2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.89 1999-05-26 15:24:26 adam
8 * Fixed minor bugs regarding DB Update (introduced by previous commit).
10 * Revision 1.88 1999/04/20 09:56:48 adam
11 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
12 * Modified all encoders/decoders to reflect this change.
14 * Revision 1.87 1999/03/31 11:18:25 adam
15 * Implemented odr_strdup. Added Reference ID to backend server API.
17 * Revision 1.86 1999/02/02 13:57:38 adam
18 * Uses preprocessor define WIN32 instead of WINDOWS to build code
19 * for Microsoft WIN32.
21 * Revision 1.85 1998/11/17 09:52:59 adam
22 * Fixed minor bug (introduced by previous commit).
24 * Revision 1.84 1998/11/16 16:02:32 adam
25 * Added loggin utilies, log_rpn_query and log_scan_term. These used
26 * to be part of Zebra.
28 * Revision 1.83 1998/11/03 10:09:36 adam
29 * Fixed bug regarding YC.
31 * Revision 1.82 1998/10/20 14:00:30 quinn
34 * Revision 1.81 1998/10/13 16:12:24 adam
35 * Added support for Surrogate Diagnostics for Scan Term entries.
37 * Revision 1.80 1998/09/02 12:41:53 adam
38 * Added decode stream in bend search structures.
40 * Revision 1.79 1998/08/19 16:10:08 adam
41 * Changed som member names of DeleteResultSetRequest/Response.
43 * Revision 1.78 1998/08/03 10:23:55 adam
44 * Fixed bug regarding Options for Sort.
46 * Revision 1.77 1998/07/20 12:38:42 adam
47 * Implemented delete result set service to server API.
49 * Revision 1.76 1998/05/27 16:57:07 adam
50 * Support for surrogate diagnostic records added for bend_fetch.
52 * Revision 1.75 1998/05/18 10:13:07 adam
53 * Fixed call to es_request handler - extra argument was passed.
55 * Revision 1.74 1998/03/31 15:13:20 adam
56 * Development towards compiled ASN.1.
58 * Revision 1.73 1998/03/31 11:07:45 adam
59 * Furhter work on UNIverse resource report.
60 * Added Extended Services handling in frontend server.
62 * Revision 1.72 1998/02/11 11:53:35 adam
63 * Changed code so that it compiles as C++.
65 * Revision 1.71 1998/02/10 11:03:57 adam
66 * Added support for extended handlers in backend server interface.
68 * Revision 1.70 1998/01/29 13:15:35 adam
69 * Implemented sort for the backend interface.
71 * Revision 1.69 1997/09/30 11:48:12 adam
72 * Fixed bug introduced by previous commit.
74 * Revision 1.68 1997/09/29 13:18:59 adam
75 * Added function, oid_ent_to_oid, to replace the function
76 * oid_getoidbyent, which is not thread safe.
78 * Revision 1.67 1997/09/17 12:10:40 adam
81 * Revision 1.66 1997/09/05 15:26:44 adam
82 * Added ODR encode in search and scen bend request structures.
83 * Fixed a few enums that caused trouble with C++.
85 * Revision 1.65 1997/09/01 08:53:01 adam
86 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
87 * moved a separate directory. MSV5.0 project server.dsp created.
88 * As an option, the server can now operate as an NT service.
90 * Revision 1.64 1997/04/30 08:52:11 quinn
93 * Revision 1.63 1996/10/11 11:57:26 quinn
96 * Revision 1.62 1996/07/06 19:58:35 quinn
97 * System headerfiles gathered in yconfig
99 * Revision 1.61 1996/06/10 08:56:16 quinn
102 * Revision 1.60 1996/05/30 11:03:10 quinn
103 * Fixed NextresultSetPosition bug fixed.
105 * Revision 1.59 1996/05/14 09:26:46 quinn
106 * Added attribute set to scan backend
108 * Revision 1.58 1996/02/20 12:53:04 quinn
111 * Revision 1.57 1996/01/02 08:57:47 quinn
112 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
114 * Revision 1.56 1995/12/14 11:09:57 quinn
117 * Revision 1.55 1995/11/08 17:41:37 quinn
120 * Revision 1.54 1995/11/08 15:11:29 quinn
121 * Log of close transmit.
123 * Revision 1.53 1995/11/01 13:54:58 quinn
126 * Revision 1.52 1995/11/01 12:19:13 quinn
127 * Second attempt to fix same bug.
129 * Revision 1.50 1995/10/25 16:58:32 quinn
132 * Revision 1.49 1995/10/16 13:51:53 quinn
133 * Changes to provide Especs to the backend.
135 * Revision 1.48 1995/10/06 08:51:20 quinn
136 * Added Write-buffer.
138 * Revision 1.47 1995/08/29 14:24:16 quinn
139 * Added second half of close-handshake
141 * Revision 1.46 1995/08/29 11:17:58 quinn
142 * Added code to receive close
144 * Revision 1.45 1995/08/21 09:11:00 quinn
145 * Smallish fixes to suppport new formats.
147 * Revision 1.44 1995/08/17 12:45:25 quinn
148 * Fixed minor problems with GRS-1. Added support in c&s.
150 * Revision 1.43 1995/08/15 12:00:31 quinn
153 * Revision 1.42 1995/08/15 11:16:50 quinn
155 * Revision 1.41 1995/08/02 10:23:06 quinn
158 * Revision 1.40 1995/07/31 14:34:26 quinn
159 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
161 * Revision 1.39 1995/06/27 13:21:00 quinn
164 * Revision 1.38 1995/06/19 12:39:11 quinn
165 * Fixed bug in timeout code. Added BER dumper.
167 * Revision 1.37 1995/06/16 13:16:14 quinn
168 * Fixed Defaultdiagformat.
170 * Revision 1.36 1995/06/16 10:31:36 quinn
171 * Added session timeout.
