2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.81 1998-10-13 16:12:24 adam
8 * Added support for Surrogate Diagnostics for Scan Term entries.
10 * Revision 1.80 1998/09/02 12:41:53 adam
11 * Added decode stream in bend search structures.
13 * Revision 1.79 1998/08/19 16:10:08 adam
14 * Changed som member names of DeleteResultSetRequest/Response.
16 * Revision 1.78 1998/08/03 10:23:55 adam
17 * Fixed bug regarding Options for Sort.
19 * Revision 1.77 1998/07/20 12:38:42 adam
20 * Implemented delete result set service to server API.
22 * Revision 1.76 1998/05/27 16:57:07 adam
23 * Support for surrogate diagnostic records added for bend_fetch.
25 * Revision 1.75 1998/05/18 10:13:07 adam
26 * Fixed call to es_request handler - extra argument was passed.
28 * Revision 1.74 1998/03/31 15:13:20 adam
29 * Development towards compiled ASN.1.
31 * Revision 1.73 1998/03/31 11:07:45 adam
32 * Furhter work on UNIverse resource report.
33 * Added Extended Services handling in frontend server.
35 * Revision 1.72 1998/02/11 11:53:35 adam
36 * Changed code so that it compiles as C++.
38 * Revision 1.71 1998/02/10 11:03:57 adam
39 * Added support for extended handlers in backend server interface.
41 * Revision 1.70 1998/01/29 13:15:35 adam
42 * Implemented sort for the backend interface.
44 * Revision 1.69 1997/09/30 11:48:12 adam
45 * Fixed bug introduced by previous commit.
47 * Revision 1.68 1997/09/29 13:18:59 adam
48 * Added function, oid_ent_to_oid, to replace the function
49 * oid_getoidbyent, which is not thread safe.
51 * Revision 1.67 1997/09/17 12:10:40 adam
54 * Revision 1.66 1997/09/05 15:26:44 adam
55 * Added ODR encode in search and scen bend request structures.
56 * Fixed a few enums that caused trouble with C++.
58 * Revision 1.65 1997/09/01 08:53:01 adam
59 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
60 * moved a separate directory. MSV5.0 project server.dsp created.
61 * As an option, the server can now operate as an NT service.
63 * Revision 1.64 1997/04/30 08:52:11 quinn
66 * Revision 1.63 1996/10/11 11:57:26 quinn
69 * Revision 1.62 1996/07/06 19:58:35 quinn
70 * System headerfiles gathered in yconfig
72 * Revision 1.61 1996/06/10 08:56:16 quinn
75 * Revision 1.60 1996/05/30 11:03:10 quinn
76 * Fixed NextresultSetPosition bug fixed.
78 * Revision 1.59 1996/05/14 09:26:46 quinn
79 * Added attribute set to scan backend
81 * Revision 1.58 1996/02/20 12:53:04 quinn
84 * Revision 1.57 1996/01/02 08:57:47 quinn
85 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
87 * Revision 1.56 1995/12/14 11:09:57 quinn
90 * Revision 1.55 1995/11/08 17:41:37 quinn
93 * Revision 1.54 1995/11/08 15:11:29 quinn
94 * Log of close transmit.
96 * Revision 1.53 1995/11/01 13:54:58 quinn
99 * Revision 1.52 1995/11/01 12:19:13 quinn
100 * Second attempt to fix same bug.
102 * Revision 1.50 1995/10/25 16:58:32 quinn
105 * Revision 1.49 1995/10/16 13:51:53 quinn
106 * Changes to provide Especs to the backend.
108 * Revision 1.48 1995/10/06 08:51:20 quinn
109 * Added Write-buffer.
111 * Revision 1.47 1995/08/29 14:24:16 quinn
112 * Added second half of close-handshake
114 * Revision 1.46 1995/08/29 11:17:58 quinn
115 * Added code to receive close
117 * Revision 1.45 1995/08/21 09:11:00 quinn
118 * Smallish fixes to suppport new formats.
120 * Revision 1.44 1995/08/17 12:45:25 quinn
121 * Fixed minor problems with GRS-1. Added support in c&s.
123 * Revision 1.43 1995/08/15 12:00:31 quinn
126 * Revision 1.42 1995/08/15 11:16:50 quinn
128 * Revision 1.41 1995/08/02 10:23:06 quinn
131 * Revision 1.40 1995/07/31 14:34:26 quinn
132 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
134 * Revision 1.39 1995/06/27 13:21:00 quinn
137 * Revision 1.38 1995/06/19 12:39:11 quinn
138 * Fixed bug in timeout code. Added BER dumper.
140 * Revision 1.37 1995/06/16 13:16:14 quinn
141 * Fixed Defaultdiagformat.
143 * Revision 1.36 1995/06/16 10:31:36 quinn
144 * Added session timeout.
146 * Revision 1.35 1995/06/15 07:45:14 quinn
149 * Revision 1.34 1995/06/14 15:26:46 quinn
150 * *** empty log message ***
152 * Revision 1.33 1995/06/06 14:57:05 quinn
153 * Better diagnostics.
155 * Revision 1.32 1995/06/06 08:41:44 quinn
156 * Better diagnostics.
158 * Revision 1.31 1995/06/06 08:15:37 quinn
161 * Revision 1.30 1995/06/05 10:53:32 quinn
162 * Added a better SCAN.
164 * Revision 1.29 1995/06/01 11:25:03 quinn
167 * Revision 1.28 1995/06/01 11:21:01 quinn
168 * Attempting to fix a bug in pack-records. replaced break with continue
169 * for large records, according to standard.
171 * Revision 1.27 1995/05/29 08:12:06 quinn
174 * Revision 1.26 1995/05/18 13:02:12 quinn
177 * Revision 1.25 1995/05/17 08:42:26 quinn
178 * Transfer auth info to backend. Allow backend to reject init gracefully.
