Fix #1581 - Really fix #986 - rc : do not read stdin when we can't

modules/control/rc.c

@@ -140,10 +140,13 @@ void __msg_rc( intf_thread_t *p_intf, const char *psz_fmt, ... )
     va_start( args, psz_fmt );
 
     if( p_intf->p_sys->i_socket == -1 )
+    {
+        if( !p_intf->p_sys->pi_socket_listen )
         {
             utf8_vfprintf( stdout, psz_fmt, args );
             printf( "\r\n" );
         }
+    }
     else
     {
         net_vaPrintf( p_intf, p_intf->p_sys->i_socket, NULL, psz_fmt, args );
@@ -2297,6 +2300,13 @@ vlc_bool_t ReadCommand( intf_thread_t *p_intf, char *p_buffer, int *pi_size )
     }
 #endif
 
+    if( p_intf->p_sys->i_socket == -1 && p_intf->p_sys->pi_socket_listen )
+    {
+        /* Do not try to read stdin if we are listening on a socket */
+        msleep( INTF_IDLE_SLEEP );
+        return VLC_FALSE;
+    }
+
     while( !p_intf->b_die && *pi_size < MAX_LINE_LENGTH &&
            (i_read = net_ReadNonBlock( p_intf, p_intf->p_sys->i_socket == -1 ?
                        0 /*STDIN_FILENO*/ : p_intf->p_sys->i_socket, NULL,