1 Possible compatibility problems with earlier versions marked with '*'.
5 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
6 that features the same UI.
8 Implemented command update0 in YAZ client which is equivalent to
9 update but uses old of Ext Update ASN.1.
11 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
12 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
13 Previously no OID was used for this info.
15 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
16 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
17 returns 'malformed search term' otherwise.
19 SortResponse member resultCount now set to NULL in sort handler of
22 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
25 Add three new utility functions for translating OIDs between various
26 formats -- symbolic name such as "Usmarc", minus-1-terminated int
27 arrays and dotted strings such as "1.2.840.10003.9.5.1":
28 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
29 char *oid_to_dotstring(const int *oid, char *oidbuf);
30 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
32 Reverted modifications for ES Update definition for z_IU0Update
33 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
36 String value attributes for CCL parser.
38 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
39 which their FirstSearch server returns in Init responses, sometimes
40 carrying useful diagnostic information when Init fails. This has the
41 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
42 "z39.50/oclcui.asn", where its definition is somewhat different from
43 what OCLC document on their web-site, as required to interoperate with
46 Support for anonymous authentication in yaz-client. Use the command
49 * Fix the OID of the Index Data-local "admin" Extended Service from
50 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
51 the 1000, which indicates a locally-defined OID, was a mistake.
55 Fix CCL directive @case handling so that it affects string match for
56 both CCL keywords and qualifiers.
58 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
59 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
60 Decoder has been updated with ASN.1 changes as listed in
61 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
62 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
63 z_IUUpdate, remains unchanged.
65 ZOOM_record_get may now return a record in a specific character set.
66 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
67 "from" is the character set of record as returned by target. "to" is
68 the character set to be returned. If omitted, "to" is UTF-8.
70 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
72 New ODR utility, odr_getelement, which returns name of element for
73 which encoding/decoding failed.
75 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
76 in cases where a required element was omitted.
78 Bug fix: some MARC8 sequences were not converted.
80 New ZOOM option "step" which specifies number of records to be
81 retrieved in one chunk. Used in conjunction with "start" and "count".
83 SRW support for yaz-client. Use scheme http: to use it, e.g.
86 yaz-client no longer does (un)intelligent character set conversions
87 by default. Can be enabled with charset and marc_charset commands.
89 xmalloc trace fix for 64-bit systems such as DEC alpha.
91 Solaris 2.6 compile fix.
93 New function, cql_strerror() translates SRW error codes, as returned
94 by cql_transform_error(), into human-readable English strings. Used
95 in yaz-client diagnostics when appropriate.
97 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
98 converts it into a type-1 query which is sent to the server. This
99 makes CQL available for use with all Z-servers, as opposed to the tiny
100 minority that can handle CQL queries themselves.
104 New Debian package layout similar to the Redhat Package layout.
106 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
107 and search result respectively.
111 Redhat package is now several packages: libyaz (runtime libraries),
112 libyaz-devel (development and documentation, and yaz (utility programs).
113 Package spec file by Morten Bøgeskov.
115 New member 'schema' in struct bend_fetch_rr which the name of requested
116 schema (SRW/SRU) for record (or NULL if none was given). The fetch
117 handler MAY set this to reflect the schema of the returned record.
119 New member 'display_term' in struct scan_entry. GFS now sets member entries
120 and allocates scan entries to be filled by user scan handler. In previous
121 version, entries member was allocated by the scan handler. That still works,
122 but the GFS will ignore member display_term - assuming it was NOT set by
123 the handler. The fact that the GFS now allocates the entries both allows
124 for new members and makes a scan handler easier to write.
126 Fix CQL lex buffer overflow.
128 SRW/SRU recordPacking. For SRW default recordPacking is string. For
129 SRU default recordPacking is string.
131 SRU protocol support for frontend server.
133 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
135 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
137 Added scan for the ZOOM shell (zoomsh).
141 * String Identifers for Schemas (Amendment 5).
142 http://lcweb.loc.gov/z3950/agency/amend/am5.html
143 Old definition for schema
144 Odr_oid *schema; /* OPT */
149 Z_InternationalString *uri;
150 #define Z_Schema_oid 1
151 #define Z_Schema_uri 2
154 * resultCount parameter to Sort Response (Amendment 1).
