2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.82 1998-10-20 14:00:30 quinn
10 * Revision 1.81 1998/10/13 16:12:24 adam
11 * Added support for Surrogate Diagnostics for Scan Term entries.
13 * Revision 1.80 1998/09/02 12:41:53 adam
14 * Added decode stream in bend search structures.
16 * Revision 1.79 1998/08/19 16:10:08 adam
17 * Changed som member names of DeleteResultSetRequest/Response.
19 * Revision 1.78 1998/08/03 10:23:55 adam
20 * Fixed bug regarding Options for Sort.
22 * Revision 1.77 1998/07/20 12:38:42 adam
23 * Implemented delete result set service to server API.
25 * Revision 1.76 1998/05/27 16:57:07 adam
26 * Support for surrogate diagnostic records added for bend_fetch.
28 * Revision 1.75 1998/05/18 10:13:07 adam
29 * Fixed call to es_request handler - extra argument was passed.
31 * Revision 1.74 1998/03/31 15:13:20 adam
32 * Development towards compiled ASN.1.
34 * Revision 1.73 1998/03/31 11:07:45 adam
35 * Furhter work on UNIverse resource report.
36 * Added Extended Services handling in frontend server.
38 * Revision 1.72 1998/02/11 11:53:35 adam
39 * Changed code so that it compiles as C++.
41 * Revision 1.71 1998/02/10 11:03:57 adam
42 * Added support for extended handlers in backend server interface.
44 * Revision 1.70 1998/01/29 13:15:35 adam
45 * Implemented sort for the backend interface.
47 * Revision 1.69 1997/09/30 11:48:12 adam
48 * Fixed bug introduced by previous commit.
50 * Revision 1.68 1997/09/29 13:18:59 adam
51 * Added function, oid_ent_to_oid, to replace the function
52 * oid_getoidbyent, which is not thread safe.
54 * Revision 1.67 1997/09/17 12:10:40 adam
57 * Revision 1.66 1997/09/05 15:26:44 adam
58 * Added ODR encode in search and scen bend request structures.
59 * Fixed a few enums that caused trouble with C++.
61 * Revision 1.65 1997/09/01 08:53:01 adam
62 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
63 * moved a separate directory. MSV5.0 project server.dsp created.
64 * As an option, the server can now operate as an NT service.
66 * Revision 1.64 1997/04/30 08:52:11 quinn
69 * Revision 1.63 1996/10/11 11:57:26 quinn
72 * Revision 1.62 1996/07/06 19:58:35 quinn
73 * System headerfiles gathered in yconfig
75 * Revision 1.61 1996/06/10 08:56:16 quinn
78 * Revision 1.60 1996/05/30 11:03:10 quinn
79 * Fixed NextresultSetPosition bug fixed.
81 * Revision 1.59 1996/05/14 09:26:46 quinn
82 * Added attribute set to scan backend
84 * Revision 1.58 1996/02/20 12:53:04 quinn
87 * Revision 1.57 1996/01/02 08:57:47 quinn
88 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
90 * Revision 1.56 1995/12/14 11:09:57 quinn
93 * Revision 1.55 1995/11/08 17:41:37 quinn
96 * Revision 1.54 1995/11/08 15:11:29 quinn
97 * Log of close transmit.
99 * Revision 1.53 1995/11/01 13:54:58 quinn
102 * Revision 1.52 1995/11/01 12:19:13 quinn
103 * Second attempt to fix same bug.
105 * Revision 1.50 1995/10/25 16:58:32 quinn
108 * Revision 1.49 1995/10/16 13:51:53 quinn
109 * Changes to provide Especs to the backend.
111 * Revision 1.48 1995/10/06 08:51:20 quinn
112 * Added Write-buffer.
114 * Revision 1.47 1995/08/29 14:24:16 quinn
115 * Added second half of close-handshake
117 * Revision 1.46 1995/08/29 11:17:58 quinn
118 * Added code to receive close
120 * Revision 1.45 1995/08/21 09:11:00 quinn
121 * Smallish fixes to suppport new formats.
123 * Revision 1.44 1995/08/17 12:45:25 quinn
124 * Fixed minor problems with GRS-1. Added support in c&s.
126 * Revision 1.43 1995/08/15 12:00:31 quinn
129 * Revision 1.42 1995/08/15 11:16:50 quinn
131 * Revision 1.41 1995/08/02 10:23:06 quinn
134 * Revision 1.40 1995/07/31 14:34:26 quinn
135 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
137 * Revision 1.39 1995/06/27 13:21:00 quinn
140 * Revision 1.38 1995/06/19 12:39:11 quinn
141 * Fixed bug in timeout code. Added BER dumper.
143 * Revision 1.37 1995/06/16 13:16:14 quinn
144 * Fixed Defaultdiagformat.
146 * Revision 1.36 1995/06/16 10:31:36 quinn
147 * Added session timeout.
149 * Revision 1.35 1995/06/15 07:45:14 quinn
152 * Revision 1.34 1995/06/14 15:26:46 quinn
153 * *** empty log message ***
155 * Revision 1.33 1995/06/06 14:57:05 quinn
156 * Better diagnostics.
158 * Revision 1.32 1995/06/06 08:41:44 quinn
159 * Better diagnostics.
161 * Revision 1.31 1995/06/06 08:15:37 quinn
164 * Revision 1.30 1995/06/05 10:53:32 quinn
165 * Added a better SCAN.
167 * Revision 1.29 1995/06/01 11:25:03 quinn
170 * Revision 1.28 1995/06/01 11:21:01 quinn
171 * Attempting to fix a bug in pack-records. replaced break with continue
172 * for large records, according to standard.
174 * Revision 1.27 1995/05/29 08:12:06 quinn
177 * Revision 1.26 1995/05/18 13:02:12 quinn
180 * Revision 1.25 1995/05/17 08:42:26 quinn
181 * Transfer auth info to backend. Allow backend to reject init gracefully.
