2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.77 1998-07-20 12:38:42 adam
8 * Implemented delete result set service to server API.
10 * Revision 1.76 1998/05/27 16:57:07 adam
11 * Support for surrogate diagnostic records added for bend_fetch.
13 * Revision 1.75 1998/05/18 10:13:07 adam
14 * Fixed call to es_request handler - extra argument was passed.
16 * Revision 1.74 1998/03/31 15:13:20 adam
17 * Development towards compiled ASN.1.
19 * Revision 1.73 1998/03/31 11:07:45 adam
20 * Furhter work on UNIverse resource report.
21 * Added Extended Services handling in frontend server.
23 * Revision 1.72 1998/02/11 11:53:35 adam
24 * Changed code so that it compiles as C++.
26 * Revision 1.71 1998/02/10 11:03:57 adam
27 * Added support for extended handlers in backend server interface.
29 * Revision 1.70 1998/01/29 13:15:35 adam
30 * Implemented sort for the backend interface.
32 * Revision 1.69 1997/09/30 11:48:12 adam
33 * Fixed bug introduced by previous commit.
35 * Revision 1.68 1997/09/29 13:18:59 adam
36 * Added function, oid_ent_to_oid, to replace the function
37 * oid_getoidbyent, which is not thread safe.
39 * Revision 1.67 1997/09/17 12:10:40 adam
42 * Revision 1.66 1997/09/05 15:26:44 adam
43 * Added ODR encode in search and scen bend request structures.
44 * Fixed a few enums that caused trouble with C++.
46 * Revision 1.65 1997/09/01 08:53:01 adam
47 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
48 * moved a separate directory. MSV5.0 project server.dsp created.
49 * As an option, the server can now operate as an NT service.
51 * Revision 1.64 1997/04/30 08:52:11 quinn
54 * Revision 1.63 1996/10/11 11:57:26 quinn
57 * Revision 1.62 1996/07/06 19:58:35 quinn
58 * System headerfiles gathered in yconfig
60 * Revision 1.61 1996/06/10 08:56:16 quinn
63 * Revision 1.60 1996/05/30 11:03:10 quinn
64 * Fixed NextresultSetPosition bug fixed.
66 * Revision 1.59 1996/05/14 09:26:46 quinn
67 * Added attribute set to scan backend
69 * Revision 1.58 1996/02/20 12:53:04 quinn
72 * Revision 1.57 1996/01/02 08:57:47 quinn
73 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
75 * Revision 1.56 1995/12/14 11:09:57 quinn
78 * Revision 1.55 1995/11/08 17:41:37 quinn
81 * Revision 1.54 1995/11/08 15:11:29 quinn
82 * Log of close transmit.
84 * Revision 1.53 1995/11/01 13:54:58 quinn
87 * Revision 1.52 1995/11/01 12:19:13 quinn
88 * Second attempt to fix same bug.
90 * Revision 1.50 1995/10/25 16:58:32 quinn
93 * Revision 1.49 1995/10/16 13:51:53 quinn
94 * Changes to provide Especs to the backend.
96 * Revision 1.48 1995/10/06 08:51:20 quinn
99 * Revision 1.47 1995/08/29 14:24:16 quinn
100 * Added second half of close-handshake
102 * Revision 1.46 1995/08/29 11:17:58 quinn
103 * Added code to receive close
105 * Revision 1.45 1995/08/21 09:11:00 quinn
106 * Smallish fixes to suppport new formats.
108 * Revision 1.44 1995/08/17 12:45:25 quinn
109 * Fixed minor problems with GRS-1. Added support in c&s.
111 * Revision 1.43 1995/08/15 12:00:31 quinn
114 * Revision 1.42 1995/08/15 11:16:50 quinn
116 * Revision 1.41 1995/08/02 10:23:06 quinn
119 * Revision 1.40 1995/07/31 14:34:26 quinn
120 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
122 * Revision 1.39 1995/06/27 13:21:00 quinn
125 * Revision 1.38 1995/06/19 12:39:11 quinn
126 * Fixed bug in timeout code. Added BER dumper.
128 * Revision 1.37 1995/06/16 13:16:14 quinn
129 * Fixed Defaultdiagformat.
131 * Revision 1.36 1995/06/16 10:31:36 quinn
132 * Added session timeout.
134 * Revision 1.35 1995/06/15 07:45:14 quinn
137 * Revision 1.34 1995/06/14 15:26:46 quinn
138 * *** empty log message ***
140 * Revision 1.33 1995/06/06 14:57:05 quinn
141 * Better diagnostics.
143 * Revision 1.32 1995/06/06 08:41:44 quinn
144 * Better diagnostics.
146 * Revision 1.31 1995/06/06 08:15:37 quinn
149 * Revision 1.30 1995/06/05 10:53:32 quinn
150 * Added a better SCAN.
152 * Revision 1.29 1995/06/01 11:25:03 quinn
155 * Revision 1.28 1995/06/01 11:21:01 quinn
156 * Attempting to fix a bug in pack-records. replaced break with continue
157 * for large records, according to standard.
159 * Revision 1.27 1995/05/29 08:12:06 quinn
162 * Revision 1.26 1995/05/18 13:02:12 quinn
165 * Revision 1.25 1995/05/17 08:42:26 quinn
166 * Transfer auth info to backend. Allow backend to reject init gracefully.
168 * Revision 1.24 1995/05/16 08:51:04 quinn
169 * License, documentation, and memory fixes
171 * Revision 1.23 1995/05/15 13:25:10 quinn
174 * Revision 1.22 1995/05/15 11:56:39 quinn
175 * Asynchronous facilities. Restructuring of seshigh code.
