/*-

 * Copyright (c) 2003, 2004, 2007 Lev Walkin <vlm@lionet.info>.

 * All rights reserved.

 * Redistribution and modifications are permitted subject to BSD license.

 */

/*

 * Miscellaneous system-dependent types.

 */

#ifndef	_ASN_SYSTEM_H_

#define	_ASN_SYSTEM_H_

#ifdef	HAVE_CONFIG_H

#include "config.h"

#endif

#include <stdio.h>	/* For snprintf(3) */

#include <stdlib.h>	/* For *alloc(3) */

#include <string.h>	/* For memcpy(3) */

#include <sys/types.h>	/* For size_t */

#include <limits.h>	/* For LONG_MAX */

#include <stdarg.h>	/* For va_start */

#include <stddef.h>	/* for offsetof and ptrdiff_t */

#ifdef	_WIN32

#include <malloc.h>

#define	 snprintf	_snprintf

#define	 vsnprintf	_vsnprintf

/* To avoid linking with ws2_32.lib, here's the definition of ntohl() */

#define sys_ntohl(l)	((((l) << 24)  & 0xff000000)	\

			| (((l) << 8) & 0xff0000)	\

			| (((l) >> 8)  & 0xff00)	\

			| ((l >> 24) & 0xff))

#ifdef _MSC_VER			/* MSVS.Net */

#ifndef __cplusplus

#define inline __inline

#endif

#ifndef	ASSUMESTDTYPES	/* Standard types have been defined elsewhere */

#define	ssize_t		SSIZE_T

typedef	char		int8_t;

typedef	short		int16_t;

typedef	int		int32_t;

typedef	unsigned char	uint8_t;

typedef	unsigned short	uint16_t;

typedef	unsigned int	uint32_t;

#endif	/* ASSUMESTDTYPES */

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

#include <float.h>

#define isnan _isnan

#define finite _finite

#define copysign _copysign

#define	ilogb	_logb

#else	/* !_MSC_VER */

#include <stdint.h>

#endif	/* _MSC_VER */

#else	/* !_WIN32 */

#if defined(__vxworks)

#include <types/vxTypes.h>

#else	/* !defined(__vxworks) */

#include <inttypes.h>	/* C99 specifies this file */

/*

 * 1. Earlier FreeBSD version didn't have <stdint.h>,

 * but <inttypes.h> was present.

 * 2. Sun Solaris requires <alloca.h> for alloca(3),

 * but does not have <stdint.h>.

 */

#if	(!defined(__FreeBSD__) || !defined(_SYS_INTTYPES_H_))

#if	defined(sun)

#include <alloca.h>	/* For alloca(3) */

#include <ieeefp.h>	/* for finite(3) */

#elif	defined(__hpux)

#ifdef	__GNUC__

#include <alloca.h>	/* For alloca(3) */

#else	/* !__GNUC__ */

#define inline

#endif	/* __GNUC__ */

#else

#include <stdint.h>	/* SUSv2+ and C99 specify this file, for uintXX_t */

#endif	/* defined(sun) */

#endif

#include <netinet/in.h> /* for ntohl() */

#define	sys_ntohl(foo)	ntohl(foo)

#endif	/* defined(__vxworks) */

#endif	/* _WIN32 */

#if	__GNUC__ >= 3

#ifndef	GCC_PRINTFLIKE

#define	GCC_PRINTFLIKE(fmt,var)	__attribute__((format(printf,fmt,var)))

#endif

#ifndef	GCC_NOTUSED

#define	GCC_NOTUSED		__attribute__((unused))

#endif

#else

#ifndef	GCC_PRINTFLIKE

#define	GCC_PRINTFLIKE(fmt,var)	/* nothing */

#endif

#ifndef	GCC_NOTUSED

#define	GCC_NOTUSED

#endif

#endif

/* Figure out if thread safety is requested */

#if !defined(ASN_THREAD_SAFE) && (defined(THREAD_SAFE) || defined(_REENTRANT))

#define	ASN_THREAD_SAFE

#endif	/* Thread safety */

#ifndef	offsetof	/* If not defined by <stddef.h> */

#define	offsetof(s, m)	((ptrdiff_t)&(((s *)0)->m) - (ptrdiff_t)((s *)0))

#endif	/* offsetof */

#ifndef	MIN		/* Suitable for comparing primitive types (integers) */

#if defined(__GNUC__)

#define	MIN(a,b)	({ __typeof a _a = a; __typeof b _b = b;	\

	((_a)<(_b)?(_a):(_b)); })

#else	/* !__GNUC__ */

#define	MIN(a,b)	((a)<(b)?(a):(b))	/* Unsafe variant */

#endif /* __GNUC__ */

#endif	/* MIN */

#endif	/* _ASN_SYSTEM_H_ */