index/zserver.c

   1 /* $Id: zserver.c,v 1.140 2005-09-13 11:51:06 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 #endif
  32 #if HAVE_UNISTD_H
  33 #include <unistd.h>
  34 #endif
  35
  36 #include <errno.h>
  37 #include <yaz/log.h>
  38 #include <yaz/ill.h>
  39 #include <yaz/yaz-util.h>
  40 #include <yaz/diagbib1.h>
  41
  42 #include <sys/types.h>
  43
  44 #include "zserver.h"
  45
  46 static int bend_sort (void *handle, bend_sort_rr *rr);
  47 static int bend_delete (void *handle, bend_delete_rr *rr);
  48 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  49 static int bend_segment (void *handle, bend_segment_rr *rr);
  50 static int bend_search (void *handle, bend_search_rr *r);
  51 static int bend_fetch (void *handle, bend_fetch_rr *r);
  52 static int bend_scan (void *handle, bend_scan_rr *r);
  53
  54 bend_initresult *bend_init (bend_initrequest *q)
  55 {
  56     bend_initresult *r = (bend_initresult *)
  57         odr_malloc (q->stream, sizeof(*r));
  58     ZebraHandle zh;
  59     struct statserv_options_block *sob;
  60     char *user = NULL;
  61     char *passwd = NULL;
  62
  63     r->errcode = 0;
  64     r->errstring = 0;
  65     q->bend_sort = bend_sort;
  66     q->bend_delete = bend_delete;
  67     q->bend_esrequest = bend_esrequest;
  68     q->bend_segment = bend_segment;
  69     q->bend_search = bend_search;
  70     q->bend_fetch = bend_fetch;
  71     q->bend_scan = bend_scan;
  72
  73     q->implementation_name = "Zebra Information Server";
  74     q->implementation_version = "Zebra " ZEBRAVER;
  75
  76     yaz_log (YLOG_DEBUG, "bend_init");
  77
  78     sob = statserv_getcontrol ();
  79     if (!(zh = zebra_open (sob->handle, 0)))
  80     {
  81         yaz_log (YLOG_WARN, "Failed to read config `%s'", sob->configname);
  82         r->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
  83         return r;
  84     }
  85     r->handle = zh;
  86     if (q->auth)
  87     {
  88         if (q->auth->which == Z_IdAuthentication_open)
  89         {
  90             char *openpass = xstrdup (q->auth->u.open);
  91             char *cp = strchr (openpass, '/');
  92             if (cp)
  93             {
  94                 *cp = '\0';
  95                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  96                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  97             }
  98             xfree (openpass);
  99         }
 100         else if (q->auth->which == Z_IdAuthentication_idPass)
 101         {
 102             Z_IdPass *idPass = q->auth->u.idPass;
 103
 104             user = idPass->userId;
 105             passwd = idPass->password;
 106         }
 107     }
 108     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
 109     {
 110         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
 111         r->errstring = user;
 112         return r;
 113     }
 114     if (q->charneg_request) /* characater set and langauge negotiation? */
 115     {
 116         char **charsets = 0;
 117         int num_charsets;
 118         char **langs = 0;
 119         int num_langs = 0;
 120         int selected = 0;
 121         int i;
 122         NMEM nmem = nmem_create();
 123
 124         yaz_log (YLOG_LOG, "character set and language negotiation");
 125
 126         yaz_get_proposal_charneg (nmem, q->charneg_request,
 127                                   &charsets, &num_charsets,
 128                                   &langs, &num_langs, &selected);
 129
 130         for (i = 0; i < num_charsets; i++)
 131         {
 132             const char *right_name = "";
 133             /*
 134              * FIXME! It is like rudiment :-))
 135              * We have to support this short names of character sets,
 136              * because a lot servers in Russia to use own in during
 137              * character set and language negotiation still.
