]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/deb/dpkgpm.cc
fix the remaining lzma calls with xz --format=lzma in the testcases
[apt.git] / apt-pkg / deb / dpkgpm.cc
index ca544e778f7e5fbedbdc8a5cef6c04cab1771e28..1a21c03ebe2be6e67ef4c5b548495468ef630e6e 100644 (file)
@@ -8,14 +8,17 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
+#include <config.h>
+
 #include <apt-pkg/dpkgpm.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/pkgrecords.h>
 #include <apt-pkg/strutl.h>
-#include <apti18n.h>
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/packagemanager.h>
 
 #include <unistd.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
 #include <pty.h>
 
-#include <config.h>
 #include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
 
+class pkgDPkgPMPrivate 
+{
+public:
+   pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),
+                       term_out(NULL), history_out(NULL)
+   {
+      dpkgbuf[0] = '\0';
+   }
+   bool stdin_is_dev_null;
+   // the buffer we use for the dpkg status-fd reading
+   char dpkgbuf[1024];
+   int dpkgbuf_pos;
+   FILE *term_out;
+   FILE *history_out;
+   string dpkg_error;
+};
+
 namespace
 {
   // Maps the dpkg "processing" info to human readable names.  Entry 0
@@ -91,7 +110,7 @@ ionice(int PID)
 {
    if (!FileExists("/usr/bin/ionice"))
       return false;
-   pid_t Process = ExecFork();      
+   pid_t Process = ExecFork();
    if (Process == 0)
    {
       char buf[32];
@@ -106,13 +125,72 @@ ionice(int PID)
    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);
+}
+                                                                       /*}}}*/
+
+
+// FindNowVersion - Helper to find a Version in "now" state    /*{{{*/
+// ---------------------------------------------------------------------
+/* This is helpful when a package is no longer installed but has residual 
+ * config files
+ */
+static 
+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;
+         }
+      }
+   }
+   return Ver;
+}
+                                                                       /*}}}*/
+static ssize_t
+retry_write(int fd, const void *buf, size_t count)
+{
+   int Res;
+   ssize_t i = 0;
+   errno = 0;
+   do
+   {
+      Res = write(fd, buf, count);
+      if (Res < 0 && errno == EINTR)
+        continue;
+      if (Res < 0)
+        break;
+      buf = (char *)buf + Res;
+      count -= Res;
+      i += Res;
+   }
+   while (Res > 0 && count > 0);
+   return i;
+}
+
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 
-   : pkgPackageManager(Cache), dpkgbuf_pos(0),
-     term_out(NULL), history_out(NULL), PackagesDone(0), PackagesTotal(0)
+   : pkgPackageManager(Cache), PackagesDone(0), PackagesTotal(0)
 {
+   d = new pkgDPkgPMPrivate();
 }
                                                                        /*}}}*/
 // DPkgPM::pkgDPkgPM - Destructor                                      /*{{{*/
@@ -120,6 +198,7 @@ pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
 /* */
 pkgDPkgPM::~pkgDPkgPM()
 {
+   delete d;
 }
                                                                        /*}}}*/
 // DPkgPM::Install - Install a package                                 /*{{{*/
@@ -213,7 +292,7 @@ bool pkgDPkgPM::SendV2Pkgs(FILE *F)
    fprintf(F,"\n");
  
    // Write out the package actions in order.
-   for (vector<Item>::iterator I = List.begin(); I != List.end(); I++)
+   for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
    {
       if(I->Pkg.end() == true)
         continue;
@@ -310,15 +389,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
         SetCloseExec(STDIN_FILENO,false);      
         SetCloseExec(STDERR_FILENO,false);
 
