1 Possible compatibility problems with earlier versions marked with '*'.
5 The generic front-end server (server/seshigh.c) now supports returning
6 Init diagnostics to the client in User-information-field, in
7 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
12 Allow any CQL relation (not just all,any,exact,scr).
14 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
15 that features the same UI.
17 Implemented command update0 in YAZ client which is equivalent to
18 update but uses old of Ext Update ASN.1.
20 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
21 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
22 Previously no OID was used for this info.
24 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
25 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
26 returns 'malformed search term' otherwise.
28 SortResponse member resultCount now set to NULL in sort handler of
31 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
34 Add three new utility functions for translating OIDs between various
35 formats -- symbolic name such as "Usmarc", minus-1-terminated int
36 arrays and dotted strings such as "1.2.840.10003.9.5.1":
37 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
38 char *oid_to_dotstring(const int *oid, char *oidbuf);
39 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
41 Reverted modifications for ES Update definition for z_IU0Update
42 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
45 String value attributes for CCL parser.
47 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
48 which their FirstSearch server returns in Init responses, sometimes
49 carrying useful diagnostic information when Init fails. This has the
50 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
51 "z39.50/oclcui.asn", where its definition is somewhat different from
52 what OCLC document on their web-site, as required to interoperate with
55 Support for anonymous authentication in yaz-client. Use the command
58 * Fix the OID of the Index Data-local "admin" Extended Service from
59 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
60 the 1000, which indicates a locally-defined OID, was a mistake.
64 Fix CCL directive @case handling so that it affects string match for
65 both CCL keywords and qualifiers.
67 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
68 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
69 Decoder has been updated with ASN.1 changes as listed in
70 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
71 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
72 z_IUUpdate, remains unchanged.
74 ZOOM_record_get may now return a record in a specific character set.
75 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
76 "from" is the character set of record as returned by target. "to" is
77 the character set to be returned. If omitted, "to" is UTF-8.
79 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
81 New ODR utility, odr_getelement, which returns name of element for
82 which encoding/decoding failed.
84 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
85 in cases where a required element was omitted.
87 Bug fix: some MARC8 sequences were not converted.
89 New ZOOM option "step" which specifies number of records to be
90 retrieved in one chunk. Used in conjunction with "start" and "count".
92 SRW support for yaz-client. Use scheme http: to use it, e.g.
95 yaz-client no longer does (un)intelligent character set conversions
96 by default. Can be enabled with charset and marc_charset commands.
98 xmalloc trace fix for 64-bit systems such as DEC alpha.
100 Solaris 2.6 compile fix.
102 New function, cql_strerror() translates SRW error codes, as returned
103 by cql_transform_error(), into human-readable English strings. Used
104 in yaz-client diagnostics when appropriate.
106 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
107 converts it into a type-1 query which is sent to the server. This
108 makes CQL available for use with all Z-servers, as opposed to the tiny
109 minority that can handle CQL queries themselves.
113 New Debian package layout similar to the Redhat Package layout.
115 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
116 and search result respectively.
120 Redhat package is now several packages: libyaz (runtime libraries),
121 libyaz-devel (development and documentation, and yaz (utility programs).
122 Package spec file by Morten Bøgeskov.
124 New member 'schema' in struct bend_fetch_rr which the name of requested
125 schema (SRW/SRU) for record (or NULL if none was given). The fetch
126 handler MAY set this to reflect the schema of the returned record.
128 New member 'display_term' in struct scan_entry. GFS now sets member entries
129 and allocates scan entries to be filled by user scan handler. In previous
130 version, entries member was allocated by the scan handler. That still works,
131 but the GFS will ignore member display_term - assuming it was NOT set by
132 the handler. The fact that the GFS now allocates the entries both allows
133 for new members and makes a scan handler easier to write.
135 Fix CQL lex buffer overflow.
137 SRW/SRU recordPacking. For SRW default recordPacking is string. For
138 SRU default recordPacking is string.
140 SRU protocol support for frontend server.
142 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
144 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
146 Added scan for the ZOOM shell (zoomsh).
150 * String Identifers for Schemas (Amendment 5).
151 http://lcweb.loc.gov/z3950/agency/amend/am5.html
152 Old definition for schema
153 Odr_oid *schema; /* OPT */
158 Z_InternationalString *uri;
159 #define Z_Schema_oid 1
160 #define Z_Schema_uri 2
163 * resultCount parameter to Sort Response (Amendment 1).
