2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.85 1998-11-17 09:52:59 adam
8 * Fixed minor bug (introduced by previous commit).
10 * Revision 1.84 1998/11/16 16:02:32 adam
11 * Added loggin utilies, log_rpn_query and log_scan_term. These used
12 * to be part of Zebra.
14 * Revision 1.83 1998/11/03 10:09:36 adam
15 * Fixed bug regarding YC.
17 * Revision 1.82 1998/10/20 14:00:30 quinn
20 * Revision 1.81 1998/10/13 16:12:24 adam
21 * Added support for Surrogate Diagnostics for Scan Term entries.
23 * Revision 1.80 1998/09/02 12:41:53 adam
24 * Added decode stream in bend search structures.
26 * Revision 1.79 1998/08/19 16:10:08 adam
27 * Changed som member names of DeleteResultSetRequest/Response.
29 * Revision 1.78 1998/08/03 10:23:55 adam
30 * Fixed bug regarding Options for Sort.
32 * Revision 1.77 1998/07/20 12:38:42 adam
33 * Implemented delete result set service to server API.
35 * Revision 1.76 1998/05/27 16:57:07 adam
36 * Support for surrogate diagnostic records added for bend_fetch.
38 * Revision 1.75 1998/05/18 10:13:07 adam
39 * Fixed call to es_request handler - extra argument was passed.
41 * Revision 1.74 1998/03/31 15:13:20 adam
42 * Development towards compiled ASN.1.
44 * Revision 1.73 1998/03/31 11:07:45 adam
45 * Furhter work on UNIverse resource report.
46 * Added Extended Services handling in frontend server.
48 * Revision 1.72 1998/02/11 11:53:35 adam
49 * Changed code so that it compiles as C++.
51 * Revision 1.71 1998/02/10 11:03:57 adam
52 * Added support for extended handlers in backend server interface.
54 * Revision 1.70 1998/01/29 13:15:35 adam
55 * Implemented sort for the backend interface.
57 * Revision 1.69 1997/09/30 11:48:12 adam
58 * Fixed bug introduced by previous commit.
60 * Revision 1.68 1997/09/29 13:18:59 adam
61 * Added function, oid_ent_to_oid, to replace the function
62 * oid_getoidbyent, which is not thread safe.
64 * Revision 1.67 1997/09/17 12:10:40 adam
67 * Revision 1.66 1997/09/05 15:26:44 adam
68 * Added ODR encode in search and scen bend request structures.
69 * Fixed a few enums that caused trouble with C++.
71 * Revision 1.65 1997/09/01 08:53:01 adam
72 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
73 * moved a separate directory. MSV5.0 project server.dsp created.
74 * As an option, the server can now operate as an NT service.
76 * Revision 1.64 1997/04/30 08:52:11 quinn
79 * Revision 1.63 1996/10/11 11:57:26 quinn
82 * Revision 1.62 1996/07/06 19:58:35 quinn
83 * System headerfiles gathered in yconfig
85 * Revision 1.61 1996/06/10 08:56:16 quinn
88 * Revision 1.60 1996/05/30 11:03:10 quinn
89 * Fixed NextresultSetPosition bug fixed.
91 * Revision 1.59 1996/05/14 09:26:46 quinn
92 * Added attribute set to scan backend
94 * Revision 1.58 1996/02/20 12:53:04 quinn
97 * Revision 1.57 1996/01/02 08:57:47 quinn
98 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
100 * Revision 1.56 1995/12/14 11:09:57 quinn
103 * Revision 1.55 1995/11/08 17:41:37 quinn
106 * Revision 1.54 1995/11/08 15:11:29 quinn
107 * Log of close transmit.
109 * Revision 1.53 1995/11/01 13:54:58 quinn
112 * Revision 1.52 1995/11/01 12:19:13 quinn
113 * Second attempt to fix same bug.
115 * Revision 1.50 1995/10/25 16:58:32 quinn
118 * Revision 1.49 1995/10/16 13:51:53 quinn
119 * Changes to provide Especs to the backend.
121 * Revision 1.48 1995/10/06 08:51:20 quinn
122 * Added Write-buffer.
124 * Revision 1.47 1995/08/29 14:24:16 quinn
125 * Added second half of close-handshake
127 * Revision 1.46 1995/08/29 11:17:58 quinn
128 * Added code to receive close
130 * Revision 1.45 1995/08/21 09:11:00 quinn
131 * Smallish fixes to suppport new formats.
133 * Revision 1.44 1995/08/17 12:45:25 quinn
134 * Fixed minor problems with GRS-1. Added support in c&s.
136 * Revision 1.43 1995/08/15 12:00:31 quinn
139 * Revision 1.42 1995/08/15 11:16:50 quinn
141 * Revision 1.41 1995/08/02 10:23:06 quinn
144 * Revision 1.40 1995/07/31 14:34:26 quinn
145 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
147 * Revision 1.39 1995/06/27 13:21:00 quinn
150 * Revision 1.38 1995/06/19 12:39:11 quinn
151 * Fixed bug in timeout code. Added BER dumper.
153 * Revision 1.37 1995/06/16 13:16:14 quinn
154 * Fixed Defaultdiagformat.
156 * Revision 1.36 1995/06/16 10:31:36 quinn
157 * Added session timeout.
159 * Revision 1.35 1995/06/15 07:45:14 quinn
162 * Revision 1.34 1995/06/14 15:26:46 quinn
163 * *** empty log message ***
165 * Revision 1.33 1995/06/06 14:57:05 quinn
166 * Better diagnostics.
168 * Revision 1.32 1995/06/06 08:41:44 quinn
169 * Better diagnostics.
171 * Revision 1.31 1995/06/06 08:15:37 quinn
174 * Revision 1.30 1995/06/05 10:53:32 quinn
175 * Added a better SCAN.