177 * Revision 1.21 1995/05/02 08:53:19 quinn
178 * Trying in vain to fix comm with ISODE
180 * Revision 1.20 1995/04/20 15:13:00 quinn
183 * Revision 1.19 1995/04/18 08:15:34 quinn
184 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
185 * neater. We'll make the same change for decoding one day.
187 * Revision 1.18 1995/04/17 11:28:25 quinn
190 * Revision 1.17 1995/04/10 10:23:36 quinn
191 * Some work to add scan and other things.
193 * Revision 1.16 1995/03/31 09:18:55 quinn
196 * Revision 1.15 1995/03/30 14:03:23 quinn
197 * Added RFC1006 as separate library
199 * Revision 1.14 1995/03/30 12:18:17 quinn
202 * Revision 1.13 1995/03/30 09:09:24 quinn
203 * Added state-handle and some support for asynchronous activities.
205 * Revision 1.12 1995/03/29 15:40:16 quinn
206 * Ongoing work. Statserv is now dynamic by default
208 * Revision 1.11 1995/03/28 09:16:21 quinn
209 * Added record packing to the search request
211 * Revision 1.10 1995/03/27 08:34:24 quinn
212 * Added dynamic server functionality.
213 * Released bindings to session.c (is now redundant)
215 * Revision 1.9 1995/03/22 15:01:26 quinn
216 * Adjusting record packing.
218 * Revision 1.8 1995/03/22 10:13:21 quinn
219 * Working on record packer
221 * Revision 1.7 1995/03/21 15:53:31 quinn
224 * Revision 1.6 1995/03/21 12:30:09 quinn
225 * Beginning to add support for record packing.
227 * Revision 1.5 1995/03/17 10:44:13 quinn
228 * Added catch of null-string in makediagrec
230 * Revision 1.4 1995/03/17 10:18:08 quinn
231 * Added memory management.
233 * Revision 1.3 1995/03/16 17:42:39 quinn
236 * Revision 1.2 1995/03/16 13:29:01 quinn
237 * Partitioned server.
239 * Revision 1.1 1995/03/15 16:02:10 quinn
240 * Modded session.c to seshigh.c
245 * Frontend server logic.
247 * This code receives incoming APDUs, and handles client requests by means
248 * of the backend API.
250 * Some of the code is getting quite involved, compared to simpler servers -
251 * primarily because it is asynchronous both in the communication with
252 * the user and the backend. We think the complexity will pay off in
253 * the form of greater flexibility when more asynchronous facilities
256 * Memory management has become somewhat involved. In the simple case, where
257 * only one PDU is pending at a time, it will simply reuse the same memory,
258 * once it has found its working size. When we enable multiple concurrent
259 * operations, perhaps even with multiple parallel calls to the backend, it
260 * will maintain a pool of buffers for encoding and decoding, trying to
261 * minimize memory allocation/deallocation during normal operation.
263 * TODOs include (and will be done in order of public interest):
265 * Support for EXPLAIN - provide simple meta-database system.
266 * Support for access control.
267 * Support for resource control.
268 * Support for extended services - primarily Item Order.
269 * Rest of Z39.50-1994
284 #include <comstack.h>
290 #include <statserv.h>
294 static int process_request(association *assoc, request *req);
295 void backend_response(IOCHAN i, int event);
296 static int process_response(association *assoc, request *req, Z_APDU *res);
297 static Z_APDU *process_initRequest(association *assoc, request *reqb);
298 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
300 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
301 bend_search_rr *bsrr, int *fd);
302 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
304 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
305 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
306 static void process_close(association *assoc, request *reqb);
307 void save_referenceId (request *reqb, Z_ReferenceId *refid);
308 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
311 static FILE *apduf = 0; /* for use in static mode */
312 static statserv_options_block *control_block = 0;
314 /* Chas: Added in from DALI */
315 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
316 /* Chas: End of addition from DALI */
319 * Create and initialize a new association-handle.
320 * channel : iochannel for the current line.
321 * link : communications channel.
322 * Returns: 0 or a new association handle.
324 association *create_association(IOCHAN channel, COMSTACK link)
329 control_block = statserv_getcontrol();
330 if (!(anew = (association *)xmalloc(sizeof(*anew))))
332 anew->client_chan = channel;
333 anew->client_link = link;
334 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
335 !(anew->encode = odr_createmem(ODR_ENCODE)))
337 if (*control_block->apdufile)
342 strcpy(filename, control_block->apdufile);
343 if (!(anew->print = odr_createmem(ODR_PRINT)))
345 if (*control_block->apdufile != '-')
347 strcpy(filename, control_block->apdufile);
348 if (!control_block->dynamic)
352 if (!(apduf = fopen(filename, "w")))
354 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
357 setvbuf(apduf, 0, _IONBF, 0);
363 sprintf(filename + strlen(filename), ".%d", getpid());
364 if (!(f = fopen(filename, "w")))
366 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
369 setvbuf(f, 0, _IONBF, 0);
371 odr_setprint(anew->print, f);
376 anew->input_buffer = 0;
377 anew->input_buffer_len = 0;
379 anew->state = ASSOC_NEW;
380 request_initq(&anew->incoming);
381 request_initq(&anew->outgoing);
382 anew->proto = cs_getproto(link);
387 * Free association and release resources.
