3 files changed, 7 insertions, 3 deletions
diff --git a/apt-pkg/contrib/md5.h b/apt-pkg/contrib/md5.h
index 9e20f7cef..9447e9956 100644
--- a/apt-pkg/contrib/md5.h
+++ b/apt-pkg/contrib/md5.h
@@ -58,7 +58,7 @@ class MD5SumValue
 
 class MD5Summation
 {
-   unsigned char Buf[4*4];
+   uint32_t Buf[4];
    unsigned char Bytes[2*4];
    unsigned char In[16*4];
    bool Done;
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc
index bc22fba67..e395e6cc7 100644
--- a/apt-pkg/contrib/mmap.cc
+++ b/apt-pkg/contrib/mmap.cc
@@ -155,9 +155,9 @@ DynamicMMap::DynamicMMap(FileFd &F,unsigned long Flags,unsigned long WorkSpace)
    unsigned long EndOfFile = Fd->Size();
    if (EndOfFile > WorkSpace)
       WorkSpace = EndOfFile;
-   else
+   else if(WorkSpace > 0)
    {
-      Fd->Seek(WorkSpace);
+      Fd->Seek(WorkSpace - 1);
       char C = 0;
       Fd->Write(&C,sizeof(C));
    }
diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc
index 8dfbf7aff..ea53a847e 100644
--- a/apt-pkg/deb/debmetaindex.cc
+++ b/apt-pkg/deb/debmetaindex.cc
@@ -173,6 +173,10 @@ bool debReleaseIndex::IsTrusted() const
    string VerifiedSigFile = _config->FindDir("Dir::State::lists") +
       URItoFileName(MetaIndexURI("Release")) + ".gpg";
    
+   if(_config->FindB("APT::Authentication::Trust-CDROM", false))
+      if(URI.substr(0,strlen("cdrom:")) == "cdrom:")
+	 return true;
+   
    if (FileExists(VerifiedSigFile))
       return true;
    return false;