155 http://lcweb.loc.gov/z3950/agency/amend/am1.html
157 Support for SRW 1.0 over HTTP. This is an optional feature and
158 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
161 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
162 on the same port. SRW SearchRetrieveRequests are mapped
163 to bend_init,bend_search,bend_fetch,bend_close.
165 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
167 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
168 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
170 ZOOM connections are SRW based if schem http is used for hostname
171 in connect, e.g. z = ZOOM_connection_new("http://myserver");
172 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
174 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
175 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
176 distance=n, order=true/false, relation=le, prox unit=word. If
177 n is omitted, distance 1 is used.
179 Fixed problem with C compiler include path in wrong order.
181 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
182 on Solaris. Patch from Ko van der Sloot.
184 New MARC decode API. All new functions operate on a yaz_marc_t
185 handle. The most important new functions are: yaz_marc_create,
186 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
187 decode and destroy respectively. Decoder can produce formats
188 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
189 include/yaz/marcdisp.h.
191 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
192 to UTF-8, UCS-32, wchar_t or Latin-1.
194 * Prototypes for yaz_iconv_-functions moved to separate header
195 include/yaz/yaz-iconv.h.
197 Make a few private functions 'static' in unix.c. This prevents
198 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
200 For ZOOM connection, the options targetImplementation{Id,Name,Version}
201 are set when Init Response is received.
203 New function ZOOM_connection_error_x similar to ZOOM_connection_error
204 but returns diagnostic set as well.
206 New function yaz_strerror which is a portable wrapper for
207 strerror/strerror_r/GetLastMessage.
209 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
210 is returned for MARC. If type is "oai", then OAI MARC is returned.
212 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
217 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
219 Fix bad race conditions on SIGTERM and terminate gracefully in
222 Move retrieval (data1) module to Zebra since nobody seems to be
225 Add GRS-1 render for ZOOM using same format as yaz-client.
229 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
231 Fix broken ESpec handling in data1 module.
233 SGML reader parses comments and makes them part of the data1 tree.
235 Added several type casts so that YAZ compiles as C++ code.
237 ZOOM didn't handle PDU encoding failures properly.
239 Added more Bib-1 diagnostics (approved extensions).
241 GNU configure: better check for iconv.
243 More portable use of accept, getpeername. Check for socklen_t. Use
244 int/size_t if socklen_t is not defined.
248 PQF parser rejects bad queries - including those with extra
249 characters in them. PQF parser used to silently ignore that.
250 Cleaner API for PQF added, which allows you to get detailed
251 error information for bad queries (see yaz/pquery.h).
253 Fixed bug in ZOOM_record_get for type "database".
255 Implemented mini iconv library supporting conversions between
256 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
258 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
262 Fixed ZOOM C record cache so that preferredRecordSyntax and
263 elementSetName is used to check for already fetched records.
267 Added three members in bend_initrequest structure to facilitate
268 character set negotiation.
270 Fixed a bug in frontend server that could cause indefinite
271 loops under rare conditions.
273 Revised character set utilities (charneg.h) so that encoding
274 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
276 For PQF, directive @term <type> sets term type for Scan/Search.
277 Here <type> is general, string, numeric, null. The term type
278 is inherited - just like @attr.
280 New call odr_set_charset that sets character set conversion for
281 international-strings on a ODR stream. Prototype is:
282 int odr_set_charset(ODR o, const char *to, const char *from);
283 The InternationalString is still represented as C string in YAZ
284 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
285 won't). On the protocol level, you can use any encoding.
287 Support for UNIX sockets in ZOOM.
289 Solaris recv sometimes returns errno == ENOENT. It is treated as
290 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
292 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
293 both client and server. Code by Morten Bøgeskov.
297 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
298 that they can be used directly from Visual Basic. You must recompile
299 your windows APP if you're using ZOOM.
301 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
302 Commands "lang" and "charset" sets language and character set respectively.
303 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
304 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
306 Attributes from multiple CCL fields may be OR'ed rather than merged
307 using directive "@field or". Fields are still merged by default -
308 equivalent to "@field merge".
310 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
313 Fixed bug in zget for parameter ExtendedServicesResponse.
319 Added PQF feature: '@attr type=value' may be written as '@type=value'.
321 Client displays USR.1:SearchResult-1 (hits per term).
323 Additional Search Info for search in Generic Frontend Server.
325 Fixed CCL parsing of "field=s".
327 WIN32 installer - using the excellent NSIS software from nullsoft.
329 Fixed CCL parsing of "field = - <number>".
331 Added function yaz_marc_decode that decodes MARC for line mode
332 display or XML (similar to that used by JZKit).
