Port CRC32 and MD5 functions to standard FreePascal RTL

Added compat dir for Kylix compatibility

1 files changed, 9 insertions, 10 deletions

diff --git a/UChecksumDruid.pas b/UChecksumDruid.pas
index 18e4243..bbe0b73 100644
--- a/UChecksumDruid.pas
+++ b/UChecksumDruid.pas
@@ -76,7 +76,7 @@ var
 
 implementation
 
-uses ULocale, UCoreUtils, ULibc, UCore, DateUtils, UConfig, StrUtils;
+uses ULocale, UCoreUtils, ULibc, UCore, DateUtils, UConfig, StrUtils, md5, crc;
 
 
 procedure TFChecksumDruid.FormCreate(Sender: TObject);
@@ -483,7 +483,8 @@ var FD: TEngineFileDes;
     Error, Count: integer;
     Buffer: Pointer;
     CRC: LongWord;
-    MD5Hash: THash_MD5;
+    MDContext: TMDContext;
+    MDDigest: TMDDigest;
 begin
   HashString := '';
   Result := False;
@@ -494,9 +495,8 @@ begin
     ErrorLabel.Caption := ErrorLabel.Caption + LANGAnErrorOccuredWhileInitializingMemoryBlock + #10;
     Exit;
   end;
-  CRC := $FFFFFFFF;
-  MD5Hash := nil;
-  if not IsItSFV then MD5Hash := THash_MD5.Create;
+  CRC := 0;
+  if not IsItSFV then MDInit(MDContext, MD_VERSION_5);
 
   FD := Engine.OpenFile(FName, omRead, Error);
   if Error <> 0 then begin
@@ -511,7 +511,7 @@ begin
       Exit;
     end;
     if IsItSFV then CRC := CRC32(CRC, Buffer, Count)
-               else MD5Hash.Calc(Buffer^, Count);
+               else MDUpdate(MDContext, Buffer^, Count);
     Progress.Value := Progress.Value + Count;
     Progress.Text := Format('%d %%', [Trunc(Progress.Fraction * 100)]);
     Application.ProcessMessages;
@@ -520,11 +520,10 @@ begin
   Engine.CloseFile(FD);
   libc_free(Buffer);
 
-  if IsItSFV then HashString := IntToHex(not CRC, 8) else
+  if IsItSFV then HashString := IntToHex(CRC, 8) else
   begin
-    MD5Hash.Done;
-    HashString := MD5Hash.GetKeyStrH;
-    MD5Hash.Free;
+    MDFinal(MDContext, MDDigest);
+    HashString := MDPrint(MDDigest);
   end;
   Result := True;
 end;