1 Possible compatibility problems with earlier versions marked with '*'.
7 The generic front-end server (server/seshigh.c) now supports returning
8 Init diagnostics to the client in User-information-field, in
9 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
14 Allow any CQL relation (not just all,any,exact,scr).
16 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
17 that features the same UI.
19 Implemented command update0 in YAZ client which is equivalent to
20 update but uses old of Ext Update ASN.1.
22 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
23 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
24 Previously no OID was used for this info.
26 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
27 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
28 returns 'malformed search term' otherwise.
30 SortResponse member resultCount now set to NULL in sort handler of
33 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
36 Add three new utility functions for translating OIDs between various
37 formats -- symbolic name such as "Usmarc", minus-1-terminated int
38 arrays and dotted strings such as "1.2.840.10003.9.5.1":
39 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
40 char *oid_to_dotstring(const int *oid, char *oidbuf);
41 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
43 Reverted modifications for ES Update definition for z_IU0Update
44 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
47 String value attributes for CCL parser.
49 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
50 which their FirstSearch server returns in Init responses, sometimes
51 carrying useful diagnostic information when Init fails. This has the
52 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
53 "z39.50/oclcui.asn", where its definition is somewhat different from
54 what OCLC document on their web-site, as required to interoperate with
57 Support for anonymous authentication in yaz-client. Use the command
60 * Fix the OID of the Index Data-local "admin" Extended Service from
61 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
62 the 1000, which indicates a locally-defined OID, was a mistake.
66 Fix CCL directive @case handling so that it affects string match for
67 both CCL keywords and qualifiers.
69 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
70 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
71 Decoder has been updated with ASN.1 changes as listed in
72 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
73 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
74 z_IUUpdate, remains unchanged.
76 ZOOM_record_get may now return a record in a specific character set.
77 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
78 "from" is the character set of record as returned by target. "to" is
79 the character set to be returned. If omitted, "to" is UTF-8.
81 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
83 New ODR utility, odr_getelement, which returns name of element for
84 which encoding/decoding failed.
86 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
87 in cases where a required element was omitted.
89 Bug fix: some MARC8 sequences were not converted.
91 New ZOOM option "step" which specifies number of records to be
92 retrieved in one chunk. Used in conjunction with "start" and "count".
94 SRW support for yaz-client. Use scheme http: to use it, e.g.
97 yaz-client no longer does (un)intelligent character set conversions
98 by default. Can be enabled with charset and marc_charset commands.
100 xmalloc trace fix for 64-bit systems such as DEC alpha.
102 Solaris 2.6 compile fix.
104 New function, cql_strerror() translates SRW error codes, as returned
105 by cql_transform_error(), into human-readable English strings. Used
106 in yaz-client diagnostics when appropriate.
108 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
109 converts it into a type-1 query which is sent to the server. This
110 makes CQL available for use with all Z-servers, as opposed to the tiny
111 minority that can handle CQL queries themselves.
115 New Debian package layout similar to the Redhat Package layout.
117 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
118 and search result respectively.
122 Redhat package is now several packages: libyaz (runtime libraries),
123 libyaz-devel (development and documentation, and yaz (utility programs).
124 Package spec file by Morten Bøgeskov.
126 New member 'schema' in struct bend_fetch_rr which the name of requested
127 schema (SRW/SRU) for record (or NULL if none was given). The fetch
128 handler MAY set this to reflect the schema of the returned record.
130 New member 'display_term' in struct scan_entry. GFS now sets member entries
131 and allocates scan entries to be filled by user scan handler. In previous
132 version, entries member was allocated by the scan handler. That still works,
133 but the GFS will ignore member display_term - assuming it was NOT set by
134 the handler. The fact that the GFS now allocates the entries both allows
135 for new members and makes a scan handler easier to write.
