1 Possible compatibility problems with earlier versions marked with '*'.
5 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
8 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
10 Added option -p <file> to make Generic Frontend Server to write PID file.
12 Added option -D to put Generic Frontend Server in background on its own.
14 Make ZOOM C recognize option "password". If unset, "pass" is used
15 (for backwards compatibility).
17 Fixed a bug in Generic Frontend Server that could make it crash if a
18 client sets characterSetNegotation bit, but didn't pass negotiation stuff
21 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
22 Must be issued before open, in order to be in effect.
24 --- 2.0.9-6 2004/01/12 Debian/Windows
26 Make the SRU server more picky WRT unknown params, etc.
28 Bug fix: ZOOM scan response didn't return displayTerm - when present.
30 New YAZ client command, options, that sets Z39.50 options.
32 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
33 options from a string of tokens (one token for each option bit).
35 Update SRW diagnostic code messages.
37 --- 2.0.9-5 2004/01/07 Debian/Windows
39 Handle user defined stylesheet for SRW/SRU.
41 --- 2.0.9-4 2004/01/06 Debian/Windows
43 Fix bug in decoding of Content-Length.
45 --- 2.0.9-3 2004/01/06 Debian/Windows
47 Fix a bug with decoding of XML packed records.
49 --- 2.0.9-2 2004/01/05 Debian only
51 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
53 Fix bug in SRW/SRU diagnostics decoding.
57 Fixed bug in Generic Frontend Server which could drop records exceeding
58 preferred message size. Reported and fixed by Irina Dijour.
60 Fixed calculation of package size for structured records in Generic
61 Frontend Server. Reported and fixed by Irina Dijour.
63 Fixed namespace for SRW/SRU diagnostics.
65 Fixed SEGV in yaz-client that occured for HTTP connection errors.
69 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
70 this version is incompatible with version 1.0 and older YAZ SRW/SRU
73 CQL changes to reflect recent changes to the specification:
74 * Documentation talks about context sets instead of index sets.
75 * Documentation talks about indexes instead of qualifiers.
76 * The CQL-to-PQF transformer's configuration file now uses
77 "index.set.name = <attributes>" instead of the old form
78 "qualifier.set.name = <attributes>". (Both forms are still
79 understood but the latter is deprecated.)
80 * CQL terms with no explicit index specified are now interpreted as
81 cql.serverChoice instead of srw.serverChoice (which of course
82 behaves exactly the same.)
86 MARC conversion can now generate ISO2709 output in another
87 character set. yaz-marcdump uses this facility if you invoke it
90 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
91 functions from there can be used from C++.
95 Frontend server now transfers memory from decoded packages to stream
98 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
99 references to show up.
101 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
102 the ZOOM Abstract API. The older names for the same options are still
103 also supported for the benefit of old applications.
105 ZOOM-C supports "implementationId" and "implementationVersion" options
106 to go along with "implementationName". These allow the user code to
107 specify identification strings to be sent to servers.
108 Add OID for the new ExtLite attribute set.
110 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
111 as requested/supplid by Ere Maijala <ere@atp.fi>
113 For generic frontend server, reverse the order of
114 "toolkit-supplied / application-supplied" strings sent as implementationId,
115 Name and Version. Also, remove the spaces around the slash. This brings
116 the GFS in line with the behaviour of ZOOM-C on the client side.
118 Add function ZOOM_scanset_display_term.
120 yaz-client shows scan displayTerm if present.
122 Utility yaz-iconv is now installed by default along with the man page
125 Extend configure check for OpenSSL to use pkg-config where available (such
128 Incorporate patch by Morten Bogeskov which allows a Unix file socket
129 server to specify uid/gid/mask for socket using the format
130 unix:[user=uid,][group=gid,][umask=mask,]file=path
131 If file= is omitted the existing format is assumed, e.g.
133 in which case the mask is 0666 (rw for everybody).
135 Major restructure of YAZ source. All source in libyaz is in src directory.
136 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
137 util (utility programs such as ASN.1 compiler, yaz-marcdump).
139 Added man page for utility yaz-marcdump (used to be called marcdump).
140 yaz-marcdump is installed by 'make install'.
142 Fixed a memory leak in Generic Frontend Server that occurred when decoding
143 of incoming package failed.
145 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
147 Change prototype of odr_perror: add const to message string.
149 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
151 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
152 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
153 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
154 DNS lookup. There should not be any compatibility problems with this
155 assuming that blocking=1 or 0 is used.
