2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.93 1999-07-06 12:17:15 adam
8 * Added option -1 that runs server once (for profiling purposes).
10 * Revision 1.92 1999/06/17 10:54:45 adam
11 * Added facility to specify implementation version - and name
14 * Revision 1.91 1999/06/01 14:29:12 adam
15 * Work on Extended Services.
17 * Revision 1.90 1999/05/27 13:02:20 adam
18 * Assigned OID for old DB Update (VAL_DBUPDATE0).
20 * Revision 1.89 1999/05/26 15:24:26 adam
21 * Fixed minor bugs regarding DB Update (introduced by previous commit).
23 * Revision 1.88 1999/04/20 09:56:48 adam
24 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
25 * Modified all encoders/decoders to reflect this change.
27 * Revision 1.87 1999/03/31 11:18:25 adam
28 * Implemented odr_strdup. Added Reference ID to backend server API.
30 * Revision 1.86 1999/02/02 13:57:38 adam
31 * Uses preprocessor define WIN32 instead of WINDOWS to build code
32 * for Microsoft WIN32.
34 * Revision 1.85 1998/11/17 09:52:59 adam
35 * Fixed minor bug (introduced by previous commit).
37 * Revision 1.84 1998/11/16 16:02:32 adam
38 * Added loggin utilies, log_rpn_query and log_scan_term. These used
39 * to be part of Zebra.
41 * Revision 1.83 1998/11/03 10:09:36 adam
42 * Fixed bug regarding YC.
44 * Revision 1.82 1998/10/20 14:00:30 quinn
47 * Revision 1.81 1998/10/13 16:12:24 adam
48 * Added support for Surrogate Diagnostics for Scan Term entries.
50 * Revision 1.80 1998/09/02 12:41:53 adam
51 * Added decode stream in bend search structures.
53 * Revision 1.79 1998/08/19 16:10:08 adam
54 * Changed som member names of DeleteResultSetRequest/Response.
56 * Revision 1.78 1998/08/03 10:23:55 adam
57 * Fixed bug regarding Options for Sort.
59 * Revision 1.77 1998/07/20 12:38:42 adam
60 * Implemented delete result set service to server API.
62 * Revision 1.76 1998/05/27 16:57:07 adam
63 * Support for surrogate diagnostic records added for bend_fetch.
65 * Revision 1.75 1998/05/18 10:13:07 adam
66 * Fixed call to es_request handler - extra argument was passed.
68 * Revision 1.74 1998/03/31 15:13:20 adam
69 * Development towards compiled ASN.1.
71 * Revision 1.73 1998/03/31 11:07:45 adam
72 * Furhter work on UNIverse resource report.
73 * Added Extended Services handling in frontend server.
75 * Revision 1.72 1998/02/11 11:53:35 adam
76 * Changed code so that it compiles as C++.
78 * Revision 1.71 1998/02/10 11:03:57 adam
79 * Added support for extended handlers in backend server interface.
81 * Revision 1.70 1998/01/29 13:15:35 adam
82 * Implemented sort for the backend interface.
84 * Revision 1.69 1997/09/30 11:48:12 adam
85 * Fixed bug introduced by previous commit.
87 * Revision 1.68 1997/09/29 13:18:59 adam
88 * Added function, oid_ent_to_oid, to replace the function
89 * oid_getoidbyent, which is not thread safe.
91 * Revision 1.67 1997/09/17 12:10:40 adam
94 * Revision 1.66 1997/09/05 15:26:44 adam
95 * Added ODR encode in search and scen bend request structures.
96 * Fixed a few enums that caused trouble with C++.
98 * Revision 1.65 1997/09/01 08:53:01 adam
99 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
100 * moved a separate directory. MSV5.0 project server.dsp created.
101 * As an option, the server can now operate as an NT service.
103 * Revision 1.64 1997/04/30 08:52:11 quinn
106 * Revision 1.63 1996/10/11 11:57:26 quinn
109 * Revision 1.62 1996/07/06 19:58:35 quinn
110 * System headerfiles gathered in yconfig
112 * Revision 1.61 1996/06/10 08:56:16 quinn
115 * Revision 1.60 1996/05/30 11:03:10 quinn
116 * Fixed NextresultSetPosition bug fixed.
118 * Revision 1.59 1996/05/14 09:26:46 quinn
119 * Added attribute set to scan backend
121 * Revision 1.58 1996/02/20 12:53:04 quinn
124 * Revision 1.57 1996/01/02 08:57:47 quinn
125 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
127 * Revision 1.56 1995/12/14 11:09:57 quinn
130 * Revision 1.55 1995/11/08 17:41:37 quinn
133 * Revision 1.54 1995/11/08 15:11:29 quinn
134 * Log of close transmit.
136 * Revision 1.53 1995/11/01 13:54:58 quinn
139 * Revision 1.52 1995/11/01 12:19:13 quinn
140 * Second attempt to fix same bug.
142 * Revision 1.50 1995/10/25 16:58:32 quinn
145 * Revision 1.49 1995/10/16 13:51:53 quinn
146 * Changes to provide Especs to the backend.
148 * Revision 1.48 1995/10/06 08:51:20 quinn
149 * Added Write-buffer.
151 * Revision 1.47 1995/08/29 14:24:16 quinn
152 * Added second half of close-handshake
154 * Revision 1.46 1995/08/29 11:17:58 quinn
155 * Added code to receive close
157 * Revision 1.45 1995/08/21 09:11:00 quinn
158 * Smallish fixes to suppport new formats.
160 * Revision 1.44 1995/08/17 12:45:25 quinn
161 * Fixed minor problems with GRS-1. Added support in c&s.
163 * Revision 1.43 1995/08/15 12:00:31 quinn
166 * Revision 1.42 1995/08/15 11:16:50 quinn
168 * Revision 1.41 1995/08/02 10:23:06 quinn
171 * Revision 1.40 1995/07/31 14:34:26 quinn
172 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
174 * Revision 1.39 1995/06/27 13:21:00 quinn
177 * Revision 1.38 1995/06/19 12:39:11 quinn
178 * Fixed bug in timeout code. Added BER dumper.
180 * Revision 1.37 1995/06/16 13:16:14 quinn
181 * Fixed Defaultdiagformat.
183 * Revision 1.36 1995/06/16 10:31:36 quinn
184 * Added session timeout.
