index/zserver.c

   1 /* $Id: zserver.c,v 1.128 2005-01-16 23:14:57 adam Exp $
   2    Copyright (C) 1995-2005
   3    Index Data ApS
   4
   5 This file is part of the Zebra server.
   6
   7 Zebra is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Zebra; see the file LICENSE.zebra.  If not, write to the
  19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21 */
  22
  23 #include <assert.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <fcntl.h>
  27 #ifdef WIN32
  28 #include <io.h>
  29 #include <process.h>
  30 #include <sys/locking.h>
  31 #else
  32 #include <unistd.h>
  33 #endif
  34
  35 #include <errno.h>
  36 #include <yaz/log.h>
  37 #include <yaz/ill.h>
  38 #include <yaz/yaz-util.h>
  39
  40 #include <sys/types.h>
  41
  42 #include "zserver.h"
  43
  44 static int bend_sort (void *handle, bend_sort_rr *rr);
  45 static int bend_delete (void *handle, bend_delete_rr *rr);
  46 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  47 static int bend_segment (void *handle, bend_segment_rr *rr);
  48 static int bend_search (void *handle, bend_search_rr *r);
  49 static int bend_fetch (void *handle, bend_fetch_rr *r);
  50 static int bend_scan (void *handle, bend_scan_rr *r);
  51
  52 bend_initresult *bend_init (bend_initrequest *q)
  53 {
  54     bend_initresult *r = (bend_initresult *)
  55         odr_malloc (q->stream, sizeof(*r));
  56     ZebraHandle zh;
  57     struct statserv_options_block *sob;
  58     char *user = NULL;
  59     char *passwd = NULL;
  60
  61     r->errcode = 0;
  62     r->errstring = 0;
  63     q->bend_sort = bend_sort;
  64     q->bend_delete = bend_delete;
  65     q->bend_esrequest = bend_esrequest;
  66     q->bend_segment = bend_segment;
  67     q->bend_search = bend_search;
  68     q->bend_fetch = bend_fetch;
  69     q->bend_scan = bend_scan;
  70
  71     q->implementation_name = "Zebra Information Server";
  72     q->implementation_version = "Zebra " ZEBRAVER;
  73
  74     yaz_log (YLOG_DEBUG, "bend_init");
  75
  76     sob = statserv_getcontrol ();
  77     if (!(zh = zebra_open (sob->handle)))
  78     {
  79         yaz_log (YLOG_WARN, "Failed to read config `%s'", sob->configname);
  80         r->errcode = 1;
  81         return r;
  82     }
  83     r->handle = zh;
  84     if (q->auth)
  85     {
  86         if (q->auth->which == Z_IdAuthentication_open)
  87         {
  88             char *openpass = xstrdup (q->auth->u.open);
  89             char *cp = strchr (openpass, '/');
  90             if (cp)
  91             {
  92                 *cp = '\0';
  93                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  94                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  95             }
  96             xfree (openpass);
  97         }
  98         else if (q->auth->which == Z_IdAuthentication_idPass)
  99         {
 100             Z_IdPass *idPass = q->auth->u.idPass;
 101
 102             user = idPass->userId;
 103             passwd = idPass->password;
 104         }
 105     }
 106     if (zebra_auth (zh, user, passwd))
 107     {
 108         r->errcode = 222;
 109         r->errstring = user;
 110         return r;
 111     }
 112     if (q->charneg_request) /* characater set and langauge negotiation? */
 113     {
 114         char **charsets = 0;
 115         int num_charsets;
 116         char **langs = 0;
 117         int num_langs = 0;
 118         int selected = 0;
 119         int i;
 120         NMEM nmem = nmem_create();
 121
 122         yaz_log (YLOG_LOG, "character set and language negotiation");
 123
 124         yaz_get_proposal_charneg (nmem, q->charneg_request,
 125                                   &charsets, &num_charsets,
 126                                   &langs, &num_langs, &selected);
 127
 128         for (i = 0; i < num_charsets; i++)
 129         {
 130             const char *right_name = "";
 131             /*
 132              * FIXME! It is like rudiment :-))
 133              * We have to support this short names of character sets,
 134              * because a lot servers in Russia to use own in during
 135              * character set and language negotiation still.
