citadel/config.c

   1 /*
   2  * Read and write the citadel.config file
   3  *
   4  * Copyright (c) 1987-2017 by the citadel.org team
   5  *
   6  * This program is open source software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include "sysdep.h"
  16 #include <stdio.h>
  17 #include <sys/utsname.h>
  18 #include <libcitadel.h>
  19 #include <assert.h>
  20 #include "config.h"
  21 #include "ctdl_module.h"
  22
  23 long config_msgnum = 0;
  24 HashList *ctdlconfig = NULL;    // new configuration
  25
  26
  27 void config_warn_if_port_unset(char *key, int default_port)                     \
  28 {
  29         int p = CtdlGetConfigInt(key);
  30         if ((p < -1) || (p == 0) || (p > UINT16_MAX))
  31         {
  32                 syslog(LOG_ERR,
  33                         "config: setting %s is not -1 (disabled) or a valid TCP-Port - check your config! Default setting is: %d",
  34                         key, default_port
  35                 );
  36         }
  37 }
  38
  39
  40 void config_warn_if_empty(char *key)
  41 {
  42         if (IsEmptyStr(CtdlGetConfigStr(key)))
  43         {
  44                 syslog(LOG_ERR, "config: setting %s is empty, but must not - check your config!", key);
  45         }
  46 }
  47
  48
  49 void validate_config(void) {
  50
  51         /*
  52          * these shouldn't be empty
  53          */
  54         config_warn_if_empty("c_fqdn");
  55         config_warn_if_empty("c_baseroom");
  56         config_warn_if_empty("c_aideroom");
  57         config_warn_if_empty("c_twitroom");
  58         config_warn_if_empty("c_nodename");
  59         config_warn_if_empty("c_default_cal_zone");
  60
  61         /*
  62          * Sanity check for port bindings
  63          */
  64         config_warn_if_port_unset("c_smtp_port", 25);
  65         config_warn_if_port_unset("c_pop3_port", 110);
  66         config_warn_if_port_unset("c_imap_port", 143);
  67         config_warn_if_port_unset("c_msa_port", 587);
  68         config_warn_if_port_unset("c_port_number", 504);
  69         config_warn_if_port_unset("c_smtps_port", 465);
  70         config_warn_if_port_unset("c_pop3s_port", 995);
  71         config_warn_if_port_unset("c_imaps_port", 993);
  72         config_warn_if_port_unset("c_pftcpdict_port", -1);
  73         config_warn_if_port_unset("c_managesieve_port", 2020);
  74         config_warn_if_port_unset("c_xmpp_c2s_port", 5222);
  75         config_warn_if_port_unset("c_xmpp_s2s_port", 5269);
  76         config_warn_if_port_unset("c_nntp_port", 119);
  77         config_warn_if_port_unset("c_nntps_port", 563);
  78
  79         if (getpwuid(ctdluid) == NULL) {
  80                 syslog(LOG_ERR, "config: UID (%d) citadel is configured to use is not defined in your system (/etc/passwd?)!", ctdluid);
  81         }
  82 }
  83
  84
  85 /*
  86  * Put some sane default values into our configuration.  Some will be overridden when we run setup.
