aboutsummaryrefslogtreecommitdiff
path: root/include/arpa/nameser.h
blob: 449f5b452e2ab0b249e99a1e67fe973e2380dea3 (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
#include <resolv/arpa/nameser.h>

/* If the machine allows unaligned access we can do better than using
   the NS_GET16, NS_GET32, NS_PUT16, and NS_PUT32 macros from the
   installed header.  */
#include <string.h>
#include <stdint.h>
#include <netinet/in.h>

#if _STRING_ARCH_unaligned

# undef NS_GET16
# define NS_GET16(s, cp) \
  do {									      \
    uint16_t *t_cp = (uint16_t *) (cp);					      \
    (s) = ntohs (*t_cp);						      \
    (cp) += NS_INT16SZ;							      \
  } while (0)

# undef NS_GET32
# define NS_GET32(l, cp) \
  do {									      \
    uint32_t *t_cp = (uint32_t *) (cp);					      \
    (l) = ntohl (*t_cp);						      \
    (cp) += NS_INT32SZ;							      \
  } while (0)

# undef NS_PUT16
# define NS_PUT16(s, cp) \
  do {									      \
    uint16_t *t_cp = (uint16_t *) (cp);					      \
    *t_cp = htons (s);							      \
    (cp) += NS_INT16SZ;							      \
  } while (0)

# undef NS_PUT32
# define NS_PUT32(l, cp) \
  do {									      \
    uint32_t *t_cp = (uint32_t *) (cp);					      \
    *t_cp = htonl (l);							      \
    (cp) += NS_INT32SZ;							      \
  } while (0)

#endif