1 Possible compatibility problems with earlier versions marked with '*'.
5 Major restructure of YAZ source. All source in libyaz is in src directory.
6 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
7 util (utility programs such as ASN.1 compiler, yaz-marcdump).
9 Added man page for utility yaz-marcdump (used to be called marcdump).
10 yaz-marcdump is installed by 'make install'.
12 Fixed a memory leak in Generic Frontend Server that occurred when decoding
13 of incoming package failed.
15 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
17 Change prototype of odr_perror: add const to message string.
19 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
21 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
22 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
23 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
24 DNS lookup. There should not be any compatibility problems with this
25 assuming that blocking=1 or 0 is used.
27 Fix bad reference in UNIX comstack in function cs_addrstr.
29 Fix for compilation on AIX.
31 The generic front-end server (server/seshigh.c) now supports returning
32 Init diagnostics to the client in User-information-field, in
33 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
38 Allow any CQL relation (not just all,any,exact,scr).
40 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
41 that features the same UI.
43 Implemented command update0 in YAZ client which is equivalent to
44 update but uses old of Ext Update ASN.1.
46 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
47 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
48 Previously no OID was used for this info.
50 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
51 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
52 returns 'malformed search term' otherwise.
54 SortResponse member resultCount now set to NULL in sort handler of
57 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
60 Add three new utility functions for translating OIDs between various
61 formats -- symbolic name such as "Usmarc", minus-1-terminated int
62 arrays and dotted strings such as "1.2.840.10003.9.5.1":
63 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
64 char *oid_to_dotstring(const int *oid, char *oidbuf);
65 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
67 Reverted modifications for ES Update definition for z_IU0Update
68 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
71 String value attributes for CCL parser.
73 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
74 which their FirstSearch server returns in Init responses, sometimes
75 carrying useful diagnostic information when Init fails. This has the
76 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
77 "z39.50/oclcui.asn", where its definition is somewhat different from
78 what OCLC document on their web-site, as required to interoperate with
81 Support for anonymous authentication in yaz-client. Use the command
84 * Fix the OID of the Index Data-local "admin" Extended Service from
85 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
86 the 1000, which indicates a locally-defined OID, was a mistake.
90 Fix CCL directive @case handling so that it affects string match for
91 both CCL keywords and qualifiers.
93 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
94 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
95 Decoder has been updated with ASN.1 changes as listed in
96 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
97 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
98 z_IUUpdate, remains unchanged.
100 ZOOM_record_get may now return a record in a specific character set.
101 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
102 "from" is the character set of record as returned by target. "to" is
103 the character set to be returned. If omitted, "to" is UTF-8.
105 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
107 New ODR utility, odr_getelement, which returns name of element for
108 which encoding/decoding failed.
110 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
111 in cases where a required element was omitted.
113 Bug fix: some MARC8 sequences were not converted.
115 New ZOOM option "step" which specifies number of records to be
116 retrieved in one chunk. Used in conjunction with "start" and "count".
118 SRW support for yaz-client. Use scheme http: to use it, e.g.
121 yaz-client no longer does (un)intelligent character set conversions
122 by default. Can be enabled with charset and marc_charset commands.
124 xmalloc trace fix for 64-bit systems such as DEC alpha.
126 Solaris 2.6 compile fix.
128 New function, cql_strerror() translates SRW error codes, as returned
129 by cql_transform_error(), into human-readable English strings. Used
130 in yaz-client diagnostics when appropriate.
132 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
133 converts it into a type-1 query which is sent to the server. This
134 makes CQL available for use with all Z-servers, as opposed to the tiny
135 minority that can handle CQL queries themselves.
139 New Debian package layout similar to the Redhat Package layout.
141 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
142 and search result respectively.
146 Redhat package is now several packages: libyaz (runtime libraries),
147 libyaz-devel (development and documentation, and yaz (utility programs).
