1 Possible compatibility problems with earlier versions marked with '*'.
3 Implement chunked HTTP transfer.
5 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
9 Added member 'schema' to bend_explain_rr structure so that backend
10 can specify explain record identifier. Defaults to Zeerex 2.0.
12 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
16 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
19 Added init command for yaz-client which sends "extra" init request.
21 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
22 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
24 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
26 Make ZOOM error code for "invalid query".
28 Fixed compilation for SSL which wasn't properly enabled for all platforms.
32 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
35 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
37 Added option -p <file> to make Generic Frontend Server to write PID file.
39 Added option -D to put Generic Frontend Server in background on its own.
41 Make ZOOM C recognize option "password". If unset, "pass" is used
42 (for backwards compatibility).
44 Fixed a bug in Generic Frontend Server that could make it crash if a
45 client sets characterSetNegotation bit, but didn't pass negotiation stuff
48 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
49 Must be issued before open, in order to be in effect.
51 --- 2.0.9-6 2004/01/12 Debian/Windows
53 Make the SRU server more picky WRT unknown params, etc.
55 Bug fix: ZOOM scan response didn't return displayTerm - when present.
57 New YAZ client command, options, that sets Z39.50 options.
59 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
60 options from a string of tokens (one token for each option bit).
62 Update SRW diagnostic code messages.
64 --- 2.0.9-5 2004/01/07 Debian/Windows
66 Handle user defined stylesheet for SRW/SRU.
68 --- 2.0.9-4 2004/01/06 Debian/Windows
70 Fix bug in decoding of Content-Length.
72 --- 2.0.9-3 2004/01/06 Debian/Windows
74 Fix a bug with decoding of XML packed records.
76 --- 2.0.9-2 2004/01/05 Debian only
78 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
80 Fix bug in SRW/SRU diagnostics decoding.
84 Fixed bug in Generic Frontend Server which could drop records exceeding
85 preferred message size. Reported and fixed by Irina Dijour.
87 Fixed calculation of package size for structured records in Generic
88 Frontend Server. Reported and fixed by Irina Dijour.
90 Fixed namespace for SRW/SRU diagnostics.
92 Fixed SEGV in yaz-client that occured for HTTP connection errors.
96 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
97 this version is incompatible with version 1.0 and older YAZ SRW/SRU
100 CQL changes to reflect recent changes to the specification:
101 * Documentation talks about context sets instead of index sets.
102 * Documentation talks about indexes instead of qualifiers.
103 * The CQL-to-PQF transformer's configuration file now uses
104 "index.set.name = <attributes>" instead of the old form
105 "qualifier.set.name = <attributes>". (Both forms are still
106 understood but the latter is deprecated.)
107 * CQL terms with no explicit index specified are now interpreted as
108 cql.serverChoice instead of srw.serverChoice (which of course
109 behaves exactly the same.)
113 MARC conversion can now generate ISO2709 output in another
114 character set. yaz-marcdump uses this facility if you invoke it
117 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
118 functions from there can be used from C++.
122 Frontend server now transfers memory from decoded packages to stream
125 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
126 references to show up.
128 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
129 the ZOOM Abstract API. The older names for the same options are still
130 also supported for the benefit of old applications.
132 ZOOM-C supports "implementationId" and "implementationVersion" options
133 to go along with "implementationName". These allow the user code to
134 specify identification strings to be sent to servers.
135 Add OID for the new ExtLite attribute set.
137 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
138 as requested/supplid by Ere Maijala <ere@atp.fi>
140 For generic frontend server, reverse the order of
141 "toolkit-supplied / application-supplied" strings sent as implementationId,
142 Name and Version. Also, remove the spaces around the slash. This brings
143 the GFS in line with the behaviour of ZOOM-C on the client side.
145 Add function ZOOM_scanset_display_term.
147 yaz-client shows scan displayTerm if present.
149 Utility yaz-iconv is now installed by default along with the man page
152 Extend configure check for OpenSSL to use pkg-config where available (such
155 Incorporate patch by Morten Bogeskov which allows a Unix file socket
156 server to specify uid/gid/mask for socket using the format
157 unix:[user=uid,][group=gid,][umask=mask,]file=path
158 If file= is omitted the existing format is assumed, e.g.
160 in which case the mask is 0666 (rw for everybody).
162 Major restructure of YAZ source. All source in libyaz is in src directory.
163 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
164 util (utility programs such as ASN.1 compiler, yaz-marcdump).