177 * Revision 1.29 1995/06/01 11:25:03 quinn
180 * Revision 1.28 1995/06/01 11:21:01 quinn
181 * Attempting to fix a bug in pack-records. replaced break with continue
182 * for large records, according to standard.
184 * Revision 1.27 1995/05/29 08:12:06 quinn
187 * Revision 1.26 1995/05/18 13:02:12 quinn
190 * Revision 1.25 1995/05/17 08:42:26 quinn
191 * Transfer auth info to backend. Allow backend to reject init gracefully.
193 * Revision 1.24 1995/05/16 08:51:04 quinn
194 * License, documentation, and memory fixes
196 * Revision 1.23 1995/05/15 13:25:10 quinn
199 * Revision 1.22 1995/05/15 11:56:39 quinn
200 * Asynchronous facilities. Restructuring of seshigh code.
202 * Revision 1.21 1995/05/02 08:53:19 quinn
203 * Trying in vain to fix comm with ISODE
205 * Revision 1.20 1995/04/20 15:13:00 quinn
208 * Revision 1.19 1995/04/18 08:15:34 quinn
209 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
210 * neater. We'll make the same change for decoding one day.
212 * Revision 1.18 1995/04/17 11:28:25 quinn
215 * Revision 1.17 1995/04/10 10:23:36 quinn
216 * Some work to add scan and other things.
218 * Revision 1.16 1995/03/31 09:18:55 quinn
221 * Revision 1.15 1995/03/30 14:03:23 quinn
222 * Added RFC1006 as separate library
224 * Revision 1.14 1995/03/30 12:18:17 quinn
227 * Revision 1.13 1995/03/30 09:09:24 quinn
228 * Added state-handle and some support for asynchronous activities.
230 * Revision 1.12 1995/03/29 15:40:16 quinn
231 * Ongoing work. Statserv is now dynamic by default
233 * Revision 1.11 1995/03/28 09:16:21 quinn
234 * Added record packing to the search request
236 * Revision 1.10 1995/03/27 08:34:24 quinn
237 * Added dynamic server functionality.
238 * Released bindings to session.c (is now redundant)
240 * Revision 1.9 1995/03/22 15:01:26 quinn
241 * Adjusting record packing.
243 * Revision 1.8 1995/03/22 10:13:21 quinn
244 * Working on record packer
246 * Revision 1.7 1995/03/21 15:53:31 quinn
249 * Revision 1.6 1995/03/21 12:30:09 quinn
250 * Beginning to add support for record packing.
252 * Revision 1.5 1995/03/17 10:44:13 quinn
253 * Added catch of null-string in makediagrec
255 * Revision 1.4 1995/03/17 10:18:08 quinn
256 * Added memory management.
258 * Revision 1.3 1995/03/16 17:42:39 quinn
261 * Revision 1.2 1995/03/16 13:29:01 quinn
262 * Partitioned server.
264 * Revision 1.1 1995/03/15 16:02:10 quinn
265 * Modded session.c to seshigh.c
270 * Frontend server logic.
272 * This code receives incoming APDUs, and handles client requests by means
273 * of the backend API.
275 * Some of the code is getting quite involved, compared to simpler servers -
276 * primarily because it is asynchronous both in the communication with
277 * the user and the backend. We think the complexity will pay off in
278 * the form of greater flexibility when more asynchronous facilities
281 * Memory management has become somewhat involved. In the simple case, where
282 * only one PDU is pending at a time, it will simply reuse the same memory,
283 * once it has found its working size. When we enable multiple concurrent
284 * operations, perhaps even with multiple parallel calls to the backend, it
285 * will maintain a pool of buffers for encoding and decoding, trying to
286 * minimize memory allocation/deallocation during normal operation.
288 * TODOs include (and will be done in order of public interest):
290 * Support for EXPLAIN - provide simple meta-database system.
291 * Support for access control.
292 * Support for resource control.
293 * Support for extended services - primarily Item Order.
294 * Rest of Z39.50-1994
309 #include <comstack.h>
316 #include <statserv.h>
320 static int process_request(association *assoc, request *req);
321 void backend_response(IOCHAN i, int event);
322 static int process_response(association *assoc, request *req, Z_APDU *res);
323 static Z_APDU *process_initRequest(association *assoc, request *reqb);
324 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
326 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
327 bend_search_rr *bsrr, int *fd);
328 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
330 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
331 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
332 static void process_close(association *assoc, request *reqb);
333 void save_referenceId (request *reqb, Z_ReferenceId *refid);
334 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
337 static FILE *apduf = 0; /* for use in static mode */
338 static statserv_options_block *control_block = 0;
340 /* Chas: Added in from DALI */
341 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
342 /* Chas: End of addition from DALI */
345 * Create and initialize a new association-handle.
346 * channel : iochannel for the current line.
347 * link : communications channel.
348 * Returns: 0 or a new association handle.
350 association *create_association(IOCHAN channel, COMSTACK link)
355 control_block = statserv_getcontrol();
356 if (!(anew = (association *)xmalloc(sizeof(*anew))))
358 anew->client_chan = channel;
359 anew->client_link = link;
360 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
361 !(anew->encode = odr_createmem(ODR_ENCODE)))
363 if (*control_block->apdufile)
368 strcpy(filename, control_block->apdufile);
369 if (!(anew->print = odr_createmem(ODR_PRINT)))
371 if (*control_block->apdufile != '-')
373 strcpy(filename, control_block->apdufile);
374 if (!control_block->dynamic)
378 if (!(apduf = fopen(filename, "w")))
380 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
383 setvbuf(apduf, 0, _IONBF, 0);
389 sprintf(filename + strlen(filename), ".%d", getpid());
390 if (!(f = fopen(filename, "w")))
392 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
395 setvbuf(f, 0, _IONBF, 0);
397 odr_setprint(anew->print, f);
402 anew->input_buffer = 0;
403 anew->input_buffer_len = 0;
405 anew->state = ASSOC_NEW;
406 request_initq(&anew->incoming);
407 request_initq(&anew->outgoing);
408 anew->proto = cs_getproto(link);
413 * Free association and release resources.
