1 Possible compatibility problems with earlier versions marked with '*'.
3 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
4 and search result respectively.
8 Redhat package is now several packages: libyaz (runtime libraries),
9 libyaz-devel (development and documentation, and yaz (utility programs).
10 Package spec file by Morten Bøgeskov.
12 New member 'schema' in struct bend_fetch_rr which the name of requested
13 schema (SRW/SRU) for record (or NULL if none was given). The fetch
14 handler MAY set this to reflect the schema of the returned record.
16 New member 'display_term' in struct scan_entry. GFS now sets member entries
17 and allocates scan entries to be filled by user scan handler. In previous
18 version, entries member was allocated by the scan handler. That still works,
19 but the GFS will ignore member display_term - assuming it was NOT set by
20 the handler. The fact that the GFS now allocates the entries both allows
21 for new members and makes a scan handler easier to write.
23 Fix CQL lex buffer overflow.
25 SRW/SRU recordPacking. For SRW default recordPacking is string. For
26 SRU default recordPacking is string.
28 SRU protocol support for frontend server.
30 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
32 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
34 Added scan for the ZOOM shell (zoomsh).
38 * String Identifers for Schemas (Amendment 5).
39 http://lcweb.loc.gov/z3950/agency/amend/am5.html
40 Old definition for schema
41 Odr_oid *schema; /* OPT */
46 Z_InternationalString *uri;
47 #define Z_Schema_oid 1
48 #define Z_Schema_uri 2
51 * resultCount parameter to Sort Response (Amendment 1).
52 http://lcweb.loc.gov/z3950/agency/amend/am1.html
54 Support for SRW 1.0 over HTTP. This is an optional feature and
55 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
58 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
59 on the same port. SRW SearchRetrieveRequests are mapped
60 to bend_init,bend_search,bend_fetch,bend_close.
62 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
64 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
65 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
67 ZOOM connections are SRW based if schem http is used for hostname
68 in connect, e.g. z = ZOOM_connection_new("http://myserver");
69 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
71 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
72 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
73 distance=n, order=true/false, relation=le, prox unit=word. If
74 n is omitted, distance 1 is used.
76 Fixed problem with C compiler include path in wrong order.
78 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
79 on Solaris. Patch from Ko van der Sloot.
81 New MARC decode API. All new functions operate on a yaz_marc_t
82 handle. The most important new functions are: yaz_marc_create,
83 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
84 decode and destroy respectively. Decoder can produce formats
85 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
86 include/yaz/marcdisp.h.
88 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
89 to UTF-8, UCS-32, wchar_t or Latin-1.
91 * Prototypes for yaz_iconv_-functions moved to separate header
92 include/yaz/yaz-iconv.h.
94 Make a few private functions 'static' in unix.c. This prevents
95 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
97 For ZOOM connection, the options targetImplementation{Id,Name,Version}
98 are set when Init Response is received.
100 New function ZOOM_connection_error_x similar to ZOOM_connection_error
101 but returns diagnostic set as well.
103 New function yaz_strerror which is a portable wrapper for
104 strerror/strerror_r/GetLastMessage.
106 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
107 is returned for MARC. If type is "oai", then OAI MARC is returned.
109 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
114 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
116 Fix bad race conditions on SIGTERM and terminate gracefully in
119 Move retrieval (data1) module to Zebra since nobody seems to be
122 Add GRS-1 render for ZOOM using same format as yaz-client.
126 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
128 Fix broken ESpec handling in data1 module.
130 SGML reader parses comments and makes them part of the data1 tree.
132 Added several type casts so that YAZ compiles as C++ code.
134 ZOOM didn't handle PDU encoding failures properly.
136 Added more Bib-1 diagnostics (approved extensions).
138 GNU configure: better check for iconv.
140 More portable use of accept, getpeername. Check for socklen_t. Use
141 int/size_t if socklen_t is not defined.
145 PQF parser rejects bad queries - including those with extra
146 characters in them. PQF parser used to silently ignore that.
