1 Possible compatibility problems with earlier versions marked with '*'.
5 SortResponse member resultCount now set to NULL in sort handler of
8 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
11 Add three new utility functions for translating OIDs between various
12 formats -- symbolic name such as "Usmarc", minus-1-terminated int
13 arrays and dotted strings such as "1.2.840.10003.9.5.1":
14 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
15 char *oid_to_dotstring(const int *oid, char *oidbuf);
16 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
18 Reverted modifications for ES Update definition for z_IU0Update
19 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
22 String value attributes for CCL parser.
24 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
25 which their FirstSearch server returns in Init responses, sometimes
26 carrying useful diagnostic information when Init fails. This has the
27 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
28 "z39.50/oclcui.asn", where its definition is somewhat different from
29 what OCLC document on their web-site, as required to interoperate with
32 Support for anonymous authentication in yaz-client. Use the command
35 * Fix the OID of the Index Data-local "admin" Extended Service from
36 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
37 the 1000, which indicates a locally-defined OID, was a mistake.
41 Fix CCL directive @case handling so that it affects string match for
42 both CCL keywords and qualifiers.
44 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
45 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
46 Decoder has been updated with ASN.1 changes as listed in
47 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
48 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
49 z_IUUpdate, remains unchanged.
51 ZOOM_record_get may now return a record in a specific character set.
52 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
53 "from" is the character set of record as returned by target. "to" is
54 the character set to be returned. If omitted, "to" is UTF-8.
56 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
58 New ODR utility, odr_getelement, which returns name of element for
59 which encoding/decoding failed.
61 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
62 in cases where a required element was omitted.
64 Bug fix: some MARC8 sequences were not converted.
66 New ZOOM option "step" which specifies number of records to be
67 retrieved in one chunk. Used in conjunction with "start" and "count".
69 SRW support for yaz-client. Use scheme http: to use it, e.g.
72 yaz-client no longer does (un)intelligent character set conversions
73 by default. Can be enabled with charset and marc_charset commands.
75 xmalloc trace fix for 64-bit systems such as DEC alpha.
77 Solaris 2.6 compile fix.
79 New function, cql_strerror() translates SRW error codes, as returned
80 by cql_transform_error(), into human-readable English strings. Used
81 in yaz-client diagnostics when appropriate.
83 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
84 converts it into a type-1 query which is sent to the server. This
85 makes CQL available for use with all Z-servers, as opposed to the tiny
86 minority that can handle CQL queries themselves.
90 New Debian package layout similar to the Redhat Package layout.
92 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
93 and search result respectively.
97 Redhat package is now several packages: libyaz (runtime libraries),
98 libyaz-devel (development and documentation, and yaz (utility programs).
99 Package spec file by Morten Bøgeskov.
101 New member 'schema' in struct bend_fetch_rr which the name of requested
102 schema (SRW/SRU) for record (or NULL if none was given). The fetch
103 handler MAY set this to reflect the schema of the returned record.
105 New member 'display_term' in struct scan_entry. GFS now sets member entries
106 and allocates scan entries to be filled by user scan handler. In previous
107 version, entries member was allocated by the scan handler. That still works,
108 but the GFS will ignore member display_term - assuming it was NOT set by
109 the handler. The fact that the GFS now allocates the entries both allows
110 for new members and makes a scan handler easier to write.
112 Fix CQL lex buffer overflow.
114 SRW/SRU recordPacking. For SRW default recordPacking is string. For
115 SRU default recordPacking is string.
117 SRU protocol support for frontend server.
119 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
121 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
123 Added scan for the ZOOM shell (zoomsh).
127 * String Identifers for Schemas (Amendment 5).
128 http://lcweb.loc.gov/z3950/agency/amend/am5.html
129 Old definition for schema
130 Odr_oid *schema; /* OPT */
135 Z_InternationalString *uri;
136 #define Z_Schema_oid 1
137 #define Z_Schema_uri 2
140 * resultCount parameter to Sort Response (Amendment 1).
141 http://lcweb.loc.gov/z3950/agency/amend/am1.html
143 Support for SRW 1.0 over HTTP. This is an optional feature and
144 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
147 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
148 on the same port. SRW SearchRetrieveRequests are mapped
149 to bend_init,bend_search,bend_fetch,bend_close.
