1 Possible compatibility problems with earlier versions marked with '*'.
3 Reverted modifications for ES Update definition for z_IU0Update
4 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
7 String value attributes for CCL parser.
11 Fix CCL directive @case handling so that it affects string match for
12 both CCL keywords and qualifiers.
14 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
15 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
16 Decoder has been updated with ASN.1 changes as listed in
17 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
18 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
19 z_IUUpdate, remains unchanged.
21 ZOOM_record_get may now return a record in a specific character set.
22 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
23 "from" is the character set of record as returned by target. "to" is
24 the character set to be returned. If omitted, "to" is UTF-8.
26 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
28 New ODR utility, odr_getelement, which returns name of element for
29 which encoding/decoding failed.
31 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
32 in cases where a required element was omitted.
34 Bug fix: some MARC8 sequences were not converted.
36 New ZOOM option "step" which specifies number of records to be
37 retrieved in one chunk. Used in conjunction with "start" and "count".
39 SRW support for yaz-client. Use scheme http: to use it, e.g.
42 yaz-client no longer does (un)intelligent character set conversions
43 by default. Can be enabled with charset and marc_charset commands.
45 xmalloc trace fix for 64-bit systems such as DEC alpha.
47 Solaris 2.6 compile fix.
49 New function, cql_strerror() translates SRW error codes, as returned
50 by cql_transform_error(), into human-readable English strings. Used
51 in yaz-client diagnostics when appropriate.
53 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
54 converts it into a type-1 query which is sent to the server. This
55 makes CQL available for use with all Z-servers, as opposed to the tiny
56 minority that can handle CQL queries themselves.
60 New Debian package layout similar to the Redhat Package layout.
62 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
63 and search result respectively.
67 Redhat package is now several packages: libyaz (runtime libraries),
68 libyaz-devel (development and documentation, and yaz (utility programs).
69 Package spec file by Morten Bøgeskov.
71 New member 'schema' in struct bend_fetch_rr which the name of requested
72 schema (SRW/SRU) for record (or NULL if none was given). The fetch
73 handler MAY set this to reflect the schema of the returned record.
75 New member 'display_term' in struct scan_entry. GFS now sets member entries
76 and allocates scan entries to be filled by user scan handler. In previous
77 version, entries member was allocated by the scan handler. That still works,
78 but the GFS will ignore member display_term - assuming it was NOT set by
79 the handler. The fact that the GFS now allocates the entries both allows
80 for new members and makes a scan handler easier to write.
82 Fix CQL lex buffer overflow.
84 SRW/SRU recordPacking. For SRW default recordPacking is string. For
85 SRU default recordPacking is string.
87 SRU protocol support for frontend server.
89 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
91 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
93 Added scan for the ZOOM shell (zoomsh).
97 * String Identifers for Schemas (Amendment 5).
98 http://lcweb.loc.gov/z3950/agency/amend/am5.html
99 Old definition for schema
100 Odr_oid *schema; /* OPT */
105 Z_InternationalString *uri;
106 #define Z_Schema_oid 1
107 #define Z_Schema_uri 2
110 * resultCount parameter to Sort Response (Amendment 1).
111 http://lcweb.loc.gov/z3950/agency/amend/am1.html
113 Support for SRW 1.0 over HTTP. This is an optional feature and
114 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
117 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
118 on the same port. SRW SearchRetrieveRequests are mapped
119 to bend_init,bend_search,bend_fetch,bend_close.
121 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
123 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
124 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
126 ZOOM connections are SRW based if schem http is used for hostname
127 in connect, e.g. z = ZOOM_connection_new("http://myserver");
128 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
130 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
131 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
132 distance=n, order=true/false, relation=le, prox unit=word. If
133 n is omitted, distance 1 is used.
135 Fixed problem with C compiler include path in wrong order.
137 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
138 on Solaris. Patch from Ko van der Sloot.
140 New MARC decode API. All new functions operate on a yaz_marc_t
141 handle. The most important new functions are: yaz_marc_create,
142 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
143 decode and destroy respectively. Decoder can produce formats
144 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
145 include/yaz/marcdisp.h.
147 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
148 to UTF-8, UCS-32, wchar_t or Latin-1.
