summaryrefslogtreecommitdiff
path: root/libc/inet/ntohl.c
blob: dfadf80d812e41de3bb43a162744cb976dc39caf (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
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
52
53
54
55
56
57
58
59
60
/* vi: set sw=4 ts=4:
 * Functions to convert between host and network byte order.
 *
 * Copyright (C) 2003-2006 by Erik Andersen <andersen@uclibc.org>
 *
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <stdint.h>
#include <endian.h>
#include <byteswap.h>

uint32_t ntohl (uint32_t x);
uint16_t ntohs (uint16_t x);
uint32_t htonl (uint32_t x);
uint16_t htons (uint16_t x);

#if __BYTE_ORDER == __BIG_ENDIAN
uint32_t ntohl (uint32_t x)
{
	return x;
}

uint16_t ntohs (uint16_t x)
{
	return x;
}

uint32_t htonl (uint32_t x)
{
	return x;
}

uint16_t htons (uint16_t x)
{
	return x;
}
#elif __BYTE_ORDER == __LITTLE_ENDIAN
uint32_t ntohl (uint32_t x)
{
	return __bswap_32(x);
}

uint16_t ntohs (uint16_t x)
{
	return __bswap_16(x);
}

uint32_t htonl (uint32_t x)
{
	return __bswap_32(x);
}

uint16_t htons (uint16_t x)
{
	return __bswap_16(x);
}
#else
#error "You seem to have an unsupported byteorder"
#endif