1 Possible compatibility problems with earlier versions marked with '*'.
3 New ODR utility, odr_getelement, which returns name of element for
4 which encoding/decoding failed.
6 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
7 in cases where a required element was omitted.
9 Bug fix: some MARC8 sequences were not converted.
11 New ZOOM option "step" which specifies number of records to be
12 retrieved in one chunk. Used in conjunction with "start" and "count".
14 SRW support for yaz-client. Use scheme http: to use it, e.g.
17 yaz-client no longer does (un)intelligent character set conversions
18 by default. Can be enabled with charset and marc_charset commands.
20 xmalloc trace fix for 64-bit systems such as DEC alpha.
22 Solaris 2.6 compile fix.
26 New Debian package layout similar to the Redhat Package layout.
28 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
29 and search result respectively.
33 Redhat package is now several packages: libyaz (runtime libraries),
34 libyaz-devel (development and documentation, and yaz (utility programs).
35 Package spec file by Morten Bøgeskov.
37 New member 'schema' in struct bend_fetch_rr which the name of requested
38 schema (SRW/SRU) for record (or NULL if none was given). The fetch
39 handler MAY set this to reflect the schema of the returned record.
41 New member 'display_term' in struct scan_entry. GFS now sets member entries
42 and allocates scan entries to be filled by user scan handler. In previous
43 version, entries member was allocated by the scan handler. That still works,
44 but the GFS will ignore member display_term - assuming it was NOT set by
45 the handler. The fact that the GFS now allocates the entries both allows
46 for new members and makes a scan handler easier to write.
48 Fix CQL lex buffer overflow.
50 SRW/SRU recordPacking. For SRW default recordPacking is string. For
51 SRU default recordPacking is string.
53 SRU protocol support for frontend server.
55 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
57 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
59 Added scan for the ZOOM shell (zoomsh).
63 * String Identifers for Schemas (Amendment 5).
64 http://lcweb.loc.gov/z3950/agency/amend/am5.html
65 Old definition for schema
66 Odr_oid *schema; /* OPT */
71 Z_InternationalString *uri;
72 #define Z_Schema_oid 1
73 #define Z_Schema_uri 2
76 * resultCount parameter to Sort Response (Amendment 1).
77 http://lcweb.loc.gov/z3950/agency/amend/am1.html
79 Support for SRW 1.0 over HTTP. This is an optional feature and
80 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
83 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
84 on the same port. SRW SearchRetrieveRequests are mapped
85 to bend_init,bend_search,bend_fetch,bend_close.
87 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
89 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
90 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
92 ZOOM connections are SRW based if schem http is used for hostname
93 in connect, e.g. z = ZOOM_connection_new("http://myserver");
94 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
96 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
97 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
98 distance=n, order=true/false, relation=le, prox unit=word. If
99 n is omitted, distance 1 is used.
101 Fixed problem with C compiler include path in wrong order.
103 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
104 on Solaris. Patch from Ko van der Sloot.
106 New MARC decode API. All new functions operate on a yaz_marc_t
107 handle. The most important new functions are: yaz_marc_create,
108 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
109 decode and destroy respectively. Decoder can produce formats
110 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
111 include/yaz/marcdisp.h.
113 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
114 to UTF-8, UCS-32, wchar_t or Latin-1.
116 * Prototypes for yaz_iconv_-functions moved to separate header
117 include/yaz/yaz-iconv.h.
119 Make a few private functions 'static' in unix.c. This prevents
120 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
122 For ZOOM connection, the options targetImplementation{Id,Name,Version}
123 are set when Init Response is received.
125 New function ZOOM_connection_error_x similar to ZOOM_connection_error
126 but returns diagnostic set as well.
128 New function yaz_strerror which is a portable wrapper for
129 strerror/strerror_r/GetLastMessage.
131 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
132 is returned for MARC. If type is "oai", then OAI MARC is returned.
