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_REMOVE              "REMOVE"
  84 #define CMD_RESET               "RESET"
  85 #define CMD_RESTART             "RESTART"
  86 #define CMD_RPING               "RPING"
  87 #define CMD_RPONG               "RPONG"
  88 #define CMD_SASL                "SASL"
  89 #define CMD_SERVER              "SERVER"
  90 #define CMD_SERVLIST            "SERVLIST"
  91 #define CMD_SERVSET             "SERVSET"
  92 #define CMD_SET                 "SET"
  93 #define CMD_SETTIME             "SETTIME"
  94 #define CMD_SGLINE              "SGLINE"
  95 #define CMD_SHUN                "SHUN"
  96 #define CMD_SILENCE             "SILENCE"
  97 #define CMD_SMO                 "SMO"
  98 #define CMD_SNO                 "SNO"
  99 #define CMD_SSHUN               "SSHUN"
 100 #define CMD_SPAMFILTER          "SPAMFILTER"
 101 #define CMD_SQUERY              "SQUERY"
 102 #define CMD_SQUIT               "SQUIT"
 103 #define CMD_STATS               "STATS"
 104 #define CMD_SVSJOIN             "SVSJOIN"
 105 #define CMD_SVSNICK             "SVSNICK"
 106 #define CMD_SVSPART             "SVSPART"
 107 #define CMD_SVSQUIT             "SVSQUIT"
 108 #define CMD_SWHOIS              "SWHOIS"
 109 #define CMD_TIME                "TIME"
 110 #define CMD_TOPIC               "TOPIC"
 111 #define CMD_TRACE               "TRACE"
 112 #define CMD_UPING               "UPING"
 113 #define CMD_USER                "USER"
 114 #define CMD_USERHOST            "USERHOST"
 115 #define CMD_USERIP              "USERIP"
 116 #define CMD_VERSION             "VERSION"
 117 #define CMD_WALLCHOPS           "WALLCHOPS"
 118 #define CMD_WALLOPS             "WALLOPS"
 119 #define CMD_WALLHOPS            "WALLHOPS"
 120 #define CMD_WALLUSERS           "WALLUSERS"
 121 #define CMD_WALLVOICES          "WALLVOICES"
 122 #define CMD_WALLHOPS            "WALLHOPS"
 123 #define CMD_WHO                 "WHO"
 124 #define CMD_WHOIS               "WHOIS"
 125 #define CMD_WHOWAS              "WHOWAS"
 126 #define CMD_ZLINE               "ZLINE"
 127
 128 /* Tokenized commands. */
 129 #define TOK_ACCOUNT             "AC"
 130 #define TOK_ADMIN               "AD"
 131 #define TOK_ALIST               "AL"
 132 #define TOK_ASLL                "LL"
 133 #define TOK_AWAY                "A"
 134 #define TOK_BURST               "B"
 135 #define TOK_CLEARMODE           "CM"
 136 #define TOK_CLOSE               "CLOSE"
 137 #define TOK_CNOTICE             "CN"
 138 #define TOK_CONNECT             "CO"
 139 #define TOK_CPRIVMSG            "CP"
 140 #define TOK_CREATE              "C"
 141 #define TOK_DESTRUCT            "DE"
 142 #define TOK_DESYNCH             "DS"
 143 #define TOK_DIE                 "DIE"
 144 #define TOK_DNS                 "DNS"
 145 #define TOK_EOB                 "EB"
 146 #define TOK_EOB_ACK             "EA"
 147 #define TOK_ERROR               "Y"
 148 #define TOK_EXEMPT              "EX"
 149 #define TOK_FAKEHOST            "FA"
 150 #define TOK_GET                 "GET"
 151 #define TOK_GLINE               "GL"
 152 #define TOK_HASH                "HASH"
 153 #define TOK_HELP                "HELP"
 154 #define TOK_INFO                "F"
 155 #define TOK_INVITE              "I"
 156 #define TOK_ISON                "ISON"
 157 #define TOK_JOIN                "J"
 158 #define TOK_JUPE                "JU"
 159 #define TOK_KICK                "K"
 160 #define TOK_KILL                "D"
 161 #define TOK_LINKS               "LI"
 162 #define TOK_LIST                "LIST"
 163 #define TOK_LUSERS              "LU"
 164 #define TOK_MAP                 "MAP"
 165 #define TOK_MARK                "MK"
 166 #define TOK_MODE                "M"
 167 #define TOK_MOTD                "MO"
 168 #define TOK_NAMES               "E"
 169 #define TOK_NICK                "N"
 170 #define TOK_NOTICE              "O"
 171 #define TOK_OPER                "OPER"
 172 #define TOK_OPMODE              "OM"
 173 #define TOK_PART                "L"
 174 #define TOK_PASS                "PA"
 175 #define TOK_PING                "G"
 176 #define TOK_PONG                "Z"
 177 #define TOK_POST                "POST"
 178 #define TOK_PRIVMSG             "P"
 179 #define TOK_PRIVS               "PRIVS"
 180 #define TOK_PROTO               "PROTO"
 181 #define TOK_QUIT                "Q"
 182 #define TOK_REHASH              "REHASH"
 183 #define TOK_REMOVE              "RM"
 184 #define TOK_RESET               "RESET"
 185 #define TOK_RESTART             "RESTART"
 186 #define TOK_RPING               "RI"
 187 #define TOK_RPONG               "RO"
 188 #define TOK_SASL                "SASL"
 189 #define TOK_SERVER              "S"
 190 #define TOK_SERVLIST            "SERVSET"
 191 #define TOK_SERVSET             "SERVSET"
 192 #define TOK_SET                 "SET"
 193 #define TOK_SETTIME             "SE"
 194 #define TOK_SGLINE              "SGL"
 195 #define TOK_SHUN                "SU"
 196 #define TOK_SILENCE             "U"
 197 #define TOK_SMO                 "SMO"
 198 #define TOK_SNO                 "SNO"
 199 #define TOK_SSHUN               "SSU"
 200 #define TOK_SPAMFILTER          "SF"
 201 #define TOK_SQUERY              "SQUERY"
 202 #define TOK_SQUIT               "SQ"
 203 #define TOK_STATS               "R"
 204 #define TOK_SVSJOIN             "SJ"
 205 #define TOK_SVSNICK             "SN"
 206 #define TOK_SVSPART             "SP"
 207 #define TOK_SVSQUIT             "SX"
 208 #define TOK_SWHOIS              "SW"
 209 #define TOK_TIME                "TI"
 210 #define TOK_TOPIC               "T"
 211 #define TOK_TRACE               "TR"
 212 #define TOK_UPING               "UP"
 213 #define TOK_USER                "USER"
 214 #define TOK_USERHOST            "USERHOST"
 215 #define TOK_USERIP              "USERIP"
 216 #define TOK_VERSION             "V"
 217 #define TOK_WALLCHOPS           "WC"
 218 #define TOK_WALLOPS             "WA"
 219 #define TOK_WALLHOPS            "WH"
 220 #define TOK_WALLUSERS           "WU"
 221 #define TOK_WALLVOICES          "WV"
 222 #define TOK_WALLHOPS            "WH"
 223 #define TOK_WHO                 "H"
 224 #define TOK_WHOIS               "W"
 225 #define TOK_WHOWAS              "X"
 226 #define TOK_ZLINE               "ZL"
 227
 228 /* Protocol messages; aliased to full commands or tokens depending
 229    on compile-time configuration. ircu prefers tokens WITH THE
 230    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 231    tokenized, because clients' (ie. a linking server) commands are
 232    only checked against the full command list.
 233 */
 234 #if defined(ENABLE_TOKENS)
 235 #define TYPE(NAME)              TOK_ ## NAME
 236 #else /* !ENABLE_TOKENS */
 237 #define TYPE(NAME)              CMD_ ## NAME
 238 #endif /* ENABLE_TOKENS */
 239
 240 #define P10_ACCOUNT             TYPE(ACCOUNT)
 241 #define P10_ADMIN               TYPE(ADMIN)
 242 #define P10_ASLL                TYPE(ASLL)
 243 #define P10_AWAY                TYPE(AWAY)
 244 #define P10_BURST               TYPE(BURST)
 245 #define P10_CLEARMODE           TYPE(CLEARMODE)
 246 #define P10_CLOSE               TYPE(CLOSE)
 247 #define P10_CNOTICE             TYPE(CNOTICE)
 248 #define P10_CONNECT             TYPE(CONNECT)
 249 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 250 #define P10_CREATE              TYPE(CREATE)
 251 #define P10_DESTRUCT            TYPE(DESTRUCT)
 252 #define P10_DESYNCH             TYPE(DESYNCH)
 253 #define P10_DIE                 TYPE(DIE)
 254 #define P10_DNS                 TYPE(DNS)
 255 #define P10_EOB                 TYPE(EOB)
 256 #define P10_EOB_ACK             TYPE(EOB_ACK)
 257 #define P10_ERROR               TYPE(ERROR)
 258 #define P10_FAKEHOST            TYPE(FAKEHOST)
 259 #define P10_GET                 TYPE(GET)
 260 #define P10_GLINE               TYPE(GLINE)
 261 #define P10_HASH                TYPE(HASH)
 262 #define P10_HELP                TYPE(HELP)
 263 #define P10_INFO                TYPE(INFO)
 264 #define P10_INVITE              TYPE(INVITE)
 265 #define P10_ISON                TYPE(ISON)
 266 #define P10_JOIN                TYPE(JOIN)
 267 #define P10_JUPE                TYPE(JUPE)
 268 #define P10_KICK                TYPE(KICK)
 269 #define P10_KILL                TYPE(KILL)
 270 #define P10_LINKS               TYPE(LINKS)
 271 #define P10_LIST                TYPE(LIST)
 272 #define P10_LUSERS              TYPE(LUSERS)
 273 #define P10_MAP                 TYPE(MAP)
 274 #define P10_MARK                TYPE(MARK)
 275 #define P10_MODE                TYPE(MODE)
 276 #define P10_MOTD                TYPE(MOTD)
 277 #define P10_NAMES               TYPE(NAMES)
 278 #define P10_NICK                TYPE(NICK)
 279 #define P10_NOTICE              TYPE(NOTICE)
 280 #define P10_OPER                TYPE(OPER)
 281 #define P10_OPMODE              TYPE(OPMODE)
 282 #define P10_PART                TYPE(PART)
 283 #define P10_PASS                CMD_PASS
 284 #define P10_PING                TYPE(PING)
 285 #define P10_PONG                TYPE(PONG)
 286 #define P10_POST                TYPE(POST)
 287 #define P10_PRIVMSG             TYPE(PRIVMSG)
 288 #define P10_PRIVS               TYPE(PRIVS)
 289 #define P10_PROTO               TYPE(PROTO)
 290 #define P10_QUIT                TYPE(QUIT)
 291 #define P10_REHASH              TYPE(REHASH)
 292 #define P10_REMOVE              TYPE(REMOVE)
 293 #define P10_RESET               TYPE(RESET)
 294 #define P10_RESTART             TYPE(RESTART)
 295 #define P10_RPING               TYPE(RPING)
 296 #define P10_RPONG               TYPE(RPONG)
 297 #define P10_SASL                TYPE(SASL)
 298 #define P10_SERVER              CMD_SERVER
 299 #define P10_SERVLIST            TYPE(SERVLIST)
 300 #define P10_SERVSET             TYPE(SERVSET)
 301 #define P10_SET                 TYPE(SET)
 302 #define P10_SETTIME             TYPE(SETTIME)
 303 #define P10_SGLINE              TYPE(SGLINE)
 304 #define P10_SHUN                TYPE(SHUN)
 305 #define P10_SILENCE             TYPE(SILENCE)
 306 #define P10_SMO                 TYPE(SMO)
 307 #define P10_SNO                 TYPE(SNO)
 308 #define P10_SSHUN               TYPE(SSHUN)
 309 #define P10_SPAMFILTER          TYPE(SPAMFILTER)
 310 #define P10_SQUERY              TYPE(SQUERY)
 311 #define P10_SQUIT               TYPE(SQUIT)
 312 #define P10_STATS               TYPE(STATS)
 313 #define P10_SVSJOIN             TYPE(SVSJOIN)
 314 #define P10_SVSNICK             TYPE(SVSNICK)
 315 #define P10_SVSPART             TYPE(SVSPART)
 316 #define P10_SVSQUIT             TYPE(SVSQUIT)
 317 #define P10_SWHOIS              TYPE(SWHOIS)
 318 #define P10_TIME                TYPE(TIME)
 319 #define P10_TOPIC               TYPE(TOPIC)
 320 #define P10_TRACE               TYPE(TRACE)
 321 #define P10_UPING               TYPE(UPING)
 322 #define P10_USER                TYPE(USER)
 323 #define P10_USERHOST            TYPE(USERHOST)
 324 #define P10_USERIP              TYPE(USERIP)
 325 #define P10_VERSION             TYPE(VERSION)
 326 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 327 #define P10_WALLOPS             TYPE(WALLOPS)
 328 #define P10_WALLHOPS            TYPE(WALLHOPS)
 329 #define P10_WALLUSERS           TYPE(WALLUSERS)
 330 #define P10_WALLVOICES          TYPE(WALLVOICES)
 331 #define P10_WHO                 TYPE(WHO)
 332 #define P10_WHOIS               TYPE(WHOIS)
 333 #define P10_WHOWAS              TYPE(WHOWAS)
 334 #define P10_ZLINE               TYPE(ZLINE)
 335 #define P10_EXEMPT              TYPE(EXEMPT)
 336
 337 /* Servers claiming to have a boot or link time before PREHISTORY
 338  * trigger errors to the log.  We hope no server has been running
 339  * constantly since September 1994.  :)
 340  */
 341 #define PREHISTORY 780000000
 342
 343 #define MODELEN                 40 + KEYLEN
 344
 345 static struct server *servers_num[64*64];
 346 static privmsg_func_t *privmsg_funcs;
 347 static unsigned int num_privmsg_funcs;
 348 static privmsg_func_t *notice_funcs;
 349 static unsigned int num_notice_funcs;
 350 static struct dict *unbursted_channels;
 351 static const char *his_servername;
 352 static const char *his_servercomment;
 353 static int extended_accounts;
 354
 355 /* These correspond to 1 << X:      01234567890123456789012345 */
 356 const char irc_user_mode_chars[] = "oOiw dkgh    x  BnIX  azDRWHLq";
 357
 358 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);
 359
 360 extern int off_channel;
 361 extern int DefConLevel;
 362 extern int DefConTimeOut;
 363 extern char *DefConChanModes;
 364
 365 static int parse_oplevel(char *str);
 366
 367 char privbuf[512] = "";
 368
 369 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 370  * server and Y's indentifying the client on that server. */
 371 struct server*
 372 GetServerN(const char *numeric)
 373 {
 374     switch (strlen(numeric)) {
 375     default:
 376         return servers_num[base64toint(numeric, 2)];
 377     case 4:
 378     case 3:
 379     case 1:
 380         return servers_num[base64toint(numeric, 1)];
 381     case 0:
 382         return NULL;
 383     }
 384 }
 385
 386 struct userNode*
 387 GetUserN(const char *numeric) /* using numeric */
 388 {
 389     struct userNode *un;
 390     struct server *s;
 391     int n, slen, ulen;
 392
 393     switch (strlen(numeric)) {
 394     default:
 395         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 396         return NULL;
 397     case 5: slen = 2; ulen = 3; break;
 398     case 4: slen = 1; ulen = 3; break;
 399     case 3: slen = 1; ulen = 2; break;
 400     case 2: case 1: case 0:
 401         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 402         return NULL;
 403     }
 404     if (!(s = servers_num[base64toint(numeric, slen)])) {
 405         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 406         return NULL;
 407     }
 408     n = base64toint(numeric+slen, ulen) & s->num_mask;
 409     if (!(un = s->users[n])) {
 410         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 411     }
 412     return un;
 413 }
 414
 415 extern struct userNode *opserv;
 416 static void
 417 check_ctcp(struct userNode *user, struct userNode *bot, char *text, UNUSED_ARG(int server_qualified))
 418 {
 419     char *cmd;
 420     /* if its a version reply, do an alert check (only alerts with version=something) */
 421     if(bot == opserv) {
 422         if(text[0] == '\001') {
 423             text++;
 424             cmd = mysep(&text, " ");
 425             if(!irccasecmp(cmd, "VERSION")) {
 426                 char *version = mysep(&text, "\n");
 427                 if(!version)
 428                     version = "";
 429                 /* opserv_debug("Opserv got CTCP VERSION Notice from %s: %s", user->nick, version); */
 430                 /* TODO: setup a ctcp_funcs thing to handle this and other CTCPS properly */
 431                 user->version_reply = strdup(version);
 432                 /* TODO: put this in the db */
 433                 if(match_ircglob(version, "WebTV;*"))
 434                     user->no_notice = true; /* webbies cant see notices */
 435             }
 436         }
 437     }
 438 }
 439
 440
 441 static void
 442 privmsg_user_helper(struct userNode *un, void *data)
 443 {
 444     struct privmsg_desc *pd = data;
 445     unsigned int num = un->num_local;
 446     if (!pd->is_notice) {
 447         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 448             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 449         }
 450     } else {
 451         if ((num < num_notice_funcs) && notice_funcs[num]) {
 452             check_ctcp(pd->user, un, pd->text, pd->is_qualified);
 453             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 454         }
 455     }
 456 }
 457
 458 /* equiv to user doing /connect server port target */
 459 void irc_connect(struct userNode *user, char *server, unsigned int port, struct server *target)
 460 {
 461     putsock("%s " P10_CONNECT " %s %d %s", user->numeric, server, port, target->numeric);
 462 }
 463
 464 void
 465 irc_squit_route(struct server *srv, const char *message, ...)
