1 Possible compatibility problems with earlier versions marked with '*'.
3 Use default namespace for SRW diagnostic elements.
7 Implement ZOOM_resultset_cache_reset which resets record cache.
9 Implement ZOOM_resultset_sort which sorts a result set.
11 Implement chunked HTTP transfer.
13 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
17 Added member 'schema' to bend_explain_rr structure so that backend
18 can specify explain record identifier. Defaults to Zeerex 2.0.
20 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
24 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
27 Added init command for yaz-client which sends "extra" init request.
29 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
30 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
32 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
34 Make ZOOM error code for "invalid query".
36 Fixed compilation for SSL which wasn't properly enabled for all platforms.
40 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
43 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
45 Added option -p <file> to make Generic Frontend Server to write PID file.
47 Added option -D to put Generic Frontend Server in background on its own.
49 Make ZOOM C recognize option "password". If unset, "pass" is used
50 (for backwards compatibility).
52 Fixed a bug in Generic Frontend Server that could make it crash if a
53 client sets characterSetNegotation bit, but didn't pass negotiation stuff
56 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
57 Must be issued before open, in order to be in effect.
59 --- 2.0.9-6 2004/01/12 Debian/Windows
61 Make the SRU server more picky WRT unknown params, etc.
63 Bug fix: ZOOM scan response didn't return displayTerm - when present.
65 New YAZ client command, options, that sets Z39.50 options.
67 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
68 options from a string of tokens (one token for each option bit).
70 Update SRW diagnostic code messages.
72 --- 2.0.9-5 2004/01/07 Debian/Windows
74 Handle user defined stylesheet for SRW/SRU.
76 --- 2.0.9-4 2004/01/06 Debian/Windows
78 Fix bug in decoding of Content-Length.
80 --- 2.0.9-3 2004/01/06 Debian/Windows
82 Fix a bug with decoding of XML packed records.
84 --- 2.0.9-2 2004/01/05 Debian only
86 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
88 Fix bug in SRW/SRU diagnostics decoding.
92 Fixed bug in Generic Frontend Server which could drop records exceeding
93 preferred message size. Reported and fixed by Irina Dijour.
95 Fixed calculation of package size for structured records in Generic
96 Frontend Server. Reported and fixed by Irina Dijour.
98 Fixed namespace for SRW/SRU diagnostics.
100 Fixed SEGV in yaz-client that occured for HTTP connection errors.
104 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
105 this version is incompatible with version 1.0 and older YAZ SRW/SRU
108 CQL changes to reflect recent changes to the specification:
109 * Documentation talks about context sets instead of index sets.
110 * Documentation talks about indexes instead of qualifiers.
111 * The CQL-to-PQF transformer's configuration file now uses
112 "index.set.name = <attributes>" instead of the old form
113 "qualifier.set.name = <attributes>". (Both forms are still
114 understood but the latter is deprecated.)
115 * CQL terms with no explicit index specified are now interpreted as
116 cql.serverChoice instead of srw.serverChoice (which of course
117 behaves exactly the same.)
121 MARC conversion can now generate ISO2709 output in another
122 character set. yaz-marcdump uses this facility if you invoke it
125 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
126 functions from there can be used from C++.
130 Frontend server now transfers memory from decoded packages to stream
133 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
134 references to show up.
136 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
137 the ZOOM Abstract API. The older names for the same options are still
138 also supported for the benefit of old applications.
140 ZOOM-C supports "implementationId" and "implementationVersion" options
141 to go along with "implementationName". These allow the user code to
142 specify identification strings to be sent to servers.
143 Add OID for the new ExtLite attribute set.
145 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
146 as requested/supplid by Ere Maijala <ere@atp.fi>
148 For generic frontend server, reverse the order of
149 "toolkit-supplied / application-supplied" strings sent as implementationId,
150 Name and Version. Also, remove the spaces around the slash. This brings
151 the GFS in line with the behaviour of ZOOM-C on the client side.
153 Add function ZOOM_scanset_display_term.
155 yaz-client shows scan displayTerm if present.
157 Utility yaz-iconv is now installed by default along with the man page
160 Extend configure check for OpenSSL to use pkg-config where available (such
163 Incorporate patch by Morten Bogeskov which allows a Unix file socket
164 server to specify uid/gid/mask for socket using the format
165 unix:[user=uid,][group=gid,][umask=mask,]file=path
166 If file= is omitted the existing format is assumed, e.g.
168 in which case the mask is 0666 (rw for everybody).
