--- sf_error.h.orig	2015-09-10 10:12:36.391000000 -0700
+++ sf_error.h	2015-09-10 10:13:16.686000000 -0700
@@ -64,6 +64,7 @@
 #define SF_EUSER_LIMIT_REACHED  56  /* Couldn't create user - license limit reached*/
 #define SF_EDELETE          57  /* Error in deleting file or entry in memory */
 #define SF_EMEM             58  /* Error in manipulating memory */
+#define SF_ESEEK	    70	/* Seek error (file i/o) */
 #define SF_NITRO_DUPLICATE  114 /* duplicate key */
 
 /**