1 Possible compatibility problems with earlier versions marked with '*'.
3 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
5 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
7 Added scan for the ZOOM shell (zoomsh).
11 * String Identifers for Schemas (Amendment 5).
12 http://lcweb.loc.gov/z3950/agency/amend/am5.html
13 Old definition for schema
14 Odr_oid *schema; /* OPT */
19 Z_InternationalString *uri;
20 #define Z_Schema_oid 1
21 #define Z_Schema_uri 2
24 * resultCount parameter to Sort Response (Amendment 1).
25 http://lcweb.loc.gov/z3950/agency/amend/am1.html
27 Support for SRW 1.0 over HTTP. This is an optional feature and
28 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
31 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
32 on the same port. SRW SearchRetrieveRequests are mapped
33 to bend_init,bend_search,bend_fetch,bend_close.
35 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
37 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
38 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
40 ZOOM connections are SRW based if schem http is used for hostname
41 in connect, e.g. z = ZOOM_connection_new("http://myserver");
42 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
44 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
45 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
46 distance=n, order=true/false, relation=le, prox unit=word. If
47 n is omitted, distance 1 is used.
49 Fixed problem with C compiler include path in wrong order.
51 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
52 on Solaris. Patch from Ko van der Sloot.
54 New MARC decode API. All new functions operate on a yaz_marc_t
55 handle. The most important new functions are: yaz_marc_create,
56 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
57 decode and destroy respectively. Decoder can produce formats
58 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
59 include/yaz/marcdisp.h.
61 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
62 to UTF-8, UCS-32, wchar_t or Latin-1.
64 * Prototypes for yaz_iconv_-functions moved to separate header
65 include/yaz/yaz-iconv.h.
67 Make a few private functions 'static' in unix.c. This prevents
68 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
70 For ZOOM connection, the options targetImplementation{Id,Name,Version}
71 are set when Init Response is received.
73 New function ZOOM_connection_error_x similar to ZOOM_connection_error
74 but returns diagnostic set as well.
76 New function yaz_strerror which is a portable wrapper for
77 strerror/strerror_r/GetLastMessage.
79 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
80 is returned for MARC. If type is "oai", then OAI MARC is returned.
82 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
87 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
89 Fix bad race conditions on SIGTERM and terminate gracefully in
92 Move retrieval (data1) module to Zebra since nobody seems to be
95 Add GRS-1 render for ZOOM using same format as yaz-client.
99 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
101 Fix broken ESpec handling in data1 module.
103 SGML reader parses comments and makes them part of the data1 tree.
105 Added several type casts so that YAZ compiles as C++ code.
107 ZOOM didn't handle PDU encoding failures properly.
109 Added more Bib-1 diagnostics (approved extensions).
111 GNU configure: better check for iconv.
113 More portable use of accept, getpeername. Check for socklen_t. Use
114 int/size_t if socklen_t is not defined.
118 PQF parser rejects bad queries - including those with extra
119 characters in them. PQF parser used to silently ignore that.
120 Cleaner API for PQF added, which allows you to get detailed
121 error information for bad queries (see yaz/pquery.h).
123 Fixed bug in ZOOM_record_get for type "database".
125 Implemented mini iconv library supporting conversions between
126 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
128 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
132 Fixed ZOOM C record cache so that preferredRecordSyntax and
133 elementSetName is used to check for already fetched records.
137 Added three members in bend_initrequest structure to facilitate
138 character set negotiation.
140 Fixed a bug in frontend server that could cause indefinite
141 loops under rare conditions.
143 Revised character set utilities (charneg.h) so that encoding
144 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
146 For PQF, directive @term <type> sets term type for Scan/Search.
147 Here <type> is general, string, numeric, null. The term type
148 is inherited - just like @attr.
150 New call odr_set_charset that sets character set conversion for
151 international-strings on a ODR stream. Prototype is:
152 int odr_set_charset(ODR o, const char *to, const char *from);
153 The InternationalString is still represented as C string in YAZ
154 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
155 won't). On the protocol level, you can use any encoding.
157 Support for UNIX sockets in ZOOM.
159 Solaris recv sometimes returns errno == ENOENT. It is treated as
160 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
162 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
163 both client and server. Code by Morten Bøgeskov.
167 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
168 that they can be used directly from Visual Basic. You must recompile
169 your windows APP if you're using ZOOM.
171 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
172 Commands "lang" and "charset" sets language and character set respectively.
173 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
174 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
176 Attributes from multiple CCL fields may be OR'ed rather than merged
177 using directive "@field or". Fields are still merged by default -
178 equivalent to "@field merge".
