fix return values

src/libecrypt.c

@@ -89,10 +89,10 @@ ecrypt_check(char *firstkey, char *secondkey)
 		}
 		if (flg) {
 			printf("no match\n");
-			return 1;
+			exit(1);
 		} else {
 			printf("match\n");
-			return 0;
+			exit(0);
 		}
 	}