trunk/src/ircd.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2021 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file ircd.c
 * \brief Starts up and runs the ircd.
 * \version $Id$
 */

#include "stdinc.h"
#include "user.h"
#include "list.h"
#include "ircd.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "event.h"
#include "fdlist.h"
#include "hash.h"
#include "id.h"
#include "irc_string.h"
#include "ircd_signal.h"
#include "motd.h"
#include "conf.h"
#include "hostmask.h"
#include "parse.h"
#include "res.h"
#include "restart.h"
#include "rng_mt.h"
#include "s_bsd.h"
#include "log.h"
#include "server.h"
#include "server_capab.h"
#include "send.h"
#include "modules.h"
#include "ircd_getopt.h"
#include "conf_db.h"
#include "conf_class.h"
#include "ipcache.h"
#include "isupport.h"
#include "patchlevel.h"
#include "extban.h"


struct SetOptions GlobalSetOptions;  /* /quote set variables */
struct Counter Count;
struct ServerState_t server_state;
struct ServerStatistics ServerStats;
struct Connection meConnection;  /* That's also part of me */
struct Client me = { .connection = &meConnection };  /* That's me */

char **myargv;
const char *logFileName = LPATH;
const char *pidFileName = PPATH;

bool dorehash;
bool doremotd;

static bool printVersion;

static struct lgetopt myopts[] =
{
  { "configfile", &ConfigGeneral.configfile,
   STRING, "File to use for ircd.conf" },
  { "klinefile",  &ConfigGeneral.klinefile,
   STRING, "File to use for kline database" },
  { "dlinefile",  &ConfigGeneral.dlinefile,
   STRING, "File to use for dline database" },
  { "xlinefile",  &ConfigGeneral.xlinefile,
   STRING, "File to use for xline database" },
  { "resvfile",   &ConfigGeneral.resvfile,
   STRING, "File to use for resv database" },
  { "logfile",    &logFileName,
   STRING, "File to use for ircd.log" },
  { "pidfile",    &pidFileName,
   STRING, "File to use for process ID" },
  { "foreground", &server_state.foreground,
   BOOLEAN, "Run in foreground (don't detach)" },
  { "version",    &printVersion,
   BOOLEAN, "Print version and exit" },
  { "help", NULL, USAGE, "Print this text" },
  { NULL, NULL, STRING, NULL },
};

static struct event event_cleanup_tklines =
{
  .name = "cleanup_tklines",
  .handler = cleanup_tklines,
  .when = CLEANUP_TKLINES_TIME
};

static struct event event_try_connections =
{
  .name = "try_connections",
  .handler = try_connections,
  .when = 15
};

static struct event event_comm_checktimeouts =
{
  .name = "comm_checktimeouts",
  .handler = comm_checktimeouts,
  .when = 1
};

static struct event event_save_all_databases =
{
  .name = "save_all_databases",
  .handler = save_all_databases,
  .when = DATABASE_UPDATE_TIMEOUT
};

struct event event_write_links_file =
{
  .name = "write_links_file",
  .handler = write_links_file,
};


static void
io_loop(void)
{
  while (true)
  {
    if (listing_client_list.head)
    {
      dlink_node *node = NULL, *node_next = NULL;
      DLINK_FOREACH_SAFE(node, node_next, listing_client_list.head)
        safe_list_channels(node->data, false);
    }

    /* Run pending events */
    event_run();

    comm_select();
    exit_aborted_clients();
    free_exited_clients();

    /* Check to see whether we have to rehash the configuration. */
    if (dorehash == true)
    {
      conf_rehash(true);
      dorehash = false;
    }

    if (doremotd == true)
    {
      motd_recache();
      sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
                           "Got signal SIGUSR1, reloading motd file(s)");
      doremotd = false;
    }
  }
}

