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 <stdlib.h>
  17 #include <unistd.h>
  18 #include <stdio.h>
  19 #include <netdb.h>
  20 #include <sys/utsname.h>
  21 #include <libcitadel.h>
  22 #include <assert.h>
  23 #include "config.h"
  24 #include "ctdl_module.h"
  25
  26 long config_msgnum = 0;
  27 HashList *ctdlconfig = NULL;    // new configuration
  28
  29
  30 void config_warn_if_port_unset(char *key, int default_port)                     \
  31 {
  32         int p = CtdlGetConfigInt(key);
  33         if ((p < -1) || (p == 0) || (p > UINT16_MAX))
  34         {
  35                 syslog(LOG_ERR,
  36                         "config: setting %s is not -1 (disabled) or a valid TCP-Port - check your config! Default setting is: %d",
  37                         key, default_port
  38                 );
  39         }
  40 }
  41
  42
  43 void config_warn_if_empty(char *key)
  44 {
  45         if (IsEmptyStr(CtdlGetConfigStr(key)))
  46         {
  47                 syslog(LOG_ERR, "config: setting %s is empty, but must not - check your config!", key);
  48         }
  49 }
  50
  51
  52 void validate_config(void) {
  53
  54         /*
  55          * these shouldn't be empty
  56          */
  57         config_warn_if_empty("c_fqdn");
  58         config_warn_if_empty("c_baseroom");
  59         config_warn_if_empty("c_aideroom");
  60         config_warn_if_empty("c_twitroom");
  61         config_warn_if_empty("c_nodename");
  62         config_warn_if_empty("c_default_cal_zone");
  63
  64         /*
  65          * Sanity check for port bindings
  66          */
  67         config_warn_if_port_unset("c_smtp_port", 25);
  68         config_warn_if_port_unset("c_pop3_port", 110);
  69         config_warn_if_port_unset("c_imap_port", 143);
  70         config_warn_if_port_unset("c_msa_port", 587);
  71         config_warn_if_port_unset("c_port_number", 504);
  72         config_warn_if_port_unset("c_smtps_port", 465);
  73         config_warn_if_port_unset("c_pop3s_port", 995);
  74         config_warn_if_port_unset("c_imaps_port", 993);
  75         config_warn_if_port_unset("c_pftcpdict_port", -1);
  76         config_warn_if_port_unset("c_managesieve_port", 2020);
  77         config_warn_if_port_unset("c_xmpp_c2s_port", 5222);
  78         config_warn_if_port_unset("c_xmpp_s2s_port", 5269);
  79         config_warn_if_port_unset("c_nntp_port", 119);
  80         config_warn_if_port_unset("c_nntps_port", 563);
  81
  82         if (getpwuid(ctdluid) == NULL) {
  83                 syslog(LOG_ERR, "config: UID (%d) citadel is configured to use is not defined in your system (/etc/passwd?)!", ctdluid);
  84         }
  85 }
  86
  87
  88 /*
  89  * Put some sane default values into our configuration.  Some will be overridden when we run setup.
  90  */
  91 void brand_new_installation_set_defaults(void) {
  92
  93         struct utsname my_utsname;
  94         struct hostent *he;
  95         char detected_hostname[256];
  96
  97         /* Determine our host name, in case we need to use it as a default */
  98         uname(&my_utsname);
  99
 100         /* set some sample/default values in place of blanks... */
 101         extract_token(detected_hostname, my_utsname.nodename, 0, '.', sizeof detected_hostname);
 102         CtdlSetConfigStr("c_nodename", detected_hostname);
 103
 104         if ((he = gethostbyname(my_utsname.nodename)) != NULL) {
 105                 CtdlSetConfigStr("c_fqdn", he->h_name);
 106         }
 107         else {
 108                 CtdlSetConfigStr("c_fqdn", my_utsname.nodename);
 109         }
 110
 111         CtdlSetConfigStr("c_humannode",         "Citadel Server");
 112         CtdlSetConfigInt("c_initax",            4);
 113         CtdlSetConfigStr("c_moreprompt",        "<more>");
 114         CtdlSetConfigStr("c_twitroom",          "Trashcan");
 115         CtdlSetConfigStr("c_baseroom",          BASEROOM);
 116         CtdlSetConfigStr("c_aideroom",          "Aide");
 117         CtdlSetConfigInt("c_sleeping",          900);
 118
 119         if (CtdlGetConfigInt("c_createax") == 0) {
 120                 CtdlSetConfigInt("c_createax", 3);
 121         }
 122
 123         /*
 124          * Default port numbers for various services
 125          */
 126         CtdlSetConfigInt("c_port_number",       504);
 127         CtdlSetConfigInt("c_smtp_port",         25);