180 * Revision 1.24 1995/05/16 08:51:04 quinn
181 * License, documentation, and memory fixes
183 * Revision 1.23 1995/05/15 13:25:10 quinn
186 * Revision 1.22 1995/05/15 11:56:39 quinn
187 * Asynchronous facilities. Restructuring of seshigh code.
189 * Revision 1.21 1995/05/02 08:53:19 quinn
190 * Trying in vain to fix comm with ISODE
192 * Revision 1.20 1995/04/20 15:13:00 quinn
195 * Revision 1.19 1995/04/18 08:15:34 quinn
196 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
197 * neater. We'll make the same change for decoding one day.
199 * Revision 1.18 1995/04/17 11:28:25 quinn
202 * Revision 1.17 1995/04/10 10:23:36 quinn
203 * Some work to add scan and other things.
205 * Revision 1.16 1995/03/31 09:18:55 quinn
208 * Revision 1.15 1995/03/30 14:03:23 quinn
209 * Added RFC1006 as separate library
211 * Revision 1.14 1995/03/30 12:18:17 quinn
214 * Revision 1.13 1995/03/30 09:09:24 quinn
215 * Added state-handle and some support for asynchronous activities.
217 * Revision 1.12 1995/03/29 15:40:16 quinn
218 * Ongoing work. Statserv is now dynamic by default
220 * Revision 1.11 1995/03/28 09:16:21 quinn
221 * Added record packing to the search request
223 * Revision 1.10 1995/03/27 08:34:24 quinn
224 * Added dynamic server functionality.
225 * Released bindings to session.c (is now redundant)
227 * Revision 1.9 1995/03/22 15:01:26 quinn
228 * Adjusting record packing.
230 * Revision 1.8 1995/03/22 10:13:21 quinn
231 * Working on record packer
233 * Revision 1.7 1995/03/21 15:53:31 quinn
236 * Revision 1.6 1995/03/21 12:30:09 quinn
237 * Beginning to add support for record packing.
239 * Revision 1.5 1995/03/17 10:44:13 quinn
240 * Added catch of null-string in makediagrec
242 * Revision 1.4 1995/03/17 10:18:08 quinn
243 * Added memory management.
245 * Revision 1.3 1995/03/16 17:42:39 quinn
248 * Revision 1.2 1995/03/16 13:29:01 quinn
249 * Partitioned server.
251 * Revision 1.1 1995/03/15 16:02:10 quinn
252 * Modded session.c to seshigh.c
257 * Frontend server logic.
259 * This code receives incoming APDUs, and handles client requests by means
260 * of the backend API.
262 * Some of the code is getting quite involved, compared to simpler servers -
263 * primarily because it is asynchronous both in the communication with
264 * the user and the backend. We think the complexity will pay off in
265 * the form of greater flexibility when more asynchronous facilities
268 * Memory management has become somewhat involved. In the simple case, where
269 * only one PDU is pending at a time, it will simply reuse the same memory,
270 * once it has found its working size. When we enable multiple concurrent
271 * operations, perhaps even with multiple parallel calls to the backend, it
272 * will maintain a pool of buffers for encoding and decoding, trying to
273 * minimize memory allocation/deallocation during normal operation.
275 * TODOs include (and will be done in order of public interest):
277 * Support for EXPLAIN - provide simple meta-database system.
278 * Support for access control.
279 * Support for resource control.
280 * Support for extended services - primarily Item Order.
281 * Rest of Z39.50-1994
296 #include <comstack.h>
302 #include <statserv.h>
306 static int process_request(association *assoc, request *req);
307 void backend_response(IOCHAN i, int event);
308 static int process_response(association *assoc, request *req, Z_APDU *res);
309 static Z_APDU *process_initRequest(association *assoc, request *reqb);
310 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
312 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
313 bend_search_rr *bsrr, int *fd);
314 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
316 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
317 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
318 static void process_close(association *assoc, request *reqb);
319 void save_referenceId (request *reqb, Z_ReferenceId *refid);
320 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
323 static FILE *apduf = 0; /* for use in static mode */
324 static statserv_options_block *control_block = 0;
326 /* Chas: Added in from DALI */
327 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
328 /* Chas: End of addition from DALI */
331 * Create and initialize a new association-handle.
332 * channel : iochannel for the current line.
333 * link : communications channel.
334 * Returns: 0 or a new association handle.
336 association *create_association(IOCHAN channel, COMSTACK link)
341 control_block = statserv_getcontrol();
342 if (!(anew = (association *)xmalloc(sizeof(*anew))))
344 anew->client_chan = channel;
345 anew->client_link = link;
346 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
347 !(anew->encode = odr_createmem(ODR_ENCODE)))
349 if (*control_block->apdufile)
354 strcpy(filename, control_block->apdufile);
355 if (!(anew->print = odr_createmem(ODR_PRINT)))
357 if (*control_block->apdufile != '-')
359 strcpy(filename, control_block->apdufile);
360 if (!control_block->dynamic)
364 if (!(apduf = fopen(filename, "w")))
366 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
369 setvbuf(apduf, 0, _IONBF, 0);
375 sprintf(filename + strlen(filename), ".%d", getpid());
376 if (!(f = fopen(filename, "w")))
378 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
381 setvbuf(f, 0, _IONBF, 0);
383 odr_setprint(anew->print, f);
388 anew->input_buffer = 0;
389 anew->input_buffer_len = 0;
391 anew->state = ASSOC_NEW;
392 request_initq(&anew->incoming);
393 request_initq(&anew->outgoing);
394 anew->proto = cs_getproto(link);
399 * Free association and release resources.