 138              */
 139
 140             if (!yaz_matchstr(charsets[i], "win")) {
 141                 right_name = "WINDOWS-1251";
 142             } else if (!yaz_matchstr(charsets[i], "koi")) {
 143                 right_name = "KOI8-R";
 144             } else if (!yaz_matchstr(charsets[i], "iso")) {
 145                 right_name = "ISO-8859-5";
 146             } else if (!yaz_matchstr(charsets[i], "dos")) {
 147                 right_name = "CP866";
 148             } else if (!yaz_matchstr(charsets[i], "uni")) {
 149                 right_name = "UTF-8";
 150             } else {
 151                 right_name = charsets[i];
 152             }
 153             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 154             {
 155                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 156                          charsets[i], right_name);
 157                 odr_set_charset (q->stream, right_name, "UTF-8");
 158                 if (selected)
 159                     zebra_record_encoding(zh, right_name);
 160                 zebra_octet_term_encoding(zh, right_name);
 161                 q->charneg_response =
 162                     yaz_set_response_charneg (q->stream, charsets[i],
 163                                               0, selected);
 164                 break;
 165             } else {
 166                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 167                          charsets[i], right_name);
 168             }
 169         }
 170         nmem_destroy(nmem);
 171     }
 172     return r;
 173 }
 174
 175 static void search_terms(ZebraHandle zh, bend_search_rr *r)
 176 {
 177     int no_terms;
 178     int i;
 179     int type = Z_Term_general;
 180     struct Z_External *ext;
 181     Z_SearchInfoReport *sr;
 182
 183     zebra_result_set_term_no(zh, r->setname, &no_terms);
 184     if (!no_terms)
 185         return;
 186
 187     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 188
 189     r->search_info->num_elements = 1;
 190     r->search_info->list =
 191         odr_malloc (r->stream, sizeof(*r->search_info->list));
 192     r->search_info->list[0] =
 193         odr_malloc (r->stream, sizeof(**r->search_info->list));
 194     r->search_info->list[0]->category = 0;
 195     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 196     ext = odr_malloc (r->stream, sizeof(*ext));
 197     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 198     ext->direct_reference =
 199         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 200     ext->indirect_reference = 0;
 201     ext->descriptor = 0;
 202     ext->which = Z_External_searchResult1;
 203     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 204     ext->u.searchResult1 = sr;
 205     sr->num = no_terms;
 206     sr->elements = odr_malloc (r->stream, sr->num *
 207                                sizeof(*sr->elements));
 208     for (i = 0; i<no_terms; i++)
 209     {
 210         Z_Term *term;
 211         zint count;
 212         int approx;
 213         char outbuf[1024];
 214         size_t len = sizeof(outbuf);
 215
 216         zebra_result_set_term_info(zh, r->setname, i,
 217                                    &count, &approx, outbuf, &len,
 218                                    0 /* term_ref_id */ );
 219
 220         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 221         sr->elements[i]->subqueryId = 0;
 222         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 223                                                  sizeof(bool_t));
 224         *sr->elements[i]->fullQuery = 0;
 225         sr->elements[i]->subqueryExpression =
 226             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 227         sr->elements[i]->subqueryExpression->which =
 228             Z_QueryExpression_term;
 229         sr->elements[i]->subqueryExpression->u.term =
 230             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 231         term = odr_malloc (r->stream, sizeof(Z_Term));
 232         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 233         switch (type)
 234         {
 235         case Z_Term_characterString:
 236             yaz_log (YLOG_DEBUG, "term as characterString");
 237             term->which = Z_Term_characterString;
 238             term->u.characterString = odr_strdup (r->stream, outbuf);
 239             break;
 240         case Z_Term_general:
 241             yaz_log (YLOG_DEBUG, "term as general");
 242             term->which = Z_Term_general;
 243             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 244             term->u.general->size = term->u.general->len = len;
 245             term->u.general->buf = odr_malloc (r->stream, len);
 246             memcpy (term->u.general->buf, outbuf, len);
 247             break;
 248         default:
 249             term->which = Z_Term_general;
 250             term->u.null = odr_nullval();
 251         }
 252         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 253         sr->elements[i]->subqueryInterpretation = 0;
 254         sr->elements[i]->subqueryRecommendation = 0;
 255         if (count > 2000000000)
 256             count = 2000000000;
 257         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 258         sr->elements[i]->subqueryWeight = 0;
 259         sr->elements[i]->resultsByDB = 0;
 260     }
 261 }
 262
 263 int bend_search (void *handle, bend_search_rr *r)
 264 {
 265     ZebraHandle zh = (ZebraHandle) handle;