137 Fix CQL lex buffer overflow.
139 SRW/SRU recordPacking. For SRW default recordPacking is string. For
140 SRU default recordPacking is string.
142 SRU protocol support for frontend server.
144 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
146 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
148 Added scan for the ZOOM shell (zoomsh).
152 * String Identifers for Schemas (Amendment 5).
153 http://lcweb.loc.gov/z3950/agency/amend/am5.html
154 Old definition for schema
155 Odr_oid *schema; /* OPT */
160 Z_InternationalString *uri;
161 #define Z_Schema_oid 1
162 #define Z_Schema_uri 2
165 * resultCount parameter to Sort Response (Amendment 1).
166 http://lcweb.loc.gov/z3950/agency/amend/am1.html
168 Support for SRW 1.0 over HTTP. This is an optional feature and
169 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
172 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
173 on the same port. SRW SearchRetrieveRequests are mapped
174 to bend_init,bend_search,bend_fetch,bend_close.
176 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
178 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
179 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
181 ZOOM connections are SRW based if schem http is used for hostname
182 in connect, e.g. z = ZOOM_connection_new("http://myserver");
183 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
185 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
186 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
187 distance=n, order=true/false, relation=le, prox unit=word. If
188 n is omitted, distance 1 is used.
190 Fixed problem with C compiler include path in wrong order.
192 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
193 on Solaris. Patch from Ko van der Sloot.
195 New MARC decode API. All new functions operate on a yaz_marc_t
196 handle. The most important new functions are: yaz_marc_create,
197 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
198 decode and destroy respectively. Decoder can produce formats
199 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
200 include/yaz/marcdisp.h.
202 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
203 to UTF-8, UCS-32, wchar_t or Latin-1.
205 * Prototypes for yaz_iconv_-functions moved to separate header
206 include/yaz/yaz-iconv.h.
208 Make a few private functions 'static' in unix.c. This prevents
209 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
211 For ZOOM connection, the options targetImplementation{Id,Name,Version}
212 are set when Init Response is received.
214 New function ZOOM_connection_error_x similar to ZOOM_connection_error
215 but returns diagnostic set as well.
217 New function yaz_strerror which is a portable wrapper for
218 strerror/strerror_r/GetLastMessage.
220 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
221 is returned for MARC. If type is "oai", then OAI MARC is returned.
223 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
228 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
230 Fix bad race conditions on SIGTERM and terminate gracefully in
233 Move retrieval (data1) module to Zebra since nobody seems to be
236 Add GRS-1 render for ZOOM using same format as yaz-client.
240 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
242 Fix broken ESpec handling in data1 module.
244 SGML reader parses comments and makes them part of the data1 tree.
246 Added several type casts so that YAZ compiles as C++ code.
248 ZOOM didn't handle PDU encoding failures properly.
250 Added more Bib-1 diagnostics (approved extensions).
252 GNU configure: better check for iconv.
254 More portable use of accept, getpeername. Check for socklen_t. Use
255 int/size_t if socklen_t is not defined.
259 PQF parser rejects bad queries - including those with extra
260 characters in them. PQF parser used to silently ignore that.
261 Cleaner API for PQF added, which allows you to get detailed
262 error information for bad queries (see yaz/pquery.h).
264 Fixed bug in ZOOM_record_get for type "database".
266 Implemented mini iconv library supporting conversions between
267 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
269 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
273 Fixed ZOOM C record cache so that preferredRecordSyntax and
274 elementSetName is used to check for already fetched records.
278 Added three members in bend_initrequest structure to facilitate
279 character set negotiation.
281 Fixed a bug in frontend server that could cause indefinite
282 loops under rare conditions.
284 Revised character set utilities (charneg.h) so that encoding
285 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
287 For PQF, directive @term <type> sets term type for Scan/Search.
288 Here <type> is general, string, numeric, null. The term type
289 is inherited - just like @attr.
