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_SPAMFILTER          "SPAMFILTER"
  99 #define CMD_SQUERY              "SQUERY"
 100 #define CMD_SQUIT               "SQUIT"
 101 #define CMD_STATS               "STATS"
 102 #define CMD_SVSJOIN             "SVSJOIN"
 103 #define CMD_SVSNICK             "SVSNICK"
 104 #define CMD_SVSPART             "SVSPART"
 105 #define CMD_SVSQUIT             "SVSQUIT"
 106 #define CMD_SWHOIS              "SWHOIS"
 107 #define CMD_TIME                "TIME"
 108 #define CMD_TOPIC               "TOPIC"
 109 #define CMD_TRACE               "TRACE"
 110 #define CMD_UPING               "UPING"
 111 #define CMD_USER                "USER"
 112 #define CMD_USERHOST            "USERHOST"
 113 #define CMD_USERIP              "USERIP"
 114 #define CMD_VERSION             "VERSION"
 115 #define CMD_WALLCHOPS           "WALLCHOPS"
 116 #define CMD_WALLOPS             "WALLOPS"
 117 #define CMD_WALLHOPS            "WALLHOPS"
 118 #define CMD_WALLUSERS           "WALLUSERS"
 119 #define CMD_WALLVOICES          "WALLVOICES"
 120 #define CMD_WALLHOPS            "WALLHOPS"
 121 #define CMD_WHO                 "WHO"
 122 #define CMD_WHOIS               "WHOIS"
 123 #define CMD_WHOWAS              "WHOWAS"
 124
 125 /* Tokenized commands. */
 126 #define TOK_ACCOUNT             "AC"
 127 #define TOK_ADMIN               "AD"
 128 #define TOK_ALIST               "AL"
 129 #define TOK_ASLL                "LL"
 130 #define TOK_AWAY                "A"
 131 #define TOK_BURST               "B"
 132 #define TOK_CLEARMODE           "CM"
 133 #define TOK_CLOSE               "CLOSE"
 134 #define TOK_CNOTICE             "CN"
 135 #define TOK_CONNECT             "CO"
 136 #define TOK_CPRIVMSG            "CP"
 137 #define TOK_CREATE              "C"
 138 #define TOK_DESTRUCT            "DE"
 139 #define TOK_DESYNCH             "DS"
 140 #define TOK_DIE                 "DIE"
 141 #define TOK_DNS                 "DNS"
 142 #define TOK_EOB                 "EB"
 143 #define TOK_EOB_ACK             "EA"
 144 #define TOK_ERROR               "Y"
 145 #define TOK_EXEMPT              "EX"
 146 #define TOK_FAKEHOST            "FA"
 147 #define TOK_GET                 "GET"
 148 #define TOK_GLINE               "GL"
 149 #define TOK_HASH                "HASH"
 150 #define TOK_HELP                "HELP"
 151 #define TOK_INFO                "F"
 152 #define TOK_INVITE              "I"
 153 #define TOK_ISON                "ISON"
 154 #define TOK_JOIN                "J"
 155 #define TOK_JUPE                "JU"
 156 #define TOK_KICK                "K"
 157 #define TOK_KILL                "D"
 158 #define TOK_LINKS               "LI"
 159 #define TOK_LIST                "LIST"
 160 #define TOK_LUSERS              "LU"
 161 #define TOK_MAP                 "MAP"
 162 #define TOK_MARK                "MK"
 163 #define TOK_MODE                "M"
 164 #define TOK_MOTD                "MO"
 165 #define TOK_NAMES               "E"
 166 #define TOK_NICK                "N"
 167 #define TOK_NOTICE              "O"
 168 #define TOK_OPER                "OPER"
 169 #define TOK_OPMODE              "OM"
 170 #define TOK_PART                "L"
 171 #define TOK_PASS                "PA"
 172 #define TOK_PING                "G"
 173 #define TOK_PONG                "Z"
 174 #define TOK_POST                "POST"
 175 #define TOK_PRIVMSG             "P"
 176 #define TOK_PRIVS               "PRIVS"
 177 #define TOK_PROTO               "PROTO"
 178 #define TOK_QUIT                "Q"
 179 #define TOK_REHASH              "REHASH"
 180 #define TOK_RESET               "RESET"
 181 #define TOK_RESTART             "RESTART"
 182 #define TOK_RPING               "RI"
 183 #define TOK_RPONG               "RO"
 184 #define TOK_SERVER              "S"
 185 #define TOK_SERVLIST            "SERVSET"
 186 #define TOK_SERVSET             "SERVSET"
 187 #define TOK_SET                 "SET"
 188 #define TOK_SETTIME             "SE"
 189 #define TOK_SGLINE              "SGL"
 190 #define TOK_SHUN                "SU"
 191 #define TOK_SILENCE             "U"
 192 #define TOK_SMO                 "SMO"
 193 #define TOK_SNO                 "SNO"
 194 #define TOK_SSHUN               "SSU"
 195 #define TOK_SPAMFILTER          "SF"
 196 #define TOK_SQUERY              "SQUERY"
 197 #define TOK_SQUIT               "SQ"
 198 #define TOK_STATS               "R"
 199 #define TOK_SVSJOIN             "SJ"
 200 #define TOK_SVSNICK             "SN"
 201 #define TOK_SVSPART             "SP"
 202 #define TOK_SVSQUIT             "SX"
 203 #define TOK_SWHOIS              "SW"
 204 #define TOK_TIME                "TI"
 205 #define TOK_TOPIC               "T"
 206 #define TOK_TRACE               "TR"
 207 #define TOK_UPING               "UP"
 208 #define TOK_USER                "USER"
 209 #define TOK_USERHOST            "USERHOST"
 210 #define TOK_USERIP              "USERIP"
 211 #define TOK_VERSION             "V"
 212 #define TOK_WALLCHOPS           "WC"
 213 #define TOK_WALLOPS             "WA"
 214 #define TOK_WALLHOPS            "WH"
 215 #define TOK_WALLUSERS           "WU"
 216 #define TOK_WALLVOICES          "WV"
 217 #define TOK_WALLHOPS            "WH"
 218 #define TOK_WHO                 "H"
 219 #define TOK_WHOIS               "W"
 220 #define TOK_WHOWAS              "X"
 221
 222 /* Protocol messages; aliased to full commands or tokens depending
 223    on compile-time configuration. ircu prefers tokens WITH THE
 224    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 225    tokenized, because clients' (ie. a linking server) commands are
 226    only checked against the full command list.
 227 */
 228 #if defined(ENABLE_TOKENS)
 229 #define TYPE(NAME)              TOK_ ## NAME
 230 #else /* !ENABLE_TOKENS */
 231 #define TYPE(NAME)              CMD_ ## NAME
 232 #endif /* ENABLE_TOKENS */
 233
 234 #define P10_ACCOUNT             TYPE(ACCOUNT)
 235 #define P10_ADMIN               TYPE(ADMIN)
 236 #define P10_ASLL                TYPE(ASLL)
 237 #define P10_AWAY                TYPE(AWAY)
 238 #define P10_BURST               TYPE(BURST)
 239 #define P10_CLEARMODE           TYPE(CLEARMODE)
 240 #define P10_CLOSE               TYPE(CLOSE)
 241 #define P10_CNOTICE             TYPE(CNOTICE)
 242 #define P10_CONNECT             TYPE(CONNECT)
 243 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 244 #define P10_CREATE              TYPE(CREATE)
 245 #define P10_DESTRUCT            TYPE(DESTRUCT)
 246 #define P10_DESYNCH             TYPE(DESYNCH)
 247 #define P10_DIE                 TYPE(DIE)
 248 #define P10_DNS                 TYPE(DNS)
 249 #define P10_EOB                 TYPE(EOB)
 250 #define P10_EOB_ACK             TYPE(EOB_ACK)
 251 #define P10_ERROR               TYPE(ERROR)
 252 #define P10_FAKEHOST            TYPE(FAKEHOST)
 253 #define P10_GET                 TYPE(GET)
 254 #define P10_GLINE               TYPE(GLINE)
 255 #define P10_HASH                TYPE(HASH)
 256 #define P10_HELP                TYPE(HELP)
 257 #define P10_INFO                TYPE(INFO)
 258 #define P10_INVITE              TYPE(INVITE)
 259 #define P10_ISON                TYPE(ISON)
 260 #define P10_JOIN                TYPE(JOIN)
 261 #define P10_JUPE                TYPE(JUPE)
 262 #define P10_KICK                TYPE(KICK)
 263 #define P10_KILL                TYPE(KILL)
 264 #define P10_LINKS               TYPE(LINKS)
 265 #define P10_LIST                TYPE(LIST)
 266 #define P10_LUSERS              TYPE(LUSERS)
 267 #define P10_MAP                 TYPE(MAP)
 268 #define P10_MARK                TYPE(MARK)
 269 #define P10_MODE                TYPE(MODE)
 270 #define P10_MOTD                TYPE(MOTD)
 271 #define P10_NAMES               TYPE(NAMES)
 272 #define P10_NICK                TYPE(NICK)
 273 #define P10_NOTICE              TYPE(NOTICE)
 274 #define P10_OPER                TYPE(OPER)
 275 #define P10_OPMODE              TYPE(OPMODE)
 276 #define P10_PART                TYPE(PART)
 277 #define P10_PASS                CMD_PASS
 278 #define P10_PING                TYPE(PING)
 279 #define P10_PONG                TYPE(PONG)
 280 #define P10_POST                TYPE(POST)
 281 #define P10_PRIVMSG             TYPE(PRIVMSG)
 282 #define P10_PRIVS               TYPE(PRIVS)
 283 #define P10_PROTO               TYPE(PROTO)
 284 #define P10_QUIT                TYPE(QUIT)
 285 #define P10_REHASH              TYPE(REHASH)
 286 #define P10_RESET               TYPE(RESET)
 287 #define P10_RESTART             TYPE(RESTART)
 288 #define P10_RPING               TYPE(RPING)
 289 #define P10_RPONG               TYPE(RPONG)
 290 #define P10_SERVER              CMD_SERVER
 291 #define P10_SERVLIST            TYPE(SERVLIST)
 292 #define P10_SERVSET             TYPE(SERVSET)
 293 #define P10_SET                 TYPE(SET)
 294 #define P10_SETTIME             TYPE(SETTIME)
 295 #define P10_SGLINE              TYPE(SGLINE)
 296 #define P10_SHUN                TYPE(SHUN)
 297 #define P10_SILENCE             TYPE(SILENCE)
 298 #define P10_SMO                 TYPE(SMO)
 299 #define P10_SNO                 TYPE(SNO)
 300 #define P10_SSHUN               TYPE(SSHUN)
 301 #define P10_SPAMFILTER          TYPE(SPAMFILTER)
 302 #define P10_SQUERY              TYPE(SQUERY)
 303 #define P10_SQUIT               TYPE(SQUIT)
 304 #define P10_STATS               TYPE(STATS)
 305 #define P10_SVSJOIN             TYPE(SVSJOIN)
 306 #define P10_SVSNICK             TYPE(SVSNICK)
 307 #define P10_SVSPART             TYPE(SVSPART)
 308 #define P10_SVSQUIT             TYPE(SVSQUIT)
 309 #define P10_SWHOIS              TYPE(SWHOIS)
 310 #define P10_TIME                TYPE(TIME)
 311 #define P10_TOPIC               TYPE(TOPIC)
 312 #define P10_TRACE               TYPE(TRACE)
 313 #define P10_UPING               TYPE(UPING)
 314 #define P10_USER                TYPE(USER)
 315 #define P10_USERHOST            TYPE(USERHOST)
 316 #define P10_USERIP              TYPE(USERIP)
 317 #define P10_VERSION             TYPE(VERSION)
 318 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 319 #define P10_WALLOPS             TYPE(WALLOPS)
 320 #define P10_WALLHOPS            TYPE(WALLHOPS)
 321 #define P10_WALLUSERS           TYPE(WALLUSERS)
 322 #define P10_WALLVOICES          TYPE(WALLVOICES)
 323 #define P10_WHO                 TYPE(WHO)
 324 #define P10_WHOIS               TYPE(WHOIS)
 325 #define P10_WHOWAS              TYPE(WHOWAS)
 326 #define P10_EXEMPT              TYPE(EXEMPT)
 327
 328 /* Servers claiming to have a boot or link time before PREHISTORY
 329  * trigger errors to the log.  We hope no server has been running
 330  * constantly since September 1994.  :)
 331  */
 332 #define PREHISTORY 780000000
 333
 334 #define MODELEN                 40 + KEYLEN
 335
 336 static struct server *servers_num[64*64];
 337 static privmsg_func_t *privmsg_funcs;
 338 static unsigned int num_privmsg_funcs;
 339 static privmsg_func_t *notice_funcs;
 340 static unsigned int num_notice_funcs;
 341 static struct dict *unbursted_channels;
 342 static const char *his_servername;
 343 static const char *his_servercomment;
 344 static int extended_accounts;
 345
 346 /* These correspond to 1 << X:      012345678901234567 */
 347 const char irc_user_mode_chars[] = "o iw dkgn        I";
 348
 349 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);
 350
 351 extern int off_channel;
 352 extern int DefConLevel;
 353 extern int DefConTimeOut;
 354 extern char *DefConChanModes;
 355
 356 static int parse_oplevel(char *str);
 357
 358 char privbuf[512] = "";
 359
 360 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 361  * server and Y's indentifying the client on that server. */
 362 struct server*
 363 GetServerN(const char *numeric)
 364 {
 365     switch (strlen(numeric)) {
 366     default:
 367         return servers_num[base64toint(numeric, 2)];
 368     case 4:
 369     case 3:
 370     case 1:
 371         return servers_num[base64toint(numeric, 1)];
 372     case 0:
 373         return NULL;
 374     }
 375 }
 376
 377 struct userNode*
 378 GetUserN(const char *numeric) /* using numeric */
 379 {
 380     struct userNode *un;
 381     struct server *s;
 382     int n, slen, ulen;
 383
 384     switch (strlen(numeric)) {
 385     default:
 386         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 387         return NULL;
 388     case 5: slen = 2; ulen = 3; break;
 389     case 4: slen = 1; ulen = 3; break;
 390     case 3: slen = 1; ulen = 2; break;
 391     case 2: case 1: case 0:
 392         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 393         return NULL;
 394     }
 395     if (!(s = servers_num[base64toint(numeric, slen)])) {
 396         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 397         return NULL;
 398     }
 399     n = base64toint(numeric+slen, ulen) & s->num_mask;
 400     if (!(un = s->users[n])) {
 401         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 402     }
 403     return un;
 404 }
 405
 406 extern struct userNode *opserv;
 407 static void
 408 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 409 {
 410     char *cmd;
 411     /* if its a version reply, do an alert check (only alerts with version=something) */
 412     if(bot == opserv) {
 413         if(text[0] == '\001') {
 414             text++;
 415             cmd = mysep(&text, " ");
 416             if(!irccasecmp(cmd, "VERSION")) {
 417                 char *version = mysep(&text, "\n");
 418                 if(!version)
 419                     version = "";
 420                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 421                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 422                 user->version_reply = strdup(version);
 423                 /* TODO: put this in the db */
 424                 if(match_ircglob(version, "WebTV;*"))
 425                     user->no_notice = true; /* webbies cant see notices */
 426             }
 427         }
 428     }
 429 }
 430
 431
 432 static void
 433 privmsg_user_helper(struct userNode *un, void *data)
 434 {
 435     struct privmsg_desc *pd = data;
 436     unsigned int num = un->num_local;
 437     if (!pd->is_notice) {
 438         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 439             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 440         }
 441     } else {
 442         if ((num < num_notice_funcs) && notice_funcs[num]) {
 443             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 444             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 445         }
 446     }
 447 }
 448
 449 /* equiv to user doing /connect server port target */
 450 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 451 {
 452     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 453 }
 454
 455 void
 456 irc_squit_route(struct server *srv, const char *message, ...)
