1 Possible compatibility problems with earlier versions marked with '*'.
5 CQL changes to reflect recent changes to the specification:
6 * Documentation talks about context sets instead of index sets.
7 * Documentation talks about indexes instead of qualifiers.
8 * The CQL-to-PQF transformer's configuration file now uses
9 "index.set.name = <attributes>" instead of the old form
10 "qualifier.set.name = <attributes>". (Both forms are still
11 understood but the latter is deprecated.)
12 * CQL terms with no explicit index specified are now interpreted as
13 cql.serverChoice instead of srw.serverChoice (which of course
14 behaves exactly the same.)
18 MARC conversion can now generate ISO2709 output in another
19 character set. yaz-marcdump uses this facility if you invoke it
22 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
23 functions from there can be used from C++.
27 Frontend server now transfers memory from decoded packages to stream
30 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
31 references to show up.
33 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
34 the ZOOM Abstract API. The older names for the same options are still
35 also supported for the benefit of old applications.
37 ZOOM-C supports "implementationId" and "implementationVersion" options
38 to go along with "implementationName". These allow the user code to
39 specify identification strings to be sent to servers.
40 Add OID for the new ExtLite attribute set.
42 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
43 as requested/supplid by Ere Maijala <ere@atp.fi>
45 For generic frontend server, reverse the order of
46 "toolkit-supplied / application-supplied" strings sent as implementationId,
47 Name and Version. Also, remove the spaces around the slash. This brings
48 the GFS in line with the behaviour of ZOOM-C on the client side.
50 Add function ZOOM_scanset_display_term.
52 yaz-client shows scan displayTerm if present.
54 Utility yaz-iconv is now installed by default along with the man page
57 Extend configure check for OpenSSL to use pkg-config where available (such
60 Incorporate patch by Morten Bogeskov which allows a Unix file socket
61 server to specify uid/gid/mask for socket using the format
62 unix:[user=uid,][group=gid,][umask=mask,]file=path
63 If file= is omitted the existing format is assumed, e.g.
65 in which case the mask is 0666 (rw for everybody).
67 Major restructure of YAZ source. All source in libyaz is in src directory.
68 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
69 util (utility programs such as ASN.1 compiler, yaz-marcdump).
71 Added man page for utility yaz-marcdump (used to be called marcdump).
72 yaz-marcdump is installed by 'make install'.
74 Fixed a memory leak in Generic Frontend Server that occurred when decoding
75 of incoming package failed.
77 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
79 Change prototype of odr_perror: add const to message string.
81 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
83 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
84 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
85 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
86 DNS lookup. There should not be any compatibility problems with this
87 assuming that blocking=1 or 0 is used.
89 Fix bad reference in UNIX comstack in function cs_addrstr.
91 Fix for compilation on AIX.
93 The generic front-end server (server/seshigh.c) now supports returning
94 Init diagnostics to the client in User-information-field, in
95 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
100 Allow any CQL relation (not just all,any,exact,scr).
102 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
103 that features the same UI.
105 Implemented command update0 in YAZ client which is equivalent to
106 update but uses old of Ext Update ASN.1.
108 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
109 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
110 Previously no OID was used for this info.
112 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
113 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
114 returns 'malformed search term' otherwise.
116 SortResponse member resultCount now set to NULL in sort handler of
119 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
122 Add three new utility functions for translating OIDs between various
123 formats -- symbolic name such as "Usmarc", minus-1-terminated int
124 arrays and dotted strings such as "1.2.840.10003.9.5.1":
125 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
126 char *oid_to_dotstring(const int *oid, char *oidbuf);
127 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
129 Reverted modifications for ES Update definition for z_IU0Update
130 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
131 is back to YAZ 2.0.2.
133 String value attributes for CCL parser.
135 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
136 which their FirstSearch server returns in Init responses, sometimes
137 carrying useful diagnostic information when Init fails. This has the
138 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
139 "z39.50/oclcui.asn", where its definition is somewhat different from
140 what OCLC document on their web-site, as required to interoperate with
143 Support for anonymous authentication in yaz-client. Use the command
146 * Fix the OID of the Index Data-local "admin" Extended Service from
147 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
148 the 1000, which indicates a locally-defined OID, was a mistake.
