1 Possible compatibility problems with earlier versions marked with '*'.
5 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
7 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
8 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
9 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
10 DNS lookup. There should not be any compatibility problems with this
11 assuming that blocking=1 or 0 is used.
13 Fix bad reference in UNIX comstack in function cs_addrstr.
17 The generic front-end server (server/seshigh.c) now supports returning
18 Init diagnostics to the client in User-information-field, in
19 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
24 Allow any CQL relation (not just all,any,exact,scr).
26 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
27 that features the same UI.
29 Implemented command update0 in YAZ client which is equivalent to
30 update but uses old of Ext Update ASN.1.
32 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
33 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
34 Previously no OID was used for this info.
36 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
37 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
38 returns 'malformed search term' otherwise.
40 SortResponse member resultCount now set to NULL in sort handler of
43 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
46 Add three new utility functions for translating OIDs between various
47 formats -- symbolic name such as "Usmarc", minus-1-terminated int
48 arrays and dotted strings such as "1.2.840.10003.9.5.1":
49 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
50 char *oid_to_dotstring(const int *oid, char *oidbuf);
51 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
53 Reverted modifications for ES Update definition for z_IU0Update
54 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
57 String value attributes for CCL parser.
59 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
60 which their FirstSearch server returns in Init responses, sometimes
61 carrying useful diagnostic information when Init fails. This has the
62 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
63 "z39.50/oclcui.asn", where its definition is somewhat different from
64 what OCLC document on their web-site, as required to interoperate with
67 Support for anonymous authentication in yaz-client. Use the command
70 * Fix the OID of the Index Data-local "admin" Extended Service from
71 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
72 the 1000, which indicates a locally-defined OID, was a mistake.
76 Fix CCL directive @case handling so that it affects string match for
77 both CCL keywords and qualifiers.
79 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
80 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
81 Decoder has been updated with ASN.1 changes as listed in
82 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
83 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
84 z_IUUpdate, remains unchanged.
86 ZOOM_record_get may now return a record in a specific character set.
87 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
88 "from" is the character set of record as returned by target. "to" is
89 the character set to be returned. If omitted, "to" is UTF-8.
91 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
93 New ODR utility, odr_getelement, which returns name of element for
94 which encoding/decoding failed.
96 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
97 in cases where a required element was omitted.
99 Bug fix: some MARC8 sequences were not converted.
101 New ZOOM option "step" which specifies number of records to be
102 retrieved in one chunk. Used in conjunction with "start" and "count".
104 SRW support for yaz-client. Use scheme http: to use it, e.g.
107 yaz-client no longer does (un)intelligent character set conversions
108 by default. Can be enabled with charset and marc_charset commands.
110 xmalloc trace fix for 64-bit systems such as DEC alpha.
112 Solaris 2.6 compile fix.
114 New function, cql_strerror() translates SRW error codes, as returned
115 by cql_transform_error(), into human-readable English strings. Used
116 in yaz-client diagnostics when appropriate.
118 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
119 converts it into a type-1 query which is sent to the server. This
120 makes CQL available for use with all Z-servers, as opposed to the tiny
121 minority that can handle CQL queries themselves.
125 New Debian package layout similar to the Redhat Package layout.
127 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
128 and search result respectively.
132 Redhat package is now several packages: libyaz (runtime libraries),
133 libyaz-devel (development and documentation, and yaz (utility programs).
134 Package spec file by Morten Bøgeskov.
136 New member 'schema' in struct bend_fetch_rr which the name of requested
137 schema (SRW/SRU) for record (or NULL if none was given). The fetch
138 handler MAY set this to reflect the schema of the returned record.
140 New member 'display_term' in struct scan_entry. GFS now sets member entries
141 and allocates scan entries to be filled by user scan handler. In previous
142 version, entries member was allocated by the scan handler. That still works,
143 but the GFS will ignore member display_term - assuming it was NOT set by
144 the handler. The fact that the GFS now allocates the entries both allows
145 for new members and makes a scan handler easier to write.
