index/zserver.c

   1 /* $Id: zserver.c,v 1.131 2005-04-15 10:47:49 adam Exp $
   2    Copyright (C) 1995-2005
   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 <assert.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <fcntl.h>
  27 #ifdef WIN32
  28 #include <io.h>
  29 #include <process.h>
  30 #include <sys/locking.h>
  31 #else
  32 #include <unistd.h>
  33 #endif
  34
  35 #include <errno.h>
  36 #include <yaz/log.h>
  37 #include <yaz/ill.h>
  38 #include <yaz/yaz-util.h>
  39
  40 #include <sys/types.h>
  41
  42 #include "zserver.h"
  43
  44 static int bend_sort (void *handle, bend_sort_rr *rr);
  45 static int bend_delete (void *handle, bend_delete_rr *rr);
  46 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  47 static int bend_segment (void *handle, bend_segment_rr *rr);
  48 static int bend_search (void *handle, bend_search_rr *r);
  49 static int bend_fetch (void *handle, bend_fetch_rr *r);
  50 static int bend_scan (void *handle, bend_scan_rr *r);
  51
  52 bend_initresult *bend_init (bend_initrequest *q)
  53 {
  54     bend_initresult *r = (bend_initresult *)
  55         odr_malloc (q->stream, sizeof(*r));
  56     ZebraHandle zh;
  57     struct statserv_options_block *sob;
  58     char *user = NULL;
  59     char *passwd = NULL;
  60
  61     r->errcode = 0;
  62     r->errstring = 0;
  63     q->bend_sort = bend_sort;
  64     q->bend_delete = bend_delete;
  65     q->bend_esrequest = bend_esrequest;
  66     q->bend_segment = bend_segment;
  67     q->bend_search = bend_search;
  68     q->bend_fetch = bend_fetch;
  69     q->bend_scan = bend_scan;
  70
  71     q->implementation_name = "Zebra Information Server";
  72     q->implementation_version = "Zebra " ZEBRAVER;
  73
  74     yaz_log (YLOG_DEBUG, "bend_init");
  75
  76     sob = statserv_getcontrol ();
  77     if (!(zh = zebra_open (sob->handle)))
  78     {
  79         yaz_log (YLOG_WARN, "Failed to read config `%s'", sob->configname);
  80         r->errcode = 1;
  81         return r;
  82     }
  83     r->handle = zh;
  84     if (q->auth)
  85     {
  86         if (q->auth->which == Z_IdAuthentication_open)
  87         {
  88             char *openpass = xstrdup (q->auth->u.open);
  89             char *cp = strchr (openpass, '/');
  90             if (cp)
  91             {
  92                 *cp = '\0';
  93                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  94                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  95             }
  96             xfree (openpass);
  97         }
  98         else if (q->auth->which == Z_IdAuthentication_idPass)
  99         {
 100             Z_IdPass *idPass = q->auth->u.idPass;
 101
 102             user = idPass->userId;
 103             passwd = idPass->password;
 104         }
 105     }
 106     if (zebra_auth (zh, user, passwd))
 107     {
 108         r->errcode = 222;
 109         r->errstring = user;
 110         return r;
 111     }
 112     if (q->charneg_request) /* characater set and langauge negotiation? */
 113     {
 114         char **charsets = 0;
 115         int num_charsets;
 116         char **langs = 0;
 117         int num_langs = 0;
 118         int selected = 0;
 119         int i;
 120         NMEM nmem = nmem_create();
 121
 122         yaz_log (YLOG_LOG, "character set and language negotiation");
 123
 124         yaz_get_proposal_charneg (nmem, q->charneg_request,
 125                                   &charsets, &num_charsets,
 126                                   &langs, &num_langs, &selected);
 127
 128         for (i = 0; i < num_charsets; i++)
 129         {
 130             const char *right_name = "";
 131             /*
 132              * FIXME! It is like rudiment :-))
 133              * We have to support this short names of character sets,
 134              * because a lot servers in Russia to use own in during
 135              * character set and language negotiation still.
