1 Possible compatibility problems with earlier versions marked with '*'.
3 SortResponse member resultCount now set to NULL in sort handler of
6 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
9 Add three new utility functions for translating OIDs between various
10 formats -- symbolic name such as "Usmarc", minus-1-terminated int
11 arrays and dotted strings such as "1.2.840.10003.9.5.1":
12 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
13 char *oid_to_dotstring(const int *oid, char *oidbuf);
14 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
16 Reverted modifications for ES Update definition for z_IU0Update
17 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
20 String value attributes for CCL parser.
24 Fix CCL directive @case handling so that it affects string match for
25 both CCL keywords and qualifiers.
27 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
28 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
29 Decoder has been updated with ASN.1 changes as listed in
30 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
31 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
32 z_IUUpdate, remains unchanged.
34 ZOOM_record_get may now return a record in a specific character set.
35 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
36 "from" is the character set of record as returned by target. "to" is
37 the character set to be returned. If omitted, "to" is UTF-8.
39 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
41 New ODR utility, odr_getelement, which returns name of element for
42 which encoding/decoding failed.
44 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
45 in cases where a required element was omitted.
47 Bug fix: some MARC8 sequences were not converted.
49 New ZOOM option "step" which specifies number of records to be
50 retrieved in one chunk. Used in conjunction with "start" and "count".
52 SRW support for yaz-client. Use scheme http: to use it, e.g.
55 yaz-client no longer does (un)intelligent character set conversions
56 by default. Can be enabled with charset and marc_charset commands.
58 xmalloc trace fix for 64-bit systems such as DEC alpha.
60 Solaris 2.6 compile fix.
62 New function, cql_strerror() translates SRW error codes, as returned
63 by cql_transform_error(), into human-readable English strings. Used
64 in yaz-client diagnostics when appropriate.
66 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
67 converts it into a type-1 query which is sent to the server. This
68 makes CQL available for use with all Z-servers, as opposed to the tiny
69 minority that can handle CQL queries themselves.
73 New Debian package layout similar to the Redhat Package layout.
75 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
76 and search result respectively.
80 Redhat package is now several packages: libyaz (runtime libraries),
81 libyaz-devel (development and documentation, and yaz (utility programs).
82 Package spec file by Morten Bøgeskov.
84 New member 'schema' in struct bend_fetch_rr which the name of requested
85 schema (SRW/SRU) for record (or NULL if none was given). The fetch
86 handler MAY set this to reflect the schema of the returned record.
88 New member 'display_term' in struct scan_entry. GFS now sets member entries
89 and allocates scan entries to be filled by user scan handler. In previous
90 version, entries member was allocated by the scan handler. That still works,
91 but the GFS will ignore member display_term - assuming it was NOT set by
92 the handler. The fact that the GFS now allocates the entries both allows
93 for new members and makes a scan handler easier to write.
95 Fix CQL lex buffer overflow.
97 SRW/SRU recordPacking. For SRW default recordPacking is string. For
98 SRU default recordPacking is string.
100 SRU protocol support for frontend server.
102 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
104 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
106 Added scan for the ZOOM shell (zoomsh).
110 * String Identifers for Schemas (Amendment 5).
111 http://lcweb.loc.gov/z3950/agency/amend/am5.html
112 Old definition for schema
113 Odr_oid *schema; /* OPT */
118 Z_InternationalString *uri;
119 #define Z_Schema_oid 1
120 #define Z_Schema_uri 2
123 * resultCount parameter to Sort Response (Amendment 1).
124 http://lcweb.loc.gov/z3950/agency/amend/am1.html
126 Support for SRW 1.0 over HTTP. This is an optional feature and
127 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
130 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
131 on the same port. SRW SearchRetrieveRequests are mapped
132 to bend_init,bend_search,bend_fetch,bend_close.
134 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
136 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
137 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
139 ZOOM connections are SRW based if schem http is used for hostname
140 in connect, e.g. z = ZOOM_connection_new("http://myserver");
141 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
143 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
144 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
145 distance=n, order=true/false, relation=le, prox unit=word. If
146 n is omitted, distance 1 is used.
148 Fixed problem with C compiler include path in wrong order.
150 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
151 on Solaris. Patch from Ko van der Sloot.
