Security-57031.1.35.tar.gz

[apple/security.git] / libsecurity_filedb / lib / OverUnderflowCheck.h

diff --git a/libsecurity_filedb/lib/OverUnderflowCheck.h b/libsecurity_filedb/lib/OverUnderflowCheck.h
deleted file mode 100644 (file)
index 7224ac7..0000000
--- a/libsecurity_filedb/lib/OverUnderflowCheck.h
+++ /dev/null
@@ -1,85 +0,0 @@
-#ifndef __OVERUNDERFLOWCHECK__
-#define __OVERUNDERFLOWCHECK__
-
-inline uint32 CheckUInt32Add(uint32 a, uint32 b)
-{
-       uint32 c = a + b;
-       if (c < a)      
-       {
-               CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-       }
-       
-       return c;
-}
-
-
-
-inline uint32 CheckUInt32Subtract(uint32 a, uint32 b)
-{
-       if (a < b)
-       {
-               CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-       }
-
-       return a - b;
-}
-
-
-
-inline uint32 CheckUInt32Multiply(uint32 a, uint32 b)
-{
-       uint32 c = a * b;
-       uint64 cc = ((uint64) a) * ((uint64) b);
-       if (c != cc)
-       {
-               CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-       }
-       
-       return c;
-}
-
-
-
-inline uint64 Check64BitAdd(uint64 a, uint64 b)
-{
-       uint64 c = a + b;
-       if (c < a)
-       {
-               CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-       }
-       
-       return c;
-}
-
-
-
-inline uint64 Check64BitSubtract(uint64 a, uint64 b)
-{
-       if (a < b)
-       {
-               CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-       }
-
-       return a - b;
-}
-
-
-       
-inline uint64 Check64BitMultiply(uint64 a, uint64 b)
-{
-       if (a != 0)
-       {
-               uint64 max = (uint64) -1;
-               uint64 limit = max / a;
-               if (b > limit)
-               {
-                       CssmError::throwMe(CSSMERR_DL_DATABASE_CORRUPT);
-               }
-       }
-       
-       return a * b;
-}
-
-
-
-#endif