merge from the lp:~donkult/apt/sid branch

[apt.git] / apt-pkg / deb / dpkgpm.cc

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index f787f365e6ddb97a24fe99f1d8b83ae8d6f8dda6..fb6054f79446ce0db1359821fb557dcf3997b13e 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -49,6 +49,7 @@ namespace
     std::make_pair("install",   N_("Installing %s")),
     std::make_pair("configure", N_("Configuring %s")),
     std::make_pair("remove",    N_("Removing %s")),
     std::make_pair("install",   N_("Installing %s")),
     std::make_pair("configure", N_("Configuring %s")),
     std::make_pair("remove",    N_("Removing %s")),

+    std::make_pair("purge",    N_("Completely removing %s")),

     std::make_pair("trigproc",  N_("Running post-installation trigger %s"))
   };
 
     std::make_pair("trigproc",  N_("Running post-installation trigger %s"))
   };
 


@@ -134,8 +135,14 @@ bool pkgDPkgPM::Configure(PkgIterator Pkg)
 {
    if (Pkg.end() == true)
       return false;
 {
    if (Pkg.end() == true)
       return false;

-   
-   List.push_back(Item(Item::Configure,Pkg));
+
+   List.push_back(Item(Item::Configure, Pkg));
+
+   // Use triggers for config calls if we configure "smart"
+   // as otherwise Pre-Depends will not be satisfied, see #526774
+   if (_config->FindB("DPkg::TriggersPending", false) == true)
+      List.push_back(Item(Item::TriggersPending, PkgIterator()));
+

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


@@ -190,6 +197,9 @@ bool pkgDPkgPM::SendV2Pkgs(FILE *F)
    // Write out the package actions in order.
    for (vector<Item>::iterator I = List.begin(); I != List.end(); I++)
    {
    // Write out the package actions in order.
    for (vector<Item>::iterator I = List.begin(); I != List.end(); I++)
    {

+      if(I->Pkg.end() == true)
+        continue;
+

       pkgDepCache::StateCache &S = Cache[I->Pkg];
       
       fprintf(F,"%s ",I->Pkg.Name());
       pkgDepCache::StateCache &S = Cache[I->Pkg];
       
       fprintf(F,"%s ",I->Pkg.Name());


@@ -378,10 +388,11 @@ void pkgDPkgPM::DoTerminalPty(int master)
  */
 void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
 {
  */
 void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
 {

+   bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);

    // the status we output
    ostringstream status;
 
    // the status we output
    ostringstream status;
 

-   if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+   if (Debug == true)

       std::clog << "got from dpkg '" << line << "'" << std::endl;
 
 
       std::clog << "got from dpkg '" << line << "'" << std::endl;
 
 


@@ -396,6 +407,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
       'processing: install: pkg'
       'processing: configure: pkg'
       'processing: remove: pkg'
       'processing: install: pkg'
       'processing: configure: pkg'
       'processing: remove: pkg'

+      'processing: purge: pkg' - but for apt is it a ignored "unknown" action

       'processing: trigproc: trigger'
            
    */
       'processing: trigproc: trigger'
            
    */


@@ -408,28 +420,28 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
    TokSplitString(':', line, list, sizeof(list)/sizeof(list[0]));
    if( list[0] == NULL || list[1] == NULL || list[2] == NULL) 
    {
    TokSplitString(':', line, list, sizeof(list)/sizeof(list[0]));
    if( list[0] == NULL || list[1] == NULL || list[2] == NULL) 
    {

-      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+      if (Debug == true)

         std::clog << "ignoring line: not enough ':'" << std::endl;
       return;
    }
         std::clog << "ignoring line: not enough ':'" << std::endl;
       return;
    }

-   char *pkg = list[1];
-   char *action = _strstrip(list[2]);
+   const char* const pkg = list[1];
+   const char* action = _strstrip(list[2]);

 
    // 'processing' from dpkg looks like
    // 'processing: action: pkg'
    if(strncmp(list[0], "processing", strlen("processing")) == 0)
    {
       char s[200];
 
