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 2 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 "proto-common.c"
  24
  25 /* Full commands. */
  26 #define CMD_ACCOUNT             "ACCOUNT"
  27 #define CMD_ADMIN               "ADMIN"
  28 #define CMD_ASLL                "ASLL"
  29 #define CMD_AWAY                "AWAY"
  30 #define CMD_BURST               "BURST"
  31 #define CMD_CLEARMODE           "CLEARMODE"
  32 #define CMD_CLOSE               "CLOSE"
  33 #define CMD_CNOTICE             "CNOTICE"
  34 #define CMD_CONNECT             "CONNECT"
  35 #define CMD_CPRIVMSG            "CPRIVMSG"
  36 #define CMD_CREATE              "CREATE"
  37 #define CMD_DESTRUCT            "DESTRUCT"
  38 #define CMD_DESYNCH             "DESYNCH"
  39 #define CMD_DIE                 "DIE"
  40 #define CMD_DNS                 "DNS"
  41 #define CMD_EOB                 "END_OF_BURST"
  42 #define CMD_EOB_ACK             "EOB_ACK"
  43 #define CMD_ERROR               "ERROR"
  44 #define CMD_FAKEHOST            "FAKE"
  45 #define CMD_GET                 "GET"
  46 #define CMD_GLINE               "GLINE"
  47 #define CMD_HASH                "HASH"
  48 #define CMD_HELP                "HELP"
  49 #define CMD_INFO                "INFO"
  50 #define CMD_INVITE              "INVITE"
  51 #define CMD_ISON                "ISON"
  52 #define CMD_JOIN                "JOIN"
  53 #define CMD_JUPE                "JUPE"
  54 #define CMD_KICK                "KICK"
  55 #define CMD_KILL                "KILL"
  56 #define CMD_LINKS               "LINKS"
  57 #define CMD_LIST                "LIST"
  58 #define CMD_LUSERS              "LUSERS"
  59 #define CMD_MAP                 "MAP"
  60 #define CMD_MARK                "MARK"
  61 #define CMD_MODE                "MODE"
  62 #define CMD_MOTD                "MOTD"
  63 #define CMD_NAMES               "NAMES"
  64 #define CMD_NICK                "NICK"
  65 #define CMD_NOTICE              "NOTICE"
  66 #define CMD_OPER                "OPER"
  67 #define CMD_OPMODE              "OPMODE"
  68 #define CMD_PART                "PART"
  69 #define CMD_PASS                "PASS"
  70 #define CMD_PING                "PING"
  71 #define CMD_PONG                "PONG"
  72 #define CMD_POST                "POST"
  73 #define CMD_PRIVMSG             "PRIVMSG"
  74 #define CMD_PRIVS               "PRIVS"
  75 #define CMD_PROTO               "PROTO"
  76 #define CMD_QUIT                "QUIT"
  77 #define CMD_REHASH              "REHASH"
  78 #define CMD_RESET               "RESET"
  79 #define CMD_RESTART             "RESTART"
  80 #define CMD_RPING               "RPING"
  81 #define CMD_RPONG               "RPONG"
  82 #define CMD_SERVER              "SERVER"
  83 #define CMD_SERVLIST            "SERVLIST"
  84 #define CMD_SERVSET             "SERVSET"
  85 #define CMD_SET                 "SET"
  86 #define CMD_SETTIME             "SETTIME"
  87 #define CMD_SHUN                "SHUN"
  88 #define CMD_SILENCE             "SILENCE"
  89 #define CMD_SQUERY              "SQUERY"
  90 #define CMD_SQUIT               "SQUIT"
  91 #define CMD_STATS               "STATS"
  92 #define CMD_SVSNICK             "SVSNICK"
  93 #define CMD_TIME                "TIME"
  94 #define CMD_TOPIC               "TOPIC"
  95 #define CMD_TRACE               "TRACE"
  96 #define CMD_UPING               "UPING"
  97 #define CMD_USER                "USER"
  98 #define CMD_USERHOST            "USERHOST"
  99 #define CMD_USERIP              "USERIP"
 100 #define CMD_VERSION             "VERSION"
 101 #define CMD_WALLCHOPS           "WALLCHOPS"
 102 #define CMD_WALLOPS             "WALLOPS"
 103 #define CMD_WALLHOPS            "WALLHOPS"
 104 #define CMD_WALLUSERS           "WALLUSERS"
 105 #define CMD_WALLVOICES          "WALLVOICES"
 106 #define CMD_WALLHOPS            "WALLHOPS"
 107 #define CMD_WHO                 "WHO"
 108 #define CMD_WHOIS               "WHOIS"
 109 #define CMD_WHOWAS              "WHOWAS"
 110
 111 /* Tokenized commands. */
 112 #define TOK_ACCOUNT             "AC"
 113 #define TOK_ADMIN               "AD"
 114 #define TOK_ASLL                "LL"
 115 #define TOK_AWAY                "A"
 116 #define TOK_BURST               "B"
 117 #define TOK_CLEARMODE           "CM"
 118 #define TOK_CLOSE               "CLOSE"
 119 #define TOK_CNOTICE             "CN"
 120 #define TOK_CONNECT             "CO"
 121 #define TOK_CPRIVMSG            "CP"
 122 #define TOK_CREATE              "C"
 123 #define TOK_DESTRUCT            "DE"
 124 #define TOK_DESYNCH             "DS"
 125 #define TOK_DIE                 "DIE"
 126 #define TOK_DNS                 "DNS"
 127 #define TOK_EOB                 "EB"
 128 #define TOK_EOB_ACK             "EA"
 129 #define TOK_ERROR               "Y"
 130 #define TOK_EXEMPT              "EX"
 131 #define TOK_FAKEHOST            "FA"
 132 #define TOK_GET                 "GET"
 133 #define TOK_GLINE               "GL"
 134 #define TOK_HASH                "HASH"
 135 #define TOK_HELP                "HELP"
 136 #define TOK_INFO                "F"
 137 #define TOK_INVITE              "I"
 138 #define TOK_ISON                "ISON"
 139 #define TOK_JOIN                "J"
 140 #define TOK_JUPE                "JU"
 141 #define TOK_KICK                "K"
 142 #define TOK_KILL                "D"
 143 #define TOK_LINKS               "LI"
 144 #define TOK_LIST                "LIST"
 145 #define TOK_LUSERS              "LU"
 146 #define TOK_MAP                 "MAP"
 147 #define TOK_MARK                "MK"
 148 #define TOK_MODE                "M"
 149 #define TOK_MOTD                "MO"
 150 #define TOK_NAMES               "E"
 151 #define TOK_NICK                "N"
 152 #define TOK_NOTICE              "O"
 153 #define TOK_OPER                "OPER"
 154 #define TOK_OPMODE              "OM"
 155 #define TOK_PART                "L"
 156 #define TOK_PASS                "PA"
 157 #define TOK_PING                "G"
 158 #define TOK_PONG                "Z"
 159 #define TOK_POST                "POST"
 160 #define TOK_PRIVMSG             "P"
 161 #define TOK_PRIVS               "PRIVS"
 162 #define TOK_PROTO               "PROTO"
 163 #define TOK_QUIT                "Q"
 164 #define TOK_REHASH              "REHASH"
 165 #define TOK_RESET               "RESET"
 166 #define TOK_RESTART             "RESTART"
 167 #define TOK_RPING               "RI"
 168 #define TOK_RPONG               "RO"
 169 #define TOK_SERVER              "S"
 170 #define TOK_SERVLIST            "SERVSET"
 171 #define TOK_SERVSET             "SERVSET"
 172 #define TOK_SET                 "SET"
 173 #define TOK_SETTIME             "SE"
 174 #define TOK_SHUN                "SU"
 175 #define TOK_SILENCE             "U"
 176 #define TOK_SQUERY              "SQUERY"
 177 #define TOK_SQUIT               "SQ"
 178 #define TOK_STATS               "R"
 179 #define TOK_SVSNICK             "SN"
 180 #define TOK_TIME                "TI"
 181 #define TOK_TOPIC               "T"
 182 #define TOK_TRACE               "TR"
 183 #define TOK_UPING               "UP"
 184 #define TOK_USER                "USER"
 185 #define TOK_USERHOST            "USERHOST"
 186 #define TOK_USERIP              "USERIP"
 187 #define TOK_VERSION             "V"
 188 #define TOK_WALLCHOPS           "WC"
 189 #define TOK_WALLOPS             "WA"
 190 #define TOK_WALLHOPS            "WH"
 191 #define TOK_WALLUSERS           "WU"
 192 #define TOK_WALLVOICES          "WV"
 193 #define TOK_WALLHOPS            "WH"
 194 #define TOK_WHO                 "H"
 195 #define TOK_WHOIS               "W"
 196 #define TOK_WHOWAS              "X"
 197
 198 /* Protocol messages; aliased to full commands or tokens depending
 199    on compile-time configuration. ircu prefers tokens WITH THE
 200    EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
 201    tokenized, because clients' (ie. a linking server) commands are
 202    only checked against the full command list.
 203 */
 204 #if defined(ENABLE_TOKENS)
 205 #define TYPE(NAME)              TOK_ ## NAME
 206 #else /* !ENABLE_TOKENS */
 207 #define TYPE(NAME)              CMD_ ## NAME
 208 #endif /* ENABLE_TOKENS */
 209
 210 #define P10_ACCOUNT             TYPE(ACCOUNT)
 211 #define P10_ADMIN               TYPE(ADMIN)
 212 #define P10_ASLL                TYPE(ASLL)
 213 #define P10_AWAY                TYPE(AWAY)
 214 #define P10_BURST               TYPE(BURST)
 215 #define P10_CLEARMODE           TYPE(CLEARMODE)
 216 #define P10_CLOSE               TYPE(CLOSE)
 217 #define P10_CNOTICE             TYPE(CNOTICE)
 218 #define P10_CONNECT             TYPE(CONNECT)
 219 #define P10_CPRIVMSG            TYPE(CPRIVMSG)
 220 #define P10_CREATE              TYPE(CREATE)
 221 #define P10_DESTRUCT            TYPE(DESTRUCT)
 222 #define P10_DESYNCH             TYPE(DESYNCH)
 223 #define P10_DIE                 TYPE(DIE)
 224 #define P10_DNS                 TYPE(DNS)
 225 #define P10_EOB                 TYPE(EOB)
 226 #define P10_EOB_ACK             TYPE(EOB_ACK)
 227 #define P10_ERROR               TYPE(ERROR)
 228 #define P10_FAKEHOST            TYPE(FAKEHOST)
 229 #define P10_GET                 TYPE(GET)
 230 #define P10_GLINE               TYPE(GLINE)
 231 #define P10_HASH                TYPE(HASH)
 232 #define P10_HELP                TYPE(HELP)
 233 #define P10_INFO                TYPE(INFO)
 234 #define P10_INVITE              TYPE(INVITE)
 235 #define P10_ISON                TYPE(ISON)
 236 #define P10_JOIN                TYPE(JOIN)
 237 #define P10_JUPE                TYPE(JUPE)
 238 #define P10_KICK                TYPE(KICK)
 239 #define P10_KILL                TYPE(KILL)
 240 #define P10_LINKS               TYPE(LINKS)
 241 #define P10_LIST                TYPE(LIST)
 242 #define P10_LUSERS              TYPE(LUSERS)
 243 #define P10_MAP                 TYPE(MAP)
 244 #define P10_MARK                TYPE(MARK)
 245 #define P10_MODE                TYPE(MODE)
 246 #define P10_MOTD                TYPE(MOTD)
 247 #define P10_NAMES               TYPE(NAMES)
 248 #define P10_NICK                TYPE(NICK)
 249 #define P10_NOTICE              TYPE(NOTICE)
 250 #define P10_OPER                TYPE(OPER)
 251 #define P10_OPMODE              TYPE(OPMODE)
 252 #define P10_PART                TYPE(PART)
 253 #define P10_PASS                CMD_PASS
 254 #define P10_PING                TYPE(PING)
 255 #define P10_PONG                TYPE(PONG)
 256 #define P10_POST                TYPE(POST)
 257 #define P10_PRIVMSG             TYPE(PRIVMSG)
 258 #define P10_PRIVS               TYPE(PRIVS)
 259 #define P10_PROTO               TYPE(PROTO)
 260 #define P10_QUIT                TYPE(QUIT)
 261 #define P10_REHASH              TYPE(REHASH)
 262 #define P10_RESET               TYPE(RESET)
 263 #define P10_RESTART             TYPE(RESTART)
 264 #define P10_RPING               TYPE(RPING)
 265 #define P10_RPONG               TYPE(RPONG)
 266 #define P10_SERVER              CMD_SERVER
 267 #define P10_SERVLIST            TYPE(SERVLIST)
 268 #define P10_SERVSET             TYPE(SERVSET)
 269 #define P10_SET                 TYPE(SET)
 270 #define P10_SETTIME             TYPE(SETTIME)
 271 #define P10_SHUN                TYPE(SHUN)
 272 #define P10_SILENCE             TYPE(SILENCE)
 273 #define P10_SQUERY              TYPE(SQUERY)
 274 #define P10_SQUIT               TYPE(SQUIT)
 275 #define P10_STATS               TYPE(STATS)
 276 #define P10_SVSNICK             TYPE(SVSNICK)
 277 #define P10_TIME                TYPE(TIME)
 278 #define P10_TOPIC               TYPE(TOPIC)
 279 #define P10_TRACE               TYPE(TRACE)
 280 #define P10_UPING               TYPE(UPING)
 281 #define P10_USER                TYPE(USER)
 282 #define P10_USERHOST            TYPE(USERHOST)
 283 #define P10_USERIP              TYPE(USERIP)
 284 #define P10_VERSION             TYPE(VERSION)
 285 #define P10_WALLCHOPS           TYPE(WALLCHOPS)
 286 #define P10_WALLOPS             TYPE(WALLOPS)
 287 #define P10_WALLHOPS            TYPE(WALLHOPS)
