1 Possible compatibility problems with earlier versions marked with '*'.
3 SRW support for yaz-client.
5 yaz-client no longer does (un)intelligent character set conversions
6 by default. Can be enabled with charset and marc_charset commands.
8 xmalloc trace fix for 64-bit systems such as DEC alpha.
10 Solaris 2.6 compile fix.
14 New Debian package layout similar to the Redhat Package layout.
16 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
17 and search result respectively.
21 Redhat package is now several packages: libyaz (runtime libraries),
22 libyaz-devel (development and documentation, and yaz (utility programs).
23 Package spec file by Morten Bøgeskov.
25 New member 'schema' in struct bend_fetch_rr which the name of requested
26 schema (SRW/SRU) for record (or NULL if none was given). The fetch
27 handler MAY set this to reflect the schema of the returned record.
29 New member 'display_term' in struct scan_entry. GFS now sets member entries
30 and allocates scan entries to be filled by user scan handler. In previous
31 version, entries member was allocated by the scan handler. That still works,
32 but the GFS will ignore member display_term - assuming it was NOT set by
33 the handler. The fact that the GFS now allocates the entries both allows
34 for new members and makes a scan handler easier to write.
36 Fix CQL lex buffer overflow.
38 SRW/SRU recordPacking. For SRW default recordPacking is string. For
39 SRU default recordPacking is string.
41 SRU protocol support for frontend server.
43 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
45 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
47 Added scan for the ZOOM shell (zoomsh).
51 * String Identifers for Schemas (Amendment 5).
52 http://lcweb.loc.gov/z3950/agency/amend/am5.html
53 Old definition for schema
54 Odr_oid *schema; /* OPT */
59 Z_InternationalString *uri;
60 #define Z_Schema_oid 1
61 #define Z_Schema_uri 2
64 * resultCount parameter to Sort Response (Amendment 1).
65 http://lcweb.loc.gov/z3950/agency/amend/am1.html
67 Support for SRW 1.0 over HTTP. This is an optional feature and
68 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
71 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
72 on the same port. SRW SearchRetrieveRequests are mapped
73 to bend_init,bend_search,bend_fetch,bend_close.
75 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
77 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
78 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
80 ZOOM connections are SRW based if schem http is used for hostname
81 in connect, e.g. z = ZOOM_connection_new("http://myserver");
82 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
84 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
85 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
86 distance=n, order=true/false, relation=le, prox unit=word. If
87 n is omitted, distance 1 is used.
89 Fixed problem with C compiler include path in wrong order.
91 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
92 on Solaris. Patch from Ko van der Sloot.
94 New MARC decode API. All new functions operate on a yaz_marc_t
95 handle. The most important new functions are: yaz_marc_create,
96 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
97 decode and destroy respectively. Decoder can produce formats
98 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
99 include/yaz/marcdisp.h.
101 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
102 to UTF-8, UCS-32, wchar_t or Latin-1.
104 * Prototypes for yaz_iconv_-functions moved to separate header
105 include/yaz/yaz-iconv.h.
107 Make a few private functions 'static' in unix.c. This prevents
108 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
110 For ZOOM connection, the options targetImplementation{Id,Name,Version}
111 are set when Init Response is received.
113 New function ZOOM_connection_error_x similar to ZOOM_connection_error
114 but returns diagnostic set as well.
116 New function yaz_strerror which is a portable wrapper for
117 strerror/strerror_r/GetLastMessage.
119 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
120 is returned for MARC. If type is "oai", then OAI MARC is returned.
122 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
127 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
129 Fix bad race conditions on SIGTERM and terminate gracefully in
132 Move retrieval (data1) module to Zebra since nobody seems to be
135 Add GRS-1 render for ZOOM using same format as yaz-client.
139 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
141 Fix broken ESpec handling in data1 module.
143 SGML reader parses comments and makes them part of the data1 tree.
145 Added several type casts so that YAZ compiles as C++ code.
147 ZOOM didn't handle PDU encoding failures properly.
149 Added more Bib-1 diagnostics (approved extensions).
151 GNU configure: better check for iconv.
153 More portable use of accept, getpeername. Check for socklen_t. Use
154 int/size_t if socklen_t is not defined.
