2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.73 1998-03-31 11:07:45 adam
8 * Furhter work on UNIverse resource report.
9 * Added Extended Services handling in frontend server.
11 * Revision 1.72 1998/02/11 11:53:35 adam
12 * Changed code so that it compiles as C++.
14 * Revision 1.71 1998/02/10 11:03:57 adam
15 * Added support for extended handlers in backend server interface.
17 * Revision 1.70 1998/01/29 13:15:35 adam
18 * Implemented sort for the backend interface.
20 * Revision 1.69 1997/09/30 11:48:12 adam
21 * Fixed bug introduced by previous commit.
23 * Revision 1.68 1997/09/29 13:18:59 adam
24 * Added function, oid_ent_to_oid, to replace the function
25 * oid_getoidbyent, which is not thread safe.
27 * Revision 1.67 1997/09/17 12:10:40 adam
30 * Revision 1.66 1997/09/05 15:26:44 adam
31 * Added ODR encode in search and scen bend request structures.
32 * Fixed a few enums that caused trouble with C++.
34 * Revision 1.65 1997/09/01 08:53:01 adam
35 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
36 * moved a separate directory. MSV5.0 project server.dsp created.
37 * As an option, the server can now operate as an NT service.
39 * Revision 1.64 1997/04/30 08:52:11 quinn
42 * Revision 1.63 1996/10/11 11:57:26 quinn
45 * Revision 1.62 1996/07/06 19:58:35 quinn
46 * System headerfiles gathered in yconfig
48 * Revision 1.61 1996/06/10 08:56:16 quinn
51 * Revision 1.60 1996/05/30 11:03:10 quinn
52 * Fixed NextresultSetPosition bug fixed.
54 * Revision 1.59 1996/05/14 09:26:46 quinn
55 * Added attribute set to scan backend
57 * Revision 1.58 1996/02/20 12:53:04 quinn
60 * Revision 1.57 1996/01/02 08:57:47 quinn
61 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
63 * Revision 1.56 1995/12/14 11:09:57 quinn
66 * Revision 1.55 1995/11/08 17:41:37 quinn
69 * Revision 1.54 1995/11/08 15:11:29 quinn
70 * Log of close transmit.
72 * Revision 1.53 1995/11/01 13:54:58 quinn
75 * Revision 1.52 1995/11/01 12:19:13 quinn
76 * Second attempt to fix same bug.
78 * Revision 1.50 1995/10/25 16:58:32 quinn
81 * Revision 1.49 1995/10/16 13:51:53 quinn
82 * Changes to provide Especs to the backend.
84 * Revision 1.48 1995/10/06 08:51:20 quinn
87 * Revision 1.47 1995/08/29 14:24:16 quinn
88 * Added second half of close-handshake
90 * Revision 1.46 1995/08/29 11:17:58 quinn
91 * Added code to receive close
93 * Revision 1.45 1995/08/21 09:11:00 quinn
94 * Smallish fixes to suppport new formats.
96 * Revision 1.44 1995/08/17 12:45:25 quinn
97 * Fixed minor problems with GRS-1. Added support in c&s.
99 * Revision 1.43 1995/08/15 12:00:31 quinn
102 * Revision 1.42 1995/08/15 11:16:50 quinn
104 * Revision 1.41 1995/08/02 10:23:06 quinn
107 * Revision 1.40 1995/07/31 14:34:26 quinn
108 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
110 * Revision 1.39 1995/06/27 13:21:00 quinn
113 * Revision 1.38 1995/06/19 12:39:11 quinn
114 * Fixed bug in timeout code. Added BER dumper.
116 * Revision 1.37 1995/06/16 13:16:14 quinn
117 * Fixed Defaultdiagformat.
119 * Revision 1.36 1995/06/16 10:31:36 quinn
120 * Added session timeout.
122 * Revision 1.35 1995/06/15 07:45:14 quinn
125 * Revision 1.34 1995/06/14 15:26:46 quinn
126 * *** empty log message ***
128 * Revision 1.33 1995/06/06 14:57:05 quinn
129 * Better diagnostics.
131 * Revision 1.32 1995/06/06 08:41:44 quinn
132 * Better diagnostics.
134 * Revision 1.31 1995/06/06 08:15:37 quinn
137 * Revision 1.30 1995/06/05 10:53:32 quinn
138 * Added a better SCAN.
140 * Revision 1.29 1995/06/01 11:25:03 quinn
143 * Revision 1.28 1995/06/01 11:21:01 quinn
144 * Attempting to fix a bug in pack-records. replaced break with continue
145 * for large records, according to standard.
147 * Revision 1.27 1995/05/29 08:12:06 quinn
150 * Revision 1.26 1995/05/18 13:02:12 quinn
153 * Revision 1.25 1995/05/17 08:42:26 quinn
154 * Transfer auth info to backend. Allow backend to reject init gracefully.
156 * Revision 1.24 1995/05/16 08:51:04 quinn
157 * License, documentation, and memory fixes
159 * Revision 1.23 1995/05/15 13:25:10 quinn
162 * Revision 1.22 1995/05/15 11:56:39 quinn
163 * Asynchronous facilities. Restructuring of seshigh code.
