index/zserver.c

   1 /* $Id: zserver.c,v 1.117.2.2 2005-01-16 23:13:29 adam Exp $
   2    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
   3    Index Data Aps
   4
   5 This file is part of the Zebra server.
   6
   7 Zebra is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Zebra; see the file LICENSE.zebra.  If not, write to the
  19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21 */
  22
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <assert.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 (LOG_DEBUG, "bend_init");
  75
  76     sob = statserv_getcontrol ();
  77     if (!(zh = zebra_open (sob->handle)))
  78     {
  79         yaz_log (LOG_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 (LOG_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 (LOG_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                 q->charneg_response =
 159                     yaz_set_response_charneg (q->stream, charsets[i],
 160                                               0, selected);
 161                 break;
 162             } else {
 163                 yaz_log (LOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 164                          charsets[i], right_name);
 165             }
 166         }
 167         nmem_destroy(nmem);
 168     }
 169     return r;
 170 }
 171
 172 static void search_terms (ZebraHandle zh, bend_search_rr *r)
 173 {
 174     int count;
 175     int no_terms;
 176     int i;
 177     int type;
 178     struct Z_External *ext;
 179     Z_SearchInfoReport *sr;
 180
 181     /* get no of terms for result set */
 182     no_terms = zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0);
 183     if (!no_terms)
 184         return;
 185
 186     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 187
 188     r->search_info->num_elements = 1;
 189     r->search_info->list =
 190         odr_malloc (r->stream, sizeof(*r->search_info->list));
 191     r->search_info->list[0] =
 192         odr_malloc (r->stream, sizeof(**r->search_info->list));
 193     r->search_info->list[0]->category = 0;
 194     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 195     ext = odr_malloc (r->stream, sizeof(*ext));
 196     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 197     ext->direct_reference =
 198         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 199     ext->indirect_reference = 0;
 200     ext->descriptor = 0;
 201     ext->which = Z_External_searchResult1;
 202     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 203     ext->u.searchResult1 = sr;
 204     sr->num = no_terms;
 205     sr->elements = odr_malloc (r->stream, sr->num *
 206                                sizeof(*sr->elements));
 207     for (i = 0; i<no_terms; i++)
 208     {
 209         Z_Term *term;
 210         char outbuf[1024];
 211         size_t len = sizeof(outbuf);
 212         zebra_resultSetTerms (zh, r->setname, i,
 213                               &count, &type, outbuf, &len);
 214
 215         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 216         sr->elements[i]->subqueryId = 0;
 217         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 218                                                  sizeof(bool_t));
 219         *sr->elements[i]->fullQuery = 0;
 220         sr->elements[i]->subqueryExpression =
 221             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 222         sr->elements[i]->subqueryExpression->which =
 223             Z_QueryExpression_term;
 224         sr->elements[i]->subqueryExpression->u.term =
 225             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 226         term = odr_malloc (r->stream, sizeof(Z_Term));
 227         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 228         switch (type)
 229         {
 230         case Z_Term_characterString:
 231             yaz_log (LOG_DEBUG, "term as characterString");
 232             term->which = Z_Term_characterString;
 233             term->u.characterString = odr_strdup (r->stream, outbuf);
 234             break;
 235         case Z_Term_general:
 236             yaz_log (LOG_DEBUG, "term as general");
 237             term->which = Z_Term_general;
 238             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 239             term->u.general->size = term->u.general->len = len;
 240             term->u.general->buf = odr_malloc (r->stream, len);
 241             memcpy (term->u.general->buf, outbuf, len);
 242             break;
 243         default:
 244             term->which = Z_Term_general;
 245             term->u.null = odr_nullval();
 246         }
 247         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 248         sr->elements[i]->subqueryInterpretation = 0;
 249         sr->elements[i]->subqueryRecommendation = 0;
 250         sr->elements[i]->subqueryCount = odr_intdup (r->stream, count);
 251         sr->elements[i]->subqueryWeight = 0;
 252         sr->elements[i]->resultsByDB = 0;
 253     }
 254 }
 255
 256 int bend_search (void *handle, bend_search_rr *r)
 257 {
 258     ZebraHandle zh = (ZebraHandle) handle;
 259
 260     r->hits = 0;
 261     r->errcode = 0;
 262     r->errstring = NULL;