 288 #define P10_WALLUSERS           TYPE(WALLUSERS)
 289 #define P10_WALLVOICES          TYPE(WALLVOICES)
 290 #define P10_WHO                 TYPE(WHO)
 291 #define P10_WHOIS               TYPE(WHOIS)
 292 #define P10_WHOWAS              TYPE(WHOWAS)
 293 #define P10_EXEMPT              TYPE(EXEMPT)
 294
 295 /* Servers claiming to have a boot or link time before PREHISTORY
 296  * trigger errors to the log.  We hope no server has been running
 297  * constantly since September 1994.  :)
 298  */
 299 #define PREHISTORY 780000000
 300
 301 static struct server *servers_num[64*64];
 302 static privmsg_func_t *privmsg_funcs;
 303 static unsigned int num_privmsg_funcs;
 304 static privmsg_func_t *notice_funcs;
 305 static unsigned int num_notice_funcs;
 306 static struct dict *unbursted_channels;
 307 static char *his_servername;
 308 static char *his_servercomment;
 309 static int extended_accounts;
 310
 311 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);
 312
 313 extern int off_channel;
 314
 315 static int parse_oplevel(char *str);
 316
 317 /* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
 318  * server and Y's indentifying the client on that server. */
 319 struct server*
 320 GetServerN(const char *numeric)
 321 {
 322     switch (strlen(numeric)) {
 323     default:
 324         return servers_num[base64toint(numeric, 2)];
 325     case 4:
 326     case 3:
 327     case 1:
 328         return servers_num[base64toint(numeric, 1)];
 329     case 0:
 330         return NULL;
 331     }
 332 }
 333
 334 struct userNode*
 335 GetUserN(const char *numeric) /* using numeric */
 336 {
 337     struct userNode *un;
 338     struct server *s;
 339     int n, slen, ulen;
 340
 341     switch (strlen(numeric)) {
 342     default:
 343         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
 344         return NULL;
 345     case 5: slen = 2; ulen = 3; break;
 346     case 4: slen = 1; ulen = 3; break;
 347     case 3: slen = 1; ulen = 2; break;
 348     case 2: case 1: case 0:
 349         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
 350         return NULL;
 351     }
 352     if (!(s = servers_num[base64toint(numeric, slen)])) {
 353         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
 354         return NULL;
 355     }
 356     n = base64toint(numeric+slen, ulen) & s->num_mask;
 357     if (!(un = s->users[n])) {
 358         log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
 359     }
 360     return un;
 361 }
 362
 363 static void
 364 privmsg_user_helper(struct userNode *un, void *data)
 365 {
 366     struct privmsg_desc *pd = data;
 367     unsigned int num = un->num_local;
 368     if (!pd->is_notice) {
 369         if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
 370             privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 371         }
 372     } else {
 373         if ((num < num_notice_funcs) && notice_funcs[num]) {
 374             notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
 375         }
 376     }
 377 }
 378
 379 void
 380 irc_server(struct server *srv)
 381 {
 382     char extranum[COMBO_NUMERIC_LEN+1];
 383
 384     inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
 385     if (srv == self) {
 386         putsock(P10_SERVER " %s %d %li %li J10 %s%s +s6 :%s",
 387                 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
 388     } else {
 389         putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s6 :%s",
 390                 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
 391     }
 392 }
 393
 394 static void
 395 irc_p10_pton(irc_in_addr_t *ip, const char *input)
 396 {
 397     if (strlen(input) == 6) {
 398         unsigned int value;
 399         memset(ip, 0, 6 * sizeof(ip->in6[0]));
 400         value = base64toint(input, 6);
 401         if (value)
 402             ip->in6[5] = htons(65535);
 403         ip->in6[6] = htons(value >> 16);
 404         ip->in6[7] = htons(value & 65535);
 405     } else {
 406         unsigned int pos = 0;
 407         do {
 408             if (*input == '_') {
 409                 unsigned int left;
 410                 for (left = (25 - strlen(input)) / 3; left; left--)
 411                     ip->in6[pos++] = 0;
 412                 input++;
 413             } else {
 414                 ip->in6[pos++] = ntohs(base64toint(input, 3));
 415                 input += 3;
 416             }
 417         } while (pos < 8);
 418     }
 419 }
 420
 421 static void
 422 irc_p10_ntop(char *output, const irc_in_addr_t *ip)
 423 {
 424     if (!irc_in_addr_is_valid(*ip)) {
 425         strcpy(output, "AAAAAA");
 426     } else if (irc_in_addr_is_ipv4(*ip)) {
 427         unsigned int in4;
 428         in4 = (ntohs(ip->in6[6]) << 16) | ntohs(ip->in6[7]);
 429         inttobase64(output, in4, 6);
 430         output[6] = '\0';
 431     } else if (irc_in_addr_is_ipv6(*ip)) {
 432         unsigned int max_start, max_zeros, curr_zeros, zero, ii;
 433         /* Can start by printing out the leading non-zero parts. */
 434         for (ii = 0; (ip->in6[ii]) && (ii < 8); ++ii) {
 435             inttobase64(output, ntohs(ip->in6[ii]), 3);
 436             output += 3;
 437         }
 438         /* Find the longest run of zeros. */
 439         for (max_start = zero = ii, max_zeros = curr_zeros = 0; ii < 8; ++ii) {
 440             if (!ip->in6[ii])
 441                 curr_zeros++;
 442             else if (curr_zeros > max_zeros) {
 443                 max_start = ii - curr_zeros;
 444                 max_zeros = curr_zeros;
 445                 curr_zeros = 0;
 446             }
 447         }
 448         if (curr_zeros > max_zeros) {
 449             max_start = ii - curr_zeros;
 450             max_zeros = curr_zeros;
 451             curr_zeros = 0;
 452         }
 453         /* Print the rest of the address */
 454         for (ii = zero; ii < 8; ) {
 455             if ((ii == max_start) && max_zeros) {
 456                 *output++ = '_';
 457                 ii += max_zeros;
 458             } else {
 459                 inttobase64(output, ntohs(ip->in6[ii]), 3);
 460                 output += 3;
 461             }
 462         }
 463         *output = '\0';
 464     } else {
 465         strcpy(output, "???");
 466     }
 467 }
 468
 469 void
 470 irc_user(struct userNode *user)
 471 {
 472     char b64ip[25];
 473     if (!user)
 474         return;
 475     irc_p10_ntop(b64ip, &user->ip);
 476     if (user->modes) {
 477         int modelen;
 478         char modes[32];
 479
 480         modelen = 0;
 481         if (IsOper(user))
 482             modes[modelen++] = 'o';
 483         if (IsInvisible(user))
 484             modes[modelen++] = 'i';
 485         if (IsWallOp(user))
 486             modes[modelen++] = 'w';
 487         if (IsService(user))
 488             modes[modelen++] = 'k';
 489         if (IsServNotice(user))
 490             modes[modelen++] = 's';
 491         if (IsDeaf(user))
 492             modes[modelen++] = 'd';
 493         if (IsGlobal(user))
 494             modes[modelen++] = 'g';
 495         // sethost - reed/apples
 496         // if (IsHelperIrcu(user))
 497         if (IsSetHost(user))
 498             modes[modelen++] = 'h';
 499         if (IsFakeHost(user))
 500             modes[modelen++] = 'f';
 501         if (IsHiddenHost(user))
 502             modes[modelen++] = 'x';
 503         modes[modelen] = 0;
 504
 505         /* we don't need to put the + in modes because it's in the format string. */
 506         putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
 507                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
 508     } else {
 509         putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
 510                 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
 511     }
 512 }
 513
 514 void
 515 irc_rename(struct userNode *user, const char *new_handle)
 516 {
 517     if(extended_accounts)
 518         putsock("%s " P10_ACCOUNT " %s M %s", self->numeric, user->numeric, new_handle);
 519 }
 520
 521 void
 522 irc_delete(struct userNode *user)
 523 {
 524     if(extended_accounts)
 525         putsock("%s " P10_ACCOUNT " %s U", self->numeric, user->numeric);
 526 }
 527
 528 void
 529 irc_account(struct userNode *user, const char *stamp, time_t timestamp)
 530 {
 531     if(extended_accounts)
 532         putsock("%s " P10_ACCOUNT " %s R %s %lu", self->numeric, user->numeric, stamp, timestamp);
 533     else
 534         putsock("%s " P10_ACCOUNT " %s %s %lu", self->numeric, user->numeric, stamp, timestamp);
 535 }
 536
 537 void
 538 irc_fakehost(struct userNode *user, const char *host)
 539 {
 540     putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
 541 }
 542
 543 void
 544 irc_regnick(UNUSED_ARG(struct userNode *user))
 545 {
 546     /* no operation here */
 547 }
 548
 549 void
 550 irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
 551 {
 552     putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
 553 }
 554
 555 void
 556 irc_fetchtopic(struct userNode *from, const char *to)
 557 {
 558     if (!from || !to)
 559         return;
 560     putsock("%s " P10_TOPIC " %s", from->numeric, to);
 561 }
 562
 563 void
 564 irc_squit(struct server *srv, const char *message, const char *service_message)
 565 {
 566     if (!service_message)
 567         service_message = message;
 568
 569     /* Are we leaving the network? */
 570     if (srv == self && cManager.uplink->state == CONNECTED) {
 571         unsigned int i;
 572
 573         /* Quit all clients linked to me. */
 574         for (i = 0; i <= self->num_mask; i++) {
 575             if (!self->users[i])
 576                 continue;
 577             irc_quit(self->users[i], service_message);
 578         }
 579     }
 580
 581     putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
 582
 583     if (srv == self) {
 584         /* Force a reconnect to the currently selected server. */
 585         cManager.uplink->tries = 0;
 586         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
 587         close_socket();
 588     }
 589 }
 590
 591 void
 592 irc_wallchops(struct userNode *from, const char *to, const char *message)
 593 {
 594     putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
 595 }
 596
 597 void
 598 irc_notice(struct userNode *from, const char *to, const char *message)
 599 {
 600     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
 601 }
 602
 603 void
 604 irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
 605 {
 606     putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
 607 }
 608
 609 void
 610 irc_privmsg(struct userNode *from, const char *to, const char *message)
 611 {
 612     putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
 613 }
 614
 615 void
 616 irc_eob(void)
 617 {
 618     putsock("%s " P10_EOB, self->numeric);
 619 }
 620
 621 void
 622 irc_eob_ack(void)
 623 {
 624     putsock("%s " P10_EOB_ACK, self->numeric);
 625 }
 626
 627 void
 628 irc_ping(const char *payload)
 629 {
 630     putsock("%s " P10_PING " :%s", self->numeric, payload);
 631 }
 632
 633 void
 634 irc_pong(const char *who, const char *data)
 635 {
 636     putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
 637 }
 638
 639 void
 640 irc_pong_asll(const char *who, const char *orig_ts)
 641 {
 642     char *delim;
 643     struct timeval orig;
 644     struct timeval now;
 645     int diff;
 646
 647     orig.tv_sec = strtoul(orig_ts, &delim, 10);
 648     orig.tv_usec = (*delim == '.') ? strtoul(delim + 1, NULL, 10) : 0;
 649     gettimeofday(&now, NULL);
 650     diff = (now.tv_sec - orig.tv_sec) * 1000 + (now.tv_usec - orig.tv_usec) / 1000;
 651     putsock("%s " P10_PONG " %s %s %d " FMT_TIME_T ".%06u", self->numeric, who, orig_ts, diff, now.tv_sec, (unsigned)now.tv_usec);
 652 }
 653
 654 void
 655 irc_pass(const char *passwd)
 656 {
 657     putsock(P10_PASS " :%s", passwd);
