release/src/router/transmission/daemon/daemon.c

   1 /*
   2  * This file Copyright (C) 2008-2010 Mnemosyne LLC
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2
   6  * as published by the Free Software Foundation.
   7  *
   8  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
   9  *
  10  * $Id: daemon.c 11254 2010-09-22 22:19:21Z charles $
  11  */
  12
  13 #include <errno.h>
  14 #include <stdio.h> /* printf */
  15 #include <stdlib.h> /* exit, atoi */
  16 #include <string.h> /* strcmp */
  17
  18 #include <sys/types.h> /* umask*/
  19 #include <sys/stat.h> /* umask*/
  20
  21 #include <fcntl.h> /* open */
  22 #include <signal.h>
  23 #ifdef HAVE_SYSLOG
  24 #include <syslog.h>
  25 #endif
  26 #include <unistd.h> /* daemon */
  27
  28 #include <event.h>
  29
  30 #include <libtransmission/transmission.h>
  31 #include <libtransmission/bencode.h>
  32 #include <libtransmission/tr-getopt.h>
  33 #include <libtransmission/utils.h>
  34 #include <libtransmission/version.h>
  35
  36 #include "watch.h"
  37
  38 #define MY_NAME "transmission-daemon"
  39
  40 #define PREF_KEY_DIR_WATCH          "watch-dir"
  41 #define PREF_KEY_DIR_WATCH_ENABLED  "watch-dir-enabled"
  42 #define PREF_KEY_PIDFILE            "pidfile"
  43
  44 #define MEM_K 1024
  45 #define MEM_K_STR "KiB"
  46 #define MEM_M_STR "MiB"
  47 #define MEM_G_STR "GiB"
  48 #define MEM_T_STR "TiB"
  49
  50 #define DISK_K 1024
  51 #define DISK_B_STR   "B"
  52 #define DISK_K_STR "KiB"
  53 #define DISK_M_STR "MiB"
  54 #define DISK_G_STR "GiB"
  55 #define DISK_T_STR "TiB"
  56
  57 #define SPEED_K 1024
  58 #define SPEED_B_STR   "B/s"
  59 #define SPEED_K_STR "KiB/s"
  60 #define SPEED_M_STR "MiB/s"
  61 #define SPEED_G_STR "GiB/s"
  62 #define SPEED_T_STR "TiB/s"
  63
  64 static tr_bool paused = FALSE;
  65 static tr_bool closing = FALSE;
  66 static tr_session * mySession = NULL;
  67
  68 /***
  69 ****  Config File
  70 ***/
  71
  72 static const char *
  73 getUsage( void )
  74 {
  75     return "Transmission " LONG_VERSION_STRING
  76            "  http://www.transmissionbt.com/\n"
  77            "A fast and easy BitTorrent client\n"
  78            "\n"
  79            MY_NAME " is a headless Transmission session\n"
  80            "that can be controlled via transmission-remote\n"
  81            "or the web interface.\n"
  82            "\n"
  83            "Usage: " MY_NAME " [options]";
  84 }
  85
  86 static const struct tr_option options[] =
  87 {
  88
  89     { 'a', "allowed", "Allowed IP addresses.  (Default: " TR_DEFAULT_RPC_WHITELIST ")", "a", 1, "<list>" },
  90     { 'b', "blocklist", "Enable peer blocklists", "b", 0, NULL },
  91     { 'B', "no-blocklist", "Disable peer blocklists", "B", 0, NULL },
  92     { 'c', "watch-dir", "Where to watch for new .torrent files", "c", 1, "<directory>" },
  93     { 'C', "no-watch-dir", "Disable the watch-dir", "C", 0, NULL },
  94     { 941, "incomplete-dir", "Where to store new torrents until they're complete", NULL, 1, "<directory>" },
  95     { 942, "no-incomplete-dir", "Don't store incomplete torrents in a different location", NULL, 0, NULL },
  96     { 'd', "dump-settings", "Dump the settings and exit", "d", 0, NULL },
  97     { 'e', "logfile", "Dump the log messages to this filename", "e", 1, "<filename>" },
  98     { 'f', "foreground", "Run in the foreground instead of daemonizing", "f", 0, NULL },
  99     { 'g', "config-dir", "Where to look for configuration files", "g", 1, "<path>" },
 100     { 'p', "port", "RPC port (Default: " TR_DEFAULT_RPC_PORT_STR ")", "p", 1, "<port>" },
 101     { 't', "auth", "Require authentication", "t", 0, NULL },
 102     { 'T', "no-auth", "Don't require authentication", "T", 0, NULL },
 103     { 'u', "username", "Set username for authentication", "u", 1, "<username>" },
