From 7ac56f8ffd5544c6c1f681f79cafbf72d37d0b82 Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Fri, 25 Feb 2011 18:59:29 +0100
Subject: template based hashsum implementation

---
 apt-pkg/contrib/sha2.h | 70 +++++++++++---------------------------------------
 1 file changed, 15 insertions(+), 55 deletions(-)

(limited to 'apt-pkg/contrib/sha2.h')

diff --git a/apt-pkg/contrib/sha2.h b/apt-pkg/contrib/sha2.h
index 5148b05c3..2c3fcae12 100644
--- a/apt-pkg/contrib/sha2.h
+++ b/apt-pkg/contrib/sha2.h
@@ -20,38 +20,21 @@
 #include <stdint.h>
 
 #include "sha2_internal.h"
+#include "hashsum_template.h"
 
 using std::string;
 using std::min;
 
-// SHA512
 class SHA512Summation;
+class SHA256Summation;
 
-class SHA512SumValue
-{
-   friend class SHA512Summation;
-   unsigned char Sum[64];
-   
-   public:
-
-   // Accessors
-   bool operator ==(const SHA512SumValue &rhs) const; 
-   string Value() const;
-   inline void Value(unsigned char S[64])
-         {for (int I = 0; I != sizeof(Sum); I++) S[I] = Sum[I];};
-   inline operator string() const {return Value();};
-   bool Set(string Str);
-   inline void Set(unsigned char S[64]) 
-         {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
-
-   SHA512SumValue(string Str);
-   SHA512SumValue();
-};
+typedef HashSumValue<512> SHA512SumValue;
+typedef HashSumValue<256> SHA256SumValue;
 
-class SHA512Summation
+class SHA256Summation
 {
-   SHA512_CTX ctx;
-   unsigned char Sum[64];
+   SHA256_CTX ctx;
+   unsigned char Sum[32];
    bool Done;
 
    public:
@@ -61,39 +44,15 @@ class SHA512Summation
    bool AddFD(int Fd,unsigned long Size);
    inline bool Add(const unsigned char *Beg,const unsigned char *End) 
                   {return Add(Beg,End-Beg);};
-   SHA512SumValue Result();
-   
-   SHA512Summation();
-};
-
-// SHA256
-class SHA256Summation;
-
-class SHA256SumValue
-{
-   friend class SHA256Summation;
-   unsigned char Sum[32];
+   SHA256SumValue Result();
    
-   public:
-
-   // Accessors
-   bool operator ==(const SHA256SumValue &rhs) const; 
-   string Value() const;
-   inline void Value(unsigned char S[32])
-         {for (int I = 0; I != sizeof(Sum); I++) S[I] = Sum[I];};
-   inline operator string() const {return Value();};
-   bool Set(string Str);
-   inline void Set(unsigned char S[32]) 
-         {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
-
-   SHA256SumValue(string Str);
-   SHA256SumValue();
+   SHA256Summation();
 };
 
-class SHA256Summation
+class SHA512Summation
 {
-   SHA256_CTX ctx;
-   unsigned char Sum[32];
+   SHA512_CTX ctx;
+   unsigned char Sum[64];
    bool Done;
 
    public:
@@ -103,9 +62,10 @@ class SHA256Summation
    bool AddFD(int Fd,unsigned long Size);
    inline bool Add(const unsigned char *Beg,const unsigned char *End) 
                   {return Add(Beg,End-Beg);};
-   SHA256SumValue Result();
+   SHA512SumValue Result();
    
-   SHA256Summation();
+   SHA512Summation();
 };
 
+
 #endif
-- 
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