173 * Revision 1.35 1995/06/15 07:45:14 quinn
176 * Revision 1.34 1995/06/14 15:26:46 quinn
177 * *** empty log message ***
179 * Revision 1.33 1995/06/06 14:57:05 quinn
180 * Better diagnostics.
182 * Revision 1.32 1995/06/06 08:41:44 quinn
183 * Better diagnostics.
185 * Revision 1.31 1995/06/06 08:15:37 quinn
188 * Revision 1.30 1995/06/05 10:53:32 quinn
189 * Added a better SCAN.
191 * Revision 1.29 1995/06/01 11:25:03 quinn
194 * Revision 1.28 1995/06/01 11:21:01 quinn
195 * Attempting to fix a bug in pack-records. replaced break with continue
196 * for large records, according to standard.
198 * Revision 1.27 1995/05/29 08:12:06 quinn
201 * Revision 1.26 1995/05/18 13:02:12 quinn
204 * Revision 1.25 1995/05/17 08:42:26 quinn
205 * Transfer auth info to backend. Allow backend to reject init gracefully.
207 * Revision 1.24 1995/05/16 08:51:04 quinn
208 * License, documentation, and memory fixes
210 * Revision 1.23 1995/05/15 13:25:10 quinn
213 * Revision 1.22 1995/05/15 11:56:39 quinn
214 * Asynchronous facilities. Restructuring of seshigh code.
216 * Revision 1.21 1995/05/02 08:53:19 quinn
217 * Trying in vain to fix comm with ISODE
219 * Revision 1.20 1995/04/20 15:13:00 quinn
222 * Revision 1.19 1995/04/18 08:15:34 quinn
223 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
224 * neater. We'll make the same change for decoding one day.
226 * Revision 1.18 1995/04/17 11:28:25 quinn
229 * Revision 1.17 1995/04/10 10:23:36 quinn
230 * Some work to add scan and other things.
232 * Revision 1.16 1995/03/31 09:18:55 quinn
235 * Revision 1.15 1995/03/30 14:03:23 quinn
236 * Added RFC1006 as separate library
238 * Revision 1.14 1995/03/30 12:18:17 quinn
241 * Revision 1.13 1995/03/30 09:09:24 quinn
242 * Added state-handle and some support for asynchronous activities.
244 * Revision 1.12 1995/03/29 15:40:16 quinn
245 * Ongoing work. Statserv is now dynamic by default
247 * Revision 1.11 1995/03/28 09:16:21 quinn
248 * Added record packing to the search request
250 * Revision 1.10 1995/03/27 08:34:24 quinn
251 * Added dynamic server functionality.
252 * Released bindings to session.c (is now redundant)
254 * Revision 1.9 1995/03/22 15:01:26 quinn
255 * Adjusting record packing.
257 * Revision 1.8 1995/03/22 10:13:21 quinn
258 * Working on record packer
260 * Revision 1.7 1995/03/21 15:53:31 quinn
263 * Revision 1.6 1995/03/21 12:30:09 quinn
264 * Beginning to add support for record packing.
266 * Revision 1.5 1995/03/17 10:44:13 quinn
267 * Added catch of null-string in makediagrec
269 * Revision 1.4 1995/03/17 10:18:08 quinn
270 * Added memory management.
272 * Revision 1.3 1995/03/16 17:42:39 quinn
275 * Revision 1.2 1995/03/16 13:29:01 quinn
276 * Partitioned server.
278 * Revision 1.1 1995/03/15 16:02:10 quinn
279 * Modded session.c to seshigh.c
284 * Frontend server logic.
286 * This code receives incoming APDUs, and handles client requests by means
287 * of the backend API.
289 * Some of the code is getting quite involved, compared to simpler servers -
290 * primarily because it is asynchronous both in the communication with
291 * the user and the backend. We think the complexity will pay off in
292 * the form of greater flexibility when more asynchronous facilities
295 * Memory management has become somewhat involved. In the simple case, where
296 * only one PDU is pending at a time, it will simply reuse the same memory,
297 * once it has found its working size. When we enable multiple concurrent
298 * operations, perhaps even with multiple parallel calls to the backend, it
299 * will maintain a pool of buffers for encoding and decoding, trying to
300 * minimize memory allocation/deallocation during normal operation.
302 * TODOs include (and will be done in order of public interest):
304 * Support for EXPLAIN - provide simple meta-database system.
305 * Support for access control.
306 * Support for resource control.
307 * Support for extended services - primarily Item Order.
308 * Rest of Z39.50-1994
323 #include <comstack.h>
330 #include <statserv.h>
334 static int process_request(association *assoc, request *req);
335 void backend_response(IOCHAN i, int event);
336 static int process_response(association *assoc, request *req, Z_APDU *res);
337 static Z_APDU *process_initRequest(association *assoc, request *reqb);
338 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
340 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
341 bend_search_rr *bsrr, int *fd);
342 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
344 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
345 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
346 static void process_close(association *assoc, request *reqb);
347 void save_referenceId (request *reqb, Z_ReferenceId *refid);
348 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
351 static FILE *apduf = 0; /* for use in static mode */
352 static statserv_options_block *control_block = 0;
354 /* Chas: Added in from DALI */
355 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
356 /* Chas: End of addition from DALI */
359 * Create and initialize a new association-handle.
360 * channel : iochannel for the current line.
361 * link : communications channel.
362 * Returns: 0 or a new association handle.
364 association *create_association(IOCHAN channel, COMSTACK link)
369 control_block = statserv_getcontrol();
370 if (!(anew = (association *)xmalloc(sizeof(*anew))))
372 anew->client_chan = channel;
373 anew->client_link = link;
374 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
375 !(anew->encode = odr_createmem(ODR_ENCODE)))
377 if (*control_block->apdufile)
382 strcpy(filename, control_block->apdufile);
383 if (!(anew->print = odr_createmem(ODR_PRINT)))
385 if (*control_block->apdufile != '-')
387 strcpy(filename, control_block->apdufile);
388 if (!control_block->dynamic)
392 if (!(apduf = fopen(filename, "w")))
394 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
397 setvbuf(apduf, 0, _IONBF, 0);
403 sprintf(filename + strlen(filename), ".%d", getpid());
404 if (!(f = fopen(filename, "w")))
406 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
409 setvbuf(f, 0, _IONBF, 0);
411 odr_setprint(anew->print, f);
416 anew->input_buffer = 0;
417 anew->input_buffer_len = 0;
419 anew->state = ASSOC_NEW;
420 request_initq(&anew->incoming);
421 request_initq(&anew->outgoing);
422 anew->proto = cs_getproto(link);
427 * Free association and release resources.
