[autoboot] Use generic option-parsing library

Total saving: 32 bytes.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/hci/commands/autoboot_cmd.c

@@ -1,53 +1,110 @@
+/*
+ * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * 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; either version 2 of the
+ * License, or any later version.
+ *
+ * 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
 #include <stdio.h>
+#include <getopt.h>
 #include <ipxe/command.h>
+#include <ipxe/parseopt.h>
 #include <ipxe/netdevice.h>
 #include <usr/autoboot.h>
 
 FILE_LICENCE ( GPL2_OR_LATER );
 
+/** @file
+ *
+ * Booting commands
+ *
+ */
+
+/** "autoboot" options */
+struct autoboot_options {};
+
+/** "autoboot" option list */
+static struct option_descriptor autoboot_opts[] = {};
+
+/** "autoboot" command descriptor */
+static struct command_descriptor autoboot_cmd =
+	COMMAND_DESC ( struct autoboot_options, autoboot_opts, 0, 0,
+		       "",
+		       "Attempt to boot the system" );
+
+/**
+ * "autoboot" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
 static int autoboot_exec ( int argc, char **argv ) {
+	struct autoboot_options opts;
+	int rc;
 
-	if ( argc != 1 ) {
-		printf ( "Usage:\n"
-			 "  %s\n"
-			 "\n"
-			 "Attempts to boot the system\n",
-			 argv[0] );
-		return 1;
-	}
+	/* Parse options */
+	if ( ( rc = parse_options ( argc, argv, &autoboot_cmd, &opts ) ) != 0 )
+		return rc;
 
-	autoboot();
+	/* Try to boot */
+	if ( ( rc = autoboot() ) != 0 )
+		return rc;
 
-	/* Can never return success by definition */
-	return 1;
+	return 0;
 }
 
+/** "netboot" options */
+struct netboot_options {};
+
+/** "netboot" option list */
+static struct option_descriptor netboot_opts[] = {};
+
+/** "netboot" command descriptor */
+static struct command_descriptor netboot_cmd =
+	COMMAND_DESC ( struct netboot_options, netboot_opts, 1, 1,
+		       "<interface>",
+		       "Attempt to boot the system from <interface>" );
+
+/**
+ * "netboot" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
 static int netboot_exec ( int argc, char **argv ) {
-	const char *netdev_name;
+	struct netboot_options opts;
 	struct net_device *netdev;
+	int rc;
+
+	/* Parse options */
+	if ( ( rc = parse_options ( argc, argv, &netboot_cmd, &opts ) ) != 0 )
+		return rc;
+
+	/* Parse interface */
+	if ( ( rc = parse_netdev ( argv[optind], &netdev ) ) != 0 )
+		return rc;
+
+	/* Try to boot */
+	if ( ( rc = netboot ( netdev ) ) != 0 )
+		return rc;
 
-	if ( argc != 2 ) {
-		printf ( "Usage:\n"
-			 "  %s <interface>\n"
-			 "\n"
-			 "Attempts to boot the system from <interface>\n",
-			 argv[0] );
-		return 1;
-	}
-	netdev_name = argv[1];
-
-	netdev = find_netdev ( netdev_name );
-	if ( ! netdev ) {
-		printf ( "%s: no such interface\n", netdev_name );
-		return 1;
-	}
-
-	netboot ( netdev );
-
-	/* Can never return success by definition */
-	return 1;
+	return 0;
 }
 
+/** Booting commands */
 struct command autoboot_commands[] __command = {
 	{
 		.name = "autoboot",

src/include/usr/autoboot.h

@@ -15,7 +15,7 @@ struct net_device;
 extern int shutdown_exit_flags;
 
 extern int netboot ( struct net_device *netdev );
-extern void autoboot ( void );
+extern int autoboot ( void );
 extern int boot_next_server_and_filename ( struct in_addr next_server,
 					   const char *filename );
 extern int boot_root_path ( const char *root_path );

src/usr/autoboot.c

@@ -293,22 +293,24 @@ static void close_all_netdevs ( void ) {
 /**
  * Boot the system
  */
-void autoboot ( void ) {
+int autoboot ( void ) {
 	struct net_device *boot_netdev;
 	struct net_device *netdev;
+	int rc = -ENODEV;
 
 	/* If we have an identifable boot device, try that first */
 	close_all_netdevs();
 	if ( ( boot_netdev = find_boot_netdev() ) )
-		netboot ( boot_netdev );
+		rc = netboot ( boot_netdev );
 
 	/* If that fails, try booting from any of the other devices */
 	for_each_netdev ( netdev ) {
 		if ( netdev == boot_netdev )
 			continue;
 		close_all_netdevs();
-		netboot ( netdev );
+		rc = netboot ( netdev );
 	}
 
 	printf ( "No more network devices\n" );
+	return rc;
 }