src/proto-p10.c

   1 /* proto-p10.c - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #include "nickserv.h"
  22 #include "chanserv.h"
  23 #include "hash.h"
  24 #include "helpfile.h"
  25 #include "hosthiding.h"
  26 #include "proto-common.c"
  27 #include "opserv.h"
  28
  29 /* Full commands. */
  30 #define CMD_ACCOUNT             "ACCOUNT"
  31 #define CMD_ADMIN               "ADMIN"
  32 #define CMD_ALIST               "ALIST"
  33 #define CMD_ASLL                "ASLL"
  34 #define CMD_AWAY                "AWAY"
  35 #define CMD_BURST               "BURST"
  36 #define CMD_CLEARMODE           "CLEARMODE"
  37 #define CMD_CLOSE               "CLOSE"
  38 #define CMD_CNOTICE             "CNOTICE"
  39 #define CMD_CONNECT             "CONNECT"
  40 #define CMD_CPRIVMSG            "CPRIVMSG"
  41 #define CMD_CREATE              "CREATE"
  42 #define CMD_DESTRUCT            "DESTRUCT"
  43 #define CMD_DESYNCH             "DESYNCH"
  44 #define CMD_DIE                 "DIE"
  45 #define CMD_DNS                 "DNS"
  46 #define CMD_EOB                 "END_OF_BURST"
  47 #define CMD_EOB_ACK             "EOB_ACK"
  48 #define CMD_ERROR               "ERROR"
  49 #define CMD_FAKEHOST            "FAKE"
  50 #define CMD_GET                 "GET"
  51 #define CMD_GLINE               "GLINE"
  52 #define CMD_HASH                "HASH"
  53 #define CMD_HELP                "HELP"
  54 #define CMD_INFO                "INFO"
  55 #define CMD_INVITE              "INVITE"
  56 #define CMD_ISON                "ISON"
  57 #define CMD_JOIN                "JOIN"
  58 #define CMD_JUPE                "JUPE"
  59 #define CMD_KICK                "KICK"
  60 #define CMD_KILL                "KILL"
  61 #define CMD_LINKS               "LINKS"
  62 #define CMD_LIST                "LIST"
  63 #define CMD_LUSERS              "LUSERS"
  64 #define CMD_MAP                 "MAP"
  65 #define CMD_MARK                "MARK"
  66 #define CMD_MODE                "MODE"
  67 #define CMD_MOTD                "MOTD"
  68 #define CMD_NAMES               "NAMES"
  69 #define CMD_NICK                "NICK"
  70 #define CMD_NOTICE              "NOTICE"
  71 #define CMD_OPER                "OPER"
  72 #define CMD_OPMODE              "OPMODE"
  73 #define CMD_PART                "PART"
  74 #define CMD_PASS                "PASS"
  75 #define CMD_PING                "PING"
  76 #define CMD_PONG                "PONG"
  77 #define CMD_POST                "POST"
  78 #define CMD_PRIVMSG             "PRIVMSG"
  79 #define CMD_PRIVS               "PRIVS"
  80 #define CMD_PROTO               "PROTO"
  81 #define CMD_QUIT                "QUIT"
  82 #define CMD_REHASH              "REHASH"
  83 #define CMD_RESET               "RESET"
  84 #define CMD_RESTART             "RESTART"
  85 #define CMD_RPING               "RPING"
  86 #define CMD_RPONG               "RPONG"
  87 #define CMD_SERVER              "SERVER"
  88 #define CMD_SERVLIST            "SERVLIST"
  89 #define CMD_SERVSET             "SERVSET"
  90 #define CMD_SET                 "SET"
  91 #define CMD_SETTIME             "SETTIME"
  92 #define CMD_SGLINE              "SGLINE"
  93 #define CMD_SHUN                "SHUN"
  94 #define CMD_SILENCE             "SILENCE"
  95 #define CMD_SMO                 "SMO"
  96 #define CMD_SNO                 "SNO"
  97 #define CMD_SSHUN               "SSHUN"
  98 #define CMD_SPAMFILTER          "SPAMFILTER"
  99 #define CMD_SQUERY              "SQUERY"
 100 #define CMD_SQUIT               "SQUIT"
 101 #define CMD_STATS               "STATS"
 102 #define CMD_SVSJOIN             "SVSJOIN"
 103 #define CMD_SVSNICK             "SVSNICK"
 104 #define CMD_SVSPART             "SVSPART"
 105 #define CMD_SVSQUIT             "SVSQUIT"
 106 #define CMD_SWHOIS              "SWHOIS"
 107 #define CMD_TIME                "TIME"
 108 #define CMD_TOPIC               "TOPIC"
 109 #define CMD_TRACE               "TRACE"
 110 #define CMD_UPING               "UPING"
 111 #define CMD_USER                "USER"
 112 #define CMD_USERHOST            "USERHOST"
 113 #define CMD_USERIP              "USERIP"
 114 #define CMD_VERSION             "VERSION"
 115 #define CMD_WALLCHOPS           "WALLCHOPS"
 116 #define CMD_WALLOPS             "WALLOPS"
 117 #define CMD_WALLHOPS            "WALLHOPS"
 118 #define CMD_WALLUSERS           "WALLUSERS"
 119 #define CMD_WALLVOICES          "WALLVOICES"
 120 #define CMD_WALLHOPS            "WALLHOPS"
 121 #define CMD_WHO                 "WHO"
 122 #define CMD_WHOIS               "WHOIS"
 123 #define CMD_WHOWAS              "WHOWAS"
 124
 125 /* Tokenized commands. */
 126 #define TOK_ACCOUNT             "AC"
 127 #define TOK_ADMIN               "AD"
 128 #define TOK_ALIST               "AL"
 129 #define TOK_ASLL                "LL"
 130 #define TOK_AWAY                "A"
 131 #define TOK_BURST               "B"
 132 #define TOK_CLEARMODE           "CM"
 133 #define TOK_CLOSE               "CLOSE"
 134 #define TOK_CNOTICE             "CN"
 135 #define TOK_CONNECT             "CO"
 136 #define TOK_CPRIVMSG            "CP"
 137 #define TOK_CREATE              "C"
 138 #define TOK_DESTRUCT            "DE"
 139 #define TOK_DESYNCH             "DS"
 140 #define TOK_DIE                 "DIE"
 141 #define TOK_DNS                 "DNS"
 142 #define TOK_EOB                 "EB"
 143 #define TOK_EOB_ACK             "EA"
 144 #define TOK_ERROR               "Y"
 145 #define TOK_EXEMPT              "EX"
 146 #define TOK_FAKEHOST            "FA"
 147 #define TOK_GET                 "GET"
 148 #define TOK_GLINE               "GL"
 149 #define TOK_HASH                "HASH"
 150 #define TOK_HELP                "HELP"
 151 #define TOK_INFO                "F"
 152 #define TOK_INVITE              "I"
 153 #define TOK_ISON                "ISON"
 154 #define TOK_JOIN                "J"
 155 #define TOK_JUPE                "JU"
 156 #define TOK_KICK                "K"
 157 #define TOK_KILL                "D"
 158 #define TOK_LINKS               "LI"
 159 #define TOK_LIST                "LIST"
 160 #define TOK_LUSERS              "LU"
 161 #define TOK_MAP                 "MAP"
 162 #define TOK_MARK                "MK"
 163 #define TOK_MODE                "M"
 164 #define TOK_MOTD                "MO"
 165 #define TOK_NAMES               "E"
 166 #define TOK_NICK                "N"
 167 #define TOK_NOTICE              "O"
 168 #define TOK_OPER                "OPER"
 169 #define TOK_OPMODE              "OM"
 170 #define TOK_PART                "L"
 171 #define TOK_PASS                "PA"
 172 #define TOK_PING                "G"
 173 #define TOK_PONG                "Z"
 174 #define TOK_POST                "POST"
 175 #define TOK_PRIVMSG             "P"
 176 #define TOK_PRIVS               "PRIVS"
 177 #define TOK_PROTO               "PROTO"
 178 #define TOK_QUIT                "Q"
 179 #define TOK_REHASH              "REHASH"
 180 #define TOK_RESET               "RESET"
 181 #define TOK_RESTART             "RESTART"
 182 #define TOK_RPING               "RI"
 183 #define TOK_RPONG               "RO"
 184 #define TOK_SERVER              "S"
 185 #define TOK_SERVLIST            "SERVSET"
 186 #define TOK_SERVSET             "SERVSET"
 187 #define TOK_SET                 "SET"
 188 #define TOK_SETTIME             "SE"
 189 #define TOK_SGLINE              "SGL"
 190 #define TOK_SHUN                "SU"
 191 #define TOK_SILENCE             "U"
 192 #define TOK_SMO                 "SMO"
 193 #define TOK_SNO                 "SNO"
 194 #define TOK_SSHUN               "SSU"
 195 #define TOK_SPAMFILTER          "SF"
 196 #define TOK_SQUERY              "SQUERY"
 197 #define TOK_SQUIT               "SQ"
 198 #define TOK_STATS               "R"
 199 #define TOK_SVSJOIN             "SJ"
 200 #define TOK_SVSNICK             "SN"
 201 #define TOK_SVSPART             "SP"
 202 #define TOK_SVSQUIT             "SX"
 203 #define TOK_SWHOIS              "SW"
 204 #define TOK_TIME                "TI"
 205 #define TOK_TOPIC               "T"
 206 #define TOK_TRACE               "TR"
 207 #define TOK_UPING               "UP"
 208 #define TOK_USER                "USER"
 209 #define TOK_USERHOST            "USERHOST"
 210 #define TOK_USERIP              "USERIP"
 211 #define TOK_VERSION             "V"
 212 #define TOK_WALLCHOPS           "WC"
 213 #define TOK_WALLOPS             "WA"
 214 #define TOK_WALLHOPS            "WH"
 215 #define TOK_WALLUSERS           "WU"
 216 #define TOK_WALLVOICES          "WV"
 217 #define TOK_WALLHOPS            "WH"
 218 #define TOK_WHO                 "H"
 219 #define TOK_WHOIS               "W"
 220 #define TOK_WHOWAS              "X"
 221
 222 /* Protocol messages; aliased to full commands or tokens depending
 223    on compile-time configuration. ircu prefers tokens WITH THE
 224    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 225    tokenized, because clients' (ie. a linking server) commands are
 226    only checked against the full command list.
 227 */
 228 #if defined(ENABLE_TOKENS)
 229 #define TYPE(NAME)              TOK_ ## NAME
 230 #else /* !ENABLE_TOKENS */
 231 #define TYPE(NAME)              CMD_ ## NAME
 232 #endif /* ENABLE_TOKENS */
 233
 234 #define P10_ACCOUNT             TYPE(ACCOUNT)
 235 #define P10_ADMIN               TYPE(ADMIN)
 236 #define P10_ASLL                TYPE(ASLL)
 237 #define P10_AWAY                TYPE(AWAY)
 238 #define P10_BURST               TYPE(BURST)
 239 #define P10_CLEARMODE           TYPE(CLEARMODE)
 240 #define P10_CLOSE               TYPE(CLOSE)
 241 #define P10_CNOTICE             TYPE(CNOTICE)
 242 #define P10_CONNECT             TYPE(CONNECT)
 243 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 244 #define P10_CREATE              TYPE(CREATE)
 245 #define P10_DESTRUCT            TYPE(DESTRUCT)
 246 #define P10_DESYNCH             TYPE(DESYNCH)
 247 #define P10_DIE                 TYPE(DIE)
 248 #define P10_DNS                 TYPE(DNS)
 249 #define P10_EOB                 TYPE(EOB)
 250 #define P10_EOB_ACK             TYPE(EOB_ACK)
 251 #define P10_ERROR               TYPE(ERROR)
 252 #define P10_FAKEHOST            TYPE(FAKEHOST)
 253 #define P10_GET                 TYPE(GET)
 254 #define P10_GLINE               TYPE(GLINE)
 255 #define P10_HASH                TYPE(HASH)
 256 #define P10_HELP                TYPE(HELP)
 257 #define P10_INFO                TYPE(INFO)
 258 #define P10_INVITE              TYPE(INVITE)
 259 #define P10_ISON                TYPE(ISON)
 260 #define P10_JOIN                TYPE(JOIN)
 261 #define P10_JUPE                TYPE(JUPE)
 262 #define P10_KICK                TYPE(KICK)
 263 #define P10_KILL                TYPE(KILL)
 264 #define P10_LINKS               TYPE(LINKS)
 265 #define P10_LIST                TYPE(LIST)
 266 #define P10_LUSERS              TYPE(LUSERS)
 267 #define P10_MAP                 TYPE(MAP)
 268 #define P10_MARK                TYPE(MARK)
 269 #define P10_MODE                TYPE(MODE)
 270 #define P10_MOTD                TYPE(MOTD)
 271 #define P10_NAMES               TYPE(NAMES)
 272 #define P10_NICK                TYPE(NICK)
 273 #define P10_NOTICE              TYPE(NOTICE)
 274 #define P10_OPER                TYPE(OPER)
 275 #define P10_OPMODE              TYPE(OPMODE)
 276 #define P10_PART                TYPE(PART)
 277 #define P10_PASS                CMD_PASS
 278 #define P10_PING                TYPE(PING)
 279 #define P10_PONG                TYPE(PONG)
 280 #define P10_POST                TYPE(POST)
 281 #define P10_PRIVMSG             TYPE(PRIVMSG)
 282 #define P10_PRIVS               TYPE(PRIVS)
 283 #define P10_PROTO               TYPE(PROTO)
 284 #define P10_QUIT                TYPE(QUIT)
 285 #define P10_REHASH              TYPE(REHASH)
 286 #define P10_RESET               TYPE(RESET)
 287 #define P10_RESTART             TYPE(RESTART)
 288 #define P10_RPING               TYPE(RPING)
 289 #define P10_RPONG               TYPE(RPONG)
 290 #define P10_SERVER              CMD_SERVER
 291 #define P10_SERVLIST            TYPE(SERVLIST)
 292 #define P10_SERVSET             TYPE(SERVSET)
 293 #define P10_SET                 TYPE(SET)
 294 #define P10_SETTIME             TYPE(SETTIME)
 295 #define P10_SGLINE              TYPE(SGLINE)
 296 #define P10_SHUN                TYPE(SHUN)
 297 #define P10_SILENCE             TYPE(SILENCE)
 298 #define P10_SMO                 TYPE(SMO)
 299 #define P10_SNO                 TYPE(SNO)
 300 #define P10_SSHUN               TYPE(SSHUN)
 301 #define P10_SPAMFILTER          TYPE(SPAMFILTER)
 302 #define P10_SQUERY              TYPE(SQUERY)
 303 #define P10_SQUIT               TYPE(SQUIT)
 304 #define P10_STATS               TYPE(STATS)
 305 #define P10_SVSJOIN             TYPE(SVSJOIN)
 306 #define P10_SVSNICK             TYPE(SVSNICK)
 307 #define P10_SVSPART             TYPE(SVSPART)
 308 #define P10_SVSQUIT             TYPE(SVSQUIT)
 309 #define P10_SWHOIS              TYPE(SWHOIS)
 310 #define P10_TIME                TYPE(TIME)
 311 #define P10_TOPIC               TYPE(TOPIC)
 312 #define P10_TRACE               TYPE(TRACE)
 313 #define P10_UPING               TYPE(UPING)
 314 #define P10_USER                TYPE(USER)
 315 #define P10_USERHOST            TYPE(USERHOST)
 316 #define P10_USERIP              TYPE(USERIP)
 317 #define P10_VERSION             TYPE(VERSION)
 318 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 319 #define P10_WALLOPS             TYPE(WALLOPS)
 320 #define P10_WALLHOPS            TYPE(WALLHOPS)
 321 #define P10_WALLUSERS           TYPE(WALLUSERS)
 322 #define P10_WALLVOICES          TYPE(WALLVOICES)
 323 #define P10_WHO                 TYPE(WHO)
 324 #define P10_WHOIS               TYPE(WHOIS)
 325 #define P10_WHOWAS              TYPE(WHOWAS)
 326 #define P10_EXEMPT              TYPE(EXEMPT)
 327
 328 /* Servers claiming to have a boot or link time before PREHISTORY
 329  * trigger errors to the log.  We hope no server has been running
 330  * constantly since September 1994.  :)
 331  */
 332 #define PREHISTORY 780000000
 333
 334 #define MODELEN                 40 + KEYLEN
 335
 336 static struct server *servers_num[64*64];
 337 static privmsg_func_t *privmsg_funcs;
 338 static unsigned int num_privmsg_funcs;
 339 static privmsg_func_t *notice_funcs;
 340 static unsigned int num_notice_funcs;
 341 static struct dict *unbursted_channels;
 342 static const char *his_servername;
 343 static const char *his_servercomment;
 344 static int extended_accounts;
 345
 346 /* These correspond to 1 << X:      012345678901234567 */
 347 const char irc_user_mode_chars[] = "o iw dkgn        I";
 348
 349 static struct userNode *AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip);
 350
 351 extern int off_channel;
 352 extern int DefConLevel;
 353 extern int DefConTimeOut;
 354 extern char *DefConChanModes;
 355
 356 static int parse_oplevel(char *str);
 357
 358 char privbuf[512] = "";
 359
 360 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 361  * server and Y's indentifying the client on that server. */
 362 struct server*
 363 GetServerN(const char *numeric)
 364 {
 365     switch (strlen(numeric)) {
 366     default:
 367         return servers_num[base64toint(numeric, 2)];
 368     case 4:
 369     case 3:
 370     case 1:
 371         return servers_num[base64toint(numeric, 1)];
 372     case 0:
 373         return NULL;
 374     }
 375 }
 376
 377 struct userNode*
 378 GetUserN(const char *numeric) /* using numeric */
 379 {
 380     struct userNode *un;
 381     struct server *s;
 382     int n, slen, ulen;
 383
 384     switch (strlen(numeric)) {
 385     default:
 386         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 387         return NULL;
 388     case 5: slen = 2; ulen = 3; break;
 389     case 4: slen = 1; ulen = 3; break;
 390     case 3: slen = 1; ulen = 2; break;
 391     case 2: case 1: case 0:
 392         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 393         return NULL;
 394     }
 395     if (!(s = servers_num[base64toint(numeric, slen)])) {
 396         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 397         return NULL;
 398     }
 399     n = base64toint(numeric+slen, ulen) & s->num_mask;
 400     if (!(un = s->users[n])) {
 401         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 402     }
 403     return un;
 404 }
 405
 406 extern struct userNode *opserv;
 407 static void
 408 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 409 {
 410     char *cmd;
 411     /* if its a version reply, do an alert check (only alerts with version=something) */
 412     if(bot == opserv) {
 413         if(text[0] == '\001') {
 414             text++;
 415             cmd = mysep(&text, " ");
 416             if(!irccasecmp(cmd, "VERSION")) {
 417                 char *version = mysep(&text, "\n");
 418                 if(!version)
 419                     version = "";
 420                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 421                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 422                 user->version_reply = strdup(version);
 423                 /* TODO: put this in the db */
 424                 if(match_ircglob(version, "WebTV;*"))
 425                     user->no_notice = true; /* webbies cant see notices */
 426             }
 427         }
 428     }
 429 }
 430
 431
 432 static void
 433 privmsg_user_helper(struct userNode *un, void *data)
 434 {
 435     struct privmsg_desc *pd = data;
 436     unsigned int num = un->num_local;
 437     if (!pd->is_notice) {
 438         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 439             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 440         }
 441     } else {
 442         if ((num < num_notice_funcs) && notice_funcs[num]) {
 443             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 444             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 445         }
 446     }
 447 }
 448
 449 /* equiv to user doing /connect server port target */
 450 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 451 {
 452     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 453 }
 454
 455 void
 456 irc_squit_route(struct server *srv, const char *message, ...)