152 Fix CCL directive @case handling so that it affects string match for
153 both CCL keywords and qualifiers.
155 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
156 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
157 Decoder has been updated with ASN.1 changes as listed in
158 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
159 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
160 z_IUUpdate, remains unchanged.
162 ZOOM_record_get may now return a record in a specific character set.
163 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
164 "from" is the character set of record as returned by target. "to" is
165 the character set to be returned. If omitted, "to" is UTF-8.
167 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
169 New ODR utility, odr_getelement, which returns name of element for
170 which encoding/decoding failed.
172 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
173 in cases where a required element was omitted.
175 Bug fix: some MARC8 sequences were not converted.
177 New ZOOM option "step" which specifies number of records to be
178 retrieved in one chunk. Used in conjunction with "start" and "count".
180 SRW support for yaz-client. Use scheme http: to use it, e.g.
183 yaz-client no longer does (un)intelligent character set conversions
184 by default. Can be enabled with charset and marc_charset commands.
186 xmalloc trace fix for 64-bit systems such as DEC alpha.
188 Solaris 2.6 compile fix.
190 New function, cql_strerror() translates SRW error codes, as returned
191 by cql_transform_error(), into human-readable English strings. Used
192 in yaz-client diagnostics when appropriate.
194 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
195 converts it into a type-1 query which is sent to the server. This
196 makes CQL available for use with all Z-servers, as opposed to the tiny
197 minority that can handle CQL queries themselves.
201 New Debian package layout similar to the Redhat Package layout.
203 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
204 and search result respectively.
208 Redhat package is now several packages: libyaz (runtime libraries),
209 libyaz-devel (development and documentation, and yaz (utility programs).
210 Package spec file by Morten Bøgeskov.
212 New member 'schema' in struct bend_fetch_rr which the name of requested
213 schema (SRW/SRU) for record (or NULL if none was given). The fetch
214 handler MAY set this to reflect the schema of the returned record.
216 New member 'display_term' in struct scan_entry. GFS now sets member entries
217 and allocates scan entries to be filled by user scan handler. In previous
218 version, entries member was allocated by the scan handler. That still works,
219 but the GFS will ignore member display_term - assuming it was NOT set by
220 the handler. The fact that the GFS now allocates the entries both allows
221 for new members and makes a scan handler easier to write.
223 Fix CQL lex buffer overflow.
225 SRW/SRU recordPacking. For SRW default recordPacking is string. For
226 SRU default recordPacking is string.
228 SRU protocol support for frontend server.
230 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
232 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
234 Added scan for the ZOOM shell (zoomsh).
238 * String Identifers for Schemas (Amendment 5).
239 http://lcweb.loc.gov/z3950/agency/amend/am5.html
240 Old definition for schema
241 Odr_oid *schema; /* OPT */
246 Z_InternationalString *uri;
247 #define Z_Schema_oid 1
248 #define Z_Schema_uri 2
251 * resultCount parameter to Sort Response (Amendment 1).
252 http://lcweb.loc.gov/z3950/agency/amend/am1.html
254 Support for SRW 1.0 over HTTP. This is an optional feature and
255 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
258 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
259 on the same port. SRW SearchRetrieveRequests are mapped
260 to bend_init,bend_search,bend_fetch,bend_close.
262 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
264 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
265 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
267 ZOOM connections are SRW based if schem http is used for hostname
268 in connect, e.g. z = ZOOM_connection_new("http://myserver");
269 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
271 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
272 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
273 distance=n, order=true/false, relation=le, prox unit=word. If
274 n is omitted, distance 1 is used.
276 Fixed problem with C compiler include path in wrong order.
278 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
279 on Solaris. Patch from Ko van der Sloot.
281 New MARC decode API. All new functions operate on a yaz_marc_t
282 handle. The most important new functions are: yaz_marc_create,
283 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
284 decode and destroy respectively. Decoder can produce formats
285 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
286 include/yaz/marcdisp.h.
288 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
289 to UTF-8, UCS-32, wchar_t or Latin-1.
291 * Prototypes for yaz_iconv_-functions moved to separate header
292 include/yaz/yaz-iconv.h.
