1 Possible compatibility problems with earlier versions marked with '*'.
3 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
4 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
5 Decoder has been updated with ASN.1 changes as listed in
6 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
7 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
8 z_IUUpdate, remains unchanged.
10 ZOOM_record_get may now return a record in a specific character set.
11 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
12 "from" is the character set of record as returned by target. "to" is
13 the character set to be returned. If omitted, "to" is UTF-8.
15 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
17 New ODR utility, odr_getelement, which returns name of element for
18 which encoding/decoding failed.
20 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
21 in cases where a required element was omitted.
23 Bug fix: some MARC8 sequences were not converted.
25 New ZOOM option "step" which specifies number of records to be
26 retrieved in one chunk. Used in conjunction with "start" and "count".
28 SRW support for yaz-client. Use scheme http: to use it, e.g.
31 yaz-client no longer does (un)intelligent character set conversions
32 by default. Can be enabled with charset and marc_charset commands.
34 xmalloc trace fix for 64-bit systems such as DEC alpha.
36 Solaris 2.6 compile fix.
38 New function, cql_strerror() translates SRW error codes, as returned
39 by cql_transform_error(), into human-readable English strings. Used
40 in yaz-client diagnostics when appropriate.
42 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
43 converts it into a type-1 query which is sent to the server. This
44 makes CQL available for use with all Z-servers, as opposed to the tiny
45 minority that can handle CQL queries themselves.
49 New Debian package layout similar to the Redhat Package layout.
51 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
52 and search result respectively.
56 Redhat package is now several packages: libyaz (runtime libraries),
57 libyaz-devel (development and documentation, and yaz (utility programs).
58 Package spec file by Morten Bøgeskov.
60 New member 'schema' in struct bend_fetch_rr which the name of requested
61 schema (SRW/SRU) for record (or NULL if none was given). The fetch
62 handler MAY set this to reflect the schema of the returned record.
64 New member 'display_term' in struct scan_entry. GFS now sets member entries
65 and allocates scan entries to be filled by user scan handler. In previous
66 version, entries member was allocated by the scan handler. That still works,
67 but the GFS will ignore member display_term - assuming it was NOT set by
68 the handler. The fact that the GFS now allocates the entries both allows
69 for new members and makes a scan handler easier to write.
71 Fix CQL lex buffer overflow.
73 SRW/SRU recordPacking. For SRW default recordPacking is string. For
74 SRU default recordPacking is string.
76 SRU protocol support for frontend server.
78 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
80 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
82 Added scan for the ZOOM shell (zoomsh).
86 * String Identifers for Schemas (Amendment 5).
87 http://lcweb.loc.gov/z3950/agency/amend/am5.html
88 Old definition for schema
89 Odr_oid *schema; /* OPT */
94 Z_InternationalString *uri;
95 #define Z_Schema_oid 1
96 #define Z_Schema_uri 2
99 * resultCount parameter to Sort Response (Amendment 1).
100 http://lcweb.loc.gov/z3950/agency/amend/am1.html
102 Support for SRW 1.0 over HTTP. This is an optional feature and
103 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
106 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
107 on the same port. SRW SearchRetrieveRequests are mapped
108 to bend_init,bend_search,bend_fetch,bend_close.
110 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
112 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
113 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
115 ZOOM connections are SRW based if schem http is used for hostname
116 in connect, e.g. z = ZOOM_connection_new("http://myserver");
117 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
119 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
120 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
121 distance=n, order=true/false, relation=le, prox unit=word. If
122 n is omitted, distance 1 is used.
124 Fixed problem with C compiler include path in wrong order.
126 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
127 on Solaris. Patch from Ko van der Sloot.
129 New MARC decode API. All new functions operate on a yaz_marc_t
130 handle. The most important new functions are: yaz_marc_create,
131 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
132 decode and destroy respectively. Decoder can produce formats
133 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
134 include/yaz/marcdisp.h.
136 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
137 to UTF-8, UCS-32, wchar_t or Latin-1.
139 * Prototypes for yaz_iconv_-functions moved to separate header
140 include/yaz/yaz-iconv.h.
142 Make a few private functions 'static' in unix.c. This prevents
143 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
145 For ZOOM connection, the options targetImplementation{Id,Name,Version}
146 are set when Init Response is received.
