2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.78 1998-08-03 10:23:55 adam
8 * Fixed bug regarding Options for Sort.
10 * Revision 1.77 1998/07/20 12:38:42 adam
11 * Implemented delete result set service to server API.
13 * Revision 1.76 1998/05/27 16:57:07 adam
14 * Support for surrogate diagnostic records added for bend_fetch.
16 * Revision 1.75 1998/05/18 10:13:07 adam
17 * Fixed call to es_request handler - extra argument was passed.
19 * Revision 1.74 1998/03/31 15:13:20 adam
20 * Development towards compiled ASN.1.
22 * Revision 1.73 1998/03/31 11:07:45 adam
23 * Furhter work on UNIverse resource report.
24 * Added Extended Services handling in frontend server.
26 * Revision 1.72 1998/02/11 11:53:35 adam
27 * Changed code so that it compiles as C++.
29 * Revision 1.71 1998/02/10 11:03:57 adam
30 * Added support for extended handlers in backend server interface.
32 * Revision 1.70 1998/01/29 13:15:35 adam
33 * Implemented sort for the backend interface.
35 * Revision 1.69 1997/09/30 11:48:12 adam
36 * Fixed bug introduced by previous commit.
38 * Revision 1.68 1997/09/29 13:18:59 adam
39 * Added function, oid_ent_to_oid, to replace the function
40 * oid_getoidbyent, which is not thread safe.
42 * Revision 1.67 1997/09/17 12:10:40 adam
45 * Revision 1.66 1997/09/05 15:26:44 adam
46 * Added ODR encode in search and scen bend request structures.
47 * Fixed a few enums that caused trouble with C++.
49 * Revision 1.65 1997/09/01 08:53:01 adam
50 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
51 * moved a separate directory. MSV5.0 project server.dsp created.
52 * As an option, the server can now operate as an NT service.
54 * Revision 1.64 1997/04/30 08:52:11 quinn
57 * Revision 1.63 1996/10/11 11:57:26 quinn
60 * Revision 1.62 1996/07/06 19:58:35 quinn
61 * System headerfiles gathered in yconfig
63 * Revision 1.61 1996/06/10 08:56:16 quinn
66 * Revision 1.60 1996/05/30 11:03:10 quinn
67 * Fixed NextresultSetPosition bug fixed.
69 * Revision 1.59 1996/05/14 09:26:46 quinn
70 * Added attribute set to scan backend
72 * Revision 1.58 1996/02/20 12:53:04 quinn
75 * Revision 1.57 1996/01/02 08:57:47 quinn
76 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
78 * Revision 1.56 1995/12/14 11:09:57 quinn
81 * Revision 1.55 1995/11/08 17:41:37 quinn
84 * Revision 1.54 1995/11/08 15:11:29 quinn
85 * Log of close transmit.
87 * Revision 1.53 1995/11/01 13:54:58 quinn
90 * Revision 1.52 1995/11/01 12:19:13 quinn
91 * Second attempt to fix same bug.
93 * Revision 1.50 1995/10/25 16:58:32 quinn
96 * Revision 1.49 1995/10/16 13:51:53 quinn
97 * Changes to provide Especs to the backend.
99 * Revision 1.48 1995/10/06 08:51:20 quinn
100 * Added Write-buffer.
102 * Revision 1.47 1995/08/29 14:24:16 quinn
103 * Added second half of close-handshake
105 * Revision 1.46 1995/08/29 11:17:58 quinn
106 * Added code to receive close
108 * Revision 1.45 1995/08/21 09:11:00 quinn
109 * Smallish fixes to suppport new formats.
111 * Revision 1.44 1995/08/17 12:45:25 quinn
112 * Fixed minor problems with GRS-1. Added support in c&s.
114 * Revision 1.43 1995/08/15 12:00:31 quinn
117 * Revision 1.42 1995/08/15 11:16:50 quinn
119 * Revision 1.41 1995/08/02 10:23:06 quinn
122 * Revision 1.40 1995/07/31 14:34:26 quinn
123 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
125 * Revision 1.39 1995/06/27 13:21:00 quinn
128 * Revision 1.38 1995/06/19 12:39:11 quinn
129 * Fixed bug in timeout code. Added BER dumper.
131 * Revision 1.37 1995/06/16 13:16:14 quinn
132 * Fixed Defaultdiagformat.
134 * Revision 1.36 1995/06/16 10:31:36 quinn
135 * Added session timeout.
137 * Revision 1.35 1995/06/15 07:45:14 quinn
140 * Revision 1.34 1995/06/14 15:26:46 quinn
141 * *** empty log message ***
143 * Revision 1.33 1995/06/06 14:57:05 quinn
144 * Better diagnostics.
146 * Revision 1.32 1995/06/06 08:41:44 quinn
147 * Better diagnostics.
149 * Revision 1.31 1995/06/06 08:15:37 quinn
152 * Revision 1.30 1995/06/05 10:53:32 quinn
153 * Added a better SCAN.
155 * Revision 1.29 1995/06/01 11:25:03 quinn
158 * Revision 1.28 1995/06/01 11:21:01 quinn
159 * Attempting to fix a bug in pack-records. replaced break with continue
160 * for large records, according to standard.
162 * Revision 1.27 1995/05/29 08:12:06 quinn
165 * Revision 1.26 1995/05/18 13:02:12 quinn
168 * Revision 1.25 1995/05/17 08:42:26 quinn
169 * Transfer auth info to backend. Allow backend to reject init gracefully.
171 * Revision 1.24 1995/05/16 08:51:04 quinn
172 * License, documentation, and memory fixes
174 * Revision 1.23 1995/05/15 13:25:10 quinn
177 * Revision 1.22 1995/05/15 11:56:39 quinn
178 * Asynchronous facilities. Restructuring of seshigh code.