389 void destroy_association(association *h)
391 odr_destroy(h->decode);
392 odr_destroy(h->encode);
394 odr_destroy(h->print);
396 xfree(h->input_buffer);
398 bend_close(h->backend);
399 while (request_deq(&h->incoming));
400 while (request_deq(&h->outgoing));
401 request_delq(&h->incoming);
402 request_delq(&h->outgoing);
406 static void do_close_req(association *a, int reason, char *message,
410 Z_Close *cls = zget_Close(a->encode);
412 /* Purge request queue */
413 while (request_deq(&a->incoming));
414 while (request_deq(&a->outgoing));
417 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
418 reason, message ? message : "none");
419 apdu.which = Z_APDU_close;
421 *cls->closeReason = reason;
422 cls->diagnosticInformation = message;
423 process_response(a, req, &apdu);
424 iochan_settimeout(a->client_chan, 60);
428 logf(LOG_DEBUG, "v2 client. No Close PDU");
429 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
431 a->state = ASSOC_DEAD;
434 static void do_close(association *a, int reason, char *message)
436 do_close_req (a, reason, message, request_get(&a->outgoing));
440 * This is where PDUs from the client are read and the further
441 * processing is initiated. Flow of control moves down through the
442 * various process_* functions below, until the encoded result comes back up
443 * to the output handler in here.
445 * h : the I/O channel that has an outstanding event.
446 * event : the current outstanding event.
448 void ir_session(IOCHAN h, int event)
451 association *assoc = (association *)iochan_getdata(h);
452 COMSTACK conn = assoc->client_link;
455 assert(h && conn && assoc);
456 if (event == EVENT_TIMEOUT)
458 if (assoc->state != ASSOC_UP)
460 logf(LOG_LOG, "Final timeout - closing connection.");
462 destroy_association(assoc);
467 logf(LOG_LOG, "Session idle too long. Sending close.");
468 do_close(assoc, Z_Close_lackOfActivity, 0);
472 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
474 if (event & EVENT_INPUT)
476 logf(LOG_DEBUG, "ir_session (input)");
477 assert(assoc && conn);
478 /* We aren't speaking to this fellow */
479 if (assoc->state == ASSOC_DEAD)
481 logf(LOG_LOG, "Closed connection after reject");
483 destroy_association(assoc);
487 if ((res = cs_get(conn, &assoc->input_buffer,
488 &assoc->input_buffer_len)) <= 0)
490 logf(LOG_LOG, "Connection closed by client");
492 destroy_association(assoc);
496 else if (res == 1) /* incomplete read - wait for more */
498 if (cs_more(conn)) /* more stuff - call us again later, please */
499 iochan_setevent(h, EVENT_INPUT);
501 /* we got a complete PDU. Let's decode it */
502 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
503 req = request_get(&assoc->incoming); /* get a new request structure */
504 odr_reset(assoc->decode);
505 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
506 if (!z_APDU(assoc->decode, &req->request, 0))
508 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
509 odr_errmsg(odr_geterror(assoc->decode)),
510 odr_offset(assoc->decode));
511 logf(LOG_LOG, "PDU dump:");
512 odr_dumpBER(log_file(), assoc->input_buffer, res);
513 do_close(assoc, Z_Close_protocolError, "Malformed package");
516 req->request_mem = odr_extract_mem(assoc->decode);
517 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
519 logf(LOG_WARN, "ODR print error: %s",
520 odr_errmsg(odr_geterror(assoc->print)));
521 odr_reset(assoc->print);
523 request_enq(&assoc->incoming, req);
526 /* can we do something yet? */
527 req = request_head(&assoc->incoming);
528 if (req->state == REQUEST_IDLE)
530 request_deq(&assoc->incoming);
531 if (process_request(assoc, req) < 0)
532 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
536 if (event & EVENT_OUTPUT)
538 request *req = request_head(&assoc->outgoing);
540 logf(LOG_DEBUG, "ir_session (output)");
541 req->state = REQUEST_PENDING;
542 switch (res = cs_put(conn, req->response, req->len_response))
545 logf(LOG_LOG, "Connection closed by client");
547 destroy_association(assoc);
550 case 0: /* all sent - release the request structure */
551 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
552 nmem_destroy(req->request_mem);
553 request_deq(&assoc->outgoing);
554 request_release(req);
555 if (!request_head(&assoc->outgoing))
556 iochan_clearflag(h, EVENT_OUTPUT);
558 /* value of 1 -- partial send -- is simply ignored */
561 if (event & EVENT_EXCEPT)
563 logf(LOG_DEBUG, "ir_session (exception)");
565 destroy_association(assoc);
571 * Initiate request processing.
573 static int process_request(association *assoc, request *req)
579 assert(req && req->state == REQUEST_IDLE);
580 switch (req->request->which)
582 case Z_APDU_initRequest:
583 res = process_initRequest(assoc, req); break;
584 case Z_APDU_searchRequest:
585 res = process_searchRequest(assoc, req, &fd); break;
586 case Z_APDU_presentRequest:
587 res = process_presentRequest(assoc, req, &fd); break;
588 case Z_APDU_scanRequest:
589 res = process_scanRequest(assoc, req, &fd); break;
590 case Z_APDU_extendedServicesRequest:
591 if (assoc->bend_esrequest)
592 res = process_ESRequest(assoc, req, &fd);
595 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
599 case Z_APDU_sortRequest:
600 if (assoc->bend_sort)
601 res = process_sortRequest(assoc, req, &fd);
604 logf(LOG_WARN, "Cannot handle SORT APDU");
609 process_close(assoc, req); return 0;
610 case Z_APDU_deleteResultSetRequest:
611 if (assoc->bend_delete)
612 res = process_deleteRequest(assoc, req, &fd);
615 logf (LOG_WARN, "Cannot handle Delete APDU");
620 logf(LOG_WARN, "Bad APDU received");
625 logf(LOG_DEBUG, " result immediately available");
626 retval = process_response(assoc, req, res);
630 logf(LOG_DEBUG, " result unavailble");
633 else /* no result yet - one will be provided later */
637 /* Set up an I/O handler for the fd supplied by the backend */
639 logf(LOG_DEBUG, " establishing handler for result");
640 req->state = REQUEST_PENDING;
641 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
643 iochan_setdata(chan, assoc);
650 * Handle message from the backend.