 266     zint zhits = 0;
 267     ZEBRA_RES res;
 268
 269     res = zebra_select_databases (zh, r->num_bases,
 270                                   (const char **) r->basenames);
 271     if (res != ZEBRA_OK)
 272     {
 273         zebra_result (zh, &r->errcode, &r->errstring);
 274         return 0;
 275     }
 276     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
 277     switch (r->query->which)
 278     {
 279     case Z_Query_type_1: case Z_Query_type_101:
 280         res = zebra_search_RPN(zh, r->stream, r->query->u.type_1,
 281                                r->setname, &zhits);
 282         if (res != ZEBRA_OK)
 283             zebra_result(zh, &r->errcode, &r->errstring);
 284         else
 285         {
 286             if (zhits >   2147483646)
 287                 r->hits = 2147483647;
 288             else
 289             r->hits = (int) zhits;
 290             search_terms (zh, r);
 291         }
 292         break;
 293     case Z_Query_type_2:
 294         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 295         r->errstring = "type-2";
 296         break;
 297     default:
 298         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 299     }
 300     return 0;
 301 }
 302
 303
 304 int bend_fetch (void *handle, bend_fetch_rr *r)
 305 {
 306     ZebraHandle zh = (ZebraHandle) handle;
 307     ZebraRetrievalRecord retrievalRecord;
 308     ZEBRA_RES res;
 309
 310     retrievalRecord.position = r->number;
 311
 312     r->last_in_set = 0;
 313     res = zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 314                                   r->request_format, 1, &retrievalRecord);
 315     if (res != ZEBRA_OK)
 316     {
 317         /* non-surrogate diagnostic */
 318         zebra_result (zh, &r->errcode, &r->errstring);
 319     }
 320     else if (retrievalRecord.errCode)
 321     {
 322         /* surrogate diagnostic (diagnostic per record) */
 323         r->surrogate_flag = 1;
 324         r->errcode = retrievalRecord.errCode;
 325         r->errstring = retrievalRecord.errString;
 326         r->basename = retrievalRecord.base;
 327     }
 328     else
 329     {
 330         r->basename = retrievalRecord.base;
 331         r->record = retrievalRecord.buf;
 332         r->len = retrievalRecord.len;
 333         r->output_format = retrievalRecord.format;
 334     }
 335     return 0;
 336 }
 337
 338 static int bend_scan (void *handle, bend_scan_rr *r)
 339 {
 340     ZebraScanEntry *entries;
 341     ZebraHandle zh = (ZebraHandle) handle;
 342     int is_partial, i;
 343     ZEBRA_RES res;
 344
 345     res = zebra_select_databases(zh, r->num_bases,
 346                                  (const char **) r->basenames);
 347     if (res != ZEBRA_OK)
 348     {
 349         zebra_result (zh, &r->errcode, &r->errstring);
 350         return 0;
 351     }
 352     if (r->step_size != 0 && *r->step_size != 0) {
 353         r->errcode = YAZ_BIB1_ONLY_ZERO_STEP_SIZE_SUPPORTED_FOR_SCAN;
 354         r->errstring = 0;
 355         return 0;
 356     }
 357     r->entries = (struct scan_entry *)
 358         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 359     res = zebra_scan(zh, r->stream, r->term,
 360                      r->attributeset,
 361                      &r->term_position,
 362                      &r->num_entries, &entries, &is_partial,
 363                      0 /* setname */);
 364     if (res == ZEBRA_OK)
 365     {
 366         if (is_partial)
 367             r->status = BEND_SCAN_PARTIAL;
 368         else
 369             r->status = BEND_SCAN_SUCCESS;
 370         for (i = 0; i < r->num_entries; i++)
 371         {
 372             r->entries[i].term = entries[i].term;
 373             r->entries[i].occurrences = entries[i].occurrences;
 374         }
 375     }
 376     else
 377     {
 378         r->status = BEND_SCAN_PARTIAL;
 379         zebra_result(zh, &r->errcode, &r->errstring);
 380     }
 381     return 0;
 382 }
 383
 384 void bend_close (void *handle)
 385 {
 386     zebra_close ((ZebraHandle) handle);
 387     xmalloc_trav("bend_close");
 388     nmem_print_list();
 389 }
 390
 391 int bend_sort (void *handle, bend_sort_rr *rr)
 392 {
 393     ZebraHandle zh = (ZebraHandle) handle;
 394
 395     zebra_sort (zh, rr->stream,
 396                 rr->num_input_setnames, (const char **) rr->input_setnames,
 397                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 398     zebra_result (zh, &rr->errcode, &rr->errstring);
 399     return 0;
 400 }
 401
 402 int bend_delete (void *handle, bend_delete_rr *rr)
 403 {
 404     ZebraHandle zh = (ZebraHandle) handle;
 405
 406     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 407                                               rr->num_setnames, rr->setnames,
 408                                               rr->statuses);
 409     return 0;
 410 }
 411
 412 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 413 {
 414     if (r->toKeep->databaseName)
 415     {
 416         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 417     }
 418     switch (r->toKeep->which)
 419     {
 420     case Z_ESAdminOriginPartToKeep_reIndex:
 421         yaz_log(YLOG_LOG, "adm-reindex");
 422         break;
 423     case Z_ESAdminOriginPartToKeep_truncate:
 424         yaz_log(YLOG_LOG, "adm-truncate");
 425         break;
 426     case Z_ESAdminOriginPartToKeep_drop:
 427         yaz_log(YLOG_LOG, "adm-drop");
