2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.84 1998-11-16 16:02:32 adam
8 * Added loggin utilies, log_rpn_query and log_scan_term. These used
11 * Revision 1.83 1998/11/03 10:09:36 adam
12 * Fixed bug regarding YC.
14 * Revision 1.82 1998/10/20 14:00:30 quinn
17 * Revision 1.81 1998/10/13 16:12:24 adam
18 * Added support for Surrogate Diagnostics for Scan Term entries.
20 * Revision 1.80 1998/09/02 12:41:53 adam
21 * Added decode stream in bend search structures.
23 * Revision 1.79 1998/08/19 16:10:08 adam
24 * Changed som member names of DeleteResultSetRequest/Response.
26 * Revision 1.78 1998/08/03 10:23:55 adam
27 * Fixed bug regarding Options for Sort.
29 * Revision 1.77 1998/07/20 12:38:42 adam
30 * Implemented delete result set service to server API.
32 * Revision 1.76 1998/05/27 16:57:07 adam
33 * Support for surrogate diagnostic records added for bend_fetch.
35 * Revision 1.75 1998/05/18 10:13:07 adam
36 * Fixed call to es_request handler - extra argument was passed.
38 * Revision 1.74 1998/03/31 15:13:20 adam
39 * Development towards compiled ASN.1.
41 * Revision 1.73 1998/03/31 11:07:45 adam
42 * Furhter work on UNIverse resource report.
43 * Added Extended Services handling in frontend server.
45 * Revision 1.72 1998/02/11 11:53:35 adam
46 * Changed code so that it compiles as C++.
48 * Revision 1.71 1998/02/10 11:03:57 adam
49 * Added support for extended handlers in backend server interface.
51 * Revision 1.70 1998/01/29 13:15:35 adam
52 * Implemented sort for the backend interface.
54 * Revision 1.69 1997/09/30 11:48:12 adam
55 * Fixed bug introduced by previous commit.
57 * Revision 1.68 1997/09/29 13:18:59 adam
58 * Added function, oid_ent_to_oid, to replace the function
59 * oid_getoidbyent, which is not thread safe.
61 * Revision 1.67 1997/09/17 12:10:40 adam
64 * Revision 1.66 1997/09/05 15:26:44 adam
65 * Added ODR encode in search and scen bend request structures.
66 * Fixed a few enums that caused trouble with C++.
68 * Revision 1.65 1997/09/01 08:53:01 adam
69 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
70 * moved a separate directory. MSV5.0 project server.dsp created.
71 * As an option, the server can now operate as an NT service.
73 * Revision 1.64 1997/04/30 08:52:11 quinn
76 * Revision 1.63 1996/10/11 11:57:26 quinn
79 * Revision 1.62 1996/07/06 19:58:35 quinn
80 * System headerfiles gathered in yconfig
82 * Revision 1.61 1996/06/10 08:56:16 quinn
85 * Revision 1.60 1996/05/30 11:03:10 quinn
86 * Fixed NextresultSetPosition bug fixed.
88 * Revision 1.59 1996/05/14 09:26:46 quinn
89 * Added attribute set to scan backend
91 * Revision 1.58 1996/02/20 12:53:04 quinn
94 * Revision 1.57 1996/01/02 08:57:47 quinn
95 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
97 * Revision 1.56 1995/12/14 11:09:57 quinn
100 * Revision 1.55 1995/11/08 17:41:37 quinn
103 * Revision 1.54 1995/11/08 15:11:29 quinn
104 * Log of close transmit.
106 * Revision 1.53 1995/11/01 13:54:58 quinn
109 * Revision 1.52 1995/11/01 12:19:13 quinn
110 * Second attempt to fix same bug.
112 * Revision 1.50 1995/10/25 16:58:32 quinn
115 * Revision 1.49 1995/10/16 13:51:53 quinn
116 * Changes to provide Especs to the backend.
118 * Revision 1.48 1995/10/06 08:51:20 quinn
119 * Added Write-buffer.
121 * Revision 1.47 1995/08/29 14:24:16 quinn
122 * Added second half of close-handshake
124 * Revision 1.46 1995/08/29 11:17:58 quinn
125 * Added code to receive close
127 * Revision 1.45 1995/08/21 09:11:00 quinn
128 * Smallish fixes to suppport new formats.
130 * Revision 1.44 1995/08/17 12:45:25 quinn
131 * Fixed minor problems with GRS-1. Added support in c&s.
133 * Revision 1.43 1995/08/15 12:00:31 quinn
136 * Revision 1.42 1995/08/15 11:16:50 quinn
138 * Revision 1.41 1995/08/02 10:23:06 quinn
141 * Revision 1.40 1995/07/31 14:34:26 quinn
142 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
144 * Revision 1.39 1995/06/27 13:21:00 quinn
147 * Revision 1.38 1995/06/19 12:39:11 quinn
148 * Fixed bug in timeout code. Added BER dumper.
150 * Revision 1.37 1995/06/16 13:16:14 quinn
151 * Fixed Defaultdiagformat.
153 * Revision 1.36 1995/06/16 10:31:36 quinn
154 * Added session timeout.
156 * Revision 1.35 1995/06/15 07:45:14 quinn
159 * Revision 1.34 1995/06/14 15:26:46 quinn
160 * *** empty log message ***
162 * Revision 1.33 1995/06/06 14:57:05 quinn
163 * Better diagnostics.
165 * Revision 1.32 1995/06/06 08:41:44 quinn
166 * Better diagnostics.
168 * Revision 1.31 1995/06/06 08:15:37 quinn
171 * Revision 1.30 1995/06/05 10:53:32 quinn
172 * Added a better SCAN.
174 * Revision 1.29 1995/06/01 11:25:03 quinn
177 * Revision 1.28 1995/06/01 11:21:01 quinn
178 * Attempting to fix a bug in pack-records. replaced break with continue
179 * for large records, according to standard.