147 Fix CQL lex buffer overflow.
149 SRW/SRU recordPacking. For SRW default recordPacking is string. For
150 SRU default recordPacking is string.
152 SRU protocol support for frontend server.
154 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
156 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
158 Added scan for the ZOOM shell (zoomsh).
162 * String Identifers for Schemas (Amendment 5).
163 http://lcweb.loc.gov/z3950/agency/amend/am5.html
164 Old definition for schema
165 Odr_oid *schema; /* OPT */
170 Z_InternationalString *uri;
171 #define Z_Schema_oid 1
172 #define Z_Schema_uri 2
175 * resultCount parameter to Sort Response (Amendment 1).
176 http://lcweb.loc.gov/z3950/agency/amend/am1.html
178 Support for SRW 1.0 over HTTP. This is an optional feature and
179 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
182 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
183 on the same port. SRW SearchRetrieveRequests are mapped
184 to bend_init,bend_search,bend_fetch,bend_close.
186 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
188 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
189 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
191 ZOOM connections are SRW based if schem http is used for hostname
192 in connect, e.g. z = ZOOM_connection_new("http://myserver");
193 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
195 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
196 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
197 distance=n, order=true/false, relation=le, prox unit=word. If
198 n is omitted, distance 1 is used.
200 Fixed problem with C compiler include path in wrong order.
202 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
203 on Solaris. Patch from Ko van der Sloot.
205 New MARC decode API. All new functions operate on a yaz_marc_t
206 handle. The most important new functions are: yaz_marc_create,
207 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
208 decode and destroy respectively. Decoder can produce formats
209 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
210 include/yaz/marcdisp.h.
212 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
213 to UTF-8, UCS-32, wchar_t or Latin-1.
215 * Prototypes for yaz_iconv_-functions moved to separate header
216 include/yaz/yaz-iconv.h.
218 Make a few private functions 'static' in unix.c. This prevents
219 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
221 For ZOOM connection, the options targetImplementation{Id,Name,Version}
222 are set when Init Response is received.
224 New function ZOOM_connection_error_x similar to ZOOM_connection_error
225 but returns diagnostic set as well.
227 New function yaz_strerror which is a portable wrapper for
228 strerror/strerror_r/GetLastMessage.
230 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
231 is returned for MARC. If type is "oai", then OAI MARC is returned.
233 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
238 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
240 Fix bad race conditions on SIGTERM and terminate gracefully in
243 Move retrieval (data1) module to Zebra since nobody seems to be
246 Add GRS-1 render for ZOOM using same format as yaz-client.
250 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
252 Fix broken ESpec handling in data1 module.
254 SGML reader parses comments and makes them part of the data1 tree.
256 Added several type casts so that YAZ compiles as C++ code.
258 ZOOM didn't handle PDU encoding failures properly.
260 Added more Bib-1 diagnostics (approved extensions).
262 GNU configure: better check for iconv.
264 More portable use of accept, getpeername. Check for socklen_t. Use
265 int/size_t if socklen_t is not defined.
269 PQF parser rejects bad queries - including those with extra
270 characters in them. PQF parser used to silently ignore that.
271 Cleaner API for PQF added, which allows you to get detailed
272 error information for bad queries (see yaz/pquery.h).
274 Fixed bug in ZOOM_record_get for type "database".
276 Implemented mini iconv library supporting conversions between
277 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
279 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
283 Fixed ZOOM C record cache so that preferredRecordSyntax and
284 elementSetName is used to check for already fetched records.
288 Added three members in bend_initrequest structure to facilitate
289 character set negotiation.
291 Fixed a bug in frontend server that could cause indefinite
292 loops under rare conditions.
294 Revised character set utilities (charneg.h) so that encoding
295 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
297 For PQF, directive @term <type> sets term type for Scan/Search.
298 Here <type> is general, string, numeric, null. The term type
299 is inherited - just like @attr.