165 * Revision 1.21 1995/05/02 08:53:19 quinn
166 * Trying in vain to fix comm with ISODE
168 * Revision 1.20 1995/04/20 15:13:00 quinn
171 * Revision 1.19 1995/04/18 08:15:34 quinn
172 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
173 * neater. We'll make the same change for decoding one day.
175 * Revision 1.18 1995/04/17 11:28:25 quinn
178 * Revision 1.17 1995/04/10 10:23:36 quinn
179 * Some work to add scan and other things.
181 * Revision 1.16 1995/03/31 09:18:55 quinn
184 * Revision 1.15 1995/03/30 14:03:23 quinn
185 * Added RFC1006 as separate library
187 * Revision 1.14 1995/03/30 12:18:17 quinn
190 * Revision 1.13 1995/03/30 09:09:24 quinn
191 * Added state-handle and some support for asynchronous activities.
193 * Revision 1.12 1995/03/29 15:40:16 quinn
194 * Ongoing work. Statserv is now dynamic by default
196 * Revision 1.11 1995/03/28 09:16:21 quinn
197 * Added record packing to the search request
199 * Revision 1.10 1995/03/27 08:34:24 quinn
200 * Added dynamic server functionality.
201 * Released bindings to session.c (is now redundant)
203 * Revision 1.9 1995/03/22 15:01:26 quinn
204 * Adjusting record packing.
206 * Revision 1.8 1995/03/22 10:13:21 quinn
207 * Working on record packer
209 * Revision 1.7 1995/03/21 15:53:31 quinn
212 * Revision 1.6 1995/03/21 12:30:09 quinn
213 * Beginning to add support for record packing.
215 * Revision 1.5 1995/03/17 10:44:13 quinn
216 * Added catch of null-string in makediagrec
218 * Revision 1.4 1995/03/17 10:18:08 quinn
219 * Added memory management.
221 * Revision 1.3 1995/03/16 17:42:39 quinn
224 * Revision 1.2 1995/03/16 13:29:01 quinn
225 * Partitioned server.
227 * Revision 1.1 1995/03/15 16:02:10 quinn
228 * Modded session.c to seshigh.c
233 * Frontend server logic.
235 * This code receives incoming APDUs, and handles client requests by means
236 * of the backend API.
238 * Some of the code is getting quite involved, compared to simpler servers -
239 * primarily because it is asynchronous both in the communication with
240 * the user and the backend. We think the complexity will pay off in
241 * the form of greater flexibility when more asynchronous facilities
244 * Memory management has become somewhat involved. In the simple case, where
245 * only one PDU is pending at a time, it will simply reuse the same memory,
246 * once it has found its working size. When we enable multiple concurrent
247 * operations, perhaps even with multiple parallel calls to the backend, it
248 * will maintain a pool of buffers for encoding and decoding, trying to
249 * minimize memory allocation/deallocation during normal operation.
251 * TODOs include (and will be done in order of public interest):
253 * Support for EXPLAIN - provide simple meta-database system.
254 * Support for access control.
255 * Support for resource control.
256 * Support for extended services - primarily Item Order.
257 * Rest of Z39.50-1994
272 #include <comstack.h>
278 #include <statserv.h>
282 static int process_request(association *assoc, request *req);
283 void backend_response(IOCHAN i, int event);
284 static int process_response(association *assoc, request *req, Z_APDU *res);
285 static Z_APDU *process_initRequest(association *assoc, request *reqb);
286 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
288 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
289 bend_search_rr *bsrr, int *fd);
290 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
292 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
293 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
294 static void process_close(association *assoc, request *reqb);
295 void save_referenceId (request *reqb, Z_ReferenceId *refid);
297 static FILE *apduf = 0; /* for use in static mode */
298 static statserv_options_block *control_block = 0;
300 /* Chas: Added in from DALI */
301 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
302 /* Chas: End of addition from DALI */
305 * Create and initialize a new association-handle.
306 * channel : iochannel for the current line.
307 * link : communications channel.
308 * Returns: 0 or a new association handle.
310 association *create_association(IOCHAN channel, COMSTACK link)
315 control_block = statserv_getcontrol();
316 if (!(anew = (association *)xmalloc(sizeof(*anew))))
318 anew->client_chan = channel;
319 anew->client_link = link;
320 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
321 !(anew->encode = odr_createmem(ODR_ENCODE)))
323 if (*control_block->apdufile)
328 strcpy(filename, control_block->apdufile);
329 if (!(anew->print = odr_createmem(ODR_PRINT)))
331 if (*control_block->apdufile != '-')
333 strcpy(filename, control_block->apdufile);
334 if (!control_block->dynamic)
338 if (!(apduf = fopen(filename, "w")))
340 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
343 setvbuf(apduf, 0, _IONBF, 0);
349 sprintf(filename + strlen(filename), ".%d", getpid());
350 if (!(f = fopen(filename, "w")))
352 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
355 setvbuf(f, 0, _IONBF, 0);
357 odr_setprint(anew->print, f);
362 anew->input_buffer = 0;
363 anew->input_buffer_len = 0;
365 anew->state = ASSOC_NEW;
366 request_initq(&anew->incoming);
367 request_initq(&anew->outgoing);
368 anew->proto = cs_getproto(link);
373 * Free association and release resources.