166 Added man page for utility yaz-marcdump (used to be called marcdump).
167 yaz-marcdump is installed by 'make install'.
169 Fixed a memory leak in Generic Frontend Server that occurred when decoding
170 of incoming package failed.
172 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
174 Change prototype of odr_perror: add const to message string.
176 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
178 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
179 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
180 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
181 DNS lookup. There should not be any compatibility problems with this
182 assuming that blocking=1 or 0 is used.
184 Fix bad reference in UNIX comstack in function cs_addrstr.
186 Fix for compilation on AIX.
188 The generic front-end server (server/seshigh.c) now supports returning
189 Init diagnostics to the client in User-information-field, in
190 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
195 Allow any CQL relation (not just all,any,exact,scr).
197 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
198 that features the same UI.
200 Implemented command update0 in YAZ client which is equivalent to
201 update but uses old of Ext Update ASN.1.
203 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
204 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
205 Previously no OID was used for this info.
207 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
208 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
209 returns 'malformed search term' otherwise.
211 SortResponse member resultCount now set to NULL in sort handler of
214 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
217 Add three new utility functions for translating OIDs between various
218 formats -- symbolic name such as "Usmarc", minus-1-terminated int
219 arrays and dotted strings such as "1.2.840.10003.9.5.1":
220 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
221 char *oid_to_dotstring(const int *oid, char *oidbuf);
222 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
224 Reverted modifications for ES Update definition for z_IU0Update
225 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
226 is back to YAZ 2.0.2.
228 String value attributes for CCL parser.
230 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
231 which their FirstSearch server returns in Init responses, sometimes
232 carrying useful diagnostic information when Init fails. This has the
233 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
234 "z39.50/oclcui.asn", where its definition is somewhat different from
235 what OCLC document on their web-site, as required to interoperate with
238 Support for anonymous authentication in yaz-client. Use the command
241 * Fix the OID of the Index Data-local "admin" Extended Service from
242 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
243 the 1000, which indicates a locally-defined OID, was a mistake.
247 Fix CCL directive @case handling so that it affects string match for
248 both CCL keywords and qualifiers.
250 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
251 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
252 Decoder has been updated with ASN.1 changes as listed in
253 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
254 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
255 z_IUUpdate, remains unchanged.
257 ZOOM_record_get may now return a record in a specific character set.
258 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
259 "from" is the character set of record as returned by target. "to" is
260 the character set to be returned. If omitted, "to" is UTF-8.
262 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
264 New ODR utility, odr_getelement, which returns name of element for
265 which encoding/decoding failed.
267 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
268 in cases where a required element was omitted.
270 Bug fix: some MARC8 sequences were not converted.
272 New ZOOM option "step" which specifies number of records to be
273 retrieved in one chunk. Used in conjunction with "start" and "count".
275 SRW support for yaz-client. Use scheme http: to use it, e.g.
278 yaz-client no longer does (un)intelligent character set conversions
279 by default. Can be enabled with charset and marc_charset commands.
281 xmalloc trace fix for 64-bit systems such as DEC alpha.
283 Solaris 2.6 compile fix.
285 New function, cql_strerror() translates SRW error codes, as returned
286 by cql_transform_error(), into human-readable English strings. Used
287 in yaz-client diagnostics when appropriate.
289 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
290 converts it into a type-1 query which is sent to the server. This
291 makes CQL available for use with all Z-servers, as opposed to the tiny
292 minority that can handle CQL queries themselves.
296 New Debian package layout similar to the Redhat Package layout.
298 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
299 and search result respectively.
303 Redhat package is now several packages: libyaz (runtime libraries),
304 libyaz-devel (development and documentation, and yaz (utility programs).
305 Package spec file by Morten Bøgeskov.
307 New member 'schema' in struct bend_fetch_rr which the name of requested
308 schema (SRW/SRU) for record (or NULL if none was given). The fetch
309 handler MAY set this to reflect the schema of the returned record.
311 New member 'display_term' in struct scan_entry. GFS now sets member entries
312 and allocates scan entries to be filled by user scan handler. In previous
313 version, entries member was allocated by the scan handler. That still works,
314 but the GFS will ignore member display_term - assuming it was NOT set by
315 the handler. The fact that the GFS now allocates the entries both allows
316 for new members and makes a scan handler easier to write.
318 Fix CQL lex buffer overflow.
320 SRW/SRU recordPacking. For SRW default recordPacking is string. For
321 SRU default recordPacking is string.
323 SRU protocol support for frontend server.
325 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
327 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
329 Added scan for the ZOOM shell (zoomsh).
333 * String Identifers for Schemas (Amendment 5).