334 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
335 Z39.50. But ISO/ILL was, however.
337 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
338 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
340 http://lcweb.loc.gov/z3950/agency/amend/am2.html
341 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
345 New YAZ client features: Command completion and new commands:
346 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
347 Code provided by Jacob Poulsen.
349 New call oid_trav, that visits all registered OIDs via callback.
351 Function ZOOM_record_get now returns const char pointer rather than
352 void pointer. It saves a lot of type casts.
354 For YAZ client, command "auth" now allows you to set authentication
355 in IdPass style. It is enabled when three tokens are given - order
356 is user, group and password.
358 Fix memory leaks in MARC record handling for ZOOM.
360 New option for YAZ client, -k <kilobytes> that sets
361 maximum record size. Similar to -k option for generic frontend
362 server and yaz-ztest.
364 More fixes for scan. Non-zero stepSize handled. OID's fixes.
366 Prefix query parser reports "fail" when bad attribute set is given.
368 Fix in MARC decoder. Proximity logging. Fix for attribute set
369 in scan handler for server. Patches by Shigeru Ishida.
371 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
374 Configure option --with-openssl=<dir> now works when a directory is
375 specified. Patch provided by Morten Bøgeskov.
377 New option for YAZ client, -u <auth>, that sets authentication.
379 ZOOM fix: error information was sometimes "missing", since error
380 was cleared/reset too when it shouldn't.
382 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
386 Scan for ZOOM API. New object ZOOM_scanset. New functions
387 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
388 ZOOM_scanset_destroy.
390 New ZOOM function, ZOOM_connection_last_event, that returns type
391 of last event (such as "receive data", "send data", "apdu received",
394 New ZOOM option, schema, that specifies schema for retrieval.
396 New CCL feature. Qualifiers can be aliases for one or more
397 other qualifiers (if more than one is given, OR is used).
399 ZOOM uses named result sets if target supports it.
401 Two new YAZ client commands: . (dot, which sources a script of YAZ
402 client commands), and ! (to execute shell command.). Implemented
405 Working on Debian packages.
409 YAZ client enables named result sets only if target supports it.
411 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
413 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
414 with key="host" to get same result.
416 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
417 Function Z3950_resultset_record(s) returns references to records
418 "owned" by resultset. To become owner use Z3950_record_clone.
420 Function z_ext_record handles Extended Services. Thanks to
425 CCL Parser fix: ignore token comma when dealing with and-lists.
427 Documentation updates for COMSTACK.
429 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
430 Changed prototype Z3950_records. For some functions, int parameters
431 were changed to size_t.
433 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
436 New MARC decode/display function, marc_display_exl, which properly rejects
437 non-ISO2709 records. YAZ client uses it.
441 Fix bug: local attribute set wasn't set correctly in PQF strings.
445 * Old Z39.50 codecs no longer supported.
447 Added ZOOM C binding. See http://zoom.z3950.org/
449 Renamed states for COMSTACKs to avoid confusion with events.
451 Implemented cs_look and proper cs_rcvconnect.
453 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
455 Configure detects POSIX threads on OpenBSD.
457 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
458 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
460 When error is returned from present handler, non-surrogate diagnostic
461 is returned in present response (and fetch handler is no longer called).
463 * Minor adjustments to pquery parser (PQF). Token characters may be
464 escaped by using backslash (C-style).
466 PQF parser allows string attribute values to be specified. For @attr,
467 non-numeric characters after the equal-sign are treated as strings
468 (e.g. @attr 9=title).
470 CCL trunction character may be defined (@truncation in file)
472 * function zget_ExtendedServicesRequest sets waitAction to
473 waitIfPossible (was wait).
475 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
478 CCL operator names may be set in field definition files (CCL_bibset).
479 See ccl/bib1 for an example.
481 Fixes in ASN.1 compiler for C++ compatibility.
483 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
484 and "op_or" to avoid conflict with C++.
486 Fixed problem with GNU readline detection on Redhat 7.0.
488 Added step-size for Scan backend handler.
490 Fixed bug that made the frontend server crash when no attribute
491 set was specified for scan.
