Honor fileVerboseLimit for zebra_add_record (buffer_extract_record)
[idzebra-moved-to-github.git] / index / zserver.c
1 /* $Id: zserver.c,v 1.130 2005-03-08 14:02:12 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     zint zhits = 0;
266
267     r->hits = 0;
268     r->errcode = 0;
269     r->errstring = NULL;
270     
271     if (zebra_select_databases (zh, r->num_bases,
272                                 (const char **) r->basenames))
273     {
274         zebra_result (zh, &r->errcode, &r->errstring);
275         return 0;
276     }
277     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
278     switch (r->query->which)
279     {
280     case Z_Query_type_1: case Z_Query_type_101:
281         zebra_search_RPN (zh, r->stream, r->query->u.type_1,
282                           r->setname, &zhits);
283         if (zhits >   2147483646)
284             r->hits = 2147483647;
285         else
286             r->hits = (int) zhits;
287         zebra_result (zh, &r->errcode, &r->errstring);
288         if (!r->errcode)
289             search_terms (zh, r);
290         break;
291     case Z_Query_type_2:
292         r->errcode = 107;
293         r->errstring = "type-2";
294         break;
295     default:
296         r->errcode = 107;
297     }
298     return 0;
299 }
300
301
302 int bend_fetch (void *handle, bend_fetch_rr *r)
303 {
304     ZebraHandle zh = (ZebraHandle) handle;
305     ZebraRetrievalRecord retrievalRecord;
306
307     retrievalRecord.position = r->number;
308     
309     r->last_in_set = 0;
310     zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
311                             r->request_format, 1, &retrievalRecord);
312     zebra_result (zh, &r->errcode, &r->errstring);
313     /*  non Surrogate Diagnostic OR Surrogate Diagnostic */
314     if (r->errcode == 0 && retrievalRecord.errCode)
315     {
316         r->surrogate_flag = 1;
317         r->errcode = retrievalRecord.errCode;
318         r->errstring = retrievalRecord.errString;
319         r->basename = retrievalRecord.base;
320     }
321     else if (r->errcode == 0)        /* Database Record */
322     {
323         r->errcode = 0;
324         r->basename = retrievalRecord.base;
325         r->record = retrievalRecord.buf;
326         r->len = retrievalRecord.len;
327         r->output_format = retrievalRecord.format;
328     }
329     return 0;
330 }
331
332 static int bend_scan (void *handle, bend_scan_rr *r)
333 {
334     ZebraScanEntry *entries;
335     ZebraHandle zh = (ZebraHandle) handle;
336     int is_partial, i;
337
338     if (zebra_select_databases (zh, r->num_bases, 
339                                 (const char **) r->basenames))
340     {
341         zebra_result (zh, &r->errcode, &r->errstring);
342         return 0;
343     }
344     if (r->step_size != 0 && *r->step_size != 0) {
345         r->errcode = 205; /* "Only zero step size supported for Scan" */
346         r->errstring = 0;
347         return 0;
348     }
349     r->entries = (struct scan_entry *)
350         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
351     zebra_scan (zh, r->stream, r->term,
352                 r->attributeset,
353                 &r->term_position,
354                 &r->num_entries, &entries, &is_partial);
355     if (is_partial)
356         r->status = BEND_SCAN_PARTIAL;
357     else
358         r->status = BEND_SCAN_SUCCESS;
359     for (i = 0; i < r->num_entries; i++)
360     {
361         r->entries[i].term = entries[i].term;
362         r->entries[i].occurrences = entries[i].occurrences;
363     }
364     zebra_result (zh, &r->errcode, &r->errstring);
365     return 0;
366 }
367
368 void bend_close (void *handle)
369 {
370     zebra_close ((ZebraHandle) handle);
371     xmalloc_trav("bend_close");
372     nmem_print_list();
373 }
374
375 int bend_sort (void *handle, bend_sort_rr *rr)
376 {
377     ZebraHandle zh = (ZebraHandle) handle;
378
379     zebra_sort (zh, rr->stream,
380                 rr->num_input_setnames, (const char **) rr->input_setnames,
381                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
382     zebra_result (zh, &rr->errcode, &rr->errstring);
383     return 0;
384 }
385
386 int bend_delete (void *handle, bend_delete_rr *rr)
387 {
388     ZebraHandle zh = (ZebraHandle) handle;
389
390     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
391                                               rr->num_setnames, rr->setnames,
392                                               rr->statuses);
393     return 0;
394 }
395
396 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
397 {
398     if (r->toKeep->databaseName)
399     {
400         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
401     }
402     switch (r->toKeep->which)
403     {
404     case Z_ESAdminOriginPartToKeep_reIndex:
405         yaz_log(YLOG_LOG, "adm-reindex");
406         break;
407     case Z_ESAdminOriginPartToKeep_truncate:
408         yaz_log(YLOG_LOG, "adm-truncate");
409         break;
410     case Z_ESAdminOriginPartToKeep_drop:
411         yaz_log(YLOG_LOG, "adm-drop");
412         zebra_drop_database (zh, r->toKeep->databaseName);