153 New MARC decode API. All new functions operate on a yaz_marc_t
154 handle. The most important new functions are: yaz_marc_create,
155 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
156 decode and destroy respectively. Decoder can produce formats
157 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
158 include/yaz/marcdisp.h.
160 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
161 to UTF-8, UCS-32, wchar_t or Latin-1.
163 * Prototypes for yaz_iconv_-functions moved to separate header
164 include/yaz/yaz-iconv.h.
166 Make a few private functions 'static' in unix.c. This prevents
167 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
169 For ZOOM connection, the options targetImplementation{Id,Name,Version}
170 are set when Init Response is received.
172 New function ZOOM_connection_error_x similar to ZOOM_connection_error
173 but returns diagnostic set as well.
175 New function yaz_strerror which is a portable wrapper for
176 strerror/strerror_r/GetLastMessage.
178 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
179 is returned for MARC. If type is "oai", then OAI MARC is returned.
181 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
186 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
188 Fix bad race conditions on SIGTERM and terminate gracefully in
191 Move retrieval (data1) module to Zebra since nobody seems to be
194 Add GRS-1 render for ZOOM using same format as yaz-client.
198 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
200 Fix broken ESpec handling in data1 module.
202 SGML reader parses comments and makes them part of the data1 tree.
204 Added several type casts so that YAZ compiles as C++ code.
206 ZOOM didn't handle PDU encoding failures properly.
208 Added more Bib-1 diagnostics (approved extensions).
210 GNU configure: better check for iconv.
212 More portable use of accept, getpeername. Check for socklen_t. Use
213 int/size_t if socklen_t is not defined.
217 PQF parser rejects bad queries - including those with extra
218 characters in them. PQF parser used to silently ignore that.
219 Cleaner API for PQF added, which allows you to get detailed
220 error information for bad queries (see yaz/pquery.h).
222 Fixed bug in ZOOM_record_get for type "database".
224 Implemented mini iconv library supporting conversions between
225 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
227 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
231 Fixed ZOOM C record cache so that preferredRecordSyntax and
232 elementSetName is used to check for already fetched records.
236 Added three members in bend_initrequest structure to facilitate
237 character set negotiation.
239 Fixed a bug in frontend server that could cause indefinite
240 loops under rare conditions.
242 Revised character set utilities (charneg.h) so that encoding
243 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
245 For PQF, directive @term <type> sets term type for Scan/Search.
246 Here <type> is general, string, numeric, null. The term type
247 is inherited - just like @attr.
249 New call odr_set_charset that sets character set conversion for
250 international-strings on a ODR stream. Prototype is:
251 int odr_set_charset(ODR o, const char *to, const char *from);
252 The InternationalString is still represented as C string in YAZ
253 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
254 won't). On the protocol level, you can use any encoding.
256 Support for UNIX sockets in ZOOM.
258 Solaris recv sometimes returns errno == ENOENT. It is treated as
259 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
261 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
262 both client and server. Code by Morten Bøgeskov.
266 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
267 that they can be used directly from Visual Basic. You must recompile
268 your windows APP if you're using ZOOM.
270 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
271 Commands "lang" and "charset" sets language and character set respectively.
272 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
273 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
275 Attributes from multiple CCL fields may be OR'ed rather than merged
276 using directive "@field or". Fields are still merged by default -
277 equivalent to "@field merge".
279 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
282 Fixed bug in zget for parameter ExtendedServicesResponse.
288 Added PQF feature: '@attr type=value' may be written as '@type=value'.
290 Client displays USR.1:SearchResult-1 (hits per term).
292 Additional Search Info for search in Generic Frontend Server.
294 Fixed CCL parsing of "field=s".
296 WIN32 installer - using the excellent NSIS software from nullsoft.
298 Fixed CCL parsing of "field = - <number>".
300 Added function yaz_marc_decode that decodes MARC for line mode
301 display or XML (similar to that used by JZKit).
303 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
304 Z39.50. But ISO/ILL was, however.
306 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
307 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
309 http://lcweb.loc.gov/z3950/agency/amend/am2.html
310 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
314 New YAZ client features: Command completion and new commands:
315 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
316 Code provided by Jacob Poulsen.
318 New call oid_trav, that visits all registered OIDs via callback.
320 Function ZOOM_record_get now returns const char pointer rather than
321 void pointer. It saves a lot of type casts.