415 void destroy_association(association *h)
417 odr_destroy(h->decode);
418 odr_destroy(h->encode);
420 odr_destroy(h->print);
422 xfree(h->input_buffer);
424 bend_close(h->backend);
425 while (request_deq(&h->incoming));
426 while (request_deq(&h->outgoing));
427 request_delq(&h->incoming);
428 request_delq(&h->outgoing);
432 static void do_close_req(association *a, int reason, char *message,
436 Z_Close *cls = zget_Close(a->encode);
438 /* Purge request queue */
439 while (request_deq(&a->incoming));
440 while (request_deq(&a->outgoing));
443 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
444 reason, message ? message : "none");
445 apdu.which = Z_APDU_close;
447 *cls->closeReason = reason;
448 cls->diagnosticInformation = message;
449 process_response(a, req, &apdu);
450 iochan_settimeout(a->client_chan, 60);
454 logf(LOG_DEBUG, "v2 client. No Close PDU");
455 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
457 a->state = ASSOC_DEAD;
460 static void do_close(association *a, int reason, char *message)
462 do_close_req (a, reason, message, request_get(&a->outgoing));
466 * This is where PDUs from the client are read and the further
467 * processing is initiated. Flow of control moves down through the
468 * various process_* functions below, until the encoded result comes back up
469 * to the output handler in here.
471 * h : the I/O channel that has an outstanding event.
472 * event : the current outstanding event.
474 void ir_session(IOCHAN h, int event)
477 association *assoc = (association *)iochan_getdata(h);
478 COMSTACK conn = assoc->client_link;
481 assert(h && conn && assoc);
482 if (event == EVENT_TIMEOUT)
484 if (assoc->state != ASSOC_UP)
486 logf(LOG_LOG, "Final timeout - closing connection.");
488 destroy_association(assoc);
493 logf(LOG_LOG, "Session idle too long. Sending close.");
494 do_close(assoc, Z_Close_lackOfActivity, 0);
498 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
500 if (event & EVENT_INPUT)
502 logf(LOG_DEBUG, "ir_session (input)");
503 assert(assoc && conn);
504 /* We aren't speaking to this fellow */
505 if (assoc->state == ASSOC_DEAD)
507 logf(LOG_LOG, "Closed connection after reject");
509 destroy_association(assoc);
513 if ((res = cs_get(conn, &assoc->input_buffer,
514 &assoc->input_buffer_len)) <= 0)
516 logf(LOG_LOG, "Connection closed by client");
518 destroy_association(assoc);
522 else if (res == 1) /* incomplete read - wait for more */
524 if (cs_more(conn)) /* more stuff - call us again later, please */
525 iochan_setevent(h, EVENT_INPUT);
527 /* we got a complete PDU. Let's decode it */
528 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
529 req = request_get(&assoc->incoming); /* get a new request structure */
530 odr_reset(assoc->decode);
531 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
532 if (!z_APDU(assoc->decode, &req->request, 0))
534 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
535 odr_errmsg(odr_geterror(assoc->decode)),
536 odr_offset(assoc->decode));
537 logf(LOG_LOG, "PDU dump:");
538 odr_dumpBER(log_file(), assoc->input_buffer, res);
539 do_close(assoc, Z_Close_protocolError, "Malformed package");
542 req->request_mem = odr_extract_mem(assoc->decode);
543 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
545 logf(LOG_WARN, "ODR print error: %s",
546 odr_errmsg(odr_geterror(assoc->print)));
547 odr_reset(assoc->print);
549 request_enq(&assoc->incoming, req);
552 /* can we do something yet? */
553 req = request_head(&assoc->incoming);
554 if (req->state == REQUEST_IDLE)
556 request_deq(&assoc->incoming);
557 if (process_request(assoc, req) < 0)
558 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
562 if (event & EVENT_OUTPUT)
564 request *req = request_head(&assoc->outgoing);
566 logf(LOG_DEBUG, "ir_session (output)");
567 req->state = REQUEST_PENDING;
568 switch (res = cs_put(conn, req->response, req->len_response))
571 logf(LOG_LOG, "Connection closed by client");
573 destroy_association(assoc);
576 case 0: /* all sent - release the request structure */
577 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
578 nmem_destroy(req->request_mem);
579 request_deq(&assoc->outgoing);
580 request_release(req);
581 if (!request_head(&assoc->outgoing))
582 iochan_clearflag(h, EVENT_OUTPUT);
584 /* value of 1 -- partial send -- is simply ignored */
587 if (event & EVENT_EXCEPT)
589 logf(LOG_DEBUG, "ir_session (exception)");
591 destroy_association(assoc);
597 * Initiate request processing.
599 static int process_request(association *assoc, request *req)
605 assert(req && req->state == REQUEST_IDLE);
606 switch (req->request->which)
608 case Z_APDU_initRequest:
609 res = process_initRequest(assoc, req); break;
610 case Z_APDU_searchRequest:
611 res = process_searchRequest(assoc, req, &fd); break;
612 case Z_APDU_presentRequest:
613 res = process_presentRequest(assoc, req, &fd); break;
614 case Z_APDU_scanRequest:
615 res = process_scanRequest(assoc, req, &fd); break;
616 case Z_APDU_extendedServicesRequest:
617 if (assoc->bend_esrequest)
618 res = process_ESRequest(assoc, req, &fd);
621 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
625 case Z_APDU_sortRequest:
626 if (assoc->bend_sort)
627 res = process_sortRequest(assoc, req, &fd);
630 logf(LOG_WARN, "Cannot handle SORT APDU");
635 process_close(assoc, req); return 0;
636 case Z_APDU_deleteResultSetRequest:
637 if (assoc->bend_delete)
638 res = process_deleteRequest(assoc, req, &fd);
641 logf (LOG_WARN, "Cannot handle Delete APDU");
646 logf(LOG_WARN, "Bad APDU received");
651 logf(LOG_DEBUG, " result immediately available");
652 retval = process_response(assoc, req, res);
656 logf(LOG_DEBUG, " result unavailble");
659 else /* no result yet - one will be provided later */
663 /* Set up an I/O handler for the fd supplied by the backend */
665 logf(LOG_DEBUG, " establishing handler for result");
666 req->state = REQUEST_PENDING;
667 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
669 iochan_setdata(chan, assoc);
676 * Handle message from the backend.
