1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* Now with added unF! ;) */
21 #include "inspircd_config.h"
23 #include "inspircd_io.h"
24 #include "inspircd_util.h"
27 #include <sys/errno.h>
28 #include <sys/ioctl.h>
29 #include <sys/utsname.h>
33 #include <ext/hash_map>
55 #include "inspstring.h"
57 #include "helperfuncs.h"
59 #include "socketengine.h"
60 #include "userprocess.h"
65 InspIRCd* ServerInstance;
67 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
68 int WHOWAS_MAX = 100; // default 100 people maximum in the WHOWAS list
70 extern std::vector<Module*> modules;
71 extern std::vector<ircd_module*> factory;
72 std::vector<InspSocket*> module_sockets;
75 int openSockfd[MAXSOCKS];
76 sockaddr_in client,server;
79 extern InspSocket* socket_ref[65535];
81 time_t TIME = time(NULL), OLDTIME = time(NULL);
83 SocketEngine* SE = NULL;
85 // This table references users by file descriptor.
86 // its an array to make it VERY fast, as all lookups are referenced
87 // by an integer, meaning there is no need for a scan/search operation.
88 userrec* fd_ref_table[65536];
90 serverstats* stats = new serverstats;
91 Server* MyServer = new Server;
92 ServerConfig *Config = new ServerConfig;
97 command_table cmdlist;
98 servernamelist servernames;
99 int BoundPortCount = 0;
100 std::vector<userrec*> all_opers;
104 void AddOper(userrec* user)
106 log(DEBUG,"Oper added to optimization list");
107 all_opers.push_back(user);
110 void AddServerName(std::string servername)
112 log(DEBUG,"Adding server name: %s",servername.c_str());
113 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
115 if (*a == servername)
118 servernames.push_back(servername);
121 const char* FindServerNamePtr(std::string servername)
123 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
125 if (*a == servername)
128 AddServerName(servername);
129 return FindServerNamePtr(servername);
132 void DeleteOper(userrec* user)
134 for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
138 log(DEBUG,"Oper removed from optimization list");
145 std::string GetRevision()
147 /* w00t got me to replace a bunch of strtok_r
148 * with something nicer, so i did this. Its the
149 * same thing really, only in C++. It places the
150 * text into a std::stringstream which is a readable
151 * and writeable buffer stream, and then pops two
152 * words off it, space delimited. Because it reads
153 * into the same variable twice, the first word
154 * is discarded, and the second one returned.
156 std::stringstream Revision("$Revision$");
158 Revision >> single >> single;
163 /* This function pokes and hacks at a parameter list like the following:
165 * PART #winbot,#darkgalaxy :m00!
167 * to turn it into a series of individual calls like this:
170 * PART #darkgalaxy :m00!
172 * The seperate calls are sent to a callback function provided by the caller
173 * (the caller will usually call itself recursively). The callback function
174 * must be a command handler. Calling this function on a line with no list causes
175 * no action to be taken. You must provide a starting and ending parameter number
176 * where the range of the list can be found, useful if you have a terminating
177 * parameter as above which is actually not part of the list, or parameters
178 * before the actual list as well. This code is used by many functions which
179 * can function as "one to list" (see the RFC) */
181 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
186 char blog[32][MAXBUF];
187 char blog2[32][MAXBUF];
188 int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
192 for (int i = 0; i <32; i++)
195 for (int i = 0; i <32; i++)
199 for (int i = 0; i <10; i++)
208 if (pcnt > 1) /* we have a key to copy */
210 strlcpy(keystr,parameters[1],MAXBUF);
214 if (!parameters[start])
218 if (!strchr(parameters[start],','))
223 for (int i = start; i <= end; i++)
227 strlcat(plist,parameters[i],MAXBUF);
235 for (int i = 0; i < t; i++)
240 strlcpy(blog[j++],param,MAXBUF);
