2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.92 1999-06-17 10:54:45 adam
8 * Added facility to specify implementation version - and name
11 * Revision 1.91 1999/06/01 14:29:12 adam
12 * Work on Extended Services.
14 * Revision 1.90 1999/05/27 13:02:20 adam
15 * Assigned OID for old DB Update (VAL_DBUPDATE0).
17 * Revision 1.89 1999/05/26 15:24:26 adam
18 * Fixed minor bugs regarding DB Update (introduced by previous commit).
20 * Revision 1.88 1999/04/20 09:56:48 adam
21 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
22 * Modified all encoders/decoders to reflect this change.
24 * Revision 1.87 1999/03/31 11:18:25 adam
25 * Implemented odr_strdup. Added Reference ID to backend server API.
27 * Revision 1.86 1999/02/02 13:57:38 adam
28 * Uses preprocessor define WIN32 instead of WINDOWS to build code
29 * for Microsoft WIN32.
31 * Revision 1.85 1998/11/17 09:52:59 adam
32 * Fixed minor bug (introduced by previous commit).
34 * Revision 1.84 1998/11/16 16:02:32 adam
35 * Added loggin utilies, log_rpn_query and log_scan_term. These used
36 * to be part of Zebra.
38 * Revision 1.83 1998/11/03 10:09:36 adam
39 * Fixed bug regarding YC.
41 * Revision 1.82 1998/10/20 14:00:30 quinn
44 * Revision 1.81 1998/10/13 16:12:24 adam
45 * Added support for Surrogate Diagnostics for Scan Term entries.
47 * Revision 1.80 1998/09/02 12:41:53 adam
48 * Added decode stream in bend search structures.
50 * Revision 1.79 1998/08/19 16:10:08 adam
51 * Changed som member names of DeleteResultSetRequest/Response.
53 * Revision 1.78 1998/08/03 10:23:55 adam
54 * Fixed bug regarding Options for Sort.
56 * Revision 1.77 1998/07/20 12:38:42 adam
57 * Implemented delete result set service to server API.
59 * Revision 1.76 1998/05/27 16:57:07 adam
60 * Support for surrogate diagnostic records added for bend_fetch.
62 * Revision 1.75 1998/05/18 10:13:07 adam
63 * Fixed call to es_request handler - extra argument was passed.
65 * Revision 1.74 1998/03/31 15:13:20 adam
66 * Development towards compiled ASN.1.
68 * Revision 1.73 1998/03/31 11:07:45 adam
69 * Furhter work on UNIverse resource report.
70 * Added Extended Services handling in frontend server.
72 * Revision 1.72 1998/02/11 11:53:35 adam
73 * Changed code so that it compiles as C++.
75 * Revision 1.71 1998/02/10 11:03:57 adam
76 * Added support for extended handlers in backend server interface.
78 * Revision 1.70 1998/01/29 13:15:35 adam
79 * Implemented sort for the backend interface.
81 * Revision 1.69 1997/09/30 11:48:12 adam
82 * Fixed bug introduced by previous commit.
84 * Revision 1.68 1997/09/29 13:18:59 adam
85 * Added function, oid_ent_to_oid, to replace the function
86 * oid_getoidbyent, which is not thread safe.
88 * Revision 1.67 1997/09/17 12:10:40 adam
91 * Revision 1.66 1997/09/05 15:26:44 adam
92 * Added ODR encode in search and scen bend request structures.
93 * Fixed a few enums that caused trouble with C++.
95 * Revision 1.65 1997/09/01 08:53:01 adam
96 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
97 * moved a separate directory. MSV5.0 project server.dsp created.
98 * As an option, the server can now operate as an NT service.
100 * Revision 1.64 1997/04/30 08:52:11 quinn
103 * Revision 1.63 1996/10/11 11:57:26 quinn
106 * Revision 1.62 1996/07/06 19:58:35 quinn
107 * System headerfiles gathered in yconfig
109 * Revision 1.61 1996/06/10 08:56:16 quinn
112 * Revision 1.60 1996/05/30 11:03:10 quinn
113 * Fixed NextresultSetPosition bug fixed.
115 * Revision 1.59 1996/05/14 09:26:46 quinn
116 * Added attribute set to scan backend
118 * Revision 1.58 1996/02/20 12:53:04 quinn
121 * Revision 1.57 1996/01/02 08:57:47 quinn
122 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
124 * Revision 1.56 1995/12/14 11:09:57 quinn
127 * Revision 1.55 1995/11/08 17:41:37 quinn
130 * Revision 1.54 1995/11/08 15:11:29 quinn
131 * Log of close transmit.
133 * Revision 1.53 1995/11/01 13:54:58 quinn
136 * Revision 1.52 1995/11/01 12:19:13 quinn
137 * Second attempt to fix same bug.
139 * Revision 1.50 1995/10/25 16:58:32 quinn
142 * Revision 1.49 1995/10/16 13:51:53 quinn
143 * Changes to provide Especs to the backend.
145 * Revision 1.48 1995/10/06 08:51:20 quinn
146 * Added Write-buffer.
148 * Revision 1.47 1995/08/29 14:24:16 quinn
149 * Added second half of close-handshake
151 * Revision 1.46 1995/08/29 11:17:58 quinn
152 * Added code to receive close
154 * Revision 1.45 1995/08/21 09:11:00 quinn
155 * Smallish fixes to suppport new formats.
157 * Revision 1.44 1995/08/17 12:45:25 quinn
158 * Fixed minor problems with GRS-1. Added support in c&s.
160 * Revision 1.43 1995/08/15 12:00:31 quinn
163 * Revision 1.42 1995/08/15 11:16:50 quinn
165 * Revision 1.41 1995/08/02 10:23:06 quinn
168 * Revision 1.40 1995/07/31 14:34:26 quinn
169 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
171 * Revision 1.39 1995/06/27 13:21:00 quinn
174 * Revision 1.38 1995/06/19 12:39:11 quinn
175 * Fixed bug in timeout code. Added BER dumper.
177 * Revision 1.37 1995/06/16 13:16:14 quinn
178 * Fixed Defaultdiagformat.
180 * Revision 1.36 1995/06/16 10:31:36 quinn
181 * Added session timeout.
