1 Possible compatibility problems with earlier versions marked with '*'.
3 New ODR utility, odr_getelement, which returns name of element for
4 which encoding/decoding failed.
6 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
7 in cases where a required element was omitted.
9 Bug fix: some MARC8 sequences were not converted.
11 New ZOOM option "step" which specifies number of records to be
12 retrieved in one chunk. Used in conjunction with "start" and "count".
14 SRW support for yaz-client. Use scheme http: to use it, e.g.
17 yaz-client no longer does (un)intelligent character set conversions
18 by default. Can be enabled with charset and marc_charset commands.
20 xmalloc trace fix for 64-bit systems such as DEC alpha.
22 Solaris 2.6 compile fix.
24 New function, cql_strerror() translates SRW error codes, as returned
25 by cql_transform_error(), into human-readable English strings. Used
26 in yaz-client diagnostics when appropriate.
28 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
29 converts it into a type-1 query which is sent to the server. This
30 makes CQL available for use with all Z-servers, as opposed to the tiny
31 minority that can handle CQL queries themselves.
35 New Debian package layout similar to the Redhat Package layout.
37 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
38 and search result respectively.
42 Redhat package is now several packages: libyaz (runtime libraries),
43 libyaz-devel (development and documentation, and yaz (utility programs).
44 Package spec file by Morten Bøgeskov.
46 New member 'schema' in struct bend_fetch_rr which the name of requested
47 schema (SRW/SRU) for record (or NULL if none was given). The fetch
48 handler MAY set this to reflect the schema of the returned record.
50 New member 'display_term' in struct scan_entry. GFS now sets member entries
51 and allocates scan entries to be filled by user scan handler. In previous
52 version, entries member was allocated by the scan handler. That still works,
53 but the GFS will ignore member display_term - assuming it was NOT set by
54 the handler. The fact that the GFS now allocates the entries both allows
55 for new members and makes a scan handler easier to write.
57 Fix CQL lex buffer overflow.
59 SRW/SRU recordPacking. For SRW default recordPacking is string. For
60 SRU default recordPacking is string.
62 SRU protocol support for frontend server.
64 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
66 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
68 Added scan for the ZOOM shell (zoomsh).
72 * String Identifers for Schemas (Amendment 5).
73 http://lcweb.loc.gov/z3950/agency/amend/am5.html
74 Old definition for schema
75 Odr_oid *schema; /* OPT */
80 Z_InternationalString *uri;
81 #define Z_Schema_oid 1
82 #define Z_Schema_uri 2
85 * resultCount parameter to Sort Response (Amendment 1).
86 http://lcweb.loc.gov/z3950/agency/amend/am1.html
88 Support for SRW 1.0 over HTTP. This is an optional feature and
89 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
92 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
93 on the same port. SRW SearchRetrieveRequests are mapped
94 to bend_init,bend_search,bend_fetch,bend_close.
96 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
98 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
99 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
101 ZOOM connections are SRW based if schem http is used for hostname
102 in connect, e.g. z = ZOOM_connection_new("http://myserver");
103 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
105 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
106 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
107 distance=n, order=true/false, relation=le, prox unit=word. If
108 n is omitted, distance 1 is used.
110 Fixed problem with C compiler include path in wrong order.
112 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
113 on Solaris. Patch from Ko van der Sloot.
115 New MARC decode API. All new functions operate on a yaz_marc_t
116 handle. The most important new functions are: yaz_marc_create,
117 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
118 decode and destroy respectively. Decoder can produce formats
119 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
120 include/yaz/marcdisp.h.
122 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
123 to UTF-8, UCS-32, wchar_t or Latin-1.
125 * Prototypes for yaz_iconv_-functions moved to separate header
126 include/yaz/yaz-iconv.h.
128 Make a few private functions 'static' in unix.c. This prevents
129 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
131 For ZOOM connection, the options targetImplementation{Id,Name,Version}
132 are set when Init Response is received.
134 New function ZOOM_connection_error_x similar to ZOOM_connection_error
135 but returns diagnostic set as well.
137 New function yaz_strerror which is a portable wrapper for
138 strerror/strerror_r/GetLastMessage.
