implement the updated build profile spec

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 613a4de9fff75e2963d3d6618bc9859900e104c7..04a13a86c08288e0ba8b7f074218c353456a9cf4 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -59,8 +59,8 @@ 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), 
-                        progress(NULL), master(-1), slave(-1)
+                       term_out(NULL), history_out(NULL),
+                        progress(NULL), master(-1), slave(NULL)

    {
       dpkgbuf[0] = '\0';
    }
    {
       dpkgbuf[0] = '\0';
    }


@@ -77,9 +77,9 @@ public:
    APT::Progress::PackageManager *progress;
 
    // pty stuff
    APT::Progress::PackageManager *progress;
 
    // pty stuff

-   struct      termios tt;
+   struct termios tt;

    int master;
    int master;

-   int slave;
+   char * slave;

 
    // signals
    sigset_t sigmask;
 
    // signals
    sigset_t sigmask;


@@ -510,7 +510,7 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
    return result;
 }
                                                                        /*}}}*/
    return result;
 }
                                                                        /*}}}*/

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

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


@@ -564,8 +564,8 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
       'status:   <pkg>: <pkg  qstate>'
       'status:   <pkg>:<arch>: <pkg  qstate>'
       
       'status:   <pkg>: <pkg  qstate>'
       'status:   <pkg>:<arch>: <pkg  qstate>'
       

-      'processing: {install,configure,remove,purge,disappear,trigproc}: pkg'
-      'processing: {install,configure,remove,purge,disappear,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
    */
 
    // we need to split on ": " (note the appended space) as the ':' is


@@ -589,12 +589,15 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
    std::string action;
 
    // "processing" has the form "processing: action: pkg or trigger"
    std::string action;
 
    // "processing" has the form "processing: action: pkg or trigger"

-   // with action = ["install", "configure", "remove", "purge", "disappear",
-   //                "trigproc"]
+   // with action = ["install", "upgrade", "configure", "remove", "purge",
+   //                "disappear", "trigproc"]

    if (prefix == "processing")
    {
       pkgname = APT::String::Strip(list[2]);
       action = APT::String::Strip(list[1]);
    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", 
    }
    // "status" has the form: "status: pkg: state"
    // with state in ["half-installed", "unpacked", "half-configured", 


@@ -621,15 +624,15 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
    {
       if(action == "error")
       {
    {
       if(action == "error")
       {

-         d->progress->Error(list[1], PackagesDone, PackagesTotal,
+         d->progress->Error(pkgname, PackagesDone, PackagesTotal,

                             list[3]);
          pkgFailures++;
                             list[3]);
          pkgFailures++;

-         WriteApportReport(list[1].c_str(), list[3].c_str());
+         WriteApportReport(pkgname.c_str(), list[3].c_str());

          return;
       }
       else if(action == "conffile-prompt")
       {
          return;
       }
       else if(action == "conffile-prompt")
       {

-         d->progress->ConffilePrompt(list[1], PackagesDone, PackagesTotal,
+         d->progress->ConffilePrompt(pkgname, PackagesDone, PackagesTotal,

                                      list[3]);
          return;
       }
                                      list[3]);
          return;
       }


@@ -638,27 +641,26 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
    // at this point we know that we should have a valid pkgname, so build all 
    // the info from it
 
    // at this point we know that we should have a valid pkgname, so build all 
    // the info from it
 

-   // dpkg does not send always send "pkgname:arch" so we add it here 
-   // if needed
+   // 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].Mode != pkgDepCache::ModeKeep)
-              {
-                  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();
    std::string short_pkgname = StringSplit(pkgname, ":")[0];
    std::string arch = "";
    const char* const pkg = pkgname.c_str();
    std::string short_pkgname = StringSplit(pkgname, ":")[0];
    std::string arch = "";


@@ -697,28 +699,29 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
    if (prefix == "status")
    {
       vector<struct DpkgState> const &states = PackageOps[pkg];
    if (prefix == "status")
    {
       vector<struct DpkgState> const &states = PackageOps[pkg];

-      const char *next_action = NULL;

       if(PackageOpsDone[pkg] < states.size())
       if(PackageOpsDone[pkg] < states.size())

-         next_action = states[PackageOpsDone[pkg]].state;
-      // check if the package moved to the next dpkg state
-      if(next_action && (action == next_action))

       {
       {

-         // only read the translation if there is actually a next
-         // action
-         const char *translation = _(states[PackageOpsDone[pkg]].str);
-         std::string msg;
-
-         // we moved from one dpkg state to a new one, report that
-         PackageOpsDone[pkg]++;
-         PackagesDone++;
-
-         strprintf(msg, translation, i18n_pkgname.c_str());
-         d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
-         
+         char const * const next_action = states[PackageOpsDone[pkg]].state;
+        if (next_action && 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(next_action && (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: " << short_pkgname
-                   << " action: " << action << endl;

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


@@ -1048,60 +1051,127 @@ void pkgDPkgPM::StartPtyMagic()
 {
    if (_config->FindB("Dpkg::Use-Pty", true) == false)
    {
 {
    if (_config->FindB("Dpkg::Use-Pty", true) == false)
    {

-      d->master = d->slave = -1;
+      d->master = -1;
+      if (d->slave != NULL)
+        free(d->slave);
+      d->slave = NULL;

       return;
    }
 
       return;
    }
 

-   // setup the pty and stuff
-   struct winsize win;
-
+   _error->PushToStack();

