3338a03982
Continue calling step() while displaying the shell banner. This potentially allows TCP connections to close gracefully after a failed boot attempt. Inspired-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <stdio.h>
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#include <console.h>
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#include <config/general.h>
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#include <ipxe/keys.h>
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#include <ipxe/timer.h>
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#include <ipxe/shell_banner.h>
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/** @file
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*
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* Shell startup banner
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*
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*/
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/**
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* Print shell banner and prompt for shell entry
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*
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* @ret enter_shell User wants to enter shell
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*/
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int shell_banner ( void ) {
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int key;
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/* Skip prompt if timeout is zero */
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if ( BANNER_TIMEOUT <= 0 )
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return 0;
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/* Display prompt */
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printf ( "\nPress Ctrl-B for the iPXE command line..." );
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/* Wait for key */
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key = getchar_timeout ( ( BANNER_TIMEOUT * TICKS_PER_SEC ) / 10 );
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/* Clear the "Press Ctrl-B" line */
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printf ( "\r \r" );
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return ( key == CTRL_B );
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}
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