src/ircd.c

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  ircd.c: Starts up and runs the ircd.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  *
  24  *  $Id: ircd.c 3380 2007-04-03 22:25:11Z jilles $
  25  */
  26
  27 #include "ratbox_lib.h"
  28 #include "stdinc.h"
  29 #include "setup.h"
  30 #include "config.h"
  31 #include "ircd.h"
  32 #include "channel.h"
  33 #include "class.h"
  34 #include "client.h"
  35 #include "common.h"
  36 #include "hash.h"
  37 #include "match.h"
  38 #include "ircd_signal.h"
  39 #include "msg.h"                /* msgtab */
  40 #include "hostmask.h"
  41 #include "numeric.h"
  42 #include "parse.h"
  43 #include "res.h"
  44 #include "restart.h"
  45 #include "s_auth.h"
  46 #include "s_conf.h"
  47 #include "logger.h"
  48 #include "s_serv.h"             /* try_connections */
  49 #include "s_user.h"
  50 #include "s_stats.h"
  51 #include "scache.h"
  52 #include "send.h"
  53 #include "supported.h"
  54 #include "whowas.h"
  55 #include "modules.h"
  56 #include "hook.h"
  57 #include "ircd_getopt.h"
  58 #include "newconf.h"
  59 #include "reject.h"
  60 #include "s_conf.h"
  61 #include "s_newconf.h"
  62 #include "cache.h"
  63 #include "monitor.h"
  64 #include "patchlevel.h"
  65 #include "serno.h"
  66 #include "sslproc.h"
  67 #include "chmode.h"
  68
  69 /* /quote set variables */
  70 struct SetOptions GlobalSetOptions;
  71
  72 /* configuration set from ircd.conf */
  73 struct config_file_entry ConfigFileEntry;
  74 /* server info set from ircd.conf */
  75 struct server_info ServerInfo;
  76 /* admin info set from ircd.conf */
  77 struct admin_info AdminInfo;
  78
  79 struct Counter Count;
  80 struct ServerStatistics ServerStats;
  81
  82 int maxconnections;
  83 struct Client me;               /* That's me */
  84 struct LocalUser meLocalUser;   /* That's also part of me */
  85
  86 rb_dlink_list global_client_list;
  87
  88 /* unknown/client pointer lists */
  89 rb_dlink_list unknown_list;        /* unknown clients ON this server only */
  90 rb_dlink_list lclient_list;     /* local clients only ON this server */
  91 rb_dlink_list serv_list;           /* local servers to this server ONLY */
  92 rb_dlink_list global_serv_list;    /* global servers on the network */
  93 rb_dlink_list local_oper_list;     /* our opers, duplicated in lclient_list */
  94 rb_dlink_list oper_list;           /* network opers */
  95
  96 time_t startup_time;
  97
  98 int default_server_capabs = CAP_MASK;
  99
 100 int splitmode;
 101 int splitchecking;
 102 int split_users;
 103 int split_servers;
 104 int eob_count;
 105
 106 unsigned long initialVMTop = 0;  /* top of virtual memory at init */
 107 const char *logFileName = LPATH;
 108 const char *pidFileName = PPATH;
 109
 110 char **myargv;
 111 int dorehash = 0;
 112 int dorehashbans = 0;
 113 int doremotd = 0;
 114 int kline_queued = 0;
 115 int server_state_foreground = 0;
 116 int opers_see_all_users = 0;
 117 int ssl_ok = 0;
 118 int zlib_ok = 1;
 119
 120 int testing_conf = 0;
 121
 122 /* patricia */
 123 rb_bh *prefix_heap;
 124 rb_bh *node_heap;
 125 rb_bh *patricia_heap;
 126
 127 rb_bh *linebuf_heap;
 128
 129 rb_bh *dnode_heap;
 130
 131 void
 132 ircd_shutdown(const char *reason)
 133 {
 134         struct Client *target_p;
 135         rb_dlink_node *ptr;
 136
 137         RB_DLINK_FOREACH(ptr, lclient_list.head)
 138         {
 139                 target_p = ptr->data;
 140
 141                 sendto_one(target_p, ":%s NOTICE %s :Server Terminating. %s",
 142                         me.name, target_p->name, reason);
 143         }
 144
 145         RB_DLINK_FOREACH(ptr, serv_list.head)