180 * Revision 1.21 1995/05/02 08:53:19 quinn
181 * Trying in vain to fix comm with ISODE
183 * Revision 1.20 1995/04/20 15:13:00 quinn
186 * Revision 1.19 1995/04/18 08:15:34 quinn
187 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
188 * neater. We'll make the same change for decoding one day.
190 * Revision 1.18 1995/04/17 11:28:25 quinn
193 * Revision 1.17 1995/04/10 10:23:36 quinn
194 * Some work to add scan and other things.
196 * Revision 1.16 1995/03/31 09:18:55 quinn
199 * Revision 1.15 1995/03/30 14:03:23 quinn
200 * Added RFC1006 as separate library
202 * Revision 1.14 1995/03/30 12:18:17 quinn
205 * Revision 1.13 1995/03/30 09:09:24 quinn
206 * Added state-handle and some support for asynchronous activities.
208 * Revision 1.12 1995/03/29 15:40:16 quinn
209 * Ongoing work. Statserv is now dynamic by default
211 * Revision 1.11 1995/03/28 09:16:21 quinn
212 * Added record packing to the search request
214 * Revision 1.10 1995/03/27 08:34:24 quinn
215 * Added dynamic server functionality.
216 * Released bindings to session.c (is now redundant)
218 * Revision 1.9 1995/03/22 15:01:26 quinn
219 * Adjusting record packing.
221 * Revision 1.8 1995/03/22 10:13:21 quinn
222 * Working on record packer
224 * Revision 1.7 1995/03/21 15:53:31 quinn
227 * Revision 1.6 1995/03/21 12:30:09 quinn
228 * Beginning to add support for record packing.
230 * Revision 1.5 1995/03/17 10:44:13 quinn
231 * Added catch of null-string in makediagrec
233 * Revision 1.4 1995/03/17 10:18:08 quinn
234 * Added memory management.
236 * Revision 1.3 1995/03/16 17:42:39 quinn
239 * Revision 1.2 1995/03/16 13:29:01 quinn
240 * Partitioned server.
242 * Revision 1.1 1995/03/15 16:02:10 quinn
243 * Modded session.c to seshigh.c
248 * Frontend server logic.
250 * This code receives incoming APDUs, and handles client requests by means
251 * of the backend API.
253 * Some of the code is getting quite involved, compared to simpler servers -
254 * primarily because it is asynchronous both in the communication with
255 * the user and the backend. We think the complexity will pay off in
256 * the form of greater flexibility when more asynchronous facilities
259 * Memory management has become somewhat involved. In the simple case, where
260 * only one PDU is pending at a time, it will simply reuse the same memory,
261 * once it has found its working size. When we enable multiple concurrent
262 * operations, perhaps even with multiple parallel calls to the backend, it
263 * will maintain a pool of buffers for encoding and decoding, trying to
264 * minimize memory allocation/deallocation during normal operation.
266 * TODOs include (and will be done in order of public interest):
268 * Support for EXPLAIN - provide simple meta-database system.
269 * Support for access control.
270 * Support for resource control.
271 * Support for extended services - primarily Item Order.
272 * Rest of Z39.50-1994
287 #include <comstack.h>
293 #include <statserv.h>
297 static int process_request(association *assoc, request *req);
298 void backend_response(IOCHAN i, int event);
299 static int process_response(association *assoc, request *req, Z_APDU *res);
300 static Z_APDU *process_initRequest(association *assoc, request *reqb);
301 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
303 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
304 bend_search_rr *bsrr, int *fd);
305 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
307 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
308 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
309 static void process_close(association *assoc, request *reqb);
310 void save_referenceId (request *reqb, Z_ReferenceId *refid);
311 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
314 static FILE *apduf = 0; /* for use in static mode */
315 static statserv_options_block *control_block = 0;
317 /* Chas: Added in from DALI */
318 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
319 /* Chas: End of addition from DALI */
322 * Create and initialize a new association-handle.
323 * channel : iochannel for the current line.
324 * link : communications channel.
325 * Returns: 0 or a new association handle.
327 association *create_association(IOCHAN channel, COMSTACK link)
332 control_block = statserv_getcontrol();
333 if (!(anew = (association *)xmalloc(sizeof(*anew))))
335 anew->client_chan = channel;
336 anew->client_link = link;
337 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
338 !(anew->encode = odr_createmem(ODR_ENCODE)))
340 if (*control_block->apdufile)
345 strcpy(filename, control_block->apdufile);
346 if (!(anew->print = odr_createmem(ODR_PRINT)))
348 if (*control_block->apdufile != '-')
350 strcpy(filename, control_block->apdufile);
351 if (!control_block->dynamic)
355 if (!(apduf = fopen(filename, "w")))
357 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
360 setvbuf(apduf, 0, _IONBF, 0);
366 sprintf(filename + strlen(filename), ".%d", getpid());
367 if (!(f = fopen(filename, "w")))
369 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
372 setvbuf(f, 0, _IONBF, 0);
374 odr_setprint(anew->print, f);
379 anew->input_buffer = 0;
380 anew->input_buffer_len = 0;
382 anew->state = ASSOC_NEW;
383 request_initq(&anew->incoming);
384 request_initq(&anew->outgoing);
385 anew->proto = cs_getproto(link);
390 * Free association and release resources.