-        if (_config->FindDir("DPkg::Chroot-Directory","/") != "/") 
-        {
-           std::cerr << "Chrooting into " 
-                     << _config->FindDir("DPkg::Chroot-Directory") 
-                     << std::endl;
-           if (chroot(_config->FindDir("DPkg::Chroot-Directory","/").c_str()) != 0)
-              _exit(100);
-        }
-
+        dpkgChrootDirectory();
         const char *Args[4];
         Args[0] = "/bin/sh";
         Args[1] = "-c";
@@ -335,7 +406,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
       // Feed it the filenames.
       if (Version <= 1)
       {
-        for (vector<Item>::iterator I = List.begin(); I != List.end(); I++)
+        for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
         {
            // Only deal with packages to be installed from .deb
            if (I->Op != Item::Install)
@@ -374,9 +445,9 @@ void pkgDPkgPM::DoStdin(int master)
    unsigned char input_buf[256] = {0,}; 
    ssize_t len = read(0, input_buf, sizeof(input_buf));
    if (len)
-      write(master, input_buf, len);
+      retry_write(master, input_buf, len);
    else
-      stdin_is_dev_null = true;
+      d->stdin_is_dev_null = true;
 }
                                                                        /*}}}*/
 // DPkgPM::DoTerminalPty - Read the terminal pty and write log         /*{{{*/
@@ -400,9 +471,9 @@ void pkgDPkgPM::DoTerminalPty(int master)
    }  
    if(len <= 0) 
       return;
-   write(1, term_buf, len);
-   if(term_out)
-      fwrite(term_buf, len, sizeof(char), term_out);
+   retry_write(1, term_buf, len);
+   if(d->term_out)
+      fwrite(term_buf, len, sizeof(char), d->term_out);
 }
                                                                        /*}}}*/
 // DPkgPM::ProcessDpkgStatusBuf                                                /*{{{*/
@@ -475,7 +546,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)
-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        retry_write(OutStatusFd, status.str().c_str(), status.str().size());
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
 
@@ -499,7 +570,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)
-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        retry_write(OutStatusFd, status.str().c_str(), status.str().size());
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       pkgFailures++;
@@ -513,7 +584,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)
-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        retry_write(OutStatusFd, status.str().c_str(), status.str().size());
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       return;
@@ -541,7 +612,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)
-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        retry_write(OutStatusFd, status.str().c_str(), status.str().size());
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
    }
@@ -606,14 +677,14 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
    char *p, *q;
    int len;
 
-   len=read(statusfd, &dpkgbuf[dpkgbuf_pos], sizeof(dpkgbuf)-dpkgbuf_pos);
-   dpkgbuf_pos += len;
+   len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
+   d->dpkgbuf_pos += len;
    if(len <= 0)
       return;
 
    // process line by line if we have a buffer
-   p = q = dpkgbuf;
-   while((q=(char*)memchr(p, '\n', dpkgbuf+dpkgbuf_pos-p)) != NULL)
+   p = q = d->dpkgbuf;
+   while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
    {
       *q = 0;
       ProcessDpkgStatusLine(OutStatusFd, p);
@@ -621,8 +692,8 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
    }
 
    // now move the unprocessed bits (after the final \n that is now a 0x0) 
-   // to the start and update dpkgbuf_pos
-   p = (char*)memrchr(dpkgbuf, 0, dpkgbuf_pos);
+   // to the start and update d->dpkgbuf_pos
+   p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
    if(p == NULL)
       return;
 
@@ -630,8 +701,8 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
    p++;
 
