index/zserver.c

   1 /* $Id: zserver.c,v 1.135 2005-06-13 10:29:20 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 #include <yaz/diagbib1.h>
  40
  41 #include <sys/types.h>
  42
  43 #include "zserver.h"
  44
  45 static int bend_sort (void *handle, bend_sort_rr *rr);
  46 static int bend_delete (void *handle, bend_delete_rr *rr);
  47 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  48 static int bend_segment (void *handle, bend_segment_rr *rr);
  49 static int bend_search (void *handle, bend_search_rr *r);
  50 static int bend_fetch (void *handle, bend_fetch_rr *r);
  51 static int bend_scan (void *handle, bend_scan_rr *r);
  52
  53 bend_initresult *bend_init (bend_initrequest *q)
  54 {
  55     bend_initresult *r = (bend_initresult *)
  56         odr_malloc (q->stream, sizeof(*r));
  57     ZebraHandle zh;
  58     struct statserv_options_block *sob;
  59     char *user = NULL;
  60     char *passwd = NULL;
  61
  62     r->errcode = 0;
  63     r->errstring = 0;
  64     q->bend_sort = bend_sort;
  65     q->bend_delete = bend_delete;
  66     q->bend_esrequest = bend_esrequest;
  67     q->bend_segment = bend_segment;
  68     q->bend_search = bend_search;
  69     q->bend_fetch = bend_fetch;
  70     q->bend_scan = bend_scan;
  71
  72     q->implementation_name = "Zebra Information Server";
  73     q->implementation_version = "Zebra " ZEBRAVER;
  74
  75     yaz_log (YLOG_DEBUG, "bend_init");
  76
  77     sob = statserv_getcontrol ();
  78     if (!(zh = zebra_open (sob->handle)))
  79     {
  80         yaz_log (YLOG_WARN, "Failed to read config `%s'", sob->configname);
  81         r->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
  82         return r;
  83     }
  84     r->handle = zh;
  85     if (q->auth)
  86     {
  87         if (q->auth->which == Z_IdAuthentication_open)
  88         {
  89             char *openpass = xstrdup (q->auth->u.open);
  90             char *cp = strchr (openpass, '/');
  91             if (cp)
  92             {
  93                 *cp = '\0';
  94                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  95                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  96             }
  97             xfree (openpass);
  98         }
  99         else if (q->auth->which == Z_IdAuthentication_idPass)
 100         {
 101             Z_IdPass *idPass = q->auth->u.idPass;
 102
 103             user = idPass->userId;
 104             passwd = idPass->password;
 105         }
 106     }
 107     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
 108     {
 109         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
 110         r->errstring = user;
 111         return r;
 112     }
 113     if (q->charneg_request) /* characater set and langauge negotiation? */
 114     {
 115         char **charsets = 0;
 116         int num_charsets;
 117         char **langs = 0;
 118         int num_langs = 0;
 119         int selected = 0;
 120         int i;
 121         NMEM nmem = nmem_create();
 122
 123         yaz_log (YLOG_LOG, "character set and language negotiation");
 124
 125         yaz_get_proposal_charneg (nmem, q->charneg_request,
 126                                   &charsets, &num_charsets,
 127                                   &langs, &num_langs, &selected);
 128
 129         for (i = 0; i < num_charsets; i++)
 130         {
 131             const char *right_name = "";
 132             /*
 133              * FIXME! It is like rudiment :-))
 134              * We have to support this short names of character sets,
 135              * because a lot servers in Russia to use own in during
 136              * character set and language negotiation still.
