2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.79 1998-08-19 16:10:08 adam
8 * Changed som member names of DeleteResultSetRequest/Response.
10 * Revision 1.78 1998/08/03 10:23:55 adam
11 * Fixed bug regarding Options for Sort.
13 * Revision 1.77 1998/07/20 12:38:42 adam
14 * Implemented delete result set service to server API.
16 * Revision 1.76 1998/05/27 16:57:07 adam
17 * Support for surrogate diagnostic records added for bend_fetch.
19 * Revision 1.75 1998/05/18 10:13:07 adam
20 * Fixed call to es_request handler - extra argument was passed.
22 * Revision 1.74 1998/03/31 15:13:20 adam
23 * Development towards compiled ASN.1.
25 * Revision 1.73 1998/03/31 11:07:45 adam
26 * Furhter work on UNIverse resource report.
27 * Added Extended Services handling in frontend server.
29 * Revision 1.72 1998/02/11 11:53:35 adam
30 * Changed code so that it compiles as C++.
32 * Revision 1.71 1998/02/10 11:03:57 adam
33 * Added support for extended handlers in backend server interface.
35 * Revision 1.70 1998/01/29 13:15:35 adam
36 * Implemented sort for the backend interface.
38 * Revision 1.69 1997/09/30 11:48:12 adam
39 * Fixed bug introduced by previous commit.
41 * Revision 1.68 1997/09/29 13:18:59 adam
42 * Added function, oid_ent_to_oid, to replace the function
43 * oid_getoidbyent, which is not thread safe.
45 * Revision 1.67 1997/09/17 12:10:40 adam
48 * Revision 1.66 1997/09/05 15:26:44 adam
49 * Added ODR encode in search and scen bend request structures.
50 * Fixed a few enums that caused trouble with C++.
52 * Revision 1.65 1997/09/01 08:53:01 adam
53 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
54 * moved a separate directory. MSV5.0 project server.dsp created.
55 * As an option, the server can now operate as an NT service.
57 * Revision 1.64 1997/04/30 08:52:11 quinn
60 * Revision 1.63 1996/10/11 11:57:26 quinn
63 * Revision 1.62 1996/07/06 19:58:35 quinn
64 * System headerfiles gathered in yconfig
66 * Revision 1.61 1996/06/10 08:56:16 quinn
69 * Revision 1.60 1996/05/30 11:03:10 quinn
70 * Fixed NextresultSetPosition bug fixed.
72 * Revision 1.59 1996/05/14 09:26:46 quinn
73 * Added attribute set to scan backend
75 * Revision 1.58 1996/02/20 12:53:04 quinn
78 * Revision 1.57 1996/01/02 08:57:47 quinn
79 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
81 * Revision 1.56 1995/12/14 11:09:57 quinn
84 * Revision 1.55 1995/11/08 17:41:37 quinn
87 * Revision 1.54 1995/11/08 15:11:29 quinn
88 * Log of close transmit.
90 * Revision 1.53 1995/11/01 13:54:58 quinn
93 * Revision 1.52 1995/11/01 12:19:13 quinn
94 * Second attempt to fix same bug.
96 * Revision 1.50 1995/10/25 16:58:32 quinn
99 * Revision 1.49 1995/10/16 13:51:53 quinn
100 * Changes to provide Especs to the backend.
102 * Revision 1.48 1995/10/06 08:51:20 quinn
103 * Added Write-buffer.
105 * Revision 1.47 1995/08/29 14:24:16 quinn
106 * Added second half of close-handshake
108 * Revision 1.46 1995/08/29 11:17:58 quinn
109 * Added code to receive close
111 * Revision 1.45 1995/08/21 09:11:00 quinn
112 * Smallish fixes to suppport new formats.
114 * Revision 1.44 1995/08/17 12:45:25 quinn
115 * Fixed minor problems with GRS-1. Added support in c&s.
117 * Revision 1.43 1995/08/15 12:00:31 quinn
120 * Revision 1.42 1995/08/15 11:16:50 quinn
122 * Revision 1.41 1995/08/02 10:23:06 quinn
125 * Revision 1.40 1995/07/31 14:34:26 quinn
126 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
128 * Revision 1.39 1995/06/27 13:21:00 quinn
131 * Revision 1.38 1995/06/19 12:39:11 quinn
132 * Fixed bug in timeout code. Added BER dumper.
134 * Revision 1.37 1995/06/16 13:16:14 quinn
135 * Fixed Defaultdiagformat.
137 * Revision 1.36 1995/06/16 10:31:36 quinn
138 * Added session timeout.
140 * Revision 1.35 1995/06/15 07:45:14 quinn
143 * Revision 1.34 1995/06/14 15:26:46 quinn
144 * *** empty log message ***
146 * Revision 1.33 1995/06/06 14:57:05 quinn
147 * Better diagnostics.
149 * Revision 1.32 1995/06/06 08:41:44 quinn
150 * Better diagnostics.
152 * Revision 1.31 1995/06/06 08:15:37 quinn
155 * Revision 1.30 1995/06/05 10:53:32 quinn
156 * Added a better SCAN.
158 * Revision 1.29 1995/06/01 11:25:03 quinn
161 * Revision 1.28 1995/06/01 11:21:01 quinn
162 * Attempting to fix a bug in pack-records. replaced break with continue
163 * for large records, according to standard.
165 * Revision 1.27 1995/05/29 08:12:06 quinn
168 * Revision 1.26 1995/05/18 13:02:12 quinn
171 * Revision 1.25 1995/05/17 08:42:26 quinn
172 * Transfer auth info to backend. Allow backend to reject init gracefully.
