2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.75 1998-05-18 10:13:07 adam
8 * Fixed call to es_request handler - extra argument was passed.
10 * Revision 1.74 1998/03/31 15:13:20 adam
11 * Development towards compiled ASN.1.
13 * Revision 1.73 1998/03/31 11:07:45 adam
14 * Furhter work on UNIverse resource report.
15 * Added Extended Services handling in frontend server.
17 * Revision 1.72 1998/02/11 11:53:35 adam
18 * Changed code so that it compiles as C++.
20 * Revision 1.71 1998/02/10 11:03:57 adam
21 * Added support for extended handlers in backend server interface.
23 * Revision 1.70 1998/01/29 13:15:35 adam
24 * Implemented sort for the backend interface.
26 * Revision 1.69 1997/09/30 11:48:12 adam
27 * Fixed bug introduced by previous commit.
29 * Revision 1.68 1997/09/29 13:18:59 adam
30 * Added function, oid_ent_to_oid, to replace the function
31 * oid_getoidbyent, which is not thread safe.
33 * Revision 1.67 1997/09/17 12:10:40 adam
36 * Revision 1.66 1997/09/05 15:26:44 adam
37 * Added ODR encode in search and scen bend request structures.
38 * Fixed a few enums that caused trouble with C++.
40 * Revision 1.65 1997/09/01 08:53:01 adam
41 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
42 * moved a separate directory. MSV5.0 project server.dsp created.
43 * As an option, the server can now operate as an NT service.
45 * Revision 1.64 1997/04/30 08:52:11 quinn
48 * Revision 1.63 1996/10/11 11:57:26 quinn
51 * Revision 1.62 1996/07/06 19:58:35 quinn
52 * System headerfiles gathered in yconfig
54 * Revision 1.61 1996/06/10 08:56:16 quinn
57 * Revision 1.60 1996/05/30 11:03:10 quinn
58 * Fixed NextresultSetPosition bug fixed.
60 * Revision 1.59 1996/05/14 09:26:46 quinn
61 * Added attribute set to scan backend
63 * Revision 1.58 1996/02/20 12:53:04 quinn
66 * Revision 1.57 1996/01/02 08:57:47 quinn
67 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
69 * Revision 1.56 1995/12/14 11:09:57 quinn
72 * Revision 1.55 1995/11/08 17:41:37 quinn
75 * Revision 1.54 1995/11/08 15:11:29 quinn
76 * Log of close transmit.
78 * Revision 1.53 1995/11/01 13:54:58 quinn
81 * Revision 1.52 1995/11/01 12:19:13 quinn
82 * Second attempt to fix same bug.
84 * Revision 1.50 1995/10/25 16:58:32 quinn
87 * Revision 1.49 1995/10/16 13:51:53 quinn
88 * Changes to provide Especs to the backend.
90 * Revision 1.48 1995/10/06 08:51:20 quinn
93 * Revision 1.47 1995/08/29 14:24:16 quinn
94 * Added second half of close-handshake
96 * Revision 1.46 1995/08/29 11:17:58 quinn
97 * Added code to receive close
99 * Revision 1.45 1995/08/21 09:11:00 quinn
100 * Smallish fixes to suppport new formats.
102 * Revision 1.44 1995/08/17 12:45:25 quinn
103 * Fixed minor problems with GRS-1. Added support in c&s.
105 * Revision 1.43 1995/08/15 12:00:31 quinn
108 * Revision 1.42 1995/08/15 11:16:50 quinn
110 * Revision 1.41 1995/08/02 10:23:06 quinn
113 * Revision 1.40 1995/07/31 14:34:26 quinn
114 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
116 * Revision 1.39 1995/06/27 13:21:00 quinn
119 * Revision 1.38 1995/06/19 12:39:11 quinn
120 * Fixed bug in timeout code. Added BER dumper.
122 * Revision 1.37 1995/06/16 13:16:14 quinn
123 * Fixed Defaultdiagformat.
125 * Revision 1.36 1995/06/16 10:31:36 quinn
126 * Added session timeout.
128 * Revision 1.35 1995/06/15 07:45:14 quinn
131 * Revision 1.34 1995/06/14 15:26:46 quinn
132 * *** empty log message ***
134 * Revision 1.33 1995/06/06 14:57:05 quinn
135 * Better diagnostics.
137 * Revision 1.32 1995/06/06 08:41:44 quinn
138 * Better diagnostics.
140 * Revision 1.31 1995/06/06 08:15:37 quinn
143 * Revision 1.30 1995/06/05 10:53:32 quinn
144 * Added a better SCAN.
146 * Revision 1.29 1995/06/01 11:25:03 quinn
149 * Revision 1.28 1995/06/01 11:21:01 quinn
150 * Attempting to fix a bug in pack-records. replaced break with continue
151 * for large records, according to standard.
153 * Revision 1.27 1995/05/29 08:12:06 quinn
156 * Revision 1.26 1995/05/18 13:02:12 quinn
159 * Revision 1.25 1995/05/17 08:42:26 quinn
160 * Transfer auth info to backend. Allow backend to reject init gracefully.
162 * Revision 1.24 1995/05/16 08:51:04 quinn
163 * License, documentation, and memory fixes
165 * Revision 1.23 1995/05/15 13:25:10 quinn
168 * Revision 1.22 1995/05/15 11:56:39 quinn
169 * Asynchronous facilities. Restructuring of seshigh code.