134 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
139 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
141 Fix bad race conditions on SIGTERM and terminate gracefully in
144 Move retrieval (data1) module to Zebra since nobody seems to be
147 Add GRS-1 render for ZOOM using same format as yaz-client.
151 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
153 Fix broken ESpec handling in data1 module.
155 SGML reader parses comments and makes them part of the data1 tree.
157 Added several type casts so that YAZ compiles as C++ code.
159 ZOOM didn't handle PDU encoding failures properly.
161 Added more Bib-1 diagnostics (approved extensions).
163 GNU configure: better check for iconv.
165 More portable use of accept, getpeername. Check for socklen_t. Use
166 int/size_t if socklen_t is not defined.
170 PQF parser rejects bad queries - including those with extra
171 characters in them. PQF parser used to silently ignore that.
172 Cleaner API for PQF added, which allows you to get detailed
173 error information for bad queries (see yaz/pquery.h).
175 Fixed bug in ZOOM_record_get for type "database".
177 Implemented mini iconv library supporting conversions between
178 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
180 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
184 Fixed ZOOM C record cache so that preferredRecordSyntax and
185 elementSetName is used to check for already fetched records.
189 Added three members in bend_initrequest structure to facilitate
190 character set negotiation.
192 Fixed a bug in frontend server that could cause indefinite
193 loops under rare conditions.
195 Revised character set utilities (charneg.h) so that encoding
196 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
198 For PQF, directive @term <type> sets term type for Scan/Search.
199 Here <type> is general, string, numeric, null. The term type
200 is inherited - just like @attr.
202 New call odr_set_charset that sets character set conversion for
203 international-strings on a ODR stream. Prototype is:
204 int odr_set_charset(ODR o, const char *to, const char *from);
205 The InternationalString is still represented as C string in YAZ
206 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
207 won't). On the protocol level, you can use any encoding.
209 Support for UNIX sockets in ZOOM.
211 Solaris recv sometimes returns errno == ENOENT. It is treated as
212 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
214 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
215 both client and server. Code by Morten Bøgeskov.
219 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
220 that they can be used directly from Visual Basic. You must recompile
221 your windows APP if you're using ZOOM.
223 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
224 Commands "lang" and "charset" sets language and character set respectively.
225 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
226 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
228 Attributes from multiple CCL fields may be OR'ed rather than merged
229 using directive "@field or". Fields are still merged by default -
230 equivalent to "@field merge".
232 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
235 Fixed bug in zget for parameter ExtendedServicesResponse.
241 Added PQF feature: '@attr type=value' may be written as '@type=value'.
243 Client displays USR.1:SearchResult-1 (hits per term).
245 Additional Search Info for search in Generic Frontend Server.
247 Fixed CCL parsing of "field=s".
249 WIN32 installer - using the excellent NSIS software from nullsoft.
251 Fixed CCL parsing of "field = - <number>".
253 Added function yaz_marc_decode that decodes MARC for line mode
254 display or XML (similar to that used by JZKit).
256 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
257 Z39.50. But ISO/ILL was, however.
259 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
260 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
262 http://lcweb.loc.gov/z3950/agency/amend/am2.html
263 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
267 New YAZ client features: Command completion and new commands:
268 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
269 Code provided by Jacob Poulsen.
271 New call oid_trav, that visits all registered OIDs via callback.
273 Function ZOOM_record_get now returns const char pointer rather than
274 void pointer. It saves a lot of type casts.
276 For YAZ client, command "auth" now allows you to set authentication
277 in IdPass style. It is enabled when three tokens are given - order
278 is user, group and password.
280 Fix memory leaks in MARC record handling for ZOOM.
282 New option for YAZ client, -k <kilobytes> that sets
283 maximum record size. Similar to -k option for generic frontend
284 server and yaz-ztest.
286 More fixes for scan. Non-zero stepSize handled. OID's fixes.
288 Prefix query parser reports "fail" when bad attribute set is given.
290 Fix in MARC decoder. Proximity logging. Fix for attribute set
291 in scan handler for server. Patches by Shigeru Ishida.
293 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
296 Configure option --with-openssl=<dir> now works when a directory is
297 specified. Patch provided by Morten Bøgeskov.
299 New option for YAZ client, -u <auth>, that sets authentication.
301 ZOOM fix: error information was sometimes "missing", since error
302 was cleared/reset too when it shouldn't.
