Move CD-ROM handling backend into libapt-pkg

    - apt-cdrom.cc seperated into frontend (cmdline/apt-cdrom.cc and library
      apt-pkg/cdrom.{cc,h}) (Ubuntu #5668)

Patches applied:

 * michael.vogt@ubuntu.com--2005/apt--auth-cdrom--0--base-0
   tag of apt@packages.debian.org/apt--main--0--patch-51

 * michael.vogt@ubuntu.com--2005/apt--auth-cdrom--0--patch-1
   * added support for signed cdroms 

 * michael.vogt@ubuntu.com--2005/apt--auth-cdrom--0--patch-2
   * merged with apt--main, seperated cmdline/apt-cdrom.cc into a library (apt-pkg/cdrom.{cc,h})

 * michael.vogt@ubuntu.com--2005/apt--auth-cdrom--0--patch-3
   * cleaned up the cmdline/apt-cdrom.cc code

7 files changed, 1591 insertions, 4 deletions

diff --git a/apt-pkg/cdrom.cc b/apt-pkg/cdrom.cc
new file mode 100644
index 000000000..a91fc7181
--- /dev/null
+++ b/apt-pkg/cdrom.cc
@@ -0,0 +1,776 @@
+/*
+ */
+
+#ifdef __GNUG__
+#pragma implementation "apt-pkg/cdrom.h"
+#endif
+#include<apt-pkg/init.h>
+#include<apt-pkg/error.h>
+#include<apt-pkg/cdromutl.h>
+#include<apt-pkg/strutl.h>
+#include<apt-pkg/cdrom.h>
+#include<sstream>
+#include<fstream>
+#include<config.h>
+#include<apti18n.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdio.h>
+
+
+#include "indexcopy.h"
+
+using namespace std;
+
+// FindPackages - Find the package files on the CDROM			/*{{{*/
+// ---------------------------------------------------------------------
+/* We look over the cdrom for package files. This is a recursive
+   search that short circuits when it his a package file in the dir.
+   This speeds it up greatly as the majority of the size is in the
+   binary-* sub dirs. */
+bool pkgCdrom::FindPackages(string CD,vector<string> &List,
+			    vector<string> &SList, vector<string> &SigList,
+			    string &InfoDir, pkgCdromStatus *log,
+			    unsigned int Depth)
+{
+   static ino_t Inodes[9];
+
+   // if we have a look we "pulse" now
+   if(log)
+      log->Update();
+
+   if (Depth >= 7)
+      return true;
+
+   if (CD[CD.length()-1] != '/')
+      CD += '/';   
+
+   if (chdir(CD.c_str()) != 0)
+      return _error->Errno("chdir","Unable to change to %s",CD.c_str());
+
+   // Look for a .disk subdirectory
+   struct stat Buf;
+   if (stat(".disk",&Buf) == 0)
+   {
+      if (InfoDir.empty() == true)
+	 InfoDir = CD + ".disk/";
+   }
+
+   // Don't look into directories that have been marked to ingore.
+   if (stat(".aptignr",&Buf) == 0)
+      return true;
+
+
+   /* Check _first_ for a signature file as apt-cdrom assumes that all files
+      under a Packages/Source file are in control of that file and stops 
+      the scanning
+   */
+   if (stat("Release.gpg",&Buf) == 0)
+   {
+      SigList.push_back(CD);
+   }
+   /* Aha! We found some package files. We assume that everything under 
+      this dir is controlled by those package files so we don't look down
+      anymore */
+   if (stat("Packages",&Buf) == 0 || stat("Packages.gz",&Buf) == 0)
+   {
+      List.push_back(CD);
+      
+      // Continue down if thorough is given
+      if (_config->FindB("APT::CDROM::Thorough",false) == false)
+	 return true;
+   }
+   if (stat("Sources.gz",&Buf) == 0 || stat("Sources",&Buf) == 0)
+   {
+      SList.push_back(CD);
+      
+      // Continue down if thorough is given
+      if (_config->FindB("APT::CDROM::Thorough",false) == false)
+	 return true;
+   }
+   
+   DIR *D = opendir(".");
+   if (D == 0)
+      return _error->Errno("opendir","Unable to read %s",CD.c_str());
+   
+   // Run over the directory
+   for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
+   {
+      // Skip some files..
+      if (strcmp(Dir->d_name,".") == 0 ||
+	  strcmp(Dir->d_name,"..") == 0 ||
+	  //strcmp(Dir->d_name,"source") == 0 ||
+	  strcmp(Dir->d_name,".disk") == 0 ||
+	  strcmp(Dir->d_name,"experimental") == 0 ||
+	  strcmp(Dir->d_name,"binary-all") == 0 ||
+          strcmp(Dir->d_name,"debian-installer") == 0)
+	 continue;
+
+      // See if the name is a sub directory
+      struct stat Buf;
+      if (stat(Dir->d_name,&Buf) != 0)
+	 continue;      
+      
+      if (S_ISDIR(Buf.st_mode) == 0)
+	 continue;
+      
+      unsigned int I;
+      for (I = 0; I != Depth; I++)
+	 if (Inodes[I] == Buf.st_ino)
+	    break;
+      if (I != Depth)
+	 continue;
+      
+      // Store the inodes weve seen
+      Inodes[Depth] = Buf.st_ino;
+
+      // Descend
+      if (FindPackages(CD + Dir->d_name,List,SList,SigList,InfoDir,log,Depth+1) == false)
+	 break;
+
+      if (chdir(CD.c_str()) != 0)
+	 return _error->Errno("chdir","Unable to change to %s",CD.c_str());
+   };
+
+   closedir(D);
+   
+   return !_error->PendingError();
+}
+
+// Score - We compute a 'score' for a path				/*{{{*/
+// ---------------------------------------------------------------------
+/* Paths are scored based on how close they come to what I consider
+   normal. That is ones that have 'dist' 'stable' 'testing' will score
+   higher than ones without. */
+int pkgCdrom::Score(string Path)
+{
+   int Res = 0;
+   if (Path.find("stable/") != string::npos)
+      Res += 29;
+   if (Path.find("/binary-") != string::npos)
+      Res += 20;
+   if (Path.find("testing/") != string::npos)
+      Res += 28;
+   if (Path.find("unstable/") != string::npos)
+      Res += 27;
+   if (Path.find("/dists/") != string::npos)
+      Res += 40;
+   if (Path.find("/main/") != string::npos)
+      Res += 20;
+   if (Path.find("/contrib/") != string::npos)
+      Res += 20;
+   if (Path.find("/non-free/") != string::npos)
+      Res += 20;
+   if (Path.find("/non-US/") != string::npos)
+      Res += 20;
+   if (Path.find("/source/") != string::npos)
+      Res += 10;
+   if (Path.find("/debian/") != string::npos)
+      Res -= 10;
+   return Res;
+}
+
+									/*}}}*/
+// DropBinaryArch - Dump dirs with a string like /binary-<foo>/		/*{{{*/
+// ---------------------------------------------------------------------
+/* Here we drop everything that is not this machines arch */
+bool pkgCdrom::DropBinaryArch(vector<string> &List)
+{
+   char S[300];
+   snprintf(S,sizeof(S),"/binary-%s/",
+	    _config->Find("Apt::Architecture").c_str());
+   
+   for (unsigned int I = 0; I < List.size(); I++)
+   {
+      const char *Str = List[I].c_str();
+      
+      const char *Res;
+      if ((Res = strstr(Str,"/binary-")) == 0)
+	 continue;
+
+      // Weird, remove it.
