index/zserver.c

   1 /*
   2  * Copyright (C) 1995-2000, Index Data
   3  * All rights reserved.
   4  *
   5  * $Log: zserver.c,v $
   6  * Revision 1.80  2000-09-05 14:04:05  adam
   7  * Updates for prefix 'yaz_' for YAZ log functions.
   8  *
   9  * Revision 1.79  2000/05/09 10:56:50  adam
  10  * Added call to xmalloc/nmem debugging functions.
  11  *
  12  * Revision 1.78  2000/04/05 09:49:35  adam
  13  * On Unix, zebra/z'mbol uses automake.
  14  *
  15  * Revision 1.77  2000/03/20 19:08:36  adam
  16  * Added remote record import using Z39.50 extended services and Segment
  17  * Requests.
  18  *
  19  * Revision 1.76  2000/03/15 15:00:31  adam
  20  * First work on threaded version.
  21  *
  22  * Revision 1.75  1999/11/30 13:48:04  adam
  23  * Improved installation. Updated for inclusion of YAZ header files.
  24  *
  25  * Revision 1.74  1999/11/29 15:13:26  adam
  26  * Server sets implementationName - and Version.
  27  *
  28  * Revision 1.73  1999/11/04 15:00:45  adam
  29  * Implemented delete result set(s).
  30  *
  31  * Revision 1.71  1999/07/14 10:59:26  adam
  32  * Changed functions isc_getmethod, isams_getmethod.
  33  * Improved fatal error handling (such as missing EXPLAIN schema).
  34  *
  35  * Revision 1.70  1999/06/10 12:14:56  adam
  36  * Fixed to use bend_start instead of pre_init.
  37  *
  38  * Revision 1.69  1999/06/10 09:20:03  adam
  39  * Minor change to pre_init handler.
  40  *
  41  * Revision 1.68  1999/05/26 07:49:13  adam
  42  * C++ compilation.
  43  *
  44  * Revision 1.67  1999/02/02 14:51:14  adam
  45  * Updated WIN32 code specific sections. Changed header.
  46  *
  47  * Revision 1.66  1998/10/28 10:54:41  adam
  48  * SDRKit integration.
  49  *
  50  * Revision 1.65  1998/10/18 07:54:54  adam
  51  * Additional info added for diagnostics 114 (Unsupported use attribute) and
  52  * 121 (Unsupported attribute set).
  53  *
  54  * Revision 1.64  1998/09/22 10:48:21  adam
  55  * Minor changes in search API.
  56  *
  57  * Revision 1.63  1998/09/02 13:53:21  adam
  58  * Extra parameter decode added to search routines to implement
  59  * persistent queries.
  60  *
  61  * Revision 1.62  1998/08/06 14:35:28  adam
  62  * Routine bend_deleterequest removed.
  63  *
  64  * Revision 1.61  1998/06/24 12:16:15  adam
  65  * Support for relations on text operands. Open range support in
  66  * DFA module (i.e. [-j], [g-]).
  67  *
  68  * Revision 1.60  1998/06/22 11:36:49  adam
  69  * Added authentication check facility to zebra.
  70  *
  71  * Revision 1.59  1998/06/12 12:22:13  adam
  72  * Work on Zebra API.
  73  *
  74  * Revision 1.58  1998/05/27 16:57:46  adam
  75  * Zebra returns surrogate diagnostic for single records when
  76  * appropriate.
  77  *
  78  * Revision 1.57  1998/04/03 14:45:18  adam
  79  * Fixed setting of last_in_set in bend_fetch.
  80  *
  81  * Revision 1.56  1998/03/05 08:45:13  adam
  82  * New result set model and modular ranking system. Moved towards
  83  * descent server API. System information stored as "SGML" records.
  84  *
  85  * Revision 1.55  1998/02/10 12:03:06  adam
  86  * Implemented Sort.
  87  *
  88  * Revision 1.54  1998/01/29 13:39:13  adam
  89  * Compress ISAM is default.
  90  *
  91  * Revision 1.53  1998/01/12 15:04:09  adam
  92  * The test option (-s) only uses read-lock (and not write lock).
