1 Possible compatibility problems with earlier versions marked with '*'.
3 Fix CQL lex buffer overflow.
5 SRW/SRU recordPacking. For SRW default recordPacking is string. For
6 SRU default recordPacking is string.
8 SRU protocol support for frontend server.
10 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
12 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
14 Added scan for the ZOOM shell (zoomsh).
18 * String Identifers for Schemas (Amendment 5).
19 http://lcweb.loc.gov/z3950/agency/amend/am5.html
20 Old definition for schema
21 Odr_oid *schema; /* OPT */
26 Z_InternationalString *uri;
27 #define Z_Schema_oid 1
28 #define Z_Schema_uri 2
31 * resultCount parameter to Sort Response (Amendment 1).
32 http://lcweb.loc.gov/z3950/agency/amend/am1.html
34 Support for SRW 1.0 over HTTP. This is an optional feature and
35 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
38 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
39 on the same port. SRW SearchRetrieveRequests are mapped
40 to bend_init,bend_search,bend_fetch,bend_close.
42 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
44 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
45 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
47 ZOOM connections are SRW based if schem http is used for hostname
48 in connect, e.g. z = ZOOM_connection_new("http://myserver");
49 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
51 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
52 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
53 distance=n, order=true/false, relation=le, prox unit=word. If
54 n is omitted, distance 1 is used.
56 Fixed problem with C compiler include path in wrong order.
58 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
59 on Solaris. Patch from Ko van der Sloot.
61 New MARC decode API. All new functions operate on a yaz_marc_t
62 handle. The most important new functions are: yaz_marc_create,
63 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
64 decode and destroy respectively. Decoder can produce formats
65 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
66 include/yaz/marcdisp.h.
68 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
69 to UTF-8, UCS-32, wchar_t or Latin-1.
71 * Prototypes for yaz_iconv_-functions moved to separate header
72 include/yaz/yaz-iconv.h.
74 Make a few private functions 'static' in unix.c. This prevents
75 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
77 For ZOOM connection, the options targetImplementation{Id,Name,Version}
78 are set when Init Response is received.
80 New function ZOOM_connection_error_x similar to ZOOM_connection_error
81 but returns diagnostic set as well.
83 New function yaz_strerror which is a portable wrapper for
84 strerror/strerror_r/GetLastMessage.
86 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
87 is returned for MARC. If type is "oai", then OAI MARC is returned.
89 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
94 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
96 Fix bad race conditions on SIGTERM and terminate gracefully in
99 Move retrieval (data1) module to Zebra since nobody seems to be
102 Add GRS-1 render for ZOOM using same format as yaz-client.
106 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
108 Fix broken ESpec handling in data1 module.
110 SGML reader parses comments and makes them part of the data1 tree.
112 Added several type casts so that YAZ compiles as C++ code.
114 ZOOM didn't handle PDU encoding failures properly.
116 Added more Bib-1 diagnostics (approved extensions).
118 GNU configure: better check for iconv.
120 More portable use of accept, getpeername. Check for socklen_t. Use
121 int/size_t if socklen_t is not defined.
125 PQF parser rejects bad queries - including those with extra
126 characters in them. PQF parser used to silently ignore that.
127 Cleaner API for PQF added, which allows you to get detailed
128 error information for bad queries (see yaz/pquery.h).
130 Fixed bug in ZOOM_record_get for type "database".
132 Implemented mini iconv library supporting conversions between
133 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
135 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
139 Fixed ZOOM C record cache so that preferredRecordSyntax and
140 elementSetName is used to check for already fetched records.
144 Added three members in bend_initrequest structure to facilitate
145 character set negotiation.
147 Fixed a bug in frontend server that could cause indefinite
148 loops under rare conditions.
150 Revised character set utilities (charneg.h) so that encoding
151 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
153 For PQF, directive @term <type> sets term type for Scan/Search.
154 Here <type> is general, string, numeric, null. The term type
155 is inherited - just like @attr.