183 * Revision 1.24 1995/05/16 08:51:04 quinn
184 * License, documentation, and memory fixes
186 * Revision 1.23 1995/05/15 13:25:10 quinn
189 * Revision 1.22 1995/05/15 11:56:39 quinn
190 * Asynchronous facilities. Restructuring of seshigh code.
192 * Revision 1.21 1995/05/02 08:53:19 quinn
193 * Trying in vain to fix comm with ISODE
195 * Revision 1.20 1995/04/20 15:13:00 quinn
198 * Revision 1.19 1995/04/18 08:15:34 quinn
199 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
200 * neater. We'll make the same change for decoding one day.
202 * Revision 1.18 1995/04/17 11:28:25 quinn
205 * Revision 1.17 1995/04/10 10:23:36 quinn
206 * Some work to add scan and other things.
208 * Revision 1.16 1995/03/31 09:18:55 quinn
211 * Revision 1.15 1995/03/30 14:03:23 quinn
212 * Added RFC1006 as separate library
214 * Revision 1.14 1995/03/30 12:18:17 quinn
217 * Revision 1.13 1995/03/30 09:09:24 quinn
218 * Added state-handle and some support for asynchronous activities.
220 * Revision 1.12 1995/03/29 15:40:16 quinn
221 * Ongoing work. Statserv is now dynamic by default
223 * Revision 1.11 1995/03/28 09:16:21 quinn
224 * Added record packing to the search request
226 * Revision 1.10 1995/03/27 08:34:24 quinn
227 * Added dynamic server functionality.
228 * Released bindings to session.c (is now redundant)
230 * Revision 1.9 1995/03/22 15:01:26 quinn
231 * Adjusting record packing.
233 * Revision 1.8 1995/03/22 10:13:21 quinn
234 * Working on record packer
236 * Revision 1.7 1995/03/21 15:53:31 quinn
239 * Revision 1.6 1995/03/21 12:30:09 quinn
240 * Beginning to add support for record packing.
242 * Revision 1.5 1995/03/17 10:44:13 quinn
243 * Added catch of null-string in makediagrec
245 * Revision 1.4 1995/03/17 10:18:08 quinn
246 * Added memory management.
248 * Revision 1.3 1995/03/16 17:42:39 quinn
251 * Revision 1.2 1995/03/16 13:29:01 quinn
252 * Partitioned server.
254 * Revision 1.1 1995/03/15 16:02:10 quinn
255 * Modded session.c to seshigh.c
260 * Frontend server logic.
262 * This code receives incoming APDUs, and handles client requests by means
263 * of the backend API.
265 * Some of the code is getting quite involved, compared to simpler servers -
266 * primarily because it is asynchronous both in the communication with
267 * the user and the backend. We think the complexity will pay off in
268 * the form of greater flexibility when more asynchronous facilities
271 * Memory management has become somewhat involved. In the simple case, where
272 * only one PDU is pending at a time, it will simply reuse the same memory,
273 * once it has found its working size. When we enable multiple concurrent
274 * operations, perhaps even with multiple parallel calls to the backend, it
275 * will maintain a pool of buffers for encoding and decoding, trying to
276 * minimize memory allocation/deallocation during normal operation.
278 * TODOs include (and will be done in order of public interest):
280 * Support for EXPLAIN - provide simple meta-database system.
281 * Support for access control.
282 * Support for resource control.
283 * Support for extended services - primarily Item Order.
284 * Rest of Z39.50-1994
299 #include <comstack.h>
305 #include <statserv.h>
309 static int process_request(association *assoc, request *req);
310 void backend_response(IOCHAN i, int event);
311 static int process_response(association *assoc, request *req, Z_APDU *res);
312 static Z_APDU *process_initRequest(association *assoc, request *reqb);
313 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
315 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
316 bend_search_rr *bsrr, int *fd);
317 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
319 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
320 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
321 static void process_close(association *assoc, request *reqb);
322 void save_referenceId (request *reqb, Z_ReferenceId *refid);
323 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
326 static FILE *apduf = 0; /* for use in static mode */
327 static statserv_options_block *control_block = 0;
329 /* Chas: Added in from DALI */
330 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
331 /* Chas: End of addition from DALI */
334 * Create and initialize a new association-handle.
335 * channel : iochannel for the current line.
336 * link : communications channel.
337 * Returns: 0 or a new association handle.
339 association *create_association(IOCHAN channel, COMSTACK link)
344 control_block = statserv_getcontrol();
345 if (!(anew = (association *)xmalloc(sizeof(*anew))))
347 anew->client_chan = channel;
348 anew->client_link = link;
349 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
350 !(anew->encode = odr_createmem(ODR_ENCODE)))
352 if (*control_block->apdufile)
357 strcpy(filename, control_block->apdufile);
358 if (!(anew->print = odr_createmem(ODR_PRINT)))
360 if (*control_block->apdufile != '-')
362 strcpy(filename, control_block->apdufile);
363 if (!control_block->dynamic)
367 if (!(apduf = fopen(filename, "w")))
369 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
372 setvbuf(apduf, 0, _IONBF, 0);
378 sprintf(filename + strlen(filename), ".%d", getpid());
379 if (!(f = fopen(filename, "w")))
381 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
384 setvbuf(f, 0, _IONBF, 0);
386 odr_setprint(anew->print, f);
391 anew->input_buffer = 0;
392 anew->input_buffer_len = 0;
394 anew->state = ASSOC_NEW;
395 request_initq(&anew->incoming);
396 request_initq(&anew->outgoing);
397 anew->proto = cs_getproto(link);
402 * Free association and release resources.