174 * Revision 1.24 1995/05/16 08:51:04 quinn
175 * License, documentation, and memory fixes
177 * Revision 1.23 1995/05/15 13:25:10 quinn
180 * Revision 1.22 1995/05/15 11:56:39 quinn
181 * Asynchronous facilities. Restructuring of seshigh code.
183 * Revision 1.21 1995/05/02 08:53:19 quinn
184 * Trying in vain to fix comm with ISODE
186 * Revision 1.20 1995/04/20 15:13:00 quinn
189 * Revision 1.19 1995/04/18 08:15:34 quinn
190 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
191 * neater. We'll make the same change for decoding one day.
193 * Revision 1.18 1995/04/17 11:28:25 quinn
196 * Revision 1.17 1995/04/10 10:23:36 quinn
197 * Some work to add scan and other things.
199 * Revision 1.16 1995/03/31 09:18:55 quinn
202 * Revision 1.15 1995/03/30 14:03:23 quinn
203 * Added RFC1006 as separate library
205 * Revision 1.14 1995/03/30 12:18:17 quinn
208 * Revision 1.13 1995/03/30 09:09:24 quinn
209 * Added state-handle and some support for asynchronous activities.
211 * Revision 1.12 1995/03/29 15:40:16 quinn
212 * Ongoing work. Statserv is now dynamic by default
214 * Revision 1.11 1995/03/28 09:16:21 quinn
215 * Added record packing to the search request
217 * Revision 1.10 1995/03/27 08:34:24 quinn
218 * Added dynamic server functionality.
219 * Released bindings to session.c (is now redundant)
221 * Revision 1.9 1995/03/22 15:01:26 quinn
222 * Adjusting record packing.
224 * Revision 1.8 1995/03/22 10:13:21 quinn
225 * Working on record packer
227 * Revision 1.7 1995/03/21 15:53:31 quinn
230 * Revision 1.6 1995/03/21 12:30:09 quinn
231 * Beginning to add support for record packing.
233 * Revision 1.5 1995/03/17 10:44:13 quinn
234 * Added catch of null-string in makediagrec
236 * Revision 1.4 1995/03/17 10:18:08 quinn
237 * Added memory management.
239 * Revision 1.3 1995/03/16 17:42:39 quinn
242 * Revision 1.2 1995/03/16 13:29:01 quinn
243 * Partitioned server.
245 * Revision 1.1 1995/03/15 16:02:10 quinn
246 * Modded session.c to seshigh.c
251 * Frontend server logic.
253 * This code receives incoming APDUs, and handles client requests by means
254 * of the backend API.
256 * Some of the code is getting quite involved, compared to simpler servers -
257 * primarily because it is asynchronous both in the communication with
258 * the user and the backend. We think the complexity will pay off in
259 * the form of greater flexibility when more asynchronous facilities
262 * Memory management has become somewhat involved. In the simple case, where
263 * only one PDU is pending at a time, it will simply reuse the same memory,
264 * once it has found its working size. When we enable multiple concurrent
265 * operations, perhaps even with multiple parallel calls to the backend, it
266 * will maintain a pool of buffers for encoding and decoding, trying to
267 * minimize memory allocation/deallocation during normal operation.
269 * TODOs include (and will be done in order of public interest):
271 * Support for EXPLAIN - provide simple meta-database system.
272 * Support for access control.
273 * Support for resource control.
274 * Support for extended services - primarily Item Order.
275 * Rest of Z39.50-1994
290 #include <comstack.h>
296 #include <statserv.h>
300 static int process_request(association *assoc, request *req);
301 void backend_response(IOCHAN i, int event);
302 static int process_response(association *assoc, request *req, Z_APDU *res);
303 static Z_APDU *process_initRequest(association *assoc, request *reqb);
304 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
306 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
307 bend_search_rr *bsrr, int *fd);
308 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
310 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
311 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
312 static void process_close(association *assoc, request *reqb);
313 void save_referenceId (request *reqb, Z_ReferenceId *refid);
314 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
317 static FILE *apduf = 0; /* for use in static mode */
318 static statserv_options_block *control_block = 0;
320 /* Chas: Added in from DALI */
321 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
322 /* Chas: End of addition from DALI */
325 * Create and initialize a new association-handle.
326 * channel : iochannel for the current line.
327 * link : communications channel.
328 * Returns: 0 or a new association handle.
330 association *create_association(IOCHAN channel, COMSTACK link)
335 control_block = statserv_getcontrol();
336 if (!(anew = (association *)xmalloc(sizeof(*anew))))
338 anew->client_chan = channel;
339 anew->client_link = link;
340 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
341 !(anew->encode = odr_createmem(ODR_ENCODE)))
343 if (*control_block->apdufile)
348 strcpy(filename, control_block->apdufile);
349 if (!(anew->print = odr_createmem(ODR_PRINT)))
351 if (*control_block->apdufile != '-')
353 strcpy(filename, control_block->apdufile);
354 if (!control_block->dynamic)
358 if (!(apduf = fopen(filename, "w")))
360 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
363 setvbuf(apduf, 0, _IONBF, 0);
369 sprintf(filename + strlen(filename), ".%d", getpid());
370 if (!(f = fopen(filename, "w")))
372 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
375 setvbuf(f, 0, _IONBF, 0);
377 odr_setprint(anew->print, f);
382 anew->input_buffer = 0;
383 anew->input_buffer_len = 0;
385 anew->state = ASSOC_NEW;
386 request_initq(&anew->incoming);
387 request_initq(&anew->outgoing);
388 anew->proto = cs_getproto(link);
393 * Free association and release resources.
