1 Possible compatibility problems with earlier versions marked with '*'.
3 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
5 New ODR utility, odr_getelement, which returns name of element for
6 which encoding/decoding failed.
8 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
9 in cases where a required element was omitted.
11 Bug fix: some MARC8 sequences were not converted.
13 New ZOOM option "step" which specifies number of records to be
14 retrieved in one chunk. Used in conjunction with "start" and "count".
16 SRW support for yaz-client. Use scheme http: to use it, e.g.
19 yaz-client no longer does (un)intelligent character set conversions
20 by default. Can be enabled with charset and marc_charset commands.
22 xmalloc trace fix for 64-bit systems such as DEC alpha.
24 Solaris 2.6 compile fix.
26 New function, cql_strerror() translates SRW error codes, as returned
27 by cql_transform_error(), into human-readable English strings. Used
28 in yaz-client diagnostics when appropriate.
30 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
31 converts it into a type-1 query which is sent to the server. This
32 makes CQL available for use with all Z-servers, as opposed to the tiny
33 minority that can handle CQL queries themselves.
37 New Debian package layout similar to the Redhat Package layout.
39 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
40 and search result respectively.
44 Redhat package is now several packages: libyaz (runtime libraries),
45 libyaz-devel (development and documentation, and yaz (utility programs).
46 Package spec file by Morten Bøgeskov.
48 New member 'schema' in struct bend_fetch_rr which the name of requested
49 schema (SRW/SRU) for record (or NULL if none was given). The fetch
50 handler MAY set this to reflect the schema of the returned record.
52 New member 'display_term' in struct scan_entry. GFS now sets member entries
53 and allocates scan entries to be filled by user scan handler. In previous
54 version, entries member was allocated by the scan handler. That still works,
55 but the GFS will ignore member display_term - assuming it was NOT set by
56 the handler. The fact that the GFS now allocates the entries both allows
57 for new members and makes a scan handler easier to write.
59 Fix CQL lex buffer overflow.
61 SRW/SRU recordPacking. For SRW default recordPacking is string. For
62 SRU default recordPacking is string.
64 SRU protocol support for frontend server.
66 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
68 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
70 Added scan for the ZOOM shell (zoomsh).
74 * String Identifers for Schemas (Amendment 5).
75 http://lcweb.loc.gov/z3950/agency/amend/am5.html
76 Old definition for schema
77 Odr_oid *schema; /* OPT */
82 Z_InternationalString *uri;
83 #define Z_Schema_oid 1
84 #define Z_Schema_uri 2
87 * resultCount parameter to Sort Response (Amendment 1).
88 http://lcweb.loc.gov/z3950/agency/amend/am1.html
90 Support for SRW 1.0 over HTTP. This is an optional feature and
91 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
94 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
95 on the same port. SRW SearchRetrieveRequests are mapped
96 to bend_init,bend_search,bend_fetch,bend_close.
98 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
100 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
101 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
103 ZOOM connections are SRW based if schem http is used for hostname
104 in connect, e.g. z = ZOOM_connection_new("http://myserver");
105 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
107 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
108 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
109 distance=n, order=true/false, relation=le, prox unit=word. If
110 n is omitted, distance 1 is used.
112 Fixed problem with C compiler include path in wrong order.
114 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
115 on Solaris. Patch from Ko van der Sloot.
117 New MARC decode API. All new functions operate on a yaz_marc_t
118 handle. The most important new functions are: yaz_marc_create,
119 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
120 decode and destroy respectively. Decoder can produce formats
121 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
122 include/yaz/marcdisp.h.
124 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
125 to UTF-8, UCS-32, wchar_t or Latin-1.
127 * Prototypes for yaz_iconv_-functions moved to separate header
128 include/yaz/yaz-iconv.h.
130 Make a few private functions 'static' in unix.c. This prevents
131 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
133 For ZOOM connection, the options targetImplementation{Id,Name,Version}
134 are set when Init Response is received.
136 New function ZOOM_connection_error_x similar to ZOOM_connection_error
137 but returns diagnostic set as well.
139 New function yaz_strerror which is a portable wrapper for
140 strerror/strerror_r/GetLastMessage.