    // 'processing' from dpkg looks like
    // 'processing: action: pkg'
    if(strncmp(list[0], "processing", strlen("processing")) == 0)
    {
       char s[200];

-      char *pkg_or_trigger = _strstrip(list[2]);
-      action =_strstrip( list[1]);
+      const char* const pkg_or_trigger = _strstrip(list[2]);
+      action = _strstrip( list[1]);

       const std::pair<const char *, const char *> * const iter =
        std::find_if(PackageProcessingOpsBegin,
                     PackageProcessingOpsEnd,
                     MatchProcessingOp(action));
       if(iter == PackageProcessingOpsEnd)
       {
       const std::pair<const char *, const char *> * const iter =
        std::find_if(PackageProcessingOpsBegin,
                     PackageProcessingOpsEnd,
                     MatchProcessingOp(action));
       if(iter == PackageProcessingOpsEnd)
       {

-        if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-           std::clog << "ignoring unknwon action: " << action << std::endl;
+        if (Debug == true)
+           std::clog << "ignoring unknown action: " << action << std::endl;

         return;
       }
       snprintf(s, sizeof(s), _(iter->second), pkg_or_trigger);
         return;
       }
       snprintf(s, sizeof(s), _(iter->second), pkg_or_trigger);


@@ -440,7 +452,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());

-      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+      if (Debug == true)

         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }
         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }


@@ -453,11 +465,11 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());

-      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+      if (Debug == true)

         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }
         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }

-   if(strncmp(action,"conffile",strlen("conffile")) == 0)
+   else if(strncmp(action,"conffile",strlen("conffile")) == 0)

    {
       status << "pmconffile:" << list[1]
             << ":"  << (PackagesDone/float(PackagesTotal)*100.0) 
    {
       status << "pmconffile:" << list[1]
             << ":"  << (PackagesDone/float(PackagesTotal)*100.0) 


@@ -465,12 +477,12 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());

-      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+      if (Debug == true)

         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }
 
         std::clog << "send: '" << status.str() << "'" << endl;
       return;
    }
 

-   vector<struct DpkgState> &states = PackageOps[pkg];
+   vector<struct DpkgState> const &states = PackageOps[pkg];

    const char *next_action = NULL;
    if(PackageOpsDone[pkg] < states.size())
       next_action = states[PackageOpsDone[pkg]].state;
    const char *next_action = NULL;
    if(PackageOpsDone[pkg] < states.size())
       next_action = states[PackageOpsDone[pkg]].state;


@@ -493,15 +505,15 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());
             << endl;
       if(OutStatusFd > 0)
         write(OutStatusFd, status.str().c_str(), status.str().size());

-      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+      if (Debug == true)

         std::clog << "send: '" << status.str() << "'" << endl;
    }
         std::clog << "send: '" << status.str() << "'" << endl;
    }

-   if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) 
+   if (Debug == true) 

       std::clog << "(parsed from dpkg) pkg: " << pkg 
                << " action: " << action << endl;
 }
       std::clog << "(parsed from dpkg) pkg: " << pkg 
                << " action: " << action << endl;
 }

-
-// DPkgPM::DoDpkgStatusFd                                              /*{{{*/
+                                                                       /*}}}*/
+// DPkgPM::DoDpkgStatusFd                                              /*{{{*/

 // ---------------------------------------------------------------------
 /*
  */
 // ---------------------------------------------------------------------
 /*
  */


@@ -538,47 +550,107 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
    dpkgbuf_pos = dpkgbuf+dpkgbuf_pos-p;
 }
                                                                        /*}}}*/
    dpkgbuf_pos = dpkgbuf+dpkgbuf_pos-p;
 }
                                                                        /*}}}*/