 457 {
 458     va_list arg_list;
 459     char buffer[MAXLEN];
 460     va_start(arg_list, message);
 461     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 462     buffer[MAXLEN-1] = 0;
 463
 464     /* When would we squit ourselves exactly?? -Rubin */
 465     if(srv == self && cManager.uplink->state == CONNECTED ) {
 466         unsigned int i;
 467
 468         /* Quit all clients linked to me. */
 469         for(i = 0; i <= self->num_mask; i++) {
 470             if(!self->users[i])
 471                 continue;
 472             irc_quit(self->users[i], buffer);
 473         }
 474     }
 475
 476     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 477
 478     if(srv == self) {
 479         /* Force a reconnect to the currently selected server. */
 480         cManager.uplink->tries = 0;
 481         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 482         close_socket();
 483     }
 484 }
 485
 486 void
 487 irc_server(struct server *srv)
 488 {
 489     char extranum[COMBO_NUMERIC_LEN+1];
 490
 491     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 492     if (srv == self) {
 493         putsock(P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " J10 %s%s +s6 :%s",
 494                 srv->name, srv->hops+1, srv->boot, srv->link_time, srv->numeric, extranum, srv->description);
 495     } else {
 496         putsock("%s " P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " %c10 %s%s +s6 :%s",
 497                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link_time, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 498     }
 499 }
 500
 501 void
 502 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 503 {
 504     if (strlen(input) == 6) {
 505         unsigned int value;
 506         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 507         value = base64toint(input, 6);
 508         if (value)
 509             ip->in6[5] = htons(65535);
 510         ip->in6[6] = htons(value >> 16);
 511         ip->in6[7] = htons(value & 65535);
 512     } else {
 513         unsigned int pos = 0;
 514         do {
 515             if (*input == '_') {
 516                 unsigned int left;
 517                 for (left = (25 - strlen(input)) / 3; left; left--)
 518                     ip->in6[pos++] = 0;
 519                 input++;
 520             } else {
 521                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 522                 input += 3;
 523             }
 524         } while (pos < 8);
 525     }
 526 }
 527
 528 void
 529 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 530 {
 531     if (!irc_in_addr_is_valid(*ip)) {
 532         strcpy(output, "AAAAAA");
 533     } else if (irc_in_addr_is_ipv4(*ip)) {
 534         unsigned int in4;
 535         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 536         inttobase64(output, in4, 6);
 537         output[6] = '\0';
 538     } else if (irc_in_addr_is_ipv6(*ip)) {
 539         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 540         /* Can start by printing out the leading non-zero parts. */
 541         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 542             inttobase64(output, ntohs(ip->in6[ii]), 3);
 543             output += 3;
 544         }
 545         /* Find the longest run of zeros. */
 546         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 547             if (!ip->in6[ii])
 548                 curr_zeros++;
 549             else if (curr_zeros > max_zeros) {
 550                 max_start = ii - curr_zeros;
 551                 max_zeros = curr_zeros;
 552                 curr_zeros = 0;
 553             }
 554         }
 555         if (curr_zeros > max_zeros) {
 556             max_start = ii - curr_zeros;
 557             max_zeros = curr_zeros;
 558             curr_zeros = 0;
 559         }
 560         /* Print the rest of the address */
 561         for (ii = zero; ii < 8; ) {
 562             if ((ii == max_start) && max_zeros) {
 563                 *output++ = '_';
 564                 ii += max_zeros;
 565             } else {
 566                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 567                 output += 3;
 568             }
 569         }
 570         *output = '\0';
 571     } else {
 572         strcpy(output, "???");
 573     }
 574 }
 575
 576 void
 577 irc_user(struct userNode *user)
 578 {
 579     char b64ip[25];
 580     if (!user || IsDummy(user))
 581         return;
 582     irc_p10_ntop(b64ip, &user->ip);
 583     if (user->modes) {
 584         char modes[32];
 585
 586         irc_user_modes(user, modes, sizeof(modes));
 587         /* we don't need to put the + in modes because it's in the format string. */
 588         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s +%s %s %s :%s",
 589                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 590     } else {
 591         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s %s %s :%s",
 592                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 593     }
 594 }
 595
 596 void
 597 irc_rename(struct userNode *user, const char *new_handle)
 598 {
 599     if(extended_accounts)
 600         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 601 }
 602
 603 void
 604 irc_delete(struct userNode *user)
 605 {
 606     if(extended_accounts)
 607         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 608 }
 609
 610 void
 611 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 612 {
 613     if(extended_accounts)
 614         putsock("%s " P10_ACCOUNT " %s R %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 615     else
 616         putsock("%s " P10_ACCOUNT " %s %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 617 }
 618
 619 void
 620 irc_fakehost(struct userNode *user, const char *host)
 621 {
 622     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 623 }
 624
 625 void
 626 irc_regnick(UNUSED_ARG(struct userNode *user))
 627 {
 628     /* no operation here */
 629 }
 630
 631 void
 632 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 633 {
 634     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 635 }
 636
 637 void
 638 irc_fetchtopic(struct userNode *from, const char *to)
 639 {
 640     if (!from || !to)
 641         return;
 642     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 643 }
 644
 645 void
 646 irc_squit(struct server *srv, const char *message, const char *service_message)
 647 {
 648     if (!service_message)
 649         service_message = message;
 650
 651     /* Are we leaving the network? */
 652     if (srv == self && cManager.uplink->state == CONNECTED) {
 653         unsigned int i;
 654
 655         /* Quit all clients linked to me. */
 656         for (i = 0; i <= self->num_mask; i++) {
 657             if (!self->users[i])
 658                 continue;
 659             irc_quit(self->users[i], service_message);
 660         }
 661     }
 662
 663     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 664
 665     if (srv == self) {
 666         /* Force a reconnect to the currently selected server. */
 667         cManager.uplink->tries = 0;
 668         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 669         close_socket();
 670     }
 671 }
 672
 673 void
 674 irc_wallchops(struct userNode *from, const char *to, const char *message)
 675 {
 676     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 677 }
 678
 679 void
 680 irc_wallops(const char *format, ...)
 681 {
 682     va_list arg_list;
 683     char buffer[MAXLEN];
 684     va_start(arg_list, format);
 685     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 686     buffer[MAXLEN-1] = 0;
 687     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 688 }
 689
 690 static int
 691 deliver_to_dummy(struct userNode *source, struct userNode *dest, const char *message, int type)
 692 {
 693     unsigned int num;
 694
 695     if (!dest || !IsDummy(dest) || !IsLocal(dest))
 696         return 0;
 697     num = dest->num_local;
 698     switch (type) {
 699     default:
 700         if ((num < num_notice_funcs) && notice_funcs[num])
 701             notice_funcs[num](source, dest, message, 0);
 702         break;
 703     case 1:
 704         if ((num < num_privmsg_funcs) && privmsg_funcs[num])
 705             privmsg_funcs[num](source, dest, message, 0);
 706         break;
 707     }
 708     return 1;
 709 }
 710
 711 void
 712 irc_notice(struct userNode *from, const char *to, const char *message)
 713 {
 714     if (to[0] == '#' || to[0] == '$'
 715         || !deliver_to_dummy(from, GetUserN(to), message, 0))
 716         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 717 }
 718
 719 void
 720 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 721 {
 722     if (!deliver_to_dummy(from, to, message, 0))
 723         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 724 }
 725
 726 void
 727 irc_privmsg(struct userNode *from, const char *to, const char *message)
 728 {
 729     if (to[0] == '#' || to[0] == '$'
 730         || !deliver_to_dummy(from, GetUserN(to), message, 1))
 731         putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 732 }
 733
 734 void
 735 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 736 {
 737     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 738 }
 739
 740 void
 741 irc_version_user(struct userNode *from, struct userNode *to)
 742 {
 743     irc_privmsg_user(from, to, "\001VERSION\001");
 744 }
 745
 746 void
 747 irc_eob(void)
 748 {
 749     putsock("%s " P10_EOB, self->numeric);
 750 }
 751
 752 void
 753 irc_eob_ack(void)
 754 {
 755     putsock("%s " P10_EOB_ACK, self->numeric);
 756
 757     char *nick;
 758     const char *str;
 759     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 760     nick = strdup(str);
 761
 762     if (nick && (DefConLevel < 5)) {
 763         DefConProcess(GetUserH(nick));
 764
 765         if (DefConTimeOut > 0)
 766             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 767     }
 768 }
 769
 770 void
 771 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 772 {
 773     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 774 }
 775
 776 void
 777 irc_ping(const char *payload)
 778 {
 779     putsock("%s " P10_PING " :%s", self->numeric, payload);
 780 }
 781
 782 void
 783 irc_pong(const char *who, const char *data)
 784 {
 785     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 786 }
 787
 788 void
 789 irc_pong_asll(const char *who, const char *orig_ts)
 790 {
 791     char *delim;
 792     struct timeval orig;
 793     struct timeval sys_now;
 794     int diff;
 795
 796     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 797     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 798     gettimeofday(&sys_now, NULL);
 799     diff = (sys_now.tv_sec - orig.tv_sec) * 1000 + (sys_now.tv_usec - orig.tv_usec) / 1000;
 800     putsock("%s " P10_PONG " %s %s %d %lu.%06lu", self->numeric, who, orig_ts, diff, (unsigned long)sys_now.tv_sec, (unsigned long)sys_now.tv_usec);
 801 }
 802
 803 void
 804 irc_pass(const char *passwd)
 805 {
 806     putsock(P10_PASS " :%s", passwd);
 807 }
 808
 809 void
 810 irc_introduce(const char *passwd)
 811 {
 812     void timed_send_ping(void *data);
 813
 814     self->self_burst = self->burst = 1;
 815     irc_pass(passwd);
 816     irc_server(self);
 817     burst_length = 0;
 818     timeq_add(now + ping_freq, timed_send_ping, 0);
 819 }
 820
 821 void
 822 irc_gline(struct server *srv, struct gline *gline, int silent)
 823 {
 824     putsock("%s " P10_GLINE " %s +%s " FMT_TIME_T " " FMT_TIME_T " :%s<%s> %s",
 825             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 826 }
 827
 828 void
 829 irc_shun(struct server *srv, struct shun *shun)
 830 {
 831     putsock("%s " P10_SHUN " %s +%s " FMT_TIME_T " :<%s> %s",
 832             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 833 }
 834
 835 void
 836 irc_settime(const char *srv_name_mask, time_t new_time)
 837 {
 838     ioset_set_time(new_time);
 839     if (!strcmp(srv_name_mask, "*"))
 840         srv_name_mask = "";
 841     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 842 }
 843
 844 void
 845 irc_ungline(const char *mask)
 846 {
 847     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 848 }
 849
 850 void
 851 irc_unshun(const char *mask)
 852 {
 853     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 854 }
 855
 856 void
 857 irc_burst(struct chanNode *chan)
 858 {
 859     char burst_line[512];
 860     int pos, base_len, len;
 861     struct modeNode *mn;
 862     struct banNode *bn;
 863     struct exemptNode *en;
 864     long last_mode=-1;
 865     unsigned int first_ban;
 866     unsigned int first_exempt;
 867     unsigned int n;
 868
 869     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 870                        self->numeric, chan->name, chan->timestamp);
 871     len = irc_make_chanmode(chan, burst_line+base_len);
 872     pos = base_len + len;
 873     if (len > 0 && chan->members.used > 0)
 874         burst_line[pos++] = ' ';
 875
 876     if(chan->members.used < 1)
 877         return; /* dont burst empty channels (created by discrims) */
 878     /* dump the users */
 879     for (n=0; n<chan->members.used; n++) {
 880         mn = chan->members.list[n];
 881         if (pos > 500) {
 882             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 883             putsock("%s", burst_line);
 884             pos = base_len;
 885             last_mode = -1;
 886         }
 887
 888         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 889         pos += strlen(mn->user->numeric);
 890         if (mn->modes && (mn->modes != last_mode)) {
 891             last_mode = mn->modes;
 892             burst_line[pos++] = ':';
 893             if (last_mode & MODE_CHANOP)
 894                 burst_line[pos++] = 'o';
 895             if (last_mode & MODE_HALFOP)
 896                 burst_line[pos++] = 'h';
 897             if (last_mode & MODE_VOICE)
 898                 burst_line[pos++] = 'v';
 899         }
 900         if ((n+1)<chan->members.used)
 901             burst_line[pos++] = ',';
 902     }
 903     if (chan->banlist.used) {
 904         /* dump the bans */
 905         first_ban = 1;
 906
 907         for (n=0; n<chan->banlist.used; ) {
 908             if (first_ban && (pos < 500)) {
 909                 burst_line[pos++] = ':';
 910                 burst_line[pos++] = '%';
 911             }
 912             bn = chan->banlist.list[n];
 913             len = strlen(bn->ban);
 914             if (pos + 2 + len < 505) {
 915                 memcpy(burst_line + pos, bn->ban, len);
 916                 pos += len;
 917                 burst_line[pos++] = ' ';
 918                 first_ban = 0;
 919                 n++;
 920             } else {
 921                 burst_line[pos-1] = 0;
 922                 putsock("%s", burst_line);
 923                 pos = base_len;
 924                 first_ban = 1;
 925             }
 926         }
 927     }
 928     if (chan->exemptlist.used) {
 929         /* dump the exempts */
 930         first_exempt = 1;
 931
 932         for (n=0; n<chan->exemptlist.used; ) {
 933             if (first_exempt && (pos < 500)) {
 934                 burst_line[pos++] = ' ';