140 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
141 is returned for MARC. If type is "oai", then OAI MARC is returned.
143 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
148 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
150 Fix bad race conditions on SIGTERM and terminate gracefully in
153 Move retrieval (data1) module to Zebra since nobody seems to be
156 Add GRS-1 render for ZOOM using same format as yaz-client.
160 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
162 Fix broken ESpec handling in data1 module.
164 SGML reader parses comments and makes them part of the data1 tree.
166 Added several type casts so that YAZ compiles as C++ code.
168 ZOOM didn't handle PDU encoding failures properly.
170 Added more Bib-1 diagnostics (approved extensions).
172 GNU configure: better check for iconv.
174 More portable use of accept, getpeername. Check for socklen_t. Use
175 int/size_t if socklen_t is not defined.
179 PQF parser rejects bad queries - including those with extra
180 characters in them. PQF parser used to silently ignore that.
181 Cleaner API for PQF added, which allows you to get detailed
182 error information for bad queries (see yaz/pquery.h).
184 Fixed bug in ZOOM_record_get for type "database".
186 Implemented mini iconv library supporting conversions between
187 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
189 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
193 Fixed ZOOM C record cache so that preferredRecordSyntax and
194 elementSetName is used to check for already fetched records.
198 Added three members in bend_initrequest structure to facilitate
199 character set negotiation.
201 Fixed a bug in frontend server that could cause indefinite
202 loops under rare conditions.
204 Revised character set utilities (charneg.h) so that encoding
205 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
207 For PQF, directive @term <type> sets term type for Scan/Search.
208 Here <type> is general, string, numeric, null. The term type
209 is inherited - just like @attr.
211 New call odr_set_charset that sets character set conversion for
212 international-strings on a ODR stream. Prototype is:
213 int odr_set_charset(ODR o, const char *to, const char *from);
214 The InternationalString is still represented as C string in YAZ
215 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
216 won't). On the protocol level, you can use any encoding.
218 Support for UNIX sockets in ZOOM.
220 Solaris recv sometimes returns errno == ENOENT. It is treated as
221 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
223 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
224 both client and server. Code by Morten Bøgeskov.
228 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
229 that they can be used directly from Visual Basic. You must recompile
230 your windows APP if you're using ZOOM.
232 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
233 Commands "lang" and "charset" sets language and character set respectively.
234 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
235 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
237 Attributes from multiple CCL fields may be OR'ed rather than merged
238 using directive "@field or". Fields are still merged by default -
239 equivalent to "@field merge".
241 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
244 Fixed bug in zget for parameter ExtendedServicesResponse.
250 Added PQF feature: '@attr type=value' may be written as '@type=value'.
252 Client displays USR.1:SearchResult-1 (hits per term).
254 Additional Search Info for search in Generic Frontend Server.
256 Fixed CCL parsing of "field=s".
258 WIN32 installer - using the excellent NSIS software from nullsoft.
260 Fixed CCL parsing of "field = - <number>".
262 Added function yaz_marc_decode that decodes MARC for line mode
263 display or XML (similar to that used by JZKit).
265 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
266 Z39.50. But ISO/ILL was, however.
268 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
269 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
271 http://lcweb.loc.gov/z3950/agency/amend/am2.html
272 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
276 New YAZ client features: Command completion and new commands:
277 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
278 Code provided by Jacob Poulsen.
280 New call oid_trav, that visits all registered OIDs via callback.
282 Function ZOOM_record_get now returns const char pointer rather than
283 void pointer. It saves a lot of type casts.
285 For YAZ client, command "auth" now allows you to set authentication
286 in IdPass style. It is enabled when three tokens are given - order
287 is user, group and password.
289 Fix memory leaks in MARC record handling for ZOOM.
291 New option for YAZ client, -k <kilobytes> that sets
292 maximum record size. Similar to -k option for generic frontend
293 server and yaz-ztest.
295 More fixes for scan. Non-zero stepSize handled. OID's fixes.
297 Prefix query parser reports "fail" when bad attribute set is given.
299 Fix in MARC decoder. Proximity logging. Fix for attribute set
300 in scan handler for server. Patches by Shigeru Ishida.