404 void destroy_association(association *h)
406 odr_destroy(h->decode);
407 odr_destroy(h->encode);
409 odr_destroy(h->print);
411 xfree(h->input_buffer);
413 bend_close(h->backend);
414 while (request_deq(&h->incoming));
415 while (request_deq(&h->outgoing));
416 request_delq(&h->incoming);
417 request_delq(&h->outgoing);
421 static void do_close_req(association *a, int reason, char *message,
425 Z_Close *cls = zget_Close(a->encode);
427 /* Purge request queue */
428 while (request_deq(&a->incoming));
429 while (request_deq(&a->outgoing));
432 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
433 reason, message ? message : "none");
434 apdu.which = Z_APDU_close;
436 *cls->closeReason = reason;
437 cls->diagnosticInformation = message;
438 process_response(a, req, &apdu);
439 iochan_settimeout(a->client_chan, 60);
443 logf(LOG_DEBUG, "v2 client. No Close PDU");
444 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
446 a->state = ASSOC_DEAD;
449 static void do_close(association *a, int reason, char *message)
451 do_close_req (a, reason, message, request_get(&a->outgoing));
455 * This is where PDUs from the client are read and the further
456 * processing is initiated. Flow of control moves down through the
457 * various process_* functions below, until the encoded result comes back up
458 * to the output handler in here.
460 * h : the I/O channel that has an outstanding event.
461 * event : the current outstanding event.
463 void ir_session(IOCHAN h, int event)
466 association *assoc = (association *)iochan_getdata(h);
467 COMSTACK conn = assoc->client_link;
470 assert(h && conn && assoc);
471 if (event == EVENT_TIMEOUT)
473 if (assoc->state != ASSOC_UP)
475 logf(LOG_LOG, "Final timeout - closing connection.");
477 destroy_association(assoc);
482 logf(LOG_LOG, "Session idle too long. Sending close.");
483 do_close(assoc, Z_Close_lackOfActivity, 0);
487 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
489 if (event & EVENT_INPUT)
491 logf(LOG_DEBUG, "ir_session (input)");
492 assert(assoc && conn);
493 /* We aren't speaking to this fellow */
494 if (assoc->state == ASSOC_DEAD)
496 logf(LOG_LOG, "Closed connection after reject");
498 destroy_association(assoc);
502 if ((res = cs_get(conn, &assoc->input_buffer,
503 &assoc->input_buffer_len)) <= 0)
505 logf(LOG_LOG, "Connection closed by client");
507 destroy_association(assoc);
511 else if (res == 1) /* incomplete read - wait for more */
513 if (cs_more(conn)) /* more stuff - call us again later, please */
514 iochan_setevent(h, EVENT_INPUT);
516 /* we got a complete PDU. Let's decode it */
517 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
518 req = request_get(&assoc->incoming); /* get a new request structure */
519 odr_reset(assoc->decode);
520 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
521 if (!z_APDU(assoc->decode, &req->request, 0))
523 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
524 odr_errmsg(odr_geterror(assoc->decode)),
525 odr_offset(assoc->decode));
526 logf(LOG_LOG, "PDU dump:");
527 odr_dumpBER(log_file(), assoc->input_buffer, res);
528 do_close(assoc, Z_Close_protocolError, "Malformed package");
531 req->request_mem = odr_extract_mem(assoc->decode);
532 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
534 logf(LOG_WARN, "ODR print error: %s",
535 odr_errmsg(odr_geterror(assoc->print)));
536 odr_reset(assoc->print);
538 request_enq(&assoc->incoming, req);
541 /* can we do something yet? */
542 req = request_head(&assoc->incoming);
543 if (req->state == REQUEST_IDLE)
545 request_deq(&assoc->incoming);
546 if (process_request(assoc, req) < 0)
547 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
551 if (event & EVENT_OUTPUT)
553 request *req = request_head(&assoc->outgoing);
555 logf(LOG_DEBUG, "ir_session (output)");
556 req->state = REQUEST_PENDING;
557 switch (res = cs_put(conn, req->response, req->len_response))
560 logf(LOG_LOG, "Connection closed by client");
562 destroy_association(assoc);
565 case 0: /* all sent - release the request structure */
566 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
567 nmem_destroy(req->request_mem);
568 request_deq(&assoc->outgoing);
569 request_release(req);
570 if (!request_head(&assoc->outgoing))
571 iochan_clearflag(h, EVENT_OUTPUT);
573 /* value of 1 -- partial send -- is simply ignored */
576 if (event & EVENT_EXCEPT)
578 logf(LOG_DEBUG, "ir_session (exception)");
580 destroy_association(assoc);
586 * Initiate request processing.
588 static int process_request(association *assoc, request *req)
594 assert(req && req->state == REQUEST_IDLE);
595 switch (req->request->which)
597 case Z_APDU_initRequest:
598 res = process_initRequest(assoc, req); break;
599 case Z_APDU_searchRequest:
600 res = process_searchRequest(assoc, req, &fd); break;
601 case Z_APDU_presentRequest:
602 res = process_presentRequest(assoc, req, &fd); break;
603 case Z_APDU_scanRequest:
604 res = process_scanRequest(assoc, req, &fd); break;
605 case Z_APDU_extendedServicesRequest:
606 if (assoc->bend_esrequest)
607 res = process_ESRequest(assoc, req, &fd);
610 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
614 case Z_APDU_sortRequest:
615 if (assoc->bend_sort)
616 res = process_sortRequest(assoc, req, &fd);
619 logf(LOG_WARN, "Cannot handle SORT APDU");
624 process_close(assoc, req); return 0;
625 case Z_APDU_deleteResultSetRequest:
626 if (assoc->bend_delete)
627 res = process_deleteRequest(assoc, req, &fd);
630 logf (LOG_WARN, "Cannot handle Delete APDU");
635 logf(LOG_WARN, "Bad APDU received");
640 logf(LOG_DEBUG, " result immediately available");
641 retval = process_response(assoc, req, res);
645 logf(LOG_DEBUG, " result unavailble");
648 else /* no result yet - one will be provided later */
652 /* Set up an I/O handler for the fd supplied by the backend */
654 logf(LOG_DEBUG, " establishing handler for result");
655 req->state = REQUEST_PENDING;
656 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
658 iochan_setdata(chan, assoc);
665 * Handle message from the backend.