  87  */
  88 void brand_new_installation_set_defaults(void) {
  89
  90         struct utsname my_utsname;
  91         struct hostent *he;
  92         char detected_hostname[256];
  93
  94         /* Determine our host name, in case we need to use it as a default */
  95         uname(&my_utsname);
  96
  97         /* set some sample/default values in place of blanks... */
  98         extract_token(detected_hostname, my_utsname.nodename, 0, '.', sizeof detected_hostname);
  99         CtdlSetConfigStr("c_nodename", detected_hostname);
 100
 101         if ((he = gethostbyname(my_utsname.nodename)) != NULL) {
 102                 CtdlSetConfigStr("c_fqdn", he->h_name);
 103         }
 104         else {
 105                 CtdlSetConfigStr("c_fqdn", my_utsname.nodename);
 106         }
 107
 108         CtdlSetConfigStr("c_humannode",         "Citadel Server");
 109         CtdlSetConfigInt("c_initax",            4);
 110         CtdlSetConfigStr("c_moreprompt",        "<more>");
 111         CtdlSetConfigStr("c_twitroom",          "Trashcan");
 112         CtdlSetConfigStr("c_baseroom",          BASEROOM);
 113         CtdlSetConfigStr("c_aideroom",          "Aide");
 114         CtdlSetConfigInt("c_sleeping",          900);
 115
 116         if (CtdlGetConfigInt("c_createax") == 0) {
 117                 CtdlSetConfigInt("c_createax", 3);
 118         }
 119
 120         /*
 121          * Default port numbers for various services
 122          */
 123         CtdlSetConfigInt("c_port_number",       504);
 124         CtdlSetConfigInt("c_smtp_port",         25);
 125         CtdlSetConfigInt("c_pop3_port",         110);
 126         CtdlSetConfigInt("c_imap_port",         143);
 127         CtdlSetConfigInt("c_msa_port",          587);
 128         CtdlSetConfigInt("c_smtps_port",        465);
 129         CtdlSetConfigInt("c_pop3s_port",        995);
 130         CtdlSetConfigInt("c_imaps_port",        993);
 131         CtdlSetConfigInt("c_pftcpdict_port",    -1);
 132         CtdlSetConfigInt("c_managesieve_port",  2020);
 133         CtdlSetConfigInt("c_xmpp_c2s_port",     5222);
 134         CtdlSetConfigInt("c_xmpp_s2s_port",     5269);
 135         CtdlSetConfigInt("c_nntp_port",         119);
 136         CtdlSetConfigInt("c_nntps_port",        563);
 137
 138         /*
 139          * Prevent the "new installation, set defaults" behavior from occurring again
 140          */
 141         CtdlSetConfigLong("c_config_created_or_migrated", (long)time(NULL));
 142 }
 143
 144
 145 /*
 146  * Migrate a supplied legacy configuration to the new in-db format.
 147  * No individual site should ever have to do this more than once.
 148  */
 149 void migrate_legacy_config(struct legacy_config *lconfig)
 150 {
 151         CtdlSetConfigStr(       "c_nodename"            ,       lconfig->c_nodename             );
 152         CtdlSetConfigStr(       "c_fqdn"                ,       lconfig->c_fqdn                 );
 153         CtdlSetConfigStr(       "c_humannode"           ,       lconfig->c_humannode            );
 154         CtdlSetConfigInt(       "c_creataide"           ,       lconfig->c_creataide            );
 155         CtdlSetConfigInt(       "c_sleeping"            ,       lconfig->c_sleeping             );
 156         CtdlSetConfigInt(       "c_initax"              ,       lconfig->c_initax               );
 157         CtdlSetConfigInt(       "c_regiscall"           ,       lconfig->c_regiscall            );
 158         CtdlSetConfigInt(       "c_twitdetect"          ,       lconfig->c_twitdetect           );
 159         CtdlSetConfigStr(       "c_twitroom"            ,       lconfig->c_twitroom             );
 160         CtdlSetConfigStr(       "c_moreprompt"          ,       lconfig->c_moreprompt           );
 161         CtdlSetConfigInt(       "c_restrict"            ,       lconfig->c_restrict             );
 162         CtdlSetConfigStr(       "c_site_location"       ,       lconfig->c_site_location        );
 163         CtdlSetConfigStr(       "c_sysadm"              ,       lconfig->c_sysadm               );
 164         CtdlSetConfigInt(       "c_maxsessions"         ,       lconfig->c_maxsessions          );
 165         CtdlSetConfigStr(       "c_ip_addr"             ,       lconfig->c_ip_addr              );