 263
 264     if (zebra_select_databases (zh, r->num_bases,
 265                                 (const char **) r->basenames))
 266     {
 267         zebra_result (zh, &r->errcode, &r->errstring);
 268         return 0;
 269     }
 270     yaz_log (LOG_LOG, "ResultSet '%s'", r->setname);
 271     switch (r->query->which)
 272     {
 273     case Z_Query_type_1: case Z_Query_type_101:
 274         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 275                           r->setname, &r->hits);
 276         zebra_result (zh, &r->errcode, &r->errstring);
 277         if (!r->errcode)
 278             search_terms (zh, r);
 279         break;
 280     case Z_Query_type_2:
 281         r->errcode = 107;
 282         r->errstring = "type-2";
 283         break;
 284     default:
 285         r->errcode = 107;
 286     }
 287     return 0;
 288 }
 289
 290
 291 int bend_fetch (void *handle, bend_fetch_rr *r)
 292 {
 293     ZebraHandle zh = (ZebraHandle) handle;
 294     ZebraRetrievalRecord retrievalRecord;
 295
 296     retrievalRecord.position = r->number;
 297
 298     r->last_in_set = 0;
 299     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 300                             r->request_format, 1, &retrievalRecord);
 301     zebra_result (zh, &r->errcode, &r->errstring);
 302     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 303     if (r->errcode == 0 && retrievalRecord.errCode)
 304     {
 305         r->surrogate_flag = 1;
 306         r->errcode = retrievalRecord.errCode;
 307         r->errstring = retrievalRecord.errString;
 308         r->basename = retrievalRecord.base;
 309     }
 310     else if (r->errcode == 0)        /* Database Record */
 311     {
 312         r->errcode = 0;
 313         r->basename = retrievalRecord.base;
 314         r->record = retrievalRecord.buf;
 315         r->len = retrievalRecord.len;
 316         r->output_format = retrievalRecord.format;
 317     }
 318     return 0;
 319 }
 320
 321 static int bend_scan (void *handle, bend_scan_rr *r)
 322 {
 323     ZebraScanEntry *entries;
 324     ZebraHandle zh = (ZebraHandle) handle;
 325     int is_partial, i;
 326
 327     if (zebra_select_databases (zh, r->num_bases,
 328                                 (const char **) r->basenames))
 329     {
 330         zebra_result (zh, &r->errcode, &r->errstring);
 331         return 0;
 332     }
 333     if (r->step_size != 0 && *r->step_size != 0) {
 334         r->errcode = 205; /* "Only zero step size supported for Scan" */
 335         r->errstring = 0;
 336         return 0;
 337     }
 338     r->entries = (struct scan_entry *)
 339         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 340     zebra_scan (zh, r->stream, r->term,
 341                 r->attributeset,
 342                 &r->term_position,
 343                 &r->num_entries, &entries, &is_partial);
 344     if (is_partial)
 345         r->status = BEND_SCAN_PARTIAL;
 346     else
 347         r->status = BEND_SCAN_SUCCESS;
 348     for (i = 0; i < r->num_entries; i++)
 349     {
 350         r->entries[i].term = entries[i].term;
 351         r->entries[i].occurrences = entries[i].occurrences;
 352     }
 353     zebra_result (zh, &r->errcode, &r->errstring);
 354     return 0;
 355 }
 356
 357 void bend_close (void *handle)
 358 {
 359     zebra_close ((ZebraHandle) handle);
 360     xmalloc_trav("bend_close");
 361     nmem_print_list();
 362 }
 363
 364 int bend_sort (void *handle, bend_sort_rr *rr)
 365 {
 366     ZebraHandle zh = (ZebraHandle) handle;
 367
 368     zebra_sort (zh, rr->stream,
 369                 rr->num_input_setnames, (const char **) rr->input_setnames,
 370                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 371     zebra_result (zh, &rr->errcode, &rr->errstring);
 372     return 0;
 373 }
 374
 375 int bend_delete (void *handle, bend_delete_rr *rr)
 376 {
 377     ZebraHandle zh = (ZebraHandle) handle;
 378
 379     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 380                                               rr->num_setnames, rr->setnames,
 381                                               rr->statuses);
 382     return 0;
 383 }
 384
 385 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 386 {
 387     if (r->toKeep->databaseName)
 388     {
 389         yaz_log(LOG_LOG, "adm request database %s", r->toKeep->databaseName);
 390     }
 391     switch (r->toKeep->which)
 392     {
 393     case Z_ESAdminOriginPartToKeep_reIndex:
 394         yaz_log(LOG_LOG, "adm-reindex");
 395         break;
 396     case Z_ESAdminOriginPartToKeep_truncate:
 397         yaz_log(LOG_LOG, "adm-truncate");
 398         break;
 399     case Z_ESAdminOriginPartToKeep_drop:
 400         yaz_log(LOG_LOG, "adm-drop");
 401         zebra_drop_database (zh, r->toKeep->databaseName);
 402         break;
 403     case Z_ESAdminOriginPartToKeep_create:
 404         yaz_log(LOG_LOG, "adm-create %s", r->toKeep->databaseName);
 405         zebra_create_database (zh, r->toKeep->databaseName);
 406         break;
 407     case Z_ESAdminOriginPartToKeep_import:
 408         yaz_log(LOG_LOG, "adm-import");
