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#! /bin/sh
#############################################################################
# Copyright (c) 2014-2016 Balabit
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# As an additional exemption you are allowed to compile & link against the
# OpenSSL libraries as published by the OpenSSL project. See the file
# COPYING for details.
#
#############################################################################
set -e
cfg="$(mktemp)"
out="$(mktemp)"
get_version() {
syslog-ng -V | grep "Config version:" | cut -d ':' -f 2 | sed -e 's/^[ \t]*//'
}
create_config () {
local cfg="$1"
local version=$(get_version)
cat >"${cfg}" <<EOF
@version: current
@include "scl.conf"
source s_system {
# ----- Cut here -----
system();
# ----- Cut here -----
};
EOF
}
process_config () {
local cfg="$1"
local out="$2"
syslog-ng -f "${cfg}" \
--syntax-only \
--preprocess-into="${out}" \
--no-caps \
>/dev/null 2>/dev/null
}
extract_system_source () {
local out="$1"
local IFS_SAVE="${IFS}"
IFS="
"
local print=0
echo "## system() expands to:"
echo
for line in $(cat "${out}"); do
case "${line}" in
"# ----- Cut here -----")
if test ${print} -eq 0; then
print=1
else
print=0
fi
;;
*)
if test ${print} -eq 1; then
echo "${line}"
fi
;;
esac
done
}
cleanup () {
local cfg="$1"
local out="$2"
rm -f "${cfg}" "${out}"
}
create_config "${cfg}"
process_config "${cfg}" "${out}"
extract_system_source "${out}"
cleanup "${cfg}" "${out}"
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