157 Fix bad reference in UNIX comstack in function cs_addrstr.
159 Fix for compilation on AIX.
161 The generic front-end server (server/seshigh.c) now supports returning
162 Init diagnostics to the client in User-information-field, in
163 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
168 Allow any CQL relation (not just all,any,exact,scr).
170 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
171 that features the same UI.
173 Implemented command update0 in YAZ client which is equivalent to
174 update but uses old of Ext Update ASN.1.
176 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
177 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
178 Previously no OID was used for this info.
180 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
181 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
182 returns 'malformed search term' otherwise.
184 SortResponse member resultCount now set to NULL in sort handler of
187 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
190 Add three new utility functions for translating OIDs between various
191 formats -- symbolic name such as "Usmarc", minus-1-terminated int
192 arrays and dotted strings such as "1.2.840.10003.9.5.1":
193 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
194 char *oid_to_dotstring(const int *oid, char *oidbuf);
195 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
197 Reverted modifications for ES Update definition for z_IU0Update
198 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
199 is back to YAZ 2.0.2.
201 String value attributes for CCL parser.
203 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
204 which their FirstSearch server returns in Init responses, sometimes
205 carrying useful diagnostic information when Init fails. This has the
206 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
207 "z39.50/oclcui.asn", where its definition is somewhat different from
208 what OCLC document on their web-site, as required to interoperate with
211 Support for anonymous authentication in yaz-client. Use the command
214 * Fix the OID of the Index Data-local "admin" Extended Service from
215 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
216 the 1000, which indicates a locally-defined OID, was a mistake.
220 Fix CCL directive @case handling so that it affects string match for
221 both CCL keywords and qualifiers.
223 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
224 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
225 Decoder has been updated with ASN.1 changes as listed in
226 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
227 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
228 z_IUUpdate, remains unchanged.
230 ZOOM_record_get may now return a record in a specific character set.
231 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
232 "from" is the character set of record as returned by target. "to" is
233 the character set to be returned. If omitted, "to" is UTF-8.
235 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
237 New ODR utility, odr_getelement, which returns name of element for
238 which encoding/decoding failed.
240 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
241 in cases where a required element was omitted.
243 Bug fix: some MARC8 sequences were not converted.
245 New ZOOM option "step" which specifies number of records to be
246 retrieved in one chunk. Used in conjunction with "start" and "count".
248 SRW support for yaz-client. Use scheme http: to use it, e.g.
251 yaz-client no longer does (un)intelligent character set conversions
252 by default. Can be enabled with charset and marc_charset commands.
254 xmalloc trace fix for 64-bit systems such as DEC alpha.
256 Solaris 2.6 compile fix.
258 New function, cql_strerror() translates SRW error codes, as returned
259 by cql_transform_error(), into human-readable English strings. Used
260 in yaz-client diagnostics when appropriate.
262 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
263 converts it into a type-1 query which is sent to the server. This
264 makes CQL available for use with all Z-servers, as opposed to the tiny
265 minority that can handle CQL queries themselves.
269 New Debian package layout similar to the Redhat Package layout.
271 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
272 and search result respectively.
276 Redhat package is now several packages: libyaz (runtime libraries),
277 libyaz-devel (development and documentation, and yaz (utility programs).
278 Package spec file by Morten Bøgeskov.
280 New member 'schema' in struct bend_fetch_rr which the name of requested
281 schema (SRW/SRU) for record (or NULL if none was given). The fetch
282 handler MAY set this to reflect the schema of the returned record.
284 New member 'display_term' in struct scan_entry. GFS now sets member entries
285 and allocates scan entries to be filled by user scan handler. In previous
286 version, entries member was allocated by the scan handler. That still works,
287 but the GFS will ignore member display_term - assuming it was NOT set by
288 the handler. The fact that the GFS now allocates the entries both allows
289 for new members and makes a scan handler easier to write.
291 Fix CQL lex buffer overflow.
293 SRW/SRU recordPacking. For SRW default recordPacking is string. For
294 SRU default recordPacking is string.
296 SRU protocol support for frontend server.
298 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
300 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
302 Added scan for the ZOOM shell (zoomsh).
306 * String Identifers for Schemas (Amendment 5).
307 http://lcweb.loc.gov/z3950/agency/amend/am5.html
308 Old definition for schema
309 Odr_oid *schema; /* OPT */
314 Z_InternationalString *uri;
315 #define Z_Schema_oid 1
316 #define Z_Schema_uri 2
319 * resultCount parameter to Sort Response (Amendment 1).