323 For YAZ client, command "auth" now allows you to set authentication
324 in IdPass style. It is enabled when three tokens are given - order
325 is user, group and password.
327 Fix memory leaks in MARC record handling for ZOOM.
329 New option for YAZ client, -k <kilobytes> that sets
330 maximum record size. Similar to -k option for generic frontend
331 server and yaz-ztest.
333 More fixes for scan. Non-zero stepSize handled. OID's fixes.
335 Prefix query parser reports "fail" when bad attribute set is given.
337 Fix in MARC decoder. Proximity logging. Fix for attribute set
338 in scan handler for server. Patches by Shigeru Ishida.
340 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
343 Configure option --with-openssl=<dir> now works when a directory is
344 specified. Patch provided by Morten Bøgeskov.
346 New option for YAZ client, -u <auth>, that sets authentication.
348 ZOOM fix: error information was sometimes "missing", since error
349 was cleared/reset too when it shouldn't.
351 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
355 Scan for ZOOM API. New object ZOOM_scanset. New functions
356 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
357 ZOOM_scanset_destroy.
359 New ZOOM function, ZOOM_connection_last_event, that returns type
360 of last event (such as "receive data", "send data", "apdu received",
363 New ZOOM option, schema, that specifies schema for retrieval.
365 New CCL feature. Qualifiers can be aliases for one or more
366 other qualifiers (if more than one is given, OR is used).
368 ZOOM uses named result sets if target supports it.
370 Two new YAZ client commands: . (dot, which sources a script of YAZ
371 client commands), and ! (to execute shell command.). Implemented
374 Working on Debian packages.
378 YAZ client enables named result sets only if target supports it.
380 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
382 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
383 with key="host" to get same result.
385 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
386 Function Z3950_resultset_record(s) returns references to records
387 "owned" by resultset. To become owner use Z3950_record_clone.
389 Function z_ext_record handles Extended Services. Thanks to
394 CCL Parser fix: ignore token comma when dealing with and-lists.
396 Documentation updates for COMSTACK.
398 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
399 Changed prototype Z3950_records. For some functions, int parameters
400 were changed to size_t.
402 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
405 New MARC decode/display function, marc_display_exl, which properly rejects
406 non-ISO2709 records. YAZ client uses it.
410 Fix bug: local attribute set wasn't set correctly in PQF strings.
414 * Old Z39.50 codecs no longer supported.
416 Added ZOOM C binding. See http://zoom.z3950.org/
418 Renamed states for COMSTACKs to avoid confusion with events.
420 Implemented cs_look and proper cs_rcvconnect.
422 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
424 Configure detects POSIX threads on OpenBSD.
426 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
427 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
429 When error is returned from present handler, non-surrogate diagnostic
430 is returned in present response (and fetch handler is no longer called).
432 * Minor adjustments to pquery parser (PQF). Token characters may be
433 escaped by using backslash (C-style).
435 PQF parser allows string attribute values to be specified. For @attr,
436 non-numeric characters after the equal-sign are treated as strings
437 (e.g. @attr 9=title).
439 CCL trunction character may be defined (@truncation in file)
441 * function zget_ExtendedServicesRequest sets waitAction to
442 waitIfPossible (was wait).
444 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
447 CCL operator names may be set in field definition files (CCL_bibset).
448 See ccl/bib1 for an example.
450 Fixes in ASN.1 compiler for C++ compatibility.
452 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
453 and "op_or" to avoid conflict with C++.
455 Fixed problem with GNU readline detection on Redhat 7.0.
457 Added step-size for Scan backend handler.
459 Fixed bug that made the frontend server crash when no attribute
460 set was specified for scan.
462 Front-end server automatically switches to original working directory
463 when installed as an NT service. Previously -w had to be specified to
466 Added extended attributes for retrieval module (data1), so that data1
467 records carry d1_readXML/SGML attributes. d1_read also supports
468 null-data rules ( <tag/>)
470 On UNIX when POSIX threads are available, a separate library libyazthread
471 is created. Programmers should link with that library and the yaz library
472 when using threads. The reason for the split was that some applications
473 on Linux, such as Apache, doesn't work well when using shared objects that
476 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
477 (or any frontend server) in SSL mode by specifying ssl: followed by
478 address. Only tested on UNIX.
