index/zserver.c

   1 /* $Id: zserver.c,v 1.117 2004-08-02 10:12:06 adam Exp $
   2    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
   3    Index Data Aps
   4
   5 This file is part of the Zebra server.
   6
   7 Zebra is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Zebra; see the file LICENSE.zebra.  If not, write to the
  19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21 */
  22
  23 #include <stdio.h>
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #ifdef WIN32
  27 #include <io.h>
  28 #include <process.h>
  29 #include <sys/locking.h>
  30 #else
  31 #include <unistd.h>
  32 #endif
  33
  34 #include <errno.h>
  35 #include <yaz/log.h>
  36 #include <yaz/ill.h>
  37 #include <yaz/yaz-util.h>
  38
  39 #include <sys/types.h>
  40
  41 #include "zserver.h"
  42
  43 static int bend_sort (void *handle, bend_sort_rr *rr);
  44 static int bend_delete (void *handle, bend_delete_rr *rr);
  45 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  46 static int bend_segment (void *handle, bend_segment_rr *rr);
  47 static int bend_search (void *handle, bend_search_rr *r);
  48 static int bend_fetch (void *handle, bend_fetch_rr *r);
  49 static int bend_scan (void *handle, bend_scan_rr *r);
  50
  51 bend_initresult *bend_init (bend_initrequest *q)
  52 {
  53     bend_initresult *r = (bend_initresult *)
  54         odr_malloc (q->stream, sizeof(*r));
  55     ZebraHandle zh;
  56     struct statserv_options_block *sob;
  57     char *user = NULL;
  58     char *passwd = NULL;
  59
  60     r->errcode = 0;
  61     r->errstring = 0;
  62     q->bend_sort = bend_sort;
  63     q->bend_delete = bend_delete;
  64     q->bend_esrequest = bend_esrequest;
  65     q->bend_segment = bend_segment;
  66     q->bend_search = bend_search;
  67     q->bend_fetch = bend_fetch;
  68     q->bend_scan = bend_scan;
  69
  70     q->implementation_name = "Zebra Information Server";
  71     q->implementation_version = "Zebra " ZEBRAVER;
  72
  73     yaz_log (LOG_DEBUG, "bend_init");
  74
  75     sob = statserv_getcontrol ();
  76     if (!(zh = zebra_open (sob->handle)))
  77     {
  78         yaz_log (LOG_WARN, "Failed to read config `%s'", sob->configname);
  79         r->errcode = 1;
  80         return r;
  81     }
  82     r->handle = zh;
  83     if (q->auth)
  84     {
  85         if (q->auth->which == Z_IdAuthentication_open)
  86         {
  87             char *openpass = xstrdup (q->auth->u.open);
  88             char *cp = strchr (openpass, '/');
  89             if (cp)
  90             {
  91                 *cp = '\0';
  92                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  93                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  94             }
  95             xfree (openpass);
  96         }
  97         else if (q->auth->which == Z_IdAuthentication_idPass)
  98         {
  99             Z_IdPass *idPass = q->auth->u.idPass;
 100
 101             user = idPass->userId;
 102             passwd = idPass->password;
 103         }
 104     }
 105     if (zebra_auth (zh, user, passwd))
 106     {
 107         r->errcode = 222;
 108         r->errstring = user;
 109         return r;
 110     }
 111     if (q->charneg_request) /* characater set and langauge negotiation? */
 112     {
 113         char **charsets = 0;
 114         int num_charsets;
 115         char **langs = 0;
 116         int num_langs = 0;
 117         int selected = 0;
 118         int i;
 119         NMEM nmem = nmem_create();
 120
 121         yaz_log (LOG_LOG, "character set and language negotiation");
 122
 123         yaz_get_proposal_charneg (nmem, q->charneg_request,
 124                                   &charsets, &num_charsets,
 125                                   &langs, &num_langs, &selected);
 126
 127         for (i = 0; i < num_charsets; i++)
 128         {
 129             const char *right_name = "";
 130             /*
 131              * FIXME! It is like rudiment :-))
 132              * We have to support this short names of character sets,
 133              * because a lot servers in Russia to use own in during
 134              * character set and language negotiation still.