 658 }
 659
 660 void
 661 irc_introduce(const char *passwd)
 662 {
 663     void timed_send_ping(void *data);
 664
 665     self->self_burst = self->burst = 1;
 666     irc_pass(passwd);
 667     irc_server(self);
 668     burst_length = 0;
 669     timeq_add(now + ping_freq, timed_send_ping, 0);
 670 }
 671
 672 void
 673 irc_gline(struct server *srv, struct gline *gline, int silent)
 674 {
 675     putsock("%s " P10_GLINE " %s +%s %ld :%s<%s> %s",
 676             self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, silent ? "AUTO " : "", gline->issuer, gline->reason);
 677 }
 678
 679 void
 680 irc_shun(struct server *srv, struct shun *shun)
 681 {
 682     putsock("%s " P10_SHUN " %s +%s %ld :<%s> %s",
 683             self->numeric, (srv ? srv->numeric : "*"), shun->target, shun->expires-now, shun->issuer, shun->reason);
 684 }
 685
 686 void
 687 irc_settime(const char *srv_name_mask, time_t new_time)
 688 {
 689     ioset_set_time(new_time);
 690     if (!strcmp(srv_name_mask, "*"))
 691         srv_name_mask = "";
 692     putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
 693 }
 694
 695 void
 696 irc_ungline(const char *mask)
 697 {
 698     putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
 699 }
 700
 701 void
 702 irc_unshun(const char *mask)
 703 {
 704     putsock("%s " P10_SHUN " * -%s", self->numeric, mask);
 705 }
 706
 707 static void
 708 irc_burst(struct chanNode *chan)
 709 {
 710     char burst_line[512];
 711     int pos, base_len, len;
 712     struct modeNode *mn;
 713     struct banNode *bn;
 714     struct exemptNode *en;
 715     long last_mode=-1;
 716     unsigned int n;
 717
 718     base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
 719                        self->numeric, chan->name, chan->timestamp);
 720     len = irc_make_chanmode(chan, burst_line+base_len);
 721     pos = base_len + len;
 722     if (len)
 723         burst_line[pos++] = ' ';
 724
 725     /* dump the users */
 726     for (n=0; n<chan->members.used; n++) {
 727         mn = chan->members.list[n];
 728         if (pos > 500) {
 729             burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 730             putsock("%s", burst_line);
 731             pos = base_len;
 732             last_mode = -1;
 733         }
 734         memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
 735         pos += strlen(mn->user->numeric);
 736         if (mn->modes && (mn->modes != last_mode)) {
 737             last_mode = mn->modes;
 738             burst_line[pos++] = ':';
 739             if (last_mode & MODE_CHANOP)
 740                 burst_line[pos++] = 'o';
 741             if (last_mode & MODE_HALFOP)
 742                 burst_line[pos++] = 'h';
 743             if (last_mode & MODE_VOICE)
 744                 burst_line[pos++] = 'v';
 745         }
 746         if ((n+1)<chan->members.used)
 747             burst_line[pos++] = ',';
 748     }
 749     if (chan->banlist.used) {
 750         /* dump the bans */
 751         if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
 752             burst_line[pos-1] = 0;
 753             putsock("%s", burst_line);
 754             pos = base_len;
 755         } else {
 756             burst_line[pos++] = ' ';
 757         }
 758
 759         burst_line[pos++] = ':';
 760         burst_line[pos++] = '%';
 761         base_len = pos;
 762         for (n=0; n<chan->banlist.used; n++) {
 763             bn = chan->banlist.list[n];
 764             len = strlen(bn->ban);
 765             if (pos+len+1 > 510) {
 766                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 767                 putsock("%s", burst_line);
 768                 pos = base_len;
 769             }
 770             memcpy(burst_line+pos, bn->ban, len);
 771             pos += len;
 772             burst_line[pos++] = ' ';
 773         }
 774     }
 775     if (chan->exemptlist.used) {
 776         /* dump the exempt */
 777         if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
 778             burst_line[pos-1] = 0;
 779             putsock("%s", burst_line);
 780             pos = base_len;
 781         } else {
 782             burst_line[pos++] = ' ';
 783         }
 784
 785         burst_line[pos++] = ' ';
 786         burst_line[pos++] = '~';
 787         burst_line[pos++] = ' ';
 788         base_len = pos;
 789         for (n=0; n<chan->exemptlist.used; n++) {
 790             en = chan->exemptlist.list[n];
 791             len = strlen(en->exempt);
 792             if (pos+len+1 > 510) {
 793                 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
 794                 putsock("%s", burst_line);
 795                 pos = base_len;
 796             }
 797             memcpy(burst_line+pos, en->exempt, len);
 798             pos += len;
 799             burst_line[pos++] = ' ';
 800         }
 801     }
 802     /* print the last line */
 803     burst_line[pos] = 0;
 804     putsock("%s", burst_line);
 805 }
 806
 807 void
 808 irc_quit(struct userNode *user, const char *message)
 809 {
 810     putsock("%s " P10_QUIT " :%s", user->numeric, message);
 811 }
 812
 813 void
 814 irc_error(const char *to, const char *message)
 815 {
 816     if (to) {
 817         putsock("%s " P10_ERROR " :%s", to, message);
 818     } else {
 819         putsock(":%s " P10_ERROR " :%s", self->name, message);
 820     }
 821 }
 822
 823 void
 824 irc_kill(struct userNode *from, struct userNode *target, const char *message)
 825 {
 826     if (from) {
 827         putsock("%s " P10_KILL " %s :%s!%s (%s)",
 828                 from->numeric, target->numeric, self->name, from->nick, message);
 829     } else {
 830         putsock("%s " P10_KILL " %s :%s (%s)",
 831                 self->numeric, target->numeric, self->name, message);
 832     }
 833 }
 834
 835 void
 836 irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
 837 {
 838     call_channel_mode_funcs(from, target, (char **)&modes, 0);
 839     putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
 840             (from ? from->numeric : self->numeric),
 841             target->name, modes, target->timestamp);
 842 }
 843
 844 /* Added to allow services to mode users
 845    2005 - 8 - 10 by Life4Christ
 846 */
 847 void
 848 irc_umode(struct userNode *target, const char *modes)
 849 {
 850     putsock("%s " P10_MODE " %s %s ",self->numeric,target->nick, modes);
 851 }
 852
 853
 854 void
 855 irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
 856 {
 857     putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
 858 }
 859
 860 void
 861 irc_join(struct userNode *who, struct chanNode *what)
 862 {
 863     if (what->members.used == 1) {
 864         putsock("%s " P10_CREATE " %s %lu",
 865                 who->numeric, what->name, what->timestamp);
 866     } else {
 867         putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
 868     }
 869 }
 870
 871 void
 872 irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
 873 {
 874     const char *numeric;
 875     struct modeNode *mn = GetUserMode(channel, who);
 876     numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
 877     putsock("%s " P10_KICK " %s %s :%s",
 878             numeric, channel->name, target->numeric, msg);
 879 }
 880
 881 void
 882 irc_stats(struct userNode *from, struct server *target, char type)
 883 {
 884     putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
 885 }
 886
 887 void
 888 irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
 889 {
 890     putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
 891 }
 892
 893 void
 894 irc_part(struct userNode *who, struct chanNode *what, const char *reason)
 895 {
 896     if (reason) {
 897         putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
 898     } else {
 899         putsock("%s " P10_PART " %s", who->numeric, what->name);
 900     }
 901 }
 902
 903 void
 904 irc_topic(struct userNode *service, struct userNode *who, struct chanNode *what, const char *topic)
 905 {
 906 /* UNCOMMENT FOR NEFARIOUS 0.5.0 TOPIC SUPPORT
 907  *    putsock("%s " P10_TOPIC " %s %s " FMT_TIME_T " " FMT_TIME_T " :%s", service->numeric, what->name, who->nick, what->timestamp, now, topic);
 908  * UNCOMMENT FOR NEFARIOUS 0.5.0 TOPIC SUPPORT */
 909
 910     who = service; /* REMOVE LINE FOR NEFARIOUS 0.5.0 */
 911
 912     putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
 913 }
 914
 915 void
 916 irc_raw(const char *what)
 917 {
 918     putsock("%s", what);
 919 }
 920
 921 void
 922 irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
 923 {
 924     va_list arg_list;
 925     char buffer[MAXLEN];
 926     va_start(arg_list, format);
 927     vsnprintf(buffer, MAXLEN-2, format, arg_list);
 928     buffer[MAXLEN-1] = 0;
 929     putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
 930 }
 931
 932 static void send_burst(void);
 933
 934 static void
 935 change_nicklen(int new_nicklen)
 936 {
 937     unsigned int nn;
 938     char new_nick[NICKLEN+1];
 939     struct userNode *user;
 940
 941     nicklen = new_nicklen;
 942     /* fix up any users we have here */
 943     for (nn=0; nn<=self->num_mask; nn++) {
 944         if (!(user = self->users[nn]))
 945             continue;
 946         safestrncpy(new_nick, user->nick, sizeof(new_nick));
 947         new_nick[nicklen] = 0;
 948         NickChange(user, new_nick, 1);
 949     }
 950 }
 951
 952 static CMD_FUNC(cmd_whois)
 953 {
 954     struct userNode *from;
 955     struct userNode *who;
 956
 957     if (argc < 3)
 958         return 0;
 959     if (!(from = GetUserH(origin))) {
 960         log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
 961         return 0;
 962     }
 963     if(!(who = GetUserH(argv[2]))) {
 964         irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
 965         return 1;
 966     }
 967     if (IsHiddenHost(who) && !IsOper(from)) {
 968         /* Just stay quiet. */
 969         return 1;
 970     }
 971     irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
 972     if (his_servername && his_servercomment)
 973         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
 974     else
 975         irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
 976     if (IsOper(who))
 977         irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
 978     irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
 979     return 1;
 980 }
 981
 982 static CMD_FUNC(cmd_server)
 983 {
 984     struct server *srv;
 985     const char *str;
 986
 987     if (argc < 8)
 988         return 0;
 989     if (self->uplink) {
 990         /* another server introduced us */
 991         srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 992         if (!srv)
 993             return 0;
 994         srv->self_burst = argv[5][0] == 'J';
 995         srv->burst = 1;
 996     } else {
 997         /* this must be our uplink */
 998         srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
 999         if (!srv)
1000             return 0;
1001         srv->self_burst = argv[5][0] == 'J';
1002         srv->burst = 1;
1003         if ((argv[7][0] == '+') && !force_n2k) {
1004             log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
1005         }
1006         send_burst();
1007     }
1008
1009     /* Fix up our timestamps if necessary. */
1010     if (srv->boot <= PREHISTORY) {
1011         /* Server from the mists of time.. */
1012         if (srv->hops == 1) {
1013             log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T".  This is absurd.", srv->name, srv->boot);
1014         }
1015     } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
1016                && enabled_string(str)) {
1017         /* If we have a reliable clock, we just keep our current time. */
1018     } else {
1019         if (srv->boot <= self->boot) {
1020             /* The other server is older than us.  Accept their timestamp.