480 Added feature for CCL module. Virtual structure s=al or s=ol generates
481 and-list and or-list respectively instead of phrase search.
485 * Added prefix "yaz_" for the functions log_init.., log_file.. and
486 log_mask_str. This was done to avoid name conflicts with other libraries
487 (such as other PHP extensions).
489 Added raw OID member for preferred record syntax (request_format_raw)
490 and returned record syntax (output_format_raw) for backend fetch method.
492 Config file yaz-config now accepts options so that it returns specific
493 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
495 Shared library support for UNIX using GNU libtool.
497 * Modified backend interface. Request/Response struct's replaced by
498 one read/write C struct. For example bend_fetchrequest and
499 bend_fetchresult have been replaced by single bend_fetch_rr struct.
500 Every handler - even search has to be registered in bend_init
501 handler. This means that the YAZ library no longer refers to
502 external functions and it makes it possible to make the whole
503 thing a single DLL/SO.
505 Added Segment handler for backend server.
507 Added Zmbol/Zebra administrative functions to YAZ client.
509 Threaded frontend server on UNIX (when POSIX Threads are available).
510 Starting the server with option -T enables multi-threading.
514 Added configure option --enable-comp/disable-comp to control use
515 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
516 located in sub directory asn.
518 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
519 in ${exec_prefix}/bin along with the other programs yaz-client and
522 GNU automake used to maintain makefiles.
526 Changed retrieval module so that we can load records with no abstract
527 syntax defined. Tagpaths in these records are fully composed of string
530 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
534 On UNIX, the generated makefile now supports a proper 'make install'.
535 The prefix can be set via GNU configure to set the install location
536 (default is /usr/local).
538 * YAZ programs client and ztest were renamed to yaz-client and
539 yaz-ztest to avoid conflicts when users install YAZ in "standard"
540 locations, such as /usr/bin,/usr/local/bin,etc.
542 * YAZ Header files were moved from include to include/yaz. YAZ Header
543 files are referred to as include <yaz/log.h> rather than <log.h>.
544 The YAZ include path (-I ..) is therefore the same as before. Programmers
545 should update their #include statements or use -Ipath/include/yaz
546 instead. The main motivation for doing this change is that YAZ header files
547 can be installed in "standard" locations /usr/include,/usr/local/include
548 without introducing conflicts, since ALL YAZ header files are stored
549 in subdirectory yaz (under /usr/include for example).
551 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
552 rather than project/workspace files. We switched because project files
553 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
556 Changed name of logging function, logf, to yaz_log, to prevent name
557 clash with some math-log functions. The YAZ header log.h defines logf
558 to yaz_log (#define) so there should be no incompatibilities by this
561 Added bend_start/bend_stop handlers for server. These handler are
562 called on start/stop of server. For windows they are called whenever
563 a service is started/stopped.
565 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
566 a fairly small ASN.1 compiler written in Tcl. The compiler is located
567 in util/yc.tcl. The auto-generated C code structures are, in a few
568 cases, incompatible with the old decoders. There are differences in the
569 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
570 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
571 The preprocessor variable ASN_COMPILED is defined when the compiled
572 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
573 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
574 wish to use the old encoders/decoders you can specify --disable-yc
577 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
578 version so that it supports both new - and old version of DB Update
580 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
581 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
582 change. The name parameter can be set to 0 in which no name is specified
583 for the construction. The macros odr_implicit and odr_explicit sets name
584 parameter to zero for the construction involved. New macros
585 odr_implicit_tag and odr_explicit_tag are similar to the others,
586 except that a name parameter is added. For programmers' that don't use
587 ODR they probably only need to change the call to z_APDU and z_External.
589 Added access control facility by interfacing the TCP wrapper library.
590 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
591 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
592 name of the daemon and enables the access control as specified in
593 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
595 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
596 den Dool <H.M.vdnDool@kub.nl>.
598 Added reference ID parameter to most functions in server API - refer
599 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
601 Changed name of ccl library to libccl.a (was ccl.a).
603 Fixed bug in decoder for Explain (Category TargetInfo).
605 Added support for GNU readline in client. Thanks to Jacob Poulsen
606 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
608 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
609 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
610 IMPLEMENTATION! This change was made to the development version before
611 the ZIG decided to retract the amendment. If any users MUST be
612 compatible with the original Update definition, PLEASE CONTACT US, and
613 we will include a separate definition corresponding to the old Update
614 ES. Note that because of the change to the ASN.1 of the
615 TaskPackageRecordStructure we cannot define a single structure that
616 will support both versions.