 104     { 'v', "password", "Set password for authentication", "v", 1, "<password>" },
 105     { 'V', "version", "Show version number and exit", "V", 0, NULL },
 106     { 810, "log-error", "Show error messages", NULL, 0, NULL },
 107     { 811, "log-info", "Show error and info messages", NULL, 0, NULL },
 108     { 812, "log-debug", "Show error, info, and debug messages", NULL, 0, NULL },
 109     { 'w', "download-dir", "Where to save downloaded data", "w", 1, "<path>" },
 110     { 800, "paused", "Pause all torrents on startup", NULL, 0, NULL },
 111     { 'o', "dht", "Enable distributed hash tables (DHT)", "o", 0, NULL },
 112     { 'O', "no-dht", "Disable distributed hash tables (DHT)", "O", 0, NULL },
 113     { 'y', "lpd", "Enable local peer discovery (LPD)", "y", 0, NULL },
 114     { 'Y', "no-lpd", "Disable local peer discovery (LPD)", "Y", 0, NULL },
 115     { 'P', "peerport", "Port for incoming peers (Default: " TR_DEFAULT_PEER_PORT_STR ")", "P", 1, "<port>" },
 116     { 'm', "portmap", "Enable portmapping via NAT-PMP or UPnP", "m", 0, NULL },
 117     { 'M', "no-portmap", "Disable portmapping", "M", 0, NULL },
 118     { 'L', "peerlimit-global", "Maximum overall number of peers (Default: " TR_DEFAULT_PEER_LIMIT_GLOBAL_STR ")", "L", 1, "<limit>" },
 119     { 'l', "peerlimit-torrent", "Maximum number of peers per torrent (Default: " TR_DEFAULT_PEER_LIMIT_TORRENT_STR ")", "l", 1, "<limit>" },
 120     { 910, "encryption-required",  "Encrypt all peer connections", "er", 0, NULL },
 121     { 911, "encryption-preferred", "Prefer encrypted peer connections", "ep", 0, NULL },
 122     { 912, "encryption-tolerated", "Prefer unencrypted peer connections", "et", 0, NULL },
 123     { 'i', "bind-address-ipv4", "Where to listen for peer connections", "i", 1, "<ipv4 addr>" },
 124     { 'I', "bind-address-ipv6", "Where to listen for peer connections", "I", 1, "<ipv6 addr>" },
 125     { 'r', "rpc-bind-address", "Where to listen for RPC connections", "r", 1, "<ipv4 addr>" },
 126     { 953, "global-seedratio", "All torrents, unless overridden by a per-torrent setting, should seed until a specific ratio", "gsr", 1, "ratio" },
 127     { 954, "no-global-seedratio", "All torrents, unless overridden by a per-torrent setting, should seed regardless of ratio", "GSR", 0, NULL },
 128     { 'x', "pid-file", "Enable PID file", "x", 1, "<pid-file>" },
 129     { 0, NULL, NULL, NULL, 0, NULL }
 130 };
 131
 132 static void
 133 showUsage( void )
 134 {
 135     tr_getopt_usage( MY_NAME, getUsage( ), options );
 136     exit( 0 );
 137 }
 138
 139 static void
 140 gotsig( int sig )
 141 {
 142     switch( sig )
 143     {
 144         case SIGHUP:
 145         {
 146             tr_benc settings;
 147             const char * configDir = tr_sessionGetConfigDir( mySession );
 148             tr_inf( "Reloading settings from \"%s\"", configDir );
 149             tr_bencInitDict( &settings, 0 );
 150             tr_bencDictAddBool( &settings, TR_PREFS_KEY_RPC_ENABLED, TRUE );
 151             tr_sessionLoadSettings( &settings, configDir, MY_NAME );
 152             tr_sessionSet( mySession, &settings );
 153             tr_bencFree( &settings );
 154             tr_sessionReloadBlocklists( mySession );
 155             break;
 156         }
 157
 158         default:
 159             closing = TRUE;
 160             break;
 161     }
 162 }
 163
 164 #if defined(WIN32)
 165  #define USE_NO_DAEMON
 166 #elif !defined(HAVE_DAEMON) || defined(__UCLIBC__)
 167  #define USE_TR_DAEMON
 168 #else
 169  #define USE_OS_DAEMON
 170 #endif
 171
 172 static int
 173 tr_daemon( int nochdir, int noclose )
 174 {
 175 #if defined(USE_OS_DAEMON)
 176     return daemon( nochdir, noclose );
 177 #elif defined(USE_TR_DAEMON)
 178     pid_t pid = fork( );
 179     if( pid < 0 )
 180         return -1;
