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Fix EDC retrieval by using memcpy for correct data access

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Natalia Portillo
2025-10-08 19:21:14 +01:00
parent 102ef6a1b7
commit 0d53c988ad
1 changed files with 6 additions and 4 deletions
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10
src/write.c
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@@ -984,8 +984,9 @@ int32_t aaruf_write_sector_long(void *context, uint64_t sector_address, bool neg
if(form2) if(form2)
{ {
const uint32_t computed_edc = aaruf_edc_cd_compute(context, 0, data, 0x91C, 0x10); const uint32_t computed_edc = aaruf_edc_cd_compute(context, 0, data, 0x91C, 0x10);
const uint32_t edc = *(data + 0x92C); uint32_t edc = 0;
const bool correct_edc = computed_edc == edc; memcpy(&edc, data + 0x92C, sizeof(edc));
const bool correct_edc = computed_edc == edc;
if(correct_edc) if(correct_edc)
ctx->sectorSuffixDdtMini[corrected_sector_address] = SectorStatusMode2Form2Ok << 12; ctx->sectorSuffixDdtMini[corrected_sector_address] = SectorStatusMode2Form2Ok << 12;
@@ -1027,8 +1028,9 @@ int32_t aaruf_write_sector_long(void *context, uint64_t sector_address, bool neg
const bool correct_ecc = aaruf_ecc_cd_is_suffix_correct_mode2(context, data); const bool correct_ecc = aaruf_ecc_cd_is_suffix_correct_mode2(context, data);
const uint32_t computed_edc = aaruf_edc_cd_compute(context, 0, data, 0x808, 0x10); const uint32_t computed_edc = aaruf_edc_cd_compute(context, 0, data, 0x808, 0x10);
const uint32_t edc = *(data + 0x818); uint32_t edc = 0;
const bool correct_edc = computed_edc == edc; memcpy(&edc, data + 0x818, sizeof(edc));
const bool correct_edc = computed_edc == edc;
if(correct_ecc && correct_edc) if(correct_ecc && correct_edc)
ctx->sectorSuffixDdtMini[corrected_sector_address] = SectorStatusMode2Form1Ok << 12; ctx->sectorSuffixDdtMini[corrected_sector_address] = SectorStatusMode2Form1Ok << 12;