 166         CtdlSetConfigInt(       "c_port_number"         ,       lconfig->c_port_number          );
 167         CtdlSetConfigInt(       "c_ep_mode"             ,       lconfig->c_ep.expire_mode       );
 168         CtdlSetConfigInt(       "c_ep_value"            ,       lconfig->c_ep.expire_value      );
 169         CtdlSetConfigInt(       "c_userpurge"           ,       lconfig->c_userpurge            );
 170         CtdlSetConfigInt(       "c_roompurge"           ,       lconfig->c_roompurge            );
 171         CtdlSetConfigStr(       "c_logpages"            ,       lconfig->c_logpages             );
 172         CtdlSetConfigInt(       "c_createax"            ,       lconfig->c_createax             );
 173         CtdlSetConfigLong(      "c_maxmsglen"           ,       lconfig->c_maxmsglen            );
 174         CtdlSetConfigInt(       "c_min_workers"         ,       lconfig->c_min_workers          );
 175         CtdlSetConfigInt(       "c_max_workers"         ,       lconfig->c_max_workers          );
 176         CtdlSetConfigInt(       "c_pop3_port"           ,       lconfig->c_pop3_port            );
 177         CtdlSetConfigInt(       "c_smtp_port"           ,       lconfig->c_smtp_port            );
 178         CtdlSetConfigInt(       "c_rfc822_strict_from"  ,       lconfig->c_rfc822_strict_from   );
 179         CtdlSetConfigInt(       "c_aide_zap"            ,       lconfig->c_aide_zap             );
 180         CtdlSetConfigInt(       "c_imap_port"           ,       lconfig->c_imap_port            );
 181         CtdlSetConfigLong(      "c_net_freq"            ,       lconfig->c_net_freq             );
 182         CtdlSetConfigInt(       "c_disable_newu"        ,       lconfig->c_disable_newu         );
 183         CtdlSetConfigInt(       "c_enable_fulltext"     ,       lconfig->c_enable_fulltext      );
 184         CtdlSetConfigStr(       "c_baseroom"            ,       lconfig->c_baseroom             );
 185         CtdlSetConfigStr(       "c_aideroom"            ,       lconfig->c_aideroom             );
 186         CtdlSetConfigInt(       "c_purge_hour"          ,       lconfig->c_purge_hour           );
 187         CtdlSetConfigInt(       "c_mbxep_mode"          ,       lconfig->c_mbxep.expire_mode    );
 188         CtdlSetConfigInt(       "c_mbxep_value"         ,       lconfig->c_mbxep.expire_value   );
 189         CtdlSetConfigStr(       "c_ldap_host"           ,       lconfig->c_ldap_host            );
 190         CtdlSetConfigInt(       "c_ldap_port"           ,       lconfig->c_ldap_port            );
 191         CtdlSetConfigStr(       "c_ldap_base_dn"        ,       lconfig->c_ldap_base_dn         );
 192         CtdlSetConfigStr(       "c_ldap_bind_dn"        ,       lconfig->c_ldap_bind_dn         );
 193         CtdlSetConfigStr(       "c_ldap_bind_pw"        ,       lconfig->c_ldap_bind_pw         );
 194         CtdlSetConfigInt(       "c_msa_port"            ,       lconfig->c_msa_port             );
 195         CtdlSetConfigInt(       "c_imaps_port"          ,       lconfig->c_imaps_port           );
 196         CtdlSetConfigInt(       "c_pop3s_port"          ,       lconfig->c_pop3s_port           );
 197         CtdlSetConfigInt(       "c_smtps_port"          ,       lconfig->c_smtps_port           );
 198         CtdlSetConfigInt(       "c_auto_cull"           ,       lconfig->c_auto_cull            );
 199         CtdlSetConfigInt(       "c_allow_spoofing"      ,       lconfig->c_allow_spoofing       );
 200         CtdlSetConfigInt(       "c_journal_email"       ,       lconfig->c_journal_email        );
 201         CtdlSetConfigInt(       "c_journal_pubmsgs"     ,       lconfig->c_journal_pubmsgs      );
 202         CtdlSetConfigStr(       "c_journal_dest"        ,       lconfig->c_journal_dest         );
 203         CtdlSetConfigStr(       "c_default_cal_zone"    ,       lconfig->c_default_cal_zone     );
 204         CtdlSetConfigInt(       "c_pftcpdict_port"      ,       lconfig->c_pftcpdict_port       );
 205         CtdlSetConfigInt(       "c_managesieve_port"    ,       lconfig->c_managesieve_port     );
 206         CtdlSetConfigInt(       "c_auth_mode"           ,       lconfig->c_auth_mode            );
 207         CtdlSetConfigStr(       "c_funambol_host"       ,       lconfig->c_funambol_host        );