    // if tcgetattr for both stdin/stdout returns 0 (no error)
    // we do the pty magic
    // if tcgetattr for both stdin/stdout returns 0 (no error)
    // we do the pty magic

-   _error->PushToStack();
-   if (tcgetattr(STDIN_FILENO, &d->tt) == 0 &&
-       tcgetattr(STDOUT_FILENO, &d->tt) == 0)
+   if (tcgetattr(STDOUT_FILENO, &d->tt) == 0 &&
+        tcgetattr(STDIN_FILENO, &d->tt) == 0)

    {
    {

-       if (ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&win) < 0)
-       {
-           _error->Errno("ioctl", _("ioctl(TIOCGWINSZ) failed"));
-       } else if (openpty(&d->master, &d->slave, NULL, &d->tt, &win) < 0)
-       {
-           _error->Errno("openpty", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
-           d->master = d->slave = -1;
-        } else {
-           struct termios rtt;
-           rtt = d->tt;
-           cfmakeraw(&rtt);
-           rtt.c_lflag &= ~ECHO;
-           rtt.c_lflag |= ISIG;
+      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);
+        close(d->master);
+        d->master = -1;
+      }
+      else
+      {
+        char const * const slave_name = ptsname(d->master);
+        if (slave_name == NULL)
+        {
+           _error->Errno("unlockpt", "Getting name for slave of master fd %d failed!", d->master);
+           close(d->master);
+           d->master = -1;
+        }
+        else
+        {
+           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);
+              close(d->master);
+              d->master = -1;
+           }
+           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);
+
+           struct termios raw_tt;
+           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);
            // 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);

-           tcsetattr(0, TCSAFLUSH, &rtt);
-           sigprocmask(SIG_SETMASK, &d->original_sigmask, 0);
-        }
+           if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1)
+              _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdout failed!");
+           sigprocmask(SIG_SETMASK, &d->original_sigmask, NULL);
+        }

       }
       }

-   // complain only if stdout is either a terminal (but still failed) or is an invalid
+   }
+   else
+   {
+      // 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.
       // 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 (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();
+   if (_error->PendingError() == true)
+   {
+      if (d->master != -1)
+      {
+        close(d->master);
+        d->master = -1;
+      }
+      _error->DumpErrors(std::cerr);
+   }
+   _error->RevertToStack();

 }
 }

+void pkgDPkgPM::SetupSlavePtyMagic()
+{
+   if(d->master == -1)
+      return;
+
+   if (close(d->master) == -1)
+      _error->FatalE("close", "Closing master %d in child failed!", d->master);
+   if (setsid() == -1)
+      _error->FatalE("setsid", "Starting a new session for child failed!");
+
+   int const slaveFd = open(d->slave, O_RDWR);
+   if (slaveFd == -1)
+      _error->FatalE("open", _("Can not write log (%s)"), _("Is /dev/pts mounted?"));
+
+   if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
+      _error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd);
+   else
+   {
+      for (unsigned short i = 0; i < 3; ++i)
+        if (dup2(slaveFd, i) == -1)
+           _error->FatalE("dup2", "Dupping %d to %d in child failed!", slaveFd, i);

 
 

+      if (tcsetattr(0, TCSANOW, &d->tt) < 0)
+        _error->FatalE("tcsetattr", "Setting in Setup via TCSANOW for slave fd %d failed!", slaveFd);
+   }
+}

 void pkgDPkgPM::StopPtyMagic()
 {
 void pkgDPkgPM::StopPtyMagic()
 {

-   if(d->slave > 0)
-      close(d->slave);
+   if (d->slave != NULL)
+      free(d->slave);
+   d->slave = NULL;

    if(d->master >= 0) 
    {
    if(d->master >= 0) 
    {

-      tcsetattr(0, TCSAFLUSH, &d->tt);
+      if (tcsetattr(0, TCSAFLUSH, &d->tt) == -1)
+        _error->FatalE("tcsetattr", "Setting in Stop via TCSAFLUSH for stdin failed!");

       close(d->master);
       close(d->master);

+      d->master = -1;

    }
 }
 
    }
 }
 


@@ -1413,22 +1483,8 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress)
       pid_t Child = ExecFork(KeepFDs);
       if (Child == 0)
       {
       pid_t Child = ExecFork(KeepFDs);
       if (Child == 0)
       {

-         // This is the child
-        if(d->slave >= 0 && d->master >= 0) 
-        {
-           setsid();
-           int res = ioctl(d->slave, TIOCSCTTY, 0);
-            if (res < 0) {
-               std::cerr << "ioctl(TIOCSCTTY) failed for fd: " 
-                         << d->slave << std::endl;
-            } else {
-               close(d->master);
-               dup2(d->slave, 0);
-               dup2(d->slave, 1);
-               dup2(d->slave, 2);
-               close(d->slave);
-            }
-        }
+        // This is the child
+        SetupSlavePtyMagic();

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


@@ -1668,9 +1724,10 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    // 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;
    // 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 on buffer copy for %s"));
-   io_errors.push_back(string("failed in write on buffer copy for %s"));
-   io_errors.push_back(string("short read on buffer copy for %s"));
+   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)
    {
 
    for (vector<string>::iterator I = io_errors.begin(); I != io_errors.end(); ++I)
    {