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     unsigned int ii;
1370
1371     if (!(sender = GetServerH(origin)))
1372         return 0;
1373     if (sender == self->uplink) {
1374         cManager.uplink->state = CONNECTED;
1375         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1376             irc_burst(iter_data(it));
1377         dict_delete(unbursted_channels);
1378         unbursted_channels = NULL;
1379         irc_eob();
1380         irc_eob_ack();
1381
1382         /* now that we know who our uplink is,
1383          * we can center the routing map and activate auto-routing.
1384          */
1385         //activate_routing(NULL, NULL, NULL);
1386         routing_init();
1387     }
1388     sender->self_burst = 0;
1389     recalc_bursts(sender);
1390     for (ii=0; ii<slf_used; ii++)
1391         slf_list[ii](sender);
1392     /* let auto-routing figure out if we were
1393      * wating on this server to link a child to it */
1394     /* DONT call this if uplink is _US_ */
1395     if(sender->uplink != self)
1396         routing_handle_connect(sender->name, sender->uplink->name);
1397     return 1;
1398 }
1399
1400 static CMD_FUNC(cmd_eob_ack)
1401 {
1402     extern time_t burst_begin;
1403
1404     if (GetServerH(origin) == self->uplink) {
1405         burst_length = now - burst_begin;
1406         self->self_burst = self->burst = 0;
1407     }
1408     cManager.uplink->state = CONNECTED;
1409     return 1;
1410 }
1411
1412 static CMD_FUNC(cmd_rping)
1413 {
1414     struct server *dest;
1415
1416     if (!(dest = GetServerN(argv[1])))
1417         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1418
1419     if (dest == self)
1420         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1421
1422     return 1;
1423 }
1424
1425 static CMD_FUNC(cmd_ping)
1426 {
1427     struct server *srv;
1428     struct userNode *un;
1429
1430     if (argc > 3)
1431         irc_pong_asll(argv[2], argv[3]);
1432     else if ((srv = GetServerH(origin)))
1433         irc_pong(self->name, srv->numeric);
1434     else if ((un = GetUserH(origin)))
1435         irc_pong(self->name, un->numeric);
1436     else
1437         irc_pong(self->name, origin);
1438
1439     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1440     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1441     timeq_add(now + ping_freq, timed_send_ping, 0);
1442     received_ping();
1443     return 1;
1444 }
1445
1446 static CMD_FUNC(cmd_error_nick)
1447 {
1448     /* Go back to original IRC length .. and try to reconnect :/ */
1449     change_nicklen(9);
1450     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1451     return 1;
1452 }
1453
1454 struct create_desc {
1455     struct userNode *user;
1456     time_t when;
1457 };
1458
1459 static void
1460 join_helper(struct chanNode *chan, void *data)
1461 {
1462     struct create_desc *cd = data;
1463     AddChannelUser(cd->user, chan);
1464 }
1465
1466 static void
1467 create_helper(char *name, void *data)
1468 {
1469     struct create_desc *cd = data;
1470
1471     if (!strcmp(name, "0")) {
1472         while (cd->user->channels.used > 0)
1473             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1474         return;
1475     }
1476
1477     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1478 }
1479
1480 static CMD_FUNC(cmd_create)
1481 {
1482     struct create_desc cd;
1483     struct userNode *user;
1484
1485     if ((argc < 3) || !(user = GetUserH(origin)))
1486         return 0;
1487     cd.user = user;
1488     cd.when = atoi(argv[2]);
1489     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1490     return 1;
1491 }
1492
1493 static CMD_FUNC(cmd_join)
1494 {
1495     struct create_desc cd;
1496
1497     if (!(cd.user = GetUserH(origin)))
1498         return 0;
1499     if (argc < 2)
1500         return 0;
1501     else if (argc < 3)
1502         cd.when = now;
1503     else
1504         cd.when = atoi(argv[2]);
1505     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1506     return 1;
1507 }
1508
1509 static CMD_FUNC(cmd_svsjoin)
1510 {
1511     struct create_desc cd;
1512
1513     if (!(cd.user = GetUserH(argv[1])))
1514         return 0;
1515     if (argc < 3)
1516         return 0;
1517     else if (argc < 4)
1518         cd.when = now;
1519     else
1520         cd.when = atoi(argv[3]);
1521     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1522     return 1;
1523 }
1524
1525 static CMD_FUNC(cmd_pong)
1526 {
1527     if (argc < 3)
1528         return 0;
1529     if (!strcmp(argv[2], self->name)) {
1530         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1531         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1532         timeq_add(now + ping_freq, timed_send_ping, 0);
1533         received_ping();
1534     }
1535     return 1;
1536 }
1537
1538 static CMD_FUNC(cmd_nick)
1539 {
1540     struct userNode *user;
1541     if ((user = GetUserH(origin))) {
1542         /* nick change (since the source is a user numeric) */
1543         if (argc < 2)
1544             return 0;
1545         NickChange(user, argv[1], 1);
1546     } else {
1547         struct server *serv;
1548         struct userNode *nuser;
1549         char modes[MAXLEN];
1550         /* new nick */
1551         if (argc < 9)
1552             return 0;
1553         serv = GetServerH(origin);
1554         if (argc > 9)
1555             unsplit_string(argv+6, argc-9, modes);
1556         else
1557             strcpy(modes, "+");
1558         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1559     }
1560     return 1;
1561 }
1562
1563 static CMD_FUNC(cmd_account)
1564 {
1565     struct userNode *user;
1566     struct server *server;
1567     struct handle_info *hi;
1568
1569     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1570         return 0; /* Origin must be server. */
1571
1572     /* This next line appears to tremple origin.. why? */
1573     user = GetUserN(argv[1]);
1574     if (!user)
1575         return 1; /* A QUIT probably passed the ACCOUNT. */
1576
1577     if(!extended_accounts) /* any need for this function without? */
1578         return 1;
1579
1580     if(!strcmp(argv[2],"C"))
1581     {
1582         if((hi = loc_auth(argv[4], argv[5], NULL)))
1583         {
1584             /* Return a AC A */
1585             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1586
1587                         log_module(MAIN_LOG, LOG_DEBUG, "loc_auth: %s\n", user->nick);
1588          }
1589         else
1590         {
1591             /* Return a AC D */
1592             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1593         }
1594         return 1;
1595     }
1596     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1597     {
1598         if((hi = loc_auth(argv[5], argv[6], argv[4] )))
1599         {
1600             /* Return a AC A */
1601             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1602         }
1603         else
1604         {
1605             /* Return a AC D */
1606             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1607         }
1608         return 1;
1609     }
1610     else if(!strcmp(argv[2],"R"))
1611        call_account_func(user, argv[3]);
1612     else
1613         call_account_func(user, argv[2]); /* For backward compatability */
1614     return 1;
1615 }
1616
1617 static CMD_FUNC(cmd_fakehost)
1618 {
1619     struct userNode *user;
1620
1621     if ((argc < 3) || !origin || !GetServerH(origin))
1622         return 0;
1623     if (!(user = GetUserN(argv[1])))
1624         return 1;
1625     assign_fakehost(user, argv[2], 0);
1626     return 1;
1627 }
1628
1629 static struct {
1630   char        *name;
1631   unsigned int priv;
1632 } privtab[] = {
1633 #define P(priv)         { #priv, PRIV_ ## priv }
1634   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1635   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1636   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1637   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1638   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1639   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1640   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1641   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1642   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1643   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1644   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS), P(DISPLAY_MODE),
1645   P(FREEFORM),       P(REMOVE),         P(SPAMFILTER),
1646 #undef P
1647   { 0, 0 }
1648 };
1649
1650 char *client_report_privs(struct userNode *client)
1651 {
1652   int i;
1653
1654   privbuf[0] = '\0';
1655   for (i = 0; privtab[i].name; i++) {
1656     if (HasPriv(client, privtab[i].priv)) {
1657       strcat(privbuf, privtab[i].name);
1658       strcat(privbuf, " ");
1659     }
1660   }
1661
1662   privbuf[strlen(privbuf)] = 0;
1663
1664   return privbuf;
1665 }
1666
1667 int clear_privs(struct userNode *who) {
1668   int i = 0;
1669   assert(0 != who);
1670
1671   for (i = 0; privtab[i].name; i++)
1672     RevokePriv(who, privtab[i].priv);
1673
1674   return 0;
1675 }
1676
1677 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1678  int i = 0;
1679  assert(0 != priv);
1680  assert(0 != who);
1681
1682   for (i = 0; privtab[i].name; i++) {
1683     if (0 == strcmp(privtab[i].name, priv)) {
1684       if (what == PRIV_ADD)
1685         GrantPriv(who, privtab[i].priv);
1686       else if (what == PRIV_DEL) {
1687         RevokePriv(who, privtab[i].priv);
1688       }
1689     }
1690   }
1691   return 0;
1692 }
1693
1694 int check_priv(char *priv)
1695 {
1696   int i;
1697
1698   for (i = 0; privtab[i].name; i++) {
1699     if (0 == strcmp(privtab[i].name, priv)) {
1700       return 1;
1701     }
1702   }
1703   return 0;
1704 }
1705
1706 void
1707 irc_privs(struct userNode *target, char *flag, int add)
1708 {
1709     client_modify_priv_by_name(target, flag, add);
1710     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1711 }
1712
1713 static CMD_FUNC(cmd_privs)
1714 {
1715     char *tstr = NULL;
1716     char buf[512] = "";
1717     char *p = 0;
1718     char *tmp;
1719
1720     int what = PRIV_ADD;
1721     int type = 0;
1722
1723     unsigned int i;
1724
1725     struct server *sender;
1726     struct userNode *user;
1727
1728
1729     tstr = conf_get_data("server/type", RECDB_QSTRING);
1730     if(tstr)
1731         type = atoi(tstr);
1732
1733
1734     if (!(sender = GetServerH(origin))) { /* from oper */
1735         return 1; /* ignore as no services have privs set */
1736     } else { /* from server */
1737         if (type < 5)
1738             return 1; /* silently ignore */
1739
1740         user = argc > 1 ? GetUserN(argv[1]) : NULL;
1741
1742         if (!user)
1743             return 0;
1744
1745         for (i=1; i<argc; i++) {
1746             strcat(buf, argv[i]);
1747             strcat(buf, " ");
1748         }
1749
1750         for (i = 2; i < argc; i++) {
1751             if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1752             if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1753             for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1754                  tmp = x3_strtok(&p, NULL, ",")) {
1755                 if (!strcmp(tmp, "PRIV_NONE")) {
1756                     clear_privs(user);
1757                     break;
1758                 } else
1759                     client_modify_priv_by_name(user, tmp, what);
1760             }
1761         }
1762     }
1763     return 1;
1764 }
1765
1766 static CMD_FUNC(cmd_burst)
1767 {
1768     extern int rel_age;
1769     char modes[MAXLEN], *members = "";
1770     static char exemptlist[MAXLEN], banlist[MAXLEN];
1771     unsigned int next = 3, res = 1;
1772     int ctype = 0, echeck = 0, bcheck = 0;
1773     struct chanData *cData;
1774     struct chanNode *cNode;
1775     struct userNode *un;
1776     struct modeNode *mNode;
1777     long mode;
1778     int oplevel = -1;
1779     char *user, *end, sep;
1780     time_t in_timestamp;
1781     char* parm = NULL;
1782
1783     if (argc < 3)
1784         return 0;
1785     modes[0] = 0;
1786
1787     exemptlist[0] = 0;
1788     banlist[0] = 0;
1789
1790     while (next < argc) {
1791         switch (argv[next][0]) {
