doc: Fix fuzzy string regression

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 19de440018ac752aaba98fb8b0a02a0135e5a8fb..c1b9a28f4ad1ecd3f363e313c94408db8d871a4a 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -1,80 +1,134 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $

 /* ######################################################################
 
    DPKG Package Manager - Provide an interface to dpkg
 /* ######################################################################
 
    DPKG Package Manager - Provide an interface to dpkg

-   
+

    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
 #include <config.h>
 
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
 #include <config.h>
 

-#include <apt-pkg/dpkgpm.h>
-#include <apt-pkg/error.h>
+#include <apt-pkg/cachefile.h>

 #include <apt-pkg/configuration.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/depcache.h>

-#include <apt-pkg/pkgrecords.h>
-#include <apt-pkg/strutl.h>
+#include <apt-pkg/dpkgpm.h>
+#include <apt-pkg/debsystem.h>
+#include <apt-pkg/error.h>

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

-#include <apt-pkg/cachefile.h>
+#include <apt-pkg/install-progress.h>

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

-#include <apt-pkg/iprogress.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>

 
 

-#include <unistd.h>
-#include <stdlib.h>
+#include <errno.h>

 #include <fcntl.h>
 #include <fcntl.h>

+#include <grp.h>
+#include <pwd.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>

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

-#include <sys/types.h>
+#include <sys/time.h>

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

-#include <signal.h>
-#include <errno.h>
-#include <string.h>
-#include <stdio.h>
-#include <string.h>
-#include <algorithm>
-#include <sstream>
-#include <map>
-#include <pwd.h>
-#include <grp.h>
-#include <iomanip>
-

 #include <termios.h>
 #include <termios.h>

+#include <time.h>

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

-#include <sys/ioctl.h>
-#include <pty.h>
+
+#include <algorithm>
+#include <array>
+#include <cstring>
+#include <iostream>
+#include <map>
+#include <set>
+#include <string>
+#include <utility>
+#include <vector>
+#include <sstream>
+#include <numeric>

 
 #include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
 
 
 #include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
 

-class pkgDPkgPMPrivate 
+APT_PURE static string AptHistoryRequestingUser()                      /*{{{*/
+{
+   const char* EnvKeys[]{"SUDO_UID", "PKEXEC_UID", "PACKAGEKIT_CALLER_UID"};
+
+   for (const auto &Key: EnvKeys)
+   {
+      if (getenv(Key) != nullptr)
+      {
+         int uid = atoi(getenv(Key));
+         if (uid > 0) {
+            struct passwd pwd;
+            struct passwd *result;
+            char buf[255];
+            if (getpwuid_r(uid, &pwd, buf, sizeof(buf), &result) == 0 && result != NULL) {
+               std::string res;
+               strprintf(res, "%s (%d)", pwd.pw_name, uid);
+               return res;
+            }
+         }
+      }
+   }
+   return "";
+}
+                                                                       /*}}}*/
+APT_PURE static unsigned int EnvironmentSize()                         /*{{{*/
+{
+  unsigned int size = 0;
+  char **envp = environ;
+
+  while (*envp != NULL)
+    size += strlen (*envp++) + 1;
+
+  return size;
+}
+                                                                       /*}}}*/
+class pkgDPkgPMPrivate                                                 /*{{{*/

 {
 public:
    pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),
 {
 public:
    pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),

-                       term_out(NULL), history_out(NULL), 
-                        last_reported_progress(0.0), progress(NULL)
+                       term_out(NULL), history_out(NULL),
+                       progress(NULL), tt_is_valid(false), master(-1),
+                       slave(NULL), protect_slave_from_dying(-1),
+                       direct_stdin(false)

    {
       dpkgbuf[0] = '\0';
    }
    ~pkgDPkgPMPrivate()
    {
    }
    {
       dpkgbuf[0] = '\0';
    }
    ~pkgDPkgPMPrivate()
    {
    }

-

    bool stdin_is_dev_null;
    // the buffer we use for the dpkg status-fd reading
    char dpkgbuf[1024];
    bool stdin_is_dev_null;
    // the buffer we use for the dpkg status-fd reading
    char dpkgbuf[1024];

-   int dpkgbuf_pos;
+   size_t dpkgbuf_pos;

    FILE *term_out;
    FILE *history_out;
    string dpkg_error;
    FILE *term_out;
    FILE *history_out;
    string dpkg_error;

-
-   float last_reported_progress;

    APT::Progress::PackageManager *progress;
    APT::Progress::PackageManager *progress;

-};

 
 

+   // pty stuff
+   struct termios tt;
+   bool tt_is_valid;
+   int master;
+   char * slave;
+   int protect_slave_from_dying;
+
+   // signals
+   sigset_t sigmask;
+   sigset_t original_sigmask;
+
+   bool direct_stdin;
+};
+                                                                       /*}}}*/

 namespace
 {
   // Maps the dpkg "processing" info to human readable names.  Entry 0
 namespace
 {
   // Maps the dpkg "processing" info to human readable names.  Entry 0


@@ -98,7 +152,7 @@ namespace
     const char *target;
 
   public:
     const char *target;
 
   public:

-    MatchProcessingOp(const char *the_target)
+    explicit MatchProcessingOp(const char *the_target)

       : target(the_target)
     {
     }
       : target(the_target)
     {
     }


@@ -110,13 +164,10 @@ namespace
   };
 }
 
   };
 }
 

-/* helper function to ionice the given PID 
-
- there is no C header for ionice yet - just the syscall interface
- so we use the binary from util-linux
-*/
-static bool
-ionice(int PID)
+// ionice - helper function to ionice the given PID                    /*{{{*/
+/* there is no C header for ionice yet - just the syscall interface
+   so we use the binary from util-linux */
+static bool ionice(int PID)

 {
    if (!FileExists("/usr/bin/ionice"))
       return false;
 {
    if (!FileExists("/usr/bin/ionice"))
       return false;


@@ -134,44 +185,23 @@ ionice(int PID)
    }
    return ExecWait(Process, "ionice");
 }
    }
    return ExecWait(Process, "ionice");
 }

-
-// dpkgChrootDirectory - chrooting for dpkg if needed                  /*{{{*/
-static void dpkgChrootDirectory()
-{
-   std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
-   if (chrootDir == "/")
-      return;
-   std::cerr << "Chrooting into " << chrootDir << std::endl;
-   if (chroot(chrootDir.c_str()) != 0)
-      _exit(100);
-   if (chdir("/") != 0)
-      _exit(100);
-}

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

-
-

 // FindNowVersion - Helper to find a Version in "now" state    /*{{{*/
 // ---------------------------------------------------------------------
 // FindNowVersion - Helper to find a Version in "now" state    /*{{{*/
 // ---------------------------------------------------------------------

-/* This is helpful when a package is no longer installed but has residual 
+/* This is helpful when a package is no longer installed but has residual

  * config files
  */
  * config files
  */

-static 
+static

 pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
 {
    pkgCache::VerIterator Ver;
    for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
 pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
 {
    pkgCache::VerIterator Ver;
    for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)

-   {
-      pkgCache::VerFileIterator Vf = Ver.FileList();
-      pkgCache::PkgFileIterator F = Vf.File();
-      for (F = Vf.File(); F.end() == false; ++F)
-      {
-         if (F && F.Archive())
-         {
-            if (strcmp(F.Archive(), "now")) 
-               return Ver;
-         }
-      }
-   }
+      for (pkgCache::VerFileIterator Vf = Ver.FileList(); Vf.end() == false; ++Vf)
+        for (pkgCache::PkgFileIterator F = Vf.File(); F.end() == false; ++F)
+        {
+           if (F.Archive() != 0 && strcmp(F.Archive(), "now") == 0)
+              return Ver;
+        }

    return Ver;
 }
                                                                        /*}}}*/
    return Ver;
 }
                                                                        /*}}}*/


@@ -179,10 +209,9 @@ pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 
-   : pkgPackageManager(Cache), PackagesDone(0), PackagesTotal(0)
+pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
+   : pkgPackageManager(Cache),d(new pkgDPkgPMPrivate()), pkgFailures(0), PackagesDone(0), PackagesTotal(0)

 {
 {

-   d = new pkgDPkgPMPrivate();

 }
                                                                        /*}}}*/
 // DPkgPM::pkgDPkgPM - Destructor                                      /*{{{*/
 }
                                                                        /*}}}*/
 // DPkgPM::pkgDPkgPM - Destructor                                      /*{{{*/


@@ -242,7 +271,7 @@ bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
 {
    if (Pkg.end() == true)
       return false;
 {
    if (Pkg.end() == true)
       return false;

-   
+

    if (Purge == true)
       List.push_back(Item(Item::Purge,Pkg));
    else
    if (Purge == true)
       List.push_back(Item(Item::Purge,Pkg));
    else


@@ -283,14 +312,14 @@ bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
         Top = Top->Child;
         continue;
       }
         Top = Top->Child;
         continue;
       }

-      
+

       while (Top != 0 && Top->Next == 0)
         Top = Top->Parent;
       if (Top != 0)
         Top = Top->Next;
       while (Top != 0 && Top->Next == 0)
         Top = Top->Parent;
       if (Top != 0)
         Top = Top->Next;

-   }   
+   }

    fprintf(F,"\n");
    fprintf(F,"\n");

- 
+

    // 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)
    {


@@ -298,7 +327,7 @@ bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
         continue;
 
       pkgDepCache::StateCache &S = Cache[I->Pkg];
         continue;
 
       pkgDepCache::StateCache &S = Cache[I->Pkg];

