1 Possible compatibility problems with earlier versions marked with '*'.
3 For ZOOM connection, the options targetImplementation{Id,Name,Version}
4 are set when Init Response is received.
6 New function ZOOM_connection_error_x similar to ZOOM_connection_error
7 but returns diagnostic set as well.
9 New function yaz_strerror which is a portable wrapper for
10 strerror/strerror_r/GetLastMessage.
12 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
13 is returned for MARC. If type is "oai", then OAI MARC is returned.
15 yaz_marc_decode supports MARC XML as well. The xml parameter
16 specifies type. See include/yaz/marcdisp.h
18 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
23 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
25 Fix bad race conditions on SIGTERM and terminate gracefully in
28 Move retrieval (data1) module to Zebra since nobody seems to be
31 Add GRS-1 render for ZOOM using same format as yaz-client.
35 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
37 Fix broken ESpec handling in data1 module.
39 SGML reader parses comments and makes them part of the data1 tree.
41 Added several type casts so that YAZ compiles as C++ code.
43 ZOOM didn't handle PDU encoding failures properly.
45 Added more Bib-1 diagnostics (approved extensions).
47 GNU configure: better check for iconv.
49 More portable use of accept, getpeername. Check for socklen_t. Use
50 int/size_t if socklen_t is not defined.
54 PQF parser rejects bad queries - including those with extra
55 characters in them. PQF parser used to silently ignore that.
56 Cleaner API for PQF added, which allows you to get detailed
57 error information for bad queries (see yaz/pquery.h).
59 Fixed bug in ZOOM_record_get for type "database".
61 Implemented mini iconv library supporting conversions between
62 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
64 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
68 Fixed ZOOM C record cache so that preferredRecordSyntax and
69 elementSetName is used to check for already fetched records.
73 Added three members in bend_initrequest structure to facilitate
74 character set negotiation.
76 Fixed a bug in frontend server that could cause indefinite
77 loops under rare conditions.
79 Revised character set utilities (charneg.h) so that encoding
80 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
82 For PQF, directive @term <type> sets term type for Scan/Search.
83 Here <type> is general, string, numeric, null. The term type
84 is inherited - just like @attr.
86 New call odr_set_charset that sets character set conversion for
87 international-strings on a ODR stream. Prototype is:
88 int odr_set_charset(ODR o, const char *to, const char *from);
89 The InternationalString is still represented as C string in YAZ
90 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
91 won't). On the protocol level, you can use any encoding.
93 Support for UNIX sockets in ZOOM.
95 Solaris recv sometimes returns errno == ENOENT. It is treated as
96 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
98 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
99 both client and server. Code by Morten Bøgeskov.
103 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
104 that they can be used directly from Visual Basic. You must recompile
105 your windows APP if you're using ZOOM.
107 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
108 Commands "lang" and "charset" sets language and character set respectively.
109 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
110 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
112 Attributes from multiple CCL fields may be OR'ed rather than merged
113 using directive "@field or". Fields are still merged by default -
114 equivalent to "@field merge".
116 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
119 Fixed bug in zget for parameter ExtendedServicesResponse.
125 Added PQF feature: '@attr type=value' may be written as '@type=value'.
127 Client displays USR.1:SearchResult-1 (hits per term).
129 Additional Search Info for search in Generic Frontend Server.
131 Fixed CCL parsing of "field=s".
133 WIN32 installer - using the excellent NSIS software from nullsoft.
135 Fixed CCL parsing of "field = - <number>".
137 Added function yaz_marc_decode that decodes MARC for line mode
138 display or XML (similar to that used by JZKit).
140 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
141 Z39.50. But ISO/ILL was, however.
143 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
144 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
146 http://lcweb.loc.gov/z3950/agency/amend/am2.html
147 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
151 New YAZ client features: Command completion and new commands:
152 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
153 Code provided by Jacob Poulsen.
155 New call oid_trav, that visits all registered OIDs via callback.
157 Function ZOOM_record_get now returns const char pointer rather than
158 void pointer. It saves a lot of type casts.
160 For YAZ client, command "auth" now allows you to set authentication
161 in IdPass style. It is enabled when three tokens are given - order
162 is user, group and password.