493 Front-end server automatically switches to original working directory
494 when installed as an NT service. Previously -w had to be specified to
497 Added extended attributes for retrieval module (data1), so that data1
498 records carry d1_readXML/SGML attributes. d1_read also supports
499 null-data rules ( <tag/>)
501 On UNIX when POSIX threads are available, a separate library libyazthread
502 is created. Programmers should link with that library and the yaz library
503 when using threads. The reason for the split was that some applications
504 on Linux, such as Apache, doesn't work well when using shared objects that
507 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
508 (or any frontend server) in SSL mode by specifying ssl: followed by
509 address. Only tested on UNIX.
511 Added feature for CCL module. Virtual structure s=al or s=ol generates
512 and-list and or-list respectively instead of phrase search.
516 * Added prefix "yaz_" for the functions log_init.., log_file.. and
517 log_mask_str. This was done to avoid name conflicts with other libraries
518 (such as other PHP extensions).
520 Added raw OID member for preferred record syntax (request_format_raw)
521 and returned record syntax (output_format_raw) for backend fetch method.
523 Config file yaz-config now accepts options so that it returns specific
524 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
526 Shared library support for UNIX using GNU libtool.
528 * Modified backend interface. Request/Response struct's replaced by
529 one read/write C struct. For example bend_fetchrequest and
530 bend_fetchresult have been replaced by single bend_fetch_rr struct.
531 Every handler - even search has to be registered in bend_init
532 handler. This means that the YAZ library no longer refers to
533 external functions and it makes it possible to make the whole
534 thing a single DLL/SO.
536 Added Segment handler for backend server.
538 Added Zmbol/Zebra administrative functions to YAZ client.
540 Threaded frontend server on UNIX (when POSIX Threads are available).
541 Starting the server with option -T enables multi-threading.
545 Added configure option --enable-comp/disable-comp to control use
546 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
547 located in sub directory asn.
549 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
550 in ${exec_prefix}/bin along with the other programs yaz-client and
553 GNU automake used to maintain makefiles.
557 Changed retrieval module so that we can load records with no abstract
558 syntax defined. Tagpaths in these records are fully composed of string
561 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
565 On UNIX, the generated makefile now supports a proper 'make install'.
566 The prefix can be set via GNU configure to set the install location
567 (default is /usr/local).
569 * YAZ programs client and ztest were renamed to yaz-client and
570 yaz-ztest to avoid conflicts when users install YAZ in "standard"
571 locations, such as /usr/bin,/usr/local/bin,etc.
573 * YAZ Header files were moved from include to include/yaz. YAZ Header
574 files are referred to as include <yaz/log.h> rather than <log.h>.
575 The YAZ include path (-I ..) is therefore the same as before. Programmers
576 should update their #include statements or use -Ipath/include/yaz
577 instead. The main motivation for doing this change is that YAZ header files
578 can be installed in "standard" locations /usr/include,/usr/local/include
579 without introducing conflicts, since ALL YAZ header files are stored
580 in subdirectory yaz (under /usr/include for example).
582 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
583 rather than project/workspace files. We switched because project files
584 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
587 Changed name of logging function, logf, to yaz_log, to prevent name
588 clash with some math-log functions. The YAZ header log.h defines logf
589 to yaz_log (#define) so there should be no incompatibilities by this
592 Added bend_start/bend_stop handlers for server. These handler are
593 called on start/stop of server. For windows they are called whenever
594 a service is started/stopped.
596 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
597 a fairly small ASN.1 compiler written in Tcl. The compiler is located
598 in util/yc.tcl. The auto-generated C code structures are, in a few
599 cases, incompatible with the old decoders. There are differences in the
600 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
601 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
602 The preprocessor variable ASN_COMPILED is defined when the compiled
603 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
604 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
605 wish to use the old encoders/decoders you can specify --disable-yc
608 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
609 version so that it supports both new - and old version of DB Update
611 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
612 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
613 change. The name parameter can be set to 0 in which no name is specified
614 for the construction. The macros odr_implicit and odr_explicit sets name
615 parameter to zero for the construction involved. New macros
616 odr_implicit_tag and odr_explicit_tag are similar to the others,
617 except that a name parameter is added. For programmers' that don't use
618 ODR they probably only need to change the call to z_APDU and z_External.
620 Added access control facility by interfacing the TCP wrapper library.
621 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
622 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
623 name of the daemon and enables the access control as specified in
624 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
626 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
627 den Dool <H.M.vdnDool@kub.nl>.