183 * Revision 1.35 1995/06/15 07:45:14 quinn
186 * Revision 1.34 1995/06/14 15:26:46 quinn
187 * *** empty log message ***
189 * Revision 1.33 1995/06/06 14:57:05 quinn
190 * Better diagnostics.
192 * Revision 1.32 1995/06/06 08:41:44 quinn
193 * Better diagnostics.
195 * Revision 1.31 1995/06/06 08:15:37 quinn
198 * Revision 1.30 1995/06/05 10:53:32 quinn
199 * Added a better SCAN.
201 * Revision 1.29 1995/06/01 11:25:03 quinn
204 * Revision 1.28 1995/06/01 11:21:01 quinn
205 * Attempting to fix a bug in pack-records. replaced break with continue
206 * for large records, according to standard.
208 * Revision 1.27 1995/05/29 08:12:06 quinn
211 * Revision 1.26 1995/05/18 13:02:12 quinn
214 * Revision 1.25 1995/05/17 08:42:26 quinn
215 * Transfer auth info to backend. Allow backend to reject init gracefully.
217 * Revision 1.24 1995/05/16 08:51:04 quinn
218 * License, documentation, and memory fixes
220 * Revision 1.23 1995/05/15 13:25:10 quinn
223 * Revision 1.22 1995/05/15 11:56:39 quinn
224 * Asynchronous facilities. Restructuring of seshigh code.
226 * Revision 1.21 1995/05/02 08:53:19 quinn
227 * Trying in vain to fix comm with ISODE
229 * Revision 1.20 1995/04/20 15:13:00 quinn
232 * Revision 1.19 1995/04/18 08:15:34 quinn
233 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
234 * neater. We'll make the same change for decoding one day.
236 * Revision 1.18 1995/04/17 11:28:25 quinn
239 * Revision 1.17 1995/04/10 10:23:36 quinn
240 * Some work to add scan and other things.
242 * Revision 1.16 1995/03/31 09:18:55 quinn
245 * Revision 1.15 1995/03/30 14:03:23 quinn
246 * Added RFC1006 as separate library
248 * Revision 1.14 1995/03/30 12:18:17 quinn
251 * Revision 1.13 1995/03/30 09:09:24 quinn
252 * Added state-handle and some support for asynchronous activities.
254 * Revision 1.12 1995/03/29 15:40:16 quinn
255 * Ongoing work. Statserv is now dynamic by default
257 * Revision 1.11 1995/03/28 09:16:21 quinn
258 * Added record packing to the search request
260 * Revision 1.10 1995/03/27 08:34:24 quinn
261 * Added dynamic server functionality.
262 * Released bindings to session.c (is now redundant)
264 * Revision 1.9 1995/03/22 15:01:26 quinn
265 * Adjusting record packing.
267 * Revision 1.8 1995/03/22 10:13:21 quinn
268 * Working on record packer
270 * Revision 1.7 1995/03/21 15:53:31 quinn
273 * Revision 1.6 1995/03/21 12:30:09 quinn
274 * Beginning to add support for record packing.
276 * Revision 1.5 1995/03/17 10:44:13 quinn
277 * Added catch of null-string in makediagrec
279 * Revision 1.4 1995/03/17 10:18:08 quinn
280 * Added memory management.
282 * Revision 1.3 1995/03/16 17:42:39 quinn
285 * Revision 1.2 1995/03/16 13:29:01 quinn
286 * Partitioned server.
288 * Revision 1.1 1995/03/15 16:02:10 quinn
289 * Modded session.c to seshigh.c
294 * Frontend server logic.
296 * This code receives incoming APDUs, and handles client requests by means
297 * of the backend API.
299 * Some of the code is getting quite involved, compared to simpler servers -
300 * primarily because it is asynchronous both in the communication with
301 * the user and the backend. We think the complexity will pay off in
302 * the form of greater flexibility when more asynchronous facilities
305 * Memory management has become somewhat involved. In the simple case, where
306 * only one PDU is pending at a time, it will simply reuse the same memory,
307 * once it has found its working size. When we enable multiple concurrent
308 * operations, perhaps even with multiple parallel calls to the backend, it
309 * will maintain a pool of buffers for encoding and decoding, trying to
310 * minimize memory allocation/deallocation during normal operation.
312 * TODOs include (and will be done in order of public interest):
314 * Support for EXPLAIN - provide simple meta-database system.
315 * Support for access control.
316 * Support for resource control.
317 * Support for extended services - primarily Item Order.
318 * Rest of Z39.50-1994
333 #include <comstack.h>
340 #include <statserv.h>
344 static int process_request(association *assoc, request *req);
345 void backend_response(IOCHAN i, int event);
346 static int process_response(association *assoc, request *req, Z_APDU *res);
347 static Z_APDU *process_initRequest(association *assoc, request *reqb);
348 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
350 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
351 bend_search_rr *bsrr, int *fd);
352 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
354 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
355 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
356 static void process_close(association *assoc, request *reqb);
357 void save_referenceId (request *reqb, Z_ReferenceId *refid);
358 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
361 static FILE *apduf = 0; /* for use in static mode */
362 static statserv_options_block *control_block = 0;
364 /* Chas: Added in from DALI */
365 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
366 /* Chas: End of addition from DALI */
369 * Create and initialize a new association-handle.
370 * channel : iochannel for the current line.
371 * link : communications channel.
372 * Returns: 0 or a new association handle.
374 association *create_association(IOCHAN channel, COMSTACK link)
379 control_block = statserv_getcontrol();
380 if (!(anew = (association *)xmalloc(sizeof(*anew))))
382 anew->client_chan = channel;
383 anew->client_link = link;
384 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
385 !(anew->encode = odr_createmem(ODR_ENCODE)))
387 if (*control_block->apdufile)
392 strcpy(filename, control_block->apdufile);
393 if (!(anew->print = odr_createmem(ODR_PRINT)))
395 if (*control_block->apdufile != '-')
397 strcpy(filename, control_block->apdufile);
398 if (!control_block->dynamic)
402 if (!(apduf = fopen(filename, "w")))
404 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
407 setvbuf(apduf, 0, _IONBF, 0);
413 sprintf(filename + strlen(filename), ".%d", getpid());
414 if (!(f = fopen(filename, "w")))
416 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
419 setvbuf(f, 0, _IONBF, 0);
421 odr_setprint(anew->print, f);
426 anew->input_buffer = 0;
427 anew->input_buffer_len = 0;
429 anew->state = ASSOC_NEW;
430 request_initq(&anew->incoming);
431 request_initq(&anew->outgoing);
432 anew->proto = cs_getproto(link);
437 * Free association and release resources.
