1 Possible compatibility problems with earlier versions marked with '*'.
3 New ZOOM option "step" which specifies number of records to be
4 retrieved in one chunk. Used in conjunction with "start" and "count".
6 SRW support for yaz-client.
8 yaz-client no longer does (un)intelligent character set conversions
9 by default. Can be enabled with charset and marc_charset commands.
11 xmalloc trace fix for 64-bit systems such as DEC alpha.
13 Solaris 2.6 compile fix.
17 New Debian package layout similar to the Redhat Package layout.
19 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
20 and search result respectively.
24 Redhat package is now several packages: libyaz (runtime libraries),
25 libyaz-devel (development and documentation, and yaz (utility programs).
26 Package spec file by Morten Bøgeskov.
28 New member 'schema' in struct bend_fetch_rr which the name of requested
29 schema (SRW/SRU) for record (or NULL if none was given). The fetch
30 handler MAY set this to reflect the schema of the returned record.
32 New member 'display_term' in struct scan_entry. GFS now sets member entries
33 and allocates scan entries to be filled by user scan handler. In previous
34 version, entries member was allocated by the scan handler. That still works,
35 but the GFS will ignore member display_term - assuming it was NOT set by
36 the handler. The fact that the GFS now allocates the entries both allows
37 for new members and makes a scan handler easier to write.
39 Fix CQL lex buffer overflow.
41 SRW/SRU recordPacking. For SRW default recordPacking is string. For
42 SRU default recordPacking is string.
44 SRU protocol support for frontend server.
46 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
48 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
50 Added scan for the ZOOM shell (zoomsh).
54 * String Identifers for Schemas (Amendment 5).
55 http://lcweb.loc.gov/z3950/agency/amend/am5.html
56 Old definition for schema
57 Odr_oid *schema; /* OPT */
62 Z_InternationalString *uri;
63 #define Z_Schema_oid 1
64 #define Z_Schema_uri 2
67 * resultCount parameter to Sort Response (Amendment 1).
68 http://lcweb.loc.gov/z3950/agency/amend/am1.html
70 Support for SRW 1.0 over HTTP. This is an optional feature and
71 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
74 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
75 on the same port. SRW SearchRetrieveRequests are mapped
76 to bend_init,bend_search,bend_fetch,bend_close.
78 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
80 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
81 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
83 ZOOM connections are SRW based if schem http is used for hostname
84 in connect, e.g. z = ZOOM_connection_new("http://myserver");
85 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
87 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
88 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
89 distance=n, order=true/false, relation=le, prox unit=word. If
90 n is omitted, distance 1 is used.
92 Fixed problem with C compiler include path in wrong order.
94 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
95 on Solaris. Patch from Ko van der Sloot.
97 New MARC decode API. All new functions operate on a yaz_marc_t
98 handle. The most important new functions are: yaz_marc_create,
99 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
100 decode and destroy respectively. Decoder can produce formats
101 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
102 include/yaz/marcdisp.h.
104 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
105 to UTF-8, UCS-32, wchar_t or Latin-1.
107 * Prototypes for yaz_iconv_-functions moved to separate header
108 include/yaz/yaz-iconv.h.
110 Make a few private functions 'static' in unix.c. This prevents
111 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
113 For ZOOM connection, the options targetImplementation{Id,Name,Version}
114 are set when Init Response is received.
116 New function ZOOM_connection_error_x similar to ZOOM_connection_error
117 but returns diagnostic set as well.
119 New function yaz_strerror which is a portable wrapper for
120 strerror/strerror_r/GetLastMessage.
122 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
123 is returned for MARC. If type is "oai", then OAI MARC is returned.
125 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
130 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
132 Fix bad race conditions on SIGTERM and terminate gracefully in
135 Move retrieval (data1) module to Zebra since nobody seems to be
138 Add GRS-1 render for ZOOM using same format as yaz-client.
142 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
144 Fix broken ESpec handling in data1 module.
146 SGML reader parses comments and makes them part of the data1 tree.
148 Added several type casts so that YAZ compiles as C++ code.
150 ZOOM didn't handle PDU encoding failures properly.
152 Added more Bib-1 diagnostics (approved extensions).
154 GNU configure: better check for iconv.
156 More portable use of accept, getpeername. Check for socklen_t. Use
157 int/size_t if socklen_t is not defined.
