merge from the expermental2 branch

32 files changed, 2715 insertions, 1064 deletions

diff --git a/apt-pkg/contrib/cdromutl.cc b/apt-pkg/contrib/cdromutl.cc
index e25caf1a5..187f6bd59 100644
--- a/apt-pkg/contrib/cdromutl.cc
+++ b/apt-pkg/contrib/cdromutl.cc
@@ -10,6 +10,8 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include<config.h>
+
 #include <apt-pkg/cdromutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/md5.h>
@@ -17,8 +19,6 @@
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/strutl.h>
 
-#include <apti18n.h>
-    
 #include <sys/wait.h>
 #include <sys/statvfs.h>
 #include <dirent.h>
@@ -26,8 +26,12 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <stdio.h>
+
+#include <apti18n.h>
 									/*}}}*/
 
+using std::string;
+
 // IsMounted - Returns true if the mount point is mounted		/*{{{*/
 // ---------------------------------------------------------------------
 /* This is a simple algorithm that should always work, we stat the mount point
diff --git a/apt-pkg/contrib/cdromutl.h b/apt-pkg/contrib/cdromutl.h
index 38ed2996e..e94045b5c 100644
--- a/apt-pkg/contrib/cdromutl.h
+++ b/apt-pkg/contrib/cdromutl.h
@@ -12,13 +12,15 @@
 
 #include <string>
 
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
+#endif
 
 // mount cdrom, DeviceName (e.g. /dev/sr0) is optional
-bool MountCdrom(string Path, string DeviceName="");
-bool UnmountCdrom(string Path);
-bool IdentCdrom(string CD,string &Res,unsigned int Version = 2);
-bool IsMounted(string &Path);
-string FindMountPointForDevice(const char *device);
+bool MountCdrom(std::string Path, std::string DeviceName="");
+bool UnmountCdrom(std::string Path);
+bool IdentCdrom(std::string CD,std::string &Res,unsigned int Version = 2);
+bool IsMounted(std::string &Path);
+std::string FindMountPointForDevice(const char *device);
 
 #endif
diff --git a/apt-pkg/contrib/cmndline.cc b/apt-pkg/contrib/cmndline.cc
index f7359c36e..159f330a1 100644
--- a/apt-pkg/contrib/cmndline.cc
+++ b/apt-pkg/contrib/cmndline.cc
@@ -11,11 +11,14 @@
    ##################################################################### */
 									/*}}}*/
 // Include files							/*{{{*/
+#include<config.h>
+
+#include <apt-pkg/configuration.h>
 #include <apt-pkg/cmndline.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
 
-#include <apti18n.h>    
+#include <apti18n.h>
 									/*}}}*/
 using namespace std;
 
diff --git a/apt-pkg/contrib/cmndline.h b/apt-pkg/contrib/cmndline.h
index 7c0c71aa7..9f505fd41 100644
--- a/apt-pkg/contrib/cmndline.h
+++ b/apt-pkg/contrib/cmndline.h
@@ -44,9 +44,11 @@
 #ifndef PKGLIB_CMNDLINE_H
 #define PKGLIB_CMNDLINE_H
 
-
-
+#ifndef APT_8_CLEANER_HEADERS
 #include <apt-pkg/configuration.h>
+#endif
+
+class Configuration;
 
 class CommandLine
 {
diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc
index 2db191ba2..36866a35a 100644
--- a/apt-pkg/contrib/configuration.cc
+++ b/apt-pkg/contrib/configuration.cc
@@ -15,16 +15,19 @@
    ##################################################################### */
 									/*}}}*/
 // Include files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
-#include <apti18n.h>
 
 #include <vector>
 #include <fstream>
 #include <iostream>
 
+#include <apti18n.h>
+
 using namespace std;
 									/*}}}*/
 
@@ -182,8 +185,14 @@ string Configuration::FindFile(const char *Name,const char *Default) const
    }
    
    string val = Itm->Value;
-   while (Itm->Parent != 0 && Itm->Parent->Value.empty() == false)
-   {	 
+   while (Itm->Parent != 0)
+   {
+      if (Itm->Parent->Value.empty() == true)
+      {
+	 Itm = Itm->Parent;
+	 continue;
+      }
+
       // Absolute
       if (val.length() >= 1 && val[0] == '/')
          break;
diff --git a/apt-pkg/contrib/configuration.h b/apt-pkg/contrib/configuration.h
index 2844ec097..4c2e75041 100644
--- a/apt-pkg/contrib/configuration.h
+++ b/apt-pkg/contrib/configuration.h
@@ -34,7 +34,9 @@
 #include <vector>
 #include <iostream>
 
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
+#endif
 
 class Configuration
 {
@@ -42,13 +44,13 @@ class Configuration
    
    struct Item
    {
-      string Value;
-      string Tag;
+      std::string Value;
+      std::string Tag;
       Item *Parent;
       Item *Child;
       Item *Next;
       
-      string FullTag(const Item *Stop = 0) const;
+      std::string FullTag(const Item *Stop = 0) const;
       
       Item() : Parent(0), Child(0), Next(0) {};
    };
@@ -67,35 +69,35 @@ class Configuration
    
    public:
 
-   string Find(const char *Name,const char *Default = 0) const;
-   string Find(string const &Name,const char *Default = 0) const {return Find(Name.c_str(),Default);};
-   string Find(string const &Name, string const &Default) const {return Find(Name.c_str(),Default.c_str());};
-   string FindFile(const char *Name,const char *Default = 0) const;
-   string FindDir(const char *Name,const char *Default = 0) const;
-   std::vector<string> FindVector(const char *Name) const;
-   std::vector<string> FindVector(string const &Name) const { return FindVector(Name.c_str()); };
+   std::string Find(const char *Name,const char *Default = 0) const;
+   std::string Find(std::string const &Name,const char *Default = 0) const {return Find(Name.c_str(),Default);};
+   std::string Find(std::string const &Name, std::string const &Default) const {return Find(Name.c_str(),Default.c_str());};
+   std::string FindFile(const char *Name,const char *Default = 0) const;
+   std::string FindDir(const char *Name,const char *Default = 0) const;
+   std::vector<std::string> FindVector(const char *Name) const;
+   std::vector<std::string> FindVector(std::string const &Name) const { return FindVector(Name.c_str()); };
    int FindI(const char *Name,int const &Default = 0) const;
-   int FindI(string const &Name,int const &Default = 0) const {return FindI(Name.c_str(),Default);};
+   int FindI(std::string const &Name,int const &Default = 0) const {return FindI(Name.c_str(),Default);};
    bool FindB(const char *Name,bool const &Default = false) const;
-   bool FindB(string const &Name,bool const &Default = false) const {return FindB(Name.c_str(),Default);};
-   string FindAny(const char *Name,const char *Default = 0) const;
+   bool FindB(std::string const &Name,bool const &Default = false) const {return FindB(Name.c_str(),Default);};
+   std::string FindAny(const char *Name,const char *Default = 0) const;
 	      
-   inline void Set(const string &Name,const string &Value) {Set(Name.c_str(),Value);};
-   void CndSet(const char *Name,const string &Value);
+   inline void Set(const std::string &Name,const std::string &Value) {Set(Name.c_str(),Value);};
+   void CndSet(const char *Name,const std::string &Value);
    void CndSet(const char *Name,const int Value);
-   void Set(const char *Name,const string &Value);
+   void Set(const char *Name,const std::string &Value);
    void Set(const char *Name,const int &Value);
    
-   inline bool Exists(const string &Name) const {return Exists(Name.c_str());};
+   inline bool Exists(const std::string &Name) const {return Exists(Name.c_str());};
    bool Exists(const char *Name) const;
    bool ExistsAny(const char *Name) const;
 
    // clear a whole tree
-   void Clear(const string &Name);
+   void Clear(const std::string &Name);
 
    // remove a certain value from a list (e.g. the list of "APT::Keep-Fds")
-   void Clear(string const &List, string const &Value);
-   void Clear(string const &List, int const &Value);
+   void Clear(std::string const &List, std::string const &Value);
+   void Clear(std::string const &List, int const &Value);
 
    inline const Item *Tree(const char *Name) const {return Lookup(Name);};
 
@@ -127,11 +129,11 @@ class Configuration
 
 extern Configuration *_config;
 
-bool ReadConfigFile(Configuration &Conf,const string &FName,
+bool ReadConfigFile(Configuration &Conf,const std::string &FName,
 		    bool const &AsSectional = false,
 		    unsigned const &Depth = 0);
 
-bool ReadConfigDir(Configuration &Conf,const string &Dir,
+bool ReadConfigDir(Configuration &Conf,const std::string &Dir,
 		   bool const &AsSectional = false,
 		   unsigned const &Depth = 0);
 
diff --git a/apt-pkg/contrib/crc-16.cc b/apt-pkg/contrib/crc-16.cc
index b300ed67e..4058821f9 100644
--- a/apt-pkg/contrib/crc-16.cc
+++ b/apt-pkg/contrib/crc-16.cc
@@ -15,6 +15,8 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/crc-16.h>
 									/*}}}*/
 
@@ -63,7 +65,7 @@ static unsigned short const crc16_table[256] =
 /* Recompute the FCS with one more character appended. */
 #define CalcFCS(fcs, c) (((fcs) >> 8) ^ crc16_table[((fcs) ^ (c)) & 0xff])
 unsigned short AddCRC16(unsigned short fcs, void const *Buf,
-			unsigned long len) 
+			unsigned long long len)
 {
    unsigned char const *buf = (unsigned char const *)Buf;
    while (len--)
diff --git a/apt-pkg/contrib/crc-16.h b/apt-pkg/contrib/crc-16.h
index f30678bac..702de40b2 100644
--- a/apt-pkg/contrib/crc-16.h
+++ b/apt-pkg/contrib/crc-16.h
@@ -12,6 +12,6 @@
 
 #define INIT_FCS  0xffff
 unsigned short AddCRC16(unsigned short fcs, void const *buf,
-			unsigned long len);
+			unsigned long long len);
 
 #endif
diff --git a/apt-pkg/contrib/error.cc b/apt-pkg/contrib/error.cc
index edb290f34..122e2c809 100644
--- a/apt-pkg/contrib/error.cc
+++ b/apt-pkg/contrib/error.cc
@@ -13,6 +13,8 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/error.h>
 
 #include <iostream>
@@ -24,8 +26,7 @@
 #include <string>
 #include <cstring>
 
-#include "config.h"
-   									/*}}}*/
+									/*}}}*/
 
 // Global Error Object							/*{{{*/
 /* If the implementation supports posix threads then the accessor function
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 85dc6f600..9e3611b26 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -18,14 +18,15 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
+#include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/configuration.h>
 
-#include <apti18n.h>
-
 #include <cstdlib>
 #include <cstring>
 #include <cstdio>
@@ -43,14 +44,45 @@
 #include <set>
 #include <algorithm>
 
-#include <config.h>
+#ifdef HAVE_ZLIB
+	#include <zlib.h>
+#endif
+#ifdef HAVE_BZ2
+	#include <bzlib.h>
+#endif
+
 #ifdef WORDS_BIGENDIAN
 #include <inttypes.h>
 #endif
+
+#include <apti18n.h>
 									/*}}}*/
 
 using namespace std;
 
+class FileFdPrivate {
+	public:
+#ifdef HAVE_ZLIB
+	gzFile gz;
+#else
+	void* gz;
+#endif
+#ifdef HAVE_BZ2
+	BZFILE* bz2;
+#else
+	void* bz2;
+#endif
+	int compressed_fd;
+	pid_t compressor_pid;
+	bool pipe;
+	APT::Configuration::Compressor compressor;
+	unsigned int openmode;
+	unsigned long long seekpos;
+	FileFdPrivate() : gz(NULL), bz2(NULL),
+			  compressed_fd(-1), compressor_pid(-1), pipe(false),
+			  openmode(0), seekpos(0) {};
+};
+
 // RunScripts - Run a set of scripts from a configuration subtree	/*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -132,10 +164,10 @@ bool CopyFile(FileFd &From,FileFd &To)
    
    // Buffered copy between fds
    SPtrArray<unsigned char> Buf = new unsigned char[64000];
-   unsigned long Size = From.Size();
+   unsigned long long Size = From.Size();
    while (Size != 0)
    {
-      unsigned long ToRead = Size;
+      unsigned long long ToRead = Size;
       if (Size > 64000)
 	 ToRead = 64000;
       
@@ -358,6 +390,13 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
       {
 	 if (RealFileExists(File.c_str()) == false)
 	 {
+	    // do not show ignoration warnings for directories
+	    if (
+#ifdef _DIRENT_HAVE_D_TYPE
+		Ent->d_type == DT_DIR ||
+#endif
+		DirectoryExists(File.c_str()) == true)
+	       continue;
 	    if (SilentIgnore.Match(Ent->d_name) == false)
 	       _error->Notice(_("Ignoring '%s' in directory '%s' as it is not a regular file"), Ent->d_name, Dir.c_str());
 	    continue;
@@ -429,6 +468,80 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
       std::sort(List.begin(),List.end());
    return List;
 }
+std::vector<string> GetListOfFilesInDir(string const &Dir, bool SortList)
+{
+   bool const Debug = _config->FindB("Debug::GetListOfFilesInDir", false);
+   if (Debug == true)
+      std::clog << "Accept in " << Dir << " all regular files" << std::endl;
+
+   std::vector<string> List;
+
+   if (DirectoryExists(Dir.c_str()) == false)
+   {
+      _error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str());
+      return List;
+   }
+
+   DIR *D = opendir(Dir.c_str());
+   if (D == 0)
+   {
+      _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
+      return List;
+   }
+
+   for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D)) 
+   {
+      // skip "hidden" files
+      if (Ent->d_name[0] == '.')
+	 continue;
+
+      // Make sure it is a file and not something else
+      string const File = flCombine(Dir,Ent->d_name);
+#ifdef _DIRENT_HAVE_D_TYPE
+      if (Ent->d_type != DT_REG)
+#endif
+      {
+	 if (RealFileExists(File.c_str()) == false)
+	 {
+	    if (Debug == true)
+	       std::clog << "Bad file: " << Ent->d_name << " → it is not a real file" << std::endl;
+	    continue;
+	 }
+      }
+
+      // Skip bad filenames ala run-parts
+      const char *C = Ent->d_name;
+      for (; *C != 0; ++C)
+	 if (isalpha(*C) == 0 && isdigit(*C) == 0
+	     && *C != '_' && *C != '-' && *C != '.')
+	    break;
+
+      // we don't reach the end of the name -> bad character included
+      if (*C != 0)
+      {
+	 if (Debug == true)
+	    std::clog << "Bad file: " << Ent->d_name << " → bad character »" << *C << "« in filename" << std::endl;
+	 continue;
+      }
+
+      // skip filenames which end with a period. These are never valid
+      if (*(C - 1) == '.')
+      {
+	 if (Debug == true)
+	    std::clog << "Bad file: " << Ent->d_name << " → Period as last character" << std::endl;
+	 continue;
+      }
+
+      if (Debug == true)
+	 std::clog << "Accept file: " << Ent->d_name << " in " << Dir << std::endl;
+      List.push_back(File);
+   }
+   closedir(D);
+
+   if (SortList == true)
+      std::sort(List.begin(),List.end());
+   return List;
+}
 									/*}}}*/
 // SafeGetCWD - This is a safer getcwd that returns a dynamic string	/*{{{*/
 // ---------------------------------------------------------------------
@@ -717,83 +830,306 @@ bool ExecWait(pid_t Pid,const char *Name,bool Reap)
 // FileFd::Open - Open a file						/*{{{*/
 // ---------------------------------------------------------------------
 /* The most commonly used open mode combinations are given with Mode */
-bool FileFd::Open(string FileName,OpenMode Mode, unsigned long Perms)
+bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress, unsigned long const Perms)
 {
-   Close();
-   Flags = AutoClose;
-   switch (Mode)
+   if (Mode == ReadOnlyGzip)
+      return Open(FileName, ReadOnly, Gzip, Perms);
+
+   if (Compress == Auto && (Mode & WriteOnly) == WriteOnly)
+      return _error->Error("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str());
+
+   std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
+   std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
+   if (Compress == Auto)
    {
-      case ReadOnly:
-      iFd = open(FileName.c_str(),O_RDONLY);
-      break;
-
-      case ReadOnlyGzip:
-      iFd = open(FileName.c_str(),O_RDONLY);
-      if (iFd > 0) {
-	 gz = gzdopen (iFd, "r");
-	 if (gz == NULL) {
-	     close (iFd);
-	     iFd = -1;
-	 }
-      }
-      break;
-      
-      case WriteAtomic:
+      for (; compressor != compressors.end(); ++compressor)
       {
-	 Flags |= Replace;
-	 char *name = strdup((FileName + ".XXXXXX").c_str());
-	 TemporaryFileName = string(mktemp(name));
-	 iFd = open(TemporaryFileName.c_str(),O_RDWR | O_CREAT | O_EXCL,Perms);
-	 free(name);
+	 std::string file = std::string(FileName).append(compressor->Extension);
+	 if (FileExists(file) == false)
+	    continue;
+	 FileName = file;
 	 break;
       }
-
-      case WriteEmpty:
+   }
+   else if (Compress == Extension)
+   {
+      std::string::size_type const found = FileName.find_last_of('.');
+      std::string ext;
+      if (found != std::string::npos)
       {
-      	 struct stat Buf;
-	 if (lstat(FileName.c_str(),&Buf) == 0 && S_ISLNK(Buf.st_mode))
-	    unlink(FileName.c_str());
-	 iFd = open(FileName.c_str(),O_RDWR | O_CREAT | O_TRUNC,Perms);
-	 break;
+	 ext = FileName.substr(found);
+	 if (ext == ".new" || ext == ".bak")
+	 {
+	    std::string::size_type const found2 = FileName.find_last_of('.', found - 1);
+	    if (found2 != std::string::npos)
+	       ext = FileName.substr(found2, found - found2);
+	    else
+	       ext.clear();
+	 }
       }
-      
-      case WriteExists:
-      iFd = open(FileName.c_str(),O_RDWR);
-      break;
+      for (; compressor != compressors.end(); ++compressor)
+	 if (ext == compressor->Extension)
+	    break;
+      // no matching extension - assume uncompressed (imagine files like 'example.org_Packages')
+      if (compressor == compressors.end())
+	 for (compressor = compressors.begin(); compressor != compressors.end(); ++compressor)
+	    if (compressor->Name == ".")
+	       break;
+   }
+   else
+   {
+      std::string name;
+      switch (Compress)
+      {
+      case None: name = "."; break;
+      case Gzip: name = "gzip"; break;
+      case Bzip2: name = "bzip2"; break;
+      case Lzma: name = "lzma"; break;
+      case Xz: name = "xz"; break;
+      case Auto:
+      case Extension:
+	 // Unreachable
+	 return _error->Error("Opening File %s in None, Auto or Extension should be already handled?!?", FileName.c_str());
+      }
+      for (; compressor != compressors.end(); ++compressor)
+	 if (compressor->Name == name)
+	    break;
+      if (compressor == compressors.end())
+	 return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
+   }
+
+   if (compressor == compressors.end())
+      return _error->Error("Can't find a match for specified compressor mode for file %s", FileName.c_str());
+   return Open(FileName, Mode, *compressor, Perms);
+}
+bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const Perms)
+{
+   Close();
+   d = new FileFdPrivate;
+   d->openmode = Mode;
+   Flags = AutoClose;
 
-      case WriteAny:
-      iFd = open(FileName.c_str(),O_RDWR | O_CREAT,Perms);
-      break;      
+   if ((Mode & WriteOnly) != WriteOnly && (Mode & (Atomic | Create | Empty | Exclusive)) != 0)
+      return _error->Error("ReadOnly mode for %s doesn't accept additional flags!", FileName.c_str());
+   if ((Mode & ReadWrite) == 0)
+      return _error->Error("No openmode provided in FileFd::Open for %s", FileName.c_str());
 
