summaryrefslogtreecommitdiffstats
path: root/perl-install/resize_fat
diff options
context:
space:
mode:
Diffstat (limited to 'perl-install/resize_fat')
-rw-r--r--perl-install/resize_fat/any.pm25
-rw-r--r--perl-install/resize_fat/boot_sector.pm1
-rw-r--r--perl-install/resize_fat/c_rewritten.xs18
-rw-r--r--perl-install/resize_fat/fat.pm7
-rw-r--r--perl-install/resize_fat/info_sector.pm1
5 files changed, 29 insertions, 23 deletions
diff --git a/perl-install/resize_fat/any.pm b/perl-install/resize_fat/any.pm
index 47f15558b..63f154008 100644
--- a/perl-install/resize_fat/any.pm
+++ b/perl-install/resize_fat/any.pm
@@ -38,7 +38,7 @@ sub last_used($) {
#- count in negative so absolute value count back to 2.
foreach (-($fs->{nb_clusters}+1)..-2) { return -$_ if resize_fat::c_rewritten::flag(-$_) }
- return 2;
+ die "any: empty FAT table";
}
#- patch to get the function last_unmoveable that return the last unmoveable cluster of a fs.
sub last_unmoveable($) {
@@ -46,7 +46,7 @@ sub last_unmoveable($) {
#- count in negative so absolute value count back to 2.
foreach (-($fs->{nb_clusters}+1)..-2) { return -$_ if 0x8 & resize_fat::c_rewritten::flag(-$_) }
- return 2;
+ die "any: empty FAT table";
}
#- calculates the minimum size of a partition, in physical sectors
@@ -58,10 +58,18 @@ sub min_size($) {
#- It's done on purpose since we're moving all directories. So at the worse
#- moment, 2 directories are there, but that way nothing wrong can happen :)
my $min_cluster_count = max(2 + $count->{used} + $count->{bad} + $count->{dirs}, min_cluster_count($fs));
- $min_cluster_count = max($min_cluster_count, 2 + last_unmoveable($fs));
+ $min_cluster_count = max($min_cluster_count, last_unmoveable($fs));
+
+ my $size = $min_cluster_count * divide($fs->{cluster_size}, $SECTORSIZE) +
+ divide($fs->{cluster_offset}, $SECTORSIZE) +
+ 64*1024*1024 / $SECTORSIZE; #- help with such more sectors (ie 64Mb).
+
+ #- help zindozs again with 512Mb+ at least else partition is ignored.
+ if ($resize_fat::isFAT32) {
+ $size = max($size, 524*1024*1024 / $SECTORSIZE);
+ }
+ $size;
- $min_cluster_count * divide($fs->{cluster_size}, $SECTORSIZE) +
- divide($fs->{cluster_offset}, $SECTORSIZE);
}
#- calculates the maximum size of a partition, in physical sectors
sub max_size($) {
@@ -76,7 +84,7 @@ sub max_size($) {
sub used_size($) {
my ($fs) = @_;
- my $used_cluster_count = max(2 + last_used($fs), min_cluster_count($fs));
+ my $used_cluster_count = max(last_used($fs), min_cluster_count($fs));
$used_cluster_count * divide($fs->{cluster_size}, $SECTORSIZE) +
divide($fs->{cluster_offset}, $SECTORSIZE);
@@ -103,10 +111,9 @@ sub flag_clusters {
$nb_dirs += $nb if $type == $DIRECTORY;
0;
};
- resize_fat::c_rewritten::allocate_fat_flag($fs->{nb_clusters} + 2);
- #- patch to reset contents of memory allocated by allocate_fat_flag
- foreach (0..$fs->{nb_clusters} + 1) { resize_fat::c_rewritten::set_flag($_, 0) }
+ #- this must call allocate_fat_flag that zeroes the buffer allocated.
+ resize_fat::c_rewritten::allocate_fat_flag($fs->{nb_clusters} + 2);
resize_fat::directory::traverse_all($fs, $f);
$fs->{clusters}{count}{dirs} = $nb_dirs;
diff --git a/perl-install/resize_fat/boot_sector.pm b/perl-install/resize_fat/boot_sector.pm
index 48e2a8d4e..0ca110af8 100644
--- a/perl-install/resize_fat/boot_sector.pm
+++ b/perl-install/resize_fat/boot_sector.pm
@@ -9,6 +9,7 @@ use resize_fat::any;
use resize_fat::directory;
+#- Oops, this will be unresizable on big-endian machine. trapped by signature.