 935                 burst_line[pos++] = '~';
 936                 burst_line[pos++] = ' ';
 937             }
 938             en = chan->exemptlist.list[n];
 939             len = strlen(en->exempt);
 940             if (pos + 2 + len < 505) {
 941                 memcpy(burst_line + pos, en->exempt, len);
 942                 pos += len;
 943                 burst_line[pos++] = ' ';
 944                 first_exempt = 0;
 945                 n++;
 946             } else {
 947                 burst_line[pos-1] = 0;
 948                 putsock("%s", burst_line);
 949                 pos = base_len;
 950                 first_exempt = 1;
 951             }
 952         }
 953     }
 954     /* print the last line */
 955     burst_line[pos] = 0;
 956     putsock("%s", burst_line);
 957 }
 958
 959 void
 960 irc_quit(struct userNode *user, const char *message)
 961 {
 962     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 963 }
 964
 965 void
 966 irc_error(const char *to, const char *message)
 967 {
 968     if (to) {
 969         putsock("%s " P10_ERROR " :%s", to, message);
 970     } else {
 971         putsock(":%s " P10_ERROR " :%s", self->name, message);
 972     }
 973 }
 974
 975 void
 976 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 977 {
 978     if (from) {
 979         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 980                 from->numeric, target->numeric, self->name, from->nick, message);
 981     } else {
 982         putsock("%s " P10_KILL " %s :%s (%s)",
 983                 self->numeric, target->numeric, self->name, message);
 984     }
 985 }
 986
 987 void
 988 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 989 {
 990     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 991     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 992             (from ? from->numeric : self->numeric),
 993             target->name, modes, target->timestamp);
 994 }
 995
 996 /* Added to allow services to mode users
 997    2005 - 8 - 10 by Life4Christ
 998 */
 999 void
1000 irc_umode(struct userNode *target, const char *modes)
1001 {
1002     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
1003 }
1004
1005
1006 void
1007 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
1008 {
1009     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
1010 }
1011
1012 void
1013 irc_silence(struct userNode *who, const char *mask, int add)
1014 {
1015     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
1016 }
1017
1018 void
1019 irc_join(struct userNode *who, struct chanNode *what)
1020 {
1021     if (what->members.used == 1) {
1022         putsock("%s " P10_CREATE " %s "FMT_TIME_T,
1023                 who->numeric, what->name, what->timestamp);
1024     } else {
1025         putsock("%s " P10_JOIN " %s "FMT_TIME_T, who->numeric, what->name, what->timestamp);
1026     }
1027 }
1028
1029 void
1030 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1031 {
1032     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1033 }
1034
1035 void
1036 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1037 {
1038     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1039 }
1040
1041 void
1042 irc_svsquit(struct userNode *from, struct userNode *who, char const *reason)
1043 {
1044     putsock("%s " P10_SVSQUIT " %s :%s", from->uplink->numeric, who->numeric, reason);
1045 }
1046
1047 void
1048 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1049 {
1050     const char *numeric;
1051     struct modeNode *mn = GetUserMode(channel, who);
1052     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1053     putsock("%s " P10_KICK " %s %s :%s",
1054             numeric, channel->name, target->numeric, msg);
1055 }
1056
1057 void
1058 irc_stats(struct userNode *from, struct server *target, char type)
1059 {
1060     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1061 }
1062
1063 void
1064 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1065 {
1066     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1067 }
1068
1069 void
1070 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1071 {
1072     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1073                                          message ? message : "");
1074
1075 }
1076
1077 void
1078 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1079 {
1080     if (reason) {
1081         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1082     } else {
1083         putsock("%s " P10_PART " %s", who->numeric, what->name);
1084     }
1085 }
1086
1087 void
1088 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1089 {
1090
1091    int type = 4, host_in_topic = 0, hasident = 0;
1092    const char *hstr, *tstr;
1093    char *host, *hostmask;
1094    char shost[MAXLEN];
1095    char sident[MAXLEN];
1096
1097    tstr = conf_get_data("server/type", RECDB_QSTRING);
1098    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1099    if(tstr)
1100      type = atoi(tstr);
1101    else
1102      type = 4;/* default to 040 style topics */
1103
1104    if (hstr) {
1105       if (IsFakeHost(who))
1106           safestrncpy(shost, who->fakehost, sizeof(shost));
1107       else if (IsSetHost(who)) {
1108           hostmask = strdup(who->sethost);
1109           if ((host = (strrchr(hostmask, '@')))) {
1110               hasident = 1;
1111               *host++ = '\0';
1112           } else
1113               host = hostmask;
1114
1115           if (hasident)
1116               safestrncpy(sident, hostmask, sizeof(shost));
1117           else
1118               safestrncpy(sident, who->ident, sizeof(shost));
1119
1120           safestrncpy(shost, host, sizeof(shost));
1121       } else
1122           safestrncpy(shost, who->hostname, sizeof(shost));
1123
1124       host_in_topic = atoi(hstr);
1125    }
1126
1127    if (type >= 5) {
1128      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1129              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1130              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1131    } else {
1132      who = service;
1133      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1134    }
1135 }
1136
1137 void
1138 irc_raw(const char *what)
1139 {
1140     putsock("%s", what);
1141 }
1142
1143 void
1144 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1145 {
1146     va_list arg_list;
1147     char buffer[MAXLEN];
1148     va_start(arg_list, format);
1149     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1150     buffer[MAXLEN-1] = 0;
1151     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1152 }
1153
1154 void
1155 irc_mark(struct userNode *user, char *mark)
1156 {
1157     char *host = user->hostname;
1158
1159     /* TODO: Allow mark overwrite. If they are marked, and their fakehost is oldmark.hostname, update it to newmark.hostname so mark can be called multiple times. Probably requires ircd modification also */
1160     if(user->mark)
1161         return;
1162
1163     /* if the mark will put us over the  host length, clip some off the left hand side
1164      * to make room...
1165      */
1166     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1167         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1168     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1169     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1170
1171     /* Save it in the user */
1172     user->mark = strdup(mark);
1173
1174     /* If they are not otherwise marked, mark their host with fakehost */
1175     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1176     {
1177         struct modeNode *mn = NULL;
1178         char fakehost[HOSTLEN];
1179         unsigned int count = 0;
1180         unsigned int n = 0;
1181
1182         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1183         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1184
1185         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1186         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1187
1188         for (n=count=0; n<user->channels.used; n++) {
1189             mn = user->channels.list[n];
1190             if (strlen(mn->channel->name) >= 1) /* Sanity */
1191                 check_bans(user, mn->channel->name);
1192         }
1193     }
1194 }
1195
1196 void irc_sno(unsigned int mask, char const* format, ...) {
1197     va_list arg_list;
1198     char buffer[MAXLEN];
1199     va_start(arg_list, format);
1200     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1201     buffer[MAXLEN-1] = 0;
1202     putsock("%s " CMD_SNO " %d :%s", self->numeric, mask, buffer);
1203 }
1204
1205 static void send_burst(void);
1206
1207 static void
1208 change_nicklen(int new_nicklen)
1209 {
1210     unsigned int nn;
1211     char new_nick[NICKLEN+1];
1212     struct userNode *user;
1213
1214     nicklen = new_nicklen;
1215     /* fix up any users we have here */
1216     for (nn=0; nn<=self->num_mask; nn++) {
1217         if (!(user = self->users[nn]))
1218             continue;
1219         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1220         new_nick[nicklen] = 0;
1221         NickChange(user, new_nick, 1);
1222     }
1223 }
1224
1225 static CMD_FUNC(cmd_whois)
1226 {
1227     struct userNode *from;
1228     struct userNode *who;
1229     char buf[MAXLEN];
1230     unsigned int i, mlen, len;
1231
1232     if (argc < 3)
1233         return 0;
1234     if (!(from = GetUserH(origin))) {
1235         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1236         return 0;
1237     }
1238     if (!(who = GetUserH(argv[2]))) {
1239         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1240         return 1;
1241     }
1242
1243     if (IsFakeHost(who) && IsHiddenHost(who))
1244         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->fakehost, who->info);
1245     else if (IsHiddenHost(who) && who->handle_info && hidden_host_suffix)
1246         irc_numeric(from, RPL_WHOISUSER, "%s %s %s.%s * :%s", who->nick, who->ident, who->handle_info->handle, hidden_host_suffix, who->info);
1247     else
1248         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1249
1250     if (IsService(who) || (from == who)) {
1251         struct modeNode *mn;
1252         mlen = strlen(self->name) + strlen(from->nick) + 12 + strlen(who->nick);
1253         len = 0;
1254         *buf = '\0';
1255         for (i = who->channels.used; i > 0; )
1256         {
1257             mn = who->channels.list[--i];
1258
1259             if (!IsOper(from) && (mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1260                 continue;
1261
1262             if (len + strlen(mn->channel->name) + mlen > MAXLEN - 5)
1263             {
1264                 irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1265                 *buf = '\0';
1266                 len = 0;
1267             }
1268
1269             if (IsDeaf(who))
1270                 *(buf + len++) = '-';
1271             if ((mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1272                 *(buf + len++) = '*';
1273             if (mn->modes & MODE_CHANOP)
1274                 *(buf + len++) = '@';
1275             else if (mn->modes & MODE_HALFOP)
1276                 *(buf + len++) = '%';
1277             else if (mn->modes & MODE_VOICE)
1278                 *(buf + len++) = '+';
1279
1280             if (len)
1281                 *(buf + len) = '\0';
1282             strcpy(buf + len, mn->channel->name);
1283             len += strlen(mn->channel->name);
1284             strcat(buf + len, " ");
1285             len++;
1286         }
1287         if (buf[0] != '\0')
1288             irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1289     }
1290
1291     if (his_servername && his_servercomment && !IsOper(from) && from != who)
1292         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1293     else
1294         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1295
1296     if (IsAway(who))
1297         irc_numeric(from, RPL_AWAY, "%s :Away", who->nick);
1298     if (IsOper(who))
1299         irc_numeric(from, RPL_WHOISOPERATOR, "%s :%s", who->nick, IsLocal(who) ? "is a megalomaniacal power hungry tyrant" : "is an IRC Operator");
1300     if (who->handle_info)
1301         irc_numeric(from, RPL_WHOISACCOUNT, "%s %s :is logged in as", who->nick, who->handle_info->handle);
1302     if (IsHiddenHost(who) && who->handle_info && (IsOper(from) || from == who))
1303         irc_numeric(from, RPL_WHOISACTUALLY, "%s %s@%s %s :Actual user@host, Actual IP", who->nick, who->ident, who->hostname, irc_ntoa(&who->ip));
1304     if (IsLocal(who) && !IsService(who) && (IsOper(from) || from == who))
1305         irc_numeric(from, RPL_WHOISIDLE, "%s %ld %ld :seconds idle, signon time", who->nick, now - who->idle_since, who->timestamp);
1306
1307     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1308     return 1;
1309 }
1310
1311 static CMD_FUNC(cmd_server)
1312 {
1313     struct server *srv;
1314     const char *str;
1315
1316     if (argc < 8)
1317         return 0;
1318     if (self->uplink) {
1319         /* another server introduced us */
1320         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1321         if (!srv)
1322             return 0;
1323         srv->self_burst = argv[5][0] == 'J';
1324         srv->burst = 1;
1325     } else {
1326         /* this must be our uplink */
1327         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1328         if (!srv)
1329             return 0;
1330         srv->self_burst = argv[5][0] == 'J';
1331         srv->burst = 1;
1332         if ((argv[7][0] == '+') && !force_n2k) {
1333             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1334         }
1335         send_burst();
1336     }
1337
1338     /* Fix up our timestamps if necessary. */
1339     if (srv->boot <= PREHISTORY) {
1340         /* Server from the mists of time.. */
1341         if (srv->hops == 1) {
1342             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1343         }
1344     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1345                && enabled_string(str)) {
1346         /* If we have a reliable clock, we just keep our current time. */
1347     } else {
1348         if (srv->boot <= self->boot) {
1349             /* The other server is older than us.  Accept their timestamp.
1350              * Alternately, we are same age, but we accept their time
1351              * since we are linking to them. */
1352             self->boot = srv->boot;
1353             ioset_set_time(srv->link_time
1354 );
1355         }
1356     }
1357     if (srv == self->uplink) {
1358         extern time_t burst_begin;
1359         burst_begin = now;
1360     }
1361     return 1;
1362 }
1363
1364
1365 static CMD_FUNC(cmd_eob)
1366 {
1367     struct server *sender;
1368     dict_iterator_t it;
1369
1370     if (!(sender = GetServerH(origin)))
1371         return 0;
1372     if (sender == self->uplink) {
1373         cManager.uplink->state = CONNECTED;
1374         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1375             irc_burst(iter_data(it));
1376         dict_delete(unbursted_channels);
1377         unbursted_channels = NULL;
1378         irc_eob();
1379         irc_eob_ack();
1380
1381         /* now that we know who our uplink is,
1382          * we can center the routing map and activate auto-routing.