429 void destroy_association(association *h)
431 odr_destroy(h->decode);
432 odr_destroy(h->encode);
434 odr_destroy(h->print);
436 xfree(h->input_buffer);
438 bend_close(h->backend);
439 while (request_deq(&h->incoming));
440 while (request_deq(&h->outgoing));
441 request_delq(&h->incoming);
442 request_delq(&h->outgoing);
446 static void do_close_req(association *a, int reason, char *message,
450 Z_Close *cls = zget_Close(a->encode);
452 /* Purge request queue */
453 while (request_deq(&a->incoming));
454 while (request_deq(&a->outgoing));
457 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
458 reason, message ? message : "none");
459 apdu.which = Z_APDU_close;
461 *cls->closeReason = reason;
462 cls->diagnosticInformation = message;
463 process_response(a, req, &apdu);
464 iochan_settimeout(a->client_chan, 60);
468 logf(LOG_DEBUG, "v2 client. No Close PDU");
469 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
471 a->state = ASSOC_DEAD;
474 static void do_close(association *a, int reason, char *message)
476 do_close_req (a, reason, message, request_get(&a->outgoing));
480 * This is where PDUs from the client are read and the further
481 * processing is initiated. Flow of control moves down through the
482 * various process_* functions below, until the encoded result comes back up
483 * to the output handler in here.
485 * h : the I/O channel that has an outstanding event.
486 * event : the current outstanding event.
488 void ir_session(IOCHAN h, int event)
491 association *assoc = (association *)iochan_getdata(h);
492 COMSTACK conn = assoc->client_link;
495 assert(h && conn && assoc);
496 if (event == EVENT_TIMEOUT)
498 if (assoc->state != ASSOC_UP)
500 logf(LOG_LOG, "Final timeout - closing connection.");
502 destroy_association(assoc);
507 logf(LOG_LOG, "Session idle too long. Sending close.");
508 do_close(assoc, Z_Close_lackOfActivity, 0);
512 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
514 if (event & EVENT_INPUT)
516 logf(LOG_DEBUG, "ir_session (input)");
517 assert(assoc && conn);
518 /* We aren't speaking to this fellow */
519 if (assoc->state == ASSOC_DEAD)
521 logf(LOG_LOG, "Closed connection after reject");
523 destroy_association(assoc);
527 if ((res = cs_get(conn, &assoc->input_buffer,
528 &assoc->input_buffer_len)) <= 0)
530 logf(LOG_LOG, "Connection closed by client");
532 destroy_association(assoc);
536 else if (res == 1) /* incomplete read - wait for more */
538 if (cs_more(conn)) /* more stuff - call us again later, please */
539 iochan_setevent(h, EVENT_INPUT);
541 /* we got a complete PDU. Let's decode it */
542 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
543 req = request_get(&assoc->incoming); /* get a new request structure */
544 odr_reset(assoc->decode);
545 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
546 if (!z_APDU(assoc->decode, &req->request, 0, 0))
548 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
549 odr_errmsg(odr_geterror(assoc->decode)),
550 odr_offset(assoc->decode));
551 logf(LOG_LOG, "PDU dump:");
552 odr_dumpBER(log_file(), assoc->input_buffer, res);
553 do_close(assoc, Z_Close_protocolError, "Malformed package");
556 req->request_mem = odr_extract_mem(assoc->decode);
557 if (assoc->print && !z_APDU(assoc->print, &req->request, 0, 0))
559 logf(LOG_WARN, "ODR print error: %s",
560 odr_errmsg(odr_geterror(assoc->print)));
561 odr_reset(assoc->print);
563 request_enq(&assoc->incoming, req);
566 /* can we do something yet? */
567 req = request_head(&assoc->incoming);
568 if (req->state == REQUEST_IDLE)
570 request_deq(&assoc->incoming);
571 if (process_request(assoc, req) < 0)
572 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
576 if (event & EVENT_OUTPUT)
578 request *req = request_head(&assoc->outgoing);
580 logf(LOG_DEBUG, "ir_session (output)");
581 req->state = REQUEST_PENDING;
582 switch (res = cs_put(conn, req->response, req->len_response))
585 logf(LOG_LOG, "Connection closed by client");
587 destroy_association(assoc);
590 case 0: /* all sent - release the request structure */
591 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
592 nmem_destroy(req->request_mem);
593 request_deq(&assoc->outgoing);
594 request_release(req);
595 if (!request_head(&assoc->outgoing))
596 iochan_clearflag(h, EVENT_OUTPUT);
598 /* value of 1 -- partial send -- is simply ignored */
601 if (event & EVENT_EXCEPT)
603 logf(LOG_DEBUG, "ir_session (exception)");
605 destroy_association(assoc);
611 * Initiate request processing.
