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