1 Possible compatibility problems with earlier versions marked with '*'.
3 xmalloc trace fix for 64-bit systems such as DEC alpha.
7 New Debian package layout similar to the Redhat Package layout.
9 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
10 and search result respectively.
14 Redhat package is now several packages: libyaz (runtime libraries),
15 libyaz-devel (development and documentation, and yaz (utility programs).
16 Package spec file by Morten Bøgeskov.
18 New member 'schema' in struct bend_fetch_rr which the name of requested
19 schema (SRW/SRU) for record (or NULL if none was given). The fetch
20 handler MAY set this to reflect the schema of the returned record.
22 New member 'display_term' in struct scan_entry. GFS now sets member entries
23 and allocates scan entries to be filled by user scan handler. In previous
24 version, entries member was allocated by the scan handler. That still works,
25 but the GFS will ignore member display_term - assuming it was NOT set by
26 the handler. The fact that the GFS now allocates the entries both allows
27 for new members and makes a scan handler easier to write.
29 Fix CQL lex buffer overflow.
31 SRW/SRU recordPacking. For SRW default recordPacking is string. For
32 SRU default recordPacking is string.
34 SRU protocol support for frontend server.
36 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
38 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
40 Added scan for the ZOOM shell (zoomsh).
44 * String Identifers for Schemas (Amendment 5).
45 http://lcweb.loc.gov/z3950/agency/amend/am5.html
46 Old definition for schema
47 Odr_oid *schema; /* OPT */
52 Z_InternationalString *uri;
53 #define Z_Schema_oid 1
54 #define Z_Schema_uri 2
57 * resultCount parameter to Sort Response (Amendment 1).
58 http://lcweb.loc.gov/z3950/agency/amend/am1.html
60 Support for SRW 1.0 over HTTP. This is an optional feature and
61 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
64 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
65 on the same port. SRW SearchRetrieveRequests are mapped
66 to bend_init,bend_search,bend_fetch,bend_close.
68 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
70 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
71 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
73 ZOOM connections are SRW based if schem http is used for hostname
74 in connect, e.g. z = ZOOM_connection_new("http://myserver");
75 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
77 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
78 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
79 distance=n, order=true/false, relation=le, prox unit=word. If
80 n is omitted, distance 1 is used.
82 Fixed problem with C compiler include path in wrong order.
84 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
85 on Solaris. Patch from Ko van der Sloot.
87 New MARC decode API. All new functions operate on a yaz_marc_t
88 handle. The most important new functions are: yaz_marc_create,
89 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
90 decode and destroy respectively. Decoder can produce formats
91 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
92 include/yaz/marcdisp.h.
94 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
95 to UTF-8, UCS-32, wchar_t or Latin-1.
97 * Prototypes for yaz_iconv_-functions moved to separate header
98 include/yaz/yaz-iconv.h.
100 Make a few private functions 'static' in unix.c. This prevents
101 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
103 For ZOOM connection, the options targetImplementation{Id,Name,Version}
104 are set when Init Response is received.
106 New function ZOOM_connection_error_x similar to ZOOM_connection_error
107 but returns diagnostic set as well.
109 New function yaz_strerror which is a portable wrapper for
110 strerror/strerror_r/GetLastMessage.
112 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
113 is returned for MARC. If type is "oai", then OAI MARC is returned.
115 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
120 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
122 Fix bad race conditions on SIGTERM and terminate gracefully in
125 Move retrieval (data1) module to Zebra since nobody seems to be
128 Add GRS-1 render for ZOOM using same format as yaz-client.
132 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
134 Fix broken ESpec handling in data1 module.
136 SGML reader parses comments and makes them part of the data1 tree.
138 Added several type casts so that YAZ compiles as C++ code.
140 ZOOM didn't handle PDU encoding failures properly.
142 Added more Bib-1 diagnostics (approved extensions).
144 GNU configure: better check for iconv.
146 More portable use of accept, getpeername. Check for socklen_t. Use
147 int/size_t if socklen_t is not defined.