1792         case '+': {
1793             const char *pos;
1794             int n_modes;
1795             for (pos=argv[next], n_modes = 1; *pos; pos++)
1796                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1797                     || (*pos == 'U'))
1798                     n_modes++;
1799             if (next + n_modes > argc)
1800                 n_modes = argc - next;
1801             unsplit_string(argv+next, n_modes, modes);
1802             next += n_modes;
1803             break;
1804         }
1805         case '%': {
1806             for(parm = mysep(&argv[next], " "); /* parm = first param */
1807                   parm;   /* While param is not null */
1808                   parm = mysep(&argv[next], " ")  /* parm = next param */
1809                )
1810             {
1811               switch (parm[0]) {
1812                 case '%': {
1813                   ctype = 1;
1814                   break;
1815                 }
1816                 case '~': {
1817                   ctype = 2;
1818                   break;
1819                 }
1820                 default: {
1821                   break;
1822                 }
1823               }
1824               if (ctype == 1) {
1825                 if (bcheck == 0) {
1826                   /* strip % char off start of very first ban */
1827                   if (strlen(parm) > 1) {
1828                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1829                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1830                   }
1831                   bcheck = 1;
1832                 } else {
1833                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1834                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1835                 }
1836               } else if (ctype == 2) {
1837                 if (echeck == 0) {
1838                    echeck = 1;
1839                 } else {
1840                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1841                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1842                 }
1843               }
1844             }
1845             next++;
1846             break;
1847         }
1848         default: members = argv[next++]; break;
1849       }
1850     }
1851
1852     in_timestamp = atoi(argv[2]);
1853     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1854         cNode->timestamp = in_timestamp;
1855         dict_remove(unbursted_channels, cNode->name);
1856         irc_burst(cNode);
1857     }
1858     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1859     cData = cNode->channel_info;
1860
1861     if (!cData) {
1862         if (cNode->modes & MODE_REGISTERED) {
1863             irc_join(opserv, cNode);
1864             irc_mode(opserv, cNode, "-z");
1865             irc_part(opserv, cNode, "");
1866         }
1867     }
1868
1869     /* Burst channel members in now. */
1870     for (user = members, sep = *members, mode = 0; sep; user = end) {
1871         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1872         sep = *end++; end[-1] = 0;
1873         if (sep == ':') {
1874             mode = 0;
1875             while ((sep = *end++)) {
1876                 if (sep == 'o') {
1877                     mode |= MODE_CHANOP;
1878                     oplevel = -1;
1879                 } else if (sep == 'h') {
1880                     mode |= MODE_HALFOP;
1881                     oplevel = -1;
1882                 } else if (sep == 'v') {
1883                     mode |= MODE_VOICE;
1884                     oplevel = -1;
1885                 } else if (isdigit(sep)) {
1886                     mode |= MODE_CHANOP;
1887                     if (oplevel >= 0)
1888                         oplevel += parse_oplevel(end);
1889                     else
1890                         oplevel = parse_oplevel(end);
1891                     while (isdigit(*end)) end++;
1892                 } else
1893                     break;
1894             }
1895             if (rel_age < 0)
1896                 mode = 0;
1897         }
1898         if (!(un = GetUserN(user))) {
1899             res = 0;
1900             continue;
1901         }
1902         if ((mNode = AddChannelUser(un, cNode))) {
1903             mNode->modes = mode;
1904             mNode->oplevel = oplevel;
1905         }
1906     }
1907
1908     return res;
1909 }
1910
1911 /* TODO:
1912  * This is a stub that doesn't actually do anything. It should be completed
1913  * so that bans on *!*@markname.* match users as it does in nefarious
1914  */
1915 static CMD_FUNC(cmd_mark)
1916 {
1917     struct userNode *target;
1918     /*
1919      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1920      */
1921
1922     if(argc < 4)
1923         return 0;
1924     if(!strcasecmp(argv[2], "DNSBL")) {
1925         /* DNSBL <modes> */
1926         return 1;
1927     }
1928     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1929         /* DNSBL_DATA name */
1930         target = GetUserH(argv[1]);
1931         if(!target) {
1932             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1933             return 0;
1934         }
1935         target->mark = strdup(argv[3]);
1936         return 1;
1937
1938     }
1939     else if(!strcasecmp(argv[2], "CVERSION")) {
1940         /* DNSBL_DATA name */
1941         target = GetUserH(argv[1]);
1942         if(!target) {
1943             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1944             return 0;
1945         }
1946
1947         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1948         if(!version)
1949             version = "";
1950
1951         target->version_reply = strdup(version);
1952
1953         if(match_ircglob(version, "WebTV;*"))
1954             target->no_notice = true; /* webbies cant see notices */
1955
1956         return 1;
1957     }
1958     /* unknown type of mark */
1959     return 1;
1960 }
1961
1962 static CMD_FUNC(cmd_mode)
1963 {
1964     struct chanNode *cn;
1965     struct userNode *un;
1966     char *sethost; // sethost - reed/apples
1967     int i; // sethost - reed/apples
1968
1969     if (argc < 3)
1970         return 0;
1971     if (!IsChannelName(argv[1])) {
1972         un = GetUserH(argv[1]);
1973         if (!un) {
1974             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1975             return 0;
1976         }
1977         // sethost - reed/apples
1978         if (argc == 3)
1979         mod_usermode(un, argv[2]);
1980         else {
1981           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1982           i = 0;
1983           while((sethost[i++] = *argv[2]++));
1984           i--;
1985          sethost[i++] = ' ';
1986           while((sethost[i++] = *argv[3]++));
1987           mod_usermode(un, sethost); // sethost - reed/apples
1988         }
1989
1990         return 1;
1991     }
1992
1993     if (!(cn = GetChannel(argv[1]))) {
1994         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1995         return 0;
1996     }
1997     if ((un = GetUserH(origin))) {
1998         struct modeNode *mn;
1999         /* Update idle time for person setting the mode */
2000         if ((mn = GetUserMode(cn, un)))
2001             mn->idle_since = now;
2002     } else {
2003         /* If it came from a server, reset timestamp to re-sync. */
2004         cn->timestamp = atoi(argv[argc-1]);
2005     }
2006
2007     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
2008         const char *str;
2009         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2010         if (str) {
2011             char modes[MODELEN];
2012             struct userNode *opserv = GetUserH(str);
2013
2014             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
2015             irc_make_chanmode(cn, modes);
2016             irc_mode(opserv, cn, modes);
2017             irc_mode(opserv, cn, DefConChanModes);
2018         }
2019         return 1;
2020     }
2021
2022
2023     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
2024 }
2025
2026 static CMD_FUNC(cmd_opmode)
2027 {
2028     struct chanNode *cn;
2029     struct userNode *un;
2030
2031     if (argc < 3)
2032         return 0;
2033
2034     if (!(cn = GetChannel(argv[1]))) {
2035         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2036         return 0;
2037     }
2038     if (!(un = GetUserH(origin))) {
2039         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
2040         return 0;
2041     }
2042     if (!IsOper(un)) {
2043         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
2044         return 0;
2045     }
2046
2047     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
2048 }
2049
2050 static int clear_chanmode(struct chanNode *channel, const char *modes);
2051
2052 static CMD_FUNC(cmd_clearmode)
2053 {
2054     struct chanNode *cn;
2055     struct userNode *un;
2056
2057     if (argc < 3)
2058         return 0;
2059
2060     if (!(cn = GetChannel(argv[1]))) {
2061         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2062         return 0;
2063     }
2064     if (!(un = GetUserH(origin))) {
2065         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
2066         return 0;
2067     }
2068     if (!IsOper(un)) {
2069         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
2070         return 0;
2071     }
2072
2073     return clear_chanmode(cn, argv[2]);
2074 }
2075
2076 static CMD_FUNC(cmd_topic)
2077 {
2078     struct chanNode *cn;
2079     time_t chan_ts, topic_ts;
2080     struct userNode *user;
2081
2082     if (argc < 3)
2083         return 0;
2084     if (!(cn = GetChannel(argv[1]))) {
2085         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
2086         return 0;
2087     }
2088
2089
2090     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
2091         user = GetUserH(origin);
2092         chan_ts = atoi(argv[2]);
2093         topic_ts = atoi(argv[3]);
2094     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2095         user = GetUserH(strtok(argv[2], "!"));
2096         chan_ts = atoi(argv[3]);
2097         topic_ts = atoi(argv[4]);
2098     } else {                      /* Regular IRCu (No Topic Bursting)*/
2099         user = GetUserH(origin);
2100         chan_ts = cn->timestamp;
2101         topic_ts = now;
2102     }
2103
2104     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2105     cn->topic_time = topic_ts;
2106     return 1;
2107 }
2108
2109 static CMD_FUNC(cmd_num_topic)
2110 {
2111     struct chanNode *cn;
2112
2113     if (!argv[0])
2114         return 0; /* huh? */
2115     if (argv[2]) {
2116         cn = GetChannel(argv[2]);
2117         if (!cn) {
2118             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2119             return 0;
2120         }
2121     } else
2122         return 0;
2123
2124     switch (atoi(argv[0])) {
2125     case 331:
2126         cn->topic_time = 0;
2127         break;  /* no topic */
2128     case 332:
2129         if (argc < 4)
2130             return 0;
2131         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2132         break;
2133     case 333:
2134         if (argc < 5)
2135             return 0;
2136         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2137         cn->topic_time = atoi(argv[4]);
2138         break;
2139     default:
2140         return 0; /* should never happen */
2141     }
2142     return 1;
2143 }
2144
2145 static CMD_FUNC(cmd_num_gline)
2146 {
2147     if (argc < 7) {
2148         if (argc < 6)
2149             return 0;
2150         else
2151             gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2152     } else {
2153         if (!strcmp(argv[5], "+"))
2154           gline_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0, 0);
2155     }
2156     return 1;
2157 }
2158
2159 static CMD_FUNC(cmd_num_shun)
2160 {
2161     if (argc < 7) {
2162         if (argc < 6)
2163             return 0;
2164         else
2165             shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2166     } else {
2167         if (!strcmp(argv[5], "+"))
2168             shun_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0);
2169     }
2170     return 1;
2171 }
2172
2173 static CMD_FUNC(cmd_quit)
2174 {
2175     struct userNode *user;
2176     if (argc < 2)
2177         return 0;