302 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
305 Configure option --with-openssl=<dir> now works when a directory is
306 specified. Patch provided by Morten Bøgeskov.
308 New option for YAZ client, -u <auth>, that sets authentication.
310 ZOOM fix: error information was sometimes "missing", since error
311 was cleared/reset too when it shouldn't.
313 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
317 Scan for ZOOM API. New object ZOOM_scanset. New functions
318 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
319 ZOOM_scanset_destroy.
321 New ZOOM function, ZOOM_connection_last_event, that returns type
322 of last event (such as "receive data", "send data", "apdu received",
325 New ZOOM option, schema, that specifies schema for retrieval.
327 New CCL feature. Qualifiers can be aliases for one or more
328 other qualifiers (if more than one is given, OR is used).
330 ZOOM uses named result sets if target supports it.
332 Two new YAZ client commands: . (dot, which sources a script of YAZ
333 client commands), and ! (to execute shell command.). Implemented
336 Working on Debian packages.
340 YAZ client enables named result sets only if target supports it.
342 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
344 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
345 with key="host" to get same result.
347 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
348 Function Z3950_resultset_record(s) returns references to records
349 "owned" by resultset. To become owner use Z3950_record_clone.
351 Function z_ext_record handles Extended Services. Thanks to
356 CCL Parser fix: ignore token comma when dealing with and-lists.
358 Documentation updates for COMSTACK.
360 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
361 Changed prototype Z3950_records. For some functions, int parameters
362 were changed to size_t.
364 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
367 New MARC decode/display function, marc_display_exl, which properly rejects
368 non-ISO2709 records. YAZ client uses it.
372 Fix bug: local attribute set wasn't set correctly in PQF strings.
376 * Old Z39.50 codecs no longer supported.
378 Added ZOOM C binding. See http://zoom.z3950.org/
380 Renamed states for COMSTACKs to avoid confusion with events.
382 Implemented cs_look and proper cs_rcvconnect.
384 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
386 Configure detects POSIX threads on OpenBSD.
388 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
389 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
391 When error is returned from present handler, non-surrogate diagnostic
392 is returned in present response (and fetch handler is no longer called).
394 * Minor adjustments to pquery parser (PQF). Token characters may be
395 escaped by using backslash (C-style).
397 PQF parser allows string attribute values to be specified. For @attr,
398 non-numeric characters after the equal-sign are treated as strings
399 (e.g. @attr 9=title).
401 CCL trunction character may be defined (@truncation in file)
403 * function zget_ExtendedServicesRequest sets waitAction to
404 waitIfPossible (was wait).
406 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
409 CCL operator names may be set in field definition files (CCL_bibset).
410 See ccl/bib1 for an example.
412 Fixes in ASN.1 compiler for C++ compatibility.
414 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
415 and "op_or" to avoid conflict with C++.
417 Fixed problem with GNU readline detection on Redhat 7.0.
419 Added step-size for Scan backend handler.
421 Fixed bug that made the frontend server crash when no attribute
422 set was specified for scan.
424 Front-end server automatically switches to original working directory
425 when installed as an NT service. Previously -w had to be specified to
428 Added extended attributes for retrieval module (data1), so that data1
429 records carry d1_readXML/SGML attributes. d1_read also supports
430 null-data rules ( <tag/>)
432 On UNIX when POSIX threads are available, a separate library libyazthread
433 is created. Programmers should link with that library and the yaz library
434 when using threads. The reason for the split was that some applications
435 on Linux, such as Apache, doesn't work well when using shared objects that
438 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
439 (or any frontend server) in SSL mode by specifying ssl: followed by
440 address. Only tested on UNIX.
442 Added feature for CCL module. Virtual structure s=al or s=ol generates
443 and-list and or-list respectively instead of phrase search.
447 * Added prefix "yaz_" for the functions log_init.., log_file.. and
448 log_mask_str. This was done to avoid name conflicts with other libraries
449 (such as other PHP extensions).
451 Added raw OID member for preferred record syntax (request_format_raw)
452 and returned record syntax (output_format_raw) for backend fetch method.
