/*
* Copyright (c) 2019-2021 David Timber <mieabby@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>

#include <libssh2.h>
#include <pthsem.h>


int prne_lssh2_handshake (LIBSSH2_SESSION *s, const int fd, pth_event_t ev);
int prne_lssh2_ua_pwd (
	LIBSSH2_SESSION *s,
	const int fd,
	const char *id,
	const char *pw,
	pth_event_t ev);
LIBSSH2_CHANNEL *prne_lssh2_open_ch (
	LIBSSH2_SESSION *s,
	const int fd,
	pth_event_t ev,
	int *err);
int prne_lssh2_close_ch (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	pth_event_t ev);
int prne_lssh2_ch_wait_closed (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	pth_event_t ev);
int prne_lssh2_ch_req_pty (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	const char *term,
	pth_event_t ev);
int prne_lssh2_ch_sh (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	pth_event_t ev);
int prne_lssh2_ch_read (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	const bool s_err,
	void *buf,
	const size_t len,
	pth_event_t ev);
int prne_lssh2_ch_write (
	LIBSSH2_SESSION *s,
	LIBSSH2_CHANNEL *c,
	const int fd,
	const void *buf,
	const size_t len,
	pth_event_t ev);
int prne_lssh2_discon (
	LIBSSH2_SESSION *s,
	const int fd,
	const int reason,
	const char *desc,
	const char *lang,
	pth_event_t ev);
const char *prne_lssh2_ua_list (
	LIBSSH2_SESSION *s,
	const int fd,
	const char *username,
	pth_event_t ev,
	int *err);
int prne_lssh2_ua_authd (
	LIBSSH2_SESSION *s,
	const int fd,
	pth_event_t ev);

/* Workaround for the library's shitty design
*
* Cripples LIBSSH2_SESSION's ability to send() and recv() so that
* the library can't use the fd. This is used to guarantee that *_free()
* functions never return EAGAIN.
*/
void prne_lssh2_cripple_session (LIBSSH2_SESSION *s);
void prne_lssh2_free_session (LIBSSH2_SESSION *s);