src/proto-p10.c

   1 /* proto-p10.c - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "nickserv.h"
  22 #include "chanserv.h"
  23 #include "hash.h"
  24 #include "helpfile.h"
  25 #include "hosthiding.h"
  26 #include "proto-common.c"
  27 #include "opserv.h"
  28
  29 /* Full commands. */
  30 #define CMD_ACCOUNT             "ACCOUNT"
  31 #define CMD_ADMIN               "ADMIN"
  32 #define CMD_ALIST               "ALIST"
  33 #define CMD_ASLL                "ASLL"
  34 #define CMD_AWAY                "AWAY"
  35 #define CMD_BURST               "BURST"
  36 #define CMD_CLEARMODE           "CLEARMODE"
  37 #define CMD_CLOSE               "CLOSE"
  38 #define CMD_CNOTICE             "CNOTICE"
  39 #define CMD_CONNECT             "CONNECT"
  40 #define CMD_CPRIVMSG            "CPRIVMSG"
  41 #define CMD_CREATE              "CREATE"
  42 #define CMD_DESTRUCT            "DESTRUCT"
  43 #define CMD_DESYNCH             "DESYNCH"
  44 #define CMD_DIE                 "DIE"
  45 #define CMD_DNS                 "DNS"
  46 #define CMD_EOB                 "END_OF_BURST"
  47 #define CMD_EOB_ACK             "EOB_ACK"
  48 #define CMD_ERROR               "ERROR"
  49 #define CMD_FAKEHOST            "FAKE"
  50 #define CMD_GET                 "GET"
  51 #define CMD_GLINE               "GLINE"
  52 #define CMD_HASH                "HASH"
  53 #define CMD_HELP                "HELP"
  54 #define CMD_INFO                "INFO"
  55 #define CMD_INVITE              "INVITE"
  56 #define CMD_ISON                "ISON"
  57 #define CMD_JOIN                "JOIN"
  58 #define CMD_JUPE                "JUPE"
  59 #define CMD_KICK                "KICK"
  60 #define CMD_KILL                "KILL"
  61 #define CMD_LINKS               "LINKS"
  62 #define CMD_LIST                "LIST"
  63 #define CMD_LUSERS              "LUSERS"
  64 #define CMD_MAP                 "MAP"
  65 #define CMD_MARK                "MARK"
  66 #define CMD_MODE                "MODE"
  67 #define CMD_MOTD                "MOTD"
  68 #define CMD_NAMES               "NAMES"
  69 #define CMD_NICK                "NICK"
  70 #define CMD_NOTICE              "NOTICE"
  71 #define CMD_OPER                "OPER"
  72 #define CMD_OPMODE              "OPMODE"
  73 #define CMD_PART                "PART"
  74 #define CMD_PASS                "PASS"
  75 #define CMD_PING                "PING"
  76 #define CMD_PONG                "PONG"
  77 #define CMD_POST                "POST"
  78 #define CMD_PRIVMSG             "PRIVMSG"
  79 #define CMD_PRIVS               "PRIVS"
  80 #define CMD_PROTO               "PROTO"
  81 #define CMD_QUIT                "QUIT"
  82 #define CMD_REHASH              "REHASH"
  83 #define CMD_RESET               "RESET"
  84 #define CMD_RESTART             "RESTART"
  85 #define CMD_RPING               "RPING"
  86 #define CMD_RPONG               "RPONG"
  87 #define CMD_SERVER              "SERVER"
  88 #define CMD_SERVLIST            "SERVLIST"
  89 #define CMD_SERVSET             "SERVSET"
  90 #define CMD_SET                 "SET"
  91 #define CMD_SETTIME             "SETTIME"
  92 #define CMD_SGLINE              "SGLINE"
  93 #define CMD_SHUN                "SHUN"
  94 #define CMD_SILENCE             "SILENCE"
  95 #define CMD_SMO                 "SMO"
  96 #define CMD_SNO                 "SNO"
  97 #define CMD_SSHUN               "SSHUN"
  98 #define CMD_SQUERY              "SQUERY"
  99 #define CMD_SQUIT               "SQUIT"
 100 #define CMD_STATS               "STATS"
 101 #define CMD_SVSJOIN             "SVSJOIN"
 102 #define CMD_SVSNICK             "SVSNICK"
 103 #define CMD_SVSPART             "SVSPART"
 104 #define CMD_SVSQUIT             "SVSQUIT"
 105 #define CMD_SWHOIS              "SWHOIS"
 106 #define CMD_TIME                "TIME"
 107 #define CMD_TOPIC               "TOPIC"
 108 #define CMD_TRACE               "TRACE"
 109 #define CMD_UPING               "UPING"
 110 #define CMD_USER                "USER"
 111 #define CMD_USERHOST            "USERHOST"
 112 #define CMD_USERIP              "USERIP"
 113 #define CMD_VERSION             "VERSION"
 114 #define CMD_WALLCHOPS           "WALLCHOPS"
 115 #define CMD_WALLOPS             "WALLOPS"
 116 #define CMD_WALLHOPS            "WALLHOPS"
 117 #define CMD_WALLUSERS           "WALLUSERS"
 118 #define CMD_WALLVOICES          "WALLVOICES"
 119 #define CMD_WALLHOPS            "WALLHOPS"
 120 #define CMD_WHO                 "WHO"
 121 #define CMD_WHOIS               "WHOIS"
 122 #define CMD_WHOWAS              "WHOWAS"
 123
 124 /* Tokenized commands. */
 125 #define TOK_ACCOUNT             "AC"
 126 #define TOK_ADMIN               "AD"
 127 #define TOK_ALIST               "AL"
 128 #define TOK_ASLL                "LL"
 129 #define TOK_AWAY                "A"
 130 #define TOK_BURST               "B"
 131 #define TOK_CLEARMODE           "CM"
 132 #define TOK_CLOSE               "CLOSE"
 133 #define TOK_CNOTICE             "CN"
 134 #define TOK_CONNECT             "CO"
 135 #define TOK_CPRIVMSG            "CP"
 136 #define TOK_CREATE              "C"
 137 #define TOK_DESTRUCT            "DE"
 138 #define TOK_DESYNCH             "DS"
 139 #define TOK_DIE                 "DIE"
 140 #define TOK_DNS                 "DNS"
 141 #define TOK_EOB                 "EB"
 142 #define TOK_EOB_ACK             "EA"
 143 #define TOK_ERROR               "Y"
 144 #define TOK_EXEMPT              "EX"
 145 #define TOK_FAKEHOST            "FA"
 146 #define TOK_GET                 "GET"
 147 #define TOK_GLINE               "GL"
 148 #define TOK_HASH                "HASH"
 149 #define TOK_HELP                "HELP"
 150 #define TOK_INFO                "F"
 151 #define TOK_INVITE              "I"
 152 #define TOK_ISON                "ISON"
 153 #define TOK_JOIN                "J"
 154 #define TOK_JUPE                "JU"
 155 #define TOK_KICK                "K"
 156 #define TOK_KILL                "D"
 157 #define TOK_LINKS               "LI"
 158 #define TOK_LIST                "LIST"
 159 #define TOK_LUSERS              "LU"
 160 #define TOK_MAP                 "MAP"
 161 #define TOK_MARK                "MK"
 162 #define TOK_MODE                "M"
 163 #define TOK_MOTD                "MO"
 164 #define TOK_NAMES               "E"
 165 #define TOK_NICK                "N"
 166 #define TOK_NOTICE              "O"
 167 #define TOK_OPER                "OPER"
 168 #define TOK_OPMODE              "OM"
 169 #define TOK_PART                "L"
 170 #define TOK_PASS                "PA"
 171 #define TOK_PING                "G"
 172 #define TOK_PONG                "Z"
 173 #define TOK_POST                "POST"
 174 #define TOK_PRIVMSG             "P"
 175 #define TOK_PRIVS               "PRIVS"
 176 #define TOK_PROTO               "PROTO"
 177 #define TOK_QUIT                "Q"
 178 #define TOK_REHASH              "REHASH"
 179 #define TOK_RESET               "RESET"
 180 #define TOK_RESTART             "RESTART"
 181 #define TOK_RPING               "RI"
 182 #define TOK_RPONG               "RO"
 183 #define TOK_SERVER              "S"
 184 #define TOK_SERVLIST            "SERVSET"
 185 #define TOK_SERVSET             "SERVSET"
 186 #define TOK_SET                 "SET"
 187 #define TOK_SETTIME             "SE"
 188 #define TOK_SGLINE              "SGL"
 189 #define TOK_SHUN                "SU"
 190 #define TOK_SILENCE             "U"
 191 #define TOK_SMO                 "SMO"
 192 #define TOK_SNO                 "SNO"
 193 #define TOK_SSHUN               "SSU"
 194 #define TOK_SQUERY              "SQUERY"
 195 #define TOK_SQUIT               "SQ"
 196 #define TOK_STATS               "R"
 197 #define TOK_SVSJOIN             "SJ"
 198 #define TOK_SVSNICK             "SN"
 199 #define TOK_SVSPART             "SP"
 200 #define TOK_SVSQUIT             "SX"
 201 #define TOK_SWHOIS              "SW"
 202 #define TOK_TIME                "TI"
 203 #define TOK_TOPIC               "T"
 204 #define TOK_TRACE               "TR"
 205 #define TOK_UPING               "UP"
 206 #define TOK_USER                "USER"
 207 #define TOK_USERHOST            "USERHOST"
 208 #define TOK_USERIP              "USERIP"
 209 #define TOK_VERSION             "V"
 210 #define TOK_WALLCHOPS           "WC"
 211 #define TOK_WALLOPS             "WA"
 212 #define TOK_WALLHOPS            "WH"
 213 #define TOK_WALLUSERS           "WU"
 214 #define TOK_WALLVOICES          "WV"
 215 #define TOK_WALLHOPS            "WH"
 216 #define TOK_WHO                 "H"
 217 #define TOK_WHOIS               "W"
 218 #define TOK_WHOWAS              "X"
 219
 220 /* Protocol messages; aliased to full commands or tokens depending
 221    on compile-time configuration. ircu prefers tokens WITH THE
 222    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 223    tokenized, because clients' (ie. a linking server) commands are
 224    only checked against the full command list.
 225 */
 226 #if defined(ENABLE_TOKENS)
 227 #define TYPE(NAME)              TOK_ ## NAME
 228 #else /* !ENABLE_TOKENS */
 229 #define TYPE(NAME)              CMD_ ## NAME
 230 #endif /* ENABLE_TOKENS */
 231
 232 #define P10_ACCOUNT             TYPE(ACCOUNT)
 233 #define P10_ADMIN               TYPE(ADMIN)
 234 #define P10_ASLL                TYPE(ASLL)
 235 #define P10_AWAY                TYPE(AWAY)
 236 #define P10_BURST               TYPE(BURST)
 237 #define P10_CLEARMODE           TYPE(CLEARMODE)
 238 #define P10_CLOSE               TYPE(CLOSE)
 239 #define P10_CNOTICE             TYPE(CNOTICE)
 240 #define P10_CONNECT             TYPE(CONNECT)
 241 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 242 #define P10_CREATE              TYPE(CREATE)
 243 #define P10_DESTRUCT            TYPE(DESTRUCT)
 244 #define P10_DESYNCH             TYPE(DESYNCH)
 245 #define P10_DIE                 TYPE(DIE)
 246 #define P10_DNS                 TYPE(DNS)
 247 #define P10_EOB                 TYPE(EOB)
 248 #define P10_EOB_ACK             TYPE(EOB_ACK)
 249 #define P10_ERROR               TYPE(ERROR)
 250 #define P10_FAKEHOST            TYPE(FAKEHOST)
 251 #define P10_GET                 TYPE(GET)
 252 #define P10_GLINE               TYPE(GLINE)
 253 #define P10_HASH                TYPE(HASH)
 254 #define P10_HELP                TYPE(HELP)
 255 #define P10_INFO                TYPE(INFO)
 256 #define P10_INVITE              TYPE(INVITE)
 257 #define P10_ISON                TYPE(ISON)
 258 #define P10_JOIN                TYPE(JOIN)
 259 #define P10_JUPE                TYPE(JUPE)
 260 #define P10_KICK                TYPE(KICK)
 261 #define P10_KILL                TYPE(KILL)
 262 #define P10_LINKS               TYPE(LINKS)
 263 #define P10_LIST                TYPE(LIST)
 264 #define P10_LUSERS              TYPE(LUSERS)
 265 #define P10_MAP                 TYPE(MAP)
 266 #define P10_MARK                TYPE(MARK)
 267 #define P10_MODE                TYPE(MODE)
 268 #define P10_MOTD                TYPE(MOTD)
 269 #define P10_NAMES               TYPE(NAMES)
 270 #define P10_NICK                TYPE(NICK)
 271 #define P10_NOTICE              TYPE(NOTICE)
 272 #define P10_OPER                TYPE(OPER)
 273 #define P10_OPMODE              TYPE(OPMODE)
 274 #define P10_PART                TYPE(PART)
 275 #define P10_PASS                CMD_PASS
 276 #define P10_PING                TYPE(PING)
 277 #define P10_PONG                TYPE(PONG)
 278 #define P10_POST                TYPE(POST)
 279 #define P10_PRIVMSG             TYPE(PRIVMSG)
 280 #define P10_PRIVS               TYPE(PRIVS)
 281 #define P10_PROTO               TYPE(PROTO)
 282 #define P10_QUIT                TYPE(QUIT)
 283 #define P10_REHASH              TYPE(REHASH)
 284 #define P10_RESET               TYPE(RESET)
 285 #define P10_RESTART             TYPE(RESTART)
 286 #define P10_RPING               TYPE(RPING)
 287 #define P10_RPONG               TYPE(RPONG)
 288 #define P10_SERVER              CMD_SERVER
 289 #define P10_SERVLIST            TYPE(SERVLIST)
 290 #define P10_SERVSET             TYPE(SERVSET)
 291 #define P10_SET                 TYPE(SET)
 292 #define P10_SETTIME             TYPE(SETTIME)
 293 #define P10_SGLINE              TYPE(SGLINE)
 294 #define P10_SHUN                TYPE(SHUN)
 295 #define P10_SILENCE             TYPE(SILENCE)
 296 #define P10_SMO                 TYPE(SMO)
 297 #define P10_SNO                 TYPE(SNO)
 298 #define P10_SSHUN               TYPE(SSHUN)
 299 #define P10_SQUERY              TYPE(SQUERY)
 300 #define P10_SQUIT               TYPE(SQUIT)
 301 #define P10_STATS               TYPE(STATS)
 302 #define P10_SVSJOIN             TYPE(SVSJOIN)
 303 #define P10_SVSNICK             TYPE(SVSNICK)
 304 #define P10_SVSPART             TYPE(SVSPART)
 305 #define P10_SVSQUIT             TYPE(SVSQUIT)
 306 #define P10_SWHOIS              TYPE(SWHOIS)
 307 #define P10_TIME                TYPE(TIME)
 308 #define P10_TOPIC               TYPE(TOPIC)
 309 #define P10_TRACE               TYPE(TRACE)
 310 #define P10_UPING               TYPE(UPING)
 311 #define P10_USER                TYPE(USER)
 312 #define P10_USERHOST            TYPE(USERHOST)
 313 #define P10_USERIP              TYPE(USERIP)
 314 #define P10_VERSION             TYPE(VERSION)
 315 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 316 #define P10_WALLOPS             TYPE(WALLOPS)
 317 #define P10_WALLHOPS            TYPE(WALLHOPS)
 318 #define P10_WALLUSERS           TYPE(WALLUSERS)
 319 #define P10_WALLVOICES          TYPE(WALLVOICES)
 320 #define P10_WHO                 TYPE(WHO)
 321 #define P10_WHOIS               TYPE(WHOIS)
 322 #define P10_WHOWAS              TYPE(WHOWAS)
 323 #define P10_EXEMPT              TYPE(EXEMPT)
 324
 325 /* Servers claiming to have a boot or link time before PREHISTORY
 326  * trigger errors to the log.  We hope no server has been running
 327  * constantly since September 1994.  :)
 328  */
 329 #define PREHISTORY 780000000
 330
 331 #define MODELEN                 40 + KEYLEN
 332
 333 static struct server *servers_num[64*64];
 334 static privmsg_func_t *privmsg_funcs;
 335 static unsigned int num_privmsg_funcs;
 336 static privmsg_func_t *notice_funcs;
 337 static unsigned int num_notice_funcs;
 338 static struct dict *unbursted_channels;
 339 static const char *his_servername;
 340 static const char *his_servercomment;
 341 static int extended_accounts;
 342
 343 static struct userNode *AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip);
 344
 345 extern int off_channel;
 346 extern int DefConLevel;
 347 extern int DefConTimeOut;
 348 extern char *DefConChanModes;
 349
 350 static int parse_oplevel(char *str);
 351
 352 char privbuf[512] = "";
 353
 354 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 355  * server and Y's indentifying the client on that server. */
 356 struct server*
 357 GetServerN(const char *numeric)
 358 {
 359     switch (strlen(numeric)) {
 360     default:
 361         return servers_num[base64toint(numeric, 2)];
 362     case 4:
 363     case 3:
 364     case 1:
 365         return servers_num[base64toint(numeric, 1)];
 366     case 0:
 367         return NULL;
 368     }
 369 }
 370
 371 struct userNode*
 372 GetUserN(const char *numeric) /* using numeric */
 373 {
 374     struct userNode *un;
 375     struct server *s;
 376     int n, slen, ulen;
 377
 378     switch (strlen(numeric)) {
 379     default:
 380         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 381         return NULL;
 382     case 5: slen = 2; ulen = 3; break;
 383     case 4: slen = 1; ulen = 3; break;
 384     case 3: slen = 1; ulen = 2; break;
 385     case 2: case 1: case 0:
 386         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 387         return NULL;
 388     }
 389     if (!(s = servers_num[base64toint(numeric, slen)])) {
 390         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 391         return NULL;
 392     }
 393     n = base64toint(numeric+slen, ulen) & s->num_mask;
 394     if (!(un = s->users[n])) {
 395         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 396     }
 397     return un;
 398 }
 399
 400 extern struct userNode *opserv;
 401 static void
 402 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 403 {
 404     char *cmd;
 405     /* if its a version reply, do an alert check (only alerts with version=something) */
 406     if(bot == opserv) {
 407         if(text[0] == '\001') {
 408             text++;
 409             cmd = mysep(&text, " ");
 410             if(!irccasecmp(cmd, "VERSION")) {
 411                 char *version = mysep(&text, "\n");
 412                 if(!version)
 413                     version = "";
 414                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 415                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 416                 user->version_reply = strdup(version);
 417                 /* TODO: put this in the db */
 418                 if(match_ircglob(version, "WebTV;*"))
 419                     user->no_notice = true; /* webbies cant see notices */
 420             }
 421         }
 422     }
 423 }
 424
 425
 426 static void
 427 privmsg_user_helper(struct userNode *un, void *data)
 428 {
 429     struct privmsg_desc *pd = data;
 430     unsigned int num = un->num_local;
 431     if (!pd->is_notice) {
 432         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 433             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 434         }
 435     } else {
 436         if ((num < num_notice_funcs) && notice_funcs[num]) {
 437             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 438             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 439         }
 440     }
 441 }
 442
 443 /* equiv to user doing /connect server port target */
 444 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 445 {
 446     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 447 }
 448
 449 void
 450 irc_squit_route(struct server *srv, const char *message, ...)