157 New call odr_set_charset that sets character set conversion for
158 international-strings on a ODR stream. Prototype is:
159 int odr_set_charset(ODR o, const char *to, const char *from);
160 The InternationalString is still represented as C string in YAZ
161 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
162 won't). On the protocol level, you can use any encoding.
164 Support for UNIX sockets in ZOOM.
166 Solaris recv sometimes returns errno == ENOENT. It is treated as
167 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
169 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
170 both client and server. Code by Morten Bøgeskov.
174 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
175 that they can be used directly from Visual Basic. You must recompile
176 your windows APP if you're using ZOOM.
178 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
179 Commands "lang" and "charset" sets language and character set respectively.
180 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
181 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
183 Attributes from multiple CCL fields may be OR'ed rather than merged
184 using directive "@field or". Fields are still merged by default -
185 equivalent to "@field merge".
187 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
190 Fixed bug in zget for parameter ExtendedServicesResponse.
196 Added PQF feature: '@attr type=value' may be written as '@type=value'.
198 Client displays USR.1:SearchResult-1 (hits per term).
200 Additional Search Info for search in Generic Frontend Server.
202 Fixed CCL parsing of "field=s".
204 WIN32 installer - using the excellent NSIS software from nullsoft.
206 Fixed CCL parsing of "field = - <number>".
208 Added function yaz_marc_decode that decodes MARC for line mode
209 display or XML (similar to that used by JZKit).
211 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
212 Z39.50. But ISO/ILL was, however.
214 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
215 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
217 http://lcweb.loc.gov/z3950/agency/amend/am2.html
218 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
222 New YAZ client features: Command completion and new commands:
223 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
224 Code provided by Jacob Poulsen.
226 New call oid_trav, that visits all registered OIDs via callback.
228 Function ZOOM_record_get now returns const char pointer rather than
229 void pointer. It saves a lot of type casts.
231 For YAZ client, command "auth" now allows you to set authentication
232 in IdPass style. It is enabled when three tokens are given - order
233 is user, group and password.
235 Fix memory leaks in MARC record handling for ZOOM.
237 New option for YAZ client, -k <kilobytes> that sets
238 maximum record size. Similar to -k option for generic frontend
239 server and yaz-ztest.
241 More fixes for scan. Non-zero stepSize handled. OID's fixes.
243 Prefix query parser reports "fail" when bad attribute set is given.
245 Fix in MARC decoder. Proximity logging. Fix for attribute set
246 in scan handler for server. Patches by Shigeru Ishida.
248 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
251 Configure option --with-openssl=<dir> now works when a directory is
252 specified. Patch provided by Morten Bøgeskov.
254 New option for YAZ client, -u <auth>, that sets authentication.
256 ZOOM fix: error information was sometimes "missing", since error
257 was cleared/reset too when it shouldn't.
259 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
263 Scan for ZOOM API. New object ZOOM_scanset. New functions
264 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
265 ZOOM_scanset_destroy.
267 New ZOOM function, ZOOM_connection_last_event, that returns type
268 of last event (such as "receive data", "send data", "apdu received",
271 New ZOOM option, schema, that specifies schema for retrieval.
273 New CCL feature. Qualifiers can be aliases for one or more
274 other qualifiers (if more than one is given, OR is used).
276 ZOOM uses named result sets if target supports it.
278 Two new YAZ client commands: . (dot, which sources a script of YAZ
279 client commands), and ! (to execute shell command.). Implemented
282 Working on Debian packages.
286 YAZ client enables named result sets only if target supports it.
288 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
290 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
291 with key="host" to get same result.
293 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
294 Function Z3950_resultset_record(s) returns references to records
295 "owned" by resultset. To become owner use Z3950_record_clone.
