1 Possible compatibility problems with earlier versions marked with '*'.
5 Implemented command update0 in YAZ client which is equivalent to
6 update but uses old of Ext Update ASN.1.
8 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
9 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
10 Previously no OID was used for this info.
12 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
13 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
14 returns 'malformed search term' otherwise.
16 SortResponse member resultCount now set to NULL in sort handler of
19 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
22 Add three new utility functions for translating OIDs between various
23 formats -- symbolic name such as "Usmarc", minus-1-terminated int
24 arrays and dotted strings such as "1.2.840.10003.9.5.1":
25 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
26 char *oid_to_dotstring(const int *oid, char *oidbuf);
27 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
29 Reverted modifications for ES Update definition for z_IU0Update
30 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
33 String value attributes for CCL parser.
35 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
36 which their FirstSearch server returns in Init responses, sometimes
37 carrying useful diagnostic information when Init fails. This has the
38 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
39 "z39.50/oclcui.asn", where its definition is somewhat different from
40 what OCLC document on their web-site, as required to interoperate with
43 Support for anonymous authentication in yaz-client. Use the command
46 * Fix the OID of the Index Data-local "admin" Extended Service from
47 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
48 the 1000, which indicates a locally-defined OID, was a mistake.
52 Fix CCL directive @case handling so that it affects string match for
53 both CCL keywords and qualifiers.
55 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
56 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
57 Decoder has been updated with ASN.1 changes as listed in
58 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
59 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
60 z_IUUpdate, remains unchanged.
62 ZOOM_record_get may now return a record in a specific character set.
63 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
64 "from" is the character set of record as returned by target. "to" is
65 the character set to be returned. If omitted, "to" is UTF-8.
67 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
69 New ODR utility, odr_getelement, which returns name of element for
70 which encoding/decoding failed.
72 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
73 in cases where a required element was omitted.
75 Bug fix: some MARC8 sequences were not converted.
77 New ZOOM option "step" which specifies number of records to be
78 retrieved in one chunk. Used in conjunction with "start" and "count".
80 SRW support for yaz-client. Use scheme http: to use it, e.g.
83 yaz-client no longer does (un)intelligent character set conversions
84 by default. Can be enabled with charset and marc_charset commands.
86 xmalloc trace fix for 64-bit systems such as DEC alpha.
88 Solaris 2.6 compile fix.
90 New function, cql_strerror() translates SRW error codes, as returned
91 by cql_transform_error(), into human-readable English strings. Used
92 in yaz-client diagnostics when appropriate.
94 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
95 converts it into a type-1 query which is sent to the server. This
96 makes CQL available for use with all Z-servers, as opposed to the tiny
97 minority that can handle CQL queries themselves.
101 New Debian package layout similar to the Redhat Package layout.
103 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
104 and search result respectively.
108 Redhat package is now several packages: libyaz (runtime libraries),
109 libyaz-devel (development and documentation, and yaz (utility programs).
110 Package spec file by Morten Bøgeskov.
112 New member 'schema' in struct bend_fetch_rr which the name of requested
113 schema (SRW/SRU) for record (or NULL if none was given). The fetch
114 handler MAY set this to reflect the schema of the returned record.
116 New member 'display_term' in struct scan_entry. GFS now sets member entries
117 and allocates scan entries to be filled by user scan handler. In previous
118 version, entries member was allocated by the scan handler. That still works,
119 but the GFS will ignore member display_term - assuming it was NOT set by
120 the handler. The fact that the GFS now allocates the entries both allows
121 for new members and makes a scan handler easier to write.
123 Fix CQL lex buffer overflow.
125 SRW/SRU recordPacking. For SRW default recordPacking is string. For
126 SRU default recordPacking is string.
128 SRU protocol support for frontend server.
130 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
132 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
134 Added scan for the ZOOM shell (zoomsh).
138 * String Identifers for Schemas (Amendment 5).
139 http://lcweb.loc.gov/z3950/agency/amend/am5.html
140 Old definition for schema
141 Odr_oid *schema; /* OPT */
146 Z_InternationalString *uri;
147 #define Z_Schema_oid 1
148 #define Z_Schema_uri 2
151 * resultCount parameter to Sort Response (Amendment 1).
152 http://lcweb.loc.gov/z3950/agency/amend/am1.html
154 Support for SRW 1.0 over HTTP. This is an optional feature and
155 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
158 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
159 on the same port. SRW SearchRetrieveRequests are mapped
160 to bend_init,bend_search,bend_fetch,bend_close.
