index/zserver.c

   1 /* $Id: zserver.c,v 1.119 2004-08-06 13:36:23 adam Exp $
   2    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
   3    Index Data Aps
   4
   5 This file is part of the Zebra server.
   6
   7 Zebra is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Zebra; see the file LICENSE.zebra.  If not, write to the
  19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21 */
  22
  23 #include <stdio.h>
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #ifdef WIN32
  27 #include <io.h>
  28 #include <process.h>
  29 #include <sys/locking.h>
  30 #else
  31 #include <unistd.h>
  32 #endif
  33
  34 #include <errno.h>
  35 #include <yaz/log.h>
  36 #include <yaz/ill.h>
  37 #include <yaz/yaz-util.h>
  38
  39 #include <sys/types.h>
  40
  41 #include "zserver.h"
  42
  43 static int bend_sort (void *handle, bend_sort_rr *rr);
  44 static int bend_delete (void *handle, bend_delete_rr *rr);
  45 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  46 static int bend_segment (void *handle, bend_segment_rr *rr);
  47 static int bend_search (void *handle, bend_search_rr *r);
  48 static int bend_fetch (void *handle, bend_fetch_rr *r);
  49 static int bend_scan (void *handle, bend_scan_rr *r);
  50
  51 bend_initresult *bend_init (bend_initrequest *q)
  52 {
  53     bend_initresult *r = (bend_initresult *)
  54         odr_malloc (q->stream, sizeof(*r));
  55     ZebraHandle zh;
  56     struct statserv_options_block *sob;
  57     char *user = NULL;
  58     char *passwd = NULL;
  59
  60     r->errcode = 0;
  61     r->errstring = 0;
  62     q->bend_sort = bend_sort;
  63     q->bend_delete = bend_delete;
  64     q->bend_esrequest = bend_esrequest;
  65     q->bend_segment = bend_segment;
  66     q->bend_search = bend_search;
  67     q->bend_fetch = bend_fetch;
  68     q->bend_scan = bend_scan;
  69
  70     q->implementation_name = "Zebra Information Server";
  71     q->implementation_version = "Zebra " ZEBRAVER;
  72
  73     yaz_log (LOG_DEBUG, "bend_init");
  74
  75     sob = statserv_getcontrol ();
  76     if (!(zh = zebra_open (sob->handle)))
  77     {
  78         yaz_log (LOG_WARN, "Failed to read config `%s'", sob->configname);
  79         r->errcode = 1;
  80         return r;
  81     }
  82     r->handle = zh;
  83     if (q->auth)
  84     {
  85         if (q->auth->which == Z_IdAuthentication_open)
  86         {
  87             char *openpass = xstrdup (q->auth->u.open);
  88             char *cp = strchr (openpass, '/');
  89             if (cp)
  90             {
  91                 *cp = '\0';
  92                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  93                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  94             }
  95             xfree (openpass);
  96         }
  97         else if (q->auth->which == Z_IdAuthentication_idPass)
  98         {
  99             Z_IdPass *idPass = q->auth->u.idPass;
 100
 101             user = idPass->userId;
 102             passwd = idPass->password;
 103         }
 104     }
 105     if (zebra_auth (zh, user, passwd))
 106     {
 107         r->errcode = 222;
 108         r->errstring = user;
 109         return r;
 110     }
 111     if (q->charneg_request) /* characater set and langauge negotiation? */
 112     {
 113         char **charsets = 0;
 114         int num_charsets;
 115         char **langs = 0;
 116         int num_langs = 0;
 117         int selected = 0;
 118         int i;
 119         NMEM nmem = nmem_create();
 120
 121         yaz_log (LOG_LOG, "character set and language negotiation");
 122
 123         yaz_get_proposal_charneg (nmem, q->charneg_request,
 124                                   &charsets, &num_charsets,
 125                                   &langs, &num_langs, &selected);
 126
 127         for (i = 0; i < num_charsets; i++)
 128         {
 129             const char *right_name = "";
 130             /*
 131              * FIXME! It is like rudiment :-))
 132              * We have to support this short names of character sets,
 133              * because a lot servers in Russia to use own in during
 134              * character set and language negotiation still.
