LWS_VISIBLE int
lws_ssl_pending(struct lws *wsi)
{
if (!wsi->ssl)
return 0;
#if defined(LWS_USE_POLARSSL)
return ssl_get_bytes_avail(wsi->ssl) > 0;
#else
#if defined(LWS_USE_MBEDTLS)
return ssl_get_bytes_avail(wsi->ssl) > 0;;
#else
return SSL_pending(wsi->ssl);
#endif
#endif
}
static bool Curl_polarssl_data_pending(const struct connectdata *conn,
int sockindex)
{
const struct ssl_connect_data *connssl = &conn->ssl[sockindex];
return ssl_get_bytes_avail(&BACKEND->ssl) != 0;
}
/* See if data from SSL connection is read to be read
*/
int ssl_pending(ssl_context *ssl) {
return ssl_get_bytes_avail(ssl);
}
LWS_VISIBLE int
lws_ssl_capable_read(struct lws *wsi, unsigned char *buf, int len)
{
struct lws_context *context = wsi->context;
struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
int n = 0;
if (!wsi->ssl)
return lws_ssl_capable_read_no_ssl(wsi, buf, len);
#if defined(LWS_USE_POLARSSL)
#else
#if defined(LWS_USE_MBEDTLS)
#else
n = SSL_read(wsi->ssl, buf, len);
#endif
#endif
/* manpage: returning 0 means connection shut down */
if (!n)
return LWS_SSL_CAPABLE_ERROR;
if (n < 0) {
n = lws_ssl_get_error(wsi, n);
if (n == SSL_ERROR_WANT_READ || n == SSL_ERROR_WANT_WRITE)
return LWS_SSL_CAPABLE_MORE_SERVICE;
return LWS_SSL_CAPABLE_ERROR;
}
if (wsi->vhost)
wsi->vhost->rx += n;
lws_restart_ws_ping_pong_timer(wsi);
/*
* if it was our buffer that limited what we read,
* check if SSL has additional data pending inside SSL buffers.
*
* Because these won't signal at the network layer with POLLIN
* and if we don't realize, this data will sit there forever
*/
if (n != len)
goto bail;
if (!wsi->ssl)
goto bail;
#if defined(LWS_USE_POLARSSL)
if (ssl_get_bytes_avail(wsi->ssl) <= 0)
goto bail;
#else
#if defined(LWS_USE_MBEDTLS)
#else
if (!SSL_pending(wsi->ssl))
goto bail;
#endif
#endif
if (wsi->pending_read_list_next)
return n;
if (wsi->pending_read_list_prev)
return n;
if (pt->pending_read_list == wsi)
return n;
/* add us to the linked list of guys with pending ssl */
if (pt->pending_read_list)
pt->pending_read_list->pending_read_list_prev = wsi;
wsi->pending_read_list_next = pt->pending_read_list;
wsi->pending_read_list_prev = NULL;
pt->pending_read_list = wsi;
return n;
bail:
lws_ssl_remove_wsi_from_buffered_list(wsi);
return n;
}
