ermyth/src/main.C

/*
 * main.C: Initialisation routine.
 *
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in COPYING.
 *
 *
 * Portions of this file were derived from sources bearing the following license:
 * Rights to this code are documented in doc/pod/license.pod.
 * Copyright © 2005-2007 Atheme Project (http://www.atheme.org)           
 */

static char const rcsid[] = "$Id: main.C,v 1.8 2007-09-09 20:05:52 pippijn Exp $";

#include "atheme.h"
#include "servers.h"
#include <ermyth/database.h>
#include <ermyth/module.h>
#include <account/kline.h>
#include <account/myuser.h>
#include <account/mynick.h>
#include <account/mychan.h>
#include "account.h"            // XXX: expire_check
#include "uplink.h"
#include "internal.h"
#include "datastream.h"
#include "authcookie.h"
#include "connection.h"
#include "confparse.h"
#include <ermyth/shstr.h>
#include <common/random.h>

/* *INDENT-OFF* */
static void
print_help (void)
{
  printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n\n"
          "-c <file>    Specify the config file\n"
          "-d           Start in debugging mode\n"
          "-h           Print this message and exit\n"
          "-l <file>    Specify the log file\n"
          "-n           Don't fork into the background (log screen + log file)\n"
          "-p <file>    Specify the pid file (will be overwritten)\n"
          "-v           Print version information and exit\n", me.execname);
}

static void
print_version (void)
{
  printf ("Ermyth IRC Services (" PACKAGE_NAME "-%s)\n"
          "Compiled %s, build %s\n\n"
          "Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team\n"
          "Copyright © 2005-2007 Atheme Development Group\n"
          "Rights to this code are documented in doc/pod/license.pod.\n",
          version, creation, generation);
}
/* *INDENT-ON* */

static void
db_save (void *)
{
  backend->save ();
}

int
main (int argc, char *argv[], char *envp[])
{
  bool have_conf = false;
  bool have_log = false;
  char buf[32];
  int i, pid, r;
  FILE *pid_file;
  char const *pidfilename = RUNDIR "/" PACKAGE_NAME ".pid";
#ifdef HAVE_GETRLIMIT
  struct rlimit rlim;
#endif
  curr_uplink = NULL;
  me.argc = argc;
  me.argv = argv;
  me.execname = argv[0];

  /* Prepare gettext */
#ifdef ENABLE_NLS
  setlocale (LC_ALL, "");
  bindtextdomain (PACKAGE_NAME, LOCALEDIR);
  textdomain (PACKAGE_NAME);
#endif

  // set up shstr buckets
  std::vector<shentry *> *shstr_buckets = new std::vector<shentry *> [shstr::bucketcnt ()];
  shstr::initbuckets (shstr_buckets);

  /* change to our local directory */
  if (chdir (PREFIX) < 0)
    {
      perror (PREFIX);
      return 20;
    }

#ifdef HAVE_GETRLIMIT
  /* it appears certian systems *ahem*linux*ahem*
   * don't dump cores by default, so we do this here.
   */
  if (!getrlimit (RLIMIT_CORE, &rlim))
    {
      rlim.rlim_cur = rlim.rlim_max;
      setrlimit (RLIMIT_CORE, &rlim);
    }
#endif

  /* do command-line options */
  while ((r = getopt (argc, argv, "c:dhl:np:v")) != -1)
    {
      switch (r)
        {
        case 'c':
          config_file = sstrdup (optarg);
          have_conf = true;
          break;
        case 'd':
          log_force = true;
          break;
        case 'h':
          print_help ();
          exit (EXIT_SUCCESS);
          break;
        case 'l':
          log_path = sstrdup (optarg);
          have_log = true;
          break;
        case 'n':
          runflags |= RF_LIVE;
          break;
        case 'p':
          pidfilename = optarg;
          break;
        case 'v':
          print_version ();
          exit (EXIT_SUCCESS);
          break;
        default:
          printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n", me.execname);
          exit (EXIT_SUCCESS);
          break;
        }
    }

  if (have_conf == false)
    config_file = sstrdup (SYSCONFDIR "/" PACKAGE_NAME ".conf");

  if (have_log == false)
    log_path = sstrdup (LOGDIR "/" PACKAGE_NAME ".log");

  cold_start = true;

  runflags |= RF_STARTING;

  me.start = time_t (now ());
  NOW = me.start;
  init_gen_rand (NOW);
  srand (gen_rand32 ());
  me.execname = argv[0];