 466 {
 467     va_list arg_list;
 468     char buffer[MAXLEN];
 469     va_start(arg_list, message);
 470     vsnprintf(buffer, MAXLEN-2, message, arg_list);
 471     buffer[MAXLEN-1] = 0;
 472
 473     /* When would we squit ourselves exactly?? -Rubin */
 474     if(srv == self && cManager.uplink->state == CONNECTED ) {
 475         unsigned int i;
 476
 477         /* Quit all clients linked to me. */
 478         for(i = 0; i <= self->num_mask; i++) {
 479             if(!self->users[i])
 480                 continue;
 481             irc_quit(self->users[i], buffer);
 482         }
 483     }
 484
 485     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, buffer);
 486
 487     if(srv == self) {
 488         /* Force a reconnect to the currently selected server. */
 489         cManager.uplink->tries = 0;
 490         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", buffer);
 491         close_socket();
 492     }
 493 }
 494
 495 void
 496 irc_server(struct server *srv)
 497 {
 498     char extranum[COMBO_NUMERIC_LEN+1];
 499
 500     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 501     if (srv == self) {
 502         putsock(P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " J10 %s%s +s6o :%s",
 503                 srv->name, srv->hops+1, srv->boot, srv->link_time, srv->numeric, extranum, srv->description);
 504     } else {
 505         putsock("%s " P10_SERVER " %s %d " FMT_TIME_T " " FMT_TIME_T " %c10 %s%s +s6o :%s",
 506                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link_time, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 507     }
 508 }
 509
 510 void
 511 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 512 {
 513     if (strlen(input) == 6) {
 514         unsigned int value;
 515         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 516         value = base64toint(input, 6);
 517         if (value)
 518             ip->in6[5] = htons(65535);
 519         ip->in6[6] = htons(value >> 16);
 520         ip->in6[7] = htons(value & 65535);
 521     } else {
 522         unsigned int pos = 0;
 523         do {
 524             if (*input == '_') {
 525                 unsigned int left;
 526                 for (left = (25 - strlen(input)) / 3 - pos; left; left--)
 527                     ip->in6[pos++] = 0;
 528                 input++;
 529             } else {
 530                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 531                 input += 3;
 532             }
 533         } while (pos < 8);
 534     }
 535 }
 536
 537 void
 538 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 539 {
 540     if (!irc_in_addr_is_valid(*ip)) {
 541         strcpy(output, "AAAAAA");
 542     } else if (irc_in_addr_is_ipv4(*ip)) {
 543         unsigned int in4;
 544         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 545         inttobase64(output, in4, 6);
 546         output[6] = '\0';
 547     } else if (irc_in_addr_is_ipv6(*ip)) {
 548         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 549         /* Can start by printing out the leading non-zero parts. */
 550         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 551             inttobase64(output, ntohs(ip->in6[ii]), 3);
 552             output += 3;
 553         }
 554         /* Find the longest run of zeros. */
 555         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 556             if (!ip->in6[ii])
 557                 curr_zeros++;
 558             else if (curr_zeros > max_zeros) {
 559                 max_start = ii - curr_zeros;
 560                 max_zeros = curr_zeros;
 561                 curr_zeros = 0;
 562             }
 563         }
 564         if (curr_zeros > max_zeros) {
 565             max_start = ii - curr_zeros;
 566             max_zeros = curr_zeros;
 567             curr_zeros = 0;
 568         }
 569         /* Print the rest of the address */
 570         for (ii = zero; ii < 8; ) {
 571             if ((ii == max_start) && max_zeros) {
 572                 *output++ = '_';
 573                 ii += max_zeros;
 574             } else {
 575                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 576                 output += 3;
 577             }
 578         }
 579         *output = '\0';
 580     } else {
 581         strcpy(output, "???");
 582     }
 583 }
 584
 585 void
 586 irc_user(struct userNode *user)
 587 {
 588     char b64ip[25];
 589     if (!user || IsDummy(user))
 590         return;
 591     irc_p10_ntop(b64ip, &user->ip);
 592     if (user->modes) {
 593         char modes[32];
 594
 595         irc_user_modes(user, modes, sizeof(modes));
 596         /* we don't need to put the + in modes because it's in the format string. */
 597         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s +%s %s %s :%s",
 598                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 599     } else {
 600         putsock("%s " P10_NICK " %s %d " FMT_TIME_T " %s %s %s %s :%s",
 601                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 602     }
 603 }
 604
 605 void
 606 irc_rename(struct userNode *user, const char *new_handle)
 607 {
 608     if(extended_accounts)
 609         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 610 }
 611
 612 void
 613 irc_delete(struct userNode *user)
 614 {
 615     if(extended_accounts)
 616         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 617 }
 618
 619 void
 620 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 621 {
 622     if(extended_accounts)
 623         putsock("%s " P10_ACCOUNT " %s R %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 624     else
 625         putsock("%s " P10_ACCOUNT " %s %s "FMT_TIME_T, self->numeric, user->numeric, stamp, timestamp);
 626 }
 627
 628 void
 629 irc_fakehost(struct userNode *user, const char *host)
 630 {
 631     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 632 }
 633
 634 void
 635 irc_regnick(UNUSED_ARG(struct userNode *user))
 636 {
 637     /* no operation here */
 638 }
 639
 640 void
 641 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 642 {
 643     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 644 }
 645
 646 void
 647 irc_fetchtopic(struct userNode *from, const char *to)
 648 {
 649     if (!from || !to)
 650         return;
 651     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 652 }
 653
 654 void
 655 irc_squit(struct server *srv, const char *message, const char *service_message)
 656 {
 657     if (!service_message)
 658         service_message = message;
 659
 660     /* Are we leaving the network? */
 661     if (srv == self && cManager.uplink->state == CONNECTED) {
 662         unsigned int i;
 663
 664         /* Quit all clients linked to me. */
 665         for (i = 0; i <= self->num_mask; i++) {
 666             if (!self->users[i])
 667                 continue;
 668             irc_quit(self->users[i], service_message);
 669         }
 670     }
 671
 672     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 673
 674     if (srv == self) {
 675         /* Force a reconnect to the currently selected server. */
 676         cManager.uplink->tries = 0;
 677         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 678         close_socket();
 679     }
 680 }
 681
 682 void
 683 irc_wallchops(struct userNode *from, const char *to, const char *message)
 684 {
 685     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 686 }
 687
 688 void
 689 irc_wallops(const char *format, ...)
 690 {
 691     va_list arg_list;
 692     char buffer[MAXLEN];
 693     va_start(arg_list, format);
 694     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 695     buffer[MAXLEN-1] = 0;
 696     putsock("%s " P10_WALLOPS " :%s", self->numeric, buffer);
 697 }
 698
 699 static int
 700 deliver_to_dummy(struct userNode *source, struct userNode *dest, const char *message, int type)
 701 {
 702     unsigned int num;
 703
 704     if (!dest || !IsDummy(dest) || !IsLocal(dest))
 705         return 0;
 706     num = dest->num_local;
 707     switch (type) {
 708     default:
 709         if ((num < num_notice_funcs) && notice_funcs[num])
 710             notice_funcs[num](source, dest, message, 0);
 711         break;
 712     case 1:
 713         if ((num < num_privmsg_funcs) && privmsg_funcs[num])
 714             privmsg_funcs[num](source, dest, message, 0);
 715         break;
 716     }
 717     return 1;
 718 }
 719
 720 void
 721 irc_notice(struct userNode *from, const char *to, const char *message)
 722 {
 723     if (to[0] == '#' || to[0] == '$'
 724         || !deliver_to_dummy(from, GetUserN(to), message, 0))
 725         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 726 }
 727
 728 void
 729 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 730 {
 731     if (!deliver_to_dummy(from, to, message, 0))
 732         putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 733 }
 734
 735 void
 736 irc_privmsg(struct userNode *from, const char *to, const char *message)
 737 {
 738     if (to[0] == '#' || to[0] == '$'
 739         || !deliver_to_dummy(from, GetUserN(to), message, 1))
 740         putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 741 }
 742
 743 void
 744 irc_privmsg_user(struct userNode *from, struct userNode *to, const char *message)
 745 {
 746     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to->numeric, message);
 747 }
 748
 749 void
 750 irc_version_user(struct userNode *from, struct userNode *to)
 751 {
 752     irc_privmsg_user(from, to, "\001VERSION\001");
 753 }
 754
 755 void
 756 irc_eob(void)
 757 {
 758     putsock("%s " P10_EOB, self->numeric);
 759 }
 760
 761 void
 762 irc_eob_ack(void)
 763 {
 764     putsock("%s " P10_EOB_ACK, self->numeric);
 765
 766     char *nick;
 767     const char *str;
 768     str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
 769     nick = strdup(str);
 770
 771     if (nick && (DefConLevel < 5)) {
 772         DefConProcess(GetUserH(nick));
 773
 774         if (DefConTimeOut > 0)
 775             timeq_add(now + DefConTimeOut, defcon_timeout, NULL);
 776     }
 777 }
 778
 779 void
 780 irc_rpong(const char *from1, const char *from2, const char *pingtime, const char *clientinfo)
 781 {
 782     putsock("%s " P10_RPONG " %s %s %s :%s", self->numeric, from1, from2, pingtime, clientinfo);
 783 }
 784
 785 void
 786 irc_ping(const char *payload)
 787 {
 788     putsock("%s " P10_PING " :%s", self->numeric, payload);
 789 }
 790
 791 void
 792 irc_pong(const char *who, const char *data)
 793 {
 794     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 795 }
 796
 797 void
 798 irc_pong_asll(const char *who, const char *orig_ts)
 799 {
 800     char *delim;
 801     struct timeval orig;
 802     struct timeval sys_now;
 803     int diff;
 804
 805     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 806     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 807     gettimeofday(&sys_now, NULL);
 808     diff = (sys_now.tv_sec - orig.tv_sec) * 1000 + (sys_now.tv_usec - orig.tv_usec) / 1000;
 809     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);
 810 }
 811
 812 void
 813 irc_pass(const char *passwd)
 814 {
 815     putsock(P10_PASS " :%s", passwd);
 816 }
 817
 818 void
 819 irc_introduce(const char *passwd)
 820 {
 821     void timed_send_ping(void *data);
 822
 823     self->self_burst = self->burst = 1;
 824     irc_pass(passwd);
 825     irc_server(self);
 826     burst_length = 0;
 827     timeq_add(now + ping_freq, timed_send_ping, 0);
 828 }
 829
 830 void
 831 irc_gline(struct server *srv, struct gline *gline, int silent)
 832 {
 833     putsock("%s " P10_GLINE " %s +%s " FMT_TIME_T " " FMT_TIME_T " :%s<%s> %s",
 834             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 835 }
 836
 837 void
 838 irc_shun(struct server *srv, struct shun *shun)
 839 {
 840     putsock("%s " P10_SHUN " %s +%s " FMT_TIME_T " :<%s> %s",
 841             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 842 }
 843
 844 void
 845 irc_settime(const char *srv_name_mask, time_t new_time)
 846 {
 847     ioset_set_time(new_time);
 848     if (!strcmp(srv_name_mask, "*"))
 849         srv_name_mask = "";
 850     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 851 }
 852
 853 void
 854 irc_ungline(const char *mask)
 855 {
 856     putsock("%s " P10_GLINE " * -%s " FMT_TIME_T, self->numeric, mask, now);
 857 }
 858
 859 void
 860 irc_unshun(const char *mask)
 861 {
 862     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 863 }
 864
 865 void
 866 irc_burst(struct chanNode *chan)
 867 {
 868     char burst_line[512];
 869     int pos, base_len, len;
 870     struct modeNode *mn;
 871     struct banNode *bn;
 872     struct exemptNode *en;
 873     long last_mode=-1;
 874     unsigned int first_ban;
 875     unsigned int first_exempt;
 876     unsigned int n;
 877
 878     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 879                        self->numeric, chan->name, chan->timestamp);
 880     len = irc_make_chanmode(chan, burst_line+base_len);
 881     pos = base_len + len;
 882     if (len > 0 && chan->members.used > 0)
 883         burst_line[pos++] = ' ';
 884
 885     if(chan->members.used < 1)
 886         return; /* dont burst empty channels (created by discrims) */
 887     /* dump the users */
 888     for (n=0; n<chan->members.used; n++) {
 889         mn = chan->members.list[n];
 890         if (pos > 500) {
 891             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 892             putsock("%s", burst_line);
 893             pos = base_len;
 894             last_mode = -1;
 895         }
 896
 897         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 898         pos += strlen(mn->user->numeric);
 899         if (mn->modes && (mn->modes != last_mode)) {
 900             last_mode = mn->modes;
 901             burst_line[pos++] = ':';
 902             if (last_mode & MODE_CHANOP)
 903                 burst_line[pos++] = 'o';
 904             if (last_mode & MODE_HALFOP)
 905                 burst_line[pos++] = 'h';
 906             if (last_mode & MODE_VOICE)
 907                 burst_line[pos++] = 'v';
 908         }
 909         if ((n+1)<chan->members.used)
 910             burst_line[pos++] = ',';
 911     }
 912
 913     if (len > 0 && (chan->banlist.used > 0 || chan->exemptlist.used > 0))
 914         burst_line[pos++] = ' ';
 915
 916     if (chan->banlist.used) {
 917         /* dump the bans */
 918         first_ban = 1;
 919
 920         for (n=0; n<chan->banlist.used; ) {
 921             if (first_ban && (pos < 500)) {
 922                 burst_line[pos++] = ':';
 923                 burst_line[pos++] = '%';
 924             }
 925             bn = chan->banlist.list[n];
 926             len = strlen(bn->ban);
 927             if (pos + 2 + len < 505) {
 928                 memcpy(burst_line + pos, bn->ban, len);
 929                 pos += len;
 930                 burst_line[pos++] = ' ';
 931                 first_ban = 0;
 932                 n++;
 933             } else {
 934                 burst_line[pos-1] = 0;
 935                 putsock("%s", burst_line);
 936                 pos = base_len;
 937                 first_ban = 1;
 938             }
 939         }
 940     }
 941
 942     if (chan->exemptlist.used) {
 943         /* dump the exempts */
 944         first_exempt = 1;
 945
 946         for (n=0; n<chan->exemptlist.used; ) {
 947             if (first_exempt && (pos < 500)) {
 948                 if (chan->banlist.used < 1) {
 949                     burst_line[pos++] = ':';
 950                     burst_line[pos++] = '%';
 951                     burst_line[pos++] = ' ';
 952                 }
 953                 burst_line[pos++] = '~';
 954                 burst_line[pos++] = ' ';
 955             }
 956             en = chan->exemptlist.list[n];
 957             len = strlen(en->exempt);
 958             if (pos + 2 + len < 505) {
 959                 memcpy(burst_line + pos, en->exempt, len);
 960                 pos += len;
 961                 burst_line[pos++] = ' ';
 962                 first_exempt = 0;
 963                 n++;