334 http://lcweb.loc.gov/z3950/agency/amend/am5.html
335 Old definition for schema
336 Odr_oid *schema; /* OPT */
341 Z_InternationalString *uri;
342 #define Z_Schema_oid 1
343 #define Z_Schema_uri 2
346 * resultCount parameter to Sort Response (Amendment 1).
347 http://lcweb.loc.gov/z3950/agency/amend/am1.html
349 Support for SRW 1.0 over HTTP. This is an optional feature and
350 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
353 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
354 on the same port. SRW SearchRetrieveRequests are mapped
355 to bend_init,bend_search,bend_fetch,bend_close.
357 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
359 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
360 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
362 ZOOM connections are SRW based if schem http is used for hostname
363 in connect, e.g. z = ZOOM_connection_new("http://myserver");
364 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
366 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
367 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
368 distance=n, order=true/false, relation=le, prox unit=word. If
369 n is omitted, distance 1 is used.
371 Fixed problem with C compiler include path in wrong order.
373 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
374 on Solaris. Patch from Ko van der Sloot.
376 New MARC decode API. All new functions operate on a yaz_marc_t
377 handle. The most important new functions are: yaz_marc_create,
378 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
379 decode and destroy respectively. Decoder can produce formats
380 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
381 include/yaz/marcdisp.h.
383 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
384 to UTF-8, UCS-32, wchar_t or Latin-1.
386 * Prototypes for yaz_iconv_-functions moved to separate header
387 include/yaz/yaz-iconv.h.
389 Make a few private functions 'static' in unix.c. This prevents
390 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
392 For ZOOM connection, the options targetImplementation{Id,Name,Version}
393 are set when Init Response is received.
395 New function ZOOM_connection_error_x similar to ZOOM_connection_error
396 but returns diagnostic set as well.
398 New function yaz_strerror which is a portable wrapper for
399 strerror/strerror_r/GetLastMessage.
401 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
402 is returned for MARC. If type is "oai", then OAI MARC is returned.
404 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
409 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
411 Fix bad race conditions on SIGTERM and terminate gracefully in
414 Move retrieval (data1) module to Zebra since nobody seems to be
417 Add GRS-1 render for ZOOM using same format as yaz-client.
421 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
423 Fix broken ESpec handling in data1 module.
425 SGML reader parses comments and makes them part of the data1 tree.
427 Added several type casts so that YAZ compiles as C++ code.
429 ZOOM didn't handle PDU encoding failures properly.
431 Added more Bib-1 diagnostics (approved extensions).
433 GNU configure: better check for iconv.
435 More portable use of accept, getpeername. Check for socklen_t. Use
436 int/size_t if socklen_t is not defined.
440 PQF parser rejects bad queries - including those with extra
441 characters in them. PQF parser used to silently ignore that.
442 Cleaner API for PQF added, which allows you to get detailed
443 error information for bad queries (see yaz/pquery.h).
445 Fixed bug in ZOOM_record_get for type "database".
447 Implemented mini iconv library supporting conversions between
448 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
450 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
454 Fixed ZOOM C record cache so that preferredRecordSyntax and
455 elementSetName is used to check for already fetched records.
459 Added three members in bend_initrequest structure to facilitate
460 character set negotiation.
462 Fixed a bug in frontend server that could cause indefinite
463 loops under rare conditions.
465 Revised character set utilities (charneg.h) so that encoding
466 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
468 For PQF, directive @term <type> sets term type for Scan/Search.
469 Here <type> is general, string, numeric, null. The term type
470 is inherited - just like @attr.
472 New call odr_set_charset that sets character set conversion for
473 international-strings on a ODR stream. Prototype is:
474 int odr_set_charset(ODR o, const char *to, const char *from);
475 The InternationalString is still represented as C string in YAZ
476 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
477 won't). On the protocol level, you can use any encoding.
479 Support for UNIX sockets in ZOOM.
481 Solaris recv sometimes returns errno == ENOENT. It is treated as
482 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
484 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
485 both client and server. Code by Morten Bøgeskov.
489 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
490 that they can be used directly from Visual Basic. You must recompile
491 your windows APP if you're using ZOOM.
493 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
494 Commands "lang" and "charset" sets language and character set respectively.
495 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
496 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
498 Attributes from multiple CCL fields may be OR'ed rather than merged
499 using directive "@field or". Fields are still merged by default -
500 equivalent to "@field merge".