652 void backend_response(IOCHAN i, int event)
654 association *assoc = (association *)iochan_getdata(i);
655 request *req = request_head(&assoc->incoming);
659 logf(LOG_DEBUG, "backend_response");
660 assert(assoc && req && req->state != REQUEST_IDLE);
661 /* determine what it is we're waiting for */
662 switch (req->request->which)
664 case Z_APDU_searchRequest:
665 res = response_searchRequest(assoc, req, 0, &fd); break;
667 case Z_APDU_presentRequest:
668 res = response_presentRequest(assoc, req, 0, &fd); break;
669 case Z_APDU_scanRequest:
670 res = response_scanRequest(assoc, req, 0, &fd); break;
673 logf(LOG_WARN, "Serious programmer's lapse or bug");
676 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
678 logf(LOG_LOG, "Fatal error when talking to backend");
679 do_close(assoc, Z_Close_systemProblem, 0);
683 else if (!res) /* no result yet - try again later */
685 logf(LOG_DEBUG, " no result yet");
686 iochan_setfd(i, fd); /* in case fd has changed */
691 * Encode response, and transfer the request structure to the outgoing queue.
693 static int process_response(association *assoc, request *req, Z_APDU *res)
695 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
696 if (!z_APDU(assoc->encode, &res, 0))
698 logf(LOG_WARN, "ODR error when encoding response: %s",
699 odr_errmsg(odr_geterror(assoc->decode)));
700 odr_reset(assoc->encode);
703 req->response = odr_getbuf(assoc->encode, &req->len_response,
704 &req->size_response);
705 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
706 if (assoc->print && !z_APDU(assoc->print, &res, 0))
708 logf(LOG_WARN, "ODR print error: %s",
709 odr_errmsg(odr_geterror(assoc->print)));
710 odr_reset(assoc->print);
712 odr_reset(assoc->encode);
713 req->state = REQUEST_IDLE;
714 request_enq(&assoc->outgoing, req);
715 /* turn the work over to the ir_session handler */
716 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
717 /* Is there more work to be done? give that to the input handler too */
719 if (request_head(&assoc->incoming))
721 logf (LOG_DEBUG, "more work to be done");
722 iochan_setevent(assoc->client_chan, EVENT_WORK);
729 * Handle init request.
730 * At the moment, we don't check the options
731 * anywhere else in the code - we just try not to do anything that would
732 * break a naive client. We'll toss 'em into the association block when
733 * we need them there.
735 static Z_APDU *process_initRequest(association *assoc, request *reqb)
737 Z_InitRequest *req = reqb->request->u.initRequest;
738 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
739 Z_InitResponse *resp = apdu->u.initResponse;
740 bend_initrequest binitreq;
741 bend_initresult *binitres;
744 logf(LOG_LOG, "Got initRequest");
745 if (req->implementationId)
746 logf(LOG_LOG, "Id: %s", req->implementationId);
747 if (req->implementationName)
748 logf(LOG_LOG, "Name: %s", req->implementationName);
749 if (req->implementationVersion)
750 logf(LOG_LOG, "Version: %s", req->implementationVersion);
752 binitreq.stream = assoc->encode;
753 binitreq.configname = "default-config";
754 binitreq.auth = req->idAuthentication;
755 binitreq.bend_sort = NULL;
756 binitreq.bend_search = NULL;
757 binitreq.bend_present = NULL;
758 binitreq.bend_esrequest = NULL;
759 binitreq.bend_delete = NULL;
760 if (!(binitres = bend_init(&binitreq)))
762 logf(LOG_WARN, "Bad response from backend.");
766 assoc->backend = binitres->handle;
767 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
768 logf (LOG_DEBUG, "Sort handler installed");
769 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
770 logf (LOG_DEBUG, "Search handler installed");
771 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
772 logf (LOG_DEBUG, "Present handler installed");
773 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
774 logf (LOG_DEBUG, "ESRequest handler installed");
775 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
776 logf (LOG_DEBUG, "Delete handler installed");
778 resp->referenceId = req->referenceId;
780 /* let's tell the client what we can do */
781 if (ODR_MASK_GET(req->options, Z_Options_search))
783 ODR_MASK_SET(resp->options, Z_Options_search);
784 strcat(options, "srch");
786 if (ODR_MASK_GET(req->options, Z_Options_present))
788 ODR_MASK_SET(resp->options, Z_Options_present);
789 strcat(options, " prst");
791 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
793 ODR_MASK_SET(resp->options, Z_Options_delSet);
794 strcat(options, " del");
796 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
797 binitreq.bend_esrequest)
799 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
800 strcat (options, " extendedServices");
802 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
804 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
805 strcat(options, " namedresults");
807 if (ODR_MASK_GET(req->options, Z_Options_scan))
809 ODR_MASK_SET(resp->options, Z_Options_scan);
810 strcat(options, " scan");
812 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
814 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
815 strcat(options, " concurop");
817 if (ODR_MASK_GET(req->options, Z_Options_sort && binitreq.bend_sort))
819 ODR_MASK_SET(resp->options, Z_Options_sort);
820 strcat(options, " sort");
822 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
824 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
825 assoc->version = 2; /* 1 & 2 are equivalent */
827 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
829 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
832 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
834 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
837 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
838 assoc->maximumRecordSize = *req->maximumRecordSize;
839 if (assoc->maximumRecordSize > control_block->maxrecordsize)
840 assoc->maximumRecordSize = control_block->maxrecordsize;
841 assoc->preferredMessageSize = *req->preferredMessageSize;
842 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
843 assoc->preferredMessageSize = assoc->maximumRecordSize;
844 resp->preferredMessageSize = &assoc->preferredMessageSize;
845 resp->maximumRecordSize = &assoc->maximumRecordSize;
846 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
847 if (binitres->errcode)
849 logf(LOG_LOG, "Connection rejected by backend.");
851 assoc->state = ASSOC_DEAD;
854 assoc->state = ASSOC_UP;
859 * These functions should be merged.
