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# Main program file
#
# Copyright (C) 2013, 2014 Patrick McDermott
#
# This file is part of the ProteanOS Development Kit.
#
# The ProteanOS Development Kit is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# The ProteanOS Development Kit 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 the ProteanOS Development Kit. If not, see
# <http://www.gnu.org/licenses/>.
set -eu
# Constant global variables
HT=' '
LF='
'
OPTSTRING='hV'
if [ -f "${0%/*}/.builddirstamp" ]; then
in_place=true
builddir="${0%/*}"
else
in_place=false
builddir=''
fi
time()
{
# Based on code from <https://www.etalabs.net/sh_tricks.html> by Rich
# Felker, with whitespace added for readability.
printf '%d' $(($(TZ=UTC0 date "+
(
(%Y - 1600) * 365
+ (%Y - 1600) / 4
- (%Y - 1600) / 100
+ (%Y - 1600) / 400
+ 1%j - 1000
- 135140
) * 86400
+ (1%H - 100) * 3600
+ (1%M - 100) * 60
+ (1%S - 100)")))
}
main()
{
local cmd=
local es=
if ! load_locale; then
return 2
fi
if ! get_options "${@}"; then
cmd_help_main >&2
return 1
fi
shift $((${OPTIND} - 1))
if ${opt_h:-false}; then
cmd='help'
elif ${opt_V:-false}; then
cmd='version'
elif [ ${#} -lt 1 ]; then
cmd_help_main >&2
return 1
else
cmd="${1}"
shift
fi
srand $((${$} + $(time)))
if ! init_vardata; then
return 2
fi
case "${cmd}" in
'help'|'version') ;;
*)
if ! check_uid; then
error "$(get_msg 'uid_0_req')"
return 1
fi
;;
esac
run_cmd "${cmd}" "${@}"
es=${?}
if ! fini_vardata; then
return 2
fi
return ${es}
}
check_uid()
{
local uname_s=
local uid=
uname_s="$( (uname -s) 2>/dev/null)" || uname_s='unknown'
uid="$(id -u)"
case "${uname_s}" in
'Linux')
if [ ${uid} -ne 0 ]; then
return 1
fi
;;
esac
return 0
}
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