1 Possible compatibility problems with earlier versions marked with '*'.
3 Implemented function odr_nullval() that returns the value of
6 * Removed member num_children from data1_node (in data1.h).
8 Made NT service interface part of the server library. The
9 function statserv_main uses the NT service when required and
10 calls the statserv_start / statserv_close routines.
13 Routine zget_SearchRequest fills resultSetName member with "default"
16 Fixed memory leak in server. Request queue member wasn't freed.
18 Fixed nmem_exit so that memory is freed.
22 Revised the CCL parser utility to be thread safe.
24 Added function, oid_ent_to_oid, to replace the function
25 oid_getoidbyent, which is not thread safe.
27 * Added nmem_init and nmem_exit to initialize and release
28 NMEM resources. Function nmem_init should be called once in the
29 initial thread before NMEM/ODR is used. statserv.c and client.c
30 have been changed accordingly. The change was necessary to make
31 NMEM thread safe. The NMEM memory pool is shared amongst threads
32 in a process. Unix-based applications will still work fine without
35 Added NT Services interface for the the Z39.50 (statserv) Server.
36 Refer to the ztest.c source on the usage.
38 Windows 95/NT port using MSV5.0. Project files are included in the
41 * Defined new 'global' handle for the retrieval (data1) system. The
42 new handled, data1_handle, describes the state of the data1 system.
43 This handle is passed as first argument to virtually all
44 data1 related routines. The functions data1_create and data1_destroy
45 creates and destroys a data1 handle respectively.
47 Added ODR encode stream member to all backend request structures
48 init, search, scan etc. This stream should be used to allocate all
49 memory used for the response when thread safe operation is needed.
51 Changed the comstack utility, cs_addstr, to be thread safe. The
52 returned hostname string returned by the function is now part the
55 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
56 function. The cs_straddr takes a COMSTACK handle as argument, so this
57 function must be used after cs_create and before bind/connect.
58 This function is thread safe.
60 Moved test server to 'ztest' directory - generic server code still
61 in 'server' directory.
63 Made prefix query (pquery.c) utility thread safe.
65 Added new function modifier YAZ_EXPORT to 'export' public DLL
66 functions when using windows (see include/yconfig.h).
68 Added definitions to the OID database (util/oid.c) (RVDM).
70 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
72 Added call to ccl_rpn_delete in client program.
74 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
75 release of RPN structure.
77 Added support for C++, headers uses extern "C" for public definitions.
80 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
81 Thanks to Ronald van der Meer (RVDM).
83 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
85 Added support for private extensions to the OID database
86 (oid_setprivateoids()). Thanks to RVDM.
88 Added optional, physical ANY (key replication)
90 Fixed null-reference problem in GRS-1 output filter.
92 Proximity operator added to Prefix Query Format (PQF).
94 In test client command "base" accepts multiple databases.
96 Fixed bug in cs_close stack that caused trouble with WINSOCK.
100 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
102 Smallish bug-fixes in the new encoders/decoders (explain).
104 Bug fixed in DeleteRequest.
106 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
108 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
110 Added SOIF syntax (using private OID for now) to retrieval module and client.
112 Added Update extended service.
114 Added SearchResult-1 additional info structure.
116 Added optional CCL (ISO8777) interpreter as separate module. Available
119 --- 1.2 1996/6/10 (1st anniversary release)
121 Added Summary record syntax. Lightly tested.
123 Added OPAC record syntax. Untested.
125 Added ResourceReport service encoders/decoders. Untested.
127 Fixed bug in z_Unit - wrong tagging on unitSystem.
129 Fixed bug in the DiagRecs decoder.
131 Added options for max PDU size and session timeout to frontend-server.
133 Added documentation of query-language parsers and other supporting utilities.
135 [frontend-server] Added Attribute set to the bend_scanrequest API.
137 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
138 surrogate diagnostics were generated.
140 [retrieval] Allow multiple local values for attribute.
142 [retrieval] Allow multiple attributes per element in .abs files. index type.