297 Function z_ext_record handles Extended Services. Thanks to
302 CCL Parser fix: ignore token comma when dealing with and-lists.
304 Documentation updates for COMSTACK.
306 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
307 Changed prototype Z3950_records. For some functions, int parameters
308 were changed to size_t.
310 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
313 New MARC decode/display function, marc_display_exl, which properly rejects
314 non-ISO2709 records. YAZ client uses it.
318 Fix bug: local attribute set wasn't set correctly in PQF strings.
322 * Old Z39.50 codecs no longer supported.
324 Added ZOOM C binding. See http://zoom.z3950.org/
326 Renamed states for COMSTACKs to avoid confusion with events.
328 Implemented cs_look and proper cs_rcvconnect.
330 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
332 Configure detects POSIX threads on OpenBSD.
334 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
335 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
337 When error is returned from present handler, non-surrogate diagnostic
338 is returned in present response (and fetch handler is no longer called).
340 * Minor adjustments to pquery parser (PQF). Token characters may be
341 escaped by using backslash (C-style).
343 PQF parser allows string attribute values to be specified. For @attr,
344 non-numeric characters after the equal-sign are treated as strings
345 (e.g. @attr 9=title).
347 CCL trunction character may be defined (@truncation in file)
349 * function zget_ExtendedServicesRequest sets waitAction to
350 waitIfPossible (was wait).
352 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
355 CCL operator names may be set in field definition files (CCL_bibset).
356 See ccl/bib1 for an example.
358 Fixes in ASN.1 compiler for C++ compatibility.
360 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
361 and "op_or" to avoid conflict with C++.
363 Fixed problem with GNU readline detection on Redhat 7.0.
365 Added step-size for Scan backend handler.
367 Fixed bug that made the frontend server crash when no attribute
368 set was specified for scan.
370 Front-end server automatically switches to original working directory
371 when installed as an NT service. Previously -w had to be specified to
374 Added extended attributes for retrieval module (data1), so that data1
375 records carry d1_readXML/SGML attributes. d1_read also supports
376 null-data rules ( <tag/>)
378 On UNIX when POSIX threads are available, a separate library libyazthread
379 is created. Programmers should link with that library and the yaz library
380 when using threads. The reason for the split was that some applications
381 on Linux, such as Apache, doesn't work well when using shared objects that
384 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
385 (or any frontend server) in SSL mode by specifying ssl: followed by
386 address. Only tested on UNIX.
388 Added feature for CCL module. Virtual structure s=al or s=ol generates
389 and-list and or-list respectively instead of phrase search.
393 * Added prefix "yaz_" for the functions log_init.., log_file.. and
394 log_mask_str. This was done to avoid name conflicts with other libraries
395 (such as other PHP extensions).
397 Added raw OID member for preferred record syntax (request_format_raw)
398 and returned record syntax (output_format_raw) for backend fetch method.
400 Config file yaz-config now accepts options so that it returns specific
401 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
403 Shared library support for UNIX using GNU libtool.
405 * Modified backend interface. Request/Response struct's replaced by
406 one read/write C struct. For example bend_fetchrequest and
407 bend_fetchresult have been replaced by single bend_fetch_rr struct.
408 Every handler - even search has to be registered in bend_init
409 handler. This means that the YAZ library no longer refers to
410 external functions and it makes it possible to make the whole
411 thing a single DLL/SO.
413 Added Segment handler for backend server.
415 Added Zmbol/Zebra administrative functions to YAZ client.
417 Threaded frontend server on UNIX (when POSIX Threads are available).
418 Starting the server with option -T enables multi-threading.
422 Added configure option --enable-comp/disable-comp to control use
423 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
424 located in sub directory asn.
426 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
427 in ${exec_prefix}/bin along with the other programs yaz-client and
430 GNU automake used to maintain makefiles.
434 Changed retrieval module so that we can load records with no abstract
435 syntax defined. Tagpaths in these records are fully composed of string
438 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
442 On UNIX, the generated makefile now supports a proper 'make install'.
443 The prefix can be set via GNU configure to set the install location
444 (default is /usr/local).