142 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
143 is returned for MARC. If type is "oai", then OAI MARC is returned.
145 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
150 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
152 Fix bad race conditions on SIGTERM and terminate gracefully in
155 Move retrieval (data1) module to Zebra since nobody seems to be
158 Add GRS-1 render for ZOOM using same format as yaz-client.
162 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
164 Fix broken ESpec handling in data1 module.
166 SGML reader parses comments and makes them part of the data1 tree.
168 Added several type casts so that YAZ compiles as C++ code.
170 ZOOM didn't handle PDU encoding failures properly.
172 Added more Bib-1 diagnostics (approved extensions).
174 GNU configure: better check for iconv.
176 More portable use of accept, getpeername. Check for socklen_t. Use
177 int/size_t if socklen_t is not defined.
181 PQF parser rejects bad queries - including those with extra
182 characters in them. PQF parser used to silently ignore that.
183 Cleaner API for PQF added, which allows you to get detailed
184 error information for bad queries (see yaz/pquery.h).
186 Fixed bug in ZOOM_record_get for type "database".
188 Implemented mini iconv library supporting conversions between
189 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
191 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
195 Fixed ZOOM C record cache so that preferredRecordSyntax and
196 elementSetName is used to check for already fetched records.
200 Added three members in bend_initrequest structure to facilitate
201 character set negotiation.
203 Fixed a bug in frontend server that could cause indefinite
204 loops under rare conditions.
206 Revised character set utilities (charneg.h) so that encoding
207 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
209 For PQF, directive @term <type> sets term type for Scan/Search.
210 Here <type> is general, string, numeric, null. The term type
211 is inherited - just like @attr.
213 New call odr_set_charset that sets character set conversion for
214 international-strings on a ODR stream. Prototype is:
215 int odr_set_charset(ODR o, const char *to, const char *from);
216 The InternationalString is still represented as C string in YAZ
217 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
218 won't). On the protocol level, you can use any encoding.
220 Support for UNIX sockets in ZOOM.
222 Solaris recv sometimes returns errno == ENOENT. It is treated as
223 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
225 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
226 both client and server. Code by Morten Bøgeskov.
230 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
231 that they can be used directly from Visual Basic. You must recompile
232 your windows APP if you're using ZOOM.
234 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
235 Commands "lang" and "charset" sets language and character set respectively.
236 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
237 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
239 Attributes from multiple CCL fields may be OR'ed rather than merged
240 using directive "@field or". Fields are still merged by default -
241 equivalent to "@field merge".
243 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
246 Fixed bug in zget for parameter ExtendedServicesResponse.
252 Added PQF feature: '@attr type=value' may be written as '@type=value'.
254 Client displays USR.1:SearchResult-1 (hits per term).
256 Additional Search Info for search in Generic Frontend Server.
258 Fixed CCL parsing of "field=s".
260 WIN32 installer - using the excellent NSIS software from nullsoft.
262 Fixed CCL parsing of "field = - <number>".
264 Added function yaz_marc_decode that decodes MARC for line mode
265 display or XML (similar to that used by JZKit).
267 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
268 Z39.50. But ISO/ILL was, however.
270 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
271 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
273 http://lcweb.loc.gov/z3950/agency/amend/am2.html
274 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
278 New YAZ client features: Command completion and new commands:
279 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
280 Code provided by Jacob Poulsen.
282 New call oid_trav, that visits all registered OIDs via callback.
284 Function ZOOM_record_get now returns const char pointer rather than
285 void pointer. It saves a lot of type casts.
287 For YAZ client, command "auth" now allows you to set authentication
288 in IdPass style. It is enabled when three tokens are given - order
289 is user, group and password.
291 Fix memory leaks in MARC record handling for ZOOM.
293 New option for YAZ client, -k <kilobytes> that sets
294 maximum record size. Similar to -k option for generic frontend
295 server and yaz-ztest.
297 More fixes for scan. Non-zero stepSize handled. OID's fixes.
299 Prefix query parser reports "fail" when bad attribute set is given.
301 Fix in MARC decoder. Proximity logging. Fix for attribute set
302 in scan handler for server. Patches by Shigeru Ishida.