 146         {
 147                 target_p = ptr->data;
 148
 149                 sendto_one(target_p, ":%s ERROR :Terminated by %s",
 150                         me.name, reason);
 151         }
 152
 153         ilog(L_MAIN, "Server Terminating. %s", reason);
 154         close_logfiles();
 155
 156         unlink(pidFileName);
 157         exit(0);
 158 }
 159
 160 /*
 161  * print_startup - print startup information
 162  */
 163 static void
 164 print_startup(int pid)
 165 {
 166         inotice("now running in %s mode from %s as pid %d ...",
 167                !server_state_foreground ? "background" : "foreground",
 168                 ConfigFileEntry.dpath, pid);
 169
 170         /* let the parent process know the initialization was successful
 171          * -- jilles */
 172         if (!server_state_foreground)
 173                 write(0, ".", 1);
 174         fclose(stdin);
 175         fclose(stdout);
 176         fclose(stderr);
 177         open("/dev/null", O_RDWR);
 178         dup2(0, 1);
 179         dup2(0, 2);
 180 }
 181
 182 static void
 183 ircd_log_cb(const char *str)
 184 {
 185         ilog(L_MAIN, "%s", str);
 186 }
 187
 188 static void
 189 ircd_restart_cb(const char *str)
 190 {
 191         restart(str);
 192 }
 193
 194 /*
 195  * Why EXIT_FAILURE here?
 196  * Because if ircd_die_cb() is called it's because of a fatal
 197  * error inside libcharybdis, and we don't know how to handle the
 198  * exception, so it is logical to return a FAILURE exit code here.
 199  *    --nenolod
 200  */
 201 static void
 202 ircd_die_cb(const char *str)
 203 {
 204         if(str != NULL)
 205         {
 206                 /* Try to get the message out to currently logged in operators. */
 207                 sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "Server panic! %s", str);
 208                 inotice("server panic: %s", str);
 209         }
 210
 211         unlink(pidFileName);
 212         exit(EXIT_FAILURE);
 213 }
 214
 215 /*
 216  * init_sys
 217  *
 218  * inputs       - boot_daemon flag
 219  * output       - none
 220  * side effects - if boot_daemon flag is not set, don't daemonize
 221  */
 222 static void
 223 init_sys(void)
 224 {
 225 #if defined(RLIMIT_NOFILE) && defined(HAVE_SYS_RESOURCE_H)
 226         struct rlimit limit;
 227
 228         if(!getrlimit(RLIMIT_NOFILE, &limit))
 229         {
 230                 maxconnections = limit.rlim_cur;
 231                 if(maxconnections <= MAX_BUFFER)
 232                 {
 233                         fprintf(stderr, "ERROR: Shell FD limits are too low.\n");
 234                         fprintf(stderr, "ERROR: ircd-ratbox reserves %d FDs, shell limits must be above this\n", MAX_BUFFER);
 235                         exit(EXIT_FAILURE);
 236                 }
 237                 return;
 238         }
 239 #endif /* RLIMIT_FD_MAX */
 240         maxconnections = MAXCONNECTIONS;
 241 }
 242
 243 static int
 244 make_daemon(void)
 245 {
 246         int pid;
 247         int pip[2];
 248         char c;
 249
 250         if (pipe(pip) < 0)
 251         {
 252                 perror("pipe");
 253                 exit(EXIT_FAILURE);
 254         }
 255         dup2(pip[1], 0);
 256         close(pip[1]);
 257         if((pid = fork()) < 0)
 258         {
 259                 perror("fork");
 260                 exit(EXIT_FAILURE);
 261         }
 262         else if(pid > 0)
 263         {
 264                 close(0);
 265                 /* Wait for initialization to finish, successfully or
 266                  * unsuccessfully. Until this point the child may still
 267                  * write to stdout/stderr.