244 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
249 strlcpy(blog[j++],param,MAXBUF);
252 if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
257 if ((joins) && (keystr))
259 if (strchr(keystr,','))
264 for (int i = 0; i < t2; i++)
266 if (keystr[i] == ',')
269 strlcpy(blog2[j++],param,MAXBUF);
273 strlcpy(blog2[j++],param,MAXBUF);
278 for (j = 0; j < total; j++)
284 for (q = end; q < pcnt-1; q++)
288 pars[q-end+1] = parameters[q+1];
291 if ((joins) && (parameters[1]))
302 /* repeatedly call the function with the hacked parameter list */
303 if ((joins) && (pcnt > 1))
307 // pars[1] already set up and containing key from blog2[j]
312 pars[1] = parameters[1];
318 fn(pars,pcnt-(end-start),u);
327 void kill_link(userrec *user,const char* r)
329 user_hash::iterator iter = clientlist.find(user->nick);
333 strncpy(reason,r,MAXBUF);
335 if (strlen(reason)>MAXQUIT)
337 reason[MAXQUIT-1] = '\0';
340 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
341 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
342 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
344 if (user->registered == 7) {
345 FOREACH_MOD OnUserQuit(user,reason);
346 WriteCommonExcept(user,"QUIT :%s",reason);
349 user->FlushWriteBuf();
351 FOREACH_MOD OnUserDisconnect(user);
355 FOREACH_MOD OnRawSocketClose(user->fd);
360 // this must come before the WriteOpers so that it doesnt try to fill their buffer with anything
361 // if they were an oper with +s.
362 if (user->registered == 7) {
363 purge_empty_chans(user);
364 // fix by brain: only show local quits because we only show local connects (it just makes SENSE)
366 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
370 if (iter != clientlist.end())
372 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
374 fd_ref_table[user->fd] = NULL;
375 clientlist.erase(iter);
380 void kill_link_silent(userrec *user,const char* r)
382 user_hash::iterator iter = clientlist.find(user->nick);
386 strncpy(reason,r,MAXBUF);
388 if (strlen(reason)>MAXQUIT)
390 reason[MAXQUIT-1] = '\0';
393 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
394 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
395 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
397 user->FlushWriteBuf();
399 if (user->registered == 7) {
400 FOREACH_MOD OnUserQuit(user,reason);
401 WriteCommonExcept(user,"QUIT :%s",reason);
404 FOREACH_MOD OnUserDisconnect(user);
408 FOREACH_MOD OnRawSocketClose(user->fd);
413 if (user->registered == 7) {
414 purge_empty_chans(user);
417 if (iter != clientlist.end())
419 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
421 fd_ref_table[user->fd] = NULL;
422 clientlist.erase(iter);
428 InspIRCd::InspIRCd(int argc, char** argv)
431 module_sockets.clear();
432 this->startup_time = time(NULL);
434 log(DEBUG,"*** InspIRCd starting up!");
435 if (!FileExists(CONFIG_FILE))
437 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
438 log(DEFAULT,"main: no config");
439 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
443 for (int i = 1; i < argc; i++)
445 if (!strcmp(argv[i],"-nofork")) {
446 Config->nofork = true;
448 if (!strcmp(argv[i],"-wait")) {
451 if (!strcmp(argv[i],"-nolimit")) {
452 Config->unlimitcore = true;
457 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
459 // initialize the lowercase mapping table
460 for (unsigned int cn = 0; cn < 256; cn++)
462 // lowercase the uppercase chars
463 for (unsigned int cn = 65; cn < 91; cn++)
464 lowermap[cn] = tolower(cn);
465 // now replace the specific chars for scandanavian comparison
466 lowermap[(unsigned)'['] = '{';
467 lowermap[(unsigned)']'] = '}';
468 lowermap[(unsigned)'\\'] = '|';
472 Config->ClearStack();
473 Config->Read(true,NULL);
476 AddServerName(Config->ServerName);
478 BoundPortCount = BindPorts();
483 if (DaemonSeed() == ERROR)
485 printf("ERROR: could not go into daemon mode. Shutting down.\n");
490 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
491 * initialize the socket engine.