    // move the unprocessed tail to the start and update pos
-   memmove(dpkgbuf, p, p-dpkgbuf);
-   dpkgbuf_pos = dpkgbuf+dpkgbuf_pos-p;
+   memmove(d->dpkgbuf, p, p-d->dpkgbuf);
+   d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
 }
                                                                        /*}}}*/
 // DPkgPM::WriteHistoryTag                                             /*{{{*/
@@ -643,7 +714,7 @@ void pkgDPkgPM::WriteHistoryTag(string const &tag, string value)
    // poor mans rstrip(", ")
    if (value[length-2] == ',' && value[length-1] == ' ')
       value.erase(length - 2, 2);
-   fprintf(history_out, "%s: %s\n", tag.c_str(), value.c_str());
+   fprintf(d->history_out, "%s: %s\n", tag.c_str(), value.c_str());
 }                                                                      /*}}}*/
 // DPkgPM::OpenLog                                                     /*{{{*/
 bool pkgDPkgPM::OpenLog()
@@ -664,11 +735,11 @@ bool pkgDPkgPM::OpenLog()
                                   _config->Find("Dir::Log::Terminal"));
    if (!logfile_name.empty())
    {
-      term_out = fopen(logfile_name.c_str(),"a");
-      if (term_out == NULL)
+      d->term_out = fopen(logfile_name.c_str(),"a");
+      if (d->term_out == NULL)
         return _error->WarningE("OpenLog", _("Could not open file '%s'"), logfile_name.c_str());
-      setvbuf(term_out, NULL, _IONBF, 0);
-      SetCloseExec(fileno(term_out), true);
+      setvbuf(d->term_out, NULL, _IONBF, 0);
+      SetCloseExec(fileno(d->term_out), true);
       struct passwd *pw;
       struct group *gr;
       pw = getpwnam("root");
@@ -676,7 +747,7 @@ bool pkgDPkgPM::OpenLog()
       if (pw != NULL && gr != NULL)
          chown(logfile_name.c_str(), pw->pw_uid, gr->gr_gid);
       chmod(logfile_name.c_str(), 0644);
-      fprintf(term_out, "\nLog started: %s\n", timestr);
+      fprintf(d->term_out, "\nLog started: %s\n", timestr);
    }
 
    // write your history
@@ -684,41 +755,52 @@ bool pkgDPkgPM::OpenLog()
                                   _config->Find("Dir::Log::History"));
    if (!history_name.empty())
    {
-      history_out = fopen(history_name.c_str(),"a");
-      if (history_out == NULL)
+      d->history_out = fopen(history_name.c_str(),"a");
+      if (d->history_out == NULL)
         return _error->WarningE("OpenLog", _("Could not open file '%s'"), history_name.c_str());
       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++)
+      fprintf(d->history_out, "\nStart-Date: %s\n", timestr);
+      string remove, purge, install, reinstall, upgrade, downgrade;
+      for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
       {
-        if (Cache[I].NewInstall())
-        {
-           install += I.FullName(false) + string(" (") + Cache[I].CandVersion;
-           if (Cache[I].Flags & pkgCache::Flag::Auto)
-              install+= ", automatic";
-           install += string("), ");
-        }
-        else if (Cache[I].Upgrade())
-           upgrade += I.FullName(false) + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), ");
-        else if (Cache[I].Downgrade())
-           downgrade += I.FullName(false) + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), ");
-        else if (Cache[I].Delete())
-        {
-           if ((Cache[I].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge)
-              purge += I.FullName(false) + string(" (") + Cache[I].CurVersion + string("), ");     
-           else
-              remove += I.FullName(false) + string(" (") + Cache[I].CurVersion + string("), ");            
+        enum { CANDIDATE, CANDIDATE_AUTO, CURRENT_CANDIDATE, CURRENT } infostring;
+        string *line = NULL;
+        #define HISTORYINFO(X, Y) { line = &X; infostring = Y; }
+        if (Cache[I].NewInstall() == true)
+           HISTORYINFO(install, CANDIDATE_AUTO)
+        else if (Cache[I].ReInstall() == true)
+           HISTORYINFO(reinstall, CANDIDATE)
+        else if (Cache[I].Upgrade() == true)
+           HISTORYINFO(upgrade, CURRENT_CANDIDATE)
+        else if (Cache[I].Downgrade() == true)
+           HISTORYINFO(downgrade, CURRENT_CANDIDATE)
+        else if (Cache[I].Delete() == true)
+           HISTORYINFO((Cache[I].Purge() ? purge : remove), CURRENT)
+        else
+           continue;
+        #undef HISTORYINFO
+        line->append(I.FullName(false)).append(" (");
+        switch (infostring) {
+        case CANDIDATE: line->append(Cache[I].CandVersion); break;
+        case CANDIDATE_AUTO:
+           line->append(Cache[I].CandVersion);
+           if ((Cache[I].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
+              line->append(", automatic");
+           break;
+        case CURRENT_CANDIDATE: line->append(Cache[I].CurVersion).append(", ").append(Cache[I].CandVersion); break;
+        case CURRENT: line->append(Cache[I].CurVersion); break;
         }
+        line->append("), ");
       }
       if (_config->Exists("Commandline::AsString") == true)
         WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
       WriteHistoryTag("Install", install);
+      WriteHistoryTag("Reinstall", reinstall);
       WriteHistoryTag("Upgrade", upgrade);
       WriteHistoryTag("Downgrade",downgrade);
       WriteHistoryTag("Remove",remove);
       WriteHistoryTag("Purge",purge);
-      fflush(history_out);
+      fflush(d->history_out);
    }
    