150 * Prototypes for yaz_iconv_-functions moved to separate header
151 include/yaz/yaz-iconv.h.
153 Make a few private functions 'static' in unix.c. This prevents
154 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
156 For ZOOM connection, the options targetImplementation{Id,Name,Version}
157 are set when Init Response is received.
159 New function ZOOM_connection_error_x similar to ZOOM_connection_error
160 but returns diagnostic set as well.
162 New function yaz_strerror which is a portable wrapper for
163 strerror/strerror_r/GetLastMessage.
165 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
166 is returned for MARC. If type is "oai", then OAI MARC is returned.
168 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
173 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
175 Fix bad race conditions on SIGTERM and terminate gracefully in
178 Move retrieval (data1) module to Zebra since nobody seems to be
181 Add GRS-1 render for ZOOM using same format as yaz-client.
185 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
187 Fix broken ESpec handling in data1 module.
189 SGML reader parses comments and makes them part of the data1 tree.
191 Added several type casts so that YAZ compiles as C++ code.
193 ZOOM didn't handle PDU encoding failures properly.
195 Added more Bib-1 diagnostics (approved extensions).
197 GNU configure: better check for iconv.
199 More portable use of accept, getpeername. Check for socklen_t. Use
200 int/size_t if socklen_t is not defined.
204 PQF parser rejects bad queries - including those with extra
205 characters in them. PQF parser used to silently ignore that.
206 Cleaner API for PQF added, which allows you to get detailed
207 error information for bad queries (see yaz/pquery.h).
209 Fixed bug in ZOOM_record_get for type "database".
211 Implemented mini iconv library supporting conversions between
212 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
214 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
218 Fixed ZOOM C record cache so that preferredRecordSyntax and
219 elementSetName is used to check for already fetched records.
223 Added three members in bend_initrequest structure to facilitate
224 character set negotiation.
226 Fixed a bug in frontend server that could cause indefinite
227 loops under rare conditions.
229 Revised character set utilities (charneg.h) so that encoding
230 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
232 For PQF, directive @term <type> sets term type for Scan/Search.
233 Here <type> is general, string, numeric, null. The term type
234 is inherited - just like @attr.
236 New call odr_set_charset that sets character set conversion for
237 international-strings on a ODR stream. Prototype is:
238 int odr_set_charset(ODR o, const char *to, const char *from);
239 The InternationalString is still represented as C string in YAZ
240 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
241 won't). On the protocol level, you can use any encoding.
243 Support for UNIX sockets in ZOOM.
245 Solaris recv sometimes returns errno == ENOENT. It is treated as
246 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
248 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
249 both client and server. Code by Morten Bøgeskov.
253 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
254 that they can be used directly from Visual Basic. You must recompile
255 your windows APP if you're using ZOOM.
257 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
258 Commands "lang" and "charset" sets language and character set respectively.
259 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
260 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
262 Attributes from multiple CCL fields may be OR'ed rather than merged
263 using directive "@field or". Fields are still merged by default -
264 equivalent to "@field merge".
266 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
269 Fixed bug in zget for parameter ExtendedServicesResponse.
275 Added PQF feature: '@attr type=value' may be written as '@type=value'.
277 Client displays USR.1:SearchResult-1 (hits per term).
279 Additional Search Info for search in Generic Frontend Server.
281 Fixed CCL parsing of "field=s".
283 WIN32 installer - using the excellent NSIS software from nullsoft.
285 Fixed CCL parsing of "field = - <number>".
287 Added function yaz_marc_decode that decodes MARC for line mode
288 display or XML (similar to that used by JZKit).
290 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
291 Z39.50. But ISO/ILL was, however.
293 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
294 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
296 http://lcweb.loc.gov/z3950/agency/amend/am2.html
297 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
301 New YAZ client features: Command completion and new commands:
302 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
303 Code provided by Jacob Poulsen.
305 New call oid_trav, that visits all registered OIDs via callback.
307 Function ZOOM_record_get now returns const char pointer rather than
308 void pointer. It saves a lot of type casts.
310 For YAZ client, command "auth" now allows you to set authentication
311 in IdPass style. It is enabled when three tokens are given - order
312 is user, group and password.