294 Make a few private functions 'static' in unix.c. This prevents
295 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
297 For ZOOM connection, the options targetImplementation{Id,Name,Version}
298 are set when Init Response is received.
300 New function ZOOM_connection_error_x similar to ZOOM_connection_error
301 but returns diagnostic set as well.
303 New function yaz_strerror which is a portable wrapper for
304 strerror/strerror_r/GetLastMessage.
306 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
307 is returned for MARC. If type is "oai", then OAI MARC is returned.
309 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
314 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
316 Fix bad race conditions on SIGTERM and terminate gracefully in
319 Move retrieval (data1) module to Zebra since nobody seems to be
322 Add GRS-1 render for ZOOM using same format as yaz-client.
326 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
328 Fix broken ESpec handling in data1 module.
330 SGML reader parses comments and makes them part of the data1 tree.
332 Added several type casts so that YAZ compiles as C++ code.
334 ZOOM didn't handle PDU encoding failures properly.
336 Added more Bib-1 diagnostics (approved extensions).
338 GNU configure: better check for iconv.
340 More portable use of accept, getpeername. Check for socklen_t. Use
341 int/size_t if socklen_t is not defined.
345 PQF parser rejects bad queries - including those with extra
346 characters in them. PQF parser used to silently ignore that.
347 Cleaner API for PQF added, which allows you to get detailed
348 error information for bad queries (see yaz/pquery.h).
350 Fixed bug in ZOOM_record_get for type "database".
352 Implemented mini iconv library supporting conversions between
353 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
355 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
359 Fixed ZOOM C record cache so that preferredRecordSyntax and
360 elementSetName is used to check for already fetched records.
364 Added three members in bend_initrequest structure to facilitate
365 character set negotiation.
367 Fixed a bug in frontend server that could cause indefinite
368 loops under rare conditions.
370 Revised character set utilities (charneg.h) so that encoding
371 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
373 For PQF, directive @term <type> sets term type for Scan/Search.
374 Here <type> is general, string, numeric, null. The term type
375 is inherited - just like @attr.
377 New call odr_set_charset that sets character set conversion for
378 international-strings on a ODR stream. Prototype is:
379 int odr_set_charset(ODR o, const char *to, const char *from);
380 The InternationalString is still represented as C string in YAZ
381 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
382 won't). On the protocol level, you can use any encoding.
384 Support for UNIX sockets in ZOOM.
386 Solaris recv sometimes returns errno == ENOENT. It is treated as
387 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
389 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
390 both client and server. Code by Morten Bøgeskov.
394 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
395 that they can be used directly from Visual Basic. You must recompile
396 your windows APP if you're using ZOOM.
398 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
399 Commands "lang" and "charset" sets language and character set respectively.
400 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
401 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
403 Attributes from multiple CCL fields may be OR'ed rather than merged
404 using directive "@field or". Fields are still merged by default -
405 equivalent to "@field merge".
407 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
410 Fixed bug in zget for parameter ExtendedServicesResponse.
416 Added PQF feature: '@attr type=value' may be written as '@type=value'.
418 Client displays USR.1:SearchResult-1 (hits per term).
420 Additional Search Info for search in Generic Frontend Server.
422 Fixed CCL parsing of "field=s".
424 WIN32 installer - using the excellent NSIS software from nullsoft.
426 Fixed CCL parsing of "field = - <number>".
428 Added function yaz_marc_decode that decodes MARC for line mode
429 display or XML (similar to that used by JZKit).
431 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
432 Z39.50. But ISO/ILL was, however.
434 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
435 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
437 http://lcweb.loc.gov/z3950/agency/amend/am2.html
438 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
442 New YAZ client features: Command completion and new commands:
443 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
444 Code provided by Jacob Poulsen.
446 New call oid_trav, that visits all registered OIDs via callback.
448 Function ZOOM_record_get now returns const char pointer rather than
449 void pointer. It saves a lot of type casts.
451 For YAZ client, command "auth" now allows you to set authentication
452 in IdPass style. It is enabled when three tokens are given - order
453 is user, group and password.
455 Fix memory leaks in MARC record handling for ZOOM.
457 New option for YAZ client, -k <kilobytes> that sets
458 maximum record size. Similar to -k option for generic frontend
459 server and yaz-ztest.
