1 Possible compatibility problems with earlier versions marked with '*'.
3 --- 2.0.9 NOT YET RELEASED
5 Fixed calculation of package size for structured records in Generic
6 Frontend Server. Reported and fixed by Irina Dijour.
8 Fixed namespace for SRW/SRU diagnostics.
10 Fixed SEGV in yaz-client that occured for HTTP connection errors.
14 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
15 this version is incompatible with version 1.0 and older YAZ SRW/SRU
18 CQL changes to reflect recent changes to the specification:
19 * Documentation talks about context sets instead of index sets.
20 * Documentation talks about indexes instead of qualifiers.
21 * The CQL-to-PQF transformer's configuration file now uses
22 "index.set.name = <attributes>" instead of the old form
23 "qualifier.set.name = <attributes>". (Both forms are still
24 understood but the latter is deprecated.)
25 * CQL terms with no explicit index specified are now interpreted as
26 cql.serverChoice instead of srw.serverChoice (which of course
27 behaves exactly the same.)
31 MARC conversion can now generate ISO2709 output in another
32 character set. yaz-marcdump uses this facility if you invoke it
35 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
36 functions from there can be used from C++.
40 Frontend server now transfers memory from decoded packages to stream
43 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
44 references to show up.
46 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
47 the ZOOM Abstract API. The older names for the same options are still
48 also supported for the benefit of old applications.
50 ZOOM-C supports "implementationId" and "implementationVersion" options
51 to go along with "implementationName". These allow the user code to
52 specify identification strings to be sent to servers.
53 Add OID for the new ExtLite attribute set.
55 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
56 as requested/supplid by Ere Maijala <ere@atp.fi>
58 For generic frontend server, reverse the order of
59 "toolkit-supplied / application-supplied" strings sent as implementationId,
60 Name and Version. Also, remove the spaces around the slash. This brings
61 the GFS in line with the behaviour of ZOOM-C on the client side.
63 Add function ZOOM_scanset_display_term.
65 yaz-client shows scan displayTerm if present.
67 Utility yaz-iconv is now installed by default along with the man page
70 Extend configure check for OpenSSL to use pkg-config where available (such
73 Incorporate patch by Morten Bogeskov which allows a Unix file socket
74 server to specify uid/gid/mask for socket using the format
75 unix:[user=uid,][group=gid,][umask=mask,]file=path
76 If file= is omitted the existing format is assumed, e.g.
78 in which case the mask is 0666 (rw for everybody).
80 Major restructure of YAZ source. All source in libyaz is in src directory.
81 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
82 util (utility programs such as ASN.1 compiler, yaz-marcdump).
84 Added man page for utility yaz-marcdump (used to be called marcdump).
85 yaz-marcdump is installed by 'make install'.
87 Fixed a memory leak in Generic Frontend Server that occurred when decoding
88 of incoming package failed.
90 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
92 Change prototype of odr_perror: add const to message string.
94 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
96 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
97 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
98 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
99 DNS lookup. There should not be any compatibility problems with this
100 assuming that blocking=1 or 0 is used.
102 Fix bad reference in UNIX comstack in function cs_addrstr.
104 Fix for compilation on AIX.
106 The generic front-end server (server/seshigh.c) now supports returning
107 Init diagnostics to the client in User-information-field, in
108 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
113 Allow any CQL relation (not just all,any,exact,scr).
115 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
116 that features the same UI.
118 Implemented command update0 in YAZ client which is equivalent to
119 update but uses old of Ext Update ASN.1.
121 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
122 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
123 Previously no OID was used for this info.
125 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
126 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
127 returns 'malformed search term' otherwise.
129 SortResponse member resultCount now set to NULL in sort handler of
132 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
135 Add three new utility functions for translating OIDs between various
136 formats -- symbolic name such as "Usmarc", minus-1-terminated int
137 arrays and dotted strings such as "1.2.840.10003.9.5.1":
138 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
139 char *oid_to_dotstring(const int *oid, char *oidbuf);
140 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
142 Reverted modifications for ES Update definition for z_IU0Update
143 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
144 is back to YAZ 2.0.2.