413         break;
414     case Z_ESAdminOriginPartToKeep_create:
415         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
416         zebra_create_database (zh, r->toKeep->databaseName);
417         break;
418     case Z_ESAdminOriginPartToKeep_import:
419         yaz_log(YLOG_LOG, "adm-import");
420         zebra_admin_import_begin (zh, r->toKeep->databaseName,
421                         r->toKeep->u.import->recordType);
422         break;
423     case Z_ESAdminOriginPartToKeep_refresh:
424         yaz_log(YLOG_LOG, "adm-refresh");
425         break;
426     case Z_ESAdminOriginPartToKeep_commit:
427         yaz_log(YLOG_LOG, "adm-commit");
428         if (r->toKeep->databaseName)
429             zebra_select_database(zh, r->toKeep->databaseName);
430         zebra_commit(zh);
431         break;
432     case Z_ESAdminOriginPartToKeep_shutdown:
433         yaz_log(YLOG_LOG, "shutdown");
434         zebra_admin_shutdown(zh);
435         break;
436     case Z_ESAdminOriginPartToKeep_start:
437         yaz_log(YLOG_LOG, "start");
438         zebra_admin_start(zh);
439         break;
440     default:
441         yaz_log(YLOG_LOG, "unknown admin");
442     }
443     return 0;
444 }
445
446 static int es_admin (ZebraHandle zh, Z_Admin *r)
447 {
448     switch (r->which)
449     {
450     case Z_Admin_esRequest:
451         es_admin_request (zh, r->u.esRequest);
452         break;
453     case Z_Admin_taskPackage:
454         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
455         break;
456     default:
457         break;
458     }
459
460     return 0;
461 }
462
463 int bend_segment (void *handle, bend_segment_rr *rr)
464 {
465     ZebraHandle zh = (ZebraHandle) handle;
466     Z_Segment *segment = rr->segment;
467
468     if (segment->num_segmentRecords)
469         zebra_admin_import_segment (zh, rr->segment);
470     else
471         zebra_admin_import_end (zh);
472     return 0;
473 }
474
475 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
476 {
477     ZebraHandle zh = (ZebraHandle) handle;
478     
479     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
480     if (rr->esr->packageName)
481         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
482     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
483
484     if (!rr->esr->taskSpecificParameters)
485     {
486         yaz_log (YLOG_WARN, "No task specific parameters");
487     }
488     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
489     {
490         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
491
492         zebra_result (zh, &rr->errcode, &rr->errstring);
493     }
494     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
495     {
496         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
497         yaz_log (YLOG_LOG, "Received DB Update");
498         if (up->which == Z_IUUpdate_esRequest)
499         {
500             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
501             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
502             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
503             
504             yaz_log (YLOG_LOG, "action");
505             if (toKeep->action)
506             {
507                 switch (*toKeep->action)
508                 {
509                 case Z_IUOriginPartToKeep_recordInsert:
510                     yaz_log (YLOG_LOG, "recordInsert");
511                     break;
512                 case Z_IUOriginPartToKeep_recordReplace:
513                     yaz_log (YLOG_LOG, "recordUpdate");
514                     break;
515                 case Z_IUOriginPartToKeep_recordDelete:
516                     yaz_log (YLOG_LOG, "recordDelete");
517                     break;
518                 case Z_IUOriginPartToKeep_elementUpdate:
519                     yaz_log (YLOG_LOG, "elementUpdate");
520                     break;
521                 case Z_IUOriginPartToKeep_specialUpdate:
522                     yaz_log (YLOG_LOG, "specialUpdate");
523                     break;
524                 case Z_ESAdminOriginPartToKeep_shutdown:
525                     yaz_log (YLOG_LOG, "shutDown");
526                     break;
527                 case Z_ESAdminOriginPartToKeep_start:
528                     yaz_log (YLOG_LOG, "start");
529                     break;
530                 default:
531                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
532                 }
533             }
534             if (toKeep->databaseName)
535             {
536                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
537
538                 if (zebra_select_database(zh, toKeep->databaseName))
539                     return 0;
540             }
541             else
542             {
543                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
544                 rr->errcode = 1008;
545                 rr->errstring = "database";
546                 return 0;
547             }
548             if (notToKeep)
549             {
550                 int i;
551                 zebra_begin_trans (zh, 1);
