* apt-pkg/pkgcache.cc:

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 36086d72e06553bba81d1a145a9c3f3c56fdcb9a..f787f365e6ddb97a24fe99f1d8b83ae8d6f8dda6 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -14,6 +14,7 @@
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/strutl.h>
 #include <apti18n.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/strutl.h>
 #include <apti18n.h>

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

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


@@ -24,6 +25,8 @@
 #include <signal.h>
 #include <errno.h>
 #include <stdio.h>
 #include <signal.h>
 #include <errno.h>
 #include <stdio.h>

+#include <string.h>
+#include <algorithm>

 #include <sstream>
 #include <map>
 
 #include <sstream>
 #include <map>
 


@@ -38,14 +41,70 @@
 
 using namespace std;
 
 
 using namespace std;
 

+namespace
+{
+  // Maps the dpkg "processing" info to human readable names.  Entry 0
+  // of each array is the key, entry 1 is the value.
+  const std::pair<const char *, const char *> PackageProcessingOps[] = {
+    std::make_pair("install",   N_("Installing %s")),
+    std::make_pair("configure", N_("Configuring %s")),
+    std::make_pair("remove",    N_("Removing %s")),
+    std::make_pair("trigproc",  N_("Running post-installation trigger %s"))
+  };
+
+  const std::pair<const char *, const char *> * const PackageProcessingOpsBegin = PackageProcessingOps;
+  const std::pair<const char *, const char *> * const PackageProcessingOpsEnd   = PackageProcessingOps + sizeof(PackageProcessingOps) / sizeof(PackageProcessingOps[0]);
+
+  // Predicate to test whether an entry in the PackageProcessingOps
+  // array matches a string.
+  class MatchProcessingOp
+  {
+    const char *target;

 
 

+  public:
+    MatchProcessingOp(const char *the_target)
+      : target(the_target)
+    {
+    }
+
+    bool operator()(const std::pair<const char *, const char *> &pair) const
+    {
+      return strcmp(pair.first, target) == 0;
+    }
+  };
+}
+
+/* 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;
+   pid_t Process = ExecFork();      
+   if (Process == 0)
+   {
+      char buf[32];
+      snprintf(buf, sizeof(buf), "-p%d", PID);
+      const char *Args[4];
+      Args[0] = "/usr/bin/ionice";
+      Args[1] = "-c3";
+      Args[2] = buf;
+      Args[3] = 0;
+      execv(Args[0], (char **)Args);
+   }
+   return ExecWait(Process, "ionice");
+}

 
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 
 
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 

-   : pkgPackageManager(Cache), dpkgbuf_pos(0), PackagesDone(0), 
-     PackagesTotal(0), term_out(NULL)
+   : pkgPackageManager(Cache), dpkgbuf_pos(0),
+     term_out(NULL), PackagesDone(0), PackagesTotal(0)

 {
 }
                                                                        /*}}}*/
 {
 }
                                                                        /*}}}*/


@@ -95,68 +154,6 @@ bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

-// DPkgPM::RunScripts - Run a set of scripts                           /*{{{*/
-// ---------------------------------------------------------------------
-/* This looks for a list of script sto run from the configuration file,
-   each one is run with system from a forked child. */
-bool pkgDPkgPM::RunScripts(const char *Cnf)
-{
-   Configuration::Item const *Opts = _config->Tree(Cnf);
-   if (Opts == 0 || Opts->Child == 0)
-      return true;
-   Opts = Opts->Child;
-
-   // Fork for running the system calls
-   pid_t Child = ExecFork();
-   
-   // This is the child
-   if (Child == 0)
-   {
-      if (chdir("/tmp/") != 0)
-        _exit(100);
-        
-      unsigned int Count = 1;
-      for (; Opts != 0; Opts = Opts->Next, Count++)
-      {
-        if (Opts->Value.empty() == true)
-           continue;
-        
-        if (system(Opts->Value.c_str()) != 0)
-           _exit(100+Count);
-      }
-      _exit(0);
-   }      
-
-   // Wait for the child
-   int Status = 0;
-   while (waitpid(Child,&Status,0) != Child)
-   {
-      if (errno == EINTR)
-        continue;
-      return _error->Errno("waitpid","Couldn't wait for subprocess");
-   }
-
-   // Restore sig int/quit
-   signal(SIGQUIT,SIG_DFL);
-   signal(SIGINT,SIG_DFL);   
-
-   // Check for an error code.
-   if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
-   {
-      unsigned int Count = WEXITSTATUS(Status);
-      if (Count > 100)
-      {
-        Count -= 100;
-        for (; Opts != 0 && Count != 1; Opts = Opts->Next, Count--);
-        _error->Error("Problem executing scripts %s '%s'",Cnf,Opts->Value.c_str());
-      }
-      
-      return _error->Error("Sub-process returned an error code");
-   }
-   
-   return true;
-}
-                                                                        /*}}}*/

