close server if parsing of header field failed

[apt.git] / cmdline / apt-cdrom.cc

diff --git a/cmdline/apt-cdrom.cc b/cmdline/apt-cdrom.cc
index fdd12ebdebb41475cc5946832b8704b19795ddc0..bac808a416e4beb2fe3a3451a8f61f586edea6d2 100644 (file)
--- a/cmdline/apt-cdrom.cc
+++ b/cmdline/apt-cdrom.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: apt-cdrom.cc,v 1.21 1999/04/07 05:57:04 jgg Exp $
+// $Id: apt-cdrom.cc,v 1.45 2003/11/19 23:50:51 mdz Exp $

 /* ######################################################################
    
    APT CDROM - Tool for handling APT's CDROM database.
 /* ######################################################################
    
    APT CDROM - Tool for handling APT's CDROM database.


@@ -11,1042 +11,226 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include<config.h>
+

 #include <apt-pkg/cmndline.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/init.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/progress.h>
 #include <apt-pkg/cmndline.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/init.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/progress.h>

-#include <apt-pkg/tagfile.h>

 #include <apt-pkg/cdromutl.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/cdromutl.h>
 #include <apt-pkg/strutl.h>

-#include <config.h>
+#include <apt-pkg/cdrom.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/pkgsystem.h>

 
 #include <iostream>
 
 #include <iostream>

-#include <fstream>

 #include <vector>
 #include <vector>

-#include <algorithm>
+#include <string>

 #include <sys/stat.h>
 #include <sys/stat.h>

-#include <fcntl.h>
-#include <dirent.h>

 #include <unistd.h>
 #include <unistd.h>

-#include <stdio.h>
-                                                                       /*}}}*/
-
-// 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 FindPackages(string CD,vector<string> &List,string &InfoDir,
-                 unsigned int Depth = 0)
-{
-   static ino_t Inodes[9];
-   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());
-
-   /* 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 */
-   struct stat Buf;
-   if (stat("Packages",&Buf) == 0) 
-   {
-      List.push_back(CD);
-      
-      // Continue down if thorough is given
-      if (_config->FindB("APT::CDROM::Thorough",false) == false)
-        return true;
-   }
+#include <apt-private/private-cmndline.h>
+#include <apt-private/private-output.h>
+#include <apt-private/private-main.h>

 
 

-   // Look for a .disk subdirectory
-   if (stat(".disk",&Buf) == 0)
-   {
-      if (InfoDir.empty() == true)
-        InfoDir = CD + ".disk/";
-   }
-   
-   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,"experimental") == 0 ||
-         strcmp(Dir->d_name,"binary-all") == 0)
-        continue;
+#include <apti18n.h>
+                                                                       /*}}}*/

 
 

-      // 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;
+using namespace std;

 
 

-      // Descend
-      if (FindPackages(CD + Dir->d_name,List,InfoDir,Depth+1) == false)
-        break;
+class pkgCdromTextStatus : public pkgCdromStatus                       /*{{{*/
+{
+protected:
+   OpTextProgress Progress;
+   void Prompt(const char *Text);
+   string PromptLine(const char *Text);
+   bool AskCdromName(string &name) APT_OVERRIDE;

 
 

-      if (chdir(CD.c_str()) != 0)
-        return _error->Errno("chdir","Unable to change to ",CD.c_str());
-   };
+public:
+   virtual void Update(string text, int current) APT_OVERRIDE;
+   virtual bool ChangeCdrom() APT_OVERRIDE;
+   virtual OpProgress* GetOpProgress() APT_OVERRIDE;
+};

 
 

-   closedir(D);
-   
-   return !_error->PendingError();
-}
-                                                                       /*}}}*/
-// DropBinaryArch - Dump dirs with a string like /binary-<foo>/                /*{{{*/
-// ---------------------------------------------------------------------
-/* Here we drop everything that is not this machines arch */
-bool DropBinaryArch(vector<string> &List)
+void pkgCdromTextStatus::Prompt(const char *Text)