186 * Revision 1.35 1995/06/15 07:45:14 quinn
189 * Revision 1.34 1995/06/14 15:26:46 quinn
190 * *** empty log message ***
192 * Revision 1.33 1995/06/06 14:57:05 quinn
193 * Better diagnostics.
195 * Revision 1.32 1995/06/06 08:41:44 quinn
196 * Better diagnostics.
198 * Revision 1.31 1995/06/06 08:15:37 quinn
201 * Revision 1.30 1995/06/05 10:53:32 quinn
202 * Added a better SCAN.
204 * Revision 1.29 1995/06/01 11:25:03 quinn
207 * Revision 1.28 1995/06/01 11:21:01 quinn
208 * Attempting to fix a bug in pack-records. replaced break with continue
209 * for large records, according to standard.
211 * Revision 1.27 1995/05/29 08:12:06 quinn
214 * Revision 1.26 1995/05/18 13:02:12 quinn
217 * Revision 1.25 1995/05/17 08:42:26 quinn
218 * Transfer auth info to backend. Allow backend to reject init gracefully.
220 * Revision 1.24 1995/05/16 08:51:04 quinn
221 * License, documentation, and memory fixes
223 * Revision 1.23 1995/05/15 13:25:10 quinn
226 * Revision 1.22 1995/05/15 11:56:39 quinn
227 * Asynchronous facilities. Restructuring of seshigh code.
229 * Revision 1.21 1995/05/02 08:53:19 quinn
230 * Trying in vain to fix comm with ISODE
232 * Revision 1.20 1995/04/20 15:13:00 quinn
235 * Revision 1.19 1995/04/18 08:15:34 quinn
236 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
237 * neater. We'll make the same change for decoding one day.
239 * Revision 1.18 1995/04/17 11:28:25 quinn
242 * Revision 1.17 1995/04/10 10:23:36 quinn
243 * Some work to add scan and other things.
245 * Revision 1.16 1995/03/31 09:18:55 quinn
248 * Revision 1.15 1995/03/30 14:03:23 quinn
249 * Added RFC1006 as separate library
251 * Revision 1.14 1995/03/30 12:18:17 quinn
254 * Revision 1.13 1995/03/30 09:09:24 quinn
255 * Added state-handle and some support for asynchronous activities.
257 * Revision 1.12 1995/03/29 15:40:16 quinn
258 * Ongoing work. Statserv is now dynamic by default
260 * Revision 1.11 1995/03/28 09:16:21 quinn
261 * Added record packing to the search request
263 * Revision 1.10 1995/03/27 08:34:24 quinn
264 * Added dynamic server functionality.
265 * Released bindings to session.c (is now redundant)
267 * Revision 1.9 1995/03/22 15:01:26 quinn
268 * Adjusting record packing.
270 * Revision 1.8 1995/03/22 10:13:21 quinn
271 * Working on record packer
273 * Revision 1.7 1995/03/21 15:53:31 quinn
276 * Revision 1.6 1995/03/21 12:30:09 quinn
277 * Beginning to add support for record packing.
279 * Revision 1.5 1995/03/17 10:44:13 quinn
280 * Added catch of null-string in makediagrec
282 * Revision 1.4 1995/03/17 10:18:08 quinn
283 * Added memory management.
285 * Revision 1.3 1995/03/16 17:42:39 quinn
288 * Revision 1.2 1995/03/16 13:29:01 quinn
289 * Partitioned server.
291 * Revision 1.1 1995/03/15 16:02:10 quinn
292 * Modded session.c to seshigh.c
297 * Frontend server logic.
299 * This code receives incoming APDUs, and handles client requests by means
300 * of the backend API.
302 * Some of the code is getting quite involved, compared to simpler servers -
303 * primarily because it is asynchronous both in the communication with
304 * the user and the backend. We think the complexity will pay off in
305 * the form of greater flexibility when more asynchronous facilities
308 * Memory management has become somewhat involved. In the simple case, where
309 * only one PDU is pending at a time, it will simply reuse the same memory,
310 * once it has found its working size. When we enable multiple concurrent
311 * operations, perhaps even with multiple parallel calls to the backend, it
312 * will maintain a pool of buffers for encoding and decoding, trying to
313 * minimize memory allocation/deallocation during normal operation.
315 * TODOs include (and will be done in order of public interest):
317 * Support for EXPLAIN - provide simple meta-database system.
318 * Support for access control.
319 * Support for resource control.
320 * Support for extended services - primarily Item Order.
321 * Rest of Z39.50-1994
336 #include <comstack.h>
343 #include <statserv.h>
347 static int process_request(association *assoc, request *req);
348 void backend_response(IOCHAN i, int event);
349 static int process_response(association *assoc, request *req, Z_APDU *res);
350 static Z_APDU *process_initRequest(association *assoc, request *reqb);
351 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
353 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
354 bend_search_rr *bsrr, int *fd);
355 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
357 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
358 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
359 static void process_close(association *assoc, request *reqb);
360 void save_referenceId (request *reqb, Z_ReferenceId *refid);
361 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
364 static FILE *apduf = 0; /* for use in static mode */
365 static statserv_options_block *control_block = 0;
367 /* Chas: Added in from DALI */
368 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
369 /* Chas: End of addition from DALI */
372 * Create and initialize a new association-handle.
373 * channel : iochannel for the current line.
374 * link : communications channel.
375 * Returns: 0 or a new association handle.
377 association *create_association(IOCHAN channel, COMSTACK link)
382 control_block = statserv_getcontrol();
383 if (!(anew = (association *)xmalloc(sizeof(*anew))))
385 anew->client_chan = channel;
386 anew->client_link = link;
387 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
388 !(anew->encode = odr_createmem(ODR_ENCODE)))
390 if (*control_block->apdufile)
395 strcpy(filename, control_block->apdufile);
396 if (!(anew->print = odr_createmem(ODR_PRINT)))
398 if (*control_block->apdufile != '-')
400 strcpy(filename, control_block->apdufile);
401 if (!control_block->dynamic)
405 if (!(apduf = fopen(filename, "w")))
407 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
410 setvbuf(apduf, 0, _IONBF, 0);
416 sprintf(filename + strlen(filename), ".%d", getpid());
417 if (!(f = fopen(filename, "w")))
419 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
422 setvbuf(f, 0, _IONBF, 0);
424 odr_setprint(anew->print, f);
429 anew->input_buffer = 0;
430 anew->input_buffer_len = 0;
432 anew->state = ASSOC_NEW;
433 request_initq(&anew->incoming);
434 request_initq(&anew->outgoing);
435 anew->proto = cs_getproto(link);
440 * Free association and release resources.
