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2025-07-21 11:30:14 +01:00

123 lines
3.2 KiB
C

/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2022, all xrdp contributors
*
* 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.
*/
/**
*
* @file libipm/ccp.c
* @brief CCP definitions
* @author Matt Burt
*/
#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
#include <stddef.h>
#include <stdio.h>
#include "ccp.h"
#include "libipm.h"
#include "trans.h"
/*****************************************************************************/
static const char *
msgno_to_str(unsigned short n)
{
return
(n == E_CCP_CLOSE_CONNECTION_REQUEST) ? "E_CCP_CLOSE_CONNECTION_REQUEST" :
NULL;
}
/*****************************************************************************/
const char *
ccp_msgno_to_str(enum ccp_msg_code n, char *buff, unsigned int buff_size)
{
const char *str = msgno_to_str((unsigned short)n);
if (str == NULL)
{
(void)snprintf(buff, buff_size, "[code #%d]", (int)n);
}
else
{
(void)snprintf(buff, buff_size, "%s", str);
}
return buff;
}
/*****************************************************************************/
void
ccp_trans_from_scp_trans(struct trans *trans,
ttrans_data_in callback_func,
void *callback_data)
{
libipm_change_facility(trans, LIBIPM_FAC_SCP, LIBIPM_FAC_CCP);
trans->trans_data_in = callback_func;
trans->callback_data = callback_data;
}
/*****************************************************************************/
int
ccp_msg_in_check_available(struct trans *trans, int *available)
{
return libipm_msg_in_check_available(trans, available);
}
/*****************************************************************************/
enum ccp_msg_code
ccp_msg_in_get_msgno(const struct trans *trans)
{
return (enum ccp_msg_code)libipm_msg_in_get_msgno(trans);
}
/*****************************************************************************/
void
ccp_msg_in_reset(struct trans *trans)
{
libipm_msg_in_reset(trans);
}
/*****************************************************************************/
int
ccp_send_close_connection_request(struct trans *trans,
enum ccp_close_reason_type reason)
{
return libipm_msg_out_simple_send(
trans,
(int)E_CCP_CLOSE_CONNECTION_REQUEST,
"i", reason);
}
/*****************************************************************************/
int
ccp_get_close_connection_request(struct trans *trans,
enum ccp_close_reason_type *reason)
{
/* Intermediate values */
int32_t i_reason;
int rv = libipm_msg_in_parse( trans, "i", &i_reason);
if (rv == 0)
{
*reason = (enum ccp_close_reason_type)i_reason;
}
return rv;
}