164 http://lcweb.loc.gov/z3950/agency/amend/am1.html
166 Support for SRW 1.0 over HTTP. This is an optional feature and
167 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
170 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
171 on the same port. SRW SearchRetrieveRequests are mapped
172 to bend_init,bend_search,bend_fetch,bend_close.
174 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
176 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
177 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
179 ZOOM connections are SRW based if schem http is used for hostname
180 in connect, e.g. z = ZOOM_connection_new("http://myserver");
181 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
183 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
184 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
185 distance=n, order=true/false, relation=le, prox unit=word. If
186 n is omitted, distance 1 is used.
188 Fixed problem with C compiler include path in wrong order.
190 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
191 on Solaris. Patch from Ko van der Sloot.
193 New MARC decode API. All new functions operate on a yaz_marc_t
194 handle. The most important new functions are: yaz_marc_create,
195 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
196 decode and destroy respectively. Decoder can produce formats
197 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
198 include/yaz/marcdisp.h.
200 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
201 to UTF-8, UCS-32, wchar_t or Latin-1.
203 * Prototypes for yaz_iconv_-functions moved to separate header
204 include/yaz/yaz-iconv.h.
206 Make a few private functions 'static' in unix.c. This prevents
207 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
209 For ZOOM connection, the options targetImplementation{Id,Name,Version}
210 are set when Init Response is received.
212 New function ZOOM_connection_error_x similar to ZOOM_connection_error
213 but returns diagnostic set as well.
215 New function yaz_strerror which is a portable wrapper for
216 strerror/strerror_r/GetLastMessage.
218 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
219 is returned for MARC. If type is "oai", then OAI MARC is returned.
221 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
226 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
228 Fix bad race conditions on SIGTERM and terminate gracefully in
231 Move retrieval (data1) module to Zebra since nobody seems to be
234 Add GRS-1 render for ZOOM using same format as yaz-client.
238 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
240 Fix broken ESpec handling in data1 module.
242 SGML reader parses comments and makes them part of the data1 tree.
244 Added several type casts so that YAZ compiles as C++ code.
246 ZOOM didn't handle PDU encoding failures properly.
248 Added more Bib-1 diagnostics (approved extensions).
250 GNU configure: better check for iconv.
252 More portable use of accept, getpeername. Check for socklen_t. Use
253 int/size_t if socklen_t is not defined.
257 PQF parser rejects bad queries - including those with extra
258 characters in them. PQF parser used to silently ignore that.
259 Cleaner API for PQF added, which allows you to get detailed
260 error information for bad queries (see yaz/pquery.h).
262 Fixed bug in ZOOM_record_get for type "database".
264 Implemented mini iconv library supporting conversions between
265 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
267 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
271 Fixed ZOOM C record cache so that preferredRecordSyntax and
272 elementSetName is used to check for already fetched records.
276 Added three members in bend_initrequest structure to facilitate
277 character set negotiation.
279 Fixed a bug in frontend server that could cause indefinite
280 loops under rare conditions.
282 Revised character set utilities (charneg.h) so that encoding
283 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
285 For PQF, directive @term <type> sets term type for Scan/Search.
286 Here <type> is general, string, numeric, null. The term type
287 is inherited - just like @attr.
289 New call odr_set_charset that sets character set conversion for
290 international-strings on a ODR stream. Prototype is:
291 int odr_set_charset(ODR o, const char *to, const char *from);
292 The InternationalString is still represented as C string in YAZ
293 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
294 won't). On the protocol level, you can use any encoding.
296 Support for UNIX sockets in ZOOM.
298 Solaris recv sometimes returns errno == ENOENT. It is treated as
299 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
301 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
302 both client and server. Code by Morten Bøgeskov.
306 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
307 that they can be used directly from Visual Basic. You must recompile
308 your windows APP if you're using ZOOM.
310 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
311 Commands "lang" and "charset" sets language and character set respectively.
312 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
313 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
315 Attributes from multiple CCL fields may be OR'ed rather than merged
316 using directive "@field or". Fields are still merged by default -
317 equivalent to "@field merge".
319 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
322 Fixed bug in zget for parameter ExtendedServicesResponse.
328 Added PQF feature: '@attr type=value' may be written as '@type=value'.
330 Client displays USR.1:SearchResult-1 (hits per term).
332 Additional Search Info for search in Generic Frontend Server.
334 Fixed CCL parsing of "field=s".
336 WIN32 installer - using the excellent NSIS software from nullsoft.
338 Fixed CCL parsing of "field = - <number>".
340 Added function yaz_marc_decode that decodes MARC for line mode
341 display or XML (similar to that used by JZKit).