320 http://lcweb.loc.gov/z3950/agency/amend/am1.html
322 Support for SRW 1.0 over HTTP. This is an optional feature and
323 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
326 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
327 on the same port. SRW SearchRetrieveRequests are mapped
328 to bend_init,bend_search,bend_fetch,bend_close.
330 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
332 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
333 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
335 ZOOM connections are SRW based if schem http is used for hostname
336 in connect, e.g. z = ZOOM_connection_new("http://myserver");
337 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
339 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
340 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
341 distance=n, order=true/false, relation=le, prox unit=word. If
342 n is omitted, distance 1 is used.
344 Fixed problem with C compiler include path in wrong order.
346 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
347 on Solaris. Patch from Ko van der Sloot.
349 New MARC decode API. All new functions operate on a yaz_marc_t
350 handle. The most important new functions are: yaz_marc_create,
351 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
352 decode and destroy respectively. Decoder can produce formats
353 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
354 include/yaz/marcdisp.h.
356 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
357 to UTF-8, UCS-32, wchar_t or Latin-1.
359 * Prototypes for yaz_iconv_-functions moved to separate header
360 include/yaz/yaz-iconv.h.
362 Make a few private functions 'static' in unix.c. This prevents
363 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
365 For ZOOM connection, the options targetImplementation{Id,Name,Version}
366 are set when Init Response is received.
368 New function ZOOM_connection_error_x similar to ZOOM_connection_error
369 but returns diagnostic set as well.
371 New function yaz_strerror which is a portable wrapper for
372 strerror/strerror_r/GetLastMessage.
374 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
375 is returned for MARC. If type is "oai", then OAI MARC is returned.
377 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
382 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
384 Fix bad race conditions on SIGTERM and terminate gracefully in
387 Move retrieval (data1) module to Zebra since nobody seems to be
390 Add GRS-1 render for ZOOM using same format as yaz-client.
394 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
396 Fix broken ESpec handling in data1 module.
398 SGML reader parses comments and makes them part of the data1 tree.
400 Added several type casts so that YAZ compiles as C++ code.
402 ZOOM didn't handle PDU encoding failures properly.
404 Added more Bib-1 diagnostics (approved extensions).
406 GNU configure: better check for iconv.
408 More portable use of accept, getpeername. Check for socklen_t. Use
409 int/size_t if socklen_t is not defined.
413 PQF parser rejects bad queries - including those with extra
414 characters in them. PQF parser used to silently ignore that.
415 Cleaner API for PQF added, which allows you to get detailed
416 error information for bad queries (see yaz/pquery.h).
418 Fixed bug in ZOOM_record_get for type "database".
420 Implemented mini iconv library supporting conversions between
421 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
423 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
427 Fixed ZOOM C record cache so that preferredRecordSyntax and
428 elementSetName is used to check for already fetched records.
432 Added three members in bend_initrequest structure to facilitate
433 character set negotiation.
435 Fixed a bug in frontend server that could cause indefinite
436 loops under rare conditions.
438 Revised character set utilities (charneg.h) so that encoding
439 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
441 For PQF, directive @term <type> sets term type for Scan/Search.
442 Here <type> is general, string, numeric, null. The term type
443 is inherited - just like @attr.
445 New call odr_set_charset that sets character set conversion for
446 international-strings on a ODR stream. Prototype is:
447 int odr_set_charset(ODR o, const char *to, const char *from);
448 The InternationalString is still represented as C string in YAZ
449 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
450 won't). On the protocol level, you can use any encoding.
452 Support for UNIX sockets in ZOOM.
454 Solaris recv sometimes returns errno == ENOENT. It is treated as
455 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
457 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
458 both client and server. Code by Morten Bøgeskov.
462 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
463 that they can be used directly from Visual Basic. You must recompile
464 your windows APP if you're using ZOOM.
466 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
467 Commands "lang" and "charset" sets language and character set respectively.
468 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
469 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
471 Attributes from multiple CCL fields may be OR'ed rather than merged
472 using directive "@field or". Fields are still merged by default -
473 equivalent to "@field merge".