461 More fixes for scan. Non-zero stepSize handled. OID's fixes.
463 Prefix query parser reports "fail" when bad attribute set is given.
465 Fix in MARC decoder. Proximity logging. Fix for attribute set
466 in scan handler for server. Patches by Shigeru Ishida.
468 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
471 Configure option --with-openssl=<dir> now works when a directory is
472 specified. Patch provided by Morten Bøgeskov.
474 New option for YAZ client, -u <auth>, that sets authentication.
476 ZOOM fix: error information was sometimes "missing", since error
477 was cleared/reset too when it shouldn't.
479 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
483 Scan for ZOOM API. New object ZOOM_scanset. New functions
484 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
485 ZOOM_scanset_destroy.
487 New ZOOM function, ZOOM_connection_last_event, that returns type
488 of last event (such as "receive data", "send data", "apdu received",
491 New ZOOM option, schema, that specifies schema for retrieval.
493 New CCL feature. Qualifiers can be aliases for one or more
494 other qualifiers (if more than one is given, OR is used).
496 ZOOM uses named result sets if target supports it.
498 Two new YAZ client commands: . (dot, which sources a script of YAZ
499 client commands), and ! (to execute shell command.). Implemented
502 Working on Debian packages.
506 YAZ client enables named result sets only if target supports it.
508 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
510 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
511 with key="host" to get same result.
513 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
514 Function Z3950_resultset_record(s) returns references to records
515 "owned" by resultset. To become owner use Z3950_record_clone.
517 Function z_ext_record handles Extended Services. Thanks to
522 CCL Parser fix: ignore token comma when dealing with and-lists.
524 Documentation updates for COMSTACK.
526 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
527 Changed prototype Z3950_records. For some functions, int parameters
528 were changed to size_t.
530 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
533 New MARC decode/display function, marc_display_exl, which properly rejects
534 non-ISO2709 records. YAZ client uses it.
538 Fix bug: local attribute set wasn't set correctly in PQF strings.
542 * Old Z39.50 codecs no longer supported.
544 Added ZOOM C binding. See http://zoom.z3950.org/
546 Renamed states for COMSTACKs to avoid confusion with events.
548 Implemented cs_look and proper cs_rcvconnect.
550 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
552 Configure detects POSIX threads on OpenBSD.
554 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
555 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
557 When error is returned from present handler, non-surrogate diagnostic
558 is returned in present response (and fetch handler is no longer called).
560 * Minor adjustments to pquery parser (PQF). Token characters may be
561 escaped by using backslash (C-style).
563 PQF parser allows string attribute values to be specified. For @attr,
564 non-numeric characters after the equal-sign are treated as strings
565 (e.g. @attr 9=title).
567 CCL trunction character may be defined (@truncation in file)
569 * function zget_ExtendedServicesRequest sets waitAction to
570 waitIfPossible (was wait).
572 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
575 CCL operator names may be set in field definition files (CCL_bibset).
576 See ccl/bib1 for an example.
578 Fixes in ASN.1 compiler for C++ compatibility.
580 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
581 and "op_or" to avoid conflict with C++.
583 Fixed problem with GNU readline detection on Redhat 7.0.
585 Added step-size for Scan backend handler.
587 Fixed bug that made the frontend server crash when no attribute
588 set was specified for scan.
590 Front-end server automatically switches to original working directory
591 when installed as an NT service. Previously -w had to be specified to
594 Added extended attributes for retrieval module (data1), so that data1
595 records carry d1_readXML/SGML attributes. d1_read also supports
596 null-data rules ( <tag/>)
598 On UNIX when POSIX threads are available, a separate library libyazthread
599 is created. Programmers should link with that library and the yaz library
600 when using threads. The reason for the split was that some applications
601 on Linux, such as Apache, doesn't work well when using shared objects that
604 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
605 (or any frontend server) in SSL mode by specifying ssl: followed by
606 address. Only tested on UNIX.
608 Added feature for CCL module. Virtual structure s=al or s=ol generates
609 and-list and or-list respectively instead of phrase search.
613 * Added prefix "yaz_" for the functions log_init.., log_file.. and
614 log_mask_str. This was done to avoid name conflicts with other libraries
615 (such as other PHP extensions).
