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@@ -0,0 +1,256 @@ +GNU dbm NEWS -- history of user-visible changes. 2013-12-25 +Copyright (C) 1990-2013 Free Software Foundation, Inc. +See the end of file for copying conditions. + +Please send gdbm bug reports to <bug-gdbm@gnu.org>. + +Version 1.11, 2013-12-25 + +* Improved dump format. + +A new dump format is implemented, which encodes all data in base64 and +stores not only key/data pairs, but also the original database file +metadata, such as file name, mode and ownership. Files in this format +can be sent without additional encapsulation over transmission +channels that normally allow only ASCII data. Dumps in this format +allow for restoring an exact copy of the database, including file +ownership and privileges. + +* New function: gdbm_count + + int gdbm_count (GDBM_FILE *file, gdbm_count *count); + +Counts records in `file' and stores the result in the memory location +pointed to by `count'. + +* New utilities: gdbm_dump and gdbm_load. + +Gdbm_dump creates a plain-text dump of the GDBM database. This dump +can be used to create an exact copy of the database afterward. + +The gdbm_load performs the reverse: given the dump file, it creates a +GDBM database. Apart from native GDBM dump formats, it also understands +the format generated by Berkeley DB db_dump utility. Thus, an easy +way to convert a Berkeley DB database to GDBM is: + + db_dump input.db | gdbm_load output.db + +* gdbmtool + +The gdbmtool utility allows you to examine, modify or create GDBM +databases. It provides an easy-to-use interactive shell and can +be used for scripting. One of the unique features of gdbmtool is that +it allows to define datum structures for key and content parts, similarly +to the C "struct" declarations, and to input and display such +structured data. + + +Version 1.10, 2011-11-13 + +* Internationalization + +This version of GDBM is fully internationalized. The following +localizations are available: Finnish, German, Japanese, Polish and Ukrainian. + +* Support for close-on-exec flag in gdbm_open (see GDBM_CLOEXEC in the docs). + +* Improve testgdbm command system + +The testgdbm tool now supports multicharacter commands. + +* Bugfixes + +Bug numbers below refer to the tracker at <http://puszcza.gnu.org.ua/bugs/?N> + +** Bug #150. +Tolerate I/O operations returning less bytes than expected. Retry I/O +if possible. + +** Bug #151 +Gdbm_open now initializes with zeros the memory allocated for file +header. Previous versions left uninitialized portions intact, so +they contained whatever happened to be in that memory region at the +moment of allocation. This created undesired security implications. + +** Fix handling of NDBM databases in read-only mode. + + +Version 1.9.1 + +* Bugfix + +Improperly used preprocessor directive caused compilation failure +when using gcc 4.4.4 or newer. + + +Version 1.9, 2011-08-12 + +* Use of mmap + +To speed up I/O operations, mmap(2) is used when available. +It can be disabled at compile time using --disable-memory-mapped-io, +and at run time by giving GDBM_NOMMAP flag to gdbm_open. + +* Changes in compatibility mode + +The changes below fix several long-standing bugs in +ndbm compatibility code, which made it impossible to +use GDBM with Sendmail and Postfix. Now that they are +fixed, GDBM can be used with these MTAs. + +** Locking is disabled. + +Neither ndbm nor dbm functions lock their files. + +This bug was reported, in particular, in +https://bugzilla.redhat.com/show_bug.cgi?id=663932 + +** Do not link pag to dir. + +Instead of linking pag to dir as previous versions did, GDBM now +creates a separate dir file. Consequently, dbm_pagfno and +dbm_dirfno return different file descriptors. + +When opening an existing database as a writer, GDBM determines +if dir is linked to pag, and if so breaks the link and creates +a new dir file. When such a database is opened in a read-only +mode, GDBM does not attempt to alter the link. + +* gdbm_setopt + +New options are implemented for use with gdbm_setopt function. +In particular, a set of options is provided for retrieving various +database parameters, such as the file name, memory