1 Possible compatibility problems with earlier versions marked with '*'.
5 * String Identifers for Schemas (Amendment 5).
6 http://lcweb.loc.gov/z3950/agency/amend/am5.html
7 Old definition for schema
8 Odr_oid *schema; /* OPT */
13 Z_InternationalString *uri;
14 #define Z_Schema_oid 1
15 #define Z_Schema_uri 2
18 * resultCount parameter to Sort Response (Amendment 1).
19 http://lcweb.loc.gov/z3950/agency/amend/am1.html
21 Support for SRW 1.0 over HTTP. This is an optional feature and
22 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
25 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
26 on the same port. SRW SearchRetrieveRequests are mapped
27 to bend_init,bend_search,bend_fetch,bend_close.
29 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
31 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
32 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
34 ZOOM connections are SRW based if schem http is used for hostname
35 in connect, e.g. z = ZOOM_connection_new("http://myserver");
36 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
38 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
39 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
40 distance=n, order=true/false, relation=le, prox unit=word. If
41 n is omitted, distance 1 is used.
43 Fixed problem with C compiler include path in wrong order.
45 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
46 on Solaris. Patch from Ko van der Sloot.
48 New MARC decode API. All new functions operate on a yaz_marc_t
49 handle. The most important new functions are: yaz_marc_create,
50 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
51 decode and destroy respectively. Decoder can produce formats
52 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
53 include/yaz/marcdisp.h.
55 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
56 to UTF-8, UCS-32, wchar_t or Latin-1.
58 * Prototypes for yaz_iconv_-functions moved to separate header
59 include/yaz/yaz-iconv.h.
61 Make a few private functions 'static' in unix.c. This prevents
62 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
64 For ZOOM connection, the options targetImplementation{Id,Name,Version}
65 are set when Init Response is received.
67 New function ZOOM_connection_error_x similar to ZOOM_connection_error
68 but returns diagnostic set as well.
70 New function yaz_strerror which is a portable wrapper for
71 strerror/strerror_r/GetLastMessage.
73 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
74 is returned for MARC. If type is "oai", then OAI MARC is returned.
76 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
81 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
83 Fix bad race conditions on SIGTERM and terminate gracefully in
86 Move retrieval (data1) module to Zebra since nobody seems to be
89 Add GRS-1 render for ZOOM using same format as yaz-client.
93 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
95 Fix broken ESpec handling in data1 module.
97 SGML reader parses comments and makes them part of the data1 tree.
99 Added several type casts so that YAZ compiles as C++ code.
101 ZOOM didn't handle PDU encoding failures properly.
103 Added more Bib-1 diagnostics (approved extensions).
105 GNU configure: better check for iconv.
107 More portable use of accept, getpeername. Check for socklen_t. Use
108 int/size_t if socklen_t is not defined.
112 PQF parser rejects bad queries - including those with extra
113 characters in them. PQF parser used to silently ignore that.
114 Cleaner API for PQF added, which allows you to get detailed
115 error information for bad queries (see yaz/pquery.h).
117 Fixed bug in ZOOM_record_get for type "database".
119 Implemented mini iconv library supporting conversions between
120 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
122 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
126 Fixed ZOOM C record cache so that preferredRecordSyntax and
127 elementSetName is used to check for already fetched records.
131 Added three members in bend_initrequest structure to facilitate
132 character set negotiation.
134 Fixed a bug in frontend server that could cause indefinite
135 loops under rare conditions.
137 Revised character set utilities (charneg.h) so that encoding
138 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
140 For PQF, directive @term <type> sets term type for Scan/Search.
141 Here <type> is general, string, numeric, null. The term type
142 is inherited - just like @attr.
144 New call odr_set_charset that sets character set conversion for
145 international-strings on a ODR stream. Prototype is:
146 int odr_set_charset(ODR o, const char *to, const char *from);
147 The InternationalString is still represented as C string in YAZ
148 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
149 won't). On the protocol level, you can use any encoding.
151 Support for UNIX sockets in ZOOM.
153 Solaris recv sometimes returns errno == ENOENT. It is treated as
154 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
156 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
157 both client and server. Code by Morten Bøgeskov.
161 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
162 that they can be used directly from Visual Basic. You must recompile
163 your windows APP if you're using ZOOM.
165 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
166 Commands "lang" and "charset" sets language and character set respectively.
167 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
168 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
170 Attributes from multiple CCL fields may be OR'ed rather than merged
171 using directive "@field or". Fields are still merged by default -
172 equivalent to "@field merge".