164 Fix memory leaks in MARC record handling for ZOOM.
166 New option for YAZ client, -k <kilobytes> that sets
167 maximum record size. Similar to -k option for generic frontend
168 server and yaz-ztest.
170 More fixes for scan. Non-zero stepSize handled. OID's fixes.
172 Prefix query parser reports "fail" when bad attribute set is given.
174 Fix in MARC decoder. Proximity logging. Fix for attribute set
175 in scan handler for server. Patches by Shigeru Ishida.
177 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
180 Configure option --with-openssl=<dir> now works when a directory is
181 specified. Patch provided by Morten Bøgeskov.
183 New option for YAZ client, -u <auth>, that sets authentication.
185 ZOOM fix: error information was sometimes "missing", since error
186 was cleared/reset too when it shouldn't.
188 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
192 Scan for ZOOM API. New object ZOOM_scanset. New functions
193 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
194 ZOOM_scanset_destroy.
196 New ZOOM function, ZOOM_connection_last_event, that returns type
197 of last event (such as "receive data", "send data", "apdu received",
200 New ZOOM option, schema, that specifies shema OID for retrieval.
202 New CCL feature. Qualifiers can be aliases for one or more
203 other qualifiers (if more than one is given, OR is used).
205 ZOOM uses named result sets if target supports it.
207 Two new YAZ client commands: . (dot, which sources a script of YAZ
208 client commands), and ! (to execute shell command.). Implemented
211 Working on Debian packages.
215 YAZ client enables named result sets only if target supports it.
217 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
219 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
220 with key="host" to get same result.
222 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
223 Function Z3950_resultset_record(s) returns references to records
224 "owned" by resultset. To become owner use Z3950_record_clone.
226 Function z_ext_record handles Extended Services. Thanks to
231 CCL Parser fix: ignore token comma when dealing with and-lists.
233 Documentation updates for COMSTACK.
235 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
236 Changed prototype Z3950_records. For some functions, int parameters
237 were changed to size_t.
239 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
242 New MARC decode/display function, marc_display_exl, which properly rejects
243 non-ISO2709 records. YAZ client uses it.
247 Fix bug: local attribute set wasn't set correctly in PQF strings.
251 * Old Z39.50 codecs no longer supported.
253 Added ZOOM C binding. See http://zoom.z3950.org/
255 Renamed states for COMSTACKs to avoid confusion with events.
257 Implemented cs_look and proper cs_rcvconnect.
259 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
261 Configure detects POSIX threads on OpenBSD.
263 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
264 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
266 When error is returned from present handler, non-surrogate diagnostic
267 is returned in present response (and fetch handler is no longer called).
269 * Minor adjustments to pquery parser (PQF). Token characters may be
270 escaped by using backslash (C-style).
272 PQF parser allows string attribute values to be specified. For @attr,
273 non-numeric characters after the equal-sign are treated as strings
274 (e.g. @attr 9=title).
276 CCL trunction character may be defined (@truncation in file)
278 * function zget_ExtendedServicesRequest sets waitAction to
279 waitIfPossible (was wait).
281 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
284 CCL operator names may be set in field definition files (CCL_bibset).
285 See ccl/bib1 for an example.
287 Fixes in ASN.1 compiler for C++ compatibility.
289 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
290 and "op_or" to avoid conflict with C++.
292 Fixed problem with GNU readline detection on Redhat 7.0.
294 Added step-size for Scan backend handler.
296 Fixed bug that made the frontend server crash when no attribute
297 set was specified for scan.
299 Front-end server automatically switches to original working directory
300 when installed as an NT service. Previously -w had to be specified to
303 Added extended attributes for retrieval module (data1), so that data1
304 records carry d1_readXML/SGML attributes. d1_read also supports
305 null-data rules ( <tag/>)
307 On UNIX when POSIX threads are available, a separate library libyazthread
308 is created. Programmers should link with that library and the yaz library
309 when using threads. The reason for the split was that some applications
310 on Linux, such as Apache, doesn't work well when using shared objects that
313 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
314 (or any frontend server) in SSL mode by specifying ssl: followed by
315 address. Only tested on UNIX.
317 Added feature for CCL module. Virtual structure s=al or s=ol generates
318 and-list and or-list respectively instead of phrase search.
