2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.91 1999-06-01 14:29:12 adam
8 * Work on Extended Services.
10 * Revision 1.90 1999/05/27 13:02:20 adam
11 * Assigned OID for old DB Update (VAL_DBUPDATE0).
13 * Revision 1.89 1999/05/26 15:24:26 adam
14 * Fixed minor bugs regarding DB Update (introduced by previous commit).
16 * Revision 1.88 1999/04/20 09:56:48 adam
17 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
18 * Modified all encoders/decoders to reflect this change.
20 * Revision 1.87 1999/03/31 11:18:25 adam
21 * Implemented odr_strdup. Added Reference ID to backend server API.
23 * Revision 1.86 1999/02/02 13:57:38 adam
24 * Uses preprocessor define WIN32 instead of WINDOWS to build code
25 * for Microsoft WIN32.
27 * Revision 1.85 1998/11/17 09:52:59 adam
28 * Fixed minor bug (introduced by previous commit).
30 * Revision 1.84 1998/11/16 16:02:32 adam
31 * Added loggin utilies, log_rpn_query and log_scan_term. These used
32 * to be part of Zebra.
34 * Revision 1.83 1998/11/03 10:09:36 adam
35 * Fixed bug regarding YC.
37 * Revision 1.82 1998/10/20 14:00:30 quinn
40 * Revision 1.81 1998/10/13 16:12:24 adam
41 * Added support for Surrogate Diagnostics for Scan Term entries.
43 * Revision 1.80 1998/09/02 12:41:53 adam
44 * Added decode stream in bend search structures.
46 * Revision 1.79 1998/08/19 16:10:08 adam
47 * Changed som member names of DeleteResultSetRequest/Response.
49 * Revision 1.78 1998/08/03 10:23:55 adam
50 * Fixed bug regarding Options for Sort.
52 * Revision 1.77 1998/07/20 12:38:42 adam
53 * Implemented delete result set service to server API.
55 * Revision 1.76 1998/05/27 16:57:07 adam
56 * Support for surrogate diagnostic records added for bend_fetch.
58 * Revision 1.75 1998/05/18 10:13:07 adam
59 * Fixed call to es_request handler - extra argument was passed.
61 * Revision 1.74 1998/03/31 15:13:20 adam
62 * Development towards compiled ASN.1.
64 * Revision 1.73 1998/03/31 11:07:45 adam
65 * Furhter work on UNIverse resource report.
66 * Added Extended Services handling in frontend server.
68 * Revision 1.72 1998/02/11 11:53:35 adam
69 * Changed code so that it compiles as C++.
71 * Revision 1.71 1998/02/10 11:03:57 adam
72 * Added support for extended handlers in backend server interface.
74 * Revision 1.70 1998/01/29 13:15:35 adam
75 * Implemented sort for the backend interface.
77 * Revision 1.69 1997/09/30 11:48:12 adam
78 * Fixed bug introduced by previous commit.
80 * Revision 1.68 1997/09/29 13:18:59 adam
81 * Added function, oid_ent_to_oid, to replace the function
82 * oid_getoidbyent, which is not thread safe.
84 * Revision 1.67 1997/09/17 12:10:40 adam
87 * Revision 1.66 1997/09/05 15:26:44 adam
88 * Added ODR encode in search and scen bend request structures.
89 * Fixed a few enums that caused trouble with C++.
91 * Revision 1.65 1997/09/01 08:53:01 adam
92 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
93 * moved a separate directory. MSV5.0 project server.dsp created.
94 * As an option, the server can now operate as an NT service.
96 * Revision 1.64 1997/04/30 08:52:11 quinn
99 * Revision 1.63 1996/10/11 11:57:26 quinn
102 * Revision 1.62 1996/07/06 19:58:35 quinn
103 * System headerfiles gathered in yconfig
105 * Revision 1.61 1996/06/10 08:56:16 quinn
108 * Revision 1.60 1996/05/30 11:03:10 quinn
109 * Fixed NextresultSetPosition bug fixed.
111 * Revision 1.59 1996/05/14 09:26:46 quinn
112 * Added attribute set to scan backend
114 * Revision 1.58 1996/02/20 12:53:04 quinn
117 * Revision 1.57 1996/01/02 08:57:47 quinn
118 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
120 * Revision 1.56 1995/12/14 11:09:57 quinn
123 * Revision 1.55 1995/11/08 17:41:37 quinn
126 * Revision 1.54 1995/11/08 15:11:29 quinn
127 * Log of close transmit.
129 * Revision 1.53 1995/11/01 13:54:58 quinn
132 * Revision 1.52 1995/11/01 12:19:13 quinn
133 * Second attempt to fix same bug.
135 * Revision 1.50 1995/10/25 16:58:32 quinn
138 * Revision 1.49 1995/10/16 13:51:53 quinn
139 * Changes to provide Especs to the backend.
141 * Revision 1.48 1995/10/06 08:51:20 quinn
142 * Added Write-buffer.
144 * Revision 1.47 1995/08/29 14:24:16 quinn
145 * Added second half of close-handshake
147 * Revision 1.46 1995/08/29 11:17:58 quinn
148 * Added code to receive close
150 * Revision 1.45 1995/08/21 09:11:00 quinn
151 * Smallish fixes to suppport new formats.
153 * Revision 1.44 1995/08/17 12:45:25 quinn
154 * Fixed minor problems with GRS-1. Added support in c&s.
156 * Revision 1.43 1995/08/15 12:00:31 quinn
159 * Revision 1.42 1995/08/15 11:16:50 quinn
161 * Revision 1.41 1995/08/02 10:23:06 quinn
164 * Revision 1.40 1995/07/31 14:34:26 quinn
165 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
167 * Revision 1.39 1995/06/27 13:21:00 quinn
170 * Revision 1.38 1995/06/19 12:39:11 quinn
171 * Fixed bug in timeout code. Added BER dumper.
173 * Revision 1.37 1995/06/16 13:16:14 quinn
174 * Fixed Defaultdiagformat.
176 * Revision 1.36 1995/06/16 10:31:36 quinn
177 * Added session timeout.
