1 Possible compatibility problems with earlier versions marked with '*'.
5 Frontend server now transfers memory from decoded packages to stream
8 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
11 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
12 the ZOOM Abstract API. The older names for the same options are still
13 also supported for the benefit of old applications.
15 ZOOM-C supports "implementationId" and "implementationVersion" options
16 to go along with "implementationName". These allow the user code to
17 specify identification strings to be sent to servers.
18 Add OID for the new ExtLite attribute set.
20 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
21 as requested/supplid by Ere Maijala <ere@atp.fi>
23 For generic frontend server, reverse the order of
24 "toolkit-supplied / application-supplied" strings sent as implementationId,
25 Name and Version. Also, remove the spaces around the slash. This brings
26 the GFS in line with the behaviour of ZOOM-C on the client side.
28 Add function ZOOM_scanset_display_term.
30 yaz-client shows scan displayTerm if present.
32 Utility yaz-iconv is now installed by default along with the man page
35 Extend configure check for OpenSSL to use pkg-config where available (such
38 Incorporate patch by Morten Bogeskov which allows a Unix file socket
39 server to specify uid/gid/mask for socket using the format
40 unix:[user=uid,][group=gid,][umask=mask,]file=path
41 If file= is omitted the existing format is assumed, e.g.
43 in which case the mask is 0666 (rw for everybody).
45 Major restructure of YAZ source. All source in libyaz is in src directory.
46 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
47 util (utility programs such as ASN.1 compiler, yaz-marcdump).
49 Added man page for utility yaz-marcdump (used to be called marcdump).
50 yaz-marcdump is installed by 'make install'.
52 Fixed a memory leak in Generic Frontend Server that occurred when decoding
53 of incoming package failed.
55 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
57 Change prototype of odr_perror: add const to message string.
59 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
61 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
62 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
63 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
64 DNS lookup. There should not be any compatibility problems with this
65 assuming that blocking=1 or 0 is used.
67 Fix bad reference in UNIX comstack in function cs_addrstr.
69 Fix for compilation on AIX.
71 The generic front-end server (server/seshigh.c) now supports returning
72 Init diagnostics to the client in User-information-field, in
73 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
79 Allow any CQL relation (not just all,any,exact,scr).
81 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
82 that features the same UI.
84 Implemented command update0 in YAZ client which is equivalent to
85 update but uses old of Ext Update ASN.1.
87 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
88 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
89 Previously no OID was used for this info.
91 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
92 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
93 returns 'malformed search term' otherwise.
95 SortResponse member resultCount now set to NULL in sort handler of
98 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
101 Add three new utility functions for translating OIDs between various
102 formats -- symbolic name such as "Usmarc", minus-1-terminated int
103 arrays and dotted strings such as "1.2.840.10003.9.5.1":
104 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
105 char *oid_to_dotstring(const int *oid, char *oidbuf);
106 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
108 Reverted modifications for ES Update definition for z_IU0Update
109 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
110 is back to YAZ 2.0.2.
112 String value attributes for CCL parser.
114 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
115 which their FirstSearch server returns in Init responses, sometimes
116 carrying useful diagnostic information when Init fails. This has the
117 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
118 "z39.50/oclcui.asn", where its definition is somewhat different from
119 what OCLC document on their web-site, as required to interoperate with
122 Support for anonymous authentication in yaz-client. Use the command
125 * Fix the OID of the Index Data-local "admin" Extended Service from
126 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
127 the 1000, which indicates a locally-defined OID, was a mistake.
131 Fix CCL directive @case handling so that it affects string match for
132 both CCL keywords and qualifiers.
134 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
135 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
136 Decoder has been updated with ASN.1 changes as listed in
137 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
138 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
139 z_IUUpdate, remains unchanged.
141 ZOOM_record_get may now return a record in a specific character set.
142 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
143 "from" is the character set of record as returned by target. "to" is
144 the character set to be returned. If omitted, "to" is UTF-8.
146 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
148 New ODR utility, odr_getelement, which returns name of element for
149 which encoding/decoding failed.
151 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
152 in cases where a required element was omitted.