 135              */
 136
 137             if (!yaz_matchstr(charsets[i], "win")) {
 138                 right_name = "WINDOWS-1251";
 139             } else if (!yaz_matchstr(charsets[i], "koi")) {
 140                 right_name = "KOI8-R";
 141             } else if (!yaz_matchstr(charsets[i], "iso")) {
 142                 right_name = "ISO-8859-5";
 143             } else if (!yaz_matchstr(charsets[i], "dos")) {
 144                 right_name = "CP866";
 145             } else if (!yaz_matchstr(charsets[i], "uni")) {
 146                 right_name = "UTF-8";
 147             } else {
 148                 right_name = charsets[i];
 149             }
 150             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 151             {
 152                 yaz_log (LOG_LOG, "charset %d %s (proper name %s): OK", i,
 153                          charsets[i], right_name);
 154                 odr_set_charset (q->stream, right_name, "UTF-8");
 155                 if (selected)
 156                     zebra_record_encoding (zh, right_name);
 157                 q->charneg_response =
 158                     yaz_set_response_charneg (q->stream, charsets[i],
 159                                               0, selected);
 160                 break;
 161             } else {
 162                 yaz_log (LOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 163                          charsets[i], right_name);
 164             }
 165         }
 166         nmem_destroy(nmem);
 167     }
 168     return r;
 169 }
 170
 171 static void search_terms (ZebraHandle zh, bend_search_rr *r)
 172 {
 173     int count;
 174     int no_terms;
 175     int i;
 176     int type;
 177     struct Z_External *ext;
 178     Z_SearchInfoReport *sr;
 179
 180     /* get no of terms for result set */
 181     no_terms = zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0);
 182     if (!no_terms)
 183         return;
 184
 185     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 186
 187     r->search_info->num_elements = 1;
 188     r->search_info->list =
 189         odr_malloc (r->stream, sizeof(*r->search_info->list));
 190     r->search_info->list[0] =
 191         odr_malloc (r->stream, sizeof(**r->search_info->list));
 192     r->search_info->list[0]->category = 0;
 193     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 194     ext = odr_malloc (r->stream, sizeof(*ext));
 195     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 196     ext->direct_reference =
 197         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 198     ext->indirect_reference = 0;
 199     ext->descriptor = 0;
 200     ext->which = Z_External_searchResult1;
 201     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 202     ext->u.searchResult1 = sr;
 203     sr->num = no_terms;
 204     sr->elements = odr_malloc (r->stream, sr->num *
 205                                sizeof(*sr->elements));
 206     for (i = 0; i<no_terms; i++)
 207     {
 208         Z_Term *term;
 209         char outbuf[1024];
 210         size_t len = sizeof(outbuf);
 211         zebra_resultSetTerms (zh, r->setname, i,
 212                               &count, &type, outbuf, &len);
 213
 214         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 215         sr->elements[i]->subqueryId = 0;
 216         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 217                                                  sizeof(bool_t));
 218         *sr->elements[i]->fullQuery = 0;
 219         sr->elements[i]->subqueryExpression =
 220             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 221         sr->elements[i]->subqueryExpression->which =
 222             Z_QueryExpression_term;
 223         sr->elements[i]->subqueryExpression->u.term =
 224             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 225         term = odr_malloc (r->stream, sizeof(Z_Term));
 226         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 227         switch (type)
 228         {
 229         case Z_Term_characterString:
 230             yaz_log (LOG_DEBUG, "term as characterString");
 231             term->which = Z_Term_characterString;
 232             term->u.characterString = odr_strdup (r->stream, outbuf);
 233             break;
 234         case Z_Term_general:
 235             yaz_log (LOG_DEBUG, "term as general");
 236             term->which = Z_Term_general;
 237             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 238             term->u.general->size = term->u.general->len = len;
 239             term->u.general->buf = odr_malloc (r->stream, len);
 240             memcpy (term->u.general->buf, outbuf, len);
 241             break;
 242         default:
 243             term->which = Z_Term_general;
 244             term->u.null = odr_nullval();
 245         }
 246         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 247         sr->elements[i]->subqueryInterpretation = 0;
 248         sr->elements[i]->subqueryRecommendation = 0;
 249         sr->elements[i]->subqueryCount = odr_intdup (r->stream, count);
 250         sr->elements[i]->subqueryWeight = 0;
 251         sr->elements[i]->resultsByDB = 0;