395 void destroy_association(association *h)
397 odr_destroy(h->decode);
398 odr_destroy(h->encode);
400 odr_destroy(h->print);
402 xfree(h->input_buffer);
404 bend_close(h->backend);
405 while (request_deq(&h->incoming));
406 while (request_deq(&h->outgoing));
407 request_delq(&h->incoming);
408 request_delq(&h->outgoing);
412 static void do_close_req(association *a, int reason, char *message,
416 Z_Close *cls = zget_Close(a->encode);
418 /* Purge request queue */
419 while (request_deq(&a->incoming));
420 while (request_deq(&a->outgoing));
423 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
424 reason, message ? message : "none");
425 apdu.which = Z_APDU_close;
427 *cls->closeReason = reason;
428 cls->diagnosticInformation = message;
429 process_response(a, req, &apdu);
430 iochan_settimeout(a->client_chan, 60);
434 logf(LOG_DEBUG, "v2 client. No Close PDU");
435 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
437 a->state = ASSOC_DEAD;
440 static void do_close(association *a, int reason, char *message)
442 do_close_req (a, reason, message, request_get(&a->outgoing));
446 * This is where PDUs from the client are read and the further
447 * processing is initiated. Flow of control moves down through the
448 * various process_* functions below, until the encoded result comes back up
449 * to the output handler in here.
451 * h : the I/O channel that has an outstanding event.
452 * event : the current outstanding event.
454 void ir_session(IOCHAN h, int event)
457 association *assoc = (association *)iochan_getdata(h);
458 COMSTACK conn = assoc->client_link;
461 assert(h && conn && assoc);
462 if (event == EVENT_TIMEOUT)
464 if (assoc->state != ASSOC_UP)
466 logf(LOG_LOG, "Final timeout - closing connection.");
468 destroy_association(assoc);
473 logf(LOG_LOG, "Session idle too long. Sending close.");
474 do_close(assoc, Z_Close_lackOfActivity, 0);
478 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
480 if (event & EVENT_INPUT)
482 logf(LOG_DEBUG, "ir_session (input)");
483 assert(assoc && conn);
484 /* We aren't speaking to this fellow */
485 if (assoc->state == ASSOC_DEAD)
487 logf(LOG_LOG, "Closed connection after reject");
489 destroy_association(assoc);
493 if ((res = cs_get(conn, &assoc->input_buffer,
494 &assoc->input_buffer_len)) <= 0)
496 logf(LOG_LOG, "Connection closed by client");
498 destroy_association(assoc);
502 else if (res == 1) /* incomplete read - wait for more */
504 if (cs_more(conn)) /* more stuff - call us again later, please */
505 iochan_setevent(h, EVENT_INPUT);
507 /* we got a complete PDU. Let's decode it */
508 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
509 req = request_get(&assoc->incoming); /* get a new request structure */
510 odr_reset(assoc->decode);
511 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
512 if (!z_APDU(assoc->decode, &req->request, 0))
514 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
515 odr_errmsg(odr_geterror(assoc->decode)),
516 odr_offset(assoc->decode));
517 logf(LOG_LOG, "PDU dump:");
518 odr_dumpBER(log_file(), assoc->input_buffer, res);
519 do_close(assoc, Z_Close_protocolError, "Malformed package");
522 req->request_mem = odr_extract_mem(assoc->decode);
523 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
525 logf(LOG_WARN, "ODR print error: %s",
526 odr_errmsg(odr_geterror(assoc->print)));
527 odr_reset(assoc->print);
529 request_enq(&assoc->incoming, req);
532 /* can we do something yet? */
533 req = request_head(&assoc->incoming);
534 if (req->state == REQUEST_IDLE)
536 request_deq(&assoc->incoming);
537 if (process_request(assoc, req) < 0)
538 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
542 if (event & EVENT_OUTPUT)
544 request *req = request_head(&assoc->outgoing);
546 logf(LOG_DEBUG, "ir_session (output)");
547 req->state = REQUEST_PENDING;
548 switch (res = cs_put(conn, req->response, req->len_response))
551 logf(LOG_LOG, "Connection closed by client");
553 destroy_association(assoc);
556 case 0: /* all sent - release the request structure */
557 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
558 nmem_destroy(req->request_mem);
559 request_deq(&assoc->outgoing);
560 request_release(req);
561 if (!request_head(&assoc->outgoing))
562 iochan_clearflag(h, EVENT_OUTPUT);
564 /* value of 1 -- partial send -- is simply ignored */
567 if (event & EVENT_EXCEPT)
569 logf(LOG_DEBUG, "ir_session (exception)");
571 destroy_association(assoc);
577 * Initiate request processing.
579 static int process_request(association *assoc, request *req)
585 assert(req && req->state == REQUEST_IDLE);
586 switch (req->request->which)
588 case Z_APDU_initRequest:
589 res = process_initRequest(assoc, req); break;
590 case Z_APDU_searchRequest:
591 res = process_searchRequest(assoc, req, &fd); break;
592 case Z_APDU_presentRequest:
593 res = process_presentRequest(assoc, req, &fd); break;
594 case Z_APDU_scanRequest:
595 res = process_scanRequest(assoc, req, &fd); break;
596 case Z_APDU_extendedServicesRequest:
597 if (assoc->bend_esrequest)
598 res = process_ESRequest(assoc, req, &fd);
601 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
605 case Z_APDU_sortRequest:
606 if (assoc->bend_sort)
607 res = process_sortRequest(assoc, req, &fd);
610 logf(LOG_WARN, "Cannot handle SORT APDU");
615 process_close(assoc, req); return 0;
616 case Z_APDU_deleteResultSetRequest:
617 if (assoc->bend_delete)
618 res = process_deleteRequest(assoc, req, &fd);
621 logf (LOG_WARN, "Cannot handle Delete APDU");
626 logf(LOG_WARN, "Bad APDU received");
631 logf(LOG_DEBUG, " result immediately available");
632 retval = process_response(assoc, req, res);
636 logf(LOG_DEBUG, " result unavailble");
639 else /* no result yet - one will be provided later */
643 /* Set up an I/O handler for the fd supplied by the backend */
645 logf(LOG_DEBUG, " establishing handler for result");
646 req->state = REQUEST_PENDING;
647 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
649 iochan_setdata(chan, assoc);
656 * Handle message from the backend.