629 Added reference ID parameter to most functions in server API - refer
630 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
632 Changed name of ccl library to libccl.a (was ccl.a).
634 Fixed bug in decoder for Explain (Category TargetInfo).
636 Added support for GNU readline in client. Thanks to Jacob Poulsen
637 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
639 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
640 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
641 IMPLEMENTATION! This change was made to the development version before
642 the ZIG decided to retract the amendment. If any users MUST be
643 compatible with the original Update definition, PLEASE CONTACT US, and
644 we will include a separate definition corresponding to the old Update
645 ES. Note that because of the change to the ASN.1 of the
646 TaskPackageRecordStructure we cannot define a single structure that
647 will support both versions.
649 * Added const modifier to buffer parameter for some ODR/BER encoding
650 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
651 completeWAIS, odr_dumpBER.
653 Fixed bug in client.c which caused a crash when a scanResponse didn't
654 contain positionOfTerm.
656 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
657 * will cause an error in a client if a non-YAZ target sends both a
658 * list of Scan entries and non-surrogate diagnostics.
660 Retrieval module enhancements. Tag sets may be typed in the reference
661 to it. From the .abs-file the "tagset" directive takes a third optional
662 integer type for the tag set referenced. From a .tag-file the "include"
663 directive takes a third optional type as well. The old "type" directive
664 in the tag set itself is still recognized but acts as the default type
667 Backend interface change. Individual Scan terms returned from bend_scan
668 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
669 in include/backend.h.
671 Retrieval module enhancements. Multiple tag sets and attribute sets may
672 be specified in abstract syntax specs. Revised the error/warning for
673 logging messages reported by the retrieval module when reading the
676 Object Identifier system (oid_..) changed. The API is backwards
677 compatible but the oid-routines now allocates new OID's when needed.
678 Raw OID's may be specified in oid_getvalbyname.
680 YAZ now uses GNU configure to generate Makefile(s).
682 * Minor changes in some of the member names of DeleteResultSetRequest and
683 DeleteResultSetResponse. See include/proto.h.
685 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
686 and added member 'languages' in TargetInfo (which was missing).
688 Changed the way attribute sets are handled in the retrieval
689 module. These are now cached, just like the abstract syntaxes
692 Changed YAZ so that it links with compiled ASN.1.
694 Added Explain-schema definitions and mapping routines. The following
695 Explain categories have been implemented: AttributeDetails,
696 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
698 Fixed minor bug in Windows version of Server Library.
700 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
702 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
704 Added EXTERNAL: UNIverse Resource Report (non-standard).
706 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
707 ENUMERATED and SET OF.
709 * Added 'const' to some of the char pointer arguments for the
710 functions, data1_read_node, data1_getelementbytagname,
711 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
714 Fixed bug in data1_insert_taggeddata - the last_child member of
715 parent wasn't initialised.
717 * Changed data1_read_record and data1_read_node so that the supplied
718 "SGML"-buffer is read-only. In particular the resulting data1 - tree
719 doesn't refer to any parts of the "SGML"-buffer.
721 Fixed bug in server library (Windows version of statserv_remove).
723 * Changed code so that it compiles as C++. The type definition
724 of Odr_fun which is a member of Odr_arm was changed. The result is,
725 that an explicit typecast is needed for the fun pointer when
726 using Odr_arm - as in:
727 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
729 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
731 Implemented the new structured date and time definition as approved
732 by the ZIG. Added schemaId element to the specificTag in Espec-1
733 (also approved at the last ZIG). Thanks to RVDM.
735 Added some Object identifiers (RVDM).
737 Changed the Update Extended Service (RVDM).
739 Added command "refid" to client which specifies referenceId for
740 the following requests.
742 Implemented extended service handling for server. See ztest.c
743 for an example as well as backend.h. New handlers are registerd
746 * Changed interface for sort in server.
748 Added new members to statserv_options_block. It allows a server
749 to read options from another source than just the command line. Thanks
750 to Charles Woodfield.
752 * Changed definition of Z_Triple in file prt-grs.h - member boolean
753 renamed to zboolean. Some C++ compilers complained about the name.
755 Minor changes to gils.abs. Added index 's' (sort) on title
756 and date/time-last-modified.
760 Fixed bug in server library regarding inetd mode (-i). This bug
761 was introduced by release 1.4.
765 Added sort facility in client and backend server interface.
767 Fixed problem with dependencies in Makefile(s).
769 Fixed bugs for encoders/decoders of extended services and
772 Implemented sub-tree feature for schemas. Sub-trees are
773 referenced in *.abs-files. See explain.abs for an example
774 of the use of this feature.