375 void destroy_association(association *h)
377 odr_destroy(h->decode);
378 odr_destroy(h->encode);
380 odr_destroy(h->print);
382 xfree(h->input_buffer);
384 bend_close(h->backend);
385 while (request_deq(&h->incoming));
386 while (request_deq(&h->outgoing));
387 request_delq(&h->incoming);
388 request_delq(&h->outgoing);
392 static void do_close(association *a, int reason, char *message)
395 Z_Close *cls = zget_Close(a->encode);
396 request *req = request_get(&a->outgoing);
398 /* Purge request queue */
399 while (request_deq(&a->incoming));
400 while (request_deq(&a->outgoing));
403 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
404 reason, message ? message : "none");
405 apdu.which = Z_APDU_close;
407 *cls->closeReason = reason;
408 cls->diagnosticInformation = message;
409 process_response(a, req, &apdu);
410 iochan_settimeout(a->client_chan, 60);
414 logf(LOG_DEBUG, "v2 client. No Close PDU");
415 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
417 a->state = ASSOC_DEAD;
421 * This is where PDUs from the client are read and the further
422 * processing is initiated. Flow of control moves down through the
423 * various process_* functions below, until the encoded result comes back up
424 * to the output handler in here.
426 * h : the I/O channel that has an outstanding event.
427 * event : the current outstanding event.
429 void ir_session(IOCHAN h, int event)
432 association *assoc = (association *)iochan_getdata(h);
433 COMSTACK conn = assoc->client_link;
436 assert(h && conn && assoc);
437 if (event == EVENT_TIMEOUT)
439 if (assoc->state != ASSOC_UP)
441 logf(LOG_LOG, "Final timeout - closing connection.");
443 destroy_association(assoc);
448 logf(LOG_LOG, "Session idle too long. Sending close.");
449 do_close(assoc, Z_Close_lackOfActivity, 0);
453 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
455 if (event & EVENT_INPUT)
457 logf(LOG_DEBUG, "ir_session (input)");
458 assert(assoc && conn);
459 /* We aren't speaking to this fellow */
460 if (assoc->state == ASSOC_DEAD)
462 logf(LOG_LOG, "Closed connection after reject");
464 destroy_association(assoc);
468 if ((res = cs_get(conn, &assoc->input_buffer,
469 &assoc->input_buffer_len)) <= 0)
471 logf(LOG_LOG, "Connection closed by client");
473 destroy_association(assoc);
477 else if (res == 1) /* incomplete read - wait for more */
479 if (cs_more(conn)) /* more stuff - call us again later, please */
480 iochan_setevent(h, EVENT_INPUT);
482 /* we got a complete PDU. Let's decode it */
483 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
484 req = request_get(&assoc->incoming); /* get a new request structure */
485 odr_reset(assoc->decode);
486 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
487 if (!z_APDU(assoc->decode, &req->request, 0))
489 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
490 odr_errmsg(odr_geterror(assoc->decode)),
491 odr_offset(assoc->decode));
492 logf(LOG_LOG, "PDU dump:");
493 odr_dumpBER(log_file(), assoc->input_buffer, res);
494 do_close(assoc, Z_Close_protocolError, "Malformed package");
497 req->request_mem = odr_extract_mem(assoc->decode);
498 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
500 logf(LOG_WARN, "ODR print error: %s",
501 odr_errmsg(odr_geterror(assoc->print)));
502 odr_reset(assoc->print);
504 request_enq(&assoc->incoming, req);
507 /* can we do something yet? */
508 req = request_head(&assoc->incoming);
509 if (req->state == REQUEST_IDLE)
511 request_deq(&assoc->incoming);
512 if (process_request(assoc, req) < 0)
513 do_close(assoc, Z_Close_systemProblem, "Unknown error");
516 if (event & EVENT_OUTPUT)
518 request *req = request_head(&assoc->outgoing);
520 logf(LOG_DEBUG, "ir_session (output)");
521 req->state = REQUEST_PENDING;
522 switch (res = cs_put(conn, req->response, req->len_response))
525 logf(LOG_LOG, "Connection closed by client");
527 destroy_association(assoc);
530 case 0: /* all sent - release the request structure */
531 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
532 nmem_destroy(req->request_mem);
533 request_deq(&assoc->outgoing);
534 request_release(req);
535 if (!request_head(&assoc->outgoing))
536 iochan_clearflag(h, EVENT_OUTPUT);
538 /* value of 1 -- partial send -- is simply ignored */
541 if (event & EVENT_EXCEPT)
543 logf(LOG_DEBUG, "ir_session (exception)");
545 destroy_association(assoc);
551 * Initiate request processing.