304 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
308 Scan for ZOOM API. New object ZOOM_scanset. New functions
309 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
310 ZOOM_scanset_destroy.
312 New ZOOM function, ZOOM_connection_last_event, that returns type
313 of last event (such as "receive data", "send data", "apdu received",
316 New ZOOM option, schema, that specifies schema for retrieval.
318 New CCL feature. Qualifiers can be aliases for one or more
319 other qualifiers (if more than one is given, OR is used).
321 ZOOM uses named result sets if target supports it.
323 Two new YAZ client commands: . (dot, which sources a script of YAZ
324 client commands), and ! (to execute shell command.). Implemented
327 Working on Debian packages.
331 YAZ client enables named result sets only if target supports it.
333 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
335 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
336 with key="host" to get same result.
338 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
339 Function Z3950_resultset_record(s) returns references to records
340 "owned" by resultset. To become owner use Z3950_record_clone.
342 Function z_ext_record handles Extended Services. Thanks to
347 CCL Parser fix: ignore token comma when dealing with and-lists.
349 Documentation updates for COMSTACK.
351 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
352 Changed prototype Z3950_records. For some functions, int parameters
353 were changed to size_t.
355 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
358 New MARC decode/display function, marc_display_exl, which properly rejects
359 non-ISO2709 records. YAZ client uses it.
363 Fix bug: local attribute set wasn't set correctly in PQF strings.
367 * Old Z39.50 codecs no longer supported.
369 Added ZOOM C binding. See http://zoom.z3950.org/
371 Renamed states for COMSTACKs to avoid confusion with events.
373 Implemented cs_look and proper cs_rcvconnect.
375 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
377 Configure detects POSIX threads on OpenBSD.
379 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
380 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
382 When error is returned from present handler, non-surrogate diagnostic
383 is returned in present response (and fetch handler is no longer called).
385 * Minor adjustments to pquery parser (PQF). Token characters may be
386 escaped by using backslash (C-style).
388 PQF parser allows string attribute values to be specified. For @attr,
389 non-numeric characters after the equal-sign are treated as strings
390 (e.g. @attr 9=title).
392 CCL trunction character may be defined (@truncation in file)
394 * function zget_ExtendedServicesRequest sets waitAction to
395 waitIfPossible (was wait).
397 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
400 CCL operator names may be set in field definition files (CCL_bibset).
401 See ccl/bib1 for an example.
403 Fixes in ASN.1 compiler for C++ compatibility.
405 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
406 and "op_or" to avoid conflict with C++.
408 Fixed problem with GNU readline detection on Redhat 7.0.
410 Added step-size for Scan backend handler.
412 Fixed bug that made the frontend server crash when no attribute
413 set was specified for scan.
415 Front-end server automatically switches to original working directory
416 when installed as an NT service. Previously -w had to be specified to
419 Added extended attributes for retrieval module (data1), so that data1
420 records carry d1_readXML/SGML attributes. d1_read also supports
421 null-data rules ( <tag/>)
423 On UNIX when POSIX threads are available, a separate library libyazthread
424 is created. Programmers should link with that library and the yaz library
425 when using threads. The reason for the split was that some applications
426 on Linux, such as Apache, doesn't work well when using shared objects that
429 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
430 (or any frontend server) in SSL mode by specifying ssl: followed by
431 address. Only tested on UNIX.
433 Added feature for CCL module. Virtual structure s=al or s=ol generates
434 and-list and or-list respectively instead of phrase search.
438 * Added prefix "yaz_" for the functions log_init.., log_file.. and
439 log_mask_str. This was done to avoid name conflicts with other libraries
440 (such as other PHP extensions).
442 Added raw OID member for preferred record syntax (request_format_raw)
443 and returned record syntax (output_format_raw) for backend fetch method.
445 Config file yaz-config now accepts options so that it returns specific
446 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
448 Shared library support for UNIX using GNU libtool.
450 * Modified backend interface. Request/Response struct's replaced by
451 one read/write C struct. For example bend_fetchrequest and
452 bend_fetchresult have been replaced by single bend_fetch_rr struct.
