2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.90 1999-05-27 13:02:20 adam
8 * Assigned OID for old DB Update (VAL_DBUPDATE0).
10 * Revision 1.89 1999/05/26 15:24:26 adam
11 * Fixed minor bugs regarding DB Update (introduced by previous commit).
13 * Revision 1.88 1999/04/20 09:56:48 adam
14 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
15 * Modified all encoders/decoders to reflect this change.
17 * Revision 1.87 1999/03/31 11:18:25 adam
18 * Implemented odr_strdup. Added Reference ID to backend server API.
20 * Revision 1.86 1999/02/02 13:57:38 adam
21 * Uses preprocessor define WIN32 instead of WINDOWS to build code
22 * for Microsoft WIN32.
24 * Revision 1.85 1998/11/17 09:52:59 adam
25 * Fixed minor bug (introduced by previous commit).
27 * Revision 1.84 1998/11/16 16:02:32 adam
28 * Added loggin utilies, log_rpn_query and log_scan_term. These used
29 * to be part of Zebra.
31 * Revision 1.83 1998/11/03 10:09:36 adam
32 * Fixed bug regarding YC.
34 * Revision 1.82 1998/10/20 14:00:30 quinn
37 * Revision 1.81 1998/10/13 16:12:24 adam
38 * Added support for Surrogate Diagnostics for Scan Term entries.
40 * Revision 1.80 1998/09/02 12:41:53 adam
41 * Added decode stream in bend search structures.
43 * Revision 1.79 1998/08/19 16:10:08 adam
44 * Changed som member names of DeleteResultSetRequest/Response.
46 * Revision 1.78 1998/08/03 10:23:55 adam
47 * Fixed bug regarding Options for Sort.
49 * Revision 1.77 1998/07/20 12:38:42 adam
50 * Implemented delete result set service to server API.
52 * Revision 1.76 1998/05/27 16:57:07 adam
53 * Support for surrogate diagnostic records added for bend_fetch.
55 * Revision 1.75 1998/05/18 10:13:07 adam
56 * Fixed call to es_request handler - extra argument was passed.
58 * Revision 1.74 1998/03/31 15:13:20 adam
59 * Development towards compiled ASN.1.
61 * Revision 1.73 1998/03/31 11:07:45 adam
62 * Furhter work on UNIverse resource report.
63 * Added Extended Services handling in frontend server.
65 * Revision 1.72 1998/02/11 11:53:35 adam
66 * Changed code so that it compiles as C++.
68 * Revision 1.71 1998/02/10 11:03:57 adam
69 * Added support for extended handlers in backend server interface.
71 * Revision 1.70 1998/01/29 13:15:35 adam
72 * Implemented sort for the backend interface.
74 * Revision 1.69 1997/09/30 11:48:12 adam
75 * Fixed bug introduced by previous commit.
77 * Revision 1.68 1997/09/29 13:18:59 adam
78 * Added function, oid_ent_to_oid, to replace the function
79 * oid_getoidbyent, which is not thread safe.
81 * Revision 1.67 1997/09/17 12:10:40 adam
84 * Revision 1.66 1997/09/05 15:26:44 adam
85 * Added ODR encode in search and scen bend request structures.
86 * Fixed a few enums that caused trouble with C++.
88 * Revision 1.65 1997/09/01 08:53:01 adam
89 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
90 * moved a separate directory. MSV5.0 project server.dsp created.
91 * As an option, the server can now operate as an NT service.
93 * Revision 1.64 1997/04/30 08:52:11 quinn
96 * Revision 1.63 1996/10/11 11:57:26 quinn
99 * Revision 1.62 1996/07/06 19:58:35 quinn
100 * System headerfiles gathered in yconfig
102 * Revision 1.61 1996/06/10 08:56:16 quinn
105 * Revision 1.60 1996/05/30 11:03:10 quinn
106 * Fixed NextresultSetPosition bug fixed.
108 * Revision 1.59 1996/05/14 09:26:46 quinn
109 * Added attribute set to scan backend
111 * Revision 1.58 1996/02/20 12:53:04 quinn
114 * Revision 1.57 1996/01/02 08:57:47 quinn
115 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
117 * Revision 1.56 1995/12/14 11:09:57 quinn
120 * Revision 1.55 1995/11/08 17:41:37 quinn
123 * Revision 1.54 1995/11/08 15:11:29 quinn
124 * Log of close transmit.
126 * Revision 1.53 1995/11/01 13:54:58 quinn
129 * Revision 1.52 1995/11/01 12:19:13 quinn
130 * Second attempt to fix same bug.
132 * Revision 1.50 1995/10/25 16:58:32 quinn
135 * Revision 1.49 1995/10/16 13:51:53 quinn
136 * Changes to provide Especs to the backend.
138 * Revision 1.48 1995/10/06 08:51:20 quinn
139 * Added Write-buffer.
141 * Revision 1.47 1995/08/29 14:24:16 quinn
142 * Added second half of close-handshake
144 * Revision 1.46 1995/08/29 11:17:58 quinn
145 * Added code to receive close
147 * Revision 1.45 1995/08/21 09:11:00 quinn
148 * Smallish fixes to suppport new formats.
150 * Revision 1.44 1995/08/17 12:45:25 quinn
151 * Fixed minor problems with GRS-1. Added support in c&s.
153 * Revision 1.43 1995/08/15 12:00:31 quinn
156 * Revision 1.42 1995/08/15 11:16:50 quinn
158 * Revision 1.41 1995/08/02 10:23:06 quinn
161 * Revision 1.40 1995/07/31 14:34:26 quinn
162 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
164 * Revision 1.39 1995/06/27 13:21:00 quinn
167 * Revision 1.38 1995/06/19 12:39:11 quinn
168 * Fixed bug in timeout code. Added BER dumper.
170 * Revision 1.37 1995/06/16 13:16:14 quinn
171 * Fixed Defaultdiagformat.
173 * Revision 1.36 1995/06/16 10:31:36 quinn
174 * Added session timeout.