  93  *
  94  * Revision 1.52  1997/11/18 10:05:08  adam
  95  * Changed character map facility so that admin can specify character
  96  * mapping files for each register type, w, p, etc.
  97  *
  98  * Revision 1.51  1997/10/27 14:33:06  adam
  99  * Moved towards generic character mapping depending on "structure"
 100  * field in abstract syntax file. Fixed a few memory leaks. Fixed
 101  * bug with negative integers when doing searches with relational
 102  * operators.
 103  *
 104  * Revision 1.50  1997/09/29 09:08:36  adam
 105  * Revised locking system to be thread safe for the server.
 106  *
 107  * Revision 1.49  1997/09/25 14:57:23  adam
 108  * Windows NT port.
 109  *
 110  * Revision 1.48  1997/09/17 12:19:19  adam
 111  * Zebra version corresponds to YAZ version 1.4.
 112  * Changed Zebra server so that it doesn't depend on global common_resource.
 113  *
 114  * Revision 1.47  1997/09/04 13:58:36  adam
 115  * New retrieve/extract method tellf (added).
 116  * Added O_BINARY for open calls.
 117  *
 118  * Revision 1.46  1997/07/28 08:30:47  adam
 119  * Server returns diagnostic 14 when record doesn't exist.
 120  *
 121  * Revision 1.45  1996/12/23 15:30:45  adam
 122  * Work on truncation.
 123  * Bug fix: result sets weren't deleted after server shut down.
 124  *
 125  * Revision 1.44  1996/12/11 12:08:01  adam
 126  * Added better compression.
 127  *
 128  * Revision 1.43  1996/11/15 15:03:58  adam
 129  * Logging of execution speed by using the times(2) call.
 130  *
 131  * Revision 1.42  1996/11/08  11:10:36  adam
 132  * Buffers used during file match got bigger.
 133  * Compressed ISAM support everywhere.
 134  * Bug fixes regarding masking characters in queries.
 135  * Redesigned Regexp-2 queries.
 136  *
 137  * Revision 1.41  1996/10/29 14:09:56  adam
 138  * Use of cisam system - enabled if setting isamc is 1.
 139  *
 140  * Revision 1.40  1996/06/04 10:19:02  adam
 141  * Minor changes - removed include of ctype.h.
 142  *
 143  * Revision 1.39  1996/05/31  09:07:05  quinn
 144  * Work on character-set handling
 145  *
 146  * Revision 1.38  1996/05/14  11:34:01  adam
 147  * Scan support in multiple registers/databases.
 148  *
 149  * Revision 1.37  1996/05/14  06:16:48  adam
 150  * Compact use/set bytes used in search service.
 151  *
 152  * Revision 1.36  1996/05/01 13:46:37  adam
 153  * First work on multiple records in one file.
 154  * New option, -offset, to the "unread" command in the filter module.
 155  *
 156  * Revision 1.35  1996/03/26  16:01:14  adam
 157  * New setting lockPath: directory of various lock files.
 158  *
 159  * Revision 1.34  1996/03/20  09:36:46  adam
 160  * Function dict_lookup_grep got extra parameter, init_pos, which marks
 161  * from which position in pattern approximate pattern matching should occur.
 162  * Approximate pattern matching is used in relevance=re-2.
 163  *
 164  * Revision 1.33  1996/01/17  14:57:56  adam
 165  * Prototype changed for reader functions in extract/retrieve. File
 166  *  is identified by 'void *' instead of 'int.
 167  *
 168  * Revision 1.32  1995/12/11  09:12:58  adam
 169  * The rec_get function returns NULL if record doesn't exist - will
 170  * happen in the server if the result set records have been deleted since
 171  * the creation of the set (i.e. the search).
 172  * The server saves a result temporarily if it is 'volatile', i.e. the
 173  * set is register dependent.
 174  *
 175  * Revision 1.31  1995/12/08  16:22:56  adam
 176  * Work on update while servers are running. Three lock files introduced.
 177  * The servers reload their registers when necessary, but they don't
 178  * reestablish result sets yet.
 179  *
 180  * Revision 1.30  1995/12/07  17:38:48  adam
 181  * Work locking mechanisms for concurrent updates/commit.