553 static int process_request(association *assoc, request *req)
559 assert(req && req->state == REQUEST_IDLE);
560 switch (req->request->which)
562 case Z_APDU_initRequest:
563 res = process_initRequest(assoc, req); break;
564 case Z_APDU_searchRequest:
565 res = process_searchRequest(assoc, req, &fd); break;
566 case Z_APDU_presentRequest:
567 res = process_presentRequest(assoc, req, &fd); break;
568 case Z_APDU_scanRequest:
569 res = process_scanRequest(assoc, req, &fd); break;
570 /* Chas: Added in from DALI */
571 case Z_APDU_extendedServicesRequest:
572 if (assoc->bend_esrequest)
573 res = process_ESRequest(assoc, req, &fd);
576 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
579 /* Chas: End of addition from DALI */
581 case Z_APDU_sortRequest:
582 if (assoc->bend_sort)
583 res = process_sortRequest(assoc, req, &fd);
586 logf(LOG_WARN, "Cannot handle SORT APDU");
591 process_close(assoc, req); return 0;
593 logf(LOG_WARN, "Bad APDU received");
598 logf(LOG_DEBUG, " result immediately available");
599 retval = process_response(assoc, req, res);
603 logf(LOG_DEBUG, " result unavailble");
606 else /* no result yet - one will be provided later */
610 /* Set up an I/O handler for the fd supplied by the backend */
612 logf(LOG_DEBUG, " establishing handler for result");
613 req->state = REQUEST_PENDING;
614 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
616 iochan_setdata(chan, assoc);
623 * Handle message from the backend.
625 void backend_response(IOCHAN i, int event)
627 association *assoc = (association *)iochan_getdata(i);
628 request *req = request_head(&assoc->incoming);
632 logf(LOG_DEBUG, "backend_response");
633 assert(assoc && req && req->state != REQUEST_IDLE);
634 /* determine what it is we're waiting for */
635 switch (req->request->which)
637 case Z_APDU_searchRequest:
638 res = response_searchRequest(assoc, req, 0, &fd); break;
640 case Z_APDU_presentRequest:
641 res = response_presentRequest(assoc, req, 0, &fd); break;
642 case Z_APDU_scanRequest:
643 res = response_scanRequest(assoc, req, 0, &fd); break;
646 logf(LOG_WARN, "Serious programmer's lapse or bug");
649 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
651 logf(LOG_LOG, "Fatal error when talking to backend");
652 do_close(assoc, Z_Close_systemProblem, 0);
656 else if (!res) /* no result yet - try again later */
658 logf(LOG_DEBUG, " no result yet");
659 iochan_setfd(i, fd); /* in case fd has changed */
664 * Encode response, and transfer the request structure to the outgoing queue.
666 static int process_response(association *assoc, request *req, Z_APDU *res)
668 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
669 if (!z_APDU(assoc->encode, &res, 0))
671 logf(LOG_WARN, "ODR error when encoding response: %s",
672 odr_errmsg(odr_geterror(assoc->decode)));
673 odr_reset(assoc->encode);
676 req->response = odr_getbuf(assoc->encode, &req->len_response,
677 &req->size_response);
678 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
679 odr_reset(assoc->encode);
680 if (assoc->print && !z_APDU(assoc->print, &res, 0))
682 logf(LOG_WARN, "ODR print error: %s",
683 odr_errmsg(odr_geterror(assoc->print)));
684 odr_reset(assoc->print);
686 req->state = REQUEST_IDLE;
687 request_enq(&assoc->outgoing, req);
688 /* turn the work over to the ir_session handler */
689 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
690 /* Is there more work to be done? give that to the input handler too */
692 if (request_head(&assoc->incoming))
694 logf (LOG_DEBUG, "more work to be done");
695 iochan_setevent(assoc->client_chan, EVENT_WORK);
702 * Handle init request.
703 * At the moment, we don't check the options
704 * anywhere else in the code - we just try not to do anything that would
705 * break a naive client. We'll toss 'em into the association block when
706 * we need them there.
708 static Z_APDU *process_initRequest(association *assoc, request *reqb)
710 Z_InitRequest *req = reqb->request->u.initRequest;
711 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
712 Z_InitResponse *resp = apdu->u.initResponse;
713 bend_initrequest binitreq;
714 bend_initresult *binitres;
717 logf(LOG_LOG, "Got initRequest");
718 if (req->implementationId)
719 logf(LOG_LOG, "Id: %s", req->implementationId);
720 if (req->implementationName)
721 logf(LOG_LOG, "Name: %s", req->implementationName);
722 if (req->implementationVersion)
723 logf(LOG_LOG, "Version: %s", req->implementationVersion);
725 binitreq.stream = assoc->encode;
726 binitreq.configname = "default-config";
727 binitreq.auth = req->idAuthentication;
728 binitreq.bend_sort = NULL;
729 binitreq.bend_search = NULL;
730 binitreq.bend_present = NULL;
731 binitreq.bend_esrequest = NULL;
732 if (!(binitres = bend_init(&binitreq)))
734 logf(LOG_WARN, "Bad response from backend.");
738 assoc->backend = binitres->handle;
739 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
740 logf (LOG_DEBUG, "Sort handler installed");
741 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
742 logf (LOG_DEBUG, "Search handler installed");
743 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
744 logf (LOG_DEBUG, "Present handler installed");
745 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
746 logf (LOG_DEBUG, "ESRequest handler installed");
748 resp->referenceId = req->referenceId;
750 /* let's tell the client what we can do */
751 if (ODR_MASK_GET(req->options, Z_Options_search))
753 ODR_MASK_SET(resp->options, Z_Options_search);
754 strcat(options, "srch");
756 if (ODR_MASK_GET(req->options, Z_Options_present))
758 ODR_MASK_SET(resp->options, Z_Options_present);
759 strcat(options, " prst");
761 if (ODR_MASK_GET(req->options, Z_Options_delSet))
763 ODR_MASK_SET(resp->options, Z_Options_delSet);
764 strcat(options, " del");
766 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
767 binitreq.bend_esrequest)
769 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
770 strcat (options, " extendedServices");
772 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
774 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
775 strcat(options, " namedresults");
777 if (ODR_MASK_GET(req->options, Z_Options_scan))
779 ODR_MASK_SET(resp->options, Z_Options_scan);
780 strcat(options, " scan");
782 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
784 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
785 strcat(options, " concurop");
787 if (ODR_MASK_GET(req->options, Z_Options_sort && binitreq.bend_sort))
789 ODR_MASK_SET(resp->options, Z_Options_sort);
790 strcat(options, " sort");
792 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
794 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
795 assoc->version = 2; /* 1 & 2 are equivalent */
797 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
799 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
802 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
804 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
807 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
808 assoc->maximumRecordSize = *req->maximumRecordSize;
809 if (assoc->maximumRecordSize > control_block->maxrecordsize)
810 assoc->maximumRecordSize = control_block->maxrecordsize;
811 assoc->preferredMessageSize = *req->preferredMessageSize;
812 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
813 assoc->preferredMessageSize = assoc->maximumRecordSize;
814 resp->preferredMessageSize = &assoc->preferredMessageSize;
815 resp->maximumRecordSize = &assoc->maximumRecordSize;
816 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
817 if (binitres->errcode)
819 logf(LOG_LOG, "Connection rejected by backend.");
821 assoc->state = ASSOC_DEAD;
824 assoc->state = ASSOC_UP;
829 * These functions should be merged.