171 * Revision 1.21 1995/05/02 08:53:19 quinn
172 * Trying in vain to fix comm with ISODE
174 * Revision 1.20 1995/04/20 15:13:00 quinn
177 * Revision 1.19 1995/04/18 08:15:34 quinn
178 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
179 * neater. We'll make the same change for decoding one day.
181 * Revision 1.18 1995/04/17 11:28:25 quinn
184 * Revision 1.17 1995/04/10 10:23:36 quinn
185 * Some work to add scan and other things.
187 * Revision 1.16 1995/03/31 09:18:55 quinn
190 * Revision 1.15 1995/03/30 14:03:23 quinn
191 * Added RFC1006 as separate library
193 * Revision 1.14 1995/03/30 12:18:17 quinn
196 * Revision 1.13 1995/03/30 09:09:24 quinn
197 * Added state-handle and some support for asynchronous activities.
199 * Revision 1.12 1995/03/29 15:40:16 quinn
200 * Ongoing work. Statserv is now dynamic by default
202 * Revision 1.11 1995/03/28 09:16:21 quinn
203 * Added record packing to the search request
205 * Revision 1.10 1995/03/27 08:34:24 quinn
206 * Added dynamic server functionality.
207 * Released bindings to session.c (is now redundant)
209 * Revision 1.9 1995/03/22 15:01:26 quinn
210 * Adjusting record packing.
212 * Revision 1.8 1995/03/22 10:13:21 quinn
213 * Working on record packer
215 * Revision 1.7 1995/03/21 15:53:31 quinn
218 * Revision 1.6 1995/03/21 12:30:09 quinn
219 * Beginning to add support for record packing.
221 * Revision 1.5 1995/03/17 10:44:13 quinn
222 * Added catch of null-string in makediagrec
224 * Revision 1.4 1995/03/17 10:18:08 quinn
225 * Added memory management.
227 * Revision 1.3 1995/03/16 17:42:39 quinn
230 * Revision 1.2 1995/03/16 13:29:01 quinn
231 * Partitioned server.
233 * Revision 1.1 1995/03/15 16:02:10 quinn
234 * Modded session.c to seshigh.c
239 * Frontend server logic.
241 * This code receives incoming APDUs, and handles client requests by means
242 * of the backend API.
244 * Some of the code is getting quite involved, compared to simpler servers -
245 * primarily because it is asynchronous both in the communication with
246 * the user and the backend. We think the complexity will pay off in
247 * the form of greater flexibility when more asynchronous facilities
250 * Memory management has become somewhat involved. In the simple case, where
251 * only one PDU is pending at a time, it will simply reuse the same memory,
252 * once it has found its working size. When we enable multiple concurrent
253 * operations, perhaps even with multiple parallel calls to the backend, it
254 * will maintain a pool of buffers for encoding and decoding, trying to
255 * minimize memory allocation/deallocation during normal operation.
257 * TODOs include (and will be done in order of public interest):
259 * Support for EXPLAIN - provide simple meta-database system.
260 * Support for access control.
261 * Support for resource control.
262 * Support for extended services - primarily Item Order.
263 * Rest of Z39.50-1994
278 #include <comstack.h>
284 #include <statserv.h>
288 static int process_request(association *assoc, request *req);
289 void backend_response(IOCHAN i, int event);
290 static int process_response(association *assoc, request *req, Z_APDU *res);
291 static Z_APDU *process_initRequest(association *assoc, request *reqb);
292 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
294 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
295 bend_search_rr *bsrr, int *fd);
296 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
298 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
299 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
300 static void process_close(association *assoc, request *reqb);
301 void save_referenceId (request *reqb, Z_ReferenceId *refid);
303 static FILE *apduf = 0; /* for use in static mode */
304 static statserv_options_block *control_block = 0;
306 /* Chas: Added in from DALI */
307 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
308 /* Chas: End of addition from DALI */
311 * Create and initialize a new association-handle.
312 * channel : iochannel for the current line.
313 * link : communications channel.
314 * Returns: 0 or a new association handle.
316 association *create_association(IOCHAN channel, COMSTACK link)
321 control_block = statserv_getcontrol();
322 if (!(anew = (association *)xmalloc(sizeof(*anew))))
324 anew->client_chan = channel;
325 anew->client_link = link;
326 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
327 !(anew->encode = odr_createmem(ODR_ENCODE)))
329 if (*control_block->apdufile)
334 strcpy(filename, control_block->apdufile);
335 if (!(anew->print = odr_createmem(ODR_PRINT)))
337 if (*control_block->apdufile != '-')
339 strcpy(filename, control_block->apdufile);
340 if (!control_block->dynamic)
344 if (!(apduf = fopen(filename, "w")))
346 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
349 setvbuf(apduf, 0, _IONBF, 0);
355 sprintf(filename + strlen(filename), ".%d", getpid());
356 if (!(f = fopen(filename, "w")))
358 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
361 setvbuf(f, 0, _IONBF, 0);
363 odr_setprint(anew->print, f);
368 anew->input_buffer = 0;
369 anew->input_buffer_len = 0;
371 anew->state = ASSOC_NEW;
372 request_initq(&anew->incoming);
373 request_initq(&anew->outgoing);
374 anew->proto = cs_getproto(link);
379 * Free association and release resources.