 428         zebra_drop_database (zh, r->toKeep->databaseName);
 429         break;
 430     case Z_ESAdminOriginPartToKeep_create:
 431         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 432         zebra_create_database (zh, r->toKeep->databaseName);
 433         break;
 434     case Z_ESAdminOriginPartToKeep_import:
 435         yaz_log(YLOG_LOG, "adm-import");
 436         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 437                         r->toKeep->u.import->recordType);
 438         break;
 439     case Z_ESAdminOriginPartToKeep_refresh:
 440         yaz_log(YLOG_LOG, "adm-refresh");
 441         break;
 442     case Z_ESAdminOriginPartToKeep_commit:
 443         yaz_log(YLOG_LOG, "adm-commit");
 444         if (r->toKeep->databaseName)
 445             zebra_select_database(zh, r->toKeep->databaseName);
 446         zebra_commit(zh);
 447         break;
 448     case Z_ESAdminOriginPartToKeep_shutdown:
 449         yaz_log(YLOG_LOG, "shutdown");
 450         zebra_admin_shutdown(zh);
 451         break;
 452     case Z_ESAdminOriginPartToKeep_start:
 453         yaz_log(YLOG_LOG, "start");
 454         zebra_admin_start(zh);
 455         break;
 456     default:
 457         yaz_log(YLOG_LOG, "unknown admin");
 458     }
 459     return 0;
 460 }
 461
 462 static int es_admin (ZebraHandle zh, Z_Admin *r)
 463 {
 464     switch (r->which)
 465     {
 466     case Z_Admin_esRequest:
 467         es_admin_request (zh, r->u.esRequest);
 468         break;
 469     case Z_Admin_taskPackage:
 470         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 471         break;
 472     default:
 473         break;
 474     }
 475     return 0;
 476 }
 477
 478 int bend_segment (void *handle, bend_segment_rr *rr)
 479 {
 480     ZebraHandle zh = (ZebraHandle) handle;
 481     Z_Segment *segment = rr->segment;
 482
 483     if (segment->num_segmentRecords)
 484         zebra_admin_import_segment (zh, rr->segment);
 485     else
 486         zebra_admin_import_end (zh);
 487     return 0;
 488 }
 489
 490 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 491 {
 492     ZebraHandle zh = (ZebraHandle) handle;
 493
 494     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 495     if (rr->esr->packageName)
 496         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 497     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 498
 499     if (!rr->esr->taskSpecificParameters)
 500     {
 501         yaz_log (YLOG_WARN, "No task specific parameters");
 502     }
 503     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 504     {
 505         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 506
 507         zebra_result (zh, &rr->errcode, &rr->errstring);
 508     }
 509     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 510     {
 511         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 512         yaz_log (YLOG_LOG, "Received DB Update");
 513         if (up->which == Z_IUUpdate_esRequest)
 514         {
 515             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 516             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 517             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 518
 519             yaz_log (YLOG_LOG, "action");
 520             if (toKeep->action)
 521             {
 522                 switch (*toKeep->action)
 523                 {
 524                 case Z_IUOriginPartToKeep_recordInsert:
 525                     yaz_log (YLOG_LOG, "recordInsert");
 526                     break;
 527                 case Z_IUOriginPartToKeep_recordReplace:
 528                     yaz_log (YLOG_LOG, "recordUpdate");
 529                     break;
 530                 case Z_IUOriginPartToKeep_recordDelete:
 531                     yaz_log (YLOG_LOG, "recordDelete");
 532                     break;
 533                 case Z_IUOriginPartToKeep_elementUpdate:
 534                     yaz_log (YLOG_LOG, "elementUpdate");
 535                     break;
 536                 case Z_IUOriginPartToKeep_specialUpdate:
 537                     yaz_log (YLOG_LOG, "specialUpdate");
 538                     break;
 539                 case Z_ESAdminOriginPartToKeep_shutdown:
 540                     yaz_log (YLOG_LOG, "shutDown");
 541                     break;
 542                 case Z_ESAdminOriginPartToKeep_start:
 543                     yaz_log (YLOG_LOG, "start");
 544                     break;
 545                 default:
 546                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 547                 }
 548             }
 549             if (toKeep->databaseName)
 550             {
 551                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 552
 553                 if (zebra_select_database(zh, toKeep->databaseName))
 554                     return 0;
 555             }
 556             else
 557             {
 558                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 559                 rr->errcode =
 560                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 561                 rr->errstring = "database";
 562                 return 0;
 563             }
 564             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 565             {
 566                 zebra_result(zh, &rr->errcode, &rr->errstring);
 567             }
 568             else
 569             {
 570                 int i;
 571                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 572                 {