392 void destroy_association(association *h)
394 odr_destroy(h->decode);
395 odr_destroy(h->encode);
397 odr_destroy(h->print);
399 xfree(h->input_buffer);
401 bend_close(h->backend);
402 while (request_deq(&h->incoming));
403 while (request_deq(&h->outgoing));
404 request_delq(&h->incoming);
405 request_delq(&h->outgoing);
409 static void do_close_req(association *a, int reason, char *message,
413 Z_Close *cls = zget_Close(a->encode);
415 /* Purge request queue */
416 while (request_deq(&a->incoming));
417 while (request_deq(&a->outgoing));
420 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
421 reason, message ? message : "none");
422 apdu.which = Z_APDU_close;
424 *cls->closeReason = reason;
425 cls->diagnosticInformation = message;
426 process_response(a, req, &apdu);
427 iochan_settimeout(a->client_chan, 60);
431 logf(LOG_DEBUG, "v2 client. No Close PDU");
432 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
434 a->state = ASSOC_DEAD;
437 static void do_close(association *a, int reason, char *message)
439 do_close_req (a, reason, message, request_get(&a->outgoing));
443 * This is where PDUs from the client are read and the further
444 * processing is initiated. Flow of control moves down through the
445 * various process_* functions below, until the encoded result comes back up
446 * to the output handler in here.
448 * h : the I/O channel that has an outstanding event.
449 * event : the current outstanding event.
451 void ir_session(IOCHAN h, int event)
454 association *assoc = (association *)iochan_getdata(h);
455 COMSTACK conn = assoc->client_link;
458 assert(h && conn && assoc);
459 if (event == EVENT_TIMEOUT)
461 if (assoc->state != ASSOC_UP)
463 logf(LOG_LOG, "Final timeout - closing connection.");
465 destroy_association(assoc);
470 logf(LOG_LOG, "Session idle too long. Sending close.");
471 do_close(assoc, Z_Close_lackOfActivity, 0);
475 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
477 if (event & EVENT_INPUT)
479 logf(LOG_DEBUG, "ir_session (input)");
480 assert(assoc && conn);
481 /* We aren't speaking to this fellow */
482 if (assoc->state == ASSOC_DEAD)
484 logf(LOG_LOG, "Closed connection after reject");
486 destroy_association(assoc);
490 if ((res = cs_get(conn, &assoc->input_buffer,
491 &assoc->input_buffer_len)) <= 0)
493 logf(LOG_LOG, "Connection closed by client");
495 destroy_association(assoc);
499 else if (res == 1) /* incomplete read - wait for more */
501 if (cs_more(conn)) /* more stuff - call us again later, please */
502 iochan_setevent(h, EVENT_INPUT);
504 /* we got a complete PDU. Let's decode it */
505 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
506 req = request_get(&assoc->incoming); /* get a new request structure */
507 odr_reset(assoc->decode);
508 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
509 if (!z_APDU(assoc->decode, &req->request, 0))
511 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
512 odr_errmsg(odr_geterror(assoc->decode)),
513 odr_offset(assoc->decode));
514 logf(LOG_LOG, "PDU dump:");
515 odr_dumpBER(log_file(), assoc->input_buffer, res);
516 do_close(assoc, Z_Close_protocolError, "Malformed package");
519 req->request_mem = odr_extract_mem(assoc->decode);
520 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
522 logf(LOG_WARN, "ODR print error: %s",
523 odr_errmsg(odr_geterror(assoc->print)));
524 odr_reset(assoc->print);
526 request_enq(&assoc->incoming, req);
529 /* can we do something yet? */
530 req = request_head(&assoc->incoming);
531 if (req->state == REQUEST_IDLE)
533 request_deq(&assoc->incoming);
534 if (process_request(assoc, req) < 0)
535 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
539 if (event & EVENT_OUTPUT)
541 request *req = request_head(&assoc->outgoing);
543 logf(LOG_DEBUG, "ir_session (output)");
544 req->state = REQUEST_PENDING;
545 switch (res = cs_put(conn, req->response, req->len_response))
548 logf(LOG_LOG, "Connection closed by client");
550 destroy_association(assoc);
553 case 0: /* all sent - release the request structure */
554 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
555 nmem_destroy(req->request_mem);
556 request_deq(&assoc->outgoing);
557 request_release(req);
558 if (!request_head(&assoc->outgoing))
559 iochan_clearflag(h, EVENT_OUTPUT);
561 /* value of 1 -- partial send -- is simply ignored */
564 if (event & EVENT_EXCEPT)
566 logf(LOG_DEBUG, "ir_session (exception)");
568 destroy_association(assoc);
574 * Initiate request processing.
576 static int process_request(association *assoc, request *req)
582 assert(req && req->state == REQUEST_IDLE);
583 switch (req->request->which)
585 case Z_APDU_initRequest:
586 res = process_initRequest(assoc, req); break;
587 case Z_APDU_searchRequest:
588 res = process_searchRequest(assoc, req, &fd); break;
589 case Z_APDU_presentRequest:
590 res = process_presentRequest(assoc, req, &fd); break;
591 case Z_APDU_scanRequest:
592 res = process_scanRequest(assoc, req, &fd); break;
593 case Z_APDU_extendedServicesRequest:
594 if (assoc->bend_esrequest)
595 res = process_ESRequest(assoc, req, &fd);
598 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
602 case Z_APDU_sortRequest:
603 if (assoc->bend_sort)
604 res = process_sortRequest(assoc, req, &fd);
607 logf(LOG_WARN, "Cannot handle SORT APDU");
612 process_close(assoc, req); return 0;
613 case Z_APDU_deleteResultSetRequest:
614 if (assoc->bend_delete)
615 res = process_deleteRequest(assoc, req, &fd);
618 logf (LOG_WARN, "Cannot handle Delete APDU");
623 logf(LOG_WARN, "Bad APDU received");
628 logf(LOG_DEBUG, " result immediately available");
629 retval = process_response(assoc, req, res);
633 logf(LOG_DEBUG, " result unavailble");
636 else /* no result yet - one will be provided later */
640 /* Set up an I/O handler for the fd supplied by the backend */
642 logf(LOG_DEBUG, " establishing handler for result");
643 req->state = REQUEST_PENDING;
644 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
646 iochan_setdata(chan, assoc);
653 * Handle message from the backend.