181 * Revision 1.27 1995/05/29 08:12:06 quinn
184 * Revision 1.26 1995/05/18 13:02:12 quinn
187 * Revision 1.25 1995/05/17 08:42:26 quinn
188 * Transfer auth info to backend. Allow backend to reject init gracefully.
190 * Revision 1.24 1995/05/16 08:51:04 quinn
191 * License, documentation, and memory fixes
193 * Revision 1.23 1995/05/15 13:25:10 quinn
196 * Revision 1.22 1995/05/15 11:56:39 quinn
197 * Asynchronous facilities. Restructuring of seshigh code.
199 * Revision 1.21 1995/05/02 08:53:19 quinn
200 * Trying in vain to fix comm with ISODE
202 * Revision 1.20 1995/04/20 15:13:00 quinn
205 * Revision 1.19 1995/04/18 08:15:34 quinn
206 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
207 * neater. We'll make the same change for decoding one day.
209 * Revision 1.18 1995/04/17 11:28:25 quinn
212 * Revision 1.17 1995/04/10 10:23:36 quinn
213 * Some work to add scan and other things.
215 * Revision 1.16 1995/03/31 09:18:55 quinn
218 * Revision 1.15 1995/03/30 14:03:23 quinn
219 * Added RFC1006 as separate library
221 * Revision 1.14 1995/03/30 12:18:17 quinn
224 * Revision 1.13 1995/03/30 09:09:24 quinn
225 * Added state-handle and some support for asynchronous activities.
227 * Revision 1.12 1995/03/29 15:40:16 quinn
228 * Ongoing work. Statserv is now dynamic by default
230 * Revision 1.11 1995/03/28 09:16:21 quinn
231 * Added record packing to the search request
233 * Revision 1.10 1995/03/27 08:34:24 quinn
234 * Added dynamic server functionality.
235 * Released bindings to session.c (is now redundant)
237 * Revision 1.9 1995/03/22 15:01:26 quinn
238 * Adjusting record packing.
240 * Revision 1.8 1995/03/22 10:13:21 quinn
241 * Working on record packer
243 * Revision 1.7 1995/03/21 15:53:31 quinn
246 * Revision 1.6 1995/03/21 12:30:09 quinn
247 * Beginning to add support for record packing.
249 * Revision 1.5 1995/03/17 10:44:13 quinn
250 * Added catch of null-string in makediagrec
252 * Revision 1.4 1995/03/17 10:18:08 quinn
253 * Added memory management.
255 * Revision 1.3 1995/03/16 17:42:39 quinn
258 * Revision 1.2 1995/03/16 13:29:01 quinn
259 * Partitioned server.
261 * Revision 1.1 1995/03/15 16:02:10 quinn
262 * Modded session.c to seshigh.c
267 * Frontend server logic.
269 * This code receives incoming APDUs, and handles client requests by means
270 * of the backend API.
272 * Some of the code is getting quite involved, compared to simpler servers -
273 * primarily because it is asynchronous both in the communication with
274 * the user and the backend. We think the complexity will pay off in
275 * the form of greater flexibility when more asynchronous facilities
278 * Memory management has become somewhat involved. In the simple case, where
279 * only one PDU is pending at a time, it will simply reuse the same memory,
280 * once it has found its working size. When we enable multiple concurrent
281 * operations, perhaps even with multiple parallel calls to the backend, it
282 * will maintain a pool of buffers for encoding and decoding, trying to
283 * minimize memory allocation/deallocation during normal operation.
285 * TODOs include (and will be done in order of public interest):
287 * Support for EXPLAIN - provide simple meta-database system.
288 * Support for access control.
289 * Support for resource control.
290 * Support for extended services - primarily Item Order.
291 * Rest of Z39.50-1994
306 #include <comstack.h>
313 #include <statserv.h>
317 static int process_request(association *assoc, request *req);
318 void backend_response(IOCHAN i, int event);
319 static int process_response(association *assoc, request *req, Z_APDU *res);
320 static Z_APDU *process_initRequest(association *assoc, request *reqb);
321 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
323 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
324 bend_search_rr *bsrr, int *fd);
325 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
327 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
328 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
329 static void process_close(association *assoc, request *reqb);
330 void save_referenceId (request *reqb, Z_ReferenceId *refid);
331 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
334 static FILE *apduf = 0; /* for use in static mode */
335 static statserv_options_block *control_block = 0;
337 /* Chas: Added in from DALI */
338 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
339 /* Chas: End of addition from DALI */
342 * Create and initialize a new association-handle.
343 * channel : iochannel for the current line.
344 * link : communications channel.
345 * Returns: 0 or a new association handle.
347 association *create_association(IOCHAN channel, COMSTACK link)
352 control_block = statserv_getcontrol();
353 if (!(anew = (association *)xmalloc(sizeof(*anew))))
355 anew->client_chan = channel;
356 anew->client_link = link;
357 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
358 !(anew->encode = odr_createmem(ODR_ENCODE)))
360 if (*control_block->apdufile)
365 strcpy(filename, control_block->apdufile);
366 if (!(anew->print = odr_createmem(ODR_PRINT)))
368 if (*control_block->apdufile != '-')
370 strcpy(filename, control_block->apdufile);
371 if (!control_block->dynamic)
375 if (!(apduf = fopen(filename, "w")))
377 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
380 setvbuf(apduf, 0, _IONBF, 0);
386 sprintf(filename + strlen(filename), ".%d", getpid());
387 if (!(f = fopen(filename, "w")))
389 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
392 setvbuf(f, 0, _IONBF, 0);
394 odr_setprint(anew->print, f);
399 anew->input_buffer = 0;
400 anew->input_buffer_len = 0;
402 anew->state = ASSOC_NEW;
403 request_initq(&anew->incoming);
404 request_initq(&anew->outgoing);
405 anew->proto = cs_getproto(link);
410 * Free association and release resources.