617 Added raw OID member for preferred record syntax (request_format_raw)
618 and returned record syntax (output_format_raw) for backend fetch method.
620 Config file yaz-config now accepts options so that it returns specific
621 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
623 Shared library support for UNIX using GNU libtool.
625 * Modified backend interface. Request/Response struct's replaced by
626 one read/write C struct. For example bend_fetchrequest and
627 bend_fetchresult have been replaced by single bend_fetch_rr struct.
628 Every handler - even search has to be registered in bend_init
629 handler. This means that the YAZ library no longer refers to
630 external functions and it makes it possible to make the whole
631 thing a single DLL/SO.
633 Added Segment handler for backend server.
635 Added Zmbol/Zebra administrative functions to YAZ client.
637 Threaded frontend server on UNIX (when POSIX Threads are available).
638 Starting the server with option -T enables multi-threading.
642 Added configure option --enable-comp/disable-comp to control use
643 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
644 located in sub directory asn.
646 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
647 in ${exec_prefix}/bin along with the other programs yaz-client and
650 GNU automake used to maintain makefiles.
654 Changed retrieval module so that we can load records with no abstract
655 syntax defined. Tagpaths in these records are fully composed of string
658 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
662 On UNIX, the generated makefile now supports a proper 'make install'.
663 The prefix can be set via GNU configure to set the install location
664 (default is /usr/local).
666 * YAZ programs client and ztest were renamed to yaz-client and
667 yaz-ztest to avoid conflicts when users install YAZ in "standard"
668 locations, such as /usr/bin,/usr/local/bin,etc.
670 * YAZ Header files were moved from include to include/yaz. YAZ Header
671 files are referred to as include <yaz/log.h> rather than <log.h>.
672 The YAZ include path (-I ..) is therefore the same as before. Programmers
673 should update their #include statements or use -Ipath/include/yaz
674 instead. The main motivation for doing this change is that YAZ header files
675 can be installed in "standard" locations /usr/include,/usr/local/include
676 without introducing conflicts, since ALL YAZ header files are stored
677 in subdirectory yaz (under /usr/include for example).
679 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
680 rather than project/workspace files. We switched because project files
681 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
684 Changed name of logging function, logf, to yaz_log, to prevent name
685 clash with some math-log functions. The YAZ header log.h defines logf
686 to yaz_log (#define) so there should be no incompatibilities by this
689 Added bend_start/bend_stop handlers for server. These handler are
690 called on start/stop of server. For windows they are called whenever
691 a service is started/stopped.
693 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
694 a fairly small ASN.1 compiler written in Tcl. The compiler is located
695 in util/yc.tcl. The auto-generated C code structures are, in a few
696 cases, incompatible with the old decoders. There are differences in the
697 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
698 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
699 The preprocessor variable ASN_COMPILED is defined when the compiled
700 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
701 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
702 wish to use the old encoders/decoders you can specify --disable-yc
705 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
706 version so that it supports both new - and old version of DB Update
708 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
709 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
710 change. The name parameter can be set to 0 in which no name is specified
711 for the construction. The macros odr_implicit and odr_explicit sets name
712 parameter to zero for the construction involved. New macros
713 odr_implicit_tag and odr_explicit_tag are similar to the others,
714 except that a name parameter is added. For programmers' that don't use
715 ODR they probably only need to change the call to z_APDU and z_External.
717 Added access control facility by interfacing the TCP wrapper library.
718 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
719 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
720 name of the daemon and enables the access control as specified in
721 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
723 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
724 den Dool <H.M.vdnDool@kub.nl>.
726 Added reference ID parameter to most functions in server API - refer
727 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
729 Changed name of ccl library to libccl.a (was ccl.a).
731 Fixed bug in decoder for Explain (Category TargetInfo).
733 Added support for GNU readline in client. Thanks to Jacob Poulsen
734 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
736 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
737 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
738 IMPLEMENTATION! This change was made to the development version before
739 the ZIG decided to retract the amendment. If any users MUST be
740 compatible with the original Update definition, PLEASE CONTACT US, and
741 we will include a separate definition corresponding to the old Update
742 ES. Note that because of the change to the ASN.1 of the
743 TaskPackageRecordStructure we cannot define a single structure that
744 will support both versions.