453 Every handler - even search has to be registered in bend_init
454 handler. This means that the YAZ library no longer refers to
455 external functions and it makes it possible to make the whole
456 thing a single DLL/SO.
458 Added Segment handler for backend server.
460 Added Zmbol/Zebra administrative functions to YAZ client.
462 Threaded frontend server on UNIX (when POSIX Threads are available).
463 Starting the server with option -T enables multi-threading.
467 Added configure option --enable-comp/disable-comp to control use
468 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
469 located in sub directory asn.
471 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
472 in ${exec_prefix}/bin along with the other programs yaz-client and
475 GNU automake used to maintain makefiles.
479 Changed retrieval module so that we can load records with no abstract
480 syntax defined. Tagpaths in these records are fully composed of string
483 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
487 On UNIX, the generated makefile now supports a proper 'make install'.
488 The prefix can be set via GNU configure to set the install location
489 (default is /usr/local).
491 * YAZ programs client and ztest were renamed to yaz-client and
492 yaz-ztest to avoid conflicts when users install YAZ in "standard"
493 locations, such as /usr/bin,/usr/local/bin,etc.
495 * YAZ Header files were moved from include to include/yaz. YAZ Header
496 files are referred to as include <yaz/log.h> rather than <log.h>.
497 The YAZ include path (-I ..) is therefore the same as before. Programmers
498 should update their #include statements or use -Ipath/include/yaz
499 instead. The main motivation for doing this change is that YAZ header files
500 can be installed in "standard" locations /usr/include,/usr/local/include
501 without introducing conflicts, since ALL YAZ header files are stored
502 in subdirectory yaz (under /usr/include for example).
504 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
505 rather than project/workspace files. We switched because project files
506 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
509 Changed name of logging function, logf, to yaz_log, to prevent name
510 clash with some math-log functions. The YAZ header log.h defines logf
511 to yaz_log (#define) so there should be no incompatibilities by this
514 Added bend_start/bend_stop handlers for server. These handler are
515 called on start/stop of server. For windows they are called whenever
516 a service is started/stopped.
518 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
519 a fairly small ASN.1 compiler written in Tcl. The compiler is located
520 in util/yc.tcl. The auto-generated C code structures are, in a few
521 cases, incompatible with the old decoders. There are differences in the
522 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
523 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
524 The preprocessor variable ASN_COMPILED is defined when the compiled
525 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
526 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
527 wish to use the old encoders/decoders you can specify --disable-yc
530 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
531 version so that it supports both new - and old version of DB Update
533 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
534 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
535 change. The name parameter can be set to 0 in which no name is specified
536 for the construction. The macros odr_implicit and odr_explicit sets name
537 parameter to zero for the construction involved. New macros
538 odr_implicit_tag and odr_explicit_tag are similar to the others,
539 except that a name parameter is added. For programmers' that don't use
540 ODR they probably only need to change the call to z_APDU and z_External.
542 Added access control facility by interfacing the TCP wrapper library.
543 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
544 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
545 name of the daemon and enables the access control as specified in
546 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
548 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
549 den Dool <H.M.vdnDool@kub.nl>.
551 Added reference ID parameter to most functions in server API - refer
552 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
554 Changed name of ccl library to libccl.a (was ccl.a).
556 Fixed bug in decoder for Explain (Category TargetInfo).
558 Added support for GNU readline in client. Thanks to Jacob Poulsen
559 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
561 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
562 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
563 IMPLEMENTATION! This change was made to the development version before
564 the ZIG decided to retract the amendment. If any users MUST be
565 compatible with the original Update definition, PLEASE CONTACT US, and
566 we will include a separate definition corresponding to the old Update
567 ES. Note that because of the change to the ASN.1 of the
568 TaskPackageRecordStructure we cannot define a single structure that
569 will support both versions.
571 * Added const modifier to buffer parameter for some ODR/BER encoding
572 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
573 completeWAIS, odr_dumpBER.
575 Fixed bug in client.c which caused a crash when a scanResponse didn't
576 contain positionOfTerm.