493 SE = new SocketEngine();
495 /* We must load the modules AFTER initializing the socket engine, now */
498 printf("\nInspIRCd is now running!\n");
503 template<typename T> inline string ConvToStr(const T &in)
506 if (!(tmp << in)) return string();
510 /* re-allocates a nick in the user_hash after they change nicknames,
511 * returns a pointer to the new user as it may have moved */
513 userrec* ReHashNick(char* Old, char* New)
515 //user_hash::iterator newnick;
516 user_hash::iterator oldnick = clientlist.find(Old);
518 log(DEBUG,"ReHashNick: %s %s",Old,New);
520 if (!strcasecmp(Old,New))
522 log(DEBUG,"old nick is new nick, skipping");
523 return oldnick->second;
526 if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
528 log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
530 userrec* olduser = oldnick->second;
531 clientlist[New] = olduser;
532 clientlist.erase(oldnick);
534 log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
536 return clientlist[New];
539 /* adds or updates an entry in the whowas list */
540 void AddWhoWas(userrec* u)
542 whowas_hash::iterator iter = whowas.find(u->nick);
543 WhoWasUser *a = new WhoWasUser();
544 strlcpy(a->nick,u->nick,NICKMAX);
545 strlcpy(a->ident,u->ident,IDENTMAX);
546 strlcpy(a->dhost,u->dhost,160);
547 strlcpy(a->host,u->host,160);
548 strlcpy(a->fullname,u->fullname,MAXGECOS);
549 strlcpy(a->server,u->server,256);
550 a->signon = u->signon;
552 /* MAX_WHOWAS: max number of /WHOWAS items
553 * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
554 * can be replaced by a newer one
557 if (iter == whowas.end())
559 if (whowas.size() >= (unsigned)WHOWAS_MAX)
561 for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
563 // 3600 seconds in an hour ;)
564 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
566 // delete the old one
567 if (i->second) delete i->second;
568 // replace with new one
570 log(DEBUG,"added WHOWAS entry, purged an old record");
574 // no space left and user doesnt exist. Don't leave ram in use!
575 log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
580 log(DEBUG,"added fresh WHOWAS entry");
586 log(DEBUG,"updated WHOWAS entry");
587 if (iter->second) delete iter->second;
593 void* dns_task(void* arg)
595 userrec* u = (userrec*)arg;
596 log(DEBUG,"DNS thread for user %s",u->nick);
601 if (dns1.ReverseLookup(u->ip))
603 log(DEBUG,"DNS Step 1");
604 while (!dns1.HasResult())
608 host = dns1.GetResult();
611 log(DEBUG,"DNS Step 2: '%s'",host.c_str());
612 if (dns2.ForwardLookup(host))
614 while (!dns2.HasResult())
618 ip = dns2.GetResultIP();
619 log(DEBUG,"DNS Step 3 '%s'(%d) '%s'(%d)",ip.c_str(),ip.length(),u->ip,strlen(u->ip));
620 if (ip == std::string(u->ip))
622 log(DEBUG,"DNS Step 4");
623 if (host.length() < 160)
625 log(DEBUG,"DNS Step 5");
626 strcpy(u->host,host.c_str());
627 strcpy(u->dhost,host.c_str());
638 /* add a client connection to the sockets list */
639 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
643 user_hash::iterator iter;
645 tempnick = ConvToStr(socket) + "-unknown";
646 sprintf(tn2,"%lu-unknown",(unsigned long)socket);
648 iter = clientlist.find(tempnick);
651 // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
652 // using one as a registered connection. As theyre per fd, we can also safely assume
653 // that we wont have collisions. Therefore, if the nick exists in the list, its only
654 // used by a dead socket, erase the iterator so that the new client may reclaim it.