154 Bug fix: some MARC8 sequences were not converted.
156 New ZOOM option "step" which specifies number of records to be
157 retrieved in one chunk. Used in conjunction with "start" and "count".
159 SRW support for yaz-client. Use scheme http: to use it, e.g.
162 yaz-client no longer does (un)intelligent character set conversions
163 by default. Can be enabled with charset and marc_charset commands.
165 xmalloc trace fix for 64-bit systems such as DEC alpha.
167 Solaris 2.6 compile fix.
169 New function, cql_strerror() translates SRW error codes, as returned
170 by cql_transform_error(), into human-readable English strings. Used
171 in yaz-client diagnostics when appropriate.
173 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
174 converts it into a type-1 query which is sent to the server. This
175 makes CQL available for use with all Z-servers, as opposed to the tiny
176 minority that can handle CQL queries themselves.
180 New Debian package layout similar to the Redhat Package layout.
182 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
183 and search result respectively.
187 Redhat package is now several packages: libyaz (runtime libraries),
188 libyaz-devel (development and documentation, and yaz (utility programs).
189 Package spec file by Morten Bøgeskov.
191 New member 'schema' in struct bend_fetch_rr which the name of requested
192 schema (SRW/SRU) for record (or NULL if none was given). The fetch
193 handler MAY set this to reflect the schema of the returned record.
195 New member 'display_term' in struct scan_entry. GFS now sets member entries
196 and allocates scan entries to be filled by user scan handler. In previous
197 version, entries member was allocated by the scan handler. That still works,
198 but the GFS will ignore member display_term - assuming it was NOT set by
199 the handler. The fact that the GFS now allocates the entries both allows
200 for new members and makes a scan handler easier to write.
202 Fix CQL lex buffer overflow.
204 SRW/SRU recordPacking. For SRW default recordPacking is string. For
205 SRU default recordPacking is string.
207 SRU protocol support for frontend server.
209 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
211 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
213 Added scan for the ZOOM shell (zoomsh).
217 * String Identifers for Schemas (Amendment 5).
218 http://lcweb.loc.gov/z3950/agency/amend/am5.html
219 Old definition for schema
220 Odr_oid *schema; /* OPT */
225 Z_InternationalString *uri;
226 #define Z_Schema_oid 1
227 #define Z_Schema_uri 2
230 * resultCount parameter to Sort Response (Amendment 1).
231 http://lcweb.loc.gov/z3950/agency/amend/am1.html
233 Support for SRW 1.0 over HTTP. This is an optional feature and
234 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
237 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
238 on the same port. SRW SearchRetrieveRequests are mapped
239 to bend_init,bend_search,bend_fetch,bend_close.
241 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
243 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
244 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
246 ZOOM connections are SRW based if schem http is used for hostname
247 in connect, e.g. z = ZOOM_connection_new("http://myserver");
248 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
250 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
251 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
252 distance=n, order=true/false, relation=le, prox unit=word. If
253 n is omitted, distance 1 is used.
255 Fixed problem with C compiler include path in wrong order.
257 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
258 on Solaris. Patch from Ko van der Sloot.
260 New MARC decode API. All new functions operate on a yaz_marc_t
261 handle. The most important new functions are: yaz_marc_create,
262 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
263 decode and destroy respectively. Decoder can produce formats
264 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
265 include/yaz/marcdisp.h.
267 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
268 to UTF-8, UCS-32, wchar_t or Latin-1.
270 * Prototypes for yaz_iconv_-functions moved to separate header
271 include/yaz/yaz-iconv.h.
273 Make a few private functions 'static' in unix.c. This prevents
274 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
276 For ZOOM connection, the options targetImplementation{Id,Name,Version}
277 are set when Init Response is received.
279 New function ZOOM_connection_error_x similar to ZOOM_connection_error
280 but returns diagnostic set as well.
282 New function yaz_strerror which is a portable wrapper for
283 strerror/strerror_r/GetLastMessage.
285 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
286 is returned for MARC. If type is "oai", then OAI MARC is returned.
