1 Possible compatibility problems with earlier versions marked with '*'.
3 --- 2.0.9 NOT YET RELEASED
7 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
8 this version is incompatible with version 1.0 and older YAZ SRW/SRU
11 CQL changes to reflect recent changes to the specification:
12 * Documentation talks about context sets instead of index sets.
13 * Documentation talks about indexes instead of qualifiers.
14 * The CQL-to-PQF transformer's configuration file now uses
15 "index.set.name = <attributes>" instead of the old form
16 "qualifier.set.name = <attributes>". (Both forms are still
17 understood but the latter is deprecated.)
18 * CQL terms with no explicit index specified are now interpreted as
19 cql.serverChoice instead of srw.serverChoice (which of course
20 behaves exactly the same.)
24 MARC conversion can now generate ISO2709 output in another
25 character set. yaz-marcdump uses this facility if you invoke it
28 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
29 functions from there can be used from C++.
33 Frontend server now transfers memory from decoded packages to stream
36 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
37 references to show up.
39 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
40 the ZOOM Abstract API. The older names for the same options are still
41 also supported for the benefit of old applications.
43 ZOOM-C supports "implementationId" and "implementationVersion" options
44 to go along with "implementationName". These allow the user code to
45 specify identification strings to be sent to servers.
46 Add OID for the new ExtLite attribute set.
48 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
49 as requested/supplid by Ere Maijala <ere@atp.fi>
51 For generic frontend server, reverse the order of
52 "toolkit-supplied / application-supplied" strings sent as implementationId,
53 Name and Version. Also, remove the spaces around the slash. This brings
54 the GFS in line with the behaviour of ZOOM-C on the client side.
56 Add function ZOOM_scanset_display_term.
58 yaz-client shows scan displayTerm if present.
60 Utility yaz-iconv is now installed by default along with the man page
63 Extend configure check for OpenSSL to use pkg-config where available (such
66 Incorporate patch by Morten Bogeskov which allows a Unix file socket
67 server to specify uid/gid/mask for socket using the format
68 unix:[user=uid,][group=gid,][umask=mask,]file=path
69 If file= is omitted the existing format is assumed, e.g.
71 in which case the mask is 0666 (rw for everybody).
73 Major restructure of YAZ source. All source in libyaz is in src directory.
74 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
75 util (utility programs such as ASN.1 compiler, yaz-marcdump).
77 Added man page for utility yaz-marcdump (used to be called marcdump).
78 yaz-marcdump is installed by 'make install'.
80 Fixed a memory leak in Generic Frontend Server that occurred when decoding
81 of incoming package failed.
83 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
85 Change prototype of odr_perror: add const to message string.
87 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
89 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
90 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
91 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
92 DNS lookup. There should not be any compatibility problems with this
93 assuming that blocking=1 or 0 is used.
95 Fix bad reference in UNIX comstack in function cs_addrstr.
97 Fix for compilation on AIX.
99 The generic front-end server (server/seshigh.c) now supports returning
100 Init diagnostics to the client in User-information-field, in
101 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
106 Allow any CQL relation (not just all,any,exact,scr).
108 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
109 that features the same UI.
111 Implemented command update0 in YAZ client which is equivalent to
112 update but uses old of Ext Update ASN.1.
114 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
115 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
116 Previously no OID was used for this info.
118 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
119 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
120 returns 'malformed search term' otherwise.
122 SortResponse member resultCount now set to NULL in sort handler of
125 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
128 Add three new utility functions for translating OIDs between various
129 formats -- symbolic name such as "Usmarc", minus-1-terminated int
130 arrays and dotted strings such as "1.2.840.10003.9.5.1":
131 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
132 char *oid_to_dotstring(const int *oid, char *oidbuf);
133 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
135 Reverted modifications for ES Update definition for z_IU0Update
136 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
137 is back to YAZ 2.0.2.
139 String value attributes for CCL parser.
141 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
142 which their FirstSearch server returns in Init responses, sometimes
143 carrying useful diagnostic information when Init fails. This has the
144 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
145 "z39.50/oclcui.asn", where its definition is somewhat different from
146 what OCLC document on their web-site, as required to interoperate with
149 Support for anonymous authentication in yaz-client. Use the command
152 * Fix the OID of the Index Data-local "admin" Extended Service from
153 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
154 the 1000, which indicates a locally-defined OID, was a mistake.