 573                     Z_External *rec = notToKeep->elements[i]->record;
 574                     struct oident *oident = 0;
 575                     Odr_oct *opaque_recid = 0;
 576                     SYSNO sysno = 0;
 577
 578                     if (notToKeep->elements[i]->u.opaque)
 579                     {
 580                         switch(notToKeep->elements[i]->which)
 581                         {
 582                         case Z_IUSuppliedRecords_elem_opaque:
 583                             opaque_recid = notToKeep->elements[i]->u.opaque;
 584                             break; /* OK, recid already set */
 585                         case Z_IUSuppliedRecords_elem_number:
 586                             sysno = *notToKeep->elements[i]->u.number;
 587                             break;
 588                         }
 589                     }
 590                     if (rec->direct_reference)
 591                     {
 592                         oident = oid_getentbyoid(rec->direct_reference);
 593                         if (oident)
 594                             yaz_log (YLOG_LOG, "record %d type %s", i,
 595                                      oident->desc);
 596                     }
 597                     switch (rec->which)
 598                     {
 599                     case Z_External_sutrs:
 600                         if (rec->u.octet_aligned->len > 170)
 601                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 602                                      rec->u.sutrs->len,
 603                                      rec->u.sutrs->buf);
 604                         else
 605                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 606                                      rec->u.sutrs->len,
 607                                      rec->u.sutrs->buf);
 608                         break;
 609                     case Z_External_octet:
 610                         if (rec->u.octet_aligned->len > 170)
 611                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 612                                      rec->u.octet_aligned->len,
 613                                      rec->u.octet_aligned->buf);
 614                         else
 615                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 616                                      rec->u.octet_aligned->len,
 617                                      rec->u.octet_aligned->buf);
 618                     }
 619                     if (oident && oident->value != VAL_TEXT_XML)
 620                     {
 621                         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 622                         rr->errstring = "only XML update supported";
 623                         break;
 624                     }
 625                     if (rec->which == Z_External_octet)
 626                     {
 627                         int action = 0;
 628
 629                         if (*toKeep->action ==
 630                             Z_IUOriginPartToKeep_recordInsert)
 631                             action = 1;
 632                         if (*toKeep->action ==
 633                             Z_IUOriginPartToKeep_recordReplace)
 634                             action = 2;
 635                         if (*toKeep->action ==
 636                             Z_IUOriginPartToKeep_recordDelete)
 637                             action = 3;
 638                         if (*toKeep->action ==
 639                             Z_IUOriginPartToKeep_specialUpdate)
 640                             action = 4;
 641
 642                         if (!action)
 643                         {
 644                             rr->errcode =
 645                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 646                             rr->errstring = "unsupported ES Update action";
 647                             break;
 648                         }
 649                         else if (opaque_recid)
 650                         {
 651                             int r = zebra_admin_exchange_record (
 652                                 zh,
 653                                 (const char *) rec->u.octet_aligned->buf,
 654                                 rec->u.octet_aligned->len,
 655                                 (const char *) opaque_recid->buf,
 656                                 opaque_recid->len,
 657                                 action);
 658                             if (r)
 659                             {
 660                                 rr->errcode =
 661                                     YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 662                                 rr->errstring = "record exchange failed";
 663                                 break;
 664                             }
 665                         }
 666                         else
 667                         {
 668                             ZEBRA_RES r = ZEBRA_FAIL;
 669                             switch(action) {
 670                             case 1:
 671                                 r = zebra_insert_record(
 672                                     zh,
 673                                     0, /* recordType */
 674                                     &sysno,
 675                                     0, /* match */
 676                                     0, /* fname */
