1 Possible compatibility problems with earlier versions marked with '*'.
3 Fixes for Chunked encoding. White space not ignored after length spec.
5 Update NS and use default NS for SRW diagnostic elements.
9 Implement ZOOM_resultset_cache_reset which resets record cache.
11 Implement ZOOM_resultset_sort which sorts a result set.
13 Implement chunked HTTP transfer.
15 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
19 Added member 'schema' to bend_explain_rr structure so that backend
20 can specify explain record identifier. Defaults to Zeerex 2.0.
22 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
26 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
29 Added init command for yaz-client which sends "extra" init request.
31 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
32 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
34 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
36 Make ZOOM error code for "invalid query".
38 Fixed compilation for SSL which wasn't properly enabled for all platforms.
42 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
45 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
47 Added option -p <file> to make Generic Frontend Server to write PID file.
49 Added option -D to put Generic Frontend Server in background on its own.
51 Make ZOOM C recognize option "password". If unset, "pass" is used
52 (for backwards compatibility).
54 Fixed a bug in Generic Frontend Server that could make it crash if a
55 client sets characterSetNegotation bit, but didn't pass negotiation stuff
58 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
59 Must be issued before open, in order to be in effect.
61 --- 2.0.9-6 2004/01/12 Debian/Windows
63 Make the SRU server more picky WRT unknown params, etc.
65 Bug fix: ZOOM scan response didn't return displayTerm - when present.
67 New YAZ client command, options, that sets Z39.50 options.
69 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
70 options from a string of tokens (one token for each option bit).
72 Update SRW diagnostic code messages.
74 --- 2.0.9-5 2004/01/07 Debian/Windows
76 Handle user defined stylesheet for SRW/SRU.
78 --- 2.0.9-4 2004/01/06 Debian/Windows
80 Fix bug in decoding of Content-Length.
82 --- 2.0.9-3 2004/01/06 Debian/Windows
84 Fix a bug with decoding of XML packed records.
86 --- 2.0.9-2 2004/01/05 Debian only
88 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
90 Fix bug in SRW/SRU diagnostics decoding.
94 Fixed bug in Generic Frontend Server which could drop records exceeding
95 preferred message size. Reported and fixed by Irina Dijour.
97 Fixed calculation of package size for structured records in Generic
98 Frontend Server. Reported and fixed by Irina Dijour.
100 Fixed namespace for SRW/SRU diagnostics.
102 Fixed SEGV in yaz-client that occured for HTTP connection errors.
106 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
107 this version is incompatible with version 1.0 and older YAZ SRW/SRU
110 CQL changes to reflect recent changes to the specification:
111 * Documentation talks about context sets instead of index sets.
112 * Documentation talks about indexes instead of qualifiers.
113 * The CQL-to-PQF transformer's configuration file now uses
114 "index.set.name = <attributes>" instead of the old form
115 "qualifier.set.name = <attributes>". (Both forms are still
116 understood but the latter is deprecated.)
117 * CQL terms with no explicit index specified are now interpreted as
118 cql.serverChoice instead of srw.serverChoice (which of course
119 behaves exactly the same.)
123 MARC conversion can now generate ISO2709 output in another
124 character set. yaz-marcdump uses this facility if you invoke it
127 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
128 functions from there can be used from C++.
132 Frontend server now transfers memory from decoded packages to stream
135 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
136 references to show up.
138 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
139 the ZOOM Abstract API. The older names for the same options are still
140 also supported for the benefit of old applications.
142 ZOOM-C supports "implementationId" and "implementationVersion" options
143 to go along with "implementationName". These allow the user code to
144 specify identification strings to be sent to servers.
145 Add OID for the new ExtLite attribute set.
147 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
148 as requested/supplid by Ere Maijala <ere@atp.fi>
150 For generic frontend server, reverse the order of
151 "toolkit-supplied / application-supplied" strings sent as implementationId,
152 Name and Version. Also, remove the spaces around the slash. This brings
153 the GFS in line with the behaviour of ZOOM-C on the client side.
155 Add function ZOOM_scanset_display_term.
157 yaz-client shows scan displayTerm if present.
159 Utility yaz-iconv is now installed by default along with the man page
162 Extend configure check for OpenSSL to use pkg-config where available (such
165 Incorporate patch by Morten Bogeskov which allows a Unix file socket
166 server to specify uid/gid/mask for socket using the format
167 unix:[user=uid,][group=gid,][umask=mask,]file=path
168 If file= is omitted the existing format is assumed, e.g.
170 in which case the mask is 0666 (rw for everybody).