  /* set signal handlers */
  init_signal_handlers ();

  /* open log */
  log_open ();
  
  printf ("%s: version " PACKAGE_NAME "-%s\n", me.execname, version);
  
  /* check for pid file */
  if ((pid_file = fopen (pidfilename, "r")))
    {
      if (fgets (buf, 32, pid_file))
        {
          pid = atoi (buf);
          
          if (!kill (pid, 0))
            {
              fprintf (stderr, "%s: daemon is already running\n", me.execname);
              exit (EXIT_FAILURE);
            }
        }
      
      fclose (pid_file);
    }
  
#if HAVE_UMASK
  /* file creation mask */
  umask (077);
#endif
  
  event_init ();
  init_dlink_nodes ();
  init_netio ();
  init_socket_queues ();
  
  init_nodes ();
  init_newconf ();
  servtree_init ();
  init_ircpacket ();
  
  conf_init ();
  if (!conf_parse (config_file))
    {
      slog (LG_ERROR, "Error loading config file %s, aborting", config_file);
      exit (EXIT_FAILURE);
    }
  
  authcookie_init ();
  common_ctcp_init ();
  update_chanacs_flags ();
  
  if (!database::handler::loaded)
    {
      fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
      exit (EXIT_FAILURE);
    }
  
  /* check our config file */
  if (!conf_check ())
    exit (EXIT_FAILURE);
  
  /* we've done the critical startup steps now */
  cold_start = false;
  
  /* load our db */
  if (database::handler::loaded)
    backend->load ();
  else
    {
      /* XXX: We should have bailed by now! --nenolod */
      fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
      exit (EXIT_FAILURE);
    }
  db_check ();
  
#ifdef HAVE_FORK
  /* fork into the background */
  if (!(runflags & RF_LIVE))
    {
      close (0);
      if (open ("/dev/null", O_RDWR) != 0)
        {
          fprintf (stderr, "%s: unable to open /dev/null??\n", me.execname);
          exit (EXIT_FAILURE);
        }
      if ((i = fork ()) < 0)
        {
          fprintf (stderr, "%s: can't fork into the background\n", me.execname);
          exit (EXIT_FAILURE);
        }
      
      /* parent */
      else if (i != 0)
        {
          printf ("%s: pid %d\n", me.execname, i);
          printf ("%s: running in background mode from " PREFIX "\n", me.execname);
          exit (EXIT_SUCCESS);
        }
      
      /* parent is gone, just us now */
      if (setsid () < 0)
        {
          fprintf (stderr, "%s: unable to create new session\n", me.execname);
          exit (EXIT_FAILURE);
        }
      dup2 (0, 1);
      dup2 (0, 2);
    }
  else
    {
      printf ("%s: pid %d\n", me.execname, getpid ());
      printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
    }
#else
  printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
#endif
  
#ifdef HAVE_GETPID
  /* write pid */
  if ((pid_file = fopen (pidfilename, "w")))
    {
      fprintf (pid_file, "%d\n", getpid ());
      fclose (pid_file);
    }
  else
    {
      fprintf (stderr, "%s: unable to write pid file\n", me.execname);
      exit (EXIT_FAILURE);
    }
#endif
  /* no longer starting */
  runflags &= ~RF_STARTING;
  
  /* we probably have a few open already... */
  me.maxfd = 3;
  
  /* DB commit interval is configurable */
  event_add ("db_save", db_save, NULL, config_options.commit_interval);
  
  /* check expires every hour */
  event_add ("expire_check", expire_check, NULL, 3600);
  
  /* check kline expires every minute */
  event_add ("kline_t::expire", kline_t::expire, NULL, 60);
  
  /* check authcookie expires every ten minutes */
  event_add ("authcookie_expire", authcookie_expire, NULL, 600);
  
  me.connected = false;
  uplink_connect ();

  /* main loop */
  io_loop ();
  
  /* we're shutting down */
  backend->save ();
  if (chansvs.me != NULL && chansvs.me->me != NULL)
    phandler->quit_sts (chansvs.me->me, "shutting down");
  
  remove (pidfilename);
  errno = 0;
  if (curr_uplink != NULL && curr_uplink->conn != NULL)
    sendq_flush (curr_uplink->conn);
  connection_t::close_all ();

  me.connected = false;
  
  /* should we restart? */
  if (runflags & RF_RESTART)
    {
      slog (LG_INFO, "main(): restarting");

#ifdef HAVE_EXECVE
      execve (me.execname, argv, envp);
#endif
    }
  
  slog (LG_INFO, "main(): shutting down");