 182  *
 183  * Revision 1.29  1995/12/04  14:22:32  adam
 184  * Extra arg to recType_byName.
 185  * Started work on new regular expression parsed input to
 186  * structured records.
 187  *
 188  * Revision 1.28  1995/11/28  09:09:48  adam
 189  * Zebra config renamed.
 190  * Use setting 'recordId' to identify record now.
 191  * Bug fix in recindex.c: rec_release_blocks was invokeded even
 192  * though the blocks were already released.
 193  * File traversal properly deletes records when needed.
 194  *
 195  * Revision 1.27  1995/11/27  13:58:54  adam
 196  * New option -t. storeStore data implemented in server.
 197  *
 198  * Revision 1.26  1995/11/25  10:24:07  adam
 199  * More record fields - they are enumerated now.
 200  * New options: flagStoreData flagStoreKey.
 201  *
 202  * Revision 1.25  1995/11/21  15:29:13  adam
 203  * Config file 'base' read by default by both indexer and server.
 204  *
 205  * Revision 1.24  1995/11/20  16:59:47  adam
 206  * New update method: the 'old' keys are saved for each records.
 207  *
 208  * Revision 1.23  1995/11/16  17:00:56  adam
 209  * Better logging of rpn query.
 210  *
 211  * Revision 1.22  1995/11/16  15:34:55  adam
 212  * Uses new record management system in both indexer and server.
 213  *
 214  * Revision 1.21  1995/11/01  16:25:52  quinn
 215  * *** empty log message ***
 216  *
 217  * Revision 1.20  1995/10/27  14:00:12  adam
 218  * Implemented detection of database availability.
 219  *
 220  * Revision 1.19  1995/10/17  18:02:11  adam
 221  * New feature: databases. Implemented as prefix to words in dictionary.
 222  *
 223  * Revision 1.18  1995/10/16  14:03:09  quinn
 224  * Changes to support element set names and espec1
 225  *
 226  * Revision 1.17  1995/10/16  09:32:40  adam
 227  * More work on relational op.
 228  *
 229  * Revision 1.16  1995/10/13  12:26:44  adam
 230  * Optimization of truncation.
 231  *
 232  * Revision 1.15  1995/10/12  12:40:55  adam
 233  * Bug fixes in rpn_prox.
 234  *
 235  * Revision 1.14  1995/10/09  16:18:37  adam
 236  * Function dict_lookup_grep got extra client data parameter.
 237  *
 238  * Revision 1.13  1995/10/06  14:38:00  adam
 239  * New result set method: r_score.
 240  * Local no (sysno) and score is transferred to retrieveCtrl.
 241  *
 242  * Revision 1.12  1995/10/06  13:52:06  adam
 243  * Bug fixes. Handler may abort further scanning.
 244  *
 245  * Revision 1.11  1995/10/06  10:43:57  adam
 246  * Scan added. 'occurrences' in scan entries not set yet.
 247  *
 248  * Revision 1.10  1995/10/02  16:43:32  quinn
 249  * Set default resulting record type in fetch.
 250  *
 251  * Revision 1.9  1995/10/02  15:18:52  adam
 252  * New member in recRetrieveCtrl: diagnostic.
 253  *
 254  * Revision 1.8  1995/09/28  09:19:47  adam
 255  * xfree/xmalloc used everywhere.
 256  * Extract/retrieve method seems to work for text records.
 257  *
 258  * Revision 1.7  1995/09/27  16:17:32  adam
 259  * More work on retrieve.
 260  *
 261  * Revision 1.6  1995/09/08  08:53:22  adam
 262  * Record buffer maintained in server_info.
 263  *
 264  * Revision 1.5  1995/09/06  16:11:18  adam
 265  * Option: only one word key per file.
 266  *
 267  * Revision 1.4  1995/09/06  10:33:04  adam
 268  * More work on present. Some log messages removed.
 269  *
 270  * Revision 1.3  1995/09/05  15:28:40  adam
 271  * More work on search engine.
 272  *
 273  * Revision 1.2  1995/09/04  12:33:43  adam
 274  * Various cleanup. YAZ util used instead.