288 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
293 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
295 Fix bad race conditions on SIGTERM and terminate gracefully in
298 Move retrieval (data1) module to Zebra since nobody seems to be
301 Add GRS-1 render for ZOOM using same format as yaz-client.
305 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
307 Fix broken ESpec handling in data1 module.
309 SGML reader parses comments and makes them part of the data1 tree.
311 Added several type casts so that YAZ compiles as C++ code.
313 ZOOM didn't handle PDU encoding failures properly.
315 Added more Bib-1 diagnostics (approved extensions).
317 GNU configure: better check for iconv.
319 More portable use of accept, getpeername. Check for socklen_t. Use
320 int/size_t if socklen_t is not defined.
324 PQF parser rejects bad queries - including those with extra
325 characters in them. PQF parser used to silently ignore that.
326 Cleaner API for PQF added, which allows you to get detailed
327 error information for bad queries (see yaz/pquery.h).
329 Fixed bug in ZOOM_record_get for type "database".
331 Implemented mini iconv library supporting conversions between
332 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
334 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
338 Fixed ZOOM C record cache so that preferredRecordSyntax and
339 elementSetName is used to check for already fetched records.
343 Added three members in bend_initrequest structure to facilitate
344 character set negotiation.
346 Fixed a bug in frontend server that could cause indefinite
347 loops under rare conditions.
349 Revised character set utilities (charneg.h) so that encoding
350 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
352 For PQF, directive @term <type> sets term type for Scan/Search.
353 Here <type> is general, string, numeric, null. The term type
354 is inherited - just like @attr.
356 New call odr_set_charset that sets character set conversion for
357 international-strings on a ODR stream. Prototype is:
358 int odr_set_charset(ODR o, const char *to, const char *from);
359 The InternationalString is still represented as C string in YAZ
360 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
361 won't). On the protocol level, you can use any encoding.
363 Support for UNIX sockets in ZOOM.
365 Solaris recv sometimes returns errno == ENOENT. It is treated as
366 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
368 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
369 both client and server. Code by Morten Bøgeskov.
373 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
374 that they can be used directly from Visual Basic. You must recompile
375 your windows APP if you're using ZOOM.
377 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
378 Commands "lang" and "charset" sets language and character set respectively.
379 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
380 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
382 Attributes from multiple CCL fields may be OR'ed rather than merged
383 using directive "@field or". Fields are still merged by default -
384 equivalent to "@field merge".
386 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
389 Fixed bug in zget for parameter ExtendedServicesResponse.
395 Added PQF feature: '@attr type=value' may be written as '@type=value'.
397 Client displays USR.1:SearchResult-1 (hits per term).
399 Additional Search Info for search in Generic Frontend Server.
401 Fixed CCL parsing of "field=s".
403 WIN32 installer - using the excellent NSIS software from nullsoft.
405 Fixed CCL parsing of "field = - <number>".
407 Added function yaz_marc_decode that decodes MARC for line mode
408 display or XML (similar to that used by JZKit).
410 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
411 Z39.50. But ISO/ILL was, however.
413 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
414 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
416 http://lcweb.loc.gov/z3950/agency/amend/am2.html
417 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
421 New YAZ client features: Command completion and new commands:
422 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
423 Code provided by Jacob Poulsen.
425 New call oid_trav, that visits all registered OIDs via callback.
427 Function ZOOM_record_get now returns const char pointer rather than
428 void pointer. It saves a lot of type casts.
430 For YAZ client, command "auth" now allows you to set authentication
431 in IdPass style. It is enabled when three tokens are given - order
432 is user, group and password.
434 Fix memory leaks in MARC record handling for ZOOM.
436 New option for YAZ client, -k <kilobytes> that sets
437 maximum record size. Similar to -k option for generic frontend
438 server and yaz-ztest.
440 More fixes for scan. Non-zero stepSize handled. OID's fixes.
442 Prefix query parser reports "fail" when bad attribute set is given.
444 Fix in MARC decoder. Proximity logging. Fix for attribute set
445 in scan handler for server. Patches by Shigeru Ishida.
447 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
450 Configure option --with-openssl=<dir> now works when a directory is
451 specified. Patch provided by Morten Bøgeskov.