180 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
183 Fixed bug in zget for parameter ExtendedServicesResponse.
189 Added PQF feature: '@attr type=value' may be written as '@type=value'.
191 Client displays USR.1:SearchResult-1 (hits per term).
193 Additional Search Info for search in Generic Frontend Server.
195 Fixed CCL parsing of "field=s".
197 WIN32 installer - using the excellent NSIS software from nullsoft.
199 Fixed CCL parsing of "field = - <number>".
201 Added function yaz_marc_decode that decodes MARC for line mode
202 display or XML (similar to that used by JZKit).
204 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
205 Z39.50. But ISO/ILL was, however.
207 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
208 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
210 http://lcweb.loc.gov/z3950/agency/amend/am2.html
211 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
215 New YAZ client features: Command completion and new commands:
216 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
217 Code provided by Jacob Poulsen.
219 New call oid_trav, that visits all registered OIDs via callback.
221 Function ZOOM_record_get now returns const char pointer rather than
222 void pointer. It saves a lot of type casts.
224 For YAZ client, command "auth" now allows you to set authentication
225 in IdPass style. It is enabled when three tokens are given - order
226 is user, group and password.
228 Fix memory leaks in MARC record handling for ZOOM.
230 New option for YAZ client, -k <kilobytes> that sets
231 maximum record size. Similar to -k option for generic frontend
232 server and yaz-ztest.
234 More fixes for scan. Non-zero stepSize handled. OID's fixes.
236 Prefix query parser reports "fail" when bad attribute set is given.
238 Fix in MARC decoder. Proximity logging. Fix for attribute set
239 in scan handler for server. Patches by Shigeru Ishida.
241 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
244 Configure option --with-openssl=<dir> now works when a directory is
245 specified. Patch provided by Morten Bøgeskov.
247 New option for YAZ client, -u <auth>, that sets authentication.
249 ZOOM fix: error information was sometimes "missing", since error
250 was cleared/reset too when it shouldn't.
252 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
256 Scan for ZOOM API. New object ZOOM_scanset. New functions
257 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
258 ZOOM_scanset_destroy.
260 New ZOOM function, ZOOM_connection_last_event, that returns type
261 of last event (such as "receive data", "send data", "apdu received",
264 New ZOOM option, schema, that specifies schema for retrieval.
266 New CCL feature. Qualifiers can be aliases for one or more
267 other qualifiers (if more than one is given, OR is used).
269 ZOOM uses named result sets if target supports it.
271 Two new YAZ client commands: . (dot, which sources a script of YAZ
272 client commands), and ! (to execute shell command.). Implemented
275 Working on Debian packages.
279 YAZ client enables named result sets only if target supports it.
281 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
283 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
284 with key="host" to get same result.
286 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
287 Function Z3950_resultset_record(s) returns references to records
288 "owned" by resultset. To become owner use Z3950_record_clone.
290 Function z_ext_record handles Extended Services. Thanks to
295 CCL Parser fix: ignore token comma when dealing with and-lists.
297 Documentation updates for COMSTACK.
299 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
300 Changed prototype Z3950_records. For some functions, int parameters
301 were changed to size_t.
303 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
306 New MARC decode/display function, marc_display_exl, which properly rejects
307 non-ISO2709 records. YAZ client uses it.
311 Fix bug: local attribute set wasn't set correctly in PQF strings.
315 * Old Z39.50 codecs no longer supported.
317 Added ZOOM C binding. See http://zoom.z3950.org/
319 Renamed states for COMSTACKs to avoid confusion with events.
321 Implemented cs_look and proper cs_rcvconnect.
323 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
325 Configure detects POSIX threads on OpenBSD.
327 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
328 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
330 When error is returned from present handler, non-surrogate diagnostic
331 is returned in present response (and fetch handler is no longer called).
333 * Minor adjustments to pquery parser (PQF). Token characters may be
334 escaped by using backslash (C-style).
336 PQF parser allows string attribute values to be specified. For @attr,
337 non-numeric characters after the equal-sign are treated as strings
338 (e.g. @attr 9=title).
340 CCL trunction character may be defined (@truncation in file)
342 * function zget_ExtendedServicesRequest sets waitAction to
343 waitIfPossible (was wait).
345 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
348 CCL operator names may be set in field definition files (CCL_bibset).
349 See ccl/bib1 for an example.
351 Fixes in ASN.1 compiler for C++ compatibility.
353 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
354 and "op_or" to avoid conflict with C++.
