1 Possible compatibility problems with earlier versions marked with '*'.
5 Allow any CQL relation (not just all,any,exact,scr).
7 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
8 that features the same UI.
10 Implemented command update0 in YAZ client which is equivalent to
11 update but uses old of Ext Update ASN.1.
13 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
14 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
15 Previously no OID was used for this info.
17 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
18 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
19 returns 'malformed search term' otherwise.
21 SortResponse member resultCount now set to NULL in sort handler of
24 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
27 Add three new utility functions for translating OIDs between various
28 formats -- symbolic name such as "Usmarc", minus-1-terminated int
29 arrays and dotted strings such as "1.2.840.10003.9.5.1":
30 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
31 char *oid_to_dotstring(const int *oid, char *oidbuf);
32 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
34 Reverted modifications for ES Update definition for z_IU0Update
35 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
38 String value attributes for CCL parser.
40 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
41 which their FirstSearch server returns in Init responses, sometimes
42 carrying useful diagnostic information when Init fails. This has the
43 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
44 "z39.50/oclcui.asn", where its definition is somewhat different from
45 what OCLC document on their web-site, as required to interoperate with
48 Support for anonymous authentication in yaz-client. Use the command
51 * Fix the OID of the Index Data-local "admin" Extended Service from
52 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
53 the 1000, which indicates a locally-defined OID, was a mistake.
57 Fix CCL directive @case handling so that it affects string match for
58 both CCL keywords and qualifiers.
60 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
61 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
62 Decoder has been updated with ASN.1 changes as listed in
63 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
64 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
65 z_IUUpdate, remains unchanged.
67 ZOOM_record_get may now return a record in a specific character set.
68 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
69 "from" is the character set of record as returned by target. "to" is
70 the character set to be returned. If omitted, "to" is UTF-8.
72 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
74 New ODR utility, odr_getelement, which returns name of element for
75 which encoding/decoding failed.
77 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
78 in cases where a required element was omitted.
80 Bug fix: some MARC8 sequences were not converted.
82 New ZOOM option "step" which specifies number of records to be
83 retrieved in one chunk. Used in conjunction with "start" and "count".
85 SRW support for yaz-client. Use scheme http: to use it, e.g.
88 yaz-client no longer does (un)intelligent character set conversions
89 by default. Can be enabled with charset and marc_charset commands.
91 xmalloc trace fix for 64-bit systems such as DEC alpha.
93 Solaris 2.6 compile fix.
95 New function, cql_strerror() translates SRW error codes, as returned
96 by cql_transform_error(), into human-readable English strings. Used
97 in yaz-client diagnostics when appropriate.
99 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
100 converts it into a type-1 query which is sent to the server. This
101 makes CQL available for use with all Z-servers, as opposed to the tiny
102 minority that can handle CQL queries themselves.
106 New Debian package layout similar to the Redhat Package layout.
108 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
109 and search result respectively.
113 Redhat package is now several packages: libyaz (runtime libraries),
114 libyaz-devel (development and documentation, and yaz (utility programs).
115 Package spec file by Morten Bøgeskov.
117 New member 'schema' in struct bend_fetch_rr which the name of requested
118 schema (SRW/SRU) for record (or NULL if none was given). The fetch
119 handler MAY set this to reflect the schema of the returned record.
121 New member 'display_term' in struct scan_entry. GFS now sets member entries
122 and allocates scan entries to be filled by user scan handler. In previous
123 version, entries member was allocated by the scan handler. That still works,
124 but the GFS will ignore member display_term - assuming it was NOT set by
125 the handler. The fact that the GFS now allocates the entries both allows
126 for new members and makes a scan handler easier to write.
128 Fix CQL lex buffer overflow.
130 SRW/SRU recordPacking. For SRW default recordPacking is string. For
131 SRU default recordPacking is string.
133 SRU protocol support for frontend server.
135 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
137 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
139 Added scan for the ZOOM shell (zoomsh).
143 * String Identifers for Schemas (Amendment 5).
144 http://lcweb.loc.gov/z3950/agency/amend/am5.html
145 Old definition for schema
146 Odr_oid *schema; /* OPT */
151 Z_InternationalString *uri;
152 #define Z_Schema_oid 1
153 #define Z_Schema_uri 2
156 * resultCount parameter to Sort Response (Amendment 1).
