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Implement on-the-fly MD5 checksum calculation

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Natalia Portillo
2025-10-03 00:57:14 +01:00
parent 9e128a0ab8
commit 59addd3efc
4 changed files with 23 additions and 1 deletions
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8
src/write.c
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@@ -145,18 +145,24 @@ int32_t aaruf_write_sector(void *context, uint64_t sector_address, bool negative
return AARUF_ERROR_SECTOR_OUT_OF_BOUNDS;
}
// TODO: Check rewinded for disabling checksums
if(!ctx->rewinded)
{
if(sector_address <= ctx->last_written_block)
{
TRACE("Rewinded");
ctx->rewinded = true;
// Disable MD5 calculation
if(ctx->calculating_md5) ctx->calculating_md5 = false;
}
else
ctx->last_written_block = sector_address;
}
// Calculate MD5 on-the-fly if requested and sector is within user sectors (not negative or overflow)
if(ctx->calculating_md5 && !negative && sector_address <= ctx->imageInfo.Sectors)
aaruf_md5_update(&ctx->md5_context, data, length);
// TODO: If optical disc check track
// Close current block first