/*
 * Copyright 2009, François Revol, revol@free.fr.
 * Distributed under the terms of the MIT License.
 */

#include "multiboot.h"

#include <KernelExport.h>
#include <string.h>
#include <boot/stage2_args.h>

extern struct multiboot_info *gMultiBootInfo;

// load_driver_settings.h
extern status_t add_safe_mode_settings(char *buffer);

void
dump_multiboot_info(void)
{
        if (!gMultiBootInfo)
                return;
        dprintf("Found MultiBoot Info at %p\n", gMultiBootInfo);
        dprintf("       flags: 0x%x\n", gMultiBootInfo->flags);

        if (gMultiBootInfo->flags & MULTIBOOT_INFO_BOOTDEV)
                dprintf("       boot_device: 0x%x\n", gMultiBootInfo->boot_device);

        if (gMultiBootInfo->flags & MULTIBOOT_INFO_CMDLINE
                && gMultiBootInfo->cmdline)
                dprintf("       cmdline: '%s'\n", (char *)gMultiBootInfo->cmdline);

        if (gMultiBootInfo->boot_loader_name)
                dprintf("       boot_loader_name: '%s'\n",
                        (char *)gMultiBootInfo->boot_loader_name);
}


status_t
parse_multiboot_commandline(stage2_args *args)
{
        static const char *sArgs[] = { NULL, NULL };

        if (!gMultiBootInfo || !(gMultiBootInfo->flags & MULTIBOOT_INFO_CMDLINE)
                || !gMultiBootInfo->cmdline)
                return B_ENTRY_NOT_FOUND;

        const char *cmdline = (const char *)gMultiBootInfo->cmdline;

        // skip kernel (bootloader) name
        cmdline = strchr(cmdline, ' ');
        if (!cmdline)
                return B_ENTRY_NOT_FOUND;
        cmdline++;
        if (*cmdline == '\0')
                return B_ENTRY_NOT_FOUND;

        sArgs[0] = cmdline;
        args->arguments = sArgs;
        args->arguments_count = 1;

        return B_OK;
}