 136              */
 137
 138             if (!yaz_matchstr(charsets[i], "win")) {
 139                 right_name = "WINDOWS-1251";
 140             } else if (!yaz_matchstr(charsets[i], "koi")) {
 141                 right_name = "KOI8-R";
 142             } else if (!yaz_matchstr(charsets[i], "iso")) {
 143                 right_name = "ISO-8859-5";
 144             } else if (!yaz_matchstr(charsets[i], "dos")) {
 145                 right_name = "CP866";
 146             } else if (!yaz_matchstr(charsets[i], "uni")) {
 147                 right_name = "UTF-8";
 148             } else {
 149                 right_name = charsets[i];
 150             }
 151             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 152             {
 153                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 154                          charsets[i], right_name);
 155                 odr_set_charset (q->stream, right_name, "UTF-8");
 156                 if (selected)
 157                     zebra_record_encoding(zh, right_name);
 158                 zebra_octet_term_encoding(zh, right_name);
 159                 q->charneg_response =
 160                     yaz_set_response_charneg (q->stream, charsets[i],
 161                                               0, selected);
 162                 break;
 163             } else {
 164                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 165                          charsets[i], right_name);
 166             }
 167         }
 168         nmem_destroy(nmem);
 169     }
 170     return r;
 171 }
 172
 173 static void search_terms (ZebraHandle zh, bend_search_rr *r)
 174 {
 175     zint count = 0;
 176     int no_terms;
 177     int i;
 178     int type = Z_Term_general;
 179     struct Z_External *ext;
 180     Z_SearchInfoReport *sr;
 181
 182     /* get no of terms for result set */
 183     no_terms = 0; /* zebra_resultSetTerms (zh, r->setname, 0, 0, 0, 0, 0); */
 184       /* FIXME - Rsets don't know number of terms no more ??? */
 185     if (!no_terms)
 186         return;
 187
 188     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 189
 190     r->search_info->num_elements = 1;
 191     r->search_info->list =
 192         odr_malloc (r->stream, sizeof(*r->search_info->list));
 193     r->search_info->list[0] =
 194         odr_malloc (r->stream, sizeof(**r->search_info->list));
 195     r->search_info->list[0]->category = 0;
 196     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 197     ext = odr_malloc (r->stream, sizeof(*ext));
 198     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 199     ext->direct_reference =
 200         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 201     ext->indirect_reference = 0;
 202     ext->descriptor = 0;
 203     ext->which = Z_External_searchResult1;
 204     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 205     ext->u.searchResult1 = sr;
 206     sr->num = no_terms;
 207     sr->elements = odr_malloc (r->stream, sr->num *
 208                                sizeof(*sr->elements));
 209     for (i = 0; i<no_terms; i++)
 210     {
 211         Z_Term *term;
 212         char outbuf[1024];
 213         size_t len = sizeof(outbuf);
 214         /* FIXME - Can we just skip this ??? */
 215         /*
 216         zebra_resultSetTerms (zh, r->setname, i,
 217                               &count, &type, outbuf, &len);
 218         */
 219         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 220         sr->elements[i]->subqueryId = 0;
 221         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 222                                                  sizeof(bool_t));
 223         *sr->elements[i]->fullQuery = 0;
 224         sr->elements[i]->subqueryExpression =
 225             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 226         sr->elements[i]->subqueryExpression->which =
 227             Z_QueryExpression_term;
 228         sr->elements[i]->subqueryExpression->u.term =
 229             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 230         term = odr_malloc (r->stream, sizeof(Z_Term));
 231         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 232         switch (type)
 233         {
 234         case Z_Term_characterString:
 235             yaz_log (YLOG_DEBUG, "term as characterString");
 236             term->which = Z_Term_characterString;
 237             term->u.characterString = odr_strdup (r->stream, outbuf);
 238             break;
 239         case Z_Term_general:
 240             yaz_log (YLOG_DEBUG, "term as general");
 241             term->which = Z_Term_general;
 242             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 243             term->u.general->size = term->u.general->len = len;
 244             term->u.general->buf = odr_malloc (r->stream, len);
 245             memcpy (term->u.general->buf, outbuf, len);
 246             break;
 247         default:
 248             term->which = Z_Term_general;
 249             term->u.null = odr_nullval();
 250         }
 251         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 252         sr->elements[i]->subqueryInterpretation = 0;
 253         sr->elements[i]->subqueryRecommendation = 0;