442 void destroy_association(association *h)
444 odr_destroy(h->decode);
445 odr_destroy(h->encode);
447 odr_destroy(h->print);
449 xfree(h->input_buffer);
451 bend_close(h->backend);
452 while (request_deq(&h->incoming));
453 while (request_deq(&h->outgoing));
454 request_delq(&h->incoming);
455 request_delq(&h->outgoing);
457 if (control_block && control_block->one_shot)
461 static void do_close_req(association *a, int reason, char *message,
465 Z_Close *cls = zget_Close(a->encode);
467 /* Purge request queue */
468 while (request_deq(&a->incoming));
469 while (request_deq(&a->outgoing));
472 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
473 reason, message ? message : "none");
474 apdu.which = Z_APDU_close;
476 *cls->closeReason = reason;
477 cls->diagnosticInformation = message;
478 process_response(a, req, &apdu);
479 iochan_settimeout(a->client_chan, 60);
483 logf(LOG_DEBUG, "v2 client. No Close PDU");
484 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
486 a->state = ASSOC_DEAD;
489 static void do_close(association *a, int reason, char *message)
491 do_close_req (a, reason, message, request_get(&a->outgoing));
495 * This is where PDUs from the client are read and the further
496 * processing is initiated. Flow of control moves down through the
497 * various process_* functions below, until the encoded result comes back up
498 * to the output handler in here.
500 * h : the I/O channel that has an outstanding event.
501 * event : the current outstanding event.
503 void ir_session(IOCHAN h, int event)
506 association *assoc = (association *)iochan_getdata(h);
507 COMSTACK conn = assoc->client_link;
510 assert(h && conn && assoc);
511 if (event == EVENT_TIMEOUT)
513 if (assoc->state != ASSOC_UP)
515 logf(LOG_LOG, "Final timeout - closing connection.");
517 destroy_association(assoc);
522 logf(LOG_LOG, "Session idle too long. Sending close.");
523 do_close(assoc, Z_Close_lackOfActivity, 0);
527 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
529 if (event & EVENT_INPUT)
531 logf(LOG_DEBUG, "ir_session (input)");
532 assert(assoc && conn);
533 /* We aren't speaking to this fellow */
534 if (assoc->state == ASSOC_DEAD)
536 logf(LOG_LOG, "Closed connection after reject");
538 destroy_association(assoc);
542 if ((res = cs_get(conn, &assoc->input_buffer,
543 &assoc->input_buffer_len)) <= 0)
545 logf(LOG_LOG, "Connection closed by client");
547 destroy_association(assoc);
551 else if (res == 1) /* incomplete read - wait for more */
553 if (cs_more(conn)) /* more stuff - call us again later, please */
554 iochan_setevent(h, EVENT_INPUT);
556 /* we got a complete PDU. Let's decode it */
557 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
558 req = request_get(&assoc->incoming); /* get a new request structure */
559 odr_reset(assoc->decode);
560 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
561 if (!z_APDU(assoc->decode, &req->request, 0, 0))
563 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
564 odr_errmsg(odr_geterror(assoc->decode)),
565 odr_offset(assoc->decode));
566 logf(LOG_LOG, "PDU dump:");
567 odr_dumpBER(log_file(), assoc->input_buffer, res);
568 do_close(assoc, Z_Close_protocolError, "Malformed package");
571 req->request_mem = odr_extract_mem(assoc->decode);
572 if (assoc->print && !z_APDU(assoc->print, &req->request, 0, 0))
574 logf(LOG_WARN, "ODR print error: %s",
575 odr_errmsg(odr_geterror(assoc->print)));
576 odr_reset(assoc->print);
578 request_enq(&assoc->incoming, req);
581 /* can we do something yet? */
582 req = request_head(&assoc->incoming);
583 if (req->state == REQUEST_IDLE)
585 request_deq(&assoc->incoming);
586 if (process_request(assoc, req) < 0)
587 do_close_req(assoc, Z_Close_systemProblem, "Unknown error",
591 if (event & EVENT_OUTPUT)
593 request *req = request_head(&assoc->outgoing);
595 logf(LOG_DEBUG, "ir_session (output)");
596 req->state = REQUEST_PENDING;
597 switch (res = cs_put(conn, req->response, req->len_response))
600 logf(LOG_LOG, "Connection closed by client");
602 destroy_association(assoc);
605 case 0: /* all sent - release the request structure */
606 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
607 nmem_destroy(req->request_mem);
608 request_deq(&assoc->outgoing);
609 request_release(req);
610 if (!request_head(&assoc->outgoing))
611 iochan_clearflag(h, EVENT_OUTPUT);
613 /* value of 1 -- partial send -- is simply ignored */
616 if (event & EVENT_EXCEPT)
618 logf(LOG_DEBUG, "ir_session (exception)");
620 destroy_association(assoc);
626 * Initiate request processing.
628 static int process_request(association *assoc, request *req)
634 assert(req && req->state == REQUEST_IDLE);
635 switch (req->request->which)
637 case Z_APDU_initRequest:
638 res = process_initRequest(assoc, req); break;
639 case Z_APDU_searchRequest:
640 res = process_searchRequest(assoc, req, &fd); break;
641 case Z_APDU_presentRequest:
642 res = process_presentRequest(assoc, req, &fd); break;
643 case Z_APDU_scanRequest:
644 res = process_scanRequest(assoc, req, &fd); break;
645 case Z_APDU_extendedServicesRequest:
646 if (assoc->bend_esrequest)
647 res = process_ESRequest(assoc, req, &fd);
650 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
654 case Z_APDU_sortRequest:
655 if (assoc->bend_sort)
656 res = process_sortRequest(assoc, req, &fd);
659 logf(LOG_WARN, "Cannot handle SORT APDU");
664 process_close(assoc, req); return 0;
665 case Z_APDU_deleteResultSetRequest:
666 if (assoc->bend_delete)
667 res = process_deleteRequest(assoc, req, &fd);
670 logf (LOG_WARN, "Cannot handle Delete APDU");
675 logf(LOG_WARN, "Bad APDU received");
680 logf(LOG_DEBUG, " result immediately available");
681 retval = process_response(assoc, req, res);
685 logf(LOG_DEBUG, " result unavailble");
688 else /* no result yet - one will be provided later */
692 /* Set up an I/O handler for the fd supplied by the backend */
694 logf(LOG_DEBUG, " establishing handler for result");
695 req->state = REQUEST_PENDING;
696 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
698 iochan_setdata(chan, assoc);
705 * Handle message from the backend.
