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- #include <lib/libsa/stand.h>
- #include <stand/boot/bootarg.h>
- static bootarg_t *bootarg_list;
- void
- addbootarg(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 = bootarg_list;
- bootarg_list = q;
- }
- void
- makebootargs(caddr_t v, size_t *lenp)
- {
- bootarg_t *p;
- u_char *q;
- size_t l;
-
- l = sizeof(*p);
- for (p = bootarg_list; p != NULL; p = p->ba_next) {
- l += p->ba_size;
- if (*lenp < l) {
- #ifdef DEBUG
- printf("makebootargs: too many args\n");
- #endif
- l -= p->ba_size;
- break;
- }
- }
- *lenp = l;
-
- for (p = bootarg_list, q = v;
- p != NULL && ((q + p->ba_size) - (u_char *)v) <= l - sizeof(*p);
- 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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