-
+// DPkgPM::WriteHistoryTag                                             /*{{{*/
+void pkgDPkgPM::WriteHistoryTag(string tag, string value)
+{
+   if (value.size() > 0)
+   {
+      // poor mans rstrip(", ")
+      if (value[value.size()-2] == ',' && value[value.size()-1] == ' ')
+        value.erase(value.size() - 2, 2);
+      fprintf(history_out, "%s: %s\n", tag.c_str(), value.c_str());
+   }
+}                                                                      /*}}}*/
+// DPkgPM::OpenLog                                                     /*{{{*/

 bool pkgDPkgPM::OpenLog()
 {
    string logdir = _config->FindDir("Dir::Log");
    if(not FileExists(logdir))
       return _error->Error(_("Directory '%s' missing"), logdir.c_str());
 bool pkgDPkgPM::OpenLog()
 {
    string logdir = _config->FindDir("Dir::Log");
    if(not FileExists(logdir))
       return _error->Error(_("Directory '%s' missing"), logdir.c_str());

+
+   // get current time
+   char timestr[200];
+   time_t t = time(NULL);
+   struct tm *tmp = localtime(&t);
+   strftime(timestr, sizeof(timestr), "%F  %T", tmp);
+
+   // open terminal log

    string logfile_name = flCombine(logdir,
                                   _config->Find("Dir::Log::Terminal"));
    if (!logfile_name.empty())
    {
       term_out = fopen(logfile_name.c_str(),"a");
    string logfile_name = flCombine(logdir,
                                   _config->Find("Dir::Log::Terminal"));
    if (!logfile_name.empty())
    {
       term_out = fopen(logfile_name.c_str(),"a");

+      if (term_out == NULL)
+        return _error->WarningE(_("Could not open file '%s'"), logfile_name.c_str());
+

       chmod(logfile_name.c_str(), 0600);
       chmod(logfile_name.c_str(), 0600);

-      // output current time
-      char outstr[200];
-      time_t t = time(NULL);
-      struct tm *tmp = localtime(&t);
-      strftime(outstr, sizeof(outstr), "%F  %T", tmp);
-      fprintf(term_out, "\nLog started: ");
-      fprintf(term_out, "%s", outstr);
-      fprintf(term_out, "\n");
+      fprintf(term_out, "\nLog started: %s\n", timestr);

    }
    }

+
+   // write 
+   string history_name = flCombine(logdir,
+                                  _config->Find("Dir::Log::History"));
+   if (!history_name.empty())
+   {
+      history_out = fopen(history_name.c_str(),"a");
+      chmod(history_name.c_str(), 0644);
+      fprintf(history_out, "\nStart-Date: %s\n", timestr);
+      string remove, purge, install, upgrade, downgrade;
+      for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
+      {
+        if (Cache[I].NewInstall())
+           install += I.Name() + string(" (") + Cache[I].CandVersion + string("), ");
+        else if (Cache[I].Upgrade())
+           upgrade += I.Name() + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), ");
+        else if (Cache[I].Downgrade())
+           downgrade += I.Name() + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), ");
+        else if (Cache[I].Delete())
+        {
+           if ((Cache[I].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge)
+              purge += I.Name() + string(" (") + Cache[I].CurVersion + string("), ");      
+           else
+              remove += I.Name() + string(" (") + Cache[I].CurVersion + string("), ");     
+        }
+      }
+      WriteHistoryTag("Install", install);
+      WriteHistoryTag("Upgrade", upgrade);
+      WriteHistoryTag("Downgrade",downgrade);
+      WriteHistoryTag("Remove",remove);
+      WriteHistoryTag("Purge",purge);
+      fflush(history_out);
+   }
+   

    return true;
 }
    return true;
 }

-
+                                                                       /*}}}*/
+// DPkg::CloseLog                                                      /*{{{*/

 bool pkgDPkgPM::CloseLog()
 {
 bool pkgDPkgPM::CloseLog()
 {

+   char timestr[200];
+   time_t t = time(NULL);
+   struct tm *tmp = localtime(&t);
+   strftime(timestr, sizeof(timestr), "%F  %T", tmp);
+

    if(term_out)
    {
    if(term_out)
    {

-      char outstr[200];
-      time_t t = time(NULL);
-      struct tm *tmp = localtime(&t);
-      strftime(outstr, sizeof(outstr), "%F  %T", tmp);

       fprintf(term_out, "Log ended: ");
       fprintf(term_out, "Log ended: ");