291 New call odr_set_charset that sets character set conversion for
292 international-strings on a ODR stream. Prototype is:
293 int odr_set_charset(ODR o, const char *to, const char *from);
294 The InternationalString is still represented as C string in YAZ
295 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
296 won't). On the protocol level, you can use any encoding.
298 Support for UNIX sockets in ZOOM.
300 Solaris recv sometimes returns errno == ENOENT. It is treated as
301 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
303 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
304 both client and server. Code by Morten Bøgeskov.
308 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
309 that they can be used directly from Visual Basic. You must recompile
310 your windows APP if you're using ZOOM.
312 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
313 Commands "lang" and "charset" sets language and character set respectively.
314 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
315 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
317 Attributes from multiple CCL fields may be OR'ed rather than merged
318 using directive "@field or". Fields are still merged by default -
319 equivalent to "@field merge".
321 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
324 Fixed bug in zget for parameter ExtendedServicesResponse.
330 Added PQF feature: '@attr type=value' may be written as '@type=value'.
332 Client displays USR.1:SearchResult-1 (hits per term).
334 Additional Search Info for search in Generic Frontend Server.
336 Fixed CCL parsing of "field=s".
338 WIN32 installer - using the excellent NSIS software from nullsoft.
340 Fixed CCL parsing of "field = - <number>".
342 Added function yaz_marc_decode that decodes MARC for line mode
343 display or XML (similar to that used by JZKit).
345 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
346 Z39.50. But ISO/ILL was, however.
348 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
349 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
351 http://lcweb.loc.gov/z3950/agency/amend/am2.html
352 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
356 New YAZ client features: Command completion and new commands:
357 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
358 Code provided by Jacob Poulsen.
360 New call oid_trav, that visits all registered OIDs via callback.
362 Function ZOOM_record_get now returns const char pointer rather than
363 void pointer. It saves a lot of type casts.
365 For YAZ client, command "auth" now allows you to set authentication
366 in IdPass style. It is enabled when three tokens are given - order
367 is user, group and password.
369 Fix memory leaks in MARC record handling for ZOOM.
371 New option for YAZ client, -k <kilobytes> that sets
372 maximum record size. Similar to -k option for generic frontend
373 server and yaz-ztest.
375 More fixes for scan. Non-zero stepSize handled. OID's fixes.
377 Prefix query parser reports "fail" when bad attribute set is given.
379 Fix in MARC decoder. Proximity logging. Fix for attribute set
380 in scan handler for server. Patches by Shigeru Ishida.
382 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
385 Configure option --with-openssl=<dir> now works when a directory is
386 specified. Patch provided by Morten Bøgeskov.
388 New option for YAZ client, -u <auth>, that sets authentication.
390 ZOOM fix: error information was sometimes "missing", since error
391 was cleared/reset too when it shouldn't.
393 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
397 Scan for ZOOM API. New object ZOOM_scanset. New functions
398 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
399 ZOOM_scanset_destroy.
401 New ZOOM function, ZOOM_connection_last_event, that returns type
402 of last event (such as "receive data", "send data", "apdu received",
405 New ZOOM option, schema, that specifies schema for retrieval.
407 New CCL feature. Qualifiers can be aliases for one or more
408 other qualifiers (if more than one is given, OR is used).
410 ZOOM uses named result sets if target supports it.
412 Two new YAZ client commands: . (dot, which sources a script of YAZ
413 client commands), and ! (to execute shell command.). Implemented
416 Working on Debian packages.
420 YAZ client enables named result sets only if target supports it.
422 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
424 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
425 with key="host" to get same result.
427 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
428 Function Z3950_resultset_record(s) returns references to records
429 "owned" by resultset. To become owner use Z3950_record_clone.
431 Function z_ext_record handles Extended Services. Thanks to
436 CCL Parser fix: ignore token comma when dealing with and-lists.
438 Documentation updates for COMSTACK.
440 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
441 Changed prototype Z3950_records. For some functions, int parameters
442 were changed to size_t.