158 PQF parser rejects bad queries - including those with extra
159 characters in them. PQF parser used to silently ignore that.
160 Cleaner API for PQF added, which allows you to get detailed
161 error information for bad queries (see yaz/pquery.h).
163 Fixed bug in ZOOM_record_get for type "database".
165 Implemented mini iconv library supporting conversions between
166 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
168 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
172 Fixed ZOOM C record cache so that preferredRecordSyntax and
173 elementSetName is used to check for already fetched records.
177 Added three members in bend_initrequest structure to facilitate
178 character set negotiation.
180 Fixed a bug in frontend server that could cause indefinite
181 loops under rare conditions.
183 Revised character set utilities (charneg.h) so that encoding
184 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
186 For PQF, directive @term <type> sets term type for Scan/Search.
187 Here <type> is general, string, numeric, null. The term type
188 is inherited - just like @attr.
190 New call odr_set_charset that sets character set conversion for
191 international-strings on a ODR stream. Prototype is:
192 int odr_set_charset(ODR o, const char *to, const char *from);
193 The InternationalString is still represented as C string in YAZ
194 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
195 won't). On the protocol level, you can use any encoding.
197 Support for UNIX sockets in ZOOM.
199 Solaris recv sometimes returns errno == ENOENT. It is treated as
200 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
202 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
203 both client and server. Code by Morten Bøgeskov.
207 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
208 that they can be used directly from Visual Basic. You must recompile
209 your windows APP if you're using ZOOM.
211 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
212 Commands "lang" and "charset" sets language and character set respectively.
213 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
214 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
216 Attributes from multiple CCL fields may be OR'ed rather than merged
217 using directive "@field or". Fields are still merged by default -
218 equivalent to "@field merge".
220 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
223 Fixed bug in zget for parameter ExtendedServicesResponse.
229 Added PQF feature: '@attr type=value' may be written as '@type=value'.
231 Client displays USR.1:SearchResult-1 (hits per term).
233 Additional Search Info for search in Generic Frontend Server.
235 Fixed CCL parsing of "field=s".
237 WIN32 installer - using the excellent NSIS software from nullsoft.
239 Fixed CCL parsing of "field = - <number>".
241 Added function yaz_marc_decode that decodes MARC for line mode
242 display or XML (similar to that used by JZKit).
244 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
245 Z39.50. But ISO/ILL was, however.
247 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
248 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
250 http://lcweb.loc.gov/z3950/agency/amend/am2.html
251 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
255 New YAZ client features: Command completion and new commands:
256 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
257 Code provided by Jacob Poulsen.
259 New call oid_trav, that visits all registered OIDs via callback.
261 Function ZOOM_record_get now returns const char pointer rather than
262 void pointer. It saves a lot of type casts.
264 For YAZ client, command "auth" now allows you to set authentication
265 in IdPass style. It is enabled when three tokens are given - order
266 is user, group and password.
268 Fix memory leaks in MARC record handling for ZOOM.
270 New option for YAZ client, -k <kilobytes> that sets
271 maximum record size. Similar to -k option for generic frontend
272 server and yaz-ztest.
274 More fixes for scan. Non-zero stepSize handled. OID's fixes.
276 Prefix query parser reports "fail" when bad attribute set is given.
278 Fix in MARC decoder. Proximity logging. Fix for attribute set
279 in scan handler for server. Patches by Shigeru Ishida.
281 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
284 Configure option --with-openssl=<dir> now works when a directory is
285 specified. Patch provided by Morten Bøgeskov.
287 New option for YAZ client, -u <auth>, that sets authentication.
289 ZOOM fix: error information was sometimes "missing", since error
290 was cleared/reset too when it shouldn't.