174 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
177 Fixed bug in zget for parameter ExtendedServicesResponse.
183 Added PQF feature: '@attr type=value' may be written as '@type=value'.
185 Client displays USR.1:SearchResult-1 (hits per term).
187 Additional Search Info for search in Generic Frontend Server.
189 Fixed CCL parsing of "field=s".
191 WIN32 installer - using the excellent NSIS software from nullsoft.
193 Fixed CCL parsing of "field = - <number>".
195 Added function yaz_marc_decode that decodes MARC for line mode
196 display or XML (similar to that used by JZKit).
198 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
199 Z39.50. But ISO/ILL was, however.
201 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
202 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
204 http://lcweb.loc.gov/z3950/agency/amend/am2.html
205 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
209 New YAZ client features: Command completion and new commands:
210 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
211 Code provided by Jacob Poulsen.
213 New call oid_trav, that visits all registered OIDs via callback.
215 Function ZOOM_record_get now returns const char pointer rather than
216 void pointer. It saves a lot of type casts.
218 For YAZ client, command "auth" now allows you to set authentication
219 in IdPass style. It is enabled when three tokens are given - order
220 is user, group and password.
222 Fix memory leaks in MARC record handling for ZOOM.
224 New option for YAZ client, -k <kilobytes> that sets
225 maximum record size. Similar to -k option for generic frontend
226 server and yaz-ztest.
228 More fixes for scan. Non-zero stepSize handled. OID's fixes.
230 Prefix query parser reports "fail" when bad attribute set is given.
232 Fix in MARC decoder. Proximity logging. Fix for attribute set
233 in scan handler for server. Patches by Shigeru Ishida.
235 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
238 Configure option --with-openssl=<dir> now works when a directory is
239 specified. Patch provided by Morten Bøgeskov.
241 New option for YAZ client, -u <auth>, that sets authentication.
243 ZOOM fix: error information was sometimes "missing", since error
244 was cleared/reset too when it shouldn't.
246 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
250 Scan for ZOOM API. New object ZOOM_scanset. New functions
251 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
252 ZOOM_scanset_destroy.
254 New ZOOM function, ZOOM_connection_last_event, that returns type
255 of last event (such as "receive data", "send data", "apdu received",
258 New ZOOM option, schema, that specifies schema for retrieval.
260 New CCL feature. Qualifiers can be aliases for one or more
261 other qualifiers (if more than one is given, OR is used).
263 ZOOM uses named result sets if target supports it.
265 Two new YAZ client commands: . (dot, which sources a script of YAZ
266 client commands), and ! (to execute shell command.). Implemented
269 Working on Debian packages.
273 YAZ client enables named result sets only if target supports it.
275 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
277 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
278 with key="host" to get same result.
280 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
281 Function Z3950_resultset_record(s) returns references to records
282 "owned" by resultset. To become owner use Z3950_record_clone.
284 Function z_ext_record handles Extended Services. Thanks to
289 CCL Parser fix: ignore token comma when dealing with and-lists.
291 Documentation updates for COMSTACK.
293 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
294 Changed prototype Z3950_records. For some functions, int parameters
295 were changed to size_t.
297 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
300 New MARC decode/display function, marc_display_exl, which properly rejects
301 non-ISO2709 records. YAZ client uses it.
305 Fix bug: local attribute set wasn't set correctly in PQF strings.
309 * Old Z39.50 codecs no longer supported.
311 Added ZOOM C binding. See http://zoom.z3950.org/
313 Renamed states for COMSTACKs to avoid confusion with events.
315 Implemented cs_look and proper cs_rcvconnect.
317 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
319 Configure detects POSIX threads on OpenBSD.
321 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
322 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
324 When error is returned from present handler, non-surrogate diagnostic
325 is returned in present response (and fetch handler is no longer called).
327 * Minor adjustments to pquery parser (PQF). Token characters may be
328 escaped by using backslash (C-style).
330 PQF parser allows string attribute values to be specified. For @attr,
331 non-numeric characters after the equal-sign are treated as strings
332 (e.g. @attr 9=title).
334 CCL trunction character may be defined (@truncation in file)
336 * function zget_ExtendedServicesRequest sets waitAction to
337 waitIfPossible (was wait).
339 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
342 CCL operator names may be set in field definition files (CCL_bibset).
343 See ccl/bib1 for an example.
345 Fixes in ASN.1 compiler for C++ compatibility.
347 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
348 and "op_or" to avoid conflict with C++.
