1 files changed, 143 insertions, 0 deletions
diff --git a/apt-pkg/contrib/hashsum_template.h b/apt-pkg/contrib/hashsum_template.h
new file mode 100644
index 000000000..e5032d02f
--- /dev/null
+++ b/apt-pkg/contrib/hashsum_template.h
@@ -0,0 +1,143 @@
+// -*- mode: cpp; mode: fold -*-
+// Description                                                          /*{{{*/
+// $Id: hashsum_template.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
+/* ######################################################################
+
+   HashSumValueTemplate - Generic Storage for a hash value
+   
+   ##################################################################### */
+                                                                        /*}}}*/
+#ifndef APTPKG_HASHSUM_TEMPLATE_H
+#define APTPKG_HASHSUM_TEMPLATE_H
+
+
+#include <string>
+#include <cstring>
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
+
+#include <apt-pkg/strutl.h>
+
+#ifndef APT_10_CLEANER_HEADERS
+#include <apt-pkg/fileutl.h>
+#include <algorithm>
+#include <stdint.h>
+#endif
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+using std::min;
+#endif
+
+class FileFd;
+
+template<int N>
+class HashSumValue
+{
+   unsigned char Sum[N/8];
+
+   public:
+
+   // Accessors
+   bool operator ==(const HashSumValue &rhs) const
+   {
+      return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
+   }
+   bool operator !=(const HashSumValue &rhs) const
+   {
+      return memcmp(Sum,rhs.Sum,sizeof(Sum)) != 0;
+   }
+
+   std::string Value() const
+   {
+      char Conv[16] =
+      { '0','1','2','3','4','5','6','7','8','9','a','b',
+        'c','d','e','f'
+      };
+      char Result[((N/8)*2)+1];
+      Result[(N/8)*2] = 0;
+
+      // Convert each char into two letters
+      int J = 0;
+      int I = 0;
+      for (; I != (N/8)*2; J++,I += 2)
+      {
+         Result[I] = Conv[Sum[J] >> 4];
+         Result[I + 1] = Conv[Sum[J] & 0xF];
+      }
+      return std::string(Result);
+   }
+
+   inline void Value(unsigned char S[N/8])
+   {
+      for (int I = 0; I != sizeof(Sum); ++I)
+         S[I] = Sum[I];
+   }
+
+   inline operator std::string() const
+   {
+      return Value();
+   }
+
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN bool Set(APT::StringView Str)
+   {
+      return Hex2Num(Str,Sum,sizeof(Sum));
+   }
+#else
+   bool Set(std::string Str)
+   {
+      return Hex2Num(Str,Sum,sizeof(Sum));
+   }
+#endif
+   inline void Set(unsigned char S[N/8])
+   {
+      for (int I = 0; I != sizeof(Sum); ++I)
+         Sum[I] = S[I];
+   }
+
+   explicit HashSumValue(std::string const &Str)
+   {
+         memset(Sum,0,sizeof(Sum));
+         Set(Str);
+   }
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN explicit HashSumValue(APT::StringView const &Str)
+   {
+         memset(Sum,0,sizeof(Sum));
+         Set(Str);
+   }
+   APT_HIDDEN explicit HashSumValue(const char *Str)
+   {
+         memset(Sum,0,sizeof(Sum));
+         Set(Str);
+   }
+#endif
+   HashSumValue()
+   {
+      memset(Sum,0,sizeof(Sum));
+   }
+};
+
+class SummationImplementation
+{
+   public:
+   virtual bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_NONNULL(2) = 0;
+   inline bool Add(const char *inbuf, unsigned long long const inlen) APT_NONNULL(2)
+   { return Add((const unsigned char *)inbuf, inlen); }
+
+   inline bool Add(const unsigned char *Data) APT_NONNULL(2)
+   { return Add(Data, strlen((const char *)Data)); }
+   inline bool Add(const char *Data) APT_NONNULL(2)
+   { return Add((const unsigned char *)Data, strlen(Data)); }
+
+   inline bool Add(const unsigned char *Beg, const unsigned char *End) APT_NONNULL(2,3)
+   { return Add(Beg, End - Beg); }
+   inline bool Add(const char *Beg, const char *End) APT_NONNULL(2,3)
+   { return Add((const unsigned char *)Beg, End - Beg); }
+
+   bool AddFD(int Fd, unsigned long long Size = 0);
+   bool AddFD(FileFd &Fd, unsigned long long Size = 0);
+};
+
+#endif