502 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
505 Fixed bug in zget for parameter ExtendedServicesResponse.
511 Added PQF feature: '@attr type=value' may be written as '@type=value'.
513 Client displays USR.1:SearchResult-1 (hits per term).
515 Additional Search Info for search in Generic Frontend Server.
517 Fixed CCL parsing of "field=s".
519 WIN32 installer - using the excellent NSIS software from nullsoft.
521 Fixed CCL parsing of "field = - <number>".
523 Added function yaz_marc_decode that decodes MARC for line mode
524 display or XML (similar to that used by JZKit).
526 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
527 Z39.50. But ISO/ILL was, however.
529 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
530 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
532 http://lcweb.loc.gov/z3950/agency/amend/am2.html
533 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
537 New YAZ client features: Command completion and new commands:
538 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
539 Code provided by Jacob Poulsen.
541 New call oid_trav, that visits all registered OIDs via callback.
543 Function ZOOM_record_get now returns const char pointer rather than
544 void pointer. It saves a lot of type casts.
546 For YAZ client, command "auth" now allows you to set authentication
547 in IdPass style. It is enabled when three tokens are given - order
548 is user, group and password.
550 Fix memory leaks in MARC record handling for ZOOM.
552 New option for YAZ client, -k <kilobytes> that sets
553 maximum record size. Similar to -k option for generic frontend
554 server and yaz-ztest.
556 More fixes for scan. Non-zero stepSize handled. OID's fixes.
558 Prefix query parser reports "fail" when bad attribute set is given.
560 Fix in MARC decoder. Proximity logging. Fix for attribute set
561 in scan handler for server. Patches by Shigeru Ishida.
563 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
566 Configure option --with-openssl=<dir> now works when a directory is
567 specified. Patch provided by Morten Bøgeskov.
569 New option for YAZ client, -u <auth>, that sets authentication.
571 ZOOM fix: error information was sometimes "missing", since error
572 was cleared/reset too when it shouldn't.
574 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
578 Scan for ZOOM API. New object ZOOM_scanset. New functions
579 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
580 ZOOM_scanset_destroy.
582 New ZOOM function, ZOOM_connection_last_event, that returns type
583 of last event (such as "receive data", "send data", "apdu received",
586 New ZOOM option, schema, that specifies schema for retrieval.
588 New CCL feature. Qualifiers can be aliases for one or more
589 other qualifiers (if more than one is given, OR is used).
591 ZOOM uses named result sets if target supports it.
593 Two new YAZ client commands: . (dot, which sources a script of YAZ
594 client commands), and ! (to execute shell command.). Implemented
597 Working on Debian packages.
601 YAZ client enables named result sets only if target supports it.
603 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
605 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
606 with key="host" to get same result.
608 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
609 Function Z3950_resultset_record(s) returns references to records
610 "owned" by resultset. To become owner use Z3950_record_clone.
612 Function z_ext_record handles Extended Services. Thanks to
617 CCL Parser fix: ignore token comma when dealing with and-lists.
619 Documentation updates for COMSTACK.
621 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
622 Changed prototype Z3950_records. For some functions, int parameters
623 were changed to size_t.
625 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
628 New MARC decode/display function, marc_display_exl, which properly rejects
629 non-ISO2709 records. YAZ client uses it.
633 Fix bug: local attribute set wasn't set correctly in PQF strings.
637 * Old Z39.50 codecs no longer supported.
639 Added ZOOM C binding. See http://zoom.z3950.org/
641 Renamed states for COMSTACKs to avoid confusion with events.
643 Implemented cs_look and proper cs_rcvconnect.
645 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
647 Configure detects POSIX threads on OpenBSD.
649 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
650 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
652 When error is returned from present handler, non-surrogate diagnostic
653 is returned in present response (and fetch handler is no longer called).
655 * Minor adjustments to pquery parser (PQF). Token characters may be
656 escaped by using backslash (C-style).
658 PQF parser allows string attribute values to be specified. For @attr,
659 non-numeric characters after the equal-sign are treated as strings
660 (e.g. @attr 9=title).
662 CCL trunction character may be defined (@truncation in file)
664 * function zget_ExtendedServicesRequest sets waitAction to
665 waitIfPossible (was wait).
667 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
670 CCL operator names may be set in field definition files (CCL_bibset).
671 See ccl/bib1 for an example.
673 Fixes in ASN.1 compiler for C++ compatibility.
675 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
676 and "op_or" to avoid conflict with C++.