862 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
865 dr->which = Z_DefaultDiagFormat_v2Addinfo;
866 dr->u.v2Addinfo = addinfo ? addinfo : "";
868 dr->which = Z_DiagForm_v2AddInfo;
869 dr->addinfo = addinfo ? addinfo : "";
874 * nonsurrogate diagnostic record.
876 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
879 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
881 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
882 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
883 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
885 bib1.proto = assoc->proto;
886 bib1.oclass = CLASS_DIAGSET;
887 bib1.value = VAL_BIB1;
889 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
892 rec->which = Z_Records_NSD;
894 rec->u.nonSurrogateDiagnostic = dr;
897 rec->u.nonSurrogateDiagnostic = drec;
898 drec->which = Z_DiagRec_defaultFormat;
899 drec->u.defaultFormat = dr;
901 rec->u.nonSurrogateDiagnostic = dr;
904 dr->diagnosticSetId = odr_oiddup (assoc->encode,
905 oid_ent_to_oid(&bib1, oid));
907 set_addinfo (dr, addinfo);
912 * surrogate diagnostic.
914 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
915 int error, char *addinfo)
918 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
919 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
921 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
922 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
924 bib1.proto = assoc->proto;
925 bib1.oclass = CLASS_DIAGSET;
926 bib1.value = VAL_BIB1;
928 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
930 rec->databaseName = dbname;
931 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
932 rec->u.surrogateDiagnostic = drec;
933 drec->which = Z_DiagRec_defaultFormat;
934 drec->u.defaultFormat = dr;
935 dr->diagnosticSetId = odr_oiddup (assoc->encode,
936 oid_ent_to_oid(&bib1, oid));
938 set_addinfo (dr, addinfo);
944 * multiple nonsurrogate diagnostics.
946 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
949 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
950 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
952 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
953 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
954 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
956 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
957 bib1.proto = assoc->proto;
958 bib1.oclass = CLASS_DIAGSET;
959 bib1.value = VAL_BIB1;
962 recs->num_diagRecs = 1;
963 recs->diagRecs = recp;
965 drec->which = Z_DiagRec_defaultFormat;
966 drec->u.defaultFormat = rec;
968 rec->diagnosticSetId = odr_oiddup (assoc->encode,
969 oid_ent_to_oid(&bib1, oid));
970 rec->condition = err;
973 rec->which = Z_DefaultDiagFormat_v2Addinfo;
974 rec->u.v2Addinfo = addinfo ? addinfo : "";
976 rec->which = Z_DiagForm_v2AddInfo;
977 rec->addinfo = addinfo ? addinfo : "";
982 static Z_Records *pack_records(association *a, char *setname, int start,
983 int *num, Z_RecordComposition *comp,
984 int *next, int *pres, oid_value format)
987 int recno, total_length = 0, toget = *num, dumped_records = 0;
988 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
989 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
990 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
993 records->which = Z_Records_DBOSD;
994 records->u.databaseOrSurDiagnostics = reclist;
995 reclist->num_records = 0;
996 reclist->records = list;
997 *pres = Z_PRES_SUCCESS;
1001 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
1002 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1003 a->maximumRecordSize);
1004 for (recno = start; reclist->num_records < toget; recno++)
1006 bend_fetchrequest freq;
1007 bend_fetchresult *fres;
1008 Z_NamePlusRecord *thisrec;
1009 Z_DatabaseRecord *thisext;
1010 int this_length = 0;
1013 * we get the number of bytes allocated on the stream before any
1014 * allocation done by the backend - this should give us a reasonable
1015 * idea of the total size of the data so far.