301 New call odr_set_charset that sets character set conversion for
302 international-strings on a ODR stream. Prototype is:
303 int odr_set_charset(ODR o, const char *to, const char *from);
304 The InternationalString is still represented as C string in YAZ
305 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
306 won't). On the protocol level, you can use any encoding.
308 Support for UNIX sockets in ZOOM.
310 Solaris recv sometimes returns errno == ENOENT. It is treated as
311 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
313 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
314 both client and server. Code by Morten Bøgeskov.
318 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
319 that they can be used directly from Visual Basic. You must recompile
320 your windows APP if you're using ZOOM.
322 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
323 Commands "lang" and "charset" sets language and character set respectively.
324 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
325 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
327 Attributes from multiple CCL fields may be OR'ed rather than merged
328 using directive "@field or". Fields are still merged by default -
329 equivalent to "@field merge".
331 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
334 Fixed bug in zget for parameter ExtendedServicesResponse.
340 Added PQF feature: '@attr type=value' may be written as '@type=value'.
342 Client displays USR.1:SearchResult-1 (hits per term).
344 Additional Search Info for search in Generic Frontend Server.
346 Fixed CCL parsing of "field=s".
348 WIN32 installer - using the excellent NSIS software from nullsoft.
350 Fixed CCL parsing of "field = - <number>".
352 Added function yaz_marc_decode that decodes MARC for line mode
353 display or XML (similar to that used by JZKit).
355 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
356 Z39.50. But ISO/ILL was, however.
358 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
359 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
361 http://lcweb.loc.gov/z3950/agency/amend/am2.html
362 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
366 New YAZ client features: Command completion and new commands:
367 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
368 Code provided by Jacob Poulsen.
370 New call oid_trav, that visits all registered OIDs via callback.
372 Function ZOOM_record_get now returns const char pointer rather than
373 void pointer. It saves a lot of type casts.
375 For YAZ client, command "auth" now allows you to set authentication
376 in IdPass style. It is enabled when three tokens are given - order
377 is user, group and password.
379 Fix memory leaks in MARC record handling for ZOOM.
381 New option for YAZ client, -k <kilobytes> that sets
382 maximum record size. Similar to -k option for generic frontend
383 server and yaz-ztest.
385 More fixes for scan. Non-zero stepSize handled. OID's fixes.
387 Prefix query parser reports "fail" when bad attribute set is given.
389 Fix in MARC decoder. Proximity logging. Fix for attribute set
390 in scan handler for server. Patches by Shigeru Ishida.
392 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
395 Configure option --with-openssl=<dir> now works when a directory is
396 specified. Patch provided by Morten Bøgeskov.
398 New option for YAZ client, -u <auth>, that sets authentication.
400 ZOOM fix: error information was sometimes "missing", since error
401 was cleared/reset too when it shouldn't.
403 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
407 Scan for ZOOM API. New object ZOOM_scanset. New functions
408 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
409 ZOOM_scanset_destroy.
411 New ZOOM function, ZOOM_connection_last_event, that returns type
412 of last event (such as "receive data", "send data", "apdu received",
415 New ZOOM option, schema, that specifies schema for retrieval.
417 New CCL feature. Qualifiers can be aliases for one or more
418 other qualifiers (if more than one is given, OR is used).
420 ZOOM uses named result sets if target supports it.
422 Two new YAZ client commands: . (dot, which sources a script of YAZ
423 client commands), and ! (to execute shell command.). Implemented
426 Working on Debian packages.
430 YAZ client enables named result sets only if target supports it.
432 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
434 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
435 with key="host" to get same result.
437 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
438 Function Z3950_resultset_record(s) returns references to records
439 "owned" by resultset. To become owner use Z3950_record_clone.
