size_t vio_ssl_write(Vio *vio, const uchar *buf, size_t size)
{
int ret;
SSL *ssl= vio->ssl_arg;
DBUG_ENTER("vio_ssl_write");
while ((ret= SSL_write(ssl, buf, size)) < 0)
{
enum enum_vio_io_event event;
/* Process the SSL I/O error. */
if (!ssl_should_retry(vio, ret, &event))
break;
/* Attempt to wait for an I/O event. */
if (vio_socket_io_wait(vio, event))
break;
}
DBUG_RETURN(ret < 0 ? -1 : ret);
}
static int ssl_handshake_loop(Vio *vio, SSL *ssl,
ssl_handshake_func_t func,
unsigned long *ssl_errno_holder)
{
int ret;
vio->ssl_arg= ssl;
/* Initiate the SSL handshake. */
while (1)
{
enum enum_vio_io_event event;
#ifndef HAVE_YASSL
/*
OpenSSL: check that the SSL thread's error queue is cleared. Otherwise
SSL-handshake-function returns an error from the error queue, when the
function failed because it would block.
*/
DBUG_ASSERT(ERR_peek_error() == 0);
#endif
ret= func(ssl);
if (ret >= 1)
break;
/* Process the SSL I/O error. */
if (!ssl_should_retry(vio, ret, &event, ssl_errno_holder))
break;
/* Wait for I/O so that the handshake can proceed. */
if (vio_socket_io_wait(vio, event))
break;
}
vio->ssl_arg= NULL;
return ret;
}
size_t vio_ssl_write(Vio *vio, const uchar *buf, size_t size)
{
int ret;
SSL *ssl= vio->ssl_arg;
unsigned long ssl_errno_not_used;
DBUG_ENTER("vio_ssl_write");
while (1)
{
enum enum_vio_io_event event;
#ifndef HAVE_YASSL
/*
OpenSSL: check that the SSL thread's error queue is cleared. Otherwise
SSL_write() returns an error from the error queue, when SSL_write() failed
because it would block.
*/
DBUG_ASSERT(ERR_peek_error() == 0);
#endif
ret= SSL_write(ssl, buf, (int)size);
if (ret >= 0)
break;
/* Process the SSL I/O error. */
if (!ssl_should_retry(vio, ret, &event, &ssl_errno_not_used))
break;
/* Attempt to wait for an I/O event. */
if (vio_socket_io_wait(vio, event))
break;
}
DBUG_RETURN(ret < 0 ? -1 : ret);
}
static int ssl_handshake_loop(Vio *vio, SSL *ssl, ssl_handshake_func_t func)
{
int ret;
vio->ssl_arg= ssl;
/* Initiate the SSL handshake. */
while ((ret= func(ssl)) < 1)
{
enum enum_vio_io_event event;
/* Process the SSL I/O error. */
if (!ssl_should_retry(vio, ret, &event))
break;
/* Wait for I/O so that the handshake can proceed. */
if (vio_socket_io_wait(vio, event))
break;
}
vio->ssl_arg= NULL;
return ret;
}
