1 Possible compatibility problems with earlier versions marked with '*'.
5 Fix bad reference in UNIX comstack in function cs_addrstr.
9 The generic front-end server (server/seshigh.c) now supports returning
10 Init diagnostics to the client in User-information-field, in
11 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
16 Allow any CQL relation (not just all,any,exact,scr).
18 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
19 that features the same UI.
21 Implemented command update0 in YAZ client which is equivalent to
22 update but uses old of Ext Update ASN.1.
24 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
25 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
26 Previously no OID was used for this info.
28 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
29 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
30 returns 'malformed search term' otherwise.
32 SortResponse member resultCount now set to NULL in sort handler of
35 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
38 Add three new utility functions for translating OIDs between various
39 formats -- symbolic name such as "Usmarc", minus-1-terminated int
40 arrays and dotted strings such as "1.2.840.10003.9.5.1":
41 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
42 char *oid_to_dotstring(const int *oid, char *oidbuf);
43 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
45 Reverted modifications for ES Update definition for z_IU0Update
46 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
49 String value attributes for CCL parser.
51 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
52 which their FirstSearch server returns in Init responses, sometimes
53 carrying useful diagnostic information when Init fails. This has the
54 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
55 "z39.50/oclcui.asn", where its definition is somewhat different from
56 what OCLC document on their web-site, as required to interoperate with
59 Support for anonymous authentication in yaz-client. Use the command
62 * Fix the OID of the Index Data-local "admin" Extended Service from
63 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
64 the 1000, which indicates a locally-defined OID, was a mistake.
68 Fix CCL directive @case handling so that it affects string match for
69 both CCL keywords and qualifiers.
71 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
72 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
73 Decoder has been updated with ASN.1 changes as listed in
74 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
75 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
76 z_IUUpdate, remains unchanged.
78 ZOOM_record_get may now return a record in a specific character set.
79 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
80 "from" is the character set of record as returned by target. "to" is
81 the character set to be returned. If omitted, "to" is UTF-8.
83 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
85 New ODR utility, odr_getelement, which returns name of element for
86 which encoding/decoding failed.
88 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
89 in cases where a required element was omitted.
91 Bug fix: some MARC8 sequences were not converted.
93 New ZOOM option "step" which specifies number of records to be
94 retrieved in one chunk. Used in conjunction with "start" and "count".
96 SRW support for yaz-client. Use scheme http: to use it, e.g.
99 yaz-client no longer does (un)intelligent character set conversions
100 by default. Can be enabled with charset and marc_charset commands.
102 xmalloc trace fix for 64-bit systems such as DEC alpha.
104 Solaris 2.6 compile fix.
106 New function, cql_strerror() translates SRW error codes, as returned
107 by cql_transform_error(), into human-readable English strings. Used
108 in yaz-client diagnostics when appropriate.
110 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
111 converts it into a type-1 query which is sent to the server. This
112 makes CQL available for use with all Z-servers, as opposed to the tiny
113 minority that can handle CQL queries themselves.
117 New Debian package layout similar to the Redhat Package layout.
119 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
120 and search result respectively.
124 Redhat package is now several packages: libyaz (runtime libraries),
125 libyaz-devel (development and documentation, and yaz (utility programs).
126 Package spec file by Morten Bøgeskov.
128 New member 'schema' in struct bend_fetch_rr which the name of requested
129 schema (SRW/SRU) for record (or NULL if none was given). The fetch
130 handler MAY set this to reflect the schema of the returned record.
132 New member 'display_term' in struct scan_entry. GFS now sets member entries
133 and allocates scan entries to be filled by user scan handler. In previous
134 version, entries member was allocated by the scan handler. That still works,
135 but the GFS will ignore member display_term - assuming it was NOT set by
136 the handler. The fact that the GFS now allocates the entries both allows
137 for new members and makes a scan handler easier to write.