292 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
296 Scan for ZOOM API. New object ZOOM_scanset. New functions
297 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
298 ZOOM_scanset_destroy.
300 New ZOOM function, ZOOM_connection_last_event, that returns type
301 of last event (such as "receive data", "send data", "apdu received",
304 New ZOOM option, schema, that specifies schema for retrieval.
306 New CCL feature. Qualifiers can be aliases for one or more
307 other qualifiers (if more than one is given, OR is used).
309 ZOOM uses named result sets if target supports it.
311 Two new YAZ client commands: . (dot, which sources a script of YAZ
312 client commands), and ! (to execute shell command.). Implemented
315 Working on Debian packages.
319 YAZ client enables named result sets only if target supports it.
321 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
323 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
324 with key="host" to get same result.
326 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
327 Function Z3950_resultset_record(s) returns references to records
328 "owned" by resultset. To become owner use Z3950_record_clone.
330 Function z_ext_record handles Extended Services. Thanks to
335 CCL Parser fix: ignore token comma when dealing with and-lists.
337 Documentation updates for COMSTACK.
339 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
340 Changed prototype Z3950_records. For some functions, int parameters
341 were changed to size_t.
343 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
346 New MARC decode/display function, marc_display_exl, which properly rejects
347 non-ISO2709 records. YAZ client uses it.
351 Fix bug: local attribute set wasn't set correctly in PQF strings.
355 * Old Z39.50 codecs no longer supported.
357 Added ZOOM C binding. See http://zoom.z3950.org/
359 Renamed states for COMSTACKs to avoid confusion with events.
361 Implemented cs_look and proper cs_rcvconnect.
363 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
365 Configure detects POSIX threads on OpenBSD.
367 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
368 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
370 When error is returned from present handler, non-surrogate diagnostic
371 is returned in present response (and fetch handler is no longer called).
373 * Minor adjustments to pquery parser (PQF). Token characters may be
374 escaped by using backslash (C-style).
376 PQF parser allows string attribute values to be specified. For @attr,
377 non-numeric characters after the equal-sign are treated as strings
378 (e.g. @attr 9=title).
380 CCL trunction character may be defined (@truncation in file)
382 * function zget_ExtendedServicesRequest sets waitAction to
383 waitIfPossible (was wait).
385 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
388 CCL operator names may be set in field definition files (CCL_bibset).
389 See ccl/bib1 for an example.
391 Fixes in ASN.1 compiler for C++ compatibility.
393 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
394 and "op_or" to avoid conflict with C++.
396 Fixed problem with GNU readline detection on Redhat 7.0.
398 Added step-size for Scan backend handler.
400 Fixed bug that made the frontend server crash when no attribute
401 set was specified for scan.
403 Front-end server automatically switches to original working directory
404 when installed as an NT service. Previously -w had to be specified to
407 Added extended attributes for retrieval module (data1), so that data1
408 records carry d1_readXML/SGML attributes. d1_read also supports
409 null-data rules ( <tag/>)
411 On UNIX when POSIX threads are available, a separate library libyazthread
412 is created. Programmers should link with that library and the yaz library
413 when using threads. The reason for the split was that some applications
414 on Linux, such as Apache, doesn't work well when using shared objects that
417 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
418 (or any frontend server) in SSL mode by specifying ssl: followed by
419 address. Only tested on UNIX.
421 Added feature for CCL module. Virtual structure s=al or s=ol generates
422 and-list and or-list respectively instead of phrase search.
426 * Added prefix "yaz_" for the functions log_init.., log_file.. and
427 log_mask_str. This was done to avoid name conflicts with other libraries
428 (such as other PHP extensions).
430 Added raw OID member for preferred record syntax (request_format_raw)
431 and returned record syntax (output_format_raw) for backend fetch method.
433 Config file yaz-config now accepts options so that it returns specific
434 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
436 Shared library support for UNIX using GNU libtool.
438 * Modified backend interface. Request/Response struct's replaced by
439 one read/write C struct. For example bend_fetchrequest and
440 bend_fetchresult have been replaced by single bend_fetch_rr struct.
441 Every handler - even search has to be registered in bend_init
442 handler. This means that the YAZ library no longer refers to
443 external functions and it makes it possible to make the whole
444 thing a single DLL/SO.