454 Config file yaz-config now accepts options so that it returns specific
455 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
457 Shared library support for UNIX using GNU libtool.
459 * Modified backend interface. Request/Response struct's replaced by
460 one read/write C struct. For example bend_fetchrequest and
461 bend_fetchresult have been replaced by single bend_fetch_rr struct.
462 Every handler - even search has to be registered in bend_init
463 handler. This means that the YAZ library no longer refers to
464 external functions and it makes it possible to make the whole
465 thing a single DLL/SO.
467 Added Segment handler for backend server.
469 Added Zmbol/Zebra administrative functions to YAZ client.
471 Threaded frontend server on UNIX (when POSIX Threads are available).
472 Starting the server with option -T enables multi-threading.
476 Added configure option --enable-comp/disable-comp to control use
477 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
478 located in sub directory asn.
480 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
481 in ${exec_prefix}/bin along with the other programs yaz-client and
484 GNU automake used to maintain makefiles.
488 Changed retrieval module so that we can load records with no abstract
489 syntax defined. Tagpaths in these records are fully composed of string
492 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
496 On UNIX, the generated makefile now supports a proper 'make install'.
497 The prefix can be set via GNU configure to set the install location
498 (default is /usr/local).
500 * YAZ programs client and ztest were renamed to yaz-client and
501 yaz-ztest to avoid conflicts when users install YAZ in "standard"
502 locations, such as /usr/bin,/usr/local/bin,etc.
504 * YAZ Header files were moved from include to include/yaz. YAZ Header
505 files are referred to as include <yaz/log.h> rather than <log.h>.
506 The YAZ include path (-I ..) is therefore the same as before. Programmers
507 should update their #include statements or use -Ipath/include/yaz
508 instead. The main motivation for doing this change is that YAZ header files
509 can be installed in "standard" locations /usr/include,/usr/local/include
510 without introducing conflicts, since ALL YAZ header files are stored
511 in subdirectory yaz (under /usr/include for example).
513 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
514 rather than project/workspace files. We switched because project files
515 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
518 Changed name of logging function, logf, to yaz_log, to prevent name
519 clash with some math-log functions. The YAZ header log.h defines logf
520 to yaz_log (#define) so there should be no incompatibilities by this
523 Added bend_start/bend_stop handlers for server. These handler are
524 called on start/stop of server. For windows they are called whenever
525 a service is started/stopped.
527 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
528 a fairly small ASN.1 compiler written in Tcl. The compiler is located
529 in util/yc.tcl. The auto-generated C code structures are, in a few
530 cases, incompatible with the old decoders. There are differences in the
531 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
532 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
533 The preprocessor variable ASN_COMPILED is defined when the compiled
534 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
535 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
536 wish to use the old encoders/decoders you can specify --disable-yc
539 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
540 version so that it supports both new - and old version of DB Update
542 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
543 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
544 change. The name parameter can be set to 0 in which no name is specified
545 for the construction. The macros odr_implicit and odr_explicit sets name
546 parameter to zero for the construction involved. New macros
547 odr_implicit_tag and odr_explicit_tag are similar to the others,
548 except that a name parameter is added. For programmers' that don't use
549 ODR they probably only need to change the call to z_APDU and z_External.
551 Added access control facility by interfacing the TCP wrapper library.
552 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
553 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
554 name of the daemon and enables the access control as specified in
555 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
557 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
558 den Dool <H.M.vdnDool@kub.nl>.
560 Added reference ID parameter to most functions in server API - refer
561 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
563 Changed name of ccl library to libccl.a (was ccl.a).
565 Fixed bug in decoder for Explain (Category TargetInfo).
567 Added support for GNU readline in client. Thanks to Jacob Poulsen
568 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
570 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
571 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
572 IMPLEMENTATION! This change was made to the development version before
573 the ZIG decided to retract the amendment. If any users MUST be
574 compatible with the original Update definition, PLEASE CONTACT US, and
575 we will include a separate definition corresponding to the old Update
576 ES. Note that because of the change to the ASN.1 of the
577 TaskPackageRecordStructure we cannot define a single structure that
578 will support both versions.
580 * Added const modifier to buffer parameter for some ODR/BER encoding
581 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
582 completeWAIS, odr_dumpBER.