453 New option for YAZ client, -u <auth>, that sets authentication.
455 ZOOM fix: error information was sometimes "missing", since error
456 was cleared/reset too when it shouldn't.
458 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
462 Scan for ZOOM API. New object ZOOM_scanset. New functions
463 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
464 ZOOM_scanset_destroy.
466 New ZOOM function, ZOOM_connection_last_event, that returns type
467 of last event (such as "receive data", "send data", "apdu received",
470 New ZOOM option, schema, that specifies schema for retrieval.
472 New CCL feature. Qualifiers can be aliases for one or more
473 other qualifiers (if more than one is given, OR is used).
475 ZOOM uses named result sets if target supports it.
477 Two new YAZ client commands: . (dot, which sources a script of YAZ
478 client commands), and ! (to execute shell command.). Implemented
481 Working on Debian packages.
485 YAZ client enables named result sets only if target supports it.
487 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
489 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
490 with key="host" to get same result.
492 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
493 Function Z3950_resultset_record(s) returns references to records
494 "owned" by resultset. To become owner use Z3950_record_clone.
496 Function z_ext_record handles Extended Services. Thanks to
501 CCL Parser fix: ignore token comma when dealing with and-lists.
503 Documentation updates for COMSTACK.
505 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
506 Changed prototype Z3950_records. For some functions, int parameters
507 were changed to size_t.
509 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
512 New MARC decode/display function, marc_display_exl, which properly rejects
513 non-ISO2709 records. YAZ client uses it.
517 Fix bug: local attribute set wasn't set correctly in PQF strings.
521 * Old Z39.50 codecs no longer supported.
523 Added ZOOM C binding. See http://zoom.z3950.org/
525 Renamed states for COMSTACKs to avoid confusion with events.
527 Implemented cs_look and proper cs_rcvconnect.
529 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
531 Configure detects POSIX threads on OpenBSD.
533 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
534 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
536 When error is returned from present handler, non-surrogate diagnostic
537 is returned in present response (and fetch handler is no longer called).
539 * Minor adjustments to pquery parser (PQF). Token characters may be
540 escaped by using backslash (C-style).
542 PQF parser allows string attribute values to be specified. For @attr,
543 non-numeric characters after the equal-sign are treated as strings
544 (e.g. @attr 9=title).
546 CCL trunction character may be defined (@truncation in file)
548 * function zget_ExtendedServicesRequest sets waitAction to
549 waitIfPossible (was wait).
551 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
554 CCL operator names may be set in field definition files (CCL_bibset).
555 See ccl/bib1 for an example.
557 Fixes in ASN.1 compiler for C++ compatibility.
559 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
560 and "op_or" to avoid conflict with C++.
562 Fixed problem with GNU readline detection on Redhat 7.0.
564 Added step-size for Scan backend handler.
566 Fixed bug that made the frontend server crash when no attribute
567 set was specified for scan.
569 Front-end server automatically switches to original working directory
570 when installed as an NT service. Previously -w had to be specified to
573 Added extended attributes for retrieval module (data1), so that data1
574 records carry d1_readXML/SGML attributes. d1_read also supports
575 null-data rules ( <tag/>)
577 On UNIX when POSIX threads are available, a separate library libyazthread
578 is created. Programmers should link with that library and the yaz library
579 when using threads. The reason for the split was that some applications
580 on Linux, such as Apache, doesn't work well when using shared objects that
583 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
584 (or any frontend server) in SSL mode by specifying ssl: followed by
585 address. Only tested on UNIX.
587 Added feature for CCL module. Virtual structure s=al or s=ol generates
588 and-list and or-list respectively instead of phrase search.
592 * Added prefix "yaz_" for the functions log_init.., log_file.. and
593 log_mask_str. This was done to avoid name conflicts with other libraries
594 (such as other PHP extensions).
596 Added raw OID member for preferred record syntax (request_format_raw)
597 and returned record syntax (output_format_raw) for backend fetch method.
599 Config file yaz-config now accepts options so that it returns specific
600 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
602 Shared library support for UNIX using GNU libtool.
604 * Modified backend interface. Request/Response struct's replaced by
605 one read/write C struct. For example bend_fetchrequest and
606 bend_fetchresult have been replaced by single bend_fetch_rr struct.