151 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
153 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
154 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
156 ZOOM connections are SRW based if schem http is used for hostname
157 in connect, e.g. z = ZOOM_connection_new("http://myserver");
158 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
160 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
161 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
162 distance=n, order=true/false, relation=le, prox unit=word. If
163 n is omitted, distance 1 is used.
165 Fixed problem with C compiler include path in wrong order.
167 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
168 on Solaris. Patch from Ko van der Sloot.
170 New MARC decode API. All new functions operate on a yaz_marc_t
171 handle. The most important new functions are: yaz_marc_create,
172 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
173 decode and destroy respectively. Decoder can produce formats
174 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
175 include/yaz/marcdisp.h.
177 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
178 to UTF-8, UCS-32, wchar_t or Latin-1.
180 * Prototypes for yaz_iconv_-functions moved to separate header
181 include/yaz/yaz-iconv.h.
183 Make a few private functions 'static' in unix.c. This prevents
184 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
186 For ZOOM connection, the options targetImplementation{Id,Name,Version}
187 are set when Init Response is received.
189 New function ZOOM_connection_error_x similar to ZOOM_connection_error
190 but returns diagnostic set as well.
192 New function yaz_strerror which is a portable wrapper for
193 strerror/strerror_r/GetLastMessage.
195 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
196 is returned for MARC. If type is "oai", then OAI MARC is returned.
198 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
203 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
205 Fix bad race conditions on SIGTERM and terminate gracefully in
208 Move retrieval (data1) module to Zebra since nobody seems to be
211 Add GRS-1 render for ZOOM using same format as yaz-client.
215 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
217 Fix broken ESpec handling in data1 module.
219 SGML reader parses comments and makes them part of the data1 tree.
221 Added several type casts so that YAZ compiles as C++ code.
223 ZOOM didn't handle PDU encoding failures properly.
225 Added more Bib-1 diagnostics (approved extensions).
227 GNU configure: better check for iconv.
229 More portable use of accept, getpeername. Check for socklen_t. Use
230 int/size_t if socklen_t is not defined.
234 PQF parser rejects bad queries - including those with extra
235 characters in them. PQF parser used to silently ignore that.
236 Cleaner API for PQF added, which allows you to get detailed
237 error information for bad queries (see yaz/pquery.h).
239 Fixed bug in ZOOM_record_get for type "database".
241 Implemented mini iconv library supporting conversions between
242 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
244 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
248 Fixed ZOOM C record cache so that preferredRecordSyntax and
249 elementSetName is used to check for already fetched records.
253 Added three members in bend_initrequest structure to facilitate
254 character set negotiation.
256 Fixed a bug in frontend server that could cause indefinite
257 loops under rare conditions.
259 Revised character set utilities (charneg.h) so that encoding
260 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
262 For PQF, directive @term <type> sets term type for Scan/Search.
263 Here <type> is general, string, numeric, null. The term type
264 is inherited - just like @attr.
266 New call odr_set_charset that sets character set conversion for
267 international-strings on a ODR stream. Prototype is:
268 int odr_set_charset(ODR o, const char *to, const char *from);
269 The InternationalString is still represented as C string in YAZ
270 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
271 won't). On the protocol level, you can use any encoding.
273 Support for UNIX sockets in ZOOM.
275 Solaris recv sometimes returns errno == ENOENT. It is treated as
276 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
278 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
279 both client and server. Code by Morten Bøgeskov.
283 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
284 that they can be used directly from Visual Basic. You must recompile
285 your windows APP if you're using ZOOM.
287 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
288 Commands "lang" and "charset" sets language and character set respectively.
289 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
290 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
292 Attributes from multiple CCL fields may be OR'ed rather than merged
293 using directive "@field or". Fields are still merged by default -
294 equivalent to "@field merge".
296 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
299 Fixed bug in zget for parameter ExtendedServicesResponse.
305 Added PQF feature: '@attr type=value' may be written as '@type=value'.
307 Client displays USR.1:SearchResult-1 (hits per term).
309 Additional Search Info for search in Generic Frontend Server.
311 Fixed CCL parsing of "field=s".
313 WIN32 installer - using the excellent NSIS software from nullsoft.
315 Fixed CCL parsing of "field = - <number>".
317 Added function yaz_marc_decode that decodes MARC for line mode
318 display or XML (similar to that used by JZKit).