 128         CtdlSetConfigInt("c_pop3_port",         110);
 129         CtdlSetConfigInt("c_imap_port",         143);
 130         CtdlSetConfigInt("c_msa_port",          587);
 131         CtdlSetConfigInt("c_smtps_port",        465);
 132         CtdlSetConfigInt("c_pop3s_port",        995);
 133         CtdlSetConfigInt("c_imaps_port",        993);
 134         CtdlSetConfigInt("c_pftcpdict_port",    -1);
 135         CtdlSetConfigInt("c_managesieve_port",  2020);
 136         CtdlSetConfigInt("c_xmpp_c2s_port",     5222);
 137         CtdlSetConfigInt("c_xmpp_s2s_port",     5269);
 138         CtdlSetConfigInt("c_nntp_port",         119);
 139         CtdlSetConfigInt("c_nntps_port",        563);
 140
 141         /*
 142          * Prevent the "new installation, set defaults" behavior from occurring again
 143          */
 144         CtdlSetConfigLong("c_config_created_or_migrated", (long)time(NULL));
 145 }
 146
 147
 148 /*
 149  * Migrate a supplied legacy configuration to the new in-db format.
 150  * No individual site should ever have to do this more than once.
 151  */
 152 void migrate_legacy_config(struct legacy_config *lconfig)
 153 {
 154         CtdlSetConfigStr(       "c_nodename"            ,       lconfig->c_nodename             );
 155         CtdlSetConfigStr(       "c_fqdn"                ,       lconfig->c_fqdn                 );
 156         CtdlSetConfigStr(       "c_humannode"           ,       lconfig->c_humannode            );
 157         CtdlSetConfigInt(       "c_creataide"           ,       lconfig->c_creataide            );
 158         CtdlSetConfigInt(       "c_sleeping"            ,       lconfig->c_sleeping             );
 159         CtdlSetConfigInt(       "c_initax"              ,       lconfig->c_initax               );
 160         CtdlSetConfigInt(       "c_regiscall"           ,       lconfig->c_regiscall            );
 161         CtdlSetConfigInt(       "c_twitdetect"          ,       lconfig->c_twitdetect           );
 162         CtdlSetConfigStr(       "c_twitroom"            ,       lconfig->c_twitroom             );
 163         CtdlSetConfigStr(       "c_moreprompt"          ,       lconfig->c_moreprompt           );
 164         CtdlSetConfigInt(       "c_restrict"            ,       lconfig->c_restrict             );
 165         CtdlSetConfigStr(       "c_site_location"       ,       lconfig->c_site_location        );
 166         CtdlSetConfigStr(       "c_sysadm"              ,       lconfig->c_sysadm               );
 167         CtdlSetConfigInt(       "c_maxsessions"         ,       lconfig->c_maxsessions          );
 168         CtdlSetConfigStr(       "c_ip_addr"             ,       lconfig->c_ip_addr              );
 169         CtdlSetConfigInt(       "c_port_number"         ,       lconfig->c_port_number          );
 170         CtdlSetConfigInt(       "c_ep_mode"             ,       lconfig->c_ep.expire_mode       );
 171         CtdlSetConfigInt(       "c_ep_value"            ,       lconfig->c_ep.expire_value      );
 172         CtdlSetConfigInt(       "c_userpurge"           ,       lconfig->c_userpurge            );
 173         CtdlSetConfigInt(       "c_roompurge"           ,       lconfig->c_roompurge            );
 174         CtdlSetConfigStr(       "c_logpages"            ,       lconfig->c_logpages             );
 175         CtdlSetConfigInt(       "c_createax"            ,       lconfig->c_createax             );
 176         CtdlSetConfigLong(      "c_maxmsglen"           ,       lconfig->c_maxmsglen            );
 177         CtdlSetConfigInt(       "c_min_workers"         ,       lconfig->c_min_workers          );
 178         CtdlSetConfigInt(       "c_max_workers"         ,       lconfig->c_max_workers          );
 179         CtdlSetConfigInt(       "c_pop3_port"           ,       lconfig->c_pop3_port            );
 180         CtdlSetConfigInt(       "c_smtp_port"           ,       lconfig->c_smtp_port            );
 181         CtdlSetConfigInt(       "c_rfc822_strict_from"  ,       lconfig->c_rfc822_strict_from   );
 182         CtdlSetConfigInt(       "c_aide_zap"            ,       lconfig->c_aide_zap             );
 183         CtdlSetConfigInt(       "c_imap_port"           ,       lconfig->c_imap_port            );
 184         CtdlSetConfigLong(      "c_net_freq"            ,       lconfig->c_net_freq             );
