* apt-inst/contrib/extracttar.cc:

  - fix fd leak for zero size files (thanks to Bill Broadley for
    reporting this bug)
* apt-pkg/acquire-item.cc:
  - remove zero size files on I-M-S hit
* methods/https.cc:
  - only send LastModified if we actually have one
  - send range request with if-range 
  - delete failed downloads
* apt-pkg/deb/dpkgpm.{cc,h}:
  - merged dpkg-log branch, this lets you specify a 
    Dir::Log::Terminal file to log dpkg output to
    (ABI break)
* merged apt--sha256 branch to fully support the new
  sha256 checksums in the Packages and Release files
  (ABI break)
* Applied patch from Aurelien Jarno <aurel32@debian.org> to fix wrong
  directory downloading on non-linux architectures (closes: #435597)
* Applied patch from Guillem Jover <guillem@debian.org> to use
* Applied patch from Guillem Jover <guillem@debian.org> to add
  support to add lzma support (closes: #408201)
* methods/makefile:
  - install lzma symlink method (for full lzma support)
* debian/control:
  - suggest "lzma"
* Simplified HttpMethod::Fetch on http.cc removing Tail variable;
* Fix pipeline handling on http.cc (closes: #413324)
* Fix building to properly support binNMUs. Thanks to Daniel Schepler
  <schepler@math.unipd.it> by the patch (closes: #359634)
* Fix example for Install-{Recommends,Suggests} options on
  configure-index example file. Thanks to Peter Eisentraut
  <peter_e@gmx.net> by the patch (closes: #432223)
* fixed compile errors with g++ 4.3 (thanks to 
  Daniel Burrows, closes: #429378)
* fixes in the auto-mark code (thanks to Daniel
  Burrows)
* fix FTFBFS by changing build-depends to
  libcurl4-gnutls-dev (closes: #428363)
* cmdline/apt-get.cc:
  - fix InstallTask code when a pkgRecord ends 
    with a single '\n' (thanks to Soren Hansen for reporting)
* merged from Christian Perrier:
      * vi.po: completed to 532t, again. Closes: #429899
      * gl.po: completed to 532t. Closes: #429506
      * vi.po: completed to 532t. Closes: #428672
      * Update all PO and the POT. Gives 514t14f4u for formerly
        complete translations
      * fr.po: completed to 532t
      * ku.po, uk.po, LINGUAS: reintegrate those translations
        which disappeared from the BZR repositories

2 files changed, 114 insertions, 0 deletions

diff --git a/apt-pkg/contrib/hashes.cc b/apt-pkg/contrib/hashes.cc
index b725e9418..fcc2f887c 100644
--- a/apt-pkg/contrib/hashes.cc
+++ b/apt-pkg/contrib/hashes.cc
@@ -12,11 +12,95 @@
 									/*}}}*/
 // Include Files							/*{{{*/
 #include <apt-pkg/hashes.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/configuration.h>
     
 #include <unistd.h>    
 #include <system.h>    
+#include <string>
+#include <iostream>
 									/*}}}*/
 
+const char* HashString::_SupportedHashes[] = 
+{
+   "SHA256", "SHA1", "MD5Sum", NULL
+};
+
+HashString::HashString()
+{
+}
+
+HashString::HashString(string Type, string Hash) : Type(Type), Hash(Hash)
+{
+}
+
+HashString::HashString(string StringedHash)
+{
+   // legacy: md5sum without "MD5Sum:" prefix
+   if (StringedHash.find(":") == string::npos && StringedHash.size() == 32)
+   {
+      Type = "MD5Sum";
+      Hash = StringedHash;
+      return;
+   }
+   string::size_type pos = StringedHash.find(":");
+   Type = StringedHash.substr(0,pos);
+   Hash = StringedHash.substr(pos+1, StringedHash.size() - pos);
+
+   if(_config->FindB("Debug::Hashes",false) == true)
+      std::clog << "HashString(string): " << Type << " : " << Hash << std::endl;
+}
+
+
+bool HashString::VerifyFile(string filename) const
+{
+   FileFd fd;
+   MD5Summation MD5;
+   SHA1Summation SHA1;
+   SHA256Summation SHA256;
+   string fileHash;
+
+   FileFd Fd(filename, FileFd::ReadOnly);
+   if(Type == "MD5Sum") 
+   {
+      MD5.AddFD(Fd.Fd(), Fd.Size());
+      fileHash = (string)MD5.Result();
+   } 
+   else if (Type == "SHA1")
+   {
+      SHA1.AddFD(Fd.Fd(), Fd.Size());
+      fileHash = (string)SHA1.Result();
+   } 
+   else if (Type == "SHA256") 
+   {
+      SHA256.AddFD(Fd.Fd(), Fd.Size());
+      fileHash = (string)SHA256.Result();
+   }
+   Fd.Close();
+
+   if(_config->FindB("Debug::Hashes",false) == true)
+      std::clog << "HashString::VerifyFile: got: " << fileHash << " expected: " << toStr() << std::endl;
+
+   return (fileHash == Hash);
+}
+
+const char** HashString::SupportedHashes()
+{
+   return _SupportedHashes;
+}
+
+bool HashString::empty() const
+{
+   return (Type.empty() || Hash.empty());
+}
+
+
+string HashString::toStr() const
+{
+   return Type+string(":")+Hash;
+}
+
+
 // Hashes::AddFD - Add the contents of the FD				/*{{{*/
 // ---------------------------------------------------------------------
 /* */
diff --git a/apt-pkg/contrib/hashes.h b/apt-pkg/contrib/hashes.h
index b09ea9f6b..93e7b25d9 100644
--- a/apt-pkg/contrib/hashes.h
+++ b/apt-pkg/contrib/hashes.h
@@ -19,8 +19,38 @@
 #include <apt-pkg/sha256.h>
 
 #include <algorithm>
+#include <vector>
 
 using std::min;
+using std::vector;
+
+// helper class that contains hash function name
+// and hash
+class HashString
+{
+ protected:
+   string Type;
+   string Hash;
+   static const char * _SupportedHashes[10];
+
+ public:
+   HashString(string Type, string Hash);
+   HashString(string StringedHashString);  // init from str as "type:hash"
+   HashString();
+
+   // get hash type used
+   string HashType() { return Type; };
+
+   // verify the given filename against the currently loaded hash
+   bool VerifyFile(string filename) const;
+
+   // helper
+   string toStr() const;                    // convert to str as "type:hash"
+   bool empty() const;
+
+   // return the list of hashes we support
+   static const char** SupportedHashes();
+};
 
 class Hashes
 {