162 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
164 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
165 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
167 ZOOM connections are SRW based if schem http is used for hostname
168 in connect, e.g. z = ZOOM_connection_new("http://myserver");
169 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
171 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
172 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
173 distance=n, order=true/false, relation=le, prox unit=word. If
174 n is omitted, distance 1 is used.
176 Fixed problem with C compiler include path in wrong order.
178 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
179 on Solaris. Patch from Ko van der Sloot.
181 New MARC decode API. All new functions operate on a yaz_marc_t
182 handle. The most important new functions are: yaz_marc_create,
183 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
184 decode and destroy respectively. Decoder can produce formats
185 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
186 include/yaz/marcdisp.h.
188 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
189 to UTF-8, UCS-32, wchar_t or Latin-1.
191 * Prototypes for yaz_iconv_-functions moved to separate header
192 include/yaz/yaz-iconv.h.
194 Make a few private functions 'static' in unix.c. This prevents
195 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
197 For ZOOM connection, the options targetImplementation{Id,Name,Version}
198 are set when Init Response is received.
200 New function ZOOM_connection_error_x similar to ZOOM_connection_error
201 but returns diagnostic set as well.
203 New function yaz_strerror which is a portable wrapper for
204 strerror/strerror_r/GetLastMessage.
206 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
207 is returned for MARC. If type is "oai", then OAI MARC is returned.
209 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
214 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
216 Fix bad race conditions on SIGTERM and terminate gracefully in
219 Move retrieval (data1) module to Zebra since nobody seems to be
222 Add GRS-1 render for ZOOM using same format as yaz-client.
226 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
228 Fix broken ESpec handling in data1 module.
230 SGML reader parses comments and makes them part of the data1 tree.
232 Added several type casts so that YAZ compiles as C++ code.
234 ZOOM didn't handle PDU encoding failures properly.
236 Added more Bib-1 diagnostics (approved extensions).
238 GNU configure: better check for iconv.
240 More portable use of accept, getpeername. Check for socklen_t. Use
241 int/size_t if socklen_t is not defined.
245 PQF parser rejects bad queries - including those with extra
246 characters in them. PQF parser used to silently ignore that.
247 Cleaner API for PQF added, which allows you to get detailed
248 error information for bad queries (see yaz/pquery.h).
250 Fixed bug in ZOOM_record_get for type "database".
252 Implemented mini iconv library supporting conversions between
253 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
255 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
259 Fixed ZOOM C record cache so that preferredRecordSyntax and
260 elementSetName is used to check for already fetched records.
264 Added three members in bend_initrequest structure to facilitate
265 character set negotiation.
267 Fixed a bug in frontend server that could cause indefinite
268 loops under rare conditions.
270 Revised character set utilities (charneg.h) so that encoding
271 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
273 For PQF, directive @term <type> sets term type for Scan/Search.
274 Here <type> is general, string, numeric, null. The term type
275 is inherited - just like @attr.
277 New call odr_set_charset that sets character set conversion for
278 international-strings on a ODR stream. Prototype is:
279 int odr_set_charset(ODR o, const char *to, const char *from);
280 The InternationalString is still represented as C string in YAZ
281 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
282 won't). On the protocol level, you can use any encoding.
284 Support for UNIX sockets in ZOOM.
286 Solaris recv sometimes returns errno == ENOENT. It is treated as
287 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
289 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
290 both client and server. Code by Morten Bøgeskov.
294 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
295 that they can be used directly from Visual Basic. You must recompile
296 your windows APP if you're using ZOOM.
298 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
299 Commands "lang" and "charset" sets language and character set respectively.
300 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
301 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
303 Attributes from multiple CCL fields may be OR'ed rather than merged
304 using directive "@field or". Fields are still merged by default -
305 equivalent to "@field merge".
307 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
310 Fixed bug in zget for parameter ExtendedServicesResponse.
316 Added PQF feature: '@attr type=value' may be written as '@type=value'.
318 Client displays USR.1:SearchResult-1 (hits per term).
320 Additional Search Info for search in Generic Frontend Server.
322 Fixed CCL parsing of "field=s".
324 WIN32 installer - using the excellent NSIS software from nullsoft.
326 Fixed CCL parsing of "field = - <number>".
328 Added function yaz_marc_decode that decodes MARC for line mode
329 display or XML (similar to that used by JZKit).