 677                                     (const char *) rec->u.octet_aligned->buf,
 678                                     rec->u.octet_aligned->len,
 679                                     0);
 680                                 if (r == ZEBRA_FAIL)
 681                                 {
 682                                     rr->errcode =
 683                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 684                                     rr->errstring = "insert_record failed";
 685                                 }
 686                                 break;
 687                             case 2:
 688                             case 4:
 689                                 r = zebra_update_record(
 690                                     zh,
 691                                     0, /* recordType */
 692                                     &sysno,
 693                                     0, /* match */
 694                                     0, /* fname */
 695                                     (const char *) rec->u.octet_aligned->buf,
 696                                     rec->u.octet_aligned->len,
 697                                     1);
 698                                 if (r == ZEBRA_FAIL)
 699                                 {
 700                                     rr->errcode =
 701                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 702                                     rr->errstring = "update_record failed";
 703                                 }
 704                                 break;
 705                             case 3:
 706                                 r = zebra_delete_record(
 707                                     zh,
 708                                     0, /* recordType */
 709                                     &sysno,
 710                                     0, /* match */
 711                                     0, /* fname */
 712                                     (const char *) rec->u.octet_aligned->buf,
 713                                     rec->u.octet_aligned->len,
 714                                     0);
 715                                 if (r == ZEBRA_FAIL)
 716                                 {
 717                                     rr->errcode =
 718                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 719                                     rr->errstring = "delete_record failed";
 720                                 }
 721                                 break;
 722                             }
 723                         }
 724                     }
 725                 }
 726                 zebra_end_trans (zh);
 727             }
 728         }
 729     }
 730     else
 731     {
 732         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 733                  rr->esr->taskSpecificParameters->which);
 734         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 735
 736     }
 737     return 0;
 738 }
 739
 740 static void bend_start (struct statserv_options_block *sob)
 741 {
 742     if (sob->handle)
 743         zebra_stop((ZebraService) sob->handle);
 744     sob->handle = zebra_start(sob->configname);
 745     if (!sob->handle)
 746     {
 747         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 748         exit (1);
 749     }
 750 #ifdef WIN32
 751
 752 #else
 753     if (!sob->inetd)
 754     {
 755         char pidfname[4096];
 756         struct flock area;
 757         int fd;
 758
 759         zebra_pidfname(sob->handle, pidfname);
 760
 761         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 762         if (fd == -1)
 763         {
 764             if (errno != EEXIST)
 765             {
 766                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 767                 exit(1);
 768             }
 769             fd = open(pidfname, O_RDWR, 0666);
 770             if (fd == -1)
 771             {
 772                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 773                 exit(1);
 774             }
 775         }
 776         area.l_type = F_WRLCK;
 777         area.l_whence = SEEK_SET;
 778         area.l_len = area.l_start = 0L;
 779         if (fcntl (fd, F_SETLK, &area) == -1)
 780         {
 781             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 782             exit(1);
 783         }
 784         else
 785         {
 786             char pidstr[30];
 787
 788             sprintf (pidstr, "%ld", (long) getpid ());
 789             write (fd, pidstr, strlen(pidstr));
 790         }
 791     }
 792 #endif
 793 }
 794
 795 static void bend_stop(struct statserv_options_block *sob)
 796 {
 797 #ifdef WIN32
 798
 799 #else
 800     if (!sob->inetd && sob->handle)
 801     {
 802         char pidfname[4096];
 803         zebra_pidfname(sob->handle, pidfname);
 804         unlink (pidfname);
 805     }
 806 #endif
 807     if (sob->handle)
 808     {
 809         ZebraService service = sob->handle;
 810         zebra_stop(service);
 811     }
 812 }
 813
 814 int main (int argc, char **argv)
 815 {
 816     struct statserv_options_block *sob;
 817
 818     sob = statserv_getcontrol ();
 819     strcpy (sob->configname, "zebra.cfg");
 820     sob->bend_start = bend_start;
 821     sob->bend_stop = bend_stop;
 822 #ifdef WIN32
 823     strcpy (sob->service_display_name, "Zebra Server");
 824 #endif
 825     statserv_setcontrol (sob);
 826
 827     return statserv_main (argc, argv, bend_init, bend_close);
 828 }