381 void destroy_association(association *h)
383 odr_destroy(h->decode);
384 odr_destroy(h->encode);
386 odr_destroy(h->print);
388 xfree(h->input_buffer);
390 bend_close(h->backend);
391 while (request_deq(&h->incoming));
392 while (request_deq(&h->outgoing));
393 request_delq(&h->incoming);
394 request_delq(&h->outgoing);
398 static void do_close(association *a, int reason, char *message)
401 Z_Close *cls = zget_Close(a->encode);
402 request *req = request_get(&a->outgoing);
404 /* Purge request queue */
405 while (request_deq(&a->incoming));
406 while (request_deq(&a->outgoing));
409 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
410 reason, message ? message : "none");
411 apdu.which = Z_APDU_close;
413 *cls->closeReason = reason;
414 cls->diagnosticInformation = message;
415 process_response(a, req, &apdu);
416 iochan_settimeout(a->client_chan, 60);
420 logf(LOG_DEBUG, "v2 client. No Close PDU");
421 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
423 a->state = ASSOC_DEAD;
427 * This is where PDUs from the client are read and the further
428 * processing is initiated. Flow of control moves down through the
429 * various process_* functions below, until the encoded result comes back up
430 * to the output handler in here.
432 * h : the I/O channel that has an outstanding event.
433 * event : the current outstanding event.
435 void ir_session(IOCHAN h, int event)
438 association *assoc = (association *)iochan_getdata(h);
439 COMSTACK conn = assoc->client_link;
442 assert(h && conn && assoc);
443 if (event == EVENT_TIMEOUT)
445 if (assoc->state != ASSOC_UP)
447 logf(LOG_LOG, "Final timeout - closing connection.");
449 destroy_association(assoc);
454 logf(LOG_LOG, "Session idle too long. Sending close.");
455 do_close(assoc, Z_Close_lackOfActivity, 0);
459 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
461 if (event & EVENT_INPUT)
463 logf(LOG_DEBUG, "ir_session (input)");
464 assert(assoc && conn);
465 /* We aren't speaking to this fellow */
466 if (assoc->state == ASSOC_DEAD)
468 logf(LOG_LOG, "Closed connection after reject");
470 destroy_association(assoc);
474 if ((res = cs_get(conn, &assoc->input_buffer,
475 &assoc->input_buffer_len)) <= 0)
477 logf(LOG_LOG, "Connection closed by client");
479 destroy_association(assoc);
483 else if (res == 1) /* incomplete read - wait for more */
485 if (cs_more(conn)) /* more stuff - call us again later, please */
486 iochan_setevent(h, EVENT_INPUT);
488 /* we got a complete PDU. Let's decode it */
489 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
490 req = request_get(&assoc->incoming); /* get a new request structure */
491 odr_reset(assoc->decode);
492 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
493 if (!z_APDU(assoc->decode, &req->request, 0))
495 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
496 odr_errmsg(odr_geterror(assoc->decode)),
497 odr_offset(assoc->decode));
498 logf(LOG_LOG, "PDU dump:");
499 odr_dumpBER(log_file(), assoc->input_buffer, res);
500 do_close(assoc, Z_Close_protocolError, "Malformed package");
503 req->request_mem = odr_extract_mem(assoc->decode);
504 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
506 logf(LOG_WARN, "ODR print error: %s",
507 odr_errmsg(odr_geterror(assoc->print)));
508 odr_reset(assoc->print);
510 request_enq(&assoc->incoming, req);
513 /* can we do something yet? */
514 req = request_head(&assoc->incoming);
515 if (req->state == REQUEST_IDLE)
517 request_deq(&assoc->incoming);
518 if (process_request(assoc, req) < 0)
519 do_close(assoc, Z_Close_systemProblem, "Unknown error");
522 if (event & EVENT_OUTPUT)
524 request *req = request_head(&assoc->outgoing);
526 logf(LOG_DEBUG, "ir_session (output)");
527 req->state = REQUEST_PENDING;
528 switch (res = cs_put(conn, req->response, req->len_response))
531 logf(LOG_LOG, "Connection closed by client");
533 destroy_association(assoc);
536 case 0: /* all sent - release the request structure */
537 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
538 nmem_destroy(req->request_mem);
539 request_deq(&assoc->outgoing);
540 request_release(req);
541 if (!request_head(&assoc->outgoing))
542 iochan_clearflag(h, EVENT_OUTPUT);
544 /* value of 1 -- partial send -- is simply ignored */
547 if (event & EVENT_EXCEPT)
549 logf(LOG_DEBUG, "ir_session (exception)");
551 destroy_association(assoc);
557 * Initiate request processing.
559 static int process_request(association *assoc, request *req)
565 assert(req && req->state == REQUEST_IDLE);
566 switch (req->request->which)
568 case Z_APDU_initRequest:
569 res = process_initRequest(assoc, req); break;
570 case Z_APDU_searchRequest:
571 res = process_searchRequest(assoc, req, &fd); break;
572 case Z_APDU_presentRequest:
573 res = process_presentRequest(assoc, req, &fd); break;
574 case Z_APDU_scanRequest:
575 res = process_scanRequest(assoc, req, &fd); break;
576 /* Chas: Added in from DALI */
577 case Z_APDU_extendedServicesRequest:
578 if (assoc->bend_esrequest)
579 res = process_ESRequest(assoc, req, &fd);
582 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
585 /* Chas: End of addition from DALI */
587 case Z_APDU_sortRequest:
588 if (assoc->bend_sort)
589 res = process_sortRequest(assoc, req, &fd);
592 logf(LOG_WARN, "Cannot handle SORT APDU");
597 process_close(assoc, req); return 0;
599 logf(LOG_WARN, "Bad APDU received");
604 logf(LOG_DEBUG, " result immediately available");
605 retval = process_response(assoc, req, res);
609 logf(LOG_DEBUG, " result unavailble");
612 else /* no result yet - one will be provided later */
616 /* Set up an I/O handler for the fd supplied by the backend */
618 logf(LOG_DEBUG, " establishing handler for result");
619 req->state = REQUEST_PENDING;
620 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
622 iochan_setdata(chan, assoc);
629 * Handle message from the backend.