 457 {
 458     va_list arg_list;
 459     char buffer[MAXLEN];
 460     va_start(arg_list, message);
 461     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 462     buffer[MAXLEN-1] = 0;
 463
 464     /* When would we squit ourselves exactly?? -Rubin */
 465     if(srv == self && cManager.uplink->state == CONNECTED ) {
 466         unsigned int i;
 467
 468         /* Quit all clients linked to me. */
 469         for(i = 0; i <= self->num_mask; i++) {
 470             if(!self->users[i])
 471                 continue;
 472             irc_quit(self->users[i], buffer);
 473         }
 474     }
 475
 476     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 477
 478     if(srv == self) {
 479         /* Force a reconnect to the currently selected server. */
 480         cManager.uplink->tries = 0;
 481         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 482         close_socket();
 483     }
 484 }
 485
 486 void
 487 irc_server(struct server *srv)
 488 {
 489     char extranum[COMBO_NUMERIC_LEN+1];
 490
 491     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 492     if (srv == self) {
 493         putsock(P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " J10 %s%s +s6 :%s",
 494                 srv->name, srv->hops+1, srv->boot, srv->link_time, srv->numeric, extranum, srv->description);
 495     } else {
 496         putsock("%s " P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " %c10 %s%s +s6 :%s",
 497                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link_time, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 498     }
 499 }
 500
 501 void
 502 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 503 {
 504     if (strlen(input) == 6) {
 505         unsigned int value;
 506         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 507         value = base64toint(input, 6);
 508         if (value)
 509             ip->in6[5] = htons(65535);
 510         ip->in6[6] = htons(value >> 16);
 511         ip->in6[7] = htons(value & 65535);
 512     } else {
 513         unsigned int pos = 0;
 514         do {
 515             if (*input == '_') {
 516                 unsigned int left;
 517                 for (left = (25 - strlen(input)) / 3; left; left--)
 518                     ip->in6[pos++] = 0;
 519                 input++;
 520             } else {
 521                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 522                 input += 3;
 523             }
 524         } while (pos < 8);
 525     }
 526 }
 527
 528 void
 529 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 530 {
 531     if (!irc_in_addr_is_valid(*ip)) {
 532         strcpy(output, "AAAAAA");
 533     } else if (irc_in_addr_is_ipv4(*ip)) {
 534         unsigned int in4;
 535         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 536         inttobase64(output, in4, 6);
 537         output[6] = '\0';
 538     } else if (irc_in_addr_is_ipv6(*ip)) {
 539         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 540         /* Can start by printing out the leading non-zero parts. */
 541         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 542             inttobase64(output, ntohs(ip->in6[ii]), 3);
 543             output += 3;
 544         }
 545         /* Find the longest run of zeros. */
 546         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 547             if (!ip->in6[ii])
 548                 curr_zeros++;
 549             else if (curr_zeros > max_zeros) {
 550                 max_start = ii - curr_zeros;
 551                 max_zeros = curr_zeros;
 552                 curr_zeros = 0;
 553             }
 554         }
 555         if (curr_zeros > max_zeros) {
 556             max_start = ii - curr_zeros;
 557             max_zeros = curr_zeros;
 558             curr_zeros = 0;
 559         }
 560         /* Print the rest of the address */
 561         for (ii = zero; ii < 8; ) {
 562             if ((ii == max_start) && max_zeros) {
 563                 *output++ = '_';
 564                 ii += max_zeros;
 565             } else {
 566                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 567                 output += 3;
 568             }
 569         }
 570         *output = '\0';
 571     } else {
 572         strcpy(output, "???");
 573     }
 574 }
 575
 576 void
 577 irc_user(struct userNode *user)
 578 {
 579     char b64ip[25];
 580     if (!user || IsDummy(user))
 581         return;
 582     irc_p10_ntop(b64ip, &user->ip);
 583     if (user->modes) {
 584         char modes[32];
 585
 586         irc_user_modes(user, modes, sizeof(modes));
 587         /* we don't need to put the + in modes because it's in the format string. */
 588         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s +%s %s %s :%s",
 589                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 590     } else {
 591         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s %s %s :%s",
 592                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 593     }
 594 }
 595
 596 void
 597 irc_rename(struct userNode *user, const char *new_handle)
 598 {
 599     if(extended_accounts)
 600         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 601 }
 602
 603 void
 604 irc_delete(struct userNode *user)
 605 {
 606     if(extended_accounts)
 607         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 608 }
 609
 610 void
 611 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 612 {
 613     if(extended_accounts)
 614         putsock("%s " P10_ACCOUNT " %s R %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 615     else
 616         putsock("%s " P10_ACCOUNT " %s %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 617 }
 618
 619 void
 620 irc_fakehost(struct userNode *user, const char *host)
 621 {
 622     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 623 }
 624
 625 void
 626 irc_regnick(UNUSED_ARG(struct userNode *user))
 627 {
 628     /* no operation here */
 629 }
 630
 631 void
 632 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 633 {
 634     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 635 }
 636
 637 void
 638 irc_fetchtopic(struct userNode *from, const char *to)
 639 {
 640     if (!from || !to)
 641         return;
 642     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 643 }
 644
 645 void
 646 irc_squit(struct server *srv, const char *message, const char *service_message)
 647 {
 648     if (!service_message)
 649         service_message = message;
 650
 651     /* Are we leaving the network? */
 652     if (srv == self && cManager.uplink->state == CONNECTED) {
 653         unsigned int i;
 654
 655         /* Quit all clients linked to me. */
 656         for (i = 0; i <= self->num_mask; i++) {
 657             if (!self->users[i])
 658                 continue;
 659             irc_quit(self->users[i], service_message);
 660         }
 661     }
 662
 663     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 664
 665     if (srv == self) {
 666         /* Force a reconnect to the currently selected server. */
 667         cManager.uplink->tries = 0;
 668         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 669         close_socket();
 670     }
 671 }
 672
 673 void
 674 irc_wallchops(struct userNode *from, const char *to, const char *message)
 675 {
 676     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 677 }
 678
 679 void
 680 irc_wallops(const char *format, ...)
 681 {
 682     va_list arg_list;
 683     char buffer[MAXLEN];
 684     va_start(arg_list, format);
 685     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 686     buffer[MAXLEN-1] = 0;
 687     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 688 }
 689
 690 static int
 691 deliver_to_dummy(struct userNode *source, struct userNode *dest, const char *message, int type)
 692 {
 693     unsigned int num;
 694
 695     if (!dest || !IsDummy(dest) || !IsLocal(dest))
 696         return 0;
 697     num = dest->num_local;
 698     switch (type) {
 699     default:
 700         if ((num < num_notice_funcs) && notice_funcs[num])
 701             notice_funcs[num](source, dest, message, 0);
 702         break;
 703     case 1:
 704         if ((num < num_privmsg_funcs) && privmsg_funcs[num])
 705             privmsg_funcs[num](source, dest, message, 0);
 706         break;
 707     }
 708     return 1;
 709 }
 710
 711 void
 712 irc_notice(struct userNode *from, const char *to, const char *message)
 713 {
 714     if (to[0] == '#' || to[0] == '$'
 715         || !deliver_to_dummy(from, GetUserN(to), message, 0))
 716         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 717 }
 718
 719 void
 720 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 721 {
 722     if (!deliver_to_dummy(from, to, message, 0))
 723         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 724 }
 725
 726 void
 727 irc_privmsg(struct userNode *from, const char *to, const char *message)
 728 {
 729     if (to[0] == '#' || to[0] == '$'
 730         || !deliver_to_dummy(from, GetUserN(to), message, 1))
 731         putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 732 }
 733
 734 void
 735 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 736 {
 737     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 738 }
 739
 740 void
 741 irc_version_user(struct userNode *from, struct userNode *to)
 742 {
 743     irc_privmsg_user(from, to, "\001VERSION\001");
 744 }
 745
 746 void
 747 irc_eob(void)
 748 {
 749     putsock("%s " P10_EOB, self->numeric);
 750 }
 751
 752 void
 753 irc_eob_ack(void)
 754 {
 755     putsock("%s " P10_EOB_ACK, self->numeric);
 756
 757     char *nick;
 758     const char *str;
 759     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 760     nick = strdup(str);
 761
 762     if (nick && (DefConLevel < 5)) {
 763         DefConProcess(GetUserH(nick));
 764
 765         if (DefConTimeOut > 0)
 766             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 767     }
 768 }
 769
 770 void
 771 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 772 {
 773     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 774 }
 775
 776 void
 777 irc_ping(const char *payload)
 778 {
 779     putsock("%s " P10_PING " :%s", self->numeric, payload);
 780 }
 781
 782 void
 783 irc_pong(const char *who, const char *data)
 784 {
 785     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 786 }
 787
 788 void
 789 irc_pong_asll(const char *who, const char *orig_ts)
 790 {
 791     char *delim;
 792     struct timeval orig;
 793     struct timeval sys_now;
 794     int diff;
 795
 796     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 797     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 798     gettimeofday(&sys_now, NULL);
 799     diff = (sys_now.tv_sec - orig.tv_sec) * 1000 + (sys_now.tv_usec - orig.tv_usec) / 1000;
 800     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);
 801 }
 802
 803 void
 804 irc_pass(const char *passwd)
 805 {
 806     putsock(P10_PASS " :%s", passwd);
 807 }
 808
 809 void
 810 irc_introduce(const char *passwd)
 811 {
 812     void timed_send_ping(void *data);
 813
 814     self->self_burst = self->burst = 1;
 815     irc_pass(passwd);
 816     irc_server(self);
 817     burst_length = 0;
 818     timeq_add(now + ping_freq, timed_send_ping, 0);
 819 }
 820
 821 void
 822 irc_gline(struct server *srv, struct gline *gline, int silent)
 823 {
 824     putsock("%s " P10_GLINE " %s +%s " FMT_TIME_T " " FMT_TIME_T " :%s<%s> %s",
 825             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 826 }
 827
 828 void
 829 irc_shun(struct server *srv, struct shun *shun)
 830 {
 831     putsock("%s " P10_SHUN " %s +%s " FMT_TIME_T " :<%s> %s",
 832             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 833 }
 834
 835 void
 836 irc_settime(const char *srv_name_mask, time_t new_time)
 837 {
 838     ioset_set_time(new_time);
 839     if (!strcmp(srv_name_mask, "*"))
 840         srv_name_mask = "";
 841     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 842 }
 843
 844 void
 845 irc_ungline(const char *mask)
 846 {
 847     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 848 }
 849
 850 void
 851 irc_unshun(const char *mask)
 852 {
 853     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 854 }
 855
 856 void
 857 irc_burst(struct chanNode *chan)
 858 {
 859     char burst_line[512];
 860     int pos, base_len, len;
 861     struct modeNode *mn;
 862     struct banNode *bn;
 863     struct exemptNode *en;
 864     long last_mode=-1;
 865     unsigned int first_ban;
 866     unsigned int first_exempt;
 867     unsigned int n;
 868
 869     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 870                        self->numeric, chan->name, chan->timestamp);
 871     len = irc_make_chanmode(chan, burst_line+base_len);
 872     pos = base_len + len;
 873     if (len > 0 && chan->members.used > 0)
 874         burst_line[pos++] = ' ';
 875
 876     if(chan->members.used < 1)
 877         return; /* dont burst empty channels (created by discrims) */
 878     /* dump the users */
 879     for (n=0; n<chan->members.used; n++) {
 880         mn = chan->members.list[n];
 881         if (pos > 500) {
 882             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 883             putsock("%s", burst_line);
 884             pos = base_len;
 885             last_mode = -1;
 886         }
 887
 888         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 889         pos += strlen(mn->user->numeric);
 890         if (mn->modes && (mn->modes != last_mode)) {
 891             last_mode = mn->modes;
 892             burst_line[pos++] = ':';
 893             if (last_mode & MODE_CHANOP)
 894                 burst_line[pos++] = 'o';
 895             if (last_mode & MODE_HALFOP)
 896                 burst_line[pos++] = 'h';
 897             if (last_mode & MODE_VOICE)
 898                 burst_line[pos++] = 'v';
 899         }
 900         if ((n+1)<chan->members.used)
 901             burst_line[pos++] = ',';
 902     }
 903     if (chan->banlist.used) {
 904         /* dump the bans */
 905         first_ban = 1;
 906
 907         for (n=0; n<chan->banlist.used; ) {
 908             if (first_ban && (pos < 500)) {
 909                 burst_line[pos++] = ':';
 910                 burst_line[pos++] = '%';
 911             }
 912             bn = chan->banlist.list[n];
 913             len = strlen(bn->ban);
 914             if (pos + 2 + len < 505) {
 915                 memcpy(burst_line + pos, bn->ban, len);
 916                 pos += len;
 917                 burst_line[pos++] = ' ';
 918                 first_ban = 0;
 919                 n++;
 920             } else {
 921                 burst_line[pos-1] = 0;
 922                 putsock("%s", burst_line);
 923                 pos = base_len;
 924                 first_ban = 1;
 925             }
 926         }
 927     }
 928     if (chan->exemptlist.used) {
 929         /* dump the exempts */
 930         first_exempt = 1;
 931
 932         for (n=0; n<chan->exemptlist.used; ) {
 933             if (first_exempt && (pos < 500)) {
 934                 burst_line[pos++] = ' ';