314 Fix memory leaks in MARC record handling for ZOOM.
316 New option for YAZ client, -k <kilobytes> that sets
317 maximum record size. Similar to -k option for generic frontend
318 server and yaz-ztest.
320 More fixes for scan. Non-zero stepSize handled. OID's fixes.
322 Prefix query parser reports "fail" when bad attribute set is given.
324 Fix in MARC decoder. Proximity logging. Fix for attribute set
325 in scan handler for server. Patches by Shigeru Ishida.
327 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
330 Configure option --with-openssl=<dir> now works when a directory is
331 specified. Patch provided by Morten Bøgeskov.
333 New option for YAZ client, -u <auth>, that sets authentication.
335 ZOOM fix: error information was sometimes "missing", since error
336 was cleared/reset too when it shouldn't.
338 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
342 Scan for ZOOM API. New object ZOOM_scanset. New functions
343 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
344 ZOOM_scanset_destroy.
346 New ZOOM function, ZOOM_connection_last_event, that returns type
347 of last event (such as "receive data", "send data", "apdu received",
350 New ZOOM option, schema, that specifies schema for retrieval.
352 New CCL feature. Qualifiers can be aliases for one or more
353 other qualifiers (if more than one is given, OR is used).
355 ZOOM uses named result sets if target supports it.
357 Two new YAZ client commands: . (dot, which sources a script of YAZ
358 client commands), and ! (to execute shell command.). Implemented
361 Working on Debian packages.
365 YAZ client enables named result sets only if target supports it.
367 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
369 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
370 with key="host" to get same result.
372 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
373 Function Z3950_resultset_record(s) returns references to records
374 "owned" by resultset. To become owner use Z3950_record_clone.
376 Function z_ext_record handles Extended Services. Thanks to
381 CCL Parser fix: ignore token comma when dealing with and-lists.
383 Documentation updates for COMSTACK.
385 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
386 Changed prototype Z3950_records. For some functions, int parameters
387 were changed to size_t.
389 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
392 New MARC decode/display function, marc_display_exl, which properly rejects
393 non-ISO2709 records. YAZ client uses it.
397 Fix bug: local attribute set wasn't set correctly in PQF strings.
401 * Old Z39.50 codecs no longer supported.
403 Added ZOOM C binding. See http://zoom.z3950.org/
405 Renamed states for COMSTACKs to avoid confusion with events.
407 Implemented cs_look and proper cs_rcvconnect.
409 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
411 Configure detects POSIX threads on OpenBSD.
413 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
414 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
416 When error is returned from present handler, non-surrogate diagnostic
417 is returned in present response (and fetch handler is no longer called).
419 * Minor adjustments to pquery parser (PQF). Token characters may be
420 escaped by using backslash (C-style).
422 PQF parser allows string attribute values to be specified. For @attr,
423 non-numeric characters after the equal-sign are treated as strings
424 (e.g. @attr 9=title).
426 CCL trunction character may be defined (@truncation in file)
428 * function zget_ExtendedServicesRequest sets waitAction to
429 waitIfPossible (was wait).
431 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
434 CCL operator names may be set in field definition files (CCL_bibset).
435 See ccl/bib1 for an example.
437 Fixes in ASN.1 compiler for C++ compatibility.
439 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
440 and "op_or" to avoid conflict with C++.
442 Fixed problem with GNU readline detection on Redhat 7.0.
444 Added step-size for Scan backend handler.
446 Fixed bug that made the frontend server crash when no attribute
447 set was specified for scan.
449 Front-end server automatically switches to original working directory
450 when installed as an NT service. Previously -w had to be specified to
453 Added extended attributes for retrieval module (data1), so that data1
454 records carry d1_readXML/SGML attributes. d1_read also supports
455 null-data rules ( <tag/>)
457 On UNIX when POSIX threads are available, a separate library libyazthread
458 is created. Programmers should link with that library and the yaz library
459 when using threads. The reason for the split was that some applications
460 on Linux, such as Apache, doesn't work well when using shared objects that
463 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
464 (or any frontend server) in SSL mode by specifying ssl: followed by
465 address. Only tested on UNIX.
467 Added feature for CCL module. Virtual structure s=al or s=ol generates
468 and-list and or-list respectively instead of phrase search.