658 void backend_response(IOCHAN i, int event)
660 association *assoc = (association *)iochan_getdata(i);
661 request *req = request_head(&assoc->incoming);
665 logf(LOG_DEBUG, "backend_response");
666 assert(assoc && req && req->state != REQUEST_IDLE);
667 /* determine what it is we're waiting for */
668 switch (req->request->which)
670 case Z_APDU_searchRequest:
671 res = response_searchRequest(assoc, req, 0, &fd); break;
673 case Z_APDU_presentRequest:
674 res = response_presentRequest(assoc, req, 0, &fd); break;
675 case Z_APDU_scanRequest:
676 res = response_scanRequest(assoc, req, 0, &fd); break;
679 logf(LOG_WARN, "Serious programmer's lapse or bug");
682 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
684 logf(LOG_LOG, "Fatal error when talking to backend");
685 do_close(assoc, Z_Close_systemProblem, 0);
689 else if (!res) /* no result yet - try again later */
691 logf(LOG_DEBUG, " no result yet");
692 iochan_setfd(i, fd); /* in case fd has changed */
697 * Encode response, and transfer the request structure to the outgoing queue.
699 static int process_response(association *assoc, request *req, Z_APDU *res)
701 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
702 if (!z_APDU(assoc->encode, &res, 0))
704 logf(LOG_WARN, "ODR error when encoding response: %s",
705 odr_errmsg(odr_geterror(assoc->decode)));
706 odr_reset(assoc->encode);
709 req->response = odr_getbuf(assoc->encode, &req->len_response,
710 &req->size_response);
711 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
712 if (assoc->print && !z_APDU(assoc->print, &res, 0))
714 logf(LOG_WARN, "ODR print error: %s",
715 odr_errmsg(odr_geterror(assoc->print)));
716 odr_reset(assoc->print);
718 odr_reset(assoc->encode);
719 req->state = REQUEST_IDLE;
720 request_enq(&assoc->outgoing, req);
721 /* turn the work over to the ir_session handler */
722 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
723 /* Is there more work to be done? give that to the input handler too */
725 if (request_head(&assoc->incoming))
727 logf (LOG_DEBUG, "more work to be done");
728 iochan_setevent(assoc->client_chan, EVENT_WORK);
735 * Handle init request.
736 * At the moment, we don't check the options
737 * anywhere else in the code - we just try not to do anything that would
738 * break a naive client. We'll toss 'em into the association block when
739 * we need them there.
741 static Z_APDU *process_initRequest(association *assoc, request *reqb)
743 Z_InitRequest *req = reqb->request->u.initRequest;
744 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
745 Z_InitResponse *resp = apdu->u.initResponse;
746 bend_initrequest binitreq;
747 bend_initresult *binitres;
750 logf(LOG_LOG, "Got initRequest");
751 if (req->implementationId)
752 logf(LOG_LOG, "Id: %s", req->implementationId);
753 if (req->implementationName)
754 logf(LOG_LOG, "Name: %s", req->implementationName);
755 if (req->implementationVersion)
756 logf(LOG_LOG, "Version: %s", req->implementationVersion);
758 binitreq.stream = assoc->encode;
759 binitreq.configname = "default-config";
760 binitreq.auth = req->idAuthentication;
761 binitreq.bend_sort = NULL;
762 binitreq.bend_search = NULL;
763 binitreq.bend_present = NULL;
764 binitreq.bend_esrequest = NULL;
765 binitreq.bend_delete = NULL;
766 if (!(binitres = bend_init(&binitreq)))
768 logf(LOG_WARN, "Bad response from backend.");
772 assoc->backend = binitres->handle;
773 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
774 logf (LOG_DEBUG, "Sort handler installed");
775 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
776 logf (LOG_DEBUG, "Search handler installed");
777 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
778 logf (LOG_DEBUG, "Present handler installed");
779 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
780 logf (LOG_DEBUG, "ESRequest handler installed");
781 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
782 logf (LOG_DEBUG, "Delete handler installed");
784 resp->referenceId = req->referenceId;
786 /* let's tell the client what we can do */
787 if (ODR_MASK_GET(req->options, Z_Options_search))
789 ODR_MASK_SET(resp->options, Z_Options_search);
790 strcat(options, "srch");
792 if (ODR_MASK_GET(req->options, Z_Options_present))
794 ODR_MASK_SET(resp->options, Z_Options_present);
795 strcat(options, " prst");
797 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
799 ODR_MASK_SET(resp->options, Z_Options_delSet);
800 strcat(options, " del");
802 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
803 binitreq.bend_esrequest)
805 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
806 strcat (options, " extendedServices");
808 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
810 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
811 strcat(options, " namedresults");
813 if (ODR_MASK_GET(req->options, Z_Options_scan))
815 ODR_MASK_SET(resp->options, Z_Options_scan);
816 strcat(options, " scan");
818 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
820 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
821 strcat(options, " concurop");
823 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
825 ODR_MASK_SET(resp->options, Z_Options_sort);
826 strcat(options, " sort");
828 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
830 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
831 assoc->version = 2; /* 1 & 2 are equivalent */
833 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
835 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
838 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
840 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
843 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
844 assoc->maximumRecordSize = *req->maximumRecordSize;
845 if (assoc->maximumRecordSize > control_block->maxrecordsize)
846 assoc->maximumRecordSize = control_block->maxrecordsize;
847 assoc->preferredMessageSize = *req->preferredMessageSize;
848 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
849 assoc->preferredMessageSize = assoc->maximumRecordSize;
850 resp->preferredMessageSize = &assoc->preferredMessageSize;
851 resp->maximumRecordSize = &assoc->maximumRecordSize;
852 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
853 if (binitres->errcode)
855 logf(LOG_LOG, "Connection rejected by backend.");
857 assoc->state = ASSOC_DEAD;
860 assoc->state = ASSOC_UP;
865 * These functions should be merged.
