ermyth/src/main.C

/*
 * main.C: Initialisation routine.
 * Rights to this code are documented in doc/pod/license.pod.
 */

static char const rcsid[] = "$Id: main.C,v 1.5 2007-08-28 17:08:12 pippijn Exp $";

#include "atheme.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>

extern char **environ;

/* *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_expire", kline_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_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_cleanup ();
  mychan_cleanup ();
  delete phandler;
  
  log_shutdown ();

  return 0;
}
Revision:	1.6
Committed:	Tue Aug 28 22:18:31 2007 UTC (16 years, 9 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.5:	+3 -3 lines
Log Message:	added type traits
#	Content
1	/*
2	* main.C: Initialisation routine.
3	* Rights to this code are documented in doc/pod/license.pod.
4	*/
5
6	static char const rcsid[] = "$Id: main.C,v 1.5 2007-08-28 17:08:12 pippijn Exp $";
7
8	#include "atheme.h"
9	#include <ermyth/database.h>
10	#include <ermyth/module.h>
11	#include <account/kline.h>
12	#include <account/myuser.h>
13	#include <account/mynick.h>
14	#include <account/mychan.h>
15	#include "account.h" // XXX: expire_check
16	#include "uplink.h"
17	#include "internal.h"
18	#include "datastream.h"
19	#include "authcookie.h"
20	#include "connection.h"
21	#include "confparse.h"
22	#include <ermyth/shstr.h>
23	#include <common/random.h>
24
25	extern char **environ;
26
27	/* INDENT-OFF */
28	static void
29	print_help (void)
30	{
31	printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n\n"
32	"-c <file> Specify the config file\n"
33	"-d Start in debugging mode\n"
34	"-h Print this message and exit\n"
35	"-l <file> Specify the log file\n"
36	"-n Don't fork into the background (log screen + log file)\n"
37	"-p <file> Specify the pid file (will be overwritten)\n"
38	"-v Print version information and exit\n", me.execname);
39	}
40
41	static void
42	print_version (void)
43	{
44	printf ("Ermyth IRC Services (" PACKAGE_NAME "-%s)\n"
45	"Compiled %s, build %s\n\n"
46	"Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team\n"
47	"Copyright © 2005-2007 Atheme Development Group\n"
48	"Rights to this code are documented in doc/pod/license.pod.\n",
49	version, creation, generation);
50	}
51	/* INDENT-ON */
52
53	static void
54	db_save (void *)
55	{
56	backend->save ();
57	}
58
59	int
60	main (int argc, char argv[], char envp[])
61	{
62	bool have_conf = false;
63	bool have_log = false;
64	char buf[32];
65	int i, pid, r;
66	FILE *pid_file;
67	char const *pidfilename = RUNDIR "/" PACKAGE_NAME ".pid";
68	#ifdef HAVE_GETRLIMIT
69	struct rlimit rlim;
70	#endif
71	curr_uplink = NULL;
72	me.argc = argc;
73	me.argv = argv;
74	me.execname = argv[0];
75
76	/* Prepare gettext */
77	#ifdef ENABLE_NLS
78	setlocale (LC_ALL, "");
79	bindtextdomain (PACKAGE_NAME, LOCALEDIR);
80	textdomain (PACKAGE_NAME);
81	#endif
82
83	// set up shstr buckets
84	std::vector<shentry > shstr_buckets = new std::vector<shentry *> [shstr::bucketcnt ()];
85	shstr::initbuckets (shstr_buckets);
86
87	/* change to our local directory */
88	if (chdir (PREFIX) < 0)
89	{
90	perror (PREFIX);
91	return 20;
92	}
93
94	#ifdef HAVE_GETRLIMIT
95	/* it appears certian systems ahemlinuxahem
96	* don't dump cores by default, so we do this here.
97	*/
98	if (!getrlimit (RLIMIT_CORE, &rlim))
99	{
100	rlim.rlim_cur = rlim.rlim_max;
101	setrlimit (RLIMIT_CORE, &rlim);
102	}
103	#endif
104
105	/* do command-line options */
106	while ((r = getopt (argc, argv, "c:dhl:np:v")) != -1)
107	{
108	switch (r)
109	{
110	case 'c':
111	config_file = sstrdup (optarg);
112	have_conf = true;
113	break;
114	case 'd':
115	log_force = true;
116	break;
117	case 'h':
118	print_help ();
119	exit (EXIT_SUCCESS);
120	break;
121	case 'l':
122	log_path = sstrdup (optarg);
123	have_log = true;
124	break;
125	case 'n':
126	runflags \|= RF_LIVE;
127	break;
128	case 'p':
129	pidfilename = optarg;
130	break;
131	case 'v':
132	print_version ();
133	exit (EXIT_SUCCESS);
134	break;
135	default:
136	printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n", me.execname);
137	exit (EXIT_SUCCESS);
138	break;
139	}
140	}
141
142	if (have_conf == false)
143	config_file = sstrdup (SYSCONFDIR "/" PACKAGE_NAME ".conf");
144
145	if (have_log == false)
146	log_path = sstrdup (LOGDIR "/" PACKAGE_NAME ".log");
147
148	cold_start = true;
149
150	runflags \|= RF_STARTING;
151
152	me.start = time_t (now ());
153	NOW = me.start;
154	init_gen_rand (NOW);
155	srand (gen_rand32 ());