 137              */
 138
 139             if (!yaz_matchstr(charsets[i], "win")) {
 140                 right_name = "WINDOWS-1251";
 141             } else if (!yaz_matchstr(charsets[i], "koi")) {
 142                 right_name = "KOI8-R";
 143             } else if (!yaz_matchstr(charsets[i], "iso")) {
 144                 right_name = "ISO-8859-5";
 145             } else if (!yaz_matchstr(charsets[i], "dos")) {
 146                 right_name = "CP866";
 147             } else if (!yaz_matchstr(charsets[i], "uni")) {
 148                 right_name = "UTF-8";
 149             } else {
 150                 right_name = charsets[i];
 151             }
 152             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 153             {
 154                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 155                          charsets[i], right_name);
 156                 odr_set_charset (q->stream, right_name, "UTF-8");
 157                 if (selected)
 158                     zebra_record_encoding(zh, right_name);
 159                 zebra_octet_term_encoding(zh, right_name);
 160                 q->charneg_response =
 161                     yaz_set_response_charneg (q->stream, charsets[i],
 162                                               0, selected);
 163                 break;
 164             } else {
 165                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 166                          charsets[i], right_name);
 167             }
 168         }
 169         nmem_destroy(nmem);
 170     }
 171     return r;
 172 }
 173
 174 static void search_terms(ZebraHandle zh, bend_search_rr *r)
 175 {
 176     int no_terms;
 177     int i;
 178     int type = Z_Term_general;
 179     struct Z_External *ext;
 180     Z_SearchInfoReport *sr;
 181
 182     zebra_result_set_term_no(zh, r->setname, &no_terms);
 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         zint count;
 211         int approx;
 212         char outbuf[1024];
 213         size_t len = sizeof(outbuf);
 214
 215         zebra_result_set_term_info(zh, r->setname, i,
 216                                    &count, &approx, outbuf, &len);
 217
 218         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 219         sr->elements[i]->subqueryId = 0;
 220         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 221                                                  sizeof(bool_t));
 222         *sr->elements[i]->fullQuery = 0;
 223         sr->elements[i]->subqueryExpression =
 224             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 225         sr->elements[i]->subqueryExpression->which =
 226             Z_QueryExpression_term;
 227         sr->elements[i]->subqueryExpression->u.term =
 228             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 229         term = odr_malloc (r->stream, sizeof(Z_Term));
 230         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 231         switch (type)
 232         {
 233         case Z_Term_characterString:
 234             yaz_log (YLOG_DEBUG, "term as characterString");
 235             term->which = Z_Term_characterString;
 236             term->u.characterString = odr_strdup (r->stream, outbuf);
 237             break;
 238         case Z_Term_general:
 239             yaz_log (YLOG_DEBUG, "term as general");
 240             term->which = Z_Term_general;
 241             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 242             term->u.general->size = term->u.general->len = len;
 243             term->u.general->buf = odr_malloc (r->stream, len);
 244             memcpy (term->u.general->buf, outbuf, len);
 245             break;
 246         default:
 247             term->which = Z_Term_general;
 248             term->u.null = odr_nullval();
 249         }
 250         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 251         sr->elements[i]->subqueryInterpretation = 0;
 252         sr->elements[i]->subqueryRecommendation = 0;
 253         if (count > 2000000000)
 254             count = 2000000000;
 255         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 256         sr->elements[i]->subqueryWeight = 0;
 257         sr->elements[i]->resultsByDB = 0;
 258     }
 259 }
 260
 261 int bend_search (void *handle, bend_search_rr *r)
 262 {
 263     ZebraHandle zh = (ZebraHandle) handle;
 264     zint zhits = 0;
 265     ZEBRA_RES res;
 266
 267     res = zebra_select_databases (zh, r->num_bases,
 268                                   (const char **) r->basenames);
 269     if (res != ZEBRA_OK)
 270     {
 271         zebra_result (zh, &r->errcode, &r->errstring);
 272         return 0;
 273     }
 274     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
 275     switch (r->query->which)
 276     {
 277     case Z_Query_type_1: case Z_Query_type_101:
 278         res = zebra_search_RPN(zh, r->stream, r->query->u.type_1,
 279                                r->setname, &zhits);
 280         if (res != ZEBRA_OK)
 281             zebra_result(zh, &r->errcode, &r->errstring);
 282         else
 283         {
 284             if (zhits >   2147483646)
