* Updated cron script to support backups by hardlinks and

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

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 5a7711a90e88b9f9c74f92815b3ff23c863d22e7..bc15b88195cc163ad7dd79dedaa5972174db1a1f 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/fileutl.h>
 
 #include <unistd.h>
 #include <stdlib.h>
@@ -95,68 +96,6 @@ bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
    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
@@ -342,9 +281,12 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 */
 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         /*{{{*/
@@ -354,9 +296,9 @@ void pkgDPkgPM::DoStdin(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));
+   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
@@ -639,6 +581,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       }
    }   
 
+   stdin_is_dev_null = false;
+
    // create log
    OpenLog();
 
@@ -758,14 +702,16 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN);
 
       struct   termios tt;
+      struct   termios tt_out;
       struct   winsize win;
       int      master;
       int      slave;
 
       // FIXME: setup sensible signal handling (*ick*)
       tcgetattr(0, &tt);
+      tcgetattr(1, &tt_out);
       ioctl(0, TIOCGWINSZ, (char *)&win);
-      if (openpty(&master, &slave, NULL, &tt, &win) < 0) 
+      if (openpty(&master, &slave, NULL, &tt_out, &win) < 0) 
       {
         const char *s = _("Can not write log, openpty() "
                           "failed (/dev/pts not mounted?)\n");
@@ -868,7 +814,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
         // 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);