157 http://lcweb.loc.gov/z3950/agency/amend/am1.html
159 Support for SRW 1.0 over HTTP. This is an optional feature and
160 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
163 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
164 on the same port. SRW SearchRetrieveRequests are mapped
165 to bend_init,bend_search,bend_fetch,bend_close.
167 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
169 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
170 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
172 ZOOM connections are SRW based if schem http is used for hostname
173 in connect, e.g. z = ZOOM_connection_new("http://myserver");
174 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
176 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
177 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
178 distance=n, order=true/false, relation=le, prox unit=word. If
179 n is omitted, distance 1 is used.
181 Fixed problem with C compiler include path in wrong order.
183 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
184 on Solaris. Patch from Ko van der Sloot.
186 New MARC decode API. All new functions operate on a yaz_marc_t
187 handle. The most important new functions are: yaz_marc_create,
188 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
189 decode and destroy respectively. Decoder can produce formats
190 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
191 include/yaz/marcdisp.h.
193 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
194 to UTF-8, UCS-32, wchar_t or Latin-1.
196 * Prototypes for yaz_iconv_-functions moved to separate header
197 include/yaz/yaz-iconv.h.
199 Make a few private functions 'static' in unix.c. This prevents
200 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
202 For ZOOM connection, the options targetImplementation{Id,Name,Version}
203 are set when Init Response is received.
205 New function ZOOM_connection_error_x similar to ZOOM_connection_error
206 but returns diagnostic set as well.
208 New function yaz_strerror which is a portable wrapper for
209 strerror/strerror_r/GetLastMessage.
211 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
212 is returned for MARC. If type is "oai", then OAI MARC is returned.
214 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
219 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
221 Fix bad race conditions on SIGTERM and terminate gracefully in
224 Move retrieval (data1) module to Zebra since nobody seems to be
227 Add GRS-1 render for ZOOM using same format as yaz-client.
231 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
233 Fix broken ESpec handling in data1 module.
235 SGML reader parses comments and makes them part of the data1 tree.
237 Added several type casts so that YAZ compiles as C++ code.
239 ZOOM didn't handle PDU encoding failures properly.
241 Added more Bib-1 diagnostics (approved extensions).
243 GNU configure: better check for iconv.
245 More portable use of accept, getpeername. Check for socklen_t. Use
246 int/size_t if socklen_t is not defined.
250 PQF parser rejects bad queries - including those with extra
251 characters in them. PQF parser used to silently ignore that.
252 Cleaner API for PQF added, which allows you to get detailed
253 error information for bad queries (see yaz/pquery.h).
255 Fixed bug in ZOOM_record_get for type "database".
257 Implemented mini iconv library supporting conversions between
258 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
260 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
264 Fixed ZOOM C record cache so that preferredRecordSyntax and
265 elementSetName is used to check for already fetched records.
269 Added three members in bend_initrequest structure to facilitate
270 character set negotiation.
272 Fixed a bug in frontend server that could cause indefinite
273 loops under rare conditions.
275 Revised character set utilities (charneg.h) so that encoding
276 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
278 For PQF, directive @term <type> sets term type for Scan/Search.
279 Here <type> is general, string, numeric, null. The term type
280 is inherited - just like @attr.
282 New call odr_set_charset that sets character set conversion for
283 international-strings on a ODR stream. Prototype is:
284 int odr_set_charset(ODR o, const char *to, const char *from);
285 The InternationalString is still represented as C string in YAZ
286 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
287 won't). On the protocol level, you can use any encoding.
289 Support for UNIX sockets in ZOOM.
291 Solaris recv sometimes returns errno == ENOENT. It is treated as
292 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
294 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
295 both client and server. Code by Morten Bøgeskov.
299 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
300 that they can be used directly from Visual Basic. You must recompile
301 your windows APP if you're using ZOOM.
303 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
304 Commands "lang" and "charset" sets language and character set respectively.
305 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
306 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
308 Attributes from multiple CCL fields may be OR'ed rather than merged
309 using directive "@field or". Fields are still merged by default -
310 equivalent to "@field merge".
312 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
315 Fixed bug in zget for parameter ExtendedServicesResponse.
321 Added PQF feature: '@attr type=value' may be written as '@type=value'.
323 Client displays USR.1:SearchResult-1 (hits per term).
325 Additional Search Info for search in Generic Frontend Server.
327 Fixed CCL parsing of "field=s".
329 WIN32 installer - using the excellent NSIS software from nullsoft.
331 Fixed CCL parsing of "field = - <number>".
333 Added function yaz_marc_decode that decodes MARC for line mode
334 display or XML (similar to that used by JZKit).