446 * YAZ programs client and ztest were renamed to yaz-client and
447 yaz-ztest to avoid conflicts when users install YAZ in "standard"
448 locations, such as /usr/bin,/usr/local/bin,etc.
450 * YAZ Header files were moved from include to include/yaz. YAZ Header
451 files are referred to as include <yaz/log.h> rather than <log.h>.
452 The YAZ include path (-I ..) is therefore the same as before. Programmers
453 should update their #include statements or use -Ipath/include/yaz
454 instead. The main motivation for doing this change is that YAZ header files
455 can be installed in "standard" locations /usr/include,/usr/local/include
456 without introducing conflicts, since ALL YAZ header files are stored
457 in subdirectory yaz (under /usr/include for example).
459 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
460 rather than project/workspace files. We switched because project files
461 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
464 Changed name of logging function, logf, to yaz_log, to prevent name
465 clash with some math-log functions. The YAZ header log.h defines logf
466 to yaz_log (#define) so there should be no incompatibilities by this
469 Added bend_start/bend_stop handlers for server. These handler are
470 called on start/stop of server. For windows they are called whenever
471 a service is started/stopped.
473 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
474 a fairly small ASN.1 compiler written in Tcl. The compiler is located
475 in util/yc.tcl. The auto-generated C code structures are, in a few
476 cases, incompatible with the old decoders. There are differences in the
477 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
478 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
479 The preprocessor variable ASN_COMPILED is defined when the compiled
480 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
481 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
482 wish to use the old encoders/decoders you can specify --disable-yc
485 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
486 version so that it supports both new - and old version of DB Update
488 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
489 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
490 change. The name parameter can be set to 0 in which no name is specified
491 for the construction. The macros odr_implicit and odr_explicit sets name
492 parameter to zero for the construction involved. New macros
493 odr_implicit_tag and odr_explicit_tag are similar to the others,
494 except that a name parameter is added. For programmers' that don't use
495 ODR they probably only need to change the call to z_APDU and z_External.
497 Added access control facility by interfacing the TCP wrapper library.
498 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
499 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
500 name of the daemon and enables the access control as specified in
501 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
503 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
504 den Dool <H.M.vdnDool@kub.nl>.
506 Added reference ID parameter to most functions in server API - refer
507 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
509 Changed name of ccl library to libccl.a (was ccl.a).
511 Fixed bug in decoder for Explain (Category TargetInfo).
513 Added support for GNU readline in client. Thanks to Jacob Poulsen
514 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
516 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
517 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
518 IMPLEMENTATION! This change was made to the development version before
519 the ZIG decided to retract the amendment. If any users MUST be
520 compatible with the original Update definition, PLEASE CONTACT US, and
521 we will include a separate definition corresponding to the old Update
522 ES. Note that because of the change to the ASN.1 of the
523 TaskPackageRecordStructure we cannot define a single structure that
524 will support both versions.
526 * Added const modifier to buffer parameter for some ODR/BER encoding
527 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
528 completeWAIS, odr_dumpBER.
530 Fixed bug in client.c which caused a crash when a scanResponse didn't
531 contain positionOfTerm.
533 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
534 * will cause an error in a client if a non-YAZ target sends both a
535 * list of Scan entries and non-surrogate diagnostics.
537 Retrieval module enhancements. Tag sets may be typed in the reference
538 to it. From the .abs-file the "tagset" directive takes a third optional
539 integer type for the tag set referenced. From a .tag-file the "include"
540 directive takes a third optional type as well. The old "type" directive
541 in the tag set itself is still recognized but acts as the default type
544 Backend interface change. Individual Scan terms returned from bend_scan
545 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
546 in include/backend.h.