-      
+

       fprintf(F,"%s ",I->Pkg.Name());
 
       // Current version which we are going to replace
       fprintf(F,"%s ",I->Pkg.Name());
 
       // Current version which we are going to replace


@@ -353,13 +382,13 @@ bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
            fprintf(F,"**ERROR**\n");
         else
            fprintf(F,"%s\n",I->File.c_str());
            fprintf(F,"**ERROR**\n");
         else
            fprintf(F,"%s\n",I->File.c_str());

-      }      
+      }

       else if (I->Op == Item::Configure)
         fprintf(F,"**CONFIGURE**\n");
       else if (I->Op == Item::Remove ||
          I->Op == Item::Purge)
         fprintf(F,"**REMOVE**\n");
       else if (I->Op == Item::Configure)
         fprintf(F,"**CONFIGURE**\n");
       else if (I->Op == Item::Remove ||
          I->Op == Item::Purge)
         fprintf(F,"**REMOVE**\n");

-      
+

       if (ferror(F) != 0)
         return false;
    }
       if (ferror(F) != 0)
         return false;
    }


@@ -373,39 +402,53 @@ bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version)
    that are due to be installed. */
 bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 {
    that are due to be installed. */
 bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 {

+   bool result = true;
+

    Configuration::Item const *Opts = _config->Tree(Cnf);
    if (Opts == 0 || Opts->Child == 0)
       return true;
    Opts = Opts->Child;
    Configuration::Item const *Opts = _config->Tree(Cnf);
    if (Opts == 0 || Opts->Child == 0)
       return true;
    Opts = Opts->Child;

-   
+
+   sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN);
+

    unsigned int Count = 1;
    for (; Opts != 0; Opts = Opts->Next, Count++)
    {
       if (Opts->Value.empty() == true)
          continue;
 
    unsigned int Count = 1;
    for (; Opts != 0; Opts = Opts->Next, Count++)
    {
       if (Opts->Value.empty() == true)
          continue;
 

+      if(_config->FindB("Debug::RunScripts", false) == true)
+         std::clog << "Running external script with list of all .deb file: '"
+                   << Opts->Value << "'" << std::endl;
+

       // Determine the protocol version
       string OptSec = Opts->Value;
       string::size_type Pos;
       if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0)
         Pos = OptSec.length();
       OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos);
       // Determine the protocol version
       string OptSec = Opts->Value;
       string::size_type Pos;
       if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0)
         Pos = OptSec.length();
       OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos);

-      
+

       unsigned int Version = _config->FindI(OptSec+"::Version",1);
       unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);
       unsigned int Version = _config->FindI(OptSec+"::Version",1);
       unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);

-      
+

       // Create the pipes
       // Create the pipes

+      std::set<int> KeepFDs;
+      MergeKeepFdsFromConfiguration(KeepFDs);

       int Pipes[2];
       int Pipes[2];

-      if (pipe(Pipes) != 0)
-        return _error->Errno("pipe","Failed to create IPC pipe to subprocess");
+      if (pipe(Pipes) != 0) {
+         result = _error->Errno("pipe","Failed to create IPC pipe to subprocess");
+         break;
+      }

       if (InfoFD != (unsigned)Pipes[0])
         SetCloseExec(Pipes[0],true);
       else
       if (InfoFD != (unsigned)Pipes[0])
         SetCloseExec(Pipes[0],true);
       else

-        _config->Set("APT::Keep-Fds::", Pipes[0]);
+         KeepFDs.insert(Pipes[0]);
+
+

       SetCloseExec(Pipes[1],true);
 
       // Purified Fork for running the script
       SetCloseExec(Pipes[1],true);
 
       // Purified Fork for running the script

-      pid_t Process = ExecFork();
+      pid_t Process = ExecFork(KeepFDs);

       if (Process == 0)
       {
         // Setup the FDs
       if (Process == 0)
       {
         // Setup the FDs


@@ -418,7 +461,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
         strprintf(hookfd, "%d", InfoFD);
         setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
 
         strprintf(hookfd, "%d", InfoFD);
         setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
 

-        dpkgChrootDirectory();
+        debSystem::DpkgChrootDirectory();

         const char *Args[4];
         Args[0] = "/bin/sh";
         Args[1] = "-c";
         const char *Args[4];
         Args[0] = "/bin/sh";
         Args[1] = "-c";


@@ -427,13 +470,13 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
         execv(Args[0],(char **)Args);
         _exit(100);
       }
         execv(Args[0],(char **)Args);
         _exit(100);
       }

-      if (InfoFD == (unsigned)Pipes[0])
-        _config->Clear("APT::Keep-Fds", Pipes[0]);

       close(Pipes[0]);
       FILE *F = fdopen(Pipes[1],"w");
       close(Pipes[0]);
       FILE *F = fdopen(Pipes[1],"w");

-      if (F == 0)
-        return _error->Errno("fdopen","Faild to open new FD");
-      
+      if (F == 0) {
+         result = _error->Errno("fdopen","Failed to open new FD");
+         break;
+      }
+

       // Feed it the filenames.
       if (Version <= 1)
       {
       // Feed it the filenames.
       if (Version <= 1)
       {


@@ -446,7 +489,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
            // No errors here..
            if (I->File[0] != '/')
               continue;
            // No errors here..
            if (I->File[0] != '/')
               continue;

-           
+

            /* Feed the filename of each package that is pending install
               into the pipe. */
            fprintf(F,"%s\n",I->File.c_str());
            /* Feed the filename of each package that is pending install
               into the pipe. */
            fprintf(F,"%s\n",I->File.c_str());


@@ -458,23 +501,26 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
         SendPkgsInfo(F, Version);
 
       fclose(F);
         SendPkgsInfo(F, Version);
 
       fclose(F);

-      
+

       // Clean up the sub process
       // Clean up the sub process

-      if (ExecWait(Process,Opts->Value.c_str()) == false)
-        return _error->Error("Failure running script %s",Opts->Value.c_str());
+      if (ExecWait(Process,Opts->Value.c_str()) == false) {
+        result = _error->Error("Failure running script %s",Opts->Value.c_str());
+         break;
+      }

    }
    }

+   signal(SIGPIPE, old_sigpipe);

 
 

-   return true;
+   return result;

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

-// DPkgPM::DoStdin - Read stdin and pass to slave pty                  /*{{{*/
+// DPkgPM::DoStdin - Read stdin and pass to master pty                 /*{{{*/

 // ---------------------------------------------------------------------
 /*
 */
 void pkgDPkgPM::DoStdin(int master)
 {
    unsigned char input_buf[256] = {0,}; 
 // ---------------------------------------------------------------------
 /*
 */
 void pkgDPkgPM::DoStdin(int master)
 {
    unsigned char input_buf[256] = {0,}; 

-   ssize_t len = read(0, input_buf, sizeof(input_buf));
+   ssize_t len = read(STDIN_FILENO, input_buf, sizeof(input_buf));

    if (len)
       FileFd::Write(master, input_buf, len);
    else
    if (len)
       FileFd::Write(master, input_buf, len);
    else


@@ -499,46 +545,32 @@ void pkgDPkgPM::DoTerminalPty(int master)
       struct timespec sleepfor = { 0, 500000000 };
       nanosleep(&sleepfor, NULL);
       return;
       struct timespec sleepfor = { 0, 500000000 };
       nanosleep(&sleepfor, NULL);
       return;

-   }  
-   if(len <= 0) 
+   }
+   if(len <= 0)

       return;
    FileFd::Write(1, term_buf, len);
    if(d->term_out)
       fwrite(term_buf, len, sizeof(char), d->term_out);
 }
                                                                        /*}}}*/
       return;
    FileFd::Write(1, term_buf, len);
    if(d->term_out)
       fwrite(term_buf, len, sizeof(char), d->term_out);
 }
                                                                        /*}}}*/

-// DPkgPM::ProcessDpkgStatusBuf                                                /*{{{*/
-// ---------------------------------------------------------------------
-/*
- */
+// DPkgPM::ProcessDpkgStatusBuf                                                /*{{{*/

 void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
 {
    bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);
 void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
 {
    bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);

-

    if (Debug == true)
       std::clog << "got from dpkg '" << line << "'" << std::endl;
 
    if (Debug == true)
       std::clog << "got from dpkg '" << line << "'" << std::endl;
 

-

    /* dpkg sends strings like this:
       'status:   <pkg>: <pkg  qstate>'
       'status:   <pkg>:<arch>: <pkg  qstate>'
    /* dpkg sends strings like this:
       'status:   <pkg>: <pkg  qstate>'
       'status:   <pkg>:<arch>: <pkg  qstate>'

-      errors look like this:
-      'status: /var/cache/apt/archives/krecipes_0.8.1-0ubuntu1_i386.deb : error : trying to overwrite `/usr/share/doc/kde/HTML/en/krecipes/krectip.png', which is also in package krecipes-data 
-      and conffile-prompt like this
-      'status: conffile-prompt: conffile : 'current-conffile' 'new-conffile' useredited distedited
-      
-      Newer versions of dpkg sent also:
-      'processing: install: pkg'
-      'processing: configure: pkg'
-      'processing: remove: pkg'
-      'processing: purge: pkg'
-      'processing: disappear: pkg'
-      'processing: trigproc: trigger'
-           
+
+      'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: pkg'
+      'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: trigger'

    */
    */

+

    // we need to split on ": " (note the appended space) as the ':' is
    // part of the pkgname:arch information that dpkg sends
    // we need to split on ": " (note the appended space) as the ':' is
    // part of the pkgname:arch information that dpkg sends