/* initalialize_global_set_options()
 *
 * inputs       - none
 * output       - none
 * side effects - This sets all global set options needed
 */
static void
initialize_global_set_options(void)
{
  GlobalSetOptions.maxclients = ConfigServerInfo.default_max_clients;
  GlobalSetOptions.autoconn = true;
  GlobalSetOptions.spam_time = MIN_JOIN_LEAVE_TIME;
  GlobalSetOptions.spam_num = MAX_JOIN_LEAVE_COUNT;
  GlobalSetOptions.floodcount = ConfigGeneral.default_floodcount;
  GlobalSetOptions.floodtime = ConfigGeneral.default_floodtime;
  GlobalSetOptions.joinfloodcount = ConfigChannel.default_join_flood_count;
  GlobalSetOptions.joinfloodtime = ConfigChannel.default_join_flood_time;
}

/* write_pidfile()
 *
 * inputs       - filename+path of pid file
 * output       - NONE
 * side effects - write the pid of the ircd to filename
 */
static void
write_pidfile(const char *filename)
{
  FILE *fb;

  if ((fb = fopen(filename, "w")))
  {
    char buf[IRCD_BUFSIZE];
    unsigned int pid = (unsigned int)getpid();

    snprintf(buf, sizeof(buf), "%u\n", pid);

    if (fputs(buf, fb) == -1)
      ilog(LOG_TYPE_IRCD, "Error writing to pid file %s: %s",
           filename, strerror(errno));

    fclose(fb);
  }
  else
    ilog(LOG_TYPE_IRCD, "Error opening pid file %s: %s",
         filename, strerror(errno));
}

/* check_pidfile()
 *
 * inputs       - filename+path of pid file
 * output       - none
 * side effects - reads pid from pidfile and checks if ircd is in process
 *                list. if it is, gracefully exits
 * -kre
 */
static void
check_pidfile(const char *filename)
{
  FILE *fb;
  char buf[IRCD_BUFSIZE];

  if ((fb = fopen(filename, "r")))
  {
    if (fgets(buf, 20, fb) == NULL)
      ilog(LOG_TYPE_IRCD, "Error reading from pid file %s: %s",
           filename, strerror(errno));
    else
    {
      pid_t pid = atoi(buf);

      if (kill(pid, 0) == 0)
      {
        /* log(L_ERROR, "Server is already running"); */
        printf("ircd: daemon is already running\n");
        exit(EXIT_FAILURE);
      }
    }

    fclose(fb);
  }
  else if (errno != ENOENT)
    ilog(LOG_TYPE_IRCD, "Error opening pid file %s: %s",
         filename, strerror(errno));
}

/* setup_corefile()
 *
 * inputs       - nothing
 * output       - nothing
 * side effects - setups corefile to system limits.
 * -kre
 */
static void
setup_corefile(void)
{
  struct rlimit rlim; /* resource limits */

  /* Set corefilesize to maximum */
  if (getrlimit(RLIMIT_CORE, &rlim) == 0)
  {
    rlim.rlim_cur = rlim.rlim_max;
    setrlimit(RLIMIT_CORE, &rlim);
  }
}

static void
setup_fdlimit(void)
{
  struct rlimit rlim; /* resource limits */

  if (getrlimit(RLIMIT_NOFILE, &rlim))
  {
    fprintf(stderr, "getrlimit: couldn't get maximum number of file descriptors: %s\n",
            strerror(errno));
    exit(EXIT_FAILURE);
  }

#ifdef __APPLE__
  if (rlim.rlim_max > OPEN_MAX)
    rlim.rlim_max = OPEN_MAX;
#endif
  if (rlim.rlim_max > 0xFFFF)
    rlim.rlim_max = 0xFFFF;
  rlim.rlim_cur = rlim.rlim_max;

  if (setrlimit(RLIMIT_NOFILE, &rlim) == 0)
    hard_fdlimit = rlim.rlim_cur;
  else
  {
    fprintf(stderr, "setrlimit: couldn't set maximum number of file descriptors: %s\n",
            strerror(errno));
    exit(EXIT_FAILURE);
  }
}