401 void destroy_association(association *h)
403 odr_destroy(h->decode);
404 odr_destroy(h->encode);
406 odr_destroy(h->print);
408 xfree(h->input_buffer);
410 bend_close(h->backend);
411 while (request_deq(&h->incoming));
412 while (request_deq(&h->outgoing));
413 request_delq(&h->incoming);
414 request_delq(&h->outgoing);
418 static void do_close_req(association *a, int reason, char *message,
422 Z_Close *cls = zget_Close(a->encode);
424 /* Purge request queue */
425 while (request_deq(&a->incoming));
426 while (request_deq(&a->outgoing));
429 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
430 reason, message ? message : "none");
431 apdu.which = Z_APDU_close;
433 *cls->closeReason = reason;
434 cls->diagnosticInformation = message;
435 process_response(a, req, &apdu);
436 iochan_settimeout(a->client_chan, 60);
440 logf(LOG_DEBUG, "v2 client. No Close PDU");
441 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
443 a->state = ASSOC_DEAD;
446 static void do_close(association *a, int reason, char *message)
448 do_close_req (a, reason, message, request_get(&a->outgoing));
452 * This is where PDUs from the client are read and the further
453 * processing is initiated. Flow of control moves down through the
454 * various process_* functions below, until the encoded result comes back up
455 * to the output handler in here.
457 * h : the I/O channel that has an outstanding event.
458 * event : the current outstanding event.
460 void ir_session(IOCHAN h, int event)
463 association *assoc = (association *)iochan_getdata(h);
464 COMSTACK conn = assoc->client_link;
467 assert(h && conn && assoc);
468 if (event == EVENT_TIMEOUT)
470 if (assoc->state != ASSOC_UP)
472 logf(LOG_LOG, "Final timeout - closing connection.");
474 destroy_association(assoc);
479 logf(LOG_LOG, "Session idle too long. Sending close.");
480 do_close(assoc, Z_Close_lackOfActivity, 0);
484 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
486 if (event & EVENT_INPUT)
488 logf(LOG_DEBUG, "ir_session (input)");
489 assert(assoc && conn);
490 /* We aren't speaking to this fellow */
491 if (assoc->state == ASSOC_DEAD)
493 logf(LOG_LOG, "Closed connection after reject");
495 destroy_association(assoc);
499 if ((res = cs_get(conn, &assoc->input_buffer,
500 &assoc->input_buffer_len)) <= 0)
502 logf(LOG_LOG, "Connection closed by client");
504 destroy_association(assoc);
508 else if (res == 1) /* incomplete read - wait for more */
510 if (cs_more(conn)) /* more stuff - call us again later, please */
511 iochan_setevent(h, EVENT_INPUT);
513 /* we got a complete PDU. Let's decode it */
514 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
515 req = request_get(&assoc->incoming); /* get a new request structure */
516 odr_reset(assoc->decode);
517 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
518 if (!z_APDU(assoc->decode, &req->request, 0))
520 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
521 odr_errmsg(odr_geterror(assoc->decode)),
522 odr_offset(assoc->decode));
523 logf(LOG_LOG, "PDU dump:");
524 odr_dumpBER(log_file(), assoc->input_buffer, res);
525 do_close(assoc, Z_Close_protocolError, "Malformed package");
528 req->request_mem = odr_extract_mem(assoc->decode);
529 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
531 logf(LOG_WARN, "ODR print error: %s",
532 odr_errmsg(odr_geterror(assoc->print)));
533 odr_reset(assoc->print);
535 request_enq(&assoc->incoming, req);
538 /* can we do something yet? */
539 req = request_head(&assoc->incoming);
540 if (req->state == REQUEST_IDLE)
542 request_deq(&assoc->incoming);
543 if (process_request(assoc, req) < 0)
544 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
548 if (event & EVENT_OUTPUT)
550 request *req = request_head(&assoc->outgoing);
552 logf(LOG_DEBUG, "ir_session (output)");
553 req->state = REQUEST_PENDING;
554 switch (res = cs_put(conn, req->response, req->len_response))
557 logf(LOG_LOG, "Connection closed by client");
559 destroy_association(assoc);
562 case 0: /* all sent - release the request structure */
563 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
564 nmem_destroy(req->request_mem);
565 request_deq(&assoc->outgoing);
566 request_release(req);
567 if (!request_head(&assoc->outgoing))
568 iochan_clearflag(h, EVENT_OUTPUT);
570 /* value of 1 -- partial send -- is simply ignored */
573 if (event & EVENT_EXCEPT)
575 logf(LOG_DEBUG, "ir_session (exception)");
577 destroy_association(assoc);
583 * Initiate request processing.
585 static int process_request(association *assoc, request *req)
591 assert(req && req->state == REQUEST_IDLE);
592 switch (req->request->which)
594 case Z_APDU_initRequest:
595 res = process_initRequest(assoc, req); break;
596 case Z_APDU_searchRequest:
597 res = process_searchRequest(assoc, req, &fd); break;
598 case Z_APDU_presentRequest:
599 res = process_presentRequest(assoc, req, &fd); break;
600 case Z_APDU_scanRequest:
601 res = process_scanRequest(assoc, req, &fd); break;
602 case Z_APDU_extendedServicesRequest:
603 if (assoc->bend_esrequest)
604 res = process_ESRequest(assoc, req, &fd);
607 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
611 case Z_APDU_sortRequest:
612 if (assoc->bend_sort)
613 res = process_sortRequest(assoc, req, &fd);
616 logf(LOG_WARN, "Cannot handle SORT APDU");
621 process_close(assoc, req); return 0;
622 case Z_APDU_deleteResultSetRequest:
623 if (assoc->bend_delete)
624 res = process_deleteRequest(assoc, req, &fd);
627 logf (LOG_WARN, "Cannot handle Delete APDU");
632 logf(LOG_WARN, "Bad APDU received");
637 logf(LOG_DEBUG, " result immediately available");
638 retval = process_response(assoc, req, res);
642 logf(LOG_DEBUG, " result unavailble");
645 else /* no result yet - one will be provided later */
649 /* Set up an I/O handler for the fd supplied by the backend */
651 logf(LOG_DEBUG, " establishing handler for result");
652 req->state = REQUEST_PENDING;
653 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
655 iochan_setdata(chan, assoc);
662 * Handle message from the backend.