 268                  * -- jilles */
 269                 if (read(pip[0], &c, 1) > 0)
 270                         exit(EXIT_SUCCESS);
 271                 else
 272                         exit(EXIT_FAILURE);
 273         }
 274
 275         close(pip[0]);
 276         setsid();
 277 /*      fclose(stdin);
 278         fclose(stdout);
 279         fclose(stderr); */
 280
 281         return 0;
 282 }
 283
 284 static int printVersion = 0;
 285
 286 struct lgetopt myopts[] = {
 287         {"dlinefile", &ConfigFileEntry.dlinefile,
 288          STRING, "File to use for dlines.conf"},
 289         {"configfile", &ConfigFileEntry.configfile,
 290          STRING, "File to use for ircd.conf"},
 291         {"klinefile", &ConfigFileEntry.klinefile,
 292          STRING, "File to use for kline.conf"},
 293         {"xlinefile", &ConfigFileEntry.xlinefile,
 294          STRING, "File to use for xline.conf"},
 295         {"resvfile", &ConfigFileEntry.resvfile,
 296          STRING, "File to use for resv.conf"},
 297         {"logfile", &logFileName,
 298          STRING, "File to use for ircd.log"},
 299         {"pidfile", &pidFileName,
 300          STRING, "File to use for process ID"},
 301         {"foreground", &server_state_foreground,
 302          YESNO, "Run in foreground (don't detach)"},
 303         {"version", &printVersion,
 304          YESNO, "Print version and exit"},
 305         {"conftest", &testing_conf,
 306          YESNO, "Test the configuration files and exit"},
 307         {"help", NULL, USAGE, "Print this text"},
 308         {NULL, NULL, STRING, NULL},
 309 };
 310
 311 static void
 312 check_rehash(void *unused)
 313 {
 314         /*
 315          * Check to see whether we have to rehash the configuration ..
 316          */
 317         if(dorehash)
 318         {
 319                 rehash(1);
 320                 dorehash = 0;
 321         }
 322
 323         if(dorehashbans)
 324         {
 325                 rehash_bans(1);
 326                 dorehashbans = 0;
 327         }
 328
 329         if(doremotd)
 330         {
 331                 sendto_realops_snomask(SNO_GENERAL, L_ALL,
 332                                      "Got signal SIGUSR1, reloading ircd motd file");
 333                 cache_user_motd();
 334                 doremotd = 0;
 335         }
 336 }
 337
 338 /*
 339  * initalialize_global_set_options
 340  *
 341  * inputs       - none
 342  * output       - none
 343  * side effects - This sets all global set options needed
 344  */
 345 static void
 346 initialize_global_set_options(void)
 347 {
 348         memset(&GlobalSetOptions, 0, sizeof(GlobalSetOptions));
 349         /* memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); */
 350
 351         GlobalSetOptions.maxclients = ServerInfo.default_max_clients;
 352
 353         if(GlobalSetOptions.maxclients > (maxconnections - MAX_BUFFER) || (GlobalSetOptions.maxclients <= 0))
 354                 GlobalSetOptions.maxclients = maxconnections - MAX_BUFFER;
 355
 356         GlobalSetOptions.autoconn = 1;
 357
 358         GlobalSetOptions.spam_time = MIN_JOIN_LEAVE_TIME;
 359         GlobalSetOptions.spam_num = MAX_JOIN_LEAVE_COUNT;
 360
 361         if(ConfigFileEntry.default_floodcount)
 362                 GlobalSetOptions.floodcount = ConfigFileEntry.default_floodcount;
 363         else
 364                 GlobalSetOptions.floodcount = 10;
 365
 366         split_servers = ConfigChannel.default_split_server_count;
 367         split_users = ConfigChannel.default_split_user_count;
 368
 369         if(split_users && split_servers
 370            && (ConfigChannel.no_create_on_split || ConfigChannel.no_join_on_split))
 371         {
 372                 splitmode = 1;
 373                 splitchecking = 1;
 374         }
 375
 376         GlobalSetOptions.ident_timeout = IDENT_TIMEOUT;
 377
 378         rb_strlcpy(GlobalSetOptions.operstring,
 379                 ConfigFileEntry.default_operstring,
 380                 sizeof(GlobalSetOptions.operstring));
 381         rb_strlcpy(GlobalSetOptions.adminstring,
 382                 ConfigFileEntry.default_adminstring,