412 void destroy_association(association *h)
414 odr_destroy(h->decode);
415 odr_destroy(h->encode);
417 odr_destroy(h->print);
419 xfree(h->input_buffer);
421 bend_close(h->backend);
422 while (request_deq(&h->incoming));
423 while (request_deq(&h->outgoing));
424 request_delq(&h->incoming);
425 request_delq(&h->outgoing);
429 static void do_close_req(association *a, int reason, char *message,
433 Z_Close *cls = zget_Close(a->encode);
435 /* Purge request queue */
436 while (request_deq(&a->incoming));
437 while (request_deq(&a->outgoing));
440 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
441 reason, message ? message : "none");
442 apdu.which = Z_APDU_close;
444 *cls->closeReason = reason;
445 cls->diagnosticInformation = message;
446 process_response(a, req, &apdu);
447 iochan_settimeout(a->client_chan, 60);
451 logf(LOG_DEBUG, "v2 client. No Close PDU");
452 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
454 a->state = ASSOC_DEAD;
457 static void do_close(association *a, int reason, char *message)
459 do_close_req (a, reason, message, request_get(&a->outgoing));
463 * This is where PDUs from the client are read and the further
464 * processing is initiated. Flow of control moves down through the
465 * various process_* functions below, until the encoded result comes back up
466 * to the output handler in here.
468 * h : the I/O channel that has an outstanding event.
469 * event : the current outstanding event.
471 void ir_session(IOCHAN h, int event)
474 association *assoc = (association *)iochan_getdata(h);
475 COMSTACK conn = assoc->client_link;
478 assert(h && conn && assoc);
479 if (event == EVENT_TIMEOUT)
481 if (assoc->state != ASSOC_UP)
483 logf(LOG_LOG, "Final timeout - closing connection.");
485 destroy_association(assoc);
490 logf(LOG_LOG, "Session idle too long. Sending close.");
491 do_close(assoc, Z_Close_lackOfActivity, 0);
495 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
497 if (event & EVENT_INPUT)
499 logf(LOG_DEBUG, "ir_session (input)");
500 assert(assoc && conn);
501 /* We aren't speaking to this fellow */
502 if (assoc->state == ASSOC_DEAD)
504 logf(LOG_LOG, "Closed connection after reject");
506 destroy_association(assoc);
510 if ((res = cs_get(conn, &assoc->input_buffer,
511 &assoc->input_buffer_len)) <= 0)
513 logf(LOG_LOG, "Connection closed by client");
515 destroy_association(assoc);
519 else if (res == 1) /* incomplete read - wait for more */
521 if (cs_more(conn)) /* more stuff - call us again later, please */
522 iochan_setevent(h, EVENT_INPUT);
524 /* we got a complete PDU. Let's decode it */
525 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
526 req = request_get(&assoc->incoming); /* get a new request structure */
527 odr_reset(assoc->decode);
528 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
529 if (!z_APDU(assoc->decode, &req->request, 0))
531 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
532 odr_errmsg(odr_geterror(assoc->decode)),
533 odr_offset(assoc->decode));
534 logf(LOG_LOG, "PDU dump:");
535 odr_dumpBER(log_file(), assoc->input_buffer, res);
536 do_close(assoc, Z_Close_protocolError, "Malformed package");
539 req->request_mem = odr_extract_mem(assoc->decode);
540 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
542 logf(LOG_WARN, "ODR print error: %s",
543 odr_errmsg(odr_geterror(assoc->print)));
544 odr_reset(assoc->print);
546 request_enq(&assoc->incoming, req);
549 /* can we do something yet? */
550 req = request_head(&assoc->incoming);
551 if (req->state == REQUEST_IDLE)
553 request_deq(&assoc->incoming);
554 if (process_request(assoc, req) < 0)
555 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
559 if (event & EVENT_OUTPUT)
561 request *req = request_head(&assoc->outgoing);
563 logf(LOG_DEBUG, "ir_session (output)");
564 req->state = REQUEST_PENDING;
565 switch (res = cs_put(conn, req->response, req->len_response))
568 logf(LOG_LOG, "Connection closed by client");
570 destroy_association(assoc);
573 case 0: /* all sent - release the request structure */
574 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
575 nmem_destroy(req->request_mem);
576 request_deq(&assoc->outgoing);
577 request_release(req);
578 if (!request_head(&assoc->outgoing))
579 iochan_clearflag(h, EVENT_OUTPUT);
581 /* value of 1 -- partial send -- is simply ignored */
584 if (event & EVENT_EXCEPT)
586 logf(LOG_DEBUG, "ir_session (exception)");
588 destroy_association(assoc);
594 * Initiate request processing.
596 static int process_request(association *assoc, request *req)
602 assert(req && req->state == REQUEST_IDLE);
603 switch (req->request->which)
605 case Z_APDU_initRequest:
606 res = process_initRequest(assoc, req); break;
607 case Z_APDU_searchRequest:
608 res = process_searchRequest(assoc, req, &fd); break;
609 case Z_APDU_presentRequest:
610 res = process_presentRequest(assoc, req, &fd); break;
611 case Z_APDU_scanRequest:
612 res = process_scanRequest(assoc, req, &fd); break;
613 case Z_APDU_extendedServicesRequest:
614 if (assoc->bend_esrequest)
615 res = process_ESRequest(assoc, req, &fd);
618 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
622 case Z_APDU_sortRequest:
623 if (assoc->bend_sort)
624 res = process_sortRequest(assoc, req, &fd);
627 logf(LOG_WARN, "Cannot handle SORT APDU");
632 process_close(assoc, req); return 0;
633 case Z_APDU_deleteResultSetRequest:
634 if (assoc->bend_delete)
635 res = process_deleteRequest(assoc, req, &fd);
638 logf (LOG_WARN, "Cannot handle Delete APDU");
643 logf(LOG_WARN, "Bad APDU received");
648 logf(LOG_DEBUG, " result immediately available");
649 retval = process_response(assoc, req, res);
653 logf(LOG_DEBUG, " result unavailble");
656 else /* no result yet - one will be provided later */
660 /* Set up an I/O handler for the fd supplied by the backend */
662 logf(LOG_DEBUG, " establishing handler for result");
663 req->state = REQUEST_PENDING;
664 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
666 iochan_setdata(chan, assoc);
673 * Handle message from the backend.