439 void destroy_association(association *h)
441 odr_destroy(h->decode);
442 odr_destroy(h->encode);
444 odr_destroy(h->print);
446 xfree(h->input_buffer);
448 bend_close(h->backend);
449 while (request_deq(&h->incoming));
450 while (request_deq(&h->outgoing));
451 request_delq(&h->incoming);
452 request_delq(&h->outgoing);
456 static void do_close_req(association *a, int reason, char *message,
460 Z_Close *cls = zget_Close(a->encode);
462 /* Purge request queue */
463 while (request_deq(&a->incoming));
464 while (request_deq(&a->outgoing));
467 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
468 reason, message ? message : "none");
469 apdu.which = Z_APDU_close;
471 *cls->closeReason = reason;
472 cls->diagnosticInformation = message;
473 process_response(a, req, &apdu);
474 iochan_settimeout(a->client_chan, 60);
478 logf(LOG_DEBUG, "v2 client. No Close PDU");
479 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
481 a->state = ASSOC_DEAD;
484 static void do_close(association *a, int reason, char *message)
486 do_close_req (a, reason, message, request_get(&a->outgoing));
490 * This is where PDUs from the client are read and the further
491 * processing is initiated. Flow of control moves down through the
492 * various process_* functions below, until the encoded result comes back up
493 * to the output handler in here.
495 * h : the I/O channel that has an outstanding event.
496 * event : the current outstanding event.
498 void ir_session(IOCHAN h, int event)
501 association *assoc = (association *)iochan_getdata(h);
502 COMSTACK conn = assoc->client_link;
505 assert(h && conn && assoc);
506 if (event == EVENT_TIMEOUT)
508 if (assoc->state != ASSOC_UP)
510 logf(LOG_LOG, "Final timeout - closing connection.");
512 destroy_association(assoc);
517 logf(LOG_LOG, "Session idle too long. Sending close.");
518 do_close(assoc, Z_Close_lackOfActivity, 0);
522 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
524 if (event & EVENT_INPUT)
526 logf(LOG_DEBUG, "ir_session (input)");
527 assert(assoc && conn);
528 /* We aren't speaking to this fellow */
529 if (assoc->state == ASSOC_DEAD)
531 logf(LOG_LOG, "Closed connection after reject");
533 destroy_association(assoc);
537 if ((res = cs_get(conn, &assoc->input_buffer,
538 &assoc->input_buffer_len)) <= 0)
540 logf(LOG_LOG, "Connection closed by client");
542 destroy_association(assoc);
546 else if (res == 1) /* incomplete read - wait for more */
548 if (cs_more(conn)) /* more stuff - call us again later, please */
549 iochan_setevent(h, EVENT_INPUT);
551 /* we got a complete PDU. Let's decode it */
552 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
553 req = request_get(&assoc->incoming); /* get a new request structure */
554 odr_reset(assoc->decode);
555 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
556 if (!z_APDU(assoc->decode, &req->request, 0, 0))
558 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
559 odr_errmsg(odr_geterror(assoc->decode)),
560 odr_offset(assoc->decode));
561 logf(LOG_LOG, "PDU dump:");
562 odr_dumpBER(log_file(), assoc->input_buffer, res);
563 do_close(assoc, Z_Close_protocolError, "Malformed package");
566 req->request_mem = odr_extract_mem(assoc->decode);
567 if (assoc->print && !z_APDU(assoc->print, &req->request, 0, 0))
569 logf(LOG_WARN, "ODR print error: %s",
570 odr_errmsg(odr_geterror(assoc->print)));
571 odr_reset(assoc->print);
573 request_enq(&assoc->incoming, req);
576 /* can we do something yet? */
577 req = request_head(&assoc->incoming);
578 if (req->state == REQUEST_IDLE)
580 request_deq(&assoc->incoming);
581 if (process_request(assoc, req) < 0)
582 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
586 if (event & EVENT_OUTPUT)
588 request *req = request_head(&assoc->outgoing);
590 logf(LOG_DEBUG, "ir_session (output)");
591 req->state = REQUEST_PENDING;
592 switch (res = cs_put(conn, req->response, req->len_response))
595 logf(LOG_LOG, "Connection closed by client");
597 destroy_association(assoc);
600 case 0: /* all sent - release the request structure */
601 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
602 nmem_destroy(req->request_mem);
603 request_deq(&assoc->outgoing);
604 request_release(req);
605 if (!request_head(&assoc->outgoing))
606 iochan_clearflag(h, EVENT_OUTPUT);
608 /* value of 1 -- partial send -- is simply ignored */
611 if (event & EVENT_EXCEPT)
613 logf(LOG_DEBUG, "ir_session (exception)");
615 destroy_association(assoc);
621 * Initiate request processing.
623 static int process_request(association *assoc, request *req)
629 assert(req && req->state == REQUEST_IDLE);
630 switch (req->request->which)
632 case Z_APDU_initRequest:
633 res = process_initRequest(assoc, req); break;
634 case Z_APDU_searchRequest:
635 res = process_searchRequest(assoc, req, &fd); break;
636 case Z_APDU_presentRequest:
637 res = process_presentRequest(assoc, req, &fd); break;
638 case Z_APDU_scanRequest:
639 res = process_scanRequest(assoc, req, &fd); break;
640 case Z_APDU_extendedServicesRequest:
641 if (assoc->bend_esrequest)
642 res = process_ESRequest(assoc, req, &fd);
645 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
649 case Z_APDU_sortRequest:
650 if (assoc->bend_sort)
651 res = process_sortRequest(assoc, req, &fd);
654 logf(LOG_WARN, "Cannot handle SORT APDU");
659 process_close(assoc, req); return 0;
660 case Z_APDU_deleteResultSetRequest:
661 if (assoc->bend_delete)
662 res = process_deleteRequest(assoc, req, &fd);
665 logf (LOG_WARN, "Cannot handle Delete APDU");
670 logf(LOG_WARN, "Bad APDU received");
675 logf(LOG_DEBUG, " result immediately available");
676 retval = process_response(assoc, req, res);
680 logf(LOG_DEBUG, " result unavailble");
683 else /* no result yet - one will be provided later */
687 /* Set up an I/O handler for the fd supplied by the backend */
689 logf(LOG_DEBUG, " establishing handler for result");
690 req->state = REQUEST_PENDING;
691 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
693 iochan_setdata(chan, assoc);
700 * Handle message from the backend.