578 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
579 * will cause an error in a client if a non-YAZ target sends both a
580 * list of Scan entries and non-surrogate diagnostics.
582 Retrieval module enhancements. Tag sets may be typed in the reference
583 to it. From the .abs-file the "tagset" directive takes a third optional
584 integer type for the tag set referenced. From a .tag-file the "include"
585 directive takes a third optional type as well. The old "type" directive
586 in the tag set itself is still recognized but acts as the default type
589 Backend interface change. Individual Scan terms returned from bend_scan
590 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
591 in include/backend.h.
593 Retrieval module enhancements. Multiple tag sets and attribute sets may
594 be specified in abstract syntax specs. Revised the error/warning for
595 logging messages reported by the retrieval module when reading the
598 Object Identifier system (oid_..) changed. The API is backwards
599 compatible but the oid-routines now allocates new OID's when needed.
600 Raw OID's may be specified in oid_getvalbyname.
602 YAZ now uses GNU configure to generate Makefile(s).
604 * Minor changes in some of the member names of DeleteResultSetRequest and
605 DeleteResultSetResponse. See include/proto.h.
607 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
608 and added member 'languages' in TargetInfo (which was missing).
610 Changed the way attribute sets are handled in the retrieval
611 module. These are now cached, just like the abstract syntaxes
614 Changed YAZ so that it links with compiled ASN.1.
616 Added Explain-schema definitions and mapping routines. The following
617 Explain categories have been implemented: AttributeDetails,
618 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
620 Fixed minor bug in Windows version of Server Library.
622 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
624 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
626 Added EXTERNAL: UNIverse Resource Report (non-standard).
628 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
629 ENUMERATED and SET OF.
631 * Added 'const' to some of the char pointer arguments for the
632 functions, data1_read_node, data1_getelementbytagname,
633 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
636 Fixed bug in data1_insert_taggeddata - the last_child member of
637 parent wasn't initialised.
639 * Changed data1_read_record and data1_read_node so that the supplied
640 "SGML"-buffer is read-only. In particular the resulting data1 - tree
641 doesn't refer to any parts of the "SGML"-buffer.
643 Fixed bug in server library (Windows version of statserv_remove).
645 * Changed code so that it compiles as C++. The type definition
646 of Odr_fun which is a member of Odr_arm was changed. The result is,
647 that an explicit typecast is needed for the fun pointer when
648 using Odr_arm - as in:
649 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
651 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
653 Implemented the new structured date and time definition as approved
654 by the ZIG. Added schemaId element to the specificTag in Espec-1
655 (also approved at the last ZIG). Thanks to RVDM.
657 Added some Object identifiers (RVDM).
659 Changed the Update Extended Service (RVDM).
661 Added command "refid" to client which specifies referenceId for
662 the following requests.
664 Implemented extended service handling for server. See ztest.c
665 for an example as well as backend.h. New handlers are registerd
668 * Changed interface for sort in server.
670 Added new members to statserv_options_block. It allows a server
671 to read options from another source than just the command line. Thanks
672 to Charles Woodfield.
674 * Changed definition of Z_Triple in file prt-grs.h - member boolean
675 renamed to zboolean. Some C++ compilers complained about the name.
677 Minor changes to gils.abs. Added index 's' (sort) on title
678 and date/time-last-modified.
682 Fixed bug in server library regarding inetd mode (-i). This bug
683 was introduced by release 1.4.
687 Added sort facility in client and backend server interface.
689 Fixed problem with dependencies in Makefile(s).
691 Fixed bugs for encoders/decoders of extended services and
694 Implemented sub-tree feature for schemas. Sub-trees are
695 referenced in *.abs-files. See explain.abs for an example
696 of the use of this feature.
698 Modified bib1.att; local attributes for ANY didn't include
699 ANY itself (only affects use of the retrieval module).
701 Fixed bug in plain SGML reader in function data1_read_node:
702 tags with prefix "var" was incorrectly interpreted as variants.
704 Added feature "sub-schemas" to enable references to - and definitions
705 of - group of elements.
707 * Removed member parent from type data1_element (in data1.h).