 254         if (count > 2000000000)
 255             count = 2000000000;
 256         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 257         sr->elements[i]->subqueryWeight = 0;
 258         sr->elements[i]->resultsByDB = 0;
 259     }
 260 }
 261
 262 int bend_search (void *handle, bend_search_rr *r)
 263 {
 264     ZebraHandle zh = (ZebraHandle) handle;
 265
 266     r->hits = 0;
 267     r->errcode = 0;
 268     r->errstring = NULL;
 269
 270     if (zebra_select_databases (zh, r->num_bases,
 271                                 (const char **) r->basenames))
 272     {
 273         zebra_result (zh, &r->errcode, &r->errstring);
 274         return 0;
 275     }
 276     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
 277     switch (r->query->which)
 278     {
 279     case Z_Query_type_1: case Z_Query_type_101:
 280         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
 281                           r->setname, &r->hits);
 282         zebra_result (zh, &r->errcode, &r->errstring);
 283         if (!r->errcode)
 284             search_terms (zh, r);
 285         break;
 286     case Z_Query_type_2:
 287         r->errcode = 107;
 288         r->errstring = "type-2";
 289         break;
 290     default:
 291         r->errcode = 107;
 292     }
 293     return 0;
 294 }
 295
 296
 297 int bend_fetch (void *handle, bend_fetch_rr *r)
 298 {
 299     ZebraHandle zh = (ZebraHandle) handle;
 300     ZebraRetrievalRecord retrievalRecord;
 301
 302     retrievalRecord.position = r->number;
 303
 304     r->last_in_set = 0;
 305     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 306                             r->request_format, 1, &retrievalRecord);
 307     zebra_result (zh, &r->errcode, &r->errstring);
 308     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
 309     if (r->errcode == 0 && retrievalRecord.errCode)
 310     {
 311         r->surrogate_flag = 1;
 312         r->errcode = retrievalRecord.errCode;
 313         r->errstring = retrievalRecord.errString;
 314         r->basename = retrievalRecord.base;
 315     }
 316     else if (r->errcode == 0)        /* Database Record */
 317     {
 318         r->errcode = 0;
 319         r->basename = retrievalRecord.base;
 320         r->record = retrievalRecord.buf;
 321         r->len = retrievalRecord.len;
 322         r->output_format = retrievalRecord.format;
 323     }
 324     return 0;
 325 }
 326
 327 static int bend_scan (void *handle, bend_scan_rr *r)
 328 {
 329     ZebraScanEntry *entries;
 330     ZebraHandle zh = (ZebraHandle) handle;
 331     int is_partial, i;
 332
 333     if (zebra_select_databases (zh, r->num_bases,
 334                                 (const char **) r->basenames))
 335     {
 336         zebra_result (zh, &r->errcode, &r->errstring);
 337         return 0;
 338     }
 339     if (r->step_size != 0 && *r->step_size != 0) {
 340         r->errcode = 205; /* "Only zero step size supported for Scan" */
 341         r->errstring = 0;
 342         return 0;
 343     }
 344     r->entries = (struct scan_entry *)
 345         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 346     zebra_scan (zh, r->stream, r->term,
 347                 r->attributeset,
 348                 &r->term_position,
 349                 &r->num_entries, &entries, &is_partial);
 350     if (is_partial)
 351         r->status = BEND_SCAN_PARTIAL;
 352     else
 353         r->status = BEND_SCAN_SUCCESS;
 354     for (i = 0; i < r->num_entries; i++)
 355     {
 356         r->entries[i].term = entries[i].term;
 357         r->entries[i].occurrences = entries[i].occurrences;
 358     }
 359     zebra_result (zh, &r->errcode, &r->errstring);
 360     return 0;
 361 }
 362
 363 void bend_close (void *handle)
 364 {
 365     zebra_close ((ZebraHandle) handle);
 366     xmalloc_trav("bend_close");
 367     nmem_print_list();
 368 }
 369
 370 int bend_sort (void *handle, bend_sort_rr *rr)
 371 {
 372     ZebraHandle zh = (ZebraHandle) handle;
 373
 374     zebra_sort (zh, rr->stream,
 375                 rr->num_input_setnames, (const char **) rr->input_setnames,
 376                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 377     zebra_result (zh, &rr->errcode, &rr->errstring);
 378     return 0;
 379 }
 380
 381 int bend_delete (void *handle, bend_delete_rr *rr)
 382 {
 383     ZebraHandle zh = (ZebraHandle) handle;
 384
 385     rr->delete_status = zebra_deleleResultSet(zh, rr->function,
 386                                               rr->num_setnames, rr->setnames,
 387                                               rr->statuses);
 388     return 0;
 389 }
 390
 391 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 392 {
 393     if (r->toKeep->databaseName)
 394     {
 395         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 396     }
 397     switch (r->toKeep->which)
 398     {
 399     case Z_ESAdminOriginPartToKeep_reIndex:
 400         yaz_log(YLOG_LOG, "adm-reindex");
 401         break;
 402     case Z_ESAdminOriginPartToKeep_truncate:
 403         yaz_log(YLOG_LOG, "adm-truncate");
 404         break;
 405     case Z_ESAdminOriginPartToKeep_drop:
 406         yaz_log(YLOG_LOG, "adm-drop");