678 void backend_response(IOCHAN i, int event)
680 association *assoc = (association *)iochan_getdata(i);
681 request *req = request_head(&assoc->incoming);
685 logf(LOG_DEBUG, "backend_response");
686 assert(assoc && req && req->state != REQUEST_IDLE);
687 /* determine what it is we're waiting for */
688 switch (req->request->which)
690 case Z_APDU_searchRequest:
691 res = response_searchRequest(assoc, req, 0, &fd); break;
693 case Z_APDU_presentRequest:
694 res = response_presentRequest(assoc, req, 0, &fd); break;
695 case Z_APDU_scanRequest:
696 res = response_scanRequest(assoc, req, 0, &fd); break;
699 logf(LOG_WARN, "Serious programmer's lapse or bug");
702 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
704 logf(LOG_LOG, "Fatal error when talking to backend");
705 do_close(assoc, Z_Close_systemProblem, 0);
709 else if (!res) /* no result yet - try again later */
711 logf(LOG_DEBUG, " no result yet");
712 iochan_setfd(i, fd); /* in case fd has changed */
717 * Encode response, and transfer the request structure to the outgoing queue.
719 static int process_response(association *assoc, request *req, Z_APDU *res)
721 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
722 if (!z_APDU(assoc->encode, &res, 0))
724 logf(LOG_WARN, "ODR error when encoding response: %s",
725 odr_errmsg(odr_geterror(assoc->decode)));
726 odr_reset(assoc->encode);
729 req->response = odr_getbuf(assoc->encode, &req->len_response,
730 &req->size_response);
731 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
732 if (assoc->print && !z_APDU(assoc->print, &res, 0))
734 logf(LOG_WARN, "ODR print error: %s",
735 odr_errmsg(odr_geterror(assoc->print)));
736 odr_reset(assoc->print);
738 odr_reset(assoc->encode);
739 req->state = REQUEST_IDLE;
740 request_enq(&assoc->outgoing, req);
741 /* turn the work over to the ir_session handler */
742 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
743 /* Is there more work to be done? give that to the input handler too */
745 if (request_head(&assoc->incoming))
747 logf (LOG_DEBUG, "more work to be done");
748 iochan_setevent(assoc->client_chan, EVENT_WORK);
755 * Handle init request.
756 * At the moment, we don't check the options
757 * anywhere else in the code - we just try not to do anything that would
758 * break a naive client. We'll toss 'em into the association block when
759 * we need them there.
761 static Z_APDU *process_initRequest(association *assoc, request *reqb)
763 Z_InitRequest *req = reqb->request->u.initRequest;
764 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
765 Z_InitResponse *resp = apdu->u.initResponse;
766 bend_initrequest binitreq;
767 bend_initresult *binitres;
770 logf(LOG_LOG, "Got initRequest");
771 if (req->implementationId)
772 logf(LOG_LOG, "Id: %s", req->implementationId);
773 if (req->implementationName)
774 logf(LOG_LOG, "Name: %s", req->implementationName);
775 if (req->implementationVersion)
776 logf(LOG_LOG, "Version: %s", req->implementationVersion);
778 binitreq.stream = assoc->encode;
779 binitreq.configname = "default-config";
780 binitreq.auth = req->idAuthentication;
781 binitreq.bend_sort = NULL;
782 binitreq.bend_search = NULL;
783 binitreq.bend_present = NULL;
784 binitreq.bend_esrequest = NULL;
785 binitreq.bend_delete = NULL;
786 if (!(binitres = bend_init(&binitreq)))
788 logf(LOG_WARN, "Bad response from backend.");
792 assoc->backend = binitres->handle;
793 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
794 logf (LOG_DEBUG, "Sort handler installed");
795 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
796 logf (LOG_DEBUG, "Search handler installed");
797 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
798 logf (LOG_DEBUG, "Present handler installed");
799 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
800 logf (LOG_DEBUG, "ESRequest handler installed");
801 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
802 logf (LOG_DEBUG, "Delete handler installed");
804 resp->referenceId = req->referenceId;
806 /* let's tell the client what we can do */
807 if (ODR_MASK_GET(req->options, Z_Options_search))
809 ODR_MASK_SET(resp->options, Z_Options_search);
810 strcat(options, "srch");
812 if (ODR_MASK_GET(req->options, Z_Options_present))
814 ODR_MASK_SET(resp->options, Z_Options_present);
815 strcat(options, " prst");
817 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
819 ODR_MASK_SET(resp->options, Z_Options_delSet);
820 strcat(options, " del");
822 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
823 binitreq.bend_esrequest)
825 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
826 strcat (options, " extendedServices");
828 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
830 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
831 strcat(options, " namedresults");
833 if (ODR_MASK_GET(req->options, Z_Options_scan))
835 ODR_MASK_SET(resp->options, Z_Options_scan);
836 strcat(options, " scan");
838 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
840 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
841 strcat(options, " concurop");
843 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
845 ODR_MASK_SET(resp->options, Z_Options_sort);
846 strcat(options, " sort");
848 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
850 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
851 assoc->version = 2; /* 1 & 2 are equivalent */
853 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
855 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
858 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
860 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
863 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
864 assoc->maximumRecordSize = *req->maximumRecordSize;
865 if (assoc->maximumRecordSize > control_block->maxrecordsize)
866 assoc->maximumRecordSize = control_block->maxrecordsize;
867 assoc->preferredMessageSize = *req->preferredMessageSize;
868 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
869 assoc->preferredMessageSize = assoc->maximumRecordSize;
870 resp->preferredMessageSize = &assoc->preferredMessageSize;
871 resp->maximumRecordSize = &assoc->maximumRecordSize;
872 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
873 if (binitres->errcode)
875 logf(LOG_LOG, "Connection rejected by backend.");
877 assoc->state = ASSOC_DEAD;
880 assoc->state = ASSOC_UP;
885 * These functions should be merged.
