NetBSD/common/lib/libc/net/htons.c

27 lines
455 B
C

/* $NetBSD: htons.c,v 1.3 2012/03/21 20:02:56 he Exp $ */
/*
* Written by J.T. Conklin <jtc@NetBSD.org>.
* Public domain.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: htons.c,v 1.3 2012/03/21 20:02:56 he Exp $");
#endif
#include <sys/types.h>
#undef htons
uint16_t
htons(uint16_t x)
{
#if BYTE_ORDER == LITTLE_ENDIAN
u_char *s = (void *) &x;
return (uint16_t)(s[0] << 8 | s[1]);
#else
return x;
#endif
}