  /* free used memory */
  shstr::cleanup ();
  modules::cleanup ();
  myuser_t::cleanup (); // XXX: this currently breaks and I don't know why
  mynick_t::cleanup ();
  mychan_t::cleanup ();
  delete phandler;
  deinit_conf ();
  server_delete (me.me, true);
  
  log_shutdown ();

  return 0;
}
Revision:	1.9
Committed:	Sun Sep 16 18:54:45 2007 UTC (19 years, 1 month ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+8 -1 lines
Log Message:	#defines to enum
#	User	Rev	Content
1	pippijn	1.1	/*
2			* main.C: Initialisation routine.
3	pippijn	1.9	*
4			* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
5			* Rights to this code are as documented in COPYING.
6			*
7			*
8			* Portions of this file were derived from sources bearing the following license:
9	pippijn	1.2	* Rights to this code are documented in doc/pod/license.pod.
10	pippijn	1.9	* Copyright © 2005-2007 Atheme Project (http://www.atheme.org)
11	pippijn	1.1	*/
12
13	pippijn	1.9	static char const rcsid[] = "$Id: main.C,v 1.8 2007-09-09 20:05:52 pippijn Exp $";
14	pippijn	1.1
15			#include "atheme.h"
16	pippijn	1.8	#include "servers.h"
17	pippijn	1.5	#include <ermyth/database.h>
18			#include <ermyth/module.h>
19	pippijn	1.1	#include <account/kline.h>
20	pippijn	1.5	#include <account/myuser.h>
21			#include <account/mynick.h>
22			#include <account/mychan.h>
23			#include "account.h" // XXX: expire_check
24	pippijn	1.1	#include "uplink.h"
25			#include "internal.h"
26			#include "datastream.h"
27			#include "authcookie.h"
28			#include "connection.h"
29			#include "confparse.h"
30	pippijn	1.5	#include <ermyth/shstr.h>
31			#include <common/random.h>
32
33	pippijn	1.1	/* INDENT-OFF */
34			static void
35			print_help (void)
36			{
37			printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n\n"
38			"-c <file> Specify the config file\n"
39			"-d Start in debugging mode\n"
40			"-h Print this message and exit\n"
41			"-l <file> Specify the log file\n"
42			"-n Don't fork into the background (log screen + log file)\n"
43			"-p <file> Specify the pid file (will be overwritten)\n"
44			"-v Print version information and exit\n", me.execname);
45			}
46
47			static void
48			print_version (void)
49			{
50			printf ("Ermyth IRC Services (" PACKAGE_NAME "-%s)\n"
51			"Compiled %s, build %s\n\n"
52			"Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team\n"
53			"Copyright © 2005-2007 Atheme Development Group\n"
54	pippijn	1.2	"Rights to this code are documented in doc/pod/license.pod.\n",
55	pippijn	1.1	version, creation, generation);
56			}
57			/* INDENT-ON */
58
59			static void
60	pippijn	1.5	db_save (void *)
61	pippijn	1.1	{
62	pippijn	1.5	backend->save ();
63	pippijn	1.1	}
64
65			int
66	pippijn	1.4	main (int argc, char argv[], char envp[])
67	pippijn	1.1	{
68			bool have_conf = false;
69			bool have_log = false;
70			char buf[32];
71			int i, pid, r;
72			FILE *pid_file;
73	pippijn	1.5	char const *pidfilename = RUNDIR "/" PACKAGE_NAME ".pid";
74	pippijn	1.1	#ifdef HAVE_GETRLIMIT
75			struct rlimit rlim;
76			#endif
77			curr_uplink = NULL;
78			me.argc = argc;
79			me.argv = argv;
80			me.execname = argv[0];
81
82			/* Prepare gettext */
83			#ifdef ENABLE_NLS
84			setlocale (LC_ALL, "");
85			bindtextdomain (PACKAGE_NAME, LOCALEDIR);
86			textdomain (PACKAGE_NAME);
87			#endif
88
89	pippijn	1.5	// set up shstr buckets
90			std::vector<shentry > shstr_buckets = new std::vector<shentry *> [shstr::bucketcnt ()];
91			shstr::initbuckets (shstr_buckets);
92
93	pippijn	1.1	/* change to our local directory */
94			if (chdir (PREFIX) < 0)
95			{
96			perror (PREFIX);
97			return 20;
