1 Possible compatibility problems with earlier versions marked with '*'.
5 Redhat package is now several packages: libyaz (runtime libraries),
6 libyaz-devel (development and documentation, and yaz (utility programs).
7 Package spec file by Morten Bøgeskov.
9 New member 'schema' in struct bend_fetch_rr which the name of requested
10 schema (SRW/SRU) for record (or NULL if none was given). The fetch
11 handler MAY set this to reflect the schema of the returned record.
13 New member 'display_term' in struct scan_entry. GFS now sets member entries
14 and allocates scan entries to be filled by user scan handler. In previous
15 version, entries member was allocated by the scan handler. That still works,
16 but the GFS will ignore member display_term - assuming it was NOT set by
17 the handler. The fact that the GFS now allocates the entries both allows
18 for new members and makes a scan handler easier to write.
20 Fix CQL lex buffer overflow.
22 SRW/SRU recordPacking. For SRW default recordPacking is string. For
23 SRU default recordPacking is string.
25 SRU protocol support for frontend server.
27 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
29 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
31 Added scan for the ZOOM shell (zoomsh).
35 * String Identifers for Schemas (Amendment 5).
36 http://lcweb.loc.gov/z3950/agency/amend/am5.html
37 Old definition for schema
38 Odr_oid *schema; /* OPT */
43 Z_InternationalString *uri;
44 #define Z_Schema_oid 1
45 #define Z_Schema_uri 2
48 * resultCount parameter to Sort Response (Amendment 1).
49 http://lcweb.loc.gov/z3950/agency/amend/am1.html
51 Support for SRW 1.0 over HTTP. This is an optional feature and
52 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
55 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
56 on the same port. SRW SearchRetrieveRequests are mapped
57 to bend_init,bend_search,bend_fetch,bend_close.
59 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
61 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
62 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
64 ZOOM connections are SRW based if schem http is used for hostname
65 in connect, e.g. z = ZOOM_connection_new("http://myserver");
66 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
68 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
69 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
70 distance=n, order=true/false, relation=le, prox unit=word. If
71 n is omitted, distance 1 is used.
73 Fixed problem with C compiler include path in wrong order.
75 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
76 on Solaris. Patch from Ko van der Sloot.
78 New MARC decode API. All new functions operate on a yaz_marc_t
79 handle. The most important new functions are: yaz_marc_create,
80 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
81 decode and destroy respectively. Decoder can produce formats
82 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
83 include/yaz/marcdisp.h.
85 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
86 to UTF-8, UCS-32, wchar_t or Latin-1.
88 * Prototypes for yaz_iconv_-functions moved to separate header
89 include/yaz/yaz-iconv.h.
91 Make a few private functions 'static' in unix.c. This prevents
92 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
94 For ZOOM connection, the options targetImplementation{Id,Name,Version}
95 are set when Init Response is received.
97 New function ZOOM_connection_error_x similar to ZOOM_connection_error
98 but returns diagnostic set as well.
100 New function yaz_strerror which is a portable wrapper for
101 strerror/strerror_r/GetLastMessage.
103 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
104 is returned for MARC. If type is "oai", then OAI MARC is returned.
106 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
111 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
113 Fix bad race conditions on SIGTERM and terminate gracefully in
116 Move retrieval (data1) module to Zebra since nobody seems to be
119 Add GRS-1 render for ZOOM using same format as yaz-client.
123 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
125 Fix broken ESpec handling in data1 module.
127 SGML reader parses comments and makes them part of the data1 tree.
129 Added several type casts so that YAZ compiles as C++ code.
131 ZOOM didn't handle PDU encoding failures properly.
133 Added more Bib-1 diagnostics (approved extensions).
135 GNU configure: better check for iconv.
137 More portable use of accept, getpeername. Check for socklen_t. Use
138 int/size_t if socklen_t is not defined.
142 PQF parser rejects bad queries - including those with extra
143 characters in them. PQF parser used to silently ignore that.