172 Major restructure of YAZ source. All source in libyaz is in src directory.
173 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
174 util (utility programs such as ASN.1 compiler, yaz-marcdump).
176 Added man page for utility yaz-marcdump (used to be called marcdump).
177 yaz-marcdump is installed by 'make install'.
179 Fixed a memory leak in Generic Frontend Server that occurred when decoding
180 of incoming package failed.
182 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
184 Change prototype of odr_perror: add const to message string.
186 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
188 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
189 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
190 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
191 DNS lookup. There should not be any compatibility problems with this
192 assuming that blocking=1 or 0 is used.
194 Fix bad reference in UNIX comstack in function cs_addrstr.
196 Fix for compilation on AIX.
198 The generic front-end server (server/seshigh.c) now supports returning
199 Init diagnostics to the client in User-information-field, in
200 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
205 Allow any CQL relation (not just all,any,exact,scr).
207 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
208 that features the same UI.
210 Implemented command update0 in YAZ client which is equivalent to
211 update but uses old of Ext Update ASN.1.
213 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
214 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
215 Previously no OID was used for this info.
217 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
218 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
219 returns 'malformed search term' otherwise.
221 SortResponse member resultCount now set to NULL in sort handler of
224 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
227 Add three new utility functions for translating OIDs between various
228 formats -- symbolic name such as "Usmarc", minus-1-terminated int
229 arrays and dotted strings such as "1.2.840.10003.9.5.1":
230 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
231 char *oid_to_dotstring(const int *oid, char *oidbuf);
232 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
234 Reverted modifications for ES Update definition for z_IU0Update
235 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
236 is back to YAZ 2.0.2.
238 String value attributes for CCL parser.
240 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
241 which their FirstSearch server returns in Init responses, sometimes
242 carrying useful diagnostic information when Init fails. This has the
243 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
244 "z39.50/oclcui.asn", where its definition is somewhat different from
245 what OCLC document on their web-site, as required to interoperate with
248 Support for anonymous authentication in yaz-client. Use the command
251 * Fix the OID of the Index Data-local "admin" Extended Service from
252 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
253 the 1000, which indicates a locally-defined OID, was a mistake.
257 Fix CCL directive @case handling so that it affects string match for
258 both CCL keywords and qualifiers.
260 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
261 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
262 Decoder has been updated with ASN.1 changes as listed in
263 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
264 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
265 z_IUUpdate, remains unchanged.
267 ZOOM_record_get may now return a record in a specific character set.
268 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
269 "from" is the character set of record as returned by target. "to" is
270 the character set to be returned. If omitted, "to" is UTF-8.
272 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
274 New ODR utility, odr_getelement, which returns name of element for
275 which encoding/decoding failed.
277 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
278 in cases where a required element was omitted.
280 Bug fix: some MARC8 sequences were not converted.
282 New ZOOM option "step" which specifies number of records to be
283 retrieved in one chunk. Used in conjunction with "start" and "count".
285 SRW support for yaz-client. Use scheme http: to use it, e.g.
288 yaz-client no longer does (un)intelligent character set conversions
289 by default. Can be enabled with charset and marc_charset commands.
291 xmalloc trace fix for 64-bit systems such as DEC alpha.
293 Solaris 2.6 compile fix.
295 New function, cql_strerror() translates SRW error codes, as returned
296 by cql_transform_error(), into human-readable English strings. Used
297 in yaz-client diagnostics when appropriate.
299 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
300 converts it into a type-1 query which is sent to the server. This
301 makes CQL available for use with all Z-servers, as opposed to the tiny
302 minority that can handle CQL queries themselves.
306 New Debian package layout similar to the Redhat Package layout.
308 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
309 and search result respectively.
313 Redhat package is now several packages: libyaz (runtime libraries),
314 libyaz-devel (development and documentation, and yaz (utility programs).
315 Package spec file by Morten Bøgeskov.
317 New member 'schema' in struct bend_fetch_rr which the name of requested
318 schema (SRW/SRU) for record (or NULL if none was given). The fetch
319 handler MAY set this to reflect the schema of the returned record.
321 New member 'display_term' in struct scan_entry. GFS now sets member entries
322 and allocates scan entries to be filled by user scan handler. In previous
323 version, entries member was allocated by the scan handler. That still works,
324 but the GFS will ignore member display_term - assuming it was NOT set by
325 the handler. The fact that the GFS now allocates the entries both allows
326 for new members and makes a scan handler easier to write.