151 PQF parser rejects bad queries - including those with extra
152 characters in them. PQF parser used to silently ignore that.
153 Cleaner API for PQF added, which allows you to get detailed
154 error information for bad queries (see yaz/pquery.h).
156 Fixed bug in ZOOM_record_get for type "database".
158 Implemented mini iconv library supporting conversions between
159 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
161 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
165 Fixed ZOOM C record cache so that preferredRecordSyntax and
166 elementSetName is used to check for already fetched records.
170 Added three members in bend_initrequest structure to facilitate
171 character set negotiation.
173 Fixed a bug in frontend server that could cause indefinite
174 loops under rare conditions.
176 Revised character set utilities (charneg.h) so that encoding
177 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
179 For PQF, directive @term <type> sets term type for Scan/Search.
180 Here <type> is general, string, numeric, null. The term type
181 is inherited - just like @attr.
183 New call odr_set_charset that sets character set conversion for
184 international-strings on a ODR stream. Prototype is:
185 int odr_set_charset(ODR o, const char *to, const char *from);
186 The InternationalString is still represented as C string in YAZ
187 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
188 won't). On the protocol level, you can use any encoding.
190 Support for UNIX sockets in ZOOM.
192 Solaris recv sometimes returns errno == ENOENT. It is treated as
193 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
195 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
196 both client and server. Code by Morten Bøgeskov.
200 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
201 that they can be used directly from Visual Basic. You must recompile
202 your windows APP if you're using ZOOM.
204 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
205 Commands "lang" and "charset" sets language and character set respectively.
206 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
207 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
209 Attributes from multiple CCL fields may be OR'ed rather than merged
210 using directive "@field or". Fields are still merged by default -
211 equivalent to "@field merge".
213 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
216 Fixed bug in zget for parameter ExtendedServicesResponse.
222 Added PQF feature: '@attr type=value' may be written as '@type=value'.
224 Client displays USR.1:SearchResult-1 (hits per term).
226 Additional Search Info for search in Generic Frontend Server.
228 Fixed CCL parsing of "field=s".
230 WIN32 installer - using the excellent NSIS software from nullsoft.
232 Fixed CCL parsing of "field = - <number>".
234 Added function yaz_marc_decode that decodes MARC for line mode
235 display or XML (similar to that used by JZKit).
237 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
238 Z39.50. But ISO/ILL was, however.
240 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
241 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
243 http://lcweb.loc.gov/z3950/agency/amend/am2.html
244 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
248 New YAZ client features: Command completion and new commands:
249 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
250 Code provided by Jacob Poulsen.
252 New call oid_trav, that visits all registered OIDs via callback.
254 Function ZOOM_record_get now returns const char pointer rather than
255 void pointer. It saves a lot of type casts.
257 For YAZ client, command "auth" now allows you to set authentication
258 in IdPass style. It is enabled when three tokens are given - order
259 is user, group and password.
261 Fix memory leaks in MARC record handling for ZOOM.
263 New option for YAZ client, -k <kilobytes> that sets
264 maximum record size. Similar to -k option for generic frontend
265 server and yaz-ztest.
267 More fixes for scan. Non-zero stepSize handled. OID's fixes.
269 Prefix query parser reports "fail" when bad attribute set is given.
271 Fix in MARC decoder. Proximity logging. Fix for attribute set
272 in scan handler for server. Patches by Shigeru Ishida.
274 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
277 Configure option --with-openssl=<dir> now works when a directory is
278 specified. Patch provided by Morten Bøgeskov.
280 New option for YAZ client, -u <auth>, that sets authentication.
282 ZOOM fix: error information was sometimes "missing", since error
283 was cleared/reset too when it shouldn't.
285 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
289 Scan for ZOOM API. New object ZOOM_scanset. New functions
290 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
291 ZOOM_scanset_destroy.
293 New ZOOM function, ZOOM_connection_last_event, that returns type
294 of last event (such as "receive data", "send data", "apdu received",
297 New ZOOM option, schema, that specifies schema for retrieval.
299 New CCL feature. Qualifiers can be aliases for one or more
300 other qualifiers (if more than one is given, OR is used).