158 Fix CCL directive @case handling so that it affects string match for
159 both CCL keywords and qualifiers.
161 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
162 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
163 Decoder has been updated with ASN.1 changes as listed in
164 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
165 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
166 z_IUUpdate, remains unchanged.
168 ZOOM_record_get may now return a record in a specific character set.
169 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
170 "from" is the character set of record as returned by target. "to" is
171 the character set to be returned. If omitted, "to" is UTF-8.
173 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
175 New ODR utility, odr_getelement, which returns name of element for
176 which encoding/decoding failed.
178 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
179 in cases where a required element was omitted.
181 Bug fix: some MARC8 sequences were not converted.
183 New ZOOM option "step" which specifies number of records to be
184 retrieved in one chunk. Used in conjunction with "start" and "count".
186 SRW support for yaz-client. Use scheme http: to use it, e.g.
189 yaz-client no longer does (un)intelligent character set conversions
190 by default. Can be enabled with charset and marc_charset commands.
192 xmalloc trace fix for 64-bit systems such as DEC alpha.
194 Solaris 2.6 compile fix.
196 New function, cql_strerror() translates SRW error codes, as returned
197 by cql_transform_error(), into human-readable English strings. Used
198 in yaz-client diagnostics when appropriate.
200 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
201 converts it into a type-1 query which is sent to the server. This
202 makes CQL available for use with all Z-servers, as opposed to the tiny
203 minority that can handle CQL queries themselves.
207 New Debian package layout similar to the Redhat Package layout.
209 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
210 and search result respectively.
214 Redhat package is now several packages: libyaz (runtime libraries),
215 libyaz-devel (development and documentation, and yaz (utility programs).
216 Package spec file by Morten Bøgeskov.
218 New member 'schema' in struct bend_fetch_rr which the name of requested
219 schema (SRW/SRU) for record (or NULL if none was given). The fetch
220 handler MAY set this to reflect the schema of the returned record.
222 New member 'display_term' in struct scan_entry. GFS now sets member entries
223 and allocates scan entries to be filled by user scan handler. In previous
224 version, entries member was allocated by the scan handler. That still works,
225 but the GFS will ignore member display_term - assuming it was NOT set by
226 the handler. The fact that the GFS now allocates the entries both allows
227 for new members and makes a scan handler easier to write.
229 Fix CQL lex buffer overflow.
231 SRW/SRU recordPacking. For SRW default recordPacking is string. For
232 SRU default recordPacking is string.
234 SRU protocol support for frontend server.
236 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
238 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
240 Added scan for the ZOOM shell (zoomsh).
244 * String Identifers for Schemas (Amendment 5).
245 http://lcweb.loc.gov/z3950/agency/amend/am5.html
246 Old definition for schema
247 Odr_oid *schema; /* OPT */
252 Z_InternationalString *uri;
253 #define Z_Schema_oid 1
254 #define Z_Schema_uri 2
257 * resultCount parameter to Sort Response (Amendment 1).
258 http://lcweb.loc.gov/z3950/agency/amend/am1.html
260 Support for SRW 1.0 over HTTP. This is an optional feature and
261 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
264 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
265 on the same port. SRW SearchRetrieveRequests are mapped
266 to bend_init,bend_search,bend_fetch,bend_close.
268 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
270 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
271 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
273 ZOOM connections are SRW based if schem http is used for hostname
274 in connect, e.g. z = ZOOM_connection_new("http://myserver");
275 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
277 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
278 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
279 distance=n, order=true/false, relation=le, prox unit=word. If
280 n is omitted, distance 1 is used.
282 Fixed problem with C compiler include path in wrong order.
284 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
285 on Solaris. Patch from Ko van der Sloot.
287 New MARC decode API. All new functions operate on a yaz_marc_t
288 handle. The most important new functions are: yaz_marc_create,
289 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
290 decode and destroy respectively. Decoder can produce formats
291 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
292 include/yaz/marcdisp.h.
294 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
295 to UTF-8, UCS-32, wchar_t or Latin-1.
297 * Prototypes for yaz_iconv_-functions moved to separate header
298 include/yaz/yaz-iconv.h.