170 Major restructure of YAZ source. All source in libyaz is in src directory.
171 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
172 util (utility programs such as ASN.1 compiler, yaz-marcdump).
174 Added man page for utility yaz-marcdump (used to be called marcdump).
175 yaz-marcdump is installed by 'make install'.
177 Fixed a memory leak in Generic Frontend Server that occurred when decoding
178 of incoming package failed.
180 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
182 Change prototype of odr_perror: add const to message string.
184 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
186 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
187 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
188 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
189 DNS lookup. There should not be any compatibility problems with this
190 assuming that blocking=1 or 0 is used.
192 Fix bad reference in UNIX comstack in function cs_addrstr.
194 Fix for compilation on AIX.
196 The generic front-end server (server/seshigh.c) now supports returning
197 Init diagnostics to the client in User-information-field, in
198 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
203 Allow any CQL relation (not just all,any,exact,scr).
205 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
206 that features the same UI.
208 Implemented command update0 in YAZ client which is equivalent to
209 update but uses old of Ext Update ASN.1.
211 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
212 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
213 Previously no OID was used for this info.
215 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
216 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
217 returns 'malformed search term' otherwise.
219 SortResponse member resultCount now set to NULL in sort handler of
222 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
225 Add three new utility functions for translating OIDs between various
226 formats -- symbolic name such as "Usmarc", minus-1-terminated int
227 arrays and dotted strings such as "1.2.840.10003.9.5.1":
228 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
229 char *oid_to_dotstring(const int *oid, char *oidbuf);
230 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
232 Reverted modifications for ES Update definition for z_IU0Update
233 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
234 is back to YAZ 2.0.2.
236 String value attributes for CCL parser.
238 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
239 which their FirstSearch server returns in Init responses, sometimes
240 carrying useful diagnostic information when Init fails. This has the
241 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
242 "z39.50/oclcui.asn", where its definition is somewhat different from
243 what OCLC document on their web-site, as required to interoperate with
246 Support for anonymous authentication in yaz-client. Use the command
249 * Fix the OID of the Index Data-local "admin" Extended Service from
250 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
251 the 1000, which indicates a locally-defined OID, was a mistake.
255 Fix CCL directive @case handling so that it affects string match for
256 both CCL keywords and qualifiers.
258 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
259 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
260 Decoder has been updated with ASN.1 changes as listed in
261 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
262 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
263 z_IUUpdate, remains unchanged.
265 ZOOM_record_get may now return a record in a specific character set.
266 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
267 "from" is the character set of record as returned by target. "to" is
268 the character set to be returned. If omitted, "to" is UTF-8.
270 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
272 New ODR utility, odr_getelement, which returns name of element for
273 which encoding/decoding failed.
275 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
276 in cases where a required element was omitted.
278 Bug fix: some MARC8 sequences were not converted.
280 New ZOOM option "step" which specifies number of records to be
281 retrieved in one chunk. Used in conjunction with "start" and "count".
283 SRW support for yaz-client. Use scheme http: to use it, e.g.
286 yaz-client no longer does (un)intelligent character set conversions
287 by default. Can be enabled with charset and marc_charset commands.
289 xmalloc trace fix for 64-bit systems such as DEC alpha.
291 Solaris 2.6 compile fix.
293 New function, cql_strerror() translates SRW error codes, as returned
294 by cql_transform_error(), into human-readable English strings. Used
295 in yaz-client diagnostics when appropriate.
297 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
298 converts it into a type-1 query which is sent to the server. This
299 makes CQL available for use with all Z-servers, as opposed to the tiny
300 minority that can handle CQL queries themselves.
304 New Debian package layout similar to the Redhat Package layout.
306 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
307 and search result respectively.
311 Redhat package is now several packages: libyaz (runtime libraries),
312 libyaz-devel (development and documentation, and yaz (utility programs).
313 Package spec file by Morten Bøgeskov.
315 New member 'schema' in struct bend_fetch_rr which the name of requested
316 schema (SRW/SRU) for record (or NULL if none was given). The fetch
317 handler MAY set this to reflect the schema of the returned record.
319 New member 'display_term' in struct scan_entry. GFS now sets member entries
320 and allocates scan entries to be filled by user scan handler. In previous
321 version, entries member was allocated by the scan handler. That still works,
322 but the GFS will ignore member display_term - assuming it was NOT set by
323 the handler. The fact that the GFS now allocates the entries both allows
324 for new members and makes a scan handler easier to write.