667 void backend_response(IOCHAN i, int event)
669 association *assoc = (association *)iochan_getdata(i);
670 request *req = request_head(&assoc->incoming);
674 logf(LOG_DEBUG, "backend_response");
675 assert(assoc && req && req->state != REQUEST_IDLE);
676 /* determine what it is we're waiting for */
677 switch (req->request->which)
679 case Z_APDU_searchRequest:
680 res = response_searchRequest(assoc, req, 0, &fd); break;
682 case Z_APDU_presentRequest:
683 res = response_presentRequest(assoc, req, 0, &fd); break;
684 case Z_APDU_scanRequest:
685 res = response_scanRequest(assoc, req, 0, &fd); break;
688 logf(LOG_WARN, "Serious programmer's lapse or bug");
691 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
693 logf(LOG_LOG, "Fatal error when talking to backend");
694 do_close(assoc, Z_Close_systemProblem, 0);
698 else if (!res) /* no result yet - try again later */
700 logf(LOG_DEBUG, " no result yet");
701 iochan_setfd(i, fd); /* in case fd has changed */
706 * Encode response, and transfer the request structure to the outgoing queue.
708 static int process_response(association *assoc, request *req, Z_APDU *res)
710 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
711 if (!z_APDU(assoc->encode, &res, 0))
713 logf(LOG_WARN, "ODR error when encoding response: %s",
714 odr_errmsg(odr_geterror(assoc->decode)));
715 odr_reset(assoc->encode);
718 req->response = odr_getbuf(assoc->encode, &req->len_response,
719 &req->size_response);
720 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
721 if (assoc->print && !z_APDU(assoc->print, &res, 0))
723 logf(LOG_WARN, "ODR print error: %s",
724 odr_errmsg(odr_geterror(assoc->print)));
725 odr_reset(assoc->print);
727 odr_reset(assoc->encode);
728 req->state = REQUEST_IDLE;
729 request_enq(&assoc->outgoing, req);
730 /* turn the work over to the ir_session handler */
731 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
732 /* Is there more work to be done? give that to the input handler too */
734 if (request_head(&assoc->incoming))
736 logf (LOG_DEBUG, "more work to be done");
737 iochan_setevent(assoc->client_chan, EVENT_WORK);
744 * Handle init request.
745 * At the moment, we don't check the options
746 * anywhere else in the code - we just try not to do anything that would
747 * break a naive client. We'll toss 'em into the association block when
748 * we need them there.
750 static Z_APDU *process_initRequest(association *assoc, request *reqb)
752 Z_InitRequest *req = reqb->request->u.initRequest;
753 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
754 Z_InitResponse *resp = apdu->u.initResponse;
755 bend_initrequest binitreq;
756 bend_initresult *binitres;
759 logf(LOG_LOG, "Got initRequest");
760 if (req->implementationId)
761 logf(LOG_LOG, "Id: %s", req->implementationId);
762 if (req->implementationName)
763 logf(LOG_LOG, "Name: %s", req->implementationName);
764 if (req->implementationVersion)
765 logf(LOG_LOG, "Version: %s", req->implementationVersion);
767 binitreq.stream = assoc->encode;
768 binitreq.configname = "default-config";
769 binitreq.auth = req->idAuthentication;
770 binitreq.bend_sort = NULL;
771 binitreq.bend_search = NULL;
772 binitreq.bend_present = NULL;
773 binitreq.bend_esrequest = NULL;
774 binitreq.bend_delete = NULL;
775 if (!(binitres = bend_init(&binitreq)))
777 logf(LOG_WARN, "Bad response from backend.");
781 assoc->backend = binitres->handle;
782 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
783 logf (LOG_DEBUG, "Sort handler installed");
784 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
785 logf (LOG_DEBUG, "Search handler installed");
786 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
787 logf (LOG_DEBUG, "Present handler installed");
788 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
789 logf (LOG_DEBUG, "ESRequest handler installed");
790 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
791 logf (LOG_DEBUG, "Delete handler installed");
793 resp->referenceId = req->referenceId;
795 /* let's tell the client what we can do */
796 if (ODR_MASK_GET(req->options, Z_Options_search))
798 ODR_MASK_SET(resp->options, Z_Options_search);
799 strcat(options, "srch");
801 if (ODR_MASK_GET(req->options, Z_Options_present))
803 ODR_MASK_SET(resp->options, Z_Options_present);
804 strcat(options, " prst");
806 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
808 ODR_MASK_SET(resp->options, Z_Options_delSet);
809 strcat(options, " del");
811 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
812 binitreq.bend_esrequest)
814 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
815 strcat (options, " extendedServices");
817 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
819 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
820 strcat(options, " namedresults");
822 if (ODR_MASK_GET(req->options, Z_Options_scan))
824 ODR_MASK_SET(resp->options, Z_Options_scan);
825 strcat(options, " scan");
827 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
829 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
830 strcat(options, " concurop");
832 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
834 ODR_MASK_SET(resp->options, Z_Options_sort);
835 strcat(options, " sort");
837 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
839 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
840 assoc->version = 2; /* 1 & 2 are equivalent */
842 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
844 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
847 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
849 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
852 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
853 assoc->maximumRecordSize = *req->maximumRecordSize;
854 if (assoc->maximumRecordSize > control_block->maxrecordsize)
855 assoc->maximumRecordSize = control_block->maxrecordsize;
856 assoc->preferredMessageSize = *req->preferredMessageSize;
857 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
858 assoc->preferredMessageSize = assoc->maximumRecordSize;
859 resp->preferredMessageSize = &assoc->preferredMessageSize;
860 resp->maximumRecordSize = &assoc->maximumRecordSize;
861 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
862 if (binitres->errcode)
864 logf(LOG_LOG, "Connection rejected by backend.");
866 assoc->state = ASSOC_DEAD;
869 assoc->state = ASSOC_UP;
874 * These functions should be merged.