356 Fixed problem with GNU readline detection on Redhat 7.0.
358 Added step-size for Scan backend handler.
360 Fixed bug that made the frontend server crash when no attribute
361 set was specified for scan.
363 Front-end server automatically switches to original working directory
364 when installed as an NT service. Previously -w had to be specified to
367 Added extended attributes for retrieval module (data1), so that data1
368 records carry d1_readXML/SGML attributes. d1_read also supports
369 null-data rules ( <tag/>)
371 On UNIX when POSIX threads are available, a separate library libyazthread
372 is created. Programmers should link with that library and the yaz library
373 when using threads. The reason for the split was that some applications
374 on Linux, such as Apache, doesn't work well when using shared objects that
377 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
378 (or any frontend server) in SSL mode by specifying ssl: followed by
379 address. Only tested on UNIX.
381 Added feature for CCL module. Virtual structure s=al or s=ol generates
382 and-list and or-list respectively instead of phrase search.
386 * Added prefix "yaz_" for the functions log_init.., log_file.. and
387 log_mask_str. This was done to avoid name conflicts with other libraries
388 (such as other PHP extensions).
390 Added raw OID member for preferred record syntax (request_format_raw)
391 and returned record syntax (output_format_raw) for backend fetch method.
393 Config file yaz-config now accepts options so that it returns specific
394 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
396 Shared library support for UNIX using GNU libtool.
398 * Modified backend interface. Request/Response struct's replaced by
399 one read/write C struct. For example bend_fetchrequest and
400 bend_fetchresult have been replaced by single bend_fetch_rr struct.
401 Every handler - even search has to be registered in bend_init
402 handler. This means that the YAZ library no longer refers to
403 external functions and it makes it possible to make the whole
404 thing a single DLL/SO.
406 Added Segment handler for backend server.
408 Added Zmbol/Zebra administrative functions to YAZ client.
410 Threaded frontend server on UNIX (when POSIX Threads are available).
411 Starting the server with option -T enables multi-threading.
415 Added configure option --enable-comp/disable-comp to control use
416 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
417 located in sub directory asn.
419 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
420 in ${exec_prefix}/bin along with the other programs yaz-client and
423 GNU automake used to maintain makefiles.
427 Changed retrieval module so that we can load records with no abstract
428 syntax defined. Tagpaths in these records are fully composed of string
431 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
435 On UNIX, the generated makefile now supports a proper 'make install'.
436 The prefix can be set via GNU configure to set the install location
437 (default is /usr/local).
439 * YAZ programs client and ztest were renamed to yaz-client and
440 yaz-ztest to avoid conflicts when users install YAZ in "standard"
441 locations, such as /usr/bin,/usr/local/bin,etc.
443 * YAZ Header files were moved from include to include/yaz. YAZ Header
444 files are referred to as include <yaz/log.h> rather than <log.h>.
445 The YAZ include path (-I ..) is therefore the same as before. Programmers
446 should update their #include statements or use -Ipath/include/yaz
447 instead. The main motivation for doing this change is that YAZ header files
448 can be installed in "standard" locations /usr/include,/usr/local/include
449 without introducing conflicts, since ALL YAZ header files are stored
450 in subdirectory yaz (under /usr/include for example).
452 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
453 rather than project/workspace files. We switched because project files
454 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
457 Changed name of logging function, logf, to yaz_log, to prevent name
458 clash with some math-log functions. The YAZ header log.h defines logf
459 to yaz_log (#define) so there should be no incompatibilities by this
462 Added bend_start/bend_stop handlers for server. These handler are
463 called on start/stop of server. For windows they are called whenever
464 a service is started/stopped.
466 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
467 a fairly small ASN.1 compiler written in Tcl. The compiler is located
468 in util/yc.tcl. The auto-generated C code structures are, in a few
469 cases, incompatible with the old decoders. There are differences in the
470 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
471 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
472 The preprocessor variable ASN_COMPILED is defined when the compiled
473 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
474 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
475 wish to use the old encoders/decoders you can specify --disable-yc
478 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
479 version so that it supports both new - and old version of DB Update
481 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
482 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
483 change. The name parameter can be set to 0 in which no name is specified
484 for the construction. The macros odr_implicit and odr_explicit sets name
485 parameter to zero for the construction involved. New macros
486 odr_implicit_tag and odr_explicit_tag are similar to the others,
487 except that a name parameter is added. For programmers' that don't use
488 ODR they probably only need to change the call to z_APDU and z_External.
490 Added access control facility by interfacing the TCP wrapper library.
491 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
492 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
493 name of the daemon and enables the access control as specified in
494 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
496 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
497 den Dool <H.M.vdnDool@kub.nl>.