702 void backend_response(IOCHAN i, int event)
704 association *assoc = (association *)iochan_getdata(i);
705 request *req = request_head(&assoc->incoming);
709 logf(LOG_DEBUG, "backend_response");
710 assert(assoc && req && req->state != REQUEST_IDLE);
711 /* determine what it is we're waiting for */
712 switch (req->request->which)
714 case Z_APDU_searchRequest:
715 res = response_searchRequest(assoc, req, 0, &fd); break;
717 case Z_APDU_presentRequest:
718 res = response_presentRequest(assoc, req, 0, &fd); break;
719 case Z_APDU_scanRequest:
720 res = response_scanRequest(assoc, req, 0, &fd); break;
723 logf(LOG_WARN, "Serious programmer's lapse or bug");
726 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
728 logf(LOG_LOG, "Fatal error when talking to backend");
729 do_close(assoc, Z_Close_systemProblem, 0);
733 else if (!res) /* no result yet - try again later */
735 logf(LOG_DEBUG, " no result yet");
736 iochan_setfd(i, fd); /* in case fd has changed */
741 * Encode response, and transfer the request structure to the outgoing queue.
743 static int process_response(association *assoc, request *req, Z_APDU *res)
745 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
746 if (!z_APDU(assoc->encode, &res, 0, 0))
748 logf(LOG_WARN, "ODR error when encoding response: %s",
749 odr_errmsg(odr_geterror(assoc->decode)));
750 odr_reset(assoc->encode);
753 req->response = odr_getbuf(assoc->encode, &req->len_response,
754 &req->size_response);
755 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
756 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
758 logf(LOG_WARN, "ODR print error: %s",
759 odr_errmsg(odr_geterror(assoc->print)));
760 odr_reset(assoc->print);
762 odr_reset(assoc->encode);
763 req->state = REQUEST_IDLE;
764 request_enq(&assoc->outgoing, req);
765 /* turn the work over to the ir_session handler */
766 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
767 /* Is there more work to be done? give that to the input handler too */
769 if (request_head(&assoc->incoming))
771 logf (LOG_DEBUG, "more work to be done");
772 iochan_setevent(assoc->client_chan, EVENT_WORK);
779 * Handle init request.
780 * At the moment, we don't check the options
781 * anywhere else in the code - we just try not to do anything that would
782 * break a naive client. We'll toss 'em into the association block when
783 * we need them there.
785 static Z_APDU *process_initRequest(association *assoc, request *reqb)
787 Z_InitRequest *req = reqb->request->u.initRequest;
788 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
789 Z_InitResponse *resp = apdu->u.initResponse;
790 bend_initrequest binitreq;
791 bend_initresult *binitres;
794 logf(LOG_LOG, "Got initRequest");
795 if (req->implementationId)
796 logf(LOG_LOG, "Id: %s", req->implementationId);
797 if (req->implementationName)
798 logf(LOG_LOG, "Name: %s", req->implementationName);
799 if (req->implementationVersion)
800 logf(LOG_LOG, "Version: %s", req->implementationVersion);
802 binitreq.stream = assoc->encode;
803 binitreq.configname = "default-config";
804 binitreq.auth = req->idAuthentication;
805 binitreq.referenceId = req->referenceId;
806 binitreq.implementation_version = 0;
807 binitreq.implementation_name = 0;
808 binitreq.bend_sort = NULL;
809 binitreq.bend_search = NULL;
810 binitreq.bend_present = NULL;
811 binitreq.bend_esrequest = NULL;
812 binitreq.bend_delete = NULL;
813 if (!(binitres = bend_init(&binitreq)))
815 logf(LOG_WARN, "Bad response from backend.");
819 assoc->backend = binitres->handle;
820 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
821 logf (LOG_DEBUG, "Sort handler installed");
822 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
823 logf (LOG_DEBUG, "Search handler installed");
824 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
825 logf (LOG_DEBUG, "Present handler installed");
826 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
827 logf (LOG_DEBUG, "ESRequest handler installed");
828 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
829 logf (LOG_DEBUG, "Delete handler installed");
831 resp->referenceId = req->referenceId;
833 /* let's tell the client what we can do */
834 if (ODR_MASK_GET(req->options, Z_Options_search))
836 ODR_MASK_SET(resp->options, Z_Options_search);
837 strcat(options, "srch");
839 if (ODR_MASK_GET(req->options, Z_Options_present))
841 ODR_MASK_SET(resp->options, Z_Options_present);
842 strcat(options, " prst");
844 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
846 ODR_MASK_SET(resp->options, Z_Options_delSet);
847 strcat(options, " del");
849 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
850 binitreq.bend_esrequest)
852 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
853 strcat (options, " extendedServices");
855 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
857 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
858 strcat(options, " namedresults");
860 if (ODR_MASK_GET(req->options, Z_Options_scan))
862 ODR_MASK_SET(resp->options, Z_Options_scan);
863 strcat(options, " scan");
865 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
867 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
868 strcat(options, " concurop");
870 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
872 ODR_MASK_SET(resp->options, Z_Options_sort);
873 strcat(options, " sort");
875 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
877 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
878 assoc->version = 2; /* 1 & 2 are equivalent */
880 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
882 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
885 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
887 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
890 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
891 assoc->maximumRecordSize = *req->maximumRecordSize;
892 if (assoc->maximumRecordSize > control_block->maxrecordsize)
893 assoc->maximumRecordSize = control_block->maxrecordsize;
894 assoc->preferredMessageSize = *req->preferredMessageSize;
895 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
896 assoc->preferredMessageSize = assoc->maximumRecordSize;
897 resp->preferredMessageSize = &assoc->preferredMessageSize;
898 resp->maximumRecordSize = &assoc->maximumRecordSize;
900 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
902 if (binitreq.implementation_name)
905 odr_malloc (assoc->encode,
906 strlen(binitreq.implementation_name) + 3 +
907 strlen(resp->implementationName));
908 sprintf (nv, "%s %s",
909 resp->implementationName, binitreq.implementation_name);
910 resp->implementationName = nv;
912 if (binitreq.implementation_version)
915 odr_malloc (assoc->encode,
916 strlen(binitreq.implementation_version) + 3 +
917 strlen(resp->implementationVersion));
918 sprintf (nv, "%s %s",
919 resp->implementationVersion, binitreq.implementation_version);
920 resp->implementationVersion = nv;
923 if (binitres->errcode)
925 logf(LOG_LOG, "Connection rejected by backend.");
927 assoc->state = ASSOC_DEAD;
930 assoc->state = ASSOC_UP;
935 * These functions should be merged.
