368 lines
7.4 KiB
C
368 lines
7.4 KiB
C
/* Copyright (c) 2003, Roger Dingledine
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file torint.h
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* \brief Header file to define uint32_t and friends
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**/
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#ifndef TOR_TORINT_H
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#define TOR_TORINT_H
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#include "orconfig.h"
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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#ifdef HAVE_SYS_LIMITS_H
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#include <sys/limits.h>
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#endif
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#ifdef HAVE_MACHINE_LIMITS_H
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#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
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/* FreeBSD has a bug where it complains that this file is obsolete,
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and I should migrate to using sys/limits. It complains even when
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I include both.
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__FreeBSD_kernel__ is defined by Debian GNU/kFreeBSD which
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does the same thing (but doesn't defined __FreeBSD__).
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*/
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#include <machine/limits.h>
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#endif
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#endif
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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#if (SIZEOF_INT8_T != 0)
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#define HAVE_INT8_T
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#endif
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#if (SIZEOF_INT16_T != 0)
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#define HAVE_INT16_T
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#endif
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#if (SIZEOF_INT32_T != 0)
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#define HAVE_INT32_T
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#endif
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#if (SIZEOF_INT64_T != 0)
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#define HAVE_INT64_T
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#endif
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#if (SIZEOF_UINT8_T != 0)
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#define HAVE_UINT8_T
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#endif
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#if (SIZEOF_UINT16_T != 0)
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#define HAVE_UINT16_T
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#endif
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#if (SIZEOF_UINT32_T != 0)
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#define HAVE_UINT32_T
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#endif
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#if (SIZEOF_UINT64_T != 0)
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#define HAVE_UINT64_T
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#endif
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#if (SIZEOF_INTPTR_T != 0)
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#define HAVE_INTPTR_T
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#endif
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#if (SIZEOF_UINTPTR_T != 0)
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#define HAVE_UINTPTR_T
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#endif
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#if (SIZEOF_CHAR == 1)
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#ifndef HAVE_INT8_T
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typedef signed char int8_t;
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#define HAVE_INT8_T
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#endif
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#ifndef HAVE_UINT8_T
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typedef unsigned char uint8_t;
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#define HAVE_UINT8_T
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#endif
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#endif
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#if (SIZEOF_SHORT == 2)
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#ifndef HAVE_INT16_T
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typedef signed short int16_t;
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#define HAVE_INT16_T
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#endif
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#ifndef HAVE_UINT16_T
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typedef unsigned short uint16_t;
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#define HAVE_UINT16_T
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#endif
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#endif
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#if (SIZEOF_INT == 2)
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#ifndef HAVE_INT16_T
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typedef signed int int16_t;
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#define HAVE_INT16_T
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#endif
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#ifndef HAVE_UINT16_T
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typedef unsigned int uint16_t;
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#define HAVE_UINT16_T
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#endif
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#elif (SIZEOF_INT == 4)
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#ifndef HAVE_INT32_T
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typedef signed int int32_t;
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#define HAVE_INT32_T
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#endif
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#ifndef HAVE_UINT32_T
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typedef unsigned int uint32_t;
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#define HAVE_UINT32_T
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#endif
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#ifndef UINT16_MAX
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#define UINT16_MAX 0xffffu
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#endif
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#ifndef INT16_MAX
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#define INT16_MAX 0x7fff
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#endif
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#ifndef INT16_MIN
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#define INT16_MIN (-INT16_MAX-1)
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#endif
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#ifndef UINT32_MAX
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#define UINT32_MAX 0xffffffffu
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#endif
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#ifndef INT32_MAX
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#define INT32_MAX 0x7fffffff
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#endif
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#ifndef INT32_MIN
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#define INT32_MIN (-2147483647-1)
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#endif
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#endif
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#if (SIZEOF_LONG == 4)
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#ifndef HAVE_INT32_T
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typedef signed long int32_t;
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#define HAVE_INT32_T
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#endif
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#ifndef HAVE_UINT32_T
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typedef unsigned long uint32_t;
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#define HAVE_UINT32_T
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#ifndef UINT32_MAX
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#define UINT32_MAX 0xfffffffful
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#endif
