summaryrefslogtreecommitdiffstats
path: root/perl-install/resize_fat/io.pm
diff options
context:
space:
mode:
Diffstat (limited to 'perl-install/resize_fat/io.pm')
-rw-r--r--perl-install/resize_fat/io.pm71
1 files changed, 0 insertions, 71 deletions
diff --git a/perl-install/resize_fat/io.pm b/perl-install/resize_fat/io.pm
deleted file mode 100644
index 7643a0953..000000000
--- a/perl-install/resize_fat/io.pm
+++ /dev/null
@@ -1,71 +0,0 @@
-package resize_fat::io; # $Id$
-
-use diagnostics;
-use strict;
-
-use resize_fat::fat;
-use c;
-
-1;
-
-
-sub read($$$) {
- my ($fs, $pos, $size) = @_;
- print "reading $size bytes at $pos\n";
- my $buf = "\0" x $size;
- sysseek $fs->{fd}, $pos, 0 or die "seeking to byte #$pos failed on device $fs->{fs_name}";
- sysread $fs->{fd}, $buf, $size or die "reading at byte #$pos failed on device $fs->{fs_name}";
- $buf;
-}
-sub write($$$$) {
- my ($fs, $pos, $size, $buf) = @_;
- sysseek $fs->{fd}, $pos, 0 or die "seeking to byte #$pos failed on device $fs->{fs_name}";
- syswrite $fs->{fd}, $buf or die "writing at byte #$pos failed on device $fs->{fs_name}";
-}
-
-sub read_cluster($$) {
- my ($fs, $cluster) = @_;
- my $buf;
- my $pos = $fs->{cluster_offset} / 512 + $cluster * ($fs->{cluster_size} / 512);
-
- c::lseek_sector(fileno $fs->{fd}, $pos, 0) or die "seeking to sector #$pos failed on device $fs->{fs_name}";
- sysread $fs->{fd}, $buf, $fs->{cluster_size} or die "reading at sector #$pos failed on device $fs->{fs_name}";
- $buf;
-}
-sub write_cluster($$$) {
- my ($fs, $cluster, $buf) = @_;
- my $pos = $fs->{cluster_offset} / 512 + $cluster * ($fs->{cluster_size} / 512);
-
- c::lseek_sector(fileno $fs->{fd}, $pos, 0) or die "seeking to sector #$pos failed on device $fs->{fs_name}";
- syswrite $fs->{fd}, $buf or die "writing at sector #$pos failed on device $fs->{fs_name}";
-}
-
-sub read_file($$) {
- my ($fs, $cluster) = @_;
- my $buf = '';
-
- for (; !resize_fat::fat::is_eof($cluster); $cluster = resize_fat::fat::next ($fs, $cluster)) {
- $cluster == 0 and die "Bad FAT: unterminated chain\n";
- $buf .= read_cluster($fs, $cluster);
- }
- $buf;
-}
-
-sub check_mounted($) {
- my ($f) = @_;
-
- local *F;
- open F, "/proc/mounts" or die "error opening /proc/mounts\n";
- foreach (<F>) {
- /^$f\s/ and die "device is mounted";
- }
-}
-
-sub open($) {
- my ($fs) = @_;
-
- check_mounted($fs->{device});
-
- sysopen F, $fs->{fs_name}, 2 or sysopen F, $fs->{fs_name}, 0 or die "error opening device $fs->{fs_name} for writing\n";
- $fs->{fd} = *F;
-}