664 void backend_response(IOCHAN i, int event)
666 association *assoc = (association *)iochan_getdata(i);
667 request *req = request_head(&assoc->incoming);
671 logf(LOG_DEBUG, "backend_response");
672 assert(assoc && req && req->state != REQUEST_IDLE);
673 /* determine what it is we're waiting for */
674 switch (req->request->which)
676 case Z_APDU_searchRequest:
677 res = response_searchRequest(assoc, req, 0, &fd); break;
679 case Z_APDU_presentRequest:
680 res = response_presentRequest(assoc, req, 0, &fd); break;
681 case Z_APDU_scanRequest:
682 res = response_scanRequest(assoc, req, 0, &fd); break;
685 logf(LOG_WARN, "Serious programmer's lapse or bug");
688 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
690 logf(LOG_LOG, "Fatal error when talking to backend");
691 do_close(assoc, Z_Close_systemProblem, 0);
695 else if (!res) /* no result yet - try again later */
697 logf(LOG_DEBUG, " no result yet");
698 iochan_setfd(i, fd); /* in case fd has changed */
703 * Encode response, and transfer the request structure to the outgoing queue.
705 static int process_response(association *assoc, request *req, Z_APDU *res)
707 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
708 if (!z_APDU(assoc->encode, &res, 0))
710 logf(LOG_WARN, "ODR error when encoding response: %s",
711 odr_errmsg(odr_geterror(assoc->decode)));
712 odr_reset(assoc->encode);
715 req->response = odr_getbuf(assoc->encode, &req->len_response,
716 &req->size_response);
717 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
718 if (assoc->print && !z_APDU(assoc->print, &res, 0))
720 logf(LOG_WARN, "ODR print error: %s",
721 odr_errmsg(odr_geterror(assoc->print)));
722 odr_reset(assoc->print);
724 odr_reset(assoc->encode);
725 req->state = REQUEST_IDLE;
726 request_enq(&assoc->outgoing, req);
727 /* turn the work over to the ir_session handler */
728 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
729 /* Is there more work to be done? give that to the input handler too */
731 if (request_head(&assoc->incoming))
733 logf (LOG_DEBUG, "more work to be done");
734 iochan_setevent(assoc->client_chan, EVENT_WORK);
741 * Handle init request.
742 * At the moment, we don't check the options
743 * anywhere else in the code - we just try not to do anything that would
744 * break a naive client. We'll toss 'em into the association block when
745 * we need them there.
747 static Z_APDU *process_initRequest(association *assoc, request *reqb)
749 Z_InitRequest *req = reqb->request->u.initRequest;
750 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
751 Z_InitResponse *resp = apdu->u.initResponse;
752 bend_initrequest binitreq;
753 bend_initresult *binitres;
756 logf(LOG_LOG, "Got initRequest");
757 if (req->implementationId)
758 logf(LOG_LOG, "Id: %s", req->implementationId);
759 if (req->implementationName)
760 logf(LOG_LOG, "Name: %s", req->implementationName);
761 if (req->implementationVersion)
762 logf(LOG_LOG, "Version: %s", req->implementationVersion);
764 binitreq.stream = assoc->encode;
765 binitreq.configname = "default-config";
766 binitreq.auth = req->idAuthentication;
767 binitreq.bend_sort = NULL;
768 binitreq.bend_search = NULL;
769 binitreq.bend_present = NULL;
770 binitreq.bend_esrequest = NULL;
771 binitreq.bend_delete = NULL;
772 if (!(binitres = bend_init(&binitreq)))
774 logf(LOG_WARN, "Bad response from backend.");
778 assoc->backend = binitres->handle;
779 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
780 logf (LOG_DEBUG, "Sort handler installed");
781 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
782 logf (LOG_DEBUG, "Search handler installed");
783 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
784 logf (LOG_DEBUG, "Present handler installed");
785 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
786 logf (LOG_DEBUG, "ESRequest handler installed");
787 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
788 logf (LOG_DEBUG, "Delete handler installed");
790 resp->referenceId = req->referenceId;
792 /* let's tell the client what we can do */
793 if (ODR_MASK_GET(req->options, Z_Options_search))
795 ODR_MASK_SET(resp->options, Z_Options_search);
796 strcat(options, "srch");
798 if (ODR_MASK_GET(req->options, Z_Options_present))
800 ODR_MASK_SET(resp->options, Z_Options_present);
801 strcat(options, " prst");
803 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
805 ODR_MASK_SET(resp->options, Z_Options_delSet);
806 strcat(options, " del");
808 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
809 binitreq.bend_esrequest)
811 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
812 strcat (options, " extendedServices");
814 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
816 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
817 strcat(options, " namedresults");
819 if (ODR_MASK_GET(req->options, Z_Options_scan))
821 ODR_MASK_SET(resp->options, Z_Options_scan);
822 strcat(options, " scan");
824 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
826 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
827 strcat(options, " concurop");
829 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
831 ODR_MASK_SET(resp->options, Z_Options_sort);
832 strcat(options, " sort");
834 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
836 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
837 assoc->version = 2; /* 1 & 2 are equivalent */
839 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
841 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
844 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
846 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
849 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
850 assoc->maximumRecordSize = *req->maximumRecordSize;
851 if (assoc->maximumRecordSize > control_block->maxrecordsize)
852 assoc->maximumRecordSize = control_block->maxrecordsize;
853 assoc->preferredMessageSize = *req->preferredMessageSize;
854 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
855 assoc->preferredMessageSize = assoc->maximumRecordSize;
856 resp->preferredMessageSize = &assoc->preferredMessageSize;
857 resp->maximumRecordSize = &assoc->maximumRecordSize;
858 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
859 if (binitres->errcode)
861 logf(LOG_LOG, "Connection rejected by backend.");
863 assoc->state = ASSOC_DEAD;
866 assoc->state = ASSOC_UP;
871 * These functions should be merged.