+      if (strlen(Res) < strlen(S))
+      {
+	 List.erase(List.begin() + I);
+	 I--;
+	 continue;
+      }
+	  
+      // See if it is our arch
+      if (stringcmp(Res,Res + strlen(S),S) == 0)
+	 continue;
+      
+      // Erase it
+      List.erase(List.begin() + I);
+      I--;
+   }
+   
+   return true;
+}
+
+
+// DropRepeats - Drop repeated files resulting from symlinks		/*{{{*/
+// ---------------------------------------------------------------------
+/* Here we go and stat every file that we found and strip dup inodes. */
+bool pkgCdrom::DropRepeats(vector<string> &List,const char *Name)
+{
+   // Get a list of all the inodes
+   ino_t *Inodes = new ino_t[List.size()];
+   for (unsigned int I = 0; I != List.size(); I++)
+   {
+      struct stat Buf;
+      if (stat((List[I] + Name).c_str(),&Buf) != 0 &&
+	  stat((List[I] + Name + ".gz").c_str(),&Buf) != 0)
+	 _error->Errno("stat","Failed to stat %s%s",List[I].c_str(),
+		       Name);
+      Inodes[I] = Buf.st_ino;
+   }
+   
+   if (_error->PendingError() == true)
+      return false;
+   
+   // Look for dups
+   for (unsigned int I = 0; I != List.size(); I++)
+   {
+      for (unsigned int J = I+1; J < List.size(); J++)
+      {
+	 // No match
+	 if (Inodes[J] != Inodes[I])
+	    continue;
+	 
+	 // We score the two paths.. and erase one
+	 int ScoreA = Score(List[I]);
+	 int ScoreB = Score(List[J]);
+	 if (ScoreA < ScoreB)
+	 {
+	    List[I] = string();
+	    break;
+	 }
+	 
+	 List[J] = string();
+      }
+   }  
+ 
+   // Wipe erased entries
+   for (unsigned int I = 0; I < List.size();)
+   {
+      if (List[I].empty() == false)
+	 I++;
+      else
+	 List.erase(List.begin()+I);
+   }
+   
+   return true;
+}
+									/*}}}*/
+
+// ReduceSourceList - Takes the path list and reduces it		/*{{{*/
+// ---------------------------------------------------------------------
+/* This takes the list of source list expressed entires and collects
+   similar ones to form a single entry for each dist */
+void pkgCdrom::ReduceSourcelist(string CD,vector<string> &List)
+{
+   sort(List.begin(),List.end());
+   
+   // Collect similar entries
+   for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+   {
+      // Find a space..
+      string::size_type Space = (*I).find(' ');
+      if (Space == string::npos)
+	 continue;
+      string::size_type SSpace = (*I).find(' ',Space + 1);
+      if (SSpace == string::npos)
+	 continue;
+
+      string Word1 = string(*I,Space,SSpace-Space);
+      string Prefix = string(*I,0,Space);
+      for (vector<string>::iterator J = List.begin(); J != I; J++)
+      {
+	 // Find a space..
+	 string::size_type Space2 = (*J).find(' ');
+	 if (Space2 == string::npos)
+	    continue;
+	 string::size_type SSpace2 = (*J).find(' ',Space2 + 1);
+	 if (SSpace2 == string::npos)
+	    continue;
+	 
+	 if (string(*J,0,Space2) != Prefix)
+	    continue;
+	 if (string(*J,Space2,SSpace2-Space2) != Word1)
+	    continue;
+	 
+	 *J += string(*I,SSpace);
+	 *I = string();
+      }
+   }   
+
+   // Wipe erased entries
+   for (unsigned int I = 0; I < List.size();)
+   {
+      if (List[I].empty() == false)
+	 I++;
+      else
+	 List.erase(List.begin()+I);
+   }
+}
+									/*}}}*/
+// WriteDatabase - Write the CDROM Database file			/*{{{*/
+// ---------------------------------------------------------------------
+/* We rewrite the configuration class associated with the cdrom database. */
+bool pkgCdrom::WriteDatabase(Configuration &Cnf)
+{
+   string DFile = _config->FindFile("Dir::State::cdroms");
+   string NewFile = DFile + ".new";
+   
+   unlink(NewFile.c_str());
+   ofstream Out(NewFile.c_str());
+   if (!Out)
+      return _error->Errno("ofstream::ofstream",
+			   "Failed to open %s.new",DFile.c_str());
+   
+   /* Write out all of the configuration directives by walking the
+      configuration tree */
+   const Configuration::Item *Top = Cnf.Tree(0);
+   for (; Top != 0;)
+   {
+      // Print the config entry
+      if (Top->Value.empty() == false)
+	 Out <<  Top->FullTag() + " \"" << Top->Value << "\";" << endl;
+      
+      if (Top->Child != 0)
+      {
+	 Top = Top->Child;
+	 continue;
+      }
+      
+      while (Top != 0 && Top->Next == 0)
+	 Top = Top->Parent;
+      if (Top != 0)
+	 Top = Top->Next;
+   }   
+
+   Out.close();
+   
+   rename(DFile.c_str(),string(DFile + '~').c_str());
+   if (rename(NewFile.c_str(),DFile.c_str()) != 0)
+      return _error->Errno("rename","Failed to rename %s.new to %s",
+			   DFile.c_str(),DFile.c_str());
+
+   return true;
+}
+									/*}}}*/
+// WriteSourceList - Write an updated sourcelist			/*{{{*/
+// ---------------------------------------------------------------------
+/* This reads the old source list and copies it into the new one. It 
+   appends the new CDROM entires just after the first block of comments.