/*
 * print_startup - print startup information
 */
static void
print_startup(int pid)
{
  printf("ircd: version %s\n", PATCHLEVEL);
  printf("ircd: pid %d\n", pid);
  printf("ircd: running in %s mode from %s\n", !server_state.foreground ? "background"
         : "foreground", ConfigGeneral.dpath);
}

static void
make_daemon(void)
{
  int pid = fork();

  if (pid < 0)
  {
    perror("fork");
    exit(EXIT_FAILURE);
  }
  else if (pid > 0)
  {
    print_startup(pid);
    exit(EXIT_SUCCESS);
  }

  setsid();
}

int
main(int argc, char *argv[])
{
  /* Check to see if the user is running us as root, which is a nono */
  if (geteuid() == 0)
  {
    fprintf(stderr, "ERROR: This server won't run as root/superuser\n");
    return -1;
  }

  /* Setup corefile size immediately after boot -kre */
  setup_corefile();

  setup_fdlimit();

  /* Save server boot time right away, so getrusage works correctly */
  event_time_set();

  /* It's not random, but it ought to be a little harder to guess */
  uint32_t seed = (uint32_t)(event_base->time.sec_real ^
                             (event_base->time.sec_monotonic | (getpid() << 16)));
  init_genrand(seed);

  ConfigGeneral.dpath      = DPATH;
  ConfigGeneral.spath      = SPATH;
  ConfigGeneral.mpath      = MPATH;
  ConfigGeneral.configfile = CPATH;    /* Server configuration file */
  ConfigGeneral.klinefile  = KPATH;    /* Server kline file         */
  ConfigGeneral.xlinefile  = XPATH;    /* Server xline file         */
  ConfigGeneral.dlinefile  = DLPATH;   /* dline file                */
  ConfigGeneral.resvfile   = RESVPATH; /* resv file                 */

  myargv = argv;
  umask(077);  /* umask 077: u=rwx,g=,o= */

  parseargs(&argc, &argv, myopts);

  if (printVersion == true)
  {
    printf("ircd: version %s\n", PATCHLEVEL);
    exit(EXIT_SUCCESS);
  }

  if (chdir(ConfigGeneral.dpath))
  {
    perror("chdir");
    exit(EXIT_FAILURE);
  }

  if (server_state.foreground == false)
  {
    make_daemon();
    close_standard_fds(); /* this needs to be before comm_select_init()! */
  }
  else
    print_startup(getpid());

  setup_signals();

  /* We need this to initialise the fd array before anything else */
  fdlist_init();
  log_set_file(LOG_TYPE_IRCD, 0, logFileName);

  comm_select_init();  /* This needs to be setup early ! -- adrian */
  tls_init();

  /* Check if there is pidfile and daemon already running */
  check_pidfile(pidFileName);

  isupport_init();
  ipcache_init();
  client_init();
  class_init();
  resolver_init();      /* Needs to be setup before the io loop */
  modules_init();
  conf_read_files(true);   /* cold start init conf files */
  capab_init();  /* Set up default_server_capabs */
  initialize_global_set_options();  /* Has to be called after conf_read_files() */
  channel_mode_init();
  extban_init();
  read_links_file();
  motd_init();
  user_modes_init();

  if (EmptyString(ConfigServerInfo.name))
  {
    ilog(LOG_TYPE_IRCD, "ERROR: No server name specified in serverinfo block.");
    exit(EXIT_FAILURE);
  }

  strlcpy(me.name, ConfigServerInfo.name, sizeof(me.name));

  /* serverinfo {} description must exist.  If not, error out.*/
  if (EmptyString(ConfigServerInfo.description))
  {
    ilog(LOG_TYPE_IRCD, "ERROR: No server description specified in serverinfo block.");
    exit(EXIT_FAILURE);
  }

  strlcpy(me.info, ConfigServerInfo.description, sizeof(me.info));

  if (EmptyString(ConfigServerInfo.sid))
  {
    ilog(LOG_TYPE_IRCD, "Generating server ID");
    generate_sid();
  }
  else
    strlcpy(me.id, ConfigServerInfo.sid, sizeof(me.id));

  init_uid();

  me.from = &me;
  me.servptr = &me;
  me.connection->created_real = event_base->time.sec_real;
  me.connection->created_monotonic = event_base->time.sec_monotonic;