 285                 r->hits = 2147483647;
 286             else
 287             r->hits = (int) zhits;
 288             search_terms (zh, r);
 289         }
 290         break;
 291     case Z_Query_type_2:
 292         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 293         r->errstring = "type-2";
 294         break;
 295     default:
 296         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 297     }
 298     return 0;
 299 }
 300
 301
 302 int bend_fetch (void *handle, bend_fetch_rr *r)
 303 {
 304     ZebraHandle zh = (ZebraHandle) handle;
 305     ZebraRetrievalRecord retrievalRecord;
 306     ZEBRA_RES res;
 307
 308     retrievalRecord.position = r->number;
 309
 310     r->last_in_set = 0;
 311     res = zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 312                                   r->request_format, 1, &retrievalRecord);
 313     if (res != ZEBRA_OK)
 314     {
 315         /* non-surrogate diagnostic */
 316         zebra_result (zh, &r->errcode, &r->errstring);
 317     }
 318     else if (retrievalRecord.errCode)
 319     {
 320         /* surrogate diagnostic (diagnostic per record) */
 321         r->surrogate_flag = 1;
 322         r->errcode = retrievalRecord.errCode;
 323         r->errstring = retrievalRecord.errString;
 324         r->basename = retrievalRecord.base;
 325     }
 326     else
 327     {
 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     ZEBRA_RES res;
 342
 343     res = zebra_select_databases(zh, r->num_bases,
 344                                  (const char **) r->basenames);
 345     if (res != ZEBRA_OK)
 346     {
 347         zebra_result (zh, &r->errcode, &r->errstring);
 348         return 0;
 349     }
 350     if (r->step_size != 0 && *r->step_size != 0) {
 351         r->errcode = YAZ_BIB1_ONLY_ZERO_STEP_SIZE_SUPPORTED_FOR_SCAN;
 352         r->errstring = 0;
 353         return 0;
 354     }
 355     r->entries = (struct scan_entry *)
 356         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 357     res = zebra_scan(zh, r->stream, r->term,
 358                      r->attributeset,
 359                      &r->term_position,
 360                      &r->num_entries, &entries, &is_partial);
 361     if (res == ZEBRA_OK)
 362     {
 363         if (is_partial)
 364             r->status = BEND_SCAN_PARTIAL;
 365         else
 366             r->status = BEND_SCAN_SUCCESS;
 367         for (i = 0; i < r->num_entries; i++)
 368         {
 369             r->entries[i].term = entries[i].term;
 370             r->entries[i].occurrences = entries[i].occurrences;
 371         }
 372     }
 373     else
 374     {
 375         r->status = BEND_SCAN_PARTIAL;
 376         zebra_result(zh, &r->errcode, &r->errstring);
 377     }
 378     return 0;
 379 }
 380
 381 void bend_close (void *handle)
 382 {
 383     zebra_close ((ZebraHandle) handle);
 384     xmalloc_trav("bend_close");
 385     nmem_print_list();
 386 }
 387
 388 int bend_sort (void *handle, bend_sort_rr *rr)
 389 {
 390     ZebraHandle zh = (ZebraHandle) handle;
 391
 392     zebra_sort (zh, rr->stream,
 393                 rr->num_input_setnames, (const char **) rr->input_setnames,
 394                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 395     zebra_result (zh, &rr->errcode, &rr->errstring);
 396     return 0;
 397 }
 398
 399 int bend_delete (void *handle, bend_delete_rr *rr)
 400 {
 401     ZebraHandle zh = (ZebraHandle) handle;
 402
 403     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 404                                               rr->num_setnames, rr->setnames,
 405                                               rr->statuses);
 406     return 0;
 407 }
 408
 409 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 410 {
 411     if (r->toKeep->databaseName)
 412     {
 413         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 414     }
 415     switch (r->toKeep->which)
 416     {
 417     case Z_ESAdminOriginPartToKeep_reIndex:
 418         yaz_log(YLOG_LOG, "adm-reindex");
 419         break;
 420     case Z_ESAdminOriginPartToKeep_truncate:
 421         yaz_log(YLOG_LOG, "adm-truncate");
 422         break;
 423     case Z_ESAdminOriginPartToKeep_drop:
 424         yaz_log(YLOG_LOG, "adm-drop");
 425         zebra_drop_database (zh, r->toKeep->databaseName);
 426         break;
 427     case Z_ESAdminOriginPartToKeep_create:
 428         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 429         zebra_create_database (zh, r->toKeep->databaseName);
 430         break;
 431     case Z_ESAdminOriginPartToKeep_import:
 432         yaz_log(YLOG_LOG, "adm-import");
 433         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 434                         r->toKeep->u.import->recordType);
 435         break;
 436     case Z_ESAdminOriginPartToKeep_refresh:
 437         yaz_log(YLOG_LOG, "adm-refresh");
 438         break;
 439     case Z_ESAdminOriginPartToKeep_commit:
 440         yaz_log(YLOG_LOG, "adm-commit");
 441         if (r->toKeep->databaseName)
 442             zebra_select_database(zh, r->toKeep->databaseName);
 443         zebra_commit(zh);
 444         break;