655 void backend_response(IOCHAN i, int event)
657 association *assoc = (association *)iochan_getdata(i);
658 request *req = request_head(&assoc->incoming);
662 logf(LOG_DEBUG, "backend_response");
663 assert(assoc && req && req->state != REQUEST_IDLE);
664 /* determine what it is we're waiting for */
665 switch (req->request->which)
667 case Z_APDU_searchRequest:
668 res = response_searchRequest(assoc, req, 0, &fd); break;
670 case Z_APDU_presentRequest:
671 res = response_presentRequest(assoc, req, 0, &fd); break;
672 case Z_APDU_scanRequest:
673 res = response_scanRequest(assoc, req, 0, &fd); break;
676 logf(LOG_WARN, "Serious programmer's lapse or bug");
679 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
681 logf(LOG_LOG, "Fatal error when talking to backend");
682 do_close(assoc, Z_Close_systemProblem, 0);
686 else if (!res) /* no result yet - try again later */
688 logf(LOG_DEBUG, " no result yet");
689 iochan_setfd(i, fd); /* in case fd has changed */
694 * Encode response, and transfer the request structure to the outgoing queue.
696 static int process_response(association *assoc, request *req, Z_APDU *res)
698 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
699 if (!z_APDU(assoc->encode, &res, 0))
701 logf(LOG_WARN, "ODR error when encoding response: %s",
702 odr_errmsg(odr_geterror(assoc->decode)));
703 odr_reset(assoc->encode);
706 req->response = odr_getbuf(assoc->encode, &req->len_response,
707 &req->size_response);
708 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
709 if (assoc->print && !z_APDU(assoc->print, &res, 0))
711 logf(LOG_WARN, "ODR print error: %s",
712 odr_errmsg(odr_geterror(assoc->print)));
713 odr_reset(assoc->print);
715 odr_reset(assoc->encode);
716 req->state = REQUEST_IDLE;
717 request_enq(&assoc->outgoing, req);
718 /* turn the work over to the ir_session handler */
719 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
720 /* Is there more work to be done? give that to the input handler too */
722 if (request_head(&assoc->incoming))
724 logf (LOG_DEBUG, "more work to be done");
725 iochan_setevent(assoc->client_chan, EVENT_WORK);
732 * Handle init request.
733 * At the moment, we don't check the options
734 * anywhere else in the code - we just try not to do anything that would
735 * break a naive client. We'll toss 'em into the association block when
736 * we need them there.
738 static Z_APDU *process_initRequest(association *assoc, request *reqb)
740 Z_InitRequest *req = reqb->request->u.initRequest;
741 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
742 Z_InitResponse *resp = apdu->u.initResponse;
743 bend_initrequest binitreq;
744 bend_initresult *binitres;
747 logf(LOG_LOG, "Got initRequest");
748 if (req->implementationId)
749 logf(LOG_LOG, "Id: %s", req->implementationId);
750 if (req->implementationName)
751 logf(LOG_LOG, "Name: %s", req->implementationName);
752 if (req->implementationVersion)
753 logf(LOG_LOG, "Version: %s", req->implementationVersion);
755 binitreq.stream = assoc->encode;
756 binitreq.configname = "default-config";
757 binitreq.auth = req->idAuthentication;
758 binitreq.bend_sort = NULL;
759 binitreq.bend_search = NULL;
760 binitreq.bend_present = NULL;
761 binitreq.bend_esrequest = NULL;
762 binitreq.bend_delete = NULL;
763 if (!(binitres = bend_init(&binitreq)))
765 logf(LOG_WARN, "Bad response from backend.");
769 assoc->backend = binitres->handle;
770 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
771 logf (LOG_DEBUG, "Sort handler installed");
772 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
773 logf (LOG_DEBUG, "Search handler installed");
774 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
775 logf (LOG_DEBUG, "Present handler installed");
776 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
777 logf (LOG_DEBUG, "ESRequest handler installed");
778 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
779 logf (LOG_DEBUG, "Delete handler installed");
781 resp->referenceId = req->referenceId;
783 /* let's tell the client what we can do */
784 if (ODR_MASK_GET(req->options, Z_Options_search))
786 ODR_MASK_SET(resp->options, Z_Options_search);
787 strcat(options, "srch");
789 if (ODR_MASK_GET(req->options, Z_Options_present))
791 ODR_MASK_SET(resp->options, Z_Options_present);
792 strcat(options, " prst");
794 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
796 ODR_MASK_SET(resp->options, Z_Options_delSet);
797 strcat(options, " del");
799 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
800 binitreq.bend_esrequest)
802 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
803 strcat (options, " extendedServices");
805 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
807 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
808 strcat(options, " namedresults");
810 if (ODR_MASK_GET(req->options, Z_Options_scan))
812 ODR_MASK_SET(resp->options, Z_Options_scan);
813 strcat(options, " scan");
815 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
817 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
818 strcat(options, " concurop");
820 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
822 ODR_MASK_SET(resp->options, Z_Options_sort);
823 strcat(options, " sort");
825 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
827 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
828 assoc->version = 2; /* 1 & 2 are equivalent */
830 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
832 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
835 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
837 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
840 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
841 assoc->maximumRecordSize = *req->maximumRecordSize;
842 if (assoc->maximumRecordSize > control_block->maxrecordsize)
843 assoc->maximumRecordSize = control_block->maxrecordsize;
844 assoc->preferredMessageSize = *req->preferredMessageSize;
845 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
846 assoc->preferredMessageSize = assoc->maximumRecordSize;
847 resp->preferredMessageSize = &assoc->preferredMessageSize;
848 resp->maximumRecordSize = &assoc->maximumRecordSize;
849 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
850 if (binitres->errcode)
852 logf(LOG_LOG, "Connection rejected by backend.");
854 assoc->state = ASSOC_DEAD;
857 assoc->state = ASSOC_UP;
862 * These functions should be merged.