304 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
307 Configure option --with-openssl=<dir> now works when a directory is
308 specified. Patch provided by Morten Bøgeskov.
310 New option for YAZ client, -u <auth>, that sets authentication.
312 ZOOM fix: error information was sometimes "missing", since error
313 was cleared/reset too when it shouldn't.
315 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
319 Scan for ZOOM API. New object ZOOM_scanset. New functions
320 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
321 ZOOM_scanset_destroy.
323 New ZOOM function, ZOOM_connection_last_event, that returns type
324 of last event (such as "receive data", "send data", "apdu received",
327 New ZOOM option, schema, that specifies schema for retrieval.
329 New CCL feature. Qualifiers can be aliases for one or more
330 other qualifiers (if more than one is given, OR is used).
332 ZOOM uses named result sets if target supports it.
334 Two new YAZ client commands: . (dot, which sources a script of YAZ
335 client commands), and ! (to execute shell command.). Implemented
338 Working on Debian packages.
342 YAZ client enables named result sets only if target supports it.
344 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
346 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
347 with key="host" to get same result.
349 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
350 Function Z3950_resultset_record(s) returns references to records
351 "owned" by resultset. To become owner use Z3950_record_clone.
353 Function z_ext_record handles Extended Services. Thanks to
358 CCL Parser fix: ignore token comma when dealing with and-lists.
360 Documentation updates for COMSTACK.
362 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
363 Changed prototype Z3950_records. For some functions, int parameters
364 were changed to size_t.
366 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
369 New MARC decode/display function, marc_display_exl, which properly rejects
370 non-ISO2709 records. YAZ client uses it.
374 Fix bug: local attribute set wasn't set correctly in PQF strings.
378 * Old Z39.50 codecs no longer supported.
380 Added ZOOM C binding. See http://zoom.z3950.org/
382 Renamed states for COMSTACKs to avoid confusion with events.
384 Implemented cs_look and proper cs_rcvconnect.
386 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
388 Configure detects POSIX threads on OpenBSD.
390 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
391 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
393 When error is returned from present handler, non-surrogate diagnostic
394 is returned in present response (and fetch handler is no longer called).
396 * Minor adjustments to pquery parser (PQF). Token characters may be
397 escaped by using backslash (C-style).
399 PQF parser allows string attribute values to be specified. For @attr,
400 non-numeric characters after the equal-sign are treated as strings
401 (e.g. @attr 9=title).
403 CCL trunction character may be defined (@truncation in file)
405 * function zget_ExtendedServicesRequest sets waitAction to
406 waitIfPossible (was wait).
408 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
411 CCL operator names may be set in field definition files (CCL_bibset).
412 See ccl/bib1 for an example.
414 Fixes in ASN.1 compiler for C++ compatibility.
416 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
417 and "op_or" to avoid conflict with C++.
419 Fixed problem with GNU readline detection on Redhat 7.0.
421 Added step-size for Scan backend handler.
423 Fixed bug that made the frontend server crash when no attribute
424 set was specified for scan.
426 Front-end server automatically switches to original working directory
427 when installed as an NT service. Previously -w had to be specified to
430 Added extended attributes for retrieval module (data1), so that data1
431 records carry d1_readXML/SGML attributes. d1_read also supports
432 null-data rules ( <tag/>)
434 On UNIX when POSIX threads are available, a separate library libyazthread
435 is created. Programmers should link with that library and the yaz library
436 when using threads. The reason for the split was that some applications
437 on Linux, such as Apache, doesn't work well when using shared objects that
440 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
441 (or any frontend server) in SSL mode by specifying ssl: followed by
442 address. Only tested on UNIX.
444 Added feature for CCL module. Virtual structure s=al or s=ol generates
445 and-list and or-list respectively instead of phrase search.
449 * Added prefix "yaz_" for the functions log_init.., log_file.. and
450 log_mask_str. This was done to avoid name conflicts with other libraries
451 (such as other PHP extensions).
453 Added raw OID member for preferred record syntax (request_format_raw)
454 and returned record syntax (output_format_raw) for backend fetch method.
