glibc/include/arpa/nameser.h

47 lines
1.2 KiB
C

#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>
extern struct _ns_flagdata _ns_flagdata[] attribute_hidden;
#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