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- /*
- * 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
- #ifdef SRTP_KERNEL
- #include "kernel_compat.h"
- #else /* SRTP_KERNEL */
- /* 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
- /* 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
- #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
- #endif /* SRTP_KERNEL */
- /* 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
- #endif /* INTEGERS_H */
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