148 Package spec file by Morten Bøgeskov.
150 New member 'schema' in struct bend_fetch_rr which the name of requested
151 schema (SRW/SRU) for record (or NULL if none was given). The fetch
152 handler MAY set this to reflect the schema of the returned record.
154 New member 'display_term' in struct scan_entry. GFS now sets member entries
155 and allocates scan entries to be filled by user scan handler. In previous
156 version, entries member was allocated by the scan handler. That still works,
157 but the GFS will ignore member display_term - assuming it was NOT set by
158 the handler. The fact that the GFS now allocates the entries both allows
159 for new members and makes a scan handler easier to write.
161 Fix CQL lex buffer overflow.
163 SRW/SRU recordPacking. For SRW default recordPacking is string. For
164 SRU default recordPacking is string.
166 SRU protocol support for frontend server.
168 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
170 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
172 Added scan for the ZOOM shell (zoomsh).
176 * String Identifers for Schemas (Amendment 5).
177 http://lcweb.loc.gov/z3950/agency/amend/am5.html
178 Old definition for schema
179 Odr_oid *schema; /* OPT */
184 Z_InternationalString *uri;
185 #define Z_Schema_oid 1
186 #define Z_Schema_uri 2
189 * resultCount parameter to Sort Response (Amendment 1).
190 http://lcweb.loc.gov/z3950/agency/amend/am1.html
192 Support for SRW 1.0 over HTTP. This is an optional feature and
193 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
196 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
197 on the same port. SRW SearchRetrieveRequests are mapped
198 to bend_init,bend_search,bend_fetch,bend_close.
200 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
202 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
203 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
205 ZOOM connections are SRW based if schem http is used for hostname
206 in connect, e.g. z = ZOOM_connection_new("http://myserver");
207 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
209 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
210 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
211 distance=n, order=true/false, relation=le, prox unit=word. If
212 n is omitted, distance 1 is used.
214 Fixed problem with C compiler include path in wrong order.
216 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
217 on Solaris. Patch from Ko van der Sloot.
219 New MARC decode API. All new functions operate on a yaz_marc_t
220 handle. The most important new functions are: yaz_marc_create,
221 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
222 decode and destroy respectively. Decoder can produce formats
223 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
224 include/yaz/marcdisp.h.
226 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
227 to UTF-8, UCS-32, wchar_t or Latin-1.
229 * Prototypes for yaz_iconv_-functions moved to separate header
230 include/yaz/yaz-iconv.h.
232 Make a few private functions 'static' in unix.c. This prevents
233 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
235 For ZOOM connection, the options targetImplementation{Id,Name,Version}
236 are set when Init Response is received.
238 New function ZOOM_connection_error_x similar to ZOOM_connection_error
239 but returns diagnostic set as well.
241 New function yaz_strerror which is a portable wrapper for
242 strerror/strerror_r/GetLastMessage.
244 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
245 is returned for MARC. If type is "oai", then OAI MARC is returned.
247 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
252 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
254 Fix bad race conditions on SIGTERM and terminate gracefully in
257 Move retrieval (data1) module to Zebra since nobody seems to be
260 Add GRS-1 render for ZOOM using same format as yaz-client.
264 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
266 Fix broken ESpec handling in data1 module.
268 SGML reader parses comments and makes them part of the data1 tree.
270 Added several type casts so that YAZ compiles as C++ code.
272 ZOOM didn't handle PDU encoding failures properly.
274 Added more Bib-1 diagnostics (approved extensions).
276 GNU configure: better check for iconv.
278 More portable use of accept, getpeername. Check for socklen_t. Use
279 int/size_t if socklen_t is not defined.
283 PQF parser rejects bad queries - including those with extra
284 characters in them. PQF parser used to silently ignore that.
285 Cleaner API for PQF added, which allows you to get detailed
286 error information for bad queries (see yaz/pquery.h).
288 Fixed bug in ZOOM_record_get for type "database".
290 Implemented mini iconv library supporting conversions between
291 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
293 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
297 Fixed ZOOM C record cache so that preferredRecordSyntax and
298 elementSetName is used to check for already fetched records.