-      fprintf(term_out, "%s", outstr);
+      fprintf(term_out, "%s", timestr);

       fprintf(term_out, "\n");
       fclose(term_out);
    }
    term_out = NULL;
       fprintf(term_out, "\n");
       fclose(term_out);
    }
    term_out = NULL;

+
+   if(history_out)
+   {
+      if (dpkg_error.size() > 0)
+        fprintf(history_out, "Error: %s\n", dpkg_error.c_str());
+      fprintf(history_out, "End-Date: %s\n", timestr);
+      fclose(history_out);
+   }
+

    return true;
 }
    return true;
 }

-
+                                                                       /*}}}*/

 /*{{{*/
 // This implements a racy version of pselect for those architectures
 // that don't have a working implementation.
 /*{{{*/
 // This implements a racy version of pselect for those architectures
 // that don't have a working implementation.


@@ -600,7 +672,6 @@ static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
    return retval;
 }
 /*}}}*/
    return retval;
 }
 /*}}}*/

-

 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This globs the operations and calls dpkg 
 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This globs the operations and calls dpkg 


@@ -617,9 +688,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    sigset_t sigmask;
    sigset_t original_sigmask;
 
    sigset_t sigmask;
    sigset_t original_sigmask;
 

-   unsigned int MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);   
-   unsigned int MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);
-   bool NoTriggers = _config->FindB("DPkg::NoTriggers",false);
+   unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);
+   unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);
+   bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);

 
    if (RunScripts("DPkg::Pre-Invoke") == false)
       return false;
 
    if (RunScripts("DPkg::Pre-Invoke") == false)
       return false;


@@ -627,6 +698,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
       return false;
 
    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
       return false;
 

+   // support subpressing of triggers processing for special
+   // cases like d-i that runs the triggers handling manually
+   bool const SmartConf = (_config->Find("PackageManager::Configure", "all") != "all");
+   bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false);
+   if (_config->FindB("DPkg::ConfigurePending", SmartConf) == true)
+      List.push_back(Item(Item::ConfigurePending, PkgIterator()));
+

    // map the dpkg states to the operations that are performed
    // (this is sorted in the same way as Item::Ops)
    static const struct DpkgState DpkgStatesOpMap[][7] = {
    // map the dpkg states to the operations that are performed
    // (this is sorted in the same way as Item::Ops)
    static const struct DpkgState DpkgStatesOpMap[][7] = {


@@ -662,16 +740,19 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    // that will be [installed|configured|removed|purged] and add
    // them to the PackageOps map (the dpkg states it goes through)
    // and the PackageOpsTranslations (human readable strings)
    // that will be [installed|configured|removed|purged] and add
    // them to the PackageOps map (the dpkg states it goes through)
    // and the PackageOpsTranslations (human readable strings)

-   for (vector<Item>::iterator I = List.begin(); I != List.end();I++)
+   for (vector<Item>::const_iterator I = List.begin(); I != List.end();I++)

    {
    {

-      string name = (*I).Pkg.Name();
+      if((*I).Pkg.end() == true)
+        continue;
+
+      string const name = (*I).Pkg.Name();

       PackageOpsDone[name] = 0;
       for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL;  i++) 
       {
         PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
         PackagesTotal++;
       }
       PackageOpsDone[name] = 0;
       for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL;  i++) 
       {
         PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
         PackagesTotal++;
       }

-   }   
+   }

 
    stdin_is_dev_null = false;
 
 
    stdin_is_dev_null = false;
 


@@ -679,11 +760,25 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    OpenLog();
 
    // this loop is runs once per operation
    OpenLog();
 
    // this loop is runs once per operation

-   for (vector<Item>::iterator I = List.begin(); I != List.end();)
+   for (vector<Item>::const_iterator I = List.begin(); I != List.end();)