441 Function z_ext_record handles Extended Services. Thanks to
446 CCL Parser fix: ignore token comma when dealing with and-lists.
448 Documentation updates for COMSTACK.
450 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
451 Changed prototype Z3950_records. For some functions, int parameters
452 were changed to size_t.
454 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
457 New MARC decode/display function, marc_display_exl, which properly rejects
458 non-ISO2709 records. YAZ client uses it.
462 Fix bug: local attribute set wasn't set correctly in PQF strings.
466 * Old Z39.50 codecs no longer supported.
468 Added ZOOM C binding. See http://zoom.z3950.org/
470 Renamed states for COMSTACKs to avoid confusion with events.
472 Implemented cs_look and proper cs_rcvconnect.
474 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
476 Configure detects POSIX threads on OpenBSD.
478 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
479 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
481 When error is returned from present handler, non-surrogate diagnostic
482 is returned in present response (and fetch handler is no longer called).
484 * Minor adjustments to pquery parser (PQF). Token characters may be
485 escaped by using backslash (C-style).
487 PQF parser allows string attribute values to be specified. For @attr,
488 non-numeric characters after the equal-sign are treated as strings
489 (e.g. @attr 9=title).
491 CCL trunction character may be defined (@truncation in file)
493 * function zget_ExtendedServicesRequest sets waitAction to
494 waitIfPossible (was wait).
496 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
499 CCL operator names may be set in field definition files (CCL_bibset).
500 See ccl/bib1 for an example.
502 Fixes in ASN.1 compiler for C++ compatibility.
504 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
505 and "op_or" to avoid conflict with C++.
507 Fixed problem with GNU readline detection on Redhat 7.0.
509 Added step-size for Scan backend handler.
511 Fixed bug that made the frontend server crash when no attribute
512 set was specified for scan.
514 Front-end server automatically switches to original working directory
515 when installed as an NT service. Previously -w had to be specified to
518 Added extended attributes for retrieval module (data1), so that data1
519 records carry d1_readXML/SGML attributes. d1_read also supports
520 null-data rules ( <tag/>)
522 On UNIX when POSIX threads are available, a separate library libyazthread
523 is created. Programmers should link with that library and the yaz library
524 when using threads. The reason for the split was that some applications
525 on Linux, such as Apache, doesn't work well when using shared objects that
528 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
529 (or any frontend server) in SSL mode by specifying ssl: followed by
530 address. Only tested on UNIX.
532 Added feature for CCL module. Virtual structure s=al or s=ol generates
533 and-list and or-list respectively instead of phrase search.
537 * Added prefix "yaz_" for the functions log_init.., log_file.. and
538 log_mask_str. This was done to avoid name conflicts with other libraries
539 (such as other PHP extensions).
541 Added raw OID member for preferred record syntax (request_format_raw)
542 and returned record syntax (output_format_raw) for backend fetch method.
544 Config file yaz-config now accepts options so that it returns specific
545 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
547 Shared library support for UNIX using GNU libtool.
549 * Modified backend interface. Request/Response struct's replaced by
550 one read/write C struct. For example bend_fetchrequest and
551 bend_fetchresult have been replaced by single bend_fetch_rr struct.
552 Every handler - even search has to be registered in bend_init
553 handler. This means that the YAZ library no longer refers to
554 external functions and it makes it possible to make the whole
555 thing a single DLL/SO.
557 Added Segment handler for backend server.
559 Added Zmbol/Zebra administrative functions to YAZ client.
561 Threaded frontend server on UNIX (when POSIX Threads are available).
562 Starting the server with option -T enables multi-threading.
566 Added configure option --enable-comp/disable-comp to control use
567 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
568 located in sub directory asn.
570 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
571 in ${exec_prefix}/bin along with the other programs yaz-client and
574 GNU automake used to maintain makefiles.
578 Changed retrieval module so that we can load records with no abstract
579 syntax defined. Tagpaths in these records are fully composed of string
582 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
586 On UNIX, the generated makefile now supports a proper 'make install'.
587 The prefix can be set via GNU configure to set the install location
588 (default is /usr/local).