179 * Revision 1.35 1995/06/15 07:45:14 quinn
182 * Revision 1.34 1995/06/14 15:26:46 quinn
183 * *** empty log message ***
185 * Revision 1.33 1995/06/06 14:57:05 quinn
186 * Better diagnostics.
188 * Revision 1.32 1995/06/06 08:41:44 quinn
189 * Better diagnostics.
191 * Revision 1.31 1995/06/06 08:15:37 quinn
194 * Revision 1.30 1995/06/05 10:53:32 quinn
195 * Added a better SCAN.
197 * Revision 1.29 1995/06/01 11:25:03 quinn
200 * Revision 1.28 1995/06/01 11:21:01 quinn
201 * Attempting to fix a bug in pack-records. replaced break with continue
202 * for large records, according to standard.
204 * Revision 1.27 1995/05/29 08:12:06 quinn
207 * Revision 1.26 1995/05/18 13:02:12 quinn
210 * Revision 1.25 1995/05/17 08:42:26 quinn
211 * Transfer auth info to backend. Allow backend to reject init gracefully.
213 * Revision 1.24 1995/05/16 08:51:04 quinn
214 * License, documentation, and memory fixes
216 * Revision 1.23 1995/05/15 13:25:10 quinn
219 * Revision 1.22 1995/05/15 11:56:39 quinn
220 * Asynchronous facilities. Restructuring of seshigh code.
222 * Revision 1.21 1995/05/02 08:53:19 quinn
223 * Trying in vain to fix comm with ISODE
225 * Revision 1.20 1995/04/20 15:13:00 quinn
228 * Revision 1.19 1995/04/18 08:15:34 quinn
229 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
230 * neater. We'll make the same change for decoding one day.
232 * Revision 1.18 1995/04/17 11:28:25 quinn
235 * Revision 1.17 1995/04/10 10:23:36 quinn
236 * Some work to add scan and other things.
238 * Revision 1.16 1995/03/31 09:18:55 quinn
241 * Revision 1.15 1995/03/30 14:03:23 quinn
242 * Added RFC1006 as separate library
244 * Revision 1.14 1995/03/30 12:18:17 quinn
247 * Revision 1.13 1995/03/30 09:09:24 quinn
248 * Added state-handle and some support for asynchronous activities.
250 * Revision 1.12 1995/03/29 15:40:16 quinn
251 * Ongoing work. Statserv is now dynamic by default
253 * Revision 1.11 1995/03/28 09:16:21 quinn
254 * Added record packing to the search request
256 * Revision 1.10 1995/03/27 08:34:24 quinn
257 * Added dynamic server functionality.
258 * Released bindings to session.c (is now redundant)
260 * Revision 1.9 1995/03/22 15:01:26 quinn
261 * Adjusting record packing.
263 * Revision 1.8 1995/03/22 10:13:21 quinn
264 * Working on record packer
266 * Revision 1.7 1995/03/21 15:53:31 quinn
269 * Revision 1.6 1995/03/21 12:30:09 quinn
270 * Beginning to add support for record packing.
272 * Revision 1.5 1995/03/17 10:44:13 quinn
273 * Added catch of null-string in makediagrec
275 * Revision 1.4 1995/03/17 10:18:08 quinn
276 * Added memory management.
278 * Revision 1.3 1995/03/16 17:42:39 quinn
281 * Revision 1.2 1995/03/16 13:29:01 quinn
282 * Partitioned server.
284 * Revision 1.1 1995/03/15 16:02:10 quinn
285 * Modded session.c to seshigh.c
290 * Frontend server logic.
292 * This code receives incoming APDUs, and handles client requests by means
293 * of the backend API.
295 * Some of the code is getting quite involved, compared to simpler servers -
296 * primarily because it is asynchronous both in the communication with
297 * the user and the backend. We think the complexity will pay off in
298 * the form of greater flexibility when more asynchronous facilities
301 * Memory management has become somewhat involved. In the simple case, where
302 * only one PDU is pending at a time, it will simply reuse the same memory,
303 * once it has found its working size. When we enable multiple concurrent
304 * operations, perhaps even with multiple parallel calls to the backend, it
305 * will maintain a pool of buffers for encoding and decoding, trying to
306 * minimize memory allocation/deallocation during normal operation.
308 * TODOs include (and will be done in order of public interest):
310 * Support for EXPLAIN - provide simple meta-database system.
311 * Support for access control.
312 * Support for resource control.
313 * Support for extended services - primarily Item Order.
314 * Rest of Z39.50-1994
329 #include <comstack.h>
336 #include <statserv.h>
340 static int process_request(association *assoc, request *req);
341 void backend_response(IOCHAN i, int event);
342 static int process_response(association *assoc, request *req, Z_APDU *res);
343 static Z_APDU *process_initRequest(association *assoc, request *reqb);
344 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
346 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
347 bend_search_rr *bsrr, int *fd);
348 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
350 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
351 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
352 static void process_close(association *assoc, request *reqb);
353 void save_referenceId (request *reqb, Z_ReferenceId *refid);
354 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
357 static FILE *apduf = 0; /* for use in static mode */
358 static statserv_options_block *control_block = 0;
360 /* Chas: Added in from DALI */
361 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
362 /* Chas: End of addition from DALI */
365 * Create and initialize a new association-handle.
366 * channel : iochannel for the current line.
367 * link : communications channel.
368 * Returns: 0 or a new association handle.
370 association *create_association(IOCHAN channel, COMSTACK link)
375 control_block = statserv_getcontrol();
376 if (!(anew = (association *)xmalloc(sizeof(*anew))))
378 anew->client_chan = channel;
379 anew->client_link = link;
380 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
381 !(anew->encode = odr_createmem(ODR_ENCODE)))
383 if (*control_block->apdufile)
388 strcpy(filename, control_block->apdufile);
389 if (!(anew->print = odr_createmem(ODR_PRINT)))
391 if (*control_block->apdufile != '-')
393 strcpy(filename, control_block->apdufile);
394 if (!control_block->dynamic)
398 if (!(apduf = fopen(filename, "w")))
400 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
403 setvbuf(apduf, 0, _IONBF, 0);
409 sprintf(filename + strlen(filename), ".%d", getpid());
410 if (!(f = fopen(filename, "w")))
412 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
415 setvbuf(f, 0, _IONBF, 0);
417 odr_setprint(anew->print, f);
422 anew->input_buffer = 0;
423 anew->input_buffer_len = 0;
425 anew->state = ASSOC_NEW;
426 request_initq(&anew->incoming);
427 request_initq(&anew->outgoing);
428 anew->proto = cs_getproto(link);
433 * Free association and release resources.
