--- bcrypt-ORIG/rwfile.c	2002-09-12 17:03:01.000000000 -0700
+++ bcrypt-ORIG/rwfile.c	2016-06-30 12:53:08.568733251 -0700
@@ -32,7 +32,7 @@ 
     r = j - sz;
 
   if ( r < j) {
-    if ((*input = realloc(*input, sz + r + 1)) == NULL)
+    if ((*input = realloc(*input, sz + r + 2)) == NULL)
       memerror();
 
     memset(*input+sz, 0, r + 1);