618 * Added const modifier to buffer parameter for some ODR/BER encoding
619 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
620 completeWAIS, odr_dumpBER.
622 Fixed bug in client.c which caused a crash when a scanResponse didn't
623 contain positionOfTerm.
625 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
626 * will cause an error in a client if a non-YAZ target sends both a
627 * list of Scan entries and non-surrogate diagnostics.
629 Retrieval module enhancements. Tag sets may be typed in the reference
630 to it. From the .abs-file the "tagset" directive takes a third optional
631 integer type for the tag set referenced. From a .tag-file the "include"
632 directive takes a third optional type as well. The old "type" directive
633 in the tag set itself is still recognized but acts as the default type
636 Backend interface change. Individual Scan terms returned from bend_scan
637 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
638 in include/backend.h.
640 Retrieval module enhancements. Multiple tag sets and attribute sets may
641 be specified in abstract syntax specs. Revised the error/warning for
642 logging messages reported by the retrieval module when reading the
645 Object Identifier system (oid_..) changed. The API is backwards
646 compatible but the oid-routines now allocates new OID's when needed.
647 Raw OID's may be specified in oid_getvalbyname.
649 YAZ now uses GNU configure to generate Makefile(s).
651 * Minor changes in some of the member names of DeleteResultSetRequest and
652 DeleteResultSetResponse. See include/proto.h.
654 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
655 and added member 'languages' in TargetInfo (which was missing).
657 Changed the way attribute sets are handled in the retrieval
658 module. These are now cached, just like the abstract syntaxes
661 Changed YAZ so that it links with compiled ASN.1.
663 Added Explain-schema definitions and mapping routines. The following
664 Explain categories have been implemented: AttributeDetails,
665 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
667 Fixed minor bug in Windows version of Server Library.
669 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
671 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
673 Added EXTERNAL: UNIverse Resource Report (non-standard).
675 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
676 ENUMERATED and SET OF.
678 * Added 'const' to some of the char pointer arguments for the
679 functions, data1_read_node, data1_getelementbytagname,
680 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
683 Fixed bug in data1_insert_taggeddata - the last_child member of
684 parent wasn't initialised.
686 * Changed data1_read_record and data1_read_node so that the supplied
687 "SGML"-buffer is read-only. In particular the resulting data1 - tree
688 doesn't refer to any parts of the "SGML"-buffer.
690 Fixed bug in server library (Windows version of statserv_remove).
692 * Changed code so that it compiles as C++. The type definition
693 of Odr_fun which is a member of Odr_arm was changed. The result is,
694 that an explicit typecast is needed for the fun pointer when
695 using Odr_arm - as in:
696 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
698 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
700 Implemented the new structured date and time definition as approved
701 by the ZIG. Added schemaId element to the specificTag in Espec-1
702 (also approved at the last ZIG). Thanks to RVDM.
704 Added some Object identifiers (RVDM).
706 Changed the Update Extended Service (RVDM).
708 Added command "refid" to client which specifies referenceId for
709 the following requests.
711 Implemented extended service handling for server. See ztest.c
712 for an example as well as backend.h. New handlers are registerd
715 * Changed interface for sort in server.
717 Added new members to statserv_options_block. It allows a server
718 to read options from another source than just the command line. Thanks
719 to Charles Woodfield.
721 * Changed definition of Z_Triple in file prt-grs.h - member boolean
722 renamed to zboolean. Some C++ compilers complained about the name.
724 Minor changes to gils.abs. Added index 's' (sort) on title
725 and date/time-last-modified.
729 Fixed bug in server library regarding inetd mode (-i). This bug
730 was introduced by release 1.4.
734 Added sort facility in client and backend server interface.
736 Fixed problem with dependencies in Makefile(s).
738 Fixed bugs for encoders/decoders of extended services and
741 Implemented sub-tree feature for schemas. Sub-trees are
742 referenced in *.abs-files. See explain.abs for an example
743 of the use of this feature.