1383          */
1384         //activate_routing(NULL, NULL, NULL);
1385         routing_init();
1386     }
1387     sender->self_burst = 0;
1388     recalc_bursts(sender);
1389     call_server_link_funcs(sender);
1390     /* let auto-routing figure out if we were
1391      * wating on this server to link a child to it */
1392     /* DONT call this if uplink is _US_ */
1393     if(sender->uplink != self)
1394         routing_handle_connect(sender->name, sender->uplink->name);
1395     return 1;
1396 }
1397
1398 static CMD_FUNC(cmd_eob_ack)
1399 {
1400     extern time_t burst_begin;
1401
1402     if (GetServerH(origin) == self->uplink) {
1403         burst_length = now - burst_begin;
1404         self->self_burst = self->burst = 0;
1405     }
1406     cManager.uplink->state = CONNECTED;
1407     return 1;
1408 }
1409
1410 static CMD_FUNC(cmd_rping)
1411 {
1412     struct server *dest;
1413
1414     if (!(dest = GetServerN(argv[1])))
1415         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1416
1417     if (dest == self)
1418         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1419
1420     return 1;
1421 }
1422
1423 static CMD_FUNC(cmd_ping)
1424 {
1425     struct server *srv;
1426     struct userNode *un;
1427
1428     if (argc > 3)
1429         irc_pong_asll(argv[2], argv[3]);
1430     else if ((srv = GetServerH(origin)))
1431         irc_pong(self->name, srv->numeric);
1432     else if ((un = GetUserH(origin)))
1433         irc_pong(self->name, un->numeric);
1434     else
1435         irc_pong(self->name, origin);
1436
1437     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1438     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1439     timeq_add(now + ping_freq, timed_send_ping, 0);
1440     received_ping();
1441     return 1;
1442 }
1443
1444 static CMD_FUNC(cmd_error_nick)
1445 {
1446     /* Go back to original IRC length .. and try to reconnect :/ */
1447     change_nicklen(9);
1448     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1449     return 1;
1450 }
1451
1452 struct create_desc {
1453     struct userNode *user;
1454     time_t when;
1455 };
1456
1457 static void
1458 join_helper(struct chanNode *chan, void *data)
1459 {
1460     struct create_desc *cd = data;
1461     AddChannelUser(cd->user, chan);
1462 }
1463
1464 static void
1465 create_helper(char *name, void *data)
1466 {
1467     struct create_desc *cd = data;
1468
1469     if (!strcmp(name, "0")) {
1470         while (cd->user->channels.used > 0)
1471             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1472         return;
1473     }
1474
1475     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1476 }
1477
1478 static CMD_FUNC(cmd_create)
1479 {
1480     struct create_desc cd;
1481     struct userNode *user;
1482
1483     if ((argc < 3) || !(user = GetUserH(origin)))
1484         return 0;
1485     cd.user = user;
1486     cd.when = atoi(argv[2]);
1487     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1488     return 1;
1489 }
1490
1491 static CMD_FUNC(cmd_join)
1492 {
1493     struct create_desc cd;
1494
1495     if (!(cd.user = GetUserH(origin)))
1496         return 0;
1497     if (argc < 2)
1498         return 0;
1499     else if (argc < 3)
1500         cd.when = now;
1501     else
1502         cd.when = atoi(argv[2]);
1503     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1504     return 1;
1505 }
1506
1507 static CMD_FUNC(cmd_svsjoin)
1508 {
1509     struct create_desc cd;
1510
1511     if (!(cd.user = GetUserH(argv[1])))
1512         return 0;
1513     if (argc < 3)
1514         return 0;
1515     else if (argc < 4)
1516         cd.when = now;
1517     else
1518         cd.when = atoi(argv[3]);
1519     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1520     return 1;
1521 }
1522
1523 static CMD_FUNC(cmd_pong)
1524 {
1525     if (argc < 3)
1526         return 0;
1527     if (!strcmp(argv[2], self->name)) {
1528         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1529         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1530         timeq_add(now + ping_freq, timed_send_ping, 0);
1531         received_ping();
1532     }
1533     return 1;
1534 }
1535
1536 static CMD_FUNC(cmd_nick)
1537 {
1538     struct userNode *user;
1539     if ((user = GetUserH(origin))) {
1540         /* nick change (since the source is a user numeric) */
1541         if (argc < 2)
1542             return 0;
1543         NickChange(user, argv[1], 1);
1544     } else {
1545         struct server *serv;
1546         struct userNode *nuser;
1547         char modes[MAXLEN];
1548         /* new nick */
1549         if (argc < 9)
1550             return 0;
1551         serv = GetServerH(origin);
1552         if (argc > 9)
1553             unsplit_string(argv+6, argc-9, modes);
1554         else
1555             strcpy(modes, "+");
1556         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1557     }
1558     return 1;
1559 }
1560
1561 static CMD_FUNC(cmd_account)
1562 {
1563     struct userNode *user;
1564     struct server *server;
1565     struct handle_info *hi;
1566
1567     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1568         return 0; /* Origin must be server. */
1569
1570     /* This next line appears to tremple origin.. why? */
1571     user = GetUserN(argv[1]);
1572     if (!user)
1573         return 1; /* A QUIT probably passed the ACCOUNT. */
1574
1575     if(!extended_accounts) /* any need for this function without? */
1576         return 1;
1577
1578     if(!strcmp(argv[2],"C"))
1579     {
1580         if((hi = loc_auth(NULL, argv[4], argv[5], NULL)))
1581         {
1582             /* Return a AC A */
1583             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1584
1585                         log_module(MAIN_LOG, LOG_DEBUG, "loc_auth: %s\n", user->nick);
1586          }
1587         else
1588         {
1589             /* Return a AC D */
1590             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1591         }
1592         return 1;
1593     }
1594     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1595     {
1596         if((hi = loc_auth(NULL, argv[5], argv[6], argv[4] )))
1597         {
1598             /* Return a AC A */
1599             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1600         }
1601         else
1602         {
1603             /* Return a AC D */
1604             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1605         }
1606         return 1;
1607     }
1608     else if(!strcmp(argv[2],"S"))
1609     {
1610         if((hi = loc_auth(argv[5], argv[6], argv[7], argv[4])))
1611         {
1612             /* Return a AC A */
1613             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1614         }
1615         else
1616         {
1617             /* Return a AC D */
1618             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1619         }
1620         return 1;
1621     }
1622     else if(!strcmp(argv[2],"R"))
1623        call_account_func(user, argv[3]);
1624     else
1625         call_account_func(user, argv[2]); /* For backward compatability */
1626     return 1;
1627 }
1628
1629 static CMD_FUNC(cmd_fakehost)
1630 {
1631     struct userNode *user;
1632
1633     if ((argc < 3) || !origin || !GetServerH(origin))
1634         return 0;
1635     if (!(user = GetUserN(argv[1])))
1636         return 1;
1637     assign_fakehost(user, argv[2], 0);
1638     return 1;
1639 }
1640
1641 static struct {
1642   char        *name;
1643   unsigned int priv;
1644 } privtab[] = {
1645 #define P(priv)         { #priv, PRIV_ ## priv }
1646   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1647   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1648   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1649   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1650   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1651   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1652   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1653   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1654   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1655   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1656   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS), P(DISPLAY_MODE),
1657   P(FREEFORM),       P(REMOVE),         P(SPAMFILTER),
1658 #undef P
1659   { 0, 0 }
1660 };
1661
1662 char *client_report_privs(struct userNode *client)
1663 {
1664   int i;
1665
1666   privbuf[0] = '\0';
1667   for (i = 0; privtab[i].name; i++) {
1668     if (HasPriv(client, privtab[i].priv)) {
1669       strcat(privbuf, privtab[i].name);
1670       strcat(privbuf, " ");
1671     }
1672   }
1673
1674   privbuf[strlen(privbuf)] = 0;
1675
1676   return privbuf;
1677 }
1678
1679 int clear_privs(struct userNode *who) {
1680   int i = 0;
1681   assert(0 != who);
1682
1683   for (i = 0; privtab[i].name; i++)
1684     RevokePriv(who, privtab[i].priv);
1685
1686   return 0;
1687 }
1688
1689 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1690  int i = 0;
1691  assert(0 != priv);
1692  assert(0 != who);
1693
1694   for (i = 0; privtab[i].name; i++) {
1695     if (0 == strcmp(privtab[i].name, priv)) {
1696       if (what == PRIV_ADD)
1697         GrantPriv(who, privtab[i].priv);
1698       else if (what == PRIV_DEL) {
1699         RevokePriv(who, privtab[i].priv);
1700       }
1701     }
1702   }
1703   return 0;
1704 }
1705
1706 int check_priv(char *priv)
1707 {
1708   int i;
1709
1710   for (i = 0; privtab[i].name; i++) {
1711     if (0 == strcmp(privtab[i].name, priv)) {
1712       return 1;
1713     }
1714   }
1715   return 0;
1716 }
1717
1718 void
1719 irc_privs(struct userNode *target, char *flag, int add)
1720 {
1721     client_modify_priv_by_name(target, flag, add);
1722     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1723 }
1724
1725 void
1726 irc_raw_privs(struct userNode *target, const char *privs)
1727 {
1728     putsock("%s " P10_PRIVS " %s %s", self->numeric, target->numeric,  privs);
1729 }
1730
1731 static CMD_FUNC(cmd_privs)
1732 {
1733     char *tstr = NULL;
1734     char buf[512] = "";
1735     char *p = 0;
1736     char *tmp;
1737
1738     int what = PRIV_ADD;
1739     int type = 0;
1740
1741     unsigned int i;
1742
1743     struct server *sender;
1744     struct userNode *user;
1745
1746
1747     tstr = conf_get_data("server/type", RECDB_QSTRING);
1748     if(tstr)
1749         type = atoi(tstr);
1750
1751
1752     if (!(sender = GetServerH(origin))) { /* from oper */
1753         return 1; /* ignore as no services have privs set */
1754     } else { /* from server */
1755         if (type < 5)
1756             return 1; /* silently ignore */
1757
1758         user = argc > 1 ? GetUserN(argv[1]) : NULL;
1759
1760         if (!user)
1761             return 0;
1762
1763         for (i=1; i<argc; i++) {
1764             strcat(buf, argv[i]);
1765             strcat(buf, " ");
1766         }
1767
1768         for (i = 2; i < argc; i++) {
1769             if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1770             if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1771             for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1772                  tmp = x3_strtok(&p, NULL, ",")) {
1773                 if (!strcmp(tmp, "PRIV_NONE")) {
1774                     clear_privs(user);
1775                     break;
1776                 } else
1777                     client_modify_priv_by_name(user, tmp, what);
1778             }
1779         }
1780     }
1781     return 1;
1782 }
1783
1784 static CMD_FUNC(cmd_burst)
1785 {
1786     extern int rel_age;
1787     char modes[MAXLEN], *members = "";
1788     static char exemptlist[MAXLEN], banlist[MAXLEN];
1789     unsigned int next = 3, res = 1;
1790     int ctype = 0, echeck = 0, bcheck = 0;
1791     struct chanData *cData;
1792     struct chanNode *cNode;
1793     struct userNode *un;
1794     struct modeNode *mNode;
1795     long mode;
1796     int oplevel = -1;
1797     char *user, *end, sep;
1798     time_t in_timestamp;
1799     char* parm = NULL;
1800
1801     if (argc < 3)
1802         return 0;
1803     modes[0] = 0;
1804
1805     exemptlist[0] = 0;
1806     banlist[0] = 0;
1807
1808     while (next < argc) {
1809         switch (argv[next][0]) {
1810         case '+': {
1811             const char *pos;
1812             int n_modes;
1813             for (pos=argv[next], n_modes = 1; *pos; pos++)
1814                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1815                     || (*pos == 'U'))
1816                     n_modes++;
1817             if (next + n_modes > argc)
1818                 n_modes = argc - next;
1819             unsplit_string(argv+next, n_modes, modes);
1820             next += n_modes;
1821             break;
1822         }
1823         case '%': {
1824             for(parm = mysep(&argv[next], " "); /* parm = first param */
1825                   parm;   /* While param is not null */
1826                   parm = mysep(&argv[next], " ")  /* parm = next param */
1827                )
1828             {
1829               switch (parm[0]) {
1830                 case '%': {
1831                   ctype = 1;
1832                   break;
1833                 }
1834                 case '~': {
1835                   ctype = 2;
1836                   break;
1837                 }
1838                 default: {
1839                   break;
1840                 }
1841               }
1842               if (ctype == 1) {
1843                 if (bcheck == 0) {
1844                   /* strip % char off start of very first ban */
1845                   if (strlen(parm) > 1) {
1846                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1847                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1848                   }
1849                   bcheck = 1;
1850                 } else {
1851                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1852                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1853                 }
1854               } else if (ctype == 2) {
1855                 if (echeck == 0) {
1856                    echeck = 1;
1857                 } else {
1858                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1859                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1860                 }
1861               }
1862             }
1863             next++;
1864             break;
1865         }
1866         default: members = argv[next++]; break;
1867       }
1868     }
1869
1870     in_timestamp = atoi(argv[2]);
1871     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1872         cNode->timestamp = in_timestamp;
1873         dict_remove(unbursted_channels, cNode->name);
1874         irc_burst(cNode);
1875     }
1876     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1877     cData = cNode->channel_info;
1878
1879     if (!cData) {
1880         if (cNode->modes & MODE_REGISTERED) {
1881             irc_join(opserv, cNode);
1882             irc_mode(opserv, cNode, "-z");
1883             irc_part(opserv, cNode, "");
1884         }
1885     }
1886
1887     /* Burst channel members in now. */
1888     for (user = members, sep = *members, mode = 0; sep; user = end) {
1889         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1890         sep = *end++; end[-1] = 0;
1891         if (sep == ':') {
1892             mode = 0;
1893             while ((sep = *end++)) {
1894                 if (sep == 'o') {
1895                     mode |= MODE_CHANOP;
1896                     oplevel = -1;
1897                 } else if (sep == 'h') {
1898                     mode |= MODE_HALFOP;
1899                     oplevel = -1;
1900                 } else if (sep == 'v') {
1901                     mode |= MODE_VOICE;
1902                     oplevel = -1;
1903                 } else if (isdigit(sep)) {
1904                     mode |= MODE_CHANOP;
1905                     if (oplevel >= 0)
1906                         oplevel += parse_oplevel(end);
1907                     else
1908                         oplevel = parse_oplevel(end);
1909                     while (isdigit(*end)) end++;
1910                 } else
1911                     break;
1912             }
1913             if (rel_age < 0)
1914                 mode = 0;
1915         }
1916         if (!(un = GetUserN(user))) {
1917             res = 0;
1918             continue;
1919         }
1920         if ((mNode = AddChannelUser(un, cNode))) {
1921             mNode->modes = mode;
1922             mNode->oplevel = oplevel;
1923         }
1924     }
1925
1926     return res;
1927 }
1928
1929 /* TODO:
1930  * This is a stub that doesn't actually do anything. It should be completed
1931  * so that bans on *!*@markname.* match users as it does in nefarious
1932  */
1933 static CMD_FUNC(cmd_mark)
1934 {
1935     struct userNode *target;
1936     /*
1937      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1938      */
1939
1940     if(argc < 4)
1941         return 0;
1942     if(!strcasecmp(argv[2], "DNSBL")) {
1943         /* DNSBL <modes> */
1944         return 1;
1945     }
1946     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1947         /* DNSBL_DATA name */
1948         target = GetUserH(argv[1]);
1949         if(!target) {
1950             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1951             return 0;
1952         }
1953         target->mark = strdup(argv[3]);
1954         return 1;
1955
1956     }
1957     else if(!strcasecmp(argv[2], "CVERSION")) {
1958         /* CTCP VERSION mark */
1959         target = GetUserH(argv[1]);
1960         if(!target) {
1961             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
1962             return 0;
1963         }
1964
1965         char *version = unsplit_string(argv + 3, argc - 3, NULL);
1966         if(!version)
1967             version = "";
1968
1969         target->version_reply = strdup(version);
1970
1971         if(match_ircglob(version, "WebTV;*"))
1972             target->no_notice = true; /* webbies cant see notices */
1973
1974         return 1;
1975     }
1976     else if(!strcasecmp(argv[2], "SSLCLIFP")) {
1977         /* SSL fingerprint mark */
1978         target = GetUserH(argv[1]);
1979         if(!target) {
1980             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose SSL fingerprint mark is changing.", argv[1]);
1981             return 0;
1982         }
1983
1984         char *sslfp = unsplit_string(argv + 3, argc - 3, NULL);
1985         if(!sslfp)
1986             sslfp = "";
1987
1988         target->sslfp = strdup(sslfp);
1989
1990         return 1;
1991     }
1992     /* unknown type of mark */
1993     return 1;
1994 }
1995
1996 static CMD_FUNC(cmd_mode)
1997 {
1998     struct chanNode *cn;
1999     struct userNode *un;
2000     char *sethost; // sethost - reed/apples
2001     int i; // sethost - reed/apples
2002
2003     if (argc < 3)
2004         return 0;
2005     if (!IsChannelName(argv[1])) {
2006         un = GetUserH(argv[1]);
2007         if (!un) {
2008             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
2009             return 0;
2010         }
2011         // sethost - reed/apples
2012         if (argc == 3)
2013         mod_usermode(un, argv[2]);
2014         else {
2015           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
2016           i = 0;
2017           while((sethost[i++] = *argv[2]++));
2018           i--;
2019          sethost[i++] = ' ';
2020           while((sethost[i++] = *argv[3]++));
2021           mod_usermode(un, sethost); // sethost - reed/apples
2022         }
2023
2024         return 1;
2025     }
2026
2027     if (!(cn = GetChannel(argv[1]))) {
2028         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2029         return 0;
2030     }
2031     if ((un = GetUserH(origin))) {
2032         struct modeNode *mn;
2033         /* Update idle time for person setting the mode */
2034         if ((mn = GetUserMode(cn, un)))
2035             mn->idle_since = now;
2036     } else {
2037         /* If it came from a server, reset timestamp to re-sync. */
2038         cn->timestamp = atoi(argv[argc-1]);
2039     }
2040
2041     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
2042         const char *str;
2043         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2044         if (str) {
2045             char modes[MODELEN];
2046             struct userNode *opserv = GetUserH(str);
2047
2048             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
2049             irc_make_chanmode(cn, modes);
2050             irc_mode(opserv, cn, modes);
2051             irc_mode(opserv, cn, DefConChanModes);