326 Fix CQL lex buffer overflow.
328 SRW/SRU recordPacking. For SRW default recordPacking is string. For
329 SRU default recordPacking is string.
331 SRU protocol support for frontend server.
333 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
335 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
337 Added scan for the ZOOM shell (zoomsh).
341 * String Identifers for Schemas (Amendment 5).
342 http://lcweb.loc.gov/z3950/agency/amend/am5.html
343 Old definition for schema
344 Odr_oid *schema; /* OPT */
349 Z_InternationalString *uri;
350 #define Z_Schema_oid 1
351 #define Z_Schema_uri 2
354 * resultCount parameter to Sort Response (Amendment 1).
355 http://lcweb.loc.gov/z3950/agency/amend/am1.html
357 Support for SRW 1.0 over HTTP. This is an optional feature and
358 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
361 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
362 on the same port. SRW SearchRetrieveRequests are mapped
363 to bend_init,bend_search,bend_fetch,bend_close.
365 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
367 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
368 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
370 ZOOM connections are SRW based if schem http is used for hostname
371 in connect, e.g. z = ZOOM_connection_new("http://myserver");
372 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
374 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
375 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
376 distance=n, order=true/false, relation=le, prox unit=word. If
377 n is omitted, distance 1 is used.
379 Fixed problem with C compiler include path in wrong order.
381 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
382 on Solaris. Patch from Ko van der Sloot.
384 New MARC decode API. All new functions operate on a yaz_marc_t
385 handle. The most important new functions are: yaz_marc_create,
386 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
387 decode and destroy respectively. Decoder can produce formats
388 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
389 include/yaz/marcdisp.h.
391 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
392 to UTF-8, UCS-32, wchar_t or Latin-1.
394 * Prototypes for yaz_iconv_-functions moved to separate header
395 include/yaz/yaz-iconv.h.
397 Make a few private functions 'static' in unix.c. This prevents
398 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
400 For ZOOM connection, the options targetImplementation{Id,Name,Version}
401 are set when Init Response is received.
403 New function ZOOM_connection_error_x similar to ZOOM_connection_error
404 but returns diagnostic set as well.
406 New function yaz_strerror which is a portable wrapper for
407 strerror/strerror_r/GetLastMessage.
409 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
410 is returned for MARC. If type is "oai", then OAI MARC is returned.
412 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
417 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
419 Fix bad race conditions on SIGTERM and terminate gracefully in
422 Move retrieval (data1) module to Zebra since nobody seems to be
425 Add GRS-1 render for ZOOM using same format as yaz-client.
429 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
431 Fix broken ESpec handling in data1 module.
433 SGML reader parses comments and makes them part of the data1 tree.
435 Added several type casts so that YAZ compiles as C++ code.
437 ZOOM didn't handle PDU encoding failures properly.
439 Added more Bib-1 diagnostics (approved extensions).
441 GNU configure: better check for iconv.
443 More portable use of accept, getpeername. Check for socklen_t. Use
444 int/size_t if socklen_t is not defined.
448 PQF parser rejects bad queries - including those with extra
449 characters in them. PQF parser used to silently ignore that.
450 Cleaner API for PQF added, which allows you to get detailed
451 error information for bad queries (see yaz/pquery.h).
453 Fixed bug in ZOOM_record_get for type "database".
455 Implemented mini iconv library supporting conversions between
456 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
458 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
462 Fixed ZOOM C record cache so that preferredRecordSyntax and
463 elementSetName is used to check for already fetched records.
467 Added three members in bend_initrequest structure to facilitate
468 character set negotiation.
470 Fixed a bug in frontend server that could cause indefinite
471 loops under rare conditions.
473 Revised character set utilities (charneg.h) so that encoding
474 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
476 For PQF, directive @term <type> sets term type for Scan/Search.
477 Here <type> is general, string, numeric, null. The term type
478 is inherited - just like @attr.
480 New call odr_set_charset that sets character set conversion for
481 international-strings on a ODR stream. Prototype is:
482 int odr_set_charset(ODR o, const char *to, const char *from);
483 The InternationalString is still represented as C string in YAZ
484 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
485 won't). On the protocol level, you can use any encoding.
487 Support for UNIX sockets in ZOOM.
489 Solaris recv sometimes returns errno == ENOENT. It is treated as
490 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
492 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
493 both client and server. Code by Morten Bøgeskov.
497 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
498 that they can be used directly from Visual Basic. You must recompile
499 your windows APP if you're using ZOOM.
501 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
502 Commands "lang" and "charset" sets language and character set respectively.
503 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
504 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
506 Attributes from multiple CCL fields may be OR'ed rather than merged
507 using directive "@field or". Fields are still merged by default -
508 equivalent to "@field merge".
