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+/*****************************************************************************\
+ * common.c
+ * $Id: common.c,v 1.3 2006/01/24 00:25:40 dsp_llnl Exp $
+ *****************************************************************************
+ * Copyright (C) 2002-2005 The Regents of the University of California.
+ * Produced at the Lawrence Livermore National Laboratory.
+ * Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
+ * UCRL-CODE-2003-012
+ * All rights reserved.
+ *
+ * This file is part of lxbios, a utility for reading/writing LinuxBIOS
+ * parameters and displaying information from the LinuxBIOS table.
+ * For details, see <http://www.llnl.gov/linux/lxbios/>.
+ *
+ * Please also read the file DISCLAIMER which is included in this software
+ * distribution.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (as published by the
+ * Free Software Foundation) version 2, dated June 1991.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+ * conditions of the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+\*****************************************************************************/
+
+#include "common.h"
+
+/* basename of this program, as reported by argv[0] */
+const char prog_name[] = "lxbios";
+
+/* version of this program */
+const char prog_version[] = "2.0.1";
+
+/****************************************************************************
+ * get_line_from_file
+ *
+ * Get a line of input from file 'f'. Store result in 'line' which is an
+ * array of 'line_buf_size' bytes.
+ ****************************************************************************/
+int get_line_from_file (FILE *f, char line[], int line_buf_size)
+ { if (fgets(line, line_buf_size, f) == NULL)
+ return LINE_EOF;
+
+ /* If the file contains a line that is too long, then it's best to let the
+ * user know right away rather than passing back a truncated result that
+ * will lead to problems later on.
+ */
+ return (strlen(line) == ((size_t) (line_buf_size - 1))) ?
+ LINE_TOO_LONG : OK;
+ }
+
+/****************************************************************************
+ * out_of_memory
+ *
+ * We ran out of memory. Print an error message and die.
+ ****************************************************************************/
+void out_of_memory (void)
+ { fprintf(stderr, "%s: Out of memory.\n", prog_name);
+ exit(1);
+ }
+
+/****************************************************************************
+ * usage
+ *
+ * Write a usage message to 'outfile'. If 'outfile' is 'stderr' then exit
+ * with a value of 1. Otherwise exit with a value of 0.
+ ****************************************************************************/
+void usage (FILE *outfile)
+ { fprintf(outfile,
+ "Usage: %s [-y LAYOUT_FILE | -t] PARAMETER ...\n\n"
+ " Read/write LinuxBIOS parameters or show info from "
+ "LinuxBIOS table.\n\n"
+ " -y LAYOUT_FILE: Use CMOS layout specified by "
+ "LAYOUT_FILE.\n"
+ " -t: Use CMOS layout specified by CMOS option "
+ "table.\n"
+ " [-n] -r NAME: Show parameter NAME. If -n is given, "
+ "show value only.\n"
+ " -e NAME: Show all possible values for parameter "
+ "NAME.\n"
+ " -a: Show names and values for all "
+ "parameters.\n"
+ " -w NAME=VALUE: Set parameter NAME to VALUE.\n"
+ " -p INPUT_FILE: Set parameters according to INPUT_FILE.\n"
+ " -i: Same as -p but file contents taken from "
+ "standard input.\n"
+ " -c [VALUE]: Show CMOS checksum or set checksum to "
+ "VALUE.\n"
+ " -l [ARG]: Show LinuxBIOS table info for ARG, or "
+ "all ARG choices.\n"
+ " -d: Show low-level dump of LinuxBIOS table.\n"
+ " -Y: Show CMOS layout info.\n"
+ " -b OUTPUT_FILE: Dump CMOS memory contents to file.\n"
+ " -B INPUT_FILE: Write file contents to CMOS memory.\n"
+ " -x: Show hex dump of CMOS memory.\n"
+ " -X DUMPFILE: Show hex dump of CMOS dumpfile.\n"
+ " -v: Show version info for this program.\n"
+ " -h: Show this message.\n", prog_name);
+ exit(outfile == stderr);
+ }