 // DPkgPM::SendV2Pkgs - Send version 2 package info                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This is part of the helper script communication interface, it sends
 // DPkgPM::SendV2Pkgs - Send version 2 package info                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This is part of the helper script communication interface, it sends


@@ -342,9 +339,12 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 */
 void pkgDPkgPM::DoStdin(int master)
 {
 */
 void pkgDPkgPM::DoStdin(int master)
 {

-   char input_buf[256] = {0,}; 
-   int len = read(0, input_buf, sizeof(input_buf));
-   write(master, input_buf, len);
+   unsigned char input_buf[256] = {0,}; 
+   ssize_t len = read(0, input_buf, sizeof(input_buf));
+   if (len)
+      write(master, input_buf, len);
+   else
+      stdin_is_dev_null = true;

 }
                                                                        /*}}}*/
 // DPkgPM::DoTerminalPty - Read the terminal pty and write log         /*{{{*/
 }
                                                                        /*}}}*/
 // DPkgPM::DoTerminalPty - Read the terminal pty and write log         /*{{{*/


@@ -354,10 +354,18 @@ void pkgDPkgPM::DoStdin(int master)
  */
 void pkgDPkgPM::DoTerminalPty(int master)
 {
  */
 void pkgDPkgPM::DoTerminalPty(int master)
 {

-   char term_buf[1024] = {0,};
+   unsigned char term_buf[1024] = {0,0, };

 
 

-   int len=read(master, term_buf, sizeof(term_buf));
-   if(len <= 0)
+   ssize_t len=read(master, term_buf, sizeof(term_buf));
+   if(len == -1 && errno == EIO)
+   {
+      // this happens when the child is about to exit, we
+      // give it time to actually exit, otherwise we run
+      // into a race
+      usleep(500000);
+      return;
+   }  
+   if(len <= 0) 

       return;
    write(1, term_buf, len);
    if(term_out)
       return;
    write(1, term_buf, len);
    if(term_out)


@@ -383,6 +391,12 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
       '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
       '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: trigproc: trigger'

            
    */
    char* list[5];
            
    */
    char* list[5];


@@ -392,12 +406,42 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
    //        statusfd or by rewriting the code here to deal with
    //        it. for now we just ignore it and not crash
    TokSplitString(':', line, list, sizeof(list)/sizeof(list[0]));
    //        statusfd or by rewriting the code here to deal with
    //        it. for now we just ignore it and not crash
    TokSplitString(':', line, list, sizeof(list)/sizeof(list[0]));

+   if( list[0] == NULL || list[1] == NULL || list[2] == NULL) 
+   {
+      if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+        std::clog << "ignoring line: not enough ':'" << std::endl;
+      return;
+   }

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

-   if( pkg == NULL || action == NULL) 
+
+   // 'processing' from dpkg looks like
+   // 'processing: action: pkg'
+   if(strncmp(list[0], "processing", strlen("processing")) == 0)

    {
    {

+      char s[200];
+      char *pkg_or_trigger = _strstrip(list[2]);
+      action =_strstrip( list[1]);
+      const std::pair<const char *, const char *> * const iter =
+       std::find_if(PackageProcessingOpsBegin,
+                    PackageProcessingOpsEnd,
+                    MatchProcessingOp(action));
+      if(iter == PackageProcessingOpsEnd)
+      {
+        if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
+           std::clog << "ignoring unknwon action: " << action << std::endl;
+        return;
+      }
+      snprintf(s, sizeof(s), _(iter->second), pkg_or_trigger);
+
+      status << "pmstatus:" << pkg_or_trigger
+            << ":"  << (PackagesDone/float(PackagesTotal)*100.0) 
+            << ":" << s
+            << endl;
+      if(OutStatusFd > 0)
+        write(OutStatusFd, status.str().c_str(), status.str().size());

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

-        std::clog << "ignoring line: not enough ':'" << std::endl;
+        std::clog << "send: '" << status.str() << "'" << endl;

       return;
    }
 
       return;
    }
 


@@ -495,6 +539,67 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
 }
                                                                        /*}}}*/
 
 }
                                                                        /*}}}*/
 