655 // this was probably the cause of 'server ignores me when i hammer it with reconnects'
656 // issue in earlier alphas/betas
657 if (iter != clientlist.end())
659 userrec* goner = iter->second;
661 clientlist.erase(iter);
665 * It is OK to access the value here this way since we know
666 * it exists, we just created it above.
668 * At NO other time should you access a value in a map or a
671 clientlist[tempnick] = new userrec();
674 log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
676 clientlist[tempnick]->fd = socket;
677 strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
678 strlcpy(clientlist[tempnick]->host, host,160);
679 strlcpy(clientlist[tempnick]->dhost, host,160);
680 clientlist[tempnick]->server = (char*)FindServerNamePtr(Config->ServerName);
681 strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
682 clientlist[tempnick]->registered = 0;
683 clientlist[tempnick]->signon = TIME + Config->dns_timeout;
684 clientlist[tempnick]->lastping = 1;
685 clientlist[tempnick]->port = port;
686 strlcpy(clientlist[tempnick]->ip,ip,16);
688 // set the registration timeout for this user
689 unsigned long class_regtimeout = 90;
691 long class_threshold = 5;
692 long class_sqmax = 262144; // 256kb
693 long class_rqmax = 4096; // 4k
695 for (ClassVector::iterator i = Config->Classes.begin(); i != Config->Classes.end(); i++)
697 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
699 class_regtimeout = (unsigned long)i->registration_timeout;
700 class_flood = i->flood;
701 clientlist[tempnick]->pingmax = i->pingtime;
702 class_threshold = i->threshold;
703 class_sqmax = i->sendqmax;
704 class_rqmax = i->recvqmax;
709 clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax + Config->dns_timeout;
710 clientlist[tempnick]->timeout = TIME+class_regtimeout;
711 clientlist[tempnick]->flood = class_flood;
712 clientlist[tempnick]->threshold = class_threshold;
713 clientlist[tempnick]->sendqmax = class_sqmax;
714 clientlist[tempnick]->recvqmax = class_rqmax;
719 for (int i = 0; i < MAXCHANS; i++)
720 clientlist[tempnick]->chans.push_back(a);
722 if (clientlist.size() > Config->SoftLimit)
724 kill_link(clientlist[tempnick],"No more connections allowed");
728 if (clientlist.size() >= MAXCLIENTS)
730 kill_link(clientlist[tempnick],"No more connections allowed");
734 // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
735 // its a pretty big but for the moment valid assumption:
736 // file descriptors are handed out starting at 0, and are recycled as theyre freed.
737 // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
738 // irc server at once (or the irc server otherwise initiating this many connections, files etc)
739 // which for the time being is a physical impossibility (even the largest networks dont have more
740 // than about 10,000 users on ONE server!)
741 if ((unsigned)socket > 65534)
743 kill_link(clientlist[tempnick],"Server is full");
748 char* e = matches_exception(ip);
751 char* r = matches_zline(ip);
755 snprintf(reason,MAXBUF,"Z-Lined: %s",r);
756 kill_link(clientlist[tempnick],reason);
760 fd_ref_table[socket] = clientlist[tempnick];
761 SE->AddFd(socket,true,X_ESTAB_CLIENT);
764 /* shows the message of the day, and any other on-logon stuff */
765 void FullConnectUser(userrec* user)
767 stats->statsConnects++;
768 user->idle_lastmsg = TIME;
769 log(DEBUG,"ConnectUser: %s",user->nick);
771 if ((strcmp(Passwd(user),"")) && (!user->haspassed))
773 kill_link(user,"Invalid password");
778 kill_link(user,"Unauthorised connection");
782 char match_against[MAXBUF];
783 snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
784 char* e = matches_exception(match_against);
787 char* r = matches_gline(match_against);
791 snprintf(reason,MAXBUF,"G-Lined: %s",r);
792 kill_link_silent(user,reason);
795 r = matches_kline(user->host);
799 snprintf(reason,MAXBUF,"K-Lined: %s",r);
800 kill_link_silent(user,reason);
806 WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Config->Network);
807 WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Config->Network,user->nick,user->ident,user->host);
808 WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,Config->ServerName,VERSION);
809 WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
