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