499 Added reference ID parameter to most functions in server API - refer
500 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
502 Changed name of ccl library to libccl.a (was ccl.a).
504 Fixed bug in decoder for Explain (Category TargetInfo).
506 Added support for GNU readline in client. Thanks to Jacob Poulsen
507 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
509 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
510 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
511 IMPLEMENTATION! This change was made to the development version before
512 the ZIG decided to retract the amendment. If any users MUST be
513 compatible with the original Update definition, PLEASE CONTACT US, and
514 we will include a separate definition corresponding to the old Update
515 ES. Note that because of the change to the ASN.1 of the
516 TaskPackageRecordStructure we cannot define a single structure that
517 will support both versions.
519 * Added const modifier to buffer parameter for some ODR/BER encoding
520 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
521 completeWAIS, odr_dumpBER.
523 Fixed bug in client.c which caused a crash when a scanResponse didn't
524 contain positionOfTerm.
526 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
527 * will cause an error in a client if a non-YAZ target sends both a
528 * list of Scan entries and non-surrogate diagnostics.
530 Retrieval module enhancements. Tag sets may be typed in the reference
531 to it. From the .abs-file the "tagset" directive takes a third optional
532 integer type for the tag set referenced. From a .tag-file the "include"
533 directive takes a third optional type as well. The old "type" directive
534 in the tag set itself is still recognized but acts as the default type
537 Backend interface change. Individual Scan terms returned from bend_scan
538 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
539 in include/backend.h.
541 Retrieval module enhancements. Multiple tag sets and attribute sets may
542 be specified in abstract syntax specs. Revised the error/warning for
543 logging messages reported by the retrieval module when reading the
546 Object Identifier system (oid_..) changed. The API is backwards
547 compatible but the oid-routines now allocates new OID's when needed.
548 Raw OID's may be specified in oid_getvalbyname.
550 YAZ now uses GNU configure to generate Makefile(s).
552 * Minor changes in some of the member names of DeleteResultSetRequest and
553 DeleteResultSetResponse. See include/proto.h.
555 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
556 and added member 'languages' in TargetInfo (which was missing).
558 Changed the way attribute sets are handled in the retrieval
559 module. These are now cached, just like the abstract syntaxes
562 Changed YAZ so that it links with compiled ASN.1.
564 Added Explain-schema definitions and mapping routines. The following
565 Explain categories have been implemented: AttributeDetails,
566 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
568 Fixed minor bug in Windows version of Server Library.
570 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
572 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
574 Added EXTERNAL: UNIverse Resource Report (non-standard).
576 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
577 ENUMERATED and SET OF.
579 * Added 'const' to some of the char pointer arguments for the
580 functions, data1_read_node, data1_getelementbytagname,
581 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
584 Fixed bug in data1_insert_taggeddata - the last_child member of
585 parent wasn't initialised.
587 * Changed data1_read_record and data1_read_node so that the supplied
588 "SGML"-buffer is read-only. In particular the resulting data1 - tree
589 doesn't refer to any parts of the "SGML"-buffer.
591 Fixed bug in server library (Windows version of statserv_remove).
593 * Changed code so that it compiles as C++. The type definition
594 of Odr_fun which is a member of Odr_arm was changed. The result is,
595 that an explicit typecast is needed for the fun pointer when
596 using Odr_arm - as in:
597 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
599 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
601 Implemented the new structured date and time definition as approved
602 by the ZIG. Added schemaId element to the specificTag in Espec-1
603 (also approved at the last ZIG). Thanks to RVDM.
605 Added some Object identifiers (RVDM).
607 Changed the Update Extended Service (RVDM).
609 Added command "refid" to client which specifies referenceId for
610 the following requests.
612 Implemented extended service handling for server. See ztest.c
613 for an example as well as backend.h. New handlers are registerd
616 * Changed interface for sort in server.
618 Added new members to statserv_options_block. It allows a server
619 to read options from another source than just the command line. Thanks
620 to Charles Woodfield.
622 * Changed definition of Z_Triple in file prt-grs.h - member boolean
623 renamed to zboolean. Some C++ compilers complained about the name.
625 Minor changes to gils.abs. Added index 's' (sort) on title
626 and date/time-last-modified.