868 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
871 dr->which = Z_DefaultDiagFormat_v2Addinfo;
872 dr->u.v2Addinfo = addinfo ? addinfo : "";
874 dr->which = Z_DiagForm_v2AddInfo;
875 dr->addinfo = addinfo ? addinfo : "";
880 * nonsurrogate diagnostic record.
882 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
885 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
887 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
888 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
889 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
891 bib1.proto = assoc->proto;
892 bib1.oclass = CLASS_DIAGSET;
893 bib1.value = VAL_BIB1;
895 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
898 rec->which = Z_Records_NSD;
900 rec->u.nonSurrogateDiagnostic = dr;
903 rec->u.nonSurrogateDiagnostic = drec;
904 drec->which = Z_DiagRec_defaultFormat;
905 drec->u.defaultFormat = dr;
907 rec->u.nonSurrogateDiagnostic = dr;
910 dr->diagnosticSetId = odr_oiddup (assoc->encode,
911 oid_ent_to_oid(&bib1, oid));
913 set_addinfo (dr, addinfo);
918 * surrogate diagnostic.
920 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
921 int error, char *addinfo)
924 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
925 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
927 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
928 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
930 bib1.proto = assoc->proto;
931 bib1.oclass = CLASS_DIAGSET;
932 bib1.value = VAL_BIB1;
934 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
936 rec->databaseName = dbname;
937 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
938 rec->u.surrogateDiagnostic = drec;
939 drec->which = Z_DiagRec_defaultFormat;
940 drec->u.defaultFormat = dr;
941 dr->diagnosticSetId = odr_oiddup (assoc->encode,
942 oid_ent_to_oid(&bib1, oid));
944 set_addinfo (dr, addinfo);
950 * multiple nonsurrogate diagnostics.
952 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
955 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
956 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
958 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
959 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
960 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
962 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
963 bib1.proto = assoc->proto;
964 bib1.oclass = CLASS_DIAGSET;
965 bib1.value = VAL_BIB1;
968 recs->num_diagRecs = 1;
969 recs->diagRecs = recp;
971 drec->which = Z_DiagRec_defaultFormat;
972 drec->u.defaultFormat = rec;
974 rec->diagnosticSetId = odr_oiddup (assoc->encode,
975 oid_ent_to_oid(&bib1, oid));
976 rec->condition = err;
979 rec->which = Z_DefaultDiagFormat_v2Addinfo;
980 rec->u.v2Addinfo = addinfo ? addinfo : "";
982 rec->which = Z_DiagForm_v2AddInfo;
983 rec->addinfo = addinfo ? addinfo : "";
988 static Z_Records *pack_records(association *a, char *setname, int start,
989 int *num, Z_RecordComposition *comp,
990 int *next, int *pres, oid_value format)
993 int recno, total_length = 0, toget = *num, dumped_records = 0;
994 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
995 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
996 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
999 records->which = Z_Records_DBOSD;
1000 records->u.databaseOrSurDiagnostics = reclist;
1001 reclist->num_records = 0;
1002 reclist->records = list;
1003 *pres = Z_PRES_SUCCESS;
1007 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
1008 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1009 a->maximumRecordSize);
1010 for (recno = start; reclist->num_records < toget; recno++)
1012 bend_fetchrequest freq;
1013 bend_fetchresult *fres;
1014 Z_NamePlusRecord *thisrec;
1015 Z_DatabaseRecord *thisext;
1016 int this_length = 0;
1019 * we get the number of bytes allocated on the stream before any
1020 * allocation done by the backend - this should give us a reasonable
1021 * idea of the total size of the data so far.