 935                 burst_line[pos++] = '~';
 936                 burst_line[pos++] = ' ';
 937             }
 938             en = chan->exemptlist.list[n];
 939             len = strlen(en->exempt);
 940             if (pos + 2 + len < 505) {
 941                 memcpy(burst_line + pos, en->exempt, len);
 942                 pos += len;
 943                 burst_line[pos++] = ' ';
 944                 first_exempt = 0;
 945                 n++;
 946             } else {
 947                 burst_line[pos-1] = 0;
 948                 putsock("%s", burst_line);
 949                 pos = base_len;
 950                 first_exempt = 1;
 951             }
 952         }
 953     }
 954     /* print the last line */
 955     burst_line[pos] = 0;
 956     putsock("%s", burst_line);
 957 }
 958
 959 void
 960 irc_quit(struct userNode *user, const char *message)
 961 {
 962     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 963 }
 964
 965 void
 966 irc_error(const char *to, const char *message)
 967 {
 968     if (to) {
 969         putsock("%s " P10_ERROR " :%s", to, message);
 970     } else {
 971         putsock(":%s " P10_ERROR " :%s", self->name, message);
 972     }
 973 }
 974
 975 void
 976 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 977 {
 978     if (from) {
 979         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 980                 from->numeric, target->numeric, self->name, from->nick, message);
 981     } else {
 982         putsock("%s " P10_KILL " %s :%s (%s)",
 983                 self->numeric, target->numeric, self->name, message);
 984     }
 985 }
 986
 987 void
 988 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 989 {
 990     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 991     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 992             (from ? from->numeric : self->numeric),
 993             target->name, modes, target->timestamp);
 994 }
 995
 996 /* Added to allow services to mode users
 997    2005 - 8 - 10 by Life4Christ
 998 */
 999 void
1000 irc_umode(struct userNode *target, const char *modes)
1001 {
1002     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
1003 }
1004
1005
1006 void
1007 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
1008 {
1009     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
1010 }
1011
1012 void
1013 irc_silence(struct userNode *who, const char *mask, int add)
1014 {
1015     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
1016 }
1017
1018 void
1019 irc_join(struct userNode *who, struct chanNode *what)
1020 {
1021     if (what->members.used == 1) {
1022         putsock("%s " P10_CREATE " %s "FMT_TIME_T,
1023                 who->numeric, what->name, what->timestamp);
1024     } else {
1025         putsock("%s " P10_JOIN " %s "FMT_TIME_T, who->numeric, what->name, what->timestamp);
1026     }
1027 }
1028
1029 void
1030 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1031 {
1032     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1033 }
1034
1035 void
1036 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1037 {
1038     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1039 }
1040
1041 void
1042 irc_svsquit(struct userNode *from, struct userNode *who, char const *reason)
1043 {
1044     putsock("%s " P10_SVSQUIT " %s :%s", from->uplink->numeric, who->numeric, reason);
1045 }
1046
1047 void
1048 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1049 {
1050     const char *numeric;
1051     struct modeNode *mn = GetUserMode(channel, who);
1052     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1053     putsock("%s " P10_KICK " %s %s :%s",
1054             numeric, channel->name, target->numeric, msg);
1055 }
1056
1057 void
1058 irc_stats(struct userNode *from, struct server *target, char type)
1059 {
1060     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1061 }
1062
1063 void
1064 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1065 {
1066     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1067 }
1068
1069 void
1070 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1071 {
1072     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1073                                          message ? message : "");
1074
1075 }
1076
1077 void
1078 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1079 {
1080     if (reason) {
1081         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1082     } else {
1083         putsock("%s " P10_PART " %s", who->numeric, what->name);
1084     }
1085 }
1086
1087 void
1088 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1089 {
1090
1091    int type = 4, host_in_topic = 0, hasident = 0;
1092    const char *hstr, *tstr;
1093    char *host, *hostmask;
1094    char shost[MAXLEN];
1095    char sident[MAXLEN];
1096
1097    tstr = conf_get_data("server/type", RECDB_QSTRING);
1098    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1099    if(tstr)
1100      type = atoi(tstr);
1101    else
1102      type = 4;/* default to 040 style topics */
1103
1104    if (hstr) {
1105       if (IsFakeHost(who))
1106           safestrncpy(shost, who->fakehost, sizeof(shost));
1107       else if (IsSetHost(who)) {
1108           hostmask = strdup(who->sethost);
1109           if ((host = (strrchr(hostmask, '@')))) {
1110               hasident = 1;
1111               *host++ = '\0';
1112           } else
1113               host = hostmask;
1114
1115           if (hasident)
1116               safestrncpy(sident, hostmask, sizeof(shost));
1117           else
1118               safestrncpy(sident, who->ident, sizeof(shost));
1119
1120           safestrncpy(shost, host, sizeof(shost));
1121       } else
1122           safestrncpy(shost, who->hostname, sizeof(shost));
1123
1124       host_in_topic = atoi(hstr);
1125    }
1126
1127    if (type >= 5) {
1128      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1129              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1130              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1131    } else {
1132      who = service;
1133      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1134    }
1135 }
1136
1137 void
1138 irc_raw(const char *what)
1139 {
1140     putsock("%s", what);
1141 }
1142
1143 void
1144 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1145 {
1146     va_list arg_list;
1147     char buffer[MAXLEN];
1148     va_start(arg_list, format);
1149     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1150     buffer[MAXLEN-1] = 0;
1151     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1152 }
1153
1154 void
1155 irc_mark(struct userNode *user, char *mark)
1156 {
1157     char *host = user->hostname;
1158
1159     /* 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 */
1160     if(user->mark)
1161         return;
1162
1163     /* if the mark will put us over the  host length, clip some off the left hand side
1164      * to make room...
1165      */
1166     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1167         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1168     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1169     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1170
1171     /* Save it in the user */
1172     user->mark = strdup(mark);
1173
1174     /* If they are not otherwise marked, mark their host with fakehost */
1175     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1176     {
1177         struct modeNode *mn = NULL;
1178         char fakehost[HOSTLEN];
1179         unsigned int count = 0;
1180         unsigned int n = 0;
1181
1182         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1183         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1184
1185         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1186         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1187
1188         for (n=count=0; n<user->channels.used; n++) {
1189             mn = user->channels.list[n];
1190             if (strlen(mn->channel->name) >= 1) /* Sanity */
1191                 check_bans(user, mn->channel->name);
1192         }
1193     }
1194 }
1195
1196 void irc_sno(unsigned int mask, char const* format, ...) {
1197     va_list arg_list;
1198     char buffer[MAXLEN];
1199     va_start(arg_list, format);
1200     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1201     buffer[MAXLEN-1] = 0;
1202     putsock("%s " CMD_SNO " %d :%s", self->numeric, mask, buffer);
1203 }
1204
1205 static void send_burst(void);
1206
1207 static void
1208 change_nicklen(int new_nicklen)
1209 {
1210     unsigned int nn;
1211     char new_nick[NICKLEN+1];
1212     struct userNode *user;
1213
1214     nicklen = new_nicklen;
1215     /* fix up any users we have here */
1216     for (nn=0; nn<=self->num_mask; nn++) {
1217         if (!(user = self->users[nn]))
1218             continue;
1219         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1220         new_nick[nicklen] = 0;
1221         NickChange(user, new_nick, 1);
1222     }
1223 }
1224
1225 static CMD_FUNC(cmd_whois)
1226 {
1227     struct userNode *from;
1228     struct userNode *who;
1229     char buf[MAXLEN];
1230     unsigned int i, mlen, len;
1231
1232     if (argc < 3)
1233         return 0;
1234     if (!(from = GetUserH(origin))) {
1235         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1236         return 0;
1237     }
1238     if (!(who = GetUserH(argv[2]))) {
1239         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1240         return 1;
1241     }
1242
1243     if (IsFakeHost(who) && IsHiddenHost(who))
1244         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->fakehost, who->info);
1245     else if (IsHiddenHost(who) && who->handle_info && hidden_host_suffix)
1246         irc_numeric(from, RPL_WHOISUSER, "%s %s %s.%s * :%s", who->nick, who->ident, who->handle_info->handle, hidden_host_suffix, who->info);
1247     else
1248         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1249
1250     if (IsService(who) || (from == who)) {
1251         struct modeNode *mn;
1252         mlen = strlen(self->name) + strlen(from->nick) + 12 + strlen(who->nick);
1253         len = 0;
1254         *buf = '\0';
1255         for (i = who->channels.used; i > 0; )
1256         {
1257             mn = who->channels.list[--i];
1258
1259             if (!IsOper(from) && (mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1260                 continue;
1261
1262             if (len + strlen(mn->channel->name) + mlen > MAXLEN - 5)
1263             {
1264                 irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1265                 *buf = '\0';
1266                 len = 0;
1267             }
1268
1269             if (IsDeaf(who))
1270                 *(buf + len++) = '-';
1271             if ((mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1272                 *(buf + len++) = '*';
1273             if (mn->modes & MODE_CHANOP)
1274                 *(buf + len++) = '@';
1275             else if (mn->modes & MODE_HALFOP)
1276                 *(buf + len++) = '%';
1277             else if (mn->modes & MODE_VOICE)
1278                 *(buf + len++) = '+';
1279
1280             if (len)
1281                 *(buf + len) = '\0';
1282             strcpy(buf + len, mn->channel->name);
1283             len += strlen(mn->channel->name);
1284             strcat(buf + len, " ");
1285             len++;
1286         }
1287         if (buf[0] != '\0')
1288             irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1289     }
1290
1291     if (his_servername && his_servercomment && !IsOper(from) && from != who)
1292         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1293     else
1294         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1295
1296     if (IsAway(who))
1297         irc_numeric(from, RPL_AWAY, "%s :Away", who->nick);
1298     if (IsOper(who))
1299         irc_numeric(from, RPL_WHOISOPERATOR, "%s :%s", who->nick, IsLocal(who) ? "is a megalomaniacal power hungry tyrant" : "is an IRC Operator");
1300     if (who->handle_info)
1301         irc_numeric(from, RPL_WHOISACCOUNT, "%s %s :is logged in as", who->nick, who->handle_info->handle);
1302     if (IsHiddenHost(who) && who->handle_info && (IsOper(from) || from == who))
1303         irc_numeric(from, RPL_WHOISACTUALLY, "%s %s@%s %s :Actual user@host, Actual IP", who->nick, who->ident, who->hostname, irc_ntoa(&who->ip));
1304     if (IsLocal(who) && !IsService(who) && (IsOper(from) || from == who))
1305         irc_numeric(from, RPL_WHOISIDLE, "%s %ld %ld :seconds idle, signon time", who->nick, now - who->idle_since, who->timestamp);
1306
1307     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1308     return 1;
1309 }
1310
1311 static CMD_FUNC(cmd_server)
1312 {
1313     struct server *srv;
1314     const char *str;
1315
1316     if (argc < 8)
1317         return 0;
1318     if (self->uplink) {
1319         /* another server introduced us */
1320         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1321         if (!srv)
1322             return 0;
1323         srv->self_burst = argv[5][0] == 'J';
1324         srv->burst = 1;
1325     } else {
1326         /* this must be our uplink */
1327         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1328         if (!srv)
1329             return 0;
1330         srv->self_burst = argv[5][0] == 'J';
1331         srv->burst = 1;
1332         if ((argv[7][0] == '+') && !force_n2k) {
1333             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1334         }
1335         send_burst();
1336     }
1337
1338     /* Fix up our timestamps if necessary. */
1339     if (srv->boot <= PREHISTORY) {
1340         /* Server from the mists of time.. */
1341         if (srv->hops == 1) {
1342             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1343         }
1344     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1345                && enabled_string(str)) {
1346         /* If we have a reliable clock, we just keep our current time. */
1347     } else {
1348         if (srv->boot <= self->boot) {
1349             /* The other server is older than us.  Accept their timestamp.
1350              * Alternately, we are same age, but we accept their time
1351              * since we are linking to them. */
1352             self->boot = srv->boot;
1353             ioset_set_time(srv->link_time
1354 );
1355         }
1356     }
1357     if (srv == self->uplink) {
1358         extern time_t burst_begin;
1359         burst_begin = now;
1360     }
1361     return 1;
1362 }
1363
1364
1365 static CMD_FUNC(cmd_eob)
1366 {
1367     struct server *sender;
1368     dict_iterator_t it;
1369
1370     if (!(sender = GetServerH(origin)))
1371         return 0;
1372     if (sender == self->uplink) {
1373         cManager.uplink->state = CONNECTED;
1374         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1375             irc_burst(iter_data(it));
1376         dict_delete(unbursted_channels);
1377         unbursted_channels = NULL;
1378         irc_eob();
1379         irc_eob_ack();
1380
1381         /* now that we know who our uplink is,
1382          * we can center the routing map and activate auto-routing.