343 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
344 Z39.50. But ISO/ILL was, however.
346 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
347 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
349 http://lcweb.loc.gov/z3950/agency/amend/am2.html
350 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
354 New YAZ client features: Command completion and new commands:
355 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
356 Code provided by Jacob Poulsen.
358 New call oid_trav, that visits all registered OIDs via callback.
360 Function ZOOM_record_get now returns const char pointer rather than
361 void pointer. It saves a lot of type casts.
363 For YAZ client, command "auth" now allows you to set authentication
364 in IdPass style. It is enabled when three tokens are given - order
365 is user, group and password.
367 Fix memory leaks in MARC record handling for ZOOM.
369 New option for YAZ client, -k <kilobytes> that sets
370 maximum record size. Similar to -k option for generic frontend
371 server and yaz-ztest.
373 More fixes for scan. Non-zero stepSize handled. OID's fixes.
375 Prefix query parser reports "fail" when bad attribute set is given.
377 Fix in MARC decoder. Proximity logging. Fix for attribute set
378 in scan handler for server. Patches by Shigeru Ishida.
380 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
383 Configure option --with-openssl=<dir> now works when a directory is
384 specified. Patch provided by Morten Bøgeskov.
386 New option for YAZ client, -u <auth>, that sets authentication.
388 ZOOM fix: error information was sometimes "missing", since error
389 was cleared/reset too when it shouldn't.
391 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
395 Scan for ZOOM API. New object ZOOM_scanset. New functions
396 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
397 ZOOM_scanset_destroy.
399 New ZOOM function, ZOOM_connection_last_event, that returns type
400 of last event (such as "receive data", "send data", "apdu received",
403 New ZOOM option, schema, that specifies schema for retrieval.
405 New CCL feature. Qualifiers can be aliases for one or more
406 other qualifiers (if more than one is given, OR is used).
408 ZOOM uses named result sets if target supports it.
410 Two new YAZ client commands: . (dot, which sources a script of YAZ
411 client commands), and ! (to execute shell command.). Implemented
414 Working on Debian packages.
418 YAZ client enables named result sets only if target supports it.
420 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
422 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
423 with key="host" to get same result.
425 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
426 Function Z3950_resultset_record(s) returns references to records
427 "owned" by resultset. To become owner use Z3950_record_clone.
429 Function z_ext_record handles Extended Services. Thanks to
434 CCL Parser fix: ignore token comma when dealing with and-lists.
436 Documentation updates for COMSTACK.
438 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
439 Changed prototype Z3950_records. For some functions, int parameters
440 were changed to size_t.
442 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
445 New MARC decode/display function, marc_display_exl, which properly rejects
446 non-ISO2709 records. YAZ client uses it.
450 Fix bug: local attribute set wasn't set correctly in PQF strings.
454 * Old Z39.50 codecs no longer supported.
456 Added ZOOM C binding. See http://zoom.z3950.org/
458 Renamed states for COMSTACKs to avoid confusion with events.
460 Implemented cs_look and proper cs_rcvconnect.
462 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
464 Configure detects POSIX threads on OpenBSD.
466 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
467 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
469 When error is returned from present handler, non-surrogate diagnostic
470 is returned in present response (and fetch handler is no longer called).
472 * Minor adjustments to pquery parser (PQF). Token characters may be
473 escaped by using backslash (C-style).
475 PQF parser allows string attribute values to be specified. For @attr,
476 non-numeric characters after the equal-sign are treated as strings
477 (e.g. @attr 9=title).
479 CCL trunction character may be defined (@truncation in file)
481 * function zget_ExtendedServicesRequest sets waitAction to
482 waitIfPossible (was wait).
484 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
487 CCL operator names may be set in field definition files (CCL_bibset).
488 See ccl/bib1 for an example.
490 Fixes in ASN.1 compiler for C++ compatibility.
492 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
493 and "op_or" to avoid conflict with C++.
495 Fixed problem with GNU readline detection on Redhat 7.0.
497 Added step-size for Scan backend handler.
499 Fixed bug that made the frontend server crash when no attribute
500 set was specified for scan.
