a67aab7083
To add a string to your cmos.layout, you need to specify type 's': #start len type unused name 416 512 s 0 boot_devices With this patch you can do $ nvramtool -w boot_devices="(hd0,0);(hd2,1);(hd3)" And FILO will attempt to load a menu.lst from any of these devices in that order. The patch is not exactly pretty, but a cleaner solution might have resulted in a complete rewrite of the tool, which I did not want. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Joseph Smith <joe@settoplinux.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3613 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
106 lines
4.7 KiB
C
106 lines
4.7 KiB
C
/*****************************************************************************\
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* common.c
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*****************************************************************************
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* Copyright (C) 2002-2005 The Regents of the University of California.
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* Produced at the Lawrence Livermore National Laboratory.
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* Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
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* UCRL-CODE-2003-012
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* All rights reserved.
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*
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* This file is part of nvramtool, a utility for reading/writing coreboot
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* parameters and displaying information from the coreboot table.
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* For details, see http://coreboot.org/nvramtool.
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*
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* Please also read the file DISCLAIMER which is included in this software
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* distribution.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (as published by the
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* Free Software Foundation) version 2, dated June 1991.
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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 terms and
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* conditions of the GNU 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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\*****************************************************************************/
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#include "common.h"
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/* basename of this program, as reported by argv[0] */
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const char prog_name[] = "nvramtool";
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/* version of this program */
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const char prog_version[] = "2.1";
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/****************************************************************************
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* get_line_from_file
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*
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* Get a line of input from file 'f'. Store result in 'line' which is an
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* array of 'line_buf_size' bytes.
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****************************************************************************/
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int get_line_from_file (FILE *f, char line[], int line_buf_size)
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{ if (fgets(line, line_buf_size, f) == NULL)
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return LINE_EOF;
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/* If the file contains a line that is too long, then it's best to let the
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* user know right away rather than passing back a truncated result that
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* will lead to problems later on.
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*/
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return (strlen(line) == ((size_t) (line_buf_size - 1))) ?
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LINE_TOO_LONG : OK;
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}
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/****************************************************************************
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* out_of_memory
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*
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* We ran out of memory. Print an error message and die.
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****************************************************************************/
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void out_of_memory (void)
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{ fprintf(stderr, "%s: Out of memory.\n", prog_name);
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exit(1);
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}
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/****************************************************************************
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* usage
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*
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* Write a usage message to 'outfile'. If 'outfile' is 'stderr' then exit
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* with a value of 1. Otherwise exit with a value of 0.
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****************************************************************************/
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void usage (FILE *outfile)
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{ fprintf(outfile,
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"Usage: %s [-y LAYOUT_FILE | -t] PARAMETER ...\n\n"
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" Read/write coreboot parameters or show info from "
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"coreboot table.\n\n"
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" -y LAYOUT_FILE: Use CMOS layout specified by "
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"LAYOUT_FILE.\n"
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" -t: Use CMOS layout specified by CMOS option "
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"table.\n"
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" [-n] -r NAME: Show parameter NAME. If -n is given, "
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"show value only.\n"
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" -e NAME: Show all possible values for parameter "
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"NAME.\n"
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" -a: Show names and values for all "
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"parameters.\n"
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" -w NAME=VALUE: Set parameter NAME to VALUE.\n"
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" -p INPUT_FILE: Set parameters according to INPUT_FILE.\n"
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" -i: Same as -p but file contents taken from "
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"standard input.\n"
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" -c [VALUE]: Show CMOS checksum or set checksum to "
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"VALUE.\n"
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" -l [ARG]: Show coreboot table info for ARG, or "
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"all ARG choices.\n"
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" -d: Show low-level dump of coreboot table.\n"
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" -Y: Show CMOS layout info.\n"
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" -b OUTPUT_FILE: Dump CMOS memory contents to file.\n"
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" -B INPUT_FILE: Write file contents to CMOS memory.\n"
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" -x: Show hex dump of CMOS memory.\n"
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" -X DUMPFILE: Show hex dump of CMOS dumpfile.\n"
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" -v: Show version info for this program.\n"
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" -h: Show this message.\n", prog_name);
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exit(outfile == stderr);
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}
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