146 String value attributes for CCL parser.
148 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
149 which their FirstSearch server returns in Init responses, sometimes
150 carrying useful diagnostic information when Init fails. This has the
151 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
152 "z39.50/oclcui.asn", where its definition is somewhat different from
153 what OCLC document on their web-site, as required to interoperate with
156 Support for anonymous authentication in yaz-client. Use the command
159 * Fix the OID of the Index Data-local "admin" Extended Service from
160 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
161 the 1000, which indicates a locally-defined OID, was a mistake.
165 Fix CCL directive @case handling so that it affects string match for
166 both CCL keywords and qualifiers.
168 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
169 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
170 Decoder has been updated with ASN.1 changes as listed in
171 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
172 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
173 z_IUUpdate, remains unchanged.
175 ZOOM_record_get may now return a record in a specific character set.
176 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
177 "from" is the character set of record as returned by target. "to" is
178 the character set to be returned. If omitted, "to" is UTF-8.
180 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
182 New ODR utility, odr_getelement, which returns name of element for
183 which encoding/decoding failed.
185 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
186 in cases where a required element was omitted.
188 Bug fix: some MARC8 sequences were not converted.
190 New ZOOM option "step" which specifies number of records to be
191 retrieved in one chunk. Used in conjunction with "start" and "count".
193 SRW support for yaz-client. Use scheme http: to use it, e.g.
196 yaz-client no longer does (un)intelligent character set conversions
197 by default. Can be enabled with charset and marc_charset commands.
199 xmalloc trace fix for 64-bit systems such as DEC alpha.
201 Solaris 2.6 compile fix.
203 New function, cql_strerror() translates SRW error codes, as returned
204 by cql_transform_error(), into human-readable English strings. Used
205 in yaz-client diagnostics when appropriate.
207 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
208 converts it into a type-1 query which is sent to the server. This
209 makes CQL available for use with all Z-servers, as opposed to the tiny
210 minority that can handle CQL queries themselves.
214 New Debian package layout similar to the Redhat Package layout.
216 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
217 and search result respectively.
221 Redhat package is now several packages: libyaz (runtime libraries),
222 libyaz-devel (development and documentation, and yaz (utility programs).
223 Package spec file by Morten Bøgeskov.
225 New member 'schema' in struct bend_fetch_rr which the name of requested
226 schema (SRW/SRU) for record (or NULL if none was given). The fetch
227 handler MAY set this to reflect the schema of the returned record.
229 New member 'display_term' in struct scan_entry. GFS now sets member entries
230 and allocates scan entries to be filled by user scan handler. In previous
231 version, entries member was allocated by the scan handler. That still works,
232 but the GFS will ignore member display_term - assuming it was NOT set by
233 the handler. The fact that the GFS now allocates the entries both allows
234 for new members and makes a scan handler easier to write.
236 Fix CQL lex buffer overflow.
238 SRW/SRU recordPacking. For SRW default recordPacking is string. For
239 SRU default recordPacking is string.
241 SRU protocol support for frontend server.
243 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
245 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
247 Added scan for the ZOOM shell (zoomsh).
251 * String Identifers for Schemas (Amendment 5).
252 http://lcweb.loc.gov/z3950/agency/amend/am5.html
253 Old definition for schema
254 Odr_oid *schema; /* OPT */
259 Z_InternationalString *uri;
260 #define Z_Schema_oid 1
261 #define Z_Schema_uri 2
264 * resultCount parameter to Sort Response (Amendment 1).
265 http://lcweb.loc.gov/z3950/agency/amend/am1.html
267 Support for SRW 1.0 over HTTP. This is an optional feature and
268 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
271 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
272 on the same port. SRW SearchRetrieveRequests are mapped
273 to bend_init,bend_search,bend_fetch,bend_close.
275 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
277 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
278 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
280 ZOOM connections are SRW based if schem http is used for hostname
281 in connect, e.g. z = ZOOM_connection_new("http://myserver");
282 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
284 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
285 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
286 distance=n, order=true/false, relation=le, prox unit=word. If
287 n is omitted, distance 1 is used.
289 Fixed problem with C compiler include path in wrong order.
291 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
292 on Solaris. Patch from Ko van der Sloot.
294 New MARC decode API. All new functions operate on a yaz_marc_t
295 handle. The most important new functions are: yaz_marc_create,
296 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
297 decode and destroy respectively. Decoder can produce formats
298 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
299 include/yaz/marcdisp.h.