147 Cleaner API for PQF added, which allows you to get detailed
148 error information for bad queries (see yaz/pquery.h).
150 Fixed bug in ZOOM_record_get for type "database".
152 Implemented mini iconv library supporting conversions between
153 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
155 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
159 Fixed ZOOM C record cache so that preferredRecordSyntax and
160 elementSetName is used to check for already fetched records.
164 Added three members in bend_initrequest structure to facilitate
165 character set negotiation.
167 Fixed a bug in frontend server that could cause indefinite
168 loops under rare conditions.
170 Revised character set utilities (charneg.h) so that encoding
171 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
173 For PQF, directive @term <type> sets term type for Scan/Search.
174 Here <type> is general, string, numeric, null. The term type
175 is inherited - just like @attr.
177 New call odr_set_charset that sets character set conversion for
178 international-strings on a ODR stream. Prototype is:
179 int odr_set_charset(ODR o, const char *to, const char *from);
180 The InternationalString is still represented as C string in YAZ
181 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
182 won't). On the protocol level, you can use any encoding.
184 Support for UNIX sockets in ZOOM.
186 Solaris recv sometimes returns errno == ENOENT. It is treated as
187 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
189 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
190 both client and server. Code by Morten Bøgeskov.
194 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
195 that they can be used directly from Visual Basic. You must recompile
196 your windows APP if you're using ZOOM.
198 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
199 Commands "lang" and "charset" sets language and character set respectively.
200 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
201 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
203 Attributes from multiple CCL fields may be OR'ed rather than merged
204 using directive "@field or". Fields are still merged by default -
205 equivalent to "@field merge".
207 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
210 Fixed bug in zget for parameter ExtendedServicesResponse.
216 Added PQF feature: '@attr type=value' may be written as '@type=value'.
218 Client displays USR.1:SearchResult-1 (hits per term).
220 Additional Search Info for search in Generic Frontend Server.
222 Fixed CCL parsing of "field=s".
224 WIN32 installer - using the excellent NSIS software from nullsoft.
226 Fixed CCL parsing of "field = - <number>".
228 Added function yaz_marc_decode that decodes MARC for line mode
229 display or XML (similar to that used by JZKit).
231 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
232 Z39.50. But ISO/ILL was, however.
234 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
235 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
237 http://lcweb.loc.gov/z3950/agency/amend/am2.html
238 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
242 New YAZ client features: Command completion and new commands:
243 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
244 Code provided by Jacob Poulsen.
246 New call oid_trav, that visits all registered OIDs via callback.
248 Function ZOOM_record_get now returns const char pointer rather than
249 void pointer. It saves a lot of type casts.
251 For YAZ client, command "auth" now allows you to set authentication
252 in IdPass style. It is enabled when three tokens are given - order
253 is user, group and password.
255 Fix memory leaks in MARC record handling for ZOOM.
257 New option for YAZ client, -k <kilobytes> that sets
258 maximum record size. Similar to -k option for generic frontend
259 server and yaz-ztest.
261 More fixes for scan. Non-zero stepSize handled. OID's fixes.
263 Prefix query parser reports "fail" when bad attribute set is given.
265 Fix in MARC decoder. Proximity logging. Fix for attribute set
266 in scan handler for server. Patches by Shigeru Ishida.
268 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
271 Configure option --with-openssl=<dir> now works when a directory is
272 specified. Patch provided by Morten Bøgeskov.
274 New option for YAZ client, -u <auth>, that sets authentication.
276 ZOOM fix: error information was sometimes "missing", since error
277 was cleared/reset too when it shouldn't.
279 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
283 Scan for ZOOM API. New object ZOOM_scanset. New functions
284 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
285 ZOOM_scanset_destroy.
287 New ZOOM function, ZOOM_connection_last_event, that returns type
288 of last event (such as "receive data", "send data", "apdu received",
291 New ZOOM option, schema, that specifies schema for retrieval.
293 New CCL feature. Qualifiers can be aliases for one or more
294 other qualifiers (if more than one is given, OR is used).
