/*

 * Copyright (C) 2010-2016 Free Software Foundation, Inc.

 * Copyright (C) 2016 Red Hat, Inc.

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * The GnuTLS 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.

 *

 * This 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 this program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#ifndef GNUTLS_LIB_SYSTEM_H

#define GNUTLS_LIB_SYSTEM_H

#include "gnutls_int.h"

#include <time.h>

#include <sys/time.h>

#ifdef _WIN32

# if defined(__MINGW32__) && !defined(__MINGW64__) && __MINGW32_MAJOR_VERSION <= 3 && __MINGW32_MINOR_VERSION <= 20

#  define NEED_CERT_ENUM_CRLS

typedef PCCRL_CONTEXT WINAPI(*CertEnumCRLsInStoreFunc) (HCERTSTORE

							 hCertStore,

							 PCCRL_CONTEXT

							 pPrevCrlContext);

extern CertEnumCRLsInStoreFunc pCertEnumCRLsInStore;

# else

#  define pCertEnumCRLsInStore CertEnumCRLsInStore

# endif

#include <windows.h>		/* for Sleep */

#else

#include <sys/uio.h>		/* for writev */

#endif

#ifdef _POSIX_PATH_MAX

# define GNUTLS_PATH_MAX _POSIX_PATH_MAX

#else

# define GNUTLS_PATH_MAX 256

#endif

int system_errno(gnutls_transport_ptr_t);

#ifdef _WIN32

ssize_t system_write(gnutls_transport_ptr_t ptr, const void *data,

		     size_t data_size);

#else

#define HAVE_WRITEV

ssize_t system_writev(gnutls_transport_ptr_t ptr, const giovec_t * iovec,

		      int iovec_cnt);

ssize_t system_writev_nosignal(gnutls_transport_ptr_t ptr, const giovec_t * iovec,

		      int iovec_cnt);

ssize_t system_writev_tfo(gnutls_session_t ptr, const giovec_t * iovec,

		      int iovec_cnt);

ssize_t system_writev_nosignal_tfo(gnutls_session_t ptr, const giovec_t * iovec,

		      int iovec_cnt);

#endif

ssize_t system_read(gnutls_transport_ptr_t ptr, void *data,

		    size_t data_size);

#if defined(_WIN32)

# define HAVE_WIN32_LOCKS

#elif defined(HAVE_LIBPTHREAD) || defined(HAVE_PTHREAD_MUTEX_LOCK)

# define HAVE_PTHREAD_LOCKS

#else

# define HAVE_NO_LOCKS

#endif

typedef void (*gnutls_gettime_func) (struct timespec *);

extern gnutls_time_func gnutls_time;

extern gnutls_gettime_func gnutls_gettime;

static inline void millisleep(unsigned int ms)

{

#ifdef _WIN32

	Sleep(ms);

#else

	struct timespec ts;

	ts.tv_sec = 0;

	ts.tv_nsec = ms * 1000 * 1000;

	nanosleep(&ts, NULL);

#endif

}

int _gnutls_find_config_path(char *path, size_t max_size);

int _gnutls_ucs2_to_utf8(const void *data, size_t size,

			 gnutls_datum_t * output, unsigned bigendian);

int _gnutls_utf8_to_ucs2(const void *data, size_t size,

			 gnutls_datum_t * output, unsigned be);

void _gnutls_global_set_gettime_function(gnutls_gettime_func gettime_func);

int gnutls_system_global_init(void);

void gnutls_system_global_deinit(void);

#endif /* GNUTLS_LIB_SYSTEM_H */