444 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
447 New MARC decode/display function, marc_display_exl, which properly rejects
448 non-ISO2709 records. YAZ client uses it.
452 Fix bug: local attribute set wasn't set correctly in PQF strings.
456 * Old Z39.50 codecs no longer supported.
458 Added ZOOM C binding. See http://zoom.z3950.org/
460 Renamed states for COMSTACKs to avoid confusion with events.
462 Implemented cs_look and proper cs_rcvconnect.
464 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
466 Configure detects POSIX threads on OpenBSD.
468 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
469 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
471 When error is returned from present handler, non-surrogate diagnostic
472 is returned in present response (and fetch handler is no longer called).
474 * Minor adjustments to pquery parser (PQF). Token characters may be
475 escaped by using backslash (C-style).
477 PQF parser allows string attribute values to be specified. For @attr,
478 non-numeric characters after the equal-sign are treated as strings
479 (e.g. @attr 9=title).
481 CCL trunction character may be defined (@truncation in file)
483 * function zget_ExtendedServicesRequest sets waitAction to
484 waitIfPossible (was wait).
486 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
489 CCL operator names may be set in field definition files (CCL_bibset).
490 See ccl/bib1 for an example.
492 Fixes in ASN.1 compiler for C++ compatibility.
494 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
495 and "op_or" to avoid conflict with C++.
497 Fixed problem with GNU readline detection on Redhat 7.0.
499 Added step-size for Scan backend handler.
501 Fixed bug that made the frontend server crash when no attribute
502 set was specified for scan.
504 Front-end server automatically switches to original working directory
505 when installed as an NT service. Previously -w had to be specified to
508 Added extended attributes for retrieval module (data1), so that data1
509 records carry d1_readXML/SGML attributes. d1_read also supports
510 null-data rules ( <tag/>)
512 On UNIX when POSIX threads are available, a separate library libyazthread
513 is created. Programmers should link with that library and the yaz library
514 when using threads. The reason for the split was that some applications
515 on Linux, such as Apache, doesn't work well when using shared objects that
518 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
519 (or any frontend server) in SSL mode by specifying ssl: followed by
520 address. Only tested on UNIX.
522 Added feature for CCL module. Virtual structure s=al or s=ol generates
523 and-list and or-list respectively instead of phrase search.
527 * Added prefix "yaz_" for the functions log_init.., log_file.. and
528 log_mask_str. This was done to avoid name conflicts with other libraries
529 (such as other PHP extensions).
531 Added raw OID member for preferred record syntax (request_format_raw)
532 and returned record syntax (output_format_raw) for backend fetch method.
534 Config file yaz-config now accepts options so that it returns specific
535 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
537 Shared library support for UNIX using GNU libtool.
539 * Modified backend interface. Request/Response struct's replaced by
540 one read/write C struct. For example bend_fetchrequest and
541 bend_fetchresult have been replaced by single bend_fetch_rr struct.
542 Every handler - even search has to be registered in bend_init
543 handler. This means that the YAZ library no longer refers to
544 external functions and it makes it possible to make the whole
545 thing a single DLL/SO.
547 Added Segment handler for backend server.
549 Added Zmbol/Zebra administrative functions to YAZ client.
551 Threaded frontend server on UNIX (when POSIX Threads are available).
552 Starting the server with option -T enables multi-threading.
556 Added configure option --enable-comp/disable-comp to control use
557 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
558 located in sub directory asn.
560 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
561 in ${exec_prefix}/bin along with the other programs yaz-client and
564 GNU automake used to maintain makefiles.
568 Changed retrieval module so that we can load records with no abstract
569 syntax defined. Tagpaths in these records are fully composed of string
572 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
576 On UNIX, the generated makefile now supports a proper 'make install'.
577 The prefix can be set via GNU configure to set the install location
578 (default is /usr/local).
