aaru-dps/libaaruformat
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Reformat

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This commit is contained in:
Natalia Portillo
2019-03-31 20:52:06 +01:00
parent b255303607
commit 701bc2cedc
16 changed files with 1276 additions and 1349 deletions
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126
src/read.c
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@@ -37,16 +37,14 @@
int32_t read_media_tag(void *context, uint8_t *data, int32_t tag, uint32_t *length)
{
dicformatContext *ctx;
dataLinkedList *item;
dataLinkedList * item;
if(context == NULL)
return DICF_ERROR_NOT_DICFORMAT;
if(context == NULL) return DICF_ERROR_NOT_DICFORMAT;
ctx = context;
// Not a libdicformat context
if(ctx->magic != DIC_MAGIC)
return DICF_ERROR_NOT_DICFORMAT;
if(ctx->magic != DIC_MAGIC) return DICF_ERROR_NOT_DICFORMAT;
item = ctx->mediaTagsHead;
@@ -74,25 +72,22 @@ int32_t read_media_tag(void *context, uint8_t *data, int32_t tag, uint32_t *leng
int32_t read_sector(void *context, uint64_t sectorAddress, uint8_t *data, uint32_t *length)
{
dicformatContext *ctx;
uint64_t ddtEntry;
uint32_t offsetMask;
uint64_t offset;
uint64_t blockOffset;
BlockHeader blockHeader;
uint8_t *block;
size_t readBytes;
uint64_t ddtEntry;
uint32_t offsetMask;
uint64_t offset;
uint64_t blockOffset;
BlockHeader blockHeader;
uint8_t * block;
size_t readBytes;
if(context == NULL)
return DICF_ERROR_NOT_DICFORMAT;
if(context == NULL) return DICF_ERROR_NOT_DICFORMAT;
ctx = context;
// Not a libdicformat context
if(ctx->magic != DIC_MAGIC)
return DICF_ERROR_NOT_DICFORMAT;
if(ctx->magic != DIC_MAGIC) return DICF_ERROR_NOT_DICFORMAT;
if(sectorAddress > ctx->imageInfo.Sectors - 1)
return DICF_ERROR_SECTOR_OUT_OF_BOUNDS;
if(sectorAddress > ctx->imageInfo.Sectors - 1) return DICF_ERROR_SECTOR_OUT_OF_BOUNDS;
ddtEntry = ctx->userDataDdt[sectorAddress];
offsetMask = (uint32_t)((1 << ctx->shift) - 1);
@@ -114,8 +109,7 @@ int32_t read_sector(void *context, uint64_t sectorAddress, uint8_t *data, uint32
fseek(ctx->imageStream, blockOffset, SEEK_SET);
readBytes = fread(&blockHeader, sizeof(BlockHeader), 1, ctx->imageStream);
if(readBytes != sizeof(BlockHeader))
return DICF_ERROR_CANNOT_READ_HEADER;
if(readBytes != sizeof(BlockHeader)) return DICF_ERROR_CANNOT_READ_HEADER;
if(data == NULL || *length < blockHeader.sectorSize)
{
@@ -126,9 +120,9 @@ int32_t read_sector(void *context, uint64_t sectorAddress, uint8_t *data, uint32
// Decompress block
switch(blockHeader.compression)
{
case None:block = (uint8_t *)malloc(blockHeader.length);
if(block == NULL)
return DICF_ERROR_NOT_ENOUGH_MEMORY;
case None:
block = (uint8_t *)malloc(blockHeader.length);
if(block == NULL) return DICF_ERROR_NOT_ENOUGH_MEMORY;
readBytes = fread(block, blockHeader.length, 1, ctx->imageStream);
@@ -139,7 +133,7 @@ int32_t read_sector(void *context, uint64_t sectorAddress, uint8_t *data, uint32
}
break;
default:return DICF_ERROR_UNSUPPORTED_COMPRESSION;
default: return DICF_ERROR_UNSUPPORTED_COMPRESSION;
}
// Check if cache needs to be emptied
@@ -157,26 +151,21 @@ int32_t read_sector(void *context, uint64_t sectorAddress, uint8_t *data, uint32
int32_t read_track_sector(void *context, uint8_t *data, uint64_t sectorAddress, uint32_t *length, uint8_t track)
{
dicformatContext *ctx;
int i;
int i;
if(context == NULL)
return DICF_ERROR_NOT_DICFORMAT;
if(context == NULL) return DICF_ERROR_NOT_DICFORMAT;
ctx = context;
// Not a libdicformat context
if(ctx->magic != DIC_MAGIC)
return DICF_ERROR_NOT_DICFORMAT;
if(ctx->magic != DIC_MAGIC) return DICF_ERROR_NOT_DICFORMAT;
if(ctx->imageInfo.XmlMediaType != OpticalDisc)
return DICF_ERROR_INCORRECT_MEDIA_TYPE;
if(ctx->imageInfo.XmlMediaType != OpticalDisc) return DICF_ERROR_INCORRECT_MEDIA_TYPE;
for(i = 0; i < ctx->numberOfDataTracks; i++)
{
if(ctx->dataTracks[i].sequence == track)
{
return read_sector(context, ctx->dataTracks[i].start + sectorAddress, data, length);
}
{ return read_sector(context, ctx->dataTracks[i].start + sectorAddress, data, length); }
}
return DICF_ERROR_TRACK_NOT_FOUND;
@@ -185,22 +174,20 @@ int32_t read_track_sector(void *context, uint8_t *data, uint64_t sectorAddress,
int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, uint32_t *length)
{
dicformatContext *ctx;
uint32_t bareLength;
