1 Possible compatibility problems with earlier versions marked with '*'.
5 Incorporate patch by Morten Bogeskov which allows a Unix file socket
6 server to specify uid/gid/mask for socket using the format
7 unix:[user=uid,][group=gid,][umask=mask,]file=path
8 If file= is omitted the existing format is assumed, e.g.
10 in which case the mask is 0666 (rw for everybody).
12 Major restructure of YAZ source. All source in libyaz is in src directory.
13 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
14 util (utility programs such as ASN.1 compiler, yaz-marcdump).
16 Added man page for utility yaz-marcdump (used to be called marcdump).
17 yaz-marcdump is installed by 'make install'.
19 Fixed a memory leak in Generic Frontend Server that occurred when decoding
20 of incoming package failed.
22 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
24 Change prototype of odr_perror: add const to message string.
26 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
28 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
29 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
30 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
31 DNS lookup. There should not be any compatibility problems with this
32 assuming that blocking=1 or 0 is used.
34 Fix bad reference in UNIX comstack in function cs_addrstr.
36 Fix for compilation on AIX.
38 The generic front-end server (server/seshigh.c) now supports returning
39 Init diagnostics to the client in User-information-field, in
40 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
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.
50 Allow any CQL relation (not just all,any,exact,scr).
52 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
53 that features the same UI.
55 Implemented command update0 in YAZ client which is equivalent to
56 update but uses old of Ext Update ASN.1.
58 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
59 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
60 Previously no OID was used for this info.
62 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
63 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
64 returns 'malformed search term' otherwise.
66 SortResponse member resultCount now set to NULL in sort handler of
69 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
72 Add three new utility functions for translating OIDs between various
73 formats -- symbolic name such as "Usmarc", minus-1-terminated int
74 arrays and dotted strings such as "1.2.840.10003.9.5.1":
75 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
76 char *oid_to_dotstring(const int *oid, char *oidbuf);
77 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
79 Reverted modifications for ES Update definition for z_IU0Update
80 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
83 String value attributes for CCL parser.
85 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
86 which their FirstSearch server returns in Init responses, sometimes
87 carrying useful diagnostic information when Init fails. This has the
88 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
89 "z39.50/oclcui.asn", where its definition is somewhat different from
90 what OCLC document on their web-site, as required to interoperate with
93 Support for anonymous authentication in yaz-client. Use the command
96 * Fix the OID of the Index Data-local "admin" Extended Service from
97 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
98 the 1000, which indicates a locally-defined OID, was a mistake.
102 Fix CCL directive @case handling so that it affects string match for
103 both CCL keywords and qualifiers.
105 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
106 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
107 Decoder has been updated with ASN.1 changes as listed in
108 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
109 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
110 z_IUUpdate, remains unchanged.
112 ZOOM_record_get may now return a record in a specific character set.
113 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
114 "from" is the character set of record as returned by target. "to" is
115 the character set to be returned. If omitted, "to" is UTF-8.
117 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
119 New ODR utility, odr_getelement, which returns name of element for
120 which encoding/decoding failed.
122 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
123 in cases where a required element was omitted.
125 Bug fix: some MARC8 sequences were not converted.
127 New ZOOM option "step" which specifies number of records to be
128 retrieved in one chunk. Used in conjunction with "start" and "count".
130 SRW support for yaz-client. Use scheme http: to use it, e.g.
133 yaz-client no longer does (un)intelligent character set conversions
134 by default. Can be enabled with charset and marc_charset commands.
136 xmalloc trace fix for 64-bit systems such as DEC alpha.
138 Solaris 2.6 compile fix.
140 New function, cql_strerror() translates SRW error codes, as returned
141 by cql_transform_error(), into human-readable English strings. Used
142 in yaz-client diagnostics when appropriate.
144 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
145 converts it into a type-1 query which is sent to the server. This
146 makes CQL available for use with all Z-servers, as opposed to the tiny
147 minority that can handle CQL queries themselves.
151 New Debian package layout similar to the Redhat Package layout.
153 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
154 and search result respectively.