301 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
302 to UTF-8, UCS-32, wchar_t or Latin-1.
304 * Prototypes for yaz_iconv_-functions moved to separate header
305 include/yaz/yaz-iconv.h.
307 Make a few private functions 'static' in unix.c. This prevents
308 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
310 For ZOOM connection, the options targetImplementation{Id,Name,Version}
311 are set when Init Response is received.
313 New function ZOOM_connection_error_x similar to ZOOM_connection_error
314 but returns diagnostic set as well.
316 New function yaz_strerror which is a portable wrapper for
317 strerror/strerror_r/GetLastMessage.
319 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
320 is returned for MARC. If type is "oai", then OAI MARC is returned.
322 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
327 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
329 Fix bad race conditions on SIGTERM and terminate gracefully in
332 Move retrieval (data1) module to Zebra since nobody seems to be
335 Add GRS-1 render for ZOOM using same format as yaz-client.
339 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
341 Fix broken ESpec handling in data1 module.
343 SGML reader parses comments and makes them part of the data1 tree.
345 Added several type casts so that YAZ compiles as C++ code.
347 ZOOM didn't handle PDU encoding failures properly.
349 Added more Bib-1 diagnostics (approved extensions).
351 GNU configure: better check for iconv.
353 More portable use of accept, getpeername. Check for socklen_t. Use
354 int/size_t if socklen_t is not defined.
358 PQF parser rejects bad queries - including those with extra
359 characters in them. PQF parser used to silently ignore that.
360 Cleaner API for PQF added, which allows you to get detailed
361 error information for bad queries (see yaz/pquery.h).
363 Fixed bug in ZOOM_record_get for type "database".
365 Implemented mini iconv library supporting conversions between
366 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
368 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
372 Fixed ZOOM C record cache so that preferredRecordSyntax and
373 elementSetName is used to check for already fetched records.
377 Added three members in bend_initrequest structure to facilitate
378 character set negotiation.
380 Fixed a bug in frontend server that could cause indefinite
381 loops under rare conditions.
383 Revised character set utilities (charneg.h) so that encoding
384 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
386 For PQF, directive @term <type> sets term type for Scan/Search.
387 Here <type> is general, string, numeric, null. The term type
388 is inherited - just like @attr.
390 New call odr_set_charset that sets character set conversion for
391 international-strings on a ODR stream. Prototype is:
392 int odr_set_charset(ODR o, const char *to, const char *from);
393 The InternationalString is still represented as C string in YAZ
394 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
395 won't). On the protocol level, you can use any encoding.
397 Support for UNIX sockets in ZOOM.
399 Solaris recv sometimes returns errno == ENOENT. It is treated as
400 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
402 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
403 both client and server. Code by Morten Bøgeskov.
407 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
408 that they can be used directly from Visual Basic. You must recompile
409 your windows APP if you're using ZOOM.
411 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
412 Commands "lang" and "charset" sets language and character set respectively.
413 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
414 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
416 Attributes from multiple CCL fields may be OR'ed rather than merged
417 using directive "@field or". Fields are still merged by default -
418 equivalent to "@field merge".
420 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
423 Fixed bug in zget for parameter ExtendedServicesResponse.
429 Added PQF feature: '@attr type=value' may be written as '@type=value'.
431 Client displays USR.1:SearchResult-1 (hits per term).
433 Additional Search Info for search in Generic Frontend Server.
435 Fixed CCL parsing of "field=s".
437 WIN32 installer - using the excellent NSIS software from nullsoft.
439 Fixed CCL parsing of "field = - <number>".
441 Added function yaz_marc_decode that decodes MARC for line mode
442 display or XML (similar to that used by JZKit).
444 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
445 Z39.50. But ISO/ILL was, however.
447 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
448 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
450 http://lcweb.loc.gov/z3950/agency/amend/am2.html
451 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
455 New YAZ client features: Command completion and new commands:
456 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
457 Code provided by Jacob Poulsen.
459 New call oid_trav, that visits all registered OIDs via callback.
461 Function ZOOM_record_get now returns const char pointer rather than
462 void pointer. It saves a lot of type casts.
464 For YAZ client, command "auth" now allows you to set authentication
465 in IdPass style. It is enabled when three tokens are given - order
466 is user, group and password.