    return true;
@@ -732,16 +814,16 @@ bool pkgDPkgPM::CloseLog()
    struct tm *tmp = localtime(&t);
    strftime(timestr, sizeof(timestr), "%F  %T", tmp);
 
-   if(term_out)
+   if(d->term_out)
    {
-      fprintf(term_out, "Log ended: ");
-      fprintf(term_out, "%s", timestr);
-      fprintf(term_out, "\n");
-      fclose(term_out);
+      fprintf(d->term_out, "Log ended: ");
+      fprintf(d->term_out, "%s", timestr);
+      fprintf(d->term_out, "\n");
+      fclose(d->term_out);
    }
-   term_out = NULL;
+   d->term_out = NULL;
 
-   if(history_out)
+   if(d->history_out)
    {
       if (disappearedPkgs.empty() == false)
       {
@@ -758,12 +840,12 @@ bool pkgDPkgPM::CloseLog()
         }
         WriteHistoryTag("Disappeared", disappear);
       }
-      if (dpkg_error.empty() == false)
-        fprintf(history_out, "Error: %s\n", dpkg_error.c_str());
-      fprintf(history_out, "End-Date: %s\n", timestr);
-      fclose(history_out);
+      if (d->dpkg_error.empty() == false)
+        fprintf(d->history_out, "Error: %s\n", d->dpkg_error.c_str());
+      fprintf(d->history_out, "End-Date: %s\n", timestr);
+      fclose(d->history_out);
    }
-   history_out = NULL;
+   d->history_out = NULL;
 
    return true;
 }
@@ -800,6 +882,58 @@ static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {
+   pkgPackageManager::SigINTStop = false;
+
+   // Generate the base argument list for dpkg
+   std::vector<const char *> Args;
+   unsigned long StartSize = 0;
+   string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+   {
+      string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
+      size_t dpkgChrootLen = dpkgChrootDir.length();
+      if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
+      {
+        if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
+           --dpkgChrootLen;
+        Tmp = Tmp.substr(dpkgChrootLen);
+      }
+   }
+   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)
+   {
+      Opts = Opts->Child;
+      for (; Opts != 0; Opts = Opts->Next)
+      {
+        if (Opts->Value.empty() == true)
+           continue;
+        Args.push_back(Opts->Value.c_str());
+        StartSize += Opts->Value.length();
+      }
+   }
+
+   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);
+
+   pid_t dpkgAssertMultiArch = ExecFork();
+   if (dpkgAssertMultiArch == 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);
+   }
+
    fd_set rfds;
    struct timespec tv;
    sigset_t sigmask;
@@ -857,32 +991,47 @@ 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)
-   for (vector<Item>::const_iterator I = List.begin(); I != List.end();I++)
+   for (vector<Item>::const_iterator I = List.begin(); I != List.end(); ++I)
    {
       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++) 
+      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;
+   d->stdin_is_dev_null = false;
 
    // 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;
+   }
+
    // this loop is runs once per operation
    for (vector<Item>::const_iterator I = List.begin(); I != List.end();)
    {
       // Do all actions with the same Op in one run
       vector<Item>::const_iterator J = I;
       if (TriggersPending == true)
-        for (; J != List.end(); J++)
+        for (; J != List.end(); ++J)
         {
            if (J->Op == I->Op)
               continue;
@@ -894,14 +1043,15 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            break;
         }
       else
-        for (; J != List.end() && J->Op == I->Op; J++)
+        for (; J != List.end() && J->Op == I->Op; ++J)
            /* nothing */;
 
