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xrdp-proprietary/libxrdp/xrdp_tcp.c

90 lines
2.4 KiB

/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004 - 2012
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* tcp layer
*/
#include "libxrdp.h"
/*****************************************************************************/
struct xrdp_tcp *APP_CC
xrdp_tcp_create(struct xrdp_iso *owner, struct trans *trans)
{
struct xrdp_tcp *self;
DEBUG((" in xrdp_tcp_create"));
self = (struct xrdp_tcp *)g_malloc(sizeof(struct xrdp_tcp), 1);
self->iso_layer = owner;
self->trans = trans;
DEBUG((" out xrdp_tcp_create"));
return self;
}
/*****************************************************************************/
void APP_CC
xrdp_tcp_delete(struct xrdp_tcp *self)
{
g_free(self);
}
/*****************************************************************************/
/* get out stream ready for data */
/* returns error */
int APP_CC
xrdp_tcp_init(struct xrdp_tcp *self, struct stream *s)
{
init_stream(s, 8192);
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_tcp_recv(struct xrdp_tcp *self, struct stream *s, int len)
{
DEBUG((" in xrdp_tcp_recv, gota get %d bytes", len));
init_stream(s, len);
if (trans_force_read_s(self->trans, s, len) != 0)
{
DEBUG((" error in trans_force_read_s"));
return 1;
}
DEBUG((" out xrdp_tcp_recv"));
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
xrdp_tcp_send(struct xrdp_tcp *self, struct stream *s)
{
int len;
len = s->end - s->data;
DEBUG((" in xrdp_tcp_send, gota send %d bytes", len));
if (trans_force_write_s(self->trans, s) != 0)
{
DEBUG((" error in trans_force_write_s"));
return 1;
}
DEBUG((" out xrdp_tcp_send, sent %d bytes ok", len));
return 0;
}