877 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
880 dr->which = Z_DefaultDiagFormat_v2Addinfo;
881 dr->u.v2Addinfo = addinfo ? addinfo : "";
883 dr->which = Z_DiagForm_v2AddInfo;
884 dr->addinfo = addinfo ? addinfo : "";
889 * nonsurrogate diagnostic record.
891 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
894 Z_Records *rec = (Z_Records *)
895 odr_malloc (assoc->encode, sizeof(*rec));
898 odr_malloc (assoc->encode, sizeof(*err));
899 Z_DiagRec *drec = (Z_DiagRec *)
900 odr_malloc (assoc->encode, sizeof(*drec));
901 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
902 odr_malloc (assoc->encode, sizeof(*dr));
904 bib1.proto = assoc->proto;
905 bib1.oclass = CLASS_DIAGSET;
906 bib1.value = VAL_BIB1;
908 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
911 rec->which = Z_Records_NSD;
913 rec->u.nonSurrogateDiagnostic = dr;
916 rec->u.nonSurrogateDiagnostic = drec;
917 drec->which = Z_DiagRec_defaultFormat;
918 drec->u.defaultFormat = dr;
920 rec->u.nonSurrogateDiagnostic = dr;
923 dr->diagnosticSetId = odr_oiddup (assoc->encode,
924 oid_ent_to_oid(&bib1, oid));
926 set_addinfo (dr, addinfo);
931 * surrogate diagnostic.
933 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
934 int error, char *addinfo)
937 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
938 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
940 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
941 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
943 bib1.proto = assoc->proto;
944 bib1.oclass = CLASS_DIAGSET;
945 bib1.value = VAL_BIB1;
947 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
949 rec->databaseName = dbname;
950 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
951 rec->u.surrogateDiagnostic = drec;
952 drec->which = Z_DiagRec_defaultFormat;
953 drec->u.defaultFormat = dr;
954 dr->diagnosticSetId = odr_oiddup (assoc->encode,
955 oid_ent_to_oid(&bib1, oid));
957 set_addinfo (dr, addinfo);
963 * multiple nonsurrogate diagnostics.
965 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
968 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
969 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
971 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
972 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
973 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
975 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
976 bib1.proto = assoc->proto;
977 bib1.oclass = CLASS_DIAGSET;
978 bib1.value = VAL_BIB1;
981 recs->num_diagRecs = 1;
982 recs->diagRecs = recp;
984 drec->which = Z_DiagRec_defaultFormat;
985 drec->u.defaultFormat = rec;
987 rec->diagnosticSetId = odr_oiddup (assoc->encode,
988 oid_ent_to_oid(&bib1, oid));
989 rec->condition = err;
992 rec->which = Z_DefaultDiagFormat_v2Addinfo;
993 rec->u.v2Addinfo = addinfo ? addinfo : "";
995 rec->which = Z_DiagForm_v2AddInfo;
996 rec->addinfo = addinfo ? addinfo : "";
1001 static Z_Records *pack_records(association *a, char *setname, int start,
1002 int *num, Z_RecordComposition *comp,
1003 int *next, int *pres, oid_value format)
1006 int recno, total_length = 0, toget = *num, dumped_records = 0;
1007 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
1008 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
1009 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
1012 records->which = Z_Records_DBOSD;
1013 records->u.databaseOrSurDiagnostics = reclist;
1014 reclist->num_records = 0;
1015 reclist->records = list;
1016 *pres = Z_PRES_SUCCESS;
1020 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
1021 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1022 a->maximumRecordSize);
1023 for (recno = start; reclist->num_records < toget; recno++)
1025 bend_fetchrequest freq;
1026 bend_fetchresult *fres;
1027 Z_NamePlusRecord *thisrec;
1028 Z_DatabaseRecord *thisext;
1029 int this_length = 0;
1032 * we get the number of bytes allocated on the stream before any
1033 * allocation done by the backend - this should give us a reasonable
1034 * idea of the total size of the data so far.