584 Fixed bug in client.c which caused a crash when a scanResponse didn't
585 contain positionOfTerm.
587 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
588 * will cause an error in a client if a non-YAZ target sends both a
589 * list of Scan entries and non-surrogate diagnostics.
591 Retrieval module enhancements. Tag sets may be typed in the reference
592 to it. From the .abs-file the "tagset" directive takes a third optional
593 integer type for the tag set referenced. From a .tag-file the "include"
594 directive takes a third optional type as well. The old "type" directive
595 in the tag set itself is still recognized but acts as the default type
598 Backend interface change. Individual Scan terms returned from bend_scan
599 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
600 in include/backend.h.
602 Retrieval module enhancements. Multiple tag sets and attribute sets may
603 be specified in abstract syntax specs. Revised the error/warning for
604 logging messages reported by the retrieval module when reading the
607 Object Identifier system (oid_..) changed. The API is backwards
608 compatible but the oid-routines now allocates new OID's when needed.
609 Raw OID's may be specified in oid_getvalbyname.
611 YAZ now uses GNU configure to generate Makefile(s).
613 * Minor changes in some of the member names of DeleteResultSetRequest and
614 DeleteResultSetResponse. See include/proto.h.
616 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
617 and added member 'languages' in TargetInfo (which was missing).
619 Changed the way attribute sets are handled in the retrieval
620 module. These are now cached, just like the abstract syntaxes
623 Changed YAZ so that it links with compiled ASN.1.
625 Added Explain-schema definitions and mapping routines. The following
626 Explain categories have been implemented: AttributeDetails,
627 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
629 Fixed minor bug in Windows version of Server Library.
631 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
633 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
635 Added EXTERNAL: UNIverse Resource Report (non-standard).
637 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
638 ENUMERATED and SET OF.
640 * Added 'const' to some of the char pointer arguments for the
641 functions, data1_read_node, data1_getelementbytagname,
642 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
645 Fixed bug in data1_insert_taggeddata - the last_child member of
646 parent wasn't initialised.
648 * Changed data1_read_record and data1_read_node so that the supplied
649 "SGML"-buffer is read-only. In particular the resulting data1 - tree
650 doesn't refer to any parts of the "SGML"-buffer.
652 Fixed bug in server library (Windows version of statserv_remove).
654 * Changed code so that it compiles as C++. The type definition
655 of Odr_fun which is a member of Odr_arm was changed. The result is,
656 that an explicit typecast is needed for the fun pointer when
657 using Odr_arm - as in:
658 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
660 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
662 Implemented the new structured date and time definition as approved
663 by the ZIG. Added schemaId element to the specificTag in Espec-1
664 (also approved at the last ZIG). Thanks to RVDM.
666 Added some Object identifiers (RVDM).
668 Changed the Update Extended Service (RVDM).
670 Added command "refid" to client which specifies referenceId for
671 the following requests.
673 Implemented extended service handling for server. See ztest.c
674 for an example as well as backend.h. New handlers are registerd
677 * Changed interface for sort in server.
679 Added new members to statserv_options_block. It allows a server
680 to read options from another source than just the command line. Thanks
681 to Charles Woodfield.
683 * Changed definition of Z_Triple in file prt-grs.h - member boolean
684 renamed to zboolean. Some C++ compilers complained about the name.
686 Minor changes to gils.abs. Added index 's' (sort) on title
687 and date/time-last-modified.
691 Fixed bug in server library regarding inetd mode (-i). This bug
692 was introduced by release 1.4.
696 Added sort facility in client and backend server interface.
698 Fixed problem with dependencies in Makefile(s).
700 Fixed bugs for encoders/decoders of extended services and
703 Implemented sub-tree feature for schemas. Sub-trees are
704 referenced in *.abs-files. See explain.abs for an example
705 of the use of this feature.
707 Modified bib1.att; local attributes for ANY didn't include
708 ANY itself (only affects use of the retrieval module).
710 Fixed bug in plain SGML reader in function data1_read_node:
711 tags with prefix "var" was incorrectly interpreted as variants.