328 Fix CQL lex buffer overflow.
330 SRW/SRU recordPacking. For SRW default recordPacking is string. For
331 SRU default recordPacking is string.
333 SRU protocol support for frontend server.
335 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
337 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
339 Added scan for the ZOOM shell (zoomsh).
343 * String Identifers for Schemas (Amendment 5).
344 http://lcweb.loc.gov/z3950/agency/amend/am5.html
345 Old definition for schema
346 Odr_oid *schema; /* OPT */
351 Z_InternationalString *uri;
352 #define Z_Schema_oid 1
353 #define Z_Schema_uri 2
356 * resultCount parameter to Sort Response (Amendment 1).
357 http://lcweb.loc.gov/z3950/agency/amend/am1.html
359 Support for SRW 1.0 over HTTP. This is an optional feature and
360 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
363 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
364 on the same port. SRW SearchRetrieveRequests are mapped
365 to bend_init,bend_search,bend_fetch,bend_close.
367 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
369 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
370 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
372 ZOOM connections are SRW based if schem http is used for hostname
373 in connect, e.g. z = ZOOM_connection_new("http://myserver");
374 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
376 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
377 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
378 distance=n, order=true/false, relation=le, prox unit=word. If
379 n is omitted, distance 1 is used.
381 Fixed problem with C compiler include path in wrong order.
383 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
384 on Solaris. Patch from Ko van der Sloot.
386 New MARC decode API. All new functions operate on a yaz_marc_t
387 handle. The most important new functions are: yaz_marc_create,
388 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
389 decode and destroy respectively. Decoder can produce formats
390 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
391 include/yaz/marcdisp.h.
393 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
394 to UTF-8, UCS-32, wchar_t or Latin-1.
396 * Prototypes for yaz_iconv_-functions moved to separate header
397 include/yaz/yaz-iconv.h.
399 Make a few private functions 'static' in unix.c. This prevents
400 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
402 For ZOOM connection, the options targetImplementation{Id,Name,Version}
403 are set when Init Response is received.
405 New function ZOOM_connection_error_x similar to ZOOM_connection_error
406 but returns diagnostic set as well.
408 New function yaz_strerror which is a portable wrapper for
409 strerror/strerror_r/GetLastMessage.
411 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
412 is returned for MARC. If type is "oai", then OAI MARC is returned.
414 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
419 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
421 Fix bad race conditions on SIGTERM and terminate gracefully in
424 Move retrieval (data1) module to Zebra since nobody seems to be
427 Add GRS-1 render for ZOOM using same format as yaz-client.
431 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
433 Fix broken ESpec handling in data1 module.
435 SGML reader parses comments and makes them part of the data1 tree.
437 Added several type casts so that YAZ compiles as C++ code.
439 ZOOM didn't handle PDU encoding failures properly.
441 Added more Bib-1 diagnostics (approved extensions).
443 GNU configure: better check for iconv.
445 More portable use of accept, getpeername. Check for socklen_t. Use
446 int/size_t if socklen_t is not defined.
450 PQF parser rejects bad queries - including those with extra
451 characters in them. PQF parser used to silently ignore that.
452 Cleaner API for PQF added, which allows you to get detailed
453 error information for bad queries (see yaz/pquery.h).
455 Fixed bug in ZOOM_record_get for type "database".
457 Implemented mini iconv library supporting conversions between
458 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
460 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
464 Fixed ZOOM C record cache so that preferredRecordSyntax and
465 elementSetName is used to check for already fetched records.
469 Added three members in bend_initrequest structure to facilitate
470 character set negotiation.
472 Fixed a bug in frontend server that could cause indefinite
473 loops under rare conditions.
475 Revised character set utilities (charneg.h) so that encoding
476 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
478 For PQF, directive @term <type> sets term type for Scan/Search.
479 Here <type> is general, string, numeric, null. The term type
480 is inherited - just like @attr.
482 New call odr_set_charset that sets character set conversion for
483 international-strings on a ODR stream. Prototype is:
484 int odr_set_charset(ODR o, const char *to, const char *from);
485 The InternationalString is still represented as C string in YAZ
486 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
487 won't). On the protocol level, you can use any encoding.
489 Support for UNIX sockets in ZOOM.
491 Solaris recv sometimes returns errno == ENOENT. It is treated as
492 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
494 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
495 both client and server. Code by Morten Bøgeskov.
499 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
500 that they can be used directly from Visual Basic. You must recompile
501 your windows APP if you're using ZOOM.