631 void backend_response(IOCHAN i, int event)
633 association *assoc = (association *)iochan_getdata(i);
634 request *req = request_head(&assoc->incoming);
638 logf(LOG_DEBUG, "backend_response");
639 assert(assoc && req && req->state != REQUEST_IDLE);
640 /* determine what it is we're waiting for */
641 switch (req->request->which)
643 case Z_APDU_searchRequest:
644 res = response_searchRequest(assoc, req, 0, &fd); break;
646 case Z_APDU_presentRequest:
647 res = response_presentRequest(assoc, req, 0, &fd); break;
648 case Z_APDU_scanRequest:
649 res = response_scanRequest(assoc, req, 0, &fd); break;
652 logf(LOG_WARN, "Serious programmer's lapse or bug");
655 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
657 logf(LOG_LOG, "Fatal error when talking to backend");
658 do_close(assoc, Z_Close_systemProblem, 0);
662 else if (!res) /* no result yet - try again later */
664 logf(LOG_DEBUG, " no result yet");
665 iochan_setfd(i, fd); /* in case fd has changed */
670 * Encode response, and transfer the request structure to the outgoing queue.
672 static int process_response(association *assoc, request *req, Z_APDU *res)
674 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
675 if (!z_APDU(assoc->encode, &res, 0))
677 logf(LOG_WARN, "ODR error when encoding response: %s",
678 odr_errmsg(odr_geterror(assoc->decode)));
679 odr_reset(assoc->encode);
682 req->response = odr_getbuf(assoc->encode, &req->len_response,
683 &req->size_response);
684 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
685 if (assoc->print && !z_APDU(assoc->print, &res, 0))
687 logf(LOG_WARN, "ODR print error: %s",
688 odr_errmsg(odr_geterror(assoc->print)));
689 odr_reset(assoc->print);
691 odr_reset(assoc->encode);
692 req->state = REQUEST_IDLE;
693 request_enq(&assoc->outgoing, req);
694 /* turn the work over to the ir_session handler */
695 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
696 /* Is there more work to be done? give that to the input handler too */
698 if (request_head(&assoc->incoming))
700 logf (LOG_DEBUG, "more work to be done");
701 iochan_setevent(assoc->client_chan, EVENT_WORK);
708 * Handle init request.
709 * At the moment, we don't check the options
710 * anywhere else in the code - we just try not to do anything that would
711 * break a naive client. We'll toss 'em into the association block when
712 * we need them there.
714 static Z_APDU *process_initRequest(association *assoc, request *reqb)
716 Z_InitRequest *req = reqb->request->u.initRequest;
717 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
718 Z_InitResponse *resp = apdu->u.initResponse;
719 bend_initrequest binitreq;
720 bend_initresult *binitres;
723 logf(LOG_LOG, "Got initRequest");
724 if (req->implementationId)
725 logf(LOG_LOG, "Id: %s", req->implementationId);
726 if (req->implementationName)
727 logf(LOG_LOG, "Name: %s", req->implementationName);
728 if (req->implementationVersion)
729 logf(LOG_LOG, "Version: %s", req->implementationVersion);
731 binitreq.stream = assoc->encode;
732 binitreq.configname = "default-config";
733 binitreq.auth = req->idAuthentication;
734 binitreq.bend_sort = NULL;
735 binitreq.bend_search = NULL;
736 binitreq.bend_present = NULL;
737 binitreq.bend_esrequest = NULL;
738 if (!(binitres = bend_init(&binitreq)))
740 logf(LOG_WARN, "Bad response from backend.");
744 assoc->backend = binitres->handle;
745 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
746 logf (LOG_DEBUG, "Sort handler installed");
747 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
748 logf (LOG_DEBUG, "Search handler installed");
749 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
750 logf (LOG_DEBUG, "Present handler installed");
751 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
752 logf (LOG_DEBUG, "ESRequest handler installed");
754 resp->referenceId = req->referenceId;
756 /* let's tell the client what we can do */
757 if (ODR_MASK_GET(req->options, Z_Options_search))
759 ODR_MASK_SET(resp->options, Z_Options_search);
760 strcat(options, "srch");
762 if (ODR_MASK_GET(req->options, Z_Options_present))
764 ODR_MASK_SET(resp->options, Z_Options_present);
765 strcat(options, " prst");
767 if (ODR_MASK_GET(req->options, Z_Options_delSet))
769 ODR_MASK_SET(resp->options, Z_Options_delSet);
770 strcat(options, " del");
772 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
773 binitreq.bend_esrequest)
775 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
776 strcat (options, " extendedServices");
778 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
780 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
781 strcat(options, " namedresults");
783 if (ODR_MASK_GET(req->options, Z_Options_scan))
785 ODR_MASK_SET(resp->options, Z_Options_scan);
786 strcat(options, " scan");
788 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
790 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
791 strcat(options, " concurop");
793 if (ODR_MASK_GET(req->options, Z_Options_sort && binitreq.bend_sort))
795 ODR_MASK_SET(resp->options, Z_Options_sort);
796 strcat(options, " sort");
798 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
800 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
801 assoc->version = 2; /* 1 & 2 are equivalent */
803 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
805 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
808 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
810 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
813 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
814 assoc->maximumRecordSize = *req->maximumRecordSize;
815 if (assoc->maximumRecordSize > control_block->maxrecordsize)
816 assoc->maximumRecordSize = control_block->maxrecordsize;
817 assoc->preferredMessageSize = *req->preferredMessageSize;
818 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
819 assoc->preferredMessageSize = assoc->maximumRecordSize;
820 resp->preferredMessageSize = &assoc->preferredMessageSize;
821 resp->maximumRecordSize = &assoc->maximumRecordSize;
822 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
823 if (binitres->errcode)
825 logf(LOG_LOG, "Connection rejected by backend.");
827 assoc->state = ASSOC_DEAD;
830 assoc->state = ASSOC_UP;
835 * These functions should be merged.