-   // 
+   //

    // A dpkg error message may contain additional ":" (like
    //  "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..."
    // so we need to ensure to not split too much
    // A dpkg error message may contain additional ":" (like
    //  "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..."
    // so we need to ensure to not split too much


@@ -549,115 +581,187 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
         std::clog << "ignoring line: not enough ':'" << std::endl;
       return;
    }
         std::clog << "ignoring line: not enough ':'" << std::endl;
       return;
    }

-   // dpkg does not send always send "pkgname:arch" so we add it here if needed
-   std::string pkgname = list[1];
+
+   // build the (prefix, pkgname, action) tuple, position of this
+   // is different for "processing" or "status" messages
+   std::string prefix = APT::String::Strip(list[0]);
+   std::string pkgname;
+   std::string action;
+
+   // "processing" has the form "processing: action: pkg or trigger"
+   // with action = ["install", "upgrade", "configure", "remove", "purge",
+   //                "disappear", "trigproc"]
+   if (prefix == "processing")
+   {
+      pkgname = APT::String::Strip(list[2]);
+      action = APT::String::Strip(list[1]);
+      // we don't care for the difference (as dpkg doesn't really either)
+      if (action == "upgrade")
+        action = "install";
+   }
+   // "status" has the form: "status: pkg: state"
+   // with state in ["half-installed", "unpacked", "half-configured", 
+   //                "installed", "config-files", "not-installed"]
+   else if (prefix == "status")
+   {
+      pkgname = APT::String::Strip(list[1]);
+      action = APT::String::Strip(list[2]);
+   } else {
+      if (Debug == true)
+        std::clog << "unknown prefix '" << prefix << "'" << std::endl;
+      return;
+   }
+
+
+   /* handle the special cases first:
+
+      errors look like this:
+      'status: /var/cache/apt/archives/krecipes_0.8.1-0ubuntu1_i386.deb : error : trying to overwrite `/usr/share/doc/kde/HTML/en/krecipes/krectip.png', which is also in package krecipes-data 
+      and conffile-prompt like this
+      'status:/etc/compiz.conf/compiz.conf :  conffile-prompt: 'current-conffile' 'new-conffile' useredited distedited
+   */
+   if (prefix == "status")
+   {
+      if(action == "error")
+      {
+         d->progress->Error(pkgname, PackagesDone, PackagesTotal,
+                            list[3]);
+         pkgFailures++;
+         WriteApportReport(pkgname.c_str(), list[3].c_str());
+         return;
+      }
+      else if(action == "conffile-prompt")
+      {
+         d->progress->ConffilePrompt(pkgname, PackagesDone, PackagesTotal,
+                                     list[3]);
+         return;
+      }
+   }
+
+   // at this point we know that we should have a valid pkgname, so build all 
+   // the info from it
+
+   // dpkg does not always send "pkgname:arch" so we add it here if needed

    if (pkgname.find(":") == std::string::npos)
    {
    if (pkgname.find(":") == std::string::npos)
    {

-      // find the package in the group that is in a touched by dpkg
-      // if there are multiple dpkg will send us a full pkgname:arch
+      // find the package in the group that is touched by dpkg
+      // if there are multiple pkgs dpkg would send us a full pkgname:arch

       pkgCache::GrpIterator Grp = Cache.FindGrp(pkgname);
       pkgCache::GrpIterator Grp = Cache.FindGrp(pkgname);

-      if (Grp.end() == false) 
+      if (Grp.end() == false)

       {
       {

-          pkgCache::PkgIterator P = Grp.PackageList();
-          for (; P.end() != true; P = Grp.NextPkg(P))
-          {
-             if(Cache[P].Install() || Cache[P].ReInstall() || 
-                Cache[P].Upgrade() || Cache[P].Downgrade() ||
-                Cache[P].Delete() || Cache[P].Purge())
-              {
-                  pkgname = P.FullName();
-                  break;
-              }
-          }
+        pkgCache::PkgIterator P = Grp.PackageList();
+        for (; P.end() != true; P = Grp.NextPkg(P))
+        {
+           if(Cache[P].Keep() == false || Cache[P].ReInstall() == true)
+           {
+              pkgname = P.FullName();
+              break;
+           }
+        }

       }
    }
 
    const char* const pkg = pkgname.c_str();
       }
    }
 
    const char* const pkg = pkgname.c_str();

-   const char* action = list[2].c_str();
-   

    std::string short_pkgname = StringSplit(pkgname, ":")[0];
    std::string short_pkgname = StringSplit(pkgname, ":")[0];

-   std::string i18n_pkgname = short_pkgname;
+   std::string arch = "";

    if (pkgname.find(":") != string::npos)
    if (pkgname.find(":") != string::npos)

-   {
-      strprintf(i18n_pkgname, "%s (%s)", short_pkgname.c_str(),
-                StringSplit(pkgname, ":")[1].c_str());
-   }
+      arch = StringSplit(pkgname, ":")[1];
+   std::string i18n_pkgname = pkgname;
+   if (arch.size() != 0)
+      strprintf(i18n_pkgname, "%s (%s)", short_pkgname.c_str(), arch.c_str());

 
    // 'processing' from dpkg looks like
    // 'processing: action: pkg'
 
    // 'processing' from dpkg looks like
    // 'processing: action: pkg'

-   if(strncmp(list[0].c_str(), "processing", strlen("processing")) == 0)
+   if(prefix == "processing")

    {
    {

-      const char* const pkg_or_trigger = list[2].c_str();
-      action =  list[1].c_str();

       const std::pair<const char *, const char *> * const iter =
        std::find_if(PackageProcessingOpsBegin,
                     PackageProcessingOpsEnd,
       const std::pair<const char *, const char *> * const iter =
        std::find_if(PackageProcessingOpsBegin,
                     PackageProcessingOpsEnd,

-                    MatchProcessingOp(action));
+                    MatchProcessingOp(action.c_str()));

       if(iter == PackageProcessingOpsEnd)
       {
         if (Debug == true)
            std::clog << "ignoring unknown action: " << action << std::endl;
         return;
       }
       if(iter == PackageProcessingOpsEnd)
       {
         if (Debug == true)
            std::clog << "ignoring unknown action: " << action << std::endl;
         return;
       }

-      std::string pkg_action;
-      strprintf(pkg_action, _(iter->second), pkg_or_trigger);
-
-      d->progress->StatusChanged(pkg_or_trigger, PackagesDone, PackagesTotal,
-                                 pkg_action);
-      if (strncmp(action, "disappear", strlen("disappear")) == 0)
-        handleDisappearAction(pkg_or_trigger);
+      std::string msg;
+      strprintf(msg, _(iter->second), i18n_pkgname.c_str());
+      d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
+
+      // FIXME: this needs a muliarch testcase
+      // FIXME2: is "pkgname" here reliable with dpkg only sending us
+      //         short pkgnames?
+      if (action == "disappear")
+        handleDisappearAction(pkgname);

       return;
    }
 
       return;
    }
 

-   if(strncmp(action,"error",strlen("error")) == 0)
+   if (prefix == "status")

    {
    {

-      d->progress->Error(list[1], PackagesDone, PackagesTotal, list[3]);
-      pkgFailures++;
-      WriteApportReport(list[1].c_str(), list[3].c_str());
-      return;
-   }
-   else if(strncmp(action,"conffile",strlen("conffile")) == 0)
-   {
-      d->progress->ConffilePrompt(list[1], PackagesDone, PackagesTotal,
-                                  list[3]);
-      return;
-   }
+      std::vector<struct DpkgState> &states = PackageOps[pkg];
+      if (action == "triggers-pending")
+      {
+        if (Debug == true)
+           std::clog << "(parsed from dpkg) pkg: " << short_pkgname
+              << " action: " << action << " (prefix 2 to "
+              << PackageOpsDone[pkg] << " of " << states.size() << ")" << endl;

 
 

-   vector<struct DpkgState> const &states = PackageOps[pkg];
-   const char *next_action = NULL;
-   if(PackageOpsDone[pkg] < states.size())
-      next_action = states[PackageOpsDone[pkg]].state;
-   // check if the package moved to the next dpkg state
-   if(next_action && (strcmp(action, next_action) == 0)) 
-   {
-      // only read the translation if there is actually a next
-      // action
-      std::string translation;
-      strprintf(translation, _(states[PackageOpsDone[pkg]].str), 
-                i18n_pkgname.c_str());
-
-      // we moved from one dpkg state to a new one, report that
-      PackageOpsDone[pkg]++;
-      PackagesDone++;
-
-      // and send to the progress
-      d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal,
-                                 translation);
+        states.insert(states.begin(), {"installed", N_("Installed %s")});
+        states.insert(states.begin(), {"half-configured", N_("Configuring %s")});
+        PackagesTotal += 2;
+      }
+      else if(PackageOpsDone[pkg] < states.size())
+      {
+        char const * next_action = states[PackageOpsDone[pkg]].state;
+        if (next_action)
+        {
+           /*
+           if (action == "half-installed" && strcmp("half-configured", next_action) == 0 &&
+                 PackageOpsDone[pkg] + 2 < states.size() && action == states[PackageOpsDone[pkg] + 2].state)
+           {
+              if (Debug == true)
+                 std::clog << "(parsed from dpkg) pkg: " << short_pkgname << " action: " << action
+                    << " pending trigger defused by unpack" << std::endl;
+              // unpacking a package defuses the pending trigger
+              PackageOpsDone[pkg] += 2;
+              PackagesDone += 2;
+              next_action = states[PackageOpsDone[pkg]].state;
+           }
+           */
+           if (Debug == true)
+              std::clog << "(parsed from dpkg) pkg: " << short_pkgname
+                 << " action: " << action << " (expected: '" << next_action << "' "
+                 << PackageOpsDone[pkg] << " of " << states.size() << ")" << endl;
+
+           // check if the package moved to the next dpkg state
+           if(action == next_action)
+           {
+              // only read the translation if there is actually a next action
+              char const * const translation = _(states[PackageOpsDone[pkg]].str);
+
+              // we moved from one dpkg state to a new one, report that
+              ++PackageOpsDone[pkg];
+              ++PackagesDone;
+
+              std::string msg;
+              strprintf(msg, translation, i18n_pkgname.c_str());
+              d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
+           }
+        }
+      }

