1 Implemented function ccl_xml_config which parses XML version of CCL
2 configuration (bug #798).
4 Fixed bug #797: yaz_marc_write_xml does not honor character conversion.
6 Added timings utility (yaz/timing.h)
10 Added yaz_marc_write_xml which creates MARCXML/MarcXchange record as
13 Fixed bug #779: Rotation of apdu.log fails.
15 Fixed for character set conversions:
16 Unicode to MARC-8 conversion for certain less preferred UTF-8 sequences.
17 Honor G1 set in MARC-8 decoding.
21 Fixed bug #775: char conversion does not handle Alternative UTF-8
24 Implemented function yaz_marc_read_line which parses MARC line format
25 records. There is a wealth of formats out there. So far, this function
26 reads line records produced by yaz_marc_write_line.
28 yaz-marcdump's options -x, -X, -I, -e have been replaced with the
29 more generic and easier to remember(!) options: -i format and -o format
30 which specifies input format and output format respectively - where
31 format is one of "marc", "marcxml", "line", "marcxchange".
33 Added 'check only' option for MARC utilities. Option -n for yaz-marcdump
34 does not print anything except warnings for records.
36 For yaz-marcdump, added support for MARC split into files (-s) with a given
39 Changed the SRU update structures and codecs to reflect the SRU pre 1.0
40 spec, at http://www.loc.gov/standards/sru/record-update/
41 This has changed the binary layout of the following structs:
42 Z_SRW_extra_record, Z_SRW_updateRequest, Z_SRW_updateResponse and
43 bend_update_rr . Patch by Ko van der Sloot.
45 Added GFS utility function bend_assoc_is_alive which returns 1 if
46 association is still alive (client is connected); 0 otherwise (client
47 closed connection). This allows busy servers to stop working for
50 Added ziffy: the promiscuous Z39.50 APDU sniffer. until now, ziffy has
51 been a separate piece of software. This version of ziffy has been modified
52 to fit with YAZ. ziffy is copyright Rocco Carbone and covered by GPL v2.
54 Fixed bug #740: Handle SRU records referring to xmlns's outside recordData.
56 Fixed bug #722: Allow Z39.50 Init Options to be specified / retrieved.
57 Client code may now interrogate options such as "init_opt_sort" to
58 find out whether the server claims to support various options.
62 Added utilities yaz_{set,get}_esn to set/get element set name from
65 Removed the build of libyazthread.la. The libyaz.so is the threaded version
66 of YAZ and has been so since YAZ 2.1.10.
68 Implemented ZOOM_record_error which returns error information for
69 record (surrogate diagnostic).
73 Updates for SRU Update by Ko van der Sloot:
74 1. Changed name from "operation" to "action"
75 2. Fixed that that "recordIdentifier" was called "recordId". Kept the old
76 versions in the code, marked as 'backward compatible'.
77 3. Added diagnostics for SRU Update.
79 Fixed bug #709: Records are fetched in wrong format when tasks are queued.
81 Fixed bug #707: CQL->RPN ignores lines with leading spaces.
83 Fixed bug #706: XML hex encoding UTF-8 chars out of range 0-255.
85 For GFS, fixed problem with SRU diagnostic 'First record position out of
86 range' being issued for 0 hits.
88 zoomtst10 part of Windows Build.
92 Implemented yaz_filepath_comp which splits a path into file path
93 components (required by Zebra 2.0.3+).
95 Change wording of YAZ license to the 'Revised BSD License'. YAZ has used a
96 BSD inspired license until now so this should not have any real impact on
97 anybody. See http://www.opensource.org/licenses/bsd-license.php
99 Fixed bug #687: Missing log lines.
101 Fixed bug #678: CQL to PQF translation does not preserve double-quote
104 Fixed bug #689: SRU diagnostics to be added.
106 Implemented new ZOOM function, ZOOM_connection_is_idle, which checks
107 whether a connection is idle (no more work do do).
109 --- 2.1.34 2006/10/04
111 Change type of optval from long to int for invocation of setsockopt with
112 the SO_REUSEADDR option. Thanks to Ateeq A. Altaf, Talis.
114 Added support for specifying the max log file size for the Generic
115 Frontend Server. The size is given with option -r.
117 --- 2.1.32 2006/09/21
119 Fix problem introduced in YAZ 2.1.28 WRT unix sockets in the ZOOM code.
121 --- 2.1.30 2006/09/17
123 Fixes for getaddrinfo use, Bugs #655 + #660. These bugs were introduced
126 Fixed bug in Generic Frontend Server that could cause a server to stop
127 accepting new connections. Bug only seen on dual CPU Windows 2003 server.
129 For the generic frontend server, the maximum record size is used as maximum
130 size of incoming packages (SRU + Z39.50). The value until was previously
131 only used in Z39.50 Init negotiation and, later, in a session controlled
132 sizes of records returned. This is controlled using -k option. It can be
133 specified, per server, with element maximumrecordsize in YAZ' GFS XML config.
135 --- 2.1.28 2006/09/04
137 TCP/IP comstack uses getaddrinfo now to resolve names. It should be IPV6
140 Fixed bug #644: Using Non Reentrant gethostbyname causes SIGSEGV.
142 New option for yaz-marcdump -lpos=value which allows setting a portion
143 of MARC header to a certain value.
145 Fixes for MARC generation when encoded as MARC-8 (bug 642, 643).
147 ZOOM-C reads option extraArgs. If set the value of extraArgs is appended to
148 SRU URI (POST/GET). Value must be URL encoded, such as x-id-a=v1&x-id-b=v2 .
150 --- 2.1.26 2006/08/15
152 Fixed problem with SRU mode type (soap, get, post) for yaz-client
155 Fixed problem another problem with ZOOM_EVENT_RECV_RECORD . Bug #626.
157 --- 2.1.24 2006/08/08
159 Fixed MARC ISO2709 encoding routines to deal with character set
162 Minor changes to GFS logging. Database included in search request log
165 Fixes for ZOOM-C: event ZOOM_EVENT_RECV_RECORD was not generated for
166 cached/multiple records.
168 Shared libraries are built by default on Unix+configure.
170 Changed cql2pqf transformation to use a different evaluation order. The
171 new order is: always, relation, structure, position, truncation, index
172 and relationModifier. Old order was: always, relation, relationModifier,
173 structure, index, position, truncation. Note that the the latter ones
174 override former ones for identical attributes.. The new scheme means that
175 it is possible to override any existing attribute with a relationModifier.
176 And also that it is possible to override everything for the index rule
177 (except the ones listed in relationModifier). No order is perfect but this
178 one, we believe, covers more real cases.. The "always" should have been
179 called "default", since the attributes there can be overridden with all
182 For Libxml2 and friends, YAZ defines YAZ_HAVE_{XML2,XSLT,EXSLT) in the
183 compilation phase, but also for yaz-config --cflags output. This allows
184 us to have public headers with Libxml2 stuff in them . It should also,
185 eventually, make Libxml2 checks redundant in packages using YAZ, such
188 --- 2.1.22 2006/06/15
190 Changed SRU update structure bend_update_rr so that SRU diagnostics are
191 stored in uri, message and details.. Previously diagnostics were stored
192 in errcode, errstring. Patch by Ko van der Sloot. Breaks binary
193 compatibility.. but he's probably the only one affected, so.
195 Added support for CCL, compiled on the client side, in ZOOM-C. This
196 is invoked using ZOOM_query_ccl2rpn() with the CCL configuration as
197 input; the resulting query objects can be used for for searching with
198 ZOOM_connection_search() and scanning with ZOOM_connection_scan1().
200 YAZ' configure searches for OpenSSL by default.
202 SSL comstack uses SL_CTX_use_certificate_chain_file rather than
203 SL_CTX_use_certificate_file. See
204 http://lists.indexdata.dk/pipermail/yazlist/2006-June/001615.html
205 for more info. Thanks to Ko van der Sloot.