838 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
841 dr->which = Z_DefaultDiagFormat_v2Addinfo;
842 dr->u.v2Addinfo = addinfo ? addinfo : "";
844 dr->which = Z_DiagForm_v2AddInfo;
845 dr->addinfo = addinfo ? addinfo : "";
850 * nonsurrogate diagnostic record.
852 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
855 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
857 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
858 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
859 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
861 bib1.proto = assoc->proto;
862 bib1.oclass = CLASS_DIAGSET;
863 bib1.value = VAL_BIB1;
865 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
868 rec->which = Z_Records_NSD;
870 rec->u.nonSurrogateDiagnostic = dr;
873 rec->u.nonSurrogateDiagnostic = drec;
874 drec->which = Z_DiagRec_defaultFormat;
875 drec->u.defaultFormat = dr;
877 rec->u.nonSurrogateDiagnostic = dr;
880 dr->diagnosticSetId = odr_oiddup (assoc->encode,
881 oid_ent_to_oid(&bib1, oid));
883 set_addinfo (dr, addinfo);
888 * surrogate diagnostic.
890 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
891 int error, char *addinfo)
894 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
895 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
897 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
898 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
900 bib1.proto = assoc->proto;
901 bib1.oclass = CLASS_DIAGSET;
902 bib1.value = VAL_BIB1;
904 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
906 rec->databaseName = dbname;
907 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
908 rec->u.surrogateDiagnostic = drec;
909 drec->which = Z_DiagRec_defaultFormat;
910 drec->u.defaultFormat = dr;
911 dr->diagnosticSetId = odr_oiddup (assoc->encode,
912 oid_ent_to_oid(&bib1, oid));
914 set_addinfo (dr, addinfo);
920 * multiple nonsurrogate diagnostics.
922 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
925 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
926 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
928 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
929 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
930 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
932 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
933 bib1.proto = assoc->proto;
934 bib1.oclass = CLASS_DIAGSET;
935 bib1.value = VAL_BIB1;
938 recs->num_diagRecs = 1;
939 recs->diagRecs = recp;
941 drec->which = Z_DiagRec_defaultFormat;
942 drec->u.defaultFormat = rec;
944 rec->diagnosticSetId = odr_oiddup (assoc->encode,
945 oid_ent_to_oid(&bib1, oid));
946 rec->condition = err;
949 rec->which = Z_DefaultDiagFormat_v2Addinfo;
950 rec->u.v2Addinfo = addinfo ? addinfo : "";
952 rec->which = Z_DiagForm_v2AddInfo;
953 rec->addinfo = addinfo ? addinfo : "";
958 static Z_Records *pack_records(association *a, char *setname, int start,
959 int *num, Z_RecordComposition *comp,
960 int *next, int *pres, oid_value format)
963 int recno, total_length = 0, toget = *num, dumped_records = 0;
964 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
965 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
966 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
969 records->which = Z_Records_DBOSD;
970 records->u.databaseOrSurDiagnostics = reclist;
971 reclist->num_records = 0;
972 reclist->records = list;
973 *pres = Z_PRES_SUCCESS;
977 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
978 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
979 a->maximumRecordSize);
980 for (recno = start; reclist->num_records < toget; recno++)
982 bend_fetchrequest freq;
983 bend_fetchresult *fres;
984 Z_NamePlusRecord *thisrec;
985 Z_DatabaseRecord *thisext;
989 * we get the number of bytes allocated on the stream before any
990 * allocation done by the backend - this should give us a reasonable
991 * idea of the total size of the data so far.