590 * YAZ programs client and ztest were renamed to yaz-client and
591 yaz-ztest to avoid conflicts when users install YAZ in "standard"
592 locations, such as /usr/bin,/usr/local/bin,etc.
594 * YAZ Header files were moved from include to include/yaz. YAZ Header
595 files are referred to as include <yaz/log.h> rather than <log.h>.
596 The YAZ include path (-I ..) is therefore the same as before. Programmers
597 should update their #include statements or use -Ipath/include/yaz
598 instead. The main motivation for doing this change is that YAZ header files
599 can be installed in "standard" locations /usr/include,/usr/local/include
600 without introducing conflicts, since ALL YAZ header files are stored
601 in subdirectory yaz (under /usr/include for example).
603 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
604 rather than project/workspace files. We switched because project files
605 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
608 Changed name of logging function, logf, to yaz_log, to prevent name
609 clash with some math-log functions. The YAZ header log.h defines logf
610 to yaz_log (#define) so there should be no incompatibilities by this
613 Added bend_start/bend_stop handlers for server. These handler are
614 called on start/stop of server. For windows they are called whenever
615 a service is started/stopped.
617 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
618 a fairly small ASN.1 compiler written in Tcl. The compiler is located
619 in util/yc.tcl. The auto-generated C code structures are, in a few
620 cases, incompatible with the old decoders. There are differences in the
621 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
622 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
623 The preprocessor variable ASN_COMPILED is defined when the compiled
624 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
625 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
626 wish to use the old encoders/decoders you can specify --disable-yc
629 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
630 version so that it supports both new - and old version of DB Update
632 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
633 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
634 change. The name parameter can be set to 0 in which no name is specified
635 for the construction. The macros odr_implicit and odr_explicit sets name
636 parameter to zero for the construction involved. New macros
637 odr_implicit_tag and odr_explicit_tag are similar to the others,
638 except that a name parameter is added. For programmers' that don't use
639 ODR they probably only need to change the call to z_APDU and z_External.
641 Added access control facility by interfacing the TCP wrapper library.
642 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
643 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
644 name of the daemon and enables the access control as specified in
645 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
647 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
648 den Dool <H.M.vdnDool@kub.nl>.
650 Added reference ID parameter to most functions in server API - refer
651 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
653 Changed name of ccl library to libccl.a (was ccl.a).
655 Fixed bug in decoder for Explain (Category TargetInfo).
657 Added support for GNU readline in client. Thanks to Jacob Poulsen
658 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
660 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
661 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
662 IMPLEMENTATION! This change was made to the development version before
663 the ZIG decided to retract the amendment. If any users MUST be
664 compatible with the original Update definition, PLEASE CONTACT US, and
665 we will include a separate definition corresponding to the old Update
666 ES. Note that because of the change to the ASN.1 of the
667 TaskPackageRecordStructure we cannot define a single structure that
668 will support both versions.
670 * Added const modifier to buffer parameter for some ODR/BER encoding
671 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
672 completeWAIS, odr_dumpBER.
674 Fixed bug in client.c which caused a crash when a scanResponse didn't
675 contain positionOfTerm.
677 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
678 * will cause an error in a client if a non-YAZ target sends both a
679 * list of Scan entries and non-surrogate diagnostics.
681 Retrieval module enhancements. Tag sets may be typed in the reference
682 to it. From the .abs-file the "tagset" directive takes a third optional
683 integer type for the tag set referenced. From a .tag-file the "include"
684 directive takes a third optional type as well. The old "type" directive
685 in the tag set itself is still recognized but acts as the default type
688 Backend interface change. Individual Scan terms returned from bend_scan
689 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
690 in include/backend.h.
