add missing changelog entry

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 343e3d82f7b0fb2cc016773a6e0ae940c1b8014a..11bf827d7082e7255eae313f14cf6dc90584a4fe 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -44,7 +44,8 @@ using namespace std;
 // ---------------------------------------------------------------------
 /* */
 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 
 // ---------------------------------------------------------------------
 /* */
 pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) 

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

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


@@ -341,9 +342,12 @@ 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         /*{{{*/


@@ -351,12 +355,20 @@ void pkgDPkgPM::DoStdin(int master)
 /*
  * read the terminal pty and write log
  */
 /*
  * read the terminal pty and write log
  */

-void pkgDPkgPM::DoTerminalPty(int master, FILE *term_out)
+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)


@@ -391,14 +403,14 @@ 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]));

-   char *pkg = list[1];
-   char *action = _strstrip(list[2]);
-   if( pkg == NULL || action == NULL) 
+   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;
    }
    {
       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]);

 
    if(strncmp(action,"error",strlen("error")) == 0)
    {
 
    if(strncmp(action,"error",strlen("error")) == 0)
    {


@@ -494,6 +506,67 @@ 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, 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, 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                                       /*{{{*/
 // ---------------------------------------------------------------------


@@ -517,7 +590,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    
    // map the dpkg states to the operations that are performed
    // (this is sorted in the same way as Item::Ops)
    
    // 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[][5] = {
+   static const struct DpkgState DpkgStatesOpMap[][7] = {

       // Install operation
       { 
         {"half-installed", N_("Preparing %s")}, 
       // Install operation
       { 
         {"half-installed", N_("Preparing %s")}, 


@@ -528,12 +601,20 @@ 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}


@@ -561,26 +642,10 @@ 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"));
-   FILE *term_out = NULL;
-   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();)
 
    // this loop is runs once per operation
    for (vector<Item>::iterator I = List.begin(); I != List.end();)


@@ -762,7 +827,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
         /* 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);


@@ -778,9 +843,6 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       int _dpkgin = fd[0];
       close(fd[1]);                        // close the write end of the pipe
 
       int _dpkgin = fd[0];
       close(fd[1]);                        // close the write end of the pipe
 

-      // the read buffers for the communication with dpkg
-      char buf[2] = {0,0};
-      

       // the result of the waitpid call
       int res;
       if(slave > 0)
       // the result of the waitpid call
       int res;
       if(slave > 0)


@@ -788,7 +850,12 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
       // setups fds
       fd_set rfds;
 
       // setups fds
       fd_set rfds;

-      struct timeval tv;
+      struct timespec tv;
+      sigset_t sigmask;
+      sigset_t original_sigmask;
+      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) {


@@ -806,21 +873,30 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
         // wait for input or output here
         FD_ZERO(&rfds);
 
         // 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))
         if(master >= 0 && FD_ISSET(master, &rfds))

-           DoTerminalPty(master, term_out);
+           DoTerminalPty(master);

         if(master >= 0 && FD_ISSET(0, &rfds))
            DoStdin(master);
         if(FD_ISSET(_dpkgin, &rfds))
         if(master >= 0 && FD_ISSET(0, &rfds))
            DoStdin(master);
         if(FD_ISSET(_dpkgin, &rfds))


@@ -832,8 +908,11 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);
 
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);
 

-      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)


@@ -855,14 +934,12 @@ 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;