 {
 {

-   char S[300];
-   sprintf(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;
+   char C;
+   cout << Text << ' ' << flush;
+   if (read(STDIN_FILENO,&C,1) < 0)
+      _error->Errno("pkgCdromTextStatus::Prompt",
+                    "Failed to read from standard input (not a terminal?)");
+   if (C != '\n')
+      cout << endl;

 }
 }

-                                                                       /*}}}*/
-// 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' 'frozen' will score
-   higher than ones without. */
-int Score(string Path)
+
+string pkgCdromTextStatus::PromptLine(const char *Text)

 {
 {

-   int Res = 0;
-   if (Path.find("stable/") != string::npos)
-      Res += 2;
-   if (Path.find("/binary-") != string::npos)
-      Res += 2;
-   if (Path.find("frozen/") != string::npos)
-      Res += 2;
-   if (Path.find("/dists/") != string::npos)
-      Res += 4;
-   if (Path.find("/main/") != string::npos)
-      Res += 2;
-   if (Path.find("/contrib/") != string::npos)
-      Res += 2;
-   if (Path.find("/non-free/") != string::npos)
-      Res += 2;
-   if (Path.find("/non-US/") != string::npos)
-      Res += 2;
+   cout << Text << ':' << endl;
+
+   string Res;
+   getline(cin,Res);

    return Res;
 }
    return Res;
 }

-                                                                       /*}}}*/
-// DropRepeats - Drop repeated files resulting from symlinks           /*{{{*/
-// ---------------------------------------------------------------------
-/* Here we go and stat every file that we found and strip dup inodes. */
-bool DropRepeats(vector<string> &List)
-{
-   // 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] + "Packages").c_str(),&Buf) != 0)
-        _error->Errno("stat","Failed to stat %sPackages",List[I].c_str());
-      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;
-}
-                                                                       /*}}}*/
-// ConvertToSourceList - Convert a Path to a sourcelist entry          /*{{{*/
-// ---------------------------------------------------------------------
-/* 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. */
-void ConvertToSourceList(string CD,string &Path)
-{
-   char S[300];
-   sprintf(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.begin(),Path.begin()+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 = Path.find('/',Slash2+1);
-   if (Slash == string::npos || Slash + 2 >= Path.length())
-      return;
-   string Comp = string(Path,Slash2+1,Slash - Slash2-1);
-   
-   // Verify the trailing binar - bit
-   Slash2 = Path.find('/',Slash + 1);
-   if (Slash == string::npos)
-      return;
-   string Binary = string(Path,Slash+1,Slash2 - Slash-1);
-   
-   if (Binary != S)
-      return;
-   
-   Path = Dist + ' ' + Comp;
-}
-                                                                       /*}}}*/
-// GrabFirst - Return the first Depth path components                  /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool GrabFirst(string Path,string &To,unsigned int Depth)
+bool pkgCdromTextStatus::AskCdromName(string &name)

 {
 {

-   string::size_type I = 0;
-   do
-   {
-      I = Path.find('/',I+1);
-      Depth--;
-   }
-   while (I != string::npos && Depth != 0);
-   
-   if (I == string::npos)
-      return false;
+   cout << _("Please provide a name for this Disc, such as 'Debian 5.0.3 Disk 1'") << flush;
+   name = PromptLine("");

 
 

-   To = string(Path,0,I+1);

    return true;
 }
    return true;
 }

-                                                                       /*}}}*/
-// ChopDirs - Chop off the leading directory components                        /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-string ChopDirs(string Path,unsigned int Depth)
+
+
+void pkgCdromTextStatus::Update(string text, int /*current*/)

 {
 {

-   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);
+   if(text.size() > 0)
+      cout << text << flush;

 }
 }

-                                                                       /*}}}*/
-// 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 ReconstructPrefix(string &Prefix,string OrigPath,string CD,
-                      string File)
+
+bool pkgCdromTextStatus::ChangeCdrom()

 {
 {

-   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;
+   Prompt(_("Please insert a Disc in the drive and press [Enter]"));
+   return true;