2052         }
2053         return 1;
2054     }
2055
2056
2057     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
2058 }
2059
2060 static CMD_FUNC(cmd_opmode)
2061 {
2062     struct chanNode *cn;
2063     struct userNode *un;
2064
2065     if (argc < 3)
2066         return 0;
2067
2068     if (!(cn = GetChannel(argv[1]))) {
2069         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2070         return 0;
2071     }
2072     if (!(un = GetUserH(origin))) {
2073         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
2074         return 0;
2075     }
2076     if (!IsOper(un)) {
2077         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
2078         return 0;
2079     }
2080
2081     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
2082 }
2083
2084 static int clear_chanmode(struct chanNode *channel, const char *modes);
2085
2086 static CMD_FUNC(cmd_clearmode)
2087 {
2088     struct chanNode *cn;
2089     struct userNode *un;
2090
2091     if (argc < 3)
2092         return 0;
2093
2094     if (!(cn = GetChannel(argv[1]))) {
2095         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2096         return 0;
2097     }
2098     if (!(un = GetUserH(origin))) {
2099         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
2100         return 0;
2101     }
2102     if (!IsOper(un)) {
2103         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
2104         return 0;
2105     }
2106
2107     return clear_chanmode(cn, argv[2]);
2108 }
2109
2110 static CMD_FUNC(cmd_topic)
2111 {
2112     struct chanNode *cn;
2113     time_t chan_ts, topic_ts;
2114     struct userNode *user;
2115
2116     if (argc < 3)
2117         return 0;
2118     if (!(cn = GetChannel(argv[1]))) {
2119         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
2120         return 0;
2121     }
2122
2123
2124     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
2125         user = GetUserH(origin);
2126         chan_ts = atoi(argv[2]);
2127         topic_ts = atoi(argv[3]);
2128     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2129         user = GetUserH(strtok(argv[2], "!"));
2130         chan_ts = atoi(argv[3]);
2131         topic_ts = atoi(argv[4]);
2132     } else {                      /* Regular IRCu (No Topic Bursting)*/
2133         user = GetUserH(origin);
2134         chan_ts = cn->timestamp;
2135         topic_ts = now;
2136     }
2137
2138     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2139     cn->topic_time = topic_ts;
2140     return 1;
2141 }
2142
2143 static CMD_FUNC(cmd_num_topic)
2144 {
2145     struct chanNode *cn;
2146
2147     if (!argv[0])
2148         return 0; /* huh? */
2149     if (argv[2]) {
2150         cn = GetChannel(argv[2]);
2151         if (!cn) {
2152             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2153             return 0;
2154         }
2155     } else
2156         return 0;
2157
2158     switch (atoi(argv[0])) {
2159     case 331:
2160         cn->topic_time = 0;
2161         break;  /* no topic */
2162     case 332:
2163         if (argc < 4)
2164             return 0;
2165         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2166         break;
2167     case 333:
2168         if (argc < 5)
2169             return 0;
2170         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2171         cn->topic_time = atoi(argv[4]);
2172         break;
2173     default:
2174         return 0; /* should never happen */
2175     }
2176     return 1;
2177 }
2178
2179 static CMD_FUNC(cmd_num_gline)
2180 {
2181     if (argc < 7) {
2182         if (argc < 6)
2183             return 0;
2184         else
2185             gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2186     } else {
2187         if (!strcmp(argv[5], "+"))
2188           gline_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0, 0);
2189     }
2190     return 1;
2191 }
2192
2193 static CMD_FUNC(cmd_num_shun)
2194 {
2195     if (argc < 7) {
2196         if (argc < 6)
2197             return 0;
2198         else
2199             shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2200     } else {
2201         if (!strcmp(argv[5], "+"))
2202             shun_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0);
2203     }
2204     return 1;
2205 }
2206
2207 static CMD_FUNC(cmd_quit)
2208 {
2209     struct userNode *user;
2210     if (argc < 2)
2211         return 0;
2212     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2213      * call DelUser unless we have the user in our grasp. */
2214     if ((user = GetUserH(origin)))
2215         DelUser(user, NULL, false, argv[1]);
2216     return 1;
2217 }
2218
2219 static CMD_FUNC(cmd_kill)
2220 {
2221     struct userNode *user;
2222     if (argc < 2)
2223         return 0;
2224     user = GetUserN(argv[1]);
2225     if (!user) {
2226         /* If we get a KILL for a non-existent user, it could be a
2227          * Ghost response to a KILL we sent out earlier.  So we only
2228          * whine if the target is local.
2229          */
2230         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
2231             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2232         return 0;
2233     }
2234
2235     if (IsLocal(user) && IsService(user)) {
2236         /* TODO: rate limit this so silly things don't happen. */
2237         ReintroduceUser(user);
2238         return 1;
2239     }
2240
2241     DelUser(user, NULL, false, argv[2]);
2242     return 1;
2243 }
2244
2245 static CMD_FUNC(cmd_svspart)
2246 {
2247     struct userNode *user;
2248
2249     if (argc < 3)
2250         return 0;
2251     user = GetUserN(argv[1]);
2252     if (!user)
2253         return 0;
2254     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2255     return 1;
2256 }
2257
2258 static CMD_FUNC(cmd_silence)
2259 {
2260     struct userNode *user;
2261     char *mask;
2262     char *new_mask;
2263     unsigned int i;
2264
2265     if (argc < 2)
2266         return 0;
2267
2268     user = GetUserN(argv[1]);
2269
2270     /* Sanity, go nuts if this happens */
2271     if (!user)
2272         return 0;
2273
2274     /*  We can safely ignore this if a user adding a silence is not
2275      *  ignored. However this brings up a TODO. If a user logs in and
2276      *  they have silences on the IRCd then we need to set them here
2277      *  somehow
2278      */
2279     if (!user->handle_info)
2280         return 1;
2281
2282     mask = argv[2];
2283
2284     if (*mask == '-') {
2285         for (i=0; i<user->handle_info->ignores->used; i++) {
2286             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2287                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2288         }
2289     } else {
2290         for (i=0; i<user->handle_info->ignores->used; i++) {
2291             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2292                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2293         }
2294
2295         new_mask = strdup(mask+1);
2296         string_list_append(user->handle_info->ignores, new_mask);
2297     }
2298     return 1;
2299 }
2300
2301 static CMD_FUNC(cmd_kick)
2302 {
2303     if (argc < 3)
2304         return 0;
2305     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2306     return 1;
2307 }
2308
2309 static CMD_FUNC(cmd_squit)
2310 {
2311     struct server *server;
2312     char *uplink;
2313
2314     if (argc < 4)
2315         return 0;
2316     if (!(server = GetServerH(argv[1])))
2317         return 0;
2318
2319     if (server == self->uplink) {
2320         /* Force a reconnect to the currently selected server. */
2321         cManager.uplink->tries = 0;
2322         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2323         close_socket();
2324         return 1;
2325     }
2326
2327     uplink = strdup(server->uplink->name);
2328     DelServer(server, 0, argv[3]);
2329     /* if its a pingout and pingout connecting is enabled
2330                or its a read error and readerror connecting is enabled
2331                or were doing a "N" and i need to connect that server somewhere */
2332     routing_handle_squit(argv[1], uplink, argv[3]);
2333     free(uplink);
2334     return 1;
2335 }
2336
2337 static CMD_FUNC(cmd_privmsg)
2338 {
2339     struct privmsg_desc pd;
2340     if (argc < 3)
2341         return 0;
2342     pd.user = GetUserH(origin);
2343     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2344         return 1;
2345
2346     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2347         const char *str;
2348         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2349         if (str)
2350             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2351         return 1;
2352     }
2353
2354     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2355         return 1; /* Silently Ignore */
2356
2357     pd.is_notice = 0;
2358     pd.text = argv[argc - 1];
2359     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2360
2361     return 1;
2362 }
2363
2364 static CMD_FUNC(cmd_notice)
2365 {
2366     struct privmsg_desc pd;
2367     struct server *srv;
2368     int nuser = 0;
2369
2370     if (argc != 3)
2371         return 0;
2372
2373     pd.user = GetUserH(origin);
2374     if(!pd.user)
2375         nuser = 1;
2376     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2377     }
2378     else {
2379         pd.is_notice = 1;
2380         pd.text = argv[2];
2381         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2382     }
2383
2384     srv = GetServerH(origin);
2385     if(srv) {
2386         char *sargv[MAXNUMPARAMS];
2387         int sargc;
2388
2389         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2390
2391         if(!strcasecmp(sargv[0], "Connect:")) {
2392             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2393             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2394                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2395             }
2396         }
2397         else if(!strcasecmp(sargv[0], "Link")) {
2398             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2399              *
2400              * :Link with laptop.afternet.org cancelled: Connection refused
2401              */
2402             if(!strcasecmp(sargv[3], "cancelled:")) {
2403                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2404             }
2405         }
2406     }
2407     return 1;
2408 }
2409
2410 static CMD_FUNC(cmd_away)
2411 {
2412     struct userNode *uNode;
2413
2414     uNode = GetUserH(origin);
2415     if (!uNode)
2416         return 1;
2417     if (argc < 2)
2418         uNode->modes &= ~FLAGS_AWAY;
2419     else
2420         uNode->modes |= FLAGS_AWAY;
2421     return 1;
2422 }
2423
2424 static CMD_FUNC(cmd_gline)
2425 {
2426     if (argc < 3)
2427         return 0;
2428     if (argv[2][0] == '+') {
2429         if (argc < 5)
2430             return 0;
2431         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2432         return 1;
2433     } else if (argv[2][0] == '-') {
2434         gline_remove(argv[2]+1, 0);
2435         return 1;
2436     } else
2437         return 0;
2438 }
2439
2440 static CMD_FUNC(cmd_sgline)
2441 {
2442     struct server *sender;
2443
2444     if (argc < 4)
2445         return 0;
2446
2447     if (!(sender = GetServerH(origin)))
2448         return 0;
2449
2450     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1, 0);
2451     return 1;
2452 }
2453
2454 static CMD_FUNC(cmd_sshun)
2455 {
2456     struct server *sender;
2457
2458     if (argc < 4)
2459         return 0;
2460
2461     if (!(sender = GetServerH(origin)))
2462         return 0;
2463
2464     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1);
2465     return 1;
2466 }
2467
2468 static CMD_FUNC(cmd_shun)
2469 {
2470     if (argc < 3)
2471         return 0;
2472     if (argv[2][0] == '+') {
2473         if (argc < 5)
2474             return 0;
2475         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2476         return 1;
2477     } else if (argv[2][0] == '-') {
2478         shun_remove(argv[2]+1, 0);
2479         return 1;
2480     } else
2481         return 0;
2482 }
2483
2484 static CMD_FUNC(cmd_svsnick)
2485 {
2486     struct userNode *target, *dest;
2487     if ((argc < 4)
2488         || !(target = GetUserN(argv[1]))
2489         || !IsLocal(target)
2490         || (dest = GetUserH(argv[2])))
2491         return 0;
2492     NickChange(target, argv[2], 0);
2493     return 1;
2494 }
2495
2496 void
2497 free_user(struct userNode *user)
2498 {
2499     free(user->nick);
2500     free(user);
2501 }
2502
2503 static void
2504 parse_cleanup(UNUSED_ARG(void *extra))
2505 {
2506     unsigned int nn;
2507     free(of_list);
2508     free(of_list_extra);
2509     free(privmsg_funcs);
2510     num_privmsg_funcs = 0;
2511     free(notice_funcs);
2512     num_notice_funcs = 0;
2513     free(mcf_list);
2514     dict_delete(irc_func_dict);
2515     for (nn=0; nn<dead_users.used; nn++)
2516         free_user(dead_users.list[nn]);
2517     userList_clean(&dead_users);
2518 }
2519
2520 static void
2521 p10_conf_reload(void) {
2522     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2523     his_servername = conf_get_data("server/his_servername", RECDB_QSTRING);
2524     his_servercomment = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2525 }
2526
2527 static void
2528 remove_unbursted_channel(struct chanNode *cNode, UNUSED_ARG(void *extra)) {
2529     if (unbursted_channels)
2530         dict_remove(unbursted_channels, cNode->name);
2531 }
2532
2533 void
2534 init_parse(void)
2535 {
2536     const char *str, *desc;
2537     int numnick, usermask, max_users;
2538     char numer[COMBO_NUMERIC_LEN+1];
2539
2540     /* read config items */
2541     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2542     extended_accounts = str ? enabled_string(str) : 1;
2543     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2544     ping_freq = str ? ParseInterval(str) : 120;
2545     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2546     ping_timeout = str ? ParseInterval(str) : 30;
2547     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2548     force_n2k = str ? enabled_string(str) : 1;
2549     str = conf_get_data("server/numeric", RECDB_QSTRING);
2550     if (!str) {
2551         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2552         exit(1);
2553     }
2554     numnick = atoi(str);
2555     str = conf_get_data("server/max_users", RECDB_QSTRING);
2556     max_users = str ? atoi(str) : 4096;
2557     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2558     usermask--;
2559     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2560         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2561     else
2562         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2563
2564     str = conf_get_data("server/hostname", RECDB_QSTRING);
2565     desc = conf_get_data("server/description", RECDB_QSTRING);
2566     if (!str || !desc) {
2567         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2568         exit(1);
2569     }
2570     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2571     conf_register_reload(p10_conf_reload);
2572
2573     irc_func_dict = dict_new();
2574     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2575     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2576     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2577     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2578     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2579     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2580     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2581     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2582     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2583     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2584     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2585     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2586     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2587     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2588     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2589     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2590     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2591     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2592     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2593     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2594     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2595     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2596     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2597     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2598     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2599     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2600     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2601     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2602     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2603     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2604     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2605     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2606     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2607     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2608     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2609     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2610     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2611     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2612     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2613     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2614     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2615     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2616     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2617     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2618     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2619     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2620     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2621     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2622     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2623     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2624     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2625     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2626     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2627     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2628     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2629     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2630     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2631     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2632     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2633     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2634     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2635     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2636     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2637     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2638     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2639     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2640     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2641     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2642     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2643     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2644     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2645     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2646     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2647     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2648     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2649     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2650     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2651     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2652     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2653     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2654     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2655     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2656
2657     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2658     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2659     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2660     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2661
2662     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2663      * Apparently to obliterate channels from any servers that think they
2664      * exist?