300 Make a few private functions 'static' in unix.c. This prevents
301 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
303 For ZOOM connection, the options targetImplementation{Id,Name,Version}
304 are set when Init Response is received.
306 New function ZOOM_connection_error_x similar to ZOOM_connection_error
307 but returns diagnostic set as well.
309 New function yaz_strerror which is a portable wrapper for
310 strerror/strerror_r/GetLastMessage.
312 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
313 is returned for MARC. If type is "oai", then OAI MARC is returned.
315 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
320 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
322 Fix bad race conditions on SIGTERM and terminate gracefully in
325 Move retrieval (data1) module to Zebra since nobody seems to be
328 Add GRS-1 render for ZOOM using same format as yaz-client.
332 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
334 Fix broken ESpec handling in data1 module.
336 SGML reader parses comments and makes them part of the data1 tree.
338 Added several type casts so that YAZ compiles as C++ code.
340 ZOOM didn't handle PDU encoding failures properly.
342 Added more Bib-1 diagnostics (approved extensions).
344 GNU configure: better check for iconv.
346 More portable use of accept, getpeername. Check for socklen_t. Use
347 int/size_t if socklen_t is not defined.
351 PQF parser rejects bad queries - including those with extra
352 characters in them. PQF parser used to silently ignore that.
353 Cleaner API for PQF added, which allows you to get detailed
354 error information for bad queries (see yaz/pquery.h).
356 Fixed bug in ZOOM_record_get for type "database".
358 Implemented mini iconv library supporting conversions between
359 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
361 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
365 Fixed ZOOM C record cache so that preferredRecordSyntax and
366 elementSetName is used to check for already fetched records.
370 Added three members in bend_initrequest structure to facilitate
371 character set negotiation.
373 Fixed a bug in frontend server that could cause indefinite
374 loops under rare conditions.
376 Revised character set utilities (charneg.h) so that encoding
377 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
379 For PQF, directive @term <type> sets term type for Scan/Search.
380 Here <type> is general, string, numeric, null. The term type
381 is inherited - just like @attr.
383 New call odr_set_charset that sets character set conversion for
384 international-strings on a ODR stream. Prototype is:
385 int odr_set_charset(ODR o, const char *to, const char *from);
386 The InternationalString is still represented as C string in YAZ
387 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
388 won't). On the protocol level, you can use any encoding.
390 Support for UNIX sockets in ZOOM.
392 Solaris recv sometimes returns errno == ENOENT. It is treated as
393 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
395 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
396 both client and server. Code by Morten Bøgeskov.
400 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
401 that they can be used directly from Visual Basic. You must recompile
402 your windows APP if you're using ZOOM.
404 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
405 Commands "lang" and "charset" sets language and character set respectively.
406 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
407 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
409 Attributes from multiple CCL fields may be OR'ed rather than merged
410 using directive "@field or". Fields are still merged by default -
411 equivalent to "@field merge".
413 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
416 Fixed bug in zget for parameter ExtendedServicesResponse.
422 Added PQF feature: '@attr type=value' may be written as '@type=value'.
424 Client displays USR.1:SearchResult-1 (hits per term).
426 Additional Search Info for search in Generic Frontend Server.
428 Fixed CCL parsing of "field=s".
430 WIN32 installer - using the excellent NSIS software from nullsoft.
432 Fixed CCL parsing of "field = - <number>".
434 Added function yaz_marc_decode that decodes MARC for line mode
435 display or XML (similar to that used by JZKit).
437 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
438 Z39.50. But ISO/ILL was, however.
440 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
441 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
443 http://lcweb.loc.gov/z3950/agency/amend/am2.html
444 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
448 New YAZ client features: Command completion and new commands:
449 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
450 Code provided by Jacob Poulsen.
452 New call oid_trav, that visits all registered OIDs via callback.
454 Function ZOOM_record_get now returns const char pointer rather than
455 void pointer. It saves a lot of type casts.
457 For YAZ client, command "auth" now allows you to set authentication
458 in IdPass style. It is enabled when three tokens are given - order
459 is user, group and password.
461 Fix memory leaks in MARC record handling for ZOOM.
463 New option for YAZ client, -k <kilobytes> that sets
464 maximum record size. Similar to -k option for generic frontend
465 server and yaz-ztest.