161 PQF parser rejects bad queries - including those with extra
162 characters in them. PQF parser used to silently ignore that.
163 Cleaner API for PQF added, which allows you to get detailed
164 error information for bad queries (see yaz/pquery.h).
166 Fixed bug in ZOOM_record_get for type "database".
168 Implemented mini iconv library supporting conversions between
169 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
171 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
175 Fixed ZOOM C record cache so that preferredRecordSyntax and
176 elementSetName is used to check for already fetched records.
180 Added three members in bend_initrequest structure to facilitate
181 character set negotiation.
183 Fixed a bug in frontend server that could cause indefinite
184 loops under rare conditions.
186 Revised character set utilities (charneg.h) so that encoding
187 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
189 For PQF, directive @term <type> sets term type for Scan/Search.
190 Here <type> is general, string, numeric, null. The term type
191 is inherited - just like @attr.
193 New call odr_set_charset that sets character set conversion for
194 international-strings on a ODR stream. Prototype is:
195 int odr_set_charset(ODR o, const char *to, const char *from);
196 The InternationalString is still represented as C string in YAZ
197 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
198 won't). On the protocol level, you can use any encoding.
200 Support for UNIX sockets in ZOOM.
202 Solaris recv sometimes returns errno == ENOENT. It is treated as
203 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
205 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
206 both client and server. Code by Morten Bøgeskov.
210 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
211 that they can be used directly from Visual Basic. You must recompile
212 your windows APP if you're using ZOOM.
214 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
215 Commands "lang" and "charset" sets language and character set respectively.
216 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
217 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
219 Attributes from multiple CCL fields may be OR'ed rather than merged
220 using directive "@field or". Fields are still merged by default -
221 equivalent to "@field merge".
223 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
226 Fixed bug in zget for parameter ExtendedServicesResponse.
232 Added PQF feature: '@attr type=value' may be written as '@type=value'.
234 Client displays USR.1:SearchResult-1 (hits per term).
236 Additional Search Info for search in Generic Frontend Server.
238 Fixed CCL parsing of "field=s".
240 WIN32 installer - using the excellent NSIS software from nullsoft.
242 Fixed CCL parsing of "field = - <number>".
244 Added function yaz_marc_decode that decodes MARC for line mode
245 display or XML (similar to that used by JZKit).
247 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
248 Z39.50. But ISO/ILL was, however.
250 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
251 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
253 http://lcweb.loc.gov/z3950/agency/amend/am2.html
254 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
258 New YAZ client features: Command completion and new commands:
259 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
260 Code provided by Jacob Poulsen.
262 New call oid_trav, that visits all registered OIDs via callback.
264 Function ZOOM_record_get now returns const char pointer rather than
265 void pointer. It saves a lot of type casts.
267 For YAZ client, command "auth" now allows you to set authentication
268 in IdPass style. It is enabled when three tokens are given - order
269 is user, group and password.
271 Fix memory leaks in MARC record handling for ZOOM.
273 New option for YAZ client, -k <kilobytes> that sets
274 maximum record size. Similar to -k option for generic frontend
275 server and yaz-ztest.
277 More fixes for scan. Non-zero stepSize handled. OID's fixes.
279 Prefix query parser reports "fail" when bad attribute set is given.
281 Fix in MARC decoder. Proximity logging. Fix for attribute set
282 in scan handler for server. Patches by Shigeru Ishida.
284 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
287 Configure option --with-openssl=<dir> now works when a directory is
288 specified. Patch provided by Morten Bøgeskov.
290 New option for YAZ client, -u <auth>, that sets authentication.
292 ZOOM fix: error information was sometimes "missing", since error
293 was cleared/reset too when it shouldn't.