865 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
868 dr->which = Z_DefaultDiagFormat_v2Addinfo;
869 dr->u.v2Addinfo = addinfo ? addinfo : "";
871 dr->which = Z_DiagForm_v2AddInfo;
872 dr->addinfo = addinfo ? addinfo : "";
877 * nonsurrogate diagnostic record.
879 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
882 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
884 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
885 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
886 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
888 bib1.proto = assoc->proto;
889 bib1.oclass = CLASS_DIAGSET;
890 bib1.value = VAL_BIB1;
892 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
895 rec->which = Z_Records_NSD;
897 rec->u.nonSurrogateDiagnostic = dr;
900 rec->u.nonSurrogateDiagnostic = drec;
901 drec->which = Z_DiagRec_defaultFormat;
902 drec->u.defaultFormat = dr;
904 rec->u.nonSurrogateDiagnostic = dr;
907 dr->diagnosticSetId = odr_oiddup (assoc->encode,
908 oid_ent_to_oid(&bib1, oid));
910 set_addinfo (dr, addinfo);
915 * surrogate diagnostic.
917 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
918 int error, char *addinfo)
921 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
922 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
924 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
925 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
927 bib1.proto = assoc->proto;
928 bib1.oclass = CLASS_DIAGSET;
929 bib1.value = VAL_BIB1;
931 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
933 rec->databaseName = dbname;
934 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
935 rec->u.surrogateDiagnostic = drec;
936 drec->which = Z_DiagRec_defaultFormat;
937 drec->u.defaultFormat = dr;
938 dr->diagnosticSetId = odr_oiddup (assoc->encode,
939 oid_ent_to_oid(&bib1, oid));
941 set_addinfo (dr, addinfo);
947 * multiple nonsurrogate diagnostics.
949 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
952 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
953 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
955 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
956 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
957 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
959 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
960 bib1.proto = assoc->proto;
961 bib1.oclass = CLASS_DIAGSET;
962 bib1.value = VAL_BIB1;
965 recs->num_diagRecs = 1;
966 recs->diagRecs = recp;
968 drec->which = Z_DiagRec_defaultFormat;
969 drec->u.defaultFormat = rec;
971 rec->diagnosticSetId = odr_oiddup (assoc->encode,
972 oid_ent_to_oid(&bib1, oid));
973 rec->condition = err;
976 rec->which = Z_DefaultDiagFormat_v2Addinfo;
977 rec->u.v2Addinfo = addinfo ? addinfo : "";
979 rec->which = Z_DiagForm_v2AddInfo;
980 rec->addinfo = addinfo ? addinfo : "";
985 static Z_Records *pack_records(association *a, char *setname, int start,
986 int *num, Z_RecordComposition *comp,
987 int *next, int *pres, oid_value format)
990 int recno, total_length = 0, toget = *num, dumped_records = 0;
991 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
992 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
993 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
996 records->which = Z_Records_DBOSD;
997 records->u.databaseOrSurDiagnostics = reclist;
998 reclist->num_records = 0;
999 reclist->records = list;
1000 *pres = Z_PRES_SUCCESS;
1004 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
1005 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1006 a->maximumRecordSize);
1007 for (recno = start; reclist->num_records < toget; recno++)
1009 bend_fetchrequest freq;
1010 bend_fetchresult *fres;
1011 Z_NamePlusRecord *thisrec;
1012 Z_DatabaseRecord *thisext;
1013 int this_length = 0;
1016 * we get the number of bytes allocated on the stream before any
1017 * allocation done by the backend - this should give us a reasonable
1018 * idea of the total size of the data so far.