  SetMe(&me);
  server_make(&me);

  hash_add_id(&me);
  hash_add_client(&me);

  dlinkAdd(&me, &me.node, &global_server_list);

  load_kline_database(ConfigGeneral.klinefile);
  load_dline_database(ConfigGeneral.dlinefile);
  load_xline_database(ConfigGeneral.xlinefile);
  load_resv_database(ConfigGeneral.resvfile);

  load_all_modules(true);
  load_conf_modules();
  load_core_modules(true);

  write_pidfile(pidFileName);

  event_addish(&event_cleanup_tklines, NULL);

  /* We want try_connections to be called as soon as possible now! -- adrian */
  /* No, 'cause after a restart it would cause all sorts of nick collides */
  event_addish(&event_try_connections, NULL);

  /* Setup the timeout check. I'll shift it later :)  -- adrian */
  event_add(&event_comm_checktimeouts, NULL);

  event_addish(&event_save_all_databases, NULL);

  if (ConfigServerHide.flatten_links_delay && event_write_links_file.active == false)
  {
    event_write_links_file.when = ConfigServerHide.flatten_links_delay;
    event_add(&event_write_links_file, NULL);
  }

  ilog(LOG_TYPE_IRCD, "Server ready. Running version: %s", PATCHLEVEL);
  io_loop();

