1 Possible compatibility problems with earlier versions marked with '*'.
3 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
5 Added option -p <file> to make Generic Frontend Server to write PID file.
7 Added option -D to put Generic Frontend Server in background on its own.
9 Make ZOOM C recognize option "password". If unset, "pass" is used
10 (for backwards compatibility).
12 Fixed a bug in Generic Frontend Server that could make it crash if a
13 client sets characterSetNegotation bit, but didn't pass negotiation stuff
16 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
17 Must be issued before open, in order to be in effect.
19 --- 2.0.9-6 2004/01/12 Debian/Windows
21 Make the SRU server more picky WRT unknown params, etc.
23 Bug fix: ZOOM scan response didn't return displayTerm - when present.
25 New YAZ client command, options, that sets Z39.50 options.
27 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
28 options from a string of tokens (one token for each option bit).
30 Update SRW diagnostic code messages.
32 --- 2.0.9-5 2004/01/07 Debian/Windows
34 Handle user defined stylesheet for SRW/SRU.
36 --- 2.0.9-4 2004/01/06 Debian/Windows
38 Fix bug in decoding of Content-Length.
40 --- 2.0.9-3 2004/01/06 Debian/Windows
42 Fix a bug with decoding of XML packed records.
44 --- 2.0.9-2 2004/01/05 Debian only
46 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
48 Fix bug in SRW/SRU diagnostics decoding.
52 Fixed bug in Generic Frontend Server which could drop records exceeding
53 preferred message size. Reported and fixed by Irina Dijour.
55 Fixed calculation of package size for structured records in Generic
56 Frontend Server. Reported and fixed by Irina Dijour.
58 Fixed namespace for SRW/SRU diagnostics.
60 Fixed SEGV in yaz-client that occured for HTTP connection errors.
64 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
65 this version is incompatible with version 1.0 and older YAZ SRW/SRU
68 CQL changes to reflect recent changes to the specification:
69 * Documentation talks about context sets instead of index sets.
70 * Documentation talks about indexes instead of qualifiers.
71 * The CQL-to-PQF transformer's configuration file now uses
72 "index.set.name = <attributes>" instead of the old form
73 "qualifier.set.name = <attributes>". (Both forms are still
74 understood but the latter is deprecated.)
75 * CQL terms with no explicit index specified are now interpreted as
76 cql.serverChoice instead of srw.serverChoice (which of course
77 behaves exactly the same.)
81 MARC conversion can now generate ISO2709 output in another
82 character set. yaz-marcdump uses this facility if you invoke it
85 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
86 functions from there can be used from C++.
90 Frontend server now transfers memory from decoded packages to stream
93 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
94 references to show up.
96 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
97 the ZOOM Abstract API. The older names for the same options are still
98 also supported for the benefit of old applications.
100 ZOOM-C supports "implementationId" and "implementationVersion" options
101 to go along with "implementationName". These allow the user code to
102 specify identification strings to be sent to servers.
103 Add OID for the new ExtLite attribute set.
105 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
106 as requested/supplid by Ere Maijala <ere@atp.fi>
108 For generic frontend server, reverse the order of
109 "toolkit-supplied / application-supplied" strings sent as implementationId,
110 Name and Version. Also, remove the spaces around the slash. This brings
111 the GFS in line with the behaviour of ZOOM-C on the client side.
113 Add function ZOOM_scanset_display_term.
115 yaz-client shows scan displayTerm if present.
117 Utility yaz-iconv is now installed by default along with the man page
120 Extend configure check for OpenSSL to use pkg-config where available (such
123 Incorporate patch by Morten Bogeskov which allows a Unix file socket
124 server to specify uid/gid/mask for socket using the format
125 unix:[user=uid,][group=gid,][umask=mask,]file=path
126 If file= is omitted the existing format is assumed, e.g.
128 in which case the mask is 0666 (rw for everybody).
130 Major restructure of YAZ source. All source in libyaz is in src directory.
131 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
132 util (utility programs such as ASN.1 compiler, yaz-marcdump).
134 Added man page for utility yaz-marcdump (used to be called marcdump).
135 yaz-marcdump is installed by 'make install'.
137 Fixed a memory leak in Generic Frontend Server that occurred when decoding
138 of incoming package failed.
140 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
142 Change prototype of odr_perror: add const to message string.
144 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
146 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
147 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
148 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
149 DNS lookup. There should not be any compatibility problems with this
150 assuming that blocking=1 or 0 is used.