675 void backend_response(IOCHAN i, int event)
677 association *assoc = (association *)iochan_getdata(i);
678 request *req = request_head(&assoc->incoming);
682 logf(LOG_DEBUG, "backend_response");
683 assert(assoc && req && req->state != REQUEST_IDLE);
684 /* determine what it is we're waiting for */
685 switch (req->request->which)
687 case Z_APDU_searchRequest:
688 res = response_searchRequest(assoc, req, 0, &fd); break;
690 case Z_APDU_presentRequest:
691 res = response_presentRequest(assoc, req, 0, &fd); break;
692 case Z_APDU_scanRequest:
693 res = response_scanRequest(assoc, req, 0, &fd); break;
696 logf(LOG_WARN, "Serious programmer's lapse or bug");
699 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
701 logf(LOG_LOG, "Fatal error when talking to backend");
702 do_close(assoc, Z_Close_systemProblem, 0);
706 else if (!res) /* no result yet - try again later */
708 logf(LOG_DEBUG, " no result yet");
709 iochan_setfd(i, fd); /* in case fd has changed */
714 * Encode response, and transfer the request structure to the outgoing queue.
716 static int process_response(association *assoc, request *req, Z_APDU *res)
718 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
719 if (!z_APDU(assoc->encode, &res, 0))
721 logf(LOG_WARN, "ODR error when encoding response: %s",
722 odr_errmsg(odr_geterror(assoc->decode)));
723 odr_reset(assoc->encode);
726 req->response = odr_getbuf(assoc->encode, &req->len_response,
727 &req->size_response);
728 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
729 if (assoc->print && !z_APDU(assoc->print, &res, 0))
731 logf(LOG_WARN, "ODR print error: %s",
732 odr_errmsg(odr_geterror(assoc->print)));
733 odr_reset(assoc->print);
735 odr_reset(assoc->encode);
736 req->state = REQUEST_IDLE;
737 request_enq(&assoc->outgoing, req);
738 /* turn the work over to the ir_session handler */
739 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
740 /* Is there more work to be done? give that to the input handler too */
742 if (request_head(&assoc->incoming))
744 logf (LOG_DEBUG, "more work to be done");
745 iochan_setevent(assoc->client_chan, EVENT_WORK);
752 * Handle init request.
753 * At the moment, we don't check the options
754 * anywhere else in the code - we just try not to do anything that would
755 * break a naive client. We'll toss 'em into the association block when
756 * we need them there.
758 static Z_APDU *process_initRequest(association *assoc, request *reqb)
760 Z_InitRequest *req = reqb->request->u.initRequest;
761 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
762 Z_InitResponse *resp = apdu->u.initResponse;
763 bend_initrequest binitreq;
764 bend_initresult *binitres;
767 logf(LOG_LOG, "Got initRequest");
768 if (req->implementationId)
769 logf(LOG_LOG, "Id: %s", req->implementationId);
770 if (req->implementationName)
771 logf(LOG_LOG, "Name: %s", req->implementationName);
772 if (req->implementationVersion)
773 logf(LOG_LOG, "Version: %s", req->implementationVersion);
775 binitreq.stream = assoc->encode;
776 binitreq.configname = "default-config";
777 binitreq.auth = req->idAuthentication;
778 binitreq.bend_sort = NULL;
779 binitreq.bend_search = NULL;
780 binitreq.bend_present = NULL;
781 binitreq.bend_esrequest = NULL;
782 binitreq.bend_delete = NULL;
783 if (!(binitres = bend_init(&binitreq)))
785 logf(LOG_WARN, "Bad response from backend.");
789 assoc->backend = binitres->handle;
790 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
791 logf (LOG_DEBUG, "Sort handler installed");
792 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
793 logf (LOG_DEBUG, "Search handler installed");
794 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
795 logf (LOG_DEBUG, "Present handler installed");
796 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
797 logf (LOG_DEBUG, "ESRequest handler installed");
798 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
799 logf (LOG_DEBUG, "Delete handler installed");
801 resp->referenceId = req->referenceId;
803 /* let's tell the client what we can do */
804 if (ODR_MASK_GET(req->options, Z_Options_search))
806 ODR_MASK_SET(resp->options, Z_Options_search);
807 strcat(options, "srch");
809 if (ODR_MASK_GET(req->options, Z_Options_present))
811 ODR_MASK_SET(resp->options, Z_Options_present);
812 strcat(options, " prst");
814 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
816 ODR_MASK_SET(resp->options, Z_Options_delSet);
817 strcat(options, " del");
819 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
820 binitreq.bend_esrequest)
822 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
823 strcat (options, " extendedServices");
825 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
827 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
828 strcat(options, " namedresults");
830 if (ODR_MASK_GET(req->options, Z_Options_scan))
832 ODR_MASK_SET(resp->options, Z_Options_scan);
833 strcat(options, " scan");
835 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
837 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
838 strcat(options, " concurop");
840 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
842 ODR_MASK_SET(resp->options, Z_Options_sort);
843 strcat(options, " sort");
845 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
847 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
848 assoc->version = 2; /* 1 & 2 are equivalent */
850 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
852 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
855 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
857 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
860 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
861 assoc->maximumRecordSize = *req->maximumRecordSize;
862 if (assoc->maximumRecordSize > control_block->maxrecordsize)
863 assoc->maximumRecordSize = control_block->maxrecordsize;
864 assoc->preferredMessageSize = *req->preferredMessageSize;
865 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
866 assoc->preferredMessageSize = assoc->maximumRecordSize;
867 resp->preferredMessageSize = &assoc->preferredMessageSize;
868 resp->maximumRecordSize = &assoc->maximumRecordSize;
869 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
870 if (binitres->errcode)
872 logf(LOG_LOG, "Connection rejected by backend.");
874 assoc->state = ASSOC_DEAD;
877 assoc->state = ASSOC_UP;
882 * These functions should be merged.