158 Redhat package is now several packages: libyaz (runtime libraries),
159 libyaz-devel (development and documentation, and yaz (utility programs).
160 Package spec file by Morten Bøgeskov.
162 New member 'schema' in struct bend_fetch_rr which the name of requested
163 schema (SRW/SRU) for record (or NULL if none was given). The fetch
164 handler MAY set this to reflect the schema of the returned record.
166 New member 'display_term' in struct scan_entry. GFS now sets member entries
167 and allocates scan entries to be filled by user scan handler. In previous
168 version, entries member was allocated by the scan handler. That still works,
169 but the GFS will ignore member display_term - assuming it was NOT set by
170 the handler. The fact that the GFS now allocates the entries both allows
171 for new members and makes a scan handler easier to write.
173 Fix CQL lex buffer overflow.
175 SRW/SRU recordPacking. For SRW default recordPacking is string. For
176 SRU default recordPacking is string.
178 SRU protocol support for frontend server.
180 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
182 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
184 Added scan for the ZOOM shell (zoomsh).
188 * String Identifers for Schemas (Amendment 5).
189 http://lcweb.loc.gov/z3950/agency/amend/am5.html
190 Old definition for schema
191 Odr_oid *schema; /* OPT */
196 Z_InternationalString *uri;
197 #define Z_Schema_oid 1
198 #define Z_Schema_uri 2
201 * resultCount parameter to Sort Response (Amendment 1).
202 http://lcweb.loc.gov/z3950/agency/amend/am1.html
204 Support for SRW 1.0 over HTTP. This is an optional feature and
205 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
208 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
209 on the same port. SRW SearchRetrieveRequests are mapped
210 to bend_init,bend_search,bend_fetch,bend_close.
212 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
214 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
215 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
217 ZOOM connections are SRW based if schem http is used for hostname
218 in connect, e.g. z = ZOOM_connection_new("http://myserver");
219 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
221 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
222 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
223 distance=n, order=true/false, relation=le, prox unit=word. If
224 n is omitted, distance 1 is used.
226 Fixed problem with C compiler include path in wrong order.
228 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
229 on Solaris. Patch from Ko van der Sloot.
231 New MARC decode API. All new functions operate on a yaz_marc_t
232 handle. The most important new functions are: yaz_marc_create,
233 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
234 decode and destroy respectively. Decoder can produce formats
235 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
236 include/yaz/marcdisp.h.
238 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
239 to UTF-8, UCS-32, wchar_t or Latin-1.
241 * Prototypes for yaz_iconv_-functions moved to separate header
242 include/yaz/yaz-iconv.h.
244 Make a few private functions 'static' in unix.c. This prevents
245 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
247 For ZOOM connection, the options targetImplementation{Id,Name,Version}
248 are set when Init Response is received.
250 New function ZOOM_connection_error_x similar to ZOOM_connection_error
251 but returns diagnostic set as well.
253 New function yaz_strerror which is a portable wrapper for
254 strerror/strerror_r/GetLastMessage.
256 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
257 is returned for MARC. If type is "oai", then OAI MARC is returned.
259 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
264 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
266 Fix bad race conditions on SIGTERM and terminate gracefully in
269 Move retrieval (data1) module to Zebra since nobody seems to be
272 Add GRS-1 render for ZOOM using same format as yaz-client.
276 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
278 Fix broken ESpec handling in data1 module.
280 SGML reader parses comments and makes them part of the data1 tree.
282 Added several type casts so that YAZ compiles as C++ code.
284 ZOOM didn't handle PDU encoding failures properly.
286 Added more Bib-1 diagnostics (approved extensions).
288 GNU configure: better check for iconv.
290 More portable use of accept, getpeername. Check for socklen_t. Use
291 int/size_t if socklen_t is not defined.
295 PQF parser rejects bad queries - including those with extra
296 characters in them. PQF parser used to silently ignore that.
297 Cleaner API for PQF added, which allows you to get detailed
298 error information for bad queries (see yaz/pquery.h).
