index/zserver.c

   1 /* $Id: zserver.c,v 1.122 2004-08-25 09:28:01 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     zint count = 0;
 174     int no_terms;
 175     int i;
 176     int type = Z_Term_general;
 177     struct Z_External *ext;
 178     Z_SearchInfoReport *sr;
 179
 180     /* get no of terms for result set */
 181     no_terms = 0; /* zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0); */
 182       /* FIXME - Rsets don't know number of terms no more ??? */
 183     if (!no_terms)
 184         return;
 185
 186     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 187
 188     r->search_info->num_elements = 1;
 189     r->search_info->list =
 190         odr_malloc (r->stream, sizeof(*r->search_info->list));
 191     r->search_info->list[0] =
 192         odr_malloc (r->stream, sizeof(**r->search_info->list));
 193     r->search_info->list[0]->category = 0;
 194     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 195     ext = odr_malloc (r->stream, sizeof(*ext));
 196     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 197     ext->direct_reference =
 198         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 199     ext->indirect_reference = 0;
 200     ext->descriptor = 0;
 201     ext->which = Z_External_searchResult1;
 202     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 203     ext->u.searchResult1 = sr;
 204     sr->num = no_terms;
 205     sr->elements = odr_malloc (r->stream, sr->num *
 206                                sizeof(*sr->elements));
 207     for (i = 0; i<no_terms; i++)
 208     {
 209         Z_Term *term;
 210         char outbuf[1024];
 211         size_t len = sizeof(outbuf);
 212         /* FIXME - Can we just skip this ??? */
 213         /*
 214         zebra_resultSetTerms (zh, r->setname, i,
 215                               &count, &type, outbuf, &len);
 216         */
 217         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 218         sr->elements[i]->subqueryId = 0;
 219         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 220                                                  sizeof(bool_t));
 221         *sr->elements[i]->fullQuery = 0;
 222         sr->elements[i]->subqueryExpression =
 223             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 224         sr->elements[i]->subqueryExpression->which =
 225             Z_QueryExpression_term;
 226         sr->elements[i]->subqueryExpression->u.term =
 227             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 228         term = odr_malloc (r->stream, sizeof(Z_Term));
 229         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 230         switch (type)
 231         {
 232         case Z_Term_characterString:
 233             yaz_log (LOG_DEBUG, "term as characterString");
 234             term->which = Z_Term_characterString;
 235             term->u.characterString = odr_strdup (r->stream, outbuf);
 236             break;
 237         case Z_Term_general:
 238             yaz_log (LOG_DEBUG, "term as general");
 239             term->which = Z_Term_general;
 240             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 241             term->u.general->size = term->u.general->len = len;
 242             term->u.general->buf = odr_malloc (r->stream, len);
 243             memcpy (term->u.general->buf, outbuf, len);
 244             break;
 245         default:
 246             term->which = Z_Term_general;
 247             term->u.null = odr_nullval();
 248         }
 249         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 250         sr->elements[i]->subqueryInterpretation = 0;
 251         sr->elements[i]->subqueryRecommendation = 0;
 252         if (count > 2000000000)
 253             count = 2000000000;
 254         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 255         sr->elements[i]->subqueryWeight = 0;
 256         sr->elements[i]->resultsByDB = 0;
 257     }
 258 }
 259
 260 int bend_search (void *handle, bend_search_rr *r)
 261 {
 262     ZebraHandle zh = (ZebraHandle) handle;
 263
 264     r->hits = 0;
 265     r->errcode = 0;
 266     r->errstring = NULL;
 267
 268     if (zebra_select_databases (zh, r->num_bases,
 269                                 (const char **) r->basenames))
 270     {
 271         zebra_result (zh, &r->errcode, &r->errstring);
 272         return 0;
 273     }
 274     yaz_log (LOG_LOG, "ResultSet '%s'", r->setname);
 275     switch (r->query->which)
 276     {
 277     case Z_Query_type_1: case Z_Query_type_101:
 278         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 279                           r->setname, &r->hits);
 280         zebra_result (zh, &r->errcode, &r->errstring);
 281         if (!r->errcode)
 282             search_terms (zh, r);
 283         break;
 284     case Z_Query_type_2:
 285         r->errcode = 107;
 286         r->errstring = "type-2";
 287         break;