1017 total_length = odr_total(a->encode) - dumped_records;
1018 freq.setname = setname;
1019 freq.number = recno;
1021 freq.format = format;
1022 freq.stream = a->encode;
1023 freq.surrogate_flag = 0;
1024 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1026 *pres = Z_PRES_FAILURE;
1027 return diagrec(a, 2, "Backend interface problem");
1029 /* backend should be able to signal whether error is system-wide
1030 or only pertaining to current record */
1033 if (!freq.surrogate_flag)
1035 *pres = Z_PRES_FAILURE;
1036 return diagrec(a, fres->errcode, fres->errstring);
1038 reclist->records[reclist->num_records] =
1039 surrogatediagrec(a, fres->basename, fres->errcode,
1041 reclist->num_records++;
1042 *next = fres->last_in_set ? 0 : recno + 1;
1046 this_length = fres->len;
1048 this_length = odr_total(a->encode) - total_length;
1049 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1050 this_length, total_length);
1051 if (this_length + total_length > a->preferredMessageSize)
1053 /* record is small enough, really */
1054 if (this_length <= a->preferredMessageSize)
1056 logf(LOG_DEBUG, " Dropped last normal-sized record");
1057 *pres = Z_PRES_PARTIAL_2;
1060 /* record can only be fetched by itself */
1061 if (this_length < a->maximumRecordSize)
1063 logf(LOG_DEBUG, " Record > prefmsgsz");
1066 logf(LOG_DEBUG, " Dropped it");
1067 reclist->records[reclist->num_records] =
1068 surrogatediagrec(a, fres->basename, 16, 0);
1069 reclist->num_records++;
1070 *next = fres->last_in_set ? 0 : recno + 1;
1071 dumped_records += this_length;
1075 else /* too big entirely */
1077 logf(LOG_DEBUG, "Record > maxrcdsz");
1078 reclist->records[reclist->num_records] =
1079 surrogatediagrec(a, fres->basename, 17, 0);
1080 reclist->num_records++;
1081 *next = fres->last_in_set ? 0 : recno + 1;
1082 dumped_records += this_length;
1087 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1089 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1090 strlen(fres->basename) + 1)))
1092 strcpy(thisrec->databaseName, fres->basename);
1093 thisrec->which = Z_NamePlusRecord_databaseRecord;
1094 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1095 sizeof(Z_DatabaseRecord))))
1097 recform.proto = a->proto;
1098 recform.oclass = CLASS_RECSYN;
1099 recform.value = fres->format;
1100 thisext->direct_reference = odr_oiddup(a->encode,
1101 oid_ent_to_oid(&recform, oid));
1102 thisext->indirect_reference = 0;
1103 thisext->descriptor = 0;
1104 if (fres->len < 0) /* Structured data */
1106 switch (fres->format)
1108 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1109 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1110 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1112 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1113 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1116 logf(LOG_FATAL, "Unknown structured format from backend.");
1121 * We cheat on the pointers here. Obviously, the record field
1122 * of the backend-fetch structure should have been a union for
1123 * correctness, but we're stuck with this for backwards
1126 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1128 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1131 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1133 memcpy(sutrs, fres->record, fres->len);
1134 sutrs[fres->len] = '\0';
1136 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1138 thisext->which = Z_External_sutrs;
1139 thisext->u.sutrs = sutrs;
1140 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1141 sutrs->len = sutrs->size = fres->len;
1142 memcpy(sutrs->buf, fres->record, fres->len);
1145 else /* octet-aligned record. */
1147 thisext->which = Z_External_octet;
1148 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1151 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1154 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1155 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1158 reclist->records[reclist->num_records] = thisrec;
1159 reclist->num_records++;
1160 *next = fres->last_in_set ? 0 : recno + 1;
1162 *num = reclist->num_records;
1166 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1169 Z_SearchRequest *req = reqb->request->u.searchRequest;
1170 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1172 logf(LOG_LOG, "Got SearchRequest.");
1173 save_referenceId (reqb, req->referenceId);
1174 /* store ref id in request */
1176 bsrr->request = reqb;
1177 bsrr->association = assoc;
1178 if (assoc->bend_search)
1180 bsrr->setname = req->resultSetName;
1181 bsrr->replace_set = *req->replaceIndicator;
1182 bsrr->num_bases = req->num_databaseNames;
1183 bsrr->basenames = req->databaseNames;
1184 bsrr->query = req->query;
1185 bsrr->stream = assoc->encode;
1188 bsrr->errstring = NULL;
1189 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1195 bend_searchrequest bsrq;
1196 bend_searchresult *bsrt;
1198 bsrq.setname = req->resultSetName;
1199 bsrq.replace_set = *req->replaceIndicator;
1200 bsrq.num_bases = req->num_databaseNames;
1201 bsrq.basenames = req->databaseNames;
1202 bsrq.query = req->query;
1203 bsrq.stream = assoc->encode;
1204 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1206 bsrr->hits = bsrt->hits;
1207 bsrr->errcode = bsrt->errcode;
1208 bsrr->errstring = bsrt->errstring;
1210 return response_searchRequest(assoc, reqb, bsrr, fd);
1213 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1216 * Prepare a searchresponse based on the backend results. We probably want
1217 * to look at making the fetching of records nonblocking as well, but
1218 * so far, we'll keep things simple.
1219 * If bsrt is null, that means we're called in response to a communications
1220 * event, and we'll have to get the response for ourselves.
1222 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1223 bend_search_rr *bsrt, int *fd)
1225 Z_SearchRequest *req = reqb->request->u.searchRequest;
1226 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1227 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1228 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1229 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1230 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1231 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1238 apdu->which = Z_APDU_searchResponse;
1239 apdu->u.searchResponse = resp;
1240 resp->referenceId = req->referenceId;
1241 resp->additionalSearchInfo = 0;
1242 resp->otherInfo = 0;
1244 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1246 logf(LOG_FATAL, "Bad result from backend");
1249 else if (bsrt->errcode)
1251 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1252 resp->resultCount = nulint;
1253 resp->numberOfRecordsReturned = nulint;
1254 resp->nextResultSetPosition = nulint;
1255 resp->searchStatus = nulint;
1256 resp->resultSetStatus = none;
1257 resp->presentStatus = 0;
1261 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1262 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1263 Z_RecordComposition comp, *compp = 0;
1268 resp->resultCount = &bsrt->hits;
1270 comp.which = Z_RecordComp_simple;
1271 /* how many records does the user agent want, then? */
1272 if (bsrt->hits <= *req->smallSetUpperBound)
1274 *toget = bsrt->hits;
1275 if ((comp.u.simple = req->smallSetElementSetNames))
1278 else if (bsrt->hits < *req->largeSetLowerBound)
1280 *toget = *req->mediumSetPresentNumber;
1281 if (*toget > bsrt->hits)
1282 *toget = bsrt->hits;
1283 if ((comp.u.simple = req->mediumSetElementSetNames))
1289 if (*toget && !resp->records)
1294 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1295 prefformat->oclass != CLASS_RECSYN)
1298 form = prefformat->value;
1299 resp->records = pack_records(assoc, req->resultSetName, 1,
1300 toget, compp, next, presst, form);
1303 resp->numberOfRecordsReturned = toget;
1304 resp->nextResultSetPosition = next;
1305 resp->searchStatus = sr;
1306 resp->resultSetStatus = 0;
1307 resp->presentStatus = presst;
1311 if (*resp->resultCount)
1313 resp->numberOfRecordsReturned = nulint;
1314 resp->nextResultSetPosition = next;
1315 resp->searchStatus = sr;
1316 resp->resultSetStatus = 0;
1317 resp->presentStatus = 0;
1324 * Maybe we got a little over-friendly when we designed bend_fetch to
1325 * get only one record at a time. Some backends can optimise multiple-record
1326 * fetches, and at any rate, there is some overhead involved in
1327 * all that selecting and hopping around. Problem is, of course, that the
1328 * frontend can't know ahead of time how many records it'll need to
1329 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1330 * is downright lousy as a bulk data transfer protocol.