707 void backend_response(IOCHAN i, int event)
709 association *assoc = (association *)iochan_getdata(i);
710 request *req = request_head(&assoc->incoming);
714 logf(LOG_DEBUG, "backend_response");
715 assert(assoc && req && req->state != REQUEST_IDLE);
716 /* determine what it is we're waiting for */
717 switch (req->request->which)
719 case Z_APDU_searchRequest:
720 res = response_searchRequest(assoc, req, 0, &fd); break;
722 case Z_APDU_presentRequest:
723 res = response_presentRequest(assoc, req, 0, &fd); break;
724 case Z_APDU_scanRequest:
725 res = response_scanRequest(assoc, req, 0, &fd); break;
728 logf(LOG_WARN, "Serious programmer's lapse or bug");
731 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
733 logf(LOG_LOG, "Fatal error when talking to backend");
734 do_close(assoc, Z_Close_systemProblem, 0);
738 else if (!res) /* no result yet - try again later */
740 logf(LOG_DEBUG, " no result yet");
741 iochan_setfd(i, fd); /* in case fd has changed */
746 * Encode response, and transfer the request structure to the outgoing queue.
748 static int process_response(association *assoc, request *req, Z_APDU *res)
750 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
751 if (!z_APDU(assoc->encode, &res, 0, 0))
753 logf(LOG_WARN, "ODR error when encoding response: %s",
754 odr_errmsg(odr_geterror(assoc->decode)));
755 odr_reset(assoc->encode);
758 req->response = odr_getbuf(assoc->encode, &req->len_response,
759 &req->size_response);
760 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
761 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
763 logf(LOG_WARN, "ODR print error: %s",
764 odr_errmsg(odr_geterror(assoc->print)));
765 odr_reset(assoc->print);
767 odr_reset(assoc->encode);
768 req->state = REQUEST_IDLE;
769 request_enq(&assoc->outgoing, req);
770 /* turn the work over to the ir_session handler */
771 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
772 /* Is there more work to be done? give that to the input handler too */
774 if (request_head(&assoc->incoming))
776 logf (LOG_DEBUG, "more work to be done");
777 iochan_setevent(assoc->client_chan, EVENT_WORK);
784 * Handle init request.
785 * At the moment, we don't check the options
786 * anywhere else in the code - we just try not to do anything that would
787 * break a naive client. We'll toss 'em into the association block when
788 * we need them there.
790 static Z_APDU *process_initRequest(association *assoc, request *reqb)
792 Z_InitRequest *req = reqb->request->u.initRequest;
793 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
794 Z_InitResponse *resp = apdu->u.initResponse;
795 bend_initrequest binitreq;
796 bend_initresult *binitres;
799 logf(LOG_LOG, "Got initRequest");
800 if (req->implementationId)
801 logf(LOG_LOG, "Id: %s", req->implementationId);
802 if (req->implementationName)
803 logf(LOG_LOG, "Name: %s", req->implementationName);
804 if (req->implementationVersion)
805 logf(LOG_LOG, "Version: %s", req->implementationVersion);
807 binitreq.stream = assoc->encode;
808 binitreq.configname = "default-config";
809 binitreq.auth = req->idAuthentication;
810 binitreq.referenceId = req->referenceId;
811 binitreq.implementation_version = 0;
812 binitreq.implementation_name = 0;
813 binitreq.bend_sort = NULL;
814 binitreq.bend_search = NULL;
815 binitreq.bend_present = NULL;
816 binitreq.bend_esrequest = NULL;
817 binitreq.bend_delete = NULL;
818 if (!(binitres = bend_init(&binitreq)))
820 logf(LOG_WARN, "Bad response from backend.");
824 assoc->backend = binitres->handle;
825 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
826 logf (LOG_DEBUG, "Sort handler installed");
827 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
828 logf (LOG_DEBUG, "Search handler installed");
829 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
830 logf (LOG_DEBUG, "Present handler installed");
831 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
832 logf (LOG_DEBUG, "ESRequest handler installed");
833 if ((assoc->bend_delete = (int (*)())binitreq.bend_delete))
834 logf (LOG_DEBUG, "Delete handler installed");
836 resp->referenceId = req->referenceId;
838 /* let's tell the client what we can do */
839 if (ODR_MASK_GET(req->options, Z_Options_search))
841 ODR_MASK_SET(resp->options, Z_Options_search);
842 strcat(options, "srch");
844 if (ODR_MASK_GET(req->options, Z_Options_present))
846 ODR_MASK_SET(resp->options, Z_Options_present);
847 strcat(options, " prst");
849 if (ODR_MASK_GET(req->options, Z_Options_delSet) && binitreq.bend_delete)
851 ODR_MASK_SET(resp->options, Z_Options_delSet);
852 strcat(options, " del");
854 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
855 binitreq.bend_esrequest)
857 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
858 strcat (options, " extendedServices");
860 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
862 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
863 strcat(options, " namedresults");
865 if (ODR_MASK_GET(req->options, Z_Options_scan))
867 ODR_MASK_SET(resp->options, Z_Options_scan);
868 strcat(options, " scan");
870 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
872 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
873 strcat(options, " concurop");
875 if (ODR_MASK_GET(req->options, Z_Options_sort) && binitreq.bend_sort)
877 ODR_MASK_SET(resp->options, Z_Options_sort);
878 strcat(options, " sort");
880 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
882 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
883 assoc->version = 2; /* 1 & 2 are equivalent */
885 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
887 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
890 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
892 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
895 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
896 assoc->maximumRecordSize = *req->maximumRecordSize;
897 if (assoc->maximumRecordSize > control_block->maxrecordsize)
898 assoc->maximumRecordSize = control_block->maxrecordsize;
899 assoc->preferredMessageSize = *req->preferredMessageSize;
900 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
901 assoc->preferredMessageSize = assoc->maximumRecordSize;
902 resp->preferredMessageSize = &assoc->preferredMessageSize;
903 resp->maximumRecordSize = &assoc->maximumRecordSize;
905 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
907 if (binitreq.implementation_name)
910 odr_malloc (assoc->encode,
911 strlen(binitreq.implementation_name) + 3 +
912 strlen(resp->implementationName));
913 sprintf (nv, "%s %s",
914 resp->implementationName, binitreq.implementation_name);
915 resp->implementationName = nv;
917 if (binitreq.implementation_version)
920 odr_malloc (assoc->encode,
921 strlen(binitreq.implementation_version) + 3 +
922 strlen(resp->implementationVersion));
923 sprintf (nv, "%s %s",
924 resp->implementationVersion, binitreq.implementation_version);
925 resp->implementationVersion = nv;
928 if (binitres->errcode)
930 logf(LOG_LOG, "Connection rejected by backend.");
932 assoc->state = ASSOC_DEAD;
935 assoc->state = ASSOC_UP;
940 * These functions should be merged.