-      case WriteTemp:
+   if ((Mode & Atomic) == Atomic)
+   {
+      Flags |= Replace;
+      char *name = strdup((FileName + ".XXXXXX").c_str());
+      TemporaryFileName = string(mktemp(name));
+      free(name);
+   }
+   else if ((Mode & (Exclusive | Create)) == (Exclusive | Create))
+   {
+      // for atomic, this will be done by rename in Close()
       unlink(FileName.c_str());
-      iFd = open(FileName.c_str(),O_RDWR | O_CREAT | O_EXCL,Perms);
-      break;
-   }  
+   }
+   if ((Mode & Empty) == Empty)
+   {
+      struct stat Buf;
+      if (lstat(FileName.c_str(),&Buf) == 0 && S_ISLNK(Buf.st_mode))
+	 unlink(FileName.c_str());
+   }
+
+   int fileflags = 0;
+   #define if_FLAGGED_SET(FLAG, MODE) if ((Mode & FLAG) == FLAG) fileflags |= MODE
+   if_FLAGGED_SET(ReadWrite, O_RDWR);
+   else if_FLAGGED_SET(ReadOnly, O_RDONLY);
+   else if_FLAGGED_SET(WriteOnly, O_WRONLY);
+
+   if_FLAGGED_SET(Create, O_CREAT);
+   if_FLAGGED_SET(Empty, O_TRUNC);
+   if_FLAGGED_SET(Exclusive, O_EXCL);
+   else if_FLAGGED_SET(Atomic, O_EXCL);
+   #undef if_FLAGGED_SET
+
+   if (TemporaryFileName.empty() == false)
+      iFd = open(TemporaryFileName.c_str(), fileflags, Perms);
+   else
+      iFd = open(FileName.c_str(), fileflags, Perms);
 
-   if (iFd < 0)
-      return _error->Errno("open",_("Could not open file %s"),FileName.c_str());
-   
    this->FileName = FileName;
+   if (iFd == -1 || OpenInternDescriptor(Mode, compressor) == false)
+   {
+      if (iFd != -1)
+      {
+	 close (iFd);
+	 iFd = -1;
+      }
+      return _error->Errno("open",_("Could not open file %s"), FileName.c_str());
+   }
+
    SetCloseExec(iFd,true);
    return true;
 }
+									/*}}}*/
+// FileFd::OpenDescriptor - Open a filedescriptor			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compress, bool AutoClose)
+{
+   std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
+   std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
+   std::string name;
+
+   // compat with the old API
+   if (Mode == ReadOnlyGzip && Compress == None)
+      Compress = Gzip;
 
-bool FileFd::OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose)
+   switch (Compress)
+   {
+   case None: name = "."; break;
+   case Gzip: name = "gzip"; break;
+   case Bzip2: name = "bzip2"; break;
+   case Lzma: name = "lzma"; break;
+   case Xz: name = "xz"; break;
+   case Auto:
+   case Extension:
+      return _error->Error("Opening Fd %d in Auto or Extension compression mode is not supported", Fd);
+   }
+   for (; compressor != compressors.end(); ++compressor)
+      if (compressor->Name == name)
+	 break;
+   if (compressor == compressors.end())
+      return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
+
+   return OpenDescriptor(Fd, Mode, *compressor, AutoClose);
+}
+bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose)
 {
    Close();
+   d = new FileFdPrivate;
+   d->openmode = Mode;
    Flags = (AutoClose) ? FileFd::AutoClose : 0;
    iFd = Fd;
-   if (Mode == ReadOnlyGzip) {
-      gz = gzdopen (iFd, "r");
-      if (gz == NULL) {
-	 if (AutoClose)
-	    close (iFd);
-	 return _error->Errno("gzdopen",_("Could not open file descriptor %d"),
-			      Fd);
+   this->FileName = "";
+   if (OpenInternDescriptor(Mode, compressor) == false)
+   {
+      if (AutoClose)
+	 close (iFd);
+      return _error->Errno("gzdopen",_("Could not open file descriptor %d"), Fd);
+   }
+   return true;
+}
+bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor)
+{
+   d->compressor = compressor;
+   if (compressor.Name == "." || compressor.Binary.empty() == true)
+      return true;
+#ifdef HAVE_ZLIB
+   else if (compressor.Name == "gzip")
+   {
+      if ((Mode & ReadWrite) == ReadWrite)
+	 d->gz = gzdopen(iFd, "r+");
+      else if ((Mode & WriteOnly) == WriteOnly)
+	 d->gz = gzdopen(iFd, "w");
+      else
+	 d->gz = gzdopen(iFd, "r");
+      if (d->gz == NULL)
+	 return false;
+      Flags |= Compressed;
+      return true;
+   }
+#endif
+#ifdef HAVE_BZ2
+   else if (compressor.Name == "bzip2")
+   {
+      if ((Mode & ReadWrite) == ReadWrite)
+	 d->bz2 = BZ2_bzdopen(iFd, "r+");
+      else if ((Mode & WriteOnly) == WriteOnly)
+	 d->bz2 = BZ2_bzdopen(iFd, "w");
+      else
+	 d->bz2 = BZ2_bzdopen(iFd, "r");
+      if (d->bz2 == NULL)
+	 return false;
+      Flags |= Compressed;
+      return true;
+   }
+#endif
+
+
+   if ((Mode & ReadWrite) == ReadWrite)
+      return _error->Error("ReadWrite mode is not supported for file %s", FileName.c_str());
+
+   bool const Comp = (Mode & WriteOnly) == WriteOnly;
+   // Handle 'decompression' of empty files
+   if (Comp == false)
+   {
+      struct stat Buf;
+      fstat(iFd, &Buf);
+      if (Buf.st_size == 0 && S_ISFIFO(Buf.st_mode) == false)
+	 return true;
+
+      // We don't need the file open - instead let the compressor open it
+      // as he properly knows better how to efficiently read from 'his' file
+      if (FileName.empty() == false)
+	 close(iFd);
+   }
+
+   // Create a data pipe
+   int Pipe[2] = {-1,-1};
+   if (pipe(Pipe) != 0)
+      return _error->Errno("pipe",_("Failed to create subprocess IPC"));
+   for (int J = 0; J != 2; J++)
+      SetCloseExec(Pipe[J],true);
+
+   d->compressed_fd = iFd;
+   d->pipe = true;
+
+   if (Comp == true)
+      iFd = Pipe[1];
+   else
+      iFd = Pipe[0];
+
+   // The child..
+   d->compressor_pid = ExecFork();
+   if (d->compressor_pid == 0)
+   {
+      if (Comp == true)
+      {
+	 dup2(d->compressed_fd,STDOUT_FILENO);
+	 dup2(Pipe[0],STDIN_FILENO);
+      }
+      else
+      {
+	 if (FileName.empty() == true)
+	    dup2(d->compressed_fd,STDIN_FILENO);
+	 dup2(Pipe[1],STDOUT_FILENO);
+      }
+
+      SetCloseExec(STDOUT_FILENO,false);
+      SetCloseExec(STDIN_FILENO,false);
+
+      std::vector<char const*> Args;
+      Args.push_back(compressor.Binary.c_str());
+      std::vector<std::string> const * const addArgs =
+		(Comp == true) ? &(compressor.CompressArgs) : &(compressor.UncompressArgs);
+      for (std::vector<std::string>::const_iterator a = addArgs->begin();
+	   a != addArgs->end(); ++a)
+	 Args.push_back(a->c_str());
+      if (Comp == false && FileName.empty() == false)
+      {
+	 Args.push_back("--stdout");
+	 if (TemporaryFileName.empty() == false)
+	    Args.push_back(TemporaryFileName.c_str());
+	 else
+	    Args.push_back(FileName.c_str());
       }
+      Args.push_back(NULL);
+
+      execvp(Args[0],(char **)&Args[0]);
+      cerr << _("Failed to exec compressor ") << Args[0] << endl;
+      _exit(100);
    }
-   this->FileName = "";
+   if (Comp == true)
+      close(Pipe[0]);
+   else
+      close(Pipe[1]);
+   if (Comp == true || FileName.empty() == true)
+      close(d->compressed_fd);
+
    return true;
 }
 									/*}}}*/
@@ -810,29 +1146,56 @@ FileFd::~FileFd()
 // ---------------------------------------------------------------------
 /* We are carefull to handle interruption by a signal while reading 
    gracefully. */
-bool FileFd::Read(void *To,unsigned long Size,unsigned long *Actual)
+bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
 {
    int Res;
    errno = 0;
    if (Actual != 0)
       *Actual = 0;
-   
+   *((char *)To) = '\0';
    do
    {
-      if (gz != NULL)
-         Res = gzread(gz,To,Size);
+#ifdef HAVE_ZLIB
+      if (d->gz != NULL)
+	 Res = gzread(d->gz,To,Size);
+      else
+#endif
+#ifdef HAVE_BZ2
+      if (d->bz2 != NULL)
+	 Res = BZ2_bzread(d->bz2,To,Size);
       else
+#endif
          Res = read(iFd,To,Size);
-      if (Res < 0 && errno == EINTR)
-	 continue;
+
       if (Res < 0)
       {
+	 if (errno == EINTR)
+	    continue;
 	 Flags |= Fail;
+#ifdef HAVE_ZLIB
+	 if (d->gz != NULL)
+	 {
+	    int err;
+	    char const * const errmsg = gzerror(d->gz, &err);
+	    if (err != Z_ERRNO)
+	       return _error->Error("gzread: %s (%d: %s)", _("Read error"), err, errmsg);
+	 }
+#endif
+#ifdef HAVE_BZ2
+	 if (d->bz2 != NULL)
+	 {
+	    int err;
+	    char const * const errmsg = BZ2_bzerror(d->bz2, &err);
+	    if (err != BZ_IO_ERROR)
+	       return _error->Error("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg);
+	 }
+#endif
 	 return _error->Errno("read",_("Read error"));
       }
       
       To = (char *)To + Res;
       Size -= Res;
+      d->seekpos += Res;
       if (Actual != 0)
 	 *Actual += Res;
    }
@@ -849,32 +1212,87 @@ bool FileFd::Read(void *To,unsigned long Size,unsigned long *Actual)
    }
    
    Flags |= Fail;
-   return _error->Error(_("read, still have %lu to read but none left"),Size);
+   return _error->Error(_("read, still have %llu to read but none left"), Size);
+}
+									/*}}}*/
+// FileFd::ReadLine - Read a complete line from the file		/*{{{*/
+// ---------------------------------------------------------------------
+/* Beware: This method can be quiet slow for big buffers on UNcompressed
+   files because of the naive implementation! */
+char* FileFd::ReadLine(char *To, unsigned long long const Size)
+{
+   *To = '\0';
+#ifdef HAVE_ZLIB
+   if (d->gz != NULL)
+      return gzgets(d->gz, To, Size);
+#endif
+
+   unsigned long long read = 0;
+   while ((Size - 1) != read)
+   {
+      unsigned long long done = 0;
+      if (Read(To + read, 1, &done) == false)
+	 return NULL;
+      if (done == 0)
+	 break;
+      if (To[read++] == '\n')
+	 break;
+   }
+   if (read == 0)
+      return NULL;
+   To[read] = '\0';
+   return To;
 }
 									/*}}}*/
 // FileFd::Write - Write to the file					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool FileFd::Write(const void *From,unsigned long Size)
+bool FileFd::Write(const void *From,unsigned long long Size)
 {
    int Res;
    errno = 0;
    do
    {
-      if (gz != NULL)
-         Res = gzwrite(gz,From,Size);
+#ifdef HAVE_ZLIB
+      if (d->gz != NULL)
+         Res = gzwrite(d->gz,From,Size);
       else
+#endif
+#ifdef HAVE_BZ2
+      if (d->bz2 != NULL)
+         Res = BZ2_bzwrite(d->bz2,(void*)From,Size);
+      else
+#endif
          Res = write(iFd,From,Size);
       if (Res < 0 && errno == EINTR)
 	 continue;
       if (Res < 0)
       {
 	 Flags |= Fail;
+#ifdef HAVE_ZLIB
+	 if (d->gz != NULL)
+	 {
+	    int err;
+	    char const * const errmsg = gzerror(d->gz, &err);
+	    if (err != Z_ERRNO)
+	       return _error->Error("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+	 }
+#endif
+#ifdef HAVE_BZ2
+	 if (d->bz2 != NULL)
+	 {
+	    int err;
+	    char const * const errmsg = BZ2_bzerror(d->bz2, &err);
+	    if (err != BZ_IO_ERROR)
+	       return _error->Error("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+	 }
+#endif
 	 return _error->Errno("write",_("Write error"));
       }
       
       From = (char *)From + Res;
       Size -= Res;
+      d->seekpos += Res;
    }
    while (Res > 0 && Size > 0);
    
@@ -882,61 +1300,152 @@ bool FileFd::Write(const void *From,unsigned long Size)
       return true;
    
    Flags |= Fail;
-   return _error->Error(_("write, still have %lu to write but couldn't"),Size);
+   return _error->Error(_("write, still have %llu to write but couldn't"), Size);
+}
+bool FileFd::Write(int Fd, const void *From, unsigned long long Size)
+{
+   int Res;
+   errno = 0;
+   do
+   {
+      Res = write(Fd,From,Size);
+      if (Res < 0 && errno == EINTR)
+	 continue;
+      if (Res < 0)
+	 return _error->Errno("write",_("Write error"));
+
+      From = (char *)From + Res;
+      Size -= Res;
+   }
+   while (Res > 0 && Size > 0);
+
+   if (Size == 0)
+      return true;
+
+   return _error->Error(_("write, still have %llu to write but couldn't"), Size);
 }
 									/*}}}*/
 // FileFd::Seek - Seek in the file					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool FileFd::Seek(unsigned long To)
+bool FileFd::Seek(unsigned long long To)
 {
+   if (d->pipe == true
+#ifdef HAVE_BZ2
+	|| d->bz2 != NULL
+#endif
+	)
+   {
+      // Our poor man seeking in pipes is costly, so try to avoid it
+      unsigned long long seekpos = Tell();
+      if (seekpos == To)
+	 return true;
+      else if (seekpos < To)
+	 return Skip(To - seekpos);
+
+      if ((d->openmode & ReadOnly) != ReadOnly)
+	 return _error->Error("Reopen is only implemented for read-only files!");
+#ifdef HAVE_BZ2
+      if (d->bz2 != NULL)
+	 BZ2_bzclose(d->bz2);
+#endif
+      close(iFd);
+      iFd = 0;
+      if (TemporaryFileName.empty() == false)
+	 iFd = open(TemporaryFileName.c_str(), O_RDONLY);
+      else if (FileName.empty() == false)
+	 iFd = open(FileName.c_str(), O_RDONLY);
+      else
+      {
+	 if (d->compressed_fd > 0)
+	    if (lseek(d->compressed_fd, 0, SEEK_SET) != 0)
+	       iFd = d->compressed_fd;
+	 if (iFd <= 0)
+	    return _error->Error("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
+      }
+
+      if (OpenInternDescriptor(d->openmode, d->compressor) == false)
+	 return _error->Error("Seek on file %s because it couldn't be reopened", FileName.c_str());
+
+      if (To != 0)
+	 return Skip(To);
+
+      d->seekpos = To;
+      return true;
+   }
    int res;
-   if (gz)
-      res = gzseek(gz,To,SEEK_SET);
+#ifdef HAVE_ZLIB
+   if (d->gz)
+      res = gzseek(d->gz,To,SEEK_SET);
    else
+#endif
       res = lseek(iFd,To,SEEK_SET);
    if (res != (signed)To)
    {
       Flags |= Fail;
-      return _error->Error("Unable to seek to %lu",To);
+      return _error->Error("Unable to seek to %llu", To);
    }
-   
+
+   d->seekpos = To;
    return true;
 }
 									/*}}}*/
 // FileFd::Skip - Seek in the file					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool FileFd::Skip(unsigned long Over)
+bool FileFd::Skip(unsigned long long Over)
 {
+   if (d->pipe == true
+#ifdef HAVE_BZ2
+	|| d->bz2 != NULL
+#endif
+	)
+   {
+      d->seekpos += Over;
+      char buffer[1024];
+      while (Over != 0)
+      {
+	 unsigned long long toread = std::min((unsigned long long) sizeof(buffer), Over);
+	 if (Read(buffer, toread) == false)
+	    return _error->Error("Unable to seek ahead %llu",Over);
+	 Over -= toread;
+      }
+      return true;
+   }
+
    int res;
-   if (gz)
-      res = gzseek(gz,Over,SEEK_CUR);
+#ifdef HAVE_ZLIB
+   if (d->gz != NULL)
+      res = gzseek(d->gz,Over,SEEK_CUR);
    else
+#endif
       res = lseek(iFd,Over,SEEK_CUR);
    if (res < 0)
    {
       Flags |= Fail;
-      return _error->Error("Unable to seek ahead %lu",Over);
+      return _error->Error("Unable to seek ahead %llu",Over);
    }
-   
+   d->seekpos = res;
+
    return true;
 }
 									/*}}}*/
 // FileFd::Truncate - Truncate the file 				/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool FileFd::Truncate(unsigned long To)
+bool FileFd::Truncate(unsigned long long To)
 {
-   if (gz)
+#if defined HAVE_ZLIB || defined HAVE_BZ2
+   if (d->gz != NULL || d->bz2 != NULL)
    {
       Flags |= Fail;
-      return _error->Error("Truncating gzipped files is not implemented (%s)", FileName.c_str());
+      return _error->Error("Truncating compressed files is not implemented (%s)", FileName.c_str());
    }
+#endif
    if (ftruncate(iFd,To) != 0)
    {
       Flags |= Fail;
-      return _error->Error("Unable to truncate to %lu",To);
+      return _error->Error("Unable to truncate to %llu",To);
    }
    
    return true;
@@ -945,46 +1454,89 @@ bool FileFd::Truncate(unsigned long To)
 // FileFd::Tell - Current seek position					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-unsigned long FileFd::Tell()
+unsigned long long FileFd::Tell()
 {
+   // In theory, we could just return seekpos here always instead of
+   // seeking around, but not all users of FileFd use always Seek() and co
+   // so d->seekpos isn't always true and we can just use it as a hint if
+   // we have nothing else, but not always as an authority…
+   if (d->pipe == true
+#ifdef HAVE_BZ2
+	|| d->bz2 != NULL
+#endif
+	)
+      return d->seekpos;
+
    off_t Res;
-   if (gz)
-     Res = gztell(gz);
+#ifdef HAVE_ZLIB
+   if (d->gz != NULL)
+     Res = gztell(d->gz);
    else
+#endif
      Res = lseek(iFd,0,SEEK_CUR);
    if (Res == (off_t)-1)
       _error->Errno("lseek","Failed to determine the current file position");
+   d->seekpos = Res;
    return Res;
 }
 									/*}}}*/
 // FileFd::FileSize - Return the size of the file			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-unsigned long FileFd::FileSize()
+unsigned long long FileFd::FileSize()
 {
    struct stat Buf;
-
-   if (fstat(iFd,&Buf) != 0)
+   if (d->pipe == false && fstat(iFd,&Buf) != 0)
       return _error->Errno("fstat","Unable to determine the file size");
+
+   // for compressor pipes st_size is undefined and at 'best' zero
+   if (d->pipe == true || S_ISFIFO(Buf.st_mode))
+   {
+      // we set it here, too, as we get the info here for free
+      // in theory the Open-methods should take care of it already
+      d->pipe = true;
+      if (stat(FileName.c_str(), &Buf) != 0)
+	 return _error->Errno("stat","Unable to determine the file size");
+   }
+
    return Buf.st_size;
 }
 									/*}}}*/
 // FileFd::Size - Return the size of the content in the file		/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-unsigned long FileFd::Size()
+unsigned long long FileFd::Size()
 {
-   unsigned long size = FileSize();
+   unsigned long long size = FileSize();
 
+   // for compressor pipes st_size is undefined and at 'best' zero,
+   // so we 'read' the content and 'seek' back - see there
+   if (d->pipe == true
+#ifdef HAVE_BZ2
+	|| (d->bz2 && size > 0)
+#endif
+	)
+   {
+      unsigned long long const oldSeek = Tell();
+      char ignore[1000];
+      unsigned long long read = 0;
+      do {
+	 Read(ignore, sizeof(ignore), &read);
+      } while(read != 0);
+      size = Tell();
+      Seek(oldSeek);
+   }
+#ifdef HAVE_ZLIB
    // only check gzsize if we are actually a gzip file, just checking for
-   // "gz" is not sufficient as uncompressed files will be opened with
+   // "gz" is not sufficient as uncompressed files could be opened with
    // gzopen in "direct" mode as well
-   if (gz && !gzdirect(gz) && size > 0)
+   else if (d->gz && !gzdirect(d->gz) && size > 0)
    {
+       off_t const oldPos = lseek(iFd,0,SEEK_CUR);
        /* unfortunately zlib.h doesn't provide a gzsize(), so we have to do
 	* this ourselves; the original (uncompressed) file size is the last 32
 	* bits of the file */
-       off_t orig_pos = lseek(iFd, 0, SEEK_CUR);
+       // FIXME: Size for gz-files is limited by 32bit… no largefile support
        if (lseek(iFd, -4, SEEK_END) < 0)
 	   return _error->Errno("lseek","Unable to seek to end of gzipped file");
        size = 0L;
@@ -998,28 +1550,68 @@ unsigned long FileFd::Size()
        size = tmp_size;
 #endif
 