885 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
888 dr->which = Z_DefaultDiagFormat_v2Addinfo;
889 dr->u.v2Addinfo = addinfo ? addinfo : "";
891 dr->which = Z_DiagForm_v2AddInfo;
892 dr->addinfo = addinfo ? addinfo : "";
897 * nonsurrogate diagnostic record.
899 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
902 Z_Records *rec = (Z_Records *)
903 odr_malloc (assoc->encode, sizeof(*rec));
906 odr_malloc (assoc->encode, sizeof(*err));
907 Z_DiagRec *drec = (Z_DiagRec *)
908 odr_malloc (assoc->encode, sizeof(*drec));
909 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
910 odr_malloc (assoc->encode, sizeof(*dr));
912 bib1.proto = assoc->proto;
913 bib1.oclass = CLASS_DIAGSET;
914 bib1.value = VAL_BIB1;
916 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
919 rec->which = Z_Records_NSD;
921 rec->u.nonSurrogateDiagnostic = dr;
924 rec->u.nonSurrogateDiagnostic = drec;
925 drec->which = Z_DiagRec_defaultFormat;
926 drec->u.defaultFormat = dr;
928 rec->u.nonSurrogateDiagnostic = dr;
931 dr->diagnosticSetId = odr_oiddup (assoc->encode,
932 oid_ent_to_oid(&bib1, oid));
934 set_addinfo (dr, addinfo);
939 * surrogate diagnostic.
941 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
942 int error, char *addinfo)
945 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
946 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
948 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
949 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
951 bib1.proto = assoc->proto;
952 bib1.oclass = CLASS_DIAGSET;
953 bib1.value = VAL_BIB1;
955 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
957 rec->databaseName = dbname;
958 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
959 rec->u.surrogateDiagnostic = drec;
960 drec->which = Z_DiagRec_defaultFormat;
961 drec->u.defaultFormat = dr;
962 dr->diagnosticSetId = odr_oiddup (assoc->encode,
963 oid_ent_to_oid(&bib1, oid));
965 set_addinfo (dr, addinfo);
971 * multiple nonsurrogate diagnostics.
973 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
976 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
977 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
979 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
980 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
981 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
983 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
984 bib1.proto = assoc->proto;
985 bib1.oclass = CLASS_DIAGSET;
986 bib1.value = VAL_BIB1;
989 recs->num_diagRecs = 1;
990 recs->diagRecs = recp;
992 drec->which = Z_DiagRec_defaultFormat;
993 drec->u.defaultFormat = rec;
995 rec->diagnosticSetId = odr_oiddup (assoc->encode,
996 oid_ent_to_oid(&bib1, oid));
997 rec->condition = err;
1000 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1001 rec->u.v2Addinfo = addinfo ? addinfo : "";
1003 rec->which = Z_DiagForm_v2AddInfo;
1004 rec->addinfo = addinfo ? addinfo : "";
1009 static Z_Records *pack_records(association *a, char *setname, int start,
1010 int *num, Z_RecordComposition *comp,
1011 int *next, int *pres, oid_value format)
1014 int recno, total_length = 0, toget = *num, dumped_records = 0;
1015 Z_Records *records =
1016 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1017 Z_NamePlusRecordList *reclist =
1018 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1019 Z_NamePlusRecord **list =
1020 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1023 records->which = Z_Records_DBOSD;
1024 records->u.databaseOrSurDiagnostics = reclist;
1025 reclist->num_records = 0;
1026 reclist->records = list;
1027 *pres = Z_PRES_SUCCESS;
1031 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1032 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1033 a->maximumRecordSize);
1034 for (recno = start; reclist->num_records < toget; recno++)
1036 bend_fetchrequest freq;
1037 bend_fetchresult *fres;
1038 Z_NamePlusRecord *thisrec;
1039 Z_DatabaseRecord *thisext;
1040 int this_length = 0;
1043 * we get the number of bytes allocated on the stream before any
1044 * allocation done by the backend - this should give us a reasonable
1045 * idea of the total size of the data so far.