943 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
946 dr->which = Z_DefaultDiagFormat_v2Addinfo;
947 dr->u.v2Addinfo = addinfo ? addinfo : "";
949 dr->which = Z_DiagForm_v2AddInfo;
950 dr->addinfo = addinfo ? addinfo : "";
955 * nonsurrogate diagnostic record.
957 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
960 Z_Records *rec = (Z_Records *)
961 odr_malloc (assoc->encode, sizeof(*rec));
964 odr_malloc (assoc->encode, sizeof(*err));
965 Z_DiagRec *drec = (Z_DiagRec *)
966 odr_malloc (assoc->encode, sizeof(*drec));
967 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
968 odr_malloc (assoc->encode, sizeof(*dr));
970 bib1.proto = assoc->proto;
971 bib1.oclass = CLASS_DIAGSET;
972 bib1.value = VAL_BIB1;
974 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
977 rec->which = Z_Records_NSD;
979 rec->u.nonSurrogateDiagnostic = dr;
981 rec->u.nonSurrogateDiagnostic = drec;
982 drec->which = Z_DiagRec_defaultFormat;
983 drec->u.defaultFormat = dr;
985 dr->diagnosticSetId =
986 odr_oiddup (assoc->encode, oid_ent_to_oid(&bib1, oid));
988 set_addinfo (dr, addinfo);
993 * surrogate diagnostic.
995 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
996 int error, char *addinfo)
999 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
1000 odr_malloc (assoc->encode, sizeof(*rec));
1001 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
1003 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1004 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
1005 odr_malloc (assoc->encode, sizeof(*dr));
1007 bib1.proto = assoc->proto;
1008 bib1.oclass = CLASS_DIAGSET;
1009 bib1.value = VAL_BIB1;
1011 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
1013 rec->databaseName = dbname;
1014 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
1015 rec->u.surrogateDiagnostic = drec;
1016 drec->which = Z_DiagRec_defaultFormat;
1017 drec->u.defaultFormat = dr;
1018 dr->diagnosticSetId = odr_oiddup (assoc->encode,
1019 oid_ent_to_oid(&bib1, oid));
1020 dr->condition = err;
1021 set_addinfo (dr, addinfo);
1027 * multiple nonsurrogate diagnostics.
1029 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
1032 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
1033 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
1035 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
1036 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
1037 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
1039 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
1040 bib1.proto = assoc->proto;
1041 bib1.oclass = CLASS_DIAGSET;
1042 bib1.value = VAL_BIB1;
1045 recs->num_diagRecs = 1;
1046 recs->diagRecs = recp;
1048 drec->which = Z_DiagRec_defaultFormat;
1049 drec->u.defaultFormat = rec;
1051 rec->diagnosticSetId = odr_oiddup (assoc->encode,
1052 oid_ent_to_oid(&bib1, oid));
1053 rec->condition = err;
1056 rec->which = Z_DefaultDiagFormat_v2Addinfo;
1057 rec->u.v2Addinfo = addinfo ? addinfo : "";
1059 rec->which = Z_DiagForm_v2AddInfo;
1060 rec->addinfo = addinfo ? addinfo : "";
1065 static Z_Records *pack_records(association *a, char *setname, int start,
1066 int *num, Z_RecordComposition *comp,
1067 int *next, int *pres, oid_value format,
1068 Z_ReferenceId *referenceId)
1070 int recno, total_length = 0, toget = *num, dumped_records = 0;
1071 Z_Records *records =
1072 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
1073 Z_NamePlusRecordList *reclist =
1074 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
1075 Z_NamePlusRecord **list =
1076 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
1078 records->which = Z_Records_DBOSD;
1079 records->u.databaseOrSurDiagnostics = reclist;
1080 reclist->num_records = 0;
1081 reclist->records = list;
1082 *pres = Z_PRES_SUCCESS;
1086 logf(LOG_LOG, "Request to pack %d+%d", start, toget);
1087 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
1088 a->maximumRecordSize);
1089 for (recno = start; reclist->num_records < toget; recno++)
1091 bend_fetchrequest freq;
1092 bend_fetchresult *fres;
1093 Z_NamePlusRecord *thisrec;
1094 int this_length = 0;
1096 * we get the number of bytes allocated on the stream before any
1097 * allocation done by the backend - this should give us a reasonable
1098 * idea of the total size of the data so far.