1021              * Alternately, we are same age, but we accept their time
1022              * since we are linking to them. */
1023             self->boot = srv->boot;
1024             ioset_set_time(srv->link);
1025         }
1026     }
1027     if (srv == self->uplink) {
1028         extern time_t burst_begin;
1029         burst_begin = now;
1030     }
1031     return 1;
1032 }
1033
1034 static CMD_FUNC(cmd_eob)
1035 {
1036     struct server *sender;
1037     dict_iterator_t it;
1038     unsigned int ii;
1039
1040     if (!(sender = GetServerH(origin)))
1041         return 0;
1042     if (sender == self->uplink) {
1043         cManager.uplink->state = CONNECTED;
1044         for (it = dict_first(unbursted_channels); it; it = iter_next(it))
1045             irc_burst(iter_data(it));
1046         dict_delete(unbursted_channels);
1047         unbursted_channels = NULL;
1048         irc_eob();
1049         irc_eob_ack();
1050     }
1051     sender->self_burst = 0;
1052     recalc_bursts(sender);
1053     for (ii=0; ii<slf_used; ii++)
1054         slf_list[ii](sender);
1055     return 1;
1056 }
1057
1058 static CMD_FUNC(cmd_eob_ack)
1059 {
1060     extern time_t burst_begin;
1061
1062     if (GetServerH(origin) == self->uplink) {
1063         burst_length = now - burst_begin;
1064         self->self_burst = self->burst = 0;
1065     }
1066     cManager.uplink->state = CONNECTED;
1067     return 1;
1068 }
1069
1070 static CMD_FUNC(cmd_ping)
1071 {
1072     struct server *srv;
1073     struct userNode *un;
1074
1075     if (argc > 3)
1076         irc_pong_asll(argv[2], argv[3]);
1077     else if ((srv = GetServerH(origin)))
1078         irc_pong(self->name, srv->numeric);
1079     else if ((un = GetUserH(origin)))
1080         irc_pong(self->name, un->numeric);
1081     else
1082         irc_pong(self->name, origin);
1083
1084     timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1085     timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1086     timeq_add(now + ping_freq, timed_send_ping, 0);
1087     received_ping();
1088     return 1;
1089 }
1090
1091 static CMD_FUNC(cmd_error_nick)
1092 {
1093     /* Go back to original IRC length .. and try to reconnect :/ */
1094     change_nicklen(9);
1095     irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
1096     return 1;
1097 }
1098
1099 struct create_desc {
1100     struct userNode *user;
1101     time_t when;
1102 };
1103
1104 static void
1105 join_helper(struct chanNode *chan, void *data)
1106 {
1107     struct create_desc *cd = data;
1108     AddChannelUser(cd->user, chan);
1109 }
1110
1111 static void
1112 create_helper(char *name, void *data)
1113 {
1114     struct create_desc *cd = data;
1115
1116     if (!strcmp(name, "0")) {
1117         while (cd->user->channels.used > 0)
1118             DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
1119         return;
1120     }
1121
1122     AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
1123 }
1124
1125 static CMD_FUNC(cmd_create)
1126 {
1127     struct create_desc cd;
1128     struct userNode *user;
1129
1130     if ((argc < 3) || !(user = GetUserH(origin)))
1131         return 0;
1132     cd.user = user;
1133     cd.when = atoi(argv[2]);
1134     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1135     return 1;
1136 }
1137
1138 static CMD_FUNC(cmd_join)
1139 {
1140     struct create_desc cd;
1141
1142     if (!(cd.user = GetUserH(origin)))
1143         return 0;
1144     if (argc < 2)
1145         return 0;
1146     else if (argc < 3)
1147         cd.when = now;
1148     else
1149         cd.when = atoi(argv[2]);
1150     parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1151     return 1;
1152 }
1153
1154 static CMD_FUNC(cmd_pong)
1155 {
1156     if (argc < 3)
1157         return 0;
1158     if (!strcmp(argv[2], self->name)) {
1159         timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1160         timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1161         timeq_add(now + ping_freq, timed_send_ping, 0);
1162         received_ping();
1163     }
1164     return 1;
1165 }
1166
1167 static CMD_FUNC(cmd_nick)
1168 {
1169     struct userNode *user;
1170     if ((user = GetUserH(origin))) {
1171         /* nick change (since the source is a user numeric) */
1172         if (argc < 2)
1173             return 0;
1174         NickChange(user, argv[1], 1);
1175     } else {
1176         struct server *serv;
1177         char modes[MAXLEN];
1178         /* new nick */
1179         if (argc < 9)
1180             return 0;
1181         serv = GetServerH(origin);
1182         if (argc > 9)
1183             unsplit_string(argv+6, argc-9, modes);
1184         else
1185             strcpy(modes, "+");
1186         AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1187     }
1188     return 1;
1189 }
1190
1191 static CMD_FUNC(cmd_account)
1192 {
1193     struct userNode *user;
1194     struct server *server;
1195     struct handle_info *hi;
1196
1197     if ((argc < 3) || !origin || !(server = GetServerH(origin)))
1198         return 0; /* Origin must be server. */
1199
1200     /* This next line appears to tremple origin.. why? */
1201     user = GetUserN(argv[1]);
1202     if (!user)
1203         return 1; /* A QUIT probably passed the ACCOUNT. */
1204
1205     if(!extended_accounts) /* any need for this function without? */
1206         return 1;
1207
1208     if(!strcmp(argv[2],"C"))
1209     {
1210         if((hi = loc_auth(argv[4], argv[5])))
1211         {
1212             /* Return a AC A */
1213             putsock("%s " P10_ACCOUNT " %s A %s %lu", self->numeric, server->numeric , argv[3], hi->registered);
1214
1215         }
1216         else
1217         {
1218             /* Return a AC D */
1219             putsock("%s " P10_ACCOUNT " %s D %s", self->numeric, server->numeric , argv[3]);
1220         }
1221         return 1;
1222     }
1223     else if(!strcmp(argv[2],"R"))
1224        call_account_func(user, argv[3]);
1225     else
1226         call_account_func(user, argv[2]); /* For backward compatability */
1227     return 1;
1228 }
1229
1230 static CMD_FUNC(cmd_fakehost)
1231 {
1232     struct userNode *user;
1233
1234     if ((argc < 3) || !origin || !GetServerH(origin))
1235         return 0;
1236     if (!(user = GetUserN(argv[1])))
1237         return 1;
1238     assign_fakehost(user, argv[2], 0);
1239     return 1;
1240 }
1241
1242 static CMD_FUNC(cmd_burst)
1243 {
1244     extern int rel_age;
1245     char modes[MAXLEN], *members = "";
1246     static char exemptlist[MAXLEN], banlist[MAXLEN];
1247     unsigned int next = 3, res = 1;
1248     int ctype = 0, echeck = 0, bcheck = 0;
1249     struct chanNode *cNode;
1250     struct userNode *un;
1251     struct modeNode *mNode;
1252     long mode;
1253     int oplevel = -1;
1254     char *user, *end, sep;
1255     time_t in_timestamp;
1256     char* parm = NULL;
1257
1258     if (argc < 3)
1259         return 0;
1260     modes[0] = 0;
1261
1262     exemptlist[0] = 0;
1263     banlist[0] = 0;
1264
1265     while (next < argc) {
1266         switch (argv[next][0]) {
1267         case '+': {
1268             const char *pos;
1269             int n_modes;
1270             for (pos=argv[next], n_modes = 1; *pos; pos++)
1271                 if ((*pos == 'k') || (*pos == 'l') || (*pos == 'A')
1272                     || (*pos == 'U'))
1273                     n_modes++;
1274             unsplit_string(argv+next, n_modes, modes);
1275             next += n_modes;
1276             break;
1277         }
1278         case '%': {
1279             for(parm = mysep(&argv[next], " "); /* parm = first param */
1280                   parm;   /* While param is not null */
1281                   parm = mysep(&argv[next], " ")  /* parm = next param */
1282                )
1283             {
1284               switch (parm[0]) {
1285                 case '%': {
1286                   ctype = 1;
1287                   break;
1288                 }
1289                 case '~': {
1290                   ctype = 2;
1291                   break;
1292                 }
1293                 default: {
1294                   break;
1295                 }
1296               }
1297               if (ctype == 1) {
1298                 if (bcheck == 0) {
1299                   /* strip % char off start of very first ban */
1300                   if (strlen(parm) > 1) {
1301                     strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1302                     strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1303                   }
1304                   bcheck = 1;
1305                 } else {
1306                   strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1307                   strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1308                 }
1309               } else if (ctype == 2) {
1310                 if (echeck == 0) {
1311                    echeck = 1;
1312                 } else {
1313                   strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1314                   strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1315                 }
1316               }
1317             }
1318             next++;
1319             break;
1320         }
1321         default: members = argv[next++]; break;
1322       }
1323     }
1324
1325     in_timestamp = atoi(argv[2]);
1326     if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1327         cNode->timestamp = in_timestamp;
1328         dict_remove(unbursted_channels, cNode->name);
1329         irc_burst(cNode);
1330     }
1331     cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1332
1333     /* Burst channel members in now. */
1334     for (user = members, sep = *members, mode = 0; sep; user = end) {
1335         for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1336         sep = *end++; end[-1] = 0;
1337         if (sep == ':') {
1338             mode = 0;
1339             while ((sep = *end++)) {
1340                 if (sep == 'o') {
1341                     mode |= MODE_CHANOP;
1342                     oplevel = -1;
1343                 } else if (sep == 'h') {
1344                     mode |= MODE_HALFOP;
1345                     oplevel = -1;
1346                 } else if (sep == 'v') {
1347                     mode |= MODE_VOICE;
1348                     oplevel = -1;
1349                 } else if (isdigit(sep)) {
1350                     mode |= MODE_CHANOP;
1351                     if (oplevel >= 0)
1352                         oplevel += parse_oplevel(end);
1353                     else
1354                         oplevel = parse_oplevel(end);
1355                     while (isdigit(*end)) end++;
1356                 } else
1357                     break;
1358             }
1359             if (rel_age < 0)
1360                 mode = 0;
1361         }
1362         if (!(un = GetUserN(user))) {
1363             res = 0;
1364             continue;
1365         }
1366         if ((mNode = AddChannelUser(un, cNode))) {
1367             mNode->modes = mode;
1368             mNode->oplevel = oplevel;
1369         }
1370     }
1371
1372     return res;
1373 }
1374
1375 static CMD_FUNC(cmd_mode)
1376 {
1377     struct chanNode *cn;
1378     struct userNode *un;
1379     char *sethost; // sethost - reed/apples
1380     int i; // sethost - reed/apples
1381
1382     if (argc < 3)
1383         return 0;
1384     if (!IsChannelName(argv[1])) {
1385         un = GetUserH(argv[1]);
1386         if (!un) {
1387             log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1388             return 0;
1389         }
1390         // sethost - reed/apples
1391         if (argc == 3)
1392         mod_usermode(un, argv[2]);
1393         else {
1394           sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1395           i = 0;
1396           while((sethost[i++] = *argv[2]++));
1397           i--;
1398          sethost[i++] = ' ';
1399           while((sethost[i++] = *argv[3]++));
1400           mod_usermode(un, sethost); // sethost - reed/apples
1401         }
1402
1403         return 1;
1404     }
1405
1406     if (!(cn = GetChannel(argv[1]))) {
1407         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1408         return 0;
1409     }
1410     if ((un = GetUserH(origin))) {
1411         struct modeNode *mn;
1412         /* Update idle time for person setting the mode */
1413         if ((mn = GetUserMode(cn, un)))
1414             mn->idle_since = now;
1415     } else {
1416         /* If it came from a server, reset timestamp to re-sync. */
1417         cn->timestamp = atoi(argv[argc-1]);
1418     }
1419
1420     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1421 }
1422
1423 static CMD_FUNC(cmd_opmode)
1424 {
1425     struct chanNode *cn;
1426     struct userNode *un;
1427
1428     if (argc < 3)
1429         return 0;
1430
1431     if (!(cn = GetChannel(argv[1]))) {
1432         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1433         return 0;
1434     }
1435     if (!(un = GetUserH(origin))) {
1436         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1437         return 0;
1438     }
1439     if (!IsOper(un)) {
1440         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1441         return 0;
1442     }
1443
1444     return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1445 }
1446
1447 static int clear_chanmode(struct chanNode *channel, const char *modes);
1448
1449 static CMD_FUNC(cmd_clearmode)
1450 {
1451     struct chanNode *cn;
1452     struct userNode *un;
1453
1454     if (argc < 3)
1455         return 0;
1456
1457     if (!(cn = GetChannel(argv[1]))) {
1458         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1459         return 0;
1460     }
1461     if (!(un = GetUserH(origin))) {
1462         log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1463         return 0;
1464     }
1465     if (!IsOper(un)) {
1466         log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1467         return 0;
1468     }
1469
1470     return clear_chanmode(cn, argv[2]);
1471 }
1472
1473 static CMD_FUNC(cmd_topic)
1474 {
1475     struct chanNode *cn;
1476     time_t chan_ts, topic_ts;
1477     struct userNode *user;
1478
1479     if (argc < 3)
1480         return 0;
1481     if (!(cn = GetChannel(argv[1]))) {
1482         log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1483         return 0;
1484     }
1485
1486
1487     if (argc == 5) {              /* Asuka / Topic Bursting IRCu's */
1488         user = GetUserH(origin);
1489         chan_ts = atoi(argv[2]);
1490         topic_ts = atoi(argv[3]);
1491     } else if (argc >= 6) {       /* Nefarious 0.5.0 */
1492         user = GetUserH(strtok(argv[2], "!"));
1493         chan_ts = atoi(argv[3]);
1494         topic_ts = atoi(argv[4]);
1495     } else {                      /* Regular IRCu (No Topic Bursting)*/
1496         user = GetUserH(origin);
1497         chan_ts = cn->timestamp;
1498         topic_ts = now;
1499     }
1500
1501     SetChannelTopic(cn, user, user, argv[argc-1], 0);
1502     cn->topic_time = topic_ts;
1503     return 1;
1504 }
1505
1506 static CMD_FUNC(cmd_num_topic)
1507 {
1508     struct chanNode *cn;
1509
1510     if (!argv[0])
1511         return 0; /* huh? */
1512     if (argv[2]) {
1513         cn = GetChannel(argv[2]);
1514         if (!cn) {
1515             log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1516             return 0;
1517         }
1518     } else
1519         return 0;
1520
1521     switch (atoi(argv[0])) {
1522     case 331:
1523         cn->topic_time = 0;
1524         break;  /* no topic */
1525     case 332:
1526         if (argc < 4)
1527             return 0;
1528         safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1529         break;
1530     case 333:
1531         if (argc < 5)
1532             return 0;
1533         safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1534         cn->topic_time = atoi(argv[4]);
1535         break;
1536     default:
1537         return 0; /* should never happen */
1538     }
1539     return 1;
1540 }
1541
1542 static CMD_FUNC(cmd_num_gline)
1543 {
1544     if (argc < 6)
1545         return 0;
1546     gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0, 0);
1547     return 1;
1548 }
1549
1550 static CMD_FUNC(cmd_num_shun)
1551 {
1552     if (argc < 6)
1553         return 0;
1554     shun_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1555     return 1;
1556 }
1557
1558 static CMD_FUNC(cmd_quit)
1559 {
1560     struct userNode *user;
1561     if (argc < 2)
1562         return 0;
1563     /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1564      * call DelUser unless we have the user in our grasp. */
1565     if ((user = GetUserH(origin)))
1566         DelUser(user, NULL, false, argv[1]);
1567     return 1;
1568 }
1569
1570 static CMD_FUNC(cmd_kill)
1571 {
1572     struct userNode *user;
1573     if (argc < 2)
1574         return 0;
1575     user = GetUserN(argv[1]);
1576     if (!user) {
1577         /* If we get a KILL for a non-existent user, it could be a
1578          * Ghost response to a KILL we sent out earlier.  So we only
1579          * whine if the target is local.