472 * Added prefix "yaz_" for the functions log_init.., log_file.. and
473 log_mask_str. This was done to avoid name conflicts with other libraries
474 (such as other PHP extensions).
476 Added raw OID member for preferred record syntax (request_format_raw)
477 and returned record syntax (output_format_raw) for backend fetch method.
479 Config file yaz-config now accepts options so that it returns specific
480 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
482 Shared library support for UNIX using GNU libtool.
484 * Modified backend interface. Request/Response struct's replaced by
485 one read/write C struct. For example bend_fetchrequest and
486 bend_fetchresult have been replaced by single bend_fetch_rr struct.
487 Every handler - even search has to be registered in bend_init
488 handler. This means that the YAZ library no longer refers to
489 external functions and it makes it possible to make the whole
490 thing a single DLL/SO.
492 Added Segment handler for backend server.
494 Added Zmbol/Zebra administrative functions to YAZ client.
496 Threaded frontend server on UNIX (when POSIX Threads are available).
497 Starting the server with option -T enables multi-threading.
501 Added configure option --enable-comp/disable-comp to control use
502 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
503 located in sub directory asn.
505 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
506 in ${exec_prefix}/bin along with the other programs yaz-client and
509 GNU automake used to maintain makefiles.
513 Changed retrieval module so that we can load records with no abstract
514 syntax defined. Tagpaths in these records are fully composed of string
517 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
521 On UNIX, the generated makefile now supports a proper 'make install'.
522 The prefix can be set via GNU configure to set the install location
523 (default is /usr/local).
525 * YAZ programs client and ztest were renamed to yaz-client and
526 yaz-ztest to avoid conflicts when users install YAZ in "standard"
527 locations, such as /usr/bin,/usr/local/bin,etc.
529 * YAZ Header files were moved from include to include/yaz. YAZ Header
530 files are referred to as include <yaz/log.h> rather than <log.h>.
531 The YAZ include path (-I ..) is therefore the same as before. Programmers
532 should update their #include statements or use -Ipath/include/yaz
533 instead. The main motivation for doing this change is that YAZ header files
534 can be installed in "standard" locations /usr/include,/usr/local/include
535 without introducing conflicts, since ALL YAZ header files are stored
536 in subdirectory yaz (under /usr/include for example).
538 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
539 rather than project/workspace files. We switched because project files
540 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
543 Changed name of logging function, logf, to yaz_log, to prevent name
544 clash with some math-log functions. The YAZ header log.h defines logf
545 to yaz_log (#define) so there should be no incompatibilities by this
548 Added bend_start/bend_stop handlers for server. These handler are
549 called on start/stop of server. For windows they are called whenever
550 a service is started/stopped.
552 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
553 a fairly small ASN.1 compiler written in Tcl. The compiler is located
554 in util/yc.tcl. The auto-generated C code structures are, in a few
555 cases, incompatible with the old decoders. There are differences in the
556 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
557 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
558 The preprocessor variable ASN_COMPILED is defined when the compiled
559 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
560 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
561 wish to use the old encoders/decoders you can specify --disable-yc
564 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
565 version so that it supports both new - and old version of DB Update
567 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
568 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
569 change. The name parameter can be set to 0 in which no name is specified
570 for the construction. The macros odr_implicit and odr_explicit sets name
571 parameter to zero for the construction involved. New macros
572 odr_implicit_tag and odr_explicit_tag are similar to the others,
573 except that a name parameter is added. For programmers' that don't use
574 ODR they probably only need to change the call to z_APDU and z_External.
576 Added access control facility by interfacing the TCP wrapper library.
577 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
578 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
579 name of the daemon and enables the access control as specified in
580 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
582 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
583 den Dool <H.M.vdnDool@kub.nl>.
585 Added reference ID parameter to most functions in server API - refer
586 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
588 Changed name of ccl library to libccl.a (was ccl.a).
590 Fixed bug in decoder for Explain (Category TargetInfo).
592 Added support for GNU readline in client. Thanks to Jacob Poulsen
593 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
595 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
596 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
597 IMPLEMENTATION! This change was made to the development version before
598 the ZIG decided to retract the amendment. If any users MUST be
599 compatible with the original Update definition, PLEASE CONTACT US, and
600 we will include a separate definition corresponding to the old Update
601 ES. Note that because of the change to the ASN.1 of the
602 TaskPackageRecordStructure we cannot define a single structure that
603 will support both versions.