 275  *
 276  * Revision 1.1  1995/09/04  09:10:41  adam
 277  * More work on index add/del/update.
 278  * Merge sort implemented.
 279  * Initial work on z39 server.
 280  *
 281  */
 282
 283 #include <stdio.h>
 284 #include <assert.h>
 285 #include <fcntl.h>
 286 #ifdef WIN32
 287 #include <io.h>
 288 #include <process.h>
 289 #else
 290 #include <unistd.h>
 291 #endif
 292
 293 #include <yaz/data1.h>
 294 #ifdef ASN_COMPILED
 295 #include <yaz/ill.h>
 296 #endif
 297
 298 #include "zserver.h"
 299
 300 #ifndef ZEBRASDR
 301 #define ZEBRASDR 0
 302 #endif
 303 #if ZEBRASDR
 304 #include "zebrasdr.h"
 305 #endif
 306
 307 static int bend_sort (void *handle, bend_sort_rr *rr);
 308 static int bend_delete (void *handle, bend_delete_rr *rr);
 309 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
 310 static int bend_segment (void *handle, bend_segment_rr *rr);
 311 static int bend_search (void *handle, bend_search_rr *r);
 312 static int bend_fetch (void *handle, bend_fetch_rr *r);
 313 static int bend_scan (void *handle, bend_scan_rr *r);
 314
 315 bend_initresult *bend_init (bend_initrequest *q)
 316 {
 317     bend_initresult *r = (bend_initresult *)
 318         odr_malloc (q->stream, sizeof(*r));
 319     ZebraHandle zh;
 320     struct statserv_options_block *sob;
 321     char *user = NULL;
 322     char *passwd = NULL;
 323
 324     r->errcode = 0;
 325     r->errstring = 0;
 326     q->bend_sort = bend_sort;
 327     q->bend_delete = bend_delete;
 328     q->bend_esrequest = bend_esrequest;
 329     q->bend_segment = bend_segment;
 330     q->bend_search = bend_search;
 331     q->bend_fetch = bend_fetch;
 332     q->bend_scan = bend_scan;
 333
 334     q->implementation_name = "Z'mbol Information Server";
 335     q->implementation_version = "Z'mbol 1.0";
 336
 337     logf (LOG_DEBUG, "bend_init");
 338
 339     sob = statserv_getcontrol ();
 340     if (!(zh = zebra_open (sob->handle)))
 341     {
 342         logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
 343         r->errcode = 1;
 344         return r;
 345     }
 346     if (q->auth)
 347     {
 348         if (q->auth->which == Z_IdAuthentication_open)
 349         {
 350             char *openpass = xstrdup (q->auth->u.open);
 351             char *cp = strchr (openpass, '/');
 352             if (cp)
 353             {
 354                 *cp = '\0';
 355                 user = nmem_strdup (odr_getmem (q->stream), openpass);
 356                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
 357             }
 358             xfree (openpass);
 359         }
 360     }
 361     if (zebra_auth (zh->service, user, passwd))
 362     {
 363         r->errcode = 222;
 364         r->errstring = user;
 365         zebra_close (zh);
 366         return r;
 367     }
 368     r->handle = zh;
 369     return r;
 370 }
 371
 372 int bend_search (void *handle, bend_search_rr *r)
 373 {
 374     ZebraHandle zh = (ZebraHandle) handle;
 375
 376     r->hits = 0;
 377     r->errcode = 0;
 378     r->errstring = NULL;
 379
 380     logf (LOG_LOG, "ResultSet '%s'", r->setname);
 381     switch (r->query->which)
 382     {
 383     case Z_Query_type_1: case Z_Query_type_101:
 384         zebra_search_rpn (zh, r->decode, r->stream, r->query->u.type_1,
 385                           r->num_bases, r->basenames, r->setname);
 386         r->errcode = zh->errCode;
 387         r->errstring = zh->errString;
 388         r->hits = zh->hits;
 389         break;
 390     case Z_Query_type_2:
 391         r->errcode = 107;
 392         r->errstring = "type-2";
 393         break;
 394     default:
 395         r->errcode = 107;
 396     }
 397     return 0;
 398 }
 399
 400 int bend_fetch (void *handle, bend_fetch_rr *r)
 401 {
 402     ZebraHandle zh = (ZebraHandle) handle;
 403     ZebraRetrievalRecord retrievalRecord;
 404
 405     retrievalRecord.position = r->number;
 406
 407     r->last_in_set = 0;
 408     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 409                             r->request_format, 1, &retrievalRecord);
 410     if (zh->errCode)                  /* non Surrogate Diagnostic */
 411     {
 412         r->errcode = zh->errCode;