1100 total_length = odr_total(a->encode) - dumped_records;
1101 freq.setname = setname;
1102 freq.number = recno;
1104 freq.format = format;
1105 freq.stream = a->encode;
1106 freq.surrogate_flag = 0;
1107 freq.referenceId = referenceId;
1108 if (!(fres = bend_fetch(a->backend, &freq, 0)))
1110 *pres = Z_PRES_FAILURE;
1111 return diagrec(a, 2, "Backend interface problem");
1113 /* backend should be able to signal whether error is system-wide
1114 or only pertaining to current record */
1117 if (!freq.surrogate_flag)
1119 *pres = Z_PRES_FAILURE;
1120 return diagrec(a, fres->errcode, fres->errstring);
1122 reclist->records[reclist->num_records] =
1123 surrogatediagrec(a, fres->basename, fres->errcode,
1125 reclist->num_records++;
1126 *next = fres->last_in_set ? 0 : recno + 1;
1130 this_length = fres->len;
1132 this_length = odr_total(a->encode) - total_length;
1133 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1134 this_length, total_length);
1135 if (this_length + total_length > a->preferredMessageSize)
1137 /* record is small enough, really */
1138 if (this_length <= a->preferredMessageSize)
1140 logf(LOG_DEBUG, " Dropped last normal-sized record");
1141 *pres = Z_PRES_PARTIAL_2;
1144 /* record can only be fetched by itself */
1145 if (this_length < a->maximumRecordSize)
1147 logf(LOG_DEBUG, " Record > prefmsgsz");
1150 logf(LOG_DEBUG, " Dropped it");
1151 reclist->records[reclist->num_records] =
1152 surrogatediagrec(a, fres->basename, 16, 0);
1153 reclist->num_records++;
1154 *next = fres->last_in_set ? 0 : recno + 1;
1155 dumped_records += this_length;
1159 else /* too big entirely */
1161 logf(LOG_DEBUG, "Record > maxrcdsz");
1162 reclist->records[reclist->num_records] =
1163 surrogatediagrec(a, fres->basename, 17, 0);
1164 reclist->num_records++;
1165 *next = fres->last_in_set ? 0 : recno + 1;
1166 dumped_records += this_length;
1171 if (!(thisrec = (Z_NamePlusRecord *)
1172 odr_malloc(a->encode, sizeof(*thisrec))))
1174 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1175 strlen(fres->basename) + 1)))
1177 strcpy(thisrec->databaseName, fres->basename);
1178 thisrec->which = Z_NamePlusRecord_databaseRecord;
1179 thisrec->u.databaseRecord = z_ext_record(a->encode, fres->format,
1180 fres->record, fres->len);
1181 if (!thisrec->u.databaseRecord)
1183 reclist->records[reclist->num_records] = thisrec;
1184 reclist->num_records++;
1185 *next = fres->last_in_set ? 0 : recno + 1;
1187 *num = reclist->num_records;
1191 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1194 Z_SearchRequest *req = reqb->request->u.searchRequest;
1195 bend_search_rr *bsrr =
1196 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1198 logf(LOG_LOG, "Got SearchRequest.");
1200 bsrr->request = reqb;
1201 bsrr->association = assoc;
1202 bsrr->referenceId = req->referenceId;
1203 save_referenceId (reqb, bsrr->referenceId);
1205 logf (LOG_LOG, "ResultSet '%s'", req->resultSetName);
1206 if (req->databaseNames)
1209 for (i = 0; i < req->num_databaseNames; i++)
1210 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1212 switch (req->query->which)
1214 case Z_Query_type_1: case Z_Query_type_101:
1215 log_rpn_query (req->query->u.type_1);
1217 if (assoc->bend_search)
1219 bsrr->setname = req->resultSetName;
1220 bsrr->replace_set = *req->replaceIndicator;
1221 bsrr->num_bases = req->num_databaseNames;
1222 bsrr->basenames = req->databaseNames;
1223 bsrr->query = req->query;
1224 bsrr->stream = assoc->encode;
1225 bsrr->decode = assoc->decode;
1228 bsrr->errstring = NULL;
1229 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))
1230 (assoc->backend, bsrr);
1236 bend_searchrequest bsrq;
1237 bend_searchresult *bsrt;
1239 bsrq.setname = req->resultSetName;
1240 bsrq.replace_set = *req->replaceIndicator;
1241 bsrq.num_bases = req->num_databaseNames;
1242 bsrq.basenames = req->databaseNames;
1243 bsrq.query = req->query;
1244 bsrq.referenceId = req->referenceId;
1245 bsrq.stream = assoc->encode;
1246 bsrq.decode = assoc->decode;
1247 if (!(bsrt = bend_search (assoc->backend, &bsrq, fd)))
1249 bsrr->hits = bsrt->hits;
1250 bsrr->errcode = bsrt->errcode;
1251 bsrr->errstring = bsrt->errstring;
1253 return response_searchRequest(assoc, reqb, bsrr, fd);
1256 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1259 * Prepare a searchresponse based on the backend results. We probably want
1260 * to look at making the fetching of records nonblocking as well, but
1261 * so far, we'll keep things simple.
1262 * If bsrt is null, that means we're called in response to a communications
1263 * event, and we'll have to get the response for ourselves.
1265 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1266 bend_search_rr *bsrt, int *fd)
1268 Z_SearchRequest *req = reqb->request->u.searchRequest;
1269 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1270 Z_SearchResponse *resp = (Z_SearchResponse *)
1271 odr_malloc (assoc->encode, sizeof(*resp));
1272 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1273 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1274 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1275 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1282 apdu->which = Z_APDU_searchResponse;
1283 apdu->u.searchResponse = resp;
1284 resp->referenceId = req->referenceId;
1285 resp->additionalSearchInfo = 0;
1286 resp->otherInfo = 0;
1288 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1290 logf(LOG_FATAL, "Bad result from backend");
1293 else if (bsrt->errcode)
1295 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1296 resp->resultCount = nulint;
1297 resp->numberOfRecordsReturned = nulint;
1298 resp->nextResultSetPosition = nulint;
1299 resp->searchStatus = nulint;
1300 resp->resultSetStatus = none;
1301 resp->presentStatus = 0;
1305 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1306 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1307 Z_RecordComposition comp, *compp = 0;
1312 resp->resultCount = &bsrt->hits;
1314 comp.which = Z_RecordComp_simple;
1315 /* how many records does the user agent want, then? */
1316 if (bsrt->hits <= *req->smallSetUpperBound)
1318 *toget = bsrt->hits;
1319 if ((comp.u.simple = req->smallSetElementSetNames))
1322 else if (bsrt->hits < *req->largeSetLowerBound)
1324 *toget = *req->mediumSetPresentNumber;
1325 if (*toget > bsrt->hits)
1326 *toget = bsrt->hits;
1327 if ((comp.u.simple = req->mediumSetElementSetNames))
1333 if (*toget && !resp->records)
1338 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1339 prefformat->oclass != CLASS_RECSYN)
1342 form = prefformat->value;
1343 resp->records = pack_records(assoc, req->resultSetName, 1,
1344 toget, compp, next, presst, form, req->referenceId);
1347 resp->numberOfRecordsReturned = toget;
1348 resp->nextResultSetPosition = next;
1349 resp->searchStatus = sr;
1350 resp->resultSetStatus = 0;
1351 resp->presentStatus = presst;
1355 if (*resp->resultCount)
1357 resp->numberOfRecordsReturned = nulint;
1358 resp->nextResultSetPosition = next;
1359 resp->searchStatus = sr;
1360 resp->resultSetStatus = 0;
1361 resp->presentStatus = 0;
1368 * Maybe we got a little over-friendly when we designed bend_fetch to
1369 * get only one record at a time. Some backends can optimise multiple-record
1370 * fetches, and at any rate, there is some overhead involved in
1371 * all that selecting and hopping around. Problem is, of course, that the
1372 * frontend can't know ahead of time how many records it'll need to
1373 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1374 * is downright lousy as a bulk data transfer protocol.