144 Cleaner API for PQF added, which allows you to get detailed
145 error information for bad queries (see yaz/pquery.h).
147 Fixed bug in ZOOM_record_get for type "database".
149 Implemented mini iconv library supporting conversions between
150 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
152 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
156 Fixed ZOOM C record cache so that preferredRecordSyntax and
157 elementSetName is used to check for already fetched records.
161 Added three members in bend_initrequest structure to facilitate
162 character set negotiation.
164 Fixed a bug in frontend server that could cause indefinite
165 loops under rare conditions.
167 Revised character set utilities (charneg.h) so that encoding
168 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
170 For PQF, directive @term <type> sets term type for Scan/Search.
171 Here <type> is general, string, numeric, null. The term type
172 is inherited - just like @attr.
174 New call odr_set_charset that sets character set conversion for
175 international-strings on a ODR stream. Prototype is:
176 int odr_set_charset(ODR o, const char *to, const char *from);
177 The InternationalString is still represented as C string in YAZ
178 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
179 won't). On the protocol level, you can use any encoding.
181 Support for UNIX sockets in ZOOM.
183 Solaris recv sometimes returns errno == ENOENT. It is treated as
184 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
186 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
187 both client and server. Code by Morten Bøgeskov.
191 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
192 that they can be used directly from Visual Basic. You must recompile
193 your windows APP if you're using ZOOM.
195 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
196 Commands "lang" and "charset" sets language and character set respectively.
197 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
198 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
200 Attributes from multiple CCL fields may be OR'ed rather than merged
201 using directive "@field or". Fields are still merged by default -
202 equivalent to "@field merge".
204 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
207 Fixed bug in zget for parameter ExtendedServicesResponse.
213 Added PQF feature: '@attr type=value' may be written as '@type=value'.
215 Client displays USR.1:SearchResult-1 (hits per term).
217 Additional Search Info for search in Generic Frontend Server.
219 Fixed CCL parsing of "field=s".
221 WIN32 installer - using the excellent NSIS software from nullsoft.
223 Fixed CCL parsing of "field = - <number>".
225 Added function yaz_marc_decode that decodes MARC for line mode
226 display or XML (similar to that used by JZKit).
228 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
229 Z39.50. But ISO/ILL was, however.
231 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
232 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
234 http://lcweb.loc.gov/z3950/agency/amend/am2.html
235 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
239 New YAZ client features: Command completion and new commands:
240 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
241 Code provided by Jacob Poulsen.
243 New call oid_trav, that visits all registered OIDs via callback.
245 Function ZOOM_record_get now returns const char pointer rather than
246 void pointer. It saves a lot of type casts.
248 For YAZ client, command "auth" now allows you to set authentication
249 in IdPass style. It is enabled when three tokens are given - order
250 is user, group and password.
252 Fix memory leaks in MARC record handling for ZOOM.
254 New option for YAZ client, -k <kilobytes> that sets
255 maximum record size. Similar to -k option for generic frontend
256 server and yaz-ztest.
258 More fixes for scan. Non-zero stepSize handled. OID's fixes.
260 Prefix query parser reports "fail" when bad attribute set is given.
262 Fix in MARC decoder. Proximity logging. Fix for attribute set
263 in scan handler for server. Patches by Shigeru Ishida.
265 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
268 Configure option --with-openssl=<dir> now works when a directory is
269 specified. Patch provided by Morten Bøgeskov.
271 New option for YAZ client, -u <auth>, that sets authentication.
273 ZOOM fix: error information was sometimes "missing", since error
274 was cleared/reset too when it shouldn't.
276 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
280 Scan for ZOOM API. New object ZOOM_scanset. New functions
281 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
282 ZOOM_scanset_destroy.
284 New ZOOM function, ZOOM_connection_last_event, that returns type
285 of last event (such as "receive data", "send data", "apdu received",
288 New ZOOM option, schema, that specifies schema for retrieval.
290 New CCL feature. Qualifiers can be aliases for one or more
291 other qualifiers (if more than one is given, OR is used).