-      // Generate the argument list
-      const char *Args[MaxArgs + 50];
       // keep track of allocated strings for multiarch package names
-      char *Packages[MaxArgs + 50];
-      unsigned int pkgcount = 0;
+      std::vector<char *> Packages;
+
+      // start with the baseset of arguments
+      unsigned long Size = StartSize;
+      Args.erase(Args.begin() + BaseArgs, Args.end());
 
       // Now check if we are within the MaxArgs limit
       //
@@ -909,139 +1059,141 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       // 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 
+      //   runs, using Immediate-Configure-All can help prevent this.
       if (J - I > (signed)MaxArgs)
+      {
         J = I + MaxArgs;
-      
-      unsigned int n = 0;
-      unsigned long Size = 0;
-      string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
-      Args[n++] = Tmp.c_str();
-      Size += strlen(Args[n-1]);
-      
-      // Stick in any custom dpkg options
-      Configuration::Item const *Opts = _config->Tree("DPkg::Options");
-      if (Opts != 0)
+        unsigned long const size = MaxArgs + 10;
+        Args.reserve(size);
+        Packages.reserve(size);
+      }
+      else
       {
-        Opts = Opts->Child;
-        for (; Opts != 0; Opts = Opts->Next)
-        {
-           if (Opts->Value.empty() == true)
-              continue;
-           Args[n++] = Opts->Value.c_str();
-           Size += Opts->Value.length();
-        }       
+        unsigned long const size = (J - I) + 10;
+        Args.reserve(size);
+        Packages.reserve(size);
       }
-      
-      char status_fd_buf[20];
+
       int fd[2];
-      pipe(fd);
-      
-      Args[n++] = "--status-fd";
-      Size += strlen(Args[n-1]);
+      if (pipe(fd) != 0)
+        return _error->Errno("pipe","Failed to create IPC pipe to dpkg");
+
+#define ADDARG(X) Args.push_back(X); Size += strlen(X)
+#define ADDARGC(X) Args.push_back(X); Size += sizeof(X) - 1
+
+      ADDARGC("--status-fd");
+      char status_fd_buf[20];
       snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]);
-      Args[n++] = status_fd_buf;
-      Size += strlen(Args[n-1]);
+      ADDARG(status_fd_buf);
+      unsigned long const Op = I->Op;
 
       switch (I->Op)
       {
         case Item::Remove:
-        Args[n++] = "--force-depends";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--force-remove-essential";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--remove";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--force-depends");
+        ADDARGC("--force-remove-essential");
+        ADDARGC("--remove");
         break;
         
         case Item::Purge:
-        Args[n++] = "--force-depends";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--force-remove-essential";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--purge";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--force-depends");
+        ADDARGC("--force-remove-essential");
+        ADDARGC("--purge");
         break;
         
         case Item::Configure:
-        Args[n++] = "--configure";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--configure");
         break;
 
         case Item::ConfigurePending:
-        Args[n++] = "--configure";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--pending";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--configure");
+        ADDARGC("--pending");
         break;
 
         case Item::TriggersPending:
-        Args[n++] = "--triggers-only";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--pending";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--triggers-only");
+        ADDARGC("--pending");
         break;
 
         case Item::Install:
-        Args[n++] = "--unpack";
-        Size += strlen(Args[n-1]);
-        Args[n++] = "--auto-deconfigure";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--unpack");
+        ADDARGC("--auto-deconfigure");
         break;
       }
 
       if (NoTriggers == true && I->Op != Item::TriggersPending &&
          I->Op != Item::ConfigurePending)
       {
-        Args[n++] = "--no-triggers";
-        Size += strlen(Args[n-1]);
+        ADDARGC("--no-triggers");
       }
+#undef ADDARGC
 