548 Retrieval module enhancements. Multiple tag sets and attribute sets may
549 be specified in abstract syntax specs. Revised the error/warning for
550 logging messages reported by the retrieval module when reading the
553 Object Identifier system (oid_..) changed. The API is backwards
554 compatible but the oid-routines now allocates new OID's when needed.
555 Raw OID's may be specified in oid_getvalbyname.
557 YAZ now uses GNU configure to generate Makefile(s).
559 * Minor changes in some of the member names of DeleteResultSetRequest and
560 DeleteResultSetResponse. See include/proto.h.
562 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
563 and added member 'languages' in TargetInfo (which was missing).
565 Changed the way attribute sets are handled in the retrieval
566 module. These are now cached, just like the abstract syntaxes
569 Changed YAZ so that it links with compiled ASN.1.
571 Added Explain-schema definitions and mapping routines. The following
572 Explain categories have been implemented: AttributeDetails,
573 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
575 Fixed minor bug in Windows version of Server Library.
577 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
579 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
581 Added EXTERNAL: UNIverse Resource Report (non-standard).
583 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
584 ENUMERATED and SET OF.
586 * Added 'const' to some of the char pointer arguments for the
587 functions, data1_read_node, data1_getelementbytagname,
588 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
591 Fixed bug in data1_insert_taggeddata - the last_child member of
592 parent wasn't initialised.
594 * Changed data1_read_record and data1_read_node so that the supplied
595 "SGML"-buffer is read-only. In particular the resulting data1 - tree
596 doesn't refer to any parts of the "SGML"-buffer.
598 Fixed bug in server library (Windows version of statserv_remove).
600 * Changed code so that it compiles as C++. The type definition
601 of Odr_fun which is a member of Odr_arm was changed. The result is,
602 that an explicit typecast is needed for the fun pointer when
603 using Odr_arm - as in:
604 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
606 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
608 Implemented the new structured date and time definition as approved
609 by the ZIG. Added schemaId element to the specificTag in Espec-1
610 (also approved at the last ZIG). Thanks to RVDM.
612 Added some Object identifiers (RVDM).
614 Changed the Update Extended Service (RVDM).
616 Added command "refid" to client which specifies referenceId for
617 the following requests.
619 Implemented extended service handling for server. See ztest.c
620 for an example as well as backend.h. New handlers are registerd
623 * Changed interface for sort in server.
625 Added new members to statserv_options_block. It allows a server
626 to read options from another source than just the command line. Thanks
627 to Charles Woodfield.
629 * Changed definition of Z_Triple in file prt-grs.h - member boolean
630 renamed to zboolean. Some C++ compilers complained about the name.
632 Minor changes to gils.abs. Added index 's' (sort) on title
633 and date/time-last-modified.
637 Fixed bug in server library regarding inetd mode (-i). This bug
638 was introduced by release 1.4.
642 Added sort facility in client and backend server interface.
644 Fixed problem with dependencies in Makefile(s).
646 Fixed bugs for encoders/decoders of extended services and
649 Implemented sub-tree feature for schemas. Sub-trees are
650 referenced in *.abs-files. See explain.abs for an example
651 of the use of this feature.
653 Modified bib1.att; local attributes for ANY didn't include
654 ANY itself (only affects use of the retrieval module).
656 Fixed bug in plain SGML reader in function data1_read_node:
657 tags with prefix "var" was incorrectly interpreted as variants.
659 Added feature "sub-schemas" to enable references to - and definitions
660 of - group of elements.
662 * Removed member parent from type data1_element (in data1.h).
664 Implemented function odr_nullval() that returns the value of
667 * Removed member num_children from data1_node (in data1.h).
669 Made NT service interface part of the server library. The
670 function statserv_main uses the NT service when required and
671 calls the statserv_start / statserv_close routines.
673 Routine zget_SearchRequest and zget_PresentRequest fills
674 resultSetName/Id member with "default" instead of "Default".
