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 1.7 2007-08-30 19:56:26 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:	1.8
Committed:	Sun Sep 9 20:05:52 2007 UTC (16 years, 8 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+6 -5 lines
Log Message:	- changed configurations to the c++ stdlib - more #defines to enum - removed getopt.h and link.h from the system as they were unused - reworked logstreams - added an itoa with old syntax - made klines objects - moved some global variables into appropriate classes - fixed boost.foreach's compiler workaround #if's - allow other files to add exceptions with ADD_EXCEPTION - changed mynick_t to c++ object - moved servers.h out of atheme.h - corrected PING from inspircd 1.2
#	User	Rev	Content
1	pippijn	1.1	/*
2			* main.C: Initialisation routine.
3	pippijn	1.2	* Rights to this code are documented in doc/pod/license.pod.
4	pippijn	1.1	*/
5
6	pippijn	1.8	static char const rcsid[] = "$Id: main.C,v 1.7 2007-08-30 19:56:26 pippijn Exp $";
7	pippijn	1.1
8			#include "atheme.h"
9	pippijn	1.8	#include "servers.h"
10	pippijn	1.5	#include <ermyth/database.h>
11			#include <ermyth/module.h>
12	pippijn	1.1	#include <account/kline.h>
13	pippijn	1.5	#include <account/myuser.h>
14			#include <account/mynick.h>
15			#include <account/mychan.h>
16			#include "account.h" // XXX: expire_check
17	pippijn	1.1	#include "uplink.h"
18			#include "internal.h"
19			#include "datastream.h"
20			#include "authcookie.h"
21			#include "connection.h"
22			#include "confparse.h"
23	pippijn	1.5	#include <ermyth/shstr.h>
24			#include <common/random.h>
25
26	pippijn	1.1	/* INDENT-OFF */
27			static void
28			print_help (void)
29			{
30			printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n\n"
31			"-c <file> Specify the config file\n"
32			"-d Start in debugging mode\n"
33			"-h Print this message and exit\n"
34			"-l <file> Specify the log file\n"
35			"-n Don't fork into the background (log screen + log file)\n"
36			"-p <file> Specify the pid file (will be overwritten)\n"
37			"-v Print version information and exit\n", me.execname);
38			}
39
40			static void
41			print_version (void)
42			{
43			printf ("Ermyth IRC Services (" PACKAGE_NAME "-%s)\n"
44			"Compiled %s, build %s\n\n"
45			"Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team\n"
46			"Copyright © 2005-2007 Atheme Development Group\n"
47	pippijn	1.2	"Rights to this code are documented in doc/pod/license.pod.\n",
48	pippijn	1.1	version, creation, generation);
49			}
50			/* INDENT-ON */
51
52			static void
53	pippijn	1.5	db_save (void *)
54	pippijn	1.1	{
55	pippijn	1.5	backend->save ();
56	pippijn	1.1	}
57
58			int
59	pippijn	1.4	main (int argc, char argv[], char envp[])
60	pippijn	1.1	{
61			bool have_conf = false;
62			bool have_log = false;
63			char buf[32];
64			int i, pid, r;
65			FILE *pid_file;
66	pippijn	1.5	char const *pidfilename = RUNDIR "/" PACKAGE_NAME ".pid";
67	pippijn	1.1	#ifdef HAVE_GETRLIMIT
68			struct rlimit rlim;
69			#endif
70			curr_uplink = NULL;
71			me.argc = argc;
72			me.argv = argv;
73			me.execname = argv[0];
74
75			/* Prepare gettext */
76			#ifdef ENABLE_NLS
77			setlocale (LC_ALL, "");
78			bindtextdomain (PACKAGE_NAME, LOCALEDIR);
79			textdomain (PACKAGE_NAME);
80			#endif
81
82	pippijn	1.5	// set up shstr buckets
83			std::vector<shentry > shstr_buckets = new std::vector<shentry *> [shstr::bucketcnt ()];
84			shstr::initbuckets (shstr_buckets);
85
86	pippijn	1.1	/* change to our local directory */
87			if (chdir (PREFIX) < 0)
88			{
89			perror (PREFIX);
90			return 20;
91			}
92
93			#ifdef HAVE_GETRLIMIT
94			/* it appears certian systems ahemlinuxahem
95			* don't dump cores by default, so we do this here.