176 * Revision 1.35 1995/06/15 07:45:14 quinn
179 * Revision 1.34 1995/06/14 15:26:46 quinn
180 * *** empty log message ***
182 * Revision 1.33 1995/06/06 14:57:05 quinn
183 * Better diagnostics.
185 * Revision 1.32 1995/06/06 08:41:44 quinn
186 * Better diagnostics.
188 * Revision 1.31 1995/06/06 08:15:37 quinn
191 * Revision 1.30 1995/06/05 10:53:32 quinn
192 * Added a better SCAN.
194 * Revision 1.29 1995/06/01 11:25:03 quinn
197 * Revision 1.28 1995/06/01 11:21:01 quinn
198 * Attempting to fix a bug in pack-records. replaced break with continue
199 * for large records, according to standard.
201 * Revision 1.27 1995/05/29 08:12:06 quinn
204 * Revision 1.26 1995/05/18 13:02:12 quinn
207 * Revision 1.25 1995/05/17 08:42:26 quinn
208 * Transfer auth info to backend. Allow backend to reject init gracefully.
210 * Revision 1.24 1995/05/16 08:51:04 quinn
211 * License, documentation, and memory fixes
213 * Revision 1.23 1995/05/15 13:25:10 quinn
216 * Revision 1.22 1995/05/15 11:56:39 quinn
217 * Asynchronous facilities. Restructuring of seshigh code.
219 * Revision 1.21 1995/05/02 08:53:19 quinn
220 * Trying in vain to fix comm with ISODE
222 * Revision 1.20 1995/04/20 15:13:00 quinn
225 * Revision 1.19 1995/04/18 08:15:34 quinn
226 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
227 * neater. We'll make the same change for decoding one day.
229 * Revision 1.18 1995/04/17 11:28:25 quinn
232 * Revision 1.17 1995/04/10 10:23:36 quinn
233 * Some work to add scan and other things.
235 * Revision 1.16 1995/03/31 09:18:55 quinn
238 * Revision 1.15 1995/03/30 14:03:23 quinn
239 * Added RFC1006 as separate library
241 * Revision 1.14 1995/03/30 12:18:17 quinn
244 * Revision 1.13 1995/03/30 09:09:24 quinn
245 * Added state-handle and some support for asynchronous activities.
247 * Revision 1.12 1995/03/29 15:40:16 quinn
248 * Ongoing work. Statserv is now dynamic by default
250 * Revision 1.11 1995/03/28 09:16:21 quinn
251 * Added record packing to the search request
253 * Revision 1.10 1995/03/27 08:34:24 quinn
254 * Added dynamic server functionality.
255 * Released bindings to session.c (is now redundant)
257 * Revision 1.9 1995/03/22 15:01:26 quinn
258 * Adjusting record packing.
260 * Revision 1.8 1995/03/22 10:13:21 quinn
261 * Working on record packer
263 * Revision 1.7 1995/03/21 15:53:31 quinn
266 * Revision 1.6 1995/03/21 12:30:09 quinn
267 * Beginning to add support for record packing.
269 * Revision 1.5 1995/03/17 10:44:13 quinn
270 * Added catch of null-string in makediagrec
272 * Revision 1.4 1995/03/17 10:18:08 quinn
273 * Added memory management.
275 * Revision 1.3 1995/03/16 17:42:39 quinn
278 * Revision 1.2 1995/03/16 13:29:01 quinn
279 * Partitioned server.
281 * Revision 1.1 1995/03/15 16:02:10 quinn
282 * Modded session.c to seshigh.c
287 * Frontend server logic.
289 * This code receives incoming APDUs, and handles client requests by means
290 * of the backend API.
292 * Some of the code is getting quite involved, compared to simpler servers -
293 * primarily because it is asynchronous both in the communication with
294 * the user and the backend. We think the complexity will pay off in
295 * the form of greater flexibility when more asynchronous facilities
298 * Memory management has become somewhat involved. In the simple case, where
299 * only one PDU is pending at a time, it will simply reuse the same memory,
300 * once it has found its working size. When we enable multiple concurrent
301 * operations, perhaps even with multiple parallel calls to the backend, it
302 * will maintain a pool of buffers for encoding and decoding, trying to
303 * minimize memory allocation/deallocation during normal operation.
305 * TODOs include (and will be done in order of public interest):
307 * Support for EXPLAIN - provide simple meta-database system.
308 * Support for access control.
309 * Support for resource control.
310 * Support for extended services - primarily Item Order.
311 * Rest of Z39.50-1994
326 #include <comstack.h>
333 #include <statserv.h>
337 static int process_request(association *assoc, request *req);
338 void backend_response(IOCHAN i, int event);
339 static int process_response(association *assoc, request *req, Z_APDU *res);
340 static Z_APDU *process_initRequest(association *assoc, request *reqb);
341 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
343 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
344 bend_search_rr *bsrr, int *fd);
345 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
347 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
348 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
349 static void process_close(association *assoc, request *reqb);
350 void save_referenceId (request *reqb, Z_ReferenceId *refid);
351 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
354 static FILE *apduf = 0; /* for use in static mode */
355 static statserv_options_block *control_block = 0;
357 /* Chas: Added in from DALI */
358 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
359 /* Chas: End of addition from DALI */
362 * Create and initialize a new association-handle.
363 * channel : iochannel for the current line.
364 * link : communications channel.
365 * Returns: 0 or a new association handle.
367 association *create_association(IOCHAN channel, COMSTACK link)
372 control_block = statserv_getcontrol();
373 if (!(anew = (association *)xmalloc(sizeof(*anew))))
375 anew->client_chan = channel;
376 anew->client_link = link;
377 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
378 !(anew->encode = odr_createmem(ODR_ENCODE)))
380 if (*control_block->apdufile)
385 strcpy(filename, control_block->apdufile);
386 if (!(anew->print = odr_createmem(ODR_PRINT)))
388 if (*control_block->apdufile != '-')
390 strcpy(filename, control_block->apdufile);
391 if (!control_block->dynamic)
395 if (!(apduf = fopen(filename, "w")))
397 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
400 setvbuf(apduf, 0, _IONBF, 0);
406 sprintf(filename + strlen(filename), ".%d", getpid());
407 if (!(f = fopen(filename, "w")))
409 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
412 setvbuf(f, 0, _IONBF, 0);
414 odr_setprint(anew->print, f);
419 anew->input_buffer = 0;
420 anew->input_buffer_len = 0;
422 anew->state = ASSOC_NEW;
423 request_initq(&anew->incoming);
424 request_initq(&anew->outgoing);
425 anew->proto = cs_getproto(link);
430 * Free association and release resources.
