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Align end of file to block boundary for improved data integrity

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Natalia Portillo
2025-09-28 18:42:33 +01:00
parent f5304c3173
commit e39e803c91
1 changed files with 4 additions and 2 deletions
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6
src/ddt/ddt_v2.c
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@@ -910,8 +910,10 @@ void set_ddt_multi_level_v2(aaruformatContext *ctx, uint64_t sectorAddress, bool
currentPos = ftell(ctx->imageStream); currentPos = ftell(ctx->imageStream);
fseek(ctx->imageStream, 0, SEEK_END); fseek(ctx->imageStream, 0, SEEK_END);
endOfFile = ftell(ctx->imageStream); endOfFile = ftell(ctx->imageStream);
endOfFile = endOfFile / (1 << ctx->userDataDdtHeader.blockAlignmentShift) *
(1 << ctx->userDataDdtHeader.blockAlignmentShift); // Align to block boundary
uint64_t alignmentMask = (1ULL << ctx->userDataDdtHeader.blockAlignmentShift) - 1;
endOfFile = (endOfFile + alignmentMask) & ~alignmentMask;
fseek(ctx->imageStream, endOfFile, SEEK_SET); fseek(ctx->imageStream, endOfFile, SEEK_SET);
// Prepare DDT header for the cached table // Prepare DDT header for the cached table