 409         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 410                         r->toKeep->u.import->recordType);
 411         break;
 412     case Z_ESAdminOriginPartToKeep_refresh:
 413         yaz_log(LOG_LOG, "adm-refresh");
 414         break;
 415     case Z_ESAdminOriginPartToKeep_commit:
 416         yaz_log(LOG_LOG, "adm-commit");
 417         if (r->toKeep->databaseName)
 418             zebra_select_database(zh, r->toKeep->databaseName);
 419         zebra_commit(zh);
 420         break;
 421     case Z_ESAdminOriginPartToKeep_shutdown:
 422         yaz_log(LOG_LOG, "shutdown");
 423         zebra_admin_shutdown(zh);
 424         break;
 425     case Z_ESAdminOriginPartToKeep_start:
 426         yaz_log(LOG_LOG, "start");
 427         zebra_admin_start(zh);
 428         break;
 429     default:
 430         yaz_log(LOG_LOG, "unknown admin");
 431     }
 432     return 0;
 433 }
 434
 435 static int es_admin (ZebraHandle zh, Z_Admin *r)
 436 {
 437     switch (r->which)
 438     {
 439     case Z_Admin_esRequest:
 440         es_admin_request (zh, r->u.esRequest);
 441         break;
 442     case Z_Admin_taskPackage:
 443         yaz_log (LOG_LOG, "adm taskpackage (unhandled)");
 444         break;
 445     default:
 446         break;
 447     }
 448
 449     return 0;
 450 }
 451
 452 int bend_segment (void *handle, bend_segment_rr *rr)
 453 {
 454     ZebraHandle zh = (ZebraHandle) handle;
 455     Z_Segment *segment = rr->segment;
 456
 457     if (segment->num_segmentRecords)
 458         zebra_admin_import_segment (zh, rr->segment);
 459     else
 460         zebra_admin_import_end (zh);
 461     return 0;
 462 }
 463
 464 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 465 {
 466     ZebraHandle zh = (ZebraHandle) handle;
 467
 468     yaz_log(LOG_LOG, "function: %d", *rr->esr->function);
 469     if (rr->esr->packageName)
 470         yaz_log(LOG_LOG, "packagename: %s", rr->esr->packageName);
 471     yaz_log(LOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 472
 473     if (!rr->esr->taskSpecificParameters)
 474     {
 475         yaz_log (LOG_WARN, "No task specific parameters");
 476     }
 477     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 478     {
 479         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 480
 481         zebra_result (zh, &rr->errcode, &rr->errstring);
 482     }
 483     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 484     {
 485         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 486         yaz_log (LOG_LOG, "Received DB Update");
 487         if (up->which == Z_IUUpdate_esRequest)
 488         {
 489             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 490             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 491             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 492
 493             yaz_log (LOG_LOG, "action");
 494             if (toKeep->action)
 495             {
 496                 switch (*toKeep->action)
 497                 {
 498                 case Z_IUOriginPartToKeep_recordInsert:
 499                     yaz_log (LOG_LOG, "recordInsert");
 500                     break;
 501                 case Z_IUOriginPartToKeep_recordReplace:
 502                     yaz_log (LOG_LOG, "recordUpdate");
 503                     break;
 504                 case Z_IUOriginPartToKeep_recordDelete:
 505                     yaz_log (LOG_LOG, "recordDelete");
 506                     break;
 507                 case Z_IUOriginPartToKeep_elementUpdate:
 508                     yaz_log (LOG_LOG, "elementUpdate");
 509                     break;
 510                 case Z_IUOriginPartToKeep_specialUpdate:
 511                     yaz_log (LOG_LOG, "specialUpdate");
 512                     break;
 513                 case Z_ESAdminOriginPartToKeep_shutdown:
 514                     yaz_log (LOG_LOG, "shutDown");
 515                     break;
 516                 case Z_ESAdminOriginPartToKeep_start:
 517                     yaz_log (LOG_LOG, "start");
 518                     break;
 519                 default:
 520                     yaz_log (LOG_LOG, " unknown (%d)", *toKeep->action);
 521                 }
 522             }
 523             if (toKeep->databaseName)
 524             {
 525                 yaz_log (LOG_LOG, "database: %s", toKeep->databaseName);
 526
 527                 if (zebra_select_database(zh, toKeep->databaseName))
 528                     return 0;
 529             }
 530             else
 531             {
 532                 yaz_log (LOG_WARN, "no database supplied for ES Update");
 533                 rr->errcode = 1008;
 534                 rr->errstring = "database";
 535                 return 0;
 536             }
 537             if (notToKeep)
 538             {
 539                 int i;
 540                 zebra_begin_trans (zh, 1);
 541                 for (i = 0; i < notToKeep->num; i++)
 542                 {
 543                     Z_External *rec = notToKeep->elements[i]->record;
 544                     struct oident *oident = 0;
 545                     Odr_oct *opaque_recid = 0;
 546                     int sysno = 0;
 547
 548                     if (notToKeep->elements[i]->u.opaque)