    }
    }

-   if (Debug == true) 
-      std::clog << "(parsed from dpkg) pkg: " << pkgname
-               << " action: " << action << endl;

 }
                                                                        /*}}}*/
 // DPkgPM::handleDisappearAction                                       /*{{{*/
 void pkgDPkgPM::handleDisappearAction(string const &pkgname)
 {
 }
                                                                        /*}}}*/
 // DPkgPM::handleDisappearAction                                       /*{{{*/
 void pkgDPkgPM::handleDisappearAction(string const &pkgname)
 {

-   // record the package name for display and stuff later
-   disappearedPkgs.insert(pkgname);
-

    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (unlikely(Pkg.end() == true))
       return;
    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (unlikely(Pkg.end() == true))
       return;

+
+   // record the package name for display and stuff later
+   disappearedPkgs.insert(Pkg.FullName(true));
+

    // the disappeared package was auto-installed - nothing to do
    if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
       return;
    // the disappeared package was auto-installed - nothing to do
    if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
       return;


@@ -697,40 +801,33 @@ void pkgDPkgPM::handleDisappearAction(string const &pkgname)
 }
                                                                        /*}}}*/
 // DPkgPM::DoDpkgStatusFd                                              /*{{{*/
 }
                                                                        /*}}}*/
 // DPkgPM::DoDpkgStatusFd                                              /*{{{*/

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

 void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
 {
 void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
 {

-   char *p, *q;
-   int len;
-
-   len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
-   d->dpkgbuf_pos += len;
+   ssize_t const len = read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos],
+        (sizeof(d->dpkgbuf)/sizeof(d->dpkgbuf[0])) - d->dpkgbuf_pos);

    if(len <= 0)
       return;
    if(len <= 0)
       return;

+   d->dpkgbuf_pos += (len / sizeof(d->dpkgbuf[0]));

 
 

-   // process line by line if we have a buffer
-   p = q = d->dpkgbuf;
-   while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
+   // process line by line from the buffer
+   char *p = d->dpkgbuf, *q = nullptr;
+   while((q=(char*)memchr(p, '\n', (d->dpkgbuf + d->dpkgbuf_pos) - p)) != nullptr)

    {
    {

-      *q = 0;
+      *q = '\0';

       ProcessDpkgStatusLine(p);
       ProcessDpkgStatusLine(p);

-      p=q+1; // continue with next line
+      p = q + 1; // continue with next line

    }
 
    }
 

-   // now move the unprocessed bits (after the final \n that is now a 0x0) 
-   // to the start and update d->dpkgbuf_pos
-   p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
-   if(p == NULL)
+   // check if we stripped the buffer clean
+   if (p > (d->dpkgbuf + d->dpkgbuf_pos))
+   {
+      d->dpkgbuf_pos = 0;

       return;
       return;

+   }

 
 

-   // we are interessted in the first char *after* 0x0
-   p++;
-
-   // move the unprocessed tail to the start and update pos
-   memmove(d->dpkgbuf, p, p-d->dpkgbuf);
-   d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
+   // otherwise move the unprocessed tail to the start and update pos
+   memmove(d->dpkgbuf, p, (p - d->dpkgbuf));
+   d->dpkgbuf_pos = (d->dpkgbuf + d->dpkgbuf_pos) - p;

 }
                                                                        /*}}}*/
 // DPkgPM::WriteHistoryTag                                             /*{{{*/
 }
                                                                        /*}}}*/
 // DPkgPM::WriteHistoryTag                                             /*{{{*/


@@ -755,7 +852,8 @@ bool pkgDPkgPM::OpenLog()
    // get current time
    char timestr[200];
    time_t const t = time(NULL);
    // get current time
    char timestr[200];
    time_t const t = time(NULL);

-   struct tm const * const tmp = localtime(&t);
+   struct tm tm_buf;
+   struct tm const * const tmp = localtime_r(&t, &tm_buf);

    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 
    // open terminal log
    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 
    // open terminal log


@@ -825,6 +923,9 @@ bool pkgDPkgPM::OpenLog()
       }
       if (_config->Exists("Commandline::AsString") == true)
         WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
       }
       if (_config->Exists("Commandline::AsString") == true)
         WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));

+      std::string RequestingUser = AptHistoryRequestingUser();
+      if (RequestingUser != "")
+         WriteHistoryTag("Requested-By", RequestingUser);

       WriteHistoryTag("Install", install);
       WriteHistoryTag("Reinstall", reinstall);
       WriteHistoryTag("Upgrade", upgrade);
       WriteHistoryTag("Install", install);
       WriteHistoryTag("Reinstall", reinstall);
       WriteHistoryTag("Upgrade", upgrade);


@@ -833,7 +934,7 @@ bool pkgDPkgPM::OpenLog()
       WriteHistoryTag("Purge",purge);
       fflush(d->history_out);
    }
       WriteHistoryTag("Purge",purge);
       fflush(d->history_out);
    }

-   
+

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


@@ -842,7 +943,8 @@ bool pkgDPkgPM::CloseLog()
 {
    char timestr[200];
    time_t t = time(NULL);
 {
    char timestr[200];
    time_t t = time(NULL);

-   struct tm *tmp = localtime(&t);
+   struct tm tm_buf;
+   struct tm *tmp = localtime_r(&t, &tm_buf);

    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 
    if(d->term_out)
    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 
    if(d->term_out)


@@ -881,99 +983,269 @@ bool pkgDPkgPM::CloseLog()
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

-// This implements a racy version of pselect for those architectures
-// that don't have a working implementation.
-// FIXME: Probably can be removed on Lenny+1
-static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
-   fd_set *exceptfds, const struct timespec *timeout,
-   const sigset_t *sigmask)
+
+// DPkgPM::BuildPackagesProgressMap                                    /*{{{*/
+void pkgDPkgPM::BuildPackagesProgressMap()

 {
 {

-   sigset_t origmask;
-   struct timeval tv;
-   int retval;
+   // map the dpkg states to the operations that are performed
+   // (this is sorted in the same way as Item::Ops)
+   static const std::array<std::array<DpkgState, 3>, 4> DpkgStatesOpMap = {{
+      // Install operation
+      {{
+        {"half-installed", N_("Preparing %s")},
+        {"unpacked", N_("Unpacking %s") },
+        {nullptr, nullptr}
+      }},
+      // Configure operation
+      {{
+        {"unpacked",N_("Preparing to configure %s") },
+        {"half-configured", N_("Configuring %s") },
+        { "installed", N_("Installed %s")},
+      }},
+      // Remove operation
+      {{
+        {"half-configured", N_("Preparing for removal of %s")},
+        {"half-installed", N_("Removing %s")},
+        {"config-files",  N_("Removed %s")},
+      }},
+      // Purge operation
+      {{
+        {"config-files", N_("Preparing to completely remove %s")},
+        {"not-installed", N_("Completely removed %s")},
+        {nullptr, nullptr}
+      }},
+   }};
+   static_assert(Item::Purge == 3, "Enum item has unexpected index for mapping array");

 
 

-   tv.tv_sec = timeout->tv_sec;
-   tv.tv_usec = timeout->tv_nsec/1000;
+   // init the PackageOps map, go over the list of packages that
+   // 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 (auto &&I : List)
+   {
+      if(I.Pkg.end() == true)
+        continue;

 
 

-   sigprocmask(SIG_SETMASK, sigmask, &origmask);
-   retval = select(nfds, readfds, writefds, exceptfds, &tv);
-   sigprocmask(SIG_SETMASK, &origmask, 0);
-   return retval;
+      string const name = I.Pkg.FullName();
+      PackageOpsDone[name] = 0;
+      auto AddToPackageOps = std::back_inserter(PackageOps[name]);
+      if (I.Op == Item::Purge && I.Pkg->CurrentVer != 0)
+      {
+        // purging a package which is installed first passes through remove states
+        auto const DpkgOps = DpkgStatesOpMap[Item::Remove];
+        std::copy(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps);
+        PackagesTotal += DpkgOps.size();
+      }
+      auto const DpkgOps = DpkgStatesOpMap[I.Op];
+      std::copy_if(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps, [&](DpkgState const &state) {
+        if (state.state == nullptr)
+           return false;
+        ++PackagesTotal;
+        return true;
+      });
+   }
+   /* one extra: We don't want the progress bar to reach 100%, especially not
+      if we call dpkg --configure --pending and process a bunch of triggers
+      while showing 100%. Also, spindown takes a while, so never reaching 100%
+      is way more correct than reaching 100% while still doing stuff even if
+      doing it this way is slightly bending the rules */
+   ++PackagesTotal;

 }
 }

-/*}}}*/
-
+                                                                        /*}}}*/
+bool pkgDPkgPM::Go(int StatusFd)                                       /*{{{*/
+{
+   APT::Progress::PackageManager *progress = NULL;
+   if (StatusFd == -1)
+      progress = APT::Progress::PackageManagerProgressFactory();
+   else
+      progress = new APT::Progress::PackageManagerProgressFd(StatusFd);