692 Retrieval module enhancements. Multiple tag sets and attribute sets may
693 be specified in abstract syntax specs. Revised the error/warning for
694 logging messages reported by the retrieval module when reading the
697 Object Identifier system (oid_..) changed. The API is backwards
698 compatible but the oid-routines now allocates new OID's when needed.
699 Raw OID's may be specified in oid_getvalbyname.
701 YAZ now uses GNU configure to generate Makefile(s).
703 * Minor changes in some of the member names of DeleteResultSetRequest and
704 DeleteResultSetResponse. See include/proto.h.
706 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
707 and added member 'languages' in TargetInfo (which was missing).
709 Changed the way attribute sets are handled in the retrieval
710 module. These are now cached, just like the abstract syntaxes
713 Changed YAZ so that it links with compiled ASN.1.
715 Added Explain-schema definitions and mapping routines. The following
716 Explain categories have been implemented: AttributeDetails,
717 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
719 Fixed minor bug in Windows version of Server Library.
721 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
723 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
725 Added EXTERNAL: UNIverse Resource Report (non-standard).
727 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
728 ENUMERATED and SET OF.
730 * Added 'const' to some of the char pointer arguments for the
731 functions, data1_read_node, data1_getelementbytagname,
732 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
735 Fixed bug in data1_insert_taggeddata - the last_child member of
736 parent wasn't initialised.
738 * Changed data1_read_record and data1_read_node so that the supplied
739 "SGML"-buffer is read-only. In particular the resulting data1 - tree
740 doesn't refer to any parts of the "SGML"-buffer.
742 Fixed bug in server library (Windows version of statserv_remove).
744 * Changed code so that it compiles as C++. The type definition
745 of Odr_fun which is a member of Odr_arm was changed. The result is,
746 that an explicit typecast is needed for the fun pointer when
747 using Odr_arm - as in:
748 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
750 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
752 Implemented the new structured date and time definition as approved
753 by the ZIG. Added schemaId element to the specificTag in Espec-1
754 (also approved at the last ZIG). Thanks to RVDM.
756 Added some Object identifiers (RVDM).
758 Changed the Update Extended Service (RVDM).
760 Added command "refid" to client which specifies referenceId for
761 the following requests.
763 Implemented extended service handling for server. See ztest.c
764 for an example as well as backend.h. New handlers are registerd
767 * Changed interface for sort in server.
769 Added new members to statserv_options_block. It allows a server
770 to read options from another source than just the command line. Thanks
771 to Charles Woodfield.
773 * Changed definition of Z_Triple in file prt-grs.h - member boolean
774 renamed to zboolean. Some C++ compilers complained about the name.
776 Minor changes to gils.abs. Added index 's' (sort) on title
777 and date/time-last-modified.
781 Fixed bug in server library regarding inetd mode (-i). This bug
782 was introduced by release 1.4.
786 Added sort facility in client and backend server interface.
788 Fixed problem with dependencies in Makefile(s).
790 Fixed bugs for encoders/decoders of extended services and
793 Implemented sub-tree feature for schemas. Sub-trees are
794 referenced in *.abs-files. See explain.abs for an example
795 of the use of this feature.
797 Modified bib1.att; local attributes for ANY didn't include
798 ANY itself (only affects use of the retrieval module).
800 Fixed bug in plain SGML reader in function data1_read_node:
801 tags with prefix "var" was incorrectly interpreted as variants.
803 Added feature "sub-schemas" to enable references to - and definitions
804 of - group of elements.
806 * Removed member parent from type data1_element (in data1.h).
808 Implemented function odr_nullval() that returns the value of
811 * Removed member num_children from data1_node (in data1.h).
813 Made NT service interface part of the server library. The
814 function statserv_main uses the NT service when required and
815 calls the statserv_start / statserv_close routines.
817 Routine zget_SearchRequest and zget_PresentRequest fills
818 resultSetName/Id member with "default" instead of "Default".