207 --- 2.1.20 2006/06/02
209 Bug #600: SRU GET, POST support for yaz-client. Introduced
210 command 'sru' which selects method SOAP/GET/POST.
212 Allow missingValueAction to be specified for the sortspec string -
213 function yaz_sort_spec. By default, the missing value action is null.
214 Use ! to specify "abort". Use = followed by stringvalue to specify default
217 Ensured that Present-handler (if defined) is called in GFS before any call to
218 fetch-hhndler. This now includes piggy-backed presents as well as SRW/U
219 searchRetrieve requests.
221 Documentation for YAZ is now based on the Docbook XML/XSLT using
222 xsltproc + N Walsh's stylesheets. It means that the CVS version of YAZ
223 is no longer depending on jade/openjade or docbook-to-man scripts.
224 PDF is no longer part of the distribution - but can optionally be
225 made using DSSSL/jadetex or FOP.
227 Added retrieval handling support in Generic Frontend Server to support
228 conversion between MARC/XML as well as XSLTtransforms. See
229 etc/yazgfs.xml for an example.
231 Added Authentication support to Generic Frontend Server in SRU
232 mode. Authentication using HTTP Basic is supported, as is the use
233 of 'x-username' and 'x-password' parameters in the request itself.
235 Added support for a new character set MARC8s identical to MARC8 except
236 that it converts combined characters to single Unicode characters in the
237 Latin-1 range (when possible).
239 --- 2.1.18 2006/04/24
241 ASN.1 compiler 0.4: generates brief Doxygen file header for
242 generated .h/.c files.
244 Utility yaz_iconv now supports conversion to MARC-8.
246 New facilities for the MARC module. The reading - and writing of
247 content are separate methods for the yaz_marc_t handle. The following
248 read functions are available: yaz_marc_read_iso2709 (Reads MARC in
249 ISO2709 format), yaz_marc_read_xml (reads MARC in MARCXML/MarcXchange
250 format). Write functions have prefix yaz_marc_write_.. The existing
251 utilities yaz_marc_decode_wrbuf and yaz_marc_decode_buf are still
252 available. Removed support for OAI-MARC and simplexml (not the
253 simplexml from PHP5).
255 Added a new ZOOM event type ZOOM_EVENT_END which signals no more events
256 to be returned for this connection.
258 --- 2.1.16 2006/03/31
260 Allow multiple languages and charsets to be specified with
261 yaz-client. Each item must be separated by comma (NO BLANKS). E.g.
262 negcharset iso-8859-1,utf-8
264 Translation of proximity nodes from CQL into PQF now works.
266 Moved to automake 1.8, 1.9.
268 Added function yaz_log_set_handler which allows a log handler to be
269 installed. This handler will be called for all log messages. Output
270 to file is also produced; but that can be disabled by passing NULL
271 fname to yaz_log_init_file.
273 Fixed another problem with MARC-8 -> ISO-8859-1 conversions. Bug #537.
275 For SRW (including GFS), accept application/soap+xml as content-type
278 For GFS in SRU mode, an empty stylesheet in SRU URL (&stylesheet=&)
279 produces NO stylesheet reference even if a default stylesheet is specified
282 --- 2.1.14 2006/03/14
284 Updated Windows package to include yazd.dll + yazd.lib for the
285 Development component.
287 If the environment variable YAZ_LOG is set, then it is used as a
288 string indicating the default level of logging to use if not
289 overridden by calls to yaz_log_init() or yaz_log_init_level(). If
290 it's not defined, then the manifest constant YLOG_DEFAULT_LEVEL is
291 used as before. So, for example, to omit warnings from YAZ logging,
294 cql_transform() now map structure and other attributes before indexes,
295 so that index-specific structures and other attributes can override
296 defaults. So now a combination of mapping specifications such as:
298 index.dc.date = 1=date-modified 4=5
299 does the right thing.
301 cql_transform() now also respects the "always" mapping specification,
302 which establishes an initial set of attributes to be used for all
303 terms except where overridden by more specific attributes associated
304 with the index, relation or modifier.
306 Added SRU-GET and SRU-POST support for ZOOM C. Option "sru" specifies
307 which mode to use; one of "post", "get" or "soap" (SRW, default).
309 Fixes for yaz_iconv routines: changed trie-based character set conversions
310 to use only non-negative values for bit fields due to Sun's C compiler not
311 supporting negative values.
313 Fixed bug in character set conversion yaz_iconv. Some three byte UTF-8
314 sequences where not read correctly. Fix by Rustam Usmanov.
316 Updated win/makefile to use options, settings which makes things
317 compile with VS C 2005.
319 --- 2.1.12 2006/02/01
321 Fixed bug in yaz_oi_update which used incorrect value for categoryValue.
323 In ZOOM socket code, use select instead of poll on MacOSX.
325 ZOOM-C now support client-side compilation of CQL into RPN that is
326 sent to the server, enabling CQL to be used against all Z39.50
327 servers. Use ZOOM_query_cql2rpn() to set the compiled CQL into a
328 ZOOM_query object, and submit it using ZOOM_connection_search().
329 The CQL-to-RPN translation uses a configuration file, the name of
330 which must be specified in the Connection's "cqlfile" option.
332 ZOOM-C also support CQL scanning, via the new ZOOM_connection_scan1()
333 function, which takes as its start-term parameter a ZOOM_query object
334 (which may have had either CQL or RPN set into it).
337 --- 2.1.10 2005/11/29
339 Added ZiNG Update Support. New codecs are defined in srw.h. Extended the
340 GFS to support this as well. Backend handler, bend_srw_update, does the
341 update work. Code contributed by Ko van der Sloot.
343 Allow retrieval of Search Result-1 information in ZOOM by the use of
344 options that are attached to a result set. ZOOM documentation updated
347 Fixed bug #416: First/second comb characters not handled in the MARC-8 to
348 UTF-8 conversion. Patch by Raj Patel.
350 Added option -m to GFS to control formatting of timestamps in log file.
352 Added 'exit' as synonym for 'quit' in yaz-client
354 Added support for specifying SRW resultSetId + resultSetIdleTime in a
355 Generic Frontend Server's search handler. Refer to include/yaz/backend.h
356 for the new members. Patch by Ko van der Sloot.
358 Added support for SRU POST. It is supported for content-type
359 application/x-www-form-urlencoded only. Patch by Ko van der Sloot.
361 Do not build the separate Multi-threaded (MT) library libyazthread.la.
362 Instead make the library libyaz.la multi-threaded. Threading as a whole
363 can still be disabled by configure option --disable-threads. Previosly,
364 with older GLIBCs there were problems with MT libs under Apache. This
365 has now been fixed a long time ago.
367 Fixed bugs in yaz_log that occurred on Sparc Solaris in Multi-threaded
370 CQL module modified to be case insensitive for relations/indexes/operations.
372 Fixed bug in CQL transform code: incorrect value relationModifieder
375 Added 'show all' command for yaz-client which retrieves all results
378 Added new yaz-client, xmles, which takes a (private) OID and
379 a document to be sent as an extended service request.
381 Describe new yaz-client commands wait_response and set_auto_wait.
383 Increase TCP/IP listener backlog from 3 (which I am guessing was
384 copied from the SunOS manual entry way back when) so SOMAXCONN, so
385 that the socket will queue as many incoming connections as it's able
386 to handle ongoing connections. In other words, it will never now
387 refuse a connection that it would be able to handle merely because
388 it's not got around to accepting() enough of the pending connections
389 yet. This is the behaviour anyway under Linux, where the listen()
390 argument is ignored; but not under BSD and on systems such as
391 MS-Windows that use BSD-derived TCP/IP stacks. The behaviour of
392 YAZ-based servers should now be uniform across operating systems in
395 yaz-marcdump uses 64-bit file access on some systems. This is enabled
396 on Linux and other Unix variants where _FILE_OFSET_BITS=64 is supported.
397 This allows yaz-marcdump to read large MARC batches (>2 GB).
399 Modified all YAZ source files - except the source which is auto-generated
400 by tools - to use spaces rather than TABS. Emacs/VIM trailer added to
403 Add ZOOM_connection_option_getl() and ZOOM_options_getl(),
404 corresponding to the existing *_setl() function. These allow option
405 values containing arbitrary valuues.