1020 total_length = odr_total(a->encode) - dumped_records;
1021 freq.setname = setname;
1022 freq.number = recno;
1024 freq.format = format;
1025 freq.stream = a->encode;
1026 freq.surrogate_flag = 0;
1027 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1029 *pres = Z_PRES_FAILURE;
1030 return diagrec(a, 2, "Backend interface problem");
1032 /* backend should be able to signal whether error is system-wide
1033 or only pertaining to current record */
1036 if (!freq.surrogate_flag)
1038 *pres = Z_PRES_FAILURE;
1039 return diagrec(a, fres->errcode, fres->errstring);
1041 reclist->records[reclist->num_records] =
1042 surrogatediagrec(a, fres->basename, fres->errcode,
1044 reclist->num_records++;
1045 *next = fres->last_in_set ? 0 : recno + 1;
1049 this_length = fres->len;
1051 this_length = odr_total(a->encode) - total_length;
1052 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1053 this_length, total_length);
1054 if (this_length + total_length > a->preferredMessageSize)
1056 /* record is small enough, really */
1057 if (this_length <= a->preferredMessageSize)
1059 logf(LOG_DEBUG, " Dropped last normal-sized record");
1060 *pres = Z_PRES_PARTIAL_2;
1063 /* record can only be fetched by itself */
1064 if (this_length < a->maximumRecordSize)
1066 logf(LOG_DEBUG, " Record > prefmsgsz");
1069 logf(LOG_DEBUG, " Dropped it");
1070 reclist->records[reclist->num_records] =
1071 surrogatediagrec(a, fres->basename, 16, 0);
1072 reclist->num_records++;
1073 *next = fres->last_in_set ? 0 : recno + 1;
1074 dumped_records += this_length;
1078 else /* too big entirely */
1080 logf(LOG_DEBUG, "Record > maxrcdsz");
1081 reclist->records[reclist->num_records] =
1082 surrogatediagrec(a, fres->basename, 17, 0);
1083 reclist->num_records++;
1084 *next = fres->last_in_set ? 0 : recno + 1;
1085 dumped_records += this_length;
1090 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1092 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1093 strlen(fres->basename) + 1)))
1095 strcpy(thisrec->databaseName, fres->basename);
1096 thisrec->which = Z_NamePlusRecord_databaseRecord;
1097 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1098 sizeof(Z_DatabaseRecord))))
1100 recform.proto = a->proto;
1101 recform.oclass = CLASS_RECSYN;
1102 recform.value = fres->format;
1103 thisext->direct_reference = odr_oiddup(a->encode,
1104 oid_ent_to_oid(&recform, oid));
1105 thisext->indirect_reference = 0;
1106 thisext->descriptor = 0;
1107 if (fres->len < 0) /* Structured data */
1109 switch (fres->format)
1111 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1112 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1113 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1115 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1116 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1119 logf(LOG_FATAL, "Unknown structured format from backend.");
1124 * We cheat on the pointers here. Obviously, the record field
1125 * of the backend-fetch structure should have been a union for
1126 * correctness, but we're stuck with this for backwards
1129 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1131 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1134 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1136 memcpy(sutrs, fres->record, fres->len);
1137 sutrs[fres->len] = '\0';
1139 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1141 thisext->which = Z_External_sutrs;
1142 thisext->u.sutrs = sutrs;
1143 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1144 sutrs->len = sutrs->size = fres->len;
1145 memcpy(sutrs->buf, fres->record, fres->len);
1148 else /* octet-aligned record. */
1150 thisext->which = Z_External_octet;
1151 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1154 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1157 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1158 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1161 reclist->records[reclist->num_records] = thisrec;
1162 reclist->num_records++;
1163 *next = fres->last_in_set ? 0 : recno + 1;
1165 *num = reclist->num_records;
1169 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1172 Z_SearchRequest *req = reqb->request->u.searchRequest;
1173 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1175 logf(LOG_LOG, "Got SearchRequest.");
1176 save_referenceId (reqb, req->referenceId);
1177 /* store ref id in request */
1179 bsrr->request = reqb;
1180 bsrr->association = assoc;
1181 if (assoc->bend_search)
1183 bsrr->setname = req->resultSetName;
1184 bsrr->replace_set = *req->replaceIndicator;
1185 bsrr->num_bases = req->num_databaseNames;
1186 bsrr->basenames = req->databaseNames;
1187 bsrr->query = req->query;
1188 bsrr->stream = assoc->encode;
1191 bsrr->errstring = NULL;
1192 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1198 bend_searchrequest bsrq;
1199 bend_searchresult *bsrt;
1201 bsrq.setname = req->resultSetName;
1202 bsrq.replace_set = *req->replaceIndicator;
1203 bsrq.num_bases = req->num_databaseNames;
1204 bsrq.basenames = req->databaseNames;
1205 bsrq.query = req->query;
1206 bsrq.stream = assoc->encode;
1207 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1209 bsrr->hits = bsrt->hits;
1210 bsrr->errcode = bsrt->errcode;
1211 bsrr->errstring = bsrt->errstring;
1213 return response_searchRequest(assoc, reqb, bsrr, fd);
1216 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1219 * Prepare a searchresponse based on the backend results. We probably want
1220 * to look at making the fetching of records nonblocking as well, but
1221 * so far, we'll keep things simple.
1222 * If bsrt is null, that means we're called in response to a communications
1223 * event, and we'll have to get the response for ourselves.
1225 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1226 bend_search_rr *bsrt, int *fd)
1228 Z_SearchRequest *req = reqb->request->u.searchRequest;
1229 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1230 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1231 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1232 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1233 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1234 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1241 apdu->which = Z_APDU_searchResponse;
1242 apdu->u.searchResponse = resp;
1243 resp->referenceId = req->referenceId;
1244 resp->additionalSearchInfo = 0;
1245 resp->otherInfo = 0;
1247 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1249 logf(LOG_FATAL, "Bad result from backend");
1252 else if (bsrt->errcode)
1254 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1255 resp->resultCount = nulint;
1256 resp->numberOfRecordsReturned = nulint;
1257 resp->nextResultSetPosition = nulint;
1258 resp->searchStatus = nulint;
1259 resp->resultSetStatus = none;
1260 resp->presentStatus = 0;
1264 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1265 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1266 Z_RecordComposition comp, *compp = 0;
1271 resp->resultCount = &bsrt->hits;
1273 comp.which = Z_RecordComp_simple;
1274 /* how many records does the user agent want, then? */
1275 if (bsrt->hits <= *req->smallSetUpperBound)
1277 *toget = bsrt->hits;
1278 if ((comp.u.simple = req->smallSetElementSetNames))
1281 else if (bsrt->hits < *req->largeSetLowerBound)
1283 *toget = *req->mediumSetPresentNumber;
1284 if (*toget > bsrt->hits)
1285 *toget = bsrt->hits;
1286 if ((comp.u.simple = req->mediumSetElementSetNames))
1292 if (*toget && !resp->records)
1297 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1298 prefformat->oclass != CLASS_RECSYN)
1301 form = prefformat->value;
1302 resp->records = pack_records(assoc, req->resultSetName, 1,
1303 toget, compp, next, presst, form);
1306 resp->numberOfRecordsReturned = toget;
1307 resp->nextResultSetPosition = next;
1308 resp->searchStatus = sr;
1309 resp->resultSetStatus = 0;
1310 resp->presentStatus = presst;
1314 if (*resp->resultCount)
1316 resp->numberOfRecordsReturned = nulint;
1317 resp->nextResultSetPosition = next;
1318 resp->searchStatus = sr;
1319 resp->resultSetStatus = 0;
1320 resp->presentStatus = 0;
1327 * Maybe we got a little over-friendly when we designed bend_fetch to
1328 * get only one record at a time. Some backends can optimise multiple-record
1329 * fetches, and at any rate, there is some overhead involved in
1330 * all that selecting and hopping around. Problem is, of course, that the
1331 * frontend can't know ahead of time how many records it'll need to
1332 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1333 * is downright lousy as a bulk data transfer protocol.