+bool pkgDPkgPM::OpenLog()
+{
+   string logdir = _config->FindDir("Dir::Log");
+   if(not FileExists(logdir))
+      return _error->Error(_("Directory '%s' missing"), logdir.c_str());
+   string logfile_name = flCombine(logdir,
+                                  _config->Find("Dir::Log::Terminal"));
+   if (!logfile_name.empty())
+   {
+      term_out = fopen(logfile_name.c_str(),"a");
+      chmod(logfile_name.c_str(), 0600);
+      // output current time
+      char outstr[200];
+      time_t t = time(NULL);
+      struct tm *tmp = localtime(&t);
+      strftime(outstr, sizeof(outstr), "%F  %T", tmp);
+      fprintf(term_out, "\nLog started: ");
+      fprintf(term_out, "%s", outstr);
+      fprintf(term_out, "\n");
+   }
+   return true;
+}
+
+bool pkgDPkgPM::CloseLog()
+{
+   if(term_out)
+   {
+      char outstr[200];
+      time_t t = time(NULL);
+      struct tm *tmp = localtime(&t);
+      strftime(outstr, sizeof(outstr), "%F  %T", tmp);
+      fprintf(term_out, "Log ended: ");
+      fprintf(term_out, "%s", outstr);
+      fprintf(term_out, "\n");
+      fclose(term_out);
+   }
+   term_out = NULL;
+   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)
+{
+   sigset_t origmask;
+   struct timeval tv;
+   int retval;
+
+   tv.tv_sec = timeout->tv_sec;
+   tv.tv_usec = timeout->tv_nsec/1000;
+
+   sigprocmask(SIG_SETMASK, sigmask, &origmask);
+   retval = select(nfds, readfds, writefds, exceptfds, &tv);
+   sigprocmask(SIG_SETMASK, &origmask, 0);
+   return retval;
+}
+/*}}}*/

 
 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------
 
 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------


@@ -507,15 +612,21 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd)
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {

+   fd_set rfds;
+   struct timespec tv;
+   sigset_t sigmask;
+   sigset_t original_sigmask;
+

    unsigned int MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);   
    unsigned int MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);
    unsigned int MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);   
    unsigned int MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);

+   bool NoTriggers = _config->FindB("DPkg::NoTriggers",false);

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

-   
+

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


@@ -529,20 +640,12 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       { 
         {"unpacked",N_("Preparing to configure %s") },
         {"half-configured", N_("Configuring %s") },
       { 
         {"unpacked",N_("Preparing to configure %s") },
         {"half-configured", N_("Configuring %s") },

-#if 0
-        {"triggers-awaited", N_("Processing triggers for %s") },
-        {"triggers-pending", N_("Processing triggers for %s") },
-#endif

         { "installed", N_("Installed %s")},
         {NULL, NULL}
       },
       // Remove operation
       { 
         {"half-configured", N_("Preparing for removal of %s")},
         { "installed", N_("Installed %s")},
         {NULL, NULL}
       },
       // Remove operation
       { 
         {"half-configured", N_("Preparing for removal of %s")},

-#if 0
-        {"triggers-awaited", N_("Preparing for removal of %s")},
-        {"triggers-pending", N_("Preparing for removal of %s")},
-#endif

         {"half-installed", N_("Removing %s")},
         {"config-files",  N_("Removed %s")},
         {NULL, NULL}
         {"half-installed", N_("Removing %s")},
         {"config-files",  N_("Removed %s")},
         {NULL, NULL}


@@ -570,34 +673,28 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       }
    }   
 
       }
    }   
 

+   stdin_is_dev_null = false;
+

    // create log
    // create log

-   string logdir = _config->FindDir("Dir::Log");
-   if(not FileExists(logdir))
-      return _error->Error(_("Directory '%s' missing"), logdir.c_str());
-   string logfile_name = flCombine(logdir,
-                                  _config->Find("Dir::Log::Terminal"));
-   if (!logfile_name.empty())
-   {
-      term_out = fopen(logfile_name.c_str(),"a");
-      chmod(logfile_name.c_str(), 0600);
-      // output current time
-      char outstr[200];
-      time_t t = time(NULL);
-      struct tm *tmp = localtime(&t);
-      strftime(outstr, sizeof(outstr), "%F  %T", tmp);
-      fprintf(term_out, "\nLog started: ");
-      fprintf(term_out, outstr);
-      fprintf(term_out, "\n");
-   }
+   OpenLog();

 
    // this loop is runs once per operation
    for (vector<Item>::iterator I = List.begin(); I != List.end();)
    {
       vector<Item>::iterator J = I;
 
    // this loop is runs once per operation
    for (vector<Item>::iterator I = List.begin(); I != List.end();)
    {
       vector<Item>::iterator J = I;

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

+      
+      // 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 

       if (J - I > (signed)MaxArgs)
         J = I + MaxArgs;
       
       if (J - I > (signed)MaxArgs)
         J = I + MaxArgs;
       


@@ -653,6 +750,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         
         case Item::Configure:
         Args[n++] = "--configure";
         
         case Item::Configure:
         Args[n++] = "--configure";

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

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


@@ -705,6 +804,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
       sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN);
 
       sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
       sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN);
 