302 Added three members in bend_initrequest structure to facilitate
303 character set negotiation.
305 Fixed a bug in frontend server that could cause indefinite
306 loops under rare conditions.
308 Revised character set utilities (charneg.h) so that encoding
309 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
311 For PQF, directive @term <type> sets term type for Scan/Search.
312 Here <type> is general, string, numeric, null. The term type
313 is inherited - just like @attr.
315 New call odr_set_charset that sets character set conversion for
316 international-strings on a ODR stream. Prototype is:
317 int odr_set_charset(ODR o, const char *to, const char *from);
318 The InternationalString is still represented as C string in YAZ
319 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
320 won't). On the protocol level, you can use any encoding.
322 Support for UNIX sockets in ZOOM.
324 Solaris recv sometimes returns errno == ENOENT. It is treated as
325 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
327 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
328 both client and server. Code by Morten Bøgeskov.
332 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
333 that they can be used directly from Visual Basic. You must recompile
334 your windows APP if you're using ZOOM.
336 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
337 Commands "lang" and "charset" sets language and character set respectively.
338 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
339 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
341 Attributes from multiple CCL fields may be OR'ed rather than merged
342 using directive "@field or". Fields are still merged by default -
343 equivalent to "@field merge".
345 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
348 Fixed bug in zget for parameter ExtendedServicesResponse.
354 Added PQF feature: '@attr type=value' may be written as '@type=value'.
356 Client displays USR.1:SearchResult-1 (hits per term).
358 Additional Search Info for search in Generic Frontend Server.
360 Fixed CCL parsing of "field=s".
362 WIN32 installer - using the excellent NSIS software from nullsoft.
364 Fixed CCL parsing of "field = - <number>".
366 Added function yaz_marc_decode that decodes MARC for line mode
367 display or XML (similar to that used by JZKit).
369 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
370 Z39.50. But ISO/ILL was, however.
372 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
373 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
375 http://lcweb.loc.gov/z3950/agency/amend/am2.html
376 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
380 New YAZ client features: Command completion and new commands:
381 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
382 Code provided by Jacob Poulsen.
384 New call oid_trav, that visits all registered OIDs via callback.
386 Function ZOOM_record_get now returns const char pointer rather than
387 void pointer. It saves a lot of type casts.
389 For YAZ client, command "auth" now allows you to set authentication
390 in IdPass style. It is enabled when three tokens are given - order
391 is user, group and password.
393 Fix memory leaks in MARC record handling for ZOOM.
395 New option for YAZ client, -k <kilobytes> that sets
396 maximum record size. Similar to -k option for generic frontend
397 server and yaz-ztest.
399 More fixes for scan. Non-zero stepSize handled. OID's fixes.
401 Prefix query parser reports "fail" when bad attribute set is given.
403 Fix in MARC decoder. Proximity logging. Fix for attribute set
404 in scan handler for server. Patches by Shigeru Ishida.
406 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
409 Configure option --with-openssl=<dir> now works when a directory is
410 specified. Patch provided by Morten Bøgeskov.
412 New option for YAZ client, -u <auth>, that sets authentication.
414 ZOOM fix: error information was sometimes "missing", since error
415 was cleared/reset too when it shouldn't.
417 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
421 Scan for ZOOM API. New object ZOOM_scanset. New functions
422 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
423 ZOOM_scanset_destroy.
425 New ZOOM function, ZOOM_connection_last_event, that returns type
426 of last event (such as "receive data", "send data", "apdu received",
429 New ZOOM option, schema, that specifies schema for retrieval.
431 New CCL feature. Qualifiers can be aliases for one or more
432 other qualifiers (if more than one is given, OR is used).
434 ZOOM uses named result sets if target supports it.
436 Two new YAZ client commands: . (dot, which sources a script of YAZ
437 client commands), and ! (to execute shell command.). Implemented
440 Working on Debian packages.
444 YAZ client enables named result sets only if target supports it.
446 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
448 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
449 with key="host" to get same result.