435 void destroy_association(association *h)
437 odr_destroy(h->decode);
438 odr_destroy(h->encode);
440 odr_destroy(h->print);
442 xfree(h->input_buffer);
444 bend_close(h->backend);
445 while (request_deq(&h->incoming));
446 while (request_deq(&h->outgoing));
447 request_delq(&h->incoming);
448 request_delq(&h->outgoing);
452 static void do_close_req(association *a, int reason, char *message,
456 Z_Close *cls = zget_Close(a->encode);
458 /* Purge request queue */
459 while (request_deq(&a->incoming));
460 while (request_deq(&a->outgoing));
463 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
464 reason, message ? message : "none");
465 apdu.which = Z_APDU_close;
467 *cls->closeReason = reason;
468 cls->diagnosticInformation = message;
469 process_response(a, req, &apdu);
470 iochan_settimeout(a->client_chan, 60);
474 logf(LOG_DEBUG, "v2 client. No Close PDU");
475 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
477 a->state = ASSOC_DEAD;
480 static void do_close(association *a, int reason, char *message)
482 do_close_req (a, reason, message, request_get(&a->outgoing));
486 * This is where PDUs from the client are read and the further
487 * processing is initiated. Flow of control moves down through the
488 * various process_* functions below, until the encoded result comes back up
489 * to the output handler in here.
491 * h : the I/O channel that has an outstanding event.
492 * event : the current outstanding event.
494 void ir_session(IOCHAN h, int event)
497 association *assoc = (association *)iochan_getdata(h);
498 COMSTACK conn = assoc->client_link;
501 assert(h && conn && assoc);
502 if (event == EVENT_TIMEOUT)
504 if (assoc->state != ASSOC_UP)
506 logf(LOG_LOG, "Final timeout - closing connection.");
508 destroy_association(assoc);
513 logf(LOG_LOG, "Session idle too long. Sending close.");
514 do_close(assoc, Z_Close_lackOfActivity, 0);
518 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
520 if (event & EVENT_INPUT)
522 logf(LOG_DEBUG, "ir_session (input)");
523 assert(assoc && conn);
524 /* We aren't speaking to this fellow */
525 if (assoc->state == ASSOC_DEAD)
527 logf(LOG_LOG, "Closed connection after reject");
529 destroy_association(assoc);
533 if ((res = cs_get(conn, &assoc->input_buffer,
534 &assoc->input_buffer_len)) <= 0)
536 logf(LOG_LOG, "Connection closed by client");
538 destroy_association(assoc);
542 else if (res == 1) /* incomplete read - wait for more */
544 if (cs_more(conn)) /* more stuff - call us again later, please */
545 iochan_setevent(h, EVENT_INPUT);
547 /* we got a complete PDU. Let's decode it */
548 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
549 req = request_get(&assoc->incoming); /* get a new request structure */
550 odr_reset(assoc->decode);
551 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
552 if (!z_APDU(assoc->decode, &req->request, 0, 0))
554 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
555 odr_errmsg(odr_geterror(assoc->decode)),
556 odr_offset(assoc->decode));
557 logf(LOG_LOG, "PDU dump:");
558 odr_dumpBER(log_file(), assoc->input_buffer, res);
559 do_close(assoc, Z_Close_protocolError, "Malformed package");
562 req->request_mem = odr_extract_mem(assoc->decode);
563 if (assoc->print && !z_APDU(assoc->print, &req->request, 0, 0))
565 logf(LOG_WARN, "ODR print error: %s",
566 odr_errmsg(odr_geterror(assoc->print)));
567 odr_reset(assoc->print);
569 request_enq(&assoc->incoming, req);
572 /* can we do something yet? */
573 req = request_head(&assoc->incoming);
574 if (req->state == REQUEST_IDLE)
576 request_deq(&assoc->incoming);
577 if (process_request(assoc, req) < 0)
578 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
582 if (event & EVENT_OUTPUT)
584 request *req = request_head(&assoc->outgoing);
586 logf(LOG_DEBUG, "ir_session (output)");
587 req->state = REQUEST_PENDING;
588 switch (res = cs_put(conn, req->response, req->len_response))
591 logf(LOG_LOG, "Connection closed by client");
593 destroy_association(assoc);
596 case 0: /* all sent - release the request structure */
597 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
598 nmem_destroy(req->request_mem);
599 request_deq(&assoc->outgoing);
600 request_release(req);
601 if (!request_head(&assoc->outgoing))
602 iochan_clearflag(h, EVENT_OUTPUT);
604 /* value of 1 -- partial send -- is simply ignored */
607 if (event & EVENT_EXCEPT)
609 logf(LOG_DEBUG, "ir_session (exception)");
611 destroy_association(assoc);
617 * Initiate request processing.
619 static int process_request(association *assoc, request *req)
625 assert(req && req->state == REQUEST_IDLE);
626 switch (req->request->which)
628 case Z_APDU_initRequest:
629 res = process_initRequest(assoc, req); break;
630 case Z_APDU_searchRequest:
631 res = process_searchRequest(assoc, req, &fd); break;
632 case Z_APDU_presentRequest:
633 res = process_presentRequest(assoc, req, &fd); break;
634 case Z_APDU_scanRequest:
635 res = process_scanRequest(assoc, req, &fd); break;
636 case Z_APDU_extendedServicesRequest:
637 if (assoc->bend_esrequest)
638 res = process_ESRequest(assoc, req, &fd);
641 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
645 case Z_APDU_sortRequest:
646 if (assoc->bend_sort)
647 res = process_sortRequest(assoc, req, &fd);
650 logf(LOG_WARN, "Cannot handle SORT APDU");
655 process_close(assoc, req); return 0;
656 case Z_APDU_deleteResultSetRequest:
657 if (assoc->bend_delete)
658 res = process_deleteRequest(assoc, req, &fd);
661 logf (LOG_WARN, "Cannot handle Delete APDU");
666 logf(LOG_WARN, "Bad APDU received");
671 logf(LOG_DEBUG, " result immediately available");
672 retval = process_response(assoc, req, res);
676 logf(LOG_DEBUG, " result unavailble");
679 else /* no result yet - one will be provided later */
683 /* Set up an I/O handler for the fd supplied by the backend */
685 logf(LOG_DEBUG, " establishing handler for result");
686 req->state = REQUEST_PENDING;
687 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
689 iochan_setdata(chan, assoc);
696 * Handle message from the backend.
