1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
26 typedef unsigned char u8;
30 typedef unsigned short u16;
34 typedef unsigned int u32;
37 #ifdef WORDS_BIGENDIAN /* big endian host */
39 #define le_to_h_u32(x) (u32)(x[0] | x[1] << 8 | x[2] << 16 | x[3] << 24)
40 #define le_to_h_u16(x) (u16)(x[0] | x[1] << 8)
41 #define be_to_h_u32(x) (*(u32*)(x))
42 #define be_to_h_u16(x) (*(u16*)(x))
44 #define h_u32_to_le(buf, val) \
46 buf[3] = (val & 0xff000000) >> 24; \
47 buf[2] = (val & 0x00ff0000) >> 16; \
48 buf[1] = (val & 0x0000ff00) >> 8; \
49 buf[0] = (val & 0x000000ff); \
52 #define h_u16_to_le(buf, val) \
54 buf[0] = (val & 0xff000) >> 8; \
55 buf[1] = (val & 0x00ff); \
58 #define h_u32_to_be(buf, val) do { *(u32*)(buf) = (val); } while (0)
59 #define h_u16_to_be(buf, val) do { *(u16*)(buf) = (val); } while (0)
61 #else /* little endian host */
62 #define le_to_h_u32(x) (*(u32*)(x))
63 #define le_to_h_u16(x) (*(u16*)(x))
64 #define be_to_h_u32(x) (u32)(x[3] | x[2] << 8 | x[1] << 16 | x[0] << 24)
65 #define be_to_h_u16(x) (u16)(x[1] | x[0] << 8)
67 #define h_u32_to_le(buf, val) do { *(u32*)(buf) = (val); } while (0)
68 #define h_u16_to_le(buf, val) do { *(u16*)(buf) = (val); } while (0)
70 #define h_u32_to_be(buf, val) \
72 buf[0] = (val & 0xff000000) >> 24; \
73 buf[1] = (val & 0x00ff0000) >> 16; \
74 buf[2] = (val & 0x0000ff00) >> 8; \
75 buf[3] = (val & 0x000000ff); \
78 #define h_u16_to_be(buf, val) \
80 buf[0] = (val & 0xff000) >> 8; \
81 buf[1] = (val & 0x00ff); \