 451 {
 452     va_list arg_list;
 453     char buffer[MAXLEN];
 454     va_start(arg_list, message);
 455     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 456     buffer[MAXLEN-1] = 0;
 457
 458     /* When would we squit ourselves exactly?? -Rubin */
 459     if(srv == self && cManager.uplink->state == CONNECTED ) {
 460         unsigned int i;
 461
 462         /* Quit all clients linked to me. */
 463         for(i = 0; i <= self->num_mask; i++) {
 464             if(!self->users[i])
 465                 continue;
 466             irc_quit(self->users[i], buffer);
 467         }
 468     }
 469
 470     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 471
 472     if(srv == self) {
 473         /* Force a reconnect to the currently selected server. */
 474         cManager.uplink->tries = 0;
 475         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 476         close_socket();
 477     }
 478 }
 479
 480 void
 481 irc_server(struct server *srv)
 482 {
 483     char extranum[COMBO_NUMERIC_LEN+1];
 484
 485     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 486     if (srv == self) {
 487         putsock(P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " J10 %s%s +s6 :%s",
 488                 srv->name, srv->hops+1, srv->boot, srv->link_time, srv->numeric, extranum, srv->description);
 489     } else {
 490         putsock("%s " P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " %c10 %s%s +s6 :%s",
 491                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link_time, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 492     }
 493 }
 494
 495 void
 496 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 497 {
 498     if (strlen(input) == 6) {
 499         unsigned int value;
 500         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 501         value = base64toint(input, 6);
 502         if (value)
 503             ip->in6[5] = htons(65535);
 504         ip->in6[6] = htons(value >> 16);
 505         ip->in6[7] = htons(value & 65535);
 506     } else {
 507         unsigned int pos = 0;
 508         do {
 509             if (*input == '_') {
 510                 unsigned int left;
 511                 for (left = (25 - strlen(input)) / 3; left; left--)
 512                     ip->in6[pos++] = 0;
 513                 input++;
 514             } else {
 515                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 516                 input += 3;
 517             }
 518         } while (pos < 8);
 519     }
 520 }
 521
 522 void
 523 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 524 {
 525     if (!irc_in_addr_is_valid(*ip)) {
 526         strcpy(output, "AAAAAA");
 527     } else if (irc_in_addr_is_ipv4(*ip)) {
 528         unsigned int in4;
 529         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 530         inttobase64(output, in4, 6);
 531         output[6] = '\0';
 532     } else if (irc_in_addr_is_ipv6(*ip)) {
 533         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 534         /* Can start by printing out the leading non-zero parts. */
 535         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 536             inttobase64(output, ntohs(ip->in6[ii]), 3);
 537             output += 3;
 538         }
 539         /* Find the longest run of zeros. */
 540         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 541             if (!ip->in6[ii])
 542                 curr_zeros++;
 543             else if (curr_zeros > max_zeros) {
 544                 max_start = ii - curr_zeros;
 545                 max_zeros = curr_zeros;
 546                 curr_zeros = 0;
 547             }
 548         }
 549         if (curr_zeros > max_zeros) {
 550             max_start = ii - curr_zeros;
 551             max_zeros = curr_zeros;
 552             curr_zeros = 0;
 553         }
 554         /* Print the rest of the address */
 555         for (ii = zero; ii < 8; ) {
 556             if ((ii == max_start) && max_zeros) {
 557                 *output++ = '_';
 558                 ii += max_zeros;
 559             } else {
 560                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 561                 output += 3;
 562             }
 563         }
 564         *output = '\0';
 565     } else {
 566         strcpy(output, "???");
 567     }
 568 }
 569
 570 void
 571 irc_user(struct userNode *user)
 572 {
 573     char b64ip[25];
 574     if (!user || IsDummy(user))
 575         return;
 576     irc_p10_ntop(b64ip, &user->ip);
 577     if (user->modes) {
 578         int modelen;
 579         char modes[32];
 580
 581         modelen = 0;
 582         if (IsOper(user))
 583             modes[modelen++] = 'o';
 584         if (IsInvisible(user))
 585             modes[modelen++] = 'i';
 586         if (IsWallOp(user))
 587             modes[modelen++] = 'w';
 588         if (IsService(user))
 589             modes[modelen++] = 'k';
 590         if (IsDeaf(user))
 591             modes[modelen++] = 'd';
 592         if (IsGlobal(user))
 593             modes[modelen++] = 'g';
 594         // sethost - reed/apples
 595         // if (IsHelperIrcu(user))
 596         if (IsSetHost(user))
 597             modes[modelen++] = 'h';
 598         if (IsFakeHost(user))
 599             modes[modelen++] = 'f';
 600         if (IsHiddenHost(user))
 601             modes[modelen++] = 'x';
 602         if (IsBotM(user))
 603             modes[modelen++] = 'B';
 604         if (IsHideChans(user))
 605             modes[modelen++] = 'n';
 606         if (IsHideIdle(user))
 607             modes[modelen++] = 'I';
 608         if (IsXtraOp(user))
 609             modes[modelen++] = 'X';
 610
 611         modes[modelen] = 0;
 612
 613         /* we don't need to put the + in modes because it's in the format string. */
 614         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s +%s %s %s :%s",
 615                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 616     } else {
 617         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s %s %s :%s",
 618                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 619     }
 620 }
 621
 622 void
 623 irc_rename(struct userNode *user, const char *new_handle)
 624 {
 625     if(extended_accounts)
 626         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 627 }
 628
 629 void
 630 irc_delete(struct userNode *user)
 631 {
 632     if(extended_accounts)
 633         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 634 }
 635
 636 void
 637 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 638 {
 639     if(extended_accounts)
 640         putsock("%s " P10_ACCOUNT " %s R %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 641     else
 642         putsock("%s " P10_ACCOUNT " %s %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 643 }
 644
 645 void
 646 irc_fakehost(struct userNode *user, const char *host)
 647 {
 648     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 649 }
 650
 651 void
 652 irc_regnick(UNUSED_ARG(struct userNode *user))
 653 {
 654     /* no operation here */
 655 }
 656
 657 void
 658 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 659 {
 660     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 661 }
 662
 663 void
 664 irc_fetchtopic(struct userNode *from, const char *to)
 665 {
 666     if (!from || !to)
 667         return;
 668     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 669 }
 670
 671 void
 672 irc_squit(struct server *srv, const char *message, const char *service_message)
 673 {
 674     if (!service_message)
 675         service_message = message;
 676
 677     /* Are we leaving the network? */
 678     if (srv == self && cManager.uplink->state == CONNECTED) {
 679         unsigned int i;
 680
 681         /* Quit all clients linked to me. */
 682         for (i = 0; i <= self->num_mask; i++) {
 683             if (!self->users[i])
 684                 continue;
 685             irc_quit(self->users[i], service_message);
 686         }
 687     }
 688
 689     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 690
 691     if (srv == self) {
 692         /* Force a reconnect to the currently selected server. */
 693         cManager.uplink->tries = 0;
 694         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 695         close_socket();
 696     }
 697 }
 698
 699 void
 700 irc_wallchops(struct userNode *from, const char *to, const char *message)
 701 {
 702     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 703 }
 704
 705 void
 706 irc_wallops(const char *format, ...)