 }
 }

-                                                                       /*}}}*/
-// 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 ReconstructChop(unsigned long &Chop,string Dir,string File)
+
+APT_CONST OpProgress* pkgCdromTextStatus::GetOpProgress()

 {
 {

-   // 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;
+   return &Progress;

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-
-// CopyPackages - Copy the package files from the CD                   /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool CopyPackages(string CDROM,string Name,vector<string> &List)
+// AddOrIdent - Add or Ident a CDROM                                   /*{{{*/
+static bool AddOrIdent(bool const Add)

 {
 {

-   OpTextProgress Progress;
-   
-   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 + "Packages").c_str(),&Buf) != 0)
-        return _error->Errno("stat","Stat failed for %s",
-                             string(*I + "Packages").c_str());
-      TotalSize += Buf.st_size;
-   }   
+   pkgUdevCdromDevices UdevCdroms;
+   pkgCdromTextStatus log;
+   pkgCdrom cdrom;

 
 

-   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());
-      
-      // Open the package file
-      FileFd Pkg(*I + "Packages",FileFd::ReadOnly);
-      pkgTagFile Parser(Pkg);
-      if (_error->PendingError() == true)
-        return false;
-      
-      // Open the output file
-      char S[400];
-      sprintf(S,"cdrom:%s/%sPackages",Name.c_str(),(*I).c_str() + CDROM.length());
-      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);      
-      if (_error->PendingError() == true)
-        return false;
-      
-      // Setup the progress meter
-      Progress.OverallProgress(CurrentSize,TotalSize,Pkg.Size(),
-                              "Reading Package Lists");
+   bool oneSuccessful = false;
+   bool AutoDetect = _config->FindB("Acquire::cdrom::AutoDetect", true);
+   if (AutoDetect == true && UdevCdroms.Dlopen() == true)
+   {
+      bool const Debug = _config->FindB("Debug::Acquire::cdrom", false);
+      std::string const CDMount = _config->Find("Acquire::cdrom::mount");
+      bool const NoMount = _config->FindB("APT::CDROM::NoMount", false);
+      if (NoMount == false)
+        _config->Set("APT::CDROM::NoMount", true);

 
 

-      // Parse
-      Progress.SubProgress(Pkg.Size());
-      pkgTagSection Section;
-      string Prefix;
-      unsigned long Hits = 0;
-      unsigned long Chop = 0;
-      while (Parser.Step(Section) == true)
+      vector<struct CdromDevice> const v = UdevCdroms.Scan();
+      for (std::vector<struct CdromDevice>::const_iterator cd = v.begin(); cd != v.end(); ++cd)

       {
       {

-        Progress.Progress(Parser.Offset());
-        
-        string File = Section.FindS("Filename");
-        unsigned long Size = Section.FindI("Size");
-        if (File.empty() || Size == 0)
-           return _error->Error("Cannot find filename or size tag");
-        
-        if (Chop != 0)
-           File = OrigPath + ChopDirs(File,Chop);
-        
-        // See if the file exists
-        if (NoStat == false || Hits < 10)
+        if (Debug)
+           clog << "Looking at device:"
+              << "\tDeviveName: '" << cd->DeviceName << "'"
+              << "\tIsMounted: '" << cd->Mounted << "'"
+              << "\tMountPoint: '" << cd->MountPath << "'"
+              << endl;
+
+        std::string AptMountPoint;
+        if (cd->Mounted)
+           _config->Set("Acquire::cdrom::mount", cd->MountPath);
+        else if (NoMount == true)
+           continue;
+        else

         {
         {

-           // Attempt to fix broken structure
-           if (Hits == 0)
+           AptMountPoint = _config->FindDir("Dir::Media::MountPath");
+           if (FileExists(AptMountPoint) == false)
+              mkdir(AptMountPoint.c_str(), 0750);
+           if(MountCdrom(AptMountPoint, cd->DeviceName) == false)

