = data;
2617
2618             pd->is_qualified = 0;
2619             if (*target_list == '@') {
2620                 user = NULL;
2621             } else if (strchr(target_list, '@')) {
2622                 struct server *server;
2623
2624                 pd->is_qualified = 1;
2625                 user = GetUserH(strtok(target_list, "@"));
2626                 server = GetServerH(strtok(NULL, "@"));
2627
2628                 if (user && (user->uplink != server)) {
2629                     /* Don't attempt to index into any arrays
2630                        using a user's numeric on another server. */
2631                     user = NULL;
2632                 }
2633             } else {
2634                 user = GetUserN(target_list);
2635             }
2636
2637             if (user) {
2638                 if (uf)
2639                     uf(user, data);
2640             } else {
2641                 if (nu)
2642                     nu(target_list, data);
2643             }
2644         }
2645         target_list = j+1;
2646     } while (old == ',');
2647 }
2648
2649 static int
2650 get_local_numeric(void)
2651 {
2652     static unsigned int next_numeric = 0;
2653     if (self->clients > self->num_mask)
2654         return -1;
2655     while (self->users[next_numeric])
2656         if (++next_numeric > self->num_mask)
2657             next_numeric = 0;
2658     return next_numeric;
2659 }
2660
2661 static void
2662 make_numeric(struct server *svr, int local_num, char *outbuf)
2663 {
2664     int slen, llen;
2665
2666     if (force_n2k || svr->numeric[1]) {
2667         slen = 2;
2668         llen = 3;
2669     } else {
2670         slen = 1;
2671         llen = (local_num < 64*64) ? 2 : 3;
2672     }
2673     strncpy(outbuf, svr->numeric, slen);
2674     inttobase64(outbuf+slen, local_num, llen);
2675     outbuf[slen+llen] = 0;
2676 }
2677
2678 struct server *
2679 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
2680 {
2681     struct server* sNode;
2682     int slen, mlen;
2683
2684     if ((sNode = GetServerN(numeric))) {
2685         /* This means we're trying to re-add an existant server.
2686          * To be safe, we should forget the previous incarnation.
2687          * (And all its linked servers.)
2688          *
2689          * It usually only happens in replays when the original
2690          * had a ping timeout and the replay didn't (because
2691          * replaying a ping timeout invariably gets things wrong).
2692          */
2693         DelServer(sNode, 0, NULL);
2694     }
2695
2696     switch (strlen(numeric)) {
2697     case 5: slen = 2; mlen = 3; break;
2698     case 4: slen = 1; mlen = 3; break;
2699     case 3: slen = 1; mlen = 2; break;
2700     default:
2701         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2702         return NULL;
2703     }
2704
2705     sNode = calloc(1, sizeof(*sNode));
2706     sNode->uplink = uplink;
2707     safestrncpy(sNode->name, name, sizeof(sNode->name));
2708     sNode->num_mask = base64toint(numeric+slen, mlen);
2709     sNode->hops = hops;
2710     sNode->boot = boot;
2711     sNode->link = link;
2712     strncpy(sNode->numeric, numeric, slen);
2713     safestrncpy(sNode->description, description, sizeof(sNode->description));
2714     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2715     serverList_init(&sNode->children);
2716     if (sNode->uplink) {
2717         /* uplink may be NULL if we're just building ourself */
2718         serverList_append(&sNode->uplink->children, sNode);
2719     }
2720     servers_num[base64toint(numeric, slen)] = sNode;
2721     dict_insert(servers, sNode->name, sNode);
2722     return sNode;
2723 }
2724
2725 void DelServer(struct server* serv, int announce, const char *message)
2726 {
2727     unsigned int i;
2728
2729     /* If we receive an ERROR command before the SERVER
2730      * command a NULL server can be passed */
2731     if (!serv)
2732         return;
2733
2734     /* Hrm, what's the right way to SQUIT some other server?