 185         CtdlSetConfigInt(       "c_disable_newu"        ,       lconfig->c_disable_newu         );
 186         CtdlSetConfigInt(       "c_enable_fulltext"     ,       lconfig->c_enable_fulltext      );
 187         CtdlSetConfigStr(       "c_baseroom"            ,       lconfig->c_baseroom             );
 188         CtdlSetConfigStr(       "c_aideroom"            ,       lconfig->c_aideroom             );
 189         CtdlSetConfigInt(       "c_purge_hour"          ,       lconfig->c_purge_hour           );
 190         CtdlSetConfigInt(       "c_mbxep_mode"          ,       lconfig->c_mbxep.expire_mode    );
 191         CtdlSetConfigInt(       "c_mbxep_value"         ,       lconfig->c_mbxep.expire_value   );
 192         CtdlSetConfigStr(       "c_ldap_host"           ,       lconfig->c_ldap_host            );
 193         CtdlSetConfigInt(       "c_ldap_port"           ,       lconfig->c_ldap_port            );
 194         CtdlSetConfigStr(       "c_ldap_base_dn"        ,       lconfig->c_ldap_base_dn         );
 195         CtdlSetConfigStr(       "c_ldap_bind_dn"        ,       lconfig->c_ldap_bind_dn         );
 196         CtdlSetConfigStr(       "c_ldap_bind_pw"        ,       lconfig->c_ldap_bind_pw         );
 197         CtdlSetConfigInt(       "c_msa_port"            ,       lconfig->c_msa_port             );
 198         CtdlSetConfigInt(       "c_imaps_port"          ,       lconfig->c_imaps_port           );
 199         CtdlSetConfigInt(       "c_pop3s_port"          ,       lconfig->c_pop3s_port           );
 200         CtdlSetConfigInt(       "c_smtps_port"          ,       lconfig->c_smtps_port           );
 201         CtdlSetConfigInt(       "c_auto_cull"           ,       lconfig->c_auto_cull            );
 202         CtdlSetConfigInt(       "c_allow_spoofing"      ,       lconfig->c_allow_spoofing       );
 203         CtdlSetConfigInt(       "c_journal_email"       ,       lconfig->c_journal_email        );
 204         CtdlSetConfigInt(       "c_journal_pubmsgs"     ,       lconfig->c_journal_pubmsgs      );
 205         CtdlSetConfigStr(       "c_journal_dest"        ,       lconfig->c_journal_dest         );
 206         CtdlSetConfigStr(       "c_default_cal_zone"    ,       lconfig->c_default_cal_zone     );
 207         CtdlSetConfigInt(       "c_pftcpdict_port"      ,       lconfig->c_pftcpdict_port       );
 208         CtdlSetConfigInt(       "c_managesieve_port"    ,       lconfig->c_managesieve_port     );
 209         CtdlSetConfigInt(       "c_auth_mode"           ,       lconfig->c_auth_mode            );
 210         CtdlSetConfigStr(       "c_funambol_host"       ,       lconfig->c_funambol_host        );
 211         CtdlSetConfigInt(       "c_funambol_port"       ,       lconfig->c_funambol_port        );
 212         CtdlSetConfigStr(       "c_funambol_source"     ,       lconfig->c_funambol_source      );
 213         CtdlSetConfigStr(       "c_funambol_auth"       ,       lconfig->c_funambol_auth        );
 214         CtdlSetConfigInt(       "c_rbl_at_greeting"     ,       lconfig->c_rbl_at_greeting      );
 215         CtdlSetConfigStr(       "c_master_user"         ,       lconfig->c_master_user          );
 216         CtdlSetConfigStr(       "c_master_pass"         ,       lconfig->c_master_pass          );
 217         CtdlSetConfigStr(       "c_pager_program"       ,       lconfig->c_pager_program        );
 218         CtdlSetConfigInt(       "c_imap_keep_from"      ,       lconfig->c_imap_keep_from       );
 219         CtdlSetConfigInt(       "c_xmpp_c2s_port"       ,       lconfig->c_xmpp_c2s_port        );
 220         CtdlSetConfigInt(       "c_xmpp_s2s_port"       ,       lconfig->c_xmpp_s2s_port        );
 221         CtdlSetConfigLong(      "c_pop3_fetch"          ,       lconfig->c_pop3_fetch           );
 222         CtdlSetConfigLong(      "c_pop3_fastest"        ,       lconfig->c_pop3_fastest         );
 223         CtdlSetConfigInt(       "c_spam_flag_only"      ,       lconfig->c_spam_flag_only       );
 224         CtdlSetConfigInt(       "c_guest_logins"        ,       lconfig->c_guest_logins         );
 225         CtdlSetConfigInt(       "c_nntp_port"           ,       lconfig->c_nntp_port            );
 226         CtdlSetConfigInt(       "c_nntps_port"          ,       lconfig->c_nntps_port           );
 227 }
 228
 229
 230 /*
 231  * Called during the initialization of Citadel server.
