#!/usr/bin/perl # # Main author Pascal Rigaux (pixel@mandrakesoft.com) # Put together by Guillaume Cottenceau (gc@mandrakesoft.com) # # Copyright 1999,2000,2001 MandrakeSoft # # This software may be freely redistributed under the terms of the GNU # public license. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # # # This code is extracted from DrakX, the Mandrake Linux graphical installer. # http://www.mandrakelinux.com/drakx/ # Open development rulz, find CVS here: # http://www.mandrakelinux.com/cgi-bin/cvsweb.cgi/gi/ # # Detects partition types using signatures # sub cat_ { local *F; open F, $_[0] or $_[1] ? die "cat of file $_[0] failed: $!\n" : return; my @l = ; wantarray ? @l : join '', @l } sub arch() { my $t = `uname -m`; chomp $t; $t; } # from Perl Cookbook / Pleac # http://pleac.sourceforge.net/pleac_perl/numbers.html#AEN121 sub commify { my $text = reverse $_[0]; $text =~ s/(\d\d\d)(?=\d)(?!\d*\.)/$1,/g; return scalar reverse $text; } my @partitions_signatures = ( [ 0x8e, 0, "HM\1\0" ], [ 0x83, 0x438, "\x53\xEF" ], [ 0x183, 0x10034, "ReIsErFs" ], [ 0x183, 0x10034, "ReIsEr2Fs" ], [ 0x283, 0, 'XFSB', 0x200, 'XAGF', 0x400, 'XAGI' ], [ 0x383, 0x8000, 'JFS1' ], [ 0x82, 4086, "SWAP-SPACE" ], [ 0x82, 4086, "SWAPSPACE2" ], [ 0x7, 0x1FE, "\x55\xAA", 0x3, "NTFS" ], [ 0xc, 0x1FE, "\x55\xAA", 0x52, "FAT32" ], arch() !~ /^sparc/ ? ( [ 0x6, 0x1FE, "\x55\xAA", 0x36, "FAT" ], ) : (), ); sub typeFromMagic { my $f = shift; local *F; sysopen F, $f, 0 or return; my $tmp; M: foreach (@partitions_signatures) { my ($name, @l) = @$_; while (@l) { my ($offset, $signature) = splice(@l, 0, 2); sysseek(F, $offset, 0) or next M; sysread(F, $tmp, length $signature); $tmp eq $signature or next M; } return $name; } return -1; } my %type2name = ( 0x1 => 'DOS 12-bit FAT', 0x4 => 'DOS 16-bit FAT (up to 32M)', 0x5 => 'DOS 3.3+ Extended Partition', 0x6 => 'DOS FAT16', 0x7 => 'NTFS (or HPFS)', 0xb => 'Win98 FAT32', 0xc => 'Win98 FAT32, LBA-mapped', 0xe => 'Win95: DOS 16-bit FAT, LBA-mapped', 0xf => 'Win95: Extended partition, LBA-mapped', 0x82 => 'Linux Swap', 0x83 => 'Ext2', 0x183 => 'ReiserFS', 0x283 => 'XFS', 0x383 => 'JFS', 0x85 => 'Linux extended partition', 0x87 => 'NTFS volume set', 0x8e => 'Linux LVM', -1 => 'unknown' ); my $params = join '', @ARGV; $params =~ /-h/ and die "usage: lsparts [-v]\n"; $params =~ /-v/ and $verbose = 1; my (undef, undef, @parts) = cat_('/proc/partitions'); P: foreach (@parts) { my (undef, undef, $blocks, $dev) = split or next; my %skip_conditions = ( "Skipping <$dev> because too little blocks ($blocks)" => ($blocks <= 1), "Skipping <$dev> because doesn't end with a number (e.g. seems to not be a partition)" => ($dev !~ /\d$/), ); $skip_conditions{$_} and ($verbose and print(STDERR $_, "\n")), next P foreach keys %skip_conditions; my $type = typeFromMagic("/dev/$dev"); $type and printf "$dev: %6s Mbytes, type <0x%0x> (%s)\n", commify($blocks >> 10), $type, $type2name{$type}; } #------------------------------------------------- #- $Log$ #- Revision 1.2 2002/01/10 21:28:15 gc #- better looking output of type of partition (%x => %0x) #- #- Revision 1.1 2001/10/24 22:34:01 gc #- - add a GUI to the rescue #- - provide guessmounts with better efficiency and output, go to console, and reboot #- - provide install_bootloader which runs lilo from /mnt if it seems safe #- - add lsparts to rescue, which prints partitions with detected types #- # '>