mapping status, +etc. + +* The testgdbm program is installed + +Testgdbm is an interactive tool for manipulating GDBM database files. +It allows you to view or update existing databases, export +them to the portable flat file format and to create new database files. + +* A testsuite is provided. + +* Improved documentation. + +Version 1.8.3 + +* Various configure related changes and additional updates. + +Version 1.8.2 + +* Allow `NEWDB'-opened databases to actually, well, store records. + +Version 1.8.1 + +* Lots of bug fixes, including a data corruption bug. +* Updated to current autoconf and libtool. +* Moved the dbm/ndbm compatibility routines to libgdbm_compat. + +Version 1.8 + +* Added GDBM_CENTFREE functionality and option. +* Added GDBM_COALESCEBLKS functionality and option. +* Added GDBM_NOLOCK flag. +* Made ``fast'' mode the default, making GDBM_FAST obsolete, and adding + the GDBM_SYNC flag and GDBM_SYNCMODE option. +* Switched to building with libtool. + +Version 1.7.3 + +* Fixed a couple of last minute problems. + +Namely, no autoconf.h in version.c, and no GDBM_FASTMODE in gdbm.h! + +* Fixed some documentation bugs. + +Version 1.7.2 + +* Enhanced portability and compile/installation changes. +* Additional, "fast mode" related gdbm_setopt() option. +* Growth problems bug fix. + +Version 1.7.1 + +* Enhanced portabilty and compile/installation bug fixes. +* Switched over to using an auto config header. +* Slight documentation upgrade. + +Version 1.7 + +* A new dynamic, delayed initialization, bucket cache. +* New gdbm_setopt(), gdbm_exists(), and gdbm_strerror() routines. +* Slightly improved dbm/ndbm compatibility. +* Greatly improved portability to 64 or 16 bit machines. +* Various bug fixes. + +Version 1.6 + +* New documentation in both man and texinfo formats. +* Bug fixes. +* A New "writers" mode that does not fsync the database. +* Uses Autoconf now. + +Version 1.5 + +* Minor bug fixes. See the ChangeLog. +* Added gdbmconst.h to allow users to change the size of the +* bucket cache in the systems.h file. + +Version 1.4 + +* Mainly bug fixes +* A define for "dbmclose()" was added to dbm.h for those few + implementaions that need that call. +* For details, see the ChangeLog. + +Version 1.0 + +* Makefiles were combined into one and a few new things added to it. +* Several minor bugs were fixed including a cache bug. +* Two new calls (dbm_pagfno, dbm_dirfno) were added to the NDBM interface. +* A conversion program from dbm files to gdbm files was added. +* Reorganize was changed to allow complex file names. (dir/file form) +* testgdbm, testndbm, and testdbm were modified to return key and data + pairs where needed and to take an optional file name as an argument. + testgdbm had some command characters changed. +* The DBM and NDBM interfaces were separated. +* An include file for dbm users was added. (dbm.h) +* The include file for ndbm users was renamed ndbm.h. (It was gndbm.h.) + +Version 0.9 + +* The hash function changed. +* The file format changed. +* There was a complete rewrite of falloc.c. +* There were added compatiblity routines for ndbm. +* The file names for dbm compatibility routines were made to look like dbm. +* Test programs changed. +* Support for System V. +* Various other small changes. +* The need for recovery and associated code was removed. + + +---------------------------------------------------------------------- +Copyright information: + +Copyright (C) 1990-2013 Free Software Foundation, Inc. + + Permission is granted to anyone to make or distribute verbatim copies + of this document as received, in any medium, provided that the + copyright notice and this permission notice are preserved, + thus giving the recipient permission to redistribute in turn. + + Permission is granted to distribute modified versions + of this document, or of portions of it, + under the above conditions, provided also that they + carry prominent notices stating who last changed them. + +Local variables: +mode: outline +paragraph-separate: "[ ]*$" +eval: (add-hook 'write-file-hooks 'time-stamp) +time-stamp-start: "changes. " +time-stamp-format: "%:y-%02m-%02d" +time-stamp-end: "\n" +end: |