678 Fixed problem with GNU readline detection on Redhat 7.0.
680 Added step-size for Scan backend handler.
682 Fixed bug that made the frontend server crash when no attribute
683 set was specified for scan.
685 Front-end server automatically switches to original working directory
686 when installed as an NT service. Previously -w had to be specified to
689 Added extended attributes for retrieval module (data1), so that data1
690 records carry d1_readXML/SGML attributes. d1_read also supports
691 null-data rules ( <tag/>)
693 On UNIX when POSIX threads are available, a separate library libyazthread
694 is created. Programmers should link with that library and the yaz library
695 when using threads. The reason for the split was that some applications
696 on Linux, such as Apache, doesn't work well when using shared objects that
699 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
700 (or any frontend server) in SSL mode by specifying ssl: followed by
701 address. Only tested on UNIX.
703 Added feature for CCL module. Virtual structure s=al or s=ol generates
704 and-list and or-list respectively instead of phrase search.
708 * Added prefix "yaz_" for the functions log_init.., log_file.. and
709 log_mask_str. This was done to avoid name conflicts with other libraries
710 (such as other PHP extensions).
712 Added raw OID member for preferred record syntax (request_format_raw)
713 and returned record syntax (output_format_raw) for backend fetch method.
715 Config file yaz-config now accepts options so that it returns specific
716 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
718 Shared library support for UNIX using GNU libtool.
720 * Modified backend interface. Request/Response struct's replaced by
721 one read/write C struct. For example bend_fetchrequest and
722 bend_fetchresult have been replaced by single bend_fetch_rr struct.
723 Every handler - even search has to be registered in bend_init
724 handler. This means that the YAZ library no longer refers to
725 external functions and it makes it possible to make the whole
726 thing a single DLL/SO.
728 Added Segment handler for backend server.
730 Added Zmbol/Zebra administrative functions to YAZ client.
732 Threaded frontend server on UNIX (when POSIX Threads are available).
733 Starting the server with option -T enables multi-threading.
737 Added configure option --enable-comp/disable-comp to control use
738 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
739 located in sub directory asn.
741 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
742 in ${exec_prefix}/bin along with the other programs yaz-client and
745 GNU automake used to maintain makefiles.
749 Changed retrieval module so that we can load records with no abstract
750 syntax defined. Tagpaths in these records are fully composed of string
753 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
757 On UNIX, the generated makefile now supports a proper 'make install'.
758 The prefix can be set via GNU configure to set the install location
759 (default is /usr/local).
761 * YAZ programs client and ztest were renamed to yaz-client and
762 yaz-ztest to avoid conflicts when users install YAZ in "standard"
763 locations, such as /usr/bin,/usr/local/bin,etc.
765 * YAZ Header files were moved from include to include/yaz. YAZ Header
766 files are referred to as include <yaz/log.h> rather than <log.h>.
767 The YAZ include path (-I ..) is therefore the same as before. Programmers
768 should update their #include statements or use -Ipath/include/yaz
769 instead. The main motivation for doing this change is that YAZ header files
770 can be installed in "standard" locations /usr/include,/usr/local/include
771 without introducing conflicts, since ALL YAZ header files are stored
772 in subdirectory yaz (under /usr/include for example).
774 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
775 rather than project/workspace files. We switched because project files
776 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
779 Changed name of logging function, logf, to yaz_log, to prevent name
780 clash with some math-log functions. The YAZ header log.h defines logf
781 to yaz_log (#define) so there should be no incompatibilities by this
784 Added bend_start/bend_stop handlers for server. These handler are
785 called on start/stop of server. For windows they are called whenever
786 a service is started/stopped.
788 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
789 a fairly small ASN.1 compiler written in Tcl. The compiler is located
790 in util/yc.tcl. The auto-generated C code structures are, in a few
791 cases, incompatible with the old decoders. There are differences in the
792 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
793 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
794 The preprocessor variable ASN_COMPILED is defined when the compiled
795 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
796 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
797 wish to use the old encoders/decoders you can specify --disable-yc
800 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
801 version so that it supports both new - and old version of DB Update
803 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
804 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
805 change. The name parameter can be set to 0 in which no name is specified
806 for the construction. The macros odr_implicit and odr_explicit sets name
807 parameter to zero for the construction involved. New macros
808 odr_implicit_tag and odr_explicit_tag are similar to the others,
809 except that a name parameter is added. For programmers' that don't use
810 ODR they probably only need to change the call to z_APDU and z_External.
812 Added access control facility by interfacing the TCP wrapper library.
813 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
814 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
815 name of the daemon and enables the access control as specified in
816 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
818 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
819 den Dool <H.M.vdnDool@kub.nl>.