  return 0;
}
Revision:	9857
Committed:	Fri Jan 1 04:43:22 2021 UTC (4 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	12536 byte(s)
Log Message:	- Bump copyright years
#	Content
1	/*
2	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	*
4	* Copyright (c) 1997-2021 ircd-hybrid development team
5	*
6	* This program 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 this program; if not, write to the Free Software
18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	* USA
20	*/
21
22	/*! \file ircd.c
23	* \brief Starts up and runs the ircd.
24	* \version $Id$
25	*/
26
27	#include "stdinc.h"
28	#include "user.h"
29	#include "list.h"
30	#include "ircd.h"
31	#include "channel.h"
32	#include "channel_mode.h"
33	#include "client.h"
34	#include "event.h"
35	#include "fdlist.h"
36	#include "hash.h"
37	#include "id.h"
38	#include "irc_string.h"
39	#include "ircd_signal.h"
40	#include "motd.h"
41	#include "conf.h"
42	#include "hostmask.h"
43	#include "parse.h"
44	#include "res.h"
45	#include "restart.h"
46	#include "rng_mt.h"
47	#include "s_bsd.h"
48	#include "log.h"
49	#include "server.h"
50	#include "server_capab.h"
51	#include "send.h"
52	#include "modules.h"
53	#include "ircd_getopt.h"
54	#include "conf_db.h"
55	#include "conf_class.h"
56	#include "ipcache.h"
57	#include "isupport.h"
58	#include "patchlevel.h"
59	#include "extban.h"
60
61
62	struct SetOptions GlobalSetOptions; /* /quote set variables */
63	struct Counter Count;
64	struct ServerState_t server_state;
65	struct ServerStatistics ServerStats;
66	struct Connection meConnection; /* That's also part of me */
67	struct Client me = { .connection = &meConnection }; /* That's me */
68
69	char **myargv;
70	const char *logFileName = LPATH;
71	const char *pidFileName = PPATH;
72
73	bool dorehash;
74	bool doremotd;
75
76	static bool printVersion;
77
78	static struct lgetopt myopts[] =
79	{
80	{ "configfile", &ConfigGeneral.configfile,
81	STRING, "File to use for ircd.conf" },
82	{ "klinefile", &ConfigGeneral.klinefile,
83	STRING, "File to use for kline database" },
84	{ "dlinefile", &ConfigGeneral.dlinefile,
85	STRING, "File to use for dline database" },
86	{ "xlinefile", &ConfigGeneral.xlinefile,
87	STRING, "File to use for xline database" },
88	{ "resvfile", &ConfigGeneral.resvfile,
89	STRING, "File to use for resv database" },
90	{ "logfile", &logFileName,
91	STRING, "File to use for ircd.log" },
92	{ "pidfile", &pidFileName,
93	STRING, "File to use for process ID" },
94	{ "foreground", &server_state.foreground,
95	BOOLEAN, "Run in foreground (don't detach)" },
96	{ "version", &printVersion,
97	BOOLEAN, "Print version and exit" },
98	{ "help", NULL, USAGE, "Print this text" },
99	{ NULL, NULL, STRING, NULL },
100	};
101
102	static struct event event_cleanup_tklines =
103	{
104	.name = "cleanup_tklines",
105	.handler = cleanup_tklines,
106	.when = CLEANUP_TKLINES_TIME
107	};
108
109	static struct event event_try_connections =
110	{
111	.name = "try_connections",
112	.handler = try_connections,
113	.when = 15
114	};
115
116	static struct event event_comm_checktimeouts =
117	{
118	.name = "comm_checktimeouts",
119	.handler = comm_checktimeouts,
120	.when = 1
121	};
122
123	static struct event event_save_all_databases =
124	{
125	.name = "save_all_databases",
126	.handler = save_all_databases,
127	.when = DATABASE_UPDATE_TIMEOUT
128	};
129
130	struct event event_write_links_file =
131	{
132	.name = "write_links_file",
133	.handler = write_links_file,
134	};
135
136
137	static void
138	io_loop(void)
139	{
140	while (true)
141	{
142	if (listing_client_list.head)
143	{
144	dlink_node node = NULL, node_next = NULL;
145	DLINK_FOREACH_SAFE(node, node_next, listing_client_list.head)
146	safe_list_channels(node->data, false);
147	}
148
149	/* Run pending events */
150	event_run();
151
152	comm_select();
153	exit_aborted_clients();
154	free_exited_clients();
155
156	/* Check to see whether we have to rehash the configuration. */
157	if (dorehash == true)
158	{
159	conf_rehash(true);
160	dorehash = false;
161	}
162
163	if (doremotd == true)
164	{
165	motd_recache();
166	sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
167	"Got signal SIGUSR1, reloading motd file(s)");
168	doremotd = false;
169	}
170	}
171	}
172
173	/* initalialize_global_set_options()