+   This places them first in the file. It also removes any old entries
+   that were the same. */
+bool pkgCdrom::WriteSourceList(string Name,vector<string> &List,bool Source)
+{
+   if (List.size() == 0)
+      return true;
+
+   string File = _config->FindFile("Dir::Etc::sourcelist");
+
+   // Open the stream for reading
+   ifstream F((FileExists(File)?File.c_str():"/dev/null"),
+	      ios::in );
+   if (!F != 0)
+      return _error->Errno("ifstream::ifstream","Opening %s",File.c_str());
+
+   string NewFile = File + ".new";
+   unlink(NewFile.c_str());
+   ofstream Out(NewFile.c_str());
+   if (!Out)
+      return _error->Errno("ofstream::ofstream",
+			   "Failed to open %s.new",File.c_str());
+
+   // Create a short uri without the path
+   string ShortURI = "cdrom:[" + Name + "]/";   
+   string ShortURI2 = "cdrom:" + Name + "/";     // For Compatibility
+
+   string Type;
+   if (Source == true)
+      Type = "deb-src";
+   else
+      Type = "deb";
+   
+   char Buffer[300];
+   int CurLine = 0;
+   bool First = true;
+   while (F.eof() == false)
+   {      
+      F.getline(Buffer,sizeof(Buffer));
+      CurLine++;
+      _strtabexpand(Buffer,sizeof(Buffer));
+      _strstrip(Buffer);
+            
+      // Comment or blank
+      if (Buffer[0] == '#' || Buffer[0] == 0)
+      {
+	 Out << Buffer << endl;
+	 continue;
+      }
+
+      if (First == true)
+      {
+	 for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+	 {
+	    string::size_type Space = (*I).find(' ');
+	    if (Space == string::npos)
+	       return _error->Error("Internal error");
+	    Out << Type << " cdrom:[" << Name << "]/" << string(*I,0,Space) <<
+	       " " << string(*I,Space+1) << endl;
+	 }
+      }
+      First = false;
+      
+      // Grok it
+      string cType;
+      string URI;
+      const char *C = Buffer;
+      if (ParseQuoteWord(C,cType) == false ||
+	  ParseQuoteWord(C,URI) == false)
+      {
+	 Out << Buffer << endl;
+	 continue;
+      }
+
+      // Emit lines like this one
+      if (cType != Type || (string(URI,0,ShortURI.length()) != ShortURI &&
+	  string(URI,0,ShortURI.length()) != ShortURI2))
+      {
+	 Out << Buffer << endl;
+	 continue;
+      }      
+   }
+   
+   // Just in case the file was empty
+   if (First == true)
+   {
+      for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+      {
+	 string::size_type Space = (*I).find(' ');
+	 if (Space == string::npos)
+	    return _error->Error("Internal error");
+	 
+	 Out << "deb cdrom:[" << Name << "]/" << string(*I,0,Space) << 
+	    " " << string(*I,Space+1) << endl;
+      }
+   }
+   
+   Out.close();
+
+   rename(File.c_str(),string(File + '~').c_str());
+   if (rename(NewFile.c_str(),File.c_str()) != 0)
+      return _error->Errno("rename","Failed to rename %s.new to %s",
+			   File.c_str(),File.c_str());
+   
+   return true;
+}
+
+
+bool pkgCdrom::Ident(string &ident, pkgCdromStatus *log)
+{
+   stringstream msg;
+
+   // Startup
+   string CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
+   if (CDROM[0] == '.')
+      CDROM= SafeGetCWD() + '/' + CDROM;
+
+   if(log) {
+      msg.str("");
+      ioprintf(msg, _("Using CD-ROM mount point %s\nMounting CD-ROM\n"),
+		      CDROM.c_str());
+      log->Update(msg.str());
+   }
+   if (MountCdrom(CDROM) == false)
+      return _error->Error("Failed to mount the cdrom.");
+
+   // Hash the CD to get an ID
+   if(log) 
+      log->Update(_("Identifying.. "));
+   
+
+   if (IdentCdrom(CDROM,ident) == false)
+   {
+      ident = "";
+      return false;
+   }
+
+   msg.str("");
+   ioprintf(msg, "[%s]\n",ident.c_str());
+   log->Update(msg.str());
+
+
+   // Read the database
+   Configuration Database;
+   string DFile = _config->FindFile("Dir::State::cdroms");
+   if (FileExists(DFile) == true)
+   {
+      if (ReadConfigFile(Database,DFile) == false)
+	 return _error->Error("Unable to read the cdrom database %s",
+			      DFile.c_str());
+   }
+   if(log) {
+      msg.str("");
+      ioprintf(msg, _("Stored Label: %s \n"),
+	       Database.Find("CD::"+ident).c_str());
+      log->Update(msg.str());
+   }
+   return true;
+}
+
+
+bool pkgCdrom::Add(pkgCdromStatus *log)
+{
+   stringstream msg;
+
+   // Startup
+   string CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
+   if (CDROM[0] == '.')
+      CDROM= SafeGetCWD() + '/' + CDROM;
+   
+   if(log) {
+      log->SetTotal(STEP_LAST);
+      msg.str("");
+      ioprintf(msg, _("Using CD-ROM mount point %s\n"), CDROM.c_str());
+      log->Update(msg.str(), STEP_PREPARE);
+   }
+
+   // Read the database
+   Configuration Database;
+   string DFile = _config->FindFile("Dir::State::cdroms");
+   if (FileExists(DFile) == true)
+   {
+      if (ReadConfigFile(Database,DFile) == false)
+	 return _error->Error("Unable to read the cdrom database %s",
+			      DFile.c_str());
+   }
+   
+   // Unmount the CD and get the user to put in the one they want
+   if (_config->FindB("APT::CDROM::NoMount",false) == false)
+   {
+      if(log)
+	 log->Update(_("Unmounting CD-ROM\n"), STEP_UNMOUNT);
+      UnmountCdrom(CDROM);
+
+      if(log) {
+	 log->Update(_("Waiting for disc...\n"), STEP_WAIT);
+	 if(!log->ChangeCdrom()) {
+	    // user aborted
+	    return false; 
+	 }
+      }
+
+      // Mount the new CDROM
+      log->Update(_("Mounting CD-ROM...\n"), STEP_MOUNT);
+      if (MountCdrom(CDROM) == false)
+	 return _error->Error("Failed to mount the cdrom.");
+   }
+   
+   // Hash the CD to get an ID
+   if(log)
+      log->Update(_("Identifying.. "), STEP_IDENT);
+   string ID;
+   if (IdentCdrom(CDROM,ID) == false)
+   {
+      log->Update("\n");
+      return false;
+   }
+   if(log) 
+      log->Update("["+ID+"]\n");
+
+   if(log) 
+      log->Update(_("Scanning Disc for index files..\n"),STEP_SCAN);
+   
+   // Get the CD structure
+   vector<string> List;
+   vector<string> SourceList;
+   vector<string> SigList;
+   string StartDir = SafeGetCWD();
+   string InfoDir;
+   if (FindPackages(CDROM,List,SourceList, SigList,InfoDir,log) == false)
+   {
+      log->Update("\n");
+      return false;
+   }
+
+   chdir(StartDir.c_str());
+
+   if (_config->FindB("Debug::aptcdrom",false) == true)
+   {
+      cout << "I found (binary):" << endl;
+      for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+	 cout << *I << endl;
+      cout << "I found (source):" << endl;
+      for (vector<string>::iterator I = SourceList.begin(); I != SourceList.end(); I++)
+	 cout << *I << endl;
+      cout << "I found (Signatures):" << endl;
+      for (vector<string>::iterator I = SigList.begin(); I != SigList.end(); I++)
+	 cout << *I << endl;
+   }   
+
+   //log->Update(_("Cleaning package lists..."), STEP_CLEAN);
+
+   // Fix up the list
+   DropBinaryArch(List);
+   DropRepeats(List,"Packages");