451 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
452 Function Z3950_resultset_record(s) returns references to records
453 "owned" by resultset. To become owner use Z3950_record_clone.
455 Function z_ext_record handles Extended Services. Thanks to
460 CCL Parser fix: ignore token comma when dealing with and-lists.
462 Documentation updates for COMSTACK.
464 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
465 Changed prototype Z3950_records. For some functions, int parameters
466 were changed to size_t.
468 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
471 New MARC decode/display function, marc_display_exl, which properly rejects
472 non-ISO2709 records. YAZ client uses it.
476 Fix bug: local attribute set wasn't set correctly in PQF strings.
480 * Old Z39.50 codecs no longer supported.
482 Added ZOOM C binding. See http://zoom.z3950.org/
484 Renamed states for COMSTACKs to avoid confusion with events.
486 Implemented cs_look and proper cs_rcvconnect.
488 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
490 Configure detects POSIX threads on OpenBSD.
492 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
493 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
495 When error is returned from present handler, non-surrogate diagnostic
496 is returned in present response (and fetch handler is no longer called).
498 * Minor adjustments to pquery parser (PQF). Token characters may be
499 escaped by using backslash (C-style).
501 PQF parser allows string attribute values to be specified. For @attr,
502 non-numeric characters after the equal-sign are treated as strings
503 (e.g. @attr 9=title).
505 CCL trunction character may be defined (@truncation in file)
507 * function zget_ExtendedServicesRequest sets waitAction to
508 waitIfPossible (was wait).
510 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
513 CCL operator names may be set in field definition files (CCL_bibset).
514 See ccl/bib1 for an example.
516 Fixes in ASN.1 compiler for C++ compatibility.
518 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
519 and "op_or" to avoid conflict with C++.
521 Fixed problem with GNU readline detection on Redhat 7.0.
523 Added step-size for Scan backend handler.
525 Fixed bug that made the frontend server crash when no attribute
526 set was specified for scan.
528 Front-end server automatically switches to original working directory
529 when installed as an NT service. Previously -w had to be specified to
532 Added extended attributes for retrieval module (data1), so that data1
533 records carry d1_readXML/SGML attributes. d1_read also supports
534 null-data rules ( <tag/>)
536 On UNIX when POSIX threads are available, a separate library libyazthread
537 is created. Programmers should link with that library and the yaz library
538 when using threads. The reason for the split was that some applications
539 on Linux, such as Apache, doesn't work well when using shared objects that
542 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
543 (or any frontend server) in SSL mode by specifying ssl: followed by
544 address. Only tested on UNIX.
546 Added feature for CCL module. Virtual structure s=al or s=ol generates
547 and-list and or-list respectively instead of phrase search.
551 * Added prefix "yaz_" for the functions log_init.., log_file.. and
552 log_mask_str. This was done to avoid name conflicts with other libraries
553 (such as other PHP extensions).
555 Added raw OID member for preferred record syntax (request_format_raw)
556 and returned record syntax (output_format_raw) for backend fetch method.
558 Config file yaz-config now accepts options so that it returns specific
559 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
561 Shared library support for UNIX using GNU libtool.
563 * Modified backend interface. Request/Response struct's replaced by
564 one read/write C struct. For example bend_fetchrequest and
565 bend_fetchresult have been replaced by single bend_fetch_rr struct.
566 Every handler - even search has to be registered in bend_init
567 handler. This means that the YAZ library no longer refers to
568 external functions and it makes it possible to make the whole
569 thing a single DLL/SO.
571 Added Segment handler for backend server.
573 Added Zmbol/Zebra administrative functions to YAZ client.
575 Threaded frontend server on UNIX (when POSIX Threads are available).
576 Starting the server with option -T enables multi-threading.
580 Added configure option --enable-comp/disable-comp to control use
581 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
582 located in sub directory asn.