    {
    {

-      vector<Item>::iterator J = I;
-      for (; J != List.end() && J->Op == I->Op; J++)
-        /* nothing */;
+      // Do all actions with the same Op in one run
+      vector<Item>::const_iterator J = I;
+      if (TriggersPending == true)
+        for (; J != List.end(); J++)
+        {
+           if (J->Op == I->Op)
+              continue;
+           if (J->Op != Item::TriggersPending)
+              break;
+           vector<Item>::const_iterator T = J + 1;
+           if (T != List.end() && T->Op == I->Op)
+              continue;
+           break;
+        }
+      else
+        for (; J != List.end() && J->Op == I->Op; J++)
+           /* nothing */;

 
       // Generate the argument list
       const char *Args[MaxArgs + 50];
 
       // Generate the argument list
       const char *Args[MaxArgs + 50];


@@ -700,7 +795,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       
       unsigned int n = 0;
       unsigned long Size = 0;
       
       unsigned int n = 0;
       unsigned long Size = 0;

-      string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+      string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg");

       Args[n++] = Tmp.c_str();
       Size += strlen(Args[n-1]);
       
       Args[n++] = Tmp.c_str();
       Size += strlen(Args[n-1]);
       


@@ -750,11 +845,23 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         
         case Item::Configure:
         Args[n++] = "--configure";
         
         case Item::Configure:
         Args[n++] = "--configure";

-        if (NoTriggers)
-           Args[n++] = "--no-triggers";

         Size += strlen(Args[n-1]);
         break;
         Size += strlen(Args[n-1]);
         break;

-        
+
+        case Item::ConfigurePending:
+        Args[n++] = "--configure";
+        Size += strlen(Args[n-1]);
+        Args[n++] = "--pending";
+        Size += strlen(Args[n-1]);
+        break;
+
+        case Item::TriggersPending:
+        Args[n++] = "--triggers-only";
+        Size += strlen(Args[n-1]);
+        Args[n++] = "--pending";
+        Size += strlen(Args[n-1]);
+        break;
+

         case Item::Install:
         Args[n++] = "--unpack";
         Size += strlen(Args[n-1]);
         case Item::Install:
         Args[n++] = "--unpack";
         Size += strlen(Args[n-1]);


@@ -762,7 +869,14 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         Size += strlen(Args[n-1]);
         break;
       }
         Size += strlen(Args[n-1]);
         break;
       }

-      
+
+      if (NoTriggers == true && I->Op != Item::TriggersPending &&
+         I->Op != Item::ConfigurePending)
+      {
+        Args[n++] = "--no-triggers";
+        Size += strlen(Args[n-1]);
+      }
+

       // Write in the file or package names
       if (I->Op == Item::Install)
       {
       // Write in the file or package names
       if (I->Op == Item::Install)
       {


@@ -778,6 +892,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       {
         for (;I != J && Size < MaxArgBytes; I++)
         {
       {
         for (;I != J && Size < MaxArgBytes; I++)
         {

+           if((*I).Pkg.end() == true)
+              continue;

            Args[n++] = I->Pkg.Name();
            Size += strlen(Args[n-1]);
         }       
            Args[n++] = I->Pkg.Name();
            Size += strlen(Args[n-1]);
         }       


@@ -809,32 +925,36 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
       struct   termios tt;
       struct   winsize win;
 
       struct   termios tt;
       struct   winsize win;

-      int      master;
-      int      slave;
+      int      master = -1;
+      int      slave = -1;

 
 

-      // FIXME: setup sensible signal handling (*ick*)
-      tcgetattr(0, &tt);
-      ioctl(0, TIOCGWINSZ, (char *)&win);
-      if (openpty(&master, &slave, NULL, &tt, &win) < 0) 
+      // if tcgetattr does not return zero there was a error
+      // and we do not do any pty magic
+      if (tcgetattr(0, &tt) == 0)