888 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
891 dr->which = Z_DefaultDiagFormat_v2Addinfo;
892 dr->u.v2Addinfo = addinfo ? addinfo : "";
894 dr->which = Z_DiagForm_v2AddInfo;
895 dr->addinfo = addinfo ? addinfo : "";
900 * nonsurrogate diagnostic record.
902 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
905 Z_Records *rec = (Z_Records *)
906 odr_malloc (assoc->encode, sizeof(*rec));
909 odr_malloc (assoc->encode, sizeof(*err));
910 Z_DiagRec *drec = (Z_DiagRec *)
911 odr_malloc (assoc->encode, sizeof(*drec));
912 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
913 odr_malloc (assoc->encode, sizeof(*dr));
915 bib1.proto = assoc->proto;
916 bib1.oclass = CLASS_DIAGSET;
917 bib1.value = VAL_BIB1;
919 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
922 rec->which = Z_Records_NSD;
924 rec->u.nonSurrogateDiagnostic = dr;
927 rec->u.nonSurrogateDiagnostic = drec;
928 drec->which = Z_DiagRec_defaultFormat;
929 drec->u.defaultFormat = dr;
931 rec->u.nonSurrogateDiagnostic = dr;
934 dr->diagnosticSetId = odr_oiddup (assoc->encode,
935 oid_ent_to_oid(&bib1, oid));
937 set_addinfo (dr, addinfo);
942 * surrogate diagnostic.
944 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
945 int error, char *addinfo)
948 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
949 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
951 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
952 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
954 bib1.proto = assoc->proto;
955 bib1.oclass = CLASS_DIAGSET;
956 bib1.value = VAL_BIB1;
958 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
960 rec->databaseName = dbname;
961 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
962 rec->u.surrogateDiagnostic = drec;
963 drec->which = Z_DiagRec_defaultFormat;
964 drec->u.defaultFormat = dr;
965 dr->diagnosticSetId = odr_oiddup (assoc->encode,
966 oid_ent_to_oid(&bib1, oid));
968 set_addinfo (dr, addinfo);
974 * multiple nonsurrogate diagnostics.
976 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
979 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
980 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
982 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
983 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
984 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
986 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
987 bib1.proto = assoc->proto;
988 bib1.oclass = CLASS_DIAGSET;
989 bib1.value = VAL_BIB1;
992 recs->num_diagRecs = 1;
993 recs->diagRecs = recp;
995 drec->which = Z_DiagRec_defaultFormat;
996 drec->u.defaultFormat = rec;
998 rec->diagnosticSetId = odr_oiddup (assoc->encode,
999 oid_ent_to_oid(&bib1, oid));
1000 rec->condition = err;
1003 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1004 rec->u.v2Addinfo = addinfo ? addinfo : "";
1006 rec->which = Z_DiagForm_v2AddInfo;
1007 rec->addinfo = addinfo ? addinfo : "";
1012 static Z_Records *pack_records(association *a, char *setname, int start,
1013 int *num, Z_RecordComposition *comp,
1014 int *next, int *pres, oid_value format)
1017 int recno, total_length = 0, toget = *num, dumped_records = 0;
1018 Z_Records *records =
1019 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1020 Z_NamePlusRecordList *reclist =
1021 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1022 Z_NamePlusRecord **list =
1023 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1026 records->which = Z_Records_DBOSD;
1027 records->u.databaseOrSurDiagnostics = reclist;
1028 reclist->num_records = 0;
1029 reclist->records = list;
1030 *pres = Z_PRES_SUCCESS;
1034 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1035 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1036 a->maximumRecordSize);
1037 for (recno = start; reclist->num_records < toget; recno++)
1039 bend_fetchrequest freq;
1040 bend_fetchresult *fres;
1041 Z_NamePlusRecord *thisrec;
1042 Z_DatabaseRecord *thisext;
1043 int this_length = 0;
1046 * we get the number of bytes allocated on the stream before any
1047 * allocation done by the backend - this should give us a reasonable
1048 * idea of the total size of the data so far.