336 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
337 Z39.50. But ISO/ILL was, however.
339 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
340 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
342 http://lcweb.loc.gov/z3950/agency/amend/am2.html
343 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
347 New YAZ client features: Command completion and new commands:
348 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
349 Code provided by Jacob Poulsen.
351 New call oid_trav, that visits all registered OIDs via callback.
353 Function ZOOM_record_get now returns const char pointer rather than
354 void pointer. It saves a lot of type casts.
356 For YAZ client, command "auth" now allows you to set authentication
357 in IdPass style. It is enabled when three tokens are given - order
358 is user, group and password.
360 Fix memory leaks in MARC record handling for ZOOM.
362 New option for YAZ client, -k <kilobytes> that sets
363 maximum record size. Similar to -k option for generic frontend
364 server and yaz-ztest.
366 More fixes for scan. Non-zero stepSize handled. OID's fixes.
368 Prefix query parser reports "fail" when bad attribute set is given.
370 Fix in MARC decoder. Proximity logging. Fix for attribute set
371 in scan handler for server. Patches by Shigeru Ishida.
373 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
376 Configure option --with-openssl=<dir> now works when a directory is
377 specified. Patch provided by Morten Bøgeskov.
379 New option for YAZ client, -u <auth>, that sets authentication.
381 ZOOM fix: error information was sometimes "missing", since error
382 was cleared/reset too when it shouldn't.
384 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
388 Scan for ZOOM API. New object ZOOM_scanset. New functions
389 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
390 ZOOM_scanset_destroy.
392 New ZOOM function, ZOOM_connection_last_event, that returns type
393 of last event (such as "receive data", "send data", "apdu received",
396 New ZOOM option, schema, that specifies schema for retrieval.
398 New CCL feature. Qualifiers can be aliases for one or more
399 other qualifiers (if more than one is given, OR is used).
401 ZOOM uses named result sets if target supports it.
403 Two new YAZ client commands: . (dot, which sources a script of YAZ
404 client commands), and ! (to execute shell command.). Implemented
407 Working on Debian packages.
411 YAZ client enables named result sets only if target supports it.
413 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
415 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
416 with key="host" to get same result.
418 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
419 Function Z3950_resultset_record(s) returns references to records
420 "owned" by resultset. To become owner use Z3950_record_clone.
422 Function z_ext_record handles Extended Services. Thanks to
427 CCL Parser fix: ignore token comma when dealing with and-lists.
429 Documentation updates for COMSTACK.
431 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
432 Changed prototype Z3950_records. For some functions, int parameters
433 were changed to size_t.
435 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
438 New MARC decode/display function, marc_display_exl, which properly rejects
439 non-ISO2709 records. YAZ client uses it.
443 Fix bug: local attribute set wasn't set correctly in PQF strings.
447 * Old Z39.50 codecs no longer supported.
449 Added ZOOM C binding. See http://zoom.z3950.org/
451 Renamed states for COMSTACKs to avoid confusion with events.
453 Implemented cs_look and proper cs_rcvconnect.
455 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
457 Configure detects POSIX threads on OpenBSD.
459 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
460 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
462 When error is returned from present handler, non-surrogate diagnostic
463 is returned in present response (and fetch handler is no longer called).
465 * Minor adjustments to pquery parser (PQF). Token characters may be
466 escaped by using backslash (C-style).
468 PQF parser allows string attribute values to be specified. For @attr,
469 non-numeric characters after the equal-sign are treated as strings
470 (e.g. @attr 9=title).
472 CCL trunction character may be defined (@truncation in file)
474 * function zget_ExtendedServicesRequest sets waitAction to
475 waitIfPossible (was wait).
477 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
480 CCL operator names may be set in field definition files (CCL_bibset).
481 See ccl/bib1 for an example.
483 Fixes in ASN.1 compiler for C++ compatibility.
485 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
486 and "op_or" to avoid conflict with C++.
488 Fixed problem with GNU readline detection on Redhat 7.0.
490 Added step-size for Scan backend handler.
492 Fixed bug that made the frontend server crash when no attribute
493 set was specified for scan.