331 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
332 Z39.50. But ISO/ILL was, however.
334 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
335 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
337 http://lcweb.loc.gov/z3950/agency/amend/am2.html
338 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
342 New YAZ client features: Command completion and new commands:
343 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
344 Code provided by Jacob Poulsen.
346 New call oid_trav, that visits all registered OIDs via callback.
348 Function ZOOM_record_get now returns const char pointer rather than
349 void pointer. It saves a lot of type casts.
351 For YAZ client, command "auth" now allows you to set authentication
352 in IdPass style. It is enabled when three tokens are given - order
353 is user, group and password.
355 Fix memory leaks in MARC record handling for ZOOM.
357 New option for YAZ client, -k <kilobytes> that sets
358 maximum record size. Similar to -k option for generic frontend
359 server and yaz-ztest.
361 More fixes for scan. Non-zero stepSize handled. OID's fixes.
363 Prefix query parser reports "fail" when bad attribute set is given.
365 Fix in MARC decoder. Proximity logging. Fix for attribute set
366 in scan handler for server. Patches by Shigeru Ishida.
368 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
371 Configure option --with-openssl=<dir> now works when a directory is
372 specified. Patch provided by Morten Bøgeskov.
374 New option for YAZ client, -u <auth>, that sets authentication.
376 ZOOM fix: error information was sometimes "missing", since error
377 was cleared/reset too when it shouldn't.
379 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
383 Scan for ZOOM API. New object ZOOM_scanset. New functions
384 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
385 ZOOM_scanset_destroy.
387 New ZOOM function, ZOOM_connection_last_event, that returns type
388 of last event (such as "receive data", "send data", "apdu received",
391 New ZOOM option, schema, that specifies schema for retrieval.
393 New CCL feature. Qualifiers can be aliases for one or more
394 other qualifiers (if more than one is given, OR is used).
396 ZOOM uses named result sets if target supports it.
398 Two new YAZ client commands: . (dot, which sources a script of YAZ
399 client commands), and ! (to execute shell command.). Implemented
402 Working on Debian packages.
406 YAZ client enables named result sets only if target supports it.
408 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
410 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
411 with key="host" to get same result.
413 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
414 Function Z3950_resultset_record(s) returns references to records
415 "owned" by resultset. To become owner use Z3950_record_clone.
417 Function z_ext_record handles Extended Services. Thanks to
422 CCL Parser fix: ignore token comma when dealing with and-lists.
424 Documentation updates for COMSTACK.
426 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
427 Changed prototype Z3950_records. For some functions, int parameters
428 were changed to size_t.
430 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
433 New MARC decode/display function, marc_display_exl, which properly rejects
434 non-ISO2709 records. YAZ client uses it.
438 Fix bug: local attribute set wasn't set correctly in PQF strings.
442 * Old Z39.50 codecs no longer supported.
444 Added ZOOM C binding. See http://zoom.z3950.org/
446 Renamed states for COMSTACKs to avoid confusion with events.
448 Implemented cs_look and proper cs_rcvconnect.
450 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
452 Configure detects POSIX threads on OpenBSD.
454 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
455 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
457 When error is returned from present handler, non-surrogate diagnostic
458 is returned in present response (and fetch handler is no longer called).
460 * Minor adjustments to pquery parser (PQF). Token characters may be
461 escaped by using backslash (C-style).
463 PQF parser allows string attribute values to be specified. For @attr,
464 non-numeric characters after the equal-sign are treated as strings
465 (e.g. @attr 9=title).
467 CCL trunction character may be defined (@truncation in file)
469 * function zget_ExtendedServicesRequest sets waitAction to
470 waitIfPossible (was wait).
472 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
475 CCL operator names may be set in field definition files (CCL_bibset).
476 See ccl/bib1 for an example.
478 Fixes in ASN.1 compiler for C++ compatibility.
480 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
481 and "op_or" to avoid conflict with C++.
483 Fixed problem with GNU readline detection on Redhat 7.0.
485 Added step-size for Scan backend handler.
487 Fixed bug that made the frontend server crash when no attribute
488 set was specified for scan.