 181     else if( pid > 0 )
 182         _exit( 0 );
 183     else {
 184         pid = setsid( );
 185         if( pid < 0 )
 186             return -1;
 187
 188         pid = fork( );
 189         if( pid < 0 )
 190             return -1;
 191         else if( pid > 0 )
 192             _exit( 0 );
 193         else {
 194
 195             if( !nochdir )
 196                 if( chdir( "/" ) < 0 )
 197                     return -1;
 198
 199             umask( (mode_t)0 );
 200
 201             if( !noclose ) {
 202                 /* send stdin, stdout, and stderr to /dev/null */
 203                 int i;
 204                 int fd = open( "/dev/null", O_RDWR, 0 );
 205                 if( fd < 0 )
 206                     fprintf( stderr, "unable to open /dev/null: %s\n", tr_strerror(errno) );
 207                 for( i=0; i<3; ++i ) {
 208                     if( close( i ) )
 209                         return -1;
 210                     dup2( fd, i );
 211                 }
 212                 close( fd );
 213             }
 214
 215             return 0;
 216         }
 217     }
 218 #else /* USE_NO_DAEMON */
 219     return 0;
 220 #endif
 221 }
 222
 223 static const char*
 224 getConfigDir( int argc, const char ** argv )
 225 {
 226     int c;
 227     const char * configDir = NULL;
 228     const char * optarg;
 229     const int ind = tr_optind;
 230
 231     while(( c = tr_getopt( getUsage( ), argc, argv, options, &optarg ))) {
 232         if( c == 'g' ) {
 233             configDir = optarg;
 234             break;
 235         }
 236     }
 237
 238     tr_optind = ind;
 239
 240     if( configDir == NULL )
 241         configDir = tr_getDefaultConfigDir( MY_NAME );
 242
 243     return configDir;
 244 }
 245
 246 static void
 247 onFileAdded( tr_session * session, const char * dir, const char * file )
 248 {
 249     char * filename = tr_buildPath( dir, file, NULL );
 250     tr_ctor * ctor = tr_ctorNew( session );
 251     int err = tr_ctorSetMetainfoFromFile( ctor, filename );
 252
 253     if( !err )
 254     {
 255         tr_torrentNew( ctor, &err );
 256
 257         if( err == TR_PARSE_ERR )
 258             tr_err( "Error parsing .torrent file \"%s\"", file );
 259         else
 260         {
 261             tr_bool trash = FALSE;
 262             int test = tr_ctorGetDeleteSource( ctor, &trash );
 263
 264             tr_inf( "Parsing .torrent file successful \"%s\"", file );
 265
 266             if( !test && trash )
 267             {
 268                 tr_inf( "Deleting input .torrent file \"%s\"", file );
 269                 if( remove( filename ) )
 270                     tr_err( "Error deleting .torrent file: %s", tr_strerror( errno ) );
 271             }
 272             else
 273             {
 274                 char * new_filename = tr_strdup_printf( "%s.added", filename );
 275                 rename( filename, new_filename );
 276                 tr_free( new_filename );
 277             }
 278         }
 279     }
 280
 281     tr_ctorFree( ctor );
 282     tr_free( filename );
 283 }
 284
 285 static void
 286 printMessage( FILE * logfile, int level, const char * name, const char * message, const char * file, int line )
 287 {
 288     if( logfile != NULL )
 289     {
 290         char timestr[64];
 291         tr_getLogTimeStr( timestr, sizeof( timestr ) );
 292         if( name )
 293             fprintf( logfile, "[%s] %s %s (%s:%d)\n", timestr, name, message, file, line );
 294         else
 295             fprintf( logfile, "[%s] %s (%s:%d)\n", timestr, message, file, line );
 296     }
 297 #ifdef HAVE_SYSLOG
 298     else /* daemon... write to syslog */
 299     {
 300         int priority;
 301
 302         /* figure out the syslog priority */
 303         switch( level ) {