 288     default:
 289         r->errcode = 107;
 290     }
 291     return 0;
 292 }
 293
 294
 295 int bend_fetch (void *handle, bend_fetch_rr *r)
 296 {
 297     ZebraHandle zh = (ZebraHandle) handle;
 298     ZebraRetrievalRecord retrievalRecord;
 299
 300     retrievalRecord.position = r->number;
 301
 302     r->last_in_set = 0;
 303     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 304                             r->request_format, 1, &retrievalRecord);
 305     zebra_result (zh, &r->errcode, &r->errstring);
 306     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 307     if (r->errcode == 0 && retrievalRecord.errCode)
 308     {
 309         r->surrogate_flag = 1;
 310         r->errcode = retrievalRecord.errCode;
 311         r->errstring = retrievalRecord.errString;
 312         r->basename = retrievalRecord.base;
 313     }
 314     else if (r->errcode == 0)        /* Database Record */
 315     {
 316         r->errcode = 0;
 317         r->basename = retrievalRecord.base;
 318         r->record = retrievalRecord.buf;
 319         r->len = retrievalRecord.len;
 320         r->output_format = retrievalRecord.format;
 321     }
 322     return 0;
 323 }
 324
 325 static int bend_scan (void *handle, bend_scan_rr *r)
 326 {
 327     ZebraScanEntry *entries;
 328     ZebraHandle zh = (ZebraHandle) handle;
 329     int is_partial, i;
 330
 331     if (zebra_select_databases (zh, r->num_bases,
 332                                 (const char **) r->basenames))
 333     {
 334         zebra_result (zh, &r->errcode, &r->errstring);
 335         return 0;
 336     }
 337     if (r->step_size != 0 && *r->step_size != 0) {
 338         r->errcode = 205; /* "Only zero step size supported for Scan" */
 339         r->errstring = 0;
 340         return 0;
 341     }
 342     r->entries = (struct scan_entry *)
 343         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 344     zebra_scan (zh, r->stream, r->term,
 345                 r->attributeset,
 346                 &r->term_position,
 347                 &r->num_entries, &entries, &is_partial);
 348     if (is_partial)
 349         r->status = BEND_SCAN_PARTIAL;
 350     else
 351         r->status = BEND_SCAN_SUCCESS;
 352     for (i = 0; i < r->num_entries; i++)
 353     {
 354         r->entries[i].term = entries[i].term;
 355         r->entries[i].occurrences = entries[i].occurrences;
 356     }
 357     zebra_result (zh, &r->errcode, &r->errstring);
 358     return 0;
 359 }
 360
 361 void bend_close (void *handle)
 362 {
 363     zebra_close ((ZebraHandle) handle);
 364     xmalloc_trav("bend_close");
 365     nmem_print_list();
 366 }
 367
 368 int bend_sort (void *handle, bend_sort_rr *rr)
 369 {
 370     ZebraHandle zh = (ZebraHandle) handle;
 371
 372     zebra_sort (zh, rr->stream,
 373                 rr->num_input_setnames, (const char **) rr->input_setnames,
 374                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 375     zebra_result (zh, &rr->errcode, &rr->errstring);
 376     return 0;
 377 }
 378
 379 int bend_delete (void *handle, bend_delete_rr *rr)
 380 {
 381     ZebraHandle zh = (ZebraHandle) handle;
 382
 383     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 384                                               rr->num_setnames, rr->setnames,
 385                                               rr->statuses);
 386     return 0;
 387 }
 388
 389 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 390 {
 391     if (r->toKeep->databaseName)
 392     {
 393         yaz_log(LOG_LOG, "adm request database %s", r->toKeep->databaseName);
 394     }
 395     switch (r->toKeep->which)
 396     {
 397     case Z_ESAdminOriginPartToKeep_reIndex:
 398         yaz_log(LOG_LOG, "adm-reindex");
 399         break;
 400     case Z_ESAdminOriginPartToKeep_truncate:
 401         yaz_log(LOG_LOG, "adm-truncate");
 402         break;
 403     case Z_ESAdminOriginPartToKeep_drop:
 404         yaz_log(LOG_LOG, "adm-drop");
 405         zebra_drop_database (zh, r->toKeep->databaseName);
 406         break;
 407     case Z_ESAdminOriginPartToKeep_create:
 408         yaz_log(LOG_LOG, "adm-create %s", r->toKeep->databaseName);
 409         zebra_create_database (zh, r->toKeep->databaseName);
 410         break;
 411     case Z_ESAdminOriginPartToKeep_import:
 412         yaz_log(LOG_LOG, "adm-import");
 413         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 414                         r->toKeep->u.import->recordType);
 415         break;
 416     case Z_ESAdminOriginPartToKeep_refresh:
 417         yaz_log(LOG_LOG, "adm-refresh");
 418         break;
 419     case Z_ESAdminOriginPartToKeep_commit:
 420         yaz_log(LOG_LOG, "adm-commit");
 421         if (r->toKeep->databaseName)
 422             zebra_select_database(zh, r->toKeep->databaseName);
 423         zebra_commit(zh);
 424         break;
 425     case Z_ESAdminOriginPartToKeep_shutdown:
 426         yaz_log(LOG_LOG, "shutdown");
 427         zebra_admin_shutdown(zh);
 428         break;
 429     case Z_ESAdminOriginPartToKeep_start:
 430         yaz_log(LOG_LOG, "start");
 431         zebra_admin_start(zh);
 432         break;
 433     default:
 434         yaz_log(LOG_LOG, "unknown admin");
 435     }
 436     return 0;
 437 }
 438
 439 static int es_admin (ZebraHandle zh, Z_Admin *r)
 440 {
 441     switch (r->which)
 442     {
 443     case Z_Admin_esRequest:
 444         es_admin_request (zh, r->u.esRequest);
 445         break;
 446     case Z_Admin_taskPackage:
 447         yaz_log (LOG_LOG, "adm taskpackage (unhandled)");
 448         break;
 449     default:
 450         break;
 451     }
 452
 453     return 0;
 454 }
 455
 456 int bend_segment (void *handle, bend_segment_rr *rr)
 457 {
 458     ZebraHandle zh = (ZebraHandle) handle;
 459     Z_Segment *segment = rr->segment;
 460
 461     if (segment->num_segmentRecords)
 462         zebra_admin_import_segment (zh, rr->segment);
 463     else
 464         zebra_admin_import_end (zh);
 465     return 0;
 466 }
 467
 468 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 469 {
 470     ZebraHandle zh = (ZebraHandle) handle;
 471
 472     yaz_log(LOG_LOG, "function: %d", *rr->esr->function);
 473     if (rr->esr->packageName)
 474         yaz_log(LOG_LOG, "packagename: %s", rr->esr->packageName);
 475     yaz_log(LOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 476
 477     if (!rr->esr->taskSpecificParameters)
 478     {
 479         yaz_log (LOG_WARN, "No task specific parameters");
 480     }
 481     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 482     {
 483         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 484
 485         zebra_result (zh, &rr->errcode, &rr->errstring);
 486     }
 487     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 488     {
 489         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 490         yaz_log (LOG_LOG, "Received DB Update");
 491         if (up->which == Z_IUUpdate_esRequest)
 492         {
 493             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 494             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 495             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 496
 497             yaz_log (LOG_LOG, "action");
 498             if (toKeep->action)
 499             {
 500                 switch (*toKeep->action)
 501                 {
 502                 case Z_IUOriginPartToKeep_recordInsert:
 503                     yaz_log (LOG_LOG, "recordInsert");
 504                     break;
 505                 case Z_IUOriginPartToKeep_recordReplace:
 506                     yaz_log (LOG_LOG, "recordUpdate");
 507                     break;
 508                 case Z_IUOriginPartToKeep_recordDelete:
 509                     yaz_log (LOG_LOG, "recordDelete");
 510                     break;
 511                 case Z_IUOriginPartToKeep_elementUpdate:
 512                     yaz_log (LOG_LOG, "elementUpdate");
 513                     break;
 514                 case Z_IUOriginPartToKeep_specialUpdate:
 515                     yaz_log (LOG_LOG, "specialUpdate");
 516                     break;
 517                 case Z_ESAdminOriginPartToKeep_shutdown:
 518                     yaz_log (LOG_LOG, "shutDown");
 519                     break;
 520                 case Z_ESAdminOriginPartToKeep_start:
 521                     yaz_log (LOG_LOG, "start");
 522                     break;
 523                 default:
 524                     yaz_log (LOG_LOG, " unknown (%d)", *toKeep->action);
 525                 }
 526             }
 527             if (toKeep->databaseName)
 528             {
 529                 yaz_log (LOG_LOG, "database: %s", toKeep->databaseName);
 530
 531                 if (zebra_select_database(zh, toKeep->databaseName))
 532                     return 0;
 533             }
 534             else
 535             {
 536                 yaz_log (LOG_WARN, "no database supplied for ES Update");
 537                 rr->errcode = 1008;
 538                 rr->errstring = "database";
 539                 return 0;
 540             }
 541             if (notToKeep)
 542             {
 543                 int i;
 544                 zebra_begin_trans (zh, 1);
 545                 for (i = 0; i < notToKeep->num; i++)
 546                 {
 547                     Z_External *rec = notToKeep->elements[i]->record;
 548                     struct oident *oident = 0;
 549                     Odr_oct *opaque_recid = 0;
 550                     SYSNO sysno = 0;
 551
 552                     if (notToKeep->elements[i]->u.opaque)
 553                     {
 554                         switch(notToKeep->elements[i]->which)
 555                         {
 556                         case Z_IUSuppliedRecords_elem_opaque:
 557                             opaque_recid = notToKeep->elements[i]->u.opaque;
 558                             break; /* OK, recid already set */
 559                         case Z_IUSuppliedRecords_elem_number:
 560                             sysno = *notToKeep->elements[i]->u.number;
 561                             break;
 562                         }
 563                     }
 564                     if (rec->direct_reference)
 565                     {
 566                         oident = oid_getentbyoid(rec->direct_reference);
 567                         if (oident)
 568                             yaz_log (LOG_LOG, "record %d type %s", i,
 569                                      oident->desc);
 570                     }
 571                     switch (rec->which)
 572                     {
 573                     case Z_External_sutrs:
 574                         if (rec->u.octet_aligned->len > 170)
 575                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 576                                      rec->u.sutrs->len,
 577                                      rec->u.sutrs->buf);
 578                         else
 579                             yaz_log (LOG_LOG, "%d bytes:\n%s",
 580                                      rec->u.sutrs->len,
 581                                      rec->u.sutrs->buf);
 582                         break;
 583                     case Z_External_octet:
 584                         if (rec->u.octet_aligned->len > 170)
 585                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 586                                      rec->u.octet_aligned->len,
 587                                      rec->u.octet_aligned->buf);
 588                         else
 589                             yaz_log (LOG_LOG, "%d bytes\n%s",
 590                                      rec->u.octet_aligned->len,
 591                                      rec->u.octet_aligned->buf);
 592                     }
 593                     if (oident && oident->value != VAL_TEXT_XML)
 594                     {
 595                         rr->errcode = 224;
 596                         rr->errstring = "only XML update supported";
 597                         break;
 598                     }
 599                     if (rec->which == Z_External_octet)
 600                     {
 601                         int action = 0;
 602
 603                         if (*toKeep->action ==
 604                             Z_IUOriginPartToKeep_recordInsert)
 605                             action = 1;
 606                         if (*toKeep->action ==
 607                             Z_IUOriginPartToKeep_recordReplace)
 608                             action = 2;
 609                         if (*toKeep->action ==
 610                             Z_IUOriginPartToKeep_recordDelete)
 611                             action = 3;
 612                         if (*toKeep->action ==
 613                             Z_IUOriginPartToKeep_specialUpdate)
 614                             action = 4;
 615
 616                         if (!action)
 617                         {
 618                             rr->errcode = 224;
 619                             rr->errstring = "unsupported ES Update action";
 620                             break;
 621                         }
 622                         else if (opaque_recid)
 623                         {
 624                             int r = zebra_admin_exchange_record (
 625                                 zh,
 626                                 rec->u.octet_aligned->buf,
 627                                 rec->u.octet_aligned->len,
 628                                 opaque_recid->buf, opaque_recid->len,
 629                                 action);
 630                             if (r)
 631                             {
 632                                 rr->errcode = 224;
 633                                 rr->errstring = "record exchange failed";
 634                                 break;
 635                             }
 636                         }
 637                         else
 638                         {
 639                             int r = -1;
 640                             switch(action) {
 641                             case 1:
 642                                 r = zebra_insert_record(
 643                                     zh,
 644                                     0, /* recordType */
 645                                     &sysno,
 646                                     0, /* match */
 647                                     0, /* fname */
 648                                     rec->u.octet_aligned->buf,
 649                                     rec->u.octet_aligned->len,
 650                                     0);
 651                                 if (r)
 652                                 {
 653                                     rr->errcode = 224;