295 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
299 Scan for ZOOM API. New object ZOOM_scanset. New functions
300 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
301 ZOOM_scanset_destroy.
303 New ZOOM function, ZOOM_connection_last_event, that returns type
304 of last event (such as "receive data", "send data", "apdu received",
307 New ZOOM option, schema, that specifies schema for retrieval.
309 New CCL feature. Qualifiers can be aliases for one or more
310 other qualifiers (if more than one is given, OR is used).
312 ZOOM uses named result sets if target supports it.
314 Two new YAZ client commands: . (dot, which sources a script of YAZ
315 client commands), and ! (to execute shell command.). Implemented
318 Working on Debian packages.
322 YAZ client enables named result sets only if target supports it.
324 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
326 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
327 with key="host" to get same result.
329 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
330 Function Z3950_resultset_record(s) returns references to records
331 "owned" by resultset. To become owner use Z3950_record_clone.
333 Function z_ext_record handles Extended Services. Thanks to
338 CCL Parser fix: ignore token comma when dealing with and-lists.
340 Documentation updates for COMSTACK.
342 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
343 Changed prototype Z3950_records. For some functions, int parameters
344 were changed to size_t.
346 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
349 New MARC decode/display function, marc_display_exl, which properly rejects
350 non-ISO2709 records. YAZ client uses it.
354 Fix bug: local attribute set wasn't set correctly in PQF strings.
358 * Old Z39.50 codecs no longer supported.
360 Added ZOOM C binding. See http://zoom.z3950.org/
362 Renamed states for COMSTACKs to avoid confusion with events.
364 Implemented cs_look and proper cs_rcvconnect.
366 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
368 Configure detects POSIX threads on OpenBSD.
370 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
371 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
373 When error is returned from present handler, non-surrogate diagnostic
374 is returned in present response (and fetch handler is no longer called).
376 * Minor adjustments to pquery parser (PQF). Token characters may be
377 escaped by using backslash (C-style).
379 PQF parser allows string attribute values to be specified. For @attr,
380 non-numeric characters after the equal-sign are treated as strings
381 (e.g. @attr 9=title).
383 CCL trunction character may be defined (@truncation in file)
385 * function zget_ExtendedServicesRequest sets waitAction to
386 waitIfPossible (was wait).
388 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
391 CCL operator names may be set in field definition files (CCL_bibset).
392 See ccl/bib1 for an example.
394 Fixes in ASN.1 compiler for C++ compatibility.
396 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
397 and "op_or" to avoid conflict with C++.
399 Fixed problem with GNU readline detection on Redhat 7.0.
401 Added step-size for Scan backend handler.
403 Fixed bug that made the frontend server crash when no attribute
404 set was specified for scan.
406 Front-end server automatically switches to original working directory
407 when installed as an NT service. Previously -w had to be specified to
410 Added extended attributes for retrieval module (data1), so that data1
411 records carry d1_readXML/SGML attributes. d1_read also supports
412 null-data rules ( <tag/>)
414 On UNIX when POSIX threads are available, a separate library libyazthread
415 is created. Programmers should link with that library and the yaz library
416 when using threads. The reason for the split was that some applications
417 on Linux, such as Apache, doesn't work well when using shared objects that
420 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
421 (or any frontend server) in SSL mode by specifying ssl: followed by
422 address. Only tested on UNIX.
424 Added feature for CCL module. Virtual structure s=al or s=ol generates
425 and-list and or-list respectively instead of phrase search.
429 * Added prefix "yaz_" for the functions log_init.., log_file.. and
430 log_mask_str. This was done to avoid name conflicts with other libraries
431 (such as other PHP extensions).
433 Added raw OID member for preferred record syntax (request_format_raw)
434 and returned record syntax (output_format_raw) for backend fetch method.
436 Config file yaz-config now accepts options so that it returns specific
437 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
439 Shared library support for UNIX using GNU libtool.
441 * Modified backend interface. Request/Response struct's replaced by
442 one read/write C struct. For example bend_fetchrequest and
443 bend_fetchresult have been replaced by single bend_fetch_rr struct.