468 Fix memory leaks in MARC record handling for ZOOM.
470 New option for YAZ client, -k <kilobytes> that sets
471 maximum record size. Similar to -k option for generic frontend
472 server and yaz-ztest.
474 More fixes for scan. Non-zero stepSize handled. OID's fixes.
476 Prefix query parser reports "fail" when bad attribute set is given.
478 Fix in MARC decoder. Proximity logging. Fix for attribute set
479 in scan handler for server. Patches by Shigeru Ishida.
481 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
484 Configure option --with-openssl=<dir> now works when a directory is
485 specified. Patch provided by Morten Bøgeskov.
487 New option for YAZ client, -u <auth>, that sets authentication.
489 ZOOM fix: error information was sometimes "missing", since error
490 was cleared/reset too when it shouldn't.
492 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
496 Scan for ZOOM API. New object ZOOM_scanset. New functions
497 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
498 ZOOM_scanset_destroy.
500 New ZOOM function, ZOOM_connection_last_event, that returns type
501 of last event (such as "receive data", "send data", "apdu received",
504 New ZOOM option, schema, that specifies schema for retrieval.
506 New CCL feature. Qualifiers can be aliases for one or more
507 other qualifiers (if more than one is given, OR is used).
509 ZOOM uses named result sets if target supports it.
511 Two new YAZ client commands: . (dot, which sources a script of YAZ
512 client commands), and ! (to execute shell command.). Implemented
515 Working on Debian packages.
519 YAZ client enables named result sets only if target supports it.
521 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
523 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
524 with key="host" to get same result.
526 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
527 Function Z3950_resultset_record(s) returns references to records
528 "owned" by resultset. To become owner use Z3950_record_clone.
530 Function z_ext_record handles Extended Services. Thanks to
535 CCL Parser fix: ignore token comma when dealing with and-lists.
537 Documentation updates for COMSTACK.
539 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
540 Changed prototype Z3950_records. For some functions, int parameters
541 were changed to size_t.
543 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
546 New MARC decode/display function, marc_display_exl, which properly rejects
547 non-ISO2709 records. YAZ client uses it.
551 Fix bug: local attribute set wasn't set correctly in PQF strings.
555 * Old Z39.50 codecs no longer supported.
557 Added ZOOM C binding. See http://zoom.z3950.org/
559 Renamed states for COMSTACKs to avoid confusion with events.
561 Implemented cs_look and proper cs_rcvconnect.
563 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
565 Configure detects POSIX threads on OpenBSD.
567 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
568 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
570 When error is returned from present handler, non-surrogate diagnostic
571 is returned in present response (and fetch handler is no longer called).
573 * Minor adjustments to pquery parser (PQF). Token characters may be
574 escaped by using backslash (C-style).
576 PQF parser allows string attribute values to be specified. For @attr,
577 non-numeric characters after the equal-sign are treated as strings
578 (e.g. @attr 9=title).
580 CCL trunction character may be defined (@truncation in file)
582 * function zget_ExtendedServicesRequest sets waitAction to
583 waitIfPossible (was wait).
585 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
588 CCL operator names may be set in field definition files (CCL_bibset).
589 See ccl/bib1 for an example.
591 Fixes in ASN.1 compiler for C++ compatibility.
593 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
594 and "op_or" to avoid conflict with C++.
596 Fixed problem with GNU readline detection on Redhat 7.0.
598 Added step-size for Scan backend handler.
600 Fixed bug that made the frontend server crash when no attribute
601 set was specified for scan.
603 Front-end server automatically switches to original working directory
604 when installed as an NT service. Previously -w had to be specified to
607 Added extended attributes for retrieval module (data1), so that data1
608 records carry d1_readXML/SGML attributes. d1_read also supports
609 null-data rules ( <tag/>)
611 On UNIX when POSIX threads are available, a separate library libyazthread
612 is created. Programmers should link with that library and the yaz library
613 when using threads. The reason for the split was that some applications
614 on Linux, such as Apache, doesn't work well when using shared objects that
617 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
618 (or any frontend server) in SSL mode by specifying ssl: followed by
619 address. Only tested on UNIX.
621 Added feature for CCL module. Virtual structure s=al or s=ol generates
622 and-list and or-list respectively instead of phrase search.