746 * Added const modifier to buffer parameter for some ODR/BER encoding
747 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
748 completeWAIS, odr_dumpBER.
750 Fixed bug in client.c which caused a crash when a scanResponse didn't
751 contain positionOfTerm.
753 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
754 * will cause an error in a client if a non-YAZ target sends both a
755 * list of Scan entries and non-surrogate diagnostics.
757 Retrieval module enhancements. Tag sets may be typed in the reference
758 to it. From the .abs-file the "tagset" directive takes a third optional
759 integer type for the tag set referenced. From a .tag-file the "include"
760 directive takes a third optional type as well. The old "type" directive
761 in the tag set itself is still recognized but acts as the default type
764 Backend interface change. Individual Scan terms returned from bend_scan
765 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
766 in include/backend.h.
768 Retrieval module enhancements. Multiple tag sets and attribute sets may
769 be specified in abstract syntax specs. Revised the error/warning for
770 logging messages reported by the retrieval module when reading the
773 Object Identifier system (oid_..) changed. The API is backwards
774 compatible but the oid-routines now allocates new OID's when needed.
775 Raw OID's may be specified in oid_getvalbyname.
777 YAZ now uses GNU configure to generate Makefile(s).
779 * Minor changes in some of the member names of DeleteResultSetRequest and
780 DeleteResultSetResponse. See include/proto.h.
782 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
783 and added member 'languages' in TargetInfo (which was missing).
785 Changed the way attribute sets are handled in the retrieval
786 module. These are now cached, just like the abstract syntaxes
789 Changed YAZ so that it links with compiled ASN.1.
791 Added Explain-schema definitions and mapping routines. The following
792 Explain categories have been implemented: AttributeDetails,
793 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
795 Fixed minor bug in Windows version of Server Library.
797 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
799 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
801 Added EXTERNAL: UNIverse Resource Report (non-standard).
803 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
804 ENUMERATED and SET OF.
806 * Added 'const' to some of the char pointer arguments for the
807 functions, data1_read_node, data1_getelementbytagname,
808 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
811 Fixed bug in data1_insert_taggeddata - the last_child member of
812 parent wasn't initialised.
814 * Changed data1_read_record and data1_read_node so that the supplied
815 "SGML"-buffer is read-only. In particular the resulting data1 - tree
816 doesn't refer to any parts of the "SGML"-buffer.
818 Fixed bug in server library (Windows version of statserv_remove).
820 * Changed code so that it compiles as C++. The type definition
821 of Odr_fun which is a member of Odr_arm was changed. The result is,
822 that an explicit typecast is needed for the fun pointer when
823 using Odr_arm - as in:
824 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
826 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
828 Implemented the new structured date and time definition as approved
829 by the ZIG. Added schemaId element to the specificTag in Espec-1
830 (also approved at the last ZIG). Thanks to RVDM.
832 Added some Object identifiers (RVDM).
834 Changed the Update Extended Service (RVDM).
836 Added command "refid" to client which specifies referenceId for
837 the following requests.
839 Implemented extended service handling for server. See ztest.c
840 for an example as well as backend.h. New handlers are registerd
843 * Changed interface for sort in server.
845 Added new members to statserv_options_block. It allows a server
846 to read options from another source than just the command line. Thanks
847 to Charles Woodfield.
849 * Changed definition of Z_Triple in file prt-grs.h - member boolean
850 renamed to zboolean. Some C++ compilers complained about the name.
852 Minor changes to gils.abs. Added index 's' (sort) on title
853 and date/time-last-modified.
857 Fixed bug in server library regarding inetd mode (-i). This bug
858 was introduced by release 1.4.
862 Added sort facility in client and backend server interface.
864 Fixed problem with dependencies in Makefile(s).
866 Fixed bugs for encoders/decoders of extended services and
869 Implemented sub-tree feature for schemas. Sub-trees are
870 referenced in *.abs-files. See explain.abs for an example
871 of the use of this feature.
873 Modified bib1.att; local attributes for ANY didn't include
874 ANY itself (only affects use of the retrieval module).
876 Fixed bug in plain SGML reader in function data1_read_node:
877 tags with prefix "var" was incorrectly interpreted as variants.