       {
       {

-        const char *s = _("Can not write log, openpty() "
-                          "failed (/dev/pts not mounted?)\n");
-        fprintf(stderr, "%s",s);
-        fprintf(term_out, "%s",s);
-        master = slave = -1;
-      }  else {
-        struct termios rtt;
-        rtt = tt;
-        cfmakeraw(&rtt);
-        rtt.c_lflag &= ~ECHO;
-        // block SIGTTOU during tcsetattr to prevent a hang if
-        // the process is a member of the background process group
-        // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
-        sigemptyset(&sigmask);
-        sigaddset(&sigmask, SIGTTOU);
-        sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask);
-        tcsetattr(0, TCSAFLUSH, &rtt);
-        sigprocmask(SIG_SETMASK, &original_sigmask, 0);
+        ioctl(0, TIOCGWINSZ, (char *)&win);
+        if (openpty(&master, &slave, NULL, &tt, &win) < 0) 
+        {
+           const char *s = _("Can not write log, openpty() "
+                             "failed (/dev/pts not mounted?)\n");
+           fprintf(stderr, "%s",s);
+            if(term_out)
+              fprintf(term_out, "%s",s);
+           master = slave = -1;
+        }  else {
+           struct termios rtt;
+           rtt = tt;
+           cfmakeraw(&rtt);
+           rtt.c_lflag &= ~ECHO;
+           // block SIGTTOU during tcsetattr to prevent a hang if
+           // the process is a member of the background process group
+           // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
+           sigemptyset(&sigmask);
+           sigaddset(&sigmask, SIGTTOU);
+           sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask);
+           tcsetattr(0, TCSAFLUSH, &rtt);
+           sigprocmask(SIG_SETMASK, &original_sigmask, 0);
+        }

       }
 
        // Fork dpkg
       }
 
        // Fork dpkg


@@ -913,11 +1033,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       int Status = 0;
 
       // we read from dpkg here
       int Status = 0;
 
       // we read from dpkg here

-      int _dpkgin = fd[0];
+      int const _dpkgin = fd[0];

       close(fd[1]);                        // close the write end of the pipe
 
       close(fd[1]);                        // close the write end of the pipe
 

-      // the result of the waitpid call
-      int res;

       if(slave > 0)
         close(slave);
 
       if(slave > 0)
         close(slave);
 


@@ -925,6 +1043,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       sigemptyset(&sigmask);
       sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
 
       sigemptyset(&sigmask);
       sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
 

+      // the result of the waitpid call
+      int res;

       int select_ret;
       while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
         if(res < 0) {
       int select_ret;
       while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
         if(res < 0) {


@@ -943,7 +1063,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
         // wait for input or output here
         FD_ZERO(&rfds);
 
         // wait for input or output here
         FD_ZERO(&rfds);

-        if (!stdin_is_dev_null)
+        if (master >= 0 && !stdin_is_dev_null)

            FD_SET(0, &rfds); 
         FD_SET(_dpkgin, &rfds);
         if(master >= 0)
            FD_SET(0, &rfds); 
         FD_SET(_dpkgin, &rfds);
         if(master >= 0)


@@ -991,17 +1111,20 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         // if it was set to "keep-dpkg-runing" then we won't return
         // here but keep the loop going and just report it as a error
         // for later
         // if it was set to "keep-dpkg-runing" then we won't return
         // here but keep the loop going and just report it as a error
         // for later

-        bool stopOnError = _config->FindB("Dpkg::StopOnError",true);
+        bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);

         
         if(stopOnError)
            RunScripts("DPkg::Post-Invoke");
 
         if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) 
         
         if(stopOnError)
            RunScripts("DPkg::Post-Invoke");
 
         if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) 

-           _error->Error("Sub-process %s received a segmentation fault.",Args[0]);
+           strprintf(dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);

         else if (WIFEXITED(Status) != 0)
         else if (WIFEXITED(Status) != 0)

-           _error->Error("Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
+           strprintf(dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));

         else 
         else 

-           _error->Error("Sub-process %s exited unexpectedly",Args[0]);
+           strprintf(dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
+
+        if(dpkg_error.size() > 0)
+           _error->Error(dpkg_error.c_str());

 
         if(stopOnError) 
         {
 
         if(stopOnError) 
         {