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/*
* ntp_types.h - defines how int32 and u_int32 are treated.
*
* New style: Make sure C99 fixed width integer types are available:
* intN_t and uintN_t
* Old style: defines how int32 and u_int32 are treated.
* For 64 bit systems like the DEC Alpha, they have to be defined
* as int and u_int.
* For 32 bit systems, define them as long and u_long
*/
#ifndef NTP_TYPES_H
#define NTP_TYPES_H
#include <sys/types.h>
#if defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#if defined(HAVE_STDINT_H)
# include <stdint.h>
#endif
/* Bug 2813 */
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#include "ntp_machine.h"
#ifndef TRUE
# define TRUE 1
#endif
#ifndef FALSE
# define FALSE 0
#endif
/*
* This is another naming conflict.
* On NetBSD for MAC the macro "mac" is defined as 1
* this is fun for us as a packet structure contains an
* optional "mac" member - severe confusion results 8-)
* As we hopefully do not have to rely on that macro we
* just undefine that.
*/
#ifdef mac
#undef mac
#endif
/*
* used to quiet compiler warnings
*/
#ifndef UNUSED_ARG
#define UNUSED_ARG(arg) ((void)(arg))
#endif
#ifndef UNUSED_LOCAL
#define UNUSED_LOCAL(arg) ((void)(arg))
#endif
/*
* COUNTOF(array) - size of array in elements
*/
#define COUNTOF(arr) (sizeof(arr) / sizeof((arr)[0]))
/*
* VMS DECC (v4.1), {u_char,u_short,u_long} are only in SOCKET.H,
* and u_int isn't defined anywhere
*/
#if defined(VMS)
#include <socket.h>
typedef unsigned int u_int;
#endif /* VMS */
#ifdef HAVE_UINT32_T
# ifndef HAVE_INT32
typedef int32_t int32;
# endif
# ifndef HAVE_U_INT32
typedef uint32_t u_int32;
# if defined(UINT32_MAX) && !defined(U_INT32_MAX)
# define U_INT32_MAX UINT32_MAX
# endif
# endif
#elif (SIZEOF_INT == 4)
# if !defined(HAVE_INT32) && !defined(int32)
typedef int int32;
# ifndef INT32_MIN
# define INT32_MIN INT_MIN
# endif
# ifndef INT32_MAX
# define INT32_MAX INT_MAX
# endif
# endif
# if !defined(HAVE_U_INT32) && !defined(u_int32)
typedef unsigned u_int32;
# if defined(UINT_MAX) && !defined(U_INT32_MAX)
# define U_INT32_MAX UINT_MAX
# endif
# endif
#else /* SIZEOF_INT != 4 */
# if (SIZEOF_LONG == 4)
# if !defined(HAVE_INT32) && !defined(int32)
typedef long int32;
# ifndef INT32_MIN
# define INT32_MIN LONG_MIN
# endif
# ifndef INT32_MAX
# define INT32_MAX LONG_MAX
# endif
# endif
# if !defined(HAVE_U_INT32) && !defined(u_int32)
typedef unsigned long u_int32;
# if defined(ULONG_MAX) && !defined(U_INT32_MAX)
# define U_INT32_MAX ULONG_MAX
# endif
# endif
# else /* SIZEOF_LONG != 4 */
# include "Bletch: what's 32 bits on this machine?"
# endif
#endif /* !HAVE_UINT32_T && SIZEOF_INT != 4 */
#ifndef U_INT32_MAX
# define U_INT32_MAX 0xffffffff
#endif
/*
* Ugly dance to find out if we have 64bit integer type.
*/
#if !defined(HAVE_INT64)
/* assume best for now, fix if frustrated later. */
# define HAVE_INT64
# define HAVE_U_INT64
/* now check the cascade. Feel free to add things. */
# ifdef INT64_MAX
typedef int64_t int64;
typedef uint64_t u_int64;
# elif SIZEOF_LONG == 8
typedef long int64;
typedef unsigned long u_int64;
# elif SIZEOF_LONG_LONG == 8
typedef long long int64;
typedef unsigned long long u_int64;
# else
/* no 64bit scalar, give it up. */
# undef HAVE_INT64
# undef HAVE_U_INT64
# endif
#endif
/*
* and here the trouble starts: We need a representation with more than
* 64 bits. If a scalar of that size is not available, we need a struct
* that holds the value in split representation.