 964             } else {
 965                 burst_line[pos-1] = 0;
 966                 putsock("%s", burst_line);
 967                 pos = base_len;
 968                 first_exempt = 1;
 969             }
 970         }
 971     }
 972     /* print the last line */
 973     burst_line[pos] = 0;
 974     putsock("%s", burst_line);
 975 }
 976
 977 void
 978 irc_quit(struct userNode *user, const char *message)
 979 {
 980     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 981 }
 982
 983 void
 984 irc_error(const char *to, const char *message)
 985 {
 986     if (to) {
 987         putsock("%s " P10_ERROR " :%s", to, message);
 988     } else {
 989         putsock(":%s " P10_ERROR " :%s", self->name, message);
 990     }
 991 }
 992
 993 void
 994 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 995 {
 996     if (from) {
 997         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 998                 from->numeric, target->numeric, self->name, from->nick, message);
 999     } else {
1000         putsock("%s " P10_KILL " %s :%s (%s)",
1001                 self->numeric, target->numeric, self->name, message);
1002     }
1003 }
1004
1005 void
1006 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
1007 {
1008     call_channel_mode_funcs(from, target, (char **)&modes, 0);
1009     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
1010             (from ? from->numeric : self->numeric),
1011             target->name, modes, target->timestamp);
1012 }
1013
1014 /* Added to allow services to mode users
1015    2005 - 8 - 10 by Life4Christ
1016 */
1017 void
1018 irc_umode(struct userNode *target, const char *modes)
1019 {
1020     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
1021 }
1022
1023
1024 void
1025 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
1026 {
1027     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
1028 }
1029
1030 void
1031 irc_silence(struct userNode *who, const char *mask, int add)
1032 {
1033     putsock("%s " P10_SILENCE " %s %s%s", self->numeric, who->numeric, add ? "+" : "-", mask);
1034 }
1035
1036 void
1037 irc_join(struct userNode *who, struct chanNode *what)
1038 {
1039     if (what->members.used == 1) {
1040         putsock("%s " P10_CREATE " %s "FMT_TIME_T,
1041                 who->numeric, what->name, what->timestamp);
1042     } else {
1043         putsock("%s " P10_JOIN " %s "FMT_TIME_T, who->numeric, what->name, what->timestamp);
1044     }
1045 }
1046
1047 void
1048 irc_svsjoin(struct userNode *from, struct userNode *who, struct chanNode *to)
1049 {
1050     putsock("%s " P10_SVSJOIN " %s %s "FMT_TIME_T, from->uplink->numeric, who->numeric, to->name, now);
1051 }
1052
1053 void
1054 irc_svspart(struct userNode *from, struct userNode *who, struct chanNode *to)
1055 {
1056     putsock("%s " P10_SVSPART " %s %s", from->uplink->numeric, who->numeric, to->name);
1057 }
1058
1059 void
1060 irc_svsquit(struct userNode *from, struct userNode *who, char const *reason)
1061 {
1062     putsock("%s " P10_SVSQUIT " %s :%s", from->uplink->numeric, who->numeric, reason);
1063 }
1064
1065 void
1066 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
1067 {
1068     const char *numeric;
1069     struct modeNode *mn = GetUserMode(channel, who);
1070     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
1071     putsock("%s " P10_KICK " %s %s :%s",
1072             numeric, channel->name, target->numeric, msg);
1073 }
1074
1075 void
1076 irc_stats(struct userNode *from, struct server *target, char type)
1077 {
1078     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
1079 }
1080
1081 void
1082 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
1083 {
1084     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
1085 }
1086
1087 void
1088 irc_swhois(struct userNode *from, struct userNode *target, const char *message)
1089 {
1090     putsock("%s " P10_SWHOIS " %s %s%s", from->uplink->numeric, target->numeric, message ? ":" : "",
1091                                          message ? message : "");
1092
1093 }
1094
1095 void
1096 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
1097 {
1098     if (reason) {
1099         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
1100     } else {
1101         putsock("%s " P10_PART " %s", who->numeric, what->name);
1102     }
1103 }
1104
1105 void
1106 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
1107 {
1108
1109    int type = 4, host_in_topic = 0, hasident = 0, hhtype = 0;
1110    const char *hstr, *tstr, *hhstr, *htstr;
1111    char *host, *hostmask;
1112    char shost[MAXLEN];
1113    char sident[MAXLEN];
1114
1115    tstr = conf_get_data("server/type", RECDB_QSTRING);
1116    hstr = conf_get_data("server/host_in_topic", RECDB_QSTRING);
1117    hhstr = conf_get_data("server/hidden_host", RECDB_QSTRING);
1118    htstr = conf_get_data("server/hidden_host_type", RECDB_QSTRING);
1119    if(tstr)
1120      type = atoi(tstr);
1121    else
1122      type = 4;/* default to 040 style topics */
1123    if (htstr)
1124      hhtype = atoi(htstr);
1125
1126    if (hstr) {
1127       if (IsHiddenHost(who) && IsFakeHost(who))
1128           safestrncpy(shost, who->fakehost, sizeof(shost));
1129       else if (IsHiddenHost(who) && IsSetHost(who)) {
1130           hostmask = strdup(who->sethost);
1131           if ((host = (strrchr(hostmask, '@')))) {
1132               hasident = 1;
1133               *host++ = '\0';
1134           } else
1135               host = hostmask;
1136
1137           if (hasident)
1138               safestrncpy(sident, hostmask, sizeof(shost));
1139           else
1140               safestrncpy(sident, who->ident, sizeof(shost));
1141
1142           safestrncpy(shost, host, sizeof(shost));
1143       } else if (IsHiddenHost(who) && ((hhtype == 1) || (hhtype == 3)) && who->handle_info && hhstr) {
1144           snprintf(shost, sizeof(shost), "%s.%s", who->handle_info->handle, hhstr);
1145       } else if (IsHiddenHost(who) && ((hhtype == 2) || (hhtype == 3)) && who->crypthost[0]) {
1146           safestrncpy(shost, who->crypthost, sizeof(shost));
1147       } else
1148           safestrncpy(shost, who->hostname, sizeof(shost));
1149
1150       host_in_topic = atoi(hstr);
1151    }
1152
1153    if (type >= 5) {
1154      putsock("%s " P10_TOPIC " %s %s%s%s%s%s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name,
1155              who->nick, host_in_topic ? "!" : "", host_in_topic ? (IsSetHost(who) ? sident : who->ident) : "",
1156              host_in_topic ? "@" : "", host_in_topic ? shost : "", what->timestamp, now, topic);
1157    } else {
1158      who = service;
1159      putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
1160    }
1161 }
1162
1163 void
1164 irc_raw(const char *what)
1165 {
1166     putsock("%s", what);
1167 }
1168
1169 void
1170 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
1171 {
1172     va_list arg_list;
1173     char buffer[MAXLEN];
1174     va_start(arg_list, format);
1175     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1176     buffer[MAXLEN-1] = 0;
1177     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
1178 }
1179
1180 void
1181 irc_mark(struct userNode *user, char *mark)
1182 {
1183     char *host = user->hostname;
1184
1185     /* 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 */
1186     if(user->mark)
1187         return;
1188
1189     /* if the mark will put us over the  host length, clip some off the left hand side
1190      * to make room...
1191      */
1192     if(strlen(host) + 1 + strlen(mark) > HOSTLEN)
1193         host += 1 + ( (strlen(host) + 1 + strlen(mark)) - HOSTLEN );
1194     putsock("%s " CMD_MARK " %s DNSBL +m %s.%s", self->numeric, user->nick, mark, host);
1195     putsock("%s " CMD_MARK " %s DNSBL_DATA %s", self->numeric, user->nick, mark);
1196
1197     /* Save it in the user */
1198     user->mark = strdup(mark);
1199
1200     /* If they are not otherwise marked, mark their host with fakehost */
1201     if(!IsFakeHost(user) && !IsSetHost(user) && !(IsHiddenHost(user) && user->handle_info) )
1202     {
1203         struct modeNode *mn = NULL;
1204         char fakehost[HOSTLEN];
1205         unsigned int count = 0;
1206         unsigned int n = 0;
1207
1208         putsock("%s " CMD_FAKEHOST " %s %s.%s", self->numeric, user->numeric, mark, host);
1209         putsock("%s " CMD_MODE " %s +x", self->numeric, user->nick);
1210
1211         snprintf(fakehost, sizeof(fakehost), "%s.%s", mark, host);
1212         safestrncpy(user->fakehost, fakehost, sizeof(user->fakehost));
1213
1214         for (n=count=0; n<user->channels.used; n++) {
1215             mn = user->channels.list[n];
1216             if (strlen(mn->channel->name) >= 1) /* Sanity */
1217                 check_bans(user, mn->channel->name);
1218         }
1219     }
1220 }
1221
1222 void irc_sno(unsigned int mask, char const* format, ...) {
1223     va_list arg_list;
1224     char buffer[MAXLEN];
1225     va_start(arg_list, format);
1226     vsnprintf(buffer, MAXLEN-2, format, arg_list);
1227     buffer[MAXLEN-1] = 0;
1228     putsock("%s " CMD_SNO " %d :%s", self->numeric, mask, buffer);
1229 }
1230
1231 void
1232 irc_sasl(struct server* dest, const char *identifier, const char *subcmd, const char *data)
1233 {
1234     putsock("%s " P10_SASL " %s %s %s %s", self->numeric, dest->numeric, identifier, subcmd, data);
1235 }
1236
1237 static void send_burst(void);
1238
1239 static void
1240 change_nicklen(int new_nicklen)
1241 {
1242     unsigned int nn;
1243     char new_nick[NICKLEN+1];
1244     struct userNode *user;
1245
1246     nicklen = new_nicklen;
1247     /* fix up any users we have here */
1248     for (nn=0; nn<=self->num_mask; nn++) {
1249         if (!(user = self->users[nn]))
1250             continue;
1251         safestrncpy(new_nick, user->nick, sizeof(new_nick));
1252         new_nick[nicklen] = 0;
1253         NickChange(user, new_nick, 1);
1254     }
1255 }
1256
1257 static CMD_FUNC(cmd_whois)
1258 {
1259     struct userNode *from;
1260     struct userNode *who;
1261     char buf[MAXLEN];
1262     unsigned int i, mlen, len;
1263
1264     if (argc < 3)
1265         return 0;
1266     if (!(from = GetUserH(origin))) {
1267         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
1268         return 0;
1269     }
1270     if (!(who = GetUserH(argv[2]))) {
1271         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
1272         return 1;
1273     }
1274
1275     if (IsFakeHost(who) && IsHiddenHost(who))
1276         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->fakehost, who->info);
1277     else if (IsHiddenHost(who) && who->handle_info && hidden_host_suffix)
1278         irc_numeric(from, RPL_WHOISUSER, "%s %s %s.%s * :%s", who->nick, who->ident, who->handle_info->handle, hidden_host_suffix, who->info);
1279     else
1280         irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
1281
1282     if (!IsService(who) || (from == who)) {
1283         struct modeNode *mn;
1284         mlen = strlen(self->name) + strlen(from->nick) + 12 + strlen(who->nick);
1285         len = 0;
1286         *buf = '\0';
1287         for (i = who->channels.used; i > 0; )
1288         {
1289             mn = who->channels.list[--i];
1290
1291             if (!IsOper(from) && (mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1292                 continue;
1293
1294             if (len + strlen(mn->channel->name) + mlen > MAXLEN - 5)
1295             {
1296                 irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1297                 *buf = '\0';
1298                 len = 0;
1299             }
1300
1301             if (IsDeaf(who))
1302                 *(buf + len++) = '-';
1303             if ((mn->channel->modes & (MODE_PRIVATE | MODE_SECRET)) && !GetUserMode(mn->channel, from))
1304                 *(buf + len++) = '*';
1305             if (mn->modes & MODE_CHANOP)
1306                 *(buf + len++) = '@';
1307             else if (mn->modes & MODE_HALFOP)
1308                 *(buf + len++) = '%';
1309             else if (mn->modes & MODE_VOICE)
1310                 *(buf + len++) = '+';
1311
1312             if (len)
1313                 *(buf + len) = '\0';
1314             strcpy(buf + len, mn->channel->name);
1315             len += strlen(mn->channel->name);
1316             strcat(buf + len, " ");
1317             len++;
1318         }
1319         if (buf[0] != '\0')
1320             irc_numeric(from, RPL_WHOISCHANNELS, "%s :%s", who->nick, buf);
1321     }
1322
1323     if (his_servername && his_servercomment && !IsOper(from) && from != who)
1324         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
1325     else
1326         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
1327
1328     if (IsAway(who))
1329         irc_numeric(from, RPL_AWAY, "%s :Away", who->nick);
1330     if (IsOper(who))
1331         irc_numeric(from, RPL_WHOISOPERATOR, "%s :%s", who->nick, IsLocal(who) ? "is a megalomaniacal power hungry tyrant" : "is an IRC Operator");
1332     if (who->handle_info)
1333         irc_numeric(from, RPL_WHOISACCOUNT, "%s %s :is logged in as", who->nick, who->handle_info->handle);
1334     if (IsHiddenHost(who) && who->handle_info && (IsOper(from) || from == who))
1335         irc_numeric(from, RPL_WHOISACTUALLY, "%s %s@%s %s :Actual user@host, Actual IP", who->nick, who->ident, who->hostname, irc_ntoa(&who->ip));
1336     if (IsLocal(who) && !IsService(who) && (IsOper(from) || from == who))
1337         irc_numeric(from, RPL_WHOISIDLE, "%s %ld %ld :seconds idle, signon time", who->nick, now - who->idle_since, who->timestamp);
1338
1339     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
1340     return 1;
1341 }
1342
1343 static CMD_FUNC(cmd_server)
1344 {
1345     struct server *srv;
1346     const char *str;
1347
1348     if (argc < 8)
1349         return 0;
1350     if (self->uplink) {
1351         /* another server introduced us */
1352         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1353         if (!srv)
1354             return 0;
1355         srv->self_burst = argv[5][0] == 'J';
1356         srv->burst = 1;
1357     } else {
1358         /* this must be our uplink */
1359         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
1360         if (!srv)
1361             return 0;
1362         srv->self_burst = argv[5][0] == 'J';
1363         srv->burst = 1;
1364         if ((argv[7][0] == '+') && !force_n2k) {
1365             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1366         }
1367         send_burst();
1368     }
1369
1370     /* Fix up our timestamps if necessary. */
1371     if (srv->boot <= PREHISTORY) {
1372         /* Server from the mists of time.. */
1373         if (srv->hops == 1) {
1374             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1375         }
1376     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1377                && enabled_string(str)) {
1378         /* If we have a reliable clock, we just keep our current time. */
1379     } else {
1380         if (srv->boot <= self->boot) {
1381             /* The other server is older than us.  Accept their timestamp.
1382              * Alternately, we are same age, but we accept their time
1383              * since we are linking to them. */
1384             self->boot = srv->boot;
1385             ioset_set_time(srv->link_time
1386 );
1387         }
1388     }
1389     if (srv == self->uplink) {
1390         extern time_t burst_begin;
1391         burst_begin = now;
1392     }
1393     return 1;
1394 }
1395
1396
1397 static CMD_FUNC(cmd_eob)
1398 {
1399     struct server *sender;
1400     dict_iterator_t it;
1401
1402     if (!(sender = GetServerH(origin)))
1403         return 0;
1404     if (sender == self->uplink) {
1405         cManager.uplink->state = CONNECTED;
1406         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1407             irc_burst(iter_data(it));
1408         dict_delete(unbursted_channels);
1409         unbursted_channels = NULL;
1410         irc_eob();
1411         irc_eob_ack();
1412
1413         /* now that we know who our uplink is,
1414          * we can center the routing map and activate auto-routing.