+   DropRepeats(SourceList,"Sources");
+   DropRepeats(SigList,"Release.gpg");
+   if(log) {
+      msg.str("");
+      ioprintf(msg, _("Found %i package indexes, %i source indexes and "
+		      "%i signatures\n"), 
+	       List.size(), SourceList.size(), SigList.size());
+      log->Update(msg.str(), STEP_SCAN);
+   }
+
+   if (List.size() == 0 && SourceList.size() == 0)
+      return _error->Error("Unable to locate any package files, perhaps this is not a Debian Disc");
+
+   // Check if the CD is in the database
+   string Name;
+   if (Database.Exists("CD::" + ID) == false ||
+       _config->FindB("APT::CDROM::Rename",false) == true)
+   {
+      // Try to use the CDs label if at all possible
+      if (InfoDir.empty() == false &&
+	  FileExists(InfoDir + "/info") == true)
+      {
+	 ifstream F(string(InfoDir + "/info").c_str());
+	 if (!F == 0)
+	    getline(F,Name);
+
+	 if (Name.empty() == false)
+	 {
+	    // Escape special characters
+	    string::iterator J = Name.begin();
+	    for (; J != Name.end(); J++)
+	       if (*J == '"' || *J == ']' || *J == '[')
+		  *J = '_';
+	    
+	    if(log) {
+	       msg.str("");
+	       ioprintf(msg, "Found label '%s'\n", Name.c_str());
+	       log->Update(msg.str());
+	    }
+	    Database.Set("CD::" + ID + "::Label",Name);
+	 }	 
+      }
+      
+      if (_config->FindB("APT::CDROM::Rename",false) == true ||
+	  Name.empty() == true)
+      {
+	 if(!log) 
+	    return _error->Error("No disc name found and no way to ask for it");
+
+	 while(true) {
+	    if(!log->AskCdromName(Name)) {
+	       // user canceld
+	       return false; 
+	    }
+	    cout << "Name: '" << Name << "'" << endl;
+
+	    if (Name.empty() == false &&
+		Name.find('"') == string::npos &&
+		Name.find('[') == string::npos &&
+		Name.find(']') == string::npos)
+	       break;
+	    log->Update(_("That is not a valid name, try again.\n"));
+	 }
+      }      
+   }
+   else
+      Name = Database.Find("CD::" + ID);
+
+   // Escape special characters
+   string::iterator J = Name.begin();
+   for (; J != Name.end(); J++)
+      if (*J == '"' || *J == ']' || *J == '[')
+	 *J = '_';
+   
+   Database.Set("CD::" + ID,Name);
+   if(log) {
+      msg.str("");
+      ioprintf(msg, _("This Disc is called: \n'%s'\n"), Name.c_str());
+      log->Update(msg.str());
+   }
+
+   log->Update(_("Copying package lists..."), STEP_COPY);
+   // take care of the signatures and copy them if they are ok
+   // (we do this before PackageCopy as it modifies "List" and "SourceList")
+   SigVerify SignVerify;
+   SignVerify.CopyAndVerify(CDROM, Name, SigList, List, SourceList);
+   
+   // Copy the package files to the state directory
+   PackageCopy Copy;
+   SourceCopy SrcCopy;
+   if (Copy.CopyPackages(CDROM,Name,List, log) == false ||
+       SrcCopy.CopyPackages(CDROM,Name,SourceList, log) == false)
+      return false;
+
+   // reduce the List so that it takes less space in sources.list
+   ReduceSourcelist(CDROM,List);
+   ReduceSourcelist(CDROM,SourceList);
+
+   // Write the database and sourcelist
+   if (_config->FindB("APT::cdrom::NoAct",false) == false)
+   {
+      if (WriteDatabase(Database) == false)
+	 return false;
+      
+      if(log) {
+	 log->Update(_("Writing new source list\n"), STEP_WRITE);
+      }
+      if (WriteSourceList(Name,List,false) == false ||
+	  WriteSourceList(Name,SourceList,true) == false)
+	 return false;
+   }
+
+   // Print the sourcelist entries
+   if(log) 
+      log->Update(_("Source List entries for this Disc are:\n"));
+
+   for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+   {
+      string::size_type Space = (*I).find(' ');
+      if (Space == string::npos)
+	 return _error->Error("Internal error");
+
+      if(log) {
+	 msg.str("");
+	 msg << "deb cdrom:[" << Name << "]/" << string(*I,0,Space) << 
+	    " " << string(*I,Space+1) << endl;
+	 log->Update(msg.str());
+      }
+   }
+
+   for (vector<string>::iterator I = SourceList.begin(); I != SourceList.end(); I++)
+   {
+      string::size_type Space = (*I).find(' ');
+      if (Space == string::npos)
+	 return _error->Error("Internal error");
+
+      if(log) {
+	 msg.str("");
+	 msg << "deb-src cdrom:[" << Name << "]/" << string(*I,0,Space) << 
+	    " " << string(*I,Space+1) << endl;
+	 log->Update(msg.str());
+      }
+   }
+
+   
+
+   // Unmount and finish
+   if (_config->FindB("APT::CDROM::NoMount",false) == false) {
+      log->Update(_("Unmounting CD-ROM..."), STEP_LAST);
+      UnmountCdrom(CDROM);
+   }
+
+   return true;
+}
diff --git a/apt-pkg/cdrom.h b/apt-pkg/cdrom.h
new file mode 100644
index 000000000..085eb64e2
--- /dev/null
+++ b/apt-pkg/cdrom.h
@@ -0,0 +1,71 @@
+#ifndef PKGLIB_CDROM_H
+#define PKGLIB_CDROM_H
+
+#include<apt-pkg/init.h>
+#include<string>
+#include<vector>
+
+#ifdef __GNUG__
+#pragma interface "apt-pkg/cdrom.h"
+#endif
+
+using namespace std;
+
+class pkgCdromStatus
+{
+ protected:
+   int totalSteps;
+
+ public:
+   pkgCdromStatus() {};
+   virtual ~pkgCdromStatus() {};
+
+   // total steps
+   virtual void SetTotal(int total) { totalSteps = total; };
+   // update steps, will be called regularly as a "pulse"
+   virtual void Update(string text="", int current=0) = 0;
+   
+   // ask for cdrom insert
+   virtual bool ChangeCdrom() = 0;
+   // ask for cdrom name
+   virtual bool AskCdromName(string &Name) = 0;
+   // Progress indicator for the Index rewriter
+   virtual OpProgress* GetOpProgress() {return NULL; };
+};
+
+class pkgCdrom 
+{
+ protected:
+   enum {
+      STEP_PREPARE = 1,
+      STEP_UNMOUNT,
+      STEP_WAIT,
+      STEP_MOUNT,
+      STEP_IDENT,
+      STEP_SCAN,
+      STEP_COPY,
+      STEP_WRITE,
+      STEP_UNMOUNT3,
+      STEP_LAST
+   };
+
+
+   bool FindPackages(string CD,vector<string> &List,
+		     vector<string> &SList, vector<string> &SigList,
+		     string &InfoDir, pkgCdromStatus *log,
+		     unsigned int Depth = 0);
+   bool DropBinaryArch(vector<string> &List);
+   bool DropRepeats(vector<string> &List,const char *Name);
+   void ReduceSourcelist(string CD,vector<string> &List);
+   bool WriteDatabase(Configuration &Cnf);
+   bool WriteSourceList(string Name,vector<string> &List,bool Source);
+   int Score(string Path);
+
+ public:
+   bool Ident(string &ident, pkgCdromStatus *log);
+   bool Add(pkgCdromStatus *log);
+};
+
+
+
+#endif
diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc
new file mode 100644
index 000000000..901001891
--- /dev/null
+++ b/apt-pkg/indexcopy.cc
@@ -0,0 +1,644 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: indexcopy.cc,v 1.10 2002/03/26 07:38:58 jgg Exp $
+/* ######################################################################
+
+   Index Copying - Aid for copying and verifying the index files
+   
+   This class helps apt-cache reconstruct a damaged index files. 