475 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
478 Fixed bug in zget for parameter ExtendedServicesResponse.
484 Added PQF feature: '@attr type=value' may be written as '@type=value'.
486 Client displays USR.1:SearchResult-1 (hits per term).
488 Additional Search Info for search in Generic Frontend Server.
490 Fixed CCL parsing of "field=s".
492 WIN32 installer - using the excellent NSIS software from nullsoft.
494 Fixed CCL parsing of "field = - <number>".
496 Added function yaz_marc_decode that decodes MARC for line mode
497 display or XML (similar to that used by JZKit).
499 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
500 Z39.50. But ISO/ILL was, however.
502 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
503 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
505 http://lcweb.loc.gov/z3950/agency/amend/am2.html
506 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
510 New YAZ client features: Command completion and new commands:
511 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
512 Code provided by Jacob Poulsen.
514 New call oid_trav, that visits all registered OIDs via callback.
516 Function ZOOM_record_get now returns const char pointer rather than
517 void pointer. It saves a lot of type casts.
519 For YAZ client, command "auth" now allows you to set authentication
520 in IdPass style. It is enabled when three tokens are given - order
521 is user, group and password.
523 Fix memory leaks in MARC record handling for ZOOM.
525 New option for YAZ client, -k <kilobytes> that sets
526 maximum record size. Similar to -k option for generic frontend
527 server and yaz-ztest.
529 More fixes for scan. Non-zero stepSize handled. OID's fixes.
531 Prefix query parser reports "fail" when bad attribute set is given.
533 Fix in MARC decoder. Proximity logging. Fix for attribute set
534 in scan handler for server. Patches by Shigeru Ishida.
536 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
539 Configure option --with-openssl=<dir> now works when a directory is
540 specified. Patch provided by Morten Bøgeskov.
542 New option for YAZ client, -u <auth>, that sets authentication.
544 ZOOM fix: error information was sometimes "missing", since error
545 was cleared/reset too when it shouldn't.
547 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
551 Scan for ZOOM API. New object ZOOM_scanset. New functions
552 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
553 ZOOM_scanset_destroy.
555 New ZOOM function, ZOOM_connection_last_event, that returns type
556 of last event (such as "receive data", "send data", "apdu received",
559 New ZOOM option, schema, that specifies schema for retrieval.
561 New CCL feature. Qualifiers can be aliases for one or more
562 other qualifiers (if more than one is given, OR is used).
564 ZOOM uses named result sets if target supports it.
566 Two new YAZ client commands: . (dot, which sources a script of YAZ
567 client commands), and ! (to execute shell command.). Implemented
570 Working on Debian packages.
574 YAZ client enables named result sets only if target supports it.
576 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
578 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
579 with key="host" to get same result.
581 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
582 Function Z3950_resultset_record(s) returns references to records
583 "owned" by resultset. To become owner use Z3950_record_clone.
585 Function z_ext_record handles Extended Services. Thanks to
590 CCL Parser fix: ignore token comma when dealing with and-lists.
592 Documentation updates for COMSTACK.
594 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
595 Changed prototype Z3950_records. For some functions, int parameters
596 were changed to size_t.
598 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
601 New MARC decode/display function, marc_display_exl, which properly rejects
602 non-ISO2709 records. YAZ client uses it.
606 Fix bug: local attribute set wasn't set correctly in PQF strings.
610 * Old Z39.50 codecs no longer supported.
612 Added ZOOM C binding. See http://zoom.z3950.org/
614 Renamed states for COMSTACKs to avoid confusion with events.
616 Implemented cs_look and proper cs_rcvconnect.
618 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
620 Configure detects POSIX threads on OpenBSD.
622 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
623 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
625 When error is returned from present handler, non-surrogate diagnostic
626 is returned in present response (and fetch handler is no longer called).
628 * Minor adjustments to pquery parser (PQF). Token characters may be
629 escaped by using backslash (C-style).
631 PQF parser allows string attribute values to be specified. For @attr,
632 non-numeric characters after the equal-sign are treated as strings
633 (e.g. @attr 9=title).
635 CCL trunction character may be defined (@truncation in file)
637 * function zget_ExtendedServicesRequest sets waitAction to
638 waitIfPossible (was wait).
640 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
643 CCL operator names may be set in field definition files (CCL_bibset).
644 See ccl/bib1 for an example.
646 Fixes in ASN.1 compiler for C++ compatibility.
648 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
649 and "op_or" to avoid conflict with C++.
651 Fixed problem with GNU readline detection on Redhat 7.0.
653 Added step-size for Scan backend handler.
655 Fixed bug that made the frontend server crash when no attribute
656 set was specified for scan.