605 * Added const modifier to buffer parameter for some ODR/BER encoding
606 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
607 completeWAIS, odr_dumpBER.
609 Fixed bug in client.c which caused a crash when a scanResponse didn't
610 contain positionOfTerm.
612 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
613 * will cause an error in a client if a non-YAZ target sends both a
614 * list of Scan entries and non-surrogate diagnostics.
616 Retrieval module enhancements. Tag sets may be typed in the reference
617 to it. From the .abs-file the "tagset" directive takes a third optional
618 integer type for the tag set referenced. From a .tag-file the "include"
619 directive takes a third optional type as well. The old "type" directive
620 in the tag set itself is still recognized but acts as the default type
623 Backend interface change. Individual Scan terms returned from bend_scan
624 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
625 in include/backend.h.
627 Retrieval module enhancements. Multiple tag sets and attribute sets may
628 be specified in abstract syntax specs. Revised the error/warning for
629 logging messages reported by the retrieval module when reading the
632 Object Identifier system (oid_..) changed. The API is backwards
633 compatible but the oid-routines now allocates new OID's when needed.
634 Raw OID's may be specified in oid_getvalbyname.
636 YAZ now uses GNU configure to generate Makefile(s).
638 * Minor changes in some of the member names of DeleteResultSetRequest and
639 DeleteResultSetResponse. See include/proto.h.
641 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
642 and added member 'languages' in TargetInfo (which was missing).
644 Changed the way attribute sets are handled in the retrieval
645 module. These are now cached, just like the abstract syntaxes
648 Changed YAZ so that it links with compiled ASN.1.
650 Added Explain-schema definitions and mapping routines. The following
651 Explain categories have been implemented: AttributeDetails,
652 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
654 Fixed minor bug in Windows version of Server Library.
656 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
658 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
660 Added EXTERNAL: UNIverse Resource Report (non-standard).
662 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
663 ENUMERATED and SET OF.
665 * Added 'const' to some of the char pointer arguments for the
666 functions, data1_read_node, data1_getelementbytagname,
667 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
670 Fixed bug in data1_insert_taggeddata - the last_child member of
671 parent wasn't initialised.
673 * Changed data1_read_record and data1_read_node so that the supplied
674 "SGML"-buffer is read-only. In particular the resulting data1 - tree
675 doesn't refer to any parts of the "SGML"-buffer.
677 Fixed bug in server library (Windows version of statserv_remove).
679 * Changed code so that it compiles as C++. The type definition
680 of Odr_fun which is a member of Odr_arm was changed. The result is,
681 that an explicit typecast is needed for the fun pointer when
682 using Odr_arm - as in:
683 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
685 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
687 Implemented the new structured date and time definition as approved
688 by the ZIG. Added schemaId element to the specificTag in Espec-1
689 (also approved at the last ZIG). Thanks to RVDM.
691 Added some Object identifiers (RVDM).
693 Changed the Update Extended Service (RVDM).
695 Added command "refid" to client which specifies referenceId for
696 the following requests.
698 Implemented extended service handling for server. See ztest.c
699 for an example as well as backend.h. New handlers are registerd
702 * Changed interface for sort in server.
704 Added new members to statserv_options_block. It allows a server
705 to read options from another source than just the command line. Thanks
706 to Charles Woodfield.
708 * Changed definition of Z_Triple in file prt-grs.h - member boolean
709 renamed to zboolean. Some C++ compilers complained about the name.
711 Minor changes to gils.abs. Added index 's' (sort) on title
712 and date/time-last-modified.
716 Fixed bug in server library regarding inetd mode (-i). This bug
717 was introduced by release 1.4.
721 Added sort facility in client and backend server interface.
723 Fixed problem with dependencies in Makefile(s).
725 Fixed bugs for encoders/decoders of extended services and
728 Implemented sub-tree feature for schemas. Sub-trees are
729 referenced in *.abs-files. See explain.abs for an example
730 of the use of this feature.
732 Modified bib1.att; local attributes for ANY didn't include
733 ANY itself (only affects use of the retrieval module).
735 Fixed bug in plain SGML reader in function data1_read_node:
736 tags with prefix "var" was incorrectly interpreted as variants.