139 Fix CQL lex buffer overflow.
141 SRW/SRU recordPacking. For SRW default recordPacking is string. For
142 SRU default recordPacking is string.
144 SRU protocol support for frontend server.
146 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
148 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
150 Added scan for the ZOOM shell (zoomsh).
154 * String Identifers for Schemas (Amendment 5).
155 http://lcweb.loc.gov/z3950/agency/amend/am5.html
156 Old definition for schema
157 Odr_oid *schema; /* OPT */
162 Z_InternationalString *uri;
163 #define Z_Schema_oid 1
164 #define Z_Schema_uri 2
167 * resultCount parameter to Sort Response (Amendment 1).
168 http://lcweb.loc.gov/z3950/agency/amend/am1.html
170 Support for SRW 1.0 over HTTP. This is an optional feature and
171 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
174 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
175 on the same port. SRW SearchRetrieveRequests are mapped
176 to bend_init,bend_search,bend_fetch,bend_close.
178 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
180 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
181 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
183 ZOOM connections are SRW based if schem http is used for hostname
184 in connect, e.g. z = ZOOM_connection_new("http://myserver");
185 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
187 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
188 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
189 distance=n, order=true/false, relation=le, prox unit=word. If
190 n is omitted, distance 1 is used.
192 Fixed problem with C compiler include path in wrong order.
194 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
195 on Solaris. Patch from Ko van der Sloot.
197 New MARC decode API. All new functions operate on a yaz_marc_t
198 handle. The most important new functions are: yaz_marc_create,
199 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
200 decode and destroy respectively. Decoder can produce formats
201 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
202 include/yaz/marcdisp.h.
204 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
205 to UTF-8, UCS-32, wchar_t or Latin-1.
207 * Prototypes for yaz_iconv_-functions moved to separate header
208 include/yaz/yaz-iconv.h.
210 Make a few private functions 'static' in unix.c. This prevents
211 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
213 For ZOOM connection, the options targetImplementation{Id,Name,Version}
214 are set when Init Response is received.
216 New function ZOOM_connection_error_x similar to ZOOM_connection_error
217 but returns diagnostic set as well.
219 New function yaz_strerror which is a portable wrapper for
220 strerror/strerror_r/GetLastMessage.
222 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
223 is returned for MARC. If type is "oai", then OAI MARC is returned.
225 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
230 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
232 Fix bad race conditions on SIGTERM and terminate gracefully in
235 Move retrieval (data1) module to Zebra since nobody seems to be
238 Add GRS-1 render for ZOOM using same format as yaz-client.
242 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
244 Fix broken ESpec handling in data1 module.
246 SGML reader parses comments and makes them part of the data1 tree.
248 Added several type casts so that YAZ compiles as C++ code.
250 ZOOM didn't handle PDU encoding failures properly.
252 Added more Bib-1 diagnostics (approved extensions).
254 GNU configure: better check for iconv.
256 More portable use of accept, getpeername. Check for socklen_t. Use
257 int/size_t if socklen_t is not defined.
261 PQF parser rejects bad queries - including those with extra
262 characters in them. PQF parser used to silently ignore that.
263 Cleaner API for PQF added, which allows you to get detailed
264 error information for bad queries (see yaz/pquery.h).
266 Fixed bug in ZOOM_record_get for type "database".
268 Implemented mini iconv library supporting conversions between
269 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
271 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
275 Fixed ZOOM C record cache so that preferredRecordSyntax and
276 elementSetName is used to check for already fetched records.
280 Added three members in bend_initrequest structure to facilitate
281 character set negotiation.
283 Fixed a bug in frontend server that could cause indefinite
284 loops under rare conditions.
286 Revised character set utilities (charneg.h) so that encoding
287 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
289 For PQF, directive @term <type> sets term type for Scan/Search.
290 Here <type> is general, string, numeric, null. The term type
291 is inherited - just like @attr.