495 Front-end server automatically switches to original working directory
496 when installed as an NT service. Previously -w had to be specified to
499 Added extended attributes for retrieval module (data1), so that data1
500 records carry d1_readXML/SGML attributes. d1_read also supports
501 null-data rules ( <tag/>)
503 On UNIX when POSIX threads are available, a separate library libyazthread
504 is created. Programmers should link with that library and the yaz library
505 when using threads. The reason for the split was that some applications
506 on Linux, such as Apache, doesn't work well when using shared objects that
509 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
510 (or any frontend server) in SSL mode by specifying ssl: followed by
511 address. Only tested on UNIX.
513 Added feature for CCL module. Virtual structure s=al or s=ol generates
514 and-list and or-list respectively instead of phrase search.
518 * Added prefix "yaz_" for the functions log_init.., log_file.. and
519 log_mask_str. This was done to avoid name conflicts with other libraries
520 (such as other PHP extensions).
522 Added raw OID member for preferred record syntax (request_format_raw)
523 and returned record syntax (output_format_raw) for backend fetch method.
525 Config file yaz-config now accepts options so that it returns specific
526 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
528 Shared library support for UNIX using GNU libtool.
530 * Modified backend interface. Request/Response struct's replaced by
531 one read/write C struct. For example bend_fetchrequest and
532 bend_fetchresult have been replaced by single bend_fetch_rr struct.
533 Every handler - even search has to be registered in bend_init
534 handler. This means that the YAZ library no longer refers to
535 external functions and it makes it possible to make the whole
536 thing a single DLL/SO.
538 Added Segment handler for backend server.
540 Added Zmbol/Zebra administrative functions to YAZ client.
542 Threaded frontend server on UNIX (when POSIX Threads are available).
543 Starting the server with option -T enables multi-threading.
547 Added configure option --enable-comp/disable-comp to control use
548 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
549 located in sub directory asn.
551 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
552 in ${exec_prefix}/bin along with the other programs yaz-client and
555 GNU automake used to maintain makefiles.
559 Changed retrieval module so that we can load records with no abstract
560 syntax defined. Tagpaths in these records are fully composed of string
563 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
567 On UNIX, the generated makefile now supports a proper 'make install'.
568 The prefix can be set via GNU configure to set the install location
569 (default is /usr/local).
571 * YAZ programs client and ztest were renamed to yaz-client and
572 yaz-ztest to avoid conflicts when users install YAZ in "standard"
573 locations, such as /usr/bin,/usr/local/bin,etc.
575 * YAZ Header files were moved from include to include/yaz. YAZ Header
576 files are referred to as include <yaz/log.h> rather than <log.h>.
577 The YAZ include path (-I ..) is therefore the same as before. Programmers
578 should update their #include statements or use -Ipath/include/yaz
579 instead. The main motivation for doing this change is that YAZ header files
580 can be installed in "standard" locations /usr/include,/usr/local/include
581 without introducing conflicts, since ALL YAZ header files are stored
582 in subdirectory yaz (under /usr/include for example).
584 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
585 rather than project/workspace files. We switched because project files
586 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
589 Changed name of logging function, logf, to yaz_log, to prevent name
590 clash with some math-log functions. The YAZ header log.h defines logf
591 to yaz_log (#define) so there should be no incompatibilities by this
594 Added bend_start/bend_stop handlers for server. These handler are
595 called on start/stop of server. For windows they are called whenever
596 a service is started/stopped.
598 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
599 a fairly small ASN.1 compiler written in Tcl. The compiler is located
600 in util/yc.tcl. The auto-generated C code structures are, in a few
601 cases, incompatible with the old decoders. There are differences in the
602 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
603 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
604 The preprocessor variable ASN_COMPILED is defined when the compiled
605 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
606 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
607 wish to use the old encoders/decoders you can specify --disable-yc
610 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
611 version so that it supports both new - and old version of DB Update
613 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
614 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
615 change. The name parameter can be set to 0 in which no name is specified
616 for the construction. The macros odr_implicit and odr_explicit sets name
617 parameter to zero for the construction involved. New macros
618 odr_implicit_tag and odr_explicit_tag are similar to the others,
619 except that a name parameter is added. For programmers' that don't use
620 ODR they probably only need to change the call to z_APDU and z_External.
622 Added access control facility by interfacing the TCP wrapper library.
623 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
624 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
625 name of the daemon and enables the access control as specified in
626 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
628 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
629 den Dool <H.M.vdnDool@kub.nl>.