152 Fix bad reference in UNIX comstack in function cs_addrstr.
154 Fix for compilation on AIX.
156 The generic front-end server (server/seshigh.c) now supports returning
157 Init diagnostics to the client in User-information-field, in
158 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
163 Allow any CQL relation (not just all,any,exact,scr).
165 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
166 that features the same UI.
168 Implemented command update0 in YAZ client which is equivalent to
169 update but uses old of Ext Update ASN.1.
171 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
172 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
173 Previously no OID was used for this info.
175 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
176 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
177 returns 'malformed search term' otherwise.
179 SortResponse member resultCount now set to NULL in sort handler of
182 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
185 Add three new utility functions for translating OIDs between various
186 formats -- symbolic name such as "Usmarc", minus-1-terminated int
187 arrays and dotted strings such as "1.2.840.10003.9.5.1":
188 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
189 char *oid_to_dotstring(const int *oid, char *oidbuf);
190 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
192 Reverted modifications for ES Update definition for z_IU0Update
193 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
194 is back to YAZ 2.0.2.
196 String value attributes for CCL parser.
198 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
199 which their FirstSearch server returns in Init responses, sometimes
200 carrying useful diagnostic information when Init fails. This has the
201 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
202 "z39.50/oclcui.asn", where its definition is somewhat different from
203 what OCLC document on their web-site, as required to interoperate with
206 Support for anonymous authentication in yaz-client. Use the command
209 * Fix the OID of the Index Data-local "admin" Extended Service from
210 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
211 the 1000, which indicates a locally-defined OID, was a mistake.
215 Fix CCL directive @case handling so that it affects string match for
216 both CCL keywords and qualifiers.
218 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
219 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
220 Decoder has been updated with ASN.1 changes as listed in
221 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
222 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
223 z_IUUpdate, remains unchanged.
225 ZOOM_record_get may now return a record in a specific character set.
226 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
227 "from" is the character set of record as returned by target. "to" is
228 the character set to be returned. If omitted, "to" is UTF-8.
230 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
232 New ODR utility, odr_getelement, which returns name of element for
233 which encoding/decoding failed.
235 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
236 in cases where a required element was omitted.
238 Bug fix: some MARC8 sequences were not converted.
240 New ZOOM option "step" which specifies number of records to be
241 retrieved in one chunk. Used in conjunction with "start" and "count".
243 SRW support for yaz-client. Use scheme http: to use it, e.g.
246 yaz-client no longer does (un)intelligent character set conversions
247 by default. Can be enabled with charset and marc_charset commands.
249 xmalloc trace fix for 64-bit systems such as DEC alpha.
251 Solaris 2.6 compile fix.
253 New function, cql_strerror() translates SRW error codes, as returned
254 by cql_transform_error(), into human-readable English strings. Used
255 in yaz-client diagnostics when appropriate.
257 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
258 converts it into a type-1 query which is sent to the server. This
259 makes CQL available for use with all Z-servers, as opposed to the tiny
260 minority that can handle CQL queries themselves.
264 New Debian package layout similar to the Redhat Package layout.
266 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
267 and search result respectively.
271 Redhat package is now several packages: libyaz (runtime libraries),
272 libyaz-devel (development and documentation, and yaz (utility programs).
273 Package spec file by Morten Bøgeskov.
275 New member 'schema' in struct bend_fetch_rr which the name of requested
276 schema (SRW/SRU) for record (or NULL if none was given). The fetch
277 handler MAY set this to reflect the schema of the returned record.
279 New member 'display_term' in struct scan_entry. GFS now sets member entries
280 and allocates scan entries to be filled by user scan handler. In previous
281 version, entries member was allocated by the scan handler. That still works,
282 but the GFS will ignore member display_term - assuming it was NOT set by
283 the handler. The fact that the GFS now allocates the entries both allows
284 for new members and makes a scan handler easier to write.
286 Fix CQL lex buffer overflow.
288 SRW/SRU recordPacking. For SRW default recordPacking is string. For
289 SRU default recordPacking is string.
291 SRU protocol support for frontend server.
293 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
295 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
297 Added scan for the ZOOM shell (zoomsh).
301 * String Identifers for Schemas (Amendment 5).
302 http://lcweb.loc.gov/z3950/agency/amend/am5.html
303 Old definition for schema
304 Odr_oid *schema; /* OPT */
309 Z_InternationalString *uri;
310 #define Z_Schema_oid 1
311 #define Z_Schema_uri 2
314 * resultCount parameter to Sort Response (Amendment 1).
