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/*-
* Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD: src/lib/libarchive/archive_endian.h,v 1.4 2008/12/06 06:12:24 kientzle Exp $
*
* Borrowed from FreeBSD's <sys/endian.h>
*/
#ifndef __LIBARCHIVE_BUILD
#error This header is only to be used internally to libarchive.
#endif
/* Note: This is a purely internal header! */
/* Do not use this outside of libarchive internal code! */
#ifndef ARCHIVE_ENDIAN_H_INCLUDED
#define ARCHIVE_ENDIAN_H_INCLUDED
/*
* Disabling inline keyword for compilers known to choke on it:
* - Watcom C++ in C code. (For any version?)
* - SGI MIPSpro
* - SunPro C
* - Microsoft Visual C++ 6.0 (supposedly newer versions too)
*/
#if defined(__WATCOMC__) || defined(__sgi) || defined(__hpux) || defined(__BORLANDC__) || defined(__SUNPRO_C)
#define inline
#elif defined(_MSC_VER) || defined(__osf__)
#define inline __inline
#endif
/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
static inline uint16_t
archive_be16dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[0] << 8) | p[1]);
}
static inline uint32_t
archive_be32dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
static inline uint64_t
archive_be64dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return (((uint64_t)archive_be32dec(p) << 32) | archive_be32dec(p + 4));
}
static inline uint16_t
archive_le16dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[1] << 8) | p[0]);
}
static inline uint32_t
archive_le32dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
}
static inline uint64_t
archive_le64dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return (((uint64_t)archive_le32dec(p + 4) << 32) | archive_le32dec(p));
}
static inline void
archive_be16enc(void *pp, uint16_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = (u >> 8) & 0xff;
p[1] = u & 0xff;
}
static inline void
archive_be32enc(void *pp, uint32_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = (u >> 24) & 0xff;
p[1] = (u >> 16) & 0xff;
p[2] = (u >> 8) & 0xff;
p[3] = u & 0xff;
}
static inline void
archive_be64enc(void *pp, uint64_t u)
{
unsigned char *p = (unsigned char *)pp;
archive_be32enc(p, u >> 32);
archive_be32enc(p + 4, u & 0xffffffff);
}
static inline void
archive_le16enc(void *pp, uint16_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = u & 0xff;
p[1] = (u >> 8) & 0xff;
}
static inline void
archive_le32enc(void *pp, uint32_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = u & 0xff;
p[1] = (u >> 8) & 0xff;
p[2] = (u >> 16) & 0xff;
p[3] = (u >> 24) & 0xff;
}
static inline void
archive_le64enc(void *pp, uint64_t u)
{
unsigned char *p = (unsigned char *)pp;
archive_le32enc(p, u & 0xffffffff);
archive_le32enc(p + 4, u >> 32);
}
#endif
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