96			*/
97			if (!getrlimit (RLIMIT_CORE, &rlim))
98			{
99			rlim.rlim_cur = rlim.rlim_max;
100			setrlimit (RLIMIT_CORE, &rlim);
101			}
102			#endif
103
104			/* do command-line options */
105			while ((r = getopt (argc, argv, "c:dhl:np:v")) != -1)
106			{
107			switch (r)
108			{
109			case 'c':
110			config_file = sstrdup (optarg);
111			have_conf = true;
112			break;
113			case 'd':
114			log_force = true;
115			break;
116			case 'h':
117			print_help ();
118			exit (EXIT_SUCCESS);
119			break;
120			case 'l':
121			log_path = sstrdup (optarg);
122			have_log = true;
123			break;
124			case 'n':
125			runflags \|= RF_LIVE;
126			break;
127			case 'p':
128			pidfilename = optarg;
129			break;
130			case 'v':
131			print_version ();
132			exit (EXIT_SUCCESS);
133			break;
134			default:
135			printf ("usage: %s [-dhnv] [-c conf] [-l logfile] [-p pidfile]\n", me.execname);
136			exit (EXIT_SUCCESS);
137			break;
138			}
139			}
140
141			if (have_conf == false)
142			config_file = sstrdup (SYSCONFDIR "/" PACKAGE_NAME ".conf");
143
144			if (have_log == false)
145			log_path = sstrdup (LOGDIR "/" PACKAGE_NAME ".log");
146
147			cold_start = true;
148
149			runflags \|= RF_STARTING;
150
151	pippijn	1.5	me.start = time_t (now ());
152	pippijn	1.1	NOW = me.start;
153	pippijn	1.5	init_gen_rand (NOW);
154			srand (gen_rand32 ());
155	pippijn	1.1	me.execname = argv[0];
156
157			/* set signal handlers */
158			init_signal_handlers ();
159
160			/* open log */
161			log_open ();
162	pippijn	1.5
163	pippijn	1.1	printf ("%s: version " PACKAGE_NAME "-%s\n", me.execname, version);
164	pippijn	1.5
165	pippijn	1.1	/* check for pid file */
166			if ((pid_file = fopen (pidfilename, "r")))
167			{
168			if (fgets (buf, 32, pid_file))
169	pippijn	1.5	{
170			pid = atoi (buf);
171
172			if (!kill (pid, 0))
173			{
174			fprintf (stderr, "%s: daemon is already running\n", me.execname);
175			exit (EXIT_FAILURE);
176			}
177			}
178
179	pippijn	1.1	fclose (pid_file);
180			}
181	pippijn	1.5
182	pippijn	1.1	#if HAVE_UMASK
183			/* file creation mask */
184			umask (077);
185			#endif
186	pippijn	1.5
187	pippijn	1.1	event_init ();
188			init_dlink_nodes ();
189			init_netio ();
190			init_socket_queues ();
191	pippijn	1.5
192	pippijn	1.1	init_nodes ();
193			init_newconf ();
194			servtree_init ();
195			init_ircpacket ();
196	pippijn	1.5
197	pippijn	1.1	conf_init ();
198			if (!conf_parse (config_file))
199			{
200			slog (LG_ERROR, "Error loading config file %s, aborting", config_file);
201			exit (EXIT_FAILURE);
202			}
203	pippijn	1.5
204	pippijn	1.1	authcookie_init ();
205			common_ctcp_init ();
206			update_chanacs_flags ();
207	pippijn	1.5
208			if (!database::handler::loaded)
209	pippijn	1.1	{
210	pippijn	1.5	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
211	pippijn	1.1	exit (EXIT_FAILURE);
212			}
213	pippijn	1.5
214	pippijn	1.1	/* check our config file */
215			if (!conf_check ())
216			exit (EXIT_FAILURE);
217	pippijn	1.5
218	pippijn	1.1	/* we've done the critical startup steps now */
219			cold_start = false;
220	pippijn	1.5
221	pippijn	1.1	/* load our db */
222	pippijn	1.5	if (database::handler::loaded)
223			backend->load ();
224	pippijn	1.1	else
225			{
226			/* XXX: We should have bailed by now! --nenolod */
227	pippijn	1.5	fprintf (stderr, "%s: no backend loaded, see your configuration file.\n", me.execname);
228	pippijn	1.1	exit (EXIT_FAILURE);
229			}
230			db_check ();
231	pippijn	1.5
232	pippijn	1.1	#ifdef HAVE_FORK
233			/* fork into the background */
234			if (!(runflags & RF_LIVE))