698 void backend_response(IOCHAN i, int event)
700 association *assoc = (association *)iochan_getdata(i);
701 request *req = request_head(&assoc->incoming);
705 logf(LOG_DEBUG, "backend_response");
706 assert(assoc && req && req->state != REQUEST_IDLE);
707 /* determine what it is we're waiting for */
708 switch (req->request->which)
710 case Z_APDU_searchRequest:
711 res = response_searchRequest(assoc, req, 0, &fd); break;
713 case Z_APDU_presentRequest:
714 res = response_presentRequest(assoc, req, 0, &fd); break;
715 case Z_APDU_scanRequest:
716 res = response_scanRequest(assoc, req, 0, &fd); break;
719 logf(LOG_WARN, "Serious programmer's lapse or bug");
722 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
724 logf(LOG_LOG, "Fatal error when talking to backend");
725 do_close(assoc, Z_Close_systemProblem, 0);
729 else if (!res) /* no result yet - try again later */
731 logf(LOG_DEBUG, " no result yet");
732 iochan_setfd(i, fd); /* in case fd has changed */
737 * Encode response, and transfer the request structure to the outgoing queue.
739 static int process_response(association *assoc, request *req, Z_APDU *res)
741 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
742 if (!z_APDU(assoc->encode, &res, 0, 0))
744 logf(LOG_WARN, "ODR error when encoding response: %s",
745 odr_errmsg(odr_geterror(assoc->decode)));
746 odr_reset(assoc->encode);
749 req->response = odr_getbuf(assoc->encode, &req->len_response,
750 &req->size_response);
751 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
752 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
754 logf(LOG_WARN, "ODR print error: %s",
755 odr_errmsg(odr_geterror(assoc->print)));
756 odr_reset(assoc->print);
758 odr_reset(assoc->encode);
759 req->state = REQUEST_IDLE;
760 request_enq(&assoc->outgoing, req);
761 /* turn the work over to the ir_session handler */
762 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
763 /* Is there more work to be done? give that to the input handler too */
765 if (request_head(&assoc->incoming))
767 logf (LOG_DEBUG, "more work to be done");
768 iochan_setevent(assoc->client_chan, EVENT_WORK);
775 * Handle init request.
776 * At the moment, we don't check the options
777 * anywhere else in the code - we just try not to do anything that would
778 * break a naive client. We'll toss 'em into the association block when
779 * we need them there.
781 static Z_APDU *process_initRequest(association *assoc, request *reqb)
783 Z_InitRequest *req = reqb->request->u.initRequest;
784 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
785 Z_InitResponse *resp = apdu->u.initResponse;
786 bend_initrequest binitreq;
787 bend_initresult *binitres;
790 logf(LOG_LOG, "Got initRequest");
791 if (req->implementationId)
792 logf(LOG_LOG, "Id: %s", req->implementationId);
793 if (req->implementationName)
794 logf(LOG_LOG, "Name: %s", req->implementationName);
795 if (req->implementationVersion)
796 logf(LOG_LOG, "Version: %s", req->implementationVersion);
798 binitreq.stream = assoc->encode;
799 binitreq.configname = "default-config";
800 binitreq.auth = req->idAuthentication;
801 binitreq.referenceId = req->referenceId;
802 binitreq.bend_sort = NULL;
803 binitreq.bend_search = NULL;
804 binitreq.bend_present = NULL;
805 binitreq.bend_esrequest = NULL;
806 binitreq.bend_delete = NULL;
807 if (!(binitres = bend_init(&binitreq)))
809 logf(LOG_WARN, "Bad response from backend.");
813 assoc->backend = binitres->handle;
814 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
815 logf (LOG_DEBUG, "Sort handler installed");
816 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
817 logf (LOG_DEBUG, "Search handler installed");
818 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
819 logf (LOG_DEBUG, "Present handler installed");
820 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
821 logf (LOG_DEBUG, "ESRequest handler installed");
822 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
823 logf (LOG_DEBUG, "Delete handler installed");
825 resp->referenceId = req->referenceId;
827 /* let's tell the client what we can do */
828 if (ODR_MASK_GET(req->options, Z_Options_search))
830 ODR_MASK_SET(resp->options, Z_Options_search);
831 strcat(options, "srch");
833 if (ODR_MASK_GET(req->options, Z_Options_present))
835 ODR_MASK_SET(resp->options, Z_Options_present);
836 strcat(options, " prst");
838 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
840 ODR_MASK_SET(resp->options, Z_Options_delSet);
841 strcat(options, " del");
843 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
844 binitreq.bend_esrequest)
846 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
847 strcat (options, " extendedServices");
849 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
851 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
852 strcat(options, " namedresults");
854 if (ODR_MASK_GET(req->options, Z_Options_scan))
856 ODR_MASK_SET(resp->options, Z_Options_scan);
857 strcat(options, " scan");
859 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
861 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
862 strcat(options, " concurop");
864 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
866 ODR_MASK_SET(resp->options, Z_Options_sort);
867 strcat(options, " sort");
869 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
871 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
872 assoc->version = 2; /* 1 & 2 are equivalent */
874 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
876 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
879 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
881 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
884 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
885 assoc->maximumRecordSize = *req->maximumRecordSize;
886 if (assoc->maximumRecordSize > control_block->maxrecordsize)
887 assoc->maximumRecordSize = control_block->maxrecordsize;
888 assoc->preferredMessageSize = *req->preferredMessageSize;
889 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
890 assoc->preferredMessageSize = assoc->maximumRecordSize;
891 resp->preferredMessageSize = &assoc->preferredMessageSize;
892 resp->maximumRecordSize = &assoc->maximumRecordSize;
893 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
894 if (binitres->errcode)
896 logf(LOG_LOG, "Connection rejected by backend.");
898 assoc->state = ASSOC_DEAD;
901 assoc->state = ASSOC_UP;
906 * These functions should be merged.
