/* This function behaves exactly like read(). The only difference is
* that it accepts the gnutls_session_t and the content_type_t of data to
* receive (if called by the user the Content is Userdata only)
* It is intended to receive data, under the current session.
*
* The gnutls_handshake_description_t was introduced to support SSL V2.0 client hellos.
*/
ssize_t
_gnutls_recv_int (gnutls_session_t session, content_type_t type,
gnutls_handshake_description_t htype,
uint8_t * data, size_t data_size, void* seq,
unsigned int ms)
{
int ret;
if ((type != GNUTLS_ALERT && type != GNUTLS_HEARTBEAT) && (data_size == 0 || data == NULL))
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
if (session->internals.read_eof != 0)
{
/* if we have already read an EOF
*/
return 0;
}
else if (session_is_valid (session) != 0
|| session->internals.may_not_read != 0)
{
gnutls_assert ();
return GNUTLS_E_INVALID_SESSION;
}
switch(session->internals.recv_state)
{
case RECV_STATE_DTLS_RETRANSMIT:
ret = _dtls_retransmit(session);
if (ret < 0)
return gnutls_assert_val(ret);
session->internals.recv_state = RECV_STATE_0;
case RECV_STATE_0:
_dtls_async_timer_check(session);
/* If we have enough data in the cache do not bother receiving
* a new packet. (in order to flush the cache)
*/
ret = check_buffers (session, type, data, data_size, seq);
if (ret != 0)
return ret;
ret = _gnutls_recv_in_buffers(session, type, htype, ms);
if (ret < 0 && ret != GNUTLS_E_SESSION_EOF)
return gnutls_assert_val(ret);
return check_buffers (session, type, data, data_size, seq);
default:
return gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);
}
}
/* This function behaves exactly like read(). The only difference is
* that it accepts the gnutls_session_t and the content_type_t of data to
* receive (if called by the user the Content is Userdata only)
* It is intended to receive data, under the current session.
*
* The gnutls_handshake_description_t was introduced to support SSL V2.0 client hellos.
*/
ssize_t
_gnutls_recv_int (gnutls_session_t session, content_type_t type,
gnutls_handshake_description_t htype,
uint8_t * data, size_t data_size, void* seq)
{
int ret;
if (type != GNUTLS_ALERT && (data_size == 0 || data == NULL))
{
return GNUTLS_E_INVALID_REQUEST;
}
if (session->internals.read_eof != 0)
{
/* if we have already read an EOF
*/
return 0;
}
else if (session_is_valid (session) != 0
|| session->internals.may_not_read != 0)
{
gnutls_assert ();
return GNUTLS_E_INVALID_SESSION;
}
_dtls_async_timer_check(session);
/* If we have enough data in the cache do not bother receiving
* a new packet. (in order to flush the cache)
*/
ret = check_buffers (session, type, data, data_size, seq);
if (ret != 0)
return ret;
ret = _gnutls_recv_in_buffers(session, type, htype);
if (ret < 0 && ret != GNUTLS_E_SESSION_EOF)
return gnutls_assert_val(ret);
return check_buffers (session, type, data, data_size, seq);
}