1023 total_length = odr_total(a->encode) - dumped_records;
1024 freq.setname = setname;
1025 freq.number = recno;
1027 freq.format = format;
1028 freq.stream = a->encode;
1029 freq.surrogate_flag = 0;
1030 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1032 *pres = Z_PRES_FAILURE;
1033 return diagrec(a, 2, "Backend interface problem");
1035 /* backend should be able to signal whether error is system-wide
1036 or only pertaining to current record */
1039 if (!freq.surrogate_flag)
1041 *pres = Z_PRES_FAILURE;
1042 return diagrec(a, fres->errcode, fres->errstring);
1044 reclist->records[reclist->num_records] =
1045 surrogatediagrec(a, fres->basename, fres->errcode,
1047 reclist->num_records++;
1048 *next = fres->last_in_set ? 0 : recno + 1;
1052 this_length = fres->len;
1054 this_length = odr_total(a->encode) - total_length;
1055 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1056 this_length, total_length);
1057 if (this_length + total_length > a->preferredMessageSize)
1059 /* record is small enough, really */
1060 if (this_length <= a->preferredMessageSize)
1062 logf(LOG_DEBUG, " Dropped last normal-sized record");
1063 *pres = Z_PRES_PARTIAL_2;
1066 /* record can only be fetched by itself */
1067 if (this_length < a->maximumRecordSize)
1069 logf(LOG_DEBUG, " Record > prefmsgsz");
1072 logf(LOG_DEBUG, " Dropped it");
1073 reclist->records[reclist->num_records] =
1074 surrogatediagrec(a, fres->basename, 16, 0);
1075 reclist->num_records++;
1076 *next = fres->last_in_set ? 0 : recno + 1;
1077 dumped_records += this_length;
1081 else /* too big entirely */
1083 logf(LOG_DEBUG, "Record > maxrcdsz");
1084 reclist->records[reclist->num_records] =
1085 surrogatediagrec(a, fres->basename, 17, 0);
1086 reclist->num_records++;
1087 *next = fres->last_in_set ? 0 : recno + 1;
1088 dumped_records += this_length;
1093 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1095 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1096 strlen(fres->basename) + 1)))
1098 strcpy(thisrec->databaseName, fres->basename);
1099 thisrec->which = Z_NamePlusRecord_databaseRecord;
1100 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1101 sizeof(Z_DatabaseRecord))))
1103 recform.proto = a->proto;
1104 recform.oclass = CLASS_RECSYN;
1105 recform.value = fres->format;
1106 thisext->direct_reference = odr_oiddup(a->encode,
1107 oid_ent_to_oid(&recform, oid));
1108 thisext->indirect_reference = 0;
1109 thisext->descriptor = 0;
1110 if (fres->len < 0) /* Structured data */
1112 switch (fres->format)
1114 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1115 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1116 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1118 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1119 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1122 logf(LOG_FATAL, "Unknown structured format from backend.");
1127 * We cheat on the pointers here. Obviously, the record field
1128 * of the backend-fetch structure should have been a union for
1129 * correctness, but we're stuck with this for backwards
1132 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1134 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1137 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1139 memcpy(sutrs, fres->record, fres->len);
1140 sutrs[fres->len] = '\0';
1142 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1144 thisext->which = Z_External_sutrs;
1145 thisext->u.sutrs = sutrs;
1146 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1147 sutrs->len = sutrs->size = fres->len;
1148 memcpy(sutrs->buf, fres->record, fres->len);
1151 else /* octet-aligned record. */
1153 thisext->which = Z_External_octet;
1154 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1157 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1160 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1161 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1164 reclist->records[reclist->num_records] = thisrec;
1165 reclist->num_records++;
1166 *next = fres->last_in_set ? 0 : recno + 1;
1168 *num = reclist->num_records;
1172 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1175 Z_SearchRequest *req = reqb->request->u.searchRequest;
1176 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1178 logf(LOG_LOG, "Got SearchRequest.");
1179 save_referenceId (reqb, req->referenceId);
1180 /* store ref id in request */
1182 bsrr->request = reqb;
1183 bsrr->association = assoc;
1184 if (assoc->bend_search)
1186 bsrr->setname = req->resultSetName;
1187 bsrr->replace_set = *req->replaceIndicator;
1188 bsrr->num_bases = req->num_databaseNames;
1189 bsrr->basenames = req->databaseNames;
1190 bsrr->query = req->query;
1191 bsrr->stream = assoc->encode;
1194 bsrr->errstring = NULL;
1195 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1201 bend_searchrequest bsrq;
1202 bend_searchresult *bsrt;
1204 bsrq.setname = req->resultSetName;
1205 bsrq.replace_set = *req->replaceIndicator;
1206 bsrq.num_bases = req->num_databaseNames;
1207 bsrq.basenames = req->databaseNames;
1208 bsrq.query = req->query;
1209 bsrq.stream = assoc->encode;
1210 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1212 bsrr->hits = bsrt->hits;
1213 bsrr->errcode = bsrt->errcode;
1214 bsrr->errstring = bsrt->errstring;
1216 return response_searchRequest(assoc, reqb, bsrr, fd);
1219 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1222 * Prepare a searchresponse based on the backend results. We probably want
1223 * to look at making the fetching of records nonblocking as well, but
1224 * so far, we'll keep things simple.
1225 * If bsrt is null, that means we're called in response to a communications
1226 * event, and we'll have to get the response for ourselves.
1228 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1229 bend_search_rr *bsrt, int *fd)
1231 Z_SearchRequest *req = reqb->request->u.searchRequest;
1232 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1233 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1234 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1235 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1236 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1237 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1244 apdu->which = Z_APDU_searchResponse;
1245 apdu->u.searchResponse = resp;
1246 resp->referenceId = req->referenceId;
1247 resp->additionalSearchInfo = 0;
1248 resp->otherInfo = 0;
1250 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1252 logf(LOG_FATAL, "Bad result from backend");
1255 else if (bsrt->errcode)
1257 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1258 resp->resultCount = nulint;
1259 resp->numberOfRecordsReturned = nulint;
1260 resp->nextResultSetPosition = nulint;
1261 resp->searchStatus = nulint;
1262 resp->resultSetStatus = none;
1263 resp->presentStatus = 0;
1267 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1268 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1269 Z_RecordComposition comp, *compp = 0;
1274 resp->resultCount = &bsrt->hits;
1276 comp.which = Z_RecordComp_simple;
1277 /* how many records does the user agent want, then? */
1278 if (bsrt->hits <= *req->smallSetUpperBound)
1280 *toget = bsrt->hits;
1281 if ((comp.u.simple = req->smallSetElementSetNames))
1284 else if (bsrt->hits < *req->largeSetLowerBound)
1286 *toget = *req->mediumSetPresentNumber;
1287 if (*toget > bsrt->hits)
1288 *toget = bsrt->hits;
1289 if ((comp.u.simple = req->mediumSetElementSetNames))
1295 if (*toget && !resp->records)
1300 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1301 prefformat->oclass != CLASS_RECSYN)
1304 form = prefformat->value;
1305 resp->records = pack_records(assoc, req->resultSetName, 1,
1306 toget, compp, next, presst, form);
1309 resp->numberOfRecordsReturned = toget;
1310 resp->nextResultSetPosition = next;
1311 resp->searchStatus = sr;
1312 resp->resultSetStatus = 0;
1313 resp->presentStatus = presst;
1317 if (*resp->resultCount)
1319 resp->numberOfRecordsReturned = nulint;
1320 resp->nextResultSetPosition = next;
1321 resp->searchStatus = sr;
1322 resp->resultSetStatus = 0;
1323 resp->presentStatus = 0;
1330 * Maybe we got a little over-friendly when we designed bend_fetch to
1331 * get only one record at a time. Some backends can optimise multiple-record
1332 * fetches, and at any rate, there is some overhead involved in
1333 * all that selecting and hopping around. Problem is, of course, that the
1334 * frontend can't know ahead of time how many records it'll need to
1335 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1336 * is downright lousy as a bulk data transfer protocol.