350 Fixed problem with GNU readline detection on Redhat 7.0.
352 Added step-size for Scan backend handler.
354 Fixed bug that made the frontend server crash when no attribute
355 set was specified for scan.
357 Front-end server automatically switches to original working directory
358 when installed as an NT service. Previously -w had to be specified to
361 Added extended attributes for retrieval module (data1), so that data1
362 records carry d1_readXML/SGML attributes. d1_read also supports
363 null-data rules ( <tag/>)
365 On UNIX when POSIX threads are available, a separate library libyazthread
366 is created. Programmers should link with that library and the yaz library
367 when using threads. The reason for the split was that some applications
368 on Linux, such as Apache, doesn't work well when using shared objects that
371 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
372 (or any frontend server) in SSL mode by specifying ssl: followed by
373 address. Only tested on UNIX.
375 Added feature for CCL module. Virtual structure s=al or s=ol generates
376 and-list and or-list respectively instead of phrase search.
380 * Added prefix "yaz_" for the functions log_init.., log_file.. and
381 log_mask_str. This was done to avoid name conflicts with other libraries
382 (such as other PHP extensions).
384 Added raw OID member for preferred record syntax (request_format_raw)
385 and returned record syntax (output_format_raw) for backend fetch method.
387 Config file yaz-config now accepts options so that it returns specific
388 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
390 Shared library support for UNIX using GNU libtool.
392 * Modified backend interface. Request/Response struct's replaced by
393 one read/write C struct. For example bend_fetchrequest and
394 bend_fetchresult have been replaced by single bend_fetch_rr struct.
395 Every handler - even search has to be registered in bend_init
396 handler. This means that the YAZ library no longer refers to
397 external functions and it makes it possible to make the whole
398 thing a single DLL/SO.
400 Added Segment handler for backend server.
402 Added Zmbol/Zebra administrative functions to YAZ client.
404 Threaded frontend server on UNIX (when POSIX Threads are available).
405 Starting the server with option -T enables multi-threading.
409 Added configure option --enable-comp/disable-comp to control use
410 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
411 located in sub directory asn.
413 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
414 in ${exec_prefix}/bin along with the other programs yaz-client and
417 GNU automake used to maintain makefiles.
421 Changed retrieval module so that we can load records with no abstract
422 syntax defined. Tagpaths in these records are fully composed of string
425 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
429 On UNIX, the generated makefile now supports a proper 'make install'.
430 The prefix can be set via GNU configure to set the install location
431 (default is /usr/local).
433 * YAZ programs client and ztest were renamed to yaz-client and
434 yaz-ztest to avoid conflicts when users install YAZ in "standard"
435 locations, such as /usr/bin,/usr/local/bin,etc.
437 * YAZ Header files were moved from include to include/yaz. YAZ Header
438 files are referred to as include <yaz/log.h> rather than <log.h>.
439 The YAZ include path (-I ..) is therefore the same as before. Programmers
440 should update their #include statements or use -Ipath/include/yaz
441 instead. The main motivation for doing this change is that YAZ header files
442 can be installed in "standard" locations /usr/include,/usr/local/include
443 without introducing conflicts, since ALL YAZ header files are stored
444 in subdirectory yaz (under /usr/include for example).
446 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
447 rather than project/workspace files. We switched because project files
448 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
451 Changed name of logging function, logf, to yaz_log, to prevent name
452 clash with some math-log functions. The YAZ header log.h defines logf
453 to yaz_log (#define) so there should be no incompatibilities by this
456 Added bend_start/bend_stop handlers for server. These handler are
457 called on start/stop of server. For windows they are called whenever
458 a service is started/stopped.
460 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
461 a fairly small ASN.1 compiler written in Tcl. The compiler is located
462 in util/yc.tcl. The auto-generated C code structures are, in a few
463 cases, incompatible with the old decoders. There are differences in the
464 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
465 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
466 The preprocessor variable ASN_COMPILED is defined when the compiled
467 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
468 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
469 wish to use the old encoders/decoders you can specify --disable-yc
472 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
473 version so that it supports both new - and old version of DB Update
475 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
476 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
477 change. The name parameter can be set to 0 in which no name is specified
478 for the construction. The macros odr_implicit and odr_explicit sets name
479 parameter to zero for the construction involved. New macros
480 odr_implicit_tag and odr_explicit_tag are similar to the others,
481 except that a name parameter is added. For programmers' that don't use
482 ODR they probably only need to change the call to z_APDU and z_External.
484 Added access control facility by interfacing the TCP wrapper library.
485 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
486 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
487 name of the daemon and enables the access control as specified in
488 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
490 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
491 den Dool <H.M.vdnDool@kub.nl>.