-       if (lseek(iFd, orig_pos, SEEK_SET) < 0)
+       if (lseek(iFd, oldPos, SEEK_SET) < 0)
 	   return _error->Errno("lseek","Unable to seek in gzipped file");
+
        return size;
    }
+#endif
 
    return size;
 }
 									/*}}}*/
+// FileFd::ModificationTime - Return the time of last touch		/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+time_t FileFd::ModificationTime()
+{
+   struct stat Buf;
+   if (d->pipe == false && fstat(iFd,&Buf) != 0)
+   {
+      _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
+      return 0;
+   }
+
+   // for compressor pipes st_size is undefined and at 'best' zero
+   if (d->pipe == true || S_ISFIFO(Buf.st_mode))
+   {
+      // we set it here, too, as we get the info here for free
+      // in theory the Open-methods should take care of it already
+      d->pipe = true;
+      if (stat(FileName.c_str(), &Buf) != 0)
+      {
+	 _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
+	 return 0;
+      }
+   }
+
+   return Buf.st_mtime;
+}
+									/*}}}*/
 // FileFd::Close - Close the file if the close flag is set		/*{{{*/
 // ---------------------------------------------------------------------
 /* */
 bool FileFd::Close()
 {
+   if (iFd == -1)
+      return true;
+
    bool Res = true;
    if ((Flags & AutoClose) == AutoClose)
    {
-      if (gz != NULL) {
-	 int const e = gzclose(gz);
-	 // gzdopen() on empty files always fails with "buffer error" here, ignore that
+#ifdef HAVE_ZLIB
+      if (d != NULL && d->gz != NULL) {
+	 int const e = gzclose(d->gz);
+	 // gzdclose() on empty files always fails with "buffer error" here, ignore that
 	 if (e != 0 && e != Z_BUF_ERROR)
 	    Res &= _error->Errno("close",_("Problem closing the gzip file %s"), FileName.c_str());
       } else
+#endif
+#ifdef HAVE_BZ2
+      if (d != NULL && d->bz2 != NULL)
+	 BZ2_bzclose(d->bz2);
+      else
+#endif
 	 if (iFd > 0 && close(iFd) != 0)
 	    Res &= _error->Errno("close",_("Problem closing the file %s"), FileName.c_str());
    }
@@ -1029,16 +1621,23 @@ bool FileFd::Close()
 	 Res &= _error->Errno("rename",_("Problem renaming the file %s to %s"), TemporaryFileName.c_str(), FileName.c_str());
 
       FileName = TemporaryFileName; // for the unlink() below.
+      TemporaryFileName.clear();
    }
 
    iFd = -1;
-   gz = NULL;
 
    if ((Flags & Fail) == Fail && (Flags & DelOnFail) == DelOnFail &&
        FileName.empty() == false)
       if (unlink(FileName.c_str()) != 0)
 	 Res &= _error->WarningE("unlnk",_("Problem unlinking the file %s"), FileName.c_str());
 
+   if (d != NULL)
+   {
+      if (d->compressor_pid > 0)
+	 ExecWait(d->compressor_pid, "FileFdCompressor", true);
+      delete d;
+      d = NULL;
+   }
 
    return Res;
 }
@@ -1055,3 +1654,5 @@ bool FileFd::Sync()
    return true;
 }
 									/*}}}*/
+
+gzFile FileFd::gzFd() { return (gzFile) d->gz; }
diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h
index a1b177f38..426664d3a 100644
--- a/apt-pkg/contrib/fileutl.h
+++ b/apt-pkg/contrib/fileutl.h
@@ -22,82 +22,143 @@
 #define PKGLIB_FILEUTL_H
 
 #include <apt-pkg/macros.h>
+#include <apt-pkg/aptconfiguration.h>
 
 #include <string>
 #include <vector>
 
 #include <zlib.h>
 
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+#endif
+
 /* Define this for python-apt */
 #define APT_HAS_GZIP 1
 
-using std::string;
-
+class FileFdPrivate;
 class FileFd
 {
    protected:
    int iFd;
  
    enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
-                    HitEof = (1<<3), Replace = (1<<4) };
+                    HitEof = (1<<3), Replace = (1<<4), Compressed = (1<<5) };
    unsigned long Flags;
-   string FileName;
-   string TemporaryFileName;
-   gzFile gz;
+   std::string FileName;
+   std::string TemporaryFileName;
 
    public:
-   enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp,ReadOnlyGzip,
-                  WriteAtomic};
+   enum OpenMode {
+	ReadOnly = (1 << 0),
+	WriteOnly = (1 << 1),
+	ReadWrite = ReadOnly | WriteOnly,
+
+	Create = (1 << 2),
+	Exclusive = (1 << 3),
+	Atomic = Exclusive | (1 << 4),
+	Empty = (1 << 5),
+
+	WriteEmpty = ReadWrite | Create | Empty,
+	WriteExists = ReadWrite,
+	WriteAny = ReadWrite | Create,
+	WriteTemp = ReadWrite | Create | Exclusive,
+	ReadOnlyGzip,
+	WriteAtomic = ReadWrite | Create | Atomic
+   };
+   enum CompressMode { Auto = 'A', None = 'N', Extension = 'E', Gzip = 'G', Bzip2 = 'B', Lzma = 'L', Xz = 'X' };
    
-   inline bool Read(void *To,unsigned long Size,bool AllowEof)
+   inline bool Read(void *To,unsigned long long Size,bool AllowEof)
    {
-      unsigned long Jnk;
+      unsigned long long Jnk;
       if (AllowEof)
 	 return Read(To,Size,&Jnk);
       return Read(To,Size);
    }   
-   bool Read(void *To,unsigned long Size,unsigned long *Actual = 0);
-   bool Write(const void *From,unsigned long Size);
-   bool Seek(unsigned long To);
-   bool Skip(unsigned long To);
-   bool Truncate(unsigned long To);
-   unsigned long Tell();
-   unsigned long Size();
-   unsigned long FileSize();
-   bool Open(string FileName,OpenMode Mode,unsigned long Perms = 0666);
-   bool OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose=false);
+   bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0);
+   char* ReadLine(char *To, unsigned long long const Size);
+   bool Write(const void *From,unsigned long long Size);
+   bool static Write(int Fd, const void *From, unsigned long long Size);
+   bool Seek(unsigned long long To);
+   bool Skip(unsigned long long To);
+   bool Truncate(unsigned long long To);
+   unsigned long long Tell();
+   unsigned long long Size();
+   unsigned long long FileSize();
+   time_t ModificationTime();
+
+   /* You want to use 'unsigned long long' if you are talking about a file
+      to be able to support large files (>2 or >4 GB) properly.
+      This shouldn't happen all to often for the indexes, but deb's might be…
+      And as the auto-conversation converts a 'unsigned long *' to a 'bool'
+      instead of 'unsigned long long *' we need to provide this explicitely -
+      otherwise applications magically start to fail… */
+   __deprecated bool Read(void *To,unsigned long long Size,unsigned long *Actual)
+   {
+	unsigned long long R;
+	bool const T = Read(To, Size, &R);
+	*Actual = R;
+	return T;
+   }
+
+   bool Open(std::string FileName,unsigned int const Mode,CompressMode Compress,unsigned long const Perms = 0666);
+   bool Open(std::string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor,unsigned long const Perms = 0666);
+   inline bool Open(std::string const &FileName,unsigned int const Mode, unsigned long const Perms = 0666) {
+      return Open(FileName, Mode, None, Perms);
+   };
+   bool OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compress, bool AutoClose=false);
+   bool OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose=false);
+   inline bool OpenDescriptor(int Fd, unsigned int const Mode, bool AutoClose=false) {
+      return OpenDescriptor(Fd, Mode, None, AutoClose);
+   };
    bool Close();
    bool Sync();
    
    // Simple manipulators
    inline int Fd() {return iFd;};
-   inline void Fd(int fd) {iFd = fd;};
-   inline gzFile gzFd() {return gz;};
+   inline void Fd(int fd) { OpenDescriptor(fd, ReadWrite);};
+   __deprecated gzFile gzFd();
+
    inline bool IsOpen() {return iFd >= 0;};
    inline bool Failed() {return (Flags & Fail) == Fail;};
    inline void EraseOnFailure() {Flags |= DelOnFail;};
    inline void OpFail() {Flags |= Fail;};
    inline bool Eof() {return (Flags & HitEof) == HitEof;};
-   inline string &Name() {return FileName;};
+   inline bool IsCompressed() {return (Flags & Compressed) == Compressed;};
+   inline std::string &Name() {return FileName;};
    
-   FileFd(string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1), 
-            Flags(0), gz(NULL)
+   FileFd(std::string FileName,unsigned int const Mode,unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
+   {
+      Open(FileName,Mode, None, Perms);
+   };
+   FileFd(std::string FileName,unsigned int const Mode, CompressMode Compress, unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
    {
-      Open(FileName,Mode,Perms);
+      Open(FileName,Mode, Compress, Perms);
+   };
+   FileFd() : iFd(-1), Flags(AutoClose), d(NULL) {};
+   FileFd(int const Fd, unsigned int const Mode = ReadWrite, CompressMode Compress = None) : iFd(-1), Flags(0), d(NULL)
+   {
+      OpenDescriptor(Fd, Mode, Compress);
+   };
+   FileFd(int const Fd, bool const AutoClose) : iFd(-1), Flags(0), d(NULL)
+   {
+      OpenDescriptor(Fd, ReadWrite, None, AutoClose);
    };
-   FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose), gz(NULL) {};
-   FileFd(int Fd,bool) : iFd(Fd), Flags(0), gz(NULL) {};
    virtual ~FileFd();
+
+   private:
+   FileFdPrivate* d;
+   bool OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor);
 };
 
 bool RunScripts(const char *Cnf);
 bool CopyFile(FileFd &From,FileFd &To);
-int GetLock(string File,bool Errors = true);
-bool FileExists(string File);
-bool RealFileExists(string File);
-bool DirectoryExists(string const &Path) __attrib_const;
-bool CreateDirectory(string const &Parent, string const &Path);
-time_t GetModificationTime(string const &Path);
+int GetLock(std::string File,bool Errors = true);
+bool FileExists(std::string File);
+bool RealFileExists(std::string File);
+bool DirectoryExists(std::string const &Path) __attrib_const;
+bool CreateDirectory(std::string const &Parent, std::string const &Path);
+time_t GetModificationTime(std::string const &Path);
 
 /** \brief Ensure the existence of the given Path
  *
@@ -105,13 +166,14 @@ time_t GetModificationTime(string const &Path);
  *  /apt/ will be removed before CreateDirectory call.
  *  \param Path which should exist after (successful) call
  */
-bool CreateAPTDirectoryIfNeeded(string const &Parent, string const &Path);
+bool CreateAPTDirectoryIfNeeded(std::string const &Parent, std::string const &Path);
 
-std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::string const &Ext,
 					bool const &SortList, bool const &AllowNoExt=false);
-std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> const &Ext,
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::vector<std::string> const &Ext,
 					bool const &SortList);
-string SafeGetCWD();
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, bool SortList);
+std::string SafeGetCWD();
 void SetCloseExec(int Fd,bool Close);
 void SetNonBlock(int Fd,bool Block);
 bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0);
@@ -119,10 +181,10 @@ pid_t ExecFork();
 bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
 
 // File string manipulators
-string flNotDir(string File);
-string flNotFile(string File);
-string flNoLink(string File);
-string flExtension(string File);
-string flCombine(string Dir,string File);
+std::string flNotDir(std::string File);
+std::string flNotFile(std::string File);
+std::string flNoLink(std::string File);
+std::string flExtension(std::string File);
+std::string flCombine(std::string Dir,std::string File);
 
 #endif
diff --git a/apt-pkg/contrib/hashes.cc b/apt-pkg/contrib/hashes.cc
index 985d89d90..e1a431823 100644
--- a/apt-pkg/contrib/hashes.cc
+++ b/apt-pkg/contrib/hashes.cc
@@ -11,39 +11,41 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/hashes.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/macros.h>
 
-#include <unistd.h>    
+#include <unistd.h>
 #include <string>
 #include <iostream>
 									/*}}}*/
 
 const char* HashString::_SupportedHashes[] = 
 {
-   "SHA256", "SHA1", "MD5Sum", NULL
+   "SHA512", "SHA256", "SHA1", "MD5Sum", NULL
 };
 
 HashString::HashString()
 {
 }
 
-HashString::HashString(string Type, string Hash) : Type(Type), Hash(Hash)
+HashString::HashString(std::string Type, std::string Hash) : Type(Type), Hash(Hash)
 {
 }
 
-HashString::HashString(string StringedHash)				/*{{{*/
+HashString::HashString(std::string StringedHash)			/*{{{*/
 {
    // legacy: md5sum without "MD5Sum:" prefix
-   if (StringedHash.find(":") == string::npos && StringedHash.size() == 32)
+   if (StringedHash.find(":") == std::string::npos && StringedHash.size() == 32)
    {
       Type = "MD5Sum";
       Hash = StringedHash;
       return;
    }
-   string::size_type pos = StringedHash.find(":");
+   std::string::size_type pos = StringedHash.find(":");
    Type = StringedHash.substr(0,pos);
    Hash = StringedHash.substr(pos+1, StringedHash.size() - pos);
 
@@ -51,29 +53,34 @@ HashString::HashString(string StringedHash)				/*{{{*/
       std::clog << "HashString(string): " << Type << " : " << Hash << std::endl;
 }
 									/*}}}*/
-bool HashString::VerifyFile(string filename) const			/*{{{*/
+bool HashString::VerifyFile(std::string filename) const			/*{{{*/
 {
-   FileFd fd;
-   MD5Summation MD5;
-   SHA1Summation SHA1;
-   SHA256Summation SHA256;
-   string fileHash;
+   std::string fileHash;
 
    FileFd Fd(filename, FileFd::ReadOnly);
-   if(Type == "MD5Sum") 
+   if(Type == "MD5Sum")
    {
-      MD5.AddFD(Fd.Fd(), Fd.Size());
-      fileHash = (string)MD5.Result();
-   } 
+      MD5Summation MD5;
+      MD5.AddFD(Fd);
+      fileHash = (std::string)MD5.Result();
+   }
    else if (Type == "SHA1")
    {
-      SHA1.AddFD(Fd.Fd(), Fd.Size());
-      fileHash = (string)SHA1.Result();
-   } 
-   else if (Type == "SHA256") 
+      SHA1Summation SHA1;
+      SHA1.AddFD(Fd);
+      fileHash = (std::string)SHA1.Result();
+   }
+   else if (Type == "SHA256")
    {
-      SHA256.AddFD(Fd.Fd(), Fd.Size());
-      fileHash = (string)SHA256.Result();
+      SHA256Summation SHA256;
+      SHA256.AddFD(Fd);
+      fileHash = (std::string)SHA256.Result();
+   }
+   else if (Type == "SHA512")
+   {
+      SHA512Summation SHA512;
+      SHA512.AddFD(Fd);
+      fileHash = (std::string)SHA512.Result();
    }
    Fd.Close();
 
@@ -93,34 +100,70 @@ bool HashString::empty() const
    return (Type.empty() || Hash.empty());
 }
 
-string HashString::toStr() const
+std::string HashString::toStr() const
 {
-   return Type+string(":")+Hash;
+   return Type + std::string(":") + Hash;
 }
 
 // Hashes::AddFD - Add the contents of the FD				/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool Hashes::AddFD(int Fd,unsigned long Size)
+bool Hashes::AddFD(int const Fd,unsigned long long Size, bool const addMD5,
+		   bool const addSHA1, bool const addSHA256, bool const addSHA512)
 {
    unsigned char Buf[64*64];
-   int Res = 0;
+   ssize_t Res = 0;
    int ToEOF = (Size == 0);
    while (Size != 0 || ToEOF)
    {
-      unsigned n = sizeof(Buf);
-      if (!ToEOF) n = min(Size,(unsigned long)n);
+      unsigned long long n = sizeof(Buf);
+      if (!ToEOF) n = std::min(Size, n);
       Res = read(Fd,Buf,n);
-      if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
-         return false;
+      if (Res < 0 || (!ToEOF && Res != (ssize_t) n)) // error, or short read
+	 return false;
       if (ToEOF && Res == 0) // EOF
-         break;
+	 break;
       Size -= Res;
-      MD5.Add(Buf,Res);
-      SHA1.Add(Buf,Res);
-      SHA256.Add(Buf,Res);
+      if (addMD5 == true)
+	 MD5.Add(Buf,Res);
+      if (addSHA1 == true)
+	 SHA1.Add(Buf,Res);
+      if (addSHA256 == true)
+	 SHA256.Add(Buf,Res);
+      if (addSHA512 == true)
+	 SHA512.Add(Buf,Res);
+   }
+   return true;
+}
+bool Hashes::AddFD(FileFd &Fd,unsigned long long Size, bool const addMD5,
+		   bool const addSHA1, bool const addSHA256, bool const addSHA512)
+{
+   unsigned char Buf[64*64];
+   bool const ToEOF = (Size == 0);
+   while (Size != 0 || ToEOF)
+   {
+      unsigned long long n = sizeof(Buf);
+      if (!ToEOF) n = std::min(Size, n);
+      unsigned long long a = 0;
+      if (Fd.Read(Buf, n, &a) == false) // error
+	 return false;
+      if (ToEOF == false)
+      {
+	 if (a != n) // short read
+	    return false;
+      }
+      else if (a == 0) // EOF
+	 break;
+      Size -= a;
+      if (addMD5 == true)
+	 MD5.Add(Buf, a);
+      if (addSHA1 == true)
+	 SHA1.Add(Buf, a);
+      if (addSHA256 == true)
+	 SHA256.Add(Buf, a);
+      if (addSHA512 == true)
+	 SHA512.Add(Buf, a);
    }
    return true;
 }
 									/*}}}*/
-
diff --git a/apt-pkg/contrib/hashes.h b/apt-pkg/contrib/hashes.h
index 264f7fe90..0c0b6c6a7 100644
--- a/apt-pkg/contrib/hashes.h
+++ b/apt-pkg/contrib/hashes.h
@@ -16,37 +16,41 @@
 
 #include <apt-pkg/md5.h>
 #include <apt-pkg/sha1.h>
-#include <apt-pkg/sha256.h>
+#include <apt-pkg/sha2.h>
+#include <apt-pkg/fileutl.h>
 
 #include <algorithm>
 #include <vector>
 #include <cstring>
 
+
+#ifndef APT_8_CLEANER_HEADERS
 using std::min;
 using std::vector;
+#endif
 
 // helper class that contains hash function name
 // and hash
 class HashString
 {
  protected:
-   string Type;
-   string Hash;
+   std::string Type;
+   std::string Hash;
    static const char * _SupportedHashes[10];
 
  public:
-   HashString(string Type, string Hash);
-   HashString(string StringedHashString);  // init from str as "type:hash"
+   HashString(std::string Type, std::string Hash);
+   HashString(std::string StringedHashString);  // init from str as "type:hash"
    HashString();
 
    // get hash type used
-   string HashType() { return Type; };
+   std::string HashType() { return Type; };
 
    // verify the given filename against the currently loaded hash
-   bool VerifyFile(string filename) const;
+   bool VerifyFile(std::string filename) const;
 
    // helper
-   string toStr() const;                    // convert to str as "type:hash"
+   std::string toStr() const;                    // convert to str as "type:hash"
    bool empty() const;
 
    // return the list of hashes we support
@@ -60,13 +64,21 @@ class Hashes
    MD5Summation MD5;
    SHA1Summation SHA1;
    SHA256Summation SHA256;
+   SHA512Summation SHA512;
    