315 http://lcweb.loc.gov/z3950/agency/amend/am1.html
317 Support for SRW 1.0 over HTTP. This is an optional feature and
318 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
321 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
322 on the same port. SRW SearchRetrieveRequests are mapped
323 to bend_init,bend_search,bend_fetch,bend_close.
325 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
327 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
328 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
330 ZOOM connections are SRW based if schem http is used for hostname
331 in connect, e.g. z = ZOOM_connection_new("http://myserver");
332 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
334 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
335 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
336 distance=n, order=true/false, relation=le, prox unit=word. If
337 n is omitted, distance 1 is used.
339 Fixed problem with C compiler include path in wrong order.
341 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
342 on Solaris. Patch from Ko van der Sloot.
344 New MARC decode API. All new functions operate on a yaz_marc_t
345 handle. The most important new functions are: yaz_marc_create,
346 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
347 decode and destroy respectively. Decoder can produce formats
348 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
349 include/yaz/marcdisp.h.
351 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
352 to UTF-8, UCS-32, wchar_t or Latin-1.
354 * Prototypes for yaz_iconv_-functions moved to separate header
355 include/yaz/yaz-iconv.h.
357 Make a few private functions 'static' in unix.c. This prevents
358 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
360 For ZOOM connection, the options targetImplementation{Id,Name,Version}
361 are set when Init Response is received.
363 New function ZOOM_connection_error_x similar to ZOOM_connection_error
364 but returns diagnostic set as well.
366 New function yaz_strerror which is a portable wrapper for
367 strerror/strerror_r/GetLastMessage.
369 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
370 is returned for MARC. If type is "oai", then OAI MARC is returned.
372 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
377 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
379 Fix bad race conditions on SIGTERM and terminate gracefully in
382 Move retrieval (data1) module to Zebra since nobody seems to be
385 Add GRS-1 render for ZOOM using same format as yaz-client.
389 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
391 Fix broken ESpec handling in data1 module.
393 SGML reader parses comments and makes them part of the data1 tree.
395 Added several type casts so that YAZ compiles as C++ code.
397 ZOOM didn't handle PDU encoding failures properly.
399 Added more Bib-1 diagnostics (approved extensions).
401 GNU configure: better check for iconv.
403 More portable use of accept, getpeername. Check for socklen_t. Use
404 int/size_t if socklen_t is not defined.
408 PQF parser rejects bad queries - including those with extra
409 characters in them. PQF parser used to silently ignore that.
410 Cleaner API for PQF added, which allows you to get detailed
411 error information for bad queries (see yaz/pquery.h).
413 Fixed bug in ZOOM_record_get for type "database".
415 Implemented mini iconv library supporting conversions between
416 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
418 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
422 Fixed ZOOM C record cache so that preferredRecordSyntax and
423 elementSetName is used to check for already fetched records.
427 Added three members in bend_initrequest structure to facilitate
428 character set negotiation.
430 Fixed a bug in frontend server that could cause indefinite
431 loops under rare conditions.
433 Revised character set utilities (charneg.h) so that encoding
434 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
436 For PQF, directive @term <type> sets term type for Scan/Search.
437 Here <type> is general, string, numeric, null. The term type
438 is inherited - just like @attr.
440 New call odr_set_charset that sets character set conversion for
441 international-strings on a ODR stream. Prototype is:
442 int odr_set_charset(ODR o, const char *to, const char *from);
443 The InternationalString is still represented as C string in YAZ
444 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
445 won't). On the protocol level, you can use any encoding.
447 Support for UNIX sockets in ZOOM.
449 Solaris recv sometimes returns errno == ENOENT. It is treated as
450 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
452 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
453 both client and server. Code by Morten Bøgeskov.
457 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
458 that they can be used directly from Visual Basic. You must recompile
459 your windows APP if you're using ZOOM.
461 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
462 Commands "lang" and "charset" sets language and character set respectively.
463 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
464 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
466 Attributes from multiple CCL fields may be OR'ed rather than merged
467 using directive "@field or". Fields are still merged by default -
468 equivalent to "@field merge".