502 Front-end server automatically switches to original working directory
503 when installed as an NT service. Previously -w had to be specified to
506 Added extended attributes for retrieval module (data1), so that data1
507 records carry d1_readXML/SGML attributes. d1_read also supports
508 null-data rules ( <tag/>)
510 On UNIX when POSIX threads are available, a separate library libyazthread
511 is created. Programmers should link with that library and the yaz library
512 when using threads. The reason for the split was that some applications
513 on Linux, such as Apache, doesn't work well when using shared objects that
516 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
517 (or any frontend server) in SSL mode by specifying ssl: followed by
518 address. Only tested on UNIX.
520 Added feature for CCL module. Virtual structure s=al or s=ol generates
521 and-list and or-list respectively instead of phrase search.
525 * Added prefix "yaz_" for the functions log_init.., log_file.. and
526 log_mask_str. This was done to avoid name conflicts with other libraries
527 (such as other PHP extensions).
529 Added raw OID member for preferred record syntax (request_format_raw)
530 and returned record syntax (output_format_raw) for backend fetch method.
532 Config file yaz-config now accepts options so that it returns specific
533 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
535 Shared library support for UNIX using GNU libtool.
537 * Modified backend interface. Request/Response struct's replaced by
538 one read/write C struct. For example bend_fetchrequest and
539 bend_fetchresult have been replaced by single bend_fetch_rr struct.
540 Every handler - even search has to be registered in bend_init
541 handler. This means that the YAZ library no longer refers to
542 external functions and it makes it possible to make the whole
543 thing a single DLL/SO.
545 Added Segment handler for backend server.
547 Added Zmbol/Zebra administrative functions to YAZ client.
549 Threaded frontend server on UNIX (when POSIX Threads are available).
550 Starting the server with option -T enables multi-threading.
554 Added configure option --enable-comp/disable-comp to control use
555 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
556 located in sub directory asn.
558 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
559 in ${exec_prefix}/bin along with the other programs yaz-client and
562 GNU automake used to maintain makefiles.
566 Changed retrieval module so that we can load records with no abstract
567 syntax defined. Tagpaths in these records are fully composed of string
570 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
574 On UNIX, the generated makefile now supports a proper 'make install'.
575 The prefix can be set via GNU configure to set the install location
576 (default is /usr/local).
578 * YAZ programs client and ztest were renamed to yaz-client and
579 yaz-ztest to avoid conflicts when users install YAZ in "standard"
580 locations, such as /usr/bin,/usr/local/bin,etc.
582 * YAZ Header files were moved from include to include/yaz. YAZ Header
583 files are referred to as include <yaz/log.h> rather than <log.h>.
584 The YAZ include path (-I ..) is therefore the same as before. Programmers
585 should update their #include statements or use -Ipath/include/yaz
586 instead. The main motivation for doing this change is that YAZ header files
587 can be installed in "standard" locations /usr/include,/usr/local/include
588 without introducing conflicts, since ALL YAZ header files are stored
589 in subdirectory yaz (under /usr/include for example).
591 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
592 rather than project/workspace files. We switched because project files
593 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
596 Changed name of logging function, logf, to yaz_log, to prevent name
597 clash with some math-log functions. The YAZ header log.h defines logf
598 to yaz_log (#define) so there should be no incompatibilities by this
601 Added bend_start/bend_stop handlers for server. These handler are
602 called on start/stop of server. For windows they are called whenever
603 a service is started/stopped.
605 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
606 a fairly small ASN.1 compiler written in Tcl. The compiler is located
607 in util/yc.tcl. The auto-generated C code structures are, in a few
608 cases, incompatible with the old decoders. There are differences in the
609 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
610 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
611 The preprocessor variable ASN_COMPILED is defined when the compiled
612 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
613 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
614 wish to use the old encoders/decoders you can specify --disable-yc
617 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
618 version so that it supports both new - and old version of DB Update
620 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
621 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
622 change. The name parameter can be set to 0 in which no name is specified
623 for the construction. The macros odr_implicit and odr_explicit sets name
624 parameter to zero for the construction involved. New macros
625 odr_implicit_tag and odr_explicit_tag are similar to the others,
626 except that a name parameter is added. For programmers' that don't use
627 ODR they probably only need to change the call to z_APDU and z_External.
629 Added access control facility by interfacing the TCP wrapper library.
630 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
631 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
632 name of the daemon and enables the access control as specified in
633 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
635 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
636 den Dool <H.M.vdnDool@kub.nl>.