503 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
504 Commands "lang" and "charset" sets language and character set respectively.
505 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
506 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
508 Attributes from multiple CCL fields may be OR'ed rather than merged
509 using directive "@field or". Fields are still merged by default -
510 equivalent to "@field merge".
512 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
515 Fixed bug in zget for parameter ExtendedServicesResponse.
521 Added PQF feature: '@attr type=value' may be written as '@type=value'.
523 Client displays USR.1:SearchResult-1 (hits per term).
525 Additional Search Info for search in Generic Frontend Server.
527 Fixed CCL parsing of "field=s".
529 WIN32 installer - using the excellent NSIS software from nullsoft.
531 Fixed CCL parsing of "field = - <number>".
533 Added function yaz_marc_decode that decodes MARC for line mode
534 display or XML (similar to that used by JZKit).
536 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
537 Z39.50. But ISO/ILL was, however.
539 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
540 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
542 http://lcweb.loc.gov/z3950/agency/amend/am2.html
543 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
547 New YAZ client features: Command completion and new commands:
548 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
549 Code provided by Jacob Poulsen.
551 New call oid_trav, that visits all registered OIDs via callback.
553 Function ZOOM_record_get now returns const char pointer rather than
554 void pointer. It saves a lot of type casts.
556 For YAZ client, command "auth" now allows you to set authentication
557 in IdPass style. It is enabled when three tokens are given - order
558 is user, group and password.
560 Fix memory leaks in MARC record handling for ZOOM.
562 New option for YAZ client, -k <kilobytes> that sets
563 maximum record size. Similar to -k option for generic frontend
564 server and yaz-ztest.
566 More fixes for scan. Non-zero stepSize handled. OID's fixes.
568 Prefix query parser reports "fail" when bad attribute set is given.
570 Fix in MARC decoder. Proximity logging. Fix for attribute set
571 in scan handler for server. Patches by Shigeru Ishida.
573 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
576 Configure option --with-openssl=<dir> now works when a directory is
577 specified. Patch provided by Morten Bøgeskov.
579 New option for YAZ client, -u <auth>, that sets authentication.
581 ZOOM fix: error information was sometimes "missing", since error
582 was cleared/reset too when it shouldn't.
584 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
588 Scan for ZOOM API. New object ZOOM_scanset. New functions
589 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
590 ZOOM_scanset_destroy.
592 New ZOOM function, ZOOM_connection_last_event, that returns type
593 of last event (such as "receive data", "send data", "apdu received",
596 New ZOOM option, schema, that specifies schema for retrieval.
598 New CCL feature. Qualifiers can be aliases for one or more
599 other qualifiers (if more than one is given, OR is used).
601 ZOOM uses named result sets if target supports it.
603 Two new YAZ client commands: . (dot, which sources a script of YAZ
604 client commands), and ! (to execute shell command.). Implemented
607 Working on Debian packages.
611 YAZ client enables named result sets only if target supports it.
613 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
615 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
616 with key="host" to get same result.
618 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
619 Function Z3950_resultset_record(s) returns references to records
620 "owned" by resultset. To become owner use Z3950_record_clone.
622 Function z_ext_record handles Extended Services. Thanks to
627 CCL Parser fix: ignore token comma when dealing with and-lists.
629 Documentation updates for COMSTACK.
631 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
632 Changed prototype Z3950_records. For some functions, int parameters
633 were changed to size_t.
635 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
638 New MARC decode/display function, marc_display_exl, which properly rejects
639 non-ISO2709 records. YAZ client uses it.
643 Fix bug: local attribute set wasn't set correctly in PQF strings.
647 * Old Z39.50 codecs no longer supported.
649 Added ZOOM C binding. See http://zoom.z3950.org/
651 Renamed states for COMSTACKs to avoid confusion with events.
653 Implemented cs_look and proper cs_rcvconnect.
655 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
657 Configure detects POSIX threads on OpenBSD.
659 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
660 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
662 When error is returned from present handler, non-surrogate diagnostic
663 is returned in present response (and fetch handler is no longer called).
665 * Minor adjustments to pquery parser (PQF). Token characters may be
666 escaped by using backslash (C-style).
668 PQF parser allows string attribute values to be specified. For @attr,
669 non-numeric characters after the equal-sign are treated as strings
670 (e.g. @attr 9=title).
672 CCL trunction character may be defined (@truncation in file)
674 * function zget_ExtendedServicesRequest sets waitAction to
675 waitIfPossible (was wait).
677 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
680 CCL operator names may be set in field definition files (CCL_bibset).
681 See ccl/bib1 for an example.
683 Fixes in ASN.1 compiler for C++ compatibility.
685 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
686 and "op_or" to avoid conflict with C++.