490 Front-end server automatically switches to original working directory
491 when installed as an NT service. Previously -w had to be specified to
494 Added extended attributes for retrieval module (data1), so that data1
495 records carry d1_readXML/SGML attributes. d1_read also supports
496 null-data rules ( <tag/>)
498 On UNIX when POSIX threads are available, a separate library libyazthread
499 is created. Programmers should link with that library and the yaz library
500 when using threads. The reason for the split was that some applications
501 on Linux, such as Apache, doesn't work well when using shared objects that
504 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
505 (or any frontend server) in SSL mode by specifying ssl: followed by
506 address. Only tested on UNIX.
508 Added feature for CCL module. Virtual structure s=al or s=ol generates
509 and-list and or-list respectively instead of phrase search.
513 * Added prefix "yaz_" for the functions log_init.., log_file.. and
514 log_mask_str. This was done to avoid name conflicts with other libraries
515 (such as other PHP extensions).
517 Added raw OID member for preferred record syntax (request_format_raw)
518 and returned record syntax (output_format_raw) for backend fetch method.
520 Config file yaz-config now accepts options so that it returns specific
521 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
523 Shared library support for UNIX using GNU libtool.
525 * Modified backend interface. Request/Response struct's replaced by
526 one read/write C struct. For example bend_fetchrequest and
527 bend_fetchresult have been replaced by single bend_fetch_rr struct.
528 Every handler - even search has to be registered in bend_init
529 handler. This means that the YAZ library no longer refers to
530 external functions and it makes it possible to make the whole
531 thing a single DLL/SO.
533 Added Segment handler for backend server.
535 Added Zmbol/Zebra administrative functions to YAZ client.
537 Threaded frontend server on UNIX (when POSIX Threads are available).
538 Starting the server with option -T enables multi-threading.
542 Added configure option --enable-comp/disable-comp to control use
543 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
544 located in sub directory asn.
546 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
547 in ${exec_prefix}/bin along with the other programs yaz-client and
550 GNU automake used to maintain makefiles.
554 Changed retrieval module so that we can load records with no abstract
555 syntax defined. Tagpaths in these records are fully composed of string
558 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
562 On UNIX, the generated makefile now supports a proper 'make install'.
563 The prefix can be set via GNU configure to set the install location
564 (default is /usr/local).
566 * YAZ programs client and ztest were renamed to yaz-client and
567 yaz-ztest to avoid conflicts when users install YAZ in "standard"
568 locations, such as /usr/bin,/usr/local/bin,etc.
570 * YAZ Header files were moved from include to include/yaz. YAZ Header
571 files are referred to as include <yaz/log.h> rather than <log.h>.
572 The YAZ include path (-I ..) is therefore the same as before. Programmers
573 should update their #include statements or use -Ipath/include/yaz
574 instead. The main motivation for doing this change is that YAZ header files
575 can be installed in "standard" locations /usr/include,/usr/local/include
576 without introducing conflicts, since ALL YAZ header files are stored
577 in subdirectory yaz (under /usr/include for example).
579 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
580 rather than project/workspace files. We switched because project files
581 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
584 Changed name of logging function, logf, to yaz_log, to prevent name
585 clash with some math-log functions. The YAZ header log.h defines logf
586 to yaz_log (#define) so there should be no incompatibilities by this
589 Added bend_start/bend_stop handlers for server. These handler are
590 called on start/stop of server. For windows they are called whenever
591 a service is started/stopped.
593 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
594 a fairly small ASN.1 compiler written in Tcl. The compiler is located
595 in util/yc.tcl. The auto-generated C code structures are, in a few
596 cases, incompatible with the old decoders. There are differences in the
597 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
598 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
599 The preprocessor variable ASN_COMPILED is defined when the compiled
600 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
601 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
602 wish to use the old encoders/decoders you can specify --disable-yc
605 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
606 version so that it supports both new - and old version of DB Update
608 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
609 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
610 change. The name parameter can be set to 0 in which no name is specified
611 for the construction. The macros odr_implicit and odr_explicit sets name
612 parameter to zero for the construction involved. New macros
613 odr_implicit_tag and odr_explicit_tag are similar to the others,
614 except that a name parameter is added. For programmers' that don't use
615 ODR they probably only need to change the call to z_APDU and z_External.
617 Added access control facility by interfacing the TCP wrapper library.
618 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
619 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
620 name of the daemon and enables the access control as specified in
621 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
623 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
624 den Dool <H.M.vdnDool@kub.nl>.