148 New function ZOOM_connection_error_x similar to ZOOM_connection_error
149 but returns diagnostic set as well.
151 New function yaz_strerror which is a portable wrapper for
152 strerror/strerror_r/GetLastMessage.
154 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
155 is returned for MARC. If type is "oai", then OAI MARC is returned.
157 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
162 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
164 Fix bad race conditions on SIGTERM and terminate gracefully in
167 Move retrieval (data1) module to Zebra since nobody seems to be
170 Add GRS-1 render for ZOOM using same format as yaz-client.
174 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
176 Fix broken ESpec handling in data1 module.
178 SGML reader parses comments and makes them part of the data1 tree.
180 Added several type casts so that YAZ compiles as C++ code.
182 ZOOM didn't handle PDU encoding failures properly.
184 Added more Bib-1 diagnostics (approved extensions).
186 GNU configure: better check for iconv.
188 More portable use of accept, getpeername. Check for socklen_t. Use
189 int/size_t if socklen_t is not defined.
193 PQF parser rejects bad queries - including those with extra
194 characters in them. PQF parser used to silently ignore that.
195 Cleaner API for PQF added, which allows you to get detailed
196 error information for bad queries (see yaz/pquery.h).
198 Fixed bug in ZOOM_record_get for type "database".
200 Implemented mini iconv library supporting conversions between
201 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
203 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
207 Fixed ZOOM C record cache so that preferredRecordSyntax and
208 elementSetName is used to check for already fetched records.
212 Added three members in bend_initrequest structure to facilitate
213 character set negotiation.
215 Fixed a bug in frontend server that could cause indefinite
216 loops under rare conditions.
218 Revised character set utilities (charneg.h) so that encoding
219 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
221 For PQF, directive @term <type> sets term type for Scan/Search.
222 Here <type> is general, string, numeric, null. The term type
223 is inherited - just like @attr.
225 New call odr_set_charset that sets character set conversion for
226 international-strings on a ODR stream. Prototype is:
227 int odr_set_charset(ODR o, const char *to, const char *from);
228 The InternationalString is still represented as C string in YAZ
229 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
230 won't). On the protocol level, you can use any encoding.
232 Support for UNIX sockets in ZOOM.
234 Solaris recv sometimes returns errno == ENOENT. It is treated as
235 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
237 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
238 both client and server. Code by Morten Bøgeskov.
242 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
243 that they can be used directly from Visual Basic. You must recompile
244 your windows APP if you're using ZOOM.
246 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
247 Commands "lang" and "charset" sets language and character set respectively.
248 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
249 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
251 Attributes from multiple CCL fields may be OR'ed rather than merged
252 using directive "@field or". Fields are still merged by default -
253 equivalent to "@field merge".
255 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
258 Fixed bug in zget for parameter ExtendedServicesResponse.
264 Added PQF feature: '@attr type=value' may be written as '@type=value'.
266 Client displays USR.1:SearchResult-1 (hits per term).
268 Additional Search Info for search in Generic Frontend Server.
270 Fixed CCL parsing of "field=s".
272 WIN32 installer - using the excellent NSIS software from nullsoft.
274 Fixed CCL parsing of "field = - <number>".
276 Added function yaz_marc_decode that decodes MARC for line mode
277 display or XML (similar to that used by JZKit).
279 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
280 Z39.50. But ISO/ILL was, however.
282 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
283 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
285 http://lcweb.loc.gov/z3950/agency/amend/am2.html
286 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
290 New YAZ client features: Command completion and new commands:
291 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
292 Code provided by Jacob Poulsen.
294 New call oid_trav, that visits all registered OIDs via callback.
296 Function ZOOM_record_get now returns const char pointer rather than
297 void pointer. It saves a lot of type casts.
299 For YAZ client, command "auth" now allows you to set authentication
300 in IdPass style. It is enabled when three tokens are given - order
301 is user, group and password.
303 Fix memory leaks in MARC record handling for ZOOM.
305 New option for YAZ client, -k <kilobytes> that sets
306 maximum record size. Similar to -k option for generic frontend
307 server and yaz-ztest.