320 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
321 Z39.50. But ISO/ILL was, however.
323 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
324 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
326 http://lcweb.loc.gov/z3950/agency/amend/am2.html
327 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
331 New YAZ client features: Command completion and new commands:
332 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
333 Code provided by Jacob Poulsen.
335 New call oid_trav, that visits all registered OIDs via callback.
337 Function ZOOM_record_get now returns const char pointer rather than
338 void pointer. It saves a lot of type casts.
340 For YAZ client, command "auth" now allows you to set authentication
341 in IdPass style. It is enabled when three tokens are given - order
342 is user, group and password.
344 Fix memory leaks in MARC record handling for ZOOM.
346 New option for YAZ client, -k <kilobytes> that sets
347 maximum record size. Similar to -k option for generic frontend
348 server and yaz-ztest.
350 More fixes for scan. Non-zero stepSize handled. OID's fixes.
352 Prefix query parser reports "fail" when bad attribute set is given.
354 Fix in MARC decoder. Proximity logging. Fix for attribute set
355 in scan handler for server. Patches by Shigeru Ishida.
357 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
360 Configure option --with-openssl=<dir> now works when a directory is
361 specified. Patch provided by Morten Bøgeskov.
363 New option for YAZ client, -u <auth>, that sets authentication.
365 ZOOM fix: error information was sometimes "missing", since error
366 was cleared/reset too when it shouldn't.
368 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
372 Scan for ZOOM API. New object ZOOM_scanset. New functions
373 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
374 ZOOM_scanset_destroy.
376 New ZOOM function, ZOOM_connection_last_event, that returns type
377 of last event (such as "receive data", "send data", "apdu received",
380 New ZOOM option, schema, that specifies schema for retrieval.
382 New CCL feature. Qualifiers can be aliases for one or more
383 other qualifiers (if more than one is given, OR is used).
385 ZOOM uses named result sets if target supports it.
387 Two new YAZ client commands: . (dot, which sources a script of YAZ
388 client commands), and ! (to execute shell command.). Implemented
391 Working on Debian packages.
395 YAZ client enables named result sets only if target supports it.
397 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
399 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
400 with key="host" to get same result.
402 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
403 Function Z3950_resultset_record(s) returns references to records
404 "owned" by resultset. To become owner use Z3950_record_clone.
406 Function z_ext_record handles Extended Services. Thanks to
411 CCL Parser fix: ignore token comma when dealing with and-lists.
413 Documentation updates for COMSTACK.
415 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
416 Changed prototype Z3950_records. For some functions, int parameters
417 were changed to size_t.
419 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
422 New MARC decode/display function, marc_display_exl, which properly rejects
423 non-ISO2709 records. YAZ client uses it.
427 Fix bug: local attribute set wasn't set correctly in PQF strings.
431 * Old Z39.50 codecs no longer supported.
433 Added ZOOM C binding. See http://zoom.z3950.org/
435 Renamed states for COMSTACKs to avoid confusion with events.
437 Implemented cs_look and proper cs_rcvconnect.
439 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
441 Configure detects POSIX threads on OpenBSD.
443 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
444 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
446 When error is returned from present handler, non-surrogate diagnostic
447 is returned in present response (and fetch handler is no longer called).
449 * Minor adjustments to pquery parser (PQF). Token characters may be
450 escaped by using backslash (C-style).
452 PQF parser allows string attribute values to be specified. For @attr,
453 non-numeric characters after the equal-sign are treated as strings
454 (e.g. @attr 9=title).
456 CCL trunction character may be defined (@truncation in file)
458 * function zget_ExtendedServicesRequest sets waitAction to
459 waitIfPossible (was wait).
461 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
464 CCL operator names may be set in field definition files (CCL_bibset).
465 See ccl/bib1 for an example.
467 Fixes in ASN.1 compiler for C++ compatibility.
469 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
470 and "op_or" to avoid conflict with C++.
472 Fixed problem with GNU readline detection on Redhat 7.0.
474 Added step-size for Scan backend handler.
476 Fixed bug that made the frontend server crash when no attribute
477 set was specified for scan.
479 Front-end server automatically switches to original working directory
480 when installed as an NT service. Previously -w had to be specified to
483 Added extended attributes for retrieval module (data1), so that data1
484 records carry d1_readXML/SGML attributes. d1_read also supports
485 null-data rules ( <tag/>)
487 On UNIX when POSIX threads are available, a separate library libyazthread
488 is created. Programmers should link with that library and the yaz library
489 when using threads. The reason for the split was that some applications
490 on Linux, such as Apache, doesn't work well when using shared objects that
493 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
494 (or any frontend server) in SSL mode by specifying ssl: followed by
495 address. Only tested on UNIX.