 304             case TR_MSG_ERR: priority = LOG_ERR; break;
 305             case TR_MSG_DBG: priority = LOG_DEBUG; break;
 306             default: priority = LOG_INFO; break;
 307         }
 308
 309         if( name )
 310             syslog( priority, "%s %s (%s:%d)", name, message, file, line );
 311         else
 312             syslog( priority, "%s (%s:%d)", message, file, line );
 313     }
 314 #endif
 315 }
 316
 317 static void
 318 pumpLogMessages( FILE * logfile )
 319 {
 320     const tr_msg_list * l;
 321     tr_msg_list * list = tr_getQueuedMessages( );
 322
 323     for( l=list; l!=NULL; l=l->next )
 324         printMessage( logfile, l->level, l->name, l->message, l->file, l->line );
 325
 326     tr_freeMessageList( list );
 327 }
 328
 329 int
 330 main( int argc, char ** argv )
 331 {
 332     int c;
 333     const char * optarg;
 334     tr_benc settings;
 335     tr_bool boolVal;
 336     tr_bool loaded;
 337     tr_bool foreground = FALSE;
 338     tr_bool dumpSettings = FALSE;
 339     const char * configDir = NULL;
 340     const char * pid_filename;
 341     dtr_watchdir * watchdir = NULL;
 342     FILE * logfile = NULL;
 343     tr_bool pidfile_created = FALSE;
 344
 345     signal( SIGINT, gotsig );
 346     signal( SIGTERM, gotsig );
 347 #ifndef WIN32
 348     signal( SIGHUP, gotsig );
 349 #endif
 350
 351     /* load settings from defaults + config file */
 352     tr_bencInitDict( &settings, 0 );
 353     tr_bencDictAddBool( &settings, TR_PREFS_KEY_RPC_ENABLED, TRUE );
 354     configDir = getConfigDir( argc, (const char**)argv );
 355     loaded = tr_sessionLoadSettings( &settings, configDir, MY_NAME );
 356
 357     /* overwrite settings from the comamndline */
 358     tr_optind = 1;
 359     while(( c = tr_getopt( getUsage(), argc, (const char**)argv, options, &optarg ))) {
 360         switch( c ) {
 361             case 'a': tr_bencDictAddStr( &settings, TR_PREFS_KEY_RPC_WHITELIST, optarg );
 362                       tr_bencDictAddBool( &settings, TR_PREFS_KEY_RPC_WHITELIST_ENABLED, TRUE );
 363                       break;
 364             case 'b': tr_bencDictAddBool( &settings, TR_PREFS_KEY_BLOCKLIST_ENABLED, TRUE );
 365                       break;
 366             case 'B': tr_bencDictAddBool( &settings, TR_PREFS_KEY_BLOCKLIST_ENABLED, FALSE );
 367                       break;
 368             case 'c': tr_bencDictAddStr( &settings, PREF_KEY_DIR_WATCH, optarg );
 369                       tr_bencDictAddBool( &settings, PREF_KEY_DIR_WATCH_ENABLED, TRUE );
 370                       break;
 371             case 'C': tr_bencDictAddBool( &settings, PREF_KEY_DIR_WATCH_ENABLED, FALSE );
 372                       break;
 373             case 941: tr_bencDictAddStr( &settings, TR_PREFS_KEY_INCOMPLETE_DIR, optarg );
 374                       tr_bencDictAddBool( &settings, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, TRUE );
 375                       break;
 376             case 942: tr_bencDictAddBool( &settings, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, FALSE );
 377                       break;
 378             case 'd': dumpSettings = TRUE;
 379                       break;
 380             case 'e': logfile = fopen( optarg, "a+" );
 381                       if( logfile == NULL )
 382                           fprintf( stderr, "Couldn't open \"%s\": %s\n", optarg, tr_strerror( errno ) );
 383                       break;
 384             case 'f': foreground = TRUE;
 385                       break;
 386             case 'g': /* handled above */
 387                       break;
 388             case 'V': /* version */
 389                       fprintf(stderr, "%s %s\n", MY_NAME, LONG_VERSION_STRING);
 390                       exit( 0 );
 391             case 'o': tr_bencDictAddBool( &settings, TR_PREFS_KEY_DHT_ENABLED, TRUE );
