LWS_VISIBLE int
lws_ssl_capable_write_no_ssl(struct lws *wsi, unsigned char *buf, int len)
{
int n = 0;
if (lws_wsi_is_udp(wsi)) {
#if !defined(LWS_WITH_ESP32)
if (wsi->trunc_len)
n = sendto(wsi->desc.sockfd, buf, len, 0, &wsi->udp->sa_pending, wsi->udp->salen_pending);
else
n = sendto(wsi->desc.sockfd, buf, len, 0, &wsi->udp->sa, wsi->udp->salen);
#endif
} else
n = send(wsi->desc.sockfd, (char *)buf, len, MSG_NOSIGNAL);
// lwsl_info("%s: sent len %d result %d", __func__, len, n);
if (n >= 0)
return n;
if (LWS_ERRNO == LWS_EAGAIN ||
LWS_ERRNO == LWS_EWOULDBLOCK ||
LWS_ERRNO == LWS_EINTR) {
if (LWS_ERRNO == LWS_EWOULDBLOCK) {
lws_set_blocking_send(wsi);
}
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
lwsl_debug("ERROR writing len %d to skt fd %d err %d / errno %d\n",
len, wsi->desc.sockfd, n, LWS_ERRNO);
return LWS_SSL_CAPABLE_ERROR;
}
LWS_VISIBLE int
lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len)
{
int n, m;
if (!wsi->tls.ssl)
return lws_ssl_capable_write_no_ssl(wsi, buf, len);
n = SSL_write(wsi->tls.ssl, buf, len);
if (n > 0)
return n;
m = SSL_get_error(wsi->tls.ssl, n);
if (m != SSL_ERROR_SYSCALL) {
if (m == SSL_ERROR_WANT_READ || SSL_want_read(wsi->tls.ssl)) {
lwsl_notice("%s: want read\n", __func__);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
if (m == SSL_ERROR_WANT_WRITE || SSL_want_write(wsi->tls.ssl)) {
lws_set_blocking_send(wsi);
lwsl_notice("%s: want write\n", __func__);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
}
lwsl_debug("%s failed: %d\n",__func__, m);
wsi->socket_is_permanently_unusable = 1;
return LWS_SSL_CAPABLE_ERROR;
}
LWS_VISIBLE int
lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len)
{
int n;
if (!wsi->ssl)
return lws_ssl_capable_write_no_ssl(wsi, buf, len);
#if defined(LWS_USE_POLARSSL)
n = ssl_write(wsi->ssl, buf, len);
#else
#if defined(LWS_USE_MBEDTLS)
#else
n = SSL_write(wsi->ssl, buf, len);
#endif
#endif
if (n > 0)
return n;
n = lws_ssl_get_error(wsi, n);
if (n == SSL_ERROR_WANT_READ || n == SSL_ERROR_WANT_WRITE) {
if (n == SSL_ERROR_WANT_WRITE)
lws_set_blocking_send(wsi);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
return LWS_SSL_CAPABLE_ERROR;
}
extern "C" LWS_VISIBLE int
lws_ssl_capable_write_no_ssl(struct lws *wsi, unsigned char *buf, int len)
{
socket_error_t err;
lws_conn *conn = (lws_conn *)wsi->sock;
lwsl_debug("%s: wsi %p: write %d (from %p)\n", __func__, (void *)wsi, len, (void *)buf);
lwsl_debug("%s: wsi %p: clear writeable\n", __func__, (void *)wsi);
conn->writeable = 0;
err = conn->ts->send((char *)buf, len);
if (err == SOCKET_ERROR_NONE)
return len;
#if LWS_POSIX
if (LWS_ERRNO == LWS_EAGAIN ||
LWS_ERRNO == LWS_EWOULDBLOCK ||
LWS_ERRNO == LWS_EINTR) {
if (LWS_ERRNO == LWS_EWOULDBLOCK)
lws_set_blocking_send(wsi);
#else
if (err == SOCKET_ERROR_WOULD_BLOCK)
return LWS_SSL_CAPABLE_MORE_SERVICE;
#endif
lwsl_warn("%s: wsi %p: ERROR %d writing len %d to skt\n", __func__, (void *)wsi, err, len);
return LWS_SSL_CAPABLE_ERROR;
}
/*
* Set the listening socket to listen.
*/
void lws_conn_listener::start(const uint16_t port)
{
socket_error_t err = srv.open(SOCKET_AF_INET4);
if (srv.error_check(err))
return;
err = srv.bind("0.0.0.0", port);
if (srv.error_check(err))
return;
err = srv.start_listening(TCPListener::IncomingHandler_t(this,
&lws_conn_listener::onIncoming));
srv.error_check(err);
}
LWS_VISIBLE int
lws_ssl_capable_write(struct libwebsocket *wsi, unsigned char *buf, int len)
{
int n;
if (!wsi->ssl)
return lws_ssl_capable_write_no_ssl(wsi, buf, len);
n = SSL_write(wsi->ssl, buf, len);
if (n >= 0)
return n;
n = SSL_get_error(wsi->ssl, n);
if (n == SSL_ERROR_WANT_READ || n == SSL_ERROR_WANT_WRITE) {
if (n == SSL_ERROR_WANT_WRITE)
lws_set_blocking_send(wsi);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
return LWS_SSL_CAPABLE_ERROR;
}
LWS_VISIBLE int
lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len)
{
int n, m;
if (!wsi->ssl)
return lws_ssl_capable_write_no_ssl(wsi, buf, len);
n = SSL_write(wsi->ssl, buf, len);
if (n > 0)
return n;
m = lws_ssl_get_error(wsi, n);
if (m != SSL_ERROR_SYSCALL) {
if (SSL_want_read(wsi->ssl)) {
lwsl_notice("%s: want read\n", __func__);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
if (SSL_want_write(wsi->ssl)) {
lws_set_blocking_send(wsi);
lwsl_notice("%s: want write\n", __func__);
return LWS_SSL_CAPABLE_MORE_SERVICE;
}
}
lwsl_debug("%s failed: %s\n",__func__, ERR_error_string(m, NULL));
lws_ssl_elaborate_error();
wsi->socket_is_permanently_unusable = 1;
return LWS_SSL_CAPABLE_ERROR;
}
