--- heimdal-1.2.dfsg.1/appl/rsh/rsh_locl.h
+++ heimdal-1.2.dfsg.1/appl/rsh/rsh_locl.h
@@ -151,7 +151,7 @@ extern des_cblock iv;
 #define KCMD_OLD_VERSION "KCMDV0.1"
 #define KCMD_NEW_VERSION "KCMDV0.2"
 
-#define USERNAME_SZ 16
+#define USERNAME_SZ 256
 #ifndef ARG_MAX
 #define ARG_MAX 8192
 #endif
