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