1376 * To start with, we'll do the fetching of records from the backend
1377 * in one operation: To save some trips in and out of the event-handler,
1378 * and to simplify the interface to pack_records. At any rate, asynch
1379 * operation is more fun in operations that have an unpredictable execution
1380 * speed - which is normally more true for search than for present.
1382 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1385 Z_PresentRequest *req = reqb->request->u.presentRequest;
1389 Z_PresentResponse *resp;
1394 logf(LOG_LOG, "Got PresentRequest.");
1396 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1397 prefformat->oclass != CLASS_RECSYN)
1400 form = prefformat->value;
1401 if (assoc->bend_present)
1403 bend_present_rr *bprr = (bend_present_rr *)
1404 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1405 bprr->setname = req->resultSetId;
1406 bprr->start = *req->resultSetStartPoint;
1407 bprr->number = *req->numberOfRecordsRequested;
1408 bprr->format = form;
1409 bprr->comp = req->recordComposition;
1410 bprr->referenceId = req->referenceId;
1411 bprr->stream = assoc->encode;
1412 bprr->request = reqb;
1413 bprr->association = assoc;
1415 bprr->errstring = NULL;
1416 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(
1417 assoc->backend, bprr);
1422 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1423 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1424 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1425 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1426 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1429 *num = *req->numberOfRecordsRequested;
1431 apdu->which = Z_APDU_presentResponse;
1432 apdu->u.presentResponse = resp;
1433 resp->referenceId = req->referenceId;
1434 resp->otherInfo = 0;
1437 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1438 num, req->recordComposition, next, presst, form,
1442 resp->numberOfRecordsReturned = num;
1443 resp->presentStatus = presst;
1444 resp->nextResultSetPosition = next;
1450 * Scan was implemented rather in a hurry, and with support for only the basic
1451 * elements of the service in the backend API. Suggestions are welcome.
1453 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1455 Z_ScanRequest *req = reqb->request->u.scanRequest;
1456 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1457 Z_ScanResponse *res = (Z_ScanResponse *)
1458 odr_malloc (assoc->encode, sizeof(*res));
1459 int *scanStatus = (int *)
1460 odr_malloc (assoc->encode, sizeof(*scanStatus));
1461 int *numberOfEntriesReturned = (int *)
1462 odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1463 Z_ListEntries *ents = (Z_ListEntries *)
1464 odr_malloc (assoc->encode, sizeof(*ents));
1465 Z_DiagRecs *diagrecs_p = NULL;
1467 bend_scanrequest srq;
1468 bend_scanresult *srs;
1471 logf(LOG_LOG, "Got ScanRequest");
1472 *scanStatus = Z_Scan_failure;
1473 *numberOfEntriesReturned = 0;
1475 apdu->which = Z_APDU_scanResponse;
1476 apdu->u.scanResponse = res;
1477 res->referenceId = req->referenceId;
1479 res->scanStatus = scanStatus;
1480 res->numberOfEntriesReturned = numberOfEntriesReturned;
1481 res->positionOfTerm = 0;
1482 res->entries = ents;
1483 ents->num_entries = 0;
1484 ents->entries = NULL;
1485 ents->num_nonsurrogateDiagnostics = 0;
1486 ents->nonsurrogateDiagnostics = NULL;
1487 res->attributeSet = 0;
1490 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1491 attent->oclass != CLASS_ATTSET
1492 || attent->value != VAL_BIB1))
1493 diagrecs_p = diagrecs(assoc, 121, 0);
1494 else if (req->stepSize && *req->stepSize > 0)
1495 diagrecs_p = diagrecs(assoc, 205, 0);
1498 if (req->databaseNames)
1501 for (i = 0; i < req->num_databaseNames; i++)
1502 logf (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1504 srq.num_bases = req->num_databaseNames;
1505 srq.basenames = req->databaseNames;
1506 srq.num_entries = *req->numberOfTermsRequested;
1507 srq.term = req->termListAndStartPoint;
1508 srq.referenceId = req->referenceId;
1509 srq.stream = assoc->encode;
1510 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1511 attset->oclass != CLASS_RECSYN)
1512 srq.attributeset = VAL_NONE;
1514 srq.attributeset = attset->value;
1515 log_scan_term (req->termListAndStartPoint, attset->value);
1516 srq.term_position = req->preferredPositionInResponse ?