510 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
513 Fixed bug in zget for parameter ExtendedServicesResponse.
519 Added PQF feature: '@attr type=value' may be written as '@type=value'.
521 Client displays USR.1:SearchResult-1 (hits per term).
523 Additional Search Info for search in Generic Frontend Server.
525 Fixed CCL parsing of "field=s".
527 WIN32 installer - using the excellent NSIS software from nullsoft.
529 Fixed CCL parsing of "field = - <number>".
531 Added function yaz_marc_decode that decodes MARC for line mode
532 display or XML (similar to that used by JZKit).
534 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
535 Z39.50. But ISO/ILL was, however.
537 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
538 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
540 http://lcweb.loc.gov/z3950/agency/amend/am2.html
541 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
545 New YAZ client features: Command completion and new commands:
546 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
547 Code provided by Jacob Poulsen.
549 New call oid_trav, that visits all registered OIDs via callback.
551 Function ZOOM_record_get now returns const char pointer rather than
552 void pointer. It saves a lot of type casts.
554 For YAZ client, command "auth" now allows you to set authentication
555 in IdPass style. It is enabled when three tokens are given - order
556 is user, group and password.
558 Fix memory leaks in MARC record handling for ZOOM.
560 New option for YAZ client, -k <kilobytes> that sets
561 maximum record size. Similar to -k option for generic frontend
562 server and yaz-ztest.
564 More fixes for scan. Non-zero stepSize handled. OID's fixes.
566 Prefix query parser reports "fail" when bad attribute set is given.
568 Fix in MARC decoder. Proximity logging. Fix for attribute set
569 in scan handler for server. Patches by Shigeru Ishida.
571 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
574 Configure option --with-openssl=<dir> now works when a directory is
575 specified. Patch provided by Morten Bøgeskov.
577 New option for YAZ client, -u <auth>, that sets authentication.
579 ZOOM fix: error information was sometimes "missing", since error
580 was cleared/reset too when it shouldn't.
582 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
586 Scan for ZOOM API. New object ZOOM_scanset. New functions
587 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
588 ZOOM_scanset_destroy.
590 New ZOOM function, ZOOM_connection_last_event, that returns type
591 of last event (such as "receive data", "send data", "apdu received",
594 New ZOOM option, schema, that specifies schema for retrieval.
596 New CCL feature. Qualifiers can be aliases for one or more
597 other qualifiers (if more than one is given, OR is used).
599 ZOOM uses named result sets if target supports it.
601 Two new YAZ client commands: . (dot, which sources a script of YAZ
602 client commands), and ! (to execute shell command.). Implemented
605 Working on Debian packages.
609 YAZ client enables named result sets only if target supports it.
611 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
613 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
614 with key="host" to get same result.
616 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
617 Function Z3950_resultset_record(s) returns references to records
618 "owned" by resultset. To become owner use Z3950_record_clone.
620 Function z_ext_record handles Extended Services. Thanks to
625 CCL Parser fix: ignore token comma when dealing with and-lists.
627 Documentation updates for COMSTACK.
629 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
630 Changed prototype Z3950_records. For some functions, int parameters
631 were changed to size_t.
633 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
636 New MARC decode/display function, marc_display_exl, which properly rejects
637 non-ISO2709 records. YAZ client uses it.
641 Fix bug: local attribute set wasn't set correctly in PQF strings.
645 * Old Z39.50 codecs no longer supported.
647 Added ZOOM C binding. See http://zoom.z3950.org/
649 Renamed states for COMSTACKs to avoid confusion with events.
651 Implemented cs_look and proper cs_rcvconnect.
653 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
655 Configure detects POSIX threads on OpenBSD.
657 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
658 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
660 When error is returned from present handler, non-surrogate diagnostic
661 is returned in present response (and fetch handler is no longer called).
663 * Minor adjustments to pquery parser (PQF). Token characters may be
664 escaped by using backslash (C-style).
666 PQF parser allows string attribute values to be specified. For @attr,
667 non-numeric characters after the equal-sign are treated as strings
668 (e.g. @attr 9=title).
670 CCL trunction character may be defined (@truncation in file)
672 * function zget_ExtendedServicesRequest sets waitAction to
673 waitIfPossible (was wait).
675 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
678 CCL operator names may be set in field definition files (CCL_bibset).
679 See ccl/bib1 for an example.
681 Fixes in ASN.1 compiler for C++ compatibility.
683 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
684 and "op_or" to avoid conflict with C++.