630 Fixed bug in server library regarding inetd mode (-i). This bug
631 was introduced by release 1.4.
635 Added sort facility in client and backend server interface.
637 Fixed problem with dependencies in Makefile(s).
639 Fixed bugs for encoders/decoders of extended services and
642 Implemented sub-tree feature for schemas. Sub-trees are
643 referenced in *.abs-files. See explain.abs for an example
644 of the use of this feature.
646 Modified bib1.att; local attributes for ANY didn't include
647 ANY itself (only affects use of the retrieval module).
649 Fixed bug in plain SGML reader in function data1_read_node:
650 tags with prefix "var" was incorrectly interpreted as variants.
652 Added feature "sub-schemas" to enable references to - and definitions
653 of - group of elements.
655 * Removed member parent from type data1_element (in data1.h).
657 Implemented function odr_nullval() that returns the value of
660 * Removed member num_children from data1_node (in data1.h).
662 Made NT service interface part of the server library. The
663 function statserv_main uses the NT service when required and
664 calls the statserv_start / statserv_close routines.
666 Routine zget_SearchRequest and zget_PresentRequest fills
667 resultSetName/Id member with "default" instead of "Default".
669 Fixed memory leak in server. Request queue member wasn't freed.
671 Fixed nmem_exit so that memory is freed.
675 Revised the CCL parser utility to be thread safe.
677 Added function, oid_ent_to_oid, to replace the function
678 oid_getoidbyent, which is not thread safe.
680 * Added nmem_init and nmem_exit to initialize and release
681 NMEM resources. Function nmem_init should be called once in the
682 initial thread before NMEM/ODR is used. statserv.c and client.c
683 have been changed accordingly. The change was necessary to make
684 NMEM thread safe. The NMEM memory pool is shared amongst threads
685 in a process. Unix-based applications will still work fine without
688 Added NT Services interface for the the Z39.50 (statserv) Server.
689 Refer to the ztest.c source on the usage.
691 Windows 95/NT port using MSVC5.0. Project files are included in the
694 * Defined new 'global' handle for the retrieval (data1) system. The
695 new handled, data1_handle, describes the state of the data1 system.
696 This handle is passed as first argument to virtually all
697 data1 related routines. The functions data1_create and data1_destroy
698 creates and destroys a data1 handle respectively.
700 Added ODR encode stream member to all backend request structures
701 init, search, scan etc. This stream should be used to allocate all
702 memory used for the response when thread safe operation is needed.
704 Changed the comstack utility, cs_addstr, to be thread safe. The
705 returned hostname string returned by the function is now part the
708 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
709 function. The cs_straddr takes a COMSTACK handle as argument, so this
710 function must be used after cs_create and before bind/connect.
711 This function is thread safe.
713 Moved test server to 'ztest' directory - generic server code still
714 in 'server' directory.
716 Made prefix query (pquery.c) utility thread safe.
718 Added new function modifier YAZ_EXPORT to 'export' public DLL
719 functions when using windows (see include/yconfig.h).
721 Added definitions to the OID database (util/oid.c) (RVDM).
723 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
725 Added call to ccl_rpn_delete in client program.
727 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
728 release of RPN structure.
730 Added support for C++, headers uses extern "C" for public definitions.
731 With input from RVDM.
733 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
734 Thanks to Ronald van der Meer (RVDM).
736 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
738 Added support for private extensions to the OID database
739 (oid_setprivateoids()). Thanks to RVDM.
741 Added optional, physical ANY (key replication)
743 Fixed null-reference problem in GRS-1 output filter.
745 Proximity operator added to Prefix Query Format (PQF).
747 In test client command "base" accepts multiple databases.
749 Fixed bug in cs_close stack that caused trouble with WINSOCK.
753 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
755 Smallish bug-fixes in the new encoders/decoders (explain).
757 Bug fixed in DeleteRequest.
759 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
761 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
763 Added SOIF syntax (using private OID for now) to retrieval module and client.
765 Added Update extended service.
767 Added SearchResult-1 additional info structure.
769 Added optional CCL (ISO8777) interpreter as separate module. Available
772 --- 1.2 1996/6/10 (1st anniversary release)
774 Added Summary record syntax. Lightly tested.
776 Added OPAC record syntax. Untested.
778 Added ResourceReport service encoders/decoders. Untested.
780 Fixed bug in z_Unit - wrong tagging on unitSystem.
782 Fixed bug in the DiagRecs decoder.
784 Added options for max PDU size and session timeout to frontend-server.
786 Added documentation of query-language parsers and other supporting utilities.
788 [frontend-server] Added Attribute set to the bend_scanrequest API.