my $format = "a3 a8 S C S C S S C S S S I I I S S I S S a458 S";
my @fields = (
'boot_jump', #- boot strap short or near jump
diff --git a/perl-install/resize_fat/c_rewritten.xs b/perl-install/resize_fat/c_rewritten.xs
index 5aebb1ffb..eb3e314dd 100644
--- a/perl-install/resize_fat/c_rewritten.xs
+++ b/perl-install/resize_fat/c_rewritten.xs
@@ -35,11 +35,11 @@ read_fat(fd, offset, size, magic)
if (lseek(fd, offset, SEEK_SET) != offset ||
read(fd, fat, size) != size) {
free(fat); fat = NULL;
- croak("reading FAT failed");
+ croak("read_fat: reading FAT failed");
}
if (magic != *(unsigned char *) fat) {
free(fat); fat = NULL;
- croak("FAT has invalid signature");
+ croak("read_fat: FAT has invalid signature");
}
}
@@ -72,9 +72,9 @@ scan_fat(nb_clusters_, type_size_)
short *p;
type_size = type_size_; nb_clusters = nb_clusters_;
- bad_cluster_value = type_size ? 0xffffff7 : 0xfff7;
+ bad_cluster_value = type_size == 32 ? 0xffffff7 : 0xfff7;
- if (type_size % 16) fprintf(stderr, "unable to handle type_size"), exit(1);
+ if (type_size % 16) croak("scan_fat: unable to handle FAT%d", type_size);
type_size /= 16;
for (p = fat + 2 * type_size; p < fat + type_size * (nb_clusters + 2); p += type_size) {
@@ -111,7 +111,7 @@ void
allocate_fat_flag(size)
int size
CODE:
- fat_flag_map = malloc(size);
+ fat_flag_map = calloc(size, 1);
int
checkFat(cluster, type, name)
@@ -151,8 +151,8 @@ void
allocate_fat_remap(size)
int size
CODE:
- fat_remap_size = size / 4;
- fat_remap = (unsigned int *) malloc(size);
+ fat_remap_size = size;
+ fat_remap = (unsigned int *) calloc(size, sizeof(unsigned int *));
unsigned int
fat_remap(cluster)
@@ -161,8 +161,8 @@ fat_remap(cluster)
if (cluster >= bad_cluster_value) {
RETVAL = cluster; /* special cases */
} else {
- if (fat_remap == NULL) croak("fat_remap NULL in fat_remap");
- if (cluster >= fat_remap_size) croak("cluster %d >= %d in fat_remap", cluster, fat_remap_size);
+ if (fat_remap == NULL) croak("fat_remap: NULL in fat_remap");
+ if (cluster >= fat_remap_size) croak("fat_remap: cluster %d >= %d in fat_remap", cluster, fat_remap_size);
RETVAL = fat_remap[cluster];
}
OUTPUT:
diff --git a/perl-install/resize_fat/fat.pm b/perl-install/resize_fat/fat.pm
index 33572624a..0d8a32dfa 100644
--- a/perl-install/resize_fat/fat.pm
+++ b/perl-install/resize_fat/fat.pm
@@ -44,11 +44,8 @@ sub allocate_remap {
#-log::ld("resize_fat: [$cluster,", &next($fs, $cluster), "...]->$new_cluster...");
};
- resize_fat::c_rewritten::allocate_fat_remap($fs->{fat_size});
-
- #- patch to reset contents of memory allocated by allocate_fat_remap
- #- divide by 4 because fat_size is in bytes.
- foreach (0..$fs->{fat_size}/4 - 1) { resize_fat::c_rewritten::set_fat_remap($_, 0) }
+ #- this must call allocate_fat_remap that zeroes the buffer allocated.
+ resize_fat::c_rewritten::allocate_fat_remap($fs->{nb_clusters} + 2);
$fs->{last_free_cluster} = 2;
for ($cluster = 2; $cluster < $fs->{nb_clusters} + 2; $cluster++) {
diff --git a/perl-install/resize_fat/info_sector.pm b/perl-install/resize_fat/info_sector.pm
index 3a6f7cfed..dc459ef6c 100644
--- a/perl-install/resize_fat/info_sector.pm
+++ b/perl-install/resize_fat/info_sector.pm
@@ -6,6 +6,7 @@ use strict;
use common qw(:system);
use resize_fat::io;
+#- Oops, this will be unresizable on big-endian machine. trapped by signature.
my $format = "a484 I I I a16";
my @fields = (
'unused',
generated by cgit v1.2.1 (git 2.21.0) at 2024-11-16 13:52:35 +0000