1047 total_length = odr_total(a->encode) - dumped_records;
1048 freq.setname = setname;
1049 freq.number = recno;
1051 freq.format = format;
1052 freq.stream = a->encode;
1053 freq.surrogate_flag = 0;
1054 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1056 *pres = Z_PRES_FAILURE;
1057 return diagrec(a, 2, "Backend interface problem");
1059 /* backend should be able to signal whether error is system-wide
1060 or only pertaining to current record */
1063 if (!freq.surrogate_flag)
1065 *pres = Z_PRES_FAILURE;
1066 return diagrec(a, fres->errcode, fres->errstring);
1068 reclist->records[reclist->num_records] =
1069 surrogatediagrec(a, fres->basename, fres->errcode,
1071 reclist->num_records++;
1072 *next = fres->last_in_set ? 0 : recno + 1;
1076 this_length = fres->len;
1078 this_length = odr_total(a->encode) - total_length;
1079 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1080 this_length, total_length);
1081 if (this_length + total_length > a->preferredMessageSize)
1083 /* record is small enough, really */
1084 if (this_length <= a->preferredMessageSize)
1086 logf(LOG_DEBUG, " Dropped last normal-sized record");
1087 *pres = Z_PRES_PARTIAL_2;
1090 /* record can only be fetched by itself */
1091 if (this_length < a->maximumRecordSize)
1093 logf(LOG_DEBUG, " Record > prefmsgsz");
1096 logf(LOG_DEBUG, " Dropped it");
1097 reclist->records[reclist->num_records] =
1098 surrogatediagrec(a, fres->basename, 16, 0);
1099 reclist->num_records++;
1100 *next = fres->last_in_set ? 0 : recno + 1;
1101 dumped_records += this_length;
1105 else /* too big entirely */
1107 logf(LOG_DEBUG, "Record > maxrcdsz");
1108 reclist->records[reclist->num_records] =
1109 surrogatediagrec(a, fres->basename, 17, 0);
1110 reclist->num_records++;
1111 *next = fres->last_in_set ? 0 : recno + 1;
1112 dumped_records += this_length;
1117 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1119 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1120 strlen(fres->basename) + 1)))
1122 strcpy(thisrec->databaseName, fres->basename);
1123 thisrec->which = Z_NamePlusRecord_databaseRecord;
1124 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1125 sizeof(Z_DatabaseRecord))))
1127 recform.proto = a->proto;
1128 recform.oclass = CLASS_RECSYN;
1129 recform.value = fres->format;
1130 thisext->direct_reference = odr_oiddup(a->encode,
1131 oid_ent_to_oid(&recform, oid));
1132 thisext->indirect_reference = 0;
1133 thisext->descriptor = 0;
1134 if (fres->len < 0) /* Structured data */
1136 switch (fres->format)
1138 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1139 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1140 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1142 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1143 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1146 logf(LOG_FATAL, "Unknown structured format from backend.");
1151 * We cheat on the pointers here. Obviously, the record field
1152 * of the backend-fetch structure should have been a union for
1153 * correctness, but we're stuck with this for backwards
1156 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1158 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1161 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1163 memcpy(sutrs, fres->record, fres->len);
1164 sutrs[fres->len] = '\0';
1166 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1168 thisext->which = Z_External_sutrs;
1169 thisext->u.sutrs = sutrs;
1170 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1171 sutrs->len = sutrs->size = fres->len;
1172 memcpy(sutrs->buf, fres->record, fres->len);
1175 else /* octet-aligned record. */
1177 thisext->which = Z_External_octet;
1178 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1181 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1184 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1185 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1188 reclist->records[reclist->num_records] = thisrec;
1189 reclist->num_records++;
1190 *next = fres->last_in_set ? 0 : recno + 1;
1192 *num = reclist->num_records;
1196 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1199 Z_SearchRequest *req = reqb->request->u.searchRequest;
1200 bend_search_rr *bsrr =
1201 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1203 logf(LOG_LOG, "Got SearchRequest.");
1204 save_referenceId (reqb, req->referenceId);
1205 /* store ref id in request */
1207 bsrr->request = reqb;
1208 bsrr->association = assoc;
1210 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1211 if (req->databaseNames)
1214 for (i = 0; i < req->num_databaseNames; i++)
1215 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1217 switch (req->query->which)
1219 case Z_Query_type_1: case Z_Query_type_101:
1220 log_rpn_query (req->query->u.type_1);
1222 if (assoc->bend_search)
1224 bsrr->setname = req->resultSetName;
1225 bsrr->replace_set = *req->replaceIndicator;
1226 bsrr->num_bases = req->num_databaseNames;
1227 bsrr->basenames = req->databaseNames;
1228 bsrr->query = req->query;
1229 bsrr->stream = assoc->encode;
1230 bsrr->decode = assoc->decode;
1233 bsrr->errstring = NULL;
1234 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1235 (assoc->backend, bsrr);
1241 bend_searchrequest bsrq;
1242 bend_searchresult *bsrt;
1244 bsrq.setname = req->resultSetName;
1245 bsrq.replace_set = *req->replaceIndicator;
1246 bsrq.num_bases = req->num_databaseNames;
1247 bsrq.basenames = req->databaseNames;
1248 bsrq.query = req->query;
1249 bsrq.stream = assoc->encode;
1250 bsrq.decode = assoc->decode;
1251 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1253 bsrr->hits = bsrt->hits;
1254 bsrr->errcode = bsrt->errcode;
1255 bsrr->errstring = bsrt->errstring;
1257 return response_searchRequest(assoc, reqb, bsrr, fd);
1260 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1263 * Prepare a searchresponse based on the backend results. We probably want
1264 * to look at making the fetching of records nonblocking as well, but
1265 * so far, we'll keep things simple.
1266 * If bsrt is null, that means we're called in response to a communications
1267 * event, and we'll have to get the response for ourselves.
1269 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1270 bend_search_rr *bsrt, int *fd)
1272 Z_SearchRequest *req = reqb->request->u.searchRequest;
1273 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1274 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1275 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1276 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1277 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1278 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1285 apdu->which = Z_APDU_searchResponse;
1286 apdu->u.searchResponse = resp;
1287 resp->referenceId = req->referenceId;
1288 resp->additionalSearchInfo = 0;
1289 resp->otherInfo = 0;
1291 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1293 logf(LOG_FATAL, "Bad result from backend");
1296 else if (bsrt->errcode)
1298 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1299 resp->resultCount = nulint;
1300 resp->numberOfRecordsReturned = nulint;
1301 resp->nextResultSetPosition = nulint;
1302 resp->searchStatus = nulint;
1303 resp->resultSetStatus = none;
1304 resp->presentStatus = 0;
1308 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1309 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1310 Z_RecordComposition comp, *compp = 0;
1315 resp->resultCount = &bsrt->hits;
1317 comp.which = Z_RecordComp_simple;
1318 /* how many records does the user agent want, then? */
1319 if (bsrt->hits <= *req->smallSetUpperBound)
1321 *toget = bsrt->hits;
1322 if ((comp.u.simple = req->smallSetElementSetNames))
1325 else if (bsrt->hits < *req->largeSetLowerBound)
1327 *toget = *req->mediumSetPresentNumber;
1328 if (*toget > bsrt->hits)
1329 *toget = bsrt->hits;
1330 if ((comp.u.simple = req->mediumSetElementSetNames))
1336 if (*toget && !resp->records)
1341 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1342 prefformat->oclass != CLASS_RECSYN)
1345 form = prefformat->value;
1346 resp->records = pack_records(assoc, req->resultSetName, 1,
1347 toget, compp, next, presst, form);
1350 resp->numberOfRecordsReturned = toget;
1351 resp->nextResultSetPosition = next;
1352 resp->searchStatus = sr;
1353 resp->resultSetStatus = 0;
1354 resp->presentStatus = presst;
1358 if (*resp->resultCount)
1360 resp->numberOfRecordsReturned = nulint;
1361 resp->nextResultSetPosition = next;
1362 resp->searchStatus = sr;
1363 resp->resultSetStatus = 0;
1364 resp->presentStatus = 0;
1371 * Maybe we got a little over-friendly when we designed bend_fetch to
1372 * get only one record at a time. Some backends can optimise multiple-record
1373 * fetches, and at any rate, there is some overhead involved in
1374 * all that selecting and hopping around. Problem is, of course, that the
1375 * frontend can't know ahead of time how many records it'll need to
1376 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1377 * is downright lousy as a bulk data transfer protocol.