309 More fixes for scan. Non-zero stepSize handled. OID's fixes.
311 Prefix query parser reports "fail" when bad attribute set is given.
313 Fix in MARC decoder. Proximity logging. Fix for attribute set
314 in scan handler for server. Patches by Shigeru Ishida.
316 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
319 Configure option --with-openssl=<dir> now works when a directory is
320 specified. Patch provided by Morten Bøgeskov.
322 New option for YAZ client, -u <auth>, that sets authentication.
324 ZOOM fix: error information was sometimes "missing", since error
325 was cleared/reset too when it shouldn't.
327 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
331 Scan for ZOOM API. New object ZOOM_scanset. New functions
332 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
333 ZOOM_scanset_destroy.
335 New ZOOM function, ZOOM_connection_last_event, that returns type
336 of last event (such as "receive data", "send data", "apdu received",
339 New ZOOM option, schema, that specifies schema for retrieval.
341 New CCL feature. Qualifiers can be aliases for one or more
342 other qualifiers (if more than one is given, OR is used).
344 ZOOM uses named result sets if target supports it.
346 Two new YAZ client commands: . (dot, which sources a script of YAZ
347 client commands), and ! (to execute shell command.). Implemented
350 Working on Debian packages.
354 YAZ client enables named result sets only if target supports it.
356 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
358 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
359 with key="host" to get same result.
361 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
362 Function Z3950_resultset_record(s) returns references to records
363 "owned" by resultset. To become owner use Z3950_record_clone.
365 Function z_ext_record handles Extended Services. Thanks to
370 CCL Parser fix: ignore token comma when dealing with and-lists.
372 Documentation updates for COMSTACK.
374 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
375 Changed prototype Z3950_records. For some functions, int parameters
376 were changed to size_t.
378 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
381 New MARC decode/display function, marc_display_exl, which properly rejects
382 non-ISO2709 records. YAZ client uses it.
386 Fix bug: local attribute set wasn't set correctly in PQF strings.
390 * Old Z39.50 codecs no longer supported.
392 Added ZOOM C binding. See http://zoom.z3950.org/
394 Renamed states for COMSTACKs to avoid confusion with events.
396 Implemented cs_look and proper cs_rcvconnect.
398 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
400 Configure detects POSIX threads on OpenBSD.
402 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
403 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
405 When error is returned from present handler, non-surrogate diagnostic
406 is returned in present response (and fetch handler is no longer called).
408 * Minor adjustments to pquery parser (PQF). Token characters may be
409 escaped by using backslash (C-style).
411 PQF parser allows string attribute values to be specified. For @attr,
412 non-numeric characters after the equal-sign are treated as strings
413 (e.g. @attr 9=title).
415 CCL trunction character may be defined (@truncation in file)
417 * function zget_ExtendedServicesRequest sets waitAction to
418 waitIfPossible (was wait).
420 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
423 CCL operator names may be set in field definition files (CCL_bibset).
424 See ccl/bib1 for an example.
426 Fixes in ASN.1 compiler for C++ compatibility.
428 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
429 and "op_or" to avoid conflict with C++.
431 Fixed problem with GNU readline detection on Redhat 7.0.
433 Added step-size for Scan backend handler.
435 Fixed bug that made the frontend server crash when no attribute
436 set was specified for scan.
438 Front-end server automatically switches to original working directory
439 when installed as an NT service. Previously -w had to be specified to
442 Added extended attributes for retrieval module (data1), so that data1
443 records carry d1_readXML/SGML attributes. d1_read also supports
444 null-data rules ( <tag/>)
446 On UNIX when POSIX threads are available, a separate library libyazthread
447 is created. Programmers should link with that library and the yaz library
448 when using threads. The reason for the split was that some applications
449 on Linux, such as Apache, doesn't work well when using shared objects that
452 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
453 (or any frontend server) in SSL mode by specifying ssl: followed by
454 address. Only tested on UNIX.
456 Added feature for CCL module. Virtual structure s=al or s=ol generates
457 and-list and or-list respectively instead of phrase search.
461 * Added prefix "yaz_" for the functions log_init.., log_file.. and
462 log_mask_str. This was done to avoid name conflicts with other libraries
463 (such as other PHP extensions).