446 Added Segment handler for backend server.
448 Added Zmbol/Zebra administrative functions to YAZ client.
450 Threaded frontend server on UNIX (when POSIX Threads are available).
451 Starting the server with option -T enables multi-threading.
455 Added configure option --enable-comp/disable-comp to control use
456 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
457 located in sub directory asn.
459 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
460 in ${exec_prefix}/bin along with the other programs yaz-client and
463 GNU automake used to maintain makefiles.
467 Changed retrieval module so that we can load records with no abstract
468 syntax defined. Tagpaths in these records are fully composed of string
471 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
475 On UNIX, the generated makefile now supports a proper 'make install'.
476 The prefix can be set via GNU configure to set the install location
477 (default is /usr/local).
479 * YAZ programs client and ztest were renamed to yaz-client and
480 yaz-ztest to avoid conflicts when users install YAZ in "standard"
481 locations, such as /usr/bin,/usr/local/bin,etc.
483 * YAZ Header files were moved from include to include/yaz. YAZ Header
484 files are referred to as include <yaz/log.h> rather than <log.h>.
485 The YAZ include path (-I ..) is therefore the same as before. Programmers
486 should update their #include statements or use -Ipath/include/yaz
487 instead. The main motivation for doing this change is that YAZ header files
488 can be installed in "standard" locations /usr/include,/usr/local/include
489 without introducing conflicts, since ALL YAZ header files are stored
490 in subdirectory yaz (under /usr/include for example).
492 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
493 rather than project/workspace files. We switched because project files
494 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
497 Changed name of logging function, logf, to yaz_log, to prevent name
498 clash with some math-log functions. The YAZ header log.h defines logf
499 to yaz_log (#define) so there should be no incompatibilities by this
502 Added bend_start/bend_stop handlers for server. These handler are
503 called on start/stop of server. For windows they are called whenever
504 a service is started/stopped.
506 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
507 a fairly small ASN.1 compiler written in Tcl. The compiler is located
508 in util/yc.tcl. The auto-generated C code structures are, in a few
509 cases, incompatible with the old decoders. There are differences in the
510 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
511 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
512 The preprocessor variable ASN_COMPILED is defined when the compiled
513 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
514 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
515 wish to use the old encoders/decoders you can specify --disable-yc
518 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
519 version so that it supports both new - and old version of DB Update
521 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
522 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
523 change. The name parameter can be set to 0 in which no name is specified
524 for the construction. The macros odr_implicit and odr_explicit sets name
525 parameter to zero for the construction involved. New macros
526 odr_implicit_tag and odr_explicit_tag are similar to the others,
527 except that a name parameter is added. For programmers' that don't use
528 ODR they probably only need to change the call to z_APDU and z_External.
530 Added access control facility by interfacing the TCP wrapper library.
531 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
532 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
533 name of the daemon and enables the access control as specified in
534 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
536 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
537 den Dool <H.M.vdnDool@kub.nl>.
539 Added reference ID parameter to most functions in server API - refer
540 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
542 Changed name of ccl library to libccl.a (was ccl.a).
544 Fixed bug in decoder for Explain (Category TargetInfo).
546 Added support for GNU readline in client. Thanks to Jacob Poulsen
547 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
549 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
550 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
551 IMPLEMENTATION! This change was made to the development version before
552 the ZIG decided to retract the amendment. If any users MUST be
553 compatible with the original Update definition, PLEASE CONTACT US, and
554 we will include a separate definition corresponding to the old Update
555 ES. Note that because of the change to the ASN.1 of the
556 TaskPackageRecordStructure we cannot define a single structure that
557 will support both versions.
559 * Added const modifier to buffer parameter for some ODR/BER encoding
560 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
561 completeWAIS, odr_dumpBER.
563 Fixed bug in client.c which caused a crash when a scanResponse didn't
564 contain positionOfTerm.
566 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
567 * will cause an error in a client if a non-YAZ target sends both a
568 * list of Scan entries and non-surrogate diagnostics.