820 Fixed memory leak in server. Request queue member wasn't freed.
822 Fixed nmem_exit so that memory is freed.
826 Revised the CCL parser utility to be thread safe.
828 Added function, oid_ent_to_oid, to replace the function
829 oid_getoidbyent, which is not thread safe.
831 * Added nmem_init and nmem_exit to initialize and release
832 NMEM resources. Function nmem_init should be called once in the
833 initial thread before NMEM/ODR is used. statserv.c and client.c
834 have been changed accordingly. The change was necessary to make
835 NMEM thread safe. The NMEM memory pool is shared amongst threads
836 in a process. Unix-based applications will still work fine without
839 Added NT Services interface for the the Z39.50 (statserv) Server.
840 Refer to the ztest.c source on the usage.
842 Windows 95/NT port using MSVC5.0. Project files are included in the
845 * Defined new 'global' handle for the retrieval (data1) system. The
846 new handled, data1_handle, describes the state of the data1 system.
847 This handle is passed as first argument to virtually all
848 data1 related routines. The functions data1_create and data1_destroy
849 creates and destroys a data1 handle respectively.
851 Added ODR encode stream member to all backend request structures
852 init, search, scan etc. This stream should be used to allocate all
853 memory used for the response when thread safe operation is needed.
855 Changed the comstack utility, cs_addstr, to be thread safe. The
856 returned hostname string returned by the function is now part the
859 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
860 function. The cs_straddr takes a COMSTACK handle as argument, so this
861 function must be used after cs_create and before bind/connect.
862 This function is thread safe.
864 Moved test server to 'ztest' directory - generic server code still
865 in 'server' directory.
867 Made prefix query (pquery.c) utility thread safe.
869 Added new function modifier YAZ_EXPORT to 'export' public DLL
870 functions when using windows (see include/yconfig.h).
872 Added definitions to the OID database (util/oid.c) (RVDM).
874 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
876 Added call to ccl_rpn_delete in client program.
878 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
879 release of RPN structure.
881 Added support for C++, headers uses extern "C" for public definitions.
882 With input from RVDM.
884 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
885 Thanks to Ronald van der Meer (RVDM).
887 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
889 Added support for private extensions to the OID database
890 (oid_setprivateoids()). Thanks to RVDM.
892 Added optional, physical ANY (key replication)
894 Fixed null-reference problem in GRS-1 output filter.
896 Proximity operator added to Prefix Query Format (PQF).
898 In test client command "base" accepts multiple databases.
900 Fixed bug in cs_close stack that caused trouble with WINSOCK.
904 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
906 Smallish bug-fixes in the new encoders/decoders (explain).
908 Bug fixed in DeleteRequest.
910 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
912 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
914 Added SOIF syntax (using private OID for now) to retrieval module and client.
916 Added Update extended service.
918 Added SearchResult-1 additional info structure.
920 Added optional CCL (ISO8777) interpreter as separate module. Available
923 --- 1.2 1996/6/10 (1st anniversary release)
925 Added Summary record syntax. Lightly tested.
927 Added OPAC record syntax. Untested.
929 Added ResourceReport service encoders/decoders. Untested.
931 Fixed bug in z_Unit - wrong tagging on unitSystem.
933 Fixed bug in the DiagRecs decoder.
935 Added options for max PDU size and session timeout to frontend-server.
937 Added documentation of query-language parsers and other supporting utilities.
939 [frontend-server] Added Attribute set to the bend_scanrequest API.
941 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
942 surrogate diagnostics were generated.
944 [retrieval] Allow multiple local values for attribute.
946 [retrieval] Allow multiple attributes per element in .abs files. index type.
948 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
952 Minor changes, mostly specific to Zebra's requirements (retrieval)
956 Repaired bug in frontend server when running multiple listening
957 endpoints in dynamic mode.
959 z_External() now won't break if a known, ASN.1 value comes encapsulated
960 in an octet-string. The value will pass through unmodified in an Odr_oct.