2735      * (This code is only to handle killing juped servers.) */
2736     if (announce && (serv->uplink == self) && (serv != self->uplink))
2737         irc_squit(serv, message, NULL);
2738
2739     /* must recursively remove servers linked to this one first */
2740     for (i=serv->children.used;i>0;)
2741         if (serv->children.list[--i] != self)
2742             DelServer(serv->children.list[i], false, NULL);
2743
2744     /* clean up server's user hash tables */
2745     for (i=0;i<=serv->num_mask;i++)
2746         if (serv->users[i])
2747             DelUser(serv->users[i], NULL, false, "server delinked");
2748
2749     /* delete server */
2750     if (serv->uplink)
2751         serverList_remove(&serv->uplink->children, serv);
2752     if (serv == self->uplink)
2753         self->uplink = NULL;
2754     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2755     dict_remove(servers, serv->name);
2756     serverList_clean(&serv->children);
2757     free(serv->users);
2758     free(serv);
2759 }
2760
2761 struct userNode *
2762 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
2763 {
2764     char numeric[COMBO_NUMERIC_LEN+1];
2765     int local_num = get_local_numeric();
2766     time_t timestamp = now;
2767     struct userNode *old_user = GetUserH(nick);
2768
2769     if (old_user) {
2770         if (IsLocal(old_user))
2771             return old_user;
2772         timestamp = old_user->timestamp - 1;
2773     }
2774     if (local_num == -1) {
2775         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2776         return 0;
2777     }
2778     if (!hostname)
2779         hostname = self->name;
2780     make_numeric(self, local_num, numeric);
2781     /* TODO: Make these modes part of the conf file */
2782     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
2783 }
2784
2785 struct userNode *
2786 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2787 {
2788     char numeric[COMBO_NUMERIC_LEN+1];
2789     int local_num = get_local_numeric();
2790     time_t timestamp = now;
2791     struct userNode *old_user = GetUserH(nick);
2792
2793     if (old_user) {
2794         if (IsLocal(old_user))
2795             return old_user;
2796         timestamp = old_user->timestamp - 1;
2797     }
2798     if (local_num == -1) {
2799         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2800         return 0;
2801     }
2802     make_numeric(self, local_num, numeric);
2803     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2804 }
2805
2806 int
2807 is_valid_nick(const char *nick) {
2808     unsigned int ii;
2809     /* IRC has some of The Most Fucked-Up ideas about character sets
2810      * in the world.. */
2811     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2812         return 0;
2813     for (ii = 0; nick[ii]; ++ii)
2814         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2815             return 0;
2816     if (strlen(nick) > nicklen)
2817         return 0;
2818     return 1;
2819 }
2820
2821 static struct userNode*
2822 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)
2823 {
2824     struct userNode *oldUser, *uNode;
2825     unsigned int n, ignore_user;
2826     char *tstr;
2827     int type;
2828
2829     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2830         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2831         return NULL;
2832     }
2833
2834     if (!uplink) {
2835         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2836         return NULL;
2837     }
2838
2839     if (uplink != GetServerN(numeric)) {
2840         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2841         return NULL;
2842     }
2843
2844     if (!is_valid_nick(nick)) {
2845         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2846         return NULL;
2847     }
2848
2849     ignore_user = 0;
2850     if ((oldUser = GetUserH(nick))) {
2851         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2852             /* The service should collide the new user off. */
2853             oldUser->timestamp = timestamp - 1;
2854             irc_user(oldUser);
2855         }
2856         if (oldUser->timestamp > timestamp) {
2857             /* "Old" user is really newer; remove them */
2858             DelUser(oldUser, 0, 1, "Overruled by older nick");
2859         } else {
2860             /* User being added is too new; do not add them to
2861              * clients, but do add them to the server's list, since it
2862              * will send a KILL and QUIT soon. */
2863             ignore_user = 1;
2864         }
2865     }
2866
2867     /* create new usernode and set all values */
2868     uNode = calloc(1, sizeof(*uNode));
2869     uNode->nick = strdup(nick);
2870     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2871     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2872     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2873     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2874     irc_p10_pton(&uNode->ip, realip);
2875
2876     tstr = conf_get_data("server/type", RECDB_QSTRING);
2877     type = atoi(tstr);
2878     if (type > 6) {
2879       if (irc_in_addr_is_ipv4(uNode->ip)) {
2880         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
2881         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2882       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
2883         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
2884       }
2885     }
2886
2887     if (!uNode->crypthost && uNode->cryptip)
2888         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
2889
2890     uNode->timestamp = timestamp;
2891     modeList_init(&uNode->channels);
2892     uNode->uplink = uplink;
2893     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2894         uNode->uplink->max_clients = uNode->uplink->clients;
2895     }
2896     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2897     uNode->uplink->users[uNode->num_local] = uNode;
2898     mod_usermode(uNode, modes);
2899
2900     set_geoip_info(uNode);
2901
2902     if (ignore_user)
2903         return uNode;
2904
2905     dict_insert(clients, uNode->nick, uNode);
2906     if (dict_size(clients) > max_clients) {
2907         max_clients = dict_size(clients);
2908         max_clients_time = now;
2909     }
2910     if (IsLocal(uNode))
2911         irc_user(uNode);
2912     for (n=0; n<nuf_used; n++)
2913         if (nuf_list[n](uNode))
2914             break;
2915
2916     if ((uNode->loc == 1) && (uNode->handle_info))
2917         send_func_list(uNode);
2918
2919     return uNode;
2920 }
2921
2922 /* removes user from it's server's hash table and nick hash table */
2923 void
2924 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2925 {
2926     unsigned int n;
2927
2928     verify(user);
2929
2930     /* mark them as dead, in case anybody cares */
2931     user->dead = 1;
2932
2933     /* remove pending adduser commands */
2934     wipe_adduser_pending(NULL, user);
2935
2936     /* remove user from all channels */
2937     while (user->channels.used > 0)
2938         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2939
2940     /* Call these in reverse order so ChanServ can update presence
2941        information before NickServ nukes the handle_info. */
2942     for (n = duf_used; n > 0; )
2943         duf_list[--n](user, killer, why);
2944
2945     user->uplink->clients--;
2946     user->uplink->users[user->num_local] = NULL;
2947     if (IsOper(user))
2948         userList_remove(&curr_opers, user);
2949     /* remove from global dictionary, but not if after a collide */
2950     if (user == dict_find(clients, user->nick, NULL))
2951         dict_remove(clients, user->nick);
2952
2953     if (IsInvisible(user))
2954         invis_clients--;
2955
2956     if (announce) {
2957         if (IsLocal(user))
2958             irc_quit(user, why);
2959         else
2960             irc_kill(killer, user, why);
2961     }
2962
2963     modeList_clean(&user->channels);
2964
2965     /* Clean up version data */
2966     if(user->version_reply) {
2967         free(user->version_reply);
2968         user->version_reply = NULL;
2969     }
2970
2971     /* clean up mark */
2972     if(user->mark) {
2973         free(user->mark);
2974         user->mark = NULL;
2975     }
2976
2977     /* clean up geoip data if any */
2978     if(user->country_code) free(user->country_code);
2979     if(user->city) free(user->city);
2980     if(user->region) free(user->region);
2981     if(user->postal_code) free(user->postal_code);
2982
2983     /* We don't free them, in case we try to privmsg them or something
2984      * (like when a stupid oper kills themself).  We just put them onto
2985      * a list of clients that get freed after processing each line.