470 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
473 Fixed bug in zget for parameter ExtendedServicesResponse.
479 Added PQF feature: '@attr type=value' may be written as '@type=value'.
481 Client displays USR.1:SearchResult-1 (hits per term).
483 Additional Search Info for search in Generic Frontend Server.
485 Fixed CCL parsing of "field=s".
487 WIN32 installer - using the excellent NSIS software from nullsoft.
489 Fixed CCL parsing of "field = - <number>".
491 Added function yaz_marc_decode that decodes MARC for line mode
492 display or XML (similar to that used by JZKit).
494 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
495 Z39.50. But ISO/ILL was, however.
497 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
498 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
500 http://lcweb.loc.gov/z3950/agency/amend/am2.html
501 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
505 New YAZ client features: Command completion and new commands:
506 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
507 Code provided by Jacob Poulsen.
509 New call oid_trav, that visits all registered OIDs via callback.
511 Function ZOOM_record_get now returns const char pointer rather than
512 void pointer. It saves a lot of type casts.
514 For YAZ client, command "auth" now allows you to set authentication
515 in IdPass style. It is enabled when three tokens are given - order
516 is user, group and password.
518 Fix memory leaks in MARC record handling for ZOOM.
520 New option for YAZ client, -k <kilobytes> that sets
521 maximum record size. Similar to -k option for generic frontend
522 server and yaz-ztest.
524 More fixes for scan. Non-zero stepSize handled. OID's fixes.
526 Prefix query parser reports "fail" when bad attribute set is given.
528 Fix in MARC decoder. Proximity logging. Fix for attribute set
529 in scan handler for server. Patches by Shigeru Ishida.
531 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
534 Configure option --with-openssl=<dir> now works when a directory is
535 specified. Patch provided by Morten Bøgeskov.
537 New option for YAZ client, -u <auth>, that sets authentication.
539 ZOOM fix: error information was sometimes "missing", since error
540 was cleared/reset too when it shouldn't.
542 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
546 Scan for ZOOM API. New object ZOOM_scanset. New functions
547 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
548 ZOOM_scanset_destroy.
550 New ZOOM function, ZOOM_connection_last_event, that returns type
551 of last event (such as "receive data", "send data", "apdu received",
554 New ZOOM option, schema, that specifies schema for retrieval.
556 New CCL feature. Qualifiers can be aliases for one or more
557 other qualifiers (if more than one is given, OR is used).
559 ZOOM uses named result sets if target supports it.
561 Two new YAZ client commands: . (dot, which sources a script of YAZ
562 client commands), and ! (to execute shell command.). Implemented
565 Working on Debian packages.
569 YAZ client enables named result sets only if target supports it.
571 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
573 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
574 with key="host" to get same result.
576 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
577 Function Z3950_resultset_record(s) returns references to records
578 "owned" by resultset. To become owner use Z3950_record_clone.
580 Function z_ext_record handles Extended Services. Thanks to
585 CCL Parser fix: ignore token comma when dealing with and-lists.
587 Documentation updates for COMSTACK.
589 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
590 Changed prototype Z3950_records. For some functions, int parameters
591 were changed to size_t.
593 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
596 New MARC decode/display function, marc_display_exl, which properly rejects
597 non-ISO2709 records. YAZ client uses it.
601 Fix bug: local attribute set wasn't set correctly in PQF strings.
605 * Old Z39.50 codecs no longer supported.
607 Added ZOOM C binding. See http://zoom.z3950.org/
609 Renamed states for COMSTACKs to avoid confusion with events.
611 Implemented cs_look and proper cs_rcvconnect.
613 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
615 Configure detects POSIX threads on OpenBSD.
617 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
618 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
620 When error is returned from present handler, non-surrogate diagnostic
621 is returned in present response (and fetch handler is no longer called).
623 * Minor adjustments to pquery parser (PQF). Token characters may be
624 escaped by using backslash (C-style).
626 PQF parser allows string attribute values to be specified. For @attr,
627 non-numeric characters after the equal-sign are treated as strings
628 (e.g. @attr 9=title).
630 CCL trunction character may be defined (@truncation in file)
632 * function zget_ExtendedServicesRequest sets waitAction to
633 waitIfPossible (was wait).
635 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
638 CCL operator names may be set in field definition files (CCL_bibset).
639 See ccl/bib1 for an example.
641 Fixes in ASN.1 compiler for C++ compatibility.
643 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
644 and "op_or" to avoid conflict with C++.
646 Fixed problem with GNU readline detection on Redhat 7.0.
648 Added step-size for Scan backend handler.
650 Fixed bug that made the frontend server crash when no attribute
651 set was specified for scan.