1580          */
1581         if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1582             log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1583         return 0;
1584     }
1585
1586     if (IsLocal(user) && IsService(user)) {
1587         /* TODO: rate limit this so silly things don't happen. */
1588         ReintroduceUser(user);
1589         return 1;
1590     }
1591
1592     DelUser(user, NULL, false, argv[2]);
1593     return 1;
1594 }
1595
1596 static CMD_FUNC(cmd_part)
1597 {
1598     struct userNode *user;
1599
1600     if (argc < 2)
1601         return 0;
1602     user = GetUserH(origin);
1603     if (!user)
1604         return 0;
1605     parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1606     return 1;
1607 }
1608
1609 static CMD_FUNC(cmd_kick)
1610 {
1611     if (argc < 3)
1612         return 0;
1613     ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1614     return 1;
1615 }
1616
1617 static CMD_FUNC(cmd_squit)
1618 {
1619     struct server *server;
1620
1621     if (argc < 4)
1622         return 0;
1623     if (!(server = GetServerH(argv[1])))
1624         return 0;
1625
1626     if (server == self->uplink) {
1627         /* Force a reconnect to the currently selected server. */
1628         cManager.uplink->tries = 0;
1629         log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1630         close_socket();
1631         return 1;
1632     }
1633
1634     DelServer(server, 0, argv[3]);
1635     return 1;
1636 }
1637
1638 static CMD_FUNC(cmd_privmsg)
1639 {
1640     struct privmsg_desc pd;
1641     if (argc != 3)
1642         return 0;
1643     pd.user = GetUserH(origin);
1644     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1645         return 1;
1646     pd.is_notice = 0;
1647     pd.text = argv[2];
1648     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1649     return 1;
1650 }
1651
1652 static CMD_FUNC(cmd_notice)
1653 {
1654     struct privmsg_desc pd;
1655     if (argc != 3)
1656         return 0;
1657     pd.user = GetUserH(origin);
1658     if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1659         return 1;
1660     pd.is_notice = 1;
1661     pd.text = argv[2];
1662     parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1663     return 1;
1664 }
1665
1666 static CMD_FUNC(cmd_away)
1667 {
1668     struct userNode *uNode;
1669
1670     uNode = GetUserH(origin);
1671     if (!uNode)
1672         return 1;
1673     if (argc < 2)
1674         uNode->modes &= ~FLAGS_AWAY;
1675     else
1676         uNode->modes |= FLAGS_AWAY;
1677     return 1;
1678 }
1679
1680 static CMD_FUNC(cmd_gline)
1681 {
1682     if (argc < 3)
1683         return 0;
1684     if (argv[2][0] == '+') {
1685         if (argc < 5)
1686             return 0;
1687         gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0, 0);
1688         return 1;
1689     } else if (argv[2][0] == '-') {
1690         gline_remove(argv[2]+1, 0);
1691         return 1;
1692     } else
1693         return 0;
1694 }
1695
1696 static CMD_FUNC(cmd_shun)
1697 {
1698     if (argc < 3)
1699         return 0;
1700     if (argv[2][0] == '+') {
1701         if (argc < 5)
1702             return 0;
1703         shun_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1704         return 1;
1705     } else if (argv[2][0] == '-') {
1706         shun_remove(argv[2]+1, 0);
1707         return 1;
1708     } else
1709         return 0;
1710 }
1711
1712 static CMD_FUNC(cmd_svsnick)
1713 {
1714     struct userNode *target, *dest;
1715     if ((argc < 4)
1716         || !(target = GetUserN(argv[1]))
1717         || !IsLocal(target)
1718         || (dest = GetUserH(argv[2])))
1719         return 0;
1720     NickChange(target, argv[2], 0);
1721     return 1;
1722 }
1723
1724 static oper_func_t *of_list;
1725 static unsigned int of_size = 0, of_used = 0;
1726
1727 void
1728 free_user(struct userNode *user)
1729 {
1730     free(user->nick);
1731     free(user);
1732 }
1733
1734 static void
1735 parse_cleanup(void)
1736 {
1737     unsigned int nn;
1738     free(of_list);
1739     free(privmsg_funcs);
1740     free(notice_funcs);
1741     free(mcf_list);
1742     dict_delete(irc_func_dict);
1743     for (nn=0; nn<dead_users.used; nn++)
1744         free_user(dead_users.list[nn]);
1745     userList_clean(&dead_users);
1746 }
1747
1748 static void
1749 p10_conf_reload(void) {
1750     hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1751 }
1752
1753 static void
1754 remove_unbursted_channel(struct chanNode *cNode) {
1755     if (unbursted_channels)
1756         dict_remove(unbursted_channels, cNode->name);
1757 }
1758
1759 void
1760 init_parse(void)
1761 {
1762     const char *str, *desc;
1763     int numnick, usermask, max_users;
1764     char numer[COMBO_NUMERIC_LEN+1];
1765
1766     /* read config items */
1767     str = conf_get_data("server/extended_accounts", RECDB_QSTRING);
1768     extended_accounts = str ? enabled_string(str) : 1;
1769     str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1770     ping_freq = str ? ParseInterval(str) : 120;
1771     str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1772     ping_timeout = str ? ParseInterval(str) : 30;
1773     str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1774     force_n2k = str ? enabled_string(str) : 1;
1775     str = conf_get_data("server/numeric", RECDB_QSTRING);
1776     if (!str) {
1777         log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1778         exit(1);
1779     }
1780     numnick = atoi(str);
1781     str = conf_get_data("server/max_users", RECDB_QSTRING);
1782     max_users = str ? atoi(str) : 4096;
1783     for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1784     usermask--;
1785     if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1786         inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1787     else
1788         inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1789
1790     str = conf_get_data("server/his_servername", RECDB_QSTRING);
1791     his_servername = str ? strdup(str) : NULL;
1792     str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1793     his_servercomment = str ? strdup(str) : NULL;
1794
1795     str = conf_get_data("server/hostname", RECDB_QSTRING);
1796     desc = conf_get_data("server/description", RECDB_QSTRING);
1797     if (!str || !desc) {
1798         log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1799         exit(1);
1800     }
1801     self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1802     conf_register_reload(p10_conf_reload);
1803
1804     irc_func_dict = dict_new();
1805     dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1806     dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1807     dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1808     dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1809     dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1810     dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1811     dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1812     dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1813     dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1814     dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1815     dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1816     dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1817     dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1818     dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1819     dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1820     dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1821     dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1822     dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1823     dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1824     dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1825     dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1826     dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1827     dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1828     dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1829     dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1830     dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1831     dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1832     dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1833     dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1834     dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1835     dict_insert(irc_func_dict, CMD_PART, cmd_part);
1836     dict_insert(irc_func_dict, TOK_PART, cmd_part);
1837     dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1838     dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1839     dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1840     dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1841     dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1842     dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1843     dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1844     dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1845     dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1846     dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1847     dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1848     dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1849     dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1850     dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1851     dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1852     dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1853     dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1854     dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1855     dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1856     dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1857     dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1858     dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1859     dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1860     dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1861     dict_insert(irc_func_dict, CMD_SHUN, cmd_shun);
1862     dict_insert(irc_func_dict, TOK_SHUN, cmd_shun);
1863     dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1864     dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1865     dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1866     dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1867     dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1868     dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1869     dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1870     dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1871
1872     /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1873      * Apparently to obliterate channels from any servers that think they
1874      * exist?
1875      */
1876     dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1877     dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1878     /* Ignore invites */
1879     dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1880     dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1881     /* DESYNCH is just informational, so ignore it */
1882     dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1883     dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1884     /* Ignore channel operator notices. */
1885     dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1886     dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1887     dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1888     dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
1889     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1890     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1891     /* Ignore opers being silly. */
1892     dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1893     dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
1894     dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1895     dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
1896     dict_insert(irc_func_dict, TOK_WALLUSERS, cmd_dummy);
1897     /* Ignore dnsbl exemptions */
1898     dict_insert(irc_func_dict, TOK_EXEMPT, cmd_dummy);
1899     dict_insert(irc_func_dict, TOK_MARK, cmd_dummy);
1900     /* Ignore privs */
1901     dict_insert(irc_func_dict, TOK_PRIVS, cmd_dummy);
1902     /* Ignore remote luser */
1903     dict_insert(irc_func_dict, TOK_LUSERS, cmd_dummy);
1904     /* We have reliable clock!  Always!  Wraaa! */
1905     dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1906     dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1907     /* handle topics */
1908     dict_insert(irc_func_dict, "331", cmd_num_topic);
1909     dict_insert(irc_func_dict, "332", cmd_num_topic);
1910     dict_insert(irc_func_dict, "333", cmd_num_topic);
1911     dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1912     dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1913     /* ban list resetting */
1914     /* "stats g" responses */
1915     dict_insert(irc_func_dict, "247", cmd_num_gline);
1916     dict_insert(irc_func_dict, "542", cmd_num_shun);
1917     dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1918     /* other numeric responses we might get */
1919     dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1920     dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1921     dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1922     dict_insert(irc_func_dict, "439", cmd_dummy); /* target change too fast */
1923     dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1924     dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1925     dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1926     dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1927     dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1928
1929     num_privmsg_funcs = 16;
1930     privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1931     memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1932
1933     num_notice_funcs = 16;
1934     notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1935     memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1936
1937     userList_init(&dead_users);
1938     reg_del_channel_func(remove_unbursted_channel);
1939     reg_exit_func(parse_cleanup);
1940 }
1941
1942 int
1943 parse_line(char *line, int recursive)
1944 {
1945     char *argv[MAXNUMPARAMS], *origin;
1946     int argc, cmd, res=0;
1947     cmd_func_t *func;
1948
1949     argc = split_line(line, true, MAXNUMPARAMS, argv);
1950     cmd = self->uplink || !argv[0][1] || !argv[0][2];
1951     if (argc > cmd) {
1952         if (cmd) {
1953             if (argv[0][0] == ':') {
1954                 origin = argv[0]+1;
1955             } else if (!argv[0][1] || !argv[0][2]) {
1956                 struct server *sNode = GetServerN(argv[0]);
1957                 origin = sNode ? sNode->name : 0;
1958             } else {
1959                 struct userNode *uNode = GetUserN(argv[0]);
1960                 origin = uNode ? uNode->nick : 0;
1961             }
1962         } else
1963             origin = 0;
1964         if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1965             res = func(origin, argc-cmd, argv+cmd);
1966     }
1967     if (!res) {
1968         log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1969     } else if (!recursive) {
1970         unsigned int i;
1971         for (i=0; i<dead_users.used; i++)
1972             free_user(dead_users.list[i]);
1973         dead_users.used = 0;
1974     }
1975     return res;
1976 }
1977
1978 static void
1979 parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1980 {
1981     char *j, old;
1982
1983     do {
1984         j = target_list;
1985         while (*j != 0 && *j != ',')
1986             j++;
1987         old = *j;
1988         *j = 0;
1989
1990         if (IsChannelName(target_list)
1991             || (target_list[0] == '0' && target_list[1] == '\0')) {
1992             struct chanNode *chan = GetChannel(target_list);
1993
1994             if (chan) {
1995                 if (cf)
1996                     cf(chan, data);
1997             } else {
1998                 if (nc)
1999                     nc(target_list, data);
2000             }
2001         } else {
2002             struct userNode *user;
2003             struct privmsg_desc *pd = data;
2004
2005             pd->is_qualified = 0;
2006             if (*target_list == '@') {
2007                 user = NULL;
2008             } else if (strchr(target_list, '@')) {
2009                 struct server *server;
2010
2011                 pd->is_qualified = 1;
2012                 user = GetUserH(strtok(target_list, "@"));
2013                 server = GetServerH(strtok(NULL, "@"));
2014
2015                 if (user && (user->uplink != server)) {
2016                     /* Don't attempt to index into any arrays
2017                        using a user's numeric on another server. */
2018                     user = NULL;
2019                 }
2020             } else {
2021                 user = GetUserN(target_list);
2022             }
2023
2024             if (user) {
2025                 if (uf)
2026                     uf(user, data);
2027             } else {
2028                 if (nu)
2029                     nu(target_list, data);
2030             }
2031         }
2032         target_list = j+1;
2033     } while (old == ',');
2034 }
2035
2036 static int
2037 get_local_numeric(void)
2038 {
2039     static unsigned int next_numeric = 0;
2040     if (self->clients > self->num_mask)
2041         return -1;
2042     while (self->users[next_numeric])
2043         if (++next_numeric > self->num_mask)
2044             next_numeric = 0;
2045     return next_numeric;
2046 }
2047
2048 static void
2049 make_numeric(struct server *svr, int local_num, char *outbuf)
2050 {
2051     int slen, llen;
2052
2053     if (force_n2k || svr->numeric[1]) {
2054         slen = 2;
2055         llen = 3;
2056     } else {
2057         slen = 1;
2058         llen = (local_num < 64*64) ? 2 : 3;
2059     }
2060     strncpy(outbuf, svr->numeric, slen);
2061     inttobase64(outbuf+slen, local_num, llen);
2062     outbuf[slen+llen] = 0;
2063 }
2064
2065 struct server *
2066 AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
2067 {
2068     struct server* sNode;
2069     int slen, mlen;
2070
2071     if ((sNode = GetServerN(numeric))) {
2072         /* This means we're trying to re-add an existant server.