613 static int process_request(association *assoc, request *req)
619 assert(req && req->state == REQUEST_IDLE);
620 switch (req->request->which)
622 case Z_APDU_initRequest:
623 res = process_initRequest(assoc, req); break;
624 case Z_APDU_searchRequest:
625 res = process_searchRequest(assoc, req, &fd); break;
626 case Z_APDU_presentRequest:
627 res = process_presentRequest(assoc, req, &fd); break;
628 case Z_APDU_scanRequest:
629 res = process_scanRequest(assoc, req, &fd); break;
630 case Z_APDU_extendedServicesRequest:
631 if (assoc->bend_esrequest)
632 res = process_ESRequest(assoc, req, &fd);
635 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
639 case Z_APDU_sortRequest:
640 if (assoc->bend_sort)
641 res = process_sortRequest(assoc, req, &fd);
644 logf(LOG_WARN, "Cannot handle SORT APDU");
649 process_close(assoc, req); return 0;
650 case Z_APDU_deleteResultSetRequest:
651 if (assoc->bend_delete)
652 res = process_deleteRequest(assoc, req, &fd);
655 logf (LOG_WARN, "Cannot handle Delete APDU");
660 logf(LOG_WARN, "Bad APDU received");
665 logf(LOG_DEBUG, " result immediately available");
666 retval = process_response(assoc, req, res);
670 logf(LOG_DEBUG, " result unavailble");
673 else /* no result yet - one will be provided later */
677 /* Set up an I/O handler for the fd supplied by the backend */
679 logf(LOG_DEBUG, " establishing handler for result");
680 req->state = REQUEST_PENDING;
681 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
683 iochan_setdata(chan, assoc);
690 * Handle message from the backend.
692 void backend_response(IOCHAN i, int event)
694 association *assoc = (association *)iochan_getdata(i);
695 request *req = request_head(&assoc->incoming);
699 logf(LOG_DEBUG, "backend_response");
700 assert(assoc && req && req->state != REQUEST_IDLE);
701 /* determine what it is we're waiting for */
702 switch (req->request->which)
704 case Z_APDU_searchRequest:
705 res = response_searchRequest(assoc, req, 0, &fd); break;
707 case Z_APDU_presentRequest:
708 res = response_presentRequest(assoc, req, 0, &fd); break;
709 case Z_APDU_scanRequest:
710 res = response_scanRequest(assoc, req, 0, &fd); break;
713 logf(LOG_WARN, "Serious programmer's lapse or bug");
716 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
718 logf(LOG_LOG, "Fatal error when talking to backend");
719 do_close(assoc, Z_Close_systemProblem, 0);
723 else if (!res) /* no result yet - try again later */
725 logf(LOG_DEBUG, " no result yet");
726 iochan_setfd(i, fd); /* in case fd has changed */
731 * Encode response, and transfer the request structure to the outgoing queue.
733 static int process_response(association *assoc, request *req, Z_APDU *res)
735 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
736 if (!z_APDU(assoc->encode, &res, 0, 0))
738 logf(LOG_WARN, "ODR error when encoding response: %s",
739 odr_errmsg(odr_geterror(assoc->decode)));
740 odr_reset(assoc->encode);
743 req->response = odr_getbuf(assoc->encode, &req->len_response,
744 &req->size_response);
745 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
746 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
748 logf(LOG_WARN, "ODR print error: %s",
749 odr_errmsg(odr_geterror(assoc->print)));
750 odr_reset(assoc->print);
752 odr_reset(assoc->encode);
753 req->state = REQUEST_IDLE;
754 request_enq(&assoc->outgoing, req);
755 /* turn the work over to the ir_session handler */
756 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
757 /* Is there more work to be done? give that to the input handler too */
759 if (request_head(&assoc->incoming))
761 logf (LOG_DEBUG, "more work to be done");
762 iochan_setevent(assoc->client_chan, EVENT_WORK);
769 * Handle init request.
770 * At the moment, we don't check the options
771 * anywhere else in the code - we just try not to do anything that would
772 * break a naive client. We'll toss 'em into the association block when
773 * we need them there.
775 static Z_APDU *process_initRequest(association *assoc, request *reqb)
777 Z_InitRequest *req = reqb->request->u.initRequest;
778 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
779 Z_InitResponse *resp = apdu->u.initResponse;
780 bend_initrequest binitreq;
781 bend_initresult *binitres;
784 logf(LOG_LOG, "Got initRequest");
785 if (req->implementationId)
786 logf(LOG_LOG, "Id: %s", req->implementationId);
787 if (req->implementationName)
788 logf(LOG_LOG, "Name: %s", req->implementationName);
789 if (req->implementationVersion)
790 logf(LOG_LOG, "Version: %s", req->implementationVersion);
792 binitreq.stream = assoc->encode;
793 binitreq.configname = "default-config";
794 binitreq.auth = req->idAuthentication;
795 binitreq.referenceId = req->referenceId;
796 binitreq.bend_sort = NULL;
797 binitreq.bend_search = NULL;
798 binitreq.bend_present = NULL;
799 binitreq.bend_esrequest = NULL;
800 binitreq.bend_delete = NULL;
801 if (!(binitres = bend_init(&binitreq)))
803 logf(LOG_WARN, "Bad response from backend.");
807 assoc->backend = binitres->handle;
808 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
809 logf (LOG_DEBUG, "Sort handler installed");
810 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
811 logf (LOG_DEBUG, "Search handler installed");
812 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
813 logf (LOG_DEBUG, "Present handler installed");
814 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
815 logf (LOG_DEBUG, "ESRequest handler installed");
816 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
817 logf (LOG_DEBUG, "Delete handler installed");
819 resp->referenceId = req->referenceId;
821 /* let's tell the client what we can do */
822 if (ODR_MASK_GET(req->options, Z_Options_search))
824 ODR_MASK_SET(resp->options, Z_Options_search);
825 strcat(options, "srch");
827 if (ODR_MASK_GET(req->options, Z_Options_present))
829 ODR_MASK_SET(resp->options, Z_Options_present);
830 strcat(options, " prst");
832 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
834 ODR_MASK_SET(resp->options, Z_Options_delSet);
835 strcat(options, " del");
837 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
838 binitreq.bend_esrequest)
840 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
841 strcat (options, " extendedServices");
843 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
845 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
846 strcat(options, " namedresults");
848 if (ODR_MASK_GET(req->options, Z_Options_scan))
850 ODR_MASK_SET(resp->options, Z_Options_scan);
851 strcat(options, " scan");
853 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
855 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
856 strcat(options, " concurop");
858 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
860 ODR_MASK_SET(resp->options, Z_Options_sort);
861 strcat(options, " sort");
863 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
865 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
866 assoc->version = 2; /* 1 & 2 are equivalent */
868 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
870 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
873 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
875 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
878 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
879 assoc->maximumRecordSize = *req->maximumRecordSize;
880 if (assoc->maximumRecordSize > control_block->maxrecordsize)
881 assoc->maximumRecordSize = control_block->maxrecordsize;
882 assoc->preferredMessageSize = *req->preferredMessageSize;
883 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
884 assoc->preferredMessageSize = assoc->maximumRecordSize;
885 resp->preferredMessageSize = &assoc->preferredMessageSize;
886 resp->maximumRecordSize = &assoc->maximumRecordSize;
887 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
888 if (binitres->errcode)
890 logf(LOG_LOG, "Connection rejected by backend.");
892 assoc->state = ASSOC_DEAD;
895 assoc->state = ASSOC_UP;
900 * These functions should be merged.
