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