407 Add ZOOM_resultset_sort1(), which should ALWAYS be used in place of
408 ZOOM_resultset_sort() in new applications. Its behaviour is identical
409 except that it returns an indicator of whether or not the sort
410 criterion was accepted (0 for OK, -1 for invalid).
414 Fixed bug in yaz_marc_decode_buf. By mistake the routine appended
415 MARC output rather than returning "new" buffer.
417 yaz-client warns about unknown init options.
419 Fixed bug #371: "options concurrentOperations ignores concurrentOperations"
423 Added support for SRW sort in Generic Frontend Server. Patch
424 by Ko van der Sloot. Member srw_sortKeys in bend_search_rr holds
425 sortKeys - or NULL if none is provided.
427 Fixed bug #307: It was impossible to specify indefinite/no timeout
428 for ZOOM_event. Special timeout value -1 now means indefinite timeout
431 Added support for multiple languages and charsets to be specified in
432 ZOOM. Each charset/language is separated by a blank. If negotiation is
433 in effect in init-response, Option
434 "negotiation-charset-in-effect-for-records" set to 1(true) or 0(false).
435 Code based on patch by Vasiliy Osadchuk.
437 Fixed bug #306: infinite recursion that occurred when calling
438 yaz_log_level_init as the first call (before other log level or
441 Fixed bug in scan handling in front end server: if preferred-Position-In-
442 Response was non-present, a NULL pointer referece was performed.
446 Changed include/yaz/diagbib1.h and added include/yaz/diagsrw.h with
447 diagnostic messages+codes for Bib-1 and SRW. Preprocessor defines are
448 now defined for all those error codes. So instead of putting 109 in
449 your program you'd use YAZ_BIB1_DATABASE_UNAVAILABLE. The messages
450 are generated from a .csv - file. See src/bib1.csv and srw/srw.csv.
452 Modified the yaz-marcdump utility to skip garbage bytes between MARC
455 Fixed bug - uninitialized memory - due to bad code for fix of bug #272.
457 Program yaz-client now exits and produces an error message if multiple
458 Z39.50 servers are specified on the command line (none or one allowed
461 Program yaz-marcdump skips garbage bytes between ISO2709 records rather
466 Fixed bug #273: Update for recent MARC-8 -> UNICODE changes.
468 Fixed bug #272: Preserve spacing for CCL terms.
472 Added support for virtual hosts and multiple backend servers for
473 the YAZ frontend server. The configution is XML based and
474 support specificition of CQL to RPN mappings and explain information.
475 See section "Virtual Hosts" in the YAZ manual.
477 Extended OPAC display utility. OPAC display utility renders
478 bibliographic (MARC) record as well. Added yaz_opac_decode_wrbuf
479 to supplement yaz_marc_decode_wrbuf.
481 Fixed a bug in MARC decoder that could caused it to crash for some
482 invalid MARC records. More diagnostics and warnings where added in
483 XML output (warnings, etc are stored in comments).
485 --- 2.0.34 2005/02/08
487 Fixes for UNIX domain sockets. Bug #261.
489 Fixes for MARC-8 to UTF-8 conversion. Bugs #258 and #260.
491 Fixed bug #263: YAZ MARCXML dump shows extra spaces after control fields.
492 Added yaz_marc_subfield_str which defines subfield lead string which is
493 used in YAZ_MARC_LINE format. Default string is blank+$. Added
494 yaz_marc_endline_str which defines end of fields string used in
495 YAZ_MARC_LINE format. Default string is newline.
497 Experimental support for MarcXChange. This format can be produced
498 by yaz-marcdump and is implemented in yaz_marc_decode - functions.
499 http://www.bs.dk/standards/MarcXchange.xsd
501 Added yaz-client commands scansize that sets maximum number of
502 entries to be returned by scan.
504 --- 2.0.32 2005/01/11
506 Added support for SRW scan in yaz-client and Generic Frontend Server.
508 * Added whereInList member to SRW Scan Term.
510 * Changed Z_SRW_scanRequest to be able to carry both CCL and PQF.
512 Fixed NMEM system to return aligned blocks on the smallest boundaries
513 that are suitably aligned for all possible types on the particular
514 architecture YAZ is being built for.
516 --- 2.0.30 2005/01/04
518 Fixed numerious warnings that was issued with newer versions of GCC.
520 Fixed NMEM system to return aligned blocks on 8 byte boundaries rather
521 than 4 bytes, since 4 may not be enough on some systems such as GCC 3.4.3
524 Make YAZ Generic Frontend Server slightly faster.
526 Enhance (and reduce) logging for Generic Frontend Server.
528 Revert YAZ log system so that it flushes every write operation
529 by default. (YAZ 2.0.26 and earlier verisons did that). Bug #240.
531 Modified the YAZ logging system. The LOG level defines use YLOG_ prefix
532 instead of LOG_, due to name clash with syslog(3). LOG_ are still
533 present. New applications should define YAZ_USE_NEW_LOG=1 - this
534 will effectively disable old definitions.
536 --- 2.0.28 2004/11/09
538 Added yaz_log_time_format which specifies log format using
541 Added yaz_log_module_level which returns mask for a module. Value
542 is non-zero mask a if module is enabled; zero if disabled.
544 * Fixed bug #148: CQL parser may leak. A few prototypes were changed
545 in include/yaz/cql.h.
547 Fixed bug #176: Dont throw diagnostics on empty SRU args.
549 Fixed bug #175: surrogate diagnostics in SRW lacking NS.
551 Fixed bug #172: RPM builds does not enable SSL.
553 Doxyfile.in part of dist. Doxyfile generated by configure.
555 Configure aborts if any of --with-xml2, --with-openssl, --enable-tcpd
556 are given and the corresponding component does not exist.
558 Extend CCL documentation in YAZ reference. Describe r=r.
560 --- 2.0.26 2004/10/01
562 Fixed MARC->MARCXML conversion to properly deal with
563 fields, subfields, indicators having non-ASCII characters.
565 Fixed MARC->MARCXML conversion so that ASCII control characters
566 except TAB,CR,LF are removed from resulting XML (XML 1.0 does not
569 Added YAZ GFS support for conversion from Z39.50 surrogate
570 diagnostics to SRW surrogate diagnostics.
572 Bug fix: YAZ GFS did not return schema in explainResponse.
574 --- 2.0.25 2004/09/30
576 The YAZ GFS when converting SRW/SRU requests to Z39.50 structures
577 now converts recordSchema to elementSetName as well as schema URI.
579 Fixed bug in COMSTACK that prevented HTTP request packages from being
582 --- 2.0.24 2004/09/29
584 Added CCL facility r=r "range" which is similar to r=o "ordered" but
585 does not require white-space before and after the dash in a range, e.g.
586 x=-1990 is equivalent to x <= 1990 iff r=r, but equivalent to x= -1980
589 Fixed a few AC_TRY_LINK configure tests that did not operate properly
590 due to new GCC removing "redundant" code.
592 Added yaz-client commands scanpos and scanstep that sets preferred
593 position and step-size for scan.
595 Macro YAZ_INIT in yaz.m4: option --with-yazconfig renamed to --with-yaz.
597 Added CCL utility ccl_qual_buf which parses one or more CCL
598 spec lines in a buffer.
600 Added CCL utility ccl_qual_line which adds CCL qualifier line consisting
601 of name and value - ignoring empty lines and comments.
603 On Windows, the debug DLL/import lib is now named yazd.{dll,lib}.
605 Added odr_get_element_path which returns current element path for an
606 ODR handle. This utility is useful in error handling or user-defined
609 Added ODR_PRINT utility odr_set_stream which is is a more generic
610 alternative to odr_setprint. odr_set_stream takes a stream handle, pointer
611 to a write function and pointer to close function. The close function - if
612 non-NULL - will be called during odr_destroy.