-   inline bool Add(const unsigned char *Data,unsigned long Size)
+   inline bool Add(const unsigned char *Data,unsigned long long Size)
    {
-      return MD5.Add(Data,Size) && SHA1.Add(Data,Size) && SHA256.Add(Data,Size);
+      return MD5.Add(Data,Size) && SHA1.Add(Data,Size) && SHA256.Add(Data,Size) && SHA512.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 AddFD(int const Fd,unsigned long long Size = 0)
+   { return AddFD(Fd, Size, true, true, true, true); };
+   bool AddFD(int const Fd, unsigned long long Size, bool const addMD5,
+	      bool const addSHA1, bool const addSHA256, bool const addSHA512);
+   inline bool AddFD(FileFd &Fd,unsigned long long Size = 0)
+   { return AddFD(Fd, Size, true, true, true, true); };
+   bool AddFD(FileFd &Fd, unsigned long long Size, bool const addMD5,
+	      bool const addSHA1, bool const addSHA256, bool const addSHA512);
    inline bool Add(const unsigned char *Beg,const unsigned char *End) 
                   {return Add(Beg,End-Beg);};
 };
diff --git a/apt-pkg/contrib/hashsum.cc b/apt-pkg/contrib/hashsum.cc
new file mode 100644
index 000000000..289e43aa4
--- /dev/null
+++ b/apt-pkg/contrib/hashsum.cc
@@ -0,0 +1,50 @@
+// Cryptographic API Base
+#include <config.h>
+
+#include <unistd.h>
+#include "hashsum_template.h"
+
+// Summation::AddFD - Add content of file into the checksum		/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool SummationImplementation::AddFD(int const Fd, unsigned long long Size) {
+   unsigned char Buf[64 * 64];
+   ssize_t Res = 0;
+   int ToEOF = (Size == 0);
+   while (Size != 0 || ToEOF)
+   {
+      unsigned long long n = sizeof(Buf);
+      if (!ToEOF) n = std::min(Size, n);
+      Res = read(Fd, Buf, n);
+      if (Res < 0 || (!ToEOF && Res != (ssize_t) n)) // error, or short read
+	 return false;
+      if (ToEOF && Res == 0) // EOF
+	 break;
+      Size -= Res;
+      Add(Buf,Res);
+   }
+   return true;
+}
+bool SummationImplementation::AddFD(FileFd &Fd, unsigned long long Size) {
+   unsigned char Buf[64 * 64];
+   bool ToEOF = (Size == 0);
+   while (Size != 0 || ToEOF)
+   {
+      unsigned long long n = sizeof(Buf);
+      if (!ToEOF) n = std::min(Size, n);
+      unsigned long long a = 0;
+      if (Fd.Read(Buf, n, &a) == false) // error
+	 return false;
+      if (ToEOF == false)
+      {
+	 if (a != n) // short read
+	    return false;
+      }
+      else if (a == 0) // EOF
+	 break;
+      Size -= a;
+      Add(Buf, a);
+   }
+   return true;
+}
+									/*}}}*/
diff --git a/apt-pkg/contrib/hashsum_template.h b/apt-pkg/contrib/hashsum_template.h
new file mode 100644
index 000000000..9bf160b2b
--- /dev/null
+++ b/apt-pkg/contrib/hashsum_template.h
@@ -0,0 +1,118 @@
+// -*- 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 <apt-pkg/fileutl.h>
+
+#include <string>
+#include <cstring>
+#include <algorithm>
+#include <stdint.h>
+
+#include <apt-pkg/strutl.h>
+
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+using std::min;
+#endif
+
+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();
+   };
+
+   bool Set(std::string Str) 
+   {
+      return Hex2Num(Str,Sum,sizeof(Sum));
+   };
+
+   inline void Set(unsigned char S[N/8]) 
+   {
+      for (int I = 0; I != sizeof(Sum); I++) 
+         Sum[I] = S[I];
+   };
+
+   HashSumValue(std::string Str) 
+   {
+         memset(Sum,0,sizeof(Sum));
+         Set(Str);
+   }
+   HashSumValue()
+   {
+      memset(Sum,0,sizeof(Sum));
+   }
+};
+
+class SummationImplementation
+{
+   public:
+   virtual bool Add(const unsigned char *inbuf, unsigned long long inlen) = 0;
+   inline bool Add(const char *inbuf, unsigned long long const inlen)
+   { return Add((unsigned char *)inbuf, inlen); };
+
+   inline bool Add(const unsigned char *Data)
+   { return Add(Data, strlen((const char *)Data)); };
+   inline bool Add(const char *Data)
+   { return Add((const unsigned char *)Data, strlen((const char *)Data)); };
+
+   inline bool Add(const unsigned char *Beg, const unsigned char *End)
+   { return Add(Beg, End - Beg); };
+   inline bool Add(const char *Beg, const char *End)
+   { 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
diff --git a/apt-pkg/contrib/md5.cc b/apt-pkg/contrib/md5.cc
index c0fa8493d..4351aeb22 100644
--- a/apt-pkg/contrib/md5.cc
+++ b/apt-pkg/contrib/md5.cc
@@ -35,6 +35,8 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/md5.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/macros.h>
@@ -43,7 +45,6 @@
 #include <unistd.h>
 #include <netinet/in.h>                          // For htonl
 #include <inttypes.h>
-#include <config.h>
 									/*}}}*/
 
 // byteSwap - Swap bytes in a buffer					/*{{{*/
@@ -165,61 +166,6 @@ static void MD5Transform(uint32_t buf[4], uint32_t const in[16])
    buf[3] += d;
 }
 									/*}}}*/
-// MD5SumValue::MD5SumValue - Constructs the summation from a string	/*{{{*/
-// ---------------------------------------------------------------------
-/* The string form of a MD5 is a 32 character hex number */
-MD5SumValue::MD5SumValue(string Str)
-{
-   memset(Sum,0,sizeof(Sum));
-   Set(Str);
-}
-									/*}}}*/
-// MD5SumValue::MD5SumValue - Default constructor			/*{{{*/
-// ---------------------------------------------------------------------
-/* Sets the value to 0 */
-MD5SumValue::MD5SumValue()
-{
-   memset(Sum,0,sizeof(Sum));
-}
-									/*}}}*/
-// MD5SumValue::Set - Set the sum from a string				/*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the hex string into a set of chars */
-bool MD5SumValue::Set(string Str)
-{
-   return Hex2Num(Str,Sum,sizeof(Sum));
-}
-									/*}}}*/
-// MD5SumValue::Value - Convert the number into a string		/*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the set of chars into a hex string in lower case */
-string MD5SumValue::Value() const
-{
-   char Conv[16] = {'0','1','2','3','4','5','6','7','8','9','a','b',
-                    'c','d','e','f'};
-   char Result[33];
-   Result[32] = 0;
-   
-   // Convert each char into two letters
-   int J = 0;
-   int I = 0;
-   for (; I != 32; J++, I += 2)
-   {
-      Result[I] = Conv[Sum[J] >> 4];
-      Result[I + 1] = Conv[Sum[J] & 0xF];
-   } 
-
-   return string(Result);
-}
-									/*}}}*/
-// MD5SumValue::operator == - Comparitor				/*{{{*/
-// ---------------------------------------------------------------------
-/* Call memcmp on the buffer */
-bool MD5SumValue::operator ==(const MD5SumValue &rhs) const
-{
-   return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
-}
-									/*}}}*/
 // MD5Summation::MD5Summation - Initialize the summer			/*{{{*/
 // ---------------------------------------------------------------------
 /* This assigns the deep magic initial values */
@@ -241,7 +187,7 @@ MD5Summation::MD5Summation()
 // MD5Summation::Add - 'Add' a data set to the hash			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool MD5Summation::Add(const unsigned char *data,unsigned long len)
+bool MD5Summation::Add(const unsigned char *data,unsigned long long len)
 {
    if (Done == true)
       return false;
@@ -286,29 +232,6 @@ bool MD5Summation::Add(const unsigned char *data,unsigned long len)
    return true;   
 }
 									/*}}}*/
-// MD5Summation::AddFD - Add the contents of a FD to the hash		/*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool MD5Summation::AddFD(int Fd,unsigned long Size)
-{
-   unsigned char Buf[64*64];
-   int Res = 0;
-   int ToEOF = (Size == 0);
-   while (Size != 0 || ToEOF)
-   {
-      unsigned n = sizeof(Buf);
-      if (!ToEOF) n = min(Size,(unsigned long)n);
-      Res = read(Fd,Buf,n);
-      if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
-         return false;
-      if (ToEOF && Res == 0) // EOF
-         break;
-      Size -= Res;
-      Add(Buf,Res);
-   }
-   return true;
-}
-									/*}}}*/
 // MD5Summation::Result - Returns the value of the sum			/*{{{*/
 // ---------------------------------------------------------------------
 /* Because this must add in the last bytes of the series it prevents anyone
@@ -353,7 +276,7 @@ MD5SumValue MD5Summation::Result()
    }
    
    MD5SumValue V;
-   memcpy(V.Sum,buf,16);
+   V.Set((unsigned char *)buf);
    return V;
 }
 									/*}}}*/
diff --git a/apt-pkg/contrib/md5.h b/apt-pkg/contrib/md5.h
index 96c8975b4..25631b166 100644
--- a/apt-pkg/contrib/md5.h
+++ b/apt-pkg/contrib/md5.h
@@ -29,48 +29,29 @@
 #include <algorithm>
 #include <stdint.h>
 
+#include "hashsum_template.h"
+
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
 using std::min;
+#endif
 
-class MD5Summation;
-
-class MD5SumValue
-{
-   friend class MD5Summation;
-   unsigned char Sum[4*4];
-   
-   public:
-
-   // Accessors
-   bool operator ==(const MD5SumValue &rhs) const; 
-   string Value() const;
-   inline void Value(unsigned char S[16]) 
-         {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[16]) 
-         {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
-
-   MD5SumValue(string Str);
-   MD5SumValue();
-};
+typedef HashSumValue<128> MD5SumValue;
 
-class MD5Summation
+class MD5Summation : public SummationImplementation
 {
    uint32_t Buf[4];
    unsigned char Bytes[2*4];
    unsigned char In[16*4];
    bool Done;
-   
+
    public:
 
-   bool Add(const unsigned char *Data,unsigned long 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);};
+   bool Add(const unsigned char *inbuf, unsigned long long inlen);
+   using SummationImplementation::Add;
+
    MD5SumValue Result();
-   
+
    MD5Summation();
 };
 
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc
index 19381ae47..160718ea5 100644
--- a/apt-pkg/contrib/mmap.cc
+++ b/apt-pkg/contrib/mmap.cc
@@ -17,10 +17,11 @@
 									/*}}}*/
 // Include Files							/*{{{*/
 #define _BSD_SOURCE
+#include <config.h>
+
 #include <apt-pkg/mmap.h>
 #include <apt-pkg/error.h>
-
-#include <apti18n.h>
+#include <apt-pkg/fileutl.h>
 
 #include <sys/mman.h>
 #include <sys/stat.h>
@@ -28,9 +29,10 @@
 #include <fcntl.h>
 #include <stdlib.h>
 #include <errno.h>
-
 #include <cstring>
-   									/*}}}*/
+
+#include <apti18n.h>
+									/*}}}*/
 
 // MMap::MMap - Constructor						/*{{{*/
 // ---------------------------------------------------------------------
@@ -64,7 +66,7 @@ MMap::~MMap()
 bool MMap::Map(FileFd &Fd)
 {
    iSize = Fd.Size();
-   
+
    // Set the permissions.
    int Prot = PROT_READ;
    int Map = MAP_SHARED;
@@ -75,7 +77,18 @@ bool MMap::Map(FileFd &Fd)
    
    if (iSize == 0)
       return _error->Error(_("Can't mmap an empty file"));
-   
+
+   // We can't mmap compressed fd's directly, so we need to read it completely
+   if (Fd.IsCompressed() == true)
+   {
+      if ((Flags & ReadOnly) != ReadOnly)
+	 return _error->Error("Compressed file %s can only be mapped readonly", Fd.Name().c_str());
+      Base = new unsigned char[iSize];
+      if (Fd.Seek(0L) == false || Fd.Read(Base, iSize) == false)
+	 return _error->Error("Compressed file %s can't be read into mmap", Fd.Name().c_str());
+      return true;
+   }
+
    // Map it.
    Base = mmap(0,iSize,Prot,Map,Fd.Fd(),0);
    if (Base == (void *)-1)
@@ -84,6 +97,13 @@ bool MMap::Map(FileFd &Fd)
       {
 	 // The filesystem doesn't support this particular kind of mmap.
 	 // So we allocate a buffer and read the whole file into it.
+	 if ((Flags & ReadOnly) == ReadOnly)
+	 {
+	    // for readonly, we don't need sync, so make it simple
+	    Base = new unsigned char[iSize];
+	    return Fd.Read(Base, iSize);
+	 }
+	 // FIXME: Writing to compressed fd's ?
 	 int const dupped_fd = dup(Fd.Fd());
 	 if (dupped_fd == -1)
 	    return _error->Errno("mmap", _("Couldn't duplicate file descriptor %i"), Fd.Fd());
@@ -94,7 +114,7 @@ bool MMap::Map(FileFd &Fd)
 	    return false;
       }
       else
-	 return _error->Errno("mmap",_("Couldn't make mmap of %lu bytes"),
+	 return _error->Errno("mmap",_("Couldn't make mmap of %llu bytes"),
 	                      iSize);
      }
 
@@ -165,7 +185,7 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop)
       return true;
    
 #ifdef _POSIX_SYNCHRONIZED_IO
-   unsigned long PSize = sysconf(_SC_PAGESIZE);
+   unsigned long long PSize = sysconf(_SC_PAGESIZE);
    if ((Flags & ReadOnly) != ReadOnly)
    {
       if (SyncToFd != 0)
@@ -176,7 +196,7 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop)
       }
       else
       {
-	 if (msync((char *)Base+(int)(Start/PSize)*PSize,Stop - Start,MS_SYNC) < 0)
+	 if (msync((char *)Base+(unsigned long long)(Start/PSize)*PSize,Stop - Start,MS_SYNC) < 0)
 	    return _error->Errno("msync", _("Unable to synchronize mmap"));
       }
    }
@@ -196,7 +216,7 @@ DynamicMMap::DynamicMMap(FileFd &F,unsigned long Flags,unsigned long const &Work
    if (_error->PendingError() == true)
       return;
    
-   unsigned long EndOfFile = Fd->Size();
+   unsigned long long EndOfFile = Fd->Size();
    if (EndOfFile > WorkSpace)
       WorkSpace = EndOfFile;
    else if(WorkSpace > 0)
@@ -284,7 +304,7 @@ DynamicMMap::~DynamicMMap()
       return;
    }
    
-   unsigned long EndOfFile = iSize;
+   unsigned long long EndOfFile = iSize;
    iSize = WorkSpace;
    Close(false);
    if(ftruncate(Fd->Fd(),EndOfFile) < 0)
@@ -294,9 +314,9 @@ DynamicMMap::~DynamicMMap()
 // DynamicMMap::RawAllocate - Allocate a raw chunk of unaligned space	/*{{{*/
 // ---------------------------------------------------------------------
 /* This allocates a block of memory aligned to the given size */
-unsigned long DynamicMMap::RawAllocate(unsigned long Size,unsigned long Aln)
+unsigned long DynamicMMap::RawAllocate(unsigned long long Size,unsigned long Aln)
 {
-   unsigned long Result = iSize;
+   unsigned long long Result = iSize;
    if (Aln != 0)
       Result += Aln - (iSize%Aln);
 
@@ -411,7 +431,7 @@ bool DynamicMMap::Grow() {
 	if (GrowFactor <= 0)
 		return _error->Error(_("Unable to increase size of the MMap as automatic growing is disabled by user."));
 
-	unsigned long const newSize = WorkSpace + GrowFactor;
+	unsigned long long const newSize = WorkSpace + GrowFactor;
 
 	if(Fd != 0) {
 		Fd->Seek(newSize - 1);
diff --git a/apt-pkg/contrib/mmap.h b/apt-pkg/contrib/mmap.h
index 2bf2c1540..6bd4a2d86 100644
--- a/apt-pkg/contrib/mmap.h
+++ b/apt-pkg/contrib/mmap.h
@@ -27,9 +27,13 @@
 
 
 #include <string>
-#include <apt-pkg/fileutl.h>
 
+#ifndef APT_8_CLEANER_HEADERS
+#include <apt-pkg/fileutl.h>
 using std::string;
+#endif
+
+class FileFd;
 
 /* This should be a 32 bit type, larger tyes use too much ram and smaller
    types are too small. Where ever possible 'unsigned long' should be used
@@ -41,7 +45,7 @@ class MMap
    protected:
    
    unsigned long Flags;
-   unsigned long iSize;
+   unsigned long long iSize;
    void *Base;
 
    // In case mmap can not be used, we keep a dup of the file
@@ -60,8 +64,8 @@ class MMap
    // Simple accessors
    inline operator void *() {return Base;};
    inline void *Data() {return Base;}; 
-   inline unsigned long Size() {return iSize;};
-   inline void AddSize(unsigned long const size) {iSize += size;};
+   inline unsigned long long Size() {return iSize;};
+   inline void AddSize(unsigned long long const size) {iSize += size;};
    inline bool validData() const { return Base != (void *)-1 && Base != 0; };
    
    // File manipulators
@@ -99,10 +103,10 @@ class DynamicMMap : public MMap
    public:
 
    // Allocation
-   unsigned long RawAllocate(unsigned long Size,unsigned long Aln = 0);
+   unsigned long RawAllocate(unsigned long long Size,unsigned long Aln = 0);
    unsigned long Allocate(unsigned long ItemSize);
    unsigned long WriteString(const char *String,unsigned long Len = (unsigned long)-1);
-   inline unsigned long WriteString(const string &S) {return WriteString(S.c_str(),S.length());};
+   inline unsigned long WriteString(const std::string &S) {return WriteString(S.c_str(),S.length());};
    void UsePools(Pool &P,unsigned int Count) {Pools = &P; PoolCount = Count;};
    
    DynamicMMap(FileFd &F,unsigned long Flags,unsigned long const &WorkSpace = 2*1024*1024,
diff --git a/apt-pkg/contrib/netrc.cc b/apt-pkg/contrib/netrc.cc
index 9ff5796c5..56e59d84b 100644
--- a/apt-pkg/contrib/netrc.cc
+++ b/apt-pkg/contrib/netrc.cc
@@ -11,9 +11,12 @@
 
    ##################################################################### */
 									/*}}}*/
+#include <config.h>
 
 #include <apt-pkg/configuration.h>
+#include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
+
 #include <iostream>
 #include <stdio.h>
 #include <stdlib.h>
@@ -23,6 +26,7 @@
 
 #include "netrc.h"
 
+using std::string;
 
 /* Get user and password from .netrc when given a machine name */
 
@@ -64,8 +68,7 @@ int parsenetrc (char *host, char *login, char *password, char *netrcfile = NULL)
     if (!home)
       return -1;
 
-    asprintf (&netrcfile, "%s%s%s", home, DIR_CHAR, NETRC);
-    if(!netrcfile)
+    if (asprintf (&netrcfile, "%s%s%s", home, DIR_CHAR, NETRC) == -1 || netrcfile == NULL)
       return -1;
     else
       netrc_alloc = true;
diff --git a/apt-pkg/contrib/netrc.h b/apt-pkg/contrib/netrc.h
index 02a5eb09f..5931d4a42 100644
--- a/apt-pkg/contrib/netrc.h
+++ b/apt-pkg/contrib/netrc.h
@@ -14,16 +14,22 @@
 #ifndef NETRC_H
 #define NETRC_H
 
+#include <string>
+
+#ifndef APT_8_CLEANER_HEADERS
 #include <apt-pkg/strutl.h>
+#endif
 
 #define DOT_CHAR "."
 #define DIR_CHAR "/"
 
+class URI;
+
 // Assume: password[0]=0, host[0] != 0.
 // If login[0] = 0, search for login and password within a machine section
 // in the netrc.
 // If login[0] != 0, search for password within machine and login.
 int parsenetrc (char *host, char *login, char *password, char *filename);
 
-void maybe_add_auth (URI &Uri, string NetRCFile);
+void maybe_add_auth (URI &Uri, std::string NetRCFile);
 #endif
diff --git a/apt-pkg/contrib/progress.cc b/apt-pkg/contrib/progress.cc
index 45e81edcb..317048845 100644
--- a/apt-pkg/contrib/progress.cc
+++ b/apt-pkg/contrib/progress.cc
@@ -8,15 +8,17 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/progress.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>
 