962 Added a bit of code to the demo client to decode & display
963 ASN.1-structured records represented in the octet-aligned branch of
964 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
966 Added z_ext_getentbyref() to the ASN module. Doc updated.
968 * Completed the SCAN definition in the ASN module. This may break SCAN
969 code based on older YAZ-versions at compile-time. The fix is easy -
972 * Added 'displayTerm' and OtherInformation to the TermInfo structure
973 under the SCAN definition. Remember to initialize this, server-people.
975 Comstack should now support the WAIS protocol in TCP/IP mode. Note
976 that this does not extend to ODR and ASN.
978 Comstack allows insertion of established socket (primarily for
979 inetd-operation of servers). Doc updated.
981 Front-end server can now start from the inetd in TCP mode. Doc
988 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
989 the rank and record number.
991 Adjustments to the frontend server.
993 Fixed diagnostic BER dumper. It ignored the file argument.
997 Various changes to retrieval module.
999 Changed the union discriminators of the protocol files from enums to
1000 ints paired with #defines.
1002 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1005 *Changed operator in the RPN structure to 'roperator', again to avoid a
1008 Fixed problems in Explain decoders/encoders.
1010 --- 1.0pl2 1995/12/6
1012 Memory bug in log module fixed.
1014 --- 1.0pl1 1995/12/5
1016 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1018 Bug in Explain DatabaseInfo module fixed.
1020 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1024 The shift to v1.0 signals that we now consider the *core* functionality
1025 of YAZ reasonably stable (the core being more or less equivalent to
1026 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1027 tested (Explain not at all - though that will happen soonish).
1029 Minor changes to code to support Windows port.
1031 Various minor changes after we're getting to use GRS-1 & co. more.
1033 Added Espec-1 format.
1035 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1036 of the protocol and it cannot be selected when encoding (maps into 'string'
1037 when decoding). Needed to talk to some servers.
1039 Demo client can request simple element set names.
1041 Added Diagnostic Format encoders/decoders.
1043 Added simple Close handling to frontend server (no hooks for resource
1044 reporting yet), and demonstration client.
1046 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1048 --- 1.0b3 1995/08/24
1050 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1051 handled incorrectly when records were requested in the searchResponse. This
1052 will only affect you if you use the frontend-server.
1054 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1055 Test-client will ask for and print GRS1. Ztest will return dummy records
1058 Added Explain encoders/decoders to the service-level API. Untested.
1060 Added Extended Services: Item Order encoders and decoders to the Service-
1061 level API. Untested. We could use a recent copy of the pertinent bits
1062 of the ILL protocol to add those bits.
1064 Added diagnostic format 1 encoders/decoders to the service-level API.
1067 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1068 odr_cons.c, which causes a more correct output.
1070 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1071 was always set to 0 when no records were requested in the searchRequest.
1073 * Added better external-handling. This shouldn't harm old code that
1074 *encodes* externals. It can break code that looks for a
1075 'single-ASN1-type' representation, since those types that are known
1076 are now decoded immediately. Look at the SUTRS sample code in
1077 seshigh.c and client.c. Documentation updated.
1079 Handling of structured records in bend_fetchresponse. Length -1 marks
1080 structured record, type is deduced from format field.
1082 --- 1.0b2 1995/06/27
1083 Fairly quick maintenance release to add SUTRS support.
1085 Fixed handling of SUTRS records in the demonstration client.
1087 * Added format field to the bend_fetchrequest and bend_fetchresponce
1088 structures of the backend API (frontend server). When the record is
1089 returned, the value of the format field is mapped to an OID. The
1090 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1091 of the record. The special value VAL_NONE in the bend_request means
1092 that no specific format was requested by the client. Documentation
1093 updated accordingly. Test server (ztest) will return a fixed dummy
1094 SUTRS record if your client requests SUTRS.
1096 Documentation updated accordingly.
1098 You can now set external libraries and RANLIB support in the top-level
1102 First public release.