580 * YAZ programs client and ztest were renamed to yaz-client and
581 yaz-ztest to avoid conflicts when users install YAZ in "standard"
582 locations, such as /usr/bin,/usr/local/bin,etc.
584 * YAZ Header files were moved from include to include/yaz. YAZ Header
585 files are referred to as include <yaz/log.h> rather than <log.h>.
586 The YAZ include path (-I ..) is therefore the same as before. Programmers
587 should update their #include statements or use -Ipath/include/yaz
588 instead. The main motivation for doing this change is that YAZ header files
589 can be installed in "standard" locations /usr/include,/usr/local/include
590 without introducing conflicts, since ALL YAZ header files are stored
591 in subdirectory yaz (under /usr/include for example).
593 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
594 rather than project/workspace files. We switched because project files
595 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
598 Changed name of logging function, logf, to yaz_log, to prevent name
599 clash with some math-log functions. The YAZ header log.h defines logf
600 to yaz_log (#define) so there should be no incompatibilities by this
603 Added bend_start/bend_stop handlers for server. These handler are
604 called on start/stop of server. For windows they are called whenever
605 a service is started/stopped.
607 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
608 a fairly small ASN.1 compiler written in Tcl. The compiler is located
609 in util/yc.tcl. The auto-generated C code structures are, in a few
610 cases, incompatible with the old decoders. There are differences in the
611 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
612 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
613 The preprocessor variable ASN_COMPILED is defined when the compiled
614 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
615 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
616 wish to use the old encoders/decoders you can specify --disable-yc
619 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
620 version so that it supports both new - and old version of DB Update
622 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
623 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
624 change. The name parameter can be set to 0 in which no name is specified
625 for the construction. The macros odr_implicit and odr_explicit sets name
626 parameter to zero for the construction involved. New macros
627 odr_implicit_tag and odr_explicit_tag are similar to the others,
628 except that a name parameter is added. For programmers' that don't use
629 ODR they probably only need to change the call to z_APDU and z_External.
631 Added access control facility by interfacing the TCP wrapper library.
632 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
633 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
634 name of the daemon and enables the access control as specified in
635 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
637 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
638 den Dool <H.M.vdnDool@kub.nl>.
640 Added reference ID parameter to most functions in server API - refer
641 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
643 Changed name of ccl library to libccl.a (was ccl.a).
645 Fixed bug in decoder for Explain (Category TargetInfo).
647 Added support for GNU readline in client. Thanks to Jacob Poulsen
648 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
650 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
651 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
652 IMPLEMENTATION! This change was made to the development version before
653 the ZIG decided to retract the amendment. If any users MUST be
654 compatible with the original Update definition, PLEASE CONTACT US, and
655 we will include a separate definition corresponding to the old Update
656 ES. Note that because of the change to the ASN.1 of the
657 TaskPackageRecordStructure we cannot define a single structure that
658 will support both versions.
660 * Added const modifier to buffer parameter for some ODR/BER encoding
661 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
662 completeWAIS, odr_dumpBER.
664 Fixed bug in client.c which caused a crash when a scanResponse didn't
665 contain positionOfTerm.
667 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
668 * will cause an error in a client if a non-YAZ target sends both a
669 * list of Scan entries and non-surrogate diagnostics.
671 Retrieval module enhancements. Tag sets may be typed in the reference
672 to it. From the .abs-file the "tagset" directive takes a third optional
673 integer type for the tag set referenced. From a .tag-file the "include"
674 directive takes a third optional type as well. The old "type" directive
675 in the tag set itself is still recognized but acts as the default type
678 Backend interface change. Individual Scan terms returned from bend_scan
679 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
680 in include/backend.h.
682 Retrieval module enhancements. Multiple tag sets and attribute sets may
683 be specified in abstract syntax specs. Revised the error/warning for
684 logging messages reported by the retrieval module when reading the
687 Object Identifier system (oid_..) changed. The API is backwards
688 compatible but the oid-routines now allocates new OID's when needed.