903 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
906 dr->which = Z_DefaultDiagFormat_v2Addinfo;
907 dr->u.v2Addinfo = addinfo ? addinfo : "";
909 dr->which = Z_DiagForm_v2AddInfo;
910 dr->addinfo = addinfo ? addinfo : "";
915 * nonsurrogate diagnostic record.
917 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
920 Z_Records *rec = (Z_Records *)
921 odr_malloc (assoc->encode, sizeof(*rec));
924 odr_malloc (assoc->encode, sizeof(*err));
925 Z_DiagRec *drec = (Z_DiagRec *)
926 odr_malloc (assoc->encode, sizeof(*drec));
927 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
928 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, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
937 rec->which = Z_Records_NSD;
939 rec->u.nonSurrogateDiagnostic = dr;
941 rec->u.nonSurrogateDiagnostic = drec;
942 drec->which = Z_DiagRec_defaultFormat;
943 drec->u.defaultFormat = dr;
945 dr->diagnosticSetId =
946 odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid));
948 set_addinfo (dr, addinfo);
953 * surrogate diagnostic.
955 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
956 int error, char *addinfo)
959 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
960 odr_malloc (assoc->encode, sizeof(*rec));
961 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
963 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
964 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
965 odr_malloc (assoc->encode, sizeof(*dr));
967 bib1.proto = assoc->proto;
968 bib1.oclass = CLASS_DIAGSET;
969 bib1.value = VAL_BIB1;
971 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
973 rec->databaseName = dbname;
974 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
975 rec->u.surrogateDiagnostic = drec;
976 drec->which = Z_DiagRec_defaultFormat;
977 drec->u.defaultFormat = dr;
978 dr->diagnosticSetId = odr_oiddup (assoc->encode,
979 oid_ent_to_oid(&bib1, oid));
981 set_addinfo (dr, addinfo);
987 * multiple nonsurrogate diagnostics.
989 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
992 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
993 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
995 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
996 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
997 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
999 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1000 bib1.proto = assoc->proto;
1001 bib1.oclass = CLASS_DIAGSET;
1002 bib1.value = VAL_BIB1;
1005 recs->num_diagRecs = 1;
1006 recs->diagRecs = recp;
1008 drec->which = Z_DiagRec_defaultFormat;
1009 drec->u.defaultFormat = rec;
1011 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1012 oid_ent_to_oid(&bib1, oid));
1013 rec->condition = err;
1016 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1017 rec->u.v2Addinfo = addinfo ? addinfo : "";
1019 rec->which = Z_DiagForm_v2AddInfo;
1020 rec->addinfo = addinfo ? addinfo : "";
1025 static Z_Records *pack_records(association *a, char *setname, int start,
1026 int *num, Z_RecordComposition *comp,
1027 int *next, int *pres, oid_value format,
1028 Z_ReferenceId *referenceId)
1031 int recno, total_length = 0, toget = *num, dumped_records = 0;
1032 Z_Records *records =
1033 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1034 Z_NamePlusRecordList *reclist =
1035 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1036 Z_NamePlusRecord **list =
1037 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1040 records->which = Z_Records_DBOSD;
1041 records->u.databaseOrSurDiagnostics = reclist;
1042 reclist->num_records = 0;
1043 reclist->records = list;
1044 *pres = Z_PRES_SUCCESS;
1048 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1049 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1050 a->maximumRecordSize);
1051 for (recno = start; reclist->num_records < toget; recno++)
1053 bend_fetchrequest freq;
1054 bend_fetchresult *fres;
1055 Z_NamePlusRecord *thisrec;
1056 Z_DatabaseRecord *thisext;
1057 int this_length = 0;
1060 * we get the number of bytes allocated on the stream before any
1061 * allocation done by the backend - this should give us a reasonable
1062 * idea of the total size of the data so far.