2178     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2179      * call DelUser unless we have the user in our grasp. */
2180     if ((user = GetUserH(origin)))
2181         DelUser(user, NULL, false, argv[1]);
2182     return 1;
2183 }
2184
2185 static CMD_FUNC(cmd_kill)
2186 {
2187     struct userNode *user;
2188     if (argc < 2)
2189         return 0;
2190     user = GetUserN(argv[1]);
2191     if (!user) {
2192         /* If we get a KILL for a non-existent user, it could be a
2193          * Ghost response to a KILL we sent out earlier.  So we only
2194          * whine if the target is local.
2195          */
2196         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2197             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2198         return 0;
2199     }
2200
2201     if (IsLocal(user) && IsService(user)) {
2202         /* TODO: rate limit this so silly things don't happen. */
2203         ReintroduceUser(user);
2204         return 1;
2205     }
2206
2207     DelUser(user, NULL, false, argv[2]);
2208     return 1;
2209 }
2210
2211 static CMD_FUNC(cmd_svspart)
2212 {
2213     struct userNode *user;
2214
2215     if (argc < 3)
2216         return 0;
2217     user = GetUserN(argv[1]);
2218     if (!user)
2219         return 0;
2220     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2221     return 1;
2222 }
2223
2224 static CMD_FUNC(cmd_silence)
2225 {
2226     struct userNode *user;
2227     char *mask;
2228     char *new_mask;
2229     unsigned int i;
2230
2231     if (argc < 2)
2232         return 0;
2233
2234     user = GetUserN(argv[1]);
2235
2236     /* Sanity, go nuts if this happens */
2237     if (!user)
2238         return 0;
2239
2240     /*  We can safely ignore this if a user adding a silence is not
2241      *  ignored. However this brings up a TODO. If a user logs in and
2242      *  they have silences on the IRCd then we need to set them here
2243      *  somehow
2244      */
2245     if (!user->handle_info)
2246         return 1;
2247
2248     mask = argv[2];
2249
2250     if (*mask == '-') {
2251         for (i=0; i<user->handle_info->ignores->used; i++) {
2252             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2253                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2254         }
2255     } else {
2256         for (i=0; i<user->handle_info->ignores->used; i++) {
2257             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2258                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2259         }
2260
2261         new_mask = strdup(mask+1);
2262         string_list_append(user->handle_info->ignores, new_mask);
2263     }
2264     return 1;
2265 }
2266
2267 static CMD_FUNC(cmd_kick)
2268 {
2269     if (argc < 3)
2270         return 0;
2271     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2272     return 1;
2273 }
2274
2275 static CMD_FUNC(cmd_squit)
2276 {
2277     struct server *server;
2278     char *uplink;
2279
2280     if (argc < 4)
2281         return 0;
2282     if (!(server = GetServerH(argv[1])))
2283         return 0;
2284
2285     if (server == self->uplink) {
2286         /* Force a reconnect to the currently selected server. */
2287         cManager.uplink->tries = 0;
2288         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2289         close_socket();
2290         return 1;
2291     }
2292
2293     uplink = strdup(server->uplink->name);
2294     DelServer(server, 0, argv[3]);
2295     /* if its a pingout and pingout connecting is enabled
2296                or its a read error and readerror connecting is enabled
2297                or were doing a "N" and i need to connect that server somewhere */
2298     routing_handle_squit(argv[1], uplink, argv[3]);
2299     free(uplink);
2300     return 1;
2301 }
2302
2303 static CMD_FUNC(cmd_privmsg)
2304 {
2305     struct privmsg_desc pd;
2306     if (argc < 3)
2307         return 0;
2308     pd.user = GetUserH(origin);
2309     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2310         return 1;
2311
2312     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2313         const char *str;
2314         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2315         if (str)
2316             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2317         return 1;
2318     }
2319
2320     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2321         return 1; /* Silently Ignore */
2322
2323     pd.is_notice = 0;
2324     pd.text = argv[argc - 1];
2325     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2326
2327     return 1;
2328 }
2329
2330 static CMD_FUNC(cmd_notice)
2331 {
2332     struct privmsg_desc pd;
2333     struct server *srv;
2334     int nuser = 0;
2335
2336     if (argc != 3)
2337         return 0;
2338
2339     pd.user = GetUserH(origin);
2340     if(!pd.user)
2341         nuser = 1;
2342     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2343     }
2344     else {
2345         pd.is_notice = 1;
2346         pd.text = argv[2];
2347         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2348     }
2349
2350     srv = GetServerH(origin);
2351     if(srv) {
2352         char *sargv[MAXNUMPARAMS];
2353         int sargc;
2354
2355         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2356
2357         if(!strcasecmp(sargv[0], "Connect:")) {
2358             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2359             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2360                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2361             }
2362         }
2363         else if(!strcasecmp(sargv[0], "Link")) {
2364             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2365              *
2366              * :Link with laptop.afternet.org cancelled: Connection refused
2367              */
2368             if(!strcasecmp(sargv[3], "cancelled:")) {
2369                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2370             }
2371         }
2372     }
2373     return 1;
2374 }
2375
2376 static CMD_FUNC(cmd_away)
2377 {
2378     struct userNode *uNode;
2379
2380     uNode = GetUserH(origin);
2381     if (!uNode)
2382         return 1;
2383     if (argc < 2)
2384         uNode->modes &= ~FLAGS_AWAY;
2385     else
2386         uNode->modes |= FLAGS_AWAY;
2387     return 1;
2388 }
2389
2390 static CMD_FUNC(cmd_gline)
2391 {
2392     if (argc < 3)
2393         return 0;
2394     if (argv[2][0] == '+') {
2395         if (argc < 5)
2396             return 0;
2397         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2398         return 1;
2399     } else if (argv[2][0] == '-') {
2400         gline_remove(argv[2]+1, 0);
2401         return 1;
2402     } else
2403         return 0;
2404 }
2405
2406 static CMD_FUNC(cmd_sgline)
2407 {
2408     struct server *sender;
2409
2410     if (argc < 4)
2411         return 0;
2412
2413     if (!(sender = GetServerH(origin)))
2414         return 0;
2415
2416     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1, 0);
2417     return 1;
2418 }
2419
2420 static CMD_FUNC(cmd_sshun)
2421 {
2422     struct server *sender;
2423
2424     if (argc < 4)
2425         return 0;
2426
2427     if (!(sender = GetServerH(origin)))
2428         return 0;
2429
2430     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1);
2431     return 1;
2432 }
2433
2434 static CMD_FUNC(cmd_shun)
2435 {
2436     if (argc < 3)
2437         return 0;
2438     if (argv[2][0] == '+') {
2439         if (argc < 5)
2440             return 0;
2441         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2442         return 1;
2443     } else if (argv[2][0] == '-') {
2444         shun_remove(argv[2]+1, 0);
2445         return 1;
2446     } else
2447         return 0;
2448 }
2449
2450 static CMD_FUNC(cmd_svsnick)
2451 {
2452     struct userNode *target, *dest;
2453     if ((argc < 4)
2454         || !(target = GetUserN(argv[1]))
2455         || !IsLocal(target)
2456         || (dest = GetUserH(argv[2])))
2457         return 0;
2458     NickChange(target, argv[2], 0);
2459     return 1;
2460 }
2461
2462 void
2463 free_user(struct userNode *user)
2464 {
2465     free(user->nick);
2466     free(user);
2467 }
2468
2469 static void
2470 parse_cleanup(void)
2471 {
2472     unsigned int nn;
2473     free(of_list);
2474     free(privmsg_funcs);
2475     num_privmsg_funcs = 0;
2476     free(notice_funcs);
2477     num_notice_funcs = 0;
2478     free(mcf_list);
2479     dict_delete(irc_func_dict);
2480     for (nn=0; nn<dead_users.used; nn++)
2481         free_user(dead_users.list[nn]);
2482     userList_clean(&dead_users);
2483 }
2484
2485 static void
2486 p10_conf_reload(void) {
2487     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2488     his_servername = conf_get_data("server/his_servername", RECDB_QSTRING);
2489     his_servercomment = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2490 }
2491
2492 static void
2493 remove_unbursted_channel(struct chanNode *cNode) {
2494     if (unbursted_channels)
2495         dict_remove(unbursted_channels, cNode->name);
2496 }
2497
2498 void
2499 init_parse(void)
2500 {
2501     const char *str, *desc;
2502     int numnick, usermask, max_users;
2503     char numer[COMBO_NUMERIC_LEN+1];
2504
2505     /* read config items */
2506     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2507     extended_accounts = str ? enabled_string(str) : 1;
2508     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2509     ping_freq = str ? ParseInterval(str) : 120;
2510     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2511     ping_timeout = str ? ParseInterval(str) : 30;
2512     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2513     force_n2k = str ? enabled_string(str) : 1;
2514     str = conf_get_data("server/numeric", RECDB_QSTRING);
2515     if (!str) {
2516         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2517         exit(1);
2518     }
2519     numnick = atoi(str);
2520     str = conf_get_data("server/max_users", RECDB_QSTRING);
2521     max_users = str ? atoi(str) : 4096;
2522     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2523     usermask--;
2524     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2525         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2526     else
2527         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2528
2529     str = conf_get_data("server/hostname", RECDB_QSTRING);
2530     desc = conf_get_data("server/description", RECDB_QSTRING);
2531     if (!str || !desc) {
2532         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2533         exit(1);
2534     }
2535     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2536     conf_register_reload(p10_conf_reload);
2537
2538     irc_func_dict = dict_new();