493 Added reference ID parameter to most functions in server API - refer
494 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
496 Changed name of ccl library to libccl.a (was ccl.a).
498 Fixed bug in decoder for Explain (Category TargetInfo).
500 Added support for GNU readline in client. Thanks to Jacob Poulsen
501 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
503 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
504 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
505 IMPLEMENTATION! This change was made to the development version before
506 the ZIG decided to retract the amendment. If any users MUST be
507 compatible with the original Update definition, PLEASE CONTACT US, and
508 we will include a separate definition corresponding to the old Update
509 ES. Note that because of the change to the ASN.1 of the
510 TaskPackageRecordStructure we cannot define a single structure that
511 will support both versions.
513 * Added const modifier to buffer parameter for some ODR/BER encoding
514 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
515 completeWAIS, odr_dumpBER.
517 Fixed bug in client.c which caused a crash when a scanResponse didn't
518 contain positionOfTerm.
520 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
521 * will cause an error in a client if a non-YAZ target sends both a
522 * list of Scan entries and non-surrogate diagnostics.
524 Retrieval module enhancements. Tag sets may be typed in the reference
525 to it. From the .abs-file the "tagset" directive takes a third optional
526 integer type for the tag set referenced. From a .tag-file the "include"
527 directive takes a third optional type as well. The old "type" directive
528 in the tag set itself is still recognized but acts as the default type
531 Backend interface change. Individual Scan terms returned from bend_scan
532 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
533 in include/backend.h.
535 Retrieval module enhancements. Multiple tag sets and attribute sets may
536 be specified in abstract syntax specs. Revised the error/warning for
537 logging messages reported by the retrieval module when reading the
540 Object Identifier system (oid_..) changed. The API is backwards
541 compatible but the oid-routines now allocates new OID's when needed.
542 Raw OID's may be specified in oid_getvalbyname.
544 YAZ now uses GNU configure to generate Makefile(s).
546 * Minor changes in some of the member names of DeleteResultSetRequest and
547 DeleteResultSetResponse. See include/proto.h.
549 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
550 and added member 'languages' in TargetInfo (which was missing).
552 Changed the way attribute sets are handled in the retrieval
553 module. These are now cached, just like the abstract syntaxes
556 Changed YAZ so that it links with compiled ASN.1.
558 Added Explain-schema definitions and mapping routines. The following
559 Explain categories have been implemented: AttributeDetails,
560 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
562 Fixed minor bug in Windows version of Server Library.
564 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
566 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
568 Added EXTERNAL: UNIverse Resource Report (non-standard).
570 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
571 ENUMERATED and SET OF.
573 * Added 'const' to some of the char pointer arguments for the
574 functions, data1_read_node, data1_getelementbytagname,
575 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
578 Fixed bug in data1_insert_taggeddata - the last_child member of
579 parent wasn't initialised.
581 * Changed data1_read_record and data1_read_node so that the supplied
582 "SGML"-buffer is read-only. In particular the resulting data1 - tree
583 doesn't refer to any parts of the "SGML"-buffer.
585 Fixed bug in server library (Windows version of statserv_remove).
587 * Changed code so that it compiles as C++. The type definition
588 of Odr_fun which is a member of Odr_arm was changed. The result is,
589 that an explicit typecast is needed for the fun pointer when
590 using Odr_arm - as in:
591 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
593 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
595 Implemented the new structured date and time definition as approved
596 by the ZIG. Added schemaId element to the specificTag in Espec-1
597 (also approved at the last ZIG). Thanks to RVDM.
599 Added some Object identifiers (RVDM).
601 Changed the Update Extended Service (RVDM).
603 Added command "refid" to client which specifies referenceId for
604 the following requests.
606 Implemented extended service handling for server. See ztest.c
607 for an example as well as backend.h. New handlers are registerd
610 * Changed interface for sort in server.
612 Added new members to statserv_options_block. It allows a server
613 to read options from another source than just the command line. Thanks
614 to Charles Woodfield.
616 * Changed definition of Z_Triple in file prt-grs.h - member boolean
617 renamed to zboolean. Some C++ compilers complained about the name.
619 Minor changes to gils.abs. Added index 's' (sort) on title
620 and date/time-last-modified.