1415          */
1416         //activate_routing(NULL, NULL, NULL);
1417         routing_init();
1418     }
1419     sender->self_burst = 0;
1420     recalc_bursts(sender);
1421     call_server_link_funcs(sender);
1422     /* let auto-routing figure out if we were
1423      * wating on this server to link a child to it */
1424     /* DONT call this if uplink is _US_ */
1425     if(sender->uplink != self)
1426         routing_handle_connect(sender->name, sender->uplink->name);
1427     return 1;
1428 }
1429
1430 static CMD_FUNC(cmd_eob_ack)
1431 {
1432     extern time_t burst_begin;
1433
1434     if (GetServerH(origin) == self->uplink) {
1435         burst_length = now - burst_begin;
1436         self->self_burst = self->burst = 0;
1437     }
1438     cManager.uplink->state = CONNECTED;
1439     return 1;
1440 }
1441
1442 static CMD_FUNC(cmd_rping)
1443 {
1444     struct server *dest;
1445
1446     if (!(dest = GetServerN(argv[1])))
1447         return 1; /* if its a jupe or something, return 1 so its silently ignored */
1448
1449     if (dest == self)
1450         irc_rpong(argv[2], argv[3], argv[4], argv[5]);
1451
1452     return 1;
1453 }
1454
1455 static CMD_FUNC(cmd_sasl)
1456 {
1457     struct server *serv;
1458
1459     if (argc < 5)
1460         return 0;
1461
1462     serv = GetServerH(origin);
1463     if (!serv)
1464       return 0;
1465
1466     call_sasl_input_func(serv, argv[2], argv[3], argv[4], (argc>5 ? argv[5] : NULL));
1467
1468     return 1;
1469 }
1470
1471 static CMD_FUNC(cmd_ping)
1472 {
1473     struct server *srv;
1474     struct userNode *un;
1475
1476     if (argc > 3)
1477         irc_pong_asll(argv[2], argv[3]);
1478     else if ((srv = GetServerH(origin)))
1479         irc_pong(self->name, srv->numeric);
1480     else if ((un = GetUserH(origin)))
1481         irc_pong(self->name, un->numeric);
1482     else
1483         irc_pong(self->name, origin);
1484
1485     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1486     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1487     timeq_add(now + ping_freq, timed_send_ping, 0);
1488     received_ping();
1489     return 1;
1490 }
1491
1492 static CMD_FUNC(cmd_error_nick)
1493 {
1494     /* Go back to original IRC length .. and try to reconnect :/ */
1495     change_nicklen(9);
1496     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1497     return 1;
1498 }
1499
1500 struct create_desc {
1501     struct userNode *user;
1502     time_t when;
1503 };
1504
1505 static void
1506 join_helper(struct chanNode *chan, void *data)
1507 {
1508     struct create_desc *cd = data;
1509     AddChannelUser(cd->user, chan);
1510 }
1511
1512 static void
1513 create_helper(char *name, void *data)
1514 {
1515     struct create_desc *cd = data;
1516
1517     if (!strcmp(name, "0")) {
1518         while (cd->user->channels.used > 0)
1519             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1520         return;
1521     }
1522
1523     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1524 }
1525
1526 static CMD_FUNC(cmd_create)
1527 {
1528     struct create_desc cd;
1529     struct userNode *user;
1530
1531     if ((argc < 3) || !(user = GetUserH(origin)))
1532         return 0;
1533     cd.user = user;
1534     cd.when = atoi(argv[2]);
1535     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1536     return 1;
1537 }
1538
1539 static CMD_FUNC(cmd_join)
1540 {
1541     struct create_desc cd;
1542
1543     if (!(cd.user = GetUserH(origin)))
1544         return 0;
1545     if (argc < 2)
1546         return 0;
1547     else if (argc < 3)
1548         cd.when = now;
1549     else
1550         cd.when = atoi(argv[2]);
1551     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1552     return 1;
1553 }
1554
1555 static CMD_FUNC(cmd_svsjoin)
1556 {
1557     struct create_desc cd;
1558
1559     if (!(cd.user = GetUserH(argv[1])))
1560         return 0;
1561     if (argc < 3)
1562         return 0;
1563     else if (argc < 4)
1564         cd.when = now;
1565     else
1566         cd.when = atoi(argv[3]);
1567     parse_foreach(argv[2], join_helper, create_helper, NULL, NULL, &cd);
1568     return 1;
1569 }
1570
1571 static CMD_FUNC(cmd_pong)
1572 {
1573     if (argc < 3)
1574         return 0;
1575     if (!strcmp(argv[2], self->name)) {
1576         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1577         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1578         timeq_add(now + ping_freq, timed_send_ping, 0);
1579         received_ping();
1580     }
1581     return 1;
1582 }
1583
1584 static CMD_FUNC(cmd_nick)
1585 {
1586     struct userNode *user;
1587     if ((user = GetUserH(origin))) {
1588         /* nick change (since the source is a user numeric) */
1589         if (argc < 2)
1590             return 0;
1591         NickChange(user, argv[1], 1);
1592     } else {
1593         struct server *serv;
1594         struct userNode *nuser;
1595         char modes[MAXLEN];
1596         /* new nick */
1597         if (argc < 9)
1598             return 0;
1599         serv = GetServerH(origin);
1600         if (argc > 9)
1601             unsplit_string(argv+6, argc-9, modes);
1602         else
1603             strcpy(modes, "+");
1604         nuser = AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1605     }
1606     return 1;
1607 }
1608
1609 static CMD_FUNC(cmd_account)
1610 {
1611     struct userNode *user;
1612     struct server *server;
1613     struct handle_info *hi;
1614
1615     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1616         return 0; /* Origin must be server. */
1617
1618     /* This next line appears to tremple origin.. why? */
1619     user = GetUserN(argv[1]);
1620     if (!user)
1621         return 1; /* A QUIT probably passed the ACCOUNT. */
1622
1623     if(!extended_accounts) /* any need for this function without? */
1624         return 1;
1625
1626     if(!strcmp(argv[2],"C"))
1627     {
1628         if((hi = loc_auth(NULL, argv[4], argv[5], NULL)))
1629         {
1630             /* Return a AC A */
1631             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1632
1633                         log_module(MAIN_LOG, LOG_DEBUG, "loc_auth: %s\n", user->nick);
1634          }
1635         else
1636         {
1637             /* Return a AC D */
1638             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1639         }
1640         return 1;
1641     }
1642     else if(!strcmp(argv[2],"H")) /* New enhanced (host) version of C */
1643     {
1644         if((hi = loc_auth(NULL, argv[5], argv[6], argv[4] )))
1645         {
1646             /* Return a AC A */
1647             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1648         }
1649         else
1650         {
1651             /* Return a AC D */
1652             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1653         }
1654         return 1;
1655     }
1656     else if(!strcmp(argv[2],"S"))
1657     {
1658         if((hi = loc_auth(argv[5], argv[6], argv[7], argv[4])))
1659         {
1660             /* Return a AC A */
1661             putsock("%s " P10_ACCOUNT " %s A %s "FMT_TIME_T, self->numeric, server->numeric , argv[3], hi->registered);
1662         }
1663         else
1664         {
1665             /* Return a AC D */
1666             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1667         }
1668         return 1;
1669     }
1670     else if(!strcmp(argv[2],"R"))
1671        call_account_func(user, argv[3]);
1672     else
1673         call_account_func(user, argv[2]); /* For backward compatability */
1674     return 1;
1675 }
1676
1677 static CMD_FUNC(cmd_fakehost)
1678 {
1679     struct userNode *user;
1680
1681     if ((argc < 3) || !origin || !GetServerH(origin))
1682         return 0;
1683     if (!(user = GetUserN(argv[1])))
1684         return 1;
1685     assign_fakehost(user, argv[2], 0);
1686     return 1;
1687 }
1688
1689 static struct {
1690   char        *name;
1691   unsigned int priv;
1692 } privtab[] = {
1693 #define P(priv)         { #priv, PRIV_ ## priv }
1694   P(CHAN_LIMIT),     P(MODE_LCHAN),     P(WALK_LCHAN),    P(DEOP_LCHAN),
1695   P(SHOW_INVIS),     P(SHOW_ALL_INVIS), P(UNLIMIT_QUERY), P(KILL),
1696   P(LOCAL_KILL),     P(REHASH),         P(RESTART),       P(DIE),
1697   P(GLINE),          P(LOCAL_GLINE),    P(JUPE),          P(LOCAL_JUPE),
1698   P(OPMODE),         P(LOCAL_OPMODE),   P(SET),           P(WHOX),
1699   P(BADCHAN),        P(LOCAL_BADCHAN),  P(SEE_CHAN),      P(PROPAGATE),
1700   P(DISPLAY),        P(SEE_OPERS),      P(WIDE_GLINE),    P(FORCE_OPMODE),
1701   P(FORCE_LOCAL_OPMODE), P(REMOTEREHASH), P(CHECK), P(SEE_SECRET_CHAN),
1702   P(SHUN),           P(LOCAL_SHUN),     P(WIDE_SHUN),     P(ZLINE),
1703   P(LOCAL_ZLINE),    P(WIDE_ZLINE),     P(LIST_CHAN),     P(WHOIS_NOTICE),
1704   P(HIDE_IDLE),      P(XTRAOP),         P(HIDE_CHANNELS), P(DISPLAY_MODE),
1705   P(FREEFORM),       P(REMOVE),         P(SPAMFILTER),
1706 #undef P
1707   { 0, 0 }
1708 };
1709
1710 char *client_report_privs(struct userNode *client)
1711 {
1712   int i;
1713
1714   privbuf[0] = '\0';
1715   for (i = 0; privtab[i].name; i++) {
1716     if (HasPriv(client, privtab[i].priv)) {
1717       strcat(privbuf, privtab[i].name);
1718       strcat(privbuf, " ");
1719     }
1720   }
1721
1722   privbuf[strlen(privbuf)] = 0;
1723
1724   return privbuf;
1725 }
1726
1727 int clear_privs(struct userNode *who) {
1728   int i = 0;
1729   assert(0 != who);
1730
1731   for (i = 0; privtab[i].name; i++)
1732     RevokePriv(who, privtab[i].priv);
1733
1734   return 0;
1735 }
1736
1737 int client_modify_priv_by_name(struct userNode *who, char *priv, int what) {
1738  int i = 0;
1739  assert(0 != priv);
1740  assert(0 != who);
1741
1742   for (i = 0; privtab[i].name; i++) {
1743     if (0 == strcmp(privtab[i].name, priv)) {
1744       if (what == PRIV_ADD)
1745         GrantPriv(who, privtab[i].priv);
1746       else if (what == PRIV_DEL) {
1747         RevokePriv(who, privtab[i].priv);
1748       }
1749     }
1750   }
1751   return 0;
1752 }
1753
1754 int check_priv(char *priv)
1755 {
1756   int i;
1757
1758   for (i = 0; privtab[i].name; i++) {
1759     if (0 == strcmp(privtab[i].name, priv)) {
1760       return 1;
1761     }
1762   }
1763   return 0;
1764 }
1765
1766 void
1767 irc_privs(struct userNode *target, char *flag, int add)
1768 {
1769     client_modify_priv_by_name(target, flag, add);
1770     putsock("%s " P10_PRIVS " %s %s%s", self->numeric, target->numeric, (add == PRIV_ADD) ? "+" : "-", flag);
1771 }
1772
1773 void
1774 irc_raw_privs(struct userNode *target, const char *privs)
1775 {
1776     putsock("%s " P10_PRIVS " %s %s", self->numeric, target->numeric,  privs);
1777 }
1778
1779 static CMD_FUNC(cmd_privs)
1780 {
1781     char *tstr = NULL;
1782     char buf[512] = "";
1783     char *p = 0;
1784     char *tmp;
1785
1786     int what = PRIV_ADD;
1787     int type = 0;
1788
1789     unsigned int i;
1790
1791     struct server *sender;
1792     struct userNode *user;
1793
1794
1795     tstr = conf_get_data("server/type", RECDB_QSTRING);
1796     if(tstr)
1797         type = atoi(tstr);
1798
1799
1800     if (!(sender = GetServerH(origin))) { /* from oper */
1801         return 1; /* ignore as no services have privs set */
1802     } else { /* from server */
1803         if (type < 5)
1804             return 1; /* silently ignore */
1805
1806         user = argc > 1 ? GetUserN(argv[1]) : NULL;
1807
1808         if (!user)
1809             return 0;
1810
1811         for (i=1; i<argc; i++) {
1812             strcat(buf, argv[i]);
1813             strcat(buf, " ");
1814         }
1815
1816         for (i = 2; i < argc; i++) {
1817             if (*argv[i] == '+') { what = PRIV_ADD; argv[i]++; }
1818             if (*argv[i] == '-') { what = PRIV_DEL; argv[i]++; }
1819             for (tmp = x3_strtok(&p, argv[i], ","); tmp;
1820                  tmp = x3_strtok(&p, NULL, ",")) {
1821                 if (!strcmp(tmp, "PRIV_NONE")) {
1822                     if (now > user->timestamp+5)
1823                         clear_privs(user);
1824                     break;
1825                 } else
1826                     client_modify_priv_by_name(user, tmp, what);
1827             }
1828         }
1829     }
1830     return 1;
1831 }
1832
1833 static CMD_FUNC(cmd_burst)
1834 {
1835     extern int rel_age;
1836     char modes[MAXLEN], *members = "";
1837     static char exemptlist[MAXLEN], banlist[MAXLEN];
1838     unsigned int next = 3, res = 1;
1839     int ctype = 0, echeck = 0, bcheck = 0;
1840     struct chanData *cData;
1841     struct chanNode *cNode;
1842     struct userNode *un;
1843     struct modeNode *mNode;
1844     long mode;
1845     int oplevel = -1;
1846     int type = 0;
1847     char *user, *end, sep;
1848     char *tstr;
1849     time_t in_timestamp;
1850     char* parm = NULL;
1851
1852     if (argc < 3)
1853         return 0;
1854     modes[0] = 0;
1855
1856     tstr = conf_get_data("server/type", RECDB_QSTRING);
1857     if(tstr) {
1858         type = atoi(tstr);
1859     }
1860
1861     exemptlist[0] = 0;
1862     banlist[0] = 0;
1863
1864     while (next < argc) {
1865         switch (argv[next][0]) {
1866         case '+': {
1867             const char *pos;
1868             int n_modes;
1869             for (pos=argv[next], n_modes = 1; *pos; pos++)
1870                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1871                     || (*pos == 'U') || ((type > 7) && (*pos == 'L')))
1872                     n_modes++;
1873             if (next + n_modes > argc)
1874                 n_modes = argc - next;
1875             unsplit_string(argv+next, n_modes, modes);
1876             next += n_modes;
1877             break;
1878         }
1879         case '%': {
1880             ctype = 1;
1881             for(parm = mysep(&argv[next], " "); /* parm = first param */
1882                   parm;   /* While param is not null */
1883                   parm = mysep(&argv[next], " ")  /* parm = next param */
1884                )
1885             {
1886               if (0 == strcmp("~", parm))
1887                 ctype = 2;
1888               if (ctype == 1) {
1889                 if (bcheck == 0) {
1890                   /* strip % char off start of very first ban */
1891                   if (strlen(parm) > 1) {
1892                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1893                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1894                   }
1895                   bcheck = 1;
1896                 } else {
1897                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1898                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1899                 }
1900               } else if (ctype == 2) {
1901                 if (echeck == 0) {
1902                    echeck = 1;
1903                 } else {
1904                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1905                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1906                 }
1907               }
1908             }
1909             next++;
1910             break;
1911         }
1912         default: members = argv[next++]; break;
1913       }
1914     }
1915
1916     in_timestamp = atoi(argv[2]);
1917     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1918         cNode->timestamp = in_timestamp;
1919         dict_remove(unbursted_channels, cNode->name);
1920         irc_burst(cNode);
1921     }
1922     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1923     cData = cNode->channel_info;
1924
1925     if (!cData) {
1926         if (cNode->modes & MODE_REGISTERED) {
1927             irc_join(opserv, cNode);
1928             irc_mode(opserv, cNode, "-z");
1929             irc_part(opserv, cNode, "");
1930         }
1931     }
1932
1933     /* Burst channel members in now. */
1934     for (user = members, sep = *members, mode = 0; sep; user = end) {
1935         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1936         sep = *end++; end[-1] = 0;
1937         if (sep == ':') {
1938             mode = 0;
1939             while ((sep = *end++)) {
1940                 if (sep == 'o') {
1941                     mode |= MODE_CHANOP;
1942                     oplevel = -1;
1943                 } else if (sep == 'h') {
1944                     mode |= MODE_HALFOP;
1945                     oplevel = -1;
1946                 } else if (sep == 'v') {
1947                     mode |= MODE_VOICE;
1948                     oplevel = -1;
1949                 } else if (isdigit(sep)) {
1950                     mode |= MODE_CHANOP;
1951                     if (oplevel >= 0)
1952                         oplevel += parse_oplevel(end);
1953                     else
1954                         oplevel = parse_oplevel(end);
1955                     while (isdigit(*end)) end++;
1956                 } else
1957                     break;
1958             }
1959             if (rel_age < 0)
1960                 mode = 0;
1961         }
1962         if (!(un = GetUserN(user))) {
1963             res = 0;
1964             continue;
1965         }
1966         if ((mNode = AddChannelUser(un, cNode))) {
1967             mNode->modes = mode;
1968             mNode->oplevel = oplevel;
1969         }
1970     }
1971
1972     return res;
1973 }
1974
1975 /* TODO:
1976  * This is a stub that doesn't actually do anything. It should be completed
1977  * so that bans on *!*@markname.* match users as it does in nefarious
1978  */
1979 static CMD_FUNC(cmd_mark)
1980 {
1981     struct userNode *target;
1982     /*
1983      * log_module(MAIN_LOG, LOG_ERROR, "DEBUG: mark, user %s, type %s, arg %s", argv[1], argv[2], argv[3]);
1984      */
1985
1986     if(argc < 4)
1987         return 0;
1988     if(!strcasecmp(argv[2], "DNSBL")) {
1989         /* DNSBL <modes> */
1990         return 1;
1991     }
1992     else if(!strcasecmp(argv[2], "DNSBL_DATA")) {
1993         /* DNSBL_DATA name */
1994         target = GetUserH(argv[1]);
1995         if(!target) {
1996             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose dnsbl mark is changing.", argv[1]);
1997             return 0;
1998         }
1999         target->mark = strdup(argv[3]);
2000         return 1;
2001
2002     }
2003     else if(!strcasecmp(argv[2], "CVERSION")) {
2004         /* CTCP VERSION mark */
2005         target = GetUserH(argv[1]);
2006         if(!target) {
2007             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose version mark is changing.", argv[1]);
2008             return 0;
2009         }
2010
2011         char *version = unsplit_string(argv + 3, argc - 3, NULL);
2012         if(!version)
2013             version = "";
2014
2015         target->version_reply = strdup(version);
2016
2017         if(match_ircglob(version, "WebTV;*"))
2018             target->no_notice = true; /* webbies cant see notices */
2019
2020         return 1;
2021     }
2022     else if(!strcasecmp(argv[2], "SSLCLIFP")) {
2023         /* SSL fingerprint mark */
2024         target = GetUserH(argv[1]);
2025         if(!target) {
2026             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose SSL fingerprint mark is changing.", argv[1]);
2027             return 0;
2028         }
2029
2030         char *sslfp = unsplit_string(argv + 3, argc - 3, NULL);
2031         if(!sslfp)
2032             sslfp = "";
2033
2034         target->sslfp = strdup(sslfp);
2035
2036         return 1;
2037     }
2038     /* unknown type of mark */
2039     return 1;
2040 }
2041
2042 static CMD_FUNC(cmd_mode)
2043 {
2044     struct chanNode *cn;
2045     struct userNode *un;
2046     char *sethost; // sethost - reed/apples
2047     int i; // sethost - reed/apples
2048
2049     if (argc < 3)
2050         return 0;
2051     if (!IsChannelName(argv[1])) {
2052         un = GetUserH(argv[1]);
2053         if (!un) {
2054             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
2055             return 0;
2056         }
2057         // sethost - reed/apples
2058         if (argc == 3)
2059         mod_usermode(un, argv[2]);
2060         else {
2061           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
2062           i = 0;
2063           while((sethost[i++] = *argv[2]++));
2064           i--;
2065          sethost[i++] = ' ';
2066           while((sethost[i++] = *argv[3]++));
2067           mod_usermode(un, sethost); // sethost - reed/apples
2068         }
2069
2070         return 1;
2071     }
2072
2073     if (!(cn = GetChannel(argv[1]))) {
2074         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2075         return 0;
2076     }
2077     if ((un = GetUserH(origin))) {
2078         struct modeNode *mn;
2079         /* Update idle time for person setting the mode */
2080         if ((mn = GetUserMode(cn, un)))
2081             mn->idle_since = now;
2082     } else {
2083         /* If it came from a server, reset timestamp to re-sync. */
2084         cn->timestamp = atoi(argv[argc-1]);
2085     }
2086
2087     if (checkDefCon(DEFCON_NO_MODE_CHANGE) && !IsOper(un)) {
2088         const char *str;
2089         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2090         if (str) {
2091             char modes[MODELEN];
2092             struct userNode *opserv = GetUserH(str);
2093
2094             send_message_type(4, un, opserv, "Channel modes cannot be changed due to DefCon level %d in effect, please try again soon", DefConLevel);
