$check_certificate ? () : '--check-certificate=false',
"--server-stat-of=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
"--server-stat-if=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
+ "--daemon=false --no-conf", shellwords($ENV{ARIA2C_OPTIONS} || ''),
"-d $ENV{'TMPDIR'}/aria2c -o $rfn;",
"cat $ENV{'TMPDIR'}/aria2c/$rfn;",
"rm $ENV{'TMPDIR'}/aria2c/$rfn $ENV{'TMPDIR'}/aria2c/${rfn}_spp");