607 Every handler - even search has to be registered in bend_init
608 handler. This means that the YAZ library no longer refers to
609 external functions and it makes it possible to make the whole
610 thing a single DLL/SO.
612 Added Segment handler for backend server.
614 Added Zmbol/Zebra administrative functions to YAZ client.
616 Threaded frontend server on UNIX (when POSIX Threads are available).
617 Starting the server with option -T enables multi-threading.
621 Added configure option --enable-comp/disable-comp to control use
622 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
623 located in sub directory asn.
625 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
626 in ${exec_prefix}/bin along with the other programs yaz-client and
629 GNU automake used to maintain makefiles.
633 Changed retrieval module so that we can load records with no abstract
634 syntax defined. Tagpaths in these records are fully composed of string
637 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
641 On UNIX, the generated makefile now supports a proper 'make install'.
642 The prefix can be set via GNU configure to set the install location
643 (default is /usr/local).
645 * YAZ programs client and ztest were renamed to yaz-client and
646 yaz-ztest to avoid conflicts when users install YAZ in "standard"
647 locations, such as /usr/bin,/usr/local/bin,etc.
649 * YAZ Header files were moved from include to include/yaz. YAZ Header
650 files are referred to as include <yaz/log.h> rather than <log.h>.
651 The YAZ include path (-I ..) is therefore the same as before. Programmers
652 should update their #include statements or use -Ipath/include/yaz
653 instead. The main motivation for doing this change is that YAZ header files
654 can be installed in "standard" locations /usr/include,/usr/local/include
655 without introducing conflicts, since ALL YAZ header files are stored
656 in subdirectory yaz (under /usr/include for example).
658 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
659 rather than project/workspace files. We switched because project files
660 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
663 Changed name of logging function, logf, to yaz_log, to prevent name
664 clash with some math-log functions. The YAZ header log.h defines logf
665 to yaz_log (#define) so there should be no incompatibilities by this
668 Added bend_start/bend_stop handlers for server. These handler are
669 called on start/stop of server. For windows they are called whenever
670 a service is started/stopped.
672 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
673 a fairly small ASN.1 compiler written in Tcl. The compiler is located
674 in util/yc.tcl. The auto-generated C code structures are, in a few
675 cases, incompatible with the old decoders. There are differences in the
676 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
677 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
678 The preprocessor variable ASN_COMPILED is defined when the compiled
679 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
680 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
681 wish to use the old encoders/decoders you can specify --disable-yc
684 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
685 version so that it supports both new - and old version of DB Update
687 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
688 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
689 change. The name parameter can be set to 0 in which no name is specified
690 for the construction. The macros odr_implicit and odr_explicit sets name
691 parameter to zero for the construction involved. New macros
692 odr_implicit_tag and odr_explicit_tag are similar to the others,
693 except that a name parameter is added. For programmers' that don't use
694 ODR they probably only need to change the call to z_APDU and z_External.
696 Added access control facility by interfacing the TCP wrapper library.
697 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
698 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
699 name of the daemon and enables the access control as specified in
700 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
702 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
703 den Dool <H.M.vdnDool@kub.nl>.
705 Added reference ID parameter to most functions in server API - refer
706 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
708 Changed name of ccl library to libccl.a (was ccl.a).
710 Fixed bug in decoder for Explain (Category TargetInfo).
712 Added support for GNU readline in client. Thanks to Jacob Poulsen
713 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
715 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
716 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
717 IMPLEMENTATION! This change was made to the development version before
718 the ZIG decided to retract the amendment. If any users MUST be
719 compatible with the original Update definition, PLEASE CONTACT US, and
720 we will include a separate definition corresponding to the old Update
721 ES. Note that because of the change to the ASN.1 of the
722 TaskPackageRecordStructure we cannot define a single structure that
723 will support both versions.
725 * Added const modifier to buffer parameter for some ODR/BER encoding
726 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
727 completeWAIS, odr_dumpBER.
729 Fixed bug in client.c which caused a crash when a scanResponse didn't
730 contain positionOfTerm.