1064 total_length = odr_total(a->encode) - dumped_records;
1065 freq.setname = setname;
1066 freq.number = recno;
1068 freq.format = format;
1069 freq.stream = a->encode;
1070 freq.surrogate_flag = 0;
1071 freq.referenceId = referenceId;
1072 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1074 *pres = Z_PRES_FAILURE;
1075 return diagrec(a, 2, "Backend interface problem");
1077 /* backend should be able to signal whether error is system-wide
1078 or only pertaining to current record */
1081 if (!freq.surrogate_flag)
1083 *pres = Z_PRES_FAILURE;
1084 return diagrec(a, fres->errcode, fres->errstring);
1086 reclist->records[reclist->num_records] =
1087 surrogatediagrec(a, fres->basename, fres->errcode,
1089 reclist->num_records++;
1090 *next = fres->last_in_set ? 0 : recno + 1;
1094 this_length = fres->len;
1096 this_length = odr_total(a->encode) - total_length;
1097 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1098 this_length, total_length);
1099 if (this_length + total_length > a->preferredMessageSize)
1101 /* record is small enough, really */
1102 if (this_length <= a->preferredMessageSize)
1104 logf(LOG_DEBUG, " Dropped last normal-sized record");
1105 *pres = Z_PRES_PARTIAL_2;
1108 /* record can only be fetched by itself */
1109 if (this_length < a->maximumRecordSize)
1111 logf(LOG_DEBUG, " Record > prefmsgsz");
1114 logf(LOG_DEBUG, " Dropped it");
1115 reclist->records[reclist->num_records] =
1116 surrogatediagrec(a, fres->basename, 16, 0);
1117 reclist->num_records++;
1118 *next = fres->last_in_set ? 0 : recno + 1;
1119 dumped_records += this_length;
1123 else /* too big entirely */
1125 logf(LOG_DEBUG, "Record > maxrcdsz");
1126 reclist->records[reclist->num_records] =
1127 surrogatediagrec(a, fres->basename, 17, 0);
1128 reclist->num_records++;
1129 *next = fres->last_in_set ? 0 : recno + 1;
1130 dumped_records += this_length;
1135 if (!(thisrec = (Z_NamePlusRecord *)
1136 odr_malloc(a->encode, sizeof(*thisrec))))
1138 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1139 strlen(fres->basename) + 1)))
1141 strcpy(thisrec->databaseName, fres->basename);
1142 thisrec->which = Z_NamePlusRecord_databaseRecord;
1143 thisrec->u.databaseRecord = z_ext_record(a->encode, fres->format,
1144 fres->record, fres->len);
1145 if (!thisrec->u.databaseRecord)
1147 reclist->records[reclist->num_records] = thisrec;
1148 reclist->num_records++;
1149 *next = fres->last_in_set ? 0 : recno + 1;
1151 *num = reclist->num_records;
1155 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1158 Z_SearchRequest *req = reqb->request->u.searchRequest;
1159 bend_search_rr *bsrr =
1160 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1162 logf(LOG_LOG, "Got SearchRequest.");
1164 bsrr->request = reqb;
1165 bsrr->association = assoc;
1166 bsrr->referenceId = req->referenceId;
1167 save_referenceId (reqb, bsrr->referenceId);
1169 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1170 if (req->databaseNames)
1173 for (i = 0; i < req->num_databaseNames; i++)
1174 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1176 switch (req->query->which)
1178 case Z_Query_type_1: case Z_Query_type_101:
1179 log_rpn_query (req->query->u.type_1);
1181 if (assoc->bend_search)
1183 bsrr->setname = req->resultSetName;
1184 bsrr->replace_set = *req->replaceIndicator;
1185 bsrr->num_bases = req->num_databaseNames;
1186 bsrr->basenames = req->databaseNames;
1187 bsrr->query = req->query;
1188 bsrr->stream = assoc->encode;
1189 bsrr->decode = assoc->decode;
1192 bsrr->errstring = NULL;
1193 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1194 (assoc->backend, bsrr);
1200 bend_searchrequest bsrq;
1201 bend_searchresult *bsrt;
1203 bsrq.setname = req->resultSetName;
1204 bsrq.replace_set = *req->replaceIndicator;
1205 bsrq.num_bases = req->num_databaseNames;
1206 bsrq.basenames = req->databaseNames;
1207 bsrq.query = req->query;
1208 bsrq.referenceId = req->referenceId;
1209 bsrq.stream = assoc->encode;
1210 bsrq.decode = assoc->decode;
1211 if (!(bsrt = bend_search (assoc->backend, &bsrq, fd)))
1213 bsrr->hits = bsrt->hits;
1214 bsrr->errcode = bsrt->errcode;
1215 bsrr->errstring = bsrt->errstring;
1217 return response_searchRequest(assoc, reqb, bsrr, fd);
1220 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1223 * Prepare a searchresponse based on the backend results. We probably want
1224 * to look at making the fetching of records nonblocking as well, but
1225 * so far, we'll keep things simple.
1226 * If bsrt is null, that means we're called in response to a communications
1227 * event, and we'll have to get the response for ourselves.
1229 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1230 bend_search_rr *bsrt, int *fd)
1232 Z_SearchRequest *req = reqb->request->u.searchRequest;
1233 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1234 Z_SearchResponse *resp = (Z_SearchResponse *)
1235 odr_malloc (assoc->encode, sizeof(*resp));
1236 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1237 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1238 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1239 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1246 apdu->which = Z_APDU_searchResponse;
1247 apdu->u.searchResponse = resp;
1248 resp->referenceId = req->referenceId;
1249 resp->additionalSearchInfo = 0;
1250 resp->otherInfo = 0;
1252 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1254 logf(LOG_FATAL, "Bad result from backend");
1257 else if (bsrt->errcode)
1259 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1260 resp->resultCount = nulint;
1261 resp->numberOfRecordsReturned = nulint;
1262 resp->nextResultSetPosition = nulint;
1263 resp->searchStatus = nulint;
1264 resp->resultSetStatus = none;
1265 resp->presentStatus = 0;
1269 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1270 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1271 Z_RecordComposition comp, *compp = 0;
1276 resp->resultCount = &bsrt->hits;
1278 comp.which = Z_RecordComp_simple;
1279 /* how many records does the user agent want, then? */
1280 if (bsrt->hits <= *req->smallSetUpperBound)
1282 *toget = bsrt->hits;
1283 if ((comp.u.simple = req->smallSetElementSetNames))
1286 else if (bsrt->hits < *req->largeSetLowerBound)
1288 *toget = *req->mediumSetPresentNumber;
1289 if (*toget > bsrt->hits)
1290 *toget = bsrt->hits;
1291 if ((comp.u.simple = req->mediumSetElementSetNames))
1297 if (*toget && !resp->records)
1302 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1303 prefformat->oclass != CLASS_RECSYN)
1306 form = prefformat->value;
1307 resp->records = pack_records(assoc, req->resultSetName, 1,
1308 toget, compp, next, presst, form, req->referenceId);
1311 resp->numberOfRecordsReturned = toget;
1312 resp->nextResultSetPosition = next;
1313 resp->searchStatus = sr;
1314 resp->resultSetStatus = 0;
1315 resp->presentStatus = presst;
1319 if (*resp->resultCount)
1321 resp->numberOfRecordsReturned = nulint;
1322 resp->nextResultSetPosition = next;
1323 resp->searchStatus = sr;
1324 resp->resultSetStatus = 0;
1325 resp->presentStatus = 0;
1332 * Maybe we got a little over-friendly when we designed bend_fetch to
1333 * get only one record at a time. Some backends can optimise multiple-record
1334 * fetches, and at any rate, there is some overhead involved in
1335 * all that selecting and hopping around. Problem is, of course, that the
1336 * frontend can't know ahead of time how many records it'll need to
1337 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1338 * is downright lousy as a bulk data transfer protocol.