821 Added reference ID parameter to most functions in server API - refer
822 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
824 Changed name of ccl library to libccl.a (was ccl.a).
826 Fixed bug in decoder for Explain (Category TargetInfo).
828 Added support for GNU readline in client. Thanks to Jacob Poulsen
829 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
831 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
832 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
833 IMPLEMENTATION! This change was made to the development version before
834 the ZIG decided to retract the amendment. If any users MUST be
835 compatible with the original Update definition, PLEASE CONTACT US, and
836 we will include a separate definition corresponding to the old Update
837 ES. Note that because of the change to the ASN.1 of the
838 TaskPackageRecordStructure we cannot define a single structure that
839 will support both versions.
841 * Added const modifier to buffer parameter for some ODR/BER encoding
842 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
843 completeWAIS, odr_dumpBER.
845 Fixed bug in client.c which caused a crash when a scanResponse didn't
846 contain positionOfTerm.
848 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
849 * will cause an error in a client if a non-YAZ target sends both a
850 * list of Scan entries and non-surrogate diagnostics.
852 Retrieval module enhancements. Tag sets may be typed in the reference
853 to it. From the .abs-file the "tagset" directive takes a third optional
854 integer type for the tag set referenced. From a .tag-file the "include"
855 directive takes a third optional type as well. The old "type" directive
856 in the tag set itself is still recognized but acts as the default type
859 Backend interface change. Individual Scan terms returned from bend_scan
860 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
861 in include/backend.h.
863 Retrieval module enhancements. Multiple tag sets and attribute sets may
864 be specified in abstract syntax specs. Revised the error/warning for
865 logging messages reported by the retrieval module when reading the
868 Object Identifier system (oid_..) changed. The API is backwards
869 compatible but the oid-routines now allocates new OID's when needed.
870 Raw OID's may be specified in oid_getvalbyname.
872 YAZ now uses GNU configure to generate Makefile(s).
874 * Minor changes in some of the member names of DeleteResultSetRequest and
875 DeleteResultSetResponse. See include/proto.h.
877 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
878 and added member 'languages' in TargetInfo (which was missing).
880 Changed the way attribute sets are handled in the retrieval
881 module. These are now cached, just like the abstract syntaxes
884 Changed YAZ so that it links with compiled ASN.1.
886 Added Explain-schema definitions and mapping routines. The following
887 Explain categories have been implemented: AttributeDetails,
888 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
890 Fixed minor bug in Windows version of Server Library.
892 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
894 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
896 Added EXTERNAL: UNIverse Resource Report (non-standard).
898 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
899 ENUMERATED and SET OF.
901 * Added 'const' to some of the char pointer arguments for the
902 functions, data1_read_node, data1_getelementbytagname,
903 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
906 Fixed bug in data1_insert_taggeddata - the last_child member of
907 parent wasn't initialised.
909 * Changed data1_read_record and data1_read_node so that the supplied
910 "SGML"-buffer is read-only. In particular the resulting data1 - tree
911 doesn't refer to any parts of the "SGML"-buffer.
913 Fixed bug in server library (Windows version of statserv_remove).
915 * Changed code so that it compiles as C++. The type definition
916 of Odr_fun which is a member of Odr_arm was changed. The result is,
917 that an explicit typecast is needed for the fun pointer when
918 using Odr_arm - as in:
919 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
921 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
923 Implemented the new structured date and time definition as approved
924 by the ZIG. Added schemaId element to the specificTag in Espec-1
925 (also approved at the last ZIG). Thanks to RVDM.
927 Added some Object identifiers (RVDM).
929 Changed the Update Extended Service (RVDM).
931 Added command "refid" to client which specifies referenceId for
932 the following requests.
934 Implemented extended service handling for server. See ztest.c
935 for an example as well as backend.h. New handlers are registerd
938 * Changed interface for sort in server.
940 Added new members to statserv_options_block. It allows a server
941 to read options from another source than just the command line. Thanks
942 to Charles Woodfield.
944 * Changed definition of Z_Triple in file prt-grs.h - member boolean
945 renamed to zboolean. Some C++ compilers complained about the name.
947 Minor changes to gils.abs. Added index 's' (sort) on title
948 and date/time-last-modified.
952 Fixed bug in server library regarding inetd mode (-i). This bug
953 was introduced by release 1.4.