 136              */
 137
 138             if (!yaz_matchstr(charsets[i], "win")) {
 139                 right_name = "WINDOWS-1251";
 140             } else if (!yaz_matchstr(charsets[i], "koi")) {
 141                 right_name = "KOI8-R";
 142             } else if (!yaz_matchstr(charsets[i], "iso")) {
 143                 right_name = "ISO-8859-5";
 144             } else if (!yaz_matchstr(charsets[i], "dos")) {
 145                 right_name = "CP866";
 146             } else if (!yaz_matchstr(charsets[i], "uni")) {
 147                 right_name = "UTF-8";
 148             } else {
 149                 right_name = charsets[i];
 150             }
 151             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 152             {
 153                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 154                          charsets[i], right_name);
 155                 odr_set_charset (q->stream, right_name, "UTF-8");
 156                 if (selected)
 157                     zebra_record_encoding(zh, right_name);
 158                 zebra_octet_term_encoding(zh, right_name);
 159                 q->charneg_response =
 160                     yaz_set_response_charneg (q->stream, charsets[i],
 161                                               0, selected);
 162                 break;
 163             } else {
 164                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 165                          charsets[i], right_name);
 166             }
 167         }
 168         nmem_destroy(nmem);
 169     }
 170     return r;
 171 }
 172
 173 static void search_terms (ZebraHandle zh, bend_search_rr *r)
 174 {
 175     zint count = 0;
 176     int no_terms;
 177     int i;
 178     int type = Z_Term_general;
 179     struct Z_External *ext;
 180     Z_SearchInfoReport *sr;
 181
 182     /* get no of terms for result set */
 183     no_terms = 0; /* zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0); */
 184       /* FIXME - Rsets don't know number of terms no more ??? */
 185     if (!no_terms)
 186         return;
 187
 188     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 189
 190     r->search_info->num_elements = 1;
 191     r->search_info->list =
 192         odr_malloc (r->stream, sizeof(*r->search_info->list));
 193     r->search_info->list[0] =
 194         odr_malloc (r->stream, sizeof(**r->search_info->list));
 195     r->search_info->list[0]->category = 0;
 196     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 197     ext = odr_malloc (r->stream, sizeof(*ext));
 198     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 199     ext->direct_reference =
 200         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 201     ext->indirect_reference = 0;
 202     ext->descriptor = 0;
 203     ext->which = Z_External_searchResult1;
 204     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 205     ext->u.searchResult1 = sr;
 206     sr->num = no_terms;
 207     sr->elements = odr_malloc (r->stream, sr->num *
 208                                sizeof(*sr->elements));
 209     for (i = 0; i<no_terms; i++)
 210     {
 211         Z_Term *term;
 212         char outbuf[1024];
 213         size_t len = sizeof(outbuf);
 214         /* FIXME - Can we just skip this ??? */
 215         /*
 216         zebra_resultSetTerms (zh, r->setname, i,
 217                               &count, &type, outbuf, &len);
 218         */
 219         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 220         sr->elements[i]->subqueryId = 0;
 221         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 222                                                  sizeof(bool_t));
 223         *sr->elements[i]->fullQuery = 0;
 224         sr->elements[i]->subqueryExpression =
 225             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 226         sr->elements[i]->subqueryExpression->which =
 227             Z_QueryExpression_term;
 228         sr->elements[i]->subqueryExpression->u.term =
 229             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 230         term = odr_malloc (r->stream, sizeof(Z_Term));
 231         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 232         switch (type)
 233         {
 234         case Z_Term_characterString:
 235             yaz_log (YLOG_DEBUG, "term as characterString");
 236             term->which = Z_Term_characterString;
 237             term->u.characterString = odr_strdup (r->stream, outbuf);
 238             break;
 239         case Z_Term_general:
 240             yaz_log (YLOG_DEBUG, "term as general");
 241             term->which = Z_Term_general;
 242             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 243             term->u.general->size = term->u.general->len = len;
 244             term->u.general->buf = odr_malloc (r->stream, len);
 245             memcpy (term->u.general->buf, outbuf, len);
 246             break;
 247         default:
 248             term->which = Z_Term_general;
 249             term->u.null = odr_nullval();
 250         }
 251         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 252         sr->elements[i]->subqueryInterpretation = 0;