2095             irc_make_chanmode(cn, modes);
2096             irc_mode(opserv, cn, modes);
2097             irc_mode(opserv, cn, DefConChanModes);
2098         }
2099         return 1;
2100     }
2101
2102
2103     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
2104 }
2105
2106 static CMD_FUNC(cmd_opmode)
2107 {
2108     struct chanNode *cn;
2109     struct userNode *un;
2110
2111     if (argc < 3)
2112         return 0;
2113
2114     if (!(cn = GetChannel(argv[1]))) {
2115         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2116         return 0;
2117     }
2118     if (!(un = GetUserH(origin))) {
2119         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
2120         return 0;
2121     }
2122     if (!IsOper(un)) {
2123         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
2124         return 0;
2125     }
2126
2127     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
2128 }
2129
2130 static int clear_chanmode(struct chanNode *channel, const char *modes);
2131
2132 static CMD_FUNC(cmd_clearmode)
2133 {
2134     struct chanNode *cn;
2135     struct userNode *un;
2136
2137     if (argc < 3)
2138         return 0;
2139
2140     if (!(cn = GetChannel(argv[1]))) {
2141         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
2142         return 0;
2143     }
2144     if (!(un = GetUserH(origin))) {
2145         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
2146         return 0;
2147     }
2148     if (!IsOper(un)) {
2149         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
2150         return 0;
2151     }
2152
2153     return clear_chanmode(cn, argv[2]);
2154 }
2155
2156 static CMD_FUNC(cmd_topic)
2157 {
2158     struct chanNode *cn;
2159     time_t chan_ts, topic_ts;
2160     struct userNode *user;
2161
2162     if (argc < 3)
2163         return 0;
2164     if (!(cn = GetChannel(argv[1]))) {
2165         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
2166         return 0;
2167     }
2168
2169
2170     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
2171         user = GetUserH(origin);
2172         chan_ts = atoi(argv[2]);
2173         topic_ts = atoi(argv[3]);
2174     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
2175         user = GetUserH(strtok(argv[2], "!"));
2176         chan_ts = atoi(argv[3]);
2177         topic_ts = atoi(argv[4]);
2178     } else {                      /* Regular IRCu (No Topic Bursting)*/
2179         user = GetUserH(origin);
2180         chan_ts = cn->timestamp;
2181         topic_ts = now;
2182     }
2183
2184     SetChannelTopic(cn, user, user, argv[argc-1], 0);
2185     cn->topic_time = topic_ts;
2186     return 1;
2187 }
2188
2189 static CMD_FUNC(cmd_num_topic)
2190 {
2191     struct chanNode *cn;
2192
2193     if (!argv[0])
2194         return 0; /* huh? */
2195     if (argv[2]) {
2196         cn = GetChannel(argv[2]);
2197         if (!cn) {
2198             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
2199             return 0;
2200         }
2201     } else
2202         return 0;
2203
2204     switch (atoi(argv[0])) {
2205     case 331:
2206         cn->topic_time = 0;
2207         break;  /* no topic */
2208     case 332:
2209         if (argc < 4)
2210             return 0;
2211         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
2212         break;
2213     case 333:
2214         if (argc < 5)
2215             return 0;
2216         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
2217         cn->topic_time = atoi(argv[4]);
2218         break;
2219     default:
2220         return 0; /* should never happen */
2221     }
2222     return 1;
2223 }
2224
2225 static CMD_FUNC(cmd_num_gline)
2226 {
2227     if (argc < 7) {
2228         if (argc < 6)
2229             return 0;
2230         else
2231             gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
2232     } else {
2233         if (!strcmp(argv[5], "+"))
2234           gline_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0, 0);
2235     }
2236     return 1;
2237 }
2238
2239 static CMD_FUNC(cmd_num_shun)
2240 {
2241     if (argc < 7) {
2242         if (argc < 6)
2243             return 0;
2244         else
2245             shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
2246     } else {
2247         if (!strcmp(argv[5], "+"))
2248             shun_add(origin, argv[3], atoi(argv[4])-now, argv[6], now, 0);
2249     }
2250     return 1;
2251 }
2252
2253 static CMD_FUNC(cmd_quit)
2254 {
2255     struct userNode *user;
2256     if (argc < 2)
2257         return 0;
2258     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
2259      * call DelUser unless we have the user in our grasp. */
2260     if ((user = GetUserH(origin)))
2261         DelUser(user, NULL, false, argv[1]);
2262     return 1;
2263 }
2264
2265 static CMD_FUNC(cmd_kill)
2266 {
2267     struct userNode *user;
2268     if (argc < 2)
2269         return 0;
2270     user = GetUserN(argv[1]);
2271     if (!user) {
2272         /* If we get a KILL for a non-existent user, it could be a
2273          * Ghost response to a KILL we sent out earlier.  So we only
2274          * whine if the target is local.
2275          */
2276         if (!strncmp(argv[1], self->numeric, strlen(self->numeric))) {
2277             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
2278             return 0;
2279         }
2280         return 1;
2281     }
2282
2283     if (IsLocal(user) && IsService(user)) {
2284         /* TODO: rate limit this so silly things don't happen. */
2285         ReintroduceUser(user);
2286         return 1;
2287     }
2288
2289     DelUser(user, NULL, false, argv[2]);
2290     return 1;
2291 }
2292
2293 static CMD_FUNC(cmd_svspart)
2294 {
2295     struct userNode *user;
2296
2297     if (argc < 3)
2298         return 0;
2299     user = GetUserN(argv[1]);
2300     if (!user)
2301         return 0;
2302     parse_foreach(argv[2], part_helper, NULL, NULL, NULL, user);
2303     return 1;
2304 }
2305
2306 static CMD_FUNC(cmd_silence)
2307 {
2308     struct userNode *user;
2309     char *mask;
2310     char *new_mask;
2311     unsigned int i;
2312
2313     if (argc < 2)
2314         return 0;
2315
2316     user = GetUserN(argv[1]);
2317
2318     /* Sanity, go nuts if this happens */
2319     if (!user)
2320         return 0;
2321
2322     /*  We can safely ignore this if a user adding a silence is not
2323      *  ignored. However this brings up a TODO. If a user logs in and
2324      *  they have silences on the IRCd then we need to set them here
2325      *  somehow
2326      */
2327     if (!user->handle_info)
2328         return 1;
2329
2330     mask = argv[2];
2331
2332     if (*mask == '-') {
2333         for (i=0; i<user->handle_info->ignores->used; i++) {
2334             if (!irccasecmp(mask+1, user->handle_info->ignores->list[i]))
2335                 user->handle_info->ignores->list[i] = user->handle_info->ignores->list[--user->handle_info->ignores->used];
2336         }
2337     } else {
2338         for (i=0; i<user->handle_info->ignores->used; i++) {
2339             if (!strcmp(mask+1, user->handle_info->ignores->list[i]))
2340                 return 1; /* Already on the users NickServ ignore list, safely ignore */
2341         }
2342
2343         new_mask = strdup(mask+1);
2344         string_list_append(user->handle_info->ignores, new_mask);
2345     }
2346     return 1;
2347 }
2348
2349 static CMD_FUNC(cmd_kick)
2350 {
2351     if (argc < 3)
2352         return 0;
2353     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
2354     return 1;
2355 }
2356
2357 static CMD_FUNC(cmd_squit)
2358 {
2359     struct server *server;
2360     char *uplink;
2361
2362     if (argc < 4)
2363         return 0;
2364     if (!(server = GetServerH(argv[1])))
2365         return 0;
2366
2367     if (server == self->uplink) {
2368         /* Force a reconnect to the currently selected server. */
2369         cManager.uplink->tries = 0;
2370         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
2371         close_socket();
2372         return 1;
2373     }
2374
2375     uplink = strdup(server->uplink->name);
2376     DelServer(server, 0, argv[3]);
2377     /* if its a pingout and pingout connecting is enabled
2378                or its a read error and readerror connecting is enabled
2379                or were doing a "N" and i need to connect that server somewhere */
2380     routing_handle_squit(argv[1], uplink, argv[3]);
2381     free(uplink);
2382     return 1;
2383 }
2384
2385 static CMD_FUNC(cmd_privmsg)
2386 {
2387     struct privmsg_desc pd;
2388     if (argc < 3)
2389         return 0;
2390     pd.user = GetUserH(origin);
2391     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
2392         return 1;
2393
2394     if (checkDefCon(DEFCON_OPER_ONLY) && !IsOper(pd.user)) {
2395         const char *str;
2396         str = conf_get_data("services/opserv/nick", RECDB_QSTRING);
2397         if (str)
2398             send_message_type(4, pd.user, GetUserH(str), "Services are currently not available, please try again soon");
2399         return 1;
2400     }
2401
2402     if (checkDefCon(DEFCON_SILENT_OPER_ONLY) && !IsOper(pd.user))
2403         return 1; /* Silently Ignore */
2404
2405     pd.is_notice = 0;
2406     pd.text = argv[argc - 1];
2407     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2408
2409     return 1;
2410 }
2411
2412 static CMD_FUNC(cmd_notice)
2413 {
2414     struct privmsg_desc pd;
2415     struct server *srv;
2416     int nuser = 0;
2417
2418     if (argc != 3)
2419         return 0;
2420
2421     pd.user = GetUserH(origin);
2422     if(!pd.user)
2423         nuser = 1;
2424     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user))) {
2425     }
2426     else {
2427         pd.is_notice = 1;
2428         pd.text = argv[2];
2429         parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
2430     }
2431
2432     srv = GetServerH(origin);
2433     if(srv) {
2434         char *sargv[MAXNUMPARAMS];
2435         int sargc;
2436
2437         sargc = split_line(argv[2], true, MAXNUMPARAMS, sargv);
2438
2439         if(!strcasecmp(sargv[0], "Connect:")) {
2440             /* :Connect: Host shoe.loxxin.net not listed in ircd.conf */
2441             if(!strcasecmp(sargv[3], "not") && !strcasecmp(sargv[4], "listed")) {
2442                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+3, sargc-3, NULL));
2443             }
2444         }
2445         else if(!strcasecmp(sargv[0], "Link")) {
2446             /* :Link with mephisto.etheria.cx cancelled: Server mephisto.etheria.cx[216.46.33.71]
2447              *
2448              * :Link with laptop.afternet.org cancelled: Connection refused
2449              */
2450             if(!strcasecmp(sargv[3], "cancelled:")) {
2451                 routing_handle_connect_failure(srv, sargv[2], unsplit_string(sargv+4, sargc-4, NULL));
2452             }
2453         }
2454     }
2455     return 1;
2456 }
2457
2458 static CMD_FUNC(cmd_away)
2459 {
2460     struct userNode *uNode;
2461
2462     uNode = GetUserH(origin);
2463     if (!uNode)
2464         return 1;
2465     if (argc < 2)
2466         uNode->modes &= ~FLAGS_AWAY;
2467     else
2468         uNode->modes |= FLAGS_AWAY;
2469     return 1;
2470 }
2471
2472 static CMD_FUNC(cmd_gline)
2473 {
2474     if (argc < 3)
2475         return 0;
2476     if (argv[2][0] == '+') {
2477         if (argc < 5)
2478             return 0;
2479         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
2480         return 1;
2481     } else if (argv[2][0] == '-') {
2482         gline_remove(argv[2]+1, 0);
2483         return 1;
2484     } else
2485         return 0;
2486 }
2487
2488 static CMD_FUNC(cmd_sgline)
2489 {
2490     struct server *sender;
2491
2492     if (argc < 4)
2493         return 0;
2494
2495     if (!(sender = GetServerH(origin)))
2496         return 0;
2497
2498     gline_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1, 0);
2499     return 1;
2500 }
2501
2502 static CMD_FUNC(cmd_sshun)
2503 {
2504     struct server *sender;
2505
2506     if (argc < 4)
2507         return 0;
2508
2509     if (!(sender = GetServerH(origin)))
2510         return 0;
2511
2512     shun_add(origin, argv[1], strtoul(argv[2], NULL, 0), argv[argc-1], now, 1);
2513     return 1;
2514 }
2515
2516 static CMD_FUNC(cmd_shun)
2517 {
2518     if (argc < 3)
2519         return 0;
2520     if (argv[2][0] == '+') {
2521         if (argc < 5)
2522             return 0;
2523         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
2524         return 1;
2525     } else if (argv[2][0] == '-') {
2526         shun_remove(argv[2]+1, 0);
2527         return 1;
2528     } else
2529         return 0;
2530 }
2531
2532 static CMD_FUNC(cmd_svsnick)
2533 {
2534     struct userNode *target, *dest;
2535     if ((argc < 4)
2536         || !(target = GetUserN(argv[1]))
2537         || !IsLocal(target)
2538         || (dest = GetUserH(argv[2])))
2539         return 0;
2540     NickChange(target, argv[2], 0);
2541     return 1;
2542 }
2543
2544 void
2545 free_user(struct userNode *user)
2546 {
2547     free(user->nick);
2548     free(user);
2549 }
2550
2551 static void
2552 parse_cleanup(UNUSED_ARG(void *extra))
2553 {
2554     unsigned int nn;
2555     free(of_list);
2556     free(of_list_extra);
2557     free(privmsg_funcs);
2558     num_privmsg_funcs = 0;
2559     free(notice_funcs);
2560     num_notice_funcs = 0;
2561     free(mcf_list);
2562     dict_delete(irc_func_dict);
2563     for (nn=0; nn<dead_users.used; nn++)
2564         free_user(dead_users.list[nn]);
2565     userList_clean(&dead_users);
2566 }
2567
2568 static void
2569 p10_conf_reload(void) {
2570     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
2571     his_servername = conf_get_data("server/his_servername", RECDB_QSTRING);
2572     his_servercomment = conf_get_data("server/his_servercomment", RECDB_QSTRING);
2573 }
2574
2575 static void
2576 remove_unbursted_channel(struct chanNode *cNode, UNUSED_ARG(void *extra)) {
2577     if (unbursted_channels)
2578         dict_remove(unbursted_channels, cNode->name);
2579 }
2580
2581 void
2582 init_parse(void)
2583 {
2584     const char *str, *desc;
2585     int numnick, usermask, max_users;
2586     char numer[COMBO_NUMERIC_LEN+1];
2587
2588     /* read config items */
2589     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
2590     extended_accounts = str ? enabled_string(str) : 1;
2591     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
2592     ping_freq = str ? ParseInterval(str) : 120;
2593     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
2594     ping_timeout = str ? ParseInterval(str) : 30;
2595     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
2596     force_n2k = str ? enabled_string(str) : 1;
2597     str = conf_get_data("server/numeric", RECDB_QSTRING);
2598     if (!str) {
2599         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
2600         exit(1);
2601     }
2602     numnick = atoi(str);
2603     str = conf_get_data("server/max_users", RECDB_QSTRING);
2604     max_users = str ? atoi(str) : 4096;
2605     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
2606     usermask--;
2607     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
2608         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
2609     else
2610         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
2611
2612     str = conf_get_data("server/hostname", RECDB_QSTRING);
2613     desc = conf_get_data("server/description", RECDB_QSTRING);
2614     if (!str || !desc) {
2615         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
2616         exit(1);
2617     }
2618     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
2619     conf_register_reload(p10_conf_reload);
2620
2621     irc_func_dict = dict_new();
2622     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
2623     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
2624     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
2625     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
2626     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
2627     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
2628     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
2629     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
2630     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
2631     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
2632     dict_insert(irc_func_dict, CMD_MARK, cmd_mark);
2633     dict_insert(irc_func_dict, TOK_MARK, cmd_mark);
2634     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
2635     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
2636     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
2637     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
2638     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
2639     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
2640     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
2641     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
2642     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
2643     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
2644     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
2645     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
2646     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
2647     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
2648     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
2649     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
2650     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
2651     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
2652     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
2653     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
2654     dict_insert(irc_func_dict, CMD_PART, cmd_part);
2655     dict_insert(irc_func_dict, TOK_PART, cmd_part);
2656     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
2657     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
2658     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
2659     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
2660     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
2661     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
2662     dict_insert(irc_func_dict, CMD_SILENCE, cmd_silence);
2663     dict_insert(irc_func_dict, TOK_SILENCE, cmd_silence);
2664     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
2665     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
2666     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
2667     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
2668     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
2669     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
2670     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
2671     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
2672     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
2673     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
2674     dict_insert(irc_func_dict, CMD_SVSJOIN, cmd_svsjoin);
2675     dict_insert(irc_func_dict, TOK_SVSJOIN, cmd_svsjoin);
2676     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
2677     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
2678     dict_insert(irc_func_dict, CMD_SVSPART, cmd_svspart);
2679     dict_insert(irc_func_dict, TOK_SVSPART, cmd_svspart);
2680     dict_insert(irc_func_dict, CMD_SWHOIS, cmd_dummy);
2681     dict_insert(irc_func_dict, TOK_SWHOIS, cmd_dummy);
2682     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
2683     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
2684     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
2685     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
2686     dict_insert(irc_func_dict, CMD_SGLINE, cmd_sgline);
2687     dict_insert(irc_func_dict, TOK_SGLINE, cmd_sgline);
2688     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
2689     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
2690     dict_insert(irc_func_dict, CMD_SSHUN, cmd_sshun);
2691     dict_insert(irc_func_dict, TOK_SSHUN, cmd_sshun);
2692     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
2693     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
2694     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
2695     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
2696     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
2697     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
2698     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
2699     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
2700     dict_insert(irc_func_dict, CMD_SMO, cmd_dummy);
2701     dict_insert(irc_func_dict, TOK_SMO, cmd_dummy);
2702     dict_insert(irc_func_dict, CMD_SNO, cmd_dummy);
2703     dict_insert(irc_func_dict, TOK_SNO, cmd_dummy);
2704
2705     dict_insert(irc_func_dict, CMD_RPING, cmd_rping);
2706     dict_insert(irc_func_dict, TOK_RPING, cmd_rping);
2707     dict_insert(irc_func_dict, CMD_RPONG, cmd_dummy);
2708     dict_insert(irc_func_dict, TOK_RPONG, cmd_dummy);
2709
2710     dict_insert(irc_func_dict, CMD_SASL, cmd_sasl);
2711     dict_insert(irc_func_dict, TOK_SASL, cmd_sasl);
2712
2713     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
2714      * Apparently to obliterate channels from any servers that think they
2715      * exist?