658 Front-end server automatically switches to original working directory
659 when installed as an NT service. Previously -w had to be specified to
662 Added extended attributes for retrieval module (data1), so that data1
663 records carry d1_readXML/SGML attributes. d1_read also supports
664 null-data rules ( <tag/>)
666 On UNIX when POSIX threads are available, a separate library libyazthread
667 is created. Programmers should link with that library and the yaz library
668 when using threads. The reason for the split was that some applications
669 on Linux, such as Apache, doesn't work well when using shared objects that
672 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
673 (or any frontend server) in SSL mode by specifying ssl: followed by
674 address. Only tested on UNIX.
676 Added feature for CCL module. Virtual structure s=al or s=ol generates
677 and-list and or-list respectively instead of phrase search.
681 * Added prefix "yaz_" for the functions log_init.., log_file.. and
682 log_mask_str. This was done to avoid name conflicts with other libraries
683 (such as other PHP extensions).
685 Added raw OID member for preferred record syntax (request_format_raw)
686 and returned record syntax (output_format_raw) for backend fetch method.
688 Config file yaz-config now accepts options so that it returns specific
689 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
691 Shared library support for UNIX using GNU libtool.
693 * Modified backend interface. Request/Response struct's replaced by
694 one read/write C struct. For example bend_fetchrequest and
695 bend_fetchresult have been replaced by single bend_fetch_rr struct.
696 Every handler - even search has to be registered in bend_init
697 handler. This means that the YAZ library no longer refers to
698 external functions and it makes it possible to make the whole
699 thing a single DLL/SO.
701 Added Segment handler for backend server.
703 Added Zmbol/Zebra administrative functions to YAZ client.
705 Threaded frontend server on UNIX (when POSIX Threads are available).
706 Starting the server with option -T enables multi-threading.
710 Added configure option --enable-comp/disable-comp to control use
711 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
712 located in sub directory asn.
714 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
715 in ${exec_prefix}/bin along with the other programs yaz-client and
718 GNU automake used to maintain makefiles.
722 Changed retrieval module so that we can load records with no abstract
723 syntax defined. Tagpaths in these records are fully composed of string
726 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
730 On UNIX, the generated makefile now supports a proper 'make install'.
731 The prefix can be set via GNU configure to set the install location
732 (default is /usr/local).
734 * YAZ programs client and ztest were renamed to yaz-client and
735 yaz-ztest to avoid conflicts when users install YAZ in "standard"
736 locations, such as /usr/bin,/usr/local/bin,etc.
738 * YAZ Header files were moved from include to include/yaz. YAZ Header
739 files are referred to as include <yaz/log.h> rather than <log.h>.
740 The YAZ include path (-I ..) is therefore the same as before. Programmers
741 should update their #include statements or use -Ipath/include/yaz
742 instead. The main motivation for doing this change is that YAZ header files
743 can be installed in "standard" locations /usr/include,/usr/local/include
744 without introducing conflicts, since ALL YAZ header files are stored
745 in subdirectory yaz (under /usr/include for example).
747 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
748 rather than project/workspace files. We switched because project files
749 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
752 Changed name of logging function, logf, to yaz_log, to prevent name
753 clash with some math-log functions. The YAZ header log.h defines logf
754 to yaz_log (#define) so there should be no incompatibilities by this
757 Added bend_start/bend_stop handlers for server. These handler are
758 called on start/stop of server. For windows they are called whenever
759 a service is started/stopped.
761 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
762 a fairly small ASN.1 compiler written in Tcl. The compiler is located
763 in util/yc.tcl. The auto-generated C code structures are, in a few
764 cases, incompatible with the old decoders. There are differences in the
765 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
766 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
767 The preprocessor variable ASN_COMPILED is defined when the compiled
768 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
769 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
770 wish to use the old encoders/decoders you can specify --disable-yc
773 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
774 version so that it supports both new - and old version of DB Update
776 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
777 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
778 change. The name parameter can be set to 0 in which no name is specified
779 for the construction. The macros odr_implicit and odr_explicit sets name
780 parameter to zero for the construction involved. New macros
781 odr_implicit_tag and odr_explicit_tag are similar to the others,
782 except that a name parameter is added. For programmers' that don't use
783 ODR they probably only need to change the call to z_APDU and z_External.
785 Added access control facility by interfacing the TCP wrapper library.
786 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
787 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
788 name of the daemon and enables the access control as specified in
789 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
791 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
792 den Dool <H.M.vdnDool@kub.nl>.