1379 * To start with, we'll do the fetching of records from the backend
1380 * in one operation: To save some trips in and out of the event-handler,
1381 * and to simplify the interface to pack_records. At any rate, asynch
1382 * operation is more fun in operations that have an unpredictable execution
1383 * speed - which is normally more true for search than for present.
1385 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1388 Z_PresentRequest *req = reqb->request->u.presentRequest;
1392 Z_PresentResponse *resp;
1397 logf(LOG_LOG, "Got PresentRequest.");
1399 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1400 prefformat->oclass != CLASS_RECSYN)
1403 form = prefformat->value;
1404 if (assoc->bend_present)
1406 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1407 bprr->setname = req->resultSetId;
1408 bprr->start = *req->resultSetStartPoint;
1409 bprr->number = *req->numberOfRecordsRequested;
1410 bprr->format = form;
1411 bprr->comp = req->recordComposition;
1412 bprr->stream = assoc->encode;
1413 bprr->request = reqb;
1414 bprr->association = assoc;
1416 bprr->errstring = NULL;
1417 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1422 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1423 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1424 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1425 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1426 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1429 *num = *req->numberOfRecordsRequested;
1431 apdu->which = Z_APDU_presentResponse;
1432 apdu->u.presentResponse = resp;
1433 resp->referenceId = req->referenceId;
1434 resp->otherInfo = 0;
1437 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1438 num, req->recordComposition, next, presst, form);
1441 resp->numberOfRecordsReturned = num;
1442 resp->presentStatus = presst;
1443 resp->nextResultSetPosition = next;
1449 * Scan was implemented rather in a hurry, and with support for only the basic
1450 * elements of the service in the backend API. Suggestions are welcome.
1452 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1454 Z_ScanRequest *req = reqb->request->u.scanRequest;
1455 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1456 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1457 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1458 int *numberOfEntriesReturned =
1459 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1460 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1461 Z_DiagRecs *diagrecs_p = NULL;
1463 bend_scanrequest srq;
1464 bend_scanresult *srs;
1467 logf(LOG_LOG, "Got ScanRequest");
1468 *scanStatus = Z_Scan_failure;
1469 *numberOfEntriesReturned = 0;
1471 apdu->which = Z_APDU_scanResponse;
1472 apdu->u.scanResponse = res;
1473 res->referenceId = req->referenceId;
1475 res->scanStatus = scanStatus;
1476 res->numberOfEntriesReturned = numberOfEntriesReturned;
1477 res->positionOfTerm = 0;
1478 res->entries = ents;
1479 ents->num_entries = 0;
1480 ents->entries = NULL;
1481 ents->num_nonsurrogateDiagnostics = 0;
1482 ents->nonsurrogateDiagnostics = NULL;
1483 res->attributeSet = 0;
1486 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1487 attent->oclass != CLASS_ATTSET
1488 || attent->value != VAL_BIB1))
1489 diagrecs_p = diagrecs(assoc, 121, 0);
1490 else if (req->stepSize && *req->stepSize > 0)
1491 diagrecs_p = diagrecs(assoc, 205, 0);
1494 if (req->databaseNames)
1497 for (i = 0; i < req->num_databaseNames; i++)
1498 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1500 log_scan_term (req->termListAndStartPoint, attset->value);
1501 srq.num_bases = req->num_databaseNames;
1502 srq.basenames = req->databaseNames;
1503 srq.num_entries = *req->numberOfTermsRequested;
1504 srq.term = req->termListAndStartPoint;
1505 srq.stream = assoc->encode;
1506 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1507 attset->oclass != CLASS_RECSYN)
1508 srq.attributeset = VAL_NONE;
1510 srq.attributeset = attset->value;
1511 srq.term_position = req->preferredPositionInResponse ?