2716      */
2717     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
2718     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
2719     /* Ignore invites */
2720     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
2721     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
2722     /* DESYNCH is just informational, so ignore it */
2723     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
2724     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
2725     /* Ignore channel operator notices. */
2726     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
2727     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
2728     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
2729     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
2730     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2731     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2732     /* Ignore opers being silly. */
2733     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
2734     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
2735     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
2736     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
2737     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
2738     /* Ignore dnsbl exemptions */
2739     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
2740     dict_insert(irc_func_dict, CMD_PRIVS, cmd_privs);
2741     dict_insert(irc_func_dict, TOK_PRIVS, cmd_privs);
2742     /* ignore ALIST for now */
2743     dict_insert(irc_func_dict, TOK_ALIST, cmd_dummy);
2744     dict_insert(irc_func_dict, CMD_ALIST, cmd_dummy);
2745     /* ignore SPAMFILTER */
2746     dict_insert(irc_func_dict, TOK_SPAMFILTER, cmd_dummy);
2747     dict_insert(irc_func_dict, CMD_SPAMFILTER, cmd_dummy);
2748     /* Ignore remote luser */
2749     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
2750     /* We have reliable clock!  Always!  Wraaa! */
2751     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
2752     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
2753     /* Ignore ZLINE/ZL/REMOVE/RM */
2754     dict_insert(irc_func_dict, CMD_ZLINE, cmd_dummy);
2755     dict_insert(irc_func_dict, TOK_ZLINE, cmd_dummy);
2756     dict_insert(irc_func_dict, CMD_REMOVE, cmd_dummy);
2757     dict_insert(irc_func_dict, TOK_REMOVE, cmd_dummy);
2758
2759     /* ignore /trace and /motd commands targetted at us */
2760     dict_insert(irc_func_dict, TOK_TRACE, cmd_dummy);
2761     dict_insert(irc_func_dict, TOK_MOTD, cmd_dummy);
2762     dict_insert(irc_func_dict, TOK_UPING, cmd_dummy);
2763
2764     /* handle topics */
2765     dict_insert(irc_func_dict, "331", cmd_num_topic);
2766     dict_insert(irc_func_dict, "332", cmd_num_topic);
2767     dict_insert(irc_func_dict, "333", cmd_num_topic);
2768     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
2769     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
2770     /* ban list resetting */
2771     /* "stats g" responses */
2772     dict_insert(irc_func_dict, "230", cmd_dummy); /* ignore stats headers */
2773     dict_insert(irc_func_dict, "247", cmd_num_gline);
2774     dict_insert(irc_func_dict, "542", cmd_num_shun);
2775     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
2776     /* other numeric responses we might get */
2777     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
2778     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
2779     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
2780     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
2781     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
2782     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
2783     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
2784     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
2785     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
2786
2787     num_privmsg_funcs = 16;
2788     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
2789     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
2790
2791     num_notice_funcs = 16;
2792     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
2793     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
2794
2795     userList_init(&dead_users);
2796     reg_del_channel_func(remove_unbursted_channel, NULL);
2797     reg_exit_func(parse_cleanup, NULL);
2798     // reg_notice_func(opserv, check_ctcp);
2799 }
2800
2801 int
2802 parse_line(char *line, int recursive)
2803 {
2804     char *argv[MAXNUMPARAMS], *origin;
2805     int argc, cmd, res=0;
2806     cmd_func_t *func;
2807
2808     argc = split_line(line, true, MAXNUMPARAMS, argv);
2809     cmd = self->uplink || !argv[0][1] || !argv[0][2];
2810     if (argc > cmd) {
2811         if (cmd) {
2812             if (argv[0][0] == ':') {
2813                 origin = argv[0]+1;
2814             } else if (!argv[0][1] || !argv[0][2]) {
2815                 struct server *sNode = GetServerN(argv[0]);
2816                 origin = sNode ? sNode->name : 0;
2817             } else {
2818                 struct userNode *uNode = GetUserN(argv[0]);
2819                 origin = uNode ? uNode->nick : 0;
2820             }
2821         } else
2822             origin = 0;
2823         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
2824             res = func(origin, argc-cmd, argv+cmd);
2825     }
2826     if (!res) {
2827         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
2828     } else if (!recursive) {
2829         unsigned int i;
2830         for (i=0; i<dead_users.used; i++)
2831             free_user(dead_users.list[i]);
2832         dead_users.used = 0;
2833     }
2834     return res;
2835 }
2836
2837 static void
2838 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
2839 {
2840     char *j, old;
2841
2842     do {
2843         j = target_list;
2844         while (*j != 0 && *j != ',')
2845             j++;
2846         old = *j;
2847         *j = 0;
2848
2849         if (IsChannelName(target_list)
2850             || (target_list[0] == '0' && target_list[1] == '\0')) {
2851             struct chanNode *chan = GetChannel(target_list);
2852
2853             if (chan) {
2854                 if (cf)
2855                     cf(chan, data);
2856             } else {
2857                 if (nc)
2858                     nc(target_list, data);
2859             }
2860         } else {
2861             struct userNode *user;
2862             struct privmsg_desc *pd = data;
2863
2864             pd->is_qualified = 0;
2865             if (*target_list == '@') {
2866                 user = NULL;
2867             } else if (strchr(target_list, '@')) {
2868                 struct server *server;
2869
2870                 pd->is_qualified = 1;
2871                 user = GetUserH(strtok(target_list, "@"));
2872                 server = GetServerH(strtok(NULL, "@"));
2873
2874                 if (user && (user->uplink != server)) {
2875                     /* Don't attempt to index into any arrays
2876                        using a user's numeric on another server. */
2877                     user = NULL;
2878                 }
2879             } else {
2880                 user = GetUserN(target_list);
2881             }
2882
2883             if (user) {
2884                 if (uf)
2885                     uf(user, data);
2886             } else {
2887                 if (nu)
2888                     nu(target_list, data);
2889             }
2890         }
2891         target_list = j+1;
2892     } while (old == ',');
2893 }
2894
2895 static int
2896 get_local_numeric(void)
2897 {
2898     static unsigned int next_numeric = 0;
2899     if (self->clients > self->num_mask)
2900         return -1;
2901     while (self->users[next_numeric])
2902         if (++next_numeric > self->num_mask)
2903             next_numeric = 0;
2904     return next_numeric;
2905 }
2906
2907 static void
2908 make_numeric(struct server *svr, int local_num, char *outbuf)
2909 {
2910     int slen, llen;
2911
2912     if (force_n2k || svr->numeric[1]) {
2913         slen = 2;
2914         llen = 3;
2915     } else {
2916         slen = 1;
2917         llen = (local_num < 64*64) ? 2 : 3;
2918     }
2919     strncpy(outbuf, svr->numeric, slen);
2920     inttobase64(outbuf+slen, local_num, llen);
2921     outbuf[slen+llen] = 0;
2922 }
2923
2924 struct server *
2925 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link_time, const char *numeric, const char *description)
2926 {
2927     struct server* sNode;
2928     int slen, mlen;
2929
2930     if ((sNode = GetServerN(numeric))) {
2931         /* This means we're trying to re-add an existant server.
2932          * To be safe, we should forget the previous incarnation.
2933          * (And all its linked servers.)
2934          *
2935          * It usually only happens in replays when the original
2936          * had a ping timeout and the replay didn't (because
2937          * replaying a ping timeout invariably gets things wrong).
2938          */
2939         DelServer(sNode, 0, NULL);
2940     }
2941
2942     switch (strlen(numeric)) {
2943     case 5: slen = 2; mlen = 3; break;
2944     case 4: slen = 1; mlen = 3; break;
2945     case 3: slen = 1; mlen = 2; break;
2946     default:
2947         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2948         return NULL;
2949     }
2950
2951     sNode = calloc(1, sizeof(*sNode));
2952     sNode->uplink = uplink;
2953     safestrncpy(sNode->name, name, sizeof(sNode->name));
2954     sNode->num_mask = base64toint(numeric+slen, mlen);
2955     sNode->hops = hops;
2956     sNode->boot = boot;
2957     sNode->link_time = link_time;
2958     strncpy(sNode->numeric, numeric, slen);
2959     safestrncpy(sNode->description, description, sizeof(sNode->description));
2960     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2961     serverList_init(&sNode->children);
2962     if (sNode->uplink) {
2963         /* uplink may be NULL if we're just building ourself */
2964         serverList_append(&sNode->uplink->children, sNode);
2965     }
2966     servers_num[base64toint(numeric, slen)] = sNode;
2967     dict_insert(servers, sNode->name, sNode);
2968     return sNode;
2969 }
2970
2971 void DelServer(struct server* serv, int announce, const char *message)
2972 {
2973     unsigned int i;
2974
2975     /* If we receive an ERROR command before the SERVER
2976      * command a NULL server can be passed */
2977     if (!serv)
2978         return;
2979
2980     /* Hrm, what's the right way to SQUIT some other server?
2981      * (This code is only to handle killing juped servers.) */
2982     if (announce && (serv->uplink == self) && (serv != self->uplink))
2983         irc_squit(serv, message, NULL);
2984
2985     /* must recursively remove servers linked to this one first */
2986     for (i=serv->children.used;i>0;)
2987         if (serv->children.list[--i] != self)
2988             DelServer(serv->children.list[i], false, NULL);
2989
2990     /* clean up server's user hash tables */
2991     for (i=0;i<=serv->num_mask;i++)
2992         if (serv->users[i])
2993             DelUser(serv->users[i], NULL, false, "server delinked");
2994
2995     /* delete server */
2996     if (serv->uplink)
2997         serverList_remove(&serv->uplink->children, serv);
2998     if (serv == self->uplink)
2999         self->uplink = NULL;
3000     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
3001     dict_remove(servers, serv->name);
3002     serverList_clean(&serv->children);
3003     free(serv->users);
3004     free(serv);
3005 }
3006
3007 struct userNode *
3008 AddLocalUser(const char *nick, const char *ident, const char *hostname, const char *desc, const char *modes)
3009 {
3010     char numeric[COMBO_NUMERIC_LEN+1];
3011     int local_num = get_local_numeric();
3012     time_t timestamp = now;
3013     struct userNode *old_user = GetUserH(nick);
3014
3015     if (!modes)
3016         modes = "+oik";
3017
3018     if (old_user) {
3019         if (IsLocal(old_user))
3020             return old_user;
3021         timestamp = old_user->timestamp - 1;
3022     }
3023     if (local_num == -1) {
3024         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
3025         return 0;
3026     }
3027     if (!hostname)
3028         hostname = self->name;
3029     make_numeric(self, local_num, numeric);
3030     return AddUser(self, nick, ident, hostname, modes, numeric, desc, now, "AAAAAA");
3031 }
3032
3033 struct userNode *
3034 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
3035 {
3036     char numeric[COMBO_NUMERIC_LEN+1];
3037     int local_num = get_local_numeric();
3038     time_t timestamp = now;
3039     struct userNode *old_user = GetUserH(nick);
3040
3041     if (old_user) {
3042         if (IsLocal(old_user))
3043             return old_user;
3044         timestamp = old_user->timestamp - 1;
3045     }
3046     if (local_num == -1) {
3047         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
3048         return 0;
3049     }
3050     make_numeric(self, local_num, numeric);
3051     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
3052 }
3053
3054 int
3055 is_valid_nick(const char *nick) {
3056     unsigned int ii;
3057     /* IRC has some of The Most Fucked-Up ideas about character sets
3058      * in the world.. */
3059     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
3060         return 0;
3061     for (ii = 0; nick[ii]; ++ii)
3062         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
3063             return 0;
3064     if (strlen(nick) > nicklen)
3065         return 0;
3066     return 1;
3067 }
3068
3069 static struct userNode*
3070 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)
3071 {
3072     struct userNode *oldUser, *uNode;
3073     unsigned int ignore_user, dummy;
3074     char *tstr;
3075     int type;
3076
3077     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
3078         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", (void*)uplink, nick, numeric);
3079         return NULL;
3080     }
3081
3082     if (!uplink) {
3083         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", (void*)uplink, nick, numeric);
3084         return NULL;
3085     }
3086
3087     if (uplink != GetServerN(numeric)) {
3088         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", (void*)uplink, nick, numeric, uplink->name);
3089         return NULL;
3090     }
3091
3092     dummy = modes && modes[0] == '*';
3093     if (dummy) {
3094         ++modes;
3095     } else if (!is_valid_nick(nick)) {
3096         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", (void*)uplink, nick);
3097         return NULL;
3098     }
3099
3100     ignore_user = 0;
3101     if ((oldUser = GetUserH(nick))) {
3102         if (IsLocal(oldUser)
3103             && (IsService(oldUser) || IsPersistent(oldUser))) {
3104             /* The service should collide the new user off - but not
3105              * if the new user is coming in during a burst.  (During a
3106              * burst, the bursting server will kill either our user --
3107              * triggering a ReintroduceUser() -- or its own.)
