Пример #1
0
        // http://www.dotnet247.com/247reference/msgs/21/108780.aspx
        public static string GetFileOwner(
            string filePath)
        {
            filePath = CheckAddLongPathPrefix(filePath);

            IntPtr pZero;
            IntPtr pSid;
            IntPtr psd; // Not used here

            var errorReturn =
                PInvokeHelper.GetNamedSecurityInfo(
                    filePath,
                    PInvokeHelper.SeFileObject,
                    PInvokeHelper.OwnerSecurityInformation,
                    out pSid,
                    out pZero,
                    out pZero,
                    out pZero,
                    out psd);

            if (errorReturn == 0)
            {
                const int bufferSize   = 64;
                var       buffer       = new StringBuilder();
                var       accounLength = bufferSize;
                var       domainLength = bufferSize;
                int       sidNameUse;
                var       account = new StringBuilder(bufferSize);
                var       domain  = new StringBuilder(bufferSize);

                errorReturn =
                    PInvokeHelper.LookupAccountSid(
                        null,
                        pSid,
                        account,
                        ref accounLength,
                        domain,
                        ref domainLength,
                        out sidNameUse);

                if (errorReturn == 0)
                {
                    // http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx.

                    var lastWin32Error = Marshal.GetLastWin32Error();
                    throw new Win32Exception(
                              lastWin32Error,
                              string.Format(
                                  Resources.ErrorLookingUpSid,
                                  lastWin32Error,
                                  filePath,
                                  CheckAddDotEnd(new Win32Exception(lastWin32Error).Message)));
                }
                else
                {
                    buffer.Append(domain);
                    buffer.Append(@"\");
                    buffer.Append(account);
                    return(buffer.ToString());
                }
            }
            else
            {
                // http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx.

                var lastWin32Error = Marshal.GetLastWin32Error();
                throw new Win32Exception(
                          lastWin32Error,
                          string.Format(
                              Resources.ErrorGettingSecurityInfo,
                              lastWin32Error,
                              filePath,
                              CheckAddDotEnd(new Win32Exception(lastWin32Error).Message)));
            }
        }