-#include <apti18n.h>
-
 #include <iostream>
 #include <stdio.h>
 #include <cstring>
+
+#include <apti18n.h>
 									/*}}}*/
 
 using namespace std;
@@ -35,7 +37,7 @@ OpProgress::OpProgress() : Current(0), Total(0), Size(0), SubTotal(1),
 /* Current is the Base Overall progress in units of Total. Cur is the sub
    progress in units of SubTotal. Size is a scaling factor that says what
    percent of Total SubTotal is. */
-void OpProgress::Progress(unsigned long Cur)
+void OpProgress::Progress(unsigned long long Cur)
 {
    if (Total == 0 || Size == 0 || SubTotal == 0)
       Percent = 0;
@@ -47,8 +49,8 @@ void OpProgress::Progress(unsigned long Cur)
 // OpProgress::OverallProgress - Set the overall progress		/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void OpProgress::OverallProgress(unsigned long Current, unsigned long Total,
-	  			 unsigned long Size,const string &Op)
+void OpProgress::OverallProgress(unsigned long long Current, unsigned long long Total,
+	  			 unsigned long long Size,const string &Op)
 {
    this->Current = Current;
    this->Total = Total;
@@ -65,27 +67,18 @@ void OpProgress::OverallProgress(unsigned long Current, unsigned long Total,
 // OpProgress::SubProgress - Set the sub progress state			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void OpProgress::SubProgress(unsigned long SubTotal,const string &Op)
-{
-   this->SubTotal = SubTotal;
-   SubOp = Op;
-   if (Total == 0)
-      Percent = 0;
-   else
-      Percent = Current*100.0/Total;
-   Update();
-}
-									/*}}}*/
-// OpProgress::SubProgress - Set the sub progress state			/*{{{*/
-// ---------------------------------------------------------------------
-/* */
-void OpProgress::SubProgress(unsigned long SubTotal)
+void OpProgress::SubProgress(unsigned long long SubTotal,const string &Op,
+			     float const Percent)
 {
    this->SubTotal = SubTotal;
-   if (Total == 0)
-      Percent = 0;
+   if (Op.empty() == false)
+      SubOp = Op;
+   if (Total == 0 || Percent == 0)
+      this->Percent = 0;
+   else if (Percent != -1)
+      this->Percent = this->Current += (Size*Percent)/SubTotal;
    else
-      Percent = Current*100.0/Total;
+      this->Percent = Current*100.0/Total;
    Update();
 }
 									/*}}}*/
diff --git a/apt-pkg/contrib/progress.h b/apt-pkg/contrib/progress.h
index 7dd004f7e..3a6943aee 100644
--- a/apt-pkg/contrib/progress.h
+++ b/apt-pkg/contrib/progress.h
@@ -25,26 +25,28 @@
 #include <string>
 #include <sys/time.h>
 
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
+#endif
 
 class Configuration;
 class OpProgress
 {
-   unsigned long Current;
-   unsigned long Total;
-   unsigned long Size;
-   unsigned long SubTotal;
+   unsigned long long Current;
+   unsigned long long Total;
+   unsigned long long Size;
+   unsigned long long SubTotal;
    float LastPercent;
    
    // Change reduction code
    struct timeval LastTime;
-   string LastOp;
-   string LastSubOp;
+   std::string LastOp;
+   std::string LastSubOp;
    
    protected:
    
-   string Op;
-   string SubOp;
+   std::string Op;
+   std::string SubOp;
    float Percent;
    
    bool MajorChange;
@@ -54,11 +56,10 @@ class OpProgress
    
    public:
    
-   void Progress(unsigned long Current);
-   void SubProgress(unsigned long SubTotal);
-   void SubProgress(unsigned long SubTotal,const string &Op);
-   void OverallProgress(unsigned long Current,unsigned long Total,
-			unsigned long Size,const string &Op);
+   void Progress(unsigned long long Current);
+   void SubProgress(unsigned long long SubTotal, const std::string &Op = "", float const Percent = -1);
+   void OverallProgress(unsigned long long Current,unsigned long long Total,
+			unsigned long long Size,const std::string &Op);
    virtual void Done() {};
    
    OpProgress();
@@ -68,8 +69,8 @@ class OpProgress
 class OpTextProgress : public OpProgress
 {
    protected:
-   
-   string OldOp;
+
+   std::string OldOp;
    bool NoUpdate;
    bool NoDisplay;
    unsigned long LastLen;
diff --git a/apt-pkg/contrib/sha1.cc b/apt-pkg/contrib/sha1.cc
index abc2aaf9f..b5a6a2440 100644
--- a/apt-pkg/contrib/sha1.cc
+++ b/apt-pkg/contrib/sha1.cc
@@ -29,6 +29,8 @@
  */
 									/*}}} */
 // Include Files                                                        /*{{{*/
+#include <config.h>
+
 #include <apt-pkg/sha1.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/macros.h>
@@ -36,7 +38,6 @@
 #include <string.h>
 #include <unistd.h>
 #include <inttypes.h>
-#include <config.h>
 									/*}}}*/
 
 // SHA1Transform - Alters an existing SHA-1 hash			/*{{{*/
@@ -177,67 +178,6 @@ static void SHA1Transform(uint32_t state[5],uint8_t const buffer[64])
 }
 									/*}}}*/
 
-// SHA1SumValue::SHA1SumValue - Constructs the summation from a string  /*{{{*/
-// ---------------------------------------------------------------------
-/* The string form of a SHA1 is a 40 character hex number */
-SHA1SumValue::SHA1SumValue(string Str)
-{
-   memset(Sum,0,sizeof(Sum));
-   Set(Str);
-}
-
-									/*}}} */
-// SHA1SumValue::SHA1SumValue - Default constructor                     /*{{{*/
-// ---------------------------------------------------------------------
-/* Sets the value to 0 */
-SHA1SumValue::SHA1SumValue()
-{
-   memset(Sum,0,sizeof(Sum));
-}
-
-									/*}}} */
-// SHA1SumValue::Set - Set the sum from a string                        /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the hex string into a set of chars */
-bool SHA1SumValue::Set(string Str)
-{
-   return Hex2Num(Str,Sum,sizeof(Sum));
-}
-
-									/*}}} */
-// SHA1SumValue::Value - Convert the number into a string               /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the set of chars into a hex string in lower case */
-string SHA1SumValue::Value() const
-{
-   char Conv[16] =
-      { '0','1','2','3','4','5','6','7','8','9','a','b',
-      'c','d','e','f'
-   };
-   char Result[41];
-   Result[40] = 0;
-
-   // Convert each char into two letters
-   int J = 0;
-   int I = 0;
-   for (; I != 40; J++,I += 2)
-   {
-      Result[I] = Conv[Sum[J] >> 4];
-      Result[I + 1] = Conv[Sum[J] & 0xF];
-   }
-
-   return string(Result);
-}
-
-									/*}}} */
-// SHA1SumValue::operator == - Comparator                               /*{{{*/
-// ---------------------------------------------------------------------
-/* Call memcmp on the buffer */
-bool SHA1SumValue::operator == (const SHA1SumValue & rhs) const
-{
-   return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
-}
-									/*}}}*/
 // SHA1Summation::SHA1Summation - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -289,18 +229,20 @@ SHA1SumValue SHA1Summation::Result()
 
    // Transfer over the result
    SHA1SumValue Value;
+   unsigned char res[20];
    for (unsigned i = 0; i < 20; i++)
    {
-      Value.Sum[i] = (unsigned char)
+      res[i] = (unsigned char)
 	 ((state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
    }
+   Value.Set(res);
    return Value;
 }
 									/*}}}*/
 // SHA1Summation::Add - Adds content of buffer into the checksum        /*{{{*/
 // ---------------------------------------------------------------------
 /* May not be called after Result() is called */
-bool SHA1Summation::Add(const unsigned char *data,unsigned long len)
+bool SHA1Summation::Add(const unsigned char *data,unsigned long long len)
 {
    if (Done)
       return false;
@@ -331,26 +273,3 @@ bool SHA1Summation::Add(const unsigned char *data,unsigned long len)
    return true;
 }
 									/*}}}*/
-// SHA1Summation::AddFD - Add content of file into the checksum         /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool SHA1Summation::AddFD(int Fd,unsigned long Size)
-{
-   unsigned char Buf[64 * 64];
-   int Res = 0;
-   int ToEOF = (Size == 0);
-   while (Size != 0 || ToEOF)
-   {
-      unsigned n = sizeof(Buf);
-      if (!ToEOF) n = min(Size,(unsigned long)n);
-      Res = read(Fd,Buf,n);
-      if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
-	 return false;
-      if (ToEOF && Res == 0) // EOF
-         break;
-      Size -= Res;
-      Add(Buf,Res);
-   }
-   return true;
-}
-									/*}}}*/
diff --git a/apt-pkg/contrib/sha1.h b/apt-pkg/contrib/sha1.h
index 8ddd889f1..a8d55eb13 100644
--- a/apt-pkg/contrib/sha1.h
+++ b/apt-pkg/contrib/sha1.h
@@ -18,33 +18,16 @@
 #include <cstring>
 #include <algorithm>
 
+#include "hashsum_template.h"
+
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
 using std::min;
+#endif
 
-class SHA1Summation;
-
-class SHA1SumValue
-{
-   friend class SHA1Summation;
-   unsigned char Sum[20];
-   
-   public:
-
-   // Accessors
-   bool operator ==(const SHA1SumValue &rhs) const; 
-   string Value() const;
-   inline void Value(unsigned char S[20])
-         {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[20]) 
-         {for (int I = 0; I != sizeof(Sum); I++) Sum[I] = S[I];};
-
-   SHA1SumValue(string Str);
-   SHA1SumValue();
-};
+typedef  HashSumValue<160> SHA1SumValue;
 
-class SHA1Summation
+class SHA1Summation : public SummationImplementation
 {
    /* assumes 64-bit alignment just in case */
    unsigned char Buffer[64] __attribute__((aligned(8)));
@@ -53,12 +36,9 @@ class SHA1Summation
    bool Done;
    
    public:
+   bool Add(const unsigned char *inbuf, unsigned long long inlen);
+   using SummationImplementation::Add;
 
-   bool Add(const unsigned char *inbuf,unsigned long inlen);
-   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);};
    SHA1SumValue Result();
    
    SHA1Summation();
diff --git a/apt-pkg/contrib/sha2.h b/apt-pkg/contrib/sha2.h
new file mode 100644
index 000000000..51c921dbd
--- /dev/null
+++ b/apt-pkg/contrib/sha2.h
@@ -0,0 +1,103 @@
+// -*- mode: cpp; mode: fold -*-
+// Description                                                          /*{{{*/
+// $Id: sha512.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
+/* ######################################################################
+
+   SHA{512,256}SumValue - Storage for a SHA-{512,256} hash.
+   SHA{512,256}Summation - SHA-{512,256} Secure Hash Algorithm.
+   
+   This is a C++ interface to a set of SHA{512,256}Sum functions, that mirrors
+   the equivalent MD5 & SHA1 classes. 
+
+   ##################################################################### */
+                                                                        /*}}}*/
+#ifndef APTPKG_SHA2_H
+#define APTPKG_SHA2_H
+
+#include <string>
+#include <cstring>
+#include <algorithm>
+#include <stdint.h>
+
+#include "sha2_internal.h"
+#include "hashsum_template.h"
+
+typedef HashSumValue<512> SHA512SumValue;
+typedef HashSumValue<256> SHA256SumValue;
+
+class SHA2SummationBase : public SummationImplementation
+{
+ protected:
+   bool Done;
+ public:
+   bool Add(const unsigned char *inbuf, unsigned long long len) = 0;
+
+   void Result();
+};
+
+class SHA256Summation : public SHA2SummationBase
+{
+   SHA256_CTX ctx;
+   unsigned char Sum[32];
+
+   public:
+   bool Add(const unsigned char *inbuf, unsigned long long len)
+   {
+      if (Done) 
+         return false;
+      SHA256_Update(&ctx, inbuf, len);
+      return true;
+   };
+   using SummationImplementation::Add;
+
+   SHA256SumValue Result()
+   {
+      if (!Done) {
+         SHA256_Final(Sum, &ctx);
+         Done = true;
+      }
+      SHA256SumValue res;
+      res.Set(Sum);
+      return res;
+   };
+   SHA256Summation() 
+   {
+      SHA256_Init(&ctx);
+      Done = false;
+   };
+};
+
+class SHA512Summation : public SHA2SummationBase
+{
+   SHA512_CTX ctx;
+   unsigned char Sum[64];
+
+   public:
+   bool Add(const unsigned char *inbuf, unsigned long long len)
+   {
+      if (Done) 
+         return false;
+      SHA512_Update(&ctx, inbuf, len);
+      return true;
+   };
+   using SummationImplementation::Add;
+
+   SHA512SumValue Result()
+   {
+      if (!Done) {
+         SHA512_Final(Sum, &ctx);
+         Done = true;
+      }
+      SHA512SumValue res;
+      res.Set(Sum);
+      return res;
+   };
+   SHA512Summation()
+   {
+      SHA512_Init(&ctx);
+      Done = false;
+   };
+};
+
+
+#endif
diff --git a/apt-pkg/contrib/sha256.cc b/apt-pkg/contrib/sha256.cc
deleted file mode 100644
index e380c13ae..000000000
--- a/apt-pkg/contrib/sha256.cc
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * Cryptographic API.							{{{
- *
- * SHA-256, as specified in
- * http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf
- *
- * SHA-256 code by Jean-Luc Cooke <jlcooke@certainkey.com>.
- *
- * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- *
- * Ported from the Linux kernel to Apt by Anthony Towns <ajt@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
- * any later version.
- *
- */									/*}}}*/
-
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/sha256.h"
-#endif
-
-
-#define SHA256_DIGEST_SIZE      32
-#define SHA256_HMAC_BLOCK_SIZE  64
-
-#define ror32(value,bits) (((value) >> (bits)) | ((value) << (32 - (bits))))
-
-#include <apt-pkg/sha256.h>
-#include <apt-pkg/strutl.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <arpa/inet.h>
-
-typedef uint32_t u32;
-typedef uint8_t  u8;
-
-static inline u32 Ch(u32 x, u32 y, u32 z)
-{
-        return z ^ (x & (y ^ z));
-}
-
-static inline u32 Maj(u32 x, u32 y, u32 z)
-{
-        return (x & y) | (z & (x | y));
-}
-
-#define e0(x)       (ror32(x, 2) ^ ror32(x,13) ^ ror32(x,22))
-#define e1(x)       (ror32(x, 6) ^ ror32(x,11) ^ ror32(x,25))
-#define s0(x)       (ror32(x, 7) ^ ror32(x,18) ^ (x >> 3))
-#define s1(x)       (ror32(x,17) ^ ror32(x,19) ^ (x >> 10))
-
-#define H0         0x6a09e667
-#define H1         0xbb67ae85
-#define H2         0x3c6ef372
-#define H3         0xa54ff53a
-#define H4         0x510e527f
-#define H5         0x9b05688c
-#define H6         0x1f83d9ab
-#define H7         0x5be0cd19
-
-static inline void LOAD_OP(int I, u32 *W, const u8 *input)		/*{{{*/
-{
-	W[I] = (  ((u32) input[I * 4 + 0] << 24)
-		| ((u32) input[I * 4 + 1] << 16)
-		| ((u32) input[I * 4 + 2] << 8)
-		| ((u32) input[I * 4 + 3]));
-}
-									/*}}}*/
-static inline void BLEND_OP(int I, u32 *W)
-{
-        W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
-}
-
-static void sha256_transform(u32 *state, const u8 *input)		/*{{{*/
-{
-        u32 a, b, c, d, e, f, g, h, t1, t2;
-        u32 W[64];
-        int i;
-
-        /* load the input */
-        for (i = 0; i < 16; i++)
-                LOAD_OP(i, W, input);
-
-        /* now blend */
-        for (i = 16; i < 64; i++)
-                BLEND_OP(i, W);
-    
-        /* load the state into our registers */
-        a=state[0];  b=state[1];  c=state[2];  d=state[3];
-        e=state[4];  f=state[5];  g=state[6];  h=state[7];
-
-        /* now iterate */
-        t1 = h + e1(e) + Ch(e,f,g) + 0x428a2f98 + W[ 0];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x71374491 + W[ 1];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xb5c0fbcf + W[ 2];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xe9b5dba5 + W[ 3];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x3956c25b + W[ 4];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x59f111f1 + W[ 5];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x923f82a4 + W[ 6];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xab1c5ed5 + W[ 7];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xd807aa98 + W[ 8];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x12835b01 + W[ 9];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x243185be + W[10];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x550c7dc3 + W[11];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x72be5d74 + W[12];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x80deb1fe + W[13];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x9bdc06a7 + W[14];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xc19bf174 + W[15];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xe49b69c1 + W[16];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xefbe4786 + W[17];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x0fc19dc6 + W[18];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x240ca1cc + W[19];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x2de92c6f + W[20];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x4a7484aa + W[21];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x5cb0a9dc + W[22];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x76f988da + W[23];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x983e5152 + W[24];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xa831c66d + W[25];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xb00327c8 + W[26];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xbf597fc7 + W[27];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0xc6e00bf3 + W[28];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xd5a79147 + W[29];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x06ca6351 + W[30];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x14292967 + W[31];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x27b70a85 + W[32];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x2e1b2138 + W[33];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x4d2c6dfc + W[34];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x53380d13 + W[35];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x650a7354 + W[36];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x766a0abb + W[37];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x81c2c92e + W[38];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x92722c85 + W[39];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0xa2bfe8a1 + W[40];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0xa81a664b + W[41];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0xc24b8b70 + W[42];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0xc76c51a3 + W[43];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0xd192e819 + W[44];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xd6990624 + W[45];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0xf40e3585 + W[46];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x106aa070 + W[47];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x19a4c116 + W[48];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x1e376c08 + W[49];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x2748774c + W[50];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x34b0bcb5 + W[51];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x391c0cb3 + W[52];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0x4ed8aa4a + W[53];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0x5b9cca4f + W[54];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0x682e6ff3 + W[55];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        t1 = h + e1(e) + Ch(e,f,g) + 0x748f82ee + W[56];
-        t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
-        t1 = g + e1(d) + Ch(d,e,f) + 0x78a5636f + W[57];
-        t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
-        t1 = f + e1(c) + Ch(c,d,e) + 0x84c87814 + W[58];
-        t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
-        t1 = e + e1(b) + Ch(b,c,d) + 0x8cc70208 + W[59];
-        t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
-        t1 = d + e1(a) + Ch(a,b,c) + 0x90befffa + W[60];
-        t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
-        t1 = c + e1(h) + Ch(h,a,b) + 0xa4506ceb + W[61];
-        t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
-        t1 = b + e1(g) + Ch(g,h,a) + 0xbef9a3f7 + W[62];
-        t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
-        t1 = a + e1(f) + Ch(f,g,h) + 0xc67178f2 + W[63];
-        t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
-
-        state[0] += a; state[1] += b; state[2] += c; state[3] += d;
-        state[4] += e; state[5] += f; state[6] += g; state[7] += h;
-
-        /* clear any sensitive info... */
-        a = b = c = d = e = f = g = h = t1 = t2 = 0;
-        memset(W, 0, 64 * sizeof(u32));
-}
-									/*}}}*/
-SHA256Summation::SHA256Summation()					/*{{{*/
-{
-        Sum.state[0] = H0;
-        Sum.state[1] = H1;
-        Sum.state[2] = H2;
-        Sum.state[3] = H3;
-        Sum.state[4] = H4;
-        Sum.state[5] = H5;
-        Sum.state[6] = H6;
-        Sum.state[7] = H7;
-        Sum.count[0] = Sum.count[1] = 0;
-        memset(Sum.buf, 0, sizeof(Sum.buf));
-        Done = false;
-}
-									/*}}}*/
-bool SHA256Summation::Add(const u8 *data, unsigned long len)		/*{{{*/
-{
-        struct sha256_ctx *sctx = &Sum;
-        unsigned int i, index, part_len;
-
-        if (Done) return false;
-
-        /* Compute number of bytes mod 128 */
-        index = (unsigned int)((sctx->count[0] >> 3) & 0x3f);
-
-        /* Update number of bits */
-        if ((sctx->count[0] += (len << 3)) < (len << 3)) {
-                sctx->count[1]++;
-                sctx->count[1] += (len >> 29);
-        }
-
-        part_len = 64 - index;
-
-        /* Transform as many times as possible. */
-        if (len >= part_len) {
-                memcpy(&sctx->buf[index], data, part_len);
-                sha256_transform(sctx->state, sctx->buf);
-
-                for (i = part_len; i + 63 < len; i += 64)
-                        sha256_transform(sctx->state, &data[i]);
-                index = 0;
-        } else {
-                i = 0;
-        }
-
-        /* Buffer remaining input */
-        memcpy(&sctx->buf[index], &data[i], len-i);
-
-        return true;
-}
-									/*}}}*/
-SHA256SumValue SHA256Summation::Result()				/*{{{*/
-{
-   struct sha256_ctx *sctx = &Sum;
-   if (!Done) {
-        u8 bits[8];
-        unsigned int index, pad_len, t;
-        static const u8 padding[64] = { 0x80, };
-
-        /* Save number of bits */
-        t = sctx->count[0];
-        bits[7] = t; t >>= 8;
-        bits[6] = t; t >>= 8;
-        bits[5] = t; t >>= 8;
-        bits[4] = t;
-        t = sctx->count[1];
-        bits[3] = t; t >>= 8;
-        bits[2] = t; t >>= 8;
-        bits[1] = t; t >>= 8;
-        bits[0] = t;
-
-        /* Pad out to 56 mod 64. */
-        index = (sctx->count[0] >> 3) & 0x3f;
-        pad_len = (index < 56) ? (56 - index) : ((64+56) - index);
-        Add(padding, pad_len);
-
-        /* Append length (before padding) */
-        Add(bits, 8);
-   }
-
-   Done = true;
-
-   /* Store state in digest */
-
-   SHA256SumValue res;
-   u8 *out = res.Sum;
-
-   int i, j;
-   unsigned int t;
-   for (i = j = 0; i < 8; i++, j += 4) {
-      t = sctx->state[i];
-      out[j+3] = t; t >>= 8;
-      out[j+2] = t; t >>= 8;
-      out[j+1] = t; t >>= 8;
-      out[j  ] = t;
-   }
-
-   return res;
-}
-									/*}}}*/
-// SHA256SumValue::SHA256SumValue - Constructs the sum from a string   /*{{{*/
-// ---------------------------------------------------------------------
-/* The string form of a SHA256 is a 64 character hex number */
-SHA256SumValue::SHA256SumValue(string Str)
-{
-   memset(Sum,0,sizeof(Sum));
-   Set(Str);
-}
-                                                                       /*}}}*/
-// SHA256SumValue::SHA256SumValue - Default constructor                /*{{{*/
-// ---------------------------------------------------------------------
-/* Sets the value to 0 */
-SHA256SumValue::SHA256SumValue()
-{
-   memset(Sum,0,sizeof(Sum));
-}
-                                                                       /*}}}*/
-// SHA256SumValue::Set - Set the sum from a string                     /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the hex string into a set of chars */
-bool SHA256SumValue::Set(string Str)
-{
-   return Hex2Num(Str,Sum,sizeof(Sum));
-}
-                                                                       /*}}}*/
-// SHA256SumValue::Value - Convert the number into a string            /*{{{*/
-// ---------------------------------------------------------------------
-/* Converts the set of chars into a hex string in lower case */
-string SHA256SumValue::Value() const
-{
-   char Conv[16] =
-      { '0','1','2','3','4','5','6','7','8','9','a','b',
-      'c','d','e','f'
-   };
-   char Result[65];
-   Result[64] = 0;
-
-   // Convert each char into two letters
-   int J = 0;
-   int I = 0;
-   for (; I != 64; J++,I += 2)
-   {
-      Result[I] = Conv[Sum[J] >> 4];
-      Result[I + 1] = Conv[Sum[J] & 0xF];
-   }
-
-   return string(Result);
-}
-									/*}}}*/
-// SHA256SumValue::operator == - Comparator                            /*{{{*/
-// ---------------------------------------------------------------------
-/* Call memcmp on the buffer */
-bool SHA256SumValue::operator == (const SHA256SumValue & rhs) const
-{
-   return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
-}
-                                                                       /*}}}*/
-// SHA256Summation::AddFD - Add content of file into the checksum      /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool SHA256Summation::AddFD(int Fd,unsigned long Size)
-{
-   unsigned char Buf[64 * 64];
-   int Res = 0;
-   int ToEOF = (Size == 0);
-   while (Size != 0 || ToEOF)
-   {
-      unsigned n = sizeof(Buf);
-      if (!ToEOF) n = min(Size,(unsigned long)n);
-      Res = read(Fd,Buf,n);
-      if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
-         return false;
-      if (ToEOF && Res == 0) // EOF
-         break;
-      Size -= Res;
-      Add(Buf,Res);
-   }
-   return true;
-}
-                                                                       /*}}}*/
-
diff --git a/apt-pkg/contrib/sha256.h b/apt-pkg/contrib/sha256.h
index 5934b5641..15146c948 100644
--- a/apt-pkg/contrib/sha256.h
+++ b/apt-pkg/contrib/sha256.h
@@ -1,72 +1,8 @@
-// -*- mode: cpp; mode: fold -*-
-// Description                                                          /*{{{*/
-// $Id: sha1.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
-/* ######################################################################
-
-   SHA256SumValue - Storage for a SHA-256 hash.
-   SHA256Summation - SHA-256 Secure Hash Algorithm.
-   
-   This is a C++ interface to a set of SHA256Sum functions, that mirrors
-   the equivalent MD5 & SHA1 classes. 
-
-   ##################################################################### */
-                                                                        /*}}}*/
 #ifndef APTPKG_SHA256_H
 #define APTPKG_SHA256_H
 