293 New call odr_set_charset that sets character set conversion for
294 international-strings on a ODR stream. Prototype is:
295 int odr_set_charset(ODR o, const char *to, const char *from);
296 The InternationalString is still represented as C string in YAZ
297 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
298 won't). On the protocol level, you can use any encoding.
300 Support for UNIX sockets in ZOOM.
302 Solaris recv sometimes returns errno == ENOENT. It is treated as
303 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
305 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
306 both client and server. Code by Morten Bøgeskov.
310 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
311 that they can be used directly from Visual Basic. You must recompile
312 your windows APP if you're using ZOOM.
314 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
315 Commands "lang" and "charset" sets language and character set respectively.
316 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
317 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
319 Attributes from multiple CCL fields may be OR'ed rather than merged
320 using directive "@field or". Fields are still merged by default -
321 equivalent to "@field merge".
323 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
326 Fixed bug in zget for parameter ExtendedServicesResponse.
332 Added PQF feature: '@attr type=value' may be written as '@type=value'.
334 Client displays USR.1:SearchResult-1 (hits per term).
336 Additional Search Info for search in Generic Frontend Server.
338 Fixed CCL parsing of "field=s".
340 WIN32 installer - using the excellent NSIS software from nullsoft.
342 Fixed CCL parsing of "field = - <number>".
344 Added function yaz_marc_decode that decodes MARC for line mode
345 display or XML (similar to that used by JZKit).
347 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
348 Z39.50. But ISO/ILL was, however.
350 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
351 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
353 http://lcweb.loc.gov/z3950/agency/amend/am2.html
354 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
358 New YAZ client features: Command completion and new commands:
359 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
360 Code provided by Jacob Poulsen.
362 New call oid_trav, that visits all registered OIDs via callback.
364 Function ZOOM_record_get now returns const char pointer rather than
365 void pointer. It saves a lot of type casts.
367 For YAZ client, command "auth" now allows you to set authentication
368 in IdPass style. It is enabled when three tokens are given - order
369 is user, group and password.
371 Fix memory leaks in MARC record handling for ZOOM.
373 New option for YAZ client, -k <kilobytes> that sets
374 maximum record size. Similar to -k option for generic frontend
375 server and yaz-ztest.
377 More fixes for scan. Non-zero stepSize handled. OID's fixes.
379 Prefix query parser reports "fail" when bad attribute set is given.
381 Fix in MARC decoder. Proximity logging. Fix for attribute set
382 in scan handler for server. Patches by Shigeru Ishida.
384 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
387 Configure option --with-openssl=<dir> now works when a directory is
388 specified. Patch provided by Morten Bøgeskov.
390 New option for YAZ client, -u <auth>, that sets authentication.
392 ZOOM fix: error information was sometimes "missing", since error
393 was cleared/reset too when it shouldn't.
395 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
399 Scan for ZOOM API. New object ZOOM_scanset. New functions
400 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
401 ZOOM_scanset_destroy.
403 New ZOOM function, ZOOM_connection_last_event, that returns type
404 of last event (such as "receive data", "send data", "apdu received",
407 New ZOOM option, schema, that specifies schema for retrieval.
409 New CCL feature. Qualifiers can be aliases for one or more
410 other qualifiers (if more than one is given, OR is used).
412 ZOOM uses named result sets if target supports it.
414 Two new YAZ client commands: . (dot, which sources a script of YAZ
415 client commands), and ! (to execute shell command.). Implemented
418 Working on Debian packages.
422 YAZ client enables named result sets only if target supports it.
424 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
426 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
427 with key="host" to get same result.
429 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
430 Function Z3950_resultset_record(s) returns references to records
431 "owned" by resultset. To become owner use Z3950_record_clone.
433 Function z_ext_record handles Extended Services. Thanks to
438 CCL Parser fix: ignore token comma when dealing with and-lists.
440 Documentation updates for COMSTACK.
442 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
443 Changed prototype Z3950_records. For some functions, int parameters
444 were changed to size_t.