2986      */
2987     if (dead_users.size)
2988         userList_append(&dead_users, user);
2989     else
2990         free_user(user);
2991 }
2992
2993 static void call_oper_funcs(struct userNode *user);
2994
2995 void mod_usermode(struct userNode *user, const char *mode_change) {
2996     int add = 1;
2997     const char *word = mode_change;
2998
2999     if (!user || !mode_change)
3000         return;
3001
3002     call_user_mode_funcs(user, mode_change);
3003
3004     while (*word != ' ' && *word) word++;
3005     while (*word == ' ') word++;
3006     while (1) {
3007 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3008         switch (*mode_change++) {
3009         case 0: case ' ': return;
3010         case '+': add = 1; break;
3011         case '-': add = 0; break;
3012         case 'o':
3013             if (add) {
3014                 if(!IsOper(user)) { /* Dont re-oper an oper */
3015                     userList_append(&curr_opers, user);
3016                     call_oper_funcs(user);
3017                 }
3018             } else {
3019                 userList_remove(&curr_opers, user);
3020             }
3021             do_user_mode(FLAGS_OPER);
3022             break;
3023         case 'O': do_user_mode(FLAGS_LOCOP); break;
3024         case 'i': do_user_mode(FLAGS_INVISIBLE);
3025             if (add)
3026                 invis_clients++;
3027             else
3028                 invis_clients--;
3029             break;
3030         case 'w': do_user_mode(FLAGS_WALLOP); break;
3031         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
3032         case 'd': do_user_mode(FLAGS_DEAF); break;
3033         case 'k': do_user_mode(FLAGS_SERVICE); break;
3034         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3035         // sethost - reed/apples
3036         // case 'h': do_user_mode(FLAGS_HELPER); break;
3037         // I check if there's an 'h' in the first part, and if there,
3038         // then everything after the space becomes their new host.
3039         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3040             if (*word) {
3041                 char cloakhost[MAXLEN];
3042                 unsigned int ii;
3043                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3044                     cloakhost[ii++] = *word++;
3045                 cloakhost[ii] = 0;
3046                 while (*word == ' ')
3047                     word++;
3048                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3049             }
3050             break;
3051         case 'c': do_user_mode(FLAGS_CLOAKIP);
3052             if (*word) {
3053                 char cloakip[MAXLEN];
3054                 unsigned int ii;
3055                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3056                     cloakip[ii++] = *word++;
3057                 cloakip[ii] = 0;
3058                 while (*word == ' ')
3059                     word++;
3060                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3061             }
3062             break;
3063         case 'h': do_user_mode(FLAGS_SETHOST);
3064             if (*word) {
3065                 char sethost[MAXLEN];
3066                 unsigned int ii;
3067                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3068                     sethost[ii++] = *word++;
3069                 sethost[ii] = 0;
3070                 while (*word == ' ')
3071                     word++;
3072                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3073             }
3074             break;
3075         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3076         case 'r':
3077             if (*word) {
3078                 char tag[MAXLEN];
3079                 unsigned int ii;
3080                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3081                     tag[ii++] = *word++;
3082                 tag[ii] = 0;
3083                 while (*word == ' ')
3084                     word++;
3085                 call_account_func(user, tag);
3086             }
3087             break;
3088         case 'f':
3089             if (*word) {
3090                 char host[MAXLEN];
3091                 unsigned int ii;
3092                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3093                     host[ii++] = *word++;
3094                 host[ii] = 0;
3095                 while (*word == ' ')
3096                     word++;
3097                 assign_fakehost(user, host, 0);
3098             }
3099             break;
3100         }
3101 #undef do_user_mode
3102     }
3103 }
3104
3105 struct mod_chanmode *
3106 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3107 {
3108     struct mod_chanmode *change;
3109     unsigned int ii, in_arg, ch_arg, add;
3110
3111     if (argc == 0)
3112         return NULL;
3113     if (!(change = mod_chanmode_alloc(argc - 1)))
3114         return NULL;
3115
3116     for (ii = ch_arg = 0, in_arg = add = 1;
3117          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3118          ++ii) {
3119         switch (modes[0][ii]) {
3120         case '+':
3121             add = 1;
3122             break;
3123         case '-':
3124             add = 0;
3125             break;
3126 #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)