 392                       break;
 393             case 'O': tr_bencDictAddBool( &settings, TR_PREFS_KEY_DHT_ENABLED, FALSE );
 394                       break;
 395             case 'p': tr_bencDictAddInt( &settings, TR_PREFS_KEY_RPC_PORT, atoi( optarg ) );
 396                       break;
 397             case 't': tr_bencDictAddBool( &settings, TR_PREFS_KEY_RPC_AUTH_REQUIRED, TRUE );
 398                       break;
 399             case 'T': tr_bencDictAddBool( &settings, TR_PREFS_KEY_RPC_AUTH_REQUIRED, FALSE );
 400                       break;
 401             case 'u': tr_bencDictAddStr( &settings, TR_PREFS_KEY_RPC_USERNAME, optarg );
 402                       break;
 403             case 'v': tr_bencDictAddStr( &settings, TR_PREFS_KEY_RPC_PASSWORD, optarg );
 404                       break;
 405             case 'w': tr_bencDictAddStr( &settings, TR_PREFS_KEY_DOWNLOAD_DIR, optarg );
 406                       break;
 407             case 'P': tr_bencDictAddInt( &settings, TR_PREFS_KEY_PEER_PORT, atoi( optarg ) );
 408                       break;
 409             case 'm': tr_bencDictAddBool( &settings, TR_PREFS_KEY_PORT_FORWARDING, TRUE );
 410                       break;
 411             case 'M': tr_bencDictAddBool( &settings, TR_PREFS_KEY_PORT_FORWARDING, FALSE );
 412                       break;
 413             case 'L': tr_bencDictAddInt( &settings, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, atoi( optarg ) );
 414                       break;
 415             case 'l': tr_bencDictAddInt( &settings, TR_PREFS_KEY_PEER_LIMIT_TORRENT, atoi( optarg ) );
 416                       break;
 417             case 800: paused = TRUE;
 418                       break;
 419             case 910: tr_bencDictAddInt( &settings, TR_PREFS_KEY_ENCRYPTION, TR_ENCRYPTION_REQUIRED );
 420                       break;
 421             case 911: tr_bencDictAddInt( &settings, TR_PREFS_KEY_ENCRYPTION, TR_ENCRYPTION_PREFERRED );
 422                       break;
 423             case 912: tr_bencDictAddInt( &settings, TR_PREFS_KEY_ENCRYPTION, TR_CLEAR_PREFERRED );
 424                       break;
 425             case 'i': tr_bencDictAddStr( &settings, TR_PREFS_KEY_BIND_ADDRESS_IPV4, optarg );
 426                       break;
 427             case 'I': tr_bencDictAddStr( &settings, TR_PREFS_KEY_BIND_ADDRESS_IPV6, optarg );
 428                       break;
 429             case 'r': tr_bencDictAddStr( &settings, TR_PREFS_KEY_RPC_BIND_ADDRESS, optarg );
 430                       break;
 431             case 953: tr_bencDictAddReal( &settings, TR_PREFS_KEY_RATIO, atof(optarg) );
 432                       tr_bencDictAddBool( &settings, TR_PREFS_KEY_RATIO_ENABLED, TRUE );
 433                       break;
 434             case 954: tr_bencDictAddBool( &settings, TR_PREFS_KEY_RATIO_ENABLED, FALSE );
 435                       break;
 436             case 'x': tr_bencDictAddStr( &settings, PREF_KEY_PIDFILE, optarg );
 437                       break;
 438             case 'y': tr_bencDictAddBool( &settings, TR_PREFS_KEY_LPD_ENABLED, TRUE );
 439                       break;
 440             case 'Y': tr_bencDictAddBool( &settings, TR_PREFS_KEY_LPD_ENABLED, FALSE );
 441                       break;
 442             case 810: tr_bencDictAddInt( &settings,  TR_PREFS_KEY_MSGLEVEL, TR_MSG_ERR );
 443                       break;
 444             case 811: tr_bencDictAddInt( &settings,  TR_PREFS_KEY_MSGLEVEL, TR_MSG_INF );
 445                       break;
 446             case 812: tr_bencDictAddInt( &settings,  TR_PREFS_KEY_MSGLEVEL, TR_MSG_DBG );
 447                       break;
 448             default:  showUsage( );
 449                       break;
 450         }
 451     }
 452
 453     if( foreground && !logfile )
 454         logfile = stderr;