993 total_length = odr_total(a->encode) - dumped_records;
994 freq.setname = setname;
997 freq.format = format;
998 freq.stream = a->encode;
999 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1001 *pres = Z_PRES_FAILURE;
1002 return diagrec(a, 2, "Backend interface problem");
1004 /* backend should be able to signal whether error is system-wide
1005 or only pertaining to current record */
1008 *pres = Z_PRES_FAILURE;
1009 return diagrec(a, fres->errcode, fres->errstring);
1012 this_length = fres->len;
1014 this_length = odr_total(a->encode) - total_length;
1015 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1016 this_length, total_length);
1017 if (this_length + total_length > a->preferredMessageSize)
1019 /* record is small enough, really */
1020 if (this_length <= a->preferredMessageSize)
1022 logf(LOG_DEBUG, " Dropped last normal-sized record");
1023 *pres = Z_PRES_PARTIAL_2;
1026 /* record can only be fetched by itself */
1027 if (this_length < a->maximumRecordSize)
1029 logf(LOG_DEBUG, " Record > prefmsgsz");
1032 logf(LOG_DEBUG, " Dropped it");
1033 reclist->records[reclist->num_records] =
1034 surrogatediagrec(a, fres->basename, 16, 0);
1035 reclist->num_records++;
1036 *next = fres->last_in_set ? 0 : recno + 1;
1037 dumped_records += this_length;
1041 else /* too big entirely */
1043 logf(LOG_DEBUG, "Record > maxrcdsz");
1044 reclist->records[reclist->num_records] =
1045 surrogatediagrec(a, fres->basename, 17, 0);
1046 reclist->num_records++;
1047 *next = fres->last_in_set ? 0 : recno + 1;
1048 dumped_records += this_length;
1052 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1054 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1055 strlen(fres->basename) + 1)))
1057 strcpy(thisrec->databaseName, fres->basename);
1058 thisrec->which = Z_NamePlusRecord_databaseRecord;
1059 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1060 sizeof(Z_DatabaseRecord))))
1062 recform.proto = a->proto;
1063 recform.oclass = CLASS_RECSYN;
1064 recform.value = fres->format;
1065 thisext->direct_reference = odr_oiddup(a->encode,
1066 oid_ent_to_oid(&recform, oid));
1067 thisext->indirect_reference = 0;
1068 thisext->descriptor = 0;
1069 if (fres->len < 0) /* Structured data */
1071 switch (fres->format)
1073 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1074 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1075 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1077 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1078 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1081 logf(LOG_FATAL, "Unknown structured format from backend.");
1086 * We cheat on the pointers here. Obviously, the record field
1087 * of the backend-fetch structure should have been a union for
1088 * correctness, but we're stuck with this for backwards
1091 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1093 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1096 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1098 memcpy(sutrs, fres->record, fres->len);
1099 sutrs[fres->len] = '\0';
1101 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1103 thisext->which = Z_External_sutrs;
1104 thisext->u.sutrs = sutrs;
1105 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1106 sutrs->len = sutrs->size = fres->len;
1107 memcpy(sutrs->buf, fres->record, fres->len);
1110 else /* octet-aligned record. */
1112 thisext->which = Z_External_octet;
1113 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1116 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1119 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1120 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1123 reclist->records[reclist->num_records] = thisrec;
1124 reclist->num_records++;
1125 *next = fres->last_in_set ? 0 : recno + 1;
1127 *num = reclist->num_records;
1131 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1134 Z_SearchRequest *req = reqb->request->u.searchRequest;
1135 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1137 logf(LOG_LOG, "Got SearchRequest.");
1138 save_referenceId (reqb, req->referenceId);
1139 /* store ref id in request */
1141 bsrr->request = reqb;
1142 bsrr->association = assoc;
1143 if (assoc->bend_search)
1145 bsrr->setname = req->resultSetName;
1146 bsrr->replace_set = *req->replaceIndicator;
1147 bsrr->num_bases = req->num_databaseNames;
1148 bsrr->basenames = req->databaseNames;
1149 bsrr->query = req->query;
1150 bsrr->stream = assoc->encode;
1153 bsrr->errstring = NULL;
1154 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1160 bend_searchrequest bsrq;
1161 bend_searchresult *bsrt;
1163 bsrq.setname = req->resultSetName;
1164 bsrq.replace_set = *req->replaceIndicator;
1165 bsrq.num_bases = req->num_databaseNames;
1166 bsrq.basenames = req->databaseNames;
1167 bsrq.query = req->query;
1168 bsrq.stream = assoc->encode;
1169 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1171 bsrr->hits = bsrt->hits;
1172 bsrr->errcode = bsrt->errcode;
1173 bsrr->errstring = bsrt->errstring;
1175 return response_searchRequest(assoc, reqb, bsrr, fd);
1178 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1181 * Prepare a searchresponse based on the backend results. We probably want
1182 * to look at making the fetching of records nonblocking as well, but
1183 * so far, we'll keep things simple.
1184 * If bsrt is null, that means we're called in response to a communications
1185 * event, and we'll have to get the response for ourselves.