302 ZOOM uses named result sets if target supports it.
304 Two new YAZ client commands: . (dot, which sources a script of YAZ
305 client commands), and ! (to execute shell command.). Implemented
308 Working on Debian packages.
312 YAZ client enables named result sets only if target supports it.
314 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
316 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
317 with key="host" to get same result.
319 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
320 Function Z3950_resultset_record(s) returns references to records
321 "owned" by resultset. To become owner use Z3950_record_clone.
323 Function z_ext_record handles Extended Services. Thanks to
328 CCL Parser fix: ignore token comma when dealing with and-lists.
330 Documentation updates for COMSTACK.
332 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
333 Changed prototype Z3950_records. For some functions, int parameters
334 were changed to size_t.
336 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
339 New MARC decode/display function, marc_display_exl, which properly rejects
340 non-ISO2709 records. YAZ client uses it.
344 Fix bug: local attribute set wasn't set correctly in PQF strings.
348 * Old Z39.50 codecs no longer supported.
350 Added ZOOM C binding. See http://zoom.z3950.org/
352 Renamed states for COMSTACKs to avoid confusion with events.
354 Implemented cs_look and proper cs_rcvconnect.
356 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
358 Configure detects POSIX threads on OpenBSD.
360 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
361 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
363 When error is returned from present handler, non-surrogate diagnostic
364 is returned in present response (and fetch handler is no longer called).
366 * Minor adjustments to pquery parser (PQF). Token characters may be
367 escaped by using backslash (C-style).
369 PQF parser allows string attribute values to be specified. For @attr,
370 non-numeric characters after the equal-sign are treated as strings
371 (e.g. @attr 9=title).
373 CCL trunction character may be defined (@truncation in file)
375 * function zget_ExtendedServicesRequest sets waitAction to
376 waitIfPossible (was wait).
378 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
381 CCL operator names may be set in field definition files (CCL_bibset).
382 See ccl/bib1 for an example.
384 Fixes in ASN.1 compiler for C++ compatibility.
386 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
387 and "op_or" to avoid conflict with C++.
389 Fixed problem with GNU readline detection on Redhat 7.0.
391 Added step-size for Scan backend handler.
393 Fixed bug that made the frontend server crash when no attribute
394 set was specified for scan.
396 Front-end server automatically switches to original working directory
397 when installed as an NT service. Previously -w had to be specified to
400 Added extended attributes for retrieval module (data1), so that data1
401 records carry d1_readXML/SGML attributes. d1_read also supports
402 null-data rules ( <tag/>)
404 On UNIX when POSIX threads are available, a separate library libyazthread
405 is created. Programmers should link with that library and the yaz library
406 when using threads. The reason for the split was that some applications
407 on Linux, such as Apache, doesn't work well when using shared objects that
410 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
411 (or any frontend server) in SSL mode by specifying ssl: followed by
412 address. Only tested on UNIX.
414 Added feature for CCL module. Virtual structure s=al or s=ol generates
415 and-list and or-list respectively instead of phrase search.
419 * Added prefix "yaz_" for the functions log_init.., log_file.. and
420 log_mask_str. This was done to avoid name conflicts with other libraries
421 (such as other PHP extensions).
423 Added raw OID member for preferred record syntax (request_format_raw)
424 and returned record syntax (output_format_raw) for backend fetch method.
426 Config file yaz-config now accepts options so that it returns specific
427 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
429 Shared library support for UNIX using GNU libtool.
431 * Modified backend interface. Request/Response struct's replaced by
432 one read/write C struct. For example bend_fetchrequest and
433 bend_fetchresult have been replaced by single bend_fetch_rr struct.
434 Every handler - even search has to be registered in bend_init
435 handler. This means that the YAZ library no longer refers to
436 external functions and it makes it possible to make the whole
437 thing a single DLL/SO.