 
 

-// DPkgPM::Go - Run the sequence                                       /*{{{*/
-// ---------------------------------------------------------------------
-/* This globs the operations and calls dpkg 
- *   
- * If it is called with a progress object apt will report the install
- * progress to this object. It maps the dpkg states a package goes
- * through to human readable (and i10n-able)
- * names and calculates a percentage for each step.
-*/
-bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
+   return Go(progress);
+}
+                                                                       /*}}}*/
+void pkgDPkgPM::StartPtyMagic()                                                /*{{{*/

 {
 {

-   pkgPackageManager::SigINTStop = false;
-   d->progress = progress;
+   if (_config->FindB("Dpkg::Use-Pty", true) == false)
+   {
+      d->master = -1;
+      if (d->slave != NULL)
+        free(d->slave);
+      d->slave = NULL;
+      return;
+   }

 
 

-   // Generate the base argument list for dpkg
-   std::vector<const char *> Args;
-   unsigned long StartSize = 0;
-   string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+   if (isatty(STDIN_FILENO) == 0)
+      d->direct_stdin = true;
+
+   _error->PushToStack();
+
+   d->master = posix_openpt(O_RDWR | O_NOCTTY);
+   if (d->master == -1)
+      _error->Errno("posix_openpt", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
+   else if (unlockpt(d->master) == -1)
+      _error->Errno("unlockpt", "Unlocking the slave of master fd %d failed!", d->master);
+   else

    {
    {

-      string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
-      size_t dpkgChrootLen = dpkgChrootDir.length();
-      if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
+#ifdef HAVE_PTS_NAME_R
+      char slave_name[64];     // 64 is used by bionic
+      if (ptsname_r(d->master, slave_name, sizeof(slave_name)) != 0)
+#else
+      char const * const slave_name = ptsname(d->master);
+      if (slave_name == NULL)
+#endif
+        _error->Errno("ptsname", "Getting name for slave of master fd %d failed!", d->master);
+      else

       {
       {

-        if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
-           --dpkgChrootLen;
-        Tmp = Tmp.substr(dpkgChrootLen);
+        d->slave = strdup(slave_name);
+        if (d->slave == NULL)
+           _error->Errno("strdup", "Copying name %s for slave of master fd %d failed!", slave_name, d->master);
+        else if (grantpt(d->master) == -1)
+           _error->Errno("grantpt", "Granting access to slave %s based on master fd %d failed!", slave_name, d->master);
+        else if (tcgetattr(STDIN_FILENO, &d->tt) == 0)
+        {
+           d->tt_is_valid = true;
+           struct termios raw_tt;
+           // copy window size of stdout if its a 'good' terminal
+           if (tcgetattr(STDOUT_FILENO, &raw_tt) == 0)
+           {
+              struct winsize win;
+              if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) < 0)
+                 _error->Errno("ioctl", "Getting TIOCGWINSZ from stdout failed!");
+              if (ioctl(d->master, TIOCSWINSZ, &win) < 0)
+                 _error->Errno("ioctl", "Setting TIOCSWINSZ for master fd %d failed!", d->master);
+           }
+           if (tcsetattr(d->master, TCSANOW, &d->tt) == -1)
+              _error->Errno("tcsetattr", "Setting in Start via TCSANOW for master fd %d failed!", d->master);
+
+           raw_tt = d->tt;
+           cfmakeraw(&raw_tt);
+           raw_tt.c_lflag &= ~ECHO;
+           raw_tt.c_lflag |= ISIG;
+           // 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(&d->sigmask);
+           sigaddset(&d->sigmask, SIGTTOU);
+           sigprocmask(SIG_BLOCK,&d->sigmask, &d->original_sigmask);
+           if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1)
+              _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdin failed!");
+           sigprocmask(SIG_SETMASK, &d->original_sigmask, NULL);
+
+        }
+        if (d->slave != NULL)
+        {
+           /* on linux, closing (and later reopening) all references to the slave
+              makes the slave a death end, so we open it here to have one open all
+              the time. We could use this fd in SetupSlavePtyMagic() for linux, but
+              on kfreebsd we get an incorrect ("step like") output then while it has
+              no problem with closing all references… so to avoid platform specific
+              code here we combine both and be happy once more */
+           d->protect_slave_from_dying = open(d->slave, O_RDWR | O_CLOEXEC | O_NOCTTY);
+        }

       }
    }
       }
    }

-   Args.push_back(Tmp.c_str());
-   StartSize += Tmp.length();

 
 

-   // Stick in any custom dpkg options
-   Configuration::Item const *Opts = _config->Tree("DPkg::Options");
-   if (Opts != 0)
+   if (_error->PendingError() == true)

    {
    {

-      Opts = Opts->Child;
-      for (; Opts != 0; Opts = Opts->Next)
+      if (d->master != -1)

       {
       {

-        if (Opts->Value.empty() == true)
-           continue;
-        Args.push_back(Opts->Value.c_str());
-        StartSize += Opts->Value.length();
+        close(d->master);
+        d->master = -1;

       }
       }

+      if (d->slave != NULL)
+      {
+        free(d->slave);
+        d->slave = NULL;
+      }
+      _error->DumpErrors(std::cerr, GlobalError::DEBUG, false);

    }
    }

+   _error->RevertToStack();
+}
+                                                                       /*}}}*/
+void pkgDPkgPM::SetupSlavePtyMagic()                                   /*{{{*/
+{
+   if(d->master == -1 || d->slave == NULL)
+      return;

 
 

-   size_t const BaseArgs = Args.size();
-   // we need to detect if we can qualify packages with the architecture or not
-   Args.push_back("--assert-multi-arch");
-   Args.push_back(NULL);
+   if (close(d->master) == -1)
+      _error->FatalE("close", "Closing master %d in child failed!", d->master);
+   d->master = -1;
+   if (setsid() == -1)
+      _error->FatalE("setsid", "Starting a new session for child failed!");
+
+   int const slaveFd = open(d->slave, O_RDWR | O_NOCTTY);
+   if (slaveFd == -1)
+      _error->FatalE("open", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
+   else if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
+      _error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd);
+   else
+   {
+      unsigned short i = 0;
+      if (d->direct_stdin == true)
+        ++i;
+      for (; i < 3; ++i)
+        if (dup2(slaveFd, i) == -1)
+           _error->FatalE("dup2", "Dupping %d to %d in child failed!", slaveFd, i);
+
+      if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSANOW, &d->tt) < 0)
+        _error->FatalE("tcsetattr", "Setting in Setup via TCSANOW for slave fd %d failed!", slaveFd);
+   }

 
 

-   pid_t dpkgAssertMultiArch = ExecFork();
-   if (dpkgAssertMultiArch == 0)
+   if (slaveFd != -1)
+      close(slaveFd);
+}
+                                                                       /*}}}*/
+void pkgDPkgPM::StopPtyMagic()                                         /*{{{*/
+{
+   if (d->slave != NULL)
+      free(d->slave);
+   d->slave = NULL;
+   if (d->protect_slave_from_dying != -1)
+   {
+      close(d->protect_slave_from_dying);
+      d->protect_slave_from_dying = -1;
+   }
+   if(d->master >= 0)

    {
    {

-      dpkgChrootDirectory();
-      // redirect everything to the ultimate sink as we only need the exit-status
-      int const nullfd = open("/dev/null", O_RDONLY);
-      dup2(nullfd, STDIN_FILENO);
-      dup2(nullfd, STDOUT_FILENO);
-      dup2(nullfd, STDERR_FILENO);
-      execvp(Args[0], (char**) &Args[0]);
-      _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
-      _exit(2);
+      if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSAFLUSH, &d->tt) == -1)
+        _error->FatalE("tcsetattr", "Setting in Stop via TCSAFLUSH for stdin failed!");
+      close(d->master);
+      d->master = -1;

    }
    }

+}
+
+// DPkgPM::Go - Run the sequence                                       /*{{{*/
+// ---------------------------------------------------------------------
+/* This globs the operations and calls dpkg
+ *
+ * If it is called with a progress object apt will report the install
+ * progress to this object. It maps the dpkg states a package goes
+ * through to human readable (and i10n-able)
+ * names and calculates a percentage for each step.
+ */
+bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
+{
+   pkgPackageManager::SigINTStop = false;
+   d->progress = progress;
+
+   // Generate the base argument list for dpkg
+   std::vector<std::string> const sArgs = debSystem::GetDpkgBaseCommand();
+   std::vector<const char *> Args(sArgs.size(), NULL);
+   std::transform(sArgs.begin(), sArgs.end(), Args.begin(),
+        [](std::string const &s) { return s.c_str(); });
+   unsigned long long const StartSize = std::accumulate(sArgs.begin(), sArgs.end(), 0llu,
+        [](unsigned long long const i, std::string const &s) { return i + s.length(); });
+   size_t const BaseArgs = Args.size();

 
    fd_set rfds;
    struct timespec tv;
 
    fd_set rfds;
    struct timespec tv;

-   sigset_t sigmask;
-   sigset_t original_sigmask;

 
 

-   unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);
-   unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);
+   // try to figure out the max environment size
+   int OSArgMax = sysconf(_SC_ARG_MAX);
+   if(OSArgMax < 0)
+      OSArgMax = 32*1024;
+   OSArgMax -= EnvironmentSize() - 2*1024;
+   unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes", OSArgMax);

    bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);
 
    if (RunScripts("DPkg::Pre-Invoke") == false)
    bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);
 
    if (RunScripts("DPkg::Pre-Invoke") == false)


