2008-06-18 Marcus Brinkmann <marcus@g10code.de>

* sysutils.h (translate_table_init, translate_table_lookup): New
	prototypes.
	* sysutils.c: Include <ctype.h>.
	(FD_TRANSLATE_MAX): New macro.
	(fd_translate, fd_translate_len): New static variables.
	(translate_table_init, translate_table_lookup): New functions.
	(translate_sys2libc_fd_int): Translate file descriptor.
	* iobuf.c (check_special_filename): Translate handle values from
	special filenames.

common/iobuf.c

@@ -1177,7 +1177,7 @@ check_special_filename (const char *fname)
       for (i = 0; digitp (fname+i); i++)
 	;
       if (!fname[i])
-	return atoi (fname);
+	return translate_table_lookup (atoi (fname));
     }
   return -1;
 }