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git-svn-id: https://profuse.googlecode.com/svn/branches/v2@99 aa027e90-d47c-11dd-86d7-074df07e0730

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This commit is contained in:
ksherlock
2009-11-24 03:56:19 +00:00
parent 9f0b5f1004
commit 2209b44225
4 changed files with 20 additions and 112 deletions
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DiskCopy42Image.cpp
+13 -8
View File
@@ -1,10 +1,12 @@
#include "DiskCopy42Image.h"
#include "MappedFile.h"
#include "Buffer.h"
#include "Endian.h"
#include <stdio.h>
#include <cstdio>
using namespace ProFUSE;
using namespace BigEndian;
DiskCopy42Image::DiskCopy42Image(MappedFile *f) :
DiskImage(f),
@@ -24,12 +26,14 @@ DiskCopy42Image::~DiskCopy42Image()
if (_changed)
{
MappedFile *f = file();
void *data = file->fileData();
if (f)
{
uint32_t cs = Checksum(f->offset() + (uint8_t *)f->fileData(),
uint32_t cs = Checksum(f->offset() + (uint8_t *)data,
f->blocks() * 512);
f->write32(72, cs, BigEndian);
Write32(data, 72, cs);
f->sync();
}
// TODO -- checksum
@@ -137,6 +141,7 @@ void DiskCopy42Image::Validate(MappedFile *file)
{
size_t bytes = 0;
size_t size = file->fileSize();
const void *data = file->fileData();
bool ok = false;
uint32_t checksum;
@@ -144,26 +149,26 @@ void DiskCopy42Image::Validate(MappedFile *file)
if (size < 84) break;
// name must be < 64
if (file->read8(0) > 63) break;
if (Read8(data, 0) > 63) break;
if (file->read32(82, BigEndian) != 0x100)
if (Read32(data, 82) != 0x100)
break;
// bytes, not blocks.
bytes = file->read32(64, BigEndian);
bytes = Read32(data, 64);
if (bytes % 512) break;
if (size < 84 + bytes) break;
// todo -- checksum.
checksum = file->read32(72, BigEndian);
checksum = Read32(data, 72);
ok = true;
} while (false);
uint32_t cs = Checksum(64 + (uint8_t *)file->fileData(), bytes);
uint32_t cs = Checksum(64 + (uint8_t *)data, bytes);
if (cs != checksum)
{