689 Raw OID's may be specified in oid_getvalbyname.
691 YAZ now uses GNU configure to generate Makefile(s).
693 * Minor changes in some of the member names of DeleteResultSetRequest and
694 DeleteResultSetResponse. See include/proto.h.
696 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
697 and added member 'languages' in TargetInfo (which was missing).
699 Changed the way attribute sets are handled in the retrieval
700 module. These are now cached, just like the abstract syntaxes
703 Changed YAZ so that it links with compiled ASN.1.
705 Added Explain-schema definitions and mapping routines. The following
706 Explain categories have been implemented: AttributeDetails,
707 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
709 Fixed minor bug in Windows version of Server Library.
711 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
713 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
715 Added EXTERNAL: UNIverse Resource Report (non-standard).
717 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
718 ENUMERATED and SET OF.
720 * Added 'const' to some of the char pointer arguments for the
721 functions, data1_read_node, data1_getelementbytagname,
722 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
725 Fixed bug in data1_insert_taggeddata - the last_child member of
726 parent wasn't initialised.
728 * Changed data1_read_record and data1_read_node so that the supplied
729 "SGML"-buffer is read-only. In particular the resulting data1 - tree
730 doesn't refer to any parts of the "SGML"-buffer.
732 Fixed bug in server library (Windows version of statserv_remove).
734 * Changed code so that it compiles as C++. The type definition
735 of Odr_fun which is a member of Odr_arm was changed. The result is,
736 that an explicit typecast is needed for the fun pointer when
737 using Odr_arm - as in:
738 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
740 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
742 Implemented the new structured date and time definition as approved
743 by the ZIG. Added schemaId element to the specificTag in Espec-1
744 (also approved at the last ZIG). Thanks to RVDM.
746 Added some Object identifiers (RVDM).
748 Changed the Update Extended Service (RVDM).
750 Added command "refid" to client which specifies referenceId for
751 the following requests.
753 Implemented extended service handling for server. See ztest.c
754 for an example as well as backend.h. New handlers are registerd
757 * Changed interface for sort in server.
759 Added new members to statserv_options_block. It allows a server
760 to read options from another source than just the command line. Thanks
761 to Charles Woodfield.
763 * Changed definition of Z_Triple in file prt-grs.h - member boolean
764 renamed to zboolean. Some C++ compilers complained about the name.
766 Minor changes to gils.abs. Added index 's' (sort) on title
767 and date/time-last-modified.
771 Fixed bug in server library regarding inetd mode (-i). This bug
772 was introduced by release 1.4.
776 Added sort facility in client and backend server interface.
778 Fixed problem with dependencies in Makefile(s).
780 Fixed bugs for encoders/decoders of extended services and
783 Implemented sub-tree feature for schemas. Sub-trees are
784 referenced in *.abs-files. See explain.abs for an example
785 of the use of this feature.
787 Modified bib1.att; local attributes for ANY didn't include
788 ANY itself (only affects use of the retrieval module).
790 Fixed bug in plain SGML reader in function data1_read_node:
791 tags with prefix "var" was incorrectly interpreted as variants.
793 Added feature "sub-schemas" to enable references to - and definitions
794 of - group of elements.
796 * Removed member parent from type data1_element (in data1.h).
798 Implemented function odr_nullval() that returns the value of
801 * Removed member num_children from data1_node (in data1.h).
803 Made NT service interface part of the server library. The
804 function statserv_main uses the NT service when required and
805 calls the statserv_start / statserv_close routines.
807 Routine zget_SearchRequest and zget_PresentRequest fills
808 resultSetName/Id member with "default" instead of "Default".
810 Fixed memory leak in server. Request queue member wasn't freed.
812 Fixed nmem_exit so that memory is freed.
816 Revised the CCL parser utility to be thread safe.
818 Added function, oid_ent_to_oid, to replace the function
819 oid_getoidbyent, which is not thread safe.