 135              */
 136
 137             if (!yaz_matchstr(charsets[i], "win")) {
 138                 right_name = "WINDOWS-1251";
 139             } else if (!yaz_matchstr(charsets[i], "koi")) {
 140                 right_name = "KOI8-R";
 141             } else if (!yaz_matchstr(charsets[i], "iso")) {
 142                 right_name = "ISO-8859-5";
 143             } else if (!yaz_matchstr(charsets[i], "dos")) {
 144                 right_name = "CP866";
 145             } else if (!yaz_matchstr(charsets[i], "uni")) {
 146                 right_name = "UTF-8";
 147             } else {
 148                 right_name = charsets[i];
 149             }
 150             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 151             {
 152                 yaz_log (LOG_LOG, "charset %d %s (proper name %s): OK", i,
 153                          charsets[i], right_name);
 154                 odr_set_charset (q->stream, right_name, "UTF-8");
 155                 if (selected)
 156                     zebra_record_encoding (zh, right_name);
 157                 q->charneg_response =
 158                     yaz_set_response_charneg (q->stream, charsets[i],
 159                                               0, selected);
 160                 break;
 161             } else {
 162                 yaz_log (LOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 163                          charsets[i], right_name);
 164             }
 165         }
 166         nmem_destroy(nmem);
 167     }
 168     return r;
 169 }
 170
 171 static void search_terms (ZebraHandle zh, bend_search_rr *r)
 172 {
 173     zint count;
 174     int no_terms;
 175     int i;
 176     int type;
 177     struct Z_External *ext;
 178     Z_SearchInfoReport *sr;
 179
 180     /* get no of terms for result set */
 181     no_terms = zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0);
 182     if (!no_terms)
 183         return;
 184
 185     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 186
 187     r->search_info->num_elements = 1;
 188     r->search_info->list =
 189         odr_malloc (r->stream, sizeof(*r->search_info->list));
 190     r->search_info->list[0] =
 191         odr_malloc (r->stream, sizeof(**r->search_info->list));
 192     r->search_info->list[0]->category = 0;
 193     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 194     ext = odr_malloc (r->stream, sizeof(*ext));
 195     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 196     ext->direct_reference =
 197         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 198     ext->indirect_reference = 0;
 199     ext->descriptor = 0;
 200     ext->which = Z_External_searchResult1;
 201     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 202     ext->u.searchResult1 = sr;
 203     sr->num = no_terms;
 204     sr->elements = odr_malloc (r->stream, sr->num *
 205                                sizeof(*sr->elements));
 206     for (i = 0; i<no_terms; i++)
 207     {
 208         Z_Term *term;
 209         char outbuf[1024];
 210         size_t len = sizeof(outbuf);
 211         zebra_resultSetTerms (zh, r->setname, i,
 212                               &count, &type, outbuf, &len);
 213
 214         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 215         sr->elements[i]->subqueryId = 0;
 216         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 217                                                  sizeof(bool_t));
 218         *sr->elements[i]->fullQuery = 0;
 219         sr->elements[i]->subqueryExpression =
 220             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 221         sr->elements[i]->subqueryExpression->which =
 222             Z_QueryExpression_term;
 223         sr->elements[i]->subqueryExpression->u.term =
 224             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 225         term = odr_malloc (r->stream, sizeof(Z_Term));
 226         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 227         switch (type)
 228         {
 229         case Z_Term_characterString:
 230             yaz_log (LOG_DEBUG, "term as characterString");
 231             term->which = Z_Term_characterString;
 232             term->u.characterString = odr_strdup (r->stream, outbuf);
 233             break;
 234         case Z_Term_general:
 235             yaz_log (LOG_DEBUG, "term as general");
 236             term->which = Z_Term_general;
 237             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 238             term->u.general->size = term->u.general->len = len;
 239             term->u.general->buf = odr_malloc (r->stream, len);
 240             memcpy (term->u.general->buf, outbuf, len);
 241             break;
 242         default:
 243             term->which = Z_Term_general;
 244             term->u.null = odr_nullval();
 245         }
 246         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 247         sr->elements[i]->subqueryInterpretation = 0;
 248         sr->elements[i]->subqueryRecommendation = 0;