909 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
912 dr->which = Z_DefaultDiagFormat_v2Addinfo;
913 dr->u.v2Addinfo = addinfo ? addinfo : "";
915 dr->which = Z_DiagForm_v2AddInfo;
916 dr->addinfo = addinfo ? addinfo : "";
921 * nonsurrogate diagnostic record.
923 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
926 Z_Records *rec = (Z_Records *)
927 odr_malloc (assoc->encode, sizeof(*rec));
930 odr_malloc (assoc->encode, sizeof(*err));
931 Z_DiagRec *drec = (Z_DiagRec *)
932 odr_malloc (assoc->encode, sizeof(*drec));
933 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
934 odr_malloc (assoc->encode, sizeof(*dr));
936 bib1.proto = assoc->proto;
937 bib1.oclass = CLASS_DIAGSET;
938 bib1.value = VAL_BIB1;
940 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
943 rec->which = Z_Records_NSD;
945 rec->u.nonSurrogateDiagnostic = dr;
947 rec->u.nonSurrogateDiagnostic = drec;
948 drec->which = Z_DiagRec_defaultFormat;
949 drec->u.defaultFormat = dr;
951 dr->diagnosticSetId =
952 odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid));
954 set_addinfo (dr, addinfo);
959 * surrogate diagnostic.
961 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
962 int error, char *addinfo)
965 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
966 odr_malloc (assoc->encode, sizeof(*rec));
967 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
969 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
970 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
971 odr_malloc (assoc->encode, sizeof(*dr));
973 bib1.proto = assoc->proto;
974 bib1.oclass = CLASS_DIAGSET;
975 bib1.value = VAL_BIB1;
977 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
979 rec->databaseName = dbname;
980 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
981 rec->u.surrogateDiagnostic = drec;
982 drec->which = Z_DiagRec_defaultFormat;
983 drec->u.defaultFormat = dr;
984 dr->diagnosticSetId = odr_oiddup (assoc->encode,
985 oid_ent_to_oid(&bib1, oid));
987 set_addinfo (dr, addinfo);
993 * multiple nonsurrogate diagnostics.
995 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
998 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
999 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
1001 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1002 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1003 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
1005 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1006 bib1.proto = assoc->proto;
1007 bib1.oclass = CLASS_DIAGSET;
1008 bib1.value = VAL_BIB1;
1011 recs->num_diagRecs = 1;
1012 recs->diagRecs = recp;
1014 drec->which = Z_DiagRec_defaultFormat;
1015 drec->u.defaultFormat = rec;
1017 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1018 oid_ent_to_oid(&bib1, oid));
1019 rec->condition = err;
1022 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1023 rec->u.v2Addinfo = addinfo ? addinfo : "";
1025 rec->which = Z_DiagForm_v2AddInfo;
1026 rec->addinfo = addinfo ? addinfo : "";
1031 static Z_Records *pack_records(association *a, char *setname, int start,
1032 int *num, Z_RecordComposition *comp,
1033 int *next, int *pres, oid_value format,
1034 Z_ReferenceId *referenceId)
1036 int recno, total_length = 0, toget = *num, dumped_records = 0;
1037 Z_Records *records =
1038 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1039 Z_NamePlusRecordList *reclist =
1040 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1041 Z_NamePlusRecord **list =
1042 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1044 records->which = Z_Records_DBOSD;
1045 records->u.databaseOrSurDiagnostics = reclist;
1046 reclist->num_records = 0;
1047 reclist->records = list;
1048 *pres = Z_PRES_SUCCESS;
1052 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1053 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1054 a->maximumRecordSize);
1055 for (recno = start; reclist->num_records < toget; recno++)
1057 bend_fetchrequest freq;
1058 bend_fetchresult *fres;
1059 Z_NamePlusRecord *thisrec;
1060 int this_length = 0;
1062 * we get the number of bytes allocated on the stream before any
1063 * allocation done by the backend - this should give us a reasonable
1064 * idea of the total size of the data so far.