810 WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,Config->ServerName,VERSION);
811 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
813 v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
814 v << " MAXBANS=60 NICKLEN=" << NICKMAX;
815 v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
816 v << Config->Network;
817 std::string data005 = v.str();
818 FOREACH_MOD On005Numeric(data005);
819 // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
820 // so i'd better split it :)
821 std::stringstream out(data005);
822 std::string token = "";
823 std::string line5 = "";
824 int token_counter = 0;
828 line5 = line5 + token + " ";
830 if ((token_counter >= 13) || (out.eof() == true))
832 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
839 // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
840 // onto the network and produce 'fake direction'
841 FOREACH_MOD OnUserConnect(user);
842 FOREACH_MOD OnGlobalConnect(user);
843 user->registered = 7;
844 WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
848 /* shows the message of the day, and any other on-logon stuff */
849 void ConnectUser(userrec *user)
851 // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
852 if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
854 FullConnectUser(user);
858 std::string GetVersionString()
860 char versiondata[MAXBUF];
862 char dnsengine[] = "multithread";
864 char dnsengine[] = "singlethread";
866 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s [FLAGS=%lu,%s,%s]",VERSION,GetRevision().c_str(),Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
870 void handle_version(char **parameters, int pcnt, userrec *user)
872 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
876 bool is_valid_cmd(const char* commandname, int pcnt, userrec * user)
878 for (unsigned int i = 0; i < cmdlist.size(); i++)
880 if (!strcasecmp(cmdlist[i].command,commandname))
882 if (cmdlist[i].handler_function)
884 if ((pcnt>=cmdlist[i].min_params) && (strcasecmp(cmdlist[i].source,"<core>")))
886 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
888 if (cmdlist[i].flags_needed)
890 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
908 // calls a handler function for a command
910 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
912 for (unsigned int i = 0; i < cmdlist.size(); i++)
914 if (!strcasecmp(cmdlist[i].command,commandname))
916 if (cmdlist[i].handler_function)
918 if (pcnt>=cmdlist[i].min_params)
920 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
922 if (cmdlist[i].flags_needed)
924 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
926 cmdlist[i].handler_function(parameters,pcnt,user);
931 cmdlist[i].handler_function(parameters,pcnt,user);
941 void force_nickchange(userrec* user,const char* newnick)
948 FOREACH_RESULT(OnUserPreNick(user,newnick));
950 stats->statsCollisions++;
951 kill_link(user,"Nickname collision");
954 if (matches_qline(newnick))
956 stats->statsCollisions++;
957 kill_link(user,"Nickname collision");
965 strncpy(nick,newnick,MAXBUF);
967 if (user->registered == 7)
971 handle_nick(pars,1,user);
977 int process_parameters(char **command_p,char *parameters)
980 int q = strlen(parameters);
983 /* no parameters, command_p invalid! */
986 if (parameters[0] == ':')
988 command_p[0] = parameters+1;
993 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
995 /* only one parameter */
996 command_p[0] = parameters;
997 if (parameters[0] == ':')
999 if (strchr(parameters,' ') != NULL)
1007 command_p[j++] = parameters;
1008 for (int i = 0; i <= q; i++)
1010 if (parameters[i] == ' ')
1012 command_p[j++] = parameters+i+1;
1013 parameters[i] = '\0';
1014 if (command_p[j-1][0] == ':')
1016 *command_p[j-1]++; /* remove dodgy ":" */
1018 /* parameter like this marks end of the sequence */
1022 return j; /* returns total number of items in the list */
1025 void process_command(userrec *user, char* cmd)
1029 char *command_p[127];
1030 char p[MAXBUF], temp[MAXBUF];
1031 int j, items, cmd_found;
1033 for (int i = 0; i < 127; i++)
1034 command_p[i] = NULL;
1049 int total_params = 0;
1052 for (unsigned int q = 0; q < strlen(cmd)-1; q++)
1054 if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
1057 // found a 'trailing', we dont count them after this.
