Apple-2-Tools
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DOS33-perl
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Work on DOS 3.3 delete & write

This commit is contained in:
Leeland Heins 2019-01-18 07:40:35 -06:00 committed by GitHub
parent bb5928209b
commit 41ecd81ce6
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2 changed files with 97 additions and 11 deletions
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106
DOS33.pm
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@ -175,37 +175,52 @@ sub parse_cat_sec {
my @files = ();
my $empty_file_entry = 0;
my ($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length);
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($first_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 1 };
} else {
$empty_file_entry = 1;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($second_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 2 };
} else {
$empty_file_entry = 2 if $empty_file_entry == 0;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($third_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 3 };
} else {
$empty_file_entry = 3 if $empty_file_entry == 0;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($fourth_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 4 };
} else {
$empty_file_entry = 4 if $empty_file_entry == 0;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($fifth_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 5 };
} else {
$empty_file_entry = 5 if $empty_file_entry == 0;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($sixth_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 6 };
} else {
$empty_file_entry = 6 if $empty_file_entry == 0;
}
($first_tslist_trk, $first_tslist_sec, $file_type, $filename, $file_length) = parse_file_entry($seventh_file_desc_ent);
if (defined $first_tslist_trk && $first_tslist_trk ne '') {
push @files, { 'file_type' => $file_type, 'filename' => $filename, 'file_length' => $file_length, 'trk' => $first_tslist_trk, 'sec' => $first_tslist_sec, 'cat_offset' => 7 };
} else {
$empty_file_entry = 7 if $empty_file_entry == 0;
}
return $trk_num_nxt_cat_sec, $sec_num_nxt_cat_sec, @files;
return $trk_num_nxt_cat_sec, $sec_num_nxt_cat_sec, $empty_file_entry, @files;
}
# Get catalog sector
@ -239,8 +254,9 @@ sub catalog {
my $cat_buf;
my ($next_cat_trk, $next_cat_sec) = ($trk_num_1st_cat_sec, $sec_num_1st_cat_sec);
my @files = ();
my $empty_file_entry;
do {
($cat_buf, $next_cat_trk, $next_cat_sec, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
($cat_buf, $next_cat_trk, $next_cat_sec, $empty_file_entry, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
#if (defined $next_cat_trk && $next_cat_trk ne '') {
if (scalar @files) {
foreach my $file (@files) {
@ -458,7 +474,8 @@ sub find_file {
do {
my $cur_cat_trk = $next_cat_trk;
my $cur_cat_sec = $next_cat_sec;
($cat_buf, $next_cat_trk, $next_cat_sec, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
my $empty_file_entry;
($cat_buf, $next_cat_trk, $next_cat_sec, $empty_file_entry, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
#if (defined $next_cat_trk && $next_cat_trk ne '') {
if (scalar @files) {
foreach my $file (@files) {
@ -733,7 +750,9 @@ sub rename_file {
# Find empty file descriptive entry for writing a file.
#
sub find_empty_file_desc_ent {
my ($dskfile) = @_;
my ($dskfile, $dbg) = @_;
$debug = 1 if (defined $dbg && $dbg);
my ($trk_num_1st_cat_sec, $sec_num_1st_cat_sec, $rel_num_dos, $dsk_vol_num, $max_tslist_secs, $last_trk_secs_alloc, $dir_trk_alloc, $num_trks_dsk, $bit_map_free_secs) = get_vtoc_sec($dskfile);
@ -741,16 +760,15 @@ sub find_empty_file_desc_ent {
my ($next_cat_trk, $next_cat_sec) = ($trk_num_1st_cat_sec, $sec_num_1st_cat_sec);
my $cat_buf;
my @files = ();
my $empty_file_entry;
do {
my $cur_cat_trk = $next_cat_trk;
my $cur_cat_sec = $next_cat_sec;
($cat_buf, $next_cat_trk, $next_cat_sec, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
#if (defined $next_cat_trk && $next_cat_trk ne '') {
if (scalar @files) {
##FIXME
}
($cat_buf, $next_cat_trk, $next_cat_sec, $empty_file_entry, @files) = get_cat_sec($dskfile, $next_cat_trk, $next_cat_sec);
return ($cat_buf, $cur_cat_trk, $cur_cat_sec, $empty_file_entry) if $empty_file_entry > 0;
} while ($next_cat_trk != 0);
} else {
print "I/O ERROR!\n";
return 0;
}
@ -759,6 +777,36 @@ sub find_empty_file_desc_ent {
return 0;
}
#
# Get a list of free sectors
#
sub find_free_sectors {
my ($dskfile, $dbg) = @_;
$debug = 1 if (defined $dbg && $dbg);
my ($trk_num_1st_cat_sec, $sec_num_1st_cat_sec, $rel_num_dos, $dsk_vol_num, $max_tslist_secs, $last_trk_secs_alloc, $dir_trk_alloc, $num_trks_dsk, $num_secs_dsk, $num_bytes_sec, $bit_map_free_secs) = get_vtoc_sec($dskfile);
my @secs = ();
my $tmpl = '';
for (my $t = $min_trk; $t <= $max_trk; $t++) {
$tmpl .= $bit_map_free_sec_tmpl;
}
print "tmpl=$tmpl\n" if $debug;
my @flds = unpack $tmpl, $bit_map_free_secs;
for (my $t = $min_trk; $t <= $max_trk; $t++) {
for (my $s = 0; $s < 16; $s++) {
if ($flds[$t] & 1 << $s) {
print "Free $t $s\n" if $debug;
push @secs, { 'trk' => $t, 'sec' => $s };
}
}
}
return @secs;
}
#
# Copy a file
#
@ -782,7 +830,45 @@ sub write_file {
$debug = 1 if (defined $dbg && $dbg);
##FIXME
# Find empty catalog file descriptive entry.
my ($cat_buf, $cat_trk, $cat_sec, $empty_file_entry) = find_empty_file_desc_ent($dskfile);
print "cat_trk=$cat_trk cat_sec=$cat_sec empty_file_entry=$empty_file_entry\n" if $debug;
if ($empty_file_entry) {
# Find free sectors.
my @free_secs = find_free_sectors($dskfile, $debug);
if (scalar @free_secs) {
print "GOT HERE\n";
# Create file descriptive entry in catalog.
##FIXME
# Read input file a sector worth at a time.
##FIXME
# Initialize sector buffer.
my $buf = pack "C*", 0x00 x 256;
# Create t/s list(s).
my $tslist_buf = pack "C*", 0x00 x 256;
# Fill in first tslist trk/sec in file descriptive entry.
##FIXME
dump_sec($cat_buf) if $debug;
# Write back catalog sector with new file descriptive entry.
if (!wts($dskfile, $cat_trk, $cat_sec, $cat_buf)) {
print "Failed to write catalog sector $cat_trk $cat_sec!\n";
}
# Mark sectors used.
##FIXME
} else {
print "DISK FULL\n";
}
} else {
print "DISK FULL\n";
}
}
1;

2
README
View File

@ -3,7 +3,7 @@ TODO:
catalog.pl -- mostly working
freemap.pl -- mostly working
dos33read.pl -- mostly working for simple text files
dos33write.pl -- started
dos33write.pl -- in progress
dos33umlock.pl -- mostly working
dos33lock.pl -- mostly working
dos33rename.pl -- mostly working