/usr/share/openmediavault/mkconf `ifconfig` patch

<>

#!/usr/bin/env bash

IFACE=__

# Existing:
d_get_ipv4_definition()
{
    ifconfig "$1" | grep "inet addr:"
}

d_get_ip()
{
    d_get_ipv4_definition "$1" | cut -d: -f2 | cut -d" " -f1
}

d_get_mask()
{
    d_get_ipv4_definition "$1" | cut -d: -f4 | cut -d" " -f1
}

d_get_subnet()
{
    local ip=$(d_get_ip "$1")
    local mask=$(d_get_mask "$1")
    local IFS='.' subnet i
    local -a oct msk
    read -ra oct <<< "$ip"
    read -ra msk <<< "$mask"

    for i in ${!oct[@]}; do
        subnet+=( "$(( oct[i] & msk[i] ))" )
    done

    echo "${subnet[*]}"
}

d_get_ipv4_definition "${IFACE}"
d_get_ip "${IFACE}"
d_get_mask "${IFACE}"
d_get_subnet "${IFACE}"

# Modified:
get_ipv4_definition()
{
    ifconfig "$1" | grep "inet " | xargs
}

get_ip()
{
    get_ipv4_definition "$1" | cut -d' ' -f2
}

get_mask()
{
    get_ipv4_definition "$1" | cut -d' ' -f4
}

get_subnet()
{
    local ip=$(get_ip "$1")
    local mask=$(get_mask "$1")
    local IFS='.' subnet i
    local -a oct msk
    read -ra oct <<< "$ip"
    read -ra msk <<< "$mask"

    for i in ${!oct[@]}; do
        subnet+=( "$(( oct[i] & msk[i] ))" )
    done

    echo "${subnet[*]}"
}

echo
get_ipv4_definition "${IFACE}"
get_ip "${IFACE}"
get_mask "${IFACE}"
get_subnet "${IFACE}"