X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_echo.c;h=d8f57f292d60067eb31e35d4b7fd6db91bb33544;hp=4f10f482ec8c6b62de5a42e96ec172a6e6fb19b6;hb=d6c65d287166c3105ece4a5e3f3ec7af5a5f26a3;hpb=78e49873c69dc0494bb34c62f897f8b446584a33

diff --git a/ncurses/base/lib_echo.c b/ncurses/base/lib_echo.c
index 4f10f482..d8f57f29 100644
--- a/ncurses/base/lib_echo.c
+++ b/ncurses/base/lib_echo.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2000,2009 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1998-2000,2009 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -44,12 +45,14 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_echo.c,v 1.6 2009/02/15 00:34:19 tom Exp $")
+MODULE_ID("$Id: lib_echo.c,v 1.9 2020/02/02 23:34:34 tom Exp $")
 
 NCURSES_EXPORT(int)
 NCURSES_SP_NAME(echo) (NCURSES_SP_DCL0)
 {
-    T((T_CALLED("echo()")));
+    T((T_CALLED("echo(%p)"), (void *) SP_PARM));
+    if (0 == SP_PARM)
+	returnCode(ERR);
     SP_PARM->_echo = TRUE;
     returnCode(OK);
 }
@@ -65,7 +68,9 @@ echo(void)
 NCURSES_EXPORT(int)
 NCURSES_SP_NAME(noecho) (NCURSES_SP_DCL0)
 {
-    T((T_CALLED("noecho()")));
+    T((T_CALLED("noecho(%p)"), (void *) SP_PARM));
+    if (0 == SP_PARM)
+	returnCode(ERR);
     SP_PARM->_echo = FALSE;
     returnCode(OK);
 }