626 Added reference ID parameter to most functions in server API - refer
627 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
629 Changed name of ccl library to libccl.a (was ccl.a).
631 Fixed bug in decoder for Explain (Category TargetInfo).
633 Added support for GNU readline in client. Thanks to Jacob Poulsen
634 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
636 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
637 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
638 IMPLEMENTATION! This change was made to the development version before
639 the ZIG decided to retract the amendment. If any users MUST be
640 compatible with the original Update definition, PLEASE CONTACT US, and
641 we will include a separate definition corresponding to the old Update
642 ES. Note that because of the change to the ASN.1 of the
643 TaskPackageRecordStructure we cannot define a single structure that
644 will support both versions.
646 * Added const modifier to buffer parameter for some ODR/BER encoding
647 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
648 completeWAIS, odr_dumpBER.
650 Fixed bug in client.c which caused a crash when a scanResponse didn't
651 contain positionOfTerm.
653 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
654 * will cause an error in a client if a non-YAZ target sends both a
655 * list of Scan entries and non-surrogate diagnostics.
657 Retrieval module enhancements. Tag sets may be typed in the reference
658 to it. From the .abs-file the "tagset" directive takes a third optional
659 integer type for the tag set referenced. From a .tag-file the "include"
660 directive takes a third optional type as well. The old "type" directive
661 in the tag set itself is still recognized but acts as the default type
664 Backend interface change. Individual Scan terms returned from bend_scan
665 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
666 in include/backend.h.
668 Retrieval module enhancements. Multiple tag sets and attribute sets may
669 be specified in abstract syntax specs. Revised the error/warning for
670 logging messages reported by the retrieval module when reading the
673 Object Identifier system (oid_..) changed. The API is backwards
674 compatible but the oid-routines now allocates new OID's when needed.
675 Raw OID's may be specified in oid_getvalbyname.
677 YAZ now uses GNU configure to generate Makefile(s).
679 * Minor changes in some of the member names of DeleteResultSetRequest and
680 DeleteResultSetResponse. See include/proto.h.
682 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
683 and added member 'languages' in TargetInfo (which was missing).
685 Changed the way attribute sets are handled in the retrieval
686 module. These are now cached, just like the abstract syntaxes
689 Changed YAZ so that it links with compiled ASN.1.
691 Added Explain-schema definitions and mapping routines. The following
692 Explain categories have been implemented: AttributeDetails,
693 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
695 Fixed minor bug in Windows version of Server Library.
697 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
699 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
701 Added EXTERNAL: UNIverse Resource Report (non-standard).
703 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
704 ENUMERATED and SET OF.
706 * Added 'const' to some of the char pointer arguments for the
707 functions, data1_read_node, data1_getelementbytagname,
708 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
711 Fixed bug in data1_insert_taggeddata - the last_child member of
712 parent wasn't initialised.
714 * Changed data1_read_record and data1_read_node so that the supplied
715 "SGML"-buffer is read-only. In particular the resulting data1 - tree
716 doesn't refer to any parts of the "SGML"-buffer.
718 Fixed bug in server library (Windows version of statserv_remove).
720 * Changed code so that it compiles as C++. The type definition
721 of Odr_fun which is a member of Odr_arm was changed. The result is,
722 that an explicit typecast is needed for the fun pointer when
723 using Odr_arm - as in:
724 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
726 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
728 Implemented the new structured date and time definition as approved
729 by the ZIG. Added schemaId element to the specificTag in Espec-1
730 (also approved at the last ZIG). Thanks to RVDM.
732 Added some Object identifiers (RVDM).
734 Changed the Update Extended Service (RVDM).
736 Added command "refid" to client which specifies referenceId for
737 the following requests.
739 Implemented extended service handling for server. See ztest.c
740 for an example as well as backend.h. New handlers are registerd
743 * Changed interface for sort in server.
745 Added new members to statserv_options_block. It allows a server
746 to read options from another source than just the command line. Thanks
747 to Charles Woodfield.
749 * Changed definition of Z_Triple in file prt-grs.h - member boolean
750 renamed to zboolean. Some C++ compilers complained about the name.
752 Minor changes to gils.abs. Added index 's' (sort) on title
753 and date/time-last-modified.
757 Fixed bug in server library regarding inetd mode (-i). This bug
758 was introduced by release 1.4.
762 Added sort facility in client and backend server interface.
764 Fixed problem with dependencies in Makefile(s).
766 Fixed bugs for encoders/decoders of extended services and
769 Implemented sub-tree feature for schemas. Sub-trees are
770 referenced in *.abs-files. See explain.abs for an example
771 of the use of this feature.