 252     }
 253 }
 254
 255 int bend_search (void *handle, bend_search_rr *r)
 256 {
 257     ZebraHandle zh = (ZebraHandle) handle;
 258
 259     r->hits = 0;
 260     r->errcode = 0;
 261     r->errstring = NULL;
 262
 263     if (zebra_select_databases (zh, r->num_bases,
 264                                 (const char **) r->basenames))
 265     {
 266         zebra_result (zh, &r->errcode, &r->errstring);
 267         return 0;
 268     }
 269     yaz_log (LOG_LOG, "ResultSet '%s'", r->setname);
 270     switch (r->query->which)
 271     {
 272     case Z_Query_type_1: case Z_Query_type_101:
 273         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 274                           r->setname, &r->hits);
 275         zebra_result (zh, &r->errcode, &r->errstring);
 276         if (!r->errcode)
 277             search_terms (zh, r);
 278         break;
 279     case Z_Query_type_2:
 280         r->errcode = 107;
 281         r->errstring = "type-2";
 282         break;
 283     default:
 284         r->errcode = 107;
 285     }
 286     return 0;
 287 }
 288
 289
 290 int bend_fetch (void *handle, bend_fetch_rr *r)
 291 {
 292     ZebraHandle zh = (ZebraHandle) handle;
 293     ZebraRetrievalRecord retrievalRecord;
 294
 295     retrievalRecord.position = r->number;
 296
 297     r->last_in_set = 0;
 298     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 299                             r->request_format, 1, &retrievalRecord);
 300     zebra_result (zh, &r->errcode, &r->errstring);
 301     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 302     if (r->errcode == 0 && retrievalRecord.errCode)
 303     {
 304         r->surrogate_flag = 1;
 305         r->errcode = retrievalRecord.errCode;
 306         r->errstring = retrievalRecord.errString;
 307         r->basename = retrievalRecord.base;
 308     }
 309     else if (r->errcode == 0)        /* Database Record */
 310     {
 311         r->errcode = 0;
 312         r->basename = retrievalRecord.base;
 313         r->record = retrievalRecord.buf;
 314         r->len = retrievalRecord.len;
 315         r->output_format = retrievalRecord.format;
 316     }
 317     return 0;
 318 }
 319
 320 static int bend_scan (void *handle, bend_scan_rr *r)
 321 {
 322     ZebraScanEntry *entries;
 323     ZebraHandle zh = (ZebraHandle) handle;
 324     int is_partial, i;
 325
 326     if (zebra_select_databases (zh, r->num_bases,
 327                                 (const char **) r->basenames))
 328     {
 329         zebra_result (zh, &r->errcode, &r->errstring);
 330         return 0;
 331     }
 332     if (r->step_size != 0 && *r->step_size != 0) {
 333         r->errcode = 205; /* "Only zero step size supported for Scan" */
 334         r->errstring = 0;
 335         return 0;
 336     }
 337     r->entries = (struct scan_entry *)
 338         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 339     zebra_scan (zh, r->stream, r->term,
 340                 r->attributeset,
 341                 &r->term_position,
 342                 &r->num_entries, &entries, &is_partial);
 343     if (is_partial)
 344         r->status = BEND_SCAN_PARTIAL;
 345     else
 346         r->status = BEND_SCAN_SUCCESS;
 347     for (i = 0; i < r->num_entries; i++)
 348     {
 349         r->entries[i].term = entries[i].term;
 350         r->entries[i].occurrences = entries[i].occurrences;
 351     }
 352     zebra_result (zh, &r->errcode, &r->errstring);
 353     return 0;
 354 }
 355
 356 void bend_close (void *handle)
 357 {
 358     zebra_close ((ZebraHandle) handle);
 359     xmalloc_trav("bend_close");
 360     nmem_print_list();
 361 }
 362
 363 int bend_sort (void *handle, bend_sort_rr *rr)
 364 {
 365     ZebraHandle zh = (ZebraHandle) handle;
 366
 367     zebra_sort (zh, rr->stream,
 368                 rr->num_input_setnames, (const char **) rr->input_setnames,
 369                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 370     zebra_result (zh, &rr->errcode, &rr->errstring);
 371     return 0;
 372 }
 373
 374 int bend_delete (void *handle, bend_delete_rr *rr)
 375 {
 376     ZebraHandle zh = (ZebraHandle) handle;
 377
 378     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 379                                               rr->num_setnames, rr->setnames,
 380                                               rr->statuses);
 381     return 0;
 382 }
 383
 384 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 385 {
 386     if (r->toKeep->databaseName)
 387     {
 388         yaz_log(LOG_LOG, "adm request database %s", r->toKeep->databaseName);
 389     }
 390     switch (r->toKeep->which)
 391     {
 392     case Z_ESAdminOriginPartToKeep_reIndex:
 393         yaz_log(LOG_LOG, "adm-reindex");
 394         break;
 395     case Z_ESAdminOriginPartToKeep_truncate:
 396         yaz_log(LOG_LOG, "adm-truncate");
 397         break;
 398     case Z_ESAdminOriginPartToKeep_drop:
 399         yaz_log(LOG_LOG, "adm-drop");
 400         zebra_drop_database (zh, r->toKeep->databaseName);
 401         break;
 402     case Z_ESAdminOriginPartToKeep_create:
 403         yaz_log(LOG_LOG, "adm-create %s", r->toKeep->databaseName);