@@ -982,60 +1254,31 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
       return false;
 
    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
       return false;
 

+   auto const noopDPkgInvocation = _config->FindB("Debug::pkgDPkgPM",false);
+   // store auto-bits as they are supposed to be after dpkg is run
+   if (noopDPkgInvocation == false)
+      Cache.writeStateFile(NULL);
+
+   decltype(List)::const_iterator::difference_type const notconfidx =
+      _config->FindB("Dpkg::ExplicitLastConfigure", false) ? std::numeric_limits<decltype(notconfidx)>::max() :
+      std::distance(List.cbegin(), std::find_if_not(List.crbegin(), List.crend(), [](Item const &i) { return i.Op == Item::Configure; }).base());
+

    // support subpressing of triggers processing for special
    // cases like d-i that runs the triggers handling manually
    // 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);
    bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false);

-   if (_config->FindB("DPkg::ConfigurePending", SmartConf) == true)
+   bool const ConfigurePending = _config->FindB("DPkg::ConfigurePending", true);
+   if (ConfigurePending)

       List.push_back(Item(Item::ConfigurePending, PkgIterator()));
 
       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] = {
-      // Install operation
-      { 
-        {"half-installed", N_("Preparing %s")}, 
-        {"unpacked", N_("Unpacking %s") }, 
-        {NULL, NULL}
-      },
-      // Configure operation
-      { 
-        {"unpacked",N_("Preparing to configure %s") },
-        {"half-configured", N_("Configuring %s") },
-        { "installed", N_("Installed %s")},
-        {NULL, NULL}
-      },
-      // Remove operation
-      { 
-        {"half-configured", N_("Preparing for removal of %s")},
-        {"half-installed", N_("Removing %s")},
-        {"config-files",  N_("Removed %s")},
-        {NULL, NULL}
-      },
-      // Purge operation
-      { 
-        {"config-files", N_("Preparing to completely remove %s")},
-        {"not-installed", N_("Completely removed %s")},
-        {NULL, NULL}
-      },
-   };
+   // for the progress
+   BuildPackagesProgressMap();

 
 

-   // init the PackageOps map, go over the list of packages that
-   // 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>::const_iterator I = List.begin(); I != List.end(); ++I)
+   if (notconfidx != std::numeric_limits<decltype(notconfidx)>::max())

    {
    {

-      if((*I).Pkg.end() == true)
-        continue;
-
-      string const name = (*I).Pkg.FullName();
-      PackageOpsDone[name] = 0;
-      for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; ++i)
-      {
-        PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
-        PackagesTotal++;
-      }
+      if (ConfigurePending)
+        List.erase(std::next(List.begin(), notconfidx), std::prev(List.end()));
+      else
+        List.erase(std::next(List.begin(), notconfidx), List.end());

    }
 
    d->stdin_is_dev_null = false;
    }
 
    d->stdin_is_dev_null = false;


@@ -1043,23 +1286,17 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
    // create log
    OpenLog();
 
    // create log
    OpenLog();
 

-   bool dpkgMultiArch = false;
-   if (dpkgAssertMultiArch > 0)
-   {
-      int Status = 0;
-      while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
-      {
-        if (errno == EINTR)
-           continue;
-        _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
-        break;
-      }
-      if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
-        dpkgMultiArch = true;
-   }
+   bool dpkgMultiArch = debSystem::SupportsMultiArch();
+
+   // start pty magic before the loop
+   StartPtyMagic();

 
 

-   // this loop is runs once per operation
-   for (vector<Item>::const_iterator I = List.begin(); I != List.end();)
+   // Tell the progress that its starting and fork dpkg
+   d->progress->Start(d->master);
+
+   // this loop is runs once per dpkg operation
+   vector<Item>::const_iterator I = List.begin();
+   while (I != List.end())

    {
       // Do all actions with the same Op in one run
       vector<Item>::const_iterator J = I;
    {
       // Do all actions with the same Op in one run
       vector<Item>::const_iterator J = I;


@@ -1079,33 +1316,14 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
         for (; J != List.end() && J->Op == I->Op; ++J)
            /* nothing */;
 
         for (; J != List.end() && J->Op == I->Op; ++J)
            /* nothing */;
 

-      // keep track of allocated strings for multiarch package names
-      std::vector<char *> Packages;
+      auto const size = (J - I) + 10;

 
       // start with the baseset of arguments
 
       // start with the baseset of arguments

-      unsigned long Size = StartSize;
+      auto Size = StartSize;

       Args.erase(Args.begin() + BaseArgs, Args.end());
       Args.erase(Args.begin() + BaseArgs, Args.end());

-
-      // Now check if we are within the MaxArgs limit
-      //
-      // this code below is problematic, because it may happen that
-      // the argument list is split in a way that A depends on B
-      // and they are in the same "--configure A B" run
-      // - with the split they may now be configured in different
-      //   runs, using Immediate-Configure-All can help prevent this.
-      if (J - I > (signed)MaxArgs)
-      {
-        J = I + MaxArgs;
-        unsigned long const size = MaxArgs + 10;
-        Args.reserve(size);
-        Packages.reserve(size);
-      }
-      else
-      {
-        unsigned long const size = (J - I) + 10;
-        Args.reserve(size);
-        Packages.reserve(size);
-      }
+      Args.reserve(size);
+      // keep track of allocated strings for multiarch package names
+      std::vector<char *> Packages(size, nullptr);

 
       int fd[2];
       if (pipe(fd) != 0)
 
       int fd[2];
       if (pipe(fd) != 0)


@@ -1127,13 +1345,13 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
         ADDARGC("--force-remove-essential");
         ADDARGC("--remove");
         break;
         ADDARGC("--force-remove-essential");
         ADDARGC("--remove");
         break;

-        
+

         case Item::Purge:
         ADDARGC("--force-depends");
         ADDARGC("--force-remove-essential");
         ADDARGC("--purge");
         break;
         case Item::Purge:
         ADDARGC("--force-depends");
         ADDARGC("--force-remove-essential");
         ADDARGC("--purge");
         break;

-        
+

         case Item::Configure:
         ADDARGC("--configure");
         break;
         case Item::Configure:
         ADDARGC("--configure");
         break;


@@ -1180,7 +1398,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
         {
            if((*I).Pkg.end() == true)
               continue;
         {
            if((*I).Pkg.end() == true)
               continue;

-           if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end())
+           if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.FullName(true)) != disappearedPkgs.end())

               continue;
            // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
            if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||
               continue;
            // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
            if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||


@@ -1220,13 +1438,19 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
 #undef ADDARG
 
       J = I;
 #undef ADDARG
 
       J = I;

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

       {
         for (std::vector<const char *>::const_iterator a = Args.begin();
              a != Args.end(); ++a)
            clog << *a << ' ';
         clog << endl;
       {
         for (std::vector<const char *>::const_iterator a = Args.begin();
              a != Args.end(); ++a)
            clog << *a << ' ';
         clog << endl;

+        for (std::vector<char *>::const_iterator p = Packages.begin();
+              p != Packages.end(); ++p)
+           free(*p);
+        Packages.clear();
+        close(fd[0]);
+        close(fd[1]);

         continue;
       }
       Args.push_back(NULL);
         continue;
       }
       Args.push_back(NULL);


@@ -1235,134 +1459,77 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
       clog << flush;
       cerr << flush;
 
       clog << flush;
       cerr << flush;
 

-      /* Mask off sig int/quit. We do this because dpkg also does when 
+      /* Mask off sig int/quit. We do this because dpkg also does when

          it forks scripts. What happens is that when you hit ctrl-c it sends
          it forks scripts. What happens is that when you hit ctrl-c it sends

-        it to all processes in the group. Since dpkg ignores the signal 
+        it to all processes in the group. Since dpkg ignores the signal

         it doesn't die but we do! So we must also ignore it */
       sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
       sighandler_t old_SIGINT = signal(SIGINT,SigINT);
         it doesn't die but we do! So we must also ignore it */
       sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
       sighandler_t old_SIGINT = signal(SIGINT,SigINT);

-      
+

       // Check here for any SIGINT
       // Check here for any SIGINT

-      if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install)) 
+      if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))

          break;
          break;

-      
-      
+

       // ignore SIGHUP as well (debian #463030)
       sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
 
       // ignore SIGHUP as well (debian #463030)
       sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
 