745 Modified bib1.att; local attributes for ANY didn't include
746 ANY itself (only affects use of the retrieval module).
748 Fixed bug in plain SGML reader in function data1_read_node:
749 tags with prefix "var" was incorrectly interpreted as variants.
751 Added feature "sub-schemas" to enable references to - and definitions
752 of - group of elements.
754 * Removed member parent from type data1_element (in data1.h).
756 Implemented function odr_nullval() that returns the value of
759 * Removed member num_children from data1_node (in data1.h).
761 Made NT service interface part of the server library. The
762 function statserv_main uses the NT service when required and
763 calls the statserv_start / statserv_close routines.
765 Routine zget_SearchRequest and zget_PresentRequest fills
766 resultSetName/Id member with "default" instead of "Default".
768 Fixed memory leak in server. Request queue member wasn't freed.
770 Fixed nmem_exit so that memory is freed.
774 Revised the CCL parser utility to be thread safe.
776 Added function, oid_ent_to_oid, to replace the function
777 oid_getoidbyent, which is not thread safe.
779 * Added nmem_init and nmem_exit to initialize and release
780 NMEM resources. Function nmem_init should be called once in the
781 initial thread before NMEM/ODR is used. statserv.c and client.c
782 have been changed accordingly. The change was necessary to make
783 NMEM thread safe. The NMEM memory pool is shared amongst threads
784 in a process. Unix-based applications will still work fine without
787 Added NT Services interface for the the Z39.50 (statserv) Server.
788 Refer to the ztest.c source on the usage.
790 Windows 95/NT port using MSVC5.0. Project files are included in the
793 * Defined new 'global' handle for the retrieval (data1) system. The
794 new handled, data1_handle, describes the state of the data1 system.
795 This handle is passed as first argument to virtually all
796 data1 related routines. The functions data1_create and data1_destroy
797 creates and destroys a data1 handle respectively.
799 Added ODR encode stream member to all backend request structures
800 init, search, scan etc. This stream should be used to allocate all
801 memory used for the response when thread safe operation is needed.
803 Changed the comstack utility, cs_addstr, to be thread safe. The
804 returned hostname string returned by the function is now part the
807 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
808 function. The cs_straddr takes a COMSTACK handle as argument, so this
809 function must be used after cs_create and before bind/connect.
810 This function is thread safe.
812 Moved test server to 'ztest' directory - generic server code still
813 in 'server' directory.
815 Made prefix query (pquery.c) utility thread safe.
817 Added new function modifier YAZ_EXPORT to 'export' public DLL
818 functions when using windows (see include/yconfig.h).
820 Added definitions to the OID database (util/oid.c) (RVDM).
822 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
824 Added call to ccl_rpn_delete in client program.
826 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
827 release of RPN structure.
829 Added support for C++, headers uses extern "C" for public definitions.
830 With input from RVDM.
832 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
833 Thanks to Ronald van der Meer (RVDM).
835 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
837 Added support for private extensions to the OID database
838 (oid_setprivateoids()). Thanks to RVDM.
840 Added optional, physical ANY (key replication)
842 Fixed null-reference problem in GRS-1 output filter.
844 Proximity operator added to Prefix Query Format (PQF).
846 In test client command "base" accepts multiple databases.
848 Fixed bug in cs_close stack that caused trouble with WINSOCK.
852 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
854 Smallish bug-fixes in the new encoders/decoders (explain).
856 Bug fixed in DeleteRequest.
858 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
860 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
862 Added SOIF syntax (using private OID for now) to retrieval module and client.
864 Added Update extended service.
866 Added SearchResult-1 additional info structure.
868 Added optional CCL (ISO8777) interpreter as separate module. Available
871 --- 1.2 1996/6/10 (1st anniversary release)
873 Added Summary record syntax. Lightly tested.
875 Added OPAC record syntax. Untested.
877 Added ResourceReport service encoders/decoders. Untested.
879 Fixed bug in z_Unit - wrong tagging on unitSystem.
881 Fixed bug in the DiagRecs decoder.
883 Added options for max PDU size and session timeout to frontend-server.
885 Added documentation of query-language parsers and other supporting utilities.
887 [frontend-server] Added Attribute set to the bend_scanrequest API.
889 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
890 surrogate diagnostics were generated.
892 [retrieval] Allow multiple local values for attribute.