293 ZOOM uses named result sets if target supports it.
295 Two new YAZ client commands: . (dot, which sources a script of YAZ
296 client commands), and ! (to execute shell command.). Implemented
299 Working on Debian packages.
303 YAZ client enables named result sets only if target supports it.
305 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
307 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
308 with key="host" to get same result.
310 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
311 Function Z3950_resultset_record(s) returns references to records
312 "owned" by resultset. To become owner use Z3950_record_clone.
314 Function z_ext_record handles Extended Services. Thanks to
319 CCL Parser fix: ignore token comma when dealing with and-lists.
321 Documentation updates for COMSTACK.
323 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
324 Changed prototype Z3950_records. For some functions, int parameters
325 were changed to size_t.
327 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
330 New MARC decode/display function, marc_display_exl, which properly rejects
331 non-ISO2709 records. YAZ client uses it.
335 Fix bug: local attribute set wasn't set correctly in PQF strings.
339 * Old Z39.50 codecs no longer supported.
341 Added ZOOM C binding. See http://zoom.z3950.org/
343 Renamed states for COMSTACKs to avoid confusion with events.
345 Implemented cs_look and proper cs_rcvconnect.
347 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
349 Configure detects POSIX threads on OpenBSD.
351 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
352 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
354 When error is returned from present handler, non-surrogate diagnostic
355 is returned in present response (and fetch handler is no longer called).
357 * Minor adjustments to pquery parser (PQF). Token characters may be
358 escaped by using backslash (C-style).
360 PQF parser allows string attribute values to be specified. For @attr,
361 non-numeric characters after the equal-sign are treated as strings
362 (e.g. @attr 9=title).
364 CCL trunction character may be defined (@truncation in file)
366 * function zget_ExtendedServicesRequest sets waitAction to
367 waitIfPossible (was wait).
369 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
372 CCL operator names may be set in field definition files (CCL_bibset).
373 See ccl/bib1 for an example.
375 Fixes in ASN.1 compiler for C++ compatibility.
377 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
378 and "op_or" to avoid conflict with C++.
380 Fixed problem with GNU readline detection on Redhat 7.0.
382 Added step-size for Scan backend handler.
384 Fixed bug that made the frontend server crash when no attribute
385 set was specified for scan.
387 Front-end server automatically switches to original working directory
388 when installed as an NT service. Previously -w had to be specified to
391 Added extended attributes for retrieval module (data1), so that data1
392 records carry d1_readXML/SGML attributes. d1_read also supports
393 null-data rules ( <tag/>)
395 On UNIX when POSIX threads are available, a separate library libyazthread
396 is created. Programmers should link with that library and the yaz library
397 when using threads. The reason for the split was that some applications
398 on Linux, such as Apache, doesn't work well when using shared objects that
401 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
402 (or any frontend server) in SSL mode by specifying ssl: followed by
403 address. Only tested on UNIX.
405 Added feature for CCL module. Virtual structure s=al or s=ol generates
406 and-list and or-list respectively instead of phrase search.
410 * Added prefix "yaz_" for the functions log_init.., log_file.. and
411 log_mask_str. This was done to avoid name conflicts with other libraries
412 (such as other PHP extensions).
414 Added raw OID member for preferred record syntax (request_format_raw)
415 and returned record syntax (output_format_raw) for backend fetch method.
417 Config file yaz-config now accepts options so that it returns specific
418 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
420 Shared library support for UNIX using GNU libtool.
422 * Modified backend interface. Request/Response struct's replaced by
423 one read/write C struct. For example bend_fetchrequest and
424 bend_fetchresult have been replaced by single bend_fetch_rr struct.
425 Every handler - even search has to be registered in bend_init
426 handler. This means that the YAZ library no longer refers to
427 external functions and it makes it possible to make the whole
428 thing a single DLL/SO.
430 Added Segment handler for backend server.
432 Added Zmbol/Zebra administrative functions to YAZ client.
434 Threaded frontend server on UNIX (when POSIX Threads are available).
435 Starting the server with option -T enables multi-threading.
439 Added configure option --enable-comp/disable-comp to control use
440 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
441 located in sub directory asn.