444 Every handler - even search has to be registered in bend_init
445 handler. This means that the YAZ library no longer refers to
446 external functions and it makes it possible to make the whole
447 thing a single DLL/SO.
449 Added Segment handler for backend server.
451 Added Zmbol/Zebra administrative functions to YAZ client.
453 Threaded frontend server on UNIX (when POSIX Threads are available).
454 Starting the server with option -T enables multi-threading.
458 Added configure option --enable-comp/disable-comp to control use
459 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
460 located in sub directory asn.
462 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
463 in ${exec_prefix}/bin along with the other programs yaz-client and
466 GNU automake used to maintain makefiles.
470 Changed retrieval module so that we can load records with no abstract
471 syntax defined. Tagpaths in these records are fully composed of string
474 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
478 On UNIX, the generated makefile now supports a proper 'make install'.
479 The prefix can be set via GNU configure to set the install location
480 (default is /usr/local).
482 * YAZ programs client and ztest were renamed to yaz-client and
483 yaz-ztest to avoid conflicts when users install YAZ in "standard"
484 locations, such as /usr/bin,/usr/local/bin,etc.
486 * YAZ Header files were moved from include to include/yaz. YAZ Header
487 files are referred to as include <yaz/log.h> rather than <log.h>.
488 The YAZ include path (-I ..) is therefore the same as before. Programmers
489 should update their #include statements or use -Ipath/include/yaz
490 instead. The main motivation for doing this change is that YAZ header files
491 can be installed in "standard" locations /usr/include,/usr/local/include
492 without introducing conflicts, since ALL YAZ header files are stored
493 in subdirectory yaz (under /usr/include for example).
495 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
496 rather than project/workspace files. We switched because project files
497 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
500 Changed name of logging function, logf, to yaz_log, to prevent name
501 clash with some math-log functions. The YAZ header log.h defines logf
502 to yaz_log (#define) so there should be no incompatibilities by this
505 Added bend_start/bend_stop handlers for server. These handler are
506 called on start/stop of server. For windows they are called whenever
507 a service is started/stopped.
509 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
510 a fairly small ASN.1 compiler written in Tcl. The compiler is located
511 in util/yc.tcl. The auto-generated C code structures are, in a few
512 cases, incompatible with the old decoders. There are differences in the
513 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
514 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
515 The preprocessor variable ASN_COMPILED is defined when the compiled
516 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
517 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
518 wish to use the old encoders/decoders you can specify --disable-yc
521 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
522 version so that it supports both new - and old version of DB Update
524 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
525 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
526 change. The name parameter can be set to 0 in which no name is specified
527 for the construction. The macros odr_implicit and odr_explicit sets name
528 parameter to zero for the construction involved. New macros
529 odr_implicit_tag and odr_explicit_tag are similar to the others,
530 except that a name parameter is added. For programmers' that don't use
531 ODR they probably only need to change the call to z_APDU and z_External.
533 Added access control facility by interfacing the TCP wrapper library.
534 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
535 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
536 name of the daemon and enables the access control as specified in
537 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
539 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
540 den Dool <H.M.vdnDool@kub.nl>.
542 Added reference ID parameter to most functions in server API - refer
543 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
545 Changed name of ccl library to libccl.a (was ccl.a).
547 Fixed bug in decoder for Explain (Category TargetInfo).
549 Added support for GNU readline in client. Thanks to Jacob Poulsen
550 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
552 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
553 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
554 IMPLEMENTATION! This change was made to the development version before
555 the ZIG decided to retract the amendment. If any users MUST be
556 compatible with the original Update definition, PLEASE CONTACT US, and
557 we will include a separate definition corresponding to the old Update
558 ES. Note that because of the change to the ASN.1 of the
559 TaskPackageRecordStructure we cannot define a single structure that
560 will support both versions.
562 * Added const modifier to buffer parameter for some ODR/BER encoding
563 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
564 completeWAIS, odr_dumpBER.
566 Fixed bug in client.c which caused a crash when a scanResponse didn't
567 contain positionOfTerm.
569 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
570 * will cause an error in a client if a non-YAZ target sends both a
571 * list of Scan entries and non-surrogate diagnostics.