552                 for (i = 0; i < notToKeep->num; i++)
553                 {
554                     Z_External *rec = notToKeep->elements[i]->record;
555                     struct oident *oident = 0;
556                     Odr_oct *opaque_recid = 0;
557                     SYSNO sysno = 0;
558
559                     if (notToKeep->elements[i]->u.opaque)
560                     {
561                         switch(notToKeep->elements[i]->which)
562                         {
563                         case Z_IUSuppliedRecords_elem_opaque:
564                             opaque_recid = notToKeep->elements[i]->u.opaque;
565                             break; /* OK, recid already set */
566                         case Z_IUSuppliedRecords_elem_number:
567                             sysno = *notToKeep->elements[i]->u.number;
568                             break;
569                         }
570                     }
571                     if (rec->direct_reference)
572                     {
573                         oident = oid_getentbyoid(rec->direct_reference);
574                         if (oident)
575                             yaz_log (YLOG_LOG, "record %d type %s", i,
576                                      oident->desc);
577                     }
578                     switch (rec->which)
579                     {
580                     case Z_External_sutrs:
581                         if (rec->u.octet_aligned->len > 170)
582                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
583                                      rec->u.sutrs->len,
584                                      rec->u.sutrs->buf);
585                         else
586                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
587                                      rec->u.sutrs->len,
588                                      rec->u.sutrs->buf);
589                         break;
590                     case Z_External_octet:
591                         if (rec->u.octet_aligned->len > 170)
592                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
593                                      rec->u.octet_aligned->len,
594                                      rec->u.octet_aligned->buf);
595                         else
596                             yaz_log (YLOG_LOG, "%d bytes\n%s",
597                                      rec->u.octet_aligned->len,
598                                      rec->u.octet_aligned->buf);
599                     }
600                     if (oident && oident->value != VAL_TEXT_XML)
601                     {
602                         rr->errcode = 224;
603                         rr->errstring = "only XML update supported";
604                         break;
605                     }
606                     if (rec->which == Z_External_octet)
607                     {
608                         int action = 0;
609
610                         if (*toKeep->action ==
611                             Z_IUOriginPartToKeep_recordInsert)
612                             action = 1;
613                         if (*toKeep->action ==
614                             Z_IUOriginPartToKeep_recordReplace)
615                             action = 2;
616                         if (*toKeep->action ==
617                             Z_IUOriginPartToKeep_recordDelete)
618                             action = 3;
619                         if (*toKeep->action ==
620                             Z_IUOriginPartToKeep_specialUpdate)
621                             action = 4;
622
623                         if (!action)
624                         {
625                             rr->errcode = 224;
626                             rr->errstring = "unsupported ES Update action";
627                             break;
628                         }
629                         else if (opaque_recid)
630                         {
631                             int r = zebra_admin_exchange_record (
632                                 zh,
633                                 rec->u.octet_aligned->buf,
634                                 rec->u.octet_aligned->len,
635                                 opaque_recid->buf, opaque_recid->len,
636                                 action);
637                             if (r)
638                             {
639                                 rr->errcode = 224;
640                                 rr->errstring = "record exchange failed";
641                                 break;
642                             }
643                         }
644                         else
645                         {
646                             int r = -1;
647                             switch(action) {
648                             case 1:
649                                 r = zebra_insert_record(
650                                     zh,
651                                     0, /* recordType */
652                                     &sysno,
653                                     0, /* match */
654                                     0, /* fname */