631 Added reference ID parameter to most functions in server API - refer
632 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
634 Changed name of ccl library to libccl.a (was ccl.a).
636 Fixed bug in decoder for Explain (Category TargetInfo).
638 Added support for GNU readline in client. Thanks to Jacob Poulsen
639 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
641 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
642 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
643 IMPLEMENTATION! This change was made to the development version before
644 the ZIG decided to retract the amendment. If any users MUST be
645 compatible with the original Update definition, PLEASE CONTACT US, and
646 we will include a separate definition corresponding to the old Update
647 ES. Note that because of the change to the ASN.1 of the
648 TaskPackageRecordStructure we cannot define a single structure that
649 will support both versions.
651 * Added const modifier to buffer parameter for some ODR/BER encoding
652 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
653 completeWAIS, odr_dumpBER.
655 Fixed bug in client.c which caused a crash when a scanResponse didn't
656 contain positionOfTerm.
658 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
659 * will cause an error in a client if a non-YAZ target sends both a
660 * list of Scan entries and non-surrogate diagnostics.
662 Retrieval module enhancements. Tag sets may be typed in the reference
663 to it. From the .abs-file the "tagset" directive takes a third optional
664 integer type for the tag set referenced. From a .tag-file the "include"
665 directive takes a third optional type as well. The old "type" directive
666 in the tag set itself is still recognized but acts as the default type
669 Backend interface change. Individual Scan terms returned from bend_scan
670 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
671 in include/backend.h.
673 Retrieval module enhancements. Multiple tag sets and attribute sets may
674 be specified in abstract syntax specs. Revised the error/warning for
675 logging messages reported by the retrieval module when reading the
678 Object Identifier system (oid_..) changed. The API is backwards
679 compatible but the oid-routines now allocates new OID's when needed.
680 Raw OID's may be specified in oid_getvalbyname.
682 YAZ now uses GNU configure to generate Makefile(s).
684 * Minor changes in some of the member names of DeleteResultSetRequest and
685 DeleteResultSetResponse. See include/proto.h.
687 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
688 and added member 'languages' in TargetInfo (which was missing).
690 Changed the way attribute sets are handled in the retrieval
691 module. These are now cached, just like the abstract syntaxes
694 Changed YAZ so that it links with compiled ASN.1.
696 Added Explain-schema definitions and mapping routines. The following
697 Explain categories have been implemented: AttributeDetails,
698 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
700 Fixed minor bug in Windows version of Server Library.
702 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
704 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
706 Added EXTERNAL: UNIverse Resource Report (non-standard).
708 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
709 ENUMERATED and SET OF.
711 * Added 'const' to some of the char pointer arguments for the
712 functions, data1_read_node, data1_getelementbytagname,
713 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
716 Fixed bug in data1_insert_taggeddata - the last_child member of
717 parent wasn't initialised.
719 * Changed data1_read_record and data1_read_node so that the supplied
720 "SGML"-buffer is read-only. In particular the resulting data1 - tree
721 doesn't refer to any parts of the "SGML"-buffer.
723 Fixed bug in server library (Windows version of statserv_remove).
725 * Changed code so that it compiles as C++. The type definition
726 of Odr_fun which is a member of Odr_arm was changed. The result is,
727 that an explicit typecast is needed for the fun pointer when
728 using Odr_arm - as in:
729 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
731 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
733 Implemented the new structured date and time definition as approved
734 by the ZIG. Added schemaId element to the specificTag in Espec-1
735 (also approved at the last ZIG). Thanks to RVDM.
737 Added some Object identifiers (RVDM).
739 Changed the Update Extended Service (RVDM).
741 Added command "refid" to client which specifies referenceId for
742 the following requests.
744 Implemented extended service handling for server. See ztest.c
745 for an example as well as backend.h. New handlers are registerd
748 * Changed interface for sort in server.
750 Added new members to statserv_options_block. It allows a server
751 to read options from another source than just the command line. Thanks
752 to Charles Woodfield.
754 * Changed definition of Z_Triple in file prt-grs.h - member boolean
755 renamed to zboolean. Some C++ compilers complained about the name.
757 Minor changes to gils.abs. Added index 's' (sort) on title
758 and date/time-last-modified.
762 Fixed bug in server library regarding inetd mode (-i). This bug
763 was introduced by release 1.4.
767 Added sort facility in client and backend server interface.
769 Fixed problem with dependencies in Makefile(s).
771 Fixed bugs for encoders/decoders of extended services and
774 Implemented sub-tree feature for schemas. Sub-trees are
775 referenced in *.abs-files. See explain.abs for an example
776 of the use of this feature.