2539     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2540     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2541     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2542     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2543     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2544     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2545     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2546     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2547     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2548     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2549     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2550     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2551     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2552     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2553     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2554     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2555     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2556     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2557     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2558     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2559     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2560     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2561     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2562     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2563     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2564     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2565     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2566     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2567     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2568     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2569     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2570     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2571     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2572     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2573     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2574     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2575     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2576     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2577     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2578     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2579     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2580     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2581     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2582     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2583     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2584     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2585     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2586     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2587     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2588     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2589     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2590     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2591     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2592     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2593     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2594     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2595     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2596     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2597     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2598     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2599     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2600     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2601     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2602     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2603     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2604     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2605     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2606     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2607     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2608     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2609     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2610     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2611     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2612     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2613     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2614     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2615     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2616     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2617     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2618     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2619     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2620     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2621
2622     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2623     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2624     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2625     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2626
2627     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2628      * Apparently to obliterate channels from any servers that think they
2629      * exist?
2630      */
2631     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2632     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2633     /* Ignore invites */
2634     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2635     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2636     /* DESYNCH is just informational, so ignore it */
2637     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2638     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2639     /* Ignore channel operator notices. */
2640     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2641     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2642     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2643     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2644     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2645     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2646     /* Ignore opers being silly. */
2647     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2648     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2649     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2650     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2651     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2652     /* Ignore dnsbl exemptions */
2653     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2654     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2655     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2656     /* ignore ALIST for now */
2657     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2658     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2659     /* ignore SPAMFILTER */
2660     dict_insert(irc_func_dict, TOK_SPAMFILTER, cmd_dummy);
2661     dict_insert(irc_func_dict, CMD_SPAMFILTER, cmd_dummy);
2662     /* Ignore remote luser */
2663     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2664     /* We have reliable clock!  Always!  Wraaa! */
2665     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2666     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2667
2668     /* ignore /trace and /motd commands targetted at us */
2669     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2670     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2671     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2672
2673     /* handle topics */
2674     dict_insert(irc_func_dict, "331", cmd_num_topic);
2675     dict_insert(irc_func_dict, "332", cmd_num_topic);
2676     dict_insert(irc_func_dict, "333", cmd_num_topic);
2677     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2678     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2679     /* ban list resetting */
2680     /* "stats g" responses */
2681     dict_insert(irc_func_dict, "230", cmd_dummy); /* ignore stats headers */
2682     dict_insert(irc_func_dict, "247", cmd_num_gline);
2683     dict_insert(irc_func_dict, "542", cmd_num_shun);
2684     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2685     /* other numeric responses we might get */
2686     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2687     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2688     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2689     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2690     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2691     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2692     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2693     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2694     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2695
2696     num_privmsg_funcs = 16;
2697     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2698     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2699
2700     num_notice_funcs = 16;
2701     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2702     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2703
2704     userList_init(&dead_users);
2705     reg_del_channel_func(remove_unbursted_channel);
2706     reg_exit_func(parse_cleanup);
2707     // reg_notice_func(opserv, check_ctcp);
2708 }
2709
2710 int
2711 parse_line(char *line, int recursive)
2712 {
2713     char *argv[MAXNUMPARAMS], *origin;
2714     int argc, cmd, res=0;
2715     cmd_func_t *func;
2716
2717     argc = split_line(line, true, MAXNUMPARAMS, argv);
2718     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2719     if (argc > cmd) {
2720         if (cmd) {
2721             if (argv[0][0] == ':') {
2722                 origin = argv[0]+1;
2723             } else if (!argv[0][1] || !argv[0][2]) {
2724                 struct server *sNode = GetServerN(argv[0]);
2725                 origin = sNode ? sNode->name : 0;
2726             } else {
2727                 struct userNode *uNode = GetUserN(argv[0]);
2728                 origin = uNode ? uNode->nick : 0;
2729             }
2730         } else
2731             origin = 0;
2732         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2733             res = func(origin, argc-cmd, argv+cmd);
2734     }
2735     if (!res) {
2736         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2737     } else if (!recursive) {
2738         unsigned int i;
2739         for (i=0; i<dead_users.used; i++)
2740             free_user(dead_users.list[i]);
2741         dead_users.used = 0;
2742     }
2743     return res;
2744 }
2745
2746 static void
2747 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2748 {
2749     char *j, old;
2750
2751     do {
2752         j = target_list;
2753         while (*j != 0 && *j != ',')
2754             j++;
2755         old = *j;
2756         *j = 0;
2757
2758         if (IsChannelName(target_list)
2759             || (target_list[0] == '0' && target_list[1] == '\0')) {
2760             struct chanNode *chan = GetChannel(target_list);
2761
2762             if (chan) {
2763                 if (cf)
2764                     cf(chan, data);
2765             } else {
2766                 if (nc)
2767                     nc(target_list, data);
2768             }
2769         } else {
2770             struct userNode *user;
2771             struct privmsg_desc *pd = data;
2772
2773             pd->is_qualified = 0;
2774             if (*target_list == '@') {
2775                 user = NULL;
2776             } else if (strchr(target_list, '@')) {
2777                 struct server *server;
2778
2779                 pd->is_qualified = 1;
2780                 user = GetUserH(strtok(target_list, "@"));
2781                 server = GetServerH(strtok(NULL, "@"));
2782
2783                 if (user && (user->uplink != server)) {
2784                     /* Don't attempt to index into any arrays
2785                        using a user's numeric on another server. */
2786                     user = NULL;
2787                 }
2788             } else {
2789                 user = GetUserN(target_list);
2790             }
2791
2792             if (user) {
2793                 if (uf)
2794                     uf(user, data);
2795             } else {
2796                 if (nu)
2797                     nu(target_list, data);
2798             }
2799         }
2800         target_list = j+1;
2801     } while (old == ',');
2802 }
2803
2804 static int
2805 get_local_numeric(void)
2806 {
2807     static unsigned int next_numeric = 0;
2808     if (self->clients > self->num_mask)
2809         return -1;
2810     while (self->users[next_numeric])
2811         if (++next_numeric > self->num_mask)
2812             next_numeric = 0;
2813     return next_numeric;
2814 }
2815
2816 static void
2817 make_numeric(struct server *svr, int local_num, char *outbuf)
2818 {
2819     int slen, llen;
2820
2821     if (force_n2k || svr->numeric[1]) {
2822         slen = 2;
2823         llen = 3;
2824     } else {
2825         slen = 1;
2826         llen = (local_num < 64*64) ? 2 : 3;
2827     }
2828     strncpy(outbuf, svr->numeric, slen);
2829     inttobase64(outbuf+slen, local_num, llen);
2830     outbuf[slen+llen] = 0;
2831 }
2832
2833 struct server *
2834 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link_time, const char *numeric, const char *description)
2835 {
2836     struct server* sNode;
2837     int slen, mlen;
2838
2839     if ((sNode = GetServerN(numeric))) {
2840         /* This means we're trying to re-add an existant server.