300 Fixed bug in ZOOM_record_get for type "database".
302 Implemented mini iconv library supporting conversions between
303 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
305 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
309 Fixed ZOOM C record cache so that preferredRecordSyntax and
310 elementSetName is used to check for already fetched records.
314 Added three members in bend_initrequest structure to facilitate
315 character set negotiation.
317 Fixed a bug in frontend server that could cause indefinite
318 loops under rare conditions.
320 Revised character set utilities (charneg.h) so that encoding
321 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
323 For PQF, directive @term <type> sets term type for Scan/Search.
324 Here <type> is general, string, numeric, null. The term type
325 is inherited - just like @attr.
327 New call odr_set_charset that sets character set conversion for
328 international-strings on a ODR stream. Prototype is:
329 int odr_set_charset(ODR o, const char *to, const char *from);
330 The InternationalString is still represented as C string in YAZ
331 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
332 won't). On the protocol level, you can use any encoding.
334 Support for UNIX sockets in ZOOM.
336 Solaris recv sometimes returns errno == ENOENT. It is treated as
337 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
339 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
340 both client and server. Code by Morten Bøgeskov.
344 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
345 that they can be used directly from Visual Basic. You must recompile
346 your windows APP if you're using ZOOM.
348 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
349 Commands "lang" and "charset" sets language and character set respectively.
350 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
351 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
353 Attributes from multiple CCL fields may be OR'ed rather than merged
354 using directive "@field or". Fields are still merged by default -
355 equivalent to "@field merge".
357 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
360 Fixed bug in zget for parameter ExtendedServicesResponse.
366 Added PQF feature: '@attr type=value' may be written as '@type=value'.
368 Client displays USR.1:SearchResult-1 (hits per term).
370 Additional Search Info for search in Generic Frontend Server.
372 Fixed CCL parsing of "field=s".
374 WIN32 installer - using the excellent NSIS software from nullsoft.
376 Fixed CCL parsing of "field = - <number>".
378 Added function yaz_marc_decode that decodes MARC for line mode
379 display or XML (similar to that used by JZKit).
381 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
382 Z39.50. But ISO/ILL was, however.
384 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
385 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
387 http://lcweb.loc.gov/z3950/agency/amend/am2.html
388 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
392 New YAZ client features: Command completion and new commands:
393 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
394 Code provided by Jacob Poulsen.
396 New call oid_trav, that visits all registered OIDs via callback.
398 Function ZOOM_record_get now returns const char pointer rather than
399 void pointer. It saves a lot of type casts.
401 For YAZ client, command "auth" now allows you to set authentication
402 in IdPass style. It is enabled when three tokens are given - order
403 is user, group and password.
405 Fix memory leaks in MARC record handling for ZOOM.
407 New option for YAZ client, -k <kilobytes> that sets
408 maximum record size. Similar to -k option for generic frontend
409 server and yaz-ztest.
411 More fixes for scan. Non-zero stepSize handled. OID's fixes.
413 Prefix query parser reports "fail" when bad attribute set is given.
415 Fix in MARC decoder. Proximity logging. Fix for attribute set
416 in scan handler for server. Patches by Shigeru Ishida.
418 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
421 Configure option --with-openssl=<dir> now works when a directory is
422 specified. Patch provided by Morten Bøgeskov.
424 New option for YAZ client, -u <auth>, that sets authentication.
426 ZOOM fix: error information was sometimes "missing", since error
427 was cleared/reset too when it shouldn't.
429 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
433 Scan for ZOOM API. New object ZOOM_scanset. New functions
434 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
435 ZOOM_scanset_destroy.
437 New ZOOM function, ZOOM_connection_last_event, that returns type
438 of last event (such as "receive data", "send data", "apdu received",
441 New ZOOM option, schema, that specifies schema for retrieval.
443 New CCL feature. Qualifiers can be aliases for one or more
444 other qualifiers (if more than one is given, OR is used).