 249         if (count > 2000000000)
 250             count = 2000000000;
 251         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 252         sr->elements[i]->subqueryWeight = 0;
 253         sr->elements[i]->resultsByDB = 0;
 254     }
 255 }
 256
 257 int bend_search (void *handle, bend_search_rr *r)
 258 {
 259     ZebraHandle zh = (ZebraHandle) handle;
 260
 261     r->hits = 0;
 262     r->errcode = 0;
 263     r->errstring = NULL;
 264
 265     if (zebra_select_databases (zh, r->num_bases,
 266                                 (const char **) r->basenames))
 267     {
 268         zebra_result (zh, &r->errcode, &r->errstring);
 269         return 0;
 270     }
 271     yaz_log (LOG_LOG, "ResultSet '%s'", r->setname);
 272     switch (r->query->which)
 273     {
 274     case Z_Query_type_1: case Z_Query_type_101:
 275         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 276                           r->setname, &r->hits);
 277         zebra_result (zh, &r->errcode, &r->errstring);
 278         if (!r->errcode)
 279             search_terms (zh, r);
 280         break;
 281     case Z_Query_type_2:
 282         r->errcode = 107;
 283         r->errstring = "type-2";
 284         break;
 285     default:
 286         r->errcode = 107;
 287     }
 288     return 0;
 289 }
 290
 291
 292 int bend_fetch (void *handle, bend_fetch_rr *r)
 293 {
 294     ZebraHandle zh = (ZebraHandle) handle;
 295     ZebraRetrievalRecord retrievalRecord;
 296
 297     retrievalRecord.position = r->number;
 298
 299     r->last_in_set = 0;
 300     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 301                             r->request_format, 1, &retrievalRecord);
 302     zebra_result (zh, &r->errcode, &r->errstring);
 303     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 304     if (r->errcode == 0 && retrievalRecord.errCode)
 305     {
 306         r->surrogate_flag = 1;
 307         r->errcode = retrievalRecord.errCode;
 308         r->errstring = retrievalRecord.errString;
 309         r->basename = retrievalRecord.base;
 310     }
 311     else if (r->errcode == 0)        /* Database Record */
 312     {
 313         r->errcode = 0;
 314         r->basename = retrievalRecord.base;
 315         r->record = retrievalRecord.buf;
 316         r->len = retrievalRecord.len;
 317         r->output_format = retrievalRecord.format;
 318     }
 319     return 0;
 320 }
 321
 322 static int bend_scan (void *handle, bend_scan_rr *r)
 323 {
 324     ZebraScanEntry *entries;
 325     ZebraHandle zh = (ZebraHandle) handle;
 326     int is_partial, i;
 327
 328     if (zebra_select_databases (zh, r->num_bases,
 329                                 (const char **) r->basenames))
 330     {
 331         zebra_result (zh, &r->errcode, &r->errstring);
 332         return 0;
 333     }
 334     if (r->step_size != 0 && *r->step_size != 0) {
 335         r->errcode = 205; /* "Only zero step size supported for Scan" */
 336         r->errstring = 0;
 337         return 0;
 338     }
 339     r->entries = (struct scan_entry *)
 340         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 341     zebra_scan (zh, r->stream, r->term,
 342                 r->attributeset,
 343                 &r->term_position,
 344                 &r->num_entries, &entries, &is_partial);
 345     if (is_partial)
 346         r->status = BEND_SCAN_PARTIAL;
 347     else
 348         r->status = BEND_SCAN_SUCCESS;
 349     for (i = 0; i < r->num_entries; i++)
 350     {
 351         r->entries[i].term = entries[i].term;
 352         r->entries[i].occurrences = entries[i].occurrences;
 353     }
 354     zebra_result (zh, &r->errcode, &r->errstring);
 355     return 0;
 356 }
 357
 358 void bend_close (void *handle)
 359 {
 360     zebra_close ((ZebraHandle) handle);
 361     xmalloc_trav("bend_close");
 362     nmem_print_list();
 363 }
 364
 365 int bend_sort (void *handle, bend_sort_rr *rr)
 366 {
 367     ZebraHandle zh = (ZebraHandle) handle;
 368
 369     zebra_sort (zh, rr->stream,
 370                 rr->num_input_setnames, (const char **) rr->input_setnames,
 371                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 372     zebra_result (zh, &rr->errcode, &rr->errstring);
 373     return 0;
 374 }
 375
 376 int bend_delete (void *handle, bend_delete_rr *rr)
 377 {
 378     ZebraHandle zh = (ZebraHandle) handle;
 379
 380     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 381                                               rr->num_setnames, rr->setnames,
 382                                               rr->statuses);
 383     return 0;
 384 }
 385
 386 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 387 {
 388     if (r->toKeep->databaseName)
 389     {
 390         yaz_log(LOG_LOG, "adm request database %s", r->toKeep->databaseName);
 391     }
 392     switch (r->toKeep->which)
 393     {
 394     case Z_ESAdminOriginPartToKeep_reIndex:
 395         yaz_log(LOG_LOG, "adm-reindex");
 396         break;