456 Config file yaz-config now accepts options so that it returns specific
457 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
459 Shared library support for UNIX using GNU libtool.
461 * Modified backend interface. Request/Response struct's replaced by
462 one read/write C struct. For example bend_fetchrequest and
463 bend_fetchresult have been replaced by single bend_fetch_rr struct.
464 Every handler - even search has to be registered in bend_init
465 handler. This means that the YAZ library no longer refers to
466 external functions and it makes it possible to make the whole
467 thing a single DLL/SO.
469 Added Segment handler for backend server.
471 Added Zmbol/Zebra administrative functions to YAZ client.
473 Threaded frontend server on UNIX (when POSIX Threads are available).
474 Starting the server with option -T enables multi-threading.
478 Added configure option --enable-comp/disable-comp to control use
479 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
480 located in sub directory asn.
482 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
483 in ${exec_prefix}/bin along with the other programs yaz-client and
486 GNU automake used to maintain makefiles.
490 Changed retrieval module so that we can load records with no abstract
491 syntax defined. Tagpaths in these records are fully composed of string
494 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
498 On UNIX, the generated makefile now supports a proper 'make install'.
499 The prefix can be set via GNU configure to set the install location
500 (default is /usr/local).
502 * YAZ programs client and ztest were renamed to yaz-client and
503 yaz-ztest to avoid conflicts when users install YAZ in "standard"
504 locations, such as /usr/bin,/usr/local/bin,etc.
506 * YAZ Header files were moved from include to include/yaz. YAZ Header
507 files are referred to as include <yaz/log.h> rather than <log.h>.
508 The YAZ include path (-I ..) is therefore the same as before. Programmers
509 should update their #include statements or use -Ipath/include/yaz
510 instead. The main motivation for doing this change is that YAZ header files
511 can be installed in "standard" locations /usr/include,/usr/local/include
512 without introducing conflicts, since ALL YAZ header files are stored
513 in subdirectory yaz (under /usr/include for example).
515 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
516 rather than project/workspace files. We switched because project files
517 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
520 Changed name of logging function, logf, to yaz_log, to prevent name
521 clash with some math-log functions. The YAZ header log.h defines logf
522 to yaz_log (#define) so there should be no incompatibilities by this
525 Added bend_start/bend_stop handlers for server. These handler are
526 called on start/stop of server. For windows they are called whenever
527 a service is started/stopped.
529 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
530 a fairly small ASN.1 compiler written in Tcl. The compiler is located
531 in util/yc.tcl. The auto-generated C code structures are, in a few
532 cases, incompatible with the old decoders. There are differences in the
533 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
534 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
535 The preprocessor variable ASN_COMPILED is defined when the compiled
536 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
537 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
538 wish to use the old encoders/decoders you can specify --disable-yc
541 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
542 version so that it supports both new - and old version of DB Update
544 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
545 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
546 change. The name parameter can be set to 0 in which no name is specified
547 for the construction. The macros odr_implicit and odr_explicit sets name
548 parameter to zero for the construction involved. New macros
549 odr_implicit_tag and odr_explicit_tag are similar to the others,
550 except that a name parameter is added. For programmers' that don't use
551 ODR they probably only need to change the call to z_APDU and z_External.
553 Added access control facility by interfacing the TCP wrapper library.
554 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
555 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
556 name of the daemon and enables the access control as specified in
557 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
559 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
560 den Dool <H.M.vdnDool@kub.nl>.
562 Added reference ID parameter to most functions in server API - refer
563 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
565 Changed name of ccl library to libccl.a (was ccl.a).
567 Fixed bug in decoder for Explain (Category TargetInfo).
569 Added support for GNU readline in client. Thanks to Jacob Poulsen
570 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
572 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
573 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
574 IMPLEMENTATION! This change was made to the development version before
575 the ZIG decided to retract the amendment. If any users MUST be
576 compatible with the original Update definition, PLEASE CONTACT US, and
577 we will include a separate definition corresponding to the old Update
578 ES. Note that because of the change to the ASN.1 of the
579 TaskPackageRecordStructure we cannot define a single structure that
580 will support both versions.
582 * Added const modifier to buffer parameter for some ODR/BER encoding
583 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
584 completeWAIS, odr_dumpBER.