 407         zebra_drop_database (zh, r->toKeep->databaseName);
 408         break;
 409     case Z_ESAdminOriginPartToKeep_create:
 410         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 411         zebra_create_database (zh, r->toKeep->databaseName);
 412         break;
 413     case Z_ESAdminOriginPartToKeep_import:
 414         yaz_log(YLOG_LOG, "adm-import");
 415         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 416                         r->toKeep->u.import->recordType);
 417         break;
 418     case Z_ESAdminOriginPartToKeep_refresh:
 419         yaz_log(YLOG_LOG, "adm-refresh");
 420         break;
 421     case Z_ESAdminOriginPartToKeep_commit:
 422         yaz_log(YLOG_LOG, "adm-commit");
 423         if (r->toKeep->databaseName)
 424             zebra_select_database(zh, r->toKeep->databaseName);
 425         zebra_commit(zh);
 426         break;
 427     case Z_ESAdminOriginPartToKeep_shutdown:
 428         yaz_log(YLOG_LOG, "shutdown");
 429         zebra_admin_shutdown(zh);
 430         break;
 431     case Z_ESAdminOriginPartToKeep_start:
 432         yaz_log(YLOG_LOG, "start");
 433         zebra_admin_start(zh);
 434         break;
 435     default:
 436         yaz_log(YLOG_LOG, "unknown admin");
 437     }
 438     return 0;
 439 }
 440
 441 static int es_admin (ZebraHandle zh, Z_Admin *r)
 442 {
 443     switch (r->which)
 444     {
 445     case Z_Admin_esRequest:
 446         es_admin_request (zh, r->u.esRequest);
 447         break;
 448     case Z_Admin_taskPackage:
 449         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 450         break;
 451     default:
 452         break;
 453     }
 454
 455     return 0;
 456 }
 457
 458 int bend_segment (void *handle, bend_segment_rr *rr)
 459 {
 460     ZebraHandle zh = (ZebraHandle) handle;
 461     Z_Segment *segment = rr->segment;
 462
 463     if (segment->num_segmentRecords)
 464         zebra_admin_import_segment (zh, rr->segment);
 465     else
 466         zebra_admin_import_end (zh);
 467     return 0;
 468 }
 469
 470 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 471 {
 472     ZebraHandle zh = (ZebraHandle) handle;
 473
 474     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 475     if (rr->esr->packageName)
 476         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 477     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 478
 479     if (!rr->esr->taskSpecificParameters)
 480     {
 481         yaz_log (YLOG_WARN, "No task specific parameters");
 482     }
 483     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 484     {
 485         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 486
 487         zebra_result (zh, &rr->errcode, &rr->errstring);
 488     }
 489     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 490     {
 491         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 492         yaz_log (YLOG_LOG, "Received DB Update");
 493         if (up->which == Z_IUUpdate_esRequest)
 494         {
 495             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 496             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 497             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 498
 499             yaz_log (YLOG_LOG, "action");
 500             if (toKeep->action)
 501             {
 502                 switch (*toKeep->action)
 503                 {
 504                 case Z_IUOriginPartToKeep_recordInsert:
 505                     yaz_log (YLOG_LOG, "recordInsert");
 506                     break;
 507                 case Z_IUOriginPartToKeep_recordReplace:
 508                     yaz_log (YLOG_LOG, "recordUpdate");
 509                     break;
 510                 case Z_IUOriginPartToKeep_recordDelete:
 511                     yaz_log (YLOG_LOG, "recordDelete");
 512                     break;
 513                 case Z_IUOriginPartToKeep_elementUpdate:
 514                     yaz_log (YLOG_LOG, "elementUpdate");
 515                     break;
 516                 case Z_IUOriginPartToKeep_specialUpdate:
 517                     yaz_log (YLOG_LOG, "specialUpdate");
 518                     break;
 519                 case Z_ESAdminOriginPartToKeep_shutdown:
 520                     yaz_log (YLOG_LOG, "shutDown");
 521                     break;
 522                 case Z_ESAdminOriginPartToKeep_start:
 523                     yaz_log (YLOG_LOG, "start");
 524                     break;
 525                 default:
 526                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 527                 }
 528             }
 529             if (toKeep->databaseName)
 530             {
 531                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 532
 533                 if (zebra_select_database(zh, toKeep->databaseName))
 534                     return 0;
 535             }
 536             else
 537             {
 538                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 539                 rr->errcode = 1008;
 540                 rr->errstring = "database";
 541                 return 0;
 542             }
 543             if (notToKeep)
 544             {
 545                 int i;