2665      */
2666     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2667     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2668     /* Ignore invites */
2669     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2670     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2671     /* DESYNCH is just informational, so ignore it */
2672     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2673     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2674     /* Ignore channel operator notices. */
2675     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2676     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2677     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2678     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2679     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2680     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2681     /* Ignore opers being silly. */
2682     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2683     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2684     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2685     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2686     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2687     /* Ignore dnsbl exemptions */
2688     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2689     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2690     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2691     /* ignore ALIST for now */
2692     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2693     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2694     /* ignore SPAMFILTER */
2695     dict_insert(irc_func_dict, TOK_SPAMFILTER, cmd_dummy);
2696     dict_insert(irc_func_dict, CMD_SPAMFILTER, cmd_dummy);
2697     /* Ignore remote luser */
2698     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2699     /* We have reliable clock!  Always!  Wraaa! */
2700     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2701     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2702
2703     /* ignore /trace and /motd commands targetted at us */
2704     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2705     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2706     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2707
2708     /* handle topics */
2709     dict_insert(irc_func_dict, "331", cmd_num_topic);
2710     dict_insert(irc_func_dict, "332", cmd_num_topic);
2711     dict_insert(irc_func_dict, "333", cmd_num_topic);
2712     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2713     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2714     /* ban list resetting */
2715     /* "stats g" responses */
2716     dict_insert(irc_func_dict, "230", cmd_dummy); /* ignore stats headers */
2717     dict_insert(irc_func_dict, "247", cmd_num_gline);
2718     dict_insert(irc_func_dict, "542", cmd_num_shun);
2719     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2720     /* other numeric responses we might get */
2721     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2722     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2723     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2724     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2725     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2726     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2727     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2728     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2729     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2730
2731     num_privmsg_funcs = 16;
2732     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2733     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2734
2735     num_notice_funcs = 16;
2736     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2737     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2738
2739     userList_init(&dead_users);
2740     reg_del_channel_func(remove_unbursted_channel, NULL);
2741     reg_exit_func(parse_cleanup, NULL);
2742     // reg_notice_func(opserv, check_ctcp);
2743 }
2744
2745 int
2746 parse_line(char *line, int recursive)
2747 {
2748     char *argv[MAXNUMPARAMS], *origin;
2749     int argc, cmd, res=0;
2750     cmd_func_t *func;
2751
2752     argc = split_line(line, true, MAXNUMPARAMS, argv);
2753     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2754     if (argc > cmd) {
2755         if (cmd) {
2756             if (argv[0][0] == ':') {
2757                 origin = argv[0]+1;
2758             } else if (!argv[0][1] || !argv[0][2]) {
2759                 struct server *sNode = GetServerN(argv[0]);
2760                 origin = sNode ? sNode->name : 0;
2761             } else {
2762                 struct userNode *uNode = GetUserN(argv[0]);
2763                 origin = uNode ? uNode->nick : 0;
2764             }
2765         } else
2766             origin = 0;
2767         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2768             res = func(origin, argc-cmd, argv+cmd);
2769     }
2770     if (!res) {
2771         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2772     } else if (!recursive) {
2773         unsigned int i;
2774         for (i=0; i<dead_users.used; i++)
2775             free_user(dead_users.list[i]);
2776         dead_users.used = 0;
2777     }
2778     return res;
2779 }
2780
2781 static void
2782 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2783 {
2784     char *j, old;
2785
2786     do {
2787         j = target_list;
2788         while (*j != 0 && *j != ',')
2789             j++;
2790         old = *j;
2791         *j = 0;
2792
2793         if (IsChannelName(target_list)
2794             || (target_list[0] == '0' && target_list[1] == '\0')) {
2795             struct chanNode *chan = GetChannel(target_list);
2796
2797             if (chan) {
2798                 if (cf)
2799                     cf(chan, data);
2800             } else {
2801                 if (nc)
2802                     nc(target_list, data);
2803             }
2804         } else {
2805             struct userNode *user;
2806             struct privmsg_desc *pd = data;
2807
2808             pd->is_qualified = 0;
2809             if (*target_list == '@') {
2810                 user = NULL;
2811             } else if (strchr(target_list, '@')) {
2812                 struct server *server;
2813
2814                 pd->is_qualified = 1;
2815                 user = GetUserH(strtok(target_list, "@"));
2816                 server = GetServerH(strtok(NULL, "@"));
2817
2818                 if (user && (user->uplink != server)) {
2819                     /* Don't attempt to index into any arrays
2820                        using a user's numeric on another server. */
2821                     user = NULL;
2822                 }
2823             } else {
2824                 user = GetUserN(target_list);
2825             }
2826
2827             if (user) {
2828                 if (uf)
2829                     uf(user, data);
2830             } else {
2831                 if (nu)
2832                     nu(target_list, data);
2833             }
2834         }
2835         target_list = j+1;
2836     } while (old == ',');
2837 }
2838
2839 static int
2840 get_local_numeric(void)
2841 {
2842     static unsigned int next_numeric = 0;
2843     if (self->clients > self->num_mask)
2844         return -1;
2845     while (self->users[next_numeric])
2846         if (++next_numeric > self->num_mask)
2847             next_numeric = 0;
2848     return next_numeric;
2849 }
2850
2851 static void
2852 make_numeric(struct server *svr, int local_num, char *outbuf)
2853 {
2854     int slen, llen;
2855
2856     if (force_n2k || svr->numeric[1]) {
2857         slen = 2;
2858         llen = 3;
2859     } else {
2860         slen = 1;
2861         llen = (local_num < 64*64) ? 2 : 3;
2862     }
2863     strncpy(outbuf, svr->numeric, slen);
2864     inttobase64(outbuf+slen, local_num, llen);
2865     outbuf[slen+llen] = 0;
2866 }
2867
2868 struct server *
2869 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link_time, const char *numeric, const char *description)
2870 {
2871     struct server* sNode;
2872     int slen, mlen;
2873
2874     if ((sNode = GetServerN(numeric))) {
2875         /* This means we're trying to re-add an existant server.
2876          * To be safe, we should forget the previous incarnation.
2877          * (And all its linked servers.)
2878          *
2879          * It usually only happens in replays when the original
2880          * had a ping timeout and the replay didn't (because
2881          * replaying a ping timeout invariably gets things wrong).
2882          */
2883         DelServer(sNode, 0, NULL);
2884     }
2885
2886     switch (strlen(numeric)) {
2887     case 5: slen = 2; mlen = 3; break;
2888     case 4: slen = 1; mlen = 3; break;
2889     case 3: slen = 1; mlen = 2; break;
2890     default:
2891         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2892         return NULL;
2893     }
2894
2895     sNode = calloc(1, sizeof(*sNode));
2896     sNode->uplink = uplink;
2897     safestrncpy(sNode->name, name, sizeof(sNode->name));
2898     sNode->num_mask = base64toint(numeric+slen, mlen);
2899     sNode->hops = hops;
2900     sNode->boot = boot;
2901     sNode->link_time = link_time;
2902     strncpy(sNode->numeric, numeric, slen);
2903     safestrncpy(sNode->description, description, sizeof(sNode->description));
2904     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2905     serverList_init(&sNode->children);
2906     if (sNode->uplink) {
2907         /* uplink may be NULL if we're just building ourself */
2908         serverList_append(&sNode->uplink->children, sNode);
2909     }
2910     servers_num[base64toint(numeric, slen)] = sNode;
2911     dict_insert(servers, sNode->name, sNode);
2912     return sNode;
2913 }
2914
2915 void DelServer(struct server* serv, int announce, const char *message)
2916 {
2917     unsigned int i;
2918
2919     /* If we receive an ERROR command before the SERVER
2920      * command a NULL server can be passed */
2921     if (!serv)
2922         return;
2923
2924     /* Hrm, what's the right way to SQUIT some other server?
2925      * (This code is only to handle killing juped servers.) */
2926     if (announce && (serv->uplink == self) && (serv != self->uplink))
2927         irc_squit(serv, message, NULL);
2928
2929     /* must recursively remove servers linked to this one first */
2930     for (i=serv->children.used;i>0;)
2931         if (serv->children.list[--i] != self)
2932             DelServer(serv->children.list[i], false, NULL);
2933
2934     /* clean up server's user hash tables */
2935     for (i=0;i<=serv->num_mask;i++)
2936         if (serv->users[i])
2937             DelUser(serv->users[i], NULL, false, "server delinked");
2938
2939     /* delete server */
2940     if (serv->uplink)
2941         serverList_remove(&serv->uplink->children, serv);
2942     if (serv == self->uplink)
2943         self->uplink = NULL;
2944     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2945     dict_remove(servers, serv->name);
2946     serverList_clean(&serv->children);
2947     free(serv->users);
2948     free(serv);
2949 }
2950
2951 struct userNode *
2952 AddLocalUser(const char *nick, const char *ident, const char *hostname, const char *desc, const char *modes)
2953 {
2954     char numeric[COMBO_NUMERIC_LEN+1];
2955     int local_num = get_local_numeric();
2956     time_t timestamp = now;
2957     struct userNode *old_user = GetUserH(nick);
2958
2959     if (!modes)
2960         modes = "+oik";
2961
2962     if (old_user) {
2963         if (IsLocal(old_user))
2964             return old_user;
2965         timestamp = old_user->timestamp - 1;
2966     }
2967     if (local_num == -1) {
2968         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2969         return 0;
2970     }
2971     if (!hostname)
2972         hostname = self->name;
2973     make_numeric(self, local_num, numeric);
2974     return AddUser(self, nick, ident, hostname, modes, numeric, desc, now, "AAAAAA");
2975 }
2976
2977 struct userNode *
2978 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2979 {
2980     char numeric[COMBO_NUMERIC_LEN+1];
2981     int local_num = get_local_numeric();
2982     time_t timestamp = now;
2983     struct userNode *old_user = GetUserH(nick);
2984
2985     if (old_user) {
2986         if (IsLocal(old_user))
2987             return old_user;
2988         timestamp = old_user->timestamp - 1;
2989     }
2990     if (local_num == -1) {
2991         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2992         return 0;
2993     }
2994     make_numeric(self, local_num, numeric);
2995     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2996 }
2997
2998 int
2999 is_valid_nick(const char *nick) {
3000     unsigned int ii;
3001     /* IRC has some of The Most Fucked-Up ideas about character sets
3002      * in the world.. */
3003     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
3004         return 0;
3005     for (ii = 0; nick[ii]; ++ii)
3006         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
3007             return 0;
3008     if (strlen(nick) > nicklen)
3009         return 0;
3010     return 1;
3011 }
3012
3013 static struct userNode*
3014 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)
3015 {
3016     struct userNode *oldUser, *uNode;
3017     unsigned int ignore_user, dummy;
3018     char *tstr;
3019     int type;
3020
3021     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
3022         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", (void*)uplink, nick, numeric);
3023         return NULL;
3024     }
3025
3026     if (!uplink) {
3027         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", (void*)uplink, nick, numeric);
3028         return NULL;
3029     }
3030
3031     if (uplink != GetServerN(numeric)) {
3032         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", (void*)uplink, nick, numeric, uplink->name);
3033         return NULL;
3034     }
3035
3036     dummy = modes && modes[0] == '*';
3037     if (dummy) {
3038         ++modes;
3039     } else if (!is_valid_nick(nick)) {
3040         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", (void*)uplink, nick);
3041         return NULL;
3042     }
3043
3044     ignore_user = 0;
3045     if ((oldUser = GetUserH(nick))) {
3046         if (IsLocal(oldUser)
3047             && (IsService(oldUser) || IsPersistent(oldUser))) {
3048             /* The service should collide the new user off - but not
3049              * if the new user is coming in during a burst.  (During a
3050              * burst, the bursting server will kill either our user --
3051              * triggering a ReintroduceUser() -- or its own.)