-#include <string>
-#include <cstring>
-#include <algorithm>
-#include <stdint.h>
-
-using std::string;
-using std::min;
-
-class SHA256Summation;
-
-class SHA256SumValue
-{
-   friend class SHA256Summation;
-   unsigned char Sum[32];
-   
-   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();
-};
-
-struct sha256_ctx {
-    uint32_t count[2];
-    uint32_t state[8];
-    uint8_t buf[128];
-};
-
-class SHA256Summation
-{
-   struct sha256_ctx Sum;
-
-   bool Done;
-
-   public:
+#include "sha2.h"
 
-   bool Add(const unsigned char *inbuf,unsigned long inlen);
-   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);};
-   SHA256SumValue Result();
-   
-   SHA256Summation();
-};
+#warning "This header is deprecated, please include sha2.h instead"
 
 #endif
diff --git a/apt-pkg/contrib/sha2_internal.cc b/apt-pkg/contrib/sha2_internal.cc
new file mode 100644
index 000000000..6d27e8f2b
--- /dev/null
+++ b/apt-pkg/contrib/sha2_internal.cc
@@ -0,0 +1,1076 @@
+/*
+ * FILE:	sha2.c
+ * AUTHOR:	Aaron D. Gifford - http://www.aarongifford.com/
+ * 
+ * Copyright (c) 2000-2001, Aaron D. Gifford
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
+ */
+#include <config.h>
+
+#include <string.h>	/* memcpy()/memset() or bcopy()/bzero() */
+#include <assert.h>	/* assert() */
+#include "sha2_internal.h"
+
+/*
+ * ASSERT NOTE:
+ * Some sanity checking code is included using assert().  On my FreeBSD
+ * system, this additional code can be removed by compiling with NDEBUG
+ * defined.  Check your own systems manpage on assert() to see how to
+ * compile WITHOUT the sanity checking code on your system.
+ *
+ * UNROLLED TRANSFORM LOOP NOTE:
+ * You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform
+ * loop version for the hash transform rounds (defined using macros
+ * later in this file).  Either define on the command line, for example:
+ *
+ *   cc -DSHA2_UNROLL_TRANSFORM -o sha2 sha2.c sha2prog.c
+ *
+ * or define below:
+ *
+ *   #define SHA2_UNROLL_TRANSFORM
+ *
+ */
+
+
+/*** SHA-256/384/512 Machine Architecture Definitions *****************/
+/*
+ * BYTE_ORDER NOTE:
+ *
+ * Please make sure that your system defines BYTE_ORDER.  If your
+ * architecture is little-endian, make sure it also defines
+ * LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are
+ * equivilent.
+ *
+ * If your system does not define the above, then you can do so by
+ * hand like this:
+ *
+ *   #define LITTLE_ENDIAN 1234
+ *   #define BIG_ENDIAN    4321
+ *
+ * And for little-endian machines, add:
+ *
+ *   #define BYTE_ORDER LITTLE_ENDIAN 
+ *
+ * Or for big-endian machines:
+ *
+ *   #define BYTE_ORDER BIG_ENDIAN
+ *
+ * The FreeBSD machine this was written on defines BYTE_ORDER
+ * appropriately by including <sys/types.h> (which in turn includes
+ * <machine/endian.h> where the appropriate definitions are actually
+ * made).
+ */
+#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
+#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
+#endif
+
+/*
+ * Define the followingsha2_* types to types of the correct length on
+ * the native archtecture.   Most BSD systems and Linux define u_intXX_t
+ * types.  Machines with very recent ANSI C headers, can use the
+ * uintXX_t definintions from inttypes.h by defining SHA2_USE_INTTYPES_H
+ * during compile or in the sha.h header file.
+ *
+ * Machines that support neither u_intXX_t nor inttypes.h's uintXX_t
+ * will need to define these three typedefs below (and the appropriate
+ * ones in sha.h too) by hand according to their system architecture.
+ *
+ * Thank you, Jun-ichiro itojun Hagino, for suggesting using u_intXX_t
+ * types and pointing out recent ANSI C support for uintXX_t in inttypes.h.
+ */
+#ifdef SHA2_USE_INTTYPES_H
+
+typedef uint8_t  sha2_byte;	/* Exactly 1 byte */
+typedef uint32_t sha2_word32;	/* Exactly 4 bytes */
+typedef uint64_t sha2_word64;	/* Exactly 8 bytes */
+
+#else /* SHA2_USE_INTTYPES_H */
+
+typedef u_int8_t  sha2_byte;	/* Exactly 1 byte */
+typedef u_int32_t sha2_word32;	/* Exactly 4 bytes */
+typedef u_int64_t sha2_word64;	/* Exactly 8 bytes */
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+
+/*** SHA-256/384/512 Various Length Definitions ***********************/
+/* NOTE: Most of these are in sha2.h */
+#define SHA256_SHORT_BLOCK_LENGTH	(SHA256_BLOCK_LENGTH - 8)
+#define SHA384_SHORT_BLOCK_LENGTH	(SHA384_BLOCK_LENGTH - 16)
+#define SHA512_SHORT_BLOCK_LENGTH	(SHA512_BLOCK_LENGTH - 16)
+
+
+/*** ENDIAN REVERSAL MACROS *******************************************/
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define REVERSE32(w,x)	{ \
+	sha2_word32 tmp = (w); \
+	tmp = (tmp >> 16) | (tmp << 16); \
+	(x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \
+}
+#define REVERSE64(w,x)	{ \
+	sha2_word64 tmp = (w); \
+	tmp = (tmp >> 32) | (tmp << 32); \
+	tmp = ((tmp & 0xff00ff00ff00ff00ULL) >> 8) | \
+	      ((tmp & 0x00ff00ff00ff00ffULL) << 8); \
+	(x) = ((tmp & 0xffff0000ffff0000ULL) >> 16) | \
+	      ((tmp & 0x0000ffff0000ffffULL) << 16); \
+}
+#endif /* BYTE_ORDER == LITTLE_ENDIAN */
+
+/*
+ * Macro for incrementally adding the unsigned 64-bit integer n to the
+ * unsigned 128-bit integer (represented using a two-element array of
+ * 64-bit words):
+ */
+#define ADDINC128(w,n)	{ \
+	(w)[0] += (sha2_word64)(n); \
+	if ((w)[0] < (n)) { \
+		(w)[1]++; \
+	} \
+}
+
+/*
+ * Macros for copying blocks of memory and for zeroing out ranges
+ * of memory.  Using these macros makes it easy to switch from
+ * using memset()/memcpy() and using bzero()/bcopy().
+ *
+ * Please define either SHA2_USE_MEMSET_MEMCPY or define
+ * SHA2_USE_BZERO_BCOPY depending on which function set you
+ * choose to use:
+ */
+#if !defined(SHA2_USE_MEMSET_MEMCPY) && !defined(SHA2_USE_BZERO_BCOPY)
+/* Default to memset()/memcpy() if no option is specified */
+#define	SHA2_USE_MEMSET_MEMCPY	1
+#endif
+#if defined(SHA2_USE_MEMSET_MEMCPY) && defined(SHA2_USE_BZERO_BCOPY)
+/* Abort with an error if BOTH options are defined */
+#error Define either SHA2_USE_MEMSET_MEMCPY or SHA2_USE_BZERO_BCOPY, not both!
+#endif
+
+#ifdef SHA2_USE_MEMSET_MEMCPY
+#define MEMSET_BZERO(p,l)	memset((p), 0, (l))
+#define MEMCPY_BCOPY(d,s,l)	memcpy((d), (s), (l))
+#endif
+#ifdef SHA2_USE_BZERO_BCOPY
+#define MEMSET_BZERO(p,l)	bzero((p), (l))
+#define MEMCPY_BCOPY(d,s,l)	bcopy((s), (d), (l))
+#endif
+
+
+/*** THE SIX LOGICAL FUNCTIONS ****************************************/
+/*
+ * Bit shifting and rotation (used by the six SHA-XYZ logical functions:
+ *
+ *   NOTE:  The naming of R and S appears backwards here (R is a SHIFT and
+ *   S is a ROTATION) because the SHA-256/384/512 description document
+ *   (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this
+ *   same "backwards" definition.
+ */
+/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */
+#define R(b,x) 		((x) >> (b))
+/* 32-bit Rotate-right (used in SHA-256): */
+#define S32(b,x)	(((x) >> (b)) | ((x) << (32 - (b))))
+/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */
+#define S64(b,x)	(((x) >> (b)) | ((x) << (64 - (b))))
+
+/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */
+#define Ch(x,y,z)	(((x) & (y)) ^ ((~(x)) & (z)))
+#define Maj(x,y,z)	(((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
+
+/* Four of six logical functions used in SHA-256: */
+#define Sigma0_256(x)	(S32(2,  (x)) ^ S32(13, (x)) ^ S32(22, (x)))
+#define Sigma1_256(x)	(S32(6,  (x)) ^ S32(11, (x)) ^ S32(25, (x)))
+#define sigma0_256(x)	(S32(7,  (x)) ^ S32(18, (x)) ^ R(3 ,   (x)))
+#define sigma1_256(x)	(S32(17, (x)) ^ S32(19, (x)) ^ R(10,   (x)))
+
+/* Four of six logical functions used in SHA-384 and SHA-512: */
+#define Sigma0_512(x)	(S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
+#define Sigma1_512(x)	(S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
+#define sigma0_512(x)	(S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7,   (x)))
+#define sigma1_512(x)	(S64(19, (x)) ^ S64(61, (x)) ^ R( 6,   (x)))
+
+/*** INTERNAL FUNCTION PROTOTYPES *************************************/
+/* NOTE: These should not be accessed directly from outside this
+ * library -- they are intended for private internal visibility/use
+ * only.
+ */
+static void SHA512_Last(SHA512_CTX*);
+static void SHA256_Transform(SHA256_CTX*, const sha2_word32*);
+static void SHA512_Transform(SHA512_CTX*, const sha2_word64*);
+
+
+/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
+/* Hash constant words K for SHA-256: */
+const static sha2_word32 K256[64] = {
+	0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
+	0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
+	0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
+	0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
+	0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
+	0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
+	0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
+	0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
+	0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
+	0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
+	0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
+	0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
+	0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
+	0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
+	0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
+	0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
+};
+
+/* Initial hash value H for SHA-256: */
+const static sha2_word32 sha256_initial_hash_value[8] = {
+	0x6a09e667UL,
+	0xbb67ae85UL,
+	0x3c6ef372UL,
+	0xa54ff53aUL,
+	0x510e527fUL,
+	0x9b05688cUL,
+	0x1f83d9abUL,
+	0x5be0cd19UL
+};
+
+/* Hash constant words K for SHA-384 and SHA-512: */
+const static sha2_word64 K512[80] = {
+	0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
+	0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
+	0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
+	0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
+	0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
+	0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
+	0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
+	0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
+	0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
+	0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
+	0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
+	0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
+	0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
+	0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
+	0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
+	0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
+	0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
+	0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
+	0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
+	0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
+	0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
+	0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
+	0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
+	0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
+	0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
+	0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
+	0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
+	0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
+	0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
+	0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
+	0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
+	0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
+	0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
+	0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
+	0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
+	0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
+	0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
+	0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
+	0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
+	0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
+};
+
+/* Initial hash value H for SHA-384 */
+const static sha2_word64 sha384_initial_hash_value[8] = {
+	0xcbbb9d5dc1059ed8ULL,
+	0x629a292a367cd507ULL,
+	0x9159015a3070dd17ULL,
+	0x152fecd8f70e5939ULL,
+	0x67332667ffc00b31ULL,
+	0x8eb44a8768581511ULL,
+	0xdb0c2e0d64f98fa7ULL,
+	0x47b5481dbefa4fa4ULL
+};
+
+/* Initial hash value H for SHA-512 */
+const static sha2_word64 sha512_initial_hash_value[8] = {
+	0x6a09e667f3bcc908ULL,
+	0xbb67ae8584caa73bULL,
+	0x3c6ef372fe94f82bULL,
+	0xa54ff53a5f1d36f1ULL,
+	0x510e527fade682d1ULL,
+	0x9b05688c2b3e6c1fULL,
+	0x1f83d9abfb41bd6bULL,
+	0x5be0cd19137e2179ULL
+};
+
+/*
+ * Constant used by SHA256/384/512_End() functions for converting the
+ * digest to a readable hexadecimal character string:
+ */
+static const char *sha2_hex_digits = "0123456789abcdef";
+
+
+/*** SHA-256: *********************************************************/
+void SHA256_Init(SHA256_CTX* context) {
+	if (context == (SHA256_CTX*)0) {
+		return;
+	}
+	MEMCPY_BCOPY(context->state, sha256_initial_hash_value, SHA256_DIGEST_LENGTH);
+	MEMSET_BZERO(context->buffer, SHA256_BLOCK_LENGTH);
+	context->bitcount = 0;
+}
+
+#ifdef SHA2_UNROLL_TRANSFORM
+
+/* Unrolled SHA-256 round macros: */
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+
+#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h)	\
+	REVERSE32(*data++, W256[j]); \
+	T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
+             K256[j] + W256[j]; \
+	(d) += T1; \
+	(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
+	j++
+
+
+#else /* BYTE_ORDER == LITTLE_ENDIAN */
+
+#define ROUND256_0_TO_15(a,b,c,d,e,f,g,h)	\
+	T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + \
+	     K256[j] + (W256[j] = *data++); \
+	(d) += T1; \
+	(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
+	j++
+
+#endif /* BYTE_ORDER == LITTLE_ENDIAN */
+
+#define ROUND256(a,b,c,d,e,f,g,h)	\
+	s0 = W256[(j+1)&0x0f]; \
+	s0 = sigma0_256(s0); \
+	s1 = W256[(j+14)&0x0f]; \
+	s1 = sigma1_256(s1); \
+	T1 = (h) + Sigma1_256(e) + Ch((e), (f), (g)) + K256[j] + \
+	     (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0); \
+	(d) += T1; \
+	(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
+	j++
+
+static void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
+	sha2_word32	a, b, c, d, e, f, g, h, s0, s1;
+	sha2_word32	T1, *W256;
+	int		j;
+
+	W256 = (sha2_word32*)context->buffer;
+
+	/* Initialize registers with the prev. intermediate value */
+	a = context->state[0];
+	b = context->state[1];
+	c = context->state[2];
+	d = context->state[3];
+	e = context->state[4];
+	f = context->state[5];
+	g = context->state[6];
+	h = context->state[7];
+
+	j = 0;
+	do {
+		/* Rounds 0 to 15 (unrolled): */
+		ROUND256_0_TO_15(a,b,c,d,e,f,g,h);
+		ROUND256_0_TO_15(h,a,b,c,d,e,f,g);
+		ROUND256_0_TO_15(g,h,a,b,c,d,e,f);
+		ROUND256_0_TO_15(f,g,h,a,b,c,d,e);
+		ROUND256_0_TO_15(e,f,g,h,a,b,c,d);
+		ROUND256_0_TO_15(d,e,f,g,h,a,b,c);
+		ROUND256_0_TO_15(c,d,e,f,g,h,a,b);
+		ROUND256_0_TO_15(b,c,d,e,f,g,h,a);
+	} while (j < 16);
+
+	/* Now for the remaining rounds to 64: */
+	do {
+		ROUND256(a,b,c,d,e,f,g,h);
+		ROUND256(h,a,b,c,d,e,f,g);
+		ROUND256(g,h,a,b,c,d,e,f);
+		ROUND256(f,g,h,a,b,c,d,e);
+		ROUND256(e,f,g,h,a,b,c,d);
+		ROUND256(d,e,f,g,h,a,b,c);
+		ROUND256(c,d,e,f,g,h,a,b);
+		ROUND256(b,c,d,e,f,g,h,a);
+	} while (j < 64);
+
+	/* Compute the current intermediate hash value */
+	context->state[0] += a;
+	context->state[1] += b;
+	context->state[2] += c;
+	context->state[3] += d;
+	context->state[4] += e;
+	context->state[5] += f;
+	context->state[6] += g;
+	context->state[7] += h;
+
+	/* Clean up */
+	a = b = c = d = e = f = g = h = T1 = 0;
+}
+
+#else /* SHA2_UNROLL_TRANSFORM */
+
+static void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
+	sha2_word32	a, b, c, d, e, f, g, h, s0, s1;
+	sha2_word32	T1, T2, *W256;
+	int		j;
+
+	W256 = (sha2_word32*)context->buffer;
+
+	/* Initialize registers with the prev. intermediate value */
+	a = context->state[0];
+	b = context->state[1];
+	c = context->state[2];
+	d = context->state[3];
+	e = context->state[4];
+	f = context->state[5];
+	g = context->state[6];
+	h = context->state[7];
+
+	j = 0;
+	do {
+#if BYTE_ORDER == LITTLE_ENDIAN
+		/* Copy data while converting to host byte order */
+		REVERSE32(*data++,W256[j]);
+		/* Apply the SHA-256 compression function to update a..h */
+		T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + W256[j];
+#else /* BYTE_ORDER == LITTLE_ENDIAN */
+		/* Apply the SHA-256 compression function to update a..h with copy */
+		T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + (W256[j] = *data++);
+#endif /* BYTE_ORDER == LITTLE_ENDIAN */
+		T2 = Sigma0_256(a) + Maj(a, b, c);
+		h = g;
+		g = f;
+		f = e;
+		e = d + T1;
+		d = c;
+		c = b;
+		b = a;
+		a = T1 + T2;
+
+		j++;
+	} while (j < 16);
+
+	do {
+		/* Part of the message block expansion: */
+		s0 = W256[(j+1)&0x0f];
+		s0 = sigma0_256(s0);
+		s1 = W256[(j+14)&0x0f];	
+		s1 = sigma1_256(s1);
+
+		/* Apply the SHA-256 compression function to update a..h */
+		T1 = h + Sigma1_256(e) + Ch(e, f, g) + K256[j] + 
+		     (W256[j&0x0f] += s1 + W256[(j+9)&0x0f] + s0);
+		T2 = Sigma0_256(a) + Maj(a, b, c);
+		h = g;
+		g = f;
+		f = e;
+		e = d + T1;
+		d = c;
+		c = b;
+		b = a;
+		a = T1 + T2;
+
+		j++;
+	} while (j < 64);
+
+	/* Compute the current intermediate hash value */
+	context->state[0] += a;
+	context->state[1] += b;
+	context->state[2] += c;
+	context->state[3] += d;
+	context->state[4] += e;
+	context->state[5] += f;
+	context->state[6] += g;
+	context->state[7] += h;
+
+	/* Clean up */
+	a = b = c = d = e = f = g = h = T1 = T2 = 0;
+}
+
+#endif /* SHA2_UNROLL_TRANSFORM */
+
+void SHA256_Update(SHA256_CTX* context, const sha2_byte *data, size_t len) {
+	unsigned int	freespace, usedspace;
+
+	if (len == 0) {
+		/* Calling with no data is valid - we do nothing */
+		return;
+	}
+
+	/* Sanity check: */
+	assert(context != (SHA256_CTX*)0 && data != (sha2_byte*)0);
+
+	usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH;
+	if (usedspace > 0) {
+		/* Calculate how much free space is available in the buffer */
+		freespace = SHA256_BLOCK_LENGTH - usedspace;
+
+		if (len >= freespace) {
+			/* Fill the buffer completely and process it */
+			MEMCPY_BCOPY(&context->buffer[usedspace], data, freespace);
+			context->bitcount += freespace << 3;
+			len -= freespace;
+			data += freespace;
+			SHA256_Transform(context, (sha2_word32*)context->buffer);
+		} else {
+			/* The buffer is not yet full */
+			MEMCPY_BCOPY(&context->buffer[usedspace], data, len);
+			context->bitcount += len << 3;
+			/* Clean up: */
+			usedspace = freespace = 0;
+			return;
+		}
+	}
+	while (len >= SHA256_BLOCK_LENGTH) {
+		/* Process as many complete blocks as we can */
+		SHA256_Transform(context, (sha2_word32*)data);
+		context->bitcount += SHA256_BLOCK_LENGTH << 3;
+		len -= SHA256_BLOCK_LENGTH;
+		data += SHA256_BLOCK_LENGTH;
+	}
+	if (len > 0) {
+		/* There's left-overs, so save 'em */
+		MEMCPY_BCOPY(context->buffer, data, len);
+		context->bitcount += len << 3;
+	}
+	/* Clean up: */
+	usedspace = freespace = 0;
+}
+
+void SHA256_Final(sha2_byte digest[], SHA256_CTX* context) {
+	sha2_word32	*d = (sha2_word32*)digest;