713 Added feature "sub-schemas" to enable references to - and definitions
714 of - group of elements.
716 * Removed member parent from type data1_element (in data1.h).
718 Implemented function odr_nullval() that returns the value of
721 * Removed member num_children from data1_node (in data1.h).
723 Made NT service interface part of the server library. The
724 function statserv_main uses the NT service when required and
725 calls the statserv_start / statserv_close routines.
727 Routine zget_SearchRequest and zget_PresentRequest fills
728 resultSetName/Id member with "default" instead of "Default".
730 Fixed memory leak in server. Request queue member wasn't freed.
732 Fixed nmem_exit so that memory is freed.
736 Revised the CCL parser utility to be thread safe.
738 Added function, oid_ent_to_oid, to replace the function
739 oid_getoidbyent, which is not thread safe.
741 * Added nmem_init and nmem_exit to initialize and release
742 NMEM resources. Function nmem_init should be called once in the
743 initial thread before NMEM/ODR is used. statserv.c and client.c
744 have been changed accordingly. The change was necessary to make
745 NMEM thread safe. The NMEM memory pool is shared amongst threads
746 in a process. Unix-based applications will still work fine without
749 Added NT Services interface for the the Z39.50 (statserv) Server.
750 Refer to the ztest.c source on the usage.
752 Windows 95/NT port using MSVC5.0. Project files are included in the
755 * Defined new 'global' handle for the retrieval (data1) system. The
756 new handled, data1_handle, describes the state of the data1 system.
757 This handle is passed as first argument to virtually all
758 data1 related routines. The functions data1_create and data1_destroy
759 creates and destroys a data1 handle respectively.
761 Added ODR encode stream member to all backend request structures
762 init, search, scan etc. This stream should be used to allocate all
763 memory used for the response when thread safe operation is needed.
765 Changed the comstack utility, cs_addstr, to be thread safe. The
766 returned hostname string returned by the function is now part the
769 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
770 function. The cs_straddr takes a COMSTACK handle as argument, so this
771 function must be used after cs_create and before bind/connect.
772 This function is thread safe.
774 Moved test server to 'ztest' directory - generic server code still
775 in 'server' directory.
777 Made prefix query (pquery.c) utility thread safe.
779 Added new function modifier YAZ_EXPORT to 'export' public DLL
780 functions when using windows (see include/yconfig.h).
782 Added definitions to the OID database (util/oid.c) (RVDM).
784 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
786 Added call to ccl_rpn_delete in client program.
788 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
789 release of RPN structure.
791 Added support for C++, headers uses extern "C" for public definitions.
792 With input from RVDM.
794 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
795 Thanks to Ronald van der Meer (RVDM).
797 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
799 Added support for private extensions to the OID database
800 (oid_setprivateoids()). Thanks to RVDM.
802 Added optional, physical ANY (key replication)
804 Fixed null-reference problem in GRS-1 output filter.
806 Proximity operator added to Prefix Query Format (PQF).
808 In test client command "base" accepts multiple databases.
810 Fixed bug in cs_close stack that caused trouble with WINSOCK.
814 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
816 Smallish bug-fixes in the new encoders/decoders (explain).
818 Bug fixed in DeleteRequest.
820 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
822 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
824 Added SOIF syntax (using private OID for now) to retrieval module and client.
826 Added Update extended service.
828 Added SearchResult-1 additional info structure.
830 Added optional CCL (ISO8777) interpreter as separate module. Available
833 --- 1.2 1996/6/10 (1st anniversary release)
835 Added Summary record syntax. Lightly tested.
837 Added OPAC record syntax. Untested.
839 Added ResourceReport service encoders/decoders. Untested.
841 Fixed bug in z_Unit - wrong tagging on unitSystem.
843 Fixed bug in the DiagRecs decoder.
845 Added options for max PDU size and session timeout to frontend-server.
847 Added documentation of query-language parsers and other supporting utilities.
849 [frontend-server] Added Attribute set to the bend_scanrequest API.
851 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
852 surrogate diagnostics were generated.
854 [retrieval] Allow multiple local values for attribute.
856 [retrieval] Allow multiple attributes per element in .abs files. index type.
