diff options
Diffstat (limited to 'include/ntp_types.h')
| -rw-r--r-- | include/ntp_types.h | 208 |
1 files changed, 183 insertions, 25 deletions
diff --git a/include/ntp_types.h b/include/ntp_types.h index c975a08163cc..1beb16647a66 100644 --- a/include/ntp_types.h +++ b/include/ntp_types.h @@ -1,5 +1,10 @@ /* * 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 @@ -8,8 +13,15 @@ #define NTP_TYPES_H #include <sys/types.h> +#if defined(HAVE_INTTYPES_H) +# include <inttypes.h> +#elif defined(HAVE_STDINT_H) +# include <stdint.h> +#endif + #include "ntp_machine.h" + #ifndef TRUE # define TRUE 1 #endif @@ -33,7 +45,10 @@ * used to quiet compiler warnings */ #ifndef UNUSED_ARG -#define UNUSED_ARG(arg) ((void)(arg)) +#define UNUSED_ARG(arg) ((void)(arg)) +#endif +#ifndef UNUSED_LOCAL +#define UNUSED_LOCAL(arg) ((void)(arg)) #endif /* @@ -48,15 +63,21 @@ #if defined(VMS) #include <socket.h> typedef unsigned int u_int; -/* - * Note: VMS DECC has long == int (even on __alpha), - * so the distinction below doesn't matter - */ #endif /* VMS */ -#if (SIZEOF_INT == 4) -# ifndef int32 -# define int32 int +#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 @@ -64,16 +85,16 @@ typedef unsigned int u_int; # define INT32_MAX INT_MAX # endif # endif -# ifndef u_int32 -# define u_int32 unsigned int -# ifndef U_INT32_MAX +# 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 /* not sizeof(int) == 4 */ +#else /* SIZEOF_INT != 4 */ # if (SIZEOF_LONG == 4) -# ifndef int32 -# define int32 long +# if !defined(HAVE_INT32) && !defined(int32) + typedef long int32; # ifndef INT32_MIN # define INT32_MIN LONG_MIN # endif @@ -81,28 +102,154 @@ typedef unsigned int u_int; # define INT32_MAX LONG_MAX # endif # endif -# ifndef u_int32 -# define u_int32 unsigned long -# ifndef U_INT32_MAX +# 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 /* not sizeof(long) == 4 */ +# else /* SIZEOF_LONG != 4 */ # include "Bletch: what's 32 bits on this machine?" -# endif /* not sizeof(long) == 4 */ -#endif /* not sizeof(int) == 4 */ +# 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 -typedef u_char ntp_u_int8_t; -typedef u_short ntp_u_int16_t; -typedef u_int32 ntp_u_int32_t; +/* 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 unsigned short associd_t; /* association ID */ +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 @@ -121,10 +268,21 @@ typedef u_int32 tstamp_t; /* NTP seconds timestamp */ * 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 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 */ |