1338 * To start with, we'll do the fetching of records from the backend
1339 * in one operation: To save some trips in and out of the event-handler,
1340 * and to simplify the interface to pack_records. At any rate, asynch
1341 * operation is more fun in operations that have an unpredictable execution
1342 * speed - which is normally more true for search than for present.
1344 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1347 Z_PresentRequest *req = reqb->request->u.presentRequest;
1351 Z_PresentResponse *resp;
1356 logf(LOG_LOG, "Got PresentRequest.");
1358 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1359 prefformat->oclass != CLASS_RECSYN)
1362 form = prefformat->value;
1363 if (assoc->bend_present)
1365 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1366 bprr->setname = req->resultSetId;
1367 bprr->start = *req->resultSetStartPoint;
1368 bprr->number = *req->numberOfRecordsRequested;
1369 bprr->format = form;
1370 bprr->comp = req->recordComposition;
1371 bprr->stream = assoc->encode;
1372 bprr->request = reqb;
1373 bprr->association = assoc;
1375 bprr->errstring = NULL;
1376 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1381 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1382 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1383 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1384 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1385 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1388 *num = *req->numberOfRecordsRequested;
1390 apdu->which = Z_APDU_presentResponse;
1391 apdu->u.presentResponse = resp;
1392 resp->referenceId = req->referenceId;
1393 resp->otherInfo = 0;
1396 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1397 num, req->recordComposition, next, presst, form);
1400 resp->numberOfRecordsReturned = num;
1401 resp->presentStatus = presst;
1402 resp->nextResultSetPosition = next;
1408 * Scan was implemented rather in a hurry, and with support for only the basic
1409 * elements of the service in the backend API. Suggestions are welcome.
1411 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1413 Z_ScanRequest *req = reqb->request->u.scanRequest;
1414 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1415 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1416 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1417 int *numberOfEntriesReturned =
1418 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1419 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1420 Z_DiagRecs *diagrecs_p = NULL;
1422 bend_scanrequest srq;
1423 bend_scanresult *srs;
1426 logf(LOG_LOG, "Got ScanRequest");
1427 *scanStatus = Z_Scan_failure;
1428 *numberOfEntriesReturned = 0;
1430 apdu->which = Z_APDU_scanResponse;
1431 apdu->u.scanResponse = res;
1432 res->referenceId = req->referenceId;
1434 res->scanStatus = scanStatus;
1435 res->numberOfEntriesReturned = numberOfEntriesReturned;
1436 res->positionOfTerm = 0;
1437 res->entries = ents;
1439 ents->num_entries = 0;
1440 ents->entries = NULL;
1441 ents->num_nonsurrogateDiagnostics = 0;
1442 ents->nonsurrogateDiagnostics = NULL;
1444 ents->which = Z_ListEntries_entries;
1446 res->attributeSet = 0;
1449 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1450 attent->oclass != CLASS_ATTSET
1451 || attent->value != VAL_BIB1))
1452 diagrecs_p = diagrecs(assoc, 121, 0);
1453 else if (req->stepSize && *req->stepSize > 0)
1454 diagrecs_p = diagrecs(assoc, 205, 0);
1457 if (req->termListAndStartPoint->term->which == Z_Term_general)
1458 logf(LOG_DEBUG, " term: '%.*s'",
1459 req->termListAndStartPoint->term->u.general->len,
1460 req->termListAndStartPoint->term->u.general->buf);
1461 srq.num_bases = req->num_databaseNames;
1462 srq.basenames = req->databaseNames;
1463 srq.num_entries = *req->numberOfTermsRequested;
1464 srq.term = req->termListAndStartPoint;
1465 srq.stream = assoc->encode;
1466 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1467 attset->oclass != CLASS_RECSYN)
1468 srq.attributeset = VAL_NONE;
1470 srq.attributeset = attset->value;
1471 srq.term_position = req->preferredPositionInResponse ?