432 void destroy_association(association *h)
434 odr_destroy(h->decode);
435 odr_destroy(h->encode);
437 odr_destroy(h->print);
439 xfree(h->input_buffer);
441 bend_close(h->backend);
442 while (request_deq(&h->incoming));
443 while (request_deq(&h->outgoing));
444 request_delq(&h->incoming);
445 request_delq(&h->outgoing);
449 static void do_close_req(association *a, int reason, char *message,
453 Z_Close *cls = zget_Close(a->encode);
455 /* Purge request queue */
456 while (request_deq(&a->incoming));
457 while (request_deq(&a->outgoing));
460 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
461 reason, message ? message : "none");
462 apdu.which = Z_APDU_close;
464 *cls->closeReason = reason;
465 cls->diagnosticInformation = message;
466 process_response(a, req, &apdu);
467 iochan_settimeout(a->client_chan, 60);
471 logf(LOG_DEBUG, "v2 client. No Close PDU");
472 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
474 a->state = ASSOC_DEAD;
477 static void do_close(association *a, int reason, char *message)
479 do_close_req (a, reason, message, request_get(&a->outgoing));
483 * This is where PDUs from the client are read and the further
484 * processing is initiated. Flow of control moves down through the
485 * various process_* functions below, until the encoded result comes back up
486 * to the output handler in here.
488 * h : the I/O channel that has an outstanding event.
489 * event : the current outstanding event.
491 void ir_session(IOCHAN h, int event)
494 association *assoc = (association *)iochan_getdata(h);
495 COMSTACK conn = assoc->client_link;
498 assert(h && conn && assoc);
499 if (event == EVENT_TIMEOUT)
501 if (assoc->state != ASSOC_UP)
503 logf(LOG_LOG, "Final timeout - closing connection.");
505 destroy_association(assoc);
510 logf(LOG_LOG, "Session idle too long. Sending close.");
511 do_close(assoc, Z_Close_lackOfActivity, 0);
515 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
517 if (event & EVENT_INPUT)
519 logf(LOG_DEBUG, "ir_session (input)");
520 assert(assoc && conn);
521 /* We aren't speaking to this fellow */
522 if (assoc->state == ASSOC_DEAD)
524 logf(LOG_LOG, "Closed connection after reject");
526 destroy_association(assoc);
530 if ((res = cs_get(conn, &assoc->input_buffer,
531 &assoc->input_buffer_len)) <= 0)
533 logf(LOG_LOG, "Connection closed by client");
535 destroy_association(assoc);
539 else if (res == 1) /* incomplete read - wait for more */
541 if (cs_more(conn)) /* more stuff - call us again later, please */
542 iochan_setevent(h, EVENT_INPUT);
544 /* we got a complete PDU. Let's decode it */
545 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
546 req = request_get(&assoc->incoming); /* get a new request structure */
547 odr_reset(assoc->decode);
548 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
549 if (!z_APDU(assoc->decode, &req->request, 0, 0))
551 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
552 odr_errmsg(odr_geterror(assoc->decode)),
553 odr_offset(assoc->decode));
554 logf(LOG_LOG, "PDU dump:");
555 odr_dumpBER(log_file(), assoc->input_buffer, res);
556 do_close(assoc, Z_Close_protocolError, "Malformed package");
559 req->request_mem = odr_extract_mem(assoc->decode);
560 if (assoc->print && !z_APDU(assoc->print, &req->request, 0, 0))
562 logf(LOG_WARN, "ODR print error: %s",
563 odr_errmsg(odr_geterror(assoc->print)));
564 odr_reset(assoc->print);
566 request_enq(&assoc->incoming, req);
569 /* can we do something yet? */
570 req = request_head(&assoc->incoming);
571 if (req->state == REQUEST_IDLE)
573 request_deq(&assoc->incoming);
574 if (process_request(assoc, req) < 0)
575 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
579 if (event & EVENT_OUTPUT)
581 request *req = request_head(&assoc->outgoing);
583 logf(LOG_DEBUG, "ir_session (output)");
584 req->state = REQUEST_PENDING;
585 switch (res = cs_put(conn, req->response, req->len_response))
588 logf(LOG_LOG, "Connection closed by client");
590 destroy_association(assoc);
593 case 0: /* all sent - release the request structure */
594 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
595 nmem_destroy(req->request_mem);
596 request_deq(&assoc->outgoing);
597 request_release(req);
598 if (!request_head(&assoc->outgoing))
599 iochan_clearflag(h, EVENT_OUTPUT);
601 /* value of 1 -- partial send -- is simply ignored */
604 if (event & EVENT_EXCEPT)
606 logf(LOG_DEBUG, "ir_session (exception)");
608 destroy_association(assoc);
614 * Initiate request processing.