497 Added feature for CCL module. Virtual structure s=al or s=ol generates
498 and-list and or-list respectively instead of phrase search.
502 * Added prefix "yaz_" for the functions log_init.., log_file.. and
503 log_mask_str. This was done to avoid name conflicts with other libraries
504 (such as other PHP extensions).
506 Added raw OID member for preferred record syntax (request_format_raw)
507 and returned record syntax (output_format_raw) for backend fetch method.
509 Config file yaz-config now accepts options so that it returns specific
510 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
512 Shared library support for UNIX using GNU libtool.
514 * Modified backend interface. Request/Response struct's replaced by
515 one read/write C struct. For example bend_fetchrequest and
516 bend_fetchresult have been replaced by single bend_fetch_rr struct.
517 Every handler - even search has to be registered in bend_init
518 handler. This means that the YAZ library no longer refers to
519 external functions and it makes it possible to make the whole
520 thing a single DLL/SO.
522 Added Segment handler for backend server.
524 Added Zmbol/Zebra administrative functions to YAZ client.
526 Threaded frontend server on UNIX (when POSIX Threads are available).
527 Starting the server with option -T enables multi-threading.
531 Added configure option --enable-comp/disable-comp to control use
532 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
533 located in sub directory asn.
535 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
536 in ${exec_prefix}/bin along with the other programs yaz-client and
539 GNU automake used to maintain makefiles.
543 Changed retrieval module so that we can load records with no abstract
544 syntax defined. Tagpaths in these records are fully composed of string
547 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
551 On UNIX, the generated makefile now supports a proper 'make install'.
552 The prefix can be set via GNU configure to set the install location
553 (default is /usr/local).
555 * YAZ programs client and ztest were renamed to yaz-client and
556 yaz-ztest to avoid conflicts when users install YAZ in "standard"
557 locations, such as /usr/bin,/usr/local/bin,etc.
559 * YAZ Header files were moved from include to include/yaz. YAZ Header
560 files are referred to as include <yaz/log.h> rather than <log.h>.
561 The YAZ include path (-I ..) is therefore the same as before. Programmers
562 should update their #include statements or use -Ipath/include/yaz
563 instead. The main motivation for doing this change is that YAZ header files
564 can be installed in "standard" locations /usr/include,/usr/local/include
565 without introducing conflicts, since ALL YAZ header files are stored
566 in subdirectory yaz (under /usr/include for example).
568 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
569 rather than project/workspace files. We switched because project files
570 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
573 Changed name of logging function, logf, to yaz_log, to prevent name
574 clash with some math-log functions. The YAZ header log.h defines logf
575 to yaz_log (#define) so there should be no incompatibilities by this
578 Added bend_start/bend_stop handlers for server. These handler are
579 called on start/stop of server. For windows they are called whenever
580 a service is started/stopped.
582 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
583 a fairly small ASN.1 compiler written in Tcl. The compiler is located
584 in util/yc.tcl. The auto-generated C code structures are, in a few
585 cases, incompatible with the old decoders. There are differences in the
586 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
587 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
588 The preprocessor variable ASN_COMPILED is defined when the compiled
589 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
590 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
591 wish to use the old encoders/decoders you can specify --disable-yc
594 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
595 version so that it supports both new - and old version of DB Update
597 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
598 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
599 change. The name parameter can be set to 0 in which no name is specified
600 for the construction. The macros odr_implicit and odr_explicit sets name
601 parameter to zero for the construction involved. New macros
602 odr_implicit_tag and odr_explicit_tag are similar to the others,
603 except that a name parameter is added. For programmers' that don't use
604 ODR they probably only need to change the call to z_APDU and z_External.
606 Added access control facility by interfacing the TCP wrapper library.
607 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
608 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
609 name of the daemon and enables the access control as specified in
610 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
612 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
613 den Dool <H.M.vdnDool@kub.nl>.