322 * Added prefix "yaz_" for the functions log_init.., log_file.. and
323 log_mask_str. This was done to avoid name conflicts with other libraries
324 (such as other PHP extensions).
326 Added raw OID member for preferred record syntax (request_format_raw)
327 and returned record syntax (output_format_raw) for backend fetch method.
329 Config file yaz-config now accepts options so that it returns specific
330 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
332 Shared library support for UNIX using GNU libtool.
334 * Modified backend interface. Request/Response struct's replaced by
335 one read/write C struct. For example bend_fetchrequest and
336 bend_fetchresult have been replaced by single bend_fetch_rr struct.
337 Every handler - even search has to be registered in bend_init
338 handler. This means that the YAZ library no longer refers to
339 external functions and it makes it possible to make the whole
340 thing a single DLL/SO.
342 Added Segment handler for backend server.
344 Added Zmbol/Zebra administrative functions to YAZ client.
346 Threaded frontend server on UNIX (when POSIX Threads are available).
347 Starting the server with option -T enables multi-threading.
351 Added configure option --enable-comp/disable-comp to control use
352 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
353 located in sub directory asn.
355 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
356 in ${exec_prefix}/bin along with the other programs yaz-client and
359 GNU automake used to maintain makefiles.
363 Changed retrieval module so that we can load records with no abstract
364 syntax defined. Tagpaths in these records are fully composed of string
367 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
371 On UNIX, the generated makefile now supports a proper 'make install'.
372 The prefix can be set via GNU configure to set the install location
373 (default is /usr/local).
375 * YAZ programs client and ztest were renamed to yaz-client and
376 yaz-ztest to avoid conflicts when users install YAZ in "standard"
377 locations, such as /usr/bin,/usr/local/bin,etc.
379 * YAZ Header files were moved from include to include/yaz. YAZ Header
380 files are referred to as include <yaz/log.h> rather than <log.h>.
381 The YAZ include path (-I ..) is therefore the same as before. Programmers
382 should update their #include statements or use -Ipath/include/yaz
383 instead. The main motivation for doing this change is that YAZ header files
384 can be installed in "standard" locations /usr/include,/usr/local/include
385 without introducing conflicts, since ALL YAZ header files are stored
386 in subdirectory yaz (under /usr/include for example).
388 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
389 rather than project/workspace files. We switched because project files
390 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
393 Changed name of logging function, logf, to yaz_log, to prevent name
394 clash with some math-log functions. The YAZ header log.h defines logf
395 to yaz_log (#define) so there should be no incompatibilities by this
398 Added bend_start/bend_stop handlers for server. These handler are
399 called on start/stop of server. For windows they are called whenever
400 a service is started/stopped.
402 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
403 a fairly small ASN.1 compiler written in Tcl. The compiler is located
404 in util/yc.tcl. The auto-generated C code structures are, in a few
405 cases, incompatible with the old decoders. There are differences in the
406 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
407 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
408 The preprocessor variable ASN_COMPILED is defined when the compiled
409 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
410 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
411 wish to use the old encoders/decoders you can specify --disable-yc
414 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
415 version so that it supports both new - and old version of DB Update
417 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
418 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
419 change. The name parameter can be set to 0 in which no name is specified
420 for the construction. The macros odr_implicit and odr_explicit sets name
421 parameter to zero for the construction involved. New macros
422 odr_implicit_tag and odr_explicit_tag are similar to the others,
423 except that a name parameter is added. For programmers' that don't use
424 ODR they probably only need to change the call to z_APDU and z_External.
426 Added access control facility by interfacing the TCP wrapper library.
427 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
428 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
429 name of the daemon and enables the access control as specified in
430 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
432 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
433 den Dool <H.M.vdnDool@kub.nl>.
435 Added reference ID parameter to most functions in server API - refer
436 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
438 Changed name of ccl library to libccl.a (was ccl.a).
440 Fixed bug in decoder for Explain (Category TargetInfo).
442 Added support for GNU readline in client. Thanks to Jacob Poulsen
443 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
445 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
446 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
447 IMPLEMENTATION! This change was made to the development version before
448 the ZIG decided to retract the amendment. If any users MUST be
449 compatible with the original Update definition, PLEASE CONTACT US, and
450 we will include a separate definition corresponding to the old Update
451 ES. Note that because of the change to the ASN.1 of the
452 TaskPackageRecordStructure we cannot define a single structure that
453 will support both versions.