616 static int process_request(association *assoc, request *req)
622 assert(req && req->state == REQUEST_IDLE);
623 switch (req->request->which)
625 case Z_APDU_initRequest:
626 res = process_initRequest(assoc, req); break;
627 case Z_APDU_searchRequest:
628 res = process_searchRequest(assoc, req, &fd); break;
629 case Z_APDU_presentRequest:
630 res = process_presentRequest(assoc, req, &fd); break;
631 case Z_APDU_scanRequest:
632 res = process_scanRequest(assoc, req, &fd); break;
633 case Z_APDU_extendedServicesRequest:
634 if (assoc->bend_esrequest)
635 res = process_ESRequest(assoc, req, &fd);
638 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
642 case Z_APDU_sortRequest:
643 if (assoc->bend_sort)
644 res = process_sortRequest(assoc, req, &fd);
647 logf(LOG_WARN, "Cannot handle SORT APDU");
652 process_close(assoc, req); return 0;
653 case Z_APDU_deleteResultSetRequest:
654 if (assoc->bend_delete)
655 res = process_deleteRequest(assoc, req, &fd);
658 logf (LOG_WARN, "Cannot handle Delete APDU");
663 logf(LOG_WARN, "Bad APDU received");
668 logf(LOG_DEBUG, " result immediately available");
669 retval = process_response(assoc, req, res);
673 logf(LOG_DEBUG, " result unavailble");
676 else /* no result yet - one will be provided later */
680 /* Set up an I/O handler for the fd supplied by the backend */
682 logf(LOG_DEBUG, " establishing handler for result");
683 req->state = REQUEST_PENDING;
684 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
686 iochan_setdata(chan, assoc);
693 * Handle message from the backend.
695 void backend_response(IOCHAN i, int event)
697 association *assoc = (association *)iochan_getdata(i);
698 request *req = request_head(&assoc->incoming);
702 logf(LOG_DEBUG, "backend_response");
703 assert(assoc && req && req->state != REQUEST_IDLE);
704 /* determine what it is we're waiting for */
705 switch (req->request->which)
707 case Z_APDU_searchRequest:
708 res = response_searchRequest(assoc, req, 0, &fd); break;
710 case Z_APDU_presentRequest:
711 res = response_presentRequest(assoc, req, 0, &fd); break;
712 case Z_APDU_scanRequest:
713 res = response_scanRequest(assoc, req, 0, &fd); break;
716 logf(LOG_WARN, "Serious programmer's lapse or bug");
719 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
721 logf(LOG_LOG, "Fatal error when talking to backend");
722 do_close(assoc, Z_Close_systemProblem, 0);
726 else if (!res) /* no result yet - try again later */
728 logf(LOG_DEBUG, " no result yet");
729 iochan_setfd(i, fd); /* in case fd has changed */
734 * Encode response, and transfer the request structure to the outgoing queue.
736 static int process_response(association *assoc, request *req, Z_APDU *res)
738 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
739 if (!z_APDU(assoc->encode, &res, 0, 0))
741 logf(LOG_WARN, "ODR error when encoding response: %s",
742 odr_errmsg(odr_geterror(assoc->decode)));
743 odr_reset(assoc->encode);
746 req->response = odr_getbuf(assoc->encode, &req->len_response,
747 &req->size_response);
748 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
749 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
751 logf(LOG_WARN, "ODR print error: %s",
752 odr_errmsg(odr_geterror(assoc->print)));
753 odr_reset(assoc->print);
755 odr_reset(assoc->encode);
756 req->state = REQUEST_IDLE;
757 request_enq(&assoc->outgoing, req);
758 /* turn the work over to the ir_session handler */
759 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
760 /* Is there more work to be done? give that to the input handler too */
762 if (request_head(&assoc->incoming))
764 logf (LOG_DEBUG, "more work to be done");
765 iochan_setevent(assoc->client_chan, EVENT_WORK);
772 * Handle init request.
773 * At the moment, we don't check the options
774 * anywhere else in the code - we just try not to do anything that would
775 * break a naive client. We'll toss 'em into the association block when
776 * we need them there.
778 static Z_APDU *process_initRequest(association *assoc, request *reqb)
780 Z_InitRequest *req = reqb->request->u.initRequest;
781 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
782 Z_InitResponse *resp = apdu->u.initResponse;
783 bend_initrequest binitreq;
784 bend_initresult *binitres;
787 logf(LOG_LOG, "Got initRequest");
788 if (req->implementationId)
789 logf(LOG_LOG, "Id: %s", req->implementationId);
790 if (req->implementationName)
791 logf(LOG_LOG, "Name: %s", req->implementationName);
792 if (req->implementationVersion)
793 logf(LOG_LOG, "Version: %s", req->implementationVersion);
795 binitreq.stream = assoc->encode;
796 binitreq.configname = "default-config";
797 binitreq.auth = req->idAuthentication;
798 binitreq.referenceId = req->referenceId;
799 binitreq.bend_sort = NULL;
800 binitreq.bend_search = NULL;
801 binitreq.bend_present = NULL;
802 binitreq.bend_esrequest = NULL;
803 binitreq.bend_delete = NULL;
804 if (!(binitres = bend_init(&binitreq)))
806 logf(LOG_WARN, "Bad response from backend.");
810 assoc->backend = binitres->handle;
811 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
812 logf (LOG_DEBUG, "Sort handler installed");
813 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
814 logf (LOG_DEBUG, "Search handler installed");
815 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
816 logf (LOG_DEBUG, "Present handler installed");
817 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
818 logf (LOG_DEBUG, "ESRequest handler installed");
819 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
820 logf (LOG_DEBUG, "Delete handler installed");
822 resp->referenceId = req->referenceId;
824 /* let's tell the client what we can do */
825 if (ODR_MASK_GET(req->options, Z_Options_search))
827 ODR_MASK_SET(resp->options, Z_Options_search);
828 strcat(options, "srch");
830 if (ODR_MASK_GET(req->options, Z_Options_present))
832 ODR_MASK_SET(resp->options, Z_Options_present);
833 strcat(options, " prst");
835 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
837 ODR_MASK_SET(resp->options, Z_Options_delSet);
838 strcat(options, " del");
840 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
841 binitreq.bend_esrequest)
843 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
844 strcat (options, " extendedServices");
846 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
848 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
849 strcat(options, " namedresults");
851 if (ODR_MASK_GET(req->options, Z_Options_scan))
853 ODR_MASK_SET(resp->options, Z_Options_scan);
854 strcat(options, " scan");
856 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
858 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
859 strcat(options, " concurop");
861 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
863 ODR_MASK_SET(resp->options, Z_Options_sort);
864 strcat(options, " sort");
866 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
868 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
869 assoc->version = 2; /* 1 & 2 are equivalent */
871 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
873 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
876 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
878 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
881 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
882 assoc->maximumRecordSize = *req->maximumRecordSize;
883 if (assoc->maximumRecordSize > control_block->maxrecordsize)
884 assoc->maximumRecordSize = control_block->maxrecordsize;
885 assoc->preferredMessageSize = *req->preferredMessageSize;
886 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
887 assoc->preferredMessageSize = assoc->maximumRecordSize;
888 resp->preferredMessageSize = &assoc->preferredMessageSize;
889 resp->maximumRecordSize = &assoc->maximumRecordSize;
890 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
891 if (binitres->errcode)
893 logf(LOG_LOG, "Connection rejected by backend.");
895 assoc->state = ASSOC_DEAD;
898 assoc->state = ASSOC_UP;
903 * These functions should be merged.