938 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
941 dr->which = Z_DefaultDiagFormat_v2Addinfo;
942 dr->u.v2Addinfo = addinfo ? addinfo : "";
944 dr->which = Z_DiagForm_v2AddInfo;
945 dr->addinfo = addinfo ? addinfo : "";
950 * nonsurrogate diagnostic record.
952 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
955 Z_Records *rec = (Z_Records *)
956 odr_malloc (assoc->encode, sizeof(*rec));
959 odr_malloc (assoc->encode, sizeof(*err));
960 Z_DiagRec *drec = (Z_DiagRec *)
961 odr_malloc (assoc->encode, sizeof(*drec));
962 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
963 odr_malloc (assoc->encode, sizeof(*dr));
965 bib1.proto = assoc->proto;
966 bib1.oclass = CLASS_DIAGSET;
967 bib1.value = VAL_BIB1;
969 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
972 rec->which = Z_Records_NSD;
974 rec->u.nonSurrogateDiagnostic = dr;
976 rec->u.nonSurrogateDiagnostic = drec;
977 drec->which = Z_DiagRec_defaultFormat;
978 drec->u.defaultFormat = dr;
980 dr->diagnosticSetId =
981 odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid));
983 set_addinfo (dr, addinfo);
988 * surrogate diagnostic.
990 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
991 int error, char *addinfo)
994 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
995 odr_malloc (assoc->encode, sizeof(*rec));
996 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
998 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
999 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1000 odr_malloc (assoc->encode, sizeof(*dr));
1002 bib1.proto = assoc->proto;
1003 bib1.oclass = CLASS_DIAGSET;
1004 bib1.value = VAL_BIB1;
1006 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
1008 rec->databaseName = dbname;
1009 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
1010 rec->u.surrogateDiagnostic = drec;
1011 drec->which = Z_DiagRec_defaultFormat;
1012 drec->u.defaultFormat = dr;
1013 dr->diagnosticSetId = odr_oiddup (assoc->encode,
1014 oid_ent_to_oid(&bib1, oid));
1015 dr->condition = err;
1016 set_addinfo (dr, addinfo);
1022 * multiple nonsurrogate diagnostics.
1024 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
1027 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
1028 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
1030 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1031 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1032 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
1034 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1035 bib1.proto = assoc->proto;
1036 bib1.oclass = CLASS_DIAGSET;
1037 bib1.value = VAL_BIB1;
1040 recs->num_diagRecs = 1;
1041 recs->diagRecs = recp;
1043 drec->which = Z_DiagRec_defaultFormat;
1044 drec->u.defaultFormat = rec;
1046 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1047 oid_ent_to_oid(&bib1, oid));
1048 rec->condition = err;
1051 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1052 rec->u.v2Addinfo = addinfo ? addinfo : "";
1054 rec->which = Z_DiagForm_v2AddInfo;
1055 rec->addinfo = addinfo ? addinfo : "";
1060 static Z_Records *pack_records(association *a, char *setname, int start,
1061 int *num, Z_RecordComposition *comp,
1062 int *next, int *pres, oid_value format,
1063 Z_ReferenceId *referenceId)
1065 int recno, total_length = 0, toget = *num, dumped_records = 0;
1066 Z_Records *records =
1067 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1068 Z_NamePlusRecordList *reclist =
1069 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1070 Z_NamePlusRecord **list =
1071 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1073 records->which = Z_Records_DBOSD;
1074 records->u.databaseOrSurDiagnostics = reclist;
1075 reclist->num_records = 0;
1076 reclist->records = list;
1077 *pres = Z_PRES_SUCCESS;
1081 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1082 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1083 a->maximumRecordSize);
1084 for (recno = start; reclist->num_records < toget; recno++)
1086 bend_fetchrequest freq;
1087 bend_fetchresult *fres;
1088 Z_NamePlusRecord *thisrec;
1089 int this_length = 0;
1091 * we get the number of bytes allocated on the stream before any
1092 * allocation done by the backend - this should give us a reasonable
1093 * idea of the total size of the data so far.