3108              */
3109             oldUser->timestamp = timestamp - 1;
3110             ignore_user = 1;
3111             if (!uplink->burst)
3112                 irc_user(oldUser);
3113         } else if (oldUser->timestamp > timestamp) {
3114             /* "Old" user is really newer; remove them */
3115             DelUser(oldUser, 0, 1, "Overruled by older nick");
3116         } else {
3117             /* User being added is too new; do not add them to
3118              * clients, but do add them to the server's list, since it
3119              * will send a KILL and QUIT soon. */
3120             ignore_user = 1;
3121         }
3122     }
3123
3124     /* create new usernode and set all values */
3125     uNode = calloc(1, sizeof(*uNode));
3126     uNode->nick = strdup(nick);
3127     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
3128     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
3129     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
3130     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
3131     irc_p10_pton(&uNode->ip, realip);
3132
3133     tstr = conf_get_data("server/type", RECDB_QSTRING);
3134     type = atoi(tstr);
3135     if (type == 7) {
3136       if (irc_in_addr_is_ipv4(uNode->ip)) {
3137         make_virtip((char*)irc_ntoa(&uNode->ip), (char*)irc_ntoa(&uNode->ip), uNode->cryptip);
3138         make_virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3139       } else if (irc_in_addr_is_ipv6(uNode->ip)) {
3140         make_ipv6virthost((char*)irc_ntoa(&uNode->ip), uNode->hostname, uNode->crypthost);
3141       }
3142     }
3143
3144     if (!uNode->crypthost && uNode->cryptip)
3145         snprintf(uNode->crypthost, sizeof(uNode->crypthost), "%s", strdup(uNode->cryptip));
3146     uNode->idle_since = timestamp;
3147     uNode->timestamp = timestamp;
3148     modeList_init(&uNode->channels);
3149     uNode->uplink = uplink;
3150     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
3151         uNode->uplink->max_clients = uNode->uplink->clients;
3152     }
3153     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
3154     uNode->uplink->users[uNode->num_local] = uNode;
3155     mod_usermode(uNode, modes);
3156     if (dummy)
3157         uNode->modes |= FLAGS_DUMMY;
3158
3159     set_geoip_info(uNode);
3160
3161     if (ignore_user)
3162         return uNode;
3163
3164     dict_insert(clients, uNode->nick, uNode);
3165     if (dict_size(clients) > max_clients) {
3166         max_clients = dict_size(clients);
3167         max_clients_time = now;
3168     }
3169     if (IsLocal(uNode))
3170         irc_user(uNode);
3171     call_new_user_funcs(uNode);
3172
3173     if ((uNode->loc == 1) && (uNode->handle_info))
3174         send_func_list(uNode);
3175
3176     return uNode;
3177 }
3178
3179 /* removes user from it's server's hash table and nick hash table */
3180 void
3181 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
3182 {
3183
3184     verify(user);
3185
3186     /* mark them as dead, in case anybody cares */
3187     user->dead = 1;
3188
3189     /* remove pending adduser commands */
3190     wipe_adduser_pending(NULL, user);
3191
3192     /* remove user from all channels */
3193     while (user->channels.used > 0)
3194         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, NULL, 0);
3195
3196     /* Call these in reverse order so ChanServ can update presence
3197        information before NickServ nukes the handle_info. */
3198     call_del_user_funcs(user, killer, why);
3199
3200     user->uplink->clients--;
3201     user->uplink->users[user->num_local] = NULL;
3202     if (IsOper(user))
3203         userList_remove(&curr_opers, user);
3204     /* remove from global dictionary, but not if after a collide */
3205     if (user == dict_find(clients, user->nick, NULL))
3206         dict_remove(clients, user->nick);
3207
3208     if (IsInvisible(user))
3209         invis_clients--;
3210
3211     if (announce) {
3212         if (IsLocal(user))
3213             irc_quit(user, why);
3214         else
3215             irc_kill(killer, user, why);
3216     }
3217
3218     if (IsLocal(user)) {
3219         unsigned int num = user->num_local;
3220         if (num < num_privmsg_funcs)
3221             privmsg_funcs[num] = NULL;
3222         if (num < num_notice_funcs)
3223             notice_funcs[num] = NULL;
3224     }
3225
3226     modeList_clean(&user->channels);
3227
3228     /* Clean up version data */
3229     if(user->version_reply) {
3230         free(user->version_reply);
3231         user->version_reply = NULL;
3232     }
3233
3234     /* Clean up SSL fingerprint data */
3235     if(user->sslfp) {
3236         free(user->sslfp);
3237         user->sslfp = NULL;
3238     }
3239
3240     /* clean up mark */
3241     if(user->mark) {
3242         free(user->mark);
3243         user->mark = NULL;
3244     }
3245
3246     /* clean up geoip data if any */
3247     if(user->country_code) free(user->country_code);
3248     if(user->city) free(user->city);
3249     if(user->region) free(user->region);
3250     if(user->postal_code) free(user->postal_code);
3251
3252     /* We don't free them, in case we try to privmsg them or something
3253      * (like when a stupid oper kills themself).  We just put them onto
3254      * a list of clients that get freed after processing each line.
3255      */
3256     if (dead_users.size)
3257         userList_append(&dead_users, user);
3258     else
3259         free_user(user);
3260 }
3261
3262 static void call_oper_funcs(struct userNode *user);
3263
3264 void mod_usermode(struct userNode *user, const char *mode_change) {
3265     int add = 1;
3266     const char *word = mode_change;
3267
3268     if (!user || !mode_change)
3269         return;
3270
3271     call_user_mode_funcs(user, mode_change);
3272
3273     while (*word != ' ' && *word) word++;
3274     while (*word == ' ') word++;
3275     while (1) {
3276 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
3277         switch (*mode_change++) {
3278         case 0: case ' ': return;
3279         case '+': add = 1; break;
3280         case '-': add = 0; break;
3281         case 'o':
3282             do_user_mode(FLAGS_OPER);
3283             if (!add) {
3284                 userList_remove(&curr_opers, user);
3285             } else if (!userList_contains(&curr_opers, user)) {
3286                 userList_append(&curr_opers, user);
3287                 call_oper_funcs(user);
3288             }
3289             break;
3290         case 'O': do_user_mode(FLAGS_LOCOP); break;
3291         case 'i': do_user_mode(FLAGS_INVISIBLE);
3292             if (add)
3293                 invis_clients++;
3294             else
3295                 invis_clients--;
3296             break;
3297         case 'w': do_user_mode(FLAGS_WALLOP); break;
3298         case 'd': do_user_mode(FLAGS_DEAF); break;
3299         case 'k': do_user_mode(FLAGS_SERVICE); break;
3300         case 'g': do_user_mode(FLAGS_GLOBAL); break;
3301         case 'B': do_user_mode(FLAGS_BOT); break;
3302         case 'n': do_user_mode(FLAGS_HIDECHANS); break;
3303         case 'I': do_user_mode(FLAGS_HIDEIDLE); break;
3304         case 'X': do_user_mode(FLAGS_XTRAOP); break;
3305         case 'C': do_user_mode(FLAGS_CLOAKHOST);
3306             if (*word) {
3307                 char cloakhost[MAXLEN];
3308                 unsigned int ii;
3309                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3310                     cloakhost[ii++] = *word++;
3311                 cloakhost[ii] = 0;
3312                 while (*word == ' ')
3313                     word++;
3314                 safestrncpy(user->crypthost, cloakhost, sizeof(user->crypthost));
3315             }
3316             break;
3317         case 'c': do_user_mode(FLAGS_CLOAKIP);
3318             if (*word) {
3319                 char cloakip[MAXLEN];
3320                 unsigned int ii;
3321                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3322                     cloakip[ii++] = *word++;
3323                 cloakip[ii] = 0;
3324                 while (*word == ' ')
3325                     word++;
3326                 safestrncpy(user->cryptip, cloakip, sizeof(user->cryptip));
3327             }
3328             break;
3329         // sethost - reed/apples
3330         // case 'h': do_user_mode(FLAGS_HELPER); break;
3331         // I check if there's an 'h' in the first part, and if there,
3332         // then everything after the space becomes their new host.
3333         case 'h': do_user_mode(FLAGS_SETHOST);
3334             if (*word) {
3335                 char sethost[MAXLEN];
3336                 unsigned int ii;
3337                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3338                     sethost[ii++] = *word++;
3339                 sethost[ii] = 0;
3340                 while (*word == ' ')
3341                     word++;
3342                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
3343             }
3344             break;
3345         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
3346         case 'r':
3347             if (*word) {
3348                 char tag[MAXLEN];
3349                 unsigned int ii;
3350                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3351                     tag[ii++] = *word++;
3352                 tag[ii] = 0;
3353                 while (*word == ' ')
3354                     word++;
3355                 call_account_func(user, tag);
3356             }
3357             break;
3358         case 'f':
3359             if (*word) {
3360                 char host[MAXLEN];
3361                 unsigned int ii;
3362                 for (ii=0; (*word != ' ') && (*word != '\0'); )
3363                     host[ii++] = *word++;
3364                 host[ii] = 0;
3365                 while (*word == ' ')
3366                     word++;
3367                 assign_fakehost(user, host, 0);
3368             }
3369             break;
3370         case 'a': do_user_mode(FLAGS_ADMIN); break;
3371         case 'z': do_user_mode(FLAGS_SSL); break;
3372         case 'D': do_user_mode(FLAGS_PRIVDEAF); break;
3373         case 'R': do_user_mode(FLAGS_ACCOUNTONLY); break;
3374         case 'W': do_user_mode(FLAGS_WHOIS); break;
3375         case 'H': do_user_mode(FLAGS_HIDEOPER); break;
3376         case 'L': do_user_mode(FLAGS_NOLINK); break;
3377         case 'q': do_user_mode(FLAGS_COMMONCHANSONLY); break;
3378         }
3379 #undef do_user_mode
3380     }
3381 }
3382
3383 static int
3384 keyncpy(char output[], char input[], size_t output_size)
3385 {
3386     size_t ii;
3387
3388     if (input[0] == ':')
3389     {
3390         output[0] = '\0';
3391         return 1;
3392     }
3393
3394     for (ii = 0; (ii + 1 < output_size) && (input[ii] != '\0'); ++ii)
3395     {
3396         output[ii] = input[ii];
3397     }
3398
3399     output[ii] = '\0';
3400     return 0;
3401 }
3402
3403 struct mod_chanmode *
3404 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
3405 {
3406     struct mod_chanmode *change;
3407     unsigned int ii, in_arg, ch_arg, add;
3408
3409     if (argc == 0)
3410         return NULL;
3411     if (!(change = mod_chanmode_alloc(argc - 1)))
3412         return NULL;
3413
3414     for (ii = ch_arg = 0, in_arg = add = 1;
3415          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
3416          ++ii) {
3417         switch (modes[0][ii]) {
3418         case '+':
3419             add = 1;
3420             break;
3421         case '-':
3422             add = 0;
3423             break;
3424 #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)
3425         case 'C': do_chan_mode(MODE_NOCTCPS); break;
3426         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
3427         case 'c': do_chan_mode(MODE_NOCOLORS); break;
3428         case 'i': do_chan_mode(MODE_INVITEONLY); break;
3429         case 'm': do_chan_mode(MODE_MODERATED); break;
3430         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
3431         case 'p': do_chan_mode(MODE_PRIVATE); break;
3432         case 'r': do_chan_mode(MODE_REGONLY); break;
3433         case 's': do_chan_mode(MODE_SECRET); break;
3434         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
3435         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
3436         case 'M': do_chan_mode(MODE_MODUNREG); break;
3437         case 'N': do_chan_mode(MODE_NONOTICE); break;
3438         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
3439         case 'T': do_chan_mode(MODE_NOAMSG); break;
3440         case 'O': do_chan_mode(MODE_OPERSONLY); break;
3441         case 'a': do_chan_mode(MODE_ADMINSONLY); break;
3442         case 'Z': do_chan_mode(MODE_SSLONLY); break;
3443         case 'L': do_chan_mode(MODE_HIDEMODE); break;
3444         case 'z':
3445           if (!(flags & MCP_REGISTERED)) {
3446               do_chan_mode(MODE_REGISTERED);
3447           } else {
3448               mod_chanmode_free(change);
3449               return NULL;
3450           }
3451           break;
3452 #undef do_chan_mode
3453         case 'l':
3454             if (add) {
3455                 if (in_arg >= argc)
3456                     goto error;
3457                 change->modes_set |= MODE_LIMIT;
3458                 change->new_limit = atoi(modes[in_arg++]);
3459             } else {
3460                 change->modes_set &= ~MODE_LIMIT;
3461                 change->modes_clear |= MODE_LIMIT;
3462             }
3463             break;
3464         case 'k':
3465             if (add) {
3466                 if ((in_arg >= argc)
3467                     || keyncpy(change->new_key, modes[in_arg++], sizeof(change->new_key)))
3468                     goto error;
3469                 change->modes_set |= MODE_KEY;
3470             } else {
3471                 change->modes_clear |= MODE_KEY;
3472                 if (!(flags & MCP_KEY_FREE)) {
3473                     if (in_arg >= argc)
3474                         goto error;
3475                     in_arg++;
3476                 }
3477             }
3478             break;
3479         case 'U':
3480             if (add)
3481             {
3482                 if ((in_arg >= argc)
3483                     || keyncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass)))
3484                     goto error;
3485                 change->modes_set |= MODE_UPASS;
3486             } else {
3487                 change->modes_clear |= MODE_UPASS;
3488                 if (!(flags & MCP_UPASS_FREE)) {
3489                     if (in_arg >= argc)
3490                         goto error;
3491                     in_arg++;
3492                 }
3493             }
3494             break;
3495         case 'A':
3496             if (add) {
3497                 if ((in_arg >= argc)
3498                     || keyncpy(change->new_apass, modes[in_arg++], sizeof(change->new_apass)))
3499                     goto error;
3500                 change->modes_set |= MODE_APASS;
3501             } else {
3502                 change->modes_clear |= MODE_APASS;
3503                 if (!(flags & MCP_APASS_FREE)) {
3504                     if (in_arg >= argc)
3505                       goto error;
3506                     in_arg++;
3507                 }
3508             }
3509             break;
3510         case 'b':
3511             if (!(flags & MCP_ALLOW_OVB))
3512                 goto error;
3513             if (in_arg >= argc)
3514                 goto error;
3515             change->args[ch_arg].mode = MODE_BAN;
3516             if (!add)
3517                 change->args[ch_arg].mode |= MODE_REMOVE;
3518             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3519             break;
3520         case 'e':
3521             if (!(flags & MCP_ALLOW_OVB))
3522                 goto error;
3523             if (in_arg >= argc)
3524                 goto error;
3525             change->args[ch_arg].mode = MODE_EXEMPT;
3526             if (!add)
3527                 change->args[ch_arg].mode |= MODE_REMOVE;
3528             change->args[ch_arg++].u.hostmask = modes[in_arg++];
3529             break;
3530         case 'o': case 'h': case 'v':
3531         {
3532             struct userNode *victim;
3533             char *oplevel_str;
3534             int oplevel;
3535
3536             if (in_arg >= argc)
3537                 goto error;
3538             oplevel_str = strchr(modes[in_arg], ':');
3539             if (oplevel_str)
3540             {
3541                 /* XXYYY M #channel +o XXYYY:<oplevel> */
3542                 *oplevel_str++ = '\0';
3543                 oplevel = parse_oplevel(oplevel_str);
3544                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
3545                     oplevel = base_oplevel + 1;
3546             }
3547             else if (channel->modes & MODE_UPASS)
3548                 oplevel = base_oplevel + 1;
3549             else
3550                 oplevel = -1;
3551
3552             /* Check that oplevel is within bounds. */
3553             if (oplevel > MAXOPLEVEL)
3554                 oplevel = MAXOPLEVEL;
3555
3556             if (!(flags & MCP_ALLOW_OVB))
3557                 goto error;
3558             if (in_arg >= argc)
3559                 goto error;
3560
3561             if (modes[0][ii] == 'o')
3562                 change->args[ch_arg].mode = MODE_CHANOP;
3563             else if (modes[0][ii] == 'h')
3564                 change->args[ch_arg].mode = MODE_HALFOP;
3565             else if (modes[0][ii] == 'v')
3566                 change->args[ch_arg].mode = MODE_VOICE;
3567
3568             if (!add)
3569                 change->args[ch_arg].mode |= MODE_REMOVE;
3570             if (flags & MCP_FROM_SERVER)
3571                 victim = GetUserN(modes[in_arg++]);