833 * nonsurrogate diagnostic record.
835 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
838 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
840 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
841 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
842 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
844 bib1.proto = assoc->proto;
845 bib1.oclass = CLASS_DIAGSET;
846 bib1.value = VAL_BIB1;
848 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
851 rec->which = Z_Records_NSD;
853 rec->u.nonSurrogateDiagnostic = drec;
854 drec->which = Z_DiagRec_defaultFormat;
855 drec->u.defaultFormat = dr;
857 rec->u.nonSurrogateDiagnostic = dr;
859 dr->diagnosticSetId = odr_oiddup (assoc->encode,
860 oid_ent_to_oid(&bib1, oid));
862 dr->which = Z_DiagForm_v2AddInfo;
863 dr->addinfo = addinfo ? addinfo : "";
868 * surrogate diagnostic.
870 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
871 int error, char *addinfo)
874 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
875 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
877 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
878 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
880 bib1.proto = assoc->proto;
881 bib1.oclass = CLASS_DIAGSET;
882 bib1.value = VAL_BIB1;
884 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
886 rec->databaseName = dbname;
887 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
888 rec->u.surrogateDiagnostic = drec;
889 drec->which = Z_DiagRec_defaultFormat;
890 drec->u.defaultFormat = dr;
891 dr->diagnosticSetId = odr_oiddup (assoc->encode,
892 oid_ent_to_oid(&bib1, oid));
894 dr->which = Z_DiagForm_v2AddInfo;
895 dr->addinfo = addinfo ? addinfo : "";
900 * multiple nonsurrogate diagnostics.
902 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
905 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
906 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
908 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
909 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
910 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
912 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
913 bib1.proto = assoc->proto;
914 bib1.oclass = CLASS_DIAGSET;
915 bib1.value = VAL_BIB1;
918 recs->num_diagRecs = 1;
919 recs->diagRecs = recp;
921 drec->which = Z_DiagRec_defaultFormat;
922 drec->u.defaultFormat = rec;
924 rec->diagnosticSetId = odr_oiddup (assoc->encode,
925 oid_ent_to_oid(&bib1, oid));
926 rec->condition = err;
927 rec->which = Z_DiagForm_v2AddInfo;
928 rec->addinfo = addinfo ? addinfo : "";
932 static Z_Records *pack_records(association *a, char *setname, int start,
933 int *num, Z_RecordComposition *comp,
934 int *next, int *pres, oid_value format)
937 int recno, total_length = 0, toget = *num, dumped_records = 0;
938 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
939 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
940 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
943 records->which = Z_Records_DBOSD;
944 records->u.databaseOrSurDiagnostics = reclist;
945 reclist->num_records = 0;
946 reclist->records = list;
947 *pres = Z_PRES_SUCCESS;
951 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
952 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
953 a->maximumRecordSize);
954 for (recno = start; reclist->num_records < toget; recno++)
956 bend_fetchrequest freq;
957 bend_fetchresult *fres;
958 Z_NamePlusRecord *thisrec;
959 Z_DatabaseRecord *thisext;
963 * we get the number of bytes allocated on the stream before any
964 * allocation done by the backend - this should give us a reasonable
965 * idea of the total size of the data so far.