3127         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3128         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3129         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3130         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3131         case 'm': do_chan_mode(MODE_MODERATED); break;
3132         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3133         case 'p': do_chan_mode(MODE_PRIVATE); break;
3134         case 'r': do_chan_mode(MODE_REGONLY); break;
3135         case 's': do_chan_mode(MODE_SECRET); break;
3136         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3137         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3138         case 'M': do_chan_mode(MODE_MODUNREG); break;
3139         case 'N': do_chan_mode(MODE_NONOTICE); break;
3140         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3141         case 'T': do_chan_mode(MODE_NOAMSG); break;
3142         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3143         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3144         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3145         case 'z':
3146           if (!(flags & MCP_REGISTERED)) {
3147            do_chan_mode(MODE_REGISTERED);
3148           } else {
3149            mod_chanmode_free(change);
3150            return NULL;
3151           }
3152           break;
3153 #undef do_chan_mode
3154         case 'l':
3155             if (add) {
3156                 if (in_arg >= argc)
3157                     goto error;
3158                 change->modes_set |= MODE_LIMIT;
3159                 change->new_limit = atoi(modes[in_arg++]);
3160             } else {
3161                 change->modes_set &= ~MODE_LIMIT;
3162                 change->modes_clear |= MODE_LIMIT;
3163             }
3164             break;
3165         case 'k':
3166             if (add) {
3167                 if (in_arg >= argc)
3168                     goto error;
3169                 change->modes_set |= MODE_KEY;
3170                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
3171             } else {
3172                 change->modes_clear |= MODE_KEY;
3173                 if (!(flags & MCP_KEY_FREE)) {
3174                     if (in_arg >= argc)
3175                         goto error;
3176                     in_arg++;
3177                 }
3178             }
3179             break;
3180         case 'U':
3181             if (add)
3182             {
3183               if (in_arg >= argc)
3184                   goto error;
3185               change->modes_set |= MODE_UPASS;
3186               safestrncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass));
3187             } else {
3188                 change->modes_clear |= MODE_UPASS;
3189                 if (!(flags & MCP_UPASS_FREE)) {
3190                     if (in_arg >= argc)
3191                         goto error;
3192                     in_arg++;
3193                 }
3194             }
3195             break;
3196         case 'A':
3197             if (add) {
3198                 if (in_arg >= argc)
3199                     goto error;
3200                 change->modes_set |= MODE_APASS;
3201                 safestrncpy(change->new_apass, modes[in_arg++], sizeof(change->new_apass));
3202             } else {
3203                 change->modes_clear |= MODE_APASS;
3204                 if (!(flags & MCP_APASS_FREE)) {
3205                     if (in_arg >= argc)
3206                       goto error;
3207                     in_arg++;
3208                 }
3209             }
3210             break;
3211         case 'b':
3212             if (!(flags & MCP_ALLOW_OVB))
3213                 goto error;
3214             if (in_arg >= argc)
3215                 goto error;
3216             change->args[ch_arg].mode = MODE_BAN;
3217             if (!add)
3218                 change->args[ch_arg].mode |= MODE_REMOVE;
3219             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3220             break;
3221         case 'e':
3222             if (!(flags & MCP_ALLOW_OVB))
3223                 goto error;
3224             if (in_arg >= argc)
3225                 goto error;
3226             change->args[ch_arg].mode = MODE_EXEMPT;
3227             if (!add)
3228                 change->args[ch_arg].mode |= MODE_REMOVE;
3229             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3230             break;
3231         case 'o': case 'h': case 'v':
3232         {
3233             struct userNode *victim;
3234             char *oplevel_str;
3235             int oplevel;
3236
3237             if (in_arg >= argc)
3238                 goto error;
3239             oplevel_str = strchr(modes[in_arg], ':');
3240             if (oplevel_str)
3241             {
3242                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3243                 *oplevel_str++ = '\0';
3244                 oplevel = parse_oplevel(oplevel_str);
3245                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3246                     oplevel = base_oplevel + 1;
3247             }
3248             else if (channel->modes & MODE_UPASS)
3249                 oplevel = base_oplevel + 1;
3250             else
3251                 oplevel = -1;