 549                     {
 550                         switch(notToKeep->elements[i]->which)
 551                         {
 552                         case Z_IUSuppliedRecords_elem_opaque:
 553                             opaque_recid = notToKeep->elements[i]->u.opaque;
 554                             break; /* OK, recid already set */
 555                         case Z_IUSuppliedRecords_elem_number:
 556                             sysno = *notToKeep->elements[i]->u.number;
 557                             break;
 558                         }
 559                     }
 560                     if (rec->direct_reference)
 561                     {
 562                         oident = oid_getentbyoid(rec->direct_reference);
 563                         if (oident)
 564                             yaz_log (LOG_LOG, "record %d type %s", i,
 565                                      oident->desc);
 566                     }
 567                     switch (rec->which)
 568                     {
 569                     case Z_External_sutrs:
 570                         if (rec->u.octet_aligned->len > 170)
 571                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 572                                      rec->u.sutrs->len,
 573                                      rec->u.sutrs->buf);
 574                         else
 575                             yaz_log (LOG_LOG, "%d bytes:\n%s",
 576                                      rec->u.sutrs->len,
 577                                      rec->u.sutrs->buf);
 578                         break;
 579                     case Z_External_octet:
 580                         if (rec->u.octet_aligned->len > 170)
 581                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 582                                      rec->u.octet_aligned->len,
 583                                      rec->u.octet_aligned->buf);
 584                         else
 585                             yaz_log (LOG_LOG, "%d bytes\n%s",
 586                                      rec->u.octet_aligned->len,
 587                                      rec->u.octet_aligned->buf);
 588                     }
 589                     if (oident && oident->value != VAL_TEXT_XML)
 590                     {
 591                         rr->errcode = 224;
 592                         rr->errstring = "only XML update supported";
 593                         break;
 594                     }
 595                     if (rec->which == Z_External_octet)
 596                     {
 597                         int action = 0;
 598
 599                         if (*toKeep->action ==
 600                             Z_IUOriginPartToKeep_recordInsert)
 601                             action = 1;
 602                         if (*toKeep->action ==
 603                             Z_IUOriginPartToKeep_recordReplace)
 604                             action = 2;
 605                         if (*toKeep->action ==
 606                             Z_IUOriginPartToKeep_recordDelete)
 607                             action = 3;
 608                         if (*toKeep->action ==
 609                             Z_IUOriginPartToKeep_specialUpdate)
 610                             action = 4;
 611
 612                         if (!action)
 613                         {
 614                             rr->errcode = 224;
 615                             rr->errstring = "unsupported ES Update action";
 616                             break;
 617                         }
 618                         else if (opaque_recid)
 619                         {
 620                             int r = zebra_admin_exchange_record (
 621                                 zh,
 622                                 rec->u.octet_aligned->buf,
 623                                 rec->u.octet_aligned->len,
 624                                 opaque_recid->buf, opaque_recid->len,
 625                                 action);
 626                             if (r)
 627                             {
 628                                 rr->errcode = 224;
 629                                 rr->errstring = "record exchange failed";
 630                                 break;
 631                             }
 632                         }
 633                         else
 634                         {
 635                             int r = -1;
 636                             switch(action) {
 637                             case 1:
 638                                 r = zebra_insert_record(
 639                                     zh,
 640                                     0, /* recordType */
 641                                     &sysno,
 642                                     0, /* match */
 643                                     0, /* fname */
 644                                     rec->u.octet_aligned->buf,
 645                                     rec->u.octet_aligned->len,
 646                                     0);
 647                                 if (r)
 648                                 {
 649                                     yaz_log(LOG_WARN, "zebra_insert_record failed r=%d", r);