967 total_length = odr_total(a->encode) - dumped_records;
968 freq.setname = setname;
971 freq.format = format;
972 freq.stream = a->encode;
973 if (!(fres = bend_fetch(a->backend, &freq, 0)))
975 *pres = Z_PRES_FAILURE;
976 return diagrec(a, 2, "Backend interface problem");
978 /* backend should be able to signal whether error is system-wide
979 or only pertaining to current record */
982 *pres = Z_PRES_FAILURE;
983 return diagrec(a, fres->errcode, fres->errstring);
986 this_length = fres->len;
988 this_length = odr_total(a->encode) - total_length;
989 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
990 this_length, total_length);
991 if (this_length + total_length > a->preferredMessageSize)
993 /* record is small enough, really */
994 if (this_length <= a->preferredMessageSize)
996 logf(LOG_DEBUG, " Dropped last normal-sized record");
997 *pres = Z_PRES_PARTIAL_2;
1000 /* record can only be fetched by itself */
1001 if (this_length < a->maximumRecordSize)
1003 logf(LOG_DEBUG, " Record > prefmsgsz");
1006 logf(LOG_DEBUG, " Dropped it");
1007 reclist->records[reclist->num_records] =
1008 surrogatediagrec(a, fres->basename, 16, 0);
1009 reclist->num_records++;
1010 *next = fres->last_in_set ? 0 : recno + 1;
1011 dumped_records += this_length;
1015 else /* too big entirely */
1017 logf(LOG_DEBUG, "Record > maxrcdsz");
1018 reclist->records[reclist->num_records] =
1019 surrogatediagrec(a, fres->basename, 17, 0);
1020 reclist->num_records++;
1021 *next = fres->last_in_set ? 0 : recno + 1;
1022 dumped_records += this_length;
1026 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1028 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1029 strlen(fres->basename) + 1)))
1031 strcpy(thisrec->databaseName, fres->basename);
1032 thisrec->which = Z_NamePlusRecord_databaseRecord;
1033 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1034 sizeof(Z_DatabaseRecord))))
1036 recform.proto = a->proto;
1037 recform.oclass = CLASS_RECSYN;
1038 recform.value = fres->format;
1039 thisext->direct_reference = odr_oiddup(a->encode,
1040 oid_ent_to_oid(&recform, oid));
1041 thisext->indirect_reference = 0;
1042 thisext->descriptor = 0;
1043 if (fres->len < 0) /* Structured data */
1045 switch (fres->format)
1047 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1048 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1049 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1051 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1052 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1055 logf(LOG_FATAL, "Unknown structured format from backend.");
1060 * We cheat on the pointers here. Obviously, the record field
1061 * of the backend-fetch structure should have been a union for
1062 * correctness, but we're stuck with this for backwards
1065 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1067 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1069 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1071 thisext->which = Z_External_sutrs;
1072 thisext->u.sutrs = sutrs;
1073 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1074 sutrs->len = sutrs->size = fres->len;
1075 memcpy(sutrs->buf, fres->record, fres->len);
1077 else /* octet-aligned record. */
1079 thisext->which = Z_External_octet;
1080 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1083 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1086 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1087 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1090 reclist->records[reclist->num_records] = thisrec;
1091 reclist->num_records++;
1092 *next = fres->last_in_set ? 0 : recno + 1;
1094 *num = reclist->num_records;
1098 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1101 Z_SearchRequest *req = reqb->request->u.searchRequest;
1102 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1104 logf(LOG_LOG, "Got SearchRequest.");
1105 save_referenceId (reqb, req->referenceId);
1106 /* store ref id in request */
1108 bsrr->request = reqb;
1109 bsrr->association = assoc;
1110 if (assoc->bend_search)
1112 bsrr->setname = req->resultSetName;
1113 bsrr->replace_set = *req->replaceIndicator;
1114 bsrr->num_bases = req->num_databaseNames;
1115 bsrr->basenames = req->databaseNames;
1116 bsrr->query = req->query;
1117 bsrr->stream = assoc->encode;
1120 bsrr->errstring = NULL;
1121 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1127 bend_searchrequest bsrq;
1128 bend_searchresult *bsrt;
1130 bsrq.setname = req->resultSetName;
1131 bsrq.replace_set = *req->replaceIndicator;
1132 bsrq.num_bases = req->num_databaseNames;
1133 bsrq.basenames = req->databaseNames;
1134 bsrq.query = req->query;
1135 bsrq.stream = assoc->encode;
1136 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1138 bsrr->hits = bsrt->hits;
1139 bsrr->errcode = bsrt->errcode;
1140 bsrr->errstring = bsrt->errstring;
1142 return response_searchRequest(assoc, reqb, bsrr, fd);
1145 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1148 * Prepare a searchresponse based on the backend results. We probably want
1149 * to look at making the fetching of records nonblocking as well, but
1150 * so far, we'll keep things simple.
1151 * If bsrt is null, that means we're called in response to a communications
1152 * event, and we'll have to get the response for ourselves.