296 ZOOM uses named result sets if target supports it.
298 Two new YAZ client commands: . (dot, which sources a script of YAZ
299 client commands), and ! (to execute shell command.). Implemented
302 Working on Debian packages.
306 YAZ client enables named result sets only if target supports it.
308 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
310 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
311 with key="host" to get same result.
313 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
314 Function Z3950_resultset_record(s) returns references to records
315 "owned" by resultset. To become owner use Z3950_record_clone.
317 Function z_ext_record handles Extended Services. Thanks to
322 CCL Parser fix: ignore token comma when dealing with and-lists.
324 Documentation updates for COMSTACK.
326 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
327 Changed prototype Z3950_records. For some functions, int parameters
328 were changed to size_t.
330 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
333 New MARC decode/display function, marc_display_exl, which properly rejects
334 non-ISO2709 records. YAZ client uses it.
338 Fix bug: local attribute set wasn't set correctly in PQF strings.
342 * Old Z39.50 codecs no longer supported.
344 Added ZOOM C binding. See http://zoom.z3950.org/
346 Renamed states for COMSTACKs to avoid confusion with events.
348 Implemented cs_look and proper cs_rcvconnect.
350 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
352 Configure detects POSIX threads on OpenBSD.
354 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
355 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
357 When error is returned from present handler, non-surrogate diagnostic
358 is returned in present response (and fetch handler is no longer called).
360 * Minor adjustments to pquery parser (PQF). Token characters may be
361 escaped by using backslash (C-style).
363 PQF parser allows string attribute values to be specified. For @attr,
364 non-numeric characters after the equal-sign are treated as strings
365 (e.g. @attr 9=title).
367 CCL trunction character may be defined (@truncation in file)
369 * function zget_ExtendedServicesRequest sets waitAction to
370 waitIfPossible (was wait).
372 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
375 CCL operator names may be set in field definition files (CCL_bibset).
376 See ccl/bib1 for an example.
378 Fixes in ASN.1 compiler for C++ compatibility.
380 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
381 and "op_or" to avoid conflict with C++.
383 Fixed problem with GNU readline detection on Redhat 7.0.
385 Added step-size for Scan backend handler.
387 Fixed bug that made the frontend server crash when no attribute
388 set was specified for scan.
390 Front-end server automatically switches to original working directory
391 when installed as an NT service. Previously -w had to be specified to
394 Added extended attributes for retrieval module (data1), so that data1
395 records carry d1_readXML/SGML attributes. d1_read also supports
396 null-data rules ( <tag/>)
398 On UNIX when POSIX threads are available, a separate library libyazthread
399 is created. Programmers should link with that library and the yaz library
400 when using threads. The reason for the split was that some applications
401 on Linux, such as Apache, doesn't work well when using shared objects that
404 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
405 (or any frontend server) in SSL mode by specifying ssl: followed by
406 address. Only tested on UNIX.
408 Added feature for CCL module. Virtual structure s=al or s=ol generates
409 and-list and or-list respectively instead of phrase search.
413 * Added prefix "yaz_" for the functions log_init.., log_file.. and
414 log_mask_str. This was done to avoid name conflicts with other libraries
415 (such as other PHP extensions).
417 Added raw OID member for preferred record syntax (request_format_raw)
418 and returned record syntax (output_format_raw) for backend fetch method.
420 Config file yaz-config now accepts options so that it returns specific
421 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
423 Shared library support for UNIX using GNU libtool.
425 * Modified backend interface. Request/Response struct's replaced by
426 one read/write C struct. For example bend_fetchrequest and
427 bend_fetchresult have been replaced by single bend_fetch_rr struct.
428 Every handler - even search has to be registered in bend_init
429 handler. This means that the YAZ library no longer refers to
430 external functions and it makes it possible to make the whole
431 thing a single DLL/SO.
