1*342a1b22SJim906 /*-
2*342a1b22SJim906 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3*342a1b22SJim906 *
4*342a1b22SJim906 * Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
5*342a1b22SJim906 * All rights reserved.
6*342a1b22SJim906 *
7*342a1b22SJim906 * Redistribution and use in source and binary forms, with or without
8*342a1b22SJim906 * modification, are permitted provided that the following conditions
9*342a1b22SJim906 * are met:
10*342a1b22SJim906 * 1. Redistributions of source code must retain the above copyright
11*342a1b22SJim906 * notice, this list of conditions and the following disclaimer.
12*342a1b22SJim906 * 2. Redistributions in binary form must reproduce the above copyright
13*342a1b22SJim906 * notice, this list of conditions and the following disclaimer in the
14*342a1b22SJim906 * documentation and/or other materials provided with the distribution.
15*342a1b22SJim906 *
16*342a1b22SJim906 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*342a1b22SJim906 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*342a1b22SJim906 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*342a1b22SJim906 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*342a1b22SJim906 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*342a1b22SJim906 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*342a1b22SJim906 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*342a1b22SJim906 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*342a1b22SJim906 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*342a1b22SJim906 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*342a1b22SJim906 * SUCH DAMAGE.
27*342a1b22SJim906 */
28*342a1b22SJim906 #ifndef FAT_ENDIAN_H
29*342a1b22SJim906 #define FAT_ENDIAN_H
30*342a1b22SJim906
31*342a1b22SJim906
32*342a1b22SJim906 // Modified to support the Haiku FAT driver.
33*342a1b22SJim906
34*342a1b22SJim906 #ifndef FS_SHELL
35*342a1b22SJim906 #include <ByteOrder.h>
36*342a1b22SJim906 #endif
37*342a1b22SJim906
38*342a1b22SJim906
39*342a1b22SJim906 static __inline uint16_t
le16dec(const void * pp)40*342a1b22SJim906 le16dec(const void* pp)
41*342a1b22SJim906 {
42*342a1b22SJim906 uint16 const* twoBytes = (uint16 const*)pp;
43*342a1b22SJim906 return B_LENDIAN_TO_HOST_INT16(*twoBytes);
44*342a1b22SJim906 }
45*342a1b22SJim906
46*342a1b22SJim906
47*342a1b22SJim906 static __inline uint32_t
le32dec(const void * pp)48*342a1b22SJim906 le32dec(const void* pp)
49*342a1b22SJim906 {
50*342a1b22SJim906 uint32 const* fourBytes = (uint32 const*)pp;
51*342a1b22SJim906 return B_LENDIAN_TO_HOST_INT32(*fourBytes);
52*342a1b22SJim906 }
53*342a1b22SJim906
54*342a1b22SJim906
55*342a1b22SJim906 static __inline void
le16enc(void * pp,uint16_t u)56*342a1b22SJim906 le16enc(void* pp, uint16_t u)
57*342a1b22SJim906 {
58*342a1b22SJim906 uint16* twoBytes = (uint16*)pp;
59*342a1b22SJim906 *twoBytes = B_HOST_TO_LENDIAN_INT16(u);
60*342a1b22SJim906 }
61*342a1b22SJim906
62*342a1b22SJim906
63*342a1b22SJim906 static __inline void
le32enc(void * pp,uint32_t u)64*342a1b22SJim906 le32enc(void* pp, uint32_t u)
65*342a1b22SJim906 {
66*342a1b22SJim906 uint32* fourBytes = (uint32*)pp;
67*342a1b22SJim906 *fourBytes = B_HOST_TO_LENDIAN_INT32(u);
68*342a1b22SJim906 }
69*342a1b22SJim906
70*342a1b22SJim906
71*342a1b22SJim906 #endif // FAT_ENDIAN_H
72