624 Fixed bug in server library regarding inetd mode (-i). This bug
625 was introduced by release 1.4.
629 Added sort facility in client and backend server interface.
631 Fixed problem with dependencies in Makefile(s).
633 Fixed bugs for encoders/decoders of extended services and
636 Implemented sub-tree feature for schemas. Sub-trees are
637 referenced in *.abs-files. See explain.abs for an example
638 of the use of this feature.
640 Modified bib1.att; local attributes for ANY didn't include
641 ANY itself (only affects use of the retrieval module).
643 Fixed bug in plain SGML reader in function data1_read_node:
644 tags with prefix "var" was incorrectly interpreted as variants.
646 Added feature "sub-schemas" to enable references to - and definitions
647 of - group of elements.
649 * Removed member parent from type data1_element (in data1.h).
651 Implemented function odr_nullval() that returns the value of
654 * Removed member num_children from data1_node (in data1.h).
656 Made NT service interface part of the server library. The
657 function statserv_main uses the NT service when required and
658 calls the statserv_start / statserv_close routines.
660 Routine zget_SearchRequest and zget_PresentRequest fills
661 resultSetName/Id member with "default" instead of "Default".
663 Fixed memory leak in server. Request queue member wasn't freed.
665 Fixed nmem_exit so that memory is freed.
669 Revised the CCL parser utility to be thread safe.
671 Added function, oid_ent_to_oid, to replace the function
672 oid_getoidbyent, which is not thread safe.
674 * Added nmem_init and nmem_exit to initialize and release
675 NMEM resources. Function nmem_init should be called once in the
676 initial thread before NMEM/ODR is used. statserv.c and client.c
677 have been changed accordingly. The change was necessary to make
678 NMEM thread safe. The NMEM memory pool is shared amongst threads
679 in a process. Unix-based applications will still work fine without
682 Added NT Services interface for the the Z39.50 (statserv) Server.
683 Refer to the ztest.c source on the usage.
685 Windows 95/NT port using MSVC5.0. Project files are included in the
688 * Defined new 'global' handle for the retrieval (data1) system. The
689 new handled, data1_handle, describes the state of the data1 system.
690 This handle is passed as first argument to virtually all
691 data1 related routines. The functions data1_create and data1_destroy
692 creates and destroys a data1 handle respectively.
694 Added ODR encode stream member to all backend request structures
695 init, search, scan etc. This stream should be used to allocate all
696 memory used for the response when thread safe operation is needed.
698 Changed the comstack utility, cs_addstr, to be thread safe. The
699 returned hostname string returned by the function is now part the
702 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
703 function. The cs_straddr takes a COMSTACK handle as argument, so this
704 function must be used after cs_create and before bind/connect.
705 This function is thread safe.
707 Moved test server to 'ztest' directory - generic server code still
708 in 'server' directory.
710 Made prefix query (pquery.c) utility thread safe.
712 Added new function modifier YAZ_EXPORT to 'export' public DLL
713 functions when using windows (see include/yconfig.h).
715 Added definitions to the OID database (util/oid.c) (RVDM).
717 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
719 Added call to ccl_rpn_delete in client program.
721 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
722 release of RPN structure.
724 Added support for C++, headers uses extern "C" for public definitions.
725 With input from RVDM.
727 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
728 Thanks to Ronald van der Meer (RVDM).
730 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
732 Added support for private extensions to the OID database
733 (oid_setprivateoids()). Thanks to RVDM.
735 Added optional, physical ANY (key replication)
737 Fixed null-reference problem in GRS-1 output filter.
739 Proximity operator added to Prefix Query Format (PQF).
741 In test client command "base" accepts multiple databases.
743 Fixed bug in cs_close stack that caused trouble with WINSOCK.
747 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
749 Smallish bug-fixes in the new encoders/decoders (explain).
751 Bug fixed in DeleteRequest.
753 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
755 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
757 Added SOIF syntax (using private OID for now) to retrieval module and client.
759 Added Update extended service.
761 Added SearchResult-1 additional info structure.
763 Added optional CCL (ISO8777) interpreter as separate module. Available
766 --- 1.2 1996/6/10 (1st anniversary release)
768 Added Summary record syntax. Lightly tested.
770 Added OPAC record syntax. Untested.
772 Added ResourceReport service encoders/decoders. Untested.
774 Fixed bug in z_Unit - wrong tagging on unitSystem.
776 Fixed bug in the DiagRecs decoder.
778 Added options for max PDU size and session timeout to frontend-server.
780 Added documentation of query-language parsers and other supporting utilities.
782 [frontend-server] Added Attribute set to the bend_scanrequest API.