790 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
791 surrogate diagnostics were generated.
793 [retrieval] Allow multiple local values for attribute.
795 [retrieval] Allow multiple attributes per element in .abs files. index type.
797 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
801 Minor changes, mostly specific to Zebra's requirements (retrieval)
805 Repaired bug in frontend server when running multiple listening
806 endpoints in dynamic mode.
808 z_External() now won't break if a known, ASN.1 value comes encapsulated
809 in an octet-string. The value will pass through unmodified in an Odr_oct.
811 Added a bit of code to the demo client to decode & display
812 ASN.1-structured records represented in the octet-aligned branch of
813 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
815 Added z_ext_getentbyref() to the ASN module. Doc updated.
817 * Completed the SCAN definition in the ASN module. This may break SCAN
818 code based on older YAZ-versions at compile-time. The fix is easy -
821 * Added 'displayTerm' and OtherInformation to the TermInfo structure
822 under the SCAN definition. Remember to initialize this, server-people.
824 Comstack should now support the WAIS protocol in TCP/IP mode. Note
825 that this does not extend to ODR and ASN.
827 Comstack allows insertion of established socket (primarily for
828 inetd-operation of servers). Doc updated.
830 Front-end server can now start from the inetd in TCP mode. Doc
837 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
838 the rank and record number.
840 Adjustments to the frontend server.
842 Fixed diagnostic BER dumper. It ignored the file argument.
846 Various changes to retrieval module.
848 Changed the union discriminators of the protocol files from enums to
849 ints paired with #defines.
851 *Changed oident.class to oident.oclass to avoid a reserved word in C++
854 *Changed operator in the RPN structure to 'roperator', again to avoid a
857 Fixed problems in Explain decoders/encoders.
861 Memory bug in log module fixed.
865 Occasional malloc() of 0 bytes fixed in d1_espec.c.
867 Bug in Explain DatabaseInfo module fixed.
869 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
873 The shift to v1.0 signals that we now consider the *core* functionality
874 of YAZ reasonably stable (the core being more or less equivalent to
875 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
876 tested (Explain not at all - though that will happen soonish).
878 Minor changes to code to support Windows port.
880 Various minor changes after we're getting to use GRS-1 & co. more.
882 Added Espec-1 format.
884 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
885 of the protocol and it cannot be selected when encoding (maps into 'string'
886 when decoding). Needed to talk to some servers.
888 Demo client can request simple element set names.
890 Added Diagnostic Format encoders/decoders.
892 Added simple Close handling to frontend server (no hooks for resource
893 reporting yet), and demonstration client.
895 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
899 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
900 handled incorrectly when records were requested in the searchResponse. This
901 will only affect you if you use the frontend-server.
903 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
904 Test-client will ask for and print GRS1. Ztest will return dummy records
907 Added Explain encoders/decoders to the service-level API. Untested.
909 Added Extended Services: Item Order encoders and decoders to the Service-
910 level API. Untested. We could use a recent copy of the pertinent bits
911 of the ILL protocol to add those bits.
913 Added diagnostic format 1 encoders/decoders to the service-level API.
916 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
917 odr_cons.c, which causes a more correct output.
919 Fixed handling of searchRequest in frontend server. NextResultSetPosition
920 was always set to 0 when no records were requested in the searchRequest.
922 * Added better external-handling. This shouldn't harm old code that
923 *encodes* externals. It can break code that looks for a
924 'single-ASN1-type' representation, since those types that are known
925 are now decoded immediately. Look at the SUTRS sample code in
926 seshigh.c and client.c. Documentation updated.
928 Handling of structured records in bend_fetchresponse. Length -1 marks
929 structured record, type is deduced from format field.
932 Fairly quick maintenance release to add SUTRS support.
934 Fixed handling of SUTRS records in the demonstration client.
936 * Added format field to the bend_fetchrequest and bend_fetchresponce
937 structures of the backend API (frontend server). When the record is
938 returned, the value of the format field is mapped to an OID. The
939 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
940 of the record. The special value VAL_NONE in the bend_request means
941 that no specific format was requested by the client. Documentation
942 updated accordingly. Test server (ztest) will return a fixed dummy
943 SUTRS record if your client requests SUTRS.
945 Documentation updated accordingly.
947 You can now set external libraries and RANLIB support in the top-level
951 First public release.