[san] Use generic option-parsing library
Total saving: 73 bytes. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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/*
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* Copyright (C) 2010 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 <string.h>
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#include <getopt.h>
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#include <ipxe/command.h>
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#include <ipxe/parseopt.h>
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#include <usr/autoboot.h>
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FILE_LICENCE ( GPL2_OR_LATER );
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/**
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* "sanboot" command syntax message
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/** @file
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*
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* SAN commands
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*
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* @v argv Argument list
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*/
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static void sanboot_syntax ( char **argv ) {
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printf ( "Usage:\n"
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" %s <root-path>\n"
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"\n"
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"Boot from SAN target\n",
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argv[0] );
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}
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/** "sanboot" options */
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struct sanboot_options {};
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/** "sanboot" option list */
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static struct option_descriptor sanboot_opts[] = {};
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/** "sanboot" command descriptor */
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static struct command_descriptor sanboot_cmd =
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COMMAND_DESC ( struct sanboot_options, sanboot_opts, 1, 1,
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"<root-path>", "Boot from SAN target" );
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/**
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* The "sanboot" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @ret rc Exit code
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* @ret rc Return status code
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*/
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static int sanboot_exec ( int argc, char **argv ) {
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static struct option longopts[] = {
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{ "help", 0, NULL, 'h' },
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{ NULL, 0, NULL, 0 },
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};
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const char *root_path = NULL;
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int c;
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struct sanboot_options opts;
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const char *root_path;
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int rc;
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/* Parse options */
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while ( ( c = getopt_long ( argc, argv, "h", longopts, NULL ) ) >= 0 ){
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switch ( c ) {
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case 'h':
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/* Display help text */
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default:
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/* Unrecognised/invalid option */
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sanboot_syntax ( argv );
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return 1;
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}
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}
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if ( ( rc = parse_options ( argc, argv, &sanboot_cmd, &opts ) ) != 0 )
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return rc;
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/* Need exactly one image name remaining after the options */
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if ( optind != ( argc - 1 ) ) {
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sanboot_syntax ( argv );
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return 1;
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}
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/* Parse root path */
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root_path = argv[optind];
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/* Boot from root path */
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if ( ( rc = boot_root_path ( root_path ) ) != 0 ) {
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printf ( "Could not boot from %s: %s\n",
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root_path, strerror ( rc ) );
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return 1;
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return rc;
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}
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return 0;
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}
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/** SAN commands */
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struct command sanboot_command __command = {
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.name = "sanboot",
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.exec = sanboot_exec,
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