586 Fixed bug in client.c which caused a crash when a scanResponse didn't
587 contain positionOfTerm.
589 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
590 * will cause an error in a client if a non-YAZ target sends both a
591 * list of Scan entries and non-surrogate diagnostics.
593 Retrieval module enhancements. Tag sets may be typed in the reference
594 to it. From the .abs-file the "tagset" directive takes a third optional
595 integer type for the tag set referenced. From a .tag-file the "include"
596 directive takes a third optional type as well. The old "type" directive
597 in the tag set itself is still recognized but acts as the default type
600 Backend interface change. Individual Scan terms returned from bend_scan
601 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
602 in include/backend.h.
604 Retrieval module enhancements. Multiple tag sets and attribute sets may
605 be specified in abstract syntax specs. Revised the error/warning for
606 logging messages reported by the retrieval module when reading the
609 Object Identifier system (oid_..) changed. The API is backwards
610 compatible but the oid-routines now allocates new OID's when needed.
611 Raw OID's may be specified in oid_getvalbyname.
613 YAZ now uses GNU configure to generate Makefile(s).
615 * Minor changes in some of the member names of DeleteResultSetRequest and
616 DeleteResultSetResponse. See include/proto.h.
618 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
619 and added member 'languages' in TargetInfo (which was missing).
621 Changed the way attribute sets are handled in the retrieval
622 module. These are now cached, just like the abstract syntaxes
625 Changed YAZ so that it links with compiled ASN.1.
627 Added Explain-schema definitions and mapping routines. The following
628 Explain categories have been implemented: AttributeDetails,
629 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
631 Fixed minor bug in Windows version of Server Library.
633 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
635 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
637 Added EXTERNAL: UNIverse Resource Report (non-standard).
639 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
640 ENUMERATED and SET OF.
642 * Added 'const' to some of the char pointer arguments for the
643 functions, data1_read_node, data1_getelementbytagname,
644 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
647 Fixed bug in data1_insert_taggeddata - the last_child member of
648 parent wasn't initialised.
650 * Changed data1_read_record and data1_read_node so that the supplied
651 "SGML"-buffer is read-only. In particular the resulting data1 - tree
652 doesn't refer to any parts of the "SGML"-buffer.
654 Fixed bug in server library (Windows version of statserv_remove).
656 * Changed code so that it compiles as C++. The type definition
657 of Odr_fun which is a member of Odr_arm was changed. The result is,
658 that an explicit typecast is needed for the fun pointer when
659 using Odr_arm - as in:
660 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
662 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
664 Implemented the new structured date and time definition as approved
665 by the ZIG. Added schemaId element to the specificTag in Espec-1
666 (also approved at the last ZIG). Thanks to RVDM.
668 Added some Object identifiers (RVDM).
670 Changed the Update Extended Service (RVDM).
672 Added command "refid" to client which specifies referenceId for
673 the following requests.
675 Implemented extended service handling for server. See ztest.c
676 for an example as well as backend.h. New handlers are registerd
679 * Changed interface for sort in server.
681 Added new members to statserv_options_block. It allows a server
682 to read options from another source than just the command line. Thanks
683 to Charles Woodfield.
685 * Changed definition of Z_Triple in file prt-grs.h - member boolean
686 renamed to zboolean. Some C++ compilers complained about the name.
688 Minor changes to gils.abs. Added index 's' (sort) on title
689 and date/time-last-modified.
693 Fixed bug in server library regarding inetd mode (-i). This bug
694 was introduced by release 1.4.
698 Added sort facility in client and backend server interface.
700 Fixed problem with dependencies in Makefile(s).
702 Fixed bugs for encoders/decoders of extended services and
705 Implemented sub-tree feature for schemas. Sub-trees are
706 referenced in *.abs-files. See explain.abs for an example
707 of the use of this feature.
709 Modified bib1.att; local attributes for ANY didn't include
710 ANY itself (only affects use of the retrieval module).
712 Fixed bug in plain SGML reader in function data1_read_node:
713 tags with prefix "var" was incorrectly interpreted as variants.