443 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
444 in ${exec_prefix}/bin along with the other programs yaz-client and
447 GNU automake used to maintain makefiles.
451 Changed retrieval module so that we can load records with no abstract
452 syntax defined. Tagpaths in these records are fully composed of string
455 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
459 On UNIX, the generated makefile now supports a proper 'make install'.
460 The prefix can be set via GNU configure to set the install location
461 (default is /usr/local).
463 * YAZ programs client and ztest were renamed to yaz-client and
464 yaz-ztest to avoid conflicts when users install YAZ in "standard"
465 locations, such as /usr/bin,/usr/local/bin,etc.
467 * YAZ Header files were moved from include to include/yaz. YAZ Header
468 files are referred to as include <yaz/log.h> rather than <log.h>.
469 The YAZ include path (-I ..) is therefore the same as before. Programmers
470 should update their #include statements or use -Ipath/include/yaz
471 instead. The main motivation for doing this change is that YAZ header files
472 can be installed in "standard" locations /usr/include,/usr/local/include
473 without introducing conflicts, since ALL YAZ header files are stored
474 in subdirectory yaz (under /usr/include for example).
476 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
477 rather than project/workspace files. We switched because project files
478 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
481 Changed name of logging function, logf, to yaz_log, to prevent name
482 clash with some math-log functions. The YAZ header log.h defines logf
483 to yaz_log (#define) so there should be no incompatibilities by this
486 Added bend_start/bend_stop handlers for server. These handler are
487 called on start/stop of server. For windows they are called whenever
488 a service is started/stopped.
490 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
491 a fairly small ASN.1 compiler written in Tcl. The compiler is located
492 in util/yc.tcl. The auto-generated C code structures are, in a few
493 cases, incompatible with the old decoders. There are differences in the
494 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
495 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
496 The preprocessor variable ASN_COMPILED is defined when the compiled
497 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
498 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
499 wish to use the old encoders/decoders you can specify --disable-yc
502 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
503 version so that it supports both new - and old version of DB Update
505 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
506 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
507 change. The name parameter can be set to 0 in which no name is specified
508 for the construction. The macros odr_implicit and odr_explicit sets name
509 parameter to zero for the construction involved. New macros
510 odr_implicit_tag and odr_explicit_tag are similar to the others,
511 except that a name parameter is added. For programmers' that don't use
512 ODR they probably only need to change the call to z_APDU and z_External.
514 Added access control facility by interfacing the TCP wrapper library.
515 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
516 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
517 name of the daemon and enables the access control as specified in
518 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
520 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
521 den Dool <H.M.vdnDool@kub.nl>.
523 Added reference ID parameter to most functions in server API - refer
524 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
526 Changed name of ccl library to libccl.a (was ccl.a).
528 Fixed bug in decoder for Explain (Category TargetInfo).
530 Added support for GNU readline in client. Thanks to Jacob Poulsen
531 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
533 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
534 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
535 IMPLEMENTATION! This change was made to the development version before
536 the ZIG decided to retract the amendment. If any users MUST be
537 compatible with the original Update definition, PLEASE CONTACT US, and
538 we will include a separate definition corresponding to the old Update
539 ES. Note that because of the change to the ASN.1 of the
540 TaskPackageRecordStructure we cannot define a single structure that
541 will support both versions.
543 * Added const modifier to buffer parameter for some ODR/BER encoding
544 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
545 completeWAIS, odr_dumpBER.
547 Fixed bug in client.c which caused a crash when a scanResponse didn't
548 contain positionOfTerm.
550 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
551 * will cause an error in a client if a non-YAZ target sends both a
552 * list of Scan entries and non-surrogate diagnostics.