 707 {
 708     va_list arg_list;
 709     char buffer[MAXLEN];
 710     va_start(arg_list, format);
 711     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 712     buffer[MAXLEN-1] = 0;
 713     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 714 }
 715
 716 static int
 717 deliver_to_dummy(struct userNode *source, struct userNode *dest, const char *message, int type)
 718 {
 719     unsigned int num;
 720
 721     if (!dest || !IsDummy(dest) || !IsLocal(dest))
 722         return 0;
 723     num = dest->num_local;
 724     switch (type) {
 725     default:
 726         if ((num < num_notice_funcs) && notice_funcs[num])
 727             notice_funcs[num](source, dest, message, 0);
 728         break;
 729     case 1:
 730         if ((num < num_privmsg_funcs) && privmsg_funcs[num])
 731             privmsg_funcs[num](source, dest, message, 0);
 732         break;
 733     }
 734     return 1;
 735 }
 736
 737 void
 738 irc_notice(struct userNode *from, const char *to, const char *message)
 739 {
 740     if (to[0] == '#' || to[0] == '$'
 741         || !deliver_to_dummy(from, GetUserN(to), message, 0))
 742         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 743 }
 744
 745 void
 746 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 747 {
 748     if (!deliver_to_dummy(from, to, message, 0))
 749         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 750 }
 751
 752 void
 753 irc_privmsg(struct userNode *from, const char *to, const char *message)
 754 {
 755     if (to[0] == '#' || to[0] == '$'
 756         || !deliver_to_dummy(from, GetUserN(to), message, 1))
 757         putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 758 }
 759
 760 void
 761 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 762 {
 763     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 764 }
 765
 766 void
 767 irc_version_user(struct userNode *from, struct userNode *to)
 768 {
 769     irc_privmsg_user(from, to, "\001VERSION\001");
 770 }
 771
 772 void
 773 irc_eob(void)
 774 {
 775     putsock("%s " P10_EOB, self->numeric);
 776 }
 777
 778 void
 779 irc_eob_ack(void)
 780 {
 781     putsock("%s " P10_EOB_ACK, self->numeric);
 782
 783     char *nick;
 784     const char *str;
 785     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 786     nick = strdup(str);
 787
 788     if (nick && (DefConLevel < 5)) {
 789         DefConProcess(GetUserH(nick));
 790
 791         if (DefConTimeOut > 0)
 792             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 793     }
 794 }
 795
 796 void
 797 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 798 {
 799     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 800 }
 801
 802 void
 803 irc_ping(const char *payload)
 804 {
 805     putsock("%s " P10_PING " :%s", self->numeric, payload);
 806 }
 807
 808 void
 809 irc_pong(const char *who, const char *data)
 810 {
 811     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 812 }
 813
 814 void
 815 irc_pong_asll(const char *who, const char *orig_ts)
 816 {
 817     char *delim;
 818     struct timeval orig;
 819     struct timeval sys_now;
 820     int diff;
 821
 822     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 823     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 824     gettimeofday(&sys_now, NULL);
 825     diff = (sys_now.tv_sec - orig.tv_sec) * 1000 + (sys_now.tv_usec - orig.tv_usec) / 1000;
 826     putsock("%s " P10_PONG " %s %s %d %lu.%06lu", self->numeric, who, orig_ts, diff, (unsigned long)sys_now.tv_sec, (unsigned long)sys_now.tv_usec);
 827 }
 828
 829 void
 830 irc_pass(const char *passwd)
 831 {
 832     putsock(P10_PASS " :%s", passwd);
 833 }
 834
 835 void
 836 irc_introduce(const char *passwd)
 837 {
 838     void timed_send_ping(void *data);
 839
 840     self->self_burst = self->burst = 1;
 841     irc_pass(passwd);
 842     irc_server(self);
 843     burst_length = 0;
 844     timeq_add(now + ping_freq, timed_send_ping, 0);
 845 }
 846
 847 void
 848 irc_gline(struct server *srv, struct gline *gline, int silent)
 849 {
 850     if (gline->lastmod)
 851         putsock("%s " P10_GLINE " %s +%s " FMT_TIME_T " " FMT_TIME_T " :%s<%s> %s",
 852                 self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->lastmod, silent ? "AUTO " : "", gline->issuer, gline->reason);
 853     else
 854         putsock("%s " P10_GLINE " %s +%s " FMT_TIME_T " :%s<%s> %s",
 855                 self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 856 }
 857
 858 void
 859 irc_shun(struct server *srv, struct shun *shun)
 860 {
 861     if (shun->lastmod)
 862         putsock("%s " P10_SHUN " %s +%s %ld %ld :%s",
 863                 self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->lastmod, shun->reason);
 864     else
 865         putsock("%s " P10_SHUN " %s +%s %ld :%s",
 866                 self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->reason);
 867 }
 868
 869 void
 870 irc_settime(const char *srv_name_mask, time_t new_time)
 871 {
 872     ioset_set_time(new_time);
 873     if (!strcmp(srv_name_mask, "*"))
 874         srv_name_mask = "";
 875     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 876 }
 877
 878 void
 879 irc_ungline(const char *mask)
 880 {
 881     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 882 }
 883
 884 void
 885 irc_unshun(const char *mask)
 886 {
 887     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 888 }
 889
 890 void
 891 irc_burst(struct chanNode *chan)
 892 {
 893     char burst_line[512];
 894     int pos, base_len, len;
 895     struct modeNode *mn;
 896     struct banNode *bn;
 897     struct exemptNode *en;
 898     long last_mode=-1;
 899     unsigned int first_ban;
 900     unsigned int first_exempt;
 901     unsigned int n;
 902
 903     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 904                        self->numeric, chan->name, chan->timestamp);
 905     len = irc_make_chanmode(chan, burst_line+base_len);
 906     pos = base_len + len;
 907     if (len > 0 && chan->members.used > 0)
 908         burst_line[pos++] = ' ';
 909
 910     if(chan->members.used < 1)
 911         return; /* dont burst empty channels (created by discrims) */
 912     /* dump the users */
 913     for (n=0; n<chan->members.used; n++) {
 914         mn = chan->members.list[n];
 915         if (pos > 500) {
 916             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 917             putsock("%s", burst_line);
 918             pos = base_len;
 919             last_mode = -1;
 920         }
 921
 922         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 923         pos += strlen(mn->user->numeric);
 924         if (mn->modes && (mn->modes != last_mode)) {
 925             last_mode = mn->modes;
 926             burst_line[pos++] = ':';
 927             if (last_mode & MODE_CHANOP)
 928                 burst_line[pos++] = 'o';
 929             if (last_mode & MODE_HALFOP)
 930                 burst_line[pos++] = 'h';
 931             if (last_mode & MODE_VOICE)
 932                 burst_line[pos++] = 'v';
 933         }
 934         if ((n+1)<chan->members.used)
 935             burst_line[pos++] = ',';
 936     }
 937     if (chan->banlist.used) {
 938         /* dump the bans */
 939         first_ban = 1;
 940
 941         for (n=0; n<chan->banlist.used; ) {
 942             if (first_ban && (pos < 500)) {
 943                 burst_line[pos++] = ':';
 944                 burst_line[pos++] = '%';
 945             }
 946             bn = chan->banlist.list[n];
 947             len = strlen(bn->ban);
 948             if (pos + 2 + len < 505) {
 949                 memcpy(burst_line + pos, bn->ban, len);
 950                 pos += len;
 951                 burst_line[pos++] = ' ';
 952                 first_ban = 0;
 953                 n++;
 954             } else {
 955                 burst_line[pos-1] = 0;
 956                 putsock("%s", burst_line);
 957                 pos = base_len;
 958                 first_ban = 1;
 959             }
 960         }
 961     }
 962     if (chan->exemptlist.used) {
 963         /* dump the exempts */
 964         first_exempt = 1;
 965
 966         for (n=0; n<chan->exemptlist.used; ) {
 967             if (first_exempt && (pos < 500)) {
 968                 burst_line[pos++] = ' ';
 969                 burst_line[pos++] = '~';
 970                 burst_line[pos++] = ' ';
 971             }
 972             en = chan->exemptlist.list[n];
 973             len = strlen(en->exempt);
 974             if (pos + 2 + len < 505) {
 975                 memcpy(burst_line + pos, en->exempt, len);
 976                 pos += len;
 977                 burst_line[pos++] = ' ';
 978                 first_exempt = 0;
 979                 n++;
 980             } else {
 981                 burst_line[pos-1] = 0;
 982                 putsock("%s", burst_line);
 983                 pos = base_len;
 984                 first_exempt = 1;
 985             }
 986         }
 987     }
 988     /* print the last line */
 989     burst_line[pos] = 0;
 990     putsock("%s", burst_line);
 991 }
 992
 993 void
 994 irc_quit(struct userNode *user, const char *message)
 995 {
 996     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 997 }
 998
 999 void
1000 irc_error(const char *to, const char *message)
1001 {
1002     if (to) {
1003         putsock("%s " P10_ERROR " :%s", to, message);
1004     } else {
1005         putsock(":%s " P10_ERROR " :%s", self->name, message);
1006     }
1007 }
1008
1009 void
1010 irc_kill(struct userNode *from, struct userNode *target, const char *message)
1011 {
1012     if (from) {
1013         putsock("%s " P10_KILL " %s :%s!%s (%s)",
1014                 from->numeric, target->numeric, self->name, from->nick, message);
1015     } else {
1016         putsock("%s " P10_KILL " %s :%s (%s)",
1017                 self->numeric, target->numeric, self->name, message);
1018     }
1019 }
1020
1021 void
1022 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
1023 {
1024     call_channel_mode_funcs(from, target, (char **)&modes, 0);
1025     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
1026             (from ? from->numeric : self->numeric),
1027             target->name, modes, target->timestamp);
1028 }
1029
1030 /* Added to allow services to mode users
1031    2005 - 8 - 10 by Life4Christ
1032 */
1033 void
1034 irc_umode(struct userNode *target, const char *modes)
1035 {
1036     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
1037 }
1038
1039
1040 void
1041 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
1042 {
1043     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
1044 }
1045
1046 void
1047 irc_silence(struct userNode *who, const char *mask, int add)
1048 {
1049     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
1050 }
1051
1052 void
1053 irc_join(struct userNode *who, struct chanNode *what)
1054 {
1055     if (what->members.used == 1) {
1056         putsock("%s " P10_CREATE " %s "FMT_TIME_T,
1057                 who->numeric, what->name, what->timestamp);
1058     } else {
1059         putsock("%s " P10_JOIN " %s "FMT_TIME_T, who->numeric, what->name, what->timestamp);
1060     }
1061 }
1062
1063 void
1064 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1065 {
1066     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1067 }
1068
1069 void
1070 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1071 {
1072     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1073 }
1074
1075 void
1076 irc_svsquit(struct userNode *from, struct userNode *who, char *reason)
1077 {
1078     putsock("%s " P10_SVSQUIT " %s :%s", from->uplink->numeric, who->numeric, reason);
1079 }
1080
1081 void
1082 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1083 {
1084     const char *numeric;
1085     struct modeNode *mn = GetUserMode(channel, who);
1086     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1087     putsock("%s " P10_KICK " %s %s :%s",
1088             numeric, channel->name, target->numeric, msg);
1089 }
1090
1091 void
1092 irc_stats(struct userNode *from, struct server *target, char type)
1093 {
1094     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1095 }
1096
1097 void
1098 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1099 {
1100     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1101 }
1102
1103 void
1104 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1105 {
1106     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1107                                          message ? message : "");
1108
1109 }
1110
1111 void
1112 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1113 {
1114     if (reason) {
1115         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1116     } else {
1117         putsock("%s " P10_PART " %s", who->numeric, what->name);
1118     }
1119 }
1120
1121 void
1122 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1123 {
1124
1125    int type = 4, host_in_topic = 0, hasident = 0;
1126    const char *hstr, *tstr;
1127    char *host, *hostmask;
1128    char shost[MAXLEN];
1129    char sident[MAXLEN];
1130
1131    tstr = conf_get_data("server/type", RECDB_QSTRING);
1132    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1133    if(tstr)
1134      type = atoi(tstr);
1135    else
1136      type = 4;/* default to 040 style topics */
1137
1138    if (hstr) {
1139       if (IsFakeHost(who))
1140           safestrncpy(shost, who->fakehost, sizeof(shost));
1141       else if (IsSetHost(who)) {
1142           hostmask = strdup(who->sethost);
1143           if ((host = (strrchr(hostmask, '@')))) {
1144               hasident = 1;
1145               *host++ = '\0';
1146           } else
1147               host = hostmask;
1148
1149           if (hasident)
1150               safestrncpy(sident, hostmask, sizeof(shost));
1151           else
1152               safestrncpy(sident, who->ident, sizeof(shost));
1153
1154           safestrncpy(shost, host, sizeof(shost));
1155       } else
1156           safestrncpy(shost, who->hostname, sizeof(shost));
1157
1158       host_in_topic = atoi(hstr);
1159    }
1160
1161    if (type >= 5) {
1162      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1163              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1164              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1165    } else {
1166      who = service;
1167      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1168    }
1169 }
1170
1171 void
1172 irc_raw(const char *what)
1173 {
1174     putsock("%s", what);
1175 }
1176
1177 void
1178 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1179 {
1180     va_list arg_list;
1181     char buffer[MAXLEN];
1182     va_start(arg_list, format);
1183     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1184     buffer[MAXLEN-1] = 0;
1185     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1186 }
1187
1188 void
1189 irc_mark(struct userNode *user, char *mark)
1190 {
1191     char *host = user->hostname;
1192
1193     /* 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 */
1194     if(user->mark)
1195         return;
1196
1197     /* if the mark will put us over the  host length, clip some off the left hand side
1198      * to make room...
1199      */
1200     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1201         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1202     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1203     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1204
1205     /* Save it in the user */
1206     user->mark = strdup(mark);
1207
1208     /* If they are not otherwise marked, mark their host with fakehost */
1209     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1210     {
1211         struct modeNode *mn = NULL;
1212         char fakehost[HOSTLEN];
1213         unsigned int count = 0;
1214         unsigned int n = 0;
1215
1216         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1217         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1218
1219         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1220         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1221
1222         for (n=count=0; n<user->channels.used; n++) {
1223             mn = user->channels.list[n];
1224             if (strlen(mn->channel->name) >= 1) /* Sanity */
1225                 check_bans(user, mn->channel->name);
1226         }
1227     }
1228 }
1229
1230 void irc_sno(unsigned int mask, char const* format, ...) {
1231     va_list arg_list;
1232     char buffer[MAXLEN];
1233     va_start(arg_list, format);
1234     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1235     buffer[MAXLEN-1] = 0;
1236     putsock("%s " CMD_SNO " %d :%s", self->numeric, mask, buffer);
1237 }
1238
1239 static void send_burst(void);
1240
1241 static void
1242 change_nicklen(int new_nicklen)
1243 {
1244     unsigned int nn;
1245     char new_nick[NICKLEN+1];
1246     struct userNode *user;
1247
1248     nicklen = new_nicklen;
1249     /* fix up any users we have here */
1250     for (nn=0; nn<=self->num_mask; nn++) {
1251         if (!(user = self->users[nn]))
1252             continue;
1253         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1254         new_nick[nicklen] = 0;
1255         NickChange(user, new_nick, 1);
1256     }
1257 }
1258
1259 static CMD_FUNC(cmd_whois)
1260 {
1261     struct userNode *from;
1262     struct userNode *who;
1263     char buf[MAXLEN];
1264     unsigned int i, mlen, len;
1265
1266     if (argc < 3)
1267         return 0;
1268     if (!(from = GetUserH(origin))) {
1269         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1270         return 0;
1271     }
1272     if (!(who = GetUserH(argv[2]))) {
1273         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1274         return 1;
1275     }
1276
1277     if (IsFakeHost(who) && IsHiddenHost(who))
1278         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->fakehost, who->info);
1279     else if (IsHiddenHost(who) && who->handle_info && hidden_host_suffix)
1280         irc_numeric(from, RPL_WHOISUSER, "%s %s %s.%s * :%s", who->nick, who->ident, who->handle_info->handle, hidden_host_suffix, who->info);
1281     else
1282         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1283
1284     if (IsService(who) || (from == who)) {
1285         struct modeNode *mn;
1286         mlen = strlen(self->name) + strlen(from->nick) + 12 + strlen(who->nick);
1287         len = 0;
1288         *buf = '\0';
1289         for (i = who->channels.used; i > 0; )
1290         {
1291             mn = who->channels.list[--i];
1292
1293             if (!IsOper(from) && (mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1294                 continue;
1295
1296             if (len + strlen(mn->channel->name) + mlen > MAXLEN - 5)
1297             {
1298                 irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1299                 *buf = '\0';
1300                 len = 0;
1301             }
1302
1303             if (IsDeaf(who))
1304                 *(buf + len++) = '-';
1305             if ((mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1306                 *(buf + len++) = '*';
1307             if (mn->modes & MODE_CHANOP)
1308                 *(buf + len++) = '@';
1309             else if (mn->modes & MODE_HALFOP)
1310                 *(buf + len++) = '%';
1311             else if (mn->modes & MODE_VOICE)
1312                 *(buf + len++) = '+';
1313
1314             if (len)
1315                 *(buf + len) = '\0';
1316             strcpy(buf + len, mn->channel->name);
1317             len += strlen(mn->channel->name);
1318             strcat(buf + len, " ");
1319             len++;
1320         }
1321         if (buf[0] != '\0')
1322             irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1323         return 1;
1324     }
1325
1326     if (his_servername && his_servercomment && !IsOper(from) && from != who)
1327         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1328     else
1329         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1330
1331     if (IsAway(who))
1332         irc_numeric(from, RPL_AWAY, "%s :Away", who->nick);
1333     if (IsOper(who))
1334         irc_numeric(from, RPL_WHOISOPERATOR, "%s :%s", who->nick, IsLocal(who) ? "is a megalomaniacal power hungry tyrant" : "is an IRC Operator");
1335     if (who->handle_info)
1336         irc_numeric(from, RPL_WHOISACCOUNT, "%s %s :is logged in as", who->nick, who->handle_info->handle);
1337     if (IsHiddenHost(who) && who->handle_info && (IsOper(from) || from == who))
1338         irc_numeric(from, RPL_WHOISACTUALLY, "%s %s@%s %s :Actual user@host, Actual IP", who->nick, who->ident, who->hostname, irc_ntoa(&who->ip));
1339     if (IsLocal(who) && !IsService(who) && (IsOper(from) || from == who))
1340         irc_numeric(from, RPL_WHOISIDLE, "%s %ld %ld :seconds idle, signon time", who->nick, now - who->idle_since, who->timestamp);
1341
1342     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1343     return 1;
1344 }
1345
1346 static CMD_FUNC(cmd_server)
1347 {
1348     struct server *srv;
1349     const char *str;
1350
1351     if (argc < 8)
1352         return 0;
1353     if (self->uplink) {
1354         /* another server introduced us */
1355         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1356         if (!srv)
1357             return 0;
1358         srv->self_burst = argv[5][0] == 'J';
1359         srv->burst = 1;
1360     } else {
1361         /* this must be our uplink */
1362         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1363         if (!srv)
1364             return 0;
1365         srv->self_burst = argv[5][0] == 'J';
1366         srv->burst = 1;
1367         if ((argv[7][0] == '+') && !force_n2k) {
1368             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1369         }
1370         send_burst();
1371     }
1372
1373     /* Fix up our timestamps if necessary. */
1374     if (srv->boot <= PREHISTORY) {
1375         /* Server from the mists of time.. */
1376         if (srv->hops == 1) {
1377             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1378         }
1379     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1380                && enabled_string(str)) {
1381         /* If we have a reliable clock, we just keep our current time. */
1382     } else {
1383         if (srv->boot <= self->boot) {
1384             /* The other server is older than us.  Accept their timestamp.