874 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
877 dr->which = Z_DefaultDiagFormat_v2Addinfo;
878 dr->u.v2Addinfo = addinfo ? addinfo : "";
880 dr->which = Z_DiagForm_v2AddInfo;
881 dr->addinfo = addinfo ? addinfo : "";
886 * nonsurrogate diagnostic record.
888 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
891 Z_Records *rec = (Z_Records *)
892 odr_malloc (assoc->encode, sizeof(*rec));
895 odr_malloc (assoc->encode, sizeof(*err));
896 Z_DiagRec *drec = (Z_DiagRec *)
897 odr_malloc (assoc->encode, sizeof(*drec));
898 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
899 odr_malloc (assoc->encode, sizeof(*dr));
901 bib1.proto = assoc->proto;
902 bib1.oclass = CLASS_DIAGSET;
903 bib1.value = VAL_BIB1;
905 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
908 rec->which = Z_Records_NSD;
910 rec->u.nonSurrogateDiagnostic = dr;
913 rec->u.nonSurrogateDiagnostic = drec;
914 drec->which = Z_DiagRec_defaultFormat;
915 drec->u.defaultFormat = dr;
917 rec->u.nonSurrogateDiagnostic = dr;
920 dr->diagnosticSetId = odr_oiddup (assoc->encode,
921 oid_ent_to_oid(&bib1, oid));
923 set_addinfo (dr, addinfo);
928 * surrogate diagnostic.
930 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
931 int error, char *addinfo)
934 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
935 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
937 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
938 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
940 bib1.proto = assoc->proto;
941 bib1.oclass = CLASS_DIAGSET;
942 bib1.value = VAL_BIB1;
944 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
946 rec->databaseName = dbname;
947 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
948 rec->u.surrogateDiagnostic = drec;
949 drec->which = Z_DiagRec_defaultFormat;
950 drec->u.defaultFormat = dr;
951 dr->diagnosticSetId = odr_oiddup (assoc->encode,
952 oid_ent_to_oid(&bib1, oid));
954 set_addinfo (dr, addinfo);
960 * multiple nonsurrogate diagnostics.
962 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
965 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
966 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
968 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
969 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
970 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
972 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
973 bib1.proto = assoc->proto;
974 bib1.oclass = CLASS_DIAGSET;
975 bib1.value = VAL_BIB1;
978 recs->num_diagRecs = 1;
979 recs->diagRecs = recp;
981 drec->which = Z_DiagRec_defaultFormat;
982 drec->u.defaultFormat = rec;
984 rec->diagnosticSetId = odr_oiddup (assoc->encode,
985 oid_ent_to_oid(&bib1, oid));
986 rec->condition = err;
989 rec->which = Z_DefaultDiagFormat_v2Addinfo;
990 rec->u.v2Addinfo = addinfo ? addinfo : "";
992 rec->which = Z_DiagForm_v2AddInfo;
993 rec->addinfo = addinfo ? addinfo : "";
998 static Z_Records *pack_records(association *a, char *setname, int start,
999 int *num, Z_RecordComposition *comp,
1000 int *next, int *pres, oid_value format)
1003 int recno, total_length = 0, toget = *num, dumped_records = 0;
1004 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
1005 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
1006 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
1009 records->which = Z_Records_DBOSD;
1010 records->u.databaseOrSurDiagnostics = reclist;
1011 reclist->num_records = 0;
1012 reclist->records = list;
1013 *pres = Z_PRES_SUCCESS;
1017 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
1018 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1019 a->maximumRecordSize);
1020 for (recno = start; reclist->num_records < toget; recno++)
1022 bend_fetchrequest freq;
1023 bend_fetchresult *fres;
1024 Z_NamePlusRecord *thisrec;
1025 Z_DatabaseRecord *thisext;
1026 int this_length = 0;
1029 * we get the number of bytes allocated on the stream before any
1030 * allocation done by the backend - this should give us a reasonable
1031 * idea of the total size of the data so far.