467 More fixes for scan. Non-zero stepSize handled. OID's fixes.
469 Prefix query parser reports "fail" when bad attribute set is given.
471 Fix in MARC decoder. Proximity logging. Fix for attribute set
472 in scan handler for server. Patches by Shigeru Ishida.
474 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
477 Configure option --with-openssl=<dir> now works when a directory is
478 specified. Patch provided by Morten Bøgeskov.
480 New option for YAZ client, -u <auth>, that sets authentication.
482 ZOOM fix: error information was sometimes "missing", since error
483 was cleared/reset too when it shouldn't.
485 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
489 Scan for ZOOM API. New object ZOOM_scanset. New functions
490 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
491 ZOOM_scanset_destroy.
493 New ZOOM function, ZOOM_connection_last_event, that returns type
494 of last event (such as "receive data", "send data", "apdu received",
497 New ZOOM option, schema, that specifies schema for retrieval.
499 New CCL feature. Qualifiers can be aliases for one or more
500 other qualifiers (if more than one is given, OR is used).
502 ZOOM uses named result sets if target supports it.
504 Two new YAZ client commands: . (dot, which sources a script of YAZ
505 client commands), and ! (to execute shell command.). Implemented
508 Working on Debian packages.
512 YAZ client enables named result sets only if target supports it.
514 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
516 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
517 with key="host" to get same result.
519 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
520 Function Z3950_resultset_record(s) returns references to records
521 "owned" by resultset. To become owner use Z3950_record_clone.
523 Function z_ext_record handles Extended Services. Thanks to
528 CCL Parser fix: ignore token comma when dealing with and-lists.
530 Documentation updates for COMSTACK.
532 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
533 Changed prototype Z3950_records. For some functions, int parameters
534 were changed to size_t.
536 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
539 New MARC decode/display function, marc_display_exl, which properly rejects
540 non-ISO2709 records. YAZ client uses it.
544 Fix bug: local attribute set wasn't set correctly in PQF strings.
548 * Old Z39.50 codecs no longer supported.
550 Added ZOOM C binding. See http://zoom.z3950.org/
552 Renamed states for COMSTACKs to avoid confusion with events.
554 Implemented cs_look and proper cs_rcvconnect.
556 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
558 Configure detects POSIX threads on OpenBSD.
560 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
561 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
563 When error is returned from present handler, non-surrogate diagnostic
564 is returned in present response (and fetch handler is no longer called).
566 * Minor adjustments to pquery parser (PQF). Token characters may be
567 escaped by using backslash (C-style).
569 PQF parser allows string attribute values to be specified. For @attr,
570 non-numeric characters after the equal-sign are treated as strings
571 (e.g. @attr 9=title).
573 CCL trunction character may be defined (@truncation in file)
575 * function zget_ExtendedServicesRequest sets waitAction to
576 waitIfPossible (was wait).
578 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
581 CCL operator names may be set in field definition files (CCL_bibset).
582 See ccl/bib1 for an example.
584 Fixes in ASN.1 compiler for C++ compatibility.
586 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
587 and "op_or" to avoid conflict with C++.
589 Fixed problem with GNU readline detection on Redhat 7.0.
591 Added step-size for Scan backend handler.
593 Fixed bug that made the frontend server crash when no attribute
594 set was specified for scan.
596 Front-end server automatically switches to original working directory
597 when installed as an NT service. Previously -w had to be specified to
600 Added extended attributes for retrieval module (data1), so that data1
601 records carry d1_readXML/SGML attributes. d1_read also supports
602 null-data rules ( <tag/>)
604 On UNIX when POSIX threads are available, a separate library libyazthread
605 is created. Programmers should link with that library and the yaz library
606 when using threads. The reason for the split was that some applications
607 on Linux, such as Apache, doesn't work well when using shared objects that
610 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
611 (or any frontend server) in SSL mode by specifying ssl: followed by
612 address. Only tested on UNIX.
614 Added feature for CCL module. Virtual structure s=al or s=ol generates
615 and-list and or-list respectively instead of phrase search.
619 * Added prefix "yaz_" for the functions log_init.., log_file.. and
620 log_mask_str. This was done to avoid name conflicts with other libraries
621 (such as other PHP extensions).