 455
 456     if( !loaded )
 457     {
 458         printMessage( logfile, TR_MSG_ERR, MY_NAME, "Error loading config file -- exiting.", __FILE__, __LINE__ );
 459         return -1;
 460     }
 461
 462     if( dumpSettings )
 463     {
 464         char * str = tr_bencToStr( &settings, TR_FMT_JSON, NULL );
 465         fprintf( stderr, "%s", str );
 466         tr_free( str );
 467         return 0;
 468     }
 469
 470     if( !foreground && tr_daemon( TRUE, FALSE ) < 0 )
 471     {
 472         char buf[256];
 473         tr_snprintf( buf, sizeof( buf ), "Failed to daemonize: %s", tr_strerror( errno ) );
 474         printMessage( logfile, TR_MSG_ERR, MY_NAME, buf, __FILE__, __LINE__ );
 475         exit( 1 );
 476     }
 477
 478     /* start the session */
 479     tr_formatter_mem_init( MEM_K, MEM_K_STR, MEM_M_STR, MEM_G_STR, MEM_T_STR );
 480     tr_formatter_size_init( DISK_K, DISK_K_STR, DISK_M_STR, DISK_G_STR, DISK_T_STR );
 481     tr_formatter_speed_init( SPEED_K, SPEED_K_STR, SPEED_M_STR, SPEED_G_STR, SPEED_T_STR );
 482     mySession = tr_sessionInit( "daemon", configDir, TRUE, &settings );
 483     tr_ninf( NULL, "Using settings from \"%s\"", configDir );
 484     tr_sessionSaveSettings( mySession, configDir, &settings );
 485
 486     pid_filename = NULL;
 487     tr_bencDictFindStr( &settings, PREF_KEY_PIDFILE, &pid_filename );
 488     if( pid_filename && *pid_filename )
 489     {
 490         FILE * fp = fopen( pid_filename, "w+" );
 491         if( fp != NULL )
 492         {
 493             fprintf( fp, "%d", (int)getpid() );
 494             fclose( fp );
 495             tr_inf( "Saved pidfile \"%s\"", pid_filename );
 496             pidfile_created = TRUE;
 497         }
 498         else
 499             tr_err( "Unable to save pidfile \"%s\": %s", pid_filename, strerror( errno ) );
 500     }
 501
 502     if( tr_bencDictFindBool( &settings, TR_PREFS_KEY_RPC_AUTH_REQUIRED, &boolVal ) && boolVal )
 503         tr_ninf( MY_NAME, "requiring authentication" );
 504
 505     /* maybe add a watchdir */
 506     {
 507         const char * dir;
 508
 509         if( tr_bencDictFindBool( &settings, PREF_KEY_DIR_WATCH_ENABLED, &boolVal )
 510             && boolVal
 511             && tr_bencDictFindStr( &settings, PREF_KEY_DIR_WATCH, &dir )
 512             && dir
 513             && *dir )
 514         {
 515             tr_inf( "Watching \"%s\" for new .torrent files", dir );
 516             watchdir = dtr_watchdir_new( mySession, dir, onFileAdded );
 517         }
 518     }
 519
 520     /* load the torrents */
 521     {
 522         tr_torrent ** torrents;
 523         tr_ctor * ctor = tr_ctorNew( mySession );
 524         if( paused )
 525             tr_ctorSetPaused( ctor, TR_FORCE, TRUE );
 526         torrents = tr_sessionLoadTorrents( mySession, ctor, NULL );
 527         tr_free( torrents );
 528         tr_ctorFree( ctor );
 529     }
 530
 531 #ifdef HAVE_SYSLOG
 532     if( !foreground )
 533         openlog( MY_NAME, LOG_CONS|LOG_PID, LOG_DAEMON );
 534 #endif
 535
 536     while( !closing ) {
 537         tr_wait_msec( 1000 ); /* sleep one second */
 538         dtr_watchdir_update( watchdir );
 539         pumpLogMessages( logfile );
 540     }
 541
 542     /* shutdown */
 543 #if HAVE_SYSLOG
 544     if( !foreground )
 545     {
 546         syslog( LOG_INFO, "%s", "Closing session" );
 547         closelog( );
 548     }
 549 #endif
 550
 551     printf( "Closing transmission session..." );
 552     tr_sessionSaveSettings( mySession, configDir, &settings );
 553     dtr_watchdir_free( watchdir );
 554     tr_sessionClose( mySession );
 555     printf( " done.\n" );
 556
 557     /* cleanup */
 558     if( pidfile_created )
 559         remove( pid_filename );
 560     tr_bencFree( &settings );
 561     return 0;
 562 }