netwerk/srtp/src/crypto/include/integers.h@6474c204b198 (annotated)
netwerk/srtp/src/crypto/include/integers.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * integers.h |
| michael@0 | 3 | * |
| michael@0 | 4 | * defines integer types (or refers to their definitions) |
| michael@0 | 5 | * |
| michael@0 | 6 | * David A. McGrew |
| michael@0 | 7 | * Cisco Systems, Inc. |
| michael@0 | 8 | */ |
| michael@0 | 9 | |
| michael@0 | 10 | /* |
| michael@0 | 11 | * |
| michael@0 | 12 | * Copyright (c) 2001-2006, Cisco Systems, Inc. |
| michael@0 | 13 | * All rights reserved. |
| michael@0 | 14 | * |
| michael@0 | 15 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 16 | * modification, are permitted provided that the following conditions |
| michael@0 | 17 | * are met: |
| michael@0 | 18 | * |
| michael@0 | 19 | * Redistributions of source code must retain the above copyright |
| michael@0 | 20 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 21 | * |
| michael@0 | 22 | * Redistributions in binary form must reproduce the above |
| michael@0 | 23 | * copyright notice, this list of conditions and the following |
| michael@0 | 24 | * disclaimer in the documentation and/or other materials provided |
| michael@0 | 25 | * with the distribution. |
| michael@0 | 26 | * |
| michael@0 | 27 | * Neither the name of the Cisco Systems, Inc. nor the names of its |
| michael@0 | 28 | * contributors may be used to endorse or promote products derived |
| michael@0 | 29 | * from this software without specific prior written permission. |
| michael@0 | 30 | * |
| michael@0 | 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| michael@0 | 34 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| michael@0 | 35 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| michael@0 | 36 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 37 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| michael@0 | 38 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| michael@0 | 39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| michael@0 | 40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 41 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| michael@0 | 42 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 43 | * |
| michael@0 | 44 | */ |
| michael@0 | 45 | |
| michael@0 | 46 | |
| michael@0 | 47 | #ifndef INTEGERS_H |
| michael@0 | 48 | #define INTEGERS_H |
| michael@0 | 49 | |
| michael@0 | 50 | #include "config.h" /* configuration file, using autoconf */ |
| michael@0 | 51 | |
| michael@0 | 52 | #ifdef SRTP_KERNEL |
| michael@0 | 53 | |
| michael@0 | 54 | #include "kernel_compat.h" |
| michael@0 | 55 | |
| michael@0 | 56 | #else /* SRTP_KERNEL */ |
| michael@0 | 57 | |
| michael@0 | 58 | /* use standard integer definitions, if they're available */ |
| michael@0 | 59 | #ifdef HAVE_STDLIB_H |
| michael@0 | 60 | # include <stdlib.h> |
| michael@0 | 61 | #endif |
| michael@0 | 62 | #ifdef INTEGER_TYPES_H |
| michael@0 | 63 | /* Let configure tell us where to get the equivalent to <stdint.h> */ |
| michael@0 | 64 | #include INTEGER_TYPES_H |
| michael@0 | 65 | |
| michael@0 | 66 | #if !defined(HAVE_UINT64_T) |
| michael@0 | 67 | #define NO_64BIT_MATH 1 |
| michael@0 | 68 | #endif |
| michael@0 | 69 | #else |
| michael@0 | 70 | #ifdef HAVE_STDINT_H |
| michael@0 | 71 | # include <stdint.h> |
| michael@0 | 72 | #endif |
| michael@0 | 73 | #endif /* INTEGER_TYPES_H */ |
| michael@0 | 74 | #ifdef HAVE_INTTYPES_H |
| michael@0 | 75 | # include <inttypes.h> |
| michael@0 | 76 | #endif |
| michael@0 | 77 | #ifdef HAVE_SYS_TYPES_H |
| michael@0 | 78 | # include <sys/types.h> |
| michael@0 | 79 | #endif |
| michael@0 | 80 | #ifdef HAVE_SYS_INT_TYPES_H |
| michael@0 | 81 | # include <sys/int_types.h> /* this exists on Sun OS */ |