1036 total_length = odr_total(a->encode) - dumped_records;
1037 freq.setname = setname;
1038 freq.number = recno;
1040 freq.format = format;
1041 freq.stream = a->encode;
1042 freq.surrogate_flag = 0;
1043 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1045 *pres = Z_PRES_FAILURE;
1046 return diagrec(a, 2, "Backend interface problem");
1048 /* backend should be able to signal whether error is system-wide
1049 or only pertaining to current record */
1052 if (!freq.surrogate_flag)
1054 *pres = Z_PRES_FAILURE;
1055 return diagrec(a, fres->errcode, fres->errstring);
1057 reclist->records[reclist->num_records] =
1058 surrogatediagrec(a, fres->basename, fres->errcode,
1060 reclist->num_records++;
1061 *next = fres->last_in_set ? 0 : recno + 1;
1065 this_length = fres->len;
1067 this_length = odr_total(a->encode) - total_length;
1068 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1069 this_length, total_length);
1070 if (this_length + total_length > a->preferredMessageSize)
1072 /* record is small enough, really */
1073 if (this_length <= a->preferredMessageSize)
1075 logf(LOG_DEBUG, " Dropped last normal-sized record");
1076 *pres = Z_PRES_PARTIAL_2;
1079 /* record can only be fetched by itself */
1080 if (this_length < a->maximumRecordSize)
1082 logf(LOG_DEBUG, " Record > prefmsgsz");
1085 logf(LOG_DEBUG, " Dropped it");
1086 reclist->records[reclist->num_records] =
1087 surrogatediagrec(a, fres->basename, 16, 0);
1088 reclist->num_records++;
1089 *next = fres->last_in_set ? 0 : recno + 1;
1090 dumped_records += this_length;
1094 else /* too big entirely */
1096 logf(LOG_DEBUG, "Record > maxrcdsz");
1097 reclist->records[reclist->num_records] =
1098 surrogatediagrec(a, fres->basename, 17, 0);
1099 reclist->num_records++;
1100 *next = fres->last_in_set ? 0 : recno + 1;
1101 dumped_records += this_length;
1106 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1108 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1109 strlen(fres->basename) + 1)))
1111 strcpy(thisrec->databaseName, fres->basename);
1112 thisrec->which = Z_NamePlusRecord_databaseRecord;
1113 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1114 sizeof(Z_DatabaseRecord))))
1116 recform.proto = a->proto;
1117 recform.oclass = CLASS_RECSYN;
1118 recform.value = fres->format;
1119 thisext->direct_reference = odr_oiddup(a->encode,
1120 oid_ent_to_oid(&recform, oid));
1121 thisext->indirect_reference = 0;
1122 thisext->descriptor = 0;
1123 if (fres->len < 0) /* Structured data */
1125 switch (fres->format)
1127 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1128 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1129 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1131 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1132 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1135 logf(LOG_FATAL, "Unknown structured format from backend.");
1140 * We cheat on the pointers here. Obviously, the record field
1141 * of the backend-fetch structure should have been a union for
1142 * correctness, but we're stuck with this for backwards
1145 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1147 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1150 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1152 memcpy(sutrs, fres->record, fres->len);
1153 sutrs[fres->len] = '\0';
1155 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1157 thisext->which = Z_External_sutrs;
1158 thisext->u.sutrs = sutrs;
1159 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1160 sutrs->len = sutrs->size = fres->len;
1161 memcpy(sutrs->buf, fres->record, fres->len);
1164 else /* octet-aligned record. */
1166 thisext->which = Z_External_octet;
1167 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1170 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1173 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1174 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1177 reclist->records[reclist->num_records] = thisrec;
1178 reclist->num_records++;
1179 *next = fres->last_in_set ? 0 : recno + 1;
1181 *num = reclist->num_records;
1185 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1188 Z_SearchRequest *req = reqb->request->u.searchRequest;
1189 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1191 logf(LOG_LOG, "Got SearchRequest.");
1192 save_referenceId (reqb, req->referenceId);
1193 /* store ref id in request */
1195 bsrr->request = reqb;
1196 bsrr->association = assoc;
1197 if (assoc->bend_search)
1199 bsrr->setname = req->resultSetName;
1200 bsrr->replace_set = *req->replaceIndicator;
1201 bsrr->num_bases = req->num_databaseNames;
1202 bsrr->basenames = req->databaseNames;
1203 bsrr->query = req->query;
1204 bsrr->stream = assoc->encode;
1205 bsrr->decode = assoc->decode;
1208 bsrr->errstring = NULL;
1209 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1215 bend_searchrequest bsrq;
1216 bend_searchresult *bsrt;
1218 bsrq.setname = req->resultSetName;
1219 bsrq.replace_set = *req->replaceIndicator;
1220 bsrq.num_bases = req->num_databaseNames;
1221 bsrq.basenames = req->databaseNames;
1222 bsrq.query = req->query;
1223 bsrq.stream = assoc->encode;
1224 bsrq.decode = assoc->decode;
1225 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1227 bsrr->hits = bsrt->hits;
1228 bsrr->errcode = bsrt->errcode;
1229 bsrr->errstring = bsrt->errstring;
1231 return response_searchRequest(assoc, reqb, bsrr, fd);
1234 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1237 * Prepare a searchresponse based on the backend results. We probably want
1238 * to look at making the fetching of records nonblocking as well, but
1239 * so far, we'll keep things simple.
1240 * If bsrt is null, that means we're called in response to a communications
1241 * event, and we'll have to get the response for ourselves.
1243 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1244 bend_search_rr *bsrt, int *fd)
1246 Z_SearchRequest *req = reqb->request->u.searchRequest;
1247 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1248 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1249 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1250 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1251 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1252 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1259 apdu->which = Z_APDU_searchResponse;
1260 apdu->u.searchResponse = resp;
1261 resp->referenceId = req->referenceId;
1262 resp->additionalSearchInfo = 0;
1263 resp->otherInfo = 0;
1265 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1267 logf(LOG_FATAL, "Bad result from backend");
1270 else if (bsrt->errcode)
1272 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1273 resp->resultCount = nulint;
1274 resp->numberOfRecordsReturned = nulint;
1275 resp->nextResultSetPosition = nulint;
1276 resp->searchStatus = nulint;
1277 resp->resultSetStatus = none;
1278 resp->presentStatus = 0;
1282 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1283 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1284 Z_RecordComposition comp, *compp = 0;
1289 resp->resultCount = &bsrt->hits;
1291 comp.which = Z_RecordComp_simple;
1292 /* how many records does the user agent want, then? */
1293 if (bsrt->hits <= *req->smallSetUpperBound)
1295 *toget = bsrt->hits;
1296 if ((comp.u.simple = req->smallSetElementSetNames))
1299 else if (bsrt->hits < *req->largeSetLowerBound)
1301 *toget = *req->mediumSetPresentNumber;
1302 if (*toget > bsrt->hits)
1303 *toget = bsrt->hits;
1304 if ((comp.u.simple = req->mediumSetElementSetNames))
1310 if (*toget && !resp->records)
1315 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1316 prefformat->oclass != CLASS_RECSYN)
1319 form = prefformat->value;
1320 resp->records = pack_records(assoc, req->resultSetName, 1,
1321 toget, compp, next, presst, form);
1324 resp->numberOfRecordsReturned = toget;
1325 resp->nextResultSetPosition = next;
1326 resp->searchStatus = sr;
1327 resp->resultSetStatus = 0;
1328 resp->presentStatus = presst;
1332 if (*resp->resultCount)
1334 resp->numberOfRecordsReturned = nulint;
1335 resp->nextResultSetPosition = next;
1336 resp->searchStatus = sr;
1337 resp->resultSetStatus = 0;
1338 resp->presentStatus = 0;
1345 * Maybe we got a little over-friendly when we designed bend_fetch to
1346 * get only one record at a time. Some backends can optimise multiple-record
1347 * fetches, and at any rate, there is some overhead involved in
1348 * all that selecting and hopping around. Problem is, of course, that the
1349 * frontend can't know ahead of time how many records it'll need to
1350 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1351 * is downright lousy as a bulk data transfer protocol.