455 * Added const modifier to buffer parameter for some ODR/BER encoding
456 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
457 completeWAIS, odr_dumpBER.
459 Fixed bug in client.c which caused a crash when a scanResponse didn't
460 contain positionOfTerm.
462 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
463 * will cause an error in a client if a non-YAZ target sends both a
464 * list of Scan entries and non-surrogate diagnostics.
466 Retrieval module enhancements. Tag sets may be typed in the reference
467 to it. From the .abs-file the "tagset" directive takes a third optional
468 integer type for the tag set referenced. From a .tag-file the "include"
469 directive takes a third optional type as well. The old "type" directive
470 in the tag set itself is still recognized but acts as the default type
473 Backend interface change. Individual Scan terms returned from bend_scan
474 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
475 in include/backend.h.
477 Retrieval module enhancements. Multiple tag sets and attribute sets may
478 be specified in abstract syntax specs. Revised the error/warning for
479 logging messages reported by the retrieval module when reading the
482 Object Identifier system (oid_..) changed. The API is backwards
483 compatible but the oid-routines now allocates new OID's when needed.
484 Raw OID's may be specified in oid_getvalbyname.
486 YAZ now uses GNU configure to generate Makefile(s).
488 * Minor changes in some of the member names of DeleteResultSetRequest and
489 DeleteResultSetResponse. See include/proto.h.
491 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
492 and added member 'languages' in TargetInfo (which was missing).
494 Changed the way attribute sets are handled in the retrieval
495 module. These are now cached, just like the abstract syntaxes
498 Changed YAZ so that it links with compiled ASN.1.
500 Added Explain-schema definitions and mapping routines. The following
501 Explain categories have been implemented: AttributeDetails,
502 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
504 Fixed minor bug in Windows version of Server Library.
506 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
508 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
510 Added EXTERNAL: UNIverse Resource Report (non-standard).
512 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
513 ENUMERATED and SET OF.
515 * Added 'const' to some of the char pointer arguments for the
516 functions, data1_read_node, data1_getelementbytagname,
517 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
520 Fixed bug in data1_insert_taggeddata - the last_child member of
521 parent wasn't initialised.
523 * Changed data1_read_record and data1_read_node so that the supplied
524 "SGML"-buffer is read-only. In particular the resulting data1 - tree
525 doesn't refer to any parts of the "SGML"-buffer.
527 Fixed bug in server library (Windows version of statserv_remove).
529 * Changed code so that it compiles as C++. The type definition
530 of Odr_fun which is a member of Odr_arm was changed. The result is,
531 that an explicit typecast is needed for the fun pointer when
532 using Odr_arm - as in:
533 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
535 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
537 Implemented the new structured date and time definition as approved
538 by the ZIG. Added schemaId element to the specificTag in Espec-1
539 (also approved at the last ZIG). Thanks to RVDM.
541 Added some Object identifiers (RVDM).
543 Changed the Update Extended Service (RVDM).
545 Added command "refid" to client which specifies referenceId for
546 the following requests.
548 Implemented extended service handling for server. See ztest.c
549 for an example as well as backend.h. New handlers are registerd
552 * Changed interface for sort in server.
554 Added new members to statserv_options_block. It allows a server
555 to read options from another source than just the command line. Thanks
556 to Charles Woodfield.
558 * Changed definition of Z_Triple in file prt-grs.h - member boolean
559 renamed to zboolean. Some C++ compilers complained about the name.
561 Minor changes to gils.abs. Added index 's' (sort) on title
562 and date/time-last-modified.
566 Fixed bug in server library regarding inetd mode (-i). This bug
567 was introduced by release 1.4.
571 Added sort facility in client and backend server interface.
573 Fixed problem with dependencies in Makefile(s).
575 Fixed bugs for encoders/decoders of extended services and
578 Implemented sub-tree feature for schemas. Sub-trees are
579 referenced in *.abs-files. See explain.abs for an example
580 of the use of this feature.