98			}
99
100			#ifdef HAVE_GETRLIMIT
101			/* it appears certian systems ahemlinuxahem
102			* don't dump cores by default, so we do this here.
103			*/
104			if (!getrlimit (RLIMIT_CORE, &rlim))
105			{
106			rlim.rlim_cur = rlim.rlim_max;
107			setrlimit (RLIMIT_CORE, &rlim);
108			}
109			#endif
110
111			/* do command-line options */
112			while ((r = getopt (argc, argv, "c:dhl:np:v")) != -1)
113			{
114			switch (r)
115			{
116			case 'c':
117			config_file = sstrdup (optarg);
118			have_conf = true;
119			break;
120			case 'd':
121			log_force = true;
122			break;
123			case 'h':
124			print_help ();
125			exit (EXIT_SUCCESS);
126			break;
127			case 'l':
128			log_path = sstrdup (optarg);
129			have_log = true;
130			break;
131			case 'n':
132			runflags \|= RF_LIVE;
133			break;
134			case 'p':
135			pidfilename = optarg;
136			break;
137			case 'v':
138			print_version ();
139			exit (EXIT_SUCCESS);
140			break;
141			default:
142			printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n", me.execname);
143			exit (EXIT_SUCCESS);
144			break;
145			}
146			}
147
148			if (have_conf == false)
149			config_file = sstrdup (SYSCONFDIR "/" PACKAGE_NAME ".conf");
150
151			if (have_log == false)
152			log_path = sstrdup (LOGDIR "/" PACKAGE_NAME ".log");
153
154			cold_start = true;
155
156			runflags \|= RF_STARTING;
157
158	pippijn	1.5	me.start = time_t (now ());
159	pippijn	1.1	NOW = me.start;
160	pippijn	1.5	init_gen_rand (NOW);
161			srand (gen_rand32 ());
162	pippijn	1.1	me.execname = argv[0];
163
164			/* set signal handlers */
165			init_signal_handlers ();
166
167			/* open log */
168			log_open ();
169	pippijn	1.5
170	pippijn	1.1	printf ("%s: version " PACKAGE_NAME "-%s\n", me.execname, version);
171	pippijn	1.5
172	pippijn	1.1	/* check for pid file */
173			if ((pid_file = fopen (pidfilename, "r")))
174			{
175			if (fgets (buf, 32, pid_file))
176	pippijn	1.5	{
177			pid = atoi (buf);
178
179			if (!kill (pid, 0))
180			{
181			fprintf (stderr, "%s: daemon is already running\n", me.execname);
182			exit (EXIT_FAILURE);
183			}
184			}
185
186	pippijn	1.1	fclose (pid_file);
187			}
188	pippijn	1.5
189	pippijn	1.1	#if HAVE_UMASK
190			/* file creation mask */
191			umask (077);
192			#endif
193	pippijn	1.5
194	pippijn	1.1	event_init ();
195			init_dlink_nodes ();
196			init_netio ();
197			init_socket_queues ();
198	pippijn	1.5
199	pippijn	1.1	init_nodes ();
200			init_newconf ();
201			servtree_init ();
202			init_ircpacket ();
203	pippijn	1.5
204	pippijn	1.1	conf_init ();
205			if (!conf_parse (config_file))
206			{
207			slog (LG_ERROR, "Error loading config file %s, aborting", config_file);
208			exit (EXIT_FAILURE);
209			}
210	pippijn	1.5
211	pippijn	1.1	authcookie_init ();
212			common_ctcp_init ();
213			update_chanacs_flags ();
214	pippijn	1.5
215			if (!database::handler::loaded)
216	pippijn	1.1	{
217	pippijn	1.5	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
218	pippijn	1.1	exit (EXIT_FAILURE);
219			}
220	pippijn	1.5
221	pippijn	1.1	/* check our config file */
222			if (!conf_check ())
223			exit (EXIT_FAILURE);
224	pippijn	1.5
225	pippijn	1.1	/* we've done the critical startup steps now */
226			cold_start = false;
227	pippijn	1.5
228	pippijn	1.1	/* load our db */
229	pippijn	1.5	if (database::handler::loaded)
230			backend->load ();
231	pippijn	1.1	else
232			{
233			/* XXX: We should have bailed by now! --nenolod */
234	pippijn	1.5	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
235	pippijn	1.1	exit (EXIT_FAILURE);
236			}
237			db_check ();
238	pippijn	1.5
239	pippijn	1.1	#ifdef HAVE_FORK