1353 * To start with, we'll do the fetching of records from the backend
1354 * in one operation: To save some trips in and out of the event-handler,
1355 * and to simplify the interface to pack_records. At any rate, asynch
1356 * operation is more fun in operations that have an unpredictable execution
1357 * speed - which is normally more true for search than for present.
1359 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1362 Z_PresentRequest *req = reqb->request->u.presentRequest;
1366 Z_PresentResponse *resp;
1371 logf(LOG_LOG, "Got PresentRequest.");
1373 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1374 prefformat->oclass != CLASS_RECSYN)
1377 form = prefformat->value;
1378 if (assoc->bend_present)
1380 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1381 bprr->setname = req->resultSetId;
1382 bprr->start = *req->resultSetStartPoint;
1383 bprr->number = *req->numberOfRecordsRequested;
1384 bprr->format = form;
1385 bprr->comp = req->recordComposition;
1386 bprr->stream = assoc->encode;
1387 bprr->request = reqb;
1388 bprr->association = assoc;
1390 bprr->errstring = NULL;
1391 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1396 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1397 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1398 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1399 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1400 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1403 *num = *req->numberOfRecordsRequested;
1405 apdu->which = Z_APDU_presentResponse;
1406 apdu->u.presentResponse = resp;
1407 resp->referenceId = req->referenceId;
1408 resp->otherInfo = 0;
1411 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1412 num, req->recordComposition, next, presst, form);
1415 resp->numberOfRecordsReturned = num;
1416 resp->presentStatus = presst;
1417 resp->nextResultSetPosition = next;
1423 * Scan was implemented rather in a hurry, and with support for only the basic
1424 * elements of the service in the backend API. Suggestions are welcome.
1426 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1428 Z_ScanRequest *req = reqb->request->u.scanRequest;
1429 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1430 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1431 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1432 int *numberOfEntriesReturned =
1433 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1434 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1435 Z_DiagRecs *diagrecs_p = NULL;
1437 bend_scanrequest srq;
1438 bend_scanresult *srs;
1441 logf(LOG_LOG, "Got ScanRequest");
1442 *scanStatus = Z_Scan_failure;
1443 *numberOfEntriesReturned = 0;
1445 apdu->which = Z_APDU_scanResponse;
1446 apdu->u.scanResponse = res;
1447 res->referenceId = req->referenceId;
1449 res->scanStatus = scanStatus;
1450 res->numberOfEntriesReturned = numberOfEntriesReturned;
1451 res->positionOfTerm = 0;
1452 res->entries = ents;
1453 ents->num_entries = 0;
1454 ents->entries = NULL;
1455 ents->num_nonsurrogateDiagnostics = 0;
1456 ents->nonsurrogateDiagnostics = NULL;
1457 res->attributeSet = 0;
1460 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1461 attent->oclass != CLASS_ATTSET
1462 || attent->value != VAL_BIB1))
1463 diagrecs_p = diagrecs(assoc, 121, 0);
1464 else if (req->stepSize && *req->stepSize > 0)
1465 diagrecs_p = diagrecs(assoc, 205, 0);
1468 if (req->termListAndStartPoint->term->which == Z_Term_general)
1469 logf(LOG_DEBUG, " term: '%.*s'",
1470 req->termListAndStartPoint->term->u.general->len,
1471 req->termListAndStartPoint->term->u.general->buf);
1472 srq.num_bases = req->num_databaseNames;
1473 srq.basenames = req->databaseNames;
1474 srq.num_entries = *req->numberOfTermsRequested;
1475 srq.term = req->termListAndStartPoint;
1476 srq.stream = assoc->encode;
1477 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1478 attset->oclass != CLASS_RECSYN)
1479 srq.attributeset = VAL_NONE;
1481 srq.attributeset = attset->value;
1482 srq.term_position = req->preferredPositionInResponse ?