573 Retrieval module enhancements. Tag sets may be typed in the reference
574 to it. From the .abs-file the "tagset" directive takes a third optional
575 integer type for the tag set referenced. From a .tag-file the "include"
576 directive takes a third optional type as well. The old "type" directive
577 in the tag set itself is still recognized but acts as the default type
580 Backend interface change. Individual Scan terms returned from bend_scan
581 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
582 in include/backend.h.
584 Retrieval module enhancements. Multiple tag sets and attribute sets may
585 be specified in abstract syntax specs. Revised the error/warning for
586 logging messages reported by the retrieval module when reading the
589 Object Identifier system (oid_..) changed. The API is backwards
590 compatible but the oid-routines now allocates new OID's when needed.
591 Raw OID's may be specified in oid_getvalbyname.
593 YAZ now uses GNU configure to generate Makefile(s).
595 * Minor changes in some of the member names of DeleteResultSetRequest and
596 DeleteResultSetResponse. See include/proto.h.
598 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
599 and added member 'languages' in TargetInfo (which was missing).
601 Changed the way attribute sets are handled in the retrieval
602 module. These are now cached, just like the abstract syntaxes
605 Changed YAZ so that it links with compiled ASN.1.
607 Added Explain-schema definitions and mapping routines. The following
608 Explain categories have been implemented: AttributeDetails,
609 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
611 Fixed minor bug in Windows version of Server Library.
613 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
615 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
617 Added EXTERNAL: UNIverse Resource Report (non-standard).
619 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
620 ENUMERATED and SET OF.
622 * Added 'const' to some of the char pointer arguments for the
623 functions, data1_read_node, data1_getelementbytagname,
624 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
627 Fixed bug in data1_insert_taggeddata - the last_child member of
628 parent wasn't initialised.
630 * Changed data1_read_record and data1_read_node so that the supplied
631 "SGML"-buffer is read-only. In particular the resulting data1 - tree
632 doesn't refer to any parts of the "SGML"-buffer.
634 Fixed bug in server library (Windows version of statserv_remove).
636 * Changed code so that it compiles as C++. The type definition
637 of Odr_fun which is a member of Odr_arm was changed. The result is,
638 that an explicit typecast is needed for the fun pointer when
639 using Odr_arm - as in:
640 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
642 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
644 Implemented the new structured date and time definition as approved
645 by the ZIG. Added schemaId element to the specificTag in Espec-1
646 (also approved at the last ZIG). Thanks to RVDM.
648 Added some Object identifiers (RVDM).
650 Changed the Update Extended Service (RVDM).
652 Added command "refid" to client which specifies referenceId for
653 the following requests.
655 Implemented extended service handling for server. See ztest.c
656 for an example as well as backend.h. New handlers are registerd
659 * Changed interface for sort in server.
661 Added new members to statserv_options_block. It allows a server
662 to read options from another source than just the command line. Thanks
663 to Charles Woodfield.
665 * Changed definition of Z_Triple in file prt-grs.h - member boolean
666 renamed to zboolean. Some C++ compilers complained about the name.
668 Minor changes to gils.abs. Added index 's' (sort) on title
669 and date/time-last-modified.
673 Fixed bug in server library regarding inetd mode (-i). This bug
674 was introduced by release 1.4.
678 Added sort facility in client and backend server interface.
680 Fixed problem with dependencies in Makefile(s).
682 Fixed bugs for encoders/decoders of extended services and
685 Implemented sub-tree feature for schemas. Sub-trees are
686 referenced in *.abs-files. See explain.abs for an example
687 of the use of this feature.
689 Modified bib1.att; local attributes for ANY didn't include
690 ANY itself (only affects use of the retrieval module).
692 Fixed bug in plain SGML reader in function data1_read_node:
693 tags with prefix "var" was incorrectly interpreted as variants.
695 Added feature "sub-schemas" to enable references to - and definitions
696 of - group of elements.
698 * Removed member parent from type data1_element (in data1.h).