 253         sr->elements[i]->subqueryRecommendation = 0;
 254         if (count > 2000000000)
 255             count = 2000000000;
 256         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 257         sr->elements[i]->subqueryWeight = 0;
 258         sr->elements[i]->resultsByDB = 0;
 259     }
 260 }
 261
 262 int bend_search (void *handle, bend_search_rr *r)
 263 {
 264     ZebraHandle zh = (ZebraHandle) handle;
 265     zint zhits = 0;
 266     ZEBRA_RES res;
 267
 268     r->hits = 0;
 269     r->errcode = 0;
 270     r->errstring = NULL;
 271
 272     if (zebra_select_databases (zh, r->num_bases,
 273                                 (const char **) r->basenames))
 274     {
 275         zebra_result (zh, &r->errcode, &r->errstring);
 276         return 0;
 277     }
 278     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
 279     switch (r->query->which)
 280     {
 281     case Z_Query_type_1: case Z_Query_type_101:
 282         res = zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 283                                 r->setname, &zhits);
 284         if (zebra_errCode(zh) == 0)
 285         {
 286             if (zhits >   2147483646)
 287                 r->hits = 2147483647;
 288             else
 289             r->hits = (int) zhits;
 290             search_terms (zh, r);
 291         }
 292         else
 293             zebra_result (zh, &r->errcode, &r->errstring);
 294         break;
 295     case Z_Query_type_2:
 296         r->errcode = 107;
 297         r->errstring = "type-2";
 298         break;
 299     default:
 300         r->errcode = 107;
 301     }
 302     return 0;
 303 }
 304
 305
 306 int bend_fetch (void *handle, bend_fetch_rr *r)
 307 {
 308     ZebraHandle zh = (ZebraHandle) handle;
 309     ZebraRetrievalRecord retrievalRecord;
 310
 311     retrievalRecord.position = r->number;
 312
 313     r->last_in_set = 0;
 314     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 315                             r->request_format, 1, &retrievalRecord);
 316     zebra_result (zh, &r->errcode, &r->errstring);
 317     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 318     if (r->errcode == 0 && retrievalRecord.errCode)
 319     {
 320         r->surrogate_flag = 1;
 321         r->errcode = retrievalRecord.errCode;
 322         r->errstring = retrievalRecord.errString;
 323         r->basename = retrievalRecord.base;
 324     }
 325     else if (r->errcode == 0)        /* Database Record */
 326     {
 327         r->errcode = 0;
 328         r->basename = retrievalRecord.base;
 329         r->record = retrievalRecord.buf;
 330         r->len = retrievalRecord.len;
 331         r->output_format = retrievalRecord.format;
 332     }
 333     return 0;
 334 }
 335
 336 static int bend_scan (void *handle, bend_scan_rr *r)
 337 {
 338     ZebraScanEntry *entries;
 339     ZebraHandle zh = (ZebraHandle) handle;
 340     int is_partial, i;
 341
 342     if (zebra_select_databases (zh, r->num_bases,
 343                                 (const char **) r->basenames))
 344     {
 345         zebra_result (zh, &r->errcode, &r->errstring);
 346         return 0;
 347     }
 348     if (r->step_size != 0 && *r->step_size != 0) {
 349         r->errcode = 205; /* "Only zero step size supported for Scan" */
 350         r->errstring = 0;
 351         return 0;
 352     }
 353     r->entries = (struct scan_entry *)
 354         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 355     zebra_scan (zh, r->stream, r->term,
 356                 r->attributeset,
 357                 &r->term_position,
 358                 &r->num_entries, &entries, &is_partial);
 359     if (is_partial)
 360         r->status = BEND_SCAN_PARTIAL;
 361     else
 362         r->status = BEND_SCAN_SUCCESS;
 363     for (i = 0; i < r->num_entries; i++)
 364     {
 365         r->entries[i].term = entries[i].term;
 366         r->entries[i].occurrences = entries[i].occurrences;
 367     }
 368     zebra_result (zh, &r->errcode, &r->errstring);
 369     return 0;
 370 }
 371
 372 void bend_close (void *handle)
 373 {
 374     zebra_close ((ZebraHandle) handle);
 375     xmalloc_trav("bend_close");
 376     nmem_print_list();
 377 }
 378
 379 int bend_sort (void *handle, bend_sort_rr *rr)
 380 {
 381     ZebraHandle zh = (ZebraHandle) handle;
 382
 383     zebra_sort (zh, rr->stream,
 384                 rr->num_input_setnames, (const char **) rr->input_setnames,
 385                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 386     zebra_result (zh, &rr->errcode, &rr->errstring);
 387     return 0;
 388 }
 389
 390 int bend_delete (void *handle, bend_delete_rr *rr)
 391 {
 392     ZebraHandle zh = (ZebraHandle) handle;
 393
 394     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 395                                               rr->num_setnames, rr->setnames,
 396                                               rr->statuses);
 397     return 0;
 398 }
 399
 400 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 401 {
 402     if (r->toKeep->databaseName)
 403     {
 404         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 405     }
 406     switch (r->toKeep->which)
 407     {
 408     case Z_ESAdminOriginPartToKeep_reIndex:
 409         yaz_log(YLOG_LOG, "adm-reindex");
 410         break;
 411     case Z_ESAdminOriginPartToKeep_truncate:
 412         yaz_log(YLOG_LOG, "adm-truncate");
 413         break;
 414     case Z_ESAdminOriginPartToKeep_drop:
 415         yaz_log(YLOG_LOG, "adm-drop");
 416         zebra_drop_database (zh, r->toKeep->databaseName);
 417         break;
 418     case Z_ESAdminOriginPartToKeep_create:
 419         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 420         zebra_create_database (zh, r->toKeep->databaseName);
 421         break;
 422     case Z_ESAdminOriginPartToKeep_import:
 423         yaz_log(YLOG_LOG, "adm-import");
 424         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 425                         r->toKeep->u.import->recordType);
 426         break;
 427     case Z_ESAdminOriginPartToKeep_refresh:
 428         yaz_log(YLOG_LOG, "adm-refresh");
 429         break;
 430     case Z_ESAdminOriginPartToKeep_commit:
 431         yaz_log(YLOG_LOG, "adm-commit");
 432         if (r->toKeep->databaseName)
 433             zebra_select_database(zh, r->toKeep->databaseName);
 434         zebra_commit(zh);
 435         break;
 436     case Z_ESAdminOriginPartToKeep_shutdown:
 437         yaz_log(YLOG_LOG, "shutdown");
 438         zebra_admin_shutdown(zh);
 439         break;
 440     case Z_ESAdminOriginPartToKeep_start:
 441         yaz_log(YLOG_LOG, "start");
 442         zebra_admin_start(zh);
 443         break;
 444     default:
 445         yaz_log(YLOG_LOG, "unknown admin");
 446     }
 447     return 0;
 448 }
 449
 450 static int es_admin (ZebraHandle zh, Z_Admin *r)
 451 {
 452     switch (r->which)
 453     {
 454     case Z_Admin_esRequest:
 455         es_admin_request (zh, r->u.esRequest);
 456         break;
 457     case Z_Admin_taskPackage:
 458         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 459         break;
 460     default:
 461         break;
 462     }
 463
 464     return 0;
 465 }
 466
 467 int bend_segment (void *handle, bend_segment_rr *rr)
 468 {
 469     ZebraHandle zh = (ZebraHandle) handle;
 470     Z_Segment *segment = rr->segment;
 471
 472     if (segment->num_segmentRecords)
 473         zebra_admin_import_segment (zh, rr->segment);
 474     else
 475         zebra_admin_import_end (zh);
 476     return 0;
 477 }
 478
 479 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 480 {
 481     ZebraHandle zh = (ZebraHandle) handle;
 482
 483     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 484     if (rr->esr->packageName)
 485         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 486     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 487
 488     if (!rr->esr->taskSpecificParameters)
 489     {
 490         yaz_log (YLOG_WARN, "No task specific parameters");
 491     }
 492     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 493     {
 494         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 495
 496         zebra_result (zh, &rr->errcode, &rr->errstring);
 497     }
 498     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 499     {
 500         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 501         yaz_log (YLOG_LOG, "Received DB Update");
 502         if (up->which == Z_IUUpdate_esRequest)
 503         {
 504             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 505             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 506             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 507
 508             yaz_log (YLOG_LOG, "action");
 509             if (toKeep->action)
 510             {
 511                 switch (*toKeep->action)
 512                 {
 513                 case Z_IUOriginPartToKeep_recordInsert:
 514                     yaz_log (YLOG_LOG, "recordInsert");
 515                     break;
 516                 case Z_IUOriginPartToKeep_recordReplace:
 517                     yaz_log (YLOG_LOG, "recordUpdate");
 518                     break;
 519                 case Z_IUOriginPartToKeep_recordDelete:
 520                     yaz_log (YLOG_LOG, "recordDelete");
 521                     break;
 522                 case Z_IUOriginPartToKeep_elementUpdate:
 523                     yaz_log (YLOG_LOG, "elementUpdate");
 524                     break;
 525                 case Z_IUOriginPartToKeep_specialUpdate:
 526                     yaz_log (YLOG_LOG, "specialUpdate");
 527                     break;
 528                 case Z_ESAdminOriginPartToKeep_shutdown:
 529                     yaz_log (YLOG_LOG, "shutDown");
 530                     break;
 531                 case Z_ESAdminOriginPartToKeep_start:
 532                     yaz_log (YLOG_LOG, "start");
 533                     break;
 534                 default:
 535                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 536                 }
 537             }
 538             if (toKeep->databaseName)
 539             {
 540                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 541
 542                 if (zebra_select_database(zh, toKeep->databaseName))
 543                     return 0;
 544             }
 545             else
 546             {