433 Added Segment handler for backend server.
435 Added Zmbol/Zebra administrative functions to YAZ client.
437 Threaded frontend server on UNIX (when POSIX Threads are available).
438 Starting the server with option -T enables multi-threading.
442 Added configure option --enable-comp/disable-comp to control use
443 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
444 located in sub directory asn.
446 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
447 in ${exec_prefix}/bin along with the other programs yaz-client and
450 GNU automake used to maintain makefiles.
454 Changed retrieval module so that we can load records with no abstract
455 syntax defined. Tagpaths in these records are fully composed of string
458 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
462 On UNIX, the generated makefile now supports a proper 'make install'.
463 The prefix can be set via GNU configure to set the install location
464 (default is /usr/local).
466 * YAZ programs client and ztest were renamed to yaz-client and
467 yaz-ztest to avoid conflicts when users install YAZ in "standard"
468 locations, such as /usr/bin,/usr/local/bin,etc.
470 * YAZ Header files were moved from include to include/yaz. YAZ Header
471 files are referred to as include <yaz/log.h> rather than <log.h>.
472 The YAZ include path (-I ..) is therefore the same as before. Programmers
473 should update their #include statements or use -Ipath/include/yaz
474 instead. The main motivation for doing this change is that YAZ header files
475 can be installed in "standard" locations /usr/include,/usr/local/include
476 without introducing conflicts, since ALL YAZ header files are stored
477 in subdirectory yaz (under /usr/include for example).
479 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
480 rather than project/workspace files. We switched because project files
481 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
484 Changed name of logging function, logf, to yaz_log, to prevent name
485 clash with some math-log functions. The YAZ header log.h defines logf
486 to yaz_log (#define) so there should be no incompatibilities by this
489 Added bend_start/bend_stop handlers for server. These handler are
490 called on start/stop of server. For windows they are called whenever
491 a service is started/stopped.
493 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
494 a fairly small ASN.1 compiler written in Tcl. The compiler is located
495 in util/yc.tcl. The auto-generated C code structures are, in a few
496 cases, incompatible with the old decoders. There are differences in the
497 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
498 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
499 The preprocessor variable ASN_COMPILED is defined when the compiled
500 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
501 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
502 wish to use the old encoders/decoders you can specify --disable-yc
505 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
506 version so that it supports both new - and old version of DB Update
508 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
509 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
510 change. The name parameter can be set to 0 in which no name is specified
511 for the construction. The macros odr_implicit and odr_explicit sets name
512 parameter to zero for the construction involved. New macros
513 odr_implicit_tag and odr_explicit_tag are similar to the others,
514 except that a name parameter is added. For programmers' that don't use
515 ODR they probably only need to change the call to z_APDU and z_External.
517 Added access control facility by interfacing the TCP wrapper library.
518 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
519 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
520 name of the daemon and enables the access control as specified in
521 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
523 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
524 den Dool <H.M.vdnDool@kub.nl>.
526 Added reference ID parameter to most functions in server API - refer
527 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
529 Changed name of ccl library to libccl.a (was ccl.a).
531 Fixed bug in decoder for Explain (Category TargetInfo).
533 Added support for GNU readline in client. Thanks to Jacob Poulsen
534 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
536 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
537 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
538 IMPLEMENTATION! This change was made to the development version before
539 the ZIG decided to retract the amendment. If any users MUST be
540 compatible with the original Update definition, PLEASE CONTACT US, and
541 we will include a separate definition corresponding to the old Update
542 ES. Note that because of the change to the ASN.1 of the
543 TaskPackageRecordStructure we cannot define a single structure that
544 will support both versions.
546 * Added const modifier to buffer parameter for some ODR/BER encoding
547 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
548 completeWAIS, odr_dumpBER.
550 Fixed bug in client.c which caused a crash when a scanResponse didn't
551 contain positionOfTerm.
553 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
554 * will cause an error in a client if a non-YAZ target sends both a
555 * list of Scan entries and non-surrogate diagnostics.