2841          * To be safe, we should forget the previous incarnation.
2842          * (And all its linked servers.)
2843          *
2844          * It usually only happens in replays when the original
2845          * had a ping timeout and the replay didn't (because
2846          * replaying a ping timeout invariably gets things wrong).
2847          */
2848         DelServer(sNode, 0, NULL);
2849     }
2850
2851     switch (strlen(numeric)) {
2852     case 5: slen = 2; mlen = 3; break;
2853     case 4: slen = 1; mlen = 3; break;
2854     case 3: slen = 1; mlen = 2; break;
2855     default:
2856         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2857         return NULL;
2858     }
2859
2860     sNode = calloc(1, sizeof(*sNode));
2861     sNode->uplink = uplink;
2862     safestrncpy(sNode->name, name, sizeof(sNode->name));
2863     sNode->num_mask = base64toint(numeric+slen, mlen);
2864     sNode->hops = hops;
2865     sNode->boot = boot;
2866     sNode->link_time = link_time;
2867     strncpy(sNode->numeric, numeric, slen);
2868     safestrncpy(sNode->description, description, sizeof(sNode->description));
2869     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2870     serverList_init(&sNode->children);
2871     if (sNode->uplink) {
2872         /* uplink may be NULL if we're just building ourself */
2873         serverList_append(&sNode->uplink->children, sNode);
2874     }
2875     servers_num[base64toint(numeric, slen)] = sNode;
2876     dict_insert(servers, sNode->name, sNode);
2877     return sNode;
2878 }
2879
2880 void DelServer(struct server* serv, int announce, const char *message)
2881 {
2882     unsigned int i;
2883
2884     /* If we receive an ERROR command before the SERVER
2885      * command a NULL server can be passed */
2886     if (!serv)
2887         return;
2888
2889     /* Hrm, what's the right way to SQUIT some other server?
2890      * (This code is only to handle killing juped servers.) */
2891     if (announce && (serv->uplink == self) && (serv != self->uplink))
2892         irc_squit(serv, message, NULL);
2893
2894     /* must recursively remove servers linked to this one first */
2895     for (i=serv->children.used;i>0;)
2896         if (serv->children.list[--i] != self)
2897             DelServer(serv->children.list[i], false, NULL);
2898
2899     /* clean up server's user hash tables */
2900     for (i=0;i<=serv->num_mask;i++)
2901         if (serv->users[i])
2902             DelUser(serv->users[i], NULL, false, "server delinked");
2903
2904     /* delete server */
2905     if (serv->uplink)
2906         serverList_remove(&serv->uplink->children, serv);
2907     if (serv == self->uplink)
2908         self->uplink = NULL;
2909     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2910     dict_remove(servers, serv->name);
2911     serverList_clean(&serv->children);
2912     free(serv->users);
2913     free(serv);
2914 }
2915
2916 struct userNode *
2917 AddLocalUser(const char *nick, const char *ident, const char *hostname, const char *desc, const char *modes)
2918 {
2919     char numeric[COMBO_NUMERIC_LEN+1];
2920     int local_num = get_local_numeric();
2921     time_t timestamp = now;
2922     struct userNode *old_user = GetUserH(nick);
2923
2924     if (!modes)
2925         modes = "+oik";
2926
2927     if (old_user) {
2928         if (IsLocal(old_user))
2929             return old_user;
2930         timestamp = old_user->timestamp - 1;
2931     }
2932     if (local_num == -1) {
2933         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2934         return 0;
2935     }
2936     if (!hostname)
2937         hostname = self->name;
2938     make_numeric(self, local_num, numeric);
2939     return AddUser(self, nick, ident, hostname, modes, numeric, desc, now, "AAAAAA");
2940 }
2941
2942 struct userNode *
2943 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2944 {
2945     char numeric[COMBO_NUMERIC_LEN+1];
2946     int local_num = get_local_numeric();
2947     time_t timestamp = now;
2948     struct userNode *old_user = GetUserH(nick);
2949
2950     if (old_user) {
2951         if (IsLocal(old_user))
2952             return old_user;
2953         timestamp = old_user->timestamp - 1;
2954     }
2955     if (local_num == -1) {
2956         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2957         return 0;
2958     }
2959     make_numeric(self, local_num, numeric);
2960     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2961 }
2962
2963 int
2964 is_valid_nick(const char *nick) {
2965     unsigned int ii;
2966     /* IRC has some of The Most Fucked-Up ideas about character sets
2967      * in the world.. */
2968     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2969         return 0;
2970     for (ii = 0; nick[ii]; ++ii)
2971         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2972             return 0;
2973     if (strlen(nick) > nicklen)
2974         return 0;
2975     return 1;
2976 }
2977
2978 static struct userNode*
2979 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)
2980 {
2981     struct userNode *oldUser, *uNode;
2982     unsigned int n, ignore_user, dummy;
2983     char *tstr;
2984     int type;
2985
2986     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2987         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", (void*)uplink, nick, numeric);
2988         return NULL;
2989     }
2990
2991     if (!uplink) {
2992         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", (void*)uplink, nick, numeric);
2993         return NULL;
2994     }
2995
2996     if (uplink != GetServerN(numeric)) {
2997         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", (void*)uplink, nick, numeric, uplink->name);
2998         return NULL;
2999     }
3000
3001     dummy = modes && modes[0] == '*';
3002     if (dummy) {
3003         ++modes;
3004     } else if (!is_valid_nick(nick)) {
3005         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", (void*)uplink, nick);
3006         return NULL;
3007     }
3008
3009     ignore_user = 0;
3010     if ((oldUser = GetUserH(nick))) {
3011         if (IsLocal(oldUser)
3012             && (IsService(oldUser) || IsPersistent(oldUser))) {
3013             /* The service should collide the new user off - but not
3014              * if the new user is coming in during a burst.  (During a
3015              * burst, the bursting server will kill either our user --
3016              * triggering a ReintroduceUser() -- or its own.)
3017              */
3018             oldUser->timestamp = timestamp - 1;
3019             ignore_user = 1;
3020             if (!uplink->burst)
3021                 irc_user(oldUser);
3022         } else if (oldUser->timestamp > timestamp) {
3023             /* "Old" user is really newer; remove them */
3024             DelUser(oldUser, 0, 1, "Overruled by older nick");
3025         } else {
3026             /* User being added is too new; do not add them to
3027              * clients, but do add them to the server's list, since it
3028              * will send a KILL and QUIT soon. */
3029             ignore_user = 1;
3030         }
3031     }
3032
3033     /* create new usernode and set all values */
3034     uNode = calloc(1, sizeof(*uNode));
3035     uNode->nick = strdup(nick);
3036     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
3037     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
3038     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
3039     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
3040     irc_p10_pton(&uNode->ip, realip);
3041
3042     tstr = conf_get_data("server/type", RECDB_QSTRING);
3043     type = atoi(tstr);
3044     if (type > 6) {
3045       if (irc_in_addr_is_ipv4(uNode->ip)) {
3046         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
3047         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3048       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
3049         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3050       }
3051     }
3052
3053     if (!uNode->crypthost && uNode->cryptip)
3054         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
3055     uNode->idle_since = timestamp;
3056     uNode->timestamp = timestamp;
3057     modeList_init(&uNode->channels);
3058     uNode->uplink = uplink;
3059     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
3060         uNode->uplink->max_clients = uNode->uplink->clients;
3061     }
3062     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
3063     uNode->uplink->users[uNode->num_local] = uNode;
3064     mod_usermode(uNode, modes);
3065     if (dummy)
3066         uNode->modes |= FLAGS_DUMMY;
3067
3068     set_geoip_info(uNode);
3069
3070     if (ignore_user)
3071         return uNode;
3072
3073     dict_insert(clients, uNode->nick, uNode);
3074     if (dict_size(clients) > max_clients) {
3075         max_clients = dict_size(clients);
3076         max_clients_time = now;
3077     }
3078     if (IsLocal(uNode))
3079         irc_user(uNode);
3080     for (n=0; (n<nuf_used) && !uNode->dead; n++)
3081         nuf_list[n](uNode);
3082
3083     if ((uNode->loc == 1) && (uNode->handle_info))
3084         send_func_list(uNode);
3085
3086     return uNode;
3087 }
3088
3089 /* removes user from it's server's hash table and nick hash table */
3090 void
3091 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3092 {
3093     unsigned int n;
3094
3095     verify(user);
3096
3097     /* mark them as dead, in case anybody cares */
3098     user->dead = 1;
3099
3100     /* remove pending adduser commands */
3101     wipe_adduser_pending(NULL, user);
3102
3103     /* remove user from all channels */
3104     while (user->channels.used > 0)
3105         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, NULL, 0);
3106
3107     /* Call these in reverse order so ChanServ can update presence
3108        information before NickServ nukes the handle_info. */
3109     for (n = duf_used; n > 0; )
3110         duf_list[--n](user, killer, why);
3111
3112     user->uplink->clients--;
3113     user->uplink->users[user->num_local] = NULL;
3114     if (IsOper(user))
3115         userList_remove(&curr_opers, user);
3116     /* remove from global dictionary, but not if after a collide */
3117     if (user == dict_find(clients, user->nick, NULL))
3118         dict_remove(clients, user->nick);
3119
3120     if (IsInvisible(user))
3121         invis_clients--;
3122
3123     if (announce) {
3124         if (IsLocal(user))
3125             irc_quit(user, why);
3126         else
3127             irc_kill(killer, user, why);
3128     }
3129
3130     if (IsLocal(user)) {
3131         unsigned int num = user->num_local;
3132         if (num < num_privmsg_funcs)
3133             privmsg_funcs[num] = NULL;
3134         if (num < num_notice_funcs)
3135             notice_funcs[num] = NULL;
3136     }
3137
3138     modeList_clean(&user->channels);
3139
3140     /* Clean up version data */
3141     if(user->version_reply) {
3142         free(user->version_reply);
3143         user->version_reply = NULL;
3144     }
3145
3146     /* clean up mark */
3147     if(user->mark) {
3148         free(user->mark);
3149         user->mark = NULL;
3150     }
3151
3152     /* clean up geoip data if any */
3153     if(user->country_code) free(user->country_code);
3154     if(user->city) free(user->city);
3155     if(user->region) free(user->region);
3156     if(user->postal_code) free(user->postal_code);
3157
3158     /* We don't free them, in case we try to privmsg them or something
3159      * (like when a stupid oper kills themself).  We just put them onto
3160      * a list of clients that get freed after processing each line.