554 Retrieval module enhancements. Tag sets may be typed in the reference
555 to it. From the .abs-file the "tagset" directive takes a third optional
556 integer type for the tag set referenced. From a .tag-file the "include"
557 directive takes a third optional type as well. The old "type" directive
558 in the tag set itself is still recognized but acts as the default type
561 Backend interface change. Individual Scan terms returned from bend_scan
562 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
563 in include/backend.h.
565 Retrieval module enhancements. Multiple tag sets and attribute sets may
566 be specified in abstract syntax specs. Revised the error/warning for
567 logging messages reported by the retrieval module when reading the
570 Object Identifier system (oid_..) changed. The API is backwards
571 compatible but the oid-routines now allocates new OID's when needed.
572 Raw OID's may be specified in oid_getvalbyname.
574 YAZ now uses GNU configure to generate Makefile(s).
576 * Minor changes in some of the member names of DeleteResultSetRequest and
577 DeleteResultSetResponse. See include/proto.h.
579 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
580 and added member 'languages' in TargetInfo (which was missing).
582 Changed the way attribute sets are handled in the retrieval
583 module. These are now cached, just like the abstract syntaxes
586 Changed YAZ so that it links with compiled ASN.1.
588 Added Explain-schema definitions and mapping routines. The following
589 Explain categories have been implemented: AttributeDetails,
590 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
592 Fixed minor bug in Windows version of Server Library.
594 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
596 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
598 Added EXTERNAL: UNIverse Resource Report (non-standard).
600 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
601 ENUMERATED and SET OF.
603 * Added 'const' to some of the char pointer arguments for the
604 functions, data1_read_node, data1_getelementbytagname,
605 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
608 Fixed bug in data1_insert_taggeddata - the last_child member of
609 parent wasn't initialised.
611 * Changed data1_read_record and data1_read_node so that the supplied
612 "SGML"-buffer is read-only. In particular the resulting data1 - tree
613 doesn't refer to any parts of the "SGML"-buffer.
615 Fixed bug in server library (Windows version of statserv_remove).
617 * Changed code so that it compiles as C++. The type definition
618 of Odr_fun which is a member of Odr_arm was changed. The result is,
619 that an explicit typecast is needed for the fun pointer when
620 using Odr_arm - as in:
621 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
623 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
625 Implemented the new structured date and time definition as approved
626 by the ZIG. Added schemaId element to the specificTag in Espec-1
627 (also approved at the last ZIG). Thanks to RVDM.
629 Added some Object identifiers (RVDM).
631 Changed the Update Extended Service (RVDM).
633 Added command "refid" to client which specifies referenceId for
634 the following requests.
636 Implemented extended service handling for server. See ztest.c
637 for an example as well as backend.h. New handlers are registerd
640 * Changed interface for sort in server.
642 Added new members to statserv_options_block. It allows a server
643 to read options from another source than just the command line. Thanks
644 to Charles Woodfield.
646 * Changed definition of Z_Triple in file prt-grs.h - member boolean
647 renamed to zboolean. Some C++ compilers complained about the name.
649 Minor changes to gils.abs. Added index 's' (sort) on title
650 and date/time-last-modified.
654 Fixed bug in server library regarding inetd mode (-i). This bug
655 was introduced by release 1.4.
659 Added sort facility in client and backend server interface.
661 Fixed problem with dependencies in Makefile(s).
663 Fixed bugs for encoders/decoders of extended services and
666 Implemented sub-tree feature for schemas. Sub-trees are
667 referenced in *.abs-files. See explain.abs for an example
668 of the use of this feature.
670 Modified bib1.att; local attributes for ANY didn't include
671 ANY itself (only affects use of the retrieval module).
673 Fixed bug in plain SGML reader in function data1_read_node:
674 tags with prefix "var" was incorrectly interpreted as variants.
676 Added feature "sub-schemas" to enable references to - and definitions
677 of - group of elements.
679 * Removed member parent from type data1_element (in data1.h).
681 Implemented function odr_nullval() that returns the value of
684 * Removed member num_children from data1_node (in data1.h).
686 Made NT service interface part of the server library. The
687 function statserv_main uses the NT service when required and
688 calls the statserv_start / statserv_close routines.