240			/* fork into the background */
241			if (!(runflags & RF_LIVE))
242			{
243			close (0);
244			if (open ("/dev/null", O_RDWR) != 0)
245	pippijn	1.5	{
246			fprintf (stderr, "%s: unable to open /dev/null??\n", me.execname);
247			exit (EXIT_FAILURE);
248			}
249	pippijn	1.1	if ((i = fork ()) < 0)
250	pippijn	1.5	{
251			fprintf (stderr, "%s: can't fork into the background\n", me.execname);
252			exit (EXIT_FAILURE);
253			}
254
255	pippijn	1.1	/* parent */
256			else if (i != 0)
257	pippijn	1.5	{
258			printf ("%s: pid %d\n", me.execname, i);
259			printf ("%s: running in background mode from " PREFIX "\n", me.execname);
260			exit (EXIT_SUCCESS);
261			}
262
263	pippijn	1.1	/* parent is gone, just us now */
264			if (setsid () < 0)
265	pippijn	1.5	{
266			fprintf (stderr, "%s: unable to create new session\n", me.execname);
267			exit (EXIT_FAILURE);
268			}
269	pippijn	1.1	dup2 (0, 1);
270			dup2 (0, 2);
271			}
272			else
273			{
274			printf ("%s: pid %d\n", me.execname, getpid ());
275			printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
276			}
277			#else
278			printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
279			#endif
280	pippijn	1.5
281	pippijn	1.1	#ifdef HAVE_GETPID
282			/* write pid */
283			if ((pid_file = fopen (pidfilename, "w")))
284			{
285			fprintf (pid_file, "%d\n", getpid ());
286			fclose (pid_file);
287			}
288			else
289			{
290			fprintf (stderr, "%s: unable to write pid file\n", me.execname);
291			exit (EXIT_FAILURE);
292			}
293			#endif
294			/* no longer starting */
295			runflags &= ~RF_STARTING;
296	pippijn	1.5
297	pippijn	1.1	/* we probably have a few open already... */
298			me.maxfd = 3;
299	pippijn	1.5
300	pippijn	1.1	/* DB commit interval is configurable */
301			event_add ("db_save", db_save, NULL, config_options.commit_interval);
302	pippijn	1.5
303	pippijn	1.1	/* check expires every hour */
304			event_add ("expire_check", expire_check, NULL, 3600);
305	pippijn	1.5
306	pippijn	1.1	/* check kline expires every minute */
307	pippijn	1.8	event_add ("kline_t::expire", kline_t::expire, NULL, 60);
308	pippijn	1.5
309	pippijn	1.1	/* check authcookie expires every ten minutes */
310			event_add ("authcookie_expire", authcookie_expire, NULL, 600);
311	pippijn	1.5
312	pippijn	1.1	me.connected = false;
313			uplink_connect ();
314
315			/* main loop */
316			io_loop ();
317	pippijn	1.5
318	pippijn	1.1	/* we're shutting down */
319	pippijn	1.5	backend->save ();
320	pippijn	1.1	if (chansvs.me != NULL && chansvs.me->me != NULL)
321	pippijn	1.5	phandler->quit_sts (chansvs.me->me, "shutting down");
322
323	pippijn	1.1	remove (pidfilename);
324			errno = 0;
325			if (curr_uplink != NULL && curr_uplink->conn != NULL)
326			sendq_flush (curr_uplink->conn);
327	pippijn	1.7	connection_t::close_all ();
328	pippijn	1.1
329			me.connected = false;
330	pippijn	1.5
331	pippijn	1.1	/* should we restart? */
332			if (runflags & RF_RESTART)
333			{
334			slog (LG_INFO, "main(): restarting");
335
336			#ifdef HAVE_EXECVE
337	pippijn	1.4	execve (me.execname, argv, envp);
338	pippijn	1.1	#endif
339			}
340	pippijn	1.5
341	pippijn	1.1	slog (LG_INFO, "main(): shutting down");
342
343	pippijn	1.5	/* free used memory */
344			shstr::cleanup ();
345			modules::cleanup ();
346	pippijn	1.6	myuser_t::cleanup (); // XXX: this currently breaks and I don't know why
347	pippijn	1.8	mynick_t::cleanup ();
348	pippijn	1.7	mychan_t::cleanup ();
349	pippijn	1.5	delete phandler;
350	pippijn	1.8	deinit_conf ();
351			server_delete (me.me, true);
352	pippijn	1.5
353	pippijn	1.1	log_shutdown ();
354
355			return 0;
356			}