439 Added Segment handler for backend server.
441 Added Zmbol/Zebra administrative functions to YAZ client.
443 Threaded frontend server on UNIX (when POSIX Threads are available).
444 Starting the server with option -T enables multi-threading.
448 Added configure option --enable-comp/disable-comp to control use
449 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
450 located in sub directory asn.
452 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
453 in ${exec_prefix}/bin along with the other programs yaz-client and
456 GNU automake used to maintain makefiles.
460 Changed retrieval module so that we can load records with no abstract
461 syntax defined. Tagpaths in these records are fully composed of string
464 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
468 On UNIX, the generated makefile now supports a proper 'make install'.
469 The prefix can be set via GNU configure to set the install location
470 (default is /usr/local).
472 * YAZ programs client and ztest were renamed to yaz-client and
473 yaz-ztest to avoid conflicts when users install YAZ in "standard"
474 locations, such as /usr/bin,/usr/local/bin,etc.
476 * YAZ Header files were moved from include to include/yaz. YAZ Header
477 files are referred to as include <yaz/log.h> rather than <log.h>.
478 The YAZ include path (-I ..) is therefore the same as before. Programmers
479 should update their #include statements or use -Ipath/include/yaz
480 instead. The main motivation for doing this change is that YAZ header files
481 can be installed in "standard" locations /usr/include,/usr/local/include
482 without introducing conflicts, since ALL YAZ header files are stored
483 in subdirectory yaz (under /usr/include for example).
485 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
486 rather than project/workspace files. We switched because project files
487 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
490 Changed name of logging function, logf, to yaz_log, to prevent name
491 clash with some math-log functions. The YAZ header log.h defines logf
492 to yaz_log (#define) so there should be no incompatibilities by this
495 Added bend_start/bend_stop handlers for server. These handler are
496 called on start/stop of server. For windows they are called whenever
497 a service is started/stopped.
499 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
500 a fairly small ASN.1 compiler written in Tcl. The compiler is located
501 in util/yc.tcl. The auto-generated C code structures are, in a few
502 cases, incompatible with the old decoders. There are differences in the
503 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
504 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
505 The preprocessor variable ASN_COMPILED is defined when the compiled
506 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
507 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
508 wish to use the old encoders/decoders you can specify --disable-yc
511 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
512 version so that it supports both new - and old version of DB Update
514 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
515 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
516 change. The name parameter can be set to 0 in which no name is specified
517 for the construction. The macros odr_implicit and odr_explicit sets name
518 parameter to zero for the construction involved. New macros
519 odr_implicit_tag and odr_explicit_tag are similar to the others,
520 except that a name parameter is added. For programmers' that don't use
521 ODR they probably only need to change the call to z_APDU and z_External.
523 Added access control facility by interfacing the TCP wrapper library.
524 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
525 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
526 name of the daemon and enables the access control as specified in
527 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
529 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
530 den Dool <H.M.vdnDool@kub.nl>.
532 Added reference ID parameter to most functions in server API - refer
533 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
535 Changed name of ccl library to libccl.a (was ccl.a).
537 Fixed bug in decoder for Explain (Category TargetInfo).
539 Added support for GNU readline in client. Thanks to Jacob Poulsen
540 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
542 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
543 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
544 IMPLEMENTATION! This change was made to the development version before
545 the ZIG decided to retract the amendment. If any users MUST be
546 compatible with the original Update definition, PLEASE CONTACT US, and
547 we will include a separate definition corresponding to the old Update
548 ES. Note that because of the change to the ASN.1 of the
549 TaskPackageRecordStructure we cannot define a single structure that
550 will support both versions.
552 * Added const modifier to buffer parameter for some ODR/BER encoding
553 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
554 completeWAIS, odr_dumpBER.
556 Fixed bug in client.c which caused a crash when a scanResponse didn't
557 contain positionOfTerm.
559 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
560 * will cause an error in a client if a non-YAZ target sends both a
561 * list of Scan entries and non-surrogate diagnostics.