557 Retrieval module enhancements. Tag sets may be typed in the reference
558 to it. From the .abs-file the "tagset" directive takes a third optional
559 integer type for the tag set referenced. From a .tag-file the "include"
560 directive takes a third optional type as well. The old "type" directive
561 in the tag set itself is still recognized but acts as the default type
564 Backend interface change. Individual Scan terms returned from bend_scan
565 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
566 in include/backend.h.
568 Retrieval module enhancements. Multiple tag sets and attribute sets may
569 be specified in abstract syntax specs. Revised the error/warning for
570 logging messages reported by the retrieval module when reading the
573 Object Identifier system (oid_..) changed. The API is backwards
574 compatible but the oid-routines now allocates new OID's when needed.
575 Raw OID's may be specified in oid_getvalbyname.
577 YAZ now uses GNU configure to generate Makefile(s).
579 * Minor changes in some of the member names of DeleteResultSetRequest and
580 DeleteResultSetResponse. See include/proto.h.
582 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
583 and added member 'languages' in TargetInfo (which was missing).
585 Changed the way attribute sets are handled in the retrieval
586 module. These are now cached, just like the abstract syntaxes
589 Changed YAZ so that it links with compiled ASN.1.
591 Added Explain-schema definitions and mapping routines. The following
592 Explain categories have been implemented: AttributeDetails,
593 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
595 Fixed minor bug in Windows version of Server Library.
597 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
599 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
601 Added EXTERNAL: UNIverse Resource Report (non-standard).
603 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
604 ENUMERATED and SET OF.
606 * Added 'const' to some of the char pointer arguments for the
607 functions, data1_read_node, data1_getelementbytagname,
608 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
611 Fixed bug in data1_insert_taggeddata - the last_child member of
612 parent wasn't initialised.
614 * Changed data1_read_record and data1_read_node so that the supplied
615 "SGML"-buffer is read-only. In particular the resulting data1 - tree
616 doesn't refer to any parts of the "SGML"-buffer.
618 Fixed bug in server library (Windows version of statserv_remove).
620 * Changed code so that it compiles as C++. The type definition
621 of Odr_fun which is a member of Odr_arm was changed. The result is,
622 that an explicit typecast is needed for the fun pointer when
623 using Odr_arm - as in:
624 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
626 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
628 Implemented the new structured date and time definition as approved
629 by the ZIG. Added schemaId element to the specificTag in Espec-1
630 (also approved at the last ZIG). Thanks to RVDM.
632 Added some Object identifiers (RVDM).
634 Changed the Update Extended Service (RVDM).
636 Added command "refid" to client which specifies referenceId for
637 the following requests.
639 Implemented extended service handling for server. See ztest.c
640 for an example as well as backend.h. New handlers are registerd
643 * Changed interface for sort in server.
645 Added new members to statserv_options_block. It allows a server
646 to read options from another source than just the command line. Thanks
647 to Charles Woodfield.
649 * Changed definition of Z_Triple in file prt-grs.h - member boolean
650 renamed to zboolean. Some C++ compilers complained about the name.
652 Minor changes to gils.abs. Added index 's' (sort) on title
653 and date/time-last-modified.
657 Fixed bug in server library regarding inetd mode (-i). This bug
658 was introduced by release 1.4.
662 Added sort facility in client and backend server interface.
664 Fixed problem with dependencies in Makefile(s).
666 Fixed bugs for encoders/decoders of extended services and
669 Implemented sub-tree feature for schemas. Sub-trees are
670 referenced in *.abs-files. See explain.abs for an example
671 of the use of this feature.
673 Modified bib1.att; local attributes for ANY didn't include
674 ANY itself (only affects use of the retrieval module).
676 Fixed bug in plain SGML reader in function data1_read_node:
677 tags with prefix "var" was incorrectly interpreted as variants.
679 Added feature "sub-schemas" to enable references to - and definitions
680 of - group of elements.
682 * Removed member parent from type data1_element (in data1.h).
684 Implemented function odr_nullval() that returns the value of
687 * Removed member num_children from data1_node (in data1.h).
