1 Possible compatibility problems with earlier versions marked with '*'.
3 Added command "refid" to client which specifies referenceId for
4 the following requests.
6 Implemented "extended" service handling for server. See ztest.c
7 for an example as well as backend.h. New handlers are registerd
10 * Changed interface for sort in server.
12 Added new members to statserv_options_block. It allows a server
13 to read options from another source than just the command line.
15 * Changed definition of Z_Triple in file prt-grs.h - member boolean
16 renamed to zboolean. Some C++ compilers complained about the name.
18 Minor changes to gils.abs. Added index 's' (sort) on title
19 and date/time-last-modified.
23 Fixed bug in server library regarding inetd mode (-i). This bug
24 was introduced by release 1.4.
28 Added sort facility in client and backend server interface.
30 Fixed problem with dependencies in Makefile(s).
32 Fixed bugs for encoders/decoders of extended services and
35 Implemented sub-tree feature for schemas. Sub-trees are
36 referenced in *.abs-files. See explain.abs for an example
37 of the use of this feature.
39 Modified bib1.att; local attributes for ANY didn't include
40 ANY itself (only affects use of the retrieval module).
42 Fixed bug in plain SGML reader in function data1_read_node:
43 tags with prefix "var" was incorrectly interpreted as variants.
45 Added feature "sub-schemas" to enable references to - and definitions
46 of - group of elements.
48 * Removed member parent from type data1_element (in data1.h).
50 Implemented function odr_nullval() that returns the value of
53 * Removed member num_children from data1_node (in data1.h).
55 Made NT service interface part of the server library. The
56 function statserv_main uses the NT service when required and
57 calls the statserv_start / statserv_close routines.
59 Routine zget_SearchRequest and zget_PresentRequest fills
60 resultSetName/Id member with "default" instead of "Default".
62 Fixed memory leak in server. Request queue member wasn't freed.
64 Fixed nmem_exit so that memory is freed.
68 Revised the CCL parser utility to be thread safe.
70 Added function, oid_ent_to_oid, to replace the function
71 oid_getoidbyent, which is not thread safe.
73 * Added nmem_init and nmem_exit to initialize and release
74 NMEM resources. Function nmem_init should be called once in the
75 initial thread before NMEM/ODR is used. statserv.c and client.c
76 have been changed accordingly. The change was necessary to make
77 NMEM thread safe. The NMEM memory pool is shared amongst threads
78 in a process. Unix-based applications will still work fine without
81 Added NT Services interface for the the Z39.50 (statserv) Server.
82 Refer to the ztest.c source on the usage.
84 Windows 95/NT port using MSVC5.0. Project files are included in the
87 * Defined new 'global' handle for the retrieval (data1) system. The
88 new handled, data1_handle, describes the state of the data1 system.
89 This handle is passed as first argument to virtually all
90 data1 related routines. The functions data1_create and data1_destroy
91 creates and destroys a data1 handle respectively.
93 Added ODR encode stream member to all backend request structures
94 init, search, scan etc. This stream should be used to allocate all
95 memory used for the response when thread safe operation is needed.
97 Changed the comstack utility, cs_addstr, to be thread safe. The
98 returned hostname string returned by the function is now part the
101 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
102 function. The cs_straddr takes a COMSTACK handle as argument, so this
103 function must be used after cs_create and before bind/connect.
104 This function is thread safe.
106 Moved test server to 'ztest' directory - generic server code still
107 in 'server' directory.
109 Made prefix query (pquery.c) utility thread safe.
111 Added new function modifier YAZ_EXPORT to 'export' public DLL
112 functions when using windows (see include/yconfig.h).
114 Added definitions to the OID database (util/oid.c) (RVDM).
116 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
118 Added call to ccl_rpn_delete in client program.
120 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
121 release of RPN structure.
123 Added support for C++, headers uses extern "C" for public definitions.
124 With input from RVDM.
126 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
127 Thanks to Ronald van der Meer (RVDM).
129 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
131 Added support for private extensions to the OID database
132 (oid_setprivateoids()). Thanks to RVDM.
134 Added optional, physical ANY (key replication)
136 Fixed null-reference problem in GRS-1 output filter.
138 Proximity operator added to Prefix Query Format (PQF).
140 In test client command "base" accepts multiple databases.
142 Fixed bug in cs_close stack that caused trouble with WINSOCK.
146 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
148 Smallish bug-fixes in the new encoders/decoders (explain).
150 Bug fixed in DeleteRequest.
152 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
154 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
156 Added SOIF syntax (using private OID for now) to retrieval module and client.
158 Added Update extended service.
160 Added SearchResult-1 additional info structure.
162 Added optional CCL (ISO8777) interpreter as separate module. Available
165 --- 1.2 1996/6/10 (1st anniversary release)
167 Added Summary record syntax. Lightly tested.
169 Added OPAC record syntax. Untested.
171 Added ResourceReport service encoders/decoders. Untested.
173 Fixed bug in z_Unit - wrong tagging on unitSystem.
175 Fixed bug in the DiagRecs decoder.
177 Added options for max PDU size and session timeout to frontend-server.
179 Added documentation of query-language parsers and other supporting utilities.
181 [frontend-server] Added Attribute set to the bend_scanrequest API.