778 Modified bib1.att; local attributes for ANY didn't include
779 ANY itself (only affects use of the retrieval module).
781 Fixed bug in plain SGML reader in function data1_read_node:
782 tags with prefix "var" was incorrectly interpreted as variants.
784 Added feature "sub-schemas" to enable references to - and definitions
785 of - group of elements.
787 * Removed member parent from type data1_element (in data1.h).
789 Implemented function odr_nullval() that returns the value of
792 * Removed member num_children from data1_node (in data1.h).
794 Made NT service interface part of the server library. The
795 function statserv_main uses the NT service when required and
796 calls the statserv_start / statserv_close routines.
798 Routine zget_SearchRequest and zget_PresentRequest fills
799 resultSetName/Id member with "default" instead of "Default".
801 Fixed memory leak in server. Request queue member wasn't freed.
803 Fixed nmem_exit so that memory is freed.
807 Revised the CCL parser utility to be thread safe.
809 Added function, oid_ent_to_oid, to replace the function
810 oid_getoidbyent, which is not thread safe.
812 * Added nmem_init and nmem_exit to initialize and release
813 NMEM resources. Function nmem_init should be called once in the
814 initial thread before NMEM/ODR is used. statserv.c and client.c
815 have been changed accordingly. The change was necessary to make
816 NMEM thread safe. The NMEM memory pool is shared amongst threads
817 in a process. Unix-based applications will still work fine without
820 Added NT Services interface for the the Z39.50 (statserv) Server.
821 Refer to the ztest.c source on the usage.
823 Windows 95/NT port using MSVC5.0. Project files are included in the
826 * Defined new 'global' handle for the retrieval (data1) system. The
827 new handled, data1_handle, describes the state of the data1 system.
828 This handle is passed as first argument to virtually all
829 data1 related routines. The functions data1_create and data1_destroy
830 creates and destroys a data1 handle respectively.
832 Added ODR encode stream member to all backend request structures
833 init, search, scan etc. This stream should be used to allocate all
834 memory used for the response when thread safe operation is needed.
836 Changed the comstack utility, cs_addstr, to be thread safe. The
837 returned hostname string returned by the function is now part the
840 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
841 function. The cs_straddr takes a COMSTACK handle as argument, so this
842 function must be used after cs_create and before bind/connect.
843 This function is thread safe.
845 Moved test server to 'ztest' directory - generic server code still
846 in 'server' directory.
848 Made prefix query (pquery.c) utility thread safe.
850 Added new function modifier YAZ_EXPORT to 'export' public DLL
851 functions when using windows (see include/yconfig.h).
853 Added definitions to the OID database (util/oid.c) (RVDM).
855 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
857 Added call to ccl_rpn_delete in client program.
859 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
860 release of RPN structure.
862 Added support for C++, headers uses extern "C" for public definitions.
863 With input from RVDM.
865 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
866 Thanks to Ronald van der Meer (RVDM).
868 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
870 Added support for private extensions to the OID database
871 (oid_setprivateoids()). Thanks to RVDM.
873 Added optional, physical ANY (key replication)
875 Fixed null-reference problem in GRS-1 output filter.
877 Proximity operator added to Prefix Query Format (PQF).
879 In test client command "base" accepts multiple databases.
881 Fixed bug in cs_close stack that caused trouble with WINSOCK.
885 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
887 Smallish bug-fixes in the new encoders/decoders (explain).
889 Bug fixed in DeleteRequest.
891 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
893 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
895 Added SOIF syntax (using private OID for now) to retrieval module and client.
897 Added Update extended service.
899 Added SearchResult-1 additional info structure.
901 Added optional CCL (ISO8777) interpreter as separate module. Available
904 --- 1.2 1996/6/10 (1st anniversary release)
906 Added Summary record syntax. Lightly tested.
908 Added OPAC record syntax. Untested.
910 Added ResourceReport service encoders/decoders. Untested.
912 Fixed bug in z_Unit - wrong tagging on unitSystem.
914 Fixed bug in the DiagRecs decoder.
916 Added options for max PDU size and session timeout to frontend-server.
918 Added documentation of query-language parsers and other supporting utilities.
920 [frontend-server] Added Attribute set to the bend_scanrequest API.
922 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
923 surrogate diagnostics were generated.