 232  * It verifies the system's integrity and reads citadel.config into memory.
 233  */
 234 void initialize_config_system(void) {
 235         FILE *cfp;
 236         int rv;
 237         struct legacy_config lconfig;   // legacy configuration
 238         ctdlconfig = NewHash(1, NULL);  // set up the real config system
 239
 240         /* Ensure that we are linked to the correct version of libcitadel */
 241         if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
 242                 fprintf(stderr, "You are running libcitadel version %d\n", libcitadel_version_number());
 243                 fprintf(stderr, "citserver was compiled against version %d\n", LIBCITADEL_VERSION_NUMBER);
 244                 exit(CTDLEXIT_LIBCITADEL);
 245         }
 246
 247         if (chdir(ctdl_bbsbase_dir) != 0) {
 248                 fprintf(stderr,
 249                         "This program could not be started.\nUnable to change directory to %s\nError: %s\n",
 250                         ctdl_bbsbase_dir,
 251                         strerror(errno)
 252                 );
 253                 exit(CTDLEXIT_HOME);
 254         }
 255
 256         memset(&lconfig, 0, sizeof(struct legacy_config));
 257         cfp = fopen(file_citadel_config, "rb");
 258         if (cfp != NULL) {
 259                 if (CtdlGetConfigLong("c_config_created_or_migrated") > 0) {
 260                         fprintf(stderr, "Citadel Server found BOTH legacy and new configurations present.\n");
 261                         fprintf(stderr, "Exiting to prevent data corruption.\n");
 262                         exit(CTDLEXIT_CONFIG);
 263                 }
 264                 rv = fread((char *) &lconfig, sizeof(struct legacy_config), 1, cfp);
 265                 if (rv != 1)
 266                 {
 267                         fprintf(stderr,
 268                                 "Warning: Found a legacy config file %s has unexpected size. \n",
 269                                 file_citadel_config
 270                         );
 271                 }
 272
 273                 migrate_legacy_config(&lconfig);
 274
 275                 fclose(cfp);
 276                 if (unlink(file_citadel_config) != 0) {
 277                         fprintf(stderr, "Unable to remove legacy config file %s after migrating it.\n", file_citadel_config);
 278                         fprintf(stderr, "Exiting to prevent data corruption.\n");
 279                         exit(CTDLEXIT_CONFIG);
 280                 }
 281
 282                 /*
 283                  * Prevent migration/initialization from happening again.
 284                  */
 285                 CtdlSetConfigLong("c_config_created_or_migrated", (long)time(NULL));
 286
 287         }
 288
 289         /* New installation?  Set up configuration */
 290         if (CtdlGetConfigLong("c_config_created_or_migrated") <= 0) {
 291                 brand_new_installation_set_defaults();
 292         }
 293
 294         /* Only allow LDAP auth mode if we actually have LDAP support */
 295 #ifndef HAVE_LDAP
 296         if ((CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP) || (CtdlGetConfigInt("c_auth_mode") == AUTHMODE_LDAP_AD)) {
 297                 fprintf(stderr, "Your system is configured for LDAP authentication,\n"
 298                                 "but you are running a server built without OpenLDAP support.\n");
 299                 exit(CTDL_EXIT_UNSUP_AUTH);
 300         }
 301 #endif
 302
 303         /* Default maximum message length is 10 megabytes.  This is site
 304          * configurable.  Also check to make sure the limit has not been
 305          * set below 8192 bytes.
