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Update primary table entry to use calculated ddtPosition instead of cachedDdtOffset

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Natalia Portillo
2025-09-28 18:43:08 +01:00
parent e39e803c91
commit d4040e10af
1 changed files with 3 additions and 5 deletions
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8
src/ddt/ddt_v2.c
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@@ -1013,14 +1013,12 @@ void set_ddt_multi_level_v2(aaruformatContext *ctx, uint64_t sectorAddress, bool
// Step 4: Update the primary level table entry and flush it back to file
uint64_t newSecondaryTableBlockOffset = endOfFile >> ctx->userDataDdtHeader.blockAlignmentShift;
// Find which entry in the primary table corresponds to the cached secondary table
uint64_t cachedDdtPosition = ctx->cachedDdtOffset >> ctx->userDataDdtHeader.blockAlignmentShift;
// Update the primary table entry to point to the new location of the secondary table
// Use ddtPosition which was calculated from sectorAddress, not cachedDdtOffset
if(ctx->userDataDdtHeader.sizeType == SmallDdtSizeType)
ctx->userDataDdtMini[cachedDdtPosition] = (uint16_t)newSecondaryTableBlockOffset;
ctx->userDataDdtMini[ddtPosition] = (uint16_t)newSecondaryTableBlockOffset;
else
ctx->userDataDdtBig[cachedDdtPosition] = (uint32_t)newSecondaryTableBlockOffset;
ctx->userDataDdtBig[ddtPosition] = (uint32_t)newSecondaryTableBlockOffset;
// Write the updated primary table back to its original position in the file
long savedPos = ftell(ctx->imageStream);