690 Routine zget_SearchRequest and zget_PresentRequest fills
691 resultSetName/Id member with "default" instead of "Default".
693 Fixed memory leak in server. Request queue member wasn't freed.
695 Fixed nmem_exit so that memory is freed.
699 Revised the CCL parser utility to be thread safe.
701 Added function, oid_ent_to_oid, to replace the function
702 oid_getoidbyent, which is not thread safe.
704 * Added nmem_init and nmem_exit to initialize and release
705 NMEM resources. Function nmem_init should be called once in the
706 initial thread before NMEM/ODR is used. statserv.c and client.c
707 have been changed accordingly. The change was necessary to make
708 NMEM thread safe. The NMEM memory pool is shared amongst threads
709 in a process. Unix-based applications will still work fine without
712 Added NT Services interface for the the Z39.50 (statserv) Server.
713 Refer to the ztest.c source on the usage.
715 Windows 95/NT port using MSVC5.0. Project files are included in the
718 * Defined new 'global' handle for the retrieval (data1) system. The
719 new handled, data1_handle, describes the state of the data1 system.
720 This handle is passed as first argument to virtually all
721 data1 related routines. The functions data1_create and data1_destroy
722 creates and destroys a data1 handle respectively.
724 Added ODR encode stream member to all backend request structures
725 init, search, scan etc. This stream should be used to allocate all
726 memory used for the response when thread safe operation is needed.
728 Changed the comstack utility, cs_addstr, to be thread safe. The
729 returned hostname string returned by the function is now part the
732 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
733 function. The cs_straddr takes a COMSTACK handle as argument, so this
734 function must be used after cs_create and before bind/connect.
735 This function is thread safe.
737 Moved test server to 'ztest' directory - generic server code still
738 in 'server' directory.
740 Made prefix query (pquery.c) utility thread safe.
742 Added new function modifier YAZ_EXPORT to 'export' public DLL
743 functions when using windows (see include/yconfig.h).
745 Added definitions to the OID database (util/oid.c) (RVDM).
747 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
749 Added call to ccl_rpn_delete in client program.
751 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
752 release of RPN structure.
754 Added support for C++, headers uses extern "C" for public definitions.
755 With input from RVDM.
757 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
758 Thanks to Ronald van der Meer (RVDM).
760 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
762 Added support for private extensions to the OID database
763 (oid_setprivateoids()). Thanks to RVDM.
765 Added optional, physical ANY (key replication)
767 Fixed null-reference problem in GRS-1 output filter.
769 Proximity operator added to Prefix Query Format (PQF).
771 In test client command "base" accepts multiple databases.
773 Fixed bug in cs_close stack that caused trouble with WINSOCK.
777 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
779 Smallish bug-fixes in the new encoders/decoders (explain).
781 Bug fixed in DeleteRequest.
783 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
785 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
787 Added SOIF syntax (using private OID for now) to retrieval module and client.
789 Added Update extended service.
791 Added SearchResult-1 additional info structure.
793 Added optional CCL (ISO8777) interpreter as separate module. Available
796 --- 1.2 1996/6/10 (1st anniversary release)
798 Added Summary record syntax. Lightly tested.
800 Added OPAC record syntax. Untested.
802 Added ResourceReport service encoders/decoders. Untested.
804 Fixed bug in z_Unit - wrong tagging on unitSystem.
806 Fixed bug in the DiagRecs decoder.
808 Added options for max PDU size and session timeout to frontend-server.
810 Added documentation of query-language parsers and other supporting utilities.
812 [frontend-server] Added Attribute set to the bend_scanrequest API.
814 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
815 surrogate diagnostics were generated.
817 [retrieval] Allow multiple local values for attribute.
819 [retrieval] Allow multiple attributes per element in .abs files. index type.
821 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
825 Minor changes, mostly specific to Zebra's requirements (retrieval)
829 Repaired bug in frontend server when running multiple listening
830 endpoints in dynamic mode.