 413         r->errstring = zh->errString;
 414     }
 415     else if (retrievalRecord.errCode) /* Surrogate Diagnostic */
 416     {
 417         r->surrogate_flag = 1;
 418         r->errcode = retrievalRecord.errCode;
 419         r->errstring = retrievalRecord.errString;
 420         r->basename = retrievalRecord.base;
 421     }
 422     else                              /* Database Record */
 423     {
 424         r->errcode = 0;
 425         r->basename = retrievalRecord.base;
 426         r->record = retrievalRecord.buf;
 427         r->len = retrievalRecord.len;
 428         r->output_format = retrievalRecord.format;
 429     }
 430     return 0;
 431 }
 432
 433 static int bend_scan (void *handle, bend_scan_rr *r)
 434 {
 435     ZebraScanEntry *entries;
 436     ZebraHandle zh = (ZebraHandle) handle;
 437     int is_partial, i;
 438
 439     r->entries = (struct scan_entry *)
 440         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 441     zebra_scan (zh, r->stream, r->term,
 442                 r->attributeset,
 443                 r->num_bases, r->basenames,
 444                 &r->term_position,
 445                 &r->num_entries, &entries, &is_partial);
 446     if (is_partial)
 447         r->status = BEND_SCAN_PARTIAL;
 448     else
 449         r->status = BEND_SCAN_SUCCESS;
 450     for (i = 0; i < r->num_entries; i++)
 451     {
 452         r->entries[i].term = entries[i].term;
 453         r->entries[i].occurrences = entries[i].occurrences;
 454     }
 455     r->errcode = zh->errCode;
 456     r->errstring = zh->errString;
 457     return 0;
 458 }
 459
 460 void bend_close (void *handle)
 461 {
 462     zebra_close ((ZebraHandle) handle);
 463     xmalloc_trav("bend_close");
 464     nmem_print_list();
 465 }
 466
 467 int bend_sort (void *handle, bend_sort_rr *rr)
 468 {
 469     ZebraHandle zh = (ZebraHandle) handle;
 470
 471     zebra_sort (zh, rr->stream,
 472                 rr->num_input_setnames, (const char **) rr->input_setnames,
 473                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 474     rr->errcode = zh->errCode;
 475     rr->errstring = zh->errString;
 476     return 0;
 477 }
 478
 479 int bend_delete (void *handle, bend_delete_rr *rr)
 480 {
 481     ZebraHandle zh = (ZebraHandle) handle;
 482
 483     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 484                                               rr->num_setnames, rr->setnames,
 485                                               rr->statuses);
 486     return 0;
 487 }
 488
 489 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 490 {
 491     switch (r->toKeep->which)
 492     {
 493     case Z_ESAdminOriginPartToKeep_reIndex:
 494         yaz_log(LOG_LOG, "adm-reindex");
 495         break;
 496     case Z_ESAdminOriginPartToKeep_truncate:
 497         yaz_log(LOG_LOG, "adm-truncate");
 498         break;
 499     case Z_ESAdminOriginPartToKeep_drop:
 500         yaz_log(LOG_LOG, "adm-drop");
 501         break;
 502     case Z_ESAdminOriginPartToKeep_create:
 503         yaz_log(LOG_LOG, "adm-create");
 504         zebra_admin_create (zh, r->toKeep->databaseName);
 505         break;
 506     case Z_ESAdminOriginPartToKeep_import:
 507         yaz_log(LOG_LOG, "adm-import");
 508         zebra_admin_import_begin (zh, r->toKeep->databaseName);
 509         break;
 510     case Z_ESAdminOriginPartToKeep_refresh:
 511         yaz_log(LOG_LOG, "adm-refresh");
 512         break;
 513     case Z_ESAdminOriginPartToKeep_commit:
 514         yaz_log(LOG_LOG, "adm-commit");
 515         break;
 516     case Z_ESAdminOriginPartToKeep_shutdown:
 517         yaz_log(LOG_LOG, "shutdown");
 518         zebra_admin_shutdown(zh);
 519         break;
 520     case Z_ESAdminOriginPartToKeep_start:
 521         yaz_log(LOG_LOG, "start");
 522         zebra_admin_start(zh);
 523         break;
 524     default:
 525         yaz_log(LOG_LOG, "unknown admin");
 526         zh->errCode = 1001;
 527     }
 528     if (r->toKeep->databaseName)
 529     {
 530         yaz_log(LOG_LOG, "database %s", r->toKeep->databaseName);
 531     }
 532     return 0;
 533 }
 534
 535 static int es_admin (ZebraHandle zh, Z_Admin *r)