623 Added raw OID member for preferred record syntax (request_format_raw)
624 and returned record syntax (output_format_raw) for backend fetch method.
626 Config file yaz-config now accepts options so that it returns specific
627 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
629 Shared library support for UNIX using GNU libtool.
631 * Modified backend interface. Request/Response struct's replaced by
632 one read/write C struct. For example bend_fetchrequest and
633 bend_fetchresult have been replaced by single bend_fetch_rr struct.
634 Every handler - even search has to be registered in bend_init
635 handler. This means that the YAZ library no longer refers to
636 external functions and it makes it possible to make the whole
637 thing a single DLL/SO.
639 Added Segment handler for backend server.
641 Added Zmbol/Zebra administrative functions to YAZ client.
643 Threaded frontend server on UNIX (when POSIX Threads are available).
644 Starting the server with option -T enables multi-threading.
648 Added configure option --enable-comp/disable-comp to control use
649 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
650 located in sub directory asn.
652 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
653 in ${exec_prefix}/bin along with the other programs yaz-client and
656 GNU automake used to maintain makefiles.
660 Changed retrieval module so that we can load records with no abstract
661 syntax defined. Tagpaths in these records are fully composed of string
664 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
668 On UNIX, the generated makefile now supports a proper 'make install'.
669 The prefix can be set via GNU configure to set the install location
670 (default is /usr/local).
672 * YAZ programs client and ztest were renamed to yaz-client and
673 yaz-ztest to avoid conflicts when users install YAZ in "standard"
674 locations, such as /usr/bin,/usr/local/bin,etc.
676 * YAZ Header files were moved from include to include/yaz. YAZ Header
677 files are referred to as include <yaz/log.h> rather than <log.h>.
678 The YAZ include path (-I ..) is therefore the same as before. Programmers
679 should update their #include statements or use -Ipath/include/yaz
680 instead. The main motivation for doing this change is that YAZ header files
681 can be installed in "standard" locations /usr/include,/usr/local/include
682 without introducing conflicts, since ALL YAZ header files are stored
683 in subdirectory yaz (under /usr/include for example).
685 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
686 rather than project/workspace files. We switched because project files
687 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
690 Changed name of logging function, logf, to yaz_log, to prevent name
691 clash with some math-log functions. The YAZ header log.h defines logf
692 to yaz_log (#define) so there should be no incompatibilities by this
695 Added bend_start/bend_stop handlers for server. These handler are
696 called on start/stop of server. For windows they are called whenever
697 a service is started/stopped.
699 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
700 a fairly small ASN.1 compiler written in Tcl. The compiler is located
701 in util/yc.tcl. The auto-generated C code structures are, in a few
702 cases, incompatible with the old decoders. There are differences in the
703 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
704 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
705 The preprocessor variable ASN_COMPILED is defined when the compiled
706 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
707 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
708 wish to use the old encoders/decoders you can specify --disable-yc
711 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
712 version so that it supports both new - and old version of DB Update
714 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
715 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
716 change. The name parameter can be set to 0 in which no name is specified
717 for the construction. The macros odr_implicit and odr_explicit sets name
718 parameter to zero for the construction involved. New macros
719 odr_implicit_tag and odr_explicit_tag are similar to the others,
720 except that a name parameter is added. For programmers' that don't use
721 ODR they probably only need to change the call to z_APDU and z_External.
723 Added access control facility by interfacing the TCP wrapper library.
724 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
725 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
726 name of the daemon and enables the access control as specified in
727 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
729 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
730 den Dool <H.M.vdnDool@kub.nl>.
732 Added reference ID parameter to most functions in server API - refer
733 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
735 Changed name of ccl library to libccl.a (was ccl.a).
737 Fixed bug in decoder for Explain (Category TargetInfo).
739 Added support for GNU readline in client. Thanks to Jacob Poulsen
740 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
742 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
743 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
744 IMPLEMENTATION! This change was made to the development version before
745 the ZIG decided to retract the amendment. If any users MUST be
746 compatible with the original Update definition, PLEASE CONTACT US, and
747 we will include a separate definition corresponding to the old Update
748 ES. Note that because of the change to the ASN.1 of the
749 TaskPackageRecordStructure we cannot define a single structure that
750 will support both versions.