1340 * To start with, we'll do the fetching of records from the backend
1341 * in one operation: To save some trips in and out of the event-handler,
1342 * and to simplify the interface to pack_records. At any rate, asynch
1343 * operation is more fun in operations that have an unpredictable execution
1344 * speed - which is normally more true for search than for present.
1346 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1349 Z_PresentRequest *req = reqb->request->u.presentRequest;
1353 Z_PresentResponse *resp;
1358 logf(LOG_LOG, "Got PresentRequest.");
1360 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1361 prefformat->oclass != CLASS_RECSYN)
1364 form = prefformat->value;
1365 if (assoc->bend_present)
1367 bend_present_rr *bprr = (bend_present_rr *)
1368 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1369 bprr->setname = req->resultSetId;
1370 bprr->start = *req->resultSetStartPoint;
1371 bprr->number = *req->numberOfRecordsRequested;
1372 bprr->format = form;
1373 bprr->comp = req->recordComposition;
1374 bprr->referenceId = req->referenceId;
1375 bprr->stream = assoc->encode;
1376 bprr->request = reqb;
1377 bprr->association = assoc;
1379 bprr->errstring = NULL;
1380 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(
1381 assoc->backend, bprr);
1386 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1387 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1388 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1389 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1390 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1393 *num = *req->numberOfRecordsRequested;
1395 apdu->which = Z_APDU_presentResponse;
1396 apdu->u.presentResponse = resp;
1397 resp->referenceId = req->referenceId;
1398 resp->otherInfo = 0;
1401 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1402 num, req->recordComposition, next, presst, form,
1406 resp->numberOfRecordsReturned = num;
1407 resp->presentStatus = presst;
1408 resp->nextResultSetPosition = next;
1414 * Scan was implemented rather in a hurry, and with support for only the basic
1415 * elements of the service in the backend API. Suggestions are welcome.
1417 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1419 Z_ScanRequest *req = reqb->request->u.scanRequest;
1420 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1421 Z_ScanResponse *res = (Z_ScanResponse *)
1422 odr_malloc (assoc->encode, sizeof(*res));
1423 int *scanStatus = (int *)
1424 odr_malloc (assoc->encode, sizeof(*scanStatus));
1425 int *numberOfEntriesReturned = (int *)
1426 odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1427 Z_ListEntries *ents = (Z_ListEntries *)
1428 odr_malloc (assoc->encode, sizeof(*ents));
1429 Z_DiagRecs *diagrecs_p = NULL;
1431 bend_scanrequest srq;
1432 bend_scanresult *srs;
1435 logf(LOG_LOG, "Got ScanRequest");
1436 *scanStatus = Z_Scan_failure;
1437 *numberOfEntriesReturned = 0;
1439 apdu->which = Z_APDU_scanResponse;
1440 apdu->u.scanResponse = res;
1441 res->referenceId = req->referenceId;
1443 res->scanStatus = scanStatus;
1444 res->numberOfEntriesReturned = numberOfEntriesReturned;
1445 res->positionOfTerm = 0;
1446 res->entries = ents;
1447 ents->num_entries = 0;
1448 ents->entries = NULL;
1449 ents->num_nonsurrogateDiagnostics = 0;
1450 ents->nonsurrogateDiagnostics = NULL;
1451 res->attributeSet = 0;
1454 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1455 attent->oclass != CLASS_ATTSET
1456 || attent->value != VAL_BIB1))
1457 diagrecs_p = diagrecs(assoc, 121, 0);
1458 else if (req->stepSize && *req->stepSize > 0)
1459 diagrecs_p = diagrecs(assoc, 205, 0);
1462 if (req->databaseNames)
1465 for (i = 0; i < req->num_databaseNames; i++)
1466 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1468 srq.num_bases = req->num_databaseNames;
1469 srq.basenames = req->databaseNames;
1470 srq.num_entries = *req->numberOfTermsRequested;
1471 srq.term = req->termListAndStartPoint;
1472 srq.referenceId = req->referenceId;
1473 srq.stream = assoc->encode;
1474 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1475 attset->oclass != CLASS_RECSYN)
1476 srq.attributeset = VAL_NONE;
1478 srq.attributeset = attset->value;
1479 log_scan_term (req->termListAndStartPoint, attset->value);
1480 srq.term_position = req->preferredPositionInResponse ?