626 * Added prefix "yaz_" for the functions log_init.., log_file.. and
627 log_mask_str. This was done to avoid name conflicts with other libraries
628 (such as other PHP extensions).
630 Added raw OID member for preferred record syntax (request_format_raw)
631 and returned record syntax (output_format_raw) for backend fetch method.
633 Config file yaz-config now accepts options so that it returns specific
634 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
636 Shared library support for UNIX using GNU libtool.
638 * Modified backend interface. Request/Response struct's replaced by
639 one read/write C struct. For example bend_fetchrequest and
640 bend_fetchresult have been replaced by single bend_fetch_rr struct.
641 Every handler - even search has to be registered in bend_init
642 handler. This means that the YAZ library no longer refers to
643 external functions and it makes it possible to make the whole
644 thing a single DLL/SO.
646 Added Segment handler for backend server.
648 Added Zmbol/Zebra administrative functions to YAZ client.
650 Threaded frontend server on UNIX (when POSIX Threads are available).
651 Starting the server with option -T enables multi-threading.
655 Added configure option --enable-comp/disable-comp to control use
656 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
657 located in sub directory asn.
659 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
660 in ${exec_prefix}/bin along with the other programs yaz-client and
663 GNU automake used to maintain makefiles.
667 Changed retrieval module so that we can load records with no abstract
668 syntax defined. Tagpaths in these records are fully composed of string
671 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
675 On UNIX, the generated makefile now supports a proper 'make install'.
676 The prefix can be set via GNU configure to set the install location
677 (default is /usr/local).
679 * YAZ programs client and ztest were renamed to yaz-client and
680 yaz-ztest to avoid conflicts when users install YAZ in "standard"
681 locations, such as /usr/bin,/usr/local/bin,etc.
683 * YAZ Header files were moved from include to include/yaz. YAZ Header
684 files are referred to as include <yaz/log.h> rather than <log.h>.
685 The YAZ include path (-I ..) is therefore the same as before. Programmers
686 should update their #include statements or use -Ipath/include/yaz
687 instead. The main motivation for doing this change is that YAZ header files
688 can be installed in "standard" locations /usr/include,/usr/local/include
689 without introducing conflicts, since ALL YAZ header files are stored
690 in subdirectory yaz (under /usr/include for example).
692 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
693 rather than project/workspace files. We switched because project files
694 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
697 Changed name of logging function, logf, to yaz_log, to prevent name
698 clash with some math-log functions. The YAZ header log.h defines logf
699 to yaz_log (#define) so there should be no incompatibilities by this
702 Added bend_start/bend_stop handlers for server. These handler are
703 called on start/stop of server. For windows they are called whenever
704 a service is started/stopped.
706 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
707 a fairly small ASN.1 compiler written in Tcl. The compiler is located
708 in util/yc.tcl. The auto-generated C code structures are, in a few
709 cases, incompatible with the old decoders. There are differences in the
710 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
711 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
712 The preprocessor variable ASN_COMPILED is defined when the compiled
713 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
714 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
715 wish to use the old encoders/decoders you can specify --disable-yc
718 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
719 version so that it supports both new - and old version of DB Update
721 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
722 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
723 change. The name parameter can be set to 0 in which no name is specified
724 for the construction. The macros odr_implicit and odr_explicit sets name
725 parameter to zero for the construction involved. New macros
726 odr_implicit_tag and odr_explicit_tag are similar to the others,
727 except that a name parameter is added. For programmers' that don't use
728 ODR they probably only need to change the call to z_APDU and z_External.
730 Added access control facility by interfacing the TCP wrapper library.
731 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
732 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
733 name of the daemon and enables the access control as specified in
734 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
736 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
737 den Dool <H.M.vdnDool@kub.nl>.
739 Added reference ID parameter to most functions in server API - refer
740 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
742 Changed name of ccl library to libccl.a (was ccl.a).
744 Fixed bug in decoder for Explain (Category TargetInfo).
746 Added support for GNU readline in client. Thanks to Jacob Poulsen
747 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
749 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
750 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
751 IMPLEMENTATION! This change was made to the development version before
752 the ZIG decided to retract the amendment. If any users MUST be
753 compatible with the original Update definition, PLEASE CONTACT US, and
754 we will include a separate definition corresponding to the old Update
755 ES. Note that because of the change to the ASN.1 of the
756 TaskPackageRecordStructure we cannot define a single structure that
757 will support both versions.
