77 lines
3.4 KiB
C
77 lines
3.4 KiB
C
/***************************************************************************
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* Copyright (C) 2007 by Arep *
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* Support is provided through the forums at *
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* http://wii.console-tribe.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include "misc.h"
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#include <sys/types.h>
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/*************************** BYTE SWAPPING MACROS ***************************/
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// WORDS_BIGENDIAN is defined by the AC_C_BIGENDIAN autoconf macro, in case. On Windows please (un)define manually.
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#ifdef WORDS_BIGENDIAN //!< Swapping macros on big endian systems (Where host b. o. = network b. o.)
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/* This machine's order to big endian */
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#define bo_my2big_16(a) ((u_int16_t)(a))
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#define bo_my2big_32(a) ((u_int32_t)(a))
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/* This machine's order to little endian */
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#define bo_my2little_16(a) ( \
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((((u_int16_t) (a)) & 0x00FF) << 8) + \
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(((u_int16_t) (a)) >> 8) \
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)
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#define bo_my2little_32(a) ( \
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((((u_int32_t) (a)) & 0x000000FF) << 24) + \
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((((u_int32_t) (a)) & 0x0000FF00) << 8) + \
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((((u_int32_t) (a)) & 0x00FF0000) >> 8) + \
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(((u_int32_t) (a)) >> 24) \
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)
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#else //!< Swapping macros on little endian systems
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/* This machine's order to big endian */
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#define bo_my2big_16(a) ( \
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((((u_int16_t) (a)) & 0x00FF) << 8) + \
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(((u_int16_t) (a)) >> 8) \
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)
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#define bo_my2big_32(a) ( \
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((((u_int32_t) (a)) & 0x000000FF) << 24) + \
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((((u_int32_t) (a)) & 0x0000FF00) << 8) + \
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((((u_int32_t) (a)) & 0x00FF0000) >> 8) + \
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(((u_int32_t) (a)) >> 24) \
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)
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/* This machine's order to little endian */
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#define bo_my2little_16(a) ((u_int16_t)(a))
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#define bo_my2little_32(a) ((u_int32_t)(a))
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#endif
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/* These will be handy */
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/* Big endian to this machine's order */
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#define bo_big2my_16(x) bo_my2big_16(x)
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#define bo_big2my_32(x) bo_my2big_32(x)
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/* Little endian to this machine's order */
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#define bo_little2my_16(x) bo_my2little_16(x)
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#define bo_little2my_32(x) bo_my2little_32(x)
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/* There are the most useful ones */
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#define my_htons(x) bo_my2big_16(x)
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#define my_htonl(x) bo_my2big_32(x)
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#define my_ntohs(x) my_htons(x)
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#define my_ntohl(x) my_htonl(x)
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/************************ END OF BYTE SWAPPING MACROS ***********************/
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