563 Retrieval module enhancements. Tag sets may be typed in the reference
564 to it. From the .abs-file the "tagset" directive takes a third optional
565 integer type for the tag set referenced. From a .tag-file the "include"
566 directive takes a third optional type as well. The old "type" directive
567 in the tag set itself is still recognized but acts as the default type
570 Backend interface change. Individual Scan terms returned from bend_scan
571 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
572 in include/backend.h.
574 Retrieval module enhancements. Multiple tag sets and attribute sets may
575 be specified in abstract syntax specs. Revised the error/warning for
576 logging messages reported by the retrieval module when reading the
579 Object Identifier system (oid_..) changed. The API is backwards
580 compatible but the oid-routines now allocates new OID's when needed.
581 Raw OID's may be specified in oid_getvalbyname.
583 YAZ now uses GNU configure to generate Makefile(s).
585 * Minor changes in some of the member names of DeleteResultSetRequest and
586 DeleteResultSetResponse. See include/proto.h.
588 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
589 and added member 'languages' in TargetInfo (which was missing).
591 Changed the way attribute sets are handled in the retrieval
592 module. These are now cached, just like the abstract syntaxes
595 Changed YAZ so that it links with compiled ASN.1.
597 Added Explain-schema definitions and mapping routines. The following
598 Explain categories have been implemented: AttributeDetails,
599 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
601 Fixed minor bug in Windows version of Server Library.
603 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
605 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
607 Added EXTERNAL: UNIverse Resource Report (non-standard).
609 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
610 ENUMERATED and SET OF.
612 * Added 'const' to some of the char pointer arguments for the
613 functions, data1_read_node, data1_getelementbytagname,
614 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
617 Fixed bug in data1_insert_taggeddata - the last_child member of
618 parent wasn't initialised.
620 * Changed data1_read_record and data1_read_node so that the supplied
621 "SGML"-buffer is read-only. In particular the resulting data1 - tree
622 doesn't refer to any parts of the "SGML"-buffer.
624 Fixed bug in server library (Windows version of statserv_remove).
626 * Changed code so that it compiles as C++. The type definition
627 of Odr_fun which is a member of Odr_arm was changed. The result is,
628 that an explicit typecast is needed for the fun pointer when
629 using Odr_arm - as in:
630 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
632 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
634 Implemented the new structured date and time definition as approved
635 by the ZIG. Added schemaId element to the specificTag in Espec-1
636 (also approved at the last ZIG). Thanks to RVDM.
638 Added some Object identifiers (RVDM).
640 Changed the Update Extended Service (RVDM).
642 Added command "refid" to client which specifies referenceId for
643 the following requests.
645 Implemented extended service handling for server. See ztest.c
646 for an example as well as backend.h. New handlers are registerd
649 * Changed interface for sort in server.
651 Added new members to statserv_options_block. It allows a server
652 to read options from another source than just the command line. Thanks
653 to Charles Woodfield.
655 * Changed definition of Z_Triple in file prt-grs.h - member boolean
656 renamed to zboolean. Some C++ compilers complained about the name.
658 Minor changes to gils.abs. Added index 's' (sort) on title
659 and date/time-last-modified.
663 Fixed bug in server library regarding inetd mode (-i). This bug
664 was introduced by release 1.4.
668 Added sort facility in client and backend server interface.
670 Fixed problem with dependencies in Makefile(s).
672 Fixed bugs for encoders/decoders of extended services and
675 Implemented sub-tree feature for schemas. Sub-trees are
676 referenced in *.abs-files. See explain.abs for an example
677 of the use of this feature.
679 Modified bib1.att; local attributes for ANY didn't include
680 ANY itself (only affects use of the retrieval module).
682 Fixed bug in plain SGML reader in function data1_read_node:
683 tags with prefix "var" was incorrectly interpreted as variants.
685 Added feature "sub-schemas" to enable references to - and definitions
686 of - group of elements.
688 * Removed member parent from type data1_element (in data1.h).
690 Implemented function odr_nullval() that returns the value of
693 * Removed member num_children from data1_node (in data1.h).