            {
            {

-              if (ReconstructPrefix(Prefix,OrigPath,CDROM,File) == false &&
-                  ReconstructChop(Chop,*I,File) == false)
-              {
-                 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)
-           {
-              NotFound++;
-              continue;
-           }       
-                                           
-           // Size match
-           if ((unsigned)Buf.st_size != Size)
-           {
-              WrongSize++;
+              _error->Warning(_("Failed to mount '%s' to '%s'"), cd->DeviceName.c_str(), AptMountPoint.c_str());

               continue;
            }
               continue;
            }

+           _config->Set("Acquire::cdrom::mount", AptMountPoint);

         }
         }

-        
-        Packages++;
-        Hits++;
-        
-        // Copy it to the target package file
-        const char *Start;
-        const char *Stop;
-        if (Chop != 0)
-        {
-           // Mangle the output filename
-           const char *Filename;
-           Section.Find("Filename",Filename,Stop);
-           
-           /* We need to rewrite the filename field so we emit
-              all fields except the filename file and rewrite that one */
-           for (unsigned int I = 0; I != Section.Count(); I++)
-           {
-              Section.Get(Start,Stop,I);
-              if (Start <= Filename && Stop > Filename)
-              {
-                 char S[500];
-                 sprintf(S,"Filename: %s\n",File.c_str());
-                 if (I + 1 == Section.Count())
-                    strcat(S,"\n");
-                 if (Target.Write(S,strlen(S)) == false)
-                    return false;
-              }
-              else
-                 if (Target.Write(Start,Stop-Start) == false)
-                    return false;                
-           }
-           if (Target.Write("\n",1) == false)
-              return false;
-        }
-        else
-        {
-           Section.GetSection(Start,Stop);
-           if (Target.Write(Start,Stop-Start) == false)
-              return false;
-        }       
-      }
-
-      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");

 
 

-        // Copy the release file
-        sprintf(S,"cdrom:%s/%sRelease",Name.c_str(),(*I).c_str() + CDROM.length());
-        string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
-        TargetF += URItoFileName(S);
-        if (FileExists(*I + "Release") == true)
-        {
-           FileFd Target(TargetF,FileFd::WriteEmpty);
-           FileFd Rel(*I + "Release",FileFd::ReadOnly);
-           if (_error->PendingError() == true)
-              return false;
-           
-           if (CopyFile(Rel,Target) == false)
-              return false;
-        }
+        _error->PushToStack();
+        if (Add == true)
+           oneSuccessful = cdrom.Add(&log);

         else
         {
         else
         {

-           // Empty release file
-           FileFd Target(TargetF,FileFd::WriteEmpty);      
-        }       
-
-        // Rename the release file
-        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 += Pkg.Size();
-   }   
-   Progress.Done();
-   
-   // Some stats
-   cout << "Wrote " << Packages << " package records" ;
-   if (NotFound != 0)
-      cout << " with " << NotFound << " missing files";
-   if (NotFound != 0 && WrongSize != 0)
-      cout << " and"; 
-   if (WrongSize != 0)
-      cout << " with " << WrongSize << " mismatched files";
-   cout << '.' << endl;
-   
-   if (Packages == 0)
-      return _error->Error("No valid package records were found.");
-   
-   if (NotFound + WrongSize > 10)
-      cout << "Alot of package entires were discarded, perhaps this CD is funny?" << endl;
-
-   return true;
-}
-                                                                       /*}}}*/
+           std::string id;
+           oneSuccessful = cdrom.Ident(id, &log);
+        }
+        _error->MergeWithStack();

 
 

-// 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 */
-bool 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);
-      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,Space2,SSpace2-Space2) != Word1)
-           continue;
-        
-        *J += string(*I,SSpace);
-        *I = string();
+        if (AptMountPoint.empty() == false)
+           UnmountCdrom(AptMountPoint);

       }
       }

-   }   
+      if (NoMount == false)
+        _config->Set("APT::CDROM::NoMount", NoMount);
+      _config->Set("Acquire::cdrom::mount", CDMount);
+   }

 
 

-   // Wipe erased entries
-   for (unsigned int I = 0; I < List.size();)
+   // fallback if auto-detect didn't work
+   if (oneSuccessful == false)