614 Fixed bug in CCL parser where truncation char was not removed from
615 right side when truncation=both was in effect.
617 Fixed CQL parser to use unsigned chars for isxxx from ctype.h due
620 --- 2.0.23 2004/08/11
622 Fix buffer overrun in CQL parser when dealing with proximity (%).
624 Fixes for MARC-8 in yaz_iconv character set utilies. The MARC-8
625 to UTF-8/UCS conversion is now only based on codetables.xml.
627 yaz_marc_decode_buf sets leader pos 9 to "a" for MARCXML output.
629 --- 2.0.22 2004/08/06
631 Add support for more "commit changes" in ZOOM (uses Extended Services).
633 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
636 Yet another small fix for configure of SSL.
638 --- 2.0.21 2004/05/14
640 Fix SSL libs for configure when --with-openssl=DIR is given.
642 --- 2.0.20 2004/05/10
644 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
646 SSL comstack now uses yaz.pem certificate file on server side
647 by default. Certificate filename can be configured by calling
648 comstack function cs_set_ssl_certificate_file before cs_bind is used.
650 Fix bug regarding multiple calls to ZOOM_connection_connect.
652 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
654 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
655 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
657 ZOOM now allows inspection of X509 peer certificate for verification.
658 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
660 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
661 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
662 as "modular" but it simplifies things.
664 Added cs_get_peer_certificate to that returns peer X509 PEM.
666 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
667 NULL if SSL is unavailable.
669 Documentation about MARC decoding tools.
671 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
673 --- 2.0.19 2004/03/30
675 Rename CHANGELOG to NEWS to follow GNU style packing.
677 Fix bug with missing initialization of member in init_diagnostics.
678 This bug affects threaded version of GFS server.
680 --- 2.0.18 2004/03/20
682 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
685 Ensure zlib.dll is packed with Windows install.
687 --- 2.0.17 2004/03/17
689 Fix encoding of xsd:string to use text instead of CDATA.
691 Fix endless loop in CQL parser with unbalanced ".
693 Use a more compact way to store MARC-8 conversion tables.
695 --- 2.0.16 2004/03/16 Debian only
697 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
700 Update CQL parser to use new CQL 1.1 modifiers for booleans and
705 --- 2.0.15 2004/03/01
707 Another fix for decoding of XML packed records.
709 --- 2.0.14 2004/02/25
711 Fixes for Chunked encoding. White space not ignored after length spec.
713 Update NS and use default NS for SRW diagnostic elements.
715 --- 2.0.13 2004/02/23
717 Implement ZOOM_resultset_cache_reset which resets record cache.
719 Implement ZOOM_resultset_sort which sorts a result set.
721 Implement chunked HTTP transfer.
723 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
725 --- 2.0.12 2004/02/16
727 Added member 'schema' to bend_explain_rr structure so that backend
728 can specify explain record identifier. Defaults to Zeerex 2.0.
730 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
732 --- 2.0.11 2004/02/16
734 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
737 Added init command for yaz-client which sends "extra" init request.
739 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
740 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
742 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
744 Make ZOOM error code for "invalid query".
746 Fixed compilation for SSL which wasn't properly enabled for all platforms.
748 --- 2.0.10 2004/02/05
750 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
753 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
755 Added option -p <file> to make Generic Frontend Server to write PID file.
757 Added option -D to put Generic Frontend Server in background on its own.
759 Make ZOOM C recognize option "password". If unset, "pass" is used
760 (for backwards compatibility).
762 Fixed a bug in Generic Frontend Server that could make it crash if a
763 client sets characterSetNegotation bit, but didn't pass negotiation stuff
766 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
767 Must be issued before open, in order to be in effect.
769 --- 2.0.9-6 2004/01/12 Debian/Windows
771 Make the SRU server more picky WRT unknown params, etc.
773 Bug fix: ZOOM scan response didn't return displayTerm - when present.
775 New YAZ client command, options, that sets Z39.50 options.
777 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
778 options from a string of tokens (one token for each option bit).
780 Update SRW diagnostic code messages.
782 --- 2.0.9-5 2004/01/07 Debian/Windows
784 Handle user defined stylesheet for SRW/SRU.
786 --- 2.0.9-4 2004/01/06 Debian/Windows
788 Fix bug in decoding of Content-Length.
790 --- 2.0.9-3 2004/01/06 Debian/Windows
792 Fix a bug with decoding of XML packed records.
794 --- 2.0.9-2 2004/01/05 Debian only
796 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
798 Fix bug in SRW/SRU diagnostics decoding.
802 Fixed bug in Generic Frontend Server which could drop records exceeding
803 preferred message size. Reported and fixed by Irina Dijour.
805 Fixed calculation of package size for structured records in Generic
806 Frontend Server. Reported and fixed by Irina Dijour.
808 Fixed namespace for SRW/SRU diagnostics.
810 Fixed SEGV in yaz-client that occured for HTTP connection errors.
814 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
815 this version is incompatible with version 1.0 and older YAZ SRW/SRU
818 CQL changes to reflect recent changes to the specification:
819 * Documentation talks about context sets instead of index sets.
820 * Documentation talks about indexes instead of qualifiers.
821 * The CQL-to-PQF transformer's configuration file now uses
822 "index.set.name = <attributes>" instead of the old form
823 "qualifier.set.name = <attributes>". (Both forms are still
824 understood but the latter is deprecated.)
825 * CQL terms with no explicit index specified are now interpreted as
826 cql.serverChoice instead of srw.serverChoice (which of course
827 behaves exactly the same.)
831 MARC conversion can now generate ISO2709 output in another
832 character set. yaz-marcdump uses this facility if you invoke it
835 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
836 functions from there can be used from C++.
840 Frontend server now transfers memory from decoded packages to stream
843 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
844 references to show up.
846 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
847 the ZOOM Abstract API. The older names for the same options are still
848 also supported for the benefit of old applications.
850 ZOOM-C supports "implementationId" and "implementationVersion" options
851 to go along with "implementationName". These allow the user code to
852 specify identification strings to be sent to servers.
853 Add OID for the new ExtLite attribute set.
855 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
856 as requested/supplid by Ere Maijala <ere@atp.fi>
858 For generic frontend server, reverse the order of
859 "toolkit-supplied / application-supplied" strings sent as implementationId,
860 Name and Version. Also, remove the spaces around the slash. This brings
861 the GFS in line with the behaviour of ZOOM-C on the client side.
863 Add function ZOOM_scanset_display_term.
865 yaz-client shows scan displayTerm if present.
867 Utility yaz-iconv is now installed by default along with the man page
870 Extend configure check for OpenSSL to use pkg-config where available (such
873 Incorporate patch by Morten Bogeskov which allows a Unix file socket
874 server to specify uid/gid/mask for socket using the format
875 unix:[user=uid,][group=gid,][umask=mask,]file=path
876 If file= is omitted the existing format is assumed, e.g.
878 in which case the mask is 0666 (rw for everybody).
880 Major restructure of YAZ source. All source in libyaz is in src directory.
881 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
882 util (utility programs such as ASN.1 compiler, yaz-marcdump).
884 Added man page for utility yaz-marcdump (used to be called marcdump).
885 yaz-marcdump is installed by 'make install'.
887 Fixed a memory leak in Generic Frontend Server that occurred when decoding
888 of incoming package failed.
890 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
892 Change prototype of odr_perror: add const to message string.
894 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
896 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
897 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
898 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
899 DNS lookup. There should not be any compatibility problems with this
900 assuming that blocking=1 or 0 is used.
902 Fix bad reference in UNIX comstack in function cs_addrstr.
904 Fix for compilation on AIX.
906 The generic front-end server (server/seshigh.c) now supports returning
907 Init diagnostics to the client in User-information-field, in
908 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
913 Allow any CQL relation (not just all,any,exact,scr).
915 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
916 that features the same UI.
918 Implemented command update0 in YAZ client which is equivalent to
919 update but uses old of Ext Update ASN.1.