 208         CtdlSetConfigInt(       "c_funambol_port"       ,       lconfig->c_funambol_port        );
 209         CtdlSetConfigStr(       "c_funambol_source"     ,       lconfig->c_funambol_source      );
 210         CtdlSetConfigStr(       "c_funambol_auth"       ,       lconfig->c_funambol_auth        );
 211         CtdlSetConfigInt(       "c_rbl_at_greeting"     ,       lconfig->c_rbl_at_greeting      );
 212         CtdlSetConfigStr(       "c_master_user"         ,       lconfig->c_master_user          );
 213         CtdlSetConfigStr(       "c_master_pass"         ,       lconfig->c_master_pass          );
 214         CtdlSetConfigStr(       "c_pager_program"       ,       lconfig->c_pager_program        );
 215         CtdlSetConfigInt(       "c_imap_keep_from"      ,       lconfig->c_imap_keep_from       );
 216         CtdlSetConfigInt(       "c_xmpp_c2s_port"       ,       lconfig->c_xmpp_c2s_port        );
 217         CtdlSetConfigInt(       "c_xmpp_s2s_port"       ,       lconfig->c_xmpp_s2s_port        );
 218         CtdlSetConfigLong(      "c_pop3_fetch"          ,       lconfig->c_pop3_fetch           );
 219         CtdlSetConfigLong(      "c_pop3_fastest"        ,       lconfig->c_pop3_fastest         );
 220         CtdlSetConfigInt(       "c_spam_flag_only"      ,       lconfig->c_spam_flag_only       );
 221         CtdlSetConfigInt(       "c_guest_logins"        ,       lconfig->c_guest_logins         );
 222         CtdlSetConfigInt(       "c_nntp_port"           ,       lconfig->c_nntp_port            );
 223         CtdlSetConfigInt(       "c_nntps_port"          ,       lconfig->c_nntps_port           );
 224 }
 225
 226
 227 /*
 228  * Called during the initialization of Citadel server.
 229  * It verifies the system's integrity and reads citadel.config into memory.
 230  */
 231 void initialize_config_system(void) {
 232         FILE *cfp;
 233         int rv;
 234         struct legacy_config lconfig;   // legacy configuration
 235         ctdlconfig = NewHash(1, NULL);  // set up the real config system
 236
 237         /* Ensure that we are linked to the correct version of libcitadel */
 238         if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
 239                 fprintf(stderr, "You are running libcitadel version %d\n", libcitadel_version_number());
 240                 fprintf(stderr, "citserver was compiled against version %d\n", LIBCITADEL_VERSION_NUMBER);
 241                 exit(CTDLEXIT_LIBCITADEL);
 242         }
 243
 244         if (chdir(ctdl_bbsbase_dir) != 0) {
 245                 fprintf(stderr,
 246                         "This program could not be started.\nUnable to change directory to %s\nError: %s\n",
 247                         ctdl_bbsbase_dir,
 248                         strerror(errno)
 249                 );
 250                 exit(CTDLEXIT_HOME);
 251         }
 252
 253         memset(&lconfig, 0, sizeof(struct legacy_config));
 254         cfp = fopen(file_citadel_config, "rb");
 255         if (cfp != NULL) {
 256                 if (CtdlGetConfigLong("c_config_created_or_migrated") > 0) {
 257                         fprintf(stderr, "Citadel Server found BOTH legacy and new configurations present.\n");
 258                         fprintf(stderr, "Exiting to prevent data corruption.\n");
 259                         exit(CTDLEXIT_CONFIG);
 260                 }
 261                 rv = fread((char *) &lconfig, sizeof(struct legacy_config), 1, cfp);
 262                 if (rv != 1)
 263                 {
 264                         fprintf(stderr,
 265                                 "Warning: Found a legacy config file %s has unexpected size. \n",
 266                                 file_citadel_config
 267                         );
 268                 }
 269
 270                 migrate_legacy_config(&lconfig);
 271
 272                 fclose(cfp);
 273                 if (unlink(file_citadel_config) != 0) {
 274                         fprintf(stderr, "Unable to remove legacy config file %s after migrating it.\n", file_citadel_config);
 275                         fprintf(stderr, "Exiting to prevent data corruption.\n");
 276                         exit(CTDLEXIT_CONFIG);
 277                 }
 278
 279                 /*
 280                  * Prevent migration/initialization from happening again.