653 Front-end server automatically switches to original working directory
654 when installed as an NT service. Previously -w had to be specified to
657 Added extended attributes for retrieval module (data1), so that data1
658 records carry d1_readXML/SGML attributes. d1_read also supports
659 null-data rules ( <tag/>)
661 On UNIX when POSIX threads are available, a separate library libyazthread
662 is created. Programmers should link with that library and the yaz library
663 when using threads. The reason for the split was that some applications
664 on Linux, such as Apache, doesn't work well when using shared objects that
667 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
668 (or any frontend server) in SSL mode by specifying ssl: followed by
669 address. Only tested on UNIX.
671 Added feature for CCL module. Virtual structure s=al or s=ol generates
672 and-list and or-list respectively instead of phrase search.
676 * Added prefix "yaz_" for the functions log_init.., log_file.. and
677 log_mask_str. This was done to avoid name conflicts with other libraries
678 (such as other PHP extensions).
680 Added raw OID member for preferred record syntax (request_format_raw)
681 and returned record syntax (output_format_raw) for backend fetch method.
683 Config file yaz-config now accepts options so that it returns specific
684 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
686 Shared library support for UNIX using GNU libtool.
688 * Modified backend interface. Request/Response struct's replaced by
689 one read/write C struct. For example bend_fetchrequest and
690 bend_fetchresult have been replaced by single bend_fetch_rr struct.
691 Every handler - even search has to be registered in bend_init
692 handler. This means that the YAZ library no longer refers to
693 external functions and it makes it possible to make the whole
694 thing a single DLL/SO.
696 Added Segment handler for backend server.
698 Added Zmbol/Zebra administrative functions to YAZ client.
700 Threaded frontend server on UNIX (when POSIX Threads are available).
701 Starting the server with option -T enables multi-threading.
705 Added configure option --enable-comp/disable-comp to control use
706 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
707 located in sub directory asn.
709 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
710 in ${exec_prefix}/bin along with the other programs yaz-client and
713 GNU automake used to maintain makefiles.
717 Changed retrieval module so that we can load records with no abstract
718 syntax defined. Tagpaths in these records are fully composed of string
721 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
725 On UNIX, the generated makefile now supports a proper 'make install'.
726 The prefix can be set via GNU configure to set the install location
727 (default is /usr/local).
729 * YAZ programs client and ztest were renamed to yaz-client and
730 yaz-ztest to avoid conflicts when users install YAZ in "standard"
731 locations, such as /usr/bin,/usr/local/bin,etc.
733 * YAZ Header files were moved from include to include/yaz. YAZ Header
734 files are referred to as include <yaz/log.h> rather than <log.h>.
735 The YAZ include path (-I ..) is therefore the same as before. Programmers
736 should update their #include statements or use -Ipath/include/yaz
737 instead. The main motivation for doing this change is that YAZ header files
738 can be installed in "standard" locations /usr/include,/usr/local/include
739 without introducing conflicts, since ALL YAZ header files are stored
740 in subdirectory yaz (under /usr/include for example).
742 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
743 rather than project/workspace files. We switched because project files
744 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
747 Changed name of logging function, logf, to yaz_log, to prevent name
748 clash with some math-log functions. The YAZ header log.h defines logf
749 to yaz_log (#define) so there should be no incompatibilities by this
752 Added bend_start/bend_stop handlers for server. These handler are
753 called on start/stop of server. For windows they are called whenever
754 a service is started/stopped.
756 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
757 a fairly small ASN.1 compiler written in Tcl. The compiler is located
758 in util/yc.tcl. The auto-generated C code structures are, in a few
759 cases, incompatible with the old decoders. There are differences in the
760 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
761 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
762 The preprocessor variable ASN_COMPILED is defined when the compiled
763 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
764 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
765 wish to use the old encoders/decoders you can specify --disable-yc
768 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
769 version so that it supports both new - and old version of DB Update
771 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
772 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
773 change. The name parameter can be set to 0 in which no name is specified
774 for the construction. The macros odr_implicit and odr_explicit sets name
775 parameter to zero for the construction involved. New macros
776 odr_implicit_tag and odr_explicit_tag are similar to the others,
777 except that a name parameter is added. For programmers' that don't use
778 ODR they probably only need to change the call to z_APDU and z_External.
780 Added access control facility by interfacing the TCP wrapper library.
781 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
782 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
783 name of the daemon and enables the access control as specified in
784 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
786 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
787 den Dool <H.M.vdnDool@kub.nl>.
