/* * integers.h * * defines integer types (or refers to their definitions) * * David A. McGrew * Cisco Systems, Inc. */ /* * * Copyright (c) 2001-2017, Cisco Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of the Cisco Systems, Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef INTEGERS_H #define INTEGERS_H /* use standard integer definitions, if they're available */ #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif #ifdef HAVE_STDINT_H #include <stdint.h> #endif #ifdef HAVE_INTTYPES_H #include <inttypes.h> #endif #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif #ifdef HAVE_SYS_INT_TYPES_H #include <sys/int_types.h> /* this exists on Sun OS */ #endif #ifdef HAVE_MACHINE_TYPES_H #include <machine/types.h> #endif #ifdef __cplusplus extern "C" { #endif /* Can we do 64 bit integers? */ #if !defined(HAVE_UINT64_T) #if SIZEOF_UNSIGNED_LONG == 8 typedef unsigned long uint64_t; #elif SIZEOF_UNSIGNED_LONG_LONG == 8 typedef unsigned long long uint64_t; #else #define NO_64BIT_MATH … #endif #endif /* Reasonable defaults for 32 bit machines - you may need to * edit these definitions for your own machine. */ #ifndef HAVE_UINT8_T typedef unsigned char uint8_t; #endif #ifndef HAVE_UINT16_T typedef unsigned short int uint16_t; #endif #ifndef HAVE_UINT32_T typedef unsigned int uint32_t; #endif #ifndef HAVE_INT32_T typedef int int32_t; #endif #if defined(NO_64BIT_MATH) && defined(HAVE_CONFIG_H) typedef double uint64_t; /* assert that sizeof(double) == 8 */ extern uint64_t make64(uint32_t high, uint32_t low); extern uint32_t high32(uint64_t value); extern uint32_t low32(uint64_t value); #endif /* These macros are to load and store 32-bit values from un-aligned addresses. This is required for processors that do not allow unaligned loads. */ #ifdef ALIGNMENT_32BIT_REQUIRED /* Note that if it's in a variable, you can memcpy it */ #ifdef WORDS_BIGENDIAN #define PUT_32 … #define GET_32 … #else #define PUT_32 … #define GET_32 … #endif // WORDS_BIGENDIAN #else #define PUT_32(addr, value) … #define GET_32(addr) … #endif #ifdef __cplusplus } #endif #endif /* INTEGERS_H */