--- libaitcli/src/aitcli.c	2025/12/17 23:30:11	1.20
+++ libaitcli/src/aitcli.c	2025/12/21 22:36:19	1.21.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitcli.c,v 1.20 2025/12/17 23:30:11 misho Exp $
+* $Id: aitcli.c,v 1.21.2.1 2025/12/21 22:36:19 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -558,7 +558,7 @@ cli_Printf(linebuffer_t * __restrict cli_buffer, char 
 	FILE *f;
 
 	if (fmt) {
-		f = fdopen(cli_buffer->line_out, "a");
+		f = fdopen(dup(cli_buffer->line_out), "a");
 		if (!f) {
 			LOGERR;
 			return;
@@ -1300,6 +1300,31 @@ int
 cliResetLine(linebuffer_t * __restrict cli_buffer, struct termios * __restrict orig)
 {
 	return tcsetattr(cli_buffer->line_in, TCSANOW, orig);
+}
+
+/*
+ * cliEcho() - Switch echo on or off
+ *
+ * @cli_buffer = CLI buffer
+ * @on = On or off for echo on input handler
+ * return: -1 error or 0 ok
+*/
+int
+cliEcho(linebuffer_t * __restrict cli_buffer, int on)
+{
+	struct termios t;
+
+	if (tcgetattr(cli_buffer->line_in, &t) == -1) {
+		cli_SetErr(errno, "tcgetattr(%d) - %s", cli_buffer->line_in, strerror(errno));
+		return -1;
+	}
+
+	if (on)
+		t.c_lflag |= (ECHO);
+	else
+		t.c_lflag &= ~(ECHO);
+
+	return tcsetattr(cli_buffer->line_in, TCSANOW, &t);
 }
 
 /*