446 ZOOM uses named result sets if target supports it.
448 Two new YAZ client commands: . (dot, which sources a script of YAZ
449 client commands), and ! (to execute shell command.). Implemented
452 Working on Debian packages.
456 YAZ client enables named result sets only if target supports it.
458 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
460 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
461 with key="host" to get same result.
463 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
464 Function Z3950_resultset_record(s) returns references to records
465 "owned" by resultset. To become owner use Z3950_record_clone.
467 Function z_ext_record handles Extended Services. Thanks to
472 CCL Parser fix: ignore token comma when dealing with and-lists.
474 Documentation updates for COMSTACK.
476 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
477 Changed prototype Z3950_records. For some functions, int parameters
478 were changed to size_t.
480 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
483 New MARC decode/display function, marc_display_exl, which properly rejects
484 non-ISO2709 records. YAZ client uses it.
488 Fix bug: local attribute set wasn't set correctly in PQF strings.
492 * Old Z39.50 codecs no longer supported.
494 Added ZOOM C binding. See http://zoom.z3950.org/
496 Renamed states for COMSTACKs to avoid confusion with events.
498 Implemented cs_look and proper cs_rcvconnect.
500 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
502 Configure detects POSIX threads on OpenBSD.
504 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
505 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
507 When error is returned from present handler, non-surrogate diagnostic
508 is returned in present response (and fetch handler is no longer called).
510 * Minor adjustments to pquery parser (PQF). Token characters may be
511 escaped by using backslash (C-style).
513 PQF parser allows string attribute values to be specified. For @attr,
514 non-numeric characters after the equal-sign are treated as strings
515 (e.g. @attr 9=title).
517 CCL trunction character may be defined (@truncation in file)
519 * function zget_ExtendedServicesRequest sets waitAction to
520 waitIfPossible (was wait).
522 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
525 CCL operator names may be set in field definition files (CCL_bibset).
526 See ccl/bib1 for an example.
528 Fixes in ASN.1 compiler for C++ compatibility.
530 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
531 and "op_or" to avoid conflict with C++.
533 Fixed problem with GNU readline detection on Redhat 7.0.
535 Added step-size for Scan backend handler.
537 Fixed bug that made the frontend server crash when no attribute
538 set was specified for scan.
540 Front-end server automatically switches to original working directory
541 when installed as an NT service. Previously -w had to be specified to
544 Added extended attributes for retrieval module (data1), so that data1
545 records carry d1_readXML/SGML attributes. d1_read also supports
546 null-data rules ( <tag/>)
548 On UNIX when POSIX threads are available, a separate library libyazthread
549 is created. Programmers should link with that library and the yaz library
550 when using threads. The reason for the split was that some applications
551 on Linux, such as Apache, doesn't work well when using shared objects that
554 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
555 (or any frontend server) in SSL mode by specifying ssl: followed by
556 address. Only tested on UNIX.
558 Added feature for CCL module. Virtual structure s=al or s=ol generates
559 and-list and or-list respectively instead of phrase search.
563 * Added prefix "yaz_" for the functions log_init.., log_file.. and
564 log_mask_str. This was done to avoid name conflicts with other libraries
565 (such as other PHP extensions).
567 Added raw OID member for preferred record syntax (request_format_raw)
568 and returned record syntax (output_format_raw) for backend fetch method.
570 Config file yaz-config now accepts options so that it returns specific
571 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
573 Shared library support for UNIX using GNU libtool.
575 * Modified backend interface. Request/Response struct's replaced by
576 one read/write C struct. For example bend_fetchrequest and
577 bend_fetchresult have been replaced by single bend_fetch_rr struct.
578 Every handler - even search has to be registered in bend_init
579 handler. This means that the YAZ library no longer refers to
580 external functions and it makes it possible to make the whole
581 thing a single DLL/SO.
583 Added Segment handler for backend server.
585 Added Zmbol/Zebra administrative functions to YAZ client.
587 Threaded frontend server on UNIX (when POSIX Threads are available).
588 Starting the server with option -T enables multi-threading.
592 Added configure option --enable-comp/disable-comp to control use
593 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
594 located in sub directory asn.