1065 // another phidjit bug...
1066 if (total_params > 126)
1068 *(strchr(cmd,' ')) = '\0';
1069 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
1073 strlcpy(temp,cmd,MAXBUF);
1075 std::string tmp = cmd;
1076 for (int i = 0; i <= MODCOUNT; i++)
1078 std::string oldtmp = tmp;
1079 modules[i]->OnServerRaw(tmp,true,user);
1082 log(DEBUG,"A Module changed the input string!");
1083 log(DEBUG,"New string: %s",tmp.c_str());
1084 log(DEBUG,"Old string: %s",oldtmp.c_str());
1088 strlcpy(cmd,tmp.c_str(),MAXBUF);
1089 strlcpy(temp,cmd,MAXBUF);
1091 if (!strchr(cmd,' '))
1093 /* no parameters, lets skip the formalities and not chop up
1095 log(DEBUG,"About to preprocess command with no params");
1097 command_p[0] = NULL;
1099 for (unsigned int i = 0; i <= strlen(cmd); i++)
1101 cmd[i] = toupper(cmd[i]);
1109 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
1110 for (unsigned int i = 0; i < strlen(temp); i++)
1112 if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
1118 /* split the full string into a command plus parameters */
1122 if (strchr(cmd,' '))
1124 for (unsigned int i = 0; i <= strlen(cmd); i++)
1126 /* capitalise the command ONLY, leave params intact */
1127 cmd[i] = toupper(cmd[i]);
1128 /* are we nearly there yet?! :P */
1132 parameters = cmd+i+1;
1140 for (unsigned int i = 0; i <= strlen(cmd); i++)
1142 cmd[i] = toupper(cmd[i]);
1149 if (strlen(command)>MAXCOMMAND)
1151 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
1155 for (unsigned int x = 0; x < strlen(command); x++)
1157 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
1159 if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
1161 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
1163 stats->statsUnknown++;
1164 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1171 for (unsigned int i = 0; i != cmdlist.size(); i++)
1173 if (cmdlist[i].command[0])
1175 if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
1181 items = process_parameters(command_p,parameters);
1186 command_p[0] = NULL;
1192 command_p[0] = NULL;
1197 /* activity resets the ping pending timer */
1198 user->nping = TIME + user->pingmax;
1199 if ((items) < cmdlist[i].min_params)
1201 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
1202 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
1205 if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
1207 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1208 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
1212 if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
1214 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1215 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
1219 /* if the command isnt USER, PASS, or NICK, and nick is empty,
1221 if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
1223 if ((!isnick(user->nick)) || (user->registered != 7))
1225 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
1226 WriteServ(user->fd,"451 %s :You have not registered",command);
1230 if ((user->registered == 7) && (!strchr(user->modes,'o')))
1232 std::stringstream dcmds(Config->DisabledCommands);
1233 while (!dcmds.eof())
1235 std::string thiscmd;
1237 if (!strcasecmp(thiscmd.c_str(),command))
1239 // command is disabled!