446 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
449 New MARC decode/display function, marc_display_exl, which properly rejects
450 non-ISO2709 records. YAZ client uses it.
454 Fix bug: local attribute set wasn't set correctly in PQF strings.
458 * Old Z39.50 codecs no longer supported.
460 Added ZOOM C binding. See http://zoom.z3950.org/
462 Renamed states for COMSTACKs to avoid confusion with events.
464 Implemented cs_look and proper cs_rcvconnect.
466 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
468 Configure detects POSIX threads on OpenBSD.
470 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
471 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
473 When error is returned from present handler, non-surrogate diagnostic
474 is returned in present response (and fetch handler is no longer called).
476 * Minor adjustments to pquery parser (PQF). Token characters may be
477 escaped by using backslash (C-style).
479 PQF parser allows string attribute values to be specified. For @attr,
480 non-numeric characters after the equal-sign are treated as strings
481 (e.g. @attr 9=title).
483 CCL trunction character may be defined (@truncation in file)
485 * function zget_ExtendedServicesRequest sets waitAction to
486 waitIfPossible (was wait).
488 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
491 CCL operator names may be set in field definition files (CCL_bibset).
492 See ccl/bib1 for an example.
494 Fixes in ASN.1 compiler for C++ compatibility.
496 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
497 and "op_or" to avoid conflict with C++.
499 Fixed problem with GNU readline detection on Redhat 7.0.
501 Added step-size for Scan backend handler.
503 Fixed bug that made the frontend server crash when no attribute
504 set was specified for scan.
506 Front-end server automatically switches to original working directory
507 when installed as an NT service. Previously -w had to be specified to
510 Added extended attributes for retrieval module (data1), so that data1
511 records carry d1_readXML/SGML attributes. d1_read also supports
512 null-data rules ( <tag/>)
514 On UNIX when POSIX threads are available, a separate library libyazthread
515 is created. Programmers should link with that library and the yaz library
516 when using threads. The reason for the split was that some applications
517 on Linux, such as Apache, doesn't work well when using shared objects that
520 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
521 (or any frontend server) in SSL mode by specifying ssl: followed by
522 address. Only tested on UNIX.
524 Added feature for CCL module. Virtual structure s=al or s=ol generates
525 and-list and or-list respectively instead of phrase search.
529 * Added prefix "yaz_" for the functions log_init.., log_file.. and
530 log_mask_str. This was done to avoid name conflicts with other libraries
531 (such as other PHP extensions).
533 Added raw OID member for preferred record syntax (request_format_raw)
534 and returned record syntax (output_format_raw) for backend fetch method.
536 Config file yaz-config now accepts options so that it returns specific
537 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
539 Shared library support for UNIX using GNU libtool.
541 * Modified backend interface. Request/Response struct's replaced by
542 one read/write C struct. For example bend_fetchrequest and
543 bend_fetchresult have been replaced by single bend_fetch_rr struct.
544 Every handler - even search has to be registered in bend_init
545 handler. This means that the YAZ library no longer refers to
546 external functions and it makes it possible to make the whole
547 thing a single DLL/SO.
549 Added Segment handler for backend server.
551 Added Zmbol/Zebra administrative functions to YAZ client.
553 Threaded frontend server on UNIX (when POSIX Threads are available).
554 Starting the server with option -T enables multi-threading.
558 Added configure option --enable-comp/disable-comp to control use
559 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
560 located in sub directory asn.
562 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
563 in ${exec_prefix}/bin along with the other programs yaz-client and
566 GNU automake used to maintain makefiles.
570 Changed retrieval module so that we can load records with no abstract
571 syntax defined. Tagpaths in these records are fully composed of string
574 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
578 On UNIX, the generated makefile now supports a proper 'make install'.
579 The prefix can be set via GNU configure to set the install location
580 (default is /usr/local).