715 Added feature "sub-schemas" to enable references to - and definitions
716 of - group of elements.
718 * Removed member parent from type data1_element (in data1.h).
720 Implemented function odr_nullval() that returns the value of
723 * Removed member num_children from data1_node (in data1.h).
725 Made NT service interface part of the server library. The
726 function statserv_main uses the NT service when required and
727 calls the statserv_start / statserv_close routines.
729 Routine zget_SearchRequest and zget_PresentRequest fills
730 resultSetName/Id member with "default" instead of "Default".
732 Fixed memory leak in server. Request queue member wasn't freed.
734 Fixed nmem_exit so that memory is freed.
738 Revised the CCL parser utility to be thread safe.
740 Added function, oid_ent_to_oid, to replace the function
741 oid_getoidbyent, which is not thread safe.
743 * Added nmem_init and nmem_exit to initialize and release
744 NMEM resources. Function nmem_init should be called once in the
745 initial thread before NMEM/ODR is used. statserv.c and client.c
746 have been changed accordingly. The change was necessary to make
747 NMEM thread safe. The NMEM memory pool is shared amongst threads
748 in a process. Unix-based applications will still work fine without
751 Added NT Services interface for the the Z39.50 (statserv) Server.
752 Refer to the ztest.c source on the usage.
754 Windows 95/NT port using MSVC5.0. Project files are included in the
757 * Defined new 'global' handle for the retrieval (data1) system. The
758 new handled, data1_handle, describes the state of the data1 system.
759 This handle is passed as first argument to virtually all
760 data1 related routines. The functions data1_create and data1_destroy
761 creates and destroys a data1 handle respectively.
763 Added ODR encode stream member to all backend request structures
764 init, search, scan etc. This stream should be used to allocate all
765 memory used for the response when thread safe operation is needed.
767 Changed the comstack utility, cs_addstr, to be thread safe. The
768 returned hostname string returned by the function is now part the
771 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
772 function. The cs_straddr takes a COMSTACK handle as argument, so this
773 function must be used after cs_create and before bind/connect.
774 This function is thread safe.
776 Moved test server to 'ztest' directory - generic server code still
777 in 'server' directory.
779 Made prefix query (pquery.c) utility thread safe.
781 Added new function modifier YAZ_EXPORT to 'export' public DLL
782 functions when using windows (see include/yconfig.h).
784 Added definitions to the OID database (util/oid.c) (RVDM).
786 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
788 Added call to ccl_rpn_delete in client program.
790 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
791 release of RPN structure.
793 Added support for C++, headers uses extern "C" for public definitions.
794 With input from RVDM.
796 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
797 Thanks to Ronald van der Meer (RVDM).
799 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
801 Added support for private extensions to the OID database
802 (oid_setprivateoids()). Thanks to RVDM.
804 Added optional, physical ANY (key replication)
806 Fixed null-reference problem in GRS-1 output filter.
808 Proximity operator added to Prefix Query Format (PQF).
810 In test client command "base" accepts multiple databases.
812 Fixed bug in cs_close stack that caused trouble with WINSOCK.
816 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
818 Smallish bug-fixes in the new encoders/decoders (explain).
820 Bug fixed in DeleteRequest.
822 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
824 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
826 Added SOIF syntax (using private OID for now) to retrieval module and client.
828 Added Update extended service.
830 Added SearchResult-1 additional info structure.
832 Added optional CCL (ISO8777) interpreter as separate module. Available
835 --- 1.2 1996/6/10 (1st anniversary release)
837 Added Summary record syntax. Lightly tested.
839 Added OPAC record syntax. Untested.
841 Added ResourceReport service encoders/decoders. Untested.
843 Fixed bug in z_Unit - wrong tagging on unitSystem.
845 Fixed bug in the DiagRecs decoder.
847 Added options for max PDU size and session timeout to frontend-server.
849 Added documentation of query-language parsers and other supporting utilities.
851 [frontend-server] Added Attribute set to the bend_scanrequest API.
853 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
854 surrogate diagnostics were generated.
856 [retrieval] Allow multiple local values for attribute.
858 [retrieval] Allow multiple attributes per element in .abs files. index type.
