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+
+ OSSP l2 -- Flexible Logging
+ Version 0.9.10 (18-Feb-2005)
+
+ ABSTRACT
+
+ OSSP l2 is a C library providing a very flexible and sophisticated
+ Unix logging facility. It is based on the model of arbitrary number of
+ channels, stacked together in a top-down data flow tree structure with
+ filtering channels in internal nodes and output channels on the leave
+ nodes.
+
+ Channel trees can be either constructed manually through lower-level
+ API functions or all at once with a single API function controlled by
+ a compact syntactical description of the channel tree. For generating
+ log messages a printf-style formatting engine is provided which can be
+ extended through callback functions. The data flow inside the channel
+ tree is controlled by (eight fixed and nine custom) logging message
+ severity levels which are assigned to each individual channel.
+
+ Channels are implemented by channel handlers which can be even
+ customer supplied for creating own channels which seamlessly integrate
+ into the framework. For convenience reasons, OSSP l2 already ships
+ with pre-implemented filtering (noop, filter, prefix, buffer) and
+ output (null, fd, file, pipe, socket, syslog, smtp) channels which
+ already cover mostly all use cases of logging.
+
+ COPYRIGHT AND LICENSE
+
+ Copyright (c) 2001-2004 Cable & Wireless <http://www.cw.com/>
+ Copyright (c) 2001-2004 The OSSP Project <http://www.ossp.org/>
+ Copyright (c) 2001-2004 Ralf S. Engelschall <rse@engelschall.com>
+
+ This file is part of OSSP l2, a flexible logging library which
+ can be found at http://www.ossp.org/pkg/lib/l2/.
+
+ Permission to use, copy, modify, and distribute this software for
+ any purpose with or without fee is hereby granted, provided that
+ the above copyright notice and this permission notice appear in all
+ copies.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ HOME AND DOCUMENTATION
+
+ The documentation and latest release can be found on
+
+ o http://www.ossp.org/pkg/lib/l2/
+ o ftp://ftp.ossp.org/pkg/lib/l2/
+
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