582 Modified bib1.att; local attributes for ANY didn't include
583 ANY itself (only affects use of the retrieval module).
585 Fixed bug in plain SGML reader in function data1_read_node:
586 tags with prefix "var" was incorrectly interpreted as variants.
588 Added feature "sub-schemas" to enable references to - and definitions
589 of - group of elements.
591 * Removed member parent from type data1_element (in data1.h).
593 Implemented function odr_nullval() that returns the value of
596 * Removed member num_children from data1_node (in data1.h).
598 Made NT service interface part of the server library. The
599 function statserv_main uses the NT service when required and
600 calls the statserv_start / statserv_close routines.
602 Routine zget_SearchRequest and zget_PresentRequest fills
603 resultSetName/Id member with "default" instead of "Default".
605 Fixed memory leak in server. Request queue member wasn't freed.
607 Fixed nmem_exit so that memory is freed.
611 Revised the CCL parser utility to be thread safe.
613 Added function, oid_ent_to_oid, to replace the function
614 oid_getoidbyent, which is not thread safe.
616 * Added nmem_init and nmem_exit to initialize and release
617 NMEM resources. Function nmem_init should be called once in the
618 initial thread before NMEM/ODR is used. statserv.c and client.c
619 have been changed accordingly. The change was necessary to make
620 NMEM thread safe. The NMEM memory pool is shared amongst threads
621 in a process. Unix-based applications will still work fine without
624 Added NT Services interface for the the Z39.50 (statserv) Server.
625 Refer to the ztest.c source on the usage.
627 Windows 95/NT port using MSVC5.0. Project files are included in the
630 * Defined new 'global' handle for the retrieval (data1) system. The
631 new handled, data1_handle, describes the state of the data1 system.
632 This handle is passed as first argument to virtually all
633 data1 related routines. The functions data1_create and data1_destroy
634 creates and destroys a data1 handle respectively.
636 Added ODR encode stream member to all backend request structures
637 init, search, scan etc. This stream should be used to allocate all
638 memory used for the response when thread safe operation is needed.
640 Changed the comstack utility, cs_addstr, to be thread safe. The
641 returned hostname string returned by the function is now part the
644 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
645 function. The cs_straddr takes a COMSTACK handle as argument, so this
646 function must be used after cs_create and before bind/connect.
647 This function is thread safe.
649 Moved test server to 'ztest' directory - generic server code still
650 in 'server' directory.
652 Made prefix query (pquery.c) utility thread safe.
654 Added new function modifier YAZ_EXPORT to 'export' public DLL
655 functions when using windows (see include/yconfig.h).
657 Added definitions to the OID database (util/oid.c) (RVDM).
659 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
661 Added call to ccl_rpn_delete in client program.
663 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
664 release of RPN structure.
666 Added support for C++, headers uses extern "C" for public definitions.
667 With input from RVDM.
669 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
670 Thanks to Ronald van der Meer (RVDM).
672 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
674 Added support for private extensions to the OID database
675 (oid_setprivateoids()). Thanks to RVDM.
677 Added optional, physical ANY (key replication)
679 Fixed null-reference problem in GRS-1 output filter.
681 Proximity operator added to Prefix Query Format (PQF).
683 In test client command "base" accepts multiple databases.
685 Fixed bug in cs_close stack that caused trouble with WINSOCK.
689 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
691 Smallish bug-fixes in the new encoders/decoders (explain).
693 Bug fixed in DeleteRequest.
695 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
697 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
699 Added SOIF syntax (using private OID for now) to retrieval module and client.
701 Added Update extended service.
703 Added SearchResult-1 additional info structure.
705 Added optional CCL (ISO8777) interpreter as separate module. Available
708 --- 1.2 1996/6/10 (1st anniversary release)
710 Added Summary record syntax. Lightly tested.
712 Added OPAC record syntax. Untested.
714 Added ResourceReport service encoders/decoders. Untested.
716 Fixed bug in z_Unit - wrong tagging on unitSystem.
718 Fixed bug in the DiagRecs decoder.
720 Added options for max PDU size and session timeout to frontend-server.
722 Added documentation of query-language parsers and other supporting utilities.
724 [frontend-server] Added Attribute set to the bend_scanrequest API.
726 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
727 surrogate diagnostics were generated.
729 [retrieval] Allow multiple local values for attribute.
