summaryrefslogtreecommitdiff
path: root/sys/lib/libkern/htonl.c
blob: ad1b47b98d2ca4c9414071b3033ccfa5fed842d7 (plain)
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
/*
 * Written by J.T. Conklin <jtc@netbsd.org>.
 * Public domain.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$OpenBSD: htonl.c,v 1.5 2004/11/28 07:23:41 mickey Exp $";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <machine/endian.h>

#undef htonl

u_int32_t
htonl(x)
	u_int32_t x;
{
#if BYTE_ORDER == LITTLE_ENDIAN
	u_char *s = (u_char *)&x;
	return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]);
#else
	return x;
#endif
}