921 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
922 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
923 Previously no OID was used for this info.
925 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
926 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
927 returns 'malformed search term' otherwise.
929 SortResponse member resultCount now set to NULL in sort handler of
932 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
935 Add three new utility functions for translating OIDs between various
936 formats -- symbolic name such as "Usmarc", minus-1-terminated int
937 arrays and dotted strings such as "1.2.840.10003.9.5.1":
938 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
939 char *oid_to_dotstring(const int *oid, char *oidbuf);
940 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
942 Reverted modifications for ES Update definition for z_IU0Update
943 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
944 is back to YAZ 2.0.2.
946 String value attributes for CCL parser.
948 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
949 which their FirstSearch server returns in Init responses, sometimes
950 carrying useful diagnostic information when Init fails. This has the
951 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
952 "z39.50/oclcui.asn", where its definition is somewhat different from
953 what OCLC document on their web-site, as required to interoperate with
956 Support for anonymous authentication in yaz-client. Use the command
959 * Fix the OID of the Index Data-local "admin" Extended Service from
960 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
961 the 1000, which indicates a locally-defined OID, was a mistake.
965 Fix CCL directive @case handling so that it affects string match for
966 both CCL keywords and qualifiers.
968 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
969 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
970 Decoder has been updated with ASN.1 changes as listed in
971 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
972 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
973 z_IUUpdate, remains unchanged.
975 ZOOM_record_get may now return a record in a specific character set.
976 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
977 "from" is the character set of record as returned by target. "to" is
978 the character set to be returned. If omitted, "to" is UTF-8.
980 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
982 New ODR utility, odr_getelement, which returns name of element for
983 which encoding/decoding failed.
985 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
986 in cases where a required element was omitted.
988 Bug fix: some MARC8 sequences were not converted.
990 New ZOOM option "step" which specifies number of records to be
991 retrieved in one chunk. Used in conjunction with "start" and "count".
993 SRW support for yaz-client. Use scheme http: to use it, e.g.
996 yaz-client no longer does (un)intelligent character set conversions
997 by default. Can be enabled with charset and marc_charset commands.
999 xmalloc trace fix for 64-bit systems such as DEC alpha.
1001 Solaris 2.6 compile fix.
1003 New function, cql_strerror() translates SRW error codes, as returned
1004 by cql_transform_error(), into human-readable English strings. Used
1005 in yaz-client diagnostics when appropriate.
1007 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
1008 converts it into a type-1 query which is sent to the server. This
1009 makes CQL available for use with all Z-servers, as opposed to the tiny
1010 minority that can handle CQL queries themselves.
1012 --- 2.0.2 2003/04/28
1014 New Debian package layout similar to the Redhat Package layout.
1016 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
1017 and search result respectively.
1019 --- 2.0.1 2003/04/25
1021 Redhat package is now several packages: libyaz (runtime libraries),
1022 libyaz-devel (development and documentation, and yaz (utility programs).
1023 Package spec file by Morten Bøgeskov.
1025 New member 'schema' in struct bend_fetch_rr which the name of requested
1026 schema (SRW/SRU) for record (or NULL if none was given). The fetch
1027 handler MAY set this to reflect the schema of the returned record.
1029 New member 'display_term' in struct scan_entry. GFS now sets member entries
1030 and allocates scan entries to be filled by user scan handler. In previous
1031 version, entries member was allocated by the scan handler. That still works,
1032 but the GFS will ignore member display_term - assuming it was NOT set by
1033 the handler. The fact that the GFS now allocates the entries both allows
1034 for new members and makes a scan handler easier to write.
1036 Fix CQL lex buffer overflow.
1038 SRW/SRU recordPacking. For SRW default recordPacking is string. For
1039 SRU default recordPacking is string.
1041 SRU protocol support for frontend server.
1043 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
1045 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
1047 Added scan for the ZOOM shell (zoomsh).
1051 * String Identifers for Schemas (Amendment 5).
1052 http://lcweb.loc.gov/z3950/agency/amend/am5.html
1053 Old definition for schema
1054 Odr_oid *schema; /* OPT */
1059 Z_InternationalString *uri;
1060 #define Z_Schema_oid 1
1061 #define Z_Schema_uri 2
1064 * resultCount parameter to Sort Response (Amendment 1).
1065 http://lcweb.loc.gov/z3950/agency/amend/am1.html
1067 Support for SRW 1.0 over HTTP. This is an optional feature and
1068 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
1071 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
1072 on the same port. SRW SearchRetrieveRequests are mapped
1073 to bend_init,bend_search,bend_fetch,bend_close.
1075 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
1077 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
1078 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
1080 ZOOM connections are SRW based if schem http is used for hostname
1081 in connect, e.g. z = ZOOM_connection_new("http://myserver");
1082 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
1084 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
1085 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
1086 distance=n, order=true/false, relation=le, prox unit=word. If
1087 n is omitted, distance 1 is used.
1089 Fixed problem with C compiler include path in wrong order.
1091 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
1092 on Solaris. Patch from Ko van der Sloot.
1094 New MARC decode API. All new functions operate on a yaz_marc_t
1095 handle. The most important new functions are: yaz_marc_create,
1096 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
1097 decode and destroy respectively. Decoder can produce formats
1098 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
1099 include/yaz/marcdisp.h.
1101 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
1102 to UTF-8, UCS-32, wchar_t or Latin-1.
1104 * Prototypes for yaz_iconv_-functions moved to separate header
1105 include/yaz/yaz-iconv.h.
1107 Make a few private functions 'static' in unix.c. This prevents
1108 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
1110 For ZOOM connection, the options targetImplementation{Id,Name,Version}
1111 are set when Init Response is received.
1113 New function ZOOM_connection_error_x similar to ZOOM_connection_error
1114 but returns diagnostic set as well.
1116 New function yaz_strerror which is a portable wrapper for
1117 strerror/strerror_r/GetLastMessage.
1119 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
1120 is returned for MARC. If type is "oai", then OAI MARC is returned.
1122 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
1125 --- 1.9.2 2002/11/26
1127 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
1129 Fix bad race conditions on SIGTERM and terminate gracefully in
1132 Move retrieval (data1) module to Zebra since nobody seems to be
1135 Add GRS-1 render for ZOOM using same format as yaz-client.
1137 --- 1.9.1 2002/10/05
1139 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
1141 Fix broken ESpec handling in data1 module.
1143 SGML reader parses comments and makes them part of the data1 tree.
1145 Added several type casts so that YAZ compiles as C++ code.
1147 ZOOM didn't handle PDU encoding failures properly.
1149 Added more Bib-1 diagnostics (approved extensions).
1151 GNU configure: better check for iconv.
1153 More portable use of accept, getpeername. Check for socklen_t. Use
1154 int/size_t if socklen_t is not defined.
1158 PQF parser rejects bad queries - including those with extra
1159 characters in them. PQF parser used to silently ignore that.
1160 Cleaner API for PQF added, which allows you to get detailed
1161 error information for bad queries (see yaz/pquery.h).
1163 Fixed bug in ZOOM_record_get for type "database".
1165 Implemented mini iconv library supporting conversions between
1166 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
1168 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
1170 --- 1.8.9 2002/08/20
1172 Fixed ZOOM C record cache so that preferredRecordSyntax and
1173 elementSetName is used to check for already fetched records.
1175 --- 1.8.8 2002/08/02
1177 Added three members in bend_initrequest structure to facilitate
1178 character set negotiation.
1180 Fixed a bug in frontend server that could cause indefinite
1181 loops under rare conditions.
1183 Revised character set utilities (charneg.h) so that encoding
1184 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
1186 For PQF, directive @term <type> sets term type for Scan/Search.
1187 Here <type> is general, string, numeric, null. The term type
1188 is inherited - just like @attr.
1190 New call odr_set_charset that sets character set conversion for
1191 international-strings on a ODR stream. Prototype is:
1192 int odr_set_charset(ODR o, const char *to, const char *from);
1193 The InternationalString is still represented as C string in YAZ
1194 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
1195 won't). On the protocol level, you can use any encoding.
