handle packages without a mandatory architecture (debian-policy §5.3)

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 99c28d201639eb8edd7f25fa8ed74b10b778b33d..c9df41d3a36a173bee5e70261d6170b5595d5ceb 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -51,8 +51,10 @@ using namespace std;
 class pkgDPkgPMPrivate 
 {
 public:
 class pkgDPkgPMPrivate 
 {
 public:

-   pkgDPkgPMPrivate() : dpkgbuf_pos(0), term_out(NULL), history_out(NULL)
+   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
    }
    bool stdin_is_dev_null;
    // the buffer we use for the dpkg status-fd reading


@@ -123,6 +125,45 @@ 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);
+}
+                                                                       /*}}}*/
+
+
+// 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;
+}
+                                                                       /*}}}*/
+

 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */


@@ -146,7 +187,7 @@ pkgDPkgPM::~pkgDPkgPM()
 bool pkgDPkgPM::Install(PkgIterator Pkg,string File)
 {
    if (File.empty() == true || Pkg.end() == true)
 bool pkgDPkgPM::Install(PkgIterator Pkg,string File)
 {
    if (File.empty() == true || Pkg.end() == true)

-      return _error->Error("Internal Error, No file name for %s",Pkg.Name());
+      return _error->Error("Internal Error, No file name for %s",Pkg.FullName().c_str());

 
    // If the filename string begins with DPkg::Chroot-Directory, return the
    // substr that is within the chroot so dpkg can access it.
 
    // If the filename string begins with DPkg::Chroot-Directory, return the
    // substr that is within the chroot so dpkg can access it.


@@ -328,15 +369,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
         SetCloseExec(STDIN_FILENO,false);      
         SetCloseExec(STDERR_FILENO,false);
 
         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";
         const char *Args[4];
         Args[0] = "/bin/sh";
         Args[1] = "-c";


@@ -392,7 +425,7 @@ void pkgDPkgPM::DoStdin(int master)
    unsigned char input_buf[256] = {0,}; 
    ssize_t len = read(0, input_buf, sizeof(input_buf));
    if (len)
    unsigned char input_buf[256] = {0,}; 
    ssize_t len = read(0, input_buf, sizeof(input_buf));
    if (len)

-      write(master, input_buf, len);
+      FileFd::Write(master, input_buf, len);

    else
       d->stdin_is_dev_null = true;
 }
    else
       d->stdin_is_dev_null = true;
 }


@@ -418,7 +451,7 @@ void pkgDPkgPM::DoTerminalPty(int master)
    }  
    if(len <= 0) 
       return;
    }  
    if(len <= 0) 
       return;

-   write(1, term_buf, len);
+   FileFd::Write(1, term_buf, len);

    if(d->term_out)
       fwrite(term_buf, len, sizeof(char), d->term_out);
 }
    if(d->term_out)
       fwrite(term_buf, len, sizeof(char), d->term_out);
 }


@@ -493,7 +526,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)

-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        FileFd::Write(OutStatusFd, status.str().c_str(), status.str().size());

       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
 
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
 


@@ -517,7 +550,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)

-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        FileFd::Write(OutStatusFd, status.str().c_str(), status.str().size());

       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       pkgFailures++;
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       pkgFailures++;


@@ -531,7 +564,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)
             << ":" << list[3]
             << endl;
       if(OutStatusFd > 0)

-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        FileFd::Write(OutStatusFd, status.str().c_str(), status.str().size());

       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       return;
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
       return;


@@ -559,7 +592,7 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)
             << ":" << s
             << endl;
       if(OutStatusFd > 0)

-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        FileFd::Write(OutStatusFd, status.str().c_str(), status.str().size());

       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
    }
       if (Debug == true)
         std::clog << "send: '" << status.str() << "'" << endl;
    }


@@ -705,6 +738,7 @@ bool pkgDPkgPM::OpenLog()
       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());
       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());

+      SetCloseExec(fileno(d->history_out), true);

       chmod(history_name.c_str(), 0644);
       fprintf(d->history_out, "\nStart-Date: %s\n", timestr);
       string remove, purge, install, reinstall, upgrade, downgrade;
       chmod(history_name.c_str(), 0644);
       fprintf(d->history_out, "\nStart-Date: %s\n", timestr);
       string remove, purge, install, reinstall, upgrade, downgrade;


@@ -829,10 +863,22 @@ static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {

+   pkgPackageManager::SigINTStop = false;
+

    // Generate the base argument list for dpkg
    std::vector<const char *> Args;
    unsigned long StartSize = 0;
    // Generate the base argument list for dpkg
    std::vector<const char *> Args;
    unsigned long StartSize = 0;

-   string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+   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();
 
