opnsense-src/lib/libc/db
Brian Feldman 429d49129b Fix a tailq conversion bug that resulted in, e.g., nvi crashing upon
quitting every time.  The way to free a CIRCLEQ was to loop until
the current == current->head, but the way to free a TAILQ is to loop
until current->head == NULL.

In any case, the CORRECT way to do it is a loop of TAILQ_EMPTY() checks
and TAILQ_REMOVE()al of TAILQ_FIRST().  This bug wouldn't have happened
if the loop wasn't hard-coded...

There may be more bugs of this type from the conversion.
2000-12-30 16:10:32 +00:00
..
btree More secure temporary filename. This needs to be revisited to use 2000-11-02 10:14:09 +00:00
db $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
docs $Header$ -> $FreeBSD$ 1999-08-28 05:11:36 +00:00
hash cleanup the tsearch import. 2000-07-06 20:04:34 +00:00
man $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
mpool Fix a tailq conversion bug that resulted in, e.g., nvi crashing upon 2000-12-30 16:10:32 +00:00
recno Use size_t rather than a 16-bit data type fo the length. 2000-11-07 22:19:23 +00:00
test Prevent TMPDIR overflow. 2000-08-04 10:50:21 +00:00
changelog Fix conflicts and merge into mainline 1996-02-27 19:42:00 +00:00
Makefile.inc $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
README Fix conflicts and merge into mainline 1996-02-27 19:42:00 +00:00

#	@(#)README	8.27 (Berkeley) 9/1/94

This is version 1.85 of the Berkeley DB code.

For information on compiling and installing this software, see the file
PORT/README.

Newer versions of this software will periodically be made available by
anonymous ftp from ftp.cs.berkeley.edu.  An archive in compressed format
is in ucb/4bsd/db.tar.Z, or in gzip format in ucb/4bsd/db.tar.gz.  If
you'd like to receive announcements of future releases of this software,
send email to the contact address below.

Email questions may be addressed to Keith Bostic at bostic@cs.berkeley.edu.

============================================
Distribution contents:

Makefile.inc	Ignore this, it's the 4.4BSD subsystem Makefile.
PORT		The per OS/architecture directories to use to build
		libdb.a, if you're not running 4.4BSD.  See the file
		PORT/README for more information.
README		This file.
btree		The B+tree routines.
changelog	List of changes, per version.
db		The dbopen(3) interface routine.
docs		Various USENIX papers, and the formatted manual pages.
hash		The extended linear hashing routines.
man		The unformatted manual pages.
mpool		The memory pool routines.
recno		The fixed/variable length record routines.
test		Test package.

============================================
Debugging:

If you're running a memory checker (e.g. Purify) on DB, make sure that
you recompile it with "-DPURIFY" in the CFLAGS, first.  By default,
allocated pages are not initialized by the DB code, and they will show
up as reads of uninitialized memory in the buffer write routines.