906 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
909 dr->which = Z_DefaultDiagFormat_v2Addinfo;
910 dr->u.v2Addinfo = addinfo ? addinfo : "";
912 dr->which = Z_DiagForm_v2AddInfo;
913 dr->addinfo = addinfo ? addinfo : "";
918 * nonsurrogate diagnostic record.
920 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
923 Z_Records *rec = (Z_Records *)
924 odr_malloc (assoc->encode, sizeof(*rec));
927 odr_malloc (assoc->encode, sizeof(*err));
928 Z_DiagRec *drec = (Z_DiagRec *)
929 odr_malloc (assoc->encode, sizeof(*drec));
930 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
931 odr_malloc (assoc->encode, sizeof(*dr));
933 bib1.proto = assoc->proto;
934 bib1.oclass = CLASS_DIAGSET;
935 bib1.value = VAL_BIB1;
937 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
940 rec->which = Z_Records_NSD;
942 rec->u.nonSurrogateDiagnostic = dr;
944 rec->u.nonSurrogateDiagnostic = drec;
945 drec->which = Z_DiagRec_defaultFormat;
946 drec->u.defaultFormat = dr;
948 dr->diagnosticSetId =
949 odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid));
951 set_addinfo (dr, addinfo);
956 * surrogate diagnostic.
958 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
959 int error, char *addinfo)
962 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
963 odr_malloc (assoc->encode, sizeof(*rec));
964 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
966 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
967 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
968 odr_malloc (assoc->encode, sizeof(*dr));
970 bib1.proto = assoc->proto;
971 bib1.oclass = CLASS_DIAGSET;
972 bib1.value = VAL_BIB1;
974 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
976 rec->databaseName = dbname;
977 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
978 rec->u.surrogateDiagnostic = drec;
979 drec->which = Z_DiagRec_defaultFormat;
980 drec->u.defaultFormat = dr;
981 dr->diagnosticSetId = odr_oiddup (assoc->encode,
982 oid_ent_to_oid(&bib1, oid));
984 set_addinfo (dr, addinfo);
990 * multiple nonsurrogate diagnostics.
992 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
995 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
996 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
998 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
999 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1000 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
1002 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1003 bib1.proto = assoc->proto;
1004 bib1.oclass = CLASS_DIAGSET;
1005 bib1.value = VAL_BIB1;
1008 recs->num_diagRecs = 1;
1009 recs->diagRecs = recp;
1011 drec->which = Z_DiagRec_defaultFormat;
1012 drec->u.defaultFormat = rec;
1014 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1015 oid_ent_to_oid(&bib1, oid));
1016 rec->condition = err;
1019 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1020 rec->u.v2Addinfo = addinfo ? addinfo : "";
1022 rec->which = Z_DiagForm_v2AddInfo;
1023 rec->addinfo = addinfo ? addinfo : "";
1028 static Z_Records *pack_records(association *a, char *setname, int start,
1029 int *num, Z_RecordComposition *comp,
1030 int *next, int *pres, oid_value format,
1031 Z_ReferenceId *referenceId)
1033 int recno, total_length = 0, toget = *num, dumped_records = 0;
1034 Z_Records *records =
1035 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1036 Z_NamePlusRecordList *reclist =
1037 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1038 Z_NamePlusRecord **list =
1039 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1041 records->which = Z_Records_DBOSD;
1042 records->u.databaseOrSurDiagnostics = reclist;
1043 reclist->num_records = 0;
1044 reclist->records = list;
1045 *pres = Z_PRES_SUCCESS;
1049 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1050 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1051 a->maximumRecordSize);
1052 for (recno = start; reclist->num_records < toget; recno++)
1054 bend_fetchrequest freq;
1055 bend_fetchresult *fres;
1056 Z_NamePlusRecord *thisrec;
1057 int this_length = 0;
1059 * we get the number of bytes allocated on the stream before any
1060 * allocation done by the backend - this should give us a reasonable
1061 * idea of the total size of the data so far.