1197 Support for UNIX sockets in ZOOM.
1199 Solaris recv sometimes returns errno == ENOENT. It is treated as
1200 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
1202 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
1203 both client and server. Code by Morten Bøgeskov.
1205 --- 1.8.7 2002/05/22
1207 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
1208 that they can be used directly from Visual Basic. You must recompile
1209 your windows APP if you're using ZOOM.
1211 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
1212 Commands "lang" and "charset" sets language and character set respectively.
1213 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
1214 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
1216 Attributes from multiple CCL fields may be OR'ed rather than merged
1217 using directive "@field or". Fields are still merged by default -
1218 equivalent to "@field merge".
1220 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
1223 Fixed bug in zget for parameter ExtendedServicesResponse.
1227 --- 1.8.6 2002/03/25
1229 Added PQF feature: '@attr type=value' may be written as '@type=value'.
1231 Client displays USR.1:SearchResult-1 (hits per term).
1233 Additional Search Info for search in Generic Frontend Server.
1235 Fixed CCL parsing of "field=s".
1237 WIN32 installer - using the excellent NSIS software from nullsoft.
1239 Fixed CCL parsing of "field = - <number>".
1241 Added function yaz_marc_decode that decodes MARC for line mode
1242 display or XML (similar to that used by JZKit).
1244 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
1245 Z39.50. But ISO/ILL was, however.
1247 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
1248 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
1250 http://lcweb.loc.gov/z3950/agency/amend/am2.html
1251 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
1253 --- 1.8.5 2002/02/03
1255 New YAZ client features: Command completion and new commands:
1256 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
1257 Code provided by Jacob Poulsen.
1259 New call oid_trav, that visits all registered OIDs via callback.
1261 Function ZOOM_record_get now returns const char pointer rather than
1262 void pointer. It saves a lot of type casts.
1264 For YAZ client, command "auth" now allows you to set authentication
1265 in IdPass style. It is enabled when three tokens are given - order
1266 is user, group and password.
1268 Fix memory leaks in MARC record handling for ZOOM.
1270 New option for YAZ client, -k <kilobytes> that sets
1271 maximum record size. Similar to -k option for generic frontend
1272 server and yaz-ztest.
1274 More fixes for scan. Non-zero stepSize handled. OID's fixes.
1276 Prefix query parser reports "fail" when bad attribute set is given.
1278 Fix in MARC decoder. Proximity logging. Fix for attribute set
1279 in scan handler for server. Patches by Shigeru Ishida.
1281 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
1284 Configure option --with-openssl=<dir> now works when a directory is
1285 specified. Patch provided by Morten Bøgeskov.
1287 New option for YAZ client, -u <auth>, that sets authentication.
1289 ZOOM fix: error information was sometimes "missing", since error
1290 was cleared/reset too when it shouldn't.
1292 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
1294 --- 1.8.4 2002/01/04
1296 Scan for ZOOM API. New object ZOOM_scanset. New functions
1297 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
1298 ZOOM_scanset_destroy.
1300 New ZOOM function, ZOOM_connection_last_event, that returns type
1301 of last event (such as "receive data", "send data", "apdu received",
1304 New ZOOM option, schema, that specifies schema for retrieval.
1306 New CCL feature. Qualifiers can be aliases for one or more
1307 other qualifiers (if more than one is given, OR is used).
1309 ZOOM uses named result sets if target supports it.
1311 Two new YAZ client commands: . (dot, which sources a script of YAZ
1312 client commands), and ! (to execute shell command.). Implemented
1315 Working on Debian packages.
1317 --- 1.8.3 2001/11/19
1319 YAZ client enables named result sets only if target supports it.
1321 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
1323 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
1324 with key="host" to get same result.
1326 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
1327 Function Z3950_resultset_record(s) returns references to records
1328 "owned" by resultset. To become owner use Z3950_record_clone.
1330 Function z_ext_record handles Extended Services. Thanks to
1333 --- 1.8.2 2001/11/12
1335 CCL Parser fix: ignore token comma when dealing with and-lists.
1337 Documentation updates for COMSTACK.
1339 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
1340 Changed prototype Z3950_records. For some functions, int parameters
1341 were changed to size_t.
1343 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
1346 New MARC decode/display function, marc_display_exl, which properly rejects
1347 non-ISO2709 records. YAZ client uses it.
1349 --- 1.8.1 2001/10/29
1351 Fix bug: local attribute set wasn't set correctly in PQF strings.
1355 * Old Z39.50 codecs no longer supported.
1357 Added ZOOM C binding. See http://zoom.z3950.org/
1359 Renamed states for COMSTACKs to avoid confusion with events.
1361 Implemented cs_look and proper cs_rcvconnect.
1363 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
1365 Configure detects POSIX threads on OpenBSD.
1367 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
1368 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
1370 When error is returned from present handler, non-surrogate diagnostic
1371 is returned in present response (and fetch handler is no longer called).
1373 * Minor adjustments to pquery parser (PQF). Token characters may be
1374 escaped by using backslash (C-style).
1376 PQF parser allows string attribute values to be specified. For @attr,
1377 non-numeric characters after the equal-sign are treated as strings
1378 (e.g. @attr 9=title).
1380 CCL trunction character may be defined (@truncation in file)
1382 * function zget_ExtendedServicesRequest sets waitAction to
1383 waitIfPossible (was wait).
1385 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
1388 CCL operator names may be set in field definition files (CCL_bibset).
1389 See ccl/bib1 for an example.
1391 Fixes in ASN.1 compiler for C++ compatibility.
1393 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
1394 and "op_or" to avoid conflict with C++.
1396 Fixed problem with GNU readline detection on Redhat 7.0.
1398 Added step-size for Scan backend handler.
1400 Fixed bug that made the frontend server crash when no attribute
1401 set was specified for scan.
1403 Front-end server automatically switches to original working directory
1404 when installed as an NT service. Previously -w had to be specified to
1407 Added extended attributes for retrieval module (data1), so that data1
1408 records carry d1_readXML/SGML attributes. d1_read also supports
1409 null-data rules ( <tag/>)
1411 On UNIX when POSIX threads are available, a separate library libyazthread
1412 is created. Programmers should link with that library and the yaz library
1413 when using threads. The reason for the split was that some applications
1414 on Linux, such as Apache, doesn't work well when using shared objects that
1417 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
1418 (or any frontend server) in SSL mode by specifying ssl: followed by
1419 address. Only tested on UNIX.
1421 Added feature for CCL module. Virtual structure s=al or s=ol generates
1422 and-list and or-list respectively instead of phrase search.
1426 * Added prefix "yaz_" for the functions log_init.., log_file.. and
1427 log_mask_str. This was done to avoid name conflicts with other libraries
1428 (such as other PHP extensions).
1430 Added raw OID member for preferred record syntax (request_format_raw)
1431 and returned record syntax (output_format_raw) for backend fetch method.
1433 Config file yaz-config now accepts options so that it returns specific
1434 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
1436 Shared library support for UNIX using GNU libtool.
1438 * Modified backend interface. Request/Response struct's replaced by
1439 one read/write C struct. For example bend_fetchrequest and
1440 bend_fetchresult have been replaced by single bend_fetch_rr struct.
1441 Every handler - even search has to be registered in bend_init
1442 handler. This means that the YAZ library no longer refers to
1443 external functions and it makes it possible to make the whole
1444 thing a single DLL/SO.
1446 Added Segment handler for backend server.
1448 Added Zmbol/Zebra administrative functions to YAZ client.
1450 Threaded frontend server on UNIX (when POSIX Threads are available).
1451 Starting the server with option -T enables multi-threading.
1455 Added configure option --enable-comp/disable-comp to control use
1456 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
1457 located in sub directory asn.
