2 * ntp_types.h - defines how int32 and u_int32 are treated.
4 * New style: Make sure C99 fixed width integer types are available:
7 * Old style: defines how int32 and u_int32 are treated.
8 * For 64 bit systems like the DEC Alpha, they have to be defined
10 * For 32 bit systems, define them as long and u_long
15 #include <sys/types.h>
16 #if defined(HAVE_INTTYPES_H)
17 # include <inttypes.h>
19 #if defined(HAVE_STDINT_H)
28 #include "ntp_machine.h"
41 typedef int bool; /* Can't use enum TRUE/FALSE because of above */
46 * This is another naming conflict.
47 * On NetBSD for MAC the macro "mac" is defined as 1
48 * this is fun for us as a packet structure contains an
49 * optional "mac" member - severe confusion results 8-)
50 * As we hopefully do not have to rely on that macro we
58 * used to quiet compiler warnings
61 #define UNUSED_ARG(arg) ((void)(arg))
64 #define UNUSED_LOCAL(arg) ((void)(arg))
68 * COUNTOF(array) - size of array in elements
70 #define COUNTOF(arr) (sizeof(arr) / sizeof((arr)[0]))
73 * VMS DECC (v4.1), {u_char,u_short,u_long} are only in SOCKET.H,
74 * and u_int isn't defined anywhere
78 typedef unsigned int u_int;
83 typedef int32_t int32;
86 typedef uint32_t u_int32;
87 # if defined(UINT32_MAX) && !defined(U_INT32_MAX)
88 # define U_INT32_MAX UINT32_MAX
91 #elif (SIZEOF_INT == 4)
92 # if !defined(HAVE_INT32) && !defined(int32)
95 # define INT32_MIN INT_MIN
98 # define INT32_MAX INT_MAX
101 # if !defined(HAVE_U_INT32) && !defined(u_int32)
102 typedef unsigned u_int32;
103 # if defined(UINT_MAX) && !defined(U_INT32_MAX)
104 # define U_INT32_MAX UINT_MAX
107 #else /* SIZEOF_INT != 4 */
108 # if (SIZEOF_LONG == 4)
109 # if !defined(HAVE_INT32) && !defined(int32)
112 # define INT32_MIN LONG_MIN
115 # define INT32_MAX LONG_MAX
118 # if !defined(HAVE_U_INT32) && !defined(u_int32)
119 typedef unsigned long u_int32;
120 # if defined(ULONG_MAX) && !defined(U_INT32_MAX)
121 # define U_INT32_MAX ULONG_MAX
124 # else /* SIZEOF_LONG != 4 */
125 # include "Bletch: what's 32 bits on this machine?"
127 #endif /* !HAVE_UINT32_T && SIZEOF_INT != 4 */
130 # define U_INT32_MAX 0xffffffff
135 * Ugly dance to find out if we have 64bit integer type.
137 #if !defined(HAVE_INT64)
139 /* assume best for now, fix if frustrated later. */
141 # define HAVE_U_INT64
143 /* now check the cascade. Feel free to add things. */
146 typedef int64_t int64;
147 typedef uint64_t u_int64;
149 # elif SIZEOF_LONG == 8
152 typedef unsigned long u_int64;
154 # elif SIZEOF_LONG_LONG == 8
156 typedef long long int64;
157 typedef unsigned long long u_int64;
161 /* no 64bit scalar, give it up. */
170 * and here the trouble starts: We need a representation with more than
171 * 64 bits. If a scalar of that size is not available, we need a struct
172 * that holds the value in split representation.
174 * To ease the usage a bit, we alwys use a union that is in processor
175 * byte order and might or might not contain a 64bit scalar.
178 #if SIZEOF_SHORT != 2
179 # error short is not 2 bytes -- what is 16 bit integer on this target?
183 # ifdef WORDS_BIGENDIAN
185 int16_t hh; uint16_t hl; uint16_t lh; uint16_t ll;
188 uint16_t hh; uint16_t hl; uint16_t lh; uint16_t ll;
191 int32 hi; u_int32 lo;
194 u_int32 hi; u_int32 lo;
198 uint16_t ll; uint16_t lh; uint16_t hl; int16_t hh;
201 uint16_t ll; uint16_t lh; uint16_t hl; uint16_t hh;
204 u_int32 lo; int32 hi;
207 u_int32 lo; u_int32 hi;
212 int64 q_s; /* signed quad scalar */
213 u_int64 Q_s; /* unsigned quad scalar */
215 } vint64; /* variant int 64 */
218 typedef uint8_t ntp_u_int8_t;
219 typedef uint16_t ntp_u_int16_t;
220 typedef uint32_t ntp_u_int32_t;
222 typedef struct ntp_uint64_t { u_int32 val[2]; } ntp_uint64_t;
224 typedef uint16_t associd_t; /* association ID */
225 #define ASSOCID_MAX USHRT_MAX
226 typedef u_int32 keyid_t; /* cryptographic key ID */
227 #define KEYID_T_MAX (0xffffffff)
229 typedef u_int32 tstamp_t; /* NTP seconds timestamp */
232 * Cloning malloc()'s behavior of always returning pointers suitably
233 * aligned for the strictest alignment requirement of any type is not
234 * easy to do portably, as the maximum alignment required is not
235 * exposed. Use the size of a union of the types known to represent the
236 * strictest alignment on some platform.
238 typedef union max_alignment_tag {
242 #define MAXALIGN sizeof(max_alignment)
243 #define ALIGN_UNITS(sz) (((sz) + MAXALIGN - 1) / MAXALIGN)
244 #define ALIGNED_SIZE(sz) (MAXALIGN * ALIGN_UNITS(sz))
245 #define INC_ALIGNED_PTR(b, m) ((void *)aligned_ptr((void *)(b), m))
250 max_alignment * base,
254 return base + ALIGN_UNITS((minsize < 1) ? 1 : minsize);
258 * Macro to use in otherwise-empty source files to comply with ANSI C
259 * requirement that each translation unit (source file) contain some
260 * declaration. This has commonly been done by declaring an unused
261 * global variable of type int or char. An extern reference to exit()
262 * serves the same purpose without bloat.
264 #define NONEMPTY_TRANSLATION_UNIT extern void exit(int);
267 * On Unix struct sock_timeval is equivalent to struct timeval.
268 * On Windows built with 64-bit time_t, sock_timeval.tv_sec is a long
269 * as required by Windows' socket() interface timeout argument, while
270 * timeval.tv_sec is time_t for the more common use as a UTC time
274 #define sock_timeval timeval
278 * On Unix open() works for tty (serial) devices just fine, while on
279 * Windows refclock serial devices are opened using CreateFile, a lower
280 * level than the CRT-provided descriptors, because the C runtime lacks
281 * tty APIs. For refclocks which wish to use open() as well as or
282 * instead of refclock_open(), tty_open() is equivalent to open() on
283 * Unix and implemented in the Windows port similarly to
285 * Similarly, the termios emulation in the Windows code needs to know
286 * about serial ports being closed, while the Posix systems do not.
289 # define tty_open(f, a, m) open(f, a, m)
290 # define closeserial(fd) close(fd)
291 # define closesocket(fd) close(fd)
293 # define INVALID_SOCKET (-1)
294 # define SOCKET_ERROR (-1)
295 # define socket_errno() (errno)
296 #else /* SYS_WINNT follows */
297 # define socket_errno() (errno = WSAGetLastError())
302 #endif /* NTP_TYPES_H */