2073          * To be safe, we should forget the previous incarnation.
2074          * (And all its linked servers.)
2075          *
2076          * It usually only happens in replays when the original
2077          * had a ping timeout and the replay didn't (because
2078          * replaying a ping timeout invariably gets things wrong).
2079          */
2080         DelServer(sNode, 0, NULL);
2081     }
2082
2083     switch (strlen(numeric)) {
2084     case 5: slen = 2; mlen = 3; break;
2085     case 4: slen = 1; mlen = 3; break;
2086     case 3: slen = 1; mlen = 2; break;
2087     default:
2088         log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
2089         return NULL;
2090     }
2091
2092     sNode = calloc(1, sizeof(*sNode));
2093     sNode->uplink = uplink;
2094     safestrncpy(sNode->name, name, sizeof(sNode->name));
2095     sNode->num_mask = base64toint(numeric+slen, mlen);
2096     sNode->hops = hops;
2097     sNode->boot = boot;
2098     sNode->link = link;
2099     strncpy(sNode->numeric, numeric, slen);
2100     safestrncpy(sNode->description, description, sizeof(sNode->description));
2101     sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
2102     serverList_init(&sNode->children);
2103     if (sNode->uplink) {
2104         /* uplink may be NULL if we're just building ourself */
2105         serverList_append(&sNode->uplink->children, sNode);
2106     }
2107     servers_num[base64toint(numeric, slen)] = sNode;
2108     dict_insert(servers, sNode->name, sNode);
2109     return sNode;
2110 }
2111
2112 void DelServer(struct server* serv, int announce, const char *message)
2113 {
2114     unsigned int i;
2115
2116     /* If we receive an ERROR command before the SERVER
2117      * command a NULL server can be passed */
2118     if (!serv)
2119         return;
2120
2121     /* Hrm, what's the right way to SQUIT some other server?
2122      * (This code is only to handle killing juped servers.) */
2123     if (announce && (serv->uplink == self) && (serv != self->uplink))
2124         irc_squit(serv, message, NULL);
2125
2126     /* must recursively remove servers linked to this one first */
2127     for (i=serv->children.used;i>0;)
2128         if (serv->children.list[--i] != self)
2129             DelServer(serv->children.list[i], false, NULL);
2130
2131     /* clean up server's user hash tables */
2132     for (i=0;i<=serv->num_mask;i++)
2133         if (serv->users[i])
2134             DelUser(serv->users[i], NULL, false, "server delinked");
2135
2136     /* delete server */
2137     if (serv->uplink)
2138         serverList_remove(&serv->uplink->children, serv);
2139     if (serv == self->uplink)
2140         self->uplink = NULL;
2141     servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
2142     dict_remove(servers, serv->name);
2143     serverList_clean(&serv->children);
2144     free(serv->users);
2145     free(serv);
2146 }
2147
2148 struct userNode *
2149 AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
2150 {
2151     char numeric[COMBO_NUMERIC_LEN+1];
2152     int local_num = get_local_numeric();
2153     time_t timestamp = now;
2154     struct userNode *old_user = GetUserH(nick);
2155
2156     if (old_user) {
2157         if (IsLocal(old_user))
2158             return old_user;
2159         timestamp = old_user->timestamp - 1;
2160     }
2161     if (local_num == -1) {
2162         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
2163         return 0;
2164     }
2165     if (!hostname)
2166         hostname = self->name;
2167     make_numeric(self, local_num, numeric);
2168     /* TODO: Make these modes part of the conf file */
2169     return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
2170 }
2171
2172 struct userNode *
2173 AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
2174 {
2175     char numeric[COMBO_NUMERIC_LEN+1];
2176     int local_num = get_local_numeric();
2177     time_t timestamp = now;
2178     struct userNode *old_user = GetUserH(nick);
2179
2180     if (old_user) {
2181         if (IsLocal(old_user))
2182             return old_user;
2183         timestamp = old_user->timestamp - 1;
2184     }
2185     if (local_num == -1) {
2186         log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
2187         return 0;
2188     }
2189     make_numeric(self, local_num, numeric);
2190     return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
2191 }
2192
2193 int
2194 is_valid_nick(const char *nick) {
2195     unsigned int ii;
2196     /* IRC has some of The Most Fucked-Up ideas about character sets
2197      * in the world.. */
2198     if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
2199         return 0;
2200     for (ii = 0; nick[ii]; ++ii)
2201         if (!isalnum(nick[ii]) && !strchr("{|}~[\\]^-_`", nick[ii]))
2202             return 0;
2203     if (strlen(nick) > nicklen)
2204         return 0;
2205     return 1;
2206 }
2207
2208 static struct userNode*
2209 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)
2210 {
2211     struct userNode *oldUser, *uNode;
2212     unsigned int n, ignore_user;
2213
2214     if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
2215         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
2216         return NULL;
2217     }
2218
2219     if (!uplink) {
2220         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
2221         return NULL;
2222     }
2223
2224     if (uplink != GetServerN(numeric)) {
2225         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
2226         return NULL;
2227     }
2228
2229     if (!is_valid_nick(nick)) {
2230         log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
2231         return NULL;
2232     }
2233
2234     ignore_user = 0;
2235     if ((oldUser = GetUserH(nick))) {
2236         if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
2237             /* The service should collide the new user off. */
2238             oldUser->timestamp = timestamp - 1;
2239             irc_user(oldUser);
2240         }
2241         if (oldUser->timestamp > timestamp) {
2242             /* "Old" user is really newer; remove them */
2243             DelUser(oldUser, 0, 1, "Overruled by older nick");
2244         } else {
2245             /* User being added is too new; do not add them to
2246              * clients, but do add them to the server's list, since it
2247              * will send a KILL and QUIT soon. */
2248             ignore_user = 1;
2249         }
2250     }
2251
2252     /* create new usernode and set all values */
2253     uNode = calloc(1, sizeof(*uNode));
2254     uNode->nick = strdup(nick);
2255     safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2256     safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2257     safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2258     safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2259     irc_p10_pton(&uNode->ip, realip);
2260     uNode->timestamp = timestamp;
2261     modeList_init(&uNode->channels);
2262     uNode->uplink = uplink;
2263     if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2264         uNode->uplink->max_clients = uNode->uplink->clients;
2265     }
2266     uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2267     uNode->uplink->users[uNode->num_local] = uNode;
2268     mod_usermode(uNode, modes);
2269     if (ignore_user)
2270         return uNode;
2271
2272     dict_insert(clients, uNode->nick, uNode);
2273     if (dict_size(clients) > max_clients) {
2274         max_clients = dict_size(clients);
2275         max_clients_time = now;
2276     }
2277     if (IsLocal(uNode))
2278         irc_user(uNode);
2279     for (n=0; n<nuf_used; n++)
2280         if (nuf_list[n](uNode))
2281             break;
2282
2283     if ((uNode->loc == 1) && (uNode->handle_info))
2284         send_func_list(uNode);
2285
2286     return uNode;
2287 }
2288
2289 /* removes user from it's server's hash table and nick hash table */
2290 void
2291 DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2292 {
2293     unsigned int n;
2294
2295     verify(user);
2296
2297     /* mark them as dead, in case anybody cares */
2298     user->dead = 1;
2299
2300     /* remove pending adduser commands */
2301     wipe_adduser_pending(NULL, user);
2302
2303     /* remove user from all channels */
2304     while (user->channels.used > 0)
2305         DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2306
2307     /* Call these in reverse order so ChanServ can update presence
2308        information before NickServ nukes the handle_info. */
2309     for (n = duf_used; n > 0; )
2310         duf_list[--n](user, killer, why);
2311
2312     user->uplink->clients--;
2313     user->uplink->users[user->num_local] = NULL;
2314     if (IsOper(user))
2315         userList_remove(&curr_opers, user);
2316     /* remove from global dictionary, but not if after a collide */
2317     if (user == dict_find(clients, user->nick, NULL))
2318         dict_remove(clients, user->nick);
2319
2320     if (IsInvisible(user))
2321         invis_clients--;
2322
2323     if (announce) {
2324         if (IsLocal(user))
2325             irc_quit(user, why);
2326         else
2327             irc_kill(killer, user, why);
2328     }
2329
2330     modeList_clean(&user->channels);
2331     /* We don't free them, in case we try to privmsg them or something
2332      * (like when a stupid oper kills themself).  We just put them onto
2333      * a list of clients that get freed after processing each line.
2334      */
2335     if (dead_users.size)
2336         userList_append(&dead_users, user);
2337     else
2338         free_user(user);
2339 }
2340
2341 static void call_oper_funcs(struct userNode *user);
2342
2343 void mod_usermode(struct userNode *user, const char *mode_change) {
2344     int add = 1;
2345     const char *word = mode_change;
2346
2347     if (!user || !mode_change)
2348         return;
2349
2350     call_user_mode_funcs(user, mode_change);
2351
2352     while (*word != ' ' && *word) word++;
2353     while (*word == ' ') word++;
2354     while (1) {
2355 #define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2356         switch (*mode_change++) {
2357         case 0: case ' ': return;
2358         case '+': add = 1; break;
2359         case '-': add = 0; break;
2360         case 'o':
2361             if (add) {
2362                 if(!IsOper(user)) { /* Dont re-oper an oper */
2363                     userList_append(&curr_opers, user);
2364                     call_oper_funcs(user);
2365                 }
2366             } else {
2367                 userList_remove(&curr_opers, user);
2368             }
2369             do_user_mode(FLAGS_OPER);
2370             break;
2371         case 'O': do_user_mode(FLAGS_LOCOP); break;
2372         case 'i': do_user_mode(FLAGS_INVISIBLE);
2373             if (add)
2374                 invis_clients++;
2375             else
2376                 invis_clients--;
2377             break;
2378         case 'w': do_user_mode(FLAGS_WALLOP); break;
2379         case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2380         case 'd': do_user_mode(FLAGS_DEAF); break;
2381         case 'k': do_user_mode(FLAGS_SERVICE); break;
2382         case 'g': do_user_mode(FLAGS_GLOBAL); break;
2383         // sethost - reed/apples
2384         // case 'h': do_user_mode(FLAGS_HELPER); break;
2385         // I check if there's an 'h' in the first part, and if there,
2386         // then everything after the space becomes their new host.
