--- src/cmd/ksh93/sh/init.c
+++ src/cmd/ksh93/sh/init.c	2013-02-15 13:29:57.129444048 +0000
@@ -336,6 +336,8 @@ static void put_restricted(register Namv
 	int	path_scoped = 0, fpath_scoped=0;
 	Pathcomp_t *pp;
 	char *name = nv_name(np);
+	if (!shp)
+		shp = sh_getinterp();
 	if(!(flags&NV_RDONLY) && sh_isoption(SH_RESTRICTED))
 		errormsg(SH_DICT,ERROR_exit(1),e_restricted,nv_name(np));
 	if(np==PATHNOD	|| (path_scoped=(strcmp(name,PATHNOD->nvname)==0)))		
--- src/cmd/ksh93/sh/name.c
+++ src/cmd/ksh93/sh/name.c	2012-10-16 12:12:43.000000000 +0000
@@ -2162,7 +2162,7 @@ static void attstore(register Namval_t *
 	if((flag&(NV_UTOL|NV_LTOU|NV_INTEGER)) == (NV_UTOL|NV_LTOU))
 	{
 		data = (void*)nv_mapchar(np,0);
-		if(strcmp(data,e_tolower) && strcmp(data,e_toupper))
+		if(data && strcmp(data,e_tolower) && strcmp(data,e_toupper))
 			return;
 	}
 	flag &= (NV_RDONLY|NV_UTOL|NV_LTOU|NV_RJUST|NV_LJUST|NV_ZFILL|NV_INTEGER);