732 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
733 * will cause an error in a client if a non-YAZ target sends both a
734 * list of Scan entries and non-surrogate diagnostics.
736 Retrieval module enhancements. Tag sets may be typed in the reference
737 to it. From the .abs-file the "tagset" directive takes a third optional
738 integer type for the tag set referenced. From a .tag-file the "include"
739 directive takes a third optional type as well. The old "type" directive
740 in the tag set itself is still recognized but acts as the default type
743 Backend interface change. Individual Scan terms returned from bend_scan
744 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
745 in include/backend.h.
747 Retrieval module enhancements. Multiple tag sets and attribute sets may
748 be specified in abstract syntax specs. Revised the error/warning for
749 logging messages reported by the retrieval module when reading the
752 Object Identifier system (oid_..) changed. The API is backwards
753 compatible but the oid-routines now allocates new OID's when needed.
754 Raw OID's may be specified in oid_getvalbyname.
756 YAZ now uses GNU configure to generate Makefile(s).
758 * Minor changes in some of the member names of DeleteResultSetRequest and
759 DeleteResultSetResponse. See include/proto.h.
761 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
762 and added member 'languages' in TargetInfo (which was missing).
764 Changed the way attribute sets are handled in the retrieval
765 module. These are now cached, just like the abstract syntaxes
768 Changed YAZ so that it links with compiled ASN.1.
770 Added Explain-schema definitions and mapping routines. The following
771 Explain categories have been implemented: AttributeDetails,
772 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
774 Fixed minor bug in Windows version of Server Library.
776 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
778 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
780 Added EXTERNAL: UNIverse Resource Report (non-standard).
782 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
783 ENUMERATED and SET OF.
785 * Added 'const' to some of the char pointer arguments for the
786 functions, data1_read_node, data1_getelementbytagname,
787 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
790 Fixed bug in data1_insert_taggeddata - the last_child member of
791 parent wasn't initialised.
793 * Changed data1_read_record and data1_read_node so that the supplied
794 "SGML"-buffer is read-only. In particular the resulting data1 - tree
795 doesn't refer to any parts of the "SGML"-buffer.
797 Fixed bug in server library (Windows version of statserv_remove).
799 * Changed code so that it compiles as C++. The type definition
800 of Odr_fun which is a member of Odr_arm was changed. The result is,
801 that an explicit typecast is needed for the fun pointer when
802 using Odr_arm - as in:
803 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
805 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
807 Implemented the new structured date and time definition as approved
808 by the ZIG. Added schemaId element to the specificTag in Espec-1
809 (also approved at the last ZIG). Thanks to RVDM.
811 Added some Object identifiers (RVDM).
813 Changed the Update Extended Service (RVDM).
815 Added command "refid" to client which specifies referenceId for
816 the following requests.
818 Implemented extended service handling for server. See ztest.c
819 for an example as well as backend.h. New handlers are registerd
822 * Changed interface for sort in server.
824 Added new members to statserv_options_block. It allows a server
825 to read options from another source than just the command line. Thanks
826 to Charles Woodfield.
828 * Changed definition of Z_Triple in file prt-grs.h - member boolean
829 renamed to zboolean. Some C++ compilers complained about the name.
831 Minor changes to gils.abs. Added index 's' (sort) on title
832 and date/time-last-modified.
836 Fixed bug in server library regarding inetd mode (-i). This bug
837 was introduced by release 1.4.
841 Added sort facility in client and backend server interface.
843 Fixed problem with dependencies in Makefile(s).
845 Fixed bugs for encoders/decoders of extended services and
848 Implemented sub-tree feature for schemas. Sub-trees are
849 referenced in *.abs-files. See explain.abs for an example
850 of the use of this feature.
852 Modified bib1.att; local attributes for ANY didn't include
853 ANY itself (only affects use of the retrieval module).
855 Fixed bug in plain SGML reader in function data1_read_node:
856 tags with prefix "var" was incorrectly interpreted as variants.
858 Added feature "sub-schemas" to enable references to - and definitions
859 of - group of elements.
861 * Removed member parent from type data1_element (in data1.h).