1050 total_length = odr_total(a->encode) - dumped_records;
1051 freq.setname = setname;
1052 freq.number = recno;
1054 freq.format = format;
1055 freq.stream = a->encode;
1056 freq.surrogate_flag = 0;
1057 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1059 *pres = Z_PRES_FAILURE;
1060 return diagrec(a, 2, "Backend interface problem");
1062 /* backend should be able to signal whether error is system-wide
1063 or only pertaining to current record */
1066 if (!freq.surrogate_flag)
1068 *pres = Z_PRES_FAILURE;
1069 return diagrec(a, fres->errcode, fres->errstring);
1071 reclist->records[reclist->num_records] =
1072 surrogatediagrec(a, fres->basename, fres->errcode,
1074 reclist->num_records++;
1075 *next = fres->last_in_set ? 0 : recno + 1;
1079 this_length = fres->len;
1081 this_length = odr_total(a->encode) - total_length;
1082 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1083 this_length, total_length);
1084 if (this_length + total_length > a->preferredMessageSize)
1086 /* record is small enough, really */
1087 if (this_length <= a->preferredMessageSize)
1089 logf(LOG_DEBUG, " Dropped last normal-sized record");
1090 *pres = Z_PRES_PARTIAL_2;
1093 /* record can only be fetched by itself */
1094 if (this_length < a->maximumRecordSize)
1096 logf(LOG_DEBUG, " Record > prefmsgsz");
1099 logf(LOG_DEBUG, " Dropped it");
1100 reclist->records[reclist->num_records] =
1101 surrogatediagrec(a, fres->basename, 16, 0);
1102 reclist->num_records++;
1103 *next = fres->last_in_set ? 0 : recno + 1;
1104 dumped_records += this_length;
1108 else /* too big entirely */
1110 logf(LOG_DEBUG, "Record > maxrcdsz");
1111 reclist->records[reclist->num_records] =
1112 surrogatediagrec(a, fres->basename, 17, 0);
1113 reclist->num_records++;
1114 *next = fres->last_in_set ? 0 : recno + 1;
1115 dumped_records += this_length;
1120 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1122 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1123 strlen(fres->basename) + 1)))
1125 strcpy(thisrec->databaseName, fres->basename);
1126 thisrec->which = Z_NamePlusRecord_databaseRecord;
1127 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1128 sizeof(Z_DatabaseRecord))))
1130 recform.proto = a->proto;
1131 recform.oclass = CLASS_RECSYN;
1132 recform.value = fres->format;
1133 thisext->direct_reference = odr_oiddup(a->encode,
1134 oid_ent_to_oid(&recform, oid));
1135 thisext->indirect_reference = 0;
1136 thisext->descriptor = 0;
1137 if (fres->len < 0) /* Structured data */
1139 switch (fres->format)
1141 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1142 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1143 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1145 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1146 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1149 logf(LOG_FATAL, "Unknown structured format from backend.");
1154 * We cheat on the pointers here. Obviously, the record field
1155 * of the backend-fetch structure should have been a union for
1156 * correctness, but we're stuck with this for backwards
1159 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1161 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1164 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1166 memcpy(sutrs, fres->record, fres->len);
1167 sutrs[fres->len] = '\0';
1169 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1171 thisext->which = Z_External_sutrs;
1172 thisext->u.sutrs = sutrs;
1173 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1174 sutrs->len = sutrs->size = fres->len;
1175 memcpy(sutrs->buf, fres->record, fres->len);
1178 else /* octet-aligned record. */
1180 thisext->which = Z_External_octet;
1181 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1184 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1187 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1188 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1191 reclist->records[reclist->num_records] = thisrec;
1192 reclist->num_records++;
1193 *next = fres->last_in_set ? 0 : recno + 1;
1195 *num = reclist->num_records;
1199 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1202 Z_SearchRequest *req = reqb->request->u.searchRequest;
1203 bend_search_rr *bsrr =
1204 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1206 logf(LOG_LOG, "Got SearchRequest.");
1207 save_referenceId (reqb, req->referenceId);
1208 /* store ref id in request */
1210 bsrr->request = reqb;
1211 bsrr->association = assoc;
1213 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1214 if (req->databaseNames)
1217 for (i = 0; i < req->num_databaseNames; i++)
1218 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1220 switch (req->query->which)
1222 case Z_Query_type_1: case Z_Query_type_101:
1223 log_rpn_query (req->query->u.type_1);
1225 if (assoc->bend_search)
1227 bsrr->setname = req->resultSetName;
1228 bsrr->replace_set = *req->replaceIndicator;
1229 bsrr->num_bases = req->num_databaseNames;
1230 bsrr->basenames = req->databaseNames;
1231 bsrr->query = req->query;
1232 bsrr->stream = assoc->encode;
1233 bsrr->decode = assoc->decode;
1236 bsrr->errstring = NULL;
1237 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1238 (assoc->backend, bsrr);
1244 bend_searchrequest bsrq;
1245 bend_searchresult *bsrt;
1247 bsrq.setname = req->resultSetName;
1248 bsrq.replace_set = *req->replaceIndicator;
1249 bsrq.num_bases = req->num_databaseNames;
1250 bsrq.basenames = req->databaseNames;
1251 bsrq.query = req->query;
1252 bsrq.stream = assoc->encode;
1253 bsrq.decode = assoc->decode;
1254 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1256 bsrr->hits = bsrt->hits;
1257 bsrr->errcode = bsrt->errcode;
1258 bsrr->errstring = bsrt->errstring;
1260 return response_searchRequest(assoc, reqb, bsrr, fd);
1263 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1266 * Prepare a searchresponse based on the backend results. We probably want
1267 * to look at making the fetching of records nonblocking as well, but
1268 * so far, we'll keep things simple.
1269 * If bsrt is null, that means we're called in response to a communications
1270 * event, and we'll have to get the response for ourselves.
1272 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1273 bend_search_rr *bsrt, int *fd)
1275 Z_SearchRequest *req = reqb->request->u.searchRequest;
1276 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1277 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1278 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1279 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1280 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1281 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1288 apdu->which = Z_APDU_searchResponse;
1289 apdu->u.searchResponse = resp;
1290 resp->referenceId = req->referenceId;
1291 resp->additionalSearchInfo = 0;
1292 resp->otherInfo = 0;
1294 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1296 logf(LOG_FATAL, "Bad result from backend");
1299 else if (bsrt->errcode)
1301 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1302 resp->resultCount = nulint;
1303 resp->numberOfRecordsReturned = nulint;
1304 resp->nextResultSetPosition = nulint;
1305 resp->searchStatus = nulint;
1306 resp->resultSetStatus = none;
1307 resp->presentStatus = 0;
1311 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1312 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1313 Z_RecordComposition comp, *compp = 0;
1318 resp->resultCount = &bsrt->hits;
1320 comp.which = Z_RecordComp_simple;
1321 /* how many records does the user agent want, then? */
1322 if (bsrt->hits <= *req->smallSetUpperBound)
1324 *toget = bsrt->hits;
1325 if ((comp.u.simple = req->smallSetElementSetNames))
1328 else if (bsrt->hits < *req->largeSetLowerBound)
1330 *toget = *req->mediumSetPresentNumber;
1331 if (*toget > bsrt->hits)
1332 *toget = bsrt->hits;
1333 if ((comp.u.simple = req->mediumSetElementSetNames))
1339 if (*toget && !resp->records)
1344 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1345 prefformat->oclass != CLASS_RECSYN)
1348 form = prefformat->value;
1349 resp->records = pack_records(assoc, req->resultSetName, 1,
1350 toget, compp, next, presst, form);
1353 resp->numberOfRecordsReturned = toget;
1354 resp->nextResultSetPosition = next;
1355 resp->searchStatus = sr;
1356 resp->resultSetStatus = 0;
1357 resp->presentStatus = presst;
1361 if (*resp->resultCount)
1363 resp->numberOfRecordsReturned = nulint;
1364 resp->nextResultSetPosition = next;
1365 resp->searchStatus = sr;
1366 resp->resultSetStatus = 0;
1367 resp->presentStatus = 0;
1374 * Maybe we got a little over-friendly when we designed bend_fetch to
1375 * get only one record at a time. Some backends can optimise multiple-record
1376 * fetches, and at any rate, there is some overhead involved in
1377 * all that selecting and hopping around. Problem is, of course, that the
1378 * frontend can't know ahead of time how many records it'll need to
1379 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1380 * is downright lousy as a bulk data transfer protocol.