688 Fixed problem with GNU readline detection on Redhat 7.0.
690 Added step-size for Scan backend handler.
692 Fixed bug that made the frontend server crash when no attribute
693 set was specified for scan.
695 Front-end server automatically switches to original working directory
696 when installed as an NT service. Previously -w had to be specified to
699 Added extended attributes for retrieval module (data1), so that data1
700 records carry d1_readXML/SGML attributes. d1_read also supports
701 null-data rules ( <tag/>)
703 On UNIX when POSIX threads are available, a separate library libyazthread
704 is created. Programmers should link with that library and the yaz library
705 when using threads. The reason for the split was that some applications
706 on Linux, such as Apache, doesn't work well when using shared objects that
709 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
710 (or any frontend server) in SSL mode by specifying ssl: followed by
711 address. Only tested on UNIX.
713 Added feature for CCL module. Virtual structure s=al or s=ol generates
714 and-list and or-list respectively instead of phrase search.
718 * Added prefix "yaz_" for the functions log_init.., log_file.. and
719 log_mask_str. This was done to avoid name conflicts with other libraries
720 (such as other PHP extensions).
722 Added raw OID member for preferred record syntax (request_format_raw)
723 and returned record syntax (output_format_raw) for backend fetch method.
725 Config file yaz-config now accepts options so that it returns specific
726 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
728 Shared library support for UNIX using GNU libtool.
730 * Modified backend interface. Request/Response struct's replaced by
731 one read/write C struct. For example bend_fetchrequest and
732 bend_fetchresult have been replaced by single bend_fetch_rr struct.
733 Every handler - even search has to be registered in bend_init
734 handler. This means that the YAZ library no longer refers to
735 external functions and it makes it possible to make the whole
736 thing a single DLL/SO.
738 Added Segment handler for backend server.
740 Added Zmbol/Zebra administrative functions to YAZ client.
742 Threaded frontend server on UNIX (when POSIX Threads are available).
743 Starting the server with option -T enables multi-threading.
747 Added configure option --enable-comp/disable-comp to control use
748 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
749 located in sub directory asn.
751 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
752 in ${exec_prefix}/bin along with the other programs yaz-client and
755 GNU automake used to maintain makefiles.
759 Changed retrieval module so that we can load records with no abstract
760 syntax defined. Tagpaths in these records are fully composed of string
763 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
767 On UNIX, the generated makefile now supports a proper 'make install'.
768 The prefix can be set via GNU configure to set the install location
769 (default is /usr/local).
771 * YAZ programs client and ztest were renamed to yaz-client and
772 yaz-ztest to avoid conflicts when users install YAZ in "standard"
773 locations, such as /usr/bin,/usr/local/bin,etc.
775 * YAZ Header files were moved from include to include/yaz. YAZ Header
776 files are referred to as include <yaz/log.h> rather than <log.h>.
777 The YAZ include path (-I ..) is therefore the same as before. Programmers
778 should update their #include statements or use -Ipath/include/yaz
779 instead. The main motivation for doing this change is that YAZ header files
780 can be installed in "standard" locations /usr/include,/usr/local/include
781 without introducing conflicts, since ALL YAZ header files are stored
782 in subdirectory yaz (under /usr/include for example).
784 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
785 rather than project/workspace files. We switched because project files
786 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
789 Changed name of logging function, logf, to yaz_log, to prevent name
790 clash with some math-log functions. The YAZ header log.h defines logf
791 to yaz_log (#define) so there should be no incompatibilities by this
794 Added bend_start/bend_stop handlers for server. These handler are
795 called on start/stop of server. For windows they are called whenever
796 a service is started/stopped.
798 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
799 a fairly small ASN.1 compiler written in Tcl. The compiler is located
800 in util/yc.tcl. The auto-generated C code structures are, in a few
801 cases, incompatible with the old decoders. There are differences in the
802 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
803 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
804 The preprocessor variable ASN_COMPILED is defined when the compiled
805 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
806 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
807 wish to use the old encoders/decoders you can specify --disable-yc
810 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
811 version so that it supports both new - and old version of DB Update
813 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
814 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
815 change. The name parameter can be set to 0 in which no name is specified
816 for the construction. The macros odr_implicit and odr_explicit sets name
817 parameter to zero for the construction involved. New macros
818 odr_implicit_tag and odr_explicit_tag are similar to the others,
819 except that a name parameter is added. For programmers' that don't use
820 ODR they probably only need to change the call to z_APDU and z_External.
822 Added access control facility by interfacing the TCP wrapper library.
823 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
824 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
825 name of the daemon and enables the access control as specified in
826 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
828 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
829 den Dool <H.M.vdnDool@kub.nl>.