759 * Added const modifier to buffer parameter for some ODR/BER encoding
760 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
761 completeWAIS, odr_dumpBER.
763 Fixed bug in client.c which caused a crash when a scanResponse didn't
764 contain positionOfTerm.
766 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
767 * will cause an error in a client if a non-YAZ target sends both a
768 * list of Scan entries and non-surrogate diagnostics.
770 Retrieval module enhancements. Tag sets may be typed in the reference
771 to it. From the .abs-file the "tagset" directive takes a third optional
772 integer type for the tag set referenced. From a .tag-file the "include"
773 directive takes a third optional type as well. The old "type" directive
774 in the tag set itself is still recognized but acts as the default type
777 Backend interface change. Individual Scan terms returned from bend_scan
778 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
779 in include/backend.h.
781 Retrieval module enhancements. Multiple tag sets and attribute sets may
782 be specified in abstract syntax specs. Revised the error/warning for
783 logging messages reported by the retrieval module when reading the
786 Object Identifier system (oid_..) changed. The API is backwards
787 compatible but the oid-routines now allocates new OID's when needed.
788 Raw OID's may be specified in oid_getvalbyname.
790 YAZ now uses GNU configure to generate Makefile(s).
792 * Minor changes in some of the member names of DeleteResultSetRequest and
793 DeleteResultSetResponse. See include/proto.h.
795 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
796 and added member 'languages' in TargetInfo (which was missing).
798 Changed the way attribute sets are handled in the retrieval
799 module. These are now cached, just like the abstract syntaxes
802 Changed YAZ so that it links with compiled ASN.1.
804 Added Explain-schema definitions and mapping routines. The following
805 Explain categories have been implemented: AttributeDetails,
806 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
808 Fixed minor bug in Windows version of Server Library.
810 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
812 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
814 Added EXTERNAL: UNIverse Resource Report (non-standard).
816 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
817 ENUMERATED and SET OF.
819 * Added 'const' to some of the char pointer arguments for the
820 functions, data1_read_node, data1_getelementbytagname,
821 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
824 Fixed bug in data1_insert_taggeddata - the last_child member of
825 parent wasn't initialised.
827 * Changed data1_read_record and data1_read_node so that the supplied
828 "SGML"-buffer is read-only. In particular the resulting data1 - tree
829 doesn't refer to any parts of the "SGML"-buffer.
831 Fixed bug in server library (Windows version of statserv_remove).
833 * Changed code so that it compiles as C++. The type definition
834 of Odr_fun which is a member of Odr_arm was changed. The result is,
835 that an explicit typecast is needed for the fun pointer when
836 using Odr_arm - as in:
837 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
839 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
841 Implemented the new structured date and time definition as approved
842 by the ZIG. Added schemaId element to the specificTag in Espec-1
843 (also approved at the last ZIG). Thanks to RVDM.
845 Added some Object identifiers (RVDM).
847 Changed the Update Extended Service (RVDM).
849 Added command "refid" to client which specifies referenceId for
850 the following requests.
852 Implemented extended service handling for server. See ztest.c
853 for an example as well as backend.h. New handlers are registerd
856 * Changed interface for sort in server.
858 Added new members to statserv_options_block. It allows a server
859 to read options from another source than just the command line. Thanks
860 to Charles Woodfield.
862 * Changed definition of Z_Triple in file prt-grs.h - member boolean
863 renamed to zboolean. Some C++ compilers complained about the name.
865 Minor changes to gils.abs. Added index 's' (sort) on title
866 and date/time-last-modified.
870 Fixed bug in server library regarding inetd mode (-i). This bug
871 was introduced by release 1.4.
875 Added sort facility in client and backend server interface.
877 Fixed problem with dependencies in Makefile(s).
879 Fixed bugs for encoders/decoders of extended services and
882 Implemented sub-tree feature for schemas. Sub-trees are
883 referenced in *.abs-files. See explain.abs for an example
884 of the use of this feature.
886 Modified bib1.att; local attributes for ANY didn't include
887 ANY itself (only affects use of the retrieval module).
889 Fixed bug in plain SGML reader in function data1_read_node:
890 tags with prefix "var" was incorrectly interpreted as variants.