676 Fixed memory leak in server. Request queue member wasn't freed.
678 Fixed nmem_exit so that memory is freed.
682 Revised the CCL parser utility to be thread safe.
684 Added function, oid_ent_to_oid, to replace the function
685 oid_getoidbyent, which is not thread safe.
687 * Added nmem_init and nmem_exit to initialize and release
688 NMEM resources. Function nmem_init should be called once in the
689 initial thread before NMEM/ODR is used. statserv.c and client.c
690 have been changed accordingly. The change was necessary to make
691 NMEM thread safe. The NMEM memory pool is shared amongst threads
692 in a process. Unix-based applications will still work fine without
695 Added NT Services interface for the the Z39.50 (statserv) Server.
696 Refer to the ztest.c source on the usage.
698 Windows 95/NT port using MSVC5.0. Project files are included in the
701 * Defined new 'global' handle for the retrieval (data1) system. The
702 new handled, data1_handle, describes the state of the data1 system.
703 This handle is passed as first argument to virtually all
704 data1 related routines. The functions data1_create and data1_destroy
705 creates and destroys a data1 handle respectively.
707 Added ODR encode stream member to all backend request structures
708 init, search, scan etc. This stream should be used to allocate all
709 memory used for the response when thread safe operation is needed.
711 Changed the comstack utility, cs_addstr, to be thread safe. The
712 returned hostname string returned by the function is now part the
715 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
716 function. The cs_straddr takes a COMSTACK handle as argument, so this
717 function must be used after cs_create and before bind/connect.
718 This function is thread safe.
720 Moved test server to 'ztest' directory - generic server code still
721 in 'server' directory.
723 Made prefix query (pquery.c) utility thread safe.
725 Added new function modifier YAZ_EXPORT to 'export' public DLL
726 functions when using windows (see include/yconfig.h).
728 Added definitions to the OID database (util/oid.c) (RVDM).
730 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
732 Added call to ccl_rpn_delete in client program.
734 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
735 release of RPN structure.
737 Added support for C++, headers uses extern "C" for public definitions.
738 With input from RVDM.
740 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
741 Thanks to Ronald van der Meer (RVDM).
743 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
745 Added support for private extensions to the OID database
746 (oid_setprivateoids()). Thanks to RVDM.
748 Added optional, physical ANY (key replication)
750 Fixed null-reference problem in GRS-1 output filter.
752 Proximity operator added to Prefix Query Format (PQF).
754 In test client command "base" accepts multiple databases.
756 Fixed bug in cs_close stack that caused trouble with WINSOCK.
760 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
762 Smallish bug-fixes in the new encoders/decoders (explain).
764 Bug fixed in DeleteRequest.
766 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
768 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
770 Added SOIF syntax (using private OID for now) to retrieval module and client.
772 Added Update extended service.
774 Added SearchResult-1 additional info structure.
776 Added optional CCL (ISO8777) interpreter as separate module. Available
779 --- 1.2 1996/6/10 (1st anniversary release)
781 Added Summary record syntax. Lightly tested.
783 Added OPAC record syntax. Untested.
785 Added ResourceReport service encoders/decoders. Untested.
787 Fixed bug in z_Unit - wrong tagging on unitSystem.
789 Fixed bug in the DiagRecs decoder.
791 Added options for max PDU size and session timeout to frontend-server.
793 Added documentation of query-language parsers and other supporting utilities.
795 [frontend-server] Added Attribute set to the bend_scanrequest API.
797 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
798 surrogate diagnostics were generated.
800 [retrieval] Allow multiple local values for attribute.
802 [retrieval] Allow multiple attributes per element in .abs files. index type.
804 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
808 Minor changes, mostly specific to Zebra's requirements (retrieval)
812 Repaired bug in frontend server when running multiple listening
813 endpoints in dynamic mode.
815 z_External() now won't break if a known, ASN.1 value comes encapsulated
816 in an octet-string. The value will pass through unmodified in an Odr_oct.