235			{
236			close (0);
237			if (open ("/dev/null", O_RDWR) != 0)
238	pippijn	1.5	{
239			fprintf (stderr, "%s: unable to open /dev/null??\n", me.execname);
240			exit (EXIT_FAILURE);
241			}
242	pippijn	1.1	if ((i = fork ()) < 0)
243	pippijn	1.5	{
244			fprintf (stderr, "%s: can't fork into the background\n", me.execname);
245			exit (EXIT_FAILURE);
246			}
247
248	pippijn	1.1	/* parent */
249			else if (i != 0)
250	pippijn	1.5	{
251			printf ("%s: pid %d\n", me.execname, i);
252			printf ("%s: running in background mode from " PREFIX "\n", me.execname);
253			exit (EXIT_SUCCESS);
254			}
255
256	pippijn	1.1	/* parent is gone, just us now */
257			if (setsid () < 0)
258	pippijn	1.5	{
259			fprintf (stderr, "%s: unable to create new session\n", me.execname);
260			exit (EXIT_FAILURE);
261			}
262	pippijn	1.1	dup2 (0, 1);
263			dup2 (0, 2);
264			}
265			else
266			{
267			printf ("%s: pid %d\n", me.execname, getpid ());
268			printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
269			}
270			#else
271			printf ("%s: running in foreground mode from %s\n", me.execname, PREFIX);
272			#endif
273	pippijn	1.5
274	pippijn	1.1	#ifdef HAVE_GETPID
275			/* write pid */
276			if ((pid_file = fopen (pidfilename, "w")))
277			{
278			fprintf (pid_file, "%d\n", getpid ());
279			fclose (pid_file);
280			}
281			else
282			{
283			fprintf (stderr, "%s: unable to write pid file\n", me.execname);
284			exit (EXIT_FAILURE);
285			}
286			#endif
287			/* no longer starting */
288			runflags &= ~RF_STARTING;
289	pippijn	1.5
290	pippijn	1.1	/* we probably have a few open already... */
291			me.maxfd = 3;
292	pippijn	1.5
293	pippijn	1.1	/* DB commit interval is configurable */
294			event_add ("db_save", db_save, NULL, config_options.commit_interval);
295	pippijn	1.5
296	pippijn	1.1	/* check expires every hour */
297			event_add ("expire_check", expire_check, NULL, 3600);
298	pippijn	1.5
299	pippijn	1.1	/* check kline expires every minute */
300	pippijn	1.8	event_add ("kline_t::expire", kline_t::expire, NULL, 60);
301	pippijn	1.5
302	pippijn	1.1	/* check authcookie expires every ten minutes */
303			event_add ("authcookie_expire", authcookie_expire, NULL, 600);
304	pippijn	1.5
305	pippijn	1.1	me.connected = false;
306			uplink_connect ();
307
308			/* main loop */
309			io_loop ();
310	pippijn	1.5
311	pippijn	1.1	/* we're shutting down */
312	pippijn	1.5	backend->save ();
313	pippijn	1.1	if (chansvs.me != NULL && chansvs.me->me != NULL)
314	pippijn	1.5	phandler->quit_sts (chansvs.me->me, "shutting down");
315
316	pippijn	1.1	remove (pidfilename);
317			errno = 0;
318			if (curr_uplink != NULL && curr_uplink->conn != NULL)
319			sendq_flush (curr_uplink->conn);
320	pippijn	1.7	connection_t::close_all ();
321	pippijn	1.1
322			me.connected = false;
323	pippijn	1.5
324	pippijn	1.1	/* should we restart? */
325			if (runflags & RF_RESTART)
326			{
327			slog (LG_INFO, "main(): restarting");
328
329			#ifdef HAVE_EXECVE
330	pippijn	1.4	execve (me.execname, argv, envp);
331	pippijn	1.1	#endif
332			}
333	pippijn	1.5
334	pippijn	1.1	slog (LG_INFO, "main(): shutting down");
335
336	pippijn	1.5	/* free used memory */
337			shstr::cleanup ();
338			modules::cleanup ();
339	pippijn	1.6	myuser_t::cleanup (); // XXX: this currently breaks and I don't know why
340	pippijn	1.8	mynick_t::cleanup ();
341	pippijn	1.7	mychan_t::cleanup ();
342	pippijn	1.5	delete phandler;
343	pippijn	1.8	deinit_conf ();
344			server_delete (me.me, true);
345	pippijn	1.5
346	pippijn	1.1	log_shutdown ();
347
348			return 0;
349			}