 546                 zebra_begin_trans (zh, 1);
 547                 for (i = 0; i < notToKeep->num; i++)
 548                 {
 549                     Z_External *rec = notToKeep->elements[i]->record;
 550                     struct oident *oident = 0;
 551                     Odr_oct *opaque_recid = 0;
 552                     SYSNO sysno = 0;
 553
 554                     if (notToKeep->elements[i]->u.opaque)
 555                     {
 556                         switch(notToKeep->elements[i]->which)
 557                         {
 558                         case Z_IUSuppliedRecords_elem_opaque:
 559                             opaque_recid = notToKeep->elements[i]->u.opaque;
 560                             break; /* OK, recid already set */
 561                         case Z_IUSuppliedRecords_elem_number:
 562                             sysno = *notToKeep->elements[i]->u.number;
 563                             break;
 564                         }
 565                     }
 566                     if (rec->direct_reference)
 567                     {
 568                         oident = oid_getentbyoid(rec->direct_reference);
 569                         if (oident)
 570                             yaz_log (YLOG_LOG, "record %d type %s", i,
 571                                      oident->desc);
 572                     }
 573                     switch (rec->which)
 574                     {
 575                     case Z_External_sutrs:
 576                         if (rec->u.octet_aligned->len > 170)
 577                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 578                                      rec->u.sutrs->len,
 579                                      rec->u.sutrs->buf);
 580                         else
 581                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 582                                      rec->u.sutrs->len,
 583                                      rec->u.sutrs->buf);
 584                         break;
 585                     case Z_External_octet:
 586                         if (rec->u.octet_aligned->len > 170)
 587                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 588                                      rec->u.octet_aligned->len,
 589                                      rec->u.octet_aligned->buf);
 590                         else
 591                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 592                                      rec->u.octet_aligned->len,
 593                                      rec->u.octet_aligned->buf);
 594                     }
 595                     if (oident && oident->value != VAL_TEXT_XML)
 596                     {
 597                         rr->errcode = 224;
 598                         rr->errstring = "only XML update supported";
 599                         break;
 600                     }
 601                     if (rec->which == Z_External_octet)
 602                     {
 603                         int action = 0;
 604
 605                         if (*toKeep->action ==
 606                             Z_IUOriginPartToKeep_recordInsert)
 607                             action = 1;
 608                         if (*toKeep->action ==
 609                             Z_IUOriginPartToKeep_recordReplace)
 610                             action = 2;
 611                         if (*toKeep->action ==
 612                             Z_IUOriginPartToKeep_recordDelete)
 613                             action = 3;
 614                         if (*toKeep->action ==
 615                             Z_IUOriginPartToKeep_specialUpdate)
 616                             action = 4;
 617
 618                         if (!action)
 619                         {
 620                             rr->errcode = 224;
 621                             rr->errstring = "unsupported ES Update action";
 622                             break;
 623                         }
 624                         else if (opaque_recid)
 625                         {
 626                             int r = zebra_admin_exchange_record (
 627                                 zh,
 628                                 rec->u.octet_aligned->buf,
 629                                 rec->u.octet_aligned->len,
 630                                 opaque_recid->buf, opaque_recid->len,
 631                                 action);
 632                             if (r)
 633                             {
 634                                 rr->errcode = 224;
 635                                 rr->errstring = "record exchange failed";
 636                                 break;
 637                             }
 638                         }
 639                         else
 640                         {
 641                             int r = -1;
 642                             switch(action) {
 643                             case 1:
 644                                 r = zebra_insert_record(
 645                                     zh,
 646                                     0, /* recordType */
 647                                     &sysno,
 648                                     0, /* match */