 536 {
 537     switch (r->which)
 538     {
 539     case Z_Admin_esRequest:
 540         es_admin_request (zh, r->u.esRequest);
 541         break;
 542     case Z_Admin_taskPackage:
 543         yaz_log (LOG_LOG, "adm taskpackage (unhandled)");
 544         break;
 545     default:
 546         zh->errCode = 1001;
 547         break;
 548     }
 549
 550     return 0;
 551 }
 552
 553 int bend_segment (void *handle, bend_segment_rr *rr)
 554 {
 555     ZebraHandle zh = (ZebraHandle) handle;
 556     Z_Segment *segment = rr->segment;
 557
 558     if (segment->num_segmentRecords)
 559         zebra_admin_import_segment (zh, rr->segment);
 560     else
 561         zebra_admin_import_end (zh);
 562     return 0;
 563 }
 564
 565 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 566 {
 567     ZebraHandle zh = (ZebraHandle) handle;
 568
 569     yaz_log(LOG_LOG, "function: %d", *rr->esr->function);
 570     if (rr->esr->packageName)
 571         yaz_log(LOG_LOG, "packagename: %s", rr->esr->packageName);
 572     yaz_log(LOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 573
 574     if (!rr->esr->taskSpecificParameters)
 575     {
 576         yaz_log (LOG_WARN, "No task specific parameters");
 577     }
 578     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 579     {
 580         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 581         rr->errcode = zh->errCode;
 582         rr->errstring = zh->errString;
 583     }
 584     else if (rr->esr->taskSpecificParameters->which == Z_External_itemOrder)
 585     {
 586         Z_ItemOrder *it = rr->esr->taskSpecificParameters->u.itemOrder;
 587         yaz_log (LOG_LOG, "Received ItemOrder");
 588         switch (it->which)
 589         {
 590 #ifdef ASN_COMPILED
 591         case Z_IOItemOrder_esRequest:
 592 #else
 593         case Z_ItemOrder_esRequest:
 594 #endif
 595         {
 596             Z_IORequest *ir = it->u.esRequest;
 597             Z_IOOriginPartToKeep *k = ir->toKeep;
 598             Z_IOOriginPartNotToKeep *n = ir->notToKeep;
 599
 600             if (k && k->contact)
 601             {
 602                 if (k->contact->name)
 603                     yaz_log(LOG_LOG, "contact name %s", k->contact->name);
 604                 if (k->contact->phone)
 605                     yaz_log(LOG_LOG, "contact phone %s", k->contact->phone);
 606                 if (k->contact->email)
 607                     yaz_log(LOG_LOG, "contact email %s", k->contact->email);
 608             }
 609             if (k->addlBilling)
 610             {
 611                 yaz_log(LOG_LOG, "Billing info (not shown)");
 612             }
 613
 614             if (n->resultSetItem)
 615             {
 616                 yaz_log(LOG_LOG, "resultsetItem");
 617                 yaz_log(LOG_LOG, "setId: %s", n->resultSetItem->resultSetId);
 618                 yaz_log(LOG_LOG, "item: %d", *n->resultSetItem->item);
 619             }
 620 #ifdef ASN_COMPILED
 621             if (n->itemRequest)
 622             {
 623                 Z_External *r = (Z_External*) n->itemRequest;
 624                 ILL_ItemRequest *item_req = 0;
 625                 ILL_Request *ill_req = 0;
 626                 if (r->direct_reference)
 627                 {
 628                     oident *ent = oid_getentbyoid(r->direct_reference);
 629                     if (ent)
 630                         yaz_log(LOG_LOG, "OID %s", ent->desc);
 631                     if (ent && ent->value == VAL_ISO_ILL_1)
 632                     {
 633                         yaz_log (LOG_LOG, "ItemRequest");
 634                         if (r->which == ODR_EXTERNAL_single)
 635                         {
 636                             odr_setbuf(rr->decode,
 637                                        r->u.single_ASN1_type->buf,
 638                                        r->u.single_ASN1_type->len, 0);
 639
 640                             if (!ill_ItemRequest (rr->decode, &item_req, 0, 0))
 641                             {
 642                                 yaz_log (LOG_LOG,
 643                                     "Couldn't decode ItemRequest %s near %d",
