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Unix.cs

using System.Runtime.InteropServices;

namespace FSpot.Utils {
      public static class Unix {
            internal static class NativeMethods
            {
                  [DllImport ("libc", EntryPoint="rename", CharSet = CharSet.Auto)]
                  public static extern int Rename (string oldpath, string newpath);

                  [DllImport ("libc", EntryPoint="mkstemp")]
                  public static extern int MkSTemp (byte []template);
            }

            public static int Rename (string oldpath, string newpath)
            {
                  return NativeMethods.Rename (oldpath, newpath);
            }


            public static Mono.Unix.UnixStream MakeSafeTemp (ref string template)
            {
                  byte [] template_bytes = System.Text.Encoding.UTF8.GetBytes (template + ".XXXXXX\0");

                  int fd = NativeMethods.MkSTemp (template_bytes);

                  if (fd < 0) {
                        //Mono.Unix.Error error = Mono.Unix.Stdlib.GetLastError ();
                        throw new System.ApplicationException (Mono.Unix.Catalog.GetString ("Unable to create temporary file"));
                  }

                  template = System.Text.Encoding.UTF8.GetString (template_bytes, 0, template_bytes.Length - 1);
                  return new Mono.Unix.UnixStream (fd);
            }
      }
}

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