821 * Added nmem_init and nmem_exit to initialize and release
822 NMEM resources. Function nmem_init should be called once in the
823 initial thread before NMEM/ODR is used. statserv.c and client.c
824 have been changed accordingly. The change was necessary to make
825 NMEM thread safe. The NMEM memory pool is shared amongst threads
826 in a process. Unix-based applications will still work fine without
829 Added NT Services interface for the the Z39.50 (statserv) Server.
830 Refer to the ztest.c source on the usage.
832 Windows 95/NT port using MSVC5.0. Project files are included in the
835 * Defined new 'global' handle for the retrieval (data1) system. The
836 new handled, data1_handle, describes the state of the data1 system.
837 This handle is passed as first argument to virtually all
838 data1 related routines. The functions data1_create and data1_destroy
839 creates and destroys a data1 handle respectively.
841 Added ODR encode stream member to all backend request structures
842 init, search, scan etc. This stream should be used to allocate all
843 memory used for the response when thread safe operation is needed.
845 Changed the comstack utility, cs_addstr, to be thread safe. The
846 returned hostname string returned by the function is now part the
849 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
850 function. The cs_straddr takes a COMSTACK handle as argument, so this
851 function must be used after cs_create and before bind/connect.
852 This function is thread safe.
854 Moved test server to 'ztest' directory - generic server code still
855 in 'server' directory.
857 Made prefix query (pquery.c) utility thread safe.
859 Added new function modifier YAZ_EXPORT to 'export' public DLL
860 functions when using windows (see include/yconfig.h).
862 Added definitions to the OID database (util/oid.c) (RVDM).
864 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
866 Added call to ccl_rpn_delete in client program.
868 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
869 release of RPN structure.
871 Added support for C++, headers uses extern "C" for public definitions.
872 With input from RVDM.
874 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
875 Thanks to Ronald van der Meer (RVDM).
877 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
879 Added support for private extensions to the OID database
880 (oid_setprivateoids()). Thanks to RVDM.
882 Added optional, physical ANY (key replication)
884 Fixed null-reference problem in GRS-1 output filter.
886 Proximity operator added to Prefix Query Format (PQF).
888 In test client command "base" accepts multiple databases.
890 Fixed bug in cs_close stack that caused trouble with WINSOCK.
894 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
896 Smallish bug-fixes in the new encoders/decoders (explain).
898 Bug fixed in DeleteRequest.
900 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
902 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
904 Added SOIF syntax (using private OID for now) to retrieval module and client.
906 Added Update extended service.
908 Added SearchResult-1 additional info structure.
910 Added optional CCL (ISO8777) interpreter as separate module. Available
913 --- 1.2 1996/6/10 (1st anniversary release)
915 Added Summary record syntax. Lightly tested.
917 Added OPAC record syntax. Untested.
919 Added ResourceReport service encoders/decoders. Untested.
921 Fixed bug in z_Unit - wrong tagging on unitSystem.
923 Fixed bug in the DiagRecs decoder.
925 Added options for max PDU size and session timeout to frontend-server.
927 Added documentation of query-language parsers and other supporting utilities.
929 [frontend-server] Added Attribute set to the bend_scanrequest API.
931 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
932 surrogate diagnostics were generated.
934 [retrieval] Allow multiple local values for attribute.
936 [retrieval] Allow multiple attributes per element in .abs files. index type.
938 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
942 Minor changes, mostly specific to Zebra's requirements (retrieval)
946 Repaired bug in frontend server when running multiple listening
947 endpoints in dynamic mode.
949 z_External() now won't break if a known, ASN.1 value comes encapsulated
950 in an octet-string. The value will pass through unmodified in an Odr_oct.