831 Added reference ID parameter to most functions in server API - refer
832 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
834 Changed name of ccl library to libccl.a (was ccl.a).
836 Fixed bug in decoder for Explain (Category TargetInfo).
838 Added support for GNU readline in client. Thanks to Jacob Poulsen
839 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
841 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
842 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
843 IMPLEMENTATION! This change was made to the development version before
844 the ZIG decided to retract the amendment. If any users MUST be
845 compatible with the original Update definition, PLEASE CONTACT US, and
846 we will include a separate definition corresponding to the old Update
847 ES. Note that because of the change to the ASN.1 of the
848 TaskPackageRecordStructure we cannot define a single structure that
849 will support both versions.
851 * Added const modifier to buffer parameter for some ODR/BER encoding
852 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
853 completeWAIS, odr_dumpBER.
855 Fixed bug in client.c which caused a crash when a scanResponse didn't
856 contain positionOfTerm.
858 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
859 * will cause an error in a client if a non-YAZ target sends both a
860 * list of Scan entries and non-surrogate diagnostics.
862 Retrieval module enhancements. Tag sets may be typed in the reference
863 to it. From the .abs-file the "tagset" directive takes a third optional
864 integer type for the tag set referenced. From a .tag-file the "include"
865 directive takes a third optional type as well. The old "type" directive
866 in the tag set itself is still recognized but acts as the default type
869 Backend interface change. Individual Scan terms returned from bend_scan
870 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
871 in include/backend.h.
873 Retrieval module enhancements. Multiple tag sets and attribute sets may
874 be specified in abstract syntax specs. Revised the error/warning for
875 logging messages reported by the retrieval module when reading the
878 Object Identifier system (oid_..) changed. The API is backwards
879 compatible but the oid-routines now allocates new OID's when needed.
880 Raw OID's may be specified in oid_getvalbyname.
882 YAZ now uses GNU configure to generate Makefile(s).
884 * Minor changes in some of the member names of DeleteResultSetRequest and
885 DeleteResultSetResponse. See include/proto.h.
887 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
888 and added member 'languages' in TargetInfo (which was missing).
890 Changed the way attribute sets are handled in the retrieval
891 module. These are now cached, just like the abstract syntaxes
894 Changed YAZ so that it links with compiled ASN.1.
896 Added Explain-schema definitions and mapping routines. The following
897 Explain categories have been implemented: AttributeDetails,
898 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
900 Fixed minor bug in Windows version of Server Library.
902 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
904 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
906 Added EXTERNAL: UNIverse Resource Report (non-standard).
908 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
909 ENUMERATED and SET OF.
911 * Added 'const' to some of the char pointer arguments for the
912 functions, data1_read_node, data1_getelementbytagname,
913 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
916 Fixed bug in data1_insert_taggeddata - the last_child member of
917 parent wasn't initialised.
919 * Changed data1_read_record and data1_read_node so that the supplied
920 "SGML"-buffer is read-only. In particular the resulting data1 - tree
921 doesn't refer to any parts of the "SGML"-buffer.
923 Fixed bug in server library (Windows version of statserv_remove).
925 * Changed code so that it compiles as C++. The type definition
926 of Odr_fun which is a member of Odr_arm was changed. The result is,
927 that an explicit typecast is needed for the fun pointer when
928 using Odr_arm - as in:
929 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
931 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
933 Implemented the new structured date and time definition as approved
934 by the ZIG. Added schemaId element to the specificTag in Espec-1
935 (also approved at the last ZIG). Thanks to RVDM.
937 Added some Object identifiers (RVDM).
939 Changed the Update Extended Service (RVDM).
941 Added command "refid" to client which specifies referenceId for
942 the following requests.
944 Implemented extended service handling for server. See ztest.c
945 for an example as well as backend.h. New handlers are registerd
948 * Changed interface for sort in server.
950 Added new members to statserv_options_block. It allows a server
951 to read options from another source than just the command line. Thanks
952 to Charles Woodfield.
954 * Changed definition of Z_Triple in file prt-grs.h - member boolean
955 renamed to zboolean. Some C++ compilers complained about the name.
957 Minor changes to gils.abs. Added index 's' (sort) on title
958 and date/time-last-modified.
962 Fixed bug in server library regarding inetd mode (-i). This bug
963 was introduced by release 1.4.