 404         zebra_create_database (zh, r->toKeep->databaseName);
 405         break;
 406     case Z_ESAdminOriginPartToKeep_import:
 407         yaz_log(LOG_LOG, "adm-import");
 408         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 409                         r->toKeep->u.import->recordType);
 410         break;
 411     case Z_ESAdminOriginPartToKeep_refresh:
 412         yaz_log(LOG_LOG, "adm-refresh");
 413         break;
 414     case Z_ESAdminOriginPartToKeep_commit:
 415         yaz_log(LOG_LOG, "adm-commit");
 416         if (r->toKeep->databaseName)
 417             zebra_select_database(zh, r->toKeep->databaseName);
 418         zebra_commit(zh);
 419         break;
 420     case Z_ESAdminOriginPartToKeep_shutdown:
 421         yaz_log(LOG_LOG, "shutdown");
 422         zebra_admin_shutdown(zh);
 423         break;
 424     case Z_ESAdminOriginPartToKeep_start:
 425         yaz_log(LOG_LOG, "start");
 426         zebra_admin_start(zh);
 427         break;
 428     default:
 429         yaz_log(LOG_LOG, "unknown admin");
 430     }
 431     return 0;
 432 }
 433
 434 static int es_admin (ZebraHandle zh, Z_Admin *r)
 435 {
 436     switch (r->which)
 437     {
 438     case Z_Admin_esRequest:
 439         es_admin_request (zh, r->u.esRequest);
 440         break;
 441     case Z_Admin_taskPackage:
 442         yaz_log (LOG_LOG, "adm taskpackage (unhandled)");
 443         break;
 444     default:
 445         break;
 446     }
 447
 448     return 0;
 449 }
 450
 451 int bend_segment (void *handle, bend_segment_rr *rr)
 452 {
 453     ZebraHandle zh = (ZebraHandle) handle;
 454     Z_Segment *segment = rr->segment;
 455
 456     if (segment->num_segmentRecords)
 457         zebra_admin_import_segment (zh, rr->segment);
 458     else
 459         zebra_admin_import_end (zh);
 460     return 0;
 461 }
 462
 463 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 464 {
 465     ZebraHandle zh = (ZebraHandle) handle;
 466
 467     yaz_log(LOG_LOG, "function: %d", *rr->esr->function);
 468     if (rr->esr->packageName)
 469         yaz_log(LOG_LOG, "packagename: %s", rr->esr->packageName);
 470     yaz_log(LOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 471
 472     if (!rr->esr->taskSpecificParameters)
 473     {
 474         yaz_log (LOG_WARN, "No task specific parameters");
 475     }
 476     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 477     {
 478         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 479
 480         zebra_result (zh, &rr->errcode, &rr->errstring);
 481     }
 482     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 483     {
 484         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 485         yaz_log (LOG_LOG, "Received DB Update");
 486         if (up->which == Z_IUUpdate_esRequest)
 487         {
 488             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 489             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 490             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 491
 492             yaz_log (LOG_LOG, "action");
 493             if (toKeep->action)
 494             {
 495                 switch (*toKeep->action)
 496                 {
 497                 case Z_IUOriginPartToKeep_recordInsert:
 498                     yaz_log (LOG_LOG, "recordInsert");
 499                     break;
 500                 case Z_IUOriginPartToKeep_recordReplace:
 501                     yaz_log (LOG_LOG, "recordUpdate");
 502                     break;
 503                 case Z_IUOriginPartToKeep_recordDelete:
 504                     yaz_log (LOG_LOG, "recordDelete");
 505                     break;
 506                 case Z_IUOriginPartToKeep_elementUpdate:
 507                     yaz_log (LOG_LOG, "elementUpdate");
 508                     break;
 509                 case Z_IUOriginPartToKeep_specialUpdate:
 510                     yaz_log (LOG_LOG, "specialUpdate");
 511                     break;
 512                 case Z_ESAdminOriginPartToKeep_shutdown:
 513                     yaz_log (LOG_LOG, "shutDown");
 514                     break;
 515                 case Z_ESAdminOriginPartToKeep_start:
 516                     yaz_log (LOG_LOG, "start");
 517                     break;
 518                 default:
 519                     yaz_log (LOG_LOG, " unknown (%d)", *toKeep->action);
 520                 }
 521             }
 522             if (toKeep->databaseName)
 523             {
 524                 yaz_log (LOG_LOG, "database: %s", toKeep->databaseName);
 525
 526                 if (zebra_select_database(zh, toKeep->databaseName))
 527                     return 0;
 528             }
 529             else
 530             {
 531                 yaz_log (LOG_WARN, "no database supplied for ES Update");
 532                 rr->errcode = 1008;
 533                 rr->errstring = "database";
 534                 return 0;
 535             }
 536             if (notToKeep)
 537             {
 538                 int i;
 539                 zebra_begin_trans (zh, 1);
 540                 for (i = 0; i < notToKeep->num; i++)