-      struct   termios tt;
-      struct   winsize win;
-      int      master = -1;
-      int      slave = -1;
-
-      // if tcgetattr does not return zero there was a error
-      // and we do not do any pty magic
-      _error->PushToStack();
-      if (tcgetattr(STDOUT_FILENO, &tt) == 0)
-      {
-        ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&win);
-        if (openpty(&master, &slave, NULL, &tt, &win) < 0)
-        {
-           _error->Errno("openpty", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
-           master = slave = -1;
-        }  else {
-           struct termios rtt;
-           rtt = tt;
-           cfmakeraw(&rtt);
-           rtt.c_lflag &= ~ECHO;
-           rtt.c_lflag |= ISIG;
-           // 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);
-        }
-      }
-      // complain only if stdout is either a terminal (but still failed) or is an invalid
-      // descriptor otherwise we would complain about redirection to e.g. /dev/null as well.
-      else if (isatty(STDOUT_FILENO) == 1 || errno == EBADF)
-         _error->Errno("tcgetattr", _("Can not write log (%s)"), _("Is stdout a terminal?"));
-
-      if (_error->PendingError() == true)
-        _error->DumpErrors(std::cerr);
-      _error->RevertToStack();
-
-      // this is the dpkg status-fd, we need to keep it
-      _config->Set("APT::Keep-Fds::",fd[1]);
-
-       // Tell the progress that its starting and fork dpkg 
-      // FIXME: this is called once per dpkg run which is *too often*
-      d->progress->Start();
-
-      pid_t Child = ExecFork();
-      // This is the child
+      // now run dpkg
+      d->progress->StartDpkg();
+      std::set<int> KeepFDs;
+      KeepFDs.insert(fd[1]);
+      MergeKeepFdsFromConfiguration(KeepFDs);
+      pid_t Child = ExecFork(KeepFDs);

       if (Child == 0)
       {
       if (Child == 0)
       {

-
-        if(slave >= 0 && master >= 0) 
-        {
-           setsid();
-           ioctl(slave, TIOCSCTTY, 0);
-           close(master);
-           dup2(slave, 0);
-           dup2(slave, 1);
-           dup2(slave, 2);
-           close(slave);
-        }
+        // This is the child
+        SetupSlavePtyMagic();

         close(fd[0]); // close the read end of the pipe
 
         close(fd[0]); // close the read end of the pipe
 

-        dpkgChrootDirectory();
+        debSystem::DpkgChrootDirectory();

 
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
 
         if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO))
         {
 
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
 
         if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO))
         {

-           int Flags,dummy;
+           int Flags;
+            int dummy = 0;

            if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
               _exit(100);
            if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
               _exit(100);

-           
+

            // Discard everything in stdin before forking dpkg
            if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0)
               _exit(100);
            // Discard everything in stdin before forking dpkg
            if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0)
               _exit(100);

-           
+

            while (read(STDIN_FILENO,&dummy,1) == 1);
            while (read(STDIN_FILENO,&dummy,1) == 1);

-           
+

            if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
               _exit(100);
         }
 
            if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
               _exit(100);
         }
 

-        /* No Job Control Stop Env is a magic dpkg var that prevents it
-           from using sigstop */
-        putenv((char *)"DPKG_NO_TSTP=yes");
+        // if color support isn't enabled/disabled explicitly tell
+        // dpkg to use the same state apt is using for its color support
+        if (_config->FindB("APT::Color", false) == true)
+           setenv("DPKG_COLORS", "always", 0);
+        else
+           setenv("DPKG_COLORS", "never", 0);
+

         execvp(Args[0], (char**) &Args[0]);
         cerr << "Could not exec dpkg!" << endl;
         _exit(100);
         execvp(Args[0], (char**) &Args[0]);
         cerr << "Could not exec dpkg!" << endl;
         _exit(100);

-      }      
-
-      // apply ionice
-      if (_config->FindB("DPkg::UseIoNice", false) == true)
-        ionice(Child);
-
-      // clear the Keep-Fd again
-      _config->Clear("APT::Keep-Fds",fd[1]);
-
-      // Wait for dpkg
-      int Status = 0;
+      }

 
       // we read from dpkg here
       int const _dpkgin = fd[0];
       close(fd[1]);                        // close the write end of the pipe
 
 
       // we read from dpkg here
       int const _dpkgin = fd[0];
       close(fd[1]);                        // close the write end of the pipe
 

-      if(slave > 0)
-        close(slave);
+      // apply ionice
+      if (_config->FindB("DPkg::UseIoNice", false) == true)
+        ionice(Child);

 
       // setups fds
 
       // setups fds

-      sigemptyset(&sigmask);
-      sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
+      sigemptyset(&d->sigmask);
+      sigprocmask(SIG_BLOCK,&d->sigmask,&d->original_sigmask);

 
       /* free vectors (and therefore memory) as we don't need the included data anymore */
       for (std::vector<char *>::const_iterator p = Packages.begin();
 
       /* free vectors (and therefore memory) as we don't need the included data anymore */
       for (std::vector<char *>::const_iterator p = Packages.begin();


@@ -1371,54 +1538,44 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
       Packages.clear();
 
       // the result of the waitpid call
       Packages.clear();
 
       // the result of the waitpid call

+      int Status = 0;

       int res;
       int res;

-      int select_ret;
+      bool waitpid_failure = false;

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

-           // FIXME: move this to a function or something, looks ugly here

            // error handling, waitpid returned -1
            if (errno == EINTR)
               continue;
            // error handling, waitpid returned -1
            if (errno == EINTR)
               continue;

-           RunScripts("DPkg::Post-Invoke");
-
-           // Restore sig int/quit
-           signal(SIGQUIT,old_SIGQUIT);
-           signal(SIGINT,old_SIGINT);
-
-           signal(SIGHUP,old_SIGHUP);
-           return _error->Errno("waitpid","Couldn't wait for subprocess");
+           waitpid_failure = true;
+           break;

         }
 
         // wait for input or output here
         FD_ZERO(&rfds);
         }
 
         // wait for input or output here
         FD_ZERO(&rfds);

-        if (master >= 0 && !d->stdin_is_dev_null)
-           FD_SET(0, &rfds); 
+        if (d->master >= 0 && d->direct_stdin == false && d->stdin_is_dev_null == false)
+           FD_SET(STDIN_FILENO, &rfds);

         FD_SET(_dpkgin, &rfds);
         FD_SET(_dpkgin, &rfds);

-        if(master >= 0)
-           FD_SET(master, &rfds);
-        tv.tv_sec = 0;
-        tv.tv_nsec = d->progress->GetPulseInterval();
-        select_ret = pselect(max(master, _dpkgin)+1, &rfds, NULL, NULL, 
-                             &tv, &original_sigmask);
-        if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
-           select_ret = racy_pselect(max(master, _dpkgin)+1, &rfds, NULL,
-                                     NULL, &tv, &original_sigmask);
+        if(d->master >= 0)
+           FD_SET(d->master, &rfds);
+         tv.tv_sec = 0;
+         tv.tv_nsec = d->progress->GetPulseInterval();
+        auto const select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
+                             &tv, &d->original_sigmask);

          d->progress->Pulse();
          d->progress->Pulse();

+        if (select_ret == 0)
+           continue;
+        else if (select_ret < 0 && errno == EINTR)
+           continue;
+        else if (select_ret < 0)
+        {
+           perror("select() returned error");
+           continue;
+        }

 
 

-        if (select_ret == 0) 
-           continue;
-        else if (select_ret < 0 && errno == EINTR)
-           continue;
-        else if (select_ret < 0) 
-        {
-           perror("select() returned error");
-           continue;
-        } 
-        
-        if(master >= 0 && FD_ISSET(master, &rfds))
-           DoTerminalPty(master);
-        if(master >= 0 && FD_ISSET(0, &rfds))
-           DoStdin(master);
+        if(d->master >= 0 && FD_ISSET(d->master, &rfds))
+           DoTerminalPty(d->master);
+        if(d->master >= 0 && FD_ISSET(0, &rfds))
+           DoStdin(d->master);

         if(FD_ISSET(_dpkgin, &rfds))
            DoDpkgStatusFd(_dpkgin);
       }
         if(FD_ISSET(_dpkgin, &rfds))
            DoDpkgStatusFd(_dpkgin);
       }


@@ -1427,62 +1584,47 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
       // Restore sig int/quit
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);
       // Restore sig int/quit
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);

-      

       signal(SIGHUP,old_SIGHUP);
 
       signal(SIGHUP,old_SIGHUP);
 

-      if(master >= 0) 
+      if (waitpid_failure == true)

       {
       {

-        tcsetattr(0, TCSAFLUSH, &tt);
-        close(master);
+        strprintf(d->dpkg_error, "Sub-process %s couldn't be waited for.",Args[0]);
+        _error->Error("%s", d->dpkg_error.c_str());
+        break;

       }
 
       // Check for an error code.
       if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
       {
       }
 
       // Check for an error code.
       if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
       {

-        // if it was set to "keep-dpkg-runing" then we won't return
+        // if it was set to "keep-dpkg-running" then we won't return

         // here but keep the loop going and just report it as a error
         // for later
         bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);
         // here but keep the loop going and just report it as a error
         // for later
         bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);

-        
-        if(stopOnError)
-           RunScripts("DPkg::Post-Invoke");

 
 

-        if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) 
+        if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV)

            strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
         else if (WIFEXITED(Status) != 0)
            strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
            strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
         else if (WIFEXITED(Status) != 0)
            strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));

-        else 
+        else

            strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
            strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);

+        _error->Error("%s", d->dpkg_error.c_str());

 
 

-        if(d->dpkg_error.size() > 0)
-           _error->Error("%s", d->dpkg_error.c_str());
-
-        if(stopOnError) 
-        {
-           CloseLog();
-            d->progress->Stop();
-           return false;
-        }
-      }      
+        if(stopOnError)
+           break;
+      }

    }
    }

-   CloseLog();
-

    // dpkg is done at this point
    // dpkg is done at this point

-   d->progress->StatusChanged("", PackagesDone, PackagesTotal, "");
-   d->progress->Stop();
-
+   StopPtyMagic();
+   CloseLog();

 
    if (pkgPackageManager::SigINTStop)
        _error->Warning(_("Operation was interrupted before it could finish"));
 
 
    if (pkgPackageManager::SigINTStop)
        _error->Warning(_("Operation was interrupted before it could finish"));
 

-   if (RunScripts("DPkg::Post-Invoke") == false)
-      return false;
-
-   if (_config->FindB("Debug::pkgDPkgPM",false) == false)
+   if (noopDPkgInvocation == false)

    {
       std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
       if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
    {
       std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
       if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&