    {
    {

-      if (List[I].empty() == false)
-        I++;
+      _error->PushToStack();
+      if (Add == true)
+        oneSuccessful = cdrom.Add(&log);

       else
       else

-        List.erase(List.begin()+I);
-   }
-}
-                                                                       /*}}}*/
-// WriteDatabase - Write the CDROM Database file                       /*{{{*/
-// ---------------------------------------------------------------------
-/* We rewrite the configuration class associated with the cdrom database. */
-bool 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;
+        std::string id;
+        oneSuccessful = cdrom.Ident(id, &log);

       }
       }

-      
-      while (Top != 0 && Top->Next == 0)
-        Top = Top->Parent;
-      if (Top != 0)
-        Top = Top->Next;
-   }   
+      _error->MergeWithStack();
+   }

 
 

-   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());
+   if (oneSuccessful == false)
+      _error->Error("%s", _("No CD-ROM could be auto-detected or found using the default mount point.\n"
+      "You may try the --cdrom option to set the CD-ROM mount point.\n"
+      "See 'man apt-cdrom' for more information about the CD-ROM auto-detection and mount point."));
+   else if (Add == true)
+      cout << _("Repeat this process for the rest of the CDs in your set.") << endl;

 
 

-   return true;
+   return oneSuccessful;

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-// WriteSourceList - Write an updated sourcelist                       /*{{{*/
+// DoAdd - Add a new CDROM                                             /*{{{*/

 // ---------------------------------------------------------------------
 // ---------------------------------------------------------------------

-/* 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 WriteSourceList(string Name,vector<string> &List)
+/* This does the main add bit.. We show some status and things. The
+   sequence is to mount/umount the CD, Ident it then scan it for package
+   files and reduce that list. Then we copy over the package files and
+   verify them. Then rewrite the database files */
+static bool DoAdd(CommandLine &)

 {
 {

-   string File = _config->FindFile("Dir::Etc::sourcelist");
-
-   // Open the stream for reading
-   ifstream F(File.c_str(),ios::in | ios::nocreate);
-   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 + "/";   
-   
-   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 << "deb \"cdrom:" << Name << "/" << string(*I,0,Space) << 
-              "\" " << string(*I,Space+1) << endl;
-        }
-      }
-      First = false;
-      
-      // Grok it
-      string Type;
-      string URI;
-      char *C = Buffer;
-      if (ParseQuoteWord(C,Type) == false ||
-         ParseQuoteWord(C,URI) == false)
-      {
-        Out << Buffer << endl;
-        continue;
-      }
-
-      // Emit lines like this one
-      if (Type != "deb" || string(URI,0,ShortURI.length()) != ShortURI)
-      {
-        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;
+   return AddOrIdent(true);

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-
-// Prompt - Simple prompt                                              /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-void Prompt(const char *Text)
+// DoIdent - Ident a CDROM                                             /*{{{*/
+static bool DoIdent(CommandLine &)

 {
 {

-   char C;
-   cout << Text << ' ' << flush;
-   read(STDIN_FILENO,&C,1);
-   if (C != '\n')
-      cout << endl;
+   return AddOrIdent(false);

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-// PromptLine - Prompt for an input line                               /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-string PromptLine(const char *Text)
+static bool ShowHelp(CommandLine &)                                    /*{{{*/