 541                 {
 542                     Z_External *rec = notToKeep->elements[i]->record;
 543                     struct oident *oident = 0;
 544                     Odr_oct *opaque_recid = 0;
 545                     int sysno = 0;
 546
 547                     if (notToKeep->elements[i]->u.opaque)
 548                     {
 549                         switch(notToKeep->elements[i]->which)
 550                         {
 551                         case Z_IUSuppliedRecords_elem_opaque:
 552                             opaque_recid = notToKeep->elements[i]->u.opaque;
 553                             break; /* OK, recid already set */
 554                         case Z_IUSuppliedRecords_elem_number:
 555                             sysno = *notToKeep->elements[i]->u.number;
 556                             break;
 557                         }
 558                     }
 559                     if (rec->direct_reference)
 560                     {
 561                         oident = oid_getentbyoid(rec->direct_reference);
 562                         if (oident)
 563                             yaz_log (LOG_LOG, "record %d type %s", i,
 564                                      oident->desc);
 565                     }
 566                     switch (rec->which)
 567                     {
 568                     case Z_External_sutrs:
 569                         if (rec->u.octet_aligned->len > 170)
 570                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 571                                      rec->u.sutrs->len,
 572                                      rec->u.sutrs->buf);
 573                         else
 574                             yaz_log (LOG_LOG, "%d bytes:\n%s",
 575                                      rec->u.sutrs->len,
 576                                      rec->u.sutrs->buf);
 577                         break;
 578                     case Z_External_octet:
 579                         if (rec->u.octet_aligned->len > 170)
 580                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 581                                      rec->u.octet_aligned->len,
 582                                      rec->u.octet_aligned->buf);
 583                         else
 584                             yaz_log (LOG_LOG, "%d bytes\n%s",
 585                                      rec->u.octet_aligned->len,
 586                                      rec->u.octet_aligned->buf);
 587                     }
 588                     if (oident && oident->value != VAL_TEXT_XML)
 589                     {
 590                         rr->errcode = 224;
 591                         rr->errstring = "only XML update supported";
 592                         break;
 593                     }
 594                     if (rec->which == Z_External_octet)
 595                     {
 596                         int action = 0;
 597
 598                         if (*toKeep->action ==
 599                             Z_IUOriginPartToKeep_recordInsert)
 600                             action = 1;
 601                         if (*toKeep->action ==
 602                             Z_IUOriginPartToKeep_recordReplace)
 603                             action = 2;
 604                         if (*toKeep->action ==
 605                             Z_IUOriginPartToKeep_recordDelete)
 606                             action = 3;
 607                         if (*toKeep->action ==
 608                             Z_IUOriginPartToKeep_specialUpdate)
 609                             action = 4;
 610
 611                         if (!action)
 612                         {
 613                             rr->errcode = 224;
 614                             rr->errstring = "unsupported ES Update action";
 615                             break;
 616                         }
 617                         else if (opaque_recid)
 618                         {
 619                             int r = zebra_admin_exchange_record (
 620                                 zh,
 621                                 rec->u.octet_aligned->buf,
 622                                 rec->u.octet_aligned->len,
 623                                 opaque_recid->buf, opaque_recid->len,
 624                                 action);
 625                             if (r)
 626                             {
 627                                 rr->errcode = 224;
 628                                 rr->errstring = "record exchange failed";
 629                                 break;
 630                             }
 631                         }
 632                         else
 633                         {
 634                             int r = -1;
 635                             switch(action) {
 636                             case 1:
 637                                 r = zebra_insert_record(
 638                                     zh,
 639                                     0, /* recordType */
 640                                     &sysno,
 641                                     0, /* match */
 642                                     0, /* fname */
 643                                     rec->u.octet_aligned->buf,