465 Added raw OID member for preferred record syntax (request_format_raw)
466 and returned record syntax (output_format_raw) for backend fetch method.
468 Config file yaz-config now accepts options so that it returns specific
469 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
471 Shared library support for UNIX using GNU libtool.
473 * Modified backend interface. Request/Response struct's replaced by
474 one read/write C struct. For example bend_fetchrequest and
475 bend_fetchresult have been replaced by single bend_fetch_rr struct.
476 Every handler - even search has to be registered in bend_init
477 handler. This means that the YAZ library no longer refers to
478 external functions and it makes it possible to make the whole
479 thing a single DLL/SO.
481 Added Segment handler for backend server.
483 Added Zmbol/Zebra administrative functions to YAZ client.
485 Threaded frontend server on UNIX (when POSIX Threads are available).
486 Starting the server with option -T enables multi-threading.
490 Added configure option --enable-comp/disable-comp to control use
491 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
492 located in sub directory asn.
494 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
495 in ${exec_prefix}/bin along with the other programs yaz-client and
498 GNU automake used to maintain makefiles.
502 Changed retrieval module so that we can load records with no abstract
503 syntax defined. Tagpaths in these records are fully composed of string
506 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
510 On UNIX, the generated makefile now supports a proper 'make install'.
511 The prefix can be set via GNU configure to set the install location
512 (default is /usr/local).
514 * YAZ programs client and ztest were renamed to yaz-client and
515 yaz-ztest to avoid conflicts when users install YAZ in "standard"
516 locations, such as /usr/bin,/usr/local/bin,etc.
518 * YAZ Header files were moved from include to include/yaz. YAZ Header
519 files are referred to as include <yaz/log.h> rather than <log.h>.
520 The YAZ include path (-I ..) is therefore the same as before. Programmers
521 should update their #include statements or use -Ipath/include/yaz
522 instead. The main motivation for doing this change is that YAZ header files
523 can be installed in "standard" locations /usr/include,/usr/local/include
524 without introducing conflicts, since ALL YAZ header files are stored
525 in subdirectory yaz (under /usr/include for example).
527 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
528 rather than project/workspace files. We switched because project files
529 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
532 Changed name of logging function, logf, to yaz_log, to prevent name
533 clash with some math-log functions. The YAZ header log.h defines logf
534 to yaz_log (#define) so there should be no incompatibilities by this
537 Added bend_start/bend_stop handlers for server. These handler are
538 called on start/stop of server. For windows they are called whenever
539 a service is started/stopped.
541 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
542 a fairly small ASN.1 compiler written in Tcl. The compiler is located
543 in util/yc.tcl. The auto-generated C code structures are, in a few
544 cases, incompatible with the old decoders. There are differences in the
545 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
546 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
547 The preprocessor variable ASN_COMPILED is defined when the compiled
548 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
549 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
550 wish to use the old encoders/decoders you can specify --disable-yc
553 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
554 version so that it supports both new - and old version of DB Update
556 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
557 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
558 change. The name parameter can be set to 0 in which no name is specified
559 for the construction. The macros odr_implicit and odr_explicit sets name
560 parameter to zero for the construction involved. New macros
561 odr_implicit_tag and odr_explicit_tag are similar to the others,
562 except that a name parameter is added. For programmers' that don't use
563 ODR they probably only need to change the call to z_APDU and z_External.
565 Added access control facility by interfacing the TCP wrapper library.
566 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
567 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
568 name of the daemon and enables the access control as specified in
569 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
571 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
572 den Dool <H.M.vdnDool@kub.nl>.
574 Added reference ID parameter to most functions in server API - refer
575 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
577 Changed name of ccl library to libccl.a (was ccl.a).
579 Fixed bug in decoder for Explain (Category TargetInfo).
581 Added support for GNU readline in client. Thanks to Jacob Poulsen
582 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
584 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
585 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
586 IMPLEMENTATION! This change was made to the development version before
587 the ZIG decided to retract the amendment. If any users MUST be
588 compatible with the original Update definition, PLEASE CONTACT US, and
589 we will include a separate definition corresponding to the old Update
590 ES. Note that because of the change to the ASN.1 of the
591 TaskPackageRecordStructure we cannot define a single structure that
592 will support both versions.
