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authorThierry Vignaud <tvignaud@mandriva.org>2002-07-23 11:08:35 +0000
committerThierry Vignaud <tvignaud@mandriva.org>2002-07-23 11:08:35 +0000
commit61b0cd36577df2a9f86cb2c08d14737f0bbcb557 (patch)
tree08dfd2ab02af6b7c7410158a531a95c2db7b3350 /perl-install/partition_table_dos.pm
parent6ed6b5341362f87e3c70420f206a33f71c72a3de (diff)
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g Move 2: partition table: hierarchy
Diffstat (limited to 'perl-install/partition_table_dos.pm')
-rw-r--r--perl-install/partition_table_dos.pm99
1 files changed, 0 insertions, 99 deletions
diff --git a/perl-install/partition_table_dos.pm b/perl-install/partition_table_dos.pm
deleted file mode 100644
index ced50826f..000000000
--- a/perl-install/partition_table_dos.pm
+++ /dev/null
@@ -1,99 +0,0 @@
-package partition_table_dos; # $Id$
-
-use diagnostics;
-use strict;
-use vars qw(@ISA);
-
-@ISA = qw(partition_table_raw);
-
-use common;
-use partition_table_raw;
-use partition_table;
-use c;
-
-my @fields = qw(active start_head start_sec start_cyl type end_head end_sec end_cyl start size);
-my $format = "C8 V2";
-my $magic = "\x55\xAA";
-my $nb_primary = 4;
-
-my $offset = $common::SECTORSIZE - length($magic) - $nb_primary * common::psizeof($format);
-
-sub hasExtended { 1 }
-
-sub compute_CHS($$) {
- my ($hd, $e) = @_;
- my @l = qw(cyl head sec);
- @$e{map { "start_$_" } @l} = $e->{start} || $e->{type} ? CHS2rawCHS($hd, sector2CHS($hd, $e->{start})) : (0,0,0);
- @$e{map { "end_$_" } @l} = $e->{start} || $e->{type} ? CHS2rawCHS($hd, sector2CHS($hd, $e->{start} + $e->{size} - 1)) : (0,0,0);
- 1;
-}
-
-sub CHS2rawCHS {
- my ($hd, $c, $h, $s) = @_;
- if ($c > 1023) {
- #- no way to have a #cylinder >= 1024
- $c = 1023;
- $h = $hd->{geom}{heads} - 1;
- $s = $hd->{geom}{sectors};
- }
- ($c & 0xff, $h, $s | ($c >> 2 & 0xc0));
-}
-
-# returns (cylinder, head, sector)
-sub sector2CHS {
- my ($hd, $start) = @_;
- my ($s, $h);
- ($start, $s) = divide($start, $hd->{geom}{sectors});
- ($start, $h) = divide($start, $hd->{geom}{heads});
- ($start, $h, $s + 1);
-}
-
-sub read {
- my ($hd, $sector) = @_;
- my $tmp;
-
- local *F; partition_table_raw::openit($hd, *F) or die "failed to open device";
- c::lseek_sector(fileno(F), $sector, $offset) or die "reading of partition in sector $sector failed";
-
- my @pt = map {
- sysread F, $tmp, psizeof($format) or die "error while reading partition table in sector $sector";
- my %h; @h{@fields} = unpack $format, $tmp;
- \%h;
- } (1..$nb_primary);
-
- #- check magic number
- sysread F, $tmp, length $magic or die "error reading magic number on disk $hd->{device}";
- $tmp eq $magic or die "bad magic number on disk $hd->{device}";
-
- [ @pt ];
-}
-
-# write the partition table (and extended ones)
-# for each entry, it uses fields: start, size, type, active
-sub write($$$;$) {
- my ($hd, $sector, $pt) = @_;
-
- #- handle testing for writing partition table on file only!
- local *F;
- if ($::testing) {
- my $file = "/tmp/partition_table_$hd->{device}";
- open F, ">$file" or die "error opening test file $file";
- } else {
- partition_table_raw::openit($hd, *F, 2) or die "error opening device $hd->{device} for writing";
- c::lseek_sector(fileno(F), $sector, $offset) or return 0;
- }
-
- @$pt == $nb_primary or die "partition table does not have $nb_primary entries";
- foreach (@$pt) {
- compute_CHS($hd, $_);
- local $_->{start} = $_->{local_start} || 0;
- $_->{active} ||= 0; $_->{type} ||= 0; $_->{size} ||= 0; #- for no warning
- syswrite F, pack($format, @$_{@fields}), psizeof($format) or return 0;
- }
- syswrite F, $magic, length $magic or return 0;
- 1;
-}
-
-sub clear_raw { { raw => [ ({}) x $nb_primary ] } }
-
-1;