582 * YAZ programs client and ztest were renamed to yaz-client and
583 yaz-ztest to avoid conflicts when users install YAZ in "standard"
584 locations, such as /usr/bin,/usr/local/bin,etc.
586 * YAZ Header files were moved from include to include/yaz. YAZ Header
587 files are referred to as include <yaz/log.h> rather than <log.h>.
588 The YAZ include path (-I ..) is therefore the same as before. Programmers
589 should update their #include statements or use -Ipath/include/yaz
590 instead. The main motivation for doing this change is that YAZ header files
591 can be installed in "standard" locations /usr/include,/usr/local/include
592 without introducing conflicts, since ALL YAZ header files are stored
593 in subdirectory yaz (under /usr/include for example).
595 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
596 rather than project/workspace files. We switched because project files
597 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
600 Changed name of logging function, logf, to yaz_log, to prevent name
601 clash with some math-log functions. The YAZ header log.h defines logf
602 to yaz_log (#define) so there should be no incompatibilities by this
605 Added bend_start/bend_stop handlers for server. These handler are
606 called on start/stop of server. For windows they are called whenever
607 a service is started/stopped.
609 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
610 a fairly small ASN.1 compiler written in Tcl. The compiler is located
611 in util/yc.tcl. The auto-generated C code structures are, in a few
612 cases, incompatible with the old decoders. There are differences in the
613 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
614 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
615 The preprocessor variable ASN_COMPILED is defined when the compiled
616 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
617 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
618 wish to use the old encoders/decoders you can specify --disable-yc
621 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
622 version so that it supports both new - and old version of DB Update
624 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
625 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
626 change. The name parameter can be set to 0 in which no name is specified
627 for the construction. The macros odr_implicit and odr_explicit sets name
628 parameter to zero for the construction involved. New macros
629 odr_implicit_tag and odr_explicit_tag are similar to the others,
630 except that a name parameter is added. For programmers' that don't use
631 ODR they probably only need to change the call to z_APDU and z_External.
633 Added access control facility by interfacing the TCP wrapper library.
634 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
635 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
636 name of the daemon and enables the access control as specified in
637 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
639 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
640 den Dool <H.M.vdnDool@kub.nl>.
642 Added reference ID parameter to most functions in server API - refer
643 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
645 Changed name of ccl library to libccl.a (was ccl.a).
647 Fixed bug in decoder for Explain (Category TargetInfo).
649 Added support for GNU readline in client. Thanks to Jacob Poulsen
650 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
652 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
653 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
654 IMPLEMENTATION! This change was made to the development version before
655 the ZIG decided to retract the amendment. If any users MUST be
656 compatible with the original Update definition, PLEASE CONTACT US, and
657 we will include a separate definition corresponding to the old Update
658 ES. Note that because of the change to the ASN.1 of the
659 TaskPackageRecordStructure we cannot define a single structure that
660 will support both versions.
662 * Added const modifier to buffer parameter for some ODR/BER encoding
663 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
664 completeWAIS, odr_dumpBER.
666 Fixed bug in client.c which caused a crash when a scanResponse didn't
667 contain positionOfTerm.
669 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
670 * will cause an error in a client if a non-YAZ target sends both a
671 * list of Scan entries and non-surrogate diagnostics.
673 Retrieval module enhancements. Tag sets may be typed in the reference
674 to it. From the .abs-file the "tagset" directive takes a third optional
675 integer type for the tag set referenced. From a .tag-file the "include"
676 directive takes a third optional type as well. The old "type" directive
677 in the tag set itself is still recognized but acts as the default type
680 Backend interface change. Individual Scan terms returned from bend_scan
681 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
682 in include/backend.h.
684 Retrieval module enhancements. Multiple tag sets and attribute sets may
685 be specified in abstract syntax specs. Revised the error/warning for
686 logging messages reported by the retrieval module when reading the
689 Object Identifier system (oid_..) changed. The API is backwards
690 compatible but the oid-routines now allocates new OID's when needed.