594 * Added const modifier to buffer parameter for some ODR/BER encoding
595 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
596 completeWAIS, odr_dumpBER.
598 Fixed bug in client.c which caused a crash when a scanResponse didn't
599 contain positionOfTerm.
601 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
602 * will cause an error in a client if a non-YAZ target sends both a
603 * list of Scan entries and non-surrogate diagnostics.
605 Retrieval module enhancements. Tag sets may be typed in the reference
606 to it. From the .abs-file the "tagset" directive takes a third optional
607 integer type for the tag set referenced. From a .tag-file the "include"
608 directive takes a third optional type as well. The old "type" directive
609 in the tag set itself is still recognized but acts as the default type
612 Backend interface change. Individual Scan terms returned from bend_scan
613 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
614 in include/backend.h.
616 Retrieval module enhancements. Multiple tag sets and attribute sets may
617 be specified in abstract syntax specs. Revised the error/warning for
618 logging messages reported by the retrieval module when reading the
621 Object Identifier system (oid_..) changed. The API is backwards
622 compatible but the oid-routines now allocates new OID's when needed.
623 Raw OID's may be specified in oid_getvalbyname.
625 YAZ now uses GNU configure to generate Makefile(s).
627 * Minor changes in some of the member names of DeleteResultSetRequest and
628 DeleteResultSetResponse. See include/proto.h.
630 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
631 and added member 'languages' in TargetInfo (which was missing).
633 Changed the way attribute sets are handled in the retrieval
634 module. These are now cached, just like the abstract syntaxes
637 Changed YAZ so that it links with compiled ASN.1.
639 Added Explain-schema definitions and mapping routines. The following
640 Explain categories have been implemented: AttributeDetails,
641 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
643 Fixed minor bug in Windows version of Server Library.
645 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
647 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
649 Added EXTERNAL: UNIverse Resource Report (non-standard).
651 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
652 ENUMERATED and SET OF.
654 * Added 'const' to some of the char pointer arguments for the
655 functions, data1_read_node, data1_getelementbytagname,
656 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
659 Fixed bug in data1_insert_taggeddata - the last_child member of
660 parent wasn't initialised.
662 * Changed data1_read_record and data1_read_node so that the supplied
663 "SGML"-buffer is read-only. In particular the resulting data1 - tree
664 doesn't refer to any parts of the "SGML"-buffer.
666 Fixed bug in server library (Windows version of statserv_remove).
668 * Changed code so that it compiles as C++. The type definition
669 of Odr_fun which is a member of Odr_arm was changed. The result is,
670 that an explicit typecast is needed for the fun pointer when
671 using Odr_arm - as in:
672 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
674 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
676 Implemented the new structured date and time definition as approved
677 by the ZIG. Added schemaId element to the specificTag in Espec-1
678 (also approved at the last ZIG). Thanks to RVDM.
680 Added some Object identifiers (RVDM).
682 Changed the Update Extended Service (RVDM).
684 Added command "refid" to client which specifies referenceId for
685 the following requests.
687 Implemented extended service handling for server. See ztest.c
688 for an example as well as backend.h. New handlers are registerd
691 * Changed interface for sort in server.
693 Added new members to statserv_options_block. It allows a server
694 to read options from another source than just the command line. Thanks
695 to Charles Woodfield.
697 * Changed definition of Z_Triple in file prt-grs.h - member boolean
698 renamed to zboolean. Some C++ compilers complained about the name.
700 Minor changes to gils.abs. Added index 's' (sort) on title
701 and date/time-last-modified.
705 Fixed bug in server library regarding inetd mode (-i). This bug
706 was introduced by release 1.4.
710 Added sort facility in client and backend server interface.
712 Fixed problem with dependencies in Makefile(s).
714 Fixed bugs for encoders/decoders of extended services and
717 Implemented sub-tree feature for schemas. Sub-trees are
718 referenced in *.abs-files. See explain.abs for an example
719 of the use of this feature.
721 Modified bib1.att; local attributes for ANY didn't include
722 ANY itself (only affects use of the retrieval module).
724 Fixed bug in plain SGML reader in function data1_read_node:
725 tags with prefix "var" was incorrectly interpreted as variants.