596 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
597 in ${exec_prefix}/bin along with the other programs yaz-client and
600 GNU automake used to maintain makefiles.
604 Changed retrieval module so that we can load records with no abstract
605 syntax defined. Tagpaths in these records are fully composed of string
608 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
612 On UNIX, the generated makefile now supports a proper 'make install'.
613 The prefix can be set via GNU configure to set the install location
614 (default is /usr/local).
616 * YAZ programs client and ztest were renamed to yaz-client and
617 yaz-ztest to avoid conflicts when users install YAZ in "standard"
618 locations, such as /usr/bin,/usr/local/bin,etc.
620 * YAZ Header files were moved from include to include/yaz. YAZ Header
621 files are referred to as include <yaz/log.h> rather than <log.h>.
622 The YAZ include path (-I ..) is therefore the same as before. Programmers
623 should update their #include statements or use -Ipath/include/yaz
624 instead. The main motivation for doing this change is that YAZ header files
625 can be installed in "standard" locations /usr/include,/usr/local/include
626 without introducing conflicts, since ALL YAZ header files are stored
627 in subdirectory yaz (under /usr/include for example).
629 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
630 rather than project/workspace files. We switched because project files
631 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
634 Changed name of logging function, logf, to yaz_log, to prevent name
635 clash with some math-log functions. The YAZ header log.h defines logf
636 to yaz_log (#define) so there should be no incompatibilities by this
639 Added bend_start/bend_stop handlers for server. These handler are
640 called on start/stop of server. For windows they are called whenever
641 a service is started/stopped.
643 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
644 a fairly small ASN.1 compiler written in Tcl. The compiler is located
645 in util/yc.tcl. The auto-generated C code structures are, in a few
646 cases, incompatible with the old decoders. There are differences in the
647 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
648 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
649 The preprocessor variable ASN_COMPILED is defined when the compiled
650 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
651 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
652 wish to use the old encoders/decoders you can specify --disable-yc
655 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
656 version so that it supports both new - and old version of DB Update
658 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
659 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
660 change. The name parameter can be set to 0 in which no name is specified
661 for the construction. The macros odr_implicit and odr_explicit sets name
662 parameter to zero for the construction involved. New macros
663 odr_implicit_tag and odr_explicit_tag are similar to the others,
664 except that a name parameter is added. For programmers' that don't use
665 ODR they probably only need to change the call to z_APDU and z_External.
667 Added access control facility by interfacing the TCP wrapper library.
668 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
669 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
670 name of the daemon and enables the access control as specified in
671 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
673 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
674 den Dool <H.M.vdnDool@kub.nl>.
676 Added reference ID parameter to most functions in server API - refer
677 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
679 Changed name of ccl library to libccl.a (was ccl.a).
681 Fixed bug in decoder for Explain (Category TargetInfo).
683 Added support for GNU readline in client. Thanks to Jacob Poulsen
684 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
686 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
687 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
688 IMPLEMENTATION! This change was made to the development version before
689 the ZIG decided to retract the amendment. If any users MUST be
690 compatible with the original Update definition, PLEASE CONTACT US, and
691 we will include a separate definition corresponding to the old Update
692 ES. Note that because of the change to the ASN.1 of the
693 TaskPackageRecordStructure we cannot define a single structure that
694 will support both versions.
696 * Added const modifier to buffer parameter for some ODR/BER encoding
697 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
698 completeWAIS, odr_dumpBER.
700 Fixed bug in client.c which caused a crash when a scanResponse didn't
701 contain positionOfTerm.
703 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
704 * will cause an error in a client if a non-YAZ target sends both a
705 * list of Scan entries and non-surrogate diagnostics.
707 Retrieval module enhancements. Tag sets may be typed in the reference
708 to it. From the .abs-file the "tagset" directive takes a third optional
709 integer type for the tag set referenced. From a .tag-file the "include"
710 directive takes a third optional type as well. The old "type" directive
711 in the tag set itself is still recognized but acts as the default type
714 Backend interface change. Individual Scan terms returned from bend_scan
715 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
716 in include/backend.h.
