int
mdns_recv(const struct mdns_ctx *ctx, struct mdns_hdr *hdr, struct rr_entry **entries)
{
uint8_t buf[MDNS_PKT_MAXSZ];
size_t num_entry, n;
ssize_t length;
struct rr_entry *entry;
*entries = NULL;
if ((length = recv(ctx->sock, (char *) buf, sizeof(buf), 0)) < 0)
return (MDNS_NETERR);
const uint8_t *ptr = mdns_read_header(buf, length, hdr);
num_entry = hdr->num_qn + hdr->num_ans_rr + hdr->num_add_rr;
for (size_t i = 0; i < num_entry; ++i) {
entry = calloc(1, sizeof(struct rr_entry));
if (!entry)
goto err;
ptr = rr_read(ptr, &n, buf, entry, (hdr->flags & FLAG_QR) > 0);
if (!ptr) {
errno = ENOSPC;
goto err;
}
entry->next = *entries;
*entries = entry;
}
if (*entries == NULL) {
return (MDNS_STDERR);
}
return (0);
err:
mdns_free(*entries);
return (MDNS_STDERR);
}
void vhpt_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry)
{
region_register_t rr_save, rr;
size_t vrn;
rid_t rid;
uint64_t tag;
vhpt_entry_t *ventry;
vrn = va >> VRN_SHIFT;
rid = ASID2RID(asid, vrn);
rr_save.word = rr_read(vrn);
rr.word = rr_save.word;
rr.map.rid = rid;
rr_write(vrn, rr.word);
srlz_i();
ventry = (vhpt_entry_t *) thash(va);
tag = ttag(va);
rr_write(vrn, rr_save.word);
srlz_i();
srlz_d();
ventry->word[0] = entry.word[0];
ventry->word[1] = entry.word[1];
ventry->present.tag.tag_word = tag;
}