 445     case Z_ESAdminOriginPartToKeep_shutdown:
 446         yaz_log(YLOG_LOG, "shutdown");
 447         zebra_admin_shutdown(zh);
 448         break;
 449     case Z_ESAdminOriginPartToKeep_start:
 450         yaz_log(YLOG_LOG, "start");
 451         zebra_admin_start(zh);
 452         break;
 453     default:
 454         yaz_log(YLOG_LOG, "unknown admin");
 455     }
 456     return 0;
 457 }
 458
 459 static int es_admin (ZebraHandle zh, Z_Admin *r)
 460 {
 461     switch (r->which)
 462     {
 463     case Z_Admin_esRequest:
 464         es_admin_request (zh, r->u.esRequest);
 465         break;
 466     case Z_Admin_taskPackage:
 467         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 468         break;
 469     default:
 470         break;
 471     }
 472     return 0;
 473 }
 474
 475 int bend_segment (void *handle, bend_segment_rr *rr)
 476 {
 477     ZebraHandle zh = (ZebraHandle) handle;
 478     Z_Segment *segment = rr->segment;
 479
 480     if (segment->num_segmentRecords)
 481         zebra_admin_import_segment (zh, rr->segment);
 482     else
 483         zebra_admin_import_end (zh);
 484     return 0;
 485 }
 486
 487 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 488 {
 489     ZebraHandle zh = (ZebraHandle) handle;
 490
 491     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 492     if (rr->esr->packageName)
 493         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 494     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 495
 496     if (!rr->esr->taskSpecificParameters)
 497     {
 498         yaz_log (YLOG_WARN, "No task specific parameters");
 499     }
 500     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 501     {
 502         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 503
 504         zebra_result (zh, &rr->errcode, &rr->errstring);
 505     }
 506     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 507     {
 508         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 509         yaz_log (YLOG_LOG, "Received DB Update");
 510         if (up->which == Z_IUUpdate_esRequest)
 511         {
 512             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 513             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 514             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 515
 516             yaz_log (YLOG_LOG, "action");
 517             if (toKeep->action)
 518             {
 519                 switch (*toKeep->action)
 520                 {
 521                 case Z_IUOriginPartToKeep_recordInsert:
 522                     yaz_log (YLOG_LOG, "recordInsert");
 523                     break;
 524                 case Z_IUOriginPartToKeep_recordReplace:
 525                     yaz_log (YLOG_LOG, "recordUpdate");
 526                     break;
 527                 case Z_IUOriginPartToKeep_recordDelete:
 528                     yaz_log (YLOG_LOG, "recordDelete");
 529                     break;
 530                 case Z_IUOriginPartToKeep_elementUpdate:
 531                     yaz_log (YLOG_LOG, "elementUpdate");
 532                     break;
 533                 case Z_IUOriginPartToKeep_specialUpdate:
 534                     yaz_log (YLOG_LOG, "specialUpdate");
 535                     break;
 536                 case Z_ESAdminOriginPartToKeep_shutdown:
 537                     yaz_log (YLOG_LOG, "shutDown");
 538                     break;
 539                 case Z_ESAdminOriginPartToKeep_start:
 540                     yaz_log (YLOG_LOG, "start");
 541                     break;
 542                 default:
 543                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 544                 }
 545             }
 546             if (toKeep->databaseName)
 547             {
 548                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 549
 550                 if (zebra_select_database(zh, toKeep->databaseName))
 551                     return 0;
 552             }
 553             else
 554             {
 555                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 556                 rr->errcode =
 557                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 558                 rr->errstring = "database";
 559                 return 0;
 560             }
 561             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 562             {
 563                 zebra_result(zh, &rr->errcode, &rr->errstring);
 564             }
 565             else
 566             {
 567                 int i;
 568                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 569                 {
 570                     Z_External *rec = notToKeep->elements[i]->record;
 571                     struct oident *oident = 0;
 572                     Odr_oct *opaque_recid = 0;
 573                     SYSNO sysno = 0;
 574
 575                     if (notToKeep->elements[i]->u.opaque)
 576                     {
 577                         switch(notToKeep->elements[i]->which)
 578                         {
 579                         case Z_IUSuppliedRecords_elem_opaque:
 580                             opaque_recid = notToKeep->elements[i]->u.opaque;
 581                             break; /* OK, recid already set */
 582                         case Z_IUSuppliedRecords_elem_number:
 583                             sysno = *notToKeep->elements[i]->u.number;
 584                             break;
 585                         }
 586                     }
 587                     if (rec->direct_reference)
 588                     {
 589                         oident = oid_getentbyoid(rec->direct_reference);
 590                         if (oident)
 591                             yaz_log (YLOG_LOG, "record %d type %s", i,
 592                                      oident->desc);
 593                     }
 594                     switch (rec->which)
 595                     {
 596                     case Z_External_sutrs:
 597                         if (rec->u.octet_aligned->len > 170)
 598                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 599                                      rec->u.sutrs->len,
 600                                      rec->u.sutrs->buf);
 601                         else
 602                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 603                                      rec->u.sutrs->len,
 604                                      rec->u.sutrs->buf);
 605                         break;
 606                     case Z_External_octet:
 607                         if (rec->u.octet_aligned->len > 170)
 608                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 609                                      rec->u.octet_aligned->len,
 610                                      rec->u.octet_aligned->buf);
 611                         else
 612                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 613                                      rec->u.octet_aligned->len,
 614                                      rec->u.octet_aligned->buf);
 615                     }
 616                     if (oident && oident->value != VAL_TEXT_XML)
 617                     {
 618                         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 619                         rr->errstring = "only XML update supported";
 620                         break;
 621                     }
 622                     if (rec->which == Z_External_octet)
 623                     {
 624                         int action = 0;
 625
 626                         if (*toKeep->action ==
 627                             Z_IUOriginPartToKeep_recordInsert)
 628                             action = 1;
 629                         if (*toKeep->action ==
 630                             Z_IUOriginPartToKeep_recordReplace)
 631                             action = 2;
 632                         if (*toKeep->action ==
 633                             Z_IUOriginPartToKeep_recordDelete)
 634                             action = 3;
 635                         if (*toKeep->action ==
 636                             Z_IUOriginPartToKeep_specialUpdate)
 637                             action = 4;
 638
 639                         if (!action)
 640                         {
 641                             rr->errcode =
 642                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 643                             rr->errstring = "unsupported ES Update action";
 644                             break;
 645                         }
 646                         else if (opaque_recid)
 647                         {
 648                             int r = zebra_admin_exchange_record (
 649                                 zh,
 650                                 rec->u.octet_aligned->buf,
 651                                 rec->u.octet_aligned->len,
 652                                 opaque_recid->buf, opaque_recid->len,
 653                                 action);
 654                             if (r)
 655                             {
 656                                 rr->errcode =
 657                                     YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 658                                 rr->errstring = "record exchange failed";
 659                                 break;
 660                             }
 661                         }
 662                         else
 663                         {
 664                             ZEBRA_RES r = ZEBRA_FAIL;
 665                             switch(action) {
 666                             case 1:
 667                                 r = zebra_insert_record(
 668                                     zh,
 669                                     0, /* recordType */
 670                                     &sysno,
 671                                     0, /* match */
 672                                     0, /* fname */
 673                                     rec->u.octet_aligned->buf,
 674                                     rec->u.octet_aligned->len,
 675                                     0);
 676                                 if (r == ZEBRA_FAIL)
 677                                 {
 678                                     rr->errcode =