638 Added reference ID parameter to most functions in server API - refer
639 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
641 Changed name of ccl library to libccl.a (was ccl.a).
643 Fixed bug in decoder for Explain (Category TargetInfo).
645 Added support for GNU readline in client. Thanks to Jacob Poulsen
646 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
648 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
649 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
650 IMPLEMENTATION! This change was made to the development version before
651 the ZIG decided to retract the amendment. If any users MUST be
652 compatible with the original Update definition, PLEASE CONTACT US, and
653 we will include a separate definition corresponding to the old Update
654 ES. Note that because of the change to the ASN.1 of the
655 TaskPackageRecordStructure we cannot define a single structure that
656 will support both versions.
658 * Added const modifier to buffer parameter for some ODR/BER encoding
659 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
660 completeWAIS, odr_dumpBER.
662 Fixed bug in client.c which caused a crash when a scanResponse didn't
663 contain positionOfTerm.
665 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
666 * will cause an error in a client if a non-YAZ target sends both a
667 * list of Scan entries and non-surrogate diagnostics.
669 Retrieval module enhancements. Tag sets may be typed in the reference
670 to it. From the .abs-file the "tagset" directive takes a third optional
671 integer type for the tag set referenced. From a .tag-file the "include"
672 directive takes a third optional type as well. The old "type" directive
673 in the tag set itself is still recognized but acts as the default type
676 Backend interface change. Individual Scan terms returned from bend_scan
677 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
678 in include/backend.h.
680 Retrieval module enhancements. Multiple tag sets and attribute sets may
681 be specified in abstract syntax specs. Revised the error/warning for
682 logging messages reported by the retrieval module when reading the
685 Object Identifier system (oid_..) changed. The API is backwards
686 compatible but the oid-routines now allocates new OID's when needed.
687 Raw OID's may be specified in oid_getvalbyname.
689 YAZ now uses GNU configure to generate Makefile(s).
691 * Minor changes in some of the member names of DeleteResultSetRequest and
692 DeleteResultSetResponse. See include/proto.h.
694 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
695 and added member 'languages' in TargetInfo (which was missing).
697 Changed the way attribute sets are handled in the retrieval
698 module. These are now cached, just like the abstract syntaxes
701 Changed YAZ so that it links with compiled ASN.1.
703 Added Explain-schema definitions and mapping routines. The following
704 Explain categories have been implemented: AttributeDetails,
705 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
707 Fixed minor bug in Windows version of Server Library.
709 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
711 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
713 Added EXTERNAL: UNIverse Resource Report (non-standard).
715 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
716 ENUMERATED and SET OF.
718 * Added 'const' to some of the char pointer arguments for the
719 functions, data1_read_node, data1_getelementbytagname,
720 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
723 Fixed bug in data1_insert_taggeddata - the last_child member of
724 parent wasn't initialised.
726 * Changed data1_read_record and data1_read_node so that the supplied
727 "SGML"-buffer is read-only. In particular the resulting data1 - tree
728 doesn't refer to any parts of the "SGML"-buffer.
730 Fixed bug in server library (Windows version of statserv_remove).
732 * Changed code so that it compiles as C++. The type definition
733 of Odr_fun which is a member of Odr_arm was changed. The result is,
734 that an explicit typecast is needed for the fun pointer when
735 using Odr_arm - as in:
736 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
738 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
740 Implemented the new structured date and time definition as approved
741 by the ZIG. Added schemaId element to the specificTag in Espec-1
742 (also approved at the last ZIG). Thanks to RVDM.
744 Added some Object identifiers (RVDM).
746 Changed the Update Extended Service (RVDM).
748 Added command "refid" to client which specifies referenceId for
749 the following requests.
751 Implemented extended service handling for server. See ztest.c
752 for an example as well as backend.h. New handlers are registerd
755 * Changed interface for sort in server.
757 Added new members to statserv_options_block. It allows a server
758 to read options from another source than just the command line. Thanks
759 to Charles Woodfield.
761 * Changed definition of Z_Triple in file prt-grs.h - member boolean
762 renamed to zboolean. Some C++ compilers complained about the name.
764 Minor changes to gils.abs. Added index 's' (sort) on title
765 and date/time-last-modified.
769 Fixed bug in server library regarding inetd mode (-i). This bug
770 was introduced by release 1.4.