727 Added feature "sub-schemas" to enable references to - and definitions
728 of - group of elements.
730 * Removed member parent from type data1_element (in data1.h).
732 Implemented function odr_nullval() that returns the value of
735 * Removed member num_children from data1_node (in data1.h).
737 Made NT service interface part of the server library. The
738 function statserv_main uses the NT service when required and
739 calls the statserv_start / statserv_close routines.
741 Routine zget_SearchRequest and zget_PresentRequest fills
742 resultSetName/Id member with "default" instead of "Default".
744 Fixed memory leak in server. Request queue member wasn't freed.
746 Fixed nmem_exit so that memory is freed.
750 Revised the CCL parser utility to be thread safe.
752 Added function, oid_ent_to_oid, to replace the function
753 oid_getoidbyent, which is not thread safe.
755 * Added nmem_init and nmem_exit to initialize and release
756 NMEM resources. Function nmem_init should be called once in the
757 initial thread before NMEM/ODR is used. statserv.c and client.c
758 have been changed accordingly. The change was necessary to make
759 NMEM thread safe. The NMEM memory pool is shared amongst threads
760 in a process. Unix-based applications will still work fine without
763 Added NT Services interface for the the Z39.50 (statserv) Server.
764 Refer to the ztest.c source on the usage.
766 Windows 95/NT port using MSVC5.0. Project files are included in the
769 * Defined new 'global' handle for the retrieval (data1) system. The
770 new handled, data1_handle, describes the state of the data1 system.
771 This handle is passed as first argument to virtually all
772 data1 related routines. The functions data1_create and data1_destroy
773 creates and destroys a data1 handle respectively.
775 Added ODR encode stream member to all backend request structures
776 init, search, scan etc. This stream should be used to allocate all
777 memory used for the response when thread safe operation is needed.
779 Changed the comstack utility, cs_addstr, to be thread safe. The
780 returned hostname string returned by the function is now part the
783 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
784 function. The cs_straddr takes a COMSTACK handle as argument, so this
785 function must be used after cs_create and before bind/connect.
786 This function is thread safe.
788 Moved test server to 'ztest' directory - generic server code still
789 in 'server' directory.
791 Made prefix query (pquery.c) utility thread safe.
793 Added new function modifier YAZ_EXPORT to 'export' public DLL
794 functions when using windows (see include/yconfig.h).
796 Added definitions to the OID database (util/oid.c) (RVDM).
798 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
800 Added call to ccl_rpn_delete in client program.
802 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
803 release of RPN structure.
805 Added support for C++, headers uses extern "C" for public definitions.
806 With input from RVDM.
808 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
809 Thanks to Ronald van der Meer (RVDM).
811 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
813 Added support for private extensions to the OID database
814 (oid_setprivateoids()). Thanks to RVDM.
816 Added optional, physical ANY (key replication)
818 Fixed null-reference problem in GRS-1 output filter.
820 Proximity operator added to Prefix Query Format (PQF).
822 In test client command "base" accepts multiple databases.
824 Fixed bug in cs_close stack that caused trouble with WINSOCK.
828 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
830 Smallish bug-fixes in the new encoders/decoders (explain).
832 Bug fixed in DeleteRequest.
834 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
836 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
838 Added SOIF syntax (using private OID for now) to retrieval module and client.
840 Added Update extended service.
842 Added SearchResult-1 additional info structure.
844 Added optional CCL (ISO8777) interpreter as separate module. Available
847 --- 1.2 1996/6/10 (1st anniversary release)
849 Added Summary record syntax. Lightly tested.
851 Added OPAC record syntax. Untested.
853 Added ResourceReport service encoders/decoders. Untested.
855 Fixed bug in z_Unit - wrong tagging on unitSystem.
857 Fixed bug in the DiagRecs decoder.
859 Added options for max PDU size and session timeout to frontend-server.
861 Added documentation of query-language parsers and other supporting utilities.
863 [frontend-server] Added Attribute set to the bend_scanrequest API.
865 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
866 surrogate diagnostics were generated.
868 [retrieval] Allow multiple local values for attribute.
870 [retrieval] Allow multiple attributes per element in .abs files. index type.