1240 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
1245 if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
1247 if (cmdlist[i].handler_function)
1250 /* ikky /stats counters */
1253 cmdlist[i].use_count++;
1254 cmdlist[i].total_bytes+=strlen(temp);
1258 FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
1259 if (MOD_RESULT == 1) {
1263 /* WARNING: nothing may come after the
1264 * command handler call, as the handler
1265 * may free the user structure! */
1267 cmdlist[i].handler_function(command_p,items,user);
1273 WriteServ(user->fd,"451 %s :You have not registered",command);
1281 if ((!cmd_found) && (user))
1283 stats->statsUnknown++;
1284 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1288 bool removecommands(const char* source)
1290 bool go_again = true;
1294 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
1296 if (!strcmp(i->source,source))
1298 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
1309 void process_buffer(const char* cmdbuf,userrec *user)
1313 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1319 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
1326 while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
1328 strlcpy(cmd,cmdbuf,MAXBUF);
1333 int sl = strlen(cmd)-1;
1334 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1339 if ((cmd[sl] == 13) || (cmd[sl] == 10))
1344 while (cmd[sl] == ' ') // strip trailing spaces
1354 log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
1356 if ((user) && (cmd))
1358 process_command(user,cmd);
1362 char MODERR[MAXBUF];
1369 void InspIRCd::erase_factory(int j)
1372 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
1377 factory.push_back(NULL);
1384 void InspIRCd::erase_module(int j)
1387 for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
1393 modules.push_back(NULL);
1399 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
1403 Config->module_names.erase(v);
1411 bool InspIRCd::UnloadModule(const char* filename)
1413 std::string filename_str = filename;
1414 for (unsigned int j = 0; j != Config->module_names.size(); j++)
1416 if (Config->module_names[j] == filename_str)
1418 if (modules[j]->GetVersion().Flags & VF_STATIC)
1420 log(DEFAULT,"Failed to unload STATIC module %s",filename);
1421 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
1424 /* Give the module a chance to tidy out all its metadata */
1425 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
1427 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
1429 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
1431 modules[j]->OnCleanup(TYPE_USER,u->second);
1433 FOREACH_MOD OnUnloadModule(modules[j],Config->module_names[j]);
1435 log(DEBUG,"Deleting module...");
1437 log(DEBUG,"Erasing module entry...");
1439 log(DEBUG,"Removing dependent commands...");
1440 removecommands(filename);
1441 log(DEFAULT,"Module %s unloaded",filename);
1446 log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
1447 snprintf(MODERR,MAXBUF,"Module not loaded");
1451 bool InspIRCd::LoadModule(const char* filename)
1453 char modfile[MAXBUF];
1455 snprintf(modfile,MAXBUF,"%s",filename);
1457 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
1459 std::string filename_str = filename;
1461 if (!DirValid(modfile))
1463 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
1464 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
1468 log(DEBUG,"Loading module: %s",modfile);
1470 if (FileExists(modfile))
1473 for (unsigned int j = 0; j < Config->module_names.size(); j++)
1475 if (Config->module_names[j] == filename_str)
1477 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
1478 snprintf(MODERR,MAXBUF,"Module already loaded");
1482 ircd_module* a = new ircd_module(modfile);
1483 factory[MODCOUNT+1] = a;
1484 if (factory[MODCOUNT+1]->LastError())
1486 log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
1487 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
1491 if (factory[MODCOUNT+1]->factory)
1493 Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
1494 modules[MODCOUNT+1] = m;
1495 /* save the module and the module's classfactory, if
1496 * this isnt done, random crashes can occur :/ */
1497 Config->module_names.push_back(filename);
1501 log(DEFAULT,"Unable to load %s",modfile);
1502 snprintf(MODERR,MAXBUF,"Factory function failed!");
1509 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
1510 snprintf(MODERR,MAXBUF,"Module file could not be found");
1515 FOREACH_MOD OnLoadModule(modules[MODCOUNT],filename_str);
1521 bool expire_run = false;
1522 std::vector<int> activefds;
1526 InspSocket* s = NULL;
1527 InspSocket* s_del = NULL;
1529 unsigned int numberactive;
1530 sockaddr_in sock_us; // our port number
1531 socklen_t uslen; // length of our port number
1533 if (!Config->nofork)
1535 freopen("/dev/null","w",stdout);
1536 freopen("/dev/null","w",stderr);
1539 /* Add the listening sockets used for client inbound connections
1540 * to the socket engine
1542 for (int count = 0; count < BoundPortCount; count++)
1543 SE->AddFd(openSockfd[count],true,X_LISTEN);
1545 WritePID(Config->PID);
1547 /* main loop, this never returns */
1550 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
1551 * Once per loop iteration is pleanty.