863 Implemented function odr_nullval() that returns the value of
866 * Removed member num_children from data1_node (in data1.h).
868 Made NT service interface part of the server library. The
869 function statserv_main uses the NT service when required and
870 calls the statserv_start / statserv_close routines.
872 Routine zget_SearchRequest and zget_PresentRequest fills
873 resultSetName/Id member with "default" instead of "Default".
875 Fixed memory leak in server. Request queue member wasn't freed.
877 Fixed nmem_exit so that memory is freed.
881 Revised the CCL parser utility to be thread safe.
883 Added function, oid_ent_to_oid, to replace the function
884 oid_getoidbyent, which is not thread safe.
886 * Added nmem_init and nmem_exit to initialize and release
887 NMEM resources. Function nmem_init should be called once in the
888 initial thread before NMEM/ODR is used. statserv.c and client.c
889 have been changed accordingly. The change was necessary to make
890 NMEM thread safe. The NMEM memory pool is shared amongst threads
891 in a process. Unix-based applications will still work fine without
894 Added NT Services interface for the the Z39.50 (statserv) Server.
895 Refer to the ztest.c source on the usage.
897 Windows 95/NT port using MSVC5.0. Project files are included in the
900 * Defined new 'global' handle for the retrieval (data1) system. The
901 new handled, data1_handle, describes the state of the data1 system.
902 This handle is passed as first argument to virtually all
903 data1 related routines. The functions data1_create and data1_destroy
904 creates and destroys a data1 handle respectively.
906 Added ODR encode stream member to all backend request structures
907 init, search, scan etc. This stream should be used to allocate all
908 memory used for the response when thread safe operation is needed.
910 Changed the comstack utility, cs_addstr, to be thread safe. The
911 returned hostname string returned by the function is now part the
914 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
915 function. The cs_straddr takes a COMSTACK handle as argument, so this
916 function must be used after cs_create and before bind/connect.
917 This function is thread safe.
919 Moved test server to 'ztest' directory - generic server code still
920 in 'server' directory.
922 Made prefix query (pquery.c) utility thread safe.
924 Added new function modifier YAZ_EXPORT to 'export' public DLL
925 functions when using windows (see include/yconfig.h).
927 Added definitions to the OID database (util/oid.c) (RVDM).
929 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
931 Added call to ccl_rpn_delete in client program.
933 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
934 release of RPN structure.
936 Added support for C++, headers uses extern "C" for public definitions.
937 With input from RVDM.
939 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
940 Thanks to Ronald van der Meer (RVDM).
942 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
944 Added support for private extensions to the OID database
945 (oid_setprivateoids()). Thanks to RVDM.
947 Added optional, physical ANY (key replication)
949 Fixed null-reference problem in GRS-1 output filter.
951 Proximity operator added to Prefix Query Format (PQF).
953 In test client command "base" accepts multiple databases.
955 Fixed bug in cs_close stack that caused trouble with WINSOCK.
959 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
961 Smallish bug-fixes in the new encoders/decoders (explain).
963 Bug fixed in DeleteRequest.
965 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
967 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
969 Added SOIF syntax (using private OID for now) to retrieval module and client.
971 Added Update extended service.
973 Added SearchResult-1 additional info structure.
975 Added optional CCL (ISO8777) interpreter as separate module. Available
978 --- 1.2 1996/6/10 (1st anniversary release)
980 Added Summary record syntax. Lightly tested.
982 Added OPAC record syntax. Untested.
984 Added ResourceReport service encoders/decoders. Untested.
986 Fixed bug in z_Unit - wrong tagging on unitSystem.
988 Fixed bug in the DiagRecs decoder.
990 Added options for max PDU size and session timeout to frontend-server.
992 Added documentation of query-language parsers and other supporting utilities.
994 [frontend-server] Added Attribute set to the bend_scanrequest API.
996 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
997 surrogate diagnostics were generated.
999 [retrieval] Allow multiple local values for attribute.
1001 [retrieval] Allow multiple attributes per element in .abs files. index type.
1003 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1005 --- 1.1pl2 1996/4/10
1007 Minor changes, mostly specific to Zebra's requirements (retrieval)
1011 Repaired bug in frontend server when running multiple listening
1012 endpoints in dynamic mode.