794 Added reference ID parameter to most functions in server API - refer
795 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
797 Changed name of ccl library to libccl.a (was ccl.a).
799 Fixed bug in decoder for Explain (Category TargetInfo).
801 Added support for GNU readline in client. Thanks to Jacob Poulsen
802 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
804 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
805 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
806 IMPLEMENTATION! This change was made to the development version before
807 the ZIG decided to retract the amendment. If any users MUST be
808 compatible with the original Update definition, PLEASE CONTACT US, and
809 we will include a separate definition corresponding to the old Update
810 ES. Note that because of the change to the ASN.1 of the
811 TaskPackageRecordStructure we cannot define a single structure that
812 will support both versions.
814 * Added const modifier to buffer parameter for some ODR/BER encoding
815 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
816 completeWAIS, odr_dumpBER.
818 Fixed bug in client.c which caused a crash when a scanResponse didn't
819 contain positionOfTerm.
821 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
822 * will cause an error in a client if a non-YAZ target sends both a
823 * list of Scan entries and non-surrogate diagnostics.
825 Retrieval module enhancements. Tag sets may be typed in the reference
826 to it. From the .abs-file the "tagset" directive takes a third optional
827 integer type for the tag set referenced. From a .tag-file the "include"
828 directive takes a third optional type as well. The old "type" directive
829 in the tag set itself is still recognized but acts as the default type
832 Backend interface change. Individual Scan terms returned from bend_scan
833 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
834 in include/backend.h.
836 Retrieval module enhancements. Multiple tag sets and attribute sets may
837 be specified in abstract syntax specs. Revised the error/warning for
838 logging messages reported by the retrieval module when reading the
841 Object Identifier system (oid_..) changed. The API is backwards
842 compatible but the oid-routines now allocates new OID's when needed.
843 Raw OID's may be specified in oid_getvalbyname.
845 YAZ now uses GNU configure to generate Makefile(s).
847 * Minor changes in some of the member names of DeleteResultSetRequest and
848 DeleteResultSetResponse. See include/proto.h.
850 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
851 and added member 'languages' in TargetInfo (which was missing).
853 Changed the way attribute sets are handled in the retrieval
854 module. These are now cached, just like the abstract syntaxes
857 Changed YAZ so that it links with compiled ASN.1.
859 Added Explain-schema definitions and mapping routines. The following
860 Explain categories have been implemented: AttributeDetails,
861 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
863 Fixed minor bug in Windows version of Server Library.
865 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
867 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
869 Added EXTERNAL: UNIverse Resource Report (non-standard).
871 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
872 ENUMERATED and SET OF.
874 * Added 'const' to some of the char pointer arguments for the
875 functions, data1_read_node, data1_getelementbytagname,
876 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
879 Fixed bug in data1_insert_taggeddata - the last_child member of
880 parent wasn't initialised.
882 * Changed data1_read_record and data1_read_node so that the supplied
883 "SGML"-buffer is read-only. In particular the resulting data1 - tree
884 doesn't refer to any parts of the "SGML"-buffer.
886 Fixed bug in server library (Windows version of statserv_remove).
888 * Changed code so that it compiles as C++. The type definition
889 of Odr_fun which is a member of Odr_arm was changed. The result is,
890 that an explicit typecast is needed for the fun pointer when
891 using Odr_arm - as in:
892 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
894 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
896 Implemented the new structured date and time definition as approved
897 by the ZIG. Added schemaId element to the specificTag in Espec-1
898 (also approved at the last ZIG). Thanks to RVDM.
900 Added some Object identifiers (RVDM).
902 Changed the Update Extended Service (RVDM).
904 Added command "refid" to client which specifies referenceId for
905 the following requests.
907 Implemented extended service handling for server. See ztest.c
908 for an example as well as backend.h. New handlers are registerd
911 * Changed interface for sort in server.
913 Added new members to statserv_options_block. It allows a server
914 to read options from another source than just the command line. Thanks
915 to Charles Woodfield.
917 * Changed definition of Z_Triple in file prt-grs.h - member boolean
918 renamed to zboolean. Some C++ compilers complained about the name.
920 Minor changes to gils.abs. Added index 's' (sort) on title
921 and date/time-last-modified.
925 Fixed bug in server library regarding inetd mode (-i). This bug
926 was introduced by release 1.4.
