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47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
#include <resolv/arpa/nameser.h>
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/* If the machine allows unaligned access we can do better than using
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the NS_GET16, NS_GET32, NS_PUT16, and NS_PUT32 macros from the
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installed header. */
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#include <string.h>
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#include <stdint.h>
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#include <netinet/in.h>
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extern struct _ns_flagdata _ns_flagdata[] attribute_hidden;
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#if _STRING_ARCH_unaligned
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# undef NS_GET16
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# define NS_GET16(s, cp) \
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do { \
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uint16_t *t_cp = (uint16_t *) (cp); \
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(s) = ntohs (*t_cp); \
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(cp) += NS_INT16SZ; \
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} while (0)
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# undef NS_GET32
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# define NS_GET32(l, cp) \
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do { \
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uint32_t *t_cp = (uint32_t *) (cp); \
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(l) = ntohl (*t_cp); \
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(cp) += NS_INT32SZ; \
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} while (0)
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# undef NS_PUT16
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# define NS_PUT16(s, cp) \
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do { \
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uint16_t *t_cp = (uint16_t *) (cp); \
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*t_cp = htons (s); \
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(cp) += NS_INT16SZ; \
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} while (0)
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# undef NS_PUT32
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# define NS_PUT32(l, cp) \
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do { \
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uint32_t *t_cp = (uint32_t *) (cp); \
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*t_cp = htonl (l); \
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(cp) += NS_INT32SZ; \
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} while (0)
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#endif
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