diff options
Diffstat (limited to 'sys/stand/boot/bootarg.c')
| -rw-r--r-- | sys/stand/boot/bootarg.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sys/stand/boot/bootarg.c b/sys/stand/boot/bootarg.c new file mode 100644 index 00000000000..1012d458d6f --- /dev/null +++ b/sys/stand/boot/bootarg.c @@ -0,0 +1,73 @@ +/* $OpenBSD: bootarg.c,v 1.1 1997/10/21 04:05:53 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); + memcpy(q->ba_arg, p, l); + q->ba_next = list; + list = q; +} + +void * +makebootargs(lenp) + size_t *lenp; +{ + bootarg_t *p; + u_char *r, *q; + + /* get total size */ + *lenp = 0; + for (p = list; p != NULL; p = p->ba_next) + *lenp += p->ba_size; + r = alloc(*lenp + sizeof(p->ba_type)); + /* copy them out */ + for (p = list, q = r; p != NULL; p = p->ba_next, q += p->ba_size) + memcpy(q, p, p->ba_size); + *(int *)q = BOOTARG_END; + return r; +} + |