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Add support for negative sector addresses in read/write functions

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This commit is contained in:
Natalia Portillo
2025-10-02 17:07:17 +01:00
parent 5c7610c1c0
commit a8f39093bb
10 changed files with 114 additions and 85 deletions
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17
src/write.c
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@@ -36,6 +36,7 @@
*
* @param context Pointer to the aaruformat context.
* @param sector_address Logical sector address to write.
* @param negative Indicates if the sector address is negative.
* @param data Pointer to the data buffer to write.
* @param sector_status Status of the sector to write.
* @param length Length of the data buffer.
@@ -96,11 +97,11 @@
* @warning No bounds checking is performed on sector_address. Writing beyond media limits
* may result in undefined behavior (TODO: implement bounds checking).
*/
int32_t aaruf_write_sector(void *context, uint64_t sector_address, const uint8_t *data, uint8_t sector_status,
uint32_t length)
int32_t aaruf_write_sector(void *context, uint64_t sector_address, bool negative, const uint8_t *data,
uint8_t sector_status, uint32_t length)
{
TRACE("Entering aaruf_write_sector(%p, %" PRIu64 ", %p, %u, %u)", context, sector_address, data, sector_status,
length);
TRACE("Entering aaruf_write_sector(%p, %" PRIu64 ", %d, %p, %u, %u)", context, sector_address, negative, data,
sector_status, length);
// Check context is correct AaruFormat context
if(context == NULL)
@@ -169,8 +170,8 @@ int32_t aaruf_write_sector(void *context, uint64_t sector_address, const uint8_t
bool existing = lookup_map(ctx->sectorHashMap, hash, &ddt_entry);
TRACE("Block does %s exist in deduplication map", existing ? "already" : "not yet");
ddt_ok = set_ddt_entry_v2(ctx, sector_address, ctx->currentBlockOffset, ctx->nextBlockPosition, sector_status,
&ddt_entry);
ddt_ok = set_ddt_entry_v2(ctx, sector_address, negative, ctx->currentBlockOffset, ctx->nextBlockPosition,
sector_status, &ddt_entry);
if(!ddt_ok)
{
TRACE("Exiting aaruf_write_sector() = AARUF_ERROR_CANNOT_SET_DDT_ENTRY");
@@ -188,8 +189,8 @@ int32_t aaruf_write_sector(void *context, uint64_t sector_address, const uint8_t
insert_map(ctx->sectorHashMap, hash, ddt_entry);
}
else
ddt_ok = set_ddt_entry_v2(ctx, sector_address, ctx->currentBlockOffset, ctx->nextBlockPosition, sector_status,
&ddt_entry);
ddt_ok = set_ddt_entry_v2(ctx, sector_address, negative, ctx->currentBlockOffset, ctx->nextBlockPosition,
sector_status, &ddt_entry);
if(!ddt_ok)
{