718 Retrieval module enhancements. Multiple tag sets and attribute sets may
719 be specified in abstract syntax specs. Revised the error/warning for
720 logging messages reported by the retrieval module when reading the
723 Object Identifier system (oid_..) changed. The API is backwards
724 compatible but the oid-routines now allocates new OID's when needed.
725 Raw OID's may be specified in oid_getvalbyname.
727 YAZ now uses GNU configure to generate Makefile(s).
729 * Minor changes in some of the member names of DeleteResultSetRequest and
730 DeleteResultSetResponse. See include/proto.h.
732 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
733 and added member 'languages' in TargetInfo (which was missing).
735 Changed the way attribute sets are handled in the retrieval
736 module. These are now cached, just like the abstract syntaxes
739 Changed YAZ so that it links with compiled ASN.1.
741 Added Explain-schema definitions and mapping routines. The following
742 Explain categories have been implemented: AttributeDetails,
743 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
745 Fixed minor bug in Windows version of Server Library.
747 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
749 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
751 Added EXTERNAL: UNIverse Resource Report (non-standard).
753 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
754 ENUMERATED and SET OF.
756 * Added 'const' to some of the char pointer arguments for the
757 functions, data1_read_node, data1_getelementbytagname,
758 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
761 Fixed bug in data1_insert_taggeddata - the last_child member of
762 parent wasn't initialised.
764 * Changed data1_read_record and data1_read_node so that the supplied
765 "SGML"-buffer is read-only. In particular the resulting data1 - tree
766 doesn't refer to any parts of the "SGML"-buffer.
768 Fixed bug in server library (Windows version of statserv_remove).
770 * Changed code so that it compiles as C++. The type definition
771 of Odr_fun which is a member of Odr_arm was changed. The result is,
772 that an explicit typecast is needed for the fun pointer when
773 using Odr_arm - as in:
774 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
776 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
778 Implemented the new structured date and time definition as approved
779 by the ZIG. Added schemaId element to the specificTag in Espec-1
780 (also approved at the last ZIG). Thanks to RVDM.
782 Added some Object identifiers (RVDM).
784 Changed the Update Extended Service (RVDM).
786 Added command "refid" to client which specifies referenceId for
787 the following requests.
789 Implemented extended service handling for server. See ztest.c
790 for an example as well as backend.h. New handlers are registerd
793 * Changed interface for sort in server.
795 Added new members to statserv_options_block. It allows a server
796 to read options from another source than just the command line. Thanks
797 to Charles Woodfield.
799 * Changed definition of Z_Triple in file prt-grs.h - member boolean
800 renamed to zboolean. Some C++ compilers complained about the name.
802 Minor changes to gils.abs. Added index 's' (sort) on title
803 and date/time-last-modified.
807 Fixed bug in server library regarding inetd mode (-i). This bug
808 was introduced by release 1.4.
812 Added sort facility in client and backend server interface.
814 Fixed problem with dependencies in Makefile(s).
816 Fixed bugs for encoders/decoders of extended services and
819 Implemented sub-tree feature for schemas. Sub-trees are
820 referenced in *.abs-files. See explain.abs for an example
821 of the use of this feature.
823 Modified bib1.att; local attributes for ANY didn't include
824 ANY itself (only affects use of the retrieval module).
826 Fixed bug in plain SGML reader in function data1_read_node:
827 tags with prefix "var" was incorrectly interpreted as variants.
829 Added feature "sub-schemas" to enable references to - and definitions
830 of - group of elements.
832 * Removed member parent from type data1_element (in data1.h).
834 Implemented function odr_nullval() that returns the value of
837 * Removed member num_children from data1_node (in data1.h).
839 Made NT service interface part of the server library. The
840 function statserv_main uses the NT service when required and
841 calls the statserv_start / statserv_close routines.