1383          */
1384         //activate_routing(NULL, NULL, NULL);
1385         routing_init();
1386     }
1387     sender->self_burst = 0;
1388     recalc_bursts(sender);
1389     call_server_link_funcs(sender);
1390     /* let auto-routing figure out if we were
1391      * wating on this server to link a child to it */
1392     /* DONT call this if uplink is _US_ */
1393     if(sender->uplink != self)
1394         routing_handle_connect(sender->name, sender->uplink->name);
1395     return 1;
1396 }
1397
1398 static CMD_FUNC(cmd_eob_ack)
1399 {
1400     extern time_t burst_begin;
1401
1402     if (GetServerH(origin) == self->uplink) {
1403         burst_length = now - burst_begin;
1404         self->self_burst = self->burst = 0;
1405     }
1406     cManager.uplink->state = CONNECTED;
1407     return 1;
1408 }
1409
1410 static CMD_FUNC(cmd_rping)
1411 {
1412     struct server *dest;
1413
1414     if (!(dest = GetServerN(argv[1])))
1415         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1416
1417     if (dest == self)
1418         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1419
1420     return 1;
1421 }
1422
1423 static CMD_FUNC(cmd_ping)
1424 {
1425     struct server *srv;
1426     struct userNode *un;
1427
1428     if (argc > 3)
1429         irc_pong_asll(argv[2], argv[3]);
1430     else if ((srv = GetServerH(origin)))
1431         irc_pong(self->name, srv->numeric);
1432     else if ((un = GetUserH(origin)))
1433         irc_pong(self->name, un->numeric);
1434     else
1435         irc_pong(self->name, origin);
1436
1437     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1438     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1439     timeq_add(now + ping_freq, timed_send_ping, 0);
1440     received_ping();
1441     return 1;
1442 }
1443
1444 static CMD_FUNC(cmd_error_nick)
1445 {
1446     /* Go back to original IRC length .. and try to reconnect :/ */
1447     change_nicklen(9);
1448     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1449     return 1;
1450 }
1451
1452 struct create_desc {
1453     struct userNode *user;
1454     time_t when;
1455 };
1456
1457 static void
1458 join_helper(struct chanNode *chan, void *data)
1459 {
1460     struct create_desc *cd = data;
1461     AddChannelUser(cd->user, chan);
1462 }
1463
1464 static void
1465 create_helper(char *name, void *data)
1466 {
1467     struct create_desc *cd = data;
1468
1469     if (!strcmp(name, "0")) {
1470         while (cd->user->channels.used > 0)
1471             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1472         return;
1473     }
1474
1475     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1476 }
1477
1478 static CMD_FUNC(cmd_create)
1479 {
1480     struct create_desc cd;
1481     struct userNode *user;
1482
1483     if ((argc < 3) || !(user = GetUserH(origin)))
1484         return 0;
1485     cd.user = user;
1486     cd.when = atoi(argv[2]);
1487     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1488     return 1;
1489 }
1490
1491 static CMD_FUNC(cmd_join)
1492 {
1493     struct create_desc cd;
1494
1495     if (!(cd.user = GetUserH(origin)))
1496         return 0;
1497     if (argc < 2)
1498         return 0;
1499     else if (argc < 3)
1500         cd.when = now;
1501     else
1502         cd.when = atoi(argv[2]);
1503     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1504     return 1;
1505 }
1506
1507 static CMD_FUNC(cmd_svsjoin)
1508 {
1509     struct create_desc cd;
1510
1511     if (!(cd.user = GetUserH(argv[1])))
1512         return 0;
1513     if (argc < 3)
1514         return 0;
1515     else if (argc < 4)
1516         cd.when = now;
1517     else
1518         cd.when = atoi(argv[3]);
1519     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1520     return 1;
1521 }
1522
1523 static CMD_FUNC(cmd_pong)
1524 {
1525     if (argc < 3)
1526         return 0;
1527     if (!strcmp(argv[2], self->name)) {
1528         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1529         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1530         timeq_add(now + ping_freq, timed_send_ping, 0);
1531         received_ping();
1532     }
1533     return 1;
1534 }
1535
1536 static CMD_FUNC(cmd_nick)
1537 {
1538     struct userNode *user;
1539     if ((user = GetUserH(origin))) {
1540         /* nick change (since the source is a user numeric) */
1541         if (argc < 2)
1542             return 0;
1543         NickChange(user, argv[1], 1);
1544     } else {
1545         struct server *serv;
1546         struct userNode *nuser;
1547         char modes[MAXLEN];
1548         /* new nick */
1549         if (argc < 9)
1550             return 0;
1551         serv = GetServerH(origin);
1552         if (argc > 9)
1553             unsplit_string(argv+6, argc-9, modes);
1554         else
1555             strcpy(modes, "+");
1556         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1557     }
1558     return 1;
1559 }
1560
1561 static CMD_FUNC(cmd_account)
1562 {
1563     struct userNode *user;
1564     struct server *server;
1565     struct handle_info *hi;
1566
1567     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1568         return 0; /* Origin must be server. */
1569
1570     /* This next line appears to tremple origin.. why? */
1571     user = GetUserN(argv[1]);
1572     if (!user)
1573         return 1; /* A QUIT probably passed the ACCOUNT. */
1574
1575     if(!extended_accounts) /* any need for this function without? */
1576         return 1;
1577
1578     if(!strcmp(argv[2],"C"))
1579     {
1580         if((hi = loc_auth(argv[4], argv[5], NULL)))
1581         {
1582             /* Return a AC A */
1583             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1584
1585                         log_module(MAIN_LOG, LOG_DEBUG, "loc_auth: %s\n", user->nick);
1586          }
1587         else
1588         {
1589             /* Return a AC D */
1590             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1591         }
1592         return 1;
1593     }
1594     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1595     {
1596         if((hi = loc_auth(argv[5], argv[6], argv[4] )))
1597         {
1598             /* Return a AC A */
1599             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1600         }
1601         else
1602         {
1603             /* Return a AC D */
1604             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1605         }
1606         return 1;
1607     }
1608     else if(!strcmp(argv[2],"R"))
1609        call_account_func(user, argv[3]);
1610     else
1611         call_account_func(user, argv[2]); /* For backward compatability */
1612     return 1;
1613 }
1614
1615 static CMD_FUNC(cmd_fakehost)
1616 {
1617     struct userNode *user;
1618
1619     if ((argc < 3) || !origin || !GetServerH(origin))
1620         return 0;
1621     if (!(user = GetUserN(argv[1])))
1622         return 1;
1623     assign_fakehost(user, argv[2], 0);
1624     return 1;
1625 }
1626
1627 static struct {
1628   char        *name;
1629   unsigned int priv;
1630 } privtab[] = {
1631 #define P(priv)         { #priv, PRIV_ ## priv }
1632   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1633   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1634   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1635   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1636   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1637   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1638   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1639   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1640   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1641   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1642   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS), P(DISPLAY_MODE),
1643   P(FREEFORM),       P(REMOVE),         P(SPAMFILTER),
1644 #undef P
1645   { 0, 0 }
1646 };
1647
1648 char *client_report_privs(struct userNode *client)
1649 {
1650   int i;
1651
1652   privbuf[0] = '\0';
1653   for (i = 0; privtab[i].name; i++) {
1654     if (HasPriv(client, privtab[i].priv)) {
1655       strcat(privbuf, privtab[i].name);
1656       strcat(privbuf, " ");
1657     }
1658   }
1659
1660   privbuf[strlen(privbuf)] = 0;
1661
1662   return privbuf;
1663 }
1664
1665 int clear_privs(struct userNode *who) {
1666   int i = 0;
1667   assert(0 != who);
1668
1669   for (i = 0; privtab[i].name; i++)
1670     RevokePriv(who, privtab[i].priv);
1671
1672   return 0;
1673 }
1674
1675 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1676  int i = 0;
1677  assert(0 != priv);
1678  assert(0 != who);
1679
1680   for (i = 0; privtab[i].name; i++) {
1681     if (0 == strcmp(privtab[i].name, priv)) {
1682       if (what == PRIV_ADD)
1683         GrantPriv(who, privtab[i].priv);
1684       else if (what == PRIV_DEL) {
1685         RevokePriv(who, privtab[i].priv);
1686       }
1687     }
1688   }
1689   return 0;
1690 }
1691
1692 int check_priv(char *priv)
1693 {
1694   int i;
1695
1696   for (i = 0; privtab[i].name; i++) {
1697     if (0 == strcmp(privtab[i].name, priv)) {
1698       return 1;
1699     }
1700   }
1701   return 0;
1702 }
1703
1704 void
1705 irc_privs(struct userNode *target, char *flag, int add)
1706 {
1707     client_modify_priv_by_name(target, flag, add);
1708     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1709 }
1710
1711 void
1712 irc_raw_privs(struct userNode *target, const char *privs)
1713 {
1714     putsock("%s " P10_PRIVS " %s %s", self->numeric, target->numeric,  privs);
1715 }
1716
1717 static CMD_FUNC(cmd_privs)
1718 {
1719     char *tstr = NULL;
1720     char buf[512] = "";
1721     char *p = 0;
1722     char *tmp;
1723
1724     int what = PRIV_ADD;
1725     int type = 0;
1726
1727     unsigned int i;
1728
1729     struct server *sender;
1730     struct userNode *user;
1731
1732
1733     tstr = conf_get_data("server/type", RECDB_QSTRING);
1734     if(tstr)
1735         type = atoi(tstr);
1736
1737
1738     if (!(sender = GetServerH(origin))) { /* from oper */
1739         return 1; /* ignore as no services have privs set */
1740     } else { /* from server */
1741         if (type < 5)
1742             return 1; /* silently ignore */
1743
1744         user = argc > 1 ? GetUserN(argv[1]) : NULL;
1745
1746         if (!user)
1747             return 0;
1748
1749         for (i=1; i<argc; i++) {
1750             strcat(buf, argv[i]);
1751             strcat(buf, " ");
1752         }
1753
1754         for (i = 2; i < argc; i++) {
1755             if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1756             if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1757             for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1758                  tmp = x3_strtok(&p, NULL, ",")) {
1759                 if (!strcmp(tmp, "PRIV_NONE")) {
1760                     clear_privs(user);
1761                     break;
1762                 } else
1763                     client_modify_priv_by_name(user, tmp, what);
1764             }
1765         }
1766     }
1767     return 1;
1768 }
1769
1770 static CMD_FUNC(cmd_burst)
1771 {
1772     extern int rel_age;
1773     char modes[MAXLEN], *members = "";
1774     static char exemptlist[MAXLEN], banlist[MAXLEN];
1775     unsigned int next = 3, res = 1;
1776     int ctype = 0, echeck = 0, bcheck = 0;
1777     struct chanData *cData;
1778     struct chanNode *cNode;
1779     struct userNode *un;
1780     struct modeNode *mNode;
1781     long mode;
1782     int oplevel = -1;
1783     char *user, *end, sep;
1784     time_t in_timestamp;
1785     char* parm = NULL;
1786
1787     if (argc < 3)
1788         return 0;
1789     modes[0] = 0;
1790
1791     exemptlist[0] = 0;
1792     banlist[0] = 0;
1793
1794     while (next < argc) {
1795         switch (argv[next][0]) {
1796         case '+': {
1797             const char *pos;
1798             int n_modes;
1799             for (pos=argv[next], n_modes = 1; *pos; pos++)
1800                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1801                     || (*pos == 'U'))
1802                     n_modes++;
1803             if (next + n_modes > argc)
1804                 n_modes = argc - next;
1805             unsplit_string(argv+next, n_modes, modes);
1806             next += n_modes;
1807             break;
1808         }
1809         case '%': {
1810             for(parm = mysep(&argv[next], " "); /* parm = first param */
1811                   parm;   /* While param is not null */
1812                   parm = mysep(&argv[next], " ")  /* parm = next param */
1813                )
1814             {
1815               switch (parm[0]) {
1816                 case '%': {
1817                   ctype = 1;
1818                   break;
1819                 }
1820                 case '~': {
1821                   ctype = 2;
1822                   break;
1823                 }
1824                 default: {
1825                   break;
1826                 }
1827               }
1828               if (ctype == 1) {
1829                 if (bcheck == 0) {
1830                   /* strip % char off start of very first ban */
1831                   if (strlen(parm) > 1) {
1832                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1833                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1834                   }
1835                   bcheck = 1;
1836                 } else {
1837                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1838                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1839                 }
1840               } else if (ctype == 2) {
1841                 if (echeck == 0) {
1842                    echeck = 1;
1843                 } else {
1844                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1845                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1846                 }
1847               }
1848             }
1849             next++;
1850             break;
1851         }
1852         default: members = argv[next++]; break;
1853       }
1854     }
1855
1856     in_timestamp = atoi(argv[2]);
1857     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1858         cNode->timestamp = in_timestamp;
1859         dict_remove(unbursted_channels, cNode->name);
1860         irc_burst(cNode);
1861     }
1862     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1863     cData = cNode->channel_info;
1864
1865     if (!cData) {
1866         if (cNode->modes & MODE_REGISTERED) {
1867             irc_join(opserv, cNode);
1868             irc_mode(opserv, cNode, "-z");
1869             irc_part(opserv, cNode, "");
1870         }
1871     }
1872
1873     /* Burst channel members in now. */
1874     for (user = members, sep = *members, mode = 0; sep; user = end) {
1875         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1876         sep = *end++; end[-1] = 0;
1877         if (sep == ':') {
1878             mode = 0;
1879             while ((sep = *end++)) {
1880                 if (sep == 'o') {
1881                     mode |= MODE_CHANOP;
1882                     oplevel = -1;
1883                 } else if (sep == 'h') {
1884                     mode |= MODE_HALFOP;
1885                     oplevel = -1;
1886                 } else if (sep == 'v') {
1887                     mode |= MODE_VOICE;
1888                     oplevel = -1;
1889                 } else if (isdigit(sep)) {
1890                     mode |= MODE_CHANOP;
1891                     if (oplevel >= 0)
1892                         oplevel += parse_oplevel(end);
1893                     else
1894                         oplevel = parse_oplevel(end);
1895                     while (isdigit(*end)) end++;
1896                 } else
1897                     break;
1898             }
1899             if (rel_age < 0)
1900                 mode = 0;
1901         }
1902         if (!(un = GetUserN(user))) {
1903             res = 0;
1904             continue;
1905         }
1906         if ((mNode = AddChannelUser(un, cNode))) {
1907             mNode->modes = mode;
1908             mNode->oplevel = oplevel;
1909         }
1910     }
1911
1912     return res;
1913 }
1914
1915 /* TODO:
1916  * This is a stub that doesn't actually do anything. It should be completed
1917  * so that bans on *!*@markname.* match users as it does in nefarious
1918  */
1919 static CMD_FUNC(cmd_mark)
1920 {
1921     struct userNode *target;
1922     /*
1923      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1924      */
1925
1926     if(argc < 4)
1927         return 0;
1928     if(!strcasecmp(argv[2], "DNSBL")) {
1929         /* DNSBL <modes> */
1930         return 1;
1931     }
1932     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1933         /* DNSBL_DATA name */
1934         target = GetUserH(argv[1]);
1935         if(!target) {
1936             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1937             return 0;
1938         }
1939         target->mark = strdup(argv[3]);
1940         return 1;
1941
1942     }
1943     else if(!strcasecmp(argv[2], "CVERSION")) {
1944         /* CTCP VERSION mark */
1945         target = GetUserH(argv[1]);
1946         if(!target) {
1947             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1948             return 0;
1949         }
1950
1951         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1952         if(!version)
1953             version = "";
1954
1955         target->version_reply = strdup(version);
1956
1957         if(match_ircglob(version, "WebTV;*"))
1958             target->no_notice = true; /* webbies cant see notices */
1959
1960         return 1;
1961     }
1962     else if(!strcasecmp(argv[2], "SSLCLIFP")) {
1963         /* SSL fingerprint mark */
1964         target = GetUserH(argv[1]);
1965         if(!target) {
1966             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose SSL fingerprint mark is changing.", argv[1]);
1967             return 0;
1968         }
1969
1970         char *sslfp = unsplit_string(argv + 3, argc - 3, NULL);
1971         if(!sslfp)
1972             sslfp = "";
1973
1974         target->sslfp = strdup(sslfp);
1975
1976         return 1;
1977     }
1978     /* unknown type of mark */
1979     return 1;
1980 }
1981
1982 static CMD_FUNC(cmd_mode)
1983 {
1984     struct chanNode *cn;
1985     struct userNode *un;
1986     char *sethost; // sethost - reed/apples
1987     int i; // sethost - reed/apples
1988
1989     if (argc < 3)
1990         return 0;
1991     if (!IsChannelName(argv[1])) {
1992         un = GetUserH(argv[1]);
1993         if (!un) {
1994             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1995             return 0;
1996         }
1997         // sethost - reed/apples
1998         if (argc == 3)
1999         mod_usermode(un, argv[2]);
2000         else {
2001           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
2002           i = 0;
2003           while((sethost[i++] = *argv[2]++));
2004           i--;
2005          sethost[i++] = ' ';
2006           while((sethost[i++] = *argv[3]++));
2007           mod_usermode(un, sethost); // sethost - reed/apples
2008         }
2009
2010         return 1;
2011     }
2012
2013     if (!(cn = GetChannel(argv[1]))) {
2014         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2015         return 0;
2016     }
2017     if ((un = GetUserH(origin))) {
2018         struct modeNode *mn;
2019         /* Update idle time for person setting the mode */
2020         if ((mn = GetUserMode(cn, un)))
2021             mn->idle_since = now;
2022     } else {
2023         /* If it came from a server, reset timestamp to re-sync. */
2024         cn->timestamp = atoi(argv[argc-1]);
2025     }
2026
2027     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
2028         const char *str;
2029         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2030         if (str) {
2031             char modes[MODELEN];
2032             struct userNode *opserv = GetUserH(str);
2033
2034             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
2035             irc_make_chanmode(cn, modes);
2036             irc_mode(opserv, cn, modes);
2037             irc_mode(opserv, cn, DefConChanModes);
2038         }
2039         return 1;
2040     }
2041
2042
2043     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
2044 }
2045
2046 static CMD_FUNC(cmd_opmode)
2047 {
2048     struct chanNode *cn;
2049     struct userNode *un;