1154 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1155 bend_search_rr *bsrt, int *fd)
1157 Z_SearchRequest *req = reqb->request->u.searchRequest;
1158 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1159 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1160 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1161 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1162 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1163 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1170 apdu->which = Z_APDU_searchResponse;
1171 apdu->u.searchResponse = resp;
1172 resp->referenceId = req->referenceId;
1173 resp->additionalSearchInfo = 0;
1174 resp->otherInfo = 0;
1176 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1178 logf(LOG_FATAL, "Bad result from backend");
1181 else if (bsrt->errcode)
1183 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1184 resp->resultCount = nulint;
1185 resp->numberOfRecordsReturned = nulint;
1186 resp->nextResultSetPosition = nulint;
1187 resp->searchStatus = nulint;
1188 resp->resultSetStatus = none;
1189 resp->presentStatus = 0;
1193 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1194 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1195 Z_RecordComposition comp, *compp = 0;
1200 resp->resultCount = &bsrt->hits;
1202 comp.which = Z_RecordComp_simple;
1203 /* how many records does the user agent want, then? */
1204 if (bsrt->hits <= *req->smallSetUpperBound)
1206 *toget = bsrt->hits;
1207 if ((comp.u.simple = req->smallSetElementSetNames))
1210 else if (bsrt->hits < *req->largeSetLowerBound)
1212 *toget = *req->mediumSetPresentNumber;
1213 if (*toget > bsrt->hits)
1214 *toget = bsrt->hits;
1215 if ((comp.u.simple = req->mediumSetElementSetNames))
1221 if (*toget && !resp->records)
1226 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1227 prefformat->oclass != CLASS_RECSYN)
1230 form = prefformat->value;
1231 resp->records = pack_records(assoc, req->resultSetName, 1,
1232 toget, compp, next, presst, form);
1235 resp->numberOfRecordsReturned = toget;
1236 resp->nextResultSetPosition = next;
1237 resp->searchStatus = sr;
1238 resp->resultSetStatus = 0;
1239 resp->presentStatus = presst;
1243 if (*resp->resultCount)
1245 resp->numberOfRecordsReturned = nulint;
1246 resp->nextResultSetPosition = next;
1247 resp->searchStatus = sr;
1248 resp->resultSetStatus = 0;
1249 resp->presentStatus = 0;
1256 * Maybe we got a little over-friendly when we designed bend_fetch to
1257 * get only one record at a time. Some backends can optimise multiple-record
1258 * fetches, and at any rate, there is some overhead involved in
1259 * all that selecting and hopping around. Problem is, of course, that the
1260 * frontend can't know ahead of time how many records it'll need to
1261 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1262 * is downright lousy as a bulk data transfer protocol.
1264 * To start with, we'll do the fetching of records from the backend
1265 * in one operation: To save some trips in and out of the event-handler,
1266 * and to simplify the interface to pack_records. At any rate, asynch
1267 * operation is more fun in operations that have an unpredictable execution
1268 * speed - which is normally more true for search than for present.
1270 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1273 Z_PresentRequest *req = reqb->request->u.presentRequest;
1277 Z_PresentResponse *resp;
1282 logf(LOG_LOG, "Got PresentRequest.");
1284 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1285 prefformat->oclass != CLASS_RECSYN)
1288 form = prefformat->value;
1289 if (assoc->bend_present)
1291 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1292 bprr->setname = req->resultSetId;
1293 bprr->start = *req->resultSetStartPoint;
1294 bprr->number = *req->numberOfRecordsRequested;
1295 bprr->format = form;
1296 bprr->comp = req->recordComposition;
1297 bprr->stream = assoc->encode;
1298 bprr->request = reqb;
1299 bprr->association = assoc;
1301 bprr->errstring = NULL;
1302 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1307 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1308 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1309 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1310 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1311 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1314 *num = *req->numberOfRecordsRequested;
1316 apdu->which = Z_APDU_presentResponse;
1317 apdu->u.presentResponse = resp;
1318 resp->referenceId = req->referenceId;
1319 resp->otherInfo = 0;
1322 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1323 num, req->recordComposition, next, presst, form);
1326 resp->numberOfRecordsReturned = num;
1327 resp->presentStatus = presst;
1328 resp->nextResultSetPosition = next;
1334 * Scan was implemented rather in a hurry, and with support for only the basic
1335 * elements of the service in the backend API. Suggestions are welcome.
1337 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1339 Z_ScanRequest *req = reqb->request->u.scanRequest;
1340 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1341 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1342 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1343 int *numberOfEntriesReturned =
1344 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1345 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1347 bend_scanrequest srq;
1348 bend_scanresult *srs;
1351 logf(LOG_LOG, "Got ScanRequest");
1352 *scanStatus = Z_Scan_failure;
1353 *numberOfEntriesReturned = 0;
1355 apdu->which = Z_APDU_scanResponse;
1356 apdu->u.scanResponse = res;
1357 res->referenceId = req->referenceId;
1359 res->scanStatus = scanStatus;
1360 res->numberOfEntriesReturned = numberOfEntriesReturned;
1361 res->positionOfTerm = 0;
1362 res->entries = ents;
1363 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1364 res->attributeSet = 0;
1367 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1368 attent->oclass != CLASS_ATTSET || attent->value != VAL_BIB1))
1369 ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 121, 0);
1370 else if (req->stepSize && *req->stepSize > 0)
1371 ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 205, 0);
1374 if (req->termListAndStartPoint->term->which == Z_Term_general)
1375 logf(LOG_DEBUG, " term: '%.*s'",
1376 req->termListAndStartPoint->term->u.general->len,
1377 req->termListAndStartPoint->term->u.general->buf);
1378 srq.num_bases = req->num_databaseNames;
1379 srq.basenames = req->databaseNames;
1380 srq.num_entries = *req->numberOfTermsRequested;
1381 srq.term = req->termListAndStartPoint;
1382 srq.stream = assoc->encode;
1383 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1384 attset->oclass != CLASS_RECSYN)
1385 srq.attributeset = VAL_NONE;
1387 srq.attributeset = attset->value;
1388 srq.term_position = req->preferredPositionInResponse ?