3161      */
3162     if (dead_users.size)
3163         userList_append(&dead_users, user);
3164     else
3165         free_user(user);
3166 }
3167
3168 static void call_oper_funcs(struct userNode *user);
3169
3170 void mod_usermode(struct userNode *user, const char *mode_change) {
3171     int add = 1;
3172     const char *word = mode_change;
3173
3174     if (!user || !mode_change)
3175         return;
3176
3177     call_user_mode_funcs(user, mode_change);
3178
3179     while (*word != ' ' && *word) word++;
3180     while (*word == ' ') word++;
3181     while (1) {
3182 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3183         switch (*mode_change++) {
3184         case 0: case ' ': return;
3185         case '+': add = 1; break;
3186         case '-': add = 0; break;
3187         case 'o':
3188             do_user_mode(FLAGS_OPER);
3189             if (!add) {
3190                 userList_remove(&curr_opers, user);
3191             } else if (!userList_contains(&curr_opers, user)) {
3192                 userList_append(&curr_opers, user);
3193                 call_oper_funcs(user);
3194             }
3195             break;
3196         case 'O': do_user_mode(FLAGS_LOCOP); break;
3197         case 'i': do_user_mode(FLAGS_INVISIBLE);
3198             if (add)
3199                 invis_clients++;
3200             else
3201                 invis_clients--;
3202             break;
3203         case 'w': do_user_mode(FLAGS_WALLOP); break;
3204         case 'd': do_user_mode(FLAGS_DEAF); break;
3205         case 'k': do_user_mode(FLAGS_SERVICE); break;
3206         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3207         case 'B': do_user_mode(FLAGS_BOT); break;
3208         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3209         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3210         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3211         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3212             if (*word) {
3213                 char cloakhost[MAXLEN];
3214                 unsigned int ii;
3215                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3216                     cloakhost[ii++] = *word++;
3217                 cloakhost[ii] = 0;
3218                 while (*word == ' ')
3219                     word++;
3220                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3221             }
3222             break;
3223         case 'c': do_user_mode(FLAGS_CLOAKIP);
3224             if (*word) {
3225                 char cloakip[MAXLEN];
3226                 unsigned int ii;
3227                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3228                     cloakip[ii++] = *word++;
3229                 cloakip[ii] = 0;
3230                 while (*word == ' ')
3231                     word++;
3232                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3233             }
3234             break;
3235         // sethost - reed/apples
3236         // case 'h': do_user_mode(FLAGS_HELPER); break;
3237         // I check if there's an 'h' in the first part, and if there,
3238         // then everything after the space becomes their new host.
3239         case 'h': do_user_mode(FLAGS_SETHOST);
3240             if (*word) {
3241                 char sethost[MAXLEN];
3242                 unsigned int ii;
3243                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3244                     sethost[ii++] = *word++;
3245                 sethost[ii] = 0;
3246                 while (*word == ' ')
3247                     word++;
3248                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3249             }
3250             break;
3251         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3252         case 'r':
3253             if (*word) {
3254                 char tag[MAXLEN];
3255                 unsigned int ii;
3256                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3257                     tag[ii++] = *word++;
3258                 tag[ii] = 0;
3259                 while (*word == ' ')
3260                     word++;
3261                 call_account_func(user, tag);
3262             }
3263             break;
3264         case 'f':
3265             if (*word) {
3266                 char host[MAXLEN];
3267                 unsigned int ii;
3268                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3269                     host[ii++] = *word++;
3270                 host[ii] = 0;
3271                 while (*word == ' ')
3272                     word++;
3273                 assign_fakehost(user, host, 0);
3274             }
3275             break;
3276         }
3277 #undef do_user_mode
3278     }
3279 }
3280
3281 static int
3282 keyncpy(char output[], char input[], size_t output_size)
3283 {
3284     size_t ii;
3285
3286     if (input[0] == ':')
3287     {
3288         output[0] = '\0';
3289         return 1;
3290     }
3291
3292     for (ii = 0; (ii + 1 < output_size) && (input[ii] != '\0'); ++ii)
3293     {
3294         output[ii] = input[ii];
3295     }
3296
3297     output[ii] = '\0';
3298     return 0;
3299 }
3300
3301 struct mod_chanmode *
3302 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3303 {
3304     struct mod_chanmode *change;
3305     unsigned int ii, in_arg, ch_arg, add;
3306
3307     if (argc == 0)
3308         return NULL;
3309     if (!(change = mod_chanmode_alloc(argc - 1)))
3310         return NULL;
3311
3312     for (ii = ch_arg = 0, in_arg = add = 1;
3313          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3314          ++ii) {
3315         switch (modes[0][ii]) {
3316         case '+':
3317             add = 1;
3318             break;
3319         case '-':
3320             add = 0;
3321             break;
3322 #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)
3323         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3324         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3325         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3326         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3327         case 'm': do_chan_mode(MODE_MODERATED); break;
3328         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3329         case 'p': do_chan_mode(MODE_PRIVATE); break;
3330         case 'r': do_chan_mode(MODE_REGONLY); break;
3331         case 's': do_chan_mode(MODE_SECRET); break;
3332         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3333         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3334         case 'M': do_chan_mode(MODE_MODUNREG); break;
3335         case 'N': do_chan_mode(MODE_NONOTICE); break;
3336         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3337         case 'T': do_chan_mode(MODE_NOAMSG); break;
3338         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3339         case 'a': do_chan_mode(MODE_ADMINSONLY); break;
3340         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3341         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3342         case 'z':
3343           if (!(flags & MCP_REGISTERED)) {
3344               do_chan_mode(MODE_REGISTERED);
3345           } else {
3346               mod_chanmode_free(change);
3347               return NULL;
3348           }
3349           break;
3350 #undef do_chan_mode
3351         case 'l':
3352             if (add) {
3353                 if (in_arg >= argc)
3354                     goto error;
3355                 change->modes_set |= MODE_LIMIT;
3356                 change->new_limit = atoi(modes[in_arg++]);
3357             } else {
3358                 change->modes_set &= ~MODE_LIMIT;
3359                 change->modes_clear |= MODE_LIMIT;
3360             }
3361             break;
3362         case 'k':
3363             if (add) {
3364                 if ((in_arg >= argc)
3365                     || keyncpy(change->new_key, modes[in_arg++], sizeof(change->new_key)))
3366                     goto error;
3367                 change->modes_set |= MODE_KEY;
3368             } else {
3369                 change->modes_clear |= MODE_KEY;
3370                 if (!(flags & MCP_KEY_FREE)) {
3371                     if (in_arg >= argc)
3372                         goto error;
3373                     in_arg++;
3374                 }
3375             }
3376             break;
3377         case 'U':
3378             if (add)
3379             {
3380                 if ((in_arg >= argc)
3381                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3382                     goto error;
3383                 change->modes_set |= MODE_UPASS;
3384             } else {
3385                 change->modes_clear |= MODE_UPASS;
3386                 if (!(flags & MCP_UPASS_FREE)) {
3387                     if (in_arg >= argc)
3388                         goto error;
3389                     in_arg++;
3390                 }
3391             }
3392             break;
3393         case 'A':
3394             if (add) {
3395                 if ((in_arg >= argc)
3396                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3397                 change->modes_set |= MODE_APASS;
3398             } else {
3399                 change->modes_clear |= MODE_APASS;
3400                 if (!(flags & MCP_APASS_FREE)) {
3401                     if (in_arg >= argc)
3402                       goto error;
3403                     in_arg++;
3404                 }
3405             }
3406             break;
3407         case 'b':
3408             if (!(flags & MCP_ALLOW_OVB))
3409                 goto error;
3410             if (in_arg >= argc)
3411                 goto error;
3412             change->args[ch_arg].mode = MODE_BAN;
3413             if (!add)
3414                 change->args[ch_arg].mode |= MODE_REMOVE;
3415             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3416             break;
3417         case 'e':
3418             if (!(flags & MCP_ALLOW_OVB))
3419                 goto error;
3420             if (in_arg >= argc)
3421                 goto error;
3422             change->args[ch_arg].mode = MODE_EXEMPT;
3423             if (!add)
3424                 change->args[ch_arg].mode |= MODE_REMOVE;