709 Implemented function odr_nullval() that returns the value of
712 * Removed member num_children from data1_node (in data1.h).
714 Made NT service interface part of the server library. The
715 function statserv_main uses the NT service when required and
716 calls the statserv_start / statserv_close routines.
718 Routine zget_SearchRequest and zget_PresentRequest fills
719 resultSetName/Id member with "default" instead of "Default".
721 Fixed memory leak in server. Request queue member wasn't freed.
723 Fixed nmem_exit so that memory is freed.
727 Revised the CCL parser utility to be thread safe.
729 Added function, oid_ent_to_oid, to replace the function
730 oid_getoidbyent, which is not thread safe.
732 * Added nmem_init and nmem_exit to initialize and release
733 NMEM resources. Function nmem_init should be called once in the
734 initial thread before NMEM/ODR is used. statserv.c and client.c
735 have been changed accordingly. The change was necessary to make
736 NMEM thread safe. The NMEM memory pool is shared amongst threads
737 in a process. Unix-based applications will still work fine without
740 Added NT Services interface for the the Z39.50 (statserv) Server.
741 Refer to the ztest.c source on the usage.
743 Windows 95/NT port using MSVC5.0. Project files are included in the
746 * Defined new 'global' handle for the retrieval (data1) system. The
747 new handled, data1_handle, describes the state of the data1 system.
748 This handle is passed as first argument to virtually all
749 data1 related routines. The functions data1_create and data1_destroy
750 creates and destroys a data1 handle respectively.
752 Added ODR encode stream member to all backend request structures
753 init, search, scan etc. This stream should be used to allocate all
754 memory used for the response when thread safe operation is needed.
756 Changed the comstack utility, cs_addstr, to be thread safe. The
757 returned hostname string returned by the function is now part the
760 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
761 function. The cs_straddr takes a COMSTACK handle as argument, so this
762 function must be used after cs_create and before bind/connect.
763 This function is thread safe.
765 Moved test server to 'ztest' directory - generic server code still
766 in 'server' directory.
768 Made prefix query (pquery.c) utility thread safe.
770 Added new function modifier YAZ_EXPORT to 'export' public DLL
771 functions when using windows (see include/yconfig.h).
773 Added definitions to the OID database (util/oid.c) (RVDM).
775 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
777 Added call to ccl_rpn_delete in client program.
779 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
780 release of RPN structure.
782 Added support for C++, headers uses extern "C" for public definitions.
783 With input from RVDM.
785 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
786 Thanks to Ronald van der Meer (RVDM).
788 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
790 Added support for private extensions to the OID database
791 (oid_setprivateoids()). Thanks to RVDM.
793 Added optional, physical ANY (key replication)
795 Fixed null-reference problem in GRS-1 output filter.
797 Proximity operator added to Prefix Query Format (PQF).
799 In test client command "base" accepts multiple databases.
801 Fixed bug in cs_close stack that caused trouble with WINSOCK.
805 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
807 Smallish bug-fixes in the new encoders/decoders (explain).
809 Bug fixed in DeleteRequest.
811 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
813 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
815 Added SOIF syntax (using private OID for now) to retrieval module and client.
817 Added Update extended service.
819 Added SearchResult-1 additional info structure.
821 Added optional CCL (ISO8777) interpreter as separate module. Available
824 --- 1.2 1996/6/10 (1st anniversary release)
826 Added Summary record syntax. Lightly tested.
828 Added OPAC record syntax. Untested.
830 Added ResourceReport service encoders/decoders. Untested.
832 Fixed bug in z_Unit - wrong tagging on unitSystem.
834 Fixed bug in the DiagRecs decoder.
836 Added options for max PDU size and session timeout to frontend-server.
838 Added documentation of query-language parsers and other supporting utilities.
840 [frontend-server] Added Attribute set to the bend_scanrequest API.
842 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
843 surrogate diagnostics were generated.
845 [retrieval] Allow multiple local values for attribute.
847 [retrieval] Allow multiple attributes per element in .abs files. index type.