3252
3253             /* Check that oplevel is within bounds. */
3254             if (oplevel > MAXOPLEVEL)
3255                 oplevel = MAXOPLEVEL;
3256
3257             if (!(flags & MCP_ALLOW_OVB))
3258                 goto error;
3259             if (in_arg >= argc)
3260                 goto error;
3261
3262             if (modes[0][ii] == 'o')
3263                 change->args[ch_arg].mode = MODE_CHANOP;
3264             else if (modes[0][ii] == 'h')
3265                 change->args[ch_arg].mode = MODE_HALFOP;
3266             else if (modes[0][ii] == 'v')
3267                 change->args[ch_arg].mode = MODE_VOICE;
3268
3269             if (!add)
3270                 change->args[ch_arg].mode |= MODE_REMOVE;
3271             if (flags & MCP_FROM_SERVER)
3272                 victim = GetUserN(modes[in_arg++]);
3273             else
3274                 victim = GetUserH(modes[in_arg++]);
3275             if (!victim)
3276                 continue;
3277             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3278             {
3279                 /* Apply the oplevel change */
3280                 change->args[ch_arg].u.member->oplevel = oplevel;
3281                 ch_arg++;
3282             }
3283             break;
3284         }
3285         default:
3286             if (!(flags & MCP_FROM_SERVER))
3287                 goto error;
3288             break;
3289         }
3290     }
3291     change->argc = ch_arg; /* in case any turned out to be ignored */
3292     if (change->modes_set & MODE_SECRET) {
3293         change->modes_set &= ~(MODE_PRIVATE);
3294         change->modes_clear |= MODE_PRIVATE;
3295     } else if (change->modes_set & MODE_PRIVATE) {
3296         change->modes_set &= ~(MODE_SECRET);
3297         change->modes_clear |= MODE_SECRET;
3298     }
3299     return change;
3300   error:
3301     mod_chanmode_free(change);
3302     return NULL;
3303 }
3304
3305 struct chanmode_buffer {
3306     char modes[MAXLEN];
3307     char args[MAXLEN];
3308     struct chanNode *channel;
3309     struct userNode *actor;
3310     unsigned int modes_used;
3311     unsigned int args_used;
3312     size_t chname_len;
3313     unsigned int is_add : 1;
3314     unsigned int is_chanop : 1;
3315 };
3316
3317 static void
3318 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3319 {
3320     size_t arg_len = strlen(arg);
3321     if (buf->modes_used > (MAXMODEPARAMS) ||
3322         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3323         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3324         buf->modes[buf->modes_used + buf->args_used] = '\0';
3325         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3326         buf->modes[0] = buf->is_add ? '+' : '-';
3327         buf->modes_used = 1;
3328         buf->args_used = 0;
3329     }
3330     buf->modes[buf->modes_used++] = ch;
3331     buf->args[buf->args_used++] = ' ';
3332     memcpy(buf->args + buf->args_used, arg, arg_len);
3333     buf->args_used += arg_len;
3334 }
3335
3336 void
3337 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3338 {
3339     struct chanmode_buffer chbuf;
3340     unsigned int arg;
3341     struct modeNode *mn;
3342     char int_buff[32], mode = '\0';
3343
3344     assert(change->argc <= change->alloc_argc);
3345     memset(&chbuf, 0, sizeof(chbuf));
3346     chbuf.channel = channel;
3347     chbuf.actor = who;
3348     chbuf.chname_len = strlen(channel->name);
3349
3350     mn = GetUserMode(channel, who);
3351     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3352         chbuf.is_chanop = 1;
3353
3354     /* First remove modes */
3355     chbuf.is_add = 0;
3356     if (change->modes_clear) {
3357         if (mode != '-')
3358             chbuf.modes[chbuf.modes_used++] = mode = '-';
3359 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3360         DO_MODE_CHAR(PRIVATE, 'p');
3361         DO_MODE_CHAR(SECRET, 's');
3362         DO_MODE_CHAR(MODERATED, 'm');
3363         DO_MODE_CHAR(TOPICLIMIT, 't');
3364         DO_MODE_CHAR(INVITEONLY, 'i');
3365         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3366         DO_MODE_CHAR(LIMIT, 'l');
3367         DO_MODE_CHAR(DELAYJOINS, 'D');
3368         DO_MODE_CHAR(REGONLY, 'r');
3369         DO_MODE_CHAR(NOCOLORS, 'c');
3370         DO_MODE_CHAR(NOCTCPS, 'C');
3371         DO_MODE_CHAR(STRIPCOLOR, 'S');
3372         DO_MODE_CHAR(MODUNREG, 'M');
3373         DO_MODE_CHAR(NONOTICE, 'N');
3374         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3375         DO_MODE_CHAR(NOAMSG, 'T');
3376         DO_MODE_CHAR(OPERSONLY, 'O');
3377         DO_MODE_CHAR(REGISTERED, 'z');
3378         DO_MODE_CHAR(SSLONLY, 'Z');
3379         DO_MODE_CHAR(HIDEMODE, 'L');
3380 #undef DO_MODE_CHAR
3381         if (change->modes_clear & channel->modes & MODE_KEY)
3382             mod_chanmode_append(&chbuf, 'k', channel->key);
3383         if (change->modes_clear & channel->modes & MODE_UPASS)
3384             mod_chanmode_append(&chbuf, 'U', channel->upass);
3385         if (change->modes_clear * channel->modes & MODE_APASS)
3386             mod_chanmode_append(&chbuf, 'A', channel->apass);
3387     }
3388     for (arg = 0; arg < change->argc; ++arg) {
3389         if (!(change->args[arg].mode & MODE_REMOVE))
3390             continue;
