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#!/bin/sh
PREFIX=
PROGRAM=`basename $0`
echon () {
if [ X"$ECHON" = X ]; then
# Determine how to "echo" without newline: "echo -n"
# or "echo ...\c"
if [ X`echo -n` = X-n ]; then
ECHON=echo
NNL="\c"
# "
else
ECHON="echo -n"
NNL=""
fi
fi
$ECHON "$*$NNL"
}
init_tmpdir() {
local omask=`umask`
local __tmpd="/tmp/$PROGRAM-${$}-`date +%s`"
umask 077 || die "umask"
mkdir "$__tmpd" || exit 1
trap "rm -fr \"$__tmpd\"; exit" 0
umask $omask
eval "$1=\"$__tmpd\""
}
pkg_inst() {
[ -z "$NOCOMMIT" ] && apk_add $*
}
pkg_deinst() {
[ -z "$NOCOMMIT" ] && apk_delete $*
}
default_read() {
local n
read n
[ -z "$n" ] && n="$2"
eval "$1=\"$n\""
}
invalid_ip() {
[ "$1" ] || return 0
! ipcalc -s $1
}
cfg_add() {
[ -z "$NOCOMMIT" ] && lbu_add "$@"
}
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