 306          */
 307         if (CtdlGetConfigLong("c_maxmsglen") <= 0)      CtdlSetConfigLong("c_maxmsglen", 10485760);
 308         if (CtdlGetConfigLong("c_maxmsglen") < 8192)    CtdlSetConfigLong("c_maxmsglen", 8192);
 309
 310         /*
 311          * Default lower and upper limits on number of worker threads
 312          */
 313         if (CtdlGetConfigInt("c_min_workers") < 5)      CtdlSetConfigInt("c_min_workers", 5);   // min
 314         if (CtdlGetConfigInt("c_max_workers") == 0)     CtdlSetConfigInt("c_max_workers", 256); // default max
 315         if (CtdlGetConfigInt("c_max_workers") < CtdlGetConfigInt("c_min_workers")) {
 316                 CtdlSetConfigInt("c_max_workers", CtdlGetConfigInt("c_min_workers"));           // max >= min
 317         }
 318
 319         /* Networking more than once every five minutes just isn't sane */
 320         if (CtdlGetConfigLong("c_net_freq") == 0)       CtdlSetConfigLong("c_net_freq", 3600);  // once per hour default
 321         if (CtdlGetConfigLong("c_net_freq") < 300)      CtdlSetConfigLong("c_net_freq", 300);   // minimum 5 minutes
 322
 323         /* Same goes for POP3 */
 324         if (CtdlGetConfigLong("c_pop3_fetch") == 0)     CtdlSetConfigLong("c_pop3_fetch", 3600);        // once per hour default
 325         if (CtdlGetConfigLong("c_pop3_fetch") < 300)    CtdlSetConfigLong("c_pop3_fetch", 300);         // 5 minutes min
 326         if (CtdlGetConfigLong("c_pop3_fastest") == 0)   CtdlSetConfigLong("c_pop3_fastest", 3600);      // once per hour default
 327         if (CtdlGetConfigLong("c_pop3_fastest") < 300)  CtdlSetConfigLong("c_pop3_fastest", 300);       // 5 minutes min
 328
 329         /* "create new user" only works with native authentication mode */
 330         if (CtdlGetConfigInt("c_auth_mode") != AUTHMODE_NATIVE) {
 331                 CtdlSetConfigInt("c_disable_newu", 1);
 332         }
 333 }
 334
 335
 336 /*
 337  * Called when Citadel server is shutting down.
 338  * Clears out the config hash table.
 339  */
 340 void shutdown_config_system(void)
 341 {
 342         DeleteHash(&ctdlconfig);
 343 }
 344
 345
 346 /*
 347  * Set a system config value.  Simple key/value here.
 348  */
 349 void CtdlSetConfigStr(char *key, char *value)
 350 {
 351         int key_len = strlen(key);
 352         int value_len = strlen(value);
 353
 354         /* Save it in memory */
 355         Put(ctdlconfig, key, key_len, strdup(value), NULL);
 356
 357         /* Also write it to the config database */
 358
 359         int dbv_size = key_len + value_len + 2;
 360         char *dbv = malloc(dbv_size);
 361         strcpy(dbv, key);
 362         strcpy(&dbv[key_len + 1], value);
 363         cdb_store(CDB_CONFIG, key, key_len, dbv, dbv_size);
 364         free(dbv);
 365 }
 366
 367
 368 /*
 369  * Set a numeric system config value (long integer)
 370  */
 371 void CtdlSetConfigLong(char *key, long value)
 372 {
 373         char longstr[256];
 374         sprintf(longstr, "%ld", value);
 375         CtdlSetConfigStr(key, longstr);
 376 }
 377
 378
 379 /*
 380  * Set a numeric system config value (integer)
 381  */
 382 void CtdlSetConfigInt(char *key, int value)
 383 {
 384         char intstr[256];
 385         sprintf(intstr, "%d", value);
 386         CtdlSetConfigStr(key, intstr);
 387 }
 388
 389
 390 /*
 391  * Delete a system config value.
