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/* session-type.c -- SSH session smob.
*
* Copyright (C) 2013, 2014, 2015, 2016 Artyom V. Poptsov <poptsov.artyom@gmail.com>
*
* This file is part of Guile-SSH.
*
* Guile-SSH is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Guile-SSH 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Guile-SSH. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <libguile.h>
#include <libssh/libssh.h>
#include <string.h>
#include "session-type.h"
#include "channel-type.h"
#include "session-func.h"
#include "error.h"
#include "common.h"
scm_t_bits session_tag; /* Smob tag. */
SCM
mark_session (SCM session_smob)
{
struct session_data *sd = _scm_to_session_data (session_smob);
return sd->callbacks;
}
/* Handle GC'ing of the session smob. */
size_t
free_session (SCM session)
{
struct session_data *sd = (struct session_data *) SCM_SMOB_DATA (session);
ssh_disconnect (sd->ssh_session);
ssh_free (sd->ssh_session);
SCM_SET_SMOB_DATA (session, NULL);
return 0;
}
/* Create a new session. */
SCM_DEFINE (guile_ssh_make_session, "%make-session", 0, 0, 0,
(),
"\
Create a new session.\
")
{
SCM smob;
struct session_data *session_data
= (struct session_data *) scm_gc_malloc (sizeof (struct session_data),
"session");
session_data->ssh_session = ssh_new ();
if (session_data->ssh_session == NULL)
return SCM_BOOL_F;
session_data->callbacks = SCM_BOOL_F;
SCM_NEWSMOB (smob, session_tag, session_data);
return smob;
}
static int
print_session (SCM session, SCM port, scm_print_state *pstate)
{
struct session_data *sd = _scm_to_session_data (session);
char *user = NULL;
char *host = NULL;
unsigned int ssh_port;
int res;
scm_puts ("#<session ", port);
res = ssh_options_get (sd->ssh_session, SSH_OPTIONS_USER, &user);
scm_display ((res == SSH_OK) ? scm_from_locale_string (user) : SCM_UNDEFINED,
port);
ssh_string_free_char (user);
scm_putc ('@', port);
res = ssh_options_get (sd->ssh_session, SSH_OPTIONS_HOST, &host);
scm_display ((res == SSH_OK) ? scm_from_locale_string (host) : SCM_UNDEFINED,
port);
ssh_string_free_char (host);
scm_putc (':', port);
res = ssh_options_get_port (sd->ssh_session, &ssh_port);
scm_display ((res == SSH_OK) ? scm_from_int (ssh_port) : SCM_UNDEFINED, port);
scm_puts (ssh_is_connected (sd->ssh_session) ? " (connected) "
: " (disconnected) ",
port);
scm_display (_scm_object_hex_address (session), port);
scm_putc ('>', port);
return 1;
}
/* Predicates */
SCM_DEFINE (guile_ssh_is_session_p, "session?", 1, 0, 0,
(SCM x),
"\
Return #t if X is a SSH session, #f otherwise.\
")
{
return scm_from_bool (SCM_SMOB_PREDICATE (session_tag, x));
}
SCM
equalp_session (SCM x1, SCM x2)
{
struct session_data *session1 = _scm_to_session_data (x1);
struct session_data *session2 = _scm_to_session_data (x2);
if ((! session1) || (! session2))
return SCM_BOOL_F;
else if (session1 != session2)
return SCM_BOOL_F;
else
return SCM_BOOL_T;
}
/* Helper procedures */
/* Convert SCM object to a SSH session */
struct session_data*
_scm_to_session_data (SCM x)
{
scm_assert_smob_type (session_tag, x);
return (struct session_data *) SCM_SMOB_DATA (x);
}
/* session smob initialization. */
void
init_session_type (void)
{
session_tag = scm_make_smob_type ("session",
sizeof (struct session_data));
scm_set_smob_mark (session_tag, mark_session);
scm_set_smob_free (session_tag, free_session);
scm_set_smob_print (session_tag, print_session);
scm_set_smob_equalp (session_tag, equalp_session);
#include "session-type.x"
}
/* session.c ends here */
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