group-patch-android.sh

#!/bin/sh

groupList() {
cat <<EOF
net_bt_admin:x:3001
net_bt:x:3002
inet:x:3003
net_raw:x:3004
net_admin:x:3005
net_bw_stats:x:3006
net_bw_acct:x:3007
net_bt_stack:x:3008
sdcard_r:x:1028
EOF
}

patchGroup() {
    [ -e /etc/group ] || {
        echo "Do not run this script at outside!"
        exit 1
    }
    grep -q "net_bt_admin" /etc/group || {
        groupList >> /etc/group
    }
}

patchUser() {
    local user="${1}"
    [ x${user} = "x" ] && return
    groupList | while read group; do
        group=$(echo ${group} | cut -d':' -f1)
        gpasswd -a "${user}" ${group} || return
    done
}

main() {
    [ ${#} -lt 1 ] && {
        echo "${0} <username>"
        exit 0
    }; local user="${1}";
    patchGroup
    patchUser "${user}"
}; main "${@}";