774 Added sort facility in client and backend server interface.
776 Fixed problem with dependencies in Makefile(s).
778 Fixed bugs for encoders/decoders of extended services and
781 Implemented sub-tree feature for schemas. Sub-trees are
782 referenced in *.abs-files. See explain.abs for an example
783 of the use of this feature.
785 Modified bib1.att; local attributes for ANY didn't include
786 ANY itself (only affects use of the retrieval module).
788 Fixed bug in plain SGML reader in function data1_read_node:
789 tags with prefix "var" was incorrectly interpreted as variants.
791 Added feature "sub-schemas" to enable references to - and definitions
792 of - group of elements.
794 * Removed member parent from type data1_element (in data1.h).
796 Implemented function odr_nullval() that returns the value of
799 * Removed member num_children from data1_node (in data1.h).
801 Made NT service interface part of the server library. The
802 function statserv_main uses the NT service when required and
803 calls the statserv_start / statserv_close routines.
805 Routine zget_SearchRequest and zget_PresentRequest fills
806 resultSetName/Id member with "default" instead of "Default".
808 Fixed memory leak in server. Request queue member wasn't freed.
810 Fixed nmem_exit so that memory is freed.
814 Revised the CCL parser utility to be thread safe.
816 Added function, oid_ent_to_oid, to replace the function
817 oid_getoidbyent, which is not thread safe.
819 * Added nmem_init and nmem_exit to initialize and release
820 NMEM resources. Function nmem_init should be called once in the
821 initial thread before NMEM/ODR is used. statserv.c and client.c
822 have been changed accordingly. The change was necessary to make
823 NMEM thread safe. The NMEM memory pool is shared amongst threads
824 in a process. Unix-based applications will still work fine without
827 Added NT Services interface for the the Z39.50 (statserv) Server.
828 Refer to the ztest.c source on the usage.
830 Windows 95/NT port using MSVC5.0. Project files are included in the
833 * Defined new 'global' handle for the retrieval (data1) system. The
834 new handled, data1_handle, describes the state of the data1 system.
835 This handle is passed as first argument to virtually all
836 data1 related routines. The functions data1_create and data1_destroy
837 creates and destroys a data1 handle respectively.
839 Added ODR encode stream member to all backend request structures
840 init, search, scan etc. This stream should be used to allocate all
841 memory used for the response when thread safe operation is needed.
843 Changed the comstack utility, cs_addstr, to be thread safe. The
844 returned hostname string returned by the function is now part the
847 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
848 function. The cs_straddr takes a COMSTACK handle as argument, so this
849 function must be used after cs_create and before bind/connect.
850 This function is thread safe.
852 Moved test server to 'ztest' directory - generic server code still
853 in 'server' directory.
855 Made prefix query (pquery.c) utility thread safe.
857 Added new function modifier YAZ_EXPORT to 'export' public DLL
858 functions when using windows (see include/yconfig.h).
860 Added definitions to the OID database (util/oid.c) (RVDM).
862 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
864 Added call to ccl_rpn_delete in client program.
866 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
867 release of RPN structure.
869 Added support for C++, headers uses extern "C" for public definitions.
870 With input from RVDM.
872 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
873 Thanks to Ronald van der Meer (RVDM).
875 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
877 Added support for private extensions to the OID database
878 (oid_setprivateoids()). Thanks to RVDM.
880 Added optional, physical ANY (key replication)
882 Fixed null-reference problem in GRS-1 output filter.
884 Proximity operator added to Prefix Query Format (PQF).
886 In test client command "base" accepts multiple databases.
888 Fixed bug in cs_close stack that caused trouble with WINSOCK.
892 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
894 Smallish bug-fixes in the new encoders/decoders (explain).
896 Bug fixed in DeleteRequest.
898 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
900 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
902 Added SOIF syntax (using private OID for now) to retrieval module and client.
904 Added Update extended service.
906 Added SearchResult-1 additional info structure.
908 Added optional CCL (ISO8777) interpreter as separate module. Available
911 --- 1.2 1996/6/10 (1st anniversary release)
913 Added Summary record syntax. Lightly tested.
915 Added OPAC record syntax. Untested.
917 Added ResourceReport service encoders/decoders. Untested.
919 Fixed bug in z_Unit - wrong tagging on unitSystem.
921 Fixed bug in the DiagRecs decoder.
923 Added options for max PDU size and session timeout to frontend-server.
925 Added documentation of query-language parsers and other supporting utilities.
927 [frontend-server] Added Attribute set to the bend_scanrequest API.
