46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/* $Id: macros.h,v 1.1 2012/04/30 20:37:56 nanard Exp $ */
|
|
/* MiniUPnP project
|
|
* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
|
|
* (c) 2012-2015 Thomas Bernard
|
|
* This software is subject to the conditions detailed
|
|
* in the LICENCE file provided within the distribution */
|
|
|
|
#ifndef MACROS_H_INCLUDED
|
|
#define MACROS_H_INCLUDED
|
|
|
|
#define UNUSED(arg) (void)(arg)
|
|
|
|
#include <stdint.h>
|
|
|
|
#define INLINE static inline
|
|
/* theses macros are designed to read/write unsigned short/long int
|
|
* from an unsigned char array in network order (big endian).
|
|
* Avoid pointer casting, so avoid accessing unaligned memory, which
|
|
* can crash with some cpu's */
|
|
INLINE uint32_t readnu32(const uint8_t * p)
|
|
{
|
|
return (p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3]);
|
|
}
|
|
#define READNU32(p) readnu32(p)
|
|
INLINE uint16_t readnu16(const uint8_t * p)
|
|
{
|
|
return (p[0] << 8 | p[1]);
|
|
}
|
|
#define READNU16(p) readnu16(p)
|
|
INLINE void writenu32(uint8_t * p, uint32_t n)
|
|
{
|
|
p[0] = (n & 0xff000000) >> 24;
|
|
p[1] = (n & 0xff0000) >> 16;
|
|
p[2] = (n & 0xff00) >> 8;
|
|
p[3] = n & 0xff;
|
|
}
|
|
#define WRITENU32(p, n) writenu32(p, n)
|
|
INLINE void writenu16(uint8_t * p, uint16_t n)
|
|
{
|
|
p[0] = (n & 0xff00) >> 8;
|
|
p[1] = n & 0xff;
|
|
}
|
|
#define WRITENU16(p, n) writenu16(p, n)
|
|
|
|
#endif /* MACROS_H_INCLUDED */
|