967 Added sort facility in client and backend server interface.
969 Fixed problem with dependencies in Makefile(s).
971 Fixed bugs for encoders/decoders of extended services and
974 Implemented sub-tree feature for schemas. Sub-trees are
975 referenced in *.abs-files. See explain.abs for an example
976 of the use of this feature.
978 Modified bib1.att; local attributes for ANY didn't include
979 ANY itself (only affects use of the retrieval module).
981 Fixed bug in plain SGML reader in function data1_read_node:
982 tags with prefix "var" was incorrectly interpreted as variants.
984 Added feature "sub-schemas" to enable references to - and definitions
985 of - group of elements.
987 * Removed member parent from type data1_element (in data1.h).
989 Implemented function odr_nullval() that returns the value of
992 * Removed member num_children from data1_node (in data1.h).
994 Made NT service interface part of the server library. The
995 function statserv_main uses the NT service when required and
996 calls the statserv_start / statserv_close routines.
998 Routine zget_SearchRequest and zget_PresentRequest fills
999 resultSetName/Id member with "default" instead of "Default".
1001 Fixed memory leak in server. Request queue member wasn't freed.
1003 Fixed nmem_exit so that memory is freed.
1007 Revised the CCL parser utility to be thread safe.
1009 Added function, oid_ent_to_oid, to replace the function
1010 oid_getoidbyent, which is not thread safe.
1012 * Added nmem_init and nmem_exit to initialize and release
1013 NMEM resources. Function nmem_init should be called once in the
1014 initial thread before NMEM/ODR is used. statserv.c and client.c
1015 have been changed accordingly. The change was necessary to make
1016 NMEM thread safe. The NMEM memory pool is shared amongst threads
1017 in a process. Unix-based applications will still work fine without
1020 Added NT Services interface for the the Z39.50 (statserv) Server.
1021 Refer to the ztest.c source on the usage.
1023 Windows 95/NT port using MSVC5.0. Project files are included in the
1026 * Defined new 'global' handle for the retrieval (data1) system. The
1027 new handled, data1_handle, describes the state of the data1 system.
1028 This handle is passed as first argument to virtually all
1029 data1 related routines. The functions data1_create and data1_destroy
1030 creates and destroys a data1 handle respectively.
1032 Added ODR encode stream member to all backend request structures
1033 init, search, scan etc. This stream should be used to allocate all
1034 memory used for the response when thread safe operation is needed.
1036 Changed the comstack utility, cs_addstr, to be thread safe. The
1037 returned hostname string returned by the function is now part the
1040 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1041 function. The cs_straddr takes a COMSTACK handle as argument, so this
1042 function must be used after cs_create and before bind/connect.
1043 This function is thread safe.
1045 Moved test server to 'ztest' directory - generic server code still
1046 in 'server' directory.
1048 Made prefix query (pquery.c) utility thread safe.
1050 Added new function modifier YAZ_EXPORT to 'export' public DLL
1051 functions when using windows (see include/yconfig.h).
1053 Added definitions to the OID database (util/oid.c) (RVDM).
1055 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1057 Added call to ccl_rpn_delete in client program.
1059 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1060 release of RPN structure.
1062 Added support for C++, headers uses extern "C" for public definitions.
1063 With input from RVDM.
1065 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1066 Thanks to Ronald van der Meer (RVDM).
1068 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1070 Added support for private extensions to the OID database
1071 (oid_setprivateoids()). Thanks to RVDM.
1073 Added optional, physical ANY (key replication)
1075 Fixed null-reference problem in GRS-1 output filter.
1077 Proximity operator added to Prefix Query Format (PQF).
1079 In test client command "base" accepts multiple databases.
1081 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1085 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1087 Smallish bug-fixes in the new encoders/decoders (explain).
1089 Bug fixed in DeleteRequest.
1091 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1093 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1095 Added SOIF syntax (using private OID for now) to retrieval module and client.
1097 Added Update extended service.
1099 Added SearchResult-1 additional info structure.
1101 Added optional CCL (ISO8777) interpreter as separate module. Available
1104 --- 1.2 1996/6/10 (1st anniversary release)
1106 Added Summary record syntax. Lightly tested.
1108 Added OPAC record syntax. Untested.
1110 Added ResourceReport service encoders/decoders. Untested.
1112 Fixed bug in z_Unit - wrong tagging on unitSystem.
1114 Fixed bug in the DiagRecs decoder.
1116 Added options for max PDU size and session timeout to frontend-server.
1118 Added documentation of query-language parsers and other supporting utilities.
1120 [frontend-server] Added Attribute set to the bend_scanrequest API.