1332 * To start with, we'll do the fetching of records from the backend
1333 * in one operation: To save some trips in and out of the event-handler,
1334 * and to simplify the interface to pack_records. At any rate, asynch
1335 * operation is more fun in operations that have an unpredictable execution
1336 * speed - which is normally more true for search than for present.
1338 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1341 Z_PresentRequest *req = reqb->request->u.presentRequest;
1345 Z_PresentResponse *resp;
1350 logf(LOG_LOG, "Got PresentRequest.");
1352 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1353 prefformat->oclass != CLASS_RECSYN)
1356 form = prefformat->value;
1357 if (assoc->bend_present)
1359 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1360 bprr->setname = req->resultSetId;
1361 bprr->start = *req->resultSetStartPoint;
1362 bprr->number = *req->numberOfRecordsRequested;
1363 bprr->format = form;
1364 bprr->comp = req->recordComposition;
1365 bprr->stream = assoc->encode;
1366 bprr->request = reqb;
1367 bprr->association = assoc;
1369 bprr->errstring = NULL;
1370 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1375 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1376 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1377 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1378 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1379 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1382 *num = *req->numberOfRecordsRequested;
1384 apdu->which = Z_APDU_presentResponse;
1385 apdu->u.presentResponse = resp;
1386 resp->referenceId = req->referenceId;
1387 resp->otherInfo = 0;
1390 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1391 num, req->recordComposition, next, presst, form);
1394 resp->numberOfRecordsReturned = num;
1395 resp->presentStatus = presst;
1396 resp->nextResultSetPosition = next;
1402 * Scan was implemented rather in a hurry, and with support for only the basic
1403 * elements of the service in the backend API. Suggestions are welcome.
1405 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1407 Z_ScanRequest *req = reqb->request->u.scanRequest;
1408 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1409 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1410 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1411 int *numberOfEntriesReturned =
1412 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1413 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1414 Z_DiagRecs *diagrecs_p = NULL;
1416 bend_scanrequest srq;
1417 bend_scanresult *srs;
1420 logf(LOG_LOG, "Got ScanRequest");
1421 *scanStatus = Z_Scan_failure;
1422 *numberOfEntriesReturned = 0;
1424 apdu->which = Z_APDU_scanResponse;
1425 apdu->u.scanResponse = res;
1426 res->referenceId = req->referenceId;
1428 res->scanStatus = scanStatus;
1429 res->numberOfEntriesReturned = numberOfEntriesReturned;
1430 res->positionOfTerm = 0;
1431 res->entries = ents;
1433 ents->num_entries = 0;
1434 ents->entries = NULL;
1435 ents->num_nonsurrogateDiagnostics = 0;
1436 ents->nonsurrogateDiagnostics = NULL;
1438 ents->which = Z_ListEntries_entries;
1440 res->attributeSet = 0;
1443 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1444 attent->oclass != CLASS_ATTSET
1445 || attent->value != VAL_BIB1))
1446 diagrecs_p = diagrecs(assoc, 121, 0);
1447 else if (req->stepSize && *req->stepSize > 0)
1448 diagrecs_p = diagrecs(assoc, 205, 0);
1451 if (req->termListAndStartPoint->term->which == Z_Term_general)
1452 logf(LOG_DEBUG, " term: '%.*s'",
1453 req->termListAndStartPoint->term->u.general->len,
1454 req->termListAndStartPoint->term->u.general->buf);
1455 srq.num_bases = req->num_databaseNames;
1456 srq.basenames = req->databaseNames;
1457 srq.num_entries = *req->numberOfTermsRequested;
1458 srq.term = req->termListAndStartPoint;
1459 srq.stream = assoc->encode;
1460 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1461 attset->oclass != CLASS_RECSYN)
1462 srq.attributeset = VAL_NONE;
1464 srq.attributeset = attset->value;
1465 srq.term_position = req->preferredPositionInResponse ?