584 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
585 in ${exec_prefix}/bin along with the other programs yaz-client and
588 GNU automake used to maintain makefiles.
592 Changed retrieval module so that we can load records with no abstract
593 syntax defined. Tagpaths in these records are fully composed of string
596 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
600 On UNIX, the generated makefile now supports a proper 'make install'.
601 The prefix can be set via GNU configure to set the install location
602 (default is /usr/local).
604 * YAZ programs client and ztest were renamed to yaz-client and
605 yaz-ztest to avoid conflicts when users install YAZ in "standard"
606 locations, such as /usr/bin,/usr/local/bin,etc.
608 * YAZ Header files were moved from include to include/yaz. YAZ Header
609 files are referred to as include <yaz/log.h> rather than <log.h>.
610 The YAZ include path (-I ..) is therefore the same as before. Programmers
611 should update their #include statements or use -Ipath/include/yaz
612 instead. The main motivation for doing this change is that YAZ header files
613 can be installed in "standard" locations /usr/include,/usr/local/include
614 without introducing conflicts, since ALL YAZ header files are stored
615 in subdirectory yaz (under /usr/include for example).
617 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
618 rather than project/workspace files. We switched because project files
619 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
622 Changed name of logging function, logf, to yaz_log, to prevent name
623 clash with some math-log functions. The YAZ header log.h defines logf
624 to yaz_log (#define) so there should be no incompatibilities by this
627 Added bend_start/bend_stop handlers for server. These handler are
628 called on start/stop of server. For windows they are called whenever
629 a service is started/stopped.
631 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
632 a fairly small ASN.1 compiler written in Tcl. The compiler is located
633 in util/yc.tcl. The auto-generated C code structures are, in a few
634 cases, incompatible with the old decoders. There are differences in the
635 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
636 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
637 The preprocessor variable ASN_COMPILED is defined when the compiled
638 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
639 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
640 wish to use the old encoders/decoders you can specify --disable-yc
643 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
644 version so that it supports both new - and old version of DB Update
646 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
647 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
648 change. The name parameter can be set to 0 in which no name is specified
649 for the construction. The macros odr_implicit and odr_explicit sets name
650 parameter to zero for the construction involved. New macros
651 odr_implicit_tag and odr_explicit_tag are similar to the others,
652 except that a name parameter is added. For programmers' that don't use
653 ODR they probably only need to change the call to z_APDU and z_External.
655 Added access control facility by interfacing the TCP wrapper library.
656 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
657 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
658 name of the daemon and enables the access control as specified in
659 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
661 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
662 den Dool <H.M.vdnDool@kub.nl>.
664 Added reference ID parameter to most functions in server API - refer
665 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
667 Changed name of ccl library to libccl.a (was ccl.a).
669 Fixed bug in decoder for Explain (Category TargetInfo).
671 Added support for GNU readline in client. Thanks to Jacob Poulsen
672 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
674 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
675 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
676 IMPLEMENTATION! This change was made to the development version before
677 the ZIG decided to retract the amendment. If any users MUST be
678 compatible with the original Update definition, PLEASE CONTACT US, and
679 we will include a separate definition corresponding to the old Update
680 ES. Note that because of the change to the ASN.1 of the
681 TaskPackageRecordStructure we cannot define a single structure that
682 will support both versions.
684 * Added const modifier to buffer parameter for some ODR/BER encoding
685 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
686 completeWAIS, odr_dumpBER.
688 Fixed bug in client.c which caused a crash when a scanResponse didn't
689 contain positionOfTerm.
691 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
692 * will cause an error in a client if a non-YAZ target sends both a
693 * list of Scan entries and non-surrogate diagnostics.
695 Retrieval module enhancements. Tag sets may be typed in the reference
696 to it. From the .abs-file the "tagset" directive takes a third optional
697 integer type for the tag set referenced. From a .tag-file the "include"
698 directive takes a third optional type as well. The old "type" directive
699 in the tag set itself is still recognized but acts as the default type
702 Backend interface change. Individual Scan terms returned from bend_scan
703 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
704 in include/backend.h.