1389 *req->preferredPositionInResponse : 1;
1390 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1391 ents->u.nonSurrogateDiagnostics = diagrecs(assoc, 2, 0);
1392 else if (srs->errcode)
1393 ents->u.nonSurrogateDiagnostics = diagrecs(assoc,
1394 srs->errcode, srs->errstring);
1398 Z_Entries *list = (Z_Entries *)odr_malloc (assoc->encode, sizeof(*list));
1399 Z_Entry **tab = (Z_Entry **)odr_malloc (assoc->encode,
1400 sizeof(*tab) * srs->num_entries);
1402 if (srs->status == BEND_SCAN_PARTIAL)
1403 *scanStatus = Z_Scan_partial_5;
1405 *scanStatus = Z_Scan_success;
1406 ents->which = Z_ListEntries_entries;
1407 ents->u.entries = list;
1408 list->entries = tab;
1409 for (i = 0; i < srs->num_entries; i++)
1415 list->entries[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1416 e->which = Z_Entry_termInfo;
1417 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1418 t->suggestedAttributes = 0;
1420 t->alternativeTerm = 0;
1421 t->byAttributes = 0;
1422 t->otherTermInfo = 0;
1423 t->globalOccurrences = &srs->entries[i].occurrences;
1424 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1425 t->term->which = Z_Term_general;
1426 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1428 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1429 strlen(srs->entries[i].term));
1430 memcpy(o->buf, srs->entries[i].term, o->len);
1431 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1432 srs->entries[i].term, srs->entries[i].occurrences);
1434 list->num_entries = i;
1435 res->numberOfEntriesReturned = &list->num_entries;
1436 res->positionOfTerm = &srs->term_position;
1443 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1446 Z_SortRequest *req = reqb->request->u.sortRequest;
1447 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1448 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1450 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1452 logf(LOG_LOG, "Got SortRequest.");
1454 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1455 bsrr->input_setnames = req->inputResultSetNames->strings;
1456 bsrr->output_setname = req->sortedResultSetName;
1457 bsrr->sort_sequence = req->sortSequence;
1458 bsrr->stream = assoc->encode;
1460 bsrr->sort_status = Z_SortStatus_failure;
1462 bsrr->errstring = 0;
1464 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1466 res->referenceId = req->referenceId;
1467 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1468 *res->sortStatus = bsrr->sort_status;
1469 res->resultSetStatus = 0;
1471 res->diagnostics = diagrecs(assoc, bsrr->errcode, bsrr->errstring);
1473 res->diagnostics = 0;
1476 apdu->which = Z_APDU_sortResponse;
1477 apdu->u.sortResponse = res;
1481 static void process_close(association *assoc, request *reqb)
1483 Z_Close *req = reqb->request->u.close;
1484 static char *reasons[] =
1491 "securityViolation",
1498 logf(LOG_LOG, "Got Close, reason %s, message %s",
1499 reasons[*req->closeReason], req->diagnosticInformation ?
1500 req->diagnosticInformation : "NULL");
1501 if (assoc->version < 3) /* to make do_force respond with close */
1503 do_close(assoc, Z_Close_finished, "Association terminated by client");
1506 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1510 reqb->len_refid = refid->len;
1511 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1512 memcpy (reqb->refid, refid->buf, refid->len);
1516 reqb->len_refid = 0;
1521 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1523 process_response (a, req, res);
1526 bend_request bend_request_mk (bend_association a)
1528 request *nreq = request_get (&a->outgoing);
1529 nreq->request_mem = nmem_create ();
1533 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1538 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1539 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1540 id->len = id->size = req->len_refid;
1541 memcpy (id->buf, req->refid, req->len_refid);
1545 void bend_request_destroy (bend_request *req)
1547 nmem_destroy((*req)->request_mem);
1548 request_release(*req);
1552 int bend_backend_respond (bend_association a, bend_request req)
1554 return process_request (a, req);
1557 void bend_request_setdata(bend_request r, void *p)
1562 void *bend_request_getdata(bend_request r)
1564 return r->clientData;
1567 /* Chas: Added in from DALI */
1568 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1570 bend_esrequest_rr esrequest;
1572 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1573 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1575 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1577 logf(LOG_DEBUG,"inside Process esRequest");
1579 esrequest.esr = reqb->request->u.extendedServicesRequest;
1580 esrequest.stream = assoc->encode;
1581 esrequest.errcode = 0;
1582 esrequest.errstring = NULL;
1583 esrequest.request = reqb;
1584 esrequest.association = assoc;
1586 (*assoc->bend_esrequest)(assoc->backend, &esrequest, fd);
1588 /* If the response is being delayed, return NULL */
1589 if (esrequest.request == NULL)
1592 resp->referenceId = req->referenceId;
1594 if ( esrequest.errcode == 0 )
1596 /* Backend service indicates request will be processed */
1597 logf(LOG_DEBUG,"Request will be processed...Good !");
1598 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1602 /* Backend indicates error, request will not be processed */
1603 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1604 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1606 /* Do something with the members of bend_extendedservice */
1608 logf(LOG_DEBUG,"Send the result apdu");
1613 /* Chas: End of addition from DALI */