3391         if (mode != '-')
3392             chbuf.modes[chbuf.modes_used++] = mode = '-';
3393         switch (change->args[arg].mode & ~MODE_REMOVE) {
3394         case MODE_BAN:
3395             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3396             break;
3397         case MODE_EXEMPT:
3398             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3399             break;
3400         default:
3401             if (change->args[arg].mode & MODE_CHANOP)
3402                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3403             if (change->args[arg].mode & MODE_HALFOP)
3404                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3405             if (change->args[arg].mode & MODE_VOICE)
3406                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3407             break;
3408         }
3409     }
3410
3411     /* Then set them */
3412     chbuf.is_add = 1;
3413     if (change->modes_set) {
3414         if (mode != '+')
3415             chbuf.modes[chbuf.modes_used++] = mode = '+';
3416 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3417         DO_MODE_CHAR(PRIVATE, 'p');
3418         DO_MODE_CHAR(SECRET, 's');
3419         DO_MODE_CHAR(MODERATED, 'm');
3420         DO_MODE_CHAR(TOPICLIMIT, 't');
3421         DO_MODE_CHAR(INVITEONLY, 'i');
3422         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3423         DO_MODE_CHAR(DELAYJOINS, 'D');
3424         DO_MODE_CHAR(REGONLY, 'r');
3425         DO_MODE_CHAR(NOCOLORS, 'c');
3426         DO_MODE_CHAR(NOCTCPS, 'C');
3427         DO_MODE_CHAR(STRIPCOLOR, 'S');
3428         DO_MODE_CHAR(MODUNREG, 'M');
3429         DO_MODE_CHAR(NONOTICE, 'N');
3430         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3431         DO_MODE_CHAR(NOAMSG, 'T');
3432         DO_MODE_CHAR(OPERSONLY, 'O');
3433         DO_MODE_CHAR(REGISTERED, 'z');
3434         DO_MODE_CHAR(SSLONLY, 'Z');
3435         DO_MODE_CHAR(HIDEMODE, 'L');
3436 #undef DO_MODE_CHAR
3437         if(change->modes_set & MODE_KEY)
3438             mod_chanmode_append(&chbuf, 'k', change->new_key);
3439         if (change->modes_set & MODE_UPASS)
3440             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3441         if (change->modes_set & MODE_APASS)
3442             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3443         if(change->modes_set & MODE_LIMIT) {
3444             sprintf(int_buff, "%d", change->new_limit);
3445             mod_chanmode_append(&chbuf, 'l', int_buff);
3446         }
3447     }
3448     for (arg = 0; arg < change->argc; ++arg) {
3449         if (change->args[arg].mode & MODE_REMOVE)
3450             continue;
3451         if (mode != '+')
3452             chbuf.modes[chbuf.modes_used++] = mode = '+';
3453         switch (change->args[arg].mode) {
3454         case MODE_BAN:
3455             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3456             break;
3457         case MODE_EXEMPT:
3458             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3459             break;
3460         default:
3461             if (change->args[arg].mode & MODE_CHANOP)
3462                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3463             if (change->args[arg].mode & MODE_HALFOP)
3464                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3465             if (change->args[arg].mode & MODE_VOICE)
3466                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3467             break;
3468         }
3469     }
3470
3471     /* Flush the buffer and apply changes locally */
3472     if (chbuf.modes_used > 0) {
3473         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3474         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3475         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3476     }
3477     mod_chanmode_apply(who, channel, change);
3478 }
3479
3480 char *
3481 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3482 {
3483     unsigned int used = 0;
3484     assert(change->argc <= change->alloc_argc);
3485     if (change->modes_clear) {
3486         outbuff[used++] = '-';
3487 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3488         DO_MODE_CHAR(PRIVATE, 'p');
3489         DO_MODE_CHAR(SECRET, 's');
3490         DO_MODE_CHAR(MODERATED, 'm');
3491         DO_MODE_CHAR(TOPICLIMIT, 't');
3492         DO_MODE_CHAR(INVITEONLY, 'i');
3493         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3494         DO_MODE_CHAR(LIMIT, 'l');
3495         DO_MODE_CHAR(KEY, 'k');
3496         DO_MODE_CHAR(UPASS, 'U');
3497         DO_MODE_CHAR(APASS, 'A');
3498         DO_MODE_CHAR(DELAYJOINS, 'D');
3499         DO_MODE_CHAR(REGONLY, 'r');
3500         DO_MODE_CHAR(NOCOLORS, 'c');
3501         DO_MODE_CHAR(NOCTCPS, 'C');
3502         DO_MODE_CHAR(STRIPCOLOR, 'S');
3503         DO_MODE_CHAR(MODUNREG, 'M');
3504         DO_MODE_CHAR(NONOTICE, 'N');
3505         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3506         DO_MODE_CHAR(NOAMSG, 'T');
3507         DO_MODE_CHAR(OPERSONLY, 'O');
3508         DO_MODE_CHAR(REGISTERED, 'z');
3509         DO_MODE_CHAR(SSLONLY, 'Z');
3510         DO_MODE_CHAR(HIDEMODE, 'L');
3511 #undef DO_MODE_CHAR
3512     }
3513     if (change->modes_set) {
3514         outbuff[used++] = '+';