2387         case 'h': do_user_mode(FLAGS_SETHOST);
2388             if (*word) {
2389                 char sethost[MAXLEN];
2390                 unsigned int ii;
2391                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2392                     sethost[ii++] = *word++;
2393                 sethost[ii] = 0;
2394                 while (*word == ' ')
2395                     word++;
2396                 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2397             }
2398             break;
2399         case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2400         case 'r':
2401             if (*word) {
2402                 char tag[MAXLEN];
2403                 unsigned int ii;
2404                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2405                     tag[ii++] = *word++;
2406                 tag[ii] = 0;
2407                 while (*word == ' ')
2408                     word++;
2409                 call_account_func(user, tag);
2410             }
2411             break;
2412         case 'f':
2413             if (*word) {
2414                 char host[MAXLEN];
2415                 unsigned int ii;
2416                 for (ii=0; (*word != ' ') && (*word != '\0'); )
2417                     host[ii++] = *word++;
2418                 host[ii] = 0;
2419                 while (*word == ' ')
2420                     word++;
2421                 assign_fakehost(user, host, 0);
2422             }
2423             break;
2424         }
2425 #undef do_user_mode
2426     }
2427 }
2428
2429 struct mod_chanmode *
2430 mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags, short base_oplevel)
2431 {
2432     struct mod_chanmode *change;
2433     unsigned int ii, in_arg, ch_arg, add;
2434
2435     if (argc == 0)
2436         return NULL;
2437     if (!(change = mod_chanmode_alloc(argc - 1)))
2438         return NULL;
2439
2440     for (ii = ch_arg = 0, in_arg = add = 1;
2441          (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2442          ++ii) {
2443         switch (modes[0][ii]) {
2444         case '+':
2445             add = 1;
2446             break;
2447         case '-':
2448             add = 0;
2449             break;
2450 #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)
2451         case 'C': do_chan_mode(MODE_NOCTCPS); break;
2452         case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2453         case 'c': do_chan_mode(MODE_NOCOLORS); break;
2454         case 'i': do_chan_mode(MODE_INVITEONLY); break;
2455         case 'm': do_chan_mode(MODE_MODERATED); break;
2456         case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2457         case 'p': do_chan_mode(MODE_PRIVATE); break;
2458         case 'r': do_chan_mode(MODE_REGONLY); break;
2459         case 's': do_chan_mode(MODE_SECRET); break;
2460         case 't': do_chan_mode(MODE_TOPICLIMIT); break;
2461         case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2462         case 'M': do_chan_mode(MODE_MODUNREG); break;
2463         case 'N': do_chan_mode(MODE_NONOTICE); break;
2464         case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2465         case 'T': do_chan_mode(MODE_NOAMSG); break;
2466         case 'O': do_chan_mode(MODE_OPERSONLY); break;
2467         case 'Z': do_chan_mode(MODE_SSLONLY); break;
2468         case 'L': do_chan_mode(MODE_HIDEMODE); break;
2469         case 'z':
2470           if (!(flags & MCP_REGISTERED)) {
2471            do_chan_mode(MODE_REGISTERED);
2472           } else {
2473            mod_chanmode_free(change);
2474            return NULL;
2475           }
2476           break;
2477 #undef do_chan_mode
2478         case 'l':
2479             if (add) {
2480                 if (in_arg >= argc)
2481                     goto error;
2482                 change->modes_set |= MODE_LIMIT;
2483                 change->new_limit = atoi(modes[in_arg++]);
2484             } else {
2485                 change->modes_set &= ~MODE_LIMIT;
2486                 change->modes_clear |= MODE_LIMIT;
2487             }
2488             break;
2489         case 'k':
2490             if (add) {
2491                 if (in_arg >= argc)
2492                     goto error;
2493                 change->modes_set |= MODE_KEY;
2494                 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2495             } else {
2496                 change->modes_clear |= MODE_KEY;
2497                 if (!(flags & MCP_KEY_FREE)) {
2498                     if (in_arg >= argc)
2499                         goto error;
2500                     in_arg++;
2501                 }
2502             }
2503             break;
2504         case 'U':
2505             if (add)
2506             {
2507               if (in_arg >= argc)
2508                   goto error;
2509               change->modes_set |= MODE_UPASS;
2510               safestrncpy(change->new_upass, modes[in_arg++], sizeof(change->new_upass));
2511             } else {
2512                 change->modes_clear |= MODE_UPASS;
2513                 if (!(flags & MCP_UPASS_FREE)) {
2514                     if (in_arg >= argc)
2515                         goto error;
2516                     in_arg++;
2517                 }
2518             }
2519             break;
2520         case 'A':
2521             if (add) {
2522                 if (in_arg >= argc)
2523                     goto error;
2524                 change->modes_set |= MODE_APASS;
2525                 safestrncpy(change->new_apass, modes[in_arg++], sizeof(change->new_apass));
2526             } else {
2527                 change->modes_clear |= MODE_APASS;
2528                 if (!(flags & MCP_APASS_FREE)) {
2529                     if (in_arg >= argc)
2530                       goto error;
2531                     in_arg++;
2532                 }
2533             }
2534             break;
2535         case 'b':
2536             if (!(flags & MCP_ALLOW_OVB))
2537                 goto error;
2538             if (in_arg >= argc)
2539                 goto error;
2540             change->args[ch_arg].mode = MODE_BAN;
2541             if (!add)
2542                 change->args[ch_arg].mode |= MODE_REMOVE;
2543             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2544             break;
2545         case 'e':
2546             if (!(flags & MCP_ALLOW_OVB))
2547                 goto error;
2548             if (in_arg >= argc)
2549                 goto error;
2550             change->args[ch_arg].mode = MODE_EXEMPT;
2551             if (!add)
2552                 change->args[ch_arg].mode |= MODE_REMOVE;
2553             change->args[ch_arg++].u.hostmask = modes[in_arg++];
2554             break;
2555         case 'o': case 'h': case 'v':
2556         {
2557             struct userNode *victim;
2558             char *oplevel_str;
2559             int oplevel;
2560
2561             if (in_arg >= argc)
2562                 goto error;
2563             oplevel_str = strchr(modes[in_arg], ':');
2564             if (oplevel_str)
2565             {
2566                 /* XXYYY M #channel +o XXYYY:<oplevel> */
2567                 *oplevel_str++ = '\0';
2568                 oplevel = parse_oplevel(oplevel_str);
2569                 if (oplevel <= base_oplevel && !(flags & MCP_FROM_SERVER))
2570                     oplevel = base_oplevel + 1;
2571             }
2572             else if (channel->modes & MODE_UPASS)
2573                 oplevel = base_oplevel + 1;
2574             else
2575                 oplevel = -1;
2576
2577             /* Check that oplevel is within bounds. */
2578             if (oplevel > MAXOPLEVEL)
2579                 oplevel = MAXOPLEVEL;
2580
2581             if (!(flags & MCP_ALLOW_OVB))
2582                 goto error;
2583             if (in_arg >= argc)
2584                 goto error;
2585
2586             if (modes[0][ii] == 'o')
2587                 change->args[ch_arg].mode = MODE_CHANOP;
2588             else if (modes[0][ii] == 'h')
2589                 change->args[ch_arg].mode = MODE_HALFOP;
2590             else if (modes[0][ii] == 'v')
2591                 change->args[ch_arg].mode = MODE_VOICE;
2592
2593             if (!add)
2594                 change->args[ch_arg].mode |= MODE_REMOVE;
2595             if (flags & MCP_FROM_SERVER)
2596                 victim = GetUserN(modes[in_arg++]);
2597             else
2598                 victim = GetUserH(modes[in_arg++]);
2599             if (!victim)
2600                 continue;
2601             if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
2602             {
2603                 /* Apply the oplevel change */
2604                 change->args[ch_arg].u.member->oplevel = oplevel;
2605                 ch_arg++;
2606             }
2607             break;
2608         }
2609         default:
2610             if (!(flags & MCP_FROM_SERVER))
2611                 goto error;
2612             break;
2613         }
2614     }
2615     change->argc = ch_arg; /* in case any turned out to be ignored */
2616     if (change->modes_set & MODE_SECRET) {
2617         change->modes_set &= ~(MODE_PRIVATE);
2618         change->modes_clear |= MODE_PRIVATE;
2619     } else if (change->modes_set & MODE_PRIVATE) {
2620         change->modes_set &= ~(MODE_SECRET);
2621         change->modes_clear |= MODE_SECRET;
2622     }
2623     return change;
2624   error:
2625     mod_chanmode_free(change);
2626     return NULL;
2627 }
2628
2629 struct chanmode_buffer {
2630     char modes[MAXLEN];
2631     char args[MAXLEN];
2632     struct chanNode *channel;
2633     struct userNode *actor;
2634     unsigned int modes_used;
2635     unsigned int args_used;
2636     size_t chname_len;
2637     unsigned int is_add : 1;
2638     unsigned int is_chanop : 1;
2639 };
2640
2641 static void
2642 mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2643 {
2644     size_t arg_len = strlen(arg);
2645     if (buf->modes_used > (MAXMODEPARAMS) ||
2646         buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2647         memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2648         buf->modes[buf->modes_used + buf->args_used] = '\0';
2649         irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2650         buf->modes[0] = buf->is_add ? '+' : '-';
2651         buf->modes_used = 1;
2652         buf->args_used = 0;
2653     }
2654     buf->modes[buf->modes_used++] = ch;
2655     buf->args[buf->args_used++] = ' ';
2656     memcpy(buf->args + buf->args_used, arg, arg_len);
2657     buf->args_used += arg_len;
2658 }
2659
2660 void
2661 mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2662 {
2663     struct chanmode_buffer chbuf;
2664     unsigned int arg;
2665     struct modeNode *mn;
2666     char int_buff[32], mode = '\0';
2667
2668     assert(change->argc <= change->alloc_argc);
2669     memset(&chbuf, 0, sizeof(chbuf));
2670     chbuf.channel = channel;
2671     chbuf.actor = who;
2672     chbuf.chname_len = strlen(channel->name);
2673
2674     mn = GetUserMode(channel, who);
2675     if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2676         chbuf.is_chanop = 1;
2677
2678     /* First remove modes */
2679     chbuf.is_add = 0;
2680     if (change->modes_clear) {
2681         if (mode != '-')
2682             chbuf.modes[chbuf.modes_used++] = mode = '-';
2683 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2684         DO_MODE_CHAR(PRIVATE, 'p');
2685         DO_MODE_CHAR(SECRET, 's');
2686         DO_MODE_CHAR(MODERATED, 'm');
2687         DO_MODE_CHAR(TOPICLIMIT, 't');
2688         DO_MODE_CHAR(INVITEONLY, 'i');
2689         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2690         DO_MODE_CHAR(LIMIT, 'l');
2691         DO_MODE_CHAR(DELAYJOINS, 'D');
2692         DO_MODE_CHAR(REGONLY, 'r');
2693         DO_MODE_CHAR(NOCOLORS, 'c');
2694         DO_MODE_CHAR(NOCTCPS, 'C');
2695         DO_MODE_CHAR(STRIPCOLOR, 'S');
2696         DO_MODE_CHAR(MODUNREG, 'M');
2697         DO_MODE_CHAR(NONOTICE, 'N');
2698         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2699         DO_MODE_CHAR(NOAMSG, 'T');
2700         DO_MODE_CHAR(OPERSONLY, 'O');
2701         DO_MODE_CHAR(REGISTERED, 'z');
2702         DO_MODE_CHAR(SSLONLY, 'Z');
2703         DO_MODE_CHAR(HIDEMODE, 'L');
2704 #undef DO_MODE_CHAR
2705         if (change->modes_clear & channel->modes & MODE_KEY)
2706             mod_chanmode_append(&chbuf, 'k', channel->key);
2707         if (change->modes_clear & channel->modes & MODE_UPASS)
2708             mod_chanmode_append(&chbuf, 'U', channel->upass);
2709         if (change->modes_clear * channel->modes & MODE_APASS)
2710             mod_chanmode_append(&chbuf, 'A', channel->apass);
2711     }
2712     for (arg = 0; arg < change->argc; ++arg) {
2713         if (!(change->args[arg].mode & MODE_REMOVE))
2714             continue;
2715         if (mode != '-')
2716             chbuf.modes[chbuf.modes_used++] = mode = '-';
2717         switch (change->args[arg].mode & ~MODE_REMOVE) {
2718         case MODE_BAN:
2719             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2720             break;
2721         case MODE_EXEMPT:
2722             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2723             break;
2724         default:
2725             if (change->args[arg].mode & MODE_CHANOP)
2726                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2727             if (change->args[arg].mode & MODE_HALFOP)
2728                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2729             if (change->args[arg].mode & MODE_VOICE)
2730                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2731             break;
2732         }
2733     }
2734
2735     /* Then set them */
2736     chbuf.is_add = 1;
2737     if (change->modes_set) {
2738         if (mode != '+')
2739             chbuf.modes[chbuf.modes_used++] = mode = '+';
2740 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2741         DO_MODE_CHAR(PRIVATE, 'p');
2742         DO_MODE_CHAR(SECRET, 's');
2743         DO_MODE_CHAR(MODERATED, 'm');
2744         DO_MODE_CHAR(TOPICLIMIT, 't');
2745         DO_MODE_CHAR(INVITEONLY, 'i');
2746         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2747         DO_MODE_CHAR(DELAYJOINS, 'D');
2748         DO_MODE_CHAR(REGONLY, 'r');
2749         DO_MODE_CHAR(NOCOLORS, 'c');
2750         DO_MODE_CHAR(NOCTCPS, 'C');
2751         DO_MODE_CHAR(STRIPCOLOR, 'S');
2752         DO_MODE_CHAR(MODUNREG, 'M');
2753         DO_MODE_CHAR(NONOTICE, 'N');
2754         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2755         DO_MODE_CHAR(NOAMSG, 'T');