752 * Added const modifier to buffer parameter for some ODR/BER encoding
753 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
754 completeWAIS, odr_dumpBER.
756 Fixed bug in client.c which caused a crash when a scanResponse didn't
757 contain positionOfTerm.
759 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
760 * will cause an error in a client if a non-YAZ target sends both a
761 * list of Scan entries and non-surrogate diagnostics.
763 Retrieval module enhancements. Tag sets may be typed in the reference
764 to it. From the .abs-file the "tagset" directive takes a third optional
765 integer type for the tag set referenced. From a .tag-file the "include"
766 directive takes a third optional type as well. The old "type" directive
767 in the tag set itself is still recognized but acts as the default type
770 Backend interface change. Individual Scan terms returned from bend_scan
771 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
772 in include/backend.h.
774 Retrieval module enhancements. Multiple tag sets and attribute sets may
775 be specified in abstract syntax specs. Revised the error/warning for
776 logging messages reported by the retrieval module when reading the
779 Object Identifier system (oid_..) changed. The API is backwards
780 compatible but the oid-routines now allocates new OID's when needed.
781 Raw OID's may be specified in oid_getvalbyname.
783 YAZ now uses GNU configure to generate Makefile(s).
785 * Minor changes in some of the member names of DeleteResultSetRequest and
786 DeleteResultSetResponse. See include/proto.h.
788 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
789 and added member 'languages' in TargetInfo (which was missing).
791 Changed the way attribute sets are handled in the retrieval
792 module. These are now cached, just like the abstract syntaxes
795 Changed YAZ so that it links with compiled ASN.1.
797 Added Explain-schema definitions and mapping routines. The following
798 Explain categories have been implemented: AttributeDetails,
799 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
801 Fixed minor bug in Windows version of Server Library.
803 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
805 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
807 Added EXTERNAL: UNIverse Resource Report (non-standard).
809 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
810 ENUMERATED and SET OF.
812 * Added 'const' to some of the char pointer arguments for the
813 functions, data1_read_node, data1_getelementbytagname,
814 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
817 Fixed bug in data1_insert_taggeddata - the last_child member of
818 parent wasn't initialised.
820 * Changed data1_read_record and data1_read_node so that the supplied
821 "SGML"-buffer is read-only. In particular the resulting data1 - tree
822 doesn't refer to any parts of the "SGML"-buffer.
824 Fixed bug in server library (Windows version of statserv_remove).
826 * Changed code so that it compiles as C++. The type definition
827 of Odr_fun which is a member of Odr_arm was changed. The result is,
828 that an explicit typecast is needed for the fun pointer when
829 using Odr_arm - as in:
830 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
832 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
834 Implemented the new structured date and time definition as approved
835 by the ZIG. Added schemaId element to the specificTag in Espec-1
836 (also approved at the last ZIG). Thanks to RVDM.
838 Added some Object identifiers (RVDM).
840 Changed the Update Extended Service (RVDM).
842 Added command "refid" to client which specifies referenceId for
843 the following requests.
845 Implemented extended service handling for server. See ztest.c
846 for an example as well as backend.h. New handlers are registerd
849 * Changed interface for sort in server.
851 Added new members to statserv_options_block. It allows a server
852 to read options from another source than just the command line. Thanks
853 to Charles Woodfield.
855 * Changed definition of Z_Triple in file prt-grs.h - member boolean
856 renamed to zboolean. Some C++ compilers complained about the name.
858 Minor changes to gils.abs. Added index 's' (sort) on title
859 and date/time-last-modified.
863 Fixed bug in server library regarding inetd mode (-i). This bug
864 was introduced by release 1.4.
868 Added sort facility in client and backend server interface.
870 Fixed problem with dependencies in Makefile(s).
872 Fixed bugs for encoders/decoders of extended services and
875 Implemented sub-tree feature for schemas. Sub-trees are
876 referenced in *.abs-files. See explain.abs for an example
877 of the use of this feature.
879 Modified bib1.att; local attributes for ANY didn't include
880 ANY itself (only affects use of the retrieval module).
882 Fixed bug in plain SGML reader in function data1_read_node:
883 tags with prefix "var" was incorrectly interpreted as variants.