1095 total_length = odr_total(a->encode) - dumped_records;
1096 freq.setname = setname;
1097 freq.number = recno;
1099 freq.format = format;
1100 freq.stream = a->encode;
1101 freq.surrogate_flag = 0;
1102 freq.referenceId = referenceId;
1103 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1105 *pres = Z_PRES_FAILURE;
1106 return diagrec(a, 2, "Backend interface problem");
1108 /* backend should be able to signal whether error is system-wide
1109 or only pertaining to current record */
1112 if (!freq.surrogate_flag)
1114 *pres = Z_PRES_FAILURE;
1115 return diagrec(a, fres->errcode, fres->errstring);
1117 reclist->records[reclist->num_records] =
1118 surrogatediagrec(a, fres->basename, fres->errcode,
1120 reclist->num_records++;
1121 *next = fres->last_in_set ? 0 : recno + 1;
1125 this_length = fres->len;
1127 this_length = odr_total(a->encode) - total_length;
1128 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1129 this_length, total_length);
1130 if (this_length + total_length > a->preferredMessageSize)
1132 /* record is small enough, really */
1133 if (this_length <= a->preferredMessageSize)
1135 logf(LOG_DEBUG, " Dropped last normal-sized record");
1136 *pres = Z_PRES_PARTIAL_2;
1139 /* record can only be fetched by itself */
1140 if (this_length < a->maximumRecordSize)
1142 logf(LOG_DEBUG, " Record > prefmsgsz");
1145 logf(LOG_DEBUG, " Dropped it");
1146 reclist->records[reclist->num_records] =
1147 surrogatediagrec(a, fres->basename, 16, 0);
1148 reclist->num_records++;
1149 *next = fres->last_in_set ? 0 : recno + 1;
1150 dumped_records += this_length;
1154 else /* too big entirely */
1156 logf(LOG_DEBUG, "Record > maxrcdsz");
1157 reclist->records[reclist->num_records] =
1158 surrogatediagrec(a, fres->basename, 17, 0);
1159 reclist->num_records++;
1160 *next = fres->last_in_set ? 0 : recno + 1;
1161 dumped_records += this_length;
1166 if (!(thisrec = (Z_NamePlusRecord *)
1167 odr_malloc(a->encode, sizeof(*thisrec))))
1169 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1170 strlen(fres->basename) + 1)))
1172 strcpy(thisrec->databaseName, fres->basename);
1173 thisrec->which = Z_NamePlusRecord_databaseRecord;
1174 thisrec->u.databaseRecord = z_ext_record(a->encode, fres->format,
1175 fres->record, fres->len);
1176 if (!thisrec->u.databaseRecord)
1178 reclist->records[reclist->num_records] = thisrec;
1179 reclist->num_records++;
1180 *next = fres->last_in_set ? 0 : recno + 1;
1182 *num = reclist->num_records;
1186 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1189 Z_SearchRequest *req = reqb->request->u.searchRequest;
1190 bend_search_rr *bsrr =
1191 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1193 logf(LOG_LOG, "Got SearchRequest.");
1195 bsrr->request = reqb;
1196 bsrr->association = assoc;
1197 bsrr->referenceId = req->referenceId;
1198 save_referenceId (reqb, bsrr->referenceId);
1200 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1201 if (req->databaseNames)
1204 for (i = 0; i < req->num_databaseNames; i++)
1205 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1207 switch (req->query->which)
1209 case Z_Query_type_1: case Z_Query_type_101:
1210 log_rpn_query (req->query->u.type_1);
1212 if (assoc->bend_search)
1214 bsrr->setname = req->resultSetName;
1215 bsrr->replace_set = *req->replaceIndicator;
1216 bsrr->num_bases = req->num_databaseNames;
1217 bsrr->basenames = req->databaseNames;
1218 bsrr->query = req->query;
1219 bsrr->stream = assoc->encode;
1220 bsrr->decode = assoc->decode;
1223 bsrr->errstring = NULL;
1224 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1225 (assoc->backend, bsrr);
1231 bend_searchrequest bsrq;
1232 bend_searchresult *bsrt;
1234 bsrq.setname = req->resultSetName;
1235 bsrq.replace_set = *req->replaceIndicator;
1236 bsrq.num_bases = req->num_databaseNames;
1237 bsrq.basenames = req->databaseNames;
1238 bsrq.query = req->query;
1239 bsrq.referenceId = req->referenceId;
1240 bsrq.stream = assoc->encode;
1241 bsrq.decode = assoc->decode;
1242 if (!(bsrt = bend_search (assoc->backend, &bsrq, fd)))
1244 bsrr->hits = bsrt->hits;
1245 bsrr->errcode = bsrt->errcode;
1246 bsrr->errstring = bsrt->errstring;
1248 return response_searchRequest(assoc, reqb, bsrr, fd);
1251 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1254 * Prepare a searchresponse based on the backend results. We probably want
1255 * to look at making the fetching of records nonblocking as well, but
1256 * so far, we'll keep things simple.
1257 * If bsrt is null, that means we're called in response to a communications
1258 * event, and we'll have to get the response for ourselves.
1260 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1261 bend_search_rr *bsrt, int *fd)
1263 Z_SearchRequest *req = reqb->request->u.searchRequest;
1264 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1265 Z_SearchResponse *resp = (Z_SearchResponse *)
1266 odr_malloc (assoc->encode, sizeof(*resp));
1267 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1268 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1269 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1270 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1277 apdu->which = Z_APDU_searchResponse;
1278 apdu->u.searchResponse = resp;
1279 resp->referenceId = req->referenceId;
1280 resp->additionalSearchInfo = 0;
1281 resp->otherInfo = 0;
1283 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1285 logf(LOG_FATAL, "Bad result from backend");
1288 else if (bsrt->errcode)
1290 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1291 resp->resultCount = nulint;
1292 resp->numberOfRecordsReturned = nulint;
1293 resp->nextResultSetPosition = nulint;
1294 resp->searchStatus = nulint;
1295 resp->resultSetStatus = none;
1296 resp->presentStatus = 0;
1300 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1301 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1302 Z_RecordComposition comp, *compp = 0;
1307 resp->resultCount = &bsrt->hits;
1309 comp.which = Z_RecordComp_simple;
1310 /* how many records does the user agent want, then? */
1311 if (bsrt->hits <= *req->smallSetUpperBound)
1313 *toget = bsrt->hits;
1314 if ((comp.u.simple = req->smallSetElementSetNames))
1317 else if (bsrt->hits < *req->largeSetLowerBound)
1319 *toget = *req->mediumSetPresentNumber;
1320 if (*toget > bsrt->hits)
1321 *toget = bsrt->hits;
1322 if ((comp.u.simple = req->mediumSetElementSetNames))
1328 if (*toget && !resp->records)
1333 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1334 prefformat->oclass != CLASS_RECSYN)
1337 form = prefformat->value;
1338 resp->records = pack_records(assoc, req->resultSetName, 1,
1339 toget, compp, next, presst, form, req->referenceId);
1342 resp->numberOfRecordsReturned = toget;
1343 resp->nextResultSetPosition = next;
1344 resp->searchStatus = sr;
1345 resp->resultSetStatus = 0;
1346 resp->presentStatus = presst;
1350 if (*resp->resultCount)
1352 resp->numberOfRecordsReturned = nulint;
1353 resp->nextResultSetPosition = next;
1354 resp->searchStatus = sr;
1355 resp->resultSetStatus = 0;
1356 resp->presentStatus = 0;
1363 * Maybe we got a little over-friendly when we designed bend_fetch to
1364 * get only one record at a time. Some backends can optimise multiple-record
1365 * fetches, and at any rate, there is some overhead involved in
1366 * all that selecting and hopping around. Problem is, of course, that the
1367 * frontend can't know ahead of time how many records it'll need to
1368 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1369 * is downright lousy as a bulk data transfer protocol.