174	*
175	* inputs - none
176	* output - none
177	* side effects - This sets all global set options needed
178	*/
179	static void
180	initialize_global_set_options(void)
181	{
182	GlobalSetOptions.maxclients = ConfigServerInfo.default_max_clients;
183	GlobalSetOptions.autoconn = true;
184	GlobalSetOptions.spam_time = MIN_JOIN_LEAVE_TIME;
185	GlobalSetOptions.spam_num = MAX_JOIN_LEAVE_COUNT;
186	GlobalSetOptions.floodcount = ConfigGeneral.default_floodcount;
187	GlobalSetOptions.floodtime = ConfigGeneral.default_floodtime;
188	GlobalSetOptions.joinfloodcount = ConfigChannel.default_join_flood_count;
189	GlobalSetOptions.joinfloodtime = ConfigChannel.default_join_flood_time;
190	}
191
192	/* write_pidfile()
193	*
194	* inputs - filename+path of pid file
195	* output - NONE
196	* side effects - write the pid of the ircd to filename
197	*/
198	static void
199	write_pidfile(const char *filename)
200	{
201	FILE *fb;
202
203	if ((fb = fopen(filename, "w")))
204	{
205	char buf[IRCD_BUFSIZE];
206	unsigned int pid = (unsigned int)getpid();
207
208	snprintf(buf, sizeof(buf), "%u\n", pid);
209
210	if (fputs(buf, fb) == -1)
211	ilog(LOG_TYPE_IRCD, "Error writing to pid file %s: %s",
212	filename, strerror(errno));
213
214	fclose(fb);
215	}
216	else
217	ilog(LOG_TYPE_IRCD, "Error opening pid file %s: %s",
218	filename, strerror(errno));
219	}
220
221	/* check_pidfile()
222	*
223	* inputs - filename+path of pid file
224	* output - none
225	* side effects - reads pid from pidfile and checks if ircd is in process
226	* list. if it is, gracefully exits
227	* -kre
228	*/
229	static void
230	check_pidfile(const char *filename)
231	{
232	FILE *fb;
233	char buf[IRCD_BUFSIZE];
234
235	if ((fb = fopen(filename, "r")))
236	{
237	if (fgets(buf, 20, fb) == NULL)
238	ilog(LOG_TYPE_IRCD, "Error reading from pid file %s: %s",
239	filename, strerror(errno));
240	else
241	{
242	pid_t pid = atoi(buf);
243
244	if (kill(pid, 0) == 0)
245	{
246	/* log(L_ERROR, "Server is already running"); */
247	printf("ircd: daemon is already running\n");
248	exit(EXIT_FAILURE);
249	}
250	}
251
252	fclose(fb);
253	}
254	else if (errno != ENOENT)
255	ilog(LOG_TYPE_IRCD, "Error opening pid file %s: %s",
256	filename, strerror(errno));
257	}
258
259	/* setup_corefile()
260	*
261	* inputs - nothing
262	* output - nothing
263	* side effects - setups corefile to system limits.
264	* -kre
265	*/
266	static void
267	setup_corefile(void)
268	{
269	struct rlimit rlim; /* resource limits */
270
271	/* Set corefilesize to maximum */
272	if (getrlimit(RLIMIT_CORE, &rlim) == 0)
273	{
274	rlim.rlim_cur = rlim.rlim_max;
275	setrlimit(RLIMIT_CORE, &rlim);
276	}
277	}
278
279	static void
280	setup_fdlimit(void)
281	{
282	struct rlimit rlim; /* resource limits */
283
284	if (getrlimit(RLIMIT_NOFILE, &rlim))
285	{
286	fprintf(stderr, "getrlimit: couldn't get maximum number of file descriptors: %s\n",
287	strerror(errno));
288	exit(EXIT_FAILURE);
289	}
290
291	#ifdef __APPLE__
292	if (rlim.rlim_max > OPEN_MAX)
293	rlim.rlim_max = OPEN_MAX;
294	#endif
295	if (rlim.rlim_max > 0xFFFF)
296	rlim.rlim_max = 0xFFFF;
297	rlim.rlim_cur = rlim.rlim_max;
298
299	if (setrlimit(RLIMIT_NOFILE, &rlim) == 0)
300	hard_fdlimit = rlim.rlim_cur;
301	else
302	{
303	fprintf(stderr, "setrlimit: couldn't set maximum number of file descriptors: %s\n",
304	strerror(errno));
305	exit(EXIT_FAILURE);
306	}
307	}
308
309	/*
310	* print_startup - print startup information
311	*/
312	static void
313	print_startup(int pid)
314	{
315	printf("ircd: version %s\n", PATCHLEVEL);
316	printf("ircd: pid %d\n", pid);
317	printf("ircd: running in %s mode from %s\n", !server_state.foreground ? "background"
318	: "foreground", ConfigGeneral.dpath);
319	}
320
321	static void
322	make_daemon(void)
323	{
324	int pid = fork();
325
326	if (pid < 0)
327	{
328	perror("fork");
329	exit(EXIT_FAILURE);
330	}
331	else if (pid > 0)
332	{
333	print_startup(pid);
334	exit(EXIT_SUCCESS);
335	}
336
337	setsid();
338	}
339
340	int
341	main(int argc, char *argv[])
342	{
343	/* Check to see if the user is running us as root, which is a nono */
344	if (geteuid() == 0)
345	{
346	fprintf(stderr, "ERROR: This server won't run as root/superuser\n");
347	return -1;
348	}
349
350	/* Setup corefile size immediately after boot -kre */
351	setup_corefile();