1066 total_length = odr_total(a->encode) - dumped_records;
1067 freq.setname = setname;
1068 freq.number = recno;
1070 freq.format = format;
1071 freq.stream = a->encode;
1072 freq.surrogate_flag = 0;
1073 freq.referenceId = referenceId;
1074 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1076 *pres = Z_PRES_FAILURE;
1077 return diagrec(a, 2, "Backend interface problem");
1079 /* backend should be able to signal whether error is system-wide
1080 or only pertaining to current record */
1083 if (!freq.surrogate_flag)
1085 *pres = Z_PRES_FAILURE;
1086 return diagrec(a, fres->errcode, fres->errstring);
1088 reclist->records[reclist->num_records] =
1089 surrogatediagrec(a, fres->basename, fres->errcode,
1091 reclist->num_records++;
1092 *next = fres->last_in_set ? 0 : recno + 1;
1096 this_length = fres->len;
1098 this_length = odr_total(a->encode) - total_length;
1099 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1100 this_length, total_length);
1101 if (this_length + total_length > a->preferredMessageSize)
1103 /* record is small enough, really */
1104 if (this_length <= a->preferredMessageSize)
1106 logf(LOG_DEBUG, " Dropped last normal-sized record");
1107 *pres = Z_PRES_PARTIAL_2;
1110 /* record can only be fetched by itself */
1111 if (this_length < a->maximumRecordSize)
1113 logf(LOG_DEBUG, " Record > prefmsgsz");
1116 logf(LOG_DEBUG, " Dropped it");
1117 reclist->records[reclist->num_records] =
1118 surrogatediagrec(a, fres->basename, 16, 0);
1119 reclist->num_records++;
1120 *next = fres->last_in_set ? 0 : recno + 1;
1121 dumped_records += this_length;
1125 else /* too big entirely */
1127 logf(LOG_DEBUG, "Record > maxrcdsz");
1128 reclist->records[reclist->num_records] =
1129 surrogatediagrec(a, fres->basename, 17, 0);
1130 reclist->num_records++;
1131 *next = fres->last_in_set ? 0 : recno + 1;
1132 dumped_records += this_length;
1137 if (!(thisrec = (Z_NamePlusRecord *)
1138 odr_malloc(a->encode, sizeof(*thisrec))))
1140 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1141 strlen(fres->basename) + 1)))
1143 strcpy(thisrec->databaseName, fres->basename);
1144 thisrec->which = Z_NamePlusRecord_databaseRecord;
1145 thisrec->u.databaseRecord = z_ext_record(a->encode, fres->format,
1146 fres->record, fres->len);
1147 if (!thisrec->u.databaseRecord)
1149 reclist->records[reclist->num_records] = thisrec;
1150 reclist->num_records++;
1151 *next = fres->last_in_set ? 0 : recno + 1;
1153 *num = reclist->num_records;
1157 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1160 Z_SearchRequest *req = reqb->request->u.searchRequest;
1161 bend_search_rr *bsrr =
1162 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1164 logf(LOG_LOG, "Got SearchRequest.");
1166 bsrr->request = reqb;
1167 bsrr->association = assoc;
1168 bsrr->referenceId = req->referenceId;
1169 save_referenceId (reqb, bsrr->referenceId);
1171 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1172 if (req->databaseNames)
1175 for (i = 0; i < req->num_databaseNames; i++)
1176 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1178 switch (req->query->which)
1180 case Z_Query_type_1: case Z_Query_type_101:
1181 log_rpn_query (req->query->u.type_1);
1183 if (assoc->bend_search)
1185 bsrr->setname = req->resultSetName;
1186 bsrr->replace_set = *req->replaceIndicator;
1187 bsrr->num_bases = req->num_databaseNames;
1188 bsrr->basenames = req->databaseNames;
1189 bsrr->query = req->query;
1190 bsrr->stream = assoc->encode;
1191 bsrr->decode = assoc->decode;
1194 bsrr->errstring = NULL;
1195 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1196 (assoc->backend, bsrr);
1202 bend_searchrequest bsrq;
1203 bend_searchresult *bsrt;
1205 bsrq.setname = req->resultSetName;
1206 bsrq.replace_set = *req->replaceIndicator;
1207 bsrq.num_bases = req->num_databaseNames;
1208 bsrq.basenames = req->databaseNames;
1209 bsrq.query = req->query;
1210 bsrq.referenceId = req->referenceId;
1211 bsrq.stream = assoc->encode;
1212 bsrq.decode = assoc->decode;
1213 if (!(bsrt = bend_search (assoc->backend, &bsrq, fd)))
1215 bsrr->hits = bsrt->hits;
1216 bsrr->errcode = bsrt->errcode;
1217 bsrr->errstring = bsrt->errstring;
1219 return response_searchRequest(assoc, reqb, bsrr, fd);
1222 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1225 * Prepare a searchresponse based on the backend results. We probably want
1226 * to look at making the fetching of records nonblocking as well, but
1227 * so far, we'll keep things simple.
1228 * If bsrt is null, that means we're called in response to a communications
1229 * event, and we'll have to get the response for ourselves.
1231 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1232 bend_search_rr *bsrt, int *fd)
1234 Z_SearchRequest *req = reqb->request->u.searchRequest;
1235 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1236 Z_SearchResponse *resp = (Z_SearchResponse *)
1237 odr_malloc (assoc->encode, sizeof(*resp));
1238 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1239 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1240 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1241 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1248 apdu->which = Z_APDU_searchResponse;
1249 apdu->u.searchResponse = resp;
1250 resp->referenceId = req->referenceId;
1251 resp->additionalSearchInfo = 0;
1252 resp->otherInfo = 0;
1254 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1256 logf(LOG_FATAL, "Bad result from backend");
1259 else if (bsrt->errcode)
1261 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1262 resp->resultCount = nulint;
1263 resp->numberOfRecordsReturned = nulint;
1264 resp->nextResultSetPosition = nulint;
1265 resp->searchStatus = nulint;
1266 resp->resultSetStatus = none;
1267 resp->presentStatus = 0;
1271 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1272 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1273 Z_RecordComposition comp, *compp = 0;
1278 resp->resultCount = &bsrt->hits;
1280 comp.which = Z_RecordComp_simple;
1281 /* how many records does the user agent want, then? */
1282 if (bsrt->hits <= *req->smallSetUpperBound)
1284 *toget = bsrt->hits;
1285 if ((comp.u.simple = req->smallSetElementSetNames))
1288 else if (bsrt->hits < *req->largeSetLowerBound)
1290 *toget = *req->mediumSetPresentNumber;
1291 if (*toget > bsrt->hits)
1292 *toget = bsrt->hits;
1293 if ((comp.u.simple = req->mediumSetElementSetNames))
1299 if (*toget && !resp->records)
1304 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1305 prefformat->oclass != CLASS_RECSYN)
1308 form = prefformat->value;
1309 resp->records = pack_records(assoc, req->resultSetName, 1,
1310 toget, compp, next, presst, form, req->referenceId);
1313 resp->numberOfRecordsReturned = toget;
1314 resp->nextResultSetPosition = next;
1315 resp->searchStatus = sr;
1316 resp->resultSetStatus = 0;
1317 resp->presentStatus = presst;
1321 if (*resp->resultCount)
1323 resp->numberOfRecordsReturned = nulint;
1324 resp->nextResultSetPosition = next;
1325 resp->searchStatus = sr;
1326 resp->resultSetStatus = 0;
1327 resp->presentStatus = 0;
1334 * Maybe we got a little over-friendly when we designed bend_fetch to
1335 * get only one record at a time. Some backends can optimise multiple-record
1336 * fetches, and at any rate, there is some overhead involved in
1337 * all that selecting and hopping around. Problem is, of course, that the
1338 * frontend can't know ahead of time how many records it'll need to
1339 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1340 * is downright lousy as a bulk data transfer protocol.