858 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
862 Minor changes, mostly specific to Zebra's requirements (retrieval)
866 Repaired bug in frontend server when running multiple listening
867 endpoints in dynamic mode.
869 z_External() now won't break if a known, ASN.1 value comes encapsulated
870 in an octet-string. The value will pass through unmodified in an Odr_oct.
872 Added a bit of code to the demo client to decode & display
873 ASN.1-structured records represented in the octet-aligned branch of
874 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
876 Added z_ext_getentbyref() to the ASN module. Doc updated.
878 * Completed the SCAN definition in the ASN module. This may break SCAN
879 code based on older YAZ-versions at compile-time. The fix is easy -
882 * Added 'displayTerm' and OtherInformation to the TermInfo structure
883 under the SCAN definition. Remember to initialize this, server-people.
885 Comstack should now support the WAIS protocol in TCP/IP mode. Note
886 that this does not extend to ODR and ASN.
888 Comstack allows insertion of established socket (primarily for
889 inetd-operation of servers). Doc updated.
891 Front-end server can now start from the inetd in TCP mode. Doc
898 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
899 the rank and record number.
901 Adjustments to the frontend server.
903 Fixed diagnostic BER dumper. It ignored the file argument.
907 Various changes to retrieval module.
909 Changed the union discriminators of the protocol files from enums to
910 ints paired with #defines.
912 *Changed oident.class to oident.oclass to avoid a reserved word in C++
915 *Changed operator in the RPN structure to 'roperator', again to avoid a
918 Fixed problems in Explain decoders/encoders.
922 Memory bug in log module fixed.
926 Occasional malloc() of 0 bytes fixed in d1_espec.c.
928 Bug in Explain DatabaseInfo module fixed.
930 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
934 The shift to v1.0 signals that we now consider the *core* functionality
935 of YAZ reasonably stable (the core being more or less equivalent to
936 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
937 tested (Explain not at all - though that will happen soonish).
939 Minor changes to code to support Windows port.
941 Various minor changes after we're getting to use GRS-1 & co. more.
943 Added Espec-1 format.
945 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
946 of the protocol and it cannot be selected when encoding (maps into 'string'
947 when decoding). Needed to talk to some servers.
949 Demo client can request simple element set names.
951 Added Diagnostic Format encoders/decoders.
953 Added simple Close handling to frontend server (no hooks for resource
954 reporting yet), and demonstration client.
956 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
960 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
961 handled incorrectly when records were requested in the searchResponse. This
962 will only affect you if you use the frontend-server.
964 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
965 Test-client will ask for and print GRS1. Ztest will return dummy records
968 Added Explain encoders/decoders to the service-level API. Untested.
970 Added Extended Services: Item Order encoders and decoders to the Service-
971 level API. Untested. We could use a recent copy of the pertinent bits
972 of the ILL protocol to add those bits.
974 Added diagnostic format 1 encoders/decoders to the service-level API.
977 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
978 odr_cons.c, which causes a more correct output.
980 Fixed handling of searchRequest in frontend server. NextResultSetPosition
981 was always set to 0 when no records were requested in the searchRequest.
983 * Added better external-handling. This shouldn't harm old code that
984 *encodes* externals. It can break code that looks for a
985 'single-ASN1-type' representation, since those types that are known
986 are now decoded immediately. Look at the SUTRS sample code in
987 seshigh.c and client.c. Documentation updated.
989 Handling of structured records in bend_fetchresponse. Length -1 marks
990 structured record, type is deduced from format field.
993 Fairly quick maintenance release to add SUTRS support.
995 Fixed handling of SUTRS records in the demonstration client.
997 * Added format field to the bend_fetchrequest and bend_fetchresponce
998 structures of the backend API (frontend server). When the record is
999 returned, the value of the format field is mapped to an OID. The
1000 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1001 of the record. The special value VAL_NONE in the bend_request means
1002 that no specific format was requested by the client. Documentation
1003 updated accordingly. Test server (ztest) will return a fixed dummy
1004 SUTRS record if your client requests SUTRS.
1006 Documentation updated accordingly.
1008 You can now set external libraries and RANLIB support in the top-level
1012 First public release.