 383                 sizeof(GlobalSetOptions.adminstring));
 384
 385         /* memset( &ConfigChannel, 0, sizeof(ConfigChannel)); */
 386
 387         /* End of global set options */
 388
 389 }
 390
 391 /*
 392  * initialize_server_capabs
 393  *
 394  * inputs       - none
 395  * output       - none
 396  */
 397 static void
 398 initialize_server_capabs(void)
 399 {
 400         default_server_capabs &= ~CAP_ZIP;
 401 }
 402
 403
 404 /*
 405  * write_pidfile
 406  *
 407  * inputs       - filename+path of pid file
 408  * output       - none
 409  * side effects - write the pid of the ircd to filename
 410  */
 411 static void
 412 write_pidfile(const char *filename)
 413 {
 414         FILE *fb;
 415         char buff[32];
 416         if((fb = fopen(filename, "w")))
 417         {
 418                 unsigned int pid = (unsigned int) getpid();
 419
 420                 rb_snprintf(buff, sizeof(buff), "%u\n", pid);
 421                 if((fputs(buff, fb) == -1))
 422                 {
 423                         ilog(L_MAIN, "Error writing %u to pid file %s (%s)",
 424                              pid, filename, strerror(errno));
 425                 }
 426                 fclose(fb);
 427                 return;
 428         }
 429         else
 430         {
 431                 ilog(L_MAIN, "Error opening pid file %s", filename);
 432         }
 433 }
 434
 435 /*
 436  * check_pidfile
 437  *
 438  * inputs       - filename+path of pid file
 439  * output       - none
 440  * side effects - reads pid from pidfile and checks if ircd is in process
 441  *                list. if it is, gracefully exits
 442  * -kre
 443  */
 444 static void
 445 check_pidfile(const char *filename)
 446 {
 447         FILE *fb;
 448         char buff[32];
 449         pid_t pidfromfile;
 450
 451         /* Don't do logging here, since we don't have log() initialised */
 452         if((fb = fopen(filename, "r")))
 453         {
 454                 if(fgets(buff, 20, fb) != NULL)
 455                 {
 456                         pidfromfile = atoi(buff);
 457                         if(!kill(pidfromfile, 0))
 458                         {
 459                                 printf("ircd: daemon is already running\n");
 460                                 exit(-1);
 461                         }
 462                 }
 463                 fclose(fb);
 464         }
 465 }
 466
 467 /*
 468  * setup_corefile
 469  *
 470  * inputs       - nothing
 471  * output       - nothing
 472  * side effects - setups corefile to system limits.
 473  * -kre
 474  */
 475 static void
 476 setup_corefile(void)
 477 {
 478 #ifdef HAVE_SYS_RESOURCE_H
 479         struct rlimit rlim;     /* resource limits */
 480
 481         /* Set corefilesize to maximum */
 482         if(!getrlimit(RLIMIT_CORE, &rlim))
 483         {
 484                 rlim.rlim_cur = rlim.rlim_max;
 485                 setrlimit(RLIMIT_CORE, &rlim);
 486         }
 487 #endif
 488 }
 489
 490 struct ev_entry *check_splitmode_ev = NULL;
 491
 492 static int
 493 seed_with_urandom(void)
 494 {
 495         unsigned int seed;
 496         int fd;
 497
 498         fd = open("/dev/urandom", O_RDONLY);
 499         if(fd >= 0)
 500         {
 501                 if(read(fd, &seed, sizeof(seed)) == sizeof(seed))
 502                 {
 503                         close(fd);
 504                         srand(seed);
 505                         return 1;
 506                 }
 507         }
 508         return 0;
 509 }
 510
 511 static void
 512 seed_with_clock(void)
 513 {
 514         const struct timeval *tv;
 515         rb_set_time();
 516         tv = rb_current_time_tv();
 517         srand(tv->tv_sec ^ (tv->tv_usec | (getpid() << 20)));
 518 }
 519
 520 static void
 521 seed_random(void *unused)
 522 {
 523         unsigned int seed;
 524         if(rb_get_random(&seed, sizeof(seed)) == -1)
 525         {
 526                 if(!seed_with_urandom())
 527                         seed_with_clock();
 528                 return;
 529         }
 530         srand(seed);
 531 }
 532
 533 /*
 534  * main
 535  *
 536  * Initializes the IRCd.
