/* schan_push_adapter
* Callback registered with SSLSetIOFuncs as the write function for a
* session. Writes data to the session connection. Conforms to the
* SSLWriteFunc type.
*
* transport - The session connection
* buff - The buffer of data to write. Must be at least *buff_len bytes in length.
* *buff_len - On input, the desired length to write. On successful return,
* the number of bytes actually written.
*
* Returns:
* noErr on complete or partial success; *buff_len indicates how much data
* was actually written, which may be less than requested.
* errSSLWouldBlock when no data could be written without blocking. The
* caller should try again.
* other error code for failure.
*/
static OSStatus schan_push_adapter(SSLConnectionRef transport, const void *buff,
SIZE_T *buff_len)
{
struct mac_session *s = (struct mac_session*)transport;
int status;
OSStatus ret;
TRACE("(%p/%p, %p, %p/%lu)\n", s, s->transport, buff, buff_len, *buff_len);
status = schan_push(s->transport, buff, buff_len);
if (status == 0)
{
TRACE("Pushed %lu bytes\n", *buff_len);
ret = noErr;
}
else if (status == EAGAIN)
{
TRACE("Would block before being able to push anything\n");
ret = errSSLWouldBlock;
}
else
{
FIXME("Unknown status code from schan_push: %d\n", status);
ret = ioErr;
}
return ret;
}
static ssize_t schan_push_adapter(gnutls_transport_ptr_t transport,
const void *buff, size_t buff_len)
{
struct schan_transport *t = (struct schan_transport*)transport;
gnutls_session_t s = (gnutls_session_t)schan_session_for_transport(t);
int ret = schan_push(transport, buff, &buff_len);
if (ret)
{
pgnutls_transport_set_errno(s, ret);
return -1;
}
return buff_len;
}