1335 * To start with, we'll do the fetching of records from the backend
1336 * in one operation: To save some trips in and out of the event-handler,
1337 * and to simplify the interface to pack_records. At any rate, asynch
1338 * operation is more fun in operations that have an unpredictable execution
1339 * speed - which is normally more true for search than for present.
1341 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1344 Z_PresentRequest *req = reqb->request->u.presentRequest;
1348 Z_PresentResponse *resp;
1353 logf(LOG_LOG, "Got PresentRequest.");
1355 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1356 prefformat->oclass != CLASS_RECSYN)
1359 form = prefformat->value;
1360 if (assoc->bend_present)
1362 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1363 bprr->setname = req->resultSetId;
1364 bprr->start = *req->resultSetStartPoint;
1365 bprr->number = *req->numberOfRecordsRequested;
1366 bprr->format = form;
1367 bprr->comp = req->recordComposition;
1368 bprr->stream = assoc->encode;
1369 bprr->request = reqb;
1370 bprr->association = assoc;
1372 bprr->errstring = NULL;
1373 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1378 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1379 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1380 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1381 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1382 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1385 *num = *req->numberOfRecordsRequested;
1387 apdu->which = Z_APDU_presentResponse;
1388 apdu->u.presentResponse = resp;
1389 resp->referenceId = req->referenceId;
1390 resp->otherInfo = 0;
1393 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1394 num, req->recordComposition, next, presst, form);
1397 resp->numberOfRecordsReturned = num;
1398 resp->presentStatus = presst;
1399 resp->nextResultSetPosition = next;
1405 * Scan was implemented rather in a hurry, and with support for only the basic
1406 * elements of the service in the backend API. Suggestions are welcome.
1408 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1410 Z_ScanRequest *req = reqb->request->u.scanRequest;
1411 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1412 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1413 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1414 int *numberOfEntriesReturned =
1415 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1416 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1417 Z_DiagRecs *diagrecs_p = NULL;
1419 bend_scanrequest srq;
1420 bend_scanresult *srs;
1423 logf(LOG_LOG, "Got ScanRequest");
1424 *scanStatus = Z_Scan_failure;
1425 *numberOfEntriesReturned = 0;
1427 apdu->which = Z_APDU_scanResponse;
1428 apdu->u.scanResponse = res;
1429 res->referenceId = req->referenceId;
1431 res->scanStatus = scanStatus;
1432 res->numberOfEntriesReturned = numberOfEntriesReturned;
1433 res->positionOfTerm = 0;
1434 res->entries = ents;
1436 ents->num_entries = 0;
1437 ents->entries = NULL;
1438 ents->num_nonsurrogateDiagnostics = 0;
1439 ents->nonsurrogateDiagnostics = NULL;
1441 ents->which = Z_ListEntries_entries;
1443 res->attributeSet = 0;
1446 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1447 attent->oclass != CLASS_ATTSET
1448 || attent->value != VAL_BIB1))
1449 diagrecs_p = diagrecs(assoc, 121, 0);
1450 else if (req->stepSize && *req->stepSize > 0)
1451 diagrecs_p = diagrecs(assoc, 205, 0);
1454 if (req->termListAndStartPoint->term->which == Z_Term_general)
1455 logf(LOG_DEBUG, " term: '%.*s'",
1456 req->termListAndStartPoint->term->u.general->len,
1457 req->termListAndStartPoint->term->u.general->buf);
1458 srq.num_bases = req->num_databaseNames;
1459 srq.basenames = req->databaseNames;
1460 srq.num_entries = *req->numberOfTermsRequested;
1461 srq.term = req->termListAndStartPoint;
1462 srq.stream = assoc->encode;
1463 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1464 attset->oclass != CLASS_RECSYN)
1465 srq.attributeset = VAL_NONE;
1467 srq.attributeset = attset->value;
1468 srq.term_position = req->preferredPositionInResponse ?