1385              * Alternately, we are same age, but we accept their time
1386              * since we are linking to them. */
1387             self->boot = srv->boot;
1388             ioset_set_time(srv->link_time
1389 );
1390         }
1391     }
1392     if (srv == self->uplink) {
1393         extern time_t burst_begin;
1394         burst_begin = now;
1395     }
1396     return 1;
1397 }
1398
1399
1400 static CMD_FUNC(cmd_eob)
1401 {
1402     struct server *sender;
1403     dict_iterator_t it;
1404     unsigned int ii;
1405
1406     if (!(sender = GetServerH(origin)))
1407         return 0;
1408     if (sender == self->uplink) {
1409         cManager.uplink->state = CONNECTED;
1410         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1411             irc_burst(iter_data(it));
1412         dict_delete(unbursted_channels);
1413         unbursted_channels = NULL;
1414         irc_eob();
1415         irc_eob_ack();
1416
1417         /* now that we know who our uplink is,
1418          * we can center the routing map and activate auto-routing.
1419          */
1420         //activate_routing(NULL, NULL, NULL);
1421         routing_init();
1422     }
1423     sender->self_burst = 0;
1424     recalc_bursts(sender);
1425     for (ii=0; ii<slf_used; ii++)
1426         slf_list[ii](sender);
1427     /* let auto-routing figure out if we were
1428      * wating on this server to link a child to it */
1429     /* DONT call this if uplink is _US_ */
1430     if(sender->uplink != self)
1431         routing_handle_connect(sender->name, sender->uplink->name);
1432     return 1;
1433 }
1434
1435 static CMD_FUNC(cmd_eob_ack)
1436 {
1437     extern time_t burst_begin;
1438
1439     if (GetServerH(origin) == self->uplink) {
1440         burst_length = now - burst_begin;
1441         self->self_burst = self->burst = 0;
1442     }
1443     cManager.uplink->state = CONNECTED;
1444     return 1;
1445 }
1446
1447 static CMD_FUNC(cmd_rping)
1448 {
1449     struct server *dest;
1450
1451     if (!(dest = GetServerN(argv[1])))
1452         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1453
1454     if (dest == self)
1455         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1456
1457     return 1;
1458 }
1459
1460 static CMD_FUNC(cmd_ping)
1461 {
1462     struct server *srv;
1463     struct userNode *un;
1464
1465     if (argc > 3)
1466         irc_pong_asll(argv[2], argv[3]);
1467     else if ((srv = GetServerH(origin)))
1468         irc_pong(self->name, srv->numeric);
1469     else if ((un = GetUserH(origin)))
1470         irc_pong(self->name, un->numeric);
1471     else
1472         irc_pong(self->name, origin);
1473
1474     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1475     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1476     timeq_add(now + ping_freq, timed_send_ping, 0);
1477     received_ping();
1478     return 1;
1479 }
1480
1481 static CMD_FUNC(cmd_error_nick)
1482 {
1483     /* Go back to original IRC length .. and try to reconnect :/ */
1484     change_nicklen(9);
1485     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1486     return 1;
1487 }
1488
1489 struct create_desc {
1490     struct userNode *user;
1491     time_t when;
1492 };
1493
1494 static void
1495 join_helper(struct chanNode *chan, void *data)
1496 {
1497     struct create_desc *cd = data;
1498     AddChannelUser(cd->user, chan);
1499 }
1500
1501 static void
1502 create_helper(char *name, void *data)
1503 {
1504     struct create_desc *cd = data;
1505
1506     if (!strcmp(name, "0")) {
1507         while (cd->user->channels.used > 0)
1508             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1509         return;
1510     }
1511
1512     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1513 }
1514
1515 static CMD_FUNC(cmd_create)
1516 {
1517     struct create_desc cd;
1518     struct userNode *user;
1519
1520     if ((argc < 3) || !(user = GetUserH(origin)))
1521         return 0;
1522     cd.user = user;
1523     cd.when = atoi(argv[2]);
1524     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1525     return 1;
1526 }
1527
1528 static CMD_FUNC(cmd_join)
1529 {
1530     struct create_desc cd;
1531
1532     if (!(cd.user = GetUserH(origin)))
1533         return 0;
1534     if (argc < 2)
1535         return 0;
1536     else if (argc < 3)
1537         cd.when = now;
1538     else
1539         cd.when = atoi(argv[2]);
1540     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1541     return 1;
1542 }
1543
1544 static CMD_FUNC(cmd_svsjoin)
1545 {
1546     struct create_desc cd;
1547
1548     if (!(cd.user = GetUserH(argv[1])))
1549         return 0;
1550     if (argc < 3)
1551         return 0;
1552     else if (argc < 4)
1553         cd.when = now;
1554     else
1555         cd.when = atoi(argv[3]);
1556     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1557     return 1;
1558 }
1559
1560 static CMD_FUNC(cmd_pong)
1561 {
1562     if (argc < 3)
1563         return 0;
1564     if (!strcmp(argv[2], self->name)) {
1565         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1566         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1567         timeq_add(now + ping_freq, timed_send_ping, 0);
1568         received_ping();
1569     }
1570     return 1;
1571 }
1572
1573 static CMD_FUNC(cmd_nick)
1574 {
1575     struct userNode *user;
1576     if ((user = GetUserH(origin))) {
1577         /* nick change (since the source is a user numeric) */
1578         if (argc < 2)
1579             return 0;
1580         NickChange(user, argv[1], 1);
1581     } else {
1582         struct server *serv;
1583         struct userNode *nuser;
1584         char modes[MAXLEN];
1585         /* new nick */
1586         if (argc < 9)
1587             return 0;
1588         serv = GetServerH(origin);
1589         if (argc > 9)
1590             unsplit_string(argv+6, argc-9, modes);
1591         else
1592             strcpy(modes, "+");
1593         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1594     }
1595     return 1;
1596 }
1597
1598 static CMD_FUNC(cmd_account)
1599 {
1600     struct userNode *user;
1601     struct server *server;
1602     struct handle_info *hi;
1603
1604     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1605         return 0; /* Origin must be server. */
1606
1607     /* This next line appears to tremple origin.. why? */
1608     user = GetUserN(argv[1]);
1609     if (!user)
1610         return 1; /* A QUIT probably passed the ACCOUNT. */
1611
1612     if(!extended_accounts) /* any need for this function without? */
1613         return 1;
1614
1615     if(!strcmp(argv[2],"C"))
1616     {
1617         if((hi = loc_auth(argv[4], argv[5], NULL)))
1618         {
1619             /* Return a AC A */
1620             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1621
1622                         log_module(MAIN_LOG, LOG_DEBUG, "loc_auth: %s\n", user->nick);
1623          }
1624         else
1625         {
1626             /* Return a AC D */
1627             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1628         }
1629         return 1;
1630     }
1631     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1632     {
1633         if((hi = loc_auth(argv[5], argv[6], argv[4] )))
1634         {
1635             /* Return a AC A */
1636             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1637         }
1638         else
1639         {
1640             /* Return a AC D */
1641             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1642         }
1643         return 1;
1644     }
1645     else if(!strcmp(argv[2],"R"))
1646        call_account_func(user, argv[3]);
1647     else
1648         call_account_func(user, argv[2]); /* For backward compatability */
1649     return 1;
1650 }
1651
1652 static CMD_FUNC(cmd_fakehost)
1653 {
1654     struct userNode *user;
1655
1656     if ((argc < 3) || !origin || !GetServerH(origin))
1657         return 0;
1658     if (!(user = GetUserN(argv[1])))
1659         return 1;
1660     assign_fakehost(user, argv[2], 0);
1661     return 1;
1662 }
1663
1664 static struct {
1665   char        *name;
1666   unsigned int priv;
1667 } privtab[] = {
1668 #define P(priv)         { #priv, PRIV_ ## priv }
1669   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1670   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1671   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1672   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1673   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1674   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1675   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1676   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1677   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1678   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1679   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS),
1680 #undef P
1681   { 0, 0 }
1682 };
1683
1684 char *client_report_privs(struct userNode *client)
1685 {
1686   int i;
1687
1688   privbuf[0] = '\0';
1689   for (i = 0; privtab[i].name; i++) {
1690     if (HasPriv(client, privtab[i].priv)) {
1691       strcat(privbuf, privtab[i].name);
1692       strcat(privbuf, " ");
1693     }
1694   }
1695
1696   privbuf[strlen(privbuf)] = 0;
1697
1698   return privbuf;
1699 }
1700
1701 int clear_privs(struct userNode *who) {
1702   int i = 0;
1703   assert(0 != who);
1704
1705   for (i = 0; privtab[i].name; i++)
1706     RevokePriv(who, privtab[i].priv);
1707
1708   return 0;
1709 }
1710
1711 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1712  int i = 0;
1713  assert(0 != priv);
1714  assert(0 != who);
1715
1716   for (i = 0; privtab[i].name; i++) {
1717     if (0 == strcmp(privtab[i].name, priv)) {
1718       if (what == PRIV_ADD)
1719         GrantPriv(who, privtab[i].priv);
1720       else if (what == PRIV_DEL) {
1721         RevokePriv(who, privtab[i].priv);
1722       }
1723     }
1724   }
1725   return 0;
1726 }
1727
1728 int check_priv(char *priv)
1729 {
1730   int i;
1731
1732   for (i = 0; privtab[i].name; i++) {
1733     if (0 == strcmp(privtab[i].name, priv)) {
1734       return 1;
1735     }
1736   }
1737   return 0;
1738 }
1739
1740 void
1741 irc_privs(struct userNode *target, char *flag, int add)
1742 {
1743     client_modify_priv_by_name(target, flag, add);
1744     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1745 }
1746
1747 static CMD_FUNC(cmd_privs)
1748 {
1749     char *tstr = NULL;
1750     char buf[512] = "";
1751     char *p = 0;
1752     char *tmp;
1753
1754     int what = PRIV_ADD;
1755     int type = 0;
1756
1757     unsigned int i;
1758
1759     struct server *sender;
1760     struct userNode *user;
1761
1762
1763     tstr = conf_get_data("server/type", RECDB_QSTRING);
1764     if(tstr)
1765         type = atoi(tstr);
1766
1767
1768     if (!(sender = GetServerH(origin))) { /* from oper */
1769         return 1; /* ignore as no services have privs set */
1770     } else { /* from server */
1771         if (type < 5)
1772             return 1; /* silently ignore */
1773
1774         user = argc > 1 ? GetUserN(argv[1]) : NULL;
1775
1776         if (!user)
1777             return 0;
1778
1779         for (i=1; i<argc; i++) {
1780             strcat(buf, argv[i]);
1781             strcat(buf, " ");
1782         }
1783
1784         for (i = 2; i < argc; i++) {
1785             if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1786             if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1787             for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1788                  tmp = x3_strtok(&p, NULL, ",")) {
1789                 if (!strcmp(tmp, "PRIV_NONE")) {
1790                     clear_privs(user);
1791                     break;
1792                 } else
1793                     client_modify_priv_by_name(user, tmp, what);
1794             }
1795         }
1796     }
1797     return 1;
1798 }
1799
1800 static CMD_FUNC(cmd_burst)
1801 {
1802     extern int rel_age;
1803     char modes[MAXLEN], *members = "";
1804     static char exemptlist[MAXLEN], banlist[MAXLEN];
1805     unsigned int next = 3, res = 1;
1806     int ctype = 0, echeck = 0, bcheck = 0;
1807     struct chanData *cData;
1808     struct chanNode *cNode;
1809     struct userNode *un;
1810     struct modeNode *mNode;
1811     long mode;
1812     int oplevel = -1;
1813     char *user, *end, sep;
1814     time_t in_timestamp;
1815     char* parm = NULL;
1816
1817     if (argc < 3)
1818         return 0;
1819     modes[0] = 0;
1820
1821     exemptlist[0] = 0;
1822     banlist[0] = 0;
1823
1824     while (next < argc) {
1825         switch (argv[next][0]) {
1826         case '+': {
1827             const char *pos;
1828             int n_modes;
1829             for (pos=argv[next], n_modes = 1; *pos; pos++)
1830                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1831                     || (*pos == 'U'))
1832                     n_modes++;
1833             if (next + n_modes > argc)
1834                 n_modes = argc - next;
1835             unsplit_string(argv+next, n_modes, modes);
1836             next += n_modes;
1837             break;
1838         }
1839         case '%': {
1840             for(parm = mysep(&argv[next], " "); /* parm = first param */
1841                   parm;   /* While param is not null */
1842                   parm = mysep(&argv[next], " ")  /* parm = next param */
1843                )
1844             {
1845               switch (parm[0]) {
1846                 case '%': {
1847                   ctype = 1;
1848                   break;
1849                 }
1850                 case '~': {
1851                   ctype = 2;
1852                   break;
1853                 }
1854                 default: {
1855                   break;
1856                 }
1857               }
1858               if (ctype == 1) {
1859                 if (bcheck == 0) {
1860                   /* strip % char off start of very first ban */
1861                   if (strlen(parm) > 1) {
1862                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1863                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1864                   }
1865                   bcheck = 1;
1866                 } else {
1867                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1868                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1869                 }
1870               } else if (ctype == 2) {
1871                 if (echeck == 0) {
1872                    echeck = 1;
1873                 } else {
1874                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1875                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1876                 }
1877               }
1878             }
1879             next++;
1880             break;
1881         }
1882         default: members = argv[next++]; break;
1883       }
1884     }
1885
1886     in_timestamp = atoi(argv[2]);
1887     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1888         cNode->timestamp = in_timestamp;
1889         dict_remove(unbursted_channels, cNode->name);
1890         irc_burst(cNode);
1891     }
1892     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1893     cData = cNode->channel_info;
1894
1895     if (!cData) {
1896         if (cNode->modes & MODE_REGISTERED) {
1897             irc_join(opserv, cNode);
1898             irc_mode(opserv, cNode, "-z");
1899             irc_part(opserv, cNode, "");
1900         }
1901     }
1902
1903     /* Burst channel members in now. */
1904     for (user = members, sep = *members, mode = 0; sep; user = end) {
1905         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1906         sep = *end++; end[-1] = 0;
1907         if (sep == ':') {
1908             mode = 0;
1909             while ((sep = *end++)) {
1910                 if (sep == 'o') {
1911                     mode |= MODE_CHANOP;
1912                     oplevel = -1;
1913                 } else if (sep == 'h') {
1914                     mode |= MODE_HALFOP;
1915                     oplevel = -1;
1916                 } else if (sep == 'v') {
1917                     mode |= MODE_VOICE;
1918                     oplevel = -1;
1919                 } else if (isdigit(sep)) {
1920                     mode |= MODE_CHANOP;
1921                     if (oplevel >= 0)
1922                         oplevel += parse_oplevel(end);
1923                     else
1924                         oplevel = parse_oplevel(end);
1925                     while (isdigit(*end)) end++;
1926                 } else
1927                     break;
1928             }
1929             if (rel_age < 0)
1930                 mode = 0;
1931         }
1932         if (!(un = GetUserN(user))) {
1933             res = 0;
1934             continue;
1935         }
1936         if ((mNode = AddChannelUser(un, cNode))) {
1937             mNode->modes = mode;
1938             mNode->oplevel = oplevel;
1939         }
1940     }
1941
1942     return res;
1943 }
1944
1945 /* TODO:
1946  * This is a stub that doesn't actually do anything. It should be completed
1947  * so that bans on *!*@markname.* match users as it does in nefarious
1948  */
1949 static CMD_FUNC(cmd_mark)
1950 {
1951     struct userNode *target;
1952     /*
1953      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1954      */
1955
1956     if(argc < 4)
1957         return 0;
1958     if(!strcasecmp(argv[2], "DNSBL")) {
1959         /* DNSBL <modes> */
1960         return 1;
1961     }
1962     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1963         /* DNSBL_DATA name */
1964         target = GetUserH(argv[1]);
1965         if(!target) {
1966             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1967             return 0;
1968         }
1969         target->mark = strdup(argv[3]);
1970         return 1;
1971
1972     }
1973     else if(!strcasecmp(argv[2], "CVERSION")) {
1974         /* DNSBL_DATA name */
1975         target = GetUserH(argv[1]);
1976         if(!target) {
1977             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1978             return 0;
1979         }
1980
1981         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1982         if(!version)
1983             version = "";
1984
1985         target->version_reply = strdup(version);
1986
1987         if(match_ircglob(version, "WebTV;*"))
1988             target->no_notice = true; /* webbies cant see notices */
1989
1990         return 1;
1991     }
1992     /* unknown type of mark */
1993     return 1;
1994 }
1995
1996 static CMD_FUNC(cmd_mode)
1997 {
1998     struct chanNode *cn;
1999     struct userNode *un;
2000     char *sethost; // sethost - reed/apples
2001     int i; // sethost - reed/apples
2002
2003     if (argc < 3)
2004         return 0;
2005     if (!IsChannelName(argv[1])) {
2006         un = GetUserH(argv[1]);
2007         if (!un) {
2008             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
2009             return 0;
2010         }
2011         // sethost - reed/apples
2012         if (argc == 3)
2013         mod_usermode(un, argv[2]);
2014         else {
2015           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
2016           i = 0;
2017           while((sethost[i++] = *argv[2]++));
2018           i--;
2019          sethost[i++] = ' ';
2020           while((sethost[i++] = *argv[3]++));
2021           mod_usermode(un, sethost); // sethost - reed/apples
2022         }
2023
2024         return 1;
2025     }
2026
2027     if (!(cn = GetChannel(argv[1]))) {
2028         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2029         return 0;
2030     }
2031     if ((un = GetUserH(origin))) {
2032         struct modeNode *mn;
2033         /* Update idle time for person setting the mode */
2034         if ((mn = GetUserMode(cn, un)))
2035             mn->idle_since = now;
2036     } else {
2037         /* If it came from a server, reset timestamp to re-sync. */
2038         cn->timestamp = atoi(argv[argc-1]);
2039     }
2040
2041     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
2042         const char *str;
2043         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2044         if (str) {
2045             char modes[MODELEN];
2046             struct userNode *opserv = GetUserH(str);
2047
2048             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
2049             irc_make_chanmode(cn, modes);
2050             irc_mode(opserv, cn, modes);
2051             irc_mode(opserv, cn, DefConChanModes);
2052         }
2053         return 1;
2054     }
2055
2056
2057     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
2058 }
2059
2060 static CMD_FUNC(cmd_opmode)
2061 {
2062     struct chanNode *cn;
2063     struct userNode *un;
2064
2065     if (argc < 3)
2066         return 0;
2067
2068     if (!(cn = GetChannel(argv[1]))) {
2069         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2070         return 0;