885 Added feature "sub-schemas" to enable references to - and definitions
886 of - group of elements.
888 * Removed member parent from type data1_element (in data1.h).
890 Implemented function odr_nullval() that returns the value of
893 * Removed member num_children from data1_node (in data1.h).
895 Made NT service interface part of the server library. The
896 function statserv_main uses the NT service when required and
897 calls the statserv_start / statserv_close routines.
899 Routine zget_SearchRequest and zget_PresentRequest fills
900 resultSetName/Id member with "default" instead of "Default".
902 Fixed memory leak in server. Request queue member wasn't freed.
904 Fixed nmem_exit so that memory is freed.
908 Revised the CCL parser utility to be thread safe.
910 Added function, oid_ent_to_oid, to replace the function
911 oid_getoidbyent, which is not thread safe.
913 * Added nmem_init and nmem_exit to initialize and release
914 NMEM resources. Function nmem_init should be called once in the
915 initial thread before NMEM/ODR is used. statserv.c and client.c
916 have been changed accordingly. The change was necessary to make
917 NMEM thread safe. The NMEM memory pool is shared amongst threads
918 in a process. Unix-based applications will still work fine without
921 Added NT Services interface for the the Z39.50 (statserv) Server.
922 Refer to the ztest.c source on the usage.
924 Windows 95/NT port using MSVC5.0. Project files are included in the
927 * Defined new 'global' handle for the retrieval (data1) system. The
928 new handled, data1_handle, describes the state of the data1 system.
929 This handle is passed as first argument to virtually all
930 data1 related routines. The functions data1_create and data1_destroy
931 creates and destroys a data1 handle respectively.
933 Added ODR encode stream member to all backend request structures
934 init, search, scan etc. This stream should be used to allocate all
935 memory used for the response when thread safe operation is needed.
937 Changed the comstack utility, cs_addstr, to be thread safe. The
938 returned hostname string returned by the function is now part the
941 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
942 function. The cs_straddr takes a COMSTACK handle as argument, so this
943 function must be used after cs_create and before bind/connect.
944 This function is thread safe.
946 Moved test server to 'ztest' directory - generic server code still
947 in 'server' directory.
949 Made prefix query (pquery.c) utility thread safe.
951 Added new function modifier YAZ_EXPORT to 'export' public DLL
952 functions when using windows (see include/yconfig.h).
954 Added definitions to the OID database (util/oid.c) (RVDM).
956 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
958 Added call to ccl_rpn_delete in client program.
960 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
961 release of RPN structure.
963 Added support for C++, headers uses extern "C" for public definitions.
964 With input from RVDM.
966 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
967 Thanks to Ronald van der Meer (RVDM).
969 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
971 Added support for private extensions to the OID database
972 (oid_setprivateoids()). Thanks to RVDM.
974 Added optional, physical ANY (key replication)
976 Fixed null-reference problem in GRS-1 output filter.
978 Proximity operator added to Prefix Query Format (PQF).
980 In test client command "base" accepts multiple databases.
982 Fixed bug in cs_close stack that caused trouble with WINSOCK.
986 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
988 Smallish bug-fixes in the new encoders/decoders (explain).
990 Bug fixed in DeleteRequest.
992 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
994 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
996 Added SOIF syntax (using private OID for now) to retrieval module and client.
998 Added Update extended service.
1000 Added SearchResult-1 additional info structure.
1002 Added optional CCL (ISO8777) interpreter as separate module. Available
1005 --- 1.2 1996/6/10 (1st anniversary release)
1007 Added Summary record syntax. Lightly tested.
1009 Added OPAC record syntax. Untested.
1011 Added ResourceReport service encoders/decoders. Untested.
1013 Fixed bug in z_Unit - wrong tagging on unitSystem.
1015 Fixed bug in the DiagRecs decoder.
1017 Added options for max PDU size and session timeout to frontend-server.
1019 Added documentation of query-language parsers and other supporting utilities.
1021 [frontend-server] Added Attribute set to the bend_scanrequest API.
1023 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1024 surrogate diagnostics were generated.
1026 [retrieval] Allow multiple local values for attribute.
1028 [retrieval] Allow multiple attributes per element in .abs files. index type.