615 Added reference ID parameter to most functions in server API - refer
616 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
618 Changed name of ccl library to libccl.a (was ccl.a).
620 Fixed bug in decoder for Explain (Category TargetInfo).
622 Added support for GNU readline in client. Thanks to Jacob Poulsen
623 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
625 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
626 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
627 IMPLEMENTATION! This change was made to the development version before
628 the ZIG decided to retract the amendment. If any users MUST be
629 compatible with the original Update definition, PLEASE CONTACT US, and
630 we will include a separate definition corresponding to the old Update
631 ES. Note that because of the change to the ASN.1 of the
632 TaskPackageRecordStructure we cannot define a single structure that
633 will support both versions.
635 * Added const modifier to buffer parameter for some ODR/BER encoding
636 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
637 completeWAIS, odr_dumpBER.
639 Fixed bug in client.c which caused a crash when a scanResponse didn't
640 contain positionOfTerm.
642 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
643 * will cause an error in a client if a non-YAZ target sends both a
644 * list of Scan entries and non-surrogate diagnostics.
646 Retrieval module enhancements. Tag sets may be typed in the reference
647 to it. From the .abs-file the "tagset" directive takes a third optional
648 integer type for the tag set referenced. From a .tag-file the "include"
649 directive takes a third optional type as well. The old "type" directive
650 in the tag set itself is still recognized but acts as the default type
653 Backend interface change. Individual Scan terms returned from bend_scan
654 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
655 in include/backend.h.
657 Retrieval module enhancements. Multiple tag sets and attribute sets may
658 be specified in abstract syntax specs. Revised the error/warning for
659 logging messages reported by the retrieval module when reading the
662 Object Identifier system (oid_..) changed. The API is backwards
663 compatible but the oid-routines now allocates new OID's when needed.
664 Raw OID's may be specified in oid_getvalbyname.
666 YAZ now uses GNU configure to generate Makefile(s).
668 * Minor changes in some of the member names of DeleteResultSetRequest and
669 DeleteResultSetResponse. See include/proto.h.
671 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
672 and added member 'languages' in TargetInfo (which was missing).
674 Changed the way attribute sets are handled in the retrieval
675 module. These are now cached, just like the abstract syntaxes
678 Changed YAZ so that it links with compiled ASN.1.
680 Added Explain-schema definitions and mapping routines. The following
681 Explain categories have been implemented: AttributeDetails,
682 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
684 Fixed minor bug in Windows version of Server Library.
686 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
688 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
690 Added EXTERNAL: UNIverse Resource Report (non-standard).
692 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
693 ENUMERATED and SET OF.
695 * Added 'const' to some of the char pointer arguments for the
696 functions, data1_read_node, data1_getelementbytagname,
697 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
700 Fixed bug in data1_insert_taggeddata - the last_child member of
701 parent wasn't initialised.
703 * Changed data1_read_record and data1_read_node so that the supplied
704 "SGML"-buffer is read-only. In particular the resulting data1 - tree
705 doesn't refer to any parts of the "SGML"-buffer.
707 Fixed bug in server library (Windows version of statserv_remove).
709 * Changed code so that it compiles as C++. The type definition
710 of Odr_fun which is a member of Odr_arm was changed. The result is,
711 that an explicit typecast is needed for the fun pointer when
712 using Odr_arm - as in:
713 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
715 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
717 Implemented the new structured date and time definition as approved
718 by the ZIG. Added schemaId element to the specificTag in Espec-1
719 (also approved at the last ZIG). Thanks to RVDM.
721 Added some Object identifiers (RVDM).
723 Changed the Update Extended Service (RVDM).
725 Added command "refid" to client which specifies referenceId for
726 the following requests.
728 Implemented extended service handling for server. See ztest.c
729 for an example as well as backend.h. New handlers are registerd
732 * Changed interface for sort in server.
734 Added new members to statserv_options_block. It allows a server
735 to read options from another source than just the command line. Thanks
736 to Charles Woodfield.
738 * Changed definition of Z_Triple in file prt-grs.h - member boolean
739 renamed to zboolean. Some C++ compilers complained about the name.
741 Minor changes to gils.abs. Added index 's' (sort) on title
742 and date/time-last-modified.
746 Fixed bug in server library regarding inetd mode (-i). This bug
747 was introduced by release 1.4.
751 Added sort facility in client and backend server interface.
753 Fixed problem with dependencies in Makefile(s).
755 Fixed bugs for encoders/decoders of extended services and
758 Implemented sub-tree feature for schemas. Sub-trees are
759 referenced in *.abs-files. See explain.abs for an example
760 of the use of this feature.
