/*
 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>

#include <stand.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/boot.h>
#include <sys/linker.h>

#include "bootstrap.h"
#include "libuserboot.h"

int
bi_getboothowto(char *kargs)
{
        char    *curpos, *next, *string;
        int     howto = 0;
        int     vidconsole;

        /* howto = boot_parse_cmdline(kargs); */
        /* howto |= boot_env_to_howto(); */
        /* Get the boot options from the environment first. */
        for (int i = 0; howto_names[i].ev != NULL; i++) {
                if (getenv(howto_names[i].ev) != NULL)
                        howto |= howto_names[i].mask;
        }

        /* Enable selected consoles */
        string = next = strdup(getenv("console"));
        vidconsole = 0;
        while (next != NULL) {
                curpos = strsep(&next, " ,");
                if (*curpos == '\0')
                        continue;
                if (strcmp(curpos, "text") == 0)
                        vidconsole = 1;
                else if (strcmp(curpos, "ttya") == 0)
                        howto |= RB_SERIAL;
                else if (strcmp(curpos, "nullconsole") == 0)
                        howto |= RB_MUTE;
        }

        if (vidconsole && (howto & RB_SERIAL))
                howto |= RB_MULTIPLE;

        /*
         * XXX: Note that until the kernel is ready to respect multiple consoles
         * for the messages from /etc/rc, the first named console is the primary
         * console
         */
        if (strcmp(string, "text") == 0)
                howto &= ~RB_SERIAL;

        free(string);

        return (howto);
}

void
bi_setboothowto(int howto)
{

        /* boot_howto_to_env(howto); */
}

/*
 * Copy the environment into the load area starting at (addr).
 * Each variable is formatted as <name>=<value>, with a single nul
 * separating each variable, and a double nul terminating the environment.
 */
vm_offset_t
bi_copyenv(vm_offset_t addr)
{
        struct env_var  *ep;

        /* traverse the environment */
        for (ep = environ; ep != NULL; ep = ep->ev_next) {
                CALLBACK(copyin, ep->ev_name, addr, strlen(ep->ev_name));
                addr += strlen(ep->ev_name);
                CALLBACK(copyin, "=", addr, 1);
                addr++;
                if (ep->ev_value != NULL) {
                        CALLBACK(copyin, ep->ev_value, addr,
                            strlen(ep->ev_value));
                        addr += strlen(ep->ev_value);
                }
                CALLBACK(copyin, "", addr, 1);
                addr++;
        }
        CALLBACK(copyin, "", addr, 1);
        addr++;
        return (addr);
}