784 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
785 surrogate diagnostics were generated.
787 [retrieval] Allow multiple local values for attribute.
789 [retrieval] Allow multiple attributes per element in .abs files. index type.
791 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
795 Minor changes, mostly specific to Zebra's requirements (retrieval)
799 Repaired bug in frontend server when running multiple listening
800 endpoints in dynamic mode.
802 z_External() now won't break if a known, ASN.1 value comes encapsulated
803 in an octet-string. The value will pass through unmodified in an Odr_oct.
805 Added a bit of code to the demo client to decode & display
806 ASN.1-structured records represented in the octet-aligned branch of
807 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
809 Added z_ext_getentbyref() to the ASN module. Doc updated.
811 * Completed the SCAN definition in the ASN module. This may break SCAN
812 code based on older YAZ-versions at compile-time. The fix is easy -
815 * Added 'displayTerm' and OtherInformation to the TermInfo structure
816 under the SCAN definition. Remember to initialize this, server-people.
818 Comstack should now support the WAIS protocol in TCP/IP mode. Note
819 that this does not extend to ODR and ASN.
821 Comstack allows insertion of established socket (primarily for
822 inetd-operation of servers). Doc updated.
824 Front-end server can now start from the inetd in TCP mode. Doc
831 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
832 the rank and record number.
834 Adjustments to the frontend server.
836 Fixed diagnostic BER dumper. It ignored the file argument.
840 Various changes to retrieval module.
842 Changed the union discriminators of the protocol files from enums to
843 ints paired with #defines.
845 *Changed oident.class to oident.oclass to avoid a reserved word in C++
848 *Changed operator in the RPN structure to 'roperator', again to avoid a
851 Fixed problems in Explain decoders/encoders.
855 Memory bug in log module fixed.
859 Occasional malloc() of 0 bytes fixed in d1_espec.c.
861 Bug in Explain DatabaseInfo module fixed.
863 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
867 The shift to v1.0 signals that we now consider the *core* functionality
868 of YAZ reasonably stable (the core being more or less equivalent to
869 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
870 tested (Explain not at all - though that will happen soonish).
872 Minor changes to code to support Windows port.
874 Various minor changes after we're getting to use GRS-1 & co. more.
876 Added Espec-1 format.
878 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
879 of the protocol and it cannot be selected when encoding (maps into 'string'
880 when decoding). Needed to talk to some servers.
882 Demo client can request simple element set names.
884 Added Diagnostic Format encoders/decoders.
886 Added simple Close handling to frontend server (no hooks for resource
887 reporting yet), and demonstration client.
889 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
893 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
894 handled incorrectly when records were requested in the searchResponse. This
895 will only affect you if you use the frontend-server.
897 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
898 Test-client will ask for and print GRS1. Ztest will return dummy records
901 Added Explain encoders/decoders to the service-level API. Untested.
903 Added Extended Services: Item Order encoders and decoders to the Service-
904 level API. Untested. We could use a recent copy of the pertinent bits
905 of the ILL protocol to add those bits.
907 Added diagnostic format 1 encoders/decoders to the service-level API.
910 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
911 odr_cons.c, which causes a more correct output.
913 Fixed handling of searchRequest in frontend server. NextResultSetPosition
914 was always set to 0 when no records were requested in the searchRequest.
916 * Added better external-handling. This shouldn't harm old code that
917 *encodes* externals. It can break code that looks for a
918 'single-ASN1-type' representation, since those types that are known
919 are now decoded immediately. Look at the SUTRS sample code in
920 seshigh.c and client.c. Documentation updated.
922 Handling of structured records in bend_fetchresponse. Length -1 marks
923 structured record, type is deduced from format field.
926 Fairly quick maintenance release to add SUTRS support.
928 Fixed handling of SUTRS records in the demonstration client.
930 * Added format field to the bend_fetchrequest and bend_fetchresponce
931 structures of the backend API (frontend server). When the record is
932 returned, the value of the format field is mapped to an OID. The
933 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
934 of the record. The special value VAL_NONE in the bend_request means
935 that no specific format was requested by the client. Documentation
936 updated accordingly. Test server (ztest) will return a fixed dummy
937 SUTRS record if your client requests SUTRS.
939 Documentation updated accordingly.
941 You can now set external libraries and RANLIB support in the top-level
945 First public release.