706 Retrieval module enhancements. Multiple tag sets and attribute sets may
707 be specified in abstract syntax specs. Revised the error/warning for
708 logging messages reported by the retrieval module when reading the
711 Object Identifier system (oid_..) changed. The API is backwards
712 compatible but the oid-routines now allocates new OID's when needed.
713 Raw OID's may be specified in oid_getvalbyname.
715 YAZ now uses GNU configure to generate Makefile(s).
717 * Minor changes in some of the member names of DeleteResultSetRequest and
718 DeleteResultSetResponse. See include/proto.h.
720 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
721 and added member 'languages' in TargetInfo (which was missing).
723 Changed the way attribute sets are handled in the retrieval
724 module. These are now cached, just like the abstract syntaxes
727 Changed YAZ so that it links with compiled ASN.1.
729 Added Explain-schema definitions and mapping routines. The following
730 Explain categories have been implemented: AttributeDetails,
731 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
733 Fixed minor bug in Windows version of Server Library.
735 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
737 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
739 Added EXTERNAL: UNIverse Resource Report (non-standard).
741 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
742 ENUMERATED and SET OF.
744 * Added 'const' to some of the char pointer arguments for the
745 functions, data1_read_node, data1_getelementbytagname,
746 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
749 Fixed bug in data1_insert_taggeddata - the last_child member of
750 parent wasn't initialised.
752 * Changed data1_read_record and data1_read_node so that the supplied
753 "SGML"-buffer is read-only. In particular the resulting data1 - tree
754 doesn't refer to any parts of the "SGML"-buffer.
756 Fixed bug in server library (Windows version of statserv_remove).
758 * Changed code so that it compiles as C++. The type definition
759 of Odr_fun which is a member of Odr_arm was changed. The result is,
760 that an explicit typecast is needed for the fun pointer when
761 using Odr_arm - as in:
762 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
764 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
766 Implemented the new structured date and time definition as approved
767 by the ZIG. Added schemaId element to the specificTag in Espec-1
768 (also approved at the last ZIG). Thanks to RVDM.
770 Added some Object identifiers (RVDM).
772 Changed the Update Extended Service (RVDM).
774 Added command "refid" to client which specifies referenceId for
775 the following requests.
777 Implemented extended service handling for server. See ztest.c
778 for an example as well as backend.h. New handlers are registerd
781 * Changed interface for sort in server.
783 Added new members to statserv_options_block. It allows a server
784 to read options from another source than just the command line. Thanks
785 to Charles Woodfield.
787 * Changed definition of Z_Triple in file prt-grs.h - member boolean
788 renamed to zboolean. Some C++ compilers complained about the name.
790 Minor changes to gils.abs. Added index 's' (sort) on title
791 and date/time-last-modified.
795 Fixed bug in server library regarding inetd mode (-i). This bug
796 was introduced by release 1.4.
800 Added sort facility in client and backend server interface.
802 Fixed problem with dependencies in Makefile(s).
804 Fixed bugs for encoders/decoders of extended services and
807 Implemented sub-tree feature for schemas. Sub-trees are
808 referenced in *.abs-files. See explain.abs for an example
809 of the use of this feature.
811 Modified bib1.att; local attributes for ANY didn't include
812 ANY itself (only affects use of the retrieval module).
814 Fixed bug in plain SGML reader in function data1_read_node:
815 tags with prefix "var" was incorrectly interpreted as variants.
817 Added feature "sub-schemas" to enable references to - and definitions
818 of - group of elements.
820 * Removed member parent from type data1_element (in data1.h).
822 Implemented function odr_nullval() that returns the value of
825 * Removed member num_children from data1_node (in data1.h).
827 Made NT service interface part of the server library. The
828 function statserv_main uses the NT service when required and
829 calls the statserv_start / statserv_close routines.
831 Routine zget_SearchRequest and zget_PresentRequest fills
832 resultSetName/Id member with "default" instead of "Default".