1382 * To start with, we'll do the fetching of records from the backend
1383 * in one operation: To save some trips in and out of the event-handler,
1384 * and to simplify the interface to pack_records. At any rate, asynch
1385 * operation is more fun in operations that have an unpredictable execution
1386 * speed - which is normally more true for search than for present.
1388 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1391 Z_PresentRequest *req = reqb->request->u.presentRequest;
1395 Z_PresentResponse *resp;
1400 logf(LOG_LOG, "Got PresentRequest.");
1402 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1403 prefformat->oclass != CLASS_RECSYN)
1406 form = prefformat->value;
1407 if (assoc->bend_present)
1409 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1410 bprr->setname = req->resultSetId;
1411 bprr->start = *req->resultSetStartPoint;
1412 bprr->number = *req->numberOfRecordsRequested;
1413 bprr->format = form;
1414 bprr->comp = req->recordComposition;
1415 bprr->stream = assoc->encode;
1416 bprr->request = reqb;
1417 bprr->association = assoc;
1419 bprr->errstring = NULL;
1420 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1425 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1426 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1427 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1428 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1429 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1432 *num = *req->numberOfRecordsRequested;
1434 apdu->which = Z_APDU_presentResponse;
1435 apdu->u.presentResponse = resp;
1436 resp->referenceId = req->referenceId;
1437 resp->otherInfo = 0;
1440 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1441 num, req->recordComposition, next, presst, form);
1444 resp->numberOfRecordsReturned = num;
1445 resp->presentStatus = presst;
1446 resp->nextResultSetPosition = next;
1452 * Scan was implemented rather in a hurry, and with support for only the basic
1453 * elements of the service in the backend API. Suggestions are welcome.
1455 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1457 Z_ScanRequest *req = reqb->request->u.scanRequest;
1458 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1459 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1460 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1461 int *numberOfEntriesReturned =
1462 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1463 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1464 Z_DiagRecs *diagrecs_p = NULL;
1466 bend_scanrequest srq;
1467 bend_scanresult *srs;
1470 logf(LOG_LOG, "Got ScanRequest");
1471 *scanStatus = Z_Scan_failure;
1472 *numberOfEntriesReturned = 0;
1474 apdu->which = Z_APDU_scanResponse;
1475 apdu->u.scanResponse = res;
1476 res->referenceId = req->referenceId;
1478 res->scanStatus = scanStatus;
1479 res->numberOfEntriesReturned = numberOfEntriesReturned;
1480 res->positionOfTerm = 0;
1481 res->entries = ents;
1482 ents->num_entries = 0;
1483 ents->entries = NULL;
1484 ents->num_nonsurrogateDiagnostics = 0;
1485 ents->nonsurrogateDiagnostics = NULL;
1486 res->attributeSet = 0;
1489 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1490 attent->oclass != CLASS_ATTSET
1491 || attent->value != VAL_BIB1))
1492 diagrecs_p = diagrecs(assoc, 121, 0);
1493 else if (req->stepSize && *req->stepSize > 0)
1494 diagrecs_p = diagrecs(assoc, 205, 0);
1497 if (req->databaseNames)
1500 for (i = 0; i < req->num_databaseNames; i++)
1501 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1503 srq.num_bases = req->num_databaseNames;
1504 srq.basenames = req->databaseNames;
1505 srq.num_entries = *req->numberOfTermsRequested;
1506 srq.term = req->termListAndStartPoint;
1507 srq.stream = assoc->encode;
1508 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1509 attset->oclass != CLASS_RECSYN)
1510 srq.attributeset = VAL_NONE;
1512 srq.attributeset = attset->value;
1513 log_scan_term (req->termListAndStartPoint, attset->value);
1514 srq.term_position = req->preferredPositionInResponse ?