1014 z_External() now won't break if a known, ASN.1 value comes encapsulated
1015 in an octet-string. The value will pass through unmodified in an Odr_oct.
1017 Added a bit of code to the demo client to decode & display
1018 ASN.1-structured records represented in the octet-aligned branch of
1019 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1021 Added z_ext_getentbyref() to the ASN module. Doc updated.
1023 * Completed the SCAN definition in the ASN module. This may break SCAN
1024 code based on older YAZ-versions at compile-time. The fix is easy -
1027 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1028 under the SCAN definition. Remember to initialize this, server-people.
1030 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1031 that this does not extend to ODR and ASN.
1033 Comstack allows insertion of established socket (primarily for
1034 inetd-operation of servers). Doc updated.
1036 Front-end server can now start from the inetd in TCP mode. Doc
1039 --- 1.0pl4 1996/1/24
1043 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1044 the rank and record number.
1046 Adjustments to the frontend server.
1048 Fixed diagnostic BER dumper. It ignored the file argument.
1052 Various changes to retrieval module.
1054 Changed the union discriminators of the protocol files from enums to
1055 ints paired with #defines.
1057 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1060 *Changed operator in the RPN structure to 'roperator', again to avoid a
1063 Fixed problems in Explain decoders/encoders.
1065 --- 1.0pl2 1995/12/6
1067 Memory bug in log module fixed.
1069 --- 1.0pl1 1995/12/5
1071 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1073 Bug in Explain DatabaseInfo module fixed.
1075 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1079 The shift to v1.0 signals that we now consider the *core* functionality
1080 of YAZ reasonably stable (the core being more or less equivalent to
1081 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1082 tested (Explain not at all - though that will happen soonish).
1084 Minor changes to code to support Windows port.
1086 Various minor changes after we're getting to use GRS-1 & co. more.
1088 Added Espec-1 format.
1090 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1091 of the protocol and it cannot be selected when encoding (maps into 'string'
1092 when decoding). Needed to talk to some servers.
1094 Demo client can request simple element set names.
1096 Added Diagnostic Format encoders/decoders.
1098 Added simple Close handling to frontend server (no hooks for resource
1099 reporting yet), and demonstration client.
1101 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1103 --- 1.0b3 1995/08/24
1105 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1106 handled incorrectly when records were requested in the searchResponse. This
1107 will only affect you if you use the frontend-server.
1109 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1110 Test-client will ask for and print GRS1. Ztest will return dummy records
1113 Added Explain encoders/decoders to the service-level API. Untested.
1115 Added Extended Services: Item Order encoders and decoders to the Service-
1116 level API. Untested. We could use a recent copy of the pertinent bits
1117 of the ILL protocol to add those bits.
1119 Added diagnostic format 1 encoders/decoders to the service-level API.
1122 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1123 odr_cons.c, which causes a more correct output.
1125 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1126 was always set to 0 when no records were requested in the searchRequest.
1128 * Added better external-handling. This shouldn't harm old code that
1129 *encodes* externals. It can break code that looks for a
1130 'single-ASN1-type' representation, since those types that are known
1131 are now decoded immediately. Look at the SUTRS sample code in
1132 seshigh.c and client.c. Documentation updated.
1134 Handling of structured records in bend_fetchresponse. Length -1 marks
1135 structured record, type is deduced from format field.
1137 --- 1.0b2 1995/06/27
1138 Fairly quick maintenance release to add SUTRS support.
1140 Fixed handling of SUTRS records in the demonstration client.
1142 * Added format field to the bend_fetchrequest and bend_fetchresponce
1143 structures of the backend API (frontend server). When the record is
1144 returned, the value of the format field is mapped to an OID. The
1145 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1146 of the record. The special value VAL_NONE in the bend_request means
1147 that no specific format was requested by the client. Documentation
1148 updated accordingly. Test server (ztest) will return a fixed dummy
1149 SUTRS record if your client requests SUTRS.
1151 Documentation updated accordingly.
1153 You can now set external libraries and RANLIB support in the top-level
1157 First public release.