1033 total_length = odr_total(a->encode) - dumped_records;
1034 freq.setname = setname;
1035 freq.number = recno;
1037 freq.format = format;
1038 freq.stream = a->encode;
1039 freq.surrogate_flag = 0;
1040 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1042 *pres = Z_PRES_FAILURE;
1043 return diagrec(a, 2, "Backend interface problem");
1045 /* backend should be able to signal whether error is system-wide
1046 or only pertaining to current record */
1049 if (!freq.surrogate_flag)
1051 *pres = Z_PRES_FAILURE;
1052 return diagrec(a, fres->errcode, fres->errstring);
1054 reclist->records[reclist->num_records] =
1055 surrogatediagrec(a, fres->basename, fres->errcode,
1057 reclist->num_records++;
1058 *next = fres->last_in_set ? 0 : recno + 1;
1062 this_length = fres->len;
1064 this_length = odr_total(a->encode) - total_length;
1065 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1066 this_length, total_length);
1067 if (this_length + total_length > a->preferredMessageSize)
1069 /* record is small enough, really */
1070 if (this_length <= a->preferredMessageSize)
1072 logf(LOG_DEBUG, " Dropped last normal-sized record");
1073 *pres = Z_PRES_PARTIAL_2;
1076 /* record can only be fetched by itself */
1077 if (this_length < a->maximumRecordSize)
1079 logf(LOG_DEBUG, " Record > prefmsgsz");
1082 logf(LOG_DEBUG, " Dropped it");
1083 reclist->records[reclist->num_records] =
1084 surrogatediagrec(a, fres->basename, 16, 0);
1085 reclist->num_records++;
1086 *next = fres->last_in_set ? 0 : recno + 1;
1087 dumped_records += this_length;
1091 else /* too big entirely */
1093 logf(LOG_DEBUG, "Record > maxrcdsz");
1094 reclist->records[reclist->num_records] =
1095 surrogatediagrec(a, fres->basename, 17, 0);
1096 reclist->num_records++;
1097 *next = fres->last_in_set ? 0 : recno + 1;
1098 dumped_records += this_length;
1103 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1105 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1106 strlen(fres->basename) + 1)))
1108 strcpy(thisrec->databaseName, fres->basename);
1109 thisrec->which = Z_NamePlusRecord_databaseRecord;
1110 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1111 sizeof(Z_DatabaseRecord))))
1113 recform.proto = a->proto;
1114 recform.oclass = CLASS_RECSYN;
1115 recform.value = fres->format;
1116 thisext->direct_reference = odr_oiddup(a->encode,
1117 oid_ent_to_oid(&recform, oid));
1118 thisext->indirect_reference = 0;
1119 thisext->descriptor = 0;
1120 if (fres->len < 0) /* Structured data */
1122 switch (fres->format)
1124 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1125 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1126 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1128 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1129 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1132 logf(LOG_FATAL, "Unknown structured format from backend.");
1137 * We cheat on the pointers here. Obviously, the record field
1138 * of the backend-fetch structure should have been a union for
1139 * correctness, but we're stuck with this for backwards
1142 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1144 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1147 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1149 memcpy(sutrs, fres->record, fres->len);
1150 sutrs[fres->len] = '\0';
1152 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1154 thisext->which = Z_External_sutrs;
1155 thisext->u.sutrs = sutrs;
1156 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1157 sutrs->len = sutrs->size = fres->len;
1158 memcpy(sutrs->buf, fres->record, fres->len);
1161 else /* octet-aligned record. */
1163 thisext->which = Z_External_octet;
1164 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1167 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1170 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1171 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1174 reclist->records[reclist->num_records] = thisrec;
1175 reclist->num_records++;
1176 *next = fres->last_in_set ? 0 : recno + 1;
1178 *num = reclist->num_records;
1182 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1185 Z_SearchRequest *req = reqb->request->u.searchRequest;
1186 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1188 logf(LOG_LOG, "Got SearchRequest.");
1189 save_referenceId (reqb, req->referenceId);
1190 /* store ref id in request */
1192 bsrr->request = reqb;
1193 bsrr->association = assoc;
1194 if (assoc->bend_search)
1196 bsrr->setname = req->resultSetName;
1197 bsrr->replace_set = *req->replaceIndicator;
1198 bsrr->num_bases = req->num_databaseNames;
1199 bsrr->basenames = req->databaseNames;
1200 bsrr->query = req->query;
1201 bsrr->stream = assoc->encode;
1202 bsrr->decode = assoc->decode;
1205 bsrr->errstring = NULL;
1206 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1212 bend_searchrequest bsrq;
1213 bend_searchresult *bsrt;
1215 bsrq.setname = req->resultSetName;
1216 bsrq.replace_set = *req->replaceIndicator;
1217 bsrq.num_bases = req->num_databaseNames;
1218 bsrq.basenames = req->databaseNames;
1219 bsrq.query = req->query;
1220 bsrq.stream = assoc->encode;
1221 bsrq.decode = assoc->decode;
1222 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1224 bsrr->hits = bsrt->hits;
1225 bsrr->errcode = bsrt->errcode;
1226 bsrr->errstring = bsrt->errstring;
1228 return response_searchRequest(assoc, reqb, bsrr, fd);
1231 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1234 * Prepare a searchresponse based on the backend results. We probably want
1235 * to look at making the fetching of records nonblocking as well, but
1236 * so far, we'll keep things simple.
1237 * If bsrt is null, that means we're called in response to a communications
1238 * event, and we'll have to get the response for ourselves.
1240 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1241 bend_search_rr *bsrt, int *fd)
1243 Z_SearchRequest *req = reqb->request->u.searchRequest;
1244 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1245 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1246 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1247 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1248 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1249 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1256 apdu->which = Z_APDU_searchResponse;
1257 apdu->u.searchResponse = resp;
1258 resp->referenceId = req->referenceId;
1259 resp->additionalSearchInfo = 0;
1260 resp->otherInfo = 0;
1262 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1264 logf(LOG_FATAL, "Bad result from backend");
1267 else if (bsrt->errcode)
1269 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1270 resp->resultCount = nulint;
1271 resp->numberOfRecordsReturned = nulint;
1272 resp->nextResultSetPosition = nulint;
1273 resp->searchStatus = nulint;
1274 resp->resultSetStatus = none;
1275 resp->presentStatus = 0;
1279 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1280 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1281 Z_RecordComposition comp, *compp = 0;
1286 resp->resultCount = &bsrt->hits;
1288 comp.which = Z_RecordComp_simple;
1289 /* how many records does the user agent want, then? */
1290 if (bsrt->hits <= *req->smallSetUpperBound)
1292 *toget = bsrt->hits;
1293 if ((comp.u.simple = req->smallSetElementSetNames))
1296 else if (bsrt->hits < *req->largeSetLowerBound)
1298 *toget = *req->mediumSetPresentNumber;
1299 if (*toget > bsrt->hits)
1300 *toget = bsrt->hits;
1301 if ((comp.u.simple = req->mediumSetElementSetNames))
1307 if (*toget && !resp->records)
1312 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1313 prefformat->oclass != CLASS_RECSYN)
1316 form = prefformat->value;
1317 resp->records = pack_records(assoc, req->resultSetName, 1,
1318 toget, compp, next, presst, form);
1321 resp->numberOfRecordsReturned = toget;
1322 resp->nextResultSetPosition = next;
1323 resp->searchStatus = sr;
1324 resp->resultSetStatus = 0;
1325 resp->presentStatus = presst;
1329 if (*resp->resultCount)
1331 resp->numberOfRecordsReturned = nulint;
1332 resp->nextResultSetPosition = next;
1333 resp->searchStatus = sr;
1334 resp->resultSetStatus = 0;
1335 resp->presentStatus = 0;
1342 * Maybe we got a little over-friendly when we designed bend_fetch to
1343 * get only one record at a time. Some backends can optimise multiple-record
1344 * fetches, and at any rate, there is some overhead involved in
1345 * all that selecting and hopping around. Problem is, of course, that the
1346 * frontend can't know ahead of time how many records it'll need to
1347 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1348 * is downright lousy as a bulk data transfer protocol.
