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Added detection of absolute sector VTOC.

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This commit is contained in:
Natalia Portillo
2017-09-17 05:27:59 +01:00
parent 486d87d384
commit 367fdc8472
2 changed files with 29 additions and 17 deletions
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14
DiscImageChef.Partitions/VTOC.cs
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@@ -62,6 +62,7 @@ namespace DiscImageChef.PartPlugins
ulong pdloc = 0;
byte[] pdsector = null;
bool magic_found = false;
bool absolute = false;
foreach(ulong i in new ulong[] {0, 1, 8, 29})
{
@@ -305,6 +306,17 @@ namespace DiscImageChef.PartPlugins
timestamps = vtoc.timestamp;
}
// Check for a partition describing the VTOC whose start is the same as the start we know.
// This means partition starts are absolute, not relative, to the VTOC position
for(int i = 0; i < V_NUMPAR; i++)
{
if(parts[i].p_tag == pTag.V_BACKUP && (ulong)parts[i].p_start == sectorOffset)
{
absolute = true;
break;
}
}
for(int i = 0; i < V_NUMPAR; i++)
{
if(parts[i].p_tag != pTag.V_UNUSED)
@@ -322,7 +334,7 @@ namespace DiscImageChef.PartPlugins
string info = "";
// Apparently old ones are absolute :?
if(!useOld)
if(!useOld && !absolute)
{
part.Start += sectorOffset;
part.Offset += sectorOffset * imagePlugin.GetSectorSize();