3425             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3426             break;
3427         case 'o': case 'h': case 'v':
3428         {
3429             struct userNode *victim;
3430             char *oplevel_str;
3431             int oplevel;
3432
3433             if (in_arg >= argc)
3434                 goto error;
3435             oplevel_str = strchr(modes[in_arg], ':');
3436             if (oplevel_str)
3437             {
3438                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3439                 *oplevel_str++ = '\0';
3440                 oplevel = parse_oplevel(oplevel_str);
3441                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3442                     oplevel = base_oplevel + 1;
3443             }
3444             else if (channel->modes & MODE_UPASS)
3445                 oplevel = base_oplevel + 1;
3446             else
3447                 oplevel = -1;
3448
3449             /* Check that oplevel is within bounds. */
3450             if (oplevel > MAXOPLEVEL)
3451                 oplevel = MAXOPLEVEL;
3452
3453             if (!(flags & MCP_ALLOW_OVB))
3454                 goto error;
3455             if (in_arg >= argc)
3456                 goto error;
3457
3458             if (modes[0][ii] == 'o')
3459                 change->args[ch_arg].mode = MODE_CHANOP;
3460             else if (modes[0][ii] == 'h')
3461                 change->args[ch_arg].mode = MODE_HALFOP;
3462             else if (modes[0][ii] == 'v')
3463                 change->args[ch_arg].mode = MODE_VOICE;
3464
3465             if (!add)
3466                 change->args[ch_arg].mode |= MODE_REMOVE;
3467             if (flags & MCP_FROM_SERVER)
3468                 victim = GetUserN(modes[in_arg++]);
3469             else
3470                 victim = GetUserH(modes[in_arg++]);
3471             if (!victim)
3472                 continue;
3473             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3474             {
3475                 /* Apply the oplevel change */
3476                 change->args[ch_arg].u.member->oplevel = oplevel;
3477                 ch_arg++;
3478             }
3479             break;
3480         }
3481         default:
3482             if (!(flags & MCP_FROM_SERVER))
3483                 goto error;
3484             break;
3485         }
3486     }
3487     change->argc = ch_arg; /* in case any turned out to be ignored */
3488     if (change->modes_set & MODE_SECRET) {
3489         change->modes_set &= ~(MODE_PRIVATE);
3490         change->modes_clear |= MODE_PRIVATE;
3491     } else if (change->modes_set & MODE_PRIVATE) {
3492         change->modes_set &= ~(MODE_SECRET);
3493         change->modes_clear |= MODE_SECRET;
3494     }
3495     return change;
3496   error:
3497     mod_chanmode_free(change);
3498     return NULL;
3499 }
3500
3501 struct chanmode_buffer {
3502     char modes[MAXLEN];
3503     char args[MAXLEN];
3504     struct chanNode *channel;
3505     struct userNode *actor;
3506     unsigned int modes_used;
3507     unsigned int args_used;
3508     size_t chname_len;
3509     unsigned int is_add : 1;
3510     unsigned int is_chanop : 1;
3511 };
3512
3513 static void
3514 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3515 {
3516     size_t arg_len = strlen(arg);
3517     if (buf->modes_used > (MAXMODEPARAMS) ||
3518         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3519         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3520         buf->modes[buf->modes_used + buf->args_used] = '\0';
3521         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3522         buf->modes[0] = buf->is_add ? '+' : '-';
3523         buf->modes_used = 1;
3524         buf->args_used = 0;
3525     }
3526     buf->modes[buf->modes_used++] = ch;
3527     buf->args[buf->args_used++] = ' ';
3528     memcpy(buf->args + buf->args_used, arg, arg_len);
3529     buf->args_used += arg_len;
3530 }
3531
3532 void
3533 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3534 {
3535     struct chanmode_buffer chbuf;
3536     unsigned int arg;
3537     struct modeNode *mn;
3538     char int_buff[32], mode = '\0';
3539
3540     assert(change->argc <= change->alloc_argc);
3541     memset(&chbuf, 0, sizeof(chbuf));
3542     chbuf.channel = channel;
3543     chbuf.actor = who;
3544     chbuf.chname_len = strlen(channel->name);
3545
3546     mn = GetUserMode(channel, who);
3547     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3548         chbuf.is_chanop = 1;
3549
3550     /* First remove modes */
3551     chbuf.is_add = 0;
3552     if (change->modes_clear) {
3553         if (mode != '-')
3554             chbuf.modes[chbuf.modes_used++] = mode = '-';
3555 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3556         DO_MODE_CHAR(PRIVATE, 'p');
3557         DO_MODE_CHAR(SECRET, 's');
3558         DO_MODE_CHAR(MODERATED, 'm');
3559         DO_MODE_CHAR(TOPICLIMIT, 't');
3560         DO_MODE_CHAR(INVITEONLY, 'i');
3561         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3562         DO_MODE_CHAR(LIMIT, 'l');
3563         DO_MODE_CHAR(DELAYJOINS, 'D');
3564         DO_MODE_CHAR(REGONLY, 'r');
3565         DO_MODE_CHAR(NOCOLORS, 'c');
3566         DO_MODE_CHAR(NOCTCPS, 'C');
3567         DO_MODE_CHAR(STRIPCOLOR, 'S');
3568         DO_MODE_CHAR(MODUNREG, 'M');
3569         DO_MODE_CHAR(NONOTICE, 'N');
3570         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3571         DO_MODE_CHAR(NOAMSG, 'T');
3572         DO_MODE_CHAR(OPERSONLY, 'O');
3573         DO_MODE_CHAR(REGISTERED, 'z');
3574         DO_MODE_CHAR(SSLONLY, 'Z');
3575         DO_MODE_CHAR(HIDEMODE, 'L');
3576 #undef DO_MODE_CHAR
3577         if (change->modes_clear & channel->modes & MODE_KEY)
3578             mod_chanmode_append(&chbuf, 'k', channel->key);
3579         if (change->modes_clear & channel->modes & MODE_UPASS)
3580             mod_chanmode_append(&chbuf, 'U', channel->upass);
3581         if (change->modes_clear & channel->modes & MODE_APASS)
3582             mod_chanmode_append(&chbuf, 'A', channel->apass);
3583     }
3584     for (arg = 0; arg < change->argc; ++arg) {
3585         if (!(change->args[arg].mode & MODE_REMOVE))
3586             continue;
3587         if (mode != '-')
3588             chbuf.modes[chbuf.modes_used++] = mode = '-';
3589         switch (change->args[arg].mode & ~MODE_REMOVE) {
3590         case MODE_BAN:
3591             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3592             break;
3593         case MODE_EXEMPT:
3594             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3595             break;
3596         default:
3597             if (change->args[arg].mode & MODE_CHANOP)
3598                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3599             if (change->args[arg].mode & MODE_HALFOP)
3600                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3601             if (change->args[arg].mode & MODE_VOICE)
3602                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3603             break;
3604         }
3605     }
3606
3607     /* Then set them */
3608     chbuf.is_add = 1;
3609     if (change->modes_set) {
3610         if (mode != '+')
3611             chbuf.modes[chbuf.modes_used++] = mode = '+';
3612 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3613         DO_MODE_CHAR(PRIVATE, 'p');
3614         DO_MODE_CHAR(SECRET, 's');
3615         DO_MODE_CHAR(MODERATED, 'm');
3616         DO_MODE_CHAR(TOPICLIMIT, 't');
3617         DO_MODE_CHAR(INVITEONLY, 'i');
3618         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3619         DO_MODE_CHAR(DELAYJOINS, 'D');
3620         DO_MODE_CHAR(REGONLY, 'r');
3621         DO_MODE_CHAR(NOCOLORS, 'c');
3622         DO_MODE_CHAR(NOCTCPS, 'C');
3623         DO_MODE_CHAR(STRIPCOLOR, 'S');
3624         DO_MODE_CHAR(MODUNREG, 'M');
3625         DO_MODE_CHAR(NONOTICE, 'N');
3626         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3627         DO_MODE_CHAR(NOAMSG, 'T');
3628         DO_MODE_CHAR(OPERSONLY, 'O');
3629         DO_MODE_CHAR(REGISTERED, 'z');
3630         DO_MODE_CHAR(SSLONLY, 'Z');
3631         DO_MODE_CHAR(HIDEMODE, 'L');
3632 #undef DO_MODE_CHAR
3633         if(change->modes_set & MODE_KEY)
3634             mod_chanmode_append(&chbuf, 'k', change->new_key);
3635         if (change->modes_set & MODE_UPASS)
3636             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3637         if (change->modes_set & MODE_APASS)
3638             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3639         if(change->modes_set & MODE_LIMIT) {
3640             sprintf(int_buff, "%d", change->new_limit);
3641             mod_chanmode_append(&chbuf, 'l', int_buff);
3642         }
3643     }
3644     for (arg = 0; arg < change->argc; ++arg) {
3645         if (change->args[arg].mode & MODE_REMOVE)
3646             continue;
3647         if (mode != '+')
3648             chbuf.modes[chbuf.modes_used++] = mode = '+';
3649         switch (change->args[arg].mode) {
3650         case MODE_BAN:
3651             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3652             break;
3653         case MODE_EXEMPT:
3654             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3655             break;
3656         default:
3657             if (change->args[arg].mode & MODE_CHANOP)
3658                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3659             if (change->args[arg].mode & MODE_HALFOP)
3660                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3661             if (change->args[arg].mode & MODE_VOICE)
3662                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3663             break;
3664         }
3665     }
3666
3667     /* Flush the buffer and apply changes locally */
3668     if (chbuf.modes_used > 0) {
3669         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3670         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3671         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3672     }
3673     mod_chanmode_apply(who, channel, change);
3674 }
3675
3676 char *
3677 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3678 {
3679     unsigned int used = 0;
3680     assert(change->argc <= change->alloc_argc);