738 Added feature "sub-schemas" to enable references to - and definitions
739 of - group of elements.
741 * Removed member parent from type data1_element (in data1.h).
743 Implemented function odr_nullval() that returns the value of
746 * Removed member num_children from data1_node (in data1.h).
748 Made NT service interface part of the server library. The
749 function statserv_main uses the NT service when required and
750 calls the statserv_start / statserv_close routines.
752 Routine zget_SearchRequest and zget_PresentRequest fills
753 resultSetName/Id member with "default" instead of "Default".
755 Fixed memory leak in server. Request queue member wasn't freed.
757 Fixed nmem_exit so that memory is freed.
761 Revised the CCL parser utility to be thread safe.
763 Added function, oid_ent_to_oid, to replace the function
764 oid_getoidbyent, which is not thread safe.
766 * Added nmem_init and nmem_exit to initialize and release
767 NMEM resources. Function nmem_init should be called once in the
768 initial thread before NMEM/ODR is used. statserv.c and client.c
769 have been changed accordingly. The change was necessary to make
770 NMEM thread safe. The NMEM memory pool is shared amongst threads
771 in a process. Unix-based applications will still work fine without
774 Added NT Services interface for the the Z39.50 (statserv) Server.
775 Refer to the ztest.c source on the usage.
777 Windows 95/NT port using MSVC5.0. Project files are included in the
780 * Defined new 'global' handle for the retrieval (data1) system. The
781 new handled, data1_handle, describes the state of the data1 system.
782 This handle is passed as first argument to virtually all
783 data1 related routines. The functions data1_create and data1_destroy
784 creates and destroys a data1 handle respectively.
786 Added ODR encode stream member to all backend request structures
787 init, search, scan etc. This stream should be used to allocate all
788 memory used for the response when thread safe operation is needed.
790 Changed the comstack utility, cs_addstr, to be thread safe. The
791 returned hostname string returned by the function is now part the
794 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
795 function. The cs_straddr takes a COMSTACK handle as argument, so this
796 function must be used after cs_create and before bind/connect.
797 This function is thread safe.
799 Moved test server to 'ztest' directory - generic server code still
800 in 'server' directory.
802 Made prefix query (pquery.c) utility thread safe.
804 Added new function modifier YAZ_EXPORT to 'export' public DLL
805 functions when using windows (see include/yconfig.h).
807 Added definitions to the OID database (util/oid.c) (RVDM).
809 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
811 Added call to ccl_rpn_delete in client program.
813 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
814 release of RPN structure.
816 Added support for C++, headers uses extern "C" for public definitions.
817 With input from RVDM.
819 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
820 Thanks to Ronald van der Meer (RVDM).
822 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
824 Added support for private extensions to the OID database
825 (oid_setprivateoids()). Thanks to RVDM.
827 Added optional, physical ANY (key replication)
829 Fixed null-reference problem in GRS-1 output filter.
831 Proximity operator added to Prefix Query Format (PQF).
833 In test client command "base" accepts multiple databases.
835 Fixed bug in cs_close stack that caused trouble with WINSOCK.
839 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
841 Smallish bug-fixes in the new encoders/decoders (explain).
843 Bug fixed in DeleteRequest.
845 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
847 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
849 Added SOIF syntax (using private OID for now) to retrieval module and client.
851 Added Update extended service.
853 Added SearchResult-1 additional info structure.
855 Added optional CCL (ISO8777) interpreter as separate module. Available
858 --- 1.2 1996/6/10 (1st anniversary release)
860 Added Summary record syntax. Lightly tested.
862 Added OPAC record syntax. Untested.
864 Added ResourceReport service encoders/decoders. Untested.
866 Fixed bug in z_Unit - wrong tagging on unitSystem.
868 Fixed bug in the DiagRecs decoder.
870 Added options for max PDU size and session timeout to frontend-server.
872 Added documentation of query-language parsers and other supporting utilities.
874 [frontend-server] Added Attribute set to the bend_scanrequest API.
876 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
877 surrogate diagnostics were generated.
879 [retrieval] Allow multiple local values for attribute.