 649                                     0, /* fname */
 650                                     rec->u.octet_aligned->buf,
 651                                     rec->u.octet_aligned->len,
 652                                     0);
 653                                 if (r)
 654                                 {
 655                                     rr->errcode = 224;
 656                                     rr->errstring = "insert_record failed";
 657                                 }
 658                                 break;
 659                             case 2:
 660                             case 4:
 661                                 r = zebra_update_record(
 662                                     zh,
 663                                     0, /* recordType */
 664                                     &sysno,
 665                                     0, /* match */
 666                                     0, /* fname */
 667                                     rec->u.octet_aligned->buf,
 668                                     rec->u.octet_aligned->len,
 669                                     1);
 670                                 if (r)
 671                                 {
 672                                     rr->errcode = 224;
 673                                     rr->errstring = "update_record failed";
 674                                 }
 675                                 break;
 676                             case 3:
 677                                 r = zebra_delete_record(
 678                                     zh,
 679                                     0, /* recordType */
 680                                     &sysno,
 681                                     0, /* match */
 682                                     0, /* fname */
 683                                     rec->u.octet_aligned->buf,
 684                                     rec->u.octet_aligned->len,
 685                                     0);
 686                                 if (r)
 687                                 {
 688                                     rr->errcode = 224;
 689                                     rr->errstring = "delete_record failed";
 690                                 }
 691                                 break;
 692                             }
 693                         }
 694                     }
 695                 }
 696                 zebra_end_trans (zh);
 697             }
 698         }
 699     }
 700     else
 701     {
 702         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 703                  rr->esr->taskSpecificParameters->which);
 704         rr->errcode = 221;
 705
 706     }
 707     return 0;
 708 }
 709
 710 static void bend_start (struct statserv_options_block *sob)
 711 {
 712     if (sob->handle)
 713         zebra_stop((ZebraService) sob->handle);
 714     sob->handle = zebra_start(sob->configname);
 715     if (!sob->handle)
 716     {
 717         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 718         exit (1);
 719     }
 720 #ifdef WIN32
 721
 722 #else
 723     if (!sob->inetd)
 724     {
 725         char pidfname[4096];
 726         struct flock area;
 727         int fd;
 728
 729         zebra_pidfname(sob->handle, pidfname);
 730
 731         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 732         if (fd == -1)
 733         {
 734             if (errno != EEXIST)
 735             {
 736                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 737                 exit(1);
 738             }
 739             fd = open(pidfname, O_RDWR, 0666);
 740             if (fd == -1)
 741             {
 742                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 743                 exit(1);
 744             }
 745         }
 746         area.l_type = F_WRLCK;
 747         area.l_whence = SEEK_SET;
 748         area.l_len = area.l_start = 0L;
 749         if (fcntl (fd, F_SETLK, &area) == -1)
 750         {
 751             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 752             exit(1);
 753         }
 754         else
 755         {
 756             char pidstr[30];
 757
 758             sprintf (pidstr, "%ld", (long) getpid ());
 759             write (fd, pidstr, strlen(pidstr));
 760         }
 761     }
 762 #endif
 763 }
 764
 765 static void bend_stop(struct statserv_options_block *sob)
 766 {
 767 #ifdef WIN32
 768
 769 #else
 770     if (!sob->inetd && sob->handle)
 771     {
 772         char pidfname[4096];
 773         zebra_pidfname(sob->handle, pidfname);
 774         unlink (pidfname);
 775     }
 776 #endif
 777     if (sob->handle)
 778     {
 779         ZebraService service = sob->handle;
 780         zebra_stop(service);
 781     }
 782 }
 783
 784 int main (int argc, char **argv)
 785 {
 786     struct statserv_options_block *sob;
 787
 788     sob = statserv_getcontrol ();
 789     strcpy (sob->configname, "zebra.cfg");
 790     sob->bend_start = bend_start;
 791     sob->bend_stop = bend_stop;
 792 #ifdef WIN32
 793     strcpy (sob->service_display_name, "Zebra Server");
 794 #endif
 795     statserv_setcontrol (sob);
 796
 797     return statserv_main (argc, argv, bend_init, bend_close);
 798 }