789 Added reference ID parameter to most functions in server API - refer
790 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
792 Changed name of ccl library to libccl.a (was ccl.a).
794 Fixed bug in decoder for Explain (Category TargetInfo).
796 Added support for GNU readline in client. Thanks to Jacob Poulsen
797 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
799 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
800 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
801 IMPLEMENTATION! This change was made to the development version before
802 the ZIG decided to retract the amendment. If any users MUST be
803 compatible with the original Update definition, PLEASE CONTACT US, and
804 we will include a separate definition corresponding to the old Update
805 ES. Note that because of the change to the ASN.1 of the
806 TaskPackageRecordStructure we cannot define a single structure that
807 will support both versions.
809 * Added const modifier to buffer parameter for some ODR/BER encoding
810 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
811 completeWAIS, odr_dumpBER.
813 Fixed bug in client.c which caused a crash when a scanResponse didn't
814 contain positionOfTerm.
816 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
817 * will cause an error in a client if a non-YAZ target sends both a
818 * list of Scan entries and non-surrogate diagnostics.
820 Retrieval module enhancements. Tag sets may be typed in the reference
821 to it. From the .abs-file the "tagset" directive takes a third optional
822 integer type for the tag set referenced. From a .tag-file the "include"
823 directive takes a third optional type as well. The old "type" directive
824 in the tag set itself is still recognized but acts as the default type
827 Backend interface change. Individual Scan terms returned from bend_scan
828 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
829 in include/backend.h.
831 Retrieval module enhancements. Multiple tag sets and attribute sets may
832 be specified in abstract syntax specs. Revised the error/warning for
833 logging messages reported by the retrieval module when reading the
836 Object Identifier system (oid_..) changed. The API is backwards
837 compatible but the oid-routines now allocates new OID's when needed.
838 Raw OID's may be specified in oid_getvalbyname.
840 YAZ now uses GNU configure to generate Makefile(s).
842 * Minor changes in some of the member names of DeleteResultSetRequest and
843 DeleteResultSetResponse. See include/proto.h.
845 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
846 and added member 'languages' in TargetInfo (which was missing).
848 Changed the way attribute sets are handled in the retrieval
849 module. These are now cached, just like the abstract syntaxes
852 Changed YAZ so that it links with compiled ASN.1.
854 Added Explain-schema definitions and mapping routines. The following
855 Explain categories have been implemented: AttributeDetails,
856 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
858 Fixed minor bug in Windows version of Server Library.
860 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
862 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
864 Added EXTERNAL: UNIverse Resource Report (non-standard).
866 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
867 ENUMERATED and SET OF.
869 * Added 'const' to some of the char pointer arguments for the
870 functions, data1_read_node, data1_getelementbytagname,
871 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
874 Fixed bug in data1_insert_taggeddata - the last_child member of
875 parent wasn't initialised.
877 * Changed data1_read_record and data1_read_node so that the supplied
878 "SGML"-buffer is read-only. In particular the resulting data1 - tree
879 doesn't refer to any parts of the "SGML"-buffer.
881 Fixed bug in server library (Windows version of statserv_remove).
883 * Changed code so that it compiles as C++. The type definition
884 of Odr_fun which is a member of Odr_arm was changed. The result is,
885 that an explicit typecast is needed for the fun pointer when
886 using Odr_arm - as in:
887 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
889 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
891 Implemented the new structured date and time definition as approved
892 by the ZIG. Added schemaId element to the specificTag in Espec-1
893 (also approved at the last ZIG). Thanks to RVDM.
895 Added some Object identifiers (RVDM).
897 Changed the Update Extended Service (RVDM).
899 Added command "refid" to client which specifies referenceId for
900 the following requests.
902 Implemented extended service handling for server. See ztest.c
903 for an example as well as backend.h. New handlers are registerd
906 * Changed interface for sort in server.
908 Added new members to statserv_options_block. It allows a server
909 to read options from another source than just the command line. Thanks
910 to Charles Woodfield.
912 * Changed definition of Z_Triple in file prt-grs.h - member boolean
913 renamed to zboolean. Some C++ compilers complained about the name.
915 Minor changes to gils.abs. Added index 's' (sort) on title
916 and date/time-last-modified.
920 Fixed bug in server library regarding inetd mode (-i). This bug
921 was introduced by release 1.4.