762 Modified bib1.att; local attributes for ANY didn't include
763 ANY itself (only affects use of the retrieval module).
765 Fixed bug in plain SGML reader in function data1_read_node:
766 tags with prefix "var" was incorrectly interpreted as variants.
768 Added feature "sub-schemas" to enable references to - and definitions
769 of - group of elements.
771 * Removed member parent from type data1_element (in data1.h).
773 Implemented function odr_nullval() that returns the value of
776 * Removed member num_children from data1_node (in data1.h).
778 Made NT service interface part of the server library. The
779 function statserv_main uses the NT service when required and
780 calls the statserv_start / statserv_close routines.
782 Routine zget_SearchRequest and zget_PresentRequest fills
783 resultSetName/Id member with "default" instead of "Default".
785 Fixed memory leak in server. Request queue member wasn't freed.
787 Fixed nmem_exit so that memory is freed.
791 Revised the CCL parser utility to be thread safe.
793 Added function, oid_ent_to_oid, to replace the function
794 oid_getoidbyent, which is not thread safe.
796 * Added nmem_init and nmem_exit to initialize and release
797 NMEM resources. Function nmem_init should be called once in the
798 initial thread before NMEM/ODR is used. statserv.c and client.c
799 have been changed accordingly. The change was necessary to make
800 NMEM thread safe. The NMEM memory pool is shared amongst threads
801 in a process. Unix-based applications will still work fine without
804 Added NT Services interface for the the Z39.50 (statserv) Server.
805 Refer to the ztest.c source on the usage.
807 Windows 95/NT port using MSVC5.0. Project files are included in the
810 * Defined new 'global' handle for the retrieval (data1) system. The
811 new handled, data1_handle, describes the state of the data1 system.
812 This handle is passed as first argument to virtually all
813 data1 related routines. The functions data1_create and data1_destroy
814 creates and destroys a data1 handle respectively.
816 Added ODR encode stream member to all backend request structures
817 init, search, scan etc. This stream should be used to allocate all
818 memory used for the response when thread safe operation is needed.
820 Changed the comstack utility, cs_addstr, to be thread safe. The
821 returned hostname string returned by the function is now part the
824 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
825 function. The cs_straddr takes a COMSTACK handle as argument, so this
826 function must be used after cs_create and before bind/connect.
827 This function is thread safe.
829 Moved test server to 'ztest' directory - generic server code still
830 in 'server' directory.
832 Made prefix query (pquery.c) utility thread safe.
834 Added new function modifier YAZ_EXPORT to 'export' public DLL
835 functions when using windows (see include/yconfig.h).
837 Added definitions to the OID database (util/oid.c) (RVDM).
839 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
841 Added call to ccl_rpn_delete in client program.
843 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
844 release of RPN structure.
846 Added support for C++, headers uses extern "C" for public definitions.
847 With input from RVDM.
849 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
850 Thanks to Ronald van der Meer (RVDM).
852 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
854 Added support for private extensions to the OID database
855 (oid_setprivateoids()). Thanks to RVDM.
857 Added optional, physical ANY (key replication)
859 Fixed null-reference problem in GRS-1 output filter.
861 Proximity operator added to Prefix Query Format (PQF).
863 In test client command "base" accepts multiple databases.
865 Fixed bug in cs_close stack that caused trouble with WINSOCK.
869 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
871 Smallish bug-fixes in the new encoders/decoders (explain).
873 Bug fixed in DeleteRequest.
875 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
877 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
879 Added SOIF syntax (using private OID for now) to retrieval module and client.
881 Added Update extended service.
883 Added SearchResult-1 additional info structure.
885 Added optional CCL (ISO8777) interpreter as separate module. Available
888 --- 1.2 1996/6/10 (1st anniversary release)
890 Added Summary record syntax. Lightly tested.
892 Added OPAC record syntax. Untested.
894 Added ResourceReport service encoders/decoders. Untested.
896 Fixed bug in z_Unit - wrong tagging on unitSystem.
898 Fixed bug in the DiagRecs decoder.
900 Added options for max PDU size and session timeout to frontend-server.
902 Added documentation of query-language parsers and other supporting utilities.
904 [frontend-server] Added Attribute set to the bend_scanrequest API.
906 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
907 surrogate diagnostics were generated.
909 [retrieval] Allow multiple local values for attribute.