1483 *req->preferredPositionInResponse : 1;
1484 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1485 diagrecs_p = diagrecs(assoc, 2, 0);
1486 else if (srs->errcode)
1487 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1491 Z_Entry **tab = (Z_Entry **)
1492 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1494 if (srs->status == BEND_SCAN_PARTIAL)
1495 *scanStatus = Z_Scan_partial_5;
1497 *scanStatus = Z_Scan_success;
1498 ents->entries = tab;
1499 ents->num_entries = srs->num_entries;
1500 res->numberOfEntriesReturned = &ents->num_entries;
1501 res->positionOfTerm = &srs->term_position;
1502 for (i = 0; i < srs->num_entries; i++)
1508 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1509 if (srs->entries[i].occurrences >= 0)
1511 e->which = Z_Entry_termInfo;
1512 e->u.termInfo = t = (Z_TermInfo *)
1513 odr_malloc(assoc->encode, sizeof(*t));
1514 t->suggestedAttributes = 0;
1516 t->alternativeTerm = 0;
1517 t->byAttributes = 0;
1518 t->otherTermInfo = 0;
1519 t->globalOccurrences = &srs->entries[i].occurrences;
1520 t->term = (Z_Term *)
1521 odr_malloc(assoc->encode, sizeof(*t->term));
1522 t->term->which = Z_Term_general;
1523 t->term->u.general = o =
1524 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1525 o->buf = (unsigned char *)
1526 odr_malloc(assoc->encode, o->len = o->size =
1527 strlen(srs->entries[i].term));
1528 memcpy(o->buf, srs->entries[i].term, o->len);
1529 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1530 srs->entries[i].term, srs->entries[i].occurrences);
1534 Z_Records *zrecords = diagrec (assoc,
1535 srs->entries[i].errcode,
1536 srs->entries[i].errstring);
1537 logf(LOG_DEBUG, " term sd code=%d addinfo=%s",
1538 srs->entries[i].errcode,
1539 (srs->entries[i].errstring?srs->entries[i].errstring :
1541 assert (zrecords->which == Z_Records_NSD);
1542 e->which = Z_Entry_surrogateDiagnostic;
1543 e->u.surrogateDiagnostic =
1544 zrecords->u.nonSurrogateDiagnostic;
1551 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1552 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1557 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1560 Z_SortRequest *req = reqb->request->u.sortRequest;
1561 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1562 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1564 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1566 logf(LOG_LOG, "Got SortRequest.");
1569 bsrr->num_input_setnames = req->num_inputResultSetNames;
1570 bsrr->input_setnames = req->inputResultSetNames;
1572 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1573 bsrr->input_setnames = req->inputResultSetNames->strings;
1575 bsrr->output_setname = req->sortedResultSetName;
1576 bsrr->sort_sequence = req->sortSequence;
1577 bsrr->stream = assoc->encode;
1579 bsrr->sort_status = Z_SortStatus_failure;
1581 bsrr->errstring = 0;
1583 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1585 res->referenceId = req->referenceId;
1586 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1587 *res->sortStatus = bsrr->sort_status;
1588 res->resultSetStatus = 0;
1591 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1593 res->diagnostics = dr->diagRecs;
1594 res->num_diagnostics = dr->num_diagRecs;
1596 res->diagnostics = dr;
1602 res->num_diagnostics = 0;
1604 res->diagnostics = 0;
1608 apdu->which = Z_APDU_sortResponse;
1609 apdu->u.sortResponse = res;
1613 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1616 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1617 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1618 odr_malloc (assoc->encode, sizeof(*res));
1619 bend_delete_rr *bdrr = (bend_delete_rr *)
1620 odr_malloc (assoc->encode, sizeof(*bdrr));
1621 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1623 logf(LOG_LOG, "Got DeleteRequest.");
1625 bdrr->num_setnames = req->num_resultSetList;
1626 bdrr->setnames = req->resultSetList;
1627 bdrr->stream = assoc->encode;
1628 bdrr->function = *req->deleteFunction;
1630 ((int (*)(void *, bend_delete_rr *))
1631 (*assoc->bend_delete))(assoc->backend, bdrr);
1633 res->referenceId = req->referenceId;
1635 res->deleteOperationStatus = (int *)
1636 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1637 *res->deleteOperationStatus = bdrr->delete_status;
1639 res->deleteListStatuses = 0;
1640 res->numberNotDeleted = 0;
1641 res->bulkStatuses = 0;
1642 res->deleteMessage = 0;
1645 apdu->which = Z_APDU_deleteResultSetResponse;
1646 apdu->u.deleteResultSetResponse = res;
1650 static void process_close(association *assoc, request *reqb)
1652 Z_Close *req = reqb->request->u.close;
1653 static char *reasons[] =
1660 "securityViolation",
1667 logf(LOG_LOG, "Got Close, reason %s, message %s",
1668 reasons[*req->closeReason], req->diagnosticInformation ?
1669 req->diagnosticInformation : "NULL");
1670 if (assoc->version < 3) /* to make do_force respond with close */
1672 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1676 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1680 reqb->len_refid = refid->len;
1681 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1682 memcpy (reqb->refid, refid->buf, refid->len);
1686 reqb->len_refid = 0;
1691 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1693 process_response (a, req, res);
1696 bend_request bend_request_mk (bend_association a)
1698 request *nreq = request_get (&a->outgoing);
1699 nreq->request_mem = nmem_create ();
1703 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1708 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1709 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1710 id->len = id->size = req->len_refid;
1711 memcpy (id->buf, req->refid, req->len_refid);
1715 void bend_request_destroy (bend_request *req)
1717 nmem_destroy((*req)->request_mem);
1718 request_release(*req);
1722 int bend_backend_respond (bend_association a, bend_request req)
1724 return process_request (a, req);
1727 void bend_request_setdata(bend_request r, void *p)
1732 void *bend_request_getdata(bend_request r)
1734 return r->clientData;
1737 /* Chas: Added in from DALI */
1738 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1740 bend_esrequest_rr esrequest;
1742 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1743 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1745 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1747 logf(LOG_DEBUG,"inside Process esRequest");
1749 esrequest.esr = reqb->request->u.extendedServicesRequest;
1750 esrequest.stream = assoc->encode;
1751 esrequest.errcode = 0;
1752 esrequest.errstring = NULL;
1753 esrequest.request = reqb;
1754 esrequest.association = assoc;
1756 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1759 /* If the response is being delayed, return NULL */
1760 if (esrequest.request == NULL)
1763 resp->referenceId = req->referenceId;
1765 if ( esrequest.errcode == 0 )
1767 /* Backend service indicates request will be processed */
1768 logf(LOG_DEBUG,"Request will be processed...Good !");
1769 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1773 /* Backend indicates error, request will not be processed */
1774 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1775 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1777 /* Do something with the members of bend_extendedservice */
1779 logf(LOG_DEBUG,"Send the result apdu");
1784 /* Chas: End of addition from DALI */