929 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
930 surrogate diagnostics were generated.
932 [retrieval] Allow multiple local values for attribute.
934 [retrieval] Allow multiple attributes per element in .abs files. index type.
936 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
940 Minor changes, mostly specific to Zebra's requirements (retrieval)
944 Repaired bug in frontend server when running multiple listening
945 endpoints in dynamic mode.
947 z_External() now won't break if a known, ASN.1 value comes encapsulated
948 in an octet-string. The value will pass through unmodified in an Odr_oct.
950 Added a bit of code to the demo client to decode & display
951 ASN.1-structured records represented in the octet-aligned branch of
952 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
954 Added z_ext_getentbyref() to the ASN module. Doc updated.
956 * Completed the SCAN definition in the ASN module. This may break SCAN
957 code based on older YAZ-versions at compile-time. The fix is easy -
960 * Added 'displayTerm' and OtherInformation to the TermInfo structure
961 under the SCAN definition. Remember to initialize this, server-people.
963 Comstack should now support the WAIS protocol in TCP/IP mode. Note
964 that this does not extend to ODR and ASN.
966 Comstack allows insertion of established socket (primarily for
967 inetd-operation of servers). Doc updated.
969 Front-end server can now start from the inetd in TCP mode. Doc
976 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
977 the rank and record number.
979 Adjustments to the frontend server.
981 Fixed diagnostic BER dumper. It ignored the file argument.
985 Various changes to retrieval module.
987 Changed the union discriminators of the protocol files from enums to
988 ints paired with #defines.
990 *Changed oident.class to oident.oclass to avoid a reserved word in C++
993 *Changed operator in the RPN structure to 'roperator', again to avoid a
996 Fixed problems in Explain decoders/encoders.
1000 Memory bug in log module fixed.
1002 --- 1.0pl1 1995/12/5
1004 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1006 Bug in Explain DatabaseInfo module fixed.
1008 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1012 The shift to v1.0 signals that we now consider the *core* functionality
1013 of YAZ reasonably stable (the core being more or less equivalent to
1014 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1015 tested (Explain not at all - though that will happen soonish).
1017 Minor changes to code to support Windows port.
1019 Various minor changes after we're getting to use GRS-1 & co. more.
1021 Added Espec-1 format.
1023 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1024 of the protocol and it cannot be selected when encoding (maps into 'string'
1025 when decoding). Needed to talk to some servers.
1027 Demo client can request simple element set names.
1029 Added Diagnostic Format encoders/decoders.
1031 Added simple Close handling to frontend server (no hooks for resource
1032 reporting yet), and demonstration client.
1034 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1036 --- 1.0b3 1995/08/24
1038 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1039 handled incorrectly when records were requested in the searchResponse. This
1040 will only affect you if you use the frontend-server.
1042 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1043 Test-client will ask for and print GRS1. Ztest will return dummy records
1046 Added Explain encoders/decoders to the service-level API. Untested.
1048 Added Extended Services: Item Order encoders and decoders to the Service-
1049 level API. Untested. We could use a recent copy of the pertinent bits
1050 of the ILL protocol to add those bits.
1052 Added diagnostic format 1 encoders/decoders to the service-level API.
1055 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1056 odr_cons.c, which causes a more correct output.
1058 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1059 was always set to 0 when no records were requested in the searchRequest.
1061 * Added better external-handling. This shouldn't harm old code that
1062 *encodes* externals. It can break code that looks for a
1063 'single-ASN1-type' representation, since those types that are known
1064 are now decoded immediately. Look at the SUTRS sample code in
1065 seshigh.c and client.c. Documentation updated.
1067 Handling of structured records in bend_fetchresponse. Length -1 marks
1068 structured record, type is deduced from format field.
1070 --- 1.0b2 1995/06/27
1071 Fairly quick maintenance release to add SUTRS support.
1073 Fixed handling of SUTRS records in the demonstration client.
1075 * Added format field to the bend_fetchrequest and bend_fetchresponce
1076 structures of the backend API (frontend server). When the record is
1077 returned, the value of the format field is mapped to an OID. The
1078 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1079 of the record. The special value VAL_NONE in the bend_request means
1080 that no specific format was requested by the client. Documentation
1081 updated accordingly. Test server (ztest) will return a fixed dummy
1082 SUTRS record if your client requests SUTRS.
1084 Documentation updated accordingly.
1086 You can now set external libraries and RANLIB support in the top-level
1090 First public release.