static int gen_supplemental(gnutls_session_t session, const gnutls_supplemental_entry_st *supp,
gnutls_buffer_st * buf)
{
int ret;
gnutls_supp_send_func supp_send = supp->supp_send_func;
size_t sizepos = buf->length;
/* Make room for supplement type and length byte length field. */
ret = _gnutls_buffer_append_data(buf, "\0\0\0\0", 4);
if (ret < 0) {
gnutls_assert();
return ret;
}
ret = supp_send(session, buf);
if (ret < 0) {
gnutls_assert();
return ret;
}
/* If data were added, store type+length, otherwise reset. */
if (buf->length > sizepos + 4) {
buf->data[sizepos] = (supp->type >> 8) & 0xFF;
buf->data[sizepos + 1] = supp->type & 0xFF;
buf->data[sizepos + 2] =
((buf->length - sizepos - 4) >> 8) & 0xFF;
buf->data[sizepos + 3] =
(buf->length - sizepos - 4) & 0xFF;
} else
int
_gnutls_gen_supplemental (gnutls_session_t session, gnutls_buffer * buf)
{
gnutls_supplemental_entry *p;
int ret;
/* Make room for 3 byte length field. */
ret = _gnutls_buffer_append (buf, "\0\0\0", 3);
if (ret < 0)
{
gnutls_assert ();
return ret;
}
for (p = _gnutls_supplemental; p->name; p++)
{
supp_send_func supp_send = p->supp_send_func;
size_t sizepos = buf->length;
/* Make room for supplement type and length byte length field. */
ret = _gnutls_buffer_append (buf, "\0\0\0\0", 4);
if (ret < 0)
{
gnutls_assert ();
return ret;
}
ret = supp_send (session, buf);
if (ret < 0)
{
gnutls_assert ();
return ret;
}
/* If data were added, store type+length, otherwise reset. */
if (buf->length > sizepos + 4)
{
buf->data[sizepos] = 0;
buf->data[sizepos + 1] = p->type;
buf->data[sizepos + 2] = ((buf->length - sizepos - 4) >> 8) & 0xFF;
buf->data[sizepos + 3] = (buf->length - sizepos - 4) & 0xFF;
}
else