1063 total_length = odr_total(a->encode) - dumped_records;
1064 freq.setname = setname;
1065 freq.number = recno;
1067 freq.format = format;
1068 freq.stream = a->encode;
1069 freq.surrogate_flag = 0;
1070 freq.referenceId = referenceId;
1071 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1073 *pres = Z_PRES_FAILURE;
1074 return diagrec(a, 2, "Backend interface problem");
1076 /* backend should be able to signal whether error is system-wide
1077 or only pertaining to current record */
1080 if (!freq.surrogate_flag)
1082 *pres = Z_PRES_FAILURE;
1083 return diagrec(a, fres->errcode, fres->errstring);
1085 reclist->records[reclist->num_records] =
1086 surrogatediagrec(a, fres->basename, fres->errcode,
1088 reclist->num_records++;
1089 *next = fres->last_in_set ? 0 : recno + 1;
1093 this_length = fres->len;
1095 this_length = odr_total(a->encode) - total_length;
1096 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1097 this_length, total_length);
1098 if (this_length + total_length > a->preferredMessageSize)
1100 /* record is small enough, really */
1101 if (this_length <= a->preferredMessageSize)
1103 logf(LOG_DEBUG, " Dropped last normal-sized record");
1104 *pres = Z_PRES_PARTIAL_2;
1107 /* record can only be fetched by itself */
1108 if (this_length < a->maximumRecordSize)
1110 logf(LOG_DEBUG, " Record > prefmsgsz");
1113 logf(LOG_DEBUG, " Dropped it");
1114 reclist->records[reclist->num_records] =
1115 surrogatediagrec(a, fres->basename, 16, 0);
1116 reclist->num_records++;
1117 *next = fres->last_in_set ? 0 : recno + 1;
1118 dumped_records += this_length;
1122 else /* too big entirely */
1124 logf(LOG_DEBUG, "Record > maxrcdsz");
1125 reclist->records[reclist->num_records] =
1126 surrogatediagrec(a, fres->basename, 17, 0);
1127 reclist->num_records++;
1128 *next = fres->last_in_set ? 0 : recno + 1;
1129 dumped_records += this_length;
1134 if (!(thisrec = (Z_NamePlusRecord *)
1135 odr_malloc(a->encode, sizeof(*thisrec))))
1137 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1138 strlen(fres->basename) + 1)))
1140 strcpy(thisrec->databaseName, fres->basename);
1141 thisrec->which = Z_NamePlusRecord_databaseRecord;
1142 thisrec->u.databaseRecord = z_ext_record(a->encode, fres->format,
1143 fres->record, fres->len);
1144 if (!thisrec->u.databaseRecord)
1146 reclist->records[reclist->num_records] = thisrec;
1147 reclist->num_records++;
1148 *next = fres->last_in_set ? 0 : recno + 1;
1150 *num = reclist->num_records;
1154 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1157 Z_SearchRequest *req = reqb->request->u.searchRequest;
1158 bend_search_rr *bsrr =
1159 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1161 logf(LOG_LOG, "Got SearchRequest.");
1163 bsrr->request = reqb;
1164 bsrr->association = assoc;
1165 bsrr->referenceId = req->referenceId;
1166 save_referenceId (reqb, bsrr->referenceId);
1168 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1169 if (req->databaseNames)
1172 for (i = 0; i < req->num_databaseNames; i++)
1173 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1175 switch (req->query->which)
1177 case Z_Query_type_1: case Z_Query_type_101:
1178 log_rpn_query (req->query->u.type_1);
1180 if (assoc->bend_search)
1182 bsrr->setname = req->resultSetName;
1183 bsrr->replace_set = *req->replaceIndicator;
1184 bsrr->num_bases = req->num_databaseNames;
1185 bsrr->basenames = req->databaseNames;
1186 bsrr->query = req->query;
1187 bsrr->stream = assoc->encode;
1188 bsrr->decode = assoc->decode;
1191 bsrr->errstring = NULL;
1192 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1193 (assoc->backend, bsrr);
1199 bend_searchrequest bsrq;
1200 bend_searchresult *bsrt;
1202 bsrq.setname = req->resultSetName;
1203 bsrq.replace_set = *req->replaceIndicator;
1204 bsrq.num_bases = req->num_databaseNames;
1205 bsrq.basenames = req->databaseNames;
1206 bsrq.query = req->query;
1207 bsrq.referenceId = req->referenceId;
1208 bsrq.stream = assoc->encode;
1209 bsrq.decode = assoc->decode;
1210 if (!(bsrt = bend_search (assoc->backend, &bsrq, fd)))
1212 bsrr->hits = bsrt->hits;
1213 bsrr->errcode = bsrt->errcode;
1214 bsrr->errstring = bsrt->errstring;
1216 return response_searchRequest(assoc, reqb, bsrr, fd);
1219 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1222 * Prepare a searchresponse based on the backend results. We probably want
1223 * to look at making the fetching of records nonblocking as well, but
1224 * so far, we'll keep things simple.
1225 * If bsrt is null, that means we're called in response to a communications
1226 * event, and we'll have to get the response for ourselves.
1228 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1229 bend_search_rr *bsrt, int *fd)
1231 Z_SearchRequest *req = reqb->request->u.searchRequest;
1232 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1233 Z_SearchResponse *resp = (Z_SearchResponse *)
1234 odr_malloc (assoc->encode, sizeof(*resp));
1235 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1236 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1237 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1238 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1245 apdu->which = Z_APDU_searchResponse;
1246 apdu->u.searchResponse = resp;
1247 resp->referenceId = req->referenceId;
1248 resp->additionalSearchInfo = 0;
1249 resp->otherInfo = 0;
1251 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1253 logf(LOG_FATAL, "Bad result from backend");
1256 else if (bsrt->errcode)
1258 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1259 resp->resultCount = nulint;
1260 resp->numberOfRecordsReturned = nulint;
1261 resp->nextResultSetPosition = nulint;
1262 resp->searchStatus = nulint;
1263 resp->resultSetStatus = none;
1264 resp->presentStatus = 0;
1268 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1269 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1270 Z_RecordComposition comp, *compp = 0;
1275 resp->resultCount = &bsrt->hits;
1277 comp.which = Z_RecordComp_simple;
1278 /* how many records does the user agent want, then? */
1279 if (bsrt->hits <= *req->smallSetUpperBound)
1281 *toget = bsrt->hits;
1282 if ((comp.u.simple = req->smallSetElementSetNames))
1285 else if (bsrt->hits < *req->largeSetLowerBound)
1287 *toget = *req->mediumSetPresentNumber;
1288 if (*toget > bsrt->hits)
1289 *toget = bsrt->hits;
1290 if ((comp.u.simple = req->mediumSetElementSetNames))
1296 if (*toget && !resp->records)
1301 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1302 prefformat->oclass != CLASS_RECSYN)
1305 form = prefformat->value;
1306 resp->records = pack_records(assoc, req->resultSetName, 1,
1307 toget, compp, next, presst, form, req->referenceId);
1310 resp->numberOfRecordsReturned = toget;
1311 resp->nextResultSetPosition = next;
1312 resp->searchStatus = sr;
1313 resp->resultSetStatus = 0;
1314 resp->presentStatus = presst;
1318 if (*resp->resultCount)
1320 resp->numberOfRecordsReturned = nulint;
1321 resp->nextResultSetPosition = next;
1322 resp->searchStatus = sr;
1323 resp->resultSetStatus = 0;
1324 resp->presentStatus = 0;
1331 * Maybe we got a little over-friendly when we designed bend_fetch to
1332 * get only one record at a time. Some backends can optimise multiple-record
1333 * fetches, and at any rate, there is some overhead involved in
1334 * all that selecting and hopping around. Problem is, of course, that the
1335 * frontend can't know ahead of time how many records it'll need to
1336 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1337 * is downright lousy as a bulk data transfer protocol.