2071     }
2072     if (!(un = GetUserH(origin))) {
2073         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
2074         return 0;
2075     }
2076     if (!IsOper(un)) {
2077         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
2078         return 0;
2079     }
2080
2081     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
2082 }
2083
2084 static int clear_chanmode(struct chanNode *channel, const char *modes);
2085
2086 static CMD_FUNC(cmd_clearmode)
2087 {
2088     struct chanNode *cn;
2089     struct userNode *un;
2090
2091     if (argc < 3)
2092         return 0;
2093
2094     if (!(cn = GetChannel(argv[1]))) {
2095         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2096         return 0;
2097     }
2098     if (!(un = GetUserH(origin))) {
2099         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
2100         return 0;
2101     }
2102     if (!IsOper(un)) {
2103         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
2104         return 0;
2105     }
2106
2107     return clear_chanmode(cn, argv[2]);
2108 }
2109
2110 static CMD_FUNC(cmd_topic)
2111 {
2112     struct chanNode *cn;
2113     time_t chan_ts, topic_ts;
2114     struct userNode *user;
2115
2116     if (argc < 3)
2117         return 0;
2118     if (!(cn = GetChannel(argv[1]))) {
2119         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
2120         return 0;
2121     }
2122
2123
2124     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
2125         user = GetUserH(origin);
2126         chan_ts = atoi(argv[2]);
2127         topic_ts = atoi(argv[3]);
2128     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2129         user = GetUserH(strtok(argv[2], "!"));
2130         chan_ts = atoi(argv[3]);
2131         topic_ts = atoi(argv[4]);
2132     } else {                      /* Regular IRCu (No Topic Bursting)*/
2133         user = GetUserH(origin);
2134         chan_ts = cn->timestamp;
2135         topic_ts = now;
2136     }
2137
2138     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2139     cn->topic_time = topic_ts;
2140     return 1;
2141 }
2142
2143 static CMD_FUNC(cmd_num_topic)
2144 {
2145     struct chanNode *cn;
2146
2147     if (!argv[0])
2148         return 0; /* huh? */
2149     if (argv[2]) {
2150         cn = GetChannel(argv[2]);
2151         if (!cn) {
2152             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2153             return 0;
2154         }
2155     } else
2156         return 0;
2157
2158     switch (atoi(argv[0])) {
2159     case 331:
2160         cn->topic_time = 0;
2161         break;  /* no topic */
2162     case 332:
2163         if (argc < 4)
2164             return 0;
2165         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2166         break;
2167     case 333:
2168         if (argc < 5)
2169             return 0;
2170         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2171         cn->topic_time = atoi(argv[4]);
2172         break;
2173     default:
2174         return 0; /* should never happen */
2175     }
2176     return 1;
2177 }
2178
2179 static CMD_FUNC(cmd_num_gline)
2180 {
2181     time_t lastmod;
2182     if (argc < 7) {
2183         if (argc < 6)
2184             return 0;
2185         else {
2186             lastmod = (argc > 5) ? strtoul(argv[5], NULL, 0) : 0;
2187             gline_add(origin, argv[3], atoi(argv[4])-now, argv[argc - 1], now, lastmod, 0, 0);
2188         }
2189     } else {
2190         if (!strcmp(argv[5], "+")) {
2191           lastmod = (argc > 6) ? strtoul(argv[5], NULL, 0) : 0;
2192           gline_add(origin, argv[3], atoi(argv[4])-now, argv[argc - 1], now, now, 0, 0);
2193         }
2194     }
2195     return 1;
2196 }
2197
2198 static CMD_FUNC(cmd_num_shun)
2199 {
2200     time_t lastmod;
2201
2202     if (argc < 7) {
2203         if (argc < 6)
2204             return 0;
2205         else
2206             lastmod = (argc > 5) ? strtoul(argv[5], NULL, 0) : 0;
2207             shun_add(origin, argv[3], atoi(argv[4])-now, argv[argc - 1], now, now, 0);
2208     } else {
2209         if (!strcmp(argv[5], "+"))
2210             lastmod = (argc > 6) ? strtoul(argv[5], NULL, 0) : 0;
2211             shun_add(origin, argv[3], atoi(argv[4])-now, argv[argc - 1], now, now, 0);
2212     }
2213     return 1;
2214 }
2215
2216 static CMD_FUNC(cmd_quit)
2217 {
2218     struct userNode *user;
2219     if (argc < 2)
2220         return 0;
2221     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2222      * call DelUser unless we have the user in our grasp. */
2223     if ((user = GetUserH(origin)))
2224         DelUser(user, NULL, false, argv[1]);
2225     return 1;
2226 }
2227
2228 static CMD_FUNC(cmd_kill)
2229 {
2230     struct userNode *user;
2231     if (argc < 2)
2232         return 0;
2233     user = GetUserN(argv[1]);
2234     if (!user) {
2235         /* If we get a KILL for a non-existent user, it could be a
2236          * Ghost response to a KILL we sent out earlier.  So we only
2237          * whine if the target is local.
2238          */
2239         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2240             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2241         return 0;
2242     }
2243
2244     if (IsLocal(user) && IsService(user)) {
2245         /* TODO: rate limit this so silly things don't happen. */
2246         ReintroduceUser(user);
2247         return 1;
2248     }
2249
2250     DelUser(user, NULL, false, argv[2]);
2251     return 1;
2252 }
2253
2254 static CMD_FUNC(cmd_svspart)
2255 {
2256     struct userNode *user;
2257
2258     if (argc < 3)
2259         return 0;
2260     user = GetUserN(argv[1]);
2261     if (!user)
2262         return 0;
2263     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2264     return 1;
2265 }
2266
2267 static CMD_FUNC(cmd_silence)
2268 {
2269     struct userNode *user;
2270     char *mask;
2271     char *new_mask;
2272     unsigned int i;
2273
2274     if (argc < 2)
2275         return 0;
2276
2277     user = GetUserN(argv[1]);
2278
2279     /* Sanity, go nuts if this happens */
2280     if (!user)
2281         return 0;
2282
2283     /*  We can safely ignore this if a user adding a silence is not
2284      *  ignored. However this brings up a TODO. If a user logs in and
2285      *  they have silences on the IRCd then we need to set them here
2286      *  somehow
2287      */
2288     if (!user->handle_info)
2289         return 1;
2290
2291     mask = argv[2];
2292
2293     if (*mask == '-') {
2294         for (i=0; i<user->handle_info->ignores->used; i++) {
2295             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2296                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2297         }
2298     } else {
2299         for (i=0; i<user->handle_info->ignores->used; i++) {
2300             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2301                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2302         }
2303
2304         new_mask = strdup(mask+1);
2305         string_list_append(user->handle_info->ignores, new_mask);
2306     }
2307     return 1;
2308 }
2309
2310 static CMD_FUNC(cmd_kick)
2311 {
2312     if (argc < 3)
2313         return 0;
2314     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2315     return 1;
2316 }
2317
2318 static CMD_FUNC(cmd_squit)
2319 {
2320     struct server *server;
2321     char *uplink;
2322
2323     if (argc < 4)
2324         return 0;
2325     if (!(server = GetServerH(argv[1])))
2326         return 0;
2327
2328     if (server == self->uplink) {
2329         /* Force a reconnect to the currently selected server. */
2330         cManager.uplink->tries = 0;
2331         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2332         close_socket();
2333         return 1;
2334     }
2335
2336     uplink = strdup(server->uplink->name);
2337     DelServer(server, 0, argv[3]);
2338     /* if its a pingout and pingout connecting is enabled
2339                or its a read error and readerror connecting is enabled
2340                or were doing a "N" and i need to connect that server somewhere */
2341     routing_handle_squit(argv[1], uplink, argv[3]);
2342     free(uplink);
2343     return 1;
2344 }
2345
2346 static CMD_FUNC(cmd_privmsg)
2347 {
2348     struct privmsg_desc pd;
2349     if (argc < 3)
2350         return 0;
2351     pd.user = GetUserH(origin);
2352     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2353         return 1;
2354
2355     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2356         const char *str;
2357         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2358         if (str)
2359             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2360         return 1;
2361     }
2362
2363     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2364         return 1; /* Silently Ignore */
2365
2366     pd.is_notice = 0;
2367     pd.text = argv[argc - 1];
2368     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2369
2370     return 1;
2371 }
2372
2373 static CMD_FUNC(cmd_notice)
2374 {
2375     struct privmsg_desc pd;
2376     struct server *srv;
2377     int nuser = 0;
2378
2379     if (argc != 3)
2380         return 0;
2381
2382     pd.user = GetUserH(origin);
2383     if(!pd.user)
2384         nuser = 1;
2385     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2386     }
2387     else {
2388         pd.is_notice = 1;
2389         pd.text = argv[2];
2390         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2391     }
2392
2393     srv = GetServerH(origin);
2394     if(srv) {
2395         char *sargv[MAXNUMPARAMS];
2396         int sargc;
2397
2398         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2399
2400         if(!strcasecmp(sargv[0], "Connect:")) {
2401             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2402             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2403                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2404             }
2405         }
2406         else if(!strcasecmp(sargv[0], "Link")) {
2407             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2408              *
2409              * :Link with laptop.afternet.org cancelled: Connection refused
2410              */
2411             if(!strcasecmp(sargv[3], "cancelled:")) {
2412                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2413             }
2414         }
2415     }
2416     return 1;
2417 }
2418
2419 static CMD_FUNC(cmd_away)
2420 {
2421     struct userNode *uNode;
2422
2423     uNode = GetUserH(origin);
2424     if (!uNode)
2425         return 1;
2426     if (argc < 2)
2427         uNode->modes &= ~FLAGS_AWAY;
2428     else
2429         uNode->modes |= FLAGS_AWAY;
2430     return 1;
2431 }
2432
2433 static CMD_FUNC(cmd_gline)
2434 {
2435     time_t lastmod;
2436
2437     if (argc < 3)
2438         return 0;
2439     if (argv[2][0] == '+') {
2440         if (argc < 5)
2441             return 0;
2442         lastmod = (argc > 5) ? strtoul(argv[5], NULL, 0) : 0;
2443         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, lastmod, 0, 0);
2444         return 1;
2445     } else if (argv[2][0] == '-') {
2446         gline_remove(argv[2]+1, 0);
2447         return 1;
2448     } else
2449         return 0;
2450 }
2451
2452 static CMD_FUNC(cmd_sgline)
2453 {
2454     struct server *sender;
2455
2456     if (argc < 4)
2457         return 0;
2458
2459     if (!(sender = GetServerH(origin)))
2460         return 0;
2461
2462     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, now, 1, 0);
2463     return 1;
2464 }
2465
2466 static CMD_FUNC(cmd_sshun)
2467 {
2468     struct server *sender;
2469
2470     if (argc < 4)
2471         return 0;
2472
2473     if (!(sender = GetServerH(origin)))
2474         return 0;
2475
2476     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, now, 1);
2477     return 1;
2478 }
2479
2480 static CMD_FUNC(cmd_shun)
2481 {
2482     time_t lastmod;
2483
2484     if (argc < 3)
2485         return 0;
2486     if (argv[2][0] == '+') {
2487         if (argc < 5)
2488             return 0;
2489         lastmod = (argc > 5) ? strtoul(argv[5], NULL, 0) : 0;
2490         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, now, 0);
2491         return 1;
2492     } else if (argv[2][0] == '-') {
2493         shun_remove(argv[2]+1, 0);
2494         return 1;
2495     } else
2496         return 0;
2497 }
2498
2499 static CMD_FUNC(cmd_svsnick)
2500 {
2501     struct userNode *target, *dest;
2502     if ((argc < 4)
2503         || !(target = GetUserN(argv[1]))
2504         || !IsLocal(target)
2505         || (dest = GetUserH(argv[2])))
2506         return 0;
2507     NickChange(target, argv[2], 0);
2508     return 1;
2509 }
2510
2511 void
2512 free_user(struct userNode *user)
2513 {
2514     free(user->nick);
2515     free(user);
2516 }
2517
2518 static void
2519 parse_cleanup(void)
2520 {
2521     unsigned int nn;
2522     free(of_list);
2523     free(privmsg_funcs);
2524     num_privmsg_funcs = 0;
2525     free(notice_funcs);
2526     num_notice_funcs = 0;
2527     free(mcf_list);
2528     dict_delete(irc_func_dict);
2529     for (nn=0; nn<dead_users.used; nn++)
2530         free_user(dead_users.list[nn]);
2531     userList_clean(&dead_users);
2532 }
2533
2534 static void
2535 p10_conf_reload(void) {
2536     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2537     his_servername = conf_get_data("server/his_servername", RECDB_QSTRING);
2538     his_servercomment = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2539 }
2540
2541 static void
2542 remove_unbursted_channel(struct chanNode *cNode) {
2543     if (unbursted_channels)
2544         dict_remove(unbursted_channels, cNode->name);
2545 }
2546
2547 void
2548 init_parse(void)
2549 {
2550     const char *str, *desc;
2551     int numnick, usermask, max_users;
2552     char numer[COMBO_NUMERIC_LEN+1];
2553
2554     /* read config items */
2555     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2556     extended_accounts = str ? enabled_string(str) : 1;
2557     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2558     ping_freq = str ? ParseInterval(str) : 120;
2559     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2560     ping_timeout = str ? ParseInterval(str) : 30;
2561     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2562     force_n2k = str ? enabled_string(str) : 1;
2563     str = conf_get_data("server/numeric", RECDB_QSTRING);
2564     if (!str) {
2565         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2566         exit(1);
2567     }
2568     numnick = atoi(str);
2569     str = conf_get_data("server/max_users", RECDB_QSTRING);
2570     max_users = str ? atoi(str) : 4096;
2571     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2572     usermask--;
2573     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2574         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2575     else
2576         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2577
2578     str = conf_get_data("server/hostname", RECDB_QSTRING);
2579     desc = conf_get_data("server/description", RECDB_QSTRING);
2580     if (!str || !desc) {
2581         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2582         exit(1);
2583     }
2584     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2585     conf_register_reload(p10_conf_reload);
2586
2587     irc_func_dict = dict_new();
2588     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2589     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2590     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2591     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2592     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2593     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2594     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2595     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2596     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2597     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2598     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2599     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2600     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2601     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2602     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2603     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2604     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2605     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2606     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2607     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2608     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2609     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2610     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2611     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2612     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2613     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2614     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2615     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2616     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2617     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2618     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2619     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2620     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2621     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2622     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2623     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2624     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2625     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2626     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2627     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2628     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2629     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2630     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2631     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2632     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2633     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2634     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2635     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2636     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2637     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2638     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2639     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2640     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2641     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2642     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2643     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2644     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2645     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2646     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2647     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2648     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2649     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2650     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2651     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2652     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2653     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2654     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2655     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2656     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2657     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2658     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2659     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2660     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2661     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2662     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2663     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2664     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2665     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2666     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2667     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2668     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2669     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2670
2671     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2672     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2673     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2674     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2675
2676     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2677      * Apparently to obliterate channels from any servers that think they
2678      * exist?