 537  *
 538  * Inputs       - number of commandline args, args themselves
 539  * Outputs      - none
 540  * Side Effects - this is where the ircd gets going right now
 541  */
 542 int
 543 main(int argc, char *argv[])
 544 {
 545         int fd;
 546
 547         /* Check to see if the user is running us as root, which is a nono */
 548         if(geteuid() == 0)
 549         {
 550                 fprintf(stderr, "Don't run ircd as root!!!\n");
 551                 return -1;
 552         }
 553
 554         rb_set_time();
 555
 556         /*
 557          * Setup corefile size immediately after boot -kre
 558          */
 559         setup_corefile();
 560
 561         memset(&me, 0, sizeof(me));
 562         memset(&meLocalUser, 0, sizeof(meLocalUser));
 563         me.localClient = &meLocalUser;
 564
 565         /* Make sure all lists are zeroed */
 566         memset(&unknown_list, 0, sizeof(unknown_list));
 567         memset(&lclient_list, 0, sizeof(lclient_list));
 568         memset(&serv_list, 0, sizeof(serv_list));
 569         memset(&global_serv_list, 0, sizeof(global_serv_list));
 570         memset(&local_oper_list, 0, sizeof(local_oper_list));
 571         memset(&oper_list, 0, sizeof(oper_list));
 572
 573         rb_dlinkAddTail(&me, &me.node, &global_client_list);
 574
 575         memset(&Count, 0, sizeof(Count));
 576         memset(&ServerInfo, 0, sizeof(ServerInfo));
 577         memset(&AdminInfo, 0, sizeof(AdminInfo));
 578         memset(&ServerStats, 0, sizeof(struct ServerStatistics));
 579
 580         /* Initialise the channel capability usage counts... */
 581         init_chcap_usage_counts();
 582
 583         ConfigFileEntry.dpath = DPATH;
 584         ConfigFileEntry.configfile = CPATH;     /* Server configuration file */
 585         ConfigFileEntry.klinefile = KPATH;      /* Server kline file */
 586         ConfigFileEntry.dlinefile = DLPATH;     /* dline file */
 587         ConfigFileEntry.xlinefile = XPATH;
 588         ConfigFileEntry.resvfile = RESVPATH;
 589         ConfigFileEntry.connect_timeout = 30;   /* Default to 30 */
 590         myargv = argv;
 591         umask(077);             /* better safe than sorry --SRB */
 592
 593         parseargs(&argc, &argv, myopts);
 594
 595         if(printVersion)
 596         {
 597                 printf("ircd: version %s(%s)\n", ircd_version, serno);
 598                 exit(EXIT_SUCCESS);
 599         }
 600
 601         if(chdir(ConfigFileEntry.dpath))
 602         {
 603                 fprintf(stderr, "Unable to chdir to %s: %s\n", ConfigFileEntry.dpath, strerror(errno));
 604                 exit(EXIT_FAILURE);
 605         }
 606
 607         setup_signals();
 608
 609         if (testing_conf)
 610                 server_state_foreground = 1;
 611
 612         /* Make sure fd 0, 1 and 2 are in use -- jilles */
 613         do
 614         {
 615                 fd = open("/dev/null", O_RDWR);
 616         } while (fd < 2 && fd != -1);
 617         if (fd > 2)
 618                 close(fd);
 619         else if (fd == -1)
 620                 exit(1);
 621
 622         /* Check if there is pidfile and daemon already running */
 623         if(!testing_conf)
 624         {
 625                 check_pidfile(pidFileName);
 626
 627                 if(!server_state_foreground)
 628                         make_daemon();
 629                 inotice("starting %s ...", ircd_version);
 630         }
 631
 632         /* Init the event subsystem */
 633         init_sys();
 634         rb_lib_init(ircd_log_cb, ircd_restart_cb, ircd_die_cb, !server_state_foreground, maxconnections, DNODE_HEAP_SIZE, FD_HEAP_SIZE);
 635         rb_linebuf_init(LINEBUF_HEAP_SIZE);
 636
 637         init_main_logfile();
 638         newconf_init();
 639         init_s_conf();
 640         init_s_newconf();
 641         init_hash();
 642         clear_scache_hash_table();      /* server cache name table */
 643         init_host_hash();
 644         clear_hash_parse();
 645         init_client();
 646         init_hook();
 647         init_channels();
 648         initclass();
 649         initwhowas();
