* implement sha256/sha1/md5 checking with proper backward compatibility

  and fallback

1 files changed, 27 insertions, 0 deletions

diff --git a/apt-pkg/contrib/hashes.h b/apt-pkg/contrib/hashes.h
index b09ea9f6b..86c0eb2ad 100644
--- a/apt-pkg/contrib/hashes.h
+++ b/apt-pkg/contrib/hashes.h
@@ -19,8 +19,35 @@
 #include <apt-pkg/sha256.h>
 
 #include <algorithm>
+#include <vector>
 
 using std::min;
+using std::vector;
+
+// helper class that contains hash function name
+// and hash
+class HashString
+{
+ protected:
+   string Type;
+   string Hash;
+   static const char * _SupportedHashes[10];
+
+ public:
+   HashString(string Type, string Hash);
+   HashString(string StringedHashString);  // init from str as "type:hash"
+   HashString();
+
+   // verify the given filename against the currently loaded hash
+   bool VerifyFile(string filename) const;
+
+   // helper
+   string toStr() const;                    // convert to str as "type:hash"
+   bool empty() const;
+
+   // return the list of hashes we support
+   static const char** SupportedHashes();
+};
 
 class Hashes
 {