1469 *req->preferredPositionInResponse : 1;
1470 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1471 diagrecs_p = diagrecs(assoc, 2, 0);
1472 else if (srs->errcode)
1473 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1479 Z_Entries *list = (Z_Entries *)
1480 odr_malloc (assoc->encode, sizeof(*list));
1482 Z_Entry **tab = (Z_Entry **)
1483 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1485 if (srs->status == BEND_SCAN_PARTIAL)
1486 *scanStatus = Z_Scan_partial_5;
1488 *scanStatus = Z_Scan_success;
1490 ents->entries = tab;
1491 ents->num_entries = srs->num_entries;
1492 res->numberOfEntriesReturned = &ents->num_entries;
1494 ents->u.entries = list;
1495 list->entries = tab;
1496 list->num_entries = srs->num_entries;
1497 res->numberOfEntriesReturned = &list->num_entries;
1499 res->positionOfTerm = &srs->term_position;
1500 for (i = 0; i < srs->num_entries; i++)
1506 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1507 e->which = Z_Entry_termInfo;
1508 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1509 t->suggestedAttributes = 0;
1511 t->alternativeTerm = 0;
1512 t->byAttributes = 0;
1513 t->otherTermInfo = 0;
1514 t->globalOccurrences = &srs->entries[i].occurrences;
1515 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1516 t->term->which = Z_Term_general;
1517 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1519 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1520 strlen(srs->entries[i].term));
1521 memcpy(o->buf, srs->entries[i].term, o->len);
1522 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1523 srs->entries[i].term, srs->entries[i].occurrences);
1530 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1531 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1533 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1534 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1540 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1543 Z_SortRequest *req = reqb->request->u.sortRequest;
1544 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1545 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1547 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1549 logf(LOG_LOG, "Got SortRequest.");
1552 bsrr->num_input_setnames = req->num_inputResultSetNames;
1553 bsrr->input_setnames = req->inputResultSetNames;
1555 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1556 bsrr->input_setnames = req->inputResultSetNames->strings;
1558 bsrr->output_setname = req->sortedResultSetName;
1559 bsrr->sort_sequence = req->sortSequence;
1560 bsrr->stream = assoc->encode;
1562 bsrr->sort_status = Z_SortStatus_failure;
1564 bsrr->errstring = 0;
1566 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1568 res->referenceId = req->referenceId;
1569 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1570 *res->sortStatus = bsrr->sort_status;
1571 res->resultSetStatus = 0;
1574 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1576 res->diagnostics = dr->diagRecs;
1577 res->num_diagnostics = dr->num_diagRecs;
1579 res->diagnostics = dr;
1585 res->num_diagnostics = 0;
1587 res->diagnostics = 0;
1591 apdu->which = Z_APDU_sortResponse;
1592 apdu->u.sortResponse = res;
1596 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1599 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1600 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1601 odr_malloc (assoc->encode, sizeof(*res));
1602 bend_delete_rr *bdrr = (bend_delete_rr *)
1603 odr_malloc (assoc->encode, sizeof(*bdrr));
1604 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1606 logf(LOG_LOG, "Got DeleteRequest.");
1608 bdrr->num_setnames = req->num_ids;
1609 bdrr->setnames = req->resultSetList;
1610 bdrr->stream = assoc->encode;
1611 bdrr->function = *req->deleteFunction;
1613 ((int (*)(void *, bend_delete_rr *))
1614 (*assoc->bend_delete))(assoc->backend, bdrr);
1616 res->referenceId = req->referenceId;
1618 res->deleteOperationStatus = (int *)
1619 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1620 *res->deleteOperationStatus = bdrr->delete_status;
1622 res->num_statuses = 0;
1623 res->deleteListStatuses = 0;
1624 res->numberNotDeleted = 0;
1625 res->num_bulkStatuses = 0;
1626 res->bulkStatuses = 0;
1627 res->deleteMessage = 0;
1630 apdu->which = Z_APDU_deleteResultSetResponse;
1631 apdu->u.deleteResultSetResponse = res;
1635 static void process_close(association *assoc, request *reqb)
1637 Z_Close *req = reqb->request->u.close;
1638 static char *reasons[] =
1645 "securityViolation",
1652 logf(LOG_LOG, "Got Close, reason %s, message %s",
1653 reasons[*req->closeReason], req->diagnosticInformation ?
1654 req->diagnosticInformation : "NULL");
1655 if (assoc->version < 3) /* to make do_force respond with close */
1657 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1661 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1665 reqb->len_refid = refid->len;
1666 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1667 memcpy (reqb->refid, refid->buf, refid->len);
1671 reqb->len_refid = 0;
1676 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1678 process_response (a, req, res);
1681 bend_request bend_request_mk (bend_association a)
1683 request *nreq = request_get (&a->outgoing);
1684 nreq->request_mem = nmem_create ();
1688 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1693 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1694 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1695 id->len = id->size = req->len_refid;
1696 memcpy (id->buf, req->refid, req->len_refid);
1700 void bend_request_destroy (bend_request *req)
1702 nmem_destroy((*req)->request_mem);
1703 request_release(*req);
1707 int bend_backend_respond (bend_association a, bend_request req)
1709 return process_request (a, req);
1712 void bend_request_setdata(bend_request r, void *p)
1717 void *bend_request_getdata(bend_request r)
1719 return r->clientData;
1722 /* Chas: Added in from DALI */
1723 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1725 bend_esrequest_rr esrequest;
1727 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1728 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1730 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1732 logf(LOG_DEBUG,"inside Process esRequest");
1734 esrequest.esr = reqb->request->u.extendedServicesRequest;
1735 esrequest.stream = assoc->encode;
1736 esrequest.errcode = 0;
1737 esrequest.errstring = NULL;
1738 esrequest.request = reqb;
1739 esrequest.association = assoc;
1741 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1744 /* If the response is being delayed, return NULL */
1745 if (esrequest.request == NULL)
1748 resp->referenceId = req->referenceId;
1750 if ( esrequest.errcode == 0 )
1752 /* Backend service indicates request will be processed */
1753 logf(LOG_DEBUG,"Request will be processed...Good !");
1754 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1758 /* Backend indicates error, request will not be processed */
1759 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1760 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1762 /* Do something with the members of bend_extendedservice */
1764 logf(LOG_DEBUG,"Send the result apdu");
1769 /* Chas: End of addition from DALI */