1472 *req->preferredPositionInResponse : 1;
1473 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1474 diagrecs_p = diagrecs(assoc, 2, 0);
1475 else if (srs->errcode)
1476 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1482 Z_Entries *list = (Z_Entries *)
1483 odr_malloc (assoc->encode, sizeof(*list));
1485 Z_Entry **tab = (Z_Entry **)
1486 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1488 if (srs->status == BEND_SCAN_PARTIAL)
1489 *scanStatus = Z_Scan_partial_5;
1491 *scanStatus = Z_Scan_success;
1493 ents->entries = tab;
1494 ents->num_entries = srs->num_entries;
1495 res->numberOfEntriesReturned = &ents->num_entries;
1497 ents->u.entries = list;
1498 list->entries = tab;
1499 list->num_entries = srs->num_entries;
1500 res->numberOfEntriesReturned = &list->num_entries;
1502 res->positionOfTerm = &srs->term_position;
1503 for (i = 0; i < srs->num_entries; i++)
1509 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1510 e->which = Z_Entry_termInfo;
1511 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1512 t->suggestedAttributes = 0;
1514 t->alternativeTerm = 0;
1515 t->byAttributes = 0;
1516 t->otherTermInfo = 0;
1517 t->globalOccurrences = &srs->entries[i].occurrences;
1518 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1519 t->term->which = Z_Term_general;
1520 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1522 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1523 strlen(srs->entries[i].term));
1524 memcpy(o->buf, srs->entries[i].term, o->len);
1525 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1526 srs->entries[i].term, srs->entries[i].occurrences);
1533 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1534 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1536 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1537 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1543 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1546 Z_SortRequest *req = reqb->request->u.sortRequest;
1547 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1548 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1550 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1552 logf(LOG_LOG, "Got SortRequest.");
1555 bsrr->num_input_setnames = req->num_inputResultSetNames;
1556 bsrr->input_setnames = req->inputResultSetNames;
1558 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1559 bsrr->input_setnames = req->inputResultSetNames->strings;
1561 bsrr->output_setname = req->sortedResultSetName;
1562 bsrr->sort_sequence = req->sortSequence;
1563 bsrr->stream = assoc->encode;
1565 bsrr->sort_status = Z_SortStatus_failure;
1567 bsrr->errstring = 0;
1569 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1571 res->referenceId = req->referenceId;
1572 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1573 *res->sortStatus = bsrr->sort_status;
1574 res->resultSetStatus = 0;
1577 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1579 res->diagnostics = dr->diagRecs;
1580 res->num_diagnostics = dr->num_diagRecs;
1582 res->diagnostics = dr;
1588 res->num_diagnostics = 0;
1590 res->diagnostics = 0;
1594 apdu->which = Z_APDU_sortResponse;
1595 apdu->u.sortResponse = res;
1599 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1602 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1603 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1604 odr_malloc (assoc->encode, sizeof(*res));
1605 bend_delete_rr *bdrr = (bend_delete_rr *)
1606 odr_malloc (assoc->encode, sizeof(*bdrr));
1607 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1609 logf(LOG_LOG, "Got DeleteRequest.");
1611 bdrr->num_setnames = req->num_resultSetList;
1612 bdrr->setnames = req->resultSetList;
1613 bdrr->stream = assoc->encode;
1614 bdrr->function = *req->deleteFunction;
1616 ((int (*)(void *, bend_delete_rr *))
1617 (*assoc->bend_delete))(assoc->backend, bdrr);
1619 res->referenceId = req->referenceId;
1621 res->deleteOperationStatus = (int *)
1622 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1623 *res->deleteOperationStatus = bdrr->delete_status;
1625 res->deleteListStatuses = 0;
1626 res->numberNotDeleted = 0;
1627 res->bulkStatuses = 0;
1628 res->deleteMessage = 0;
1631 apdu->which = Z_APDU_deleteResultSetResponse;
1632 apdu->u.deleteResultSetResponse = res;
1636 static void process_close(association *assoc, request *reqb)
1638 Z_Close *req = reqb->request->u.close;
1639 static char *reasons[] =
1646 "securityViolation",
1653 logf(LOG_LOG, "Got Close, reason %s, message %s",
1654 reasons[*req->closeReason], req->diagnosticInformation ?
1655 req->diagnosticInformation : "NULL");
1656 if (assoc->version < 3) /* to make do_force respond with close */
1658 do_close_req(assoc, Z_Close_finished, "Association terminated by client",
1662 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1666 reqb->len_refid = refid->len;
1667 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1668 memcpy (reqb->refid, refid->buf, refid->len);
1672 reqb->len_refid = 0;
1677 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1679 process_response (a, req, res);
1682 bend_request bend_request_mk (bend_association a)
1684 request *nreq = request_get (&a->outgoing);
1685 nreq->request_mem = nmem_create ();
1689 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1694 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1695 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1696 id->len = id->size = req->len_refid;
1697 memcpy (id->buf, req->refid, req->len_refid);
1701 void bend_request_destroy (bend_request *req)
1703 nmem_destroy((*req)->request_mem);
1704 request_release(*req);
1708 int bend_backend_respond (bend_association a, bend_request req)
1710 return process_request (a, req);
1713 void bend_request_setdata(bend_request r, void *p)
1718 void *bend_request_getdata(bend_request r)
1720 return r->clientData;
1723 /* Chas: Added in from DALI */
1724 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1726 bend_esrequest_rr esrequest;
1728 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1729 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1731 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1733 logf(LOG_DEBUG,"inside Process esRequest");
1735 esrequest.esr = reqb->request->u.extendedServicesRequest;
1736 esrequest.stream = assoc->encode;
1737 esrequest.errcode = 0;
1738 esrequest.errstring = NULL;
1739 esrequest.request = reqb;
1740 esrequest.association = assoc;
1742 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))(assoc->backend,
1745 /* If the response is being delayed, return NULL */
1746 if (esrequest.request == NULL)
1749 resp->referenceId = req->referenceId;
1751 if ( esrequest.errcode == 0 )
1753 /* Backend service indicates request will be processed */
1754 logf(LOG_DEBUG,"Request will be processed...Good !");
1755 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1759 /* Backend indicates error, request will not be processed */
1760 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1761 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1763 /* Do something with the members of bend_extendedservice */
1765 logf(LOG_DEBUG,"Send the result apdu");
1770 /* Chas: End of addition from DALI */