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added SDK support, better validation/sniffing

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git-svn-id: https://profuse.googlecode.com/svn/branches/v2@381 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock
2011-03-09 05:02:04 +00:00
parent 5f893f78fc
commit 32bb5d79b9
12 changed files with 491 additions and 111 deletions
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Device/DiskCopy42Image.cpp
+37 -26
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@@ -170,41 +170,38 @@ BlockDevicePointer DiskCopy42Image::Create(const char *name, size_t blocks, cons
return MAKE_SHARED(DiskCopy42Image, file);
}
void DiskCopy42Image::Validate(MappedFile *file)
bool DiskCopy42Image::Validate(MappedFile *file, const std::nothrow_t &)
{
#undef __METHOD__
#define __METHOD__ "DiskCopy42Image::Validate"
size_t bytes = 0;
size_t size = file->length();
const void *data = file->address();
bool ok = false;
uint32_t checksum = 0;
do {
if (size < oUserData) break;
// name must be < 64
if (Read8(data, 0) > 63) break;
if (Read16(data, oPrivate) != 0x100)
break;
// bytes, not blocks.
bytes = Read32(data, oDataSize);
if (bytes % 512) break;
if (size < oUserData + bytes) break;
// todo -- checksum.
checksum = Read32(data, oDataChecksum);
ok = true;
} while (false);
if (size < oUserData)
return false;
if (!ok)
throw Exception(__METHOD__ ": Invalid file format.");
// name must be < 64
if (Read8(data, 0) > 63)
return false;
if (Read16(data, oPrivate) != 0x100)
return false;
// bytes, not blocks.
bytes = Read32(data, oDataSize);
if (bytes % 512)
return false;
if (size < oUserData + bytes)
return false;
// todo -- checksum.
checksum = Read32(data, oDataChecksum);
uint32_t cs = Checksum(oUserData + (uint8_t *)data, bytes);
@@ -212,7 +209,21 @@ void DiskCopy42Image::Validate(MappedFile *file)
{
fprintf(stderr, __METHOD__ ": Warning: checksum invalid.\n");
}
return true;
}
bool DiskCopy42Image::Validate(MappedFile *file)
{
#undef __METHOD__
#define __METHOD__ "DiskCopy42Image::Validate"
if (!Validate(file, std::nothrow))
throw Exception(__METHOD__ ": Invalid file format.");
return true;
}
void DiskCopy42Image::write(unsigned block, const void *bp)