sdk/lib/cryptlib/util.c at master · huwcampbell.com/reactos

Reactos

reactos / sdk / lib / cryptlib / util.c

at master 26 lines 534 B view raw

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Colin Finck Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys. 8y ago

c2c66aff

 1
 2
 3#if !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 4#include <stdlib.h>
 5#include <intrin.h>
 6
 7void
 8byteReverse(unsigned char *buf, unsigned longs)
 9{
10    unsigned int t;
11
12    do
13    {
14#if 0
15        t = (unsigned int)((unsigned)buf[3] << 8 | buf[2]) << 16 |
16            ((unsigned)buf[1] << 8 | buf[0]);
17#else
18        t = _byteswap_ulong(*(unsigned int *)buf);
19#endif
20        *(unsigned int *)buf = t;
21        buf += 4;
22    } while (--longs);
23}
24
25#endif // !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
26