689 Made NT service interface part of the server library. The
690 function statserv_main uses the NT service when required and
691 calls the statserv_start / statserv_close routines.
693 Routine zget_SearchRequest and zget_PresentRequest fills
694 resultSetName/Id member with "default" instead of "Default".
696 Fixed memory leak in server. Request queue member wasn't freed.
698 Fixed nmem_exit so that memory is freed.
702 Revised the CCL parser utility to be thread safe.
704 Added function, oid_ent_to_oid, to replace the function
705 oid_getoidbyent, which is not thread safe.
707 * Added nmem_init and nmem_exit to initialize and release
708 NMEM resources. Function nmem_init should be called once in the
709 initial thread before NMEM/ODR is used. statserv.c and client.c
710 have been changed accordingly. The change was necessary to make
711 NMEM thread safe. The NMEM memory pool is shared amongst threads
712 in a process. Unix-based applications will still work fine without
715 Added NT Services interface for the the Z39.50 (statserv) Server.
716 Refer to the ztest.c source on the usage.
718 Windows 95/NT port using MSVC5.0. Project files are included in the
721 * Defined new 'global' handle for the retrieval (data1) system. The
722 new handled, data1_handle, describes the state of the data1 system.
723 This handle is passed as first argument to virtually all
724 data1 related routines. The functions data1_create and data1_destroy
725 creates and destroys a data1 handle respectively.
727 Added ODR encode stream member to all backend request structures
728 init, search, scan etc. This stream should be used to allocate all
729 memory used for the response when thread safe operation is needed.
731 Changed the comstack utility, cs_addstr, to be thread safe. The
732 returned hostname string returned by the function is now part the
735 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
736 function. The cs_straddr takes a COMSTACK handle as argument, so this
737 function must be used after cs_create and before bind/connect.
738 This function is thread safe.
740 Moved test server to 'ztest' directory - generic server code still
741 in 'server' directory.
743 Made prefix query (pquery.c) utility thread safe.
745 Added new function modifier YAZ_EXPORT to 'export' public DLL
746 functions when using windows (see include/yconfig.h).
748 Added definitions to the OID database (util/oid.c) (RVDM).
750 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
752 Added call to ccl_rpn_delete in client program.
754 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
755 release of RPN structure.
757 Added support for C++, headers uses extern "C" for public definitions.
758 With input from RVDM.
760 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
761 Thanks to Ronald van der Meer (RVDM).
763 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
765 Added support for private extensions to the OID database
766 (oid_setprivateoids()). Thanks to RVDM.
768 Added optional, physical ANY (key replication)
770 Fixed null-reference problem in GRS-1 output filter.
772 Proximity operator added to Prefix Query Format (PQF).
774 In test client command "base" accepts multiple databases.
776 Fixed bug in cs_close stack that caused trouble with WINSOCK.
780 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
782 Smallish bug-fixes in the new encoders/decoders (explain).
784 Bug fixed in DeleteRequest.
786 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
788 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
790 Added SOIF syntax (using private OID for now) to retrieval module and client.
792 Added Update extended service.
794 Added SearchResult-1 additional info structure.
796 Added optional CCL (ISO8777) interpreter as separate module. Available
799 --- 1.2 1996/6/10 (1st anniversary release)
801 Added Summary record syntax. Lightly tested.
803 Added OPAC record syntax. Untested.
805 Added ResourceReport service encoders/decoders. Untested.
807 Fixed bug in z_Unit - wrong tagging on unitSystem.
809 Fixed bug in the DiagRecs decoder.
811 Added options for max PDU size and session timeout to frontend-server.
813 Added documentation of query-language parsers and other supporting utilities.
815 [frontend-server] Added Attribute set to the bend_scanrequest API.
817 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
818 surrogate diagnostics were generated.
820 [retrieval] Allow multiple local values for attribute.
822 [retrieval] Allow multiple attributes per element in .abs files. index type.
824 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
828 Minor changes, mostly specific to Zebra's requirements (retrieval)
832 Repaired bug in frontend server when running multiple listening
833 endpoints in dynamic mode.