570 Retrieval module enhancements. Tag sets may be typed in the reference
571 to it. From the .abs-file the "tagset" directive takes a third optional
572 integer type for the tag set referenced. From a .tag-file the "include"
573 directive takes a third optional type as well. The old "type" directive
574 in the tag set itself is still recognized but acts as the default type
577 Backend interface change. Individual Scan terms returned from bend_scan
578 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
579 in include/backend.h.
581 Retrieval module enhancements. Multiple tag sets and attribute sets may
582 be specified in abstract syntax specs. Revised the error/warning for
583 logging messages reported by the retrieval module when reading the
586 Object Identifier system (oid_..) changed. The API is backwards
587 compatible but the oid-routines now allocates new OID's when needed.
588 Raw OID's may be specified in oid_getvalbyname.
590 YAZ now uses GNU configure to generate Makefile(s).
592 * Minor changes in some of the member names of DeleteResultSetRequest and
593 DeleteResultSetResponse. See include/proto.h.
595 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
596 and added member 'languages' in TargetInfo (which was missing).
598 Changed the way attribute sets are handled in the retrieval
599 module. These are now cached, just like the abstract syntaxes
602 Changed YAZ so that it links with compiled ASN.1.
604 Added Explain-schema definitions and mapping routines. The following
605 Explain categories have been implemented: AttributeDetails,
606 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
608 Fixed minor bug in Windows version of Server Library.
610 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
612 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
614 Added EXTERNAL: UNIverse Resource Report (non-standard).
616 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
617 ENUMERATED and SET OF.
619 * Added 'const' to some of the char pointer arguments for the
620 functions, data1_read_node, data1_getelementbytagname,
621 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
624 Fixed bug in data1_insert_taggeddata - the last_child member of
625 parent wasn't initialised.
627 * Changed data1_read_record and data1_read_node so that the supplied
628 "SGML"-buffer is read-only. In particular the resulting data1 - tree
629 doesn't refer to any parts of the "SGML"-buffer.
631 Fixed bug in server library (Windows version of statserv_remove).
633 * Changed code so that it compiles as C++. The type definition
634 of Odr_fun which is a member of Odr_arm was changed. The result is,
635 that an explicit typecast is needed for the fun pointer when
636 using Odr_arm - as in:
637 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
639 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
641 Implemented the new structured date and time definition as approved
642 by the ZIG. Added schemaId element to the specificTag in Espec-1
643 (also approved at the last ZIG). Thanks to RVDM.
645 Added some Object identifiers (RVDM).
647 Changed the Update Extended Service (RVDM).
649 Added command "refid" to client which specifies referenceId for
650 the following requests.
652 Implemented extended service handling for server. See ztest.c
653 for an example as well as backend.h. New handlers are registerd
656 * Changed interface for sort in server.
658 Added new members to statserv_options_block. It allows a server
659 to read options from another source than just the command line. Thanks
660 to Charles Woodfield.
662 * Changed definition of Z_Triple in file prt-grs.h - member boolean
663 renamed to zboolean. Some C++ compilers complained about the name.
665 Minor changes to gils.abs. Added index 's' (sort) on title
666 and date/time-last-modified.
670 Fixed bug in server library regarding inetd mode (-i). This bug
671 was introduced by release 1.4.
675 Added sort facility in client and backend server interface.
677 Fixed problem with dependencies in Makefile(s).
679 Fixed bugs for encoders/decoders of extended services and
682 Implemented sub-tree feature for schemas. Sub-trees are
683 referenced in *.abs-files. See explain.abs for an example
684 of the use of this feature.
686 Modified bib1.att; local attributes for ANY didn't include
687 ANY itself (only affects use of the retrieval module).
689 Fixed bug in plain SGML reader in function data1_read_node:
690 tags with prefix "var" was incorrectly interpreted as variants.
692 Added feature "sub-schemas" to enable references to - and definitions
693 of - group of elements.
695 * Removed member parent from type data1_element (in data1.h).
697 Implemented function odr_nullval() that returns the value of
700 * Removed member num_children from data1_node (in data1.h).
