Sha256: fcd385cec384a63247bb70d8580699bbe478f6010db3557d1b35c69d8f80b4e8
Contents?: true
Size: 986 Bytes
Versions: 52
Compression:
Stored size: 986 Bytes
Contents
module Fat32Probe
def self.probe(dobj)
unless dobj.kind_of?(MiqDisk)
$log&.debug "Fat32Probe << FALSE because Disk Object class is not MiqDisk, but is '#{dobj.class}'"
return false
end
# Assume FAT32 - read boot sector.
dobj.seek(0)
bs = dobj.read(512)
# Check byte 66 for 0x29 (extended signature).
if bs.nil? || bs[66] != 0x29
$log&.debug("Fat32Probe << FALSE because there is no extended signature")
return false
end
# Check file system label for 'FAT32 '
# NOTE: This works for MS tools but maybe not for others.
if bs.length < 90
$log&.debug("Fat32Probe << FALSE because there is no filesystem label")
return false
end
fslabel = bs[82, 8].unpack('a8')[0].strip
fat32 = fslabel == 'FAT32'
if $log
$log.debug("Fat32Probe << TRUE") if fat32
$log.debug("Fat32Probe << FALSE because FS label is NOT FAT32, but is '#{fslabel}'") unless fat32
end
fat32
end
end
Version data entries
52 entries across 52 versions & 1 rubygems