 397     case Z_ESAdminOriginPartToKeep_truncate:
 398         yaz_log(LOG_LOG, "adm-truncate");
 399         break;
 400     case Z_ESAdminOriginPartToKeep_drop:
 401         yaz_log(LOG_LOG, "adm-drop");
 402         zebra_drop_database (zh, r->toKeep->databaseName);
 403         break;
 404     case Z_ESAdminOriginPartToKeep_create:
 405         yaz_log(LOG_LOG, "adm-create %s", r->toKeep->databaseName);
 406         zebra_create_database (zh, r->toKeep->databaseName);
 407         break;
 408     case Z_ESAdminOriginPartToKeep_import:
 409         yaz_log(LOG_LOG, "adm-import");
 410         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 411                         r->toKeep->u.import->recordType);
 412         break;
 413     case Z_ESAdminOriginPartToKeep_refresh:
 414         yaz_log(LOG_LOG, "adm-refresh");
 415         break;
 416     case Z_ESAdminOriginPartToKeep_commit:
 417         yaz_log(LOG_LOG, "adm-commit");
 418         if (r->toKeep->databaseName)
 419             zebra_select_database(zh, r->toKeep->databaseName);
 420         zebra_commit(zh);
 421         break;
 422     case Z_ESAdminOriginPartToKeep_shutdown:
 423         yaz_log(LOG_LOG, "shutdown");
 424         zebra_admin_shutdown(zh);
 425         break;
 426     case Z_ESAdminOriginPartToKeep_start:
 427         yaz_log(LOG_LOG, "start");
 428         zebra_admin_start(zh);
 429         break;
 430     default:
 431         yaz_log(LOG_LOG, "unknown admin");
 432     }
 433     return 0;
 434 }
 435
 436 static int es_admin (ZebraHandle zh, Z_Admin *r)
 437 {
 438     switch (r->which)
 439     {
 440     case Z_Admin_esRequest:
 441         es_admin_request (zh, r->u.esRequest);
 442         break;
 443     case Z_Admin_taskPackage:
 444         yaz_log (LOG_LOG, "adm taskpackage (unhandled)");
 445         break;
 446     default:
 447         break;
 448     }
 449
 450     return 0;
 451 }
 452
 453 int bend_segment (void *handle, bend_segment_rr *rr)
 454 {
 455     ZebraHandle zh = (ZebraHandle) handle;
 456     Z_Segment *segment = rr->segment;
 457
 458     if (segment->num_segmentRecords)
 459         zebra_admin_import_segment (zh, rr->segment);
 460     else
 461         zebra_admin_import_end (zh);
 462     return 0;
 463 }
 464
 465 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 466 {
 467     ZebraHandle zh = (ZebraHandle) handle;
 468
 469     yaz_log(LOG_LOG, "function: %d", *rr->esr->function);
 470     if (rr->esr->packageName)
 471         yaz_log(LOG_LOG, "packagename: %s", rr->esr->packageName);
 472     yaz_log(LOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 473
 474     if (!rr->esr->taskSpecificParameters)
 475     {
 476         yaz_log (LOG_WARN, "No task specific parameters");
 477     }
 478     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 479     {
 480         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 481
 482         zebra_result (zh, &rr->errcode, &rr->errstring);
 483     }
 484     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 485     {
 486         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 487         yaz_log (LOG_LOG, "Received DB Update");
 488         if (up->which == Z_IUUpdate_esRequest)
 489         {
 490             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 491             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 492             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 493
 494             yaz_log (LOG_LOG, "action");
 495             if (toKeep->action)
 496             {
 497                 switch (*toKeep->action)
 498                 {
 499                 case Z_IUOriginPartToKeep_recordInsert:
 500                     yaz_log (LOG_LOG, "recordInsert");
 501                     break;
 502                 case Z_IUOriginPartToKeep_recordReplace:
 503                     yaz_log (LOG_LOG, "recordUpdate");
 504                     break;
 505                 case Z_IUOriginPartToKeep_recordDelete:
 506                     yaz_log (LOG_LOG, "recordDelete");
 507                     break;
 508                 case Z_IUOriginPartToKeep_elementUpdate:
 509                     yaz_log (LOG_LOG, "elementUpdate");
 510                     break;
 511                 case Z_IUOriginPartToKeep_specialUpdate:
 512                     yaz_log (LOG_LOG, "specialUpdate");
 513                     break;
 514                 case Z_ESAdminOriginPartToKeep_shutdown:
 515                     yaz_log (LOG_LOG, "shutDown");
 516                     break;
 517                 case Z_ESAdminOriginPartToKeep_start:
 518                     yaz_log (LOG_LOG, "start");
 519                     break;
 520                 default:
 521                     yaz_log (LOG_LOG, " unknown (%d)", *toKeep->action);
 522                 }
 523             }
 524             if (toKeep->databaseName)
 525             {
 526                 yaz_log (LOG_LOG, "database: %s", toKeep->databaseName);
 527
 528                 if (zebra_select_database(zh, toKeep->databaseName))