 654                                     rr->errstring = "insert_record failed";
 655                                 }
 656                                 break;
 657                             case 2:
 658                             case 4:
 659                                 r = zebra_update_record(
 660                                     zh,
 661                                     0, /* recordType */
 662                                     &sysno,
 663                                     0, /* match */
 664                                     0, /* fname */
 665                                     rec->u.octet_aligned->buf,
 666                                     rec->u.octet_aligned->len,
 667                                     1);
 668                                 if (r)
 669                                 {
 670                                     rr->errcode = 224;
 671                                     rr->errstring = "update_record failed";
 672                                 }
 673                                 break;
 674                             case 3:
 675                                 r = zebra_delete_record(
 676                                     zh,
 677                                     0, /* recordType */
 678                                     &sysno,
 679                                     0, /* match */
 680                                     0, /* fname */
 681                                     rec->u.octet_aligned->buf,
 682                                     rec->u.octet_aligned->len,
 683                                     0);
 684                                 if (r)
 685                                 {
 686                                     rr->errcode = 224;
 687                                     rr->errstring = "delete_record failed";
 688                                 }
 689                                 break;
 690                             }
 691                         }
 692                     }
 693                 }
 694                 zebra_end_trans (zh);
 695             }
 696         }
 697     }
 698     else
 699     {
 700         yaz_log (LOG_WARN, "Unknown Extended Service(%d)",
 701                  rr->esr->taskSpecificParameters->which);
 702         rr->errcode = 221;
 703
 704     }
 705     return 0;
 706 }
 707
 708 static void bend_start (struct statserv_options_block *sob)
 709 {
 710     if (sob->handle)
 711         zebra_stop((ZebraService) sob->handle);
 712     sob->handle = zebra_start(sob->configname);
 713     if (!sob->handle)
 714     {
 715         yaz_log (LOG_FATAL, "Failed to read config `%s'", sob->configname);
 716         exit (1);
 717     }
 718 #ifdef WIN32
 719
 720 #else
 721     if (!sob->inetd)
 722     {
 723         char pidfname[4096];
 724         struct flock area;
 725         int fd;
 726
 727         zebra_pidfname(sob->handle, pidfname);
 728
 729         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 730         if (fd == -1)
 731         {
 732             if (errno != EEXIST)
 733             {
 734                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 735                 exit(1);
 736             }
 737             fd = open(pidfname, O_RDWR, 0666);
 738             if (fd == -1)
 739             {
 740                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 741                 exit(1);
 742             }
 743         }
 744         area.l_type = F_WRLCK;
 745         area.l_whence = SEEK_SET;
 746         area.l_len = area.l_start = 0L;
 747         if (fcntl (fd, F_SETLK, &area) == -1)
 748         {
 749             yaz_log(LOG_ERRNO|LOG_FATAL, "Zebra server already running");
 750             exit(1);
 751         }
 752         else
 753         {
 754             char pidstr[30];
 755
 756             sprintf (pidstr, "%ld", (long) getpid ());
 757             write (fd, pidstr, strlen(pidstr));
 758         }
 759     }
 760 #endif
 761 }
 762
 763 static void bend_stop(struct statserv_options_block *sob)
 764 {
 765 #ifdef WIN32
 766
 767 #else
 768     if (!sob->inetd && sob->handle)
 769     {
 770         char pidfname[4096];
 771         zebra_pidfname(sob->handle, pidfname);
 772         unlink (pidfname);
 773     }
 774 #endif
 775     if (sob->handle)
 776     {
 777         ZebraService service = sob->handle;
 778         zebra_stop(service);
 779     }
 780 }
 781
 782 int main (int argc, char **argv)
 783 {
 784     struct statserv_options_block *sob;
 785
 786     sob = statserv_getcontrol ();
 787     strcpy (sob->configname, "zebra.cfg");
 788     sob->bend_start = bend_start;
 789     sob->bend_stop = bend_stop;
 790 #ifdef WIN32
 791     strcpy (sob->service_display_name, "Zebra Server");
 792 #endif
 793     statserv_setcontrol (sob);
 794
 795     return statserv_main (argc, argv, bend_init, bend_close);
 796 }