352
353	setup_fdlimit();
354
355	/* Save server boot time right away, so getrusage works correctly */
356	event_time_set();
357
358	/* It's not random, but it ought to be a little harder to guess */
359	uint32_t seed = (uint32_t)(event_base->time.sec_real ^
360	(event_base->time.sec_monotonic \| (getpid() << 16)));
361	init_genrand(seed);
362
363	ConfigGeneral.dpath = DPATH;
364	ConfigGeneral.spath = SPATH;
365	ConfigGeneral.mpath = MPATH;
366	ConfigGeneral.configfile = CPATH; /* Server configuration file */
367	ConfigGeneral.klinefile = KPATH; /* Server kline file */
368	ConfigGeneral.xlinefile = XPATH; /* Server xline file */
369	ConfigGeneral.dlinefile = DLPATH; /* dline file */
370	ConfigGeneral.resvfile = RESVPATH; /* resv file */
371
372	myargv = argv;
373	umask(077); /* umask 077: u=rwx,g=,o= */
374
375	parseargs(&argc, &argv, myopts);
376
377	if (printVersion == true)
378	{
379	printf("ircd: version %s\n", PATCHLEVEL);
380	exit(EXIT_SUCCESS);
381	}
382
383	if (chdir(ConfigGeneral.dpath))
384	{
385	perror("chdir");
386	exit(EXIT_FAILURE);
387	}
388
389	if (server_state.foreground == false)
390	{
391	make_daemon();
392	close_standard_fds(); /* this needs to be before comm_select_init()! */
393	}
394	else
395	print_startup(getpid());
396
397	setup_signals();
398
399	/* We need this to initialise the fd array before anything else */
400	fdlist_init();
401	log_set_file(LOG_TYPE_IRCD, 0, logFileName);
402
403	comm_select_init(); /* This needs to be setup early ! -- adrian */
404	tls_init();
405
406	/* Check if there is pidfile and daemon already running */
407	check_pidfile(pidFileName);
408
409	isupport_init();
410	ipcache_init();
411	client_init();
412	class_init();
413	resolver_init(); /* Needs to be setup before the io loop */
414	modules_init();
415	conf_read_files(true); /* cold start init conf files */
416	capab_init(); /* Set up default_server_capabs */
417	initialize_global_set_options(); /* Has to be called after conf_read_files() */
418	channel_mode_init();
419	extban_init();
420	read_links_file();
421	motd_init();
422	user_modes_init();
423
424	if (EmptyString(ConfigServerInfo.name))
425	{
426	ilog(LOG_TYPE_IRCD, "ERROR: No server name specified in serverinfo block.");
427	exit(EXIT_FAILURE);
428	}
429
430	strlcpy(me.name, ConfigServerInfo.name, sizeof(me.name));
431
432	/* serverinfo {} description must exist. If not, error out.*/
433	if (EmptyString(ConfigServerInfo.description))
434	{
435	ilog(LOG_TYPE_IRCD, "ERROR: No server description specified in serverinfo block.");
436	exit(EXIT_FAILURE);
437	}
438
439	strlcpy(me.info, ConfigServerInfo.description, sizeof(me.info));
440
441	if (EmptyString(ConfigServerInfo.sid))
442	{
443	ilog(LOG_TYPE_IRCD, "Generating server ID");
444	generate_sid();
445	}
446	else
447	strlcpy(me.id, ConfigServerInfo.sid, sizeof(me.id));
448
449	init_uid();
450
451	me.from = &me;
452	me.servptr = &me;
453	me.connection->created_real = event_base->time.sec_real;
454	me.connection->created_monotonic = event_base->time.sec_monotonic;
455
456	SetMe(&me);
457	server_make(&me);
458
459	hash_add_id(&me);
460	hash_add_client(&me);
461
462	dlinkAdd(&me, &me.node, &global_server_list);
463
464	load_kline_database(ConfigGeneral.klinefile);
465	load_dline_database(ConfigGeneral.dlinefile);
466	load_xline_database(ConfigGeneral.xlinefile);
467	load_resv_database(ConfigGeneral.resvfile);
468
469	load_all_modules(true);
470	load_conf_modules();
471	load_core_modules(true);
472
473	write_pidfile(pidFileName);
474
475	event_addish(&event_cleanup_tklines, NULL);
476
477	/* We want try_connections to be called as soon as possible now! -- adrian */
478	/* No, 'cause after a restart it would cause all sorts of nick collides */
479	event_addish(&event_try_connections, NULL);
480
481	/* Setup the timeout check. I'll shift it later :) -- adrian */
482	event_add(&event_comm_checktimeouts, NULL);
483
484	event_addish(&event_save_all_databases, NULL);
485
486	if (ConfigServerHide.flatten_links_delay && event_write_links_file.active == false)
487	{
488	event_write_links_file.when = ConfigServerHide.flatten_links_delay;
489	event_add(&event_write_links_file, NULL);
490	}
491
492	ilog(LOG_TYPE_IRCD, "Server ready. Running version: %s", PATCHLEVEL);
493	io_loop();
494
495	return 0;
496	}