 {
 {

-   cout << Text << ':' << endl;
-   
-   string Res;
-   getline(cin,Res);
-   return Res;
-}
-                                                                       /*}}}*/
-
-// DoAdd - Add a new CDROM                                             /*{{{*/
-// ---------------------------------------------------------------------
-/* This does the main add bit.. We show some status and things. The
-   sequence is to mount/umount the CD, Ident it then scan it for package 
-   files and reduce that list. Then we copy over the package files and
-   verify them. Then rewrite the database files */
-bool DoAdd(CommandLine &)
-{
-   // Startup
-   string CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
-   if (CDROM[0] == '.')
-      CDROM= SafeGetCWD() + '/' + CDROM;
-   
-   cout << "Using CD-ROM mount point " << CDROM << endl;
-      
-   // 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)
-   {
-      cout << "Unmounting CD-ROM" << endl;
-      UnmountCdrom(CDROM);
-
-      // Mount the new CDROM
-      Prompt("Please insert a Disc in the drive and press enter");
-      cout << "Mounting CD-ROM" << endl;
-      if (MountCdrom(CDROM) == false)
-        return _error->Error("Failed to mount the cdrom.");
-   }
-   
-   // Hash the CD to get an ID
-   cout << "Identifying.. " << flush;
-   string ID;
-   if (IdentCdrom(CDROM,ID) == false)
-   {
-      cout << endl;
-      return false;
-   }
-   
-   cout << '[' << ID << ']' << endl;
-
-   cout << "Scanning Disc for index files..  " << flush;
-   // Get the CD structure
-   vector<string> List;
-   string StartDir = SafeGetCWD();
-   string InfoDir;
-   if (FindPackages(CDROM,List,InfoDir) == false)
-   {
-      cout << endl;
-      return false;
-   }
-   
-   chdir(StartDir.c_str());
-
-   if (_config->FindB("Debug::aptcdrom",false) == true)
-   {
-      cout << "I found:" << endl;
-      for (vector<string>::iterator I = List.begin(); I != List.end(); I++)
-      {
-        cout << *I << endl;
-      }      
-   }   
-   
-   // Fix up the list
-   DropBinaryArch(List);
-   DropRepeats(List);
-   cout << "Found " << List.size() << " package index files." << endl;
-
-   if (List.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(CDROM + InfoDir + "/info") == true)
-      {
-        ifstream F(string(CDROM + InfoDir + "/info").c_str());
-        if (!F == 0)
-           getline(F,Name);
-
-        if (Name.empty() == false)
-        {
-           cout << "Found label '" << Name << "'" << endl;
-           Database.Set("CD::" + ID + "::Label",Name);
-        }       
-      }
-      
-      if (_config->FindB("APT::CDROM::Rename",false) == true ||
-         Name.empty() == true)
-      {
-        cout << "Please provide a name for this Disc, such as 'Debian 2.1r1 Disk 1'";
-        while (1)
-        {
-           Name = PromptLine("");
-           if (Name.empty() == false &&
-               Name.find('"') == string::npos &&
-               Name.find(':') == string::npos &&
-               Name.find('/') == string::npos)
-              break;
-           cout << "That is not a valid name, try again " << endl;
-        }       
-      }      
-   }
-   else
-      Name = Database.Find("CD::" + ID);
-   
-   string::iterator J = Name.begin();
-   for (; J != Name.end(); J++)
-      if (*J == '/' || *J == '"' || *J == ':')
-        *J = '_';
-   
-   Database.Set("CD::" + ID,Name);
-   cout << "This Disc is called '" << Name << "'" << endl;
-   
-   // Copy the package files to the state directory
-   if (CopyPackages(CDROM,Name,List) == false)
-      return false;
-   
-   ReduceSourcelist(CDROM,List);
-
-   // Write the database and sourcelist
-   if (_config->FindB("APT::cdrom::NoAct",false) == false)
-   {
-      if (WriteDatabase(Database) == false)
-        return false;
-      
-      cout << "Writing new source list" << endl;
-      if (WriteSourceList(Name,List) == false)
-        return false;
-   }
-
-   // Print the sourcelist entries
-   cout << "Source List entries for this Disc are:" << endl;
-   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");
-
-      cout << "deb \"cdrom:" << Name << "/" << string(*I,0,Space) << 
-        "\" " << string(*I,Space+1) << endl;
-   }
-      
+   std::cout <<
+      _("Usage: apt-cdrom [options] command\n"
+      "\n"
+      "apt-cdrom is used to add CDROM's, USB flashdrives and other removable\n"
+      "media types as package sources to APT. The mount point and device\n"
+      "information is taken from apt.conf(5), udev(7) and fstab(5).\n");