691 Raw OID's may be specified in oid_getvalbyname.
693 YAZ now uses GNU configure to generate Makefile(s).
695 * Minor changes in some of the member names of DeleteResultSetRequest and
696 DeleteResultSetResponse. See include/proto.h.
698 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
699 and added member 'languages' in TargetInfo (which was missing).
701 Changed the way attribute sets are handled in the retrieval
702 module. These are now cached, just like the abstract syntaxes
705 Changed YAZ so that it links with compiled ASN.1.
707 Added Explain-schema definitions and mapping routines. The following
708 Explain categories have been implemented: AttributeDetails,
709 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
711 Fixed minor bug in Windows version of Server Library.
713 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
715 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
717 Added EXTERNAL: UNIverse Resource Report (non-standard).
719 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
720 ENUMERATED and SET OF.
722 * Added 'const' to some of the char pointer arguments for the
723 functions, data1_read_node, data1_getelementbytagname,
724 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
727 Fixed bug in data1_insert_taggeddata - the last_child member of
728 parent wasn't initialised.
730 * Changed data1_read_record and data1_read_node so that the supplied
731 "SGML"-buffer is read-only. In particular the resulting data1 - tree
732 doesn't refer to any parts of the "SGML"-buffer.
734 Fixed bug in server library (Windows version of statserv_remove).
736 * Changed code so that it compiles as C++. The type definition
737 of Odr_fun which is a member of Odr_arm was changed. The result is,
738 that an explicit typecast is needed for the fun pointer when
739 using Odr_arm - as in:
740 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
742 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
744 Implemented the new structured date and time definition as approved
745 by the ZIG. Added schemaId element to the specificTag in Espec-1
746 (also approved at the last ZIG). Thanks to RVDM.
748 Added some Object identifiers (RVDM).
750 Changed the Update Extended Service (RVDM).
752 Added command "refid" to client which specifies referenceId for
753 the following requests.
755 Implemented extended service handling for server. See ztest.c
756 for an example as well as backend.h. New handlers are registerd
759 * Changed interface for sort in server.
761 Added new members to statserv_options_block. It allows a server
762 to read options from another source than just the command line. Thanks
763 to Charles Woodfield.
765 * Changed definition of Z_Triple in file prt-grs.h - member boolean
766 renamed to zboolean. Some C++ compilers complained about the name.
768 Minor changes to gils.abs. Added index 's' (sort) on title
769 and date/time-last-modified.
773 Fixed bug in server library regarding inetd mode (-i). This bug
774 was introduced by release 1.4.
778 Added sort facility in client and backend server interface.
780 Fixed problem with dependencies in Makefile(s).
782 Fixed bugs for encoders/decoders of extended services and
785 Implemented sub-tree feature for schemas. Sub-trees are
786 referenced in *.abs-files. See explain.abs for an example
787 of the use of this feature.
789 Modified bib1.att; local attributes for ANY didn't include
790 ANY itself (only affects use of the retrieval module).
792 Fixed bug in plain SGML reader in function data1_read_node:
793 tags with prefix "var" was incorrectly interpreted as variants.
795 Added feature "sub-schemas" to enable references to - and definitions
796 of - group of elements.
798 * Removed member parent from type data1_element (in data1.h).
800 Implemented function odr_nullval() that returns the value of
803 * Removed member num_children from data1_node (in data1.h).
805 Made NT service interface part of the server library. The
806 function statserv_main uses the NT service when required and
807 calls the statserv_start / statserv_close routines.
809 Routine zget_SearchRequest and zget_PresentRequest fills
810 resultSetName/Id member with "default" instead of "Default".
812 Fixed memory leak in server. Request queue member wasn't freed.
814 Fixed nmem_exit so that memory is freed.
818 Revised the CCL parser utility to be thread safe.
820 Added function, oid_ent_to_oid, to replace the function
821 oid_getoidbyent, which is not thread safe.