835 z_External() now won't break if a known, ASN.1 value comes encapsulated
836 in an octet-string. The value will pass through unmodified in an Odr_oct.
838 Added a bit of code to the demo client to decode & display
839 ASN.1-structured records represented in the octet-aligned branch of
840 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
842 Added z_ext_getentbyref() to the ASN module. Doc updated.
844 * Completed the SCAN definition in the ASN module. This may break SCAN
845 code based on older YAZ-versions at compile-time. The fix is easy -
848 * Added 'displayTerm' and OtherInformation to the TermInfo structure
849 under the SCAN definition. Remember to initialize this, server-people.
851 Comstack should now support the WAIS protocol in TCP/IP mode. Note
852 that this does not extend to ODR and ASN.
854 Comstack allows insertion of established socket (primarily for
855 inetd-operation of servers). Doc updated.
857 Front-end server can now start from the inetd in TCP mode. Doc
864 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
865 the rank and record number.
867 Adjustments to the frontend server.
869 Fixed diagnostic BER dumper. It ignored the file argument.
873 Various changes to retrieval module.
875 Changed the union discriminators of the protocol files from enums to
876 ints paired with #defines.
878 *Changed oident.class to oident.oclass to avoid a reserved word in C++
881 *Changed operator in the RPN structure to 'roperator', again to avoid a
884 Fixed problems in Explain decoders/encoders.
888 Memory bug in log module fixed.
892 Occasional malloc() of 0 bytes fixed in d1_espec.c.
894 Bug in Explain DatabaseInfo module fixed.
896 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
900 The shift to v1.0 signals that we now consider the *core* functionality
901 of YAZ reasonably stable (the core being more or less equivalent to
902 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
903 tested (Explain not at all - though that will happen soonish).
905 Minor changes to code to support Windows port.
907 Various minor changes after we're getting to use GRS-1 & co. more.
909 Added Espec-1 format.
911 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
912 of the protocol and it cannot be selected when encoding (maps into 'string'
913 when decoding). Needed to talk to some servers.
915 Demo client can request simple element set names.
917 Added Diagnostic Format encoders/decoders.
919 Added simple Close handling to frontend server (no hooks for resource
920 reporting yet), and demonstration client.
922 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
926 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
927 handled incorrectly when records were requested in the searchResponse. This
928 will only affect you if you use the frontend-server.
930 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
931 Test-client will ask for and print GRS1. Ztest will return dummy records
934 Added Explain encoders/decoders to the service-level API. Untested.
936 Added Extended Services: Item Order encoders and decoders to the Service-
937 level API. Untested. We could use a recent copy of the pertinent bits
938 of the ILL protocol to add those bits.
940 Added diagnostic format 1 encoders/decoders to the service-level API.
943 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
944 odr_cons.c, which causes a more correct output.
946 Fixed handling of searchRequest in frontend server. NextResultSetPosition
947 was always set to 0 when no records were requested in the searchRequest.
949 * Added better external-handling. This shouldn't harm old code that
950 *encodes* externals. It can break code that looks for a
951 'single-ASN1-type' representation, since those types that are known
952 are now decoded immediately. Look at the SUTRS sample code in
953 seshigh.c and client.c. Documentation updated.
955 Handling of structured records in bend_fetchresponse. Length -1 marks
956 structured record, type is deduced from format field.
959 Fairly quick maintenance release to add SUTRS support.
961 Fixed handling of SUTRS records in the demonstration client.
963 * Added format field to the bend_fetchrequest and bend_fetchresponce
964 structures of the backend API (frontend server). When the record is
965 returned, the value of the format field is mapped to an OID. The
966 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
967 of the record. The special value VAL_NONE in the bend_request means
968 that no specific format was requested by the client. Documentation
969 updated accordingly. Test server (ztest) will return a fixed dummy
970 SUTRS record if your client requests SUTRS.
972 Documentation updated accordingly.
974 You can now set external libraries and RANLIB support in the top-level
978 First public release.