| /* |
| * integers.h |
| * |
| * defines integer types (or refers to their definitions) |
| * |
| * David A. McGrew |
| * Cisco Systems, Inc. |
| */ |
| |
| /* |
| * |
| * Copyright (c) 2001-2006, 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 1 |
| # 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(addr,value) \ |
| { \ |
| ((unsigned char *) (addr))[0] = (value >> 24); \ |
| ((unsigned char *) (addr))[1] = (value >> 16) & 0xff; \ |
| ((unsigned char *) (addr))[2] = (value >> 8) & 0xff; \ |
| ((unsigned char *) (addr))[3] = (value) & 0xff; \ |
| } |
| #define GET_32(addr) ((((unsigned char *) (addr))[0] << 24) | \ |
| (((unsigned char *) (addr))[1] << 16) | \ |
| (((unsigned char *) (addr))[2] << 8) | \ |
| (((unsigned char *) (addr))[3])) |
| #else |
| #define PUT_32(addr,value) \ |
| { \ |
| ((unsigned char *) (addr))[3] = (value >> 24); \ |
| ((unsigned char *) (addr))[2] = (value >> 16) & 0xff; \ |
| ((unsigned char *) (addr))[1] = (value >> 8) & 0xff; \ |
| ((unsigned char *) (addr))[0] = (value) & 0xff; \ |
| } |
| #define GET_32(addr) ((((unsigned char *) (addr))[3] << 24) | \ |
| (((unsigned char *) (addr))[2] << 16) | \ |
| (((unsigned char *) (addr))[1] << 8) | \ |
| (((unsigned char *) (addr))[0])) |
| #endif // WORDS_BIGENDIAN |
| #else |
| #define PUT_32(addr,value) *(((uint32_t *) (addr)) = (value) |
| #define GET_32(addr) (*(((uint32_t *) (addr))) |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* INTEGERS_H */ |