833447392d
This change allows the time for which shell banners are displayed to be configured in the config.h file. The ability to access the shell can also be effectively disabled by setting this timeout to zero.
60 lines
1.5 KiB
C
60 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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#include <stdio.h>
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#include <console.h>
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#include <unistd.h>
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#include <config/general.h>
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#include <gpxe/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 wait_count = 0;
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int enter_shell = 0;
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int key;
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printf ( "\nPress Ctrl-B for the gPXE command line..." );
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/* Wait for key */
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while ( wait_count < BANNER_TIMEOUT ) {
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if ( iskey() ) {
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key = getchar();
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if ( key == 0x02 /* Ctrl-B */ )
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enter_shell = 1;
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break;
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}
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mdelay(100);
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wait_count++;
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}
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/* Clear the "Press Ctrl-B" line */
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printf ( "\r \r" );
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return enter_shell;
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}
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