834 Fixed memory leak in server. Request queue member wasn't freed.
836 Fixed nmem_exit so that memory is freed.
840 Revised the CCL parser utility to be thread safe.
842 Added function, oid_ent_to_oid, to replace the function
843 oid_getoidbyent, which is not thread safe.
845 * Added nmem_init and nmem_exit to initialize and release
846 NMEM resources. Function nmem_init should be called once in the
847 initial thread before NMEM/ODR is used. statserv.c and client.c
848 have been changed accordingly. The change was necessary to make
849 NMEM thread safe. The NMEM memory pool is shared amongst threads
850 in a process. Unix-based applications will still work fine without
853 Added NT Services interface for the the Z39.50 (statserv) Server.
854 Refer to the ztest.c source on the usage.
856 Windows 95/NT port using MSVC5.0. Project files are included in the
859 * Defined new 'global' handle for the retrieval (data1) system. The
860 new handled, data1_handle, describes the state of the data1 system.
861 This handle is passed as first argument to virtually all
862 data1 related routines. The functions data1_create and data1_destroy
863 creates and destroys a data1 handle respectively.
865 Added ODR encode stream member to all backend request structures
866 init, search, scan etc. This stream should be used to allocate all
867 memory used for the response when thread safe operation is needed.
869 Changed the comstack utility, cs_addstr, to be thread safe. The
870 returned hostname string returned by the function is now part the
873 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
874 function. The cs_straddr takes a COMSTACK handle as argument, so this
875 function must be used after cs_create and before bind/connect.
876 This function is thread safe.
878 Moved test server to 'ztest' directory - generic server code still
879 in 'server' directory.
881 Made prefix query (pquery.c) utility thread safe.
883 Added new function modifier YAZ_EXPORT to 'export' public DLL
884 functions when using windows (see include/yconfig.h).
886 Added definitions to the OID database (util/oid.c) (RVDM).
888 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
890 Added call to ccl_rpn_delete in client program.
892 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
893 release of RPN structure.
895 Added support for C++, headers uses extern "C" for public definitions.
896 With input from RVDM.
898 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
899 Thanks to Ronald van der Meer (RVDM).
901 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
903 Added support for private extensions to the OID database
904 (oid_setprivateoids()). Thanks to RVDM.
906 Added optional, physical ANY (key replication)
908 Fixed null-reference problem in GRS-1 output filter.
910 Proximity operator added to Prefix Query Format (PQF).
912 In test client command "base" accepts multiple databases.
914 Fixed bug in cs_close stack that caused trouble with WINSOCK.
918 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
920 Smallish bug-fixes in the new encoders/decoders (explain).
922 Bug fixed in DeleteRequest.
924 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
926 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
928 Added SOIF syntax (using private OID for now) to retrieval module and client.
930 Added Update extended service.
932 Added SearchResult-1 additional info structure.
934 Added optional CCL (ISO8777) interpreter as separate module. Available
937 --- 1.2 1996/6/10 (1st anniversary release)
939 Added Summary record syntax. Lightly tested.
941 Added OPAC record syntax. Untested.
943 Added ResourceReport service encoders/decoders. Untested.
945 Fixed bug in z_Unit - wrong tagging on unitSystem.
947 Fixed bug in the DiagRecs decoder.
949 Added options for max PDU size and session timeout to frontend-server.
951 Added documentation of query-language parsers and other supporting utilities.
953 [frontend-server] Added Attribute set to the bend_scanrequest API.
955 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
956 surrogate diagnostics were generated.
958 [retrieval] Allow multiple local values for attribute.
960 [retrieval] Allow multiple attributes per element in .abs files. index type.
962 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
966 Minor changes, mostly specific to Zebra's requirements (retrieval)
970 Repaired bug in frontend server when running multiple listening
971 endpoints in dynamic mode.
973 z_External() now won't break if a known, ASN.1 value comes encapsulated
974 in an octet-string. The value will pass through unmodified in an Odr_oct.