2679      */
2680     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2681     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2682     /* Ignore invites */
2683     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2684     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2685     /* DESYNCH is just informational, so ignore it */
2686     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2687     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2688     /* Ignore channel operator notices. */
2689     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2690     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2691     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2692     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2693     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2694     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2695     /* Ignore opers being silly. */
2696     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2697     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2698     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2699     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2700     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2701     /* Ignore dnsbl exemptions */
2702     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2703     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2704     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2705     /* ignore ALIST for now */
2706     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2707     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2708     /* Ignore remote luser */
2709     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2710     /* We have reliable clock!  Always!  Wraaa! */
2711     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2712     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2713
2714     /* ignore /trace and /motd commands targetted at us */
2715     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2716     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2717     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2718
2719     /* handle topics */
2720     dict_insert(irc_func_dict, "331", cmd_num_topic);
2721     dict_insert(irc_func_dict, "332", cmd_num_topic);
2722     dict_insert(irc_func_dict, "333", cmd_num_topic);
2723     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2724     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2725     /* ban list resetting */
2726     /* "stats g" responses */
2727     dict_insert(irc_func_dict, "230", cmd_dummy); /* ignore stats headers */
2728     dict_insert(irc_func_dict, "247", cmd_num_gline);
2729     dict_insert(irc_func_dict, "542", cmd_num_shun);
2730     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2731     /* other numeric responses we might get */
2732     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2733     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2734     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2735     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2736     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2737     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2738     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2739     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2740     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2741
2742     num_privmsg_funcs = 16;
2743     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2744     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2745
2746     num_notice_funcs = 16;
2747     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2748     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2749
2750     userList_init(&dead_users);
2751     reg_del_channel_func(remove_unbursted_channel);
2752     reg_exit_func(parse_cleanup);
2753     // reg_notice_func(opserv, check_ctcp);
2754 }
2755
2756 int
2757 parse_line(char *line, int recursive)
2758 {
2759     char *argv[MAXNUMPARAMS], *origin;
2760     int argc, cmd, res=0;
2761     cmd_func_t *func;
2762
2763     argc = split_line(line, true, MAXNUMPARAMS, argv);
2764     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2765     if (argc > cmd) {
2766         if (cmd) {
2767             if (argv[0][0] == ':') {
2768                 origin = argv[0]+1;
2769             } else if (!argv[0][1] || !argv[0][2]) {
2770                 struct server *sNode = GetServerN(argv[0]);
2771                 origin = sNode ? sNode->name : 0;
2772             } else {
2773                 struct userNode *uNode = GetUserN(argv[0]);
2774                 origin = uNode ? uNode->nick : 0;
2775             }
2776         } else
2777             origin = 0;
2778         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2779             res = func(origin, argc-cmd, argv+cmd);
2780     }
2781     if (!res) {
2782         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2783     } else if (!recursive) {
2784         unsigned int i;
2785         for (i=0; i<dead_users.used; i++)
2786             free_user(dead_users.list[i]);
2787         dead_users.used = 0;
2788     }
2789     return res;
2790 }
2791
2792 static void
2793 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2794 {
2795     char *j, old;
2796
2797     do {
2798         j = target_list;
2799         while (*j != 0 && *j != ',')
2800             j++;
2801         old = *j;
2802         *j = 0;
2803
2804         if (IsChannelName(target_list)
2805             || (target_list[0] == '0' && target_list[1] == '\0')) {
2806             struct chanNode *chan = GetChannel(target_list);
2807
2808             if (chan) {
2809                 if (cf)
2810                     cf(chan, data);
2811             } else {
2812                 if (nc)
2813                     nc(target_list, data);
2814             }
2815         } else {
2816             struct userNode *user;
2817             struct privmsg_desc *pd = data;
2818
2819             pd->is_qualified = 0;
2820             if (*target_list == '@') {
2821                 user = NULL;
2822             } else if (strchr(target_list, '@')) {
2823                 struct server *server;
2824
2825                 pd->is_qualified = 1;
2826                 user = GetUserH(strtok(target_list, "@"));
2827                 server = GetServerH(strtok(NULL, "@"));
2828
2829                 if (user && (user->uplink != server)) {
2830                     /* Don't attempt to index into any arrays
2831                        using a user's numeric on another server. */
2832                     user = NULL;
2833                 }
2834             } else {
2835                 user = GetUserN(target_list);
2836             }
2837
2838             if (user) {
2839                 if (uf)
2840                     uf(user, data);
2841             } else {
2842                 if (nu)
2843                     nu(target_list, data);
2844             }
2845         }
2846         target_list = j+1;
2847     } while (old == ',');
2848 }
2849
2850 static int
2851 get_local_numeric(void)
2852 {
2853     static unsigned int next_numeric = 0;
2854     if (self->clients > self->num_mask)
2855         return -1;
2856     while (self->users[next_numeric])
2857         if (++next_numeric > self->num_mask)
2858             next_numeric = 0;
2859     return next_numeric;
2860 }
2861
2862 static void
2863 make_numeric(struct server *svr, int local_num, char *outbuf)
2864 {
2865     int slen, llen;
2866
2867     if (force_n2k || svr->numeric[1]) {
2868         slen = 2;
2869         llen = 3;
2870     } else {
2871         slen = 1;
2872         llen = (local_num < 64*64) ? 2 : 3;
2873     }
2874     strncpy(outbuf, svr->numeric, slen);
2875     inttobase64(outbuf+slen, local_num, llen);
2876     outbuf[slen+llen] = 0;
2877 }
2878
2879 struct server *
2880 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link_time, const char *numeric, const char *description)
2881 {
2882     struct server* sNode;
2883     int slen, mlen;
2884
2885     if ((sNode = GetServerN(numeric))) {
2886         /* This means we're trying to re-add an existant server.
2887          * To be safe, we should forget the previous incarnation.
2888          * (And all its linked servers.)
2889          *
2890          * It usually only happens in replays when the original
2891          * had a ping timeout and the replay didn't (because
2892          * replaying a ping timeout invariably gets things wrong).
2893          */
2894         DelServer(sNode, 0, NULL);
2895     }
2896
2897     switch (strlen(numeric)) {
2898     case 5: slen = 2; mlen = 3; break;
2899     case 4: slen = 1; mlen = 3; break;
2900     case 3: slen = 1; mlen = 2; break;
2901     default:
2902         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2903         return NULL;
2904     }
2905
2906     sNode = calloc(1, sizeof(*sNode));
2907     sNode->uplink = uplink;
2908     safestrncpy(sNode->name, name, sizeof(sNode->name));
2909     sNode->num_mask = base64toint(numeric+slen, mlen);
2910     sNode->hops = hops;
2911     sNode->boot = boot;
2912     sNode->link_time = link_time;
2913     strncpy(sNode->numeric, numeric, slen);
2914     safestrncpy(sNode->description, description, sizeof(sNode->description));
2915     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2916     serverList_init(&sNode->children);
2917     if (sNode->uplink) {
2918         /* uplink may be NULL if we're just building ourself */
2919         serverList_append(&sNode->uplink->children, sNode);
2920     }
2921     servers_num[base64toint(numeric, slen)] = sNode;
2922     dict_insert(servers, sNode->name, sNode);
2923     return sNode;
2924 }
2925
2926 void DelServer(struct server* serv, int announce, const char *message)
2927 {
2928     unsigned int i;
2929
2930     /* If we receive an ERROR command before the SERVER
2931      * command a NULL server can be passed */
2932     if (!serv)
2933         return;
2934
2935     /* Hrm, what's the right way to SQUIT some other server?
2936      * (This code is only to handle killing juped servers.) */
2937     if (announce && (serv->uplink == self) && (serv != self->uplink))
2938         irc_squit(serv, message, NULL);
2939
2940     /* must recursively remove servers linked to this one first */
2941     for (i=serv->children.used;i>0;)
2942         if (serv->children.list[--i] != self)
2943             DelServer(serv->children.list[i], false, NULL);
2944
2945     /* clean up server's user hash tables */
2946     for (i=0;i<=serv->num_mask;i++)
2947         if (serv->users[i])
2948             DelUser(serv->users[i], NULL, false, "server delinked");
2949
2950     /* delete server */
2951     if (serv->uplink)
2952         serverList_remove(&serv->uplink->children, serv);
2953     if (serv == self->uplink)
2954         self->uplink = NULL;
2955     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2956     dict_remove(servers, serv->name);
2957     serverList_clean(&serv->children);
2958     free(serv->users);
2959     free(serv);
2960 }
2961
2962 struct userNode *
2963 AddLocalUser(const char *nick, const char *ident, const char *hostname, const char *desc, const char *modes)
2964 {
2965     char numeric[COMBO_NUMERIC_LEN+1];
2966     int local_num = get_local_numeric();
2967     time_t timestamp = now;
2968     struct userNode *old_user = GetUserH(nick);
2969
2970     if (!modes)
2971         modes = "+oik";
2972
2973     if (old_user) {
2974         if (IsLocal(old_user))
2975             return old_user;
2976         timestamp = old_user->timestamp - 1;
2977     }
2978     if (local_num == -1) {
2979         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2980         return 0;
2981     }
2982     if (!hostname)
2983         hostname = self->name;
2984     make_numeric(self, local_num, numeric);
2985     return AddUser(self, nick, ident, hostname, modes, numeric, desc, now, "AAAAAA");
2986 }
2987
2988 struct userNode *
2989 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2990 {
2991     char numeric[COMBO_NUMERIC_LEN+1];
2992     int local_num = get_local_numeric();
2993     time_t timestamp = now;
2994     struct userNode *old_user = GetUserH(nick);
2995
2996     if (old_user) {
2997         if (IsLocal(old_user))
2998             return old_user;
2999         timestamp = old_user->timestamp - 1;
3000     }
3001     if (local_num == -1) {
3002         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
3003         return 0;
3004     }
3005     make_numeric(self, local_num, numeric);
3006     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
3007 }
3008
3009 int
3010 is_valid_nick(const char *nick) {
3011     unsigned int ii;
3012     /* IRC has some of The Most Fucked-Up ideas about character sets
3013      * in the world.. */
3014     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
3015         return 0;
3016     for (ii = 0; nick[ii]; ++ii)
3017         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
3018             return 0;
3019     if (strlen(nick) > nicklen)
3020         return 0;
3021     return 1;
3022 }
3023
3024 static struct userNode*
3025 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)
3026 {
3027     struct userNode *oldUser, *uNode;
3028     unsigned int n, ignore_user, dummy;
3029     char *tstr;
3030     int type;
3031
3032     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
3033         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", (void*)uplink, nick, numeric);
3034         return NULL;
3035     }
3036
3037     if (!uplink) {
3038         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", (void*)uplink, nick, numeric);
3039         return NULL;
3040     }
3041
3042     if (uplink != GetServerN(numeric)) {
3043         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", (void*)uplink, nick, numeric, uplink->name);
3044         return NULL;
3045     }
3046
3047     dummy = modes && modes[0] == '*';
3048     if (dummy) {
3049         ++modes;
3050     } else if (!is_valid_nick(nick)) {
3051         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", (void*)uplink, nick);
3052         return NULL;
3053     }
3054
3055     ignore_user = 0;
3056     if ((oldUser = GetUserH(nick))) {
3057         if (IsLocal(oldUser)
3058             && (IsService(oldUser) || IsPersistent(oldUser))) {
3059             /* The service should collide the new user off - but not
3060              * if the new user is coming in during a burst.  (During a
3061              * burst, the bursting server will kill either our user --
3062              * triggering a ReintroduceUser() -- or its own.)