925 Added sort facility in client and backend server interface.
927 Fixed problem with dependencies in Makefile(s).
929 Fixed bugs for encoders/decoders of extended services and
932 Implemented sub-tree feature for schemas. Sub-trees are
933 referenced in *.abs-files. See explain.abs for an example
934 of the use of this feature.
936 Modified bib1.att; local attributes for ANY didn't include
937 ANY itself (only affects use of the retrieval module).
939 Fixed bug in plain SGML reader in function data1_read_node:
940 tags with prefix "var" was incorrectly interpreted as variants.
942 Added feature "sub-schemas" to enable references to - and definitions
943 of - group of elements.
945 * Removed member parent from type data1_element (in data1.h).
947 Implemented function odr_nullval() that returns the value of
950 * Removed member num_children from data1_node (in data1.h).
952 Made NT service interface part of the server library. The
953 function statserv_main uses the NT service when required and
954 calls the statserv_start / statserv_close routines.
956 Routine zget_SearchRequest and zget_PresentRequest fills
957 resultSetName/Id member with "default" instead of "Default".
959 Fixed memory leak in server. Request queue member wasn't freed.
961 Fixed nmem_exit so that memory is freed.
965 Revised the CCL parser utility to be thread safe.
967 Added function, oid_ent_to_oid, to replace the function
968 oid_getoidbyent, which is not thread safe.
970 * Added nmem_init and nmem_exit to initialize and release
971 NMEM resources. Function nmem_init should be called once in the
972 initial thread before NMEM/ODR is used. statserv.c and client.c
973 have been changed accordingly. The change was necessary to make
974 NMEM thread safe. The NMEM memory pool is shared amongst threads
975 in a process. Unix-based applications will still work fine without
978 Added NT Services interface for the the Z39.50 (statserv) Server.
979 Refer to the ztest.c source on the usage.
981 Windows 95/NT port using MSVC5.0. Project files are included in the
984 * Defined new 'global' handle for the retrieval (data1) system. The
985 new handled, data1_handle, describes the state of the data1 system.
986 This handle is passed as first argument to virtually all
987 data1 related routines. The functions data1_create and data1_destroy
988 creates and destroys a data1 handle respectively.
990 Added ODR encode stream member to all backend request structures
991 init, search, scan etc. This stream should be used to allocate all
992 memory used for the response when thread safe operation is needed.
994 Changed the comstack utility, cs_addstr, to be thread safe. The
995 returned hostname string returned by the function is now part the
998 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
999 function. The cs_straddr takes a COMSTACK handle as argument, so this
1000 function must be used after cs_create and before bind/connect.
1001 This function is thread safe.
1003 Moved test server to 'ztest' directory - generic server code still
1004 in 'server' directory.
1006 Made prefix query (pquery.c) utility thread safe.
1008 Added new function modifier YAZ_EXPORT to 'export' public DLL
1009 functions when using windows (see include/yconfig.h).
1011 Added definitions to the OID database (util/oid.c) (RVDM).
1013 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1015 Added call to ccl_rpn_delete in client program.
1017 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1018 release of RPN structure.
1020 Added support for C++, headers uses extern "C" for public definitions.
1021 With input from RVDM.
1023 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1024 Thanks to Ronald van der Meer (RVDM).
1026 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1028 Added support for private extensions to the OID database
1029 (oid_setprivateoids()). Thanks to RVDM.
1031 Added optional, physical ANY (key replication)
1033 Fixed null-reference problem in GRS-1 output filter.
1035 Proximity operator added to Prefix Query Format (PQF).
1037 In test client command "base" accepts multiple databases.
1039 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1043 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1045 Smallish bug-fixes in the new encoders/decoders (explain).
1047 Bug fixed in DeleteRequest.
1049 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1051 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1053 Added SOIF syntax (using private OID for now) to retrieval module and client.
1055 Added Update extended service.
1057 Added SearchResult-1 additional info structure.
1059 Added optional CCL (ISO8777) interpreter as separate module. Available
1062 --- 1.2 1996/6/10 (1st anniversary release)
1064 Added Summary record syntax. Lightly tested.
1066 Added OPAC record syntax. Untested.
1068 Added ResourceReport service encoders/decoders. Untested.
1070 Fixed bug in z_Unit - wrong tagging on unitSystem.
1072 Fixed bug in the DiagRecs decoder.
1074 Added options for max PDU size and session timeout to frontend-server.
1076 Added documentation of query-language parsers and other supporting utilities.
1078 [frontend-server] Added Attribute set to the bend_scanrequest API.