695 Made NT service interface part of the server library. The
696 function statserv_main uses the NT service when required and
697 calls the statserv_start / statserv_close routines.
699 Routine zget_SearchRequest and zget_PresentRequest fills
700 resultSetName/Id member with "default" instead of "Default".
702 Fixed memory leak in server. Request queue member wasn't freed.
704 Fixed nmem_exit so that memory is freed.
708 Revised the CCL parser utility to be thread safe.
710 Added function, oid_ent_to_oid, to replace the function
711 oid_getoidbyent, which is not thread safe.
713 * Added nmem_init and nmem_exit to initialize and release
714 NMEM resources. Function nmem_init should be called once in the
715 initial thread before NMEM/ODR is used. statserv.c and client.c
716 have been changed accordingly. The change was necessary to make
717 NMEM thread safe. The NMEM memory pool is shared amongst threads
718 in a process. Unix-based applications will still work fine without
721 Added NT Services interface for the the Z39.50 (statserv) Server.
722 Refer to the ztest.c source on the usage.
724 Windows 95/NT port using MSVC5.0. Project files are included in the
727 * Defined new 'global' handle for the retrieval (data1) system. The
728 new handled, data1_handle, describes the state of the data1 system.
729 This handle is passed as first argument to virtually all
730 data1 related routines. The functions data1_create and data1_destroy
731 creates and destroys a data1 handle respectively.
733 Added ODR encode stream member to all backend request structures
734 init, search, scan etc. This stream should be used to allocate all
735 memory used for the response when thread safe operation is needed.
737 Changed the comstack utility, cs_addstr, to be thread safe. The
738 returned hostname string returned by the function is now part the
741 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
742 function. The cs_straddr takes a COMSTACK handle as argument, so this
743 function must be used after cs_create and before bind/connect.
744 This function is thread safe.
746 Moved test server to 'ztest' directory - generic server code still
747 in 'server' directory.
749 Made prefix query (pquery.c) utility thread safe.
751 Added new function modifier YAZ_EXPORT to 'export' public DLL
752 functions when using windows (see include/yconfig.h).
754 Added definitions to the OID database (util/oid.c) (RVDM).
756 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
758 Added call to ccl_rpn_delete in client program.
760 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
761 release of RPN structure.
763 Added support for C++, headers uses extern "C" for public definitions.
764 With input from RVDM.
766 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
767 Thanks to Ronald van der Meer (RVDM).
769 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
771 Added support for private extensions to the OID database
772 (oid_setprivateoids()). Thanks to RVDM.
774 Added optional, physical ANY (key replication)
776 Fixed null-reference problem in GRS-1 output filter.
778 Proximity operator added to Prefix Query Format (PQF).
780 In test client command "base" accepts multiple databases.
782 Fixed bug in cs_close stack that caused trouble with WINSOCK.
786 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
788 Smallish bug-fixes in the new encoders/decoders (explain).
790 Bug fixed in DeleteRequest.
792 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
794 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
796 Added SOIF syntax (using private OID for now) to retrieval module and client.
798 Added Update extended service.
800 Added SearchResult-1 additional info structure.
802 Added optional CCL (ISO8777) interpreter as separate module. Available
805 --- 1.2 1996/6/10 (1st anniversary release)
807 Added Summary record syntax. Lightly tested.
809 Added OPAC record syntax. Untested.
811 Added ResourceReport service encoders/decoders. Untested.
813 Fixed bug in z_Unit - wrong tagging on unitSystem.
815 Fixed bug in the DiagRecs decoder.
817 Added options for max PDU size and session timeout to frontend-server.
819 Added documentation of query-language parsers and other supporting utilities.
821 [frontend-server] Added Attribute set to the bend_scanrequest API.
823 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
824 surrogate diagnostics were generated.
826 [retrieval] Allow multiple local values for attribute.
828 [retrieval] Allow multiple attributes per element in .abs files. index type.
830 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
834 Minor changes, mostly specific to Zebra's requirements (retrieval)
838 Repaired bug in frontend server when running multiple listening
839 endpoints in dynamic mode.