3063              */
3064             oldUser->timestamp = timestamp - 1;
3065             ignore_user = 1;
3066             if (!uplink->burst)
3067                 irc_user(oldUser);
3068         } else if (oldUser->timestamp > timestamp) {
3069             /* "Old" user is really newer; remove them */
3070             DelUser(oldUser, 0, 1, "Overruled by older nick");
3071         } else {
3072             /* User being added is too new; do not add them to
3073              * clients, but do add them to the server's list, since it
3074              * will send a KILL and QUIT soon. */
3075             ignore_user = 1;
3076         }
3077     }
3078
3079     /* create new usernode and set all values */
3080     uNode = calloc(1, sizeof(*uNode));
3081     uNode->nick = strdup(nick);
3082     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
3083     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
3084     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
3085     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
3086     irc_p10_pton(&uNode->ip, realip);
3087
3088     tstr = conf_get_data("server/type", RECDB_QSTRING);
3089     type = atoi(tstr);
3090     if (type > 6) {
3091       if (irc_in_addr_is_ipv4(uNode->ip)) {
3092         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
3093         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3094       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
3095         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3096       }
3097     }
3098
3099     if (!uNode->crypthost && uNode->cryptip)
3100         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
3101     uNode->idle_since = timestamp;
3102     uNode->timestamp = timestamp;
3103     modeList_init(&uNode->channels);
3104     uNode->uplink = uplink;
3105     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
3106         uNode->uplink->max_clients = uNode->uplink->clients;
3107     }
3108     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
3109     uNode->uplink->users[uNode->num_local] = uNode;
3110     mod_usermode(uNode, modes);
3111     if (dummy)
3112         uNode->modes |= FLAGS_DUMMY;
3113
3114     set_geoip_info(uNode);
3115
3116     if (ignore_user)
3117         return uNode;
3118
3119     dict_insert(clients, uNode->nick, uNode);
3120     if (dict_size(clients) > max_clients) {
3121         max_clients = dict_size(clients);
3122         max_clients_time = now;
3123     }
3124     if (IsLocal(uNode))
3125         irc_user(uNode);
3126     for (n=0; (n<nuf_used) && !uNode->dead; n++)
3127         nuf_list[n](uNode);
3128
3129     if ((uNode->loc == 1) && (uNode->handle_info))
3130         send_func_list(uNode);
3131
3132     return uNode;
3133 }
3134
3135 /* removes user from it's server's hash table and nick hash table */
3136 void
3137 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3138 {
3139     unsigned int n;
3140
3141     verify(user);
3142
3143     /* mark them as dead, in case anybody cares */
3144     user->dead = 1;
3145
3146     /* remove pending adduser commands */
3147     wipe_adduser_pending(NULL, user);
3148
3149     /* remove user from all channels */
3150     while (user->channels.used > 0)
3151         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, NULL, 0);
3152
3153     /* Call these in reverse order so ChanServ can update presence
3154        information before NickServ nukes the handle_info. */
3155     for (n = duf_used; n > 0; )
3156         duf_list[--n](user, killer, why);
3157
3158     user->uplink->clients--;
3159     user->uplink->users[user->num_local] = NULL;
3160     if (IsOper(user))
3161         userList_remove(&curr_opers, user);
3162     /* remove from global dictionary, but not if after a collide */
3163     if (user == dict_find(clients, user->nick, NULL))
3164         dict_remove(clients, user->nick);
3165
3166     if (IsInvisible(user))
3167         invis_clients--;
3168
3169     if (announce) {
3170         if (IsLocal(user))
3171             irc_quit(user, why);
3172         else
3173             irc_kill(killer, user, why);
3174     }
3175
3176     if (IsLocal(user)) {
3177         unsigned int num = user->num_local;
3178         if (num < num_privmsg_funcs)
3179             privmsg_funcs[num] = NULL;
3180         if (num < num_notice_funcs)
3181             notice_funcs[num] = NULL;
3182     }
3183
3184     modeList_clean(&user->channels);
3185
3186     /* Clean up version data */
3187     if(user->version_reply) {
3188         free(user->version_reply);
3189         user->version_reply = NULL;
3190     }
3191
3192     /* clean up mark */
3193     if(user->mark) {
3194         free(user->mark);
3195         user->mark = NULL;
3196     }
3197
3198     /* clean up geoip data if any */
3199     if(user->country_code) free(user->country_code);
3200     if(user->city) free(user->city);
3201     if(user->region) free(user->region);
3202     if(user->postal_code) free(user->postal_code);
3203
3204     /* We don't free them, in case we try to privmsg them or something
3205      * (like when a stupid oper kills themself).  We just put them onto
3206      * a list of clients that get freed after processing each line.
3207      */
3208     if (dead_users.size)
3209         userList_append(&dead_users, user);
3210     else
3211         free_user(user);
3212 }
3213
3214 static void call_oper_funcs(struct userNode *user);
3215
3216 void mod_usermode(struct userNode *user, const char *mode_change) {
3217     int add = 1;
3218     const char *word = mode_change;
3219
3220     if (!user || !mode_change)
3221         return;
3222
3223     call_user_mode_funcs(user, mode_change);
3224
3225     while (*word != ' ' && *word) word++;
3226     while (*word == ' ') word++;
3227     while (1) {
3228 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3229         switch (*mode_change++) {
3230         case 0: case ' ': return;
3231         case '+': add = 1; break;
3232         case '-': add = 0; break;
3233         case 'o':
3234             do_user_mode(FLAGS_OPER);
3235             if (!add) {
3236                 userList_remove(&curr_opers, user);
3237             } else if (!userList_contains(&curr_opers, user)) {
3238                 userList_append(&curr_opers, user);
3239                 call_oper_funcs(user);
3240             }
3241             break;
3242         case 'O': do_user_mode(FLAGS_LOCOP); break;
3243         case 'i': do_user_mode(FLAGS_INVISIBLE);
3244             if (add)
3245                 invis_clients++;
3246             else
3247                 invis_clients--;
3248             break;
3249         case 'w': do_user_mode(FLAGS_WALLOP); break;
3250         case 'd': do_user_mode(FLAGS_DEAF); break;
3251         case 'k': do_user_mode(FLAGS_SERVICE); break;
3252         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3253         case 'B': do_user_mode(FLAGS_BOT); break;
3254         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3255         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3256         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3257         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3258             if (*word) {
3259                 char cloakhost[MAXLEN];
3260                 unsigned int ii;
3261                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3262                     cloakhost[ii++] = *word++;
3263                 cloakhost[ii] = 0;
3264                 while (*word == ' ')
3265                     word++;
3266                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3267             }
3268             break;
3269         case 'c': do_user_mode(FLAGS_CLOAKIP);
3270             if (*word) {
3271                 char cloakip[MAXLEN];
3272                 unsigned int ii;
3273                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3274                     cloakip[ii++] = *word++;
3275                 cloakip[ii] = 0;
3276                 while (*word == ' ')
3277                     word++;
3278                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3279             }
3280             break;
3281         // sethost - reed/apples
3282         // case 'h': do_user_mode(FLAGS_HELPER); break;
3283         // I check if there's an 'h' in the first part, and if there,
3284         // then everything after the space becomes their new host.
3285         case 'h': do_user_mode(FLAGS_SETHOST);
3286             if (*word) {
3287                 char sethost[MAXLEN];
3288                 unsigned int ii;
3289                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3290                     sethost[ii++] = *word++;
3291                 sethost[ii] = 0;
3292                 while (*word == ' ')
3293                     word++;
3294                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3295             }
3296             break;
3297         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3298         case 'r':
3299             if (*word) {
3300                 char tag[MAXLEN];
3301                 unsigned int ii;
3302                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3303                     tag[ii++] = *word++;
3304                 tag[ii] = 0;
3305                 while (*word == ' ')
3306                     word++;
3307                 call_account_func(user, tag);
3308             }
3309             break;
3310         case 'f':
3311             if (*word) {
3312                 char host[MAXLEN];
3313                 unsigned int ii;
3314                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3315                     host[ii++] = *word++;
3316                 host[ii] = 0;
3317                 while (*word == ' ')
3318                     word++;
3319                 assign_fakehost(user, host, 0);
3320             }
3321             break;
3322         }
3323 #undef do_user_mode
3324     }
3325 }
3326
3327 static int
3328 keyncpy(char output[], char input[], size_t output_size)
3329 {
3330     size_t ii;
3331
3332     if (input[0] == ':')
3333     {
3334         output[0] = '\0';
3335         return 1;
3336     }
3337
3338     for (ii = 0; (ii + 1 < output_size) && (input[ii] != '\0'); ++ii)
3339     {
3340         output[ii] = input[ii];
3341     }
3342
3343     output[ii] = '\0';
3344     return 0;
3345 }
3346
3347 struct mod_chanmode *
3348 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3349 {
3350     struct mod_chanmode *change;
3351     unsigned int ii, in_arg, ch_arg, add;
3352
3353     if (argc == 0)
3354         return NULL;
3355     if (!(change = mod_chanmode_alloc(argc - 1)))
3356         return NULL;
3357
3358     for (ii = ch_arg = 0, in_arg = add = 1;
3359          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3360          ++ii) {
3361         switch (modes[0][ii]) {
3362         case '+':
3363             add = 1;
3364             break;
3365         case '-':
3366             add = 0;
3367             break;
3368 #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)
3369         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3370         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3371         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3372         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3373         case 'm': do_chan_mode(MODE_MODERATED); break;
3374         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3375         case 'p': do_chan_mode(MODE_PRIVATE); break;
3376         case 'r': do_chan_mode(MODE_REGONLY); break;
3377         case 's': do_chan_mode(MODE_SECRET); break;
3378         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3379         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3380         case 'M': do_chan_mode(MODE_MODUNREG); break;
3381         case 'N': do_chan_mode(MODE_NONOTICE); break;
3382         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3383         case 'T': do_chan_mode(MODE_NOAMSG); break;
3384         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3385         case 'a': do_chan_mode(MODE_ADMINSONLY); break;
3386         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3387         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3388         case 'z':
3389           if (!(flags & MCP_REGISTERED)) {
3390               do_chan_mode(MODE_REGISTERED);
3391           } else {
3392               mod_chanmode_free(change);
3393               return NULL;
3394           }
3395           break;
3396 #undef do_chan_mode
3397         case 'l':
3398             if (add) {
3399                 if (in_arg >= argc)
3400                     goto error;
3401                 change->modes_set |= MODE_LIMIT;
3402                 change->new_limit = atoi(modes[in_arg++]);
3403             } else {
3404                 change->modes_set &= ~MODE_LIMIT;
3405                 change->modes_clear |= MODE_LIMIT;
3406             }
3407             break;
3408         case 'k':
3409             if (add) {
3410                 if ((in_arg >= argc)
3411                     || keyncpy(change->new_key, modes[in_arg++], sizeof(change->new_key)))
3412                     goto error;
3413                 change->modes_set |= MODE_KEY;
3414             } else {
3415                 change->modes_clear |= MODE_KEY;
3416                 if (!(flags & MCP_KEY_FREE)) {
3417                     if (in_arg >= argc)
3418                         goto error;
3419                     in_arg++;
3420                 }
3421             }
3422             break;
3423         case 'U':
3424             if (add)
3425             {
3426                 if ((in_arg >= argc)
3427                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3428                     goto error;
3429                 change->modes_set |= MODE_UPASS;
3430             } else {
3431                 change->modes_clear |= MODE_UPASS;
3432                 if (!(flags & MCP_UPASS_FREE)) {
3433                     if (in_arg >= argc)
3434                         goto error;
3435                     in_arg++;
3436                 }
3437             }
3438             break;
3439         case 'A':
3440             if (add) {
3441                 if ((in_arg >= argc)
3442                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3443                 change->modes_set |= MODE_APASS;
3444             } else {
3445                 change->modes_clear |= MODE_APASS;
3446                 if (!(flags & MCP_APASS_FREE)) {
3447                     if (in_arg >= argc)
3448                       goto error;
3449                     in_arg++;
3450                 }
3451             }
3452             break;
3453         case 'b':
3454             if (!(flags & MCP_ALLOW_OVB))
3455                 goto error;
3456             if (in_arg >= argc)
3457                 goto error;
3458             change->args[ch_arg].mode = MODE_BAN;
3459             if (!add)
3460                 change->args[ch_arg].mode |= MODE_REMOVE;
3461             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3462             break;
3463         case 'e':
3464             if (!(flags & MCP_ALLOW_OVB))
3465                 goto error;
3466             if (in_arg >= argc)
3467                 goto error;
3468             change->args[ch_arg].mode = MODE_EXEMPT;
3469             if (!add)
3470                 change->args[ch_arg].mode |= MODE_REMOVE;
3471             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3472             break;
3473         case 'o': case 'h': case 'v':
3474         {
3475             struct userNode *victim;
3476             char *oplevel_str;
3477             int oplevel;
3478
3479             if (in_arg >= argc)
3480                 goto error;
3481             oplevel_str = strchr(modes[in_arg], ':');
3482             if (oplevel_str)
3483             {
3484                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3485                 *oplevel_str++ = '\0';
3486                 oplevel = parse_oplevel(oplevel_str);
3487                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3488                     oplevel = base_oplevel + 1;
3489             }
3490             else if (channel->modes & MODE_UPASS)
3491                 oplevel = base_oplevel + 1;
3492             else
3493                 oplevel = -1;
3494
3495             /* Check that oplevel is within bounds. */
3496             if (oplevel > MAXOPLEVEL)
3497                 oplevel = MAXOPLEVEL;
3498
3499             if (!(flags & MCP_ALLOW_OVB))
3500                 goto error;
3501             if (in_arg >= argc)
3502                 goto error;
3503
3504             if (modes[0][ii] == 'o')
3505                 change->args[ch_arg].mode = MODE_CHANOP;
3506             else if (modes[0][ii] == 'h')
3507                 change->args[ch_arg].mode = MODE_HALFOP;
3508             else if (modes[0][ii] == 'v')
3509                 change->args[ch_arg].mode = MODE_VOICE;
3510
3511             if (!add)
3512                 change->args[ch_arg].mode |= MODE_REMOVE;
3513             if (flags & MCP_FROM_SERVER)
3514                 victim = GetUserN(modes[in_arg++]);
3515             else
3516                 victim = GetUserH(modes[in_arg++]);
3517             if (!victim)
3518                 continue;
3519             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3520             {
3521                 /* Apply the oplevel change */
3522                 change->args[ch_arg].u.member->oplevel = oplevel;
3523                 ch_arg++;
3524             }
3525             break;
3526         }
3527         default:
3528             if (!(flags & MCP_FROM_SERVER))
3529                 goto error;
3530             break;
3531         }
3532     }
3533     change->argc = ch_arg; /* in case any turned out to be ignored */
3534     if (change->modes_set & MODE_SECRET) {
3535         change->modes_set &= ~(MODE_PRIVATE);
3536         change->modes_clear |= MODE_PRIVATE;
3537     } else if (change->modes_set & MODE_PRIVATE) {
3538         change->modes_set &= ~(MODE_SECRET);
3539         change->modes_clear |= MODE_SECRET;
3540     }
3541     return change;
3542   error:
3543     mod_chanmode_free(change);