 679                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 680                                     rr->errstring = "insert_record failed";
 681                                 }
 682                                 break;
 683                             case 2:
 684                             case 4:
 685                                 r = zebra_update_record(
 686                                     zh,
 687                                     0, /* recordType */
 688                                     &sysno,
 689                                     0, /* match */
 690                                     0, /* fname */
 691                                     rec->u.octet_aligned->buf,
 692                                     rec->u.octet_aligned->len,
 693                                     1);
 694                                 if (r == ZEBRA_FAIL)
 695                                 {
 696                                     rr->errcode =
 697                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 698                                     rr->errstring = "update_record failed";
 699                                 }
 700                                 break;
 701                             case 3:
 702                                 r = zebra_delete_record(
 703                                     zh,
 704                                     0, /* recordType */
 705                                     &sysno,
 706                                     0, /* match */
 707                                     0, /* fname */
 708                                     rec->u.octet_aligned->buf,
 709                                     rec->u.octet_aligned->len,
 710                                     0);
 711                                 if (r == ZEBRA_FAIL)
 712                                 {
 713                                     rr->errcode =
 714                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 715                                     rr->errstring = "delete_record failed";
 716                                 }
 717                                 break;
 718                             }
 719                         }
 720                     }
 721                 }
 722                 zebra_end_trans (zh);
 723             }
 724         }
 725     }
 726     else
 727     {
 728         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 729                  rr->esr->taskSpecificParameters->which);
 730         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 731
 732     }
 733     return 0;
 734 }
 735
 736 static void bend_start (struct statserv_options_block *sob)
 737 {
 738     if (sob->handle)
 739         zebra_stop((ZebraService) sob->handle);
 740     sob->handle = zebra_start(sob->configname);
 741     if (!sob->handle)
 742     {
 743         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 744         exit (1);
 745     }
 746 #ifdef WIN32
 747
 748 #else
 749     if (!sob->inetd)
 750     {
 751         char pidfname[4096];
 752         struct flock area;
 753         int fd;
 754
 755         zebra_pidfname(sob->handle, pidfname);
 756
 757         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 758         if (fd == -1)
 759         {
 760             if (errno != EEXIST)
 761             {
 762                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 763                 exit(1);
 764             }
 765             fd = open(pidfname, O_RDWR, 0666);
 766             if (fd == -1)
 767             {
 768                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 769                 exit(1);
 770             }
 771         }
 772         area.l_type = F_WRLCK;
 773         area.l_whence = SEEK_SET;
 774         area.l_len = area.l_start = 0L;
 775         if (fcntl (fd, F_SETLK, &area) == -1)
 776         {
 777             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 778             exit(1);
 779         }
 780         else
 781         {
 782             char pidstr[30];
 783
 784             sprintf (pidstr, "%ld", (long) getpid ());
 785             write (fd, pidstr, strlen(pidstr));
 786         }
 787     }
 788 #endif
 789 }
 790
 791 static void bend_stop(struct statserv_options_block *sob)
 792 {
 793 #ifdef WIN32
 794
 795 #else
 796     if (!sob->inetd && sob->handle)
 797     {
 798         char pidfname[4096];
 799         zebra_pidfname(sob->handle, pidfname);
 800         unlink (pidfname);
 801     }
 802 #endif
 803     if (sob->handle)
 804     {
 805         ZebraService service = sob->handle;
 806         zebra_stop(service);
 807     }
 808 }
 809
 810 int main (int argc, char **argv)
 811 {
 812     struct statserv_options_block *sob;
 813
 814     sob = statserv_getcontrol ();
 815     strcpy (sob->configname, "zebra.cfg");
 816     sob->bend_start = bend_start;
 817     sob->bend_stop = bend_stop;
 818 #ifdef WIN32
 819     strcpy (sob->service_display_name, "Zebra Server");
 820 #endif
 821     statserv_setcontrol (sob);
 822
 823     return statserv_main (argc, argv, bend_init, bend_close);
 824 }