2050
2051     if (argc < 3)
2052         return 0;
2053
2054     if (!(cn = GetChannel(argv[1]))) {
2055         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2056         return 0;
2057     }
2058     if (!(un = GetUserH(origin))) {
2059         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
2060         return 0;
2061     }
2062     if (!IsOper(un)) {
2063         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
2064         return 0;
2065     }
2066
2067     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
2068 }
2069
2070 static int clear_chanmode(struct chanNode *channel, const char *modes);
2071
2072 static CMD_FUNC(cmd_clearmode)
2073 {
2074     struct chanNode *cn;
2075     struct userNode *un;
2076
2077     if (argc < 3)
2078         return 0;
2079
2080     if (!(cn = GetChannel(argv[1]))) {
2081         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2082         return 0;
2083     }
2084     if (!(un = GetUserH(origin))) {
2085         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
2086         return 0;
2087     }
2088     if (!IsOper(un)) {
2089         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
2090         return 0;
2091     }
2092
2093     return clear_chanmode(cn, argv[2]);
2094 }
2095
2096 static CMD_FUNC(cmd_topic)
2097 {
2098     struct chanNode *cn;
2099     time_t chan_ts, topic_ts;
2100     struct userNode *user;
2101
2102     if (argc < 3)
2103         return 0;
2104     if (!(cn = GetChannel(argv[1]))) {
2105         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
2106         return 0;
2107     }
2108
2109
2110     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
2111         user = GetUserH(origin);
2112         chan_ts = atoi(argv[2]);
2113         topic_ts = atoi(argv[3]);
2114     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2115         user = GetUserH(strtok(argv[2], "!"));
2116         chan_ts = atoi(argv[3]);
2117         topic_ts = atoi(argv[4]);
2118     } else {                      /* Regular IRCu (No Topic Bursting)*/
2119         user = GetUserH(origin);
2120         chan_ts = cn->timestamp;
2121         topic_ts = now;
2122     }
2123
2124     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2125     cn->topic_time = topic_ts;
2126     return 1;
2127 }
2128
2129 static CMD_FUNC(cmd_num_topic)
2130 {
2131     struct chanNode *cn;
2132
2133     if (!argv[0])
2134         return 0; /* huh? */
2135     if (argv[2]) {
2136         cn = GetChannel(argv[2]);
2137         if (!cn) {
2138             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2139             return 0;
2140         }
2141     } else
2142         return 0;
2143
2144     switch (atoi(argv[0])) {
2145     case 331:
2146         cn->topic_time = 0;
2147         break;  /* no topic */
2148     case 332:
2149         if (argc < 4)
2150             return 0;
2151         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2152         break;
2153     case 333:
2154         if (argc < 5)
2155             return 0;
2156         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2157         cn->topic_time = atoi(argv[4]);
2158         break;
2159     default:
2160         return 0; /* should never happen */
2161     }
2162     return 1;
2163 }
2164
2165 static CMD_FUNC(cmd_num_gline)
2166 {
2167     if (argc < 7) {
2168         if (argc < 6)
2169             return 0;
2170         else
2171             gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2172     } else {
2173         if (!strcmp(argv[5], "+"))
2174           gline_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0, 0);
2175     }
2176     return 1;
2177 }
2178
2179 static CMD_FUNC(cmd_num_shun)
2180 {
2181     if (argc < 7) {
2182         if (argc < 6)
2183             return 0;
2184         else
2185             shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2186     } else {
2187         if (!strcmp(argv[5], "+"))
2188             shun_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0);
2189     }
2190     return 1;
2191 }
2192
2193 static CMD_FUNC(cmd_quit)
2194 {
2195     struct userNode *user;
2196     if (argc < 2)
2197         return 0;
2198     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2199      * call DelUser unless we have the user in our grasp. */
2200     if ((user = GetUserH(origin)))
2201         DelUser(user, NULL, false, argv[1]);
2202     return 1;
2203 }
2204
2205 static CMD_FUNC(cmd_kill)
2206 {
2207     struct userNode *user;
2208     if (argc < 2)
2209         return 0;
2210     user = GetUserN(argv[1]);
2211     if (!user) {
2212         /* If we get a KILL for a non-existent user, it could be a
2213          * Ghost response to a KILL we sent out earlier.  So we only
2214          * whine if the target is local.
2215          */
2216         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2217             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2218         return 0;
2219     }
2220
2221     if (IsLocal(user) && IsService(user)) {
2222         /* TODO: rate limit this so silly things don't happen. */
2223         ReintroduceUser(user);
2224         return 1;
2225     }
2226
2227     DelUser(user, NULL, false, argv[2]);
2228     return 1;
2229 }
2230
2231 static CMD_FUNC(cmd_svspart)
2232 {
2233     struct userNode *user;
2234
2235     if (argc < 3)
2236         return 0;
2237     user = GetUserN(argv[1]);
2238     if (!user)
2239         return 0;
2240     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2241     return 1;
2242 }
2243
2244 static CMD_FUNC(cmd_silence)
2245 {
2246     struct userNode *user;
2247     char *mask;
2248     char *new_mask;
2249     unsigned int i;
2250
2251     if (argc < 2)
2252         return 0;
2253
2254     user = GetUserN(argv[1]);
2255
2256     /* Sanity, go nuts if this happens */
2257     if (!user)
2258         return 0;
2259
2260     /*  We can safely ignore this if a user adding a silence is not
2261      *  ignored. However this brings up a TODO. If a user logs in and
2262      *  they have silences on the IRCd then we need to set them here
2263      *  somehow
2264      */
2265     if (!user->handle_info)
2266         return 1;
2267
2268     mask = argv[2];
2269
2270     if (*mask == '-') {
2271         for (i=0; i<user->handle_info->ignores->used; i++) {
2272             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2273                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2274         }
2275     } else {
2276         for (i=0; i<user->handle_info->ignores->used; i++) {
2277             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2278                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2279         }
2280
2281         new_mask = strdup(mask+1);
2282         string_list_append(user->handle_info->ignores, new_mask);
2283     }
2284     return 1;
2285 }
2286
2287 static CMD_FUNC(cmd_kick)
2288 {
2289     if (argc < 3)
2290         return 0;
2291     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2292     return 1;
2293 }
2294
2295 static CMD_FUNC(cmd_squit)
2296 {
2297     struct server *server;
2298     char *uplink;
2299
2300     if (argc < 4)
2301         return 0;
2302     if (!(server = GetServerH(argv[1])))
2303         return 0;
2304
2305     if (server == self->uplink) {
2306         /* Force a reconnect to the currently selected server. */
2307         cManager.uplink->tries = 0;
2308         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2309         close_socket();
2310         return 1;
2311     }
2312
2313     uplink = strdup(server->uplink->name);
2314     DelServer(server, 0, argv[3]);
2315     /* if its a pingout and pingout connecting is enabled
2316                or its a read error and readerror connecting is enabled
2317                or were doing a "N" and i need to connect that server somewhere */
2318     routing_handle_squit(argv[1], uplink, argv[3]);
2319     free(uplink);
2320     return 1;
2321 }
2322
2323 static CMD_FUNC(cmd_privmsg)
2324 {
2325     struct privmsg_desc pd;
2326     if (argc < 3)
2327         return 0;
2328     pd.user = GetUserH(origin);
2329     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2330         return 1;
2331
2332     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2333         const char *str;
2334         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2335         if (str)
2336             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2337         return 1;
2338     }
2339
2340     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2341         return 1; /* Silently Ignore */
2342
2343     pd.is_notice = 0;
2344     pd.text = argv[argc - 1];
2345     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2346
2347     return 1;
2348 }
2349
2350 static CMD_FUNC(cmd_notice)
2351 {
2352     struct privmsg_desc pd;
2353     struct server *srv;
2354     int nuser = 0;
2355
2356     if (argc != 3)
2357         return 0;
2358
2359     pd.user = GetUserH(origin);
2360     if(!pd.user)
2361         nuser = 1;
2362     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2363     }
2364     else {
2365         pd.is_notice = 1;
2366         pd.text = argv[2];
2367         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2368     }
2369
2370     srv = GetServerH(origin);
2371     if(srv) {
2372         char *sargv[MAXNUMPARAMS];
2373         int sargc;
2374
2375         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2376
2377         if(!strcasecmp(sargv[0], "Connect:")) {
2378             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2379             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2380                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2381             }
2382         }
2383         else if(!strcasecmp(sargv[0], "Link")) {
2384             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2385              *
2386              * :Link with laptop.afternet.org cancelled: Connection refused
2387              */
2388             if(!strcasecmp(sargv[3], "cancelled:")) {
2389                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2390             }
2391         }
2392     }
2393     return 1;
2394 }
2395
2396 static CMD_FUNC(cmd_away)
2397 {
2398     struct userNode *uNode;
2399
2400     uNode = GetUserH(origin);
2401     if (!uNode)
2402         return 1;
2403     if (argc < 2)
2404         uNode->modes &= ~FLAGS_AWAY;
2405     else
2406         uNode->modes |= FLAGS_AWAY;
2407     return 1;
2408 }
2409
2410 static CMD_FUNC(cmd_gline)
2411 {
2412     if (argc < 3)
2413         return 0;
2414     if (argv[2][0] == '+') {
2415         if (argc < 5)
2416             return 0;
2417         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2418         return 1;
2419     } else if (argv[2][0] == '-') {
2420         gline_remove(argv[2]+1, 0);
2421         return 1;
2422     } else
2423         return 0;
2424 }
2425
2426 static CMD_FUNC(cmd_sgline)
2427 {
2428     struct server *sender;
2429
2430     if (argc < 4)
2431         return 0;
2432
2433     if (!(sender = GetServerH(origin)))
2434         return 0;
2435
2436     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1, 0);
2437     return 1;
2438 }
2439
2440 static CMD_FUNC(cmd_sshun)
2441 {
2442     struct server *sender;
2443
2444     if (argc < 4)
2445         return 0;
2446
2447     if (!(sender = GetServerH(origin)))
2448         return 0;
2449
2450     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1);
2451     return 1;
2452 }
2453
2454 static CMD_FUNC(cmd_shun)
2455 {
2456     if (argc < 3)
2457         return 0;
2458     if (argv[2][0] == '+') {
2459         if (argc < 5)
2460             return 0;
2461         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2462         return 1;
2463     } else if (argv[2][0] == '-') {
2464         shun_remove(argv[2]+1, 0);
2465         return 1;
2466     } else
2467         return 0;
2468 }
2469
2470 static CMD_FUNC(cmd_svsnick)
2471 {
2472     struct userNode *target, *dest;
2473     if ((argc < 4)
2474         || !(target = GetUserN(argv[1]))
2475         || !IsLocal(target)
2476         || (dest = GetUserH(argv[2])))
2477         return 0;
2478     NickChange(target, argv[2], 0);
2479     return 1;
2480 }
2481
2482 void
2483 free_user(struct userNode *user)
2484 {
2485     free(user->nick);
2486     free(user);
2487 }
2488
2489 static void
2490 parse_cleanup(UNUSED_ARG(void *extra))
2491 {
2492     unsigned int nn;
2493     free(of_list);
2494     free(of_list_extra);
2495     free(privmsg_funcs);
2496     num_privmsg_funcs = 0;
2497     free(notice_funcs);
2498     num_notice_funcs = 0;
2499     free(mcf_list);
2500     dict_delete(irc_func_dict);
2501     for (nn=0; nn<dead_users.used; nn++)
2502         free_user(dead_users.list[nn]);
2503     userList_clean(&dead_users);
2504 }
2505
2506 static void
2507 p10_conf_reload(void) {
2508     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2509     his_servername = conf_get_data("server/his_servername", RECDB_QSTRING);
2510     his_servercomment = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2511 }
2512
2513 static void
2514 remove_unbursted_channel(struct chanNode *cNode, UNUSED_ARG(void *extra)) {
2515     if (unbursted_channels)
2516         dict_remove(unbursted_channels, cNode->name);
2517 }
2518
2519 void
2520 init_parse(void)
2521 {
2522     const char *str, *desc;
2523     int numnick, usermask, max_users;
2524     char numer[COMBO_NUMERIC_LEN+1];
2525
2526     /* read config items */
2527     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2528     extended_accounts = str ? enabled_string(str) : 1;
2529     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2530     ping_freq = str ? ParseInterval(str) : 120;
2531     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2532     ping_timeout = str ? ParseInterval(str) : 30;
2533     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2534     force_n2k = str ? enabled_string(str) : 1;
2535     str = conf_get_data("server/numeric", RECDB_QSTRING);
2536     if (!str) {
2537         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2538         exit(1);
2539     }
2540     numnick = atoi(str);
2541     str = conf_get_data("server/max_users", RECDB_QSTRING);
2542     max_users = str ? atoi(str) : 4096;
2543     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2544     usermask--;
2545     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2546         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2547     else
2548         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2549
2550     str = conf_get_data("server/hostname", RECDB_QSTRING);
2551     desc = conf_get_data("server/description", RECDB_QSTRING);
2552     if (!str || !desc) {
2553         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2554         exit(1);
2555     }
2556     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2557     conf_register_reload(p10_conf_reload);
2558
2559     irc_func_dict = dict_new();
2560     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2561     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2562     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2563     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2564     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2565     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2566     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2567     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2568     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2569     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2570     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2571     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2572     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2573     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2574     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2575     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2576     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2577     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2578     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2579     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2580     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2581     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2582     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2583     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2584     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2585     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2586     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2587     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2588     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2589     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2590     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2591     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2592     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2593     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2594     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2595     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2596     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2597     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2598     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2599     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2600     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2601     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2602     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2603     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2604     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2605     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2606     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2607     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2608     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2609     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2610     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2611     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2612     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2613     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2614     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2615     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2616     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2617     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2618     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2619     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2620     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2621     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2622     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2623     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2624     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2625     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2626     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2627     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2628     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2629     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2630     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2631     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2632     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2633     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2634     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2635     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2636     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2637     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2638     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2639     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2640     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2641     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2642
2643     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2644     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2645     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2646     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2647
2648     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2649      * Apparently to obliterate channels from any servers that think they
2650      * exist?