 547                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 548                 rr->errcode = 1008;
 549                 rr->errstring = "database";
 550                 return 0;
 551             }
 552             if (notToKeep)
 553             {
 554                 int i;
 555                 zebra_begin_trans (zh, 1);
 556                 for (i = 0; i < notToKeep->num; i++)
 557                 {
 558                     Z_External *rec = notToKeep->elements[i]->record;
 559                     struct oident *oident = 0;
 560                     Odr_oct *opaque_recid = 0;
 561                     SYSNO sysno = 0;
 562
 563                     if (notToKeep->elements[i]->u.opaque)
 564                     {
 565                         switch(notToKeep->elements[i]->which)
 566                         {
 567                         case Z_IUSuppliedRecords_elem_opaque:
 568                             opaque_recid = notToKeep->elements[i]->u.opaque;
 569                             break; /* OK, recid already set */
 570                         case Z_IUSuppliedRecords_elem_number:
 571                             sysno = *notToKeep->elements[i]->u.number;
 572                             break;
 573                         }
 574                     }
 575                     if (rec->direct_reference)
 576                     {
 577                         oident = oid_getentbyoid(rec->direct_reference);
 578                         if (oident)
 579                             yaz_log (YLOG_LOG, "record %d type %s", i,
 580                                      oident->desc);
 581                     }
 582                     switch (rec->which)
 583                     {
 584                     case Z_External_sutrs:
 585                         if (rec->u.octet_aligned->len > 170)
 586                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 587                                      rec->u.sutrs->len,
 588                                      rec->u.sutrs->buf);
 589                         else
 590                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 591                                      rec->u.sutrs->len,
 592                                      rec->u.sutrs->buf);
 593                         break;
 594                     case Z_External_octet:
 595                         if (rec->u.octet_aligned->len > 170)
 596                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 597                                      rec->u.octet_aligned->len,
 598                                      rec->u.octet_aligned->buf);
 599                         else
 600                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 601                                      rec->u.octet_aligned->len,
 602                                      rec->u.octet_aligned->buf);
 603                     }
 604                     if (oident && oident->value != VAL_TEXT_XML)
 605                     {
 606                         rr->errcode = 224;
 607                         rr->errstring = "only XML update supported";
 608                         break;
 609                     }
 610                     if (rec->which == Z_External_octet)
 611                     {
 612                         int action = 0;
 613
 614                         if (*toKeep->action ==
 615                             Z_IUOriginPartToKeep_recordInsert)
 616                             action = 1;
 617                         if (*toKeep->action ==
 618                             Z_IUOriginPartToKeep_recordReplace)
 619                             action = 2;
 620                         if (*toKeep->action ==
 621                             Z_IUOriginPartToKeep_recordDelete)
 622                             action = 3;
 623                         if (*toKeep->action ==
 624                             Z_IUOriginPartToKeep_specialUpdate)
 625                             action = 4;
 626
 627                         if (!action)
 628                         {
 629                             rr->errcode = 224;
 630                             rr->errstring = "unsupported ES Update action";
 631                             break;
 632                         }
 633                         else if (opaque_recid)
 634                         {
 635                             int r = zebra_admin_exchange_record (
 636                                 zh,
 637                                 rec->u.octet_aligned->buf,
 638                                 rec->u.octet_aligned->len,
 639                                 opaque_recid->buf, opaque_recid->len,
 640                                 action);
 641                             if (r)
 642                             {
 643                                 rr->errcode = 224;
 644                                 rr->errstring = "record exchange failed";
 645                                 break;
 646                             }
 647                         }
 648                         else
 649                         {
 650                             ZEBRA_RES r = ZEBRA_FAIL;
 651                             switch(action) {
 652                             case 1:
