text stringlengths 0 234 |
|---|
Status := No_Filesystem; |
return; |
end if; |
FS.Disk_Parameters := |
To_Disk_Parameter (FS.Window (0 .. 91)); |
if FS.Version = FAT32 then |
Status := |
FS.Ensure_Block (Block_Offset (FS.FSInfo_Block_Number)); |
if Status /= OK then |
return; |
end if; |
-- Check the generic FAT block signature |
if FS.Window (510 .. 511) /= (16#55#, 16#AA#) then |
Status := No_Filesystem; |
return; |
end if; |
FS.FSInfo := |
To_FSInfo (FS.Window (16#1E4# .. 16#1EF#)); |
FS.FSInfo_Changed := False; |
end if; |
declare |
FAT_Size_In_Block : constant Unsigned_32 := |
FS.FAT_Table_Size_In_Blocks * |
Unsigned_32 (FS.Number_Of_FATs); |
Root_Dir_Size : Block_Offset; |
begin |
FS.FAT_Addr := Block_Offset (FS.Reserved_Blocks); |
FS.Data_Area := FS.FAT_Addr + Block_Offset (FAT_Size_In_Block); |
if FS.Version = FAT16 then |
-- Add space for the root directory |
FS.Root_Dir_Area := FS.Data_Area; |
Root_Dir_Size := |
(Block_Offset (FS.FAT16_Root_Dir_Num_Entries) * 32 + |
Block_Offset (FS.Block_Size) - 1) / |
Block_Offset (FS.Block_Size); |
-- Align on clusters |
Root_Dir_Size := |
((Root_Dir_Size + FS.Blocks_Per_Cluster - 1) / |
FS.Blocks_Per_Cluster) * |
FS.Blocks_Per_Cluster; |
FS.Data_Area := FS.Data_Area + Root_Dir_Size; |
end if; |
FS.Num_Clusters := |
Cluster_Type |
((FS.Total_Number_Of_Blocks - Unsigned_32 (FS.Data_Area)) / |
Unsigned_32 (FS.Blocks_Per_Cluster)); |
Function Definition: procedure List (Path : String); |
Function Body: ---------- |
-- List -- |
---------- |
procedure List (Path : String) is |
DD : Directory_Descriptor; |
Status : Status_Code; |
First : Boolean := True; |
begin |
Status := Open (DD, Path); |
if Status /= OK then |
Put ("Cannot open directory '" & Path & "': " & Status'Img); |
return; |
end if; |
if Recursive then |
Put_Line (Path & ":"); |
end if; |
loop |
declare |
Ent : constant Directory_Entry := Read (DD); |
begin |
exit when Ent = Invalid_Dir_Entry; |
if not Ent.Hidden or else Show_All then |
if First then |
Put (Ent.Name); |
First := False; |
else |
Put (" " & Ent.Name); |
end if; |
end if; |
Function Definition: procedure Display_File (Path : String); |
Function Body: ------------------ |
-- Display_File -- |
------------------ |
procedure Display_File (Path : String) is |
FD : File_Descriptor; |
Status : Status_Code; |
Data : String (1 .. 512); |
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