957 Added sort facility in client and backend server interface.
959 Fixed problem with dependencies in Makefile(s).
961 Fixed bugs for encoders/decoders of extended services and
964 Implemented sub-tree feature for schemas. Sub-trees are
965 referenced in *.abs-files. See explain.abs for an example
966 of the use of this feature.
968 Modified bib1.att; local attributes for ANY didn't include
969 ANY itself (only affects use of the retrieval module).
971 Fixed bug in plain SGML reader in function data1_read_node:
972 tags with prefix "var" was incorrectly interpreted as variants.
974 Added feature "sub-schemas" to enable references to - and definitions
975 of - group of elements.
977 * Removed member parent from type data1_element (in data1.h).
979 Implemented function odr_nullval() that returns the value of
982 * Removed member num_children from data1_node (in data1.h).
984 Made NT service interface part of the server library. The
985 function statserv_main uses the NT service when required and
986 calls the statserv_start / statserv_close routines.
988 Routine zget_SearchRequest and zget_PresentRequest fills
989 resultSetName/Id member with "default" instead of "Default".
991 Fixed memory leak in server. Request queue member wasn't freed.
993 Fixed nmem_exit so that memory is freed.
997 Revised the CCL parser utility to be thread safe.
999 Added function, oid_ent_to_oid, to replace the function
1000 oid_getoidbyent, which is not thread safe.
1002 * Added nmem_init and nmem_exit to initialize and release
1003 NMEM resources. Function nmem_init should be called once in the
1004 initial thread before NMEM/ODR is used. statserv.c and client.c
1005 have been changed accordingly. The change was necessary to make
1006 NMEM thread safe. The NMEM memory pool is shared amongst threads
1007 in a process. Unix-based applications will still work fine without
1010 Added NT Services interface for the the Z39.50 (statserv) Server.
1011 Refer to the ztest.c source on the usage.
1013 Windows 95/NT port using MSVC5.0. Project files are included in the
1016 * Defined new 'global' handle for the retrieval (data1) system. The
1017 new handled, data1_handle, describes the state of the data1 system.
1018 This handle is passed as first argument to virtually all
1019 data1 related routines. The functions data1_create and data1_destroy
1020 creates and destroys a data1 handle respectively.
1022 Added ODR encode stream member to all backend request structures
1023 init, search, scan etc. This stream should be used to allocate all
1024 memory used for the response when thread safe operation is needed.
1026 Changed the comstack utility, cs_addstr, to be thread safe. The
1027 returned hostname string returned by the function is now part the
1030 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1031 function. The cs_straddr takes a COMSTACK handle as argument, so this
1032 function must be used after cs_create and before bind/connect.
1033 This function is thread safe.
1035 Moved test server to 'ztest' directory - generic server code still
1036 in 'server' directory.
1038 Made prefix query (pquery.c) utility thread safe.
1040 Added new function modifier YAZ_EXPORT to 'export' public DLL
1041 functions when using windows (see include/yconfig.h).
1043 Added definitions to the OID database (util/oid.c) (RVDM).
1045 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1047 Added call to ccl_rpn_delete in client program.
1049 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1050 release of RPN structure.
1052 Added support for C++, headers uses extern "C" for public definitions.
1053 With input from RVDM.
1055 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1056 Thanks to Ronald van der Meer (RVDM).
1058 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1060 Added support for private extensions to the OID database
1061 (oid_setprivateoids()). Thanks to RVDM.
1063 Added optional, physical ANY (key replication)
1065 Fixed null-reference problem in GRS-1 output filter.
1067 Proximity operator added to Prefix Query Format (PQF).
1069 In test client command "base" accepts multiple databases.
1071 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1075 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1077 Smallish bug-fixes in the new encoders/decoders (explain).
1079 Bug fixed in DeleteRequest.
1081 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1083 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1085 Added SOIF syntax (using private OID for now) to retrieval module and client.
1087 Added Update extended service.
1089 Added SearchResult-1 additional info structure.
1091 Added optional CCL (ISO8777) interpreter as separate module. Available
1094 --- 1.2 1996/6/10 (1st anniversary release)
1096 Added Summary record syntax. Lightly tested.
1098 Added OPAC record syntax. Untested.
1100 Added ResourceReport service encoders/decoders. Untested.
1102 Fixed bug in z_Unit - wrong tagging on unitSystem.
1104 Fixed bug in the DiagRecs decoder.
1106 Added options for max PDU size and session timeout to frontend-server.
1108 Added documentation of query-language parsers and other supporting utilities.
1110 [frontend-server] Added Attribute set to the bend_scanrequest API.