892 Added feature "sub-schemas" to enable references to - and definitions
893 of - group of elements.
895 * Removed member parent from type data1_element (in data1.h).
897 Implemented function odr_nullval() that returns the value of
900 * Removed member num_children from data1_node (in data1.h).
902 Made NT service interface part of the server library. The
903 function statserv_main uses the NT service when required and
904 calls the statserv_start / statserv_close routines.
906 Routine zget_SearchRequest and zget_PresentRequest fills
907 resultSetName/Id member with "default" instead of "Default".
909 Fixed memory leak in server. Request queue member wasn't freed.
911 Fixed nmem_exit so that memory is freed.
915 Revised the CCL parser utility to be thread safe.
917 Added function, oid_ent_to_oid, to replace the function
918 oid_getoidbyent, which is not thread safe.
920 * Added nmem_init and nmem_exit to initialize and release
921 NMEM resources. Function nmem_init should be called once in the
922 initial thread before NMEM/ODR is used. statserv.c and client.c
923 have been changed accordingly. The change was necessary to make
924 NMEM thread safe. The NMEM memory pool is shared amongst threads
925 in a process. Unix-based applications will still work fine without
928 Added NT Services interface for the the Z39.50 (statserv) Server.
929 Refer to the ztest.c source on the usage.
931 Windows 95/NT port using MSVC5.0. Project files are included in the
934 * Defined new 'global' handle for the retrieval (data1) system. The
935 new handled, data1_handle, describes the state of the data1 system.
936 This handle is passed as first argument to virtually all
937 data1 related routines. The functions data1_create and data1_destroy
938 creates and destroys a data1 handle respectively.
940 Added ODR encode stream member to all backend request structures
941 init, search, scan etc. This stream should be used to allocate all
942 memory used for the response when thread safe operation is needed.
944 Changed the comstack utility, cs_addstr, to be thread safe. The
945 returned hostname string returned by the function is now part the
948 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
949 function. The cs_straddr takes a COMSTACK handle as argument, so this
950 function must be used after cs_create and before bind/connect.
951 This function is thread safe.
953 Moved test server to 'ztest' directory - generic server code still
954 in 'server' directory.
956 Made prefix query (pquery.c) utility thread safe.
958 Added new function modifier YAZ_EXPORT to 'export' public DLL
959 functions when using windows (see include/yconfig.h).
961 Added definitions to the OID database (util/oid.c) (RVDM).
963 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
965 Added call to ccl_rpn_delete in client program.
967 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
968 release of RPN structure.
970 Added support for C++, headers uses extern "C" for public definitions.
971 With input from RVDM.
973 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
974 Thanks to Ronald van der Meer (RVDM).
976 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
978 Added support for private extensions to the OID database
979 (oid_setprivateoids()). Thanks to RVDM.
981 Added optional, physical ANY (key replication)
983 Fixed null-reference problem in GRS-1 output filter.
985 Proximity operator added to Prefix Query Format (PQF).
987 In test client command "base" accepts multiple databases.
989 Fixed bug in cs_close stack that caused trouble with WINSOCK.
993 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
995 Smallish bug-fixes in the new encoders/decoders (explain).
997 Bug fixed in DeleteRequest.
999 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1001 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1003 Added SOIF syntax (using private OID for now) to retrieval module and client.
1005 Added Update extended service.
1007 Added SearchResult-1 additional info structure.
1009 Added optional CCL (ISO8777) interpreter as separate module. Available
1012 --- 1.2 1996/6/10 (1st anniversary release)
1014 Added Summary record syntax. Lightly tested.
1016 Added OPAC record syntax. Untested.
1018 Added ResourceReport service encoders/decoders. Untested.
1020 Fixed bug in z_Unit - wrong tagging on unitSystem.
1022 Fixed bug in the DiagRecs decoder.
1024 Added options for max PDU size and session timeout to frontend-server.
1026 Added documentation of query-language parsers and other supporting utilities.
1028 [frontend-server] Added Attribute set to the bend_scanrequest API.
1030 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1031 surrogate diagnostics were generated.
1033 [retrieval] Allow multiple local values for attribute.
1035 [retrieval] Allow multiple attributes per element in .abs files. index type.