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include "indexcopy.h"
+
+#include <apt-pkg/error.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/tagfile.h>
+#include <apt-pkg/indexrecords.h>
+#include <apt-pkg/md5.h>
+#include <apt-pkg/cdrom.h>
+#include <apti18n.h>
+
+#include <iostream>
+#include <sstream>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <stdio.h>
+									/*}}}*/
+
+using namespace std;
+
+// IndexCopy::CopyPackages - Copy the package files from the CD		/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
+			     pkgCdromStatus *log)
+{
+   OpProgress *Progress = NULL;
+   if (List.size() == 0)
+      return true;
+   
+   if(log) 
+      Progress = log->GetOpProgress();
+   
+   bool NoStat = _config->FindB("APT::CDROM::Fast",false);
+   bool Debug = _config->FindB("Debug::aptcdrom",false);
+   
+   // Prepare the progress indicator
+   unsigned long TotalSize = 0;
+   for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+   {
+      struct stat Buf;
+      if (stat(string(*I + GetFileName()).c_str(),&Buf) != 0 &&
+	  stat(string(*I + GetFileName() + ".gz").c_str(),&Buf) != 0)
+	 return _error->Errno("stat","Stat failed for %s",
+			      string(*I + GetFileName()).c_str());
+      TotalSize += Buf.st_size;
+   }	
+
+   unsigned long CurrentSize = 0;
+   unsigned int NotFound = 0;
+   unsigned int WrongSize = 0;
+   unsigned int Packages = 0;
+   for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
+   {      
+      string OrigPath = string(*I,CDROM.length());
+      unsigned long FileSize = 0;
+      
+      // Open the package file
+      FileFd Pkg;
+      if (FileExists(*I + GetFileName()) == true)
+      {
+	 Pkg.Open(*I + GetFileName(),FileFd::ReadOnly);
+	 FileSize = Pkg.Size();
+      }      
+      else
+      {
+	 FileFd From(*I + GetFileName() + ".gz",FileFd::ReadOnly);
+	 if (_error->PendingError() == true)
+	    return false;
+	 FileSize = From.Size();
+	 
+	 // Get a temp file
+	 FILE *tmp = tmpfile();
+	 if (tmp == 0)
+	    return _error->Errno("tmpfile","Unable to create a tmp file");
+	 Pkg.Fd(dup(fileno(tmp)));
+	 fclose(tmp);
+	 
+	 // Fork gzip
+	 pid_t Process = fork();
+	 if (Process < 0)
+	    return _error->Errno("fork","Couldn't fork gzip");
+	 
+	 // The child
+	 if (Process == 0)
+	 {	    
+	    dup2(From.Fd(),STDIN_FILENO);
+	    dup2(Pkg.Fd(),STDOUT_FILENO);
+	    SetCloseExec(STDIN_FILENO,false);
+	    SetCloseExec(STDOUT_FILENO,false);
+	    
+	    const char *Args[3];
+	    string Tmp =  _config->Find("Dir::bin::gzip","gzip");
+	    Args[0] = Tmp.c_str();
+	    Args[1] = "-d";
+	    Args[2] = 0;
+	    execvp(Args[0],(char **)Args);
+	    exit(100);
+	 }
+	 
+	 // Wait for gzip to finish
+	 if (ExecWait(Process,_config->Find("Dir::bin::gzip","gzip").c_str(),false) == false)
+	    return _error->Error("gzip failed, perhaps the disk is full.");
+	 
+	 Pkg.Seek(0);
+      }
+      pkgTagFile Parser(&Pkg);
+      if (_error->PendingError() == true)
+	 return false;
+      
+      // Open the output file
+      char S[400];
+      snprintf(S,sizeof(S),"cdrom:[%s]/%s%s",Name.c_str(),
+	       (*I).c_str() + CDROM.length(),GetFileName());
+      string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
+      TargetF += URItoFileName(S);
+      if (_config->FindB("APT::CDROM::NoAct",false) == true)
+	 TargetF = "/dev/null";
+      FileFd Target(TargetF,FileFd::WriteEmpty);
+      FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
+      if (_error->PendingError() == true)
+	 return false;
+      if (TargetFl == 0)
+	 return _error->Errno("fdopen","Failed to reopen fd");
+      
+      // Setup the progress meter
+      if(Progress)
+	 Progress->OverallProgress(CurrentSize,TotalSize,FileSize,
+				   string("Reading ") + Type() + " Indexes");
+
+      // Parse
+      if(Progress)
+	 Progress->SubProgress(Pkg.Size());
+      pkgTagSection Section;
+      this->Section = &Section;
+      string Prefix;
+      unsigned long Hits = 0;
+      unsigned long Chop = 0;
+      while (Parser.Step(Section) == true)
+      {
+	 if(Progress)
+	    Progress->Progress(Parser.Offset());
+	 string File;
+	 unsigned long Size;
+	 if (GetFile(File,Size) == false)
+	 {
+	    fclose(TargetFl);
+	    return false;
+	 }
+	 
+	 if (Chop != 0)
+	    File = OrigPath + ChopDirs(File,Chop);
+	 
+	 // See if the file exists
+	 bool Mangled = false;
+	 if (NoStat == false || Hits < 10)
+	 {
+	    // Attempt to fix broken structure
+	    if (Hits == 0)
+	    {
+	       if (ReconstructPrefix(Prefix,OrigPath,CDROM,File) == false &&
+		   ReconstructChop(Chop,*I,File) == false)
+	       {
+		  if (Debug == true)
+		     clog << "Missed: " << File << endl;
+		  NotFound++;
+		  continue;
+	       }
+	       if (Chop != 0)
+		  File = OrigPath + ChopDirs(File,Chop);
+	    }
+	    
+	    // Get the size
+	    struct stat Buf;
+	    if (stat(string(CDROM + Prefix + File).c_str(),&Buf) != 0 || 
+		Buf.st_size == 0)
+	    {
+	       // Attempt to fix busted symlink support for one instance
+	       string OrigFile = File;
+	       string::size_type Start = File.find("binary-");
+	       string::size_type End = File.find("/",Start+3);
+	       if (Start != string::npos && End != string::npos)
+	       {
+		  File.replace(Start,End-Start,"binary-all");
+		  Mangled = true;
+	       }
+	       
+	       if (Mangled == false ||