832 z_External() now won't break if a known, ASN.1 value comes encapsulated
833 in an octet-string. The value will pass through unmodified in an Odr_oct.
835 Added a bit of code to the demo client to decode & display
836 ASN.1-structured records represented in the octet-aligned branch of
837 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
839 Added z_ext_getentbyref() to the ASN module. Doc updated.
841 * Completed the SCAN definition in the ASN module. This may break SCAN
842 code based on older YAZ-versions at compile-time. The fix is easy -
845 * Added 'displayTerm' and OtherInformation to the TermInfo structure
846 under the SCAN definition. Remember to initialize this, server-people.
848 Comstack should now support the WAIS protocol in TCP/IP mode. Note
849 that this does not extend to ODR and ASN.
851 Comstack allows insertion of established socket (primarily for
852 inetd-operation of servers). Doc updated.
854 Front-end server can now start from the inetd in TCP mode. Doc
861 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
862 the rank and record number.
864 Adjustments to the frontend server.
866 Fixed diagnostic BER dumper. It ignored the file argument.
870 Various changes to retrieval module.
872 Changed the union discriminators of the protocol files from enums to
873 ints paired with #defines.
875 *Changed oident.class to oident.oclass to avoid a reserved word in C++
878 *Changed operator in the RPN structure to 'roperator', again to avoid a
881 Fixed problems in Explain decoders/encoders.
885 Memory bug in log module fixed.
889 Occasional malloc() of 0 bytes fixed in d1_espec.c.
891 Bug in Explain DatabaseInfo module fixed.
893 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
897 The shift to v1.0 signals that we now consider the *core* functionality
898 of YAZ reasonably stable (the core being more or less equivalent to
899 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
900 tested (Explain not at all - though that will happen soonish).
902 Minor changes to code to support Windows port.
904 Various minor changes after we're getting to use GRS-1 & co. more.
906 Added Espec-1 format.
908 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
909 of the protocol and it cannot be selected when encoding (maps into 'string'
910 when decoding). Needed to talk to some servers.
912 Demo client can request simple element set names.
914 Added Diagnostic Format encoders/decoders.
916 Added simple Close handling to frontend server (no hooks for resource
917 reporting yet), and demonstration client.
919 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
923 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
924 handled incorrectly when records were requested in the searchResponse. This
925 will only affect you if you use the frontend-server.
927 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
928 Test-client will ask for and print GRS1. Ztest will return dummy records
931 Added Explain encoders/decoders to the service-level API. Untested.
933 Added Extended Services: Item Order encoders and decoders to the Service-
934 level API. Untested. We could use a recent copy of the pertinent bits
935 of the ILL protocol to add those bits.
937 Added diagnostic format 1 encoders/decoders to the service-level API.
940 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
941 odr_cons.c, which causes a more correct output.
943 Fixed handling of searchRequest in frontend server. NextResultSetPosition
944 was always set to 0 when no records were requested in the searchRequest.
946 * Added better external-handling. This shouldn't harm old code that
947 *encodes* externals. It can break code that looks for a
948 'single-ASN1-type' representation, since those types that are known
949 are now decoded immediately. Look at the SUTRS sample code in
950 seshigh.c and client.c. Documentation updated.
952 Handling of structured records in bend_fetchresponse. Length -1 marks
953 structured record, type is deduced from format field.
956 Fairly quick maintenance release to add SUTRS support.
958 Fixed handling of SUTRS records in the demonstration client.
960 * Added format field to the bend_fetchrequest and bend_fetchresponce
961 structures of the backend API (frontend server). When the record is
962 returned, the value of the format field is mapped to an OID. The
963 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
964 of the record. The special value VAL_NONE in the bend_request means
965 that no specific format was requested by the client. Documentation
966 updated accordingly. Test server (ztest) will return a fixed dummy
967 SUTRS record if your client requests SUTRS.
969 Documentation updated accordingly.
971 You can now set external libraries and RANLIB support in the top-level
975 First public release.