1339 * To start with, we'll do the fetching of records from the backend
1340 * in one operation: To save some trips in and out of the event-handler,
1341 * and to simplify the interface to pack_records. At any rate, asynch
1342 * operation is more fun in operations that have an unpredictable execution
1343 * speed - which is normally more true for search than for present.
1345 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1348 Z_PresentRequest *req = reqb->request->u.presentRequest;
1352 Z_PresentResponse *resp;
1357 logf(LOG_LOG, "Got PresentRequest.");
1359 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1360 prefformat->oclass != CLASS_RECSYN)
1363 form = prefformat->value;
1364 if (assoc->bend_present)
1366 bend_present_rr *bprr = (bend_present_rr *)
1367 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1368 bprr->setname = req->resultSetId;
1369 bprr->start = *req->resultSetStartPoint;
1370 bprr->number = *req->numberOfRecordsRequested;
1371 bprr->format = form;
1372 bprr->comp = req->recordComposition;
1373 bprr->referenceId = req->referenceId;
1374 bprr->stream = assoc->encode;
1375 bprr->request = reqb;
1376 bprr->association = assoc;
1378 bprr->errstring = NULL;
1379 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(
1380 assoc->backend, bprr);
1385 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1386 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1387 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1388 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1389 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1392 *num = *req->numberOfRecordsRequested;
1394 apdu->which = Z_APDU_presentResponse;
1395 apdu->u.presentResponse = resp;
1396 resp->referenceId = req->referenceId;
1397 resp->otherInfo = 0;
1400 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1401 num, req->recordComposition, next, presst, form,
1405 resp->numberOfRecordsReturned = num;
1406 resp->presentStatus = presst;
1407 resp->nextResultSetPosition = next;
1413 * Scan was implemented rather in a hurry, and with support for only the basic
1414 * elements of the service in the backend API. Suggestions are welcome.
1416 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1418 Z_ScanRequest *req = reqb->request->u.scanRequest;
1419 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1420 Z_ScanResponse *res = (Z_ScanResponse *)
1421 odr_malloc (assoc->encode, sizeof(*res));
1422 int *scanStatus = (int *)
1423 odr_malloc (assoc->encode, sizeof(*scanStatus));
1424 int *numberOfEntriesReturned = (int *)
1425 odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1426 Z_ListEntries *ents = (Z_ListEntries *)
1427 odr_malloc (assoc->encode, sizeof(*ents));
1428 Z_DiagRecs *diagrecs_p = NULL;
1430 bend_scanrequest srq;
1431 bend_scanresult *srs;
1434 logf(LOG_LOG, "Got ScanRequest");
1435 *scanStatus = Z_Scan_failure;
1436 *numberOfEntriesReturned = 0;
1438 apdu->which = Z_APDU_scanResponse;
1439 apdu->u.scanResponse = res;
1440 res->referenceId = req->referenceId;
1442 res->scanStatus = scanStatus;
1443 res->numberOfEntriesReturned = numberOfEntriesReturned;
1444 res->positionOfTerm = 0;
1445 res->entries = ents;
1446 ents->num_entries = 0;
1447 ents->entries = NULL;
1448 ents->num_nonsurrogateDiagnostics = 0;
1449 ents->nonsurrogateDiagnostics = NULL;
1450 res->attributeSet = 0;
1453 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1454 attent->oclass != CLASS_ATTSET
1455 || attent->value != VAL_BIB1))
1456 diagrecs_p = diagrecs(assoc, 121, 0);
1457 else if (req->stepSize && *req->stepSize > 0)
1458 diagrecs_p = diagrecs(assoc, 205, 0);
1461 if (req->databaseNames)
1464 for (i = 0; i < req->num_databaseNames; i++)
1465 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1467 srq.num_bases = req->num_databaseNames;
1468 srq.basenames = req->databaseNames;
1469 srq.num_entries = *req->numberOfTermsRequested;
1470 srq.term = req->termListAndStartPoint;
1471 srq.referenceId = req->referenceId;
1472 srq.stream = assoc->encode;
1473 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1474 attset->oclass != CLASS_RECSYN)
1475 srq.attributeset = VAL_NONE;
1477 srq.attributeset = attset->value;
1478 log_scan_term (req->termListAndStartPoint, attset->value);
1479 srq.term_position = req->preferredPositionInResponse ?