+	unsigned int	usedspace;
+
+	/* Sanity check: */
+	assert(context != (SHA256_CTX*)0);
+
+	/* If no digest buffer is passed, we don't bother doing this: */
+	if (digest != (sha2_byte*)0) {
+		usedspace = (context->bitcount >> 3) % SHA256_BLOCK_LENGTH;
+#if BYTE_ORDER == LITTLE_ENDIAN
+		/* Convert FROM host byte order */
+		REVERSE64(context->bitcount,context->bitcount);
+#endif
+		if (usedspace > 0) {
+			/* Begin padding with a 1 bit: */
+			context->buffer[usedspace++] = 0x80;
+
+			if (usedspace <= SHA256_SHORT_BLOCK_LENGTH) {
+				/* Set-up for the last transform: */
+				MEMSET_BZERO(&context->buffer[usedspace], SHA256_SHORT_BLOCK_LENGTH - usedspace);
+			} else {
+				if (usedspace < SHA256_BLOCK_LENGTH) {
+					MEMSET_BZERO(&context->buffer[usedspace], SHA256_BLOCK_LENGTH - usedspace);
+				}
+				/* Do second-to-last transform: */
+				SHA256_Transform(context, (sha2_word32*)context->buffer);
+
+				/* And set-up for the last transform: */
+				MEMSET_BZERO(context->buffer, SHA256_SHORT_BLOCK_LENGTH);
+			}
+		} else {
+			/* Set-up for the last transform: */
+			MEMSET_BZERO(context->buffer, SHA256_SHORT_BLOCK_LENGTH);
+
+			/* Begin padding with a 1 bit: */
+			*context->buffer = 0x80;
+		}
+		/* Set the bit count: */
+		union {
+			sha2_byte* c;
+			sha2_word64* l;
+		} bitcount;
+		bitcount.c = &context->buffer[SHA256_SHORT_BLOCK_LENGTH];
+		*(bitcount.l) = context->bitcount;
+
+		/* Final transform: */
+		SHA256_Transform(context, (sha2_word32*)context->buffer);
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+		{
+			/* Convert TO host byte order */
+			int	j;
+			for (j = 0; j < 8; j++) {
+				REVERSE32(context->state[j],context->state[j]);
+				*d++ = context->state[j];
+			}
+		}
+#else
+		MEMCPY_BCOPY(d, context->state, SHA256_DIGEST_LENGTH);
+#endif
+	}
+
+	/* Clean up state data: */
+	MEMSET_BZERO(context, sizeof(context));
+	usedspace = 0;
+}
+
+char *SHA256_End(SHA256_CTX* context, char buffer[]) {
+	sha2_byte	digest[SHA256_DIGEST_LENGTH], *d = digest;
+	int		i;
+
+	/* Sanity check: */
+	assert(context != (SHA256_CTX*)0);
+
+	if (buffer != (char*)0) {
+		SHA256_Final(digest, context);
+
+		for (i = 0; i < SHA256_DIGEST_LENGTH; i++) {
+			*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
+			*buffer++ = sha2_hex_digits[*d & 0x0f];
+			d++;
+		}
+		*buffer = (char)0;
+	} else {
+		MEMSET_BZERO(context, sizeof(context));
+	}
+	MEMSET_BZERO(digest, SHA256_DIGEST_LENGTH);
+	return buffer;
+}
+
+char* SHA256_Data(const sha2_byte* data, size_t len, char digest[SHA256_DIGEST_STRING_LENGTH]) {
+	SHA256_CTX	context;
+
+	SHA256_Init(&context);
+	SHA256_Update(&context, data, len);
+	return SHA256_End(&context, digest);
+}
+
+
+/*** SHA-512: *********************************************************/
+void SHA512_Init(SHA512_CTX* context) {
+	if (context == (SHA512_CTX*)0) {
+		return;
+	}
+	MEMCPY_BCOPY(context->state, sha512_initial_hash_value, SHA512_DIGEST_LENGTH);
+	MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH);
+	context->bitcount[0] = context->bitcount[1] =  0;
+}
+
+#ifdef SHA2_UNROLL_TRANSFORM
+
+/* Unrolled SHA-512 round macros: */
+#if BYTE_ORDER == LITTLE_ENDIAN
+
+#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h)	\
+	REVERSE64(*data++, W512[j]); \
+	T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
+             K512[j] + W512[j]; \
+	(d) += T1, \
+	(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)), \
+	j++
+
+
+#else /* BYTE_ORDER == LITTLE_ENDIAN */
+
+#define ROUND512_0_TO_15(a,b,c,d,e,f,g,h)	\
+	T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + \
+             K512[j] + (W512[j] = *data++); \
+	(d) += T1; \
+	(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
+	j++
+
+#endif /* BYTE_ORDER == LITTLE_ENDIAN */
+
+#define ROUND512(a,b,c,d,e,f,g,h)	\
+	s0 = W512[(j+1)&0x0f]; \
+	s0 = sigma0_512(s0); \
+	s1 = W512[(j+14)&0x0f]; \
+	s1 = sigma1_512(s1); \
+	T1 = (h) + Sigma1_512(e) + Ch((e), (f), (g)) + K512[j] + \
+             (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0); \
+	(d) += T1; \
+	(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
+	j++
+
+static void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
+	sha2_word64	a, b, c, d, e, f, g, h, s0, s1;
+	sha2_word64	T1, *W512 = (sha2_word64*)context->buffer;
+	int		j;
+
+	/* Initialize registers with the prev. intermediate value */
+	a = context->state[0];
+	b = context->state[1];
+	c = context->state[2];
+	d = context->state[3];
+	e = context->state[4];
+	f = context->state[5];
+	g = context->state[6];
+	h = context->state[7];
+
+	j = 0;
+	do {
+		ROUND512_0_TO_15(a,b,c,d,e,f,g,h);
+		ROUND512_0_TO_15(h,a,b,c,d,e,f,g);
+		ROUND512_0_TO_15(g,h,a,b,c,d,e,f);
+		ROUND512_0_TO_15(f,g,h,a,b,c,d,e);
+		ROUND512_0_TO_15(e,f,g,h,a,b,c,d);
+		ROUND512_0_TO_15(d,e,f,g,h,a,b,c);
+		ROUND512_0_TO_15(c,d,e,f,g,h,a,b);
+		ROUND512_0_TO_15(b,c,d,e,f,g,h,a);
+	} while (j < 16);
+
+	/* Now for the remaining rounds up to 79: */
+	do {
+		ROUND512(a,b,c,d,e,f,g,h);
+		ROUND512(h,a,b,c,d,e,f,g);
+		ROUND512(g,h,a,b,c,d,e,f);
+		ROUND512(f,g,h,a,b,c,d,e);
+		ROUND512(e,f,g,h,a,b,c,d);
+		ROUND512(d,e,f,g,h,a,b,c);
+		ROUND512(c,d,e,f,g,h,a,b);
+		ROUND512(b,c,d,e,f,g,h,a);
+	} while (j < 80);
+
+	/* Compute the current intermediate hash value */
+	context->state[0] += a;
+	context->state[1] += b;
+	context->state[2] += c;
+	context->state[3] += d;
+	context->state[4] += e;
+	context->state[5] += f;
+	context->state[6] += g;
+	context->state[7] += h;
+
+	/* Clean up */
+	a = b = c = d = e = f = g = h = T1 = 0;
+}
+
+#else /* SHA2_UNROLL_TRANSFORM */
+
+static void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
+	sha2_word64	a, b, c, d, e, f, g, h, s0, s1;
+	sha2_word64	T1, T2, *W512 = (sha2_word64*)context->buffer;
+	int		j;
+
+	/* Initialize registers with the prev. intermediate value */
+	a = context->state[0];
+	b = context->state[1];
+	c = context->state[2];
+	d = context->state[3];
+	e = context->state[4];
+	f = context->state[5];
+	g = context->state[6];
+	h = context->state[7];
+
+	j = 0;
+	do {
+#if BYTE_ORDER == LITTLE_ENDIAN
+		/* Convert TO host byte order */
+		REVERSE64(*data++, W512[j]);
+		/* Apply the SHA-512 compression function to update a..h */
+		T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j];
+#else /* BYTE_ORDER == LITTLE_ENDIAN */
+		/* Apply the SHA-512 compression function to update a..h with copy */
+		T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + (W512[j] = *data++);
+#endif /* BYTE_ORDER == LITTLE_ENDIAN */
+		T2 = Sigma0_512(a) + Maj(a, b, c);
+		h = g;
+		g = f;
+		f = e;
+		e = d + T1;
+		d = c;
+		c = b;
+		b = a;
+		a = T1 + T2;
+
+		j++;
+	} while (j < 16);
+
+	do {
+		/* Part of the message block expansion: */
+		s0 = W512[(j+1)&0x0f];
+		s0 = sigma0_512(s0);
+		s1 = W512[(j+14)&0x0f];
+		s1 =  sigma1_512(s1);
+
+		/* Apply the SHA-512 compression function to update a..h */
+		T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] +
+		     (W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0);
+		T2 = Sigma0_512(a) + Maj(a, b, c);
+		h = g;
+		g = f;
+		f = e;
+		e = d + T1;
+		d = c;
+		c = b;
+		b = a;
+		a = T1 + T2;
+
+		j++;
+	} while (j < 80);
+
+	/* Compute the current intermediate hash value */
+	context->state[0] += a;
+	context->state[1] += b;
+	context->state[2] += c;
+	context->state[3] += d;
+	context->state[4] += e;
+	context->state[5] += f;
+	context->state[6] += g;
+	context->state[7] += h;
+
+	/* Clean up */
+	a = b = c = d = e = f = g = h = T1 = T2 = 0;
+}
+
+#endif /* SHA2_UNROLL_TRANSFORM */
+
+void SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len) {
+	unsigned int	freespace, usedspace;
+
+	if (len == 0) {
+		/* Calling with no data is valid - we do nothing */
+		return;
+	}
+
+	/* Sanity check: */
+	assert(context != (SHA512_CTX*)0 && data != (sha2_byte*)0);
+
+	usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
+	if (usedspace > 0) {
+		/* Calculate how much free space is available in the buffer */
+		freespace = SHA512_BLOCK_LENGTH - usedspace;
+
+		if (len >= freespace) {
+			/* Fill the buffer completely and process it */
+			MEMCPY_BCOPY(&context->buffer[usedspace], data, freespace);
+			ADDINC128(context->bitcount, freespace << 3);
+			len -= freespace;
+			data += freespace;
+			SHA512_Transform(context, (sha2_word64*)context->buffer);
+		} else {
+			/* The buffer is not yet full */
+			MEMCPY_BCOPY(&context->buffer[usedspace], data, len);
+			ADDINC128(context->bitcount, len << 3);
+			/* Clean up: */
+			usedspace = freespace = 0;
+			return;
+		}
+	}
+	while (len >= SHA512_BLOCK_LENGTH) {
+		/* Process as many complete blocks as we can */
+		SHA512_Transform(context, (sha2_word64*)data);
+		ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3);
+		len -= SHA512_BLOCK_LENGTH;
+		data += SHA512_BLOCK_LENGTH;
+	}
+	if (len > 0) {
+		/* There's left-overs, so save 'em */
+		MEMCPY_BCOPY(context->buffer, data, len);
+		ADDINC128(context->bitcount, len << 3);
+	}
+	/* Clean up: */
+	usedspace = freespace = 0;
+}
+
+static void SHA512_Last(SHA512_CTX* context) {
+	unsigned int	usedspace;
+
+	usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
+#if BYTE_ORDER == LITTLE_ENDIAN
+	/* Convert FROM host byte order */
+	REVERSE64(context->bitcount[0],context->bitcount[0]);
+	REVERSE64(context->bitcount[1],context->bitcount[1]);
+#endif
+	if (usedspace > 0) {
+		/* Begin padding with a 1 bit: */
+		context->buffer[usedspace++] = 0x80;
+
+		if (usedspace <= SHA512_SHORT_BLOCK_LENGTH) {
+			/* Set-up for the last transform: */
+			MEMSET_BZERO(&context->buffer[usedspace], SHA512_SHORT_BLOCK_LENGTH - usedspace);
+		} else {
+			if (usedspace < SHA512_BLOCK_LENGTH) {
+				MEMSET_BZERO(&context->buffer[usedspace], SHA512_BLOCK_LENGTH - usedspace);
+			}
+			/* Do second-to-last transform: */
+			SHA512_Transform(context, (sha2_word64*)context->buffer);
+
+			/* And set-up for the last transform: */
+			MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH - 2);
+		}
+	} else {
+		/* Prepare for final transform: */
+		MEMSET_BZERO(context->buffer, SHA512_SHORT_BLOCK_LENGTH);
+
+		/* Begin padding with a 1 bit: */
+		*context->buffer = 0x80;
+	}
+	/* Store the length of input data (in bits): */
+	union {
+		sha2_byte* c;
+		sha2_word64* l;
+	} bitcount;
+	bitcount.c = &context->buffer[SHA512_SHORT_BLOCK_LENGTH];
+	bitcount.l[0] = context->bitcount[1];
+	bitcount.l[1] = context->bitcount[0];
+
+	/* Final transform: */
+	SHA512_Transform(context, (sha2_word64*)context->buffer);
+}
+
+void SHA512_Final(sha2_byte digest[], SHA512_CTX* context) {
+	sha2_word64	*d = (sha2_word64*)digest;
+
+	/* Sanity check: */
+	assert(context != (SHA512_CTX*)0);
+
+	/* If no digest buffer is passed, we don't bother doing this: */
+	if (digest != (sha2_byte*)0) {
+		SHA512_Last(context);
+
+		/* Save the hash data for output: */
+#if BYTE_ORDER == LITTLE_ENDIAN
+		{
+			/* Convert TO host byte order */
+			int	j;
+			for (j = 0; j < 8; j++) {
+				REVERSE64(context->state[j],context->state[j]);
+				*d++ = context->state[j];
+			}
+		}
+#else
+		MEMCPY_BCOPY(d, context->state, SHA512_DIGEST_LENGTH);
+#endif
+	}
+
+	/* Zero out state data */
+	MEMSET_BZERO(context, sizeof(context));
+}
+
+char *SHA512_End(SHA512_CTX* context, char buffer[]) {
+	sha2_byte	digest[SHA512_DIGEST_LENGTH], *d = digest;
+	int		i;
+
+	/* Sanity check: */
+	assert(context != (SHA512_CTX*)0);
+
+	if (buffer != (char*)0) {
+		SHA512_Final(digest, context);
+
+		for (i = 0; i < SHA512_DIGEST_LENGTH; i++) {
+			*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
+			*buffer++ = sha2_hex_digits[*d & 0x0f];
+			d++;
+		}
+		*buffer = (char)0;
+	} else {
+		MEMSET_BZERO(context, sizeof(context));
+	}
+	MEMSET_BZERO(digest, SHA512_DIGEST_LENGTH);
+	return buffer;
+}
+
+char* SHA512_Data(const sha2_byte* data, size_t len, char digest[SHA512_DIGEST_STRING_LENGTH]) {
+	SHA512_CTX	context;
+
+	SHA512_Init(&context);
+	SHA512_Update(&context, data, len);
+	return SHA512_End(&context, digest);
+}
+
+
+/*** SHA-384: *********************************************************/
+void SHA384_Init(SHA384_CTX* context) {
+	if (context == (SHA384_CTX*)0) {
+		return;
+	}
+	MEMCPY_BCOPY(context->state, sha384_initial_hash_value, SHA512_DIGEST_LENGTH);
+	MEMSET_BZERO(context->buffer, SHA384_BLOCK_LENGTH);
+	context->bitcount[0] = context->bitcount[1] = 0;
+}
+
+void SHA384_Update(SHA384_CTX* context, const sha2_byte* data, size_t len) {
+	SHA512_Update((SHA512_CTX*)context, data, len);
+}
+
+void SHA384_Final(sha2_byte digest[], SHA384_CTX* context) {
+	sha2_word64	*d = (sha2_word64*)digest;
+
+	/* Sanity check: */
+	assert(context != (SHA384_CTX*)0);
+
+	/* If no digest buffer is passed, we don't bother doing this: */
+	if (digest != (sha2_byte*)0) {
+		SHA512_Last((SHA512_CTX*)context);
+
+		/* Save the hash data for output: */
+#if BYTE_ORDER == LITTLE_ENDIAN
+		{
+			/* Convert TO host byte order */
+			int	j;
+			for (j = 0; j < 6; j++) {
+				REVERSE64(context->state[j],context->state[j]);
+				*d++ = context->state[j];
+			}
+		}
+#else
+		MEMCPY_BCOPY(d, context->state, SHA384_DIGEST_LENGTH);
+#endif
+	}
+
+	/* Zero out state data */
+	MEMSET_BZERO(context, sizeof(context));
+}
+
+char *SHA384_End(SHA384_CTX* context, char buffer[]) {
+	sha2_byte	digest[SHA384_DIGEST_LENGTH], *d = digest;
+	int		i;
+
+	/* Sanity check: */
+	assert(context != (SHA384_CTX*)0);
+
+	if (buffer != (char*)0) {
+		SHA384_Final(digest, context);
+
+		for (i = 0; i < SHA384_DIGEST_LENGTH; i++) {
+			*buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4];
+			*buffer++ = sha2_hex_digits[*d & 0x0f];
+			d++;
+		}
+		*buffer = (char)0;
+	} else {
+		MEMSET_BZERO(context, sizeof(context));
+	}
+	MEMSET_BZERO(digest, SHA384_DIGEST_LENGTH);
+	return buffer;
+}
+
+char* SHA384_Data(const sha2_byte* data, size_t len, char digest[SHA384_DIGEST_STRING_LENGTH]) {
+	SHA384_CTX	context;
+
+	SHA384_Init(&context);
+	SHA384_Update(&context, data, len);
+	return SHA384_End(&context, digest);
+}
+
diff --git a/apt-pkg/contrib/sha2_internal.h b/apt-pkg/contrib/sha2_internal.h
new file mode 100644
index 000000000..d9d429c92
--- /dev/null
+++ b/apt-pkg/contrib/sha2_internal.h
@@ -0,0 +1,188 @@
+/*
+ * FILE:	sha2.h
+ * AUTHOR:	Aaron D. Gifford - http://www.aarongifford.com/
+ * 
+ * Copyright (c) 2000-2001, Aaron D. Gifford
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
+ */
+
+#ifndef __SHA2_H__
+#define __SHA2_H__
+
+/*
+ * Import u_intXX_t size_t type definitions from system headers.  You
+ * may need to change this, or define these things yourself in this
+ * file.
+ */
+#include <sys/types.h>
+
+#ifdef SHA2_USE_INTTYPES_H
+
+#include <inttypes.h>
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+
+/*** SHA-256/384/512 Various Length Definitions ***********************/
+#define SHA256_BLOCK_LENGTH		64
+#define SHA256_DIGEST_LENGTH		32
+#define SHA256_DIGEST_STRING_LENGTH	(SHA256_DIGEST_LENGTH * 2 + 1)
+#define SHA384_BLOCK_LENGTH		128
+#define SHA384_DIGEST_LENGTH		48
+#define SHA384_DIGEST_STRING_LENGTH	(SHA384_DIGEST_LENGTH * 2 + 1)
+#define SHA512_BLOCK_LENGTH		128
+#define SHA512_DIGEST_LENGTH		64
+#define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
+
+
+/*** SHA-256/384/512 Context Structures *******************************/
+/* NOTE: If your architecture does not define either u_intXX_t types or
+ * uintXX_t (from inttypes.h), you may need to define things by hand
+ * for your system:
+ */
+#if 0
+typedef unsigned char u_int8_t;		/* 1-byte  (8-bits)  */
+typedef unsigned int u_int32_t;		/* 4-bytes (32-bits) */
+typedef unsigned long long u_int64_t;	/* 8-bytes (64-bits) */
+#endif
+/*
+ * Most BSD systems already define u_intXX_t types, as does Linux.
+ * Some systems, however, like Compaq's Tru64 Unix instead can use
+ * uintXX_t types defined by very recent ANSI C standards and included
+ * in the file:
+ *
+ *   #include <inttypes.h>
+ *
+ * If you choose to use <inttypes.h> then please define: 
+ *
+ *   #define SHA2_USE_INTTYPES_H
+ *
+ * Or on the command line during compile:
+ *
+ *   cc -DSHA2_USE_INTTYPES_H ...
+ */
+#ifdef SHA2_USE_INTTYPES_H
+
+typedef struct _SHA256_CTX {
+	uint32_t	state[8];
+	uint64_t	bitcount;
+	uint8_t	buffer[SHA256_BLOCK_LENGTH];
+} SHA256_CTX;
+typedef struct _SHA512_CTX {
+	uint64_t	state[8];
+	uint64_t	bitcount[2];
+	uint8_t	buffer[SHA512_BLOCK_LENGTH];
+} SHA512_CTX;
+
+#else /* SHA2_USE_INTTYPES_H */
+
+typedef struct _SHA256_CTX {
+	u_int32_t	state[8];
+	u_int64_t	bitcount;
+	u_int8_t	buffer[SHA256_BLOCK_LENGTH];
+} SHA256_CTX;
+typedef struct _SHA512_CTX {
+	u_int64_t	state[8];
+	u_int64_t	bitcount[2];
+	u_int8_t	buffer[SHA512_BLOCK_LENGTH];
+} SHA512_CTX;
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+typedef SHA512_CTX SHA384_CTX;
+
+
+/*** SHA-256/384/512 Function Prototypes ******************************/
+#ifndef NOPROTO
+#ifdef SHA2_USE_INTTYPES_H
+
+void SHA256_Init(SHA256_CTX *);
+void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
+void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
+char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA384_CTX*);
+void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
+void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
+char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA512_CTX*);
+void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
+void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
+char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#else /* SHA2_USE_INTTYPES_H */
+
+void SHA256_Init(SHA256_CTX *);
+void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
+void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
+char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
+char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
+
+void SHA384_Init(SHA384_CTX*);
+void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
+void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
+char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
+char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
+
+void SHA512_Init(SHA512_CTX*);
+void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
+void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
+char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
+char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
+
+#endif /* SHA2_USE_INTTYPES_H */
+
+#else /* NOPROTO */
+
+void SHA256_Init();
+void SHA256_Update();
+void SHA256_Final();
+char* SHA256_End();
+char* SHA256_Data();
+
+void SHA384_Init();
+void SHA384_Update();
+void SHA384_Final();
+char* SHA384_End();
+char* SHA384_Data();
+
+void SHA512_Init();
+void SHA512_Update();
+void SHA512_Final();
+char* SHA512_End();
+char* SHA512_Data();
+
+#endif /* NOPROTO */
+
+#endif /* __SHA2_H__ */
+
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 8dd05b9c0..99efa8d98 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -15,12 +15,12 @@
    ##################################################################### */
 									/*}}}*/
 // Includes								/*{{{*/
+#include <config.h>
+
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 
-#include <apti18n.h>
-    
 #include <ctype.h>
 #include <string.h>
 #include <stdio.h>
@@ -31,7 +31,7 @@
 #include <stdarg.h>
 #include <iconv.h>
 