1371 * To start with, we'll do the fetching of records from the backend
1372 * in one operation: To save some trips in and out of the event-handler,
1373 * and to simplify the interface to pack_records. At any rate, asynch
1374 * operation is more fun in operations that have an unpredictable execution
1375 * speed - which is normally more true for search than for present.
1377 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1380 Z_PresentRequest *req = reqb->request->u.presentRequest;
1384 Z_PresentResponse *resp;
1389 logf(LOG_LOG, "Got PresentRequest.");
1391 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1392 prefformat->oclass != CLASS_RECSYN)
1395 form = prefformat->value;
1396 if (assoc->bend_present)
1398 bend_present_rr *bprr = (bend_present_rr *)
1399 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1400 bprr->setname = req->resultSetId;
1401 bprr->start = *req->resultSetStartPoint;
1402 bprr->number = *req->numberOfRecordsRequested;
1403 bprr->format = form;
1404 bprr->comp = req->recordComposition;
1405 bprr->referenceId = req->referenceId;
1406 bprr->stream = assoc->encode;
1407 bprr->request = reqb;
1408 bprr->association = assoc;
1410 bprr->errstring = NULL;
1411 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(
1412 assoc->backend, bprr);
1417 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1418 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1419 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1420 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1421 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1424 *num = *req->numberOfRecordsRequested;
1426 apdu->which = Z_APDU_presentResponse;
1427 apdu->u.presentResponse = resp;
1428 resp->referenceId = req->referenceId;
1429 resp->otherInfo = 0;
1432 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1433 num, req->recordComposition, next, presst, form,
1437 resp->numberOfRecordsReturned = num;
1438 resp->presentStatus = presst;
1439 resp->nextResultSetPosition = next;
1445 * Scan was implemented rather in a hurry, and with support for only the basic
1446 * elements of the service in the backend API. Suggestions are welcome.
1448 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1450 Z_ScanRequest *req = reqb->request->u.scanRequest;
1451 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1452 Z_ScanResponse *res = (Z_ScanResponse *)
1453 odr_malloc (assoc->encode, sizeof(*res));
1454 int *scanStatus = (int *)
1455 odr_malloc (assoc->encode, sizeof(*scanStatus));
1456 int *numberOfEntriesReturned = (int *)
1457 odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1458 Z_ListEntries *ents = (Z_ListEntries *)
1459 odr_malloc (assoc->encode, sizeof(*ents));
1460 Z_DiagRecs *diagrecs_p = NULL;
1462 bend_scanrequest srq;
1463 bend_scanresult *srs;
1466 logf(LOG_LOG, "Got ScanRequest");
1467 *scanStatus = Z_Scan_failure;
1468 *numberOfEntriesReturned = 0;
1470 apdu->which = Z_APDU_scanResponse;
1471 apdu->u.scanResponse = res;
1472 res->referenceId = req->referenceId;
1474 res->scanStatus = scanStatus;
1475 res->numberOfEntriesReturned = numberOfEntriesReturned;
1476 res->positionOfTerm = 0;
1477 res->entries = ents;
1478 ents->num_entries = 0;
1479 ents->entries = NULL;
1480 ents->num_nonsurrogateDiagnostics = 0;
1481 ents->nonsurrogateDiagnostics = NULL;
1482 res->attributeSet = 0;
1485 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1486 attent->oclass != CLASS_ATTSET
1487 || attent->value != VAL_BIB1))
1488 diagrecs_p = diagrecs(assoc, 121, 0);
1489 else if (req->stepSize && *req->stepSize > 0)
1490 diagrecs_p = diagrecs(assoc, 205, 0);
1493 if (req->databaseNames)
1496 for (i = 0; i < req->num_databaseNames; i++)
1497 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1499 srq.num_bases = req->num_databaseNames;
1500 srq.basenames = req->databaseNames;
1501 srq.num_entries = *req->numberOfTermsRequested;
1502 srq.term = req->termListAndStartPoint;
1503 srq.referenceId = req->referenceId;
1504 srq.stream = assoc->encode;
1505 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1506 attset->oclass != CLASS_RECSYN)
1507 srq.attributeset = VAL_NONE;
1509 srq.attributeset = attset->value;
1510 log_scan_term (req->termListAndStartPoint, attset->value);
1511 srq.term_position = req->preferredPositionInResponse ?