1480 *req->preferredPositionInResponse : 1;
1481 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1482 diagrecs_p = diagrecs(assoc, 2, 0);
1483 else if (srs->errcode)
1484 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1488 Z_Entry **tab = (Z_Entry **)
1489 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1491 if (srs->status == BEND_SCAN_PARTIAL)
1492 *scanStatus = Z_Scan_partial_5;
1494 *scanStatus = Z_Scan_success;
1495 ents->entries = tab;
1496 ents->num_entries = srs->num_entries;
1497 res->numberOfEntriesReturned = &ents->num_entries;
1498 res->positionOfTerm = &srs->term_position;
1499 for (i = 0; i < srs->num_entries; i++)
1505 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1506 if (srs->entries[i].occurrences >= 0)
1508 e->which = Z_Entry_termInfo;
1509 e->u.termInfo = t = (Z_TermInfo *)
1510 odr_malloc(assoc->encode, sizeof(*t));
1511 t->suggestedAttributes = 0;
1513 t->alternativeTerm = 0;
1514 t->byAttributes = 0;
1515 t->otherTermInfo = 0;
1516 t->globalOccurrences = &srs->entries[i].occurrences;
1517 t->term = (Z_Term *)
1518 odr_malloc(assoc->encode, sizeof(*t->term));
1519 t->term->which = Z_Term_general;
1520 t->term->u.general = o =
1521 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1522 o->buf = (unsigned char *)
1523 odr_malloc(assoc->encode, o->len = o->size =
1524 strlen(srs->entries[i].term));
1525 memcpy(o->buf, srs->entries[i].term, o->len);
1526 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1527 srs->entries[i].term, srs->entries[i].occurrences);
1531 Z_DiagRecs *drecs = diagrecs (assoc,
1532 srs->entries[i].errcode,
1533 srs->entries[i].errstring);
1534 assert (drecs->num_diagRecs == 1);
1535 e->which = Z_Entry_surrogateDiagnostic;
1536 assert (drecs->diagRecs[0]);
1537 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1544 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1545 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1550 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1553 Z_SortRequest *req = reqb->request->u.sortRequest;
1554 Z_SortResponse *res = (Z_SortResponse *)
1555 odr_malloc (assoc->encode, sizeof(*res));
1556 bend_sort_rr *bsrr = (bend_sort_rr *)
1557 odr_malloc (assoc->encode, sizeof(*bsrr));
1559 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1561 logf(LOG_LOG, "Got SortRequest.");
1564 bsrr->num_input_setnames = req->num_inputResultSetNames;
1565 bsrr->input_setnames = req->inputResultSetNames;
1567 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1568 bsrr->input_setnames = req->inputResultSetNames->strings;
1570 bsrr->referenceId = req->referenceId;
1571 bsrr->output_setname = req->sortedResultSetName;
1572 bsrr->sort_sequence = req->sortSequence;
1573 bsrr->stream = assoc->encode;
1575 bsrr->sort_status = Z_SortStatus_failure;
1577 bsrr->errstring = 0;
1579 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend,
1582 res->referenceId = bsrr->referenceId;
1583 res->sortStatus = (int *)
1584 odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1585 *res->sortStatus = bsrr->sort_status;
1586 res->resultSetStatus = 0;
1589 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1591 res->diagnostics = dr->diagRecs;
1592 res->num_diagnostics = dr->num_diagRecs;
1594 res->diagnostics = dr;
1600 res->num_diagnostics = 0;
1602 res->diagnostics = 0;
1606 apdu->which = Z_APDU_sortResponse;
1607 apdu->u.sortResponse = res;
1611 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1614 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1615 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1616 odr_malloc (assoc->encode, sizeof(*res));
1617 bend_delete_rr *bdrr = (bend_delete_rr *)
1618 odr_malloc (assoc->encode, sizeof(*bdrr));
1619 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1621 logf(LOG_LOG, "Got DeleteRequest.");
1623 bdrr->num_setnames = req->num_resultSetList;
1624 bdrr->setnames = req->resultSetList;
1625 bdrr->stream = assoc->encode;
1626 bdrr->function = *req->deleteFunction;
1627 bdrr->referenceId = req->referenceId;
1629 ((int (*)(void *, bend_delete_rr *))
1630 (*assoc->bend_delete))(assoc->backend, bdrr);
1632 res->referenceId = req->referenceId;
1634 res->deleteOperationStatus = (int *)
1635 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1636 *res->deleteOperationStatus = bdrr->delete_status;
1638 res->deleteListStatuses = 0;
1639 res->numberNotDeleted = 0;
1640 res->bulkStatuses = 0;
1641 res->deleteMessage = 0;
1644 apdu->which = Z_APDU_deleteResultSetResponse;
1645 apdu->u.deleteResultSetResponse = res;
1649 static void process_close(association *assoc, request *reqb)
1651 Z_Close *req = reqb->request->u.close;
1652 static char *reasons[] =
1659 "securityViolation",
1666 logf(LOG_LOG, "Got Close, reason %s, message %s",
1667 reasons[*req->closeReason], req->diagnosticInformation ?
1668 req->diagnosticInformation : "NULL");
1669 if (assoc->version < 3) /* to make do_force respond with close */
1671 do_close_req(assoc, Z_Close_finished,
1672 "Association terminated by client", reqb);
1675 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1679 reqb->len_refid = refid->len;
1680 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1681 memcpy (reqb->refid, refid->buf, refid->len);
1685 reqb->len_refid = 0;
1690 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1692 process_response (a, req, res);
1695 bend_request bend_request_mk (bend_association a)
1697 request *nreq = request_get (&a->outgoing);
1698 nreq->request_mem = nmem_create ();
1702 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1707 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1708 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1709 id->len = id->size = req->len_refid;
1710 memcpy (id->buf, req->refid, req->len_refid);
1714 void bend_request_destroy (bend_request *req)
1716 nmem_destroy((*req)->request_mem);
1717 request_release(*req);
1721 int bend_backend_respond (bend_association a, bend_request req)
1723 return process_request (a, req);
1726 void bend_request_setdata(bend_request r, void *p)
1731 void *bend_request_getdata(bend_request r)
1733 return r->clientData;
1736 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1738 bend_esrequest_rr esrequest;
1740 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1741 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1743 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1745 logf(LOG_DEBUG,"inside Process esRequest");
1747 esrequest.esr = reqb->request->u.extendedServicesRequest;
1748 esrequest.stream = assoc->encode;
1749 esrequest.errcode = 0;
1750 esrequest.errstring = NULL;
1751 esrequest.request = reqb;
1752 esrequest.association = assoc;
1753 esrequest.referenceId = req->referenceId;
1755 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))
1756 (assoc->backend, &esrequest);
1758 /* If the response is being delayed, return NULL */
1759 if (esrequest.request == NULL)
1762 resp->referenceId = req->referenceId;
1764 if ( esrequest.errcode == 0 )
1766 /* Backend service indicates request will be processed */
1767 logf(LOG_DEBUG,"Request will be processed...Good !");
1768 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1772 /* Backend indicates error, request will not be processed */
1773 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1774 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1776 /* Do something with the members of bend_extendedservice */
1778 logf(LOG_DEBUG,"Send the result apdu");