1481 *req->preferredPositionInResponse : 1;
1482 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1483 diagrecs_p = diagrecs(assoc, 2, 0);
1484 else if (srs->errcode)
1485 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1489 Z_Entry **tab = (Z_Entry **)
1490 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1492 if (srs->status == BEND_SCAN_PARTIAL)
1493 *scanStatus = Z_Scan_partial_5;
1495 *scanStatus = Z_Scan_success;
1496 ents->entries = tab;
1497 ents->num_entries = srs->num_entries;
1498 res->numberOfEntriesReturned = &ents->num_entries;
1499 res->positionOfTerm = &srs->term_position;
1500 for (i = 0; i < srs->num_entries; i++)
1506 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1507 if (srs->entries[i].occurrences >= 0)
1509 e->which = Z_Entry_termInfo;
1510 e->u.termInfo = t = (Z_TermInfo *)
1511 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 *)
1519 odr_malloc(assoc->encode, sizeof(*t->term));
1520 t->term->which = Z_Term_general;
1521 t->term->u.general = o =
1522 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1523 o->buf = (unsigned char *)
1524 odr_malloc(assoc->encode, o->len = o->size =
1525 strlen(srs->entries[i].term));
1526 memcpy(o->buf, srs->entries[i].term, o->len);
1527 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1528 srs->entries[i].term, srs->entries[i].occurrences);
1532 Z_DiagRecs *drecs = diagrecs (assoc,
1533 srs->entries[i].errcode,
1534 srs->entries[i].errstring);
1535 assert (drecs->num_diagRecs == 1);
1536 e->which = Z_Entry_surrogateDiagnostic;
1537 assert (drecs->diagRecs[0]);
1538 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1545 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1546 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1551 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1554 Z_SortRequest *req = reqb->request->u.sortRequest;
1555 Z_SortResponse *res = (Z_SortResponse *)
1556 odr_malloc (assoc->encode, sizeof(*res));
1557 bend_sort_rr *bsrr = (bend_sort_rr *)
1558 odr_malloc (assoc->encode, sizeof(*bsrr));
1560 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1562 logf(LOG_LOG, "Got SortRequest.");
1565 bsrr->num_input_setnames = req->num_inputResultSetNames;
1566 bsrr->input_setnames = req->inputResultSetNames;
1568 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1569 bsrr->input_setnames = req->inputResultSetNames->strings;
1571 bsrr->referenceId = req->referenceId;
1572 bsrr->output_setname = req->sortedResultSetName;
1573 bsrr->sort_sequence = req->sortSequence;
1574 bsrr->stream = assoc->encode;
1576 bsrr->sort_status = Z_SortStatus_failure;
1578 bsrr->errstring = 0;
1580 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend,
1583 res->referenceId = bsrr->referenceId;
1584 res->sortStatus = (int *)
1585 odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1586 *res->sortStatus = bsrr->sort_status;
1587 res->resultSetStatus = 0;
1590 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1592 res->diagnostics = dr->diagRecs;
1593 res->num_diagnostics = dr->num_diagRecs;
1595 res->diagnostics = dr;
1601 res->num_diagnostics = 0;
1603 res->diagnostics = 0;
1607 apdu->which = Z_APDU_sortResponse;
1608 apdu->u.sortResponse = res;
1612 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1615 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1616 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1617 odr_malloc (assoc->encode, sizeof(*res));
1618 bend_delete_rr *bdrr = (bend_delete_rr *)
1619 odr_malloc (assoc->encode, sizeof(*bdrr));
1620 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1622 logf(LOG_LOG, "Got DeleteRequest.");
1624 bdrr->num_setnames = req->num_resultSetList;
1625 bdrr->setnames = req->resultSetList;
1626 bdrr->stream = assoc->encode;
1627 bdrr->function = *req->deleteFunction;
1628 bdrr->referenceId = req->referenceId;
1630 ((int (*)(void *, bend_delete_rr *))
1631 (*assoc->bend_delete))(assoc->backend, bdrr);
1633 res->referenceId = req->referenceId;
1635 res->deleteOperationStatus = (int *)
1636 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1637 *res->deleteOperationStatus = bdrr->delete_status;
1639 res->deleteListStatuses = 0;
1640 res->numberNotDeleted = 0;
1641 res->bulkStatuses = 0;
1642 res->deleteMessage = 0;
1645 apdu->which = Z_APDU_deleteResultSetResponse;
1646 apdu->u.deleteResultSetResponse = res;
1650 static void process_close(association *assoc, request *reqb)
1652 Z_Close *req = reqb->request->u.close;
1653 static char *reasons[] =
1660 "securityViolation",
1667 logf(LOG_LOG, "Got Close, reason %s, message %s",
1668 reasons[*req->closeReason], req->diagnosticInformation ?
1669 req->diagnosticInformation : "NULL");
1670 if (assoc->version < 3) /* to make do_force respond with close */
1672 do_close_req(assoc, Z_Close_finished,
1673 "Association terminated by client", reqb);
1676 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1680 reqb->len_refid = refid->len;
1681 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1682 memcpy (reqb->refid, refid->buf, refid->len);
1686 reqb->len_refid = 0;
1691 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1693 process_response (a, req, res);
1696 bend_request bend_request_mk (bend_association a)
1698 request *nreq = request_get (&a->outgoing);
1699 nreq->request_mem = nmem_create ();
1703 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1708 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1709 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1710 id->len = id->size = req->len_refid;
1711 memcpy (id->buf, req->refid, req->len_refid);
1715 void bend_request_destroy (bend_request *req)
1717 nmem_destroy((*req)->request_mem);
1718 request_release(*req);
1722 int bend_backend_respond (bend_association a, bend_request req)
1724 return process_request (a, req);
1727 void bend_request_setdata(bend_request r, void *p)
1732 void *bend_request_getdata(bend_request r)
1734 return r->clientData;
1737 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1739 bend_esrequest_rr esrequest;
1741 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1742 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1744 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1746 logf(LOG_DEBUG,"inside Process esRequest");
1748 esrequest.esr = reqb->request->u.extendedServicesRequest;
1749 esrequest.stream = assoc->encode;
1750 esrequest.errcode = 0;
1751 esrequest.errstring = NULL;
1752 esrequest.request = reqb;
1753 esrequest.association = assoc;
1754 esrequest.referenceId = req->referenceId;
1756 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))
1757 (assoc->backend, &esrequest);
1759 /* If the response is being delayed, return NULL */
1760 if (esrequest.request == NULL)
1763 resp->referenceId = req->referenceId;
1765 if ( esrequest.errcode == 0 )
1767 /* Backend service indicates request will be processed */
1768 logf(LOG_DEBUG,"Request will be processed...Good !");
1769 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1773 /* Backend indicates error, request will not be processed */
1774 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1775 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1777 /* Do something with the members of bend_extendedservice */
1779 logf(LOG_DEBUG,"Send the result apdu");