702 Made NT service interface part of the server library. The
703 function statserv_main uses the NT service when required and
704 calls the statserv_start / statserv_close routines.
706 Routine zget_SearchRequest and zget_PresentRequest fills
707 resultSetName/Id member with "default" instead of "Default".
709 Fixed memory leak in server. Request queue member wasn't freed.
711 Fixed nmem_exit so that memory is freed.
715 Revised the CCL parser utility to be thread safe.
717 Added function, oid_ent_to_oid, to replace the function
718 oid_getoidbyent, which is not thread safe.
720 * Added nmem_init and nmem_exit to initialize and release
721 NMEM resources. Function nmem_init should be called once in the
722 initial thread before NMEM/ODR is used. statserv.c and client.c
723 have been changed accordingly. The change was necessary to make
724 NMEM thread safe. The NMEM memory pool is shared amongst threads
725 in a process. Unix-based applications will still work fine without
728 Added NT Services interface for the the Z39.50 (statserv) Server.
729 Refer to the ztest.c source on the usage.
731 Windows 95/NT port using MSVC5.0. Project files are included in the
734 * Defined new 'global' handle for the retrieval (data1) system. The
735 new handled, data1_handle, describes the state of the data1 system.
736 This handle is passed as first argument to virtually all
737 data1 related routines. The functions data1_create and data1_destroy
738 creates and destroys a data1 handle respectively.
740 Added ODR encode stream member to all backend request structures
741 init, search, scan etc. This stream should be used to allocate all
742 memory used for the response when thread safe operation is needed.
744 Changed the comstack utility, cs_addstr, to be thread safe. The
745 returned hostname string returned by the function is now part the
748 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
749 function. The cs_straddr takes a COMSTACK handle as argument, so this
750 function must be used after cs_create and before bind/connect.
751 This function is thread safe.
753 Moved test server to 'ztest' directory - generic server code still
754 in 'server' directory.
756 Made prefix query (pquery.c) utility thread safe.
758 Added new function modifier YAZ_EXPORT to 'export' public DLL
759 functions when using windows (see include/yconfig.h).
761 Added definitions to the OID database (util/oid.c) (RVDM).
763 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
765 Added call to ccl_rpn_delete in client program.
767 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
768 release of RPN structure.
770 Added support for C++, headers uses extern "C" for public definitions.
771 With input from RVDM.
773 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
774 Thanks to Ronald van der Meer (RVDM).
776 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
778 Added support for private extensions to the OID database
779 (oid_setprivateoids()). Thanks to RVDM.
781 Added optional, physical ANY (key replication)
783 Fixed null-reference problem in GRS-1 output filter.
785 Proximity operator added to Prefix Query Format (PQF).
787 In test client command "base" accepts multiple databases.
789 Fixed bug in cs_close stack that caused trouble with WINSOCK.
793 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
795 Smallish bug-fixes in the new encoders/decoders (explain).
797 Bug fixed in DeleteRequest.
799 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
801 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
803 Added SOIF syntax (using private OID for now) to retrieval module and client.
805 Added Update extended service.
807 Added SearchResult-1 additional info structure.
809 Added optional CCL (ISO8777) interpreter as separate module. Available
812 --- 1.2 1996/6/10 (1st anniversary release)
814 Added Summary record syntax. Lightly tested.
816 Added OPAC record syntax. Untested.
818 Added ResourceReport service encoders/decoders. Untested.
820 Fixed bug in z_Unit - wrong tagging on unitSystem.
822 Fixed bug in the DiagRecs decoder.
824 Added options for max PDU size and session timeout to frontend-server.
826 Added documentation of query-language parsers and other supporting utilities.
828 [frontend-server] Added Attribute set to the bend_scanrequest API.
830 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
831 surrogate diagnostics were generated.
833 [retrieval] Allow multiple local values for attribute.
835 [retrieval] Allow multiple attributes per element in .abs files. index type.
837 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
841 Minor changes, mostly specific to Zebra's requirements (retrieval)
845 Repaired bug in frontend server when running multiple listening
846 endpoints in dynamic mode.
