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/*
* endian.c:
* Determine platform endianness.
*
* Copyright (c) 2002 . All rights reserved.
* Email: chris@ex-parrot.com; WWW: http://www.ex-parrot.com/~chris/
*
*/
static const char rcsid[] = "$Id: endian.c,v 1.6 2003/11/03 10:40:23 chris Exp $";
#include <stdio.h>
#ifdef USE_SYS_TYPES_H
# include <sys/types.h> /* Solaris etc. */
#else
# include <stdint.h> /* C99 standard. */
#endif
int main(void) {
#if defined(LITTLE_ENDIAN) || defined(_LITTLE_ENDIAN)
printf("#define DRIFTNET_LITTLE_ENDIAN\n");
return 0;
#elif defined(BIG_ENDIAN) || defined(_BIG_ENDIAN)
printf("#define DRIFTNET_BIG_ENDIAN\n");
return 0;
#else
uint32_t a = 0;
*((uint8_t*)&a) = 0xff;
if (a == 0xff000000)
printf("#define DRIFTNET_BIG_ENDIAN\n");
else if (a == 0x000000ff)
printf("#define DRIFTNET_LITTLE_ENDIAN\n");
else
return -1; /* don't know. */
#endif /* endianness test */
return 0;
}