3544     return NULL;
3545 }
3546
3547 struct chanmode_buffer {
3548     char modes[MAXLEN];
3549     char args[MAXLEN];
3550     struct chanNode *channel;
3551     struct userNode *actor;
3552     unsigned int modes_used;
3553     unsigned int args_used;
3554     size_t chname_len;
3555     unsigned int is_add : 1;
3556     unsigned int is_chanop : 1;
3557 };
3558
3559 static void
3560 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3561 {
3562     size_t arg_len = strlen(arg);
3563     if (buf->modes_used > (MAXMODEPARAMS) ||
3564         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3565         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3566         buf->modes[buf->modes_used + buf->args_used] = '\0';
3567         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3568         buf->modes[0] = buf->is_add ? '+' : '-';
3569         buf->modes_used = 1;
3570         buf->args_used = 0;
3571     }
3572     buf->modes[buf->modes_used++] = ch;
3573     buf->args[buf->args_used++] = ' ';
3574     memcpy(buf->args + buf->args_used, arg, arg_len);
3575     buf->args_used += arg_len;
3576 }
3577
3578 void
3579 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3580 {
3581     struct chanmode_buffer chbuf;
3582     unsigned int arg;
3583     struct modeNode *mn;
3584     char int_buff[32], mode = '\0';
3585
3586     assert(change->argc <= change->alloc_argc);
3587     memset(&chbuf, 0, sizeof(chbuf));
3588     chbuf.channel = channel;
3589     chbuf.actor = who;
3590     chbuf.chname_len = strlen(channel->name);
3591
3592     mn = GetUserMode(channel, who);
3593     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3594         chbuf.is_chanop = 1;
3595
3596     /* First remove modes */
3597     chbuf.is_add = 0;
3598     if (change->modes_clear) {
3599         if (mode != '-')
3600             chbuf.modes[chbuf.modes_used++] = mode = '-';
3601 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3602         DO_MODE_CHAR(PRIVATE, 'p');
3603         DO_MODE_CHAR(SECRET, 's');
3604         DO_MODE_CHAR(MODERATED, 'm');
3605         DO_MODE_CHAR(TOPICLIMIT, 't');
3606         DO_MODE_CHAR(INVITEONLY, 'i');
3607         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3608         DO_MODE_CHAR(LIMIT, 'l');
3609         DO_MODE_CHAR(DELAYJOINS, 'D');
3610         DO_MODE_CHAR(REGONLY, 'r');
3611         DO_MODE_CHAR(NOCOLORS, 'c');
3612         DO_MODE_CHAR(NOCTCPS, 'C');
3613         DO_MODE_CHAR(STRIPCOLOR, 'S');
3614         DO_MODE_CHAR(MODUNREG, 'M');
3615         DO_MODE_CHAR(NONOTICE, 'N');
3616         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3617         DO_MODE_CHAR(NOAMSG, 'T');
3618         DO_MODE_CHAR(OPERSONLY, 'O');
3619         DO_MODE_CHAR(REGISTERED, 'z');
3620         DO_MODE_CHAR(SSLONLY, 'Z');
3621         DO_MODE_CHAR(HIDEMODE, 'L');
3622 #undef DO_MODE_CHAR
3623         if (change->modes_clear & channel->modes & MODE_KEY)
3624             mod_chanmode_append(&chbuf, 'k', channel->key);
3625         if (change->modes_clear & channel->modes & MODE_UPASS)
3626             mod_chanmode_append(&chbuf, 'U', channel->upass);
3627         if (change->modes_clear & channel->modes & MODE_APASS)
3628             mod_chanmode_append(&chbuf, 'A', channel->apass);
3629     }
3630     for (arg = 0; arg < change->argc; ++arg) {
3631         if (!(change->args[arg].mode & MODE_REMOVE))
3632             continue;
3633         if (mode != '-')
3634             chbuf.modes[chbuf.modes_used++] = mode = '-';
3635         switch (change->args[arg].mode & ~MODE_REMOVE) {
3636         case MODE_BAN:
3637             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3638             break;
3639         case MODE_EXEMPT:
3640             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3641             break;
3642         default:
3643             if (change->args[arg].mode & MODE_CHANOP)
3644                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3645             if (change->args[arg].mode & MODE_HALFOP)
3646                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3647             if (change->args[arg].mode & MODE_VOICE)
3648                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3649             break;
3650         }
3651     }
3652
3653     /* Then set them */
3654     chbuf.is_add = 1;
3655     if (change->modes_set) {
3656         if (mode != '+')
3657             chbuf.modes[chbuf.modes_used++] = mode = '+';
3658 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3659         DO_MODE_CHAR(PRIVATE, 'p');
3660         DO_MODE_CHAR(SECRET, 's');
3661         DO_MODE_CHAR(MODERATED, 'm');
3662         DO_MODE_CHAR(TOPICLIMIT, 't');
3663         DO_MODE_CHAR(INVITEONLY, 'i');
3664         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3665         DO_MODE_CHAR(DELAYJOINS, 'D');
3666         DO_MODE_CHAR(REGONLY, 'r');
3667         DO_MODE_CHAR(NOCOLORS, 'c');
3668         DO_MODE_CHAR(NOCTCPS, 'C');
3669         DO_MODE_CHAR(STRIPCOLOR, 'S');
3670         DO_MODE_CHAR(MODUNREG, 'M');
3671         DO_MODE_CHAR(NONOTICE, 'N');
3672         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3673         DO_MODE_CHAR(NOAMSG, 'T');
3674         DO_MODE_CHAR(OPERSONLY, 'O');
3675         DO_MODE_CHAR(REGISTERED, 'z');
3676         DO_MODE_CHAR(SSLONLY, 'Z');
3677         DO_MODE_CHAR(HIDEMODE, 'L');
3678 #undef DO_MODE_CHAR
3679         if(change->modes_set & MODE_KEY)
3680             mod_chanmode_append(&chbuf, 'k', change->new_key);
3681         if (change->modes_set & MODE_UPASS)
3682             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3683         if (change->modes_set & MODE_APASS)
3684             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3685         if(change->modes_set & MODE_LIMIT) {
3686             sprintf(int_buff, "%d", change->new_limit);
3687             mod_chanmode_append(&chbuf, 'l', int_buff);
3688         }
3689     }
3690     for (arg = 0; arg < change->argc; ++arg) {
3691         if (change->args[arg].mode & MODE_REMOVE)
3692             continue;
3693         if (mode != '+')
3694             chbuf.modes[chbuf.modes_used++] = mode = '+';
3695         switch (change->args[arg].mode) {
3696         case MODE_BAN:
3697             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3698             break;
3699         case MODE_EXEMPT:
3700             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3701             break;
3702         default:
3703             if (change->args[arg].mode & MODE_CHANOP)
3704                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3705             if (change->args[arg].mode & MODE_HALFOP)
3706                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3707             if (change->args[arg].mode & MODE_VOICE)
3708                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3709             break;
3710         }
3711     }
3712
3713     /* Flush the buffer and apply changes locally */
3714     if (chbuf.modes_used > 0) {
3715         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3716         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3717         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3718     }
3719     mod_chanmode_apply(who, channel, change);
3720 }
3721
3722 char *
3723 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3724 {
3725     unsigned int used = 0;
3726     assert(change->argc <= change->alloc_argc);
3727     if (change->modes_clear) {
3728         outbuff[used++] = '-';
3729 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3730         DO_MODE_CHAR(PRIVATE, 'p');
3731         DO_MODE_CHAR(SECRET, 's');
3732         DO_MODE_CHAR(MODERATED, 'm');
3733         DO_MODE_CHAR(TOPICLIMIT, 't');
3734         DO_MODE_CHAR(INVITEONLY, 'i');
3735         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3736         DO_MODE_CHAR(LIMIT, 'l');
3737         DO_MODE_CHAR(KEY, 'k');
3738         DO_MODE_CHAR(UPASS, 'U');
3739         DO_MODE_CHAR(APASS, 'A');
3740         DO_MODE_CHAR(DELAYJOINS, 'D');
3741         DO_MODE_CHAR(REGONLY, 'r');
3742         DO_MODE_CHAR(NOCOLORS, 'c');
3743         DO_MODE_CHAR(NOCTCPS, 'C');
3744         DO_MODE_CHAR(STRIPCOLOR, 'S');
3745         DO_MODE_CHAR(MODUNREG, 'M');
3746         DO_MODE_CHAR(NONOTICE, 'N');
3747         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3748         DO_MODE_CHAR(NOAMSG, 'T');
3749         DO_MODE_CHAR(OPERSONLY, 'O');
3750         DO_MODE_CHAR(REGISTERED, 'z');
3751         DO_MODE_CHAR(SSLONLY, 'Z');
3752         DO_MODE_CHAR(HIDEMODE, 'L');
3753 #undef DO_MODE_CHAR
3754     }
3755     if (change->modes_set) {
3756         outbuff[used++] = '+';
3757 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3758         DO_MODE_CHAR(PRIVATE, 'p');
3759         DO_MODE_CHAR(SECRET, 's');
3760         DO_MODE_CHAR(MODERATED, 'm');
3761         DO_MODE_CHAR(TOPICLIMIT, 't');
3762         DO_MODE_CHAR(INVITEONLY, 'i');
3763         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3764         DO_MODE_CHAR(DELAYJOINS, 'D');
3765         DO_MODE_CHAR(REGONLY, 'r');
3766         DO_MODE_CHAR(NOCOLORS, 'c');
3767         DO_MODE_CHAR(NOCTCPS, 'C');
3768         DO_MODE_CHAR(STRIPCOLOR, 'S');
3769         DO_MODE_CHAR(MODUNREG, 'M');
3770         DO_MODE_CHAR(NONOTICE, 'N');
3771         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3772         DO_MODE_CHAR(NOAMSG, 'T');
3773         DO_MODE_CHAR(OPERSONLY, 'O');
3774         DO_MODE_CHAR(REGISTERED, 'z');
3775         DO_MODE_CHAR(SSLONLY, 'Z');
3776         DO_MODE_CHAR(HIDEMODE, 'L');
3777 #undef DO_MODE_CHAR
3778         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3779         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3780         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3781             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3782             break;
3783
3784         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3785             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3786             break;
3787         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3788             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3789             break;
3790         case MODE_KEY|MODE_APASS|MODE_UPASS:
3791             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3792             break;
3793
3794         case MODE_KEY|MODE_APASS:
3795             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3796             break;
3797         case MODE_KEY|MODE_UPASS:
3798             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3799             break;
3800         case MODE_KEY|MODE_LIMIT:
3801             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3802             break;
3803
3804         case MODE_LIMIT|MODE_UPASS:
3805             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3806             break;
3807         case MODE_LIMIT|MODE_APASS:
3808             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3809             break;
3810         case MODE_APASS|MODE_UPASS:
3811             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3812
3813         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3814             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3815             break;
3816
3817         case MODE_APASS:
3818             used += sprintf(outbuff+used, "A %s", change->new_apass);
3819             break;
3820         case MODE_UPASS:
3821             used += sprintf(outbuff+used, "U %s", change->new_upass);
3822             break;
3823         case MODE_KEY:
3824             used += sprintf(outbuff+used, "k %s", change->new_key);
3825             break;
3826         case MODE_LIMIT:
3827             used += sprintf(outbuff+used, "l %d", change->new_limit);
3828             break;
3829         }
3830     }
3831     outbuff[used] = 0;
3832     return outbuff;
3833 }
3834
3835 static int
3836 clear_chanmode(struct chanNode *channel, const char *modes)
3837 {
3838     unsigned int cleared;
3839
3840     for (cleared = 0; *modes; modes++) {
3841         switch (*modes) {
3842         case 'o': cleared |= MODE_CHANOP; break;
3843         case 'h': cleared |= MODE_HALFOP; break;
3844         case 'v': cleared |= MODE_VOICE; break;
3845         case 'p': cleared |= MODE_PRIVATE; break;
3846         case 's': cleared |= MODE_SECRET; break;
3847         case 'm': cleared |= MODE_MODERATED; break;
3848         case 't': cleared |= MODE_TOPICLIMIT; break;
3849         case 'i': cleared |= MODE_INVITEONLY; break;
3850         case 'n': cleared |= MODE_NOPRIVMSGS; break;
3851         case 'k':
3852             cleared |= MODE_KEY;
3853             channel->key[0] = '\0';
3854             break;
3855         case 'A':
3856             cleared |= MODE_APASS;
3857             channel->apass[0] = '\0';
3858             break;
3859         case 'U':
3860             cleared |= MODE_UPASS;
3861             channel->upass[0] = '\0';
3862             break;
3863         case 'l':
3864             cleared |= MODE_LIMIT;
3865             channel->limit = 0;
3866             break;
3867         case 'b': cleared |= MODE_BAN; break;
3868         case 'e': cleared |= MODE_EXEMPT; break;
3869         case 'D': cleared |= MODE_DELAYJOINS; break;
3870         case 'r': cleared |= MODE_REGONLY; break;
3871         case 'c': cleared |= MODE_NOCOLORS; break;
3872         case 'C': cleared |= MODE_NOCTCPS; break;
3873         case 'S': cleared |= MODE_STRIPCOLOR; break;
3874         case 'M': cleared |= MODE_MODUNREG; break;
3875         case 'N': cleared |= MODE_NONOTICE; break;
3876         case 'Q': cleared |= MODE_NOQUITMSGS; break;
3877         case 'T': cleared |= MODE_NOAMSG; break;
3878         case 'O': cleared |= MODE_OPERSONLY; break;
3879         case 'a': cleared |= MODE_ADMINSONLY; break;
3880         case 'z': cleared |= MODE_REGISTERED; break;
3881         case 'Z': cleared |= MODE_SSLONLY; break;
3882         case 'L': cleared |= MODE_HIDEMODE; break;
3883         }
3884     }
3885
3886     if (!cleared)
3887         return 1;
3888
3889     /* Remove simple modes. */
3890     channel->modes &= ~cleared;
3891
3892     /* If removing bans, kill 'em all. */
3893     if ((cleared & MODE_BAN) && channel->banlist.used) {
3894         unsigned int i;
3895         for (i=0; i<channel->banlist.used; i++)
3896             free(channel->banlist.list[i]);
3897         channel->banlist.used = 0;
3898     }
3899
3900     /* If removing exempts, kill 'em all. */
3901     if ((cleared & MODE_EXEMPT) && channel->exemptlist.used) {
3902         unsigned int i;
3903         for (i=0; i<channel->exemptlist.used; i++)
3904             free(channel->exemptlist.list[i]);
3905         channel->exemptlist.used = 0;
3906     }
3907
3908     /* Removed member modes. */
3909     if ((cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3910         int mask = ~(cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3911         unsigned int i;
3912
3913         for (i = 0; i < channel->members.used; i++)
3914             channel->members.list[i]->modes &= mask;
3915     }
3916
3917     return 1;
3918 }
3919
3920 void
3921 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3922 {
3923     unsigned int numeric = user->num_local;
3924     if (numeric >= num_privmsg_funcs) {
3925         int newnum = numeric + 8, ii;
3926         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3927         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3928             privmsg_funcs[ii] = NULL;
3929         num_privmsg_funcs = newnum;
3930     }
3931     if (privmsg_funcs[numeric])
3932         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3933     privmsg_funcs[numeric] = handler;
3934 }
3935
3936 void
3937 unreg_privmsg_func(struct userNode *user)
3938 {
3939     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3940         return; /* this really only works with users */
3941
3942     privmsg_funcs[user->num_local] = NULL;
3943 }
3944
3945
3946 void
3947 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3948 {
3949     unsigned int numeric = user->num_local;
3950     if (numeric >= num_notice_funcs) {
3951         int newnum = numeric + 8, ii;
3952         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3953         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3954             privmsg_funcs[ii] = NULL;
3955         num_notice_funcs = newnum;
3956     }
3957     if (notice_funcs[numeric])
3958         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3959     notice_funcs[numeric] = handler;
3960 }
3961
3962 void
3963 unreg_notice_func(struct userNode *user)
3964 {
3965     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3966         return; /* this really only works with users */
3967
3968     notice_funcs[user->num_local] = NULL;
3969 }
3970
3971 static void
3972 send_burst(void)
3973 {
3974     unsigned int i, hop, max_hop=1;
3975     dict_iterator_t it;
3976
3977     /* burst (juped) servers, closest first (except self, which is sent already) */
3978     for (i=0; i<ArrayLength(servers_num); i++)
3979         if (servers_num[i] && servers_num[i]->hops > max_hop)
3980             max_hop = servers_num[i]->hops;
3981     for (hop=1; hop<=max_hop; hop++) {
3982         for (i=0;i<ArrayLength(servers_num);i++) {
3983             if (servers_num[i]
3984                 && (servers_num[i]->hops == hop)
3985                 && (servers_num[i] != self->uplink))
3986                 irc_server(servers_num[i]);
3987         }
3988     }
3989
3990     /* burst local nicks */
3991     for (i=0; i<=self->num_mask; i++)
3992         if (self->users[i])
3993             irc_user(self->users[i]);
3994
3995     /* build dict of unbursted channel names (just copy existing channels) */
3996     unbursted_channels = dict_new();
3997     for (it = dict_first(channels); it; it = iter_next(it))
3998         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3999 }
4000
4001 /*
4002  * Oplevel parsing
4003  */
4004 static int
4005 parse_oplevel(char *str)
4006 {
4007     int oplevel = 0;
4008     while (isdigit(*str))
4009         oplevel = oplevel * 10 + *str++ - '0';
4010     return oplevel;
4011 }
4012