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Allow single level DDT to be located anywhere on file.

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This commit is contained in:
Natalia Portillo
2025-10-07 00:32:00 +01:00
parent e5b9ebd92b
commit 80113a9aae
2 changed files with 19 additions and 5 deletions
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9
src/create.c
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@@ -269,8 +269,13 @@ void *aaruf_create(const char *filepath, const uint32_t media_type, const uint32
: ctx->userDataDdtHeader.entries * sizeof(uint32_t);
// Calculate where data blocks can start (after primary DDT + header)
const uint64_t dataStartPosition = ctx->primaryDdtOffset + sizeof(DdtHeader2) + primaryTableSize;
ctx->nextBlockPosition = dataStartPosition + alignmentMask & ~alignmentMask;
if(ctx->userDataDdtHeader.tableShift > 0)
{
const uint64_t dataStartPosition = ctx->primaryDdtOffset + sizeof(DdtHeader2) + primaryTableSize;
ctx->nextBlockPosition = dataStartPosition + alignmentMask & ~alignmentMask;
}
else
ctx->nextBlockPosition = ctx->primaryDdtOffset; // Single-level DDT can start anywhere
TRACE("Data blocks will start at position %" PRIu64, ctx->nextBlockPosition);