 650                                     rr->errcode = 224;
 651                                     rr->errstring = "insert_record failed";
 652                                 }
 653                                 break;
 654                             case 2:
 655                             case 4:
 656                                 r = zebra_update_record(
 657                                     zh,
 658                                     0, /* recordType */
 659                                     &sysno,
 660                                     0, /* match */
 661                                     0, /* fname */
 662                                     rec->u.octet_aligned->buf,
 663                                     rec->u.octet_aligned->len,
 664                                     1);
 665                                 if (r)
 666                                 {
 667                                     yaz_log(LOG_WARN, "zebra_update_record failed r=%d", r);
 668                                     rr->errcode = 224;
 669                                     rr->errstring =
 670                                         "update_record failed";
 671                                 }
 672                                 break;
 673                             case 3:
 674                                 r = zebra_delete_record(
 675                                     zh,
 676                                     0, /* recordType */
 677                                     &sysno,
 678                                     0, /* match */
 679                                     0, /* fname */
 680                                     rec->u.octet_aligned->buf,
 681                                     rec->u.octet_aligned->len,
 682                                     0);
 683                                 if (r)
 684                                 {
 685                                     yaz_log(LOG_WARN, "zebra_delete_record failed r=%d", r);
 686                                     rr->errcode = 224;
 687                                     rr->errstring = "delete_record failed";
 688                                 }
 689                                 break;
 690                             }
 691                         }
 692                     }
 693                 }
 694                 zebra_end_trans (zh);
 695             }
 696         }
 697     }
 698     else
 699     {
 700         yaz_log (LOG_WARN, "Unknown Extended Service(%d)",
 701                  rr->esr->taskSpecificParameters->which);
 702         rr->errcode = 221;
 703
 704     }
 705     return 0;
 706 }
 707
 708 static void bend_start (struct statserv_options_block *sob)
 709 {
 710     if (sob->handle)
 711         zebra_stop((ZebraService) sob->handle);
 712     sob->handle = zebra_start(sob->configname);
 713     if (!sob->handle)
 714     {
 715         yaz_log (LOG_FATAL, "Failed to read config `%s'", sob->configname);
 716         exit(1);
 717     }
 718 #ifdef WIN32
 719
 720 #else
 721     if (!sob->inetd)
 722     {
 723         char pidfname[4096];
 724         struct flock area;
 725         int fd;
 726
 727         zebra_pidfname(sob->handle, pidfname);
 728
 729         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 730         if (fd == -1)
 731         {
 732             if (errno != EEXIST)
 733             {
 734                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 735                 exit(1);
 736             }
 737             fd = open(pidfname, O_RDWR, 0666);
 738             if (fd == -1)
 739             {
 740                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 741                 exit(1);
 742             }
 743         }
 744         area.l_type = F_WRLCK;
 745         area.l_whence = SEEK_SET;
 746         area.l_len = area.l_start = 0L;
 747         if (fcntl (fd, F_SETLK, &area) == -1)
 748         {
 749             yaz_log(LOG_ERRNO|LOG_FATAL, "Zebra server already running");
 750             exit(1);
 751         }
 752         else
 753         {
 754             char pidstr[30];
 755
 756             sprintf (pidstr, "%ld", (long) getpid ());
 757             write (fd, pidstr, strlen(pidstr));
 758         }
 759     }
 760 #endif
 761 }
 762
 763 static void bend_stop(struct statserv_options_block *sob)
 764 {
 765 #ifdef WIN32
 766
 767 #else
 768     if (!sob->inetd && sob->handle)
 769     {
 770         char pidfname[4096];
 771         zebra_pidfname(sob->handle, pidfname);
 772         unlink (pidfname);
 773     }
 774 #endif
 775     if (sob->handle)
 776     {
 777         ZebraService service = sob->handle;
 778         zebra_stop(service);
 779     }
 780 }
 781
 782 int main (int argc, char **argv)
 783 {
 784     struct statserv_options_block *sob;
 785
 786     sob = statserv_getcontrol ();
 787     strcpy (sob->configname, "zebra.cfg");
 788     sob->bend_start = bend_start;
 789     sob->bend_stop = bend_stop;
 790 #ifdef WIN32
 791     strcpy (sob->service_display_name, "Zebra Server");
 792 #endif
 793     statserv_setcontrol (sob);
 794
 795     return statserv_main (argc, argv, bend_init, bend_close);
 796 }