xref: /freebsd/contrib/file/src/swap.h (revision 7af41682a96bf7058b82665c33bb9b1bfa079c17)
1*7af41682SXin LI /*
2*7af41682SXin LI  * Copyright (c) Ian F. Darwin 1986-1995.
3*7af41682SXin LI  * Software written by Ian F. Darwin and others;
4*7af41682SXin LI  * maintained 1995-present by Christos Zoulas and others.
5*7af41682SXin LI  *
6*7af41682SXin LI  * Redistribution and use in source and binary forms, with or without
7*7af41682SXin LI  * modification, are permitted provided that the following conditions
8*7af41682SXin LI  * are met:
9*7af41682SXin LI  * 1. Redistributions of source code must retain the above copyright
10*7af41682SXin LI  *    notice immediately at the beginning of the file, without modification,
11*7af41682SXin LI  *    this list of conditions, and the following disclaimer.
12*7af41682SXin LI  * 2. Redistributions in binary form must reproduce the above copyright
13*7af41682SXin LI  *    notice, this list of conditions and the following disclaimer in the
14*7af41682SXin LI  *    documentation and/or other materials provided with the distribution.
15*7af41682SXin LI  *
16*7af41682SXin LI  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*7af41682SXin LI  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*7af41682SXin LI  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*7af41682SXin LI  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20*7af41682SXin LI  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*7af41682SXin LI  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*7af41682SXin LI  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*7af41682SXin LI  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*7af41682SXin LI  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*7af41682SXin LI  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*7af41682SXin LI  * SUCH DAMAGE.
27*7af41682SXin LI  */
28*7af41682SXin LI 
29*7af41682SXin LI #ifdef HAVE_BYTESWAP_H
30*7af41682SXin LI #include <byteswap.h>
31*7af41682SXin LI #endif
32*7af41682SXin LI #ifdef HAVE_SYS_BSWAP_H
33*7af41682SXin LI #include <sys/bswap.h>
34*7af41682SXin LI #endif
35*7af41682SXin LI 
36*7af41682SXin LI #if defined(HAVE_BYTESWAP_H)
37*7af41682SXin LI #define file_swap2(x)	bswap_16(x)
38*7af41682SXin LI #define file_swap4(x)	bswap_32(x)
39*7af41682SXin LI #define file_swap8(x)	bswap_64(x)
40*7af41682SXin LI #elif defined(HAVE_SYS_BSWAP_H)
41*7af41682SXin LI #define file_swap2(x)	bswap16(x)
42*7af41682SXin LI #define file_swap4(x)	bswap32(x)
43*7af41682SXin LI #define file_swap8(x)	bswap64(x)
44*7af41682SXin LI #else
45*7af41682SXin LI file_protected uint16_t file_swap2(uint16_t);
46*7af41682SXin LI file_protected uint32_t file_swap4(uint32_t);
47*7af41682SXin LI file_protected uint64_t file_swap8(uint64_t);
48*7af41682SXin LI #endif
49