1080 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1081 surrogate diagnostics were generated.
1083 [retrieval] Allow multiple local values for attribute.
1085 [retrieval] Allow multiple attributes per element in .abs files. index type.
1087 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1089 --- 1.1pl2 1996/4/10
1091 Minor changes, mostly specific to Zebra's requirements (retrieval)
1095 Repaired bug in frontend server when running multiple listening
1096 endpoints in dynamic mode.
1098 z_External() now won't break if a known, ASN.1 value comes encapsulated
1099 in an octet-string. The value will pass through unmodified in an Odr_oct.
1101 Added a bit of code to the demo client to decode & display
1102 ASN.1-structured records represented in the octet-aligned branch of
1103 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1105 Added z_ext_getentbyref() to the ASN module. Doc updated.
1107 * Completed the SCAN definition in the ASN module. This may break SCAN
1108 code based on older YAZ-versions at compile-time. The fix is easy -
1111 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1112 under the SCAN definition. Remember to initialize this, server-people.
1114 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1115 that this does not extend to ODR and ASN.
1117 Comstack allows insertion of established socket (primarily for
1118 inetd-operation of servers). Doc updated.
1120 Front-end server can now start from the inetd in TCP mode. Doc
1123 --- 1.0pl4 1996/1/24
1127 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1128 the rank and record number.
1130 Adjustments to the frontend server.
1132 Fixed diagnostic BER dumper. It ignored the file argument.
1136 Various changes to retrieval module.
1138 Changed the union discriminators of the protocol files from enums to
1139 ints paired with #defines.
1141 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1144 *Changed operator in the RPN structure to 'roperator', again to avoid a
1147 Fixed problems in Explain decoders/encoders.
1149 --- 1.0pl2 1995/12/6
1151 Memory bug in log module fixed.
1153 --- 1.0pl1 1995/12/5
1155 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1157 Bug in Explain DatabaseInfo module fixed.
1159 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1163 The shift to v1.0 signals that we now consider the *core* functionality
1164 of YAZ reasonably stable (the core being more or less equivalent to
1165 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1166 tested (Explain not at all - though that will happen soonish).
1168 Minor changes to code to support Windows port.
1170 Various minor changes after we're getting to use GRS-1 & co. more.
1172 Added Espec-1 format.
1174 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1175 of the protocol and it cannot be selected when encoding (maps into 'string'
1176 when decoding). Needed to talk to some servers.
1178 Demo client can request simple element set names.
1180 Added Diagnostic Format encoders/decoders.
1182 Added simple Close handling to frontend server (no hooks for resource
1183 reporting yet), and demonstration client.
1185 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1187 --- 1.0b3 1995/08/24
1189 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1190 handled incorrectly when records were requested in the searchResponse. This
1191 will only affect you if you use the frontend-server.
1193 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1194 Test-client will ask for and print GRS1. Ztest will return dummy records
1197 Added Explain encoders/decoders to the service-level API. Untested.
1199 Added Extended Services: Item Order encoders and decoders to the Service-
1200 level API. Untested. We could use a recent copy of the pertinent bits
1201 of the ILL protocol to add those bits.
1203 Added diagnostic format 1 encoders/decoders to the service-level API.
1206 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1207 odr_cons.c, which causes a more correct output.
1209 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1210 was always set to 0 when no records were requested in the searchRequest.
1212 * Added better external-handling. This shouldn't harm old code that
1213 *encodes* externals. It can break code that looks for a
1214 'single-ASN1-type' representation, since those types that are known
1215 are now decoded immediately. Look at the SUTRS sample code in
1216 seshigh.c and client.c. Documentation updated.
1218 Handling of structured records in bend_fetchresponse. Length -1 marks
1219 structured record, type is deduced from format field.
1221 --- 1.0b2 1995/06/27
1222 Fairly quick maintenance release to add SUTRS support.
1224 Fixed handling of SUTRS records in the demonstration client.
1226 * Added format field to the bend_fetchrequest and bend_fetchresponce
1227 structures of the backend API (frontend server). When the record is
1228 returned, the value of the format field is mapped to an OID. The
1229 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1230 of the record. The special value VAL_NONE in the bend_request means
1231 that no specific format was requested by the client. Documentation
1232 updated accordingly. Test server (ztest) will return a fixed dummy
1233 SUTRS record if your client requests SUTRS.
1235 Documentation updated accordingly.
1237 You can now set external libraries and RANLIB support in the top-level
1241 First public release.