823 * Added nmem_init and nmem_exit to initialize and release
824 NMEM resources. Function nmem_init should be called once in the
825 initial thread before NMEM/ODR is used. statserv.c and client.c
826 have been changed accordingly. The change was necessary to make
827 NMEM thread safe. The NMEM memory pool is shared amongst threads
828 in a process. Unix-based applications will still work fine without
831 Added NT Services interface for the the Z39.50 (statserv) Server.
832 Refer to the ztest.c source on the usage.
834 Windows 95/NT port using MSVC5.0. Project files are included in the
837 * Defined new 'global' handle for the retrieval (data1) system. The
838 new handled, data1_handle, describes the state of the data1 system.
839 This handle is passed as first argument to virtually all
840 data1 related routines. The functions data1_create and data1_destroy
841 creates and destroys a data1 handle respectively.
843 Added ODR encode stream member to all backend request structures
844 init, search, scan etc. This stream should be used to allocate all
845 memory used for the response when thread safe operation is needed.
847 Changed the comstack utility, cs_addstr, to be thread safe. The
848 returned hostname string returned by the function is now part the
851 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
852 function. The cs_straddr takes a COMSTACK handle as argument, so this
853 function must be used after cs_create and before bind/connect.
854 This function is thread safe.
856 Moved test server to 'ztest' directory - generic server code still
857 in 'server' directory.
859 Made prefix query (pquery.c) utility thread safe.
861 Added new function modifier YAZ_EXPORT to 'export' public DLL
862 functions when using windows (see include/yconfig.h).
864 Added definitions to the OID database (util/oid.c) (RVDM).
866 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
868 Added call to ccl_rpn_delete in client program.
870 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
871 release of RPN structure.
873 Added support for C++, headers uses extern "C" for public definitions.
874 With input from RVDM.
876 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
877 Thanks to Ronald van der Meer (RVDM).
879 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
881 Added support for private extensions to the OID database
882 (oid_setprivateoids()). Thanks to RVDM.
884 Added optional, physical ANY (key replication)
886 Fixed null-reference problem in GRS-1 output filter.
888 Proximity operator added to Prefix Query Format (PQF).
890 In test client command "base" accepts multiple databases.
892 Fixed bug in cs_close stack that caused trouble with WINSOCK.
896 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
898 Smallish bug-fixes in the new encoders/decoders (explain).
900 Bug fixed in DeleteRequest.
902 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
904 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
906 Added SOIF syntax (using private OID for now) to retrieval module and client.
908 Added Update extended service.
910 Added SearchResult-1 additional info structure.
912 Added optional CCL (ISO8777) interpreter as separate module. Available
915 --- 1.2 1996/6/10 (1st anniversary release)
917 Added Summary record syntax. Lightly tested.
919 Added OPAC record syntax. Untested.
921 Added ResourceReport service encoders/decoders. Untested.
923 Fixed bug in z_Unit - wrong tagging on unitSystem.
925 Fixed bug in the DiagRecs decoder.
927 Added options for max PDU size and session timeout to frontend-server.
929 Added documentation of query-language parsers and other supporting utilities.
931 [frontend-server] Added Attribute set to the bend_scanrequest API.
933 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
934 surrogate diagnostics were generated.
936 [retrieval] Allow multiple local values for attribute.
938 [retrieval] Allow multiple attributes per element in .abs files. index type.
940 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
944 Minor changes, mostly specific to Zebra's requirements (retrieval)
948 Repaired bug in frontend server when running multiple listening
949 endpoints in dynamic mode.
951 z_External() now won't break if a known, ASN.1 value comes encapsulated
952 in an octet-string. The value will pass through unmodified in an Odr_oct.
