/*
 * This file is part of the SSH Library
 *
 * Copyright (c) 2010 by Aris Adamantiadis
 *
 * 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.
 */

#define LIBSSH_STATIC

#include "torture.h"
#include <libssh/libssh.h>
#include <sys/time.h>
#include <arpa/inet.h>

#define HOST "localhost"
/* Should work until Apnic decides to assign it :) */
#define BLACKHOLE "1.1.1.1"

static void setup(void **state) {
    int verbosity=torture_libssh_verbosity();
    ssh_session session = ssh_new();

    ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);

    *state = session;
}

static void teardown(void **state) {
    ssh_session session = *state;
    ssh_disconnect(session);
    ssh_free(session);
}

static void torture_connect_nonblocking(void **state) {
    ssh_session session = *state;

    int rc;

    rc = ssh_options_set(session, SSH_OPTIONS_HOST, HOST);
    assert_true(rc == SSH_OK);
    ssh_set_blocking(session,0);

    do {
        rc = ssh_connect(session);
        assert_true(rc != SSH_ERROR);
    } while(rc == SSH_AGAIN);

    assert_true(rc == SSH_OK);
}

static void torture_connect_timeout(void **state) {
    ssh_session session = *state;
    struct timeval before, after;
    int rc;
    long timeout = 2;
    time_t sec;
    suseconds_t usec;

    rc = ssh_options_set(session, SSH_OPTIONS_HOST, BLACKHOLE);
    assert_true(rc == SSH_OK);
    rc = ssh_options_set(session, SSH_OPTIONS_TIMEOUT, &timeout);
    assert_true(rc == SSH_OK);

    rc = gettimeofday(&before, NULL);
    assert_true(rc == 0);
    rc = ssh_connect(session);
    assert_true(rc == SSH_ERROR);
    rc = gettimeofday(&after, NULL);
    assert_true(rc == 0);
    sec = after.tv_sec - before.tv_sec;
    usec = after.tv_usec - before.tv_usec;
    /* Borrow a second for the missing usecs, but don't bother calculating */
    if (usec < 0)
      sec--;
    assert_in_range(sec, 1, 3);
}

static void torture_connect_double(void **state) {
    ssh_session session = *state;

    int rc;

    rc = ssh_options_set(session, SSH_OPTIONS_HOST, HOST);
    assert_true(rc == SSH_OK);
    rc = ssh_connect(session);
    assert_true(rc == SSH_OK);
    ssh_disconnect(session);

    rc = ssh_connect(session);
    assert_true(rc == SSH_OK);
}

static void torture_connect_failure(void **state) {
    /*
     * The intent of this test is to check that a fresh
     * ssh_new/ssh_disconnect/ssh_free sequence doesn't crash/leak
     * and the behavior of a double ssh_disconnect
     */
    ssh_session session = *state;
    ssh_disconnect(session);
}

static void torture_connect_socket(void **state) {
    ssh_session session = *state;

    int rc;
    int sock_fd = 0;
    struct sockaddr_in server_addr;

    sock_fd = socket(AF_INET, SOCK_STREAM, 0);
    assert_true(sock_fd > 0);

    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(22);
    server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

    rc = connect(sock_fd, (struct sockaddr *)&server_addr, sizeof(server_addr));
    assert_true(rc == 0);

    ssh_options_set(session, SSH_OPTIONS_FD, &sock_fd);

    rc = ssh_connect(session);
    assert_true(rc == SSH_OK);
}

int torture_run_tests(void) {
    int rc;
    const UnitTest tests[] = {
        unit_test_setup_teardown(torture_connect_nonblocking, setup, teardown),
        unit_test_setup_teardown(torture_connect_double, setup, teardown),
        unit_test_setup_teardown(torture_connect_failure, setup, teardown),
        unit_test_setup_teardown(torture_connect_timeout, setup, teardown),
        unit_test_setup_teardown(torture_connect_socket, setup, teardown),
    };

    ssh_init();

    rc = run_tests(tests);

    ssh_finalize();
    return rc;
}