/usr/include/faifa/endian.h is in libfaifa-dev 0.2~svn82-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #ifndef __endian_compat_h
#define __endian_compat_h
#if defined(__linux__) || defined(__GNU__)
#include <byteswap.h>
#include_next <endian.h>
#elif defined(__APPLE__)
#include <machine/endian.h>
#include <machine/byte_order.h>
#define bswap_16(x) NXSwapShort(x)
#define bswap_32(x) NXSwapInt(x)
#define bswap_64(x) NXSwapLongLong(x)
#elif defined(__FreeBSD__)
#include <sys/endian.h>
#define bswap_16(x) bswap16(x)
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#else
#include <machine/endian.h>
#define bswap_16(x) swap16(x)
#define bswap_32(x) swap32(x)
#define bswap_64(x) swap64(x)
#endif
#ifndef __BYTE_ORDER
#define __BYTE_ORDER BYTE_ORDER
#endif
#ifndef __BIG_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#endif
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define STORE32_LE(X) bswap_32(X)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define STORE32_LE(X) (X)
#else
#error unkown endianness!
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define STORE16_LE(X) bswap_16(X)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define STORE16_LE(X) (X)
#else
#error unkown endianness!
#endif
#endif
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