 281                  */
 282                 CtdlSetConfigLong("c_config_created_or_migrated", (long)time(NULL));
 283
 284         }
 285
 286         /* New installation?  Set up configuration */
 287         if (CtdlGetConfigLong("c_config_created_or_migrated") <= 0) {
 288                 brand_new_installation_set_defaults();
 289         }
 290
 291         /* Only allow LDAP auth mode if we actually have LDAP support */
 292 #ifndef HAVE_LDAP
 293         if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
 294                 fprintf(stderr, "Your system is configured for LDAP authentication,\n"
 295                                 "but you are running a server built without OpenLDAP support.\n");
 296                 exit(CTDL_EXIT_UNSUP_AUTH);
 297         }
 298 #endif
 299
 300         /* Default maximum message length is 10 megabytes.  This is site
 301          * configurable.  Also check to make sure the limit has not been
 302          * set below 8192 bytes.
 303          */
 304         if (CtdlGetConfigLong("c_maxmsglen") <= 0)      CtdlSetConfigLong("c_maxmsglen", 10485760);
 305         if (CtdlGetConfigLong("c_maxmsglen") < 8192)    CtdlSetConfigLong("c_maxmsglen", 8192);
 306
 307         /*
 308          * Default lower and upper limits on number of worker threads
 309          */
 310         if (CtdlGetConfigInt("c_min_workers") < 5)      CtdlSetConfigInt("c_min_workers", 5);   // min
 311         if (CtdlGetConfigInt("c_max_workers") == 0)     CtdlSetConfigInt("c_max_workers", 256); // default max
 312         if (CtdlGetConfigInt("c_max_workers") < CtdlGetConfigInt("c_min_workers")) {
 313                 CtdlSetConfigInt("c_max_workers", CtdlGetConfigInt("c_min_workers"));           // max >= min
 314         }
 315
 316         /* Networking more than once every five minutes just isn't sane */
 317         if (CtdlGetConfigLong("c_net_freq") == 0)       CtdlSetConfigLong("c_net_freq", 3600);  // once per hour default
 318         if (CtdlGetConfigLong("c_net_freq") < 300)      CtdlSetConfigLong("c_net_freq", 300);   // minimum 5 minutes
 319
 320         /* Same goes for POP3 */
 321         if (CtdlGetConfigLong("c_pop3_fetch") == 0)     CtdlSetConfigLong("c_pop3_fetch", 3600);        // once per hour default
 322         if (CtdlGetConfigLong("c_pop3_fetch") < 300)    CtdlSetConfigLong("c_pop3_fetch", 300);         // 5 minutes min
 323         if (CtdlGetConfigLong("c_pop3_fastest") == 0)   CtdlSetConfigLong("c_pop3_fastest", 3600);      // once per hour default
 324         if (CtdlGetConfigLong("c_pop3_fastest") < 300)  CtdlSetConfigLong("c_pop3_fastest", 300);       // 5 minutes min
 325
 326         /* "create new user" only works with native authentication mode */
 327         if (CtdlGetConfigInt("c_auth_mode") != AUTHMODE_NATIVE) {
 328                 CtdlSetConfigInt("c_disable_newu", 1);
 329         }
 330 }
 331
 332
 333 /*
 334  * Called when Citadel server is shutting down.
 335  * Clears out the config hash table.
 336  */
 337 void shutdown_config_system(void)
 338 {
 339         DeleteHash(&ctdlconfig);
 340 }
 341
 342
 343 /*
 344  * Set a system config value.  Simple key/value here.
 345  */
 346 void CtdlSetConfigStr(char *key, char *value)
 347 {
 348         int key_len = strlen(key);
 349         int value_len = strlen(value);
 350
 351         /* Save it in memory */
 352         Put(ctdlconfig, key, key_len, strdup(value), NULL);
 353
 354         /* Also write it to the config database */
 355
 356         int dbv_size = key_len + value_len + 2;
 357         char *dbv = malloc(dbv_size);
 358         strcpy(dbv, key);
 359         strcpy(&dbv[key_len + 1], value);
 360         cdb_store(CDB_CONFIG, key, key_len, dbv, dbv_size);
 361         free(dbv);
 362 }
 363
 364
 365 /*
 366  * Set a numeric system config value (long integer)
 367  */
 368 void CtdlSetConfigLong(char *key, long value)
 369 {
 370         char longstr[256];
 371         sprintf(longstr, "%ld", value);
 372         CtdlSetConfigStr(key, longstr);
 373 }
 374
 375
 376 /*
 377  * Set a numeric system config value (integer)
 378  */
 379 void CtdlSetConfigInt(char *key, int value)
 380 {
 381         char intstr[256];
 382         sprintf(intstr, "%d", value);
 383         CtdlSetConfigStr(key, intstr);
 384 }
 385
 386
 387 /*
 388  * Delete a system config value.