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#endif
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#elif (SIZEOF_LONG == 8)
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#ifndef HAVE_INT64_T
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typedef signed long int64_t;
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#define HAVE_INT64_T
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#endif
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#ifndef HAVE_UINT32_T
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typedef unsigned long uint64_t;
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#define HAVE_UINT32_T
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#endif
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#ifndef UINT64_MAX
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#define UINT64_MAX 0xfffffffffffffffful
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#endif
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#endif
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#if (SIZEOF_LONG_LONG == 8)
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#ifndef HAVE_INT64_T
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typedef signed long long int64_t;
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#define HAVE_INT64_T
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#endif
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#ifndef HAVE_UINT64_T
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typedef unsigned long long uint64_t;
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#define HAVE_UINT64_T
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#endif
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#ifndef UINT64_MAX
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#define UINT64_MAX 0xffffffffffffffffull
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#endif
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#ifndef INT64_MAX
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#define INT64_MAX 0x7fffffffffffffffll
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#endif
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#endif
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#if (SIZEOF___INT64 == 8)
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#ifndef HAVE_INT64_T
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typedef signed __int64 int64_t;
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#define HAVE_INT64_T
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#endif
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#ifndef HAVE_UINT64_T
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typedef unsigned __int64 uint64_t;
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#define HAVE_UINT64_T
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#endif
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#ifndef UINT64_MAX
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#define UINT64_MAX 0xffffffffffffffffui64
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#endif
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#ifndef INT64_MAX
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#define INT64_MAX 0x7fffffffffffffffi64
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#endif
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#endif
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#ifndef INT64_MIN
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#define INT64_MIN ((- INT64_MAX) - 1)
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#endif
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#ifndef SIZE_MAX
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#if SIZEOF_SIZE_T == 8
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#define SIZE_MAX UINT64_MAX
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#elif SIZEOF_SIZE_T == 4
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#define SIZE_MAX UINT32_MAX
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#else
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#error "Can't define SIZE_MAX"
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#endif
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#endif
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#ifndef HAVE_SSIZE_T
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#if SIZEOF_SIZE_T == 8
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typedef int64_t ssize_t;
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#elif SIZEOF_SIZE_T == 4
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typedef int32_t ssize_t;
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#else
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#error "Can't define ssize_t."
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#endif
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#endif
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#if (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8)
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#ifndef HAVE_INTPTR_T
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typedef int64_t intptr_t;
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#define SIZEOF_INTPTR_T 8
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#endif
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#ifndef HAVE_UINTPTR_T
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typedef uint64_t uintptr_t;
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#define SIZEOF_UINTPTR_T 8
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#endif
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#elif (SIZEOF_VOID_P > 2 && SIZEOF_VOID_P <= 4)
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#ifndef HAVE_INTPTR_T
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typedef int32_t intptr_t;
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#define SIZEOF_INTPTR_T 4
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#endif
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#ifndef HAVE_UINTPTR_T
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typedef uint32_t uintptr_t;
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#define SIZEOF_UINTPTR_T 4
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#endif
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#else
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#error "void * is either >8 bytes or <= 2. In either case, I am confused."
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#endif
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#ifndef HAVE_INT8_T
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#error "Missing type int8_t"
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#endif
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#ifndef HAVE_UINT8_T
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#error "Missing type uint8_t"
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#endif
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#ifndef HAVE_INT16_T
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#error "Missing type int16_t"
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#endif
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#ifndef HAVE_UINT16_T
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#error "Missing type uint16_t"
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#endif
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#ifndef HAVE_INT32_T
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#error "Missing type int32_t"
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#endif
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#ifndef HAVE_UINT32_T
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#error "Missing type uint32_t"
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#endif
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#ifndef HAVE_INT64_T
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#error "Missing type int64_t"
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#endif
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#ifndef HAVE_UINT64_T
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#error "Missing type uint64_t"
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#endif
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/* This assumes a sane (2's-complement) representation. But if you
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* aren't 2's complement, and you don't define LONG_MAX, then you're so
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* bizarre that I want nothing to do with you. */
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#ifndef USING_TWOS_COMPLEMENT
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#error "Seems that your platform doesn't use 2's complement arithmetic. Argh."