    Args.push_back(Tmp.c_str());
    StartSize += Tmp.length();
 


@@ -858,12 +904,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    pid_t dpkgAssertMultiArch = ExecFork();
    if (dpkgAssertMultiArch == 0)
    {
    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);
       // 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);

-      execv(Args[0], (char**) &Args[0]);
+      execvp(Args[0], (char**) &Args[0]);

       _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
       _exit(2);
    }
       _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
       _exit(2);
    }


@@ -1009,7 +1056,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       }
 
       int fd[2];
       }
 
       int fd[2];

-      pipe(fd);
+      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
 
 #define ADDARG(X) Args.push_back(X); Size += strlen(X)
 #define ADDARGC(X) Args.push_back(X); Size += sizeof(X) - 1


@@ -1083,7 +1131,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end())
               continue;
            // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
            if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != 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 || !strcmp(I->Pkg.Arch(), "all")))
+           if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||
+                                          strcmp(I->Pkg.Arch(), "all") == 0 ||
+                                          strcmp(I->Pkg.Arch(), "none") == 0))

            {
               char const * const name = I->Pkg.Name();
               ADDARG(name);
            {
               char const * const name = I->Pkg.Name();
               ADDARG(name);


@@ -1092,11 +1142,20 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            {
               pkgCache::VerIterator PkgVer;
               std::string name = I->Pkg.Name();
            {
               pkgCache::VerIterator PkgVer;
               std::string name = I->Pkg.Name();

-              if (Op == Item::Remove || Op == Item::Purge)
-                  PkgVer = I->Pkg.CurrentVer();
+              if (Op == Item::Remove || Op == Item::Purge) 
+               {
+                 PkgVer = I->Pkg.CurrentVer();
+                  if(PkgVer.end() == true)
+                     PkgVer = FindNowVersion(I->Pkg);
+               }

               else
               else

-                  PkgVer = Cache[I->Pkg].InstVerIter(Cache);
-              name.append(":").append(PkgVer.Arch());
+                 PkgVer = Cache[I->Pkg].InstVerIter(Cache);
+              if (strcmp(I->Pkg.Arch(), "none") == 0)
+                 ; // never arch-qualify a package without an arch
+              else 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);
               char * const fullname = strdup(name.c_str());
               Packages.push_back(fullname);
               ADDARG(fullname);


@@ -1183,7 +1242,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
                << (PackagesDone/float(PackagesTotal)*100.0) 
                << ":" << _("Running dpkg")
                << endl;
                << (PackagesDone/float(PackagesTotal)*100.0) 
                << ":" << _("Running dpkg")
                << endl;

-        write(OutStatusFd, status.str().c_str(), status.str().size());
+        FileFd::Write(OutStatusFd, status.str().c_str(), status.str().size());

       }
       Child = ExecFork();
             
       }
       Child = ExecFork();
             


@@ -1202,14 +1261,7 @@ 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);
-        }
+        dpkgChrootDirectory();

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


@@ -1387,9 +1439,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 }
 
 void SigINT(int sig) {
 }
 
 void SigINT(int sig) {

-   if (_config->FindB("APT::Immediate-Configure-All",false)) 
-      pkgPackageManager::SigINTStop = true;
-} 
+   pkgPackageManager::SigINTStop = true;
+}

                                                                        /*}}}*/
 // pkgDpkgPM::Reset - Dump the contents of the command list            /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // pkgDpkgPM::Reset - Dump the contents of the command list            /*{{{*/
 // ---------------------------------------------------------------------


@@ -1404,6 +1455,12 @@ void pkgDPkgPM::Reset()
 /* */
 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
+   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;
    string pkgname, reportfile, srcpkgname, pkgver, arch;
    string::size_type pos;
    FILE *report;


@@ -1491,7 +1548,7 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
         if(strstr(strbuf,"Package:") == strbuf)
         {
            char pkgname[255], version[255];
         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);
               if(strcmp(pkgver.c_str(), version) == 0)
               {
                  fclose(report);


@@ -1544,7 +1601,10 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    const char *ops_str[] = {"Install", "Configure","Remove","Purge"};
    fprintf(report, "AptOrdering:\n");
    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
    const char *ops_str[] = {"Install", "Configure","Remove","Purge"};
    fprintf(report, "AptOrdering:\n");
    for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)

-      fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]);
+      if ((*I).Pkg != NULL)
+         fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]);
+      else
+         fprintf(report, " %s: %s\n", "NULL", ops_str[(*I).Op]);

 
    // attach dmesg log (to learn about segfaults)
    if (FileExists("/bin/dmesg"))
 
    // attach dmesg log (to learn about segfaults)
    if (FileExists("/bin/dmesg"))