144 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
148 Minor changes, mostly specific to Zebra's requirements (retrieval)
152 Repaired bug in frontend server when running multiple listening
153 endpoints in dynamic mode.
155 z_External() now won't break if a known, ASN.1 value comes encapsulated
156 in an octet-string. The value will pass through unmodified in an Odr_oct.
158 Added a bit of code to the demo client to decode & display
159 ASN.1-structured records represented in the octet-aligned branch of
160 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
162 Added z_ext_getentbyref() to the ASN module. Doc updated.
164 * Completed the SCAN definition in the ASN module. This may break SCAN
165 code based on older YAZ-versions at compile-time. The fix is easy -
168 * Added 'displayTerm' and OtherInformation to the TermInfo structure
169 under the SCAN definition. Remember to initialize this, server-people.
171 Comstack should now support the WAIS protocol in TCP/IP mode. Note
172 that this does not extend to ODR and ASN.
174 Comstack allows insertion of established socket (primarily for
175 inetd-operation of servers). Doc updated.
177 Front-end server can now start from the inetd in TCP mode. Doc
184 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
185 the rank and record number.
187 Adjustments to the frontend server.
189 Fixed diagnostic BER dumper. It ignored the file argument.
193 Various changes to retrieval module.
195 Changed the union discriminators of the protocol files from enums to
196 ints paired with #defines.
198 *Changed oident.class to oident.oclass to avoid a reserved word in C++
201 *Changed operator in the RPN structure to 'roperator', again to avoid a
204 Fixed problems in Explain decoders/encoders.
208 Memory bug in log module fixed.
212 Occasional malloc() of 0 bytes fixed in d1_espec.c.
214 Bug in Explain DatabaseInfo module fixed.
216 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
220 The shift to v1.0 signals that we now consider the *core* functionality
221 of YAZ reasonably stable (the core being more or less equivalent to
222 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
223 tested (Explain not at all - though that will happen soonish).
225 Minor changes to code to support Windows port.
227 Various minor changes after we're getting to use GRS-1 & co. more.
229 Added Espec-1 format.
231 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
232 of the protocol and it cannot be selected when encoding (maps into 'string'
233 when decoding). Needed to talk to some servers.
235 Demo client can request simple element set names.
237 Added Diagnostic Format encoders/decoders.
239 Added simple Close handling to frontend server (no hooks for resource
240 reporting yet), and demonstration client.
242 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
246 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
247 handled incorrectly when records were requested in the searchResponse. This
248 will only affect you if you use the frontend-server.
250 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
251 Test-client will ask for and print GRS1. Ztest will return dummy records
254 Added Explain encoders/decoders to the service-level API. Untested.
256 Added Extended Services: Item Order encoders and decoders to the Service-
257 level API. Untested. We could use a recent copy of the pertinent bits
258 of the ILL protocol to add those bits.
260 Added diagnostic format 1 encoders/decoders to the service-level API.
263 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
264 odr_cons.c, which causes a more correct output.
266 Fixed handling of searchRequest in frontend server. NextResultSetPosition
267 was always set to 0 when no records were requested in the searchRequest.
269 * Added better external-handling. This shouldn't harm old code that
270 *encodes* externals. It can break code that looks for a
271 'single-ASN1-type' representation, since those types that are known
272 are now decoded immediately. Look at the SUTRS sample code in
273 seshigh.c and client.c. Documentation updated.
275 Handling of structured records in bend_fetchresponse. Length -1 marks
276 structured record, type is deduced from format field.
279 Fairly quick maintenance release to add SUTRS support.
281 Fixed handling of SUTRS records in the demonstration client.
283 * Added format field to the bend_fetchrequest and bend_fetchresponce
284 structures of the backend API (frontend server). When the record is
285 returned, the value of the format field is mapped to an OID. The
286 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
287 of the record. The special value VAL_NONE in the bend_request means
288 that no specific format was requested by the client. Documentation
289 updated accordingly. Test server (ztest) will return a fixed dummy
290 SUTRS record if your client requests SUTRS.
292 Documentation updated accordingly.
294 You can now set external libraries and RANLIB support in the top-level
298 First public release.