+		   stat(string(CDROM + Prefix + File).c_str(),&Buf) != 0)
+	       {
+		  if (Debug == true)
+		     clog << "Missed(2): " << OrigFile << endl;
+		  NotFound++;
+		  continue;
+	       }	       
+	    }	    
+	    			    	    
+	    // Size match
+	    if ((unsigned)Buf.st_size != Size)
+	    {
+	       if (Debug == true)
+		  clog << "Wrong Size: " << File << endl;
+	       WrongSize++;
+	       continue;
+	    }
+	 }
+	 
+	 Packages++;
+	 Hits++;
+	 
+	 if (RewriteEntry(TargetFl,File) == false)
+	 {
+	    fclose(TargetFl);
+	    return false;
+	 }
+      }
+      fclose(TargetFl);
+
+      if (Debug == true)
+	 cout << " Processed by using Prefix '" << Prefix << "' and chop " << Chop << endl;
+	 
+      if (_config->FindB("APT::CDROM::NoAct",false) == false)
+      {
+	 // Move out of the partial directory
+	 Target.Close();
+	 string FinalF = _config->FindDir("Dir::State::lists");
+	 FinalF += URItoFileName(S);
+	 if (rename(TargetF.c_str(),FinalF.c_str()) != 0)
+	    return _error->Errno("rename","Failed to rename");
+      }
+	 
+      /* Mangle the source to be in the proper notation with
+       	 prefix dist [component] */ 
+      *I = string(*I,Prefix.length());
+      ConvertToSourceList(CDROM,*I);
+      *I = Prefix + ' ' + *I;
+      
+      CurrentSize += FileSize;
+   }   
+   if(Progress)
+      Progress->Done();
+   
+   // Some stats
+   if(log) {
+      stringstream msg;
+      if(NotFound == 0 && WrongSize == 0)
+	 ioprintf(msg, _("Wrote %i records.\n"), Packages);
+      else if (NotFound != 0 && WrongSize == 0)
+	 ioprintf(msg, _("Wrote %i records with %i missing files.\n"), 
+		  Packages, NotFound);
+      else if (NotFound == 0 && WrongSize != 0)
+	 ioprintf(msg, _("Wrote %i records with %i mismachted files\n"), 
+		  Packages, WrongSize);
+      if (NotFound != 0 && WrongSize != 0)
+	 ioprintf(msg, _("Wrote %i records with %i missing files and %i mismachted files\n"), Packages, NotFound, WrongSize);
+   }
+   
+   if (Packages == 0)
+      _error->Warning("No valid records were found.");
+
+   if (NotFound + WrongSize > 10)
+      _error->Warning("Alot of entries were discarded, something may be wrong.\n");
+   
+
+   return true;
+}
+									/*}}}*/
+// IndexCopy::ChopDirs - Chop off the leading directory components	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string IndexCopy::ChopDirs(string Path,unsigned int Depth)
+{
+   string::size_type I = 0;
+   do
+   {
+      I = Path.find('/',I+1);
+      Depth--;
+   }
+   while (I != string::npos && Depth != 0);
+   
+   if (I == string::npos)
+      return string();
+   
+   return string(Path,I+1);
+}
+									/*}}}*/
+// IndexCopy::ReconstructPrefix - Fix strange prefixing			/*{{{*/
+// ---------------------------------------------------------------------
+/* This prepends dir components from the path to the package files to
+   the path to the deb until it is found */
+bool IndexCopy::ReconstructPrefix(string &Prefix,string OrigPath,string CD,
+				  string File)
+{
+   bool Debug = _config->FindB("Debug::aptcdrom",false);
+   unsigned int Depth = 1;
+   string MyPrefix = Prefix;
+   while (1)
+   {
+      struct stat Buf;
+      if (stat(string(CD + MyPrefix + File).c_str(),&Buf) != 0)
+      {
+	 if (Debug == true)
+	    cout << "Failed, " << CD + MyPrefix + File << endl;
+	 if (GrabFirst(OrigPath,MyPrefix,Depth++) == true)
+	    continue;
+	 
+	 return false;
+      }
+      else
+      {
+	 Prefix = MyPrefix;
+	 return true;
+      }      
+   }
+   return false;
+}
+									/*}}}*/
+// IndexCopy::ReconstructChop - Fixes bad source paths			/*{{{*/
+// ---------------------------------------------------------------------
+/* This removes path components from the filename and prepends the location
+   of the package files until a file is found */
+bool IndexCopy::ReconstructChop(unsigned long &Chop,string Dir,string File)
+{
+   // Attempt to reconstruct the filename
+   unsigned long Depth = 0;
+   while (1)
+   {
+      struct stat Buf;
+      if (stat(string(Dir + File).c_str(),&Buf) != 0)
+      {
+	 File = ChopDirs(File,1);
+	 Depth++;
+	 if (File.empty() == false)
+	    continue;
+	 return false;
+      }
+      else
+      {
+	 Chop = Depth;
+	 return true;
+      }
+   }
+   return false;
+}
+									/*}}}*/
+// IndexCopy::ConvertToSourceList - Convert a Path to a sourcelist 	/*{{{*/
+// ---------------------------------------------------------------------
+/* We look for things in dists/ notation and convert them to 
+   <dist> <component> form otherwise it is left alone. This also strips
+   the CD path. 
+ 
+   This implements a regex sort of like: 
+    (.*)/dists/([^/]*)/(.*)/binary-* 
+     ^          ^      ^- Component
+     |          |-------- Distribution
+     |------------------- Path
+   
+   It was deciced to use only a single word for dist (rather than say
+   unstable/non-us) to increase the chance that each CD gets a single
+   line in sources.list.
+ */
+void IndexCopy::ConvertToSourceList(string CD,string &Path)
+{
+   char S[300];
+   snprintf(S,sizeof(S),"binary-%s",_config->Find("Apt::Architecture").c_str());
+   
+   // Strip the cdrom base path
+   Path = string(Path,CD.length());
+   if (Path.empty() == true)
+      Path = "/";
+   
+   // Too short to be a dists/ type
+   if (Path.length() < strlen("dists/"))
+      return;
+   
+   // Not a dists type.