930 Added sort facility in client and backend server interface.
932 Fixed problem with dependencies in Makefile(s).
934 Fixed bugs for encoders/decoders of extended services and
937 Implemented sub-tree feature for schemas. Sub-trees are
938 referenced in *.abs-files. See explain.abs for an example
939 of the use of this feature.
941 Modified bib1.att; local attributes for ANY didn't include
942 ANY itself (only affects use of the retrieval module).
944 Fixed bug in plain SGML reader in function data1_read_node:
945 tags with prefix "var" was incorrectly interpreted as variants.
947 Added feature "sub-schemas" to enable references to - and definitions
948 of - group of elements.
950 * Removed member parent from type data1_element (in data1.h).
952 Implemented function odr_nullval() that returns the value of
955 * Removed member num_children from data1_node (in data1.h).
957 Made NT service interface part of the server library. The
958 function statserv_main uses the NT service when required and
959 calls the statserv_start / statserv_close routines.
961 Routine zget_SearchRequest and zget_PresentRequest fills
962 resultSetName/Id member with "default" instead of "Default".
964 Fixed memory leak in server. Request queue member wasn't freed.
966 Fixed nmem_exit so that memory is freed.
970 Revised the CCL parser utility to be thread safe.
972 Added function, oid_ent_to_oid, to replace the function
973 oid_getoidbyent, which is not thread safe.
975 * Added nmem_init and nmem_exit to initialize and release
976 NMEM resources. Function nmem_init should be called once in the
977 initial thread before NMEM/ODR is used. statserv.c and client.c
978 have been changed accordingly. The change was necessary to make
979 NMEM thread safe. The NMEM memory pool is shared amongst threads
980 in a process. Unix-based applications will still work fine without
983 Added NT Services interface for the the Z39.50 (statserv) Server.
984 Refer to the ztest.c source on the usage.
986 Windows 95/NT port using MSVC5.0. Project files are included in the
989 * Defined new 'global' handle for the retrieval (data1) system. The
990 new handled, data1_handle, describes the state of the data1 system.
991 This handle is passed as first argument to virtually all
992 data1 related routines. The functions data1_create and data1_destroy
993 creates and destroys a data1 handle respectively.
995 Added ODR encode stream member to all backend request structures
996 init, search, scan etc. This stream should be used to allocate all
997 memory used for the response when thread safe operation is needed.
999 Changed the comstack utility, cs_addstr, to be thread safe. The
1000 returned hostname string returned by the function is now part the
1003 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1004 function. The cs_straddr takes a COMSTACK handle as argument, so this
1005 function must be used after cs_create and before bind/connect.
1006 This function is thread safe.
1008 Moved test server to 'ztest' directory - generic server code still
1009 in 'server' directory.
1011 Made prefix query (pquery.c) utility thread safe.
1013 Added new function modifier YAZ_EXPORT to 'export' public DLL
1014 functions when using windows (see include/yconfig.h).
1016 Added definitions to the OID database (util/oid.c) (RVDM).
1018 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1020 Added call to ccl_rpn_delete in client program.
1022 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1023 release of RPN structure.
1025 Added support for C++, headers uses extern "C" for public definitions.
1026 With input from RVDM.
1028 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1029 Thanks to Ronald van der Meer (RVDM).
1031 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1033 Added support for private extensions to the OID database
1034 (oid_setprivateoids()). Thanks to RVDM.
1036 Added optional, physical ANY (key replication)
1038 Fixed null-reference problem in GRS-1 output filter.
1040 Proximity operator added to Prefix Query Format (PQF).
1042 In test client command "base" accepts multiple databases.
1044 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1048 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1050 Smallish bug-fixes in the new encoders/decoders (explain).
1052 Bug fixed in DeleteRequest.
1054 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1056 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1058 Added SOIF syntax (using private OID for now) to retrieval module and client.
1060 Added Update extended service.
1062 Added SearchResult-1 additional info structure.
1064 Added optional CCL (ISO8777) interpreter as separate module. Available
1067 --- 1.2 1996/6/10 (1st anniversary release)
1069 Added Summary record syntax. Lightly tested.
1071 Added OPAC record syntax. Untested.
1073 Added ResourceReport service encoders/decoders. Untested.
1075 Fixed bug in z_Unit - wrong tagging on unitSystem.
1077 Fixed bug in the DiagRecs decoder.
1079 Added options for max PDU size and session timeout to frontend-server.
1081 Added documentation of query-language parsers and other supporting utilities.
1083 [frontend-server] Added Attribute set to the bend_scanrequest API.