 644                                        odr_errmsg(odr_geterror(rr->decode)),
 645                                        odr_offset(rr->decode));
 646                                 yaz_log(LOG_LOG, "PDU dump:");
 647                                 odr_dumpBER(yaz_log_file(),
 648                                      r->u.single_ASN1_type->buf,
 649                                      r->u.single_ASN1_type->len);
 650                             }
 651                             if (rr->print)
 652                             {
 653                                 ill_ItemRequest (rr->print, &item_req, 0,
 654                                     "ItemRequest");
 655                                 odr_reset (rr->print);
 656                             }
 657                         }
 658                         if (!item_req && r->which == ODR_EXTERNAL_single)
 659                         {
 660                             yaz_log (LOG_LOG, "ILLRequest");
 661                             odr_setbuf(rr->decode,
 662                                        r->u.single_ASN1_type->buf,
 663                                        r->u.single_ASN1_type->len, 0);
 664
 665                             if (!ill_Request (rr->decode, &ill_req, 0, 0))
 666                             {
 667                                 yaz_log (LOG_LOG,
 668                                     "Couldn't decode ILLRequest %s near %d",
 669                                        odr_errmsg(odr_geterror(rr->decode)),
 670                                        odr_offset(rr->decode));
 671                                 yaz_log(LOG_LOG, "PDU dump:");
 672                                 odr_dumpBER(yaz_log_file(),
 673                                      r->u.single_ASN1_type->buf,
 674                                      r->u.single_ASN1_type->len);
 675                             }
 676                             if (rr->print)
 677                             {
 678                                 ill_Request (rr->print, &ill_req, 0,
 679                                     "ILLRequest");
 680                                 odr_reset (rr->print);
 681                             }
 682                         }
 683                     }
 684                 }
 685                 if (item_req)
 686                 {
 687                     yaz_log (LOG_LOG, "ILL protocol version = %d",
 688                              *item_req->protocol_version_num);
 689                 }
 690             }
 691 #endif
 692         }
 693         break;
 694         }
 695     }
 696     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 697     {
 698         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 699         yaz_log (LOG_LOG, "Received DB Update");
 700         if (up->which == Z_IUUpdate_esRequest)
 701         {
 702             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 703             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 704             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 705
 706             yaz_log (LOG_LOG, "action");
 707             if (toKeep->action)
 708             {
 709                 switch (*toKeep->action)
 710                 {
 711                 case Z_IUOriginPartToKeep_recordInsert:
 712                     yaz_log (LOG_LOG, "recordInsert");
 713                     break;
 714                 case Z_IUOriginPartToKeep_recordReplace:
 715                     yaz_log (LOG_LOG, "recordUpdate");
 716                     break;
 717                 case Z_IUOriginPartToKeep_recordDelete:
 718                     yaz_log (LOG_LOG, "recordDelete");
 719                     break;
 720                 case Z_IUOriginPartToKeep_elementUpdate:
 721                     yaz_log (LOG_LOG, "elementUpdate");
 722                     break;
 723                 case Z_IUOriginPartToKeep_specialUpdate:
 724                     yaz_log (LOG_LOG, "specialUpdate");
 725                     break;
 726                 case Z_ESAdminOriginPartToKeep_shutdown:
 727                     yaz_log (LOG_LOG, "shutDown");
 728                     break;
 729                 case Z_ESAdminOriginPartToKeep_start:
 730                     yaz_log (LOG_LOG, "start");
 731                     break;
 732                 default:
 733                     yaz_log (LOG_LOG, " unknown (%d)", *toKeep->action);
 734                 }
 735             }
 736             if (toKeep->databaseName)
 737             {
 738                 yaz_log (LOG_LOG, "database: %s", toKeep->databaseName);
 739                 if (!strcmp(toKeep->databaseName, "fault"))
 740                 {
 741                     rr->errcode = 109;
 742                     rr->errstring = toKeep->databaseName;
 743                 }
 744                 if (!strcmp(toKeep->databaseName, "accept"))
 745                     rr->errcode = -1;
 746             }
 747             if (notToKeep)
 748             {
 749                 int i;
 750                 for (i = 0; i < notToKeep->num; i++)
 751                 {
 752                     Z_External *rec = notToKeep->elements[i]->record;
 753
 754                     if (rec->direct_reference)
 755                     {
 756                         struct oident *oident;
 757                         oident = oid_getentbyoid(rec->direct_reference);
 758                         if (oident)
 759                             yaz_log (LOG_LOG, "record %d type %s", i,
 760                                      oident->desc);
 761                     }
 762                     switch (rec->which)
 763                     {
 764                     case Z_External_sutrs:
 765                         if (rec->u.octet_aligned->len > 170)
 766                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 767                                      rec->u.sutrs->len,
 768                                      rec->u.sutrs->buf);
 769                         else
 770                             yaz_log (LOG_LOG, "%d bytes:\n%s",
 771                                      rec->u.sutrs->len,
 772                                      rec->u.sutrs->buf);
 773                         break;
 774                     case Z_External_octet:
 775                         if (rec->u.octet_aligned->len > 170)
 776                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 777                                      rec->u.octet_aligned->len,
 778                                      rec->u.octet_aligned->buf);
 779                         else
 780                             yaz_log (LOG_LOG, "%d bytes\n%s",
 781                                      rec->u.octet_aligned->len,
 782                                      rec->u.octet_aligned->buf);
 783                     }
 784                 }
 785             }
 786         }
 787     }
 788     else
 789     {
 790         yaz_log (LOG_WARN, "Unknown Extended Service(%d)",
 791                  rr->esr->taskSpecificParameters->which);
 792
 793     }
 794     return 0;
 795 }
 796
 797 static void bend_start (struct statserv_options_block *sob)
 798 {
 799 #ifdef WIN32
 800
 801 #else
 802     if (!sob->inetd)
 803     {
 804         char *pidfile = "zebrasrv.pid";
 805         int fd = creat (pidfile, 0666);
 806         if (fd == -1)
 807             logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
 808         else
 809         {
 810             char pidstr[30];
 811
 812             sprintf (pidstr, "%ld", (long) getpid ());
 813             write (fd, pidstr, strlen(pidstr));
 814             close (fd);
 815         }
 816     }
 817 #endif
 818     if (sob->handle)
 819         zebra_stop((ZebraService) sob->handle);
 820     sob->handle = zebra_start(sob->configname);
 821 }
 822
 823 static void bend_stop(struct statserv_options_block *sob)
 824 {
 825     if (sob->handle)
 826     {
 827         ZebraService service = sob->handle;
 828         zebra_stop(service);
 829     }
 830 }
 831
 832 int main (int argc, char **argv)
 833 {
 834     struct statserv_options_block *sob;
 835
 836     sob = statserv_getcontrol ();
 837     strcpy (sob->configname, FNAME_CONFIG);
 838     sob->bend_start = bend_start;
 839     sob->bend_stop = bend_stop;
 840
 841     statserv_setcontrol (sob);
 842
 843     return statserv_main (argc, argv, bend_init, bend_close);
 844 }