879 Added feature "sub-schemas" to enable references to - and definitions
880 of - group of elements.
882 * Removed member parent from type data1_element (in data1.h).
884 Implemented function odr_nullval() that returns the value of
887 * Removed member num_children from data1_node (in data1.h).
889 Made NT service interface part of the server library. The
890 function statserv_main uses the NT service when required and
891 calls the statserv_start / statserv_close routines.
893 Routine zget_SearchRequest and zget_PresentRequest fills
894 resultSetName/Id member with "default" instead of "Default".
896 Fixed memory leak in server. Request queue member wasn't freed.
898 Fixed nmem_exit so that memory is freed.
902 Revised the CCL parser utility to be thread safe.
904 Added function, oid_ent_to_oid, to replace the function
905 oid_getoidbyent, which is not thread safe.
907 * Added nmem_init and nmem_exit to initialize and release
908 NMEM resources. Function nmem_init should be called once in the
909 initial thread before NMEM/ODR is used. statserv.c and client.c
910 have been changed accordingly. The change was necessary to make
911 NMEM thread safe. The NMEM memory pool is shared amongst threads
912 in a process. Unix-based applications will still work fine without
915 Added NT Services interface for the the Z39.50 (statserv) Server.
916 Refer to the ztest.c source on the usage.
918 Windows 95/NT port using MSVC5.0. Project files are included in the
921 * Defined new 'global' handle for the retrieval (data1) system. The
922 new handled, data1_handle, describes the state of the data1 system.
923 This handle is passed as first argument to virtually all
924 data1 related routines. The functions data1_create and data1_destroy
925 creates and destroys a data1 handle respectively.
927 Added ODR encode stream member to all backend request structures
928 init, search, scan etc. This stream should be used to allocate all
929 memory used for the response when thread safe operation is needed.
931 Changed the comstack utility, cs_addstr, to be thread safe. The
932 returned hostname string returned by the function is now part the
935 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
936 function. The cs_straddr takes a COMSTACK handle as argument, so this
937 function must be used after cs_create and before bind/connect.
938 This function is thread safe.
940 Moved test server to 'ztest' directory - generic server code still
941 in 'server' directory.
943 Made prefix query (pquery.c) utility thread safe.
945 Added new function modifier YAZ_EXPORT to 'export' public DLL
946 functions when using windows (see include/yconfig.h).
948 Added definitions to the OID database (util/oid.c) (RVDM).
950 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
952 Added call to ccl_rpn_delete in client program.
954 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
955 release of RPN structure.
957 Added support for C++, headers uses extern "C" for public definitions.
958 With input from RVDM.
960 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
961 Thanks to Ronald van der Meer (RVDM).
963 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
965 Added support for private extensions to the OID database
966 (oid_setprivateoids()). Thanks to RVDM.
968 Added optional, physical ANY (key replication)
970 Fixed null-reference problem in GRS-1 output filter.
972 Proximity operator added to Prefix Query Format (PQF).
974 In test client command "base" accepts multiple databases.
976 Fixed bug in cs_close stack that caused trouble with WINSOCK.
980 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
982 Smallish bug-fixes in the new encoders/decoders (explain).
984 Bug fixed in DeleteRequest.
986 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
988 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
990 Added SOIF syntax (using private OID for now) to retrieval module and client.
992 Added Update extended service.
994 Added SearchResult-1 additional info structure.
996 Added optional CCL (ISO8777) interpreter as separate module. Available
999 --- 1.2 1996/6/10 (1st anniversary release)
1001 Added Summary record syntax. Lightly tested.
1003 Added OPAC record syntax. Untested.
1005 Added ResourceReport service encoders/decoders. Untested.
1007 Fixed bug in z_Unit - wrong tagging on unitSystem.
1009 Fixed bug in the DiagRecs decoder.
1011 Added options for max PDU size and session timeout to frontend-server.
1013 Added documentation of query-language parsers and other supporting utilities.
1015 [frontend-server] Added Attribute set to the bend_scanrequest API.
1017 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1018 surrogate diagnostics were generated.
1020 [retrieval] Allow multiple local values for attribute.
1022 [retrieval] Allow multiple attributes per element in .abs files. index type.