773 Modified bib1.att; local attributes for ANY didn't include
774 ANY itself (only affects use of the retrieval module).
776 Fixed bug in plain SGML reader in function data1_read_node:
777 tags with prefix "var" was incorrectly interpreted as variants.
779 Added feature "sub-schemas" to enable references to - and definitions
780 of - group of elements.
782 * Removed member parent from type data1_element (in data1.h).
784 Implemented function odr_nullval() that returns the value of
787 * Removed member num_children from data1_node (in data1.h).
789 Made NT service interface part of the server library. The
790 function statserv_main uses the NT service when required and
791 calls the statserv_start / statserv_close routines.
793 Routine zget_SearchRequest and zget_PresentRequest fills
794 resultSetName/Id member with "default" instead of "Default".
796 Fixed memory leak in server. Request queue member wasn't freed.
798 Fixed nmem_exit so that memory is freed.
802 Revised the CCL parser utility to be thread safe.
804 Added function, oid_ent_to_oid, to replace the function
805 oid_getoidbyent, which is not thread safe.
807 * Added nmem_init and nmem_exit to initialize and release
808 NMEM resources. Function nmem_init should be called once in the
809 initial thread before NMEM/ODR is used. statserv.c and client.c
810 have been changed accordingly. The change was necessary to make
811 NMEM thread safe. The NMEM memory pool is shared amongst threads
812 in a process. Unix-based applications will still work fine without
815 Added NT Services interface for the the Z39.50 (statserv) Server.
816 Refer to the ztest.c source on the usage.
818 Windows 95/NT port using MSVC5.0. Project files are included in the
821 * Defined new 'global' handle for the retrieval (data1) system. The
822 new handled, data1_handle, describes the state of the data1 system.
823 This handle is passed as first argument to virtually all
824 data1 related routines. The functions data1_create and data1_destroy
825 creates and destroys a data1 handle respectively.
827 Added ODR encode stream member to all backend request structures
828 init, search, scan etc. This stream should be used to allocate all
829 memory used for the response when thread safe operation is needed.
831 Changed the comstack utility, cs_addstr, to be thread safe. The
832 returned hostname string returned by the function is now part the
835 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
836 function. The cs_straddr takes a COMSTACK handle as argument, so this
837 function must be used after cs_create and before bind/connect.
838 This function is thread safe.
840 Moved test server to 'ztest' directory - generic server code still
841 in 'server' directory.
843 Made prefix query (pquery.c) utility thread safe.
845 Added new function modifier YAZ_EXPORT to 'export' public DLL
846 functions when using windows (see include/yconfig.h).
848 Added definitions to the OID database (util/oid.c) (RVDM).
850 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
852 Added call to ccl_rpn_delete in client program.
854 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
855 release of RPN structure.
857 Added support for C++, headers uses extern "C" for public definitions.
858 With input from RVDM.
860 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
861 Thanks to Ronald van der Meer (RVDM).
863 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
865 Added support for private extensions to the OID database
866 (oid_setprivateoids()). Thanks to RVDM.
868 Added optional, physical ANY (key replication)
870 Fixed null-reference problem in GRS-1 output filter.
872 Proximity operator added to Prefix Query Format (PQF).
874 In test client command "base" accepts multiple databases.
876 Fixed bug in cs_close stack that caused trouble with WINSOCK.
880 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
882 Smallish bug-fixes in the new encoders/decoders (explain).
884 Bug fixed in DeleteRequest.
886 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
888 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
890 Added SOIF syntax (using private OID for now) to retrieval module and client.
892 Added Update extended service.
894 Added SearchResult-1 additional info structure.
896 Added optional CCL (ISO8777) interpreter as separate module. Available
899 --- 1.2 1996/6/10 (1st anniversary release)
901 Added Summary record syntax. Lightly tested.
903 Added OPAC record syntax. Untested.
905 Added ResourceReport service encoders/decoders. Untested.
907 Fixed bug in z_Unit - wrong tagging on unitSystem.
909 Fixed bug in the DiagRecs decoder.
911 Added options for max PDU size and session timeout to frontend-server.
913 Added documentation of query-language parsers and other supporting utilities.
915 [frontend-server] Added Attribute set to the bend_scanrequest API.
917 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
918 surrogate diagnostics were generated.