1187 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1188 bend_search_rr *bsrt, int *fd)
1190 Z_SearchRequest *req = reqb->request->u.searchRequest;
1191 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1192 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1193 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1194 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1195 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1196 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1203 apdu->which = Z_APDU_searchResponse;
1204 apdu->u.searchResponse = resp;
1205 resp->referenceId = req->referenceId;
1206 resp->additionalSearchInfo = 0;
1207 resp->otherInfo = 0;
1209 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1211 logf(LOG_FATAL, "Bad result from backend");
1214 else if (bsrt->errcode)
1216 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1217 resp->resultCount = nulint;
1218 resp->numberOfRecordsReturned = nulint;
1219 resp->nextResultSetPosition = nulint;
1220 resp->searchStatus = nulint;
1221 resp->resultSetStatus = none;
1222 resp->presentStatus = 0;
1226 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1227 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1228 Z_RecordComposition comp, *compp = 0;
1233 resp->resultCount = &bsrt->hits;
1235 comp.which = Z_RecordComp_simple;
1236 /* how many records does the user agent want, then? */
1237 if (bsrt->hits <= *req->smallSetUpperBound)
1239 *toget = bsrt->hits;
1240 if ((comp.u.simple = req->smallSetElementSetNames))
1243 else if (bsrt->hits < *req->largeSetLowerBound)
1245 *toget = *req->mediumSetPresentNumber;
1246 if (*toget > bsrt->hits)
1247 *toget = bsrt->hits;
1248 if ((comp.u.simple = req->mediumSetElementSetNames))
1254 if (*toget && !resp->records)
1259 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1260 prefformat->oclass != CLASS_RECSYN)
1263 form = prefformat->value;
1264 resp->records = pack_records(assoc, req->resultSetName, 1,
1265 toget, compp, next, presst, form);
1268 resp->numberOfRecordsReturned = toget;
1269 resp->nextResultSetPosition = next;
1270 resp->searchStatus = sr;
1271 resp->resultSetStatus = 0;
1272 resp->presentStatus = presst;
1276 if (*resp->resultCount)
1278 resp->numberOfRecordsReturned = nulint;
1279 resp->nextResultSetPosition = next;
1280 resp->searchStatus = sr;
1281 resp->resultSetStatus = 0;
1282 resp->presentStatus = 0;
1289 * Maybe we got a little over-friendly when we designed bend_fetch to
1290 * get only one record at a time. Some backends can optimise multiple-record
1291 * fetches, and at any rate, there is some overhead involved in
1292 * all that selecting and hopping around. Problem is, of course, that the
1293 * frontend can't know ahead of time how many records it'll need to
1294 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1295 * is downright lousy as a bulk data transfer protocol.
1297 * To start with, we'll do the fetching of records from the backend
1298 * in one operation: To save some trips in and out of the event-handler,
1299 * and to simplify the interface to pack_records. At any rate, asynch
1300 * operation is more fun in operations that have an unpredictable execution
1301 * speed - which is normally more true for search than for present.
1303 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1306 Z_PresentRequest *req = reqb->request->u.presentRequest;
1310 Z_PresentResponse *resp;
1315 logf(LOG_LOG, "Got PresentRequest.");
1317 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1318 prefformat->oclass != CLASS_RECSYN)
1321 form = prefformat->value;
1322 if (assoc->bend_present)
1324 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1325 bprr->setname = req->resultSetId;
1326 bprr->start = *req->resultSetStartPoint;
1327 bprr->number = *req->numberOfRecordsRequested;
1328 bprr->format = form;
1329 bprr->comp = req->recordComposition;
1330 bprr->stream = assoc->encode;
1331 bprr->request = reqb;
1332 bprr->association = assoc;
1334 bprr->errstring = NULL;
1335 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1340 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1341 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1342 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1343 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1344 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1347 *num = *req->numberOfRecordsRequested;
1349 apdu->which = Z_APDU_presentResponse;
1350 apdu->u.presentResponse = resp;
1351 resp->referenceId = req->referenceId;
1352 resp->otherInfo = 0;
1355 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1356 num, req->recordComposition, next, presst, form);
1359 resp->numberOfRecordsReturned = num;
1360 resp->presentStatus = presst;
1361 resp->nextResultSetPosition = next;
1367 * Scan was implemented rather in a hurry, and with support for only the basic
1368 * elements of the service in the backend API. Suggestions are welcome.
1370 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1372 Z_ScanRequest *req = reqb->request->u.scanRequest;
1373 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1374 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1375 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1376 int *numberOfEntriesReturned =
1377 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1378 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1379 Z_DiagRecs *diagrecs_p = NULL;
1381 bend_scanrequest srq;
1382 bend_scanresult *srs;
1385 logf(LOG_LOG, "Got ScanRequest");
1386 *scanStatus = Z_Scan_failure;
1387 *numberOfEntriesReturned = 0;
1389 apdu->which = Z_APDU_scanResponse;
1390 apdu->u.scanResponse = res;
1391 res->referenceId = req->referenceId;
1393 res->scanStatus = scanStatus;
1394 res->numberOfEntriesReturned = numberOfEntriesReturned;
1395 res->positionOfTerm = 0;
1396 res->entries = ents;
1398 ents->num_entries = 0;
1399 ents->entries = NULL;
1400 ents->num_nonsurrogateDiagnostics = 0;
1401 ents->nonsurrogateDiagnostics = NULL;
1403 ents->which = Z_ListEntries_entries;
1405 res->attributeSet = 0;
1408 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1409 attent->oclass != CLASS_ATTSET
1410 || attent->value != VAL_BIB1))
1411 diagrecs_p = diagrecs(assoc, 121, 0);
1412 else if (req->stepSize && *req->stepSize > 0)
1413 diagrecs_p = diagrecs(assoc, 205, 0);
1416 if (req->termListAndStartPoint->term->which == Z_Term_general)
1417 logf(LOG_DEBUG, " term: '%.*s'",
1418 req->termListAndStartPoint->term->u.general->len,
1419 req->termListAndStartPoint->term->u.general->buf);
1420 srq.num_bases = req->num_databaseNames;
1421 srq.basenames = req->databaseNames;
1422 srq.num_entries = *req->numberOfTermsRequested;
1423 srq.term = req->termListAndStartPoint;
1424 srq.stream = assoc->encode;
1425 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1426 attset->oclass != CLASS_RECSYN)
1427 srq.attributeset = VAL_NONE;
1429 srq.attributeset = attset->value;
1430 srq.term_position = req->preferredPositionInResponse ?