1517 *req->preferredPositionInResponse : 1;
1518 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1519 diagrecs_p = diagrecs(assoc, 2, 0);
1520 else if (srs->errcode)
1521 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1525 Z_Entry **tab = (Z_Entry **)
1526 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1528 if (srs->status == BEND_SCAN_PARTIAL)
1529 *scanStatus = Z_Scan_partial_5;
1531 *scanStatus = Z_Scan_success;
1532 ents->entries = tab;
1533 ents->num_entries = srs->num_entries;
1534 res->numberOfEntriesReturned = &ents->num_entries;
1535 res->positionOfTerm = &srs->term_position;
1536 for (i = 0; i < srs->num_entries; i++)
1542 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1543 if (srs->entries[i].occurrences >= 0)
1545 e->which = Z_Entry_termInfo;
1546 e->u.termInfo = t = (Z_TermInfo *)
1547 odr_malloc(assoc->encode, sizeof(*t));
1548 t->suggestedAttributes = 0;
1550 t->alternativeTerm = 0;
1551 t->byAttributes = 0;
1552 t->otherTermInfo = 0;
1553 t->globalOccurrences = &srs->entries[i].occurrences;
1554 t->term = (Z_Term *)
1555 odr_malloc(assoc->encode, sizeof(*t->term));
1556 t->term->which = Z_Term_general;
1557 t->term->u.general = o =
1558 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1559 o->buf = (unsigned char *)
1560 odr_malloc(assoc->encode, o->len = o->size =
1561 strlen(srs->entries[i].term));
1562 memcpy(o->buf, srs->entries[i].term, o->len);
1563 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1564 srs->entries[i].term, srs->entries[i].occurrences);
1568 Z_DiagRecs *drecs = diagrecs (assoc,
1569 srs->entries[i].errcode,
1570 srs->entries[i].errstring);
1571 assert (drecs->num_diagRecs == 1);
1572 e->which = Z_Entry_surrogateDiagnostic;
1573 assert (drecs->diagRecs[0]);
1574 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1581 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1582 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1587 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1590 Z_SortRequest *req = reqb->request->u.sortRequest;
1591 Z_SortResponse *res = (Z_SortResponse *)
1592 odr_malloc (assoc->encode, sizeof(*res));
1593 bend_sort_rr *bsrr = (bend_sort_rr *)
1594 odr_malloc (assoc->encode, sizeof(*bsrr));
1596 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1598 logf(LOG_LOG, "Got SortRequest.");
1601 bsrr->num_input_setnames = req->num_inputResultSetNames;
1602 bsrr->input_setnames = req->inputResultSetNames;
1604 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1605 bsrr->input_setnames = req->inputResultSetNames->strings;
1607 bsrr->referenceId = req->referenceId;
1608 bsrr->output_setname = req->sortedResultSetName;
1609 bsrr->sort_sequence = req->sortSequence;
1610 bsrr->stream = assoc->encode;
1612 bsrr->sort_status = Z_SortStatus_failure;
1614 bsrr->errstring = 0;
1616 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend,
1619 res->referenceId = bsrr->referenceId;
1620 res->sortStatus = (int *)
1621 odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1622 *res->sortStatus = bsrr->sort_status;
1623 res->resultSetStatus = 0;
1626 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1628 res->diagnostics = dr->diagRecs;
1629 res->num_diagnostics = dr->num_diagRecs;
1631 res->diagnostics = dr;
1637 res->num_diagnostics = 0;
1639 res->diagnostics = 0;
1643 apdu->which = Z_APDU_sortResponse;
1644 apdu->u.sortResponse = res;
1648 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1651 Z_DeleteResultSetRequest *req = reqb->request->u.deleteResultSetRequest;
1652 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1653 odr_malloc (assoc->encode, sizeof(*res));
1654 bend_delete_rr *bdrr = (bend_delete_rr *)
1655 odr_malloc (assoc->encode, sizeof(*bdrr));
1656 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1658 logf(LOG_LOG, "Got DeleteRequest.");
1660 bdrr->num_setnames = req->num_resultSetList;
1661 bdrr->setnames = req->resultSetList;
1662 bdrr->stream = assoc->encode;
1663 bdrr->function = *req->deleteFunction;
1664 bdrr->referenceId = req->referenceId;
1666 ((int (*)(void *, bend_delete_rr *))
1667 (*assoc->bend_delete))(assoc->backend, bdrr);
1669 res->referenceId = req->referenceId;
1671 res->deleteOperationStatus = (int *)
1672 odr_malloc (assoc->encode, sizeof(*res->deleteOperationStatus));
1673 *res->deleteOperationStatus = bdrr->delete_status;
1675 res->deleteListStatuses = 0;
1676 res->numberNotDeleted = 0;
1677 res->bulkStatuses = 0;
1678 res->deleteMessage = 0;
1681 apdu->which = Z_APDU_deleteResultSetResponse;
1682 apdu->u.deleteResultSetResponse = res;
1686 static void process_close(association *assoc, request *reqb)
1688 Z_Close *req = reqb->request->u.close;
1689 static char *reasons[] =
1696 "securityViolation",
1703 logf(LOG_LOG, "Got Close, reason %s, message %s",
1704 reasons[*req->closeReason], req->diagnosticInformation ?
1705 req->diagnosticInformation : "NULL");
1706 if (assoc->version < 3) /* to make do_force respond with close */
1708 do_close_req(assoc, Z_Close_finished,
1709 "Association terminated by client", reqb);
1712 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1716 reqb->len_refid = refid->len;
1717 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1718 memcpy (reqb->refid, refid->buf, refid->len);
1722 reqb->len_refid = 0;
1727 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1729 process_response (a, req, res);
1732 bend_request bend_request_mk (bend_association a)
1734 request *nreq = request_get (&a->outgoing);
1735 nreq->request_mem = nmem_create ();
1739 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1744 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1745 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1746 id->len = id->size = req->len_refid;
1747 memcpy (id->buf, req->refid, req->len_refid);
1751 void bend_request_destroy (bend_request *req)
1753 nmem_destroy((*req)->request_mem);
1754 request_release(*req);
1758 int bend_backend_respond (bend_association a, bend_request req)
1760 return process_request (a, req);
1763 void bend_request_setdata(bend_request r, void *p)
1768 void *bend_request_getdata(bend_request r)
1770 return r->clientData;
1773 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1775 bend_esrequest_rr esrequest;
1777 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1778 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1780 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1782 logf(LOG_DEBUG,"inside Process esRequest");
1784 esrequest.esr = reqb->request->u.extendedServicesRequest;
1785 esrequest.stream = assoc->encode;
1786 esrequest.errcode = 0;
1787 esrequest.errstring = NULL;
1788 esrequest.request = reqb;
1789 esrequest.association = assoc;
1790 esrequest.referenceId = req->referenceId;
1792 ((int (*)(void *, bend_esrequest_rr *))(*assoc->bend_esrequest))
1793 (assoc->backend, &esrequest);
1795 /* If the response is being delayed, return NULL */
1796 if (esrequest.request == NULL)
1799 resp->referenceId = req->referenceId;
1801 if (esrequest.errcode == -1)
1803 /* Backend service indicates request will be processed */
1804 logf(LOG_DEBUG,"Request could be processed...Accepted !");
1805 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
1807 else if (esrequest.errcode == 0)
1809 /* Backend service indicates request will be processed */
1810 logf(LOG_DEBUG,"Request could be processed...Done !");
1811 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1815 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
1816 esrequest.errstring);
1818 /* Backend indicates error, request will not be processed */
1819 logf(LOG_DEBUG,"Request could not be processed...failure !");
1820 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1821 resp->num_diagnostics = diagRecs->num_diagRecs;
1822 resp->diagnostics = diagRecs->diagRecs;
1824 /* Do something with the members of bend_extendedservice */
1826 logf(LOG_DEBUG,"Send the result apdu");