818 Added a bit of code to the demo client to decode & display
819 ASN.1-structured records represented in the octet-aligned branch of
820 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
822 Added z_ext_getentbyref() to the ASN module. Doc updated.
824 * Completed the SCAN definition in the ASN module. This may break SCAN
825 code based on older YAZ-versions at compile-time. The fix is easy -
828 * Added 'displayTerm' and OtherInformation to the TermInfo structure
829 under the SCAN definition. Remember to initialize this, server-people.
831 Comstack should now support the WAIS protocol in TCP/IP mode. Note
832 that this does not extend to ODR and ASN.
834 Comstack allows insertion of established socket (primarily for
835 inetd-operation of servers). Doc updated.
837 Front-end server can now start from the inetd in TCP mode. Doc
844 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
845 the rank and record number.
847 Adjustments to the frontend server.
849 Fixed diagnostic BER dumper. It ignored the file argument.
853 Various changes to retrieval module.
855 Changed the union discriminators of the protocol files from enums to
856 ints paired with #defines.
858 *Changed oident.class to oident.oclass to avoid a reserved word in C++
861 *Changed operator in the RPN structure to 'roperator', again to avoid a
864 Fixed problems in Explain decoders/encoders.
868 Memory bug in log module fixed.
872 Occasional malloc() of 0 bytes fixed in d1_espec.c.
874 Bug in Explain DatabaseInfo module fixed.
876 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
880 The shift to v1.0 signals that we now consider the *core* functionality
881 of YAZ reasonably stable (the core being more or less equivalent to
882 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
883 tested (Explain not at all - though that will happen soonish).
885 Minor changes to code to support Windows port.
887 Various minor changes after we're getting to use GRS-1 & co. more.
889 Added Espec-1 format.
891 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
892 of the protocol and it cannot be selected when encoding (maps into 'string'
893 when decoding). Needed to talk to some servers.
895 Demo client can request simple element set names.
897 Added Diagnostic Format encoders/decoders.
899 Added simple Close handling to frontend server (no hooks for resource
900 reporting yet), and demonstration client.
902 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
906 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
907 handled incorrectly when records were requested in the searchResponse. This
908 will only affect you if you use the frontend-server.
910 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
911 Test-client will ask for and print GRS1. Ztest will return dummy records
914 Added Explain encoders/decoders to the service-level API. Untested.
916 Added Extended Services: Item Order encoders and decoders to the Service-
917 level API. Untested. We could use a recent copy of the pertinent bits
918 of the ILL protocol to add those bits.
920 Added diagnostic format 1 encoders/decoders to the service-level API.
923 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
924 odr_cons.c, which causes a more correct output.
926 Fixed handling of searchRequest in frontend server. NextResultSetPosition
927 was always set to 0 when no records were requested in the searchRequest.
929 * Added better external-handling. This shouldn't harm old code that
930 *encodes* externals. It can break code that looks for a
931 'single-ASN1-type' representation, since those types that are known
932 are now decoded immediately. Look at the SUTRS sample code in
933 seshigh.c and client.c. Documentation updated.
935 Handling of structured records in bend_fetchresponse. Length -1 marks
936 structured record, type is deduced from format field.
939 Fairly quick maintenance release to add SUTRS support.
941 Fixed handling of SUTRS records in the demonstration client.
943 * Added format field to the bend_fetchrequest and bend_fetchresponce
944 structures of the backend API (frontend server). When the record is
945 returned, the value of the format field is mapped to an OID. The
946 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
947 of the record. The special value VAL_NONE in the bend_request means
948 that no specific format was requested by the client. Documentation
949 updated accordingly. Test server (ztest) will return a fixed dummy
950 SUTRS record if your client requests SUTRS.
952 Documentation updated accordingly.
954 You can now set external libraries and RANLIB support in the top-level
958 First public release.