776 Modified bib1.att; local attributes for ANY didn't include
777 ANY itself (only affects use of the retrieval module).
779 Fixed bug in plain SGML reader in function data1_read_node:
780 tags with prefix "var" was incorrectly interpreted as variants.
782 Added feature "sub-schemas" to enable references to - and definitions
783 of - group of elements.
785 * Removed member parent from type data1_element (in data1.h).
787 Implemented function odr_nullval() that returns the value of
790 * Removed member num_children from data1_node (in data1.h).
792 Made NT service interface part of the server library. The
793 function statserv_main uses the NT service when required and
794 calls the statserv_start / statserv_close routines.
796 Routine zget_SearchRequest and zget_PresentRequest fills
797 resultSetName/Id member with "default" instead of "Default".
799 Fixed memory leak in server. Request queue member wasn't freed.
801 Fixed nmem_exit so that memory is freed.
805 Revised the CCL parser utility to be thread safe.
807 Added function, oid_ent_to_oid, to replace the function
808 oid_getoidbyent, which is not thread safe.
810 * Added nmem_init and nmem_exit to initialize and release
811 NMEM resources. Function nmem_init should be called once in the
812 initial thread before NMEM/ODR is used. statserv.c and client.c
813 have been changed accordingly. The change was necessary to make
814 NMEM thread safe. The NMEM memory pool is shared amongst threads
815 in a process. Unix-based applications will still work fine without
818 Added NT Services interface for the the Z39.50 (statserv) Server.
819 Refer to the ztest.c source on the usage.
821 Windows 95/NT port using MSVC5.0. Project files are included in the
824 * Defined new 'global' handle for the retrieval (data1) system. The
825 new handled, data1_handle, describes the state of the data1 system.
826 This handle is passed as first argument to virtually all
827 data1 related routines. The functions data1_create and data1_destroy
828 creates and destroys a data1 handle respectively.
830 Added ODR encode stream member to all backend request structures
831 init, search, scan etc. This stream should be used to allocate all
832 memory used for the response when thread safe operation is needed.
834 Changed the comstack utility, cs_addstr, to be thread safe. The
835 returned hostname string returned by the function is now part the
838 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
839 function. The cs_straddr takes a COMSTACK handle as argument, so this
840 function must be used after cs_create and before bind/connect.
841 This function is thread safe.
843 Moved test server to 'ztest' directory - generic server code still
844 in 'server' directory.
846 Made prefix query (pquery.c) utility thread safe.
848 Added new function modifier YAZ_EXPORT to 'export' public DLL
849 functions when using windows (see include/yconfig.h).
851 Added definitions to the OID database (util/oid.c) (RVDM).
853 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
855 Added call to ccl_rpn_delete in client program.
857 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
858 release of RPN structure.
860 Added support for C++, headers uses extern "C" for public definitions.
861 With input from RVDM.
863 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
864 Thanks to Ronald van der Meer (RVDM).
866 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
868 Added support for private extensions to the OID database
869 (oid_setprivateoids()). Thanks to RVDM.
871 Added optional, physical ANY (key replication)
873 Fixed null-reference problem in GRS-1 output filter.
875 Proximity operator added to Prefix Query Format (PQF).
877 In test client command "base" accepts multiple databases.
879 Fixed bug in cs_close stack that caused trouble with WINSOCK.
883 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
885 Smallish bug-fixes in the new encoders/decoders (explain).
887 Bug fixed in DeleteRequest.
889 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
891 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
893 Added SOIF syntax (using private OID for now) to retrieval module and client.
895 Added Update extended service.
897 Added SearchResult-1 additional info structure.
899 Added optional CCL (ISO8777) interpreter as separate module. Available
902 --- 1.2 1996/6/10 (1st anniversary release)
904 Added Summary record syntax. Lightly tested.
906 Added OPAC record syntax. Untested.
908 Added ResourceReport service encoders/decoders. Untested.
910 Fixed bug in z_Unit - wrong tagging on unitSystem.
912 Fixed bug in the DiagRecs decoder.
914 Added options for max PDU size and session timeout to frontend-server.
916 Added documentation of query-language parsers and other supporting utilities.
918 [frontend-server] Added Attribute set to the bend_scanrequest API.
920 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
921 surrogate diagnostics were generated.