2651      */
2652     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2653     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2654     /* Ignore invites */
2655     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2656     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2657     /* DESYNCH is just informational, so ignore it */
2658     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2659     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2660     /* Ignore channel operator notices. */
2661     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2662     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2663     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2664     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2665     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2666     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2667     /* Ignore opers being silly. */
2668     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2669     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2670     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2671     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2672     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2673     /* Ignore dnsbl exemptions */
2674     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2675     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2676     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2677     /* ignore ALIST for now */
2678     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2679     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2680     /* ignore SPAMFILTER */
2681     dict_insert(irc_func_dict, TOK_SPAMFILTER, cmd_dummy);
2682     dict_insert(irc_func_dict, CMD_SPAMFILTER, cmd_dummy);
2683     /* Ignore remote luser */
2684     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2685     /* We have reliable clock!  Always!  Wraaa! */
2686     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2687     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2688
2689     /* ignore /trace and /motd commands targetted at us */
2690     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2691     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2692     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2693
2694     /* handle topics */
2695     dict_insert(irc_func_dict, "331", cmd_num_topic);
2696     dict_insert(irc_func_dict, "332", cmd_num_topic);
2697     dict_insert(irc_func_dict, "333", cmd_num_topic);
2698     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2699     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2700     /* ban list resetting */
2701     /* "stats g" responses */
2702     dict_insert(irc_func_dict, "230", cmd_dummy); /* ignore stats headers */
2703     dict_insert(irc_func_dict, "247", cmd_num_gline);
2704     dict_insert(irc_func_dict, "542", cmd_num_shun);
2705     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2706     /* other numeric responses we might get */
2707     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2708     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2709     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2710     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2711     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2712     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2713     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2714     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2715     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2716
2717     num_privmsg_funcs = 16;
2718     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2719     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2720
2721     num_notice_funcs = 16;
2722     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2723     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2724
2725     userList_init(&dead_users);
2726     reg_del_channel_func(remove_unbursted_channel, NULL);
2727     reg_exit_func(parse_cleanup, NULL);
2728     // reg_notice_func(opserv, check_ctcp);
2729 }
2730
2731 int
2732 parse_line(char *line, int recursive)
2733 {
2734     char *argv[MAXNUMPARAMS], *origin;
2735     int argc, cmd, res=0;
2736     cmd_func_t *func;
2737
2738     argc = split_line(line, true, MAXNUMPARAMS, argv);
2739     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2740     if (argc > cmd) {
2741         if (cmd) {
2742             if (argv[0][0] == ':') {
2743                 origin = argv[0]+1;
2744             } else if (!argv[0][1] || !argv[0][2]) {
2745                 struct server *sNode = GetServerN(argv[0]);
2746                 origin = sNode ? sNode->name : 0;
2747             } else {
2748                 struct userNode *uNode = GetUserN(argv[0]);
2749                 origin = uNode ? uNode->nick : 0;
2750             }
2751         } else
2752             origin = 0;
2753         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2754             res = func(origin, argc-cmd, argv+cmd);
2755     }
2756     if (!res) {
2757         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2758     } else if (!recursive) {
2759         unsigned int i;
2760         for (i=0; i<dead_users.used; i++)
2761             free_user(dead_users.list[i]);
2762         dead_users.used = 0;
2763     }
2764     return res;
2765 }
2766
2767 static void
2768 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2769 {
2770     char *j, old;
2771
2772     do {
2773         j = target_list;
2774         while (*j != 0 && *j != ',')
2775             j++;
2776         old = *j;
2777         *j = 0;
2778
2779         if (IsChannelName(target_list)
2780             || (target_list[0] == '0' && target_list[1] == '\0')) {
2781             struct chanNode *chan = GetChannel(target_list);
2782
2783             if (chan) {
2784                 if (cf)
2785                     cf(chan, data);
2786             } else {
2787                 if (nc)
2788                     nc(target_list, data);
2789             }
2790         } else {
2791             struct userNode *user;
2792             struct privmsg_desc *pd = data;
2793
2794             pd->is_qualified = 0;
2795             if (*target_list == '@') {
2796                 user = NULL;
2797             } else if (strchr(target_list, '@')) {
2798                 struct server *server;
2799
2800                 pd->is_qualified = 1;
2801                 user = GetUserH(strtok(target_list, "@"));
2802                 server = GetServerH(strtok(NULL, "@"));
2803
2804                 if (user && (user->uplink != server)) {
2805                     /* Don't attempt to index into any arrays
2806                        using a user's numeric on another server. */
2807                     user = NULL;
2808                 }
2809             } else {
2810                 user = GetUserN(target_list);
2811             }
2812
2813             if (user) {
2814                 if (uf)
2815                     uf(user, data);
2816             } else {
2817                 if (nu)
2818                     nu(target_list, data);
2819             }
2820         }
2821         target_list = j+1;
2822     } while (old == ',');
2823 }
2824
2825 static int
2826 get_local_numeric(void)
2827 {
2828     static unsigned int next_numeric = 0;
2829     if (self->clients > self->num_mask)
2830         return -1;
2831     while (self->users[next_numeric])
2832         if (++next_numeric > self->num_mask)
2833             next_numeric = 0;
2834     return next_numeric;
2835 }
2836
2837 static void
2838 make_numeric(struct server *svr, int local_num, char *outbuf)
2839 {
2840     int slen, llen;
2841
2842     if (force_n2k || svr->numeric[1]) {
2843         slen = 2;
2844         llen = 3;
2845     } else {
2846         slen = 1;
2847         llen = (local_num < 64*64) ? 2 : 3;
2848     }
2849     strncpy(outbuf, svr->numeric, slen);
2850     inttobase64(outbuf+slen, local_num, llen);
2851     outbuf[slen+llen] = 0;
2852 }
2853
2854 struct server *
2855 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link_time, const char *numeric, const char *description)
2856 {
2857     struct server* sNode;
2858     int slen, mlen;
2859
2860     if ((sNode = GetServerN(numeric))) {
2861         /* This means we're trying to re-add an existant server.
2862          * To be safe, we should forget the previous incarnation.
2863          * (And all its linked servers.)
2864          *
2865          * It usually only happens in replays when the original
2866          * had a ping timeout and the replay didn't (because
2867          * replaying a ping timeout invariably gets things wrong).
2868          */
2869         DelServer(sNode, 0, NULL);
2870     }
2871
2872     switch (strlen(numeric)) {
2873     case 5: slen = 2; mlen = 3; break;
2874     case 4: slen = 1; mlen = 3; break;
2875     case 3: slen = 1; mlen = 2; break;
2876     default:
2877         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2878         return NULL;
2879     }
2880
2881     sNode = calloc(1, sizeof(*sNode));
2882     sNode->uplink = uplink;
2883     safestrncpy(sNode->name, name, sizeof(sNode->name));
2884     sNode->num_mask = base64toint(numeric+slen, mlen);
2885     sNode->hops = hops;
2886     sNode->boot = boot;
2887     sNode->link_time = link_time;
2888     strncpy(sNode->numeric, numeric, slen);
2889     safestrncpy(sNode->description, description, sizeof(sNode->description));
2890     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2891     serverList_init(&sNode->children);
2892     if (sNode->uplink) {
2893         /* uplink may be NULL if we're just building ourself */
2894         serverList_append(&sNode->uplink->children, sNode);
2895     }
2896     servers_num[base64toint(numeric, slen)] = sNode;
2897     dict_insert(servers, sNode->name, sNode);
2898     return sNode;
2899 }
2900
2901 void DelServer(struct server* serv, int announce, const char *message)
2902 {
2903     unsigned int i;
2904
2905     /* If we receive an ERROR command before the SERVER
2906      * command a NULL server can be passed */
2907     if (!serv)
2908         return;
2909
2910     /* Hrm, what's the right way to SQUIT some other server?
2911      * (This code is only to handle killing juped servers.) */
2912     if (announce && (serv->uplink == self) && (serv != self->uplink))
2913         irc_squit(serv, message, NULL);
2914
2915     /* must recursively remove servers linked to this one first */
2916     for (i=serv->children.used;i>0;)
2917         if (serv->children.list[--i] != self)
2918             DelServer(serv->children.list[i], false, NULL);
2919
2920     /* clean up server's user hash tables */
2921     for (i=0;i<=serv->num_mask;i++)
2922         if (serv->users[i])
2923             DelUser(serv->users[i], NULL, false, "server delinked");
2924
2925     /* delete server */
2926     if (serv->uplink)
2927         serverList_remove(&serv->uplink->children, serv);
2928     if (serv == self->uplink)
2929         self->uplink = NULL;
2930     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2931     dict_remove(servers, serv->name);
2932     serverList_clean(&serv->children);
2933     free(serv->users);
2934     free(serv);
2935 }
2936
2937 struct userNode *
2938 AddLocalUser(const char *nick, const char *ident, const char *hostname, const char *desc, const char *modes)
2939 {
2940     char numeric[COMBO_NUMERIC_LEN+1];
2941     int local_num = get_local_numeric();
2942     time_t timestamp = now;
2943     struct userNode *old_user = GetUserH(nick);
2944
2945     if (!modes)
2946         modes = "+oik";
2947
2948     if (old_user) {
2949         if (IsLocal(old_user))
2950             return old_user;
2951         timestamp = old_user->timestamp - 1;
2952     }
2953     if (local_num == -1) {
2954         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2955         return 0;
2956     }
2957     if (!hostname)
2958         hostname = self->name;
2959     make_numeric(self, local_num, numeric);
2960     return AddUser(self, nick, ident, hostname, modes, numeric, desc, now, "AAAAAA");
2961 }
2962
2963 struct userNode *
2964 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2965 {
2966     char numeric[COMBO_NUMERIC_LEN+1];
2967     int local_num = get_local_numeric();
2968     time_t timestamp = now;
2969     struct userNode *old_user = GetUserH(nick);
2970
2971     if (old_user) {
2972         if (IsLocal(old_user))
2973             return old_user;
2974         timestamp = old_user->timestamp - 1;
2975     }
2976     if (local_num == -1) {
2977         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2978         return 0;
2979     }
2980     make_numeric(self, local_num, numeric);
2981     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2982 }
2983
2984 int
2985 is_valid_nick(const char *nick) {
2986     unsigned int ii;
2987     /* IRC has some of The Most Fucked-Up ideas about character sets
2988      * in the world.. */
2989     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2990         return 0;
2991     for (ii = 0; nick[ii]; ++ii)
2992         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2993             return 0;
2994     if (strlen(nick) > nicklen)
2995         return 0;
2996     return 1;
2997 }
2998
2999 static struct userNode*
3000 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)
3001 {
3002     struct userNode *oldUser, *uNode;
3003     unsigned int ignore_user, dummy;
3004     char *tstr;
3005     int type;
3006
3007     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
3008         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", (void*)uplink, nick, numeric);
3009         return NULL;
3010     }
3011
3012     if (!uplink) {
3013         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", (void*)uplink, nick, numeric);
3014         return NULL;
3015     }
3016
3017     if (uplink != GetServerN(numeric)) {
3018         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", (void*)uplink, nick, numeric, uplink->name);
3019         return NULL;
3020     }
3021
3022     dummy = modes && modes[0] == '*';
3023     if (dummy) {
3024         ++modes;
3025     } else if (!is_valid_nick(nick)) {
3026         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", (void*)uplink, nick);
3027         return NULL;
3028     }
3029
3030     ignore_user = 0;
3031     if ((oldUser = GetUserH(nick))) {
3032         if (IsLocal(oldUser)
3033             && (IsService(oldUser) || IsPersistent(oldUser))) {
3034             /* The service should collide the new user off - but not
3035              * if the new user is coming in during a burst.  (During a
3036              * burst, the bursting server will kill either our user --
3037              * triggering a ReintroduceUser() -- or its own.)
3038              */
3039             oldUser->timestamp = timestamp - 1;
3040             ignore_user = 1;
3041             if (!uplink->burst)
3042                 irc_user(oldUser);
3043         } else if (oldUser->timestamp > timestamp) {
3044             /* "Old" user is really newer; remove them */
3045             DelUser(oldUser, 0, 1, "Overruled by older nick");
3046         } else {
3047             /* User being added is too new; do not add them to
3048              * clients, but do add them to the server's list, since it
3049              * will send a KILL and QUIT soon. */
3050             ignore_user = 1;
3051         }
3052     }
3053
3054     /* create new usernode and set all values */
3055     uNode = calloc(1, sizeof(*uNode));
3056     uNode->nick = strdup(nick);
3057     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
3058     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
3059     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
3060     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
3061     irc_p10_pton(&uNode->ip, realip);
3062
3063     tstr = conf_get_data("server/type", RECDB_QSTRING);
3064     type = atoi(tstr);
3065     if (type > 6) {
3066       if (irc_in_addr_is_ipv4(uNode->ip)) {
3067         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
3068         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3069       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
3070         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3071       }
3072     }
3073
3074     if (!uNode->crypthost && uNode->cryptip)
3075         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
3076     uNode->idle_since = timestamp;
3077     uNode->timestamp = timestamp;
3078     modeList_init(&uNode->channels);
3079     uNode->uplink = uplink;
3080     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
3081         uNode->uplink->max_clients = uNode->uplink->clients;
3082     }
3083     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
3084     uNode->uplink->users[uNode->num_local] = uNode;
3085     mod_usermode(uNode, modes);
3086     if (dummy)
3087         uNode->modes |= FLAGS_DUMMY;
3088
3089     set_geoip_info(uNode);
3090
3091     if (ignore_user)
3092         return uNode;
3093
3094     dict_insert(clients, uNode->nick, uNode);
3095     if (dict_size(clients) > max_clients) {
3096         max_clients = dict_size(clients);
3097         max_clients_time = now;
3098     }
3099     if (IsLocal(uNode))
3100         irc_user(uNode);
3101     call_new_user_funcs(uNode);
3102
3103     if ((uNode->loc == 1) && (uNode->handle_info))
3104         send_func_list(uNode);
3105
3106     return uNode;
3107 }
3108
3109 /* removes user from it's server's hash table and nick hash table */
3110 void
3111 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3112 {
3113
3114     verify(user);
3115
3116     /* mark them as dead, in case anybody cares */
3117     user->dead = 1;
3118
3119     /* remove pending adduser commands */
3120     wipe_adduser_pending(NULL, user);
3121
3122     /* remove user from all channels */
3123     while (user->channels.used > 0)
3124         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, NULL, 0);
3125
3126     /* Call these in reverse order so ChanServ can update presence
3127        information before NickServ nukes the handle_info. */
3128     call_del_user_funcs(user, killer, why);
3129
3130     user->uplink->clients--;
3131     user->uplink->users[user->num_local] = NULL;
3132     if (IsOper(user))
3133         userList_remove(&curr_opers, user);
3134     /* remove from global dictionary, but not if after a collide */
3135     if (user == dict_find(clients, user->nick, NULL))
3136         dict_remove(clients, user->nick);
3137
3138     if (IsInvisible(user))
3139         invis_clients--;
3140
3141     if (announce) {
3142         if (IsLocal(user))
3143             irc_quit(user, why);
3144         else
3145             irc_kill(killer, user, why);
3146     }
3147
3148     if (IsLocal(user)) {
3149         unsigned int num = user->num_local;
3150         if (num < num_privmsg_funcs)
3151             privmsg_funcs[num] = NULL;
3152         if (num < num_notice_funcs)
3153             notice_funcs[num] = NULL;
3154     }
3155
3156     modeList_clean(&user->channels);
3157
3158     /* Clean up version data */
3159     if(user->version_reply) {
3160         free(user->version_reply);
3161         user->version_reply = NULL;
3162     }
3163
3164     /* Clean up SSL fingerprint data */
3165     if(user->sslfp) {
3166         free(user->sslfp);
3167         user->sslfp = NULL;
3168     }
3169
3170     /* clean up mark */
3171     if(user->mark) {
3172         free(user->mark);
3173         user->mark = NULL;
3174     }
3175
3176     /* clean up geoip data if any */
3177     if(user->country_code) free(user->country_code);
3178     if(user->city) free(user->city);
3179     if(user->region) free(user->region);
3180     if(user->postal_code) free(user->postal_code);
3181
3182     /* We don't free them, in case we try to privmsg them or something
3183      * (like when a stupid oper kills themself).  We just put them onto
3184      * a list of clients that get freed after processing each line.
