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#!/usr/local/bin/perl
#
# ====================================================================
# Copyright (c) 1995-1999 The Apache Group.  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer. 
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#
# 3. All advertising materials mentioning features or use of this
#    software must display the following acknowledgment:
#    "This product includes software developed by the Apache Group
#    for use in the Apache HTTP server project (http://www.apache.org/)."
#
# 4. The names "Apache Server" and "Apache Group" must not be used to
#    endorse or promote products derived from this software without
#    prior written permission.  For permission please contact
#    Apache@Apache.Org.
#
# 5. Products derived from this software may not be called "Apache"
#    nor may "Apache" appear in their names without prior written
#    permission of the Apache Group.
#
# 6. Redistributions of any form whatsoever must retain the following
#    acknowledgment:
#    "This product includes software developed by the Apache Group
#    for use in the Apache HTTP server project (http://www.apache.org/)."
#
# THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``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 APACHE GROUP OR
# ITS 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.
# ====================================================================
#
# This software consists of voluntary contributions made by many
# individuals on behalf of the Apache Group and was originally based
# on public domain software written at the National Center for
# Supercomputing Applications, University of Illinois, Urbana-Champaign.
# For more information on the Apache Group and the Apache HTTP server
# project, please see <http://www.apache.org/>.
#

#
# This script will take a combined Web server access
# log file and break its contents into separate files.
# It assumes that the first field of each line is the
# virtual host identity (put there by "%v"), and that
# the logfiles should be named that+".log" in the current
# directory.
#
# The combined log file is read from stdin. Records read
# will be appended to any existing log files.
#
%is_open = ();

while ($log_line = <STDIN>) {
    #
    # Get the first token from the log record; it's the
    # identity of the virtual host to which the record
    # applies.
    #
    ($vhost) = split (/\s/, $log_line);
    #
    # Normalize the virtual host name to all lowercase.
    # If it's blank, the request was handled by the default
    # server, so supply a default name.  This shouldn't
    # happen, but caution rocks.
    #
    $vhost = lc ($vhost) or "access";
    #
    # If the log file for this virtual host isn't opened
    # yet, do it now.
    #
    if (! $is_open{$vhost}) {
        open $vhost, ">>${vhost}.log"
            or die ("Can't open ${vhost}.log");
        $is_open{$vhost} = 1;
    }
    #
    # Strip off the first token (which may be null in the
    # case of the default server), and write the edited
    # record to the current log file.
    #
    $log_line =~ s/^\S*\s+//;
    printf $vhost "%s", $log_line;
}
exit 0;