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/* $OpenBSD: bootarg.c,v 1.3 1997/10/25 06:58:48 mickey Exp $ */
/*
* Copyright (c) 1997 Michael Shalayeff
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 REGENTS 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 <lib/libsa/stand.h>
#include <stand/boot/bootarg.h>
static bootarg_t *list = NULL;
void
addbootarg(t, l, p)
int t;
size_t l;
void *p;
{
bootarg_t *q = alloc(sizeof(*q) + l - sizeof(q->ba_arg));
q->ba_type = t;
q->ba_size = sizeof(*q) + l - sizeof(q->ba_arg);
bcopy(p, q->ba_arg, l);
q->ba_next = list;
list = q;
}
void
makebootargs(v, lenp)
caddr_t v;
size_t *lenp;
{
register bootarg_t *p;
register u_char *q;
register size_t l;
/* get total size */
l = sizeof(*p);
for (p = list; p != NULL; p = p->ba_next)
l += p->ba_size;
if (*lenp < l) {
#ifdef DEBUG
printf("makebootargs: too much args\n");
#endif
l = *lenp;
}
*lenp = l;
/* copy them out */
for (p = list, q = v; p != NULL && ((q + p->ba_size) - (u_char*)v) < l;
q += p->ba_size, p = p->ba_next) {
#ifdef DEBUG
printf("%d,%d ", p->ba_type, p->ba_size);
#endif
bcopy(p, q, p->ba_size);
}
p = (bootarg_t *)q;
p->ba_type = BOOTARG_END;
}
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