1122 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1123 surrogate diagnostics were generated.
1125 [retrieval] Allow multiple local values for attribute.
1127 [retrieval] Allow multiple attributes per element in .abs files. index type.
1129 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1131 --- 1.1pl2 1996/4/10
1133 Minor changes, mostly specific to Zebra's requirements (retrieval)
1137 Repaired bug in frontend server when running multiple listening
1138 endpoints in dynamic mode.
1140 z_External() now won't break if a known, ASN.1 value comes encapsulated
1141 in an octet-string. The value will pass through unmodified in an Odr_oct.
1143 Added a bit of code to the demo client to decode & display
1144 ASN.1-structured records represented in the octet-aligned branch of
1145 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1147 Added z_ext_getentbyref() to the ASN module. Doc updated.
1149 * Completed the SCAN definition in the ASN module. This may break SCAN
1150 code based on older YAZ-versions at compile-time. The fix is easy -
1153 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1154 under the SCAN definition. Remember to initialize this, server-people.
1156 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1157 that this does not extend to ODR and ASN.
1159 Comstack allows insertion of established socket (primarily for
1160 inetd-operation of servers). Doc updated.
1162 Front-end server can now start from the inetd in TCP mode. Doc
1165 --- 1.0pl4 1996/1/24
1169 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1170 the rank and record number.
1172 Adjustments to the frontend server.
1174 Fixed diagnostic BER dumper. It ignored the file argument.
1178 Various changes to retrieval module.
1180 Changed the union discriminators of the protocol files from enums to
1181 ints paired with #defines.
1183 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1186 *Changed operator in the RPN structure to 'roperator', again to avoid a
1189 Fixed problems in Explain decoders/encoders.
1191 --- 1.0pl2 1995/12/6
1193 Memory bug in log module fixed.
1195 --- 1.0pl1 1995/12/5
1197 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1199 Bug in Explain DatabaseInfo module fixed.
1201 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1205 The shift to v1.0 signals that we now consider the *core* functionality
1206 of YAZ reasonably stable (the core being more or less equivalent to
1207 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1208 tested (Explain not at all - though that will happen soonish).
1210 Minor changes to code to support Windows port.
1212 Various minor changes after we're getting to use GRS-1 & co. more.
1214 Added Espec-1 format.
1216 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1217 of the protocol and it cannot be selected when encoding (maps into 'string'
1218 when decoding). Needed to talk to some servers.
1220 Demo client can request simple element set names.
1222 Added Diagnostic Format encoders/decoders.
1224 Added simple Close handling to frontend server (no hooks for resource
1225 reporting yet), and demonstration client.
1227 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1229 --- 1.0b3 1995/08/24
1231 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1232 handled incorrectly when records were requested in the searchResponse. This
1233 will only affect you if you use the frontend-server.
1235 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1236 Test-client will ask for and print GRS1. Ztest will return dummy records
1239 Added Explain encoders/decoders to the service-level API. Untested.
1241 Added Extended Services: Item Order encoders and decoders to the Service-
1242 level API. Untested. We could use a recent copy of the pertinent bits
1243 of the ILL protocol to add those bits.
1245 Added diagnostic format 1 encoders/decoders to the service-level API.
1248 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1249 odr_cons.c, which causes a more correct output.
1251 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1252 was always set to 0 when no records were requested in the searchRequest.
1254 * Added better external-handling. This shouldn't harm old code that
1255 *encodes* externals. It can break code that looks for a
1256 'single-ASN1-type' representation, since those types that are known
1257 are now decoded immediately. Look at the SUTRS sample code in
1258 seshigh.c and client.c. Documentation updated.
1260 Handling of structured records in bend_fetchresponse. Length -1 marks
1261 structured record, type is deduced from format field.
1263 --- 1.0b2 1995/06/27
1264 Fairly quick maintenance release to add SUTRS support.
1266 Fixed handling of SUTRS records in the demonstration client.
1268 * Added format field to the bend_fetchrequest and bend_fetchresponce
1269 structures of the backend API (frontend server). When the record is
1270 returned, the value of the format field is mapped to an OID. The
1271 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1272 of the record. The special value VAL_NONE in the bend_request means
1273 that no specific format was requested by the client. Documentation
1274 updated accordingly. Test server (ztest) will return a fixed dummy
1275 SUTRS record if your client requests SUTRS.
1277 Documentation updated accordingly.
1279 You can now set external libraries and RANLIB support in the top-level
1283 First public release.