686 Fixed problem with GNU readline detection on Redhat 7.0.
688 Added step-size for Scan backend handler.
690 Fixed bug that made the frontend server crash when no attribute
691 set was specified for scan.
693 Front-end server automatically switches to original working directory
694 when installed as an NT service. Previously -w had to be specified to
697 Added extended attributes for retrieval module (data1), so that data1
698 records carry d1_readXML/SGML attributes. d1_read also supports
699 null-data rules ( <tag/>)
701 On UNIX when POSIX threads are available, a separate library libyazthread
702 is created. Programmers should link with that library and the yaz library
703 when using threads. The reason for the split was that some applications
704 on Linux, such as Apache, doesn't work well when using shared objects that
707 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
708 (or any frontend server) in SSL mode by specifying ssl: followed by
709 address. Only tested on UNIX.
711 Added feature for CCL module. Virtual structure s=al or s=ol generates
712 and-list and or-list respectively instead of phrase search.
716 * Added prefix "yaz_" for the functions log_init.., log_file.. and
717 log_mask_str. This was done to avoid name conflicts with other libraries
718 (such as other PHP extensions).
720 Added raw OID member for preferred record syntax (request_format_raw)
721 and returned record syntax (output_format_raw) for backend fetch method.
723 Config file yaz-config now accepts options so that it returns specific
724 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
726 Shared library support for UNIX using GNU libtool.
728 * Modified backend interface. Request/Response struct's replaced by
729 one read/write C struct. For example bend_fetchrequest and
730 bend_fetchresult have been replaced by single bend_fetch_rr struct.
731 Every handler - even search has to be registered in bend_init
732 handler. This means that the YAZ library no longer refers to
733 external functions and it makes it possible to make the whole
734 thing a single DLL/SO.
736 Added Segment handler for backend server.
738 Added Zmbol/Zebra administrative functions to YAZ client.
740 Threaded frontend server on UNIX (when POSIX Threads are available).
741 Starting the server with option -T enables multi-threading.
745 Added configure option --enable-comp/disable-comp to control use
746 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
747 located in sub directory asn.
749 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
750 in ${exec_prefix}/bin along with the other programs yaz-client and
753 GNU automake used to maintain makefiles.
757 Changed retrieval module so that we can load records with no abstract
758 syntax defined. Tagpaths in these records are fully composed of string
761 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
765 On UNIX, the generated makefile now supports a proper 'make install'.
766 The prefix can be set via GNU configure to set the install location
767 (default is /usr/local).
769 * YAZ programs client and ztest were renamed to yaz-client and
770 yaz-ztest to avoid conflicts when users install YAZ in "standard"
771 locations, such as /usr/bin,/usr/local/bin,etc.
773 * YAZ Header files were moved from include to include/yaz. YAZ Header
774 files are referred to as include <yaz/log.h> rather than <log.h>.
775 The YAZ include path (-I ..) is therefore the same as before. Programmers
776 should update their #include statements or use -Ipath/include/yaz
777 instead. The main motivation for doing this change is that YAZ header files
778 can be installed in "standard" locations /usr/include,/usr/local/include
779 without introducing conflicts, since ALL YAZ header files are stored
780 in subdirectory yaz (under /usr/include for example).
782 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
783 rather than project/workspace files. We switched because project files
784 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
787 Changed name of logging function, logf, to yaz_log, to prevent name
788 clash with some math-log functions. The YAZ header log.h defines logf
789 to yaz_log (#define) so there should be no incompatibilities by this
792 Added bend_start/bend_stop handlers for server. These handler are
793 called on start/stop of server. For windows they are called whenever
794 a service is started/stopped.
796 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
797 a fairly small ASN.1 compiler written in Tcl. The compiler is located
798 in util/yc.tcl. The auto-generated C code structures are, in a few
799 cases, incompatible with the old decoders. There are differences in the
800 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
801 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
802 The preprocessor variable ASN_COMPILED is defined when the compiled
803 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
804 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
805 wish to use the old encoders/decoders you can specify --disable-yc
808 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
809 version so that it supports both new - and old version of DB Update
811 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
812 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
813 change. The name parameter can be set to 0 in which no name is specified
814 for the construction. The macros odr_implicit and odr_explicit sets name
815 parameter to zero for the construction involved. New macros
816 odr_implicit_tag and odr_explicit_tag are similar to the others,
817 except that a name parameter is added. For programmers' that don't use
818 ODR they probably only need to change the call to z_APDU and z_External.
820 Added access control facility by interfacing the TCP wrapper library.
821 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
822 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
823 name of the daemon and enables the access control as specified in
824 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
826 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
827 den Dool <H.M.vdnDool@kub.nl>.
