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