1556 /* Run background module timers every few seconds
1557 * (the docs say modules shouldnt rely on accurate
1558 * timing using this event, so we dont have to
1559 * time this exactly).
1561 if (((TIME % 8) == 0) && (!expire_run))
1564 FOREACH_MOD OnBackgroundTimer(TIME);
1568 if ((TIME % 8) == 1)
1571 /* Once a second, do the background processing */
1572 if (TIME != OLDTIME)
1573 while (DoBackgroundUserStuff(TIME));
1575 /* Call the socket engine to wait on the active
1576 * file descriptors. The socket engine has everything's
1577 * descriptors in its list... dns, modules, users,
1578 * servers... so its nice and easy, just one call.
1580 SE->Wait(activefds);
1583 * Now process each of the fd's. For users, we have a fast
1584 * lookup table which can find a user by file descriptor, so
1585 * processing them by fd isnt expensive. If we have a lot of
1586 * listening ports or module sockets though, things could get
1589 numberactive = activefds.size();
1590 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
1592 int socket_type = SE->GetType(activefds[activefd]);
1593 switch (socket_type)
1595 case X_ESTAB_CLIENT:
1597 cu = fd_ref_table[activefds[activefd]];
1603 case X_ESTAB_MODULE:
1605 /* Process module-owned sockets.
1606 * Modules are encouraged to inherit their sockets from
1607 * InspSocket so we can process them neatly like this.
1609 s = socket_ref[activefds[activefd]];
1611 if ((s) && (!s->Poll()))
1613 log(DEBUG,"Socket poll returned false, close and bail");
1614 SE->DelFd(s->GetFd());
1615 for (std::vector<InspSocket*>::iterator a = this->module_sockets.begin(); a < this->module_sockets.end(); a++)
1617 s_del = (InspSocket*)*a;
1618 if ((s_del) && (s_del->GetFd() == activefds[activefd]))
1620 this->module_sockets.erase(a);
1632 /* When we are using single-threaded dns,
1633 * the sockets for dns end up in our mainloop.
1634 * When we are using multi-threaded dns,
1635 * each thread has its own basic poll() loop
1636 * within it, making them 'fire and forget'
1637 * and independent of the mainloop.
1639 #ifndef THREADED_DNS
1640 dns_poll(activefds[activefd]);
1646 /* It's a listener */
1647 uslen = sizeof(sock_us);
1648 length = sizeof(client);
1649 incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
1650 if (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen))
1652 in_port = ntohs(sock_us.sin_port);
1653 log(DEBUG,"Accepted socket %d",incomingSockfd);
1654 target = (char*)inet_ntoa(client.sin_addr);
1655 /* Years and years ago, we used to resolve here
1656 * using gethostbyaddr(). That is sucky and we
1657 * don't do that any more...
1659 if (incomingSockfd >= 0)
1661 FOREACH_MOD OnRawSocketAccept(incomingSockfd, target, in_port);
1662 stats->statsAccept++;
1663 AddClient(incomingSockfd, target, in_port, false, target);
1664 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
1668 WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)in_port,target);
1669 log(DEBUG,"accept failed: %lu",(unsigned long)in_port);
1670 stats->statsRefused++;
1675 log(DEBUG,"Couldnt look up the port number for fd %lu (OS BROKEN?!)",incomingSockfd);
1676 shutdown(incomingSockfd,2);
1677 close(incomingSockfd);
1682 /* Something went wrong if we're in here.
1683 * In fact, so wrong, im not quite sure
1684 * what we would do, so for now, its going
1685 * to safely do bugger all.
1692 /* This is never reached -- we hope! */
1696 /**********************************************************************************/
1699 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
1702 int main(int argc, char** argv)
1704 ServerInstance = new InspIRCd(argc, argv);
1705 ServerInstance->Run();
1706 delete ServerInstance;