       // Write in the file or package names
       if (I->Op == Item::Install)
       {
-        for (;I != J && Size < MaxArgBytes; I++)
+        for (;I != J && Size < MaxArgBytes; ++I)
         {
            if (I->File[0] != '/')
               return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str());
-           Args[n++] = I->File.c_str();
-           Size += strlen(Args[n-1]);
+           Args.push_back(I->File.c_str());
+           Size += I->File.length();
         }
-      }      
+      }
       else
       {
         string const nativeArch = _config->Find("APT::Architecture");
         unsigned long const oldSize = I->Op == Item::Configure ? Size : 0;
-        for (;I != J && Size < MaxArgBytes; I++)
+        for (;I != J && Size < MaxArgBytes; ++I)
         {
            if((*I).Pkg.end() == true)
               continue;
            if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end())
               continue;
-           if (I->Pkg.Arch() == nativeArch || !strcmp(I->Pkg.Arch(), "all"))
-              Args[n++] = I->Pkg.Name();
+           // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
+           if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch || !strcmp(I->Pkg.Arch(), "all")))
+           {
+              char const * const name = I->Pkg.Name();
+              ADDARG(name);
+           }
            else
            {
-              Packages[pkgcount] = strdup(I->Pkg.FullName(false).c_str());
-              Args[n++] = Packages[pkgcount++];
+              pkgCache::VerIterator PkgVer;
+              std::string name = I->Pkg.Name();
+              if (Op == Item::Remove || Op == Item::Purge) 
+               {
+                 PkgVer = I->Pkg.CurrentVer();
+                  if(PkgVer.end() == true)
+                     PkgVer = FindNowVersion(I->Pkg);
+               }
+              else
+                 PkgVer = Cache[I->Pkg].InstVerIter(Cache);
+               if (PkgVer.end() == false)
+                  name.append(":").append(PkgVer.Arch());
+               else
+                  _error->Warning("Can not find PkgVer for '%s'", name.c_str());
+              char * const fullname = strdup(name.c_str());
+              Packages.push_back(fullname);
+              ADDARG(fullname);
            }
-           Size += strlen(Args[n-1]);
         }
         // skip configure action if all sheduled packages disappeared
         if (oldSize == Size)
            continue;
       }
-      Args[n] = 0;
+#undef ADDARG
+
       J = I;
       
       if (_config->FindB("Debug::pkgDPkgPM",false) == true)
       {
-        for (unsigned int k = 0; k != n; k++)
-           clog << Args[k] << ' ';
+        for (std::vector<const char *>::const_iterator a = Args.begin();
+             a != Args.end(); ++a)
+           clog << *a << ' ';
         clog << endl;
         continue;
       }
-      
+      Args.push_back(NULL);
+
       cout << flush;
       clog << flush;
       cerr << flush;
@@ -1051,8 +1203,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         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,SIG_IGN);
-
+      sighandler_t old_SIGINT = signal(SIGINT,SigINT);
+      
+      // Check here for any SIGINT
+      if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install)) 
+         break;
+      
+      
       // ignore SIGHUP as well (debian #463030)
       sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
 
@@ -1071,8 +1228,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            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);
+            if(d->term_out)
+              fprintf(d->term_out, "%s",s);
            master = slave = -1;
         }  else {
            struct termios rtt;
@@ -1090,7 +1247,6 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            sigprocmask(SIG_SETMASK, &original_sigmask, 0);
         }
       }
-
        // Fork dpkg
       pid_t Child;
       _config->Set("APT::Keep-Fds::",fd[1]);
@@ -1101,7 +1257,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
                << (PackagesDone/float(PackagesTotal)*100.0) 
                << ":" << _("Running dpkg")
                << endl;
-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        retry_write(OutStatusFd, status.str().c_str(), status.str().size());
       }
       Child = ExecFork();
             
@@ -1120,14 +1276,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         }
         close(fd[0]); // close the read end of the pipe
 
-        if (_config->FindDir("DPkg::Chroot-Directory","/") != "/") 
-        {
-           std::cerr << "Chrooting into " 
-                     << _config->FindDir("DPkg::Chroot-Directory") 
-                     << std::endl;
-           if (chroot(_config->FindDir("DPkg::Chroot-Directory","/").c_str()) != 0)
-              _exit(100);
-        }
+        dpkgChrootDirectory();
 