829 Added reference ID parameter to most functions in server API - refer
830 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
832 Changed name of ccl library to libccl.a (was ccl.a).
834 Fixed bug in decoder for Explain (Category TargetInfo).
836 Added support for GNU readline in client. Thanks to Jacob Poulsen
837 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
839 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
840 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
841 IMPLEMENTATION! This change was made to the development version before
842 the ZIG decided to retract the amendment. If any users MUST be
843 compatible with the original Update definition, PLEASE CONTACT US, and
844 we will include a separate definition corresponding to the old Update
845 ES. Note that because of the change to the ASN.1 of the
846 TaskPackageRecordStructure we cannot define a single structure that
847 will support both versions.
849 * Added const modifier to buffer parameter for some ODR/BER encoding
850 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
851 completeWAIS, odr_dumpBER.
853 Fixed bug in client.c which caused a crash when a scanResponse didn't
854 contain positionOfTerm.
856 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
857 * will cause an error in a client if a non-YAZ target sends both a
858 * list of Scan entries and non-surrogate diagnostics.
860 Retrieval module enhancements. Tag sets may be typed in the reference
861 to it. From the .abs-file the "tagset" directive takes a third optional
862 integer type for the tag set referenced. From a .tag-file the "include"
863 directive takes a third optional type as well. The old "type" directive
864 in the tag set itself is still recognized but acts as the default type
867 Backend interface change. Individual Scan terms returned from bend_scan
868 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
869 in include/backend.h.
871 Retrieval module enhancements. Multiple tag sets and attribute sets may
872 be specified in abstract syntax specs. Revised the error/warning for
873 logging messages reported by the retrieval module when reading the
876 Object Identifier system (oid_..) changed. The API is backwards
877 compatible but the oid-routines now allocates new OID's when needed.
878 Raw OID's may be specified in oid_getvalbyname.
880 YAZ now uses GNU configure to generate Makefile(s).
882 * Minor changes in some of the member names of DeleteResultSetRequest and
883 DeleteResultSetResponse. See include/proto.h.
885 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
886 and added member 'languages' in TargetInfo (which was missing).
888 Changed the way attribute sets are handled in the retrieval
889 module. These are now cached, just like the abstract syntaxes
892 Changed YAZ so that it links with compiled ASN.1.
894 Added Explain-schema definitions and mapping routines. The following
895 Explain categories have been implemented: AttributeDetails,
896 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
898 Fixed minor bug in Windows version of Server Library.
900 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
902 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
904 Added EXTERNAL: UNIverse Resource Report (non-standard).
906 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
907 ENUMERATED and SET OF.
909 * Added 'const' to some of the char pointer arguments for the
910 functions, data1_read_node, data1_getelementbytagname,
911 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
914 Fixed bug in data1_insert_taggeddata - the last_child member of
915 parent wasn't initialised.
917 * Changed data1_read_record and data1_read_node so that the supplied
918 "SGML"-buffer is read-only. In particular the resulting data1 - tree
919 doesn't refer to any parts of the "SGML"-buffer.
921 Fixed bug in server library (Windows version of statserv_remove).
923 * Changed code so that it compiles as C++. The type definition
924 of Odr_fun which is a member of Odr_arm was changed. The result is,
925 that an explicit typecast is needed for the fun pointer when
926 using Odr_arm - as in:
927 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
929 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
931 Implemented the new structured date and time definition as approved
932 by the ZIG. Added schemaId element to the specificTag in Espec-1
933 (also approved at the last ZIG). Thanks to RVDM.
935 Added some Object identifiers (RVDM).
937 Changed the Update Extended Service (RVDM).
939 Added command "refid" to client which specifies referenceId for
940 the following requests.
942 Implemented extended service handling for server. See ztest.c
943 for an example as well as backend.h. New handlers are registerd
946 * Changed interface for sort in server.
948 Added new members to statserv_options_block. It allows a server
949 to read options from another source than just the command line. Thanks
950 to Charles Woodfield.
952 * Changed definition of Z_Triple in file prt-grs.h - member boolean
953 renamed to zboolean. Some C++ compilers complained about the name.
955 Minor changes to gils.abs. Added index 's' (sort) on title
956 and date/time-last-modified.
960 Fixed bug in server library regarding inetd mode (-i). This bug
961 was introduced by release 1.4.