841 z_External() now won't break if a known, ASN.1 value comes encapsulated
842 in an octet-string. The value will pass through unmodified in an Odr_oct.
844 Added a bit of code to the demo client to decode & display
845 ASN.1-structured records represented in the octet-aligned branch of
846 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
848 Added z_ext_getentbyref() to the ASN module. Doc updated.
850 * Completed the SCAN definition in the ASN module. This may break SCAN
851 code based on older YAZ-versions at compile-time. The fix is easy -
854 * Added 'displayTerm' and OtherInformation to the TermInfo structure
855 under the SCAN definition. Remember to initialize this, server-people.
857 Comstack should now support the WAIS protocol in TCP/IP mode. Note
858 that this does not extend to ODR and ASN.
860 Comstack allows insertion of established socket (primarily for
861 inetd-operation of servers). Doc updated.
863 Front-end server can now start from the inetd in TCP mode. Doc
870 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
871 the rank and record number.
873 Adjustments to the frontend server.
875 Fixed diagnostic BER dumper. It ignored the file argument.
879 Various changes to retrieval module.
881 Changed the union discriminators of the protocol files from enums to
882 ints paired with #defines.
884 *Changed oident.class to oident.oclass to avoid a reserved word in C++
887 *Changed operator in the RPN structure to 'roperator', again to avoid a
890 Fixed problems in Explain decoders/encoders.
894 Memory bug in log module fixed.
898 Occasional malloc() of 0 bytes fixed in d1_espec.c.
900 Bug in Explain DatabaseInfo module fixed.
902 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
906 The shift to v1.0 signals that we now consider the *core* functionality
907 of YAZ reasonably stable (the core being more or less equivalent to
908 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
909 tested (Explain not at all - though that will happen soonish).
911 Minor changes to code to support Windows port.
913 Various minor changes after we're getting to use GRS-1 & co. more.
915 Added Espec-1 format.
917 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
918 of the protocol and it cannot be selected when encoding (maps into 'string'
919 when decoding). Needed to talk to some servers.
921 Demo client can request simple element set names.
923 Added Diagnostic Format encoders/decoders.
925 Added simple Close handling to frontend server (no hooks for resource
926 reporting yet), and demonstration client.
928 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
932 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
933 handled incorrectly when records were requested in the searchResponse. This
934 will only affect you if you use the frontend-server.
936 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
937 Test-client will ask for and print GRS1. Ztest will return dummy records
940 Added Explain encoders/decoders to the service-level API. Untested.
942 Added Extended Services: Item Order encoders and decoders to the Service-
943 level API. Untested. We could use a recent copy of the pertinent bits
944 of the ILL protocol to add those bits.
946 Added diagnostic format 1 encoders/decoders to the service-level API.
949 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
950 odr_cons.c, which causes a more correct output.
952 Fixed handling of searchRequest in frontend server. NextResultSetPosition
953 was always set to 0 when no records were requested in the searchRequest.
955 * Added better external-handling. This shouldn't harm old code that
956 *encodes* externals. It can break code that looks for a
957 'single-ASN1-type' representation, since those types that are known
958 are now decoded immediately. Look at the SUTRS sample code in
959 seshigh.c and client.c. Documentation updated.
961 Handling of structured records in bend_fetchresponse. Length -1 marks
962 structured record, type is deduced from format field.
965 Fairly quick maintenance release to add SUTRS support.
967 Fixed handling of SUTRS records in the demonstration client.
969 * Added format field to the bend_fetchrequest and bend_fetchresponce
970 structures of the backend API (frontend server). When the record is
971 returned, the value of the format field is mapped to an OID. The
972 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
973 of the record. The special value VAL_NONE in the bend_request means
974 that no specific format was requested by the client. Documentation
975 updated accordingly. Test server (ztest) will return a fixed dummy
976 SUTRS record if your client requests SUTRS.
978 Documentation updated accordingly.
980 You can now set external libraries and RANLIB support in the top-level
984 First public release.