1512 *req->preferredPositionInResponse : 1;
1513 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1514 diagrecs_p = diagrecs(assoc, 2, 0);
1515 else if (srs->errcode)
1516 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1520 Z_Entry **tab = (Z_Entry **)
1521 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1523 if (srs->status == BEND_SCAN_PARTIAL)
1524 *scanStatus = Z_Scan_partial_5;
1526 *scanStatus = Z_Scan_success;
1527 ents->entries = tab;
1528 ents->num_entries = srs->num_entries;
1529 res->numberOfEntriesReturned = &ents->num_entries;
1530 res->positionOfTerm = &srs->term_position;
1531 for (i = 0; i < srs->num_entries; i++)
1537 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1538 if (srs->entries[i].occurrences >= 0)
1540 e->which = Z_Entry_termInfo;
1541 e->u.termInfo = t = (Z_TermInfo *)
1542 odr_malloc(assoc->encode, sizeof(*t));
1543 t->suggestedAttributes = 0;
1545 t->alternativeTerm = 0;
1546 t->byAttributes = 0;
1547 t->otherTermInfo = 0;
1548 t->globalOccurrences = &srs->entries[i].occurrences;
1549 t->term = (Z_Term *)
1550 odr_malloc(assoc->encode, sizeof(*t->term));
1551 t->term->which = Z_Term_general;
1552 t->term->u.general = o =
1553 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1554 o->buf = (unsigned char *)
1555 odr_malloc(assoc->encode, o->len = o->size =
1556 strlen(srs->entries[i].term));
1557 memcpy(o->buf, srs->entries[i].term, o->len);
1558 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1559 srs->entries[i].term, srs->entries[i].occurrences);
1563 Z_DiagRecs *drecs = diagrecs (assoc,
1564 srs->entries[i].errcode,
1565 srs->entries[i].errstring);
1566 assert (drecs->num_diagRecs == 1);
1567 e->which = Z_Entry_surrogateDiagnostic;
1568 assert (drecs->diagRecs[0]);
1569 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1576 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1577 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1582 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1585 Z_SortRequest *req = reqb->request->u.sortRequest;
1586 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1587 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1589 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1591 logf(LOG_LOG, "Got SortRequest.");
1594 bsrr->num_input_setnames = req->num_inputResultSetNames;
1595 bsrr->input_setnames = req->inputResultSetNames;
1597 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1598 bsrr->input_setnames = req->inputResultSetNames->strings;
1600 bsrr->output_setname = req->sortedResultSetName;
1601 bsrr->sort_sequence = req->sortSequence;
1602 bsrr->stream = assoc->encode;
1604 bsrr->sort_status = Z_SortStatus_failure;
1606 bsrr->errstring = 0;
1608 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1610 res->referenceId = req->referenceId;
1611 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1612 *res->sortStatus = bsrr->sort_status;
1613 res->resultSetStatus = 0;
1616 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1618 res->diagnostics = dr->diagRecs;
1619 res->num_diagnostics = dr->num_diagRecs;
1621 res->diagnostics = dr;
1627 res->num_diagnostics = 0;
1629 res->diagnostics = 0;
1633 apdu->which = Z_APDU_sortResponse;
1634 apdu->u.sortResponse = res;
1638 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1641 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1642 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1643 odr_malloc (assoc->encode, sizeof(*res));
1644 bend_delete_rr *bdrr = (bend_delete_rr *)
1645 odr_malloc (assoc->encode, sizeof(*bdrr));
1646 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1648 logf(LOG_LOG, "Got DeleteRequest.");
1650 bdrr->num_setnames = req->num_resultSetList;
1651 bdrr->setnames = req->resultSetList;
1652 bdrr->stream = assoc->encode;
1653 bdrr->function = *req->deleteFunction;
1655 ((int (*)(void *, bend_delete_rr *))
1656 (*assoc->bend_delete))(assoc->backend, bdrr);
1658 res->referenceId = req->referenceId;
1660 res->deleteOperationStatus = (int *)
1661 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1662 *res->deleteOperationStatus = bdrr->delete_status;
1664 res->deleteListStatuses = 0;
1665 res->numberNotDeleted = 0;
1666 res->bulkStatuses = 0;
1667 res->deleteMessage = 0;
1670 apdu->which = Z_APDU_deleteResultSetResponse;
1671 apdu->u.deleteResultSetResponse = res;
1675 static void process_close(association *assoc, request *reqb)
1677 Z_Close *req = reqb->request->u.close;
1678 static char *reasons[] =
1685 "securityViolation",
1692 logf(LOG_LOG, "Got Close, reason %s, message %s",
1693 reasons[*req->closeReason], req->diagnosticInformation ?
1694 req->diagnosticInformation : "NULL");
1695 if (assoc->version < 3) /* to make do_force respond with close */
1697 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1701 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1705 reqb->len_refid = refid->len;
1706 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1707 memcpy (reqb->refid, refid->buf, refid->len);
1711 reqb->len_refid = 0;
1716 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1718 process_response (a, req, res);
1721 bend_request bend_request_mk (bend_association a)
1723 request *nreq = request_get (&a->outgoing);
1724 nreq->request_mem = nmem_create ();
1728 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1733 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1734 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1735 id->len = id->size = req->len_refid;
1736 memcpy (id->buf, req->refid, req->len_refid);
1740 void bend_request_destroy (bend_request *req)
1742 nmem_destroy((*req)->request_mem);
1743 request_release(*req);
1747 int bend_backend_respond (bend_association a, bend_request req)
1749 return process_request (a, req);
1752 void bend_request_setdata(bend_request r, void *p)
1757 void *bend_request_getdata(bend_request r)
1759 return r->clientData;
1762 /* Chas: Added in from DALI */
1763 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1765 bend_esrequest_rr esrequest;
1767 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1768 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1770 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1772 logf(LOG_DEBUG,"inside Process esRequest");
1774 esrequest.esr = reqb->request->u.extendedServicesRequest;
1775 esrequest.stream = assoc->encode;
1776 esrequest.errcode = 0;
1777 esrequest.errstring = NULL;
1778 esrequest.request = reqb;
1779 esrequest.association = assoc;
1781 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1784 /* If the response is being delayed, return NULL */
1785 if (esrequest.request == NULL)
1788 resp->referenceId = req->referenceId;
1790 if ( esrequest.errcode == 0 )
1792 /* Backend service indicates request will be processed */
1793 logf(LOG_DEBUG,"Request will be processed...Good !");
1794 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1798 /* Backend indicates error, request will not be processed */
1799 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1800 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1802 /* Do something with the members of bend_extendedservice */
1804 logf(LOG_DEBUG,"Send the result apdu");
1809 /* Chas: End of addition from DALI */