 389  */
 390 void CtdlDelConfig(char *key)
 391 {
 392         int key_len = strlen(key);
 393
 394         if (IsEmptyStr(key)) return;
 395
 396         /* Delete from the database. */
 397         cdb_delete(CDB_CONFIG, key, key_len);
 398
 399         /* Delete from the in-memory cache */
 400         HashPos *Pos = GetNewHashPos(ctdlconfig, 1);
 401         if (GetHashPosFromKey(ctdlconfig, key, key_len, Pos)) {
 402                 DeleteEntryFromHash(ctdlconfig, Pos);
 403         }
 404         DeleteHashPos(&Pos);
 405
 406         assert(Pos == NULL);    // no memory leaks allowed
 407 }
 408
 409
 410 /*
 411  * Fetch a system config value.  Caller does *not* own the returned value and may not alter it.
 412  */
 413 char *CtdlGetConfigStr(char *key)
 414 {
 415         char *value = NULL;
 416         struct cdbdata *cdb;
 417         int key_len = strlen(key);
 418
 419         if (IsEmptyStr(key)) return(NULL);
 420
 421         /* First look in memory */
 422         if (GetHash(ctdlconfig, key, key_len, (void *)&value))
 423         {
 424                 return value;
 425         }
 426
 427         /* Then look in the database. */
 428
 429         cdb = cdb_fetch(CDB_CONFIG, key, key_len);
 430
 431         if (cdb == NULL) {      /* nope, not there either. */
 432                 return(NULL);
 433         }
 434
 435         /* Got it.  Save it in memory for the next fetch. */
 436         value = strdup(cdb->ptr + key_len + 1);         /* The key was stored there too; skip past it */
 437         cdb_free(cdb);
 438         Put(ctdlconfig, key, key_len, value, NULL);
 439         return value;
 440 }
 441
 442
 443 /*
 444  * Fetch a system config value - integer
 445  */
 446 int CtdlGetConfigInt(char *key)
 447 {
 448         char *s = CtdlGetConfigStr(key);
 449         if (s) return atoi(s);
 450         return 0;
 451 }
 452
 453
 454 /*
 455  * Fetch a system config value - long integer
 456  */
 457 long CtdlGetConfigLong(char *key)
 458 {
 459         char *s = CtdlGetConfigStr(key);
 460         if (s) return atol(s);
 461         return 0;
 462 }
 463
 464
 465 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
 466         config_msgnum = msgnum;
 467 }
 468
 469
 470 char *CtdlGetSysConfig(char *sysconfname) {
 471         char hold_rm[ROOMNAMELEN];
 472         long msgnum;
 473         char *conf;
 474         struct CtdlMessage *msg;
 475         char buf[SIZ];
 476
 477         strcpy(hold_rm, CC->room.QRname);
 478         if (CtdlGetRoom(&CC->room, SYSCONFIGROOM) != 0) {
 479                 CtdlGetRoom(&CC->room, hold_rm);
 480                 return NULL;
 481         }
 482
 483         /* We want the last (and probably only) config in this room */
 484         begin_critical_section(S_CONFIG);
 485         config_msgnum = (-1L);
 486         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
 487                            CtdlGetSysConfigBackend, NULL);
 488         msgnum = config_msgnum;
 489         end_critical_section(S_CONFIG);
 490
 491         if (msgnum < 0L) {
 492                 conf = NULL;
 493         }
 494         else {
 495                 msg = CtdlFetchMessage(msgnum, 1, 1);
 496                 if (msg != NULL) {
 497                         conf = strdup(msg->cm_fields[eMesageText]);
 498                         CM_Free(msg);
 499                 }
 500                 else {
 501                         conf = NULL;
 502                 }
 503         }
 504
 505         CtdlGetRoom(&CC->room, hold_rm);
 506
 507         if (conf != NULL) do {
 508                         extract_token(buf, conf, 0, '\n', sizeof buf);
 509                         strcpy(conf, &conf[strlen(buf)+1]);
 510                 } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
 511
 512         return(conf);
 513 }
 514
 515
 516 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
 517         CtdlWriteObject(SYSCONFIGROOM, sysconfname, sysconfdata, (strlen(sysconfdata)+1), NULL, 0, 1, 0);
 518 }