976 Added a bit of code to the demo client to decode & display
977 ASN.1-structured records represented in the octet-aligned branch of
978 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
980 Added z_ext_getentbyref() to the ASN module. Doc updated.
982 * Completed the SCAN definition in the ASN module. This may break SCAN
983 code based on older YAZ-versions at compile-time. The fix is easy -
986 * Added 'displayTerm' and OtherInformation to the TermInfo structure
987 under the SCAN definition. Remember to initialize this, server-people.
989 Comstack should now support the WAIS protocol in TCP/IP mode. Note
990 that this does not extend to ODR and ASN.
992 Comstack allows insertion of established socket (primarily for
993 inetd-operation of servers). Doc updated.
995 Front-end server can now start from the inetd in TCP mode. Doc
1002 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1003 the rank and record number.
1005 Adjustments to the frontend server.
1007 Fixed diagnostic BER dumper. It ignored the file argument.
1011 Various changes to retrieval module.
1013 Changed the union discriminators of the protocol files from enums to
1014 ints paired with #defines.
1016 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1019 *Changed operator in the RPN structure to 'roperator', again to avoid a
1022 Fixed problems in Explain decoders/encoders.
1024 --- 1.0pl2 1995/12/6
1026 Memory bug in log module fixed.
1028 --- 1.0pl1 1995/12/5
1030 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1032 Bug in Explain DatabaseInfo module fixed.
1034 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1038 The shift to v1.0 signals that we now consider the *core* functionality
1039 of YAZ reasonably stable (the core being more or less equivalent to
1040 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1041 tested (Explain not at all - though that will happen soonish).
1043 Minor changes to code to support Windows port.
1045 Various minor changes after we're getting to use GRS-1 & co. more.
1047 Added Espec-1 format.
1049 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1050 of the protocol and it cannot be selected when encoding (maps into 'string'
1051 when decoding). Needed to talk to some servers.
1053 Demo client can request simple element set names.
1055 Added Diagnostic Format encoders/decoders.
1057 Added simple Close handling to frontend server (no hooks for resource
1058 reporting yet), and demonstration client.
1060 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1062 --- 1.0b3 1995/08/24
1064 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1065 handled incorrectly when records were requested in the searchResponse. This
1066 will only affect you if you use the frontend-server.
1068 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1069 Test-client will ask for and print GRS1. Ztest will return dummy records
1072 Added Explain encoders/decoders to the service-level API. Untested.
1074 Added Extended Services: Item Order encoders and decoders to the Service-
1075 level API. Untested. We could use a recent copy of the pertinent bits
1076 of the ILL protocol to add those bits.
1078 Added diagnostic format 1 encoders/decoders to the service-level API.
1081 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1082 odr_cons.c, which causes a more correct output.
1084 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1085 was always set to 0 when no records were requested in the searchRequest.
1087 * Added better external-handling. This shouldn't harm old code that
1088 *encodes* externals. It can break code that looks for a
1089 'single-ASN1-type' representation, since those types that are known
1090 are now decoded immediately. Look at the SUTRS sample code in
1091 seshigh.c and client.c. Documentation updated.
1093 Handling of structured records in bend_fetchresponse. Length -1 marks
1094 structured record, type is deduced from format field.
1096 --- 1.0b2 1995/06/27
1097 Fairly quick maintenance release to add SUTRS support.
1099 Fixed handling of SUTRS records in the demonstration client.
1101 * Added format field to the bend_fetchrequest and bend_fetchresponce
1102 structures of the backend API (frontend server). When the record is
1103 returned, the value of the format field is mapped to an OID. The
1104 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1105 of the record. The special value VAL_NONE in the bend_request means
1106 that no specific format was requested by the client. Documentation
1107 updated accordingly. Test server (ztest) will return a fixed dummy
1108 SUTRS record if your client requests SUTRS.
1110 Documentation updated accordingly.
1112 You can now set external libraries and RANLIB support in the top-level
1116 First public release.