860 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
864 Minor changes, mostly specific to Zebra's requirements (retrieval)
868 Repaired bug in frontend server when running multiple listening
869 endpoints in dynamic mode.
871 z_External() now won't break if a known, ASN.1 value comes encapsulated
872 in an octet-string. The value will pass through unmodified in an Odr_oct.
874 Added a bit of code to the demo client to decode & display
875 ASN.1-structured records represented in the octet-aligned branch of
876 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
878 Added z_ext_getentbyref() to the ASN module. Doc updated.
880 * Completed the SCAN definition in the ASN module. This may break SCAN
881 code based on older YAZ-versions at compile-time. The fix is easy -
884 * Added 'displayTerm' and OtherInformation to the TermInfo structure
885 under the SCAN definition. Remember to initialize this, server-people.
887 Comstack should now support the WAIS protocol in TCP/IP mode. Note
888 that this does not extend to ODR and ASN.
890 Comstack allows insertion of established socket (primarily for
891 inetd-operation of servers). Doc updated.
893 Front-end server can now start from the inetd in TCP mode. Doc
900 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
901 the rank and record number.
903 Adjustments to the frontend server.
905 Fixed diagnostic BER dumper. It ignored the file argument.
909 Various changes to retrieval module.
911 Changed the union discriminators of the protocol files from enums to
912 ints paired with #defines.
914 *Changed oident.class to oident.oclass to avoid a reserved word in C++
917 *Changed operator in the RPN structure to 'roperator', again to avoid a
920 Fixed problems in Explain decoders/encoders.
924 Memory bug in log module fixed.
928 Occasional malloc() of 0 bytes fixed in d1_espec.c.
930 Bug in Explain DatabaseInfo module fixed.
932 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
936 The shift to v1.0 signals that we now consider the *core* functionality
937 of YAZ reasonably stable (the core being more or less equivalent to
938 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
939 tested (Explain not at all - though that will happen soonish).
941 Minor changes to code to support Windows port.
943 Various minor changes after we're getting to use GRS-1 & co. more.
945 Added Espec-1 format.
947 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
948 of the protocol and it cannot be selected when encoding (maps into 'string'
949 when decoding). Needed to talk to some servers.
951 Demo client can request simple element set names.
953 Added Diagnostic Format encoders/decoders.
955 Added simple Close handling to frontend server (no hooks for resource
956 reporting yet), and demonstration client.
958 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
962 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
963 handled incorrectly when records were requested in the searchResponse. This
964 will only affect you if you use the frontend-server.
966 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
967 Test-client will ask for and print GRS1. Ztest will return dummy records
970 Added Explain encoders/decoders to the service-level API. Untested.
972 Added Extended Services: Item Order encoders and decoders to the Service-
973 level API. Untested. We could use a recent copy of the pertinent bits
974 of the ILL protocol to add those bits.
976 Added diagnostic format 1 encoders/decoders to the service-level API.
979 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
980 odr_cons.c, which causes a more correct output.
982 Fixed handling of searchRequest in frontend server. NextResultSetPosition
983 was always set to 0 when no records were requested in the searchRequest.
985 * Added better external-handling. This shouldn't harm old code that
986 *encodes* externals. It can break code that looks for a
987 'single-ASN1-type' representation, since those types that are known
988 are now decoded immediately. Look at the SUTRS sample code in
989 seshigh.c and client.c. Documentation updated.
991 Handling of structured records in bend_fetchresponse. Length -1 marks
992 structured record, type is deduced from format field.
995 Fairly quick maintenance release to add SUTRS support.
997 Fixed handling of SUTRS records in the demonstration client.
999 * Added format field to the bend_fetchrequest and bend_fetchresponce
1000 structures of the backend API (frontend server). When the record is
1001 returned, the value of the format field is mapped to an OID. The
1002 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1003 of the record. The special value VAL_NONE in the bend_request means
1004 that no specific format was requested by the client. Documentation
1005 updated accordingly. Test server (ztest) will return a fixed dummy
1006 SUTRS record if your client requests SUTRS.
1008 Documentation updated accordingly.
1010 You can now set external libraries and RANLIB support in the top-level
1014 First public release.