849 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
853 Minor changes, mostly specific to Zebra's requirements (retrieval)
857 Repaired bug in frontend server when running multiple listening
858 endpoints in dynamic mode.
860 z_External() now won't break if a known, ASN.1 value comes encapsulated
861 in an octet-string. The value will pass through unmodified in an Odr_oct.
863 Added a bit of code to the demo client to decode & display
864 ASN.1-structured records represented in the octet-aligned branch of
865 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
867 Added z_ext_getentbyref() to the ASN module. Doc updated.
869 * Completed the SCAN definition in the ASN module. This may break SCAN
870 code based on older YAZ-versions at compile-time. The fix is easy -
873 * Added 'displayTerm' and OtherInformation to the TermInfo structure
874 under the SCAN definition. Remember to initialize this, server-people.
876 Comstack should now support the WAIS protocol in TCP/IP mode. Note
877 that this does not extend to ODR and ASN.
879 Comstack allows insertion of established socket (primarily for
880 inetd-operation of servers). Doc updated.
882 Front-end server can now start from the inetd in TCP mode. Doc
889 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
890 the rank and record number.
892 Adjustments to the frontend server.
894 Fixed diagnostic BER dumper. It ignored the file argument.
898 Various changes to retrieval module.
900 Changed the union discriminators of the protocol files from enums to
901 ints paired with #defines.
903 *Changed oident.class to oident.oclass to avoid a reserved word in C++
906 *Changed operator in the RPN structure to 'roperator', again to avoid a
909 Fixed problems in Explain decoders/encoders.
913 Memory bug in log module fixed.
917 Occasional malloc() of 0 bytes fixed in d1_espec.c.
919 Bug in Explain DatabaseInfo module fixed.
921 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
925 The shift to v1.0 signals that we now consider the *core* functionality
926 of YAZ reasonably stable (the core being more or less equivalent to
927 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
928 tested (Explain not at all - though that will happen soonish).
930 Minor changes to code to support Windows port.
932 Various minor changes after we're getting to use GRS-1 & co. more.
934 Added Espec-1 format.
936 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
937 of the protocol and it cannot be selected when encoding (maps into 'string'
938 when decoding). Needed to talk to some servers.
940 Demo client can request simple element set names.
942 Added Diagnostic Format encoders/decoders.
944 Added simple Close handling to frontend server (no hooks for resource
945 reporting yet), and demonstration client.
947 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
951 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
952 handled incorrectly when records were requested in the searchResponse. This
953 will only affect you if you use the frontend-server.
955 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
956 Test-client will ask for and print GRS1. Ztest will return dummy records
959 Added Explain encoders/decoders to the service-level API. Untested.
961 Added Extended Services: Item Order encoders and decoders to the Service-
962 level API. Untested. We could use a recent copy of the pertinent bits
963 of the ILL protocol to add those bits.
965 Added diagnostic format 1 encoders/decoders to the service-level API.
968 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
969 odr_cons.c, which causes a more correct output.
971 Fixed handling of searchRequest in frontend server. NextResultSetPosition
972 was always set to 0 when no records were requested in the searchRequest.
974 * Added better external-handling. This shouldn't harm old code that
975 *encodes* externals. It can break code that looks for a
976 'single-ASN1-type' representation, since those types that are known
977 are now decoded immediately. Look at the SUTRS sample code in
978 seshigh.c and client.c. Documentation updated.
980 Handling of structured records in bend_fetchresponse. Length -1 marks
981 structured record, type is deduced from format field.
984 Fairly quick maintenance release to add SUTRS support.
986 Fixed handling of SUTRS records in the demonstration client.
988 * Added format field to the bend_fetchrequest and bend_fetchresponce
989 structures of the backend API (frontend server). When the record is
990 returned, the value of the format field is mapped to an OID. The
991 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
992 of the record. The special value VAL_NONE in the bend_request means
993 that no specific format was requested by the client. Documentation
994 updated accordingly. Test server (ztest) will return a fixed dummy
995 SUTRS record if your client requests SUTRS.
997 Documentation updated accordingly.
999 You can now set external libraries and RANLIB support in the top-level
1003 First public release.