1459 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
1460 in ${exec_prefix}/bin along with the other programs yaz-client and
1463 GNU automake used to maintain makefiles.
1465 Added several OID's.
1467 Changed retrieval module so that we can load records with no abstract
1468 syntax defined. Tagpaths in these records are fully composed of string
1471 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
1475 On UNIX, the generated makefile now supports a proper 'make install'.
1476 The prefix can be set via GNU configure to set the install location
1477 (default is /usr/local).
1479 * YAZ programs client and ztest were renamed to yaz-client and
1480 yaz-ztest to avoid conflicts when users install YAZ in "standard"
1481 locations, such as /usr/bin,/usr/local/bin,etc.
1483 * YAZ Header files were moved from include to include/yaz. YAZ Header
1484 files are referred to as include <yaz/log.h> rather than <log.h>.
1485 The YAZ include path (-I ..) is therefore the same as before. Programmers
1486 should update their #include statements or use -Ipath/include/yaz
1487 instead. The main motivation for doing this change is that YAZ header files
1488 can be installed in "standard" locations /usr/include,/usr/local/include
1489 without introducing conflicts, since ALL YAZ header files are stored
1490 in subdirectory yaz (under /usr/include for example).
1492 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
1493 rather than project/workspace files. We switched because project files
1494 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
1497 Changed name of logging function, logf, to yaz_log, to prevent name
1498 clash with some math-log functions. The YAZ header log.h defines logf
1499 to yaz_log (#define) so there should be no incompatibilities by this
1502 Added bend_start/bend_stop handlers for server. These handler are
1503 called on start/stop of server. For windows they are called whenever
1504 a service is started/stopped.
1506 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
1507 a fairly small ASN.1 compiler written in Tcl. The compiler is located
1508 in util/yc.tcl. The auto-generated C code structures are, in a few
1509 cases, incompatible with the old decoders. There are differences in the
1510 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
1511 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
1512 The preprocessor variable ASN_COMPILED is defined when the compiled
1513 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
1514 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
1515 wish to use the old encoders/decoders you can specify --disable-yc
1518 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
1519 version so that it supports both new - and old version of DB Update
1521 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
1522 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
1523 change. The name parameter can be set to 0 in which no name is specified
1524 for the construction. The macros odr_implicit and odr_explicit sets name
1525 parameter to zero for the construction involved. New macros
1526 odr_implicit_tag and odr_explicit_tag are similar to the others,
1527 except that a name parameter is added. For programmers' that don't use
1528 ODR they probably only need to change the call to z_APDU and z_External.
1530 Added access control facility by interfacing the TCP wrapper library.
1531 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
1532 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
1533 name of the daemon and enables the access control as specified in
1534 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
1536 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
1537 den Dool <H.M.vdnDool@kub.nl>.
1539 Added reference ID parameter to most functions in server API - refer
1540 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
1542 Changed name of ccl library to libccl.a (was ccl.a).
1544 Fixed bug in decoder for Explain (Category TargetInfo).
1546 Added support for GNU readline in client. Thanks to Jacob Poulsen
1547 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
1549 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
1550 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
1551 IMPLEMENTATION! This change was made to the development version before
1552 the ZIG decided to retract the amendment. If any users MUST be
1553 compatible with the original Update definition, PLEASE CONTACT US, and
1554 we will include a separate definition corresponding to the old Update
1555 ES. Note that because of the change to the ASN.1 of the
1556 TaskPackageRecordStructure we cannot define a single structure that
1557 will support both versions.
1559 * Added const modifier to buffer parameter for some ODR/BER encoding
1560 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
1561 completeWAIS, odr_dumpBER.
1563 Fixed bug in client.c which caused a crash when a scanResponse didn't
1564 contain positionOfTerm.
1566 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
1567 * will cause an error in a client if a non-YAZ target sends both a
1568 * list of Scan entries and non-surrogate diagnostics.
1570 Retrieval module enhancements. Tag sets may be typed in the reference
1571 to it. From the .abs-file the "tagset" directive takes a third optional
1572 integer type for the tag set referenced. From a .tag-file the "include"
1573 directive takes a third optional type as well. The old "type" directive
1574 in the tag set itself is still recognized but acts as the default type
1577 Backend interface change. Individual Scan terms returned from bend_scan
1578 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
1579 in include/backend.h.
1581 Retrieval module enhancements. Multiple tag sets and attribute sets may
1582 be specified in abstract syntax specs. Revised the error/warning for
1583 logging messages reported by the retrieval module when reading the
1586 Object Identifier system (oid_..) changed. The API is backwards
1587 compatible but the oid-routines now allocates new OID's when needed.
1588 Raw OID's may be specified in oid_getvalbyname.
1590 YAZ now uses GNU configure to generate Makefile(s).
1592 * Minor changes in some of the member names of DeleteResultSetRequest and
1593 DeleteResultSetResponse. See include/proto.h.
1595 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
1596 and added member 'languages' in TargetInfo (which was missing).
1598 Changed the way attribute sets are handled in the retrieval
1599 module. These are now cached, just like the abstract syntaxes
1602 Changed YAZ so that it links with compiled ASN.1.
1604 Added Explain-schema definitions and mapping routines. The following
1605 Explain categories have been implemented: AttributeDetails,
1606 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
1608 Fixed minor bug in Windows version of Server Library.
1610 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
1612 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
1614 Added EXTERNAL: UNIverse Resource Report (non-standard).
1616 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
1617 ENUMERATED and SET OF.
1619 * Added 'const' to some of the char pointer arguments for the
1620 functions, data1_read_node, data1_getelementbytagname,
1621 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
1624 Fixed bug in data1_insert_taggeddata - the last_child member of
1625 parent wasn't initialised.
1627 * Changed data1_read_record and data1_read_node so that the supplied
1628 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1629 doesn't refer to any parts of the "SGML"-buffer.
1631 Fixed bug in server library (Windows version of statserv_remove).
1633 * Changed code so that it compiles as C++. The type definition
1634 of Odr_fun which is a member of Odr_arm was changed. The result is,
1635 that an explicit typecast is needed for the fun pointer when
1636 using Odr_arm - as in:
1637 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1639 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1641 Implemented the new structured date and time definition as approved
1642 by the ZIG. Added schemaId element to the specificTag in Espec-1
1643 (also approved at the last ZIG). Thanks to RVDM.
1645 Added some Object identifiers (RVDM).
1647 Changed the Update Extended Service (RVDM).
1649 Added command "refid" to client which specifies referenceId for
1650 the following requests.
1652 Implemented extended service handling for server. See ztest.c
1653 for an example as well as backend.h. New handlers are registerd
1654 in the Init handler.
1656 * Changed interface for sort in server.
1658 Added new members to statserv_options_block. It allows a server
1659 to read options from another source than just the command line. Thanks
1660 to Charles Woodfield.
1662 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1663 renamed to zboolean. Some C++ compilers complained about the name.
1665 Minor changes to gils.abs. Added index 's' (sort) on title
1666 and date/time-last-modified.
1668 --- 1.4pl2 1998/1/30
1670 Fixed bug in server library regarding inetd mode (-i). This bug
1671 was introduced by release 1.4.
1673 --- 1.4pl1 1998/1/29
1675 Added sort facility in client and backend server interface.
1677 Fixed problem with dependencies in Makefile(s).
1679 Fixed bugs for encoders/decoders of extended services and
1682 Implemented sub-tree feature for schemas. Sub-trees are
1683 referenced in *.abs-files. See explain.abs for an example
1684 of the use of this feature.
1686 Modified bib1.att; local attributes for ANY didn't include
1687 ANY itself (only affects use of the retrieval module).
1689 Fixed bug in plain SGML reader in function data1_read_node:
1690 tags with prefix "var" was incorrectly interpreted as variants.
1692 Added feature "sub-schemas" to enable references to - and definitions
1693 of - group of elements.
1695 * Removed member parent from type data1_element (in data1.h).
1697 Implemented function odr_nullval() that returns the value of
1700 * Removed member num_children from data1_node (in data1.h).
1702 Made NT service interface part of the server library. The
1703 function statserv_main uses the NT service when required and
1704 calls the statserv_start / statserv_close routines.