1030 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1032 --- 1.1pl2 1996/4/10
1034 Minor changes, mostly specific to Zebra's requirements (retrieval)
1038 Repaired bug in frontend server when running multiple listening
1039 endpoints in dynamic mode.
1041 z_External() now won't break if a known, ASN.1 value comes encapsulated
1042 in an octet-string. The value will pass through unmodified in an Odr_oct.
1044 Added a bit of code to the demo client to decode & display
1045 ASN.1-structured records represented in the octet-aligned branch of
1046 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1048 Added z_ext_getentbyref() to the ASN module. Doc updated.
1050 * Completed the SCAN definition in the ASN module. This may break SCAN
1051 code based on older YAZ-versions at compile-time. The fix is easy -
1054 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1055 under the SCAN definition. Remember to initialize this, server-people.
1057 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1058 that this does not extend to ODR and ASN.
1060 Comstack allows insertion of established socket (primarily for
1061 inetd-operation of servers). Doc updated.
1063 Front-end server can now start from the inetd in TCP mode. Doc
1066 --- 1.0pl4 1996/1/24
1070 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1071 the rank and record number.
1073 Adjustments to the frontend server.
1075 Fixed diagnostic BER dumper. It ignored the file argument.
1079 Various changes to retrieval module.
1081 Changed the union discriminators of the protocol files from enums to
1082 ints paired with #defines.
1084 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1087 *Changed operator in the RPN structure to 'roperator', again to avoid a
1090 Fixed problems in Explain decoders/encoders.
1092 --- 1.0pl2 1995/12/6
1094 Memory bug in log module fixed.
1096 --- 1.0pl1 1995/12/5
1098 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1100 Bug in Explain DatabaseInfo module fixed.
1102 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1106 The shift to v1.0 signals that we now consider the *core* functionality
1107 of YAZ reasonably stable (the core being more or less equivalent to
1108 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1109 tested (Explain not at all - though that will happen soonish).
1111 Minor changes to code to support Windows port.
1113 Various minor changes after we're getting to use GRS-1 & co. more.
1115 Added Espec-1 format.
1117 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1118 of the protocol and it cannot be selected when encoding (maps into 'string'
1119 when decoding). Needed to talk to some servers.
1121 Demo client can request simple element set names.
1123 Added Diagnostic Format encoders/decoders.
1125 Added simple Close handling to frontend server (no hooks for resource
1126 reporting yet), and demonstration client.
1128 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1130 --- 1.0b3 1995/08/24
1132 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1133 handled incorrectly when records were requested in the searchResponse. This
1134 will only affect you if you use the frontend-server.
1136 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1137 Test-client will ask for and print GRS1. Ztest will return dummy records
1140 Added Explain encoders/decoders to the service-level API. Untested.
1142 Added Extended Services: Item Order encoders and decoders to the Service-
1143 level API. Untested. We could use a recent copy of the pertinent bits
1144 of the ILL protocol to add those bits.
1146 Added diagnostic format 1 encoders/decoders to the service-level API.
1149 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1150 odr_cons.c, which causes a more correct output.
1152 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1153 was always set to 0 when no records were requested in the searchRequest.
1155 * Added better external-handling. This shouldn't harm old code that
1156 *encodes* externals. It can break code that looks for a
1157 'single-ASN1-type' representation, since those types that are known
1158 are now decoded immediately. Look at the SUTRS sample code in
1159 seshigh.c and client.c. Documentation updated.
1161 Handling of structured records in bend_fetchresponse. Length -1 marks
1162 structured record, type is deduced from format field.
1164 --- 1.0b2 1995/06/27
1165 Fairly quick maintenance release to add SUTRS support.
1167 Fixed handling of SUTRS records in the demonstration client.
1169 * Added format field to the bend_fetchrequest and bend_fetchresponce
1170 structures of the backend API (frontend server). When the record is
1171 returned, the value of the format field is mapped to an OID. The
1172 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1173 of the record. The special value VAL_NONE in the bend_request means
1174 that no specific format was requested by the client. Documentation
1175 updated accordingly. Test server (ztest) will return a fixed dummy
1176 SUTRS record if your client requests SUTRS.
1178 Documentation updated accordingly.
1180 You can now set external libraries and RANLIB support in the top-level
1184 First public release.