1112 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1113 surrogate diagnostics were generated.
1115 [retrieval] Allow multiple local values for attribute.
1117 [retrieval] Allow multiple attributes per element in .abs files. index type.
1119 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1121 --- 1.1pl2 1996/4/10
1123 Minor changes, mostly specific to Zebra's requirements (retrieval)
1127 Repaired bug in frontend server when running multiple listening
1128 endpoints in dynamic mode.
1130 z_External() now won't break if a known, ASN.1 value comes encapsulated
1131 in an octet-string. The value will pass through unmodified in an Odr_oct.
1133 Added a bit of code to the demo client to decode & display
1134 ASN.1-structured records represented in the octet-aligned branch of
1135 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1137 Added z_ext_getentbyref() to the ASN module. Doc updated.
1139 * Completed the SCAN definition in the ASN module. This may break SCAN
1140 code based on older YAZ-versions at compile-time. The fix is easy -
1143 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1144 under the SCAN definition. Remember to initialize this, server-people.
1146 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1147 that this does not extend to ODR and ASN.
1149 Comstack allows insertion of established socket (primarily for
1150 inetd-operation of servers). Doc updated.
1152 Front-end server can now start from the inetd in TCP mode. Doc
1155 --- 1.0pl4 1996/1/24
1159 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1160 the rank and record number.
1162 Adjustments to the frontend server.
1164 Fixed diagnostic BER dumper. It ignored the file argument.
1168 Various changes to retrieval module.
1170 Changed the union discriminators of the protocol files from enums to
1171 ints paired with #defines.
1173 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1176 *Changed operator in the RPN structure to 'roperator', again to avoid a
1179 Fixed problems in Explain decoders/encoders.
1181 --- 1.0pl2 1995/12/6
1183 Memory bug in log module fixed.
1185 --- 1.0pl1 1995/12/5
1187 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1189 Bug in Explain DatabaseInfo module fixed.
1191 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1195 The shift to v1.0 signals that we now consider the *core* functionality
1196 of YAZ reasonably stable (the core being more or less equivalent to
1197 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1198 tested (Explain not at all - though that will happen soonish).
1200 Minor changes to code to support Windows port.
1202 Various minor changes after we're getting to use GRS-1 & co. more.
1204 Added Espec-1 format.
1206 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1207 of the protocol and it cannot be selected when encoding (maps into 'string'
1208 when decoding). Needed to talk to some servers.
1210 Demo client can request simple element set names.
1212 Added Diagnostic Format encoders/decoders.
1214 Added simple Close handling to frontend server (no hooks for resource
1215 reporting yet), and demonstration client.
1217 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1219 --- 1.0b3 1995/08/24
1221 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1222 handled incorrectly when records were requested in the searchResponse. This
1223 will only affect you if you use the frontend-server.
1225 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1226 Test-client will ask for and print GRS1. Ztest will return dummy records
1229 Added Explain encoders/decoders to the service-level API. Untested.
1231 Added Extended Services: Item Order encoders and decoders to the Service-
1232 level API. Untested. We could use a recent copy of the pertinent bits
1233 of the ILL protocol to add those bits.
1235 Added diagnostic format 1 encoders/decoders to the service-level API.
1238 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1239 odr_cons.c, which causes a more correct output.
1241 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1242 was always set to 0 when no records were requested in the searchRequest.
1244 * Added better external-handling. This shouldn't harm old code that
1245 *encodes* externals. It can break code that looks for a
1246 'single-ASN1-type' representation, since those types that are known
1247 are now decoded immediately. Look at the SUTRS sample code in
1248 seshigh.c and client.c. Documentation updated.
1250 Handling of structured records in bend_fetchresponse. Length -1 marks
1251 structured record, type is deduced from format field.
1253 --- 1.0b2 1995/06/27
1254 Fairly quick maintenance release to add SUTRS support.
1256 Fixed handling of SUTRS records in the demonstration client.
1258 * Added format field to the bend_fetchrequest and bend_fetchresponce
1259 structures of the backend API (frontend server). When the record is
1260 returned, the value of the format field is mapped to an OID. The
1261 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1262 of the record. The special value VAL_NONE in the bend_request means
1263 that no specific format was requested by the client. Documentation
1264 updated accordingly. Test server (ztest) will return a fixed dummy
1265 SUTRS record if your client requests SUTRS.
1267 Documentation updated accordingly.
1269 You can now set external libraries and RANLIB support in the top-level
1273 First public release.