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

       struct   termios tt;
       struct   winsize win;
       int      master;
       struct   termios tt;
       struct   winsize win;
       int      master;


@@ -725,12 +827,28 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         rtt = tt;
         cfmakeraw(&rtt);
         rtt.c_lflag &= ~ECHO;
         rtt = tt;
         cfmakeraw(&rtt);
         rtt.c_lflag &= ~ECHO;

+        // block SIGTTOU during tcsetattr to prevent a hang if
+        // the process is a member of the background process group
+        // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html
+        sigemptyset(&sigmask);
+        sigaddset(&sigmask, SIGTTOU);
+        sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask);

         tcsetattr(0, TCSAFLUSH, &rtt);
         tcsetattr(0, TCSAFLUSH, &rtt);

+        sigprocmask(SIG_SETMASK, &original_sigmask, 0);

       }
 
        // Fork dpkg
       pid_t Child;
       _config->Set("APT::Keep-Fds::",fd[1]);
       }
 
        // Fork dpkg
       pid_t Child;
       _config->Set("APT::Keep-Fds::",fd[1]);

+      // send status information that we are about to fork dpkg
+      if(OutStatusFd > 0) {
+        ostringstream status;
+        status << "pmstatus:dpkg-exec:" 
+               << (PackagesDone/float(PackagesTotal)*100.0) 
+               << ":" << _("Running dpkg")
+               << endl;
+        write(OutStatusFd, status.str().c_str(), status.str().size());
+      }

       Child = ExecFork();
             
       // This is the child
       Child = ExecFork();
             
       // This is the child


@@ -748,6 +866,15 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         }
         close(fd[0]); // close the read end of the pipe
 
         }
         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);
+        }
+

         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
         
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
         


@@ -767,15 +894,18 @@ bool pkgDPkgPM::Go(int OutStatusFd)
               _exit(100);
         }
 
               _exit(100);
         }
 

-

         /* No Job Control Stop Env is a magic dpkg var that prevents it
            from using sigstop */
         /* No Job Control Stop Env is a magic dpkg var that prevents it
            from using sigstop */

-        putenv("DPKG_NO_TSTP=yes");
+        putenv((char *)"DPKG_NO_TSTP=yes");

         execvp(Args[0],(char **)Args);
         cerr << "Could not exec dpkg!" << endl;
         _exit(100);
       }      
 
         execvp(Args[0],(char **)Args);
         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]);
 
       // clear the Keep-Fd again
       _config->Clear("APT::Keep-Fds",fd[1]);
 


@@ -792,8 +922,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         close(slave);
 
       // setups fds
         close(slave);
 
       // setups fds

-      fd_set rfds;
-      struct timeval tv;
+      sigemptyset(&sigmask);
+      sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
+

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


@@ -806,24 +937,34 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            // 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);

            return _error->Errno("waitpid","Couldn't wait for subprocess");
         }
 
         // wait for input or output here
         FD_ZERO(&rfds);
            return _error->Errno("waitpid","Couldn't wait for subprocess");
         }
 
         // wait for input or output here
         FD_ZERO(&rfds);

-        FD_SET(0, &rfds); 
+        if (!stdin_is_dev_null)
+           FD_SET(0, &rfds); 

         FD_SET(_dpkgin, &rfds);
         if(master >= 0)
            FD_SET(master, &rfds);
         tv.tv_sec = 1;
         FD_SET(_dpkgin, &rfds);
         if(master >= 0)
            FD_SET(master, &rfds);
         tv.tv_sec = 1;

-        tv.tv_usec = 0;
-        select_ret = select(max(master, _dpkgin)+1, &rfds, NULL, NULL, &tv);
-        if (select_ret < 0) {
-           std::cerr << "Error in select()" << std::endl;
-           continue;
-        } else if (select_ret == 0)
-           continue;
-
+        tv.tv_nsec = 0;
+        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 (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))
         if(master >= 0 && FD_ISSET(master, &rfds))
            DoTerminalPty(master);
         if(master >= 0 && FD_ISSET(0, &rfds))


@@ -836,9 +977,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       // 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);

 
 

-      if(master >= 0 && slave >= 0)
+      if(master >= 0) 
+      {

         tcsetattr(0, TCSAFLUSH, &tt);
         tcsetattr(0, TCSAFLUSH, &tt);

+        close(master);
+      }

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


@@ -860,17 +1005,17 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
         if(stopOnError) 
         {
 
         if(stopOnError) 
         {

-           if(term_out)
-              fclose(term_out);
+           CloseLog();

            return false;
         }
       }      
    }
            return false;
         }
       }      
    }

-   if(term_out)
-      fclose(term_out);
+   CloseLog();

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

+
+   Cache.writeStateFile(NULL);

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