965 Added sort facility in client and backend server interface.
967 Fixed problem with dependencies in Makefile(s).
969 Fixed bugs for encoders/decoders of extended services and
972 Implemented sub-tree feature for schemas. Sub-trees are
973 referenced in *.abs-files. See explain.abs for an example
974 of the use of this feature.
976 Modified bib1.att; local attributes for ANY didn't include
977 ANY itself (only affects use of the retrieval module).
979 Fixed bug in plain SGML reader in function data1_read_node:
980 tags with prefix "var" was incorrectly interpreted as variants.
982 Added feature "sub-schemas" to enable references to - and definitions
983 of - group of elements.
985 * Removed member parent from type data1_element (in data1.h).
987 Implemented function odr_nullval() that returns the value of
990 * Removed member num_children from data1_node (in data1.h).
992 Made NT service interface part of the server library. The
993 function statserv_main uses the NT service when required and
994 calls the statserv_start / statserv_close routines.
996 Routine zget_SearchRequest and zget_PresentRequest fills
997 resultSetName/Id member with "default" instead of "Default".
999 Fixed memory leak in server. Request queue member wasn't freed.
1001 Fixed nmem_exit so that memory is freed.
1005 Revised the CCL parser utility to be thread safe.
1007 Added function, oid_ent_to_oid, to replace the function
1008 oid_getoidbyent, which is not thread safe.
1010 * Added nmem_init and nmem_exit to initialize and release
1011 NMEM resources. Function nmem_init should be called once in the
1012 initial thread before NMEM/ODR is used. statserv.c and client.c
1013 have been changed accordingly. The change was necessary to make
1014 NMEM thread safe. The NMEM memory pool is shared amongst threads
1015 in a process. Unix-based applications will still work fine without
1018 Added NT Services interface for the the Z39.50 (statserv) Server.
1019 Refer to the ztest.c source on the usage.
1021 Windows 95/NT port using MSVC5.0. Project files are included in the
1024 * Defined new 'global' handle for the retrieval (data1) system. The
1025 new handled, data1_handle, describes the state of the data1 system.
1026 This handle is passed as first argument to virtually all
1027 data1 related routines. The functions data1_create and data1_destroy
1028 creates and destroys a data1 handle respectively.
1030 Added ODR encode stream member to all backend request structures
1031 init, search, scan etc. This stream should be used to allocate all
1032 memory used for the response when thread safe operation is needed.
1034 Changed the comstack utility, cs_addstr, to be thread safe. The
1035 returned hostname string returned by the function is now part the
1038 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1039 function. The cs_straddr takes a COMSTACK handle as argument, so this
1040 function must be used after cs_create and before bind/connect.
1041 This function is thread safe.
1043 Moved test server to 'ztest' directory - generic server code still
1044 in 'server' directory.
1046 Made prefix query (pquery.c) utility thread safe.
1048 Added new function modifier YAZ_EXPORT to 'export' public DLL
1049 functions when using windows (see include/yconfig.h).
1051 Added definitions to the OID database (util/oid.c) (RVDM).
1053 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1055 Added call to ccl_rpn_delete in client program.
1057 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1058 release of RPN structure.
1060 Added support for C++, headers uses extern "C" for public definitions.
1061 With input from RVDM.
1063 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1064 Thanks to Ronald van der Meer (RVDM).
1066 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1068 Added support for private extensions to the OID database
1069 (oid_setprivateoids()). Thanks to RVDM.
1071 Added optional, physical ANY (key replication)
1073 Fixed null-reference problem in GRS-1 output filter.
1075 Proximity operator added to Prefix Query Format (PQF).
1077 In test client command "base" accepts multiple databases.
1079 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1083 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1085 Smallish bug-fixes in the new encoders/decoders (explain).
1087 Bug fixed in DeleteRequest.
1089 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1091 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1093 Added SOIF syntax (using private OID for now) to retrieval module and client.
1095 Added Update extended service.
1097 Added SearchResult-1 additional info structure.
1099 Added optional CCL (ISO8777) interpreter as separate module. Available
1102 --- 1.2 1996/6/10 (1st anniversary release)
1104 Added Summary record syntax. Lightly tested.
1106 Added OPAC record syntax. Untested.
1108 Added ResourceReport service encoders/decoders. Untested.
1110 Fixed bug in z_Unit - wrong tagging on unitSystem.
1112 Fixed bug in the DiagRecs decoder.
1114 Added options for max PDU size and session timeout to frontend-server.
1116 Added documentation of query-language parsers and other supporting utilities.
1118 [frontend-server] Added Attribute set to the bend_scanrequest API.