3052              */
3053             oldUser->timestamp = timestamp - 1;
3054             ignore_user = 1;
3055             if (!uplink->burst)
3056                 irc_user(oldUser);
3057         } else if (oldUser->timestamp > timestamp) {
3058             /* "Old" user is really newer; remove them */
3059             DelUser(oldUser, 0, 1, "Overruled by older nick");
3060         } else {
3061             /* User being added is too new; do not add them to
3062              * clients, but do add them to the server's list, since it
3063              * will send a KILL and QUIT soon. */
3064             ignore_user = 1;
3065         }
3066     }
3067
3068     /* create new usernode and set all values */
3069     uNode = calloc(1, sizeof(*uNode));
3070     uNode->nick = strdup(nick);
3071     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
3072     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
3073     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
3074     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
3075     irc_p10_pton(&uNode->ip, realip);
3076
3077     tstr = conf_get_data("server/type", RECDB_QSTRING);
3078     type = atoi(tstr);
3079     if (type > 6) {
3080       if (irc_in_addr_is_ipv4(uNode->ip)) {
3081         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
3082         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3083       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
3084         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3085       }
3086     }
3087
3088     if (!uNode->crypthost && uNode->cryptip)
3089         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
3090     uNode->idle_since = timestamp;
3091     uNode->timestamp = timestamp;
3092     modeList_init(&uNode->channels);
3093     uNode->uplink = uplink;
3094     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
3095         uNode->uplink->max_clients = uNode->uplink->clients;
3096     }
3097     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
3098     uNode->uplink->users[uNode->num_local] = uNode;
3099     mod_usermode(uNode, modes);
3100     if (dummy)
3101         uNode->modes |= FLAGS_DUMMY;
3102
3103     set_geoip_info(uNode);
3104
3105     if (ignore_user)
3106         return uNode;
3107
3108     dict_insert(clients, uNode->nick, uNode);
3109     if (dict_size(clients) > max_clients) {
3110         max_clients = dict_size(clients);
3111         max_clients_time = now;
3112     }
3113     if (IsLocal(uNode))
3114         irc_user(uNode);
3115     call_new_user_funcs(uNode);
3116
3117     if ((uNode->loc == 1) && (uNode->handle_info))
3118         send_func_list(uNode);
3119
3120     return uNode;
3121 }
3122
3123 /* removes user from it's server's hash table and nick hash table */
3124 void
3125 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3126 {
3127
3128     verify(user);
3129
3130     /* mark them as dead, in case anybody cares */
3131     user->dead = 1;
3132
3133     /* remove pending adduser commands */
3134     wipe_adduser_pending(NULL, user);
3135
3136     /* remove user from all channels */
3137     while (user->channels.used > 0)
3138         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, NULL, 0);
3139
3140     /* Call these in reverse order so ChanServ can update presence
3141        information before NickServ nukes the handle_info. */
3142     call_del_user_funcs(user, killer, why);
3143
3144     user->uplink->clients--;
3145     user->uplink->users[user->num_local] = NULL;
3146     if (IsOper(user))
3147         userList_remove(&curr_opers, user);
3148     /* remove from global dictionary, but not if after a collide */
3149     if (user == dict_find(clients, user->nick, NULL))
3150         dict_remove(clients, user->nick);
3151
3152     if (IsInvisible(user))
3153         invis_clients--;
3154
3155     if (announce) {
3156         if (IsLocal(user))
3157             irc_quit(user, why);
3158         else
3159             irc_kill(killer, user, why);
3160     }
3161
3162     if (IsLocal(user)) {
3163         unsigned int num = user->num_local;
3164         if (num < num_privmsg_funcs)
3165             privmsg_funcs[num] = NULL;
3166         if (num < num_notice_funcs)
3167             notice_funcs[num] = NULL;
3168     }
3169
3170     modeList_clean(&user->channels);
3171
3172     /* Clean up version data */
3173     if(user->version_reply) {
3174         free(user->version_reply);
3175         user->version_reply = NULL;
3176     }
3177
3178     /* Clean up SSL fingerprint data */
3179     if(user->sslfp) {
3180         free(user->sslfp);
3181         user->sslfp = NULL;
3182     }
3183
3184     /* clean up mark */
3185     if(user->mark) {
3186         free(user->mark);
3187         user->mark = NULL;
3188     }
3189
3190     /* clean up geoip data if any */
3191     if(user->country_code) free(user->country_code);
3192     if(user->city) free(user->city);
3193     if(user->region) free(user->region);
3194     if(user->postal_code) free(user->postal_code);
3195
3196     /* We don't free them, in case we try to privmsg them or something
3197      * (like when a stupid oper kills themself).  We just put them onto
3198      * a list of clients that get freed after processing each line.
3199      */
3200     if (dead_users.size)
3201         userList_append(&dead_users, user);
3202     else
3203         free_user(user);
3204 }
3205
3206 static void call_oper_funcs(struct userNode *user);
3207
3208 void mod_usermode(struct userNode *user, const char *mode_change) {
3209     int add = 1;
3210     const char *word = mode_change;
3211
3212     if (!user || !mode_change)
3213         return;
3214
3215     call_user_mode_funcs(user, mode_change);
3216
3217     while (*word != ' ' && *word) word++;
3218     while (*word == ' ') word++;
3219     while (1) {
3220 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3221         switch (*mode_change++) {
3222         case 0: case ' ': return;
3223         case '+': add = 1; break;
3224         case '-': add = 0; break;
3225         case 'o':
3226             do_user_mode(FLAGS_OPER);
3227             if (!add) {
3228                 userList_remove(&curr_opers, user);
3229             } else if (!userList_contains(&curr_opers, user)) {
3230                 userList_append(&curr_opers, user);
3231                 call_oper_funcs(user);
3232             }
3233             break;
3234         case 'O': do_user_mode(FLAGS_LOCOP); break;
3235         case 'i': do_user_mode(FLAGS_INVISIBLE);
3236             if (add)
3237                 invis_clients++;
3238             else
3239                 invis_clients--;
3240             break;
3241         case 'w': do_user_mode(FLAGS_WALLOP); break;
3242         case 'd': do_user_mode(FLAGS_DEAF); break;
3243         case 'k': do_user_mode(FLAGS_SERVICE); break;
3244         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3245         case 'B': do_user_mode(FLAGS_BOT); break;
3246         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3247         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3248         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3249         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3250             if (*word) {
3251                 char cloakhost[MAXLEN];
3252                 unsigned int ii;
3253                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3254                     cloakhost[ii++] = *word++;
3255                 cloakhost[ii] = 0;
3256                 while (*word == ' ')
3257                     word++;
3258                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3259             }
3260             break;
3261         case 'c': do_user_mode(FLAGS_CLOAKIP);
3262             if (*word) {
3263                 char cloakip[MAXLEN];
3264                 unsigned int ii;
3265                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3266                     cloakip[ii++] = *word++;
3267                 cloakip[ii] = 0;
3268                 while (*word == ' ')
3269                     word++;
3270                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3271             }
3272             break;
3273         // sethost - reed/apples
3274         // case 'h': do_user_mode(FLAGS_HELPER); break;
3275         // I check if there's an 'h' in the first part, and if there,
3276         // then everything after the space becomes their new host.
3277         case 'h': do_user_mode(FLAGS_SETHOST);
3278             if (*word) {
3279                 char sethost[MAXLEN];
3280                 unsigned int ii;
3281                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3282                     sethost[ii++] = *word++;
3283                 sethost[ii] = 0;
3284                 while (*word == ' ')
3285                     word++;
3286                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3287             }
3288             break;
3289         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3290         case 'r':
3291             if (*word) {
3292                 char tag[MAXLEN];
3293                 unsigned int ii;
3294                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3295                     tag[ii++] = *word++;
3296                 tag[ii] = 0;
3297                 while (*word == ' ')
3298                     word++;
3299                 call_account_func(user, tag);
3300             }
3301             break;
3302         case 'f':
3303             if (*word) {
3304                 char host[MAXLEN];
3305                 unsigned int ii;
3306                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3307                     host[ii++] = *word++;
3308                 host[ii] = 0;
3309                 while (*word == ' ')
3310                     word++;
3311                 assign_fakehost(user, host, 0);
3312             }
3313             break;
3314         }
3315 #undef do_user_mode
3316     }
3317 }
3318
3319 static int
3320 keyncpy(char output[], char input[], size_t output_size)
3321 {
3322     size_t ii;
3323
3324     if (input[0] == ':')
3325     {
3326         output[0] = '\0';
3327         return 1;
3328     }
3329
3330     for (ii = 0; (ii + 1 < output_size) && (input[ii] != '\0'); ++ii)
3331     {
3332         output[ii] = input[ii];
3333     }
3334
3335     output[ii] = '\0';
3336     return 0;
3337 }
3338
3339 struct mod_chanmode *
3340 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3341 {
3342     struct mod_chanmode *change;
3343     unsigned int ii, in_arg, ch_arg, add;
3344
3345     if (argc == 0)
3346         return NULL;
3347     if (!(change = mod_chanmode_alloc(argc - 1)))
3348         return NULL;
3349
3350     for (ii = ch_arg = 0, in_arg = add = 1;
3351          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3352          ++ii) {
3353         switch (modes[0][ii]) {
3354         case '+':
3355             add = 1;
3356             break;
3357         case '-':
3358             add = 0;
3359             break;
3360 #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)
3361         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3362         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3363         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3364         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3365         case 'm': do_chan_mode(MODE_MODERATED); break;
3366         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3367         case 'p': do_chan_mode(MODE_PRIVATE); break;
3368         case 'r': do_chan_mode(MODE_REGONLY); break;
3369         case 's': do_chan_mode(MODE_SECRET); break;
3370         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3371         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3372         case 'M': do_chan_mode(MODE_MODUNREG); break;
3373         case 'N': do_chan_mode(MODE_NONOTICE); break;
3374         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3375         case 'T': do_chan_mode(MODE_NOAMSG); break;
3376         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3377         case 'a': do_chan_mode(MODE_ADMINSONLY); break;
3378         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3379         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3380         case 'z':
3381           if (!(flags & MCP_REGISTERED)) {
3382               do_chan_mode(MODE_REGISTERED);
3383           } else {
3384               mod_chanmode_free(change);
3385               return NULL;
3386           }
3387           break;
3388 #undef do_chan_mode
3389         case 'l':
3390             if (add) {
3391                 if (in_arg >= argc)
3392                     goto error;
3393                 change->modes_set |= MODE_LIMIT;
3394                 change->new_limit = atoi(modes[in_arg++]);
3395             } else {
3396                 change->modes_set &= ~MODE_LIMIT;
3397                 change->modes_clear |= MODE_LIMIT;
3398             }
3399             break;
3400         case 'k':
3401             if (add) {
3402                 if ((in_arg >= argc)
3403                     || keyncpy(change->new_key, modes[in_arg++], sizeof(change->new_key)))
3404                     goto error;
3405                 change->modes_set |= MODE_KEY;
3406             } else {
3407                 change->modes_clear |= MODE_KEY;
3408                 if (!(flags & MCP_KEY_FREE)) {
3409                     if (in_arg >= argc)
3410                         goto error;
3411                     in_arg++;
3412                 }
3413             }
3414             break;
3415         case 'U':
3416             if (add)
3417             {
3418                 if ((in_arg >= argc)
3419                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3420                     goto error;
3421                 change->modes_set |= MODE_UPASS;
3422             } else {
3423                 change->modes_clear |= MODE_UPASS;
3424                 if (!(flags & MCP_UPASS_FREE)) {
3425                     if (in_arg >= argc)
3426                         goto error;
3427                     in_arg++;
3428                 }
3429             }
3430             break;
3431         case 'A':
3432             if (add) {
3433                 if ((in_arg >= argc)
3434                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3435                 change->modes_set |= MODE_APASS;
3436             } else {
3437                 change->modes_clear |= MODE_APASS;
3438                 if (!(flags & MCP_APASS_FREE)) {
3439                     if (in_arg >= argc)
3440                       goto error;
3441                     in_arg++;
3442                 }
3443             }
3444             break;
3445         case 'b':
3446             if (!(flags & MCP_ALLOW_OVB))
3447                 goto error;
3448             if (in_arg >= argc)
3449                 goto error;
3450             change->args[ch_arg].mode = MODE_BAN;
3451             if (!add)
3452                 change->args[ch_arg].mode |= MODE_REMOVE;
3453             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3454             break;
3455         case 'e':
3456             if (!(flags & MCP_ALLOW_OVB))
3457                 goto error;
3458             if (in_arg >= argc)
3459                 goto error;
3460             change->args[ch_arg].mode = MODE_EXEMPT;
3461             if (!add)
3462                 change->args[ch_arg].mode |= MODE_REMOVE;
3463             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3464             break;
3465         case 'o': case 'h': case 'v':
3466         {
3467             struct userNode *victim;
3468             char *oplevel_str;
3469             int oplevel;
3470
3471             if (in_arg >= argc)
3472                 goto error;
3473             oplevel_str = strchr(modes[in_arg], ':');
3474             if (oplevel_str)
3475             {
3476                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3477                 *oplevel_str++ = '\0';
3478                 oplevel = parse_oplevel(oplevel_str);
3479                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3480                     oplevel = base_oplevel + 1;
3481             }
3482             else if (channel->modes & MODE_UPASS)
3483                 oplevel = base_oplevel + 1;
3484             else
3485                 oplevel = -1;
3486
3487             /* Check that oplevel is within bounds. */
3488             if (oplevel > MAXOPLEVEL)
3489                 oplevel = MAXOPLEVEL;
3490
3491             if (!(flags & MCP_ALLOW_OVB))
3492                 goto error;
3493             if (in_arg >= argc)
3494                 goto error;
3495
3496             if (modes[0][ii] == 'o')
3497                 change->args[ch_arg].mode = MODE_CHANOP;
3498             else if (modes[0][ii] == 'h')
3499                 change->args[ch_arg].mode = MODE_HALFOP;
3500             else if (modes[0][ii] == 'v')
3501                 change->args[ch_arg].mode = MODE_VOICE;
3502
3503             if (!add)
3504                 change->args[ch_arg].mode |= MODE_REMOVE;
3505             if (flags & MCP_FROM_SERVER)
3506                 victim = GetUserN(modes[in_arg++]);
3507             else
3508                 victim = GetUserH(modes[in_arg++]);
3509             if (!victim)
3510                 continue;
3511             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3512             {
3513                 /* Apply the oplevel change */
3514                 change->args[ch_arg].u.member->oplevel = oplevel;
3515                 ch_arg++;
3516             }
3517             break;
3518         }
3519         default:
3520             if (!(flags & MCP_FROM_SERVER))
3521                 goto error;
3522             break;
3523         }
3524     }
3525     change->argc = ch_arg; /* in case any turned out to be ignored */
3526     if (change->modes_set & MODE_SECRET) {
3527         change->modes_set &= ~(MODE_PRIVATE);
3528         change->modes_clear |= MODE_PRIVATE;
3529     } else if (change->modes_set & MODE_PRIVATE) {
3530         change->modes_set &= ~(MODE_SECRET);
3531         change->modes_clear |= MODE_SECRET;
3532     }
3533     return change;
3534   error:
3535     mod_chanmode_free(change);