*
* To ease the usage a bit, we alwys use a union that is in processor
* byte order and might or might not contain a 64bit scalar.
*/
#if SIZEOF_SHORT != 2
# error short is not 2 bytes -- what is 16 bit integer on this target?
#endif
typedef union {
# ifdef WORDS_BIGENDIAN
struct {
int16_t hh; uint16_t hl; uint16_t lh; uint16_t ll;
} w_s;
struct {
uint16_t hh; uint16_t hl; uint16_t lh; uint16_t ll;
} W_s;
struct {
int32 hi; u_int32 lo;
} d_s;
struct {
u_int32 hi; u_int32 lo;
} D_s;
# else
struct {
uint16_t ll; uint16_t lh; uint16_t hl; int16_t hh;
} w_s;
struct {
uint16_t ll; uint16_t lh; uint16_t hl; uint16_t hh;
} W_s;
struct {
u_int32 lo; int32 hi;
} d_s;
struct {
u_int32 lo; u_int32 hi;
} D_s;
# endif
# ifdef HAVE_INT64
int64 q_s; /* signed quad scalar */
u_int64 Q_s; /* unsigned quad scalar */
# endif
} vint64; /* variant int 64 */
typedef uint8_t ntp_u_int8_t;
typedef uint16_t ntp_u_int16_t;
typedef uint32_t ntp_u_int32_t;
typedef struct ntp_uint64_t { u_int32 val[2]; } ntp_uint64_t;
typedef uint16_t associd_t; /* association ID */
#define ASSOCID_MAX USHRT_MAX
typedef u_int32 keyid_t; /* cryptographic key ID */
#define KEYID_T_MAX (0xffffffff)
typedef u_int32 tstamp_t; /* NTP seconds timestamp */
/*
* Cloning malloc()'s behavior of always returning pointers suitably
* aligned for the strictest alignment requirement of any type is not
* easy to do portably, as the maximum alignment required is not
* exposed. Use the size of a union of the types known to represent the
* strictest alignment on some platform.
*/
typedef union max_alignment_tag {
double d;
} max_alignment;
#define MAXALIGN sizeof(max_alignment)
#define ALIGN_UNITS(sz) (((sz) + MAXALIGN - 1) / MAXALIGN)
#define ALIGNED_SIZE(sz) (MAXALIGN * ALIGN_UNITS(sz))
#define INC_ALIGNED_PTR(b, m) ((void *)aligned_ptr((void *)(b), m))
static inline
max_alignment *
aligned_ptr(
max_alignment * base,
size_t minsize
)
{
return base + ALIGN_UNITS((minsize < 1) ? 1 : minsize);
}
/*
* Macro to use in otherwise-empty source files to comply with ANSI C
* requirement that each translation unit (source file) contain some
* declaration. This has commonly been done by declaring an unused
* global variable of type int or char. An extern reference to exit()
* serves the same purpose without bloat.
*/
#define NONEMPTY_TRANSLATION_UNIT extern void exit(int);
/*
* On Unix struct sock_timeval is equivalent to struct timeval.
* On Windows built with 64-bit time_t, sock_timeval.tv_sec is a long
* as required by Windows' socket() interface timeout argument, while
* timeval.tv_sec is time_t for the more common use as a UTC time
* within NTP.
*/
#ifndef SYS_WINNT
#define sock_timeval timeval
#endif
/*
* On Unix open() works for tty (serial) devices just fine, while on
* Windows refclock serial devices are opened using CreateFile, a lower
* level than the CRT-provided descriptors, because the C runtime lacks
* tty APIs. For refclocks which wish to use open() as well as or
* instead of refclock_open(), tty_open() is equivalent to open() on
* Unix and implemented in the Windows port similarly to
* refclock_open().
* Similarly, the termios emulation in the Windows code needs to know
* about serial ports being closed, while the Posix systems do not.
*/
#ifndef SYS_WINNT
# define tty_open(f, a, m) open(f, a, m)
# define closeserial(fd) close(fd)
# define closesocket(fd) close(fd)
typedef int SOCKET;
# define INVALID_SOCKET (-1)
# define SOCKET_ERROR (-1)
# define socket_errno() (errno)
#else /* SYS_WINNT follows */
# define socket_errno() (errno = WSAGetLastError())
#endif
#endif /* NTP_TYPES_H */
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