700 Implemented function odr_nullval() that returns the value of
703 * Removed member num_children from data1_node (in data1.h).
705 Made NT service interface part of the server library. The
706 function statserv_main uses the NT service when required and
707 calls the statserv_start / statserv_close routines.
709 Routine zget_SearchRequest and zget_PresentRequest fills
710 resultSetName/Id member with "default" instead of "Default".
712 Fixed memory leak in server. Request queue member wasn't freed.
714 Fixed nmem_exit so that memory is freed.
718 Revised the CCL parser utility to be thread safe.
720 Added function, oid_ent_to_oid, to replace the function
721 oid_getoidbyent, which is not thread safe.
723 * Added nmem_init and nmem_exit to initialize and release
724 NMEM resources. Function nmem_init should be called once in the
725 initial thread before NMEM/ODR is used. statserv.c and client.c
726 have been changed accordingly. The change was necessary to make
727 NMEM thread safe. The NMEM memory pool is shared amongst threads
728 in a process. Unix-based applications will still work fine without
731 Added NT Services interface for the the Z39.50 (statserv) Server.
732 Refer to the ztest.c source on the usage.
734 Windows 95/NT port using MSVC5.0. Project files are included in the
737 * Defined new 'global' handle for the retrieval (data1) system. The
738 new handled, data1_handle, describes the state of the data1 system.
739 This handle is passed as first argument to virtually all
740 data1 related routines. The functions data1_create and data1_destroy
741 creates and destroys a data1 handle respectively.
743 Added ODR encode stream member to all backend request structures
744 init, search, scan etc. This stream should be used to allocate all
745 memory used for the response when thread safe operation is needed.
747 Changed the comstack utility, cs_addstr, to be thread safe. The
748 returned hostname string returned by the function is now part the
751 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
752 function. The cs_straddr takes a COMSTACK handle as argument, so this
753 function must be used after cs_create and before bind/connect.
754 This function is thread safe.
756 Moved test server to 'ztest' directory - generic server code still
757 in 'server' directory.
759 Made prefix query (pquery.c) utility thread safe.
761 Added new function modifier YAZ_EXPORT to 'export' public DLL
762 functions when using windows (see include/yconfig.h).
764 Added definitions to the OID database (util/oid.c) (RVDM).
766 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
768 Added call to ccl_rpn_delete in client program.
770 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
771 release of RPN structure.
773 Added support for C++, headers uses extern "C" for public definitions.
774 With input from RVDM.
776 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
777 Thanks to Ronald van der Meer (RVDM).
779 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
781 Added support for private extensions to the OID database
782 (oid_setprivateoids()). Thanks to RVDM.
784 Added optional, physical ANY (key replication)
786 Fixed null-reference problem in GRS-1 output filter.
788 Proximity operator added to Prefix Query Format (PQF).
790 In test client command "base" accepts multiple databases.
792 Fixed bug in cs_close stack that caused trouble with WINSOCK.
796 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
798 Smallish bug-fixes in the new encoders/decoders (explain).
800 Bug fixed in DeleteRequest.
802 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
804 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
806 Added SOIF syntax (using private OID for now) to retrieval module and client.
808 Added Update extended service.
810 Added SearchResult-1 additional info structure.
812 Added optional CCL (ISO8777) interpreter as separate module. Available
815 --- 1.2 1996/6/10 (1st anniversary release)
817 Added Summary record syntax. Lightly tested.
819 Added OPAC record syntax. Untested.
821 Added ResourceReport service encoders/decoders. Untested.
823 Fixed bug in z_Unit - wrong tagging on unitSystem.
825 Fixed bug in the DiagRecs decoder.
827 Added options for max PDU size and session timeout to frontend-server.
829 Added documentation of query-language parsers and other supporting utilities.
831 [frontend-server] Added Attribute set to the bend_scanrequest API.
833 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
834 surrogate diagnostics were generated.
836 [retrieval] Allow multiple local values for attribute.
838 [retrieval] Allow multiple attributes per element in .abs files. index type.