655                                     rec->u.octet_aligned->buf,
656                                     rec->u.octet_aligned->len,
657                                     0);
658                                 if (r)
659                                 {
660                                     rr->errcode = 224;
661                                     rr->errstring = "insert_record failed";
662                                 }
663                                 break;
664                             case 2:
665                             case 4:
666                                 r = zebra_update_record(
667                                     zh,
668                                     0, /* recordType */
669                                     &sysno,
670                                     0, /* match */
671                                     0, /* fname */
672                                     rec->u.octet_aligned->buf,
673                                     rec->u.octet_aligned->len,
674                                     1);
675                                 if (r)
676                                 {
677                                     rr->errcode = 224;
678                                     rr->errstring = "update_record failed";
679                                 }
680                                 break;
681                             case 3:
682                                 r = zebra_delete_record(
683                                     zh,
684                                     0, /* recordType */
685                                     &sysno,
686                                     0, /* match */
687                                     0, /* fname */
688                                     rec->u.octet_aligned->buf,
689                                     rec->u.octet_aligned->len,
690                                     0);
691                                 if (r)
692                                 {
693                                     rr->errcode = 224;
694                                     rr->errstring = "delete_record failed";
695                                 }
696                                 break;
697                             }                           
698                         }
699                     }
700                 }
701                 zebra_end_trans (zh);
702             }
703         }
704     }
705     else
706     {
707         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
708                  rr->esr->taskSpecificParameters->which);
709         rr->errcode = 221;
710         
711     }
712     return 0;
713 }
714
715 static void bend_start (struct statserv_options_block *sob)
716 {
717     if (sob->handle)
718         zebra_stop((ZebraService) sob->handle);
719     sob->handle = zebra_start(sob->configname);
720     if (!sob->handle)
721     {
722         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
723         exit (1);
724     }
725 #ifdef WIN32
726     
727 #else
728     if (!sob->inetd) 
729     {
730         char pidfname[4096];
731         struct flock area;
732         int fd;
733
734         zebra_pidfname(sob->handle, pidfname);
735
736         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
737         if (fd == -1)
738         {
739             if (errno != EEXIST)
740             {
741                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
742                 exit(1);
743             }
744             fd = open(pidfname, O_RDWR, 0666);
745             if (fd == -1)
746             {
747                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
748                 exit(1);
749             }
750         }
751         area.l_type = F_WRLCK;
752         area.l_whence = SEEK_SET;
753         area.l_len = area.l_start = 0L;
754         if (fcntl (fd, F_SETLK, &area) == -1)
755         {
756             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
757             exit(1);
758         }
759         else
760         {
761             char pidstr[30];
762         
763             sprintf (pidstr, "%ld", (long) getpid ());
764             write (fd, pidstr, strlen(pidstr));
765         }
766     }
767 #endif
768 }
769
770 static void bend_stop(struct statserv_options_block *sob)
771 {
772 #ifdef WIN32
773
774 #else
775     if (!sob->inetd && sob->handle) 
776     {
777         char pidfname[4096];
778         zebra_pidfname(sob->handle, pidfname);
779         unlink (pidfname);
780     }
781 #endif
782     if (sob->handle)
783     {
784         ZebraService service = sob->handle;
785         zebra_stop(service);
786     }
787 }
788
789 int main (int argc, char **argv)
790 {
791     struct statserv_options_block *sob;
792
793     sob = statserv_getcontrol ();
794     strcpy (sob->configname, "zebra.cfg");
795     sob->bend_start = bend_start;
796     sob->bend_stop = bend_stop;
797 #ifdef WIN32
798     strcpy (sob->service_display_name, "Zebra Server");
799 #endif
800     statserv_setcontrol (sob);
801
802     return statserv_main (argc, argv, bend_init, bend_close);
803 }