-         unlink(oldpkgcache.c_str()) == 0)
+         RemoveFile("pkgDPkgPM::Go", oldpkgcache))

       {
         std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
         if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
       {
         std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
         if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)


@@ -1495,18 +1637,26 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
       }
    }
 
       }
    }
 

-   Cache.writeStateFile(NULL);
-   return true;
+   // disappearing packages can forward their auto-bit
+   if (disappearedPkgs.empty() == false)
+      Cache.writeStateFile(NULL);
+
+   d->progress->Stop();
+
+   if (RunScripts("DPkg::Post-Invoke") == false)
+      return false;
+
+   return d->dpkg_error.empty();

 }
 
 }
 

-void SigINT(int sig) {
+void SigINT(int /*sig*/) {

    pkgPackageManager::SigINTStop = true;
 }
                                                                        /*}}}*/
 // pkgDpkgPM::Reset - Dump the contents of the command list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
    pkgPackageManager::SigINTStop = true;
 }
                                                                        /*}}}*/
 // pkgDpkgPM::Reset - Dump the contents of the command list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDPkgPM::Reset() 
+void pkgDPkgPM::Reset()

 {
    List.erase(List.begin(),List.end());
 }
 {
    List.erase(List.begin(),List.end());
 }


@@ -1514,7 +1664,7 @@ void pkgDPkgPM::Reset()
 // pkgDpkgPM::WriteApportReport - write out error report pkg failure   /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // pkgDpkgPM::WriteApportReport - write out error report pkg failure   /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) 
+void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)

 {
    // If apport doesn't exist or isn't installed do nothing
    // This e.g. prevents messages in 'universes' without apport
 {
    // If apport doesn't exist or isn't installed do nothing
    // This e.g. prevents messages in 'universes' without apport


@@ -1522,11 +1672,11 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
       return;
 
    if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
       return;
 

-   string pkgname, reportfile, srcpkgname, pkgver, arch;
+   string pkgname, reportfile, pkgver, arch;

    string::size_type pos;
    FILE *report;
 
    string::size_type pos;
    FILE *report;
 

-   if (_config->FindB("Dpkg::ApportFailureReport", false) == false)
+   if (_config->FindB("Dpkg::ApportFailureReport", true) == false)

    {
       std::clog << "configured to not write apport reports" << std::endl;
       return;
    {
       std::clog << "configured to not write apport reports" << std::endl;
       return;


@@ -1539,51 +1689,78 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
       return;
    }
 
       return;
    }
 

-   // check if its not a follow up error 
+   // check if its not a follow up error

    const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured");
    if(strstr(errormsg, needle) != NULL) {
       std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl;
       return;
    }
 
    const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured");
    if(strstr(errormsg, needle) != NULL) {
       std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl;
       return;
    }
 

-   // do not report disk-full failures 
+   // do not report disk-full failures

    if(strstr(errormsg, strerror(ENOSPC)) != NULL) {
       std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl;
       return;
    }
 
    if(strstr(errormsg, strerror(ENOSPC)) != NULL) {
       std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl;
       return;
    }
 

-   // do not report out-of-memory failures 
-   if(strstr(errormsg, strerror(ENOMEM)) != NULL) {
+   // do not report out-of-memory failures
+   if(strstr(errormsg, strerror(ENOMEM)) != NULL ||
+      strstr(errormsg, "failed to allocate memory") != NULL) {

       std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl;
       return;
    }
 
       std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl;
       return;
    }
 

-   // do not report dpkg I/O errors
-   // XXX - this message is localized, but this only matches the English version.  This is better than nothing.
-   if(strstr(errormsg, "short read in buffer_copy (")) {
-      std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl;
+   // do not report bugs regarding inaccessible local files
+   if(strstr(errormsg, strerror(ENOENT)) != NULL ||
+      strstr(errormsg, "cannot access archive") != NULL) {
+      std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;
+      return;
+   }
+
+   // do not report errors encountered when decompressing packages
+   if(strstr(errormsg, "--fsys-tarfile returned error exit status 2") != NULL) {
+      std::clog << _("No apport report written because the error message indicates an issue on the local system") << std::endl;

       return;
    }
 
       return;
    }
 

+   // do not report dpkg I/O errors, this is a format string, so we compare
+   // the prefix and the suffix of the error with the dpkg error message
+   vector<string> io_errors;
+   io_errors.push_back(string("failed to read"));
+   io_errors.push_back(string("failed to write"));
+   io_errors.push_back(string("failed to seek"));
+   io_errors.push_back(string("unexpected end of file or stream"));
+
+   for (vector<string>::iterator I = io_errors.begin(); I != io_errors.end(); ++I)
+   {
+      vector<string> list = VectorizeString(dgettext("dpkg", (*I).c_str()), '%');
+      if (list.size() > 1) {
+         // we need to split %s, VectorizeString only allows char so we need
+         // to kill the "s" manually
+         if (list[1].size() > 1) {
+            list[1].erase(0, 1);
+            if(strstr(errormsg, list[0].c_str()) &&
+               strstr(errormsg, list[1].c_str())) {
+               std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl;
+               return;
+            }
+         }
+      }
+   }
+

    // get the pkgname and reportfile
    pkgname = flNotDir(pkgpath);
    pos = pkgname.find('_');
    if(pos != string::npos)
       pkgname = pkgname.substr(0, pos);
 
    // get the pkgname and reportfile
    pkgname = flNotDir(pkgpath);
    pos = pkgname.find('_');
    if(pos != string::npos)
       pkgname = pkgname.substr(0, pos);
 

-   // find the package versin and source package name
+   // find the package version and source package name

    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (Pkg.end() == true)
       return;
    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (Pkg.end() == true)
       return;

-   pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
+   pkgCache::VerIterator Ver = Cache.GetCandidateVersion(Pkg);

    if (Ver.end() == true)
       return;
    pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();
    if (Ver.end() == true)
       return;
    pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();

-   pkgRecords Recs(Cache);
-   pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
-   srcpkgname = Parse.SourcePkg();
-   if(srcpkgname.empty())
-      srcpkgname = pkgname;

 
    // if the file exists already, we check:
    // - if it was reported already (touched by apport). 
 
    // if the file exists already, we check:
    // - if it was reported already (touched by apport). 


@@ -1591,7 +1768,8 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    //    we overwrite it. This is the same behaviour as apport
    // - if we have a report with the same pkgversion already
    //   then we skip it
    //    we overwrite it. This is the same behaviour as apport
    // - if we have a report with the same pkgversion already
    //   then we skip it

-   reportfile = flCombine("/var/crash",pkgname+".0.crash");
+   _config->CndSet("Dir::Apport", "var/crash");
+   reportfile = flCombine(_config->FindDir("Dir::Apport", "var/crash"), pkgname+".0.crash");

    if(FileExists(reportfile))
    {
       struct stat buf;
    if(FileExists(reportfile))
    {
       struct stat buf;


@@ -1632,9 +1810,10 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    fprintf(report, "ProblemType: Package\n");
    fprintf(report, "Architecture: %s\n", arch.c_str());
    time_t now = time(NULL);
    fprintf(report, "ProblemType: Package\n");
    fprintf(report, "Architecture: %s\n", arch.c_str());
    time_t now = time(NULL);

-   fprintf(report, "Date: %s" , ctime(&now));
+   char ctime_buf[26]; // need at least 26 bytes according to ctime(3)
+   fprintf(report, "Date: %s" , ctime_r(&now, ctime_buf));

    fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str());
    fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str());

-   fprintf(report, "SourcePackage: %s\n", srcpkgname.c_str());
+   fprintf(report, "SourcePackage: %s\n", Ver.SourcePkgName());

    fprintf(report, "ErrorMessage:\n %s\n", errormsg);
 
    // ensure that the log is flushed
    fprintf(report, "ErrorMessage:\n %s\n", errormsg);
 
    // ensure that the log is flushed


@@ -1650,6 +1829,22 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
       fprintf(report, "DpkgTerminalLog:\n");
       log = fopen(logfile_name.c_str(),"r");
       if(log != NULL)
       fprintf(report, "DpkgTerminalLog:\n");
       log = fopen(logfile_name.c_str(),"r");
       if(log != NULL)

+      {
+        char buf[1024];
+        while( fgets(buf, sizeof(buf), log) != NULL)
+           fprintf(report, " %s", buf);
+         fprintf(report, " \n");
+        fclose(log);
+      }
+   }
+
+   // attach history log it if we have it
+   string histfile_name = _config->FindFile("Dir::Log::History");
+   if (!histfile_name.empty())
+   {
+      fprintf(report, "DpkgHistoryLog:\n");
+      FILE* log = fopen(histfile_name.c_str(),"r");
+      if(log != NULL)

       {
         char buf[1024];
         while( fgets(buf, sizeof(buf), log) != NULL)
       {
         char buf[1024];
         while( fgets(buf, sizeof(buf), log) != NULL)


@@ -1658,8 +1853,15 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
       }
    }
 
       }
    }
 

-   // log the ordering 
-   const char *ops_str[] = {"Install", "Configure","Remove","Purge"};
+   // log the ordering, see dpkgpm.h and the "Ops" enum there
+   const char *ops_str[] = {
+      "Install",
+      "Configure",
+      "Remove",
+      "Purge",
+      "ConfigurePending",
+      "TriggersPending",
+   };

    fprintf(report, "AptOrdering:\n");
    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
       if ((*I).Pkg != NULL)
    fprintf(report, "AptOrdering:\n");
    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
       if ((*I).Pkg != NULL)