Added code for writing files
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Leeland Heins
GitHub
parent
a0910602cf
commit
a6457c2c12
130
ProDOS.pm
130
ProDOS.pm
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@ -1573,6 +1573,8 @@ sub write_file {
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my $numblocks = int($fsize / 512) + (($fsize % 512) ? 1 : 0);
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print "numblocks=$numblocks\n";
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my $blocks_used = $numblocks;
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# Get list of free blocks.
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my @free_blocks = get_free_blocks($pofile, $debug);
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@ -1600,7 +1602,12 @@ sub write_file {
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my $rv = 1;
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my $storage_type = 0x00;
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my $file_storage_type = 0x00;
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my $file_type = 0x00;
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##FIXME
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my $key_pointer = 0x00;
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my $aux_type = 0x00;
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##FIXME
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# Read in the file.
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my $ifh;
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@ -1613,17 +1620,19 @@ sub write_file {
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if ($numblocks == 1) {
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# Seedling file.
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$file_storage_type = 0x10;
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# Get a block off the free blocks list.
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my $blknum = pop @free_blocks;
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$key_pointer = $blknum;
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print "blknum=$blknum\n";
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# Pack the data for the block.
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my $buf = pack "C*", @bytes;
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my $blkbuf = pack "C*", @bytes;
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# Write the single block
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if (!write_blk($pofile, $blknum, \$buf)) {
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if (!write_blk($pofile, $blknum, \$blkbuf)) {
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print "I/O Error writeing block $blknum\n";
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return 0;
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} else {
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@ -1632,6 +1641,7 @@ sub write_file {
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}
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} elsif ($numblocks <= 256) {
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# Sapling file.
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$file_storage_type = 0x20;
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# Write out the index block.
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##FIXME
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@ -1644,6 +1654,7 @@ sub write_file {
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##FIXME
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} else {
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# Tree file.
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$file_storage_type = 0x30;
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# Create the master index block.
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##FIXME
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@ -1661,9 +1672,120 @@ sub write_file {
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##FIXME
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}
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# Write the file descriptive entry out.
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# Read & rewrite the file descriptive entry out.
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my $dirbuf;
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if (read_blk($pofile, $header_pointer, \$dirbuf)) {
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dump_blk($dirbuf) if $debug;
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dump_blk($dirbuf);
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my @bytes = unpack "C*", $dirbuf;
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my $storage_type = $bytes[4] >> 4;
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#printf("storage_type=\$%02x\n", $storage_type);
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if ($storage_type == 0x0f || $storage_type == 0x0e) {
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# Fill in STORAGE_TYPE/NAME_LENGTH
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#printf("file_storage_type=\$%02x\n", $file_storage_type);
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$file_storage_type &= 0xf0;
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#printf("file_storage_type=\$%02x\n", $file_storage_type);
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$file_storage_type |= length($apple_filename);
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$bytes[0x2b + ($i* 0x27)] = $file_storage_type;
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#printf("file_storage_type=\$%02x\n", $file_storage_type);
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# Fill in FILE_NAME
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my $filename_start = 0x2b + ($i * 0x27) + 0x01;
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#print"filename_start=$filename_start\n";
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#print "filename='";
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my $j = 0;
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for (my $i = $filename_start; $i < ($filename_start + 15); $i++) {
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#printf("%c", $bytes[$i]);
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if ($j < length($apple_filename)) {
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$bytes[$i] = ord(substr($apple_filename, $j++, 1));
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} else {
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$bytes[$i] = 0x00;
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}
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}
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#print "'\n";
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#print "filename='";
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#for (my $i = $filename_start; $i < ($filename_start + 15); $i++) {
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# printf("%c", $bytes[$i]);
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#}
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#print "'\n";
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# Fill in FILE_TYPE
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$bytes[0x2b + ($i * 0x27) + 0x10] = $file_type;
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# Fill in LO byte of KEY_POINTER
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$bytes[0x2b + ($i * 0x27) + 0x11] = $key_pointer & 0x00ff;
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# Fill in HI byte of KEY_POINTER
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$bytes[0x2b + ($i * 0x27) + 0x12] = (($key_pointer & 0xff00) >> 8);
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# Fill in LO byte of BLOCKS_USED
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$bytes[0x2b + ($i * 0x27) + 0x13] = $blocks_used & 0x00ff;
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# Fill in HI byte of BLOCKS_USED
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$bytes[0x2b + ($i * 0x27) + 0x14] = (($blocks_used & 0xff00) >> 8);
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# Fill in EOF
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$bytes[0x2b + ($i * 0x27) + 0x15] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x16] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x17] = 0x00;
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##FIXME
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# Fill in CREATION
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$bytes[0x2b + ($i * 0x27) + 0x18] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x19] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x1a] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x1b] = 0x00;
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##FIXME
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# Fill in VERSION
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$bytes[0x2b + ($i * 0x27) + 0x1c] = 0x00;
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# Fill in MIN_VERSION
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$bytes[0x2b + ($i * 0x27) + 0x1d] = 0x00;
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# Fill in ACCESS
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$bytes[0x2b + ($i * 0x27) + 0x1e] = 0xc3;
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# Fill in LO byte of AUX_TYPE
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$bytes[0x2b + ($i * 0x27) + 0x1f] = $aux_type & 0x00ff;
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# Fill in HI byte of AUX_TYPR
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$bytes[0x2b + ($i * 0x27) + 0x20] = (($aux_type & 0xff00) >> 8);
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##FIXME
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# Fill in LAST_MOD
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$bytes[0x2b + ($i * 0x27) + 0x21] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x22] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x23] = 0x00;
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$bytes[0x2b + ($i * 0x27) + 0x24] = 0x00;
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##FIXME
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# Fill in LO byte of HEADER_POINTER
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$bytes[0x2b + ($i * 0x27) + 0x25] = $header_pointer & 0x00ff;
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# Fill in HI byte of HEADER_POINTER
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$bytes[0x2b + ($i * 0x27) + 0x26] = (($header_pointer & 0xff00) >> 8);
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} else {
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printf("Invalid storage type \$%02x\n", $storage_type);
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return 0;
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}
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$dirbuf = pack "C*", @bytes;
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dump_blk($dirbuf) if $debug;
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dump_blk($dirbuf);
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if (!write_blk($pofile, $header_pointer, \$dirbuf)) {
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print "I/O Error\n";
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##FIXME
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return 0;
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}
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} else {
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print "I/O Error\n";
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##FIXME
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return 0;
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}
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# Mark blocks as used.
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$rv = reserve_blocks($pofile, \@used_blocks, $debug);
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} else {
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