2756         DO_MODE_CHAR(OPERSONLY, 'O');
2757         DO_MODE_CHAR(REGISTERED, 'z');
2758         DO_MODE_CHAR(SSLONLY, 'Z');
2759         DO_MODE_CHAR(HIDEMODE, 'L');
2760 #undef DO_MODE_CHAR
2761         if(change->modes_set & MODE_KEY)
2762             mod_chanmode_append(&chbuf, 'k', change->new_key);
2763         if (change->modes_set & MODE_UPASS)
2764             mod_chanmode_append(&chbuf, 'U', change->new_upass);
2765         if (change->modes_set & MODE_APASS)
2766             mod_chanmode_append(&chbuf, 'A', change->new_apass);
2767         if(change->modes_set & MODE_LIMIT) {
2768             sprintf(int_buff, "%d", change->new_limit);
2769             mod_chanmode_append(&chbuf, 'l', int_buff);
2770         }
2771     }
2772     for (arg = 0; arg < change->argc; ++arg) {
2773         if (change->args[arg].mode & MODE_REMOVE)
2774             continue;
2775         if (mode != '+')
2776             chbuf.modes[chbuf.modes_used++] = mode = '+';
2777         switch (change->args[arg].mode) {
2778         case MODE_BAN:
2779             mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
2780             break;
2781         case MODE_EXEMPT:
2782             mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2783             break;
2784         default:
2785             if (change->args[arg].mode & MODE_CHANOP)
2786                 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
2787             if (change->args[arg].mode & MODE_HALFOP)
2788                 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
2789             if (change->args[arg].mode & MODE_VOICE)
2790                 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
2791             break;
2792         }
2793     }
2794
2795     /* Flush the buffer and apply changes locally */
2796     if (chbuf.modes_used > 0) {
2797         memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2798         chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2799         irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2800     }
2801     mod_chanmode_apply(who, channel, change);
2802 }
2803
2804 char *
2805 mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2806 {
2807     unsigned int used = 0;
2808     assert(change->argc <= change->alloc_argc);
2809     if (change->modes_clear) {
2810         outbuff[used++] = '-';
2811 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2812         DO_MODE_CHAR(PRIVATE, 'p');
2813         DO_MODE_CHAR(SECRET, 's');
2814         DO_MODE_CHAR(MODERATED, 'm');
2815         DO_MODE_CHAR(TOPICLIMIT, 't');
2816         DO_MODE_CHAR(INVITEONLY, 'i');
2817         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2818         DO_MODE_CHAR(LIMIT, 'l');
2819         DO_MODE_CHAR(KEY, 'k');
2820         DO_MODE_CHAR(UPASS, 'U');
2821         DO_MODE_CHAR(APASS, 'A');
2822         DO_MODE_CHAR(DELAYJOINS, 'D');
2823         DO_MODE_CHAR(REGONLY, 'r');
2824         DO_MODE_CHAR(NOCOLORS, 'c');
2825         DO_MODE_CHAR(NOCTCPS, 'C');
2826         DO_MODE_CHAR(STRIPCOLOR, 'S');
2827         DO_MODE_CHAR(MODUNREG, 'M');
2828         DO_MODE_CHAR(NONOTICE, 'N');
2829         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2830         DO_MODE_CHAR(NOAMSG, 'T');
2831         DO_MODE_CHAR(OPERSONLY, 'O');
2832         DO_MODE_CHAR(REGISTERED, 'z');
2833         DO_MODE_CHAR(SSLONLY, 'Z');
2834         DO_MODE_CHAR(HIDEMODE, 'L');
2835 #undef DO_MODE_CHAR
2836     }
2837     if (change->modes_set) {
2838         outbuff[used++] = '+';
2839 #define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2840         DO_MODE_CHAR(PRIVATE, 'p');
2841         DO_MODE_CHAR(SECRET, 's');
2842         DO_MODE_CHAR(MODERATED, 'm');
2843         DO_MODE_CHAR(TOPICLIMIT, 't');
2844         DO_MODE_CHAR(INVITEONLY, 'i');
2845         DO_MODE_CHAR(NOPRIVMSGS, 'n');
2846         DO_MODE_CHAR(DELAYJOINS, 'D');
2847         DO_MODE_CHAR(REGONLY, 'r');
2848         DO_MODE_CHAR(NOCOLORS, 'c');
2849         DO_MODE_CHAR(NOCTCPS, 'C');
2850         DO_MODE_CHAR(STRIPCOLOR, 'S');
2851         DO_MODE_CHAR(MODUNREG, 'M');
2852         DO_MODE_CHAR(NONOTICE, 'N');
2853         DO_MODE_CHAR(NOQUITMSGS, 'Q');
2854         DO_MODE_CHAR(NOAMSG, 'T');
2855         DO_MODE_CHAR(OPERSONLY, 'O');
2856         DO_MODE_CHAR(REGISTERED, 'z');
2857         DO_MODE_CHAR(SSLONLY, 'Z');
2858         DO_MODE_CHAR(HIDEMODE, 'L');
2859 #undef DO_MODE_CHAR
2860         switch (change->modes_set & (MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)) {
2861         /* Doing this implementation has been a pain in the arse, I hope I didn't forget a possible combination */
2862         case MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS:
2863             used += sprintf(outbuff+used, "lkAU %d %s %s %s", change->new_limit, change->new_key,change->new_apass, change->new_upass);
2864             break;
2865
2866         case MODE_KEY|MODE_LIMIT|MODE_APASS:
2867             used += sprintf(outbuff+used, "lkA %d %s %s", change->new_limit, change->new_key, change->new_apass);
2868             break;
2869         case MODE_KEY|MODE_LIMIT|MODE_UPASS:
2870             used += sprintf(outbuff+used, "lkU %d %s %s", change->new_limit, change->new_key, change->new_upass);
2871             break;
2872         case MODE_KEY|MODE_APASS|MODE_UPASS:
2873             used += sprintf(outbuff+used, "kAU %s %s %s", change->new_key, change->new_apass, change->new_upass);
2874             break;
2875
2876         case MODE_KEY|MODE_APASS:
2877             used += sprintf(outbuff+used, "kA %s %s", change->new_key, change->new_apass);
2878             break;
2879         case MODE_KEY|MODE_UPASS:
2880             used += sprintf(outbuff+used, "kU %s %s", change->new_key, change->new_upass);
2881             break;
2882         case MODE_KEY|MODE_LIMIT:
2883             used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2884             break;
2885
2886         case MODE_LIMIT|MODE_UPASS:
2887             used += sprintf(outbuff+used, "lU %d %s", change->new_limit, change->new_upass);
2888             break;
2889         case MODE_LIMIT|MODE_APASS:
2890             used += sprintf(outbuff+used, "lA %d %s", change->new_limit, change->new_apass);
2891             break;
2892         case MODE_APASS|MODE_UPASS:
2893             used += sprintf(outbuff+used, "AU %s %s", change->new_apass, change->new_upass);
2894
2895         case MODE_LIMIT|MODE_APASS|MODE_UPASS:
2896             used += sprintf(outbuff+used, "lAU %d %s %s", change->new_limit, change->new_apass, change->new_upass);
2897             break;
2898
2899         case MODE_APASS:
2900             used += sprintf(outbuff+used, "A %s", change->new_apass);
2901             break;
2902         case MODE_UPASS:
2903             used += sprintf(outbuff+used, "U %s", change->new_upass);
2904             break;
2905         case MODE_KEY:
2906             used += sprintf(outbuff+used, "k %s", change->new_key);
2907             break;
2908         case MODE_LIMIT:
2909             used += sprintf(outbuff+used, "l %d", change->new_limit);
2910             break;
2911         }
2912     }
2913     outbuff[used] = 0;
2914     return outbuff;
2915 }
2916
2917 static int
2918 clear_chanmode(struct chanNode *channel, const char *modes)
2919 {
2920     unsigned int remove;
2921
2922     for (remove = 0; *modes; modes++) {
2923         switch (*modes) {
2924         case 'o': remove |= MODE_CHANOP; break;
2925         case 'h': remove |= MODE_HALFOP; break;
2926         case 'v': remove |= MODE_VOICE; break;
2927         case 'p': remove |= MODE_PRIVATE; break;
2928         case 's': remove |= MODE_SECRET; break;
2929         case 'm': remove |= MODE_MODERATED; break;
2930         case 't': remove |= MODE_TOPICLIMIT; break;
2931         case 'i': remove |= MODE_INVITEONLY; break;
2932         case 'n': remove |= MODE_NOPRIVMSGS; break;
2933         case 'k':
2934             remove |= MODE_KEY;
2935             channel->key[0] = '\0';
2936             break;
2937         case 'A':
2938             remove |= MODE_APASS;
2939             channel->apass[0] = '\0';
2940             break;
2941         case 'U':
2942             remove |= MODE_UPASS;
2943             channel->upass[0] = '\0';
2944             break;
2945         case 'l':
2946             remove |= MODE_LIMIT;
2947             channel->limit = 0;
2948             break;
2949         case 'b': remove |= MODE_BAN; break;
2950         case 'e': remove |= MODE_EXEMPT; break;
2951         case 'D': remove |= MODE_DELAYJOINS; break;
2952         case 'r': remove |= MODE_REGONLY; break;
2953         case 'c': remove |= MODE_NOCOLORS; break;
2954         case 'C': remove |= MODE_NOCTCPS; break;
2955         case 'S': remove |= MODE_STRIPCOLOR; break;
2956         case 'M': remove |= MODE_MODUNREG; break;
2957         case 'N': remove |= MODE_NONOTICE; break;
2958         case 'Q': remove |= MODE_NOQUITMSGS; break;
2959         case 'T': remove |= MODE_NOAMSG; break;
2960         case 'O': remove |= MODE_OPERSONLY; break;
2961         case 'z': remove |= MODE_REGISTERED; break;
2962         case 'Z': remove |= MODE_SSLONLY; break;
2963         case 'L': remove |= MODE_HIDEMODE; break;
2964         }
2965     }
2966
2967     if (!remove)
2968         return 1;
2969
2970     /* Remove simple modes. */
2971     channel->modes &= ~remove;
2972
2973     /* If removing bans, kill 'em all. */
2974     if ((remove & MODE_BAN) && channel->banlist.used) {
2975         unsigned int i;
2976         for (i=0; i<channel->banlist.used; i++)
2977             free(channel->banlist.list[i]);
2978         channel->banlist.used = 0;
2979     }
2980
2981     /* If removing exempts, kill 'em all. */
2982     if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2983         unsigned int i;
2984         for (i=0; i<channel->exemptlist.used; i++)
2985             free(channel->exemptlist.list[i]);
2986         channel->exemptlist.used = 0;
2987     }
2988
2989     /* Remove member modes. */
2990     if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2991         int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
2992         unsigned int i;
2993
2994         for (i = 0; i < channel->members.used; i++)
2995             channel->members.list[i]->modes &= mask;
2996     }
2997
2998     return 1;
2999 }
3000
3001 void
3002 reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3003 {
3004     unsigned int numeric = user->num_local;
3005     if (numeric >= num_privmsg_funcs) {
3006         int newnum = numeric + 8;
3007         privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
3008         memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
3009         num_privmsg_funcs = newnum;
3010     }
3011     if (privmsg_funcs[numeric])
3012         log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
3013     privmsg_funcs[numeric] = handler;
3014 }
3015
3016 void
3017 unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
3018 {
3019     unsigned int x;
3020
3021     if (!user || handler)
3022       return; /* this really only works with users */
3023
3024     memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3025
3026     for (x = user->num_local+1; x < num_privmsg_funcs; x++)
3027        memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
3028
3029     privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
3030     num_privmsg_funcs--;
3031 }
3032
3033
3034 void
3035 reg_notice_func(struct userNode *user, privmsg_func_t handler)
3036 {
3037     unsigned int numeric = user->num_local;
3038     if (numeric >= num_notice_funcs) {
3039         int newnum = numeric + 8;
3040         notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
3041         memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
3042         num_notice_funcs = newnum;
3043     }
3044     if (notice_funcs[numeric])
3045         log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
3046     notice_funcs[numeric] = handler;
3047 }
3048
3049 void
3050 unreg_notice_func(struct userNode *user, privmsg_func_t handler)
3051 {
3052     unsigned int x;
3053
3054     if (!user || handler)
3055           return; /* this really only works with users */
3056
3057     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3058
3059     for (x = user->num_local+1; x < num_notice_funcs; x++)
3060        memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
3061
3062     memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
3063     notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
3064     num_notice_funcs--;
3065 }
3066
3067 void
3068 reg_oper_func(oper_func_t handler)
3069 {
3070     if (of_used == of_size) {
3071         if (of_size) {
3072             of_size <<= 1;
3073             of_list = realloc(of_list, of_size*sizeof(oper_func_t));
3074         } else {
3075             of_size = 8;
3076             of_list = malloc(of_size*sizeof(oper_func_t));
3077         }
3078     }
3079     of_list[of_used++] = handler;
3080 }
3081
3082 static void
3083 call_oper_funcs(struct userNode *user)
3084 {
3085     unsigned int n;
3086     if (IsLocal(user))
3087         return;
3088     for (n=0; n<of_used; n++)
3089         of_list[n](user);
3090 }
3091
3092 static void
3093 send_burst(void)
3094 {
3095     unsigned int i, hop, max_hop=1;
3096     dict_iterator_t it;
3097
3098     /* burst (juped) servers, closest first (except self, which is sent already) */
3099     for (i=0; i<ArrayLength(servers_num); i++)
3100         if (servers_num[i] && servers_num[i]->hops > max_hop)
3101             max_hop = servers_num[i]->hops;
3102     for (hop=1; hop<=max_hop; hop++) {
3103         for (i=0;i<ArrayLength(servers_num);i++) {
3104             if (servers_num[i]
3105                 && (servers_num[i]->hops == hop)
3106                 && (servers_num[i] != self->uplink))
3107                 irc_server(servers_num[i]);
3108         }
3109     }
3110
3111     /* burst local nicks */
3112     for (i=0; i<=self->num_mask; i++)
3113         if (self->users[i])
3114             irc_user(self->users[i]);
3115
3116     /* build dict of unbursted channel names (just copy existing channels) */
3117     unbursted_channels = dict_new();
3118     for (it = dict_first(channels); it; it = iter_next(it))
3119         dict_insert(unbursted_channels, iter_key(it), iter_data(it));
3120 }
3121
3122 /*
3123  * Oplevel parsing
3124  */
3125 static int
3126 parse_oplevel(char *str)
3127 {
3128     int oplevel = 0;
3129     while (isdigit(*str))
3130         oplevel = oplevel * 10 + *str++ - '0';
3131     return oplevel;
3132 }
3133