3681     if (change->modes_clear) {
3682         outbuff[used++] = '-';
3683 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3684         DO_MODE_CHAR(PRIVATE, 'p');
3685         DO_MODE_CHAR(SECRET, 's');
3686         DO_MODE_CHAR(MODERATED, 'm');
3687         DO_MODE_CHAR(TOPICLIMIT, 't');
3688         DO_MODE_CHAR(INVITEONLY, 'i');
3689         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3690         DO_MODE_CHAR(LIMIT, 'l');
3691         DO_MODE_CHAR(KEY, 'k');
3692         DO_MODE_CHAR(UPASS, 'U');
3693         DO_MODE_CHAR(APASS, 'A');
3694         DO_MODE_CHAR(DELAYJOINS, 'D');
3695         DO_MODE_CHAR(REGONLY, 'r');
3696         DO_MODE_CHAR(NOCOLORS, 'c');
3697         DO_MODE_CHAR(NOCTCPS, 'C');
3698         DO_MODE_CHAR(STRIPCOLOR, 'S');
3699         DO_MODE_CHAR(MODUNREG, 'M');
3700         DO_MODE_CHAR(NONOTICE, 'N');
3701         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3702         DO_MODE_CHAR(NOAMSG, 'T');
3703         DO_MODE_CHAR(OPERSONLY, 'O');
3704         DO_MODE_CHAR(REGISTERED, 'z');
3705         DO_MODE_CHAR(SSLONLY, 'Z');
3706         DO_MODE_CHAR(HIDEMODE, 'L');
3707 #undef DO_MODE_CHAR
3708     }
3709     if (change->modes_set) {
3710         outbuff[used++] = '+';
3711 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3712         DO_MODE_CHAR(PRIVATE, 'p');
3713         DO_MODE_CHAR(SECRET, 's');
3714         DO_MODE_CHAR(MODERATED, 'm');
3715         DO_MODE_CHAR(TOPICLIMIT, 't');
3716         DO_MODE_CHAR(INVITEONLY, 'i');
3717         DO_MODE_CHAR(NOPRIVMSGS, 'n');
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         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3733         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3734         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3735             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3736             break;
3737
3738         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3739             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3740             break;
3741         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3742             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3743             break;
3744         case MODE_KEY|MODE_APASS|MODE_UPASS:
3745             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3746             break;
3747
3748         case MODE_KEY|MODE_APASS:
3749             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3750             break;
3751         case MODE_KEY|MODE_UPASS:
3752             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3753             break;
3754         case MODE_KEY|MODE_LIMIT:
3755             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3756             break;
3757
3758         case MODE_LIMIT|MODE_UPASS:
3759             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3760             break;
3761         case MODE_LIMIT|MODE_APASS:
3762             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3763             break;
3764         case MODE_APASS|MODE_UPASS:
3765             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3766
3767         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3768             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3769             break;
3770
3771         case MODE_APASS:
3772             used += sprintf(outbuff+used, "A %s", change->new_apass);
3773             break;
3774         case MODE_UPASS:
3775             used += sprintf(outbuff+used, "U %s", change->new_upass);
3776             break;
3777         case MODE_KEY:
3778             used += sprintf(outbuff+used, "k %s", change->new_key);
3779             break;
3780         case MODE_LIMIT:
3781             used += sprintf(outbuff+used, "l %d", change->new_limit);
3782             break;
3783         }
3784     }
3785     outbuff[used] = 0;
3786     return outbuff;
3787 }
3788
3789 static int
3790 clear_chanmode(struct chanNode *channel, const char *modes)
3791 {
3792     unsigned int cleared;
3793
3794     for (cleared = 0; *modes; modes++) {
3795         switch (*modes) {
3796         case 'o': cleared |= MODE_CHANOP; break;
3797         case 'h': cleared |= MODE_HALFOP; break;
3798         case 'v': cleared |= MODE_VOICE; break;
3799         case 'p': cleared |= MODE_PRIVATE; break;
3800         case 's': cleared |= MODE_SECRET; break;
3801         case 'm': cleared |= MODE_MODERATED; break;
3802         case 't': cleared |= MODE_TOPICLIMIT; break;
3803         case 'i': cleared |= MODE_INVITEONLY; break;
3804         case 'n': cleared |= MODE_NOPRIVMSGS; break;
3805         case 'k':
3806             cleared |= MODE_KEY;
3807             channel->key[0] = '\0';
3808             break;
3809         case 'A':
3810             cleared |= MODE_APASS;
3811             channel->apass[0] = '\0';
3812             break;
3813         case 'U':
3814             cleared |= MODE_UPASS;
3815             channel->upass[0] = '\0';
3816             break;
3817         case 'l':
3818             cleared |= MODE_LIMIT;
3819             channel->limit = 0;
3820             break;
3821         case 'b': cleared |= MODE_BAN; break;
3822         case 'e': cleared |= MODE_EXEMPT; break;
3823         case 'D': cleared |= MODE_DELAYJOINS; break;
3824         case 'r': cleared |= MODE_REGONLY; break;
3825         case 'c': cleared |= MODE_NOCOLORS; break;
3826         case 'C': cleared |= MODE_NOCTCPS; break;
3827         case 'S': cleared |= MODE_STRIPCOLOR; break;
3828         case 'M': cleared |= MODE_MODUNREG; break;
3829         case 'N': cleared |= MODE_NONOTICE; break;
3830         case 'Q': cleared |= MODE_NOQUITMSGS; break;
3831         case 'T': cleared |= MODE_NOAMSG; break;
3832         case 'O': cleared |= MODE_OPERSONLY; break;
3833         case 'a': cleared |= MODE_ADMINSONLY; break;
3834         case 'z': cleared |= MODE_REGISTERED; break;
3835         case 'Z': cleared |= MODE_SSLONLY; break;
3836         case 'L': cleared |= MODE_HIDEMODE; break;
3837         }
3838     }
3839
3840     if (!cleared)
3841         return 1;
3842
3843     /* Remove simple modes. */
3844     channel->modes &= ~cleared;
3845
3846     /* If removing bans, kill 'em all. */
3847     if ((cleared & MODE_BAN) && channel->banlist.used) {
3848         unsigned int i;
3849         for (i=0; i<channel->banlist.used; i++)
3850             free(channel->banlist.list[i]);
3851         channel->banlist.used = 0;
3852     }
3853
3854     /* If removing exempts, kill 'em all. */
3855     if ((cleared & MODE_EXEMPT) && channel->exemptlist.used) {
3856         unsigned int i;
3857         for (i=0; i<channel->exemptlist.used; i++)
3858             free(channel->exemptlist.list[i]);
3859         channel->exemptlist.used = 0;
3860     }
3861
3862     /* Removed member modes. */
3863     if ((cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3864         int mask = ~(cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3865         unsigned int i;
3866
3867         for (i = 0; i < channel->members.used; i++)
3868             channel->members.list[i]->modes &= mask;
3869     }
3870
3871     return 1;
3872 }
3873
3874 void
3875 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3876 {
3877     unsigned int numeric = user->num_local;
3878     if (numeric >= num_privmsg_funcs) {
3879         int newnum = numeric + 8, ii;
3880         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3881         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3882             privmsg_funcs[ii] = NULL;
3883         num_privmsg_funcs = newnum;
3884     }
3885     if (privmsg_funcs[numeric])
3886         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3887     privmsg_funcs[numeric] = handler;
3888 }
3889
3890 void
3891 unreg_privmsg_func(struct userNode *user)
3892 {
3893     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3894         return; /* this really only works with users */
3895
3896     privmsg_funcs[user->num_local] = NULL;
3897 }
3898
3899
3900 void
3901 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3902 {
3903     unsigned int numeric = user->num_local;
3904     if (numeric >= num_notice_funcs) {
3905         int newnum = numeric + 8, ii;
3906         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3907         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3908             privmsg_funcs[ii] = NULL;
3909         num_notice_funcs = newnum;
3910     }
3911     if (notice_funcs[numeric])
3912         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3913     notice_funcs[numeric] = handler;
3914 }
3915
3916 void
3917 unreg_notice_func(struct userNode *user)
3918 {
3919     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3920         return; /* this really only works with users */
3921
3922     notice_funcs[user->num_local] = NULL;
3923 }
3924
3925 static void
3926 send_burst(void)
3927 {
3928     unsigned int i, hop, max_hop=1;
3929     dict_iterator_t it;
3930
3931     /* burst (juped) servers, closest first (except self, which is sent already) */
3932     for (i=0; i<ArrayLength(servers_num); i++)
3933         if (servers_num[i] && servers_num[i]->hops > max_hop)
3934             max_hop = servers_num[i]->hops;
3935     for (hop=1; hop<=max_hop; hop++) {
3936         for (i=0;i<ArrayLength(servers_num);i++) {
3937             if (servers_num[i]
3938                 && (servers_num[i]->hops == hop)
3939                 && (servers_num[i] != self->uplink))
3940                 irc_server(servers_num[i]);
3941         }
3942     }
3943
3944     /* burst local nicks */
3945     for (i=0; i<=self->num_mask; i++)
3946         if (self->users[i])
3947             irc_user(self->users[i]);
3948
3949     /* build dict of unbursted channel names (just copy existing channels) */
3950     unbursted_channels = dict_new();
3951     for (it = dict_first(channels); it; it = iter_next(it))
3952         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3953 }
3954
3955 /*
3956  * Oplevel parsing
3957  */
3958 static int
3959 parse_oplevel(char *str)
3960 {
3961     int oplevel = 0;
3962     while (isdigit(*str))
3963         oplevel = oplevel * 10 + *str++ - '0';
3964     return oplevel;
3965 }
3966