3572             else
3573                 victim = GetUserH(modes[in_arg++]);
3574             if (!victim)
3575                 continue;
3576             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
3577             {
3578                 /* Apply the oplevel change */
3579                 change->args[ch_arg].u.member->oplevel = oplevel;
3580                 ch_arg++;
3581             }
3582             break;
3583         }
3584         default:
3585             if (!(flags & MCP_FROM_SERVER))
3586                 goto error;
3587             break;
3588         }
3589     }
3590     change->argc = ch_arg; /* in case any turned out to be ignored */
3591     if (change->modes_set & MODE_SECRET) {
3592         change->modes_set &= ~(MODE_PRIVATE);
3593         change->modes_clear |= MODE_PRIVATE;
3594     } else if (change->modes_set & MODE_PRIVATE) {
3595         change->modes_set &= ~(MODE_SECRET);
3596         change->modes_clear |= MODE_SECRET;
3597     }
3598     return change;
3599   error:
3600     mod_chanmode_free(change);
3601     return NULL;
3602 }
3603
3604 struct chanmode_buffer {
3605     char modes[MAXLEN];
3606     char args[MAXLEN];
3607     struct chanNode *channel;
3608     struct userNode *actor;
3609     unsigned int modes_used;
3610     unsigned int args_used;
3611     size_t chname_len;
3612     unsigned int is_add : 1;
3613     unsigned int is_chanop : 1;
3614 };
3615
3616 static void
3617 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
3618 {
3619     size_t arg_len = strlen(arg);
3620     if (buf->modes_used > (MAXMODEPARAMS) ||
3621         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
3622         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
3623         buf->modes[buf->modes_used + buf->args_used] = '\0';
3624         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
3625         buf->modes[0] = buf->is_add ? '+' : '-';
3626         buf->modes_used = 1;
3627         buf->args_used = 0;
3628     }
3629     buf->modes[buf->modes_used++] = ch;
3630     buf->args[buf->args_used++] = ' ';
3631     memcpy(buf->args + buf->args_used, arg, arg_len);
3632     buf->args_used += arg_len;
3633 }
3634
3635 void
3636 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
3637 {
3638     struct chanmode_buffer chbuf;
3639     unsigned int arg;
3640     struct modeNode *mn;
3641     char int_buff[32], mode = '\0';
3642
3643     assert(change->argc <= change->alloc_argc);
3644     memset(&chbuf, 0, sizeof(chbuf));
3645     chbuf.channel = channel;
3646     chbuf.actor = who;
3647     chbuf.chname_len = strlen(channel->name);
3648
3649     mn = GetUserMode(channel, who);
3650     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
3651         chbuf.is_chanop = 1;
3652
3653     /* First remove modes */
3654     chbuf.is_add = 0;
3655     if (change->modes_clear) {
3656         if (mode != '-')
3657             chbuf.modes[chbuf.modes_used++] = mode = '-';
3658 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3659         DO_MODE_CHAR(PRIVATE, 'p');
3660         DO_MODE_CHAR(SECRET, 's');
3661         DO_MODE_CHAR(MODERATED, 'm');
3662         DO_MODE_CHAR(TOPICLIMIT, 't');
3663         DO_MODE_CHAR(INVITEONLY, 'i');
3664         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3665         DO_MODE_CHAR(LIMIT, 'l');
3666         DO_MODE_CHAR(DELAYJOINS, 'D');
3667         DO_MODE_CHAR(REGONLY, 'r');
3668         DO_MODE_CHAR(NOCOLORS, 'c');
3669         DO_MODE_CHAR(NOCTCPS, 'C');
3670         DO_MODE_CHAR(STRIPCOLOR, 'S');
3671         DO_MODE_CHAR(MODUNREG, 'M');
3672         DO_MODE_CHAR(NONOTICE, 'N');
3673         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3674         DO_MODE_CHAR(NOAMSG, 'T');
3675         DO_MODE_CHAR(OPERSONLY, 'O');
3676         DO_MODE_CHAR(ADMINSONLY, 'a');
3677         DO_MODE_CHAR(REGISTERED, 'z');
3678         DO_MODE_CHAR(SSLONLY, 'Z');
3679         DO_MODE_CHAR(HIDEMODE, 'L');
3680 #undef DO_MODE_CHAR
3681         if (change->modes_clear & channel->modes & MODE_KEY)
3682             mod_chanmode_append(&chbuf, 'k', channel->key);
3683         if (change->modes_clear & channel->modes & MODE_UPASS)
3684             mod_chanmode_append(&chbuf, 'U', channel->upass);
3685         if (change->modes_clear & channel->modes & MODE_APASS)
3686             mod_chanmode_append(&chbuf, 'A', channel->apass);
3687     }
3688     for (arg = 0; arg < change->argc; ++arg) {
3689         if (!(change->args[arg].mode & MODE_REMOVE))
3690             continue;
3691         if (mode != '-')
3692             chbuf.modes[chbuf.modes_used++] = mode = '-';
3693         switch (change->args[arg].mode & ~MODE_REMOVE) {
3694         case MODE_BAN:
3695             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3696             break;
3697         case MODE_EXEMPT:
3698             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3699             break;
3700         default:
3701             if (change->args[arg].mode & MODE_CHANOP)
3702                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3703             if (change->args[arg].mode & MODE_HALFOP)
3704                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3705             if (change->args[arg].mode & MODE_VOICE)
3706                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3707             break;
3708         }
3709     }
3710
3711     /* Then set them */
3712     chbuf.is_add = 1;
3713     if (change->modes_set) {
3714         if (mode != '+')
3715             chbuf.modes[chbuf.modes_used++] = mode = '+';
3716 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
3717         DO_MODE_CHAR(PRIVATE, 'p');
3718         DO_MODE_CHAR(SECRET, 's');
3719         DO_MODE_CHAR(MODERATED, 'm');
3720         DO_MODE_CHAR(TOPICLIMIT, 't');
3721         DO_MODE_CHAR(INVITEONLY, 'i');
3722         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3723         DO_MODE_CHAR(DELAYJOINS, 'D');
3724         DO_MODE_CHAR(REGONLY, 'r');
3725         DO_MODE_CHAR(NOCOLORS, 'c');
3726         DO_MODE_CHAR(NOCTCPS, 'C');
3727         DO_MODE_CHAR(STRIPCOLOR, 'S');
3728         DO_MODE_CHAR(MODUNREG, 'M');
3729         DO_MODE_CHAR(NONOTICE, 'N');
3730         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3731         DO_MODE_CHAR(NOAMSG, 'T');
3732         DO_MODE_CHAR(OPERSONLY, 'O');
3733         DO_MODE_CHAR(ADMINSONLY, 'a');
3734         DO_MODE_CHAR(REGISTERED, 'z');
3735         DO_MODE_CHAR(SSLONLY, 'Z');
3736         DO_MODE_CHAR(HIDEMODE, 'L');
3737 #undef DO_MODE_CHAR
3738         if(change->modes_set & MODE_KEY)
3739             mod_chanmode_append(&chbuf, 'k', change->new_key);
3740         if (change->modes_set & MODE_UPASS)
3741             mod_chanmode_append(&chbuf, 'U', change->new_upass);
3742         if (change->modes_set & MODE_APASS)
3743             mod_chanmode_append(&chbuf, 'A', change->new_apass);
3744         if(change->modes_set & MODE_LIMIT) {
3745             sprintf(int_buff, "%d", change->new_limit);
3746             mod_chanmode_append(&chbuf, 'l', int_buff);
3747         }
3748     }
3749     for (arg = 0; arg < change->argc; ++arg) {
3750         if (change->args[arg].mode & MODE_REMOVE)
3751             continue;
3752         if (mode != '+')
3753             chbuf.modes[chbuf.modes_used++] = mode = '+';
3754         switch (change->args[arg].mode) {
3755         case MODE_BAN:
3756             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
3757             break;
3758         case MODE_EXEMPT:
3759             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
3760             break;
3761         default:
3762             if (change->args[arg].mode & MODE_CHANOP)
3763                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
3764             if (change->args[arg].mode & MODE_HALFOP)
3765                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
3766             if (change->args[arg].mode & MODE_VOICE)
3767                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
3768             break;
3769         }
3770     }
3771
3772     /* Flush the buffer and apply changes locally */
3773     if (chbuf.modes_used > 0) {
3774         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
3775         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
3776         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
3777     }
3778     mod_chanmode_apply(who, channel, change);
3779 }
3780
3781 char *
3782 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
3783 {
3784     unsigned int used = 0;
3785     assert(change->argc <= change->alloc_argc);
3786     if (change->modes_clear) {
3787         outbuff[used++] = '-';
3788 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
3789         DO_MODE_CHAR(PRIVATE, 'p');
3790         DO_MODE_CHAR(SECRET, 's');
3791         DO_MODE_CHAR(MODERATED, 'm');
3792         DO_MODE_CHAR(TOPICLIMIT, 't');
3793         DO_MODE_CHAR(INVITEONLY, 'i');
3794         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3795         DO_MODE_CHAR(LIMIT, 'l');
3796         DO_MODE_CHAR(KEY, 'k');
3797         DO_MODE_CHAR(UPASS, 'U');
3798         DO_MODE_CHAR(APASS, 'A');
3799         DO_MODE_CHAR(DELAYJOINS, 'D');
3800         DO_MODE_CHAR(REGONLY, 'r');
3801         DO_MODE_CHAR(NOCOLORS, 'c');
3802         DO_MODE_CHAR(NOCTCPS, 'C');
3803         DO_MODE_CHAR(STRIPCOLOR, 'S');
3804         DO_MODE_CHAR(MODUNREG, 'M');
3805         DO_MODE_CHAR(NONOTICE, 'N');
3806         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3807         DO_MODE_CHAR(NOAMSG, 'T');
3808         DO_MODE_CHAR(OPERSONLY, 'O');
3809         DO_MODE_CHAR(ADMINSONLY, 'a');
3810         DO_MODE_CHAR(REGISTERED, 'z');
3811         DO_MODE_CHAR(SSLONLY, 'Z');
3812         DO_MODE_CHAR(HIDEMODE, 'L');
3813 #undef DO_MODE_CHAR
3814     }
3815     if (change->modes_set) {
3816         outbuff[used++] = '+';
3817 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
3818         DO_MODE_CHAR(PRIVATE, 'p');
3819         DO_MODE_CHAR(SECRET, 's');
3820         DO_MODE_CHAR(MODERATED, 'm');
3821         DO_MODE_CHAR(TOPICLIMIT, 't');
3822         DO_MODE_CHAR(INVITEONLY, 'i');
3823         DO_MODE_CHAR(NOPRIVMSGS, 'n');
3824         DO_MODE_CHAR(DELAYJOINS, 'D');
3825         DO_MODE_CHAR(REGONLY, 'r');
3826         DO_MODE_CHAR(NOCOLORS, 'c');
3827         DO_MODE_CHAR(NOCTCPS, 'C');
3828         DO_MODE_CHAR(STRIPCOLOR, 'S');
3829         DO_MODE_CHAR(MODUNREG, 'M');
3830         DO_MODE_CHAR(NONOTICE, 'N');
3831         DO_MODE_CHAR(NOQUITMSGS, 'Q');
3832         DO_MODE_CHAR(NOAMSG, 'T');
3833         DO_MODE_CHAR(OPERSONLY, 'O');
3834         DO_MODE_CHAR(ADMINSONLY, 'a');
3835         DO_MODE_CHAR(REGISTERED, 'z');
3836         DO_MODE_CHAR(SSLONLY, 'Z');
3837         DO_MODE_CHAR(HIDEMODE, 'L');
3838
3839         DO_MODE_CHAR(KEY, 'k');
3840         DO_MODE_CHAR(LIMIT, 'l');
3841         DO_MODE_CHAR(APASS, 'A');
3842         DO_MODE_CHAR(UPASS, 'U');
3843 #undef DO_MODE_CHAR
3844
3845 #define DO_MODE_PARM(BIT, PARM) if (change->modes_set & MODE_##BIT) used += sprintf(outbuff+used, " %s", PARM);
3846         DO_MODE_PARM(KEY, change->new_key);
3847         if (change->modes_set & MODE_LIMIT) used += sprintf(outbuff+used, " %d", change->new_limit);
3848         DO_MODE_PARM(APASS, change->new_apass);
3849         DO_MODE_PARM(UPASS, change->new_upass);
3850 #undef DO_MODE_PARM
3851     }
3852     outbuff[used] = 0;
3853     return outbuff;
3854 }
3855
3856 static int
3857 clear_chanmode(struct chanNode *channel, const char *modes)
3858 {
3859     unsigned int cleared;
3860
3861     for (cleared = 0; *modes; modes++) {
3862         switch (*modes) {
3863         case 'o': cleared |= MODE_CHANOP; break;
3864         case 'h': cleared |= MODE_HALFOP; break;
3865         case 'v': cleared |= MODE_VOICE; break;
3866         case 'p': cleared |= MODE_PRIVATE; break;
3867         case 's': cleared |= MODE_SECRET; break;
3868         case 'm': cleared |= MODE_MODERATED; break;
3869         case 't': cleared |= MODE_TOPICLIMIT; break;
3870         case 'i': cleared |= MODE_INVITEONLY; break;
3871         case 'n': cleared |= MODE_NOPRIVMSGS; break;
3872         case 'k':
3873             cleared |= MODE_KEY;
3874             channel->key[0] = '\0';
3875             break;
3876         case 'A':
3877             cleared |= MODE_APASS;
3878             channel->apass[0] = '\0';
3879             break;
3880         case 'U':
3881             cleared |= MODE_UPASS;
3882             channel->upass[0] = '\0';
3883             break;
3884         case 'l':
3885             cleared |= MODE_LIMIT;
3886             channel->limit = 0;
3887             break;
3888         case 'b': cleared |= MODE_BAN; break;
3889         case 'e': cleared |= MODE_EXEMPT; break;
3890         case 'D': cleared |= MODE_DELAYJOINS; break;
3891         case 'r': cleared |= MODE_REGONLY; break;
3892         case 'c': cleared |= MODE_NOCOLORS; break;
3893         case 'C': cleared |= MODE_NOCTCPS; break;
3894         case 'S': cleared |= MODE_STRIPCOLOR; break;
3895         case 'M': cleared |= MODE_MODUNREG; break;
3896         case 'N': cleared |= MODE_NONOTICE; break;
3897         case 'Q': cleared |= MODE_NOQUITMSGS; break;
3898         case 'T': cleared |= MODE_NOAMSG; break;
3899         case 'O': cleared |= MODE_OPERSONLY; break;
3900         case 'a': cleared |= MODE_ADMINSONLY; break;
3901         case 'z': cleared |= MODE_REGISTERED; break;
3902         case 'Z': cleared |= MODE_SSLONLY; break;
3903         case 'L': cleared |= MODE_HIDEMODE; break;
3904         }
3905     }
3906
3907     if (!cleared)
3908         return 1;
3909
3910     /* Remove simple modes. */
3911     channel->modes &= ~cleared;
3912
3913     /* If removing bans, kill 'em all. */
3914     if ((cleared & MODE_BAN) && channel->banlist.used) {
3915         unsigned int i;
3916         for (i=0; i<channel->banlist.used; i++)
3917             free(channel->banlist.list[i]);
3918         channel->banlist.used = 0;
3919     }
3920
3921     /* If removing exempts, kill 'em all. */
3922     if ((cleared & MODE_EXEMPT) && channel->exemptlist.used) {
3923         unsigned int i;
3924         for (i=0; i<channel->exemptlist.used; i++)
3925             free(channel->exemptlist.list[i]);
3926         channel->exemptlist.used = 0;
3927     }
3928
3929     /* Removed member modes. */
3930     if ((cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
3931         int mask = ~(cleared & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
3932         unsigned int i;
3933
3934         for (i = 0; i < channel->members.used; i++)
3935             channel->members.list[i]->modes &= mask;
3936     }
3937
3938     return 1;
3939 }
3940
3941 void
3942 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3943 {
3944     unsigned int numeric = user->num_local;
3945     if (numeric >= num_privmsg_funcs) {
3946         int newnum = numeric + 8, ii;
3947         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3948         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3949             privmsg_funcs[ii] = NULL;
3950         num_privmsg_funcs = newnum;
3951     }
3952     if (privmsg_funcs[numeric])
3953         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3954     privmsg_funcs[numeric] = handler;
3955 }
3956
3957 void
3958 unreg_privmsg_func(struct userNode *user)
3959 {
3960     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3961         return; /* this really only works with users */
3962
3963     privmsg_funcs[user->num_local] = NULL;
3964 }
3965
3966
3967 void
3968 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3969 {
3970     unsigned int numeric = user->num_local;
3971     if (numeric >= num_notice_funcs) {
3972         int newnum = numeric + 8, ii;
3973         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3974         for (ii = num_privmsg_funcs; ii < newnum; ++ii)
3975             privmsg_funcs[ii] = NULL;
3976         num_notice_funcs = newnum;
3977     }
3978     if (notice_funcs[numeric])
3979         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3980     notice_funcs[numeric] = handler;
3981 }
3982
3983 void
3984 unreg_notice_func(struct userNode *user)
3985 {
3986     if (!IsLocal(user) || user->num_local >= num_privmsg_funcs)
3987         return; /* this really only works with users */
3988
3989     notice_funcs[user->num_local] = NULL;
3990 }
3991
3992 static void
3993 send_burst(void)
3994 {
3995     unsigned int i, hop, max_hop=1;
3996     dict_iterator_t it;
3997
3998     /* burst (juped) servers, closest first (except self, which is sent already) */
3999     for (i=0; i<ArrayLength(servers_num); i++)
4000         if (servers_num[i] && servers_num[i]->hops > max_hop)
4001             max_hop = servers_num[i]->hops;
4002     for (hop=1; hop<=max_hop; hop++) {
4003         for (i=0;i<ArrayLength(servers_num);i++) {
4004             if (servers_num[i]
4005                 && (servers_num[i]->hops == hop)
4006                 && (servers_num[i] != self->uplink))
4007                 irc_server(servers_num[i]);
4008         }
4009     }
4010
4011     /* burst local nicks */
4012     for (i=0; i<=self->num_mask; i++)
4013         if (self->users[i])
4014             irc_user(self->users[i]);
4015
4016     /* build dict of unbursted channel names (just copy existing channels) */
4017     unbursted_channels = dict_new();
4018     for (it = dict_first(channels); it; it = iter_next(it))
4019         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
4020 }
4021
4022 /*
4023  * Oplevel parsing
4024  */
4025 static int
4026 parse_oplevel(char *str)
4027 {
4028     int oplevel = 0;
4029     while (isdigit(*str))
4030         oplevel = oplevel * 10 + *str++ - '0';
4031     return oplevel;
4032 }
4033