uint32_t tagLength;
uint8_t *bareData;
int32_t res;
TrackEntry trk;
int i;
bool trkFound;
uint32_t bareLength;
uint32_t tagLength;
uint8_t * bareData;
int32_t res;
TrackEntry trk;
int i;
bool trkFound;
if(context == NULL)
return DICF_ERROR_NOT_DICFORMAT;
if(context == NULL) return DICF_ERROR_NOT_DICFORMAT;
ctx = context;
// Not a libdicformat context
if(ctx->magic != DIC_MAGIC)
return DICF_ERROR_NOT_DICFORMAT;
if(ctx->magic != DIC_MAGIC) return DICF_ERROR_NOT_DICFORMAT;
switch(ctx->imageInfo.XmlMediaType)
{
@@ -219,13 +206,11 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
bareData = (uint8_t *)malloc(bareLength);
if(bareData == NULL)
return DICF_ERROR_NOT_ENOUGH_MEMORY;
if(bareData == NULL) return DICF_ERROR_NOT_ENOUGH_MEMORY;
res = read_sector(context, sectorAddress, bareData, &bareLength);
if(res < DICF_STATUS_OK)
return res;
if(res < DICF_STATUS_OK) return res;
trkFound = false;
@@ -239,15 +224,14 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
}
}
if(!trkFound)
return DICF_ERROR_TRACK_NOT_FOUND;
if(!trkFound) return DICF_ERROR_TRACK_NOT_FOUND;
switch(trk.type)
{
case Audio:
case Data:memcpy(bareData, data, bareLength);
return res;
case CdMode1:memcpy(bareData, data + 16, 2048);
case Data: memcpy(bareData, data, bareLength); return res;
case CdMode1:
memcpy(bareData, data + 16, 2048);
if(ctx->sectorPrefix != NULL)
memcpy(data, ctx->sectorPrefix + (sectorAddress * 16), 16);
@@ -266,7 +250,7 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
{
memcpy(data,
ctx->sectorPrefixCorrected +
((ctx->sectorPrefixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 16,
((ctx->sectorPrefixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 16,
16);
}
}
@@ -279,7 +263,6 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
{
if((ctx->sectorSuffixDdt[sectorAddress] & CD_XFIX_MASK) == Correct)
{
ecc_cd_reconstruct(ctx->eccCdContext, data, trk.type);
res = DICF_STATUS_OK;
}
@@ -291,7 +274,7 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
{
memcpy(data + 2064,
ctx->sectorSuffixCorrected +
((ctx->sectorSuffixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 288,
((ctx->sectorSuffixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 288,
288);
}
}
@@ -319,7 +302,7 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
{
memcpy(data,
ctx->sectorPrefixCorrected +
((ctx->sectorPrefixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 16,
((ctx->sectorPrefixDdt[sectorAddress] & CD_DFIX_MASK) - 1) * 16,
16);
}
}
@@ -352,7 +335,7 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
memcpy(data + 16, bareData, 2336);
return res;
default:return DICF_ERROR_INVALID_TRACK_FORMAT;
default: return DICF_ERROR_INVALID_TRACK_FORMAT;
}
case BlockMedia:
switch(ctx->imageInfo.MediaType)
@@ -363,21 +346,17 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
case AppleSonyDS:
case AppleWidget:
case PriamDataTower:
if(ctx->sectorSubchannel == NULL)
return read_sector(context, sectorAddress, data, length);
if(ctx->sectorSubchannel == NULL) return read_sector(context, sectorAddress, data, length);
switch(ctx->imageInfo.MediaType)
{
case AppleFileWare:
case AppleProfile:
case AppleWidget:tagLength = 20;
break;
case AppleWidget: tagLength = 20; break;
case AppleSonySS:
case AppleSonyDS:tagLength = 12;
break;
case PriamDataTower:tagLength = 24;
break;
default:return DICF_ERROR_INCORRECT_MEDIA_TYPE;
case AppleSonyDS: tagLength = 12; break;
case PriamDataTower: tagLength = 24; break;
default: return DICF_ERROR_INCORRECT_MEDIA_TYPE;
}
bareLength = 512;
@@ -390,13 +369,11 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
bareData = malloc(bareLength);
if(bareData == NULL)
return DICF_ERROR_NOT_ENOUGH_MEMORY;
if(bareData == NULL) return DICF_ERROR_NOT_ENOUGH_MEMORY;
res = read_sector(context, sectorAddress, bareData, &bareLength);
if(bareLength != 512)
return res;
if(bareLength != 512) return res;
memcpy(data, ctx->sectorSubchannel + sectorAddress * tagLength, tagLength);
memcpy(data, bareData, 512);
@@ -404,9 +381,8 @@ int32_t read_sector_long(void *context, uint8_t *data, uint64_t sectorAddress, u
free(bareData);
return res;
default:return DICF_ERROR_INCORRECT_MEDIA_TYPE;
default: return DICF_ERROR_INCORRECT_MEDIA_TYPE;
}
default:return DICF_ERROR_INCORRECT_MEDIA_TYPE;
default: return DICF_ERROR_INCORRECT_MEDIA_TYPE;
}
}