1706 Routine zget_SearchRequest and zget_PresentRequest fills
1707 resultSetName/Id member with "default" instead of "Default".
1709 Fixed memory leak in server. Request queue member wasn't freed.
1711 Fixed nmem_exit so that memory is freed.
1715 Revised the CCL parser utility to be thread safe.
1717 Added function, oid_ent_to_oid, to replace the function
1718 oid_getoidbyent, which is not thread safe.
1720 * Added nmem_init and nmem_exit to initialize and release
1721 NMEM resources. Function nmem_init should be called once in the
1722 initial thread before NMEM/ODR is used. statserv.c and client.c
1723 have been changed accordingly. The change was necessary to make
1724 NMEM thread safe. The NMEM memory pool is shared amongst threads
1725 in a process. Unix-based applications will still work fine without
1728 Added NT Services interface for the the Z39.50 (statserv) Server.
1729 Refer to the ztest.c source on the usage.
1731 Windows 95/NT port using MSVC5.0. Project files are included in the
1734 * Defined new 'global' handle for the retrieval (data1) system. The
1735 new handled, data1_handle, describes the state of the data1 system.
1736 This handle is passed as first argument to virtually all
1737 data1 related routines. The functions data1_create and data1_destroy
1738 creates and destroys a data1 handle respectively.
1740 Added ODR encode stream member to all backend request structures
1741 init, search, scan etc. This stream should be used to allocate all
1742 memory used for the response when thread safe operation is needed.
1744 Changed the comstack utility, cs_addstr, to be thread safe. The
1745 returned hostname string returned by the function is now part the
1748 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1749 function. The cs_straddr takes a COMSTACK handle as argument, so this
1750 function must be used after cs_create and before bind/connect.
1751 This function is thread safe.
1753 Moved test server to 'ztest' directory - generic server code still
1754 in 'server' directory.
1756 Made prefix query (pquery.c) utility thread safe.
1758 Added new function modifier YAZ_EXPORT to 'export' public DLL
1759 functions when using windows (see include/yconfig.h).
1761 Added definitions to the OID database (util/oid.c) (RVDM).
1763 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1765 Added call to ccl_rpn_delete in client program.
1767 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1768 release of RPN structure.
1770 Added support for C++, headers uses extern "C" for public definitions.
1771 With input from RVDM.
1773 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1774 Thanks to Ronald van der Meer (RVDM).
1776 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1778 Added support for private extensions to the OID database
1779 (oid_setprivateoids()). Thanks to RVDM.
1781 Added optional, physical ANY (key replication)
1783 Fixed null-reference problem in GRS-1 output filter.
1785 Proximity operator added to Prefix Query Format (PQF).
1787 In test client command "base" accepts multiple databases.
1789 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1793 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1795 Smallish bug-fixes in the new encoders/decoders (explain).
1797 Bug fixed in DeleteRequest.
1799 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1801 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1803 Added SOIF syntax (using private OID for now) to retrieval module and client.
1805 Added Update extended service.
1807 Added SearchResult-1 additional info structure.
1809 Added optional CCL (ISO8777) interpreter as separate module. Available
1812 --- 1.2 1996/6/10 (1st anniversary release)
1814 Added Summary record syntax. Lightly tested.
1816 Added OPAC record syntax. Untested.
1818 Added ResourceReport service encoders/decoders. Untested.
1820 Fixed bug in z_Unit - wrong tagging on unitSystem.
1822 Fixed bug in the DiagRecs decoder.
1824 Added options for max PDU size and session timeout to frontend-server.
1826 Added documentation of query-language parsers and other supporting utilities.
1828 [frontend-server] Added Attribute set to the bend_scanrequest API.
1830 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1831 surrogate diagnostics were generated.
1833 [retrieval] Allow multiple local values for attribute.
1835 [retrieval] Allow multiple attributes per element in .abs files. index type.
1837 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1839 --- 1.1pl2 1996/4/10
1841 Minor changes, mostly specific to Zebra's requirements (retrieval)
1845 Repaired bug in frontend server when running multiple listening
1846 endpoints in dynamic mode.
1848 z_External() now won't break if a known, ASN.1 value comes encapsulated
1849 in an octet-string. The value will pass through unmodified in an Odr_oct.
1851 Added a bit of code to the demo client to decode & display
1852 ASN.1-structured records represented in the octet-aligned branch of
1853 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1855 Added z_ext_getentbyref() to the ASN module. Doc updated.
1857 * Completed the SCAN definition in the ASN module. This may break SCAN
1858 code based on older YAZ-versions at compile-time. The fix is easy -
1861 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1862 under the SCAN definition. Remember to initialize this, server-people.
1864 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1865 that this does not extend to ODR and ASN.
1867 Comstack allows insertion of established socket (primarily for
1868 inetd-operation of servers). Doc updated.
1870 Front-end server can now start from the inetd in TCP mode. Doc
1873 --- 1.0pl4 1996/1/24
1877 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1878 the rank and record number.
1880 Adjustments to the frontend server.
1882 Fixed diagnostic BER dumper. It ignored the file argument.
1886 Various changes to retrieval module.
1888 Changed the union discriminators of the protocol files from enums to
1889 ints paired with #defines.
1891 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1894 *Changed operator in the RPN structure to 'roperator', again to avoid a
1897 Fixed problems in Explain decoders/encoders.
1899 --- 1.0pl2 1995/12/6
1901 Memory bug in log module fixed.
1903 --- 1.0pl1 1995/12/5
1905 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1907 Bug in Explain DatabaseInfo module fixed.
1909 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1913 The shift to v1.0 signals that we now consider the *core* functionality
1914 of YAZ reasonably stable (the core being more or less equivalent to
1915 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1916 tested (Explain not at all - though that will happen soonish).
1918 Minor changes to code to support Windows port.
1920 Various minor changes after we're getting to use GRS-1 & co. more.
1922 Added Espec-1 format.
1924 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1925 of the protocol and it cannot be selected when encoding (maps into 'string'
1926 when decoding). Needed to talk to some servers.
1928 Demo client can request simple element set names.
1930 Added Diagnostic Format encoders/decoders.
1932 Added simple Close handling to frontend server (no hooks for resource
1933 reporting yet), and demonstration client.
1935 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1937 --- 1.0b3 1995/08/24
1939 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1940 handled incorrectly when records were requested in the searchResponse. This
1941 will only affect you if you use the frontend-server.
1943 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1944 Test-client will ask for and print GRS1. Ztest will return dummy records
1947 Added Explain encoders/decoders to the service-level API. Untested.
1949 Added Extended Services: Item Order encoders and decoders to the Service-
1950 level API. Untested. We could use a recent copy of the pertinent bits
1951 of the ILL protocol to add those bits.
1953 Added diagnostic format 1 encoders/decoders to the service-level API.
1956 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1957 odr_cons.c, which causes a more correct output.
1959 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1960 was always set to 0 when no records were requested in the searchRequest.
1962 * Added better external-handling. This shouldn't harm old code that
1963 *encodes* externals. It can break code that looks for a
1964 'single-ASN1-type' representation, since those types that are known
1965 are now decoded immediately. Look at the SUTRS sample code in
1966 seshigh.c and client.c. Documentation updated.
1968 Handling of structured records in bend_fetchresponse. Length -1 marks
1969 structured record, type is deduced from format field.
1971 --- 1.0b2 1995/06/27
1972 Fairly quick maintenance release to add SUTRS support.
1974 Fixed handling of SUTRS records in the demonstration client.
1976 * Added format field to the bend_fetchrequest and bend_fetchresponce
1977 structures of the backend API (frontend server). When the record is
1978 returned, the value of the format field is mapped to an OID. The
1979 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1980 of the record. The special value VAL_NONE in the bend_request means
1981 that no specific format was requested by the client. Documentation
1982 updated accordingly. Test server (ztest) will return a fixed dummy
1983 SUTRS record if your client requests SUTRS.
1985 Documentation updated accordingly.
1987 You can now set external libraries and RANLIB support in the top-level
1991 First public release.