 529                     return 0;
 530             }
 531             else
 532             {
 533                 yaz_log (LOG_WARN, "no database supplied for ES Update");
 534                 rr->errcode = 1008;
 535                 rr->errstring = "database";
 536                 return 0;
 537             }
 538             if (notToKeep)
 539             {
 540                 int i;
 541                 zebra_begin_trans (zh, 1);
 542                 for (i = 0; i < notToKeep->num; i++)
 543                 {
 544                     Z_External *rec = notToKeep->elements[i]->record;
 545                     struct oident *oident = 0;
 546                     Odr_oct *opaque_recid = 0;
 547                     SYSNO sysno = 0;
 548
 549                     if (notToKeep->elements[i]->u.opaque)
 550                     {
 551                         switch(notToKeep->elements[i]->which)
 552                         {
 553                         case Z_IUSuppliedRecords_elem_opaque:
 554                             opaque_recid = notToKeep->elements[i]->u.opaque;
 555                             break; /* OK, recid already set */
 556                         case Z_IUSuppliedRecords_elem_number:
 557                             sysno = *notToKeep->elements[i]->u.number;
 558                             break;
 559                         }
 560                     }
 561                     if (rec->direct_reference)
 562                     {
 563                         oident = oid_getentbyoid(rec->direct_reference);
 564                         if (oident)
 565                             yaz_log (LOG_LOG, "record %d type %s", i,
 566                                      oident->desc);
 567                     }
 568                     switch (rec->which)
 569                     {
 570                     case Z_External_sutrs:
 571                         if (rec->u.octet_aligned->len > 170)
 572                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 573                                      rec->u.sutrs->len,
 574                                      rec->u.sutrs->buf);
 575                         else
 576                             yaz_log (LOG_LOG, "%d bytes:\n%s",
 577                                      rec->u.sutrs->len,
 578                                      rec->u.sutrs->buf);
 579                         break;
 580                     case Z_External_octet:
 581                         if (rec->u.octet_aligned->len > 170)
 582                             yaz_log (LOG_LOG, "%d bytes:\n%.168s ...",
 583                                      rec->u.octet_aligned->len,
 584                                      rec->u.octet_aligned->buf);
 585                         else
 586                             yaz_log (LOG_LOG, "%d bytes\n%s",
 587                                      rec->u.octet_aligned->len,
 588                                      rec->u.octet_aligned->buf);
 589                     }
 590                     if (oident && oident->value != VAL_TEXT_XML)
 591                     {
 592                         rr->errcode = 224;
 593                         rr->errstring = "only XML update supported";
 594                         break;
 595                     }
 596                     if (rec->which == Z_External_octet)
 597                     {
 598                         int action = 0;
 599
 600                         if (*toKeep->action ==
 601                             Z_IUOriginPartToKeep_recordInsert)
 602                             action = 1;
 603                         if (*toKeep->action ==
 604                             Z_IUOriginPartToKeep_recordReplace)
 605                             action = 2;
 606                         if (*toKeep->action ==
 607                             Z_IUOriginPartToKeep_recordDelete)
 608                             action = 3;
 609                         if (*toKeep->action ==
 610                             Z_IUOriginPartToKeep_specialUpdate)
 611                             action = 4;
 612
 613                         if (!action)
 614                         {
 615                             rr->errcode = 224;
 616                             rr->errstring = "unsupported ES Update action";
 617                             break;
 618                         }
 619                         else if (opaque_recid)
 620                         {
 621                             int r = zebra_admin_exchange_record (
 622                                 zh,
 623                                 rec->u.octet_aligned->buf,
 624                                 rec->u.octet_aligned->len,
 625                                 opaque_recid->buf, opaque_recid->len,
 626                                 action);
 627                             if (r)
 628                             {
 629                                 rr->errcode = 224;
 630                                 rr->errstring = "record exchange failed";