3515 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3516         DO_MODE_CHAR(PRIVATE, 'p');
3517         DO_MODE_CHAR(SECRET, 's');
3518         DO_MODE_CHAR(MODERATED, 'm');
3519         DO_MODE_CHAR(TOPICLIMIT, 't');
3520         DO_MODE_CHAR(INVITEONLY, 'i');
3521         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3522         DO_MODE_CHAR(DELAYJOINS, 'D');
3523         DO_MODE_CHAR(REGONLY, 'r');
3524         DO_MODE_CHAR(NOCOLORS, 'c');
3525         DO_MODE_CHAR(NOCTCPS, 'C');
3526         DO_MODE_CHAR(STRIPCOLOR, 'S');
3527         DO_MODE_CHAR(MODUNREG, 'M');
3528         DO_MODE_CHAR(NONOTICE, 'N');
3529         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3530         DO_MODE_CHAR(NOAMSG, 'T');
3531         DO_MODE_CHAR(OPERSONLY, 'O');
3532         DO_MODE_CHAR(REGISTERED, 'z');
3533         DO_MODE_CHAR(SSLONLY, 'Z');
3534         DO_MODE_CHAR(HIDEMODE, 'L');
3535 #undef DO_MODE_CHAR
3536         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3537         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3538         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3539             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3540             break;
3541
3542         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3543             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3544             break;
3545         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3546             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3547             break;
3548         case MODE_KEY|MODE_APASS|MODE_UPASS:
3549             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3550             break;
3551
3552         case MODE_KEY|MODE_APASS:
3553             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3554             break;
3555         case MODE_KEY|MODE_UPASS:
3556             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3557             break;
3558         case MODE_KEY|MODE_LIMIT:
3559             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3560             break;
3561
3562         case MODE_LIMIT|MODE_UPASS:
3563             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3564             break;
3565         case MODE_LIMIT|MODE_APASS:
3566             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3567             break;
3568         case MODE_APASS|MODE_UPASS:
3569             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3570
3571         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3572             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3573             break;
3574
3575         case MODE_APASS:
3576             used += sprintf(outbuff+used, "A %s", change->new_apass);
3577             break;
3578         case MODE_UPASS:
3579             used += sprintf(outbuff+used, "U %s", change->new_upass);
3580             break;
3581         case MODE_KEY:
3582             used += sprintf(outbuff+used, "k %s", change->new_key);
3583             break;
3584         case MODE_LIMIT:
3585             used += sprintf(outbuff+used, "l %d", change->new_limit);
3586             break;
3587         }
3588     }
3589     outbuff[used] = 0;
3590     return outbuff;
3591 }
3592
3593 static int
3594 clear_chanmode(struct chanNode *channel, const char *modes)
3595 {
3596     unsigned int remove;
3597
3598     for (remove = 0; *modes; modes++) {
3599         switch (*modes) {
3600         case 'o': remove |= MODE_CHANOP; break;
3601         case 'h': remove |= MODE_HALFOP; break;
3602         case 'v': remove |= MODE_VOICE; break;
3603         case 'p': remove |= MODE_PRIVATE; break;
3604         case 's': remove |= MODE_SECRET; break;
3605         case 'm': remove |= MODE_MODERATED; break;
3606         case 't': remove |= MODE_TOPICLIMIT; break;
3607         case 'i': remove |= MODE_INVITEONLY; break;
3608         case 'n': remove |= MODE_NOPRIVMSGS; break;
3609         case 'k':
3610             remove |= MODE_KEY;
3611             channel->key[0] = '\0';
3612             break;
3613         case 'A':
3614             remove |= MODE_APASS;
3615             channel->apass[0] = '\0';
3616             break;
3617         case 'U':
3618             remove |= MODE_UPASS;
3619             channel->upass[0] = '\0';
3620             break;
3621         case 'l':
3622             remove |= MODE_LIMIT;
3623             channel->limit = 0;
3624             break;
3625         case 'b': remove |= MODE_BAN; break;
3626         case 'e': remove |= MODE_EXEMPT; break;
3627         case 'D': remove |= MODE_DELAYJOINS; break;
3628         case 'r': remove |= MODE_REGONLY; break;
3629         case 'c': remove |= MODE_NOCOLORS; break;
3630         case 'C': remove |= MODE_NOCTCPS; break;
3631         case 'S': remove |= MODE_STRIPCOLOR; break;
3632         case 'M': remove |= MODE_MODUNREG; break;
3633         case 'N': remove |= MODE_NONOTICE; break;
3634         case 'Q': remove |= MODE_NOQUITMSGS; break;
3635         case 'T': remove |= MODE_NOAMSG; break;
3636         case 'O': remove |= MODE_OPERSONLY; break;
3637         case 'z': remove |= MODE_REGISTERED; break;
3638         case 'Z': remove |= MODE_SSLONLY; break;
3639         case 'L': remove |= MODE_HIDEMODE; break;
3640         }