1431 *req->preferredPositionInResponse : 1;
1432 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1433 diagrecs_p = diagrecs(assoc, 2, 0);
1434 else if (srs->errcode)
1435 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1441 Z_Entries *list = (Z_Entries *)
1442 odr_malloc (assoc->encode, sizeof(*list));
1444 Z_Entry **tab = (Z_Entry **)
1445 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1447 if (srs->status == BEND_SCAN_PARTIAL)
1448 *scanStatus = Z_Scan_partial_5;
1450 *scanStatus = Z_Scan_success;
1452 ents->entries = tab;
1453 ents->num_entries = srs->num_entries;
1454 res->numberOfEntriesReturned = &ents->num_entries;
1456 ents->u.entries = list;
1457 list->entries = tab;
1458 list->num_entries = srs->num_entries;
1459 res->numberOfEntriesReturned = &list->num_entries;
1461 res->positionOfTerm = &srs->term_position;
1462 for (i = 0; i < srs->num_entries; i++)
1468 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1469 e->which = Z_Entry_termInfo;
1470 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1471 t->suggestedAttributes = 0;
1473 t->alternativeTerm = 0;
1474 t->byAttributes = 0;
1475 t->otherTermInfo = 0;
1476 t->globalOccurrences = &srs->entries[i].occurrences;
1477 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1478 t->term->which = Z_Term_general;
1479 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1481 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1482 strlen(srs->entries[i].term));
1483 memcpy(o->buf, srs->entries[i].term, o->len);
1484 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1485 srs->entries[i].term, srs->entries[i].occurrences);
1492 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1493 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1495 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1496 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1502 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1505 Z_SortRequest *req = reqb->request->u.sortRequest;
1506 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1507 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1509 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1511 logf(LOG_LOG, "Got SortRequest.");
1514 bsrr->num_input_setnames = req->num_inputResultSetNames;
1515 bsrr->input_setnames = req->inputResultSetNames;
1517 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1518 bsrr->input_setnames = req->inputResultSetNames->strings;
1520 bsrr->output_setname = req->sortedResultSetName;
1521 bsrr->sort_sequence = req->sortSequence;
1522 bsrr->stream = assoc->encode;
1524 bsrr->sort_status = Z_SortStatus_failure;
1526 bsrr->errstring = 0;
1528 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1530 res->referenceId = req->referenceId;
1531 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1532 *res->sortStatus = bsrr->sort_status;
1533 res->resultSetStatus = 0;
1536 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1538 res->diagnostics = dr->diagRecs;
1539 res->num_diagnostics = dr->num_diagRecs;
1541 res->diagnostics = dr;
1547 res->num_diagnostics = 0;
1549 res->diagnostics = 0;
1553 apdu->which = Z_APDU_sortResponse;
1554 apdu->u.sortResponse = res;
1558 static void process_close(association *assoc, request *reqb)
1560 Z_Close *req = reqb->request->u.close;
1561 static char *reasons[] =
1568 "securityViolation",
1575 logf(LOG_LOG, "Got Close, reason %s, message %s",
1576 reasons[*req->closeReason], req->diagnosticInformation ?
1577 req->diagnosticInformation : "NULL");
1578 if (assoc->version < 3) /* to make do_force respond with close */
1580 do_close(assoc, Z_Close_finished, "Association terminated by client");
1583 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1587 reqb->len_refid = refid->len;
1588 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1589 memcpy (reqb->refid, refid->buf, refid->len);
1593 reqb->len_refid = 0;
1598 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1600 process_response (a, req, res);
1603 bend_request bend_request_mk (bend_association a)
1605 request *nreq = request_get (&a->outgoing);
1606 nreq->request_mem = nmem_create ();
1610 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1615 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1616 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1617 id->len = id->size = req->len_refid;
1618 memcpy (id->buf, req->refid, req->len_refid);
1622 void bend_request_destroy (bend_request *req)
1624 nmem_destroy((*req)->request_mem);
1625 request_release(*req);
1629 int bend_backend_respond (bend_association a, bend_request req)
1631 return process_request (a, req);
1634 void bend_request_setdata(bend_request r, void *p)
1639 void *bend_request_getdata(bend_request r)
1641 return r->clientData;
1644 /* Chas: Added in from DALI */
1645 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1647 bend_esrequest_rr esrequest;
1649 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1650 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1652 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1654 logf(LOG_DEBUG,"inside Process esRequest");
1656 esrequest.esr = reqb->request->u.extendedServicesRequest;
1657 esrequest.stream = assoc->encode;
1658 esrequest.errcode = 0;
1659 esrequest.errstring = NULL;
1660 esrequest.request = reqb;
1661 esrequest.association = assoc;
1663 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1666 /* If the response is being delayed, return NULL */
1667 if (esrequest.request == NULL)
1670 resp->referenceId = req->referenceId;
1672 if ( esrequest.errcode == 0 )
1674 /* Backend service indicates request will be processed */
1675 logf(LOG_DEBUG,"Request will be processed...Good !");
1676 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1680 /* Backend indicates error, request will not be processed */
1681 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1682 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1684 /* Do something with the members of bend_extendedservice */
1686 logf(LOG_DEBUG,"Send the result apdu");
1691 /* Chas: End of addition from DALI */