-#include "config.h"
+#include <apti18n.h>
 
 using namespace std;
 									/*}}}*/
@@ -910,17 +910,17 @@ bool StrToTime(const string &Val,time_t &Result)
 
    // Handle RFC 1123 time
    Month[0] = 0;
-   if (sscanf(I," %d %3s %d %d:%d:%d GMT",&Tm.tm_mday,Month,&Tm.tm_year,
+   if (sscanf(I," %2d %3s %4d %2d:%2d:%2d GMT",&Tm.tm_mday,Month,&Tm.tm_year,
 	      &Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec) != 6)
    {
       // Handle RFC 1036 time
-      if (sscanf(I," %d-%3s-%d %d:%d:%d GMT",&Tm.tm_mday,Month,
+      if (sscanf(I," %2d-%3s-%3d %2d:%2d:%2d GMT",&Tm.tm_mday,Month,
 		 &Tm.tm_year,&Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec) == 6)
 	 Tm.tm_year += 1900;
       else
       {
 	 // asctime format
-	 if (sscanf(I," %3s %d %d:%d:%d %d",Month,&Tm.tm_mday,
+	 if (sscanf(I," %3s %2d %2d:%2d:%2d %4d",Month,&Tm.tm_mday,
 		    &Tm.tm_hour,&Tm.tm_min,&Tm.tm_sec,&Tm.tm_year) != 6)
 	 {
 	    // 'ftp' time
@@ -969,6 +969,34 @@ bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base)
    return true;
 }
 									/*}}}*/
+// StrToNum - Convert a fixed length string to a number			/*{{{*/
+// ---------------------------------------------------------------------
+/* This is used in decoding the crazy fixed length string headers in 
+   tar and ar files. */
+bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base)
+{
+   char S[30];
+   if (Len >= sizeof(S))
+      return false;
+   memcpy(S,Str,Len);
+   S[Len] = 0;
+   
+   // All spaces is a zero
+   Res = 0;
+   unsigned I;
+   for (I = 0; S[I] == ' '; I++);
+   if (S[I] == 0)
+      return true;
+   
+   char *End;
+   Res = strtoull(S,&End,Base);
+   if (End == S)
+      return false;
+   
+   return true;
+}
+									/*}}}*/
+
 // Base256ToNum - Convert a fixed length binary to a number             /*{{{*/
 // ---------------------------------------------------------------------
 /* This is used in decoding the 256bit encoded fixed length fields in
diff --git a/apt-pkg/contrib/strutl.h b/apt-pkg/contrib/strutl.h
index fba85cf94..337139d5d 100644
--- a/apt-pkg/contrib/strutl.h
+++ b/apt-pkg/contrib/strutl.h
@@ -27,59 +27,62 @@
 
 #include "macros.h"
 
+#ifndef APT_8_CLEANER_HEADERS
 using std::string;
 using std::vector;
 using std::ostream;
+#endif
 
-bool UTF8ToCodeset(const char *codeset, const string &orig, string *dest);
+bool UTF8ToCodeset(const char *codeset, const std::string &orig, std::string *dest);
 char *_strstrip(char *String);
 char *_strtabexpand(char *String,size_t Len);
-bool ParseQuoteWord(const char *&String,string &Res);
-bool ParseCWord(const char *&String,string &Res);
-string QuoteString(const string &Str,const char *Bad);
-string DeQuoteString(const string &Str);
-string DeQuoteString(string::const_iterator const &begin, string::const_iterator const &end);
+bool ParseQuoteWord(const char *&String,std::string &Res);
+bool ParseCWord(const char *&String,std::string &Res);
+std::string QuoteString(const std::string &Str,const char *Bad);
+std::string DeQuoteString(const std::string &Str);
+std::string DeQuoteString(std::string::const_iterator const &begin, std::string::const_iterator const &end);
 
 // unescape (\0XX and \xXX) from a string
-string DeEscapeString(const string &input);
-
-string SizeToStr(double Bytes);
-string TimeToStr(unsigned long Sec);
-string Base64Encode(const string &Str);
-string OutputInDepth(const unsigned long Depth, const char* Separator="  ");
-string URItoFileName(const string &URI);
-string TimeRFC1123(time_t Date);
+std::string DeEscapeString(const std::string &input);
+
+std::string SizeToStr(double Bytes);
+std::string TimeToStr(unsigned long Sec);
+std::string Base64Encode(const std::string &Str);
+std::string OutputInDepth(const unsigned long Depth, const char* Separator="  ");
+std::string URItoFileName(const std::string &URI);
+std::string TimeRFC1123(time_t Date);
 bool RFC1123StrToTime(const char* const str,time_t &time) __must_check;
 bool FTPMDTMStrToTime(const char* const str,time_t &time) __must_check;
-__deprecated bool StrToTime(const string &Val,time_t &Result);
-string LookupTag(const string &Message,const char *Tag,const char *Default = 0);
-int StringToBool(const string &Text,int Default = -1);
-bool ReadMessages(int Fd, vector<string> &List);
+__deprecated bool StrToTime(const std::string &Val,time_t &Result);
+std::string LookupTag(const std::string &Message,const char *Tag,const char *Default = 0);
+int StringToBool(const std::string &Text,int Default = -1);
+bool ReadMessages(int Fd, std::vector<std::string> &List);
 bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base = 0);
+bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base = 0);
 bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len);
-bool Hex2Num(const string &Str,unsigned char *Num,unsigned int Length);
+bool Hex2Num(const std::string &Str,unsigned char *Num,unsigned int Length);
 bool TokSplitString(char Tok,char *Input,char **List,
 		    unsigned long ListMax);
-vector<string> VectorizeString(string const &haystack, char const &split) __attrib_const;
-void ioprintf(ostream &out,const char *format,...) __like_printf(2);
-void strprintf(string &out,const char *format,...) __like_printf(2);
+std::vector<std::string> VectorizeString(std::string const &haystack, char const &split) __attrib_const;
+void ioprintf(std::ostream &out,const char *format,...) __like_printf(2);
+void strprintf(std::string &out,const char *format,...) __like_printf(2);
 char *safe_snprintf(char *Buffer,char *End,const char *Format,...) __like_printf(3);
-bool CheckDomainList(const string &Host, const string &List);
+bool CheckDomainList(const std::string &Host, const std::string &List);
 int tolower_ascii(int const c) __attrib_const __hot;
-string StripEpoch(const string &VerStr);
+std::string StripEpoch(const std::string &VerStr);
 
 #define APT_MKSTRCMP(name,func) \
 inline int name(const char *A,const char *B) {return func(A,A+strlen(A),B,B+strlen(B));}; \
 inline int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));}; \
-inline int name(const string& A,const char *B) {return func(A.c_str(),A.c_str()+A.length(),B,B+strlen(B));}; \
-inline int name(const string& A,const string& B) {return func(A.c_str(),A.c_str()+A.length(),B.c_str(),B.c_str()+B.length());}; \
-inline int name(const string& A,const char *B,const char *BEnd) {return func(A.c_str(),A.c_str()+A.length(),B,BEnd);};
+inline int name(const std::string& A,const char *B) {return func(A.c_str(),A.c_str()+A.length(),B,B+strlen(B));}; \
+inline int name(const std::string& A,const std::string& B) {return func(A.c_str(),A.c_str()+A.length(),B.c_str(),B.c_str()+B.length());}; \
+inline int name(const std::string& A,const char *B,const char *BEnd) {return func(A.c_str(),A.c_str()+A.length(),B,BEnd);};
 
 #define APT_MKSTRCMP2(name,func) \
 inline int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));}; \
-inline int name(const string& A,const char *B) {return func(A.begin(),A.end(),B,B+strlen(B));}; \
-inline int name(const string& A,const string& B) {return func(A.begin(),A.end(),B.begin(),B.end());}; \
-inline int name(const string& A,const char *B,const char *BEnd) {return func(A.begin(),A.end(),B,BEnd);};
+inline int name(const std::string& A,const char *B) {return func(A.begin(),A.end(),B,B+strlen(B));}; \
+inline int name(const std::string& A,const std::string& B) {return func(A.begin(),A.end(),B.begin(),B.end());}; \
+inline int name(const std::string& A,const char *B,const char *BEnd) {return func(A.begin(),A.end(),B,BEnd);};
 
 int stringcmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
 int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
@@ -88,17 +91,17 @@ int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd)
    case the definition of string::const_iterator is not the same as
    const char * and we need these extra functions */
 #if __GNUC__ >= 3
-int stringcmp(string::const_iterator A,string::const_iterator AEnd,
+int stringcmp(std::string::const_iterator A,std::string::const_iterator AEnd,
 	      const char *B,const char *BEnd);
-int stringcmp(string::const_iterator A,string::const_iterator AEnd,
-	      string::const_iterator B,string::const_iterator BEnd);
-int stringcasecmp(string::const_iterator A,string::const_iterator AEnd,
+int stringcmp(std::string::const_iterator A,std::string::const_iterator AEnd,
+	      std::string::const_iterator B,std::string::const_iterator BEnd);
+int stringcasecmp(std::string::const_iterator A,std::string::const_iterator AEnd,
 		  const char *B,const char *BEnd);
-int stringcasecmp(string::const_iterator A,string::const_iterator AEnd,
-                  string::const_iterator B,string::const_iterator BEnd);
+int stringcasecmp(std::string::const_iterator A,std::string::const_iterator AEnd,
+                  std::string::const_iterator B,std::string::const_iterator BEnd);
 
-inline int stringcmp(string::const_iterator A,string::const_iterator Aend,const char *B) {return stringcmp(A,Aend,B,B+strlen(B));};
-inline int stringcasecmp(string::const_iterator A,string::const_iterator Aend,const char *B) {return stringcasecmp(A,Aend,B,B+strlen(B));};
+inline int stringcmp(std::string::const_iterator A,std::string::const_iterator Aend,const char *B) {return stringcmp(A,Aend,B,B+strlen(B));};
+inline int stringcasecmp(std::string::const_iterator A,std::string::const_iterator Aend,const char *B) {return stringcasecmp(A,Aend,B,B+strlen(B));};
 #endif
 
 APT_MKSTRCMP2(stringcmp,stringcmp);
@@ -108,34 +111,34 @@ inline const char *DeNull(const char *s) {return (s == 0?"(null)":s);};
 
 class URI
 {
-   void CopyFrom(const string &From);
+   void CopyFrom(const std::string &From);
 		 
    public:
    
-   string Access;
-   string User;
-   string Password;
-   string Host;
-   string Path;
+   std::string Access;
+   std::string User;
+   std::string Password;
+   std::string Host;
+   std::string Path;
    unsigned int Port;
    
-   operator string();
-   inline void operator =(const string &From) {CopyFrom(From);};
+   operator std::string();
+   inline void operator =(const std::string &From) {CopyFrom(From);};
    inline bool empty() {return Access.empty();};
-   static string SiteOnly(const string &URI);
-   static string NoUserPassword(const string &URI);
+   static std::string SiteOnly(const std::string &URI);
+   static std::string NoUserPassword(const std::string &URI);
    
-   URI(string Path) {CopyFrom(Path);};
+   URI(std::string Path) {CopyFrom(Path);};
    URI() : Port(0) {};
 };
 
 struct SubstVar
 {
    const char *Subst;
-   const string *Contents;
+   const std::string *Contents;
 };
-string SubstVar(string Str,const struct SubstVar *Vars);
-string SubstVar(const string &Str,const string &Subst,const string &Contents);
+std::string SubstVar(std::string Str,const struct SubstVar *Vars);
+std::string SubstVar(const std::string &Str,const std::string &Subst,const std::string &Contents);
 
 struct RxChoiceList
 {