+   if (stringcmp(Path.c_str(),Path.c_str()+strlen("dists/"),"dists/") != 0)
+      return;
+      
+   // Isolate the dist
+   string::size_type Slash = strlen("dists/");
+   string::size_type Slash2 = Path.find('/',Slash + 1);
+   if (Slash2 == string::npos || Slash2 + 2 >= Path.length())
+      return;
+   string Dist = string(Path,Slash,Slash2 - Slash);
+   
+   // Isolate the component
+   Slash = Slash2;
+   for (unsigned I = 0; I != 10; I++)
+   {
+      Slash = Path.find('/',Slash+1);
+      if (Slash == string::npos || Slash + 2 >= Path.length())
+	 return;
+      string Comp = string(Path,Slash2+1,Slash - Slash2-1);
+	 
+      // Verify the trailing binary- bit
+      string::size_type BinSlash = Path.find('/',Slash + 1);
+      if (Slash == string::npos)
+	 return;
+      string Binary = string(Path,Slash+1,BinSlash - Slash-1);
+      
+      if (Binary != S && Binary != "source")
+	 continue;
+
+      Path = Dist + ' ' + Comp;
+      return;
+   }   
+}
+									/*}}}*/
+// IndexCopy::GrabFirst - Return the first Depth path components	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool IndexCopy::GrabFirst(string Path,string &To,unsigned int Depth)
+{
+   string::size_type I = 0;
+   do
+   {
+      I = Path.find('/',I+1);
+      Depth--;
+   }
+   while (I != string::npos && Depth != 0);
+   
+   if (I == string::npos)
+      return false;
+
+   To = string(Path,0,I+1);
+   return true;
+}
+									/*}}}*/
+// PackageCopy::GetFile - Get the file information from the section	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool PackageCopy::GetFile(string &File,unsigned long &Size)
+{
+   File = Section->FindS("Filename");
+   Size = Section->FindI("Size");
+   if (File.empty() || Size == 0)
+      return _error->Error("Cannot find filename or size tag");
+   return true;
+}
+									/*}}}*/
+// PackageCopy::RewriteEntry - Rewrite the entry with a new filename	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool PackageCopy::RewriteEntry(FILE *Target,string File)
+{
+   TFRewriteData Changes[] = {{"Filename",File.c_str()},
+                              {}};
+   
+   if (TFRewrite(Target,*Section,TFRewritePackageOrder,Changes) == false)
+      return false;
+   fputc('\n',Target);
+   return true;
+}
+									/*}}}*/
+// SourceCopy::GetFile - Get the file information from the section	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool SourceCopy::GetFile(string &File,unsigned long &Size)
+{
+   string Files = Section->FindS("Files");
+   if (Files.empty() == true)
+      return false;
+
+   // Stash the / terminated directory prefix
+   string Base = Section->FindS("Directory");
+   if (Base.empty() == false && Base[Base.length()-1] != '/')
+      Base += '/';
+   
+   // Read the first file triplet
+   const char *C = Files.c_str();
+   string sSize;
+   string MD5Hash;
+   
+   // Parse each of the elements
+   if (ParseQuoteWord(C,MD5Hash) == false ||
+       ParseQuoteWord(C,sSize) == false ||
+       ParseQuoteWord(C,File) == false)
+      return _error->Error("Error parsing file record");
+   
+   // Parse the size and append the directory
+   Size = atoi(sSize.c_str());
+   File = Base + File;
+   return true;
+}
+									/*}}}*/
+// SourceCopy::RewriteEntry - Rewrite the entry with a new filename	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool SourceCopy::RewriteEntry(FILE *Target,string File)
+{
+   string Dir(File,0,File.rfind('/'));
+   TFRewriteData Changes[] = {{"Directory",Dir.c_str()},
+                              {}};
+   
+   if (TFRewrite(Target,*Section,TFRewriteSourceOrder,Changes) == false)
+      return false;
+   fputc('\n',Target);
+   return true;
+}
+
+
+									/*}}}*/
+
+bool SigVerify::Verify(string prefix, string file, indexRecords *MetaIndex)
+{
+   const indexRecords::checkSum *Record = MetaIndex->Lookup(file);
+
+   if (!Record) 
+   {
+      _error->Warning("Can't find authentication record for: %s",file.c_str());
+      return false;
+   }
+
+   MD5Summation sum;
+   FileFd Fd(prefix+file, FileFd::ReadOnly);
+   sum.AddFD(Fd.Fd(), Fd.Size());
+   Fd.Close();
+   string MD5 = (string)sum.Result();
+   
+   if (Record->MD5Hash != MD5)
+   {
+      _error->Warning("MD5 mismatch for: %s",file.c_str());
+      return false;
+   }
+
+   if(_config->FindB("Debug::aptcdrom",false)) 
+   {
+      cout << "File: " << prefix+file << endl;
+      cout << "Expected MD5sum: " << Record->MD5Hash << endl;
+      cout << "got: " << MD5 << endl << endl;
+   }
+
+   return true;
+}
+
+bool SigVerify::CopyMetaIndex(string CDROM, string CDName, 
+			      string prefix, string file)
+{
+      char S[400];
+      snprintf(S,sizeof(S),"cdrom:[%s]/%s%s",CDName.c_str(),
+	       (prefix).c_str() + CDROM.length(),file.c_str());
+      string TargetF = _config->FindDir("Dir::State::lists");
+      TargetF += URItoFileName(S);
+
+      FileFd Target;
+      FileFd Rel;
+      Target.Open(TargetF,FileFd::WriteEmpty);
+      Rel.Open(prefix + file,FileFd::ReadOnly);
+      if (_error->PendingError() == true)
+	 return false;
+      if (CopyFile(Rel,Target) == false)
+	 return false;
+   
+      return true;
+}
+
+bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
+			      vector<string> PkgList,vector<string> SrcList)
+{
+   if (SigList.size() == 0)
+      return true;
+
+   bool Debug = _config->FindB("Debug::aptcdrom",false);
+
+   // Read all Release files
+   for (vector<string>::iterator I = SigList.begin(); I != SigList.end(); I++)
+   { 
+      if(Debug)
+	 cout << "Signature verify for: " << *I << endl;
+
+      indexRecords *MetaIndex = new indexRecords;
+      string prefix = *I; 
+
+      // a Release.gpg without a Release should never happen
+      if(!FileExists(*I+"Release"))
+	 continue;
+
+
+      // verify the gpg signature of "Release"
+      // gpg --verify "*I+Release.gpg", "*I+Release"
+      string gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
+      string pubringpath = _config->Find("Apt::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg");
+      pid_t pid = ExecFork();
+      if(pid < 0) {
+	 _error->Error("Fork failed");
+	 return false;
+      }
+      if(pid == 0) {
+	 execlp(gpgvpath.c_str(), gpgvpath.c_str(), "--keyring", 
+		pubringpath.c_str(), string(*I+"Release.gpg").c_str(), 
+		string(*I+"Release").c_str(), NULL);
+      }
+      if(!ExecWait(pid, "gpgv")) {
+	 _error->Warning("Signature verification failed for: %s",
+			 string(*I+"Release.gpg").c_str());
+	 // something went wrong, don't copy the Release.gpg
+	 // FIXME: delete any existing gpg file?