| michael@0 | 82 | #endif |
| michael@0 | 83 | #ifdef HAVE_MACHINE_TYPES_H |
| michael@0 | 84 | # include <machine/types.h> |
| michael@0 | 85 | #endif |
| michael@0 | 86 | |
| michael@0 | 87 | /* Can we do 64 bit integers? */ |
| michael@0 | 88 | #if !defined(HAVE_UINT64_T) |
| michael@0 | 89 | # if SIZEOF_UNSIGNED_LONG == 8 |
| michael@0 | 90 | typedef unsigned long uint64_t; |
| michael@0 | 91 | # elif SIZEOF_UNSIGNED_LONG_LONG == 8 |
| michael@0 | 92 | typedef unsigned long long uint64_t; |
| michael@0 | 93 | # else |
| michael@0 | 94 | # define NO_64BIT_MATH 1 |
| michael@0 | 95 | # endif |
| michael@0 | 96 | #endif |
| michael@0 | 97 | |
| michael@0 | 98 | /* Reasonable defaults for 32 bit machines - you may need to |
| michael@0 | 99 | * edit these definitions for your own machine. */ |
| michael@0 | 100 | #ifndef HAVE_UINT8_T |
| michael@0 | 101 | typedef unsigned char uint8_t; |
| michael@0 | 102 | #endif |
| michael@0 | 103 | #ifndef HAVE_UINT16_T |
| michael@0 | 104 | typedef unsigned short int uint16_t; |
| michael@0 | 105 | #endif |
| michael@0 | 106 | #ifndef HAVE_UINT32_T |
| michael@0 | 107 | typedef unsigned int uint32_t; |
| michael@0 | 108 | #endif |
| michael@0 | 109 | |
| michael@0 | 110 | #ifdef NO_64BIT_MATH |
| michael@0 | 111 | typedef double uint64_t; |
| michael@0 | 112 | /* assert that sizeof(double) == 8 */ |
| michael@0 | 113 | extern uint64_t make64(uint32_t high, uint32_t low); |
| michael@0 | 114 | extern uint32_t high32(uint64_t value); |
| michael@0 | 115 | extern uint32_t low32(uint64_t value); |
| michael@0 | 116 | #endif |
| michael@0 | 117 | |
| michael@0 | 118 | #endif /* SRTP_KERNEL */ |
| michael@0 | 119 | |
| michael@0 | 120 | /* These macros are to load and store 32-bit values from un-aligned |
| michael@0 | 121 | addresses. This is required for processors that do not allow unaligned |
| michael@0 | 122 | loads. */ |
| michael@0 | 123 | #ifdef ALIGNMENT_32BIT_REQUIRED |
| michael@0 | 124 | /* Note that if it's in a variable, you can memcpy it */ |
| michael@0 | 125 | #ifdef WORDS_BIGENDIAN |
| michael@0 | 126 | #define PUT_32(addr,value) \ |
| michael@0 | 127 | { \ |
| michael@0 | 128 | ((unsigned char *) (addr))[0] = (value >> 24); \ |
| michael@0 | 129 | ((unsigned char *) (addr))[1] = (value >> 16) & 0xff; \ |
| michael@0 | 130 | ((unsigned char *) (addr))[2] = (value >> 8) & 0xff; \ |
| michael@0 | 131 | ((unsigned char *) (addr))[3] = (value) & 0xff; \ |
| michael@0 | 132 | } |
| michael@0 | 133 | #define GET_32(addr) ((((unsigned char *) (addr))[0] << 24) | \ |
| michael@0 | 134 | (((unsigned char *) (addr))[1] << 16) | \ |
| michael@0 | 135 | (((unsigned char *) (addr))[2] << 8) | \ |
| michael@0 | 136 | (((unsigned char *) (addr))[3])) |
| michael@0 | 137 | #else |
| michael@0 | 138 | #define PUT_32(addr,value) \ |
| michael@0 | 139 | { \ |
| michael@0 | 140 | ((unsigned char *) (addr))[3] = (value >> 24); \ |
| michael@0 | 141 | ((unsigned char *) (addr))[2] = (value >> 16) & 0xff; \ |
| michael@0 | 142 | ((unsigned char *) (addr))[1] = (value >> 8) & 0xff; \ |
| michael@0 | 143 | ((unsigned char *) (addr))[0] = (value) & 0xff; \ |
| michael@0 | 144 | } |
| michael@0 | 145 | #define GET_32(addr) ((((unsigned char *) (addr))[3] << 24) | \ |
| michael@0 | 146 | (((unsigned char *) (addr))[2] << 16) | \ |
| michael@0 | 147 | (((unsigned char *) (addr))[1] << 8) | \ |
| michael@0 | 148 | (((unsigned char *) (addr))[0])) |
| michael@0 | 149 | #endif // WORDS_BIGENDIAN |
| michael@0 | 150 | #else |
| michael@0 | 151 | #define PUT_32(addr,value) *(((uint32_t *) (addr)) = (value) |
| michael@0 | 152 | #define GET_32(addr) (*(((uint32_t *) (addr))) |
| michael@0 | 153 | #endif |
| michael@0 | 154 | |
| michael@0 | 155 | #endif /* INTEGERS_H */ |