1120 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1121 surrogate diagnostics were generated.
1123 [retrieval] Allow multiple local values for attribute.
1125 [retrieval] Allow multiple attributes per element in .abs files. index type.
1127 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1129 --- 1.1pl2 1996/4/10
1131 Minor changes, mostly specific to Zebra's requirements (retrieval)
1135 Repaired bug in frontend server when running multiple listening
1136 endpoints in dynamic mode.
1138 z_External() now won't break if a known, ASN.1 value comes encapsulated
1139 in an octet-string. The value will pass through unmodified in an Odr_oct.
1141 Added a bit of code to the demo client to decode & display
1142 ASN.1-structured records represented in the octet-aligned branch of
1143 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1145 Added z_ext_getentbyref() to the ASN module. Doc updated.
1147 * Completed the SCAN definition in the ASN module. This may break SCAN
1148 code based on older YAZ-versions at compile-time. The fix is easy -
1151 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1152 under the SCAN definition. Remember to initialize this, server-people.
1154 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1155 that this does not extend to ODR and ASN.
1157 Comstack allows insertion of established socket (primarily for
1158 inetd-operation of servers). Doc updated.
1160 Front-end server can now start from the inetd in TCP mode. Doc
1163 --- 1.0pl4 1996/1/24
1167 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1168 the rank and record number.
1170 Adjustments to the frontend server.
1172 Fixed diagnostic BER dumper. It ignored the file argument.
1176 Various changes to retrieval module.
1178 Changed the union discriminators of the protocol files from enums to
1179 ints paired with #defines.
1181 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1184 *Changed operator in the RPN structure to 'roperator', again to avoid a
1187 Fixed problems in Explain decoders/encoders.
1189 --- 1.0pl2 1995/12/6
1191 Memory bug in log module fixed.
1193 --- 1.0pl1 1995/12/5
1195 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1197 Bug in Explain DatabaseInfo module fixed.
1199 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1203 The shift to v1.0 signals that we now consider the *core* functionality
1204 of YAZ reasonably stable (the core being more or less equivalent to
1205 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1206 tested (Explain not at all - though that will happen soonish).
1208 Minor changes to code to support Windows port.
1210 Various minor changes after we're getting to use GRS-1 & co. more.
1212 Added Espec-1 format.
1214 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1215 of the protocol and it cannot be selected when encoding (maps into 'string'
1216 when decoding). Needed to talk to some servers.
1218 Demo client can request simple element set names.
1220 Added Diagnostic Format encoders/decoders.
1222 Added simple Close handling to frontend server (no hooks for resource
1223 reporting yet), and demonstration client.
1225 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1227 --- 1.0b3 1995/08/24
1229 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1230 handled incorrectly when records were requested in the searchResponse. This
1231 will only affect you if you use the frontend-server.
1233 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1234 Test-client will ask for and print GRS1. Ztest will return dummy records
1237 Added Explain encoders/decoders to the service-level API. Untested.
1239 Added Extended Services: Item Order encoders and decoders to the Service-
1240 level API. Untested. We could use a recent copy of the pertinent bits
1241 of the ILL protocol to add those bits.
1243 Added diagnostic format 1 encoders/decoders to the service-level API.
1246 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1247 odr_cons.c, which causes a more correct output.
1249 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1250 was always set to 0 when no records were requested in the searchRequest.
1252 * Added better external-handling. This shouldn't harm old code that
1253 *encodes* externals. It can break code that looks for a
1254 'single-ASN1-type' representation, since those types that are known
1255 are now decoded immediately. Look at the SUTRS sample code in
1256 seshigh.c and client.c. Documentation updated.
1258 Handling of structured records in bend_fetchresponse. Length -1 marks
1259 structured record, type is deduced from format field.
1261 --- 1.0b2 1995/06/27
1262 Fairly quick maintenance release to add SUTRS support.
1264 Fixed handling of SUTRS records in the demonstration client.
1266 * Added format field to the bend_fetchrequest and bend_fetchresponce
1267 structures of the backend API (frontend server). When the record is
1268 returned, the value of the format field is mapped to an OID. The
1269 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1270 of the record. The special value VAL_NONE in the bend_request means
1271 that no specific format was requested by the client. Documentation
1272 updated accordingly. Test server (ztest) will return a fixed dummy
1273 SUTRS record if your client requests SUTRS.
1275 Documentation updated accordingly.
1277 You can now set external libraries and RANLIB support in the top-level
1281 First public release.