1024 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1026 --- 1.1pl2 1996/4/10
1028 Minor changes, mostly specific to Zebra's requirements (retrieval)
1032 Repaired bug in frontend server when running multiple listening
1033 endpoints in dynamic mode.
1035 z_External() now won't break if a known, ASN.1 value comes encapsulated
1036 in an octet-string. The value will pass through unmodified in an Odr_oct.
1038 Added a bit of code to the demo client to decode & display
1039 ASN.1-structured records represented in the octet-aligned branch of
1040 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1042 Added z_ext_getentbyref() to the ASN module. Doc updated.
1044 * Completed the SCAN definition in the ASN module. This may break SCAN
1045 code based on older YAZ-versions at compile-time. The fix is easy -
1048 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1049 under the SCAN definition. Remember to initialize this, server-people.
1051 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1052 that this does not extend to ODR and ASN.
1054 Comstack allows insertion of established socket (primarily for
1055 inetd-operation of servers). Doc updated.
1057 Front-end server can now start from the inetd in TCP mode. Doc
1060 --- 1.0pl4 1996/1/24
1064 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1065 the rank and record number.
1067 Adjustments to the frontend server.
1069 Fixed diagnostic BER dumper. It ignored the file argument.
1073 Various changes to retrieval module.
1075 Changed the union discriminators of the protocol files from enums to
1076 ints paired with #defines.
1078 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1081 *Changed operator in the RPN structure to 'roperator', again to avoid a
1084 Fixed problems in Explain decoders/encoders.
1086 --- 1.0pl2 1995/12/6
1088 Memory bug in log module fixed.
1090 --- 1.0pl1 1995/12/5
1092 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1094 Bug in Explain DatabaseInfo module fixed.
1096 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1100 The shift to v1.0 signals that we now consider the *core* functionality
1101 of YAZ reasonably stable (the core being more or less equivalent to
1102 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1103 tested (Explain not at all - though that will happen soonish).
1105 Minor changes to code to support Windows port.
1107 Various minor changes after we're getting to use GRS-1 & co. more.
1109 Added Espec-1 format.
1111 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1112 of the protocol and it cannot be selected when encoding (maps into 'string'
1113 when decoding). Needed to talk to some servers.
1115 Demo client can request simple element set names.
1117 Added Diagnostic Format encoders/decoders.
1119 Added simple Close handling to frontend server (no hooks for resource
1120 reporting yet), and demonstration client.
1122 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1124 --- 1.0b3 1995/08/24
1126 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1127 handled incorrectly when records were requested in the searchResponse. This
1128 will only affect you if you use the frontend-server.
1130 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1131 Test-client will ask for and print GRS1. Ztest will return dummy records
1134 Added Explain encoders/decoders to the service-level API. Untested.
1136 Added Extended Services: Item Order encoders and decoders to the Service-
1137 level API. Untested. We could use a recent copy of the pertinent bits
1138 of the ILL protocol to add those bits.
1140 Added diagnostic format 1 encoders/decoders to the service-level API.
1143 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1144 odr_cons.c, which causes a more correct output.
1146 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1147 was always set to 0 when no records were requested in the searchRequest.
1149 * Added better external-handling. This shouldn't harm old code that
1150 *encodes* externals. It can break code that looks for a
1151 'single-ASN1-type' representation, since those types that are known
1152 are now decoded immediately. Look at the SUTRS sample code in
1153 seshigh.c and client.c. Documentation updated.
1155 Handling of structured records in bend_fetchresponse. Length -1 marks
1156 structured record, type is deduced from format field.
1158 --- 1.0b2 1995/06/27
1159 Fairly quick maintenance release to add SUTRS support.
1161 Fixed handling of SUTRS records in the demonstration client.
1163 * Added format field to the bend_fetchrequest and bend_fetchresponce
1164 structures of the backend API (frontend server). When the record is
1165 returned, the value of the format field is mapped to an OID. The
1166 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1167 of the record. The special value VAL_NONE in the bend_request means
1168 that no specific format was requested by the client. Documentation
1169 updated accordingly. Test server (ztest) will return a fixed dummy
1170 SUTRS record if your client requests SUTRS.
1172 Documentation updated accordingly.
1174 You can now set external libraries and RANLIB support in the top-level
1178 First public release.