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
@@ -1151,7 +1300,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         /* No Job Control Stop Env is a magic dpkg var that prevents it
            from using sigstop */
         putenv((char *)"DPKG_NO_TSTP=yes");
-        execvp(Args[0],(char **)Args);
+        execvp(Args[0], (char**) &Args[0]);
         cerr << "Could not exec dpkg!" << endl;
         _exit(100);
       }      
@@ -1177,10 +1326,11 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       sigemptyset(&sigmask);
       sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
 
-      /* clean up the temporary allocation for multiarch package names in
-         the parent, so we don't leak memory when we return. */
-      for (unsigned int i = 0; i < pkgcount; i++)
-        free(Packages[i]);
+      /* free vectors (and therefore memory) as we don't need the included data anymore */
+      for (std::vector<char *>::const_iterator p = Packages.begin();
+          p != Packages.end(); ++p)
+        free(*p);
+      Packages.clear();
 
       // the result of the waitpid call
       int res;
@@ -1196,13 +1346,14 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            // 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");
         }
 
         // wait for input or output here
         FD_ZERO(&rfds);
-        if (master >= 0 && !stdin_is_dev_null)
+        if (master >= 0 && !d->stdin_is_dev_null)
            FD_SET(0, &rfds); 
         FD_SET(_dpkgin, &rfds);
         if(master >= 0)
@@ -1236,6 +1387,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       // Restore sig int/quit
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);
+      
       signal(SIGHUP,old_SIGHUP);
 
       if(master >= 0) 
@@ -1256,14 +1408,14 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            RunScripts("DPkg::Post-Invoke");
 
         if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) 
-           strprintf(dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
+           strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]);
         else if (WIFEXITED(Status) != 0)
-           strprintf(dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
+           strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status));
         else 
-           strprintf(dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
+           strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]);
 
-        if(dpkg_error.size() > 0)
-           _error->Error("%s", dpkg_error.c_str());
+        if(d->dpkg_error.size() > 0)
+           _error->Error("%s", d->dpkg_error.c_str());
 
         if(stopOnError) 
         {
@@ -1273,13 +1425,37 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       }      
    }
    CloseLog();
+   
+   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)
+   {
+      std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
+      if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
+         unlink(oldpkgcache.c_str()) == 0)
+      {
+        std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
+        if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
+        {
+           _error->PushToStack();
+           pkgCacheFile CacheFile;
+           CacheFile.BuildCaches(NULL, true);
+           _error->RevertToStack();
+        }
+      }
+   }
+
    Cache.writeStateFile(NULL);
    return true;
 }
+
+void SigINT(int sig) {
+   pkgPackageManager::SigINTStop = true;
+}
                                                                        /*}}}*/
 // pkgDpkgPM::Reset - Dump the contents of the command list            /*{{{*/
 // ---------------------------------------------------------------------
@@ -1294,6 +1470,12 @@ void pkgDPkgPM::Reset()
 /* */
 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
+   pkgCache::PkgIterator apportPkg = Cache.FindPkg("apport");
+   if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
+      return;
+
    string pkgname, reportfile, srcpkgname, pkgver, arch;
    string::size_type pos;
    FILE *report;
@@ -1381,7 +1563,7 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
         if(strstr(strbuf,"Package:") == strbuf)
         {
            char pkgname[255], version[255];
-           if(sscanf(strbuf, "Package: %s %s", pkgname, version) == 2)
+           if(sscanf(strbuf, "Package: %254s %254s", pkgname, version) == 2)
               if(strcmp(pkgver.c_str(), version) == 0)
               {
                  fclose(report);
@@ -1410,8 +1592,8 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    fprintf(report, "ErrorMessage:\n %s\n", errormsg);
 
    // ensure that the log is flushed
-   if(term_out)
-      fflush(term_out);
+   if(d->term_out)
+      fflush(d->term_out);
 
    // attach terminal log it if we have it
    string logfile_name = _config->FindFile("Dir::Log::Terminal");
@@ -1433,7 +1615,7 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    // log the ordering 
    const char *ops_str[] = {"Install", "Configure","Remove","Purge"};
    fprintf(report, "AptOrdering:\n");
-   for (vector<Item>::iterator I = List.begin(); I != List.end(); I++)
+   for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
       fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]);
 
    // attach dmesg log (to learn about segfaults)