920 [retrieval] Allow multiple local values for attribute.
922 [retrieval] Allow multiple attributes per element in .abs files. index type.
924 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
928 Minor changes, mostly specific to Zebra's requirements (retrieval)
932 Repaired bug in frontend server when running multiple listening
933 endpoints in dynamic mode.
935 z_External() now won't break if a known, ASN.1 value comes encapsulated
936 in an octet-string. The value will pass through unmodified in an Odr_oct.
938 Added a bit of code to the demo client to decode & display
939 ASN.1-structured records represented in the octet-aligned branch of
940 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
942 Added z_ext_getentbyref() to the ASN module. Doc updated.
944 * Completed the SCAN definition in the ASN module. This may break SCAN
945 code based on older YAZ-versions at compile-time. The fix is easy -
948 * Added 'displayTerm' and OtherInformation to the TermInfo structure
949 under the SCAN definition. Remember to initialize this, server-people.
951 Comstack should now support the WAIS protocol in TCP/IP mode. Note
952 that this does not extend to ODR and ASN.
954 Comstack allows insertion of established socket (primarily for
955 inetd-operation of servers). Doc updated.
957 Front-end server can now start from the inetd in TCP mode. Doc
964 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
965 the rank and record number.
967 Adjustments to the frontend server.
969 Fixed diagnostic BER dumper. It ignored the file argument.
973 Various changes to retrieval module.
975 Changed the union discriminators of the protocol files from enums to
976 ints paired with #defines.
978 *Changed oident.class to oident.oclass to avoid a reserved word in C++
981 *Changed operator in the RPN structure to 'roperator', again to avoid a
984 Fixed problems in Explain decoders/encoders.
988 Memory bug in log module fixed.
992 Occasional malloc() of 0 bytes fixed in d1_espec.c.
994 Bug in Explain DatabaseInfo module fixed.
996 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1000 The shift to v1.0 signals that we now consider the *core* functionality
1001 of YAZ reasonably stable (the core being more or less equivalent to
1002 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1003 tested (Explain not at all - though that will happen soonish).
1005 Minor changes to code to support Windows port.
1007 Various minor changes after we're getting to use GRS-1 & co. more.
1009 Added Espec-1 format.
1011 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1012 of the protocol and it cannot be selected when encoding (maps into 'string'
1013 when decoding). Needed to talk to some servers.
1015 Demo client can request simple element set names.
1017 Added Diagnostic Format encoders/decoders.
1019 Added simple Close handling to frontend server (no hooks for resource
1020 reporting yet), and demonstration client.
1022 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1024 --- 1.0b3 1995/08/24
1026 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1027 handled incorrectly when records were requested in the searchResponse. This
1028 will only affect you if you use the frontend-server.
1030 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1031 Test-client will ask for and print GRS1. Ztest will return dummy records
1034 Added Explain encoders/decoders to the service-level API. Untested.
1036 Added Extended Services: Item Order encoders and decoders to the Service-
1037 level API. Untested. We could use a recent copy of the pertinent bits
1038 of the ILL protocol to add those bits.
1040 Added diagnostic format 1 encoders/decoders to the service-level API.
1043 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1044 odr_cons.c, which causes a more correct output.
1046 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1047 was always set to 0 when no records were requested in the searchRequest.
1049 * Added better external-handling. This shouldn't harm old code that
1050 *encodes* externals. It can break code that looks for a
1051 'single-ASN1-type' representation, since those types that are known
1052 are now decoded immediately. Look at the SUTRS sample code in
1053 seshigh.c and client.c. Documentation updated.
1055 Handling of structured records in bend_fetchresponse. Length -1 marks
1056 structured record, type is deduced from format field.
1058 --- 1.0b2 1995/06/27
1059 Fairly quick maintenance release to add SUTRS support.
1061 Fixed handling of SUTRS records in the demonstration client.
1063 * Added format field to the bend_fetchrequest and bend_fetchresponce
1064 structures of the backend API (frontend server). When the record is
1065 returned, the value of the format field is mapped to an OID. The
1066 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1067 of the record. The special value VAL_NONE in the bend_request means
1068 that no specific format was requested by the client. Documentation
1069 updated accordingly. Test server (ztest) will return a fixed dummy
1070 SUTRS record if your client requests SUTRS.
1072 Documentation updated accordingly.
1074 You can now set external libraries and RANLIB support in the top-level
1078 First public release.