923 [retrieval] Allow multiple local values for attribute.
925 [retrieval] Allow multiple attributes per element in .abs files. index type.
927 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
931 Minor changes, mostly specific to Zebra's requirements (retrieval)
935 Repaired bug in frontend server when running multiple listening
936 endpoints in dynamic mode.
938 z_External() now won't break if a known, ASN.1 value comes encapsulated
939 in an octet-string. The value will pass through unmodified in an Odr_oct.
941 Added a bit of code to the demo client to decode & display
942 ASN.1-structured records represented in the octet-aligned branch of
943 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
945 Added z_ext_getentbyref() to the ASN module. Doc updated.
947 * Completed the SCAN definition in the ASN module. This may break SCAN
948 code based on older YAZ-versions at compile-time. The fix is easy -
951 * Added 'displayTerm' and OtherInformation to the TermInfo structure
952 under the SCAN definition. Remember to initialize this, server-people.
954 Comstack should now support the WAIS protocol in TCP/IP mode. Note
955 that this does not extend to ODR and ASN.
957 Comstack allows insertion of established socket (primarily for
958 inetd-operation of servers). Doc updated.
960 Front-end server can now start from the inetd in TCP mode. Doc
967 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
968 the rank and record number.
970 Adjustments to the frontend server.
972 Fixed diagnostic BER dumper. It ignored the file argument.
976 Various changes to retrieval module.
978 Changed the union discriminators of the protocol files from enums to
979 ints paired with #defines.
981 *Changed oident.class to oident.oclass to avoid a reserved word in C++
984 *Changed operator in the RPN structure to 'roperator', again to avoid a
987 Fixed problems in Explain decoders/encoders.
991 Memory bug in log module fixed.
995 Occasional malloc() of 0 bytes fixed in d1_espec.c.
997 Bug in Explain DatabaseInfo module fixed.
999 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1003 The shift to v1.0 signals that we now consider the *core* functionality
1004 of YAZ reasonably stable (the core being more or less equivalent to
1005 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1006 tested (Explain not at all - though that will happen soonish).
1008 Minor changes to code to support Windows port.
1010 Various minor changes after we're getting to use GRS-1 & co. more.
1012 Added Espec-1 format.
1014 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1015 of the protocol and it cannot be selected when encoding (maps into 'string'
1016 when decoding). Needed to talk to some servers.
1018 Demo client can request simple element set names.
1020 Added Diagnostic Format encoders/decoders.
1022 Added simple Close handling to frontend server (no hooks for resource
1023 reporting yet), and demonstration client.
1025 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1027 --- 1.0b3 1995/08/24
1029 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1030 handled incorrectly when records were requested in the searchResponse. This
1031 will only affect you if you use the frontend-server.
1033 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1034 Test-client will ask for and print GRS1. Ztest will return dummy records
1037 Added Explain encoders/decoders to the service-level API. Untested.
1039 Added Extended Services: Item Order encoders and decoders to the Service-
1040 level API. Untested. We could use a recent copy of the pertinent bits
1041 of the ILL protocol to add those bits.
1043 Added diagnostic format 1 encoders/decoders to the service-level API.
1046 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1047 odr_cons.c, which causes a more correct output.
1049 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1050 was always set to 0 when no records were requested in the searchRequest.
1052 * Added better external-handling. This shouldn't harm old code that
1053 *encodes* externals. It can break code that looks for a
1054 'single-ASN1-type' representation, since those types that are known
1055 are now decoded immediately. Look at the SUTRS sample code in
1056 seshigh.c and client.c. Documentation updated.
1058 Handling of structured records in bend_fetchresponse. Length -1 marks
1059 structured record, type is deduced from format field.
1061 --- 1.0b2 1995/06/27
1062 Fairly quick maintenance release to add SUTRS support.
1064 Fixed handling of SUTRS records in the demonstration client.
1066 * Added format field to the bend_fetchrequest and bend_fetchresponce
1067 structures of the backend API (frontend server). When the record is
1068 returned, the value of the format field is mapped to an OID. The
1069 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1070 of the record. The special value VAL_NONE in the bend_request means
1071 that no specific format was requested by the client. Documentation
1072 updated accordingly. Test server (ztest) will return a fixed dummy
1073 SUTRS record if your client requests SUTRS.
1075 Documentation updated accordingly.
1077 You can now set external libraries and RANLIB support in the top-level
1081 First public release.