1342 * To start with, we'll do the fetching of records from the backend
1343 * in one operation: To save some trips in and out of the event-handler,
1344 * and to simplify the interface to pack_records. At any rate, asynch
1345 * operation is more fun in operations that have an unpredictable execution
1346 * speed - which is normally more true for search than for present.
1348 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1351 Z_PresentRequest *req = reqb->request->u.presentRequest;
1355 Z_PresentResponse *resp;
1360 logf(LOG_LOG, "Got PresentRequest.");
1362 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1363 prefformat->oclass != CLASS_RECSYN)
1366 form = prefformat->value;
1367 if (assoc->bend_present)
1369 bend_present_rr *bprr = (bend_present_rr *)
1370 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1371 bprr->setname = req->resultSetId;
1372 bprr->start = *req->resultSetStartPoint;
1373 bprr->number = *req->numberOfRecordsRequested;
1374 bprr->format = form;
1375 bprr->comp = req->recordComposition;
1376 bprr->referenceId = req->referenceId;
1377 bprr->stream = assoc->encode;
1378 bprr->request = reqb;
1379 bprr->association = assoc;
1381 bprr->errstring = NULL;
1382 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(
1383 assoc->backend, bprr);
1388 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1389 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1390 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1391 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1392 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1395 *num = *req->numberOfRecordsRequested;
1397 apdu->which = Z_APDU_presentResponse;
1398 apdu->u.presentResponse = resp;
1399 resp->referenceId = req->referenceId;
1400 resp->otherInfo = 0;
1403 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1404 num, req->recordComposition, next, presst, form,
1408 resp->numberOfRecordsReturned = num;
1409 resp->presentStatus = presst;
1410 resp->nextResultSetPosition = next;
1416 * Scan was implemented rather in a hurry, and with support for only the basic
1417 * elements of the service in the backend API. Suggestions are welcome.
1419 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1421 Z_ScanRequest *req = reqb->request->u.scanRequest;
1422 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1423 Z_ScanResponse *res = (Z_ScanResponse *)
1424 odr_malloc (assoc->encode, sizeof(*res));
1425 int *scanStatus = (int *)
1426 odr_malloc (assoc->encode, sizeof(*scanStatus));
1427 int *numberOfEntriesReturned = (int *)
1428 odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1429 Z_ListEntries *ents = (Z_ListEntries *)
1430 odr_malloc (assoc->encode, sizeof(*ents));
1431 Z_DiagRecs *diagrecs_p = NULL;
1433 bend_scanrequest srq;
1434 bend_scanresult *srs;
1437 logf(LOG_LOG, "Got ScanRequest");
1438 *scanStatus = Z_Scan_failure;
1439 *numberOfEntriesReturned = 0;
1441 apdu->which = Z_APDU_scanResponse;
1442 apdu->u.scanResponse = res;
1443 res->referenceId = req->referenceId;
1445 res->scanStatus = scanStatus;
1446 res->numberOfEntriesReturned = numberOfEntriesReturned;
1447 res->positionOfTerm = 0;
1448 res->entries = ents;
1449 ents->num_entries = 0;
1450 ents->entries = NULL;
1451 ents->num_nonsurrogateDiagnostics = 0;
1452 ents->nonsurrogateDiagnostics = NULL;
1453 res->attributeSet = 0;
1456 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1457 attent->oclass != CLASS_ATTSET
1458 || attent->value != VAL_BIB1))
1459 diagrecs_p = diagrecs(assoc, 121, 0);
1460 else if (req->stepSize && *req->stepSize > 0)
1461 diagrecs_p = diagrecs(assoc, 205, 0);
1464 if (req->databaseNames)
1467 for (i = 0; i < req->num_databaseNames; i++)
1468 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1470 srq.num_bases = req->num_databaseNames;
1471 srq.basenames = req->databaseNames;
1472 srq.num_entries = *req->numberOfTermsRequested;
1473 srq.term = req->termListAndStartPoint;
1474 srq.referenceId = req->referenceId;
1475 srq.stream = assoc->encode;
1476 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1477 attset->oclass != CLASS_RECSYN)
1478 srq.attributeset = VAL_NONE;
1480 srq.attributeset = attset->value;
1481 log_scan_term (req->termListAndStartPoint, attset->value);
1482 srq.term_position = req->preferredPositionInResponse ?
