Added drive detection

Plugin autodetects just mounted drives of ‘hd*’ type. I made some changes to autodetect hda|sda|vda drives, and they don’t have to be mounted too:

]# diff check_smart_attributes check_smart_attributes.new
27c27,30
# 0.91 – jacco
> # – added detection of more kinds of drives (hdx,sdx,vdx)
> # – drives don’t need to be mounted for autodetection (using blkid instead of mount)
> #
56c59
my $BLKID = “/usr/sbin/blkid”;
61d63
use lib ‘/usr/lib64/nagios/plugins’;
77c80
” [–drive=/dev/hda [–drive=/dev/sdb […]]] n”;
132c135
sub detect_all_drives {
135c138
open CMD, $BLKID.”|”
139c142
if(m#^(/dev/[hvs]dw)d*:s+#) {
216c219
@DRIVE = detect_all_drives();