    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

-
-// ShowHelp - Show the help screen                                     /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-int ShowHelp()
+static std::vector<aptDispatchWithHelp> GetCommands()                  /*{{{*/

 {
 {

-   cout << PACKAGE << ' ' << VERSION << " for " << ARCHITECTURE <<
-       " compiled on " << __DATE__ << "  " << __TIME__ << endl;
-   if (_config->FindB("version") == true)
-      return 100;
-   
-   cout << "Usage: apt-cdrom [options] command" << endl;
-   cout << endl;
-   cout << "apt-cdrom is a tool to add CDROM's to APT's source list. The " << endl;
-   cout << "CDROM mount point and device information is taken from apt.conf" << endl;
-   cout << "and /etc/fstab." << endl;
-   cout << endl;
-   cout << "Commands:" << endl;
-   cout << "   add - Add a CDROM" << endl;
-   cout << endl;
-   cout << "Options:" << endl;
-   cout << "  -h   This help text" << endl;
-   cout << "  -d   CD-ROM mount point" << endl;
-   cout << "  -r   Rename a recognized CD-ROM" << endl;
-   cout << "  -m   No mounting" << endl;
-   cout << "  -f   Fast mode, don't check package files" << endl;
-   cout << "  -a   Thorough scan mode" << endl;
-   cout << "  -c=? Read this configuration file" << endl;
-   cout << "  -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp" << endl;
-   cout << "See fstab(5)" << endl;
-   return 100;
+   return {
+      {"add", &DoAdd, "Add a CDROM"},
+      {"ident", &DoIdent, "Report the identity of a CDROM"},
+      {nullptr, nullptr, nullptr}
+   };

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-
-int main(int argc,const char *argv[])
+int main(int argc,const char *argv[])                                  /*{{{*/

 {
 {

-   CommandLine::Args Args[] = {
-      {'h',"help","help",0},
-      {'v',"version","version",0},
-      {'d',"cdrom","Acquire::cdrom::mount",CommandLine::HasArg},
-      {'r',"rename","APT::CDROM::Rename",0},
-      {'m',"no-mount","APT::CDROM::NoMount",0},
-      {'f',"fast","APT::CDROM::Fast",0},
-      {'n',"just-print","APT::CDROM::NoAct",0},
-      {'n',"recon","APT::CDROM::NoAct",0},      
-      {'n',"no-act","APT::CDROM::NoAct",0},
-      {'a',"thorough","APT::CDROM::Thorough",0},
-      {'c',"config-file",0,CommandLine::ConfigFile},
-      {'o',"option",0,CommandLine::ArbItem},
-      {0,0,0,0}};
-   CommandLine::Dispatch Cmds[] = {
-      {"add",&DoAdd},
-      {0,0}};
-        

    // Parse the command line and initialize the package library
    // Parse the command line and initialize the package library

-   CommandLine CmdL(Args,_config);
-   if (pkgInitialize(*_config) == false ||
-       CmdL.Parse(argc,argv) == false)
-   {
-      _error->DumpErrors();
-      return 100;
-   }
+   CommandLine CmdL;
+   auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_CDROM, &_config, &_system, argc, argv, &ShowHelp, &GetCommands);

 
 

-   // See if the help should be shown
-   if (_config->FindB("help") == true ||
-       CmdL.FileSize() == 0)
-      return ShowHelp();
-
-   // Deal with stdout not being a tty
-   if (ttyname(STDOUT_FILENO) == 0 && _config->FindI("quiet",0) < 1)
-      _config->Set("quiet","1");
-   
-   // Match the operation
-   CmdL.DispatchArg(Cmds);
+   InitOutput();

 
 

-   // Print any errors or warnings found during parsing
-   if (_error->empty() == false)
-   {
-      bool Errors = _error->PendingError();
-      _error->DumpErrors();
-      return Errors == true?100:0;
-   }
-   
-   return 0;
+   return DispatchCommandLine(CmdL, Cmds);

 }
 }

+                                                                       /*}}}*/