954 Added a bit of code to the demo client to decode & display
955 ASN.1-structured records represented in the octet-aligned branch of
956 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
958 Added z_ext_getentbyref() to the ASN module. Doc updated.
960 * Completed the SCAN definition in the ASN module. This may break SCAN
961 code based on older YAZ-versions at compile-time. The fix is easy -
964 * Added 'displayTerm' and OtherInformation to the TermInfo structure
965 under the SCAN definition. Remember to initialize this, server-people.
967 Comstack should now support the WAIS protocol in TCP/IP mode. Note
968 that this does not extend to ODR and ASN.
970 Comstack allows insertion of established socket (primarily for
971 inetd-operation of servers). Doc updated.
973 Front-end server can now start from the inetd in TCP mode. Doc
980 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
981 the rank and record number.
983 Adjustments to the frontend server.
985 Fixed diagnostic BER dumper. It ignored the file argument.
989 Various changes to retrieval module.
991 Changed the union discriminators of the protocol files from enums to
992 ints paired with #defines.
994 *Changed oident.class to oident.oclass to avoid a reserved word in C++
997 *Changed operator in the RPN structure to 'roperator', again to avoid a
1000 Fixed problems in Explain decoders/encoders.
1002 --- 1.0pl2 1995/12/6
1004 Memory bug in log module fixed.
1006 --- 1.0pl1 1995/12/5
1008 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1010 Bug in Explain DatabaseInfo module fixed.
1012 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1016 The shift to v1.0 signals that we now consider the *core* functionality
1017 of YAZ reasonably stable (the core being more or less equivalent to
1018 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1019 tested (Explain not at all - though that will happen soonish).
1021 Minor changes to code to support Windows port.
1023 Various minor changes after we're getting to use GRS-1 & co. more.
1025 Added Espec-1 format.
1027 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1028 of the protocol and it cannot be selected when encoding (maps into 'string'
1029 when decoding). Needed to talk to some servers.
1031 Demo client can request simple element set names.
1033 Added Diagnostic Format encoders/decoders.
1035 Added simple Close handling to frontend server (no hooks for resource
1036 reporting yet), and demonstration client.
1038 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1040 --- 1.0b3 1995/08/24
1042 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1043 handled incorrectly when records were requested in the searchResponse. This
1044 will only affect you if you use the frontend-server.
1046 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1047 Test-client will ask for and print GRS1. Ztest will return dummy records
1050 Added Explain encoders/decoders to the service-level API. Untested.
1052 Added Extended Services: Item Order encoders and decoders to the Service-
1053 level API. Untested. We could use a recent copy of the pertinent bits
1054 of the ILL protocol to add those bits.
1056 Added diagnostic format 1 encoders/decoders to the service-level API.
1059 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1060 odr_cons.c, which causes a more correct output.
1062 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1063 was always set to 0 when no records were requested in the searchRequest.
1065 * Added better external-handling. This shouldn't harm old code that
1066 *encodes* externals. It can break code that looks for a
1067 'single-ASN1-type' representation, since those types that are known
1068 are now decoded immediately. Look at the SUTRS sample code in
1069 seshigh.c and client.c. Documentation updated.
1071 Handling of structured records in bend_fetchresponse. Length -1 marks
1072 structured record, type is deduced from format field.
1074 --- 1.0b2 1995/06/27
1075 Fairly quick maintenance release to add SUTRS support.
1077 Fixed handling of SUTRS records in the demonstration client.
1079 * Added format field to the bend_fetchrequest and bend_fetchresponce
1080 structures of the backend API (frontend server). When the record is
1081 returned, the value of the format field is mapped to an OID. The
1082 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1083 of the record. The special value VAL_NONE in the bend_request means
1084 that no specific format was requested by the client. Documentation
1085 updated accordingly. Test server (ztest) will return a fixed dummy
1086 SUTRS record if your client requests SUTRS.
1088 Documentation updated accordingly.
1090 You can now set external libraries and RANLIB support in the top-level
1094 First public release.