3185      */
3186     if (dead_users.size)
3187         userList_append(&dead_users, user);
3188     else
3189         free_user(user);
3190 }
3191
3192 static void call_oper_funcs(struct userNode *user);
3193
3194 void mod_usermode(struct userNode *user, const char *mode_change) {
3195     int add = 1;
3196     const char *word = mode_change;
3197
3198     if (!user || !mode_change)
3199         return;
3200
3201     call_user_mode_funcs(user, mode_change);
3202
3203     while (*word != ' ' && *word) word++;
3204     while (*word == ' ') word++;
3205     while (1) {
3206 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3207         switch (*mode_change++) {
3208         case 0: case ' ': return;
3209         case '+': add = 1; break;
3210         case '-': add = 0; break;
3211         case 'o':
3212             do_user_mode(FLAGS_OPER);
3213             if (!add) {
3214                 userList_remove(&curr_opers, user);
3215             } else if (!userList_contains(&curr_opers, user)) {
3216                 userList_append(&curr_opers, user);
3217                 call_oper_funcs(user);
3218             }
3219             break;
3220         case 'O': do_user_mode(FLAGS_LOCOP); break;
3221         case 'i': do_user_mode(FLAGS_INVISIBLE);
3222             if (add)
3223                 invis_clients++;
3224             else
3225                 invis_clients--;
3226             break;
3227         case 'w': do_user_mode(FLAGS_WALLOP); break;
3228         case 'd': do_user_mode(FLAGS_DEAF); break;
3229         case 'k': do_user_mode(FLAGS_SERVICE); break;
3230         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3231         case 'B': do_user_mode(FLAGS_BOT); break;
3232         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3233         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3234         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3235         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3236             if (*word) {
3237                 char cloakhost[MAXLEN];
3238                 unsigned int ii;
3239                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3240                     cloakhost[ii++] = *word++;
3241                 cloakhost[ii] = 0;
3242                 while (*word == ' ')
3243                     word++;
3244                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3245             }
3246             break;
3247         case 'c': do_user_mode(FLAGS_CLOAKIP);
3248             if (*word) {
3249                 char cloakip[MAXLEN];
3250                 unsigned int ii;
3251                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3252                     cloakip[ii++] = *word++;
3253                 cloakip[ii] = 0;
3254                 while (*word == ' ')
3255                     word++;
3256                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3257             }
3258             break;
3259         // sethost - reed/apples
3260         // case 'h': do_user_mode(FLAGS_HELPER); break;
3261         // I check if there's an 'h' in the first part, and if there,
3262         // then everything after the space becomes their new host.
3263         case 'h': do_user_mode(FLAGS_SETHOST);
3264             if (*word) {
3265                 char sethost[MAXLEN];
3266                 unsigned int ii;
3267                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3268                     sethost[ii++] = *word++;
3269                 sethost[ii] = 0;
3270                 while (*word == ' ')
3271                     word++;
3272                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3273             }
3274             break;
3275         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3276         case 'r':
3277             if (*word) {
3278                 char tag[MAXLEN];
3279                 unsigned int ii;
3280                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3281                     tag[ii++] = *word++;
3282                 tag[ii] = 0;
3283                 while (*word == ' ')
3284                     word++;
3285                 call_account_func(user, tag);
3286             }
3287             break;
3288         case 'f':
3289             if (*word) {
3290                 char host[MAXLEN];
3291                 unsigned int ii;
3292                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3293                     host[ii++] = *word++;
3294                 host[ii] = 0;
3295                 while (*word == ' ')
3296                     word++;
3297                 assign_fakehost(user, host, 0);
3298             }
3299             break;
3300         }
3301 #undef do_user_mode
3302     }
3303 }
3304
3305 static int
3306 keyncpy(char output[], char input[], size_t output_size)
3307 {
3308     size_t ii;
3309
3310     if (input[0] == ':')
3311     {
3312         output[0] = '\0';
3313         return 1;
3314     }
3315
3316     for (ii = 0; (ii + 1 < output_size) && (input[ii] != '\0'); ++ii)
3317     {
3318         output[ii] = input[ii];
3319     }
3320
3321     output[ii] = '\0';
3322     return 0;
3323 }
3324
3325 struct mod_chanmode *
3326 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3327 {
3328     struct mod_chanmode *change;
3329     unsigned int ii, in_arg, ch_arg, add;
3330
3331     if (argc == 0)
3332         return NULL;
3333     if (!(change = mod_chanmode_alloc(argc - 1)))
3334         return NULL;
3335
3336     for (ii = ch_arg = 0, in_arg = add = 1;
3337          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3338          ++ii) {
3339         switch (modes[0][ii]) {
3340         case '+':
3341             add = 1;
3342             break;
3343         case '-':
3344             add = 0;
3345             break;
3346 #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)
3347         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3348         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3349         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3350         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3351         case 'm': do_chan_mode(MODE_MODERATED); break;
3352         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3353         case 'p': do_chan_mode(MODE_PRIVATE); break;
3354         case 'r': do_chan_mode(MODE_REGONLY); break;
3355         case 's': do_chan_mode(MODE_SECRET); break;
3356         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3357         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3358         case 'M': do_chan_mode(MODE_MODUNREG); break;
3359         case 'N': do_chan_mode(MODE_NONOTICE); break;
3360         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3361         case 'T': do_chan_mode(MODE_NOAMSG); break;
3362         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3363         case 'a': do_chan_mode(MODE_ADMINSONLY); break;
3364         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3365         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3366         case 'z':
3367           if (!(flags & MCP_REGISTERED)) {
3368               do_chan_mode(MODE_REGISTERED);
3369           } else {
3370               mod_chanmode_free(change);
3371               return NULL;
3372           }
3373           break;
3374 #undef do_chan_mode
3375         case 'l':
3376             if (add) {
3377                 if (in_arg >= argc)
3378                     goto error;
3379                 change->modes_set |= MODE_LIMIT;
3380                 change->new_limit = atoi(modes[in_arg++]);
3381             } else {
3382                 change->modes_set &= ~MODE_LIMIT;
3383                 change->modes_clear |= MODE_LIMIT;
3384             }
3385             break;
3386         case 'k':
3387             if (add) {
3388                 if ((in_arg >= argc)
3389                     || keyncpy(change->new_key, modes[in_arg++], sizeof(change->new_key)))
3390                     goto error;
3391                 change->modes_set |= MODE_KEY;
3392             } else {
3393                 change->modes_clear |= MODE_KEY;
3394                 if (!(flags & MCP_KEY_FREE)) {
3395                     if (in_arg >= argc)
3396                         goto error;
3397                     in_arg++;
3398                 }
3399             }
3400             break;
3401         case 'U':
3402             if (add)
3403             {
3404                 if ((in_arg >= argc)
3405                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3406                     goto error;
3407                 change->modes_set |= MODE_UPASS;
3408             } else {
3409                 change->modes_clear |= MODE_UPASS;
3410                 if (!(flags & MCP_UPASS_FREE)) {
3411                     if (in_arg >= argc)
3412                         goto error;
3413                     in_arg++;
3414                 }
3415             }
3416             break;
3417         case 'A':
3418             if (add) {
3419                 if ((in_arg >= argc)
3420                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3421                 change->modes_set |= MODE_APASS;
3422             } else {
3423                 change->modes_clear |= MODE_APASS;
3424                 if (!(flags & MCP_APASS_FREE)) {
3425                     if (in_arg >= argc)
3426                       goto error;
3427                     in_arg++;
3428                 }
3429             }
3430             break;
3431         case 'b':
3432             if (!(flags & MCP_ALLOW_OVB))
3433                 goto error;
3434             if (in_arg >= argc)
3435                 goto error;
3436             change->args[ch_arg].mode = MODE_BAN;
3437             if (!add)
3438                 change->args[ch_arg].mode |= MODE_REMOVE;
3439             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3440             break;
3441         case 'e':
3442             if (!(flags & MCP_ALLOW_OVB))
3443                 goto error;
3444             if (in_arg >= argc)
3445                 goto error;
3446             change->args[ch_arg].mode = MODE_EXEMPT;
3447             if (!add)
3448                 change->args[ch_arg].mode |= MODE_REMOVE;
3449             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3450             break;
3451         case 'o': case 'h': case 'v':
3452         {
3453             struct userNode *victim;
3454             char *oplevel_str;
3455             int oplevel;
3456
3457             if (in_arg >= argc)
3458                 goto error;
3459             oplevel_str = strchr(modes[in_arg], ':');
3460             if (oplevel_str)
3461             {
3462                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3463                 *oplevel_str++ = '\0';
3464                 oplevel = parse_oplevel(oplevel_str);
3465                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3466                     oplevel = base_oplevel + 1;
3467             }
3468             else if (channel->modes & MODE_UPASS)
3469                 oplevel = base_oplevel + 1;
3470             else
3471                 oplevel = -1;
3472
3473             /* Check that oplevel is within bounds. */
3474             if (oplevel > MAXOPLEVEL)
3475                 oplevel = MAXOPLEVEL;
3476
3477             if (!(flags & MCP_ALLOW_OVB))
3478                 goto error;
3479             if (in_arg >= argc)
3480                 goto error;
3481
3482             if (modes[0][ii] == 'o')
3483                 change->args[ch_arg].mode = MODE_CHANOP;
3484             else if (modes[0][ii] == 'h')
3485                 change->args[ch_arg].mode = MODE_HALFOP;
3486             else if (modes[0][ii] == 'v')
3487                 change->args[ch_arg].mode = MODE_VOICE;
3488
3489             if (!add)
3490                 change->args[ch_arg].mode |= MODE_REMOVE;
3491             if (flags & MCP_FROM_SERVER)
3492                 victim = GetUserN(modes[in_arg++]);
3493             else
3494                 victim = GetUserH(modes[in_arg++]);
3495             if (!victim)
3496                 continue;
3497             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3498             {
3499                 /* Apply the oplevel change */
3500                 change->args[ch_arg].u.member->oplevel = oplevel;
3501                 ch_arg++;
3502             }
3503             break;
3504         }
3505         default:
3506             if (!(flags & MCP_FROM_SERVER))
3507                 goto error;
3508             break;
3509         }
3510     }
3511     change->argc = ch_arg; /* in case any turned out to be ignored */
3512     if (change->modes_set & MODE_SECRET) {
3513         change->modes_set &= ~(MODE_PRIVATE);
3514         change->modes_clear |= MODE_PRIVATE;
3515     } else if (change->modes_set & MODE_PRIVATE) {
3516         change->modes_set &= ~(MODE_SECRET);
3517         change->modes_clear |= MODE_SECRET;
3518     }
3519     return change;
3520   error:
3521     mod_chanmode_free(change);
3522     return NULL;
3523 }
3524
3525 struct chanmode_buffer {
3526     char modes[MAXLEN];
3527     char args[MAXLEN];
3528     struct chanNode *channel;
3529     struct userNode *actor;
3530     unsigned int modes_used;
3531     unsigned int args_used;
3532     size_t chname_len;
3533     unsigned int is_add : 1;
3534     unsigned int is_chanop : 1;
3535 };
3536
3537 static void
3538 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3539 {
3540     size_t arg_len = strlen(arg);
3541     if (buf->modes_used > (MAXMODEPARAMS) ||
3542         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3543         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3544         buf->modes[buf->modes_used + buf->args_used] = '\0';
3545         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3546         buf->modes[0] = buf->is_add ? '+' : '-';
3547         buf->modes_used = 1;
3548         buf->args_used = 0;
3549     }
3550     buf->modes[buf->modes_used++] = ch;
3551     buf->args[buf->args_used++] = ' ';
3552     memcpy(buf->args + buf->args_used, arg, arg_len);
3553     buf->args_used += arg_len;
3554 }
3555
3556 void
3557 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3558 {
3559     struct chanmode_buffer chbuf;
3560     unsigned int arg;
3561     struct modeNode *mn;
3562     char int_buff[32], mode = '\0';
3563
3564     assert(change->argc <= change->alloc_argc);
3565     memset(&chbuf, 0, sizeof(chbuf));
3566     chbuf.channel = channel;
3567     chbuf.actor = who;
3568     chbuf.chname_len = strlen(channel->name);
3569
3570     mn = GetUserMode(channel, who);
3571     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3572         chbuf.is_chanop = 1;
3573
3574     /* First remove modes */
3575     chbuf.is_add = 0;
3576     if (change->modes_clear) {
3577         if (mode != '-')
3578             chbuf.modes[chbuf.modes_used++] = mode = '-';
3579 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3580         DO_MODE_CHAR(PRIVATE, 'p');
3581         DO_MODE_CHAR(SECRET, 's');
3582         DO_MODE_CHAR(MODERATED, 'm');
3583         DO_MODE_CHAR(TOPICLIMIT, 't');
3584         DO_MODE_CHAR(INVITEONLY, 'i');
3585         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3586         DO_MODE_CHAR(LIMIT, 'l');
3587         DO_MODE_CHAR(DELAYJOINS, 'D');
3588         DO_MODE_CHAR(REGONLY, 'r');
3589         DO_MODE_CHAR(NOCOLORS, 'c');
3590         DO_MODE_CHAR(NOCTCPS, 'C');
3591         DO_MODE_CHAR(STRIPCOLOR, 'S');
3592         DO_MODE_CHAR(MODUNREG, 'M');
3593         DO_MODE_CHAR(NONOTICE, 'N');