848 z_External() now won't break if a known, ASN.1 value comes encapsulated
849 in an octet-string. The value will pass through unmodified in an Odr_oct.
851 Added a bit of code to the demo client to decode & display
852 ASN.1-structured records represented in the octet-aligned branch of
853 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
855 Added z_ext_getentbyref() to the ASN module. Doc updated.
857 * Completed the SCAN definition in the ASN module. This may break SCAN
858 code based on older YAZ-versions at compile-time. The fix is easy -
861 * Added 'displayTerm' and OtherInformation to the TermInfo structure
862 under the SCAN definition. Remember to initialize this, server-people.
864 Comstack should now support the WAIS protocol in TCP/IP mode. Note
865 that this does not extend to ODR and ASN.
867 Comstack allows insertion of established socket (primarily for
868 inetd-operation of servers). Doc updated.
870 Front-end server can now start from the inetd in TCP mode. Doc
877 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
878 the rank and record number.
880 Adjustments to the frontend server.
882 Fixed diagnostic BER dumper. It ignored the file argument.
886 Various changes to retrieval module.
888 Changed the union discriminators of the protocol files from enums to
889 ints paired with #defines.
891 *Changed oident.class to oident.oclass to avoid a reserved word in C++
894 *Changed operator in the RPN structure to 'roperator', again to avoid a
897 Fixed problems in Explain decoders/encoders.
901 Memory bug in log module fixed.
905 Occasional malloc() of 0 bytes fixed in d1_espec.c.
907 Bug in Explain DatabaseInfo module fixed.
909 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
913 The shift to v1.0 signals that we now consider the *core* functionality
914 of YAZ reasonably stable (the core being more or less equivalent to
915 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
916 tested (Explain not at all - though that will happen soonish).
918 Minor changes to code to support Windows port.
920 Various minor changes after we're getting to use GRS-1 & co. more.
922 Added Espec-1 format.
924 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
925 of the protocol and it cannot be selected when encoding (maps into 'string'
926 when decoding). Needed to talk to some servers.
928 Demo client can request simple element set names.
930 Added Diagnostic Format encoders/decoders.
932 Added simple Close handling to frontend server (no hooks for resource
933 reporting yet), and demonstration client.
935 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
939 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
940 handled incorrectly when records were requested in the searchResponse. This
941 will only affect you if you use the frontend-server.
943 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
944 Test-client will ask for and print GRS1. Ztest will return dummy records
947 Added Explain encoders/decoders to the service-level API. Untested.
949 Added Extended Services: Item Order encoders and decoders to the Service-
950 level API. Untested. We could use a recent copy of the pertinent bits
951 of the ILL protocol to add those bits.
953 Added diagnostic format 1 encoders/decoders to the service-level API.
956 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
957 odr_cons.c, which causes a more correct output.
959 Fixed handling of searchRequest in frontend server. NextResultSetPosition
960 was always set to 0 when no records were requested in the searchRequest.
962 * Added better external-handling. This shouldn't harm old code that
963 *encodes* externals. It can break code that looks for a
964 'single-ASN1-type' representation, since those types that are known
965 are now decoded immediately. Look at the SUTRS sample code in
966 seshigh.c and client.c. Documentation updated.
968 Handling of structured records in bend_fetchresponse. Length -1 marks
969 structured record, type is deduced from format field.
972 Fairly quick maintenance release to add SUTRS support.
974 Fixed handling of SUTRS records in the demonstration client.
976 * Added format field to the bend_fetchrequest and bend_fetchresponce
977 structures of the backend API (frontend server). When the record is
978 returned, the value of the format field is mapped to an OID. The
979 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
980 of the record. The special value VAL_NONE in the bend_request means
981 that no specific format was requested by the client. Documentation
982 updated accordingly. Test server (ztest) will return a fixed dummy
983 SUTRS record if your client requests SUTRS.
985 Documentation updated accordingly.
987 You can now set external libraries and RANLIB support in the top-level
991 First public release.