1350 * To start with, we'll do the fetching of records from the backend
1351 * in one operation: To save some trips in and out of the event-handler,
1352 * and to simplify the interface to pack_records. At any rate, asynch
1353 * operation is more fun in operations that have an unpredictable execution
1354 * speed - which is normally more true for search than for present.
1356 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1359 Z_PresentRequest *req = reqb->request->u.presentRequest;
1363 Z_PresentResponse *resp;
1368 logf(LOG_LOG, "Got PresentRequest.");
1370 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1371 prefformat->oclass != CLASS_RECSYN)
1374 form = prefformat->value;
1375 if (assoc->bend_present)
1377 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1378 bprr->setname = req->resultSetId;
1379 bprr->start = *req->resultSetStartPoint;
1380 bprr->number = *req->numberOfRecordsRequested;
1381 bprr->format = form;
1382 bprr->comp = req->recordComposition;
1383 bprr->stream = assoc->encode;
1384 bprr->request = reqb;
1385 bprr->association = assoc;
1387 bprr->errstring = NULL;
1388 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1393 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1394 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1395 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1396 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1397 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1400 *num = *req->numberOfRecordsRequested;
1402 apdu->which = Z_APDU_presentResponse;
1403 apdu->u.presentResponse = resp;
1404 resp->referenceId = req->referenceId;
1405 resp->otherInfo = 0;
1408 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1409 num, req->recordComposition, next, presst, form);
1412 resp->numberOfRecordsReturned = num;
1413 resp->presentStatus = presst;
1414 resp->nextResultSetPosition = next;
1420 * Scan was implemented rather in a hurry, and with support for only the basic
1421 * elements of the service in the backend API. Suggestions are welcome.
1423 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1425 Z_ScanRequest *req = reqb->request->u.scanRequest;
1426 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1427 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1428 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1429 int *numberOfEntriesReturned =
1430 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1431 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1432 Z_DiagRecs *diagrecs_p = NULL;
1434 bend_scanrequest srq;
1435 bend_scanresult *srs;
1438 logf(LOG_LOG, "Got ScanRequest");
1439 *scanStatus = Z_Scan_failure;
1440 *numberOfEntriesReturned = 0;
1442 apdu->which = Z_APDU_scanResponse;
1443 apdu->u.scanResponse = res;
1444 res->referenceId = req->referenceId;
1446 res->scanStatus = scanStatus;
1447 res->numberOfEntriesReturned = numberOfEntriesReturned;
1448 res->positionOfTerm = 0;
1449 res->entries = ents;
1451 ents->num_entries = 0;
1452 ents->entries = NULL;
1453 ents->num_nonsurrogateDiagnostics = 0;
1454 ents->nonsurrogateDiagnostics = NULL;
1456 ents->which = Z_ListEntries_entries;
1458 res->attributeSet = 0;
1461 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1462 attent->oclass != CLASS_ATTSET
1463 || attent->value != VAL_BIB1))
1464 diagrecs_p = diagrecs(assoc, 121, 0);
1465 else if (req->stepSize && *req->stepSize > 0)
1466 diagrecs_p = diagrecs(assoc, 205, 0);
1469 if (req->termListAndStartPoint->term->which == Z_Term_general)
1470 logf(LOG_DEBUG, " term: '%.*s'",
1471 req->termListAndStartPoint->term->u.general->len,
1472 req->termListAndStartPoint->term->u.general->buf);
1473 srq.num_bases = req->num_databaseNames;
1474 srq.basenames = req->databaseNames;
1475 srq.num_entries = *req->numberOfTermsRequested;
1476 srq.term = req->termListAndStartPoint;
1477 srq.stream = assoc->encode;
1478 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1479 attset->oclass != CLASS_RECSYN)
1480 srq.attributeset = VAL_NONE;
1482 srq.attributeset = attset->value;
1483 srq.term_position = req->preferredPositionInResponse ?
