#!/usr/bin/perl
#
#  plugin
#    |
#    +--rev (revision information)
#    |
#    +--dropbear
#         |
#         +--upgrade_script (one time use, executable)
#         |
#         +--SSH
#              |
#              +--plugin.conf (configuration information)
#              |
#              +--etc
#              |    |
#              |    +--dropbear.conf
#              |
#              +--sbin
#                   |
#                   +--dropbearmulti
#                   |
#                   +--ssh_start (service start script, executable)
#

$cp_cmd      = "/bin/cp";
$df_cmd      = "/bin/df";
$mkdir_cmd   = "/bin/mkdir";

$cfg_dir     = "/data/usr/local/dropbear/etc";
$cfg_file    = "dropbear.conf";

# search installed path
#first_volume="";
open(IN,"$df_cmd |");
while(<IN>){
    if (/(VOLUME\d+)/) {
        if ( -d "/$1/PLUGINAPP/SSH" ) {
            $app_path = "/$1/PLUGINAPP/SSH";
            last;
        }
    }
}
close(IN);

# copy configuration file to /data/usr/local/dropbear/etc/config if none
if ( !( -f $cfg_file ) ) {
    if ( !( -d $cfg_dir ) ) {
        system("$mkdir_cmd -p $cfg_dir");
    }
    system("$cp_cmd $app_path/etc/$cfg_file $cfg_dir/$cfg_file >/dev/null 2>/dev/null");
}