925 [retrieval] Allow multiple local values for attribute.
927 [retrieval] Allow multiple attributes per element in .abs files. index type.
929 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
933 Minor changes, mostly specific to Zebra's requirements (retrieval)
937 Repaired bug in frontend server when running multiple listening
938 endpoints in dynamic mode.
940 z_External() now won't break if a known, ASN.1 value comes encapsulated
941 in an octet-string. The value will pass through unmodified in an Odr_oct.
943 Added a bit of code to the demo client to decode & display
944 ASN.1-structured records represented in the octet-aligned branch of
945 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
947 Added z_ext_getentbyref() to the ASN module. Doc updated.
949 * Completed the SCAN definition in the ASN module. This may break SCAN
950 code based on older YAZ-versions at compile-time. The fix is easy -
953 * Added 'displayTerm' and OtherInformation to the TermInfo structure
954 under the SCAN definition. Remember to initialize this, server-people.
956 Comstack should now support the WAIS protocol in TCP/IP mode. Note
957 that this does not extend to ODR and ASN.
959 Comstack allows insertion of established socket (primarily for
960 inetd-operation of servers). Doc updated.
962 Front-end server can now start from the inetd in TCP mode. Doc
969 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
970 the rank and record number.
972 Adjustments to the frontend server.
974 Fixed diagnostic BER dumper. It ignored the file argument.
978 Various changes to retrieval module.
980 Changed the union discriminators of the protocol files from enums to
981 ints paired with #defines.
983 *Changed oident.class to oident.oclass to avoid a reserved word in C++
986 *Changed operator in the RPN structure to 'roperator', again to avoid a
989 Fixed problems in Explain decoders/encoders.
993 Memory bug in log module fixed.
997 Occasional malloc() of 0 bytes fixed in d1_espec.c.
999 Bug in Explain DatabaseInfo module fixed.
1001 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1005 The shift to v1.0 signals that we now consider the *core* functionality
1006 of YAZ reasonably stable (the core being more or less equivalent to
1007 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1008 tested (Explain not at all - though that will happen soonish).
1010 Minor changes to code to support Windows port.
1012 Various minor changes after we're getting to use GRS-1 & co. more.
1014 Added Espec-1 format.
1016 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1017 of the protocol and it cannot be selected when encoding (maps into 'string'
1018 when decoding). Needed to talk to some servers.
1020 Demo client can request simple element set names.
1022 Added Diagnostic Format encoders/decoders.
1024 Added simple Close handling to frontend server (no hooks for resource
1025 reporting yet), and demonstration client.
1027 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1029 --- 1.0b3 1995/08/24
1031 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1032 handled incorrectly when records were requested in the searchResponse. This
1033 will only affect you if you use the frontend-server.
1035 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1036 Test-client will ask for and print GRS1. Ztest will return dummy records
1039 Added Explain encoders/decoders to the service-level API. Untested.
1041 Added Extended Services: Item Order encoders and decoders to the Service-
1042 level API. Untested. We could use a recent copy of the pertinent bits
1043 of the ILL protocol to add those bits.
1045 Added diagnostic format 1 encoders/decoders to the service-level API.
1048 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1049 odr_cons.c, which causes a more correct output.
1051 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1052 was always set to 0 when no records were requested in the searchRequest.
1054 * Added better external-handling. This shouldn't harm old code that
1055 *encodes* externals. It can break code that looks for a
1056 'single-ASN1-type' representation, since those types that are known
1057 are now decoded immediately. Look at the SUTRS sample code in
1058 seshigh.c and client.c. Documentation updated.
1060 Handling of structured records in bend_fetchresponse. Length -1 marks
1061 structured record, type is deduced from format field.
1063 --- 1.0b2 1995/06/27
1064 Fairly quick maintenance release to add SUTRS support.
1066 Fixed handling of SUTRS records in the demonstration client.
1068 * Added format field to the bend_fetchrequest and bend_fetchresponce
1069 structures of the backend API (frontend server). When the record is
1070 returned, the value of the format field is mapped to an OID. The
1071 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1072 of the record. The special value VAL_NONE in the bend_request means
1073 that no specific format was requested by the client. Documentation
1074 updated accordingly. Test server (ztest) will return a fixed dummy
1075 SUTRS record if your client requests SUTRS.
1077 Documentation updated accordingly.
1079 You can now set external libraries and RANLIB support in the top-level
1083 First public release.