1484 *req->preferredPositionInResponse : 1;
1485 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1486 diagrecs_p = diagrecs(assoc, 2, 0);
1487 else if (srs->errcode)
1488 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1494 Z_Entries *list = (Z_Entries *)
1495 odr_malloc (assoc->encode, sizeof(*list));
1497 Z_Entry **tab = (Z_Entry **)
1498 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1500 if (srs->status == BEND_SCAN_PARTIAL)
1501 *scanStatus = Z_Scan_partial_5;
1503 *scanStatus = Z_Scan_success;
1505 ents->entries = tab;
1506 ents->num_entries = srs->num_entries;
1507 res->numberOfEntriesReturned = &ents->num_entries;
1509 ents->u.entries = list;
1510 list->entries = tab;
1511 list->num_entries = srs->num_entries;
1512 res->numberOfEntriesReturned = &list->num_entries;
1514 res->positionOfTerm = &srs->term_position;
1515 for (i = 0; i < srs->num_entries; i++)
1521 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1522 if (srs->entries[i].occurrences >= 0)
1524 e->which = Z_Entry_termInfo;
1525 e->u.termInfo = t = (Z_TermInfo *)
1526 odr_malloc(assoc->encode, sizeof(*t));
1527 t->suggestedAttributes = 0;
1529 t->alternativeTerm = 0;
1530 t->byAttributes = 0;
1531 t->otherTermInfo = 0;
1532 t->globalOccurrences = &srs->entries[i].occurrences;
1533 t->term = (Z_Term *)
1534 odr_malloc(assoc->encode, sizeof(*t->term));
1535 t->term->which = Z_Term_general;
1536 t->term->u.general = o =
1537 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1538 o->buf = (unsigned char *)
1539 odr_malloc(assoc->encode, o->len = o->size =
1540 strlen(srs->entries[i].term));
1541 memcpy(o->buf, srs->entries[i].term, o->len);
1542 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1543 srs->entries[i].term, srs->entries[i].occurrences);
1547 Z_Records *zrecords = diagrec (assoc,
1548 srs->entries[i].errcode,
1549 srs->entries[i].errstring);
1550 logf(LOG_DEBUG, " term sd code=%d addinfo=%s",
1551 srs->entries[i].errcode,
1552 (srs->entries[i].errstring?srs->entries[i].errstring :
1554 assert (zrecords->which == Z_Records_NSD);
1555 e->which = Z_Entry_surrogateDiagnostic;
1556 e->u.surrogateDiagnostic =
1557 zrecords->u.nonSurrogateDiagnostic;
1565 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1566 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1568 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1569 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1575 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1578 Z_SortRequest *req = reqb->request->u.sortRequest;
1579 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1580 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1582 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1584 logf(LOG_LOG, "Got SortRequest.");
1587 bsrr->num_input_setnames = req->num_inputResultSetNames;
1588 bsrr->input_setnames = req->inputResultSetNames;
1590 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1591 bsrr->input_setnames = req->inputResultSetNames->strings;
1593 bsrr->output_setname = req->sortedResultSetName;
1594 bsrr->sort_sequence = req->sortSequence;
1595 bsrr->stream = assoc->encode;
1597 bsrr->sort_status = Z_SortStatus_failure;
1599 bsrr->errstring = 0;
1601 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1603 res->referenceId = req->referenceId;
1604 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1605 *res->sortStatus = bsrr->sort_status;
1606 res->resultSetStatus = 0;
1609 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1611 res->diagnostics = dr->diagRecs;
1612 res->num_diagnostics = dr->num_diagRecs;
1614 res->diagnostics = dr;
1620 res->num_diagnostics = 0;
1622 res->diagnostics = 0;
1626 apdu->which = Z_APDU_sortResponse;
1627 apdu->u.sortResponse = res;
1631 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1634 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1635 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1636 odr_malloc (assoc->encode, sizeof(*res));
1637 bend_delete_rr *bdrr = (bend_delete_rr *)
1638 odr_malloc (assoc->encode, sizeof(*bdrr));
1639 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1641 logf(LOG_LOG, "Got DeleteRequest.");
1643 bdrr->num_setnames = req->num_resultSetList;
1644 bdrr->setnames = req->resultSetList;
1645 bdrr->stream = assoc->encode;
1646 bdrr->function = *req->deleteFunction;
1648 ((int (*)(void *, bend_delete_rr *))
1649 (*assoc->bend_delete))(assoc->backend, bdrr);
1651 res->referenceId = req->referenceId;
1653 res->deleteOperationStatus = (int *)
1654 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1655 *res->deleteOperationStatus = bdrr->delete_status;
1657 res->deleteListStatuses = 0;
1658 res->numberNotDeleted = 0;
1659 res->bulkStatuses = 0;
1660 res->deleteMessage = 0;
1663 apdu->which = Z_APDU_deleteResultSetResponse;
1664 apdu->u.deleteResultSetResponse = res;
1668 static void process_close(association *assoc, request *reqb)
1670 Z_Close *req = reqb->request->u.close;
1671 static char *reasons[] =
1678 "securityViolation",
1685 logf(LOG_LOG, "Got Close, reason %s, message %s",
1686 reasons[*req->closeReason], req->diagnosticInformation ?
1687 req->diagnosticInformation : "NULL");
1688 if (assoc->version < 3) /* to make do_force respond with close */
1690 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1694 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1698 reqb->len_refid = refid->len;
1699 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1700 memcpy (reqb->refid, refid->buf, refid->len);
1704 reqb->len_refid = 0;
1709 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1711 process_response (a, req, res);
1714 bend_request bend_request_mk (bend_association a)
1716 request *nreq = request_get (&a->outgoing);
1717 nreq->request_mem = nmem_create ();
1721 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1726 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1727 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1728 id->len = id->size = req->len_refid;
1729 memcpy (id->buf, req->refid, req->len_refid);
1733 void bend_request_destroy (bend_request *req)
1735 nmem_destroy((*req)->request_mem);
1736 request_release(*req);
1740 int bend_backend_respond (bend_association a, bend_request req)
1742 return process_request (a, req);
1745 void bend_request_setdata(bend_request r, void *p)
1750 void *bend_request_getdata(bend_request r)
1752 return r->clientData;
1755 /* Chas: Added in from DALI */
1756 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1758 bend_esrequest_rr esrequest;
1760 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1761 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1763 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1765 logf(LOG_DEBUG,"inside Process esRequest");
1767 esrequest.esr = reqb->request->u.extendedServicesRequest;
1768 esrequest.stream = assoc->encode;
1769 esrequest.errcode = 0;
1770 esrequest.errstring = NULL;
1771 esrequest.request = reqb;
1772 esrequest.association = assoc;
1774 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1777 /* If the response is being delayed, return NULL */
1778 if (esrequest.request == NULL)
1781 resp->referenceId = req->referenceId;
1783 if ( esrequest.errcode == 0 )
1785 /* Backend service indicates request will be processed */
1786 logf(LOG_DEBUG,"Request will be processed...Good !");
1787 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1791 /* Backend indicates error, request will not be processed */
1792 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1793 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1795 /* Do something with the members of bend_extendedservice */
1797 logf(LOG_DEBUG,"Send the result apdu");
1802 /* Chas: End of addition from DALI */