 650         init_reject();
 651         init_cache();
 652         init_monitor();
 653         init_isupport();
 654         load_all_modules(1);
 655 #ifndef STATIC_MODULES
 656         load_core_modules(1);
 657 #endif
 658         init_auth();            /* Initialise the auth code */
 659         init_resolver();        /* Needs to be setup before the io loop */
 660
 661         if (testing_conf)
 662                 fprintf(stderr, "\nBeginning config test\n");
 663         read_conf_files(YES);   /* cold start init conf files */
 664         rehash_bans(0);
 665 #ifndef STATIC_MODULES
 666
 667         mod_add_path(MODULE_DIR);
 668         mod_add_path(MODULE_DIR "/autoload");
 669 #endif
 670
 671         init_ssld();
 672
 673         initialize_server_capabs();     /* Set up default_server_capabs */
 674         initialize_global_set_options();
 675
 676         if(ServerInfo.name == NULL)
 677         {
 678                 ierror("no server name specified in serverinfo block.");
 679                 return -1;
 680         }
 681         rb_strlcpy(me.name, ServerInfo.name, sizeof(me.name));
 682
 683         if(ServerInfo.sid[0] == '\0')
 684         {
 685                 ierror("no server sid specified in serverinfo block.");
 686                 return -2;
 687         }
 688         strcpy(me.id, ServerInfo.sid);
 689         init_uid();
 690
 691         /* serverinfo{} description must exist.  If not, error out. */
 692         if(ServerInfo.description == NULL)
 693         {
 694                 ierror("no server description specified in serverinfo block.");
 695                 return -3;
 696         }
 697         rb_strlcpy(me.info, ServerInfo.description, sizeof(me.info));
 698
 699         if(ServerInfo.ssl_cert != NULL && ServerInfo.ssl_private_key != NULL)
 700         {
 701                 /* just do the rb_setup_ssl_server to validate the config */
 702                 if(!rb_setup_ssl_server(ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params))
 703                 {
 704                         ilog(L_MAIN, "WARNING: Unable to setup SSL.");
 705                         ssl_ok = 0;
 706                 }
 707                 else
 708                         ssl_ok = 1;
 709         }
 710
 711         if (testing_conf)
 712         {
 713                 fprintf(stderr, "\nConfig testing complete.\n");
 714                 fflush(stderr);
 715                 return 0;       /* Why? We want the launcher to exit out. */
 716         }
 717
 718         me.from = &me;
 719         me.servptr = &me;
 720         SetMe(&me);
 721         make_server(&me);
 722         startup_time = rb_current_time();
 723         add_to_client_hash(me.name, &me);
 724         add_to_id_hash(me.id, &me);
 725         me.serv->nameinfo = scache_connect(me.name, me.info, 0);
 726
 727         rb_dlinkAddAlloc(&me, &global_serv_list);
 728
 729         construct_umodebuf();
 730         construct_noparam_modes();
 731
 732         check_class();
 733         write_pidfile(pidFileName);
 734         load_help();
 735         open_logfiles();
 736
 737         ilog(L_MAIN, "Server Ready");
 738
 739         /* We want try_connections to be called as soon as possible now! -- adrian */
 740         /* No, 'cause after a restart it would cause all sorts of nick collides */
 741         /* um.  by waiting even longer, that just means we have even *more*
 742          * nick collisions.  what a stupid idea. set an event for the IO loop --fl
 743          */
 744         rb_event_addish("try_connections", try_connections, NULL, STARTUP_CONNECTIONS_TIME);
 745         rb_event_addonce("try_connections_startup", try_connections, NULL, 2);
 746         rb_event_add("check_rehash", check_rehash, NULL, 3);
 747         rb_event_addish("reseed_srand", seed_random, NULL, 300); /* reseed every 10 minutes */
 748
 749         if(splitmode)
 750                 check_splitmode_ev = rb_event_add("check_splitmode", check_splitmode, NULL, 5);
 751
 752         print_startup(getpid());
 753
 754         rb_lib_loop(0);
 755
 756         return 0;
 757 }