More SHA-1 prep

Author: jgg
Date: 2001-03-06 07:15:29 GMT
More SHA-1 prep

2 files changed, 84 insertions, 0 deletions

diff --git a/apt-pkg/contrib/hashes.cc b/apt-pkg/contrib/hashes.cc
new file mode 100644
index 000000000..af741b672
--- /dev/null
+++ b/apt-pkg/contrib/hashes.cc
@@ -0,0 +1,43 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: hashes.cc,v 1.1 2001/03/06 07:15:29 jgg Exp $
+/* ######################################################################
+
+   Hashes - Simple wrapper around the hash functions
+   
+   This is just used to make building the methods simpler, this is the
+   only interface required..
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#ifdef __GNUG__
+#pragma implementation "apt-pkg/hashes.h"
+#endif
+
+#include <apt-pkg/hashes.h>
+    
+#include <unistd.h>    
+#include <system.h>    
+									/*}}}*/
+
+// Hashes::AddFD - Add the contents of the FD				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool Hashes::AddFD(int Fd,unsigned long Size)
+{
+   unsigned char Buf[64*64];
+   int Res = 0;
+   while (Size != 0)
+   {
+      Res = read(Fd,Buf,MIN(Size,sizeof(Buf)));
+      if (Res < 0 || (unsigned)Res != MIN(Size,sizeof(Buf)))
+	 return false;
+      Size -= Res;
+      MD5.Add(Buf,Res);
+      SHA1.Add(Buf,Res);
+   }
+   return true;
+}
+									/*}}}*/
+
diff --git a/apt-pkg/contrib/hashes.h b/apt-pkg/contrib/hashes.h
new file mode 100644
index 000000000..e00eaeb2d
--- /dev/null
+++ b/apt-pkg/contrib/hashes.h
@@ -0,0 +1,41 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: hashes.h,v 1.1 2001/03/06 07:15:29 jgg Exp $
+/* ######################################################################
+
+   Hashes - Simple wrapper around the hash functions
+   
+   This is just used to make building the methods simpler, this is the
+   only interface required..
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef APTPKG_HASHES_H
+#define APTPKG_HASHES_H
+
+#ifdef __GNUG__
+#pragma interface "apt-pkg/hashesh.h"
+#endif 
+
+#include <apt-pkg/md5.h>
+#include <apt-pkg/sha1.h>
+
+class Hashes
+{
+   public:
+
+   MD5Summation MD5;
+   SHA1Summation SHA1;
+   
+   inline bool Add(const unsigned char *Data,unsigned long Size)
+   {
+      MD5.Add(Data,Size);
+      SHA1.Add(Data,Size);
+   };
+   inline bool Add(const char *Data) {return Add((unsigned char *)Data,strlen(Data));};
+   bool AddFD(int Fd,unsigned long Size);
+   inline bool Add(const unsigned char *Beg,const unsigned char *End) 
+                  {return Add(Beg,End-Beg);};
+};
+
+#endif