3536     return NULL;
3537 }
3538
3539 struct chanmode_buffer {
3540     char modes[MAXLEN];
3541     char args[MAXLEN];
3542     struct chanNode *channel;
3543     struct userNode *actor;
3544     unsigned int modes_used;
3545     unsigned int args_used;
3546     size_t chname_len;
3547     unsigned int is_add : 1;
3548     unsigned int is_chanop : 1;
3549 };
3550
3551 static void
3552 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3553 {
3554     size_t arg_len = strlen(arg);
3555     if (buf->modes_used > (MAXMODEPARAMS) ||
3556         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3557         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3558         buf->modes[buf->modes_used + buf->args_used] = '\0';
3559         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3560         buf->modes[0] = buf->is_add ? '+' : '-';
3561         buf->modes_used = 1;
3562         buf->args_used = 0;
3563     }
3564     buf->modes[buf->modes_used++] = ch;
3565     buf->args[buf->args_used++] = ' ';
3566     memcpy(buf->args + buf->args_used, arg, arg_len);
3567     buf->args_used += arg_len;
3568 }
3569
3570 void
3571 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3572 {
3573     struct chanmode_buffer chbuf;
3574     unsigned int arg;
3575     struct modeNode *mn;
3576     char int_buff[32], mode = '\0';
3577
3578     assert(change->argc <= change->alloc_argc);
3579     memset(&chbuf, 0, sizeof(chbuf));
3580     chbuf.channel = channel;
3581     chbuf.actor = who;
3582     chbuf.chname_len = strlen(channel->name);
3583
3584     mn = GetUserMode(channel, who);
3585     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3586         chbuf.is_chanop = 1;
3587
3588     /* First remove modes */
3589     chbuf.is_add = 0;
3590     if (change->modes_clear) {
3591         if (mode != '-')
3592             chbuf.modes[chbuf.modes_used++] = mode = '-';
3593 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3594         DO_MODE_CHAR(PRIVATE, 'p');
3595         DO_MODE_CHAR(SECRET, 's');
3596         DO_MODE_CHAR(MODERATED, 'm');
3597         DO_MODE_CHAR(TOPICLIMIT, 't');
3598         DO_MODE_CHAR(INVITEONLY, 'i');
3599         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3600         DO_MODE_CHAR(LIMIT, 'l');
3601         DO_MODE_CHAR(DELAYJOINS, 'D');
3602         DO_MODE_CHAR(REGONLY, 'r');
3603         DO_MODE_CHAR(NOCOLORS, 'c');
3604         DO_MODE_CHAR(NOCTCPS, 'C');
3605         DO_MODE_CHAR(STRIPCOLOR, 'S');
3606         DO_MODE_CHAR(MODUNREG, 'M');
3607         DO_MODE_CHAR(NONOTICE, 'N');
3608         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3609         DO_MODE_CHAR(NOAMSG, 'T');
3610         DO_MODE_CHAR(OPERSONLY, 'O');
3611         DO_MODE_CHAR(REGISTERED, 'z');
3612         DO_MODE_CHAR(SSLONLY, 'Z');
3613         DO_MODE_CHAR(HIDEMODE, 'L');
3614 #undef DO_MODE_CHAR
3615         if (change->modes_clear & channel->modes & MODE_KEY)
3616             mod_chanmode_append(&chbuf, 'k', channel->key);
3617         if (change->modes_clear & channel->modes & MODE_UPASS)
3618             mod_chanmode_append(&chbuf, 'U', channel->upass);
3619         if (change->modes_clear & channel->modes & MODE_APASS)
3620             mod_chanmode_append(&chbuf, 'A', channel->apass);
3621     }
3622     for (arg = 0; arg < change->argc; ++arg) {
3623         if (!(change->args[arg].mode & MODE_REMOVE))
3624             continue;
3625         if (mode != '-')
3626             chbuf.modes[chbuf.modes_used++] = mode = '-';
3627         switch (change->args[arg].mode & ~MODE_REMOVE) {
3628         case MODE_BAN:
3629             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3630             break;
3631         case MODE_EXEMPT:
3632             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3633             break;
3634         default:
3635             if (change->args[arg].mode & MODE_CHANOP)
3636                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3637             if (change->args[arg].mode & MODE_HALFOP)
3638                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3639             if (change->args[arg].mode & MODE_VOICE)
3640                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3641             break;
3642         }
3643     }
3644
3645     /* Then set them */
3646     chbuf.is_add = 1;
3647     if (change->modes_set) {
3648         if (mode != '+')
3649             chbuf.modes[chbuf.modes_used++] = mode = '+';
3650 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3651         DO_MODE_CHAR(PRIVATE, 'p');
3652         DO_MODE_CHAR(SECRET, 's');
3653         DO_MODE_CHAR(MODERATED, 'm');
3654         DO_MODE_CHAR(TOPICLIMIT, 't');
3655         DO_MODE_CHAR(INVITEONLY, 'i');
3656         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3657         DO_MODE_CHAR(DELAYJOINS, 'D');
3658         DO_MODE_CHAR(REGONLY, 'r');
3659         DO_MODE_CHAR(NOCOLORS, 'c');
3660         DO_MODE_CHAR(NOCTCPS, 'C');
3661         DO_MODE_CHAR(STRIPCOLOR, 'S');
3662         DO_MODE_CHAR(MODUNREG, 'M');
3663         DO_MODE_CHAR(NONOTICE, 'N');
3664         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3665         DO_MODE_CHAR(NOAMSG, 'T');
3666         DO_MODE_CHAR(OPERSONLY, 'O');
3667         DO_MODE_CHAR(REGISTERED, 'z');
3668         DO_MODE_CHAR(SSLONLY, 'Z');
3669         DO_MODE_CHAR(HIDEMODE, 'L');
3670 #undef DO_MODE_CHAR
3671         if(change->modes_set & MODE_KEY)
3672             mod_chanmode_append(&chbuf, 'k', change->new_key);
3673         if (change->modes_set & MODE_UPASS)
3674             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3675         if (change->modes_set & MODE_APASS)
3676             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3677         if(change->modes_set & MODE_LIMIT) {
3678             sprintf(int_buff, "%d", change->new_limit);
3679             mod_chanmode_append(&chbuf, 'l', int_buff);
3680         }
3681     }
3682     for (arg = 0; arg < change->argc; ++arg) {
3683         if (change->args[arg].mode & MODE_REMOVE)
3684             continue;
3685         if (mode != '+')
3686             chbuf.modes[chbuf.modes_used++] = mode = '+';
3687         switch (change->args[arg].mode) {
3688         case MODE_BAN:
3689             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3690             break;
3691         case MODE_EXEMPT:
3692             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3693             break;
3694         default:
3695             if (change->args[arg].mode & MODE_CHANOP)
3696                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3697             if (change->args[arg].mode & MODE_HALFOP)
3698                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3699             if (change->args[arg].mode & MODE_VOICE)
3700                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3701             break;
3702         }
3703     }
3704
3705     /* Flush the buffer and apply changes locally */
3706     if (chbuf.modes_used > 0) {
3707         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3708         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3709         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3710     }
3711     mod_chanmode_apply(who, channel, change);
3712 }
3713
3714 char *
3715 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3716 {
3717     unsigned int used = 0;
3718     assert(change->argc <= change->alloc_argc);
3719     if (change->modes_clear) {
3720         outbuff[used++] = '-';
3721 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3722         DO_MODE_CHAR(PRIVATE, 'p');
3723         DO_MODE_CHAR(SECRET, 's');
3724         DO_MODE_CHAR(MODERATED, 'm');
3725         DO_MODE_CHAR(TOPICLIMIT, 't');
3726         DO_MODE_CHAR(INVITEONLY, 'i');
3727         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3728         DO_MODE_CHAR(LIMIT, 'l');
3729         DO_MODE_CHAR(KEY, 'k');
3730         DO_MODE_CHAR(UPASS, 'U');
3731         DO_MODE_CHAR(APASS, 'A');
3732         DO_MODE_CHAR(DELAYJOINS, 'D');
3733         DO_MODE_CHAR(REGONLY, 'r');
3734         DO_MODE_CHAR(NOCOLORS, 'c');
3735         DO_MODE_CHAR(NOCTCPS, 'C');
3736         DO_MODE_CHAR(STRIPCOLOR, 'S');
3737         DO_MODE_CHAR(MODUNREG, 'M');
3738         DO_MODE_CHAR(NONOTICE, 'N');
3739         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3740         DO_MODE_CHAR(NOAMSG, 'T');
3741         DO_MODE_CHAR(OPERSONLY, 'O');
3742         DO_MODE_CHAR(REGISTERED, 'z');
3743         DO_MODE_CHAR(SSLONLY, 'Z');
3744         DO_MODE_CHAR(HIDEMODE, 'L');
3745 #undef DO_MODE_CHAR
3746     }
3747     if (change->modes_set) {
3748         outbuff[used++] = '+';
3749 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3750         DO_MODE_CHAR(PRIVATE, 'p');
3751         DO_MODE_CHAR(SECRET, 's');
3752         DO_MODE_CHAR(MODERATED, 'm');
3753         DO_MODE_CHAR(TOPICLIMIT, 't');
3754         DO_MODE_CHAR(INVITEONLY, 'i');
3755         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3756         DO_MODE_CHAR(DELAYJOINS, 'D');
3757         DO_MODE_CHAR(REGONLY, 'r');
3758         DO_MODE_CHAR(NOCOLORS, 'c');
3759         DO_MODE_CHAR(NOCTCPS, 'C');
3760         DO_MODE_CHAR(STRIPCOLOR, 'S');
3761         DO_MODE_CHAR(MODUNREG, 'M');
3762         DO_MODE_CHAR(NONOTICE, 'N');
3763         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3764         DO_MODE_CHAR(NOAMSG, 'T');
3765         DO_MODE_CHAR(OPERSONLY, 'O');
3766         DO_MODE_CHAR(REGISTERED, 'z');
3767         DO_MODE_CHAR(SSLONLY, 'Z');
3768         DO_MODE_CHAR(HIDEMODE, 'L');
3769 #undef DO_MODE_CHAR
3770         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
3771         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
3772         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
3773             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
3774             break;
3775
3776         case MODE_KEY|MODE_LIMIT|MODE_APASS:
3777             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
3778             break;
3779         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
3780             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
3781             break;
3782         case MODE_KEY|MODE_APASS|MODE_UPASS:
3783             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
3784             break;
3785
3786         case MODE_KEY|MODE_APASS:
3787             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
3788             break;
3789         case MODE_KEY|MODE_UPASS:
3790             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
3791             break;
3792         case MODE_KEY|MODE_LIMIT:
3793             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
3794             break;
3795
3796         case MODE_LIMIT|MODE_UPASS:
3797             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
3798             break;
3799         case MODE_LIMIT|MODE_APASS:
3800             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
3801             break;
3802         case MODE_APASS|MODE_UPASS:
3803             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
3804
3805         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
3806             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
3807             break;
3808
3809         case MODE_APASS:
3810             used += sprintf(outbuff+used, "A %s", change->new_apass);
3811             break;
3812         case MODE_UPASS:
3813             used += sprintf(outbuff+used, "U %s", change->new_upass);
3814             break;
3815         case MODE_KEY:
3816             used += sprintf(outbuff+used, "k %s", change->new_key);
3817             break;
3818         case MODE_LIMIT:
3819             used += sprintf(outbuff+used, "l %d", change->new_limit);
3820             break;
3821         }
3822     }
3823     outbuff[used] = 0;
3824     return outbuff;
3825 }
3826
3827 static int
3828 clear_chanmode(struct chanNode *channel, const char *modes)
3829 {
3830     unsigned int cleared;
3831
3832     for (cleared = 0; *modes; modes++) {
3833         switch (*modes) {
3834         case 'o': cleared |= MODE_CHANOP; break;
3835         case 'h': cleared |= MODE_HALFOP; break;
3836         case 'v': cleared |= MODE_VOICE; break;
3837         case 'p': cleared |= MODE_PRIVATE; break;
3838         case 's': cleared |= MODE_SECRET; break;
3839         case 'm': cleared |= MODE_MODERATED; break;
3840         case 't': cleared |= MODE_TOPICLIMIT; break;
3841         case 'i': cleared |= MODE_INVITEONLY; break;
3842         case 'n': cleared |= MODE_NOPRIVMSGS; break;
3843         case 'k':
3844             cleared |= MODE_KEY;
3845             channel->key[0] = '\0';
3846             break;
3847         case 'A':
3848             cleared |= MODE_APASS;
3849             channel->apass[0] = '\0';
3850             break;
3851         case 'U':
3852             cleared |= MODE_UPASS;
3853             channel->upass[0] = '\0';
3854             break;
3855         case 'l':
3856             cleared |= MODE_LIMIT;
3857             channel->limit = 0;
3858             break;
3859         case 'b': cleared |= MODE_BAN; break;
3860         case 'e': cleared |= MODE_EXEMPT; break;
3861         case 'D': cleared |= MODE_DELAYJOINS; break;
3862         case 'r': cleared |= MODE_REGONLY; break;
3863         case 'c': cleared |= MODE_NOCOLORS; break;
3864         case 'C': cleared |= MODE_NOCTCPS; break;
3865         case 'S': cleared |= MODE_STRIPCOLOR; break;
3866         case 'M': cleared |= MODE_MODUNREG; break;
3867         case 'N': cleared |= MODE_NONOTICE; break;
3868         case 'Q': cleared |= MODE_NOQUITMSGS; break;
3869         case 'T': cleared |= MODE_NOAMSG; break;
3870         case 'O': cleared |= MODE_OPERSONLY; break;
3871         case 'a': cleared |= MODE_ADMINSONLY; break;
3872         case 'z': cleared |= MODE_REGISTERED; break;
3873         case 'Z': cleared |= MODE_SSLONLY; break;
3874         case 'L': cleared |= MODE_HIDEMODE; break;
3875         }
3876     }
3877
3878     if (!cleared)
3879         return 1;
3880
3881     /* Remove simple modes. */
3882     channel->modes &= ~cleared;
3883
3884     /* If removing bans, kill 'em all. */
3885     if ((cleared & MODE_BAN) && channel->banlist.used) {
3886         unsigned int i;
3887         for (i=0; i<channel->banlist.used; i++)
3888             free(channel->banlist.list[i]);
3889         channel->banlist.used = 0;
3890     }
3891
3892     /* If removing exempts, kill 'em all. */
3893     if ((cleared & MODE_EXEMPT) && channel->exemptlist.used) {
3894         unsigned int i;
3895         for (i=0; i<channel->exemptlist.used; i++)
3896             free(channel->exemptlist.list[i]);
3897         channel->exemptlist.used = 0;
3898     }
3899
3900     /* Removed member modes. */
3901     if ((cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3902         int mask = ~(cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3903         unsigned int i;
3904
3905         for (i = 0; i < channel->members.used; i++)
3906             channel->members.list[i]->modes &= mask;
3907     }
3908
3909     return 1;
3910 }
3911
3912 void
3913 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3914 {
3915     unsigned int numeric = user->num_local;
3916     if (numeric >= num_privmsg_funcs) {
3917         int newnum = numeric + 8, ii;
3918         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3919         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3920             privmsg_funcs[ii] = NULL;
3921         num_privmsg_funcs = newnum;
3922     }
3923     if (privmsg_funcs[numeric])
3924         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3925     privmsg_funcs[numeric] = handler;
3926 }
3927
3928 void
3929 unreg_privmsg_func(struct userNode *user)
3930 {
3931     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3932         return; /* this really only works with users */
3933
3934     privmsg_funcs[user->num_local] = NULL;
3935 }
3936
3937
3938 void
3939 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3940 {
3941     unsigned int numeric = user->num_local;
3942     if (numeric >= num_notice_funcs) {
3943         int newnum = numeric + 8, ii;
3944         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3945         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3946             privmsg_funcs[ii] = NULL;
3947         num_notice_funcs = newnum;
3948     }
3949     if (notice_funcs[numeric])
3950         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3951     notice_funcs[numeric] = handler;
3952 }
3953
3954 void
3955 unreg_notice_func(struct userNode *user)
3956 {
3957     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3958         return; /* this really only works with users */
3959
3960     notice_funcs[user->num_local] = NULL;
3961 }
3962
3963 static void
3964 send_burst(void)
3965 {
3966     unsigned int i, hop, max_hop=1;
3967     dict_iterator_t it;
3968
3969     /* burst (juped) servers, closest first (except self, which is sent already) */
3970     for (i=0; i<ArrayLength(servers_num); i++)
3971         if (servers_num[i] && servers_num[i]->hops > max_hop)
3972             max_hop = servers_num[i]->hops;
3973     for (hop=1; hop<=max_hop; hop++) {
3974         for (i=0;i<ArrayLength(servers_num);i++) {
3975             if (servers_num[i]
3976                 && (servers_num[i]->hops == hop)
3977                 && (servers_num[i] != self->uplink))
3978                 irc_server(servers_num[i]);
3979         }
3980     }
3981
3982     /* burst local nicks */
3983     for (i=0; i<=self->num_mask; i++)
3984         if (self->users[i])
3985             irc_user(self->users[i]);
3986
3987     /* build dict of unbursted channel names (just copy existing channels) */
3988     unbursted_channels = dict_new();
3989     for (it = dict_first(channels); it; it = iter_next(it))
3990         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3991 }
3992
3993 /*
3994  * Oplevel parsing
3995  */
3996 static int
3997 parse_oplevel(char *str)
3998 {
3999     int oplevel = 0;
4000     while (isdigit(*str))
4001         oplevel = oplevel * 10 + *str++ - '0';
4002     return oplevel;
4003 }
4004