952 Added a bit of code to the demo client to decode & display
953 ASN.1-structured records represented in the octet-aligned branch of
954 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
956 Added z_ext_getentbyref() to the ASN module. Doc updated.
958 * Completed the SCAN definition in the ASN module. This may break SCAN
959 code based on older YAZ-versions at compile-time. The fix is easy -
962 * Added 'displayTerm' and OtherInformation to the TermInfo structure
963 under the SCAN definition. Remember to initialize this, server-people.
965 Comstack should now support the WAIS protocol in TCP/IP mode. Note
966 that this does not extend to ODR and ASN.
968 Comstack allows insertion of established socket (primarily for
969 inetd-operation of servers). Doc updated.
971 Front-end server can now start from the inetd in TCP mode. Doc
978 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
979 the rank and record number.
981 Adjustments to the frontend server.
983 Fixed diagnostic BER dumper. It ignored the file argument.
987 Various changes to retrieval module.
989 Changed the union discriminators of the protocol files from enums to
990 ints paired with #defines.
992 *Changed oident.class to oident.oclass to avoid a reserved word in C++
995 *Changed operator in the RPN structure to 'roperator', again to avoid a
998 Fixed problems in Explain decoders/encoders.
1000 --- 1.0pl2 1995/12/6
1002 Memory bug in log module fixed.
1004 --- 1.0pl1 1995/12/5
1006 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1008 Bug in Explain DatabaseInfo module fixed.
1010 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1014 The shift to v1.0 signals that we now consider the *core* functionality
1015 of YAZ reasonably stable (the core being more or less equivalent to
1016 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1017 tested (Explain not at all - though that will happen soonish).
1019 Minor changes to code to support Windows port.
1021 Various minor changes after we're getting to use GRS-1 & co. more.
1023 Added Espec-1 format.
1025 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1026 of the protocol and it cannot be selected when encoding (maps into 'string'
1027 when decoding). Needed to talk to some servers.
1029 Demo client can request simple element set names.
1031 Added Diagnostic Format encoders/decoders.
1033 Added simple Close handling to frontend server (no hooks for resource
1034 reporting yet), and demonstration client.
1036 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1038 --- 1.0b3 1995/08/24
1040 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1041 handled incorrectly when records were requested in the searchResponse. This
1042 will only affect you if you use the frontend-server.
1044 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1045 Test-client will ask for and print GRS1. Ztest will return dummy records
1048 Added Explain encoders/decoders to the service-level API. Untested.
1050 Added Extended Services: Item Order encoders and decoders to the Service-
1051 level API. Untested. We could use a recent copy of the pertinent bits
1052 of the ILL protocol to add those bits.
1054 Added diagnostic format 1 encoders/decoders to the service-level API.
1057 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1058 odr_cons.c, which causes a more correct output.
1060 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1061 was always set to 0 when no records were requested in the searchRequest.
1063 * Added better external-handling. This shouldn't harm old code that
1064 *encodes* externals. It can break code that looks for a
1065 'single-ASN1-type' representation, since those types that are known
1066 are now decoded immediately. Look at the SUTRS sample code in
1067 seshigh.c and client.c. Documentation updated.
1069 Handling of structured records in bend_fetchresponse. Length -1 marks
1070 structured record, type is deduced from format field.
1072 --- 1.0b2 1995/06/27
1073 Fairly quick maintenance release to add SUTRS support.
1075 Fixed handling of SUTRS records in the demonstration client.
1077 * Added format field to the bend_fetchrequest and bend_fetchresponce
1078 structures of the backend API (frontend server). When the record is
1079 returned, the value of the format field is mapped to an OID. The
1080 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1081 of the record. The special value VAL_NONE in the bend_request means
1082 that no specific format was requested by the client. Documentation
1083 updated accordingly. Test server (ztest) will return a fixed dummy
1084 SUTRS record if your client requests SUTRS.
1086 Documentation updated accordingly.
1088 You can now set external libraries and RANLIB support in the top-level
1092 First public release.