1512 *req->preferredPositionInResponse : 1;
1513 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1514 diagrecs_p = diagrecs(assoc, 2, 0);
1515 else if (srs->errcode)
1516 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1520 Z_Entry **tab = (Z_Entry **)
1521 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1523 if (srs->status == BEND_SCAN_PARTIAL)
1524 *scanStatus = Z_Scan_partial_5;
1526 *scanStatus = Z_Scan_success;
1527 ents->entries = tab;
1528 ents->num_entries = srs->num_entries;
1529 res->numberOfEntriesReturned = &ents->num_entries;
1530 res->positionOfTerm = &srs->term_position;
1531 for (i = 0; i < srs->num_entries; i++)
1537 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1538 if (srs->entries[i].occurrences >= 0)
1540 e->which = Z_Entry_termInfo;
1541 e->u.termInfo = t = (Z_TermInfo *)
1542 odr_malloc(assoc->encode, sizeof(*t));
1543 t->suggestedAttributes = 0;
1545 t->alternativeTerm = 0;
1546 t->byAttributes = 0;
1547 t->otherTermInfo = 0;
1548 t->globalOccurrences = &srs->entries[i].occurrences;
1549 t->term = (Z_Term *)
1550 odr_malloc(assoc->encode, sizeof(*t->term));
1551 t->term->which = Z_Term_general;
1552 t->term->u.general = o =
1553 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1554 o->buf = (unsigned char *)
1555 odr_malloc(assoc->encode, o->len = o->size =
1556 strlen(srs->entries[i].term));
1557 memcpy(o->buf, srs->entries[i].term, o->len);
1558 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1559 srs->entries[i].term, srs->entries[i].occurrences);
1563 Z_DiagRecs *drecs = diagrecs (assoc,
1564 srs->entries[i].errcode,
1565 srs->entries[i].errstring);
1566 assert (drecs->num_diagRecs == 1);
1567 e->which = Z_Entry_surrogateDiagnostic;
1568 assert (drecs->diagRecs[0]);
1569 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1576 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1577 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1582 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1585 Z_SortRequest *req = reqb->request->u.sortRequest;
1586 Z_SortResponse *res = (Z_SortResponse *)
1587 odr_malloc (assoc->encode, sizeof(*res));
1588 bend_sort_rr *bsrr = (bend_sort_rr *)
1589 odr_malloc (assoc->encode, sizeof(*bsrr));
1591 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1593 logf(LOG_LOG, "Got SortRequest.");
1596 bsrr->num_input_setnames = req->num_inputResultSetNames;
1597 bsrr->input_setnames = req->inputResultSetNames;
1599 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1600 bsrr->input_setnames = req->inputResultSetNames->strings;
1602 bsrr->referenceId = req->referenceId;
1603 bsrr->output_setname = req->sortedResultSetName;
1604 bsrr->sort_sequence = req->sortSequence;
1605 bsrr->stream = assoc->encode;
1607 bsrr->sort_status = Z_SortStatus_failure;
1609 bsrr->errstring = 0;
1611 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend,
1614 res->referenceId = bsrr->referenceId;
1615 res->sortStatus = (int *)
1616 odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1617 *res->sortStatus = bsrr->sort_status;
1618 res->resultSetStatus = 0;
1621 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1623 res->diagnostics = dr->diagRecs;
1624 res->num_diagnostics = dr->num_diagRecs;
1626 res->diagnostics = dr;
1632 res->num_diagnostics = 0;
1634 res->diagnostics = 0;
1638 apdu->which = Z_APDU_sortResponse;
1639 apdu->u.sortResponse = res;
1643 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1646 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1647 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1648 odr_malloc (assoc->encode, sizeof(*res));
1649 bend_delete_rr *bdrr = (bend_delete_rr *)
1650 odr_malloc (assoc->encode, sizeof(*bdrr));
1651 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1653 logf(LOG_LOG, "Got DeleteRequest.");
1655 bdrr->num_setnames = req->num_resultSetList;
1656 bdrr->setnames = req->resultSetList;
1657 bdrr->stream = assoc->encode;
1658 bdrr->function = *req->deleteFunction;
1659 bdrr->referenceId = req->referenceId;
1661 ((int (*)(void *, bend_delete_rr *))
1662 (*assoc->bend_delete))(assoc->backend, bdrr);
1664 res->referenceId = req->referenceId;
1666 res->deleteOperationStatus = (int *)
1667 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1668 *res->deleteOperationStatus = bdrr->delete_status;
1670 res->deleteListStatuses = 0;
1671 res->numberNotDeleted = 0;
1672 res->bulkStatuses = 0;
1673 res->deleteMessage = 0;
1676 apdu->which = Z_APDU_deleteResultSetResponse;
1677 apdu->u.deleteResultSetResponse = res;
1681 static void process_close(association *assoc, request *reqb)
1683 Z_Close *req = reqb->request->u.close;
1684 static char *reasons[] =
1691 "securityViolation",
1698 logf(LOG_LOG, "Got Close, reason %s, message %s",
1699 reasons[*req->closeReason], req->diagnosticInformation ?
1700 req->diagnosticInformation : "NULL");
1701 if (assoc->version < 3) /* to make do_force respond with close */
1703 do_close_req(assoc, Z_Close_finished,
1704 "Association terminated by client", reqb);
1707 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1711 reqb->len_refid = refid->len;
1712 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1713 memcpy (reqb->refid, refid->buf, refid->len);
1717 reqb->len_refid = 0;
1722 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1724 process_response (a, req, res);
1727 bend_request bend_request_mk (bend_association a)
1729 request *nreq = request_get (&a->outgoing);
1730 nreq->request_mem = nmem_create ();
1734 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1739 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1740 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1741 id->len = id->size = req->len_refid;
1742 memcpy (id->buf, req->refid, req->len_refid);
1746 void bend_request_destroy (bend_request *req)
1748 nmem_destroy((*req)->request_mem);
1749 request_release(*req);
1753 int bend_backend_respond (bend_association a, bend_request req)
1755 return process_request (a, req);
1758 void bend_request_setdata(bend_request r, void *p)
1763 void *bend_request_getdata(bend_request r)
1765 return r->clientData;
1768 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1770 bend_esrequest_rr esrequest;
1772 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1773 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1775 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1777 logf(LOG_DEBUG,"inside Process esRequest");
1779 esrequest.esr = reqb->request->u.extendedServicesRequest;
1780 esrequest.stream = assoc->encode;
1781 esrequest.errcode = 0;
1782 esrequest.errstring = NULL;
1783 esrequest.request = reqb;
1784 esrequest.association = assoc;
1785 esrequest.referenceId = req->referenceId;
1787 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))
1788 (assoc->backend, &esrequest);
1790 /* If the response is being delayed, return NULL */
1791 if (esrequest.request == NULL)
1794 resp->referenceId = req->referenceId;
1796 if (esrequest.errcode == -1)
1798 /* Backend service indicates request will be processed */
1799 logf(LOG_DEBUG,"Request could be processed...Accepted !");
1800 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
1802 else if (esrequest.errcode == 0)
1804 /* Backend service indicates request will be processed */
1805 logf(LOG_DEBUG,"Request could be processed...Done !");
1806 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1810 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
1811 esrequest.errstring);
1813 /* Backend indicates error, request will not be processed */
1814 logf(LOG_DEBUG,"Request could not be processed...failure !");
1815 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1816 resp->num_diagnostics = diagRecs->num_diagRecs;
1817 resp->diagnostics = diagRecs->diagRecs;
1819 /* Do something with the members of bend_extendedservice */
1821 logf(LOG_DEBUG,"Send the result apdu");