894 [retrieval] Allow multiple attributes per element in .abs files. index type.
896 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
900 Minor changes, mostly specific to Zebra's requirements (retrieval)
904 Repaired bug in frontend server when running multiple listening
905 endpoints in dynamic mode.
907 z_External() now won't break if a known, ASN.1 value comes encapsulated
908 in an octet-string. The value will pass through unmodified in an Odr_oct.
910 Added a bit of code to the demo client to decode & display
911 ASN.1-structured records represented in the octet-aligned branch of
912 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
914 Added z_ext_getentbyref() to the ASN module. Doc updated.
916 * Completed the SCAN definition in the ASN module. This may break SCAN
917 code based on older YAZ-versions at compile-time. The fix is easy -
920 * Added 'displayTerm' and OtherInformation to the TermInfo structure
921 under the SCAN definition. Remember to initialize this, server-people.
923 Comstack should now support the WAIS protocol in TCP/IP mode. Note
924 that this does not extend to ODR and ASN.
926 Comstack allows insertion of established socket (primarily for
927 inetd-operation of servers). Doc updated.
929 Front-end server can now start from the inetd in TCP mode. Doc
936 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
937 the rank and record number.
939 Adjustments to the frontend server.
941 Fixed diagnostic BER dumper. It ignored the file argument.
945 Various changes to retrieval module.
947 Changed the union discriminators of the protocol files from enums to
948 ints paired with #defines.
950 *Changed oident.class to oident.oclass to avoid a reserved word in C++
953 *Changed operator in the RPN structure to 'roperator', again to avoid a
956 Fixed problems in Explain decoders/encoders.
960 Memory bug in log module fixed.
964 Occasional malloc() of 0 bytes fixed in d1_espec.c.
966 Bug in Explain DatabaseInfo module fixed.
968 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
972 The shift to v1.0 signals that we now consider the *core* functionality
973 of YAZ reasonably stable (the core being more or less equivalent to
974 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
975 tested (Explain not at all - though that will happen soonish).
977 Minor changes to code to support Windows port.
979 Various minor changes after we're getting to use GRS-1 & co. more.
981 Added Espec-1 format.
983 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
984 of the protocol and it cannot be selected when encoding (maps into 'string'
985 when decoding). Needed to talk to some servers.
987 Demo client can request simple element set names.
989 Added Diagnostic Format encoders/decoders.
991 Added simple Close handling to frontend server (no hooks for resource
992 reporting yet), and demonstration client.
994 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
998 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
999 handled incorrectly when records were requested in the searchResponse. This
1000 will only affect you if you use the frontend-server.
1002 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1003 Test-client will ask for and print GRS1. Ztest will return dummy records
1006 Added Explain encoders/decoders to the service-level API. Untested.
1008 Added Extended Services: Item Order encoders and decoders to the Service-
1009 level API. Untested. We could use a recent copy of the pertinent bits
1010 of the ILL protocol to add those bits.
1012 Added diagnostic format 1 encoders/decoders to the service-level API.
1015 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1016 odr_cons.c, which causes a more correct output.
1018 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1019 was always set to 0 when no records were requested in the searchRequest.
1021 * Added better external-handling. This shouldn't harm old code that
1022 *encodes* externals. It can break code that looks for a
1023 'single-ASN1-type' representation, since those types that are known
1024 are now decoded immediately. Look at the SUTRS sample code in
1025 seshigh.c and client.c. Documentation updated.
1027 Handling of structured records in bend_fetchresponse. Length -1 marks
1028 structured record, type is deduced from format field.
1030 --- 1.0b2 1995/06/27
1031 Fairly quick maintenance release to add SUTRS support.
1033 Fixed handling of SUTRS records in the demonstration client.
1035 * Added format field to the bend_fetchrequest and bend_fetchresponce
1036 structures of the backend API (frontend server). When the record is
1037 returned, the value of the format field is mapped to an OID. The
1038 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1039 of the record. The special value VAL_NONE in the bend_request means
1040 that no specific format was requested by the client. Documentation
1041 updated accordingly. Test server (ztest) will return a fixed dummy
1042 SUTRS record if your client requests SUTRS.
1044 Documentation updated accordingly.
1046 You can now set external libraries and RANLIB support in the top-level
1050 First public release.