840 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
844 Minor changes, mostly specific to Zebra's requirements (retrieval)
848 Repaired bug in frontend server when running multiple listening
849 endpoints in dynamic mode.
851 z_External() now won't break if a known, ASN.1 value comes encapsulated
852 in an octet-string. The value will pass through unmodified in an Odr_oct.
854 Added a bit of code to the demo client to decode & display
855 ASN.1-structured records represented in the octet-aligned branch of
856 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
858 Added z_ext_getentbyref() to the ASN module. Doc updated.
860 * Completed the SCAN definition in the ASN module. This may break SCAN
861 code based on older YAZ-versions at compile-time. The fix is easy -
864 * Added 'displayTerm' and OtherInformation to the TermInfo structure
865 under the SCAN definition. Remember to initialize this, server-people.
867 Comstack should now support the WAIS protocol in TCP/IP mode. Note
868 that this does not extend to ODR and ASN.
870 Comstack allows insertion of established socket (primarily for
871 inetd-operation of servers). Doc updated.
873 Front-end server can now start from the inetd in TCP mode. Doc
880 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
881 the rank and record number.
883 Adjustments to the frontend server.
885 Fixed diagnostic BER dumper. It ignored the file argument.
889 Various changes to retrieval module.
891 Changed the union discriminators of the protocol files from enums to
892 ints paired with #defines.
894 *Changed oident.class to oident.oclass to avoid a reserved word in C++
897 *Changed operator in the RPN structure to 'roperator', again to avoid a
900 Fixed problems in Explain decoders/encoders.
904 Memory bug in log module fixed.
908 Occasional malloc() of 0 bytes fixed in d1_espec.c.
910 Bug in Explain DatabaseInfo module fixed.
912 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
916 The shift to v1.0 signals that we now consider the *core* functionality
917 of YAZ reasonably stable (the core being more or less equivalent to
918 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
919 tested (Explain not at all - though that will happen soonish).
921 Minor changes to code to support Windows port.
923 Various minor changes after we're getting to use GRS-1 & co. more.
925 Added Espec-1 format.
927 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
928 of the protocol and it cannot be selected when encoding (maps into 'string'
929 when decoding). Needed to talk to some servers.
931 Demo client can request simple element set names.
933 Added Diagnostic Format encoders/decoders.
935 Added simple Close handling to frontend server (no hooks for resource
936 reporting yet), and demonstration client.
938 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
942 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
943 handled incorrectly when records were requested in the searchResponse. This
944 will only affect you if you use the frontend-server.
946 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
947 Test-client will ask for and print GRS1. Ztest will return dummy records
950 Added Explain encoders/decoders to the service-level API. Untested.
952 Added Extended Services: Item Order encoders and decoders to the Service-
953 level API. Untested. We could use a recent copy of the pertinent bits
954 of the ILL protocol to add those bits.
956 Added diagnostic format 1 encoders/decoders to the service-level API.
959 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
960 odr_cons.c, which causes a more correct output.
962 Fixed handling of searchRequest in frontend server. NextResultSetPosition
963 was always set to 0 when no records were requested in the searchRequest.
965 * Added better external-handling. This shouldn't harm old code that
966 *encodes* externals. It can break code that looks for a
967 'single-ASN1-type' representation, since those types that are known
968 are now decoded immediately. Look at the SUTRS sample code in
969 seshigh.c and client.c. Documentation updated.
971 Handling of structured records in bend_fetchresponse. Length -1 marks
972 structured record, type is deduced from format field.
975 Fairly quick maintenance release to add SUTRS support.
977 Fixed handling of SUTRS records in the demonstration client.
979 * Added format field to the bend_fetchrequest and bend_fetchresponce
980 structures of the backend API (frontend server). When the record is
981 returned, the value of the format field is mapped to an OID. The
982 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
983 of the record. The special value VAL_NONE in the bend_request means
984 that no specific format was requested by the client. Documentation
985 updated accordingly. Test server (ztest) will return a fixed dummy
986 SUTRS record if your client requests SUTRS.
988 Documentation updated accordingly.
990 You can now set external libraries and RANLIB support in the top-level
994 First public release.