1085 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1086 surrogate diagnostics were generated.
1088 [retrieval] Allow multiple local values for attribute.
1090 [retrieval] Allow multiple attributes per element in .abs files. index type.
1092 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1094 --- 1.1pl2 1996/4/10
1096 Minor changes, mostly specific to Zebra's requirements (retrieval)
1100 Repaired bug in frontend server when running multiple listening
1101 endpoints in dynamic mode.
1103 z_External() now won't break if a known, ASN.1 value comes encapsulated
1104 in an octet-string. The value will pass through unmodified in an Odr_oct.
1106 Added a bit of code to the demo client to decode & display
1107 ASN.1-structured records represented in the octet-aligned branch of
1108 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1110 Added z_ext_getentbyref() to the ASN module. Doc updated.
1112 * Completed the SCAN definition in the ASN module. This may break SCAN
1113 code based on older YAZ-versions at compile-time. The fix is easy -
1116 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1117 under the SCAN definition. Remember to initialize this, server-people.
1119 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1120 that this does not extend to ODR and ASN.
1122 Comstack allows insertion of established socket (primarily for
1123 inetd-operation of servers). Doc updated.
1125 Front-end server can now start from the inetd in TCP mode. Doc
1128 --- 1.0pl4 1996/1/24
1132 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1133 the rank and record number.
1135 Adjustments to the frontend server.
1137 Fixed diagnostic BER dumper. It ignored the file argument.
1141 Various changes to retrieval module.
1143 Changed the union discriminators of the protocol files from enums to
1144 ints paired with #defines.
1146 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1149 *Changed operator in the RPN structure to 'roperator', again to avoid a
1152 Fixed problems in Explain decoders/encoders.
1154 --- 1.0pl2 1995/12/6
1156 Memory bug in log module fixed.
1158 --- 1.0pl1 1995/12/5
1160 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1162 Bug in Explain DatabaseInfo module fixed.
1164 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1168 The shift to v1.0 signals that we now consider the *core* functionality
1169 of YAZ reasonably stable (the core being more or less equivalent to
1170 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1171 tested (Explain not at all - though that will happen soonish).
1173 Minor changes to code to support Windows port.
1175 Various minor changes after we're getting to use GRS-1 & co. more.
1177 Added Espec-1 format.
1179 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1180 of the protocol and it cannot be selected when encoding (maps into 'string'
1181 when decoding). Needed to talk to some servers.
1183 Demo client can request simple element set names.
1185 Added Diagnostic Format encoders/decoders.
1187 Added simple Close handling to frontend server (no hooks for resource
1188 reporting yet), and demonstration client.
1190 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1192 --- 1.0b3 1995/08/24
1194 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1195 handled incorrectly when records were requested in the searchResponse. This
1196 will only affect you if you use the frontend-server.
1198 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1199 Test-client will ask for and print GRS1. Ztest will return dummy records
1202 Added Explain encoders/decoders to the service-level API. Untested.
1204 Added Extended Services: Item Order encoders and decoders to the Service-
1205 level API. Untested. We could use a recent copy of the pertinent bits
1206 of the ILL protocol to add those bits.
1208 Added diagnostic format 1 encoders/decoders to the service-level API.
1211 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1212 odr_cons.c, which causes a more correct output.
1214 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1215 was always set to 0 when no records were requested in the searchRequest.
1217 * Added better external-handling. This shouldn't harm old code that
1218 *encodes* externals. It can break code that looks for a
1219 'single-ASN1-type' representation, since those types that are known
1220 are now decoded immediately. Look at the SUTRS sample code in
1221 seshigh.c and client.c. Documentation updated.
1223 Handling of structured records in bend_fetchresponse. Length -1 marks
1224 structured record, type is deduced from format field.
1226 --- 1.0b2 1995/06/27
1227 Fairly quick maintenance release to add SUTRS support.
1229 Fixed handling of SUTRS records in the demonstration client.
1231 * Added format field to the bend_fetchrequest and bend_fetchresponce
1232 structures of the backend API (frontend server). When the record is
1233 returned, the value of the format field is mapped to an OID. The
1234 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1235 of the record. The special value VAL_NONE in the bend_request means
1236 that no specific format was requested by the client. Documentation
1237 updated accordingly. Test server (ztest) will return a fixed dummy
1238 SUTRS record if your client requests SUTRS.
1240 Documentation updated accordingly.
1242 You can now set external libraries and RANLIB support in the top-level
1246 First public release.