3594         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3595         DO_MODE_CHAR(NOAMSG, 'T');
3596         DO_MODE_CHAR(OPERSONLY, 'O');
3597         DO_MODE_CHAR(REGISTERED, 'z');
3598         DO_MODE_CHAR(SSLONLY, 'Z');
3599         DO_MODE_CHAR(HIDEMODE, 'L');
3600 #undef DO_MODE_CHAR
3601         if (change->modes_clear & channel->modes & MODE_KEY)
3602             mod_chanmode_append(&chbuf, 'k', channel->key);
3603         if (change->modes_clear & channel->modes & MODE_UPASS)
3604             mod_chanmode_append(&chbuf, 'U', channel->upass);
3605         if (change->modes_clear & channel->modes & MODE_APASS)
3606             mod_chanmode_append(&chbuf, 'A', channel->apass);
3607     }
3608     for (arg = 0; arg < change->argc; ++arg) {
3609         if (!(change->args[arg].mode & MODE_REMOVE))
3610             continue;
3611         if (mode != '-')
3612             chbuf.modes[chbuf.modes_used++] = mode = '-';
3613         switch (change->args[arg].mode & ~MODE_REMOVE) {
3614         case MODE_BAN:
3615             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3616             break;
3617         case MODE_EXEMPT:
3618             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3619             break;
3620         default:
3621             if (change->args[arg].mode & MODE_CHANOP)
3622                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3623             if (change->args[arg].mode & MODE_HALFOP)
3624                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3625             if (change->args[arg].mode & MODE_VOICE)
3626                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3627             break;
3628         }
3629     }
3630
3631     /* Then set them */
3632     chbuf.is_add = 1;
3633     if (change->modes_set) {
3634         if (mode != '+')
3635             chbuf.modes[chbuf.modes_used++] = mode = '+';
3636 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3637         DO_MODE_CHAR(PRIVATE, 'p');
3638         DO_MODE_CHAR(SECRET, 's');
3639         DO_MODE_CHAR(MODERATED, 'm');
3640         DO_MODE_CHAR(TOPICLIMIT, 't');
3641         DO_MODE_CHAR(INVITEONLY, 'i');
3642         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3643         DO_MODE_CHAR(DELAYJOINS, 'D');
3644         DO_MODE_CHAR(REGONLY, 'r');
3645         DO_MODE_CHAR(NOCOLORS, 'c');
3646         DO_MODE_CHAR(NOCTCPS, 'C');
3647         DO_MODE_CHAR(STRIPCOLOR, 'S');
3648         DO_MODE_CHAR(MODUNREG, 'M');
3649         DO_MODE_CHAR(NONOTICE, 'N');
3650         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3651         DO_MODE_CHAR(NOAMSG, 'T');
3652         DO_MODE_CHAR(OPERSONLY, 'O');
3653         DO_MODE_CHAR(REGISTERED, 'z');
3654         DO_MODE_CHAR(SSLONLY, 'Z');
3655         DO_MODE_CHAR(HIDEMODE, 'L');
3656 #undef DO_MODE_CHAR
3657         if(change->modes_set & MODE_KEY)
3658             mod_chanmode_append(&chbuf, 'k', change->new_key);
3659         if (change->modes_set & MODE_UPASS)
3660             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3661         if (change->modes_set & MODE_APASS)
3662             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3663         if(change->modes_set & MODE_LIMIT) {
3664             sprintf(int_buff, "%d", change->new_limit);
3665             mod_chanmode_append(&chbuf, 'l', int_buff);
3666         }
3667     }
3668     for (arg = 0; arg < change->argc; ++arg) {
3669         if (change->args[arg].mode & MODE_REMOVE)
3670             continue;
3671         if (mode != '+')
3672             chbuf.modes[chbuf.modes_used++] = mode = '+';
3673         switch (change->args[arg].mode) {
3674         case MODE_BAN:
3675             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3676             break;
3677         case MODE_EXEMPT:
3678             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3679             break;
3680         default:
3681             if (change->args[arg].mode & MODE_CHANOP)
3682                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3683             if (change->args[arg].mode & MODE_HALFOP)
3684                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3685             if (change->args[arg].mode & MODE_VOICE)
3686                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3687             break;
3688         }
3689     }
3690
3691     /* Flush the buffer and apply changes locally */
3692     if (chbuf.modes_used > 0) {
3693         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3694         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3695         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3696     }
3697     mod_chanmode_apply(who, channel, change);
3698 }
3699
3700 char *
3701 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3702 {
3703     unsigned int used = 0;
3704     assert(change->argc <= change->alloc_argc);
3705     if (change->modes_clear) {
3706         outbuff[used++] = '-';
3707 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3708         DO_MODE_CHAR(PRIVATE, 'p');
3709         DO_MODE_CHAR(SECRET, 's');
3710         DO_MODE_CHAR(MODERATED, 'm');
3711         DO_MODE_CHAR(TOPICLIMIT, 't');
3712         DO_MODE_CHAR(INVITEONLY, 'i');
3713         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3714         DO_MODE_CHAR(LIMIT, 'l');
3715         DO_MODE_CHAR(KEY, 'k');
3716         DO_MODE_CHAR(UPASS, 'U');
3717         DO_MODE_CHAR(APASS, 'A');
3718         DO_MODE_CHAR(DELAYJOINS, 'D');
3719         DO_MODE_CHAR(REGONLY, 'r');
3720         DO_MODE_CHAR(NOCOLORS, 'c');
3721         DO_MODE_CHAR(NOCTCPS, 'C');
3722         DO_MODE_CHAR(STRIPCOLOR, 'S');
3723         DO_MODE_CHAR(MODUNREG, 'M');
3724         DO_MODE_CHAR(NONOTICE, 'N');
3725         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3726         DO_MODE_CHAR(NOAMSG, 'T');
3727         DO_MODE_CHAR(OPERSONLY, 'O');
3728         DO_MODE_CHAR(REGISTERED, 'z');
3729         DO_MODE_CHAR(SSLONLY, 'Z');
3730         DO_MODE_CHAR(HIDEMODE, 'L');
3731 #undef DO_MODE_CHAR
3732     }
3733     if (change->modes_set) {
3734         outbuff[used++] = '+';
3735 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3736         DO_MODE_CHAR(PRIVATE, 'p');
3737         DO_MODE_CHAR(SECRET, 's');
3738         DO_MODE_CHAR(MODERATED, 'm');
3739         DO_MODE_CHAR(TOPICLIMIT, 't');
3740         DO_MODE_CHAR(INVITEONLY, 'i');
3741         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3742         DO_MODE_CHAR(DELAYJOINS, 'D');
3743         DO_MODE_CHAR(REGONLY, 'r');
3744         DO_MODE_CHAR(NOCOLORS, 'c');
3745         DO_MODE_CHAR(NOCTCPS, 'C');
3746         DO_MODE_CHAR(STRIPCOLOR, 'S');
3747         DO_MODE_CHAR(MODUNREG, 'M');
3748         DO_MODE_CHAR(NONOTICE, 'N');
3749         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3750         DO_MODE_CHAR(NOAMSG, 'T');
3751         DO_MODE_CHAR(OPERSONLY, 'O');
3752         DO_MODE_CHAR(REGISTERED, 'z');
3753         DO_MODE_CHAR(SSLONLY, 'Z');
3754         DO_MODE_CHAR(HIDEMODE, 'L');
3755 #undef DO_MODE_CHAR
3756         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3757         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3758         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3759             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3760             break;
3761
3762         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3763             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3764             break;
3765         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3766             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3767             break;
3768         case MODE_KEY|MODE_APASS|MODE_UPASS:
3769             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3770             break;
3771
3772         case MODE_KEY|MODE_APASS:
3773             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3774             break;
3775         case MODE_KEY|MODE_UPASS:
3776             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3777             break;
3778         case MODE_KEY|MODE_LIMIT:
3779             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3780             break;
3781
3782         case MODE_LIMIT|MODE_UPASS:
3783             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3784             break;
3785         case MODE_LIMIT|MODE_APASS:
3786             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3787             break;
3788         case MODE_APASS|MODE_UPASS:
3789             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3790
3791         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3792             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3793             break;
3794
3795         case MODE_APASS:
3796             used += sprintf(outbuff+used, "A %s", change->new_apass);
3797             break;
3798         case MODE_UPASS:
3799             used += sprintf(outbuff+used, "U %s", change->new_upass);
3800             break;
3801         case MODE_KEY:
3802             used += sprintf(outbuff+used, "k %s", change->new_key);
3803             break;
3804         case MODE_LIMIT:
3805             used += sprintf(outbuff+used, "l %d", change->new_limit);
3806             break;
3807         }
3808     }
3809     outbuff[used] = 0;
3810     return outbuff;
3811 }
3812
3813 static int
3814 clear_chanmode(struct chanNode *channel, const char *modes)
3815 {
3816     unsigned int cleared;
3817
3818     for (cleared = 0; *modes; modes++) {
3819         switch (*modes) {
3820         case 'o': cleared |= MODE_CHANOP; break;
3821         case 'h': cleared |= MODE_HALFOP; break;
3822         case 'v': cleared |= MODE_VOICE; break;
3823         case 'p': cleared |= MODE_PRIVATE; break;
3824         case 's': cleared |= MODE_SECRET; break;
3825         case 'm': cleared |= MODE_MODERATED; break;
3826         case 't': cleared |= MODE_TOPICLIMIT; break;
3827         case 'i': cleared |= MODE_INVITEONLY; break;
3828         case 'n': cleared |= MODE_NOPRIVMSGS; break;
3829         case 'k':
3830             cleared |= MODE_KEY;
3831             channel->key[0] = '\0';
3832             break;
3833         case 'A':
3834             cleared |= MODE_APASS;
3835             channel->apass[0] = '\0';
3836             break;
3837         case 'U':
3838             cleared |= MODE_UPASS;
3839             channel->upass[0] = '\0';
3840             break;
3841         case 'l':
3842             cleared |= MODE_LIMIT;
3843             channel->limit = 0;
3844             break;
3845         case 'b': cleared |= MODE_BAN; break;
3846         case 'e': cleared |= MODE_EXEMPT; break;
3847         case 'D': cleared |= MODE_DELAYJOINS; break;
3848         case 'r': cleared |= MODE_REGONLY; break;
3849         case 'c': cleared |= MODE_NOCOLORS; break;
3850         case 'C': cleared |= MODE_NOCTCPS; break;
3851         case 'S': cleared |= MODE_STRIPCOLOR; break;
3852         case 'M': cleared |= MODE_MODUNREG; break;
3853         case 'N': cleared |= MODE_NONOTICE; break;
3854         case 'Q': cleared |= MODE_NOQUITMSGS; break;
3855         case 'T': cleared |= MODE_NOAMSG; break;
3856         case 'O': cleared |= MODE_OPERSONLY; break;
3857         case 'a': cleared |= MODE_ADMINSONLY; break;
3858         case 'z': cleared |= MODE_REGISTERED; break;
3859         case 'Z': cleared |= MODE_SSLONLY; break;
3860         case 'L': cleared |= MODE_HIDEMODE; break;
3861         }
3862     }
3863
3864     if (!cleared)
3865         return 1;
3866
3867     /* Remove simple modes. */
3868     channel->modes &= ~cleared;
3869
3870     /* If removing bans, kill 'em all. */
3871     if ((cleared & MODE_BAN) && channel->banlist.used) {
3872         unsigned int i;
3873         for (i=0; i<channel->banlist.used; i++)
3874             free(channel->banlist.list[i]);
3875         channel->banlist.used = 0;
3876     }
3877
3878     /* If removing exempts, kill 'em all. */
3879     if ((cleared & MODE_EXEMPT) && channel->exemptlist.used) {
3880         unsigned int i;
3881         for (i=0; i<channel->exemptlist.used; i++)
3882             free(channel->exemptlist.list[i]);
3883         channel->exemptlist.used = 0;
3884     }
3885
3886     /* Removed member modes. */
3887     if ((cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3888         int mask = ~(cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3889         unsigned int i;
3890
3891         for (i = 0; i < channel->members.used; i++)
3892             channel->members.list[i]->modes &= mask;
3893     }
3894
3895     return 1;
3896 }
3897
3898 void
3899 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3900 {
3901     unsigned int numeric = user->num_local;
3902     if (numeric >= num_privmsg_funcs) {
3903         int newnum = numeric + 8, ii;
3904         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3905         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3906             privmsg_funcs[ii] = NULL;
3907         num_privmsg_funcs = newnum;
3908     }
3909     if (privmsg_funcs[numeric])
3910         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3911     privmsg_funcs[numeric] = handler;
3912 }
3913
3914 void
3915 unreg_privmsg_func(struct userNode *user)
3916 {
3917     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3918         return; /* this really only works with users */
3919
3920     privmsg_funcs[user->num_local] = NULL;
3921 }
3922
3923
3924 void
3925 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3926 {
3927     unsigned int numeric = user->num_local;
3928     if (numeric >= num_notice_funcs) {
3929         int newnum = numeric + 8, ii;
3930         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3931         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3932             privmsg_funcs[ii] = NULL;
3933         num_notice_funcs = newnum;
3934     }
3935     if (notice_funcs[numeric])
3936         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3937     notice_funcs[numeric] = handler;
3938 }
3939
3940 void
3941 unreg_notice_func(struct userNode *user)
3942 {
3943     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3944         return; /* this really only works with users */
3945
3946     notice_funcs[user->num_local] = NULL;
3947 }
3948
3949 static void
3950 send_burst(void)
3951 {
3952     unsigned int i, hop, max_hop=1;
3953     dict_iterator_t it;
3954
3955     /* burst (juped) servers, closest first (except self, which is sent already) */
3956     for (i=0; i<ArrayLength(servers_num); i++)
3957         if (servers_num[i] && servers_num[i]->hops > max_hop)
3958             max_hop = servers_num[i]->hops;
3959     for (hop=1; hop<=max_hop; hop++) {
3960         for (i=0;i<ArrayLength(servers_num);i++) {
3961             if (servers_num[i]
3962                 && (servers_num[i]->hops == hop)
3963                 && (servers_num[i] != self->uplink))
3964                 irc_server(servers_num[i]);
3965         }
3966     }
3967
3968     /* burst local nicks */
3969     for (i=0; i<=self->num_mask; i++)
3970         if (self->users[i])
3971             irc_user(self->users[i]);
3972
3973     /* build dict of unbursted channel names (just copy existing channels) */
3974     unbursted_channels = dict_new();
3975     for (it = dict_first(channels); it; it = iter_next(it))
3976         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3977 }
3978
3979 /*
3980  * Oplevel parsing
3981  */
3982 static int
3983 parse_oplevel(char *str)
3984 {
3985     int oplevel = 0;
3986     while (isdigit(*str))
3987         oplevel = oplevel * 10 + *str++ - '0';
3988     return oplevel;
3989 }
3990