183 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
184 surrogate diagnostics were generated.
186 [retrieval] Allow multiple local values for attribute.
188 [retrieval] Allow multiple attributes per element in .abs files. index type.
190 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
194 Minor changes, mostly specific to Zebra's requirements (retrieval)
198 Repaired bug in frontend server when running multiple listening
199 endpoints in dynamic mode.
201 z_External() now won't break if a known, ASN.1 value comes encapsulated
202 in an octet-string. The value will pass through unmodified in an Odr_oct.
204 Added a bit of code to the demo client to decode & display
205 ASN.1-structured records represented in the octet-aligned branch of
206 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
208 Added z_ext_getentbyref() to the ASN module. Doc updated.
210 * Completed the SCAN definition in the ASN module. This may break SCAN
211 code based on older YAZ-versions at compile-time. The fix is easy -
214 * Added 'displayTerm' and OtherInformation to the TermInfo structure
215 under the SCAN definition. Remember to initialize this, server-people.
217 Comstack should now support the WAIS protocol in TCP/IP mode. Note
218 that this does not extend to ODR and ASN.
220 Comstack allows insertion of established socket (primarily for
221 inetd-operation of servers). Doc updated.
223 Front-end server can now start from the inetd in TCP mode. Doc
230 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
231 the rank and record number.
233 Adjustments to the frontend server.
235 Fixed diagnostic BER dumper. It ignored the file argument.
239 Various changes to retrieval module.
241 Changed the union discriminators of the protocol files from enums to
242 ints paired with #defines.
244 *Changed oident.class to oident.oclass to avoid a reserved word in C++
247 *Changed operator in the RPN structure to 'roperator', again to avoid a
250 Fixed problems in Explain decoders/encoders.
254 Memory bug in log module fixed.
258 Occasional malloc() of 0 bytes fixed in d1_espec.c.
260 Bug in Explain DatabaseInfo module fixed.
262 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
266 The shift to v1.0 signals that we now consider the *core* functionality
267 of YAZ reasonably stable (the core being more or less equivalent to
268 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
269 tested (Explain not at all - though that will happen soonish).
271 Minor changes to code to support Windows port.
273 Various minor changes after we're getting to use GRS-1 & co. more.
275 Added Espec-1 format.
277 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
278 of the protocol and it cannot be selected when encoding (maps into 'string'
279 when decoding). Needed to talk to some servers.
281 Demo client can request simple element set names.
283 Added Diagnostic Format encoders/decoders.
285 Added simple Close handling to frontend server (no hooks for resource
286 reporting yet), and demonstration client.
288 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
292 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
293 handled incorrectly when records were requested in the searchResponse. This
294 will only affect you if you use the frontend-server.
296 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
297 Test-client will ask for and print GRS1. Ztest will return dummy records
300 Added Explain encoders/decoders to the service-level API. Untested.
302 Added Extended Services: Item Order encoders and decoders to the Service-
303 level API. Untested. We could use a recent copy of the pertinent bits
304 of the ILL protocol to add those bits.
306 Added diagnostic format 1 encoders/decoders to the service-level API.
309 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
310 odr_cons.c, which causes a more correct output.
312 Fixed handling of searchRequest in frontend server. NextResultSetPosition
313 was always set to 0 when no records were requested in the searchRequest.
315 * Added better external-handling. This shouldn't harm old code that
316 *encodes* externals. It can break code that looks for a
317 'single-ASN1-type' representation, since those types that are known
318 are now decoded immediately. Look at the SUTRS sample code in
319 seshigh.c and client.c. Documentation updated.
321 Handling of structured records in bend_fetchresponse. Length -1 marks
322 structured record, type is deduced from format field.
325 Fairly quick maintenance release to add SUTRS support.
327 Fixed handling of SUTRS records in the demonstration client.
329 * Added format field to the bend_fetchrequest and bend_fetchresponce
330 structures of the backend API (frontend server). When the record is
331 returned, the value of the format field is mapped to an OID. The
332 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
333 of the record. The special value VAL_NONE in the bend_request means
334 that no specific format was requested by the client. Documentation
335 updated accordingly. Test server (ztest) will return a fixed dummy
336 SUTRS record if your client requests SUTRS.
338 Documentation updated accordingly.
340 You can now set external libraries and RANLIB support in the top-level
344 First public release.