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/*
* callbacks.c - callback functions
*
* This file is part of the SSH Library
*
* Copyright (c) 2009-2013 by Andreas Schneider <asn@cryptomilk.org>
*
* The SSH Library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The SSH Library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#include "config.h"
#include "libssh/callbacks.h"
#include "libssh/session.h"
/* LEGACY */
static void ssh_legacy_log_callback(int priority,
const char *function,
const char *buffer,
void *userdata)
{
ssh_session session = (ssh_session)userdata;
ssh_log_callback log_fn = session->common.callbacks->log_function;
void *log_data = session->common.callbacks->userdata;
(void)function; /* unused */
log_fn(session, priority, buffer, log_data);
}
int ssh_set_callbacks(ssh_session session, ssh_callbacks cb) {
if (session == NULL || cb == NULL) {
return SSH_ERROR;
}
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
}
session->common.callbacks = cb;
/* LEGACY */
if (ssh_get_log_callback() == NULL && cb->log_function) {
ssh_set_log_callback(ssh_legacy_log_callback);
ssh_set_log_userdata(session);
}
return 0;
}
int ssh_set_channel_callbacks(ssh_channel channel, ssh_channel_callbacks cb) {
ssh_session session = NULL;
if (channel == NULL || cb == NULL) {
return SSH_ERROR;
}
session = channel->session;
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid channel callback passed in (badly initialized)");
return SSH_ERROR;
}
channel->callbacks = cb;
return 0;
}
int ssh_set_server_callbacks(ssh_session session, ssh_server_callbacks cb){
if (session == NULL || cb == NULL) {
return SSH_ERROR;
}
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
}
session->server_callbacks = cb;
return 0;
}
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