static void
free_res(
restrict_u * res,
int v6
)
{
restrict_u ** plisthead;
restrict_u * unlinked;
restrictcount--;
if (RES_LIMITED & res->flags)
dec_res_limited();
if (v6)
plisthead = &restrictlist6;
else
plisthead = &restrictlist4;
UNLINK_SLIST(unlinked, *plisthead, res, link, restrict_u);
INSIST(unlinked == res);
if (v6) {
zero_mem(res, V6_SIZEOF_RESTRICT_U);
plisthead = &resfree6;
} else {
zero_mem(res, V4_SIZEOF_RESTRICT_U);
plisthead = &resfree4;
}
LINK_SLIST(*plisthead, res, link);
}
/*
* remove_from_hash - removes an entry from the address hash table and
* decrements mru_entries.
*/
static void
remove_from_hash(
mon_entry *mon
)
{
u_int hash;
mon_entry *punlinked;
mru_entries--;
hash = MON_HASH(&mon->rmtadr);
UNLINK_SLIST(punlinked, mon_hash[hash], mon, hash_next,
mon_entry);
ENSURE(punlinked == mon);
}
/*
* freesymkey - common code to remove a symkey and recycle its entry.
*/
static void
freesymkey(
symkey * sk,
symkey ** bucket
)
{
symkey * unlinked;
if (sk->secret != NULL) {
memset(sk->secret, '\0', sk->secretsize);
free(sk->secret);
}
UNLINK_SLIST(unlinked, *bucket, sk, hlink, symkey);
DEBUG_ENSURE(sk == unlinked);
UNLINK_DLIST(sk, llink);
memset((char *)sk + offsetof(symkey, symkey_payload), '\0',
sizeof(*sk) - offsetof(symkey, symkey_payload));
LINK_SLIST(authfreekeys, sk, llink.f);
authnumkeys--;
authnumfreekeys++;
}