 392  */
 393 void CtdlDelConfig(char *key)
 394 {
 395         int key_len = strlen(key);
 396
 397         if (IsEmptyStr(key)) return;
 398
 399         /* Delete from the database. */
 400         cdb_delete(CDB_CONFIG, key, key_len);
 401
 402         /* Delete from the in-memory cache */
 403         HashPos *Pos = GetNewHashPos(ctdlconfig, 1);
 404         if (GetHashPosFromKey(ctdlconfig, key, key_len, Pos)) {
 405                 DeleteEntryFromHash(ctdlconfig, Pos);
 406         }
 407         DeleteHashPos(&Pos);
 408
 409         assert(Pos == NULL);    // no memory leaks allowed
 410 }
 411
 412
 413 /*
 414  * Fetch a system config value.  Caller does *not* own the returned value and may not alter it.
 415  */
 416 char *CtdlGetConfigStr(char *key)
 417 {
 418         char *value = NULL;
 419         struct cdbdata *cdb;
 420         int key_len = strlen(key);
 421
 422         if (IsEmptyStr(key)) return(NULL);
 423
 424         /* First look in memory */
 425         if (GetHash(ctdlconfig, key, key_len, (void *)&value))
 426         {
 427                 return value;
 428         }
 429
 430         /* Then look in the database. */
 431
 432         cdb = cdb_fetch(CDB_CONFIG, key, key_len);
 433
 434         if (cdb == NULL) {      /* nope, not there either. */
 435                 return(NULL);
 436         }
 437
 438         /* Got it.  Save it in memory for the next fetch. */
 439         value = strdup(cdb->ptr + key_len + 1);         /* The key was stored there too; skip past it */
 440         cdb_free(cdb);
 441         Put(ctdlconfig, key, key_len, value, NULL);
 442         return value;
 443 }
 444
 445
 446 /*
 447  * Fetch a system config value - integer
 448  */
 449 int CtdlGetConfigInt(char *key)
 450 {
 451         char *s = CtdlGetConfigStr(key);
 452         if (s) return atoi(s);
 453         return 0;
 454 }
 455
 456
 457 /*
 458  * Fetch a system config value - long integer
 459  */
 460 long CtdlGetConfigLong(char *key)
 461 {
 462         char *s = CtdlGetConfigStr(key);
 463         if (s) return atol(s);
 464         return 0;
 465 }
 466
 467
 468 void CtdlGetSysConfigBackend(long msgnum, void *userdata) {
 469         config_msgnum = msgnum;
 470 }
 471
 472
 473 char *CtdlGetSysConfig(char *sysconfname) {
 474         char hold_rm[ROOMNAMELEN];
 475         long msgnum;
 476         char *conf;
 477         struct CtdlMessage *msg;
 478         char buf[SIZ];
 479
 480         strcpy(hold_rm, CC->room.QRname);
 481         if (CtdlGetRoom(&CC->room, SYSCONFIGROOM) != 0) {
 482                 CtdlGetRoom(&CC->room, hold_rm);
 483                 return NULL;
 484         }
 485
 486         /* We want the last (and probably only) config in this room */
 487         begin_critical_section(S_CONFIG);
 488         config_msgnum = (-1L);
 489         CtdlForEachMessage(MSGS_LAST, 1, NULL, sysconfname, NULL,
 490                            CtdlGetSysConfigBackend, NULL);
 491         msgnum = config_msgnum;
 492         end_critical_section(S_CONFIG);
 493
 494         if (msgnum < 0L) {
 495                 conf = NULL;
 496         }
 497         else {
 498                 msg = CtdlFetchMessage(msgnum, 1, 1);
 499                 if (msg != NULL) {
 500                         conf = strdup(msg->cm_fields[eMesageText]);
 501                         CM_Free(msg);
 502                 }
 503                 else {
 504                         conf = NULL;
 505                 }
 506         }
 507
 508         CtdlGetRoom(&CC->room, hold_rm);
 509
 510         if (conf != NULL) do {
 511                         extract_token(buf, conf, 0, '\n', sizeof buf);
 512                         strcpy(conf, &conf[strlen(buf)+1]);
 513                 } while ( (!IsEmptyStr(conf)) && (!IsEmptyStr(buf)) );
 514
 515         return(conf);
 516 }
 517
 518
 519 void CtdlPutSysConfig(char *sysconfname, char *sysconfdata) {
 520         CtdlWriteObject(SYSCONFIGROOM, sysconfname, sysconfdata, (strlen(sysconfdata)+1), NULL, 0, 1, 0);
 521 }