3641     }
3642
3643     if (!remove)
3644         return 1;
3645
3646     /* Remove simple modes. */
3647     channel->modes &= ~remove;
3648
3649     /* If removing bans, kill 'em all. */
3650     if ((remove & MODE_BAN) && channel->banlist.used) {
3651         unsigned int i;
3652         for (i=0; i<channel->banlist.used; i++)
3653             free(channel->banlist.list[i]);
3654         channel->banlist.used = 0;
3655     }
3656
3657     /* If removing exempts, kill 'em all. */
3658     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
3659         unsigned int i;
3660         for (i=0; i<channel->exemptlist.used; i++)
3661             free(channel->exemptlist.list[i]);
3662         channel->exemptlist.used = 0;
3663     }
3664
3665     /* Remove member modes. */
3666     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3667         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3668         unsigned int i;
3669
3670         for (i = 0; i < channel->members.used; i++)
3671             channel->members.list[i]->modes &= mask;
3672     }
3673
3674     return 1;
3675 }
3676
3677 void
3678 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3679 {
3680     unsigned int numeric = user->num_local;
3681     if (numeric >= num_privmsg_funcs) {
3682         int newnum = numeric + 8;
3683         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3684         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
3685         num_privmsg_funcs = newnum;
3686     }
3687     if (privmsg_funcs[numeric])
3688         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3689     privmsg_funcs[numeric] = handler;
3690 }
3691
3692 void
3693 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3694 {
3695     unsigned int x;
3696
3697     if (!user || handler)
3698       return; /* this really only works with users */
3699
3700     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3701
3702     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
3703        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
3704
3705     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
3706     num_privmsg_funcs--;
3707 }
3708
3709
3710 void
3711 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3712 {
3713     unsigned int numeric = user->num_local;
3714     if (numeric >= num_notice_funcs) {
3715         int newnum = numeric + 8;
3716         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3717         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
3718         num_notice_funcs = newnum;
3719     }
3720     if (notice_funcs[numeric])
3721         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3722     notice_funcs[numeric] = handler;
3723 }
3724
3725 void
3726 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
3727 {
3728     unsigned int x;
3729
3730     if (!user || handler)
3731           return; /* this really only works with users */
3732
3733     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3734
3735     for (x = user->num_local+1; x < num_notice_funcs; x++)
3736        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
3737
3738     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3739     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
3740     num_notice_funcs--;
3741 }
3742
3743 void
3744 reg_oper_func(oper_func_t handler)
3745 {
3746     if (of_used == of_size) {
3747         if (of_size) {
3748             of_size <<= 1;
3749             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
3750         } else {
3751             of_size = 8;
3752             of_list = malloc(of_size*sizeof(oper_func_t));
3753         }
3754     }
3755     of_list[of_used++] = handler;
3756 }
3757
3758 static void
3759 call_oper_funcs(struct userNode *user)
3760 {
3761     unsigned int n;
3762     if (IsLocal(user))
3763         return;
3764     for (n=0; n<of_used; n++)
3765         of_list[n](user);
3766 }
3767
3768 static void
3769 send_burst(void)
3770 {
3771     unsigned int i, hop, max_hop=1;
3772     dict_iterator_t it;
3773
3774     /* burst (juped) servers, closest first (except self, which is sent already) */
3775     for (i=0; i<ArrayLength(servers_num); i++)
3776         if (servers_num[i] && servers_num[i]->hops > max_hop)
3777             max_hop = servers_num[i]->hops;
3778     for (hop=1; hop<=max_hop; hop++) {
3779         for (i=0;i<ArrayLength(servers_num);i++) {
3780             if (servers_num[i]
3781                 && (servers_num[i]->hops == hop)
3782                 && (servers_num[i] != self->uplink))
3783                 irc_server(servers_num[i]);
3784         }
3785     }
3786
3787     /* burst local nicks */
3788     for (i=0; i<=self->num_mask; i++)
3789         if (self->users[i])
3790             irc_user(self->users[i]);
3791
3792     /* build dict of unbursted channel names (just copy existing channels) */
3793     unbursted_channels = dict_new();
3794     for (it = dict_first(channels); it; it = iter_next(it))
3795         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3796 }
3797
3798 /*
3799  * Oplevel parsing
3800  */
3801 static int
3802 parse_oplevel(char *str)
3803 {
3804     int oplevel = 0;
3805     while (isdigit(*str))
3806         oplevel = oplevel * 10 + *str++ - '0';
3807     return oplevel;
3808 }
3809