1466 *req->preferredPositionInResponse : 1;
1467 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1468 diagrecs_p = diagrecs(assoc, 2, 0);
1469 else if (srs->errcode)
1470 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1476 Z_Entries *list = (Z_Entries *)
1477 odr_malloc (assoc->encode, sizeof(*list));
1479 Z_Entry **tab = (Z_Entry **)
1480 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1482 if (srs->status == BEND_SCAN_PARTIAL)
1483 *scanStatus = Z_Scan_partial_5;
1485 *scanStatus = Z_Scan_success;
1487 ents->entries = tab;
1488 ents->num_entries = srs->num_entries;
1489 res->numberOfEntriesReturned = &ents->num_entries;
1491 ents->u.entries = list;
1492 list->entries = tab;
1493 list->num_entries = srs->num_entries;
1494 res->numberOfEntriesReturned = &list->num_entries;
1496 res->positionOfTerm = &srs->term_position;
1497 for (i = 0; i < srs->num_entries; i++)
1503 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1504 e->which = Z_Entry_termInfo;
1505 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1506 t->suggestedAttributes = 0;
1508 t->alternativeTerm = 0;
1509 t->byAttributes = 0;
1510 t->otherTermInfo = 0;
1511 t->globalOccurrences = &srs->entries[i].occurrences;
1512 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1513 t->term->which = Z_Term_general;
1514 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1516 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1517 strlen(srs->entries[i].term));
1518 memcpy(o->buf, srs->entries[i].term, o->len);
1519 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1520 srs->entries[i].term, srs->entries[i].occurrences);
1527 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1528 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1530 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1531 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1537 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1540 Z_SortRequest *req = reqb->request->u.sortRequest;
1541 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1542 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1544 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1546 logf(LOG_LOG, "Got SortRequest.");
1549 bsrr->num_input_setnames = req->num_inputResultSetNames;
1550 bsrr->input_setnames = req->inputResultSetNames;
1552 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1553 bsrr->input_setnames = req->inputResultSetNames->strings;
1555 bsrr->output_setname = req->sortedResultSetName;
1556 bsrr->sort_sequence = req->sortSequence;
1557 bsrr->stream = assoc->encode;
1559 bsrr->sort_status = Z_SortStatus_failure;
1561 bsrr->errstring = 0;
1563 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1565 res->referenceId = req->referenceId;
1566 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1567 *res->sortStatus = bsrr->sort_status;
1568 res->resultSetStatus = 0;
1571 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1573 res->diagnostics = dr->diagRecs;
1574 res->num_diagnostics = dr->num_diagRecs;
1576 res->diagnostics = dr;
1582 res->num_diagnostics = 0;
1584 res->diagnostics = 0;
1588 apdu->which = Z_APDU_sortResponse;
1589 apdu->u.sortResponse = res;
1593 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1596 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1597 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1598 odr_malloc (assoc->encode, sizeof(*res));
1599 bend_delete_rr *bdrr = (bend_delete_rr *)
1600 odr_malloc (assoc->encode, sizeof(*bdrr));
1601 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1603 logf(LOG_LOG, "Got DeleteRequest.");
1605 bdrr->num_setnames = req->num_ids;
1606 bdrr->setnames = req->resultSetList;
1607 bdrr->stream = assoc->encode;
1608 bdrr->function = *req->deleteFunction;
1610 ((int (*)(void *, bend_delete_rr *))
1611 (*assoc->bend_delete))(assoc->backend, bdrr);
1613 res->referenceId = req->referenceId;
1615 res->deleteOperationStatus = (int *)
1616 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1617 *res->deleteOperationStatus = bdrr->delete_status;
1619 res->num_statuses = 0;
1620 res->deleteListStatuses = 0;
1621 res->numberNotDeleted = 0;
1622 res->num_bulkStatuses = 0;
1623 res->bulkStatuses = 0;
1624 res->deleteMessage = 0;
1627 apdu->which = Z_APDU_deleteResultSetResponse;
1628 apdu->u.deleteResultSetResponse = res;
1632 static void process_close(association *assoc, request *reqb)
1634 Z_Close *req = reqb->request->u.close;
1635 static char *reasons[] =
1642 "securityViolation",
1649 logf(LOG_LOG, "Got Close, reason %s, message %s",
1650 reasons[*req->closeReason], req->diagnosticInformation ?
1651 req->diagnosticInformation : "NULL");
1652 if (assoc->version < 3) /* to make do_force respond with close */
1654 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1658 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1662 reqb->len_refid = refid->len;
1663 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1664 memcpy (reqb->refid, refid->buf, refid->len);
1668 reqb->len_refid = 0;
1673 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1675 process_response (a, req, res);
1678 bend_request bend_request_mk (bend_association a)
1680 request *nreq = request_get (&a->outgoing);
1681 nreq->request_mem = nmem_create ();
1685 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1690 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1691 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1692 id->len = id->size = req->len_refid;
1693 memcpy (id->buf, req->refid, req->len_refid);
1697 void bend_request_destroy (bend_request *req)
1699 nmem_destroy((*req)->request_mem);
1700 request_release(*req);
1704 int bend_backend_respond (bend_association a, bend_request req)
1706 return process_request (a, req);
1709 void bend_request_setdata(bend_request r, void *p)
1714 void *bend_request_getdata(bend_request r)
1716 return r->clientData;
1719 /* Chas: Added in from DALI */
1720 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1722 bend_esrequest_rr esrequest;
1724 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1725 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1727 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1729 logf(LOG_DEBUG,"inside Process esRequest");
1731 esrequest.esr = reqb->request->u.extendedServicesRequest;
1732 esrequest.stream = assoc->encode;
1733 esrequest.errcode = 0;
1734 esrequest.errstring = NULL;
1735 esrequest.request = reqb;
1736 esrequest.association = assoc;
1738 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1741 /* If the response is being delayed, return NULL */
1742 if (esrequest.request == NULL)
1745 resp->referenceId = req->referenceId;
1747 if ( esrequest.errcode == 0 )
1749 /* Backend service indicates request will be processed */
1750 logf(LOG_DEBUG,"Request will be processed...Good !");
1751 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1755 /* Backend indicates error, request will not be processed */
1756 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1757 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1759 /* Do something with the members of bend_extendedservice */
1761 logf(LOG_DEBUG,"Send the result apdu");
1766 /* Chas: End of addition from DALI */