1515 *req->preferredPositionInResponse : 1;
1516 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1517 diagrecs_p = diagrecs(assoc, 2, 0);
1518 else if (srs->errcode)
1519 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1523 Z_Entry **tab = (Z_Entry **)
1524 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1526 if (srs->status == BEND_SCAN_PARTIAL)
1527 *scanStatus = Z_Scan_partial_5;
1529 *scanStatus = Z_Scan_success;
1530 ents->entries = tab;
1531 ents->num_entries = srs->num_entries;
1532 res->numberOfEntriesReturned = &ents->num_entries;
1533 res->positionOfTerm = &srs->term_position;
1534 for (i = 0; i < srs->num_entries; i++)
1540 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1541 if (srs->entries[i].occurrences >= 0)
1543 e->which = Z_Entry_termInfo;
1544 e->u.termInfo = t = (Z_TermInfo *)
1545 odr_malloc(assoc->encode, sizeof(*t));
1546 t->suggestedAttributes = 0;
1548 t->alternativeTerm = 0;
1549 t->byAttributes = 0;
1550 t->otherTermInfo = 0;
1551 t->globalOccurrences = &srs->entries[i].occurrences;
1552 t->term = (Z_Term *)
1553 odr_malloc(assoc->encode, sizeof(*t->term));
1554 t->term->which = Z_Term_general;
1555 t->term->u.general = o =
1556 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1557 o->buf = (unsigned char *)
1558 odr_malloc(assoc->encode, o->len = o->size =
1559 strlen(srs->entries[i].term));
1560 memcpy(o->buf, srs->entries[i].term, o->len);
1561 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1562 srs->entries[i].term, srs->entries[i].occurrences);
1566 Z_DiagRecs *drecs = diagrecs (assoc,
1567 srs->entries[i].errcode,
1568 srs->entries[i].errstring);
1569 assert (drecs->num_diagRecs == 1);
1570 e->which = Z_Entry_surrogateDiagnostic;
1571 assert (drecs->diagRecs[0]);
1572 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1579 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1580 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1585 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1588 Z_SortRequest *req = reqb->request->u.sortRequest;
1589 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1590 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1592 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1594 logf(LOG_LOG, "Got SortRequest.");
1597 bsrr->num_input_setnames = req->num_inputResultSetNames;
1598 bsrr->input_setnames = req->inputResultSetNames;
1600 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1601 bsrr->input_setnames = req->inputResultSetNames->strings;
1603 bsrr->output_setname = req->sortedResultSetName;
1604 bsrr->sort_sequence = req->sortSequence;
1605 bsrr->stream = assoc->encode;
1607 bsrr->sort_status = Z_SortStatus_failure;
1609 bsrr->errstring = 0;
1611 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1613 res->referenceId = req->referenceId;
1614 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1615 *res->sortStatus = bsrr->sort_status;
1616 res->resultSetStatus = 0;
1619 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1621 res->diagnostics = dr->diagRecs;
1622 res->num_diagnostics = dr->num_diagRecs;
1624 res->diagnostics = dr;
1630 res->num_diagnostics = 0;
1632 res->diagnostics = 0;
1636 apdu->which = Z_APDU_sortResponse;
1637 apdu->u.sortResponse = res;
1641 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1644 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1645 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1646 odr_malloc (assoc->encode, sizeof(*res));
1647 bend_delete_rr *bdrr = (bend_delete_rr *)
1648 odr_malloc (assoc->encode, sizeof(*bdrr));
1649 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1651 logf(LOG_LOG, "Got DeleteRequest.");
1653 bdrr->num_setnames = req->num_resultSetList;
1654 bdrr->setnames = req->resultSetList;
1655 bdrr->stream = assoc->encode;
1656 bdrr->function = *req->deleteFunction;
1658 ((int (*)(void *, bend_delete_rr *))
1659 (*assoc->bend_delete))(assoc->backend, bdrr);
1661 res->referenceId = req->referenceId;
1663 res->deleteOperationStatus = (int *)
1664 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1665 *res->deleteOperationStatus = bdrr->delete_status;
1667 res->deleteListStatuses = 0;
1668 res->numberNotDeleted = 0;
1669 res->bulkStatuses = 0;
1670 res->deleteMessage = 0;
1673 apdu->which = Z_APDU_deleteResultSetResponse;
1674 apdu->u.deleteResultSetResponse = res;
1678 static void process_close(association *assoc, request *reqb)
1680 Z_Close *req = reqb->request->u.close;
1681 static char *reasons[] =
1688 "securityViolation",
1695 logf(LOG_LOG, "Got Close, reason %s, message %s",
1696 reasons[*req->closeReason], req->diagnosticInformation ?
1697 req->diagnosticInformation : "NULL");
1698 if (assoc->version < 3) /* to make do_force respond with close */
1700 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1704 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1708 reqb->len_refid = refid->len;
1709 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1710 memcpy (reqb->refid, refid->buf, refid->len);
1714 reqb->len_refid = 0;
1719 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1721 process_response (a, req, res);
1724 bend_request bend_request_mk (bend_association a)
1726 request *nreq = request_get (&a->outgoing);
1727 nreq->request_mem = nmem_create ();
1731 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1736 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1737 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1738 id->len = id->size = req->len_refid;
1739 memcpy (id->buf, req->refid, req->len_refid);
1743 void bend_request_destroy (bend_request *req)
1745 nmem_destroy((*req)->request_mem);
1746 request_release(*req);
1750 int bend_backend_respond (bend_association a, bend_request req)
1752 return process_request (a, req);
1755 void bend_request_setdata(bend_request r, void *p)
1760 void *bend_request_getdata(bend_request r)
1762 return r->clientData;
1765 /* Chas: Added in from DALI */
1766 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1768 bend_esrequest_rr esrequest;
1770 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1771 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1773 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1775 logf(LOG_DEBUG,"inside Process esRequest");
1777 esrequest.esr = reqb->request->u.extendedServicesRequest;
1778 esrequest.stream = assoc->encode;
1779 esrequest.errcode = 0;
1780 esrequest.errstring = NULL;
1781 esrequest.request = reqb;
1782 esrequest.association = assoc;
1784 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1787 /* If the response is being delayed, return NULL */
1788 if (esrequest.request == NULL)
1791 resp->referenceId = req->referenceId;
1793 if ( esrequest.errcode == 0 )
1795 /* Backend service indicates request will be processed */
1796 logf(LOG_DEBUG,"Request will be processed...Good !");
1797 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1801 /* Backend indicates error, request will not be processed */
1802 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1803 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1805 /* Do something with the members of bend_extendedservice */
1807 logf(LOG_DEBUG,"Send the result apdu");
1812 /* Chas: End of addition from DALI */