 631                                 break;
 632                             }
 633                         }
 634                         else
 635                         {
 636                             int r = -1;
 637                             switch(action) {
 638                             case 1:
 639                                 r = zebra_insert_record(
 640                                     zh,
 641                                     0, /* recordType */
 642                                     &sysno,
 643                                     0, /* match */
 644                                     0, /* fname */
 645                                     rec->u.octet_aligned->buf,
 646                                     rec->u.octet_aligned->len,
 647                                     0);
 648                                 if (r)
 649                                 {
 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                                     rr->errcode = 224;
 668                                     rr->errstring = "update_record failed";
 669                                 }
 670                                 break;
 671                             case 3:
 672                                 r = zebra_delete_record(
 673                                     zh,
 674                                     0, /* recordType */
 675                                     &sysno,
 676                                     0, /* match */
 677                                     0, /* fname */
 678                                     rec->u.octet_aligned->buf,
 679                                     rec->u.octet_aligned->len,
 680                                     0);
 681                                 if (r)
 682                                 {
 683                                     rr->errcode = 224;
 684                                     rr->errstring = "delete_record failed";
 685                                 }
 686                                 break;
 687                             }
 688                         }
 689                     }
 690                 }
 691                 zebra_end_trans (zh);
 692             }
 693         }
 694     }
 695     else
 696     {
 697         yaz_log (LOG_WARN, "Unknown Extended Service(%d)",
 698                  rr->esr->taskSpecificParameters->which);
 699         rr->errcode = 221;
 700
 701     }
 702     return 0;
 703 }
 704
 705 static void bend_start (struct statserv_options_block *sob)
 706 {
 707     if (sob->handle)
 708         zebra_stop((ZebraService) sob->handle);
 709     sob->handle = zebra_start(sob->configname);
 710     if (!sob->handle)
 711     {
 712         yaz_log (LOG_FATAL, "Failed to read config `%s'", sob->configname);
 713         exit (1);
 714     }
 715 #ifdef WIN32
 716
 717 #else
 718     if (!sob->inetd)
 719     {
 720         char pidfname[4096];
 721         struct flock area;
 722         int fd;
 723
 724         zebra_pidfname(sob->handle, pidfname);
 725
 726         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 727         if (fd == -1)
 728         {
 729             if (errno != EEXIST)
 730             {
 731                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 732                 exit(1);
 733             }
 734             fd = open(pidfname, O_RDWR, 0666);
 735             if (fd == -1)
 736             {
 737                 yaz_log(LOG_FATAL|LOG_ERRNO, "lock file %s", pidfname);
 738                 exit(1);
 739             }
 740         }
 741         area.l_type = F_WRLCK;
 742         area.l_whence = SEEK_SET;
 743         area.l_len = area.l_start = 0L;
 744         if (fcntl (fd, F_SETLK, &area) == -1)
 745         {
 746             yaz_log(LOG_ERRNO|LOG_FATAL, "Zebra server already running");
 747             exit(1);
 748         }
 749         else
 750         {
 751             char pidstr[30];
 752
 753             sprintf (pidstr, "%ld", (long) getpid ());
 754             write (fd, pidstr, strlen(pidstr));
 755         }
 756     }
 757 #endif
 758 }
 759
 760 static void bend_stop(struct statserv_options_block *sob)
 761 {
 762 #ifdef WIN32
 763
 764 #else
 765     if (!sob->inetd && sob->handle)
 766     {
 767         char pidfname[4096];
 768         zebra_pidfname(sob->handle, pidfname);
 769         unlink (pidfname);
 770     }
 771 #endif
 772     if (sob->handle)
 773     {
 774         ZebraService service = sob->handle;
 775         zebra_stop(service);
 776     }
 777 }
 778
 779 int main (int argc, char **argv)
 780 {
 781     struct statserv_options_block *sob;
 782
 783     sob = statserv_getcontrol ();
 784     strcpy (sob->configname, "zebra.cfg");
 785     sob->bend_start = bend_start;
 786     sob->bend_stop = bend_stop;
 787 #ifdef WIN32
 788     strcpy (sob->service_display_name, "Zebra Server");
 789 #endif
 790     statserv_setcontrol (sob);
 791
 792     return statserv_main (argc, argv, bend_init, bend_close);
 793 }