843 Routine zget_SearchRequest and zget_PresentRequest fills
844 resultSetName/Id member with "default" instead of "Default".
846 Fixed memory leak in server. Request queue member wasn't freed.
848 Fixed nmem_exit so that memory is freed.
852 Revised the CCL parser utility to be thread safe.
854 Added function, oid_ent_to_oid, to replace the function
855 oid_getoidbyent, which is not thread safe.
857 * Added nmem_init and nmem_exit to initialize and release
858 NMEM resources. Function nmem_init should be called once in the
859 initial thread before NMEM/ODR is used. statserv.c and client.c
860 have been changed accordingly. The change was necessary to make
861 NMEM thread safe. The NMEM memory pool is shared amongst threads
862 in a process. Unix-based applications will still work fine without
865 Added NT Services interface for the the Z39.50 (statserv) Server.
866 Refer to the ztest.c source on the usage.
868 Windows 95/NT port using MSVC5.0. Project files are included in the
871 * Defined new 'global' handle for the retrieval (data1) system. The
872 new handled, data1_handle, describes the state of the data1 system.
873 This handle is passed as first argument to virtually all
874 data1 related routines. The functions data1_create and data1_destroy
875 creates and destroys a data1 handle respectively.
877 Added ODR encode stream member to all backend request structures
878 init, search, scan etc. This stream should be used to allocate all
879 memory used for the response when thread safe operation is needed.
881 Changed the comstack utility, cs_addstr, to be thread safe. The
882 returned hostname string returned by the function is now part the
885 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
886 function. The cs_straddr takes a COMSTACK handle as argument, so this
887 function must be used after cs_create and before bind/connect.
888 This function is thread safe.
890 Moved test server to 'ztest' directory - generic server code still
891 in 'server' directory.
893 Made prefix query (pquery.c) utility thread safe.
895 Added new function modifier YAZ_EXPORT to 'export' public DLL
896 functions when using windows (see include/yconfig.h).
898 Added definitions to the OID database (util/oid.c) (RVDM).
900 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
902 Added call to ccl_rpn_delete in client program.
904 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
905 release of RPN structure.
907 Added support for C++, headers uses extern "C" for public definitions.
908 With input from RVDM.
910 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
911 Thanks to Ronald van der Meer (RVDM).
913 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
915 Added support for private extensions to the OID database
916 (oid_setprivateoids()). Thanks to RVDM.
918 Added optional, physical ANY (key replication)
920 Fixed null-reference problem in GRS-1 output filter.
922 Proximity operator added to Prefix Query Format (PQF).
924 In test client command "base" accepts multiple databases.
926 Fixed bug in cs_close stack that caused trouble with WINSOCK.
930 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
932 Smallish bug-fixes in the new encoders/decoders (explain).
934 Bug fixed in DeleteRequest.
936 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
938 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
940 Added SOIF syntax (using private OID for now) to retrieval module and client.
942 Added Update extended service.
944 Added SearchResult-1 additional info structure.
946 Added optional CCL (ISO8777) interpreter as separate module. Available
949 --- 1.2 1996/6/10 (1st anniversary release)
951 Added Summary record syntax. Lightly tested.
953 Added OPAC record syntax. Untested.
955 Added ResourceReport service encoders/decoders. Untested.
957 Fixed bug in z_Unit - wrong tagging on unitSystem.
959 Fixed bug in the DiagRecs decoder.
961 Added options for max PDU size and session timeout to frontend-server.
963 Added documentation of query-language parsers and other supporting utilities.
965 [frontend-server] Added Attribute set to the bend_scanrequest API.
967 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
968 surrogate diagnostics were generated.
970 [retrieval] Allow multiple local values for attribute.
972 [retrieval] Allow multiple attributes per element in .abs files. index type.
974 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
978 Minor changes, mostly specific to Zebra's requirements (retrieval)
982 Repaired bug in frontend server when running multiple listening
983 endpoints in dynamic mode.
985 z_External() now won't break if a known, ASN.1 value comes encapsulated
986 in an octet-string. The value will pass through unmodified in an Odr_oct.