881 [retrieval] Allow multiple attributes per element in .abs files. index type.
883 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
887 Minor changes, mostly specific to Zebra's requirements (retrieval)
891 Repaired bug in frontend server when running multiple listening
892 endpoints in dynamic mode.
894 z_External() now won't break if a known, ASN.1 value comes encapsulated
895 in an octet-string. The value will pass through unmodified in an Odr_oct.
897 Added a bit of code to the demo client to decode & display
898 ASN.1-structured records represented in the octet-aligned branch of
899 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
901 Added z_ext_getentbyref() to the ASN module. Doc updated.
903 * Completed the SCAN definition in the ASN module. This may break SCAN
904 code based on older YAZ-versions at compile-time. The fix is easy -
907 * Added 'displayTerm' and OtherInformation to the TermInfo structure
908 under the SCAN definition. Remember to initialize this, server-people.
910 Comstack should now support the WAIS protocol in TCP/IP mode. Note
911 that this does not extend to ODR and ASN.
913 Comstack allows insertion of established socket (primarily for
914 inetd-operation of servers). Doc updated.
916 Front-end server can now start from the inetd in TCP mode. Doc
923 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
924 the rank and record number.
926 Adjustments to the frontend server.
928 Fixed diagnostic BER dumper. It ignored the file argument.
932 Various changes to retrieval module.
934 Changed the union discriminators of the protocol files from enums to
935 ints paired with #defines.
937 *Changed oident.class to oident.oclass to avoid a reserved word in C++
940 *Changed operator in the RPN structure to 'roperator', again to avoid a
943 Fixed problems in Explain decoders/encoders.
947 Memory bug in log module fixed.
951 Occasional malloc() of 0 bytes fixed in d1_espec.c.
953 Bug in Explain DatabaseInfo module fixed.
955 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
959 The shift to v1.0 signals that we now consider the *core* functionality
960 of YAZ reasonably stable (the core being more or less equivalent to
961 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
962 tested (Explain not at all - though that will happen soonish).
964 Minor changes to code to support Windows port.
966 Various minor changes after we're getting to use GRS-1 & co. more.
968 Added Espec-1 format.
970 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
971 of the protocol and it cannot be selected when encoding (maps into 'string'
972 when decoding). Needed to talk to some servers.
974 Demo client can request simple element set names.
976 Added Diagnostic Format encoders/decoders.
978 Added simple Close handling to frontend server (no hooks for resource
979 reporting yet), and demonstration client.
981 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
985 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
986 handled incorrectly when records were requested in the searchResponse. This
987 will only affect you if you use the frontend-server.
989 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
990 Test-client will ask for and print GRS1. Ztest will return dummy records
993 Added Explain encoders/decoders to the service-level API. Untested.
995 Added Extended Services: Item Order encoders and decoders to the Service-
996 level API. Untested. We could use a recent copy of the pertinent bits
997 of the ILL protocol to add those bits.
999 Added diagnostic format 1 encoders/decoders to the service-level API.
1002 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1003 odr_cons.c, which causes a more correct output.
1005 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1006 was always set to 0 when no records were requested in the searchRequest.
1008 * Added better external-handling. This shouldn't harm old code that
1009 *encodes* externals. It can break code that looks for a
1010 'single-ASN1-type' representation, since those types that are known
1011 are now decoded immediately. Look at the SUTRS sample code in
1012 seshigh.c and client.c. Documentation updated.
1014 Handling of structured records in bend_fetchresponse. Length -1 marks
1015 structured record, type is deduced from format field.
1017 --- 1.0b2 1995/06/27
1018 Fairly quick maintenance release to add SUTRS support.
1020 Fixed handling of SUTRS records in the demonstration client.
1022 * Added format field to the bend_fetchrequest and bend_fetchresponce
1023 structures of the backend API (frontend server). When the record is
1024 returned, the value of the format field is mapped to an OID. The
1025 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1026 of the record. The special value VAL_NONE in the bend_request means
1027 that no specific format was requested by the client. Documentation
1028 updated accordingly. Test server (ztest) will return a fixed dummy
1029 SUTRS record if your client requests SUTRS.
1031 Documentation updated accordingly.
1033 You can now set external libraries and RANLIB support in the top-level
1037 First public release.