731 [retrieval] Allow multiple attributes per element in .abs files. index type.
733 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
737 Minor changes, mostly specific to Zebra's requirements (retrieval)
741 Repaired bug in frontend server when running multiple listening
742 endpoints in dynamic mode.
744 z_External() now won't break if a known, ASN.1 value comes encapsulated
745 in an octet-string. The value will pass through unmodified in an Odr_oct.
747 Added a bit of code to the demo client to decode & display
748 ASN.1-structured records represented in the octet-aligned branch of
749 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
751 Added z_ext_getentbyref() to the ASN module. Doc updated.
753 * Completed the SCAN definition in the ASN module. This may break SCAN
754 code based on older YAZ-versions at compile-time. The fix is easy -
757 * Added 'displayTerm' and OtherInformation to the TermInfo structure
758 under the SCAN definition. Remember to initialize this, server-people.
760 Comstack should now support the WAIS protocol in TCP/IP mode. Note
761 that this does not extend to ODR and ASN.
763 Comstack allows insertion of established socket (primarily for
764 inetd-operation of servers). Doc updated.
766 Front-end server can now start from the inetd in TCP mode. Doc
773 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
774 the rank and record number.
776 Adjustments to the frontend server.
778 Fixed diagnostic BER dumper. It ignored the file argument.
782 Various changes to retrieval module.
784 Changed the union discriminators of the protocol files from enums to
785 ints paired with #defines.
787 *Changed oident.class to oident.oclass to avoid a reserved word in C++
790 *Changed operator in the RPN structure to 'roperator', again to avoid a
793 Fixed problems in Explain decoders/encoders.
797 Memory bug in log module fixed.
801 Occasional malloc() of 0 bytes fixed in d1_espec.c.
803 Bug in Explain DatabaseInfo module fixed.
805 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
809 The shift to v1.0 signals that we now consider the *core* functionality
810 of YAZ reasonably stable (the core being more or less equivalent to
811 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
812 tested (Explain not at all - though that will happen soonish).
814 Minor changes to code to support Windows port.
816 Various minor changes after we're getting to use GRS-1 & co. more.
818 Added Espec-1 format.
820 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
821 of the protocol and it cannot be selected when encoding (maps into 'string'
822 when decoding). Needed to talk to some servers.
824 Demo client can request simple element set names.
826 Added Diagnostic Format encoders/decoders.
828 Added simple Close handling to frontend server (no hooks for resource
829 reporting yet), and demonstration client.
831 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
835 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
836 handled incorrectly when records were requested in the searchResponse. This
837 will only affect you if you use the frontend-server.
839 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
840 Test-client will ask for and print GRS1. Ztest will return dummy records
843 Added Explain encoders/decoders to the service-level API. Untested.
845 Added Extended Services: Item Order encoders and decoders to the Service-
846 level API. Untested. We could use a recent copy of the pertinent bits
847 of the ILL protocol to add those bits.
849 Added diagnostic format 1 encoders/decoders to the service-level API.
852 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
853 odr_cons.c, which causes a more correct output.
855 Fixed handling of searchRequest in frontend server. NextResultSetPosition
856 was always set to 0 when no records were requested in the searchRequest.
858 * Added better external-handling. This shouldn't harm old code that
859 *encodes* externals. It can break code that looks for a
860 'single-ASN1-type' representation, since those types that are known
861 are now decoded immediately. Look at the SUTRS sample code in
862 seshigh.c and client.c. Documentation updated.
864 Handling of structured records in bend_fetchresponse. Length -1 marks
865 structured record, type is deduced from format field.
868 Fairly quick maintenance release to add SUTRS support.
870 Fixed handling of SUTRS records in the demonstration client.
872 * Added format field to the bend_fetchrequest and bend_fetchresponce
873 structures of the backend API (frontend server). When the record is
874 returned, the value of the format field is mapped to an OID. The
875 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
876 of the record. The special value VAL_NONE in the bend_request means
877 that no specific format was requested by the client. Documentation
878 updated accordingly. Test server (ztest) will return a fixed dummy
879 SUTRS record if your client requests SUTRS.
881 Documentation updated accordingly.
883 You can now set external libraries and RANLIB support in the top-level
887 First public release.