872 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
876 Minor changes, mostly specific to Zebra's requirements (retrieval)
880 Repaired bug in frontend server when running multiple listening
881 endpoints in dynamic mode.
883 z_External() now won't break if a known, ASN.1 value comes encapsulated
884 in an octet-string. The value will pass through unmodified in an Odr_oct.
886 Added a bit of code to the demo client to decode & display
887 ASN.1-structured records represented in the octet-aligned branch of
888 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
890 Added z_ext_getentbyref() to the ASN module. Doc updated.
892 * Completed the SCAN definition in the ASN module. This may break SCAN
893 code based on older YAZ-versions at compile-time. The fix is easy -
896 * Added 'displayTerm' and OtherInformation to the TermInfo structure
897 under the SCAN definition. Remember to initialize this, server-people.
899 Comstack should now support the WAIS protocol in TCP/IP mode. Note
900 that this does not extend to ODR and ASN.
902 Comstack allows insertion of established socket (primarily for
903 inetd-operation of servers). Doc updated.
905 Front-end server can now start from the inetd in TCP mode. Doc
912 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
913 the rank and record number.
915 Adjustments to the frontend server.
917 Fixed diagnostic BER dumper. It ignored the file argument.
921 Various changes to retrieval module.
923 Changed the union discriminators of the protocol files from enums to
924 ints paired with #defines.
926 *Changed oident.class to oident.oclass to avoid a reserved word in C++
929 *Changed operator in the RPN structure to 'roperator', again to avoid a
932 Fixed problems in Explain decoders/encoders.
936 Memory bug in log module fixed.
940 Occasional malloc() of 0 bytes fixed in d1_espec.c.
942 Bug in Explain DatabaseInfo module fixed.
944 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
948 The shift to v1.0 signals that we now consider the *core* functionality
949 of YAZ reasonably stable (the core being more or less equivalent to
950 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
951 tested (Explain not at all - though that will happen soonish).
953 Minor changes to code to support Windows port.
955 Various minor changes after we're getting to use GRS-1 & co. more.
957 Added Espec-1 format.
959 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
960 of the protocol and it cannot be selected when encoding (maps into 'string'
961 when decoding). Needed to talk to some servers.
963 Demo client can request simple element set names.
965 Added Diagnostic Format encoders/decoders.
967 Added simple Close handling to frontend server (no hooks for resource
968 reporting yet), and demonstration client.
970 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
974 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
975 handled incorrectly when records were requested in the searchResponse. This
976 will only affect you if you use the frontend-server.
978 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
979 Test-client will ask for and print GRS1. Ztest will return dummy records
982 Added Explain encoders/decoders to the service-level API. Untested.
984 Added Extended Services: Item Order encoders and decoders to the Service-
985 level API. Untested. We could use a recent copy of the pertinent bits
986 of the ILL protocol to add those bits.
988 Added diagnostic format 1 encoders/decoders to the service-level API.
991 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
992 odr_cons.c, which causes a more correct output.
994 Fixed handling of searchRequest in frontend server. NextResultSetPosition
995 was always set to 0 when no records were requested in the searchRequest.
997 * Added better external-handling. This shouldn't harm old code that
998 *encodes* externals. It can break code that looks for a
999 'single-ASN1-type' representation, since those types that are known
1000 are now decoded immediately. Look at the SUTRS sample code in
1001 seshigh.c and client.c. Documentation updated.
1003 Handling of structured records in bend_fetchresponse. Length -1 marks
1004 structured record, type is deduced from format field.
1006 --- 1.0b2 1995/06/27
1007 Fairly quick maintenance release to add SUTRS support.
1009 Fixed handling of SUTRS records in the demonstration client.
1011 * Added format field to the bend_fetchrequest and bend_fetchresponce
1012 structures of the backend API (frontend server). When the record is
1013 returned, the value of the format field is mapped to an OID. The
1014 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1015 of the record. The special value VAL_NONE in the bend_request means
1016 that no specific format was requested by the client. Documentation
1017 updated accordingly. Test server (ztest) will return a fixed dummy
1018 SUTRS record if your client requests SUTRS.
1020 Documentation updated accordingly.
1022 You can now set external libraries and RANLIB support in the top-level
1026 First public release.