156	me.execname = argv[0];
157
158	/* set signal handlers */
159	init_signal_handlers ();
160
161	/* open log */
162	log_open ();
163
164	printf ("%s: version " PACKAGE_NAME "-%s\n", me.execname, version);
165
166	/* check for pid file */
167	if ((pid_file = fopen (pidfilename, "r")))
168	{
169	if (fgets (buf, 32, pid_file))
170	{
171	pid = atoi (buf);
172
173	if (!kill (pid, 0))
174	{
175	fprintf (stderr, "%s: daemon is already running\n", me.execname);
176	exit (EXIT_FAILURE);
177	}
178	}
179
180	fclose (pid_file);
181	}
182
183	#if HAVE_UMASK
184	/* file creation mask */
185	umask (077);
186	#endif
187
188	event_init ();
189	init_dlink_nodes ();
190	init_netio ();
191	init_socket_queues ();
192
193	init_nodes ();
194	init_newconf ();
195	servtree_init ();
196	init_ircpacket ();
197
198	conf_init ();
199	if (!conf_parse (config_file))
200	{
201	slog (LG_ERROR, "Error loading config file %s, aborting", config_file);
202	exit (EXIT_FAILURE);
203	}
204
205	authcookie_init ();
206	common_ctcp_init ();
207	update_chanacs_flags ();
208
209	if (!database::handler::loaded)
210	{
211	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
212	exit (EXIT_FAILURE);
213	}
214
215	/* check our config file */
216	if (!conf_check ())
217	exit (EXIT_FAILURE);
218
219	/* we've done the critical startup steps now */
220	cold_start = false;
221
222	/* load our db */
223	if (database::handler::loaded)
224	backend->load ();
225	else
226	{
227	/* XXX: We should have bailed by now! --nenolod */
228	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
229	exit (EXIT_FAILURE);
230	}
231	db_check ();
232
233	#ifdef HAVE_FORK
234	/* fork into the background */
235	if (!(runflags & RF_LIVE))
236	{
237	close (0);
238	if (open ("/dev/null", O_RDWR) != 0)
239	{
240	fprintf (stderr, "%s: unable to open /dev/null??\n", me.execname);
241	exit (EXIT_FAILURE);
242	}
243	if ((i = fork ()) < 0)
244	{
245	fprintf (stderr, "%s: can't fork into the background\n", me.execname);
246	exit (EXIT_FAILURE);
247	}
248
249	/* parent */
250	else if (i != 0)
251	{
252	printf ("%s: pid %d\n", me.execname, i);
253	printf ("%s: running in background mode from " PREFIX "\n", me.execname);
254	exit (EXIT_SUCCESS);
255	}
256
257	/* parent is gone, just us now */
258	if (setsid () < 0)
259	{
260	fprintf (stderr, "%s: unable to create new session\n", me.execname);
261	exit (EXIT_FAILURE);
262	}
263	dup2 (0, 1);
264	dup2 (0, 2);
265	}
266	else
267	{
268	printf ("%s: pid %d\n", me.execname, getpid ());
269	printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
270	}
271	#else
272	printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
273	#endif
274
275	#ifdef HAVE_GETPID
276	/* write pid */
277	if ((pid_file = fopen (pidfilename, "w")))
278	{
279	fprintf (pid_file, "%d\n", getpid ());
280	fclose (pid_file);
281	}
282	else
283	{
284	fprintf (stderr, "%s: unable to write pid file\n", me.execname);
285	exit (EXIT_FAILURE);
286	}
287	#endif
288	/* no longer starting */
289	runflags &= ~RF_STARTING;
290
291	/* we probably have a few open already... */
292	me.maxfd = 3;
293
294	/* DB commit interval is configurable */
295	event_add ("db_save", db_save, NULL, config_options.commit_interval);
296
297	/* check expires every hour */
298	event_add ("expire_check", expire_check, NULL, 3600);
299
300	/* check kline expires every minute */
301	event_add ("kline_expire", kline_expire, NULL, 60);
302
303	/* check authcookie expires every ten minutes */
304	event_add ("authcookie_expire", authcookie_expire, NULL, 600);
305
306	me.connected = false;
307	uplink_connect ();
308
309	/* main loop */
310	io_loop ();
311
312	/* we're shutting down */
313	backend->save ();
314	if (chansvs.me != NULL && chansvs.me->me != NULL)
315	phandler->quit_sts (chansvs.me->me, "shutting down");
316
317	remove (pidfilename);
318	errno = 0;
319	if (curr_uplink != NULL && curr_uplink->conn != NULL)
320	sendq_flush (curr_uplink->conn);
321	connection_close_all ();
322
323	me.connected = false;
324
325	/* should we restart? */
326	if (runflags & RF_RESTART)
327	{
328	slog (LG_INFO, "main(): restarting");
329
330	#ifdef HAVE_EXECVE
331	execve (me.execname, argv, envp);
332	#endif
333	}
334
335	slog (LG_INFO, "main(): shutting down");
336
337	/* free used memory */
338	shstr::cleanup ();
339	modules::cleanup ();
340	myuser_t::cleanup (); // XXX: this currently breaks and I don't know why
341	mynick_cleanup ();
342	mychan_cleanup ();
343	delete phandler;
344
345	log_shutdown ();
346
347	return 0;
348	}