+	 continue;
+      }
+
+      // Open the Release file and add it to the MetaIndex
+      if(!MetaIndex->Load(*I+"Release"))
+      {
+	 _error->Error(MetaIndex->ErrorText.c_str());
+	 return false;
+      }
+      
+      // go over the Indexfiles and see if they verify
+      // if so, remove them from our copy of the lists
+      vector<string> keys = MetaIndex->MetaKeys();
+      for (vector<string>::iterator I = keys.begin(); I != keys.end(); I++)
+      { 
+	 if(!Verify(prefix,*I, MetaIndex)) {
+	    // something went wrong, don't copy the Release.gpg
+	    // FIXME: delete any existing gpg file?
+	    continue;	 
+	 }
+      }
+
+      // we need a fresh one for the Release.gpg
+      delete MetaIndex;
+   
+      // everything was fine, copy the Release and Release.gpg file
+      CopyMetaIndex(CDROM, Name, prefix, "Release");
+      CopyMetaIndex(CDROM, Name, prefix, "Release.gpg");
+   }   
+
+   return true;
+}
diff --git a/apt-pkg/indexcopy.h b/apt-pkg/indexcopy.h
new file mode 100644
index 000000000..fa8e9c156
--- /dev/null
+++ b/apt-pkg/indexcopy.h
@@ -0,0 +1,83 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: indexcopy.h,v 1.3 2001/05/27 04:46:54 jgg Exp $
+/* ######################################################################
+
+   Index Copying - Aid for copying and verifying the index files
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef INDEXCOPY_H
+#define INDEXCOPY_H
+
+#include <vector>
+#include <string>
+#include <stdio.h>
+
+using std::string;
+using std::vector;
+
+class pkgTagSection;
+class FileFd;
+class indexRecords;
+class pkgCdromStatus;
+
+class IndexCopy
+{
+   protected:
+   
+   pkgTagSection *Section;
+   
+   string ChopDirs(string Path,unsigned int Depth);
+   bool ReconstructPrefix(string &Prefix,string OrigPath,string CD,
+			  string File);
+   bool ReconstructChop(unsigned long &Chop,string Dir,string File);
+   void ConvertToSourceList(string CD,string &Path);
+   bool GrabFirst(string Path,string &To,unsigned int Depth);
+   virtual bool GetFile(string &Filename,unsigned long &Size) = 0;
+   virtual bool RewriteEntry(FILE *Target,string File) = 0;
+   virtual const char *GetFileName() = 0;
+   virtual const char *Type() = 0;
+   
+   public:
+
+   bool CopyPackages(string CDROM,string Name,vector<string> &List,
+		     pkgCdromStatus *log);
+};
+
+class PackageCopy : public IndexCopy
+{
+   protected:
+   
+   virtual bool GetFile(string &Filename,unsigned long &Size);
+   virtual bool RewriteEntry(FILE *Target,string File);
+   virtual const char *GetFileName() {return "Packages";};
+   virtual const char *Type() {return "Package";};
+   
+   public:
+};
+
+class SourceCopy : public IndexCopy
+{
+   protected:
+   
+   virtual bool GetFile(string &Filename,unsigned long &Size);
+   virtual bool RewriteEntry(FILE *Target,string File);
+   virtual const char *GetFileName() {return "Sources";};
+   virtual const char *Type() {return "Source";};
+   
+   public:
+};
+
+class SigVerify 
+{
+   bool Verify(string prefix,string file, indexRecords *records);
+   bool CopyMetaIndex(string CDROM, string CDName, 
+		      string prefix, string file);
+
+ public:
+   bool CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
+		      vector<string> PkgList,vector<string> SrcList);
+};
+
+#endif
diff --git a/apt-pkg/indexrecords.cc b/apt-pkg/indexrecords.cc
index c4b8a8235..06ed7921c 100644
--- a/apt-pkg/indexrecords.cc
+++ b/apt-pkg/indexrecords.cc
@@ -83,6 +83,17 @@ bool indexRecords::Load(const string Filename)
    return true;
 }
 
+vector<string> indexRecords::MetaKeys()
+{
+   std::vector<std::string> keys;
+   std::map<string,checkSum *>::iterator I = Entries.begin();
+   while(I != Entries.end()) {
+      keys.push_back((*I).first);
+      ++I;
+   }
+   return keys;
+}
+
 bool indexRecords::parseSumData(const char *&Start, const char *End,
 				   string &Name, string &Hash, size_t &Size)
 {
diff --git a/apt-pkg/indexrecords.h b/apt-pkg/indexrecords.h
index 277280620..414faceaa 100644
--- a/apt-pkg/indexrecords.h
+++ b/apt-pkg/indexrecords.h
@@ -12,6 +12,7 @@
 #include <apt-pkg/fileutl.h>
 
 #include <map>
+#include <vector>
 
 class indexRecords
 {
@@ -34,7 +35,8 @@ class indexRecords
 
    // Lookup function
    virtual const checkSum *Lookup(const string MetaKey);
-   
+   std::vector<std::string> MetaKeys();
+
    virtual bool Load(string Filename);
    string GetDist() const;
    virtual bool CheckDist(const string MaybeDist) const;
diff --git a/apt-pkg/makefile b/apt-pkg/makefile
index 41045f91a..5f48f0f52 100644
--- a/apt-pkg/makefile
+++ b/apt-pkg/makefile
@@ -13,7 +13,7 @@ include ../buildlib/defaults.mak
 # methods/makefile - FIXME
 LIBRARY=apt-pkg
 LIBEXT=$(GLIBC_VER)$(LIBSTDCPP_VER)
-MAJOR=3.8
+MAJOR=3.9
 MINOR=0
 SLIBS=$(PTHREADLIB) $(INTLLIBS)
 APT_DOMAIN:=libapt-pkg$(MAJOR)
@@ -34,14 +34,14 @@ SOURCE+= pkgcache.cc version.cc depcache.cc \
 	 acquire-worker.cc acquire-method.cc init.cc clean.cc \
 	 srcrecords.cc cachefile.cc versionmatch.cc policy.cc \
 	 pkgsystem.cc indexfile.cc pkgcachegen.cc acquire-item.cc \
-	 indexrecords.cc vendor.cc vendorlist.cc
+	 indexrecords.cc vendor.cc vendorlist.cc cdrom.cc indexcopy.cc
 HEADERS+= algorithms.h depcache.h pkgcachegen.h cacheiterators.h \
 	  orderlist.h sourcelist.h packagemanager.h tagfile.h \
 	  init.h pkgcache.h version.h progress.h pkgrecords.h \
 	  acquire.h acquire-worker.h acquire-item.h acquire-method.h \
 	  clean.h srcrecords.h cachefile.h versionmatch.h policy.h \
 	  pkgsystem.h indexfile.h metaindex.h indexrecords.h vendor.h \
-          vendorlist.h
+          vendorlist.h cdrom.h indexcopy.h
 
 # Source code for the debian specific components
 # In theory the deb headers do not need to be exported..