1483 *req->preferredPositionInResponse : 1;
1484 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1485 diagrecs_p = diagrecs(assoc, 2, 0);
1486 else if (srs->errcode)
1487 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1491 Z_Entry **tab = (Z_Entry **)
1492 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1494 if (srs->status == BEND_SCAN_PARTIAL)
1495 *scanStatus = Z_Scan_partial_5;
1497 *scanStatus = Z_Scan_success;
1498 ents->entries = tab;
1499 ents->num_entries = srs->num_entries;
1500 res->numberOfEntriesReturned = &ents->num_entries;
1501 res->positionOfTerm = &srs->term_position;
1502 for (i = 0; i < srs->num_entries; i++)
1508 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1509 if (srs->entries[i].occurrences >= 0)
1511 e->which = Z_Entry_termInfo;
1512 e->u.termInfo = t = (Z_TermInfo *)
1513 odr_malloc(assoc->encode, sizeof(*t));
1514 t->suggestedAttributes = 0;
1516 t->alternativeTerm = 0;
1517 t->byAttributes = 0;
1518 t->otherTermInfo = 0;
1519 t->globalOccurrences = &srs->entries[i].occurrences;
1520 t->term = (Z_Term *)
1521 odr_malloc(assoc->encode, sizeof(*t->term));
1522 t->term->which = Z_Term_general;
1523 t->term->u.general = o =
1524 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1525 o->buf = (unsigned char *)
1526 odr_malloc(assoc->encode, o->len = o->size =
1527 strlen(srs->entries[i].term));
1528 memcpy(o->buf, srs->entries[i].term, o->len);
1529 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1530 srs->entries[i].term, srs->entries[i].occurrences);
1534 Z_DiagRecs *drecs = diagrecs (assoc,
1535 srs->entries[i].errcode,
1536 srs->entries[i].errstring);
1537 assert (drecs->num_diagRecs == 1);
1538 e->which = Z_Entry_surrogateDiagnostic;
1539 assert (drecs->diagRecs[0]);
1540 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1547 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1548 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1553 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1556 Z_SortRequest *req = reqb->request->u.sortRequest;
1557 Z_SortResponse *res = (Z_SortResponse *)
1558 odr_malloc (assoc->encode, sizeof(*res));
1559 bend_sort_rr *bsrr = (bend_sort_rr *)
1560 odr_malloc (assoc->encode, sizeof(*bsrr));
1562 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1564 logf(LOG_LOG, "Got SortRequest.");
1567 bsrr->num_input_setnames = req->num_inputResultSetNames;
1568 bsrr->input_setnames = req->inputResultSetNames;
1570 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1571 bsrr->input_setnames = req->inputResultSetNames->strings;
1573 bsrr->referenceId = req->referenceId;
1574 bsrr->output_setname = req->sortedResultSetName;
1575 bsrr->sort_sequence = req->sortSequence;
1576 bsrr->stream = assoc->encode;
1578 bsrr->sort_status = Z_SortStatus_failure;
1580 bsrr->errstring = 0;
1582 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend,
1585 res->referenceId = bsrr->referenceId;
1586 res->sortStatus = (int *)
1587 odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1588 *res->sortStatus = bsrr->sort_status;
1589 res->resultSetStatus = 0;
1592 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1594 res->diagnostics = dr->diagRecs;
1595 res->num_diagnostics = dr->num_diagRecs;
1597 res->diagnostics = dr;
1603 res->num_diagnostics = 0;
1605 res->diagnostics = 0;
1609 apdu->which = Z_APDU_sortResponse;
1610 apdu->u.sortResponse = res;
1614 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1617 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1618 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1619 odr_malloc (assoc->encode, sizeof(*res));
1620 bend_delete_rr *bdrr = (bend_delete_rr *)
1621 odr_malloc (assoc->encode, sizeof(*bdrr));
1622 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1624 logf(LOG_LOG, "Got DeleteRequest.");
1626 bdrr->num_setnames = req->num_resultSetList;
1627 bdrr->setnames = req->resultSetList;
1628 bdrr->stream = assoc->encode;
1629 bdrr->function = *req->deleteFunction;
1630 bdrr->referenceId = req->referenceId;
1632 ((int (*)(void *, bend_delete_rr *))
1633 (*assoc->bend_delete))(assoc->backend, bdrr);
1635 res->referenceId = req->referenceId;
1637 res->deleteOperationStatus = (int *)
1638 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1639 *res->deleteOperationStatus = bdrr->delete_status;
1641 res->deleteListStatuses = 0;
1642 res->numberNotDeleted = 0;
1643 res->bulkStatuses = 0;
1644 res->deleteMessage = 0;
1647 apdu->which = Z_APDU_deleteResultSetResponse;
1648 apdu->u.deleteResultSetResponse = res;
1652 static void process_close(association *assoc, request *reqb)
1654 Z_Close *req = reqb->request->u.close;
1655 static char *reasons[] =
1662 "securityViolation",
1669 logf(LOG_LOG, "Got Close, reason %s, message %s",
1670 reasons[*req->closeReason], req->diagnosticInformation ?
1671 req->diagnosticInformation : "NULL");
1672 if (assoc->version < 3) /* to make do_force respond with close */
1674 do_close_req(assoc, Z_Close_finished,
1675 "Association terminated by client", reqb);
1678 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1682 reqb->len_refid = refid->len;
1683 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1684 memcpy (reqb->refid, refid->buf, refid->len);
1688 reqb->len_refid = 0;
1693 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1695 process_response (a, req, res);
1698 bend_request bend_request_mk (bend_association a)
1700 request *nreq = request_get (&a->outgoing);
1701 nreq->request_mem = nmem_create ();
1705 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1710 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1711 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1712 id->len = id->size = req->len_refid;
1713 memcpy (id->buf, req->refid, req->len_refid);
1717 void bend_request_destroy (bend_request *req)
1719 nmem_destroy((*req)->request_mem);
1720 request_release(*req);
1724 int bend_backend_respond (bend_association a, bend_request req)
1726 return process_request (a, req);
1729 void bend_request_setdata(bend_request r, void *p)
1734 void *bend_request_getdata(bend_request r)
1736 return r->clientData;
1739 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1741 bend_esrequest_rr esrequest;
1743 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1744 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1746 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1748 logf(LOG_DEBUG,"inside Process esRequest");
1750 esrequest.esr = reqb->request->u.extendedServicesRequest;
1751 esrequest.stream = assoc->encode;
1752 esrequest.errcode = 0;
1753 esrequest.errstring = NULL;
1754 esrequest.request = reqb;
1755 esrequest.association = assoc;
1756 esrequest.referenceId = req->referenceId;
1758 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))
1759 (assoc->backend, &esrequest);
1761 /* If the response is being delayed, return NULL */
1762 if (esrequest.request == NULL)
1765 resp->referenceId = req->referenceId;
1767 if (esrequest.errcode == -1)
1769 /* Backend service indicates request will be processed */
1770 logf(LOG_DEBUG,"Request could be processed...Accepted !");
1771 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
1773 else if (esrequest.errcode == 0)
1775 /* Backend service indicates request will be processed */
1776 logf(LOG_DEBUG,"Request could be processed...Done !");
1777 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1781 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
1782 esrequest.errstring);
1784 /* Backend indicates error, request will not be processed */
1785 logf(LOG_DEBUG,"Request could not be processed...failure !");
1786 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1787 resp->num_diagnostics = diagRecs->num_diagRecs;
1788 resp->diagnostics = diagRecs->diagRecs;
1790 /* Do something with the members of bend_extendedservice */
1792 logf(LOG_DEBUG,"Send the result apdu");