 653                                 r = zebra_insert_record(
 654                                     zh,
 655                                     0, /* recordType */
 656                                     &sysno,
 657                                     0, /* match */
 658                                     0, /* fname */
 659                                     rec->u.octet_aligned->buf,
 660                                     rec->u.octet_aligned->len,
 661                                     0);
 662                                 if (r == ZEBRA_FAIL)
 663                                 {
 664                                     rr->errcode = 224;
 665                                     rr->errstring = "insert_record failed";
 666                                 }
 667                                 break;
 668                             case 2:
 669                             case 4:
 670                                 r = zebra_update_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                                     1);
 679                                 if (r == ZEBRA_FAIL)
 680                                 {
 681                                     rr->errcode = 224;
 682                                     rr->errstring = "update_record failed";
 683                                 }
 684                                 break;
 685                             case 3:
 686                                 r = zebra_delete_record(
 687                                     zh,
 688                                     0, /* recordType */
 689                                     &sysno,
 690                                     0, /* match */
 691                                     0, /* fname */
 692                                     rec->u.octet_aligned->buf,
 693                                     rec->u.octet_aligned->len,
 694                                     0);
 695                                 if (r == ZEBRA_FAIL)
 696                                 {
 697                                     rr->errcode = 224;
 698                                     rr->errstring = "delete_record failed";
 699                                 }
 700                                 break;
 701                             }
 702                         }
 703                     }
 704                 }
 705                 zebra_end_trans (zh);
 706             }
 707         }
 708     }
 709     else
 710     {
 711         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 712                  rr->esr->taskSpecificParameters->which);
 713         rr->errcode = 221;
 714
 715     }
 716     return 0;
 717 }
 718
 719 static void bend_start (struct statserv_options_block *sob)
 720 {
 721     if (sob->handle)
 722         zebra_stop((ZebraService) sob->handle);
 723     sob->handle = zebra_start(sob->configname);
 724     if (!sob->handle)
 725     {
 726         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 727         exit (1);
 728     }
 729 #ifdef WIN32
 730
 731 #else
 732     if (!sob->inetd)
 733     {
 734         char pidfname[4096];
 735         struct flock area;
 736         int fd;
 737
 738         zebra_pidfname(sob->handle, pidfname);
 739
 740         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 741         if (fd == -1)
 742         {
 743             if (errno != EEXIST)
 744             {
 745                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 746                 exit(1);
 747             }
 748             fd = open(pidfname, O_RDWR, 0666);
 749             if (fd == -1)
 750             {
 751                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 752                 exit(1);
 753             }
 754         }
 755         area.l_type = F_WRLCK;
 756         area.l_whence = SEEK_SET;
 757         area.l_len = area.l_start = 0L;
 758         if (fcntl (fd, F_SETLK, &area) == -1)
 759         {
 760             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 761             exit(1);
 762         }
 763         else
 764         {
 765             char pidstr[30];
 766
 767             sprintf (pidstr, "%ld", (long) getpid ());
 768             write (fd, pidstr, strlen(pidstr));
 769         }
 770     }
 771 #endif
 772 }
 773
 774 static void bend_stop(struct statserv_options_block *sob)
 775 {
 776 #ifdef WIN32
 777
 778 #else
 779     if (!sob->inetd && sob->handle)
 780     {
 781         char pidfname[4096];
 782         zebra_pidfname(sob->handle, pidfname);
 783         unlink (pidfname);
 784     }
 785 #endif
 786     if (sob->handle)
 787     {
 788         ZebraService service = sob->handle;
 789         zebra_stop(service);
 790     }
 791 }
 792
 793 int main (int argc, char **argv)
 794 {
 795     struct statserv_options_block *sob;
 796
 797     sob = statserv_getcontrol ();
 798     strcpy (sob->configname, "zebra.cfg");
 799     sob->bend_start = bend_start;
 800     sob->bend_stop = bend_stop;
 801 #ifdef WIN32
 802     strcpy (sob->service_display_name, "Zebra Server");
 803 #endif
 804     statserv_setcontrol (sob);
 805
 806     return statserv_main (argc, argv, bend_init, bend_close);
 807 }