 644                                     rec->u.octet_aligned->len,
 645                                     0);
 646                                 if (r)
 647                                 {
 648                                     rr->errcode = 224;
 649                                     rr->errstring = "insert_record failed";
 650                                 }
 651                                 break;
 652                             case 2:
 653                             case 4:
 654                                 r = zebra_update_record(
 655                                     zh,
 656                                     0, /* recordType */
 657                                     &sysno,
 658                                     0, /* match */
 659                                     0, /* fname */
 660                                     rec->u.octet_aligned->buf,
 661                                     rec->u.octet_aligned->len,
 662                                     1);
 663                                 if (r)
 664                                 {
 665                                     rr->errcode = 224;
 666                                     rr->errstring = "update_record failed";
 667                                 }
 668                                 break;
 669                             case 3:
 670                                 r = zebra_delete_record(
 671                                     zh,
 672                                     0, /* recordType */
 673                                     &sysno,
 674                                     0, /* match */
 675                                     0, /* fname */
 676                                     rec->u.octet_aligned->buf,
 677                                     rec->u.octet_aligned->len,
 678                                     0);
 679                                 if (r)
 680                                 {
 681                                     rr->errcode = 224;
 682                                     rr->errstring = "delete_record failed";
 683                                 }
 684                                 break;
 685                             }
 686                         }
 687                     }
 688                 }
 689                 zebra_end_trans (zh);
 690             }
 691         }
 692     }
 693     else
 694     {
 695         yaz_log (LOG_WARN, "Unknown Extended Service(%d)",
 696                  rr->esr->taskSpecificParameters->which);
 697         rr->errcode = 221;
 698
 699     }
 700     return 0;
 701 }
 702
 703 static void bend_start (struct statserv_options_block *sob)
 704 {
 705     if (sob->handle)
 706         zebra_stop((ZebraService) sob->handle);
 707     sob->handle = zebra_start(sob->configname);
 708     if (!sob->handle)
 709     {
 710         yaz_log (LOG_FATAL, "Failed to read config `%s'", sob->configname);
 711         exit (1);
 712     }
 713 #ifdef WIN32
 714
 715 #else
 716     if (!sob->inetd)
 717     {
 718         char pidfname[4096];
 719         struct flock area;
 720         int fd;
 721
 722         zebra_pidfname(sob->handle, pidfname);
 723
 724         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 725         if (fd == -1)
 726         {
 727             if (errno != EEXIST)
 728             {
 729                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 730                 exit(1);
 731             }
 732             fd = open(pidfname, O_RDWR, 0666);
 733             if (fd == -1)
 734             {
 735                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 736                 exit(1);
 737             }
 738         }
 739         area.l_type = F_WRLCK;
 740         area.l_whence = SEEK_SET;
 741         area.l_len = area.l_start = 0L;
 742         if (fcntl (fd, F_SETLK, &area) == -1)
 743         {
 744             yaz_log(LOG_ERRNO|LOG_FATAL, "Zebra server already running");
 745             exit(1);
 746         }
 747         else
 748         {
 749             char pidstr[30];
 750
 751             sprintf (pidstr, "%ld", (long) getpid ());
 752             write (fd, pidstr, strlen(pidstr));
 753         }
 754     }
 755 #endif
 756 }
 757
 758 static void bend_stop(struct statserv_options_block *sob)
 759 {
 760 #ifdef WIN32
 761
 762 #else
 763     if (!sob->inetd && sob->handle)
 764     {
 765         char pidfname[4096];
 766         zebra_pidfname(sob->handle, pidfname);
 767         unlink (pidfname);
 768     }
 769 #endif
 770     if (sob->handle)
 771     {
 772         ZebraService service = sob->handle;
 773         zebra_stop(service);
 774     }
 775 }
 776
 777 int main (int argc, char **argv)
 778 {
 779     struct statserv_options_block *sob;
 780
 781     sob = statserv_getcontrol ();
 782     strcpy (sob->configname, "zebra.cfg");
 783     sob->bend_start = bend_start;
 784     sob->bend_stop = bend_stop;
 785 #ifdef WIN32
 786     strcpy (sob->service_display_name, "Zebra Server");
 787 #endif
 788     statserv_setcontrol (sob);
 789
 790     return statserv_main (argc, argv, bend_init, bend_close);
 791 }