988 Added a bit of code to the demo client to decode & display
989 ASN.1-structured records represented in the octet-aligned branch of
990 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
992 Added z_ext_getentbyref() to the ASN module. Doc updated.
994 * Completed the SCAN definition in the ASN module. This may break SCAN
995 code based on older YAZ-versions at compile-time. The fix is easy -
998 * Added 'displayTerm' and OtherInformation to the TermInfo structure
999 under the SCAN definition. Remember to initialize this, server-people.
1001 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1002 that this does not extend to ODR and ASN.
1004 Comstack allows insertion of established socket (primarily for
1005 inetd-operation of servers). Doc updated.
1007 Front-end server can now start from the inetd in TCP mode. Doc
1010 --- 1.0pl4 1996/1/24
1014 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1015 the rank and record number.
1017 Adjustments to the frontend server.
1019 Fixed diagnostic BER dumper. It ignored the file argument.
1023 Various changes to retrieval module.
1025 Changed the union discriminators of the protocol files from enums to
1026 ints paired with #defines.
1028 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1031 *Changed operator in the RPN structure to 'roperator', again to avoid a
1034 Fixed problems in Explain decoders/encoders.
1036 --- 1.0pl2 1995/12/6
1038 Memory bug in log module fixed.
1040 --- 1.0pl1 1995/12/5
1042 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1044 Bug in Explain DatabaseInfo module fixed.
1046 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1050 The shift to v1.0 signals that we now consider the *core* functionality
1051 of YAZ reasonably stable (the core being more or less equivalent to
1052 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1053 tested (Explain not at all - though that will happen soonish).
1055 Minor changes to code to support Windows port.
1057 Various minor changes after we're getting to use GRS-1 & co. more.
1059 Added Espec-1 format.
1061 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1062 of the protocol and it cannot be selected when encoding (maps into 'string'
1063 when decoding). Needed to talk to some servers.
1065 Demo client can request simple element set names.
1067 Added Diagnostic Format encoders/decoders.
1069 Added simple Close handling to frontend server (no hooks for resource
1070 reporting yet), and demonstration client.
1072 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1074 --- 1.0b3 1995/08/24
1076 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1077 handled incorrectly when records were requested in the searchResponse. This
1078 will only affect you if you use the frontend-server.
1080 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1081 Test-client will ask for and print GRS1. Ztest will return dummy records
1084 Added Explain encoders/decoders to the service-level API. Untested.
1086 Added Extended Services: Item Order encoders and decoders to the Service-
1087 level API. Untested. We could use a recent copy of the pertinent bits
1088 of the ILL protocol to add those bits.
1090 Added diagnostic format 1 encoders/decoders to the service-level API.
1093 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1094 odr_cons.c, which causes a more correct output.
1096 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1097 was always set to 0 when no records were requested in the searchRequest.
1099 * Added better external-handling. This shouldn't harm old code that
1100 *encodes* externals. It can break code that looks for a
1101 'single-ASN1-type' representation, since those types that are known
1102 are now decoded immediately. Look at the SUTRS sample code in
1103 seshigh.c and client.c. Documentation updated.
1105 Handling of structured records in bend_fetchresponse. Length -1 marks
1106 structured record, type is deduced from format field.
1108 --- 1.0b2 1995/06/27
1109 Fairly quick maintenance release to add SUTRS support.
1111 Fixed handling of SUTRS records in the demonstration client.
1113 * Added format field to the bend_fetchrequest and bend_fetchresponce
1114 structures of the backend API (frontend server). When the record is
1115 returned, the value of the format field is mapped to an OID. The
1116 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1117 of the record. The special value VAL_NONE in the bend_request means
1118 that no specific format was requested by the client. Documentation
1119 updated accordingly. Test server (ztest) will return a fixed dummy
1120 SUTRS record if your client requests SUTRS.
1122 Documentation updated accordingly.
1124 You can now set external libraries and RANLIB support in the top-level
1128 First public release.