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/*
* Copyright 2006 Serge van den Boom <svdb@stack.nl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Routines for changing the endianness of values.
// I'm not using ntohs() etc. as those would require include files that may
// have conflicting definitions. This is a problem on Windows, where these
// functions are in winsock2.h, which includes windows.h, which includes
// pretty much Microsoft's complete collection of .h files.
#ifndef LIBS_NETWORK_BYTESEX_H_
#define LIBS_NETWORK_BYTESEX_H_
#include "port.h"
// for inline
#include "endian_uqm.h"
// for WORDS_BIGENDIAN
#include "types.h"
static inline uint16
swapBytes16(uint16 x) {
return (x << 8) | (x >> 8);
}
static inline uint32
swapBytes32(uint32 x) {
return (x << 24)
| ((x & 0x0000ff00) << 8)
| ((x & 0x00ff0000) >> 8)
| (x >> 24);
}
#ifdef WORDS_BIGENDIAN
// Already in network order.
static inline uint16
hton16(uint16 x) {
return x;
}
static inline uint32
hton32(uint32 x) {
return x;
}
static inline uint16
ntoh16(uint16 x) {
return x;
}
static inline uint32
ntoh32(uint32 x) {
return x;
}
#else /* !defined(WORDS_BIGENDIAN) */
// Need to swap bytes
static inline uint16
hton16(uint16 x) {
return swapBytes16(x);
}
static inline uint32
hton32(uint32 x) {
return swapBytes32(x);
}
static inline uint16
ntoh16(uint16 x) {
return swapBytes16(x);
}
static inline uint32
ntoh32(uint32 x) {
return swapBytes32(x);
}
#endif /* defined(WORDS_BIGENDIAN) */
#endif /* LIBS_NETWORK_BYTESEX_H_ */
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