Join with aliencode

Author: jgg
Date: 2001-02-20 07:03:16 GMT
Join with aliencode

1 files changed, 103 insertions, 0 deletions

diff --git a/apt-inst/dirstream.cc b/apt-inst/dirstream.cc
new file mode 100644
index 000000000..41dbf4403
--- /dev/null
+++ b/apt-inst/dirstream.cc
@@ -0,0 +1,103 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: dirstream.cc,v 1.2 2001/02/20 07:03:16 jgg Exp $
+/* ######################################################################
+
+   Directory Stream 
+   
+   This class provides a simple basic extractor that can be used for
+   a number of purposes.
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#ifdef __GNUG__
+#pragma implementation "apt-pkg/dirstream.h"
+#endif
+
+#include <apt-pkg/dirstream.h>
+#include <apt-pkg/error.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <utime.h>
+#include <unistd.h>
+									/*}}}*/
+
+// DirStream::DoItem - Process an item					/*{{{*/
+// ---------------------------------------------------------------------
+/* This is a very simple extractor, it does not deal with things like
+   overwriting directories with files and so on. */
+bool pkgDirStream::DoItem(Item &Itm,int &Fd)
+{
+   switch (Itm.Type)
+   {
+      case Item::File:
+      {
+	 /* Open the output file, NDELAY is used to prevent this from 
+	    blowing up on device special files.. */
+	 int iFd = open(Itm.Name,O_NDELAY|O_WRONLY|O_CREAT|O_TRUNC|O_APPEND,
+		       Itm.Mode);
+	 if (iFd < 0)
+	    return _error->Errno("open","Failed write file %s",
+				 Itm.Name);
+	 
+	 // fchmod deals with umask and fchown sets the ownership
+	 if (fchmod(iFd,Itm.Mode) != 0)
+	    return _error->Errno("fchmod","Failed write file %s",
+				 Itm.Name);
+	 if (fchown(iFd,Itm.UID,Itm.GID) != 0 && errno != EPERM)
+	    return _error->Errno("fchown","Failed write file %s",
+				 Itm.Name);
+	 Fd = iFd;
+	 return true;
+      }
+      
+      case Item::HardLink:
+      case Item::SymbolicLink:
+      case Item::CharDevice:
+      case Item::BlockDevice:
+      case Item::Directory:
+      case Item::FIFO:
+      break;
+   }
+   
+   return true;
+}
+									/*}}}*/
+// DirStream::FinishedFile - Finished processing a file			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDirStream::FinishedFile(Item &Itm,int Fd)
+{
+   if (Fd < 0)
+      return true;
+   
+   if (close(Fd) != 0)
+      return _error->Errno("close","Failed to close file %s",Itm.Name);
+
+   /* Set the modification times. The only way it can fail is if someone
+      has futzed with our file, which is intolerable :> */
+   struct utimbuf Time;
+   Time.actime = Itm.MTime;
+   Time.modtime = Itm.MTime;
+   if (utime(Itm.Name,&Time) != 0)
+      _error->Errno("utime","Failed to close file %s",Itm.Name);
+   
+   return true;   
+}
+									/*}}}*/
+// DirStream::Fail - Failed processing a file				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDirStream::Fail(Item &Itm,int Fd)
+{
+   if (Fd < 0)
+      return true;
+   
+   close(Fd);
+   return false;
+}
+									/*}}}*/