1037 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1039 --- 1.1pl2 1996/4/10
1041 Minor changes, mostly specific to Zebra's requirements (retrieval)
1045 Repaired bug in frontend server when running multiple listening
1046 endpoints in dynamic mode.
1048 z_External() now won't break if a known, ASN.1 value comes encapsulated
1049 in an octet-string. The value will pass through unmodified in an Odr_oct.
1051 Added a bit of code to the demo client to decode & display
1052 ASN.1-structured records represented in the octet-aligned branch of
1053 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1055 Added z_ext_getentbyref() to the ASN module. Doc updated.
1057 * Completed the SCAN definition in the ASN module. This may break SCAN
1058 code based on older YAZ-versions at compile-time. The fix is easy -
1061 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1062 under the SCAN definition. Remember to initialize this, server-people.
1064 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1065 that this does not extend to ODR and ASN.
1067 Comstack allows insertion of established socket (primarily for
1068 inetd-operation of servers). Doc updated.
1070 Front-end server can now start from the inetd in TCP mode. Doc
1073 --- 1.0pl4 1996/1/24
1077 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1078 the rank and record number.
1080 Adjustments to the frontend server.
1082 Fixed diagnostic BER dumper. It ignored the file argument.
1086 Various changes to retrieval module.
1088 Changed the union discriminators of the protocol files from enums to
1089 ints paired with #defines.
1091 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1094 *Changed operator in the RPN structure to 'roperator', again to avoid a
1097 Fixed problems in Explain decoders/encoders.
1099 --- 1.0pl2 1995/12/6
1101 Memory bug in log module fixed.
1103 --- 1.0pl1 1995/12/5
1105 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1107 Bug in Explain DatabaseInfo module fixed.
1109 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1113 The shift to v1.0 signals that we now consider the *core* functionality
1114 of YAZ reasonably stable (the core being more or less equivalent to
1115 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1116 tested (Explain not at all - though that will happen soonish).
1118 Minor changes to code to support Windows port.
1120 Various minor changes after we're getting to use GRS-1 & co. more.
1122 Added Espec-1 format.
1124 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1125 of the protocol and it cannot be selected when encoding (maps into 'string'
1126 when decoding). Needed to talk to some servers.
1128 Demo client can request simple element set names.
1130 Added Diagnostic Format encoders/decoders.
1132 Added simple Close handling to frontend server (no hooks for resource
1133 reporting yet), and demonstration client.
1135 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1137 --- 1.0b3 1995/08/24
1139 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1140 handled incorrectly when records were requested in the searchResponse. This
1141 will only affect you if you use the frontend-server.
1143 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1144 Test-client will ask for and print GRS1. Ztest will return dummy records
1147 Added Explain encoders/decoders to the service-level API. Untested.
1149 Added Extended Services: Item Order encoders and decoders to the Service-
1150 level API. Untested. We could use a recent copy of the pertinent bits
1151 of the ILL protocol to add those bits.
1153 Added diagnostic format 1 encoders/decoders to the service-level API.
1156 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1157 odr_cons.c, which causes a more correct output.
1159 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1160 was always set to 0 when no records were requested in the searchRequest.
1162 * Added better external-handling. This shouldn't harm old code that
1163 *encodes* externals. It can break code that looks for a
1164 'single-ASN1-type' representation, since those types that are known
1165 are now decoded immediately. Look at the SUTRS sample code in
1166 seshigh.c and client.c. Documentation updated.
1168 Handling of structured records in bend_fetchresponse. Length -1 marks
1169 structured record, type is deduced from format field.
1171 --- 1.0b2 1995/06/27
1172 Fairly quick maintenance release to add SUTRS support.
1174 Fixed handling of SUTRS records in the demonstration client.
1176 * Added format field to the bend_fetchrequest and bend_fetchresponce
1177 structures of the backend API (frontend server). When the record is
1178 returned, the value of the format field is mapped to an OID. The
1179 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1180 of the record. The special value VAL_NONE in the bend_request means
1181 that no specific format was requested by the client. Documentation
1182 updated accordingly. Test server (ztest) will return a fixed dummy
1183 SUTRS record if your client requests SUTRS.
1185 Documentation updated accordingly.
1187 You can now set external libraries and RANLIB support in the top-level
1191 First public release.