/usr/include/asterisk/unaligned.h is in asterisk-dev 1:1.8.13.1~dfsg1-3+deb7u3.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | /*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2009, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
* \brief Handle unaligned data access
*/
#ifndef _ASTERISK_UNALIGNED_H
#define _ASTERISK_UNALIGNED_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#ifdef __GNUC__
/* If we just tell GCC what's going on, we can trust it to behave optimally */
static inline uint64_t get_unaligned_uint64(const void *p)
{
const struct { uint64_t d; } __attribute__((packed)) *pp = p;
return pp->d;
}
static inline unsigned int get_unaligned_uint32(const void *p)
{
const struct { unsigned int d; } __attribute__((packed)) *pp = p;
return pp->d;
}
static inline unsigned short get_unaligned_uint16(const void *p)
{
const struct { unsigned short d; } __attribute__((packed)) *pp = p;
return pp->d;
}
static inline void put_unaligned_uint64(void *p, uint64_t datum)
{
struct { uint64_t d; } __attribute__((packed,may_alias)) *pp = p;
pp->d = datum;
}
static inline void put_unaligned_uint32(void *p, unsigned int datum)
{
struct { unsigned int d; } __attribute__((packed)) *pp = p;
pp->d = datum;
}
static inline void put_unaligned_uint16(void *p, unsigned short datum)
{
struct { unsigned short d; } __attribute__((packed)) *pp = p;
pp->d = datum;
}
#elif defined(SOLARIS) && defined(__sparc__)
static inline uint64_t get_unaligned_uint64(const void *p)
{
const unsigned char *cp = p;
return
(((uint64_t) cp[0]) << 56) |
(((uint64_t) cp[1]) << 48) |
(((uint64_t) cp[2]) << 40) |
(((uint64_t) cp[3]) << 32) |
(((uint64_t) cp[4]) << 24) |
(((uint64_t) cp[5]) << 16) |
(((uint64_t) cp[6]) << 8) |
(((uint64_t) cp[7]) << 0);
}
static inline unsigned int get_unaligned_uint32(const void *p)
{
const unsigned char *cp = p;
return (cp[0] << 24) | (cp[1] << 16) | (cp[2] << 8) | cp[3];
}
static inline unsigned short get_unaligned_uint16(const void *p)
{
const unsigned char *cp = p;
return (cp[0] << 8) | cp[1] ;
}
static inline void put_unaligned_uint64(void *p, uint64_t datum)
{
unsigned char *cp = p;
cp[0] = (datum >> 56) & 0xff;
cp[1] = (datum >> 48) & 0xff;
cp[2] = (datum >> 40) & 0xff;
cp[3] = (datum >> 32) & 0xff;
cp[4] = (datum >> 24) & 0xff;
cp[5] = (datum >> 16) & 0xff;
cp[6] = (datum >> 8) & 0xff;
cp[7] = (datum >> 0) & 0xff;
}
static inline void put_unaligned_uint32(void *p, unsigned int datum)
{
unsigned char *cp = p;
cp[0] = datum >> 24;
cp[1] = datum >> 16;
cp[2] = datum >> 8;
cp[3] = datum;
}
static inline void put_unaligned_uint16(void *p, unsigned int datum)
{
unsigned char *cp = p;
cp[0] = datum >> 8;
cp[1] = datum;
}
#else /* Not GCC, not Solaris/SPARC. Assume we can handle direct load/store. */
#define get_unaligned_uint64(p) (*((uint64_t *)(p)))
#define get_unaligned_uint32(p) (*((unsigned int *)(p)))
#define get_unaligned_uint16(p) (*((unsigned short *)(p)))
#define put_unaligned_uint64(p,d) do { uint64_t *__P = (p); *__P = d; } while(0)
#define put_unaligned_uint32(p,d) do { unsigned int *__P = (p); *__P = d; } while(0)
#define put_unaligned_uint16(p,d) do { unsigned short *__P = (p); *__P = d; } while(0)
#endif
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif /* _ASTERISK_UNALIGNED_H */
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