911 [retrieval] Allow multiple attributes per element in .abs files. index type.
913 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
917 Minor changes, mostly specific to Zebra's requirements (retrieval)
921 Repaired bug in frontend server when running multiple listening
922 endpoints in dynamic mode.
924 z_External() now won't break if a known, ASN.1 value comes encapsulated
925 in an octet-string. The value will pass through unmodified in an Odr_oct.
927 Added a bit of code to the demo client to decode & display
928 ASN.1-structured records represented in the octet-aligned branch of
929 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
931 Added z_ext_getentbyref() to the ASN module. Doc updated.
933 * Completed the SCAN definition in the ASN module. This may break SCAN
934 code based on older YAZ-versions at compile-time. The fix is easy -
937 * Added 'displayTerm' and OtherInformation to the TermInfo structure
938 under the SCAN definition. Remember to initialize this, server-people.
940 Comstack should now support the WAIS protocol in TCP/IP mode. Note
941 that this does not extend to ODR and ASN.
943 Comstack allows insertion of established socket (primarily for
944 inetd-operation of servers). Doc updated.
946 Front-end server can now start from the inetd in TCP mode. Doc
953 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
954 the rank and record number.
956 Adjustments to the frontend server.
958 Fixed diagnostic BER dumper. It ignored the file argument.
962 Various changes to retrieval module.
964 Changed the union discriminators of the protocol files from enums to
965 ints paired with #defines.
967 *Changed oident.class to oident.oclass to avoid a reserved word in C++
970 *Changed operator in the RPN structure to 'roperator', again to avoid a
973 Fixed problems in Explain decoders/encoders.
977 Memory bug in log module fixed.
981 Occasional malloc() of 0 bytes fixed in d1_espec.c.
983 Bug in Explain DatabaseInfo module fixed.
985 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
989 The shift to v1.0 signals that we now consider the *core* functionality
990 of YAZ reasonably stable (the core being more or less equivalent to
991 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
992 tested (Explain not at all - though that will happen soonish).
994 Minor changes to code to support Windows port.
996 Various minor changes after we're getting to use GRS-1 & co. more.
998 Added Espec-1 format.
1000 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1001 of the protocol and it cannot be selected when encoding (maps into 'string'
1002 when decoding). Needed to talk to some servers.
1004 Demo client can request simple element set names.
1006 Added Diagnostic Format encoders/decoders.
1008 Added simple Close handling to frontend server (no hooks for resource
1009 reporting yet), and demonstration client.
1011 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1013 --- 1.0b3 1995/08/24
1015 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1016 handled incorrectly when records were requested in the searchResponse. This
1017 will only affect you if you use the frontend-server.
1019 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1020 Test-client will ask for and print GRS1. Ztest will return dummy records
1023 Added Explain encoders/decoders to the service-level API. Untested.
1025 Added Extended Services: Item Order encoders and decoders to the Service-
1026 level API. Untested. We could use a recent copy of the pertinent bits
1027 of the ILL protocol to add those bits.
1029 Added diagnostic format 1 encoders/decoders to the service-level API.
1032 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1033 odr_cons.c, which causes a more correct output.
1035 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1036 was always set to 0 when no records were requested in the searchRequest.
1038 * Added better external-handling. This shouldn't harm old code that
1039 *encodes* externals. It can break code that looks for a
1040 'single-ASN1-type' representation, since those types that are known
1041 are now decoded immediately. Look at the SUTRS sample code in
1042 seshigh.c and client.c. Documentation updated.
1044 Handling of structured records in bend_fetchresponse. Length -1 marks
1045 structured record, type is deduced from format field.
1047 --- 1.0b2 1995/06/27
1048 Fairly quick maintenance release to add SUTRS support.
1050 Fixed handling of SUTRS records in the demonstration client.
1052 * Added format field to the bend_fetchrequest and bend_fetchresponce
1053 structures of the backend API (frontend server). When the record is
1054 returned, the value of the format field is mapped to an OID. The
1055 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1056 of the record. The special value VAL_NONE in the bend_request means
1057 that no specific format was requested by the client. Documentation
1058 updated accordingly. Test server (ztest) will return a fixed dummy
1059 SUTRS record if your client requests SUTRS.
1061 Documentation updated accordingly.
1063 You can now set external libraries and RANLIB support in the top-level
1067 First public release.