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#endif
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#ifndef LONG_MAX
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#if (SIZEOF_LONG == 4)
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#define LONG_MAX 0x7fffffffL
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#elif (SIZEOF_LONG == 8)
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#define LONG_MAX 0x7fffffffffffffffL
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#else
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#error "Can't define LONG_MAX"
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#endif
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#endif
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#ifndef INT_MAX
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#if (SIZEOF_INT == 4)
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#define INT_MAX 0x7fffffffL
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#elif (SIZEOF_INT == 8)
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#define INT_MAX 0x7fffffffffffffffL
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#else
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#error "Can't define INT_MAX"
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#endif
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#endif
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#ifndef UINT_MAX
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#if (SIZEOF_INT == 2)
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#define UINT_MAX 0xffffu
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#elif (SIZEOF_INT == 4)
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#define UINT_MAX 0xffffffffu
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#elif (SIZEOF_INT == 8)
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#define UINT_MAX 0xffffffffffffffffu
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#else
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#error "Can't define UINT_MAX"
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#endif
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#endif
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#ifndef SHORT_MAX
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#if (SIZEOF_SHORT == 2)
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#define SHORT_MAX 0x7fff
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#elif (SIZEOF_SHORT == 4)
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#define SHORT_MAX 0x7fffffff
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#else
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#error "Can't define SHORT_MAX"
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#endif
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#endif
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#ifndef TIME_MAX
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#if (SIZEOF_TIME_T == SIZEOF_INT)
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#define TIME_MAX ((time_t)INT_MAX)
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#elif (SIZEOF_TIME_T == SIZEOF_LONG)
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#define TIME_MAX ((time_t)LONG_MAX)
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#elif (SIZEOF_TIME_T == 8)
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#define TIME_MAX ((time_t)INT64_MAX)
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#else
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#error "Can't define TIME_MAX"
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#endif
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#endif /* ifndef(TIME_MAX) */
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#ifndef TIME_MIN
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#if (SIZEOF_TIME_T == SIZEOF_INT)
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#define TIME_MIN ((time_t)INT_MIN)
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#elif (SIZEOF_TIME_T == SIZEOF_LONG)
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#define TIME_MIN ((time_t)LONG_MIN)
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#elif (SIZEOF_TIME_T == 8)
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#define TIME_MIN ((time_t)INT64_MIN)
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#else
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#error "Can't define TIME_MIN"
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#endif
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#endif /* ifndef(TIME_MIN) */
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#ifndef SIZE_MAX
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#if (SIZEOF_SIZE_T == 4)
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#define SIZE_MAX UINT32_MAX
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#elif (SIZEOF_SIZE_T == 8)
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#define SIZE_MAX UINT64_MAX
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#else
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#error "Can't define SIZE_MAX"
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#endif
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#endif
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#ifndef SSIZE_MAX
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#if (SIZEOF_SIZE_T == 4)
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#define SSIZE_MAX INT32_MAX
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#elif (SIZEOF_SIZE_T == 8)
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#define SSIZE_MAX INT64_MAX
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#else
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#error "Can't define SSIZE_MAX"
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#endif
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#endif
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/** Any ssize_t larger than this amount is likely to be an underflow. */
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#define SSIZE_T_CEILING ((ssize_t)(SSIZE_MAX-16))
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/** Any size_t larger than this amount is likely to be an underflow. */
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#define SIZE_T_CEILING ((size_t)(SSIZE_MAX-16))
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#endif /* __TORINT_H */
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